Projector

Abstract

A direction control plate is fitted near an exhaust aperture of a lamp unit, and a partition plate is fitted so as to surround the front and the bottom of the exhaust aperture. The direction control plate includes an upper plate, a side plate, and a lower plate, and is fitted so as to surround three sides of the periphery of the exhaust aperture (excluding the upstream side in the exhaust direction of a main fan) in the shape of a letter “U”. Furthermore, the side plate is provided so as somewhat to close the exhaust aperture, and so as to be inclined by an angle θ towards the wall of a case. If a lamp within the lamp unit should break, the direction of scattering of the broken pieces is controlled by this direction control plate, and it is possible to prevent these broken pieces from being scattered to the exterior of the device, since the broken pieces can be made to collide with the partition plate.

Description

BRIEF DESCRIPTION OF THE DRAWINGS

FIG. 1 is a perspective view showing the schematic internal construction of a projector;

FIG. 2 is a cutaway plan view showing the schematic structure of a lamp unit;

FIG. 3 is a perspective view showing the structure of the lamp unit and its surroundings; and

FIG. 4 is a perspective view showing a structure for the lamp unit and its surroundings, different from that shown in FIG. 3.

Claims

1. A projector, comprising: a lamp unit, in an external wall of which an intake aperture and an exhaust aperture are formed, and in the interior of which a lamp is installed;an intake fan which sucks in air from said intake aperture and cools said lamp therewith; anda partition plate which is installed so as to face forward of said exhaust aperture of said lamp unit.

2. A projector as described in claim 1, further comprising: a main fan which discharges exhaust from said lamp unit to the exterior of the device main body; anda direction control plate which is erected near said exhaust aperture, and at the downstream side of the exhaust of said main fan.

3. A projector as described in claim 2, wherein said direction control plate is inclined in a direction to close said exhaust aperture.

4. A projector as described in claim 1, wherein said partition plate comprises a bottom portion of a box shape, below said exhaust aperture.