EP0690261A1 - Scheinwerfer mit elliptischem Reflektor und drehbarer Blende - Google Patents

Scheinwerfer mit elliptischem Reflektor und drehbarer Blende Download PDF

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Publication number
EP0690261A1
EP0690261A1 EP95401528A EP95401528A EP0690261A1 EP 0690261 A1 EP0690261 A1 EP 0690261A1 EP 95401528 A EP95401528 A EP 95401528A EP 95401528 A EP95401528 A EP 95401528A EP 0690261 A1 EP0690261 A1 EP 0690261A1
Authority
EP
European Patent Office
Prior art keywords
arm
projector
mirror
blade
legs
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
EP95401528A
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English (en)
French (fr)
Other versions
EP0690261B1 (de
Inventor
Gérard Billot
Alain Reynal
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
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Filing date
Publication date
Application filed by Valeo Vision SAS filed Critical Valeo Vision SAS
Publication of EP0690261A1 publication Critical patent/EP0690261A1/de
Application granted granted Critical
Publication of EP0690261B1 publication Critical patent/EP0690261B1/de
Anticipated expiration legal-status Critical
Expired - Lifetime 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
    • 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 generally to headlamps of the elliptical type for motor vehicles.
  • a projector of this kind conventionally comprises an elliptical mirror of the first focus of which is placed the filament of a lamp.
  • a converging lens is focused on the second focus of the mirror, and a lens closes the projector.
  • the lens may be formed by the lens itself.
  • a mask is placed in the vicinity of the second focal point of the mirror, one edge of which defines the profile of the cut and which obscures the part of the radiation that would otherwise propagate above this cutoff.
  • a difficulty of this type of projector compared to the parabolic type projectors lies in the difficulty that there is in modifying the profile of the cut. Such a modification may be desirable in particular when a headlight, designed for example for a right-hand traffic direction, must form a beam suitable for left-hand traffic. It may also be desirable to produce a universal headlamp capable of selectively generating a passing beam or an anti-fog beam.
  • this adaptation is carried out by affixing on the glass of the projector an adhesive mask masking part of the radiation of the side of the raised part of the cut so as to obtain a generally straight cut.
  • Also known from GB-A-2 273 555 is an elliptical projector, the cover of which is of an entirely different type, with a part rotating around a horizontal axis and parallel to the optical axis, and locking means. are provided to bring the rotating part of the cover selectively into a first or a second different position, to obtain two different beams, with good stability and good precision.
  • the present invention proposes to improve the type of projector known from DE-A-34 25 867, by giving it the advantages of the projector known from GB-A-2 273 355.
  • the tilting cover aims at means making it possible to give the tilting cover a particularly well-defined position in one or other of its two positions, as well as means for preventing the cover from risking occupying an intermediate position between the two positions allowing respectively to obtain the two cut beams.
  • Another important object of the present invention is to provide a tilting cover of the type taught in DE-A-34 25 867, which automatically ensures the coming of the tilting cover in a predetermined position in the event of failure of the positioning or locking means of the hidden.
  • the present invention relates to a motor vehicle headlamp having the features of claim 1 appended.
  • an elliptical type projector which comprises a lamp 10, a mirror 20 of the ellipsoidal type and a lens 40, as well as a closing glass not shown.
  • the filament of the lamp 10 is placed in the vicinity of the first focus F1 of the mirror 20.
  • the focal plane PF of the lens 40, coaxial with the mirror 20, passes through the second focus F2 of the mirror.
  • a mobile cover device is located between the mirror 20 and the lens 30, so as to selectively define, in the focal plane PF or in its vicinity, a first cover with a first cutting profile and a second cover with a second cutting profile.
  • These two covers are defined by a piece 31 rigidly mounted on a shaft 32 extending horizontally and perpendicular to the optical axis xx of the projector, at a certain distance below said axis.
  • this shaft indicated at 32a and 32b, rotate in two bearings respectively 33a and 33b formed by bending in the edges of a metal piece 33 forming an extension, provided in a conventional manner at the transition between the front edge of the cheeks 21 of the mirror and the rear edge of another extension 41 forming a lens holder.
  • the part 31, in the position illustrated in FIG. 2, has an upper profile defined by three straight segments 31a, 31b, 31c, arranged as illustrated, so as to generate a crossing light beam for right-hand traffic, that is that is to say with a raising of the cutoff, defined by the segments 31a and 31b, in the right half of the beam.
  • the lower profile of the part 31 is also defined by three straight lines 31d, 31e, 31f, defining, when the part 31 is turned 180 ° around the shaft 32, a cutting profile of a passing beam for left hand traffic.
  • the end 32b projects laterally beyond its bearing 33b, and on the projecting part is crimped an operating arm 34.
  • This arm comprises at a first end the opening surrounded by a sleeve 34b for crimping, and at the opposite end a grip part defined by two legs 34a folded 90 ° to the side. It is observed that the arm 34 extends vertically downwards in the position of the part 31 illustrated in FIG. 2, corresponding to a direction of circulation on the right.
  • the arm 34 is able to cooperate with stops to define two vertical stable positions, corresponding to the two positions of the part 31 corresponding to the cuts to be generated.
  • two abutments are provided in the form of slightly protruding tabs 22, 23, extend to the side from the side edge of an anterior flange 24 forming part of the mirror, and two second stops in the form of legs 33c, 33d also extending to the side, at the same height as the legs 22, 23, from the lateral edge of the piece forming a riser 33.
  • the intervals between the legs 22, 33c on the one hand and 23, 33d on the other hand, are equal or very slightly wider than the width of the arm.
  • the material of the arm is chosen so as to give it a certain elasticity, so that it can be, by acting on its grip part 34a, slightly apart towards the outside from the position illustrated in FIGS. 3 and 4, to be selectively trapped either between the two stops 22, 33c (high position), or between the two stops 23, 33d (low position).
  • the part 31 cannot occupy an intermediate position between the two positions defining the two cut beams. More precisely, as soon as the arm 34 is no longer trapped between the two upper stops 22, 33c, the part tends to tilt towards the position illustrated in FIGS. 2, 4 and 5, that is to say that which corresponds to a right-hand traffic direction (in the case where the vehicle is intended mainly for the right).
  • the return of the part 31 to its privileged position can be assisted by a spring.

Landscapes

  • Engineering & Computer Science (AREA)
  • General Engineering & Computer Science (AREA)
  • Non-Portable Lighting Devices Or Systems Thereof (AREA)
EP95401528A 1994-06-28 1995-06-27 Scheinwerfer mit elliptischem Reflektor und drehbarer Blende Expired - Lifetime EP0690261B1 (de)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
FR9407939A FR2721686B1 (fr) 1994-06-28 1994-06-28 Projecteur du type elliptique, comportant un cache basculant.
FR9407939 1994-06-28

Publications (2)

Publication Number Publication Date
EP0690261A1 true EP0690261A1 (de) 1996-01-03
EP0690261B1 EP0690261B1 (de) 1999-11-17

Family

ID=9464729

Family Applications (1)

Application Number Title Priority Date Filing Date
EP95401528A Expired - Lifetime EP0690261B1 (de) 1994-06-28 1995-06-27 Scheinwerfer mit elliptischem Reflektor und drehbarer Blende

Country Status (3)

Country Link
EP (1) EP0690261B1 (de)
DE (1) DE69513333T2 (de)
FR (1) FR2721686B1 (de)

Cited By (12)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2809802A1 (fr) * 2000-05-31 2001-12-07 Valeo Vision Projecteur pour vehicule automobile a ecran mobile et organe d'actionnement
FR2836713A1 (fr) * 2002-03-04 2003-09-05 Koito Mfg Co Ltd Phare de vehicule a obturateur mobile
EP1422471A2 (de) * 2002-11-21 2004-05-26 Valeo Vision Elliptischer Kfz-Scheinwerfer zur Erzeugung von verschiedenen Lichtbündeln
US6746143B1 (en) 2003-03-27 2004-06-08 Guide Corporation Variable progressive beam headlamp
FR2897415A1 (fr) * 2006-02-14 2007-08-17 Valeo Vision Sa Projecteur d'eclairage pour vehicules automobiles.
EP1512904A3 (de) * 2003-09-05 2007-12-19 Hella KGaA Hueck & Co. Scheinwerfer für Fahrzeuge
CZ302151B6 (cs) * 2005-05-24 2010-11-18 Visteon Global Technologies, Inc. Svetlomet pro vozidla
US7926993B2 (en) 2007-12-27 2011-04-19 Visteon Global Technologies, Inc. Projector unit
EP2384933A1 (de) * 2010-05-06 2011-11-09 Koito Manufacturing Co., Ltd. Fahrzeugscheinwerfersystem, Steuerungsvorrichtung und Fahrzeugscheinwerfer
CN102529796A (zh) * 2011-10-15 2012-07-04 浙江吉利汽车研究院有限公司 一种汽车用投射式近光左右驾光型切换的机械结构
CN102767770A (zh) * 2012-06-14 2012-11-07 吕根 一种车灯
CN111780049A (zh) * 2020-06-28 2020-10-16 华域视觉科技(上海)有限公司 一种车辆反射镜及基于此的近光单元

Families Citing this family (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2781870B1 (fr) 1998-08-03 2000-10-13 Valeo Vision Projecteur du type elliptique, comportant un cache basculant
DE19933414B4 (de) * 1999-07-16 2005-02-03 Automotive Lighting Reutlingen Gmbh Scheinwerfer für Kraftfahrzeuge
FR2840386B1 (fr) 2002-05-31 2005-01-07 Valeo Vision Projecteur a reflecteur pour vehicule automobile
FR2884296B1 (fr) 2005-04-06 2008-02-08 Peugeot Citroen Automobiles Sa Dispositif d'occultation d'un faisceau emis par un projecteur elliptique de vehicule et projecteur associe
FR2891046B1 (fr) * 2005-09-20 2007-10-19 Valeo Vision Sa Projecteur pour vehicule automobile equipe d'un cache a multi-positions.

Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE3415867A1 (de) * 1984-04-28 1985-10-31 Westfälische Metall Industrie KG Hueck & Co, 4780 Lippstadt Abgeblendeter fahrzeugscheinwerfer mit einem schalenfoermigen reflektor
DE3425867A1 (de) 1984-07-13 1986-01-16 Hanger, Erwin Schnellschlusskupplung fuer die anbringung von beleuchtungskoerpern an decken und waenden
GB2273555A (en) 1992-12-19 1994-06-22 Bosch Gmbh Robert Headlight for vehicles

Patent Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE3415867A1 (de) * 1984-04-28 1985-10-31 Westfälische Metall Industrie KG Hueck & Co, 4780 Lippstadt Abgeblendeter fahrzeugscheinwerfer mit einem schalenfoermigen reflektor
DE3425867A1 (de) 1984-07-13 1986-01-16 Hanger, Erwin Schnellschlusskupplung fuer die anbringung von beleuchtungskoerpern an decken und waenden
GB2273555A (en) 1992-12-19 1994-06-22 Bosch Gmbh Robert Headlight for vehicles

Cited By (18)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2809802A1 (fr) * 2000-05-31 2001-12-07 Valeo Vision Projecteur pour vehicule automobile a ecran mobile et organe d'actionnement
FR2836713A1 (fr) * 2002-03-04 2003-09-05 Koito Mfg Co Ltd Phare de vehicule a obturateur mobile
EP1422471A2 (de) * 2002-11-21 2004-05-26 Valeo Vision Elliptischer Kfz-Scheinwerfer zur Erzeugung von verschiedenen Lichtbündeln
FR2847655A1 (fr) * 2002-11-21 2004-05-28 Valeo Vision Projecteur elliptique pour vehicule automobile emettant des faisceaux d'eclairage differents
EP1422471A3 (de) * 2002-11-21 2007-12-05 Valeo Vision Elliptischer Kfz-Scheinwerfer zur Erzeugung von verschiedenen Lichtbündeln
US6746143B1 (en) 2003-03-27 2004-06-08 Guide Corporation Variable progressive beam headlamp
EP1512904A3 (de) * 2003-09-05 2007-12-19 Hella KGaA Hueck & Co. Scheinwerfer für Fahrzeuge
CZ302151B6 (cs) * 2005-05-24 2010-11-18 Visteon Global Technologies, Inc. Svetlomet pro vozidla
EP1818602A3 (de) * 2006-02-14 2009-06-03 Valeo Vision Beleuchtungsscheinwerfer für Kraftfahrzeuge
US7568825B2 (en) 2006-02-14 2009-08-04 Valeo Vision Headlight for motor vehicles
FR2897415A1 (fr) * 2006-02-14 2007-08-17 Valeo Vision Sa Projecteur d'eclairage pour vehicules automobiles.
US7926993B2 (en) 2007-12-27 2011-04-19 Visteon Global Technologies, Inc. Projector unit
CZ306609B6 (cs) * 2007-12-27 2017-03-29 Varroc Lighting Systems, s.r.o. Projektorová jednotka
EP2384933A1 (de) * 2010-05-06 2011-11-09 Koito Manufacturing Co., Ltd. Fahrzeugscheinwerfersystem, Steuerungsvorrichtung und Fahrzeugscheinwerfer
CN102529796A (zh) * 2011-10-15 2012-07-04 浙江吉利汽车研究院有限公司 一种汽车用投射式近光左右驾光型切换的机械结构
CN102529796B (zh) * 2011-10-15 2014-10-15 浙江吉利汽车研究院有限公司 一种汽车用投射式近光左右驾光型切换的机械结构
CN102767770A (zh) * 2012-06-14 2012-11-07 吕根 一种车灯
CN111780049A (zh) * 2020-06-28 2020-10-16 华域视觉科技(上海)有限公司 一种车辆反射镜及基于此的近光单元

Also Published As

Publication number Publication date
FR2721686B1 (fr) 1996-09-13
FR2721686A1 (fr) 1995-12-29
EP0690261B1 (de) 1999-11-17
DE69513333D1 (de) 1999-12-23
DE69513333T2 (de) 2000-04-13

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