Grid having reduced secondary emission characteristics and elect

Details Grid having reduced secondary emission characteristics and elect Grid having reduced secondary emission characteristics and elect

1976-11-26

1978-03-14

Segal, Robert

Electric lamp and discharge devices

Cathode ray tube

Image pickup tube

313458, 13106, H01J 3138, H01J 2902

Patent

active

040792862

ABSTRACT:
A nickel oxide surface layer of a nickel mesh supporting structure is coated with a layer of chromium. The nickel oxide layer has a thickness of between about 500 to 750A. The layer chromium is at least about 100A thick. The chromium coated nickel oxide-nickel mesh is particularly suitable for use in vidicon tubes.

REFERENCES:
patent: 2212827 (1940-08-01), Etzrodt
patent: 3073981 (1963-01-01), Miller et al.
patent: 3136916 (1964-06-01), Schaefer

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