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| Application No. | Application Title | Issue Date |
| 20100155584 | SENSOR FOR DETECTING DIRT AND/OR RAIN AND METHOD FOR OPERATING A SENSOR A sensor detects dirt and/or rain having a transmitter unit (12, 112) and at least one receiver unit (16, 116) as well as a test surface (22, 122), an accumulation (30, 32) on the test surface (22, 122) being detectable by a light beam... | 06/24/2010 |
| 20090127444 | Raindrop detection apparatus A raindrop detection apparatus includes a light emitting unit for emitting light to an inner side of a windshield, a light receiving unit for receiving the light reflected by an outer surface of the windshield, a first lens unit which is arranged between the windshield ... | 05/21/2009 |
| 20090032689 | Optical sensor device An optical sensor device has a sensor unit, which includes a light transmitter, a light receiver and a lens plate, with which a beam of light emitted by the light transmitter is coupled into the window pane, coupled out of the window pane and directed onto the light rec... | 02/05/2009 |
