DE947253C - Kathodenstrahlroehre mit einem magnetischen Fokussierungssystem - Google Patents

Kathodenstrahlroehre mit einem magnetischen Fokussierungssystem

Info

Publication number
DE947253C
DE947253C DEE3678A DEE0003678A DE947253C DE 947253 C DE947253 C DE 947253C DE E3678 A DEE3678 A DE E3678A DE E0003678 A DEE0003678 A DE E0003678A DE 947253 C DE947253 C DE 947253C
Authority
DE
Germany
Prior art keywords
tube
ferromagnetic
cathode ray
axis
focusing system
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
DEE3678A
Other languages
German (de)
English (en)
Inventor
Ronald Charles Hall
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
Original Assignee
EMI 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 filed Critical EMI Ltd
Application granted granted Critical
Publication of DE947253C publication Critical patent/DE947253C/de
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
    • H01J29/54—Arrangements for centring ray or beam

Landscapes

  • Video Image Reproduction Devices For Color Tv Systems (AREA)
  • Manufacture Of Electron Tubes, Discharge Lamp Vessels, Lead-In Wires, And The Like (AREA)
  • Particle Accelerators (AREA)
DEE3678A 1950-05-04 1951-04-29 Kathodenstrahlroehre mit einem magnetischen Fokussierungssystem Expired DE947253C (de)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
GB10994/50A GB699739A (en) 1950-05-04 1950-05-04 Improvements relating to cathode ray tubes

Publications (1)

Publication Number Publication Date
DE947253C true DE947253C (de) 1956-08-16

Family

ID=9978084

Family Applications (1)

Application Number Title Priority Date Filing Date
DEE3678A Expired DE947253C (de) 1950-05-04 1951-04-29 Kathodenstrahlroehre mit einem magnetischen Fokussierungssystem

Country Status (6)

Country Link
US (1) US2717324A (forum.php)
DE (1) DE947253C (forum.php)
ES (1) ES197689A1 (forum.php)
FR (1) FR1036410A (forum.php)
GB (1) GB699739A (forum.php)
NL (2) NL75013C (forum.php)

Families Citing this family (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB731451A (en) * 1952-10-23 1955-06-08 Dennis Henry Covill Improvements in or relating to arrangements for use with cathode ray tubes
US2937309A (en) * 1954-04-07 1960-05-17 Telefunken Gmbh Electron discharge tube
US2889477A (en) * 1955-06-16 1959-06-02 Sylvania Electric Prod Clamp and mounting arrangement
DE1144407B (de) * 1960-03-24 1963-02-28 Telefunken Patent Einrichtung zur Vermeidung von Verzerrungen des Leuchtfleckes bei Kathodenstrahlroehren

Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2416687A (en) * 1944-03-30 1947-03-04 Bell Telephone Labor Inc Magnetic focussing device
GB615553A (en) * 1946-02-27 1949-01-07 Kolster Brandes Ltd Improvements in or relating to devices for focusing an electron beam

Family Cites Families (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2102421A (en) * 1934-07-12 1937-12-14 Gen Electric Cathode ray oscillograph
GB492167A (en) * 1937-03-10 1938-09-12 Hans Gfrhard Lubszynski Improvements in or relating to electro-optical image converting or transmitting arrangements
US2234720A (en) * 1939-08-10 1941-03-11 Gen Electric Electron discharge apparatus
US2501516A (en) * 1947-12-31 1950-03-21 Gen Electric Deflecting and focusing device for cathode-ray apparatus
US2513929A (en) * 1948-05-21 1950-07-04 Gen Electric Beam centering device for cathode-ray tubes
US2539156A (en) * 1949-01-19 1951-01-23 Tele Tone Radio Corp Ion trap magnet
US2533689A (en) * 1950-06-28 1950-12-12 Quam Nichols Company Magnetic focusing device

Patent Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2416687A (en) * 1944-03-30 1947-03-04 Bell Telephone Labor Inc Magnetic focussing device
GB615553A (en) * 1946-02-27 1949-01-07 Kolster Brandes Ltd Improvements in or relating to devices for focusing an electron beam

Also Published As

Publication number Publication date
GB699739A (en) 1953-11-18
NL75013C (forum.php)
US2717324A (en) 1955-09-06
NL160744B (nl)
ES197689A1 (es) 1953-07-01
FR1036410A (fr) 1953-09-08

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