Red emitting long decay phosphors
US5650094A · kind A · utility
10Cited by
2References
43Claims
0Family size
Inventors
Key dates
| Filing date | Jun 6, 1995 |
| Grant date | Jul 22, 1997 |
| Priority date | — |
| Expiry date | Jun 6, 2015 |
Classification
- Technology area (CPC C)Chemistry; Metallurgy
- CPC primaryC09K11/7703
- WIPO fieldBasic materials chemistry
- WIPO sectorChemistry
Abstract
Long decay phosphors are disclosed that are comprised of rare-earth activated divalent titanates. In particular, the long decay phosphors are comprised of EQU (Ca.sub.(1-a-b) Pr.sub.a M.sub.b)O.TiO.sub.2 wherein PA1 0.00001.ltoreq.a.ltoreq.0.1 and PA1 0.0.ltoreq.b.ltoreq.0.3 and M is Zn and/or Mg.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.