FUNNEL GLASS FOR CATHODE RAY TUBE

摘要

PROBLEM TO BE SOLVED: To provide funnel glass for a cathode ray tube suitable of recycling a color panel, a monochrome panel or a neck glass. SOLUTION: The funnel glass for the cathode ray tube contains MgO, CaO, SrO, BaO and ZnO in a glass composition as essential components. MgO+CaO+ SrO+BaO+ZnO in mass percentage is 5-13%.