Method to reduce darkening in phosphor in glass (PIG) made by SPS
US11046607B2 · kind B2 · utility
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20Claims
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Key dates
| Filing date | Feb 6, 2019 |
| Grant date | Jun 29, 2021 |
| Priority date | — |
| Expiry date | Dec 15, 2039 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH10H20/80
- WIPO fieldBasic materials chemistry
- WIPO sectorChemistry
Abstract
A method for preparing a glass composite wavelength converter comprising the steps of providing at least one phosphor material, providing a powder of glass components, mixing the phosphor material and the powder of glass components, thereby preparing a first mixture, adding at least one oxidizing agent to the first mixture, mixing the oxidizing agent with the first mixture, thereby preparing a second mixture, applying pressure and current to the second mixture, thereby preparing a glass composite wavelength converter is described. Furthermore, a glass component wavelength converter and a light source are described.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.