GB469897A - Improvements in or relating to cathode ray tubes - Google Patents

Improvements in or relating to cathode ray tubes

Info

Publication number
GB469897A
GB469897A GB3270/36A GB327036A GB469897A GB 469897 A GB469897 A GB 469897A GB 3270/36 A GB3270/36 A GB 3270/36A GB 327036 A GB327036 A GB 327036A GB 469897 A GB469897 A GB 469897A
Authority
GB
United Kingdom
Prior art keywords
ray tubes
cathode
apertures
relating
cathode ray
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
GB3270/36A
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.)
Marconis Wireless Telegraph Co Ltd
BAE Systems Electronics Ltd
Original Assignee
Marconis Wireless Telegraph Co Ltd
Marconi Co 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
Priority to US2172738D priority Critical patent/US2172738A/en
Application filed by Marconis Wireless Telegraph Co Ltd, Marconi Co Ltd filed Critical Marconis Wireless Telegraph Co Ltd
Priority to GB3270/36A priority patent/GB469897A/en
Publication of GB469897A publication Critical patent/GB469897A/en
Expired legal-status Critical Current

Links

Classifications

    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01J—ELECTRIC DISCHARGE TUBES OR DISCHARGE LAMPS
    • H01J43/00—Secondary-emission tubes; Electron-multiplier tubes
    • H01J43/04—Electron multipliers
    • H01J43/06—Electrode arrangements
    • H01J43/18—Electrode arrangements using essentially more than one dynode
    • H01J43/22—Dynodes consisting of electron-permeable material, e.g. foil, grid, tube, venetian blind
    • 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

Landscapes

  • Vessels, Lead-In Wires, Accessory Apparatuses For Cathode-Ray Tubes (AREA)
  • Electrodes For Cathode-Ray Tubes (AREA)

Abstract

469,897. Cathode-ray tubes. MARCONI'S WIRELESS TELEGRAPH CO., Ltd., and LEVIN, N. Feb. 3, 1936, No. 3270. [Class 39 (i)] A tube comprises a plurality of apertured electrodes, and focusing means directing the electron stream on to the walls of these apertures, which are adapted to emit secondary electrons. In a television receiver tube, as shown, the beam falls upon the internal caesium-coated walls of successive apertured discs 3, 4, 5, focusing coils 5, 7 being provided. The apertures may be cylindrical, with flared countersunk ends on the face away from the cathode 1. Typical voltages and dimensions are given.
GB3270/36A 1936-02-03 1936-02-03 Improvements in or relating to cathode ray tubes Expired GB469897A (en)

Priority Applications (2)

Application Number Priority Date Filing Date Title
US2172738D US2172738A (en) 1936-02-03 Cathode ray tube
GB3270/36A GB469897A (en) 1936-02-03 1936-02-03 Improvements in or relating to cathode ray tubes

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
GB3270/36A GB469897A (en) 1936-02-03 1936-02-03 Improvements in or relating to cathode ray tubes

Publications (1)

Publication Number Publication Date
GB469897A true GB469897A (en) 1937-08-03

Family

ID=9755155

Family Applications (1)

Application Number Title Priority Date Filing Date
GB3270/36A Expired GB469897A (en) 1936-02-03 1936-02-03 Improvements in or relating to cathode ray tubes

Country Status (2)

Country Link
US (1) US2172738A (en)
GB (1) GB469897A (en)

Families Citing this family (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2458223A (en) * 1939-07-03 1949-01-04 Albert G Thomas Electronic tube
FR959708A (en) * 1941-07-28 1950-04-04
US2604606A (en) * 1949-10-15 1952-07-22 Rca Corp Target for storage tubes
US2988668A (en) * 1954-10-05 1961-06-13 Burroughs Corp High speed memory
GB1090406A (en) * 1963-08-19 1967-11-08 Mullard Ltd Improvements in or relating to image intensifiers and the like
FR2445018A1 (en) * 1978-12-22 1980-07-18 Anvar ELECTRON MULTIPLIER TUBE WITH AXIAL MAGNETIC FIELD

Also Published As

Publication number Publication date
US2172738A (en) 1939-09-12

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