Design of off-axis compact optical system with large relative aperture and large field of view

Zhiguang Ren; Xuyang Li; Wei Wang; Rui Yao; Zixuan Ma; Nanqing Chu

doi:10.1117/12.2604049

13 December 2021 Design of off-axis compact optical system with large relative aperture and large field of view

Zhiguang Ren, Xuyang Li, Wei Wang, Rui Yao, Zixuan Ma, Nanqing Chu

Proceedings Volume 12070, 10th International Symposium on Advanced Optical Manufacturing and Testing Technologies: Large Mirror and Telescopes; 1207005 (2021) https://doi.org/10.1117/12.2604049
Event: Tenth International Symposium on Advanced Optical Manufacturing and Testing Technologies (AOMATT 2021), 2021, Chengdu, China

Abstract

In order to deal with the threat of space debris to space experiment platforms and equipment, three-mirror anastigmatic system, which has the characteristics of light weight, small size and good optical performance, are used for space debris detection and detailed imaging. With the development of freeform surfaces, this article shows a new type of structure which has good optical performance and simple complexity of assembly and adjustment. The first step is to analyze the calculation method of the initial structure parameters of TMA system, and then the secondary mirror adopts the XY polynomial freeform surface. The primary mirror is reused as tertiary mirror, and the design of a new type TMA system is finally completed. Its effective focal length is 400 mm, the field of view (FOV) is 2°×4°, F/# is 5. At the Nyquist frequency 108lp/mm, the MTF value of this system is greater than 0.588. The maximum distortion is less than 0.80%. The results show that the imaging quality of the system meets the design requirements in the effective field of view.

Citation Download Citation

Zhiguang Ren, Xuyang Li, Wei Wang, Rui Yao, Zixuan Ma, and Nanqing Chu "Design of off-axis compact optical system with large relative aperture and large field of view", Proc. SPIE 12070, 10th International Symposium on Advanced Optical Manufacturing and Testing Technologies: Large Mirror and Telescopes, 1207005 (13 December 2021); https://doi.org/10.1117/12.2604049

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