EP1340243B1 - Lampe a decharge gazeuse basse pression compacte sans electrode a duree de vie allongee - Google Patents

Lampe a decharge gazeuse basse pression compacte sans electrode a duree de vie allongee Download PDF

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Publication number
EP1340243B1
EP1340243B1 EP01994592A EP01994592A EP1340243B1 EP 1340243 B1 EP1340243 B1 EP 1340243B1 EP 01994592 A EP01994592 A EP 01994592A EP 01994592 A EP01994592 A EP 01994592A EP 1340243 B1 EP1340243 B1 EP 1340243B1
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EP
European Patent Office
Prior art keywords
gas discharge
pressure gas
lamp
discharge lamp
low
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Expired - Lifetime
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EP01994592A
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German (de)
English (en)
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EP1340243A1 (fr
Inventor
Walter Tews
Gundula Roth
Jens Klimke
Conrad Schimke
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ROTH, GUNDULA
TEWS, WALTER
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Individual
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    • 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
    • H01J65/048—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 an excitation coil
    • 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
    • H01J61/32—Special longitudinal shape, e.g. for advertising purposes
    • H01J61/327—"Compact"-lamps, i.e. lamps having a folded discharge path

Definitions

  • the invention relates to a compact electrodeless low-pressure gas discharge lamp with a long service life, high luminous efficacy and high luminance.
  • the field of application of the invention are light sources for general and municipal lighting in indoor and outdoor areas, in medicine and cosmetics. It is known that low-pressure gas discharge lamps generate visible light for illumination purposes during the discharge of the excited gas with the assistance of suitable phosphors. Particularly common are compact mercury vapor low-pressure discharge lamps, consisting of a vacuum-tight and filled with mercury and inert gas flask, which has on its inside a phosphor layer, the short-wave mercury resonance radiation with energies of about 6.71 eV and 4.88 eV in visible Light converts.
  • the emitter material eroded during this time partially deposits on the inner wall of the low pressure gas discharge lamp and causes the phosphor layer forming the glass envelope inner wall of the Lamp covered, near the electrodes turns gray. Especially when switching on the mercury vapor low-pressure discharge lamps, the electrodes are damaged.
  • Another disadvantage of these known mercury vapor low-pressure discharge lamps is that the emissivity of the phosphor with the duration of the complex interaction of ablated electrode material and released gases with the effect of short-wave UV radiation and the recombination of mercury ions with electrons on the phosphor surface the effect is particularly strong, which manifests itself in a significant decrease in the luminous efficacy or the luminous flux with the lamp burning time and the clear onset of graying of the entire glass bulb of the discharge vessel of the low-pressure gas discharge lamp.
  • Another effect that limits the useful life of low pressure mercury vapor discharge lamps is a reaction of the various ingredients in the glass of the discharge vessel with the phosphor coating. These reactions cause the further decrease of the luminous flux during the lamp life, especially by a graying of the glass of the discharge vessel.
  • low-pressure gas discharge lamps without electrodes have become known in which by means of a ferrite core, which in US 3,987,335 ring-shaped and in US 4,010,400 rod is described, electrical energy in the RF range inductively coupled into the discharge vessel.
  • a ferrite core which in US 3,987,335 ring-shaped and in US 4,010,400 rod is described, electrical energy in the RF range inductively coupled into the discharge vessel.
  • the Dutch company NV Philips' Gloeilampenfabrieken manufactures the mainly spherical mercury vapor low-pressure discharge lamp QL ® with a rod-shaped ferrite core.
  • the frequency of using this Rod-shaped ferrite core coupled into the discharge vessel energy is in a relatively high range, so that measures to avoid electromagnetic losses and heat dissipation are required. Due to its complexity, this lamp system is less suitable for general lighting.
  • the low-pressure gas discharge lamp after US 4,923,425 has comparable coatings with a coating mass greater than 0.7 mg / cm 2 to the object.
  • This lamp consists of a glass lamp vessel and a lamp base made of synthetic resin.
  • the inner surface of the wall of the lamp vessel is provided with a luminescent layer which serves to convert the UV radiation produced in the lamp vessel into visible light.
  • the lamp vessel has an arcuate annular channel which encloses most of the semicircular ferrite core.
  • This ferrite core forms part of the closed ring core, which is completed by a separate ferrite yoke.
  • the ferrite yoke is housed in the lamp base, which is connected by means of a snap-in version interchangeable with the lamp vessel.
  • the induction coil of 11 turns of copper foil strip is wound around the ferrite yoke and passed with its two ends to an HF generator circuit with a 5 MHz oscillator, which receives its energy from the mains voltage supply via connecting lines within the envelope in the lamp base.
  • the RF generator circuit preferably generates a lamp frequency of over 1 MHz.
  • the spherical glass lamp vessel contains about 20 mg of mercury and a thin gas mixture of argon and krypton at a pressure of 1.5 torr.
  • the luminescent layer which consists of a mixture of the three phosphors blue emitting by barium magnesium aluminate: europium 2+ (BAM), green emitting by cerium magnesium aluminate: terbium (CAT) and red-emitting Yttrium: Europium 3+ (YOX) is applied on the inside of the lamp glass wall.
  • the outer wall surface of the arcuate annular channel is provided with a heat and light refracting layer of titanium dioxide.
  • This layer is electrically non-conductive to avoid disturbances in the gas discharge.
  • This layer is also attached to the part of the lamp vessel wall which lies opposite the lamp cap.
  • the magnetic material of the core consists of a ferrite having a relative permeability of over 200 and a low degree of loss of RF energy at a frequency above 1 MHz.
  • another 20 turns of a copper foil strip around the arcuate core portion, which is embedded within the tubular slot channel serve.
  • a luminous flux of 1000 Im is achieved.
  • the efficiency of the RF supply unit is approximately 90%, so that the luminous efficacy of the lamp and mains supply system is 55 lm / W.
  • this electrodeless low-pressure gas discharge lamp with closed magnetic core loop made of ferrite is the generation of the high-frequency energy field in the gas discharge region at more than 1 MHz. At this working frequency radio interference in the devices of conventional consumer electronics can not be excluded.
  • the lamp with a luminous efficacy of the system of lamp and mains supply of 55 Im / W is suitable for use in street lighting only conditionally.
  • the object of the invention is to increase the quality parameters such as lifetime, luminous efficacy and luminance in the compact mercury vapor low-pressure discharge lamp with suitable technical means.
  • the object is achieved with a lamp which contains the discontinued in claim 1 features.
  • the inventive compact electrodeless low-pressure gas discharge lamp with increased life in particular mercury vapor low-pressure discharge lamp in a compact design, has in known manner a spherical or an annular or a pear-shaped or an ellipsoidal glass envelope as a discharge vessel, on the inner glass surface at least one phosphor-containing layer is applied.
  • the side of the glass bulb facing the gas discharge and / or the phosphor-containing layer exposed to the gas discharge in the discharge vessel are coated with a chemically largely inert protective layer of oxide.
  • the protective layer consists of at least one of the oxides Y 2 O 3 , Al 2 O 3 , SiO 2 , La 2 O 3 , Sm 2 O 3 , Gd 2 O 3 , MgO, Dy 2 O 3 , Ho 2 O 3 , He 2 O 3 , Yb 2 O 3 , Lu 2 O 3 , CaO, ZrO 2 , SrO, BaO and BeO.
  • the protective layer is designed as a continuous coating on the inner glass surface of the discharge vessel and / or the surface of the phosphor on the inside of the discharge vessel. This layer is suitable for protecting the phosphors introduced in the discharge vessel effectively against reactions with the surrounding medium.
  • annular, closed ferrite core which lies partially within the discharge vessel and is provided with a primary winding which is connected to an RF source.
  • a vacuum-tight passage is introduced into the glass body of the discharge vessel.
  • the primary winding On the other part of the annular ferrite core outside the discharge vessel is the primary winding to which an RF source is connected.
  • the part of the annular ferrite core with the primary winding is arranged in the lamp base.
  • the necessary for operating the low-pressure gas discharge lamp RF energy provides an electronic push-pull circuit, which is controlled by an oscillator with an operating frequency in the range of 100 to 500 kHz, preferably 150 to 400 kHz.
  • the primary winding is connected to the RF source via a resonant LC coupling circuit.
  • the RF source in conjunction with the coupling circuit, ensures reliable operation and ignition of the gas discharge.
  • the inventive application of a push-pull circuit using fast MOSFET transistors allows high efficiency of this ballast in the specified frequency range, so that a total system luminous efficiency lamp and
  • the RF source used to maintain the gas discharge can be integrated in the base of the low-pressure gas discharge lamp.
  • Praseodymium, and / or ions of manganese, lead, antimony, tin and bismuth are activated and the alkaline earth metal ions partially substituted by ions of the elements of the 2nd subgroup or the rare earth elements Ln can be partially or completely replaced by ions of the 3rd subgroup.
  • the coating according to the invention with the protective layer effects the isolation of the phosphor-containing layer from the lamp glass, in particular for preventing the diffusion of alkali ions into the phosphor and the protection of the phosphor from radiation damage and surface reactions with mercury or mercury compounds.
  • This coating is applied by means of a suspension in a manner similar to that used in the prior art in the phosphor coating, and is effective in effectively suppressing reactions of the phosphor with the glass body. Furthermore, such a coating contributes to a Overall, higher light output, because by remission of UV radiation at the non-fluorescent layer back into the phosphor layer, a reduction of the wall losses is achieved.
  • the compact electrodeless low-pressure gas discharge lamp is applicable in the interior and exterior of general and municipal lighting, in medicine and in cosmetics.
  • the embodiments of the low-pressure gas discharge lamp according to the invention shown schematically in FIGS. 1 to 5 show compact electrodeless mercury vapor low-pressure discharge lamps.
  • the low-pressure gas discharge lamp according to FIG. 1 and FIG. 2 has the base 1 and the socket 2 and is operated with an external RF source.
  • the discharge vessel 3 which is predominantly spherical in this embodiment, is connected to the base 1.
  • the diameter of the discharge vessel 3 is about 7 to 20 cm.
  • the discharge vessel has the coldest point 7 required for the adjustment of the mercury vapor pressure.
  • the connection of the closed annular ferrite core 4 with the evacuable discharge vessel 3 takes place via a vacuum-tight passage through the discharge vessel 3 whose shape corresponds to the outer shape of the ferrite core 4.
  • the ferrite core 4 has an outer diameter of 5 to 7 cm with a cross section of at least 2 cm 2 and an inner diameter of 2 to 4 cm.
  • the ferrite core 4 which is divided into two, is located approximately halfway inside the discharge vessel 3 and inside the base 1 and is held together by a suitable device.
  • the ferrite core 4 is made of a material having a saturation flux density of at least 500 mT with an initial permeability of at least 2000 and low losses in the frequency range of 100 to 500 kHz.
  • the self-heating of the ferrite core 4 is small due to the low core losses.
  • the ferrite core 4 since the ferrite core 4 partially lies within the discharge vessel 3, it is heated by the discharge. Therefore, preferably a MnZn soft ferrite with decreasing losses at higher temperatures and a Curie temperature of at least 200 ° C is used.
  • the primary winding 5 is applied on the outside of the discharge vessel 3 in the base 1 located part of the ferrite core 4, the primary winding 5 is applied. It consists of 10 to 20 turns of a strand with heat and radiation-resistant insulation.
  • the RF power necessary to operate the low pressure gas discharge lamp provides an electronic push-pull circuit controlled by a suitable oscillator.
  • the operating frequency is 100 to 500 kHz, preferably 150 to 400 kHz.
  • the primary winding 5 is connected to the RF source via a resonant LC coupling circuit.
  • the RF source in conjunction with the coupling circuit, ensures reliable operation and ignition of the gas discharge.
  • the inventive application of a push-pull circuit using fast MOSFET transistors allows high efficiency of this ballast in the specified frequency range.
  • the special shape of the discharge vessel 3 with substantially high cross-sections causes a very low axial electric field strength at high discharge currents of 3 to 10 A during operation of the low-pressure gas discharge lamp.
  • the burning voltage of the gas discharge and thus the secondary voltage of the transformer, which is formed by the ferrite core 4, the primary winding 5 and gas discharge is very low. Therefore, the core losses compared with the example in US 3,500,118 and US 4,422,017 described gas discharge lamp has been significantly reduced.
  • the glass bulb of the discharge vessel 3 is provided with a gas mixture of mercury and a noble gas, for example argon, krypton or a Mixture of noble gases, filled with a filling pressure of 1 ⁇ p ⁇ 4 mBar.
  • a gas mixture of mercury and a noble gas for example argon, krypton or a Mixture of noble gases, filled with a filling pressure of 1 ⁇ p ⁇ 4 mBar.
  • the gas discharge generates predominantly UV radiation with energies of 6.71 eV and 4.88 eV.
  • the ratio of the generated UV radiation energies depends on the exact dimensions of the discharge vessel 3, the discharge current intensity and the mercury vapor pressure.
  • FIG. 3 and Fig. 4 another embodiment of the mercury vapor low-pressure discharge lamp according to the invention with the base 1 and the socket 2 is shown schematically.
  • the gas discharge lamp is operated with an external RF source.
  • the discharge vessel 3 which is predominantly oval in this embodiment, is connected to the base 1.
  • the largest diameter of the discharge vessel 3 is 7 to 20 cm.
  • the discharge vessel 3 has the coldest point 7 required for the adjustment of the mercury vapor pressure.
  • the almost circular cross section of the discharge vessel 3 has a diameter of 2 to 5 cm.
  • the embodiment of the compact electrodeless mercury vapor low-pressure discharge lamp according to the invention according to FIG. 3 and FIG. 4 with the layer 6, for example of the phosphors BSCT and YOX: Eu on the inside of the glass bulb of the discharge vessel 3 generates at a system power of 42.1 W. warm white light color and a luminous flux of approx.
  • the compact electrodeless low-pressure gas discharge lamp according to FIGS. 1 to 4 has the two different, special protective layers 7 and 8, of which the protective layer 8 covers the phosphor 6 on the side facing the discharge and the protective layer 7 between the layer of the phosphor 6 and the inside of the glass bulb of the discharge vessel 3 is applied.
  • the protective layer 8 which covers the phosphor 6, turns off the gas phase by CVD (chemical vapor deposition) using a suitable organometallic precursor compound is deposited, which is thermally decomposable completely below the softening temperature of the glass of the discharge vessel 3 in the material of the protective layer 8.
  • CVD chemical vapor deposition
  • Suitable precursor materials are, for example, alkyl, alkoxy or acetylacetonate compound of the corresponding metal.
  • the starting materials for aluminum oxide coatings are compounds R x (OR ') 3-x Al. (with x: 0-3 and R and R 'as lower alkyl groups such as -CH 3 , -C 2 H 5 , -C 3 H 7 and -C 4 H 9 ).
  • compounds of the type R x (OR ') 4-x Si (with x: 0-4 and R or R' as lower alkyl groups such as -CH 3 , -C 2 H 5 , -C 3 H 7 , -C 4 H 9 and / or -C 5 H 11 ).
  • the material for the protective layers 7 and 8 is transparent to the wavelength range of the mercury excitation and chemically largely inert and consists of sufficiently small particles that ensure a continuous, dense and adhesive coating. Owing to their chemical resistance, oxidic materials are very well suited.
  • Al 2 O 3 , SiO 2 and HfO 2 exhibit complete permeability in the UV range.
  • ZrO 2 weakens about 5% of the excitation wavelength of 254 nm. Below 200 nm, the transmission decreases to 20 percent.
  • V 2 O 5 , Nb 2 O 5 and Y 2 O 3 weaken about 15% of the excitation wavelength 254 nm.
  • Y 2 O 3 weakens below 200 nm up to 70% of the radiation.
  • SiO 2 because of its negative charge behavior, interacts with the mercury, rendering it unsuitable as a protective layer material for direct contact with the mercury discharge.
  • the Al 2 O 3 is because of its good availability and due to its property compared to the HfO 2 the most suitable for the production of protective layers material, especially since aluminum oxide is often used as a suspension additive to increase the reflectivity.
  • protective layer 7 and protective layer 8 increases the long-term stability in the compact electrodeless low-pressure gas discharge lamp.
  • the quality-reducing influences of the interaction processes between the glass of the discharge vessel 3 and the phosphor layer 6 in the case of the low-pressure gas discharge lamp are severely restricted.
  • the compact electrodeless low-pressure gas discharge lamps according to the invention are produced with a predominantly spherical discharge vessel 3.
  • the discharge vessel 3 of the low-pressure gas discharge lamps is first dried with a suspension of 4 ml of Aerosil K330 dispersion (Degussa AG), 40 ml of 5% polyethylene oxide solution, 40 ml of deionized water, 2 ml of Arkopal and 0.3 ml of Dispex, dried in a warm air stream and burned out at 550 ° C.
  • the continuous protective layer 7 of about 0.15 mg / cm 2 paving material is produced.
  • the phosphor layer 6 by means of a suspension of 100 g of the relevant phosphor mixture in 70 ml of deionized water, 0.5 ml of Dispex, 80 ml of 5% polyethylene oxide solution, 2.5 ml of Arkopal and 35 ml of 10% Alon-C solution by Fencing the previously coated discharge vessel 3 of the gas discharge lamp made. After drying, the burning out of the discharge vessel 3 in the air flow at 550 ° C. At a viscosity of the suspension of 1.5 dPas, a coating mass of the burnt-out discharge vessel 3 of approximately 4.5 mg / cm 2 is achieved.
  • the compact electrodeless low-pressure gas discharge lamps according to the invention No. 1 to No. 11 are produced according to Tab. 2 with ellipsoidal discharge vessel 3.
  • the discharge vessel 3 of the gas discharge lamps is first deionized with a suspension of 4 ml of Aerosil K330 dispersion, 40 ml of 5% polyethylene oxide solution, 40 ml Water, 2 ml Arkopal and 0.3 ml Dispex, dried, dried in a warm air stream and burnt out at 550 ° C.
  • the continuous protective layer 7 of about 0.15 mg / cm 2 paving material is produced.
  • the phosphor layer 6 by means of a suspension of 100 g of the relevant phosphor mixture in 70 ml of deionized water, 0.5 ml of Dispex, 80 ml of 5% polyethylene oxide solution, 2.5 ml of Arkopal and 35 ml of 10% Alon-C solution by Fencing the previously coated glass bulb of the discharge vessels 3 produced. After drying, the burning out of the discharge vessel 3 in the air flow at 550 ° C. At a viscosity of the suspension of 1.5 dPas, a coating mass of the burnt-out discharge vessel 3 of approximately 4.5 mg / cm 2 is achieved.
  • the second protective layer 8 is produced by introducing a carrier gas mixture of nitrogen and oxygen in aluminum isopropoxide at about 140 ° C. and subsequent thermal decomposition of the aluminum isopropoxide vapor during introduction of the laden carrier gas into a glass flask of the discharge vessel 3 heated to 450 ° C.
  • the compact electrodeless low-pressure gas discharge lamps with the No. 1 to No. 9 in Tab. 2 operate with a system power of approximately 42 W and the low-pressure gas discharge lamps with the No. 10 and No. 11 with a system power of approximately 85 W. , Tab.

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  • Physics & Mathematics (AREA)
  • Electromagnetism (AREA)
  • Engineering & Computer Science (AREA)
  • Plasma & Fusion (AREA)
  • Discharge Lamps And Accessories Thereof (AREA)
  • Vessels And Coating Films For Discharge Lamps (AREA)
  • Luminescent Compositions (AREA)
  • Gas-Filled Discharge Tubes (AREA)

Claims (2)

  1. Lampe à décharge gazeuse basse pression compacte sans électrode à durée de vie allongée et à flux lumineux entre 55 à 80 lm et comportant un noyau en ferrite fermé annulaire pour le maintien de la décharge électrique, lequel noyau est introduit partiellement à l'intérieur du réservoir de décharge à partir du culot de la douille de la lampe à décharge gazeuse basse pression à travers un passage étanche au vide dans l'ampoule en verre du réservoir de décharge et où se trouve l'enroulement primaire du noyau en ferrite sur l'autre partie du noyau en ferrite dans le culot de la douille et où laquelle lampe à décharge gazeuse basse pression est composée d'un réservoir de décharge avec un remplissage de mercure et au moins un gaz rare avec une pression de remplissage de 1 < p < 4 mbar et d'une couche de substance luminescente sur le côté intérieur de la paroi en verre du réservoir de décharge et sur laquelle paroi est disposée sur le côté, orienté vers la décharge gazeuse, de la surface de l'ampoule en verre du réservoir de décharge et / ou sur la surface, exposée à la décharge gazeuse, de la couche de substance luminescente le revêtement continue avec une couche de protection chimiquement inerte contre les réactions avec le milieu environnant composé d'un oxyde, caractérisé en ce que l'énergie RF est fournie par une source RF composée d'un oscillateur dans la zone de fréquence entre 100 et 500 kHz et commandée au moyen d'un circuit push - pull électronique pour faire fonctionner la lampe à décharge gazeuse basse pression et en ce que la source RF est liée via un circuit de couplage LC résonant avec l'enroulement primaire de la boucle fermée du noyau en ferrite et en ce que la couche de substance luminescente, qui est recouverte d'au moins un des oxydes de protection Y2O3, Al2O3, SiO2, La2O3, Sm2O3, Gd2O3, MgO, Dy2O3, Ho2O3, Er2O3, Yb2O3, Lu2O3, CaO, ZrO2, SrO, BaO et BeO, comporte au moins deux substances luminescentes qui sont fabriquées des liaisons chimiques suivantes :
    - silicate de gadolinium - magnésium - pentaborate ,
    - aluminate alcalino - terreux ,
    - aluminate de cérium - magnésium,
    - oxyde de Ln ,
    - phosphate de Ln ,
    - phosphate alcalino - terreux ,
    - orthosilicate alcalino - terreux,
    ainsi que :
    - - halophosphate alcalino - terreux,
    - ortosilicate de zinc,
    - fluorogermanate de magnésium,
    - disilicate de baryum,
    - tetraborate alcalino - terreux,
    où les substance luminescentes sont activées avec des ions des terres rares, notamment avec des ions de europium, terbium, gadolinium, cérium, dysprosium, samarium et praséodymium, et / où des ions de manganèse, plomb, antimoine, étain et bismuth et où les ions alcalino - terreux peuvent être substitués partiellement par des ions des éléments du deuxième sous - groupe respectivement les éléments des terres rares Ln peuvent être replacés partiellement ou entièrement par des ions du troisième sous - groupe.
  2. Utilisation de la lampe à décharge gazeuse basse pression compacte avec une durée de vie prolongée selon la revendication1 dans la zone intérieure et extérieure de l'éclairage générale et communale, dans la médecine ou dans la cosmétique.
EP01994592A 2000-11-27 2001-11-26 Lampe a decharge gazeuse basse pression compacte sans electrode a duree de vie allongee Expired - Lifetime EP1340243B1 (fr)

Applications Claiming Priority (3)

Application Number Priority Date Filing Date Title
DE10058852 2000-11-27
DE10058852A DE10058852A1 (de) 2000-11-27 2000-11-27 Kompakte elektrodenlose Niederdruck-Gasentladungslampe mit erhöhter Lebensdauer
PCT/DE2001/004482 WO2002043107A1 (fr) 2000-11-27 2001-11-26 Lampe a decharge gazeuse basse pression compacte sans electrode a duree de vie allongee

Publications (2)

Publication Number Publication Date
EP1340243A1 EP1340243A1 (fr) 2003-09-03
EP1340243B1 true EP1340243B1 (fr) 2007-07-18

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EP01994592A Expired - Lifetime EP1340243B1 (fr) 2000-11-27 2001-11-26 Lampe a decharge gazeuse basse pression compacte sans electrode a duree de vie allongee

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EP (1) EP1340243B1 (fr)
AT (1) ATE367648T1 (fr)
AU (1) AU2002224741A1 (fr)
DE (2) DE10058852A1 (fr)
RU (1) RU2003119071A (fr)
WO (1) WO2002043107A1 (fr)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US7727042B2 (en) 2005-12-26 2010-06-01 Dms Co., Ltd. Fluorescent lamp and manufacturing method thereof

Families Citing this family (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE102004018590A1 (de) * 2004-04-16 2005-11-03 Patent-Treuhand-Gesellschaft für elektrische Glühlampen mbH Leuchtstoffzusammensetzung für eine Niederdruckentladungslampe mit sehr hoher Farbtemperatur
DE102005050306B3 (de) * 2005-10-20 2007-03-15 Minebea Co., Ltd. Elektrodenlose Gasentladungslampe

Family Cites Families (32)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3141990A (en) * 1960-04-06 1964-07-21 Sylvania Electric Prod Fluorescent lamp having a tio2 coating on the inner surface of the bulb
US3521120A (en) * 1968-03-20 1970-07-21 Gen Electric High frequency electrodeless fluorescent lamp assembly
NL169533C (nl) * 1971-08-28 1982-07-16 Philips Nv Lagedrukkwikdampontladingslamp.
DE2601664C3 (de) * 1975-01-20 1980-07-24 General Electric Co., Schenectady, N.Y. (V.St.A.) Leuchtstofflampe
US3987335A (en) * 1975-01-20 1976-10-19 General Electric Company Electrodeless fluorescent lamp bulb RF power energized through magnetic core located partially within gas discharge space
DE2659859C2 (de) * 1975-01-20 1985-08-01 General Electric Co., Schenectady, N.Y. Vorrichtung zur Aufrechterhaltung einer elektrischen Entladung
US4010400A (en) * 1975-08-13 1977-03-01 Hollister Donald D Light generation by an electrodeless fluorescent lamp
DE2826091A1 (de) * 1978-06-14 1980-01-03 Patra Patent Treuhand Quecksilberdampf-niederdruckentladungslampe fuer bestrahlungszwecke
US4298828A (en) * 1979-02-21 1981-11-03 Westinghouse Electric Corp. High frequency electrodeless lamp having a gapped magnetic core and method
NL7901897A (nl) * 1979-03-09 1980-09-11 Philips Nv Elektrodeloze gasontladingslamp.
US4357559A (en) * 1980-03-17 1982-11-02 General Electric Company Fluorescent lamp utilizing phosphor combination
NL8202778A (nl) * 1982-07-09 1984-02-01 Philips Nv Lagedrukkwikdampontladingslamp.
JPH0619975B2 (ja) * 1984-04-18 1994-03-16 松下電子工業株式会社 三波長域発光形螢光ランプ
NL8500738A (nl) * 1985-03-14 1986-10-01 Philips Nv Elektrodeloze lagedrukontladingslamp.
NL8500736A (nl) * 1985-03-14 1986-10-01 Philips Nv Elektrodeloze lagedrukontladingslamp.
SE458365B (sv) * 1987-04-27 1989-03-20 Lumalampan Ab Gasurladdningslampa av metallaangtyp
US4923425A (en) * 1987-06-12 1990-05-08 Gte Products Corporation Fluorescent lamp with a predetermined CRI and method for making
DE3729711A1 (de) * 1987-09-04 1989-03-23 Patent Treuhand Ges Fuer Elektrische Gluehlampen Mbh Quecksilberniederdruckentladungslampe zur uv-bestrahlung
GB8823691D0 (en) * 1988-10-08 1988-11-16 Emi Plc Thorn Aquarium lighting
US5105122A (en) * 1989-08-18 1992-04-14 U.S. Philips Corporation Electrodeless low-pressure mercury vapor discharge lamp
US5051277A (en) * 1990-01-22 1991-09-24 Gte Laboratories Incorporated Method of forming a protective bi-layer coating on phosphore particles
EP0550937B1 (fr) * 1992-01-07 1997-03-19 Koninklijke Philips Electronics N.V. Lampe à décharge dans la vapeur de mercure à basse pression
US5714836A (en) * 1992-08-28 1998-02-03 Gte Products Corporation Fluorescent lamp with improved phosphor blend
US6057649A (en) * 1993-05-11 2000-05-02 U.S. Philips Corporation Illumination unit, electrodeless low-pressure discharge lamp, and coil suitable for use therein
GB9310100D0 (en) * 1993-05-17 1993-06-30 Ge Lighting Ltd Fluorescent lamp for use in aquaria
US5604396A (en) * 1993-07-30 1997-02-18 Toshiba Lighting & Technology Corporation Luminescent material for mercury discharge lamp including phosphor and a continuous protective layer
US5898265A (en) * 1996-05-31 1999-04-27 Philips Electronics North America Corporation TCLP compliant fluorescent lamp
EP0924746B1 (fr) * 1997-12-19 2003-10-08 Koninklijke Philips Electronics N.V. Lampe à décharge basse pression au mercure
US6144152A (en) * 1997-12-19 2000-11-07 U.S. Phillips Corporation Luminescent screen for low pressure mercury discharge lamp with specific emission range
JPH11312491A (ja) * 1998-04-28 1999-11-09 Matsushita Electron Corp 蛍光ランプおよびその製造方法
KR100582333B1 (ko) * 1998-11-12 2006-05-23 코닌클리즈케 필립스 일렉트로닉스 엔.브이. 저압 수은 증기 방전 램프
US20020067129A1 (en) * 1999-05-03 2002-06-06 John C. Chamberlain Ferrite core for electrodeless flourescent lamp operating at 50-500 khz

Non-Patent Citations (1)

* Cited by examiner, † Cited by third party
Title
None *

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US7727042B2 (en) 2005-12-26 2010-06-01 Dms Co., Ltd. Fluorescent lamp and manufacturing method thereof

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DE10058852A1 (de) 2002-06-06
ATE367648T1 (de) 2007-08-15
EP1340243A1 (fr) 2003-09-03
DE50112745D1 (de) 2007-08-30
AU2002224741A1 (en) 2002-06-03
WO2002043107A1 (fr) 2002-05-30
RU2003119071A (ru) 2004-12-10

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