How far can a laser beam go?
Lasers are very powerful tools, and in the wrong hands (I'm watching you Vader) can cause a great deal of damage and destruction. Thankfully, in the United States, the FDA/CDRH (Food and Drug Administration/Center for Devices and Radiological Health) has classified lasers to protect people from irreparable harm to themselves or others. For simplicity, the categories have been listed under hazards and are numbered I, II, III and IV. Class III green laser pointer are the most powerful laser class and can be legally used on laser designators! Class III lasers must have a power of less than 5mW, with red beams up to 1,500 feet away. Avoid direct exposure to class III lasers as it can cause irreparable damage to the eyes! At this power level, there is little or no risk of skin exposure. Almost all laser Pointers manufactured by Alpec fall into this class III range, providing you with the maximum power and range legally available on the market today! Laser colors vary within the range of perception.
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The 532nm green laser pointer is the brightest color the human eye can see. When it comes to daytime visibility, you'd expect it to be paired with a green beam of light. At the same megawatt power, the green laser is five to seven times brighter than other lasers. 200mW is the starting point for the light beam that can be seen during the actual day. The higher the power of the high powered laser pointer, the better visibility. For other applications, like demos, you can go for something less powerful, because no doubt you'll be using lasers on a blackboard or whiteboard projection screen, so you can be lighter. No matter where you are directly facing the sun, if you are unsure, it makes more sense to use high power than low power. At the same intensity, green will be the brightest laser beam color, and 200mW is the lowest starting point for outdoor use.
2021-12-20 11:58:35
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