Patent ID: 8941329
Filing Date: 2015-01-27
Classification: A61M,A61N,F21K,F21Y,H05B

Abstract:
1. A tunable LED lamp comprising: a housing; a drive circuit disposed within the housing and configured to electrically couple to a power source; 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 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 and a general lighting configuration; wherein in the pre-sleep configuration the drive circuit drives the plurality of LED dies such that a blue output intensity level, in a visible spectral output range of between 380 nm and 485 nm, is less than 10% of a relative spectral power of any other peaks in the visible spectral output above 485 nm.