Invention Grant
- Patent Title: Enhanced color-preference LED light sources using YAG, nitride, and PFS phosphors
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Application No.: US16538781Application Date: 2019-08-12
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Publication No.: US10833228B2Publication Date: 2020-11-10
- Inventor: Kevin James Vick , Gary Robert Allen , Ashfaqul I. Chowdhury
- Applicant: Consumer Lighting (U.S.), LLC
- Applicant Address: US CT Norwalk
- Assignee: Consumer Lighting (U.S.), LLC
- Current Assignee: Consumer Lighting (U.S.), LLC
- Current Assignee Address: US CT Norwalk
- Agency: Wood IP LLC
- Main IPC: H01L33/50
- IPC: H01L33/50 ; C09K11/64

Abstract:
Aspects of the present disclosure are directed to a composite light source which includes at least one blue light source having peak wavelength in the range of about 400 nm to about 460 nm; at least one yellow-green garnet phosphor; and at least one narrow-band red-emitting down-converter. Such composite light source may have a Lighting Preference Index (LPI) of at least 120. In other aspects the disclosure is directed to composite light source comprising at least one blue light source having peak wavelength in the range of about 400 nm to about 460 nm; at least one yellow-green garnet phosphor; and at least one broad red down-converter. In this latter aspect the composite light source may have a Lighting Preference Index (LPI) of at least 120. Numerous other aspects are provided.
Public/Granted literature
- US20200083407A1 ENHANCED COLOR-PREFERENCE LED LIGHT SOURCES USING YAG, NITRIDE, AND PFS PHOSPHORS Public/Granted day:2020-03-12
Information query
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