| 摘要 |
A video projector includes a cooling system arranged in a frame accommodating an optical component. The cooling system includes an ambient air drawing unit and a cooling fan. The ambient air drawing unit includes an inlet, through which the ambient air is drawn into the frame, an air filter arranged facing the inlet, and a case that accommodates the air filter and forms an air passage extending from the inlet to an exit side of the air filter. The cooling fan sends the ambient air, which is drawn in by the ambient air drawing unit, to the optical component. The ambient air drawing unit is formed to be movable to a position outside the frame so that the air filter is replaceable in a state in which the ambient air drawing unit is moved to the position outside the frame.
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