Laser marked device
US9333787B2 · kind B2 · utility
44Cited by
185References
15Claims
0Family size
Assignees
Inventors
Key dates
| Filing date | May 2, 2014 |
| Grant date | May 10, 2016 |
| Priority date | — |
| Expiry date | May 2, 2034 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG02B3/0056
- WIPO fieldOther consumer goods
- WIPO sectorOther fields
Abstract
An optical device projecting one or more synthetically magnified images that has been laser marked with one or more static two dimensional (2D) images is provided. The static 2D image(s) laser marked on or within this device and the synthetically magnified image(s) projected by this device help determine the authenticity of a document (e.g., passport data page) or product that employs it. Several embodiments of the inventive device also offer increased resistance to tampering or alteration and wear.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.