Premium
42.1: A New Electron Gun for a 32″ Super Wide Deflection Angle (120°) CRT
Author(s) -
Bae Mincheol,
Song Yongseok,
Hong Younggon,
Kwon Yonggeol,
Lee Kwangsik
Publication year - 2001
Publication title -
sid symposium digest of technical papers
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.351
H-Index - 44
eISSN - 2168-0159
pISSN - 0097-966X
DOI - 10.1889/1.1831753
Subject(s) - crts , electron gun , cathode ray tube , deflection (physics) , voltage , optics , materials science , electron , focus (optics) , physics , cathode ray , optoelectronics , electrical engineering , computer science , engineering , computer graphics (images) , quantum mechanics
A new electron gun for a super wide deflection angle (SWDA) cathode ray tube (CRT) has been developed. For a SWDA the dynamic focus voltage is usually very high, lowering the dynamic focus voltage is one of the key factors to realize wide angle CRTs. We designed a new quadrupole lens for the electron gun. As a result, we were able to achieve a reasonable focus quality with low dynamic voltage that is comparable to the conventional CRTs. The new electron gun enabled SWDA CRTs possible.