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Electron holography microscope

  • US 4,532,422 A
  • Filed: 03/04/1983
  • Issued: 07/30/1985
  • Est. Priority Date: 03/12/1982
  • Status: Expired due to Term
First Claim
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1. An electron holography microscope system comprising:

  • (a) an electron holography microscope for producing an interference pattern of a specimen;

    (b) image forming means for producing an electrical output signal produced by the scanning of the interference pattern of the specimen formed by the electron holography microscope;

    (c) means for generating a signal representing a straight line fringe pattern as a basic fringe pattern produced by scanning an image of spaced apart parallel lines as basic fringes, the spacing between the interference fringes of the interference pattern and the spaced apart parallel lines being such that the ratio of the spacing between adjacent parallel spaced apart lines and the spacing between adjacent interference fringes is 1 or 1/n, where n is an integer;

    (d) means for combining the straight line fringe signal and the electrical output signal of the image forming means to produce a composite signal; and

    (e) means for displaying the composite signal to produce a composite image of the interference pattern of the specimen and the straight line fringe signal.

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