ES426956A1 - Perfeccionamientos introducidos en catodos de oxidos para tubos de descarga electrica. - Google Patents

Perfeccionamientos introducidos en catodos de oxidos para tubos de descarga electrica.

Info

Publication number
ES426956A1
ES426956A1 ES426956A ES426956A ES426956A1 ES 426956 A1 ES426956 A1 ES 426956A1 ES 426956 A ES426956 A ES 426956A ES 426956 A ES426956 A ES 426956A ES 426956 A1 ES426956 A1 ES 426956A1
Authority
ES
Spain
Prior art keywords
electric discharge
discharge tube
oxide cathode
oxide
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
ES426956A
Other languages
English (en)
Spanish (es)
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 ES426956A1 publication Critical patent/ES426956A1/es
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
    • H01J1/26—Supports for the emissive material

Landscapes

  • Solid Thermionic Cathode (AREA)
  • Compounds Of Alkaline-Earth Elements, Aluminum Or Rare-Earth Metals (AREA)
ES426956A 1973-06-06 1974-06-04 Perfeccionamientos introducidos en catodos de oxidos para tubos de descarga electrica. Expired ES426956A1 (es)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
NL7307855.A NL158647B (nl) 1973-06-06 1973-06-06 Oxydkathode voor een elektrische ontladingsbuis.

Publications (1)

Publication Number Publication Date
ES426956A1 true ES426956A1 (es) 1976-08-01

Family

ID=19819020

Family Applications (1)

Application Number Title Priority Date Filing Date
ES426956A Expired ES426956A1 (es) 1973-06-06 1974-06-04 Perfeccionamientos introducidos en catodos de oxidos para tubos de descarga electrica.

Country Status (9)

Country Link
US (1) US3911312A (cg-RX-API-DMAC7.html)
JP (1) JPS5621212B2 (cg-RX-API-DMAC7.html)
CA (1) CA1008914A (cg-RX-API-DMAC7.html)
DE (1) DE2425337C3 (cg-RX-API-DMAC7.html)
ES (1) ES426956A1 (cg-RX-API-DMAC7.html)
FR (1) FR2232833B1 (cg-RX-API-DMAC7.html)
GB (1) GB1470318A (cg-RX-API-DMAC7.html)
IT (1) IT1014280B (cg-RX-API-DMAC7.html)
NL (1) NL158647B (cg-RX-API-DMAC7.html)

Families Citing this family (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS51115765A (en) * 1975-04-03 1976-10-12 Sony Corp Electron tube cathode apparatus
JPS5351798U (cg-RX-API-DMAC7.html) * 1976-10-02 1978-05-02
EP1385190A1 (en) * 2002-07-24 2004-01-28 Thomson Licensing S.A. Oxide cathode for electron gun with a differentially doped metallic substrate
EP1535298B1 (en) * 2002-07-24 2006-06-07 Thomson Licensing Oxide cathode for electron gun with a differentially doped metallic substrate.

Family Cites Families (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2179110A (en) * 1938-08-27 1939-11-07 Rca Corp Cathode for electron discharge devices
US2192491A (en) * 1939-02-01 1940-03-05 Rca Corp Cathode for electron discharge devices
FR1107589A (fr) * 1954-06-18 1956-01-03 Csf Perfectionnements aux supports de cathodes à oxydes
FR1152810A (fr) * 1955-06-29 1958-02-26 Philips Nv Cathode à oxydes et procédé de préparation d'alliages de nickel pour leur couchede fond
NL101694C (cg-RX-API-DMAC7.html) * 1959-03-06
US3099577A (en) * 1960-08-24 1963-07-30 Philips Corp Method of manufacturing oxide cathodes and cathodes manufactured by such methods
GB1076229A (en) * 1963-10-08 1967-07-19 Sylvania Electric Prod Cathodes
US3351486A (en) * 1966-11-23 1967-11-07 Sylvania Electric Prod Cathodes

Also Published As

Publication number Publication date
FR2232833A1 (cg-RX-API-DMAC7.html) 1975-01-03
JPS5023554A (cg-RX-API-DMAC7.html) 1975-03-13
NL7307855A (cg-RX-API-DMAC7.html) 1974-12-10
JPS5621212B2 (cg-RX-API-DMAC7.html) 1981-05-18
DE2425337C3 (de) 1981-06-25
FR2232833B1 (cg-RX-API-DMAC7.html) 1978-12-29
GB1470318A (en) 1977-04-14
US3911312A (en) 1975-10-07
AU6971174A (en) 1975-12-04
DE2425337A1 (de) 1975-01-02
CA1008914A (en) 1977-04-19
NL158647B (nl) 1978-11-15
IT1014280B (it) 1977-04-20
DE2425337B2 (de) 1978-04-27

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ES426956A1 (es) Perfeccionamientos introducidos en catodos de oxidos para tubos de descarga electrica.
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