SENSOR FOR DETECTING CONTAMINANTS AND/OR RAIN AND METHOD FOR OPERATING A SENSOR
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United States of America Patent
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Issued Date -
May 8, 2008
app pub date -
Sep 12, 2007
filing date -
Sep 13, 2006
priority date (Note) -
Abandoned
status (Latency Note)
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Abstract
The invention relates to a sensor to detect contaminants and/or water with at least one transmission unit (12, 112) and at least one receiver unit (16, 116) as well as a test surface (22, 122) in which the deposit (30, 32) can be detected on the test surface (22, 122) by a light beam (24, 26; 124, 126) emitted by a transmission unit (12, 112) and received by the receiver unit (16, 116). The transmission unit (12, 112) emits at least two different wavelengths allocated to a common receiver (18, 118) of the receiver unit (16, 116).
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