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Luminescent aluminoborate glass and luminescent screen provided with such a glass
Luminescent aluminoborate glass and luminescent screen provided with such a glass
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机译:发光铝硼酸盐玻璃和装有这种玻璃的发光屏
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摘要
Luminescent aluminoborate and/or aluminosilicate glass which is activated by one or more rare earth metals. The glass has a matrix comprising from 5 to 65 mol. % of one or more of the alkaline earth metal oxides BaO, SrO, CaO, ZnO and MgO, from 20 to 85 mol. % of B.sub.2 O.sub. 3 and/or SiO.sub.2 and from 1 to 35 mol. % of Al.sub.2 O.sub.3. The glass contains as activator Tb.sup.3+ and/or Ce.sup.3+ in a quantity, calculated as Tb.sub.2 O.sub.3 and/or Ce.sub.2 O.sub.3, of 0.1 to 10 mol. % with respect to the matrix. The luminescent glasses have high conversion efficiencies, especially high quantum efficiencies upon UV excitation, and are preferably used in luminescent screens of, for example, discharge lamps or cathode-ray tubes.
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机译:由一种或多种稀土金属活化的发光铝硼酸盐和/或铝硅酸盐玻璃。玻璃具有5至65摩尔的基质。 20-85mol%的一种或多种碱土金属氧化物BaO,SrO,CaO,ZnO和MgO的%。 B.sub.2 O.sub。的百分比3和/或SiO 2和1-35摩尔。 Al 2 O 3的百分比该玻璃包含一定量的Tb 2+和/或Ce 3+作为活化剂,按Tb 2 O 3和/或Ce 2 O 3计算, 0.1至10摩尔。相对于矩阵的百分比。发光玻璃具有高的转换效率,特别是在紫外线激发时具有高的量子效率,并且优选用于例如放电灯或阴极射线管的发光屏中。
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