Invention Grant
- Patent Title: Lighting devices with individually compensating multi-color clusters
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Application No.: US13152772Application Date: 2011-06-03
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Publication No.: US10098197B2Publication Date: 2018-10-09
- Inventor: Antony Paul van de Ven , Praneet Jayant Athalye , Michael James Harris
- Applicant: Antony Paul van de Ven , Praneet Jayant Athalye , Michael James Harris
- Applicant Address: US NC Durham
- Assignee: Cree, Inc.
- Current Assignee: Cree, Inc.
- Current Assignee Address: US NC Durham
- Agency: Withrow & Terranova, P.L.L.C.
- Agent Vincent K. Gustafson
- Main IPC: H05B33/08
- IPC: H05B33/08

Abstract:
A lighting device includes multiple solid state emitter (e.g., LED) chips of different colors mounted on a single submount, at least one temperature sensing element arranged to sense temperature of the LED chips, and at least one temperature compensation circuit element mounted on the single submount to maintain output emissions at a substantially constant color point over a range of different temperatures. Such a device may include a blue LED arranged to stimulate a yellow lumiphor and a red LED, arranged in combination to yield warm white light. Multiple separately temperature compensated clusters of solid state emitters may be provided in a single lighting device, which may include an elongated body structure.
Public/Granted literature
- US20120306370A1 LIGHTING DEVICES WITH INDIVIDUALLY COMPENSATING MULTI-COLOR CLUSTERS Public/Granted day:2012-12-06
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