| 申请日期 | 2026-04-25 | 申请号 | JP2016228768 |
| 公开（公告）号 | JP2018083912A | 公开（公告）日 | 2018-05-31 |
| 公开国别 | JP | 申请人省市代码 | 全国 |
| 申请人 | DAIDEN CO LTD | ||
| 简介 | PROBLEM TO BE SOLVED : To provide a mercury-free, vacuum ultraviolet-excited phosphor that exhibits deep ultraviolet light by irradiation with vacuum ultraviolet rays.
SOLUTION : A vacuum ultraviolet-excited phosphor has : rare earth elements including at least yttrium elements; praseodymium elements; aluminum elements; and oxygen elements, where the molar ratio (x) of the praseodymium elements is 0 | ||
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