EP0791779B1 - Kraftfahrzeugscheinwerfer für Abblend- und Fernlicht und Lampe - Google Patents
Kraftfahrzeugscheinwerfer für Abblend- und Fernlicht und Lampe Download PDFInfo
- Publication number
- EP0791779B1 EP0791779B1 EP97102893A EP97102893A EP0791779B1 EP 0791779 B1 EP0791779 B1 EP 0791779B1 EP 97102893 A EP97102893 A EP 97102893A EP 97102893 A EP97102893 A EP 97102893A EP 0791779 B1 EP0791779 B1 EP 0791779B1
- Authority
- EP
- European Patent Office
- Prior art keywords
- filament
- main
- reflector
- motor vehicle
- segment
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Expired - Lifetime
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Classifications
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- 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
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- 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
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- 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
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- 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
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- 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
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- 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
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- 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 suitable for a motor vehicle headlights Halogen incandescent lamp according to the preamble of claim 1. Furthermore, the invention relates also a headlight for dipped and high beam with reflector and lamp according to the Preamble of claim 5.
- EP-A 684,420 shows a halogen bulb with two axis-parallel Luminaires and a reflector with at least partial open space contour.
- H4 lamps as for example from the DE-OS 26 51 643 are known. It is within the lamp envelope a Dipped beam and a high beam headlamp each arranged axially. Of the Dipped beam is embedded in a dimming cap so that the cap is almost forms a half shell, so azimuthal spans an angle of almost 180 °. The The anti-dazzle device is pulled up at the socket-side end of the low-beam headlight that it shades the high beam light body.
- the dimming is through Projecting their side edges on the reflector to achieve the cut-off line responsible.
- an asymmetrical illumination of the road is sought, the is achieved in that the one side of the dimming not quite up to the level of the Low beam is raised, but ends about 15 ° below, so that the of the dipped cap spanned angle is only 165 ° (DE-OS 15 89 242).
- the main beam can also be a transverse spiral instead of an axial spiral.
- the utilization of the reflector is limited.
- the loss due Shading by the dimming cap is on the order of 40% of the total solid angle in the case of the dipped beam. Reverse use only about 40% of the solid angle for the high beam, while about 60% of the solid angle uncontrolled to illuminate the Contribute near field by the light of the high beam in the for the low beam imaginary part of the reflector is scattered.
- the associated reflector is usually composed of two paraboloid parts, see, for example, DE-OS 27 20 956. Isolated, however, are also Open space reflectors used as u.a. in DE-OS 38 08 086 and EP-A 282 100 are described.
- the inventive concept but also for modern Lighting functions that are designed variably and meet special requirements.
- the motor vehicle headlight according to the invention consists of a reflector, defining an optical axis, and a two filament incandescent lamp disposed therein, wherein the first filament, in the following main filament called axially arranged and acting as a shading metallic Cap is partially surrounded.
- the term axial means in this Context that the helix within sufficiently close tolerances in the optical axis is located.
- the Main coil is located outside the axis of the lamp bulb. More accurate said, it is located in the reflector below the piston axis. This prevents glare from mirror images.
- the reflector consists of two segments, the different contours have, wherein the first segment optically substantially the Main coil is assigned, while the second segment optically exclusively from the second luminous element, hereinafter referred to as secondary filament, is served.
- At least the contour of the first segment is one Open space contour, the principle of which, for example, in DE-OS 38 08 086 and EP-A 282 100 is described. These two writings are explicit Referenced.
- the second segment of the reflector is an open space contour.
- the contour of the first segment is preferably optimized so that It creates the necessary for the dimming effect light-dark boundary.
- the basic principle is that the cut-off line is not covered by illustration to create the edges of a dimming cap or aperture but by a suitable superposition of a variety of images the main coil acting as dipped beam.
- the light-dark border is generated by the upper edges of the spiral images, the lower edge correspond to the helix.
- the cut-off line by separate means, such as an aperture.
- the main coil is surrounded by the shader so that an azimuth angle is shaded from about 100 ° to 140 °, whereby in relation to the Main coil in the reflector a shadow zone and a lighting zone is defined.
- the Abschatter is there, as of the technology of the Abblendkappen known, arranged so that it is in the reflector below the Main coil is arranged. But he does not have the cut-off line its positioning and dimensioning is less critical than in Trap of a dimming cap.
- the secondary spiral is arranged in the reflector just below the optical axis, where the offset (relative to the middle of the secondary spiral) between 0.25 times and twice the diameter of the auxiliary spiral is.
- an offset is about 0.5 times Diameter.
- the auxiliary spiral can be arranged axially.
- the secondary spiral is arranged transversely to the optical axis, because then the radiation characteristic of the secondary spiral optimal can be matched to the two-part contour of the reflector. Especially This allows only horizontal luminaire projections generate in the second reflector segment, which are very good in the desired Let the light distribution for the remote lighting be implemented.
- the spatial distribution of the two segments of the reflector is approximately on the two zones defined by the shader are tuned. It means that the first segment, which essentially processes the light from the main coil, is significantly larger than that served exclusively by the auxiliary spiral second segment.
- both segments are exemplary a circular reflector opening is assumed - cutouts, the Pieces of cake are similar and together form the whole pie (corresponding to an azimuth angle of 360 °).
- the second segment is spanned by an azimuth angle, which is approximately the azimuth angle of Abschatters corresponds.
- the azimuth angle of second segment because of partial shade effects slightly smaller than that of the shading to choose, in particular up to 20% smaller. He is typical, for example 10% smaller.
- the shading is arranged substantially below the main coil. He is formed so that the secondary spiral at least predominantly in the Shadow zone lies. Its basic shape can be rectangular. she can but also, for example, in a rough approximation as spoon-like or coat-like to get voted. In this case, he owns a frontal tip, which between Secondary and main spiral is arranged, two straight or curved Margins (roughly parallel to the main helix) and a transverse to the side edges extending end edge or a blunt end tip.
- the shading of the secondary spiral is essentially by the Frontal tip of the spoon or coat of arms causes. She can to this Purpose be upended and / or extended.
- the shading device may be an originally planar sheet metal part that is continuous is curved concave or at the plane sections angled to each other are set. Such a form is material-saving, easy to manufacture and low-reflex.
- the sheet metal part can also be curved concave in particular, it is then spoon-shaped or shaped like a crest.
- the falling in the shadow zone Radiation of the secondary coil targeted under reflection on the second segment to produce a usable as an essential part of the long-distance lighting used in intense light beam.
- This arrives Part of the radiation of the secondary spiral also in that for the Mau Listel not covered first reflector segment.
- This radiation does not deliver here significant stray radiation, but rather in high beam operation used as an additional contribution to the side illumination.
- the low beam is switched off.
- the electric power the auxiliary spiral about the same size as that of the main coil. she can also be a little bit larger, generally up to 40%. In a typical Power of the auxiliary coil of 60 W, the luminous flux is about 200 lm.
- the lamp is a halogen incandescent lamp, since their dimensions are very small and their lifespan is very high.
- the area proportion of the shadow zone assigned second segment of the total area of the reflector about 10 to 30%.
- the useful luminous flux obtained from the second segment is preferred 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 bodies switched so that the main coil acts as a low beam, while the high beam from the superposition of the main and secondary spiral simultaneously emitted light is formed.
- the novel concept presented here can also be used for others Applications, especially for the term AFS (Advanced Frontlighting Systems) summarized applications, the subject Eureka Project 1403.
- the achievable light distributions are characterized by the fact that they use an improved Technique better and / or more flexibly adapted to different traffic situations are defined as the dimmed light distributions specified in rigid standards and high beam.
- An example is the adjustment of the cut-off line to the speed of travel.
- the individual coils can be operated individually in the usual way be or additionally interconnected. In the latter case So then are three (or more) different modes of operation feasible. Instead of the usual light distributions, the classic modes of operation "High beam” and “low beam” correspond, so are very good too novel light distribution patterns feasible, the modern modes of operation like "city light”, “highway light”, “highway light”, “traffic light” et al correspond. Such an operation is for example in DE-OS 41 24 374 explained. The advantage of the technology presented here In particular, this is because it allows it to be used in modern lighting systems, which offer a variety of different functions, still keep the number of required headlights low.
- cut-off lines can also be realized by fading.
- both coils are designed either with approximately the same power or they are designed so that the power of the auxiliary coil between 20% and 80%, in particular about 50%, corresponds to the performance of the main coil.
- a horizontal plane can be defined, which includes the main coil and parallel to the secondary coil runs and has its origin in the main spiral. It is advantageous if, relative to this horizontal plane, both margins of the occulting well below the lower edge of the main coil. Prefers both side margins have at least 20 ° angular distance to this horizontal Level.
- a horizontal plane which includes the main spiral and which has its origin in the Main coil has and perpendicular to one of the two coils including Level stands. It is advantageous if, based on this horizontal Plain, both margins of the shading clearly below the Lower edge of the main coil lie, preferably on both sides have at least 20 ° angular distance to this horizontal plane.
- the secondary coil is inclined to the main helix and the optical axis.
- the auxiliary spiral is not completely in the shadow zone of the shading lies. This is especially true in transverse or oblique arrangement. In general, however, at least 80%, preferably more than 95%, of the luminous surface of the auxiliary spiral lie in the shadow zone. It must in the case of a transverse secondary spiral, a compromise between a for shading reasons rather cheap short helix and one for the Light distribution of the high beam rather favorable elongated coil received become.
- Fig. 1 shows schematically a headlight 1 with reflector 2 and halogen bulb 3.
- the reflector defines an optical axis A.
- the lamp 3 has a cylindrical piston 4, which is crimped on one side and at the Pinching a socket 5 carries.
- the socket-distal end of the piston 4 is rounded and provided with a known absorption coating 6.
- a first filament forms the main filament 7 with a power of 50 W. It lies in the reference axis of the pedestal, which deals with the optical Axis A of the headlamp covers, being slightly below the piston axis B (which is parallel to the optical axis) is arranged.
- a second filament with a power of 25 W, which is the auxiliary filament 8 is arranged transversely to the optical axis.
- the minor spiral 8 is between base 5 and main coil 7 just below the optical Axis placed.
- the distance to the main coil 7 is 2 mm, the Distance to the optical axis is 1 mm, relative to the center of the helix.
- Fig. 2a and 2b shows the geometric relationships in the lamp in one enlarged detail in side view and cross section.
- the coils 7 and 8 and a shader 9 are on power supply lines 17 in customary fixed, which are fixed to a quartz beam 21.
- the shader 9 is below the main coil 7 is arranged horizontally. He is a concave curved Sheet metal part, the coat of arms similar with a blunt tip 10, two Side edges 11 and an end edge 16 is formed.
- the top 10 of the shader 9 lies between main and secondary spiral. She is so far up, that they see the secondary coil 8, seen from the main coil 7, virtually completely shaded.
- the shading 9 is arranged symmetrically to the vertical. Nevertheless, an asymmetric light distribution is achieved, as this is a Feature of the reflector contour is.
- the position of the two coils and the Abschatters so coordinated is that the width of the transverse coil 8 is smaller than the width of the Abschatters can be selected while at the same time the distance of the Side edges of the Abschatters of the main coil is chosen so that the Azimuth angle ⁇ , seen from the main coil 7, the required shading of about 120 ° causes.
- the reflector contour shown schematically in FIGS. 1 and 2c consists of two Segments 14 and 15, both of which are designed as open spaces.
- the light the main coil 7 is arranged exclusively from the top of the headlight first segment 14 processed while the second segment 15 (shown hatched), which lies below, specifically only light of the secondary spiral 8 processed.
- the auxiliary coil 8 is arranged in the headlight 1 so that they just below the "focal volume" of the second reflector segment 15 lies. (In the case of a paraboloid as a second reflector segment the secondary spiral is just below the focal point).
- the two segments 14 and 15 coincide approximately with the of Shatterer 9 generated zones 12, 13.
- the azimuth angle ⁇ of the second segment spans about 110 °, of the first segment the remaining azimuthal Full angle (250 °).
- the headlight instead of a Circular form a rectangular basic shape, for example, with a width of 13 cm and a height of 10 cm.
- the resulting high beam which is shown in Fig. 3d, is the sum of these three individual components. Striking is the very cheap, even High beam distribution, which gradually into the bright light beam in the center passes, as well as the high efficiency of the total luminous flux.
- Fig. 4a and 4b an arrangement with axial secondary helix 18 is shown. Otherwise the same components correspond to the same reference numbers as in Fig. 1 and 2. Again, the auxiliary coil 18 is about 1 mm below the optical Axis arranged. The distance between the facing each other Edges 19 and 20 of main coil 7 and secondary coil 18 is 1.5 mm.
- Shuttering 9 is analogous to the previous embodiment arranged.
- FIG. 5a to 5d the light distribution of a Such lamp in a headlamp similar to the first embodiment shown.
- the circuit of the helices corresponds again to the in In connection with Fig. 3 discussed operations. Accordingly is the low-beam distribution (FIG.
- FIG. 6 shows an embodiment of a halogen incandescent lamp transverse secondary spiral 8 shown.
- a planer shading 25 surrounds the axial main coil 7. It is made up of several sections 26 to 30 assembled, the angled connect to each other.
- One Such Abschatter is low-reflex and can be particularly easily from a produce right-angled metal strips without any material waste.
- the azimuth angle ⁇ is 110 ° here.
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- General Engineering & Computer Science (AREA)
- Non-Portable Lighting Devices Or Systems Thereof (AREA)
Description
Lampen entsprechend der oben vorgestellten Halogenglühlampe sind jedoch nicht nur für Kraftfahrzeugscheinwerfer einsetzbar, sondern allgemein für Reflektorsysteme, insbesondere in Scheinwerfern, mit zumindest teilweiser, bevorzugt aber vollständiger Freiflächenkontur geeignet. Insbesondere eignet sich eine Halogenglühlampe, die die folgenden Merkmale aufweist:
- ein zylindrischer oder ähnlich geformter Kolben, der eine Kolbenachse definiert,
- ein Sockel, der eine Referenzachse definiert, die der optischen Achse eines Reflektorsystems entspricht,
- eine in der Referenzachse angeordnete Hauptwendel ist von einer metallischen Kappe als Abschatter umgeben, die einen Azimutwinkel von etwa 100° bis 140° abschattet,
- eine Nebenwendel ist außerhalb der Referenzachse angeordnet, wobei der Abstand zur Referenzachse zwischen dem 0.25-fachen und dem Zweifachen des Durchmessers der Nebenwendel beträgt,
- der Abschatter ist so geformt, daß auch die Nebenwendel zumindest überwiegend, bevorzugt vollständig, in der Schattenzone liegt.
- Figur 1
- einen Scheinwerfer mit einer Zweifadenglühlampe mit transversaler Nebenwendel, teilweise im Schnitt
- Figur 2
- einen vergrößerten Ausschnitt aus Fig. 1 in Seitenansicht (Fig. 2a) und im Schnitt (Fig. 2b) sowie eine vereinfachte Draufsicht (Fig. 2c)
- Figur 3
- die mit dem Scheinwerfer von Fig. 1 erzielte Lichtverteilung, aufgeschlüsselt nach mehreren Komponenten (Fig. 3a bis 3c) und integral (Fig. 3d)
- Figur 4
- ein weiteres Ausführungsbeispiel einer Lampe mit axialer Nebenwendel, dargestellt als vergrößerter Ausschnitt entsprechend Fig. 2 in Seitenansicht (Fig. 4a) und Schnitt (Fig. 4b)
- Figur 5
- die mit dem Scheinwerfer von Fig. 4 erzielte Lichtverteilung, aufgeschlüsselt nach mehreren Komponenten (Fig. 5a bis 5c) und integral (Fig. 5d)
- Figur 6
- ein weiteres Ausführungsbeispiel einer Lampe mit einem planen Abschatter, dargestellt als vergrößerter Ausschnitt entsprechend Fig. 2 in Seitenansicht (Fig. 6a) und Schnitt (Fig. 6b)
- Eine erste Komponente wird wieder durch die Abblendlichtverteilung gemäß Fig. 3a von der Hauptwendel 7 in Verbindung mit dem ersten Reflektorsegment 14 erzeugt.
- Eine zweite, für das Fernlicht wesentliche Komponente besteht aus einem schmalen, hellen Lichtbündel im Zentrum der Lichtverteilung, das durch die Nebenwendel 8 in Verbindung mit dem zweiten Reflektorsegment 15 erzeugt wird. Diese Komponente ist in Fig. 3b gezeigt.
- Hinzu kommt eine dritte Komponente, die sich dadurch ergibt, daß die Nebenwendel 8 auch das erste Reflektorsegment 14 beleuchtet. Auf diese Weise wird eine zusätzliche Ausleuchtung der Seitenbereiche gemäß Fig. 3c erreicht. Dieses Zusatzlicht dient zusammen mit dem Abblendlicht dazu, den durch das Lichtbündel des zweiten Segments erzeugten "Tunneleffekt" zu beseitigen.
- Separate Ansteuerung der Hauptwendel erzeugt über das erste Reflektorsegment eine Lichtverteilung, die sich für den Betriebsmodus "Stadtlicht" eignet. Ein verschiebbares Blendensystem ist in Höhe der Horizontalebene plaziert und wirkt als Abblendmittel.
- Bei zurückgeschobenem, also aus dem optischen Strahlengang entferntem Blendensystem erzeugt bei weiterhin separater Ansteuerung der Hauptwendel ein Abschatter eine Lichtverteilung, die sich für den Betriebsmodus "Landstraßenlicht" eignet.
- Bei zusätzlicher Inbetriebnahme einer transversalen Nebenwendel wird mittels des zweiten Reflektorsegments eine Lichtverteilung erzeugt, die sich für den Betriebsmodus "Abblendlicht für Autobahnen" eignet.
- Als Alternative wird (bei entsprechend optimierter Reflektorkontur) im Falle eines gemeinsamen Betriebs der beiden Wendeln (über beide Reflektorsegmente wie oben beschrieben) durch leichtes Kippen des Reflektors eine Lichtverteilung erzeugt, die sich für den Betriebsmodus "Verkehrszeichenbeleuchtung" eignet.
- Eine erste, für das Fernlicht wesentliche Komponente besteht aus einem hellen Lichtbündel im Zentrum der Lichtverteilung, das durch die Nebenwendel 8 in Verbindung mit dem zweiten Reflektorsegment 15 erzeugt wird. Diese Komponente ähnelt wieder der in Fig. 3b gezeigten Lichtverteilung, sie ist aber nicht so schmal.
- Hinzu kommt eine zweite Komponente, die sich dadurch ergibt, daß die Nebenwendel 8 auch das erste Reflektorsegment 14 beleuchtet. Auf diese Weise wird eine zusätzliche Ausleuchtung der Seitenbereiche gemäß Fig. 3c erreicht, um wieder den durch das Lichtbündel des zweiten Segments erzeugten "Tunneleffekt" zu beseitigen.
Claims (12)
- Halogenglühlampe zur Verwendung in einem Reflektorsystem, insbesondere in einem Kraftfahrzeugscheinwerfer, mit zumindest teilweiser Freiflächenkontur, gekennzeichnet durch folgende Merkmale:ein zylindrischer oder ähnlich geformter Kolben (4), der eine Kolbenachse definiert,ein Sockel (5), der eine Referenzachse definiert, die der optischen Achse (A) eines Reflektorsystems entspricht,eine in der Referenzachse angeordnete Hauptwendel (7) ist von einer metallischen Kappe als Abschatter (9; 25) umgeben, die einen Azimutwinkel von 100° bis 140° abschattet,eine Nebenwendel (8; 18) ist außerhalb der Referenzachse angeordnet, wobei der Abstand zur Referenzachse zwischen dem 0.25-fachen und dem Zweifachen des Durchmessers der Nebenwendel beträgt,der Abschatter (9; 25) ist so geformt, daß auch die Nebenwendel zumindest überwiegend in der Schattenzone liegt,die Nebenwendel (8) ist transversal zur Hauptwendel (7) angeordnet.
- Halogenglühlampe nach Anspruch 1, dadurch gekennzeichnet, daß die beiden Wendeln so ausgelegt sind, daß die Leistung der Nebenwendel zwischen 20 und 140 % der Leistung der Hauptwendel entspricht.
- Halogenglühlampe nach Anspruch 1, dadurch gekennzeichnet, daß, bezogen auf eine horizontale Ebene, die die Hauptwendel (7) einschließt und parallel zur Nebenwendel verläuft und die ihren Ursprung in der Hauptwendel hat, beide Seitenränder (11) des Abschatters deutlich unterhalb der Unterkante der Hauptwendel liegen, und zwar bevorzugt auf beiden Seiten mindestens 20° Winkelabstand zu dieser horizontalen Ebene besitzen.
- Halogenglühlampe nach Anspruch 1, dadurch gekennzeichnet, daß der Abschatter (25) ein planes, insbesondere abgewinkeltes oder kontinuierlich gebogenes, Blechteil ist.
- Kraftfahrzeugscheinwerfer (1) für Abblend- und Fernlicht, bestehend aus einem Reflektor mit zwei Segmenten (2), der eine optische Achse (A) definiert, und einer darin angeordneten Halogenglühlampe (3) nach einem der vorherigen Ansprüche.
- Kraftfahrzeugscheinwerfer nach Anspruch 5, gekennzeichnet durch folgende Merkmale:der Reflektor (2) besteht aus zwei Segmenten (14, 15), die unterschiedliche Konturverläufe aufweisen, wobei das erste Segment (14) optisch der Hauptwendel (7) zugeordnet ist, während das zweite Segment (15) optisch dem zweiten Leuchtkörper zugeordnet ist, der im folgenden als Nebenwendel (8) bezeichnet ist, wobei zumindest die Kontur des ersten Segments (14) eine Freiflächenkontur ist,die Hauptwendel (7) ist vom Abschatter (9; 25) so umgeben, daß ein Azimutwinkel von 100° bis 140° abgeschattet ist, wodurch eine Schattenzone (12) und eine Beleuchtungszone (13) definiert wird,die Nebenwendel (8) ist unterhalb der optischen Achse (A) angeordnet, wobei die Versetzung zwischen dem 0.25-fachen und dem Zweifachen des Durchmessers der Nebenwendel beträgt,die räumliche Aufteilung der Segmente (14, 15) des Reflektors ist den beiden vom Abschatter definierten Zonen (12,13) zugeordnet.
- Kraftfahrzeugscheinwerfer nach Anspruch 6, dadurch gekennzeichnet, daß die Freiflächenkontur des ersten Segments (14) dahingehend optimiert ist, daß sie die für die Abblendwirkung notwendige Hell-Dunkel-Grenze erzeugt.
- Kraftfahrzeugscheinwerfer nach Anspruch 7, dadurch gekennzeichnet, daß, bezogen auf eine horizontale Ebene, die die Hauptwendel (7) einschließt und die ihren Ursprung in der Hauptwendel hat, beide Seitenränder (11) des Abschatters deutlich unterhalb der Unterkante der Hauptwendel liegen, und zwar bevorzugt auf beiden Seiten mindestens 20° Winkelabstand zu dieser horizontalen Ebene besitzen.
- Kraftfahrzeugscheinwerfer nach Anspruch 6, dadurch gekennzeichnet, daß das zweite Segment (15) des Reflektors eine Paraboloidkontur oder eine Freiflächenkontur ist.
- Kraftfahrzeugscheinwerfer nach Anspruch 9, dadurch gekennzeichnet, daß die in die Schattenzone (12) fallende Strahlung der Nebenwendel (8) gezielt zur Erzeugung eines als wesentlicher Teil der Fernbeleuchtung einsetzbaren schmalen und intensiven Lichtbündels verwendet wird.
- Kraftfahrzeugscheinwerfer nach Anspruch 6, dadurch gekennzeichnet, daß der Flächenanteil des der Schattenzone zugeordneten zweiten Segments an der Gesamtfläche des Reflektors etwa 10 bis 30 % ausmacht.
- Kraftfahrzeugscheinwerfer nach Anspruch 6, dadurch gekennzeichnet, daß die elektrischen Anschlüsse der beiden Leuchtkörper so miteinander verbunden sind, daß die Hauptwendel (7) als Abblendlicht wirkt, während das Fernlicht entweder von dem von der Nebenwendel emittierten Licht oder aus der Überlagerung des von Haupt- und Nebenwendel gleichzeitig emittierten Lichts gebildet wird.
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 EP0791779A2 (de) | 1997-08-27 |
EP0791779A3 EP0791779A3 (de) | 1999-02-10 |
EP0791779B1 true EP0791779B1 (de) | 2005-05-18 |
Family
ID=7786271
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
EP97102893A Expired - Lifetime EP0791779B1 (de) | 1996-02-23 | 1997-02-21 | Kraftfahrzeugscheinwerfer für Abblend- und Fernlicht und Lampe |
Country Status (9)
Country | Link |
---|---|
US (1) | US5725298A (de) |
EP (1) | EP0791779B1 (de) |
JP (1) | JPH09237504A (de) |
KR (1) | KR100450646B1 (de) |
CN (1) | CN1084864C (de) |
AU (1) | AU714638B2 (de) |
CA (1) | CA2198193C (de) |
DE (1) | DE59712309D1 (de) |
ES (1) | ES2242972T3 (de) |
Families Citing this family (30)
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JP4057090B2 (ja) * | 1996-06-06 | 2008-03-05 | 本田技研工業株式会社 | 車両用電球 |
FR2782149B1 (fr) * | 1998-08-10 | 2001-04-13 | Valeo Vision | Projecteur de vehicule automobile pourvu d'une lampe a deux filaments et d'un miroir perfectionnes |
FR2782148B1 (fr) * | 1998-08-10 | 2001-02-09 | Valeo Vision | Projecteur de vehicule automobile pourvu d'une lampe a deux filaments et d'un miroir perfectionnes |
JP2000100233A (ja) * | 1998-09-25 | 2000-04-07 | Ichikoh Ind Ltd | 前照灯 |
FR2794845B1 (fr) * | 1999-06-08 | 2001-08-17 | Valeo Vision | Projecteur equipe d'une lampe a double source, notamment projecteur croisement route pour vehicule automobile |
AT413753B (de) * | 1999-08-16 | 2006-05-15 | Zizala Lichtsysteme Gmbh | Fahrzeugscheinwerfer |
DE19946297A1 (de) * | 1999-09-28 | 2001-04-12 | Philips Corp Intellectual Pty | Glühlampe |
DE10131444A1 (de) | 2001-06-29 | 2003-01-09 | Philips Corp Intellectual Pty | Mehrfaden-Kfz-Scheinwerfer-Lampe |
DE10145427A1 (de) * | 2001-09-14 | 2003-04-03 | Patent Treuhand Ges Fuer Elektrische Gluehlampen Mbh | Glühlampe für Kraftfahrzeugscheinwerfer |
DE10215397A1 (de) * | 2002-04-08 | 2003-10-16 | Patent Treuhand Ges Fuer Elektrische Gluehlampen Mbh | Glühlampe für Kraftfahrzeugscheinwerfer |
JP2004006098A (ja) * | 2002-05-31 | 2004-01-08 | Sanyo Tekunika:Kk | 車両用前照灯 |
FR2842282B1 (fr) † | 2002-07-15 | 2004-12-17 | Valeo Vision | Projecteur de vehicule automobile avec lampe a deux filaments |
DE60311817T2 (de) * | 2002-07-26 | 2007-12-06 | Koninklijke Philips Electronics N.V. | Beleuchtungssystem |
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 |
DE102006060772A1 (de) * | 2006-12-21 | 2008-06-26 | Patent-Treuhand-Gesellschaft für elektrische Glühlampen mbH | Abblendkappe für Zweiwendelhalogenlampe unterschiedlicher Leistung zur Nutzlichtherhöhung |
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 |
DE102011005429A1 (de) | 2011-03-11 | 2012-09-13 | Osram Ag | Leuchte oder Lampe mit Abschatteinheit |
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 |
CN107975764B (zh) * | 2017-11-28 | 2024-07-05 | 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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AT218126B (de) * | 1958-12-03 | 1961-11-10 | Nowak Karl Ing Ohg Spezialfab | Kraftfahrzeug-Scheinwerferlampe |
NL6603641A (de) * | 1966-03-19 | 1967-09-20 | ||
DE1539371A1 (de) * | 1966-11-10 | 1969-12-04 | Bosch Gmbh Robert | Verfahren zum Herstellen von Scheinwerfergluehlampen und nach diesem Verfahren hergestellte Scheinwerfergluehlampen |
DE1772256C3 (de) * | 1968-04-20 | 1978-05-03 | Robert Bosch Gmbh, 7000 Stuttgart | Abblendbarer Fahrzeugscheinwerfer für asymmetrisches Abblendlicht |
NL7513429A (nl) * | 1975-11-18 | 1977-05-23 | Philips Nv | Halogeen-gloeilamp. |
DE2720956C2 (de) * | 1977-05-10 | 1982-12-02 | Bayerische Motoren Werke AG, 8000 München | Kraftfahrzeug-Scheinwerfer für Abblend- und Fernlicht |
FR2396240A1 (fr) * | 1977-07-01 | 1979-01-26 | Cibie Projecteurs | Projecteur croisement-route de grande ouverture pour vehicule automobile |
DE3106512A1 (de) * | 1981-02-21 | 1982-09-09 | Robert Bosch Gmbh, 7000 Stuttgart | Insbesondere einsatzscheinwerfer fuer abblendlicht von kraftfahrzeugen |
US5204820A (en) * | 1987-03-11 | 1993-04-20 | Eastman Kodak Company | Method of producing an optically effective arrangement in particular for application with a vehicular headlight |
DE3808086A1 (de) * | 1988-03-11 | 1989-09-28 | Hella Kg Hueck & Co | Reflektor fuer abgeblendete oder abblendbare kraftfahrzeugscheinwerfer |
DE4102586C2 (de) * | 1990-01-31 | 2000-07-06 | Honda Motor Co Ltd | Scheinwerfer |
JPH0716247Y2 (ja) * | 1990-04-20 | 1995-04-12 | スタンレー電気株式会社 | ヘッドランプ |
JPH07109721B2 (ja) * | 1990-08-07 | 1995-11-22 | 株式会社小糸製作所 | 車輌用前照灯 |
DE4124374A1 (de) * | 1991-07-23 | 1993-01-28 | Hella Kg Hueck & Co | Scheinwerfer fuer fahrzeuge |
FR2694373B1 (fr) * | 1992-07-30 | 1994-11-04 | Valeo Vision | Projecteur de véhicule automobile comportant une lampe à deux filaments pour engendrer sélectivement un faisceau antibrouillard et un faisceau de route. |
JP2657603B2 (ja) * | 1992-11-13 | 1997-09-24 | アイピーエフ株式会社 | 自動車用照明灯の製造方法 |
JP2813855B2 (ja) * | 1993-08-25 | 1998-10-22 | 株式会社小糸製作所 | 自動車用前照灯 |
FR2720476B1 (fr) * | 1994-05-26 | 1996-08-09 | Valeo Vision | Projecteur comportant une lampe à deux filaments pour engendrer un faisceau coupé et un faisceau non coupé. |
IT1266928B1 (it) * | 1994-09-20 | 1997-01-21 | Carello Spa | Proiettore per veicoli con riflettore a superficie complessa. |
GB2294536B (en) * | 1994-10-27 | 1998-06-17 | Carello Lighting Plc | Vehicle headlight with a complex-surface reflector |
DE19511165A1 (de) * | 1995-03-28 | 1996-10-02 | Teves Gmbh Alfred | Fahrzeugleuchte |
-
1997
- 1997-02-19 JP JP9051053A patent/JPH09237504A/ja not_active Abandoned
- 1997-02-20 US US08/803,387 patent/US5725298A/en not_active Expired - Fee Related
- 1997-02-21 AU AU14846/97A patent/AU714638B2/en not_active Ceased
- 1997-02-21 EP EP97102893A patent/EP0791779B1/de not_active Expired - Lifetime
- 1997-02-21 DE DE59712309T patent/DE59712309D1/de not_active Expired - Fee Related
- 1997-02-21 CN CN97102666A patent/CN1084864C/zh not_active Expired - Fee Related
- 1997-02-21 KR KR1019970005310A patent/KR100450646B1/ko not_active IP Right Cessation
- 1997-02-21 CA CA002198193A patent/CA2198193C/en not_active Expired - Fee Related
- 1997-02-21 ES ES97102893T patent/ES2242972T3/es not_active Expired - Lifetime
Also Published As
Publication number | Publication date |
---|---|
CA2198193C (en) | 2004-10-05 |
ES2242972T3 (es) | 2005-11-16 |
US5725298A (en) | 1998-03-10 |
KR100450646B1 (ko) | 2004-11-16 |
CN1160137A (zh) | 1997-09-24 |
CN1084864C (zh) | 2002-05-15 |
AU1484697A (en) | 1997-08-28 |
DE59712309D1 (de) | 2005-06-23 |
EP0791779A2 (de) | 1997-08-27 |
EP0791779A3 (de) | 1999-02-10 |
JPH09237504A (ja) | 1997-09-09 |
KR970062473A (ko) | 1997-09-12 |
CA2198193A1 (en) | 1997-08-24 |
AU714638B2 (en) | 2000-01-06 |
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