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. 12, 1989
Filed:
Jun. 18, 1987
Applicant:
Inventors:
Yamamoto Naohiro, Aichi, JP;
Shuichiro Tokuda, Aichi, JP;
Assignee:
Mitsubishi Rayon Co., Ltd., Tokyo, JP;
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
G02B / ;
U.S. Cl.
CPC ...
350 9630 ; 350 9615 ;
Abstract
An optical fiber device comprises a core and a cladding, the core being made of an optical material having a refractive index n.sub.1, and the cladding being made of an optical material having a refractive index n.sub.2, the end of the optical fiber from which light radiates forming a plane that is inclined to the fiber axis by an angle .theta., a light reflective layer being formed at least on the outer periphery of said radiating end, and the two reractive indices n.sub.1 and n.sub.2 satisfying the following relation (1):