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浏览/检索结果: 共19条，第1-10条 帮助

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Relationship between angle error and image rotation of Sagnac transverse shearing interferometer 会议论文  OAI收割
Hefei, China, 2018-11-26
作者:  Chou, Xiao-Quan;  Jiao, Qiao-Li;  Sun, Jian;  Ren, Wen-Zhen;  Li, Xiao-Yan
  |  收藏  |  浏览/下载：43/0  |  提交时间：2019/07/01
Principle of a two-output-difference interferometer for removing the most important interference distortions 期刊论文  OAI收割
JOURNAL OF MODERN OPTICS, 2018, 卷号: 65, 期号: 19, 页码: 2234-2242
作者:  Yang, Qinghua;  Liu, Lixin;  Lv, Pei
  |  收藏  |  浏览/下载：31/0  |  提交时间：2018/09/29
Principle of a two-output-difference interferometer for removing the most important interference distortions 期刊论文  OAI收割
JOURNAL OF MODERN OPTICS, 2018, 卷号: 65, 期号: 19, 页码: 2234-2242
作者:  Yang, Qinghua;  Liu, Lixin;  Lv, Pei
  |  收藏  |  浏览/下载：55/0  |  提交时间：2018/09/29
Technique for measuring the three-dimensional shapes of telescope mirrors 期刊论文  OAI收割
Optical Engineering, 2016, 卷号: 55, 期号: 9, 页码: 1-10
作者:  Wang ZZ(王振洲)
收藏  |  浏览/下载：27/0  |  提交时间：2016/10/16
Improving the accuracy of mirror measurements by removing noise and lens distortion 期刊论文  OAI收割
Measurement Science and Technology, 2016, 卷号: 27, 期号: 11, 页码: 1-9
作者:  Wang ZZ(王振洲)
收藏  |  浏览/下载：25/0  |  提交时间：2016/11/06
Null compensator testing convex freeform surface mirror with CGH technology (EI CONFERENCE) 会议论文  OAI收割
2012 International Conference on Future Optical Materials and Circuit Design, FOMCD 2012, December 27, 2012 - December 28, 2012, Xiamen, China
作者:  Zhang Z.-Y.;  Zhang Z.-Y.;  Zhang B.-Z.
收藏  |  浏览/下载：29/0  |  提交时间：2013/03/25
Principle and analysis of a moving double-sided mirror interferometer 期刊论文  OAI收割
optics and laser technology, 2012, 卷号: 44, 期号: 5, 页码: 1256-1260
作者:  Yang, Qinghua;  Zhao, Baochang;  Wen, Desheng
收藏  |  浏览/下载：39/0  |  提交时间：2012/09/04
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.  
Design and test of pointing mirror assembly for spaceborne remote sensing camera (EI CONFERENCE) 会议论文  OAI收割
2011 International Conference on Electronics, Communications and Control, ICECC 2011, September 9, 2011 - September 11, 2011, Ningbo, China
作者:  Chen W.
收藏  |  浏览/下载：35/0  |  提交时间：2013/03/25
In order to ensure the surface figure of the pointing mirror (460mm long  290mm wide) in spaceborne remote sensing camera  Silicon Carbide was selected as the mirror material. The form of composite triangular and rectangular and the combination of open and closed back was explored in the lightweight design. A new kinematic mount and flexible structure in axis is used to hold the mirror around the lateral surface. The structure can minimize distortions induced by coefficient of thermal expansion mismatch among the materials. This eliminates the bending of the integral mount under the weight of the mirror. Optical performance of the mirror was analyzed under gravity load and temperature load using finite element method. Predicted surface figure error based on the removal of bias  tilt and power was calculated using an in-house Matlab script for mirrors. The pointing mirror assembly was tested using open loop servo control. And the surface figure was checked using interferometer. Surface figure accuracy is better than 1/30 ( 632.8nm  rms). The results show that the kinematic mount induces minimal figure error on the optical surface. 2011 IEEE.  
Research of active supporting technology based on 400mm thin mirror (EI CONFERENCE) 会议论文  OAI收割
5th International Symposium on Advanced Optical Manufacturing and Testing Technologies: Large Mirrors and Telescopes, April 26, 2010 - April 29, 2010, Dalian, China
作者:  Liu X.-Y.;  Wang J.-L.;  Wang J.-L.;  Liu X.-Y.
收藏  |  浏览/下载：27/0  |  提交时间：2013/03/25
Using a spherical mirror of 400mm diameter and 12mm thickness  active supporting technology of thin mirror is researched. The axial support of the mirror is composed of 12 active supports and 3 fixed supports. The force actuator  which is composed of displacement actuator and force sensor  is installed in the active support. The mirror surface is tested by Zygo interferometer. For calibration  each actuator exerts unit force alone  and the surface variation is tested and taken as the response function of the actuator. The response functions of all actuators compose the stiffness matrix. Then the stiffness matrix is used by damped least square method to determine the correction force of each active support. In order to analyze the correction capability of the active supports  14 Zernike modes of the mirror surface are generated and tested respectively  and 7 modes are selected for correction. Initially  the RMS error of mirror surface is 1.16 I( =0.6328nm)when all actuators exert the same force. After 5 iterations  the RMS error of mirror surface is reduced to 0.13  close to the original surface quality. 2010 Copyright SPIE - The International Society for Optical Engineering.