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:
May. 11, 1976
Filed:
Mar. 14, 1975
Werner Veith, Munich, DT;
Siemens Aktiengesellschaft, Berlin & Munich, DT;
Abstract
A luminous discharge device having a gas filled, gas tight envelope. A cathode is disposed at one side interiorly of the envelope and a luminescent target is disposed at the opposite side of the envelope. An insulating substrate is perforated in the form of a matrix and is positioned intermediate of the cathode and the luminescent target. The insulating plate has a series of rows of anodes disposed on one side thereof and a series of columns of controlled electrodes arranged at the other side thereof in a direction which is generally perpendicular to the anodes. The spacing between the anodes and the cathode is of such a value as to induce a normal gas discharge therebetween while the spacing between the controlled electrodes and the luminescent target is arranged to be such as to prevent a normal gas discharge. By applying a suitable signal to develop a gas discharge adjacent to a given row of anodes and simultaneously applying a selected positive voltage to at least one of the control electrode columns, an electron flow can be induced through a specific one of the holes in the matrix to impinge upon a predetermined spot on the luminous target and thereby produce a video response.