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:
Apr. 20, 1976
Filed:
Nov. 26, 1974
Applicant:
Inventor:
Willem Meijndert Van Alphen, , NL;
Assignee:
U.S. Philips Corporation, New York, NY (US);
Attorneys:
Primary Examiner:
Int. Cl.
CPC ...
H01J / ; H01J / ;
U.S. Cl.
CPC ...
315 17 ; 315382 ; 313432 ; 313449 ;
Abstract
A cathode-ray tube having electrostatic focusing and electrostatic deflection lens which comprises three cylindrical electrode arranged along a common axis. The end electrodes are supplied by a high focusing voltage and the intermediate electrode is divided into at least three segments, each being supplied by a voltage which is a linear combination of a lower focusing voltage and of two deflection voltages.