FR2297490A1 - Procede pour la realisation d'une cathode a reserve moulee et cathode a reserve ainsi realisee - Google Patents

Procede pour la realisation d'une cathode a reserve moulee et cathode a reserve ainsi realisee

Info

Publication number
FR2297490A1
FR2297490A1 FR7600399A FR7600399A FR2297490A1 FR 2297490 A1 FR2297490 A1 FR 2297490A1 FR 7600399 A FR7600399 A FR 7600399A FR 7600399 A FR7600399 A FR 7600399A FR 2297490 A1 FR2297490 A1 FR 2297490A1
Authority
FR
France
Prior art keywords
reserve cathode
cathode
realization
molded
reserve
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.)
Granted
Application number
FR7600399A
Other languages
English (en)
Other versions
FR2297490B1 (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 FR2297490A1 publication Critical patent/FR2297490A1/fr
Application granted granted Critical
Publication of FR2297490B1 publication Critical patent/FR2297490B1/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
    • H01J1/20—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

Landscapes

  • Engineering & Computer Science (AREA)
  • Manufacturing & Machinery (AREA)
  • Solid Thermionic Cathode (AREA)
FR7600399A 1975-01-09 1976-01-09 Procede pour la realisation d'une cathode a reserve moulee et cathode a reserve ainsi realisee Granted FR2297490A1 (fr)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
NL7500248A NL7500248A (nl) 1975-01-09 1975-01-09 Werkwijze voor het vervaardigen van een geperste naleveringskathode en naleveringskathode ver- vaardigd volgens deze werkwijze.

Publications (2)

Publication Number Publication Date
FR2297490A1 true FR2297490A1 (fr) 1976-08-06
FR2297490B1 FR2297490B1 (fr) 1980-03-28

Family

ID=19822961

Family Applications (1)

Application Number Title Priority Date Filing Date
FR7600399A Granted FR2297490A1 (fr) 1975-01-09 1976-01-09 Procede pour la realisation d'une cathode a reserve moulee et cathode a reserve ainsi realisee

Country Status (5)

Country Link
JP (1) JPS5193659A (fr)
CA (1) CA1046131A (fr)
FR (1) FR2297490A1 (fr)
GB (1) GB1522387A (fr)
NL (1) NL7500248A (fr)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0091161A1 (fr) * 1982-04-01 1983-10-12 Koninklijke Philips Electronics N.V. Procédé de fabrication d'une cathode à réserve et cathode à réserve fabriquée selon ce procédé
EP0685868A1 (fr) * 1994-05-31 1995-12-06 Nec Corporation Dispositif de cathode et tube à électrons comportant ce dispositif

Families Citing this family (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB2173943A (en) * 1985-04-18 1986-10-22 Noblelight Limited Improvements in and relating to cathodes
FR2840450A1 (fr) * 2002-05-31 2003-12-05 Thomson Licensing Sa Corps cathodo-emissif pour cathode impregnee de tube electronique

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0091161A1 (fr) * 1982-04-01 1983-10-12 Koninklijke Philips Electronics N.V. Procédé de fabrication d'une cathode à réserve et cathode à réserve fabriquée selon ce procédé
EP0685868A1 (fr) * 1994-05-31 1995-12-06 Nec Corporation Dispositif de cathode et tube à électrons comportant ce dispositif
US5757115A (en) * 1994-05-31 1998-05-26 Nec Corporation Cathode member and electron tube having the cathode member mounted thereon

Also Published As

Publication number Publication date
JPS5193659A (en) 1976-08-17
DE2558784A1 (de) 1976-07-15
FR2297490B1 (fr) 1980-03-28
GB1522387A (en) 1978-08-23
NL7500248A (nl) 1976-07-13
DE2558784B2 (de) 1977-05-26
JPS5616499B2 (fr) 1981-04-16
CA1046131A (fr) 1979-01-09

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Legal Events

Date Code Title Description
ST Notification of lapse