The laser pointer should be properly labeled
As power increases above 5 milliwatts, the time margin for safe exposure decreases, and permanent eye and skin damage can quickly occur. However, the output power of the green laser pointer is not obvious to the user. Laser Pointers often lack proper labels or are mislabeled, and a single pointer cannot be tested unambiguously by the average consumer. The FDA does offer advice to help consumers identify which laser products may be dangerous and how to safely use the device. The agency is prioritizing laser safety awareness, as a new study shows that even the briefest exposure to a high-powered blue handheld laser pointer 5000MW product can cause serious eye injuries. If you shine an environmentally friendly laser pointer into the sky, you can comply with beams of light several meters above, except on extremely readable nights when humidity is near zero. For you and anyone standing around you, it feels like a beam of light ends up on the giant star or planet you're aiming at. This makes it very convenient to show someone the selected object. Just factor in the laser and say, "Be there!"
Tags
Material
The researchers concluded that the widespread use of these devices, which are usually sold as toys, could be contributing to the epidemic of eye injuries, according to a recent study published in ophthalmology, the journal of the National Academy of Sciences. An eye. If a laser with a power output of less than 5 milliwatts is aimed at someone's eye, the person can blink or turn away without damaging the eye. However, the eye's natural protective mechanisms -- such as the blink reflex -- are ineffective against lasers with output power exceeding 5 milliwatts, and severe retinal damage can occur even after momentary exposure. Compared to colorful mild bulbs that consume only a few dozen to a whole beam of watts rather than milliwatts, 5 mW feels like little or nothing. However, high powered laser Pointers tend to be highly concentrated in a very narrow beam. Moreover, the beam is extremely collimated, meaning that even a kilometer apart, the beam is no more than a meter. For stargazing applications, 5-MW eco-friendly lasers are absolutely sufficient
2021-12-20 11:55:48
Your Answer: