Image pick-up tube target

Details Image pick-up tube target Image pick-up tube target

1987-07-09

1989-03-28

DeMeo, Palmer C.

Electric lamp and discharge devices

Cathode ray tube

Image pickup tube

313386, H01J 3138

Patent

active

048167150

ABSTRACT:
There is disclosed an image pick-up tube target comprising an N-type conductive film formed on a transparent substrate, and a P-type photoconductive film in rectifying contact with the N-type conductive film and comprising a first layer containing As and Se, the average concentration of As in the first layer being below 8% by weight, a second layer containing As and Se, a third layer containing As and Se, the concentration of As being in the range of 8 to 20% by weight and thickness of the third layer being in the range of 5 to 50% of the total thickness of the P-type photoconductive film, in the order named, and a beam landing layer.

REFERENCES:
patent: 4307319 (1981-12-01), Terao et al.
patent: 4463279 (1984-07-01), Shidara et al.
patent: 4563611 (1986-01-01), Nonaka et al.
patent: 4587456 (1986-05-01), Inoue et al.

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