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:
May. 15, 1984
Filed:
Feb. 10, 1982
Applicant:
Inventors:
Naim Z Assil, Lancaster, PA (US);
Richard H Hughes, Lancaster, PA (US);
Assignee:
RCA Corporation, New York, NY (US);
Attorneys:
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
H01J / ;
U.S. Cl.
CPC ...
313412 ; 313414 ;
Abstract
An inline electron gun in a color picture tube is improved by the addition of two slot apertures that are spaced sufficiently close to and outward from the two outer apertures in a portion of a focusing electrode facing a screen grid electrode to cause a distortion of the electrostatic field formed between the two electrodes at the two outer apertures. The electrostatic field distortion causes two outer electron beams to converge toward a center electron beam.