Method of marking a holographic matrix and holographic matrix produced by this method
US10179471B2 · kind B2 · utility
0Cited by
5References
11Claims
0Family size
Assignee
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Key dates
| Filing date | Feb 27, 2015 |
| Grant date | Jan 15, 2019 |
| Priority date | — |
| Expiry date | Feb 26, 2036 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG07D7/2033
- WIPO fieldOther consumer goods
- WIPO sectorOther fields
Abstract
A method of marking a holographic matrix. The method includes forming the holographic matrix, which is designed to produce holograms by printing. At least one anti-copy mark on the holographic matrix is formed and at least one copy-robust mark on the holographic matrix is formed. At least one of the steps for forming at least one mark on the holographic matrix uses laser-structuring of the holographic matrix surface. Preferably, the anti-copy mark represents a message and a plurality of redundancies of the message carried by the anti-copy mark. Also, preferably, a picosecond laser is used to form the anti-copy mark is formed.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.