UV-emitting strontium borate phosphor with improved holdover stability
US7309454B2 · kind B2 · utility
0Cited by
11References
14Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Apr 25, 2005 |
| Grant date | Dec 18, 2007 |
| Priority date | — |
| Expiry date | May 3, 2026 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY10T428/2993
- WIPO fieldBasic materials chemistry
- WIPO sectorChemistry
Abstract
A UV-emitting phosphor comprising SrB4O7:Eu phosphor particles that have been treated to yield a surface layer containing from greater than 0 to about 25 atomic percent aluminum. The holdover stability of the treated SrB4O7:Eu phosphor improves the 100-hour maintenance in a fluorescent tanning lamp to the extent that the treated phosphor may be subject to a holdover period of more than 25 days without a significant change in its 100-hour maintenance.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.