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.

Date of Patent:
Jan. 10, 1989

Filed:

Nov. 09, 1987
Applicant:
Inventors:

Thanh Ho, Indianapolis, IN (US);

Gerald T Fattic, Anderson, IN (US);

Assignee:

General Motors Corporation, Detroit, MI (US);

Attorney:
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
H01J / ;
U.S. Cl.
CPC ...
250227 ; 2502 / ; 350320 ;
Abstract

An optical sensor has a gap for a toothed modulator wheel and accurately aligned optical fibers on either side of the gap. The fibers form a U-shape to allow compact sensor design. The sensor is fabricated by inserting a single optical fiber in a mold and supporting the fiber in a U-shape such that the bottom of the U bend includes a straight portion. A thermosetting material is molded around the fiber to form a body and encapsulsate the fiber. A gap is formed by excluding or removing the resin from the region of the straight portion. A part of the straight portion of the fiber at the gap is removed so that the remaining spaced ends are inherently aligned across the gap.


Find Patent Forward Citations

Ho, Thanh. (1989). Optical sensor and method of making same (U.S. Patent No. 4797549). U.S. Patent and Trademark Office. https://idiyas.com/patent/badge/4797549

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

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