Patent ID: 9726346
Date: 2017-08-08
CPC Classifications: F21V,G03B,H04N

Claim:
1. A light module for generating wavelength-converted light in the red spectral range having a predefinable first dominant wavelength of a wavelength spectrum by means of a wavelength conversion element, the light module comprising: a wavelength conversion element designed to absorb excitation radiation having at least one first wavelength, to convert it into light having at least one second wavelength greater than the first wavelength, and to emit said light; an excitation radiation source designed to emit excitation radiation having at least the first wavelength and arranged in such a way that excitation radiation emitted by the excitation radiation source can be radiated at least indirectly onto the wavelength conversion element; wherein the wavelength conversion element has an emission spectrum having a red spectral component and having a second dominant wavelength, which is less than the first dominant wavelength of the wavelength spectrum of the light to be generated at least by a predefinable value; wherein the wavelength conversion element is embodied in such a way that the second dominant wavelength of the emission spectrum of the wavelength conversion element lies in a yellow or yellow-green spectral range; wherein the light module furthermore comprises a long-pass filter arranged in such a way that light emitted by the wavelength conversion element can be radiated at least partly and at least indirectly onto the long-pass filter, wherein the long-pass filter is designed to filter the light emitted by the wavelength conversion element and radiated onto the long-pass filter in such a way that the filtered light has the wavelength spectrum of the light to be generated having the predefinable dominant wavelength.