Field conversion system for rigid endoscopes

Details Field conversion system for rigid endoscopes Field conversion system for rigid endoscopes

1998-04-09

1999-09-21

Leubecker, John P.

Surgery

Endoscope

With camera or solid state imager

600160, 600173, A61B 1002

Patent

active

059546344

ABSTRACT:
A field conversion system for rigid endoscopes has a rigid endoscope inserted into an object to form an optical image of the object and an imaging device connected to the rigid endoscope. The imaging device includes an imaging optical system for changing the magnification of the optical image to form a resultant image and an image sensor placed at the position of an imaging plane produced by the imaging optical system. The imaging optical system or the image sensor is moved in a direction perpendicular to the optical axis, thereby carrying out a field conversion. The rigid endoscope include an objective optical system, a relay optical system, and an eyepiece optical system. The field conversion system satisfies the following conditions:

REFERENCES:
patent: 5577991 (1996-11-01), Akui et al.
patent: 5743846 (1998-04-01), Takahashi et al.

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