Patent ID: 9046227
Filing Date: 2015-06-02
Classification: F21K,F21V,F21Y,H01L

Abstract:
1. An illumination system comprising: at least one LED device configured in a housing structure, wherein the at least one LED device comprises an n-type region, a light-emitting active region, and a p-type region; a wavelength conversion material optically coupled to the at least one LED device; and a power source electrically coupled to the at least one LED device; wherein, the at least one LED device is characterized by an external quantum efficiency greater than 45% measured at an ambient temperature of 25° C. and at a current density of 40 A/cm light is emitted by an interaction of electromagnetic radiation emitted from the at least one LED device and the wavelength conversion material; and light emitted by the illumination system is characterized by a spectral power distribution (SPD) in which the fraction of the SPD in the range from about 390 nm to about 430 nm is between 2% and 25%.