Magnetic lenses in shadow mask of post deflection cathode...

Details Magnetic lenses in shadow mask of post deflection cathode... Magnetic lenses in shadow mask of post deflection cathode...

H - Electricity

01

J

313/35.13

H01J 29/64 (2006.01) H01J 29/68 (2006.01) H01J 29/81 (2006.01)

Patent

CA 1067559

ABSTRACT: A cathode ray tube for displaying coloured pictures of the post focusing type. A magnetic quad- rupole lens is formed in each aperture of the colour selection means. The defocusing direction of quadrupole lenses is parallel to the phosphor strips of the display screen.

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