| 摘要 |
Ultraviolet and infrared radiation absorbing glass comprising, as basic glass components, 65 to 80% by weight of SiO2, 0 to 5% by weight of Al2O3, 0 to 10% by weight of MgO, 5 to 15% by weight of CaO, 10 to 18% by weight of Na2O, 0 to 5% by weight of K2O, 5 to 15% by weight in total of MgO and CaO, 10 to 20% by weight in total of Na2O and K2O, and 0 to 5% by weight of B2O3; and as coloring components, 0.75 to 0.95% by weight, in terms of Fe2O3, of total iron oxide, 1.2 to 1.4% by weight of CeO2, and 0 to 0.5% by weight of TiO2, and satisfying equation (I): (0.2x(CeO2)-0.04)</=(FeO/T-Fe2O3)</=(0.2x(CeO2)+0.08)(I) wherein (CeO2) represents the amount of CeO2 in terms of percent by weight, and (FeO/T-Fe2O3) represents the weight ratio of FeO in terms of Fe2O3 to the total iron oxide in terms of Fe2O3, and ultraviolet and infrared radiation absorbing glass comprising, as basic glass components, 65 to 80% by weight of SiO2, 0 to 5% by weight of Al2O3, 0 to 10% by weight of MgO, 5 to 15% by weight of CaO, 10 to 18% by weight of Na2O, 0 to 5% by weight of K2O, 5 to 15% by weight in total of MgO and CaO, 10 to 20% by weight in total of Na2O and K2O, and 0 to 5% by weight of B2O3; and, as coloring components 0.60 to 0.85% by weight, in terms of Fe2O3, of total iron oxide, 1.4 to 1.7% by weight of CeO2, and 0 to 0.5% by weight of TiO2, and satisfying the above equation (I).
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