Method of mounting a deflection unit on a cathode ray tube envel

Details Method of mounting a deflection unit on a cathode ray tube envel Method of mounting a deflection unit on a cathode ray tube envel

1987-11-27

1989-02-07

Ramsey, Kenneth J.

Facsimile and static presentation processing

Facsimile

Recording apparatus

445 3, 21912164, 21912182, 21912163, H01J 9236, H01J 942

Patent

active

048035599

ABSTRACT:
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.

REFERENCES:
patent: 3643299 (1972-02-01), Brown
patent: 3939447 (1976-02-01), D'Amato
patent: 4163308 (1979-08-01), Tawa et al.
patent: 4323817 (1982-04-01), Vennix

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