| 摘要 |
A water drop detection sensor having a signal transmission function, for detecting plural water drops adhering to or present upon a windshield, as well as being able to transmit a signal between the inside of a vehicle and the outside, comprising: a glass windshield 2; a light emitting means 5 for introducing detection light into the glass windshield; a light receiving means 6 for detecting reflected detection light, the reflected detection light being reflected by total internal reflection within the glass windshield; and a light signal transmission means 9 for conducting optical communication. The light emitting means and the light receiving means are fixed on an interior side surface of the glass windshield 2 with adhesive material 4, and the signal transmission means 9 is also fixed on the interior side surface of the glass windshield 2 with adhesive material 4, but except reflection points of the detection light reflected therein. <IMAGE> |
