A new electron gun for M46 100 deg flat super-high deflection sensitivity color display tube

摘要

Toshiba has developed the M46 100 deg FLAT CDT (Color Display Tube) with high deflection sensitivity utilizing the RAC-DY (Rectangular Cone Deflection Yoke) system and mini-neck ( PI 22.5) system. In order to solve the disadvantage in it's focus characteristics, a new electron gun has been developed with a new main lens system. The new main lens system simultaneously reduces the lens magnification and emphasizes the astigmatism compensation in the periphery on the screen. As a result, we have achieved a higher resolution than before over the entire screen.