Process for aligning and centering an assembly of electron-guns

Details Process for aligning and centering an assembly of electron-guns Process for aligning and centering an assembly of electron-guns

1984-06-19

1986-08-05

Ramsey, Kenneth J.

Electric lamp or space discharge component or device manufacturi

Process

With testing or adjusting

445 64, H01J 942

Patent

active

046040714

ABSTRACT:
The present invention concerns a process and a device for aligning and centering an assembly of electron-guns on a color television tube during the manufacturing process. To do this, the image of the markings of the assembly of electron-guns is formed on analyzers, each comprising a charge-coupled photosensitive strip. The alignment is observed when the comparison signal is lower than a predetermined value. Instead of markings, the image of the sections of the assembly of guns can be used as the section comprising the grid G4 in the cup.

REFERENCES:
patent: 2154500 (1939-04-01), Elmendorf
patent: 3962764 (1976-06-01), Stewart et al.
patent: 3962765 (1976-06-01), Stachel et al.
patent: 4148117 (1979-04-01), Bracke et al.

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