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Proceedings Paper

A new polarization multiplexing method for the micro LCOS projector optical system
Author(s): Qin-xiao Liu; Wen-zi Zhang; Hui-fang Gao; Fei-hong Yu
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Paper Abstract

In this paper we present a new polarization multiplexing method for the micro LCOS projector optical system. We use calcite to separate the P and S light with respect to the PBS used in the traditional way. The specific method is described as follow: the special lens group or TIR is used to collimate emission ray from the light source. The ray from the lens is changed into approximate parallel light. A convergent component is used to get the convergence light on the exit facet of the calcite. Because of the structure characteristic of the calcite, the angel between optical axis of crystal and cleavage surface is 45 degree. Then we can get two separate convergence light spot on the exit facet of the calcite which stands for the P and S light respectively. The linear half wave plate is used to convert the state of the polarization. Then light pipe and relay imaging lens are used to meet the requirements of the uniformity and incident angle on the micro LCOS chip.

Paper Details

Date Published: 25 November 2009
PDF: 8 pages
Proc. SPIE 7506, 2009 International Conference on Optical Instruments and Technology: Optical Systems and Modern Optoelectronic Instruments, 75061A (25 November 2009); doi: 10.1117/12.837843
Show Author Affiliations
Qin-xiao Liu, Zhejiang Univ. (China)
Wen-zi Zhang, Zhejiang Univ. (China)
Hui-fang Gao, Zhejiang Univ. (China)
Fei-hong Yu, Zhejiang Univ. (China)


Published in SPIE Proceedings Vol. 7506:
2009 International Conference on Optical Instruments and Technology: Optical Systems and Modern Optoelectronic Instruments
Yongtian Wang; Yunlong Sheng; Kimio Tatsuno, Editor(s)

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