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Arrangement for optical image processing

  • US 4,786,149 A
  • Filed: 05/20/1987
  • Issued: 11/22/1988
  • Est. Priority Date: 05/22/1986
  • Status: Expired due to Fees
First Claim
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1. An arrangement for optical image processing by spatial filtering, particularly for converting electronic image information into optical image information and for Fourier transformation, comprising a two-dimensional optical filter comprising a microstructured grid having windows, the windows being provided with electrostatically movable thin-film terminations, and further comprising electron beam means for controlling the position of the thin-film terminations thereby opening and closing the windows.

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