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Title: LED lamp

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.

Inventors:
; ;
Publication Date:
Research Org.:
Osram Sylvania Inc., Danvers, MA, USA
Sponsoring Org.:
USDOE
OSTI Identifier:
1108603
Patent Number(s):
8,579,451
Application Number:
13/233,592
Assignee:
Osram Sylvania Inc. (Danvers, MA) DOEEE
DOE Contract Number:
EE0003241
Resource Type:
Patent
Country of Publication:
United States
Language:
English
Subject:
47 OTHER INSTRUMENTATION

Citation Formats

Galvez, Miguel, Grossman, Kenneth, and Betts, David. LED lamp. United States: N. p., 2013. Web.
Galvez, Miguel, Grossman, Kenneth, & Betts, David. LED lamp. United States.
Galvez, Miguel, Grossman, Kenneth, and Betts, David. Tue . "LED lamp". United States. doi:. https://www.osti.gov/servlets/purl/1108603.
@article{osti_1108603,
title = {LED lamp},
author = {Galvez, Miguel and Grossman, Kenneth and Betts, David},
abstractNote = {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.},
doi = {},
journal = {},
number = ,
volume = ,
place = {United States},
year = {Tue Nov 12 00:00:00 EST 2013},
month = {Tue Nov 12 00:00:00 EST 2013}
}

Patent:

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