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题名:
Quantitative measurement of large-aperture aspheric surfaces by off-axis Ronchi test
作者: Guo, Chunfeng1; Su, Xianyu1; Chen, Wenjing1; Lei, Baiping2; Wu, Fan2
刊名: OPTICS AND LASERS IN ENGINEERING
出版日期: 2012-02-01
卷号: 50, 期号:2, 页码:165-169
关键词: Optical testing ; Aspheric mirror ; Ronchi test ; 3D surface measurement ; Fringe analysis
文章类型: Article
英文摘要: An off-axis Ronchi test based on the phase-shifting technique is presented to measure the aspheric mirror quantitatively. In this paper, slopes of deviations from the mirror's ideal aspheric shape are derived when an off-axis point source is used. By integrating these slopes, the deviations of the shape are obtained and then the tested shape can be reconstructed. Compared with the coaxial Ronchi test, the measurement error caused by combination fringes can be avoided, and this system is more flexible. In the experiment, a marked point is used to guide the phase unwrapping procedure, which improves the accuracy of extracting corresponding phase points. In addition, the method has strong anti-noise ability. The validity of the method has been verified by both computer simulations and a preliminary experiment. (C) 2011 Published by Elsevier Ltd.
WOS标题词: Science & Technology ; Physical Sciences
类目[WOS]: Optics
研究领域[WOS]: Optics
收录类别: SCI
语种: 英语
WOS记录号: WOS:000297872800010
Citation statistics:
内容类型: 期刊论文
URI标识: http://ir.ioe.ac.cn/handle/181551/2380
Appears in Collections:光电技术研究所被WoS收录文章_期刊论文

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作者单位: 1.Sichuan Univ, Dept Optoelect, Chengdu 610064, Peoples R China
2.Chinese Acad Sci, Inst Opt & Elect, Chengdu 610209, Peoples R China

Recommended Citation:
Guo, Chunfeng,Su, Xianyu,Chen, Wenjing,et al. Quantitative measurement of large-aperture aspheric surfaces by off-axis Ronchi test[J]. OPTICS AND LASERS IN ENGINEERING,2012,50(2):165-169.
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