Lighting device and lighting method

Details Lighting device and lighting method Lighting device and lighting method

2007-05-08

2007-05-08

Husar, Stephen F (Department: 2875)

Illumination

Plural light sources

Particular wavelength

C362S545000, C257S089000, C257S098000, C313S485000, C315S307000

Reexamination Certificate

active

11566440

ABSTRACT:
A lighting device comprising first and second groups of solid state light emitters, which emit light having dominant 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.

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“Cree® XLamp® 7090 XR-E Series LED Binning and Labeling”, CLD-AP08.000, Copyright © 2006 Cree, Inc. 4600 Silicon Drive, Durham, NC 27703, www.cree.com/xlamp, pp. 1-7.

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