OPTOELECTRONIC SENSOR DEVICE

摘要

The invention relates to an optoelectronic sensor device for detecting the wetting rate of precipitation on a transparent pane (4). Said device comprises a beam conductor body (3), which is coupled to the pane (4) and has an associated beam transmitter (4) and beam receiver (5) that are located on a primary printed circuit board (3), in addition to an associated heating device that is located in a region lying outside the beam courses. Known heating devices require the use of relatively complex special components and have drawbacks in terms of installation space, in particular for the arrangement of additional ambient light sensors. The inventive optoelectronic sensor device has the advantage that the heating device is significantly more cost-effective to produce, being located on an additional circuit substrate (6) that is parallel to the pane surface and electrically connected to the primary printed circuit board (3) and that in addition, the installation space in the immediate vicinity of the pane can be used for additional light sensors.