Patent ID: 9360176
Filing Date: 2016-06-07
CPC Classification: F21K,G02B,H01L

Claim Text:
1. A light source, comprising: a first ultraviolet emitting LED; a layer of phosphor material, the phosphor material adapted to emit light at longer visible wavelengths in response to excitation from the ultraviolet light emitted by the first LED; a dichroic reflector configured to reflect a first portion of the light emitted by the first LED onto the layer of phosphor material in such a way that as light propagates from the first LED to the dichroic reflector it does not pass through the layer of phosphor material, the dichroic reflector substantially transmitting light at the longer visible wavelengths; wherein the dichroic reflector transmits little to no UV light and transmits a substantial portion of blue light emitted by the phosphor material when exposed to UV excitation light.