Optoelectronic sensor equipment for detecting moisture on motor vehicle windscreen has transmitter that sends out optical radiation that arrives at windscreen at predetermined angle

摘要

Optical radiation from a transmitter (5) is reflected by a motor vehicle windscreen (4) towards a receiver (6). The windscreen has a prism structure comprised of a number of single prisms. The optical radiation thereby arrives at the windscreen at an angle (7) that is less than 45 degrees.