Patent · US Expired

Flat picture-reproducing device

US4794306A · kind A · utility

5Cited by

6References

10Claims

0Family size

Assignee

Standard Elektrik Lorenz AG · DE

Inventors

Kurt M. Tischer · Wissen, DE
Harald Rose · Darmstadt, DE
Rainer Spehr · Ober-Ramstadt, DE
Gerald Schonecker · Munich, DE

Key dates

Filing date	Nov 20, 1986
Grant date	Dec 27, 1988
Priority date	—
Expiry date	Nov 20, 2006

Classification

Technology area (CPC H)Electricity
CPC primaryH01J31/126
WIPO fieldElectrical machinery, apparatus, energy
WIPO sectorElectrical engineering

Abstract

In a flat picture-reproducing device having a phosphor-coated faceplate (1) and a tray-shaped rear housing (2), a cathode formed by a periodic array of heating wires (7) is provided. This heating-wire array is followed by layers of focusing wires (8) and attracting wires (9) and by a perforated anode (5). A segmented counterelectrode (6) is located behind the heating wires (7).

Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.