EP0824761B1 - Verfahren zum betreiben von entladungslampen - Google Patents
Verfahren zum betreiben von entladungslampen Download PDFInfo
- Publication number
- EP0824761B1 EP0824761B1 EP96914842A EP96914842A EP0824761B1 EP 0824761 B1 EP0824761 B1 EP 0824761B1 EP 96914842 A EP96914842 A EP 96914842A EP 96914842 A EP96914842 A EP 96914842A EP 0824761 B1 EP0824761 B1 EP 0824761B1
- Authority
- EP
- European Patent Office
- Prior art keywords
- discharge
- voltage pulses
- lamp
- dielectric
- electrodes
- 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
- 238000000034 method Methods 0.000 title claims description 20
- 230000005855 radiation Effects 0.000 claims description 17
- 230000003595 spectral effect Effects 0.000 claims description 12
- 238000009826 distribution Methods 0.000 claims description 7
- 230000001360 synchronised effect Effects 0.000 claims description 3
- 239000011248 coating agent Substances 0.000 claims 1
- 238000000576 coating method Methods 0.000 claims 1
- 229910052751 metal Inorganic materials 0.000 description 23
- 239000002184 metal Substances 0.000 description 20
- 230000004888 barrier function Effects 0.000 description 10
- OAICVXFJPJFONN-UHFFFAOYSA-N Phosphorus Chemical compound [P] OAICVXFJPJFONN-UHFFFAOYSA-N 0.000 description 8
- 229910052754 neon Inorganic materials 0.000 description 7
- GKAOGPIIYCISHV-UHFFFAOYSA-N neon atom Chemical compound [Ne] GKAOGPIIYCISHV-UHFFFAOYSA-N 0.000 description 7
- 230000008901 benefit Effects 0.000 description 6
- 230000005670 electromagnetic radiation Effects 0.000 description 4
- 229910052756 noble gas Inorganic materials 0.000 description 4
- 238000001228 spectrum Methods 0.000 description 4
- 238000007796 conventional method Methods 0.000 description 3
- 230000005284 excitation Effects 0.000 description 3
- 230000004907 flux Effects 0.000 description 3
- 239000000203 mixture Substances 0.000 description 3
- 238000011017 operating method Methods 0.000 description 3
- XKRFYHLGVUSROY-UHFFFAOYSA-N Argon Chemical compound [Ar] XKRFYHLGVUSROY-UHFFFAOYSA-N 0.000 description 2
- 239000003990 capacitor Substances 0.000 description 2
- 230000008878 coupling Effects 0.000 description 2
- 238000010168 coupling process Methods 0.000 description 2
- 238000005859 coupling reaction Methods 0.000 description 2
- 238000004519 manufacturing process Methods 0.000 description 2
- 150000002835 noble gases Chemical class 0.000 description 2
- 238000001208 nuclear magnetic resonance pulse sequence Methods 0.000 description 2
- 230000003287 optical effect Effects 0.000 description 2
- 206010001497 Agitation Diseases 0.000 description 1
- 229910052786 argon Inorganic materials 0.000 description 1
- 230000004397 blinking Effects 0.000 description 1
- 230000000295 complement effect Effects 0.000 description 1
- 230000007423 decrease Effects 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 239000000945 filler Substances 0.000 description 1
- 239000007789 gas Substances 0.000 description 1
- 239000011521 glass Substances 0.000 description 1
- 150000004820 halides Chemical class 0.000 description 1
- 229910052743 krypton Inorganic materials 0.000 description 1
- DNNSSWSSYDEUBZ-UHFFFAOYSA-N krypton atom Chemical compound [Kr] DNNSSWSSYDEUBZ-UHFFFAOYSA-N 0.000 description 1
- 239000004973 liquid crystal related substance Substances 0.000 description 1
- 238000004020 luminiscence type Methods 0.000 description 1
- 230000003071 parasitic effect Effects 0.000 description 1
- 239000002245 particle Substances 0.000 description 1
- 230000009467 reduction Effects 0.000 description 1
- 238000004904 shortening Methods 0.000 description 1
- 239000005341 toughened glass Substances 0.000 description 1
- 238000011144 upstream manufacturing Methods 0.000 description 1
- 238000004804 winding Methods 0.000 description 1
- 229910052724 xenon Inorganic materials 0.000 description 1
- FHNFHKCVQCLJFQ-UHFFFAOYSA-N xenon atom Chemical compound [Xe] FHNFHKCVQCLJFQ-UHFFFAOYSA-N 0.000 description 1
- 229910019901 yttrium aluminum garnet Inorganic materials 0.000 description 1
Images
Classifications
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01J—ELECTRIC DISCHARGE TUBES OR DISCHARGE LAMPS
- H01J61/00—Gas-discharge or vapour-discharge lamps
- H01J61/02—Details
- H01J61/38—Devices for influencing the colour or wavelength of the light
- H01J61/42—Devices for influencing the colour or wavelength of the light by transforming the wavelength of the light by luminescence
-
- 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
Definitions
- the invention relates to a method for operating discharge lamps according to the preamble of claim 1.
- the method particularly relates to the operation of low-pressure noble gas discharge lamps, such as in automotive engineering can be used for signal and display purposes.
- From DE-U-89 04 853 is a fluorescent lamp operated with AC voltage known. Be inside the discharge vessel of the lamp spiral-shaped glow electrodes and one from the inside of the discharge space metallic element separated by a dielectric. By means of the heated spiral electrodes becomes one inside the discharge vessel Discharge generated. In addition, the metallic element is in operation put a tension. In this way, the metallic element acts as Capacitor plate on the discharge such that the electrical resistance of the discharge plasma is increased, locally the more, the larger the current density is. The aim is to use the capacitor plate to control the lamp current and consequently spatially homogenize the luminance of the lamp as well as to increase the efficiency of the lamp.
- EP-A-0 550 047 describes a flat one operated with AC voltage Fluorescent lamp disclosed, the discharge vessel formed by flat plates is. On the inside of the plates is a pair of flat, with dielectric glass layers covered electrodes arranged. additionally the lamp has a pair of galvanic electrodes inside. Both Electrode pairs are either different or high-frequency operated at the same frequency, in the latter case 90 ° out of phase.
- the sheet-like electrodes capacitively generate a plasma that is stable and is spatially uniform.
- the galvanic electrodes generate a low pressure discharge with high luminous efficacy, but spatially uneven is. Both discharges complement each other to form a flat light source high luminance and good uniformity. Because of this and because of it
- the flat geometry makes the lamp particularly suitable for backlighting of liquid crystal displays.
- an elongated lamp is known with a tubular discharge vessel which is hermetically sealed at both ends and contains neon as the filling gas.
- the inner wall of the discharge vessel is optionally provided with a phosphor layer, in particular with Y 3 Al 5 O 12 : Ce.
- the discharge vessel has two unheated electrodes that face each other and are connected to power supplies.
- the power supply lines which are led outwards at the ends of the discharge vessel, a consequence of voltage pulses.
- the voltage pulses are different from each other separated by relatively long breaks (low duty cycle). The break times are required for setting the desired color location of the lamp.
- An object of the invention is to provide a method for pulsed operation of discharge lamps with which the spectral distribution of the radiation specifically emitted by the discharge lamps and the required amount of voltage pulses compared to conventional Procedure can be reduced.
- the basic idea of the invention is - in addition to the conventional pulsed discharge between the lamp electrodes of a discharge lamp - A dielectric barrier discharge in the discharge vessel too produce.
- the spectral distribution of the Discharge lamp specifically affects the radiation emitted and the required Voltage pulses in comparison to conventional methods reduced.
- Dielectric-barrier discharges differ from conventional ones (unhindered) discharges by either an electrode (one-sided dielectric discharge) or both electrodes (two-sided dielectric barrier discharge) by means of a dielectric layer of the discharge is or are separated.
- the dielectric layer in Shape of an at least partial covering of at least one electrode be realized.
- the dielectric layer can also pass through the wall of the discharge vessel itself by the electrode (s) outside of the discharge vessel, is arranged approximately on the surface (are).
- such electrodes are referred to below as “dielectric electrodes”. To distinguish this from the following electrodes, which are immediate, i.e. without intermediate dielectric Interface, adjacent to the discharge, shortening as "galvanic Electrodes ".
- the method according to the invention provides - in addition to that for generation the consequence of the dielectric unimpeded pulsed discharge of voltage pulses - the use of a time-varying voltage to generate the dielectric barrier discharge.
- time-varying Voltages are suitable e.g. AC voltages and in particular Sequences of voltage pulses, the individual voltage pulses each are separated from each other by breaks.
- Suitable pulse shapes e.g. triangular and rectangular.
- the pulse width is typically in the range between 0.1 ⁇ s and 50 ⁇ s.
- Essential for an efficient Radiation generation is that the pulses are separated by pauses.
- typical Pulse-pause ratios are in the range between 0.001 and 0.1.
- the pulse sequences disclosed in WO 94/23442 are also particularly suitable.
- the optical spectrum of the radiation emitted by the lamp is through the ratio of the conventional (dielectric free) or the dielectrically impeded discharge coupled medium electrical Achievements can be influenced.
- the reason for this is the different Particle kinetics of both types of discharge.
- the ratio of the coupled electrical power changes accordingly also the radiation components of the respective spectral components of both Discharge types on the total radiation of the discharge lamp and consequently also the entire spectrum or the color locus.
- the ratio of the services is determined by the pulse train (s), in particular the Time periods and amplitudes of the pulses and pauses or, if applicable, the frequency the AC voltage, the electrode configurations as well as type and pressure affects the lamp filling.
- Typical electrical power ratios from unhindered unloading to disabled unloading lie in the Range between 0.01 and 100, preferably in the range between 0.5 and 10.
- the influencing of the color locus can be done by using a suitable one Phosphor are supported.
- a suitable one Phosphor are supported.
- the inner wall of the discharge vessel provided with a fluorescent layer, which the UV or VUV radiation of the discharge converted into light.
- ionizable filling and possibly the phosphor layer depends on the application.
- Noble gases are particularly suitable, e.g. Neon, argon, krypton and xenon as well as mixtures of noble gases.
- other fillers can also be used, e.g. all those who are usually used in light production, in particular Hg and rare gas-Hg mixtures as well as rare earths and their halides.
- Unhindered discharges result in a relatively broadband excitation of the atoms of the filling, ie atomic states of various excitation levels are occupied.
- this excitation includes, for example, the neon lines in the red area of the optical spectrum.
- the use of the dielectric barrier discharge and particularly the use of the pulsed dielectric barrier discharge permits selective coupling of the energy in such a way that essentially only the resonance level and a few levels in the immediate vicinity of the resonance level are excited.
- the atoms in metastable states very efficiently form short-lived, excited molecules, so-called excimers, in the case of neon, for example, Ne 2 * . When the excimers decay, molecular band radiation arises.
- Ne 2 * has an intensity maximum at approximately 85 nm.
- This short-wave invisible radiation can be converted into visible radiation, in the aforementioned example in the yellow spectral range, by phosphors, for example Y 3 Al 5 O 12 : Ce.
- the two pulse trains synchronized with each other in order to ensure that lamp operation is uniform over time to ensure.
- this is achieved by that the same sequence of voltage pulses both for generating the dielectrically disabled as well as the dielectrically unimpeded discharge is used.
- the pulsed dielectric disabled unloaded unloaded unloading in time upstream that enough starting electrons for the unhindered Unloading be provided. This way, the disabled Discharge - in addition to the advantage of independent adjustability the spectral distribution of the emitted radiation - necessary for the operation of the required voltage can be reduced.
- a permanent lowering of the necessary voltage pulses for the Unhindered discharge can be achieved by the fact that the dielectric pulses applied to those of the galvanic electrodes Lead electrodes in time.
- this requires either two synchronizable supply devices or a specific measure, around the two pulse sequences in the desired manner to postpone.
- the electrode configurations are targeted chosen so that the ignition voltage of the dielectric barrier discharge is smaller than that of the unhindered discharge.
- the first requirement is the current supply of a galvanic and a dielectric electrode electrically contacted with each other.
- the second condition requires a sufficiently short distance between the dielectrically handicapped electrodes compared to the unhindered. In the case of tubular discharge vessels with longitudinally arranged ones This can be easily accomplished by galvanic electrodes, for example two electrodes on the outer wall of the vessel transverse to be ordered.
- a dielectric barrier Discharge uses, which on the one hand efficiently stimulates fluorescent UV or. VUV radiation generated and on the other hand the operating voltage of the unhindered discharge reduced.
- Discharge lamp suitable method shows in the simplest Only one version apart from the two galvanic electrodes additional third electrode.
- a first of the two galvanic electrodes takes on two functions in this case. For one, it serves how usual, together with the second galvanic electrode of the generation conventional unhindered unloading. On the other hand, it serves together with the additional third electrode generating a one-sided dielectric barrier discharge.
- the third Electrode must necessarily be a dielectric electrode.
- an additional fourth electrode is advantageous.
- the fourth, dielectric electrode then also serves together with the third dielectric electrode generating a double-sided dielectric disabled discharge.
- the shape of the dielectric electrodes is advantageously based on the shape of the Discharge vessel adapted. Suitable for tubular discharge vessels there are, for example, strip-shaped metallic electrodes that run along the Lamp longitudinal axis are arranged.
- the dielectric electrode (s) is (are) arranged on the outer wall of the discharge vessel, e.g. as applied metal strip or vapor-deposited thin strip-like metal layer (s).
- the advantage of this solution is that additional gas-tight Bushings and dielectric layers can be omitted.
- a conventional lamp can serve as the starting point.
- the variant is (are) the metal strips in the outer wall of the discharge vessel embedded or embedded or completely in included the wall of the discharge vessel. Through these measures the metal strips are fixed with the discharge lamp. The disadvantage is an increased manufacturing effort and thus higher costs.
- the dielectric electrodes are included one of the current leads of the galvanic electrodes is connected.
- the Advantage compared to separate power supply for the electrodes is that only a single supply device is required for both discharges is.
- a separate supply for the galvanic or dielectric electrodes the possibility of the respective supply device to the special requirements of the type of discharge in question optimize.
- a metal strip tapered on one side In the case of a single dielectric electrode, it is particularly suitable a metal strip tapered on one side.
- the metal strip is advantageous connected to the galvanic electrode of which the tapered End pointing away. This will make one along the entire strip and almost in the direction of the corresponding galvanic counter electrode uniform unilaterally dielectric discharge guaranteed.
- a tubular discharge vessel contains neon with a filling pressure in the range between approximately 1 kPa and 200 kPa, preferably between approximately 5 kPa and 50 kPa.
- the inner wall of the discharge vessel is provided with a VUV-stimulable phosphor, for example Y 3 Al 5 O 12 : Ce.
- the galvanic electrodes are realized by two mutually opposite electrodes, in particular cold cathodes, which are arranged within the discharge vessel.
- At least one metal electrode, in particular at least one metal strip, is attached as the dielectric electrode (s) on the outer wall of the discharge vessel.
- the fluorescent lamp 1 consists of a circular cylindrical discharge vessel 3 closed on both sides, the inner wall of which is coated with a fluorescent layer 4 made of Y 3 Al 5 O 12 : Ce, and two metallic electrodes 5, 6 ("galvanic electrodes") arranged inside the discharge vessel 3.
- the length of the discharge vessel 3 made of tempered glass is approximately 315 mm, the inner diameter approximately 3 mm and the thickness of the vessel wall approximately 1 mm.
- the two cup-shaped electrodes 5, 6 are oriented in the direction of the lamp longitudinal axis and face each other at a distance of about 305 mm.
- the electrodes 5, 6 are each connected to a power supply 7, 8, which are guided gas-tight from the ends of the discharge vessel 3 to the outside.
- the ballast 2 consists of a generator 9 and a high-voltage transformer 10.
- the secondary winding 11 of the high-voltage transformer 10 is connected to the electrodes 5, 6 via the current leads 7, 8.
- FIG. 2 shows an embodiment of a tubular according to the invention Fluorescent lamp in a schematic representation.
- the fluorescent lamp 12 in FIG. 2 additionally has the prior art in FIG. 1 two dielectric electrodes 13, 14.
- the dielectric electrodes 13, 14 each consist of a metal strip and are diametrical to each other and each parallel to the lamp's longitudinal axis on the outer wall of the discharge vessel 3 applied.
- the width of the metal strip is approx. 2 mm.
- the metal strips 13, 14 are provided with power leads 15, 16 connected, which in turn each with a power supply 7 or 8 of the galvanic electrodes are contacted.
- the metal strips 13, 14 extend each of the electrodes 5, 6 connected to them and via a Partial length of the discharge vessel 3.
- FIG. 3 is another embodiment of an inventive tubular fluorescent lamp shown schematically.
- Fluorescent lamp 12 in FIG. 2 is for fluorescent lamp 19 in FIG. 3 the dielectric electrodes 17, 18 not with the galvanic electrodes 5,6 connected, but with the secondary coil 20 of an additional ballast 21.
- the ballast 21 for the dielectric electrodes 17, 18 is with the ballast 2 for the galvanic electrodes 5.6 over the Synchronization line 22 synchronized.
- FIG 4 shows an embodiment of a tubular according to the invention Fluorescent lamp 23 with only one dielectric electrode 24.
- the dielectric Electrode 24 consists of a metal strip tapered on one side, which is glued to the outer wall of the discharge vessel 3.
- the trapeze-like at its corners rounded metal strip 24 is in common with a first galvanic electrode 6 with one pole of the secondary coil 11 of the high-voltage transformer 2 connected.
- the metal strip 24 is parallel oriented to the longitudinal axis of the lamp 23, the tapered end 24a away from the first galvanic electrode 6 and to the second galvanic Electrode 5, the counter electrode shows.
- the second galvanic electrode 5 is connected to the other pole of the secondary coil 25. In this way is achieved that a unilaterally dielectric discharge between Metal strip 24 and second galvanic electrode 5 burns in the longitudinal direction distributed almost evenly.
- FIG. 5 shows the color coordinates of the lamp from FIG. 4, measured during operation in accordance with the method according to the invention (measuring point A), ie with unimpeded and additionally dielectrically impeded discharge.
- measuring point B shows the color coordinates measured during operation according to the conventional method, ie only with unimpeded discharge.
- the current leads 15, 16 of the two dielectric electrodes 13, 14 of the fluorescent lamp 12 are cut.
- the measuring point C finally marks the case of the purely dielectric impeded discharge, the current leads 7, 8 of the two galvanic electrodes 5, 6 of the fluorescent lamp 12 being disconnected.
- the ballast 9 supplies unipolar, negative, half-sine-like voltage pulses with pulse widths of approximately 1 ⁇ s and pauses of 50 ⁇ s.
- the SAEJ578 and ECE coordinates are also shown, which define the requirements for the color locus of automotive flashing lights for the US and European markets. It can be clearly seen how, with the help of the invention, the color locus is specifically shifted in the direction of the ECE color area. With the same power input (40 W), approximately the same luminous flux (approx.
Landscapes
- Physics & Mathematics (AREA)
- Engineering & Computer Science (AREA)
- Plasma & Fusion (AREA)
- Vessels And Coating Films For Discharge Lamps (AREA)
- Discharge Lamps And Accessories Thereof (AREA)
- Circuit Arrangements For Discharge Lamps (AREA)
- Discharge Lamp (AREA)
Description
- Fig. 1
- eine rohrförmige Leuchtstofflampe mit galvanischen Elektroden gemäß dem Stand der Technik sowie ein Betriebsgerät zum Betreiben dieser Lampe,
- Fig. 2
- eine erfindungsgemäße rohrförmige Leuchtstofflampe mit galvanischen Elektroden und zwei damit verbundenen dielektrischen Elektroden,
- Fig. 3
- wie Figur 2, aber mit voneinander elektrisch getrennt versorgten galvanischen bzw. dielektrischen Elektroden,
- Fig. 4
- wie Figur 2, aber mit nur einem als dielektrische Elektrode wirkenden einseitig verjüngten Metallstreifen,
- Fig. 5
- einen Vergleich der Farbkoordinaten der Lampe aus Figur 4 bei unterschiedlichen Betriebsweisen.
| Vergleich einiger Betriebsdaten für die in Figur 5 eingezeichneten Meßpunkte. | |||
| Meßpunkt | A | B | C |
| Betriebsverfahren | unbehindert + dielektr. behindert (erfindungsgemäß) | unbehindert (konventionell) | dielektr. behindert |
| Pulshöhe | 5,2 kV | 8,5 kV | 6 kV |
| elektr. Leistung | 40 W | 40 W | 10 W |
| Lichtstrom | 391 lm | 390 lm | 70 lm |
Claims (9)
- Verfahren zum Betreiben von Entladungslampen (12; 19; 23) mit einem Entladungsgefäß (3), wobei mittels einer Folge von Spannungspulsen innerhalb des Entladungsgefäßes (3) eine dielektrisch unbehinderte gepulste Entladung erzeugt wird, dadurch gekennzeichnet, daß innerhalb des Entladungsgefäßes (3) zusätzlich eine dielektrisch behinderte Entladung erzeugt und dadurch die spektrale Verteilung der von der Entladungslampe (12; 19; 23) emittierten Strahlung gezielt beeinflußt sowie die für die dielektrisch unbehinderte gepulste Entladung erforderliche Höhe der Spannungspulse verringert wird derart, daß die erforderliche Höhe mit zusätzlicher, dielektrisch behinderter Entladung geringer ist als ohne zusätzliche, dielektrisch behinderte Entladung.
- Verfahren nach Anspruch 1, dadurch gekennzeichnet, daß die dielektrisch behinderte Entladung durch eine Folge von Spannungspulsen erzeugt wird, wobei die einzelnen Spannungspulse jeweils durch Pausenzeiten voneinander getrennt sind.
- Verfahren nach Anspruch 2, dadurch gekennzeichnet, daß die Pulsbreite im Bereich zwischen 0,1 µs und 50 µs sowie das Puls-Pausen-Verhältnis im Bereich zwischen 0,001 und 0,1 liegen
- Verfahren nach Anspruch 2, dadurch gekennzeichnet, daß die Folge der Spannungspulse für die Erzeugung der unbehinderten Entladung mit der Folge der Spannungspulse für die Erzeugung der dielektrisch behinderten Entladung synchronisiert ist.
- Verfahren nach Anspruch 4, dadurch gekennzeichnet, daß die Folge von Spannungspulsen für die Erzeugung der dielektrisch behinderten Entladung der Folge der Spannungspulsen für die Erzeugung der unbehinderten Entladung zeitlich vorgeschaltet ist.
- Verfahren nach Anspruch 2, dadurch gekennzeichnet, daß dieselbe Folge von Spannungspulsen sowohl zur Erzeugung der dielektrisch behinderten als auch der dielektrisch unbehinderten Entladung verwendet wird.
- Verfahren nach Anspruch 1, dadurch gekennzeichnet, daß das Verhältnis der in die unbehinderte bzw. behinderte Entladung eingekoppelten elektrischen Leistungen im Bereich zwischen 0,01 und 100 liegt.
- Verfahren nach Anspruch 7, dadurch gekennzeichnet, daß das Verhältnis bevorzugt im Bereich zwischen 0,5 und 10 liegt.
- Verfahren nach Anspruch 1, dadurch gekennzeichnet, daß das Entladungsgefäß (3) mit einer Leuchtstoffschicht (4) versehen ist, um damit die Beeinflussung der spektralen Verteilung der von der Entladungslampe (12; 19; 24) emittierten Strahlung bzw. des Farbortes der Entladungslampe (12; 19; 24) zu unterstützen.
Applications Claiming Priority (3)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| DE19517515 | 1995-05-12 | ||
| DE19517515A DE19517515A1 (de) | 1995-05-12 | 1995-05-12 | Entladungslampe und Verfahren zum Betreiben derartiger Entladungslampen |
| PCT/DE1996/000779 WO1996036066A1 (de) | 1995-05-12 | 1996-05-03 | Entladungslampe und verfahren zum betreiben derartiger entladungslampen |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| EP0824761A1 EP0824761A1 (de) | 1998-02-25 |
| EP0824761B1 true EP0824761B1 (de) | 2002-04-03 |
Family
ID=7761791
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| EP96914842A Expired - Lifetime EP0824761B1 (de) | 1995-05-12 | 1996-05-03 | Verfahren zum betreiben von entladungslampen |
Country Status (9)
| Country | Link |
|---|---|
| US (1) | US5965988A (de) |
| EP (1) | EP0824761B1 (de) |
| JP (1) | JP3943131B2 (de) |
| KR (1) | KR100399243B1 (de) |
| CN (1) | CN1097292C (de) |
| CA (1) | CA2220571C (de) |
| DE (2) | DE19517515A1 (de) |
| HU (1) | HU221362B1 (de) |
| WO (1) | WO1996036066A1 (de) |
Families Citing this family (30)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE19651552A1 (de) * | 1996-12-11 | 1998-06-18 | Patent Treuhand Ges Fuer Elektrische Gluehlampen Mbh | Kaltkathode für Entladungslampen, Entladungslampe mit dieser Kaltkathode und Betriebsweise für diese Entladungslampe |
| DE19734885C1 (de) * | 1997-08-12 | 1999-03-11 | Patent Treuhand Ges Fuer Elektrische Gluehlampen Mbh | Verfahren zum Erzeugen von Impulsspannungsfolgen für den Betrieb von Entladungslampen und zugehörige Schaltungsanordnung |
| DE19734883C1 (de) * | 1997-08-12 | 1999-03-18 | Patent Treuhand Ges Fuer Elektrische Gluehlampen Mbh | Verfahren zum Erzeugen von Impulsspannungsfolgen für den Betrieb von Entladungslampen und zugehörige Schaltungsanordnung |
| US6130511A (en) * | 1998-09-28 | 2000-10-10 | Osram Sylvania Inc. | Neon discharge lamp for generating amber light |
| DE19845228A1 (de) * | 1998-10-01 | 2000-04-27 | Patent Treuhand Ges Fuer Elektrische Gluehlampen Mbh | Dimmbare Entladungslampe für dielektrisch behinderte Entladungen |
| JP2002540583A (ja) * | 1999-03-25 | 2002-11-26 | コーニンクレッカ フィリップス エレクトロニクス エヌ ヴィ | 照明装置 |
| US6191539B1 (en) * | 1999-03-26 | 2001-02-20 | Korry Electronics Co | Fluorescent lamp with integral conductive traces for extending low-end luminance and heating the lamp tube |
| DE19916877A1 (de) * | 1999-04-14 | 2000-10-19 | Patent Treuhand Ges Fuer Elektrische Gluehlampen Mbh | Entladungslampe mit Sockel |
| JP2001028258A (ja) * | 1999-05-12 | 2001-01-30 | Nippon Sheet Glass Co Ltd | 平面蛍光ランプ |
| DE19928438A1 (de) | 1999-06-23 | 2000-12-28 | Patent Treuhand Ges Fuer Elektrische Gluehlampen Mbh | Verfahren zum Betrieb einer Entladungslampe |
| DE19933893A1 (de) * | 1999-07-22 | 2001-01-25 | Patent Treuhand Ges Fuer Elektrische Gluehlampen Mbh | Verfahren zum Beschichten von Lampenkolben |
| DE10005975A1 (de) * | 2000-02-09 | 2001-08-16 | Patent Treuhand Ges Fuer Elektrische Gluehlampen Mbh | Betriebsverfahren für eine Entladungslampe mit mindestens einer dielektrisch behinderten Elektrode |
| WO2001073817A1 (de) * | 2000-03-28 | 2001-10-04 | Robert Bosch Gmbh | Gasentladungslampe mit zündhilfselektroden, insbesondere für kraftfahrzeugscheinwerfer |
| US6541924B1 (en) * | 2000-04-14 | 2003-04-01 | Macquarie Research Ltd. | Methods and systems for providing emission of incoherent radiation and uses therefor |
| DE10048409A1 (de) * | 2000-09-29 | 2002-04-11 | Patent Treuhand Ges Fuer Elektrische Gluehlampen Mbh | Entladungslampe mit kapazitiver Feldmodulation |
| JP2004200127A (ja) * | 2002-12-20 | 2004-07-15 | Harison Toshiba Lighting Corp | 照明装置 |
| KR100711943B1 (ko) * | 2003-04-10 | 2007-05-02 | 오카야 덴기 산교 가부시키가이샤 | 방전관 |
| KR100951912B1 (ko) * | 2003-08-07 | 2010-04-09 | 삼성전자주식회사 | 백라이트 어셈블리와 이를 갖는 액정 표시 장치 |
| JP2005347569A (ja) * | 2004-06-03 | 2005-12-15 | Ushio Inc | フラッシュランプ照射装置 |
| KR101150196B1 (ko) * | 2005-03-14 | 2012-06-12 | 엘지디스플레이 주식회사 | 액정표시장치용 형광램프 |
| JP4904905B2 (ja) * | 2005-06-08 | 2012-03-28 | ソニー株式会社 | 冷陰極蛍光灯、冷陰極蛍光灯駆動装置、冷陰極蛍光灯装置、液晶表示装置、冷陰極蛍光灯の制御方法、液晶表示装置の制御方法 |
| TW200721907A (en) * | 2005-11-18 | 2007-06-01 | Delta Optoelectronics Inc | An improved startup method for the mercury-free flat-fluorescent lamp |
| KR100684259B1 (ko) * | 2006-03-28 | 2007-02-16 | 나은수 | 피건조물의 내부 성층화가 방지되는 연속식 스크루건조기 |
| US20090058308A1 (en) * | 2006-05-09 | 2009-03-05 | Matsushita Electric Industrial Co., Ltd. | Apparatus and method for lighting dielectric barrier discharge lamp |
| US7759854B2 (en) * | 2007-05-30 | 2010-07-20 | Global Oled Technology Llc | Lamp with adjustable color |
| DE102007057581A1 (de) * | 2007-11-28 | 2009-06-04 | Fachhochschule Aachen | Hochfrequenzlampe und Verfahren zu deren Betrieb |
| DE102008018589A1 (de) | 2008-04-08 | 2009-11-05 | Fraunhofer-Gesellschaft zur Förderung der angewandten Forschung e.V. | Verfahren und Vorrichtung zum Zünden eines Lichtbogens |
| TWI362053B (en) * | 2008-04-30 | 2012-04-11 | Applied Green Light Taiwan Inc | Flat discharge lamp and the production method thereof |
| US8456082B2 (en) | 2008-12-01 | 2013-06-04 | Ifire Ip Corporation | Surface-emission light source with uniform illumination |
| DE102013110985A1 (de) * | 2013-10-02 | 2015-04-16 | Dritte Patentportfolio Beteiligungsgesellschaft Mbh & Co.Kg | Leuchtstofflampe |
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| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US4260932A (en) * | 1978-10-12 | 1981-04-07 | Vance Johnson | Method and circuit for facilitating the starting and steady state flickerless operation of a discharge lamp |
| US4427920A (en) * | 1981-10-01 | 1984-01-24 | Gte Laboratories Incorporated | Electromagnetic discharge apparatus |
| JPH079795B2 (ja) * | 1986-12-01 | 1995-02-01 | 東芝ライテック株式会社 | 放電ランプ |
| GB8821673D0 (en) * | 1988-09-02 | 1988-10-19 | Emi Plc Thorn | Discharge tube arrangement |
| DE8904539U1 (de) * | 1989-04-11 | 1990-04-05 | Hoppe, Lothar, 4056 Schwalmtal | Angelhaken (Blinker) |
| DE8904853U1 (de) * | 1989-04-18 | 1989-06-22 | Imris, Pavel, Dr., 3162 Uetze | Leuchtstofflampe |
| JPH04280062A (ja) * | 1991-03-08 | 1992-10-06 | Toshiba Lighting & Technol Corp | 低圧放電灯および低圧放電灯装置 |
| JPH0529085A (ja) * | 1991-07-22 | 1993-02-05 | Toshiba Lighting & Technol Corp | 希ガス放電灯装置 |
| EP0528489B1 (de) * | 1991-08-14 | 1995-12-20 | Matsushita Electric Works, Ltd. | Elektrodenlose Entladungslampe |
| US5319282A (en) * | 1991-12-30 | 1994-06-07 | Winsor Mark D | Planar fluorescent and electroluminescent lamp having one or more chambers |
| DE4311197A1 (de) * | 1993-04-05 | 1994-10-06 | Patent Treuhand Ges Fuer Elektrische Gluehlampen Mbh | Verfahren zum Betreiben einer inkohärent strahlenden Lichtquelle |
| JPH06310099A (ja) * | 1993-04-23 | 1994-11-04 | Matsushita Electric Works Ltd | 可変色放電灯装置 |
| US5523655A (en) * | 1994-08-31 | 1996-06-04 | Osram Sylvania Inc. | Neon fluorescent lamp and method of operating |
-
1995
- 1995-05-12 DE DE19517515A patent/DE19517515A1/de not_active Withdrawn
-
1996
- 1996-05-03 EP EP96914842A patent/EP0824761B1/de not_active Expired - Lifetime
- 1996-05-03 US US08/945,851 patent/US5965988A/en not_active Expired - Fee Related
- 1996-05-03 WO PCT/DE1996/000779 patent/WO1996036066A1/de not_active Ceased
- 1996-05-03 CA CA002220571A patent/CA2220571C/en not_active Expired - Fee Related
- 1996-05-03 HU HU9800703A patent/HU221362B1/hu not_active IP Right Cessation
- 1996-05-03 KR KR1019970708070A patent/KR100399243B1/ko not_active Expired - Fee Related
- 1996-05-03 DE DE59609019T patent/DE59609019D1/de not_active Expired - Fee Related
- 1996-05-03 CN CN96193891A patent/CN1097292C/zh not_active Expired - Fee Related
- 1996-05-03 JP JP53365896A patent/JP3943131B2/ja not_active Expired - Fee Related
Also Published As
| Publication number | Publication date |
|---|---|
| CA2220571A1 (en) | 1996-11-14 |
| HU221362B1 (en) | 2002-09-28 |
| KR19990014728A (ko) | 1999-02-25 |
| CN1097292C (zh) | 2002-12-25 |
| CN1187264A (zh) | 1998-07-08 |
| DE19517515A1 (de) | 1996-11-14 |
| CA2220571C (en) | 2005-08-02 |
| DE59609019D1 (de) | 2002-05-08 |
| EP0824761A1 (de) | 1998-02-25 |
| KR100399243B1 (ko) | 2003-11-14 |
| WO1996036066A1 (de) | 1996-11-14 |
| JP3943131B2 (ja) | 2007-07-11 |
| US5965988A (en) | 1999-10-12 |
| HUP9800703A3 (en) | 2000-09-28 |
| JPH11505061A (ja) | 1999-05-11 |
| HUP9800703A2 (hu) | 1998-07-28 |
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