Techniques for transferring holograms into metal surfaces
US5881444A · kind A · utility
27Cited by
21References
48Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Dec 12, 1997 |
| Grant date | Mar 16, 1999 |
| Priority date | — |
| Expiry date | Dec 12, 2017 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY10T29/49982
- WIPO fieldOptics
- WIPO sectorInstruments
Abstract
A method for impressing holographic images or holograms in the surface of metal objects such as aluminum cans. The surfaces of metal shims and print rolls bearing holograms are hardened as by coating them with thin amorphous diamond coatings or diamond like coatings so the holograms can be embossed into many thousands of metal cans with clarity and consistency.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.