| 摘要 |
This invention is directed to the production of glass microsheet which strongly resists solarization and exhibits an ultraviolet cutoff at 370 nm, the glass consisting essentially, expressed in terms of weight percent on the oxide basis, of -Na2O 6.75-7.75 B2O3 8.75-10 -K2O 6.25-7.0 SiO2 59-63 -ZnO 6.5-7.5 CeO2 4-6 -Al2O3 2-2.5 TiO2 1-3 -Sb2O3 0-0.5 CeO2 + TiO2 6-8 -
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