中波红外长焦距折反光学系统设计

虞林瑶; 魏群; 张天翼; 王超; 韩景壮; 朱瑞飞; 宋宝奇; 贾宏光

doi:10.3788/CO.20150802.0234

Volume 8 Issue 2

Apr. 2015

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Article Contents

Chinese Optics > 2015 > 8(2): 234-240.

YU Lin-yao, WEI Qun, ZHANG Tian-yi, WANG Chao, HAN Jing-Zhuang, ZHU Rui-fei, SONG Bao-qi, JIA Hong-guang. Design of long focal infrared catadioptric optical system for multi-guided system[J]. Chinese Optics, 2015, 8(2): 234-240. doi: 10.3788/CO.20150802.0234

Citation:

YU Lin-yao, WEI Qun, ZHANG Tian-yi, WANG Chao, HAN Jing-Zhuang, ZHU Rui-fei, SONG Bao-qi, JIA Hong-guang. Design of long focal infrared catadioptric optical system for multi-guided system[J]. Chinese Optics, 2015, 8(2): 234-240. doi: 10.3788/CO.20150802.0234

Citation:

YU Lin-yao, WEI Qun, ZHANG Tian-yi, WANG Chao, HAN Jing-Zhuang, ZHU Rui-fei, SONG Bao-qi, JIA Hong-guang. Design of long focal infrared catadioptric optical system for multi-guided system[J]. Chinese Optics, 2015, 8(2): 234-240. doi: 10.3788/CO.20150802.0234

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Design of long focal infrared catadioptric optical system for multi-guided system

doi: 10.3788/CO.20150802.0234

1.
Changchun Institute of Optics, Fine Mechanics and Physics, Chinese Academy of Sciences, Changchun 130033, China;
2.
University of Chinese Academy of Sciences, Beijing 100049, China

Received Date: 17 Oct 2014
Accepted Date: 15 Jan 2015
Publish Date: 25 Apr 2015

Abstract

Abstract

In order to meet the requirement of compact structure and athermal stability with wide temperature range, a middle infrared catadioptric optical system is designed. According to the requirements of other guided modes, the focal length and aperture of the primary mirror is fixed. The height of the principal ray reaching the relay system can be reduced. The aperture of the lens can be decreased, which will lower the cost. A compact infrared imaging system with a wavelength 3.7-4.8 μm, focal length <em>f</em>=300 mm, <em>F</em> number 2, is presented in this paper. The results show that the system performs well and the optical transfer function of each field is close to the diffraction limit. Between -50-70℃, passive optical athermalization can be realized in this system. For this system, the tolerance analysis and some ways of resisting the stray light are presented at last. It shows that the MIR system meet the demand of actual processing and application.
- infrared system,
- catadioptric system,
- athermalization

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References(11)

References

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