The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.
The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.
Patent No.:
Date of Patent:
Sep. 10, 1991
Filed:
Jul. 20, 1990
Applicant:
Inventors:
Helmut Lehmann, Kraichtal-Menzingen, DE;
Siegfried Karst, Eisingen, DE;
Assignee:
Richard Wolf GmbH, Knittlingen, DE;
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
G02B / ;
U.S. Cl.
CPC ...
385117 ; 385115 ;
Abstract
In an endoscope optical system comprising an inner tube accommodating the optical components of the system and an outer tube enclosing the inner tube, optical fibers are disposed in the chamber defined between the two tubes, for transmitting light to a site to be inspected by means of the endoscope. For uniform illumination of the site to provide images to satisfactory quality, coaxial or paraxial arrangement of the inner tube within the outer tube is achieved by bridging the chamber by means of webs extending longitudinally of the tubes, the optical fibers being accommodated in sub-chambers defined between the webs.