Patent ID: 9068702
Filing Date: 2015-06-30
Classification: C09K,F21K,F21V,F21Y,Y10S

Abstract:
1. An apparatus comprising: at least one Light Emitting Diode (LED) operable to emit a first colored light characterized by an emission spectrum with a peak wavelength between 380 nanometers and 490 nanometers; and a primary light mixing cavity operable to convert the first colored light to a second colored light, wherein a portion of the primary light mixing cavity that is physically separated from the at least one LED includes a first photo-luminescent material with a peak emission wavelength between 508 and 528 nanometers and a second photo-luminescent material with a peak emission wavelength between 615 and 655 nanometers, wherein a spectral response of the second colored light is within 20% of a blackbody radiator of the same correlated color temperature for wavelengths between 500 and 650 nanometers.