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:
Oct. 13, 1981
Filed:
Jul. 05, 1979
Applicant:
Inventors:
Nobuo Yamashita, Tama, JP;
Miwako Maeda, Hino, JP;
Assignee:
Olympus Optical Co., Ltd., Tokyo, JP;
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
G02B / ;
U.S. Cl.
CPC ...
350 9618 ; 350480 ;
Abstract
An optical system for connecting a first light guide to a second light guide in such a manner that the rays emerging from said first light guide are incident on said second light guide. Said optical system is so adapted as to assure favorable angular distribution characteristic and plane luminous intensity distribution by arranging the emerging end surface of said first light guide in the vicinity of the front focal point of said optical system and the end surface of incidence of said second light guide in the vicinity of the rear focal point of said optical system respectively.