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:
May. 23, 2023
Filed:
Mar. 22, 2019
DE LA Rue International Limited, Basingstoke, GB;
Brian Holmes, Basingstoke, GB;
DE LA RUE INTERNATIONAL LIMITED, Hampshire, GB;
Abstract
A security element including: a first layer having a first surface; an array of image regions across the surface, each region including at least first and second sub-regions; a first diffractive optically variable effect generating structure in or on the surface across the first sub-regions; and a second diffractive optically variable effect generating structure in or on the surface across the second sub-regions; wherein the surface is arranged so each first sub-region has a first average inclination and each second sub-region has a second average inclination different from the first, wherein the first structure and inclination provide that the first effect is exhibited across the first sub-regions at least at a first viewing angle and the second structure and inclination provide that the second effect is exhibited across the second sub-regions at least at a second viewing angle different from the first. Also, a method of manufacturing the security element.