Cathode ray tube (CRT)

A Cathode Ray Tube (CRT) includes a panel having long and short axes and a tube axis perpendicular to the long and short axes, the panel including an inner phosphor screen. A funnel is attached to the panel, the funnel including a cone having a deflection unit arranged on an outer circumference ther...

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Bibliographische Detailangaben
Hauptverfasser: KIM HOO-DEUK, KIM MUN-SEONG
Format: Patent
Sprache:eng
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Beschreibung
Zusammenfassung:A Cathode Ray Tube (CRT) includes a panel having long and short axes and a tube axis perpendicular to the long and short axes, the panel including an inner phosphor screen. A funnel is attached to the panel, the funnel including a cone having a deflection unit arranged on an outer circumference thereof. A neck is attached to the funnel and has an electron gun arranged therein. The cone has a cross-section taken perpendicular to the tube axis with a shape varied from a circle to a non-circle having a maximum diameter in the directions except for the directions of the long and the short axes of the panel while proceeding from the neck to the panel, and with the cross-section of the cone on the tube axis by a point thereof, the inner and the outer surfaces of the cone in the directions of the long and the short axes are convex toward the tube axis.