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:
Jul. 28, 1981
Filed:
Jun. 25, 1979
Applicant:
Inventor:
Benjamin Abeles, Princeton, NJ (US);
Assignee:
RCA Corporation, New York, NY (US);
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
H01J / ;
U.S. Cl.
CPC ...
313444 ; 313414 ; 313450 ; 29 2513 ;
Abstract
An electron gun includes two electrodes between which a resistive lens structure is mounted. The lens structure comprises a stack of alternate apertured electrode plates and insulator spacer blocks. A high resistance coating of, e.g., cermet or glaze material, is precoated along one side of each spacer block prior to assembly of the stack, so that upon assembly the stack has a high resistance electrical continuity from one end to the other.