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Electrostatic fiber optic scanning device

  • US 4,234,788 A
  • Filed: 04/06/1979
  • Issued: 11/18/1980
  • Est. Priority Date: 04/06/1979
  • Status: Expired due to Term
First Claim
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1. A fiber optic scanning device with improved electrostatic positioning comprising:

  • an optical fiber of predetermined length having one unsupported end for scanning, and having another end rigidly supported in a cantilevered fashion;

    electrically conductive means rigidly attached to said fiber and extending from said unsupported end to said supported end;

    a transparent conductive plate lying in a plane perpendicular to the length of said fiber and spaced apart from said unsupported end to form a capacitance C with said conductive means;

    a voltage source V coupled between said transparent conductive plate and said electrically conductive means on said fiber to thereby produce an electrostatic charge Q on said conductive means near said movable end where Q=VC; and

    p1 means for generating an electric field E transverse to the length of said fiber to position said movable end with a force F=QE.

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