NL158647B - Oxydkathode voor een elektrische ontladingsbuis. - Google Patents

Oxydkathode voor een elektrische ontladingsbuis.

Info

Publication number
NL158647B
NL158647B NL7307855.A NL7307855A NL158647B NL 158647 B NL158647 B NL 158647B NL 7307855 A NL7307855 A NL 7307855A NL 158647 B NL158647 B NL 158647B
Authority
NL
Netherlands
Prior art keywords
oxyd
cathod
electric discharge
discharge tube
tube
Prior art date
Application number
NL7307855.A
Other languages
English (en)
Dutch (nl)
Other versions
NL7307855A (cg-RX-API-DMAC7.html
Inventor
Renier Gertruda Hubertu Coenen
Karel Martin Aubert Leummens
Erland Charles Justus Swaving
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
Priority to NL7307855.A priority Critical patent/NL158647B/xx
Priority to DE2425337A priority patent/DE2425337C3/de
Priority to CA201,140A priority patent/CA1008914A/en
Priority to US474587A priority patent/US3911312A/en
Priority to AU69711/74A priority patent/AU485613B2/en
Priority to JP6198274A priority patent/JPS5621212B2/ja
Priority to IT68747/74A priority patent/IT1014280B/it
Priority to GB2440374A priority patent/GB1470318A/en
Priority to ES426956A priority patent/ES426956A1/es
Priority to FR7419481A priority patent/FR2232833B1/fr
Publication of NL7307855A publication Critical patent/NL7307855A/xx
Publication of NL158647B publication Critical patent/NL158647B/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
    • H01J1/20—Cathodes heated indirectly by an electric current; Cathodes heated by electron or ion bombardment
    • H01J1/26—Supports for the emissive material
NL7307855.A 1973-06-06 1973-06-06 Oxydkathode voor een elektrische ontladingsbuis. NL158647B (nl)

Priority Applications (10)

Application Number Priority Date Filing Date Title
NL7307855.A NL158647B (nl) 1973-06-06 1973-06-06 Oxydkathode voor een elektrische ontladingsbuis.
DE2425337A DE2425337C3 (de) 1973-06-06 1974-05-25 Oxidkathode für eine elektrische Entladungsröhre
CA201,140A CA1008914A (en) 1973-06-06 1974-05-29 Oxide cathode for an electric discharge tube
US474587A US3911312A (en) 1973-06-06 1974-05-30 Oxide cathode for an electric discharge tube
AU69711/74A AU485613B2 (en) 1973-06-06 1974-06-03 Oxide cathode foran electric discharge tube
JP6198274A JPS5621212B2 (cg-RX-API-DMAC7.html) 1973-06-06 1974-06-03
IT68747/74A IT1014280B (it) 1973-06-06 1974-06-03 Catodo all ossido per tubi a scari ca elettrica
GB2440374A GB1470318A (en) 1973-06-06 1974-06-03 Cathode for electronic tube
ES426956A ES426956A1 (es) 1973-06-06 1974-06-04 Perfeccionamientos introducidos en catodos de oxidos para tubos de descarga electrica.
FR7419481A FR2232833B1 (cg-RX-API-DMAC7.html) 1973-06-06 1974-06-06

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 (2)

Publication Number Publication Date
NL7307855A NL7307855A (cg-RX-API-DMAC7.html) 1974-12-10
NL158647B true NL158647B (nl) 1978-11-15

Family

ID=19819020

Family Applications (1)

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

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
ES426956A1 (es) 1976-08-01
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
IT1014280B (it) 1977-04-20
DE2425337B2 (de) 1978-04-27

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Legal Events

Date Code Title Description
V1 Lapsed because of non-payment of the annual fee
NL80 Information provided on patent owner name for an already discontinued patent

Owner name: PHILIPS