Manufacturing method for phosphor glass thin plate and piece thereof, and phosphor glass thin plate and piece thereof
US11433500B2 · kind B2 · utility
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12Claims
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Key dates
| Filing date | Jan 28, 2019 |
| Grant date | Sep 6, 2022 |
| Priority date | — |
| Expiry date | Jul 7, 2039 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH10H20/8514
- WIPO fieldMachine tools
- WIPO sectorMechanical engineering
Abstract
Provided is a manufacturing method for a thin phosphor glass plate by which a thin phosphor glass plate can be more certainly produced. A manufacturing method includes the steps of: preparing a phosphor glass base material 21 having a first principal surface 21a and a second principal surface 21b opposed to each other; placing the phosphor glass base material 21 on a stage 22 and fixing the second principal surface 21b onto the stage 22; and polishing the first principal surface 21a of the phosphor glass base material 21 with a polishing member 23 including an abrasive layer 24.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.