Patent ID: 9599294
Date: 2017-03-21
CPC Classifications: F21K,F21S,F21Y,H05B

Claim:
1. An LED lighting device, comprising: a plurality of light-emitting diodes belonging to different wavelength groups, wherein the plurality of light-emitting diodes comprises one or a plurality of sets comprising in each case one mint-colored light-emitting diode, one amber-colored light-emitting diode and a plurality of yellow light-emitting diodes, wherein the yellow light-emitting diodes belong to different wavelength groups, wherein the LED lighting device is designed, at a relatively low temperature, to operate only the yellow light-emitting diode from the wavelength group with the highest dominant wavelength and, as the temperature rises, to switch in progressively the yellow light-emitting diodes from the wavelength groups with the lower dominant wavelengths.