Phosphor-converted white light emitting diodes having narrow-band green phosphors
Abstract
In one aspect, a phosphor converted white light LED comprising a narrow green phosphor rather than a conventional broad green phosphor may simultaneously exhibit high R9, and high Luminance Efficacy of Radiation, optionally without use of a deep red phosphor to maintain desired red color rendering. In another aspect, a phosphor converted white light LED comprising a narrow green phosphor rather than a conventional broad green phosphor may provide an emission spectrum exhibiting a significant dip in the yellow region of the spectrum and thereby provide high red-green contrast without use of a filter. The yellow dip may be shallower than in conventional devices, and the device may therefore be brighter, while maintaining desired CRI and R9.
- Inventors:
- Issue Date:
- Research Org.:
- EIE Materials, Inc., Lexington, KY (United States)
- Sponsoring Org.:
- USDOE
- OSTI Identifier:
- 1470732
- Patent Number(s):
- 10056530
- Application Number:
- 15/679,021
- Assignee:
- EIE Materials, Inc. (Lexington, KY)
- Patent Classifications (CPCs):
-
H - ELECTRICITY H01 - BASIC ELECTRIC ELEMENTS H01L - SEMICONDUCTOR DEVICES
- DOE Contract Number:
- EE0007622
- Resource Type:
- Patent
- Resource Relation:
- Patent File Date: 2017 Aug 16
- Country of Publication:
- United States
- Language:
- English
- Subject:
- 36 MATERIALS SCIENCE
Citation Formats
Melman, Jonathan, Nordsell, Robert, Baroudi, Kristen, Thomas, Evan, and Go, Yong Bok. Phosphor-converted white light emitting diodes having narrow-band green phosphors. United States: N. p., 2018.
Web.
Melman, Jonathan, Nordsell, Robert, Baroudi, Kristen, Thomas, Evan, & Go, Yong Bok. Phosphor-converted white light emitting diodes having narrow-band green phosphors. United States.
Melman, Jonathan, Nordsell, Robert, Baroudi, Kristen, Thomas, Evan, and Go, Yong Bok. Tue .
"Phosphor-converted white light emitting diodes having narrow-band green phosphors". United States. https://www.osti.gov/servlets/purl/1470732.
@article{osti_1470732,
title = {Phosphor-converted white light emitting diodes having narrow-band green phosphors},
author = {Melman, Jonathan and Nordsell, Robert and Baroudi, Kristen and Thomas, Evan and Go, Yong Bok},
abstractNote = {In one aspect, a phosphor converted white light LED comprising a narrow green phosphor rather than a conventional broad green phosphor may simultaneously exhibit high R9, and high Luminance Efficacy of Radiation, optionally without use of a deep red phosphor to maintain desired red color rendering. In another aspect, a phosphor converted white light LED comprising a narrow green phosphor rather than a conventional broad green phosphor may provide an emission spectrum exhibiting a significant dip in the yellow region of the spectrum and thereby provide high red-green contrast without use of a filter. The yellow dip may be shallower than in conventional devices, and the device may therefore be brighter, while maintaining desired CRI and R9.},
doi = {},
journal = {},
number = ,
volume = ,
place = {United States},
year = {2018},
month = {8}
}
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