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	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.
	A null-space primal-dual interior-point algorithm for nonlinear optimization with nice convergence properties 期刊论文 OAI收割 MATHEMATICAL PROGRAMMING, 2010, 卷号: 125, 期号: 1, 页码: 163-193 作者: Liu, Xinwei; Yuan, Yaxiang \| 收藏 \| 浏览/下载：19/0 \| 提交时间：2018/07/30 Global and local convergences Null-space technique Primal-dual interior-point methods Nonlinear optimization with inequality and equality constraints
	Manufacturing and Testing SiC Aspherical mirrors in Space telescopes (EI CONFERENCE) 会议论文 OAI收割 ICO20: Optical Devices and Instruments, August 21, 2005 - August 26, 2005, Changchun, China 作者: Fan D.; Zhang X.; Zhang X.; Zhang X. 收藏 \| 浏览/下载：23/0 \| 提交时间：2013/03/25 Reaction Bonded (RB) SiC mirrors due to their excellent specific stiffness and thermal properties have been widely used in space telescopes. However polishing large SiC aspherical mirrors is difficult compared to other materials such as fused silica or Zerodu. In addition surface roughness of the polished SiC mirrors is limited by the defects of the materials and needs to be improved by means of surface coating technique. This paper introduces the current progress of large SiC aspherical mirrors manufacturing and testing in CIOMP. In particular the procedures of making large off-axis aspherical mirrors were discussed in detail. A proprietary computer controlled optical surfacing (CCOS) technique was utilized to grind and polish the mirrors and the computer aided null test was used to measure the surface figure. As results a 600mm class off-axis SiC aspherical mirrors was demonstrated with figure error less than 13nm rms.