Patent ID: 9241384
Filing Date: 2016-01-19
CPC Classification: H01L,H05B

Claim Text:
1. A solid state lighting device comprising: a first electrically activated solid state emitter; a second electrically activated solid state emitter; and a control circuit configured to adjust aggregated light emissions of the solid state lighting device to move between at least two color points; wherein at least a first color point of the at least two color points embodies a combination of light exiting the solid state lighting device that was emitted by the first electrically activated solid state emitter and the second electrically activated solid state emitter that produces, in the absence of any additional light, aggregated light emissions (i) having a luminous efficacy of at least 60 lumens per watt, and (ii) having (x, y) coordinates on a 1931 CIE Chromaticity Diagram that define a point on or within 7 MacAdam ellipses of a white body locus embodying a line including segments defined by the following x, y coordinates on a 1931 CIE Chromaticity Diagram: (0.3114, 0.3386) to (0.3462, 0.3631), (0.3462, 0.3631) to (0.3777, 0.3790), (0.3777, 0.3790) to (0.3977, 0.3707), (0.3977, 0.3707) to (0.4211, 0.3713), and (0.4211, 0.3713) to (0.4437, 0.3808).