EP3045807A1 - Optische vorrichtung für kraftfahrzeug - Google Patents

Optische vorrichtung für kraftfahrzeug Download PDF

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Publication number
EP3045807A1
EP3045807A1 EP16156640.1A EP16156640A EP3045807A1 EP 3045807 A1 EP3045807 A1 EP 3045807A1 EP 16156640 A EP16156640 A EP 16156640A EP 3045807 A1 EP3045807 A1 EP 3045807A1
Authority
EP
European Patent Office
Prior art keywords
lighting
covers
assembly
rotation
axis
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.)
Withdrawn
Application number
EP16156640.1A
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English (en)
French (fr)
Inventor
Martin Grimm
Stéphane Thery
Jonathan Blandin
Alice Mulin
Jean Masse
David Bourdin
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
Family has litigation
First worldwide family litigation filed litigation Critical https://patents.darts-ip.com/?family=41328890&utm_source=google_patent&utm_medium=platform_link&utm_campaign=public_patent_search&patent=EP3045807(A1) "Global patent litigation dataset” by Darts-ip is licensed under a Creative Commons Attribution 4.0 International License.
Application filed by Valeo Vision SAS filed Critical Valeo Vision SAS
Publication of EP3045807A1 publication Critical patent/EP3045807A1/de
Withdrawn legal-status Critical Current

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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
    • F21S41/60—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
    • F21S41/698—Shaft-shaped screens rotating along its longitudinal axis

Definitions

  • the invention relates in particular to an optical device for a motor vehicle.
  • an elliptical-type optical module 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.
  • This module can be equipped with a fixed or movable cover capable of intercepting 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.
  • patent FR2754039 which describes modules able to emit crossover or fog beams for example.
  • the invention aims in particular to provide a new optical device using cuts, like what is described above.
  • the present invention makes it possible in particular to have a progressivity in the change of the type of lighting while having, from a mechanical point of view of the device, a discontinuity, namely the edges of the covers to produce the cuts are distinct and remote. one of the other.
  • the invention makes it possible to have an optical continuity between the beams of the first and second lighting positions.
  • the caches have a mechanical discontinuity, namely these caches are in particular separated from one another by a recessed area, while allowing to generate, during the transition, a continuous and progressive beam, at a time intensity, range and / or vertical displacement of the cut.
  • the rotary assembly according to the invention is in particular different from a drum without significant asperities.
  • the cut-off perceived in the beam progressively rises to the second lighting position, corresponding for example to a beam of increased range such that a motorway beam, allowing for a gradual increase in the illumination of the ground and the range.
  • the transition between the two beams according to the invention can be done more slowly, which improves the comfort of the driver.
  • a slow transition is understood to mean a transition between the code and the road that takes place between 0.8 seconds and 3 seconds, whereas a fast transition between the code and the route takes place between 50 milliseconds and 300 milliseconds, for example.
  • the time factor between a slow transition and a fast transition can thus for example be 2 or 3 or 10 or more.
  • the first constraint is related to the lighthouse call function to quickly communicate with another user.
  • the second constraint is cost-related, since a simple way to activate a cache is to use an electromagnet or a DC motor.
  • the set of caches can fulfill several functions, for example three to four functions or more, and it is advantage of using a stepper motor to finely position each cut.
  • This type of engine also has the advantage of having an adaptable piloting speed, which allows switching from one lighting position to another at different speeds, and thus position a cutoff quickly or more slowly as needed.
  • the rotary set of covers may stop on at least one, preferably three, intermediate positions between the code beam and the motorway beam.
  • the rotary set of covers can stop on at least one, preferably two, intermediate positions between the motorway beam and the road beam.
  • the angular difference between the two consecutive covers is chosen so as to substantially avoid uppering and lowering phenomena.
  • a 'uppering' phenomenon can occur when one of the caches goes too low in relation to the optical axis during the transition.
  • a phenomenon of ⁇ lowering 'can appear when one of the caches mechanically cuts the optical axis excessively during the transition.
  • the invention makes it possible for example to avoid a jump in the illumination of the beam when passing from the first lighting position to the second.
  • the luminous intensity of the beam measured at a point on the optical axis, varies monotonically, namely increasing decreasing, between the first and second outstanding lighting positions.
  • the device comprises a lens disposed in the path of the light beam that has been intercepted by the rotating assembly.
  • the axis of rotation of the rotating assembly may, if appropriate, be on the focal plane of the lens.
  • the first remarkable lighting position can generate a code beam.
  • the second position of remarkable lighting can generate a beam with increased range, for example a motorway beam.
  • the rotary assembly is arranged to take only two remarkable lighting positions.
  • the rotary assembly is arranged to be able to take at least three outstanding lighting positions selected for example from: a coded beam, a beam with increased range, a road beam, a selective beam, a flat cut beam.
  • These lighting positions can, if desired, be adapted, from a regulatory point of view, for traffic on the right or left in Europe, or for traffic in the United States.
  • the invention may allow a switch to increased range beam mode without activating a correction actuator (English leveler ).
  • the variation of the position of the cut can be done only with the optical cache.
  • the rotating assembly is arranged to be able to take exactly three, four or five outstanding lighting positions.
  • the angular difference between the first and second covers is for example between 10 ° and 60 °, in particular between 20 ° and 50 °, being for example close to 20 ° or 30 °.
  • the first and second caches may each have one or more edges.
  • these caches may each have two edges.
  • one of the caches has a single edge and the other cache has two edges. These edges serve to form a cut in the beam.
  • the cover has two edges, at least one of these edges is preferably optically active during the progressive transition.
  • These ridges may be each formed on a rib of the rotating assembly, in particular on a vertex of this rib.
  • At least one of the edges of the caches may for example be formed as an edge of a dihedron.
  • the edge may be a sharp line or be formed by a substantially rounded edge.
  • both caches may have a common edge.
  • the rotary assembly is arranged so that, during the rotation of the first lighting position towards the second, first the first cache is optically active, then the second cache, so as to ensure the gradual transition of lighting.
  • the first cover has two ridges and the second cover also has two edges and, when the first lighting position is rotated towards the second, first (first position). remarkable lighting) the two edges of the first cache are optically active, then (progressive transition) the second edge of the first cache and the first edge of the second cache, these edges being adjacent, and finally (second position of remarkable lighting) both edges of the second cover and if necessary the folder are optically active.
  • the rotating assembly comprises at least one folder arranged to enhance the light intensity of a beam in at least one of the outstanding lighting positions, in particular to produce a beam with increased range.
  • the second cache may comprise the folder and at least one edge formed for example by an edge of this folder.
  • the folder comprises a reflective surface, this surface being in particular substantially planar or, alternatively, having a shape making it possible to obtain a substantially oblique cutoff.
  • the folder may be arranged to participate in the formation of a beam with increased range, this increased range being in particular greater than the range of a beam code.
  • the folder is arranged to be optically active, at least momentarily, during the progressive transition to maintain or increase the light intensity of the beam in the optical axis during this gradual transition.
  • the rotary assembly is arranged to avoid a phenomenon of 'lowering' mentioned above, during the gradual transition.
  • the second cache corresponding for example to a beam of increased range, may have a maximum height, measured from the axis of rotation, less than the maximum height of the first cache.
  • the axis of rotation of the rotating assembly can be on a focal plane of the device.
  • the axis of rotation is shifted by a non-zero distance (for example from 1 mm to a few mm) relative to the focal plane.
  • the vertices of the first and second caches possibly remain substantially under the optical axis or are substantially tangent to this axis, during the progressive transition.
  • the rotating assembly may, if desired, have three covers, including for example one to make a selective beam.
  • the device according to the invention may, if desired, be arranged to allow a gradual transition between the flat-cut beam and the selective L-beam.
  • progressive transition is intended to mean in particular a transition between two remarkable beams which is accompanied by a progressive movement of a cut line, thus excluding for example a visible jump by the driver of the cut line between the two beams.
  • the device may comprise a motor, in particular of the step type, arranged to drive the rotating assembly in rotation.
  • the rotary hinged assembly is rotated by a rotary actuating element, for example this cached assembly is secured to a wheel, in particular of the toothed type cooperating with an engine, in particular a pinion of the latter.
  • ADB Adaptive Driving Beam
  • the device according to the invention (in particular its cacheset) is arranged to produce in a lighting beam a dark zone positioned substantially on a vehicle tracked or cruising, so as not to dazzle the driver, this dark area may be movable if necessary to follow the movement of the vehicle followed or crossing.
  • the vehicle can be equipped with a camera placed at the front and which detects the presence of a third vehicle, for example circulating in the opposite direction on the opposite (left) lane as well as its position (vertical and horizontal).
  • a camera placed at the front and which detects the presence of a third vehicle, for example circulating in the opposite direction on the opposite (left) lane as well as its position (vertical and horizontal).
  • the angular orientation of at least one of the beams of the projector is advantageously controlled by a device DBL ( Dynamic Bending Light in English) in particular coupled to this camera.
  • DBL Dynamic Bending Light in English
  • the projector can for example be pivotable through a dedicated engine, advantageously separate from the engine that allows to operate the cache assembly.
  • the light source 3 is of any suitable type, for example of the filament or arc type. It may be a halogen lamp, a xenon lamp, or one or more light-emitting diodes.
  • the light rays emitted by the light source 3 are sent towards the lens 6 or directly, or after reflection on the reflector 2.
  • the rays then form a light beam.
  • the device 1 comprises a rotary assembly 10 arranged to intercept said light beam and can be rotated about an axis of rotation z between first and second remarkable lighting positions, this axis of rotation being substantially perpendicular to the light. optical axis yy.
  • This assembly 10 comprises this assembly comprising first and second covers 8 and 9 respectively associated with the first and second lighting positions to create a cut-off of the light beam, these caches being in particular distant from one another by an angular gap predetermined (A), this assembly being further arranged to allow a gradual transition of illumination between the first and second lighting positions.
  • the first remarkable lighting position makes it possible to generate a code beam and the second remarkable lighting position (see figure 4 ) is used to generate a beam with increased range.
  • the rotating assembly 10 comprises a folder 15 arranged to enhance the light intensity to form the beam with increased range.
  • the first cover 8 has two ridges 11 and 11a formed, in the example described, each on a rib extending substantially along the axis z.
  • edges 11 and 11a have a height varying in the direction of the z-axis with an inclined portion 14 at the middle of the edge.
  • the second cover 9 comprises the folder 15 and two edges 12 and 12a corresponding to two substantially rectilinear edges and parallel to the z axis of the folder 15.
  • the folder 15 has a reflective surface, this surface preferably being substantially flat or, alternatively, having a shape making it possible to obtain a substantially oblique cut.
  • the rotary assembly 10 also comprises an L-shaped cover 16 to form a selective beam, left or right.
  • the beam produced by the device 1 according to the invention progressively passes ( Figures 20 to 22 ) of the beam code ( figure 19 ) to the augmented range beam ( figure 23 ). It can be seen that the range of the beam increases progressively during this phase of progressive transition.
  • the figure 24 illustrates lines of the same level of illumination on the ground for the road beam.
  • the figure 25 illustrates, for the device 1, the evolution of the maximum illumination measured on a screen at 25 m in Lux (curve C1) and that of the relative position of the cut on a screen at 25 m (curve C2) as a function of the angle of rotation of the rotating assembly 10.
  • the device 1 has a focal plane PF substantially perpendicular to the optical axis, and the axis of rotation z of the rotary assembly 10 is arranged at a non-zero distance from the plane PF so that, during the rotation of the first lighting position towards the second, the first and second covers 8 and 9 remain substantially below the optical axis, without cutting the optical axis yy or being tangent to this axis, to allow the gradual transition. In other words, these covers 8 and 9 never go higher than the optical axis yy.
  • the second cover 9, corresponding to the increased range beam may have a maximum height, measured from the axis of rotation, less than the maximum height of the first cache.
  • the axis of rotation z of the rotating assembly 10 may be on the focal plane PF of the device, while avoiding the phenomenon of 'lowering'.
  • rotary assembly 10 may be devoid of folder 15.
  • the order of the caches can be different.
  • the assembly 10 can be arranged to be immobilized, on command of an electric motor, in an intermediate position between the outstanding lighting positions.
  • the rotation of the assembly 10 is substantially continuous, on command of a motor, between the outstanding lighting positions.
  • the motor may for example be a DC motor, a stepper motor or a piezoelectric motor.
  • the stepper motor may be advantageous for fine adjustment of the position of the rotating assembly between two remarkable positions.
  • the progressive transition can also be provided between for example a flat-cut beam and a selective beam.
  • the invention can be applied for both right and left traffic, or both.
  • FIGS. 26A to 26H illustrate the progressivity between the different lighting positions according to the invention (on a screen at 25m).
  • Figures 26A to 26 E passage of the beam code LB to the highway beam MB by three intermediate code beams LB progression 1, 2 and 3.
  • Figures 26F to 26H crossing of the MB motorway beam to the HB road beam by two intermediate road beams HB progression 1 and 2.
  • progressivity can be provided for only one of the transitions.

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  • Engineering & Computer Science (AREA)
  • General Engineering & Computer Science (AREA)
  • Non-Portable Lighting Devices Or Systems Thereof (AREA)
EP16156640.1A 2009-04-24 2010-04-08 Optische vorrichtung für kraftfahrzeug Withdrawn EP3045807A1 (de)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
FR0952684A FR2944857B1 (fr) 2009-04-24 2009-04-24 Dispositif optique pour vehicule automobile.
EP10159333.3A EP2244007B1 (de) 2009-04-24 2010-04-08 Optische Vorrichtung für ein Kraftfahrzeug

Related Parent Applications (2)

Application Number Title Priority Date Filing Date
EP10159333.3A Division-Into EP2244007B1 (de) 2009-04-24 2010-04-08 Optische Vorrichtung für ein Kraftfahrzeug
EP10159333.3A Division EP2244007B1 (de) 2009-04-24 2010-04-08 Optische Vorrichtung für ein Kraftfahrzeug

Publications (1)

Publication Number Publication Date
EP3045807A1 true EP3045807A1 (de) 2016-07-20

Family

ID=41328890

Family Applications (2)

Application Number Title Priority Date Filing Date
EP16156640.1A Withdrawn EP3045807A1 (de) 2009-04-24 2010-04-08 Optische vorrichtung für kraftfahrzeug
EP10159333.3A Active EP2244007B1 (de) 2009-04-24 2010-04-08 Optische Vorrichtung für ein Kraftfahrzeug

Family Applications After (1)

Application Number Title Priority Date Filing Date
EP10159333.3A Active EP2244007B1 (de) 2009-04-24 2010-04-08 Optische Vorrichtung für ein Kraftfahrzeug

Country Status (7)

Country Link
US (1) US8459849B2 (de)
EP (2) EP3045807A1 (de)
JP (1) JP5717981B2 (de)
CN (1) CN101871611B (de)
DE (5) DE202010018337U1 (de)
ES (1) ES2625948T3 (de)
FR (1) FR2944857B1 (de)

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CZ307225B6 (cs) * 2009-07-28 2018-04-11 Varroc Lighting Systems, s.r.o. Projektor světlometu motorového vozidla
JP5610949B2 (ja) * 2010-09-22 2014-10-22 株式会社小糸製作所 車両用前照灯
KR101195110B1 (ko) * 2010-11-11 2012-10-29 지엠 글로벌 테크놀러지 오퍼레이션스 엘엘씨 헤드램프 조립체 및 이의 제어방법
AT510930B1 (de) * 2010-12-15 2013-05-15 Zizala Lichtsysteme Gmbh Led-lichtmodul
CN102200245A (zh) * 2011-04-22 2011-09-28 梁威 远、近光二合一的led车用前大灯
DE102011002337A1 (de) * 2011-04-29 2012-10-31 Hella Kgaa Hueck & Co. Projektionsscheinwerfer für Fahrzeuge
FR2975752B1 (fr) * 2011-05-25 2018-11-16 Aml Systems Barrette de coupure pour faisceau d'une source lumineuse
FR2977927B1 (fr) 2011-07-13 2013-08-23 Valeo Vision Dispositif d'eclairage/signalisation multifonctions pour vehicule automobile.
FR2978105B1 (fr) * 2011-07-21 2014-02-07 Valeo Vision Procede de controle d'un organe fonctionnel de vehicule
KR101249003B1 (ko) 2011-11-25 2013-04-01 에스엘 주식회사 헤드 램프 제어 장치 및 방법
CN102367940B (zh) * 2011-12-07 2013-09-04 江苏洪昌科技股份有限公司 组合折反式的汽车led前照灯远光光学系统
KR101354384B1 (ko) * 2011-12-28 2014-01-23 주식회사 에스엘라이팅 차량용 헤드램프 구조
CN102642499A (zh) * 2012-05-03 2012-08-22 丹阳众诚汽车部件科技有限公司 汽车前照灯智能转向afs控制系统
WO2014091919A1 (ja) * 2012-12-13 2014-06-19 株式会社小糸製作所 車両用灯具ユニット
FR3032159A1 (fr) * 2015-01-30 2016-08-05 Valeo Vision Dispositif optique pour phare d'automobile
JP6510330B2 (ja) * 2015-06-10 2019-05-08 株式会社小糸製作所 車両用照明装置
KR101786291B1 (ko) * 2016-01-08 2017-10-17 현대자동차주식회사 헤드램프의 쉴드 구동장치
FR3050797B1 (fr) * 2016-04-28 2019-11-29 Valeo Vision Module lumineux rotatif
AT518557B1 (de) * 2016-04-29 2018-04-15 Zkw Group Gmbh Beleuchtungseinheit für einen Kraftfahrzeugscheinwerfer zum Erzeugen eines Lichtbündels mit Hell-Dunkel-Grenze
FR3075926B1 (fr) * 2017-12-21 2021-04-02 Valeo Vision Dispositif d’eclairage de vehicule automobile
TWI651489B (zh) * 2018-01-29 2019-02-21 誠益光電科技股份有限公司 智慧頭燈

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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
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EP1422471A2 (de) 2002-11-21 2004-05-26 Valeo Vision Elliptischer Kfz-Scheinwerfer zur Erzeugung von verschiedenen Lichtbündeln
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Publication number Priority date Publication date Assignee Title
US5373424A (en) * 1992-10-21 1994-12-13 Koito Manufacturing Co., Ltd. Automotive projection headlamp
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
EP1442472A2 (de) 2001-11-05 2004-08-04 Shimadzu Research Laboratory (Europe) Ltd. Quadrupolionenfalle, verfahren zur verwendung derselben und ein eine solche ionenfalle enthaltender massenspekrometer
EP1422471A2 (de) 2002-11-21 2004-05-26 Valeo Vision Elliptischer Kfz-Scheinwerfer zur Erzeugung von verschiedenen Lichtbündeln
US20050201117A1 (en) * 2004-03-12 2005-09-15 Atsushi Sugimoto Projector type vehicle headlamp
US7201505B2 (en) 2004-03-12 2007-04-10 Koito Manufacturing Co., Ltd. Projector type vehicle headlamp
EP1806531A1 (de) * 2006-01-05 2007-07-11 Valeo Vision Multifunktionales, elliptisches Scheinwerfergerät mit zusätzlichem, optischem Element
US20070217194A1 (en) 2006-03-17 2007-09-20 Sl Corporation Rotary lamp shield driving device for providing a plurality of beam radiation patterns, and lamp assembly using the same
EP2006605A1 (de) 2007-06-18 2008-12-24 Valeo Vision Fahrzeugsscheinwerfer
WO2009039882A1 (de) * 2007-09-24 2009-04-02 Hella Kgaa Hueck & Co. Projektionsscheinwerferanordnung für fahrzeuge
US20090116259A1 (en) * 2007-11-02 2009-05-07 Koito Manufacturing Co., Ltd. Vehicular lamp system

Also Published As

Publication number Publication date
DE202010018336U1 (de) 2015-09-14
EP2244007A1 (de) 2010-10-27
FR2944857B1 (fr) 2017-02-03
DE202010018335U1 (de) 2015-09-14
DE10159333T1 (de) 2016-10-13
DE202010018337U1 (de) 2015-09-14
EP2244007B1 (de) 2017-03-15
DE202010018458U1 (de) 2016-10-26
JP5717981B2 (ja) 2015-05-13
CN101871611A (zh) 2010-10-27
FR2944857A1 (fr) 2010-10-29
US8459849B2 (en) 2013-06-11
ES2625948T3 (es) 2017-07-21
JP2010257980A (ja) 2010-11-11
CN101871611B (zh) 2014-12-10
US20110002136A1 (en) 2011-01-06

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