Micro-optics for article identification
US7006294B2 · kind B2 · utility
79Cited by
3References
47Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Jan 24, 2003 |
| Grant date | Feb 28, 2006 |
| Priority date | — |
| Expiry date | Jan 24, 2023 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY10T428/24917
- WIPO fieldOptics
- WIPO sectorInstruments
Abstract
The present invention provides methods and compositions for authentication of articles and counterfeit deterrence using non-holographic micro-optics and microstructures having a surface relief greater than a few microns. Embodiments of the present invention disclose a range of distinctive optical effects obtained from micro-optic systems incorporating micro lenses, non-imaging collectors, prisms, wave guides, mirrors, gratings, structural interference filters, and photonic crystal microstructures.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.