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:
Nov. 17, 1981
Filed:
May. 08, 1979
Applicant:
Inventor:
Ken-ichi Nakahashi, Hachiouji, JP;
Assignee:
Olympus Optical Co., Ltd., Tokyo, JP;
Attorney:
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
G02B / ;
U.S. Cl.
CPC ...
350 42 ;
Abstract
An optical system for endoscopes comprising an objective lens, a plural number of relay lenses for consecutively transferring the image formed with said objective lens and an eyepiece. In said optical system, the whole or portion of one of said relay lenses can be displaced along the optical axis to vary magnification level of said optical system.