| 摘要 |
A sensor is described which simultaneously allows visual range and rain-covered area detection. To this end, light is coupled into the windshield in such a way, that a portion is reflected in the windshield and a portion leaves the windshield and is scattered outside the windshield. The rain-covered area is determined from the reflected portion, and the usual range is determined from the scattered portion which returns to the windshield, wherein both portions are detected by means of a decoupling mechanism and a light receiver.
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