| 摘要 |
PROBLEM TO BE SOLVED: To provide high-refractive-index glass which is matched with a refractive index nd of an organic light-emitting element or a transparent conductive film, irrespective of the small content of rare metal oxides (especially, LaO, NbOand GdO), and which has excellent devitrification resistance and acid resistance.SOLUTION: This high-refractive-index glass includes as a glass composition, in terms of mass%, 30-60% SiO, 0-15% BO, 0-15% AlO, 0-10% LiO, 0-10% NaO, 0-10% KO, 20-60% MgO+CaO+SrO+BaO+ZnO, 0.0001-20% TiO, 0-20% ZrO, and 0-10% LaO+NbO, and has a refractive index nd of 1.55-2.3. |
