简单地说,本专利所述是个适于机载的光学搜索头。构成此搜索头的是三个反射镜,它们相隔120°装在一根转轴上而可以转动。每个反射镜排列成可依次扫过120°的扇形面,也就是说,当一个反射镜完成了扫掠将要离开扇形面时,下一个反射镜就将要在另一端进入此扇形面。光学头为了能在其转轴上转动而由万向悬架环支承,并由电动机带动。万向悬架环由轭架支承,可以在垂 Briefly described, this patent describes an optical search head suitable for airborne applications. The three heads forming the search head are mounted on a shaft at intervals of 120 ° and can be rotated. Each mirror is arranged to sweep through a fan of 120 ° in turn, that is, when one mirror is swept to leave the fan, the next one will enter the fan at the other end. The optical head is supported by the gimbal suspension ring so as to be able to rotate on its rotation axis and is driven by a motor. The universal suspension ring is supported by the yoke and can be suspended