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Precipitation sensor

  • US 20020121972A1
  • Filed: 01/29/2002
  • Published: 09/05/2002
  • Est. Priority Date: 10/30/1997
  • Status: Active Grant
First Claim
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1. A vehicular rain sensor which senses at least one of rain and fog on a vehicle window, said vehicular sensor comprising:

  • an imaging array sensor directed at the vehicle window from inside the vehicle; and

    a control which responds to an output of said imaging array sensor in order to indicate precipitation on a surface of the window.

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