Ultraviolet ray absorbing glass, ultraviolet ray absorbing glass plate, colored film coated ultraviolet ray absorbing glass plate and window window for vehicle

摘要

The basic glass composition of 65 to 80% SiO2, 0 to 5% Al2O3, 0 to 10% MgO, 5 to 18% Na2O, 0 to 5% K2O, 5 to 15% MgO + Cao, 10 to 20% Na2O + K2O, 0.05 to 0.3% SO3, and 0 to 5% B2O3, and total iron oxide (t-fe) converted from 0.35 to 0.55% Fe2O3 (t-fe) as the coloring component, t-fe An ultraviolet ray absorbing glass consisting of 0.08 to 0.15% FeO, 0.8 to 1.5% CeO2, and 0 to 0.5% TiO. Sub.2 and FeO converted to Fe2O3 is 20 to 27% (27%) of t-fe2o3.