掺钕钇铝石榴石激光测距机是目前外军已广泛采用的光电装备。但是这种测距机的发射波长是1064纳米,它对人眼是不可见的,但能射入眼睛,损伤视网膜。根据德国激光应用安全标准,这种激光测距机被列为3B级激光产品。对于这类产品,几公里以内都属于对人眼非安全范围,应避免人眼被其照射。这对军事训练十分不利。因此,国外正在积极开发对人眼安全的测距机。 Neodymium-doped yttrium aluminum garnet laser range finder is the foreign military has been widely used in optoelectronic equipment. However, this rangefinder emission wavelength is 1064 nm, it is not visible to the human eye, but can enter the eyes, damage the retina. According to the German laser application safety standards, this laser rangefinder is classified as Class 3B laser products. For such products, within a few kilometers belong to the human eye is not safe, should avoid the human eye is irradiated. This is very unfavorable for military training. Therefore, foreign countries are actively developing eye-safe range finder.