A projector includes: an optical system includes a light source, a light modulation element for modulating light emitted from the light source to form an optical image, and a projection lens for projecting the optical image, the optical system is structured such that an illumination optical axis of the light source and a projection optical axis of the projection lens cross each other substantially at right angles in the plan view; and a cooling fan configured to the light modulation element, and has a rotation axis crossing each other substantially at right angles with a discharge direction where a cooling air is discharged, the cooling fan is disposed in the vicinity of the projection lens and on the side where the light source is provided such that the rotation axis extends in the thickness direction of the projector.
1. A projector comprising:
an optical system including a light source, a plurality of light modulation elements for modulating light emitted from the light source to form an optical image, a plurality of the light modulation elements disposed adjacent to one another, and a projection lens for projecting the optical image, the optical system configured such that an illumination optical axis of the light source is substantially perpendicular to a projection optical axis of the projection lens in the plan view;
a cooling fan configured to cool a plurality of the light modulation elements in the adjacent order, the cooling fan having a rotation axis that is substantially perpendicular to a discharge direction that a cooling air is discharged, and the cooling fan disposed in the vicinity of the projection lens and on the side where the light source is provided such that the rotation axis extends in a thickness direction of the projector; and
a housing configured to form an exterior package of the projector, the housing containing an air intake port that introduces outside air into the housing and an air exhaust port that exhaust heated air within the housing to the outside of the housing,
wherein:
the air intake port and the air exhaust port are provided on different surfaces of the housing, and
the air intake port is provided on a surface of the housing that the projection lens is positioned and on a side that the cooling fan is positioned for the projection lens.
2. The projector according to claim 1 , wherein
the discharge direction of the cooling fan is parallel with a plane formed by the illumination optical axis and the projection optical axis.
3. The projector according to claim 1 , further comprising:
a power source unit configured to supply power to the respective components included in the projector,
wherein the cooling fan is configured to cool the power source unit by introducing the outside air and is configured to cool the light modulation elements by discharging the outside air.
4. The projector according to claim 1 , further comprising:
a power source unit configured to supply power to the respective components included in the projector,
wherein the cooling fan is configured to cool the power source unit by using air that cooled the light modulation elements.