发明授权
US4672261A Electron gun for color picture tube 失效
电子枪彩色显像管

Electron gun for color picture tube
摘要:
An inline electron gun for color picture tube comprises a main lens including a plurality of electrodes spaced apart to each other and each of these electrodes has a pheripheral rim. Two of these peripheral rims oppose to each other and at least one of the peripheral rims has such an uneven shape that focusing force for the electron beams is increased.
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