FR2480496B1 - - Google Patents

Info

Publication number
FR2480496B1
FR2480496B1 FR8107062A FR8107062A FR2480496B1 FR 2480496 B1 FR2480496 B1 FR 2480496B1 FR 8107062 A FR8107062 A FR 8107062A FR 8107062 A FR8107062 A FR 8107062A FR 2480496 B1 FR2480496 B1 FR 2480496B1
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
FR8107062A
Other languages
French (fr)
Other versions
FR2480496A1 (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
Publication of FR2480496A1 publication Critical patent/FR2480496A1/fr
Application granted granted Critical
Publication of FR2480496B1 publication Critical patent/FR2480496B1/fr
Granted 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
    • H01J1/15—Cathodes heated directly by an electric current
FR8107062A 1980-04-14 1981-04-08 Cathode pour tubes electroniques comportant deux corps creux Granted FR2480496A1 (fr)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DE19803014216 DE3014216A1 (de) 1980-04-14 1980-04-14 Gluehkathode fuer eine elektronenroehre

Publications (2)

Publication Number Publication Date
FR2480496A1 FR2480496A1 (fr) 1981-10-16
FR2480496B1 true FR2480496B1 (enrdf_load_stackoverflow) 1984-03-23

Family

ID=6099920

Family Applications (1)

Application Number Title Priority Date Filing Date
FR8107062A Granted FR2480496A1 (fr) 1980-04-14 1981-04-08 Cathode pour tubes electroniques comportant deux corps creux

Country Status (5)

Country Link
JP (1) JPS56160739A (enrdf_load_stackoverflow)
DE (1) DE3014216A1 (enrdf_load_stackoverflow)
FR (1) FR2480496A1 (enrdf_load_stackoverflow)
GB (1) GB2074370B (enrdf_load_stackoverflow)
NL (1) NL8101750A (enrdf_load_stackoverflow)

Families Citing this family (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB8611967D0 (en) * 1986-05-16 1986-10-29 English Electric Valve Co Ltd Directly heated cathodes
JP3762871B2 (ja) * 2001-03-02 2006-04-05 双葉電子工業株式会社 電子管
JP3655281B2 (ja) 2002-12-19 2005-06-02 双葉電子工業株式会社 蛍光発光管
JP2004241159A (ja) 2003-02-03 2004-08-26 Futaba Corp 蛍光発光管

Family Cites Families (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CH174449A (de) * 1934-02-02 1935-01-15 Bbc Brown Boveri & Cie Glühkathode für Entladungsapparate.
GB482471A (en) * 1936-12-10 1938-03-30 Patent Treuhand Ges Fuer Elektrische Gluehlampen Mbh Improvements in heating elements for thermionic cathodes
US3195003A (en) * 1962-11-16 1965-07-13 Westinghouse Electric Corp Electron discharge device
DE1293909B (de) * 1965-11-16 1969-04-30 Philips Patentverwaltung Gluehkathode fuer eine elektrische Entladungsroehre mit einer Waermefalle
DE2732960C2 (de) * 1977-07-21 1982-04-01 Philips Patentverwaltung Gmbh, 2000 Hamburg Glühkathode und Verfahren zu ihrer Herstellung

Also Published As

Publication number Publication date
DE3014216A1 (de) 1981-10-15
JPS56160739A (en) 1981-12-10
FR2480496A1 (fr) 1981-10-16
NL8101750A (nl) 1981-11-02
GB2074370B (en) 1984-03-14
GB2074370A (en) 1981-10-28

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Legal Events

Date Code Title Description
CD Change of name or company name
ST Notification of lapse