Patent ID: 7147349
Filing Date: 2006-12-12
Classification: F21V,G03B,H04N

Abstract:
1. A light source device attached to an optical equipment provided with a light-source cooling fan thereinside, the light source device comprising: a light source; a reflector that has a concave curved reflection surface and houses the light source thereinside, the reflector irradiating a radial light beam from the light source after aligning in a predetermined direction; a light-transmissive component that covers a light-irradiation side of the reflector; a light source housing that houses the light source, the reflector and the light-transmissive component, wherein an opening that introduces a cooling air to the light source is formed on the reflector, and wherein the light source housing has a cooling-air-introducing opening formed at a position corresponding to the position of the opening of the reflector and a duct provided on the light source housing that slides to protrude from the light source housing and transfers the cooling air to the cooling-air introducing opening on the light source housing when the duct protrudes from the light source housing.