Patent ID: 7462997
Filing Date: 2008-12-09
Classification: F21K,F21W,F21Y,G09G,H05B,Y02B

Abstract:
1. An illumination apparatus, comprising: a first number of first LED light sources adapted to generate first radiation having a first spectrum; a second number of second LED 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 controller coupled to the first number of first light sources and the second number of second light sources and configured to control at least a first intensity of the first radiation and a second intensity of the second radiation such that an overall perceivable color of visible radiation generated by the apparatus is white; at least one power connection coupled to the at least one controller, the at least one power connection configured to engage mechanically and electrically with a conventional light socket; and at least one of a housing and a mounting for the first and second light sources and the at least one controller, wherein the at least one of the housing and the mounting is configured to resemble at least one type of conventional light bulb, wherein the at least one controller is configured to independently control at least the first intensity of the first radiation and the second intensity of the second radiation so as to controllably vary the overall perceivable color of the visible radiation generated by the illumination apparatus, and wherein the apparatus further comprises: at least one user interface coupled to the at least one controller and configured to facilitate an adjustment of the overall perceivable color of the visible radiation generated by the illumination apparatus.