GB411883A - Improvements relating to cathode ray tubes - Google Patents

Improvements relating to cathode ray tubes

Info

Publication number
GB411883A
GB411883A GB29134/32A GB2913432A GB411883A GB 411883 A GB411883 A GB 411883A GB 29134/32 A GB29134/32 A GB 29134/32A GB 2913432 A GB2913432 A GB 2913432A GB 411883 A GB411883 A GB 411883A
Authority
GB
United Kingdom
Prior art keywords
cathode
tube
ray
ray tubes
oct
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
GB29134/32A
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.)
General Electric Co
Original Assignee
General Electric Co
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 General Electric Co filed Critical General Electric Co
Publication of GB411883A publication Critical patent/GB411883A/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
    • H01J29/52—Arrangements for controlling intensity of ray or beam, e.g. for modulation

Landscapes

  • Manufacture And Refinement Of Metals (AREA)
  • Discharge Lamps And Accessories Thereof (AREA)
  • Manufacture Of Electron Tubes, Discharge Lamp Vessels, Lead-In Wires, And The Like (AREA)
  • Vessels, Lead-In Wires, Accessory Apparatuses For Cathode-Ray Tubes (AREA)

Abstract

411,883. Cathode-ray tubes. INTERNATIONAL GENERAL ELECTRIC CO., Inc., 120, Broadway, New York, U.S.A.- (Assignees of Allgemeine Elektricitõts-Ges.; 2, Friedrich Karl-Ufer, Berlin.) Oct. 18, 1932, No. 29134. Convention date, Oct. 19, 1931. [Class 39 (i).] The intensity of the cathode-ray is modulated magnetically by passing the modulating current through a coil 15 surrounding a tube 10 which is wholly or partially of conducting material and which joins a part 6 containing the cathode 12 to a part 7 supporting the fluorescent screen 14. The parts 6, 7 are of glass and the tube 10 of metal or of internally silvered glass. The tube 10 has an internal diameter of 2-3 mm. and serves as the anode. Specification 177,534, [Class 39 (i)], is referred to. The Specification as open to inspection under Sect. 91 comprises also a modification in which the modulating coil is inside the cathode-ray tube between the cathode and the anode. This subject-matter does not appear in the Specification as accepted.
GB29134/32A 1931-10-19 1932-10-18 Improvements relating to cathode ray tubes Expired GB411883A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DE411883X 1931-10-19

Publications (1)

Publication Number Publication Date
GB411883A true GB411883A (en) 1934-06-18

Family

ID=6433461

Family Applications (1)

Application Number Title Priority Date Filing Date
GB29134/32A Expired GB411883A (en) 1931-10-19 1932-10-18 Improvements relating to cathode ray tubes

Country Status (2)

Country Link
US (1) US2044347A (en)
GB (1) GB411883A (en)

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2619607A (en) * 1951-03-10 1952-11-25 Glaser Steers Corp Internal focusing device

Also Published As

Publication number Publication date
US2044347A (en) 1936-06-16

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