Photoluminescent phosphor powders, methods for making phosphor powders and devices incorporating same
US6197218A · kind A · utility
48Cited by
26References
27Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Aug 27, 1998 |
| Grant date | Mar 6, 2001 |
| Priority date | — |
| Expiry date | Aug 27, 2018 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY10S283/901
- WIPO fieldBasic materials chemistry
- WIPO sectorChemistry
Abstract
Photoluminescent phosphor powders and a method for making phosphor powders. The phosphor powders have a small particle size, narrow particle size distribution and are substantially spherical. The method of the invention advantageously permits the economic production of such powders. The invention also relates to improved devices, such as display devices and lighting elements, incorporating the phosphor powders.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.