Laser-marked article with moire pattern
US10365499B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Aug 29, 2013 |
| Grant date | Jul 30, 2019 |
| Priority date | — |
| Expiry date | Mar 3, 2034 |
Classification
- Technology area (CPC B)Performing Operations; Transporting
- CPC primaryB44C1/228
- WIPO fieldMachine tools
- WIPO sectorMechanical engineering
Abstract
The invention relates to an article (I) that in at least one region (2) consists of a transparent or translucent material, in particular of glass, wherein the article (I) comprises a dynamic moire pattern in the transparent or translucent region (2), and wherein the moire pattern comes about by superimposing at least two, preferably precisely two, laser-engraved grid structures (3), which at least in regions are visually separated from each other. The grid structures (3) are located: in different layers (4) inside the transparent or translucent region (2); or in at least one layer (4) inside and in a coating (5) of at least one surface of the transparent or translucent region (2); or in at least one first layer (4) inside the transparent or translucent region (2) and at least one second virtual layer (6) that is produced by reflecting the first layer (4) at a reflecting surface (7).
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.