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Proceedings Paper

High performance of color mixing and projection lighting based on color LEDs
Author(s): Wei-Ting Chien; Shin-In Ho; Chang-Yu Tsai; Ching-Cherng Sun
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Paper 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.

Paper Details

Date Published: 19 August 2010
PDF: 5 pages
Proc. SPIE 7786, Current Developments in Lens Design and Optical Engineering XI; and Advances in Thin Film Coatings VI, 778603 (19 August 2010); doi: 10.1117/12.861094
Show Author Affiliations
Wei-Ting Chien, National Central Univ. (Taiwan)
Shin-In Ho, National Central Univ. (Taiwan)
Chang-Yu Tsai, National Central Univ. (Taiwan)
Ching-Cherng Sun, National Central Univ. (Taiwan)


Published in SPIE Proceedings Vol. 7786:
Current Developments in Lens Design and Optical Engineering XI; and Advances in Thin Film Coatings VI
R. Barry Johnson; Virendra N. Mahajan; Simon Thibault, Editor(s)

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