Television camera tube with conductive or secondary emissive reg

Details Television camera tube with conductive or secondary emissive reg Television camera tube with conductive or secondary emissive reg

1977-04-08

1980-04-01

Segal, Robert

Electric lamp and discharge devices

Cathode ray tube

Image pickup tube

313384, H01J 2962, H01J 3138

Patent

active

041963695

ABSTRACT:
In order to avoid picture disturbances by electric charging phenomena on the tube wall in a camera tube in which no target material is present on the inner wall of the cylinder tube, the tube wall is provided with a surface potential stabilizing material between the window connection and the mesh electrode of the camera tube. This stabilization can be realized by way of a local cover layer having the desired electric conductivity or secondary emission properties, or by locally adapting properties of the glass of the tube wall thereto.

REFERENCES:
patent: 3047758 (1962-07-01), Rome et al.
patent: 3300669 (1967-01-01), Jordan
patent: 3376446 (1968-04-01), De Haan et al.
patent: 3569763 (1971-03-01), Kiuchi et al.
patent: 3801855 (1974-04-01), Gerlach
patent: 3857037 (1974-12-01), Tomii et al.
patent: 4079286 (1978-03-01), Popp

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