ELECTRON BEAM ADJUSTING DEVICE

摘要

PROBLEM TO BE SOLVED: To provide an electron beam adjusting device which can enhance the degrees of freedom for mounting in the axial direction of a CRT neck part, so as to facilitate miniaturization and thinning. SOLUTION: A resin-made support body to be used in this device is provided with two or more engaging walls 11, wherein a thickness (b) of a part other than an engaging claw 13 is 35%-75% of a thickness (g) of a regulating wall 12, and the height of the engaging claw 13 in a diametrical direction is three times or large than this thickness (b). An axial direction width (a) of the engaging claw 13 is 1.5 mm or less, and an outer surface partαof the engaging claw 13 to be positioned at the height corresponding to the inner diameter of the ring-shaped magnet 1 is positioned more to the outside along the axial direction than an outer surface partβof the regulating wall 12 to be positioned at the height corresponding to the inner diameter of the ring-shaped magnet 1.