GB637361A - Improvements in and relating to electron microscope - Google Patents

Improvements in and relating to electron microscope

Info

Publication number
GB637361A
GB637361A GB3668/45A GB366845A GB637361A GB 637361 A GB637361 A GB 637361A GB 3668/45 A GB3668/45 A GB 3668/45A GB 366845 A GB366845 A GB 366845A GB 637361 A GB637361 A GB 637361A
Authority
GB
United Kingdom
Prior art keywords
cathode
specimen
tip
feb
electron microscope
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
GB3668/45A
Other languages
English (en)
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.)
British Thomson Houston Co Ltd
Original Assignee
British Thomson Houston Co Ltd
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 British Thomson Houston Co Ltd filed Critical British Thomson Houston Co Ltd
Publication of GB637361A publication Critical patent/GB637361A/en
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
    • H01J37/26—Electron or ion microscopes; Electron or ion diffraction tubes
    • H01J37/27—Shadow microscopy

Landscapes

  • Chemical & Material Sciences (AREA)
  • Analytical Chemistry (AREA)
  • Electron Sources, Ion Sources (AREA)
  • Manufacture Of Electron Tubes, Discharge Lamp Vessels, Lead-In Wires, And The Like (AREA)
GB3668/45A 1944-02-18 1945-02-14 Improvements in and relating to electron microscope Expired GB637361A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
US522875A US2422041A (en) 1944-02-18 1944-02-18 Electron microscope

Publications (1)

Publication Number Publication Date
GB637361A true GB637361A (en) 1950-05-17

Family

ID=24082724

Family Applications (1)

Application Number Title Priority Date Filing Date
GB3668/45A Expired GB637361A (en) 1944-02-18 1945-02-14 Improvements in and relating to electron microscope

Country Status (4)

Country Link
US (1) US2422041A (enrdf_load_stackoverflow)
BE (1) BE479996A (enrdf_load_stackoverflow)
FR (1) FR977856A (enrdf_load_stackoverflow)
GB (1) GB637361A (enrdf_load_stackoverflow)

Families Citing this family (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2813991A (en) * 1952-11-05 1957-11-19 Gen Electric Electron emitting electrode
US5654548A (en) * 1992-08-06 1997-08-05 International Business Machines Corporation Source for intense coherent electron pulses
US5376792A (en) * 1993-04-26 1994-12-27 Rj Lee Group, Inc. Scanning electron microscope

Family Cites Families (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2249453A (en) * 1938-12-02 1941-07-15 Gen Electric Electron microscope
CH219289A (de) * 1939-07-22 1942-01-31 Fides Gmbh Elektronenmikroskop.
CA432875A (en) * 1939-07-29 1946-01-29 G. Ramberg Edward Electron microscope
US2363359A (en) * 1941-05-01 1944-11-21 Gen Electric Electron microscope

Also Published As

Publication number Publication date
BE479996A (enrdf_load_stackoverflow)
FR977856A (fr) 1951-04-06
US2422041A (en) 1947-06-10

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