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. 09, 1986
Filed:
Nov. 13, 1984
Applicant:
Inventors:
Kimihiko Nishioka, Hachioji, JP;
Nobuo Yamashita, Hachioji, JP;
Assignee:
Olympus Optical Co., Ltd., Tokyo, JP;
Attorney:
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
G02B / ; G02B / ;
U.S. Cl.
CPC ...
350442 ; 350 961 ;
Abstract
An illumination optical system for an endoscope in which, by arranging a cylindrical reflection member between a light guide and a lens system, a distribution curve of luminous intensity is improved with the effective utilization of illumination light and yet the formation of the image of the light guide end face on the object surface is obviated, thereby enabling attainment of a uniform illumination over the object surface.