Phosphor
US9926488B2 · kind B2 · utility
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2References
13Claims
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Key dates
| Filing date | Aug 14, 2015 |
| Grant date | Mar 27, 2018 |
| Priority date | — |
| Expiry date | Jan 28, 2036 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH10H20/8512
- WIPO fieldBasic materials chemistry
- WIPO sectorChemistry
Abstract
A phosphor, having a general formula of K2[Si1-xGex]yF6:Mn1-y4+. The phosphor is excited to emit a light having a first main emission peak with a first maximum emission intensity and a first dominant wavelength, wherein a relative emission intensity S of the light of the phosphor is constantly greater than 85% across an temperature of the phosphor between 300 K and 470 K during operation, wherein S=(IT/IRT)*100%, IRT and IT are the first maximum emission intensity when the temperature of the phosphor is at 300 K and T during operation respectively, and 300 K<T≤470K.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.