Vision system for a vehicle

  • US 7,425,076 B2
  • Filed: 12/18/2007
  • Issued: 09/16/2008
  • Est. Priority Date: 02/26/1993
  • Status: Expired due to Fees
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First Claim
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1. A vision system for a vehicle, said vision system comprising:

  • an imaging sensor;

    said imaging sensor comprising a two-dimensional array of light sensing photosensor elements formed on a semiconductor substrate;

    a logic and control circuit;

    said logic and control circuit comprising an image processor for processing image data derived from said imaging sensor, said logic and control circuit generating at least one control output for controlling at least one vehicular light of the vehicle;

    said imaging sensor disposed at an interior portion of the vehicle and having a field of view exterior and forward of the vehicle through the windshield of the vehicle;

    at least one headlight disposed at a front portion of the vehicle and operable to illuminate with visible light a scene forward of and in the path of travel of the vehicle;

    a lens imaging light external to the vehicle onto said imaging sensor;

    said light including at least in part light output by said at least one headlight of the vehicle that is scattered by at least one of fog, snow and rain present in said field of view exterior and forward of the vehicle;

    wherein said vision system recognizes scattering of light output by said at least one headlight of the vehicle in said field of view exterior and forward of the vehicle; and

    wherein said vision system, responsive to said recognition of said scattering of light in said field of view exterior and forward of the vehicle, selects an appropriate vehicular lighting configuration so as to reduce veiling glare.

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