Patent ID: 8866839

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 an angular 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 three dimensional color space defined by the subset gamut is divided from the full color gamut using angular determination to include: an origin including the high efficacy light, primaries including colored light, the primaries defined in the subset gamut including a first subset primary relative to the first color light and a second subset primary relative to the second color light, and a subset gamut angular range included between a first primary angle relative to the first subset primary and a second primary angle relative to the second subset primary; wherein the subset gamut includes a first color light, a second color light and a high efficacy light.