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Proceedings Paper

Test aspheric with CGH based on a liquid crystal display
Author(s): QingKui Xi; Rihong Zhu; Zhishan Gao; Lei Chen; Xueliang Bai; Yunchen Li
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Paper Abstract

A combination of computer generated hologram (CGH) with a small liquid crystal display, phase-shifting detection, and Twyman-Green interferometer is used to test an aspheric. This method resolves the problem of real-time produce CGH. In the paper, a method of producing real-time computer generated hologram is proposed in which a small liquid crystal display is adopted as a recording material. The making principle of the real-time computer generated hologram is described. The experimental result is better.

Paper Details

Date Published: 10 February 2005
PDF: 4 pages
Proc. SPIE 5638, Optical Design and Testing II, (10 February 2005); doi: 10.1117/12.574373
Show Author Affiliations
QingKui Xi, Nanjing Univ. of Science and Technology (China)
Rihong Zhu, Nanjing Univ. of Science and Technology (China)
Zhishan Gao, Nanjing Univ. of Science and Technology (China)
Lei Chen, Nanjing Univ. of Science and Technology (China)
Xueliang Bai, Nanjing Univ. of Science and Technology (China)
Yunchen Li, Nanjing Univ. of Science and Technology (China)


Published in SPIE Proceedings Vol. 5638:
Optical Design and Testing II
Yongtian Wang; Zhicheng Weng; Shenghua Ye; Jose M. Sasian, Editor(s)

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