Patent ID: 8018135

Claim:
A lighting device comprising: a first group of non-white light sources, said non-white light sources, when illuminated, emitting light having u′, v′ color coordinates which define a point which is (1) outside an area bounded by a first white-light boundary curve which is 0.01 u′v′ above the planckian blackbody locus and a second white-light boundary curve which is 0.01 u′v′ below the planckian blackbody locus and (2) within an area on a 1976 CIE Chromaticity Diagram enclosed by a first saturated light curve extending along all points representing saturated light having wavelength in the range of from about 430 nm to about 480 nm, a first line segment extending from a point representing saturated light having wavelength of about 480 nm to a point representing saturated light having wavelength of about 560 nm, a second saturated light curve extending along all points representing saturated light having wavelength in the range of from about 560 nm to about 580 nm, and a second line segment extending from a point representing saturated light having wavelength of about 580 nm to a point representing saturated light having wavelength of about 430 nm; a first group of supplemental light emitters, said first group of supplemental light emitters having a dominant emission wavelength in the range of from about 465 nm to about 540 nm; and a second group of supplemental light emitters, said second group of supplemental light emitters having a dominant emission wavelength in the range of from about 600 nm to about 640 nm.