FR1069392A - Magnetic electronic lens - Google Patents

Magnetic electronic lens

Info

Publication number
FR1069392A
FR1069392A FR1069392DA FR1069392A FR 1069392 A FR1069392 A FR 1069392A FR 1069392D A FR1069392D A FR 1069392DA FR 1069392 A FR1069392 A FR 1069392A
Authority
FR
France
Prior art keywords
electronic lens
magnetic electronic
magnetic
lens
electronic
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 FR1069392A publication Critical patent/FR1069392A/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
FR1069392D 1952-01-04 1953-01-02 Magnetic electronic lens Expired FR1069392A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
NL310959X 1952-01-04

Publications (1)

Publication Number Publication Date
FR1069392A true FR1069392A (en) 1954-07-07

Family

ID=19783636

Family Applications (1)

Application Number Title Priority Date Filing Date
FR1069392D Expired FR1069392A (en) 1952-01-04 1953-01-02 Magnetic electronic lens

Country Status (7)

Country Link
US (1) US2849636A (en)
BE (1) BE516722A (en)
CH (1) CH310959A (en)
DE (1) DE976927C (en)
FR (1) FR1069392A (en)
GB (1) GB729840A (en)
NL (2) NL166477B (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0281190A1 (en) * 1987-03-05 1988-09-07 Koninklijke Philips Electronics N.V. Magnetic focusing lens for a cathode ray tube

Families Citing this family (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3324433A (en) * 1963-12-27 1967-06-06 Hitachi Ltd Electron lens system excited by at least one permanent magnet
US3387158A (en) * 1965-04-14 1968-06-04 Sony Corp Focus magnet assembly for cathode ray tubes
US3354336A (en) * 1965-06-30 1967-11-21 Zenith Radio Corp Ring magnetized across thickness with two diametrically opposed and oppositely oriented groups of magnetic pole pairs
NL7812540A (en) * 1978-12-27 1980-07-01 Philips Nv CATHED BEAM TUBE.
US9103398B2 (en) * 2011-09-10 2015-08-11 Honda Motor Co., Ltd. Variable damping force damper
US11483919B2 (en) * 2019-03-27 2022-10-25 Huazhong University Of Science And Technology System of electron irradiation

Family Cites Families (16)

* 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
FR796502A (en) * 1934-10-19 1936-04-09 Fernseh Ag Magnet now the straight ray in the braun tubes
DE682031C (en) * 1936-09-11 1939-10-06 Aeg Rotationally symmetric magnetic electron lens made of permanent magnets
DE720927C (en) * 1937-02-25 1942-05-19 Telefunken Gmbh Magnetic electron lens
DE688644C (en) * 1937-05-29 1940-02-27 Aeg r coaxial partial lenses
GB522377A (en) * 1938-12-07 1940-06-17 Ferranti Ltd Improvements in or relating to focusing systems for electron beams
DE758548C (en) * 1939-02-10 1953-05-26 Telefunken Gmbh Magnetic electron lens without image rotation
NL147275B (en) * 1948-07-01 Plessey Uk Limited ELECTRIC TORQUE SWITCH FOR PUSH-BUTTON CONTROL.
US2582788A (en) * 1949-02-01 1952-01-15 Gen Electric Magnetic suspension for horizontal shafts
US2564737A (en) * 1949-12-23 1951-08-21 Rauland Corp Cathode-ray tube
US2615738A (en) * 1950-03-18 1952-10-28 Bailey Meter Co Linkage connector
US2565533A (en) * 1950-05-19 1951-08-28 Rauland Corp Cathode-ray tube
US2714678A (en) * 1950-09-03 1955-08-02 Siemens Ag Electron microscopes
BE503996A (en) * 1950-12-12
US2722617A (en) * 1951-11-28 1955-11-01 Hartford Nat Bank & Trust Comp Magnetic circuits and devices
NL87140C (en) * 1954-03-05

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0281190A1 (en) * 1987-03-05 1988-09-07 Koninklijke Philips Electronics N.V. Magnetic focusing lens for a cathode ray tube

Also Published As

Publication number Publication date
BE516722A (en)
CH310959A (en) 1955-11-15
GB729840A (en) 1955-05-11
US2849636A (en) 1958-08-26
NL166477B (en)
NL87342C (en)
DE976927C (en) 1964-08-06

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