| TMA相机中抑制杂散光的结构优化分析 |
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| 引用本文： | 王丹艺,张国玉,廖志波.TMA相机中抑制杂散光的结构优化分析[J].光学仪器,2014,36(3):273-278. |
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| 作者姓名： | 王丹艺 张国玉 廖志波 |
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| 作者单位： | 长春理工大学 光电工程学院, 吉林 长春 130000;北京空间机电研究所, 北京 100076;长春理工大学 光电工程学院, 吉林 长春 130000;北京空间机电研究所, 北京 100076 |
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| 摘 要： | 针对离轴三反(TMA)结构相机消杂光问题,提出结构优化设计方法,即采用三种措施对关键表面结构进行优化设计,在弱化或遮挡杂散光路的基础上开展精细化仿真,降低关键表面的双向反射分布函数(BRDF)。结果表明:在关键表面添加挡光板组的方式可以获得极佳的抑制效果,降低消光漆的使用要求,减少工艺难度。
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| 关 键 词： | TMA系统 杂散光分析 双向反射分布函数(BRDF) |
| 收稿时间： | 2003/12/4 |
Optimal designing of stray light for TMA camera |
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| WANG Danyi,ZHANG Guoyu and LIAO Zhibo.Optimal designing of stray light for TMA camera[J].Optical Instruments,2014,36(3):273-278. |
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| Authors: | WANG Danyi ZHANG Guoyu and LIAO Zhibo |
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| Affiliation: | Changchun University of Science and Technology, Changchun 130000, China;Beijing Institute of Space Mechanics & Electricity, Beijing 100076, China;Changchun University of Science and Technology, Changchun 130000, China;Beijing Institute of Space Mechanics & Electricity, Beijing 100076, China |
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| Abstract: | There are serious phenomena of stray light in the off-axis three-mirror (TMA) camera. In this paper, three methods of critical surface optimization are proposed. The stray light is suppressed through baffling light path and reducing bidirectional reflectance distribution function (BRDF) of critical surface by simulation. The results show that there are obvious effects on suppressing stray light by baffle structure of stray light on critical surface. This method can reduce requirement of extinction paint and difficulty of processing. |
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| Keywords: | off-axis three-mirror optical(TMA)system stray light analysis bidirectional reflectance distribution function(BRDF) |
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