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DOE OSTI · 1108603

LED lamp

Galvez, Miguel·Grossman, Kenneth·Betts, David
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Abstract

There is herein described a lamp for providing white light comprising a plurality of light sources positioned on a substrate. Each of said light sources comprises a blue light emitting diode (LED) and a dome that substantially covers said LED. A first portion of said blue light from said LEDs is transmitted through said domes and a second portion of said blue light is converted into a red light by a first phosphor contained in said domes. A cover is disposed over all of said light sources that transmits at least a portion of said red and blue light emitted by said light sources. The cover contains a second phosphor that emits a yellow light in response to said blue light. The red, blue and yellow light combining to form the white light and the white light having a color rendering index (CRI) of at least about 80.

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BibTeXRIS

Galvez, Miguel, Grossman, Kenneth, Betts, David. 2013-11-12. LED lamp. https://www.osti.gov/biblio/1108603

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