Patent ID: 7513626
Filing Date: 2009-04-07
Classification: G03B

Abstract:
1. A light source device comprising: a light emitter; a reflector covering the light emitter; and a supporting member for holding the reflector, passages of cooling air being formed above and below the reflector, wherein the passages of cooling air include first and second openings that are opened in upper and lower portions, respectively, of the reflector, a wind direction switching member is disposed swingably on the supporting member in a plane almost orthogonal to an optical axis L of the light emitter near the second opening in the lower portion of the reflector, and the wind direction switching member has a switching function of making cooling air from the second opening flow upward to a side of the light emitter in a state where the supporting member is placed on a desk, and making the cooling air flow directly to an upper portion of the light emitter via the second opening in a state where the supporting member is hung from a ceiling.