How bright is a green laser pointer at night?
Fortunately, not all green laser pointer are dangerous. Unfortunately, it's not always easy to decide which is safe. Regulations set by the U.S. Food and Drug Administration require that most laser products carry appropriate warning labels, but that information may be missing or inadequate. According to the American Academy of Ophthalmology, laser output of more than 5 milliwatts can cause immediate and severe retinal or skin damage. The laser pointer is improperly operated. Adjusting the laser designator for a long time creates intense heat in the laser tube, increasing its temperature. Otherwise, the laser module may burn out. You need to replace the laser module.
Tags
Instrument
We propose the following criteria to determine if a laser designator is safe. The apparent brightness of laser beam spot depends on laser power, surface reflectance and color response of human eye. For the same amount of light power, green lasers appear brighter than other colors because the human eye is most sensitive to low light levels in the green region of the spectrum (wavelengths 520-570 nm). The sensitivity of red or blue wavelengths will be reduced. A direct beam of light from a laser pointer can harm unprotected eyes. Even with low power lasers, improper use can cause glare, flash blindness and residual effects. Damage caused by pointing a high powered laser pointer directly at a human eye has been well documented.
2021-12-15 11:09:17
Your Answer: