FR2693590B1 - Procédé pour la protection d'une cathode froide, notamment pour tube fluorescent haute tension, et cathode froide correspondante. - Google Patents

Procédé pour la protection d'une cathode froide, notamment pour tube fluorescent haute tension, et cathode froide correspondante.

Info

Publication number
FR2693590B1
FR2693590B1 FR9208438A FR9208438A FR2693590B1 FR 2693590 B1 FR2693590 B1 FR 2693590B1 FR 9208438 A FR9208438 A FR 9208438A FR 9208438 A FR9208438 A FR 9208438A FR 2693590 B1 FR2693590 B1 FR 2693590B1
Authority
FR
France
Prior art keywords
cold cathode
protecting
high voltage
fluorescent tube
voltage fluorescent
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.)
Expired - Fee Related
Application number
FR9208438A
Other languages
English (en)
Other versions
FR2693590A1 (fr
Inventor
Beatrice Bernard
Marc Oltra
Bernard Beatrice
Oltra Marc
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.)
SEFLI
Original Assignee
SEFLI
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 SEFLI filed Critical SEFLI
Priority to FR9208438A priority Critical patent/FR2693590B1/fr
Publication of FR2693590A1 publication Critical patent/FR2693590A1/fr
Application granted granted Critical
Publication of FR2693590B1 publication Critical patent/FR2693590B1/fr
Anticipated expiration legal-status Critical
Expired - Fee Related legal-status Critical Current

Links

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
    • H01J9/022—Manufacture of electrodes or electrode systems of cold cathodes
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01J—ELECTRIC DISCHARGE TUBES OR DISCHARGE LAMPS
    • H01J61/00—Gas-discharge or vapour-discharge lamps
    • H01J61/02—Details
    • H01J61/04—Electrodes; Screens; Shields
    • H01J61/06—Main electrodes
    • H01J61/067—Main electrodes for low-pressure discharge lamps
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01J—ELECTRIC DISCHARGE TUBES OR DISCHARGE LAMPS
    • H01J61/00—Gas-discharge or vapour-discharge lamps
    • H01J61/70—Lamps with low-pressure unconstricted discharge having a cold pressure < 400 Torr
    • H01J61/76—Lamps with low-pressure unconstricted discharge having a cold pressure < 400 Torr having a filling of permanent gas or gases only
    • H01J61/78—Lamps with low-pressure unconstricted discharge having a cold pressure < 400 Torr having a filling of permanent gas or gases only with cold cathode; with cathode heated only by discharge, e.g. high-tension lamp for advertising

Landscapes

  • Engineering & Computer Science (AREA)
  • Manufacturing & Machinery (AREA)
  • Manufacture Of Electron Tubes, Discharge Lamp Vessels, Lead-In Wires, And The Like (AREA)
FR9208438A 1992-07-08 1992-07-08 Procédé pour la protection d'une cathode froide, notamment pour tube fluorescent haute tension, et cathode froide correspondante. Expired - Fee Related FR2693590B1 (fr)

Priority Applications (1)

Application Number Priority Date Filing Date Title
FR9208438A FR2693590B1 (fr) 1992-07-08 1992-07-08 Procédé pour la protection d'une cathode froide, notamment pour tube fluorescent haute tension, et cathode froide correspondante.

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
FR9208438A FR2693590B1 (fr) 1992-07-08 1992-07-08 Procédé pour la protection d'une cathode froide, notamment pour tube fluorescent haute tension, et cathode froide correspondante.

Publications (2)

Publication Number Publication Date
FR2693590A1 FR2693590A1 (fr) 1994-01-14
FR2693590B1 true FR2693590B1 (fr) 1994-09-30

Family

ID=9431685

Family Applications (1)

Application Number Title Priority Date Filing Date
FR9208438A Expired - Fee Related FR2693590B1 (fr) 1992-07-08 1992-07-08 Procédé pour la protection d'une cathode froide, notamment pour tube fluorescent haute tension, et cathode froide correspondante.

Country Status (1)

Country Link
FR (1) FR2693590B1 (fr)

Family Cites Families (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3906271A (en) * 1974-08-13 1975-09-16 Itt Ceramic cup electrode for a gas discharge device
FR2509091A1 (fr) * 1981-07-01 1983-01-07 Sefli Electrode a cathode froide, notamment pour tubes fluorescents, et procede de realisation d'une telle electrode

Also Published As

Publication number Publication date
FR2693590A1 (fr) 1994-01-14

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Legal Events

Date Code Title Description
ST Notification of lapse