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Co-focus experiment of segmented mirror
Li, Bin1,2,3; Yu, Wen-Hao1,2,3; Chen, Mo1,2,3; Tang, Jin-Long1,3; Xian, Hao1,3
2017
Source PublicationChinese Physics B
ISSN1674-1056
Volume26Issue:6Pages:060706
AbstractIn this paper, an active optics and co-focus experimental system of segmented mirror is built. Firstly, a support structure of segmented mirror is designed and it is verified by simulation to meet the requirement for the experimental system of segmented mirror. In this system, the large de-focus and tilt/tip errors of the segmented mirror are adjusted by observing the density and contrast of interference fringes based on isoclinic interference theory until the defocus and tilt/tip errors are in the detective range of the Shack-Hartmann. Then, the Shack-Hartmann is used to measure them and they are adjusted by actuators. The actuators are controlled by active optics to realize the closed-loop adjustment and maintenance for fine co-focus of segmented mirror. And the interference fringes are utilized to verify the detective precision of Shack-Hartmann. After the co-focus fine-tuning of the segmented mirror, the tilt/tip residual surface error is better than RMS; the defocus residual surface error is better than RMS. © 2017 Chinese Physical Society and IOP Publishing Ltd.
KeywordActuators - Errors - Image analysis - Mirrors - Telescopes
Indexed BySCI ; Ei
Language英语
Document Type期刊论文
Identifierhttp://ir.ioe.ac.cn/handle/181551/8799
Collection自适应光学技术研究室(八室)
Affiliation1.Key Laboratory on Adaptive Optics, Chinese Academy of Sciences, Chengdu; 610209, China;
2.University of Chinese Academy of Sciences, Beijing; 100049, China;
3.Institute of Optics and Electronics, Chinese Academy of Sciences, Chengdu; 610209, China
Recommended Citation
GB/T 7714
Li, Bin,Yu, Wen-Hao,Chen, Mo,et al. Co-focus experiment of segmented mirror[J]. Chinese Physics B,2017,26(6):060706.
APA Li, Bin,Yu, Wen-Hao,Chen, Mo,Tang, Jin-Long,&Xian, Hao.(2017).Co-focus experiment of segmented mirror.Chinese Physics B,26(6),060706.
MLA Li, Bin,et al."Co-focus experiment of segmented mirror".Chinese Physics B 26.6(2017):060706.
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