| 摘要 |
A wavelength-converting member with high emission intensity and that is superior in weather resistance and reliability is obtained. There is provided a phosphor on which a cleaning treatment and/or a coating treatment are/is performed is contained in a glass material having a composition of SiO<SUB>2</SUB>: 30 to 50%, Li<SUB>2</SUB>O: 0 to 15%, Na<SUB>2</SUB>O: 0 to 10%, K<SUB>2</SUB>O 0 to 10%, Li<SUB>2</SUB>O+Na<SUB>2</SUB>O+K<SUB>2</SUB>O: 20 to 30%, B<SUB>2</SUB>O<SUB>3</SUB>:5 to 15%. MgO: 0 to 10%, BaO: 0 to 10% , CaO: 0 to 10%, SrO: 0 to 10%, Al<SUB>2</SUB>O<SUB>3</SUB>: 0 to 10%, ZnO: 0 to 15%, TiO<SUB>2</SUB>: 10 to 20%, Nb<SUB>2</SUB>O<SUB>5</SUB>: 1 to 5%, La<SUB>2</SUB>O<SUB>3</SUB>: 0 to 5%, and TiO<SUB>2</SUB>+Nb<SUB>2</SUB>O<SUB>5</SUB>+La<SUB>2</SUB>O<SUB>3</SUB>: 11 to 20% by mole percentage.
|
