| 摘要 |
The lighting device (1, W) comprises at least one primary light source (2), a phosphor volume (4) spaced apart therefrom and serving for at least partly converting the primary light (P) into secondary light (S), at least one light sensor (5, 7) for detecting light (P, S) generated by means of the at least one primary light source (2), and an evaluation device (9) for determining a case of damage to the phosphor volume (4), wherein the lighting device (1, W) comprises at least one additional light source (Z1, Z2, Z3) for irradiating the phosphor volume (4) and is designed to operate the at least one additional light source (Z1, Z2, Z3), the at least one light sensor (5, 7) and the evaluation device (9) with primary light source (2) switched off. A method serves for determining a case of damage to a phosphor volume (4) of a lighting device (1, W), wherein the method comprises at least the following steps: irradiating a phosphor volume (4) only by means of the additional light source (Z1, Z2, Z3) and determining a case of damage to the phosphor volume (4) on the basis of sensor data of at least one light sensor (5, 7). |
