US 2009/0268170 A1 · IMAGE PROJECTION APPARATUS

Abstract

An image projection apparatus includes a lamp, an air duct configured to lead air from a cooling fan to the inside of a reflector of the lamp, an exhaust duct configured to lead first air, second air, and third air to an exhaust port formed in a housing of the image projection apparatus, the first air passing the inside of the reflector, the second air being drawn from a first inlet port in the housing and passing an area that faces an outer surface of the reflector, and the third air being drawn from a second inlet port formed in the housing, wherein a first area that blends the first air with the third air, and a second area that blends blended area from the first area with the second air and leads resultant air to the exhaust port are provided inside of the exhaust duct.

Claims9

Dependent claims

An image projection apparatus comprising:

a lamp that includes a reflector, and a light emitting tube arranged inside of the reflector;
an air duct configured to lead air from a cooling fan to the inside of the reflector;
and
an exhaust duct configured to lead first air, second air, and third air to an exhaust port formed in a housing of the image projection apparatus, the first air passing the inside of the reflector, the second air being drawn from a first inlet port in the housing and passing an area that faces an outer surface of the reflector, and the third air being drawn from a second inlet port formed in the housing,
wherein a first area that blends the first air with the third air, and a second area that blends blended air from the first area with the second air and leads resultant air to the exhaust port are provided inside of the exhaust duct.

2 more elements

Dependencies are inferred from the claim text.

Image projection apparatus

Life of this patent

Image projection apparatus

Life of this patent

Abstract

Claims9