GB516478A - Improvements in or relating to magnetic electron lenses - Google Patents

Improvements in or relating to magnetic electron lenses

Info

Publication number
GB516478A
GB516478A GB19093/38A GB1909338A GB516478A GB 516478 A GB516478 A GB 516478A GB 19093/38 A GB19093/38 A GB 19093/38A GB 1909338 A GB1909338 A GB 1909338A GB 516478 A GB516478 A GB 516478A
Authority
GB
United Kingdom
Prior art keywords
shield
magnet
screen
smaller end
laminated ring
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
GB19093/38A
Other languages
English (en)
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.)
Individual
Original Assignee
Individual
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 CA432539A priority Critical patent/CA432539A/fr
Application filed by Individual filed Critical Individual
Priority to GB19093/38A priority patent/GB516478A/en
Priority to US274038A priority patent/US2294123A/en
Priority to FR855209D priority patent/FR855209A/fr
Priority to DEE52718D priority patent/DE754660C/de
Publication of GB516478A publication Critical patent/GB516478A/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
    • H01J29/58—Arrangements for focusing or reflecting ray or beam
    • H01J29/64—Magnetic lenses
    • H01J29/66—Magnetic lenses using electromagnetic means only

Landscapes

  • Physics & Mathematics (AREA)
  • Electromagnetism (AREA)
  • Shielding Devices Or Components To Electric Or Magnetic Fields (AREA)
  • Video Image Reproduction Devices For Color Tv Systems (AREA)
GB19093/38A 1938-06-28 1938-06-28 Improvements in or relating to magnetic electron lenses Expired GB516478A (en)

Priority Applications (5)

Application Number Priority Date Filing Date Title
CA432539A CA432539A (fr) 1938-06-28 Lentille magnetique a electrons
GB19093/38A GB516478A (en) 1938-06-28 1938-06-28 Improvements in or relating to magnetic electron lenses
US274038A US2294123A (en) 1938-06-28 1939-05-16 Magnetic electron lens
FR855209D FR855209A (fr) 1938-06-28 1939-05-24 Perfectionnement aux lentilles électroniques
DEE52718D DE754660C (de) 1938-06-28 1939-06-29 Anordnung zur Vermeidung des Streuflusses einer magnetischen oder elektromagnetischen Linse, die zum Teil von einem Mantel aus ferromagnetischem Werkstoff umgeben ist

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
GB19093/38A GB516478A (en) 1938-06-28 1938-06-28 Improvements in or relating to magnetic electron lenses

Publications (1)

Publication Number Publication Date
GB516478A true GB516478A (en) 1940-01-03

Family

ID=10123665

Family Applications (1)

Application Number Title Priority Date Filing Date
GB19093/38A Expired GB516478A (en) 1938-06-28 1938-06-28 Improvements in or relating to magnetic electron lenses

Country Status (5)

Country Link
US (1) US2294123A (fr)
CA (1) CA432539A (fr)
DE (1) DE754660C (fr)
FR (1) FR855209A (fr)
GB (1) GB516478A (fr)

Families Citing this family (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2469165A (en) * 1946-10-29 1949-05-03 Rca Corp Correction device for electron lenses
GB664813A (en) * 1947-08-29 1952-01-16 Emi Ltd Improvements relating to apparatus embodying electron discharge tubes
US2892962A (en) * 1955-10-07 1959-06-30 Karl F Ross Electronic lens system
US3163794A (en) * 1960-06-20 1964-12-29 Philco Corp Deflection yoke with separable portions for crt with constricted neck
US3165677A (en) * 1960-08-30 1965-01-12 Gen Instrument Corp Television tube deflection coil assembly with separable yoke sections

Family Cites Families (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB462683A (en) * 1935-09-12 1937-03-12 Alfred Henry Gilbert Improvements in or relating to methods of mounting deflecting and focussing means for cathode-ray tubes and the like

Also Published As

Publication number Publication date
US2294123A (en) 1942-08-25
DE754660C (de) 1953-03-09
FR855209A (fr) 1940-05-06
CA432539A (fr) 1946-01-15

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