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• 南京天文光学技术研究... [6]
• 长春光学精密机械与物... [5]

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• OAI收割 [11]

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• 会议论文 [11]

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• 2022 [1]
• 2016 [1]
• 2012 [1]
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• 2008 [2]
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• 天文技术与方法::天... [4]
• 天文技术与方法 [2]

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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 The special use of ghost image in null testing the large aperture aspherical mirrors 会议论文  OAI收割 Xi'an, China, 2022-12-15 作者:  Ji B(季波);  Li XN(李新南);  Xu C(徐晨)   |  收藏  |  浏览/下载：36/0  |  提交时间：2023/03/22 aspherical mirror  null testing  compensator  ghost image  adjusting   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   Development of testing convex hyperbolic mirror using Hindle method based on stitching technology 会议论文  OAI收割 Amsterdam, Netherlands, 2012-7-1 作者:  Zi-bo Jiang;  Xin-nan Li;  Bo Ji 收藏  |  浏览/下载：31/0  |  提交时间：2014/01/09 Hindle method  aspherical mirror  stitching  sub-aperture  convex secondary mirror   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：28/0  |  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.   Design of aspherical surfaces for panoramic imagers using multipopulations genetic algorithm (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:  Jin C.-S.;  Wang L.-P.;  Liang Z.-Z. 收藏  |  浏览/下载：30/0  |  提交时间：2013/03/25 A design method of aspherical surface for panoramic imaging system with two mirrors using multi-populations genetic algorithms is proposed. Astigmatism induced by mirrors may significantly compromise image resolution. To solve this problem  we induced algebraic expression of astigmatism in panoramic imager based on generalized Coddington equation and theory of geometric optics. Then  we propose an optimization process for mirror profile design to eliminate astigmatism and provide purposely-designed projection formula with aid of MPGA. A series of polynomial expressions of aspherical surfaces are obtained and procedures of the design are presented. In order to facilitate ray tracing and aberration calculation  even asphere surface model is obtained by using of hybrid schemes combining MPGA and damped least squares. Finally  a prototype of the catadioptric panoramic imager has been developed and panoramic ring image is obtained. 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：46/0  |  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.   Design of 2.5m Optical Fabrication Machine for Astronomical Mirrors 会议论文  OAI收割 Marseille, France, 2008-6-23 作者:  Da-xing Wang;  Yi Zheng;  Bin Liang;  Ying Li 收藏  |  浏览/下载：27/0  |  提交时间：2014/01/01 Optical fabrication machine  aspherical mirror  computer control  sub-aperture tool  active stressed lap   Optical system design with high resolution and large field of view for the remote sensor (EI CONFERENCE) 会议论文  OAI收割 Chang J.; Weng Z.-C.; Wang Y.-T.; Cheng D.-W.; Jiang H.-L. 收藏  |  浏览/下载：29/0  |  提交时间：2013/03/25 In this paper  we are presenting a design method and its results for a space optical system with high resolution and wide field of view. This optical system can be used both in infrared and visible configurations. The designing of this system is based on an on-axis three-mirror anastigmatic (TMA) system. Here the on-axis concept allows wide field of view (FOV) enabling a diversity of designs available for the Multi-Object Spectrometer instruments optimized for low scattered and low emissive light. The available FOVs are upto 1 in both spectrum ranges  whereas the available aperture range is F/15 - F/10. The final optical system is a three-mirror telescope with two on-axis and one off-axis segment and its resolution is 0.3m or even lower. The distinguished feature of this design is that it maintains diffraction-limited image at wide wavelengths. The technological developments in the field of computer generated shaping of large-sized optical surface details with diffraction-limited imagery have opened new avenues towards the designing techniques. Such techniques permit us to expand these technological opportunities to fabricate the aspherical off-axis mirrors for a complex configuration.   Manufacturing and testing of 1-m class SiC aspherical mirror (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 Z.;  Li Z.;  Zhang X.;  Zhang X.;  Zhang X. 收藏  |  浏览/下载：21/0  |  提交时间：2013/03/25 A 1-m class off-axis SiC aspherical mirror was polished up to 13nm rms with CCOS. The lightweight mirror structure design  CCOS procedure  as well as interferometic test set up are be presented in the paper. In addition  the residual surface error of SiC mirror is analyzed and approach to improve the surface quality is discussed.   Some considerations about structure of off-axis segments in stitching paraboloidal mirror 会议论文  OAI收割 Xian, China, 2005-11-2 作者:  Gao Bilie 收藏  |  浏览/下载：11/0  |  提交时间：2013/12/24 aspherical manufacture  structure of off-axis segment  stitching paraboloidal mirror  rotating axis of off-axis segment  reminder removal quantity