EP0690261B1 - Scheinwerfer mit elliptischem Reflektor und drehbarer Blende - Google Patents

Scheinwerfer mit elliptischem Reflektor und drehbarer Blende Download PDF

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Publication number
EP0690261B1
EP0690261B1 EP95401528A EP95401528A EP0690261B1 EP 0690261 B1 EP0690261 B1 EP 0690261B1 EP 95401528 A EP95401528 A EP 95401528A EP 95401528 A EP95401528 A EP 95401528A EP 0690261 B1 EP0690261 B1 EP 0690261B1
Authority
EP
European Patent Office
Prior art keywords
headlight
arm
leaf
reflector
lugs
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.)
Expired - Lifetime
Application number
EP95401528A
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English (en)
French (fr)
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EP0690261A1 (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
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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 elliptical headlamps for vehicles automobiles.
  • a projector of this kind conventionally comprises a mirror of the elliptical kind at 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 firm lens the projector.
  • the lens may be formed by the ice itself.
  • a headlamp When such a headlamp is to generate a beam at break, such as a passing beam or a beam anti-fog, place in the vicinity of the second hearth of the mirror a cover whose edge defines the profile of the cut and which obscures the part of the radiation which otherwise would spread over this cut.
  • a beam at break such as a passing beam or a beam anti-fog
  • a difficulty of this type of projector compared to the parabolic type spotlight lies in the difficulty in modifying the profile of the cut.
  • Such a modification may be desirable in particular when a projector, designed for example for a sense of traffic on the right, must form a beam adapted to a left hand traffic. It may also be desirable to make a universal projector capable of generating selectively a passing beam or a beam anti-fog.
  • this adaptation is done by affixing a cover on the projector glass adhesive masking part of the radiation on the side of the raised part of the cut so as to obtain a generally straight cut.
  • the present invention proposes to improve the type of projector known from DE-A-34 15 867, giving it the advantages of the projector known from GB-A-2 273 555.
  • the tilting cover targets means allowing give the tilting cover a particularly position well defined in either of its two positions, as well as means to prevent the cache from risking to occupy an intermediate position between the two positions allowing respectively to obtain the two cut beams.
  • Another important object of the present invention is to propose a tilting cover of the type taught in DE-A-34 15 867, which automatically ensures the coming of the cache tilting in a predetermined position in case of failure of positioning or locking means of the cache.
  • the present invention relates to a floodlight motor vehicle having the characteristics of the claim 1 appended.
  • a projector elliptical type which includes a lamp 10, a mirror 20 of the ellipsoidal genus and a lens 40, as well as an ice closure 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 focal point F2 of the mirror.
  • a mobile cache device is located between the mirror 20 and the lens 30, of so as to selectively define, in the focal plane PF or to its vicinity, a first cache with a first profile of cut-off and a second cover with a second profile of break.
  • These two covers are defined by a part 31 mounted rigidly on a shaft 32 extending horizontally and perpendicular to the optical axis xx of the projector, at a certain distance below said axis.
  • the part 31, in the position illustrated in the figure 2, has an upper profile defined by three segments right 31a, 31b, 31c, arranged as illustrated, of so as to generate a passing light beam for right-hand traffic, i.e. with an increase in break, defined by segments 31a and 31b, in the half beam right.
  • the lower profile of the part 31 is also defined by three line segments 31d, 31e, 31f, defining, when the part 31 is turned 180 ° around the shaft 32, a cut profile of a beam of cross for left-hand traffic.
  • the end 32b projects laterally beyond its bearing 33b, and on the projecting part is crimped an arm maneuver 34.
  • This arm comprises at a first end the opening surrounded by a sleeve 34b for crimping, and at the opposite end a defined grip part by two legs 34a folded 90 ° to the side.
  • the arm 34 extends vertically downward in the position of the part 31 illustrated in FIG. 2, corresponding to a right-hand traffic direction.
  • the arm 34 is able to cooperate with stops for define two vertical stable positions, corresponding at the two positions of the part 31 corresponding to the cuts to generate.
  • first stops are provided in the form of slightly protruding legs 22, 23, extend to the side from the side edge of a front flange 24 forming part of the mirror, and two second stops in the form of legs 33c, 33d extending also to the side, at the same height as the legs 22, 23, from the lateral edge of the part forming raises 33.
  • the intervals between the legs 22, 33c of a part 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 that it give some elasticity, so that it can be, by acting on its grip part 34a, slightly outward from the position illustrated in Figures 3 and 4, to be selectively trapped either between the two stops 22, 33c (position high), or between the two stops 23, 33d (position low).
  • part 31 cannot occupy an intermediate position between the two positions defining the two beams cut. More precisely, as soon as the arm 34 is no longer prisoner between the two upper stops 22, 33c, the part tends to tilt to the position illustrated on the Figures 2, 4 and 5, i.e. the one corresponding to a right-hand traffic direction (in case the vehicle is mainly intended for the right).
  • the return of the part 31 to its position privileged can be assisted by a spring.

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  • Engineering & Computer Science (AREA)
  • General Engineering & Computer Science (AREA)
  • Non-Portable Lighting Devices Or Systems Thereof (AREA)

Claims (6)

  1. Kraftfahrzeugscheinwerfer, umfassend eine Lichtquelle (10), einen Spiegel in Ellipsoidausführung (20), dessen erster Brennpunkt (F1) in der Nähe der Lichtquelle angeordnet ist, eine Sammellinse (40), von der eine Brennebene (PF) in der Nähe eines zweiten Brennpunkts (F2) des Spiegels verläuft, und eine Vorrichtung mit beweglicher Blende (30), die zwischen dem Spiegel und der Linse angeordnet ist, wobei die Vorrichtung mit beweglicher Blende einen Streifen (31) umfaßt, der zwei gegenüberliegende Kanten (31a-c, 31d-f) aufweist und sich um eine insgesamt horizontale und zu einer optischen Achse des Scheinwerfers quer angeordnete Achse drehen kann, wobei jede der Kanten des besagten Streifens ein besonderes Hell-Dunkel-Profil für das erzeugte Lichtbündel definiert, und ein Mittel (34) zur Betätigung und Verriegelung des besagten Streifens, um wahlweise eine der beiden Kanten auf den Verlauf der Lichtstrahlung zu bringen und wahlweise zwei verschiedene Lichtbündel mit Hell-Dunkel-Grenze zu bilden, wobei der Streifen (31) fest mit einer Welle (32) verbunden ist, die sich in Lagern (33a, 33b) drehen kann, dadurch gekennzeichnet, daß diese Lager in einem fest mit dem Spiegel verbundenen Gerüstteil (33) des Scheinwerfers ausgebildet sind, daß das Betätigungs- und Verriegelungsmittel einen Arm (34) umfaßt, der fest mit der Welle verbunden ist und sich asymmetrisch im Verhältnis zu der durch die besagte Welle definierten Drehachse erstreckt, daß die Vorrichtung mit beweglicher Blende außerdem Anschlagmittel (22, 23, 33c, 33d) umfaßt, die zwei stabile Positionen des besagten Arms, beide allgemein vertikal, definieren, und daß die Asymmetrie des Arms so gestaltet ist, daß sie durch Schwerkraft eine vorrangige stabile Position des Streifens im Falle der Nichtverriegelung des besagten Arms herbeiführt.
  2. Scheinwerfer nach Anspruch 1, dadurch gekennzeichnet, daß die Anschlagmittel zwei Paare von seitlich vorstehenden Ansätzen (22, 33c; 23, 33d) umfassen und daß der Arm vorübergehend elastisch zur Außenseite des Scheinwerfers gebogen werden kann, um einen der besagten Ansätze zu überwinden und zwischen den beiden Ansätzen ein und desselben Paars eingeschlossen zu werden.
  3. Scheinwerfer nach Anspruch 2, dadurch gekennzeichnet, daß die Ansatzpaare durch den Spiegel (20) bzw. durch ein einen Aufsatz bildendes Element (33) des Scheinwerfers definiert sind, wobei der Abstand zwischen den Anschlägen ein und desselben Paars gleich oder etwas größer als die Breite des Arms (34) ist.
  4. Scheinwerfer nach einem der Ansprüche 1 bis 3, dadurch gekennzeichnet, daß die Lager (33a, 33b) in einem einen Aufsatz bildenden Element (33) des Scheinwerfers durch Biegen des Werkstoffs des besagten Elements ausgebildet sind.
  5. Scheinwerfer nach einem der Ansprüche 1 bis 4, dadurch gekennzeichnet, daß die zwei Kanten (31a-c, 31d-f) so gestaltet sind, daß ein Abblendlichtbündel für Rechtsverkehr bzw. ein Abblendlichtbündel für Linksverkehr erzeugt wird, und daß die nach unten gerichtete Position des Arms (34), die unter der Einwirkung der Schwerkraft eingenommen wird, der Erzeugung des Abblendlichtbündels für die Verkehrsseite entspricht, für die das Fahrzeug normalerweise vorgesehen ist.
  6. Scheinwerfer nach Anspruch 5, dadurch gekennzeichnet, daß er ein elastisches Mittel umfaßt, das die Wirkung der Schwerkraft unterstützen kann.
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 EP0690261A1 (de) 1996-01-03
EP0690261B1 true 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)

Families Citing this family (17)

* 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
FR2809802B1 (fr) * 2000-05-31 2002-09-06 Valeo Vision Projecteur pour vehicule automobile a ecran mobile et organe d'actionnement
JP3967153B2 (ja) * 2002-03-04 2007-08-29 株式会社小糸製作所 車両用前照灯
FR2840386B1 (fr) 2002-05-31 2005-01-07 Valeo Vision Projecteur a reflecteur pour vehicule automobile
FR2847655B1 (fr) * 2002-11-21 2005-03-04 Valeo Vision Projecteur elliptique pour vehicule automobile emettant des faisceaux d'eclairage differents
US6746143B1 (en) 2003-03-27 2004-06-08 Guide Corporation Variable progressive beam headlamp
DE10340962A1 (de) * 2003-09-05 2005-05-19 Hella Kgaa Hueck & Co. Scheinwerfer für Fahrzeuge
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
CZ302151B6 (cs) * 2005-05-24 2010-11-18 Visteon Global Technologies, Inc. Svetlomet pro vozidla
FR2891046B1 (fr) * 2005-09-20 2007-10-19 Valeo Vision Sa Projecteur pour vehicule automobile equipe d'un cache a multi-positions.
FR2897415B1 (fr) * 2006-02-14 2008-04-11 Valeo Vision Sa Projecteur d'eclairage pour vehicules automobiles.
CZ306609B6 (cs) * 2007-12-27 2017-03-29 Varroc Lighting Systems, s.r.o. Projektorová jednotka
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
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
CN102767770B (zh) * 2012-06-14 2014-03-12 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

Family Cites Families (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
DE4243174C2 (de) * 1992-12-19 2002-06-27 Bosch Gmbh Robert Kraftfahrzeugscheinwerfer mit einer verstellbaren Blendenanordnung

Also Published As

Publication number Publication date
DE69513333T2 (de) 2000-04-13
EP0690261A1 (de) 1996-01-03
FR2721686B1 (fr) 1996-09-13
FR2721686A1 (fr) 1995-12-29
DE69513333D1 (de) 1999-12-23

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