High performance of color mixing and projection lighting based on color LEDs

Wei-Ting Chien; Shin-In Ho; Chang-Yu Tsai; Ching-Cherng Sun

doi:10.1117/12.861094

19 August 2010 High performance of color mixing and projection lighting based on color LEDs

Wei-Ting Chien, Shin-In Ho, Chang-Yu Tsai, Ching-Cherng Sun

Proceedings Volume 7786, Current Developments in Lens Design and Optical Engineering XI; and Advances in Thin Film Coatings VI; 778603 (2010) https://doi.org/10.1117/12.861094
Event: SPIE Optical Engineering + Applications, 2010, San Diego, California, United States

Abstract

In this paper, we propose and demonstrate a novel design to make color mixing and projection of RGB LEDs. The optical elements include a high reflective light pipe, a volume scattering diffuser and a TIR lens. The system optical efficiency is around 46 % while the color is well mixing for the cases at the CCTs of 6500K, 4500K and 3000K.

Citation Download Citation

Wei-Ting Chien, Shin-In Ho, Chang-Yu Tsai, and Ching-Cherng Sun "High performance of color mixing and projection lighting based on color LEDs", Proc. SPIE 7786, Current Developments in Lens Design and Optical Engineering XI; and Advances in Thin Film Coatings VI, 778603 (19 August 2010); https://doi.org/10.1117/12.861094

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