EP0912992B1 - Spot plat - Google Patents

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Publication number
EP0912992B1
EP0912992B1 EP98925421A EP98925421A EP0912992B1 EP 0912992 B1 EP0912992 B1 EP 0912992B1 EP 98925421 A EP98925421 A EP 98925421A EP 98925421 A EP98925421 A EP 98925421A EP 0912992 B1 EP0912992 B1 EP 0912992B1
Authority
EP
European Patent Office
Prior art keywords
flat radiator
anode
strips
electrodes
flat
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
EP98925421A
Other languages
German (de)
English (en)
Other versions
EP0912992A2 (fr
Inventor
Frank Vollkommer
Lothar Hitzschke
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.)
Osram GmbH
Original Assignee
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 Patent Treuhand Gesellschaft fuer Elektrische Gluehlampen mbH filed Critical Patent Treuhand Gesellschaft fuer Elektrische Gluehlampen mbH
Publication of EP0912992A2 publication Critical patent/EP0912992A2/fr
Application granted granted Critical
Publication of EP0912992B1 publication Critical patent/EP0912992B1/fr
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
    • 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 relates to a flat radiator according to the preamble of Claim 1.
  • the invention relates to a system from this Flat radiator and a voltage source according to the preamble of the claim 10th
  • 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, e.g. 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, e.g. disinfection or photolytics.
  • the electrodes are of one polarity or all electrodes, i.e. both polarities, by means of a dielectric layer separated from the discharge (one-sided or two-sided dielectric barrier Discharge, see e.g. WO 94/23442 and EP 0 363 832).
  • Such electrodes are also shortened below as “dielectric electrodes" designated.
  • a flat radiator is known from DE-OS 195 26 211, in which the strip-shaped Electrodes arranged on the outer wall of the discharge vessel are.
  • the spotlight is switched with a sequence of pause times separate active power pulses operated.
  • Burn through it a plurality of similar, in each case between adjacent electrodes Top view, i.e. perpendicular to the plane in which the electrodes are arranged, delta-like ( ⁇ ) individual discharges.
  • ⁇ delta-like individual discharges.
  • These individual discharges are side by side lined up along the electrodes, each in Widen the direction of the (current) anode.
  • the voltage pulses of a bilaterally dielectric discharge there is a visual overlay of two delta-shaped structures.
  • the number of individual discharge structures is partly due to the Coupled electrical power can be influenced.
  • the individual discharges correspond to the equidistantly arranged strips - Provided sufficient electrical input power - almost evenly within the flat discharge vessel of the lamp distributed.
  • a disadvantage of this solution is that the surface luminance drops significantly towards the edge.
  • One of the reasons for this is marginally no radiation contribution from the neighboring areas outside of the discharge vessel.
  • a uniform surface luminance is, however, for numerous applications such radiator is desirable.
  • backlighting LCDs demand a visual uniformity, their depth of modulation Does not exceed 15%.
  • the object of the present invention is to provide a flat radiator with stripe-like To provide electrodes according to the preamble of claim 1, whose surface luminance is almost uniform up to the edge.
  • strip-like electrode or shortening “Electrode strips” is intended to be an elongated one here and below, in comparison can be understood to be very thin along its length, capable of to be able to act as an electrode.
  • the edges of this structure must not necessarily be parallel to each other. In particular, too Substructures may be included along the long sides of the strips.
  • the basic idea of the invention is that typical for flat radiators Decrease in luminance from the center to the edges due to an adapted Compensate electrode structure.
  • the strip-like electrodes are next to one another arranged on a common wall of the discharge vessel (Type I).
  • the advantage is that shadowing through the electrodes be avoided on the opposite wall.
  • Between the cathode strips are two parallel anode strips, i.e. an anode pair, instead of a single anode strip previously arranged. This solves the problem described at the outset that when Prior art cited only from one of two neighboring ones Single discharges towards the intervening cathode strip burn individual anode strips.
  • the extensions 6 are in the direction to the narrow sides of the cathodes 4,4 ', i.e. towards the re the electrode strips 4.5 vertically oriented edges 1.3 towards denser arranged.
  • the mutual spacing of the extensions 6 on the is typical Margins 1.3 only half as large as in the middle.
  • the distance between the extensions 6 is near the corner points of the flat radiator finally reduced to about a third.
  • the edges 2 oriented parallel to the electrode strips 4, 5 (the corresponding opposite second edge of the flat radiator is in selected section of Figure 1 is not shown) is preferably one individual anode strips 5 'arranged.
  • the second basic realization of an electrode structure for one Type I flat spotlight aims to control the luminance of the individual discharges the closer they are to the edge, the more they increase. This is achieved (see the partial schematic diagram of the principle in Figure 2) that the two anode strips 9a, 9b of each anode pair 9 in the direction of the edges 10, 11 oriented perpendicular thereto of the flat radiator are widened. Typical broadening values amount to up to a factor of two for the edge areas of the flat radiator and approx. up to a factor of three for the corner areas.
  • the anode strips are in relation to their longitudinal axis asymmetrically in the direction of the respective anodic partner strip 9b or 9a widened.
  • the respective distance d to the neighboring cathode 12 despite widening of the anode strips 9a, 9b consistently constant. Consequently, the ignition conditions are also in operation for all single discharges (not shown) along the electrode strips 9.12 equal. This ensures that the individual discharges run along of the entire electrode length in a row (sufficient electrical input power provided).
  • the anode strips are in Widened direction to the respective neighboring cathode.
  • the broadening is only relatively weak. This will prevents the discharges from occurring only at the location of the largest Width of the anode strip, i.e. in the place of the shortest in this case Training distance.
  • the broadening is significantly smaller than that Stroke, typically about a tenth of the stroke.
  • both can Widening variants can also be combined, i.e. the broadening is both towards the respective anode partner strip and towards the Adjacent cathode formed.
  • the two principal realizations of the targeted Electrode shaping can also be combined with one another (cf. FIG. 3a).
  • the cathodes do not necessarily have to as shown only by way of example in FIG. 2, be provided with extensions. Rather, in the case of the widened anode strips, the cathodes can also be designed as a simple parallel strip.
  • the anode and cathode strips are open opposite walls of the discharge vessel arranged (Type II).
  • the discharges burn from the electrodes one wall through the discharge space to the electrodes the other wall.
  • this arrangement can be used achieve higher UV yields than when using anodes and cathodes only one common wall alternately arranged side by side are. According to the current state of knowledge, this becomes positive Effect attributed to reduced wall losses.
  • the advantage is the low shading of the ceiling tile emitted useful light because the anode strips are narrower than that Cathode strips are executed.
  • the luminance of the cathode strips as with the Type I flat spotlight, Processes that are increasingly densely arranged towards their narrow sides are. Additionally or alternatively, this is also already with the Type I flat radiator explained widening of the anode strips to the edge of the Flat lamp advantageous.
  • Figures 3a, 3b show a schematic representation of a top view or Side view of a flat fluorescent lamp, i.e. a flat radiator, the emits white light during operation.
  • This flat radiator is suitable for the General lighting or for backlighting displays, e.g. LCD (Liquid Crystal Display).
  • LCD Liquid Crystal Display
  • the flat radiator 13 consists of a flat discharge vessel 14 with a rectangular base area, four strip-like metallic cathodes 12, 15 (-) and dielectric anodes (+), three of which are designed as elongated double anodes 9 and two as individual strip-shaped anodes 8.
  • the discharge vessel 14 in turn consists of a base plate 18, a cover plate 19 and a frame 20.
  • the base plate 18 and cover plate 19 are each gas-tightly connected to the frame 20 by means of glass solder 21 such that the interior 22 of the discharge vessel 14 is cuboid.
  • the base plate 18 is larger than the cover plate 19 in such a way that the discharge vessel 14 has a peripheral free-standing edge.
  • the inner wall of the cover plate 19 is coated with a phosphor mixture (not visible in the illustration), which converts the UV / VUV radiation generated by the discharge into visible white light.
  • a phosphor mixture (not visible in the illustration)
  • the inner wall of the base plate and the frame are additionally coated with a mixture of phosphors.
  • a light-reflecting layer of Al 2 O 3 or TiO 2 is applied to the base plate.
  • the breakthrough in the cover plate 19 is used only for illustrative purposes and gives a view of part of anodes 8, 9 and cathodes 12, 15 free.
  • the anodes 8, 9 and cathodes 12, 15 are alternately and in parallel the inner wall of the bottom plate 18 is arranged.
  • Anodes 8, 9 and Cathodes 12, 15 are each extended at one end and on the base plate 18 from the inside 22 of the discharge vessel 14 on both sides guided on the outside such that the associated anodic or cathodic Bushings on opposite sides of the base plate 18 are arranged.
  • the electrode strips go on the edge of the base plate 18 8, 9, 12, 15 each in a cathode-side 23 and anode-side 24 bus-like conductor track over.
  • the two conductor tracks 23, 24 serve as contacts for connection to an electrical voltage source (not shown).
  • the anodes 8, 9 are complete covered with a glass layer 25 (see also Figures 1 and 2), the Thickness is approx. 250 ⁇ m.
  • the double anodes 9 each consist of two parallel strips, as already shown in detail in FIG. 2.
  • the two anode strips 9a, 9b of each anode pair 9 are widened on one side in the direction of the edges 26, 27 of the flat radiator 13 oriented perpendicularly thereto in the direction of the respective partner strips 9b and 9a.
  • the anode strips 9a, 9b are approx. 0.5 mm wide at the narrowest point and approx. 1 mm wide at the widest point.
  • the mutual greatest distance g max (cf. FIG. 2) of the two strips of each anode pair 9 is approximately 4 mm, the smallest distance g min is approximately 3 mm.
  • the two individual anode strips 8 are each arranged in the immediate vicinity of the two edges 29, 30 of the flat radiator 13 which are parallel to the electrode strips 8, 9, 12, 15.
  • the cathode strips 12; 15 have nose-like, each adjacent Anode 8; 9 facing extensions 28. They cause locally limited reinforcements of the electric field and consequently that the delta-shaped individual discharges (not shown in FIGS. 3a, 3b, but see FIG. 1) exclusively ignite at these points.
  • the Distance d (see FIG. 2) between the extensions 28 and the respective one immediately adjacent anode strips is approx. 6 mm.
  • the electrodes 8, 9, 12, 15 including bushings and power supplies 23, 24 are on the cathode or anode side in each case as coherent structure similar to a conductor track.
  • the two structures are by means of Screen printing technology applied directly to the base plate 18.
  • 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 anodes 8, 9 and cathodes 12, 15 of the Flat radiator 13 via the contacts 24 and 23 to one pole of a pulse voltage source (not shown in Figures 3a, 3b) connected.
  • the pulse voltage source supplies unipolar voltage pulses, which are separated by pauses.
  • a large number are formed individual discharges (not shown in Figures 3a, 3b), which between the extensions 28 of the respective cathode 12; 15 and the corresponding immediately adjacent anode strips 8; 9 burn.

Claims (10)

  1. Source (13) plate de rayonnement, comprenant une enceinte de décharge en matériau non conducteur de l'électricité, au moins en partie transparente, emplie d'une atmosphère de gaz fermée (14) ou ouverte en étant parcourue par du gaz et des électrodes (8 ; 9 ; 12 ; 15) en forme de bande placées sur la paroi de l'enceinte (14) de décharge, au moins les anodes (8, 9) étant séparées de l'intérieur de l'enceinte (14) de décharge par une matière (25) diélectrique, caractérisée en ce que les électrodes (8 ; 9 ; 12 ;15) sont conformées afin d'influencer comme il convient la répartition de la densité de puissance électrique dans la décharge de façon à ce que, en fonctionnement, la luminance superficielle de la source (13) plate de rayonnement soit sensiblement constante jusqu'au ses bords (26, 27, 29, 30)
  2. Source plate de rayonnement suivant la revendication 1, caractérisée en ce que la conformation des électrodes consiste en ce que les cathodes (15) ont des prolongements (28) en bec tournés vers les anodes (8) voisines respectives, prolongements (28) qui sont disposés de manière de plus en plus drue en direction des deux petits côtés respectifs des cathodes (15).
  3. Source plate de rayonnement suivant la revendication 1, caractérisée en ce que la conformation des électrodes consiste en un élargissement des bandes (9a ; 9b) d'anode en direction de leurs deux petits côtés respectifs.
  4. Source plate de rayonnement suivant la revendication 1, caractérisée par les caractéristiques des revendications 2 et 3.
  5. Lampe d'éclairage suivant la revendication 1, caractérisée en ce que les électrodes (8 ; 9 ; 12 ; 15) en forme de bande sont disposées côté à côte sur une paroi intérieure commune de l'enceinte (14) de décharge, deux bandes (9a, 9b) d'anode, c'est-à-dire une paire (9) d'anodes, étant interposées entre deux bandes (12, 12) ou (12, 15) voisines de cathode.
  6. Source plate de rayonnement suivant la revendication 5, caractérisée en ce que la conformation des électrodes consiste en ce que les deux bandes (9a, 9b) d'anode de chaque paire (9) d'anodes sont élargies en direction de leurs deux petits côtés respectifs et dissymétriquement par rapport à leur axe longitudinal en direction de leurs bandes (9b et 9a) partenaires respectives, de sorte que la distance (d) respective à la cathode (12 ; 15) voisine est en moyenne constante, grâce à quoi en fonctionnement la luminance des décharges croít vers les bords (26, 27).
  7. Source plate de rayonnement suivant la revendication 1, caractérisée en ce que les bandes (9 ; 12 ; 15 ; 16) d'électrode sont disposées sur la paroi intérieure de l'enceinte (14) de décharge, au moins les bandes (9 ; 16) d'anode étant recouvertes entièrement d'une couche (25) diélectrique.
  8. Source plate de rayonnement suivant l'une ou plusieurs des revendications précédentes, caractérisée en ce que les électrodes (8, 9 , 12, 15), y compris les traversées et les entrées (23, 24) de courant, sont constituées sous la forme de sous-parties fonctionnellement différentes d'une structure d'un seul tenant analogue à une piste conductrice du côté de la cathode ou du côté de l'anode.
  9. Source plate de rayonnement suivant la revendication 1, caractérisée en ce qu'au moins une partie de la paroi intérieure de l'enceinte de décharge a une couche en une matière luminescente ou en un mélange de matières luminescentes.
  10. Système comprenant une source plate de rayonnement et une source électrique de tension par impulsions, qui est propre à fournir en fonctionnement des impulsions de tension séparées les unes des autres par des intervalles, caractérisé en ce que la source plate de rayonnement a les caractéristiques d'une ou plusieurs des revendications 1 à 9.
EP98925421A 1997-03-21 1998-03-20 Spot plat Expired - Lifetime EP0912992B1 (fr)

Applications Claiming Priority (3)

Application Number Priority Date Filing Date Title
DE19711893A DE19711893A1 (de) 1997-03-21 1997-03-21 Flachstrahler
DE19711893 1997-03-21
PCT/DE1998/000830 WO1998043278A2 (fr) 1997-03-21 1998-03-20 Spot plat

Publications (2)

Publication Number Publication Date
EP0912992A2 EP0912992A2 (fr) 1999-05-06
EP0912992B1 true EP0912992B1 (fr) 2003-10-15

Family

ID=7824180

Family Applications (1)

Application Number Title Priority Date Filing Date
EP98925421A Expired - Lifetime EP0912992B1 (fr) 1997-03-21 1998-03-20 Spot plat

Country Status (11)

Country Link
US (1) US6252352B1 (fr)
EP (1) EP0912992B1 (fr)
JP (1) JP3249538B2 (fr)
KR (1) KR100385009B1 (fr)
CN (1) CN1165961C (fr)
DE (2) DE19711893A1 (fr)
DK (1) DK0912992T3 (fr)
ES (1) ES2209149T3 (fr)
HU (1) HU223639B1 (fr)
TW (1) TW414917B (fr)
WO (1) WO1998043278A2 (fr)

Families Citing this family (13)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE19636965B4 (de) * 1996-09-11 2004-07-01 Patent-Treuhand-Gesellschaft für elektrische Glühlampen mbH Elektrische Strahlungsquelle und Bestrahlungssystem mit dieser Strahlungsquelle
DE19844720A1 (de) * 1998-09-29 2000-04-06 Patent Treuhand Ges Fuer Elektrische Gluehlampen Mbh Dimmbare Entladungslampe für dielektrisch behinderte Entladungen
DE19845228A1 (de) * 1998-10-01 2000-04-27 Patent Treuhand Ges Fuer Elektrische Gluehlampen Mbh Dimmbare Entladungslampe für dielektrisch behinderte Entladungen
EP1104006A3 (fr) 1999-11-23 2001-10-04 Koninklijke Philips Electronics N.V. Ampoule plate
DE10048409A1 (de) 2000-09-29 2002-04-11 Patent Treuhand Ges Fuer Elektrische Gluehlampen Mbh Entladungslampe mit kapazitiver Feldmodulation
JP3471782B2 (ja) 2001-02-13 2003-12-02 Ｎｅｃ液晶テクノロジー株式会社 平面型蛍光ランプユニット及びそれを用いた液晶表示装置
KR100437954B1 (ko) * 2002-08-09 2004-07-01 주식회사 엘에스텍 평판형 램프와, 이를 채용한 램프조립체
CN100336160C (zh) * 2005-05-26 2007-09-05 西安交通大学 平面介质阻挡放电荧光灯
FR2890232A1 (fr) * 2005-08-23 2007-03-02 Saint Gobain Lampe plane a decharge coplanaire et utilisations
DE102006026332A1 (de) * 2006-06-02 2007-12-06 Patent-Treuhand-Gesellschaft für elektrische Glühlampen mbH Entladungslampe für dielektrisch behinderte Entladungen mit rippenartigen Stützelementen zwischen Bodenplatte und Deckenplatte
DE102006026333A1 (de) 2006-06-02 2007-12-06 Patent-Treuhand-Gesellschaft für elektrische Glühlampen mbH Entladungslampe für dielektrisch behinderte Entladungen mit flachem Entladungsgefäß
US20070290599A1 (en) * 2006-06-14 2007-12-20 Chu-Chi Ting Flat fluorescent lamp and liquid crystal display device thereof
US7586262B2 (en) * 2006-09-15 2009-09-08 Chunghwa Picture Tubes, Ltd. Flat fluorescent lamp and liquid crystal display

Family Cites Families (19)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS54184065U (fr) * 1978-06-19 1979-12-27
NL8003697A (nl) * 1980-06-26 1982-01-18 Philips Nv Werkwijze voor het vervaardigen van een elektrische ontladingsinrichting voorzien van een op een glazen substraat aangebracht elektrodenpatroon en aldus verkregen elektrische ontladingsinrichting.
JPS60172135A (ja) * 1984-02-15 1985-09-05 Mitsubishi Electric Corp 平板状光源
JPS63232261A (ja) * 1987-03-20 1988-09-28 Sanyo Electric Co Ltd 平面型蛍光灯
JPS6489242A (en) * 1987-09-30 1989-04-03 Mitsubishi Electric Corp Electrode for discharge light source
NL8800478A (nl) * 1988-02-25 1989-09-18 Philips Nv Lagedrukkwikdampontladingslamp.
CH676168A5 (fr) 1988-10-10 1990-12-14 Asea Brown Boveri
US5266865A (en) * 1989-08-22 1993-11-30 Nec Corporation Structure of lead conductor for third electrode of three-electrode type electroluminescent lamp
JPH03261024A (ja) * 1990-03-09 1991-11-20 Canon Inc 電子放出装置及び画像表示装置
KR930000575B1 (ko) * 1990-10-31 1993-01-25 삼성전관 주식회사 플라즈마 표시소자와 그 제조방법
DE4140497C2 (de) * 1991-12-09 1996-05-02 Heraeus Noblelight Gmbh Hochleistungsstrahler
US5276378A (en) * 1992-01-10 1994-01-04 Neonix, Inc. Fluorescent light emitting device
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
US5525861A (en) * 1993-04-30 1996-06-11 Canon Kabushiki Kaisha Display apparatus having first and second internal spaces
DE19526211A1 (de) * 1995-07-18 1997-01-23 Patent Treuhand Ges Fuer Elektrische Gluehlampen Mbh Verfahren zum Betreiben von Entladungslampen bzw. -strahler
JP3576661B2 (ja) * 1995-10-27 2004-10-13 Ｎｅｃライティング株式会社 希ガス放電灯
KR100263773B1 (ko) * 1998-03-23 2000-08-16 구자홍 플라즈마 디스플레이 패널의 유지전극 구조
KR100547427B1 (ko) * 1999-09-14 2006-01-31 주식회사 엘지이아이 냉장고의 홈바도어 자동닫힘장치

Also Published As

Publication number Publication date
KR100385009B1 (ko) 2003-08-21
ES2209149T3 (es) 2004-06-16
DK0912992T3 (da) 2003-11-24
EP0912992A2 (fr) 1999-05-06
TW414917B (en) 2000-12-11
JP2000500917A (ja) 2000-01-25
CN1165961C (zh) 2004-09-08
DE19711893A1 (de) 1998-09-24
WO1998043278A2 (fr) 1998-10-01
WO1998043278A3 (fr) 1998-12-23
HUP0000674A2 (hu) 2000-06-28
KR20000015789A (ko) 2000-03-15
US6252352B1 (en) 2001-06-26
CN1220770A (zh) 1999-06-23
HU223639B1 (hu) 2004-10-28
DE59809916D1 (de) 2003-11-20
HUP0000674A3 (en) 2003-01-28
JP3249538B2 (ja) 2002-01-21

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