EP1422471A2 - Elliptischer Kfz-Scheinwerfer zur Erzeugung von verschiedenen Lichtbündeln - Google Patents

Elliptischer Kfz-Scheinwerfer zur Erzeugung von verschiedenen Lichtbündeln Download PDF

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Publication number
EP1422471A2
EP1422471A2 EP03292835A EP03292835A EP1422471A2 EP 1422471 A2 EP1422471 A2 EP 1422471A2 EP 03292835 A EP03292835 A EP 03292835A EP 03292835 A EP03292835 A EP 03292835A EP 1422471 A2 EP1422471 A2 EP 1422471A2
Authority
EP
European Patent Office
Prior art keywords
cover
projector
wing
reflector
edge
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.)
Pending
Application number
EP03292835A
Other languages
English (en)
French (fr)
Other versions
EP1422471A3 (de
Inventor
Renato Di Dio
Giampiero Mogliotti
Jean-Claude Puente
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
Publication of EP1422471A2 publication Critical patent/EP1422471A2/de
Publication of EP1422471A3 publication Critical patent/EP1422471A3/de
Pending 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
    • F21S41/689—Flaps, i.e. screens pivoting around one of their edges
    • 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
    • F21S41/62—Illuminating devices specially adapted for vehicle exteriors, e.g. headlamps characterised by a variable light distribution for adaptation between right-hand and left-hand traffic

Definitions

  • the present invention relates to projectors of the elliptical type. for motor vehicles.
  • Elliptical type headlamps comprise in known manner a light source, an elliptical type reflector including a first focus is located near the source, a converging lens whose a focal plane passes in the vicinity of a second focus of the reflector.
  • Such a headlamp When such a headlamp must form a cut-off beam, such than a passing beam or a fog beam, it includes a cover interposed at the second focal point of the reflector, which obscures the part of the radiation, which would otherwise spread over this cut.
  • a known solution to modify the profile of the cut consists to intervene on the projector cover to modify its profile cut.
  • a elliptical projector of the type comprising a first cover provided between the reflector and lens, which has an edge defining a first profile particular cut-off for the light beam emitted, and a second cover disposed on the first cover and selectively movable between two positions, a first position in which an edge of the second cover is positioned on the path of the light rays to form with the first hides a light beam with a second cut profile particular, and a second position in which said edge of the second cover is substantially positioned outside the path of the light rays to form a light beam with the first cut profile.
  • a solution to selectively perform a function crossing or a road function consists of rotating the cover mobile of the projector to position it respectively in or out of the light beam emitted.
  • the cover is pivotally mounted on a frame part of the projector, at one of its lateral sides, and the movement of the cover is pivoted so that it always remains in the vertical plane transverse to the optical axis where it is in position crossing.
  • Such a projector has several drawbacks. First of all, with such a cover arrangement pivoting about an axis parallel to the optical axis, taking into account the small space available in the housing of the projector, below the cover, it is impossible to release completely cover the emitted light beam, on the side of the axis of pivoting of said cover.
  • document FR-A-2,796,449 offers an elliptical type projector which has a main cover mounted pivoting about a transverse axis and which includes a cover secondary mounted pivoting about an axis parallel to the optical axis.
  • the spotlight creates a beam lighting with a first cut-off profile.
  • the projector achieves a lighting beam with a second cutoff profile different from the first.
  • the secondary cover is provided to modify the cut made by the main cover in the lighting beam by increasing the obscured surface. Therefore, the secondary cache does not allow create a light beam with a cut-off profile specific with a less obscured lighting area compared to at the first cut profile.
  • the secondary cover being of small dimensions, the thermal stresses to which it is subjected inside the projector may change its geometry and cause projector malfunctions.
  • the thermal constraints mentioned above also make it difficult to index the different positions of the secondary cover.
  • the route function is difficult to achieve in because of the proximity of the pivot axis of the secondary cover with the upper part of the main cover, this proximity being imposed by the optical conjugation of the lens with the reflector.
  • the present invention is placed in this context and aims to remedy these drawbacks by proposing a projector equipped with movable covers so as to generate different beams lighting, which is simple, reliable and economical.
  • the invention provides a vehicle headlamp automobile, comprising a light source, a reflector of the type elliptical whose first focus is located near the source, a converging lens of which a focal plane passes in the vicinity of a second reflector focus, first and second covers which are inserted axially, along the optical axis of the projector, between the reflector and the lens, of the type in which the first cover is pivotally mounted around of a transverse axis between two extreme positions.
  • the second cover is mounted at pivoting around a second pivot axis arranged on the first cover, the first cover is generally rectangular, and the second axis pivot is arranged along the upper transverse edge of the first cache.
  • a headlight 10 for a vehicle is shown.
  • automobile which comprises a lamp 12 mounted in the bottom of a reflector 14 of the elliptical type such that the light source 16, ie the filament of an incandescent lamp or the electric arc of a discharge lamp as in the example shown, is located at neighborhood of a first focus of the reflector 14.
  • optical axis A-A of the projector 10 which corresponds to a right-to-left orientation considering the Figures 2 to 5, i.e. in the direction of propagation of the rays bright at the exit of the projector.
  • the optical axis A-A is generally parallel to the longitudinal axis of the vehicle that the headlight 10 equips.
  • the optical axis A-A is here substantially horizontal and it can be defined for example by the two focal points of the reflector 14.
  • the projector 10 includes a converging lens 18, for example example plano-convex, which is mounted, in the front, in a part intermediate 20 of the projector 10 fixed on a transverse surface front 22 of reflector 14.
  • a converging lens 18, for example example plano-convex which is mounted, in the front, in a part intermediate 20 of the projector 10 fixed on a transverse surface front 22 of reflector 14.
  • the focal plane of the lens 18 passes in the vicinity of the second focal point of the reflector 14.
  • the projector 10 has a first cover 24 and a second cover 26 which are interposed between the reflector 14 and the lens 18, at the vicinity of the focal plane of the lens 18.
  • All the elements described above constitute a block spotlight optics 10 which is for example mounted so classic in a case (not shown) closed by a glass.
  • first cover 24 and the second cover 26 are pivotally mounted by relative to reflector 14.
  • the first cover 24 is mounted at pivoting about a pivot axis A1 formed on a plate 28 interposed axially between the reflector 14 and the intermediate piece 20.
  • the first cover 24 a broadly shaped like a rectangular plate and it has two edges 30, 32 substantially transverse and, here by way of example not limiting, two substantially vertical lateral edges which give the plate a generally rectangular shape.
  • the geometric pivot axis A1 of the first cover 24 is arranged here along the lower transverse edge, or transverse edge of pivot 30.
  • the first cover 24 comprises for example at each end of the transverse edge of pivoting 30 a section of shaft which, on one side, is mounted free at rotation in a bearing of the intermediate framework piece 28 and of the other side is integral with rotation of the drive shaft of a actuator, such as an electric motor or an electromagnet (not represented).
  • a actuator such as an electric motor or an electromagnet (not represented).
  • the first cover 24 is thus movable between two positions extremes, a first substantially vertical position, and a second tilted forward position.
  • the second cover 26 is pivotally mounted around an axis of pivoting A2 arranged along the upper transverse edge of the first cover 24, or transverse pivoting edge 32.
  • the second cover 26 is in the form of an "L" angle, it is formed by two wings generally rectangular planes 26A and 26B forming between them a angle, and it is likely to pivot on the first cover 24 around the axis A2 passing through the junction zone of the two wings 26A and 26B.
  • the second cover 26 is thus movable in rotation relative to the first cover 24, between two extreme positions, in which a of the two wings 26A or 26B is substantially in the extension of the first cover 24.
  • the second cover when the first cover 24 occupies its first position vertical, the second cover also has one of its wings 26A or 26B in vertical position.
  • the respective dimensions of the first cover 24 and wings 26A or 26B are such that the free edge of wing 26a or 26B is located in the immediate vicinity of the optical axis A-A, and at the immediate vicinity of the second focus of the reflector 14.
  • the rays light reflected by the reflector 14 are concentrated in a spot light at the second focus of the reflector 14, that is to say on the edge of one of the wings 26A or 26B when the first cover is in position vertical, the lens 18 forming an image of this light spot infinity.
  • each wing 26A or 26B opposite the transverse pivot edge along the axis A2 forms an edge of cutoff, i.e. it defines a cutoff profile for the beam lighting emitted by the projector 10 when the first cover 24 occupies its vertical position.
  • the cutting edge of the wing 26A is designed to produce a cut-off light beam suitable for one direction traffic on the right, while the cutting edge of wing 26B will be designed to produce a cut-off light beam suitable for one direction left hand traffic.
  • first and second covers 24 and 26 different light beams can be obtained. For example, if the first cache 24 is in its first vertical position, and if the second cover 26 is also in its first position in which the wing 26A is in line with the first cover 24, as shown in Figure 2, the projector 10 will generate a crossing light beam adapted for one direction traffic on the right.
  • the projector 10 will generate a passing beam of light adapted for a direction of circulation at left.
  • the projector 10 will generate an unbroken light beam, i.e. a beam of road.
  • the cutting edge of the wing 26B of the second cover is provided so that the projector 10 achieves a “AFS” type lighting function.
  • AFS Advanced Weather Lighting
  • it can “Adverse Weather Lighting” type lighting function, ie a lighting function for traffic in rainy weather which limits glare produced in the direction of oncoming vehicles opposite.
  • the cutting edge of the wing 26B of the second cover 26 could be provided to perform another type of lighting function, for example a lighting function for city traffic ("Town Lighting ”) in which the occultation is more important than in lighting in rainy weather, or a lighting function for highway traffic.
  • a lighting function for city traffic "Town Lighting ”
  • a lighting function for highway traffic for example a lighting function for city traffic (Town Lighting ") in which the occultation is more important than in lighting in rainy weather, or a lighting function for highway traffic.
  • the second cover 26 includes more than two wings, for example one wing having a cutting edge for a beam adapted to a right-hand traffic direction, a wing having a cutting edge for a beam adapted to a direction of left-hand traffic, a wing with a cut-off edge for beam suitable for driving in rainy weather, and a wing having a cutting edge for a beam suitable for traffic on highway.

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  • Engineering & Computer Science (AREA)
  • General Engineering & Computer Science (AREA)
  • Non-Portable Lighting Devices Or Systems Thereof (AREA)
EP03292835A 2002-11-21 2003-11-14 Elliptischer Kfz-Scheinwerfer zur Erzeugung von verschiedenen Lichtbündeln Pending EP1422471A3 (de)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
FR0214777 2002-11-21
FR0214777A FR2847655B1 (fr) 2002-11-21 2002-11-21 Projecteur elliptique pour vehicule automobile emettant des faisceaux d'eclairage differents

Publications (2)

Publication Number Publication Date
EP1422471A2 true EP1422471A2 (de) 2004-05-26
EP1422471A3 EP1422471A3 (de) 2007-12-05

Family

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Family Applications (1)

Application Number Title Priority Date Filing Date
EP03292835A Pending EP1422471A3 (de) 2002-11-21 2003-11-14 Elliptischer Kfz-Scheinwerfer zur Erzeugung von verschiedenen Lichtbündeln

Country Status (2)

Country Link
EP (1) EP1422471A3 (de)
FR (1) FR2847655B1 (de)

Cited By (13)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP1726875A1 (de) 2005-05-27 2006-11-29 Valeo Vision Optisches Modul für Fahrzeug -Beleuchtungseinrichtung
EP1746340A2 (de) 2005-07-21 2007-01-24 Valeo Vision Optisches Modul für eine Kfz-Beleuchtungseinrichtung
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
EP2060848A1 (de) * 2007-11-16 2009-05-20 Valeo Vision Elliptischer Scheinwerfer für Kraftfahrzeug der mit einer Lichtblende für Reisen in Länder mit Verkehr auf der anderen Fahrbahnseite ausgestattet ist
EP2244007A1 (de) 2009-04-24 2010-10-27 Valeo Vision Optische Vorrichtung für Kraftfahrzeug
CZ302151B6 (cs) * 2005-05-24 2010-11-18 Visteon Global Technologies, Inc. Svetlomet pro vozidla
EP2366587A1 (de) 2010-03-05 2011-09-21 Valeo Vision Optisches System für Kraftfahrzeug
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***
EP1980786B1 (de) * 2007-04-10 2014-03-26 Koito Manufacturing Co., Ltd. Fahrzeugbeleuchtungseinheit
USD886343S1 (en) 2020-01-07 2020-06-02 Jiangsu Lide Automotive Optical System Co., Ltd. Automobile front combination lamp
CN111692567A (zh) * 2019-03-14 2020-09-22 法雷奥照明公司 对至少两个集光器的被照射的表面进行成像的发光装置
DE102019118590A1 (de) * 2019-07-09 2021-01-14 Automotive Lighting Reutlingen Gmbh Lichtmodul eines Kraftfahrzeugscheinwerfers und Kraftfahrzeugscheinwerfer mit einem solchen Lichtmodul

Families Citing this family (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE102004045881A1 (de) * 2004-09-22 2006-03-23 Automotive Lighting Reutlingen Gmbh Scheinwerfer
FR2895782B1 (fr) * 2006-01-05 2013-05-17 Valeo Vision Dispositif projecteur elliptique multifonctions avec element optique additionnel
FR3041069B1 (fr) 2015-09-10 2018-08-17 Valeo Vision Module lumineux pour l'eclairage et/ou la signalisation d'un vehicule automobile

Citations (6)

* 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
EP0690261A1 (de) * 1994-06-28 1996-01-03 Valeo Vision Scheinwerfer mit elliptischem Reflektor und drehbarer Blende
EP0723108A1 (de) * 1995-01-17 1996-07-24 Robert Bosch Gmbh Scheinwerfer für Fahrzeuge
FR2769071A1 (fr) * 1997-09-26 1999-04-02 Valeo Vision Projecteur de type elliptique a faisceau variable, notamment pour vehicule automobile
EP1031785A2 (de) * 1999-02-27 2000-08-30 Hella KG Hueck & Co. Scheinwerfer für Fahrzeuge
EP1201988A2 (de) * 2000-10-25 2002-05-02 Zizala Lichtsysteme GmbH Fahrzeugscheinwerfer

Patent Citations (6)

* 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
EP0690261A1 (de) * 1994-06-28 1996-01-03 Valeo Vision Scheinwerfer mit elliptischem Reflektor und drehbarer Blende
EP0723108A1 (de) * 1995-01-17 1996-07-24 Robert Bosch Gmbh Scheinwerfer für Fahrzeuge
FR2769071A1 (fr) * 1997-09-26 1999-04-02 Valeo Vision Projecteur de type elliptique a faisceau variable, notamment pour vehicule automobile
EP1031785A2 (de) * 1999-02-27 2000-08-30 Hella KG Hueck & Co. Scheinwerfer für Fahrzeuge
EP1201988A2 (de) * 2000-10-25 2002-05-02 Zizala Lichtsysteme GmbH Fahrzeugscheinwerfer

Cited By (23)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CZ302151B6 (cs) * 2005-05-24 2010-11-18 Visteon Global Technologies, Inc. Svetlomet pro vozidla
FR2886376A1 (fr) 2005-05-27 2006-12-01 Valeo Vision Sa Module optique pour dispositif d'eclairage automobile
EP1726875A1 (de) 2005-05-27 2006-11-29 Valeo Vision Optisches Modul für Fahrzeug -Beleuchtungseinrichtung
US7722233B2 (en) 2005-07-21 2010-05-25 Valeo Vision Optical module for a motor vehicle lighting device
EP1746340A2 (de) 2005-07-21 2007-01-24 Valeo Vision Optisches Modul für eine Kfz-Beleuchtungseinrichtung
FR2888916A1 (fr) 2005-07-21 2007-01-26 Valeo Vision Sa Module optique pour dispositif d'eclairage automobile
EP1980786B1 (de) * 2007-04-10 2014-03-26 Koito Manufacturing Co., Ltd. Fahrzeugbeleuchtungseinheit
EP2006604A1 (de) 2007-06-18 2008-12-24 Valeo Vision Optisches Modul für Beleuchtungseinrichtung für Fahrzeuge
EP2006605A1 (de) 2007-06-18 2008-12-24 Valeo Vision Fahrzeugsscheinwerfer
FR2923775A1 (fr) * 2007-11-16 2009-05-22 Valeo Vision Sa Projecteur elliptique pour vehicule automobile equipe d'un cache vacancier
EP2060848A1 (de) * 2007-11-16 2009-05-20 Valeo Vision Elliptischer Scheinwerfer für Kraftfahrzeug der mit einer Lichtblende für Reisen in Länder mit Verkehr auf der anderen Fahrbahnseite ausgestattet ist
DE202010018335U1 (de) 2009-04-24 2015-09-14 Valeo Vision Optische Vorrichtung für Kraftfahrzeug
US8459849B2 (en) 2009-04-24 2013-06-11 Valeo Vision Optical device for a motor vehicle
DE202010018337U1 (de) 2009-04-24 2015-09-14 Valeo Vision Optische Vorrichtung für Kraftfahrzeug
DE202010018336U1 (de) 2009-04-24 2015-09-14 Valeo Vision Optische Vorrichtung für Kraftfahrzeug
EP2244007A1 (de) 2009-04-24 2010-10-27 Valeo Vision Optische Vorrichtung für Kraftfahrzeug
EP3045807A1 (de) 2009-04-24 2016-07-20 Valeo Vision Optische vorrichtung für kraftfahrzeug
DE202010018458U1 (de) 2009-04-24 2016-10-26 Valeo Vision Optische Vorrichtung für Kraftfahrzeug
EP2366587A1 (de) 2010-03-05 2011-09-21 Valeo Vision Optisches System für Kraftfahrzeug
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***
CN111692567A (zh) * 2019-03-14 2020-09-22 法雷奥照明公司 对至少两个集光器的被照射的表面进行成像的发光装置
DE102019118590A1 (de) * 2019-07-09 2021-01-14 Automotive Lighting Reutlingen Gmbh Lichtmodul eines Kraftfahrzeugscheinwerfers und Kraftfahrzeugscheinwerfer mit einem solchen Lichtmodul
USD886343S1 (en) 2020-01-07 2020-06-02 Jiangsu Lide Automotive Optical System Co., Ltd. Automobile front combination lamp

Also Published As

Publication number Publication date
FR2847655B1 (fr) 2005-03-04
FR2847655A1 (fr) 2004-05-28
EP1422471A3 (de) 2007-12-05

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