CATHODE RAY TUBE KNOCKING TREATMENT METHOD

CATHODE RAY TUBE KNOCKING TREATMENT METHOD

PROBLEM TO BE SOLVED: To realize an effective knocking treatment method with no generation of damage and spatter of an electrode. SOLUTION: The frequency of high voltage pulse (60kv-100kv) applied between a high voltage side electrode 1 and a low voltage side electrode 2 of a cathode ray tube CRT is...

Ausführliche Beschreibung

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Bibliographische Detailangaben
1. Verfasser: NOSE TADASHI
Format: Patent
Sprache:eng
Schlagworte:
BASIC ELECTRIC ELEMENTS
ELECTRIC DISCHARGE TUBES OR DISCHARGE LAMPS
ELECTRICITY
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Beschreibung
Zusammenfassung:PROBLEM TO BE SOLVED: To realize an effective knocking treatment method with no generation of damage and spatter of an electrode. SOLUTION: The frequency of high voltage pulse (60kv-100kv) applied between a high voltage side electrode 1 and a low voltage side electrode 2 of a cathode ray tube CRT is raised with decrease in discharge probability dependent on the proceeding of the knocking treatment. The frequency is several Hz in the initial stage of the treatment, but raised to tens to hundreds Hz in the final stage of the treatment. Average discharge energy during the knocking treatment is made uniform, and excess discharge can be avoided.