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Proceedings Paper

Light source modulation using light guide rods
Author(s): André Domhardt; Simon Wendel; Udo Rohlfing; Uli Lemmer
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Paper Abstract

Light guide rods based on multiple total internal reflections provide some powerful design opportunities. Therefore, they are very suitable for producing arbitrary light distributions. Especially for LEDs they work highly efficient due to the use of the whole emitted light flux and the theoretical lossless light propagation by total internal reflection. Frequent applications are color mixing and the creation of a homogeneous luminance distribution at the output surface. However, the capabilities of common light guide rods are under-utilized. Therefore, we demonstrate a new design approach that enhances the performance of light guiding systems and is applicable to illumination problems.

Paper Details

Date Published: 20 August 2009
PDF: 11 pages
Proc. SPIE 7423, Nonimaging Optics: Efficient Design for Illumination and Solar Concentration VI, 74230Q (20 August 2009); doi: 10.1117/12.826287
Show Author Affiliations
André Domhardt, Univ. of Karlsruhe (Germany)
Simon Wendel, Univ. of Karlsruhe (Germany)
Udo Rohlfing, Univ. of Applied Sciences Darmstadt (Germany)
Uli Lemmer, Univ. of Karlsruhe (Germany)

Published in SPIE Proceedings Vol. 7423:
Nonimaging Optics: Efficient Design for Illumination and Solar Concentration VI
Roland Winston; Jeffrey M. Gordon, Editor(s)

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