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浏览/检索结果: 共11条，第1-10条 帮助 条数/页： 5101520253035404550556065707580859095100 排序方式： 请选择题名升序题名降序提交时间升序提交时间降序作者升序作者降序发表日期升序发表日期降序 Application progress of stressed mirror continuous polishing technology in the segments fabrication of telescope primary mirror 会议论文  OAI收割 California, United States, 2020-12-13 作者:  Jiang ZB(姜自波);  Li XN(李新南);  Chen Z(陈哲);  Cao T(曹亭);  Chen KX(陈昆新)   |  收藏  |  浏览/下载：45/0  |  提交时间：2021/03/30 Stressed Mirror Polishing  Continuous Polishing  Segments  Mirror Fabrication  Off-axis Aspheric  Contact Measurement   Mechanical analysis on the influence of the bonding process on the ultra-thin mirror shell 会议论文  OAI收割 SPIE Ground-based and Airborne Telescopes VII（Vol.10700）, Austin, Texas, United States, 2018-6-10 作者:  Heng Zuo;  Kunxing Chen   |  收藏  |  浏览/下载：39/0  |  提交时间：2019/02/03 epoxy adhesive  glue  deformable mirror  invar pad  FEA  mirror polishing   Rapid fabrication of a lightweight 2m reaction-bonded SiC aspherical mirror 期刊论文  OAI收割 Results in Physics, 2018, 卷号: 10, 页码: 903-912 作者:  Li, L. X.;  Liu, Z. Y.;  Xue, D. L.;  Deng, W. J.;  Li, R. G.   |  收藏  |  浏览/下载：19/0  |  提交时间：2019/09/17 Computer controlled polishing  Silicon carbide mirror  Surface error  Magnetorheological finishing  Large polishing lap  dwell time algorithm  material removal  tool  path  Materials Science  Physics   Research on key technical issues of contact method for large diameter off-axis aspheric segments 会议论文  OAI收割 SPIE Vol.9912, Edinburgh, United Kingdom, 2016-6-26 作者:  ZiBo Jiang;  XinNan Li;  YongJun Liang;  Bo Li;  BinBin Yu 收藏  |  浏览/下载：38/0  |  提交时间：2017/01/24 Stressed Mirror Annular Polishing  Off-axis aspherical mirror  Contact detection  Error analysis  Polynomials orthogonality   Technology on fabrication of precise SiC aspherical mirror (EI CONFERENCE) 会议论文  OAI收割 2011 International Conference on Materials and Products Manufacturing Technology, ICMPMT 2011, October 28, 2011 - October 30, 2011, Chengdu, China Zhang Z. 收藏  |  浏览/下载：26/0  |  提交时间：2013/03/25 This paper represents a technique to produce the large size optical aspherical mirror by using reaction-bonded silicon carbide to meet the material requirements of the space used mirrors  based on the characters comparison of all types mirror material. Techniques are described in this paper  including the bonding procedure of silicon carbide to form a mirror shape  the CCOM technology for aspheric grinding  polishing on a home-developed tool -FSGJ-2  and the aspheric profilometry. A specialized Offner Null lens is also developed to measure the aspherical mirror with laser interferometer. With the technology depicted in the paper  a 502mm 298 mm off-axis SiC aspherical mirror is successfully made with a surface accuracy better than 1/50rms  the final result meets the design requirement. (2011) Trans Tech Publications.   Study on the calculation and application for asphericity of rectangle off-axis aspherics (EI CONFERENCE) 会议论文  OAI收割 4th International Symposium on Advanced Optical Manufacturing and Testing Technologies: Advanced Optical Manufacturing Technologies, November 19, 2008 - November 21, 2008, Chengdu, China 作者:  Xuan B.;  Song S.-M.;  Xie J.-J.;  Xie J.-J.;  Zhang H. 收藏  |  浏览/下载：70/0  |  提交时间：2013/03/25 Asphericity which affects the manufacturing process and the grinding quantity is an important parameter of optical aspherics. In this paper  the approximation  the least square fitting  wavefront aberration  sag methods are given for the calculation of optical asphericity. The effects of different definitions of optical asphericity are analysed to optimize the process of manufacture. A sag method is presented to solve the best-fit sphere and asphericity for an off-aixs aspheric mirror with a rectangle aperture of 180mm145mm  and polishing quantity and distribution plots are given. The optical manufacturing and testing technology for different choices of best-fit spheres and asphericity are described and analyzed. Therefore  proper definition of optical asphericity which is useful to manufacturing is very important for optical fabrication and test. 2009 SPIE.   Double-swing method used for polishing off-axis aspherical mirrors (EI CONFERENCE) 会议论文  OAI收割 4th International Symposium on Advanced Optical Manufacturing and Testing Technologies: Advanced Optical Manufacturing Technologies, November 19, 2008 - November 21, 2008, Chengdu, China 作者:  Chen Y.;  Song S.-M.;  Xuan B.;  Wang P.;  Li J.-F. 收藏  |  浏览/下载：45/0  |  提交时间：2013/03/25 Based on the characteristics of off-axis aspherical surface  the comparison of simulation effects under different parameters is made. In order to achieve optimal parameters  a new method used for polishing off-axis aspherical mirrors-Double-Swing Method (DSM) is proposed in this paper  a high order off-axis rectangle aspherical mirror has been polished by DSM. The final result of profile measurements of 12nm  and the polishing mechanism of DSM is introduced. The mathematical model of the DSM with steady movement state is established.The movement of this mathematical model is simulated in a programming language  RMS is achieved. The result indicates that the method is of practice and has even higher working efficiency and precision. 2009 SPIE.   Multi-mode combined manufacturing technology for large aperture aspheric mirrors (EI CONFERENCE) 会议论文  OAI收割 3rd International Symposium on Advanced Optical Manufacturing and Testing Technologies, AOMATT 2007: Large Mirrors and Telescopes, July 8, 2007 - July 12, 2007, Chengdu, China 作者:  Li J.;  Xuan B.;  Li J.;  Li J. 收藏  |  浏览/下载：16/0  |  提交时间：2013/03/25 In the field of manufacturing large aperture aspheric mirrors  mid-frequency surface error has been considered to be one of the most important factors for both manufacturing and testing technique. Mid-frequency surface error controlling the polishing process is not conventionally concerned as the same of controlling of low-frequency surface error. In order to solve such a problem  a new method - Multi-mode Combined Manufacturing (MCM) is put forward. MCM technology is useful for the control on all frequency-bands errors of optical surface and is adaptive to fast aspheric mirror especially. Based on classical manufacturing theory  principle analysis of MCM and experiments results are discussed in the paper.   Active polishing technology for large aperture aspherical mirror and ultra thin mirror 会议论文  OAI收割 Xian, China, 2005-11-2 作者:  Xinnan Li;  Xiangqun Cui;  Bilie Gao 收藏  |  浏览/下载：26/0  |  提交时间：2013/12/24 Active stress lap  Aspherical mirror polishing  Ultra thin mirror  Active polishing  Computer control polishing   Mechanical design of the stressed- lap polishing tool 会议论文  OAI收割 Changchun, China, 2005-8-21 作者:  Zhu Yong-tian;  Wang lei;  Zhang Qing-feng 收藏  |  浏览/下载：18/0  |  提交时间：2013/12/24 Aspheric mirror polishing  Stressed lap  Finite Element Analysis