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:
Nov. 05, 2019
Filed:
Dec. 24, 2014
Surys, Bussy Saint Georges, FR;
Jean Sauvage-Vincent, Saint Maur les Fosses, FR;
SURYS, Bussy Saint Georges, FR;
Abstract
The invention relates to a plasmonic optical security component comprising two layers () made of transparent dielectric material and a metal layer () arranged between said transparent dielectric material layers in order to form two dielectric-metal interfaces (). The metal layer is structured to form, on a first coupling region, a first periodic, two-dimensional coupling array (C) which is capable of coupling surface plasmon modes, which are supported by said dielectric-metal interfaces, to an incident light ray, the first coupling array having a profile which does not have point symmetry in any of the directions thereof, and, on a second coupling region, a second periodic, two-dimensional coupling array (C) which is capable of coupling surface plasmon modes, which are supported by said dielectric-metal interfaces, to an incident light ray, the second coupling array having a profile which does not have point symmetry in any of the directions thereof and is different from that of the first coupling array.