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:
Jan. 01, 1980
Filed:
Dec. 16, 1977
Robert A Gange, Belle Mead, NJ (US);
RCA Corporation, New York, NY (US);
Abstract
The envelope of an image display device has front and rear walls spaced from one another with a cathodoluminescent screen on the front wall. Within the envelope are a plurality of electron beam guides parallel to the rear wall and a source of electrons at one end of the beam guide. Each beam guide has at least one electrode adjacent to and parallel to the rear wall. A plurality of spaced parallel wires arranged in a common plane are between the electrode and the front wall. An electrically conductive mesh is parallel to the plane of wires between the plane and the front wall. The mesh has a plurality of closely spaced apertures which are not greater than 26 microns wide in one dimension.