| 摘要 |
PROBLEM TO BE SOLVED: To provide a wavelength conversion member reduced in emission intensity with the lapse of time when the light of LED or LD is emitted, and a light-emitting device using the same.SOLUTION: Provided is a wavelength conversion member in which an inorganic phosphor is dispersed into a glass matrix, in which the glass matrix comprises, by mol%, 40 to 60% SiO, 0.1 to 35% BO, 0.1 to 10% AlO, 0 to 10% LiO, 0 to 10% NaO, 0 to 10% KO, 0.1 to 10% LiO+NaO+KO, 0 to 35% MgO, 0 to 35% CaO, 0 to 35% SrO, 0 to 35% BaO, 0.1 to 35% MgO+CaO+SrO+BaO and 0 to 15% Zn, and the inorganic phosphor is at least one kind selected from oxide phosphors, nitride phosphors, acid nitride phosphors, chloride phosphors, acid chloride phosphors, halide phosphors, aluminate phosphors and halophosphate chloride phosphors. |
