NO121225B - - Google Patents

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Publication number
NO121225B
NO121225B NO17108567A NO17108567A NO121225B NO 121225 B NO121225 B NO 121225B NO 17108567 A NO17108567 A NO 17108567A NO 17108567 A NO17108567 A NO 17108567A NO 121225 B NO121225 B NO 121225B
Authority
NO
Norway
Prior art keywords
layer
oxide
dark
insulating
cathode
Prior art date
Application number
NO17108567A
Other languages
English (en)
Norwegian (no)
Inventor
J Blatter
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
Publication of NO121225B publication Critical patent/NO121225B/no

Links

Classifications

    • HELECTRICITY
    • H01ELECTRIC ELEMENTS
    • H01JELECTRIC DISCHARGE TUBES OR DISCHARGE LAMPS
    • H01J1/00Details 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
    • H01J1/02Main electrodes
    • H01J1/13Solid thermionic cathodes
    • H01J1/20Cathodes heated indirectly by an electric current; Cathodes heated by electron or ion bombardment
    • H01J1/22Heaters
    • HELECTRICITY
    • H01ELECTRIC ELEMENTS
    • H01JELECTRIC DISCHARGE TUBES OR DISCHARGE LAMPS
    • H01J1/00Details 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
    • H01J1/02Main electrodes
    • H01J1/13Solid thermionic cathodes
    • H01J1/20Cathodes heated indirectly by an electric current; Cathodes heated by electron or ion bombardment
    • H01J1/24Insulating layer or body located between heater and emissive material

Landscapes

  • Solid Thermionic Cathode (AREA)
  • Resistance Heating (AREA)
NO17108567A 1966-12-23 1967-12-20 NO121225B (fr)

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
NO121225B true NO121225B (fr) 1971-02-01

Family

ID=19798531

Family Applications (1)

Application Number Title Priority Date Filing Date
NO17108567A NO121225B (fr) 1966-12-23 1967-12-20

Country Status (9)

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

Families Citing this family (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0389228B1 (fr) * 1989-03-24 1995-01-25 Mitsubishi Denki Kabushiki Kaisha Dispositif fonctionnant à haute température
DE4026301A1 (de) * 1990-08-20 1992-02-27 Siemens Ag Elektronenemitter einer roentgenroehre

Also Published As

Publication number Publication date
NL6618058A (fr) 1968-06-24
FR1549006A (fr) 1968-12-06
CH469346A (de) 1969-02-28
DK118414B (da) 1970-08-17
NL157743B (nl) 1978-08-15
DE1614295B2 (de) 1976-02-12
ES364237A1 (es) 1971-02-16
AT278183B (de) 1970-01-26
BE708387A (fr) 1968-06-21
DE1614295A1 (de) 1970-08-20
GB1188668A (en) 1970-04-22

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