Colour display tube

Details Colour display tube Colour display tube

H - Electricity

01

J

313/35.165

H01J 29/02 (2006.01) H01J 29/07 (2006.01)

Patent

CA 1184233

ABSTRACT: A colour selection electrode is suspended in the corner of the upright edge of the display window by means of flat resilient elements connected in the corners of the colour selection electrode. The flat resilient elements are substantially perpendicular to the electron beams deflected towards the relevant corner. At the end remote from the colour selection electrode the flat resilient elements have a slot-shaped aperture which is partly covered by a plate having an aperture. Pins comprising studs are sealed in the corners of the upright edge of the display window. Each pin is perpen- dicular to the associated flat resilient element. The studs project partly through the apertures of the flat resilient elements with plates. The flat resilient elements engage the studs without pretension. The flat resilient elements are connected to the colour selection electrode so as to be substantially pivotable. As a result of this the flat resilient elements upon expan- sion of the colour selection electrode do not deflect over their full length but pivot about the end connected to the colour selection electrode. A wire spring us connected under tension between the colour selection electrode and the end of each flat resilient element remote from the colour selection electrode. The wire springs ensure that the flat resilient elements are urged on the studs so that after the occurrence of vibrations the flat resilient elements again return to their origi- nal position. Instead of an aperture in the flat resilient element and a sealed pin with a stud in the up- right edge of the display window, according to another embodiment the flat resilient element may have a stud and a supporting element having an aperture may be sealed in the corner of the upright edge of the display window.

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