| 摘要 |
Provided is a light source device that can more uniformly cool a light-emitting tube. The light source device is provided with a reflector (15), a light-emitting tube (14), a blower (12), a first duct (21), and a second duct (41). The reflector (15) has a through hole. The light-emitting tube (14) contains a light-emitting section (17) and a sealing section (18) extending from the light-emitting section (17). Also, the sealing section (18) is passed through the through hole. The blower (12) generates cooling wind. The first duct (21) leads the cooling wind to the light-emitting section (17). The second duct (41) leads the cooling wind to the sealing section (18). |
