Invention Grant
- Patent Title: Solid state light fixtures suitable for high temperature operation having separate blue-shifted-yellow/green and blue-shifted-red emitters
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Application No.: US15697626Application Date: 2017-09-07
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Publication No.: US10008484B2Publication Date: 2018-06-26
- Inventor: Michael John Bergmann , Florin Tudorica , P. Joseph DeSena
- Applicant: Cree, Inc.
- Applicant Address: US NC Durham
- Assignee: Cree, Inc.
- Current Assignee: Cree, Inc.
- Current Assignee Address: US NC Durham
- Agency: Myers Bigel, P.A.
- Main IPC: H01L33/62
- IPC: H01L33/62 ; H01L27/146 ; H01L33/50 ; H01L25/075 ; H05B33/08 ; F21K9/232 ; F21K9/62 ; F21K9/66 ; F21K9/68 ; F21Y103/10 ; F21Y115/10 ; F21K9/27
Abstract:
Solid state light fixtures include a plurality of blue-shifted-yellow/green light emitting diode (“LED”) packages and a plurality of blue-shifted-red LED packages, where the solid state light fixture emits light having a correlated color temperature of between 1800 K and 5500 K, a CRI value of between 80 and 99, a CRI R9 value of between 15 and 75, and a Qg value of between 90 and 110 when the blue-shifted-yellow/green LED packages and the blue-shifted-red LED packages are operating at steady-state operating temperatures of at least 80° C.
Public/Granted literature
Information query
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