Patent ID: 9219201
Filing Date: 2015-12-22
Classification: C09K,H01L

Abstract:
1. A light emitting device, comprising: a blue light emitting diode (“LED”) that emits light having a peak wavelength between 430 nanometers and 480 nanometers; and a recipient luminophoric medium that is configured to down-convert at least some of the blue light emitted by the blue LED, the recipient luminophoric medium including luminescent materials that down-convert a portion of the blue light emitted by the blue LED to light having a peak wavelength that is between about 500 nanometers and about 545 nanometers, wherein the combination of the blue light emitted by the blue LED and the light emitted by the luminescent materials in the recipient luminophoric medium comprises light that is perceived as blue light having a color point that falls within the region on the 1931 CIE Chromaticity Diagram defined by ccx, ccy chromaticity coordinates of (0.1355, 0.0399), (0.175, 0.0985), (0.1743 0.1581), (0.1096, 0.0868), (0.1355, 0.0399).