温度变化导致航天相机光学系统像面位移的研究  

Study on the image shifting by temperature changing of the optical system in an aerospace camera

作　　者：王红[1] 韩昌元[1] 

机构地区：[1]中国科学院长春光学精密机械与物理研究所,吉林长春130022

出　　处：《光学技术》2003年第6期738-740,共3页Optical Technique

摘　　要：温度变化导致的像面位移会影响航天相机光学系统的成像质量。根据高斯光学理论,推导出了温度变化时的相机光学系统的像面位移公式,确定了温度敏感性最低的主、次反射镜的材料及与之相匹配的镜筒材料。最后计算和比较了在不同温度变化时的光学系统的传递函数。The image shifting by temperature changing has an effect on the quality of the optical system. The image shifting formula of the camera optical system as the temperature changing is reduced by using Gauss law.The optical materials which have the least temperature sensitivity and the mounting materials to match the optical material are determined. The modulation transfer function (MTF) of optical system at different temperature is calculated and compared.

关 键 词：航天相机 光学系统 像面位移 温度 反射镜 镜筒 

分 类 号：V445.8[航空宇航科学与技术—飞行器设计]