| 主权项 |
1. A lighting device for generating light by means of a wavelength conversion, the lighting device comprising:
at least one excitation radiation source designed to emit excitation radiation; a wavelength conversion arrangement comprising at least one wavelength conversion element, which wavelength conversion arrangement is arranged in such a way that excitation radiation emitted by the excitation radiation source can be radiated at least indirectly onto the at least one wavelength conversion element, wherein the at least one wavelength conversion element is designed to convert excitation radiation at least partly into conversion light, and wherein an unavoidable non-converted part of the excitation radiation is reflected by the wavelength conversion element; a collimation optical unit for collimating the excitation radiation to form at least one collimated excitation beam; a converging optical unit for directing the at least one collimated excitation beam onto the at least one wavelength conversion element; a mirror optical unit, which is arranged between collimation optical unit and converging optical unit and has at least one region for reflecting that part of the at least one excitation beam which is not converted, but rather is reflected by the at least one wavelength conversion element. |
