题名: | Design of twin computer-generated hologram for absolute testing of aspheric surfaces |
作者: | Feng, Jie1,2; Deng, Chao1; Xing, Tingwen1
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出版日期: | 2014
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会议名称: | Proceedings of SPIE: 7th International Symposium on Advanced Optical Manufacturing and Testing Technologies: Optical Test and Measurement Technology and Equipment
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会议日期: | 2014
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学科分类: | Aspherics - Electron holography - Holograms - Lithography - Manufacture - Optical testing
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DOI: | 10.1117/12.2068507
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通讯作者: | Feng, Jie
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中文摘要: | 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. |
英文摘要: | 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. |
收录类别: | Ei
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语种: | 英语
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卷号: | 9282
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ISSN号: | 0277786X
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文章类型: | 会议论文
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页码: | 92821M
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Citation statistics: |
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内容类型: | 会议论文
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URI标识: | http://ir.ioe.ac.cn/handle/181551/7491
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Appears in Collections: | 应用光学研究室(二室)_会议论文
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2014-2128.pdf(349KB) | 会议论文 | -- | 限制开放 | | View
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作者单位: | 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
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Recommended Citation: |
Feng, Jie,Deng, Chao,Xing, Tingwen. Design of twin computer-generated hologram for absolute testing of aspheric surfaces[C]. 见:Proceedings of SPIE: 7th International Symposium on Advanced Optical Manufacturing and Testing Technologies: Optical Test and Measurement Technology and Equipment. 2014.
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