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Stereo endoscope

  • US 6,614,595 B2
  • Filed: 02/16/2001
  • Issued: 09/02/2003
  • Est. Priority Date: 02/16/2001
  • Status: Expired due to Term
First Claim
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1. A stereo endoscope system comprising:

  • a right optical system which forms a right image for stereoscopic observation, said right optical system includes a right objective optical system and a right relay optical system;

    a left optical system which forms a left image for stereoscopic observation, said left optical system includes a left objective optical system and a left relay optical system, and said right image and left image are images of a same object and have a parallax with each other; and

    a third optical system which forms a third image, said third optical system includes a third objective optical system and a third relay optical system, said optical systems satisfy the following conditions;

    (1) FAw/FAlr>

    1.3; and

    (2) 0.3<

    LDw/LDlr<

    0.8, wherein FAw is the field angle of view of said third optical system, FAlr is the field angle of view of said right and left optical systems;

    LDw is the maximum lens diameter of said third relay optical system; and

    LDlr is the maximum lens diameter of said left and right relay optical systems.

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