Optical security component
US9962987B2 · kind B2 · utility
Assignee
Inventor
Key dates
| Filing date | Jan 15, 2016 |
| Grant date | May 8, 2018 |
| Priority date | — |
| Expiry date | Jan 15, 2036 |
Classification
- Technology area (CPC B)Performing Operations; Transporting
- CPC primaryB42D25/445
- WIPO fieldOther consumer goods
- WIPO sectorOther fields
Abstract
An ID document comprises a receiving substrate in or on which an ink that is fluorescent under UV-A lighting is locally deposited, and a multilayer optical security component attached to a substrate. The optical component comprises a structurable layer and a reflective dielectric layer discontinuously deposited on the structurable layer in the plane of the component so as to produce patterns. The reflective dielectric layer has a relative transmission of at most 40% in the UV-B or UV-C range. The optical component also include an assembly of at least one layer including pigments that are fluorescent when energized by UV-B or UV-C. These are deposited on the reflective dielectric layer in a uniform or discontinuous manner in the plane of the optical component.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.