Phosphor
US4495085A · kind A · utility
2Cited by
5References
9Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Feb 23, 1984 |
| Grant date | Jan 22, 1985 |
| Priority date | — |
| Expiry date | Feb 23, 2004 |
Classification
- Technology area (CPC C)Chemistry; Metallurgy
- CPC primaryC09K11/025
- WIPO fieldBasic materials chemistry
- WIPO sectorChemistry
Abstract
A phosphor which emits white light upon excitation and is characterized by a long decay time, the phosphor consisting of a host material of calcium silicate having the formula: EQU CaO.xSiO.sub.2 where x is in the range from 0.5 to 1, and an activator consisting of dysprosium (Dy) in the ratio of 0.05 to 10 mol % of each 1 mol of the host material.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.