Patent ID: 9024536
Filing Date: 2015-05-05
Classification: A61M,A61N,F21K,F21V,F21Y,H05B,Y02B

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, the plurality of light output configurations comprising a pre-sleep configuration and a general lighting configuration; wherein the plurality of LED dies comprises one or more LED dies of a first spectral output having a peak wavelength between 500 nm and 600 nm, one or more LED dies of a second spectral output having a peak wavelength greater than 600 nm, one or more first blue LED dies having a peak wavelength within the range from 420 nm to 480 nm, and one or more second blue LED dies having a peak wavelength below 420 nm; wherein the drive circuit is configured to operate each of the LED dies of the first spectral output, the LED dies of the second spectral output, and the second blue LED dies in the pre-sleep lighting configuration; and wherein the drive circuit is configured to operate each of the LED dies of the first spectral output, the LED dies of the second spectral output, and the first blue LED dies in the general lighting configuration.