Novel concept for large-area light sources: cavity-lit lightguides

Horst Greiner

doi:10.1117/12.479647

16 August 2002 Novel concept for large-area light sources: cavity-lit lightguides

Horst Greiner

Proceedings Volume 4775, Modeling and Characterization of Light Sources; (2002) https://doi.org/10.1117/12.479647
Event: International Symposium on Optical Science and Technology, 2002, Seattle, WA, United States

Abstract

Many illumination tasks require large area light sources, e.g. LCD backlighting or general lighting. Depending on the application these sources have to fulfill criteria concerning uniformity, angular distribution and color of light output, brightness, efficiency, flatness and cost. After discussing established solutions with regard to these requirements, light guides which incorporate light sources like light emitting diodes or thin fluorescent lamps in cavity like recesses are introduced. The advantages of this scheme are flatness, scalability in area and reliance on established sources. This will be demonstrated for large area light sources utilizing high power LEDs or thin fluorescent lamps.

Citation Download Citation

Horst Greiner "Novel concept for large-area light sources: cavity-lit lightguides", Proc. SPIE 4775, Modeling and Characterization of Light Sources, (16 August 2002); https://doi.org/10.1117/12.479647

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