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:
Jun. 25, 1996
Filed:
Jun. 30, 1994
Nozomu Arimoto, Takatsuki, JP;
Hirokazu Nagadori, Amagasaki, JP;
Matsushita Electronics Corporation, Osaka, JP;
Abstract
A pair of magnetic members are provided on an outer surface of a neck tube in a horizontal plane including three electron beams generated from an in-line type electron gun so as to sandwich the three electron beams. The in-line electron gun is enclosed in the thin cylindrical neck tube extending to the rear portion of a funnel glass. The magnetic members are disposed in an axis direction of the electron gun so that at least parts thereof face each other. Providing the magnetic members in this way suppresses the occurrence of the Lorentz force due to the interaction between the two outermost electron beams among the three electron beams and the external magnetic field in the axis direction of the electron gun. Therefore, misconvergence of the electron beams caused by the Lorentz force is prevented.