DE19910004A1 - Motor-vehicle headlamp anti-dazzle arrangement, includes liquid crystal display (LCD) in beam-path for controlling switchover between dipped-beam and high-beam - Google Patents

Motor-vehicle headlamp anti-dazzle arrangement, includes liquid crystal display (LCD) in beam-path for controlling switchover between dipped-beam and high-beam

Info

Publication number
DE19910004A1
DE19910004A1 DE19910004A DE19910004A DE19910004A1 DE 19910004 A1 DE19910004 A1 DE 19910004A1 DE 19910004 A DE19910004 A DE 19910004A DE 19910004 A DE19910004 A DE 19910004A DE 19910004 A1 DE19910004 A1 DE 19910004A1
Authority
DE
Germany
Prior art keywords
dipped
crystal display
lcd
path
liquid crystal
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.)
Ceased
Application number
DE19910004A
Other languages
German (de)
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.)
Individual
Original Assignee
Individual
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 Individual filed Critical Individual
Priority to DE19910004A priority Critical patent/DE19910004A1/en
Publication of DE19910004A1 publication Critical patent/DE19910004A1/en
Ceased legal-status Critical Current

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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
    • 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
    • F21S41/62—Illuminating devices specially adapted for vehicle exteriors, e.g. headlamps characterised by a variable light distribution for adaptation between right-hand and left-hand traffic
    • 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
    • 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
    • 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
    • B60Q2300/30—Indexing codes relating to the vehicle environment
    • B60Q2300/33—Driving situation
    • B60Q2300/331—Driving situation characterised by the driving side, e.g. on the left or right hand side

Landscapes

  • Engineering & Computer Science (AREA)
  • General Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Chemical & Material Sciences (AREA)
  • Crystallography & Structural Chemistry (AREA)
  • Lighting Device Outwards From Vehicle And Optical Signal (AREA)

Abstract

An anti-dazzle device combining the dipped headlight and high-beam light in a motor vehicle head-lamp reflector, enables any selected configuration of the light distribution of the head-lamp to be realized. The switchover between dipped- and high-beam, as well as beam-width adjustment, is controlled by a liquid-crystal display (LCD) located in the light-beam path.

Description

Es ist bekannt, Kfz-Scheinwerfer so zu konstruieren, daß die Funktionen Abblendlicht und Fernlicht in einem einzi­ gen Reflektor vereinigt sind. Bei herkömmlichen Reflekto­ ren und Fadenglühbirnen werden Zweifadenbirnen verwendet wobei die Abblendglühwendel teilabgeschattet ist. Werden Projektionsscheinwerfer mit Lichtbogenlampen benutzt, so finden andere Techniken Verwendung. Neben der Entwicklung von Reflektoren, die zwei Lampen aufnehmen können sind Lösungen bekannt, Blenden in den Strahlengang zu schieben oder die Lampe in Längsrichtung mechanisch so zu ver­ schieben, daß in Verbindung mit einem geeigneten Reflektor die Funktionen Abblendlicht und Fernlicht in einem Schein­ werfer vereinigt werden.It is known to design automotive headlights so that the low beam and high beam functions in one are united towards the reflector. With conventional reflectors Ren and filament light bulbs two-filament bulbs are used the dipped filament is partially shaded. Become Projection headlights with arc lamps used, see above other techniques are used. In addition to development of reflectors that can hold two lamps Known solutions to push aperture in the beam path or to mechanically ver so the lamp in the longitudinal direction push that in connection with a suitable reflector the low beam and high beam functions in one glow throwers are united.

Der im Patentanspruch angegebenen Erfindung liegt das Problem zugrunde, Abblendlicht und Fernlicht in einem Re­ flektor so zu kombinieren, daß eine beliebige Ausgestaltung der Helligkeitsverteilung möglich wird.The invention specified in the claim is Underlying problem, low beam and high beam in one re to combine flector so that any configuration the brightness distribution becomes possible.

Dieses Problem wird durch die im Patentanspruch aufgeführ­ te Einbringung eines Flüssigkristalldisplays in den Strah­ lengang des Scheinwerfers gelöst.This problem is outlined in the claim Introduction of a liquid crystal display into the beam headlamp release.

Die mit der Erfindung erzielten Vorteile bestehen insbe­ sondere darin, daß der Bauaufwand erheblich reduziert wird; eine externe Leuchtweitenregulierung entfällt. Es wird nur eine Bauform für Rechts- und Linksverkehr benötigt und der Bedarf an nur einem Reflektor gestattet Flexibilität im Karosseriedesign. Die Scheinwerfer können bei Nichtbenut­ zung durch Aktivierung des LCD-Schirmes geschwärzt oder bei Verwendung farbiger Displays beliebig eingefärbt wer­ den. Mittels Einspeisung von Sensorwerten wie z. B. Lenk­ einschlag, Geschwindigkeit und Umgebungshelligkeit kann die Helligkeitsverteilung des Scheinwerfers flexibel an die Fahrsituation angepasst werden. So kann neben der Re­ gulierung der Leuchtweite das Hineinleuchten in Kurven und bei Autobahnfahrt die Ausleuchtung von über der Fahrbahn befindlichen Schildern mittels eines Leuchtkeils leicht erreicht werden. Auch sind weiche Hell-Dunkel-Übergänge und eine kontinuierliche Dimmung des Scheinwerfers möglich. Durch den Wegfall mechanischer Komponenten ist eine hohe Robustheit des Systems gewährleistet. Die kompakte Bauweise mit integrierter Leuchtweitenregulierung macht den Ein­ satz von Lichtbogenlampen im Zweiradbereich möglich.The advantages achieved with the invention are in particular special in that the construction effort is significantly reduced; there is no external headlight range adjustment. It will only a design for right and left-hand traffic is required and the The need for only one reflector allows flexibility in the  Body design. The headlights can be used when not in use blackened or activated by activating the LCD screen when using colored displays, whoever is colored the. By feeding sensor values such as B. Lenk impact, speed and ambient brightness the brightness distribution of the headlights flexibly the driving situation can be adjusted. So in addition to the Re regulation of the lighting range, the lighting in curves and when driving on the highway, the illumination from above the road signs easily using a light wedge can be achieved. There are also soft light-dark transitions and continuous dimming of the headlamp is possible. Due to the elimination of mechanical components, a high System robustness guaranteed. The compact design with integrated headlamp leveling makes the one Arc lamps can be used in two-wheelers.

Ein Ausführungsbeispiel für einen Projektionsscheinwerfer mit Xenon-Lichtbogenlampe ist in der Zeichnung dargestellt und wird im Folgenden näher beschrieben.An embodiment for a projection headlight with xenon arc lamp is shown in the drawing and is described in more detail below.

Es zeigt Fig. 1 die Anordnung der Baugruppen im Strahlengang. Die von der Lampe emittierte Strahlung wird von Kondensor und Reflektor gebündelt. Der im Kondensorsystem befindli­ che Wärmefilter verhindert eine zu starke thermische Be­ lastung des LCD-Schirmes. Dieser moduliert die Helligkeits­ verteilung des Lichtbündels welches danach punktgespiegelt durch die im Scheinwerferglas integrierte Objektivlinse auf die auszuleuchtende Umgebung projiziert wird. It shows Fig. 1, the arrangement of the modules in the beam path. The radiation emitted by the lamp is bundled by the condenser and reflector. The heat filter in the condenser system prevents excessive thermal stress on the LCD screen. This modulates the brightness distribution of the light beam, which is then mirrored onto the surrounding area to be projected through the objective lens integrated in the headlight glass.

Es zeigt Fig. 2 das Schema der Signalverarbeitung. In Abhän­ gigkeit vom Wunsch des Fahrers (Abblend-/Fernlicht, Auto­ bahnfahrt), vorprogrammierten Parametern (Links-/Rechtsver­ kehr, Helligkeitsübergänge) und von Sensorwerten (Lenkein­ schlag, Geschwindigkeit, Karosserieneigung, Außenhelligkeit) wird die entsprechende Abschattungsverteilung des den LCD- Schirm ansteuernden Bildspeichers aktiviert. Dabei zeigt der LCD-Schirm eine probate Ausgestaltungsmöglichkeit der Bild­ punkte in der Zeichnung auf.It shows Fig. 2 the diagram of the signal processing. Depending on the driver's wishes (dipped / main beam, driving on the motorway), pre-programmed parameters (left / right traffic, brightness transitions) and sensor values (steering angle, speed, body tilt, outside brightness), the corresponding shading distribution of the LCD screen is determined controlling image memory activated. The LCD screen shows a possible way of designing the pixels in the drawing.

Claims (1)

Abblendvorrichtung für Kfz-Scheinwerfer, dadurch gekennzeichnet, daß die Umschaltung zwischen Abblendlicht und Fernlicht sowie die Regulierung der Leuchtweite durch ein im Strah­ lengang befindliches Flüssigkristall-Display gesteuert wird.Dimming device for motor vehicle headlights, characterized in that the switching between low beam and high beam as well as the regulation of the light range is controlled by a liquid crystal display located in the beam path.
DE19910004A 1999-03-08 1999-03-08 Motor-vehicle headlamp anti-dazzle arrangement, includes liquid crystal display (LCD) in beam-path for controlling switchover between dipped-beam and high-beam Ceased DE19910004A1 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
DE19910004A DE19910004A1 (en) 1999-03-08 1999-03-08 Motor-vehicle headlamp anti-dazzle arrangement, includes liquid crystal display (LCD) in beam-path for controlling switchover between dipped-beam and high-beam

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DE19910004A DE19910004A1 (en) 1999-03-08 1999-03-08 Motor-vehicle headlamp anti-dazzle arrangement, includes liquid crystal display (LCD) in beam-path for controlling switchover between dipped-beam and high-beam

Publications (1)

Publication Number Publication Date
DE19910004A1 true DE19910004A1 (en) 2000-09-21

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Family Applications (1)

Application Number Title Priority Date Filing Date
DE19910004A Ceased DE19910004A1 (en) 1999-03-08 1999-03-08 Motor-vehicle headlamp anti-dazzle arrangement, includes liquid crystal display (LCD) in beam-path for controlling switchover between dipped-beam and high-beam

Country Status (1)

Country Link
DE (1) DE19910004A1 (en)

Cited By (16)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE10134594A1 (en) * 2001-07-17 2003-01-30 Bayerische Motoren Werke Ag Lighting system for assisting a vehicle driver has a lighting unit, a unit to modulate lighting, sensors to detect a driving situation and a control unit to control lighting modulation through a detected driving situation.
WO2007122544A1 (en) * 2006-04-21 2007-11-01 Koninklijke Philips Electronics N.V. Lamp unit for an adaptive front lighting system for a vehicle
DE102008008484A1 (en) * 2008-02-08 2009-08-13 Volkswagen Ag Headlight for use as e.g. high beam headlight, of two-wheel vehicle, has transparent flat shaped screen disk positioned between light source and transparent covering light disk transverse to light propagation direction
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
DE102008025463A1 (en) * 2008-05-28 2009-12-10 Delvis Gmbh Radiating unit i.e. Xenon-lamp, for head light i.e. motor vehicle head light, has shadowing devices superimposed to radiating surfaces, where shadowing devices are controlled for variable optical shadowing of radiating surfaces
DE202009016729U1 (en) * 2009-12-09 2011-04-28 Heise, Sebastian, Dipl.-Ing. (FH) Lighting device with at least one LED
DE102012112127A1 (en) 2012-12-12 2014-06-12 Hella Kgaa Hueck & Co. Light module for headlight of vehicle, has LCD panel which is partially formed in sections to disable against light passage during electroless state
DE102014001201A1 (en) * 2014-01-29 2015-07-30 Audi Ag Lighting device for a motor vehicle with two types of lighting devices
DE102014105963A1 (en) * 2014-04-29 2015-10-29 Hella Kgaa Hueck & Co. Headlamp arrangement with adjustable lighting range
DE102016011899A1 (en) 2015-10-27 2017-04-27 Merck Patent Gmbh Liquid crystalline medium
DE102016015630A1 (en) 2016-01-25 2017-07-27 Merck Patent Gmbh Liquid crystalline medium
EP2708801A3 (en) * 2012-09-13 2018-04-18 Koito Manufacturing Co., Ltd. Method of controlling vehicle lamp and vehicle lamp
DE102018003171A1 (en) 2017-04-27 2018-10-31 Merck Patent Gmbh Liquid crystalline medium
WO2018219841A1 (en) 2017-05-30 2018-12-06 Merck Patent Gmbh Liquid-crystal medium
DE102017119376A1 (en) * 2017-08-24 2019-02-28 HELLA GmbH & Co. KGaA Method for controlling at least one vehicle component of a vehicle, vehicle system, computer program product and computer-readable medium
DE102013112639B4 (en) * 2013-07-24 2021-01-14 Hyundai Motor Company Headlights for a vehicle that generate glare-free high beam

Cited By (24)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE10134594A1 (en) * 2001-07-17 2003-01-30 Bayerische Motoren Werke Ag Lighting system for assisting a vehicle driver has a lighting unit, a unit to modulate lighting, sensors to detect a driving situation and a control unit to control lighting modulation through a detected driving situation.
WO2007122544A1 (en) * 2006-04-21 2007-11-01 Koninklijke Philips Electronics N.V. Lamp unit for an adaptive front lighting system for a vehicle
DE102008008484A1 (en) * 2008-02-08 2009-08-13 Volkswagen Ag Headlight for use as e.g. high beam headlight, of two-wheel vehicle, has transparent flat shaped screen disk positioned between light source and transparent covering light disk transverse to light propagation direction
DE102008008484B4 (en) 2008-02-08 2022-01-20 Volkswagen Ag Method of controlling a headlamp assembly
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
DE102008025463A1 (en) * 2008-05-28 2009-12-10 Delvis Gmbh Radiating unit i.e. Xenon-lamp, for head light i.e. motor vehicle head light, has shadowing devices superimposed to radiating surfaces, where shadowing devices are controlled for variable optical shadowing of radiating surfaces
US8727552B2 (en) 2009-12-09 2014-05-20 Sebastian Heise Spotlight with diffuser
DE202009016729U1 (en) * 2009-12-09 2011-04-28 Heise, Sebastian, Dipl.-Ing. (FH) Lighting device with at least one LED
EP2708801A3 (en) * 2012-09-13 2018-04-18 Koito Manufacturing Co., Ltd. Method of controlling vehicle lamp and vehicle lamp
DE102012112127A1 (en) 2012-12-12 2014-06-12 Hella Kgaa Hueck & Co. Light module for headlight of vehicle, has LCD panel which is partially formed in sections to disable against light passage during electroless state
DE102012112127B4 (en) 2012-12-12 2024-02-08 HELLA GmbH & Co. KGaA Light module with LCD cover for a vehicle headlight
DE102013112639B4 (en) * 2013-07-24 2021-01-14 Hyundai Motor Company Headlights for a vehicle that generate glare-free high beam
DE102014001201A1 (en) * 2014-01-29 2015-07-30 Audi Ag Lighting device for a motor vehicle with two types of lighting devices
DE102014001201B4 (en) 2014-01-29 2021-10-28 Audi Ag Lighting device for a motor vehicle with two types of lighting devices
DE102014105963A1 (en) * 2014-04-29 2015-10-29 Hella Kgaa Hueck & Co. Headlamp arrangement with adjustable lighting range
DE102016011899A1 (en) 2015-10-27 2017-04-27 Merck Patent Gmbh Liquid crystalline medium
WO2017129216A1 (en) 2016-01-25 2017-08-03 Merck Patent Gmbh Liquid-crystalline medium
DE102016015630A1 (en) 2016-01-25 2017-07-27 Merck Patent Gmbh Liquid crystalline medium
WO2018197444A1 (en) 2017-04-27 2018-11-01 Merck Patent Gmbh Liquid crystal medium
DE102018003171A1 (en) 2017-04-27 2018-10-31 Merck Patent Gmbh Liquid crystalline medium
DE102018003787A1 (en) 2017-05-30 2018-12-06 Merck Patent Gmbh Liquid crystalline medium
WO2018219841A1 (en) 2017-05-30 2018-12-06 Merck Patent Gmbh Liquid-crystal medium
DE102017119376A1 (en) * 2017-08-24 2019-02-28 HELLA GmbH & Co. KGaA Method for controlling at least one vehicle component of a vehicle, vehicle system, computer program product and computer-readable medium

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8122 Nonbinding interest in granting licences declared
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