Sensor device for wetness detection of glass

(57) Abstract: on the glass (13), have been proposed particularly rain and / or dirt sensor device for detecting wetness due, the sensor device comprises at least one transmitter (14) , at least one receiver (15) comprises a transmitter (14) and a receiver (15) are corner points of a virtual trapezoid for transmitter light emitted from the transmitter (17) It is located. This reduced the outer dimensions of the sensor are improved ratio of the light-receiving surface (19) and the reference plane of the sensor (18), a light receiving surface for successive obtained, for receiving elements in this case the automatic light control device space is also provided.