EP0225313A2 - Feux pour véhicule - Google Patents

Feux pour véhicule Download PDF

Info

Publication number
EP0225313A2
EP0225313A2 EP86890322A EP86890322A EP0225313A2 EP 0225313 A2 EP0225313 A2 EP 0225313A2 EP 86890322 A EP86890322 A EP 86890322A EP 86890322 A EP86890322 A EP 86890322A EP 0225313 A2 EP0225313 A2 EP 0225313A2
Authority
EP
European Patent Office
Prior art keywords
light source
projection lens
reflector
light
vehicle lamp
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
EP86890322A
Other languages
German (de)
English (en)
Other versions
EP0225313A3 (en
EP0225313B1 (fr
Inventor
Josef Kanzler
Gerald Bachtrod
Alois Ing. Noisser
Ernst Gugerell
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.)
ZKW Group GmbH
Original Assignee
Zizala Lichtsysteme GmbH
Metallwarenfabrik Karl Zizala
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 Zizala Lichtsysteme GmbH, Metallwarenfabrik Karl Zizala filed Critical Zizala Lichtsysteme GmbH
Publication of EP0225313A2 publication Critical patent/EP0225313A2/fr
Publication of EP0225313A3 publication Critical patent/EP0225313A3/de
Application granted granted Critical
Publication of EP0225313B1 publication Critical patent/EP0225313B1/fr
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
    • F21S41/63—Illuminating devices specially adapted for vehicle exteriors, e.g. headlamps characterised by a variable light distribution by acting on refractors, filters or transparent cover plates
    • F21S41/635—Illuminating devices specially adapted for vehicle exteriors, e.g. headlamps characterised by a variable light distribution by acting on refractors, filters or transparent cover plates by moving refractors, filters or transparent cover plates
    • 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
    • F21S41/26—Elongated lenses
    • 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
    • F21S41/30—Illuminating devices specially adapted for vehicle exteriors, e.g. headlamps characterised by reflectors
    • F21S41/32—Optical layout thereof
    • F21S41/33—Multi-surface reflectors, e.g. reflectors with facets or reflectors with portions of different curvature
    • F21S41/334—Multi-surface reflectors, e.g. reflectors with facets or reflectors with portions of different curvature the reflector consisting of patch like sectors
    • F21S41/336—Multi-surface reflectors, e.g. reflectors with facets or reflectors with portions of different curvature the reflector consisting of patch like sectors with discontinuity at the junction between adjacent areas
    • 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
    • F21S41/40—Illuminating devices specially adapted for vehicle exteriors, e.g. headlamps characterised by screens, non-reflecting members, light-shielding members or fixed shades
    • F21S41/43—Illuminating devices specially adapted for vehicle exteriors, e.g. headlamps characterised by screens, non-reflecting members, light-shielding members or fixed shades characterised by the shape thereof

Definitions

  • the invention relates to a vehicle lamp, in particular a vehicle headlight, with a radiation guide system in which a projection lens, which is arranged independently of the light source and at least essentially detects the amount of light emerging from the lamp, is optionally followed only by a cover plate and optionally on the side of the light source facing away from the projection lens Reflector is provided.
  • a projection lens which is arranged independently of the light source and at least essentially detects the amount of light emerging from the lamp, is optionally followed only by a cover plate and optionally on the side of the light source facing away from the projection lens Reflector is provided.
  • the area of the driver of a motor vehicle is very wide and relatively low. Only a certain area of this very space can be illuminated, since oncoming traffic must not be dazzled.
  • the classic headlight system which in addition to the light source consists of two optical systems, namely a parabolic reflector (homofocal reflector) and the cover plate, is only suitable for this purpose with certain restrictions, since the corrugation of the cover plate (i.e. its division into individual lens groups) is the only means of Achieving a desired light distribution offers, if one refrains from the design of the reflector as a rectangular reflector. It should also be borne in mind here that the cover plate must often be skewed to the optical axis of the headlamp for structural reasons.
  • PE stands for polyellipsoid
  • DE for three-dimensional ellipsoid
  • these systems are constructed analogously to a slide projector, in which the object (the slide) is imaged via a lens, which is essentially a converging lens. Accordingly, the PE and DE systems also have a converging lens which is arranged between the light source and the cover plate.
  • these systems are with one special ellipsoid reflector and an aperture, which is arranged in the area of the second focal point of the ellipsoid and is depicted as a light / dark boundary.
  • the PE and DE systems have so far, however, in practice, despite their optical advantages, not shown to be reliable, with the overheating and adjustment problem in particular playing an important role.
  • the curved object diaphragm - also called the Petzval bowl - has to be adjusted precisely and absorbs a large amount of light energy, which is lost for the intended purpose, in the form of thermal energy, which leads to the deformation and misalignment of the diaphragm and to overheating of the headlamp .
  • problems arise due to the fact that the diaphragm edge, due to its arrangement in the region of the second focal point of the ellipsoid reflector, produces strong color fringes at the light / dark boundary.
  • DE-OS 24 61 918 relates to a headlamp system with reflector, projection lens and diaphragm arranged between them, the described and illustrated projection lenses being designed in a conventional manner.
  • FIG. 5 shows an embodiment without a drawn-in diaphragm, in which an unsharp light / dark boundary is formed by the fact that an elliptical concave mirror section is provided instead of a reflector symmetrical to the light source, the edge of which parallel to the filament is depicted as a light / dark boundary.
  • DE-OS 32 41 826 relates to the known PE system with an elliptical reflector with two focal points (F1, F2) and a converging lens, with a radiation diaphragm being arranged in the second focal point F2 and the focal point of the converging lens also coinciding with F2. According to this document, it is a matter of determining critical zones on the elliptical reflector and not re-treating them by surface treatment to make it reflective or less reflective, or to change its shape.
  • FR-A 2501333 relates to an optical system which is completely different from the objective optical system, where only a cover disk may follow the projection lens, so that the projection lens produces the imaging pattern.
  • these pure diffuser lenses are followed by diaphragm edges and deflecting mirrors, which redirect the light towards the reflector, from where it is only reflected in the direction of the cover plate. Accordingly, a curvature of the projection lenses that is different in sections with respect to the imaging pattern is also not provided; they do not project the light outside the headlight.
  • GB-PS 1 570 805 relates to a headlamp with a concave reflector which is designed to be translucent in the horizontal plane, so that light which is not deflected by the reflector forms a light beam which is inclined with respect to the main light beam.
  • the reflector is divided.
  • incandescent lamps can be provided in which a biconvex lens section is provided on a conventional bulb as a front part for detecting the close range of the optical axis.
  • These front parts capture only a part of the emitted light and, moreover, have two differently curved convex areas, which, however, are curved in the same way.
  • the lens-like configurations of the cover plate which are also possible, only essentially capture the near region of the optical axis.
  • DE-OS 32 00 796 relates to the construction of a dimming cap for dipped-beam headlamps, in which a conventional reflector (in particular a parabolic reflector), a lamp and this dimming cap is provided between the lamp and the reflector.
  • the anti-dazzle device has a surface concave towards the light source, in which areas of different curvature adjoin one another.
  • the vehicle lamp according to the invention is primarily characterized in that a projection lens provided in sections with different surface curvatures, which is delimited in particular in the direction of the light source by a curved surface, is arranged so as to be adjustable without the interposition of a diaphragm between the light source and the projection lens and preferably relative to the light source.
  • the desired light distribution is achieved by the corresponding section curvature of the projection lens surfaces.
  • the projection lens is in view of the desired imaging pattern, i.e. corrected the shape of the generated light spot and its luminance distribution.
  • the projection lens is advantageously also matched to the entry of light. The accuracy that can be achieved by casting processes is sufficient.
  • Surface curvature which differs in sections thus means that curvatures which differ from one another are present on at least one of the surfaces which form the surface of the projection lens.
  • a significant advantage in achieving the desired imaging pattern is achieved if the projection lens has flat areas for beam bundling by total reflection.
  • edge regions of the projection lens are advantageously covered opaque. This can be done cheaply by the projection lens holder or by the lamp mask itself, i.e. through the outer edge of the lamp.
  • a cover plate is not absolutely necessary, so that the projection lens then forms the face of the lamp.
  • a cover plate can, however, be advantageous in certain cases.
  • the projection lens is preferably adjustable for adjustment together with and / or relative to its holder with respect to the light source. No optical accuracy is required here - as is essential for a diaphragm. This is particularly a spatial adjustability; depending on the design, a tilt, swivel or displacement adjustment may be sufficient.
  • a reflector which can be used particularly advantageously is characterized in that in the vicinity of the light source, in particular in the region of the strongest reflector curvature, the reflector has at least two independently curved sections, preferably arranged symmetrically with respect to the light source, and arched away from the light source or is formed from these sections .
  • These sections advantageously have spherical surface profiles, preferably of the same radius, and are advantageously arranged abutting one another, wherein a butt edge is preferably formed, which is cut by the optical axis of the vehicle lamp.
  • light sources in particular are used in such a way that their filament runs essentially at right angles to the optical axis of the lamp, preferably at least in a projection parallel to a light exit boundary edge.
  • the filament advantageously runs parallel to the road at a right angle to the optical axis of the lamp.
  • an H 1 incandescent lamp which has an axial filament is used from the side or an H 3 incandescent lamp which has a transverse filament is used from above or below.
  • the luminaire according to the invention is particularly advantageously designed with flattened reflector regions adjoining a curved reflector region upwards and downwards, in particular as a rectangular luminaire.
  • the reflector can also be provided with steps outside the area of the curved sections.
  • the vehicle lamp according to the invention is designed as a double lamp with independent light sources, which are preferably used on opposite sides of the double lamp.
  • At least one shield can be provided in the region of the light source in order to avoid the forwarding of reflections occurring at the light source bulb and / or base to the projection lens.
  • the targeted beam bundling makes it possible to use the vehicle lamp according to the invention for all matters relating to vehicle exterior lighting, in particular for low-beam, fog or high-beam headlamps, but also for position or brake lights or reversing lights.
  • FIG. 1 shows a vertical section
  • FIG. 2 shows a horizontal section through a headlight according to the invention
  • FIG. 3 shows a horizontal section through a variant of the headlight according to FIG. 1 and Figure 2.
  • a rectangular spotlight with a bracket 1, a reflector 2, a light bulb 3 and a cover plate 4 is shown. It can be seen that the cover plate 4 is arranged skew to the optical axis 5 of the headlight, i.e. it is inclined with respect to both the vertical and the horizontal reflector plane of symmetry.
  • the incandescent lamp 3 is inserted from below, its filament 6 is horizontal and in the horizontal projection parallel to the upper and lower light exit limiting edge of the headlight.
  • the reflector 2 is a parabolic reflector which, in the region of its greatest curvature, has two sections 7, 7 'arranged symmetrically to the optical axis 5 and curved away from the incandescent lamp 3, the abutting edge 8 of which is cut by the optical axis 5.
  • the curved sections 7, 7 ⁇ have a spherical surface profile with the same radii.
  • a projection lens 9 is provided in a lens holder 10 between the incandescent lamp 3 and the cover plate 4.
  • the projection lens 9 is a flat wedge lens which is curved away from the incandescent lamp 3 both on the light entry side and on the light exit side; it therefore fulfills the function of a combined collecting and scattering lens.
  • the light entry side curvature is a cylindrical surface, the light exit side curvature a corrected toroidal surface.
  • Fig. 1 it can be seen that the lower flat area of the projection lens 9 is shorter than the upper flat area.
  • the flat areas of the projection lens 9 serve, among other things, to bundle the rays through total reflection.
  • the lens holder 10 is provided such that it can be adjusted relative to the incandescent lamp 3, it being shown that the lens holder is firmly connected to the reflector body 2 at the top and a screw adjustment with a compression spring 11 is provided at the bottom.
  • the projection lens 9 is arranged twice asymmetrically with respect to the optical axis 5.
  • a simple asymmetrical or symmetrical arrangement is also possible.
  • the reflector 2 is provided with an additional step 12 outside the curved sections 7,7 ⁇ .
  • the stage 12 can also be arranged on both sides of the incandescent lamp 3 and is used to bundle edge rays in preferred areas.
  • Areas of the projection lens 9 can optionally be mirrored, in particular the upper and lower flat areas. This also applies to parts of the holder 10, in particular in the area where bundled light strikes from the curved sections 7, 7 'of the reflector 2.
  • the cover disks if they are used, can also have a corresponding corrugation.
  • a shield 13 which surrounds the lamp shaft and the lower part of the lamp bulb approximately semicircularly, but can also encompass it completely, particularly in the bulb region.
  • This shielding can be used to prevent reflections that occur on the lamp bulb (for example, due to the retraction of the H3 lamp shown) and / or on the lamp base appear as second and third focal points of the lamp and are emitted to the reflection lens.
  • the respectively desired light distribution and luminance can thus be achieved without the arrangement of heat-sensitive light / dark diaphragms; furthermore, the manufacture of a reflector designed according to the invention is far simpler than that of a PE or DE reflector.
  • the adjustment of the optical system is also much less complex and susceptible to that with the PE or DE systems.

Landscapes

  • Engineering & Computer Science (AREA)
  • General Engineering & Computer Science (AREA)
  • Non-Portable Lighting Devices Or Systems Thereof (AREA)
  • Glass Compositions (AREA)
  • Inorganic Insulating Materials (AREA)
  • Lighting Device Outwards From Vehicle And Optical Signal (AREA)
EP86890322A 1985-12-04 1986-11-19 Feux pour véhicule Expired - Lifetime EP0225313B1 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
AT0352485A AT396675B (de) 1985-12-04 1985-12-04 Fahrzeugleuchte
AT3524/85 1985-12-04

Publications (3)

Publication Number Publication Date
EP0225313A2 true EP0225313A2 (fr) 1987-06-10
EP0225313A3 EP0225313A3 (en) 1989-05-03
EP0225313B1 EP0225313B1 (fr) 1995-02-08

Family

ID=3551702

Family Applications (1)

Application Number Title Priority Date Filing Date
EP86890322A Expired - Lifetime EP0225313B1 (fr) 1985-12-04 1986-11-19 Feux pour véhicule

Country Status (6)

Country Link
US (1) US4811174A (fr)
EP (1) EP0225313B1 (fr)
JP (1) JP2548150B2 (fr)
AT (2) AT396675B (fr)
DE (1) DE3650229D1 (fr)
ES (1) ES2068177T3 (fr)

Cited By (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0623780A3 (fr) * 1993-05-03 1995-01-25 Zizala Lichtsysteme Gmbh Lentille de projection pour phase de véhicule.
EP0371511B1 (fr) * 1988-11-30 1995-06-07 Ichikoh Industries Limited Phare pour véhicules automobiles
EP0725249A1 (fr) * 1995-01-31 1996-08-07 Nippondenso Co., Ltd. Dispositif d'éclairage
FR2868511A1 (fr) * 2004-03-31 2005-10-07 Koito Mfg Co Ltd Phare de vehicule a ampoule decalee
AT500415A1 (de) * 2001-03-13 2005-12-15 Zizala Lichtsysteme Gmbh Fahrzeugscheinwerfer

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FR2621679B1 (fr) * 1987-10-13 1990-02-09 Cibie Projecteurs Projecteur de route de faible hauteur a grande recuperation de flux pour vehicule automobile
JPH025301A (ja) * 1988-06-24 1990-01-10 Ichikoh Ind Ltd 自動車用前照灯
DE68917198T2 (de) * 1988-05-09 1994-11-17 Ichiko Industries Ltd Scheinwerfer für Kraftfahrzeuge.
GB8824206D0 (en) * 1988-10-15 1988-11-23 Carello Lighting Plc Motor vehicle headlamp
JPH0515681Y2 (fr) * 1989-02-08 1993-04-26
US5081564A (en) * 1989-07-11 1992-01-14 Koito Manufacturing Co., Ltd. Vehicular lighting device
DE3933540C2 (de) * 1989-10-07 1999-04-01 Bosch Gmbh Robert Scheinwerfer mit veränderbarer Lage einer darin angeordneten Lichtquelle für Kraftfahrzeuge
JPH076564Y2 (ja) * 1990-04-19 1995-02-15 株式会社小糸製作所 配光可変型自動車用前照灯
JP2787744B2 (ja) * 1992-09-04 1998-08-20 株式会社小糸製作所 車輌用灯具の反射鏡
US5795057A (en) * 1995-04-17 1998-08-18 Dedo Weigert Film Gmbh Asymmetrical lamp
US5915831A (en) * 1996-11-05 1999-06-29 Autosystems Manufacturing, Inc. Internal aim headlamp assembly
AUPS198202A0 (en) * 2002-04-26 2002-06-06 Ferguson Lighting Pty Limited Lighting apparatus
JP4379673B2 (ja) * 2002-10-07 2009-12-09 株式会社小糸製作所 車両用前照灯
US7021796B2 (en) * 2003-01-13 2006-04-04 The Boeing Company Light engine apparatus and method
US20050030759A1 (en) * 2003-08-04 2005-02-10 Guide Corporation Bifocal hyperbolic catadioptric collection system for an automotive lamp
JP4536479B2 (ja) * 2003-12-02 2010-09-01 株式会社小糸製作所 車両用前照灯
DE102004001486B4 (de) * 2004-01-09 2010-01-28 Koito Manufacturing Co., Ltd. Fahrzeugscheinwerfer
JP2006049190A (ja) * 2004-08-06 2006-02-16 Koito Mfg Co Ltd 車両用前照灯
US20060209556A1 (en) * 2005-03-15 2006-09-21 Koito Manufacturing Co., Ltd. Vehicle lamp
FR2884899B1 (fr) * 2005-04-21 2007-06-15 Valeo Vision Sa Module d'eclairage donnant un faisceau lumineux avec coupure pour projecteur de vehicule automobile, et projecteur comprenant un tel module
JP2007030592A (ja) * 2005-07-25 2007-02-08 Yamaha Motor Co Ltd 車両用ライト装置及び該ライト装置を備えた自動二輪車
FR2894647B1 (fr) * 2005-12-09 2010-03-12 Holophane Sa Projecteur de vehicule automobile
JP4697969B2 (ja) * 2006-03-29 2011-06-08 スタンレー電気株式会社 照明装置
US7648257B2 (en) * 2006-04-21 2010-01-19 Cree, Inc. Light emitting diode packages
US7264387B1 (en) 2006-05-08 2007-09-04 Visteon Global Technologies, Inc. Reduced depth projector headlamp assembly
US7810972B2 (en) * 2006-10-13 2010-10-12 Visteon Global Technologies, Inc. Headlamp assembly having an adjustable light beam direction
US20080247188A1 (en) * 2007-04-04 2008-10-09 Magna International Inc. Complex projector lens for LED headlamp
JP4697215B2 (ja) * 2007-11-20 2011-06-08 市光工業株式会社 車両用灯具
JP5167474B2 (ja) * 2008-07-01 2013-03-21 スタンレー電気株式会社 プロジェクタ型灯具
FR2936587B1 (fr) * 2008-09-30 2014-04-25 Valeo Vision Sas "module optique comportant un element de deviation optique"
JP2014089941A (ja) 2012-10-03 2014-05-15 Koito Mfg Co Ltd 車両用灯具
WO2016198329A1 (fr) * 2015-06-09 2016-12-15 Lumileds Holding B.V. Module de phare

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FR2516203B1 (fr) * 1981-11-12 1986-03-14 Cibie Projecteurs Projecteur de vehicule automobile
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IT8352827V0 (it) * 1983-01-11 1983-01-11 Fiat Auto Spa Fanale di segnalazione a luce colorata per autoveicoli
JPS59156302U (ja) * 1983-04-07 1984-10-20 市光工業株式会社 自動車用灯具
EP0125353B1 (fr) * 1983-05-10 1989-10-11 Corning Glass Works Projecteur de véhicule automobile avec réflecteur formant optique
FR2566721B1 (fr) * 1984-07-02 1987-01-02 Cibie Projecteurs Procede de fabrication et de reglage, en orientation, d'un projecteur de vehicule automobile; projecteur de vehicule automobile, pour la mise en oeuvre de ce procede
DE3529546C1 (de) * 1985-08-17 1987-02-05 Hella Kg Hueck & Co Abgeblendeter Fahrzeugscheinwerfer mit einem ellipsoidfoermigen Reflektor

Cited By (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0371511B1 (fr) * 1988-11-30 1995-06-07 Ichikoh Industries Limited Phare pour véhicules automobiles
EP0623780A3 (fr) * 1993-05-03 1995-01-25 Zizala Lichtsysteme Gmbh Lentille de projection pour phase de véhicule.
EP0725249A1 (fr) * 1995-01-31 1996-08-07 Nippondenso Co., Ltd. Dispositif d'éclairage
US5692823A (en) * 1995-01-31 1997-12-02 Nippondenso Co., Ltd. Illuminating device
AT500415A1 (de) * 2001-03-13 2005-12-15 Zizala Lichtsysteme Gmbh Fahrzeugscheinwerfer
AT500415B1 (de) * 2001-03-13 2006-04-15 Zizala Lichtsysteme Gmbh Fahrzeugscheinwerfer
FR2868511A1 (fr) * 2004-03-31 2005-10-07 Koito Mfg Co Ltd Phare de vehicule a ampoule decalee

Also Published As

Publication number Publication date
EP0225313A3 (en) 1989-05-03
US4811174A (en) 1989-03-07
EP0225313B1 (fr) 1995-02-08
DE3650229D1 (de) 1995-03-23
ES2068177T3 (es) 1995-04-16
ATE118264T1 (de) 1995-02-15
JP2548150B2 (ja) 1996-10-30
JPS6366801A (ja) 1988-03-25
AT396675B (de) 1993-11-25
ATA352485A (de) 1987-07-15

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