GB484575A - Improvements in or relating to electron discharge devices for use in television or like systems - Google Patents

Improvements in or relating to electron discharge devices for use in television or like systems

Info

Publication number
GB484575A
GB484575A GB3009936A GB3009936A GB484575A GB 484575 A GB484575 A GB 484575A GB 3009936 A GB3009936 A GB 3009936A GB 3009936 A GB3009936 A GB 3009936A GB 484575 A GB484575 A GB 484575A
Authority
GB
United Kingdom
Prior art keywords
elements
television
film
relating
systems
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
GB3009936A
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.)
DAVID MALCOLM JOHNSTONE
Baird Television Ltd
Original Assignee
DAVID MALCOLM JOHNSTONE
Baird Television Ltd
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 DAVID MALCOLM JOHNSTONE, Baird Television Ltd filed Critical DAVID MALCOLM JOHNSTONE
Priority to GB3009936A priority Critical patent/GB484575A/en
Publication of GB484575A publication Critical patent/GB484575A/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
    • H01J29/45—Charge-storage screens exhibiting internal electric effects caused by electromagnetic radiation, e.g. photoconductive screen, photodielectric screen, photovoltaic screen

Landscapes

  • Physics & Mathematics (AREA)
  • Electromagnetism (AREA)
  • Purification Treatments By Anaerobic Or Anaerobic And Aerobic Bacteria Or Animals (AREA)

Abstract

484,575. Cathode - ray tubes. BAIRD TELEVISION, Ltd., and JOHNSTONE, D. M. Nov. 5, 1936; No. 30099. [Class 39 (i)] A mosaic for deriving signals in a television set consists of a number of photo-conductive elements 13 deposited on a continuous film 12 carried by an insulating plate 11 ; the elements 13 which may be of selenium are capped by metal 14. The elements are scanned by a cathode ray and have an optical image directed on them, so that the varying conductivity of the elements due to image lighting will give the necessary signals, which are taken from a resistance connected to the film 12. The elements 13 and their metal capping may be deposited on the film through the interstices of a removable fine mesh grid.
GB3009936A 1936-11-05 1936-11-05 Improvements in or relating to electron discharge devices for use in television or like systems Expired GB484575A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
GB3009936A GB484575A (en) 1936-11-05 1936-11-05 Improvements in or relating to electron discharge devices for use in television or like systems

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
GB3009936A GB484575A (en) 1936-11-05 1936-11-05 Improvements in or relating to electron discharge devices for use in television or like systems

Publications (1)

Publication Number Publication Date
GB484575A true GB484575A (en) 1938-05-05

Family

ID=10302250

Family Applications (1)

Application Number Title Priority Date Filing Date
GB3009936A Expired GB484575A (en) 1936-11-05 1936-11-05 Improvements in or relating to electron discharge devices for use in television or like systems

Country Status (1)

Country Link
GB (1) GB484575A (en)

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