Photoluminescent markings with functional overlayers
US8097843B2 · kind B2 · utility
208Cited by
3References
18Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | May 6, 2011 |
| Grant date | Jan 17, 2012 |
| Priority date | — |
| Expiry date | May 6, 2031 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG06K2019/06225
- WIPO fieldControl
- WIPO sectorInstruments
Abstract
A photoluminescent marking that includes at least one functional overlayer is disclosed. The overlayer generally provides for at least one of selective filtration, reflection and absorption of wavelengths that may cause photolytic degradation of underlying photoluminescent materials. A method of fabrication is provided.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.