分孔径红外偏振成像仪光学系统设计

王琪; 梁静秋; 梁中翥; 吕金光; 王维彪; 秦余欣; 王洪亮

doi:10.3788/CO.20181101.0092

Volume 11 Issue 1

Feb. 2018

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Chinese Optics > 2018 > 11(1): 92-99.

WANG Qi, LIANG Jing-qiu, LIANG Zhong-zhu, LV Jin-guang, WANG Wei-biao, QIN Yu-xin, WANG Hong-liang. Design of decentered aperture-divided optical system of infrared polarization imager[J]. Chinese Optics, 2018, 11(1): 92-99. doi: 10.3788/CO.20181101.0092

Citation:

WANG Qi, LIANG Jing-qiu, LIANG Zhong-zhu, LV Jin-guang, WANG Wei-biao, QIN Yu-xin, WANG Hong-liang. Design of decentered aperture-divided optical system of infrared polarization imager[J]. Chinese Optics, 2018, 11(1): 92-99. doi: 10.3788/CO.20181101.0092

Citation:

WANG Qi, LIANG Jing-qiu, LIANG Zhong-zhu, LV Jin-guang, WANG Wei-biao, QIN Yu-xin, WANG Hong-liang. Design of decentered aperture-divided optical system of infrared polarization imager[J]. Chinese Optics, 2018, 11(1): 92-99. doi: 10.3788/CO.20181101.0092

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Design of decentered aperture-divided optical system of infrared polarization imager

doi: 10.3788/CO.20181101.0092

1.
State Key Laboratory of Applied Optics, 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

Funds:

National Natural Science Foundation of China 61575193

National Natural Science Foundation of China 61376122

National Natural Science Foundation of China 61027010

National Natural Science Foundation of China 61627819

Jilin Provincial Science and Technology Development Plan 20150520101JH

Jilin Provincial Science and Technology Development Plan 20150101049JC

Jilin Provincial Science and Technology Development Plan 20150204072GX

Jilin Provincial Science and Technology Development Plan 20130206010GX

Changchun Science Development Plan 2013261

Open Fund of State Key Laboratory of Applied Optics, CIOMP

More Information

Corresponding author: LIANG Zhong-zhu, E-mail: liangzz@ciomp.ac.cn;
Received Date: 11 Aug 2017
Rev Recd Date: 13 Oct 2017
Publish Date: 01 Feb 2018

Abstract

Abstract

In order to identify the target with little temperature difference in complicated and disguised infrared background, a decentered aperture-divided polarization imaging system is introduced in this paper. The design of decentered aperture-divided imaging system and relay imaging system adopted in decentered aperture-divided polarization imaging system are also studied. Firstly, the working theory and optical structure of the system are introduced according to the Stokes vectors. Secondly, the parameters of the optical system such as the eccentricity are calculated under the requirements of the structural parameters of the existing detectors in the laboratory, and silicon and germanium are selected as the lens materials. According to these parameters, both the structure of aperture-divided imaging system and that of relay imaging system are determined on this basis. Then the off-axis eccentric multi-structure design method is used to optimize the initial structure. The transformation method from ordinary infrared objective to image-side telecentric structure with real entrance pupil is studied. Finally, the overall system matching of aperture-divided imaging system and relay imaging system is completed. The results show that the overall system modulation transfer function(MTF) at Nyquist frequency of the detector of 17 lp/mm is greater than 0.6, which can meet the system design requirements. The structure introduced in this paper can detect the real-time polarization of the target, and possesses the advantages of compact structure.
- polarized imaging,
- mid-infrared,
- aperture-divided,
- optical design

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References(17)

References

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