ES364237A1 - Metodo de fabricacion de un catodo indirectamente calenta- do. - Google Patents

Metodo de fabricacion de un catodo indirectamente calenta- do.

Info

Publication number
ES364237A1
ES364237A1 ES364237A ES364237A ES364237A1 ES 364237 A1 ES364237 A1 ES 364237A1 ES 364237 A ES364237 A ES 364237A ES 364237 A ES364237 A ES 364237A ES 364237 A1 ES364237 A1 ES 364237A1
Authority
ES
Spain
Prior art keywords
layer
filament
cathode
porous
support
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
ES364237A
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 ES364237A1 publication Critical patent/ES364237A1/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
    • H01J1/22—Heaters
    • 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
    • H01J1/24—Insulating layer or body located between heater and emissive material

Landscapes

  • Solid Thermionic Cathode (AREA)
  • Resistance Heating (AREA)
ES364237A 1966-12-23 1969-02-28 Metodo de fabricacion de un catodo indirectamente calenta- do. Expired ES364237A1 (es)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
NL6618058A NL157743B (nl) 1966-12-23 1966-12-23 Indirect verhitte kathode.

Publications (1)

Publication Number Publication Date
ES364237A1 true ES364237A1 (es) 1971-02-16

Family

ID=19798531

Family Applications (1)

Application Number Title Priority Date Filing Date
ES364237A Expired ES364237A1 (es) 1966-12-23 1969-02-28 Metodo de fabricacion de un catodo indirectamente calenta- do.

Country Status (9)

Country Link
AT (1) AT278183B (nl)
BE (1) BE708387A (nl)
CH (1) CH469346A (nl)
DK (1) DK118414B (nl)
ES (1) ES364237A1 (nl)
FR (1) FR1549006A (nl)
GB (1) GB1188668A (nl)
NL (1) NL157743B (nl)
NO (1) NO121225B (nl)

Families Citing this family (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US5118983A (en) * 1989-03-24 1992-06-02 Mitsubishi Denki Kabushiki Kaisha Thermionic electron source
DE4026301A1 (de) * 1990-08-20 1992-02-27 Siemens Ag Elektronenemitter einer roentgenroehre

Also Published As

Publication number Publication date
CH469346A (de) 1969-02-28
NO121225B (nl) 1971-02-01
FR1549006A (nl) 1968-12-06
DE1614295B2 (de) 1976-02-12
NL157743B (nl) 1978-08-15
AT278183B (de) 1970-01-26
GB1188668A (en) 1970-04-22
DE1614295A1 (de) 1970-08-20
NL6618058A (nl) 1968-06-24
BE708387A (nl) 1968-06-21
DK118414B (da) 1970-08-17

Similar Documents

Publication Publication Date Title
US2543728A (en) Incandescible cathode
US2842706A (en) Cold cathode vacuum tube
US3558966A (en) Directly heated dispenser cathode
US2698913A (en) Cathode structure
US2741717A (en) Dispenser type cathode having gettercoated parts
US2477601A (en) Directly heated cathode
US2847605A (en) Electrode for fluorescent lamps
ES364237A1 (es) Metodo de fabricacion de un catodo indirectamente calenta- do.
GB1020233A (en) Improvements in or relating to hollow cathode structures
GB1057909A (en) Method of manufacturing cathodes for electron tubes
US3307974A (en) Method of forming thermionic cathodes
US2808530A (en) Cathode for electrical discharge devices
US3161540A (en) Process of manufacturing insulated heater wire and article
US3656020A (en) Thermionic cathode comprising mixture of barium oxide, calcium oxide and lithium oxide
US2764511A (en) Filamentary cathode and method of making same
US2858470A (en) Cathode for electron discharge devices
US2104784A (en) Electron discharge device
US1871363A (en) Electrode construction
US2066081A (en) Phototube
US3534455A (en) Method of making thermionic cathodes
GB1142728A (en) Improved thermionic cathodes for electron discharge devices
US2873218A (en) Method of making an electron emitter
US3015560A (en) Method of fabricating cathode for electron discharge devices
US3419744A (en) Integral laminated cathode and support structure
US1842215A (en) Electrode for gaseous discharge devices