摘要
依据热补偿理论,在基于热差互补原理的无热差光学系统材料选取方法的基础上进行了高精度星敏感器光学系统设计和无热化分析,系统工作波段0.5~0.8μm,F数为2,视场角为10°,温度范围-10℃~30℃,通过分析像面移动量、能量集中度曲线和各色传递函数曲线可以看出,光学系统在要求温度范围内性能稳定,基本可以实现无热化.
Based on the compensation theory of thermal dispersion,an actual high-precision athermal star tracker system was designed and evaluated.Optical materials are selected according to the passive athermalizing principle.The system has the following parameters： waveband range 0.5～0.8μm,F number 2,field of view 10°,temperature range-10℃～30℃.The defocus,energy curves and modulation transfer function（MTF） of the lenses are given as examples.It is shown that the athermal optical system can work steadily with high optical quality in the required temperature range.
出处
《北京理工大学学报》
EI
CAS
CSCD
北大核心
2010年第2期223-225,230,共4页
Transactions of Beijing Institute of Technology
基金
教育部长江学者和创新团队发展计划项目(IRT0606)
关键词
光学设计
空间光学
无热化
星敏感器
optical design
space optics
athermalization
star tracker
