Design of off-axis three-mirror optical system with wide field of view based on transfer matrix

Wang Yunqi; Liu Weiqi; Zhang Daliang; Meng Xiangxiang; Kang Yusi; Wei Zhonglun

doi:10.3788/IRLA201645.0418003

To the problem that off-axis three-mirror optical system has narrow field and complicating initial structure solving process, a method by using optical transfer matrix to solve initial structure was proposed, the focus length and rear cut-off distance of three-mirror system was deduced, then an initial structure parameter of three-mirror system with aperture stop on secondary mirror was given. High order aspheric surface was used to increase system design variance, and making off-axial optimization design to coaxial system based on optical design software ZEMAX, finally got an off-axis three-mirror optical system with wide rectangle field of view 172, focus length of 1 440 mm, F number of 4.8. The system has three high order aspheric optical elements, it can satisfy the requirement of high resolution and large field, the MTF is more than 0.6 at 50 lp/mm, approaches to the diffraction limitation. The designed result shows that the system can be used in space of imaging system with Timed Delay and Integrated Charge-couple Device(TDI-CCD), can expand the ground coverage of system obviously, and achieves high information retrieval efficiency.

Design of off-axis three-mirror optical system with wide field of view based on transfer matrix

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: 2015-07-05

Rev Recd Date: 2015-08-03

Publish Date: 2016-04-25

Key words:

Abstract: To the problem that off-axis three-mirror optical system has narrow field and complicating initial structure solving process, a method by using optical transfer matrix to solve initial structure was proposed, the focus length and rear cut-off distance of three-mirror system was deduced, then an initial structure parameter of three-mirror system with aperture stop on secondary mirror was given. High order aspheric surface was used to increase system design variance, and making off-axial optimization design to coaxial system based on optical design software ZEMAX, finally got an off-axis three-mirror optical system with wide rectangle field of view 172, focus length of 1 440 mm, F number of 4.8. The system has three high order aspheric optical elements, it can satisfy the requirement of high resolution and large field, the MTF is more than 0.6 at 50 lp/mm, approaches to the diffraction limitation. The designed result shows that the system can be used in space of imaging system with Timed Delay and Integrated Charge-couple Device(TDI-CCD), can expand the ground coverage of system obviously, and achieves high information retrieval efficiency.

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Reference (10)

[1]	Pang Zhihai, Fan Xuewu, Zou Gangyi, et al. Design of new wide-angle unobscured three mirror optical system[J]. Infrared and Laser Engineering, 2013, 42(9):2449-2452. (in Chinese)庞志海, 樊学武, 邹刚毅, 等. 新型大视场无遮拦三反光学系统设计[J]. 红外与激光工程, 2013, 42(9):2449-2452.
[2]	Guo Yongxiang, Li Yongqiang, Liao Zhibo, et al. Novel design of off-axis three reflective optical system[J]. Infrared and Laser Engineering, 2010, 43(9):2680-2683. (in Chinese)郭永祥, 李永强, 廖志波, 等. 新型离轴三反光学系统设计[J]. 红外与激光工程, 2010, 43(9):2680-2683.
[3]	Xue Qingsheng. Design of wide field of view off-axis three-mirror system for hyperspectral imager[J]. Infrared and Laser Engineering, 2012, 41(4):2449-2452. (in Chinese)薛庆生. 用于高光谱成像仪的大视场离轴三反光学系统设计[J]. 红外与激光工程, 2012, 41(4):2449-2452.
[4]	Wei Xiaoxiao, Xu Feng, Yu Jianjun. Design of space coaxial field-Bias three-mirror optical system with high resolution[J]. Chinese Journal of Lasers, 2012, 39(4):1-6. (in Chinese)韦晓孝, 许峰, 余建军. 高分辨率空间同轴偏视场三反光学系统设计[J]. 中国激光, 2012, 39(4):1-6.
[5]	Li Yan, Zhang Bao, Hong Yongfeng. Compact and multispectral off-axial three-mirror reflective optical system[J]. Journal of Applied Optics, 2014, 35(3):391-394. (in Chinese)李岩, 张葆, 洪永丰. 灵巧型离轴三反光学系统设计[J]. 应用光学, 2014, 35(3):391-394.
[6]	Liang Shitong, Yang Jianfeng, Xue Bin, et al. Aberration analysis and design of four-mirror reflective optical system[J]. Acta Optica Sinica, 2010, 30(11):3301-3305. (in Chinese)梁士通, 杨建峰, 薛琳, 等. 四反射镜光学系统像差分析与设计[J]. 光学学报, 2010, 30(11):3301-3305.
[7]	Liu Jun, Liu Weiqi, Kang Yusi, et al. Optical design of off-axis four-mirror optical system with wide field of view[J]. Acta Optica Sinica, 2013, 33(10):1-6. (in Chinese)刘军, 刘伟奇, 康玉思, 等. 大视场离轴四反射镜光学系统设计[J]. 光学学报, 2013, 33(10):1-6.
[8]	Pan Junhua. The Design, Manufacture and Test of the Aspherical Optical Surface[M]. Suzhou:Suzhou University Press, 2004:10-71. (in Chinese)潘君骅. 光学非球面的设计、加工与检验[M]. 苏州:苏州大学出版社, 2004:10-71.
[9]	Shi Shunxiang, Wang Xueen, Liu Jingsong. Application Optics and Physical Optics[M]. Xi'an:Xi'an University of Electronics and Technology Press, 2008:318-395. (in Chinese)石顺祥, 王学恩, 刘劲松. 物理光学与应用光学[M]. 西安:西安电子科技大学出版社, 2008:318-395.
[10]	Zhao Wencai. Design of improved off-axial TMA optical systems[J]. Optics and Precision Engineering, 2011, 19(12):2837-2843. (in Chinese)赵文才. 改进的离轴三反光学系统的设计[J]. 光学精密工程, 2011, 19(12):2837-2843.

Design of off-axis three-mirror optical system with wide field of view based on transfer matrix

doi: 10.3788/IRLA201645.0418003

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