Patent ID: 8547391

Claim:
A signal adapting chromaticity system to control a lighting device comprising: a signal conversion engine that receives a source signal designating a color of light defined by a two spatial plus luminance dimensional color space and converts the source signal to a three dimensional color space defined within a subset gamut of a full color gamut; wherein the signal conversion engine performs a conversion operation to convert the source signal to an output signal, and uses the output signal to drive light emitting diodes (LEDs); and wherein the subset gamut includes a first color light, a second color light and a high efficacy light; and wherein the high efficacy light is defined by a color temperature between 2000K and 100000K; wherein the conversion operation converts the source signal to the output signal by performing a matrix conversion operation; wherein matrices are defined for the two spatial plus luminance dimensional color space included in the source signal; wherein the matrices are inverted to define inverse matrices that are processed to define a scalar including scalar values that are positive and included in the output signal; and wherein the output signal defines the color of the light in the three dimensional color space defined within the subset gamut.