EP1746340A2 - Optisches Modul für eine Kfz-Beleuchtungseinrichtung - Google Patents

Optisches Modul für eine Kfz-Beleuchtungseinrichtung Download PDF

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Publication number
EP1746340A2
EP1746340A2 EP06291099A EP06291099A EP1746340A2 EP 1746340 A2 EP1746340 A2 EP 1746340A2 EP 06291099 A EP06291099 A EP 06291099A EP 06291099 A EP06291099 A EP 06291099A EP 1746340 A2 EP1746340 A2 EP 1746340A2
Authority
EP
European Patent Office
Prior art keywords
module
optical element
reflector
cache
additional optical
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.)
Granted
Application number
EP06291099A
Other languages
English (en)
French (fr)
Other versions
EP1746340A3 (de
EP1746340B1 (de
Inventor
Jean-Luc Meyrenaud
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.)
Valeo Vision SAS
Original Assignee
Valeo Vision SAS
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 Valeo Vision SAS filed Critical Valeo Vision SAS
Priority to SI200630421T priority Critical patent/SI1746340T1/sl
Priority to PL06291099T priority patent/PL1746340T3/pl
Publication of EP1746340A2 publication Critical patent/EP1746340A2/de
Publication of EP1746340A3 publication Critical patent/EP1746340A3/de
Application granted granted Critical
Publication of EP1746340B1 publication Critical patent/EP1746340B1/de
Not-in-force legal-status Critical Current
Anticipated expiration legal-status Critical

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Classifications

    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F21—LIGHTING
    • F21S—NON-PORTABLE LIGHTING DEVICES; SYSTEMS THEREOF; VEHICLE LIGHTING DEVICES SPECIALLY ADAPTED FOR VEHICLE EXTERIORS
    • F21S41/00—Illuminating devices specially adapted for vehicle exteriors, e.g. headlamps
    • F21S41/40—Illuminating devices specially adapted for vehicle exteriors, e.g. headlamps characterised by screens, non-reflecting members, light-shielding members or fixed shades
    • F21S41/43—Illuminating devices specially adapted for vehicle exteriors, e.g. headlamps characterised by screens, non-reflecting members, light-shielding members or fixed shades characterised by the shape thereof
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F21—LIGHTING
    • F21S—NON-PORTABLE LIGHTING DEVICES; SYSTEMS THEREOF; VEHICLE LIGHTING DEVICES SPECIALLY ADAPTED FOR VEHICLE EXTERIORS
    • F21S41/00—Illuminating devices specially adapted for vehicle exteriors, e.g. headlamps
    • F21S41/30—Illuminating devices specially adapted for vehicle exteriors, e.g. headlamps characterised by reflectors
    • F21S41/32—Optical layout thereof
    • F21S41/321—Optical layout thereof the reflector being a surface of revolution or a planar surface, e.g. truncated
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F21—LIGHTING
    • F21S—NON-PORTABLE LIGHTING DEVICES; SYSTEMS THEREOF; VEHICLE LIGHTING DEVICES SPECIALLY ADAPTED FOR VEHICLE EXTERIORS
    • F21S41/00—Illuminating devices specially adapted for vehicle exteriors, e.g. headlamps
    • F21S41/30—Illuminating devices specially adapted for vehicle exteriors, e.g. headlamps characterised by reflectors
    • F21S41/32—Optical layout thereof
    • F21S41/33—Multi-surface reflectors, e.g. reflectors with facets or reflectors with portions of different curvature
    • F21S41/337—Multi-surface reflectors, e.g. reflectors with facets or reflectors with portions of different curvature the reflector having a structured surface, e.g. with facets or corrugations
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F21—LIGHTING
    • F21S—NON-PORTABLE LIGHTING DEVICES; SYSTEMS THEREOF; VEHICLE LIGHTING DEVICES SPECIALLY ADAPTED FOR VEHICLE EXTERIORS
    • F21S41/00—Illuminating devices specially adapted for vehicle exteriors, e.g. headlamps
    • F21S41/30—Illuminating devices specially adapted for vehicle exteriors, e.g. headlamps characterised by reflectors
    • F21S41/32—Optical layout thereof
    • F21S41/36—Combinations of two or more separate reflectors
    • F21S41/365—Combinations of two or more separate reflectors successively reflecting the light
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F21—LIGHTING
    • F21S—NON-PORTABLE LIGHTING DEVICES; SYSTEMS THEREOF; VEHICLE LIGHTING DEVICES SPECIALLY ADAPTED FOR VEHICLE EXTERIORS
    • F21S41/00—Illuminating devices specially adapted for vehicle exteriors, e.g. headlamps
    • F21S41/60—Illuminating devices specially adapted for vehicle exteriors, e.g. headlamps characterised by a variable light distribution
    • F21S41/68—Illuminating devices specially adapted for vehicle exteriors, e.g. headlamps characterised by a variable light distribution by acting on screens
    • F21S41/683—Illuminating devices specially adapted for vehicle exteriors, e.g. headlamps characterised by a variable light distribution by acting on screens by moving screens

Definitions

  • the present invention relates to an optical module for automobile lighting device of the projector type. It applies more particularly to optical modules called elliptical modules comprising a light source associated with a reflector and closed by a dioptric element of the convergent lens type, for example a plano-convex lens, Fresnel lens.
  • the invention is concerned with optical modules equipped with a fixed or movable cover able to intercept at least partially, depending on its position, the light beam emitted by the light source / reflector assembly.
  • the shape of the upper edge of the cache makes it possible to define the desired cut in the beam by imaging with the convergent lens.
  • the mobile cover on command and thanks to the presence of a motor, can take different positions with respect to the light source, including at least one position called “active” optically, that is to say a position where it obscures actually a part of the light beam, in particular for the module to emit a cut-off beam, such as a cross beam (oblique cut) or anti-fog (horizontal cut).
  • the cache may thus have one or more "active" positions, for example two, one for the traffic crossing function on the right and one for the traffic function on the left, and also a so-called “passive” function where it does not block the beam. light, thus allowing the module to emit light beams without cutoff of the road beam type.
  • the patent FR 2 754 039 which describes modules able to emit crossover beams or anti fog for example.
  • the cache is fixed or mobile, and whatever the type of cut that it defines in the beam, it remains that all the luminous flux which is intercepted by the cache is lost, and the light output, that is to say the ratio between the light emitted by the lamp and that returned at the output of the optical module, is not very satisfactory.
  • the object of the invention is therefore the development of a cache optical module of the type described above, in particular of the elliptical type, which has improved optical performance.
  • it is a question of being able to increase the luminous efficiency of this type of module, without deteriorating the regulatory photometric characteristics of the cut-off beams obtained.
  • the invention aims to achieve this goal without disrupting the design of current optical modules.
  • an additional optical element is disposed between the light source and the cover, said additional optical element being in the vicinity of the optically active edge of the cover and having at least one reflective surface capable of redirecting above the optically active edge of the spoke cover. light emitted by the source towards said cache.
  • At least one point of the additional optical element is located between the focus of the dioptric element of the convergent lens type and the reflector: this additional optical element is at least partly, in particular completely, disposed between the source and the cache , or between the reflector and the cover.
  • source-light rays means the rays directly emitted by the source and the rays indirectly emitted by the source, namely the rays emitted by the source and then reflected, in particular at least one times by the wall of the reflector in which the light source is located.
  • the optical module is of elliptical module type: the source is placed at a first rear focus of the reflector, or in the vicinity thereof, and the dioptric element is placed at the internal focus of the reflector or in the vicinity thereof .
  • the reflector is then shaped close to an ellipsoid.
  • the additional optical element can be integral or even integral part of the cache. It is possible to mount the optical element on the cover or the support of the cover by any known fastening means, in particular by clipping, crimping, welding, gluing, overmolding. We can also make the cache (or its support) and this optical element one piece.
  • the reflecting surface of the additional optical element preferably has an upwardly facing face, the leading edge of which substantially follows, at least locally, the profile of the optically active edge of the mask. This means that the front edge of the element substantially adopts the shape of the edge of the cache. Indeed, this choice has been judicious to minimize the risk of creating blur in the beam emitted by the module in the vicinity of the cut.
  • front is understood throughout the present text according to the position of the module once integrated, possibly in a projector, and mounted on a vehicle in normal operating mode.
  • One embodiment is that the front edge of the additional optical element is attached to the optically active edge of the cache.
  • the reflecting surface of the additional optical element has an upwardly facing face and is preferably disposed adjacent to only the central portion of the cover.
  • the reflective surface of the additional optical element has an upwardly facing face and has a notch at its rear edge.
  • the indentation can actually delimit two side zones that extend rearward to further enhance the recovery of light by coming "surround” the lamp (of course respecting a sufficient distance with the lamp).
  • the front edge of the face in question preferably comprises a broken line, namely a succession of line segments, without excluding possibly also curve portions.
  • This front edge is substantially preferably a generator for the shape of the upwardly facing face mentioned above. is then composed, for example, a succession of inclined planes relative to each other substantially aligned along the optical axis of the module.
  • the rear edge of the face in question preferably has a profile similar to, or identical to that of the front edge. It can also have a different profile, curve for example.
  • This face is preferably disposed in a substantially horizontal plane and transversely to the optical axis of the reflector, as may be the case of the cache as well.
  • Its width is then understood by its dimension measured parallel to the optical axis, and its length perpendicular to it. In this case, its width (its smallest dimension) is at least 8 times, in particular at least 10 times smaller than its length (its largest dimension).
  • Its thickness is low.
  • the additional optical element may be in the form of a plate of 2 to 6 mm, in particular 3 to 4 mm wide, and 35 to 60, in particular 40 to 50 mm long. And its thickness can be from 0.2 to 1.5 or 2 mm.
  • this face is curved along its length / largest dimension, with for example an arrow in the center of the order of 0.5 to 4 mm, especially 1 to 2 mm .
  • the curved shape (upwards) is advantageous for contributing to ensuring good linearity of the cutoff of the light beam. It can help to compensate for any optical defects inherent in the reflector or the dioptric element.
  • the reflecting surface of the additional optical element has an upwardly facing face which is smooth. According to another embodiment, it comprises, at least locally, streaks and / or corrugations. These surface modifications give an additional possibility of controlling the distribution of the rays recovered in the beam emitted by the module: they make it possible in particular to spread the beam. They can be distributed over the entire reflecting surface, including the lateral areas mentioned above.
  • the ridges and / or undulations are preferably substantially oriented parallel to the optical axis of the module.
  • the striations and / or undulations can be of evolutionary form, especially when the upwardly facing face referenced above is flat. It is understood by evolutionary streak, a streak whose starting profile and the arrival profile are different.
  • the front profile begins at the optically active edge of the cover (which is generally straight), and the back profile is a radius or ripple.
  • corrugation steps of about 0.5 to 1.5 mm and arrows of 0.2 to 1 mm may be provided.
  • the cover can be a mobile cover for making a bi-function or multi-function projector, including a bi-function module code / route or a multifunction module.
  • the optical module according to the invention can emit at least one type of cut-off beam among those described at the beginning of this text.
  • the invention also relates to a motor vehicle headlamp equipped with at least one optical module as described above.
  • the r2 rays reaches the reflecting face of the optical element EP and will be deflected in the form of a radius r2 'upwards, above the screen: by folding so up at least a portion of the rays that would otherwise be intercepted by the screen, the light output of the module is significantly improved.
  • the invention makes it possible to add luminous flux in the central part of the beam: by adding the "corrugated folder" according to FIG. 3b, as an indication, one passes from a total flow of about 712 lumens at a total flux of about 870 lumens, and from a maximum of about 46 lux to a maximum of about 72 lux.
  • the positive effect of the folder is present regardless of the form of the cut (code, motorway ..) and it can adapt whatever the shape of the screen (which can be mono or multi component).
  • the invention can be applied mutadis mutandis to elliptical modules having a cache that is movable: in this case it is necessary to provide a motor for actuating, preferably integrally, the cache and the folder.
  • the folder can also be detached from the cache.

Landscapes

  • Engineering & Computer Science (AREA)
  • General Engineering & Computer Science (AREA)
  • Non-Portable Lighting Devices Or Systems Thereof (AREA)
  • Lighting Device Outwards From Vehicle And Optical Signal (AREA)
EP06291099A 2005-07-21 2006-07-03 Optisches Modul für eine Kfz-Beleuchtungseinrichtung Not-in-force EP1746340B1 (de)

Priority Applications (2)

Application Number Priority Date Filing Date Title
SI200630421T SI1746340T1 (sl) 2005-07-21 2006-07-03 Optični modul za avtomobilsko osvetljevalno napravo
PL06291099T PL1746340T3 (pl) 2005-07-21 2006-07-03 Moduł optyczny dla urządzenia oświetlającego samochodu

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
FR0507785A FR2888916B1 (fr) 2005-07-21 2005-07-21 Module optique pour dispositif d'eclairage automobile

Publications (3)

Publication Number Publication Date
EP1746340A2 true EP1746340A2 (de) 2007-01-24
EP1746340A3 EP1746340A3 (de) 2007-11-07
EP1746340B1 EP1746340B1 (de) 2009-07-29

Family

ID=35998590

Family Applications (1)

Application Number Title Priority Date Filing Date
EP06291099A Not-in-force EP1746340B1 (de) 2005-07-21 2006-07-03 Optisches Modul für eine Kfz-Beleuchtungseinrichtung

Country Status (8)

Country Link
US (1) US7722233B2 (de)
EP (1) EP1746340B1 (de)
AT (1) ATE438065T1 (de)
DE (1) DE602006008074D1 (de)
ES (1) ES2328622T3 (de)
FR (1) FR2888916B1 (de)
PL (1) PL1746340T3 (de)
SI (1) SI1746340T1 (de)

Cited By (10)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP1953039A2 (de) 2007-01-30 2008-08-06 Valeo Vision Multifunktionsbeleuchtungsvorrichtung für Kraftfahrzeug
EP1962015A1 (de) * 2007-02-22 2008-08-27 Valeo Vision Scheinwerfer für Kraftfahrzeug
FR2917485A1 (fr) * 2007-06-18 2008-12-19 Valeo Vision Sa Module optique pour dispositif d'eclairage automobile
FR2917484A1 (fr) * 2007-06-18 2008-12-19 Valeo Vision Sa Module optique pour dispositif d'eclairage automobile
EP2381165A1 (de) * 2010-04-22 2011-10-26 Zizala Lichtsysteme GmbH Scheinwerfer für Fahrzeuge
WO2012013601A1 (fr) * 2010-07-26 2012-02-02 Valeo Vision Module optique de dispositif d'eclairage et/ou de signalisation d'un vehicule automobile
FR2964724A1 (fr) * 2010-09-09 2012-03-16 Valeo Vision Module optique de dispositif d'eclairage et/ou de signalisation d'un vehicule automobile.
WO2012079104A1 (de) * 2010-12-15 2012-06-21 Zizala Lichtsysteme Gmbh Led-lichtmodul
US9347639B2 (en) 2010-07-26 2016-05-24 Valeo Vision Optical module of an illuminating and/or signalling device of a motor vehicle
EP3505816A1 (de) * 2017-12-26 2019-07-03 Johnson Electric International AG Optische umwandlungsvorrichtung

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JP2008258001A (ja) 2007-04-05 2008-10-23 Koito Mfg Co Ltd 車両用前照灯の灯具ユニット
TW200950996A (en) * 2008-06-06 2009-12-16 Tyc Brother Ind Co Ltd Vehicle headlight capable of compensating for light intensity of ark region
AT509829B1 (de) * 2010-04-22 2012-09-15 Zizala Lichtsysteme Gmbh Scheinwerfer für fahrzeuge
DE102011002336A1 (de) * 2011-04-29 2012-10-31 Hella Kgaa Hueck & Co. Projektionsscheinwerfer für Fahrzeuge
DE102012210444B4 (de) * 2012-06-20 2020-06-18 Automotive Lighting Reutlingen Gmbh Fahrzeugleuchte mit mehreren Umlenkkörpern im Reflektor
US20140192521A1 (en) * 2013-01-10 2014-07-10 Ledil Oy Light guide element
CN108027124B (zh) * 2015-05-26 2020-12-18 亮锐控股有限公司 具有多焦点模式的照明设备
DE102015115812A1 (de) * 2015-09-18 2017-03-23 Osram Opto Semiconductors Gmbh Bauelement sowie Verfahren zur Herstellung eines Bauelements
KR102622145B1 (ko) * 2016-12-30 2024-01-08 에스엘 주식회사 차량용 램프
CN109958963B (zh) * 2017-12-26 2022-06-10 艾默林汽车活动组件(无锡)有限公司 一种光型变换装置
CN109958964B (zh) * 2017-12-26 2022-06-10 艾默林汽车活动组件(无锡)有限公司 一种光型变换装置
CN109990240B (zh) * 2017-12-29 2022-07-12 法雷奥照明湖北技术中心有限公司 光学组件、车灯和机动车辆
US10619814B2 (en) 2018-06-28 2020-04-14 Valeo North America, Inc. Configurable lighting system with shared lens and first and second internal optics forming a first and second module configuration for providing two different lighting functions

Citations (4)

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Publication number Priority date Publication date Assignee Title
FR2754039A1 (fr) 1996-10-02 1998-04-03 Valeo Vision Projecteur du genre elliptique pour vehicule automobile, comportant un cache de coupure perfectionne, et procede de fabrication du cache
EP1197387A1 (de) 2000-10-12 2002-04-17 Valeo Vision Kraftfahrzeugscheinwerfer mit verstellbarer Blende
EP1422472A2 (de) 2002-11-21 2004-05-26 Valeo Vision Elliptischer Kfz-Scheinwerfer zur Erzeugung von verschiedenen Lichtbündeln
EP1422471A2 (de) 2002-11-21 2004-05-26 Valeo Vision Elliptischer Kfz-Scheinwerfer zur Erzeugung von verschiedenen Lichtbündeln

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JPH07118208B2 (ja) * 1988-06-28 1995-12-18 株式会社小糸製作所 自動車用前照灯
DE4315401A1 (de) * 1993-05-08 1994-11-10 Bosch Gmbh Robert Scheinwerfer für Fahrzeuge
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JP3798583B2 (ja) * 1999-07-19 2006-07-19 株式会社小糸製作所 車両用前照灯
EP1193440A1 (de) * 2000-10-02 2002-04-03 Stanley Electric Co., Ltd. Kfz-Scheinwerfer
JP3779173B2 (ja) * 2001-04-24 2006-05-24 株式会社小糸製作所 車両用前照灯
FR2839139B1 (fr) * 2002-04-25 2005-01-14 Valeo Vision Module d'eclairage elliptique sans cache realisant un faisceau d'eclairage a coupure et projecteur comportant un tel module
JP4024618B2 (ja) * 2002-08-09 2007-12-19 株式会社小糸製作所 車両用前照灯

Patent Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2754039A1 (fr) 1996-10-02 1998-04-03 Valeo Vision Projecteur du genre elliptique pour vehicule automobile, comportant un cache de coupure perfectionne, et procede de fabrication du cache
EP1197387A1 (de) 2000-10-12 2002-04-17 Valeo Vision Kraftfahrzeugscheinwerfer mit verstellbarer Blende
EP1422472A2 (de) 2002-11-21 2004-05-26 Valeo Vision Elliptischer Kfz-Scheinwerfer zur Erzeugung von verschiedenen Lichtbündeln
EP1422471A2 (de) 2002-11-21 2004-05-26 Valeo Vision Elliptischer Kfz-Scheinwerfer zur Erzeugung von verschiedenen Lichtbündeln

Cited By (22)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP1953039A2 (de) 2007-01-30 2008-08-06 Valeo Vision Multifunktionsbeleuchtungsvorrichtung für Kraftfahrzeug
EP1962015A1 (de) * 2007-02-22 2008-08-27 Valeo Vision Scheinwerfer für Kraftfahrzeug
FR2913094A1 (fr) * 2007-02-22 2008-08-29 Valeo Vision Sa Projecteur pour vehicule automobile.
FR2917485A1 (fr) * 2007-06-18 2008-12-19 Valeo Vision Sa Module optique pour dispositif d'eclairage automobile
FR2917484A1 (fr) * 2007-06-18 2008-12-19 Valeo Vision Sa Module optique pour dispositif d'eclairage automobile
EP2006605A1 (de) 2007-06-18 2008-12-24 Valeo Vision Fahrzeugsscheinwerfer
EP2006604A1 (de) 2007-06-18 2008-12-24 Valeo Vision Optisches Modul für Beleuchtungseinrichtung für Fahrzeuge
EP2381165A1 (de) * 2010-04-22 2011-10-26 Zizala Lichtsysteme GmbH Scheinwerfer für Fahrzeuge
WO2012013601A1 (fr) * 2010-07-26 2012-02-02 Valeo Vision Module optique de dispositif d'eclairage et/ou de signalisation d'un vehicule automobile
CN106885196A (zh) * 2010-07-26 2017-06-23 法雷奥照明公司 机动车辆的照明和/或信号装置的光学模块
CN103119360A (zh) * 2010-07-26 2013-05-22 法雷奥照明公司 机动车辆的照明和/或信号装置的光学模块
CN106885196B (zh) * 2010-07-26 2022-03-04 法雷奥照明公司 机动车辆的照明和/或信号装置的光学模块
US9121561B2 (en) 2010-07-26 2015-09-01 Valeo Vision Optical module of a lighting and/or signaling device for a motor vehicle
US9347639B2 (en) 2010-07-26 2016-05-24 Valeo Vision Optical module of an illuminating and/or signalling device of a motor vehicle
US9885454B2 (en) 2010-07-26 2018-02-06 Valeo Vision Optical module of an illuminating and/or signaling device of a motor vehicle
US9500337B2 (en) 2010-07-26 2016-11-22 Valeo Vision Optical module of a lighting and/or signaling device for a motor vehicle
CN103119360B (zh) * 2010-07-26 2017-02-08 法雷奥照明公司 机动车辆的照明和/或信号装置的光学模块
FR2964724A1 (fr) * 2010-09-09 2012-03-16 Valeo Vision Module optique de dispositif d'eclairage et/ou de signalisation d'un vehicule automobile.
WO2012079104A1 (de) * 2010-12-15 2012-06-21 Zizala Lichtsysteme Gmbh Led-lichtmodul
CN103249992B (zh) * 2010-12-15 2016-10-12 齐扎拉光系统有限责任公司 Led光模块
CN103249992A (zh) * 2010-12-15 2013-08-14 齐扎拉光系统有限责任公司 Led光模块
EP3505816A1 (de) * 2017-12-26 2019-07-03 Johnson Electric International AG Optische umwandlungsvorrichtung

Also Published As

Publication number Publication date
PL1746340T3 (pl) 2009-12-31
ES2328622T3 (es) 2009-11-16
DE602006008074D1 (de) 2009-09-10
FR2888916A1 (fr) 2007-01-26
FR2888916B1 (fr) 2007-09-28
EP1746340A3 (de) 2007-11-07
US20070019430A1 (en) 2007-01-25
US7722233B2 (en) 2010-05-25
ATE438065T1 (de) 2009-08-15
EP1746340B1 (de) 2009-07-29
SI1746340T1 (sl) 2009-12-31

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