Intrinsically safe laser pointer can be used safely
The lethality of a laser is proportional to the amount of energy it can enter, usually measured in milliwatts. In the United States, the Food and Drug Administration requires all laser products to be less than 5 mW, some even less than 1 mW. But they're not too expensive. Google a cheap red laser pointer and you can get a 5 milliwatt laser for less than $2. For a high powered laser pointer to achieve lethal strength, it should first be hot enough to burn tissue. A laser of about 1KW can burn a person's eyes to the brain in a certain amount of time. Since it takes a certain amount of time, it means that the "killer" can't leave quickly, and the person killed won't run away. At the same megawatt power, the green laser is five to seven times brighter than other lasers.
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Wavelength
Researchers are interested in diamond-structured lasers because they can transmit power over long distances and are not easily interfered with. Because laser can transmit energy over a long distance, it is widely used in various fields. This research may be possible in laser ranging, space communications or laser weapon applications. Since many lasers are activated at 100 MW, visibility at night is very clear. Daytime use, but must use higher power. 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.
2021-12-03 10:21:12
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