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. 28, 2013
Filed:
Nov. 06, 2007
Antonio Schiaffo, Salerno, IT;
Franco Cocchini, Salerno, IT;
Nicola Scafuro, Mercato San Severino, IT;
Giuseppe Galasso, S.antonio Abate, IT;
Antonio Schiaffo, Salerno, IT;
Franco Cocchini, Salerno, IT;
Nicola Scafuro, Mercato San Severino, IT;
Giuseppe Galasso, S.antonio Abate, IT;
Prysmian S.p.A., Milan, IT;
Abstract
A process for manufacturing an optical fiber includes: drawing an optical waveguide from a glass preform; applying a layer of a first coating material on the optical waveguide; curing the first coating layer material to obtain a first coating layer; applying a layer of a second coating material onto the first coating layer; applying a layer of colored coating material onto the second coating layer; curing the second coating material and the colored coating material in a single step to obtain a second coating layer superposed on the first coating layer and a colored coating layer superposed on the second coating material layer, the obtained second coating layer having an elastic modulus higher than that of the first coating layer and lower than that of the colored coating layer. An optical fiber and an apparatus for producing it are also provided.