Development of a NEXT Electron Gun for 46cm 100° Narrow Neck Color Display Tubes

摘要

NEXT (Narrow elliptical aperture technology with EXTended lens) electron gun, having auxiliary electrode at main lens with intermediate voltage applied through resistor, is developed for 46cm 100° deflection angle narrow neck (24.3mm diameter) color display tubes. Effective lens diameter is 8.1mm, almost identical to that of large neck tubes.