Projector

A projector comprising:

• an optical modulation device configured to modulate an incident luminous flux;
• a projection optical device configured to project the luminous flux modulated by the optical modulation device;
• and
• a cooling device configured to cool the optical modulation device, wherein
• the optical modulation device is disposed in a state that a luminous flux incidence side end face of the optical modulation device is approximately parallel to an optical axis of the projection optical device,
• the cooling device includes
• a cooling fan configured to suction and discharge air, and
• a duct having a discharge portion that causes the air discharged from the cooling fan to circulate in a direction approximately parallel to the optical axis, and discharges it to a lateral side of the optical modulation device, and
• the duct is disposed in a state that, when the projection optical device and discharge portion are cut by a plane perpendicular to the optical axis, the height position of a first center between the upper end and lower end of the cross-section of the discharge portion, and that of the optical axis, differ from one another.