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绪言越南战场已实际证实了火控用激光测距机与半主动制导精密投掷弹用激光照明器的效能。第一台激光测距机使用红宝石激光器,但是红宝石激光器重复频率低,不可能用它做照明器。红宝石激光器的又一缺点是可见光,当然会被人眼察觉。掺钕钇铝石榴石(YAG:Nd~(+3))激光器能达到较高的脉冲重复频率,可用于照明器及测距机,所以很快就取代了红宝石激光器。经过不断研究改进,这些器件终于轻到了不仅做成便携式照明器,而且还做成可以像望远镜一样使用的测距机。目前有许多种测距机与照明器已经投产或者即将投产。大约十年前,就有人考虑了把CO_2激光器用于测距机与照明器的可能性。与YAG:Nd~(+3)器件一样,此项工作最初也是着眼于测距机。目前,器件已发展到有三种模型(即霍尼威耳
Introduction Vietnam battlefield has actually confirmed the effectiveness of fire control laser range finder and semi-active guided precision throwing laser light illuminator. The first laser rangefinder uses a ruby laser, but the ruby laser has a low repetition frequency and can not be used as a luminaire. A further disadvantage of ruby lasers is visible light, which of course can be perceived by human eyes. Neodymium-doped yttrium aluminum garnet (YAG: Nd ~ (+3)) lasers can achieve high pulse repetition frequency, can be used for illuminator and range finder, so the ruby laser will be replaced soon. After continuous research and improvement, these devices finally light to not only made into a portable illuminator, but also made into a telescope can be used like a rangefinder. There are many types of range finders and luminaires that are either already in production or coming into production. About a decade ago, someone considered the possibility of using CO 2 lasers for range finders and luminaires. As with YAG: Nd ~ (+3) devices, this work was also initially focused on range finders. At present, the device has been developed to have three models (ie Honeywell