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Proceedings Paper

Performance and trends of high power light emitting diodes
Author(s): Serge Bierhuizen; Michael Krames; Gerard Harbers; Gon Weijers
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Paper Abstract

We will discuss the performance, progress and trend of High Power Light Emitting Diodes (HP-LEDs), suitable for high luminance applications like micro-display projection, car headlamps, spot lamps, theatre lamps, etc. Key drivers for the high luminance applications are LED parameters such as internal quantum efficiency, extraction efficiency, drive current, operating temperature and optical coupling efficiency, which are important for most applications as they also enable higher lumen/$ ratios. Historical progress, prospects for improving these parameters and potential optical luminance enhancement methods to meet the demands for the various illumination applications are presented.

Paper Details

Date Published: 14 September 2007
PDF: 12 pages
Proc. SPIE 6669, Seventh International Conference on Solid State Lighting, 66690B (14 September 2007); doi: 10.1117/12.735102
Show Author Affiliations
Serge Bierhuizen, Philips Lumileds Lighting Co. (United States)
Michael Krames, Philips Lumileds Lighting Co. (United States)
Gerard Harbers, Xicato Inc. (United States)
Gon Weijers, Philips Lighting ADL (Netherlands)


Published in SPIE Proceedings Vol. 6669:
Seventh International Conference on Solid State Lighting
Ian T. Ferguson; Nadarajah Narendran; Tsunemasa Taguchi; Ian E. Ashdown, Editor(s)

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