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Technique for depth of field viewing of images using an endoscopic instrument

  • US 20030055314A1
  • Filed: 06/13/2002
  • Published: 03/20/2003
  • Est. Priority Date: 11/23/1993
  • Status: Abandoned Application
First Claim
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1. A system comprising:

  • (a) an endoscope including a guide having a working channel, a light source and a lens, said guide coupled to means for receiving a medical instrument, to means for irrigating and to means for supplying a video image; and

    (b) said endoscope coupled to a video camera;

    (c) said video camera coupled to a video monitor;

    (d) said video monitor coupled to a transparent screen which includes a plurality of generally parallel microprisms formed in the screen and extending horizontally across the width of the screen, said screen also coupled to an optical element operable to adjust the paths of light transmitted through said screen.

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