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.: US11948021Application Date: 2007-11-30
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Publication No.: US09084328B2Publication Date: 2015-07-14
- Inventor: Gerald H. Negley , Antony Paul Van De Ven
- Applicant: Gerald H. Negley , Antony Paul Van De Ven
- Applicant Address: US NC Durham
- Assignee: Cree, Inc.
- Current Assignee: Cree, Inc.
- Current Assignee Address: US NC Durham
- Agency: Burr & Brown, PLLC
- Main IPC: F21K2/00
- IPC: F21K2/00 ; H05B33/08 ; F21K99/00 ; F21S6/00 ; F21Y101/02

Abstract:
A lighting device comprising first and second groups of solid state light emitters, which emit light having wavelength in ranges of from 430 nm to 480 nm and from 600 nm to 630 nm, respectively, and a first group of lumiphors which emit light having dominant wavelength in the range of from 555 nm to 585 nm. If current is supplied to a power line, a combination of (1) light exiting the lighting device which was emitted by the first group of emitters, and (2) light exiting the lighting device which was emitted by the first group of lumiphors would, in an absence of any additional light, produce a sub-mixture of light having x, y color coordinates within an area on a 1931 CIE Chromaticity Diagram defined by points having coordinates (0.32, 0.40), (0.36, 0.48), (0.43, 0.45), (0.42, 0.42), (0.36, 0.38). Also provided is a method of lighting.
Public/Granted literature
- US20080130285A1 LIGHTING DEVICE AND LIGHTING METHOD Public/Granted day:2008-06-05
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