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. 26, 1987
Filed:
Feb. 24, 1986
Applicant:
Inventor:
Antonius H Peels, Eindhoven, NL;
Assignee:
U.S. Philips Corporation, New York, NY (US);
Attorney:
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
H01J / ;
U.S. Cl.
CPC ...
313414 ; 313449 ;
Abstract
A color display tube has an electron gun system (5) with focusing lens electrodes (25, 26) producing overlapping lens fields. Correction of the overlapping lens fields is accomplished by means of at least one field correction plate (35, 36) which extends substantially perpendicularly to the beam axes and has elongate and/or square apertures (38, 39, 40) through which the electron beams pass.