EP1868221A3 - Verfahren zur Herstellung einer Kathode für Kathodenstrahlröhren - Google Patents

Verfahren zur Herstellung einer Kathode für Kathodenstrahlröhren Download PDF

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Publication number
EP1868221A3
EP1868221A3 EP07106047A EP07106047A EP1868221A3 EP 1868221 A3 EP1868221 A3 EP 1868221A3 EP 07106047 A EP07106047 A EP 07106047A EP 07106047 A EP07106047 A EP 07106047A EP 1868221 A3 EP1868221 A3 EP 1868221A3
Authority
EP
European Patent Office
Prior art keywords
cathode
manufacturing
ray tubes
skirts
cathode ray
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.)
Withdrawn
Application number
EP07106047A
Other languages
English (en)
French (fr)
Other versions
EP1868221A2 (de
Inventor
Fabian Poret
Sandrine Belorgeot-Pierrat
Emmanuelle Robin
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.)
Thomson Licensing SAS
Original Assignee
Thomson Licensing SAS
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 Thomson Licensing SAS filed Critical Thomson Licensing SAS
Publication of EP1868221A2 publication Critical patent/EP1868221A2/de
Publication of EP1868221A3 publication Critical patent/EP1868221A3/de
Withdrawn legal-status Critical Current

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Classifications

    • 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
    • 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

Landscapes

  • Engineering & Computer Science (AREA)
  • Manufacturing & Machinery (AREA)
  • ing And Chemical Polishing (AREA)
  • Manufacture Of Electron Tubes, Discharge Lamp Vessels, Lead-In Wires, And The Like (AREA)
EP07106047A 2006-04-26 2007-04-12 Verfahren zur Herstellung einer Kathode für Kathodenstrahlröhren Withdrawn EP1868221A3 (de)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
FR0651486A FR2900500A1 (fr) 2006-04-26 2006-04-26 Procede de fabrication de cathode pour tube a rayons cathodiques

Publications (2)

Publication Number Publication Date
EP1868221A2 EP1868221A2 (de) 2007-12-19
EP1868221A3 true EP1868221A3 (de) 2008-03-05

Family

ID=37435393

Family Applications (1)

Application Number Title Priority Date Filing Date
EP07106047A Withdrawn EP1868221A3 (de) 2006-04-26 2007-04-12 Verfahren zur Herstellung einer Kathode für Kathodenstrahlröhren

Country Status (3)

Country Link
EP (1) EP1868221A3 (de)
CN (1) CN101064231A (de)
FR (1) FR2900500A1 (de)

Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR792982A (fr) * 1934-08-10 1936-01-14 Thomson Houston Comp Francaise Perfectionnements aux électrodes émettrices
US4247377A (en) * 1979-02-21 1981-01-27 United Technologies Corporation Method for electrolytic etching
FR2818437A1 (fr) * 2000-12-15 2002-06-21 Thomson Tubes & Displays Structure de cathode a oxydes
EP1367620A1 (de) * 2002-05-31 2003-12-03 Thomson Licensing S.A. Emittierende Kathodenstruktur für eine Vorratskathode einer Elektronenröhre

Patent Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR792982A (fr) * 1934-08-10 1936-01-14 Thomson Houston Comp Francaise Perfectionnements aux électrodes émettrices
US4247377A (en) * 1979-02-21 1981-01-27 United Technologies Corporation Method for electrolytic etching
FR2818437A1 (fr) * 2000-12-15 2002-06-21 Thomson Tubes & Displays Structure de cathode a oxydes
EP1367620A1 (de) * 2002-05-31 2003-12-03 Thomson Licensing S.A. Emittierende Kathodenstruktur für eine Vorratskathode einer Elektronenröhre

Also Published As

Publication number Publication date
FR2900500A1 (fr) 2007-11-02
EP1868221A2 (de) 2007-12-19
CN101064231A (zh) 2007-10-31

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