BE522744A - - Google Patents

Info

Publication number
BE522744A
BE522744A BE522744DA BE522744A BE 522744 A BE522744 A BE 522744A BE 522744D A BE522744D A BE 522744DA BE 522744 A BE522744 A BE 522744A
Authority
BE
Belgium
Application number
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.)
Publication of BE522744A publication Critical patent/BE522744A/xx

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)
BE522744D 1952-09-13 BE522744A (enrdf_load_html_response)

Applications Claiming Priority (1)

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

Publications (1)

Publication Number Publication Date
BE522744A true BE522744A (enrdf_load_html_response)

Family

ID=19750580

Family Applications (1)

Application Number Title Priority Date Filing Date
BE522744D BE522744A (enrdf_load_html_response) 1952-09-13

Country Status (7)

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

Families Citing this family (7)

* 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
JPS56114269A (en) 1980-02-15 1981-09-08 Internatl Precision Inc Scanning type electronic microscope
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 (enrdf_load_html_response) * 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
CH316013A (de) 1956-09-15
DE948799C (de) 1956-09-06
FR1087977A (fr) 1955-03-02
NL91356C (enrdf_load_html_response)
NL92220C (enrdf_load_html_response)
US2749464A (en) 1956-06-05
GB735272A (en) 1955-08-17

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