Stability of green laser pointer power
The Green laser pointer is manufactured by a high-power laser diode (laser diode) through a crystal conversion and frequency doubling process. The spectral wavelength is 532nm, which is just the most easily distinguishable band for human vision, plus strong power (>5mW), beam Concentrated, so no matter how wide the conference hall is, how bright the projector is, or even directly projected onto or indicated on the plasma display, you can clearly see the green light spot. When the indoor lighting is dim, you can also see the green laser guiding beam, which is very clear and eye-catching.
Tags
Technology
Laser eye damage has the most serious impact on the human body. The human eye is like a very sophisticated camera that grows inside the human body. It receives 70% of the information from the body from the outside of the eye. Laser eye damage can affect different parts of the eye. There are three mechanisms of laser damage to the eyes: impact effect, thermal effect and radiation effect. Different laser wavelengths have different effects on the eyes, and the consequences are also different. 1064nm infrared light is generated by the 808nm infrared laser nonlinear crystal excitation wavelength, and then 532nm green light is generated by a multiplier, which is a solid-state laser. Some high-power green lasers work in pulsed or quasi-continuous mode to reduce cooling problems and extend battery life. SHG green lasers do not have to be more efficient. Even at night, the low-power green Rayleigh scattering of air molecules can be seen. These green laser pointers are often used by astronomers to show stars and constellations. Among the high-power green laser pointers, 5mW (IIIA) is the safest to use. It can be found even in low light and does not require a more powerful power supply to display.
2021-09-14 11:47:11
Your Answer: