中国科学院机构知识库网格系统: 检索

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)

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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

Research on measurement optical axis eccentricity and fitting method of aspheric mirror 会议论文 OAI收割
Beijing, China, 2019-10-26
作者: Fu, Xi Hong; Li, Shuo; Xue, Li; Kang, Shi-Fa; Zheng, Xiang-Ke

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收藏 | 浏览/下载：23/0 | 提交时间：2020/04/23

Aspheric mirror Optical axis CMM Measurement coordinate system Eccentricity test

Measurement Vertex Position of a Large Aspheric Mirror 期刊论文 OAI收割
APPLIED SCIENCES-BASEL, 2019, 卷号: 9, 期号: 6
作者: Li, Jie; Yan, Fengtao; Chen, Lin; Yang, Jie; Wan, Yongjian

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收藏 | 浏览/下载：20/0 | 提交时间：2021/05/06

optical measurement dimensional measurement aspheric mirror vertex position

Quantitative measurement of large-aperture aspheric surfaces by off-axis Ronchi test 期刊论文 OAI收割
OPTICS AND LASERS IN ENGINEERING, 2012, 卷号: 50, 期号: 2, 页码: 165-169
作者: Guo, Chunfeng; Su, Xianyu; Chen, Wenjing; Lei, Baiping; Wu, Fan

收藏 | 浏览/下载：23/0 | 提交时间：2015/07/10

Optical testing Aspheric mirror Ronchi test 3D surface measurement Fringe analysis

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.

The application of diagnostic equipment in the Tokamak fusion reaction (EI CONFERENCE) 会议论文 OAI收割
2011 International Conference on Optical Instruments and Technology: Optical Systems and Modern Optoelectronic Instruments, November 6, 2011 - November 9, 2011, Beijing, China
Zhang B.-S.; Chang J.; Gong X.-Z.; Gan J.-F.; Feng S.-L.

收藏 | 浏览/下载：18/0 | 提交时间：2013/03/25

This paper introduces the infrared optical system in the Tokamak fusion reaction device. In this optical system 3.the relay group lenses. This paper describes the decrease of the modulation transfer function (MTF) when the temperature changes and how to compensate the decrease of the MTF in order to maintain the image quality in a high level. As a result the traditional optical structure can't meet the requirements 2.the Cassegrain system the image quality of this optical system can reach the requirements when the temperature changes. 2011 Copyright Society of Photo-Optical Instrumentation Engineers (SPIE). because the length of the infrared optical system in the Tokamak is very long. The design of optical system in the detection facility includes three parts:1.the combination of the concave aspheric mirror and flat mirror

Investigation of Sub-aperture Polish Techniques for Manufacturing Astronomical Mirror 会议论文 OAI收割
San Diego, California, USA, 2010-6-27
作者: Jiang Zi-bo; Li Xin-nan; Zheng Yi; Guo Wei-yuan; Liang Bin

收藏 | 浏览/下载：24/0 | 提交时间：2014/01/03

Aspheric mirror optical manufacture computer control optical surface ion beam figuring

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.

Mid-frequency surface error test with a Foucault apparatus (EI CONFERENCE) 会议论文 OAI收割
3rd International Symposium on Advanced Optical Manufacturing and Testing Technologies: Optical Test and Measurement Technology and Equipment, July 8, 2007 - July 12, 2007, Chengdu, China
作者: Li J.; Li J.; Xuan B.; Li J.

收藏 | 浏览/下载：16/0 | 提交时间：2013/03/25

Testing of mid-frequency surface error is of the first importance for fast optics especially for large aperture aspherics. Foucault test plays a dominant role for surface error inspection before the digital interferometer age but it seems to have faded out these days because no quantitative results turn out. However an interferometer with high resolution CCDs is either unavailable or unaccessible in the process of manufacture. As its advantages are realized and recognized for the second time Foucault test is going back to the stage again. A new theory of calculating the contrast of the shadow pattern of Foucault test is put forward in this paper and some modifications are discussed upon the analyses of the limitation of traditional Foucault apparatus. A paraboloidal mirror was fabricated and tested by the modified Foucault apparatus whose effect has been proved to be great. The methods of controlling mid-frequency error are described in the other paper at this conference- "Multi-mode combine manufacturing technology for large aperture aspheric mirrors"1.

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.