Manganese-and-magnesium-activated strontium sulfide phosphors
US3977991A · kind A · utility
0Cited by
3References
2Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Feb 24, 1975 |
| Grant date | Aug 31, 1976 |
| Priority date | — |
| Expiry date | Feb 24, 1995 |
Classification
- Technology area (CPC C)Chemistry; Metallurgy
- CPC primaryC09K11/576
- WIPO fieldBasic materials chemistry
- WIPO sectorChemistry
Abstract
Manganese-and-magnesium-coactivated strontium sulfide phosphors are both photoluminescent and cathodoluminescent. The incorporation of small amounts (5 to 1000 ppm) of magnesium into manganese-activated strontium sulfide phosphors shifts the CIE emission color coordinates from about x = 0.323 and y = 0.650 for the magnesium-free phoshor to about x = 0.370 and y = 0.611, for the maximum amount of incorporated magnesium.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.