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Proceedings Paper

White-light-emitting diodes for illumination
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Paper Abstract

White light for illumination can be produced from LEDs either by combining red, green and blue emitting chips in one lamp, or by using phosphors to down-convert the emission of short wavelength emitting InGaN LEDs. Both concepts will be critically reviewed, and simulations compared with experimental evaluations. As expected, each solution has advantages, but also drawbacks, which are weighted by the specifics of the applications. The overall picture strongly depends on the efficiencies of the single color chips, the temperature coefficients of all involved materials, and the wanted light output per lamp.

Paper Details

Date Published: 17 April 2000
PDF: 12 pages
Proc. SPIE 3938, Light-Emitting Diodes: Research, Manufacturing, and Applications IV, (17 April 2000); doi: 10.1117/12.382840
Show Author Affiliations
Regina Mueller-Mach, Agilent Technologies (United States)
Gerd O. Mueller, Agilent Technologies (United States)


Published in SPIE Proceedings Vol. 3938:
Light-Emitting Diodes: Research, Manufacturing, and Applications IV
H. Walter Yao; Ian T. Ferguson; E. Fred Schubert, Editor(s)

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