The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.
The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.
Patent No.:
Date of Patent:
Oct. 24, 1989
Filed:
Mar. 15, 1988
Applicant:
Inventors:
Assignee:
Kabushiki Kaisha Toshiba, Kawasaki, JP;
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
H01J / ; H01J / ;
U.S. Cl.
CPC ...
313413 ; 313414 ; 313431 ; 313440 ; 335210 ;
Abstract
In a color cathode ray tube, electron beams generated from an electron gun assembly of an in-line type are deflected by horizontal and vertical deflection magnetic fields. The horizontal deflection magnetic field includes a main magnetic field and an auxiliary magnetic field. The main magnetic field has a barrel-shaped distribution and is substantially symmetrically formed about a Y-Z plane and the auxiliary magnetic field is substantially antisymmetric about the Y-Z plane.