Invention Grant
- Patent Title: Security elements and methods of manufacture thereof
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Application No.: US17040289Application Date: 2019-03-22
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Publication No.: US11077699B2Publication Date: 2021-08-03
- Inventor: Brian Holmes , Fred Fournier , Maria King
- Applicant: DE LA RUE INTERNATIONAL LIMITED
- Applicant Address: GB Basingstoke
- Assignee: DE LA RUE INTERNATIONAL LIMITED
- Current Assignee: DE LA RUE INTERNATIONAL LIMITED
- Current Assignee Address: GB Basingstoke
- Agency: Oliff PLC
- Priority: GB1804629 20180322
- International Application: PCT/GB2019/050830 WO 20190322
- International Announcement: WO2019/180461 WO 20190926
- Main IPC: B42D25/328
- IPC: B42D25/328 ; G02B5/18 ; B42D25/324 ; B42D25/45 ; B42D25/23 ; B42D25/24 ; B42D25/29 ; B42D25/373

Abstract:
A security element including: a first layer having a first surface; an array of image regions across the first surface arranged along at least a second direction, each region including at least a first image sub-region having an average inclination defining an angle, relative to a plane of the security element, about an image region axis extending along a first direction; a diffractive optically variable effect generating structure provided in or on the first surface across the first image sub-regions, the structure including diffractive elements that extend along a direction within 45° of the first direction, wherein the structure is provided across the first image sub-regions and spatially arranged and/or modulated across the first image sub-regions in accordance with a first image so the first image is displayed by the first image sub-regions in combination at least at a first viewing angle. Also, a method of manufacturing the security element.
Public/Granted literature
- US20210031554A1 SECURITY ELEMENTS AND METHODS OF MANUFACTURE THEREOF Public/Granted day:2021-02-04
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