Patent ID: 7811471

Claim:
A wavelength-converting member, containing a phosphor on which a cleaning treatment and/or a coating treatment are/is performed, in a glass material having a composition of SiO 2 : 30 to 50%, Li 2 O: 0 to 15%, Na 2 O: 0 to 10%, K 2 O: 0 to 10%, Li 2 O+Na 2 O+K 2 O: 20 to 30%, B 2 O 3 : 5 to 15%, MgO: 0 to 10%, BaO: 0 to 10%, CaO: 0 to 10%, SrO: 0 to 10%, Al 2 O 3 : 0 to 10%, ZnO: 0 to 15%, TiO 2 : 10 to 20%, Nb 2 O 5 : 1 to 5%, La 2 O 3 : 0 to 5%, and TiO 2 +Nb 2 O 5 +La 2 O 3 : 11 to 20% by mole percentage.