EP0984480A3 - Process for the fabrication of a display tube for the luminous sign technology and the illumination of advertising technique forms - Google Patents

Process for the fabrication of a display tube for the luminous sign technology and the illumination of advertising technique forms Download PDF

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Publication number
EP0984480A3
EP0984480A3 EP99117139A EP99117139A EP0984480A3 EP 0984480 A3 EP0984480 A3 EP 0984480A3 EP 99117139 A EP99117139 A EP 99117139A EP 99117139 A EP99117139 A EP 99117139A EP 0984480 A3 EP0984480 A3 EP 0984480A3
Authority
EP
European Patent Office
Prior art keywords
glass tube
display tube
tube
display
fabrication
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
EP99117139A
Other languages
German (de)
French (fr)
Other versions
EP0984480B1 (en
EP0984480A2 (en
Inventor
Frank R. Dipl.-Ing. Müller
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.)
Neon-Mueller Dresden Lichtwerbung GmbH
Original Assignee
Neon-Mueller Dresden Lichtwerbung GmbH
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 Neon-Mueller Dresden Lichtwerbung GmbH filed Critical Neon-Mueller Dresden Lichtwerbung GmbH
Publication of EP0984480A2 publication Critical patent/EP0984480A2/en
Publication of EP0984480A3 publication Critical patent/EP0984480A3/en
Application granted granted Critical
Publication of EP0984480B1 publication Critical patent/EP0984480B1/en
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

Links

Classifications

    • G—PHYSICS
    • G09—EDUCATION; CRYPTOGRAPHY; DISPLAY; ADVERTISING; SEALS
    • G09F—DISPLAYING; ADVERTISING; SIGNS; LABELS OR NAME-PLATES; SEALS
    • G09F13/00—Illuminated signs; Luminous advertising
    • G09F13/26—Signs formed by electric discharge tubes
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01J—ELECTRIC DISCHARGE TUBES OR DISCHARGE LAMPS
    • H01J61/00—Gas-discharge or vapour-discharge lamps
    • H01J61/02—Details
    • H01J61/30—Vessels; Containers
    • H01J61/32—Special longitudinal shape, e.g. for advertising purposes
    • 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
    • H01J9/24—Manufacture or joining of vessels, leading-in conductors or bases
    • H01J9/245—Manufacture or joining of vessels, leading-in conductors or bases specially adapted for gas discharge tubes or lamps
    • H01J9/247—Manufacture or joining of vessels, leading-in conductors or bases specially adapted for gas discharge tubes or lamps specially adapted for gas-discharge lamps

Abstract

Die Erfindung betrifft ein Verfahren zum Herstellen einer Anzeigeröhre (30) für Anzeigezwecke, insbesondere zum Einsatz in Lichtwerbeanlagen mit folgenden Schritten: In einem ersten Schritt wird ein mit einem Leuchtstoff beschlämmmtes Glasrohr manuell in eine beliebige Form (32) gebogen. In einem zweiten Schritt werden Wendelelektroden an den Enden (34) des verformten Glasrohrs eingschmolzen, wobei eine Wendelelektrode mit einem Pumpstutzen versehen ist. In einem dritten Schritt wird das Glasrohr durch externe Energiezuführung zur Oxidation störender Bestandteile der Anzeigeröhre und zur Unterstützung der Formierung der Wendelelektroden abwechselnd erhitzt und über den Pumpstutzen mit Spülgasen gespült. In einem nächsten Schritt wird das Glasrohr mit zumindest einem Gas oder einem Gasgemisch gefüllt, anschließend der Pumpstutzen vom Glasrohr abgeschmolzen und schließlich das Glasrohr eingebrannt. Die Erfindung betrifft weiterhin eine nach diesem Verfahren hergestellte Anzeigeröhre sowie ein System aus einem Vorschaltgerät und einer derartigen Anzeigeröhre. Sie umfaßt weiterhin ein Verfahren zum Betreiben einer derartigen Anzeigeröhre (30).

Figure 00000001
The invention relates to a method for producing a display tube (30) for display purposes, in particular for use in illuminated advertising systems, comprising the following steps: In a first step, a glass tube coated with a phosphor is manually bent into any shape (32). In a second step, helix electrodes are melted at the ends (34) of the deformed glass tube, a helix electrode being provided with a pump nozzle. In a third step, the glass tube is alternately heated by external energy supply to oxidize disruptive components of the display tube and to support the formation of the spiral electrodes and is flushed with purge gases via the pump nozzle. In a next step, the glass tube is filled with at least one gas or a gas mixture, then the pump connector is melted off the glass tube and finally the glass tube is baked. The invention further relates to a display tube produced by this method and to a system comprising a ballast and such a display tube. It further comprises a method for operating such a display tube (30).
Figure 00000001
EP99117139A 1998-09-02 1999-08-31 Process for the fabrication of a display tube Expired - Lifetime EP0984480B1 (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE19839965A DE19839965C2 (en) 1998-09-02 1998-09-02 A method of manufacturing a display tube, a display tube made by this method and a method of operating the same
DE19839965 1998-09-02

Publications (3)

Publication Number Publication Date
EP0984480A2 EP0984480A2 (en) 2000-03-08
EP0984480A3 true EP0984480A3 (en) 2000-05-17
EP0984480B1 EP0984480B1 (en) 2004-03-17

Family

ID=7879546

Family Applications (1)

Application Number Title Priority Date Filing Date
EP99117139A Expired - Lifetime EP0984480B1 (en) 1998-09-02 1999-08-31 Process for the fabrication of a display tube

Country Status (2)

Country Link
EP (1) EP0984480B1 (en)
DE (2) DE19839965C2 (en)

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE10153009C1 (en) * 2001-10-26 2003-04-17 Marcus Thielen Gas discharge lamp manufacturing method uses activation of lamp electrodes for heating inert gas during lamp envelope conditioning stage

Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2393414A1 (en) * 1977-06-02 1978-12-29 Kawamura Osamu Prodn. of fluorescent tube in bent configuration - heats straight lamp tube and bends its ends in parallel towards tube centre
US4303290A (en) * 1979-02-02 1981-12-01 Tokyo Shibaura Denki Kabushiki Kaisha Method of evacuating a fluorescent lamp bulb

Family Cites Families (9)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
BE478391A (en) * 1945-01-26
US3749467A (en) * 1971-03-15 1973-07-31 Duro Test Corp Fluorescent lamps and method of manufacturing the same
DE2724528C2 (en) * 1977-05-31 1984-10-18 Osamu Matsudo Chiba Kawamura Method and apparatus for making a tubular fluorescent lamp in an arcuate shape
DD133381A1 (en) * 1977-09-30 1978-12-27 Rainer Amende METHOD FOR PRODUCING GAS-FILLED LAMPS AND GLIDING TRANSMITTERS, PREFERABLY OF DISCHARGE FAILURES FOR HIGH-PRESSURE LAMPS
DE3112878A1 (en) * 1981-03-31 1982-10-14 Patent-Treuhand-Gesellschaft für elektrische Glühlampen mbH, 8000 München MERCURY VAPOR LOW-PRESSURE DISCHARGE LAMP AND METHOD FOR PRODUCING THE SAME
JPS57182905A (en) * 1981-04-13 1982-11-11 Gen Electric U-shaped discharge lamp
JPS6095832A (en) * 1983-10-28 1985-05-29 Toshiba Corp Production of bulb
JPS6095828A (en) * 1983-10-31 1985-05-29 Toshiba Corp Production of fluorescent lamp
HU201421B (en) * 1987-01-23 1990-10-28 Tungsram Reszvenytarsasag Method for pumping low-pressure gas-discharge light source

Patent Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2393414A1 (en) * 1977-06-02 1978-12-29 Kawamura Osamu Prodn. of fluorescent tube in bent configuration - heats straight lamp tube and bends its ends in parallel towards tube centre
US4303290A (en) * 1979-02-02 1981-12-01 Tokyo Shibaura Denki Kabushiki Kaisha Method of evacuating a fluorescent lamp bulb

Also Published As

Publication number Publication date
DE19839965C2 (en) 2003-04-17
DE19839965A1 (en) 2000-03-09
EP0984480B1 (en) 2004-03-17
DE59908856D1 (en) 2004-04-22
EP0984480A2 (en) 2000-03-08

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