Use of a compound based on a rare-earth phosphate as a luminophor in plasma systems
US5916482A · kind A · utility
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4Claims
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Assignee
Inventor
Key dates
| Filing date | Nov 14, 1997 |
| Grant date | Jun 29, 1999 |
| Priority date | — |
| Expiry date | Nov 14, 2017 |
Classification
- Technology area (CPC C)Chemistry; Metallurgy
- CPC primaryC09K11/7795
- WIPO fieldBasic materials chemistry
- WIPO sectorChemistry
Abstract
The invention relates to the use as a luminophor in plasma systems of a compound based on an yttrium, lanthanum, gadolinium or lutecium phosphate doped with at least one rare earth chosen from the group comprising terbium, praseodymium, europium and cerium.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.