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阴极射线管用于显示系统,需要考虑四项比较重要的特性,即分辨度(光点尺寸)、亮度、反差度和萤光粉类型。它的偏转和聚焦的方式,可以采用静电式、电磁式或者二者的混合式,它们各有其优缺点。一般说来,电磁式电子光学系统能够获得较细光点,但是工作速度较低,因为它的偏转元件的惯性比较大。 20.阴极射线管的分辨度。阴极射线管的各种参量对于电子束在管屏上形成的光点尺寸的影响,一般都通过试验来测定。例如,升高第二栅极电压EG_2,则光点尺寸S缩小;两
Cathode ray tubes for display systems need to consider four more important features, namely resolution (spot size), brightness, contrast and phosphor type. Its deflection and focus of the way, you can use electrostatic, electromagnetic or a hybrid of the two, they each have their advantages and disadvantages. In general, the electromagnetic electro-optical system can obtain a finer spot, but the working speed is lower because of its relatively large inertia of the deflection element. 20 cathode ray tube resolution. The influence of various parameters of the cathode ray tube on the size of the spot formed by the electron beam on the tube panel is generally determined experimentally. For example, when the second gate voltage EG_2 is increased, the spot size S is reduced;