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浏览/检索结果: 共4条，第1-4条 帮助 限定条件 内容类型：会议论文    专题：长春光学精密机械与物理研究所    第一署名单位    第一作者单位    通讯作者单位     已选(0)清除 条数/页：5101520253035404550556065707580859095100   排序方式：请选择作者升序作者降序题名升序题名降序发表日期升序发表日期降序提交时间升序提交时间降序 Extracting of removal function in CCOS based on edge detection algorithm 会议论文 Conference Location, 2013 Liu J.; Wang S. Z.; Zhang L. H.; Chen H. N. 收藏  |  浏览/下载：8/0  |  提交时间：2014/05/22 The removal function of edge effect and amending with dwell time function (EI CONFERENCE) 会议论文 5th International Symposium on Advanced Optical Manufacturing and Testing Technologies: Advanced Optical Manufacturing Technologies, April 26, 2010 - April 29, 2010, Dalian, China Deng W.-J.; Zheng L.-G.; Wang X.-K.; Luo X.; Zhang F. 收藏  |  浏览/下载：16/0  |  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 4th International Symposium on Advanced Optical Manufacturing and Testing Technologies: Advanced Optical Manufacturing Technologies, November 19, 2008 - November 21, 2008, Chengdu, China Deng W.-J.; Zhang X.-J.; Wang X.-K.; Wang X. 收藏  |  浏览/下载：31/0  |  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.   Novel resistance iterative algorithm for CCOS (EI CONFERENCE) 会议论文 Current Developments in Lens Design and Optical Engineering VII, August 14, 2006 - August 15, 2006, San Diego, CA, United states Zheng L.; Zhang X. 收藏  |  浏览/下载：57/0  |  提交时间：2013/03/25 CCOS (Computer Control Optical Surfacing) technology is widely used for making aspheric mirrors. For most manufacturers  dwell time algorithm is usually employed to determine the route and dwell time of the small tools to converge the errors. In this article  a novel damp iterative algorithm is proposed. We chose revolutions of the small tool instead of dwell time to determine fabrication stratagem. By using resistance iterative algorithm  we can solve these revolutions. Several mirrors have been manufactured by this method  all of them have fulfilled the demand of the designers  a 1m aspheric mirror was finished within 3 months.