| 一种易于制造、较大视场离轴三反光学系统设计 |
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| 引用本文： | 姚罡,黄颖,傅丹膺. 一种易于制造、较大视场离轴三反光学系统设计[J]. 航天返回与遥感, 2010, 31(5): 44-48 |
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| 作者姓名： | 姚罡 黄颖 傅丹膺 |
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| 作者单位： | 北京空间机电研究所,北京,100076;航天东方红卫星有限公司,北京,100094 |
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| 基金项目： | 中国空间技术研究院自主研发课题 |
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| 摘 要： | 介绍了离轴三反光学系统初始结构的设计方法,并用该方法进行离轴三反光学系统设计。用ZEMAX软件设计了一个焦距为1 000mm,F数为10,垂直轨道方向视场为±4.0°,沿轨道方向为6.0°和6.5°的光学系统。结果表明,该光学系统在空间频率71线对/mm处,调制传递函数均大于0.4,且三镜为球面,具有易于制造装调等优点。
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| 关 键 词： | 反射式光学系统 离轴三反 像质 光学设计 空间遥感 |
An Easily Fabricated Unobscured Three-mirror Reflective System with Large FOV |
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| Yao Gang,Huang Ying,Fu Danying. An Easily Fabricated Unobscured Three-mirror Reflective System with Large FOV[J]. Spacecraft Recovery & Remote Sensing, 2010, 31(5): 44-48 |
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| Authors: | Yao Gang Huang Ying Fu Danying |
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| Affiliation: | 1 Beijing Institute of Space Mechanics ＆ Electricity,Beijing 100076,China)(2 DongFangHong Satellite Co.Ltd.,Beijing 100094,China) |
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| Abstract: | The design principle of the unobscured three-mirror system was introduced and the off-axis three-mirror reflective optical system was designed.The optical system was designed by ZEMAX software,which has a focal length of 1000mm,F number of 10,and the field of view（short for FOV） is±4° across the track,6°and6.5°along the track.It showed that the MTF is higher than 0.4 at 71 lp/mm.Because the tertiary mirror is sphere,the system has the advantages of easier fabrication,alignment and test. |
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| Keywords: | Reflective optics Unobscured three-mirror reflective system Image quality Optical design Space remote sensing |
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