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Measurement of an off-axis parabolic mirror using coordinates measurement machine and swing arm profilometer during the grinding process
Jing, Hongwei; Lin, Changqing; Fan, Bin; Kuang, Long; Wu, Shibin; Wu, Fan; Fan, Tianquan; Jing, H. (hwjing@ioe.ac.cn)
Volume8415
Pages84150K
2012
Language英语
ISSN0277786X
DOI10.1117/12.976811
Indexed ByEi
Subtype会议论文
AbstractWe present the measurement methods for off-axis parabolic mirrors using Coordinates Measurement Machine and Swing Arm Profilometer during the grinding process. An off-axis parabolic mirror with 1200mm in parent focal length, 360mm in off-axis displacement and 410mm in diameter is measured using the methods introduced in this paper. The convergence curves of the surface error are reported, which is reduced from 204.7μm in PV, 55.3μm in rms to 1.1μm in PV, 0.3μm in rms after 39 iterations of grinding. Besides, the measurement methods are able to control the parent focal length and off-axis displacement to less than 0.1mm tolerance. An interferometric result is presented, which validates the measurement methods. © 2012 SPIE.; We present the measurement methods for off-axis parabolic mirrors using Coordinates Measurement Machine and Swing Arm Profilometer during the grinding process. An off-axis parabolic mirror with 1200mm in parent focal length, 360mm in off-axis displacement and 410mm in diameter is measured using the methods introduced in this paper. The convergence curves of the surface error are reported, which is reduced from 204.7μm in PV, 55.3μm in rms to 1.1μm in PV, 0.3μm in rms after 39 iterations of grinding. Besides, the measurement methods are able to control the parent focal length and off-axis displacement to less than 0.1mm tolerance. An interferometric result is presented, which validates the measurement methods. © 2012 SPIE.
Conference NameProceedings of SPIE: 6th International Symposium on Advanced Optical Manufacturing and Testing Technologies: Large Mirrors and Telescopes
Conference Date2012
Citation statistics
Cited Times:3[WOS]   [WOS Record]     [Related Records in WOS]
Document Type会议论文
Identifierhttp://ir.ioe.ac.cn/handle/181551/7913
Collection质量处(质检中心)
Corresponding AuthorJing, H. (hwjing@ioe.ac.cn)
Affiliation Institute of Optics and Electronics, Chinese Academy of Sciences, P.O .Box 350, Chengdu, 610209, China
Recommended Citation
GB/T 7714
Jing, Hongwei,Lin, Changqing,Fan, Bin,et al. Measurement of an off-axis parabolic mirror using coordinates measurement machine and swing arm profilometer during the grinding process[C],2012:84150K.
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