| 摘要 |
PROBLEM TO BE SOLVED: To provide a projector apparatus for ensuring stable operation by efficiently cooling an optical device and having a new technology for preventing moisture resulting from evaporation of dew adhering to a cooling part from adversely affecting the optical device when stopping the operation of the refrigeration cycle in the case that the optical device of a projector is stored in an optical chamber enclosed by adiabatic walls, the refrigeration cycle including a refrigerant compressor is combined, and the optical device is cooled by circulating air cooled by the cooling part to the optical chamber. SOLUTION: In this projector apparatus 1, the optical chamber HM and a cooling chamber RM are enclosed by the adiabatic walls, the cooling chamber and the optical chamber are connected to each other through a cold air inlet port and a cold air outlet port, and the cold air inlet port and the cold air outlet port are provided with opening and closing mechanisms. In a cooling operation mode, the optical device is cooled with cold air by opening the opening and closing mechanisms, and, upon stoppage of the cooling operation, the opening and closing mechanisms are closed to prevent the inflow of the moisture in the cooling chamber to the optical chamber. COPYRIGHT: (C)2010,JPO&INPIT
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