IT1087865B - Catodo per tubi elettronici. - Google Patents

Catodo per tubi elettronici.

Info

Publication number
IT1087865B
IT1087865B IT29270/77A IT2927077A IT1087865B IT 1087865 B IT1087865 B IT 1087865B IT 29270/77 A IT29270/77 A IT 29270/77A IT 2927077 A IT2927077 A IT 2927077A IT 1087865 B IT1087865 B IT 1087865B
Authority
IT
Italy
Prior art keywords
cathode
electronic tubes
tubes
electronic
Prior art date
Application number
IT29270/77A
Other languages
English (en)
Original Assignee
Philips 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 Nv filed Critical Philips Nv
Application granted granted Critical
Publication of IT1087865B publication Critical patent/IT1087865B/it

Links

Classifications

    • 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
    • H01J1/13—Solid thermionic cathodes
    • 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
    • H01J1/13—Solid thermionic cathodes
    • H01J1/20—Cathodes heated indirectly by an electric current; Cathodes heated by electron or ion bombardment
    • H01J1/26—Supports for the emissive material
IT29270/77A 1976-11-05 1977-11-02 Catodo per tubi elettronici. IT1087865B (it)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DE2650656A DE2650656B2 (de) 1976-11-05 1976-11-05 Kathode für Elektronenröhren

Publications (1)

Publication Number Publication Date
IT1087865B true IT1087865B (it) 1985-06-04

Family

ID=5992493

Family Applications (1)

Application Number Title Priority Date Filing Date
IT29270/77A IT1087865B (it) 1976-11-05 1977-11-02 Catodo per tubi elettronici.

Country Status (9)

Country Link
US (1) US4250429A (it)
JP (1) JPS5357963A (it)
CA (1) CA1091748A (it)
DE (1) DE2650656B2 (it)
ES (1) ES463795A1 (it)
FR (1) FR2370355A1 (it)
GB (1) GB1571142A (it)
IT (1) IT1087865B (it)
NL (1) NL7711979A (it)

Families Citing this family (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4487589A (en) * 1981-06-22 1984-12-11 General Electric Company Method of preparing electron emissive coatings for electric discharge devices
US4415835A (en) * 1981-06-22 1983-11-15 General Electric Company Electron emissive coatings for electric discharge devices
US4691220A (en) * 1983-10-07 1987-09-01 American Telephone And Telegraph Company, At&T Bell Laboratories Radial high voltage bidirectional switch structure with concavo-concave shaped semiconductor regions
GB2192751B (en) * 1986-07-14 1991-02-13 Denki Kagaku Kogyo Kk Method of making a thermionic cathode structure.
DE4026301A1 (de) * 1990-08-20 1992-02-27 Siemens Ag Elektronenemitter einer roentgenroehre
US6054801A (en) * 1998-02-27 2000-04-25 Regents, University Of California Field emission cathode fabricated from porous carbon foam material
EP1744343B1 (en) * 2005-07-14 2009-12-30 LightLab Sweden AB Carbon based field emission cathode and method of manufacturing the same
JP2017107816A (ja) * 2015-12-11 2017-06-15 株式会社堀場エステック 熱電子放出用フィラメント、四重極質量分析計、及び残留ガス分析方法

Family Cites Families (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE1283401B (de) * 1965-12-23 1968-11-21 Siemens Ag Indirekt geheizte Kathode fuer elektrische Entladungsgefaesse
DE1283403B (de) * 1966-08-05 1968-11-21 Siemens Ag Mittelbar geheizte Vorratskathode fuer elektrische Entladungsgefaesse
DE1614686B1 (de) * 1967-12-19 1971-03-11 Siemens Ag Mittelbar geheizte vorratskathode auf thorium-basis
DE1764887A1 (de) * 1968-08-26 1971-10-28 Siemens Ag Verfahren zum Impraegnieren eines poroesen Kohlekoerpers mit Thoriumoxid einer mittelbar geheizten Vorratskathode auf Thorium-Basis
JPS516339B1 (it) * 1971-02-03 1976-02-27
DE2453204A1 (de) * 1974-11-09 1976-05-13 Philips Patentverwaltung Verfahren zum herstellen eines ganz oder teilweise poroesen koerpers aus glasartigem kohlenstoff

Also Published As

Publication number Publication date
ES463795A1 (es) 1978-06-16
DE2650656C3 (it) 1979-05-17
US4250429A (en) 1981-02-10
DE2650656A1 (de) 1978-05-11
JPS5357963A (en) 1978-05-25
FR2370355A1 (fr) 1978-06-02
JPS568973B2 (it) 1981-02-26
NL7711979A (nl) 1978-05-09
FR2370355B1 (it) 1980-02-01
GB1571142A (en) 1980-07-09
CA1091748A (en) 1980-12-16
DE2650656B2 (de) 1978-09-07

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