Sensor device and wiper controller
First Claim
1. A sensor device for detecting a wetting on a windshield comprising:
- a light emitter; and
a reflective device for reflectively redirecting a light emitted from the light emitter;
a light receptor for receiving the light from the light emitter, wherein the reflective device redirects at least one light path from the light emitter via the windshield to the light receptor, the light receptor collects the light in at least two light paths from the light emitter via the windshield, and the amount of the light detected by the light receptor determines wetting on the windshield.
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Accused Products
Abstract
A sensor device for detecting wetting on a windshield includes a light emission element for emitting a light, a first light reception element for receiving the light in a first light path that includes reflective redirection by the windshield, and a second light reception element for receiving the light in a second light path that does not include reflective redirection by the windshield. The sensor device uses a ratio of the amount of the received light by the first light reception element and the amount of the received light by the second light reception element to determine wetting on the windshield.
17 Citations
9 Claims
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1. A sensor device for detecting a wetting on a windshield comprising:
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a light emitter; and
a reflective device for reflectively redirecting a light emitted from the light emitter;
a light receptor for receiving the light from the light emitter, wherein the reflective device redirects at least one light path from the light emitter via the windshield to the light receptor, the light receptor collects the light in at least two light paths from the light emitter via the windshield, and the amount of the light detected by the light receptor determines wetting on the windshield. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9)
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Specification