In-line electron gun structure for colour cathode ray tubes...

Details In-line electron gun structure for colour cathode ray tubes... In-line electron gun structure for colour cathode ray tubes...

H - Electricity

01

J

313/35.13

H01J 29/48 (2006.01) H01J 29/50 (2006.01) H01J 29/58 (2006.01)

Patent

CA 1208683

-11- ABSTRACT: "In-line electron gun structure for colour cathode ray tubes having tapered and elongate apertures for beam spot-shaping". In-line electron gun structure for colour cathode ray tubes in which the final focusing and acce- lerating electrodes each employ three in-line tapered, partially overlapping apertures in facing relationship, and at least one aperture opening, preferably the central aperture of the focusing electrode, is elongated to provide electron beam spot-shaping.

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