Method of manufacturing a color display tube shadow mask

A method of manufacturing a color display tube of the refocusing type in which supports of insulation material are secured against an apertured metal plate. The supports are provided with a conductor at least on the side remote from the plate, so that the plate constitutes a first set of lens electr...

Ausführliche Beschreibung

Gespeichert in:

Bibliographische Detailangaben
Hauptverfasser:	KOORNEEF, JACOB
Format:	Patent
Sprache:	eng
Schlagworte:	BASIC ELECTRIC ELEMENTS ELECTRIC DISCHARGE TUBES OR DISCHARGE LAMPS ELECTRICITY GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS TECHNICAL SUBJECTS COVERED BY FORMER US CLASSIFICATION TECHNICAL SUBJECTS COVERED BY FORMER USPC TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
Online-Zugang:	Volltext bestellen
Tags:	Tag hinzufügen Keine Tags, Fügen Sie den ersten Tag hinzu!

Beschreibung
Zusammenfassung:	A method of manufacturing a color display tube of the refocusing type in which supports of insulation material are secured against an apertured metal plate. The supports are provided with a conductor at least on the side remote from the plate, so that the plate constitutes a first set of lens electrodes and the conductors constitute a second set of lens electrodes. The two sets of lens electrodes form a quadrupole lens in each aperture in the metal plate when a voltage difference is applied between the first set and the second set. The defocusing direction of the quadrupole lens is parallel to the phosphor strips of the display screen.