EP1806531A1 - Multifunktionales, elliptisches Scheinwerfergerät mit zusätzlichem, optischem Element - Google Patents

Multifunktionales, elliptisches Scheinwerfergerät mit zusätzlichem, optischem Element Download PDF

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Publication number
EP1806531A1
EP1806531A1 EP06292012A EP06292012A EP1806531A1 EP 1806531 A1 EP1806531 A1 EP 1806531A1 EP 06292012 A EP06292012 A EP 06292012A EP 06292012 A EP06292012 A EP 06292012A EP 1806531 A1 EP1806531 A1 EP 1806531A1
Authority
EP
European Patent Office
Prior art keywords
projector device
cover
cache
rotation
multifunctional
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
EP06292012A
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English (en)
French (fr)
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EP1806531B1 (de
Inventor
Jean-Luc Meyrenaud
Guillaume Tronquet
Benoît Reiss
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
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Valeo Vision SAS
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Publication date
Application filed by Valeo Vision SAS filed Critical Valeo Vision SAS
Publication of EP1806531A1 publication Critical patent/EP1806531A1/de
Application granted granted Critical
Publication of EP1806531B1 publication Critical patent/EP1806531B1/de
Not-in-force legal-status Critical Current
Anticipated expiration legal-status Critical

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    • 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
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F21—LIGHTING
    • F21W—INDEXING SCHEME ASSOCIATED WITH SUBCLASSES F21K, F21L, F21S and F21V, RELATING TO USES OR APPLICATIONS OF LIGHTING DEVICES OR SYSTEMS
    • F21W2102/00—Exterior vehicle lighting devices for illuminating purposes
    • F21W2102/10—Arrangement or contour of the emitted light
    • F21W2102/13—Arrangement or contour of the emitted light for high-beam region or low-beam region
    • F21W2102/135—Arrangement or contour of the emitted light for high-beam region or low-beam region the light having cut-off lines, i.e. clear borderlines between emitted regions and dark regions
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F21—LIGHTING
    • F21W—INDEXING SCHEME ASSOCIATED WITH SUBCLASSES F21K, F21L, F21S and F21V, RELATING TO USES OR APPLICATIONS OF LIGHTING DEVICES OR SYSTEMS
    • F21W2107/00—Use or application of lighting devices on or in particular types of vehicles
    • F21W2107/10—Use or application of lighting devices on or in particular types of vehicles for land vehicles

Definitions

  • the present invention relates to a multifunctional elliptical projector device for switching between several positions each performing a specific lighting function, for example a code function, a road function, and a highway function or a bad weather function.
  • Each lighting function is associated in particular with a cut line that is specific to it, or the absence of a cut line, said cut line being obtained by means of a cache intercepting part of the light rays emitted by a source luminous device of the projector considered.
  • the object of the invention is essentially to propose a solution for obtaining, thanks to the presence of at least one additional optical element, at least one of the lighting functions available by means of the multifunctional projector device considered, with optical performances improved by compared to the performances presented so far by the existing multi-function projectors.
  • additional optical element designates an element, integrated in a mask, having at least one reflecting surface capable of redirecting an optically active edge of a flap of said mask over an optically active edge. part of the light rays emitted towards said flap by the light source of the projector device considered.
  • additional optical element can also be designated by the term "folding".
  • the invention will be more particularly described, by way of example only, in the case where the multifunctional projector device considered makes it possible particularly to obtain the motorway function or the bad weather function by means of a cache comprising an element additional optics.
  • the multifunctional projector device considered makes it possible particularly to obtain the motorway function or the bad weather function by means of a cache comprising an element additional optics.
  • a first solution consists in the use, in each code-type projector device, of a plate, approximately disk-shaped, in rotation on itself, the axis of rotation being horizontal and parallel to the optical axis of the device. projector device.
  • optical axis of the projector device refers generally to the maximum illumination direction for the projector device considered.
  • the periphery of the disc is not perfectly smooth; it has a set of irregularities, each of the irregularities making it possible to obtain a light beam corresponding to one of the desired functions when the irregularity considered is brought, by rotation of the disk, facing the light source of the projector device considered.
  • the second solution consists in the use, in the elliptical-type projector device 100, of a multifunction mask 103 - or multifunction mask - consisting essentially of a support rotating about itself about an axis of rotation 104; the rotational movement is controlled by an actuator 105 which may comprise a DC motor, a solenoid, a stepper motor or any other known actuation system or combination thereof.
  • the axis of rotation 104 is horizontal and perpendicular to the optical axis of the projector device, said support maintaining a plurality of caches each having a determined cut to generate a specific cut line.
  • the lateral surface of the multifunction cover constituted by the ends of the covers held by the rotating support, is not perfectly smooth; it has a set of cutouts, each of the cutouts for obtaining a light beam corresponding to one of the desired functions when the cut concerned is brought, by rotation of the multifunction cover, facing the light source of the projector device considered.
  • the road function is obtained when no cache comes to intercept the light rays emitted by the light source.
  • the rotational support maintains a first cache, dedicated to the production of a code-type light beam, and a second cache, dedicated to the production of a light beam of the motorway or bad weather.
  • An object of the invention is to respond in particular to this problem concerning the photometric performance of certain lighting functions.
  • a solution for producing a multifunctional projector device ie at least bifunctional, which produces at least one light beam whose photometric performance is improved compared to those measured in the projectors devices of the state of the art performing the same functions.
  • a multifunctional projector device of the type of those having a multifunctional cover consisting essentially of a support in rotation on itself, with a horizontal axis of rotation and perpendicular to the optical axis of the projector device, said support holding a plurality of caches each having a determined cut to generate a specific cut line.
  • FIG. 2-A shows the multifunctional concealer 204 in a position, designated in this example as initial position, allowing the realization of the code-type beam.
  • Figure 2-B shows the multifunctional concealer in a position, designated in this example as the first position, allowing the construction of the motorway type beam or bad weather.
  • Another object of the invention is a motor vehicle equipped with a projector device comprising the main characteristics previously specified and possibly one or more secondary characteristics which have just been mentioned.
  • FIGS. 2-A to 2-D The elements appearing in different figures retain, unless otherwise specified, the same references.
  • the invention will be more particularly illustrated in the context of a trifunctional projector device, of the type shown in FIGS. 2-A to 2-D, which makes it possible to obtain a road-type beam, a code-type beam, and a motorway type beam or bad weather type, but having certain improved photometric performance.
  • the invention is however generalizable without difficulty to any multifunctional projector device whose multifunction occulteur is rotated along a horizontal axis and perpendicular to the optical axis of the device considered, and at least one component is completed by an additional optical element.
  • FIG 3 shows a projector device 300, of the type of the projector device 200 shown in Figures 2-A to 2-D, having the same main elements as the projector device 200, but wherein the invention is implemented; the multifunctional concealer 204 has been replaced by a multifunctional concealer 204 ', the main difference between these two concealers residing in the fact that the first cover 207 is now articulated with respect to the support element 205.
  • the multifunctional occluder 204 is brought into a new position, here designated as the second position, in which the light beam produced corresponds to a road-type beam, no cache no longer intercepting the light rays 210.
  • the first mask 207 adopts a new posture P2, designated here as a second posture with respect to a first posture P1 in which it was in particular when the multifunctional occluder 204 was in the first position shown in FIG. Figure 2-B.
  • the posture P2 differs from the posture P1 in particular by the fact that the first cover is folded towards the first axis of rotation 211, so as to limit its bulk due to the presence of the folder 209.
  • the folding operation is carried out, as will be detailed later, while the multifunction occulteur 204 'is brought from the first position to the second position.
  • the transition from the first posture P1 to the second posture P2 is performed during other transition movements of the occluder 204 ', the posture P2 must always be reached at least when the road-type beam must be realized.
  • FIG 4-A shows a first example 400 of the cache 207 in the first position shown in Figure 2-B.
  • the cover 400 consists of a shutter 401, generally vertical, which, when placed in its optically active position, conceals a part of the light beam coming from the reflector, and an additional optical element 402, generally horizontal, of which at least the upper face 403 is reflective in order to add in the beam passing through the lens a portion of the rays which, without the presence of this reflecting surface, would have been intercepted by the shutter, and thus lost.
  • the flap 401 and the folder 402 are joined: an upper edge 404 of the flap 401 corresponds to a front edge 405 of the folder 402, no light ray can thus filter between these two elements. Any undesirable light leakage that may cause dazzling is thus prevented.
  • Figure 4-B shows in more detail the profile 406 of the leading edge 405, which predominantly determines the shape of the generated light beam.
  • the surface of the folder 402 is then a horizontal extrusion of the shape of the leading edge 405 from said front edge 405 'to the light source.
  • Profile 406 consists of the joining of a lower horizontal segment 407 and an upper horizontal segment 408, connected by an oblique segment 409, generally central.
  • the height of the segment 407 is determined to avoid glare of the doubled conductors through their exterior mirror, whose approximate position 410 is symbolized by a crossed circle.
  • the difference in level between segment 407 and segment 408 is of the order of 0.48 millimeters.
  • FIG. 5-A shows a second example 400 'of the cover 207 in the first position shown in Figure 2-B.
  • the cover 400 ' consists of a shutter 401', generally vertical, which, when placed in its optically active position, conceals a part of the light beam coming from the reflector, and an additional optical element 402 ', globally horizontal, at least the upper face 403 'is reflective in order to add in the beam passing through the lens part of the rays which, without the presence of this reflecting surface, would have been intercepted by the cache, and thus lost.
  • the flap 401 'and the folder 402' are joined: an upper edge 404 'of the flap 401' corresponds to a front edge 405 'of the folder 402', no light ray can thus filter between these two elements. Any undesirable light leakage that may cause dazzling is thus prevented.
  • FIG. 5-B shows in more detail the profile 406 'of the front edge 405', which determines predominantly the shape of the generated light beam.
  • the surface of the folder 402 ' is then a horizontal extrusion of the shape of the leading edge 405' from said front edge 405 'to the light source.
  • the profile 406 ' is an optimized form comprising a recess 411' around the maximum intensity to increase the range of the light beam of highway fire type or bad weather; the recess 411 'is restricted in width to avoid any glare of the doubled conductors through their external rearview mirror, whose approximate position 410' is symbolized by a crossed circle.
  • the profile 406 'thus consists of the union of an intermediate horizontal segment 407', a lower horizontal segment 408 '- interconnected by means of a first oblique segment 412 forming a 45 degree angle with the lower segment 408 '- and an upper horizontal segment 409' connected to the lower horizontal segment 408 'by a second oblique segment 413' forming an angle of 40 degrees with the lower segment 408 '.
  • the difference in level between the upper segment 409 'and the lower segment 408' is of the order of 0.8 millimeters, and the difference in level between the intermediate segment 407 'and the lower segment 408' is of the order of 0.33 millimeters.
  • the lower segment 408 ' is about 1.05 millimeters.
  • Figures 6-A and 6-B respectively show a first view and a second view of the example 400 'of the cover 207 in its final embodiment 600 designed to be held on the support 205 of the multifunctional concealer 204'.
  • a first fixing pin 601 and a second fixing pin 602 are arranged on either side of the cover 400 '.
  • a vertical rear edge 605 of the folder 402 ' is advantageously reflective, thermal problems being thus solved.
  • Figures 7-A, 7-B, 7-C and 7-D show the multifunctional concealer 204 ' complete, that is to say ready to be mounted in the final projector device, in a first situation corresponding to a first step of the operation of folding the first cache 207.
  • FIGS. 8-A, 8-B, 8-C and 8-D show the multifunctional occulteur 204 'complete in a second situation corresponding to a second step of the operation of folding the first mask 207.
  • FIGS. 9-A, 9-B, 9-C and 9-D show the complete multifunctional occulteur 204 'in a third situation corresponding to a third step of the operation of folding the first mask 207.
  • the multifunctional concealer cooperates with a guide element 705, or guide, secured to a housing 706, for example the housing of the actuator, itself integral with the reflector or the lens.
  • the multifunctional occulting device 204 continuously rotates about the first axis 211 beyond the position corresponding to the production of the motorway beam or bad weather; the guide lug 604 of the first cover 400 'then comes into contact with the guide 705.
  • the latter in particular by the presence of a rounded section 707 in contact with which will evolve an end 708 of the guide lug 604, is designed such that the rotational movement imposed on the multifunctional concealer 204 'by the actuator 105 causes the first cover 400' to tilt relative to the second cover 206 about the secondary rotation axis 703.
  • the first cover 400 ' is thus folded towards the support 205 in a direction of rotation 709 opposite the direction 710 of the rotation, which causes said folding, the multifunction occulteur 204' around the first axis of rotation 211.
  • Such a configuration corresponds to the second posture P2 of the first cache 400 '
  • the actuator is dimensioned so as to be able to drive and hold in position the multifunctional occluder 204 'taking into consideration the additional forces due to the presence of the spring 704 and the frictional forces due to the contact between the guide lug 604 and the guide 705.
  • the spring 704 is for its part dimensioned to ensure the return of the first cover 400 'in its first posture P1 during the return of the multifunctional concealer 204' in the position corresponding to the code function or the highway function or bad weather.
  • the second cover 206 is made of metal material, stamped cut sheet metal for example and is overmolded in thermoplastic material resistant to temperature, which allows to integrate in the molded part in particular a connection with the actuator - such a link may for example consist of a gear wheel of a reduction system.
  • the first cover 400 is advantageously made by thermoplastic injection followed by an aluminizing step; the production of the first cache of ceramic material is also possible, the advantage of such an embodiment residing in the insulating nature of this material.

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  • Engineering & Computer Science (AREA)
  • General Engineering & Computer Science (AREA)
  • Non-Portable Lighting Devices Or Systems Thereof (AREA)
EP06292012.9A 2006-01-05 2006-12-21 Multifunktionales, elliptisches Scheinwerfergerät mit zusätzlichem, optischem Element Not-in-force EP1806531B1 (de)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
FR0600093A FR2895782B1 (fr) 2006-01-05 2006-01-05 Dispositif projecteur elliptique multifonctions avec element optique additionnel

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EP1806531A1 true EP1806531A1 (de) 2007-07-11
EP1806531B1 EP1806531B1 (de) 2015-07-29

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Cited By (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP2169299A1 (de) * 2008-09-30 2010-03-31 Valeo Vision Optisches Modul für ein Kraftfahrzeug, das selektiv eine Zone beleuchten kann
CN101871611A (zh) * 2009-04-24 2010-10-27 法雷奥照明公司 用于机动车的光学装置
CN101988666A (zh) * 2009-08-01 2011-03-23 汽车照明罗伊特林根有限公司 汽车前照灯的发光组件
CN102759058A (zh) * 2011-04-29 2012-10-31 黑拉许克联合股份有限公司 用于汽车的投射式前照灯
EP2597356A3 (de) * 2011-11-28 2015-04-29 Automotive Lighting Reutlingen GmbH Projektionsmodul mit einer Blende aus Kunststoffmaterial
EP3059121A1 (de) 2015-02-20 2016-08-24 Valeo Vision Erzeugung und fernverarbeitung von photometriedaten
EP2381167B1 (de) * 2010-04-22 2019-01-16 ZKW Group GmbH Scheinwerfer für Fahrzeuge

Families Citing this family (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE102013106569B4 (de) * 2013-06-24 2024-03-28 HELLA GmbH & Co. KGaA Scheinwerfer für Fahrzeuge mit einer drehbaren Blendenwelle, die Korrekturkanten zum Ausgleich von Abbildungsfehlern einer Linse aufweist
DE102019118590A1 (de) * 2019-07-09 2021-01-14 Automotive Lighting Reutlingen Gmbh Lichtmodul eines Kraftfahrzeugscheinwerfers und Kraftfahrzeugscheinwerfer mit einem solchen Lichtmodul

Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US5339226A (en) * 1992-06-03 1994-08-16 Koito Manufacturing Co., Ltd. Projection head lamp for cars
EP0624753A2 (de) * 1993-05-08 1994-11-17 Robert Bosch Gmbh Scheinwerfer für Fahrzeuge
EP1193440A1 (de) * 2000-10-02 2002-04-03 Stanley Electric Co., Ltd. Kfz-Scheinwerfer
FR2847655A1 (fr) * 2002-11-21 2004-05-28 Valeo Vision Projecteur elliptique pour vehicule automobile emettant des faisceaux d'eclairage differents
US20050201117A1 (en) * 2004-03-12 2005-09-15 Atsushi Sugimoto Projector type vehicle headlamp

Patent Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US5339226A (en) * 1992-06-03 1994-08-16 Koito Manufacturing Co., Ltd. Projection head lamp for cars
EP0624753A2 (de) * 1993-05-08 1994-11-17 Robert Bosch Gmbh Scheinwerfer für Fahrzeuge
EP1193440A1 (de) * 2000-10-02 2002-04-03 Stanley Electric Co., Ltd. Kfz-Scheinwerfer
FR2847655A1 (fr) * 2002-11-21 2004-05-28 Valeo Vision Projecteur elliptique pour vehicule automobile emettant des faisceaux d'eclairage differents
US20050201117A1 (en) * 2004-03-12 2005-09-15 Atsushi Sugimoto Projector type vehicle headlamp

Cited By (21)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2936591A1 (fr) * 2008-09-30 2010-04-02 Valeo Vision Sas Module optique pour vehicule automobile apte a eclairer selectivement une zone
EP2169299A1 (de) * 2008-09-30 2010-03-31 Valeo Vision Optisches Modul für ein Kraftfahrzeug, das selektiv eine Zone beleuchten kann
EP3045806A1 (de) * 2008-09-30 2016-07-20 Valeo Vision Optisches modul für ein kraftfahrzeug, das selektiv eine zone beleuchten kann
US8348485B2 (en) 2008-09-30 2013-01-08 Valeo Vision Optical module for a motor vehicle capable of selectively lighting a zone
CN101871611B (zh) * 2009-04-24 2014-12-10 法雷奥照明公司 用于机动车的光学装置
CN101871611A (zh) * 2009-04-24 2010-10-27 法雷奥照明公司 用于机动车的光学装置
EP2244007A1 (de) * 2009-04-24 2010-10-27 Valeo Vision Optische Vorrichtung für Kraftfahrzeug
FR2944857A1 (fr) * 2009-04-24 2010-10-29 Valeo Vision Dispositif optique pour vehicule automobile.
EP2244007B1 (de) 2009-04-24 2017-03-15 Valeo Vision Optische Vorrichtung für ein Kraftfahrzeug
US8459849B2 (en) 2009-04-24 2013-06-11 Valeo Vision Optical device for a motor vehicle
EP3045807A1 (de) * 2009-04-24 2016-07-20 Valeo Vision Optische vorrichtung für kraftfahrzeug
CN101988666A (zh) * 2009-08-01 2011-03-23 汽车照明罗伊特林根有限公司 汽车前照灯的发光组件
CN101988666B (zh) * 2009-08-01 2016-01-06 汽车照明罗伊特林根有限公司 汽车前照灯的发光组件
US8465187B2 (en) 2009-08-01 2013-06-18 Automotive Lighting Reutlingen Gmbh Light module for a motor vehicle headlamp
EP2280220A3 (de) * 2009-08-01 2012-01-18 Automotive Lighting Reutlingen GmbH Lichtmodul für einen Kraftfahrzeugscheinwerfer
EP2381167B1 (de) * 2010-04-22 2019-01-16 ZKW Group GmbH Scheinwerfer für Fahrzeuge
CN102759058A (zh) * 2011-04-29 2012-10-31 黑拉许克联合股份有限公司 用于汽车的投射式前照灯
CN102759058B (zh) * 2011-04-29 2016-08-31 黑拉许克联合股份有限公司 用于汽车的投射式前照灯
EP2597356A3 (de) * 2011-11-28 2015-04-29 Automotive Lighting Reutlingen GmbH Projektionsmodul mit einer Blende aus Kunststoffmaterial
EP3059121A1 (de) 2015-02-20 2016-08-24 Valeo Vision Erzeugung und fernverarbeitung von photometriedaten
US10272824B2 (en) 2015-02-20 2019-04-30 Valeo Vision Generation and remote processing of light maps

Also Published As

Publication number Publication date
FR2895782B1 (fr) 2013-05-17
FR2895782A1 (fr) 2007-07-06
EP1806531B1 (de) 2015-07-29

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