GB715447A - Improvements in or relating to electronic pick-up tubes - Google Patents

Improvements in or relating to electronic pick-up tubes

Info

Publication number
GB715447A
GB715447A GB24958/52A GB2495852A GB715447A GB 715447 A GB715447 A GB 715447A GB 24958/52 A GB24958/52 A GB 24958/52A GB 2495852 A GB2495852 A GB 2495852A GB 715447 A GB715447 A GB 715447A
Authority
GB
United Kingdom
Prior art keywords
tubes
pick
oct
rays
mosaic
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Expired
Application number
GB24958/52A
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Compteurs Schlumberger SA
Original Assignee
Compteurs Schlumberger SA
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Compteurs Schlumberger SA filed Critical Compteurs Schlumberger SA
Publication of GB715447A publication Critical patent/GB715447A/en
Expired legal-status Critical Current

Links

Classifications

    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01J—ELECTRIC DISCHARGE TUBES OR DISCHARGE LAMPS
    • H01J29/00—Details of cathode-ray tubes or of electron-beam tubes of the types covered by group H01J31/00
    • H01J29/02—Electrodes; Screens; Mounting, supporting, spacing or insulating thereof
    • H01J29/10—Screens on or from which an image or pattern is formed, picked up, converted or stored
    • H01J29/36—Photoelectric screens; Charge-storage screens
    • H01J29/39—Charge-storage screens

Landscapes

  • Luminescent Compositions (AREA)

Abstract

715,447. Television pick-up tubes. COMPAGNIE POUR LA FABRICATION DES COMPTEURS ET MATERIEL D'USINES A GAZ. Oct. 6, 1952 [Oct. 5, 1951], No. 24958/52. Class 39(1) The target electrode of a pick-up tube comprises a thin photo-conductive layer provided on the side facing a high velocity scanning beam with a mosaic layer formed of conducting material and on the other side with a conducting signal plate. The mosaic is of magnesium, beryllium or aluminium and it is formed by slow precipitation and afterwards lightly oxidized to increase the secondary emission coefficient. The signal plate may be a continuous metal layer or a metal mesh and the photo-conductive layer is of cadmium sulphide which is responsive to visible light, X-rays and γ-rays.
GB24958/52A 1951-10-05 1952-10-06 Improvements in or relating to electronic pick-up tubes Expired GB715447A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
FR1043481T 1951-10-05

Publications (1)

Publication Number Publication Date
GB715447A true GB715447A (en) 1954-09-15

Family

ID=9590574

Family Applications (1)

Application Number Title Priority Date Filing Date
GB24958/52A Expired GB715447A (en) 1951-10-05 1952-10-06 Improvements in or relating to electronic pick-up tubes

Country Status (2)

Country Link
FR (1) FR1043481A (en)
GB (1) GB715447A (en)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3657596A (en) * 1965-05-20 1972-04-18 Westinghouse Electric Corp Electron image device having target comprising porous region adjacent conductive layer and outer, denser region
GB2132408A (en) * 1982-11-26 1984-07-04 Hitachi Ltd Image pickup tube

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3657596A (en) * 1965-05-20 1972-04-18 Westinghouse Electric Corp Electron image device having target comprising porous region adjacent conductive layer and outer, denser region
GB2132408A (en) * 1982-11-26 1984-07-04 Hitachi Ltd Image pickup tube

Also Published As

Publication number Publication date
FR1043481A (en) 1953-11-09

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