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:
- Issue Date:
- Research Org.:
- CREE, INC. Durham, NC (United States)
- Sponsoring Org.:
- USDOE
- OSTI Identifier:
- 1333225
- Patent Number(s):
- 9500325
- Application Number:
- 13/029,025
- Assignee:
- CREE, INC. (Durham, NC)
- Patent Classifications (CPCs):
-
H - ELECTRICITY H01 - BASIC ELECTRIC ELEMENTS H01L - SEMICONDUCTOR DEVICES
F - MECHANICAL ENGINEERING F21 - LIGHTING F21V - FUNCTIONAL FEATURES OR DETAILS OF LIGHTING DEVICES OR SYSTEMS THEREOF
- 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}
}
Works referenced in this record:
Tubular blue LED lamp with remote phosphor
patent, November 2009
- Galvez, Miguel; Anc, Maria; Speer, Richard
- US Patent Document 7,618,157