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CAPACITIVE SENSING APPARATUS

  • US 20110037728A1
  • Filed: 05/08/2009
  • Published: 02/17/2011
  • Est. Priority Date: 05/09/2008
  • Status: Active Grant
First Claim
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1. A capacitive sensing apparatus comprising:

  • a capacitive sensor that provides a means for generating a capacitive sensing field from a capacitive sensing area;

    a light source; and

    a light guide comprising a light scattering means,wherein the light source is spaced apart from the capacitive sensing area and the light guide is arranged to guide light from the light source to the light scattering means, the light scattering means being positioned substantially at the capacitive sensing area.

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