Cathode-ray tube with non-rotationally symmetrical electron...

Details Cathode-ray tube with non-rotationally symmetrical electron... Cathode-ray tube with non-rotationally symmetrical electron...

H - Electricity

01

J

313/35.323

H01J 29/56 (2006.01) H01J 29/48 (2006.01) H01J 29/58 (2006.01) H01J 29/62 (2006.01)

Patent

CA 1112284

PHN 8960 ABSTRACT: By making the first grid of an electron gun for a cathode-ray tube to extend in the manner of a funnel in such manner that on the side of the second grid the aperture is elongate and mainly a quadrupole lens action is obtained, it is possible to obtain in the corners and at the edge of the display screen a spot which is surrounded by considerably less haze than the known construction having an elongate aperture in the first grid. -11-

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