| abstract |
In various embodiments, a lighting device is provided. The lighting device includes a phosphor volume for at least partial wavelength conversion of primary light into secondary light, a primary light semiconductor light source for irradiating the phosphor volume with primary light, a measurement light generating arrangement for generating measurement light having a spectral composition outside the primary light and the secondary light, a measurement light detector sensitive to the measurement light, and a measurement light filter, which is fixedly connected to the phosphor volume and is optically arranged between the measurement light generating arrangement and the measurement light detector. |