Research on key technical issues of contact method for large diameter off-axis aspheric segments | |
ZiBo Jiang1,2; XinNan Li1,2; YongJun Liang1,2; Bo Li1,2; BinBin Yu1,2; Zhe Chen1,2 | |
2016-07-22 | |
Conference Name | SPIE Vol.9912 |
Conference Date | 2016-6-26 |
Conference Place | Edinburgh, United Kingdom |
Abstract |
The research works are summarized for Φ1.1m off-axis aspheric segments which are scaled-down TMT segments polished by NIAOT using SMAP (Stressed Mirror Annular Polishing) method in the previous phase and testing preparations for 1.44m mirrors. The detailed introduction is given on result of errors analysis in contact detection testing of segments. In the second part, the selected basis of sampling number for contact-type detector arrays and the terms number of Zernike polynomials we need are studied. And the situations on orthogonality destruction of Zernike polynomials in discrete points sampling case and spectral analysis for each order Spherical aberrations in continuous sampling are introduced. |
Keyword | Stressed Mirror Annular Polishing Off-axis Aspherical Mirror Contact Detection Error Analysis Polynomials Orthogonality |
Subject Area | 天文技术与方法 |
Language | 英语 |
Document Type | 会议论文 |
Identifier | http://ir.niaot.ac.cn/handle/114a32/1373 |
Collection | 会议论文 |
Affiliation | 1.南京天文光学技术研究所 2.中国科学院天文光学重点实验室 |
Recommended Citation GB/T 7714 | ZiBo Jiang,XinNan Li,YongJun Liang,et al. Research on key technical issues of contact method for large diameter off-axis aspheric segments[C],2016. |
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Research on key tech(603KB) | 会议论文 | 开放获取 | CC BY-NC-SA | View Download |
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