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Touch-sensitive momentary-contact switch and control device having the momentary-contact switch

  • US 7,355,164 B2
  • Filed: 05/05/2005
  • Issued: 04/08/2008
  • Est. Priority Date: 05/12/2004
  • Status: Expired due to Fees
First Claim
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1. A touch-sensitive momentary-contact switch, comprising:

  • a cover;

    a transmitter disposed behind said cover and emitting electromagnetic radiation;

    a receiver disposed behind said cover and receiving electromagnetic radiation;

    at least some of the electromagnetic radiation passing through said cover;

    a first optical fiber element associated with said transmitter and having an end facing away from said transmitter;

    a second optical fiber element associated with said receiver and having an end facing away from said receiver;

    said ends of said first and second optical fiber elements being adjacent one another and adjoining said cover;

    each of said first and second optical fiber elements having an end facing toward a respective one of said transmitter and said receiver; and

    at least one indicating element emitting visible light being associated with said end of at least one of said first and second optical fiber elements facing toward a respective one of said transmitter and said receiver, said at least one indicating element being associated with both said first optical fiber element and said second optical fiber element.

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