Patent ID: 7274160

Claim:
An illumination apparatus, comprising: a first number of first light sources adapted to generate first radiation having a first spectrum; a second number of second light sources adapted to generate second radiation having a second spectrum different than the first spectrum, wherein the first number and the second number are different; at least one structure coupled to the first number of first light sources and the second number of second light sources so as to facilitate a mixing of the first radiation and the second radiation; and at least one controller coupled to the first number of first light sources and the second number of second light sources and configured to independently control at least a first intensity of the first radiation and a second intensity of the second radiation so as to controllably vary at least an overall perceivable color of the visible radiation generated by the illumination apparatus, wherein the apparatus is configured to provide ambient illumination including visible radiation in an environment to be occupied by an observer of the ambient illumination, the visible radiation including at least one of the first radiation and the second radiation, and wherein the at least one controller is configured as an addressable controller capable of receiving at least one network signal including at least first lighting information relating to the overall perceivable color of the visible radiation generated by the illumination apparatus.