机载激光目标指示器已有十年历史,在越南丛林中已证明了它们的有效性.然而,设计和生产步兵使用的激光指示器出现了新的困难.因为地面指示器不象机载仪器,它必须便于携带,因而既要小型又要重量轻.另外,它必须有足够远的测距能力,以便允许使用者留在距敌人火力较远、因而比较安全的 Airborne laser target indicators have been around for ten years and have proved their effectiveness in the jungles of Vietnam, however, designing and producing laser pointers for infantry has presented new difficulties as ground-based indicators do not resemble onboard instruments , It must be portable and therefore small and lightweight, and it must have far-ranging capability to allow the user to stay far from the enemy’s fire and thus safer