Color picture tube having an improved electron gun

Details Color picture tube having an improved electron gun Color picture tube having an improved electron gun

H - Electricity

01

J

313/35.124

H01J 29/70 (2006.01)

Patent

CA 1128599

RCA 72,714 COLOR PICTURE TUBE HAVING AN IMPROVED ELECTRON GUN Abstract An inline electron gun includes means for weakening the effect of a portion of the horizontal magnetic deflection field on the center electron beam and for strengthening the effect of a portion of the vertical magnetic deflection field on the center electron beam. The means includes magnetic shield members completely surrounding the paths of the outer beams. Each of the members has a portion crossing the plane of the co-planar electron beam paths that is closer to the center beam path than to the outer beam paths. In a preferred embodiment, large shunts surrounding the outer beams are offset eccentrically toward the center beam relative to the outer beams.

321117

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