Design and fabrication of CGH for 820mm diameter tertiary mirror surface figure testing without center hole | |
Pang, Zhihai; Feng, Liangjie; Ding, Jiaoteng; Fan, Xuewu; Ma, Zhen | |
2019 | |
会议日期 | 2018-06-26 |
会议地点 | Chengdu, China |
卷号 | 10840 |
DOI | 10.1117/12.2504889 |
英文摘要 | Computer-generated hologram (CGH) is an effective way to compensate wavefront aberration in null test of aspheric surfaces and freeform surfaces. Our strategies of CGH design for 820mm diameter tertiary mirror surface figure testing are presented, and an experiment demonstrating the compensation test results of CGH is reported. We design a CGH including two sections on the same substrate in order to align the CGH to the incident wavefront: main section for compensating wavefront in null test, alignment section for adjusting the relative position between CGH and interferometer. Because there is no center hole in the mirror, in order to isolate different orders of diffraction, we used tilt carrier to make different orders of diffraction come to focus at different position perpendicular the axis to avoid ghost reflections. © 2019 SPIE. |
产权排序 | 1 |
会议录 | 9th International Symposium on Advanced Optical Manufacturing and Testing Technologies: Micro- and Nano-Optics, Catenary Optics, and Subwavelength Electromagnetics |
会议录出版者 | SPIE |
语种 | 英语 |
ISSN号 | 0277786X;1996756X |
ISBN号 | 9781510623224 |
WOS记录号 | WOS:000461821600042 |
内容类型 | 会议论文 |
源URL | [http://ir.opt.ac.cn/handle/181661/31253] |
专题 | 西安光学精密机械研究所_空间光学应用研究室 |
作者单位 | Space Optics Laboratory, Xi'an Institute of Optics and Precision Mechanics, CAS, Shanxi Xi'an; 710119, China |
推荐引用方式 GB/T 7714 | Pang, Zhihai,Feng, Liangjie,Ding, Jiaoteng,et al. Design and fabrication of CGH for 820mm diameter tertiary mirror surface figure testing without center hole[C]. 见:. Chengdu, China. 2018-06-26. |
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