FR2193248B1 - - Google Patents

Info

Publication number
FR2193248B1
FR2193248B1 FR7326053A FR7326053A FR2193248B1 FR 2193248 B1 FR2193248 B1 FR 2193248B1 FR 7326053 A FR7326053 A FR 7326053A FR 7326053 A FR7326053 A FR 7326053A FR 2193248 B1 FR2193248 B1 FR 2193248B1
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
FR7326053A
Other languages
French (fr)
Other versions
FR2193248A1 (nl
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.)
Jeol Ltd
Original Assignee
Jeol Ltd
Nihon Denshi KK
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 Jeol Ltd, Nihon Denshi KK filed Critical Jeol Ltd
Publication of FR2193248A1 publication Critical patent/FR2193248A1/fr
Application granted granted Critical
Publication of FR2193248B1 publication Critical patent/FR2193248B1/fr
Expired legal-status Critical Current

Links

Classifications

    • 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
    • H01J3/021—Electron guns using a field emission, photo emission, or secondary emission electron source
FR7326053A 1972-07-17 1973-07-16 Expired FR2193248B1 (nl)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP7148972A JPS557656B2 (nl) 1972-07-17 1972-07-17

Publications (2)

Publication Number Publication Date
FR2193248A1 FR2193248A1 (nl) 1974-02-15
FR2193248B1 true FR2193248B1 (nl) 1977-02-18

Family

ID=13462110

Family Applications (1)

Application Number Title Priority Date Filing Date
FR7326053A Expired FR2193248B1 (nl) 1972-07-17 1973-07-16

Country Status (4)

Country Link
US (1) US3887839A (nl)
JP (1) JPS557656B2 (nl)
FR (1) FR2193248B1 (nl)
GB (1) GB1431069A (nl)

Families Citing this family (10)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4337422A (en) * 1980-03-17 1982-06-29 The Perkin-Elmer Corporation Field emission gun with noise compensation
JPS5818101A (ja) * 1981-07-27 1983-02-02 Nippon Denzai Kogyo Kenkyusho:Kk タツチセンサ−
US5025196A (en) * 1986-06-02 1991-06-18 Canon Kabushiki Kaisha Image forming device with beam current control
JPS6440219A (en) * 1987-08-04 1989-02-10 Fanuc Ltd Machining start hole measuring device
JP3131339B2 (ja) * 1993-12-22 2001-01-31 三菱電機株式会社 陰極、陰極線管および陰極線管の作動方法
JPH08212952A (ja) * 1995-02-06 1996-08-20 Natl Res Inst For Metals レーザー照射型電子銃
EP1426997A1 (en) * 2002-12-06 2004-06-09 ICT, Integrated Circuit Testing Gesellschaft für Halbleiterprüftechnik Mbh Field emitter beam source and method for controlling a beam current
EP1760761B1 (en) * 2005-09-05 2017-10-18 ICT, Integrated Circuit Testing Gesellschaft für Halbleiterprüftechnik mbH Charged particle beam emitting device and method for operating a charged particle beam emitting device
EP2365511B1 (en) 2010-03-10 2013-05-08 ICT Integrated Circuit Testing Gesellschaft für Halbleiterprüftechnik mbH Feedback loop for emitter flash cleaning
US8487534B2 (en) * 2010-03-31 2013-07-16 General Electric Company Pierce gun and method of controlling thereof

Family Cites Families (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE878685C (de) * 1951-03-28 1953-06-05 Wilhelm Dipl-Chem Dr Stuermer Verfahren zur Abbildung von Objekten mit dem Feldemissionsmikroskop
US3361928A (en) * 1962-11-28 1968-01-02 Hitachi Ltd Transformers having a plurality of secondary windings and charged particle sources of double pulsing system utilizing such transformers
US3775637A (en) * 1971-09-15 1973-11-27 Rca Corp Cathode ray display intensity control circuit
US3786305A (en) * 1972-05-15 1974-01-15 Hitachi Ltd Field emission electron gun
US3794878A (en) * 1972-12-11 1974-02-26 Ford Motor Co Electron beam regulator

Also Published As

Publication number Publication date
JPS557656B2 (nl) 1980-02-27
US3887839A (en) 1975-06-03
DE2336155A1 (de) 1974-02-07
FR2193248A1 (nl) 1974-02-15
DE2336155B2 (de) 1975-10-16
GB1431069A (en) 1976-04-07
JPS4929766A (nl) 1974-03-16

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Legal Events

Date Code Title Description
ST Notification of lapse