| 摘要 |
PROBLEM TO BE SOLVED: To provide a projector device for projecting an image, where exhaust air from a cooling fan is discharged after its temperature is made low, thereby stabilizing temperature in the device, preventing hot air from an exhaust port from flowing onto the optical path of projected light, and preventing the occurrence of fluctuation on a projected image to obtain a stable projection screen. SOLUTION: The projector device for projecting the image is equipped with: the cooling fan 6 cooling a lamp 8 by giving cooling air; Peltier elements P1 to P4 cooling the exhaust air passing through the lamp 8; and a temperature sensor 20 measuring air temperature in the device 1. Based on the detection voltage signal of the temperature sensor 20, both the cooling fan 6 and the Peltier elements P1 to P4 are controlled, and the air hole 42 of the exhaust port 41 of a front cover part 4 is disposed in a direction where it is separated from a projection optical axis, whereby the projection screen is stabilized. COPYRIGHT: (C)2006,JPO&NCIPI
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