FR989390A - Magnetic device for cathode ray tubes - Google Patents

Magnetic device for cathode ray tubes

Info

Publication number
FR989390A
FR989390A FR989390DA FR989390A FR 989390 A FR989390 A FR 989390A FR 989390D A FR989390D A FR 989390DA FR 989390 A FR989390 A FR 989390A
Authority
FR
France
Prior art keywords
cathode ray
magnetic device
ray tubes
tubes
magnetic
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.)
RCA Corp
Original Assignee
RCA Corp
Radio Corporation of America
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 RCA Corp, Radio Corporation of America filed Critical RCA Corp
Application granted granted Critical
Publication of FR989390A publication Critical patent/FR989390A/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
    • H01J29/54—Arrangements for centring ray or beam
FR989390D 1948-06-29 1949-06-21 Magnetic device for cathode ray tubes Expired FR989390A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
US35828A US2646522A (en) 1948-06-29 1948-06-29 Cathode-ray centering

Publications (1)

Publication Number Publication Date
FR989390A true FR989390A (en) 1951-09-07

Family

ID=21885014

Family Applications (1)

Application Number Title Priority Date Filing Date
FR989390D Expired FR989390A (en) 1948-06-29 1949-06-21 Magnetic device for cathode ray tubes

Country Status (3)

Country Link
US (1) US2646522A (en)
FR (1) FR989390A (en)
NL (1) NL147142B (en)

Families Citing this family (12)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
NL92220C (en) * 1952-09-13
US3098942A (en) * 1955-02-24 1963-07-23 Zenith Radio Corp Magnetic centering device for cathode ray tubes
US2795717A (en) * 1955-08-01 1957-06-11 Rca Corp Cathode ray beam centering apparatus
US2926254A (en) * 1955-08-11 1960-02-23 Vickers Electrical Co Ltd Electron lenses
US2922908A (en) * 1955-08-31 1960-01-26 Westinghouse Electric Corp Retaining device
US2922909A (en) * 1955-08-31 1960-01-26 Westinghouse Electric Corp Beam centering apparatus
US2854598A (en) * 1955-11-21 1958-09-30 Baermann Max Magnetic field adjuster for television picture tubes
US2898493A (en) * 1956-05-31 1959-08-04 Sylvania Electric Prod Method and apparatus for controlling electron beams
US2910604A (en) * 1957-06-06 1959-10-27 Albert H Valentine Cathode ray tube clamping centering device
US2954494A (en) * 1958-04-25 1960-09-27 Zenith Radio Corp Cathode-ray beam correction structure
US3497745A (en) * 1967-02-20 1970-02-24 Zenith Radio Corp Alignment magnet for cathode-ray tube
FR2689678B1 (en) * 1992-04-07 1994-09-23 Thomson Tubes & Displays Method for positioning a deflector on the neck of a cathode ray tube and device implementing the method.

Family Cites Families (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2224933A (en) * 1934-02-09 1940-12-17 Loewe Radio Inc Magnetic distortion correcting means for cathode ray tubes
FR796502A (en) * 1934-10-19 1936-04-09 Fernseh Ag Magnet now the straight ray in the braun tubes
US2456474A (en) * 1946-07-02 1948-12-14 Gen Electric Electric discharge device

Also Published As

Publication number Publication date
US2646522A (en) 1953-07-21
NL147142B (en)

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