METHOD FOR FORMING DAG OF FUNNEL NECK TUBE FOR CATHODE-RAY TUBE

METHOD FOR FORMING DAG OF FUNNEL NECK TUBE FOR CATHODE-RAY TUBE

PURPOSE:To provide a method for forming the dag of a funnel neck tube for a cathode-ray tube, which enables the withstand voltage strength near the end of the dag to be enhanced. CONSTITUTION:A dag material is applied to the inside wall surface of the neck glass 12 of a funnel neck tube for a cathod...

Ausführliche Beschreibung

Gespeichert in:
Bibliographische Detailangaben
Hauptverfasser: WAKAGI JUNZO, YOSHIKAWA KOICHIRO
Format: Patent
Sprache:eng
Schlagworte:
BASIC ELECTRIC ELEMENTS
ELECTRIC DISCHARGE TUBES OR DISCHARGE LAMPS
ELECTRICITY
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Beschreibung
Zusammenfassung:PURPOSE:To provide a method for forming the dag of a funnel neck tube for a cathode-ray tube, which enables the withstand voltage strength near the end of the dag to be enhanced. CONSTITUTION:A dag material is applied to the inside wall surface of the neck glass 12 of a funnel neck tube for a cathode-ray tube. The same dag material is applied again to the surface with the neck side end portion A of the previously applied dag material 11a being exposed, and is then dried to form a dag 11.