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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.:

US 4911522 B1

PDFFull Text
Date of Patent:
Mar. 27, 1990

Filed:

Apr. 03, 1984

Core alignment system for optical fibers

Applicant:
Inventors:

Yoshinao Iwamoto, Saitama, JP;

Yuichi Shirasaki, Tokyo, JP;

Masayuki Fujise, Kanagawa, JP;

Kenichi Asakawa, Tokyo, JP;

Assignee:

Duo-Fast Corporation, Franklin Park, IL (US);

Attorney:

Mason, Kolehmainen, Rathburn & Wyss

Primary Examiner:

William L Sikes

Assistant Examiner:

Robert E Wise

Int. Cl.
CPC ...
G02B / ;
U.S. Cl.
CPC ...
350 9621 ;
Abstract

A core alignment system for aligning a pair of optical fibers to be spliced, in which core alignment is accomplished by applying a pair of aligned beams of light emitted in opposite directions by a semiconductor laser to the butt joint ends of a pair of optical fibers to be spliced, detecting a leakage beam leaking from a side surface of each optical fiber close to the laser, and adjusting the positioning of the optical fibers so that the leakage beams are minimized.

Find Patent Forward Citations

Iwamoto, Yoshinao. (1990). Core alignment system for optical fibers (U.S. Patent No. 4911522). U.S. Patent and Trademark Office. https://idiyas.com/patent/badge/4911522

Data source: USPTO (United States Patent and Trademark Office) public patent records. Weekly synchronization. How IDiyas builds this profile

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