Light-emitting diode module and method for operating a light-emitting diode module

摘要

A light-emitting diode module includes: at least one first light-emitting diode chip which is based on the material system AlInGaN and which emits a first radiation in the blue spectral range, at least one second light-emitting diode chip which is based on the material system InGaAlP and which emits a second radiation in the red spectral range, and a conversion element, which is disposed downstream of at least the first light-emitting diode chip and is designed for converting part of the first radiation into a third radiation in the green to green-yellow spectral range, wherein the conversion element comprises a first phosphor and a second phosphor, the first phosphor emits at a shorter wavelength than the second phosphor, the first phosphor has an absorption that decreases toward relatively long wavelengths in the long-wave blue spectral range, and the second phosphor has an absorption maximum in the middle blue spectral range.

主权项

1. A light-emitting diode module comprising:
at least one first light-emitting diode chip which is based on the material system AlInGaN and which is designed to emit a first radiation in the blue spectral range, at least one second light-emitting diode chip which is based on the material system InGaAlP and which is designed to emit a second radiation in the red spectral range, and a conversion element, which is disposed downstream of at least the first light-emitting diode chip and is designed for converting part of the first radiation into a third radiation in the green to green-yellow spectral range, wherein
the conversion element comprises a first phosphor and a second phosphor, the first phosphor is designed to emit at a shorter wavelength than the second phosphor,the first phosphor has an absorption that decreases toward relatively long wavelengths in the long-wave blue spectral range, and the second phosphor has an absorption maximum in the middle blue spectral range, wherein a scattering body is disposed downstream of the second light-emitting diode chip, wherein the scattering body has a greater scattering capability at a temperature of 300 K than at a temperature of 400 K.