| 摘要 |
A light source device (100) is configured such that: the light source device is provided with an excitation light source (5) that generates excitation light, a fluorescent material (2) that generates fluorescent light by being irradiated with excitation light (11) generated by means of the excitation light source (5), and an angle adjustment mechanism (7) that adjusts an incoming angle (θ) of the excitation light to be applied to the fluorescent material (2) from the excitation light source (5); and lighting light (12) is outputted by mixing the excitation light and the fluorescent light. Consequently, a chromaticity change of the lighting light (12) due to deterioration of the fluorescent material (2) with time can be suppressed. |
