Electron gun for color picture tube

Details Electron gun for color picture tube Electron gun for color picture tube

H - Electricity

01

J

313/35.14

H01J 29/48 (2006.01) H01J 29/50 (2006.01)

Patent

CA 1205510

ABSTRACT OF THE DISCLOSURE An electron gun for a color picture tube is disclosed in which three parallel electron beams emitted toward a fluorescent screen and arranged so as to define one and the same plane are focused on the fluorescent screen by a main lens, electrodes constituting the main lens are spaced apart from each other, the electrodes include at least two envelopes and electrode plates disposed at the confronting end faces of the envelopes, each of the electrode plates has a single aperture for transmitting a central one of the electron beams, the path of each outer electron beam is surrounded partly by one of end portions of each electrode plate, and at least one of the electrode plates is placed in a corresponding one of the envelopes such that the electrode plate is recessed from the end face of the corresponding envelope confronting the other envelope.

454870

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