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:
Jan. 06, 1976
Filed:
Nov. 19, 1973
Applicant:
Inventor:
Richard Burnaby Dyott, London, EN;
Assignee:
The Post Office, London, EN;
Attorney:
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
G02B / ; C03C / ; C03C / ;
U.S. Cl.
CPC ...
350 96 ; 350 / ; 65-3 ; 65-4 ; 65DI / ;
Abstract
A dielectric optical waveguide can be made by forming a bundle of rods in which a single rod made of glass suitable for forming the core of the dielectric optical waveguide is surrounded by three rods made of a glass suitable for forming the cladding of the dielectric optical waveguide. The bundle of rods is heated and drawn down to a suitable size. By increasing the number of rods in the bundle it is possible to make a dielectric optical waveguide with a plurality of cores.