Synthesis of moving and beating moiré shapes
US11351810B2 · kind B2 · utility
1Cited by
8References
21Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Sep 10, 2020 |
| Grant date | Jun 7, 2022 |
| Priority date | — |
| Expiry date | Sep 12, 2040 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG07D7/207
- WIPO fieldOther consumer goods
- WIPO sectorOther fields
Abstract
The present invention proposes a method for producing an authenticable moiré shape that simultaneously moves and shows a beating effect. The method relies on a combination of the 1D or the 2D moiré and the level line moiré. When tilting a compound showing such a moiré, the moiré shape moves, its intensity levels change significantly but its shape remains the same and is recognizable. Embodiments comprise a base layer made of patterned metallic tiny shapes and a revealing layer made of a 1D array of cylindrical lenslets or of a 2D array of spherical or aspherical lenslets.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.