Projector with improved configuration of cooling apparatus

A projector comprising:

• a light source apparatus that outputs light containing first color light, second color light, and third color light;
• an image formation apparatus including a first light modulator that modulates the first color light, a second light modulator that modulates the second color light, a third light modulator that modulates the third color light, and a color combiner that combines the modulated first color light, second color light, and third color light with one another into image light and outputs the image light;
• a projection optical apparatus that includes an optical path changer, receives the image light in a first direction from the image formation apparatus, guides the incident image light along the first direction, changes a direction of an optical path of the image light via the optical path changer to a second direction that intersects with the first direction, and then projects the image light;
• and
• a cooling apparatus,
• wherein the cooling apparatus includes
• a first duct provided in accordance with the first light modulator,
• a first centrifugal fan that has an intake surface through which an outside air flows into the first centrifugal fan and an outlet through which a cooling gas flows from the first centrifugal fan into the first duct,
• a second duct provided in accordance with the second light modulator,
• a second centrifugal fan that has an intake surface through which an outside air flows into the second centrifugal fan and an outlet through which a cooling gas flows from the second centrifugal fan into the second duct,
• a third duct provided in accordance with the third light modulator, and
• a third centrifugal fan that has an intake surface through which an outside air flows into the third centrifugal fan and an outlet through which a cooling gas flows from the third centrifugal fan into the third duct,
• the first, second, and third centrifugal fans are disposed in a region defined by the image formation apparatus and the projection optical apparatus,
• the first and second centrifugal fans are each so oriented that an angle between an imaginary plane defined by the first and second directions and their respective intake surface is greater than or equal to 0° but smaller than or equal to 45°, wherein the angle formed between the imaginary plane and the intake surface of the first centrifugal fan is same as the angle formed between the imaginary plane and the intake surface of the second centrifugal fan,
• the third centrifugal fan is so oriented that an angle between the imaginary plane defined by the first and second directions and the intake surface of the third centrifugal fan is greater than 45° but smaller than or equal to 90°,
• the second centrifugal fan is disposed at a position shifted from the first centrifugal fan in a third direction that intersects with the first and second directions, and
• a portion of the second duct and a portion of the outlet of the second centrifugal fan both overlap with a portion of the first centrifugal fan when viewed in the third direction.