Patent ID: 8513871

Claim:
A method of selecting combinations of a plurality of light emitters, the method comprising: grouping the plurality of emitters into a plurality of bins corresponding to a plurality of emitter group regions in a multiple axis color space and a plurality of luminosity ranges, each of the plurality of emitter group regions defining a range of chromaticities distinct from chromaticities of other of the plurality of emitter group regions, each of the plurality of bins corresponding to a different combination of one of the plurality of luminosity ranges and one of the plurality of emitter group regions; determining a plurality of chromaticities corresponding to a center point in each of the plurality of emitter group regions, each of the plurality of chromaticities including a plurality of chromaticity component values corresponding to the multiple axis color space; defining a desired color region in the multiple axis color space; estimating a combined chromaticity corresponding to a combination center point for each of a plurality of N-bin combinations, N defining the number of the plurality of bins that are combined to estimate each of the combination center points; estimating a combined luminosity corresponding to the combination center point for each of the plurality of N-bin combinations; comparing the combined chromaticity of each of the plurality of combination center points to the desired color region; and selecting combinations of the plurality of light emitters responsive to comparing the combined chromaticity of each of the plurality of combination center points to the desired color region.