| 摘要 |
An LCD projector including liquid crystal light valves, a duct, and nozzles. Each liquid crystal light valve includes optical components. Cooling air flows through the duct to cool the optical components of each liquid crystal light valve. The nozzles are arranged in correspondence with the liquid crystal light valves and blow the cooling air from the duct toward the optical components of the corresponding liquid crystal light valves. At least one nozzle includes an inlet, which is in communication with the duct, and an outlet, from which the cooling air from the inlet is blown out. The outlet has a width in a direction orthogonal to an optical axis of light that is set so that a blowing range of the cooling air is selected for each optical component in the corresponding liquid crystal light valve.
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