Production of color selection mechanism for cathode-ray tube

Details Production of color selection mechanism for cathode-ray tube Production of color selection mechanism for cathode-ray tube

1986-06-23

1988-05-24

Ramsey, Kenneth J.

Electric lamp or space discharge component or device manufacturi

Process

With assembly or disassembly

H01J 900

Patent

active

047463155

ABSTRACT:
A process of producing a color selection mechanism for a cathode-ray tube which eliminates operations such as heat treatment at a high temperature for annealing and processing with levellers, to simplify production steps and resolves problems of rejects and dependability due to segregation of components involved in the stamping operation of a conventional process. A color selection electrode having a plurality of electron beam-passing openings formed therein is merely bent within the elastic limit of the material of the electrode, without causing a drawing effect, into a curved facial shape having substantially a cylindrical face as a basic facial shape thereof, and is permanently mounted in the curved condition on a frame to form a color selection mechanism.

REFERENCES:
patent: 2898494 (1959-04-01), Haas
patent: 3737703 (1973-06-01), Tsuneta et al.
patent: 3916243 (1975-10-01), Brown

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