Patent ID: 9746141
Date: 2017-08-29
CPC Classifications: F21K,F21V,F21Y,H01L,H05B

Claim:
1. An arrangement for generating white light, having at least two light-emitting diodes, wherein the first diode generates blue light, wherein a conversion element is associated with the first diode, wherein the conversion element converts a part of the blue light from the first diode into green light, wherein the conversion element converts a part of the blue light from the first diode into red light, wherein the first diode and the conversion element are adapted in such a way that the light emitted by the conversion element has a colour point in a triangular region of a chromaticity diagram, wherein the triangular region is delimited by a sixth line, which runs along the Planck curve and which can be described by the following formula: Cy=−(2.453*Cx 2 )+2.446*Cx)−0.195, where Cy denotes the Y value of the chromaticity diagram and Cx denotes the X value of the chromaticity diagram, and wherein the triangular region is delimited by a seventh line, which runs alongside the conversion straight line and which can be described by the following formula: Cy=1.478*Cx−0.110, where Cy denotes the Y value of the chromaticity diagram and Cx denotes the X value of the chromaticity diagram, and wherein the second diode emits red light.