发明公开
EP0111872A1 Cathode ray tube apparatus 失效
一种用于阴极射线管。

Cathode ray tube apparatus
摘要:
An in-line type cathode ray tube apparatus, is improved to obtain less aberration of beam spots by shaping the electron beam passing apertures (15a, 15b, 15c) in the control grid (11) and those in the accelerating grid (12) into horizontally oblong elliptic shapes, and providing a horizontally oblong electrode means (18) having a rectangle shape active space on the accelerating grid (12) at its down stream side of the electron beam.
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