Multichannel optically variable device
US10215992B2 · kind B2 · utility
Assignee
Inventor
Key dates
| Filing date | Aug 19, 2011 |
| Grant date | Feb 26, 2019 |
| Priority date | — |
| Expiry date | Mar 15, 2032 |
Classification
- Technology area (CPC B)Performing Operations; Transporting
- CPC primaryB42D2035/50
- WIPO fieldOther consumer goods
- WIPO sectorOther fields
Abstract
A security element, a security device including a security element and a method of manufacturing a security device. The element having focusing elements and image elements, the image elements are located in an object plane such that each image element is associated with one of the focusing elements, wherein the object plane includes at least first and second distinct subregions, and an image element within the first subregion is phase-displaced by a phase-displacement distance with respect to an image element within the second subregion, and wherein the first and second subregions produce first and second optically variable images or part-images.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.