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 | |
会议日期 | 2018-06-26 |
会议地点 | Chengdu, China |
卷号 | 10837 |
DOI | 10.1117/12.2504915 |
英文摘要 | 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. |
产权排序 | 1 |
会议录 | 9th International Symposium on Advanced Optical Manufacturing and Testing Technologies: Large Mirrors and Telescopes |
会议录出版者 | SPIE |
语种 | 英语 |
ISSN号 | 0277786X;1996756X |
ISBN号 | 9781510623163 |
内容类型 | 会议论文 |
源URL | [http://ir.opt.ac.cn/handle/181661/31216] |
专题 | 西安光学精密机械研究所_空间光学应用研究室 |
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]. 见:. Chengdu, China. 2018-06-26. |
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