Patent ID: 8111011
Filing Date: 2012-02-07
Classification: H05B

Abstract:
1. An LED luminaire apparatus, comprising: an LED light source assembly for producing an optical output; a humidity sensor circuit coupled to the LED light source assembly, wherein the humidity sensor circuit provides a humidity signal, and wherein the humidity signal is a function of humidity proximate to the LED light source assembly; and a driver circuit coupled to the LED light source assembly, wherein the driver circuit provides an adjustable drive signal to the LED light source assembly that dictates a yellow color content of the optical output generated by the LED light source assembly, and wherein the driver circuit is configured to adjust the drive signal to increase the yellow color content as the humidity proximate the LED light source assembly increases, and to decrease the yellow color content as the humidity proximate the LED light source decreases; and a comparator circuit coupled to the humidity sensor circuit and the driver circuit, wherein the comparator circuit provides a bidirectional amber adjustment signal which is a function of a comparison between the humidity signal and a reference signal of known value, and wherein the bidirectional amber adjustment signal is received by the driver circuit.