method of attaching coma correction members to an inline electro

Details method of attaching coma correction members to an inline electro method of attaching coma correction members to an inline electro

1988-10-11

1990-03-27

Ramsey, Kenneth J.

Electric lamp or space discharge component or device manufacturi

Process

With assembly or disassembly

228159, H01J 918, H01J 946

Patent

active

049116681

ABSTRACT:
The present invention provides an improvement in a color picture tube having an inline electron gun with coma correction members therein. The gun includes at least two electrodes that form a main focusing lens and a shield cup interconnected to one of the main focus electrodes. The improvement comprises the coma correction members being attached to the outside surface of the shield cup facing the main focusing lens electrodes. In a method of attaching the coma correction members to the shield cup, the members are provided as one of a plurality of sets of members in a continuous strip. One set of members are placed against the outside surface of the bottom of the cup and welded thereto. Portions of the strip that are not part of the welded members are broken-away from the welded members.

REFERENCES:
patent: 4556819 (1985-12-01), Chen et al.
patent: 4593226 (1986-06-01), Naiki
patent: 4633130 (1986-12-01), McCandless
patent: 4754189 (1988-06-01), Sluyterman

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