Optical article having anti-theft feature and a system and method for inhibiting theft of same
US7653919B2 · kind B2 · utility
16Cited by
2References
18Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Nov 21, 2005 |
| Grant date | Jan 26, 2010 |
| Priority date | — |
| Expiry date | Feb 15, 2027 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG11B23/282
- WIPO fieldAudio-visual technology
- WIPO sectorElectrical engineering
Abstract
An optical article that can transform from a pre-activated state of functionality to an activated state of functionality is provided. The optical article includes a radio frequency circuitry coupled to the optical article for interacting with a signal, wherein the signal comprises a thermal signal, an electrical signal, or both, and a convertible material in operative association with the radio frequency circuitry for altering the functionality of the optical article from the pre-activated state to the activated state upon interaction with the thermal energy.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.