ES445244A1 - Perfeccionamientos introducidos en un tubo de rayos catodi- cos. - Google Patents

Perfeccionamientos introducidos en un tubo de rayos catodi- cos.

Info

Publication number
ES445244A1
ES445244A1 ES445244A ES445244A ES445244A1 ES 445244 A1 ES445244 A1 ES 445244A1 ES 445244 A ES445244 A ES 445244A ES 445244 A ES445244 A ES 445244A ES 445244 A1 ES445244 A1 ES 445244A1
Authority
ES
Spain
Prior art keywords
cathode
fieldemission
metallic wire
cathodic
tip
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
ES445244A
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.)
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
Publication of ES445244A1 publication Critical patent/ES445244A1/es
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
    • H01J37/073—Electron guns using field emission, photo emission, or secondary emission electron sources
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01J—ELECTRIC DISCHARGE TUBES OR DISCHARGE LAMPS
    • H01J1/00—Details of electrodes, of magnetic control means, of screens, or of the mounting or spacing thereof, common to two or more basic types of discharge tubes or lamps
    • H01J1/02—Main electrodes
    • H01J1/30—Cold cathodes, e.g. field-emissive cathode
    • H01J1/304—Field-emissive cathodes
    • 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
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01J—ELECTRIC DISCHARGE TUBES OR DISCHARGE LAMPS
    • H01J2201/00—Electrodes common to discharge tubes
    • H01J2201/30—Cold cathodes
    • H01J2201/304—Field emission cathodes
    • H01J2201/30446—Field emission cathodes characterised by the emitter material
    • H01J2201/30453—Carbon types
    • H01J2201/30457—Diamond
ES445244A 1975-02-19 1976-02-17 Perfeccionamientos introducidos en un tubo de rayos catodi- cos. Expired ES445244A1 (es)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
NL7501932A NL7501932A (nl) 1975-02-19 1975-02-19 Veldemissiebron.

Publications (1)

Publication Number Publication Date
ES445244A1 true ES445244A1 (es) 1977-06-01

Family

ID=19823210

Family Applications (1)

Application Number Title Priority Date Filing Date
ES445244A Expired ES445244A1 (es) 1975-02-19 1976-02-17 Perfeccionamientos introducidos en un tubo de rayos catodi- cos.

Country Status (8)

Country Link
JP (1) JPS5616942B2 (es)
AU (1) AU1115576A (es)
DE (1) DE2604603A1 (es)
ES (1) ES445244A1 (es)
FR (1) FR2301918A1 (es)
GB (1) GB1527022A (es)
NL (1) NL7501932A (es)
SE (1) SE7601660L (es)

Families Citing this family (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
NL7605820A (nl) * 1976-05-31 1977-12-02 Philips Nv Elektronenstraalbuis met veldemissieelektronen- bron, veldemissieelektronenbron voor een der- gelijke elektronenstraalbuis en werkwijze voor de vervaardiging van een dergelijke veldemis- sieelektronenbron.
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
CN105140088B (zh) * 2015-07-24 2017-10-17 北京航空航天大学 大束流电子束打靶微束斑x射线源的聚焦装置及其使用方法

Family Cites Families (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
NL285235A (es) * 1961-11-08
US3374386A (en) * 1964-11-02 1968-03-19 Field Emission Corp Field emission cathode having tungsten miller indices 100 plane coated with zirconium, hafnium or magnesium on oxygen binder
FR1478071A (fr) * 1965-04-30 1967-04-21 Matsushita Electric Ind Co Ltd Appareil pour former un faisceau d'électrons
US3665241A (en) * 1970-07-13 1972-05-23 Stanford Research Inst Field ionizer and field emission cathode structures and methods of production

Also Published As

Publication number Publication date
JPS5616942B2 (es) 1981-04-20
FR2301918A1 (fr) 1976-09-17
NL7501932A (nl) 1976-08-23
JPS51107756A (es) 1976-09-24
GB1527022A (en) 1978-10-04
DE2604603A1 (de) 1976-09-02
FR2301918B1 (es) 1979-08-31
SE7601660L (sv) 1976-08-19
AU1115576A (en) 1977-09-01

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