Method for producing a conversion element
US10287492B2 · kind B2 · utility
Assignee
Inventor
Key dates
| Filing date | Aug 5, 2016 |
| Grant date | May 14, 2019 |
| Priority date | — |
| Expiry date | Aug 5, 2036 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH10H20/882
- WIPO fieldBasic materials chemistry
- WIPO sectorChemistry
Abstract
A method for producing a conversion element is disclosed. In an embodiment, the method includes providing an acidic medium having a pH value of less than 2, adding a conversion material into the acidic medium thereby forming a mixture and adding a silicate solution having a viscosity between 2 to 10 000 poize inclusive to the mixture such that the pH value during the addition of the silicate solution is smaller than 2. The method further includes obtaining a precipitate which contains the conversion material and silicon dioxide as a matrix material, separating the precipitate, washing the precipitate with a washing medium, wherein the washing medium has a pH value of less than 2; and hardening the precipitate thereby forming the conversion element.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.