Patent ID: 8333631

Claim:
A method of forming a light emitting device assembly, comprising: providing a light emitting device assembly body; defining a chromaticity region in a two dimensional chromaticity space wherein the chromaticity region is defined within a 10-step MacAdam ellipse of a target chromaticity point, and subdividing the defined chromaticity region into at least three chromaticity subregions; providing a plurality of light emitting devices that emit light having a chromaticity that falls within the defined chromaticity region; selecting at least three of the plurality of light emitting devices, wherein each of the three light emitting devices has a chromaticity point in a different one of the chromaticity subregions and wherein the at least three light emitting devices are selected from chromaticity subregions that are complementary relative to the target chromaticity point to at least one other chromaticity subregion from which a light emitting device is selected; and mounting the selected light emitting devices on the light emitting device assembly body, wherein selecting the at least three light emitting devices comprises selecting at least two sets of light emitting devices, wherein each set of light emitting devices comprises at least two light emitting devices selected from chromaticity subregions that are complementary relative to the target chromaticity point, wherein the chromaticity region encompasses a defined bin in the two dimensional chromaticity space, and the defined bin comprises a quadrangle on a two dimensional chromaticity space, wherein each of the at least three chromaticity subregions at least partially overlaps the defined bin.