EP0808085B1 - Alimentation à haute fréquence pour une lampe à décharge basse pression avec une compatibilité électromagnétique accrue - Google Patents

Alimentation à haute fréquence pour une lampe à décharge basse pression avec une compatibilité électromagnétique accrue Download PDF

Info

Publication number
EP0808085B1
EP0808085B1 EP97107207A EP97107207A EP0808085B1 EP 0808085 B1 EP0808085 B1 EP 0808085B1 EP 97107207 A EP97107207 A EP 97107207A EP 97107207 A EP97107207 A EP 97107207A EP 0808085 B1 EP0808085 B1 EP 0808085B1
Authority
EP
European Patent Office
Prior art keywords
capacitor
push
frequency generator
pump
diodes
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Expired - Lifetime
Application number
EP97107207A
Other languages
German (de)
English (en)
Other versions
EP0808085A2 (fr
EP0808085A3 (fr
Inventor
Felix Dr. Franck
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Osram GmbH
Original Assignee
Patent Treuhand Gesellschaft fuer Elektrische Gluehlampen mbH
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Patent Treuhand Gesellschaft fuer Elektrische Gluehlampen mbH filed Critical Patent Treuhand Gesellschaft fuer Elektrische Gluehlampen mbH
Publication of EP0808085A2 publication Critical patent/EP0808085A2/fr
Publication of EP0808085A3 publication Critical patent/EP0808085A3/fr
Application granted granted Critical
Publication of EP0808085B1 publication Critical patent/EP0808085B1/fr
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

Links

Images

Classifications

    • H—ELECTRICITY
    • H05—ELECTRIC TECHNIQUES NOT OTHERWISE PROVIDED FOR
    • H05B—ELECTRIC HEATING; ELECTRIC LIGHT SOURCES NOT OTHERWISE PROVIDED FOR; CIRCUIT ARRANGEMENTS FOR ELECTRIC LIGHT SOURCES, IN GENERAL
    • H05B41/00—Circuit arrangements or apparatus for igniting or operating discharge lamps
    • H05B41/14—Circuit arrangements
    • H05B41/26—Circuit arrangements in which the lamp is fed by power derived from DC by means of a converter, e.g. by high-voltage DC
    • H05B41/28—Circuit arrangements in which the lamp is fed by power derived from DC by means of a converter, e.g. by high-voltage DC using static converters
    • H—ELECTRICITY
    • H05—ELECTRIC TECHNIQUES NOT OTHERWISE PROVIDED FOR
    • H05B—ELECTRIC HEATING; ELECTRIC LIGHT SOURCES NOT OTHERWISE PROVIDED FOR; CIRCUIT ARRANGEMENTS FOR ELECTRIC LIGHT SOURCES, IN GENERAL
    • H05B41/00—Circuit arrangements or apparatus for igniting or operating discharge lamps
    • H05B41/14—Circuit arrangements
    • H05B41/26—Circuit arrangements in which the lamp is fed by power derived from DC by means of a converter, e.g. by high-voltage DC
    • H05B41/28—Circuit arrangements in which the lamp is fed by power derived from DC by means of a converter, e.g. by high-voltage DC using static converters
    • H05B41/295—Circuit arrangements in which the lamp is fed by power derived from DC by means of a converter, e.g. by high-voltage DC using static converters with semiconductor devices and specially adapted for lamps with preheating electrodes, e.g. for fluorescent lamps
    • H—ELECTRICITY
    • H05—ELECTRIC TECHNIQUES NOT OTHERWISE PROVIDED FOR
    • H05B—ELECTRIC HEATING; ELECTRIC LIGHT SOURCES NOT OTHERWISE PROVIDED FOR; CIRCUIT ARRANGEMENTS FOR ELECTRIC LIGHT SOURCES, IN GENERAL
    • H05B45/00—Circuit arrangements for operating light-emitting diodes [LED]
    • H05B45/30—Driver circuits
    • H05B45/355—Power factor correction [PFC]; Reactive power compensation

Definitions

  • the present invention relates to an operating circuit for one or more Discharge lamps that are operated with high-frequency power should.
  • the high frequency operation of discharge lamps has besides the avoidance a line frequency modulation of the emitted light during mains operation the advantage of a significant increase in lamp efficiency.
  • Ballasts are referred to C. H. Sturm and E. Klein “control gear and circuits for electric lamps ", 6th edition 1992, Siemens AG, in particular Pages 121 to 137, as well as on W. Hirschmann “Electronics Circuits", 1982, Siemens AG, pages 147 and 148.
  • the invention is based on a circuit for high-frequency operation at least one discharge lamp according to the preamble of claim 1.
  • Fig. 1 shows the corresponding circuit structure, the above capacitors are designated there with C6 and CT2.
  • the label the other components correspond to the reference symbols in the preamble of claim 1. To further describe this circuit is on referred to below the description of the invention, whose in Fig. 2 embodiment shown on the circuit shown in Fig. 1 builds up.
  • the invention is based on the technical problem, the operating properties the circuit from the prior art with special consideration to further improve electromagnetic compatibility.
  • a trapezoidal capacitor connected behind the pump capacitor, as described above has the advantage that the push-pull frequency generator instead with a parallel connection with a series connection of pump capacitor and trapezoidal capacitor is capacitively loaded.
  • the switching relief of the transistors of the push-pull frequency generator is even more difficult to achieve the greater the capacity connected directly to its center tap is.
  • trapezoidal capacitor used in this technical Naturalized area and denotes a generally relatively small one Capacitor, which is used for the temporal “damping" of recharging and potential jump processes serves that without it relatively “hard”, i.e. with very steep Potential-time edges would run through the trapezoidal capacitor however, get a beveled, trapezoidal potential-time form.
  • connection point is between the two diodes across the pump capacitor with a point between connected to the center tap of the push-pull frequency generator Resonance inductance and the connection of the first lamp electrode connected.
  • this pump branch is a trapezoidal capacitor assigned by this on the pump branch side at the connection point between the diodes is connected.
  • connection point between the two diodes via the pump capacitor connected to the center tap of the push-pull frequency generator Analogous a trapezoidal capacitor is assigned to this pump branch, this on the pump branch side at the center tap between the diodes connected.
  • a typical rating for the capacitance of the trapezoidal capacitor (s) can be one fifth to one twentieth, preferably one tenth the capacitance of the respective capacitor (s) in the corresponding Be pump branches.
  • Fig. 1 shows a schematic circuit diagram of a the preamble of Claim 1 forming circuit from the prior art.
  • Fig. 2 shows the embodiment.
  • the rectified voltage becomes about one described below Diodes D1 to D4 belonging to harmonic filters and via the between the plus and the minus line located in the figures above switched smoothing capacitor C4 a half bridge made of two bipolar transistors T1 and T2 fed. Together with one not shown Control transmitter for controlling the bases of T1 and T2 is therefore a Push-pull frequency generator formed, which, to put it graphically, the potential the center tap between the transistors alternately to the potential the plus and the minus line pushes. For the sake of clarity are not essential circuit parts in the figures for the principle of the invention omitted, such as the tax transmitter, which is still below mentioned starting circuit, ballast resistors u. Like ..
  • the control transmitter is, in particular, in the documents cited at the beginning also at C.H. Sturm and E. Klein and with W. Hirschmann, described and consists essentially of a primary winding in series with one on the Center tap between the transistors T1 and T2 connected resonance inductance L1 and two secondary windings wound in opposite directions in the drive circuits to the bases of the transistors.
  • the saturation inductance is designed so that there are short breaks between the line periods of the two transistors T1 and T2 result.
  • the starting circuit consists essentially of a capacitor, which is at the forward voltage of a DIAC through it into one of the transistor bases discharges and is also described in the cited writings.
  • the transistors are each with freewheeling diodes parallel to the switching path Clear the space charges in the transistors in the blocked state.
  • a series connection of the resonance inductance L1 Between the center tap and the lower (i.e. minus) outside tap of the Push-pull frequency generator is a series connection of the resonance inductance L1, a low pressure discharge lamp, i.e. their discharge route, and a coupling capacitor C5 connected for DC isolation.
  • the Diode forward direction of the direct current direction from the mains rectifier corresponds.
  • a center tap of the diode series connection D1 and D2 on the one hand and a connection point between the resonance inductance L1 and the corresponding terminal of the lamp on the other hand is one Pump capacitor C1 switched, with which a first pump branch of a harmonic filter is formed.
  • a second pump branch is correspondingly made of the diodes D3 and D4 and that between their center tap and the center tap of the Push-pull frequency generator switched pump capacitor C2 formed.
  • the pump branch D1, D2, C1 engages a high-frequency potential between L1 and the lamp leads through the capacitor C1 a conversion into one Pump current through and supplemented with this rectified by the diodes D1 and D2 Current the voltage UG to voltage E.
  • the other pump branches D3, D4, C2 using the potential at the center tap the transistor bridge.
  • Task of this harmonic filter with branches D1, D2, C1 and D3, D4, C2 is opposed to one by returning energy to the smoothing capacitor C4 of the voltage UG at the support capacitor C3 is the smoothest possible voltage E and generate a sinusoidal mains current consumption as possible of the mains rectifier.
  • the electromagnetic Compatibility not only with regard to the feedback into the DC voltage source, so here via the rectifier circuit into the network, optimized be, but also in terms of electromagnetic radiation. To further Details are referred to the cited publications, in particular to EP 0 253 224 B1.
  • the lower connection of the capacitor CT2 is, so to speak shifted, namely behind the pump capacitor C2, so that the capacitor 2 between the center tap between D3 and D4 on the one hand and the upper positive line, i.e. the upper external tap of the push-pull frequency generator on the other hand. It therefore forms a trapezoidal capacitor in series with C2 for the push-pull frequency generator and also a trapezoidal capacitor for the pump branch D3, D4, C2.
  • C6 parallel lamp resonance capacitor is according to the invention in the same way behind a pump capacitor, namely behind that of the other pump branch, C1, shifted. There it is shown in Fig. 2 and designated CT1.
  • the lamp-parallel resonance capacitor C6 mentally omits, there is also only a diode, transistors and the lamp with the potential ultimately defined by the network "Frame" of the circuit connected circuit part from L1, C1, CT2 and C2. This results in short periods in which none of the semiconductor devices conducts, a "free floating" (quasi floating) state of this circuit part, which leads to sharp potential jumps when the circuit part, so to speak is caught again (so-called "chatter").
  • they work Capacitors CT1 and CT2 in Fig. 2, one of the two, again as trapezoidal capacitors and thus improve the electromagnetic Compatibility of the overall circuit.

Landscapes

  • Circuit Arrangements For Discharge Lamps (AREA)

Claims (6)

  1. Circuit pour l'alimentation à haute fréquence d'au moins une lampe à décharge comportant
    un redresseur de réseau maintenu de manière capacitive (C3),
    un générateur de fréquence symétrique raccordé au redresseur de réseau et comportant une prise médiane pour une première électrode de lampe à raccorder par l'intermédiaire d'une inductance à résonance (L1) et deux prises extérieures dont l'une est prévue pour l'autre électrode de lampe,
    un condensateur de lissage (C4) entre les prises extérieures du générateur de fréquence symétrique, et
    un filtre d'harmoniques actif comportant au moins une branche de pompage capacitive avec un circuit série composé de deux diodes (D1, D2 ; D3, D4) entre une borne du condensateur de maintien (C3) du redresseur de réseau et une prise médiane du générateur de fréquence symétrique, le sens passant des diodes correspondant à la polarité du redresseur de réseau, et avec au moins un condensateur de pompage (C1 ; C2) pour le renvoi d'énergie au condensateur de lissage (C4) d'un point de connexion côté lampe entre !a prise médiane du générateur de fréquence symétrique et/ou la liaison entre l'inductance à résonance (L1) et la première électrode de lampe et un point de connexion entre les deux diodes (D1, D2 ; D3, D4),
       caractérisé par le fait que
    un condensateur trapézoïdal (CT1 ; CT2) est prévu entre le point de connexion entre les deux diodes (D1, D2 ; D3, D4) et l'une des prises extérieures du générateur de fréquence symétrique et donc
    le ou les condensateurs de pompage (C1 ; C2) de la ou des branches de pompage sont les seuls condensateurs raccordés à charge purement capacitive sur la prise médiane du générateur de fréquence symétrique et/ou sur la liaison entre l'inductance à résonance et la première électrode de lampe.
  2. Circuit selon la revendication 1, dans lequel la lampe à décharge est une lampe à décharge basse pression.
  3. Circuit selon la revendication 1, dans lequel le point de connexion entre les deux diodes (D1, D2) est relié par l'intermédiaire du condensateur (C1) à un point entre l'inductance à résonance (L1) raccordée à la prise médiane du générateur de fréquence symétrique et la borne de la première électrode de lampe et dans lequel un condensateur trapézoïdal (CT1) est associé à cette branche de pompage.
  4. Circuit selon la revendication 1, dans lequel le point de connexion entre les deux diodes (D3, D4) est relié par l'intermédiaire du condensateur (C2) à la prise médiane du générateur de fréquence symétrique et dans lequel un condensateur trapézoïdal (CT2) est associé à cette branche de pompage.
  5. Circuit selon l'une des revendications précédentes avec deux branches de pompage, dans lequel un condensateur trapézoïdal (CT1 ; CT2) est associé à chaque branche de pompage.
  6. Circuit selon l'une des revendications précédentes, dans lequel le ou les condensateurs de pompage (CT1 ; CT2) présentent chacun environ un dixième de la capacité du ou des condensateurs (C1 ; C2) respectifs dans les branches de pompage correspondantes.
EP97107207A 1996-05-15 1997-04-30 Alimentation à haute fréquence pour une lampe à décharge basse pression avec une compatibilité électromagnétique accrue Expired - Lifetime EP0808085B1 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE19619581 1996-05-15
DE19619581A DE19619581A1 (de) 1996-05-15 1996-05-15 Hochfrequenzbetriebsschaltung für eine Niederdruckentladungslampe mit verbesserter elektromagnetischer Verträglichkeit

Publications (3)

Publication Number Publication Date
EP0808085A2 EP0808085A2 (fr) 1997-11-19
EP0808085A3 EP0808085A3 (fr) 1998-11-18
EP0808085B1 true EP0808085B1 (fr) 2001-11-21

Family

ID=7794388

Family Applications (1)

Application Number Title Priority Date Filing Date
EP97107207A Expired - Lifetime EP0808085B1 (fr) 1996-05-15 1997-04-30 Alimentation à haute fréquence pour une lampe à décharge basse pression avec une compatibilité électromagnétique accrue

Country Status (4)

Country Link
US (1) US5880564A (fr)
EP (1) EP0808085B1 (fr)
CA (1) CA2205344C (fr)
DE (2) DE19619581A1 (fr)

Families Citing this family (12)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE19725645A1 (de) * 1997-06-18 1998-12-24 Patent Treuhand Ges Fuer Elektrische Gluehlampen Mbh Pumpstützdrossel
IT1296492B1 (it) 1997-11-21 1999-06-25 Whirlpool Co Sistema per indicare il calore residuo delle griglie di apparecchi domestici di cottura a gas
US6137234A (en) * 1999-10-18 2000-10-24 U.S. Philips Corporation Circuit arrangement
US6356034B1 (en) 2000-03-22 2002-03-12 Regal King Manufacturing Limited Low voltage discharge lamp power supply
CN1190110C (zh) * 2001-04-03 2005-02-16 马士科技有限公司 荧光灯的电子镇流器的输出电路
US7002301B2 (en) * 2003-10-15 2006-02-21 Lutron Electronics Co., Inc. Apparatus and methods for making capacitive measurements of cathode fall in fluorescent lamps
TWI281364B (en) * 2004-07-28 2007-05-11 Delta Electronics Inc Electronic ballast
DE102004045514A1 (de) * 2004-09-20 2006-03-30 Patent-Treuhand-Gesellschaft für elektrische Glühlampen mbH Schaltungsanordnung zum Betrieb mindestens einer Lichtquelle
US7863827B2 (en) * 2008-05-23 2011-01-04 Osram Sylvania Inc. Ceramic metal halide lamp bi-modal power regulation control
CN101466191B (zh) * 2009-01-08 2012-07-04 王家诚 大功率并联自激式无极荧光灯高频电子变频器
CN103491694B (zh) * 2013-08-27 2016-03-09 钟海停 荧光灯节能专用模块
RU194944U1 (ru) * 2019-08-29 2019-12-30 Федеральное государственное бюджетное учреждение "Петербургский институт ядерной физики им. Б.П. Константинова Национального исследовательского центра "Курчатовский институт" (НИЦ "Курчатовский институт" - ПИЯФ) Ключевой двухтактный генератор гармонических колебаний

Family Cites Families (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE3623749A1 (de) * 1986-07-14 1988-01-21 Patent Treuhand Ges Fuer Elektrische Gluehlampen Mbh Schaltungsanordnung zum betrieb von niederdruckentladungslampen
US6118225A (en) * 1994-08-22 2000-09-12 U.S. Philips Corporation High frequency discharge lamp operating circuit with resonant power factor correction circuit

Also Published As

Publication number Publication date
US5880564A (en) 1999-03-09
CA2205344C (fr) 2004-09-28
DE19619581A1 (de) 1997-11-20
EP0808085A2 (fr) 1997-11-19
EP0808085A3 (fr) 1998-11-18
DE59705440D1 (de) 2002-01-03
CA2205344A1 (fr) 1997-11-15

Similar Documents

Publication Publication Date Title
DE69117008T2 (de) Wechselrichteranordnung
EP0253224B1 (fr) Disposition de circuit pour la mise en oeuvre de lampes à décharge basse-pression
CH656753A5 (de) Gleichrichtervorrichtung mit gesiebter ausgangsspannung.
EP0781077A2 (fr) Circuit pour alimenter une lampe
EP0808085B1 (fr) Alimentation à haute fréquence pour une lampe à décharge basse pression avec une compatibilité électromagnétique accrue
DE10056022A1 (de) AC-Dc-Wandler
EP1514456B1 (fr) Appareil electronique auxiliaire muni d'une lampe de charge pour la correction active du facteur de puissance
EP0973359A2 (fr) Ballast électronique avec limitation du courant d'appel
DE102005016047A1 (de) Umschaltbarer Spannungswandler
WO2023134898A1 (fr) Étage de commutation de sortie permettant d'éviter la luminescence résiduelle
EP1485982B1 (fr) Circuit de correction du facteur de puissance electrique
DE10310577A1 (de) Nullspannungsfilter für Umrichter mit selbstgeführtem Netzstromrichter (AFE) und Gleichspannungszwischenkreis
DE19781010B4 (de) Stromversorgungsvorrichtung
EP1589645A2 (fr) Circuit pour convertir une tension alternative en tension continue
DE10138751B4 (de) Wechselrichter mit schnellschaltenden ansteuerbaren elektronischen Schaltern, insbesondere IGBT-Schaltern, sowie Verfahren zur Ansteuerung eines derartigen Wechselrichters
EP0263936B1 (fr) Alimentation de puissance à commutation sur le circuit secondaire
EP1076405B1 (fr) Redresseur avec alimentation au point milieu
DE69725788T2 (de) Nullspannungsschaltender VHF Serienresonanzwechselrichter mit mehreren Ausgängen
EP0992113B1 (fr) Commande a demi-pont sans pics de courant de polarisation au collecteur
EP1540803B1 (fr) Circuit electrique convertisseur de tension et utilisation du circuit electrique
EP1266545B1 (fr) Transformateur electronique
DE3519414C2 (de) Transistorwechselrichterschaltung
DE102004033377A1 (de) Schaltungsanordnung mit einer schalterentlasteten Vollbrücke zum Betrieb von Lampen
AT405228B (de) Netzgleichrichterschaltung
EP1213820A2 (fr) Convertisseur de tension pour plusieurs utilisateurs indépendants

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

AK Designated contracting states

Kind code of ref document: A2

Designated state(s): BE DE FR GB IT NL

PUAL Search report despatched

Free format text: ORIGINAL CODE: 0009013

AK Designated contracting states

Kind code of ref document: A3

Designated state(s): BE DE FR GB IT NL

17P Request for examination filed

Effective date: 19981204

17Q First examination report despatched

Effective date: 19990201

RIC1 Information provided on ipc code assigned before grant

Free format text: 7H 05B 41/28 A, 7H 02M 1/12 B

GRAG Despatch of communication of intention to grant

Free format text: ORIGINAL CODE: EPIDOS AGRA

GRAG Despatch of communication of intention to grant

Free format text: ORIGINAL CODE: EPIDOS AGRA

GRAH Despatch of communication of intention to grant a patent

Free format text: ORIGINAL CODE: EPIDOS IGRA

GRAH Despatch of communication of intention to grant a patent

Free format text: ORIGINAL CODE: EPIDOS IGRA

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: IF02

REF Corresponds to:

Ref document number: 59705440

Country of ref document: DE

Date of ref document: 20020103

GBT Gb: translation of ep patent filed (gb section 77(6)(a)/1977)

Effective date: 20020125

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
PGFP Annual fee paid to national office [announced via postgrant information from national office to epo]

Ref country code: NL

Payment date: 20060404

Year of fee payment: 10

PGFP Annual fee paid to national office [announced via postgrant information from national office to epo]

Ref country code: BE

Payment date: 20060419

Year of fee payment: 10

BERE Be: lapsed

Owner name: *PATENT-TREUHAND-G.- FUR ELEKTRISCHE GLUHLAMPEN M.

Effective date: 20070430

NLV4 Nl: lapsed or anulled due to non-payment of the annual fee

Effective date: 20071101

PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

Ref country code: NL

Free format text: LAPSE BECAUSE OF NON-PAYMENT OF DUE FEES

Effective date: 20071101

PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

Ref country code: BE

Free format text: LAPSE BECAUSE OF NON-PAYMENT OF DUE FEES

Effective date: 20070430

PGFP Annual fee paid to national office [announced via postgrant information from national office to epo]

Ref country code: FR

Payment date: 20110427

Year of fee payment: 15

PGFP Annual fee paid to national office [announced via postgrant information from national office to epo]

Ref country code: GB

Payment date: 20110414

Year of fee payment: 15

PGFP Annual fee paid to national office [announced via postgrant information from national office to epo]

Ref country code: IT

Payment date: 20110422

Year of fee payment: 15

REG Reference to a national code

Ref country code: DE

Ref legal event code: R081

Ref document number: 59705440

Country of ref document: DE

Owner name: OSRAM GMBH, DE

Free format text: FORMER OWNER: OSRAM GESELLSCHAFT MIT BESCHRAENKTER HAFTUNG, 81543 MUENCHEN, DE

Effective date: 20111130

REG Reference to a national code

Ref country code: DE

Ref legal event code: R084

Ref document number: 59705440

Country of ref document: DE

Effective date: 20120423

GBPC Gb: european patent ceased through non-payment of renewal fee

Effective date: 20120430

REG Reference to a national code

Ref country code: FR

Ref legal event code: ST

Effective date: 20121228

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: 20120430

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: 20120430

Ref country code: IT

Free format text: LAPSE BECAUSE OF NON-PAYMENT OF DUE FEES

Effective date: 20120430

REG Reference to a national code

Ref country code: DE

Ref legal event code: R081

Ref document number: 59705440

Country of ref document: DE

Owner name: OSRAM GMBH, DE

Free format text: FORMER OWNER: OSRAM AG, 81543 MUENCHEN, DE

Effective date: 20130205

REG Reference to a national code

Ref country code: DE

Ref legal event code: R081

Ref document number: 59705440

Country of ref document: DE

Owner name: OSRAM GMBH, DE

Free format text: FORMER OWNER: OSRAM GMBH, 81543 MUENCHEN, DE

Effective date: 20130822

PGFP Annual fee paid to national office [announced via postgrant information from national office to epo]

Ref country code: DE

Payment date: 20150421

Year of fee payment: 19

REG Reference to a national code

Ref country code: DE

Ref legal event code: R119

Ref document number: 59705440

Country of ref document: DE

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: 20161101