COLOR CATHODE RAY TUBE

In an electron gun assembly for a cathode ray tube, the center and side electron beams (3A, 3B, 3C) emitted from cathodes (9A, 9B, 9C) are incident on a main elec­tric lens (21). The center and side electron beams (3A, 3B, 3C) are focused, respectively. The side beams (3A, 3C) are over-converged and...

Full description

Saved in:
Bibliographic Details
Main Author KAMOHARA, EIJI
Format Patent
LanguageEnglish
Published 26.10.1988
Edition4
Subjects
BASIC ELECTRIC ELEMENTS
ELECTRIC DISCHARGE TUBES OR DISCHARGE LAMPS
ELECTRICITY
Online AccessGet full text

Cover

More Information
Summary:In an electron gun assembly for a cathode ray tube, the center and side electron beams (3A, 3B, 3C) emitted from cathodes (9A, 9B, 9C) are incident on a main elec­tric lens (21). The center and side electron beams (3A, 3B, 3C) are focused, respectively. The side beams (3A, 3C) are over-converged and directed to an over-converged point by the main electric lens (21). The side beams (3A, 3C) emerged from the main electric lens (21) are deflected and corrected by a divergent lens (23) so that the center and side beams are converged on a proper converged point between the screen (30) and the over-­converged point (P).
Bibliography:Application Number: EP19870103780