Al2O3-SiO2-based oxide phosphor
US8470201B2 · kind B2 · utility
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19Claims
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Key dates
| Filing date | Jun 14, 2012 |
| Grant date | Jun 25, 2013 |
| Priority date | — |
| Expiry date | Jun 14, 2032 |
Classification
- Technology area (CPC C)Chemistry; Metallurgy
- CPC primaryC09K11/77064
- WIPO fieldBasic materials chemistry
- WIPO sectorChemistry
Abstract
An oxide phosphor that is highly durable and produces visible light when excited by exposure to near-ultraviolet excitation light, comprising an oxide having the composition represented by the formula (Al2O3)x.(SiO2)1-x, where 0<x<1, and an activating element M.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.