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Design of off-axis three-mirror freeform optical system with wide field of view
Ni, Dongwei1,2; Li, Xuyang1; Ren, Zhiguang3; Wang, Yuming1,2; Wang, Lei1,2; Tian, Chunlin1,2
2019
会议名称9th International Symposium on Advanced Optical Manufacturing and Testing Technologies: Large Mirrors and Telescopes, AOMATT 2018
会议录名称9th International Symposium on Advanced Optical Manufacturing and Testing Technologies: Large Mirrors and Telescopes
卷号10837
会议日期2018-06-26
会议地点Chengdu, China
出版者SPIE
产权排序1
摘要

In order to obtain a wider imaging field of view, freeform surface is used to design a large field of view space optical imaging system. The system uses an off-axis three-mirror optical structure with focal length of 1600 mm, F number of 8, and field of view angle of 20°×1°. Because of the large field of view, the image quality of general aspheric optimization design system cannot meet the requirements. In order to improve the freedom of system design, the Zernike polynomial freeform surface is applied to the tertiary mirror of the system, which enables the sagittal field of view to reach 20° further widening the imaging field of view. Degrees of freedom are increased effectively by the addition of the freeform surface. After optimization design, the optical transfer function of the system is better than 0.5 at 63 lp/mm, and the diffusion spot is optimized into Airy circle. The system energy concentration is high, and the imaging quality is close to the diffraction limitation. © 2019 SPIE.

作者部门空间光学技术研究室
DOI10.1117/12.2504915
收录类别EI
ISBN号9781510623163
语种英语
ISSN号0277786X;1996756X
EI入藏号20190506432475
引用统计
被引频次:1[WOS]   [WOS记录]     [WOS相关记录]
文献类型会议论文
条目标识符http://ir.opt.ac.cn/handle/181661/31216
专题空间光学技术研究室
通讯作者Li, Xuyang
作者单位1.Space Optics Lab, Xi'an Institute of Optics and Precision Mechanics, Chinese Academy of Sciences, Xi'an; 710119, China;
2.University of Chinese Academy of Sciences, Beijing; 100049, China;
3.Shaanxi Normal University, Xi'an; 710119, China
推荐引用方式
GB/T 7714
Ni, Dongwei,Li, Xuyang,Ren, Zhiguang,et al. Design of off-axis three-mirror freeform optical system with wide field of view[C]:SPIE,2019.
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