Patent ID: 7963659

Claim:
A projector, comprising: a chassis having a first intake aperture in one side and a first exhaust aperture in an opposite side of the one side; a lamp unit having a lamp, a front cover, and a rear cover, the lamp being provided with a lamp bulb, the front cover being installed at a front side of the lamp, a second intake aperture being formed in the front cover, the rear cover being installed at a rear side of the lamp, a second exhaust aperture being formed at a side wall of the rear cover, the lamp being installed inside of the front cover and the rear cover; an intake fan which is connected to the second intake aperture, sucks in air, blows the air to the second intake aperture, and exhausts a first air flow from the second exhaust aperture to the chassis with the air which passes around periphery of the lamp; a partition plate which is installed so as to face forward of the second exhaust aperture along the direction from the first intake aperture to the first exhaust aperture; a main fan which generates a second air flow flowing from the first intake aperture to the first exhaust aperture and merging with the first air flow exhausted from the second exhaust aperture when passing between the second exhaust aperture and the partition plate; a direction control plate which is provided with the second exhaust aperture and which comprises three plates surrounding the second exhaust aperture: an upper plate, a side plate, and a lower plate, the side plate being inclined in a direction to close the second exhaust aperture; and a bottom portion of a box shape provided between the partition plate and the second exhaust aperture and below the direction control plate.