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Title: Light source and method for making a light source

Patent ·
OSTI ID:1637798

A light source fabrication process to fabricate a customized light source includes attaching a plurality of light emitting diodes to a circuit board, where each light emitting diode is configured to emit light within a same wavelength range. Further, the light source fabrication process includes applying a first phosphor layer to a first set of light emitting diodes of the plurality of light emitting diodes and applying a second phosphor layer to a second set of light emitting diodes of the plurality of light emitting diodes. The phosphor layers are applied to the light emitting diodes using one of a screen printing process and an inkjet printing process. The first phosphor layer is different from and has different optical properties from the second phosphor layer.

Research Organization:
Eaton Intelligent Power Ltd., Dublin (Ireland)
Sponsoring Organization:
USDOE
DOE Contract Number:
EE0006260
Assignee:
Eaton Intelligent Power Limited (Dublin, IE)
Patent Number(s):
10,598,318
Application Number:
15/622,373
OSTI ID:
1637798
Resource Relation:
Patent File Date: 06/14/2017
Country of Publication:
United States
Language:
English

References (13)

Lighting device with light modulation for white light patent January 2013
Light emitting device having plural light-emitting sections with resin walls within resin frame patent May 2014
Stenciling phosphor layers on light emitting diodes patent November 2003
Phosphor placement in white light emitting diode assemblies patent September 2013
Light Emitting Device patent-application October 2013
Wavelength converted semiconductor light emitting devices patent July 2007
Variable color light emitting diode patent February 1991
Recipient luminophoric mediums having narrow spectrum luminescent materials and related semiconductor light emitting devices and methods patent December 2014
Light emitting device and illumination apparatus patent September 2014
Enhanced color rendering index emitter through phosphor separation patent March 2016
Solid State Lighting Devices with Color Point Non-Coincident with Blackbody Locus patent-application November 2015
System and method for providing color light sources in proximity to predetermined wavelength conversion structures patent June 2014
Light emitting device and system providing white light with various color temperatures patent October 2012

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