How is the laser pointer in the US market?
The wavelength of the light emitted by the green laser pointer laser pointer is 532nm, which belongs to Class IIIB. Use section 2 of AAA battery. The light of the green laser is slightly stronger, which is more harmful to the eyes, and the higher the output, the greater the harm. Usually, 5mw is often used. In the US market, a 5mw laser pointer is acceptable, but if it exceeds 5mw, it cannot be used without approval. At home, it is not so strict. Therefore, special care must be taken during use. Do not irradiate eyes and fragile parts! It is also important to be careful that the laser light enters your eyes due to reflections. Laser pointers that can adjust the focus of the green light usually also have a protection switch.
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Working substance: The working substance of a solid-state laser is composed of optically transparent crystal or glass as a matrix material and doped with activated ions or other activating substances. This kind of working substance should generally have good physical-chemical properties, narrow fluorescence spectrum, strong and wide absorption band and high fluorescence quantum efficiency. There are many types of lasers. It can be classified from several aspects such as high power laser pointer working material, excitation mode, operation mode, output wavelength range, etc. The following is a comprehensive introduction to the principles and applications of nine more contacted lasers. Many people consider using laser diodes-some may consider using a completely new system, while others just want to replace the old gas laser in their products. The problem lies in the variety of choices, because there are many available laser diodes, and for engineers and sales experts, the correct choice may take several days.
2022-01-06 11:43:16
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