EP0901687B1 - Flachstrahler - Google Patents
Flachstrahler Download PDFInfo
- 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
Links
Images
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)
- Ultra Sonic Daignosis Equipment (AREA)
- Vehicle Step Arrangements And Article Storage (AREA)
- Apparatus Associated With Microorganisms And Enzymes (AREA)
- Physical Or Chemical Processes And Apparatus (AREA)
Description
- Figur 1
- eine schematische Darstellung des Prinzips der Erfindung,
- Figur 2
- eine schematische Darstellung des Prinzips des Standes der Technik,
- Figur 3a
- eine schematische Darstellung der Draufsicht eines Ausführungsbeispiel eines erfindungsgemäßen Flachstrahlers,
- Figur 3b
- eine schematische Darstellung des Querschnitts des Flachstrahlers aus Figur 3a.
Claims (9)
- Flachstrahler (4) mit einem zumindest teilweise transparenten und mit einer Gasfüllung gefüllten geschlossenen (5) oder von einem Gas oder Gasgemisch durchströmten offenen Entladungsgefäß aus elektrisch nichtleitendem Material und mit auf der Wandung des Entladungsgefäßes (5) angeordneten länglichen Elektroden (6, 7), wobei Kathoden (6) und Anoden (7a) wechselweise nebeneinander angeordnet sind und wobei zumindest die Anoden durch ein dielektrisches Material (10) vom Inneren des Entladungsgefäßes (5) getrennt sind, dadurch gekennzeichnet, daß zwischen benachbarten Kathoden (6) jeweils eine zusätzliche Anode (7b) angeordnet ist, d.h. daß zwischen den Nachbarkathoden (6) jeweils ein Anodenpaar (7a, 7b) angeordnet ist.
- Flachstrahler nach Anspruch 1, dadurch gekennzeichnet, daß jeweils der gegenseitige Abstand (g) der einzelnen Anoden der Anodenpaare (7a, 7b) kleiner ist als der Abstand (d) zwischen Anode (7a; 7b) und unmittelbar benachbarter Kathode (6).
- Flachstrahler nach Anspruch 1, dadurch gekennzeichnet, daß jeweils der gegenseitige Abstand (g) der einzelnen Anoden der Anodenpaare (7a, 7b) im Bereich zwischen ungefähr der halben Breite und der doppelten Breite der Anoden liegt.
- Flachstrahler nach Anspruch 3, dadurch gekennzeichnet, daß jeweils der gegenseitige Abstand (g) der einzelnen Anoden der Anodenpaare (7a, 7b) ungefähr der Breite der Anoden entspricht.
- Flachstrahler nach Anspruch 1, dadurch gekennzeichnet, daß jeweils die beiden zwischen Nachbarkathoden (6) angeordneten Anoden als gabelförmige Doppelanode (7) mit einem jeweils länglichen ersten Bereich (7a) und zweiten Bereich (7b) ausgebildet sind, wobei der erste Bereich (7a) und der zweite Bereich (7b) der Doppelanode (7) in einem vorbestimmten Abstand zueinander angeordnet sind und wobei der erste Bereich (7a) und der zweite Bereich (7b) durch einen dritten Bereich (7c) miteinander zu einer Einheit verbunden sind.
- Flachstrahler nach Anspruch 5, dadurch gekennzeichnet, daß die Länge des dritten Bereichs (7c) kürzer als ca. ein zehntel der Länge des ersten Bereichs (7a) bzw. des zweiten Bereichs (7b) ist.
- Flachstrahler nach Anspruch 5, dadurch gekennzeichnet, daß die Doppelanoden (7) teilweise aus dem Entladungsgefäß (5) gasdicht nach außen geführt sind, wobei dort jeweils der dritte Bereich (7c) jeder Doppelanode (7) als Anschluß für eine Spannungsversorgung dient.
- Flachstrahler nach Anspruch 1, dadurch gekennzeichnet, daß die Elektroden (6, 7) auf der Innenwandung des Entladungsgefäßes (5) aufgebracht sind und daß jeweils mindestens der sich innerhalb des Entladungsgefäßes (5) erstreckende Teil der Anodenpaare (7) vollständig mit einer dielektrischen Schicht (10) bedeckt ist.
- Flachstrahler nach Anspruch 1, dadurch gekennzeichnet, daß die Innenwandung des Entladungsgefäßes mindestens teilweise mit einer Leuchtstoffschicht versehen ist.
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 (de) |
EP (1) | EP0901687B1 (de) |
JP (1) | JP3037441B2 (de) |
KR (1) | KR100281343B1 (de) |
CN (1) | CN1165958C (de) |
CA (1) | CA2255758C (de) |
DE (2) | DE19711892A1 (de) |
DK (1) | DK0901687T3 (de) |
ES (1) | ES2179503T3 (de) |
HU (1) | HU223172B1 (de) |
TW (1) | TW412772B (de) |
WO (1) | WO1998043279A1 (de) |
Cited By (1)
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)
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 |
DE19936863A1 (de) * | 1999-08-05 | 2001-02-15 | Patent Treuhand Ges Fuer Elektrische Gluehlampen Mbh | Herstellungsverfahren für eine Gasentladungslampe |
DE19936865A1 (de) | 1999-08-05 | 2001-02-15 | Patent Treuhand Ges Fuer Elektrische Gluehlampen Mbh | Gasentladungslampe und zugehöriges Herstellungsverfahren |
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)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
CH676168A5 (de) | 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 |
JP3264938B2 (ja) * | 1997-03-21 | 2002-03-11 | パテント―トロイハント―ゲゼルシヤフト フユア エレクトリツシエ グリユーランペン ミツト ベシユレンクテル ハフツング | バックライト用平形蛍光ランプ及びこの平形蛍光ランプを備えた液晶表示装置 |
-
1997
- 1997-03-21 DE DE19711892A patent/DE19711892A1/de not_active Withdrawn
-
1998
- 1998-03-20 KR KR1019980709334A patent/KR100281343B1/ko not_active IP Right Cessation
- 1998-03-20 US US09/180,860 patent/US6222317B1/en not_active Expired - Lifetime
- 1998-03-20 CN CNB988003244A patent/CN1165958C/zh not_active Expired - Fee Related
- 1998-03-20 CA CA002255758A patent/CA2255758C/en not_active Expired - Fee Related
- 1998-03-20 WO PCT/DE1998/000829 patent/WO1998043279A1/de active IP Right Grant
- 1998-03-20 DK DK98925420T patent/DK0901687T3/da active
- 1998-03-20 JP JP10544686A patent/JP3037441B2/ja not_active Expired - Fee Related
- 1998-03-20 DE DE59804564T patent/DE59804564D1/de not_active Expired - Lifetime
- 1998-03-20 HU HU0000626A patent/HU223172B1/hu not_active IP Right Cessation
- 1998-03-20 EP EP98925420A patent/EP0901687B1/de not_active Expired - Lifetime
- 1998-03-20 ES ES98925420T patent/ES2179503T3/es not_active Expired - Lifetime
- 1998-03-20 TW TW087104178A patent/TW412772B/zh active
Cited By (1)
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 |
---|---|
JP3037441B2 (ja) | 2000-04-24 |
CA2255758A1 (en) | 1998-10-01 |
HUP0000626A3 (en) | 2003-02-28 |
US6222317B1 (en) | 2001-04-24 |
TW412772B (en) | 2000-11-21 |
EP0901687A1 (de) | 1999-03-17 |
JPH11514148A (ja) | 1999-11-30 |
DE59804564D1 (de) | 2002-08-01 |
CA2255758C (en) | 2006-01-24 |
WO1998043279A1 (de) | 1998-10-01 |
DE19711892A1 (de) | 1998-09-24 |
HU223172B1 (hu) | 2004-03-29 |
ES2179503T3 (es) | 2003-01-16 |
CN1165958C (zh) | 2004-09-08 |
HUP0000626A2 (hu) | 2000-06-28 |
DK0901687T3 (da) | 2002-08-19 |
KR20000015786A (ko) | 2000-03-15 |
KR100281343B1 (ko) | 2001-03-02 |
CN1220769A (zh) | 1999-06-23 |
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