FR2119692A5 - - Google Patents

Info

Publication number
FR2119692A5
FR2119692A5 FR7146402A FR7146402A FR2119692A5 FR 2119692 A5 FR2119692 A5 FR 2119692A5 FR 7146402 A FR7146402 A FR 7146402A FR 7146402 A FR7146402 A FR 7146402A FR 2119692 A5 FR2119692 A5 FR 2119692A5
Authority
FR
France
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
FR7146402A
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.)
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 FR2119692A5 publication Critical patent/FR2119692A5/fr
Expired legal-status Critical Current

Links

Classifications

    • G—PHYSICS
    • G03—PHOTOGRAPHY; CINEMATOGRAPHY; ANALOGOUS TECHNIQUES USING WAVES OTHER THAN OPTICAL WAVES; ELECTROGRAPHY; HOLOGRAPHY
    • G03G—ELECTROGRAPHY; ELECTROPHOTOGRAPHY; MAGNETOGRAPHY
    • G03G15/00—Apparatus for electrographic processes using a charge pattern
    • G03G15/06—Apparatus for electrographic processes using a charge pattern for developing
    • G03G15/08—Apparatus for electrographic processes using a charge pattern for developing using a solid developer, e.g. powder developer
    • G03G15/09—Apparatus for electrographic processes using a charge pattern for developing using a solid developer, e.g. powder developer using magnetic brush
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01J—ELECTRIC DISCHARGE TUBES OR DISCHARGE LAMPS
    • H01J3/00—Details of electron-optical or ion-optical arrangements or of ion traps common to two or more basic types of discharge tubes or lamps
    • H01J3/02—Electron guns
    • 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
    • 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
    • H01J37/06—Electron sources; Electron guns
    • H01J37/075—Electron guns using thermionic emission from cathodes heated by particle bombardment or by irradiation, e.g. by laser
    • 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
    • H01J37/28—Electron or ion microscopes; Electron or ion diffraction tubes with scanning beams

Landscapes

  • Chemical & Material Sciences (AREA)
  • Analytical Chemistry (AREA)
  • Physics & Mathematics (AREA)
  • General Physics & Mathematics (AREA)
  • Optics & Photonics (AREA)
  • Electron Sources, Ion Sources (AREA)
FR7146402A 1970-12-23 1971-12-23 Expired FR2119692A5 (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
NL7018701A NL7018701A (en) 1970-12-23 1970-12-23

Publications (1)

Publication Number Publication Date
FR2119692A5 true FR2119692A5 (en) 1972-08-04

Family

ID=19811873

Family Applications (1)

Application Number Title Priority Date Filing Date
FR7146402A Expired FR2119692A5 (en) 1970-12-23 1971-12-23

Country Status (7)

Country Link
US (1) US3745342A (en)
JP (1) JPS568140Y2 (en)
CA (1) CA957787A (en)
DE (1) DE2161027C3 (en)
FR (1) FR2119692A5 (en)
GB (1) GB1375995A (en)
NL (1) NL7018701A (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2466096A1 (en) * 1979-09-19 1981-03-27 Philips Nv ELECTRON SOURCE WITH A PROFILE THREAD

Families Citing this family (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4115720A (en) * 1977-03-31 1978-09-19 Rca Corporation Device having thermionic cathode heated by field-emitted electrons
US4388560A (en) * 1981-05-26 1983-06-14 Hughes Aircraft Company Filament dispenser cathode
US4560897A (en) * 1983-06-06 1985-12-24 The United States Of America As Represented By The Department Of Energy Rigid indented cylindrical cathode for X-ray tube
NL8302275A (en) * 1983-06-28 1985-01-16 Philips Nv ELECTRON RADIUS WITH METAL WIRE SOURCE.
JPH0810637B2 (en) * 1990-08-04 1996-01-31 三菱電機株式会社 High frequency electron gun device
US6091187A (en) * 1998-04-08 2000-07-18 International Business Machines Corporation High emittance electron source having high illumination uniformity

Family Cites Families (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE1028244B (en) * 1954-09-18 1958-04-17 Zeiss Carl Fa Method and device for generating glowing electrons in electron beam devices

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2466096A1 (en) * 1979-09-19 1981-03-27 Philips Nv ELECTRON SOURCE WITH A PROFILE THREAD

Also Published As

Publication number Publication date
DE2161027B2 (en) 1979-03-08
JPS568140Y2 (en) 1981-02-23
US3745342A (en) 1973-07-10
JPS5380361U (en) 1978-07-04
CA957787A (en) 1974-11-12
DE2161027A1 (en) 1972-07-13
DE2161027C3 (en) 1979-11-15
NL7018701A (en) 1972-06-27
GB1375995A (en) 1974-12-04

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Legal Events

Date Code Title Description
ST Notification of lapse