OPTICAL GLASS

摘要

30-40%, Li2O: 2.5-6%, ZnO: 10-17%, La2O3: 12-22%, Gd2O3: 15-25%, SiO2: 0-5%, Bi2O3: 0-5%, Al2O3: 0-15%, ZrO2: 0-3%, WO3: 0-5%, Ta2O5: 0-5%, TiO2: 0-3%, Y2O3: 0-5% and MgO+CaO+SrO+BaO: 0-5% in mass %.