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Title: LED lamp incorporating remote phosphor with heat dissipation features

Abstract

An LED lamp or bulb is disclosed that comprises a light source, a heat sink structure and a remote planar phosphor carrier having at least one conversion material. The phosphor carrier can be remote to the light sources and mounted to the heat sink so that heat from the phosphor carrier spreads into the heat sink. The phosphor carrier can comprise a thermally conductive transparent material and a phosphor layer, with an LED based light source mounted to the heat sink such that light from the light source passes through the phosphor carrier. At least some of the LED light is converted by the phosphor carrier, with some lamp embodiments emitting a white light combination of LED and phosphor light. The phosphor arranged according to the present invention can operate at lower temperature to thereby operate at greater phosphor conversion efficiency and with reduced heat related damage to the phosphor.

Inventors:
; ; ;
Publication Date:
Research Org.:
CREE, INC. Durham, NC (United States)
Sponsoring Org.:
USDOE
OSTI Identifier:
1333225
Patent Number(s):
9,500,325
Application Number:
13/029,025
Assignee:
CREE, INC. (Durham, NC) NETL
DOE Contract Number:  
FC26-08NT01577
Resource Type:
Patent
Resource Relation:
Patent File Date: 2011 Feb 16
Country of Publication:
United States
Language:
English
Subject:
36 MATERIALS SCIENCE

Citation Formats

Tong, Tao, Letoquin, Ronan, Keller, Bernd, and Tarsa, Eric. LED lamp incorporating remote phosphor with heat dissipation features. United States: N. p., 2016. Web.
Tong, Tao, Letoquin, Ronan, Keller, Bernd, & Tarsa, Eric. LED lamp incorporating remote phosphor with heat dissipation features. United States.
Tong, Tao, Letoquin, Ronan, Keller, Bernd, and Tarsa, Eric. Tue . "LED lamp incorporating remote phosphor with heat dissipation features". United States. https://www.osti.gov/servlets/purl/1333225.
@article{osti_1333225,
title = {LED lamp incorporating remote phosphor with heat dissipation features},
author = {Tong, Tao and Letoquin, Ronan and Keller, Bernd and Tarsa, Eric},
abstractNote = {An LED lamp or bulb is disclosed that comprises a light source, a heat sink structure and a remote planar phosphor carrier having at least one conversion material. The phosphor carrier can be remote to the light sources and mounted to the heat sink so that heat from the phosphor carrier spreads into the heat sink. The phosphor carrier can comprise a thermally conductive transparent material and a phosphor layer, with an LED based light source mounted to the heat sink such that light from the light source passes through the phosphor carrier. At least some of the LED light is converted by the phosphor carrier, with some lamp embodiments emitting a white light combination of LED and phosphor light. The phosphor arranged according to the present invention can operate at lower temperature to thereby operate at greater phosphor conversion efficiency and with reduced heat related damage to the phosphor.},
doi = {},
journal = {},
number = ,
volume = ,
place = {United States},
year = {2016},
month = {11}
}

Patent:

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