Invention Grant
- Patent Title: Lighting device and lighting method
- Patent Title (中): 照明装置和照明方法
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Application No.: US11951626Application Date: 2007-12-06
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Publication No.: US07918581B2Publication Date: 2011-04-05
- Inventor: Antony Paul Van De Ven , Gerald H. Negley
- Applicant: Antony Paul Van De Ven , Gerald H. Negley
- Applicant Address: US NC Durham
- Assignee: Cree, Inc.
- Current Assignee: Cree, Inc.
- Current Assignee Address: US NC Durham
- Agency: Burr & Brown
- Main IPC: F21V9/00
- IPC: F21V9/00

Abstract:
A lighting device comprising first, second and third groups of solid state light emitters, and first and second groups of lumiphors. A mixture of light emitted from the first group of emitters and the first group of lumiphors has x,y color coordinates within an area defined by coordinates (0.36,0.48), (0.43,0.45), (0.5125,0.4866), and (0.4087,0.5896) (or (0.41,0.455), (0.36,0.48), (0.4087,0.5896), and (0.4788,0.5202)). A mixture of light emitted from the second group of emitters and the second group of lumiphors is within an area defined by (0.32,0.40), (0.36,0.38), (0.30,0.26), and (0.25,0.29). A mixture of light from the first and second groups of emitters and the first and second groups of lumiphors is within an area defined by (0.32,0.40), (0.36,0.48), (0.43,0.45), (0.42,0.42), and (0.36,0.38) (or (0.32,0.40), (0.36,0.38), (0.41,0.455), and (0.36,0.48)). A mixture of light from all of these emitters and lumiphors is within ten MacAdam ellipses of the blackbody locus. Also, methods of lighting.
Public/Granted literature
- US20080136313A1 LIGHTING DEVICE AND LIGHTING METHOD Public/Granted day:2008-06-12
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