Optical anti-counterfeiting element and optical anti-counterfeiting product using the same
US11981157B2 · kind B2 · utility
Assignees
Inventors
Key dates
| Filing date | Feb 10, 2021 |
| Grant date | May 14, 2024 |
| Priority date | — |
| Expiry date | Dec 27, 2042 |
Classification
- Technology area (CPC B)Performing Operations; Transporting
- CPC primaryB42D25/328
- WIPO fieldOther consumer goods
- WIPO sectorOther fields
Abstract
Disclosed are an optical anti-counterfeiting element and an optical anti-counterfeiting product utilizing the same, the optical anti-counterfeiting element comprising: a substrate (12) including a first surface and a second surface opposite to each other; micro-sampling tools (11) on the first surface; and one or more micro graphic and text units formed on the second surface, wherein the micro graphic and text unit includes micro graphic and text strokes, the micro graphic and text strokes are arranged in a non-periodic and non-fixed-geometry manner, and when the second surface is observed through the micro-sampling tools, a stereoscopic animated anti-counterfeiting feature can be seen.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.