Patent ID: 9411216
Filing Date: 2016-08-09
CPC Classification: G02B,G03B,H04N

Claim Text:
1. A projector, comprising: a light source; an image forming unit to illuminate an image generating device with light emitted from the light source to generate an optical image; a projection optical unit including optical devices to project the optical image generated by the image forming unit; a power supply to supply electric power to the light source; a case that contains the light source, the image forming unit, the projection optical unit, and the power supply; a first intake duct provided in the case; and a second intake duct provided in the case, the second intake duct being closer to the power supply than the first intake duct, wherein the projector takes outside air in the case through the first intake duct provided on the case, cools the power supply by circulating the taken outside air to the power supply circumventing the projection optical unit, and exhausts the air after cooling through an exhaust vent provided on the case, and an amount of outside air drawn into the case through the second intake duct is larger than an amount of outside air drawn into the case through the first intake duct.