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. 15, 1997
Filed:
May. 01, 1995
Richard M Gorski, Arlington Heights, IL (US);
Kenneth A Guzowski, Hoffman Estates, IL (US);
Zenith Electronics Corporation, Glenview, IL (US);
Abstract
A cathode ray tube electron gun (11) especially Well suited for projection-type cathode ray tubes is disclosed as having a main lens system where the upper end of the first accelerating electrode (21) fits through and within the lower end of the focus electrode (23) and the upper end of the focus electrode fits through and within the lower end of the second accelerating electrode (25). This construction and arrangement of the electrodes provides for larger apparent aperture(s) in both the decelerating lens gap and the accelerating lens gap or the main lens system which reduces spherical aberration to achieve a small spot size while providing increased grid separation for improved high voltage stability and an easily constructed gun.