GB462683A - Improvements in or relating to methods of mounting deflecting and focussing means for cathode-ray tubes and the like - Google Patents

Improvements in or relating to methods of mounting deflecting and focussing means for cathode-ray tubes and the like

Info

Publication number
GB462683A
GB462683A GB2538535A GB2538535A GB462683A GB 462683 A GB462683 A GB 462683A GB 2538535 A GB2538535 A GB 2538535A GB 2538535 A GB2538535 A GB 2538535A GB 462683 A GB462683 A GB 462683A
Authority
GB
United Kingdom
Prior art keywords
cathode
deflecting
relating
mounting
methods
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
GB2538535A
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.)
ALFRED HENRY GILBERT
GEORGE RICHARD TINGLEY
LIONEL REGINALD MERDLER
Baird Television Ltd
Original Assignee
ALFRED HENRY GILBERT
GEORGE RICHARD TINGLEY
LIONEL REGINALD MERDLER
Baird Television 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 ALFRED HENRY GILBERT, GEORGE RICHARD TINGLEY, LIONEL REGINALD MERDLER, Baird Television Ltd filed Critical ALFRED HENRY GILBERT
Priority to GB2538535A priority Critical patent/GB462683A/en
Publication of GB462683A publication Critical patent/GB462683A/en
Expired legal-status Critical Current

Links

Classifications

    • HELECTRICITY
    • H01ELECTRIC ELEMENTS
    • H01JELECTRIC DISCHARGE TUBES OR DISCHARGE LAMPS
    • H01J29/00Details of cathode-ray tubes or of electron-beam tubes of the types covered by group H01J31/00
    • H01J29/46Arrangements of electrodes and associated parts for generating or controlling the ray or beam, e.g. electron-optical arrangement
    • H01J29/58Arrangements for focusing or reflecting ray or beam
    • H01J29/64Magnetic lenses
    • H01J29/66Magnetic lenses using electromagnetic means only

Landscapes

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

Abstract

A magnetic shield for a cathode-ray tube &c. consists of a member in the form of a complete body of rotation made of material having an initial magnetic permeability above 2000, preferably a cylinder of the alloy known under the Registered Trade Mark "Mumetal."
GB2538535A 1935-09-12 1935-09-12 Improvements in or relating to methods of mounting deflecting and focussing means for cathode-ray tubes and the like Expired GB462683A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
GB2538535A GB462683A (en) 1935-09-12 1935-09-12 Improvements in or relating to methods of mounting deflecting and focussing means for cathode-ray tubes and the like

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
GB2538535A GB462683A (en) 1935-09-12 1935-09-12 Improvements in or relating to methods of mounting deflecting and focussing means for cathode-ray tubes and the like

Publications (1)

Publication Number Publication Date
GB462683A true GB462683A (en) 1937-03-12

Family

ID=10226815

Family Applications (1)

Application Number Title Priority Date Filing Date
GB2538535A Expired GB462683A (en) 1935-09-12 1935-09-12 Improvements in or relating to methods of mounting deflecting and focussing means for cathode-ray tubes and the like

Country Status (1)

Country Link
GB (1) GB462683A (en)

Cited By (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2479494A (en) * 1939-01-03 1949-08-16 Pye Ltd Television apparatus
US2568668A (en) * 1950-08-18 1951-09-18 Best Mfg Co Inc Cathode-ray tube focusing device of the permanent magnet type
US2581657A (en) * 1950-07-26 1952-01-08 Myron R Heppner Focusing and centering device for cathode-ray tubes
US2602902A (en) * 1950-02-14 1952-07-08 Bendix Aviat Corp Sweep amplitude control for magnetically deflected cathode-ray tubes
DE754660C (en) * 1938-06-28 1953-03-09 Emi Ltd Arrangement to avoid the leakage flux of a magnetic or electromagnetic lens, which is partly surrounded by a jacket made of ferromagnetic material

Cited By (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE754660C (en) * 1938-06-28 1953-03-09 Emi Ltd Arrangement to avoid the leakage flux of a magnetic or electromagnetic lens, which is partly surrounded by a jacket made of ferromagnetic material
US2479494A (en) * 1939-01-03 1949-08-16 Pye Ltd Television apparatus
US2602902A (en) * 1950-02-14 1952-07-08 Bendix Aviat Corp Sweep amplitude control for magnetically deflected cathode-ray tubes
US2581657A (en) * 1950-07-26 1952-01-08 Myron R Heppner Focusing and centering device for cathode-ray tubes
US2568668A (en) * 1950-08-18 1951-09-18 Best Mfg Co Inc Cathode-ray tube focusing device of the permanent magnet type

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