Laser Pointer is widely used in the daily use of the teacher

 When the lecturer reports the lecture,  Laser Pointer  is helpful.
The biological effects of the laser. 3A class of semiconductor laser according to its wavelength, power and power density, the main role of thermal effects and bio-stimulating effect. Laser irradiation of biological tissue, the laser photons role in the biological molecules, molecular motion exacerbated by increased frequency of collisions with other molecules, either directly or indirectly lead to biological molecular rotation, vibration peace movement increased, resulting in thermal effects. 3A semiconductor laser wavelength in the red and infrared spectra, penetrate deeper, the local temperature of 38-42 ℃. Biostimulation effect. When the low-power laser irradiation of biological tissue. The customer can casually go into the audience and talk or discuss with the listener or audience with help of  Laser Pointer .
Not biological tissue is a direct result of irreversible damage, but from some ultrasound, acupuncture, moxibustion, and other physical factors of the mechanical or thermal stimulation is similar to the biological effect, known as laser biostimulation effect. Laser thermal effect, photochemical reactions, mechanical and biological stimulation often occur simultaneously, not exist in isolation, are the results of the combined effect of the treatment and diagnosis of many diseases, but under certain conditions, a biological effect as the main performance. Typical medical applications. 3A class of semiconductor laser treatment machine.  Laser Pointer  is widely used in the daily use of the teacher, lecturer and presenter.
The mechanism of more mature and more clinical research data to support the medical applications extravascular irradiation alleviate hyperlipidemia, hyperviscosity, clinical symptoms or analgesia. The analgesic effect of U.S. FDA approved laser biostimulation of the intended use of therapeutic products. Products should be applicable to the relevant standards. Common standards are listed below: GB 2894-2008 Safety signs and their use guidelines. GB 7247.1-2001 Safety of laser products - Part 1: Equipment classification, requirements and user guide. GB 9706.1-2007 Medical electrical equipment - Part 1: General requirements for safety. GB / T 11748-2005 carbon dioxide laser treatment machine. GB 12257-2000 helium-neon laser therapy General technical conditions. Compared with the infrared technology of wireless presenter  Laser Pointer , the radio frequency of wireless presenter laser pointer can transmit the signal in the whole 360 degree direction.