HIGH DEFINITION COLOUR TELEVISION TUBE FABRICATION PROCESS AND HIGH DEFINITION TRICHROMATIC TELEVISION TUBE

摘要

The present invention relates to a method for manufacturing a color television tube. It also relates to a screen for a three-color television tube. It finds application for the reception of high definition television broadcasts. According to the invention, the tiles intended for a high definition television tube screen are elements of the family of surfaces defined by: (C (i) .xj (i) .yk (i) Ci = Co (i) .f- (j (i) + k (i) -1)) 100.ABS (z1-z) 5.zd where z is the dimension of a surface of the family, z1 that of a surface of test and zd that of the maximum value of the surface dimension. C0 corresponds to a reference surface of the family. FIGURE 2