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:
Apr. 21, 2009
Filed:
May. 01, 2006
Igor Milicevic, Helmond, NL;
Frans Gooijer, Eindhoven, NL;
Eric Aloysius Kuijpers, Eindhoven, NL;
Dennis Robert Simons, Eindhoven, NL;
Rob Hubertus Matheus Deckers, Eindhoven, NL;
Igor Milicevic, Helmond, NL;
Frans Gooijer, Eindhoven, NL;
Eric Aloysius Kuijpers, Eindhoven, NL;
Dennis Robert Simons, Eindhoven, NL;
Rob Hubertus Matheus Deckers, Eindhoven, NL;
Draka Comteq B.V., Amsterdam, NL;
Abstract
A preform for manufacturing an optical fibre or an optical fiber, where the variation in the refractive index contrast of the preform does not exceed an absolute value of 2%, measured for a preform having a length of at least 60 cm, or the deviation of the preform in relation to the average value of the profile parameter α does not exceed an absolute value of 0.03, measured for a preform having a length of at least 80 cm. The optical fibre has a deviation from the average value of the profile shape parameter α of maximally about 0.03.