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:
May. 17, 1988
Filed:
Oct. 21, 1985
Applicant:
Inventors:
Assignee:
Nippon Sheet Glass Co., Ltd., Hyogo, JP;
Attorney:
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
G02B / ;
U.S. Cl.
CPC ...
350 9618 ; 350413 ;
Abstract
An optical coupler comprises a lens for coupling a light source and an optical fiber wherein the lens comprises a transparent column in which a refractive index n(r) at a distance r from an optical axis is expressed by n.sup.2 (r)=n.sub.0.sup.2 {1-(gr).sup.2 +h.sub.4 (gr).sup.4 +h.sub.6 (gr).sup.6 +h.sub.8 (gr).sup.8 + . . . }, and satisfies the following conditions when Sf=g/0.3:
Ueno, Hiroshi. (1988). Optical coupler (U.S. Patent No. 4744620). U.S. Patent and Trademark Office. https://idiyas.com/patent/badge/4744620
Data source: USPTO (United States Patent and Trademark Office) public patent records. Weekly synchronization. How IDiyas builds this profile