| 摘要 |
<p>PURPOSE: A light source device and a projector are provided to reduce the influence of an optical loss caused by a diachronic mirror. CONSTITUTION: A light source device includes a first light source (110), a second light source (120), a third light source (130), a fluorescent body (160), and a diachronic mirror (150). The first light source emits excitation lights. The second light source emits lights of a first wavelength band. The third light source outputs lights of a second wavelength band different from the first wavelength band. The fluorescent body receives the excitation lights from the first light source and emits lights of a third wavelength band different from the first and second wavelength bands. The diachronic mirror transmits the lights of the first wavelength band and reflects the light of the third wavelength band. The excitation light emitted by the first light source are transmitted through the diachronic mirror and emitted to the fluorescent body. The lights of the first wavelength band emitted by the second light source are transmitted through the diachronic mirror and emitted to a predetermined emission direction. The lights emitted by the fluorescent body are reflected by the diachronic mirror and emitted to a predetermined emission direction. Some of the lights of the second wavelength band emitted by the third light source are transmitted through the outer side of the diachronic mirror without being incident to the diachronic mirror, thereby being emitted to a predetermined emission direction.</p> |
