Projector device

A projector device housed in a casing including an optical system for receiving light from a light source and producing an image-forming beam, and a cooling unit disposed along the optical system, to project the image-forming beam forward from the optical system, the projector device comprising:

• an intake formed in a housing of the cooling unit for drawing in air from outside the casing;
• an air discharge opening formed in the housing of the cooling unit for forcing out air toward the optical system;
• a partition wall installed within the housing of the cooling unit for forming an air channel for connecting the intake and the air discharge opening;
• an air inlet hole formed in the casing and in communication with the intake;
• and
• a sirocco fan of one-side suction type having an intake opening in one side and installed within the housing of the cooling unit,
• 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, and a discharge opening in communication with the air discharge opening wherein the opposite side of the sirocco fan is arranged adjacent an opposite wall of said air channel.