IT1014280B - Catodo all ossido per tubi a scari ca elettrica - Google Patents

Catodo all ossido per tubi a scari ca elettrica

Info

Publication number
IT1014280B
IT1014280B IT68747/74A IT6874774A IT1014280B IT 1014280 B IT1014280 B IT 1014280B IT 68747/74 A IT68747/74 A IT 68747/74A IT 6874774 A IT6874774 A IT 6874774A IT 1014280 B IT1014280 B IT 1014280B
Authority
IT
Italy
Prior art keywords
electric
exhaust pipes
oxide cathode
cathode
oxide
Prior art date
Application number
IT68747/74A
Other languages
English (en)
Italian (it)
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 IT1014280B publication Critical patent/IT1014280B/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
    • H01J1/20—Cathodes heated indirectly by an electric current; Cathodes heated by electron or ion bombardment
    • H01J1/26—Supports for the emissive material
IT68747/74A 1973-06-06 1974-06-03 Catodo all ossido per tubi a scari ca elettrica IT1014280B (it)

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
IT1014280B true IT1014280B (it) 1977-04-20

Family

ID=19819020

Family Applications (1)

Application Number Title Priority Date Filing Date
IT68747/74A IT1014280B (it) 1973-06-06 1974-06-03 Catodo all ossido per tubi a scari ca elettrica

Country Status (9)

Country Link
US (1) US3911312A (es)
JP (1) JPS5621212B2 (es)
CA (1) CA1008914A (es)
DE (1) DE2425337C3 (es)
ES (1) ES426956A1 (es)
FR (1) FR2232833B1 (es)
GB (1) GB1470318A (es)
IT (1) IT1014280B (es)
NL (1) NL158647B (es)

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 (es) * 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 (es) * 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
JPS5621212B2 (es) 1981-05-18
DE2425337A1 (de) 1975-01-02
GB1470318A (en) 1977-04-14
DE2425337C3 (de) 1981-06-25
ES426956A1 (es) 1976-08-01
FR2232833B1 (es) 1978-12-29
JPS5023554A (es) 1975-03-13
CA1008914A (en) 1977-04-19
FR2232833A1 (es) 1975-01-03
NL158647B (nl) 1978-11-15
NL7307855A (es) 1974-12-10
AU6971174A (en) 1975-12-04
DE2425337B2 (de) 1978-04-27
US3911312A (en) 1975-10-07

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