An overview of LED applications for general illumination

David G. Pelka; Kavita Patel

doi:10.1117/12.509164

12 November 2003 An overview of LED applications for general illumination

David G. Pelka, Kavita Patel

Proceedings Volume 5186, Design of Efficient Illumination Systems; (2003) https://doi.org/10.1117/12.509164
Event: Optical Science and Technology, SPIE's 48th Annual Meeting, 2003, San Diego, California, United States

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

Citation Download Citation

David G. Pelka and Kavita Patel "An overview of LED applications for general illumination", Proc. SPIE 5186, Design of Efficient Illumination Systems, (12 November 2003); https://doi.org/10.1117/12.509164

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