Patent ID: 8016431
Filing Date: 2011-09-13
Classification: G03B,H04N

Abstract:
1. An image projection apparatus that illuminates an image forming element configured to form an original image by using light form a light source, and projects light from the image forming element onto a projection screen separate from the image projection apparatus, the image projection apparatus comprising: a housing having an inlet port including a dust removal filter; a fan arranged downstream of the image forming element and configured to draw air into the housing through the inlet port; a duct configured to lead the air drawn from the inlet port into a space that contains the image forming element; and a chamber provided between the inlet port and the duct, wherein a sectional area of the chamber is larger in a direction orthogonal to an inflow direction of air into the duct at a connection part between the chamber and the duct than a sectional area of the connection part.