Inventors
Nicholas W Medendorp, Mark McClear, Bernd P Keller, George R Brandes, Ronan P LeToquin
Publication date
2012/2/28
Patent office
US
Patent number
8125137
Application number
11743324
Description
(57) ABSTRACT A multi-chip lighting emitting device (LED) lamp for pro viding white light includes a Submount including first and second die mounting regions thereon. A first LED chip is mounted on the first die mounting region, and a second LED chip is mounted on the second die mounting region. The LED lamp is configured to emit light having a spectral distribution including at least four different color peaks to provide the white light. For example, a first conversion material may at least partially cover the first LED chip, and may be configured to absorb at least some of the light of the first colorand re-emit light of a third color. In addition, a second conversion material may at least partially cover the first and/or second LED chips, and may be configured to absorb at least Some of the light of the first and/or second colors and re-emit light of a fourth color. Related light fixtures and methods are also discussed.
Total citations
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