Normally, the protective goggle will be provided for the high power green laser pointer
The advantages of fiber lasers. Fiber laser as a representative of the third generation of laser technology, has the following advantages: (1) glass fiber, low manufacturing cost, the advantages of miniaturization, intensification of the technology is mature and can spare fiber; (2) glass fiber on the incident pump light does not need that as the crystal strict phase matching, which is due to the Stark splitting of a glass substrate due to non-uniform broadening caused by absorption with a wide sake; (3) of the glass material has a very low volume area ratio, fast heat dissipation. low loss, high on the conversion efficiency, low lasing threshold. It is based on the basic function of the common green laser pointer .
The output laser wavelength: This is because the rare earth ion energy levels are very rich in its variety of rare earth ions; (5) Tunable: broad fluorescence spectrum due to the rare earth ion energy level width and glass fiber. (6) fiber laser cavity optical lenses, adjustment-free, maintenance-free, high stability of the advantages of conventional lasers can not match. (7) fiber exported, making the laser can be easily qualified for a variety of multi-dimensional arbitrary space processing applications, the mechanical system design is very simple. (8) qualified for the poor working conditions, has a high tolerance for dust, shock, shock, humidity, temperature. (9) without thermoelectric cooling and water cooling, just a simple air-cooled. This kind of usa green laser pointer is called the wireless presenter laser pointer.
High electro-optical efficiency: an integrated electro-optical efficiency of up to 20% or more, significant savings in power consumption at work, saving operating costs. (11) high power, the commercialization of the fiber laser is six kilowatts. High-power fiber lasers and cladding pump technology. Double-clad fiber is undoubtedly a major breakthrough in the field of optical fiber, which makes the production of high-power fiber lasers and high-power optical amplifiers become a reality. Since 1988 E Snitzer is the first description of a cladding-pumped fiber laser cladding-pumped technology has been widely applied to fiber lasers and fiber amplifiers, as the production of high power fiber lasers the preferred way to. Cladding pumping technology, consists of four levels: (1) fiber core; ② The inner cladding; ③ outsourcing layer; ④ protective layer. The wireless presenter green laser pointer can also be called as the wireless presenter.
The pump light coupled into the inner cladding (inner cladding is generally shaped structure, oval, square, plum-shaped, D-shaped hexagon, etc.), including cladding and outsourcing layer in the light (general design for the round) between bounces back and forth several times through the single-mode core absorption. The fiber of this structure does not require the pump alone, single-mode lasers, and fiber length pumped, so the choice of high-power multimode laser diode array pump source, will be more than about 70% of pump energy indirectly coupled to the core, greatly improving the efficiency of the pump. Cladding pumped technical characteristics of such lasers have the outstanding performance of the following aspects. 1) high-power multimode pump diode modules can be radiated out 100 watts of optical power. This kind of green laser pointer can be designated as the wireless presentation controller and PPT presenter.
Multiple multimode pump diode parallel set, you can allow the design of high power output of fiber lasers. 2) do not need the wide surface of the thermoelectric coolers such a high-power multimode diode high temperature, simply air-cooled, low cost. Activity within a wide pump wavelength range of high-power fiber lasers cladding optical fiber doped with erbium / ytterbium rare earth elements, there is a wide, flat and because of the light wave absorption (930-970nm), diode pumped without any type of wavelength stabilization device 4) high efficiency pump light several times across the single-mode fiber core, so its high utilization rate. The wireless presenter green laser pointer can be divided into two kind of laser pointer according to the adopted frequency technology.
Wednesday, February 29, 2012
The flash disk green laser pointer has the function of flash disk
The CO2 molecule laser transition energy level diagram. CO2 laser excitation conditions: the discharge tube, usually enter the tens of mA or hundreds of mA DC current. Discharge, the nitrogen molecules in the gas mixture in the discharge tube due to electron impact has been aroused. When molecules are excited nitrogen and the CO2 molecule collision, the N2 molecules of the energy transfer to the CO2 molecule, the CO2 molecules from the low-energy level transition on the energy level inversion issued by the laser. Structure: (1) laser tube: is the most critical components of the laser machine. Commonly used in hard glass, general layer telescopic structure. green laser pointer will make it more convenient for the customer to use the laser pointer in the practical use.
The innermost layer is the discharge tube, Layer 2 water-cooled casing, the outermost layer of the gas tube. The carbon dioxide laser discharge tube diameter than the He-Ne laser tube thick. Thickness of the discharge tube are generally no effect on the output power, spot size caused by diffraction effects are taken into consideration, should be based on the length of the tube. The length of the tube a little rough, tube short fine point. Discharge tube length is proportional to the output power. A certain length, per meter discharge tube length of the output power increases with the total length of Plus water-cooled cooling the working gas, the output power stability. Discharge tube at both ends and the gas pipe connection, namely, the gas pipe with a hole at one end connected with the discharge tube. The flash disk green laser pointer has the function of flash disk.
The other end through a spiral back to the trachea and the discharge tube connected, so you can make the circular flow gas discharge tube and gas tube, gas discharge tube is ready to exchange. CO2 laser structure. Optical resonator: CO2 laser resonator commonly used concave cavity mirror K8 optical glass or optical quartz processing of National Cheng Kung radius of curvature concave mirror, the mirror coated with highly reflective metal film - gold-plated membrane wavelength of 10.6μm at the reflection rate of 98.8%, and chemically stable. Carbon dioxide emitted light to infrared light. Therefore, the mirror needs to be applied through infrared optical materials, because the ordinary optical glass for infrared light through. Requires to open a small hole in the center of the reflecting mirror. So that the customer can use this kind of usa green laser pointer to store the data.
Resealing a through 10.6μm laser infrared materials to a closed gas. This part of the resonant cavity laser to form a laser from holes output cavity. Power and pump: a closed CO2 laser discharge current is small, cold electrode, cylindrical cathode made of molybdenum or nickel plate. 30 ~ 40mA operating current, the area of the cathode cylinder 500cm2, not the lens contamination, plus a light bar between the cathode and the lens. Pumped using a continuous DC power to stimulate. Motivate the principle of the CO2 laser DC power DC voltage AC voltage in the city transformer to enhance access to high-voltage and high-voltage rectifier and high-pressure filter in the laser tube. And at the same time the laser function of green laser pointer can be applied.
The lasers most of the incentive system, the laser material and optical resonator composed of three parts. The incentive system is to produce solar energy, electrical energy or chemical device. Incentives currently in use, light, electricity, or chemical reactions. The laser material is able to generate the laser material, such as ruby, beryllium, glass, neon, semiconductor, organic dyes and so on. The role of the optical resonator be used to enhance the brightness of the output laser, regulation and the selected wavelength and direction of the laser. Standard for technical reasons: laser laser marking technology in recent years more and more applications in the field of printing, laser marking can be applied to a variety of materials including plastics and rubber, metal, and silicon wafers. The 3 in 1 green laser pointer is also very popular.
The innermost layer is the discharge tube, Layer 2 water-cooled casing, the outermost layer of the gas tube. The carbon dioxide laser discharge tube diameter than the He-Ne laser tube thick. Thickness of the discharge tube are generally no effect on the output power, spot size caused by diffraction effects are taken into consideration, should be based on the length of the tube. The length of the tube a little rough, tube short fine point. Discharge tube length is proportional to the output power. A certain length, per meter discharge tube length of the output power increases with the total length of Plus water-cooled cooling the working gas, the output power stability. Discharge tube at both ends and the gas pipe connection, namely, the gas pipe with a hole at one end connected with the discharge tube. The flash disk green laser pointer has the function of flash disk.
The other end through a spiral back to the trachea and the discharge tube connected, so you can make the circular flow gas discharge tube and gas tube, gas discharge tube is ready to exchange. CO2 laser structure. Optical resonator: CO2 laser resonator commonly used concave cavity mirror K8 optical glass or optical quartz processing of National Cheng Kung radius of curvature concave mirror, the mirror coated with highly reflective metal film - gold-plated membrane wavelength of 10.6μm at the reflection rate of 98.8%, and chemically stable. Carbon dioxide emitted light to infrared light. Therefore, the mirror needs to be applied through infrared optical materials, because the ordinary optical glass for infrared light through. Requires to open a small hole in the center of the reflecting mirror. So that the customer can use this kind of usa green laser pointer to store the data.
Resealing a through 10.6μm laser infrared materials to a closed gas. This part of the resonant cavity laser to form a laser from holes output cavity. Power and pump: a closed CO2 laser discharge current is small, cold electrode, cylindrical cathode made of molybdenum or nickel plate. 30 ~ 40mA operating current, the area of the cathode cylinder 500cm2, not the lens contamination, plus a light bar between the cathode and the lens. Pumped using a continuous DC power to stimulate. Motivate the principle of the CO2 laser DC power DC voltage AC voltage in the city transformer to enhance access to high-voltage and high-voltage rectifier and high-pressure filter in the laser tube. And at the same time the laser function of green laser pointer can be applied.
The lasers most of the incentive system, the laser material and optical resonator composed of three parts. The incentive system is to produce solar energy, electrical energy or chemical device. Incentives currently in use, light, electricity, or chemical reactions. The laser material is able to generate the laser material, such as ruby, beryllium, glass, neon, semiconductor, organic dyes and so on. The role of the optical resonator be used to enhance the brightness of the output laser, regulation and the selected wavelength and direction of the laser. Standard for technical reasons: laser laser marking technology in recent years more and more applications in the field of printing, laser marking can be applied to a variety of materials including plastics and rubber, metal, and silicon wafers. The 3 in 1 green laser pointer is also very popular.
The red usa green laser pointer was relatively lower in the cost and price
Various types of solid, gas, semiconductor, and chemical lasers have been successfully developed. In basic research and key technologies, a series of new concepts, new methods and new technologies (such as the cavity Q-mutation and the rotating mirror Q, traveling-wave amplification, the use of rhenium Department of ions, free electron oscillation radiation, etc.) have put forward and get implementation, many of them original. At the same time as the new light source with high brightness, high directivity, high-quality, outstanding features, the laser quickly used in various technical fields, showing strong vitality and competitiveness. Communications, laser show transmission of television images, in September 1964, November 1964, call of 3 to 30 km. The red usa green laser pointer was relatively lower in the cost and price.
Industry, in May 1965 laser drilling machine for drawing die punching production, access to significant economic benefits. Medicine, laser retinal welding carried out on animals and clinical trials in June 1965. National defense, in December 1965 to develop successful laser diffuse reflectance rangefinder (accuracy of 10 m / 10 km), developed a remote control pulse laser Doppler velocimetry in April 1966. Classification of the laser hazard class. Observe the maximum possible impact of the MPE (maximal possible effect on the eye based on the risk classification of the laser on the human body, light tree) to do the benchmark can be divided into one to four. Laser product manufacturers should be Class II, III and IV of the warning label to the corresponding laser products. The green laser beam green laser pointer is more expensive.
Class I: low output laser (power is less than 0.4mW), regardless of the conditions under which the eyes and skin, will not exceed the MPE value will not exceed the MPE values, even through the optical system is focused. Can guarantee the safety of design, do not need special management. Typical applications such as laser pointer, CD player, CD-ROM devices, geological prospecting equipment and laboratory analysis instruments. Class II: low output visible laser (power 0.4mW-1mW), closed eyes, the reaction time was 0.25 seconds, use this time to calculate the exposure amount can not exceed the MPE values. Usually less than 1mW laser, can cause dizziness not think, and to protect with closed eyes. For the green laser technology of green laser pointer is more complicated and the cost of the green laser pointer is higher.
Can not be completely safe, do not directly observed within the beam, do not use Class II. Laser direct exposure to the eyes of others, to avoid observation afar equipment Class II laser. Typical applications such as classroom presentations, laser pointer, aiming devices and range finders. Class III: The output of the laser, the beam directly into the eyes, produces injury, and for some security reasons, and further divided into IIIA and IIIB level. IIIA level for visible continuous laser output for the 1-5mW laser beam, the beam energy density should not exceed 25W / m?? M, to avoid Yuanwang equipment observed IIIA laser, so that may increase the risk. A lot in common, such as laser pointer, laser scanner, a typical application of IIIA and Class II level. The green laser beam green laser pointer is mainly used in the engineering architecture and astronomical application.
III B grade for the 5-500mW continuous wave laser, it is dangerous to directly observed within the beam. However, the minimum irradiation distance of 13cm, maximum exposure time of ten seconds the following for safety. Typical applications such as IIIB laser spectrometry and entertainment light shows. ClassIV: continuous wave laser of high output (greater than 500mW), higher than the third level, there is a fire hazard, diffuse reflection is dangerous. Typical applications such as surgery, research, cutting, welding, and micromachining processing. Laser treatment on the security measures. Applications like laser discs for general home or office, or laser printers and other machines, the laser is not injection external structure formation, to ensure safety. And then green laser pointer develops more and more.
Industry, in May 1965 laser drilling machine for drawing die punching production, access to significant economic benefits. Medicine, laser retinal welding carried out on animals and clinical trials in June 1965. National defense, in December 1965 to develop successful laser diffuse reflectance rangefinder (accuracy of 10 m / 10 km), developed a remote control pulse laser Doppler velocimetry in April 1966. Classification of the laser hazard class. Observe the maximum possible impact of the MPE (maximal possible effect on the eye based on the risk classification of the laser on the human body, light tree) to do the benchmark can be divided into one to four. Laser product manufacturers should be Class II, III and IV of the warning label to the corresponding laser products. The green laser beam green laser pointer is more expensive.
Class I: low output laser (power is less than 0.4mW), regardless of the conditions under which the eyes and skin, will not exceed the MPE value will not exceed the MPE values, even through the optical system is focused. Can guarantee the safety of design, do not need special management. Typical applications such as laser pointer, CD player, CD-ROM devices, geological prospecting equipment and laboratory analysis instruments. Class II: low output visible laser (power 0.4mW-1mW), closed eyes, the reaction time was 0.25 seconds, use this time to calculate the exposure amount can not exceed the MPE values. Usually less than 1mW laser, can cause dizziness not think, and to protect with closed eyes. For the green laser technology of green laser pointer is more complicated and the cost of the green laser pointer is higher.
Can not be completely safe, do not directly observed within the beam, do not use Class II. Laser direct exposure to the eyes of others, to avoid observation afar equipment Class II laser. Typical applications such as classroom presentations, laser pointer, aiming devices and range finders. Class III: The output of the laser, the beam directly into the eyes, produces injury, and for some security reasons, and further divided into IIIA and IIIB level. IIIA level for visible continuous laser output for the 1-5mW laser beam, the beam energy density should not exceed 25W / m?? M, to avoid Yuanwang equipment observed IIIA laser, so that may increase the risk. A lot in common, such as laser pointer, laser scanner, a typical application of IIIA and Class II level. The green laser beam green laser pointer is mainly used in the engineering architecture and astronomical application.
III B grade for the 5-500mW continuous wave laser, it is dangerous to directly observed within the beam. However, the minimum irradiation distance of 13cm, maximum exposure time of ten seconds the following for safety. Typical applications such as IIIB laser spectrometry and entertainment light shows. ClassIV: continuous wave laser of high output (greater than 500mW), higher than the third level, there is a fire hazard, diffuse reflection is dangerous. Typical applications such as surgery, research, cutting, welding, and micromachining processing. Laser treatment on the security measures. Applications like laser discs for general home or office, or laser printers and other machines, the laser is not injection external structure formation, to ensure safety. And then green laser pointer develops more and more.
Tuesday, February 28, 2012
The green green laser pointer is widely used in the daily
High-voltage pulse and the lights flashing may result in Mars, and cause a fire. The direct irradiation of the laser in the laser process, as well as a reflection of continuous infrared laser light accidental irradiation, may ignite flammable materials. Other potential fire hazards, including flammable materials in the circuit and four laser attachment. Noise, X-ray radiation, harmful gases, ionizing radiation, compressed gases, laser generated suspended solids and pollutants (LGAC). Summary summary of general safety procedures. Unless the permission, do not use laser or near the laser work. Unless the permit, do not enter the room or scope of the laser is in operation.
The green green laser pointer is widely used in the daily use, especially the commonly seen locations without any specific requirements for the laser pointer.
Correct use of safety devices, make sure the equipment is scheduled to laser power before. Include: opaque baffles, non-reflective surface fire, goggles, masks, door interlock and ventilation equipment to prepare for the toxic substances. Ensure that the pulsed laser is not inadvertently under power. Before laser no one care, capacitor discharge, and turn off the power. Do not stare directly into the laser beam. In the laser commissioning and laser operation, wear appropriate goggles. Laser debugger must be in the lowest power. Limit exposure to the laser facility. One way is to explicitly specify the right personnel out of the room placed laser. And at the same time, the focus can be manually adjusted for this kind of usa green laser pointer .
Installed outside of the door can be locked to door warning lights and warning signs, such as access restrictions. When the laser is working, do not let the laser unattended. Take off any jewelery to avoid inadvertently reflection of the laser. Laser Measurement. Generally do not have dangerous levels of the necessary monitoring of laser radiation in the workplace. This is very different from the provisions of other risk factors. Due to the laser beam is highly directional, and can not arbitrarily change the optical path, the laser radiation detector is expensive, complex structure, the general safety requirements are not subject to on-site monitoring, but to emphasize the danger level of control the laser device, it should be equipment suppliers responsible for the determination of whether the devices comply with the standard. green laser pointer owns good quality, strict and perfect parameter and high performance and cost performance.
Classification of laser danger. According to the safety of GB/Z18461-2001 of laser products - producers on the laser radiation safety checklist. Class 1 (not dangerous exposure is safe laser) in the appropriate working status for the foreseeable. Category 2 (sustained exposure can damage the eye before the laser beam. Instantaneous exposure (less than 0.25 seconds) will not damage the eyes must be visible) emission visible radiation (wavelengths in the range of 400-700nm) laser. Usually by the avoidance response to provide protection. 3a class (if seen directly, or see the beam through the optical device, it may cause harm to the human eye) with the naked eye safe laser. It will enhance the result of the quality inspection of green laser pointer .
Avoidance response, including the blink of an eye, providing protection for the laser emission in the 400 ^ 700nm wavelength range. At other wavelengths, the danger posed by the naked eye is not more than 1 class. Class 3A lasers with optical instruments (such as binoculars, telescopes, microscopes) to observe the beam within can be dangerous. Class 3b (direct or transient exposure to the laser beam will damage eyes or skin) of such laser direct beam is always dangerous to observe. To observe the diffuse reflection is generally safe. 4 (not only directly or transient exposure to laser beam will damage eyes and skin, the stray light of the laser beam, the reflection light can also damage the eyes and skin. The defect of green laser pointer contains the burr of the appearance of the laser pointer.
The green green laser pointer is widely used in the daily use, especially the commonly seen locations without any specific requirements for the laser pointer.
Correct use of safety devices, make sure the equipment is scheduled to laser power before. Include: opaque baffles, non-reflective surface fire, goggles, masks, door interlock and ventilation equipment to prepare for the toxic substances. Ensure that the pulsed laser is not inadvertently under power. Before laser no one care, capacitor discharge, and turn off the power. Do not stare directly into the laser beam. In the laser commissioning and laser operation, wear appropriate goggles. Laser debugger must be in the lowest power. Limit exposure to the laser facility. One way is to explicitly specify the right personnel out of the room placed laser. And at the same time, the focus can be manually adjusted for this kind of usa green laser pointer .
Installed outside of the door can be locked to door warning lights and warning signs, such as access restrictions. When the laser is working, do not let the laser unattended. Take off any jewelery to avoid inadvertently reflection of the laser. Laser Measurement. Generally do not have dangerous levels of the necessary monitoring of laser radiation in the workplace. This is very different from the provisions of other risk factors. Due to the laser beam is highly directional, and can not arbitrarily change the optical path, the laser radiation detector is expensive, complex structure, the general safety requirements are not subject to on-site monitoring, but to emphasize the danger level of control the laser device, it should be equipment suppliers responsible for the determination of whether the devices comply with the standard. green laser pointer owns good quality, strict and perfect parameter and high performance and cost performance.
Classification of laser danger. According to the safety of GB/Z18461-2001 of laser products - producers on the laser radiation safety checklist. Class 1 (not dangerous exposure is safe laser) in the appropriate working status for the foreseeable. Category 2 (sustained exposure can damage the eye before the laser beam. Instantaneous exposure (less than 0.25 seconds) will not damage the eyes must be visible) emission visible radiation (wavelengths in the range of 400-700nm) laser. Usually by the avoidance response to provide protection. 3a class (if seen directly, or see the beam through the optical device, it may cause harm to the human eye) with the naked eye safe laser. It will enhance the result of the quality inspection of green laser pointer .
Avoidance response, including the blink of an eye, providing protection for the laser emission in the 400 ^ 700nm wavelength range. At other wavelengths, the danger posed by the naked eye is not more than 1 class. Class 3A lasers with optical instruments (such as binoculars, telescopes, microscopes) to observe the beam within can be dangerous. Class 3b (direct or transient exposure to the laser beam will damage eyes or skin) of such laser direct beam is always dangerous to observe. To observe the diffuse reflection is generally safe. 4 (not only directly or transient exposure to laser beam will damage eyes and skin, the stray light of the laser beam, the reflection light can also damage the eyes and skin. The defect of green laser pointer contains the burr of the appearance of the laser pointer.
The exact height of battery of green laser pointer is 65±2.0mm
Photonics, electronics, mechanical and electrical, mechanical, electronic, chemical and chemical related professional undergraduate and graduate students. Familiar with the knowledge of the Applied Optics and Optical software use; familiar with the process of optoelectronic products, works. Master the knowledge of the technology applications of optoelectronic products and processes. 3, familiar with the electronic power base circuit, electronic circuit and system design, commissioning experience; familiar with the use of a variety of electronic instrumentation. Familiar with the process of crystal production, works and production technology, application of knowledge. To master the theory of crystal growth, and have good research and practical ability. To understand the crystal testing means and Proficiency Test Equipment. Of course, the green laser beam light of green laser pointer has some shortcomings compared with other kinds of laser beam lights of the laser pointer.
Has a strong drawing, MAP READING ABILITY, master solidwork, office and other related computer software applications. Has a strong English reading and writing ability. Laser Power Supply Engineer: Bachelor degree or above, electricity or electronics related professionals. More than three years the field of switching power supply design experience, familiar with a variety of ac-dc, dc-dc circuit structure and principles, with a solid mathematical basis of analog circuits, analog circuit has a profound understanding of a profound understanding of the switching power supply, for switching power supply installation certification and emc standards requirements. Able to finish the single-arm, multi-output power supply design or module power supply design. Independently of the switching power supply design and production of the whole process, from project identification, circuit design, component selection, circuit testing and debugging, pcb board design, and electrical performance testing. The battery is especially used by some usa green laser pointer of the specific specification.
Familiar with the switching power supply performance requirements and test requirements, writing of new products related documents. Id power supply design experience staff priority. Laser Safety. The potential hazards of the laser. The laser beam hazards. Laser to produce high strength and high directionality of the beam. If directed, reflected or focused upon an object, the laser will be partially absorbed, will make the surface or the internal temperature rises, causing local changes or deformation of the materials. The body of the laser output is vulnerable, exposed in front of the laser can cause eye and skin injury in a particular environment. The application of laser in medicine has been expanded, and applications are expanding, such as not pay attention to the safety of the laser in the application process, it may cause accidental injury. Actually, Li of battery of green laser pointer is a kind of metallic element.
Laser damage to the eyes. The role of the wavelength of the eye. Laser damage, the most serious damage to the body in the eye. Wavelength of about 400nm (violet) to 1400nm (near infrared) laser, the absorption rate of the refractive medium low transmission rate, and the ability to focus (ie, concentrating power) of the refractive media. High intensity visible or near infrared light enters the eye through the refractive media of the human eye, the accumulation of light in the retina. The laser energy density and power density in the retina to several thousand or even several times, a lot of light on the retina at the moment poly Retinal photoreceptor cell layer and temperature increases, as well as coagulation necrosis of photoreceptor cells but lost the role of the photoreceptor. Some batteries adopt LiMno as the positive pole material of the battery of green laser pointer .
Laser together in the photoreceptor cells of protein coagulation caused by the overheating of degeneration is not reversible damage. Once the damage after it will cause permanent blindness of the eye. The laser wavelength, the different extent of the role of the eye, its consequences are also different. The far-infrared laser (wavelength longer than 1900nm) damage to the eye to the cornea, it is because this type of wavelength of the laser is almost entirely absorbed by the cornea, corneal damage are the most important, the main cause of keratitis and conjunctivitis. UV laser (wavelength 315-400nm), is almost entirely absorbed by the eye's lens while COSCO (wavelength shorter than 315nm) to corneal absorption, which can be caused by the lens and corneal opacities. And the exact height of battery of green laser pointer is 65±2.0mm.
Has a strong drawing, MAP READING ABILITY, master solidwork, office and other related computer software applications. Has a strong English reading and writing ability. Laser Power Supply Engineer: Bachelor degree or above, electricity or electronics related professionals. More than three years the field of switching power supply design experience, familiar with a variety of ac-dc, dc-dc circuit structure and principles, with a solid mathematical basis of analog circuits, analog circuit has a profound understanding of a profound understanding of the switching power supply, for switching power supply installation certification and emc standards requirements. Able to finish the single-arm, multi-output power supply design or module power supply design. Independently of the switching power supply design and production of the whole process, from project identification, circuit design, component selection, circuit testing and debugging, pcb board design, and electrical performance testing. The battery is especially used by some usa green laser pointer of the specific specification.
Familiar with the switching power supply performance requirements and test requirements, writing of new products related documents. Id power supply design experience staff priority. Laser Safety. The potential hazards of the laser. The laser beam hazards. Laser to produce high strength and high directionality of the beam. If directed, reflected or focused upon an object, the laser will be partially absorbed, will make the surface or the internal temperature rises, causing local changes or deformation of the materials. The body of the laser output is vulnerable, exposed in front of the laser can cause eye and skin injury in a particular environment. The application of laser in medicine has been expanded, and applications are expanding, such as not pay attention to the safety of the laser in the application process, it may cause accidental injury. Actually, Li of battery of green laser pointer is a kind of metallic element.
Laser damage to the eyes. The role of the wavelength of the eye. Laser damage, the most serious damage to the body in the eye. Wavelength of about 400nm (violet) to 1400nm (near infrared) laser, the absorption rate of the refractive medium low transmission rate, and the ability to focus (ie, concentrating power) of the refractive media. High intensity visible or near infrared light enters the eye through the refractive media of the human eye, the accumulation of light in the retina. The laser energy density and power density in the retina to several thousand or even several times, a lot of light on the retina at the moment poly Retinal photoreceptor cell layer and temperature increases, as well as coagulation necrosis of photoreceptor cells but lost the role of the photoreceptor. Some batteries adopt LiMno as the positive pole material of the battery of green laser pointer .
Laser together in the photoreceptor cells of protein coagulation caused by the overheating of degeneration is not reversible damage. Once the damage after it will cause permanent blindness of the eye. The laser wavelength, the different extent of the role of the eye, its consequences are also different. The far-infrared laser (wavelength longer than 1900nm) damage to the eye to the cornea, it is because this type of wavelength of the laser is almost entirely absorbed by the cornea, corneal damage are the most important, the main cause of keratitis and conjunctivitis. UV laser (wavelength 315-400nm), is almost entirely absorbed by the eye's lens while COSCO (wavelength shorter than 315nm) to corneal absorption, which can be caused by the lens and corneal opacities. And the exact height of battery of green laser pointer is 65±2.0mm.
This process can be called the visual inspection of green laser pointer
The basic requirements: undergraduate graduation, more than two years work experience; hard work and positive attitude, humble and sincere happy to communicate with a strong ability to learn, willing to learn new knowledge and skills. Suzhou Celestica Laser Equipment Co., Ltd. is widely condenser, machines, electricity, operators and other high-tech field of high-quality human aspect. For many years from the cause of the art laser processing equipment R & D, manufacturing and services. The company is located in a paradise on earth the reputation of the garden city - Suzhou, relying on a strong industrial base and a network of resources, domestic famous universities and institutes, experts are widely employed for technical guidance, follow the ISO9001: 2000 quality management system, home buyers six thousand square feet, five hundred sets of the static structure of complete sets of production laser equipment capacity. Here will introduce a special type of green star green laser pointer with keychain.
For the domestic world "Celestica laser ambition to let people make good use of the vision of affordable high-tech laser processing equipment, with international scientific and technological development, trying to make a wide range of enterprises to use the word" precision, high stability cost-effective laser equipment, to improve the manufacturing process of the people. "Quality, service-oriented" Celestica laser is carefully crafted, careful care of each Celestica products, carrying more than a thousand merchants to Build "integrity Celestica. This company Huicun the production line: the lamp-pumped YAG high-speed laser marking machine, diode side pump YAG high-speed laser marking machine, high-speed semiconductor end pump YAG laser marking machine, personalized crystal engraving machine, CO2 high-speed laser engraving machine, YAG laser welding (cutting) machine, YAG laser scribing machine, flat CO2 laser cutting machine. This characteristic of usa green laser pointer makes this kind of green laser pointer a favorite.
The company laser products involved in the laser marking machine, laser cutting machines, laser welding machine, laser engraving machine, four series of more than 20 kinds of models. Professional production equipment fiber laser marking machine, end-pumped laser marking machine, diode-pumped YAG laser marking machine, laser wafer dicing machine, buttons laser engraving machine, laser LCD repair meter, three-dimensional crystal engraving machine, CO2 laser engraving (carving) machine, multi-function laser welding machine, sheet metal laser cutting machine, laser flying marking machine, laser mold fill welding machine, fiber laser cutting machine, laser engraving machines, solar cells laser in addition to side of machine. IC proprietary laser marking machines, CO2 series laser cutting machine. After accomplishment of producing green laser pointer , the quality inspection of the laser pointer should be timely and strictly implemented by the specific quality inspector.
The device is suitable to cover hardware products, model making, leather clothing, advertising, craft gifts, printing and packaging, medical devices, eyeglasses and clocks, electronics, solar energy and other industries. The diversity of products to meet the needs of different customers. "Quality-oriented and service-oriented, priority, pragmatic and innovative" business philosophy is borne in mind that each Celestica employees. Filled with the spirit of teamwork within the company, always keeping in mind the slogan "I make contributions to Celestica Celestica In my glory". The idea of employing their talent to make the best use, to encourage the majority of employees to actively participate in the company's development. Vision: We are deeply negative to a wide range of enterprises can spend the high-precision, high stability, high cost of laser equipment. This process can be called the visual inspection of green laser pointer .
Enhance people's manufacturing processes, ambitious the Celestica laser is carefully crafted, and attentive care each Celestica products, dedicated to shaping the "integrity Celestica" perfect image. Our goal: for the domestic world. Laser cause for the subject, looking forward to the international advanced technology to create a world-class products and services brand, creating the world's leading laser applications. Install electronic debugging member of five tertiary and higher education, mechatronics or electronics-related professional, 2 years relevant work experience, skilled use of an oscilloscope, signal generation instrument and other related testing equipment, are familiar with and mastery of the electric iron hand soldering and other related operational processes. and inspection. Whether the surface treatment of green laser pointer is done well or not can be also checked.
For the domestic world "Celestica laser ambition to let people make good use of the vision of affordable high-tech laser processing equipment, with international scientific and technological development, trying to make a wide range of enterprises to use the word" precision, high stability cost-effective laser equipment, to improve the manufacturing process of the people. "Quality, service-oriented" Celestica laser is carefully crafted, careful care of each Celestica products, carrying more than a thousand merchants to Build "integrity Celestica. This company Huicun the production line: the lamp-pumped YAG high-speed laser marking machine, diode side pump YAG high-speed laser marking machine, high-speed semiconductor end pump YAG laser marking machine, personalized crystal engraving machine, CO2 high-speed laser engraving machine, YAG laser welding (cutting) machine, YAG laser scribing machine, flat CO2 laser cutting machine. This characteristic of usa green laser pointer makes this kind of green laser pointer a favorite.
The company laser products involved in the laser marking machine, laser cutting machines, laser welding machine, laser engraving machine, four series of more than 20 kinds of models. Professional production equipment fiber laser marking machine, end-pumped laser marking machine, diode-pumped YAG laser marking machine, laser wafer dicing machine, buttons laser engraving machine, laser LCD repair meter, three-dimensional crystal engraving machine, CO2 laser engraving (carving) machine, multi-function laser welding machine, sheet metal laser cutting machine, laser flying marking machine, laser mold fill welding machine, fiber laser cutting machine, laser engraving machines, solar cells laser in addition to side of machine. IC proprietary laser marking machines, CO2 series laser cutting machine. After accomplishment of producing green laser pointer , the quality inspection of the laser pointer should be timely and strictly implemented by the specific quality inspector.
The device is suitable to cover hardware products, model making, leather clothing, advertising, craft gifts, printing and packaging, medical devices, eyeglasses and clocks, electronics, solar energy and other industries. The diversity of products to meet the needs of different customers. "Quality-oriented and service-oriented, priority, pragmatic and innovative" business philosophy is borne in mind that each Celestica employees. Filled with the spirit of teamwork within the company, always keeping in mind the slogan "I make contributions to Celestica Celestica In my glory". The idea of employing their talent to make the best use, to encourage the majority of employees to actively participate in the company's development. Vision: We are deeply negative to a wide range of enterprises can spend the high-precision, high stability, high cost of laser equipment. This process can be called the visual inspection of green laser pointer .
Enhance people's manufacturing processes, ambitious the Celestica laser is carefully crafted, and attentive care each Celestica products, dedicated to shaping the "integrity Celestica" perfect image. Our goal: for the domestic world. Laser cause for the subject, looking forward to the international advanced technology to create a world-class products and services brand, creating the world's leading laser applications. Install electronic debugging member of five tertiary and higher education, mechatronics or electronics-related professional, 2 years relevant work experience, skilled use of an oscilloscope, signal generation instrument and other related testing equipment, are familiar with and mastery of the electric iron hand soldering and other related operational processes. and inspection. Whether the surface treatment of green laser pointer is done well or not can be also checked.
Monday, February 27, 2012
The appearance color of usa green laser pointer can be customized as red
This stage should have a maximum rate of polishing the rough polishing, the formation of deformation layer is a secondary consideration, but should also be as small as possible. Followed by fine polishing (also known as the final cast), and its purpose is to remove the rough polishing deformation layer, so that the polishing damage minimize. In the past, rough polishing, commonly used abrasive particle size of 10 ~~ 20? M of α-Al2O3, Cr2O3, Fe2O3, add water, dubbed the suspension. At present, the synthetic diamond abrasives has been gradually replaced by aluminum and other abrasive because it has the following advantages: 1) alumina compared to the much smaller particle size diamond abrasive, the polishing rate is much greater. green laser pointer has more than three functions.
For example, 4 ~ 8? M diamond grit polishing rate of 10 ~ 20? M alumina or silicon carbide polishing rate is similar; 2) the surface deformation layer shallow; 3) polishing the best quality. Typically, using a diamond paste abrasive polishing rate than suspension. When the price of the diamond abrasive polishing rate, cutting the ability to maintain long time, so its consumption, as long as the economy and reasonable to select the speed of the polishing machine (mechanical polishing for 250 ~ 300r / min, automatic polishing should be as 150r/min), can give full play to its advantages. Rough polishing using diamond paste, generally use the particle size of 3.5? M abrasive. Battery model of this kind of green laser pointer is CR123A.
Then use the particle size of 1? M abrasive, softer material to use granularity to 0.5? M abrasive in order to obtain the best results. Although the principle has been more mature for polished and rough polishing, but for fine polishing, but also requires the operator to have a higher skills. Common fine polishing abrasive for MgO and γ-Al2O3, which MgO polished best, but the polishing efficiency is low, and difficult to grasp; γ-Al2O3 polishing rate, and easy to learn. Microcomputers in recent years on the polishing machine configuration, so that the automation of the polishing process, polishing machine can work in accordance with the provisions of the parameters (such as speed, pressure, the choice of lubricant, abrasive spray frequency, etc.), these parameters can also be with The time change. For some metallographic specimens. The appearance color of usa green laser pointer can be customized as red.
As long as the optimal sample parameters are established, the importance of sample preparation efficiency of 15 fruit well, efficiency is greatly improved. However, this sample preparation equipment and can not completely replace the staff of metallographic technique, it can only work in accordance with the procedures of pre-formulated. 5) erosion of the specimen mechanical polishing, under the microscope, only to see the light grinding and inclusion. Microscopic analysis of the sample organization must also make the specimens after corrosion. Commonly used method of corrosion chemical etching and electrolytic etching method (observation of the metallographic sample of non-metallic inclusions, the direct optical method does not require any corrosion). Figure 5 when the sample etched in pure metal crystallization to each of the various grain is not the same chemical properties anisotropy. The body of this kind of green laser pointer is firm enough.
Some grain corroded faster erosion on the deep; some grain subject to eclipse the slow erosion of shallow. The light from the grain reflected the same results under a microscope, the degree of lightness or darkness of each grain will not. Alloy that often exist in the composition of two or more objects. Due to their different physical and chemical properties, and some erosion easy, some difficult to dip the light reflection of Figure 5 grain and grain boundary corrosion; and their electrochemical potential to form a micro-battery, the anode composition was dissolved cathode composition is protected. Irregular arrangement of atoms on the grain boundaries, internal energy larger, there are some mixed susceptible to erosion than inside the grains. The size of green laser pointer can be customized.
For example, 4 ~ 8? M diamond grit polishing rate of 10 ~ 20? M alumina or silicon carbide polishing rate is similar; 2) the surface deformation layer shallow; 3) polishing the best quality. Typically, using a diamond paste abrasive polishing rate than suspension. When the price of the diamond abrasive polishing rate, cutting the ability to maintain long time, so its consumption, as long as the economy and reasonable to select the speed of the polishing machine (mechanical polishing for 250 ~ 300r / min, automatic polishing should be as 150r/min), can give full play to its advantages. Rough polishing using diamond paste, generally use the particle size of 3.5? M abrasive. Battery model of this kind of green laser pointer is CR123A.
Then use the particle size of 1? M abrasive, softer material to use granularity to 0.5? M abrasive in order to obtain the best results. Although the principle has been more mature for polished and rough polishing, but for fine polishing, but also requires the operator to have a higher skills. Common fine polishing abrasive for MgO and γ-Al2O3, which MgO polished best, but the polishing efficiency is low, and difficult to grasp; γ-Al2O3 polishing rate, and easy to learn. Microcomputers in recent years on the polishing machine configuration, so that the automation of the polishing process, polishing machine can work in accordance with the provisions of the parameters (such as speed, pressure, the choice of lubricant, abrasive spray frequency, etc.), these parameters can also be with The time change. For some metallographic specimens. The appearance color of usa green laser pointer can be customized as red.
As long as the optimal sample parameters are established, the importance of sample preparation efficiency of 15 fruit well, efficiency is greatly improved. However, this sample preparation equipment and can not completely replace the staff of metallographic technique, it can only work in accordance with the procedures of pre-formulated. 5) erosion of the specimen mechanical polishing, under the microscope, only to see the light grinding and inclusion. Microscopic analysis of the sample organization must also make the specimens after corrosion. Commonly used method of corrosion chemical etching and electrolytic etching method (observation of the metallographic sample of non-metallic inclusions, the direct optical method does not require any corrosion). Figure 5 when the sample etched in pure metal crystallization to each of the various grain is not the same chemical properties anisotropy. The body of this kind of green laser pointer is firm enough.
Some grain corroded faster erosion on the deep; some grain subject to eclipse the slow erosion of shallow. The light from the grain reflected the same results under a microscope, the degree of lightness or darkness of each grain will not. Alloy that often exist in the composition of two or more objects. Due to their different physical and chemical properties, and some erosion easy, some difficult to dip the light reflection of Figure 5 grain and grain boundary corrosion; and their electrochemical potential to form a micro-battery, the anode composition was dissolved cathode composition is protected. Irregular arrangement of atoms on the grain boundaries, internal energy larger, there are some mixed susceptible to erosion than inside the grains. The size of green laser pointer can be customized.
The power of usa green laser pointer is 5mw-10mw
Steel materials are the most commonly used etchant for 3 to 4% nitric acid alcohol solution or 4% picric acid alcohol solution. 16 test results and test results and analysis of a test the results of laser alloying with laser parameters: the use of different laser parameters like photo 2 1) 45 steel by laser alloying of gold on the copper after the laser beam power ) laser beam power of 2) Silicon Image Analysis). The laser crystal material subdivided market research report. The laser crystal material subdivided market research report. Laser crystal material. Chapter I: Background laser crystals is an important one of the Photonic and Electronic Materials, photonics technology, laser technology important material basis for their level of development and is closely related to the development of laser technology. The development and application of the laser crystal is a measure of one of the important indicator of a national high-tech development. Here will introduce the fabulous function of green laser pointer .
With the development of photonics technology and the increasingly widespread application of the laser crystal material also raised higher, the updated requirements. Crystal material can be used for laser frequency conversion, expansion of the laser wavelength; used to modulate the laser intensity, phase; laser holographic storage signal, eliminating the wavefront domain becomes self-pumped phase conjugation. Therefore, the nonlinear optical crystal is the indispensable key materials in high-tech and modern military technology, the developed countries are on the priority development location, and included in the respective high-tech development plan as an important strategic measure to to give a high degree of attention and support. The technological level of the laser crystal, device and application of the entire field of view, developed countries such as the United States, Britain, living in the world. The accessory of green laser pointer is one piece of AAA alkaline battery.
From the first principle, exploration of new materials, device development, they have made an important contribution. In the production of the laser crystal materials, Japan, China, and the former Soviet Union countries such as Russia, Ukraine, Lithuania, occupies an important position, and the United States and some European countries are mainly focused in the nonlinear crystal devices and equipment manufacturing . The laser crystal device is the core component of the trichromatic laser products, and higher labor value-added. Our country is an international leader in the research and development, and at the same time with independent intellectual property rights. It is a rare opportunity involved in the product areas in China. The financial crisis is over almost the past two years, but its impact has not gone. The power of usa green laser pointer is 5mw-10mw.
Countries around the world looking for countermeasures to completely resolve this issue. - Laser crystal material as a new industry segments in the complex case, also caused a lot of adverse effects. Specific background is as follows: 1: economic policy under the premise of monetary easing, the laser crystal materials demand has decreased. 2: a large number of new production projects, has been facing new competition. 3: The appreciation of the RMB, the Chinese laser crystal material manufacturers export facing a huge dilemma. 4: Raw materials prices substantially, the impact to the production of corporate purchasing. We will in the following pages on the above for a detailed explanation and analysis, and to find a solution suitable for enterprise development. green laser pointer can make their communication more effective and more convenient.
With the development of photonics technology and the increasingly widespread application of the laser crystal material also raised higher, the updated requirements. Crystal material can be used for laser frequency conversion, expansion of the laser wavelength; used to modulate the laser intensity, phase; laser holographic storage signal, eliminating the wavefront domain becomes self-pumped phase conjugation. Therefore, the nonlinear optical crystal is the indispensable key materials in high-tech and modern military technology, the developed countries are on the priority development location, and included in the respective high-tech development plan as an important strategic measure to to give a high degree of attention and support. The technological level of the laser crystal, device and application of the entire field of view, developed countries such as the United States, Britain, living in the world. The accessory of green laser pointer is one piece of AAA alkaline battery.
From the first principle, exploration of new materials, device development, they have made an important contribution. In the production of the laser crystal materials, Japan, China, and the former Soviet Union countries such as Russia, Ukraine, Lithuania, occupies an important position, and the United States and some European countries are mainly focused in the nonlinear crystal devices and equipment manufacturing . The laser crystal device is the core component of the trichromatic laser products, and higher labor value-added. Our country is an international leader in the research and development, and at the same time with independent intellectual property rights. It is a rare opportunity involved in the product areas in China. The financial crisis is over almost the past two years, but its impact has not gone. The power of usa green laser pointer is 5mw-10mw.
Countries around the world looking for countermeasures to completely resolve this issue. - Laser crystal material as a new industry segments in the complex case, also caused a lot of adverse effects. Specific background is as follows: 1: economic policy under the premise of monetary easing, the laser crystal materials demand has decreased. 2: a large number of new production projects, has been facing new competition. 3: The appreciation of the RMB, the Chinese laser crystal material manufacturers export facing a huge dilemma. 4: Raw materials prices substantially, the impact to the production of corporate purchasing. We will in the following pages on the above for a detailed explanation and analysis, and to find a solution suitable for enterprise development. green laser pointer can make their communication more effective and more convenient.
The appearance of usa green laser pointer can be personalized
Chapter 2: The purpose of the research purpose of our study is for operators and investors to provide basis for decision making, which is related companies to provide appropriate strategic planning. Laser crystal materials enterprise development to provide direction and guidance in the increasingly fierce competition, how to maintain the existing advantages and seize the market changes. Performance is as follows: Figure 1: Objective: the definition of industry segments, an overview description of the main products and industrial chain Chapter III: the definition of industry segments, industry segments is the process in accordance with the method of division business areas, and subdivision on the basis of industry analysis further applied to business areas, which provide the basis for the formulation of business strategy. green laser pointer will work without installing any drive.
Upstream of the laser crystal materials and rare earth industry and chemical industry association; downstream connection with the military industry, photoelectron industry, Laser industry, and medical device industries, is a very important part of these four sectors. Laser crystal material as an essential raw material of a variety of lasers, the quality of its technical advantages, which directly determines the laser quality is good or bad. Laser crystal materials east Chun Co., Ltd. is a brief introduction. Tung Chun Co., Ltd. produces the laser crystal materials including Nd: YAG, (Nd, Ce): YAG, Cr4 +: YAG, Er: YAG, Yb: YAG, Nd: YAP, Er: Glass, KTP. Nd: YAG laser rod. green laser pointer is the best assistants for you to deliver a speech or hold a conference.
Also known as neodymium-doped yttrium aluminum garnet (Nd: YAG) is still integrated nature of the best solid-state laser materials. The company produces "non-core" scattering "and" no fault "Nd: YAG laser rod has won national quality appraisal first. Nd, Ce): series of YAG laser rods: also known as neodymium-doped cerium doped yttrium aluminum garnet (Nd, Ce): YAG laser rods and high efficiency, low threshold, UV radiation, the repetition frequency characteristics, the repetition frequency of air-cooled (or natural cooling) lasers the best laser material. The company produces the double-doped rods have been awarded the National Science and Technology Progress Award, the leading domestic level. Cr4 +: YAG crystal is used as the initiative and passive Q-switch. Cr: YAG, of LN crystals. Cr: YAG or the introduction of the growth of the Russian equipment. The appearance of usa green laser pointer can be personalized.
The company produces the Cr: YAG, with high stability and reliability, long life, resistance to injury, is an ideal passive Q-switch materials. Laser crystal materials industry chain, as shown below: Figure 2: laser crystal materials market segments industrial chain Chapter: Chapter 4: macro-economic development and industry development of China's economy after decades-long rapid development of various industries has made considerable progress. Into the 21st century China's GNP annual growth rate of more than 10% for three consecutive years. 2008 along with the international financial crisis, China's economic development also will be cool, but still maintain more than 8%. The design of green laser pointer is good enough.
Into GDP in China in the first half of 2010 surpassed Japan to become the second largest economy in the world. As shown below: Figure 3: the macroeconomic environment, with the domestic economy increasingly to the laser crystal materials market is also showing a thriving situation. Embodied in the 1: increase in the number of firms. As shown below: Figure 4: The number of production enterprises and the growth rate of production increased from less than 400 in 2003 to more than 520 in 2009, before the outbreak of the financial crisis by the increase in foreign demand and the market to factors that stimulate the production enterprises to increase the amplitude is relatively large, basically a year to maintain more than 5%, in 2009 the number of firms is basically no change. Corporate assets over the same period to ensure the holding increase, gradually increasing its proportion in the national economy. The USB of green laser pointer has the strong function.
Upstream of the laser crystal materials and rare earth industry and chemical industry association; downstream connection with the military industry, photoelectron industry, Laser industry, and medical device industries, is a very important part of these four sectors. Laser crystal material as an essential raw material of a variety of lasers, the quality of its technical advantages, which directly determines the laser quality is good or bad. Laser crystal materials east Chun Co., Ltd. is a brief introduction. Tung Chun Co., Ltd. produces the laser crystal materials including Nd: YAG, (Nd, Ce): YAG, Cr4 +: YAG, Er: YAG, Yb: YAG, Nd: YAP, Er: Glass, KTP. Nd: YAG laser rod. green laser pointer is the best assistants for you to deliver a speech or hold a conference.
Also known as neodymium-doped yttrium aluminum garnet (Nd: YAG) is still integrated nature of the best solid-state laser materials. The company produces "non-core" scattering "and" no fault "Nd: YAG laser rod has won national quality appraisal first. Nd, Ce): series of YAG laser rods: also known as neodymium-doped cerium doped yttrium aluminum garnet (Nd, Ce): YAG laser rods and high efficiency, low threshold, UV radiation, the repetition frequency characteristics, the repetition frequency of air-cooled (or natural cooling) lasers the best laser material. The company produces the double-doped rods have been awarded the National Science and Technology Progress Award, the leading domestic level. Cr4 +: YAG crystal is used as the initiative and passive Q-switch. Cr: YAG, of LN crystals. Cr: YAG or the introduction of the growth of the Russian equipment. The appearance of usa green laser pointer can be personalized.
The company produces the Cr: YAG, with high stability and reliability, long life, resistance to injury, is an ideal passive Q-switch materials. Laser crystal materials industry chain, as shown below: Figure 2: laser crystal materials market segments industrial chain Chapter: Chapter 4: macro-economic development and industry development of China's economy after decades-long rapid development of various industries has made considerable progress. Into the 21st century China's GNP annual growth rate of more than 10% for three consecutive years. 2008 along with the international financial crisis, China's economic development also will be cool, but still maintain more than 8%. The design of green laser pointer is good enough.
Into GDP in China in the first half of 2010 surpassed Japan to become the second largest economy in the world. As shown below: Figure 3: the macroeconomic environment, with the domestic economy increasingly to the laser crystal materials market is also showing a thriving situation. Embodied in the 1: increase in the number of firms. As shown below: Figure 4: The number of production enterprises and the growth rate of production increased from less than 400 in 2003 to more than 520 in 2009, before the outbreak of the financial crisis by the increase in foreign demand and the market to factors that stimulate the production enterprises to increase the amplitude is relatively large, basically a year to maintain more than 5%, in 2009 the number of firms is basically no change. Corporate assets over the same period to ensure the holding increase, gradually increasing its proportion in the national economy. The USB of green laser pointer has the strong function.
Sunday, February 26, 2012
the detector of green laser pointer intelligent system and software
Batch sales of green laser pointer are popular. Note: Be prepared to clean the guide - dry cotton cloth, lubricating oil. Engraving machine into linear guide rail, roller guide, among the X direction in the YM series with a linear guide, Y direction with roller guides. Clean linear guide: First, the laser head moves to the right (or left), shown above to find the linear guide, with a dry cotton cloth until shiny clean, plus a little oil (sewing machine oil can be used Do not use oil), the laser head and slowly push around a few times, so that lubricant can be evenly distributed. The cleaning roller guide: the beam moves to the inside, turn the machine on both sides of the cover, as shown above to find the rail, with a dry cotton cloth to both sides of the rail and wheel contact areas to wipe clean, then move the beam, the remaining clean. Construction of new green laser pointer factory building is in the process.
Motor system at work for some time, movement of the screw connection, will have a loose coupling will affect the smooth movement of machinery, so to observe the operation of the machine there is no abnormal sound transmission components or anomalies, identify problems in time Rugged and maintenance. While the machine over a period of time should be solid with the tools one by one screw. The first firm to be used in the device after a month or so. Laser engraving machine optical system is reflected by the mirror and focusing mirror together to complete the focus, the focusing mirror in the optical path does not exist in the offset, but three mirrors are fixed by the mechanical part, offset the possibility of more large, although not normally shift, but recommends that users be sure to check before each work light path is normal. The customer wanna know more information about FAQ of usa green laser pointer .
Protective equipment, laser cutting machine is a typical laser safety goggles, because the laser to prevent damage to the human eye goggles, protective principle can be divided according to their reflection, absorption, diffraction and other types of composite type and, of course, they will laser cutting machine according to the laser radiation wavelength filter protection to the human body to protect the laser laser cutting machine, which is more safe and convenient on the market for laser cutting machine protection equipment. Human health if they have sufficient degree of laser cutting machine for a little radiation can defend itself. Therefore, laser cutting machine operators should pay attention to appropriate, eat some carrots, bean sprouts, tomatoes, meat, animal liver, rich in vitamins A, C, and protein foods, often drink green tea, and so on. Because these foods can help people better protect the eyes, allowing the body to radiation in the laser cutting machine conditions, better protection of the human body. The company should make a list of FAQ of green laser pointer .
Laser cutting machines so widely used, is simply the object to be cut with a laser slightly! There are many materials can be cut, Golden Laser cutting machines can be acrylic, wood, cloth, leather, metal cutting, etc., according to the size of the power format can be used in different industries. Cut fabric can be used in clothing, carpets, industrial fabrics, etc., acrylic cutting machine can be used in acrylic crafts, etc., can be used for cutting wood model making, metal cutting can replace the original cutting to do all kinds of metal products. In the year 2000, domestic production of laser processing based clothing company is not too much. But now, laser equipment manufacturers mushroomed to develop, the current size of the domestic enterprise has reached as many as dozens of home. Laser technology in the clothing industry the application of our garment processing and enhance the competitiveness of the clothing brand has played a role in fueling. And then restart the detector of green laser pointer intelligent system and software.
Motor system at work for some time, movement of the screw connection, will have a loose coupling will affect the smooth movement of machinery, so to observe the operation of the machine there is no abnormal sound transmission components or anomalies, identify problems in time Rugged and maintenance. While the machine over a period of time should be solid with the tools one by one screw. The first firm to be used in the device after a month or so. Laser engraving machine optical system is reflected by the mirror and focusing mirror together to complete the focus, the focusing mirror in the optical path does not exist in the offset, but three mirrors are fixed by the mechanical part, offset the possibility of more large, although not normally shift, but recommends that users be sure to check before each work light path is normal. The customer wanna know more information about FAQ of usa green laser pointer .
Protective equipment, laser cutting machine is a typical laser safety goggles, because the laser to prevent damage to the human eye goggles, protective principle can be divided according to their reflection, absorption, diffraction and other types of composite type and, of course, they will laser cutting machine according to the laser radiation wavelength filter protection to the human body to protect the laser laser cutting machine, which is more safe and convenient on the market for laser cutting machine protection equipment. Human health if they have sufficient degree of laser cutting machine for a little radiation can defend itself. Therefore, laser cutting machine operators should pay attention to appropriate, eat some carrots, bean sprouts, tomatoes, meat, animal liver, rich in vitamins A, C, and protein foods, often drink green tea, and so on. Because these foods can help people better protect the eyes, allowing the body to radiation in the laser cutting machine conditions, better protection of the human body. The company should make a list of FAQ of green laser pointer .
Laser cutting machines so widely used, is simply the object to be cut with a laser slightly! There are many materials can be cut, Golden Laser cutting machines can be acrylic, wood, cloth, leather, metal cutting, etc., according to the size of the power format can be used in different industries. Cut fabric can be used in clothing, carpets, industrial fabrics, etc., acrylic cutting machine can be used in acrylic crafts, etc., can be used for cutting wood model making, metal cutting can replace the original cutting to do all kinds of metal products. In the year 2000, domestic production of laser processing based clothing company is not too much. But now, laser equipment manufacturers mushroomed to develop, the current size of the domestic enterprise has reached as many as dozens of home. Laser technology in the clothing industry the application of our garment processing and enhance the competitiveness of the clothing brand has played a role in fueling. And then restart the detector of green laser pointer intelligent system and software.
The incoming test of green laser pointer has to be done
The incoming test of green laser pointer has to be done. Laser cutting laser cutting technology is widely used in metal and non-metallic materials, processing, can significantly reduce processing time, reduce processing costs, improve quality of the workpiece. Laser cutting technology, there are two: one is the pulsed laser for metal materials. The second is a continuous laser for non-metallic materials, which is an important application of laser cutting technology field. The laser has become one of modern fantasy pursuit of "cut iron drunk" and "sword." Focusing mirror is focused on the CO2 laser beam melts the material surface, while with the laser beam with the compressed gas is blown away by the molten material and the laser beam and the material for the relative motion along a certain path, to form a certain shape the kerf. The process engineer has submitted the suggestion of the workers about the technical problems of green laser pointer to Chief Engineer.
Since the 1970s from a CO2 laser and CNC technology with the continuous improvement and development, industrial sheet metal cutting has become an advanced processing methods. In the fifties and sixties as a cutting board cut the main method: For the use of oxyacetylene flame cutting plate; for the use of scissors under the bed sheet material, forming large quantities of complex parts using stamping, cutting a single piece of vibrating. Seventies, in order to improve and enhance the quality of flame cutting incision, but also to promote the ethylene oxide precision flame cutting and plasma cutting. In order to reduce the manufacturing cycle of large stamping dies, but also the development of CNC and EDM technology nibbling. Material under a variety of cutting methods has its shortcomings, in industrial production in a certain scope. Laser cutting machine equipment, tens of thousands or even tens of ten thousand pieces, so care must be taken of them in operation, and usually pay attention to maintenance and repair in order to increase equipment life, cost savings, and create greater benefits. The factory has got more market share recently for the low price and high quality of green laser pointer .
Recommendation: weekly cleaning and replacement of the circulating water tank once. Note: the machine before work to ensure that the laser tube filled with circulating water. Circulating water temperature directly affects the water quality and the service life of laser tube, it is recommended to use purified water, and temperature controlled at 35 ℃ or less. If more than 35 ℃ in need of replacement cycle of water, or add ice water down to the water, (recommended user to select the cooling machine, or use two tanks). Clean the water tank: First turn off and unplug the water saliva control, so that the laser tube of water flow automatically into the tank, open tank, remove the pump to remove water pump on the dirt. Clean the tank, replace the vicious cycle of water, the pump reverts back to the tank, the pipes will connect into the pump inlet, collated the joints. Separate the pump power, and run 2-3 minutes (the laser tube filled with recycled water). The use of fans for a long time, will accumulate a lot of fans inside the solid dust, so fans have a great noise, not conducive to the discharge and odor. The customer has the stricter requirements for quality of usa green laser pointer .
When the exhaust fan suction less than poor, first turn off the power, the fan on the pipe and out into the air duct removed, remove the dust inside, and then the fan upside down, and pull the fan moving inside, clean up , then the fan installed. Engraving machine has three mirrors and a focusing mirror (mirror 1 launch at the exit of the laser tube, which is the upper left corner of the machine, No. 2 in the beam of the left mirror, mirror 3, the fixed part in the laser head the top of the focusing mirror in the laser tube in the lower adjustable), the laser is reflected through these lenses, focused emitted from the laser head. Lens easily coated with dust or other contaminants, resulting in the loss or the laser lens is damaged, 1 and 2, the lens cleaning Needless to remove, simply wipe moistened with lens cleaning fluid lens paper carefully along the central to the edge of the rotary cleaning. 3 lenses and focusing mirrors need to remove from the frame, using the same method to wipe, wipe the back can be installed after the AS. Chief Engineer hosted the meeting during which some technical details of green laser pointer had been determined.
Since the 1970s from a CO2 laser and CNC technology with the continuous improvement and development, industrial sheet metal cutting has become an advanced processing methods. In the fifties and sixties as a cutting board cut the main method: For the use of oxyacetylene flame cutting plate; for the use of scissors under the bed sheet material, forming large quantities of complex parts using stamping, cutting a single piece of vibrating. Seventies, in order to improve and enhance the quality of flame cutting incision, but also to promote the ethylene oxide precision flame cutting and plasma cutting. In order to reduce the manufacturing cycle of large stamping dies, but also the development of CNC and EDM technology nibbling. Material under a variety of cutting methods has its shortcomings, in industrial production in a certain scope. Laser cutting machine equipment, tens of thousands or even tens of ten thousand pieces, so care must be taken of them in operation, and usually pay attention to maintenance and repair in order to increase equipment life, cost savings, and create greater benefits. The factory has got more market share recently for the low price and high quality of green laser pointer .
Recommendation: weekly cleaning and replacement of the circulating water tank once. Note: the machine before work to ensure that the laser tube filled with circulating water. Circulating water temperature directly affects the water quality and the service life of laser tube, it is recommended to use purified water, and temperature controlled at 35 ℃ or less. If more than 35 ℃ in need of replacement cycle of water, or add ice water down to the water, (recommended user to select the cooling machine, or use two tanks). Clean the water tank: First turn off and unplug the water saliva control, so that the laser tube of water flow automatically into the tank, open tank, remove the pump to remove water pump on the dirt. Clean the tank, replace the vicious cycle of water, the pump reverts back to the tank, the pipes will connect into the pump inlet, collated the joints. Separate the pump power, and run 2-3 minutes (the laser tube filled with recycled water). The use of fans for a long time, will accumulate a lot of fans inside the solid dust, so fans have a great noise, not conducive to the discharge and odor. The customer has the stricter requirements for quality of usa green laser pointer .
When the exhaust fan suction less than poor, first turn off the power, the fan on the pipe and out into the air duct removed, remove the dust inside, and then the fan upside down, and pull the fan moving inside, clean up , then the fan installed. Engraving machine has three mirrors and a focusing mirror (mirror 1 launch at the exit of the laser tube, which is the upper left corner of the machine, No. 2 in the beam of the left mirror, mirror 3, the fixed part in the laser head the top of the focusing mirror in the laser tube in the lower adjustable), the laser is reflected through these lenses, focused emitted from the laser head. Lens easily coated with dust or other contaminants, resulting in the loss or the laser lens is damaged, 1 and 2, the lens cleaning Needless to remove, simply wipe moistened with lens cleaning fluid lens paper carefully along the central to the edge of the rotary cleaning. 3 lenses and focusing mirrors need to remove from the frame, using the same method to wipe, wipe the back can be installed after the AS. Chief Engineer hosted the meeting during which some technical details of green laser pointer had been determined.
The green laser pointer has a time
Strategic laser weapons strategic laser weapons to attack thousands of miles away ICBMs; to attack satellites in space and communications satellites. For example, in November 1975, two U.S. surveillance satellites in missile silos flew over Siberia when he was the former Soviet Union's "anti-satellite" hit the ground-based laser weapons, and become "blind." Therefore, the high-energy laser weapons base is the ideal weapon to win one of space superiority, military power is intense costly competition at the root cause. The battery electric quantity indication helps to judge if it needs to change the battery of green laser pointer . According to foreign periodicals revealed that since the 1970s, many United States and Russia are respectively the name of dozens of anti-satellite laser weapons test. Currently, the anti-missile laser weapon developed strategic types of chemical lasers, excimer lasers, free electron lasers and laser radiation transfer. For example: free-electron laser with output power, beam quality, high efficiency, tunable range and so on. However, the free-electron laser in size, suitable only for installation on the ground, ground-based laser weapons for use. The green laser pointer has a time. Operations, the strong laser beam shines at the first high-orbit space interrupted mirror. Interrupt mirror reflection to the laser beam in a low-orbit operations mirror, mirror operations targeting the laser beam again, attack. Through this two reflections, set in the free-electron laser weapons on the ground, you can attack from anywhere in the world launch of strategic missiles. High-energy laser weapon is an energy-based laser weapons and space vehicles of the combination. When this laser when cruising along the orbit space, if it is found the other goals can be put into combat. Because of its deployment in space, commanding, wide field of vision is even more powerful. In actual battle, it can be each other's aerial targets lightning attack to destroy the enemy's reconnaissance satellites, early warning satellites, communication satellites, meteorological satellites, and even each other's ICBM can destroy the increase in boost phase.The timer of green laser pointer would vibrate when the set time is up. Edit this paragraph the new Chinese laser research is significant progress in military science editor of the New Development of China's laser segment of military science is of great significance in 2003, according to Chinese Academy of Sciences news news March 14, 2003 through the Institute of Physics, Wang Duo, research and development teams efforts, the first time a large area excimer laser energy for the direct measurement of the effective measuring diameter 100mm, the pyroelectric detector the size of the laser for the world. Following discussions with the China Institute of Atomic Energy and the relevant experts at the national laboratory tests showed that this system in different energy regions (10-20J and 100-200mJ) have reached the desired specifications. According to reports, the laser fusion research is a promising energy development issues, laser controlled thermonuclear fusion reaction is bound to bring a new twist to human life. Laser fusion research in the military also has an important significance.The page-turning function, electronic pointer and usa green laser pointer combine in one, which is simple and practical. In laser fusion experiments, especially in the indirect driven fusion research, in order to produce strong radiation-driven market, people are seeking a high X-ray conversion efficiency, good radiation transport environment, the best of the radiation-driven field. In the course of these studies, the energy of the excimer laser for direct monitoring and research is very important.
Friday, February 24, 2012
This kind of 5 in 1 usa green laser pointer is very powerful
The laser is capable of firing laser devices. In 1954 made the first microwave quantum amplifier, a highly coherent microwave beam .1958 years AL Xiao Luo and CH Townes, the principle of the microwave quantum amplifier to the optical frequency of 3 range, and pointed out that the laser generated 1960 TH Maiman, who made the first ruby laser. A. JIA, who in 1961 made of a helium-neon laser .1962 RN Hall created arsenide gallium semiconductor lasers. the type of laser is more and more divided by the working medium, the laser can be divided into gas lasers, solid-state lasers, semiconductor lasers and dye lasers, four broad categories. green laser pointer needs to be cleaned further.
Recently developed a free-electron laser, the working medium in a periodic magnetic field in the movement of high-speed electron beam, the laser wavelength can cover a broad band from microwave to X-ray. By way of working, continuous, pulsed, Q laser wavelength emitted by a variety of different types of lasers and ultrashort pulse type high-power lasers are usually pulse output has reached thousands of the longest wavelength of the microwave band of 0.7 mm, the shortest wavelength of laser in the far ultraviolet region of 210 angstroms, the X-ray band is also being studied. 2.1.2 The laser works in addition to free-electron laser, the basic working principle of a variety of lasers are the same device an integral part of incentive ( or pumping). Many customers speak highly of this type of green laser pointer .
Working medium and the cavity of the metastable level. Incentive is excited to the excited states of the working medium to absorb foreign energy, to create the conditions to achieve and maintain population inversion. Incentives optical incentive, electrical stimulation, chemical excitation and nuclear incentives working medium has a metastable level by stimulated emission of radiation dominated, in order to achieve optical amplification. photon of the resonator cavity can have a consistent frequency, phase, and the direction of travel, so that the laser has a good orientation of and coherence. 2.1.3 laser material laser material means used to achieve population inversion and produces light by stimulated emission of radiation amplification of the material system, sometimes referred to as the laser gain medium. This kind of 5 in 1 usa green laser pointer is very powerful.
They can be solid (crystal, glass), gas (atomic gas, ionized gas, molecular gas), semiconductor and liquid and other media. The main requirements on the laser material, as much as possible to achieve a more specific level of the particles large degree of population inversion, and that this reversal in the process of the whole laser emission role as effectively as possible maintained; To this end, the working substance has the appropriate level structure and transition properties. excitation (pump) 2.1 .4 excitation (pump) system excitation (pump) system to achieve and maintain the population inversion for the laser material and provide a source of energy bodies or devices according to the different material and laser operating conditions, can take different the incentive of four methods and incentive devices have the following four. Normally, we will provide many options for the customer to select one or several special pattern effect of the laser cap of green laser pointer he or she likes.
Incentive optics (optical pumping) light emitted to the outside light irradiation of the working substance in order to achieve population inversion, the entire incentive device, usually a composition by the gas-discharge light sources (such as xenon lamps, krypton lamp), and condenser. ② gas discharge excitation is the use of the gas discharge process in the gas working substance to achieve population inversion, the entire incentive devices typically discharge electrode and the discharge power. ③ Chemical incentives. occurring chemical within the working substance reaction process to achieve population inversion, usually requires appropriate chemical reactants and the corresponding measures of trigger (4) nuclear energy incentive is the use of a small nuclear fission reaction of fission fragments, the high-energy particles or radiation to inspire the work material and to achieve inversion. So that the customer can hold green laser pointer more easily and comfortably.
Recently developed a free-electron laser, the working medium in a periodic magnetic field in the movement of high-speed electron beam, the laser wavelength can cover a broad band from microwave to X-ray. By way of working, continuous, pulsed, Q laser wavelength emitted by a variety of different types of lasers and ultrashort pulse type high-power lasers are usually pulse output has reached thousands of the longest wavelength of the microwave band of 0.7 mm, the shortest wavelength of laser in the far ultraviolet region of 210 angstroms, the X-ray band is also being studied. 2.1.2 The laser works in addition to free-electron laser, the basic working principle of a variety of lasers are the same device an integral part of incentive ( or pumping). Many customers speak highly of this type of green laser pointer .
Working medium and the cavity of the metastable level. Incentive is excited to the excited states of the working medium to absorb foreign energy, to create the conditions to achieve and maintain population inversion. Incentives optical incentive, electrical stimulation, chemical excitation and nuclear incentives working medium has a metastable level by stimulated emission of radiation dominated, in order to achieve optical amplification. photon of the resonator cavity can have a consistent frequency, phase, and the direction of travel, so that the laser has a good orientation of and coherence. 2.1.3 laser material laser material means used to achieve population inversion and produces light by stimulated emission of radiation amplification of the material system, sometimes referred to as the laser gain medium. This kind of 5 in 1 usa green laser pointer is very powerful.
They can be solid (crystal, glass), gas (atomic gas, ionized gas, molecular gas), semiconductor and liquid and other media. The main requirements on the laser material, as much as possible to achieve a more specific level of the particles large degree of population inversion, and that this reversal in the process of the whole laser emission role as effectively as possible maintained; To this end, the working substance has the appropriate level structure and transition properties. excitation (pump) 2.1 .4 excitation (pump) system excitation (pump) system to achieve and maintain the population inversion for the laser material and provide a source of energy bodies or devices according to the different material and laser operating conditions, can take different the incentive of four methods and incentive devices have the following four. Normally, we will provide many options for the customer to select one or several special pattern effect of the laser cap of green laser pointer he or she likes.
Incentive optics (optical pumping) light emitted to the outside light irradiation of the working substance in order to achieve population inversion, the entire incentive device, usually a composition by the gas-discharge light sources (such as xenon lamps, krypton lamp), and condenser. ② gas discharge excitation is the use of the gas discharge process in the gas working substance to achieve population inversion, the entire incentive devices typically discharge electrode and the discharge power. ③ Chemical incentives. occurring chemical within the working substance reaction process to achieve population inversion, usually requires appropriate chemical reactants and the corresponding measures of trigger (4) nuclear energy incentive is the use of a small nuclear fission reaction of fission fragments, the high-energy particles or radiation to inspire the work material and to achieve inversion. So that the customer can hold green laser pointer more easily and comfortably.
Usa green laser pointer can be classified into the green laser pointer
Pearl River Delta are mainly rely on the Shenzhen River, Fujian, two large laser companies, relying on the Shanghai research institutions mainly in the Yangtze River Delta, central China while Wuhan as the center, in the laser crystal materials research and production in the country occupies an important position. Figure 6 Chinese laser industry distribution size of the domestic market and development trend of the laser crystal field, the market size of the global laser industry, domestic market size of the laser industry Figure 7 2002-2007 8 2002-2007 Chart China's laser industry market scale movements from the five years 2002-2007, the global market size of the laser industry rose from $ 4,300,000,000 to $ 6,890,000,000, an average annual growth of 8%, in the 2002-2007 five years. green laser pointer can be divided according to the wavelength of the laser light of the laser pointer.
The growth of the laser industry in China is much larger than this, the annual growth rate of 15%, the market size of the laser industry in China in 2007 from 2.862 billion yuan in 2002 to grow to 5.8 billion yuan. In 2008, the Chinese laser industry market size reached $ 80 billion. Laser industry with the world growth in 2009 and 2010, the market scale of China's laser industry has declined, however, with the Chinese government in a series of plans to stimulate the economy and guide the country's economic growth mode transformation, driven by the state The economy has maintained steady growth, which will play a key role in the steady improvement of the laser industry in the next few years. green laser pointer can be classified as per the color of the laser light of the laser pointer.
Expected growth and gradually expand the scale of China's laser industry will continue to maintain financial crisis in the next few years ago, which also indicates that the laser crystal material demand will increase each year. 2, the laser industry development trend of laser industry future development trend of the laser crystal industry downstream demand market status and trends of the major downstream 6, Status and trends of the main downstream of the laser crystal industry needs market a domestic precision laser processing and service sectors precision laser manufacturing and service industry as a laser crystal material downstream industries, more and more national attention, the world's manufacturing powers gradually laser processing technology to replace the traditional guidance techniques. China is no exception in recent years, the size of the market for precision laser processing industry in the expanding shown, from 2007 to 2010, the annual growth rate of more than 20%. usa green laser pointer can be classified into the green laser pointer, blue laser pointer, blue violet laser pointer, yellow laser pointer, red laser pointer and so on.
The scale of this market to expand by 1.582 billion yuan to 3.012 billion yuan and is expected to expand faster in the future. Figure 10 precision laser processing and the service sector output in Figure 11 precision laser machining and services industry annual growth rate of 2, the world's small and medium-power laser cutting industry statistics show that in 2008 (Industrial Laser Solutions), the small and medium-power laser cutting industry output value in about 10% the proportion of the global laser industry, market size is about $ 640 million, as shown in the past few years, the global small and medium-power laser cutting industry, the market is expanding, although read in 2008-2009 The growth rate slowed down. Normally, the yellow green laser pointer is the most expensive.
With the global economy continued to pick up the next two years, the market size of the global small and medium-power laser cutting industry will rapidly expand to 1.73 billion U.S. dollars, the growth rate is also expected to be more rapid. Figure 12 global small and medium-power laser cutting industry, market size Figure 13 global small and medium-power laser cutting industry market growth in China, in 2008, small and medium-power laser cutting equipment market size of about 402 million yuan, and the world in 2009 by the International impact of financial crisis, China's small and medium-sized power cutting machine market growth is slowing down. Expected in the next two years under the impetus of industrial upgrading and technological transformation of China's manufacturing industry, small and medium-power laser cutting equipment market will quickly enhance and maintain high growth. The pure blue green laser pointer is the second most expensive.
The growth of the laser industry in China is much larger than this, the annual growth rate of 15%, the market size of the laser industry in China in 2007 from 2.862 billion yuan in 2002 to grow to 5.8 billion yuan. In 2008, the Chinese laser industry market size reached $ 80 billion. Laser industry with the world growth in 2009 and 2010, the market scale of China's laser industry has declined, however, with the Chinese government in a series of plans to stimulate the economy and guide the country's economic growth mode transformation, driven by the state The economy has maintained steady growth, which will play a key role in the steady improvement of the laser industry in the next few years. green laser pointer can be classified as per the color of the laser light of the laser pointer.
Expected growth and gradually expand the scale of China's laser industry will continue to maintain financial crisis in the next few years ago, which also indicates that the laser crystal material demand will increase each year. 2, the laser industry development trend of laser industry future development trend of the laser crystal industry downstream demand market status and trends of the major downstream 6, Status and trends of the main downstream of the laser crystal industry needs market a domestic precision laser processing and service sectors precision laser manufacturing and service industry as a laser crystal material downstream industries, more and more national attention, the world's manufacturing powers gradually laser processing technology to replace the traditional guidance techniques. China is no exception in recent years, the size of the market for precision laser processing industry in the expanding shown, from 2007 to 2010, the annual growth rate of more than 20%. usa green laser pointer can be classified into the green laser pointer, blue laser pointer, blue violet laser pointer, yellow laser pointer, red laser pointer and so on.
The scale of this market to expand by 1.582 billion yuan to 3.012 billion yuan and is expected to expand faster in the future. Figure 10 precision laser processing and the service sector output in Figure 11 precision laser machining and services industry annual growth rate of 2, the world's small and medium-power laser cutting industry statistics show that in 2008 (Industrial Laser Solutions), the small and medium-power laser cutting industry output value in about 10% the proportion of the global laser industry, market size is about $ 640 million, as shown in the past few years, the global small and medium-power laser cutting industry, the market is expanding, although read in 2008-2009 The growth rate slowed down. Normally, the yellow green laser pointer is the most expensive.
With the global economy continued to pick up the next two years, the market size of the global small and medium-power laser cutting industry will rapidly expand to 1.73 billion U.S. dollars, the growth rate is also expected to be more rapid. Figure 12 global small and medium-power laser cutting industry, market size Figure 13 global small and medium-power laser cutting industry market growth in China, in 2008, small and medium-power laser cutting equipment market size of about 402 million yuan, and the world in 2009 by the International impact of financial crisis, China's small and medium-sized power cutting machine market growth is slowing down. Expected in the next two years under the impetus of industrial upgrading and technological transformation of China's manufacturing industry, small and medium-power laser cutting equipment market will quickly enhance and maintain high growth. The pure blue green laser pointer is the second most expensive.
Usa green laser pointer can be separated by the wavelength
When two polarizers set the system transmittance spindle angle of 45 °, the sensor system after the outgoing light intensity as follows: l = (Io / 2) (1 + sin2θF) where Io is the incident light intensity. The emitted light intensity measurement can be drawn θF, which can measure the size of the current. The laser gyro Ring Laser Gyro is a without any external reference to the Sagnac effect of optical methods to the new solid-state inertial devices for sensitive measurement of the angular velocity of the rotating body. Sagnac effect in the ring optical path when the loop with respect to inertial space with angular velocity Ωr rotation, the optical path of the counter-clockwise will produce the difference △ L, Shun, △ L = △ S Ω, r / C, this effect known as the Sagnac effect. The laser gyro is based on the Sagnac effect. This pulse function of green laser pointer is also very practical in the daily use for some special locations.
The laser gyro has a small size, low power consumption, anti-vibration, anti-electromagnetic interference, low noise, good linearity, wide dynamic range, high sensitivity many advantages and is widely used in missile guidance, aircraft, ships, aerospace, artificial satellites, submarines, unmanned aircraft inertial navigation systems, car navigation, and so on. In addition, the attitude control of the oil drilling, camera, antenna platform stabilization, robotics and other self-control directional device has also been widely used. Here's how it works, as shown below, the dielectric film reflecting mirror constitute a low-loss laser resonator, the He-Ne laser gain tube light gain effect. green laser pointer can be divided by the material.
Cavity to maintain a stable cis retrograde wave oscillation, in order to detect the reverse traveling wave frequency difference △ ν is the need to use part of the transmission of a cavity mirror M1, the reverse traveling wave leads to the cavity, the beam combiner The prism beam combiner interference last Optoelectronics PD receiver. 9 Faraday element selected in the laser gyro is flint glass, crown glass to a uniform medium. In the transverse Kerr effect is often used magneto-optical crystals of rare earth yttrium iron garnet, such as a magnetic film (BiPrG-dYb) 3 (FeAl) 5O12 as a magnetic mirror instead of the M1, when K, +, K_ two beam polarized light reach all parts of the lateral increase in the magnetic mirror, the nonreciprocal phase-shift frequency difference, when the incident magnetic field is alternating, then the PD received partial frequency alternating, according to the partial frequency signals to navigate the inertial system, this is the working principle of the laser gyro. usa green laser pointer can be separated by the wavelength.
Microwave devices YIG ferromagnetic resonance line width, compact structure, good temperature stability, with small features of the electromagnetic loss characteristics at high frequencies. These characteristics make YIG suitable made of all kinds, such as high-frequency synthesizer, the band-pass filter, oscillator, the A-D tuning drive and other microwave devices, has been widely applied in the X-ray band below the microwave band. In addition, the magneto-optical crystal can also be made of the ring, and magneto-optical and magneto-optical display devices. Magneto-optical crystal materials research and development as well as data of YIG single crystal YIG single crystal (yttrium iron garnet) is a number of the magnetic properties of synthetic iron oxide crystals, used to adjust the laser. green laser pointer can be classified by the surface treatment.
Foreign YIG single crystal materials began in 1956 to 1958, Bell Laboratories in the U.S. using the cosolvent method to take the lead in the successful development of YIG single crystal, 1965, American Paken - Ai Lemo launched in YIG single-crystal films. Efforts in the 1960s, of YIG single crystal / film already reached the practical level. 1964, China has also developed a massive single crystal of YIG ferrite with small line width, and started to be made of the diameter of only 1mm or so the YIG small ball high-Q harmonic oscillator. For the YIG-tuned broadband filters, oscillators, and its various components. It is green laser pointer divided by material, wavelength and surface treatment.
The laser gyro has a small size, low power consumption, anti-vibration, anti-electromagnetic interference, low noise, good linearity, wide dynamic range, high sensitivity many advantages and is widely used in missile guidance, aircraft, ships, aerospace, artificial satellites, submarines, unmanned aircraft inertial navigation systems, car navigation, and so on. In addition, the attitude control of the oil drilling, camera, antenna platform stabilization, robotics and other self-control directional device has also been widely used. Here's how it works, as shown below, the dielectric film reflecting mirror constitute a low-loss laser resonator, the He-Ne laser gain tube light gain effect. green laser pointer can be divided by the material.
Cavity to maintain a stable cis retrograde wave oscillation, in order to detect the reverse traveling wave frequency difference △ ν is the need to use part of the transmission of a cavity mirror M1, the reverse traveling wave leads to the cavity, the beam combiner The prism beam combiner interference last Optoelectronics PD receiver. 9 Faraday element selected in the laser gyro is flint glass, crown glass to a uniform medium. In the transverse Kerr effect is often used magneto-optical crystals of rare earth yttrium iron garnet, such as a magnetic film (BiPrG-dYb) 3 (FeAl) 5O12 as a magnetic mirror instead of the M1, when K, +, K_ two beam polarized light reach all parts of the lateral increase in the magnetic mirror, the nonreciprocal phase-shift frequency difference, when the incident magnetic field is alternating, then the PD received partial frequency alternating, according to the partial frequency signals to navigate the inertial system, this is the working principle of the laser gyro. usa green laser pointer can be separated by the wavelength.
Microwave devices YIG ferromagnetic resonance line width, compact structure, good temperature stability, with small features of the electromagnetic loss characteristics at high frequencies. These characteristics make YIG suitable made of all kinds, such as high-frequency synthesizer, the band-pass filter, oscillator, the A-D tuning drive and other microwave devices, has been widely applied in the X-ray band below the microwave band. In addition, the magneto-optical crystal can also be made of the ring, and magneto-optical and magneto-optical display devices. Magneto-optical crystal materials research and development as well as data of YIG single crystal YIG single crystal (yttrium iron garnet) is a number of the magnetic properties of synthetic iron oxide crystals, used to adjust the laser. green laser pointer can be classified by the surface treatment.
Foreign YIG single crystal materials began in 1956 to 1958, Bell Laboratories in the U.S. using the cosolvent method to take the lead in the successful development of YIG single crystal, 1965, American Paken - Ai Lemo launched in YIG single-crystal films. Efforts in the 1960s, of YIG single crystal / film already reached the practical level. 1964, China has also developed a massive single crystal of YIG ferrite with small line width, and started to be made of the diameter of only 1mm or so the YIG small ball high-Q harmonic oscillator. For the YIG-tuned broadband filters, oscillators, and its various components. It is green laser pointer divided by material, wavelength and surface treatment.
Thursday, February 23, 2012
The engineer with improving the quality of green laser pointer
Therefore, the current domestic mold industry is generally the first EDM and semi-finishing, the final polishing using ultrasonic finishing. Characteristics apply to the processing of hard brittle materials (especially the non-conductive hard and brittle materials), such as glass, quartz, ceramics, precious stones, diamonds, a variety of semiconductor materials, hardened steel, alloy steel and so on. Can be made the tool of complex shape than workpiece soft materials. Removal of the allowance is to rely on abrasive instantaneous local impact of the tool on the workpiece surface macro forces small, heat-affected small and does not cause deformation and burn, and therefore suitable for thin wall parts and the narrow groove of the workpiece, holes. The technology of green laser pointer will be discussed during the meeting.
The basic principles of rapid prototyping technology. Rapid prototyping technology is a general term for the principle of discrete layered production prototype, the principle is: the accumulation of raw materials → 3D CAD models → layered discrete → discrete plane geometry layer by layer processing to generate a solid model. The technology of computer technology, laser processing technology, new materials technology, relying on the CAD software in the computer to create a three-dimensional solid model, and cut into a series of plane geometry, in order to control the laser beam scanning direction and speed, means of using bonding, sintering, polymerization or chemical reaction layer selective processing of raw materials, to rapid accumulation of production of the product solid model. Modulation of laser beam of usa green laser pointer can be achieved to get the expected picture. The production requirement of green laser pointer should be strictly obeyed.
Processing characteristics of rapid prototyping technology. Rapid prototyping technology breakthrough in the traditional parts of the rough → cutting → product "processing mode, and create the parts do not have the tool to make the first of its kind, is a thin layer of an unprecedented superposition processing method. Compared to traditional machining methods, rapid prototyping process has the following advantages: You can quickly create a free surface and a more complex form part of new products such as parts of the groove, the shroud and the hollow part of the greatly reduced development costs and development cycle. Is a non-contact processing, no machine cutting tools and fixtures necessary, no tool wear and cutting force of impact. The quality feedback of green laser pointer will be help the engineer with improving the quality of green laser pointer .
No vibration, noise, and cutting waste. Can be realized fully automated production at night. Processing efficiency, and can quickly create a solid model and mold. Compared to traditional machining methods, rapid prototyping process has the following advantages: You can quickly create a free surface and a more complex form part of new products such as parts of the groove, the shroud and the hollow part of the greatly reduced development costs and development cycle. Is a non-contact processing, no machine cutting tools and fixtures necessary, no tool wear and cutting force of impact. No vibration, noise, and cutting waste. Can be realized fully automated production at night. Processing efficiency, and can quickly create a solid model and mold. The lifetime of green laser pointer will be longer if green laser pointer is used properly.
Plasma arc cutting is the use of high-temperature plasma arc heat the metal of the workpiece incision partial melting (and evaporation), and by high-speed plasma momentum to rule out a processing method for the molten metal to form the incision. Plasma cutting is developed to now can be the working gas (working gas plasma arc conductive medium, but also to bring a hot body, but also exclude the incision in the molten metal) on the plasma arc cutting features and cutting quality, the speed has significant impact. The plasma arc working gas of argon, hydrogen, nitrogen, oxygen, air, water vapor and gas mixture. The specific requirement of green laser pointer should be carefully obeyed.
The basic principles of rapid prototyping technology. Rapid prototyping technology is a general term for the principle of discrete layered production prototype, the principle is: the accumulation of raw materials → 3D CAD models → layered discrete → discrete plane geometry layer by layer processing to generate a solid model. The technology of computer technology, laser processing technology, new materials technology, relying on the CAD software in the computer to create a three-dimensional solid model, and cut into a series of plane geometry, in order to control the laser beam scanning direction and speed, means of using bonding, sintering, polymerization or chemical reaction layer selective processing of raw materials, to rapid accumulation of production of the product solid model. Modulation of laser beam of usa green laser pointer can be achieved to get the expected picture. The production requirement of green laser pointer should be strictly obeyed.
Processing characteristics of rapid prototyping technology. Rapid prototyping technology breakthrough in the traditional parts of the rough → cutting → product "processing mode, and create the parts do not have the tool to make the first of its kind, is a thin layer of an unprecedented superposition processing method. Compared to traditional machining methods, rapid prototyping process has the following advantages: You can quickly create a free surface and a more complex form part of new products such as parts of the groove, the shroud and the hollow part of the greatly reduced development costs and development cycle. Is a non-contact processing, no machine cutting tools and fixtures necessary, no tool wear and cutting force of impact. The quality feedback of green laser pointer will be help the engineer with improving the quality of green laser pointer .
No vibration, noise, and cutting waste. Can be realized fully automated production at night. Processing efficiency, and can quickly create a solid model and mold. Compared to traditional machining methods, rapid prototyping process has the following advantages: You can quickly create a free surface and a more complex form part of new products such as parts of the groove, the shroud and the hollow part of the greatly reduced development costs and development cycle. Is a non-contact processing, no machine cutting tools and fixtures necessary, no tool wear and cutting force of impact. No vibration, noise, and cutting waste. Can be realized fully automated production at night. Processing efficiency, and can quickly create a solid model and mold. The lifetime of green laser pointer will be longer if green laser pointer is used properly.
Plasma arc cutting is the use of high-temperature plasma arc heat the metal of the workpiece incision partial melting (and evaporation), and by high-speed plasma momentum to rule out a processing method for the molten metal to form the incision. Plasma cutting is developed to now can be the working gas (working gas plasma arc conductive medium, but also to bring a hot body, but also exclude the incision in the molten metal) on the plasma arc cutting features and cutting quality, the speed has significant impact. The plasma arc working gas of argon, hydrogen, nitrogen, oxygen, air, water vapor and gas mixture. The specific requirement of green laser pointer should be carefully obeyed.
Usa green laser pointer has a profitable market opportunity
The basic principles of ion beam processing. Ion beam processing is under vacuum conditions, the first electron gun electron beam, then the introduction has been drawn into a vacuum and filled with inert gas ionization chamber, low pressure inert gas ion. From the negative leads to the cation but also by the steps of acceleration, cluster, and finally launched into the workpiece surface. The ion beam processing according to their purpose can be divided into two kinds of etching and coating. Etching can be divided into the sputter etching and ion etching two. Ions in the plasma generation chamber, the workpiece impact etching, sputter etching. Produce electrons accelerate the ions to restore the atom and impact material etched ion etching. Lack of green laser pointer can hinder the progress of a smooth communication between they and their listeners.
Ion etching for trench processing the gyroscopes air bearings and the dynamic pressure motor, high resolution, accuracy, repeat consistency. Another aspect of the application of ion beam etching is the etching precision graphics, such as integrated circuits, optoelectronic devices and optical integrated devices such as levy electronics components. The solar cell surface non-reflective texture surface. Thinning materials, ion beam etching is used in the production of transmission electron microscopy (TEM) specimens. The coating process of ion beam sputter deposition and ion plating two forms. Ion plating can coat a wide range of materials, metals, non-metallic surfaces can be coated metal or non-metallic thin films, a variety of alloys, compounds, or certain synthetic materials, semiconductor materials, high melting point materials can be coated. The design of green laser pointer controller is specific to the application of laser lights.
Ion beam coating technology can be used for the coated lubricating film, heat-resistant film, wear-resistant film, decorative film and electrical film. Ion beam deposition instead of the dura mater, chrome-plated and chrome plated to reduce public nuisance. Ion etching or ion cut drama: the tilt of Ar ion bombardment of the workpiece, the workpiece surface atoms one by one stripped. Ion sputtering deposition: Ar ion tilt bombardment of some kind of material of the target, the target atom was shot out after precipitation in the target near the workpiece, so that deposited on the surface layer of film. Ion plating or ion sputtering assisted assisted deposition: it ion sputtering deposition difference is that the bombardment of the target and the workpiece, the purpose is to enhance the binding force between the membrane and the workpiece substrate. green laser pointer can make their teaching and demonstration more lively and perfect.
Ion implantation: the high energy ion beam direct bombardment of the material being processed, so that the workpiece surface layer containing the implanted ions, changing the chemical composition of the workpiece surface, thus changing the physical, mechanical and chemical properties of the surface layer, to meet the requirements of specific areas . Ultrasonic machining (USM Ultrasonic Machining) is the use of ultrasonic vibration of the tool in the abrasive liquid medium or dry abrasive, resulting in the impact of abrasives, polishing, hydraulic shocks and the resulting role of cavitation to remove the material, as well as the use of ultrasonic vibration to the workpiece combination of processing methods. usa green laser pointer has a profitable market opportunity.
Ultrasonic machining technology is emerging with the machinery and equipment manufacturing in a variety of brittle materials (such as glass, ceramics, semiconductors, ferrites, etc.) and difficult to machine materials (such as high temperature and insoluble alloy, carbide, etc.) application and development of new processing methods. When transmitted through the liquid medium, will be a very high frequency compression liquid particle vibration, continuous formation of compression and sparse region to produce liquid impact and cavitation caused by adjacent solid material dispersed, broken effect. Ultrasonic machining, EDM, ECM production efficiency is low, but the machining accuracy and surface roughness than the former. And processing of semiconductor and semiconductor. The importance of research of green laser pointer should be emphasized.
Ion etching for trench processing the gyroscopes air bearings and the dynamic pressure motor, high resolution, accuracy, repeat consistency. Another aspect of the application of ion beam etching is the etching precision graphics, such as integrated circuits, optoelectronic devices and optical integrated devices such as levy electronics components. The solar cell surface non-reflective texture surface. Thinning materials, ion beam etching is used in the production of transmission electron microscopy (TEM) specimens. The coating process of ion beam sputter deposition and ion plating two forms. Ion plating can coat a wide range of materials, metals, non-metallic surfaces can be coated metal or non-metallic thin films, a variety of alloys, compounds, or certain synthetic materials, semiconductor materials, high melting point materials can be coated. The design of green laser pointer controller is specific to the application of laser lights.
Ion beam coating technology can be used for the coated lubricating film, heat-resistant film, wear-resistant film, decorative film and electrical film. Ion beam deposition instead of the dura mater, chrome-plated and chrome plated to reduce public nuisance. Ion etching or ion cut drama: the tilt of Ar ion bombardment of the workpiece, the workpiece surface atoms one by one stripped. Ion sputtering deposition: Ar ion tilt bombardment of some kind of material of the target, the target atom was shot out after precipitation in the target near the workpiece, so that deposited on the surface layer of film. Ion plating or ion sputtering assisted assisted deposition: it ion sputtering deposition difference is that the bombardment of the target and the workpiece, the purpose is to enhance the binding force between the membrane and the workpiece substrate. green laser pointer can make their teaching and demonstration more lively and perfect.
Ion implantation: the high energy ion beam direct bombardment of the material being processed, so that the workpiece surface layer containing the implanted ions, changing the chemical composition of the workpiece surface, thus changing the physical, mechanical and chemical properties of the surface layer, to meet the requirements of specific areas . Ultrasonic machining (USM Ultrasonic Machining) is the use of ultrasonic vibration of the tool in the abrasive liquid medium or dry abrasive, resulting in the impact of abrasives, polishing, hydraulic shocks and the resulting role of cavitation to remove the material, as well as the use of ultrasonic vibration to the workpiece combination of processing methods. usa green laser pointer has a profitable market opportunity.
Ultrasonic machining technology is emerging with the machinery and equipment manufacturing in a variety of brittle materials (such as glass, ceramics, semiconductors, ferrites, etc.) and difficult to machine materials (such as high temperature and insoluble alloy, carbide, etc.) application and development of new processing methods. When transmitted through the liquid medium, will be a very high frequency compression liquid particle vibration, continuous formation of compression and sparse region to produce liquid impact and cavitation caused by adjacent solid material dispersed, broken effect. Ultrasonic machining, EDM, ECM production efficiency is low, but the machining accuracy and surface roughness than the former. And processing of semiconductor and semiconductor. The importance of research of green laser pointer should be emphasized.
The production management of green laser pointer will not be discussed
In fact, the homogeneous linewidths of the type with non-uniform broadening the type of saturation effects influence the frequency range is as large as. Doppler much wider than the homogeneous linewidths, the same frequency range for the Doppler broadening can only burn a hole. Doppler broadening gas lasers, due to the existence of the resonant cavity, the cavity beam is contrary to the direction of propagation of two traveling wave. The frequency of light waves spread along the cavity axis positive direction will cause the speed of movement along the cavity axis direction. Reversal near the particle number density distribution of the value of saturation, thus burning a hole near the curve; spread along the cavity axis negative direction, the frequency of light waves will cause the value of the particle number density along the cavity axis direction of the velocity near the inversion distribution saturation. The single beam of red ray is coming out of green laser pointer .
Speed of the particle number density inversion distribution is the frequency along the cavity axis direction of propagation of the light waves in order to gain contributor to its saturation will cause the light waves are propagating along the cavity axis frequency gain of the gain medium saturated, that is spread along the cavity axis negative direction, the frequency of light waves will burn a hole in the gain curve near. Therefore, the frequency of light waves in the gain curve, burned two holes, they are symmetrically distributed on both sides of the center frequency, as shown in Figure (2-14) as shown. If the light wave frequency happens to be the center frequency of the Doppler broadening lineshape function, the light waves only burn a hole in the gain curve. That the center frequency of the light waves only along the cavity axis direction, the velocity is zero, the excited particles by Stimulated Emission of Radiation. The production management of green laser pointer will not be discussed.
Figure (2-14) in the homogeneous linewidths of the laser gain saturation. The loss of the laser threshold condition. A prerequisite of lasers produce laser media must achieve a level between the particle number density inversion distribution, or the gain coefficient. However, the light waves in the particle number density inversion distribution media to spread all kinds of loss, only when the light energy to increase the gain amplifier in addition to the part to compensate for lost due to wear and tear, but also have surplus light waves can be amplified. So they requested that the gain coefficient is greater than a lower limit, this lower limit is the threshold of the laser, it is determined by the size of the various losses. The short preheating time of green laser pointer can ensure the longer and more stable use of usa green laser pointer .
This section is from the analysis of stability of light intensity formed to identify the two-way optical amplification of the relationship between multiples of K and the gain coefficient and a variety of loss, to arrive at the threshold of the gain factor expression and particle number density inversion distribution The threshold expression. The loss of the laser. Laser loss is the optical loss in the laser cavity, this loss can be divided into two categories, the first category is the loss of the resonant cavity within the gain medium, the length of the gain medium, is called the internal loss, two types of loss can be equivalent to the loss of the resonant cavity mirror surface, called the mirror loss. Internal loss. Uneven composition, particle number density is uneven or defective within the gain medium, the light through this medium will be refracted, scattered, so that part of the light waves from the original direction of propagation, resulting in the loss of light energy. Application of green laser pointer contains the lecture and meeting.
There will be the next level of particles absorb solar energy, the transition to the other upper-level to cause the loss of light energy within the gain medium. When light passes through the gain medium, the gain at the same time, again due to the existence of these losses relative rate decreases, known as the coefficient of internal losses and the gain coefficient has the dimension. It indicates that the light passing through a unit length of medium time relative loss rate, the longer the media, the more light energy lost due to internal loss at this time, the light variation in the gain medium (1-91) to change the following formula. Intensity hitting the mirror, the light waves of I, where I part (or I) is reflected back in the cavity continue to zoom in, the rest of the cavity loss. The green laser pointer company has added several more production lines of green laser pointer .
Speed of the particle number density inversion distribution is the frequency along the cavity axis direction of propagation of the light waves in order to gain contributor to its saturation will cause the light waves are propagating along the cavity axis frequency gain of the gain medium saturated, that is spread along the cavity axis negative direction, the frequency of light waves will burn a hole in the gain curve near. Therefore, the frequency of light waves in the gain curve, burned two holes, they are symmetrically distributed on both sides of the center frequency, as shown in Figure (2-14) as shown. If the light wave frequency happens to be the center frequency of the Doppler broadening lineshape function, the light waves only burn a hole in the gain curve. That the center frequency of the light waves only along the cavity axis direction, the velocity is zero, the excited particles by Stimulated Emission of Radiation. The production management of green laser pointer will not be discussed.
Figure (2-14) in the homogeneous linewidths of the laser gain saturation. The loss of the laser threshold condition. A prerequisite of lasers produce laser media must achieve a level between the particle number density inversion distribution, or the gain coefficient. However, the light waves in the particle number density inversion distribution media to spread all kinds of loss, only when the light energy to increase the gain amplifier in addition to the part to compensate for lost due to wear and tear, but also have surplus light waves can be amplified. So they requested that the gain coefficient is greater than a lower limit, this lower limit is the threshold of the laser, it is determined by the size of the various losses. The short preheating time of green laser pointer can ensure the longer and more stable use of usa green laser pointer .
This section is from the analysis of stability of light intensity formed to identify the two-way optical amplification of the relationship between multiples of K and the gain coefficient and a variety of loss, to arrive at the threshold of the gain factor expression and particle number density inversion distribution The threshold expression. The loss of the laser. Laser loss is the optical loss in the laser cavity, this loss can be divided into two categories, the first category is the loss of the resonant cavity within the gain medium, the length of the gain medium, is called the internal loss, two types of loss can be equivalent to the loss of the resonant cavity mirror surface, called the mirror loss. Internal loss. Uneven composition, particle number density is uneven or defective within the gain medium, the light through this medium will be refracted, scattered, so that part of the light waves from the original direction of propagation, resulting in the loss of light energy. Application of green laser pointer contains the lecture and meeting.
There will be the next level of particles absorb solar energy, the transition to the other upper-level to cause the loss of light energy within the gain medium. When light passes through the gain medium, the gain at the same time, again due to the existence of these losses relative rate decreases, known as the coefficient of internal losses and the gain coefficient has the dimension. It indicates that the light passing through a unit length of medium time relative loss rate, the longer the media, the more light energy lost due to internal loss at this time, the light variation in the gain medium (1-91) to change the following formula. Intensity hitting the mirror, the light waves of I, where I part (or I) is reflected back in the cavity continue to zoom in, the rest of the cavity loss. The green laser pointer company has added several more production lines of green laser pointer .
Wednesday, February 22, 2012
Green laser pointer can remotely control the computers
Optical incentive (optical pumping). The light emitted to the outside light irradiation of the working substance in order to achieve population inversion laser, the entire incentive device, usually by the gas-discharge light sources (such as xenon lamps, krypton lamp) and condenser composition, such incentives are also known as as lamp-pumped. Gas discharge excitation. To achieve population inversion, the entire incentive devices typically discharge electrode and the discharge power is the use of gas discharge processes occurring in the gas working substance. Chemical incentives. Is the use of the process of chemical reactions that occur within the working substance to achieve population inversion, usually requires appropriate chemical reactants and the corresponding trigger measures. green laser pointer is the 3 in 1 type.
Nuclear energy incentives. Is the fission fragments produced by the use of a small nuclear fission reaction, high-energy particles or radiation work to motivate the material and to achieve population inversion. Usually a combination of a certain way by certain geometric shapes and optical reflective properties of the two mirrors. Role as follows: (1) to provide optical feedback capacity, so that stimulated emission photons in the cavity, multiple trips to the formation of a coherent and sustained oscillation. ② direction and frequency of the cavity between the oscillating beam limit in order to ensure that the output laser has a certain directivity and monochromaticity. The role of cavity ① is usually composed of two mirror cavity geometry (radius of curvature of the reflecting surface) and relative combinations. The packing list of green laser pointer contains many things.
Role ② The given cavity type cavity direction of travel and different frequencies of light have different selective loss characteristics determined. Types of lasers are many. Below, respectively, from the laser material incentives operation, the output wavelength range of several laser classification introduced. Classified according to the working substance. All laser is divided into the following categories: (1) solid-state lasers (crystal and glass), this type of laser used in the working substance is by metal ions doped able to generate stimulated emission of the role of state different from the work of Matter constitute the luminescence center and made into a crystal or glass matrix. The material color of green laser pointer is black.
Gas lasers, they used material is gas, and really generated by stimulated emission of the role of particle properties different according to the gas, and further divided into atomic gas lasers, ion gas lasers, molecular gas lasers, excimer gas lasers work material; ③ liquid lasers, these lasers are used mainly include two categories, an organic fluorescent dye solution, the other is the solution of inorganic compounds containing rare earth metal ions, in which metal ions (Nd) from the work of particle effect , and inorganic compounds, liquid (eg SeOCl) since the role of the matrix; ④ semiconductor lasers, these lasers are semiconductor materials for working material generated by stimulated emission effect. What’s more, USB flash disks could also be integrated into usa green laser pointer .
The principle is that through certain incentives (power injected into the optical pump or high-energy electron beam injection), the number of particles through the excitation of non-equilibrium carriers between the semiconductor material of the band or the band and impurity level between anti- turn, produce light by stimulated emission of the role; ⑤ free electron laser, which is a special type of a new type of laser, the working substance in the space cycle changes in the magnetic field in high-speed motion directed free-electron beam, as long as the change in free electron beam speed can generate tunable coherent electromagnetic radiation, in principle, their coherent radiation spectrum from X-ray band transition to the microwave region, and therefore has a very attractive prospect. By incentives. green laser pointer can remotely control the computers.
Nuclear energy incentives. Is the fission fragments produced by the use of a small nuclear fission reaction, high-energy particles or radiation work to motivate the material and to achieve population inversion. Usually a combination of a certain way by certain geometric shapes and optical reflective properties of the two mirrors. Role as follows: (1) to provide optical feedback capacity, so that stimulated emission photons in the cavity, multiple trips to the formation of a coherent and sustained oscillation. ② direction and frequency of the cavity between the oscillating beam limit in order to ensure that the output laser has a certain directivity and monochromaticity. The role of cavity ① is usually composed of two mirror cavity geometry (radius of curvature of the reflecting surface) and relative combinations. The packing list of green laser pointer contains many things.
Role ② The given cavity type cavity direction of travel and different frequencies of light have different selective loss characteristics determined. Types of lasers are many. Below, respectively, from the laser material incentives operation, the output wavelength range of several laser classification introduced. Classified according to the working substance. All laser is divided into the following categories: (1) solid-state lasers (crystal and glass), this type of laser used in the working substance is by metal ions doped able to generate stimulated emission of the role of state different from the work of Matter constitute the luminescence center and made into a crystal or glass matrix. The material color of green laser pointer is black.
Gas lasers, they used material is gas, and really generated by stimulated emission of the role of particle properties different according to the gas, and further divided into atomic gas lasers, ion gas lasers, molecular gas lasers, excimer gas lasers work material; ③ liquid lasers, these lasers are used mainly include two categories, an organic fluorescent dye solution, the other is the solution of inorganic compounds containing rare earth metal ions, in which metal ions (Nd) from the work of particle effect , and inorganic compounds, liquid (eg SeOCl) since the role of the matrix; ④ semiconductor lasers, these lasers are semiconductor materials for working material generated by stimulated emission effect. What’s more, USB flash disks could also be integrated into usa green laser pointer .
The principle is that through certain incentives (power injected into the optical pump or high-energy electron beam injection), the number of particles through the excitation of non-equilibrium carriers between the semiconductor material of the band or the band and impurity level between anti- turn, produce light by stimulated emission of the role; ⑤ free electron laser, which is a special type of a new type of laser, the working substance in the space cycle changes in the magnetic field in high-speed motion directed free-electron beam, as long as the change in free electron beam speed can generate tunable coherent electromagnetic radiation, in principle, their coherent radiation spectrum from X-ray band transition to the microwave region, and therefore has a very attractive prospect. By incentives. green laser pointer can remotely control the computers.
The battery will be presented as a gift with usa green laser pointer
Later, the American physicist Charles Townes and the Soviet physicist of Masuo Fu, and the general Huoluo Fu has proposed the use of atoms and molecules stimulated radiation principle for generation and amplification of microwave design. In 1954, the previously mentioned American physicist Townes finally made the first ammonia molecular beam maser, successfully pioneered the use of molecular and atomic systems as the precedent of the microwave radiation coherent amplifier or oscillator. Townes, who developed the maser produced only 1.25 cm wavelength of the microwave power is very small. Production and continuous development of the need to promote science to explore new fluorescence mechanism, to produce new high performance light source. green laser pointer has the traditional function like the laser pens.
In 1958, Townes and sister Fu Ese Xiaoluo maser and optical spectroscopy of theoretical knowledge combined, the key recommendations of the open cavity and prevent the coherence of the laser direction , line width, and noise properties. During the same period, Basov and general Huoluo Fu, who also made the realization of the principle scheme of the optical amplification by stimulated emission of radiation. The advent of the laser. Research Laboratory in Miami, Florida 1960, American physicist Theodore Maiman, barely won the worldwide development of competition. He used a high-strength flash tube to stimulate the chromium atoms in the ruby crystal, resulting in a considerable concentration of the thin red beam of light, when it fired at a certain point, can it reach the high temperatures than the sun. The carton of green laser pointer should be in the right place.
In December 1960, the Iranian-born American scientist Jia Wan rate finally succeeded in creating and running the world's first gas laser - He-Ne laser. In 1962, three groups of scientists almost simultaneously invented the semiconductor laser. In 1966, scientists have developed has become an organic dye laser wavelength can be continuously adjustable over the range. In addition, the output energy, high power, and not dependent on the grid of chemical lasers have come out. The latest developments of the laser. For example: the free-electron lasers, excimer lasers, and so on have been invented. Free electron laser: April 1977 Stanford University Deacon and other personnel for the development of the first free-electron laser oscillator. The body of this kind of green laser pointer is firm enough.
By a pumped into the vacuum of 5.2 m long copper tube composed of outside around the superconducting wire in order to transverse static magnetic field changes in a cycle of 3.2 cm throughout the pipe axis magnetic induction intensity B_0 0.24 Waters pull. Brass ends with mirrors form a resonant cavity, the cavity length of 12.7 meters, the output mirror reflectivity of 1.5% energy spread is less than 3 \ times10 ^ {-3} 43.5 MeV electron beam from a superconducting accelerator. Excimer laser: the first excimer laser was born in 1970, which uses the strong electron beam excitation of liquid xenon, xenon excimer lasing effect, the laser wavelength of 1720 Angstroms. The battery will be presented as a gift with usa green laser pointer .
Subsequently, the gas xenon molecules, as well as other rare-gas excimer, rare gas-oxide excimer (oxidation krypton, xenon oxide, oxide, argon, etc.), metal vapor - rare gas excimer (xenon sodium, etc.); rare gases single tooth compounds quasi molecules (XeF, argon fluoride, krypton fluoride, chloride, xenon, xenon bromide, iodide, xenon chloride, krypton, etc.), metal gear compounds excimer (mercuric chloride, bromide of mercury, etc.) and metal quasi- molecules (sodium excimer) was born one after another. Excimer laser material has a lower state of exclusion, it can be effectively taking the time, so the low-state absorption and energy loss. The blue ray green laser pointer must be very expensive.
In 1958, Townes and sister Fu Ese Xiaoluo maser and optical spectroscopy of theoretical knowledge combined, the key recommendations of the open cavity and prevent the coherence of the laser direction , line width, and noise properties. During the same period, Basov and general Huoluo Fu, who also made the realization of the principle scheme of the optical amplification by stimulated emission of radiation. The advent of the laser. Research Laboratory in Miami, Florida 1960, American physicist Theodore Maiman, barely won the worldwide development of competition. He used a high-strength flash tube to stimulate the chromium atoms in the ruby crystal, resulting in a considerable concentration of the thin red beam of light, when it fired at a certain point, can it reach the high temperatures than the sun. The carton of green laser pointer should be in the right place.
In December 1960, the Iranian-born American scientist Jia Wan rate finally succeeded in creating and running the world's first gas laser - He-Ne laser. In 1962, three groups of scientists almost simultaneously invented the semiconductor laser. In 1966, scientists have developed has become an organic dye laser wavelength can be continuously adjustable over the range. In addition, the output energy, high power, and not dependent on the grid of chemical lasers have come out. The latest developments of the laser. For example: the free-electron lasers, excimer lasers, and so on have been invented. Free electron laser: April 1977 Stanford University Deacon and other personnel for the development of the first free-electron laser oscillator. The body of this kind of green laser pointer is firm enough.
By a pumped into the vacuum of 5.2 m long copper tube composed of outside around the superconducting wire in order to transverse static magnetic field changes in a cycle of 3.2 cm throughout the pipe axis magnetic induction intensity B_0 0.24 Waters pull. Brass ends with mirrors form a resonant cavity, the cavity length of 12.7 meters, the output mirror reflectivity of 1.5% energy spread is less than 3 \ times10 ^ {-3} 43.5 MeV electron beam from a superconducting accelerator. Excimer laser: the first excimer laser was born in 1970, which uses the strong electron beam excitation of liquid xenon, xenon excimer lasing effect, the laser wavelength of 1720 Angstroms. The battery will be presented as a gift with usa green laser pointer .
Subsequently, the gas xenon molecules, as well as other rare-gas excimer, rare gas-oxide excimer (oxidation krypton, xenon oxide, oxide, argon, etc.), metal vapor - rare gas excimer (xenon sodium, etc.); rare gases single tooth compounds quasi molecules (XeF, argon fluoride, krypton fluoride, chloride, xenon, xenon bromide, iodide, xenon chloride, krypton, etc.), metal gear compounds excimer (mercuric chloride, bromide of mercury, etc.) and metal quasi- molecules (sodium excimer) was born one after another. Excimer laser material has a lower state of exclusion, it can be effectively taking the time, so the low-state absorption and energy loss. The blue ray green laser pointer must be very expensive.
Logos of green laser pointer can be customized
Education and training of the staff of the operating laser, so that he (she) who understand the potential danger that may occur when operating this level laser, and he (she) had the appropriate laser safety training, as well as emergency treatment in danger method . Laser eye injury are irreversible, training and education to understand and master laser safety use is necessary. Engineering and technology management. Management and use of lasers must be provided by professional staff (Staff), without the training and education personnel are not allowed to open the laser machine. Interlock key switch, such as laser trigger system installed to ensure that only with a key to open the interlock switch to trigger the start, pull out the key can not be started. Logos of green laser pointer can be customized.
Placed in the laser room to have a bright light in the bright light environment, the pupil of the eye reduced, to prevent the laser beam into the eyes can reduce the amount of light transmission to the retina. Placed in the height of the laser, the laser beam path should avoid eye level in the normal standing or sitting position, the visual axis can not be parallel with the light exit the eye. The laser should be strictly controlled. Do not store the laser room for no reason a laser beam at the human body, especially the eyes. Because the laser damage to the eyes to be restored is extremely difficult, are permanent damage, and each individual's life, only a pair of eyes, and be sure to always bear in mind. The carton of green laser pointer should be a little larger than green laser pointer .
Before starting laser must be warned the site may harm, and wear safety glasses. Posted on the inside and outside the work area with a strong laser position and laser operating room, laboratory door on the danger mark. Third-level laser of the laser controlled area must be only in certain areas the use of laser equipment. General requirements for the establishment of a doorman and security latch interlock to ensure that outsiders and unprotected personnel shall not enter the controlled area, even if the accident door was open, the laser excitation can immediately stop. Room should be light, leaked in order to prevent harmful laser beam. Set up an emergency switch, making in dangerous conditions can lasers stop firing. A brief introduction to this new type of green laser pointer is given.
The use of lasers must understand the structure of the laser, security protection, and in the third-level laser use license can be issued after examination, the licensed staff are eligible to operate the laser. For non-staff must strictly prohibited and non-work related personnel to enter the laser controlled area. Visitors shall be subject to the permission of the supervisory staff, and to understand the potential dangers of such lasers, and then take the necessary precautions before entering. Non-staff can not be arbitrarily not allowed into the laser control area to open the device. Debug lasers. The debug laser optical system to take strict protection measures, the guarantor eyes are not subject to the original laser beam and mirror reflection beam irradiation. The visual axis and anti-beam coaxial with the original beam and the mirror. The blue violet ray usa green laser pointer will be mainly discussed during the meeting.
Optical instruments to observe the laser beam used as observation binoculars, microscopes, telescopes, like a laser beam, laser increase the possibility of eye damage. Department of non-use of such optical instruments must go through strict security calculations, add filters and proper interlocking of protective equipment, exposure to the the guarantor eye by less than the laser safety standard value. After taking the above measures, the human eye may also be ultra-safe laser irradiation of the standard value, must be based on the wavelength of such lasers, the choice of the optical density of appropriate protective glasses to strengthen the protection of the eyes. green laser pointer is the LED torch.
Placed in the laser room to have a bright light in the bright light environment, the pupil of the eye reduced, to prevent the laser beam into the eyes can reduce the amount of light transmission to the retina. Placed in the height of the laser, the laser beam path should avoid eye level in the normal standing or sitting position, the visual axis can not be parallel with the light exit the eye. The laser should be strictly controlled. Do not store the laser room for no reason a laser beam at the human body, especially the eyes. Because the laser damage to the eyes to be restored is extremely difficult, are permanent damage, and each individual's life, only a pair of eyes, and be sure to always bear in mind. The carton of green laser pointer should be a little larger than green laser pointer .
Before starting laser must be warned the site may harm, and wear safety glasses. Posted on the inside and outside the work area with a strong laser position and laser operating room, laboratory door on the danger mark. Third-level laser of the laser controlled area must be only in certain areas the use of laser equipment. General requirements for the establishment of a doorman and security latch interlock to ensure that outsiders and unprotected personnel shall not enter the controlled area, even if the accident door was open, the laser excitation can immediately stop. Room should be light, leaked in order to prevent harmful laser beam. Set up an emergency switch, making in dangerous conditions can lasers stop firing. A brief introduction to this new type of green laser pointer is given.
The use of lasers must understand the structure of the laser, security protection, and in the third-level laser use license can be issued after examination, the licensed staff are eligible to operate the laser. For non-staff must strictly prohibited and non-work related personnel to enter the laser controlled area. Visitors shall be subject to the permission of the supervisory staff, and to understand the potential dangers of such lasers, and then take the necessary precautions before entering. Non-staff can not be arbitrarily not allowed into the laser control area to open the device. Debug lasers. The debug laser optical system to take strict protection measures, the guarantor eyes are not subject to the original laser beam and mirror reflection beam irradiation. The visual axis and anti-beam coaxial with the original beam and the mirror. The blue violet ray usa green laser pointer will be mainly discussed during the meeting.
Optical instruments to observe the laser beam used as observation binoculars, microscopes, telescopes, like a laser beam, laser increase the possibility of eye damage. Department of non-use of such optical instruments must go through strict security calculations, add filters and proper interlocking of protective equipment, exposure to the the guarantor eye by less than the laser safety standard value. After taking the above measures, the human eye may also be ultra-safe laser irradiation of the standard value, must be based on the wavelength of such lasers, the choice of the optical density of appropriate protective glasses to strengthen the protection of the eyes. green laser pointer is the LED torch.
Tuesday, February 21, 2012
This kind of green lase pointer can be focused to burn matches
He said: "Fortunately, we now manufacture pure glass for optical fiber are strong." Of the experimental glass temperature has only dropped by 0.3 ° C, but when they use fiber instead of glass block, and increase the amount of absorbed laser they done so that the temperature of the specimen cooling temperature of 16 ° C. After that, Epstein and his colleagues use a new pair of mirrors to form a cavity, and their technology to further improve this method and the corresponding expansion. Mirror to a diameter of about 3 cm, Yb-doped glass around on the inside, they can make the ytterbium fluorescence passed, so the energy is very easy to leave. With high power, this kind of green lase pointer can be focused to burn matches.
However, they will reflect the laser beam, the laser speed bounce in the cavity so that the cooling more efficient. Lose energy in the prototype cavity, ytterbium-doped glass to 0.5 watts per second speed. Scientists have calculated that if the cavity to be fine-tuning, its temperature can be cooled to absolute temperature of 60 degrees (about -213 ° C). Epstein is very optimistic, he said to us during the year about to have a real cooler. "Our first market may be space ─ ─ for cooling satellite sensitive detectors and electronic equipment." All the hot object The issue of infrared radiation. green laser pointer has the application of laser advertisement and laser projection.
For example, astronomy infrared detectors with this problem, because the thermal instruments issued by the "noise" to drown the signal from the celestial. Infrared detection equipment cooling is extremely important. So far, the track detector cooling is mainly dependent on the jars of liquefied petroleum gas, it can only be used for several years, to assume a more long-term mission of the satellite with a mechanical heat pumps, the pump of the engine vibration and electromagnetic interference will affect the infrared sensors, these infrared sensors must be carefully protected. Laser cold has no moving parts may be the best choice. green laser pointer is of the outstanding quality.
Paul aerospace industry technology companies in Boulder, Colorado Maude predicted: "The cooling capacity of this cooler soon can now use cryogenic devices comparable." His company is planning to Epstein laser cooler into the space. Although Epstein and Maude is expected to be very optimistic, Gosnell was more cautious. He foresaw that the cosmic rays ─ ─ space high-energy particles and radiation, they are constantly bombarding the satellite which will bring some unexpected problems. He said they may be broken ytterbium or glass rope indiscriminate fine photochemical balance, so that the increase in the proportion of re-conversion of light into that part of the heat absorbed and other issues. usa green laser pointer could serve as the best pointers.
He warned: "actual space applications is still far from enough, it may have for 10 years," but he also said, can be a lot of meaningful research on the physics. About the same time and the initial experiments of Epstein, Imperial College London, a research group also noted that laser cooling, but this is accidental. Chemist the Lang Busi, and Clark found that the yellow fluorescence can be generated by the red laser to the polymer film mixed with Rhodamine dye. Langbu Wales, said: "When the temperature of the polymer film to reduce several times, the yellow fluorescence disappeared. The remote control distance of green laser pointer is no less than 15 meters.
However, they will reflect the laser beam, the laser speed bounce in the cavity so that the cooling more efficient. Lose energy in the prototype cavity, ytterbium-doped glass to 0.5 watts per second speed. Scientists have calculated that if the cavity to be fine-tuning, its temperature can be cooled to absolute temperature of 60 degrees (about -213 ° C). Epstein is very optimistic, he said to us during the year about to have a real cooler. "Our first market may be space ─ ─ for cooling satellite sensitive detectors and electronic equipment." All the hot object The issue of infrared radiation. green laser pointer has the application of laser advertisement and laser projection.
For example, astronomy infrared detectors with this problem, because the thermal instruments issued by the "noise" to drown the signal from the celestial. Infrared detection equipment cooling is extremely important. So far, the track detector cooling is mainly dependent on the jars of liquefied petroleum gas, it can only be used for several years, to assume a more long-term mission of the satellite with a mechanical heat pumps, the pump of the engine vibration and electromagnetic interference will affect the infrared sensors, these infrared sensors must be carefully protected. Laser cold has no moving parts may be the best choice. green laser pointer is of the outstanding quality.
Paul aerospace industry technology companies in Boulder, Colorado Maude predicted: "The cooling capacity of this cooler soon can now use cryogenic devices comparable." His company is planning to Epstein laser cooler into the space. Although Epstein and Maude is expected to be very optimistic, Gosnell was more cautious. He foresaw that the cosmic rays ─ ─ space high-energy particles and radiation, they are constantly bombarding the satellite which will bring some unexpected problems. He said they may be broken ytterbium or glass rope indiscriminate fine photochemical balance, so that the increase in the proportion of re-conversion of light into that part of the heat absorbed and other issues. usa green laser pointer could serve as the best pointers.
He warned: "actual space applications is still far from enough, it may have for 10 years," but he also said, can be a lot of meaningful research on the physics. About the same time and the initial experiments of Epstein, Imperial College London, a research group also noted that laser cooling, but this is accidental. Chemist the Lang Busi, and Clark found that the yellow fluorescence can be generated by the red laser to the polymer film mixed with Rhodamine dye. Langbu Wales, said: "When the temperature of the polymer film to reduce several times, the yellow fluorescence disappeared. The remote control distance of green laser pointer is no less than 15 meters.
It is the 200mW chargeable green ray usa green laser pointer
U.S. scientists have developed a prototype of the laser cooler, they want these coolers can put on the satellite. In recent decades, a technology called Doppler cooling has been using laser cooling material, the use of photonic atoms deceleration. The conversion of energy from atoms to photons make atomic cooling to the absolute temperature of zero to a hundred ten thousandth degrees weak. But only in very small size could be achieved. The idea of using light to make objects cooling German physicist Jin Lin Ximu first proposed in 1929. His idea is that when the emission fluorescence of the material, it will be cold. Some high power green lase pointer has an obvious heating effect.
When molecules absorb light, its electronic stimulated. This new state is unstable, the molecule must lose the excess energy. This can be achieved, permanent chemical changes in molecules (such as open as a key), or molecules to heat up, so that it and the surrounding environment gets hot. Excess energy in the form of light from the molecules. Fluorescence to leave all the energy and absorb more energy, cooling can be achieved. Pick their way is the energy of the photons in the laser beam, so that only those who already have some kind of energy the molecules of the material absorbed by the first of these molecules, "heating". The size of the picture of green laser pointer can be adjusted.
The use of statistical methods can be seen a small part of the molecule is always higher temperature than other molecular substances. When they absorb photons, they are excited to enter a higher level of state. Then fluorescence would molecules in some materials brought lower than their original energy levels, that is more "cool" vibrational. Light to leave the molecules so they contain more energy than the absorbed light, this situation is known as the anti-Stokes fluorescence. Good idea in theory, Princeton Sim, but in practice it has been difficult. The main difficulty is to find a suitable fluorescent materials and fixed it to make all the incident light is absorbed and all fluorescence was released on the "clear" solid. The shooting distance of yellow ray green laser pointer is much shorter.
Abstract: the use of statistical methods can be seen a small part of the molecule is always higher temperature than other molecular substances. When they absorb photons, they are excited to enter a higher level of state. Then fluorescence would molecules in some materials brought lower than their original energy levels, that is more "cool" vibrational. Light to leave the molecules so they contain more energy than the absorbed light, this situation is known as the anti-Stokes fluorescence. Alamos National Laboratory, a research team did for the first time using this method to make a solid cooling. Epstein, Gosnell and their colleagues in high-energy infrared laser to gather in one with the glass substrate and of the ytterbium (Yb3 +) ion "tainted". It is the 200mW chargeable green ray usa green laser pointer .
Specially chosen Yb because of high efficiency fluorescent and electronic structure is simple, so that the energy is absorbed less as an opportunity to thermal motion of the material loss. Epstein group for experiments in 1995 on a matchstick-sized glass, and would be the heat loss rate is 2% of the laser energy, it is able to achieve in the gas using the Doppler cooling efficiency 10,000 times. Gosnell say, so the success of a high degree of purity of the glass matrix, which can be done without scattering or absorption of the laser. Besides, green laser pointer is also fit for the lecturing and teaching field.
When molecules absorb light, its electronic stimulated. This new state is unstable, the molecule must lose the excess energy. This can be achieved, permanent chemical changes in molecules (such as open as a key), or molecules to heat up, so that it and the surrounding environment gets hot. Excess energy in the form of light from the molecules. Fluorescence to leave all the energy and absorb more energy, cooling can be achieved. Pick their way is the energy of the photons in the laser beam, so that only those who already have some kind of energy the molecules of the material absorbed by the first of these molecules, "heating". The size of the picture of green laser pointer can be adjusted.
The use of statistical methods can be seen a small part of the molecule is always higher temperature than other molecular substances. When they absorb photons, they are excited to enter a higher level of state. Then fluorescence would molecules in some materials brought lower than their original energy levels, that is more "cool" vibrational. Light to leave the molecules so they contain more energy than the absorbed light, this situation is known as the anti-Stokes fluorescence. Good idea in theory, Princeton Sim, but in practice it has been difficult. The main difficulty is to find a suitable fluorescent materials and fixed it to make all the incident light is absorbed and all fluorescence was released on the "clear" solid. The shooting distance of yellow ray green laser pointer is much shorter.
Abstract: the use of statistical methods can be seen a small part of the molecule is always higher temperature than other molecular substances. When they absorb photons, they are excited to enter a higher level of state. Then fluorescence would molecules in some materials brought lower than their original energy levels, that is more "cool" vibrational. Light to leave the molecules so they contain more energy than the absorbed light, this situation is known as the anti-Stokes fluorescence. Alamos National Laboratory, a research team did for the first time using this method to make a solid cooling. Epstein, Gosnell and their colleagues in high-energy infrared laser to gather in one with the glass substrate and of the ytterbium (Yb3 +) ion "tainted". It is the 200mW chargeable green ray usa green laser pointer .
Specially chosen Yb because of high efficiency fluorescent and electronic structure is simple, so that the energy is absorbed less as an opportunity to thermal motion of the material loss. Epstein group for experiments in 1995 on a matchstick-sized glass, and would be the heat loss rate is 2% of the laser energy, it is able to achieve in the gas using the Doppler cooling efficiency 10,000 times. Gosnell say, so the success of a high degree of purity of the glass matrix, which can be done without scattering or absorption of the laser. Besides, green laser pointer is also fit for the lecturing and teaching field.
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