Journal
JOURNAL OF LIGHTWAVE TECHNOLOGY
Volume 29, Issue 15, Pages 2285-2291Publisher
IEEE-INST ELECTRICAL ELECTRONICS ENGINEERS INC
DOI: 10.1109/JLT.2011.2158987
Keywords
Light-emitting diodes; simulation; solid state lighting
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We present an optical ray-tracing study which investigates the influence of the refractive indexes of the matrix and the phosphor materials as well as the phosphor particle sizes of the color conversion elements (CCE) on the radiant flux of phosphor-conversion-based white light-emitting diodes. We show that an appropriate combination of those parameters is a crucial factor in order to optimize device efficacy.
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