Patent ID: 6976760
Filing Date: 2005-12-20
Classification: H04N

Abstract:
1. A projector, comprising: a light source device, luminous flux emitted from the light source device being magnified and projected so as to form a projected image after being modulated; an outer case that accommodates the light source device; and a cooling passage that cools the outer case and the light source device formed in a vicinity of the light source device in the outer case, the cooling passage being formed by cooling air being blown out of a cooling duct arranged inside the outer case, a cooling air inlet hole of the cooling duct being capable of taking cooling air from the exterior of the outer case, and a discharge hole of the cooling duct having an opening formed to directly blow the cooling air on an internal side face of the outer case, the cooling air inlet hole of the cooling duct being divided into two directions by a first passage and a second passage, the first passage cooling an inside of a light source lamp of the light source device, while the second passage being capable of cooling an outer peripheral portion of the light source lamp and the internal side face of the outer case.