LED/phosphor-LED hybrid lighting systems
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United States of America Patent
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Feb 17, 2004
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app pub date -
Nov 22, 2002
filing date -
Dec 2, 1999
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Abstract
A hybrid lighting system for producing white light including at least one light emitting diode and phosphor-light emitting diode. The hybrid lighting system exhibits improved performance over conventional LED lighting systems that use LEDs or phosphor-LEDs to produce white light. In particular, the hybrid system of the invention permits different lighting system performance parameters to be addressed and optimized as deemed important, by varying the color and number of the LEDs and/or the phosphor of the phosphor LED.
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