Patent ID: 6810729
Filing Date: 2004-11-02
Classification: B60S

Abstract:
A rain sensor (10), in particular for a motor vehicle, having at least one transmitter (20) emitting radiation in the operating state, and at least one receiver (22) at least partially sensitive to the radiation from the transmitter (20), and a substantially flat light-conducting body (14) that is capable of being coupled nearly parallel to a surface of a wettable window pane (12) of the motor vehicle, and comprising structures (18a, 18b) for directing and catching the radiation from the transmitter (20), wherein the structures (18a) for directing the radiation are different in form from the structures (18b) for catching the radiation, wherein the structures (18b) for catching the radiation comprise radiation-concentrating properties, and wherein the structures (18a) for directing the radiation are formed as a spherical segment.