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Sensor device for determining the degree of wetting and/or soiling on window panes

  • US 6,311,005 B1
  • Filed: 04/18/2000
  • Issued: 10/30/2001
  • Est. Priority Date: 04/04/1997
  • Status: Expired due to Fees
First Claim
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1. A pane for a motor vehicle, comprising:

  • a plurality of layers; and

    a reflector arranged between two of the plurality of layers for reflecting a light beam, the reflector being arranged to direct the light beam at an outer side of the pane and at the reflector under a condition of at least one of total reflection and reflections;

    wherein, within a portion of the pane that is coextensive with a length of the reflector, the beam is reflectable within the pane in a path bounded by the outer side of the pane and a side of the reflector facing the outer side of the pane.

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