two-side phosphor

There are two methods of getting P20 type light source: ( 1) The P20 type light source is composed of a mini-oscillotron, screen of which is coated with P20 type phosphor, and four power supplies.

本文讨论了获得P20光源的两种方法：（1）一个涂有P20萤光粉的不聚焦不偏转的小型示波管和四套电源组成的P20型光源；

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Electroluminescent ( EL ) displays produce light when electrons hit a phosphor layer sandwiched between two insulating layers.

在场致发光 ( EL ) 显示器中,当电子击中夹在两层绝缘层中间的荧光粉层时就产生光.

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