EP1605202B1 - Dispositif projecteur multifonctions - Google Patents

Dispositif projecteur multifonctions Download PDF

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Publication number
EP1605202B1
EP1605202B1 EP05291200.3A EP05291200A EP1605202B1 EP 1605202 B1 EP1605202 B1 EP 1605202B1 EP 05291200 A EP05291200 A EP 05291200A EP 1605202 B1 EP1605202 B1 EP 1605202B1
Authority
EP
European Patent Office
Prior art keywords
shield
substantially planar
level
headlight device
zone
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.)
Not-in-force
Application number
EP05291200.3A
Other languages
German (de)
English (en)
French (fr)
Other versions
EP1605202A3 (fr
EP1605202A2 (fr
Inventor
Etienne Pauty
Benoit Reiss
Boris Wiegand
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
Priority claimed from FR0406273A external-priority patent/FR2871552B1/fr
Priority claimed from FR0503009A external-priority patent/FR2883626A1/fr
Application filed by Valeo Vision SAS filed Critical Valeo Vision SAS
Publication of EP1605202A2 publication Critical patent/EP1605202A2/fr
Publication of EP1605202A3 publication Critical patent/EP1605202A3/fr
Application granted granted Critical
Publication of EP1605202B1 publication Critical patent/EP1605202B1/fr
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
    • F21S41/60—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
    • F21S41/695—Screens rotating around a vertical axis

Definitions

  • the present invention relates to a multifunctional projector device, in particular of the elliptical type.
  • a spot of light concentration is generated by a light source disposed in a reflector.
  • the light source is disposed at the first focus of an ellipsoid shaped reflector, said spot forming at the second focus of the reflector.
  • the spot of light concentration is then projected onto the road by a convergent lens, for example a plano-convex lens.
  • the object of the invention is essentially to propose a solution for obtaining, from a relatively simple elliptical-type projector device, different light beams corresponding to different cut-off lines satisfying different standards and / or regulations, in particular without resorting to a multitude of caches.
  • bifunctional projectors which combine the functions of low beam and long range lights: for this purpose, for example, it can have inside the bifunctional projector a removable cover, constituted for example a metal plate, which can be placed on command of a first position in which it does not obscure the light beam produced by the source of the headlamp, the range of the headlamp then corresponding to that of the main beam, to a second position in which it obscures part of the light beam produced by the light source of the headlamp, the range of the headlamp then being limited to that of the headlamps. crossing.
  • a removable cover constituted for example a metal plate
  • the projector must, in the second position, generate a regulatory cut beam corresponding to a code beam, the shape of the cutoff being given by the shape of the cache intercepting part of the light beam.
  • This exemplary embodiment is mainly implemented in elliptical projectors devices.
  • the cut-off line of a code-type beam is symmetrical, with respect to a vertical central axis, of that observed in the countries where traffic flows. done on the left.
  • the plane projection surface is arranged facing the projector device considered, perpendicular to its optical axis.
  • the blackened part of these projections corresponds to an absence of light in this part, the left white part corresponding to a normal illumination by means of the projector device considered.
  • a first cut 101 has thus been represented, corresponding to a beam coded in traffic on the right, a second cut 102 corresponding to a motorway beam in traffic on the right, and a third cut-off 103 corresponding to a city beam or anti-fog. , a fourth cut 104, corresponding to a traffic-coded beam on the left, a fifth cut-off 105, corresponding to a motorway beam in traffic on the left, and a sixth break 106, corresponding to a road beam.
  • a first solution consists of a projector device provided with a movable screen particularly vertical sliding to form on command a particular cut-off beam.
  • a second solution described in the European patent application EP 1 197 387 , consists in the use, in each code-type projector device, of a plate, approximately of square shape, in rotation on itself, the axis of rotation being inclined with respect to a main axis of illumination.
  • Each side of the plate provides a light beam corresponding to a particular cut when the side considered is brought, by rotation of the plate, facing the light source of the projector device considered.
  • Another solution described in the document EP 1 213 532 , according to one of the embodiments described in this document, consists of a projector device provided with a fixed screen and a screen movable about a vertical axis, for modifying the light beam emitted as a function of the curvature of the road on which the vehicle equipped with this device
  • the position changes of the screens or moving plates to go from a first beam having a first cut to a second beam having a second cut are made by annoying transition phases with a disturbing modification of the light distribution below the cutoff line.
  • the first solution requires a particularly complex mechanics and high accuracy.
  • a cache rotating in rotation about a substantially vertical axis, or inclined relative to the vertical.
  • Part of the cache is terminated by an edge called “active” (that is to say the edge that will determine the light / dark limit of the light beam coming out of the projector) whose shape defines the cutoff beam of the projector device in which is the cache.
  • This is usually the upper edge of the cache, "superior” to be understood in view of the cache mounted in the projector in the operating position in the vehicle.
  • certain sectors of the "active" upper part of the cache make their contribution in the realization of several cuts.
  • a clever succession of shapes defining the active edge or top ending cache so that at least a portion of one of these forms is used in the development of at least two beams, having different cuts, preferably corresponding to two consecutive positions of the cache by considering the rotational movement of the cache around the vertical axis.
  • the invention therefore essentially relates to a projector device projecting a light beam along a main illumination axis using at least one light source, the projector device also including a reflector, a frame and a cover, such as the cache is rotatable about an axis of rotation (including a single axis of rotation).
  • the cache has an active edge (upper) composed of a set of distinct portions, at least a portion of one of the portions of the set of portions involved in the production of at least two different cuts of the light beam. broadcast.
  • the axis of rotation of the mobile cache is unique.
  • Projector device comprises a set of components capable of generating a light beam and intended to be integrated into a projector-type lighting device of a motor vehicle.
  • the cache is preferably split so as to have two "active" edges in the (the) portion (s) active (s) in crossing beam position in the vicinity of the optical axis.
  • Another object of the invention is a motor vehicle equipped with such a projector device.
  • the first example shown in different views and, according to the figures, more or less in detail, shows a projector device 2 according to the invention; it comprises a light source 9 producing a light beam, a reflector 4, a part of which makes it possible to ensure a concentration of light in the vicinity of the screen, for example in the form essentially of an ellipsoid.
  • the horizontal longitudinal axis 6 forms a main direction of illumination, or optical axis, of the projector.
  • the projector comprises a lamp holder 8 fixed to the reflector 4 in the rear part thereof, a lens holder 10 fixed at the front of the reflector, and a lens 12 fixed in the front part of the lens holder 10, a focal plane of the lens passing in the vicinity of a second focus of the reflector.
  • the lamp holder 8, the reflector 4, the lens holder 10, and the lens 12 follow each other along the axis 6.
  • the reflector 4 and the lens holder 10 constitute a frame of the projector device 2, which can by elsewhere to include a housing enclosing all the elements that have just been mentioned.
  • the projector device 2 comprises a screen 14, rigidly fixed to the frame.
  • the screen 14 has a curved shape, of substantially cylindrical section with vertical generatrix and center of curvature located towards the front of the projector.
  • the screen 14 extends vertically over a small height and horizontally over approximately the entire width of the reflector 4. It has a horizontal upper end extending, on either side of the axis 6, to 0.5 one hundred below the axis 6, with reference to the focus of the lens 12.
  • the upper end of the screen 14 has a recess 17, visible at the figure 3 , about 1 centimeter deep, and on a portion of the upper end corresponding to an angle of about 30 degrees considering that the upper end describes a form similar to a circular arc.
  • the screen is fixed by two lateral tabs 15 pinched between the edges of the reflector 4 and the lamp holder 8. It avoids any risk of glare of a crossed conductor during the movement of a mobile cover 16 around the screen. a substantially vertical axis of rotation 18. The cover 16 is brought, during its rotation, to pass the recess 17, and to fill in most positions, which will be detailed later, that can adopt the cache 16.
  • the cover 16 comprises, in the example described, a ring 22 forming a base of the cover 16, centered on the axis of rotation 18 and having a central opening 20; a first tab 24 and a second tab 26, fixed to the ring 22, move away from a basic plane defined by the ring, for example at an angle of between 40 and 50 degrees with respect to this basic plane .
  • the two tabs 24 and 26 meet at one end at the ring 22, and at a second end via a support member 28, approximately contained in a plane defined by the two legs 24 and 26. These latter leave an empty space between them.
  • Their spacing is for example between 60 and 70 degrees; in a particular example, it is 66 degrees.
  • the support member 28 is extended by an upper portion 32, curvilinear, and substantially vertical, or having, as shown in FIG. figure 2 , an angle of between 5 and 10 degrees with respect to the axis 18.
  • the upper part is curved to be able to rotate along the screen 14.
  • the upper part 32 is terminated, at its free end, by an edge upper 34, the shape defines the cutoff, and thus the nature of the light beam, obtained by means of the projector device considered.
  • the shape of the upper edge 34 is more particularly detailed at figure 7 .
  • the upper edge 34 consists of a first portion 36, located on the left portion of the upper edge 34, and a second portion 37, located on the right portion of the upper edge 34.
  • the first portion 36 and the second portion 37 do not overlap but directly follow each other on the upper edge 34.
  • the first portion 36 has, starting from the left end of the upper edge 34, successively a first flat zone 38 located at a first level, and a second plane zone 40 located at a second level higher than the first level, a first oblique zone 42 ensuring the transition between the first planar zone 38 and the second planar zone 40.
  • the second portion 37 presents, starting from the right end of the upper edge 34, successively a first plane zone 44 situated at the first level, and, in the extension of the second plane zone 40 of the first portion 36, a second flat zone 46 situated at the second level, a second oblique zone 48 providing the transition between the first planar zone 44 and the second planar zone 46.
  • Each of the portions 36 and 37 describes a curved shape of measurement an angle equal to about 30 degrees considering that the upper edge describes a form similar to an arc. Thus, when one of the portions is rotated about the axis 18, opposite the recess 17, it creates a cut line of its own.
  • the cover 16 is rotated by an actuator, for example a step motor type motor 50 visible to the figure 6 , for example comprising 96 steps.
  • the motor can be arranged inside the projector device, or under the lens holder 10. It is held by means of a fastening system making for example a nut 52. Its operation is managed by a microcontroller, in which particular postions of the cache 16 have been previously memorized, in particular the six positions which have just been described. The positioning of the cover 16 in one of the previously stored positions is controllable by the driver from the dashboard of the vehicle.
  • the Figure 9a-9b corresponds to a second embodiment of cache according to the invention, in front view and in side view.
  • this cover has an active edge profile composed of two plane zones 60, 60 'at an upper level n2, arranged between two plane zones 61, 61' arranged at an intermediate level n1, themselves arranged on either side of a flat area 62 disposed at a lower level n0.
  • two successive planar zones are connected to one another by an oblique zone, as in the first example: the zones 63, 63 'between each zone 60, 60' and 61, 61 'and the zones 64, 64 'between zones 61,61' and zone 62.
  • This cover is particularly advantageous in the "motor way” position, to reduce any risk of dazzling drivers coming in the opposite direction.
  • the figure 9b allows to distinguish another feature of the cache according to the second example: the cache 16 locally not an active edge 34 but two, 34 and 34 ', offset with respect to the optical axis 18 and having an identical profile. It is more particularly the zones 60, 61, 63, 60 ', 61', 63 'which are split, while the zones 64, 64' and 62 are not split.
  • the edge 34 'in the non-split areas has an edge at a sufficiently low level to become optically inactive while ensuring the mechanical continuity of the edge 34'. It can be seen that the active edge 34 is placed after the split edge 34 'relative to the direction of light from the source associated with the reflector. The choice of splitting the cache reduces possible iridescence problems at the cut.
  • the invention thus makes it possible to adapt a cache according to the number and the forms cuts desired, keeping efficiency, compactness and ease to move from one cut to another without visual discomfort neither for the driver, nor for the driver of the car arriving in the opposite direction on a road.

Landscapes

  • Engineering & Computer Science (AREA)
  • General Engineering & Computer Science (AREA)
  • Non-Portable Lighting Devices Or Systems Thereof (AREA)
EP05291200.3A 2004-06-09 2005-06-03 Dispositif projecteur multifonctions Not-in-force EP1605202B1 (fr)

Applications Claiming Priority (4)

Application Number Priority Date Filing Date Title
FR0406273A FR2871552B1 (fr) 2004-06-09 2004-06-09 Dispositif projecteur multifonctions de type elliptique
FR0406273 2004-06-09
FR0503009 2005-03-25
FR0503009A FR2883626A1 (fr) 2005-03-25 2005-03-25 Dispositif projecteur multifonctions pour vehicule comportant un cache mobile

Publications (3)

Publication Number Publication Date
EP1605202A2 EP1605202A2 (fr) 2005-12-14
EP1605202A3 EP1605202A3 (fr) 2008-11-05
EP1605202B1 true EP1605202B1 (fr) 2016-10-05

Family

ID=34980323

Family Applications (1)

Application Number Title Priority Date Filing Date
EP05291200.3A Not-in-force EP1605202B1 (fr) 2004-06-09 2005-06-03 Dispositif projecteur multifonctions

Country Status (3)

Country Link
US (1) US7284888B2 (ja)
EP (1) EP1605202B1 (ja)
JP (1) JP4861643B2 (ja)

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FR2883066B1 (fr) * 2005-03-08 2007-05-11 Valeo Vision Sa Projecteur lumineux a plusieurs fonctions pour vehicule automobile
FR2897415B1 (fr) * 2006-02-14 2008-04-11 Valeo Vision Sa Projecteur d'eclairage pour vehicules automobiles.
JP2007250327A (ja) * 2006-03-15 2007-09-27 Stanley Electric Co Ltd ドラム型可変遮光板及び該遮光板を使用したヘッドライト
US7563008B2 (en) * 2006-03-28 2009-07-21 Visteon Global Technologies, Inc. LED projector headlamps using single or multi-faceted lenses
US20080055755A1 (en) * 2006-08-31 2008-03-06 Searete Llc, A Limited Liability Corporation Of The State Of Delaware Electromagnetic device and method
JP2008135302A (ja) * 2006-11-29 2008-06-12 Stanley Electric Co Ltd プロジェクタ型車両用灯具
JP4754518B2 (ja) * 2007-03-26 2011-08-24 株式会社小糸製作所 車両用前照灯の灯具ユニット
DE102007050207A1 (de) * 2007-10-20 2009-04-23 Hella Kgaa Hueck & Co. Projektionsscheinwerfer für Fahrzeuge
JP5117938B2 (ja) * 2008-06-23 2013-01-16 株式会社小糸製作所 車両用前照灯装置
JP5199781B2 (ja) * 2008-08-11 2013-05-15 株式会社小糸製作所 車両用前照灯装置
FR2940403B1 (fr) * 2008-12-19 2014-01-17 Valeo Vision Sas Dispositif d'eclairage pour projecteur de vehicule assurant plusieurs fonctions d'eclairage ou une fonction variable avec une seule source lumineuse
US20100246185A1 (en) * 2009-03-31 2010-09-30 Robe Lighting S.R.O. Light collection system for a luminaire
DE102009054227A1 (de) * 2009-11-21 2011-05-26 Volkswagen Ag Verfahren zum Steuern einer Scheinwerferanordnung für ein Fahrzeug und Scheinwerferanordnung
JP5539784B2 (ja) * 2010-05-06 2014-07-02 株式会社小糸製作所 車両用灯具システム、制御装置、および車両用灯具
US20130094215A1 (en) * 2011-04-04 2013-04-18 Robe Lighting S.R.O. Light collection system for a luminaire
DE102012013730A1 (de) * 2012-07-11 2014-01-16 GM Global Technology Operations LLC (n. d. Gesetzen des Staates Delaware) Scheinwerfersystem für ein Kraftfahrzeug
KR102289760B1 (ko) * 2014-12-01 2021-08-13 에스엘 주식회사 차량용 램프
KR102326051B1 (ko) * 2014-12-04 2021-11-15 현대모비스 주식회사 자동차의 조명장치
KR102384547B1 (ko) * 2015-05-19 2022-04-11 에스엘 주식회사 차량용 램프
DE102015015360A1 (de) * 2015-11-27 2017-06-01 GM Global Technology Operations LLC (n. d. Ges. d. Staates Delaware) Scheinwerfer für ein Kraftfahrzeug
JP6812120B2 (ja) * 2016-03-25 2021-01-13 株式会社小糸製作所 車両用灯具、および当該車両用灯具を備えた車両
DE102016108061A1 (de) 2016-04-29 2017-11-02 Automotive Lighting Reutlingen Gmbh Lichtmodul für einen Kraftfahrzeugscheinwerfer

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FR2754039B1 (fr) * 1996-10-02 1998-12-18 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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JP2002289013A (ja) * 2000-12-05 2002-10-04 Stanley Electric Co Ltd 車両用灯具
JP2003092012A (ja) * 2001-09-14 2003-03-28 Ichikoh Ind Ltd ヘッドランプ
FR2831497B1 (fr) * 2001-10-30 2004-07-09 Valeo Vision Dispositif d'eclairage de type elliptique pour vehicule automobile
FR2866413B1 (fr) * 2004-02-13 2006-06-30 Valeo Vision Projecteur elliptique equipe d'un ecran d'occultation en matiere transparente.

Also Published As

Publication number Publication date
JP4861643B2 (ja) 2012-01-25
JP2005353596A (ja) 2005-12-22
EP1605202A3 (fr) 2008-11-05
US7284888B2 (en) 2007-10-23
EP1605202A2 (fr) 2005-12-14
US20050276062A1 (en) 2005-12-15

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