| 摘要 |
In a car defroster which detects the clouding on the window glass by a sensor and blows conditioned air out from the defroster port to the window glass to remove the blur, an infrared sensor 1 is used as the sensor for measuring the surface temperature of the window glass, and the defrosting operation is carried out according to the measuring result. The infrared sensor is provided, for example, at a center of the ceiling of the passenger compartment, and consists of at least two sensor elements so that the temperatures of window glasses in a plurality of directions are detectable.
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