The purpose of the green laser pointer
The 808nm infrared laser is used to excite the nonlinear crystal to generate 1064nm infrared light, and then to generate 532nm green light after frequency doubling, which is a solid-state laser. Some green lasers work in pulsed or quasi-continuous mode to reduce cooling problems and extend battery life. The announced green laser, which does not require frequency doubling, has higher efficiency. Even low-power green light can be seen at night due to the Rayleigh scattering of atmospheric molecules. This green laser pointer is often used by astronomy enthusiasts to point stars and constellations. The green laser pointer can have a variety of output powers. 5mW is the safest to use and can be seen under darker lighting, so no stronger power is needed for pointing purposes.
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The advantages of the green laser pointer. Compared with ordinary red, blue, and yellow laser pointers, this green laser pointer is not only more special in color, but also because green is more condensed and more conspicuous, so in the process of use, its light beam It is brighter than the red Laser pointer and the blue laser pointer. Compared with other types of laser pointers on the market, Green laser pointer have relatively simple raw materials, and the production process is not simpler than that of red laser pointers. Therefore, the price is relatively cheap and it has a very good competitive advantage. Compared with laser pointers of other colors, the light beam of the green laser pointer is less harmful to the eyes and is easier to gather light. Since the spectrum of the human eye in the green region is the most sensitive compared to the spectrum of other color regions, it looks brighter and has a better display effect when used.
2021-09-15 12:32:50
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