论文部分内容阅读
单枪彩色密封油膜光阀管的原理和结构见文献[1]。它的电子枪和偏转聚焦系统由于不是整体对中装配,因此存在对中公差的要求。由于电子枪的电极尺寸和各电极之间的距离可以确定,电子束的光斑大小可从电子枪的通过率和限制膜孔的大小推算出,所以电子枪与偏转聚焦系统的对中公差要求可以据此进行估计。 (一)电子枪和偏转聚焦系统的结构 单枪彩色油膜光阀管的电子枪是皮尔斯枪,在阳极上有限制膜孔。 偏转聚焦系统包括:小偏转板、预偏转板、主偏转板和漂移环等。其中预偏转板、主
Single-gun color seal film valve principle and structure of the oil see [1]. Its electron gun and deflection focus system because it is not the overall assembly center, so there is a requirement of tolerance. Since the electrode size of the electron gun and the distance between the electrodes can be determined, the beam spot size of the electron beam can be calculated from the passing rate of the electron gun and the size of the limiting film hole, the requirement of centering tolerance between the electron gun and the defocusing focusing system can be performed accordingly estimate. (A) structure of the electron gun and deflection focusing system Single-gun color film light valve tube electron gun is a Pierce gun, there are restrictions on the anode membrane hole. Deflection focusing system includes: small deflection plate, pre-deflection plate, the main deflection plate and drift ring. Which pre-deflector plate, the main