| Design of twin computer-generated hologram for absolute testing of aspheric surfaces | |
| Feng, Jie1,2; Deng, Chao1; Xing, Tingwen1 | |
| Volume | 9282 |
| Pages | 92821M |
| 2014 | |
| Language | 英语 |
| ISSN | 0277786X |
| DOI | 10.1117/12.2068507 |
| Indexed By | Ei |
| Subtype | 会议论文 |
| Abstract | Testing of aspheric surfaces by means of computer-generated holograms(CGHs)is well known. To perform an absolute test of rotationally symmetric aspheric surfaces, a specially designed computer-generated hologram (CGH) that reconstructs an aspherical wave as well as a spherical auxiliary wave. Since both phase functions have the same symmetry and their pattern is simultaneously encoded, we call this type of multiplex hologram a Twin-CGH. The spherical wave is used for calibration. The design principle of Twin-CGH is introduced in this paper. We mathematically analyze the Twin-CGH constructed by taking the phase corresponding to the linear combination of two weighted phase functions. We show that this Twin-CGH may be written as a new linear combination for the original phase functions with new weights. Then we absolutely test aspheric surfaces by Twin-CGH. © 2014 SPIE.; Testing of aspheric surfaces by means of computer-generated holograms(CGHs)is well known. To perform an absolute test of rotationally symmetric aspheric surfaces, a specially designed computer-generated hologram (CGH) that reconstructs an aspherical wave as well as a spherical auxiliary wave. Since both phase functions have the same symmetry and their pattern is simultaneously encoded, we call this type of multiplex hologram a Twin-CGH. The spherical wave is used for calibration. The design principle of Twin-CGH is introduced in this paper. We mathematically analyze the Twin-CGH constructed by taking the phase corresponding to the linear combination of two weighted phase functions. We show that this Twin-CGH may be written as a new linear combination for the original phase functions with new weights. Then we absolutely test aspheric surfaces by Twin-CGH. © 2014 SPIE. |
| Conference Name | Proceedings of SPIE: 7th International Symposium on Advanced Optical Manufacturing and Testing Technologies: Optical Test and Measurement Technology and Equipment |
| Conference Date | 2014 |
| Citation statistics | |
| Document Type | 会议论文 |
| Identifier | http://ir.ioe.ac.cn/handle/181551/7491 |
| Collection | 应用光学研究室（二室） |
| Corresponding Author | Feng, Jie |
| Affiliation | 1. Laboratory of Applied Optics, Institute of Optics and Electronics, Chinese Academy of Sciences, Chengdu, China 2. University of Chinese Academy of Sciences, Beijing, China |
| Recommended Citation GB/T 7714 | Feng, Jie,Deng, Chao,Xing, Tingwen. Design of twin computer-generated hologram for absolute testing of aspheric surfaces[C],2014:92821M. |
| Files in This Item: | ||||||
| File Name/Size | DocType | Version | Access | License | ||
| 2014-2128.pdf（349KB） | 会议论文 | 开放获取 | CC BY-NC-SA | Application Full Text | ||
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