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. 18, 1995
Filed:
Oct. 27, 1993
Applicant:
Inventors:
Theodoor C Hens, Eindhoven, NL;
Jean Winters, Eindhoven, NL;
Adrianus J Van Mensvoort, Eindhoven, NL;
Assignee:
U.S. Philips Corporation, New York, NY (US);
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
H01J / ;
U.S. Cl.
CPC ...
313402 ; 313407 ;
Abstract
A color cathode ray tube comprises a color selection electrode which is secured to a frame and a magnetic screening cap. The frame has two diaphragm portions one of which is located near the color selection electrode and the other is further removed from the color selection electrode. The distance between the electron beams deflected towards the outermost apertures of the color selection electrode and the further removed diaphragm is at least 1 cm. By virtue thereof, the negative influence of the frame on the screening effect of the magnetic screening cap is substantially reduced.