How to distinguish the power of the handheld laser pointer?
How to tell whether the power of the handheld laser pointer is at the level of 5 milliwatts? Here is a little trick to tell the user. If a laser pointer uses a button battery, its power may be within the acceptable range of 5 milliwatts, but if the laser pointer uses AA or AAA batteries, it may be illegally sold. The product has potential safety hazards.
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How to distinguish the high power of the blue laser pointer? High-power laser pointers usually use some vocabulary to emphasize when they are sold, such as powerful, super, military, military grade, super light, high energy, lithium battery, how to buy a high-power laser pointer can refer to these words. But be careful. Laser pointers on the market almost exclusively use laser diodes (LD) in the private sector because of their small size, low threshold voltage, safety, and low cost. Generally speaking, it is recommended to use the green 532nm laser pointer in the infrared LD 1064 of the KDP crystal multiplier, and then use the red LD 635nm red laser pointer to make the collimating lens group and the light highly parallel, the IR cut filter and the collimating lens group are emitted The green light is emitted in highly parallel rays.
2021-10-15 08:37:35
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