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在轰炸瞄准具、激光测距仪、红外探索跟踪装置中,往往借助反射棱镜或平面反射镜绕两个互相垂直的轴的转动,来实现瞄准线(或是激光束等)在方位或俯仰方向上的扫描(此时反射棱镜或平面反射镜基本上都是安置在乎行光路中)。瞄准线在通过绕轴转动的反射棱镜或平面反射镜以后,其反射光线在空间的运动轨迹可利用作图法、向量代数法、向量四元数和矩阵求解。但是用作图的方法求出反射光线的运动轨迹比较困难,
In the bomber sights, laser range finder, infrared exploration and tracking device, often by means of reflective prism or plane mirror around two mutually perpendicular axis of rotation, to achieve line of sight (or laser beam, etc.) in the azimuth or pitch direction On the scan (at this time the reflective prism or plane mirror are basically placed in the light line). The line of sight of the line of sight of the reflected ray can be used as a graph method, vector algebraic method, vector quaternion and matrix to solve the locus of its reflected light in space after being reflected by a reflecting prism or a plane reflecting mirror which is rotated around the axis. However, it is difficult to find the trajectory of reflected light by using the method as a graph,