Luminescence characteristics detector
US7030371B2 · kind B2 · utility
30Cited by
14References
28Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Jan 26, 2002 |
| Grant date | Apr 18, 2006 |
| Priority date | — |
| Expiry date | Jan 26, 2022 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG07D7/1205
- WIPO fieldMeasurement
- WIPO sectorInstruments
Abstract
Security documents or articles carrying luminescent marker compounds which show a time-deferred emission characteristic are authenticated by a method and device which allows for rapid extraction of characteristic luminescent parameters, such as emission intensity and time constants. The method is not sensitive to perturbations by ambient light and reduces optical filtering requirements.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.