H - Electricity – 01 – J
Patent
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-
315432
Bijma Jan
Linssen Henricus W.m.
N.v. Philips Gloeilampenfabrieken
Van Steinburg C.e.
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