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:
Dec. 26, 2006
Filed:
Mar. 09, 2002
Christian Jakobsen, Virum, DK;
Jes Broeng, Birkerod, DK;
Guillaume Vienne, Kobenhavn V, DK;
Peter M. Skovgaard, Birkerod, DK;
Christian Jakobsen, Virum, DK;
Jes Broeng, Birkerod, DK;
Guillaume Vienne, Kobenhavn V, DK;
Peter M. Skovgaard, Birkerod, DK;
Crystal Fibre A/S, Birkerod, DK;
Abstract
A preform for a microstructured fibre or a part for a preform for a microstructured fibre. The preform or part has a length in the longitudinal direction and a cross section perpendicular thereto, and includes a rod arranged at the centre of the preform or part, with one or more tubes being concentric to the rod. The rod is sleeved inside a first of the concentric tubes, and the rod and/or at least one of the concentric tubes has grooves and/or slits extending in the longitudinal direction, with the number of innermost longitudinally extending grooves and/or slits with respect to a centre of the preform or part being at least six.