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:
Sep. 13, 1977
Filed:
Mar. 25, 1976
Applicant:
Inventors:
George R Brewer, Malibu, CA (US);
Kurt Amboss, Pacific Palisades, CA (US);
Assignee:
Hughes Aircraft Company, Culver City, CA (US);
Attorneys:
Primary Examiner:
Int. Cl.
CPC ...
H01J / ; H01J / ;
U.S. Cl.
CPC ...
313293 ; 313348 ; 313420 ; 313441 ;
Abstract
Radial electron flow in an elongated electron gun is achieved from a unipotential, planar cathode by locating the cathode with respect to the gun axis and with respect to a cylindrical divergent anode lens so that the lens focal line lies on the gun axis. The effect of the accelerating field on the distortion of the radial flow is reduced by employing a deep anode grid to reduce the penetration of the accelerating field into the anode drift region.