High transmittance green glass with improved UV absorption

摘要

The invention is a green soda-lime-silica glass composition having excellent ultra violet absorbing ability while having a relatively high light transmittance. The colorants of the glass composition consist essentially of: greater than 0.5 to 1.5 wt. % total iron oxide as Fe2O3; wherein the weight ratio of Fe+2/Fe+3 is less than 0.35; 0.10 to 2.00 wt. % manganese compound as MnO2; and optionally any of: up to 1.00 wt. % titanium oxide as TiO2, up to 1.00 wt. % cerium oxide as CeO2; up to 1.00 wt. % vanadium oxide as V2O5; and up to 0.20 wt. % chromium oxide as Cr2O3; the glass composition having, at 4.0 mm. thickness: 55 to 80% light transmittance using Illuminant A with less than 46% ultra violet transmittance measured over the range of 300 to 400 nanometers.