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:
Dec. 06, 1977
Filed:
Jun. 24, 1976
Applicant:
Inventors:
Joseph L Hallett, Seneca Falls, NY (US);
Donald L Say, Waterloo, NY (US);
Assignee:
GTE Sylvania Incorporated, Stamford, CT (US);
Primary Examiner:
Int. Cl.
CPC ...
H01J / ; H01J / ;
U.S. Cl.
CPC ...
313414 ;
Abstract
An improvement is provided in a cathode ray tube plural beam in-line electron gun assembly having applied beam currents of differing levels. At least one of the gun structures in the assembly incorporates discrete electrode modifications or differentiations whereby the respective focusing lens is dimensionally changed to effect a focused beam landing at the screen that is of a size similar to those of the beams emanating from the related guns in the assembly.