Sensing device for detecting wetness on a glass pane

摘要

The sensor arrangement includes at least one transmitter (14), at least one receiver (15), and at least one light conductor body (10) for light emitted by the transmitter, which is arranged between the window (13) and the transmitter and/or receiver. The images of the transmitter and the receiver through projection on the window form corner points of a trapezoid. The light is preferably reflected at least once between transmitter and receiver, at a surface area of the window.