Laser since the 20th century, following after the atomic energy, computers, semiconductors, the human class one major invention, known as the "knife", "standard", "the brightest light" and "exotic laser . " Laser enable people to effectively use advanced methods and means unprecedented, unprecedented effectiveness and results, thus contributing to the development of productive forces. History of laser applications since the advent of 1960 the world's first laser, the laser family has entered the era of colorful flowers are blooming. Some even thought that all the material may be made of the laser medium, constitute the laser. Third, the status of laser applications. It adopts the CR2 battery as the power supply.
At present, the laser is widely used, can be said to have penetrated into various fields of production, national defense, scientific research, medical and life. For example, in recent years laser surgery has been in medicine widely used in brain surgery surgery, the doctor without the knife, but the use of focused laser point to needle the size of the surgery, the patient can effectively eliminate the nerve lesions, but also to avoid operating around the nerve. At present, it has been using lasers to come up with completely different from traditional photography, holography, laser fiber-optic communications and space-based communications. Laser application in life. Laser printers: the use of toner in a printer of paper and imaging. The customer should protect themselves from being radiated by the laser including green laser pointer .
Its working principle is mainly a control laser beam laser printer drum, through the opening and closing control of the laser beam, when the scroll of paper in the drum between the ups and downs of the laser beam in the drum with a charge image area, the toner inside the printer will be charged to attract and attached to the paper, the formation of the text or image graphics. Laser Mouse: Optical mouse can be mainly composed of four parts of the core components are light-emitting diode, the lens components, optical engine and the control chips. When they use or adopt green laser pointer as their useful and practical tool.
Direct laser cleaning: laser dry cleaning method, using pulsed laser radiation decontamination; laser + liquid film, that is first deposited a layer of liquid film on the substrate surface, and then use the laser so that the liquid film explosion decontamination, and so on. 22, military laser applications due to the laser 10 billion times higher surface brightness than the sun, and the laser's own advantages, the laser has great potential in the military field. According to operational use of laser weapons are generally divided into the two classes of tactical laser weapons and strategic laser weapons. Tactical laser weapons: based on the laser energy is used to direct destruction of enemy personnel and destroyed the equipment of enemy armed. Combat distance is generally up to 20 km. Customers gaze the star they want to observe through green laser pointer .
Such weapons have laser guns and laser cannons, they can send a strong laser beam to strike the enemy. Strategic laser weapons: ICBMs, to attack thousands of kilometers away in space communications and reconnaissance satellites. November 1975, the two reconnaissance satellites over Siberia by the former Soviet Union's "anti-satellite ground-based laser weapon hit, becoming a" blind ". 3, laser applications in medical laser application in medicine is divided into two broad categories: laser diagnosis and laser treatment, the former to the laser as an information carrier, the latter laser as an energy carrier. Over the years, laser technology has become an effective means of clinical treatment, is now the key technology of the development of medicine. green laser is for irradiation and protection purpose.
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