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Theoretical Design Method for Improving the Polarization Performance of LCLV Projection System

Zhou Jie Liu Xu Li Haifeng(State Key Laboratory of Modern Optical Instrumentation, Zhejiang University, Hangzhou 310027)(Received 6 December 2001; revised 8 March 2002)  
The factors affecting the contrast performance of liquid crystal light volve (LCLV) projection system are quantitatively analyzed. A three dimensional mathematic model is built to trace the rays. The effects of wave plates and optical thin films are analyzed based on the theory of Jones matrix and vector optics. The theoretic calculation results of systems with or without wave plates are presented. From these data, it is concluded that wave plates with proper phase changes can greatly improve system contrast.
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