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Variable curvature mirror having variable thickness: Design and fabrication
Zhao, Hui1; Xie, Xiaopeng2; Xu, Liang1; Ding, Jiaoteng1; Shen, Le1; Gong, Jie3
2017
会议名称Applied Optics and Photonics China: Space Optics and Earth Imaging and Space Navigation, AOPC 2017
会议录名称AOPC 2017: Space Optics and Earth Imaging and Space Navigation
卷号10463
会议日期2017-06-04
会议地点Beijing, China
出版者SPIE
产权排序1
摘要

Variable curvature mirror (VCM) can change its curvature radius dynamically and is usually used to correct the defocus and spherical aberration caused by thermal lens effect to improve the output beam quality of high power solid-state laser. Recently, the probable application of VCM in realizing non-moving element optical zoom imaging in visible band has been paid much attention. The basic requirement for VCM lies in that it should provide a large enough saggitus variation and still maintains a high enough surface figure at the same time. Therefore in this manuscript, by combing the pressurization based actuation with a variable thickness mirror design, the purpose of obtaining large saggitus variation and maintaining quite good surface figure accuracy at the same time could be achieved. A prototype zoom mirror with diameter of 120mm and central thickness of 8mm is designed, fabricated and tested. Experimental results demonstrate that the zoom mirror having an initial surface figure accuracy superior to 1/80λ could provide bigger than 36um saggitus variation and after finishing the curvature variation its surface figure accuracy could still be superior to 1/40λ with the spherical aberration removed, which proves that the effectiveness of the theoretical design. © 2017 SPIE.

作者部门空间光学应用研究室
DOI10.1117/12.2285184
收录类别EI ; ISTP
ISBN号9781510614079
语种英语
ISSN号0277786X
引用统计
文献类型会议论文
条目标识符http://ir.opt.ac.cn/handle/181661/29868
专题空间光学应用研究室
作者单位1.Xi'an Institute of Optics and Precision Mechanics, CAS, Xi'an; 710119, China
2.Graduate School of University of Chinese Academy of Science, Beijing; 100047, China
3.Xi'an BoYa Precision Optics Co.Ltd Company, China
推荐引用方式
GB/T 7714
Zhao, Hui,Xie, Xiaopeng,Xu, Liang,et al. Variable curvature mirror having variable thickness: Design and fabrication[C]:SPIE,2017.
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