Television camera tube with honeycomb grid electrode

Details Television camera tube with honeycomb grid electrode Television camera tube with honeycomb grid electrode

1986-01-13

1987-08-04

Rubinson, Gene Z.

Facsimile and static presentation processing

Facsimile

Recording apparatus

313348, 313390, H01J 2902, H01J 2906

Patent

active

046849947

ABSTRACT:
A television camera tube comprising in an evacuated envelope, an electron gun for generating at least one electron beam. The electron beam is focused onto a target, and is deflected over the target. A grid electrode having hexagonal apertures is provided in front of the target.
The apertures in the grid electrode are arranged in a honeycomb structure. Each aperture has the form of an equilateral hexagon having angles of 120.degree.. As a result, the susceptibility to Moire effects is reduced, the microphonic properties are improved, and the mesh obtained has a high transmissivity while it can more readily be tensioned and is easier to handle.

REFERENCES:
patent: 2247138 (1941-06-01), Sukumlyn
patent: 3107313 (1963-10-01), Hechtel
patent: 3109116 (1963-10-01), Epstein et al.
patent: 3109117 (1963-10-01), Kaplan
patent: 3240987 (1966-03-01), Hicks, Jr.
patent: 3358175 (1967-12-01), Morrell et al.
patent: 4120002 (1978-10-01), Lieber
patent: 4607190 (1986-08-01), Himmelbauer

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