GB475995A - Improvements in or relating to picture transmitting devices for television purposes - Google Patents

Improvements in or relating to picture transmitting devices for television purposes

Info

Publication number
GB475995A
GB475995A GB35862/36A GB3586236A GB475995A GB 475995 A GB475995 A GB 475995A GB 35862/36 A GB35862/36 A GB 35862/36A GB 3586236 A GB3586236 A GB 3586236A GB 475995 A GB475995 A GB 475995A
Authority
GB
United Kingdom
Prior art keywords
cathodes
electrons
image
diaphragm
cathode
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
GB35862/36A
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.)
Zeiss Ikon AG
Original Assignee
Zeiss Ikon AG
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 Zeiss Ikon AG filed Critical Zeiss Ikon AG
Publication of GB475995A publication Critical patent/GB475995A/en
Expired legal-status Critical Current

Links

Classifications

    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01J—ELECTRIC DISCHARGE TUBES OR DISCHARGE LAMPS
    • H01J31/00—Cathode ray tubes; Electron beam tubes
    • H01J31/08—Cathode ray tubes; Electron beam tubes having a screen on or from which an image or pattern is formed, picked up, converted, or stored
    • H01J31/26—Image pick-up tubes having an input of visible light and electric output
    • H01J31/42—Image pick-up tubes having an input of visible light and electric output with image screen generating a composite electron beam which is deflected as a whole past a stationary probe to simulate a scanning effect, e.g. Farnsworth pick-up tube
    • H01J31/44—Tubes with image amplification section

Landscapes

  • Image-Pickup Tubes, Image-Amplification Tubes, And Storage Tubes (AREA)

Abstract

475,995. Image dissectors. ZEISS IKON AKT.-GES. Dec. 31, 1936, No. 35862. Convention date, March 24. [Class 39 (i)] Electrons emanating from the aperture 3 of the diaphragm 2 of an image dissector are multiplied by secondary emission at successive cathodes 4 .. 6 before collection at an output electrode 10. The electrons from the cathodes 4 .. 6 may be given curved paths as shown by a transverse magnetic field or successive cathodes may be opposed, Fig. 2 (not shown), the. common enclosing envelope A being then cylindrical with the aperture 3 eccentric in the diaphragm 2. The cathodes 4 .. 6 may be photo-electric and the electrode 10 may be replaced by an ionization chamber giving an output current depending on the number of the electrons received. The cathode 1 of the dissector is a thin caesium-silver oxide layer on glass coated with metal. The electrodes 1 .. are joined by a resistance layer on the envelope A surrounding the space in which the electron image from the cathode 1 is deflected.
GB35862/36A 1936-03-24 1936-12-31 Improvements in or relating to picture transmitting devices for television purposes Expired GB475995A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DE475995X 1936-03-24

Publications (1)

Publication Number Publication Date
GB475995A true GB475995A (en) 1937-11-30

Family

ID=6541933

Family Applications (1)

Application Number Title Priority Date Filing Date
GB35862/36A Expired GB475995A (en) 1936-03-24 1936-12-31 Improvements in or relating to picture transmitting devices for television purposes

Country Status (1)

Country Link
GB (1) GB475995A (en)

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