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基于神经网络的CCOS去除函数研究及应用 学位论文  OAI收割
北京: 中国科学院大学, 2021
作者:  钱昕洁
  |  收藏  |  浏览/下载：30/0  |  提交时间：2021/06/23
Application of pressure regulation in CCOS polishing technology 会议论文  OAI收割
Chengdu, China, June 26, 2018 - June 29, 2018
作者:  Ye, Fengfei;  Wan, Yongjian;  Yu, Deping;  Liu, Haitao
  |  收藏  |  浏览/下载：50/0  |  提交时间：2021/05/06
基于变压力的CCOS光学研抛技术 期刊论文  OAI收割
光电工程, 2018, 卷号: 45, 期号: 4, 页码: 50-57
作者:  叶枫菲;  余德平;  万勇建;  刘海涛;  赵洪深
  |  收藏  |  浏览/下载：50/0  |  提交时间：2019/08/23
高精度离轴非球面CCOS加工关键技术研究 学位论文  OAI收割
硕士: 中国科学院上海光学精密机械研究所, 2016
作者:  赵璇
收藏  |  浏览/下载：29/0  |  提交时间：2016/11/28
高精度非球面数控加工工艺研究 学位论文  OAI收割
硕士: 中国科学院上海光学精密机械研究所, 2015
作者:  张逸中
收藏  |  浏览/下载：49/0  |  提交时间：2016/11/28
A Method to Evaluate Error Correction Ability of Computer Controlled Optical Surfacing Process 期刊论文  OAI收割
OPTICAL REVIEW, 2014, 卷号: 21, 期号: 3, 页码: 280-285
作者:  Wang, Jia;  Fan, Bin;  Wan, Yongjian;  Shi, Chunyan;  Zhuo, Bin
收藏  |  浏览/下载：33/0  |  提交时间：2015/07/10
轻质离轴碳化硅非球面反射镜加工与检测 会议论文  OAI收割
中国广东深圳
作者:  王孝坤
收藏  |  浏览/下载：19/0  |  提交时间：2013/03/19
Brazing RB-SiC used in large aperture space optical system (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 B.; Zhang Z.
收藏  |  浏览/下载：22/0  |  提交时间：2013/03/25
Because of the sic material's superior optical characteristic  machine characteristic and hot characteristic  it becomes currently the space big aperture reflector choose firstly1. For larger aperture sic mirror  it is not economical and safe to make the monolithic body directly 2  3. The SiC mirror brazed assembly with several segments can solve these problems. In this paper  one 600 mm sic plane mirror as demonstration welded with 3 radial segments is roughly grinded to the required figure at first  then the mirror is finely grinded and polished by the technology of CCOS  the mirror figure error is less than 1/20 ( = 632.8nm) in RMS finally. The problems of the preferential removal near braze joint are solved. The methods of reducing the residual stress of mirror are discussed. At last  some measurements and experiments are carried on  and the results conclude that the brazed SiC mirror can meet the requirement of large aperture optical systems. (2011) Trans Tech Publications.  
The removal function of edge effect and amending with dwell time function (EI CONFERENCE) 会议论文  OAI收割
5th International Symposium on Advanced Optical Manufacturing and Testing Technologies: Advanced Optical Manufacturing Technologies, April 26, 2010 - April 29, 2010, Dalian, China
作者:  Luo X.;  Zhang F.;  Zhang F.;  Wang X.-K.;  Zheng L.-G.
收藏  |  浏览/下载：28/0  |  提交时间：2013/03/25
Computer Controlled Optical Surfacing (CCOS) is widely used for making optical aspheric mirrors. In the practical fabrication  edge effect is an important problem which restricts the fabrication efficiency and accuracy seriously. In this paper  the edge effect is solved by working out the edge removal function and compensate with dwell time function. Skin Model is used to describe the pressure distribution when the tool hangs over the work-piece. The calculation model of edge removal function is derived from Skin Model theoretically. A removal function experiment is completed. The difference between the theoretical model and the experiment results is less than 5%. It means that the calculation model is suit for the practical fabrication. Than the dwell time is solved with edge effect compensation by matrix-based algorithm. In the end  actual experiment was done to validate the edge effect compensation method. 2010 Copyright SPIE - The International Society for Optical Engineering.  
Novel method for optimizing polishing tool-path in CCOS based on weighted-iterative 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:  Zhang X.-J.;  Wang X.;  Wang X.;  Wang X.;  Wang X.-K.
收藏  |  浏览/下载：37/0  |  提交时间：2013/03/25
In Computer Controlled Optical Surfacing (CCOS)  polishing tool-path is the base of solving other control parameters such as dwell time. In order to improve the fabrication results of polishing off-axis aspheric  a novel method to optimize the tool-path is discussed in this paper. The optimizing method named weighted-iterative algorithm is according to the balance principle of the particle system. The power factor of each dwell point represents the requirement of dwell density. Considering the factors which influence the polishing result  the power factors cosist of three elements include constant  error distribution and dwell distance of workpiece edge. The tool-path is solved by numerical iterative method. In the end  an error data is simulated with actual parameters using the matrix-based algorithm with two different tool-paths. The one is X-Y uniform spacing model and the other one is to optimize it based on the first. The comparison shows that the results of the optimized one are much better than traditional one  especially the rms convergence rate. Theory of the algorithm is simple and exercisable  and it satisfies practical requirement as well. 2009 SPIE.