Is a
Patent attributes
Current Assignee
Patent Jurisdiction
Patent Number
Patent Inventor Names
Taketoshi Yoshigoe0
Junichi Ishikawa0
Taiji Morishita0
Date of Patent
June 10, 2008
0Patent Application Number
112391210
Date Filed
September 30, 2005
0Patent Primary Examiner
Patent 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.
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