| 摘要 |
The gun has a specially designed main lens forming electrodes for focusing electron beams into the certain point of a screen. A bottom unit (30) of shielding cup (32) having a field controller (11) for focusing multi electron beams into one point of a screen is caved in the shielding cup (32) with T shape. A part of the bottom unit (T') is connected to the open terminal plunger (9) of a fourth grid electrode (4).
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