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Proceedings Paper

Side-emitting high-power LEDs and their application in illumination
Author(s): Robert Scott West
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Paper Abstract

Due to the rapid increase in flux performance from High Power LED's, illumination is an exciting growth market for solid state lighting. Today a white LED is 100+ Lm per device. This is approximately an order of magnitude below the kLm metric used for illumination applications. The radiation pattern from the LED is key in increasing the usable flux resulting in improved systems optical performance. This advancement in radiation pattern will allow new market opportunities, which were not yet feasible. In the future this effect of usable lumens will become more important as the flux per package increases. The radiation pattern of the LEDs can be controlled to optimize performance, appearance, and shape of the secondary optics. This advantage is unique to LEDs and can greatly improve system performance, control, and cosmetic appeal for the application. This paper will review the side emitting lens design, the integrated performance of this technology to secondary optics and how the Luxeon side emitter enables improved performance by creating more useable lumens.

Paper Details

Date Published: 26 November 2002
PDF: 5 pages
Proc. SPIE 4776, Solid State Lighting II, (26 November 2002); doi: 10.1117/12.457155
Show Author Affiliations
Robert Scott West, Lumileds Lighting Inc. (United States)


Published in SPIE Proceedings Vol. 4776:
Solid State Lighting II
Ian T. Ferguson; Nadarajah Narendran; Steven P. DenBaars; Yoon-Soo Park, Editor(s)

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