EP0791779A2 - Projecteur de croisement et de route pour véhicule automobile et lampe - Google Patents

Projecteur de croisement et de route pour véhicule automobile et lampe Download PDF

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Publication number
EP0791779A2
EP0791779A2 EP97102893A EP97102893A EP0791779A2 EP 0791779 A2 EP0791779 A2 EP 0791779A2 EP 97102893 A EP97102893 A EP 97102893A EP 97102893 A EP97102893 A EP 97102893A EP 0791779 A2 EP0791779 A2 EP 0791779A2
Authority
EP
European Patent Office
Prior art keywords
filament
main
helix
motor vehicle
reflector
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
EP97102893A
Other languages
German (de)
English (en)
Other versions
EP0791779B1 (fr
EP0791779A3 (fr
Inventor
Franz-Josef Kalze
Wolfgang Peitz
Rolf Kiesel
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.)
Osram GmbH
Original Assignee
Hella KGaA Huek and Co
Patent Treuhand Gesellschaft fuer Elektrische Gluehlampen mbH
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 Hella KGaA Huek and Co, Patent Treuhand Gesellschaft fuer Elektrische Gluehlampen mbH filed Critical Hella KGaA Huek and Co
Publication of EP0791779A2 publication Critical patent/EP0791779A2/fr
Publication of EP0791779A3 publication Critical patent/EP0791779A3/fr
Application granted granted Critical
Publication of EP0791779B1 publication Critical patent/EP0791779B1/fr
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

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Classifications

    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01K—ELECTRIC INCANDESCENT LAMPS
    • H01K9/00—Lamps having two or more incandescent bodies separately heated
    • H01K9/08—Lamps having two or more incandescent bodies separately heated to provide selectively different light effects, e.g. for automobile headlamp
    • 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
    • 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
    • F21S41/10—Illuminating devices specially adapted for vehicle exteriors, e.g. headlamps characterised by the light source
    • F21S41/14—Illuminating devices specially adapted for vehicle exteriors, e.g. headlamps characterised by the light source characterised by the type of light source
    • F21S41/162—Incandescent light sources, e.g. filament or halogen lamps
    • F21S41/164—Incandescent light sources, e.g. filament or halogen lamps having two or more filaments
    • 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
    • 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
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F21—LIGHTING
    • F21V—FUNCTIONAL FEATURES OR DETAILS OF LIGHTING DEVICES OR SYSTEMS THEREOF; STRUCTURAL COMBINATIONS OF LIGHTING DEVICES WITH OTHER ARTICLES, NOT OTHERWISE PROVIDED FOR
    • F21V7/00—Reflectors for light sources
    • F21V7/22—Reflectors for light sources characterised by materials, surface treatments or coatings, e.g. dichroic reflectors
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01J—ELECTRIC DISCHARGE TUBES OR DISCHARGE LAMPS
    • H01J61/00—Gas-discharge or vapour-discharge lamps
    • H01J61/02—Details
    • H01J61/025—Associated optical elements

Definitions

  • the invention is based on a motor vehicle headlight for low and high beam with reflector and lamp according to the preamble of claim 1. Furthermore, the invention also relates to a lamp suitable for headlights according to the preamble of claim 11.
  • the lamp is usually an incandescent halogen lamp.
  • H4 lamps normally uses so-called H4 lamps, as are known for example from DE-OS 26 51 643.
  • a low beam lamp and a high beam lamp are each axially arranged within the lamp bulb.
  • the low-beam light fixture is embedded in a anti-glare cap in such a way that the cap forms almost a half-shell, that is to say azimuthally spans an angle of almost 180 °.
  • the anti-dazzle device is pulled up at the base-side end of the dipped-beam lamp so that it shadows the high-beam lamp.
  • the anti-dazzle device is responsible for achieving the light-dark boundary by projecting its side edges on the reflector.
  • An asymmetrical illumination of the road is preferably sought, which is achieved in that one side of the anti-dazzle device is not pulled all the way up to the level of the dipped-beam lamp body, but ends approximately 15 ° below it, so that the angle spanned by the anti-dazzle device is only 165 ° ( DE-OS 15 89 242).
  • the high beam filament can also be a transverse filament instead of an axial filament.
  • the utilization of the reflector is restricted.
  • the loss as a result Shading by the anti-dazzle device is in the order of 40% of the total solid angle in the case of the dipped beam.
  • only about 40% of the solid angle can be used for the high beam, while about 60% of the solid angle contributes in an uncontrolled manner to the illumination of the near field by scattering the light of the high beam in the part of the reflector intended for the low beam.
  • the associated reflector is usually composed of two paraboloid parts, see, for example, DE-OS 27 20 956. However, in some cases, open-space reflectors are also used, such as those used, among others. are described in DE-OS 38 08 086 and EP-A 282 100.
  • This relates in particular to an optimal solution for the two functions low beam / high beam.
  • the concept according to the invention is also suitable for modern lighting functions which are of variable design and meet special requirements.
  • the motor vehicle headlight consists of a reflector which defines an optical axis and a two-filament light bulb arranged therein, the first filament, hereinafter referred to as the main filament, being arranged axially and being partially surrounded by a metallic cap which acts as a shatter.
  • the term axial in this context means that the helix lies within sufficiently narrow tolerances in the optical axis.
  • the main filament is also necessary, as is known per se, for the main filament to be outside the axis of the lamp bulb. More precisely, it is located in the reflector below the piston axis. This prevents glare from mirror images.
  • the reflector consists of two segments which have different contour profiles, the first segment being optically essentially assigned to the main filament, while the second segment is optically operated exclusively by the second filament, hereinafter referred to as the secondary filament.
  • At least the contour of the first segment is an open space contour, the principle of which is described, for example, in DE-OS 38 08 086 and EP-A 282 100. Reference is expressly made to these two writings.
  • the second segment of the reflector is also particularly preferably a free-space contour.
  • another contour for example a paraboloid contour, is also suitable.
  • the contour of the first segment is preferably optimized in such a way that it creates the light-dark boundary necessary for the dimming effect.
  • the basic principle is not to create the cut-off line by imaging the edges of a dimming cap or a diaphragm, but by appropriately superimposing a large number of images of the main filament that acts as a dipped beam.
  • the light-dark boundary is generated by the top edges of the helix images, which correspond to the bottom edge of the helix. However, it is not excluded to generate the cut-off line by separate means, such as an aperture.
  • the main coil is surrounded by the shading device in such a way that an azimuth angle of approximately 100 ° to 140 ° is shaded, as a result of which a shadow zone and an illumination zone are defined in relation to the main coil in the reflector.
  • the shader is, as is known from the technology of anti-dazzle devices, arranged in such a way that it is arranged in the reflector below the main helix. However, since it does not create the cut-off line, its positioning and dimensions are less critical than in the case of a dimming cap.
  • the secondary helix is arranged in the reflector just below the optical axis, the offset (based on the center of the secondary helix) being between 0.25 times and twice the diameter of the secondary helix. An offset of approximately 0.5 times the diameter is preferred.
  • the secondary helix can be arranged axially. However, the secondary helix is particularly preferably arranged transversely to the optical axis, because then the radiation characteristic of the secondary helix can be optimally matched to the two-part contour of the reflector. In particular, this means that only horizontal illuminant projections can be generated in the second reflector segment, which can be very easily converted into the desired light distribution for the remote lighting. In contrast, an axial secondary helix creates vertically lying helix patterns in the second reflector segment, which are less suitable for this classic application.
  • the spatial division of the two segments of the reflector is roughly matched to the two zones defined by the shader. This means that the first segment, which essentially processes the light from the main coil, is significantly larger than the second segment, which is served exclusively by the secondary coil.
  • both segments - for example, a circular reflector opening is assumed - cutouts that resemble pie pieces and together add up to a complete pie (corresponding to an azimuth angle of 360 °).
  • the second segment is spanned by an azimuth angle that corresponds approximately to the azimuth angle of the shader.
  • the azimuth angle of the second segment is preferably to be chosen to be somewhat smaller than that of the shading device, in particular up to 20% smaller, due to penumbra effects. It is typically about 10% smaller.
  • the shader is essentially located under the main helix. It is shaped so that the secondary helix is at least predominantly in the shadow zone. Its basic shape can be rectangular. However, it can also be chosen, for example, in a rough approximation as a spoon-like or coat-of-arms. In this case, it has a frontal tip, which is arranged between the secondary and main helix, two straight or curved side edges (approximately parallel to the main helix) and an end edge running transversely to the side edges or a blunt end tip.
  • the shading of the secondary helix is essentially caused by the frontal tip of the spoon or coat of arms. For this purpose, it can be bent up and / or extended.
  • the shading device can be an originally flat sheet metal part that is continuously concavely curved or in which flat sections are angled together. Such a shape is material-saving, easy to manufacture and low-reflection.
  • the sheet metal part can also be concavely curved, in particular it is then shaped like a spoon or crest.
  • the side edges of the coat of arms span the azimuth angle from 100 ° to 140 °.
  • the classic anti-glare cap uses an azimuth angle of 165 ° for asymmetrical dimming.
  • both side edges of the shader are clearly below the lower edge of the main helix.
  • the azimuthal distance to this horizontal plane is preferably at least 20 ° at both side edges.
  • the arrangement of the shader is advantageous symmetrical to this plane, so that the angular distance is the same on both sides.
  • one side edge lies exactly in the horizontal plane, while the other side edge has an azimuthal distance of 15 ° from it.
  • the radiation of the secondary filament falling into the shadow zone is used in a targeted manner with reflection on the second segment to generate an intense light bundle that can be used as an essential part of the remote lighting.
  • a part of the radiation reaches the auxiliary filament in the non-covered for the secondary filament first reflector segment.
  • This radiation does not provide any significant scattered radiation here, but is instead used in high beam operation as an additional contribution to side illumination.
  • the low beam is switched off.
  • the electrical power of the secondary helix is approximately the same as that of the main helix. she can also be slightly larger, generally up to 40%. With a typical power of the secondary filament of 60 W, the luminous flux is about 200 lm.
  • the main beam actually arises from the fact that the aforementioned light bundle and the radiation illuminating the sides, both of which are generated by the main beam, are superimposed on the low beam which is still in operation, ie the main and secondary filaments burn simultaneously in the high beam mode. For this reason, a relatively low power of the secondary helix is now sufficient, which only corresponds to between 20 and 80% of the power of the main helix. This fact underlines the high effectiveness of the headlight system presented here.
  • the lamp is advantageously a halogen incandescent lamp, since its dimensions are very small and its lifespan is very long.
  • the area share of the second segment assigned to the shadow zone in the total area of the reflector accounts for approximately 10 to 30%.
  • the useful luminous flux obtained from the second segment is preferably at least 80 lm.
  • a typical power of the main coil is 50 to 70 W.
  • connection between the electrical connections of the two luminous elements is switched in such a way that the main filament acts as a low beam, while the main beam is formed from the superimposition of the light emitted simultaneously by the main filament and the secondary filament.
  • the novel concept presented here can also be used for other applications, in particular for applications combined under the term AFS (Advanced Frontlighting Systems), which are the subject of the Eureka project 1403.
  • AFS Advanced Frontlighting Systems
  • the light distributions which can be achieved in this way are distinguished by the fact that, using improved technology, they are better and / or more flexibly adapted to different traffic situations than the light distributions for low and high beams defined in rigid standards.
  • One example is the adaptation of the cut-off line to the speed of travel.
  • the individual coils can be operated individually in the usual way or can also be connected together. In the latter case, three (or more) different operating modes can then be implemented.
  • new types of light distribution can be realized particularly well, which correspond to modern modes of operation such as "city light”, “country road light”, “motorway light”, “traffic sign lighting” and others.
  • Such an operation is explained for example in DE-OS 41 24 374.
  • the advantage of the technology presented here is in particular that it allows the number of headlights required for this to be kept low in modern lighting systems which offer a multitude of different functions.
  • Sliding screens and movable mirrors are suitable as further aids known per se for the purposes of AFS.
  • the cut-off lines can also be realized by means of shutters.
  • a horizontal plane can be defined which includes the main helix and which has its origin in the main helix and which is perpendicular to a plane including the two helices. It is advantageous if, based on this horizontal plane, both side edges of the shader are clearly below the lower edge of the main helix, preferably at least 20 ° angular distance from this horizontal plane on both sides.
  • the secondary helix is at an angle to the main helix and to the optical axis.
  • the secondary helix is not completely in the shadow zone of the shader. This applies in particular to a transverse or oblique arrangement. In general, however, at least 80%, preferably more than 95%, of the luminous surface of the secondary filament should lie in the shadow zone. In the case of a transverse secondary helix, a compromise must be made between a short helix, which is more favorable for shading reasons, and an elongated helix, which is more favorable for the light distribution of the main beam.
  • FIG. 1 schematically shows a headlight 1 with reflector 2 and halogen incandescent lamp 3.
  • the reflector defines an optical axis A.
  • the lamp 3 has a cylindrical bulb 4 which is squeezed on one side and carries a base 5 on the pinch.
  • the end of the piston 4 remote from the base is rounded and provided with an absorption coating 6 known per se.
  • a first filament forms the main filament 7 with an output of 50 W. It lies in the reference axis of the base, which coincides with the optical axis A of the headlight, being arranged somewhat below the bulb axis B (which is parallel to the optical axis) .
  • a second luminous element with an output of 25 W, which forms the secondary filament 8 is arranged transversely to the optical axis.
  • the secondary helix 8 is placed between the base 5 and the main helix 7 just below the optical axis.
  • the distance to the main coil 7 is 2 mm, the distance to the optical axis is 1 mm, based on the center of the coil. This offset against the optical axis corresponds to approximately 0.75 times the diameter of the secondary helix.
  • the coils 7 and 8 and a shading device 9 are usually fastened to power supply lines 17, which are fixed to a quartz beam 21.
  • the shader 9 is arranged horizontally below the main coil 7. It is a concave curve Sheet metal part, which is shaped like a crest with a blunt tip 10, two side edges 11 and an end edge 16.
  • the tip 10 of the shader 9 lies between the main and secondary helix. It is pulled up so far that it virtually completely shades the secondary helix 8, seen from the main helix 7.
  • the shader 9 is arranged symmetrically to the vertical. Nevertheless, an asymmetrical light distribution is achieved because this is a property of the reflector contour.
  • a constellation is actually possible here, in which the position of the two coils and the shader is coordinated with one another such that the width of the transverse helix 8 can be chosen to be smaller than the width of the shader, while at the same time the distance between the side edges of the shader and the main helix is chosen so that the azimuth angle ⁇ , seen from the main helix 7, causes the required shading of approximately 120 °.
  • the reflector contour shown schematically in FIGS. 1 and 2c consists of two segments 14 and 15, both of which are designed as open areas.
  • the light from the main coil 7 is processed exclusively by the first segment 14 arranged at the top in the headlight, while the second segment 15 (shown hatched), which is at the bottom, specifically processes only light from the secondary coil 8.
  • the secondary helix 8 is arranged in the headlight 1 so that it is just below the "focal volume" of the second reflector segment 15. (In the case of a paraboloid as the second reflector segment, the secondary helix is just below the focal point).
  • the two segments 14 and 15 coincide approximately with the zones 12, 13 generated by the shading device 9.
  • the azimuth angle ⁇ of the second segment spans approximately 110 °, that of the first segment the remaining azimuthal full angle (250 ° ).
  • the headlight has a rectangular basic shape instead of a circular shape, for example with a width of 13 cm and a height of 10 cm.
  • the low beam mode only the main filament 7 is illuminated and, accordingly, only the first segment 14 is illuminated.
  • the free-space contour of this first segment 14 produces the typical asymmetrical low-beam light distribution, which is shown in FIG. 3a, without additional aids such as a anti-glare cap. Lines of the same illuminance are shown. The sharp cut-off line is striking.
  • the measurement was carried out on a measuring wall at a distance of 25 m.
  • the detected horizontal angle is -30 ° to + 30 °, the vertical angle is -5 ° to + 5 °.
  • the resulting high beam which is shown in Fig. 3d, is the sum of these three individual components. What is striking is the very cheap, even high beam distribution, which gradually merges into the bright light beam in the center, and the high efficiency of the total luminous flux.
  • FIGS. 4a and 4b An arrangement with an axial secondary helix 18 is shown in FIGS. 4a and 4b. Otherwise, the same components correspond to the same reference numbers as in FIGS. 1 and 2.
  • the secondary helix 18 is arranged approximately 1 mm below the optical axis.
  • the distance between the mutually facing edges 19 and 20 of the main coil 7 and the secondary coil 18 is 1.5 mm.
  • the shader 9 is in an analogous manner as in the previous embodiment arranged.
  • the light distribution of such a lamp in a headlight similar to the first exemplary embodiment is shown by way of example in FIGS. 5a to 5d.
  • the switching of the filaments again corresponds to the operating modes discussed in connection with FIG. 3. Accordingly, the low beam distribution (FIG.
  • FIG. 5a which is again generated by the main coil in cooperation with the first reflector segment, is practically identical to that of FIG. 3a.
  • the secondary filament now generates a light beam with large apron lighting (FIG. 5b).
  • the side illumination is also less homogeneous and less wide (Fig. 5c).
  • the resulting high beam (addition of the components from FIGS. 5a to 5c) is still superior to that of a conventional H4 headlight, but achieves a lower maximum illuminance than in the first exemplary embodiment.
  • FIG. 6 An exemplary embodiment of a halogen incandescent lamp with a transverse secondary filament 8 is shown in FIG. 6.
  • a planar shading device 25 surrounds the axial main helix 7. It is composed of several sections 26 to 30 which connect to one another at an angle. Such a shading device is low in reflex and can be produced particularly easily from a rectangular sheet metal strip without any material waste.
  • the azimuth angle ⁇ is 110 ° here.
  • the resulting high beam which is similar to the light distribution shown in FIG. 3d, is the sum of these two individual components.

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  • Engineering & Computer Science (AREA)
  • General Engineering & Computer Science (AREA)
  • Non-Portable Lighting Devices Or Systems Thereof (AREA)
EP97102893A 1996-02-23 1997-02-21 Projecteur de croisement et de route pour véhicule automobile et lampe Expired - Lifetime EP0791779B1 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE19606876 1996-02-23
DE19606876 1996-02-23

Publications (3)

Publication Number Publication Date
EP0791779A2 true EP0791779A2 (fr) 1997-08-27
EP0791779A3 EP0791779A3 (fr) 1999-02-10
EP0791779B1 EP0791779B1 (fr) 2005-05-18

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EP97102893A Expired - Lifetime EP0791779B1 (fr) 1996-02-23 1997-02-21 Projecteur de croisement et de route pour véhicule automobile et lampe

Country Status (9)

Country Link
US (1) US5725298A (fr)
EP (1) EP0791779B1 (fr)
JP (1) JPH09237504A (fr)
KR (1) KR100450646B1 (fr)
CN (1) CN1084864C (fr)
AU (1) AU714638B2 (fr)
CA (1) CA2198193C (fr)
DE (1) DE59712309D1 (fr)
ES (1) ES2242972T3 (fr)

Cited By (11)

* Cited by examiner, † Cited by third party
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EP0817243A2 (fr) * 1996-06-06 1998-01-07 Honda Giken Kogyo Kabushiki Kaisha Ampoule de lampe pour véhicule
FR2782148A1 (fr) * 1998-08-10 2000-02-11 Valeo Vision Projecteur de vehicule automobile pourvu d'une lampe a deux filaments et d'un miroir perfectionnes
FR2782149A1 (fr) * 1998-08-10 2000-02-11 Valeo Vision Projecteur de vehicule automobile pourvu d'une lampe a deux filaments et d'un miroir perfectionnes
FR2794845A1 (fr) * 1999-06-08 2000-12-15 Valeo Vision Projecteur equipe d'une lampe a double source, notamment projecteur croisement route pour vehicule automobile
WO2003003410A1 (fr) 2001-06-29 2003-01-09 Koninklijke Philips Electronics N.V. Phare de vehicule a moteur a multiples filaments
EP1294013A2 (fr) * 2001-09-14 2003-03-19 Patent-Treuhand-Gesellschaft für elektrische Glühlampen mbH Lampe à incandescence pour projecteur de véhicule automobile
EP1353361A2 (fr) * 2002-04-08 2003-10-15 Patent-Treuhand-Gesellschaft für elektrische Glühlampen mbH Lampe à incandescence pour projecteur de véhicule automobile
EP1077347A3 (fr) * 1999-08-16 2006-01-18 Zizala Lichtsysteme GmbH Projecteur pour véhicule
WO2008077782A2 (fr) * 2006-12-21 2008-07-03 Osram Gesellschaft mit beschränkter Haftung Dispositif d'obscurcissement
EP1382900B2 (fr) † 2002-07-15 2009-10-21 Valeo Vision Projecteur de véhicule automobile avec lampe à deux filaments
DE102011005429A1 (de) 2011-03-11 2012-09-13 Osram Ag Leuchte oder Lampe mit Abschatteinheit

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JP2000100233A (ja) * 1998-09-25 2000-04-07 Ichikoh Ind Ltd 前照灯
DE19946297A1 (de) * 1999-09-28 2001-04-12 Philips Corp Intellectual Pty Glühlampe
JP2004006098A (ja) * 2002-05-31 2004-01-08 Sanyo Tekunika:Kk 車両用前照灯
CN1671990A (zh) * 2002-07-26 2005-09-21 皇家飞利浦电子股份有限公司 照明系统
US6955439B2 (en) * 2003-02-21 2005-10-18 Guide Corporation Dual filament static bending lamp
DE102004058750A1 (de) * 2004-12-06 2006-06-08 Patent-Treuhand-Gesellschaft für elektrische Glühlampen mbH Einseitig gesockelte Hochdruckentladungslampe
CZ302547B6 (cs) * 2005-07-04 2011-07-07 Visteon Global Technologies, Inc. Systém adaptivního predního osvetlení motorových vozidel
DE102005048444A1 (de) * 2005-10-07 2007-04-12 Patent-Treuhand-Gesellschaft für elektrische Glühlampen mbH Scheinwerferlampe
US7527395B2 (en) * 2007-02-01 2009-05-05 Ford Global Technologies, Llc Automotive head lamp louvre
US7722210B2 (en) * 2008-07-02 2010-05-25 Osram Sylvania Inc. Automotive lamp and reflector for low beam and advanced forward lighting system
CN101956955B (zh) * 2010-09-30 2014-02-19 海洋王照明科技股份有限公司 汽车前照灯以及用于汽车前照灯的反射器
CN102537844B (zh) * 2010-12-24 2014-03-19 海洋王照明科技股份有限公司 一种汽车前照灯反射器以及汽车前照灯
JP5713179B2 (ja) * 2010-12-28 2015-05-07 スタンレー電気株式会社 自動二輪車用プロジェクタ型ヘッドランプ
US20130155707A1 (en) * 2011-12-15 2013-06-20 Istvan Mudra Anisotropic incandescent light source
CN107004567B (zh) * 2014-12-12 2019-03-22 亮锐控股有限公司 用于车辆头灯的气体放电灯
FR3047541B1 (fr) * 2015-12-10 2019-10-04 Valeo Vision Module d'eclairage automobile avec fonctions code et route combinees et une source lumineuse ajustable
TWI615581B (zh) * 2017-07-14 2018-02-21 達運精密工業股份有限公司 光反射罩及具有光反射罩的照明裝置
CN107975764A (zh) * 2017-11-28 2018-05-01 华强方特（芜湖）文化科技有限公司 一种表演用多灯光同步调节装置
TWI651489B (zh) * 2018-01-29 2019-02-21 誠益光電科技股份有限公司 智慧頭燈

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GB2093579A (en) * 1981-02-21 1982-09-02 Bosch Gmbh Robert A headlight unit
EP0581679A1 (fr) * 1992-07-30 1994-02-02 Valeo Vision Projecteur de véhicule automobile comportant une lampe à deux filaments pour engendrer sélectivement un faisceau antibrouillard et un faisceau de route
EP0684420A1 (fr) * 1994-05-26 1995-11-29 Valeo Vision Projecteur comportant une lampe à deux filaments pour engendrer un faisceau coupé et un faisceau non coupé

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GB2093579A (en) * 1981-02-21 1982-09-02 Bosch Gmbh Robert A headlight unit
EP0581679A1 (fr) * 1992-07-30 1994-02-02 Valeo Vision Projecteur de véhicule automobile comportant une lampe à deux filaments pour engendrer sélectivement un faisceau antibrouillard et un faisceau de route
EP0684420A1 (fr) * 1994-05-26 1995-11-29 Valeo Vision Projecteur comportant une lampe à deux filaments pour engendrer un faisceau coupé et un faisceau non coupé

Cited By (16)

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Publication number Priority date Publication date Assignee Title
EP0817243A2 (fr) * 1996-06-06 1998-01-07 Honda Giken Kogyo Kabushiki Kaisha Ampoule de lampe pour véhicule
EP0817243B1 (fr) * 1996-06-06 2003-03-26 Honda Giken Kogyo Kabushiki Kaisha Ampoule de lampe pour véhicule
FR2782148A1 (fr) * 1998-08-10 2000-02-11 Valeo Vision Projecteur de vehicule automobile pourvu d'une lampe a deux filaments et d'un miroir perfectionnes
FR2782149A1 (fr) * 1998-08-10 2000-02-11 Valeo Vision Projecteur de vehicule automobile pourvu d'une lampe a deux filaments et d'un miroir perfectionnes
FR2794845A1 (fr) * 1999-06-08 2000-12-15 Valeo Vision Projecteur equipe d'une lampe a double source, notamment projecteur croisement route pour vehicule automobile
EP1077347A3 (fr) * 1999-08-16 2006-01-18 Zizala Lichtsysteme GmbH Projecteur pour véhicule
WO2003003410A1 (fr) 2001-06-29 2003-01-09 Koninklijke Philips Electronics N.V. Phare de vehicule a moteur a multiples filaments
US6709130B2 (en) * 2001-09-14 2004-03-23 Pätent-Treuhand-Gesellschaft fuer elektrische Gluehlampen mbH Incandescent lamp for motor vehicle headlamps
EP1294013A2 (fr) * 2001-09-14 2003-03-19 Patent-Treuhand-Gesellschaft für elektrische Glühlampen mbH Lampe à incandescence pour projecteur de véhicule automobile
EP1294013A3 (fr) * 2001-09-14 2006-05-03 Patent-Treuhand-Gesellschaft für elektrische Glühlampen mbH Lampe à incandescence pour projecteur de véhicule automobile
EP1353361A2 (fr) * 2002-04-08 2003-10-15 Patent-Treuhand-Gesellschaft für elektrische Glühlampen mbH Lampe à incandescence pour projecteur de véhicule automobile
EP1353361A3 (fr) * 2002-04-08 2005-11-23 Patent-Treuhand-Gesellschaft für elektrische Glühlampen mbH Lampe à incandescence pour projecteur de véhicule automobile
EP1382900B2 (fr) † 2002-07-15 2009-10-21 Valeo Vision Projecteur de véhicule automobile avec lampe à deux filaments
WO2008077782A2 (fr) * 2006-12-21 2008-07-03 Osram Gesellschaft mit beschränkter Haftung Dispositif d'obscurcissement
WO2008077782A3 (fr) * 2006-12-21 2009-02-05 Osram Gmbh Dispositif d'obscurcissement
DE102011005429A1 (de) 2011-03-11 2012-09-13 Osram Ag Leuchte oder Lampe mit Abschatteinheit

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US5725298A (en) 1998-03-10
KR970062473A (ko) 1997-09-12
ES2242972T3 (es) 2005-11-16
EP0791779B1 (fr) 2005-05-18
CA2198193C (fr) 2004-10-05
EP0791779A3 (fr) 1999-02-10
DE59712309D1 (de) 2005-06-23
CA2198193A1 (fr) 1997-08-24
JPH09237504A (ja) 1997-09-09
KR100450646B1 (ko) 2004-11-16
CN1160137A (zh) 1997-09-24
AU1484697A (en) 1997-08-28
CN1084864C (zh) 2002-05-15
AU714638B2 (en) 2000-01-06

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