DE10321564A1 - Vehicle headlamp having a piezo-optical element which affects the optical properties of the light emitting surface - Google Patents
Vehicle headlamp having a piezo-optical element which affects the optical properties of the light emitting surface Download PDFInfo
- Publication number
- DE10321564A1 DE10321564A1 DE2003121564 DE10321564A DE10321564A1 DE 10321564 A1 DE10321564 A1 DE 10321564A1 DE 2003121564 DE2003121564 DE 2003121564 DE 10321564 A DE10321564 A DE 10321564A DE 10321564 A1 DE10321564 A1 DE 10321564A1
- Authority
- DE
- Germany
- Prior art keywords
- motor vehicle
- light
- vehicle headlight
- piezo
- optical element
- 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.)
- Withdrawn
Links
Classifications
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B60—VEHICLES IN GENERAL
- B60Q—ARRANGEMENT OF SIGNALLING OR LIGHTING DEVICES, THE MOUNTING OR SUPPORTING THEREOF OR CIRCUITS THEREFOR, FOR VEHICLES IN GENERAL
- B60Q1/00—Arrangement of optical signalling or lighting devices, the mounting or supporting thereof or circuits therefor
- B60Q1/02—Arrangement of optical signalling or lighting devices, the mounting or supporting thereof or circuits therefor the devices being primarily intended to illuminate the way ahead or to illuminate other areas of way or environments
- B60Q1/04—Arrangement of optical signalling or lighting devices, the mounting or supporting thereof or circuits therefor the devices being primarily intended to illuminate the way ahead or to illuminate other areas of way or environments the devices being headlights
- B60Q1/06—Arrangement of optical signalling or lighting devices, the mounting or supporting thereof or circuits therefor the devices being primarily intended to illuminate the way ahead or to illuminate other areas of way or environments the devices being headlights adjustable, e.g. remotely-controlled from inside vehicle
- B60Q1/08—Arrangement of optical signalling or lighting devices, the mounting or supporting thereof or circuits therefor the devices being primarily intended to illuminate the way ahead or to illuminate other areas of way or environments the devices being headlights adjustable, e.g. remotely-controlled from inside vehicle automatically
- B60Q1/085—Arrangement of optical signalling or lighting devices, the mounting or supporting thereof or circuits therefor the devices being primarily intended to illuminate the way ahead or to illuminate other areas of way or environments the devices being headlights adjustable, e.g. remotely-controlled from inside vehicle automatically due to special conditions, e.g. adverse weather, type of road, badly illuminated road signs or potential dangers
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B60—VEHICLES IN GENERAL
- B60Q—ARRANGEMENT OF SIGNALLING OR LIGHTING DEVICES, THE MOUNTING OR SUPPORTING THEREOF OR CIRCUITS THEREFOR, FOR VEHICLES IN GENERAL
- B60Q1/00—Arrangement of optical signalling or lighting devices, the mounting or supporting thereof or circuits therefor
- B60Q1/02—Arrangement of optical signalling or lighting devices, the mounting or supporting thereof or circuits therefor the devices being primarily intended to illuminate the way ahead or to illuminate other areas of way or environments
- B60Q1/04—Arrangement of optical signalling or lighting devices, the mounting or supporting thereof or circuits therefor the devices being primarily intended to illuminate the way ahead or to illuminate other areas of way or environments the devices being headlights
- B60Q1/14—Arrangement of optical signalling or lighting devices, the mounting or supporting thereof or circuits therefor the devices being primarily intended to illuminate the way ahead or to illuminate other areas of way or environments the devices being headlights having dimming means
-
- 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
- F21S41/141—Light emitting diodes [LED]
- F21S41/143—Light emitting diodes [LED] the main emission direction of the LED being parallel to the optical axis of the illuminating device
-
- 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
-
- 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
- F21S41/60—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
- F21S41/64—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 changing their light transmissivity, e.g. by liquid crystal or electrochromic devices
- F21S41/645—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 changing their light transmissivity, e.g. by liquid crystal or electrochromic devices by electro-optic means, e.g. liquid crystal or electrochromic devices
-
- 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
- F21S41/65—Illuminating devices specially adapted for vehicle exteriors, e.g. headlamps characterised by a variable light distribution by acting on light sources
- F21S41/663—Illuminating devices specially adapted for vehicle exteriors, e.g. headlamps characterised by a variable light distribution by acting on light sources by switching light sources
-
- 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
- F21V5/00—Refractors for light sources
- F21V5/04—Refractors for light sources of lens shape
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B60—VEHICLES IN GENERAL
- B60Q—ARRANGEMENT OF SIGNALLING OR LIGHTING DEVICES, THE MOUNTING OR SUPPORTING THEREOF OR CIRCUITS THEREFOR, FOR VEHICLES IN GENERAL
- B60Q2300/00—Indexing codes for automatically adjustable headlamps or automatically dimmable headlamps
- B60Q2300/05—Special features for controlling or switching of the light beam
- B60Q2300/054—Variable non-standard intensity, i.e. emission of various beam intensities different from standard intensities, e.g. continuous or stepped transitions of intensity
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F21—LIGHTING
- F21S—NON-PORTABLE LIGHTING DEVICES; SYSTEMS THEREOF; VEHICLE LIGHTING DEVICES SPECIALLY ADAPTED FOR VEHICLE EXTERIORS
- F21S41/00—Illuminating devices specially adapted for vehicle exteriors, e.g. headlamps
- F21S41/20—Illuminating devices specially adapted for vehicle exteriors, e.g. headlamps characterised by refractors, transparent cover plates, light guides or filters
- F21S41/28—Cover glass
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F21—LIGHTING
- F21W—INDEXING SCHEME ASSOCIATED WITH SUBCLASSES F21K, F21L, F21S and F21V, RELATING TO USES OR APPLICATIONS OF LIGHTING DEVICES OR SYSTEMS
- F21W2102/00—Exterior vehicle lighting devices for illuminating purposes
- F21W2102/10—Arrangement or contour of the emitted light
- F21W2102/13—Arrangement or contour of the emitted light for high-beam region or low-beam region
- F21W2102/135—Arrangement or contour of the emitted light for high-beam region or low-beam region the light having cut-off lines, i.e. clear borderlines between emitted regions and dark regions
- F21W2102/16—Arrangement or contour of the emitted light for high-beam region or low-beam region the light having cut-off lines, i.e. clear borderlines between emitted regions and dark regions having blurred cut-off lines
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F21—LIGHTING
- F21Y—INDEXING SCHEME ASSOCIATED WITH SUBCLASSES F21K, F21L, F21S and F21V, RELATING TO THE FORM OR THE KIND OF THE LIGHT SOURCES OR OF THE COLOUR OF THE LIGHT EMITTED
- F21Y2115/00—Light-generating elements of semiconductor light sources
- F21Y2115/10—Light-emitting diodes [LED]
Landscapes
- Engineering & Computer Science (AREA)
- General Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Physics & Mathematics (AREA)
- Microelectronics & Electronic Packaging (AREA)
- Optics & Photonics (AREA)
- Chemical & Material Sciences (AREA)
- Crystallography & Structural Chemistry (AREA)
- Non-Portable Lighting Devices Or Systems Thereof (AREA)
Abstract
Description
Die
Erfindung betrifft einen Kraftfahrzeugscheinwerfer gemäß dem Oberbegriff
des Patentanspruchs 1. Ein derartiger Kraftfahrzeugscheinwerfer ist
aus der nicht vorveröffentlichten
In diesem bekannten Kraftfahrzeugscheinwerfer sind mehrere Optikmodule (Leuchteinheiten) vorgesehen, von denen jedes wenigstens eine lichtemittierende Diode (LED) aufweist, deren emittiertes Licht über eine zugeordnete Optik fokussiert und über einen Reflektor reflektiert als Scheinwerferlicht abgestrahlt wird.In this known motor vehicle headlights are several optical modules (Light units) are provided, each of which at least one light-emitting Has diode (LED), the emitted light via an associated optics focused and over a reflector is reflected as headlight light is emitted.
Die räumliche Verteilung des vom Kraftfahrzeugscheinwerfer abgestrahlten Scheinwerferlichts und damit dessen Lichtfunktion (bsp. Abblendlicht oder Fernlicht oder Nebellicht) wird hierbei durch die Ausgestaltung der Reflektoren festgelegt, die als Ellipsoid-Reflektoren oder als Freiflächenform-Reflektoren ausgebildet sein können; insbesondere wird durch die festgelegte räumliche Verteilung des Scheinwerferlichts im durch das Scheinwerferlicht erhellten Ausleuchtbereich auch die Lichtverteilung an der Hell-Dunkel-Grenze als Übergangsbereich zwischen dem Ausleuchtbereich und dem oberhalb des Ausleuchtbereichs liegenden, nicht ausgeleuchteten Dunkelbereich (Streulichtbereich) fest vorgegeben.The spatial Distribution of the headlamp light emitted by the motor vehicle headlamp and thus its light function (e.g. low beam or high beam or Fog light) is due to the design of the reflectors set that as ellipsoid reflectors or as free-form reflectors can be trained; in particular by the fixed spatial distribution of the headlight in the illuminated area illuminated by the headlights Light distribution at the cut-off line as a transition area between the Illumination area and the one above the illumination area non-illuminated dark area (scattered light area) is fixed.
In Abhängigkeit der Umgebungsbedingungen (bsp. der Witterungsverhältnisse) und/oder der jeweiligen Fahrsituation ist es oftmals wünschenswert, die Verteilung des Scheinwerferlichts zu variieren und dieses hierdurch angenehmer für den Fahrer und/oder für den Gegenverkehr zu gestalten und/oder hierdurch die Fahrsicherheit zu erhöhen.In dependence the environmental conditions (e.g. the weather conditions) and / or the respective driving situation, it is often desirable to vary the distribution of the headlight and make it more pleasant for the Driver and / or for to design oncoming traffic and / or thereby driving safety to increase.
Der Erfindung liegt die Aufgabe zugrunde, einen Kraftfahrzeugscheinwerfer gemäß dem Oberbegriff des Patentanspruchs 1 anzugeben, bei dem die Verteilung des vom Kraftfahrzeugscheinwerfer abgestrahlten Scheinwerferlichts auf einfache Weise und kostengünstig variierbar vorgegeben werden kann.The The invention has for its object a motor vehicle headlight according to the generic term of claim 1, in which the distribution of the Motor vehicle headlights emitted headlights on simple Wise and inexpensive can be variably specified.
Diese Aufgabe wird erfindungsgemäß durch die Merkmale im Kennzeichen des Patentanspruchs 1 gelöst.This The object is achieved by the Features solved in the characterizing part of patent claim 1.
Vorteilhafte Ausgestaltungen der Erfindung sind Bestandteil der weiteren Patentansprüche.advantageous Embodiments of the invention form part of the further claims.
Erfindungsgemäß kann beim vorgestellten Kraftfahrzeugscheinwerfer die Verteilung des vom Kraftfahrzeugscheinwerfer abgestrahlten Scheinwerferlichts in Abhängigkeit externer Vorgaben (bsp. der Umgebungsbedingungen, der Fahrsituation oder der Bedienerwünsche) variiert werden, insbesondere hinsichtlich des Helligkeitsverlaufs und/oder der Intensität an der Hell-Dunkel-Grenze (bsp. Vorgabe einer scharten bzw. harten oder einer unscharfen bzw. weichen Hell-Dunkel-Grenze) und/oder im Ausleuchtbereich (bsp. Vorgabe von Zonen mit scharfen bzw. harten Grenzen im Ausleuchtbereich oder von Zonen mit unscharfen bzw. weichen Grenzen im Ausleuchtbereich). Hierzu wird das von einer (vorzugsweise weißen) lichtemittierenden Diode LED als Strahlungsquelle emittierte und über eine fokussierende Optik gebündelte Licht der lichtemittierenden Diode LED als vorzugsweise weißes Scheinwerferlicht über die insbesondere als transparente Glasabdeckung oder transparente Kunststoffabdeckung ausgebildete Lichtaustrittsfläche des Kraftfahrzeugscheinwerfers variierbar abgestrahlt und damit variabel auf den auszuleuchtenden Umgebungsbereich (insbesondere auf die Fahrbahn vor dem Kraftfahrzeug) verteilt, indem die optischen Eigenschaften der Lichtaustrittsfläche variiert werden, insbesondere durch Variation des Strahlengangs im von der lichtemittie renden Diode LED abgestrahlten Licht im Bereich der Lichtaustrittsfläche. Hierfür ist mindestens ein piezooptisches Element vorgesehen, das vorzugsweise als Bestandteil der Lichtaustrittsfläche ausgebildet ist (in der Lichtaustrittsfläche integriert ist) oder zumindest im Bereich der Lichtaustrittsfläche unmittelbar angrenzend an die Lichtaustrittsfläche angeordnet ist; dieses piezooptische Element verändert entsprechend der an ihm angelegten Spannung (Steuerspannung) die Krümmung des von der lichtemittierenden Diode LED abgestrahlten Lichts im Bereich der Lichtaustrittsfläche, insbesondere durch Variation der Krümmung der Lichtaustrittsfläche selbst. Hierdurch wird entsprechend der angelegten Steuerspannung eine Abweichung vom idealen Strahlengang des von der lichtemittierenden Diode LED emittierten Lichts bewirkt, wodurch im vom Kraftfahrzeugscheinwerfer abgestrahlten Scheinwerferlicht ein bestimmter defokussierter Anteil erzeugt und damit eine gewisse Unschärfe (Aufweichung) in der Lichtverteilung des vom Kraftfahrzeugscheinwerfer abgestrahlten Scheinwerferlichts eingestellt wird, d.h. es werden weichere Übergänge in der Lichtverteilung des Scheinwerferlichts, insbesondere in bestimmten Zonen der Lichtverteilung des Scheinwerferlichts realisiert.According to the invention can Motor vehicle headlights presented the distribution of the vehicle headlights radiated headlights depending on external specifications (e.g. the environmental conditions, the driving situation or the operator's requests) varies are, in particular with regard to the brightness curve and / or the intensity at the cut-off line (e.g. specifying a sharp or hard or a blurred or soft cut-off line) and / or in the illumination area (e.g. specifying zones with sharp or hard Limits in the illuminated area or in zones with blurred or soft Limits in the illumination area). This is done by a (preferably white) light emitting diode emitted as a radiation source and via a focusing optics bundled Light of the light-emitting diode LED as preferably white headlight light over the especially designed as a transparent glass cover or transparent plastic cover Light-emitting surface of the motor vehicle headlight variably emitted and thus variable to the surrounding area to be illuminated (in particular distributed on the road in front of the motor vehicle) by the optical Properties of the light exit surface can be varied, in particular by Variation of the beam path in the light-emitting diode LED emitted light in the area of the light exit surface. There is at least one for this Piezo-optical element is provided, preferably as a component the light exit surface is (in the light exit surface is integrated) or at least directly in the area of the light exit surface is arranged adjacent to the light exit surface; this piezo-optical element changed according to the voltage applied to it (control voltage) curvature of the light emitted by the light-emitting diode LED in Area of the light exit surface, in particular by varying the curvature of the light exit surface itself. This causes a deviation in accordance with the applied control voltage from the ideal beam path of the light emitting diode LED emitted light causes, thereby in from the motor vehicle headlights emitted headlight a certain defocused portion generated and thus a certain blurring (softening) in the light distribution the headlight light emitted by the motor vehicle headlight will, i.e. there will be smoother transitions in the Light distribution of the headlight, especially in certain Realized zones of light distribution of the headlight.
Je nach Platzierung und Ansteuerung des piezooptischen Elements können derartige Variationen in der Lichtverteilung partiell nur für bestimmte Bereiche oder Zonen im vom Kraftfahrzeugscheinwerfer abgestrahlten Scheinwerferlicht bewirkt werden, bsp. an der Hell-Dunkel-Grenze zwischen Ausleuchtbereich und Dunkelbereich und/oder im Ausleuchtbereich in der Asymmetriezone und/oder in der Vorfeldzone und/oder in der Seitenzone und/oder in der Streulichtzone und/oder in der Mittelzone. Weiterhin kann auch bei einer Erhöhung der Intensität des von der lichtemittierenden Diode LED emittierten Lichts (und damit bei einer Erhöhung der Gesamthelligkeit des vom Kraftfahrzeugscheinwerfer abgestrahlten Scheinwerferlichts) die Lichtverteilung insbesondere bei mehreren im Kraftfahrzeugscheinwerfer vorgesehenen Optikmodulen so vorgegeben werden, dass die störenden scharfen bzw. unausgeleuchteten Übergänge zwischen den Leuchtbereichen der einzelnen Optikmodule vermieden bzw. zumindest deutlich reduziert werden können.Depending on the placement and control of the piezo-optical element, such variations in the light distribution can in part only be effected for certain areas or zones in the headlight light emitted by the motor vehicle headlight, for example. at the light-dark boundary between the illuminated area and the dark area and / or in the illuminated area in the asymmetry zone and / or in the apron zone and / or in the side zone and / or in the Scattered light zone and / or in the middle zone. Furthermore, even with an increase in the intensity of the light emitted by the light-emitting diode LED (and thus with an increase in the overall brightness of the headlight light emitted by the motor vehicle headlight), the light distribution, in particular in the case of a plurality of optical modules provided in the motor vehicle headlight, can be predetermined such that the disruptive sharp or unilluminated ones Transitions between the lighting areas of the individual optics modules can be avoided or at least significantly reduced.
Durch die Variation der optischen Eigenschaften der Lichtaustrittsfläche mittels piezooptischer Elemente kann beim Kraftfahrzeugscheinwerfer mit der gleichen lichtemittierenden Diode LED als Strahlungsquelle auf einfache Weise und mit geringen Kosten, insbesondere elektronisch ohne mechanische Bewegung von Bauteilen, bei einer definierten Lichtfunktion (bsp. Abblendlicht oder Nebellicht oder Fernlicht) die Verteilung des vom Kraftfahrzeugscheinwerfer abgestrahlten Scheinwerferlichts an bestimmte Vorgaben (insbesondere an die Fahrsituation oder an die Umgebungsbedingungen) variabel angepasst werden, insbesondere hinsichtlich der Aufweichung des Scheinwerferlichts an der Hell-Dunkel-Grenze und/oder im Ausleuchtbereich. Bsp. ist in Fahrsituationen oder Umgebungsbedingungen mit Nebel, Regen, Schnee, Gischt o.ä. zur Vermeidung von Blendwirkungen für den Fahrer und für die anderen Verkehrsteilnehmer eine scharte Hell-Dunkel-Grenze wünschenswert, in Fahrsituationen oder Umgebungsbedingungen mit klarer Sicht oder bei Fahrten auf Autobahnen mit häufigem Hineinleuchten in die Rückspiegel der vorausfahrenden Fahrzeuge für den Fahrer und für die anderen Verkehrsteilnehmer dagegen eine unscharfe (weiche) Hell-Dunkel-Grenze. Falls bsp. eine Aufweichung in der Lichtverteilung partiell nur in der Asymmetriezone des Ausleuchtbereichs vorgenommen wird und damit insbesondere auch die für den Gegenverkehr relevante Streulichtzone scharf konturiert vorgegeben wird, kann gleichzeitig für den Fahrer des Kraftfahrzeugs eine angenehme Lichtverteilung und für den Gegenverkehr eine blendfreie Lichtverteilung realisiert werden.By the variation of the optical properties of the light exit surface by means of Piezo-optical elements can be used in motor vehicle headlights the same light-emitting diode LED as the radiation source simple and at low cost, especially electronically without mechanical movement of components, with a defined light function (e.g. low beam or fog light or high beam) the distribution the headlight light emitted by the motor vehicle headlight to certain requirements (in particular to the driving situation or to the environmental conditions) can be adjusted variably, in particular regarding the softening of the headlight at the cut-off line and / or in the illumination area. Example is in driving situations or environmental conditions with fog, rain, snow, spray or similar to avoid glare for the Driver and for the other road users want a clear cut-off line, in driving situations or environmental conditions with a clear view or when driving on highways with frequent Illuminate in the rear view mirror of the vehicles in front for the driver and for the other road users, on the other hand, have a blurred (soft) light-dark boundary. If e.g. a partial softening in the light distribution only in the asymmetry zone of the illumination area and thus especially for the stray light zone relevant to oncoming traffic is specified with a sharp contour, can simultaneously for the driver of the motor vehicle a pleasant light distribution and for oncoming traffic a glare-free light distribution can be realized.
Im
Zusammenhang mit der Zeichnung (
Hierbei zeigtin this connection shows
Gemäß der
Gemäß der
Gemäß der
Gemäß der
Claims (12)
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
DE2003121564 DE10321564A1 (en) | 2003-05-14 | 2003-05-14 | Vehicle headlamp having a piezo-optical element which affects the optical properties of the light emitting surface |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
DE2003121564 DE10321564A1 (en) | 2003-05-14 | 2003-05-14 | Vehicle headlamp having a piezo-optical element which affects the optical properties of the light emitting surface |
Publications (1)
Publication Number | Publication Date |
---|---|
DE10321564A1 true DE10321564A1 (en) | 2004-12-16 |
Family
ID=33440778
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
DE2003121564 Withdrawn DE10321564A1 (en) | 2003-05-14 | 2003-05-14 | Vehicle headlamp having a piezo-optical element which affects the optical properties of the light emitting surface |
Country Status (1)
Country | Link |
---|---|
DE (1) | DE10321564A1 (en) |
Cited By (18)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
EP1780462A1 (en) * | 2005-10-25 | 2007-05-02 | Valeo Vision | Process for modulated illumination of a road and headlamp using this process |
DE102006021694A1 (en) * | 2006-05-10 | 2007-11-15 | Audi Ag | Lighting device for motor vehicle, has illuminating unit with separate modules having LEDs, where LEDs are controlled by control device for variably producing low beam light and/or high beam light, and control device includes control units |
WO2007128762A1 (en) * | 2006-05-05 | 2007-11-15 | Hella Kgaa Hueck & Co. | Headlights for motor vehicles |
EP1875123A1 (en) * | 2005-04-29 | 2008-01-09 | Osram Opto Semiconductors GmbH | Motor-vehicle headlamp |
DE102008022795A1 (en) * | 2008-05-08 | 2009-11-12 | Osram Opto Semiconductors Gmbh | Motor vehicle headlight has semiconductor lasers as light source of motor vehicle headlight, and light modulator which modifies directional characteristic of light |
DE102013001275A1 (en) * | 2013-01-25 | 2014-07-31 | GM Global Technology Operations LLC (n. d. Gesetzen des Staates Delaware) | Projection module for headlight of car, has light cone emerging from lens by diaphragm, and optical element placed behind light exit surface of lens, so that light cone is influenced by optical element |
GB2517948A (en) * | 2013-09-05 | 2015-03-11 | Johnson Electric Sa | Adjustable light system with piezo actuator |
DE102014100886A1 (en) * | 2014-01-27 | 2015-07-30 | Dr. Ing. H.C. F. Porsche Aktiengesellschaft | headlamp unit |
WO2015185339A1 (en) * | 2014-06-03 | 2015-12-10 | Osram Gmbh | Illumination device |
WO2016037812A1 (en) * | 2014-09-09 | 2016-03-17 | Hella Kgaa Hueck & Co. | Headlight for vehicles |
EP3028896A1 (en) | 2014-12-04 | 2016-06-08 | Audi Ag | Lighting device for a motor vehicle, motor vehicle with an illumination device and method for operating a lighting device |
DE102015203887A1 (en) * | 2015-03-04 | 2016-09-08 | Hella Kgaa Hueck & Co. | lighting device |
DE102015109837A1 (en) * | 2015-06-19 | 2016-12-22 | Hella Kgaa Hueck & Co. | Device for generating light distributions for headlights for a vehicle and headlights for a vehicle |
WO2017148764A1 (en) * | 2016-03-01 | 2017-09-08 | Gottfried Wilhelm Leibniz Universität Hannover | Lighting device, lighting method, and computer program |
EP3246204A1 (en) * | 2016-05-17 | 2017-11-22 | Stanley Electric Co., Ltd. | Vehicle lamp |
FR3064223A1 (en) * | 2017-03-21 | 2018-09-28 | Valeo Vision | IMPROVED LIGHT TRANSMIT MODULE FOR MOTOR VEHICLE |
DE102017209815A1 (en) * | 2017-06-09 | 2018-12-13 | Osram Gmbh | LIGHTING DEVICE FOR A HEADLAMP OF A VEHICLE, HEADLAMP, LIGHT SYSTEM, VEHICLE AND METHOD |
EP3569445A1 (en) * | 2018-05-18 | 2019-11-20 | Toyota Jidosha Kabushiki Kaisha | Vehicle front headlight device |
Citations (9)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE2605345C3 (en) * | 1975-02-12 | 1980-07-31 | Moskovskij Gosudarstvennyj Universitet Imeni M.V. Lomonosova, Moskau | Piezo-optical transmitter |
DE4436620A1 (en) * | 1994-10-13 | 1996-04-18 | Bosch Gmbh Robert | Motor vehicle headlamp with reflector, light source and light permeable element |
DE19530008A1 (en) * | 1995-08-16 | 1997-02-20 | Bosch Gmbh Robert | Vehicle headlight unit |
DE19648620A1 (en) * | 1996-11-12 | 1998-05-14 | Mannesmann Ag | Lighting system |
US6179449B1 (en) * | 1999-06-23 | 2001-01-30 | I-Ming Chen | Multi-color semiconductor lamp and method of providing colored illumination |
DE19907943C2 (en) * | 1999-02-25 | 2001-02-22 | Bosch Gmbh Robert | Motor vehicle headlight with a deflection device for changing the direction of at least part of a light beam |
DE19944369A1 (en) * | 1999-09-16 | 2001-04-12 | Bayerische Motoren Werke Ag | Headlamp for motor vehicle with element arranged in beam course for altering orientation of transmitted light with unlimited adjustment possibilities |
DE10039086A1 (en) * | 2000-08-10 | 2002-02-21 | Daimler Chrysler Ag | Headlamp with adjustable deflector for scattering light moves one of two lens arrays to cause an angular deflection in an emerging cone of light |
US20020101130A1 (en) * | 2000-07-11 | 2002-08-01 | Ribak Erez N. | Voltage and light induced strains in porous crystalline materials and uses thereof |
-
2003
- 2003-05-14 DE DE2003121564 patent/DE10321564A1/en not_active Withdrawn
Patent Citations (9)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE2605345C3 (en) * | 1975-02-12 | 1980-07-31 | Moskovskij Gosudarstvennyj Universitet Imeni M.V. Lomonosova, Moskau | Piezo-optical transmitter |
DE4436620A1 (en) * | 1994-10-13 | 1996-04-18 | Bosch Gmbh Robert | Motor vehicle headlamp with reflector, light source and light permeable element |
DE19530008A1 (en) * | 1995-08-16 | 1997-02-20 | Bosch Gmbh Robert | Vehicle headlight unit |
DE19648620A1 (en) * | 1996-11-12 | 1998-05-14 | Mannesmann Ag | Lighting system |
DE19907943C2 (en) * | 1999-02-25 | 2001-02-22 | Bosch Gmbh Robert | Motor vehicle headlight with a deflection device for changing the direction of at least part of a light beam |
US6179449B1 (en) * | 1999-06-23 | 2001-01-30 | I-Ming Chen | Multi-color semiconductor lamp and method of providing colored illumination |
DE19944369A1 (en) * | 1999-09-16 | 2001-04-12 | Bayerische Motoren Werke Ag | Headlamp for motor vehicle with element arranged in beam course for altering orientation of transmitted light with unlimited adjustment possibilities |
US20020101130A1 (en) * | 2000-07-11 | 2002-08-01 | Ribak Erez N. | Voltage and light induced strains in porous crystalline materials and uses thereof |
DE10039086A1 (en) * | 2000-08-10 | 2002-02-21 | Daimler Chrysler Ag | Headlamp with adjustable deflector for scattering light moves one of two lens arrays to cause an angular deflection in an emerging cone of light |
Non-Patent Citations (4)
Title |
---|
FRANKE,Hermann: Lexikon der Physik, Franckh'sche Verlagshandlung Stuttgart, 169, Bd.2, S.1251 f. -Piezoelektrizität, S.1236 f. -photoelastische Konstanten * |
FRANKE,Hermann: Lexikon der Physik, Franckh'sche Verlagshandlung Stuttgart, 169, Bd.2, S.1251 f. -Piezoelektrizität, S.1236 f. -photoelastische Konstanten; |
Lexikon der Physik, in sechs Bänden, Spektrum, Akad. Verlag, 2000, Bd.4, S.272 f. * |
Lexikon der Physik, in sechs Bänden, Spektrum, Akad. Verlag, 2000, Bd.4, S.272 f.; |
Cited By (30)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
EP1875123B1 (en) * | 2005-04-29 | 2016-05-18 | OSRAM Opto Semiconductors GmbH | Motor-vehicle headlamp |
EP1875123A1 (en) * | 2005-04-29 | 2008-01-09 | Osram Opto Semiconductors GmbH | Motor-vehicle headlamp |
FR2894905A1 (en) * | 2005-10-25 | 2007-06-22 | Valeo Vision Sa | METHOD OF LIGHTING MODULE OF A ROAD AND PROJECTOR OF A VEHICLE IMPLEMENTING SAID METHOD |
EP1780462A1 (en) * | 2005-10-25 | 2007-05-02 | Valeo Vision | Process for modulated illumination of a road and headlamp using this process |
WO2007128762A1 (en) * | 2006-05-05 | 2007-11-15 | Hella Kgaa Hueck & Co. | Headlights for motor vehicles |
DE102006021694A1 (en) * | 2006-05-10 | 2007-11-15 | Audi Ag | Lighting device for motor vehicle, has illuminating unit with separate modules having LEDs, where LEDs are controlled by control device for variably producing low beam light and/or high beam light, and control device includes control units |
DE102006021694B4 (en) * | 2006-05-10 | 2012-10-25 | Audi Ag | Lighting device for a motor vehicle |
DE102008022795A1 (en) * | 2008-05-08 | 2009-11-12 | Osram Opto Semiconductors Gmbh | Motor vehicle headlight has semiconductor lasers as light source of motor vehicle headlight, and light modulator which modifies directional characteristic of light |
DE102008022795B4 (en) | 2008-05-08 | 2020-01-09 | Osram Opto Semiconductors Gmbh | Motor vehicle headlight |
DE102013001275A1 (en) * | 2013-01-25 | 2014-07-31 | GM Global Technology Operations LLC (n. d. Gesetzen des Staates Delaware) | Projection module for headlight of car, has light cone emerging from lens by diaphragm, and optical element placed behind light exit surface of lens, so that light cone is influenced by optical element |
GB2517948A (en) * | 2013-09-05 | 2015-03-11 | Johnson Electric Sa | Adjustable light system with piezo actuator |
DE102014100886A1 (en) * | 2014-01-27 | 2015-07-30 | Dr. Ing. H.C. F. Porsche Aktiengesellschaft | headlamp unit |
US10125940B2 (en) | 2014-06-03 | 2018-11-13 | Osram Gmbh | Illumination device |
WO2015185339A1 (en) * | 2014-06-03 | 2015-12-10 | Osram Gmbh | Illumination device |
WO2016037812A1 (en) * | 2014-09-09 | 2016-03-17 | Hella Kgaa Hueck & Co. | Headlight for vehicles |
DE102014112931B4 (en) | 2014-09-09 | 2023-11-30 | HELLA GmbH & Co. KGaA | Headlights for vehicles |
DE102014017978A1 (en) | 2014-12-04 | 2016-06-09 | Audi Ag | Lighting device for a motor vehicle, motor vehicle with a lighting device and method for operating a lighting device |
EP3028896A1 (en) | 2014-12-04 | 2016-06-08 | Audi Ag | Lighting device for a motor vehicle, motor vehicle with an illumination device and method for operating a lighting device |
DE102015203887A1 (en) * | 2015-03-04 | 2016-09-08 | Hella Kgaa Hueck & Co. | lighting device |
US10054281B2 (en) | 2015-03-04 | 2018-08-21 | Hella Kgaa Hueck & Co. | Lighting apparatus |
DE102015109837A1 (en) * | 2015-06-19 | 2016-12-22 | Hella Kgaa Hueck & Co. | Device for generating light distributions for headlights for a vehicle and headlights for a vehicle |
WO2017148764A1 (en) * | 2016-03-01 | 2017-09-08 | Gottfried Wilhelm Leibniz Universität Hannover | Lighting device, lighting method, and computer program |
US10464470B2 (en) | 2016-05-17 | 2019-11-05 | Stanley Electric Co., Ltd. | Vehicle lamp |
EP3246204A1 (en) * | 2016-05-17 | 2017-11-22 | Stanley Electric Co., Ltd. | Vehicle lamp |
FR3064223A1 (en) * | 2017-03-21 | 2018-09-28 | Valeo Vision | IMPROVED LIGHT TRANSMIT MODULE FOR MOTOR VEHICLE |
DE102017209815A1 (en) * | 2017-06-09 | 2018-12-13 | Osram Gmbh | LIGHTING DEVICE FOR A HEADLAMP OF A VEHICLE, HEADLAMP, LIGHT SYSTEM, VEHICLE AND METHOD |
EP3569445A1 (en) * | 2018-05-18 | 2019-11-20 | Toyota Jidosha Kabushiki Kaisha | Vehicle front headlight device |
CN110566899A (en) * | 2018-05-18 | 2019-12-13 | 丰田自动车株式会社 | Vehicle headlamp apparatus |
US10787113B2 (en) | 2018-05-18 | 2020-09-29 | Toyota Jidosha Kabushiki Kaisha | Vehicle front headlight device |
CN110566899B (en) * | 2018-05-18 | 2022-04-19 | 丰田自动车株式会社 | Vehicle headlamp apparatus |
Similar Documents
Publication | Publication Date | Title |
---|---|---|
EP2339228B1 (en) | Light module for a lighting device and lighting device of a motor vehicle with such a light module | |
DE10321564A1 (en) | Vehicle headlamp having a piezo-optical element which affects the optical properties of the light emitting surface | |
EP2357398B1 (en) | Light module for a lighting device of a motor vehicle | |
DE19860461B4 (en) | Headlamp system for vehicles for generating light bundles with different characteristics | |
DE102009010558B4 (en) | Light module for a headlight of a motor vehicle and motor vehicle headlight with such a light module | |
EP2431657B1 (en) | Reflector module of a motor vehicle headlamp | |
DE4313914C2 (en) | Motor vehicle headlight device with variable illuminance distribution | |
WO2017198516A1 (en) | Headlight, in particular headlight a motor vehicle | |
EP2834555B1 (en) | Illuminating device for a motor vehicle | |
DE102007040728B4 (en) | vehicle headlights | |
DE102011077636A1 (en) | Light module for head lamp system of motor vehicle i.e. motor car, has sub modules separately controlled to generate set of strip-shaped segments of spot distribution, where strip-shaped segments are complement to spot distribution | |
DE102005020085A1 (en) | Motor vehicle headlight | |
DE102008036193A1 (en) | Lighting installation i.e. headlight, for motor vehicle, has lighting module with first set of activated photodiodes different from second set of activated photodiodes by number and/or position of photodiodes in matrix | |
DE102009008631A1 (en) | Projection module for a motor vehicle headlight | |
WO2018045402A1 (en) | Vehicle headlight | |
DE19860669A1 (en) | Attenuating lighting close to vehicle while maintaining good overall output by using controllable partly reflecting and partly transparent plate in conjunction with complementary reflecting surface | |
DE19814479B4 (en) | Vehicle headlights according to the projection principle | |
DE102008044967A1 (en) | Lighting device for use as vehicle headlight, has light sources forming LED field and optical imaging elements exhibiting square cross section, where vertical side walls of elements of one of lines are bent | |
DE19646042B4 (en) | Vehicle lighting device | |
EP2500630B1 (en) | Transparent lens of a motor vehicle lighting device | |
DE102009054101A1 (en) | Lighting device for motor vehicle, has two radiation sources and light source that is formed from LED module which comprises LED, where light source is integrated into one of radiation sources | |
DE102009022848A1 (en) | Headlight arrangement for use in headlight system of motor vehicle, has secondary optics formed as scatter lens that is arranged between primary optics and focus and/or focal plane of bundled radiation | |
DE10308703A1 (en) | Motor vehicle headlight has light diode modules with a shade at the focus to vary the light distribution and then an outer dispersion unit | |
DE19813032A1 (en) | Headlight system for vehicles for emitting variable light beams | |
DE19739400B4 (en) | Vehicle rear light, especially for bicycles |
Legal Events
Date | Code | Title | Description |
---|---|---|---|
OM8 | Search report available as to paragraph 43 lit. 1 sentence 1 patent law | ||
OP8 | Request for examination as to paragraph 44 patent law | ||
8130 | Withdrawal |