Importance

Loading Importance Indicators...

Abstract

A color picture tube, includes an envelope having a faceplate panel and a tubular neck interconnected by a funnel. A three-color phosphor screen is formed on the interior surface of the faceplate and a multi-apertured color selection electrode is spaced from the screen. An electron gun is disposed within the neck of the tube. The electron gun includes three cathodes and a plurality of spaced-apart electrodes, having substantially aligned apertures therethrough, for generating and directing three electron beams along paths toward the screen. Each of the electrodes is secured to a plurality of longitudinally extending insulative support rods by at least two oppositely disposed, integral attachment elements, each having a distal end, a proximal end and an appendage portion therebetween. The distal end of each attachment elements includes a bifurcated portion including spaced-apart grasping members to facilitate attachment to the support rods. The distal end of each of the attachment elements of at least one electrode of the electron gun is improved over prior similar structures by being torsionally aligned at an acute angle relative to the longitudinally extending support rods. The grasping members of the distal end are symmetrically disposed with respect to the appendage portion to minimize the bending moment of the one electrode so as to reduce spacing variations and to substantially maintain aperture alignment between the one electrode and the adjacent electrodes.

Loading the Abstract Image...

First Claim