Anti-fake identification device and method for making the same
US7823788B2 · kind B2 · utility
0Cited by
3References
18Claims
0Family size
Assignees
Inventors
Key dates
| Filing date | Dec 29, 2007 |
| Grant date | Nov 2, 2010 |
| Priority date | — |
| Expiry date | Mar 10, 2029 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG09F13/20
- WIPO fieldAudio-visual technology
- WIPO sectorElectrical engineering
Abstract
An anti-fake identification (14) includes a light-emitting layer (144) and a pattern layer (142). The light-emitting layer includes ultraviolet radiation photo initiator. The pattern layer has some through holes defined therein so as to form a pattern. Under ultraviolet radiation, the light-emitting layer emits light and the light passes through the pattern layer so as to show a pattern.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.