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Proceedings Paper

An overview of LED applications for general illumination
Author(s): David G. Pelka; Kavita Patel
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Paper Abstract

This paper begins by reviewing the current state of development of LEDs, their existing markets as well as their potential for energy conservation and their potential for gaining market share in the general illumination market. It discusses LED metrics such as chip size, lumens per watt, thermal resistance, and the recommended maximum current rating. The paper then goes on to consider the importance of non-imaging optics for both optically efficient and extremely compact LED lighting systems. Finally, microstructures useful for controlling the fields-of-view of LED lighting systems are considered and described in some detail. An extremely efficient and cost effective microstructure, called kinoform diffusers, is shown to have very unique properties that make this technology almost ideal for shaping the output beams of LED lighting systems. It concludes by illustrating some general illumination LED lighting systems

Paper Details

Date Published: 12 November 2003
PDF: 12 pages
Proc. SPIE 5186, Design of Efficient Illumination Systems, (12 November 2003); doi: 10.1117/12.509164
Show Author Affiliations
David G. Pelka, Tailored Optics, Inc. (United States)
Kavita Patel, Wavefront Technology, Inc. (United States)

Published in SPIE Proceedings Vol. 5186:
Design of Efficient Illumination Systems
R. John Koshel, Editor(s)

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