The pointers favored by stargazers use a neodymium diode laser pointer and emit a green beam at a wavelength of 532 nanometers. At a given power setting, such lasers appear much brighter than the more common diode lasers that produce a red beam at wavelengths longer than 630 nm.
Exposure to a laser-pointer beam could have a disastrous effect not only on a pilot but also on a person operating machinery or driving a car or truck. There have already been several reports of laser-related accidents of this type; fortunately, none have involved fatalities. To help keep it that way, we offer the following safety tips for amateur astronomers and anyone else using a laser pointer.
NIST is a non-regulatory agency with decades of experience providing industry, research and military agencies with gContinue Reading
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