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Deformation verification and surface improvement of active stressed lap for 4 m-class primary mirror fabrication
Zhao, Hongshen1,2; Li, Xiaojin1; Fan, Bin1; Zeng, Zhige1
Source PublicationAPPLIED OPTICS
Volume54Issue:10Pages:2658-2664
2015-04-01
Language英语
Indexed BySCI
WOS IDWOS:000352152400016
SubtypeArticle
AbstractThe surface shape accuracy of the active stressed lap impacts the performance of grinding and polishing in the fabrication of large mirrors. We introduce a model of active stressed lap for the fabrication of a 4 m f/1.5 mirror based on finite element analysis (FEA), and the lap surface accuracy achieves RMS < 1.8 mu m in the FEA method. Using the lap surface measurement system, experimental verification is put forward, and the RMS of the measured lap surface is within 2 mu m in practice. A general improvement in lap surface accuracy using the Zernike polynomial is shown. After compensating the calculation errors, the lap surface accuracy is improved by 8%-23%, and achieves RMS < 1.5 mu m, which is appropriate for practical grinding and polishing. (C) 2015 Optical Society of America
WOS KeywordTOOL
WOS Research AreaOptics
WOS SubjectOptics
Citation statistics
Cited Times:4[WOS]   [WOS Record]     [Related Records in WOS]
Document Type期刊论文
Identifierhttp://ir.ioe.ac.cn/handle/181551/2547
Collection光电技术研究所被WoS收录文章
Affiliation1.Chinese Acad Sci, Inst Opt & Elect, Chengdu 610209, Peoples R China
2.Univ Chinese Acad Sci, Beijing 100039, Peoples R China
Recommended Citation
GB/T 7714
Zhao, Hongshen,Li, Xiaojin,Fan, Bin,et al. Deformation verification and surface improvement of active stressed lap for 4 m-class primary mirror fabrication[J]. APPLIED OPTICS,2015,54(10):2658-2664.
APA Zhao, Hongshen,Li, Xiaojin,Fan, Bin,&Zeng, Zhige.(2015).Deformation verification and surface improvement of active stressed lap for 4 m-class primary mirror fabrication.APPLIED OPTICS,54(10),2658-2664.
MLA Zhao, Hongshen,et al."Deformation verification and surface improvement of active stressed lap for 4 m-class primary mirror fabrication".APPLIED OPTICS 54.10(2015):2658-2664.
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