DE102004005284A1 - Projector unit with variable reflector for headlights of motor vehicles, comprises reflector with fixed horizontal and vertical segments and a movable segment - Google Patents
Projector unit with variable reflector for headlights of motor vehicles, comprises reflector with fixed horizontal and vertical segments and a movable segment Download PDFInfo
- Publication number
- DE102004005284A1 DE102004005284A1 DE200410005284 DE102004005284A DE102004005284A1 DE 102004005284 A1 DE102004005284 A1 DE 102004005284A1 DE 200410005284 DE200410005284 DE 200410005284 DE 102004005284 A DE102004005284 A DE 102004005284A DE 102004005284 A1 DE102004005284 A1 DE 102004005284A1
- Authority
- DE
- Germany
- Prior art keywords
- segment
- projector unit
- reflector
- vehicle
- bundle
- 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- Withdrawn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
- B60Q1/14—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
- B60Q1/1415—Dimming circuits
- B60Q1/1423—Automatic dimming circuits, i.e. switching between high beam and low beam due to change of ambient light or light level in road traffic
- B60Q1/143—Automatic dimming circuits, i.e. switching between high beam and low beam due to change of ambient light or light level in road traffic combined with another condition, e.g. using vehicle recognition from camera images or activation of wipers
-
- 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
- F21S41/67—Illuminating devices specially adapted for vehicle exteriors, e.g. headlamps characterised by a variable light distribution by acting on reflectors
- F21S41/675—Illuminating devices specially adapted for vehicle exteriors, e.g. headlamps characterised by a variable light distribution by acting on reflectors by moving reflectors
-
- 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
- B60Q2300/10—Indexing codes relating to particular vehicle conditions
- B60Q2300/11—Linear movements of the vehicle
- B60Q2300/112—Vehicle speed
-
- 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
- F21S41/68—Illuminating devices specially adapted for vehicle exteriors, e.g. headlamps characterised by a variable light distribution by acting on screens
- F21S41/683—Illuminating devices specially adapted for vehicle exteriors, e.g. headlamps characterised by a variable light distribution by acting on screens by moving screens
Abstract
Description
Bereich der TechnikArea of technology
Die Erfindung betrifft das variable System eines Projektortyps, der in Scheinwerfern für Kraftfahrzeuge verwendet wird und dessen Lichtbündel sich je nach den Fahrtparametern des Fahrzeuges ändert, um eine optimale Beleuchtung der Fahrbahn und der daran angrenzenden Umgebung zu erzielen.The Invention relates to the variable system of a projector type, the in headlights for Motor vehicle is used and its light beam varies depending on the driving parameters of the vehicle changes to optimal lighting of the road and the adjacent To achieve environment.
Die Projektoreinheit des Scheinwerfers für Kraftfahrzeuge ist ein Lichtmodul, das aus einer Lichtquelle, die eine Glühbirne bzw. eine Entladungsröhre sein kann, aus einem festen Rückstrahler, der ein eigenes Lichtbündel bildet (im Folgenden nur Bündel), einer Blende, die dieses Bündel teilweise abschirmt, und aus einem Kondensor, der das Bündel auf die Fahrbahn vor dem Fahrzeug projiziert, besteht.The Projector unit of the headlamp for motor vehicles is a light module, that from a light source, which can be a light bulb or a discharge tube can, from a fixed reflector, which has its own bundle of light forms (hereinafter only bundles), an aperture that this bundle partially shielded, and from a condenser that the bundle on projected the road ahead of the vehicle.
Zur Zeit sind die Scheinwerfer für Kraftfahrzeuge mit Projektoreinheiten mit einem unveränderlichen Austrittsbündel ausgestattet. Eine Ausnahme bilden Einheiten mit einer veränderlichen Abschneidung des Austrittsbündels, das von einem Rückstrahler gebildet wird und das mittels Rotation der Blende um die eigene Achse erzielt wird. Die Blende bildet die Grenze des Abblendlichts, und durch die Veränderung der Höhe dieser Grenze im Hinblick auf das eigene Bündel des Rückstrahlers und durch die folgende Umstellung der ganzen Einheit ändert sich die Gesamtreichweite der Einheit laufend, nicht jedoch die seitliche Streuung und die Helligkeit der Fahrbahn. Ein weiterer Fall eines sich ändernden Austrittsbündels bei Projektoreinheiten sind bifunktionelle Einheiten, bei denen das Abblendlicht zu einem Fernbündel wird und umgekehrt, und zwar aufgrund der Bewegung der Blende gegenüber dem Rückstrahler und dem Kondensor.to Time is the spotlight for Motor vehicles with projector units with a fixed outlet bundle fitted. Units with a variable are an exception Cutting off the exit bundle, that of a reflector is formed by rotating the aperture around your own Axis is achieved. The aperture forms the limit of the low beam, and through the change the height this limit with regard to the reflector's own bundle and by the following Changeover of the whole unit changes the total range of the unit, but not the lateral scatter and the brightness of the road. Another Case of a changing exit bundle at Projector units are bifunctional units in which the low beam to a remote bundle and vice versa, due to the movement of the diaphragm relative to the reflector and the condenser.
Der Nachteil dieser Lösungen mit einer unveränderlichen Aufteilung der Beleuchtung der Fahrbahn und der daran angrenzenden Bereiche ist bei geringen Geschwindigkeiten bzw. auch größeren Richtungsänderungen die Situation, in der der Lenker des Fahrzeuges nicht imstande ist, die nahen Objekte an den Seiten des Fahrzeuges zu erkennen, und umgekehrt müssen bei hohen Geschwindigkeiten die entfernteren Objekte vor dem Fahrzeug nicht ausreichend klar erkennbar sein.The Disadvantage of these solutions with an unchangeable Distribution of the lighting of the road and the adjacent Areas is at low speeds or even major changes in direction the situation in which the driver of the vehicle is unable to recognize the nearby objects on the sides of the vehicle, and vice versa at high speeds, the more distant objects in front of the vehicle not be clearly recognizable.
Das Wesen der ErfindungThe essence the invention
Dieser beschriebene Nachteil wird in einem adaptierbaren System der Projektoreinheit mit variablem Reflektor (PJVR) beseitigt, wobei die Optimalisierung des Austrittslichtbündels durch einen zusammengesetzten Rückstrahler der Projektoreinheit ermöglicht wird, der aus festen Segmenten und mindestens einem beweglichen Segment besteht. Die festen Segmente bewirken die unveränderlichen Teile des Lichtbündels, die beweglichen Segmente bewirken die veränderlichen Bereiche des Bündels, so dass die Aufteilung des resultierenden Bildes, das vom ganzen Rückstrahler gebildet wird, homogen ist. Die horizontalen festen Segmente sind von der optischen Achse der Einheit maximal weggeneigt und bilden somit eine breite seitliche Streuung des Bündels und einen Teil des Fernbündels. Die vertikalen festen Segmente sind von der optischen Achse der Einheit minimal weggeneigt und bilden somit ein reduziertes Vorfeld zusammen mit einem Teil des Fernbündels. Die beweglichen Segmente sind, was die Wegneigung betrifft, zwischen diesen Werten und bilden somit eine reduzierte seitliche Streuung zusammen mit der stärkeren Mitte des Bündels. Für die maximale Geschwindigkeit des Fahrzeuges sind die be weglichen Segmente des variablen Rückstrahlers in horizontaler Stellung, in der sie zur Gänze oder nur zum Teil die horizontalen festen Segmente abdecken, und jeglicher Lichtstrom der Quelle, der auf sie fällt, wird von ihnen auf die entfernten Bereiche um die Mitte der Fahrbahn konzentriert. Das Ergebnis ist die Steigerung der Reichweite des Lichtbündels und damit auch der Fahrtsicherheit bei höheren Geschwindigkeiten. Für die minimale Geschwindigkeit des Fahrzeuges sind die beweglichen Segmente des variablen Rückstrahlers in vertikaler Lage, in der sie ganz oder teilweise vom vertikalen festen Segment zugedeckt sind und in der die horizontalen festen Segmente abgedeckt sind, so dass das gebildete Bündel durch die breite seitliche Streuung, die die nahen Bereiche der Fahrbahn vor dem Fahrzeug und deren Umgebung beleuchtet, charakteristisch ist. Der Übergang der beweglichen Segmente zwischen den beiden äußersten Lagen erfolgt durch eine Rotationsbewegung, wobei diese Segmente sich parallel zueinander oder in entgegengesetzter Richtung bewegen können. Die gleichen Lagen für die maximale und minimale Geschwindigkeit des Fahrzeuges nehmen die beweglichen Segmente auch dann ein, wenn die Blende, die die Grenze des gedämpften Bündels bildet, heruntergeklappt ist und die Projektoreinheit Fernlicht ausstrahlt – bei hohen Geschwindigkeiten ist die seitliche Streuung des Fernbündels eingeschränkt, und die Mitte des Bündels ist verstärkt und umgekehrt. Die Bewegung der Segmente erfolgt mit Hilfe eines Schrittmotors, der von einem Signal des Geschwindigkeitssensors und/oder Lenkradumdrehungssensors gesteuert wird. Als Lichtquelle wird ein Leuchtdraht oder der Bogen einer Entladungsröhre verwendet. Der Kondensor wird von einer asphärischen plankonvexen Linse gebildet, deren Brennpunktfläche in Richtung zur Linse gekrümmt ist, und deshalb ist auch die Blende, die die Grenze des Abblendbündels bildet, gekrümmt.This described disadvantage is eliminated in an adaptable system of the projector unit with a variable reflector (PJVR), the optimization of the exit light beam being made possible by a composite reflector of the projector unit, which consists of fixed segments and at least one movable segment. The fixed segments effect the unchangeable parts of the light beam, the movable segments effect the variable areas of the beam, so that the distribution of the resulting image, which is formed by the entire reflector, is homogeneous. The horizontal fixed segments are inclined as far as possible from the optical axis of the unit and thus form a wide lateral spread of the bundle and part of the remote bundle. The vertical fixed segments are slightly inclined away from the optical axis of the unit and thus form a reduced apron together with part of the remote bundle. The moving segments are between these values as far as the inclination of the path is concerned and thus form a reduced lateral spread together with the stronger center of the bundle. For the maximum speed of the vehicle, the movable segments of the variable reflector are in the horizontal position, in which they cover all or only part of the horizontal fixed segments, and any luminous flux of the source that falls on them is from them to the distant Areas concentrated around the center of the lane. The result is an increase in the range of the light beam and thus also driving safety at higher speeds. For the minimum speed of the vehicle, the movable segments of the variable reflector are in a vertical position, in which they are completely or partially covered by the vertical fixed segment and in which the horizontal fixed segments are covered, so that the bundle formed by the wide lateral scatter, which illuminates the near areas of the road in front of the vehicle and their surroundings. The transition of the movable segments between the two outermost layers takes place by means of a rotational movement, these segments being able to move parallel to one another or in the opposite direction. The movable segments assume the same positions for the maximum and minimum speed of the vehicle even when the aperture, which forms the boundary of the damped beam, is folded down and the projector unit emits high beam - at high speeds, the lateral spread of the beam is restricted, and the middle of the bundle is reinforced and vice versa. The segments are moved with the aid of a stepper motor, which is controlled by a signal from the speed sensor and / or steering wheel rotation sensor. A light wire or the arc of a discharge tube is used as the light source. The condenser is formed by an aspherical plano-convex lens, the focal surface of which is curved towards the lens, and therefore the aperture, which is the limit of the Ab glare bundle forms, curved.
Übersicht über die Figuren auf den ZeichnungenOverview of the Figures on the drawings
Das Wesen der Erfindung wird mit Hilfe der angeschlossenen Zeichnungen näher erläutert:The Essence of the invention will be apparent from the accompanying drawings explained in more detail:
In
In
In
In
In
In
In
In
In
Ausführungsbeispieleembodiments
Ein
Beispiel für
die Projektoreinheit mit variablem Reflektor, der die veränderliche
Aufteilung des Austrittsbündels
sicherstellt, ist ein optisches System, das in
In
der Anfangslage für
die minimale Geschwindigkeit des Fahrzeugs vmin befinden sich beide
bewegliche Segmente
Der Bereich der Rotationswinkel der beweglichen Segmente ist von 0° in der Lage für die maximale Geschwindigkeit des Fahrzeuges vmax bis 80° für die minimale Geschwindigkeit des Fahrzeugs vmin, wobei – aus der Sicht ins Innere des Rückstrahlers gesehen – das rechte bewegliche Segment aus der Lage für die maximale Geschwindigkeit des Fahrzeugs vmax gegen den Uhrzeigersinn rotiert und das linke Segment im Uhrzeigersinn. Dadurch werden die symmetrischen Änderungen des Bündels in der Vertikalen sichergestellt.The The range of rotation angle of the movable segments is capable of 0 ° for the maximum vehicle speed vmax up to 80 ° for the minimum Vehicle speed vmin, whereby - from the point of view inside of the reflector seen - that right moving segment out of position for maximum speed of the vehicle vmax rotates counterclockwise and the left Clockwise segment. This will make the symmetrical changes of the bundle ensured in the vertical.
Auf
die gleiche Weise verhält
sich die Projektoreinheit bei Fernlicht, das durch das Herabklappen der
Blende
Claims (8)
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
CZ20030336A CZ299706B6 (en) | 2003-02-04 | 2003-02-04 | Projector unit provided with variable reflector for motor vehicle headlights |
CZPV2003-336 | 2003-02-04 |
Publications (1)
Publication Number | Publication Date |
---|---|
DE102004005284A1 true DE102004005284A1 (en) | 2004-12-09 |
Family
ID=33438212
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
DE200410005284 Withdrawn DE102004005284A1 (en) | 2003-02-04 | 2004-01-27 | Projector unit with variable reflector for headlights of motor vehicles, comprises reflector with fixed horizontal and vertical segments and a movable segment |
Country Status (2)
Country | Link |
---|---|
CZ (1) | CZ299706B6 (en) |
DE (1) | DE102004005284A1 (en) |
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US7198395B2 (en) * | 2004-09-17 | 2007-04-03 | Koito Manufacturing Co., Ltd. | Vehicle headlamp |
Family Cites Families (5)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPH076564Y2 (en) * | 1990-04-19 | 1995-02-15 | 株式会社小糸製作所 | Variable light distribution vehicle headlights |
FR2727497A1 (en) * | 1994-11-30 | 1996-05-31 | Valeo Vision | BEAM EXTENSION PROJECTOR, PARTICULARLY FOR MOTOR VEHICLE |
FR2767182B1 (en) * | 1997-08-11 | 1999-09-03 | Valeo Vision | VARIABLE BEAM PROJECTOR, ESPECIALLY FOR VEHICLES |
FR2777976B1 (en) * | 1998-04-23 | 2000-06-09 | Valeo Vision | VARIABLE BEAM PROJECTOR, PARTICULARLY FOR VEHICLES, AND ASSEMBLY OF PROJECTORS OF THIS TYPE |
JP2001014908A (en) * | 1999-06-28 | 2001-01-19 | Stanley Electric Co Ltd | Projector type headlight |
-
2003
- 2003-02-04 CZ CZ20030336A patent/CZ299706B6/en not_active IP Right Cessation
-
2004
- 2004-01-27 DE DE200410005284 patent/DE102004005284A1/en not_active Withdrawn
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US7198395B2 (en) * | 2004-09-17 | 2007-04-03 | Koito Manufacturing Co., Ltd. | Vehicle headlamp |
Also Published As
Publication number | Publication date |
---|---|
CZ2003336A3 (en) | 2007-01-31 |
CZ299706B6 (en) | 2008-10-29 |
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Legal Events
Date | Code | Title | Description |
---|---|---|---|
OP8 | Request for examination as to paragraph 44 patent law | ||
R120 | Application withdrawn or ip right abandoned |
Effective date: 20110802 |