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Multiple masking imaging system

  • US 4,075,483 A
  • Filed: 07/12/1976
  • Issued: 02/21/1978
  • Est. Priority Date: 07/12/1976
  • Status: Expired due to Term
First Claim
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1. A system for imaging non-diffracting radiation comprising:

  • a detector of such radiation incident thereupon from a subject, said detector including means for providing an array of signals representing locations of impingement of said radiation upon said detectors;

    means for masking such radiation propagating from said subject to said detector, said masking means providing a sequence of spatial modulation patterns to said radiation, the modulation of said radiation by each of said spatial modulation patterns varying the magnitudes of signals of said array of detector signals in accordance with respective ones of said modulation patterns; and

    means coupled between said detector and said masking means for digitally filtering signals of said array with weighting factors corresponding to individual ones of said modulation patterns to provide an image of said subject.

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