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41.1 WITHDRAWN 41.2: Invited Paper : Phosphor Mixtures for White LEDs
Author(s) -
Winkler Holger,
Benker Andreas,
Hampel Christof,
Petry Ralf
Publication year - 2012
Publication title -
sid symposium digest of technical papers
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.351
H-Index - 44
eISSN - 2168-0159
pISSN - 0097-966X
DOI - 10.1002/j.2168-0159.2012.tb05841.x
Subject(s) - phosphor , light emitting diode , luminescence , materials science , optoelectronics , white light , led lamp , optics , computer science , physics
Abstract White phosphor converted LEDs have become an important technology for innovative lighting applications. This paper compares white LEDs that were built by using only one phosphor (dichromatic concept) with LEDs employing mixtures of two phosphors (trichromatic LEDs), a green and a red luminescent material, and discusses the impact of these concepts on the quality of light, in particular the differences in color rendition.