EP0990259B1 - Leuchtstofflampe mit abstandshaltern und lokal verdünnter leuchtstoffschichtdicke - Google Patents
Leuchtstofflampe mit abstandshaltern und lokal verdünnter leuchtstoffschichtdicke Download PDFInfo
- Publication number
- EP0990259B1 EP0990259B1 EP99945732A EP99945732A EP0990259B1 EP 0990259 B1 EP0990259 B1 EP 0990259B1 EP 99945732 A EP99945732 A EP 99945732A EP 99945732 A EP99945732 A EP 99945732A EP 0990259 B1 EP0990259 B1 EP 0990259B1
- Authority
- EP
- European Patent Office
- Prior art keywords
- spacer
- fluorescent lamp
- lamp according
- wall
- 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 - Lifetime
Links
Images
Classifications
-
- 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
-
- 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
-
- 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 present invention relates to a fluorescent lamp for dielectric disabled discharges.
- a fluorescent lamp has one a discharge vessel filled with gas, in which at least one Wall to emit light contains a transparent surface. Also has the fluorescent lamp naturally over a fluorescent layer, with this Invention is considered the case that at least part of the phosphor layer lies on the said transparent surface.
- the electrodes and the The dielectric layer thereon will not be dealt with further here.
- Spacers can be used with such fluorescent lamps, connect the parts of the discharge vessel and at a distance from each other hold.
- These spacers can themselves be part of the discharge vessel be, e.g. B. two plates of a flat radiator discharge vessel connecting as a frame.
- it is particularly in the case of extensive areas Discharge vessels and well below atmospheric pressure Pressure of the gas filling necessary, also within the discharge vessel Spacers to be provided, which implosion of the discharge vessel should prevent this, but not directly in the sense of a limitation belong. It can also be for reasons other than the risk of implosion be advantageous with spacers in a discharge vessel an additional To carry out stabilization.
- This invention is based on the technical problem of a fluorescent lamp of the type described above so that they are good mechanical stability shows good light emission properties.
- this problem is solved with a fluorescent lamp for Dielectric barrier discharges with a gas filled Discharge vessel, at least one spacer for support at least one wall of the discharge vessel, one for visible Radiation at least partially transparent surface with a phosphor layer the spacer supports this wall on this surface, characterized in that the phosphor layer in an environment of the spacer has a reduced thickness.
- the invention provides in the area of the spacer on the partially transparent surface with the To provide a local layer thickness reduction in the phosphor layer.
- the invention includes the case that the reduced thickness (According to claim 1) is zero, so the local change in layer thickness corresponds to a recess.
- the solution according to the invention can also be used in the area the direct contact between spacers and more transparent Wall remain a somewhat darker stain, which, however, according to the invention in in a lightened environment is optically resolved. For one thing this is a question of the observer distance and the geometric extent the lighter area and the dark spot.
- a already known compensatory measure such as optical diffusers, prismatic lenses and the like a local averaging, so to speak, where the dark spot and the lightened environment are mutually exclusive compensate.
- An embodiment of this invention is that the environment mentioned the spacer has a relatively finely designed geometric structure has many surfaces, each with a different luminescent layer thickness. In doing so, a gradation can, so to speak, be made from a local Communication resulting effective luminescent layer thickness in discrete steps or as a continuous process by varying the different luminescent layer thicknesses or variation of the different areas.
- a gradation can, so to speak, be made from a local Communication resulting effective luminescent layer thickness in discrete steps or as a continuous process by varying the different luminescent layer thicknesses or variation of the different areas.
- Another idea of the invention is that the contact surface between the spacer and the wall considered here expanded as little as possible to design.
- mechanical considerations namely the avoidance of a selective loading of the (in general made of glass) through the spacer.
- this will Disadvantage in favor of minimizing that caused by the invention
- Reduction of the layer thickness of the lightenable surface is accepted.
- Prefers is to limit this contact surface two-dimensionally, d. H. to expand less in every possible direction in this plane.
- a quantitative characterization of this limitation of the investment area sensibly refers to the one bridged by the spacer Distance of the discharge vessel, so z. B. on the plate spacing one Flat radiator fluorescent lamp.
- the described small Extension of the contact surface less than 30%, preferably less than 20% or 10% of this distance.
- Another important embodiment of the invention relates to stability the discharge vessel with the spacers in the case of thermal cycles, as practically unavoidable in lamp operation.
- it has been found to be essential coefficient of thermal expansion of the various main components the discharge vessel and the spacers to match.
- the thermal expansion coefficient of the spacers should in the range of ⁇ 30% of the coefficient of expansion of the The main components of the discharge vessel are.
- the discharge vessel means those components whose thermal Expansion due to their geometric dimensions and their Function in the discharge vessel for the thermal expansion of the overall discharge vessel is essential. In the case of a flat radiator, these are e.g. B. the two plates and the frame connecting them. mismatches lead in this area, depending on the extent of the thermal loads in the Operation, internal tension and displacement of the vessel components and the spacer with each other and thus to instabilities and for loosening connections or breaking the lamp.
- Soft glasses have proven to be cheap materials for the spacers. Such soft glasses can also be used in material-related form, e.g. B. as a flour or glass solder held together by a binding material. Finally, various ceramic materials come into question, in particular Al 2 O 3 ceramic. With regard to the question of the choice of material and the coefficient of expansion, reference is made to the exemplary embodiment.
- Another way to reduce optical interference from an image of the spacer consists in a casing of the same through a fluorescent layer. This will cause the spacer to appear on the other side of the transparent wall is not more or less pronounced as shadowing, apart from the immediate area of the System between spacer and wall. Too little ultraviolet gets there Light to stimulate the phosphor to a significant extent.
- Another way to brighten the area around the spacer consists according to the invention in a reflective coating the transparent wall facing area of the spacer. Thereby the coupling of the inside of the discharge vessel becomes diffuse distributed light in the area of the phosphor layer thinned according to the invention reinforced on the wall.
- a layer of frosted glass has been found to be special in the work on this invention favorable compromise between a strongly diffuse scattering effect on the one hand and the highest possible transmission capacity in favor a high efficiency of the overall arrangement on the other hand exposed. For technical reasons, it can be useful to immediately the discharge volume-limiting layer from another technical considerations while building out certain glass the frosted glass layer is designed as an overlay.
- the transparent wall basically (in one layer) to build from a frosted glass.
- FIG. 1 shows a cross-sectional view of a flat radiator fluorescent lamp according to the invention.
- the fluorescent lamp is for dielectric disabled Discharges designed and largely built up in a known manner, whereby reference is made to the already cited prior art.
- the electrode arrangements and the for the dielectric barrier discharge characteristic dielectric Layers not treated any further.
- Figure 1 shows a detail view in which only the area of a spacer 6 with part of a base plate 1 and a summary with 2 designated cover plate around the spacer 6 is shown.
- the spacer 6 consists of a precision glass ball with a Diameter of 5 mm.
- a flat lamp fluorescent lamp with dimensions of approximately 315 mm x 239 mm x 10 mm with a thickness of the base plate 1 and the cover plate 2 of 2.5 mm each an arrangement of 48 such spacers 6 is used.
- the base plate 1 is produced with a reflection layer 7 for reflecting the visible light to the transparent ceiling plate 2.
- On the discharge volume side of the reflection layer 7 and the A phosphor layer 3 is provided in each case for the ceiling plate 2.
- the spacer 6 is attached to the base plate 1 with a glass solder 5, which as viscous mixture of a soft glass powder with a binder applied and dried and hardened by a thermal treatment becomes.
- the spacer 6 is due to its spherical shape almost punctiform, with the remaining unavoidable contact surface from an elastic deformation and unevenness of those involved Surfaces results.
- Around this contact surface between the spacers 6 and the ceiling panel 2 is the phosphor layer 3 on the ceiling panel obliterated; d. H. the contact surface lies in the middle of a recess 8 the phosphor layer.
- the glass ball forming the spacer 6 has another one Fluorescent layer 3 'coated. Due to its finite thickness this increases Fluorescent layer 3 'the contact surface between the spacer 6 and the ceiling panel 2 slightly, as already stated, the phosphor layer 3 'hardly contributes to shading.
- the ultraviolet generated in a dielectric barrier gas discharge Light is converted into visible light in the phosphor layers 3 and 3 ', with a largely diffuse distribution of visible light results in the discharge volume. This is due to the reflection on the reflective layer 7 supports to the losses in the area of the base plate 1 too minimize. Accordingly, in the phosphor layer free area 8 couple visible light around the spacer 6, the Contribution in particular of the half of the ceiling plate 2 facing Phosphor layer 3 'on the spacer 6 is particularly important.
- Figure 1 also shows that the ceiling panel 2 is composed of two sub-layers, namely a lower glass layer 2a, which like the base plate 1 for reasons of material technology for a more detailed below B270 glass, and an overlying frosted glass overlay 2b for the diffuse scattering of the emerging visible light.
- This material-technical reasons relate on the one hand to the processing properties, namely a conveniently located softening temperature of 708 ° C, further good chemical resistance to the plasmas occurring as well against alkali migration within the glass, which was discussed in more detail below thermal expansion coefficients and finally favorable Transmission properties.
- So-called DBEF films from the manufacturer 3M are used, which are essentially partially reflective Are polarizers. Matched to the polarization properties A liquid crystal display can thus reduce the yield in use for liquid crystal screen backlighting can be further increased.
- the combination of the frosted glass overlay 2b carries along the prism sheet 4 for a largely smoothing of the inhomogeneities the luminance distribution, that of the direct contact of the spacer 6 on the ceiling plate 2 caused small dark spots the lighter environment in the area of the fluorescent recess 8 is compensated becomes.
- the lighter environment in area 8 compensates for this Absence of the light contribution from the area of the base plate 1 under the spacer 6, in particular from the area of the glass solder 5.
- the glass ball forming the spacer 6 could in its in the figure top half instead of the phosphor layer 3 'or below provided a reflection layer corresponding to the reflection layer 7 his.
- FIG. 2 shows a cross-sectional illustration largely comparable to FIG. 1, however, one edge of the flat panel fluorescent lamp is shown.
- This glass frame is on its top and on its underside via glass solder layers 5 with the base plate 1 and Ceiling plate 2 connected. For reasons of stability, it is still here no minimization of a contact surface on the ceiling plate 2 is provided. Rather, the glass frame 6 'has the cross-sectional shape of an upright Rectangle with flat contact up and down.
- the spacer is to the side of the discharge volume, to the right in the figure or the glass frame 6 'is provided with a phosphor layer 3', which has the analog function to the corresponding phosphor layer the glass ball in the previous figure.
- a dilution 8 in the phosphor layer 3 of the ceiling panel 2 is formed.
- the layer thickness of the phosphor layer 3 decreases with decreasing lateral distance from the spacer 6 'to approximately zero at the Place of contact with the phosphor layer 3 '.
- the structure of the layers corresponds completely to the structure from Figure 1 and is not described here. It's just about to a cross section through another point of the same thing Layer structure.
- a typical width for area 8 the reduction in layer thickness is up to 1 cm and corresponds to the darkened Area without reduction in layer thickness.
- the effective glowing Area can be increased by the smoothing effect of the frosted glass overlay 2b or an external optical diffuser and the Prism film 4 for "smearing" the increased brightness in area 8 beyond the already darkened area of the glass frame 6 ' provides.
- the glass frame 6 ' is in the form shown as a rectangle in one Ground plan of rectangular flat radiator geometry. So that results there is an expansion of the illuminated area on all sides of the flat spotlight and thus overall an enlarged "visible diagonal" of the luminous area.
- soft glasses In general, a distinction is made between soft glasses and hard glasses, the distinguishing criterion being the level of the softening temperature (with 10 7.6 dPas). In this invention, predominantly intermediate glasses but also soft glasses are used, specifically in a range of the thermal expansion coefficient of 9 x 10 -6 K -1 ⁇ 30% (preferably 20%, 10%). Hard glasses usually fall in the range of 4 x 10 -6 K -1 and soft glasses in the range of 9 x 10 -6 K -1 .
- Glass B270 from the manufacturer DESAG (Deutsche Spezialglas AG in Grünenplan) with a coefficient of expansion of 9.5 x 10 -6 K -1 and a softening temperature of 708 ° C is particularly preferred here. Most soft glasses also lie in this range of the thermal expansion coefficient, which is why soft glass or materials based on soft glass are preferred for the spacers.
- a so-called AR glass (No. 8350) from the manufacturer mentioned with a coefficient of thermal expansion of 9.1 x 10 -6 K -1 is also suitable. (The technical reasons already mentioned for B270 also largely apply to the AR glass).
- Al 2 O 3 ceramic can also be used with an expansion coefficient of 8.5 - 8.8 x 10 -6 K -1 .
- Quartz glass is disadvantageous because it is used more frequently in this technical area due to the good UV transparency. Firstly, its average linear expansion coefficient is about 4.5 - 5.9 x 10 -7 K -1 and is thus only about 5-6% of the coefficient of the material used for the discharge vessel. In addition, quartz glass has the disadvantageous property of poor adhesion of most of the phosphors in question. It is also expensive and is therefore only considered in exceptional cases for the manufacture of the discharge vessel itself and basically also of the spacers.
Landscapes
- Physics & Mathematics (AREA)
- Engineering & Computer Science (AREA)
- Plasma & Fusion (AREA)
- Electromagnetism (AREA)
- Vessels And Coating Films For Discharge Lamps (AREA)
Description
Claims (14)
- Leuchtstofflampe für dielektrisch behinderte Entladungen mit einem mit einer Gasfüllung gefüllten Entladungsgefäß, (1, 2, 6'), mindestens einem Abstandshalter (6, 6') zum Abstützen mindestens einer Wand (2) des Entladungsgefäßes, die eine für sichtbare Strahlung zumindest teilweise transparente Fläche mit einer Leuchtstoffschicht (3) aufweist, wobei der Abstandshalter (6, 6') diese Wand (2) an dieser Fläche abstützt,
dadurch gekennzeichnet, daß die Leuchtstoffschicht (3) in einer Umgebung (8) des Abstandshalters (6, 6') eine verminderte Dicke aufweist. - Leuchtstofflampe nach Anspruch 1, bei der die Umgebung eine geometrische Struktur aus Flächen unterschiedlicher Leuchtstoffschichtdicke aufweist.
- Leuchtstofflampe nach Anspruch 1 oder 2, bei der die Umgebung (8) Flächen ohne Leuchtstoffschicht aufweist.
- Leuchtstofflampe nach einem der vorstehenden Ansprüche, bei der der Abstandshalter (6, 6') die Wand (2) durch eine gering ausgedehnte Anlage an der Wand abstützt.
- Leuchtstofflampe nach Anspruch 4, bei der die Anlage in jeder Richtung in ihrer Ebene gering ausgedehnt ist.
- Leuchtstofflampe nach Anspruch 4 oder 5, bei der die geringe Ausdehnung weniger als 30 % des Plattenabstandes beträgt.
- Leuchtstofflampe nach einem der vorstehenden Ansprüche, bei der der Abstandshalter (6, 6') einen thermischen Ausdehnungskoeffizienten aufweist, der mit einer Toleranz von ± 30 % demjenigen der Hauptbestandteile (1, 2, 6') des Entladungsgefäßes entspricht.
- Leuchtstofflampe nach einem der vorstehenden Ansprüche, bei der der Abstandshalter (6, 6') im wesentlichen aus Weichglas, einem im wesentlichen weichglasenthaltenden Material oder einem Keramikmaterial besteht.
- Leuchtstofflampe nach einem der vorstehenden Ansprüche, bei der der Abstandshalter (6) verbindungsmaterialfrei an der Wand (2) anliegt.
- Leuchtstofflampe nach einem der vorstehenden Ansprüche, bei der der Abstandshalter (6, 6') eine äußere Leuchtstoffbeschichtung (3') aufweist.
- Leuchtstofflampe nach einem der vorstehenden Ansprüche, bei der der Abstandshalter in einem der Wand zugewandten Bereich eine reflektierende Beschichtung aufweist.
- Leuchtstofflampe nach einem der vorstehenden Ansprüche, bei der die Fläche (2) eine Milchglasschicht (2b) aufweist.
- Leuchtstofflampe nach einem der vorstehenden Ansprüche, außer Anspruch 5 und Anspruch 9, bei der der Abstandshalter (6') eine Begrenzungswand des Entladungsgefäßes (1, 2, 6') bildet.
- Leuchtstofflampe nach Anspruch 13, bei der der Abstandshalter (6') ein Rahmen einer Flachstrahler-Leuchtstofflampe ist, der eine Bodenplatte (1) und eine die Wand bildende Deckenplatte (2) verbindet.
Applications Claiming Priority (3)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
DE19817476A DE19817476B4 (de) | 1998-04-20 | 1998-04-20 | Leuchtstofflampe mit Abstandshaltern und lokal verdünnter Leuchtstoffschichtdicke |
DE19817476 | 1998-04-20 | ||
PCT/DE1999/001093 WO1999054914A1 (de) | 1998-04-20 | 1999-04-09 | Leuchtstofflampe mit abstandshaltern und lokal verdünnter leuchtstoffschichtdicke |
Publications (2)
Publication Number | Publication Date |
---|---|
EP0990259A1 EP0990259A1 (de) | 2000-04-05 |
EP0990259B1 true EP0990259B1 (de) | 2004-06-30 |
Family
ID=7865125
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
EP99945732A Expired - Lifetime EP0990259B1 (de) | 1998-04-20 | 1999-04-09 | Leuchtstofflampe mit abstandshaltern und lokal verdünnter leuchtstoffschichtdicke |
Country Status (9)
Country | Link |
---|---|
US (1) | US6249079B1 (de) |
EP (1) | EP0990259B1 (de) |
JP (1) | JP3437185B2 (de) |
KR (1) | KR100351341B1 (de) |
CA (1) | CA2295161C (de) |
DE (2) | DE19817476B4 (de) |
HU (1) | HU224261B1 (de) |
TW (1) | TW416081B (de) |
WO (1) | WO1999054914A1 (de) |
Families Citing this family (12)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE19960728B4 (de) | 1999-12-16 | 2011-03-31 | Osram Gesellschaft mit beschränkter Haftung | Vorrichtung zur schattenfreien Hinterleuchtung von großflächigen Displays |
DE10048410A1 (de) * | 2000-09-29 | 2002-04-11 | Patent Treuhand Ges Fuer Elektrische Gluehlampen Mbh | Dielektrische Barriere-Entladungslampe |
JP4493064B2 (ja) * | 2000-10-06 | 2010-06-30 | 日本電気株式会社 | 平面型蛍光ランプの固定構造、及び液晶表示装置 |
DE10134965A1 (de) * | 2001-07-23 | 2003-02-06 | Patent Treuhand Ges Fuer Elektrische Gluehlampen Mbh | Flache Entladungslampe |
DE10140355A1 (de) * | 2001-08-17 | 2003-02-27 | Patent Treuhand Ges Fuer Elektrische Gluehlampen Mbh | Entladungslampe mit Zündhilfe |
US6756619B2 (en) * | 2002-08-26 | 2004-06-29 | Micron Technology, Inc. | Semiconductor constructions |
KR20050023858A (ko) * | 2003-09-03 | 2005-03-10 | 삼성전자주식회사 | 면광원장치, 이의 제조 방법 및 이를 이용한 액정표시장치 |
KR20060027520A (ko) * | 2004-09-23 | 2006-03-28 | 삼성코닝 주식회사 | 평판 램프의 제조방법 |
US7544260B2 (en) * | 2004-10-20 | 2009-06-09 | Mark Banister | Micro thruster, micro thruster array and polymer gas generator |
DE102005030077A1 (de) * | 2005-06-27 | 2007-01-11 | Schott Ag | Mattglas-Scheibe sowie Whiteboard mit Mattglas-Scheibe |
JP4731531B2 (ja) * | 2006-11-14 | 2011-07-27 | 三星エスディアイ株式会社 | 発光装置及びこの発光装置を光源として用いる表示装置 |
KR102186434B1 (ko) | 2019-07-04 | 2020-12-03 | 김성원 | 로터리 댐퍼 |
Family Cites Families (12)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
BE739303A (de) * | 1968-10-02 | 1970-03-24 | ||
JP2629677B2 (ja) * | 1986-08-11 | 1997-07-09 | 富士通株式会社 | ガス放電パネル |
CH676168A5 (de) * | 1988-10-10 | 1990-12-14 | Asea Brown Boveri | |
US4978888A (en) * | 1989-07-18 | 1990-12-18 | Thomas Electronics Incorporated | Thick-film integrated flat fluorescent lamp |
JPH05151934A (ja) * | 1991-11-27 | 1993-06-18 | Nec Kansai Ltd | 平面発光型放電灯及びその製造方法 |
US5232549A (en) * | 1992-04-14 | 1993-08-03 | Micron Technology, Inc. | Spacers for field emission display fabricated via self-aligned high energy ablation |
DE4311197A1 (de) | 1993-04-05 | 1994-10-06 | Patent Treuhand Ges Fuer Elektrische Gluehlampen Mbh | Verfahren zum Betreiben einer inkohärent strahlenden Lichtquelle |
JP3223651B2 (ja) | 1993-06-25 | 2001-10-29 | ウシオ電機株式会社 | 誘電体バリヤ放電ランプ |
US5734224A (en) * | 1993-11-01 | 1998-03-31 | Canon Kabushiki Kaisha | Image forming apparatus and method of manufacturing the same |
US5714840A (en) * | 1995-03-07 | 1998-02-03 | Asahi Glass Company Ltd. | Plasma display panel |
DE19526211A1 (de) * | 1995-07-18 | 1997-01-23 | Patent Treuhand Ges Fuer Elektrische Gluehlampen Mbh | Verfahren zum Betreiben von Entladungslampen bzw. -strahler |
DE19636965B4 (de) * | 1996-09-11 | 2004-07-01 | Patent-Treuhand-Gesellschaft für elektrische Glühlampen mbH | Elektrische Strahlungsquelle und Bestrahlungssystem mit dieser Strahlungsquelle |
-
1998
- 1998-04-20 DE DE19817476A patent/DE19817476B4/de not_active Expired - Fee Related
-
1999
- 1999-04-09 KR KR1019997011947A patent/KR100351341B1/ko not_active IP Right Cessation
- 1999-04-09 JP JP55230199A patent/JP3437185B2/ja not_active Expired - Fee Related
- 1999-04-09 HU HU0003837A patent/HU224261B1/hu not_active IP Right Cessation
- 1999-04-09 DE DE59909844T patent/DE59909844D1/de not_active Expired - Fee Related
- 1999-04-09 WO PCT/DE1999/001093 patent/WO1999054914A1/de active IP Right Grant
- 1999-04-09 US US09/446,014 patent/US6249079B1/en not_active Expired - Fee Related
- 1999-04-09 CA CA002295161A patent/CA2295161C/en not_active Expired - Fee Related
- 1999-04-09 EP EP99945732A patent/EP0990259B1/de not_active Expired - Lifetime
- 1999-04-14 TW TW088105936A patent/TW416081B/zh not_active IP Right Cessation
Also Published As
Publication number | Publication date |
---|---|
JP2000513497A (ja) | 2000-10-10 |
EP0990259A1 (de) | 2000-04-05 |
HU224261B1 (hu) | 2005-07-28 |
TW416081B (en) | 2000-12-21 |
US6249079B1 (en) | 2001-06-19 |
WO1999054914A1 (de) | 1999-10-28 |
KR100351341B1 (ko) | 2002-09-05 |
HUP0003837A3 (en) | 2003-02-28 |
HUP0003837A2 (hu) | 2001-02-28 |
CA2295161C (en) | 2007-07-24 |
DE59909844D1 (de) | 2004-08-05 |
JP3437185B2 (ja) | 2003-08-18 |
CA2295161A1 (en) | 1999-10-28 |
DE19817476A1 (de) | 1999-11-04 |
DE19817476B4 (de) | 2004-03-25 |
KR20010013925A (ko) | 2001-02-26 |
Similar Documents
Publication | Publication Date | Title |
---|---|---|
EP0990259B1 (de) | Leuchtstofflampe mit abstandshaltern und lokal verdünnter leuchtstoffschichtdicke | |
EP1847859B1 (de) | Verfahren zur Herstellung einer Beleuchtungsvorrichtung und Beleuchtungsvorrichtung | |
DE69925182T2 (de) | Transparente Frontflächenbeleuchtungseinrichtung in einer Flüssigkristallanzeige | |
DE602005005573T2 (de) | Flache Fluoreszenzlampe und Flüssigkristallanzeige mit einer solchen Lampe | |
DE69014098T2 (de) | Strahlungsaussendende paneele und anzeigeanordnungen. | |
WO2002027761A1 (de) | Entladungslampe für dielektrisch behinderte entladungen mit stützelementen zwischen einer bodenplatte und einer deckenplatte | |
DE69830132T2 (de) | Ausgedehnte und transparente Beleuchtungseinrichtung | |
DE202005004459U1 (de) | Glas für Leuchtmittel mit außenliegenden Elektroden | |
DE102006048934A1 (de) | Beleuchtungssystem | |
DE3587170T2 (de) | Anzeigeeinheit. | |
DE19817480B4 (de) | Flachstrahlerlampe für dielektrisch behinderte Entladungen mit Abstandshaltern | |
DE2855142C2 (de) | Leuchtschirm einer Bildanzeigeröhre | |
DE3909715A1 (de) | Flaechige leuchtstofflampe | |
EP1004137B1 (de) | Entladungslampe mit dielektrisch behinderten elektroden | |
EP1050066B1 (de) | Entladungslampe mit dielektrisch behinderten elektroden | |
DE60224969T2 (de) | Leuchtstofflampe mit Kaltkathoden und mit doppelwandiger Gefäss-Struktur | |
DE10203834A1 (de) | Wechselspannungsbetriebenes Plasmabauteil für Flachlampen und Verfahren zum Herstellen desselben | |
DE3851556T2 (de) | Flache Leuchtstofflampe für Flüssigkristallanzeige. | |
DE112004000259B4 (de) | Flache Leuchtstofflampe | |
EP0992060B1 (de) | Leuchtstofflampe mit auf die geometrische entladungsverteilung abgestimmter leuchtstoffschichtdicke | |
DE102005030667B4 (de) | Fluoreszenzlampe flachen Typs und Flüssigkristallanzeige-Vorrichtung, dieselbe aufweisend | |
DE19919363A1 (de) | Entladungslampe mit Abstandshalter | |
DE102005030668A1 (de) | Direkt-Hintergrundlichteinheit | |
DE10214156A1 (de) | Entladungslampe für dielektrisch behinderte Entladungen mit gewellter Deckenplattenstruktur | |
DE102004037012B4 (de) | Direkt-Typ-Hinterlichtanordnung |
Legal Events
Date | Code | Title | Description |
---|---|---|---|
PUAI | Public reference made under article 153(3) epc to a published international application that has entered the european phase |
Free format text: ORIGINAL CODE: 0009012 |
|
17P | Request for examination filed |
Effective date: 19991207 |
|
AK | Designated contracting states |
Kind code of ref document: A1 Designated state(s): BE DE FR GB IT NL |
|
GRAP | Despatch of communication of intention to grant a patent |
Free format text: ORIGINAL CODE: EPIDOSNIGR1 |
|
GRAS | Grant fee paid |
Free format text: ORIGINAL CODE: EPIDOSNIGR3 |
|
GRAA | (expected) grant |
Free format text: ORIGINAL CODE: 0009210 |
|
AK | Designated contracting states |
Kind code of ref document: B1 Designated state(s): BE DE FR GB IT NL |
|
REG | Reference to a national code |
Ref country code: GB Ref legal event code: FG4D Free format text: NOT ENGLISH |
|
REF | Corresponds to: |
Ref document number: 59909844 Country of ref document: DE Date of ref document: 20040805 Kind code of ref document: P |
|
GBT | Gb: translation of ep patent filed (gb section 77(6)(a)/1977) |
Effective date: 20040910 |
|
ET | Fr: translation filed | ||
PLBE | No opposition filed within time limit |
Free format text: ORIGINAL CODE: 0009261 |
|
STAA | Information on the status of an ep patent application or granted ep patent |
Free format text: STATUS: NO OPPOSITION FILED WITHIN TIME LIMIT |
|
26N | No opposition filed |
Effective date: 20050331 |
|
PGFP | Annual fee paid to national office [announced via postgrant information from national office to epo] |
Ref country code: DE Payment date: 20090619 Year of fee payment: 11 |
|
PGFP | Annual fee paid to national office [announced via postgrant information from national office to epo] |
Ref country code: FR Payment date: 20100423 Year of fee payment: 12 |
|
PGFP | Annual fee paid to national office [announced via postgrant information from national office to epo] |
Ref country code: NL Payment date: 20100407 Year of fee payment: 12 Ref country code: IT Payment date: 20100427 Year of fee payment: 12 |
|
PGFP | Annual fee paid to national office [announced via postgrant information from national office to epo] |
Ref country code: BE Payment date: 20100419 Year of fee payment: 12 |
|
PGFP | Annual fee paid to national office [announced via postgrant information from national office to epo] |
Ref country code: GB Payment date: 20100412 Year of fee payment: 12 |
|
PG25 | Lapsed in a contracting state [announced via postgrant information from national office to epo] |
Ref country code: DE Free format text: LAPSE BECAUSE OF NON-PAYMENT OF DUE FEES Effective date: 20101103 |
|
BERE | Be: lapsed |
Owner name: *PATENT-TREUHAND-G.- FUR ELEKTRISCHE GLUHLAMPEN M. Effective date: 20110430 |
|
REG | Reference to a national code |
Ref country code: NL Ref legal event code: V1 Effective date: 20111101 |
|
GBPC | Gb: european patent ceased through non-payment of renewal fee |
Effective date: 20110409 |
|
REG | Reference to a national code |
Ref country code: FR Ref legal event code: ST Effective date: 20111230 |
|
PG25 | Lapsed in a contracting state [announced via postgrant information from national office to epo] |
Ref country code: FR Free format text: LAPSE BECAUSE OF NON-PAYMENT OF DUE FEES Effective date: 20110502 Ref country code: NL Free format text: LAPSE BECAUSE OF NON-PAYMENT OF DUE FEES Effective date: 20111101 Ref country code: BE Free format text: LAPSE BECAUSE OF NON-PAYMENT OF DUE FEES Effective date: 20110430 |
|
PG25 | Lapsed in a contracting state [announced via postgrant information from national office to epo] |
Ref country code: GB Free format text: LAPSE BECAUSE OF NON-PAYMENT OF DUE FEES Effective date: 20110409 Ref country code: IT Free format text: LAPSE BECAUSE OF NON-PAYMENT OF DUE FEES Effective date: 20110409 |