Patent ID: 7997745

Claim:
A lighting device, comprising: a first group of solid state light emitters; and at least a first luminescent material, wherein: at least some of said first group of solid state light emitters are in a first group of packages, each of which also comprises at least some of said first luminescent material; if said first group of solid state light emitters which are in said first group of packages are illuminated, a combined illumination from said first group of packages would, in the absence of any additional light, have u′, v′ color coordinates on a 1976 CIE, Chromaticity Diagram which define a first point; and if said first group of solid state light emitters which are in said first group of packages are illuminated, at least 20% of said first group of packages would emit light having u′, v′ color coordinates on a 1976 CIE Chromaticity Diagram which define respective points which are each spaced from said first point by a distance of not less than 0.10 and not more than 0.30.