Use Ray Tracing and Etendue to Design the Illumination Module of Liquid Crystal Projection Displays

• Main Authors: Chia-Yi Wu, 吳佳億
• Other Authors: Ming-Wen Chang
• Format: Others
• Language: zh-TW
• Published: 2001
• Online Access: http://ndltd.ncl.edu.tw/handle/9tvawz

碩士 === 元智大學 === 電機工程研究所 === 89 === Due to the booming development of metal halide arc lamp, the liquid crystal projection display (LCPD) is led to become smaller and cheaper. The arc dimensions of the lamp determine the light source etendue. Once the liquid crystal display (LCD) panel are reduced, if the goal of high optical efficiency is still wanted to be maintained, the influence of source etendue on the high optical efficiency must be assessed. The designs of illumination system of the projector affect the luminance, uniformity, and contrast of the projective quality. The illumination system module of the projector usual includes the arc and reflector combination, lens arrays, and condensers. This thesis provides complete procedures to design the illumination system of the projector. Firstly, the initial illumination system module is derived by means of etendue and ray tracing. Secondly, the initial illumination system module is optimized by using ZEMAX. Finally, the optimized module is confirmed with ASAP.