Patent ID: 6488378
Filing Date: 2002-12-03
Classification: G03B

Abstract:
An imaging apparatus comprising:a projection section for projecting an image onto a screen; a cooling section for cooling the projection section by means of air; an exterior cabinet for housing the projection section and the cooling section; and an exhaust section for exhausting the air used for the cooling of the projection section by the cooling section, from the exterior cabinet; wherein: the exhaust section has a function for attenuating a noise caused by the cooling section; the projection section comprises a light source lamp unit, an emission optical unit for collecting light from the light source lamp unit, an imaging element unit for generating optical picture information using light collected by the emission optical unit, and a projection lens unit for enlarging and projecting the optical picture information; the projection lens unit comprises a projection lens and a projection lens moving device for moving the projection lens; and the exterior cabinet has a front face which is formed at the side of the screen, the exterior cabinet further comprising a dust-proofing section which is provided between the front face and the projection lens moving device, for preventing outside dust from entering the apparatus; wherein the dust-proofing section comprises at least two pieces of cloth, and a sound absorbing material inserted between the two pieces of cloth.