The Research of Φ1400mm Sic Mirror for Fabrication, Test and Alignment

doi:10.1117/12.2605024

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	The Research of Φ1400mm Sic Mirror for Fabrication, Test and Alignment
	Liangjie, Feng; Gangyi, Zou; Pengfei, Cheng; Renguorui; Wei, Wang
	2021
会议名称	10th International Symposium on Advanced Optical Manufacturing and Testing Technologies: Large Mirrors and Telescopes 2021
会议录名称	10th International Symposium on Advanced Optical Manufacturing and Testing Technologies: Large Mirrors and Telescopes
卷号	12070
会议日期	2021-06-14
会议地点	Chengdu, China
出版者	SPIE
产权排序	1
摘要	A Φ1400mm silicon carbide(SiC) mirror assembly was designed according to the requirement of the mass and the optical surface distortion. The parameters of the light-weighted open-back primary mirror were optimized by finite element analysis. Six flexure bipods were designed to support the mirror edge in 12 points evenly. 12 floating anti-gravity supports were used to Minimize the optical surface distortion caused by gravity effect to obtain the real optical surface during polishing. The mirror was precisely assembled with the bipods supports and the Carbon fiber reinforcement plastic (CFRP) chamber. The optical test with interferometer showed that the surface distortion was less than 0.03λ(λ=632nm) RMS with ±5 temperature variation and 1g gravity condition, and the mass was 145kg, which coincided with the FEA results. © 2021 SPIE
关键词	SiC mirror flexure support light-weighted design surface distortion
作者部门	空间光学技术研究室
DOI	10.1117/12.2605024
收录类别	EI
ISBN号	9781510650152
语种	英语
ISSN号	0277786X;1996756X
EI入藏号	20220811682268
引用统计
文献类型	会议论文
条目标识符	http://ir.opt.ac.cn/handle/181661/95734
专题	空间光学技术研究室
作者单位	Xi'an Institute of Optics and Precision Mechanics, CAS, China
推荐引用方式 GB/T 7714	Liangjie, Feng,Gangyi, Zou,Pengfei, Cheng,et al. The Research of Φ1400mm Sic Mirror for Fabrication, Test and Alignment[C]:SPIE,2021.

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