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1.投影管背投彩电采用的投影管,与普通彩电采用的显像管类同,都具有灯线、阴极、帘栅极、阳极等电极为电真空器件,且在锥体部分装有偏转线圈,包括:主线圈、副线圈和中心磁铁,在管径部分还装有速度调制线圈等。
1. Projection tube rear projection TV projection tube used with the ordinary color CRT with the same category, with a light line, the cathode, the screen grid, anode and other electrodes for the vacuum device, and in the cone part is equipped with deflection coils, Including: the main coil, the secondary coil and the center of the magnet, the diameter part of the tube is also equipped with speed modulation coil.