DE3173470D1 - Thermoelectronic cathode - Google Patents

Thermoelectronic cathode

Info

Publication number
DE3173470D1
DE3173470D1 DE8181401713T DE3173470T DE3173470D1 DE 3173470 D1 DE3173470 D1 DE 3173470D1 DE 8181401713 T DE8181401713 T DE 8181401713T DE 3173470 T DE3173470 T DE 3173470T DE 3173470 D1 DE3173470 D1 DE 3173470D1
Authority
DE
Germany
Prior art keywords
thermoelectronic cathode
thermoelectronic
cathode
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
DE8181401713T
Other languages
German (de)
English (en)
Inventor
Pierre Palluel
Arvind Shroff
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.)
Thales SA
Original Assignee
Thomson CSF SA
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
Family has litigation
First worldwide family litigation filed litigation Critical https://patents.darts-ip.com/?family=9247818&utm_source=google_patent&utm_medium=platform_link&utm_campaign=public_patent_search&patent=DE3173470(D1) "Global patent litigation dataset” by Darts-ip is licensed under a Creative Commons Attribution 4.0 International License.
Application filed by Thomson CSF SA filed Critical Thomson CSF SA
Application granted granted Critical
Publication of DE3173470D1 publication Critical patent/DE3173470D1/de
Expired legal-status Critical Current

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
    • H01J1/20—Cathodes heated indirectly by an electric current; Cathodes heated by electron or ion bombardment
    • H01J1/28—Dispenser-type cathodes, e.g. L-cathode
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01J—ELECTRIC DISCHARGE TUBES OR DISCHARGE LAMPS
    • H01J23/00—Details of transit-time tubes of the types covered by group H01J25/00
    • H01J23/02—Electrodes; Magnetic control means; Screens
    • H01J23/04—Cathodes
DE8181401713T 1980-11-07 1981-10-27 Thermoelectronic cathode Expired DE3173470D1 (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
FR8023884A FR2494035A1 (fr) 1980-11-07 1980-11-07 Cathode thermo-electronique pour tube hyperfrequences et tube incorporant une telle cathode

Publications (1)

Publication Number Publication Date
DE3173470D1 true DE3173470D1 (en) 1986-02-20

Family

ID=9247818

Family Applications (1)

Application Number Title Priority Date Filing Date
DE8181401713T Expired DE3173470D1 (en) 1980-11-07 1981-10-27 Thermoelectronic cathode

Country Status (5)

Country Link
US (1) US4494035A (enExample)
EP (1) EP0052047B2 (enExample)
JP (1) JPS57107534A (enExample)
DE (1) DE3173470D1 (enExample)
FR (1) FR2494035A1 (enExample)

Families Citing this family (15)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH0719530B2 (ja) * 1984-06-29 1995-03-06 株式会社日立製作所 陰極線管
JPH0416344Y2 (enExample) * 1985-07-02 1992-04-13
FR2596198A1 (fr) * 1986-03-19 1987-09-25 Thomson Csf Cathodes pour klystron a faisceaux multiples, klystron comportant de telles cathodes et procede de fabrication de telles cathodes
JPS63236239A (ja) * 1987-03-10 1988-10-03 シーメンス、アクチエンゲゼルシヤフト 放電管用デイスペンサー陰極とその製法
US4810926A (en) * 1987-07-13 1989-03-07 Syracuse University Impregnated thermionic cathode
US5266414A (en) * 1988-03-18 1993-11-30 Varian Associates, Inc. Solid solution matrix cathode
FR2647952A1 (fr) * 1989-05-30 1990-12-07 Thomson Tubes Electroniques Cathode thermoelectronique impregnee pour tube electronique
CH678671A5 (enExample) * 1989-08-22 1991-10-15 Asea Brown Boveri
DE19527723A1 (de) * 1995-07-31 1997-02-06 Philips Patentverwaltung Elektrische Entladungsröhre oder Entladungslampe und Scandat-Vorratskathode
JP3696720B2 (ja) * 1997-07-09 2005-09-21 松下電器産業株式会社 含浸型陰極とその製造方法
JPH11102636A (ja) 1997-09-26 1999-04-13 Matsushita Electron Corp 陰極、陰極の製造方法、受像管
US6495949B1 (en) * 1999-11-03 2002-12-17 Orion Electric Co., Ltd. Electron tube cathode
FR2833406A1 (fr) * 2001-12-10 2003-06-13 Thomson Licensing Sa Cathode pour tube a vide a duree de vie amelioree
CN103311066B (zh) * 2013-06-03 2015-08-19 哈尔滨工业大学 具有内芯的用于航天器自持空心阴极的发射体
CN116387116B (zh) * 2023-03-29 2025-05-30 中国科学院空天信息创新研究院 浸渍型阴极及其制备方法

Family Cites Families (16)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
BE526506A (enExample) * 1953-02-16
NL198428A (enExample) * 1954-06-29
BE543391A (enExample) * 1954-12-06
US3076915A (en) * 1954-12-24 1963-02-05 Egyesuelt Izzolampa Cathode assembly and method of making same
NL272981A (enExample) * 1961-01-02
US3373307A (en) * 1963-11-21 1968-03-12 Philips Corp Dispenser cathode
US3558966A (en) * 1967-03-01 1971-01-26 Semicon Associates Inc Directly heated dispenser cathode
BE759174A (fr) * 1969-11-21 1971-05-19 Philips Nv Cathode a reserve et son procede de realisation
US3842309A (en) * 1970-11-12 1974-10-15 Philips Corp Method of manufacturing a storage cathode and cathode manufactured by said method
US3719856A (en) * 1971-05-19 1973-03-06 O Koppius Impregnants for dispenser cathodes
DE2245717A1 (de) * 1972-09-18 1974-03-28 Patra Patent Treuhand Elektrode mit einem poroesen sinterkoerper
US4165473A (en) * 1976-06-21 1979-08-21 Varian Associates, Inc. Electron tube with dispenser cathode
FR2390825A1 (fr) * 1977-05-13 1978-12-08 Thomson Csf Cathode thermo-ionique a grille incorporee, son procede de fabrication et tube electronique comportant une telle cathode
DE2808134A1 (de) * 1978-02-25 1979-08-30 Licentia Gmbh Vorratskathode
US4310603A (en) * 1978-11-30 1982-01-12 Varian Associates, Inc. Dispenser cathode
JPS5652835A (en) * 1979-10-01 1981-05-12 Hitachi Ltd Impregnated cathode

Also Published As

Publication number Publication date
EP0052047B2 (fr) 1990-05-02
US4494035A (en) 1985-01-15
JPS57107534A (en) 1982-07-05
FR2494035B1 (enExample) 1983-05-13
EP0052047A1 (fr) 1982-05-19
FR2494035A1 (fr) 1982-05-14
EP0052047B1 (fr) 1986-01-08

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Legal Events

Date Code Title Description
8363 Opposition against the patent
8366 Restricted maintained after opposition proceedings
8339 Ceased/non-payment of the annual fee