GB656617A - Improvements relating to electron guns for cathode ray tubes - Google Patents

Improvements relating to electron guns for cathode ray tubes

Info

Publication number
GB656617A
GB656617A GB1876348A GB1876348A GB656617A GB 656617 A GB656617 A GB 656617A GB 1876348 A GB1876348 A GB 1876348A GB 1876348 A GB1876348 A GB 1876348A GB 656617 A GB656617 A GB 656617A
Authority
GB
United Kingdom
Prior art keywords
anode
cathode
ray tubes
cathode ray
improvements relating
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
GB1876348A
Inventor
Vincent Arthur Stanley
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.)
EMI Ltd
Electrical and Musical Industries Ltd
Original Assignee
EMI Ltd
Electrical and Musical Industries 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 EMI Ltd, Electrical and Musical Industries Ltd filed Critical EMI Ltd
Priority to GB1876348A priority Critical patent/GB656617A/en
Publication of GB656617A publication Critical patent/GB656617A/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
    • H01J29/46—Arrangements of electrodes and associated parts for generating or controlling the ray or beam, e.g. electron-optical arrangement
    • H01J29/48—Electron guns
    • H01J29/485—Construction of the gun or of parts thereof

Landscapes

  • Electrodes For Cathode-Ray Tubes (AREA)

Abstract

656,617. Cathode-ray tubes. ELECTRIC & MUSICAL INDUSTRIES, Ltd. July 13, 1948, No. 18763. [Class 39 (i)] An electron gun comprises a modulating electrode which consists of a film on an insulating surface facing the cathode. A metal sleeve 5 supports the tubular thermionic cathode 2 through the ceramic disc 4 and carries a lip 7 which, with the spacer ring 8, registers a ceramic or mica disc 6 on which is evaporated or sputtered the films 11, 12 forming respectively the modulating electrode and first anode; each film overlaps only its respective terminal contact 13, 14 moulded or inserted in the insulator. A retaining sleeve 9 and a second anode 15 are provided and the anode 12 may alternatively be independently supported by rods. Dimensions of the electrode 11 and insulator 6 are specified.
GB1876348A 1948-07-13 1948-07-13 Improvements relating to electron guns for cathode ray tubes Expired GB656617A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
GB1876348A GB656617A (en) 1948-07-13 1948-07-13 Improvements relating to electron guns for cathode ray tubes

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
GB1876348A GB656617A (en) 1948-07-13 1948-07-13 Improvements relating to electron guns for cathode ray tubes

Publications (1)

Publication Number Publication Date
GB656617A true GB656617A (en) 1951-08-29

Family

ID=10117981

Family Applications (1)

Application Number Title Priority Date Filing Date
GB1876348A Expired GB656617A (en) 1948-07-13 1948-07-13 Improvements relating to electron guns for cathode ray tubes

Country Status (1)

Country Link
GB (1) GB656617A (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0763846A2 (en) * 1995-09-14 1997-03-19 Licentia Patent-Verwaltungs-GmbH Cathode ray tube

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0763846A2 (en) * 1995-09-14 1997-03-19 Licentia Patent-Verwaltungs-GmbH Cathode ray tube
EP0763846A3 (en) * 1995-09-14 1997-11-12 AEG Elektronische Röhren GmbH Cathode ray tube

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