GB485412A - Improvements in or relating to television receivers - Google Patents

Improvements in or relating to television receivers

Info

Publication number
GB485412A
GB485412A GB8292/37A GB829237A GB485412A GB 485412 A GB485412 A GB 485412A GB 8292/37 A GB8292/37 A GB 8292/37A GB 829237 A GB829237 A GB 829237A GB 485412 A GB485412 A GB 485412A
Authority
GB
United Kingdom
Prior art keywords
cathode
multiplier
ray tube
electron
electron multiplier
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
GB8292/37A
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 GB485412A publication Critical patent/GB485412A/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
    • H01J29/023—Electrodes; Screens; Mounting, supporting, spacing or insulating thereof secondary-electron emitting electrode arrangements
    • 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
    • H01J29/46—Arrangements of electrodes and associated parts for generating or controlling the ray or beam, e.g. electron-optical arrangement
    • H01J29/48—Electron guns
    • H01J29/482—Electron guns using electron multiplication
    • 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
    • H01J31/10—Image or pattern display tubes, i.e. having electrical input and optical output; Flying-spot tubes for scanning purposes
    • H01J31/12—Image or pattern display tubes, i.e. having electrical input and optical output; Flying-spot tubes for scanning purposes with luminescent screen

Landscapes

  • X-Ray Techniques (AREA)
  • Transforming Electric Information Into Light Information (AREA)
  • Image-Pickup Tubes, Image-Amplification Tubes, And Storage Tubes (AREA)

Abstract

485,412. Television ; valve circuits; electron multipliers ; cathode-ray tubes. COMPAGNIE POUR LA FABRICATION DES COMPTEURS ET MATERIEL D'USINES A GAZ. March 20, 1937, No. 8292. Convention date, May 23, 1936. [A Specification was laid open to inspection under Sect. 91 of the Acts, Sept. 22, 1937.] [Classes 39 (i), 40 (iii), and 40 (v)] A cathode-ray tube and a multi-stage electron multiplier tube are combined in a single envelope, and comprise a photo-electric cathode, signal control grid G, and multiplying electrodes M, feeding a spherical electrode C<1> forming the final anode of the multiplier and the secondaryemissive cathode of the cathode-ray tube. The time-base circuit B is controlled by synchronizing signals derived from the penultimate multiplier electrode which is divided to form a condenser m, m<1>. The frequency of incoming signals may be changed before amplification in the electron multiplier. A common high voltage source is provided. The Specification as open to inspection under Sect. 91 comprises also an arrangement of separate electron multiplier and cathode-ray tube fed from a common H.T. source which may also supply a further multiplier for the sound signals. This subject-matter does not appear in the Specification as accepted.
GB8292/37A 1936-03-21 1937-03-20 Improvements in or relating to television receivers Expired GB485412A (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
FR2181720X 1936-03-21
FR48009T 1936-05-23

Publications (1)

Publication Number Publication Date
GB485412A true GB485412A (en) 1938-05-19

Family

ID=32071145

Family Applications (1)

Application Number Title Priority Date Filing Date
GB8292/37A Expired GB485412A (en) 1936-03-21 1937-03-20 Improvements in or relating to television receivers

Country Status (5)

Country Link
US (1) US2181720A (en)
DE (1) DE767499C (en)
FR (1) FR48009E (en)
GB (1) GB485412A (en)
NL (1) NL50478C (en)

Families Citing this family (10)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2417805A (en) * 1941-04-30 1947-03-25 Int Standard Electric Corp Electric oscillation generator and amplifier
US2434439A (en) * 1945-02-15 1948-01-13 Farnsworth Res Corp Oscilloscope amplifier
US2530275A (en) * 1946-03-16 1950-11-14 Weingarten Joseph Cathode-ray tube image control
US2457530A (en) * 1946-08-06 1948-12-28 Gulf Research Development Co Electron gun for mass spectrometers
US2617948A (en) * 1948-11-18 1952-11-11 Heinz E Kallmann Electron multiplying device
US2777948A (en) * 1951-06-14 1957-01-15 Farnsworth Res Corp Blanking circuit for electron multiplier
US2821643A (en) * 1954-06-21 1958-01-28 George A Morton Light sensitive storage tube and system
US2867687A (en) * 1954-09-15 1959-01-06 Gen Electric Cathode ray reproduction tube having auxiliary function of synchronizing signal separation
US3205397A (en) * 1961-02-27 1965-09-07 Fairchild Camera Instr Co Combined traveling wave and cathode ray oscilloscope tube
US3852634A (en) * 1972-02-17 1974-12-03 L Sullos Switch device for point selector electrodes in flat television screens

Family Cites Families (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE349838C (en) * 1919-11-28 1922-03-10 Franz Skaupy Dr Braun tube with glow cathode, especially for the purpose of electrical image transmission
DE581499C (en) * 1924-08-29 1934-09-29 Apollinar Zeitlin Braun tubes for telegraphy and television purposes
US1748386A (en) * 1925-10-21 1930-02-25 Rca Corp Electric discharge tube
DE587113C (en) * 1925-10-22 1933-10-30 Siegmund Loewe Dr Cathode for discharge tubes
US1903569A (en) * 1926-09-15 1933-04-11 Kenneth W Jarvis Electron tube
CH158401A (en) * 1930-09-25 1932-11-15 Rca Corp Method and device for receiving telegraphically transmitted images by means of a cathode ray tube.
FR743061A (en) * 1932-03-30 1933-03-23

Also Published As

Publication number Publication date
DE767499C (en) 1952-09-15
FR48009E (en) 1937-10-16
NL50478C (en)
US2181720A (en) 1939-11-28

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