Vidicon tube deflection coil construction - has horizontal and vertical deflection coils at right angles, with diagonal transition zone forming variable cross=section thickness

摘要

The deflecton system for an electron beam tube such as a vidicon for a T.V. camera, has a conductive tube (1) with two pairs of cylindrical horizontal and vertical deflection coils (2, 3) at right angles to each other. The vertical deflection coils (3) have a transition zone (6) with longitudinal parts (4) and end parts (5) at limiting surfaces (7). Each transition zone includes a diagonal region forming a cross section of variable thickness, which increases to a maximum for one part, while the other part decreases to a minimum.