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:
Sep. 15, 2015
Filed:
May. 05, 2011
Alexandre Noizet, Bussy-Saint-Georges, FR;
Valery Petiton, Vendrest, FR;
Alexandre Noizet, Bussy-Saint-Georges, FR;
Valery Petiton, Vendrest, FR;
Hologram.Industries, Bussy Saint Georges, FR;
Abstract
An optical authentication component visible in reflection having a structure imprinted on a substrate of index n, a thin layer, made of a dielectric material having a refractive index n, deposited on the structure, and a layer made of a material having an index nsimilar to n, encapsulating the structure coated with the thin layer, is disclosed. The structure has a first pattern modulated by a second pattern, the first pattern is a bas-relief with an array of facets, having shapes which are defined to simulate an image in relief of an object in relief, and the second pattern is a periodic grating that modulates the first pattern which produces, after the thin layer has been deposited and the structure has been encapsulated, a first color at a first viewing angle and a different second color at a second viewing angle, obtained by azimuthal rotation of the component.