| 摘要 |
A light source unit (63) includes a light emitting plate (71) which has a plurality of segment areas (1,2) and in which a luminescent material layer (131) which emits light having a predetermined wavelength band by receiving excitation light and a transmissive portion (132,141) which transmits light are formed on at least the plurality of segment areas, a primary light source (72) for emitting excitation light on to the luminescent material, a secondary light source (82) for emitting light having a wavelength band which differs from those of luminescent light emitted from the luminescent material layer (131) and excitation light emitted from the primary light source (72), a light guiding optical system (62) for guiding light emitted from the light emitting plate (71) and light emitted from the secondary light source (82) to the same optical path, and a light source control means (41) for controlling the emission of light from the primary light source (72) and the secondary light source (82). |
