Electric lamp and discharge devices – Cathode ray tube – Image pickup tube
Patent
1975-05-23
1977-02-08
Segal, Robert
Electric lamp and discharge devices
Cathode ray tube
Image pickup tube
313 94, H01J 2945, H01J 3138
Patent
active
040073955
ABSTRACT:
In a method of manufacturing a target structure for use in a photoconductive image pickup tube when depositing a P-type photoconductive film on an N-type transparent conductive film deposited on one side of a transparent substrate which acts as an incident window of the image pickup tube, the P-type photoconductive film is made up of first and second photoconductive substances. The commencement of the deposition of the first photoconductive substance is delayed a predetermined time than that of the second photoconductive substance and the deposition of the first photoconductive substance is terminated before completion of the deposition of the second photoconductive material thereby forming a layer of the first photoconductive substance not contiguous to the junction between the N-type transparent conductive film and the P-type photoconductive film and having a predetermined thickness.
REFERENCES:
patent: 3800194 (1974-03-01), Maruyama et al.
patent: 3890524 (1975-06-01), Watanabe et al.
patent: 3890525 (1975-06-01), Hirai et al.
patent: 3922579 (1975-11-01), Goto et al.
Goto Naohiro
Nonaka Yasuhiko
Shidara Keiichi
Hitachi , Ltd.
Nippon Hoso Kyokai
Pfund Charles E.
Segal Robert
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