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FR945685A - Improvements to electronic tubes - Google Patents

Improvements to electronic tubes

Info

Publication number
FR945685A
FR945685A FR945685DA FR945685A FR 945685 A FR945685 A FR 945685A FR 945685D A FR945685D A FR 945685DA FR 945685 A FR945685 A FR 945685A
Authority
FR
France
Prior art keywords
electronic tubes
tubes
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.)
Compagnie Francaise Thomson Houston SA
Original Assignee
Compagnie Francaise Thomson Houston SA
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 Compagnie Francaise Thomson Houston SA filed Critical Compagnie Francaise Thomson Houston SA
Application granted granted Critical
Publication of FR945685A publication Critical patent/FR945685A/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
    • H01J37/02—Details
    • H01J37/20—Means for supporting or positioning the object or the material; Means for adjusting diaphragms or lenses associated with the support
    • 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
    • H01J37/18—Vacuum locks ; Means for obtaining or maintaining the desired pressure within the vessel

Landscapes

  • Chemical & Material Sciences (AREA)
  • Analytical Chemistry (AREA)
  • Microscoopes, Condenser (AREA)
  • Welding Or Cutting Using Electron Beams (AREA)
FR945685D 1941-09-19 1947-04-25 Improvements to electronic tubes Expired FR945685A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
US411515A US2292087A (en) 1941-09-19 1941-09-19 Evacuated electronic apparatus

Publications (1)

Publication Number Publication Date
FR945685A true FR945685A (en) 1949-05-11

Family

ID=23629249

Family Applications (1)

Application Number Title Priority Date Filing Date
FR945685D Expired FR945685A (en) 1941-09-19 1947-04-25 Improvements to electronic tubes

Country Status (4)

Country Link
US (1) US2292087A (en)
BE (1) BE475636A (en)
FR (1) FR945685A (en)
GB (1) GB568259A (en)

Families Citing this family (19)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR964837A (en) * 1942-12-01 1950-08-25
FR944238A (en) * 1947-03-13 1949-03-30 Csf Electronic optics correction method
FR937296A (en) * 1947-06-21 1948-08-12 Csf Improvements to focusing devices, for electron microscopes
US2585297A (en) * 1949-05-23 1952-02-12 Rupert Diecasting Company Aluminum die-casting machine
NL197896A (en) * 1955-05-20
IT584331A (en) * 1955-10-29
CH357378A (en) * 1956-04-02 1961-10-15 Berghaus Elektrophysik Anst Procedure and equipment for carrying out technical processes
US2878387A (en) * 1956-09-10 1959-03-17 Alfred W Chesterman Beam control probe
US2946886A (en) * 1956-10-19 1960-07-26 Jersey Prod Res Co Adjustable ion collector slit for mass spectrometer
US3135889A (en) * 1962-05-22 1964-06-02 Jack A Soules Protected window x-ray tube
US3470412A (en) * 1962-06-13 1969-09-30 Shimadzu Corp Apparatus for exchanging the filament of an electron gun
US3479544A (en) * 1963-12-11 1969-11-18 Stromberg Datagraphix Inc Cathode-ray tube with a removable face for space vehicles
US3449759A (en) * 1967-02-27 1969-06-10 Minnesota Mining & Mfg Electron beam recorder having sealing means
US3886358A (en) * 1974-05-23 1975-05-27 Us Energy Specimen transfer container for ion microprobe mass analyzer
JPS5937540B2 (en) * 1974-09-06 1984-09-10 株式会社日立製作所 Field emission scanning electron microscope
FR2410359A1 (en) * 1977-11-28 1979-06-22 Anvar MOBILE EXTRACTION ELECTRODE FOR ION SOURCE
DE3407050A1 (en) * 1984-02-27 1985-09-05 Siemens AG, 1000 Berlin und 8000 München BODY ACCELERATING ELECTRODE
US5376799A (en) * 1993-04-26 1994-12-27 Rj Lee Group, Inc. Turbo-pumped scanning electron microscope
US8087309B2 (en) * 2009-05-22 2012-01-03 Sion Power Corporation Hermetic sample holder and method for performing microanalysis under controlled atmosphere environment

Also Published As

Publication number Publication date
US2292087A (en) 1942-08-04
BE475636A (en)
GB568259A (en) 1945-03-27

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