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Illumination of input device

  • US 8,378,857 B2
  • Filed: 07/19/2010
  • Issued: 02/19/2013
  • Est. Priority Date: 07/19/2010
  • Status: Active Grant
First Claim
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1. An input device, comprising:

  • an input mechanism operative to move along an axis, the input mechanism having a front face and a back face;

    a housing mechanically connected to the input mechanism;

    a light source located beneath the input mechanism;

    a light guide optically coupled to the light source and the input mechanism and entirely located beneath the input mechanism;

    whereinthe light guide redirects at least some light emitted from the light source through the back face of the input mechanism and through the front face of the input mechanism; and

    wherein the light guide concentrates the redirected light on a portion of the input mechanism.

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