Patent ID: 7029123
Filing Date: 2006-04-18
Classification: F21V,H04N

Abstract:
1. A projector device housed in a casing including an optical system for receiving light from a light source and producing an image-forming beam to project the image-forming beam forward from the optical system, the projector device comprising: an intake for drawing in air from outside the casing, an air discharge opening for forcing out air toward the optical system, an air channel for connecting the intake and the air discharge opening, and a sirocco fan of one-side suction type having an intake opening in only one side and installed in the air channel, wherein the sirocco fan of one-side suction type is installed with said one side positioned a greatest possible distance away from, and opposed to, a wall of the air channel to provide a space in communication with the intake between said one side and the air channel wall wherein the opposite side of the sirocco fan is arranged adjacent an opposite wall of said air channel.