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Quantitative measurement of large-aperture aspheric surfaces by off-axis Ronchi test
Guo, Chunfeng1; Su, Xianyu1; Chen, Wenjing1; Lei, Baiping2; Wu, Fan2; Su, X. (xianyusu@mail.sc.cninfo.net)
Source PublicationOptics and Lasers in Engineering
Volume50Issue:2Pages:165-169
2012
Language英语
ISSN01438166
DOI10.1016/j.optlaseng.2011.09.010
Indexed ByEi
WOS IDWOS:000297872800010
Subtype期刊论文
AbstractAn 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 mirrors 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. © 2011 Elsevier Ltd. All rights reserved.; 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 mirrors 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. © 2011 Elsevier Ltd. All rights reserved.
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Cited Times:5[WOS]   [WOS Record]     [Related Records in WOS]
Document Type期刊论文
Identifierhttp://ir.ioe.ac.cn/handle/181551/7009
Collection先光中心
Corresponding AuthorSu, X. (xianyusu@mail.sc.cninfo.net)
Affiliation1. Department of Opto-Electronics, Sichuan University, Chengdu 610064, China
2. Institute of Optics and Electronics, Chinese Academy of Sciences, Chengdu 610209, China
Recommended Citation
GB/T 7714
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.
APA Guo, Chunfeng,Su, Xianyu,Chen, Wenjing,Lei, Baiping,Wu, Fan,&Su, X. .(2012).Quantitative measurement of large-aperture aspheric surfaces by off-axis Ronchi test.Optics and Lasers in Engineering,50(2),165-169.
MLA Guo, Chunfeng,et al."Quantitative measurement of large-aperture aspheric surfaces by off-axis Ronchi test".Optics and Lasers in Engineering 50.2(2012):165-169.
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