NL7207276A - - Google Patents

Info

Publication number
NL7207276A
NL7207276A NL7207276A NL7207276A NL7207276A NL 7207276 A NL7207276 A NL 7207276A NL 7207276 A NL7207276 A NL 7207276A NL 7207276 A NL7207276 A NL 7207276A NL 7207276 A NL7207276 A NL 7207276A
Authority
NL
Netherlands
Application number
NL7207276A
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 filed Critical
Priority to NL7207276A priority Critical patent/NL7207276A/xx
Priority to DE2325274A priority patent/DE2325274C3/de
Priority to CA172,128A priority patent/CA990777A/en
Priority to US00363877A priority patent/US3823337A/en
Priority to CH755273A priority patent/CH554071A/xx
Priority to GB2515573A priority patent/GB1378138A/en
Priority to SE7307547A priority patent/SE382885B/xx
Priority to JP5875873A priority patent/JPS555660B2/ja
Priority to FR7319646A priority patent/FR2186722B1/fr
Publication of NL7207276A publication Critical patent/NL7207276A/xx

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
    • H01J1/15—Cathodes heated directly by an electric current
    • 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
    • H01J1/14—Solid thermionic cathodes characterised by the material
    • H01J1/148—Solid thermionic cathodes characterised by the material with compounds having metallic conductive properties, e.g. lanthanum boride, as an emissive material
NL7207276A 1972-05-30 1972-05-30 NL7207276A (fr)

Priority Applications (9)

Application Number Priority Date Filing Date Title
NL7207276A NL7207276A (fr) 1972-05-30 1972-05-30
DE2325274A DE2325274C3 (de) 1972-05-30 1973-05-18 Direkt heizbare Kathode für eine elektrische Entladungsröhre
CA172,128A CA990777A (en) 1972-05-30 1973-05-24 Directly heated cathode
US00363877A US3823337A (en) 1972-05-30 1973-05-25 Cathode for an electric discharge tube
CH755273A CH554071A (de) 1972-05-30 1973-05-25 Kathode fuer eine elektrische entladungsroehre.
GB2515573A GB1378138A (en) 1972-05-30 1973-05-25 Thermionic cathode for an electric discharge tube
SE7307547A SE382885B (sv) 1972-05-30 1973-05-28 Katod for ett elektriskt urladdningsror
JP5875873A JPS555660B2 (fr) 1972-05-30 1973-05-28
FR7319646A FR2186722B1 (fr) 1972-05-30 1973-05-30

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
NL7207276A NL7207276A (fr) 1972-05-30 1972-05-30

Publications (1)

Publication Number Publication Date
NL7207276A true NL7207276A (fr) 1973-12-04

Family

ID=19816154

Family Applications (1)

Application Number Title Priority Date Filing Date
NL7207276A NL7207276A (fr) 1972-05-30 1972-05-30

Country Status (9)

Country Link
US (1) US3823337A (fr)
JP (1) JPS555660B2 (fr)
CA (1) CA990777A (fr)
CH (1) CH554071A (fr)
DE (1) DE2325274C3 (fr)
FR (1) FR2186722B1 (fr)
GB (1) GB1378138A (fr)
NL (1) NL7207276A (fr)
SE (1) SE382885B (fr)

Families Citing this family (12)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4019081A (en) * 1974-10-25 1977-04-19 Bbc Brown Boveri & Company Limited Reaction cathode
JPS607335B2 (ja) * 1974-11-29 1985-02-23 カナデイアン、パテンツ、アンド、デイベラツプメント、リミテツド 熱電子放射陰極
US4055780A (en) * 1975-04-10 1977-10-25 National Institute For Researches In Inorganic Materials Thermionic emission cathode having a tip of a single crystal of lanthanum hexaboride
US4009409A (en) * 1975-09-02 1977-02-22 Gte Sylvania Incorporated Fast warmup cathode and method of making same
US4054946A (en) * 1976-09-28 1977-10-18 Bell Telephone Laboratories, Incorporated Electron source of a single crystal of lanthanum hexaboride emitting surface of (110) crystal plane
US4137476A (en) * 1977-05-18 1979-01-30 Denki Kagaku Kogyo Kabushiki Kaisha Thermionic cathode
US4168565A (en) * 1977-05-18 1979-09-25 Denki Kagaku Kogyo Kabushiki Kaisha Method for manufacturing thermionic cathode
US4258283A (en) * 1978-08-31 1981-03-24 Balzers Aktiengesellschaft Fur Hochvakuumtechnik Und Dunne Schichten Cathode for electron emission
FR2445605A1 (fr) * 1978-12-27 1980-07-25 Thomson Csf Cathode a chauffage direct et tube electronique haute frequence comportant une telle cathode
JPS57196443A (en) * 1981-05-29 1982-12-02 Denki Kagaku Kogyo Kk Manufacture of hot cathode
DE69409306T2 (de) * 1993-07-29 1998-07-30 Nec Corp Thermisch emittierende Kathode, Herstellungsverfahren einer solchen thermisch emittierende Kathode und Elektronenstrahl-Gerät
JP2010157490A (ja) * 2008-12-02 2010-07-15 Canon Inc 電子放出素子および該電子放出素子を用いた表示パネル

Also Published As

Publication number Publication date
US3823337A (en) 1974-07-09
JPS555660B2 (fr) 1980-02-08
JPS4944662A (fr) 1974-04-26
DE2325274A1 (de) 1973-12-13
SE382885B (sv) 1976-02-16
CA990777A (en) 1976-06-08
GB1378138A (en) 1974-12-18
FR2186722A1 (fr) 1974-01-11
CH554071A (de) 1974-09-13
FR2186722B1 (fr) 1976-09-17
DE2325274B2 (de) 1980-10-23
DE2325274C3 (de) 1981-07-09

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Legal Events

Date Code Title Description
BV The patent application has lapsed