Research on low-polarizing x-plate for LED projector using green phosphors

Yu-Jen Chen; Meng-Chi Li; Chien-Cheng Kuo; June-Jei Huang; Cheng-Chung Lee

doi:10.1117/12.896812

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4 October 2011 Research on low-polarizing x-plate for LED projector using green phosphors

Yu-Jen Chen, Meng-Chi Li, Chien-Cheng Kuo, June-Jei Huang, Cheng-Chung Lee

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Proceedings Volume 8168, Advances in Optical Thin Films IV; 81680H (2011) https://doi.org/10.1117/12.896812
Event: SPIE Optical Systems Design, 2011, Marseille, France

Abstract

We have designed and fabricated the low-polarizing X-plate to increase the luminous throughput for LED projector. We calculate reflectivity characteristic of X-plate as a function of the wavelength at different angles of incidence from air of unpolarized light. A new way to design filter to control the title effect of thin film filters. The wavelength shift of the new design for reflected red filter and reflected blue filter at the angle of 45° ± 8° is 16 nm and 14 nm, respectively.

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Yu-Jen Chen, Meng-Chi Li, Chien-Cheng Kuo, June-Jei Huang, and Cheng-Chung Lee "Research on low-polarizing x-plate for LED projector using green phosphors", Proc. SPIE 8168, Advances in Optical Thin Films IV, 81680H (4 October 2011); https://doi.org/10.1117/12.896812

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