Patent ID: 6573995
Filing Date: 2003-06-03
Classification: B60S

Abstract:
A sensor device for detecting a degree of wetting and/or soiling of a motor-vehicle pane, said sensor comprising:a wall being able to be coupled to a surface of said motor-vehicle pane; an emitter radiation guide element and a receiver radiation guide element extending through said wall; a radiation emitter and a radiation receiver; and collecting and directing coupling elements respectively associated with said radiation emitter and said radiation receiver, said collecting and directing coupling elements being respectively coupled to said emitter radiation guide element and said receiver radiation guide element, wherein optical axes of the collecting and directing coupling elements are aligned at acute angles to the motor-vehicle pane, and wherein end faces of the emitter and receiver radiation guide elements facing away from the radiation emitter and receiver are flush with a side of the wall facing the motor-vehicle pane, and wherein the emitter and receiver radiation guide elements are separate from each other and are structured as one piece with the wall, wherein said wall extends between the emitter and receiver radiation guide elements and is formed of a non-transparent material, and wherein each of the emitter and receiver radiation guide elements is held in its respective opening in the wall by fusion of materials.