EP0901687B1 - Flachstrahler - Google Patents

Flachstrahler Download PDF

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Publication number
EP0901687B1
EP0901687B1 EP98925420A EP98925420A EP0901687B1 EP 0901687 B1 EP0901687 B1 EP 0901687B1 EP 98925420 A EP98925420 A EP 98925420A EP 98925420 A EP98925420 A EP 98925420A EP 0901687 B1 EP0901687 B1 EP 0901687B1
Authority
EP
European Patent Office
Prior art keywords
region
anode
anodes
case
flat radiator
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 - Lifetime
Application number
EP98925420A
Other languages
German (de)
English (en)
French (fr)
Other versions
EP0901687A1 (de
Inventor
Frank Vollkommer
Lothar Hitzschke
Jens Mücke
Rolf Siebauer
Simon Jerebic
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.)
Hitzschke Lothar Dr
Vollkommer Frank Dr
Osram GmbH
Original Assignee
Hitzschke Lothar Dr
Vollkommer Frank Dr
Patent Treuhand Gesellschaft fuer Elektrische Gluehlampen mbH
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 Hitzschke Lothar Dr, Vollkommer Frank Dr, Patent Treuhand Gesellschaft fuer Elektrische Gluehlampen mbH filed Critical Hitzschke Lothar Dr
Publication of EP0901687A1 publication Critical patent/EP0901687A1/de
Application granted granted Critical
Publication of EP0901687B1 publication Critical patent/EP0901687B1/de
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

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Classifications

    • 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
    • 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
    • H01J61/0672—Main electrodes for low-pressure discharge lamps characterised by the construction of the electrode
    • 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
    • H01J61/305—Flat vessels or containers
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01J—ELECTRIC DISCHARGE TUBES OR DISCHARGE LAMPS
    • H01J61/00—Gas-discharge or vapour-discharge lamps
    • H01J61/92—Lamps with more than one main discharge path
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01J—ELECTRIC DISCHARGE TUBES OR DISCHARGE LAMPS
    • H01J65/00—Lamps without any electrode inside the vessel; Lamps with at least one main electrode outside the vessel
    • H01J65/04—Lamps in which a gas filling is excited to luminesce by an external electromagnetic field or by external corpuscular radiation, e.g. for indicating plasma display panels
    • H01J65/042—Lamps in which a gas filling is excited to luminesce by an external electromagnetic field or by external corpuscular radiation, e.g. for indicating plasma display panels by an external electromagnetic field
    • H01J65/046—Lamps in which a gas filling is excited to luminesce by an external electromagnetic field or by external corpuscular radiation, e.g. for indicating plasma display panels by an external electromagnetic field the field being produced by using capacitive means around the vessel

Definitions

  • the invention is based on a flat radiator according to the preamble of Claim 1.
  • radiators such as in the EP 0 363 832 and disclosed in DE-OS 195 26 211.
  • Such radiators have at least one from the discharge space of the radiator by dielectric Material separated electrode.
  • Such electrodes are as follows also abbreviated as "dielectric electrodes”.
  • radiators are radiators with a flat surface Geometry meant that emit light, i.e. visible electromagnetic Radiation, or also ultraviolet (UV) and vacuum ultraviolet (VUV) radiation.
  • visible electromagnetic Radiation or also ultraviolet (UV) and vacuum ultraviolet (VUV) radiation.
  • Such radiation sources are suitable, depending on the spectrum of the emitted radiation, for general and auxiliary lighting, such as home and office illumination or backlighting of displays, such as LCDs (L iquid C rystal D isplays), for the transport and signal lighting, for UV radiation, eg disinfection or photolytics.
  • general and auxiliary lighting such as home and office illumination or backlighting of displays, such as LCDs (L iquid C rystal D isplays), for the transport and signal lighting, for UV radiation, eg disinfection or photolytics.
  • EP 0 363 832 describes a UV high-power lamp with pairs of elongated electrodes connected to both poles of a high-voltage source disclosed.
  • the electrodes are from each other and from the discharge space of the radiator separated by dielectric material.
  • the elongated electrodes with different polarity anodes and Cathodes
  • area-like Discharge configurations with relatively flat discharge tubes let it be realized.
  • WO 94/23442 describes a method for operating an incoherently emitting Radiation source, in particular discharge lamp, by means of dielectric disabled discharge disclosed.
  • the operating procedure sees one Sequence of active power pulses before, the individual active power pulses are separated from each other by dead times.
  • more unipolar Pulse a large number of individual delta-shaped discharges, lined up along the elongated electrodes.
  • the advantage of this pulsed mode of operation is a high efficiency of radiation generation.
  • the invention proposes the separation based on the prior art of those anodes that have two cathodes immediately at equal intervals are adjacent, each in two anodes. In other words an additional anode is arranged between each such pair of cathodes.
  • each anode A i , A i ' is at most one cathode K i or K i + 1 immediately adjacent.
  • each anode pair A i , A i ' is smaller than the distance between the respective anode A i or A i ' and the immediately adjacent cathode K i or K i + 1 .
  • a good value for the mutual distance is the approximate width of the anode strips.
  • the two anodes A i , A i ' are designed as a fork-shaped double anode.
  • the double anode has an elongated first and second region, which are arranged at a predetermined distance from one another. The first and the second area are connected to one another by a third area.
  • FIG. 3a, 3b show a schematic representation of a top view or the cross section along the line BB of a UV / VUV flat radiator 4, i.e. one flat "discharge lamp", which is based on the efficient emission of UV or. VUV radiation is designed.
  • the flat radiator 4 consists of a flat discharge vessel 5 with a rectangular base, four strip-shaped metallic cathodes 6 (-) and three elongated, fork-shaped Double anodes 7 (+).
  • the discharge vessel 5 in turn consists of a rectangular base plate 8 and a trough-like cover 9 (in FIG. 3a not shown), both made of glass.
  • the bottom plate 8 and the lid 9 are gas-tightly connected to one another in the region of their peripheral edges and thus enclose the gas filling of the flat radiator 4.
  • the gas filling exists made of xenon with a filling pressure of 10 kPa.
  • the double anodes 7 exist each from two mutually parallel strips 7a, 7b, which on their one End are merged into a common wide strip 7c.
  • the Cathodes 6 and double anodes 7 are on the inner wall of the base plate 8 applied parallel to each other.
  • the wide end strips 7c Double anodes 7 and the ends of the cathodes 6 are gas-tight from the Discharge vessel 5 led to the outside and serve as connections for a voltage source.
  • the double anodes are 7 within the discharge vessel 5 each completely with one Glass layer 10 covered, the thickness of which is approximately 150 microns.
  • the respective distance d between the cathode 6 and the immediately adjacent strip 7a or 7b of the double anode 7 is approximately 10 mm.
  • the mutual distance g of the two parallel strips 7a, 7b is approximately 3 mm.
  • a variant differs from that in the figures 3a, 3b shown flat radiators only in that not only the anodes, but also the cathodes with a dielectric layer from The inside of the discharge vessel is separated (dielectrically handicapped on both sides Discharge).
  • the inner wall of the discharge vessel is completely coated with a phosphor or phosphor mixture, which converts the UV / VUV radiation generated by the discharge into visible light.
  • a light-reflecting layer of Al 2 O 3 or TiO 2 is applied to the inner wall of the base plate.
  • This variant is a flat fluorescent lamp that is suitable for general lighting or backlighting of displays, e.g. LCD (Liquid Crystal Display), is suitable.
  • LCD Liquid Crystal Display

Landscapes

  • Physics & Mathematics (AREA)
  • Electromagnetism (AREA)
  • Engineering & Computer Science (AREA)
  • Plasma & Fusion (AREA)
  • Vessels And Coating Films For Discharge Lamps (AREA)
  • Physical Or Chemical Processes And Apparatus (AREA)
  • Vehicle Step Arrangements And Article Storage (AREA)
  • Apparatus Associated With Microorganisms And Enzymes (AREA)
  • Ultra Sonic Daignosis Equipment (AREA)
EP98925420A 1997-03-21 1998-03-20 Flachstrahler Expired - Lifetime EP0901687B1 (de)

Applications Claiming Priority (3)

Application Number Priority Date Filing Date Title
DE19711892 1997-03-21
DE19711892A DE19711892A1 (de) 1997-03-21 1997-03-21 Flachstrahler
PCT/DE1998/000829 WO1998043279A1 (de) 1997-03-21 1998-03-20 Flachstrahler

Publications (2)

Publication Number Publication Date
EP0901687A1 EP0901687A1 (de) 1999-03-17
EP0901687B1 true EP0901687B1 (de) 2002-06-26

Family

ID=7824179

Family Applications (1)

Application Number Title Priority Date Filing Date
EP98925420A Expired - Lifetime EP0901687B1 (de) 1997-03-21 1998-03-20 Flachstrahler

Country Status (12)

Country Link
US (1) US6222317B1 (da)
EP (1) EP0901687B1 (da)
JP (1) JP3037441B2 (da)
KR (1) KR100281343B1 (da)
CN (1) CN1165958C (da)
CA (1) CA2255758C (da)
DE (2) DE19711892A1 (da)
DK (1) DK0901687T3 (da)
ES (1) ES2179503T3 (da)
HU (1) HU223172B1 (da)
TW (1) TW412772B (da)
WO (1) WO1998043279A1 (da)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE102004039902B3 (de) * 2004-08-17 2006-04-06 Berger Gmbh Flächige Gasentladungslampe und Verfahren zu ihrer Herstellung

Families Citing this family (14)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE19817478B4 (de) 1998-04-20 2004-03-18 Patent-Treuhand-Gesellschaft für elektrische Glühlampen mbH Flache Entladungslampe und Verfahren zu ihrer Herstellung
DE19826809A1 (de) * 1998-06-16 1999-12-23 Patent Treuhand Ges Fuer Elektrische Gluehlampen Mbh Dielektrische Schicht für Entladungslampen und zugehöriges Herstellungsverfahren
DE19844720A1 (de) * 1998-09-29 2000-04-06 Patent Treuhand Ges Fuer Elektrische Gluehlampen Mbh Dimmbare Entladungslampe für dielektrisch behinderte Entladungen
DE19919363A1 (de) * 1999-04-28 2000-11-09 Patent Treuhand Ges Fuer Elektrische Gluehlampen Mbh Entladungslampe mit Abstandshalter
DE19936865A1 (de) * 1999-08-05 2001-02-15 Patent Treuhand Ges Fuer Elektrische Gluehlampen Mbh Gasentladungslampe und zugehöriges Herstellungsverfahren
DE19936863A1 (de) * 1999-08-05 2001-02-15 Patent Treuhand Ges Fuer Elektrische Gluehlampen Mbh Herstellungsverfahren für eine Gasentladungslampe
DE19936864A1 (de) 1999-08-05 2001-02-15 Patent Treuhand Ges Fuer Elektrische Gluehlampen Mbh Verfahren zum Einsetzen eines Pumpstengels in ein Entladungsgefäß
US7146290B2 (en) * 2000-11-27 2006-12-05 Uview Ultraviolet Systems, Inc. Apparatus and method for diagnosing performance of air-conditioning systems
KR100741898B1 (ko) * 2000-12-22 2007-07-24 엘지.필립스 엘시디 주식회사 평판형 형광램프 및 그 제조방법
DE10134965A1 (de) * 2001-07-23 2003-02-06 Patent Treuhand Ges Fuer Elektrische Gluehlampen Mbh Flache Entladungslampe
KR100456658B1 (ko) * 2002-04-29 2004-11-10 주식회사 엘에스텍 면광원 장치
KR100650491B1 (ko) * 2004-02-27 2006-11-27 유양산전 주식회사 평판형 형광램프
DE102004055328B3 (de) * 2004-11-16 2006-04-13 Institut für Niedertemperatur-Plasmaphysik e.V. Vorrichtung nach dem Prinzip einer dielektrisch behinderten Entladung zur Strahlungserzeugung
TW200636337A (en) * 2005-04-04 2006-10-16 Delta Optoelectronics Inc Electrode structure

Family Cites Families (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CH676168A5 (da) 1988-10-10 1990-12-14 Asea Brown Boveri
US5343116A (en) * 1992-12-14 1994-08-30 Winsor Mark D Planar fluorescent lamp having a serpentine chamber and sidewall electrodes
DE4311197A1 (de) 1993-04-05 1994-10-06 Patent Treuhand Ges Fuer Elektrische Gluehlampen Mbh Verfahren zum Betreiben einer inkohärent strahlenden Lichtquelle
US5479069A (en) * 1994-02-18 1995-12-26 Winsor Corporation Planar fluorescent lamp with metal body and serpentine channel
KR200171939Y1 (ko) * 1994-10-25 2000-03-02 손욱 면광원장치
DE19526211A1 (de) * 1995-07-18 1997-01-23 Patent Treuhand Ges Fuer Elektrische Gluehlampen Mbh Verfahren zum Betreiben von Entladungslampen bzw. -strahler
CA2256346C (en) * 1997-03-21 2006-05-16 Patent-Treuhand-Gesellschaft Fuer Elektrische Gluehlampen Mbh Flat fluorescent light for background lighting and liquid crystal display device fitted with said flat fluorescent light

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE102004039902B3 (de) * 2004-08-17 2006-04-06 Berger Gmbh Flächige Gasentladungslampe und Verfahren zu ihrer Herstellung

Also Published As

Publication number Publication date
HUP0000626A2 (hu) 2000-06-28
JPH11514148A (ja) 1999-11-30
TW412772B (en) 2000-11-21
KR20000015786A (ko) 2000-03-15
DE59804564D1 (de) 2002-08-01
JP3037441B2 (ja) 2000-04-24
DK0901687T3 (da) 2002-08-19
HU223172B1 (hu) 2004-03-29
KR100281343B1 (ko) 2001-03-02
CN1220769A (zh) 1999-06-23
ES2179503T3 (es) 2003-01-16
WO1998043279A1 (de) 1998-10-01
DE19711892A1 (de) 1998-09-24
EP0901687A1 (de) 1999-03-17
HUP0000626A3 (en) 2003-02-28
CA2255758A1 (en) 1998-10-01
US6222317B1 (en) 2001-04-24
CN1165958C (zh) 2004-09-08
CA2255758C (en) 2006-01-24

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