FR1120026A - Magnetic electronic lens - Google Patents

Magnetic electronic lens

Info

Publication number
FR1120026A
FR1120026A FR1120026DA FR1120026A FR 1120026 A FR1120026 A FR 1120026A FR 1120026D A FR1120026D A FR 1120026DA FR 1120026 A FR1120026 A FR 1120026A
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 FR1120026A publication Critical patent/FR1120026A/en
Expired legal-status Critical Current

Links

Classifications

    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01F—MAGNETS; INDUCTANCES; TRANSFORMERS; SELECTION OF MATERIALS FOR THEIR MAGNETIC PROPERTIES
    • H01F7/00—Magnets
    • H01F7/02—Permanent magnets [PM]
    • H01F7/0273—Magnetic circuits with PM for magnetic field generation
    • H01F7/0278—Magnetic circuits with PM for magnetic field generation for generating uniform fields, focusing, deflecting electrically charged particles
    • 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

Landscapes

  • Physics & Mathematics (AREA)
  • Electromagnetism (AREA)
  • Engineering & Computer Science (AREA)
  • Power Engineering (AREA)
  • Optical Recording Or Reproduction (AREA)
  • Analysing Materials By The Use Of Radiation (AREA)
  • Magnetic Treatment Devices (AREA)
FR1120026D 1954-03-05 1955-03-03 Magnetic electronic lens Expired FR1120026A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
NL766857X 1954-03-05

Publications (1)

Publication Number Publication Date
FR1120026A true FR1120026A (en) 1956-06-28

Family

ID=19827648

Family Applications (1)

Application Number Title Priority Date Filing Date
FR1120026D Expired FR1120026A (en) 1954-03-05 1955-03-03 Magnetic electronic lens

Country Status (5)

Country Link
US (1) US2799813A (en)
DE (1) DE1035812B (en)
FR (1) FR1120026A (en)
GB (1) GB766857A (en)
NL (1) NL87140C (en)

Families Citing this family (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
BE516722A (en) * 1952-01-04
US2943219A (en) * 1955-09-19 1960-06-28 Philco Corp Beam positioning apparatus for cathode ray tubes
US2888634A (en) * 1957-07-09 1959-05-26 Du Mont Allen B Lab Inc Electric circuit
NL7812540A (en) * 1978-12-27 1980-07-01 Philips Nv CATHED BEAM TUBE.
US4647887A (en) * 1984-12-24 1987-03-03 The United States Of America As Represented By The Secretary Of The Army Lightweight cladding for magnetic circuits
US5014028A (en) * 1990-04-25 1991-05-07 The United States Of America As Represented By The Secretary Of The Army Triangular section permanent magnetic structure

Family Cites Families (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2157182A (en) * 1935-12-31 1939-05-09 Rca Corp Cathode ray deflecting device
US2339087A (en) * 1939-06-30 1944-01-11 Milwaukee Gas Specialty Co Thermostatic control device
NL147275B (en) * 1948-07-01 Plessey Uk Limited ELECTRIC TORQUE SWITCH FOR PUSH-BUTTON CONTROL.

Also Published As

Publication number Publication date
DE1035812B (en) 1958-08-07
US2799813A (en) 1957-07-16
NL87140C (en)
GB766857A (en) 1957-01-23

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