Patent ID: 8686641
Filing Date: 2014-04-01
Classification: A61M,A61N,F21K,F21Y,H05B

Abstract:
1. A tunable LED lamp for producing a biologically-adjusted light output with a color rendering index above 70, comprising: a base; a housing attached to the base; a power circuit disposed within the housing and having electrical leads attached to the base; a drive circuit disposed within the housing and electrically coupled to the power circuit; a heat sink disposed about the housing; a plurality of LED dies mounted on a support coupled to the housing, wherein each of the plurality of LED dies is electrically coupled to and driven by the drive circuit, and wherein the plurality of LED dies includes a ratio of an output-select controller electrically coupled to the drive circuit to program the drive circuit to drive the LED dies in one of a plurality of light output configurations, wherein the plurality of light output configurations includes a pre-sleep configuration, a phase-shift configuration, and a general lighting configuration.