FR938893A - Electronic lens system - Google Patents

Electronic lens system

Info

Publication number
FR938893A
FR938893A FR938893DA FR938893A FR 938893 A FR938893 A FR 938893A FR 938893D A FR938893D A FR 938893DA FR 938893 A FR938893 A FR 938893A
Authority
FR
France
Prior art keywords
lens system
electronic lens
electronic
lens
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
Priority claimed from US537273A external-priority patent/US2420514A/en
Application filed by Compagnie Francaise Thomson Houston SA filed Critical Compagnie Francaise Thomson Houston SA
Application granted granted Critical
Publication of FR938893A publication Critical patent/FR938893A/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
    • H01J37/04—Arrangements of electrodes and associated parts for generating or controlling the discharge, e.g. electron-optical arrangement, ion-optical arrangement
    • H01J37/06—Electron sources; Electron guns
    • H01J37/067—Replacing parts of guns; Mutual adjustment of electrodes
    • 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
    • H01J29/62—Electrostatic lenses
    • H01J29/622—Electrostatic lenses producing fields exhibiting symmetry of revolution
    • H01J29/624—Electrostatic lenses producing fields exhibiting symmetry of revolution co-operating with or closely associated to an electron gun
    • 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
    • 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, ion-optical arrangement
    • 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, ion-optical arrangement
    • H01J37/06—Electron sources; Electron guns
    • H01J37/065—Construction of guns or parts thereof
    • 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, ion-optical arrangement
    • H01J37/10—Lenses
    • H01J37/12—Lenses electrostatic
    • 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
    • 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 objects 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
    • H01J37/24—Circuit arrangements not adapted to a particular application of the tube and not otherwise provided for
FR938893D 1942-12-01 1946-12-18 Electronic lens system Expired FR938893A (en)

Applications Claiming Priority (6)

Application Number Priority Date Filing Date Title
US467530A US2424788A (en) 1942-12-01 1942-12-01 Electron microscope
US507557A US2400331A (en) 1942-12-01 1943-10-25 Electron lens system
US519773A US2424790A (en) 1942-12-01 1944-01-26 Electron microscope
US519774A US2424791A (en) 1942-12-01 1944-01-26 Electron microscope apparatus
US519772A US2424789A (en) 1942-12-01 1944-01-26 Electron microscope
US537273A US2420514A (en) 1944-05-25 1944-05-25 Electron lens structure

Publications (1)

Publication Number Publication Date
FR938893A true FR938893A (en) 1948-10-27

Family

ID=32180838

Family Applications (3)

Application Number Title Priority Date Filing Date
FR964837D Expired FR964837A (en) 1942-12-01
FR938893D Expired FR938893A (en) 1942-12-01 1946-12-18 Electronic lens system
FR58024D Expired FR58024E (en) 1942-12-01 1948-02-18

Family Applications Before (1)

Application Number Title Priority Date Filing Date
FR964837D Expired FR964837A (en) 1942-12-01

Family Applications After (1)

Application Number Title Priority Date Filing Date
FR58024D Expired FR58024E (en) 1942-12-01 1948-02-18

Country Status (4)

Country Link
US (5) US2424788A (en)
BE (4) BE576003A (en)
FR (3) FR938893A (en)
GB (3) GB576003A (en)

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US2734141A (en) * 1956-02-07 hughes
FR1001312A (en) * 1946-04-15 1952-02-22 Csf Vacuum adjustment and centering device of a wehnelt cathode filament
CH265966A (en) * 1946-10-04 1949-12-31 Csf Sealed disc electronic discharge tube comprising an axially adjustable emissive cathode.
FR937296A (en) * 1947-06-21 1948-08-12 Csf Improvements to focusing devices, for electron microscopes
US2628996A (en) * 1949-01-21 1953-02-17 Western Electric Co Extensible folded terminal for electrical coils
US2817035A (en) * 1954-04-26 1957-12-17 Hughes Aircraft Co Brillouin flow electron gun
US2877286A (en) * 1955-06-13 1959-03-10 Cs 13 Corp Radiant energy shielding device
NL95319C (en) * 1957-09-27
US3292041A (en) * 1962-07-02 1966-12-13 Hitachi Ltd Multistage type high voltage electron gun with controllable electrode spacing
US3182175A (en) * 1962-09-24 1965-05-04 Nat Res Corp Electron beam heating device
US3614422A (en) * 1969-08-01 1971-10-19 Hitachi Ltd Surge reduction resistors between a high-voltage source and an electron microscope electron gun
US3982058A (en) * 1975-05-13 1976-09-21 The United States Of America As Represented By The Secretary Of The Navy Magnetic and electric field shielding of computer components from lightning
US3961220A (en) * 1975-05-16 1976-06-01 Gte Sylvania Incorporated Snubber means for positioning a gun structure in an electron discharge device
FR2417179A1 (en) * 1978-02-08 1979-09-07 Hitachi Ltd ELECTRONIC CANNON WITH FIELD EMISSION
US4196371A (en) * 1978-04-05 1980-04-01 Tektronix, Inc. Shock-absorbing means for mesh-carrying member of a cathode ray tube
US4359664A (en) * 1980-07-02 1982-11-16 North American Philips Consumer Electronics Corp. Method of mounting a cathode and eyelet for use therewith
US4446374A (en) * 1982-01-04 1984-05-01 Ivanov Andrei S Electron beam accelerator
US5376792A (en) * 1993-04-26 1994-12-27 Rj Lee Group, Inc. Scanning electron microscope
US20070145266A1 (en) * 2005-12-12 2007-06-28 Avi Cohen Electron microscope apparatus using CRT-type optics
WO2007070475A2 (en) * 2005-12-12 2007-06-21 Kla-Tencor Technologies Corporation Scanning electron microscope with crt-type electron optics
US20070145267A1 (en) * 2005-12-12 2007-06-28 Adler David L Portable scanning electron microscope
WO2011112614A2 (en) * 2010-03-08 2011-09-15 Microscopy Innovations, Llc Device for holding electron microscope grids and other materials
JP6573835B2 (en) * 2016-01-12 2019-09-11 株式会社荏原製作所 Inspection apparatus and high-pressure reference pipe manufacturing method

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US1419241A (en) * 1922-06-13 X-ray cabinet
US2132076A (en) * 1938-10-04 Fluos
US1836829A (en) * 1928-04-17 1931-12-15 Bell Telephone Labor Inc Electric discharge device
US2036532A (en) * 1928-12-12 1936-04-07 Knoll Cathode-ray-oscillograph
US2227189A (en) * 1928-12-12 1940-12-31 Rca Corp Cathode-ray oscillograph
DE906737C (en) * 1931-05-31 1954-03-18 Siemens Ag Arrangement for enlarged imaging of objects by means of electron beams
US2062243A (en) * 1931-12-24 1936-11-24 New York Central Railroad Co Auto boxcar
US2075141A (en) * 1932-03-24 1937-03-30 Schlesinger Kurt Cathode ray tube system
US2227033A (en) * 1932-04-04 1940-12-31 Loewe Radio Inc Electron optical system
US2147372A (en) * 1935-03-14 1939-02-14 Telefunken Gmbh Cathode ray tube
BE426509A (en) * 1937-02-22
GB493790A (en) * 1937-04-30 1938-10-14 British Thomson Houston Co Ltd Improvements in or relating to cathode ray devices
NL53220C (en) * 1937-07-07
NL54222C (en) * 1937-08-24
US2227034A (en) * 1937-08-30 1940-12-31 Loewe Radio Inc Cathode ray tube
US2200694A (en) * 1937-09-21 1940-05-14 Pintsch Julius Kg Annular fusion joint
US2234281A (en) * 1938-02-10 1941-03-11 Fides Gmbh Shielded electron microscope
US2218639A (en) * 1938-07-09 1940-10-22 Dill Mfg Co Air bag stem
US2208406A (en) * 1938-08-17 1940-07-16 Westinghouse Electric & Mfg Co Cathode ray tube
US2266717A (en) * 1938-09-16 1941-12-16 Fides Gmbh Electron microscope
NL56051C (en) * 1938-10-19
US2305459A (en) * 1938-11-11 1942-12-15 Schuchmann Hans Electronic microscope
FR849698A (en) * 1938-11-19 1939-11-29 Licentia Gmbh Electron microscope operated by an influence machine
FR849648A (en) * 1938-11-19 1939-11-28 Licentia Gmbh Electron microscope based on the optical ultramicroscope principle
US2344238A (en) * 1939-01-19 1944-03-14 Rca Corp Compressed fluid condenser
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US2200095A (en) * 1939-02-28 1940-05-07 Rca Corp Photographic device for vacuum apparatus
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US2356633A (en) * 1939-10-19 1944-08-22 Ardenne Manfred Von Electronic microscope
US2244358A (en) * 1939-12-30 1941-06-03 Rca Corp Thermionic cathode assembly
US2301303A (en) * 1940-02-17 1942-11-10 Rca Corp Shielded electronic microscope
US2275234A (en) * 1940-04-25 1942-03-03 Rca Corp Electron diffraction camera
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US2361722A (en) * 1940-05-09 1944-10-31 Ardenne Manfred Von Electronic microscope
US2284710A (en) * 1940-06-01 1942-06-02 Rca Corp Vacuum plumbing
US2301490A (en) * 1940-06-25 1942-11-10 Bell Telephone Labor Inc Electronic discharge device
US2272843A (en) * 1940-07-31 1942-02-10 Rca Corp Electron microscope specimen chamber
US2267082A (en) * 1941-01-18 1941-12-23 Westinghouse Electric & Mfg Co Grid lead assembly
US2303166A (en) * 1941-01-21 1942-11-24 Bell Telephone Labor Inc Electron discharge device
US2319061A (en) * 1941-01-31 1943-05-11 Rca Corp Demountable electron gun
US2362034A (en) * 1941-06-25 1944-11-07 William F Stahl Shield for electrical currents
US2277414A (en) * 1941-07-02 1942-03-24 Gen Electric Electron lens
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BE475636A (en) * 1941-09-19
US2330888A (en) * 1942-05-29 1943-10-05 Rca Corp Scanning microscope
US2347348A (en) * 1942-06-30 1944-04-25 Rca Corp Electron microscope object chamber
US2380209A (en) * 1942-12-11 1945-07-10 Gen Electric Positioning means
US2360872A (en) * 1943-09-25 1944-10-24 Rca Corp Electron optical instrument

Also Published As

Publication number Publication date
GB576003A (en) 1946-03-14
BE474126A (en)
US2424790A (en) 1947-07-29
US2424788A (en) 1947-07-29
US2424789A (en) 1947-07-29
FR964837A (en) 1950-08-25
FR58024E (en) 1953-09-21
BE576003A (en)
US2400331A (en) 1946-05-14
GB669381A (en) 1952-04-02
US2424791A (en) 1947-07-29
GB647703A (en) 1950-12-20
BE483238A (en)
BE480179A (en)

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