角锥棱镜的入射角及有效反射面积分析

Analysis on the Maximum Incident Angle and Effective Reflection Area of Cube Corner Retro-Reflector

摘要:

基于角锥棱镜的基本结构及定向反射的光学特性, 证明了同一光束出射点与入射点的对称关系以及不同入射光束出射点与对应顶点投影点的偏移量关系。推导出不同入射条件下角锥棱镜最大入射角及有效反射面积的理论计算方法, 并给出最大入射角随方位角和折射率变化的规律图线及有效反射面积随入射角、方位角、折射率变化的规律图线。研究为角锥棱镜阵列的有效反射面积、回波能量的计算、误差分析等提供理论基础, 且对正确设计使用角锥棱镜具有重要的理论指导意义。

Abstract:

Based on the structure of the cube corner retro-reflector (CCR) and the optical properties of directional reflection, it is demonstrated the symmetry relationship between emergent point and the incident point of the same beam, and the offset relationship between projection point of vertex of a CCR and emergent point of different beams. It deduces the formula for calculation of the maximum incident angle and the effective reflection area of a CCR with different incident conditions, appearing law graphs of the maximum incident angle changing with different azimuth angle and refractive index and the effective reflection area changing with different incident angles, azimuth angles and refractive indexed.