Patent ID: 6545285
Filing Date: 2003-04-08
Classification: B60S

Abstract:
A sensor device for detecting wetting of an automotive windshield, comprising:at least two light-emitting transmitters; at least two receivers; and a light guidance body injecting radiation from the at least two light-emitting transmitters into the windshield at an angle of inclination and outputting the radiation from the windshield to the at least two receivers, the light guidance body including at least four structures, each of the at least four structures having two different surfaces to collect and parallelize the radiation from a corresponding one of the at least two light-emitting transmitters in two different directions, wherein the at least two transmitters and the at least two receivers are situated so that images thereof define corner points of a non-right parallelogram, the images being formed by projection onto a plane parallel to the windshield.