FR2069601A5 - - Google Patents

Info

Publication number
FR2069601A5
FR2069601A5 FR7041351A FR7041351A FR2069601A5 FR 2069601 A5 FR2069601 A5 FR 2069601A5 FR 7041351 A FR7041351 A FR 7041351A FR 7041351 A FR7041351 A FR 7041351A FR 2069601 A5 FR2069601 A5 FR 2069601A5
Authority
FR
France
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
FR7041351A
Other languages
French (fr)
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
Application granted granted Critical
Publication of FR2069601A5 publication Critical patent/FR2069601A5/fr
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
    • H01J1/28—Dispenser-type cathodes, e.g. L-cathode
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01J—ELECTRIC DISCHARGE TUBES OR DISCHARGE LAMPS
    • H01J9/00—Apparatus or processes specially adapted for the manufacture, installation, removal, maintenance of electric discharge tubes, discharge lamps, or parts thereof; Recovery of material from discharge tubes or lamps
    • H01J9/02—Manufacture of electrodes or electrode systems
    • H01J9/04—Manufacture of electrodes or electrode systems of thermionic cathodes
    • H01J9/042—Manufacture, activation of the emissive part

Landscapes

  • Engineering & Computer Science (AREA)
  • Manufacturing & Machinery (AREA)
  • Solid Thermionic Cathode (AREA)
FR7041351A 1969-11-21 1970-11-18 Expired FR2069601A5 (nl)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
NL6917538A NL6917538A (nl) 1969-11-21 1969-11-21

Publications (1)

Publication Number Publication Date
FR2069601A5 true FR2069601A5 (nl) 1971-09-03

Family

ID=19808445

Family Applications (1)

Application Number Title Priority Date Filing Date
FR7041351A Expired FR2069601A5 (nl) 1969-11-21 1970-11-18

Country Status (6)

Country Link
BE (1) BE759174A (nl)
CA (1) CA960007A (nl)
DE (1) DE2054698A1 (nl)
FR (1) FR2069601A5 (nl)
GB (1) GB1264087A (nl)
NL (1) NL6917538A (nl)

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0028954A1 (fr) * 1979-11-09 1981-05-20 Thomson-Csf Cathode thermo-ionique, son procédé de fabrication et tube électronique incorporant une telle cathode
EP0052047A1 (fr) * 1980-11-07 1982-05-19 Thomson-Csf Cathode thermo-électronique
FR2683090A1 (fr) * 1991-10-25 1993-04-30 Europ Composants Electron Cathode a reserve et procede de fabrication d'une telle cathode.

Families Citing this family (9)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE2808134A1 (de) * 1978-02-25 1979-08-30 Licentia Gmbh Vorratskathode
DE2822665A1 (de) * 1978-05-05 1979-11-08 Bbc Brown Boveri & Cie Gluehkathodenmaterial
DE2842079A1 (de) * 1978-09-27 1980-04-03 Siemens Ag Vorratskathode, insbesondere metall- kapillar-kathode
JPS58100329A (ja) * 1981-12-11 1983-06-15 Toshiba Corp 電子管用陰極構体
DE3336489A1 (de) * 1983-10-07 1985-04-25 Licentia Patent-Verwaltungs-Gmbh, 6000 Frankfurt Indirekt geheizte vorratskathode
GB2188771B (en) * 1986-04-01 1990-12-19 Ceradyne Inc Dispenser cathode and method of manufacture therefor
GB2196786A (en) * 1986-10-27 1988-05-05 Ceradyne Inc Cathode assembly
KR930007461B1 (ko) * 1991-04-23 1993-08-11 주식회사 금성사 함침형 음극 제조방법
DE4114856A1 (de) * 1991-05-07 1992-11-12 Licentia Gmbh Vorratskathode und verfahren zu deren herstellung

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0028954A1 (fr) * 1979-11-09 1981-05-20 Thomson-Csf Cathode thermo-ionique, son procédé de fabrication et tube électronique incorporant une telle cathode
FR2469792A1 (fr) * 1979-11-09 1981-05-22 Thomson Csf Cathode thermo-ionique, son procede de fabrication et tube electronique incorporant une telle cathode
EP0052047A1 (fr) * 1980-11-07 1982-05-19 Thomson-Csf Cathode thermo-électronique
FR2683090A1 (fr) * 1991-10-25 1993-04-30 Europ Composants Electron Cathode a reserve et procede de fabrication d'une telle cathode.

Also Published As

Publication number Publication date
GB1264087A (nl) 1972-02-16
BE759174A (fr) 1971-05-19
DE2054698A1 (de) 1971-11-18
NL6917538A (nl) 1971-05-25
CA960007A (en) 1974-12-31

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Legal Events

Date Code Title Description
ST Notification of lapse