FR1090512A - Magnetic concentration device - Google Patents

Magnetic concentration device

Info

Publication number
FR1090512A
FR1090512A FR1090512DA FR1090512A FR 1090512 A FR1090512 A FR 1090512A FR 1090512D A FR1090512D A FR 1090512DA FR 1090512 A FR1090512 A FR 1090512A
Authority
FR
France
Prior art keywords
concentration device
magnetic concentration
magnetic
concentration
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
Other languages
French (fr)
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.)
Koninklijke Philips NV
Original Assignee
Philips Gloeilampenfabrieken NV
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 Philips Gloeilampenfabrieken NV filed Critical Philips Gloeilampenfabrieken NV
Application granted granted Critical
Publication of FR1090512A publication Critical patent/FR1090512A/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
    • H01J29/68—Magnetic lenses using permanent magnets only
FR1090512D 1952-08-26 1953-08-26 Magnetic concentration device Expired FR1090512A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
GB21490/52A GB763586A (en) 1952-08-26 1952-08-26 Improvements in or relating to permanent magnet focussing arrangements for cathode ray tubes

Publications (1)

Publication Number Publication Date
FR1090512A true FR1090512A (en) 1955-03-31

Family

ID=10163820

Family Applications (1)

Application Number Title Priority Date Filing Date
FR1090512D Expired FR1090512A (en) 1952-08-26 1953-08-26 Magnetic concentration device

Country Status (5)

Country Link
US (1) US2740064A (en)
BE (1) BE522315A (en)
DE (1) DE972501C (en)
FR (1) FR1090512A (en)
GB (1) GB763586A (en)

Families Citing this family (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2820917A (en) * 1954-02-23 1958-01-21 Sprague Electric Co Focussing device
NL199308A (en) * 1954-08-04
NL86361C (en) * 1954-12-04
US3098942A (en) * 1955-02-24 1963-07-23 Zenith Radio Corp Magnetic centering device for cathode ray tubes
US2985788A (en) * 1956-01-19 1961-05-23 Westinghouse Electric Corp Spark gap device

Family Cites Families (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2418487A (en) * 1944-03-31 1947-04-08 Bell Telephone Labor Inc Cathode ray magnetic focusing device
US2443973A (en) * 1945-01-05 1948-06-22 Avco Mfg Corp Control device for cathode-ray focusing coils
BE487122A (en) * 1948-02-07
US2569327A (en) * 1948-08-31 1951-09-25 Rca Corp Electron beam bender
GB670021A (en) * 1949-02-18 1952-04-09 Patrick Richard James Court Improvements in beam centering devices for cathode ray tubes
US2580606A (en) * 1951-03-21 1952-01-01 Best Mfg Company Inc Cathode-ray tube focusing device

Also Published As

Publication number Publication date
GB763586A (en) 1956-12-12
DE972501C (en) 1959-08-20
US2740064A (en) 1956-03-27
BE522315A (en)

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