星模拟器光学系统的设计

Design of Optical System for Star Simulator

星模拟器是星敏感器的地面测试设备。由星敏感器的光学系统要求,确定星模拟器的光学系统的技术参数,通过分析,选择远摄型物镜光学结构,为进一步减小二级光谱,把正光组由原来的正负双分离,再加入一胶合面,后组由正负双分离透镜组成负透镜组,经像质平衡,使全谱段最大平行角度误差≤10"。

A star simulator is a ground testing device for a star sensor, and the technical parameters of its optical system is determined in accordance with the requirements for the optical system of the star sensor. A telephoto lens was chosen. Through analysis, in order to reduce secondary spectrum, a doublet lens is substituted for the positive element in the front positive lens which contains two separated ones, the back negative lens consists of two separated elements (a positive one and a negative one). Through image quality balance, the biggest error of the parallel angle is made less than 10'.