Xi'an Institute of Optics and Precision Mechanics,CAS
| Investigation of dwell time based on lucy-richardson algorithm and gercherg surface continuation algorithm | |
Qian, XinJie1,2; Ma, Zhen1 ; Yao, Yongsheng1,2; Shen, Le1
| |
| 2020 | |
| 会议名称 | 2020 Applied Optics and Photonics China: Optics Ultra Precision Manufacturing and Testing, AOPC 2020 |
| 会议录名称 | AOPC 2020: Optics Ultra Precision Manufacturing and Testing |
| 卷号 | 11568 |
| 会议日期 | 2020-06-29 |
| 会议地点 | Shanghai, China |
| 出版者 | SPIE |
| 产权排序 | 1 |
| 摘要 | Computer-controlled optical surface forming technology (CCOS) can greatly improve the processing accuracy and processing efficiency of optical mirrors. The most critical problem is the solution of dwell time, which will directly affect the final convergence of the surface shape. it is found through analysis that the solution of the dwell time is a deconvolution process, which is the same as the mathematical model of the Lucy-Richardson algorithm in image restoration technology, so the algorithm can be applied to Solution of dwell time; At the same time, in order to eliminate the high-frequency shape errors caused by discontinuities at the edges of the face shapes, the original shapes need to be extended to achieve smooth connections. The two-dimensional Gercherg bandwidth-limited continuation algorithm can achieve this requirement. The simulation results show that the root mean square value (rms) and peak-valley value (pv) converge from the initial 0.2534λ, 1.494λ (λ=632.8nm) to 0.0158λ and 0.393λ, which proves the effectiveness of the algorithm. Compared with the Lucy-Richardson algorithm, other traditional solving methods have simpler calculation process, higher calculation efficiency, and higher convergence rate. © 2020 SPIE. All rights reserved. |
| 关键词 | Dwell time Lucy-Richardson algorithm Edge continuation Gerchberg extrapolation algorithm Optical processing |
| 作者部门 | 先进光学元件试制中心 |
| DOI | 10.1117/12.2579836 |
| 收录类别 | EI ; CPCI |
| ISBN号 | 9781510639577 |
| 语种 | 英语 |
| ISSN号 | 0277786X;1996756X |
| WOS记录号 | WOS:000616198900039 |
| EI入藏号 | 20204909580450 |
| 引用统计 | |
| 文献类型 | 会议论文 |
| 条目标识符 | http://ir.opt.ac.cn/handle/181661/94435 |
| 专题 | 先进光学元件试制中心 |
| 作者单位 | 1.Xi'an Institute of Optics and Precision Mechanics, Chinese Academy of Science, Xi'an 710119, China; 2.University of Chinese Academy of Science, Beijing; 100049, China |
| 推荐引用方式 GB/T 7714 | Qian, XinJie,Ma, Zhen,Yao, Yongsheng,et al. Investigation of dwell time based on lucy-richardson algorithm and gercherg surface continuation algorithm[C]:SPIE,2020. |
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| Investigation of dwe（757KB） | 会议论文 | 开放获取 | CC BY-NC-SA | 请求全文 | ||
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