EP0215035B1 - Headlamp for dipped lights or fog lights for motor vehicles - Google Patents

Headlamp for dipped lights or fog lights for motor vehicles Download PDF

Info

Publication number
EP0215035B1
EP0215035B1 EP86901342A EP86901342A EP0215035B1 EP 0215035 B1 EP0215035 B1 EP 0215035B1 EP 86901342 A EP86901342 A EP 86901342A EP 86901342 A EP86901342 A EP 86901342A EP 0215035 B1 EP0215035 B1 EP 0215035B1
Authority
EP
European Patent Office
Prior art keywords
light
light beam
objective
lens
lenses
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
Application number
EP86901342A
Other languages
German (de)
French (fr)
Other versions
EP0215035A1 (en
Inventor
Christian Lietar
Jean-François LONGCHAMP
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.)
Robert Bosch GmbH
Original Assignee
Robert Bosch GmbH
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 Robert Bosch GmbH filed Critical Robert Bosch GmbH
Publication of EP0215035A1 publication Critical patent/EP0215035A1/en
Application granted granted Critical
Publication of EP0215035B1 publication Critical patent/EP0215035B1/en
Expired legal-status Critical Current

Links

Images

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
    • F21S41/20—Illuminating devices specially adapted for vehicle exteriors, e.g. headlamps characterised by refractors, transparent cover plates, light guides or filters
    • F21S41/25—Projection lenses
    • F21S41/255—Lenses with a front view of circular or truncated circular outline
    • 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
    • F21S41/20—Illuminating devices specially adapted for vehicle exteriors, e.g. headlamps characterised by refractors, transparent cover plates, light guides or filters
    • F21S41/28—Cover glass

Definitions

  • the invention relates to a headlight for low beam or fog light of motor vehicles according to the preamble of claim 1.
  • a headlight is known from FR-A1-2 550 847.
  • the lens of which must have a large relative opening so that the light beam on the one hand sufficiently illuminates the road and on the other hand its edges still sufficiently, occurs through dispersion of the light rays, i.e. the color separation of the light beam, in particular by the lens, has a color fringe at the light-dark boundary of the light beam.
  • This due to color location errors, i.e. chromatic aberration, caused color fringe is disturbing; moreover, such a light beam does not comply with the legal requirements.
  • a glass pane of constant thickness is provided on the plane side of the objective or the lens in the region of the upper and lower section in order to avoid this color fringe.
  • This glass pane can be connected to the lens or be placed in front of it. It can be clear, transparent or corrugated and is intended to deflect the rays forming the color fringe from the light-dark boundary into the region below the light-dark boundary by scattering or by deflecting downwards. In any case, this measure results in a similar refraction of the color fringe rays downwards or upwards, since the attached elements have no lens character.
  • the known headlamp is only partially effective in terms of avoiding the formation of color fringes.
  • a headlight for low beam of motor vehicles has a reflector 10, a light source 11 defocused with respect to its focal point and an optical axis 12.
  • the light beam 18 emitted by the reflector 10 produces a light spot with a light-dark boundary (HDG), which has a horizontal branch 19 and a branch 20 that rises by 15 degrees. If the correction element 16 were not present, a color fringe 21, which has a disruptive effect, would be caused on the HDG 19, 20 by color location errors (chromatic aberration). On the other hand, if the correction element 16 is located in the beam path of the light bundle 18, the HDG 19, 20 does not have this disturbing color fringe 21.
  • HDG light-dark boundary
  • the correction element 16 in FIG. 2 consists of an upper cylindrical half lens 22 and a lower cylindrical half lens 23, the vertical section of which corresponds to a converging or diverging lens. Both half lenses 22, 23 refract the light rays downwards, the refraction of the lower half lens 23 and that of the upper half lens 22 being different.
  • the optical axis of both half lenses 22, 23 is identical to the optical axis of the lens 15, which in turn is identical to the optical axis 12 of the headlamp.
  • the surface lines of the surface of the half lens 22 and that of the surface 25 of the lower half lens 23 are arranged parallel and horizontally to one another. Both surfaces 24, 25 meet in a connection point 26 which contains the optical axis 12 and which lies in a plane 27 perpendicular to this axis, the two surfaces 24, 25 tangentially touching the plane 27.
  • the upper half-lens 22 of the correction element 16 directs the beam 30 near the edge, which is most strongly refracted and fanned out, in such a way that its red radiation component 31 also at least on or below the HDG 19, 20 in the bright area of the light beam 18 falls.
  • the beam 28 remote from the axis is likewise refracted by the objective 15 and fanned out into its red and blue beam components 31, 32.
  • the half-lens 23 of the correction element 16 directs the beam 28 down at least so far that its blue radiation component 32 also falls under the HDG 19, 20 in the bright area of the light beam 18.
  • the correction element 16 therefore steers all of the color fringe 21 (FIG. 1) and the color locus rays subject to errors in the bright area of the light beam 18, where they mix.
  • the rising branch 20 of the HDG closes with the horizontal branch - i.e. with the horizontal 34 - an angle of 15 degrees.
  • the surface lines of the surface of that lens half, which form the rising branch 20 are preferably inclined by half the pitch angle (15 degrees) to the horizontal 34.
  • the correction element 36 of the second exemplary embodiment in FIG. 3 breaks down the light bundle emerging from the objective 15, which symbolize the boundary rays 37, 38, into many differently directed partial light bundles 39; these overlap one another and combine on the measuring screen 17 to form a non-colored light beam.
  • the correction element 16 'in FIG. 4 has an essentially flat side 40 facing the objective 15 and a side with a plurality of cylindrical lenses 41 which touch one another and whose surface lines of the surfaces are arranged parallel and horizontally to one another.
  • these partial lenses 41 need only partially cover the usable area of the correction element 16 '.
  • the objective and the correction element can be produced in one piece, in particular the side of the objective with the correction element being produced by pressing.

Landscapes

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

Abstract

The headlamp has a non-colour-corrected lens (15) which reproduces the edge of the mask (14) as a light/dark boundary (19, 20) of the light beam (18) on the road, and a correction element (16), which deflects the rays of the light beam (18) that form a colour fringe on the light/dark boundary (19, 20) in the light area of the beam. In this way the white light beam (18) prescribed by legislation is produced without the troublesome colour fringe.

Description

Die Erfindung betrifft einen Scheinwerfer für Abblendlicht oder Nebellicht von Kraftfahrzeugen nach der Gattung des Patentanspruchs 1. Ein derartiger Scheinwerfer ist durch die FR-A1-2 550 847 bekannt. Bei Scheinwerfern dieser Art, deren Objektiv eine große relative Öffnung aufweisen muß, damit das Lichtbündel die Fahrbahn einerseits ausreichend weit und andererseits deren Ränder noch genügend ausleuchtet, tritt durch Dispersion der Lichtstrahlen, d.h. die Farbzerlegung des Lichtbündels, durch insbesondere das Objektiv, an der Helldunkelgrenze des Lichtbündels ein Farbsaum auf. Dieser durch Farbortsfehler, d.h. chromatische Aberration, hervorgerufene Farbsaum wirkt störend; darüber hinaus entspricht ein derartiges Lichtbündel nicht den Gesetzesvorschriften.The invention relates to a headlight for low beam or fog light of motor vehicles according to the preamble of claim 1. Such a headlight is known from FR-A1-2 550 847. In headlamps of this type, the lens of which must have a large relative opening so that the light beam on the one hand sufficiently illuminates the road and on the other hand its edges still sufficiently, occurs through dispersion of the light rays, i.e. the color separation of the light beam, in particular by the lens, has a color fringe at the light-dark boundary of the light beam. This due to color location errors, i.e. chromatic aberration, caused color fringe is disturbing; moreover, such a light beam does not comply with the legal requirements.

Bei dem bekannten Scheinwerfer ist zur Vermeidung dieses Farbsaums auf der Planseite des Objektivs bzw. der Linse im Bereich des oberen und unteren Abschnitts eine Glasscheibe konstanter Dicke vorgesehen. Diese Glasscheibe kann mit der Linse verbunden sein oder dieser vorangestellt sein. Sie kann klar, durchsichtig oder geriffelt sein und soll durch Streuung oder durch Ablenkung nach unten die den Farbsaum bildenden Strahlen von der Helldunkelgrenze hinweg in den Bereich unterhalb der Helldunkelgrenze ablenken. Durch diese Maßnahme erfolgt in jedem Falle eine gleichartige Brechung der farbsaumbildenden Strahlen nach unten oder oben, da die aufgesetzten Elemente keinen Linsencharakter haben. Somit ist der bekannte Scheinwerfer im Sinne der Vermeidung von Farbsaumbildung nur unvollständig wirksam.In the known headlamp, a glass pane of constant thickness is provided on the plane side of the objective or the lens in the region of the upper and lower section in order to avoid this color fringe. This glass pane can be connected to the lens or be placed in front of it. It can be clear, transparent or corrugated and is intended to deflect the rays forming the color fringe from the light-dark boundary into the region below the light-dark boundary by scattering or by deflecting downwards. In any case, this measure results in a similar refraction of the color fringe rays downwards or upwards, since the attached elements have no lens character. Thus, the known headlamp is only partially effective in terms of avoiding the formation of color fringes.

Mit dem Scheinwerfer für Abblendlicht oder Nebellicht von Kraftfahrzeugen nach der Erfindung wird das im vorerwähnten Stand der Technik dargelegte Problem mit technisch einfachen Mitteln gelöst.With the headlamp for low beam or fog light of motor vehicles according to the invention, the problem set out in the aforementioned prior art is solved with technically simple means.

Vorteilhafte Weiterbildungen der Erfindung sind in den abhängigen Ansprüchen beschrieben.Advantageous developments of the invention are described in the dependent claims.

Mehrere Ausführungsbeispiele der Erfindung sind in der Zeichnung dargestellt und in der Figurenbeschreibung näher erläutert.Several embodiments of the invention are shown in the drawing and explained in more detail in the description of the figures.

Es zeigen:

  • Fig. 1 eine schematische, perspektivische Darstellung eines Scheinwerfers für Abblendlicht von Kraftfahrzeugen;
  • Fig. 2 das Prinzip der ersten Ausführung in unmaßl stäblicher Darstellung;
  • Fig. 3 das Prinzip der zweiten Ausführung, ebenfalls in unmaßstäblicher Darstellung; und
  • Fig. 4 ein Korrektionselement in raumbildlicher Darstellung gemäß zweiter Ausführung.
Show it:
  • Figure 1 is a schematic, perspective view of a headlight for low beam of motor vehicles.
  • Figure 2 shows the principle of the first embodiment in an immeasurable representation.
  • Figure 3 shows the principle of the second embodiment, also in an unscaled representation. and
  • Fig. 4 shows a correction element in a spatial representation according to the second embodiment.

Ein Scheinwerfer für Abblendlicht von Kraftfahrzeugen hat einen Reflektor 10, eine bezüglich dessen Brennpunkt defokussierte Lichtquelle 11 und eine optische Achse 12.A headlight for low beam of motor vehicles has a reflector 10, a light source 11 defocused with respect to its focal point and an optical axis 12.

Die von der Lichtquelle 11 erzeugten Strahlen bilden durch Reflexion am Reflektor 10 ein Lichtbündel 18 in dessen Strahlengang sind angeordnet: eine Blende 13 mit einer geknickten Kante 14, davor ein nichtfarbkorrigiertes (mit chromatischer Aberration behaftetes) Objektiv 1 und davor ein nur durch eine Scheibe dargestelltes Korrektionselement 16.The rays generated by the light source 11, by reflection on the reflector 10, form a light bundle 18 in the beam path of which are arranged: an aperture 13 with a bent edge 14, in front of it a non-color-corrected lens (with chromatic aberration) and in front of it a lens represented only by a pane Correction element 16.

Auf einem zur Achse 12 rechtwinkligen Meßschirm 17 ergibt das vom Reflektor 10 ausgesandte Lichtbündel 18 einen Lichfleck mit einer Helldunkelgrenze (HDG), die einen waagerechten Ast 19 und einen hierzu um 15 Grad ansteigenden Ast 20 aufweist. Bei Nichtvorhandensein des Korrektionselementes 16 entstünde an der HDG 19, 20 ein durch Farbortsfehler (chromatische Aberration) verursachter Farbsaum 21, der störend wirkt. Befindet sich hingegen das Korrektionselement 16 im Strahlengang des Lichtbündels 18, so weist die HDG 19, 20 diesen störenden Farbsaum 21 nicht auf.On a measuring screen 17 that is perpendicular to the axis 12, the light beam 18 emitted by the reflector 10 produces a light spot with a light-dark boundary (HDG), which has a horizontal branch 19 and a branch 20 that rises by 15 degrees. If the correction element 16 were not present, a color fringe 21, which has a disruptive effect, would be caused on the HDG 19, 20 by color location errors (chromatic aberration). On the other hand, if the correction element 16 is located in the beam path of the light bundle 18, the HDG 19, 20 does not have this disturbing color fringe 21.

Das Korrektionselement 16 in Figur 2 besteht aus einer oberen zylindrischen Halblinse 22 und aus einer unteren zylindrischen Halblinse 23, deren Vertikalschnitt einer konvergierenden bzw. divergierenden Linsen entspricht. Beide Halblinsen 22, 23 brechen die Lichtstrahlen nach unten, wobei die Brechung der unteren Halblinse 23 und die der oberen Halblinse 22 unterschiedlich sind. Die optische Achse beider Halblinsen 22, 23 ist identisch mit der optischen Achse des Objektivs 15, die ihrerseits identisch ist mit der optischen Achse 12 des Scheinwerfers. Die Mantellinien der Oberfläche Halblinse 22 und die der Oberfläche 25 der unteren Halblinse 23 sind zueinander parallel und horizontal angeordnet. Beide Oberfläche 24, 25 stoßen sich in einer Verbindungungsstelle 26, welche die optische Achse 12 enthält und welche in einer zu dieser Achse rechtwinkligen Ebene 27 liegt, wobei die beiden Oberfläche 24, 25 die Ebene 27 tangential berühren.The correction element 16 in FIG. 2 consists of an upper cylindrical half lens 22 and a lower cylindrical half lens 23, the vertical section of which corresponds to a converging or diverging lens. Both half lenses 22, 23 refract the light rays downwards, the refraction of the lower half lens 23 and that of the upper half lens 22 being different. The optical axis of both half lenses 22, 23 is identical to the optical axis of the lens 15, which in turn is identical to the optical axis 12 of the headlamp. The surface lines of the surface of the half lens 22 and that of the surface 25 of the lower half lens 23 are arranged parallel and horizontally to one another. Both surfaces 24, 25 meet in a connection point 26 which contains the optical axis 12 and which lies in a plane 27 perpendicular to this axis, the two surfaces 24, 25 tangentially touching the plane 27.

Anhand dreier Strahlen 28, 29 und 30 des Lichtbündels 18 wird die Wirkung des Korrektionselementes 16 beschrieben:

  • Achsnahe Strahlen (nicht gezeichnet) werden durch das nichtfarbkorrigierte Objektiv 15 und das Korrektionselement 16 fast nicht beeinflußt und bilden ohne Farbsaum die HDG 19,20 des Lichtbündels 18. Der achsferne Strahl 29 wird beim Durchgang das Objektiv 1 gebrochen und aufgefächert (dispergiert) zwischen seinem roten Strahlenanteil 31 und seinem blauen Strahlenanteil 32. Ohne das Korrektionselement 16 würde der Strahl 29 - mindestens sein roter Strahlenanteil 31 - oberhalb der HDG 19, 20 im sogenannten Dunkelbereich auf den Meßschirm 17 auftreffen; durch die obere Halblinse 22 des Korrektionselementes 16 wird jedoch der Strahl 29 mindestens auf oder unterhalb die HDG 19, 20 und somit in den Hellbereich des Lichtbündels 18 gelenkt.
The effect of the correction element 16 is described using three beams 28, 29 and 30 of the light bundle 18:
  • Near-axis rays (not shown) are almost unaffected by the non-color-corrected lens 15 and the correction element 16 and form the HDG 19, 20 of the light bundle 18 without color fringing red radiation component 31 and its blue radiation component 32. Without the correction element 16, the beam 29 - at least its red radiation component 31 - would strike the measuring screen 17 above the HDG 19, 20 in the so-called dark area; the upper half lens 22 of the correction element 16, however, directs the beam 29 at least onto or below the HDG 19, 20 and thus into the bright area of the light beam 18.

Den randnahen Strahl 30, der durch das Objektiv 15 am stärksten gebrochen und aufgefächert wird, lenkt die obere Halblinse 22 des Korrektionselementes 16 derart nach unten, daß deren roter Strahlenanteil 31 auch mindestens auf oder unterhalb die HDG 19, 20 in den Hellbereich des Lichtbündels 18 fällt.The upper half-lens 22 of the correction element 16 directs the beam 30 near the edge, which is most strongly refracted and fanned out, in such a way that its red radiation component 31 also at least on or below the HDG 19, 20 in the bright area of the light beam 18 falls.

Der achsferne Strahl 28 wird vom Objektiv 1 5 ebenfalls gebrochen und in seinen roten und blauen Strahlenanteil 31, 32 aufgefächert. Die Halblinse 23 des Korrektionselementes 16 lenkt den Strahl 28 mindestens so weit nach unten, daß auch dessen blauer Strahlenanteil 32 unter die HDG 19, 20 in den Hellbereich des Lichtbündels 18 fällt.The beam 28 remote from the axis is likewise refracted by the objective 15 and fanned out into its red and blue beam components 31, 32. The half-lens 23 of the correction element 16 directs the beam 28 down at least so far that its blue radiation component 32 also falls under the HDG 19, 20 in the bright area of the light beam 18.

Das Korrektionselement 16 lenkt mithin alle einen Farbsaum 21 (Figur 1) bildenden und dem Farbortsfehler unterliegenden Strahlen in den Hellbereich des Lichtbündels 18, wo sie sich vermischen.The correction element 16 therefore steers all of the color fringe 21 (FIG. 1) and the color locus rays subject to errors in the bright area of the light beam 18, where they mix.

Beim asymmetrischen Abblendlicht schließt der ansteigende Ast 20 der HDG mit dem horizontalen Ast - d.h. mit der Horizontalen 34 - einen Winkel von 15 Grad ein. Hierbei sind vorzugsweise die Mantellinien der Oberfläche derjenigen Linsenhälfte, die den ansteigenden Ast 20 bilden, um die Hälfte des Steigungswinkels (15 Grad) zur Horizontalen 34 geneigt.With asymmetrical low beam, the rising branch 20 of the HDG closes with the horizontal branch - i.e. with the horizontal 34 - an angle of 15 degrees. Here, the surface lines of the surface of that lens half, which form the rising branch 20, are preferably inclined by half the pitch angle (15 degrees) to the horizontal 34.

Das Korrektionselement 36 des zweiten Ausführungsbeispieles in Figur 3 zerlegt das aus dem Objektiv 15 austretende Lichtbündel, das die Grenzstrahlen 37, 38 symbolisieren, in viele verschiedengerichtete Teillichtbündel 39; diese überlagern sich gegenseitig und vereinigen sich auf dem Meßschirm 17 zu einem nichtfarbigen Lichtbündel.The correction element 36 of the second exemplary embodiment in FIG. 3 breaks down the light bundle emerging from the objective 15, which symbolize the boundary rays 37, 38, into many differently directed partial light bundles 39; these overlap one another and combine on the measuring screen 17 to form a non-colored light beam.

Das Korrektionselement 16' in Figur 4 hat eine im wesentlichen ebene, dem Objektiv 15 zugewandte ebene Seite 40 und eine Seite mit mehreren Zylinderlinsen 41, die sich gegenseitig berühren und deren Mantellinien der Oberflächen zueinander parallel und horizontal angeordnet sind.The correction element 16 'in FIG. 4 has an essentially flat side 40 facing the objective 15 and a side with a plurality of cylindrical lenses 41 which touch one another and whose surface lines of the surfaces are arranged parallel and horizontally to one another.

Des weiteren brauchen diese Teillinsen 41 nur teilweise die Nutzfläche des Korrektionselementes 16' zu bedecken.Furthermore, these partial lenses 41 need only partially cover the usable area of the correction element 16 '.

Außerdem kann in nichtdargestellter Weise das Objektiv und das Korrektionselement aus einem Stück hergestellt sein, wobei insbesondere die Seite des Objektivs mit dem Korrektionselement durch Pressen hergestellt ist.In addition, the objective and the correction element can be produced in one piece, in particular the side of the objective with the correction element being produced by pressing.

Claims (7)

1. Headlamp for dipped lights or fog lights for motor vehicles having a reflector (10) which generates a light beam by reflecting the rays of a light beam source (11), and having a mask (13), the edge (14) of which is arranged substantially horizontally and is arranged in the ray path of the light beam, and having an objective (1 5) which depicts the edge (14) on the road as a light/dark boundary (19, 20) of the light beam and having a correction element (16) arranged in the region of the objective (15) which deflects light beam rays (28 to 30) which form a colour fringe (21) located at the light/dark boundary and are subject to a local colour defect, into the light region of the light beam, characterized in that the correction element (16) comprises an upper lens (22) constructed as a cylindrical half-lens and a lower lens (23) constructed as a cylindrical half-lens and that both lenses refract the light rays (29, 30, 28) downwards, the refractive power of the upper lens (22) being more positive than the refractive power of the lower lens (23), so that the rays which form the colour fringe are deflected into the light region.
2. Headlamp according to Claim 1, the objective of which exhibits an optical axis (12) characterized in that the optical axis of the objective (15) and the optical axis of both lenses of the correcting element are identical with the optical axis (12) of the headlamp.
3. Headlamp according to Claim 2, characterized in that the directrices (24, 25) of the upper and lower lenses (22, 23) are parallel to each other and located at least partly horizontally and that the surfaces (24, 25) of both lenses meet at a junction point (26) which contains the optical axis (12) and lies in a plane (27) at right angles to the latter, the surfaces (24, 25) touching the plane (27) tangentially.
4. Headlamp according to Claim 3, the light/dark boundary of which exhibits a horizontal leg (19) and a leg (20) rising at 15 degrees relative to the latter characterized in that the directrices of the surface part of the upper lens which form the rising leg (20) are inclined to the horizontal (34) by half the slope angle (33) (15 degrees).
5. Headlamp according to Claim 1, characterized in that both the lenses consist of a plurality of mutually adjacent partial lenses (41) by which the light beam (37, 38) leaving the objective (15) is broken into partial light beams (39) which combine to form a non-coloured light beam.
6. Headlamp according to Claim 5, characterized in that the partial lenses (41) are not provided on the total effective surface of the correction element (16', 36).
7. Headlamp according to one of Claims 1 to 6, characterized in that the objective (15) and the correction element consist of a single piece and that, in particular, the side of the objective which exhibits the correction element is produced by pressing.
EP86901342A 1985-02-28 1986-02-18 Headlamp for dipped lights or fog lights for motor vehicles Expired EP0215035B1 (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE3507013 1985-02-28
DE19853507013 DE3507013A1 (en) 1985-02-28 1985-02-28 HEADLIGHTS FOR LOW BEAM OR FOG LIGHTS OF MOTOR VEHICLES

Publications (2)

Publication Number Publication Date
EP0215035A1 EP0215035A1 (en) 1987-03-25
EP0215035B1 true EP0215035B1 (en) 1989-12-20

Family

ID=6263762

Family Applications (1)

Application Number Title Priority Date Filing Date
EP86901342A Expired EP0215035B1 (en) 1985-02-28 1986-02-18 Headlamp for dipped lights or fog lights for motor vehicles

Country Status (5)

Country Link
US (1) US4771372A (en)
EP (1) EP0215035B1 (en)
JP (1) JPH07118204B2 (en)
DE (2) DE3507013A1 (en)
WO (1) WO1986005254A1 (en)

Families Citing this family (23)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4825343A (en) * 1985-12-27 1989-04-25 Ichikoh Industries Limited Projector type headlamp for vehicles
JPH0731921B2 (en) * 1988-01-20 1995-04-10 市光工業株式会社 Projector headlight
JPH0531766Y2 (en) * 1988-11-16 1993-08-16
JP2754690B2 (en) * 1989-03-31 1998-05-20 市光工業株式会社 Projector type headlight
JPH0817044B2 (en) * 1989-12-28 1996-02-21 株式会社小糸製作所 Vehicle headlights
US5068768A (en) * 1990-03-28 1991-11-26 Koito Manufacturing Co., Ltd. Variable light distribution type automobile lamp
US5138540A (en) * 1990-04-24 1992-08-11 Koito Manufacturing Co., Ltd. Variable light distribution type headlamp
JP2674913B2 (en) * 1991-11-18 1997-11-12 松下電器産業株式会社 Lighting equipment
JP2707391B2 (en) * 1992-09-01 1998-01-28 株式会社小糸製作所 Projector type headlight
US5938323A (en) * 1996-05-24 1999-08-17 Cooper Automotive Products, Inc. Projector light assembly
US9092841B2 (en) * 2004-06-09 2015-07-28 Cognex Technology And Investment Llc Method and apparatus for visual detection and inspection of objects
DE10333370A1 (en) 2003-07-23 2005-02-24 Schott Ag Lighting device, lens and lens manufacturing
DE102008021520B4 (en) 2008-04-30 2016-01-28 Automotive Lighting Reutlingen Gmbh Projection lens with color fringe correction for a vehicle headlight, projection module and vehicle headlight with such a projection lens
JP5445923B2 (en) * 2009-09-04 2014-03-19 スタンレー電気株式会社 Vehicle lighting
JP5516854B2 (en) * 2009-10-08 2014-06-11 スタンレー電気株式会社 Vehicle lighting
DE102011075510A1 (en) 2011-05-09 2012-11-15 Automotive Lighting Reutlingen Gmbh Light module for a motor vehicle headlight for generating a variable light distribution and motor vehicle headlights with such a light module
WO2015020555A1 (en) * 2013-08-08 2015-02-12 Sapt Georgiy Pavlovich Vehicle light
US9822942B2 (en) * 2013-11-12 2017-11-21 Ledil Oy Low-beam headlight element for a vehicle
JP2017004661A (en) 2015-06-08 2017-01-05 スタンレー電気株式会社 Vehicle lamp
DE102015015360A1 (en) * 2015-11-27 2017-06-01 GM Global Technology Operations LLC (n. d. Ges. d. Staates Delaware) Headlight for a motor vehicle
DE202016105880U1 (en) * 2016-10-19 2018-01-22 BÄ*RO GmbH & Co. KG lighting device
WO2023187505A1 (en) * 2022-03-07 2023-10-05 손성근 Lighting device for vehicle
KR102419832B1 (en) * 2022-03-07 2022-07-11 손성근 Automotive Lighting Device

Family Cites Families (11)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
BE429125A (en) * 1938-07-13 1938-08-31 Acec Low oil volume circuit breaker
FR865616A (en) * 1939-05-22 1941-05-29 Headlight for motor vehicles, with anti-diffusive, anti-glare and anti-fog action
US2578962A (en) * 1941-05-09 1951-12-18 Hartford Nat Bank & Trust Co Vehicle lamp with an optical system for uniform road lighting
US3291976A (en) * 1964-05-19 1966-12-13 Hughes Aircraft Co Illumination system
US3708221A (en) * 1970-04-02 1973-01-02 Anchor Hocking Corp Aspheric lens and method of manufacture
DE2636137A1 (en) * 1976-08-11 1978-02-16 Thorn Electrical Ind Ltd Colour fringing in lamps suppression method - uses mask between light source and projector lens to define cutoff in projected beam
DE2720956C2 (en) * 1977-05-10 1982-12-02 Bayerische Motoren Werke AG, 8000 München Motor vehicle headlights for low and high beam
IT1144157B (en) * 1981-03-09 1986-10-29 Wabco Westinghouse Comp Italia TRAFFIC SIGNALING DEVICE ESPECIALLY FOR RAILWAY SIGNALING
FR2503832B1 (en) * 1981-04-14 1986-04-04 Cibie Projecteurs MOTOR VEHICLE PROJECTOR WITH NARROW OUTPUT WINDOW
FR2550847B1 (en) * 1983-08-18 1988-07-01 Cibie Projecteurs ELLIPTICAL REFLECTOR WITH CUT BEAM FOR MOTOR VEHICLE
DE3417034A1 (en) * 1984-05-09 1985-11-14 Robert Bosch Gmbh, 7000 Stuttgart HEADLIGHTS, IN PARTICULAR LOW BEAM HEADLIGHTS, FOR MOTOR VEHICLES

Also Published As

Publication number Publication date
US4771372A (en) 1988-09-13
EP0215035A1 (en) 1987-03-25
DE3507013A1 (en) 1986-08-28
JPH07118204B2 (en) 1995-12-18
WO1986005254A1 (en) 1986-09-12
JPS62502577A (en) 1987-10-01
DE3667717D1 (en) 1990-01-25

Similar Documents

Publication Publication Date Title
EP0215035B1 (en) Headlamp for dipped lights or fog lights for motor vehicles
EP2799761B1 (en) Light module for a motor vehicle headlamp
DE3932273C2 (en) Vehicle headlights with a reflector with a multi-part reflection surface
DE3620789C2 (en) Dimmed automotive headlights
EP0890785A2 (en) Vehicle headlights
DE3430179A1 (en) HEADLIGHT WITH ELLIPTICAL REFLECTOR AND CUT-OFF LIGHT BAND FOR MOTOR VEHICLES
DE2216991A1 (en) POLARIZING HEADLIGHTS
DE2828856C2 (en) Headlights for automobiles
DE19814479A1 (en) Headlamp for cars according to projection principle
DE19519264A1 (en) Spotlamp for vehicle
DE3531223C2 (en)
DD213981A5 (en) HIDDEN HEADLIGHT FOR MOTOR VEHICLES
EP3839324A1 (en) Lighting device for a motor vehicle headlight
DE3334459C2 (en) Low beam headlight reflector for motor vehicles
DE68917555T2 (en) Motor vehicle headlights.
DE69707078T2 (en) Motor vehicle headlights with a light guide
DE68914474T2 (en) Vehicle headlights.
DE69012391T2 (en) Projection headlights for motor vehicles.
DE2753545A1 (en) MOTOR VEHICLE HEADLIGHTS WITH POLARIZED AND UNPOLARIZED LIGHT COMPONENT
DE112017006796T5 (en) TRANSPARENT PHOTOELITER WITH LIGHT SCREEN FUNCTION AND APPLICATION THEREOF
DE19602978A1 (en) Motor vehicle headlamp design
DE3417034A1 (en) HEADLIGHTS, IN PARTICULAR LOW BEAM HEADLIGHTS, FOR MOTOR VEHICLES
DE3019545C2 (en)
DE3530002C2 (en) Headlight unit with two reflectors for motor vehicles
DE3311762C2 (en)

Legal Events

Date Code Title Description
PUAI Public reference made under article 153(3) epc to a published international application that has entered the european phase

Free format text: ORIGINAL CODE: 0009012

17P Request for examination filed

Effective date: 19860920

AK Designated contracting states

Kind code of ref document: A1

Designated state(s): DE FR GB IT

17Q First examination report despatched

Effective date: 19880502

GRAA (expected) grant

Free format text: ORIGINAL CODE: 0009210

AK Designated contracting states

Kind code of ref document: B1

Designated state(s): DE FR GB IT

GBT Gb: translation of ep patent filed (gb section 77(6)(a)/1977)
REF Corresponds to:

Ref document number: 3667717

Country of ref document: DE

Date of ref document: 19900125

ET Fr: translation filed
ITF It: translation for a ep patent filed

Owner name: STUDIO JAUMANN

PLBE No opposition filed within time limit

Free format text: ORIGINAL CODE: 0009261

STAA Information on the status of an ep patent application or granted ep patent

Free format text: STATUS: NO OPPOSITION FILED WITHIN TIME LIMIT

26N No opposition filed
ITTA It: last paid annual fee
PGFP Annual fee paid to national office [announced via postgrant information from national office to epo]

Ref country code: GB

Payment date: 19970130

Year of fee payment: 12

PGFP Annual fee paid to national office [announced via postgrant information from national office to epo]

Ref country code: FR

Payment date: 19970221

Year of fee payment: 12

PGFP Annual fee paid to national office [announced via postgrant information from national office to epo]

Ref country code: DE

Payment date: 19970418

Year of fee payment: 12

PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

Ref country code: GB

Free format text: LAPSE BECAUSE OF NON-PAYMENT OF DUE FEES

Effective date: 19980218

PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

Ref country code: FR

Free format text: THE PATENT HAS BEEN ANNULLED BY A DECISION OF A NATIONAL AUTHORITY

Effective date: 19980228

GBPC Gb: european patent ceased through non-payment of renewal fee

Effective date: 19980218

PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

Ref country code: DE

Free format text: LAPSE BECAUSE OF NON-PAYMENT OF DUE FEES

Effective date: 19981103

REG Reference to a national code

Ref country code: FR

Ref legal event code: ST

PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

Ref country code: IT

Free format text: LAPSE BECAUSE OF NON-PAYMENT OF DUE FEES;WARNING: LAPSES OF ITALIAN PATENTS WITH EFFECTIVE DATE BEFORE 2007 MAY HAVE OCCURRED AT ANY TIME BEFORE 2007. THE CORRECT EFFECTIVE DATE MAY BE DIFFERENT FROM THE ONE RECORDED.

Effective date: 20050218