Method of mounting a deflection unit on a cathode ray tube envelope and combination resulting therefrom

摘要

The invention describes a method of accurately mounting a deflection unit on a cathode ray tube envelope. The deflection unit is provided with three V-shaped connecting devices and globally positioned with respect to metal mounting pads thermal compression bonded to the envelope. Three adjustable manipulators, each provided with a socket for engaging a semi-spherical part on one of the V apexes, accurately position the deflection unit on the envelope to obtain an accurate test pattern on the cathode ray tube screen. Finally the V-shaped devices are laser-welded to the mounting pads by laser devices incorporated with said manipulators.