Television camera tube having channeled photosensitive target sp

Details Television camera tube having channeled photosensitive target sp Television camera tube having channeled photosensitive target sp

1975-09-10

1977-05-24

Segal, Robert

Electric lamp and discharge devices

Cathode ray tube

Image pickup tube

313386, 313395, 313105CM, H01J 2945, H01J 3144, H01J 3140

Patent

active

040258149

ABSTRACT:
A television camera tube having a discrete structure of photosensitive elements provided on an electrically conductive carrier covered entirely with photoconductive material or another resistance material, so that with a suitable potential applied to the carrier a potential distribution occurs having successive saddle points for the scanning beam. Variation and exposure of the discrete photoconductive elements then results in a variation in beam splitting in the saddle points, as a result of which the tube has a greater or smaller extent of natural amplification.

REFERENCES:
patent: 2572497 (1951-10-01), Law
patent: 2787724 (1957-04-01), Webley
patent: 2820167 (1958-01-01), Schroeder
patent: 3649866 (1972-03-01), Salgo

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