Color picture tube with correction magnet outside its neck

Details Color picture tube with correction magnet outside its neck Color picture tube with correction magnet outside its neck

H - Electricity

01

J

313/35.1202

H01J 29/76 (2006.01) H01J 29/70 (2006.01) H01J 29/82 (2006.01)

Patent

CA 1139820

PHN. 9613 11 ABSTRACT: "Device for displaying coloured pictures". If in a device for displaying coloured pictures comprising a colour display tube of the "in-line" type, which comprises magnetized means for maintaining a static magnetic multipole field near the output of the electron gun system for carrying out static beam corrections, a correction magnet is provided outside the neck near the output of the electron gun system and near at least one outermost electron beam, which magnet forms a magnetic dipole and is intersected by the said plane and which correction magnet is small with respect to its distance to said electron beam, it is possible afterwards to provide small corrections in the horizontal static convergence.

362030

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