Backlighting apparatus for a keypad assembly

  • US 8,431,849 B2
  • Filed: 09/24/2010
  • Issued: 04/30/2013
  • Est. Priority Date: 09/24/2010
  • Status: Active Grant
First Claim
Patent Images

1. A keypad assembly comprising:

  • a) a dome configured to operatively engage a switch sensor;

    b) a dome overlay guide adhered to the dome;

    c) a key corresponding to the dome, and configured to operatively engage the dome;

    d) a light emitting source configured to emit light;

    e) a reflector layer configured to reflect light escaping the dome overlay guide;

    f) wherein the dome overlay guide is configured to receive the emitted light and direct the received light toward the key.

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