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:
Aug. 29, 2017
Filed:
Apr. 05, 2012
Valéry Petiton, Vendrest, FR;
Jean Sauvage-vincent, Saint Maur des Fossés, FR;
Alexandre Noizet, Bussy Saint Georges, FR;
Yves Jourlin, Saint Etienne, FR;
Valéry Petiton, Vendrest, FR;
Jean Sauvage-Vincent, Saint Maur des Fossés, FR;
Alexandre Noizet, Bussy Saint Georges, FR;
Yves Jourlin, Saint Etienne, FR;
Hologram Industries, Bussy Saint Georges, FR;
Universite Jean Monnet, Saint-Etienne, FR;
Abstract
According to one aspect, the invention relates to an optical safety component having a plasmonic effect intended to be observed by transmission, including two layers () made of a transparent dielectric material, a metal layer () that is arranged between said layers made of dielectric material to form two dielectric-metal interfaces (), and is structured to form on at least a portion thereof corrugations () that are capable of coupling surface plasmon modes supported by said dielectric-metal interfaces with an incident light wave. The corrugations are arranged in a first coupling area in a first main direction and in at least one second coupling area separate from said first coupling area, in a second main direction that is substantially perpendicular to said first main direction, said metal layer being continuous on each one of said coupling areas.