Patent ID: 9739444
Date: 2017-08-22
CPC Classifications: F21S,F21V,F21W,F21Y,Y02B,Y10S

Claim:
1. A lighting system comprising: at least one blue emitting light emitting diode (LED) configured to emit blue excitation light having a wavelength ranging from 420 nm to 470 nm; an optical enclosure having a curved surface that at least in part defines a volume in which the at least one LED is located, wherein the optical enclosure is light transmissive and the blue excitation light travels a distance of at least one centimeter in free space from the at least one LED to an inner surface of the optical enclosure; and a first phosphor incorporated in and dispersed throughout the optical enclosure; wherein the first phosphor emits light of a different wavelength in response to incident excitation light, and wherein an emission product of the lighting system comprises combined light from the LED and the first phosphor that passes through the optical enclosure.