FR1087977A - Lentille électronique magnétique réglable - Google Patents

Lentille électronique magnétique réglable

Info

Publication number
FR1087977A
FR1087977A FR1087977DA FR1087977A FR 1087977 A FR1087977 A FR 1087977A FR 1087977D A FR1087977D A FR 1087977DA FR 1087977 A FR1087977 A FR 1087977A
Authority
FR
France
Prior art keywords
adjustable magnetic
electronic lens
magnetic electronic
lens
adjustable
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
English (en)
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 FR1087977A publication Critical patent/FR1087977A/fr
Expired legal-status Critical Current

Links

Classifications

    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01J—ELECTRIC DISCHARGE TUBES OR DISCHARGE LAMPS
    • H01J37/00—Discharge tubes with provision for introducing objects or material to be exposed to the discharge, e.g. for the purpose of examination or processing thereof
    • H01J37/02—Details
    • H01J37/04—Arrangements of electrodes and associated parts for generating or controlling the discharge, e.g. electron-optical arrangement or ion-optical arrangement
    • H01J37/10—Lenses
    • H01J37/14—Lenses magnetic

Landscapes

  • Chemical & Material Sciences (AREA)
  • Analytical Chemistry (AREA)
  • Electron Beam Exposure (AREA)
  • Electron Sources, Ion Sources (AREA)
FR1087977D 1952-09-13 1953-09-11 Lentille électronique magnétique réglable Expired FR1087977A (fr)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
NL172475 1952-09-13

Publications (1)

Publication Number Publication Date
FR1087977A true FR1087977A (fr) 1955-03-02

Family

ID=19750580

Family Applications (1)

Application Number Title Priority Date Filing Date
FR1087977D Expired FR1087977A (fr) 1952-09-13 1953-09-11 Lentille électronique magnétique réglable

Country Status (7)

Country Link
US (1) US2749464A (pl)
BE (1) BE522744A (pl)
CH (1) CH316013A (pl)
DE (1) DE948799C (pl)
FR (1) FR1087977A (pl)
GB (1) GB735272A (pl)
NL (2) NL91356C (pl)

Families Citing this family (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2939994A (en) * 1957-01-28 1960-06-07 Westinghouse Electric Corp Electron discharge device
US3787696A (en) * 1972-03-15 1974-01-22 Etec Corp Scanning electron microscope electron-optical column construction
FR2597259A1 (fr) * 1986-04-15 1987-10-16 Thomson Csf Dispositif a faisceau electronique pour projeter l'image d'un objet sur un echantillon
GB0912332D0 (en) * 2009-07-16 2009-08-26 Vg Systems Ltd Magnetic lens,method for focussing charged particles and charged particle energy analyser
DE102009028013B9 (de) * 2009-07-24 2014-04-17 Carl Zeiss Microscopy Gmbh Teilchenstrahlgerät mit einer Blendeneinheit und Verfahren zur Einstellung eines Strahlstroms in einem Teilchenstrahlgerät
EP3872837A1 (en) 2020-02-25 2021-09-01 The Provost, Fellows, Scholars and other Members of Board of Trinity College Dublin Pole piece for an electron microscope

Family Cites Families (12)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB472165A (en) * 1936-03-11 1937-09-13 Ferranti Ltd Improvements in or relating to focusing systems for electron beams
GB494839A (en) * 1937-05-01 1938-11-01 British Thomson Houston Co Ltd Improvements in and relating to cathode ray apparatus
US2295403A (en) * 1940-11-15 1942-09-08 Rca Corp Apertured electron lens and method of alignment
DE898217C (de) * 1943-01-27 1953-11-30 Siemens Ag Anordnung zur Veraenderung der mit einer magnetischen Elektronenlinse erzielbaren Vergroesserungen
US2369782A (en) * 1943-04-01 1945-02-20 Rca Corp Electron lens system
NL89013C (pl) * 1944-05-31
US2418349A (en) * 1945-12-13 1947-04-01 Rca Corp Method of and means for correcting for distortion in electron lens systems
US2469165A (en) * 1946-10-29 1949-05-03 Rca Corp Correction device for electron lenses
NL147142B (nl) * 1948-06-29 Hoffmann La Roche Werkwijze voor de bereiding van een hydrochloride van een benzodiazepinederivaat, werkwijze voor de bereiding van preparaten met hypnogene eigenschappen, en het gevormde preparaat.
US2567674A (en) * 1949-11-08 1951-09-11 Rca Corp Velocity modulated electron discharge device
US2594099A (en) * 1950-04-22 1952-04-22 Ite Circuit Breaker Ltd Focusing coil for cathode-ray tubes
US2679018A (en) * 1950-06-30 1954-05-18 Rca Corp Magnetic electron lens pole piece

Also Published As

Publication number Publication date
GB735272A (en) 1955-08-17
NL92220C (pl)
CH316013A (de) 1956-09-15
DE948799C (de) 1956-09-06
US2749464A (en) 1956-06-05
BE522744A (pl)
NL91356C (pl)

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