EP3899354B1 - Motor vehicle headlamp and lighting device for a motor vehicle headlamp - Google Patents

Motor vehicle headlamp and lighting device for a motor vehicle headlamp Download PDF

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Publication number
EP3899354B1
EP3899354B1 EP19817376.7A EP19817376A EP3899354B1 EP 3899354 B1 EP3899354 B1 EP 3899354B1 EP 19817376 A EP19817376 A EP 19817376A EP 3899354 B1 EP3899354 B1 EP 3899354B1
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EP
European Patent Office
Prior art keywords
light
segment
light distribution
segments
lighting device
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EP19817376.7A
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German (de)
French (fr)
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EP3899354A1 (en
Inventor
Bettina REISINGER
Nina Brauner
Marina FISCHER
Matthäus Artmann
Lukas Taudt
Stefan MIEDLER
Thomas Reiter
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ZKW Group GmbH
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ZKW Group GmbH
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Classifications

    • 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
    • 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
    • F21S41/10—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]
    • F21S41/151—Light emitting diodes [LED] arranged in one or more lines
    • F21S41/153—Light emitting diodes [LED] arranged in one or more lines arranged in a matrix
    • 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
    • F21S41/25—Projection lenses
    • 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
    • F21S41/25—Projection lenses
    • F21S41/255—Lenses with a front view of circular or truncated circular outline

Definitions

  • N 2, 3, 4 or greater
  • the invention further relates to a motor vehicle headlight with at least one such lighting device.
  • segment light distribution is to be understood as meaning a segmented light distribution, as is known from the prior art, in which the light distribution consists of several light segments which are arranged one above the other, in columns and next to one another, in rows.
  • the individual light segments can be switched on or off independently of the other light segments of the light distribution; it can also be provided that the individual light segments are dimmable, in particular dimmable independently of the other light segments.
  • An “arrangement in columns” is understood to mean that light segments of a column of a segment light distribution lie directly above one another in the sense that they are not laterally (horizontally) offset from one another, and all light segments of a column have identical widths. Likewise, all light segments in a line of a segment light distribution have the same height and are directly next to each other in the sense that they are not offset from one another in the vertical direction.
  • Projection modules for generating segmented light distributions are known from the prior art, in which the light segments in the lines are spaced apart from one another, ie two light segments in a line are each separated from one another by an unilluminated area.
  • the documents US 2013/169154 A1 and DE 10 2005 041234 A1 disclose known projection modules.
  • projection modules are used in which the light segments that are generated with a projection module lie against one another or slightly overlap one another, both within the lines and between the lines.
  • narrow, dark, and rarely bright, stripes often appear between the individual light segments, which form a grid-shaped structure in the light image of a projection module. This can be desirable, but is usually undesirable, as is the case with the present invention.
  • the person skilled in the art knows solutions to avoid such a grid structure in a segmented light image.
  • projection modules that generate such a segmented light distribution, which are used, for example, to generate a fully-fledged adaptive low beam and/or high beam and/or highway light, or generally an adaptive light distribution that can switch between high beam and low beam depending on the situation, possibly also a highway light can generate, and/or depending on the situation, areas in front of the vehicle to avoid dazzling those driving in front Vehicles or vehicles in oncoming traffic can be hidden despite high beam operation, the desired performance in terms of resolution, luminous flux and maximum light distribution can meet the customer's requirements.
  • the projection modules used for this are comparatively large; for example, the projection lenses of such projection modules have dimensions of approximately 80 mm x 50 mm.
  • modern headlight designs increasingly require smaller, especially flat projection modules with heights of ⁇ 25mm or often even ⁇ 20mm.
  • customers often have different requirements and wishes for the light output and the resolution of such motor vehicle headlights.
  • optically identical is preferably understood to mean that two modules, in particular projection modules, which are “optically identical” form identical light distributions when arranged in an identical position and with an identical orientation, in particular also the individual light segments of the projection modules are designed identically, are located in the same place in the photograph and have the same light values (light distribution, brightness, etc.).
  • each shifted light distribution Compared to the first case, it is shifted by a whole main segment width, or by 2 main segment widths, etc. In this way, the overall width of the light distribution can be increased.
  • n 2, ..., N, in the vertical direction with respect to the output segment light distribution by the same amount and in the same direction, preferably vertically upwards, are shifted.
  • At least one of the segment light distributions is arranged in the vertical direction in such a way that light segments of at least one line extend downwards starting from a straight line lying below the H-H line in the light image and the light segments extend from at least one line of the light segments of the straight line extend upwards, the straight line preferably being 0.57° below the line H-H.
  • a low beam distribution can be created or an area on the light-dark boundary of the low beam distribution can be illuminated.
  • the other segment light distributions can be shifted in the vertical direction in such a way that a dividing line between two rows of light segments of the other light distributions lies above the straight line, the dividing line preferably being below the H-H line, preferably 0.23° below the H-H line .
  • a highway light distribution can be created.
  • all light segments of the segment light distributions below 0.57° and all below 0.23° are activated, so that the light-dark limit is raised to -0.23° compared to a low beam distribution.
  • some high beam light segments can also be activated for the right edge of the road, i.e. light segments that lie above these boundary lines of -0.57° and -0.23°.
  • the light segments of a segment light distribution are essentially square or preferably essentially rectangular.
  • light segments of a segment light distribution which lie completely below the H-H line, in particular below one of the straight lines, have a lower height, i.e. a smaller extent in the vertical direction, than light segments lying above them.
  • the vertically “short” light segments lie at the bottom of the light image, while the “longer” light segments, especially in the middle of the light distribution (i.e. around the HV area), realize a desired upward trend in the high beam distribution.
  • all light segments of a segment light distribution have identical width, namely the main segment width, BR.
  • the light segments of a line of a segment light distribution have different widths, with preferably light segments which lie centrally in the area of the line V-V having a first width, BR, and light segments which lie laterally when viewed in the horizontal direction , have a second width BR'.
  • this central area extends horizontally to the left and right of the line V-V (which is at 0° horizontal) over a range of -30° to +30°, or over a range of -20° to +20°, or over a range from -15° to +15°.
  • a width of a light segment which lies centrally next to one another together with one or more light segments of a segment light distribution approximately in the area of the line V-V, defines the main segment width, BR.
  • the central area of the light distribution around the point HV is more important than the edge areas, so this area is also preferably used to determine the shift in the segment light distributions.
  • the second width for the edge regions is greater than the first width in the central region.
  • the light segments of a segment light distribution are symmetrical with respect to the V-V axis in the light image.
  • the light segments of a segment light distribution of half of a line are mirrored about the axis V-V.
  • the projection modules each have an optical axis, and a shift of a segment light distribution with respect to the output segment light distribution results from the optical axis of the projection module generating the shifted segment light distribution being shifted both by a horizontal angle as well as inclined by a vertical angle against the optical axis of the output projection module.
  • Each of the projection modules which generates a shifted segment light distribution, is rotated by a corresponding horizontal and vertical angle.
  • the lighting device according to the invention can be designed as a motor vehicle headlight, or one or more lighting devices according to the invention are arranged in a motor vehicle headlight.
  • Figure 1 shows an example of a lighting device 1 with two projection modules 10, 20, in which only the secondary optics in the form of projection lenses 12, 22 can be seen in this view.
  • Each of the projection modules 10, 20 has an optical axis OA1, OA2, with the optical axis OA1, OA2 essentially characterizing the main light exit direction, for example.
  • FIG 2 shows the lighting device 1 again Figure 1 , now with the holder for the projection lens 12, 22 removed - which is irrelevant for understanding the invention, so that the view of the primary optics 11, 21 of the respective projection module 10, 20 is released.
  • Each of the primary optics 11, 21 has a light exit surface 11a, 21a, in which a segmented intermediate light image can be formed, which lies from the associated secondary optics, whose focal plane or Petzval surface is in the area of the light exit surface 11a, 21a of the assigned primary optics 11, 21 , can be imaged as a segment light distribution in an area in front of the lighting device 1, for example on a road in front of a motor vehicle or on a measuring screen, approximately 25 meters away.
  • the Figures 3 and 4 show a projection module 10 from the Figures 1 and 2 in a more detailed view.
  • the primary optics 11 consists in a known manner of an optical body which has several light guides, with a separate light source 100 being able to couple light into each of the light guides.
  • each light source can include an LED or consist of an LED.
  • the light guides consist, for example, of an optically transparent, light-conducting material in which the light from the light sources can propagate and is, for example, totally reflected on the boundary walls. The light guides converge into the common light exit surface 11a and produce a segment light distribution, as already discussed in the introduction to the description.
  • Projection module 10 shown is a preferably used module; in principle, any projection module that can generate a segment light distribution as described at the beginning can be used.
  • Figure 5 shows two identical projection modules 10, 20, as shown in Figures 3 and 4 described. With an imaginary identical arrangement, ie identical alignment and positioning in the same location, these projection modules 10, 20 would be identical, Generate congruent segment light distributions.
  • the light sources of the second projection module 20 are designated “200”.
  • the optical axis OA2 of the second projection module 20 is inclined both by a horizontal angle ⁇ and by a vertical angle ⁇ relative to the optical axis OA1 of the first, so-called output projection module 10, whereby the segment light distribution of the second projection module 20 compared to that of the first projection module 10 is shifted as described in more detail below.
  • the arrangement of the projection modules 10, 20 next to each other is purely an example. At a distance of, for example, 25 meters on a measuring screen, i.e. in the far field, the specific position of the individual projection modules, i.e. a local offset of the modules from one another, is negligible; the orientation of the optical axis OA1, OA2 is crucial.
  • Figure 6 shows a segment light distribution LV10 ("output segment light distribution"), generated with the first or output projection module 10.
  • the lines HH (or axis H) and VV (or axis V) identify the horizontal in a known manner 0°-0° and the vertical 0°-0° line to represent light distributions.
  • the segment light distribution LV10 consists of several rectangular light segments SEG10, which in this example are arranged in two rows Z101, Z102 and thirteen columns S1001 ... S1013. These numbers are chosen purely as an example to explain the invention; more or fewer columns and rows can also be used, although preferably at least 2 rows and at least 2 columns are provided.
  • All light segments have the same width (extent in the horizontal direction) BR, the so-called main segment width BR, for example the width can be 2.4°, preferably also 1.2°.
  • a straight line G1 can be seen, which separates the two lines Z101, Z102 from each other.
  • the straight line G1 is preferably 0.57° below the line H-H.
  • Figure 7 shows a segment light distribution LV20, generated with the second projection module 20.
  • the segment light distribution LV20 would be optically identical to the segment light distribution LV10, but is already in the light image according to the invention, both in horizontally and vertically, and consists of several rectangular light segments SEG20, which are arranged in two rows Z201, Z202 and thirteen columns S2001 ... S2013. All light segments SEG20 have the same width (extent in the horizontal direction) BR, the so-called main segment width BR.
  • Figure 8 shows a light distribution LV as an inventive superposition of the segment light distributions LV10, LV20, preferably by rotating the projection modules 10, 20 as in Figure 5 shown.
  • the second segment light distribution LV20 is also shifted upwards by a value VSv.
  • the vertical displacement VSv is preferably selected such that a second straight line G2, which separates the two lines Z201, Z202 from each other, is 0.23° below the line H-H.
  • straight lines G1 and G2 only differ from one another when the segment light distributions are shifted relative to one another. If the projection modules 10, 20 were aligned identically, the straight lines G1, G2 would coincide.
  • the illuminance can be specifically controlled and this results in a high resolution, particularly in the horizontal direction, which increases with the number of projection modules used, so that By specifically activating and deactivating certain light segments of the individual segment light distributions, desired light distributions, such as low beam, highway light and high beam as well as various blanking scenarios, can be achieved.
  • Figure 10 shows the light distribution LV again Figure 8 , together with an apron light distribution VFL, which is generated by a further lighting device, not shown;
  • This apron light distribution VFL is preferably always activated, in particular not segmented, and preferably forms homogeneous illumination in the "close range" (for example up to 45m) in front of the motor vehicle.
  • the apron light distribution VFL preferably connects to the (adaptive) light distribution LV approximately below the straight line G1.
  • FIG 11 finally shows two special cases of the present invention.
  • all light segments have identical width BR.
  • the light segments SEG all have a first, identical width BR
  • further light segments SEG', SEG" are provided on the left and right, which have a second width BR'.
  • the second width BR' is larger than the first width.
  • the first width BR defines the main segment width, and two or more identical such segment light distributions SLV as in Figure 11 can then be shown analogously to the above using the Figures 6 to 9 be superimposed to form a, in particular adaptive, light distribution.
  • the left area with the light segments SEG' is shown in dotted lines
  • the right area with the light segments SEG" is shown in dashed lines.
  • a first segment light distribution SLV for example, only on the left side, next to the central area of the light segments SEG, wider light segments SEG '.
  • a further segment light distribution SLV which can be moved according to the invention, has, in addition to the central area, wider light segments SEG "only on the right side, etc.
  • optical identical is to be understood to mean that two modules, in particular projection modules, which are “optically identical", when arranged in an identical position and with an identical orientation, have identical light distributions only in the central area (as exemplified in the introduction to the description is discussed), in particular the individual light segments in the central area of the Projection modules are designed identically, are located in the same place in the photograph and have the same light values (light distribution, brightness, etc.).
  • “optically identical” modules can generate different light segment distributions, for example, as described above, a first, and possibly third, fifth, etc. module only has wider light segments to the left of the central area, and the second, and if necessary fourth, sixth etc.
  • a light distribution to the left of the central area (eg the first segment light distribution) is mirrored around the VV axis in order to form the light distribution to the right of the central area (eg the second segment light distribution).
  • Such "optically identical" light distributions can either be generated with identical, in particular identical, projection modules, with each light module not operating certain light sources that would produce unused light segments, or the projection modules are each adapted accordingly, so that one for the odd-numbered segment light distributions first type of identical projection modules and for the even-numbered segment light distributions a second type of identical projection modules is used.

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  • Engineering & Computer Science (AREA)
  • General Engineering & Computer Science (AREA)
  • Physics & Mathematics (AREA)
  • Microelectronics & Electronic Packaging (AREA)
  • Optics & Photonics (AREA)
  • Mathematical Physics (AREA)
  • Non-Portable Lighting Devices Or Systems Thereof (AREA)

Description

Die Erfindung betrifft eine Beleuchtungsvorrichtung für einen Kraftfahrzeugscheinwerfer zum Erzeugen einer Lichtverteilung, insbesondere einer adaptiven Lichtverteilung, z.B. einer adaptiven Abblendlicht- und Fernlichtverteilung, oder eines Teiles einer solche Lichtverteilung, wobei die Beleuchtungsvorrichtung eine Anzahl N von Projektionsmodulen umfasst, mit N = 2, 3, 4 oder größer als 4, wobei jedes der Projektionsmodule dazu eingerichtet ist, eine Segment-Lichtverteilung zu erzeugen, wobei eine Segment-Lichtverteilung aus mehreren Lichtsegmenten gebildet ist, und wobei die Lichtsegmente der Segment-Lichtverteilung in zwei oder mehreren im Wesentlichen horizontalen Zeilen und in zwei oder mehreren Spalten liegen, wobei die Lichtsegmente derart liegen, dass bei Aktivierung aller Lichtsegmente der Segment-Lichtverteilung zwischen den Zeilen und den Spalten im Wesentlichen keine dunklen oder hellen Streifen gebildet sind, und wobei jedes Lichtsegment der Segment-Lichtverteilung unabhängig von den anderen Segmenten der Segment-Lichtverteilung aktiviert oder deaktiviert werden kann, und wobei in jeder Zeile mehrere Segmente, die sogenannten Hauptsegmente, identische Haupt-Segmentbreite, BR, aufweisen, und wobei alle Projektionsmodule in optischer Hinsicht identisch ausgebildet sind.The invention relates to a lighting device for a motor vehicle headlight for generating a light distribution, in particular an adaptive light distribution, e.g. an adaptive low beam and high beam distribution, or a part of such a light distribution, the lighting device comprising a number N of projection modules, with N = 2, 3, 4 or greater than 4, wherein each of the projection modules is configured to generate a segment light distribution, wherein a segment light distribution is formed from a plurality of light segments, and wherein the light segments of the segment light distribution are arranged in two or more substantially horizontal lines and in two or more columns, the light segments being located such that when all light segments of the segment light distribution are activated, essentially no dark or light stripes are formed between the rows and the columns, and each light segment of the segment light distribution is independent of the other segments the segment light distribution can be activated or deactivated, and wherein in each row several segments, the so-called main segments, have identical main segment width, BR, and wherein all projection modules are designed to be identical in optical terms.

Weiters betrifft die Erfindung einen Kraftfahrzeugscheinwerfer mit zumindest einer solchen Beleuchtungsvorrichtung.The invention further relates to a motor vehicle headlight with at least one such lighting device.

Unter dem Begriff "Segment-Lichtverteilung" ist eine segmentierte Lichtverteilung, wie sie aus dem Stand der Technik bekannt ist, zu verstehen, bei der die Lichtverteilung aus mehreren Lichtsegmenten, die übereinander, in Spalten und nebeneinander, in Zeilen angeordnet sind, zu verstehen. Die einzelnen Lichtsegmente können unabhängig von den andere Lichtsegmenten der Lichtverteilung ein- oder ausgeschaltet werden, es kann auch vorgesehen sein, dass die einzelnen Lichtsegmente dimmbar, insbesondere unabhängig von den anderen Lichtsegmenten, dimmbar sind.The term “segment light distribution” is to be understood as meaning a segmented light distribution, as is known from the prior art, in which the light distribution consists of several light segments which are arranged one above the other, in columns and next to one another, in rows. The individual light segments can be switched on or off independently of the other light segments of the light distribution; it can also be provided that the individual light segments are dimmable, in particular dimmable independently of the other light segments.

Wenn hier von Lichtsegmenten oder Lichtverteilungen, die ein- oder ausgeschaltet oder gedimmt werden können, so versteht es sich für den Fachmann, dass dazu in der Regel die jeweilige(n) Lichtquelle(n), welche zur Erzeugung des jeweiligen Lichtsegmentes (oder der Lichtverteilung) verwendet wird bzw. werden, ein- oder ausgeschaltet oder gedimmt werden.If we are talking about light segments or light distributions that can be switched on or off or dimmed, it will be understood by the person skilled in the art that this usually involves the respective light source(s) which are used to generate the respective light segment (or the Light distribution) is or will be used, switched on or off or dimmed.

Je höher die Anzahl der Lichtsegmente in horizontaler Richtung, also innerhalb der Zeilen ist, desto höher ist die Auflösung in horizontaler Richtung. Gleiches gilt für die Anzahl der Lichtsegmente in vertikaler Richtung, also in den Spalten, und die Auflösung in vertikaler Richtung.The higher the number of light segments in the horizontal direction, i.e. within the lines, the higher the resolution in the horizontal direction. The same applies to the number of light segments in the vertical direction, i.e. in the columns, and the resolution in the vertical direction.

Unter einer "Anordnung in Spalten" wird verstanden, dass Lichtsegmente einer Spalte einer Segment-Lichtverteilung direkt übereinander liegen in dem Sinne, dass sie nicht seitlich (horizontal) zueinander versetzt sind, und alle Lichtsegmente einer Spalte identische Breite aufweisen. Genauso weisen alle Lichtsegmente einer Zeile einer Segment-Lichtverteilung dieselbe Höhe auf und liegen direkt nebeneinander in dem Sinn, dass sie in vertikaler Richtung nicht zueinander versetzt sind.An “arrangement in columns” is understood to mean that light segments of a column of a segment light distribution lie directly above one another in the sense that they are not laterally (horizontally) offset from one another, and all light segments of a column have identical widths. Likewise, all light segments in a line of a segment light distribution have the same height and are directly next to each other in the sense that they are not offset from one another in the vertical direction.

Aus dem Stand der Technik sind Projektionsmodule zur Erzeugung von segmentierten Lichtverteilungen bekannt, bei welchen die Lichtsegmente in den Zeilen zueinander beabstandet sind, d.h. zwei Lichtsegmente einer Zeile sind jeweils durch einen nicht beleuchteten Bereich voneinander getrennt. Die Dokumente US 2013/169154 A1 und DE 10 2005 041234 A1 offenbaren bekannte Projektionsmodule.Projection modules for generating segmented light distributions are known from the prior art, in which the light segments in the lines are spaced apart from one another, ie two light segments in a line are each separated from one another by an unilluminated area. The documents US 2013/169154 A1 and DE 10 2005 041234 A1 disclose known projection modules.

Bei der vorliegenden Erfindung hingegen kommen Projektionsmodule zum Einsatz, bei welchen die Lichtsegmente, die mit einem Projektionsmodul erzeugt werden, aneinander anliegen oder einander geringfügig überlappen, sowohl innerhalb der Zeilen, also auch zwischen den Zeilen. Häufig treten bei solchen Projektionsmodulen zwischen den einzelnen Lichtsegmenten schmale, dunkle, seltener helle Streifen auf, die im Lichtbild eines Projektionsmoduls eine gitterförmige Struktur bilden. Dies kann erwünscht sein, ist in der Regel aber unerwünscht, so auch bei der vorliegenden Erfindung. Der Fachmann kennt Lösungen, um eine solche Gitterstruktur in einem segmentierten Lichtbild zu vermeiden.In the present invention, however, projection modules are used in which the light segments that are generated with a projection module lie against one another or slightly overlap one another, both within the lines and between the lines. In such projection modules, narrow, dark, and rarely bright, stripes often appear between the individual light segments, which form a grid-shaped structure in the light image of a projection module. This can be desirable, but is usually undesirable, as is the case with the present invention. The person skilled in the art knows solutions to avoid such a grid structure in a segmented light image.

Bei derzeit verwendeten Projektionsmodule, die eine solche segmentiere Lichtverteilung erzeugen, die beispielsweise zur Erzeugung eines vollwertigen adaptiven Abblend- und/oder Fernlichts und/oder Autobahnlichtes dienen, oder generell einer adaptiven Lichtverteilung, die situationsabhängig zwischen Fernlicht und Abblendlicht umschalten kann, gegebenenfalls auch ein Autobahnlicht erzeugen kann, und/oder situationsbedingt Bereiche vor dem Fahrzeug zur Vermeidung der Blendung von vorausfahrenden Fahrzeugen oder Fahrzeugen des Gegenverkehrs trotz Fernlichtbetriebes ausblenden kann, kann die gewünschte Performance hinsichtlich Auflösung, Lichtstrom und Maximum der Lichtverteilung die Anforderungen der Kunden erfüllen. Allerdings sind die dafür verwendeten Projektionsmodule vergleichsweise groß, beispielsweise weisen die Projektionslinsen solcher Projektionsmodule Abmessungen von ca. 80 mm x 50 mm. Allerdings erfordern moderne Scheinwerferdesigns zunehmend kleinere, insbesondere flache Projektionsmodule mit Bauhöhen von < 25mm oder häufig sogar <20mm. Außerdem bestehen von Kundenseite häufig unterschiedliche Anforderungen und Wünsche an die Lichtleistung sowie hinsichtlich der Auflösung solcher Kraftfahrzeugscheinwerfer.In currently used projection modules that generate such a segmented light distribution, which are used, for example, to generate a fully-fledged adaptive low beam and/or high beam and/or highway light, or generally an adaptive light distribution that can switch between high beam and low beam depending on the situation, possibly also a highway light can generate, and/or depending on the situation, areas in front of the vehicle to avoid dazzling those driving in front Vehicles or vehicles in oncoming traffic can be hidden despite high beam operation, the desired performance in terms of resolution, luminous flux and maximum light distribution can meet the customer's requirements. However, the projection modules used for this are comparatively large; for example, the projection lenses of such projection modules have dimensions of approximately 80 mm x 50 mm. However, modern headlight designs increasingly require smaller, especially flat projection modules with heights of <25mm or often even <20mm. In addition, customers often have different requirements and wishes for the light output and the resolution of such motor vehicle headlights.

Es ist eine Aufgabe der Erfindung, eine Lösung dafür anzugeben, wie segmentierte Lichtverteilungen, insbesondere zur Erzeugung einer adaptiven Lichtverteilung, insbesondere mittels flacher Projektionsmodule erzeugt werden können.It is an object of the invention to provide a solution for how segmented light distributions can be generated, in particular for generating an adaptive light distribution, in particular by means of flat projection modules.

Diese Aufgabe wird mit einer eingangs genannten Beleuchtungsvorrichtung dadurch gelöst, dass erfindungsgemäß die Projektionsmodule derart zueinander angeordnet sind, dass ausgehend von einem ersten Projektionsmodul, dem sogenannten Ausgangs-Projektionsmodul, welches eine sogenannte Ausgangs-Segment-Lichtverteilung erzeugt, die Segment-Lichtverteilungen der weiteren Projektionsmodule in eine, insbesondere in eine gemeinsame horizontale Richtung seitlich verschoben sind, wobei das Ausmaß der Verschiebung, VSh, der n-ten Segment-Lichterteilung des n-ten Projektionsmoduls (20) in dieser horizontalen Richtung proportional zu (n - 1)/N mal der Hauptsegmentbreite, BR, ist, mit n = 2, ..., N, und wobei zumindest eine der n-ten Segment-Lichtverteilungen, n = 2, ..., N, in vertikaler Richtung in Bezug auf die Ausgangs-Segment-Lichtverteilung nach oben oder unten verschoben ist.This object is achieved with a lighting device mentioned at the beginning in that, according to the invention, the projection modules are arranged relative to one another in such a way that, starting from a first projection module, the so-called output projection module, which generates a so-called output segment light distribution, the segment light distributions of the further projection modules are laterally shifted in one, in particular in a common, horizontal direction, the extent of the shift, VSh, of the nth segment light distribution of the nth projection module (20) in this horizontal direction being proportional to (n - 1)/N times is the main segment width, BR, with n = 2, ..., N, and where at least one of the nth segment light distributions, n = 2, ..., N, in the vertical direction with respect to the output segment -Light distribution is shifted up or down.

Unter dem Begriff "optisch identisch" wird in dem vorliegenden Zusammenhang vorzugsweise verstanden, dass zwei Module, insbesondere Projektionsmodule, die "optisch identisch" sind, bei Anordnung an identer Position und bei identer Ausrichtung identische Lichtverteilungen bilden, wobei insbesondere auch die einzelnen Lichtsegmenten der Projektionsmodule identisch ausgestaltet sind, an identer Stelle im Lichtbild liegen und dieselben Lichtwerte (Lichtverteilung, Helligkeit, etc.) aufweisen.In the present context, the term “optically identical” is preferably understood to mean that two modules, in particular projection modules, which are “optically identical” form identical light distributions when arranged in an identical position and with an identical orientation, in particular also the individual light segments of the projection modules are designed identically, are located in the same place in the photograph and have the same light values (light distribution, brightness, etc.).

Dies wird erfindungsgemäß dadurch erreicht werden, dass die Module identisch, d.h. nicht nur in optischer Hinsicht identisch, ausgebildet sind.According to the invention, this will be achieved in that the modules are designed to be identical, ie not just identical in optical terms.

Mit der erfindungsgemäßen Lösung, bei der zwei oder mehr Projektionsmodule zur Erzeugung der Lichtverteilung verwendet werden, können kleinere Projektionsmodule verwendet werden, die zusammen die notwendige Lichtmenge liefern, flexibel angeordnet werden können, und durch die erfindungsgemäße Überlagerung der Segment-Lichtverteilungen kann eine adaptive Lichtverteilung mit gewünschter Auslösung bereit gestellt werden, die je nach verwendeten Projektionsmodule gemeinsam auch verschiedene Lichtverteilungen (Abblendlicht, Fernlicht, Autobahnlicht, Teil-Fernlicht) erzeugen kann.With the solution according to the invention, in which two or more projection modules are used to generate the light distribution, smaller projection modules can be used, which together provide the necessary amount of light, can be arranged flexibly, and by superimposing the segment light distributions according to the invention, an adaptive light distribution can be achieved desired triggering can be provided, which can also produce different light distributions (low beam, high beam, highway light, partial high beam) depending on the projection modules used.

Je größer dabei die Anzahl der verbauten Projektionsmodule in einer Beleuchtungsvorrichtung ist, desto höher können die erzielbare Auflösung, die erzielbare maximale Beleuchtungsstärke [lx] bzw. die Lichtstärke [cd] und der erzeugte Lichtstrom sein.The larger the number of projection modules installed in a lighting device, the higher the achievable resolution, the achievable maximum illuminance [lx] or the luminous intensity [cd] and the luminous flux generated can be.

Vorteilhafte Ausgestaltungen der Erfindung sind im Folgenden näher dargestellt.Advantageous embodiments of the invention are presented in more detail below.

Konkret kann z.B. vorgesehen sein, dass die n-te Segment-Lichtverteilung um einen Wert VSh(n) = (n - 1)/N x BR, n = 2, ..., N, in der horizontalen Richtung verschoben ist.Specifically, it can be provided, for example, that the nth segment light distribution is shifted in the horizontal direction by a value VSh(n) = (n - 1)/N x BR, n = 2, ..., N.

Es kann auch vorgesehen sein, dass die n-te Segment-Lichtverteilung um einen Wert VSh(n) = m x BR + (n - 1)/N x BR, n = 2, ..., N, m = 0, 1, oder 2, oder 3, oder größer 3, in horizontaler Richtung verschoben ist.It can also be provided that the nth segment light distribution is increased by a value VSh(n) = m x BR + (n - 1)/N x BR, n = 2, ..., N, m = 0, 1 , or 2, or 3, or greater than 3, is shifted in the horizontal direction.

Während in ersterem Fall die Segment-Lichtverteilungen nur geringfügig verschoben sind, sodass sich über annähernd die gesamte Breite der so erzeugten Gesamtlichtverteilung eine hohe Auflösung ergibt (wobei die Auflösung natürlich weiters noch von der Anzahl N) abhängt, ist in dem zweiten Fall jede verschobene Lichtverteilung im Vergleich zu dem ersten Fall noch um eine ganze Hauptsegmentbreite, oder um 2 Hauptsegmentbreiten, etc. verschoben. Auf diese Weise kann die Gesamtbreite der Lichtverteilung vergrößert werden.While in the first case the segment light distributions are only slightly shifted, so that a high resolution results over almost the entire width of the overall light distribution generated in this way (although the resolution of course also depends on the number N), in the second case each shifted light distribution Compared to the first case, it is shifted by a whole main segment width, or by 2 main segment widths, etc. In this way, the overall width of the light distribution can be increased.

Weiters kann vorgesehen sein, dass alle der n-ten Segment-Lichtverteilungen, n = 2, ..., N, in vertikaler Richtung in Bezug auf die Ausgangs-Segment-Lichtverteilung um denselben Betrag und in dieselbe Richtung, vorzugsweise vertikal nach Oben, verschoben sind.Furthermore, it can be provided that all of the nth segment light distributions, n = 2, ..., N, in the vertical direction with respect to the output segment light distribution by the same amount and in the same direction, preferably vertically upwards, are shifted.

Während also in horizontaler Richtung alle Segment-Lichtverteilungen um unterschiedliche Werte verschoben sind, können in vertikaler Richtung alle verschobenen Segment-Lichtverteilungen um denselben Betrag verschoben sein.So while in the horizontal direction all segment light distributions are shifted by different values, in the vertical direction all shifted segment light distributions can be shifted by the same amount.

Es kann vorgesehen sein, dass in vertikaler Richtung zumindest eine der Segment-Lichtverteilungen derart angeordnet ist, dass sich Lichtsegmente zumindest einer Zeile beginnend bei einer unterhalb der H-H-Linie im Lichtbild liegenden Gerade nach unten erstrecken und sich die Lichtsegmente zumindest einer Zeile der Lichtsegmente von der Geraden nach oben erstrecken, wobei die Gerade vorzugsweise 0,57° unterhalb der Linie H-H liegt.It can be provided that at least one of the segment light distributions is arranged in the vertical direction in such a way that light segments of at least one line extend downwards starting from a straight line lying below the H-H line in the light image and the light segments extend from at least one line of the light segments of the straight line extend upwards, the straight line preferably being 0.57° below the line H-H.

Mit der unterhalb der unterhalb von 0,57° liegenden Zeile kann entsprechend eine Abblendlichtverteilung erzeugt oder ein an der Hell-Dunkel-Grenze der Abblendlichtverteilung liegender Bereich beleuchtet werden.With the line below the line below 0.57°, a low beam distribution can be created or an area on the light-dark boundary of the low beam distribution can be illuminated.

Die anderen Segment-Lichtverteilungen können in vertikaler Richtung derart verschoben sein, dass eine Trennlinie zwischen zwei Zeilen von Lichtsegmenten der anderen Lichtverteilungen oberhalb der Geraden liegt, wobei vorzugsweise die Trennlinie unterhalb der H-H-Linie, vorzugsweise 0,23° unterhalb der H-H-Linie liegt.The other segment light distributions can be shifted in the vertical direction in such a way that a dividing line between two rows of light segments of the other light distributions lies above the straight line, the dividing line preferably being below the H-H line, preferably 0.23° below the H-H line .

Auf diese Weise kann z.B. eine Autobahnlicht-Lichtverteilung erzeugt werden. Beispielsweise sind dazu alle Lichtsegmente der Segment-Lichtverteilungen unter von 0,57° und alle unterhalb von 0,23° aktiviert, sodass gegenüber eine Abblendlichtverteilung die Hell-Dunkel-Grenze auf -0,23° angehoben wird. Gegebenenfalls können (bei Rechtsverkehr) für den rechten Fahrbahnrand auch einige Fernlicht-Lichtsegmente, d.h. Lichtsegmente, die oberhalb dieser Grenzlinien von -0,57° und -0,23° liegen, aktiviert sein.In this way, for example, a highway light distribution can be created. For example, all light segments of the segment light distributions below 0.57° and all below 0.23° are activated, so that the light-dark limit is raised to -0.23° compared to a low beam distribution. If necessary (in right-hand traffic) some high beam light segments can also be activated for the right edge of the road, i.e. light segments that lie above these boundary lines of -0.57° and -0.23°.

Beispielsweise sind die Lichtsegmente einer Segment-Lichtverteilung im Wesentlichen quadratisch oder vorzugsweise im Wesentlichen rechteckförmig ausgebildet.For example, the light segments of a segment light distribution are essentially square or preferably essentially rectangular.

Bevorzugt ist vorgesehen, dass Lichtsegmente einer Segment-Lichtverteilung, welche vollständig unterhalb der H-H-Linie, insbesondere unterhalb einer der Geraden liegen, eine geringere Höhe, also eine geringere Erstreckung in vertikaler Richtung aufweisen als darüber liegende Lichtsegmente.It is preferably provided that light segments of a segment light distribution, which lie completely below the H-H line, in particular below one of the straight lines, have a lower height, i.e. a smaller extent in the vertical direction, than light segments lying above them.

Die vertikal "kurzen" Lichtsegmente liegen im Lichtbild unten, während die "längeren" Lichtsegmente, vor allem in der Mitte der Lichtverteilung (d.h. um den Bereich HV) einen gewünschten Auslauf der Fernlichtverteilung nach obenhin realisieren.The vertically "short" light segments lie at the bottom of the light image, while the "longer" light segments, especially in the middle of the light distribution (i.e. around the HV area), realize a desired upward trend in the high beam distribution.

Bei einer Ausführungsform ist vorgesehen, dass alle Lichtsegmente einer Segment-Lichtverteilung identische Breite, nämlich die Haupt-Segmentbreite, BR, aufweisen.In one embodiment it is provided that all light segments of a segment light distribution have identical width, namely the main segment width, BR.

Bei einer anderen Ausführungsform ist vorgesehen, dass die Lichtsegmente einer Zeile einer Segment-Lichtverteilung unterschiedliche Breite aufweisen, wobei vorzugsweise Lichtsegmente, welche zentral im Bereich der Linie V-V liegen, eine erste Breite, BR aufweisen, und Lichtsegmente, welche in horizontaler Richtung seitlich gesehen liegen, eine zweite Breite BR' aufweisen.In another embodiment it is provided that the light segments of a line of a segment light distribution have different widths, with preferably light segments which lie centrally in the area of the line V-V having a first width, BR, and light segments which lie laterally when viewed in the horizontal direction , have a second width BR'.

Beispielsweise erstreckt sich dieser zentrale Bereich horizontal nach links und rechts von der Linie V-V (die bei 0° horizontal liegt) über einen Bereich von -30° bis +30°, oder über einen Bereich von -20° bis +20°, oder über einen Bereich von -15° bis +15°.For example, this central area extends horizontally to the left and right of the line V-V (which is at 0° horizontal) over a range of -30° to +30°, or over a range of -20° to +20°, or over a range from -15° to +15°.

Insbesondere ist vorgesehen, dass eine Breite eines Lichtsegmentes, welches gemeinsam mit einem oder mehreren Lichtsegmenten einer Segment-Lichtverteilung zentral nebeneinander in etwa im Bereich der Linie V-V liegt, die Haupt-Segmentbreite, BR, definiert.In particular, it is provided that a width of a light segment, which lies centrally next to one another together with one or more light segments of a segment light distribution approximately in the area of the line V-V, defines the main segment width, BR.

Üblicherweise ist der zentrale Bereich der Lichtverteilung um den Punkt HV wichtiger als die Randbereiche, sodass bevorzugt dieser Bereich auch für die Ermittlung der Verschiebung der Segment-Lichtverteilungen herangezogen wird.Usually, the central area of the light distribution around the point HV is more important than the edge areas, so this area is also preferably used to determine the shift in the segment light distributions.

Vorzugsweise ist vorgesehen, dass die zweite Breite für die Randbereiche größer als die erste Breite im zentralen Bereich ist.It is preferably provided that the second width for the edge regions is greater than the first width in the central region.

Insbesondere kann vorgesehen sein, dass die Lichtsegmente einer Segment-Lichtverteilung in Bezug auf die V-V-Achse im Lichtbild symmetrisch liegen. Die Lichtsegmente einer Segment-Lichtverteilung einer Hälfte einer Zeile sind in diesem Fall um die Achse V-V gespiegelt.In particular, it can be provided that the light segments of a segment light distribution are symmetrical with respect to the V-V axis in the light image. In this case, the light segments of a segment light distribution of half of a line are mirrored about the axis V-V.

Bevorzugt ist vorgesehen, dass die Projektionsmodule jeweils eine optische Achse aufweisen, und wobei sich eine Verschiebung einer Segment-Lichtverteilung in Bezug auf die Ausgangs-Segment-Lichtverteilung dadurch ergibt, dass die optische Achse des die verschobene Segment-Lichtverteilung erzeugenden Projektionsmodul sowohl um einen Horizontalwinkel als auch um einen Vertikalwinkel gegen die optische Achse des Ausgangs-Projektionsmoduls geneigt ist.It is preferably provided that the projection modules each have an optical axis, and a shift of a segment light distribution with respect to the output segment light distribution results from the optical axis of the projection module generating the shifted segment light distribution being shifted both by a horizontal angle as well as inclined by a vertical angle against the optical axis of the output projection module.

Jedes der Projektionsmodule, welches eine verschobene Segment-Lichtverteilung erzeugt, ist entsprechend um einen entsprechenden Horizontal- und Vertikalwinkel verdreht.Each of the projection modules, which generates a shifted segment light distribution, is rotated by a corresponding horizontal and vertical angle.

Die erfindungsgemäße Beleuchtungsvorrichtung kann als Kraftfahrzeugscheinwerfer ausgebildet sein, oder eine oder mehrere erfindungsgemäße Beleuchtungsvorrichtungen sind in einem Kraftfahrzeugscheinwerfer angeordnet.The lighting device according to the invention can be designed as a motor vehicle headlight, or one or more lighting devices according to the invention are arranged in a motor vehicle headlight.

Im Folgenden ist die Erfindung an Hand der Zeichnung näher erörtert. In dieser zeigt

  • Fig. 1 eine perspektivische Ansicht einer erfindungsgemäßen Beleuchtungsvorrichtung mit zwei Projektionsmodulen,
  • Fig. 2 die Beleuchtungsvorrichtung aus Figur 1 mit Blick auf das schematisch dargestellte "Innenleben" der Projektionsmodule,
  • Fig. 3 eine Projektionsmodul zur Verwendung in einer Beleuchtungsvorrichtung aus Figur 1 in einer perspektivischen, schematischen Darstellung von Hinten,
  • Fig. 4 das Projektionsmodul aus Figur 3 in einer perspektivischen Ansicht von Vorne,
  • Fig. 5 die konkrete Anordnung von zwei Projektionsmodulen wie in Figur 1 gezeigt in einer perspektivischen Ansicht von schräg Hinten,
  • Fig. 6 schematisch eine mit einem ersten Projektionsmodul aus Figur 1 bzw. Figur 5 erzeugte segmentierte Lichtverteilung ("Segment-Lichtverteilung"),
  • Fig. 7 schematisch eine mit einem zweiten Projektionsmodul aus Figur 1 bzw. Figur 5 erzeugte segmentierte Lichtverteilung ("Segment-Lichtverteilung"),
  • Fig. 8 eine erfindungsgemäße Überlagerung der Lichtverteilungen aus Figur 6 und Figur 7,
  • Fig. 9 eine erfindungsgemäße Überlagerung von Segment-Lichtverteilungen bei Verwendung von drei Projektionsmodulen,
  • Fig. 10 eine Lichtverteilung aus Figur 8 zusammen mit einer Vorfeld-Lichtverteilung, und
  • Fig. 11 mögliche Segment-Lichtverteilungen mit größeren Segmentbreiten im Bereich des Randes.
The invention is discussed in more detail below with reference to the drawing. In this shows
  • Fig. 1 a perspective view of a lighting device according to the invention with two projection modules,
  • Fig. 2 the lighting device Figure 1 with a view to the schematically illustrated "inner workings" of the projection modules,
  • Fig. 3 a projection module for use in a lighting device Figure 1 in a perspective, schematic representation from behind,
  • Fig. 4 the projection module Figure 3 in a perspective view from the front,
  • Fig. 5 the specific arrangement of two projection modules as in Figure 1 shown in a perspective view from diagonally behind,
  • Fig. 6 schematically one with a first projection module Figure 1 or. Figure 5 generated segmented light distribution (“segment light distribution”),
  • Fig. 7 schematically one with a second projection module Figure 1 or. Figure 5 generated segmented light distribution (“segment light distribution”),
  • Fig. 8 an overlay of the light distributions according to the invention Figure 6 and Figure 7 ,
  • Fig. 9 an inventive superimposition of segment light distributions when using three projection modules,
  • Fig. 10 a light distribution Figure 8 together with an apron light distribution, and
  • Fig. 11 possible segment light distributions with larger segment widths in the edge area.

Figur 1 zeigt beispielhaft eine Beleuchtungsvorrichtung 1 mit zwei Projektionsmodulen 10, 20, wobei in dieser Ansicht lediglich die Sekundäroptiken in Form von Projektionslinsen 12, 22 zu erkennen sind. Jedes der Projektionsmodule 10, 20 verfügt über eine optische Achse OA1, OA2, wobei die optische Achse OA1, OA2 jeweils z.B. im Wesentlichen die Hauptlichtaustrittsrichtung charakterisiert. Figure 1 shows an example of a lighting device 1 with two projection modules 10, 20, in which only the secondary optics in the form of projection lenses 12, 22 can be seen in this view. Each of the projection modules 10, 20 has an optical axis OA1, OA2, with the optical axis OA1, OA2 essentially characterizing the main light exit direction, for example.

Figur 2 zeigt noch einmal die Beleuchtungsvorrichtung 1 aus Figur 1 , nunmehr mit - für das Verständnis der Erfindung unerheblichem - abgenommenen Halter für die Projektionslinse 12, 22, sodass der Blick auf die Primäroptik 11, 21 des jeweiligen Projektionsmoduls 10, 20 freigegeben ist. Jede der Primäroptiken 11, 21 weist eine Lichtaustrittsfläche 11a, 21a auf, in welcher ein segmentiertes Zwischenlichtbild gebildet werden kann, welches von der zugeordneten Sekundäroptik, deren Brennebene bzw. Petzval-Fläche im Bereich der Lichtaustrittsfläche 11a, 21a der zugeordneten Primäroptik 11, 21 liegt, als Segment-Lichtverteilung in einem Bereich vor der Beleuchtungsvorrichtung 1, z.B. auf einer Fahrbahn vor einem Kraftfahrzeug oder auf einem Messschirm, etwa in 25 Metern Entfernung, abgebildet werden kann. Figure 2 shows the lighting device 1 again Figure 1 , now with the holder for the projection lens 12, 22 removed - which is irrelevant for understanding the invention, so that the view of the primary optics 11, 21 of the respective projection module 10, 20 is released. Each of the primary optics 11, 21 has a light exit surface 11a, 21a, in which a segmented intermediate light image can be formed, which lies from the associated secondary optics, whose focal plane or Petzval surface is in the area of the light exit surface 11a, 21a of the assigned primary optics 11, 21 , can be imaged as a segment light distribution in an area in front of the lighting device 1, for example on a road in front of a motor vehicle or on a measuring screen, approximately 25 meters away.

Die Figuren 3 und 4 zeigen ein Projektionsmodul 10 aus den Figuren 1 und 2 in einer detaillierteren Ansicht. Die Primäroptik 11 besteht dabei in bekannter Weise aus einem Optikkörper, der mehrere Lichtleiter aufweist, wobei in jeden der Lichtleiter eine eigene Lichtquelle 100 Licht einkoppeln kann. Beispielsweise kann jede Lichtquelle eine LED umfassen oder aus einer LED bestehen. Die Lichtleiter bestehen z.B. aus einem optisch transparenten, Licht leitenden Material, in welchem sich das Licht der Lichtquellen fortpflanzen kann und an den Grenzwänden z.B. totalreflektiert wird. Die Lichtleiter laufen in die gemeinsame Lichtaustrittsfläche 11a zusammen und erzeugen eine Segment-Lichtverteilung, wie diese bereits in der Beschreibungseinleitung erörtert wurde.The Figures 3 and 4 show a projection module 10 from the Figures 1 and 2 in a more detailed view. The primary optics 11 consists in a known manner of an optical body which has several light guides, with a separate light source 100 being able to couple light into each of the light guides. For example, each light source can include an LED or consist of an LED. The light guides consist, for example, of an optically transparent, light-conducting material in which the light from the light sources can propagate and is, for example, totally reflected on the boundary walls. The light guides converge into the common light exit surface 11a and produce a segment light distribution, as already discussed in the introduction to the description.

Das in den Figuren 3 und 4 gezeigte Projektionsmodul 10 ist ein bevorzugt verwendetes Modul, prinzipiell ist jedes Projektionsmodul, das eine Segment-Lichtverteilung wie eingangs beschrieben erzeugen kann, verwendbar.That in the Figures 3 and 4 Projection module 10 shown is a preferably used module; in principle, any projection module that can generate a segment light distribution as described at the beginning can be used.

Figur 5 zeigt zwei baugleiche Projektionsmodule 10, 20, wie an Hand der Figuren 3 und 4 beschrieben. Bei gedachter identischer Anordnung, d.h. identischer Ausrichtung und Positionierung an demselben Ort, würden diese Projektionsmodule 10, 20 identische, deckungsgleiche Segment-Lichtverteilungen erzeugen. Die Lichtquellen des zweiten Projektionsmoduls 20 sind mit "200" bezeichnet. Figure 5 shows two identical projection modules 10, 20, as shown in Figures 3 and 4 described. With an imaginary identical arrangement, ie identical alignment and positioning in the same location, these projection modules 10, 20 would be identical, Generate congruent segment light distributions. The light sources of the second projection module 20 are designated “200”.

Erfindungsgemäß ist die optische Achse OA2 des zweiten Projektionsmoduls 20 sowohl um einen Horizontalwinkel ϕ als auch um einen Vertikalwinkel γ gegen die optische Achse OA1 des ersten, sogenannten Ausgangs-Projektionsmoduls 10 geneigt, wodurch die Segment-Lichtverteilung des zweiten Projektionsmoduls 20 gegenüber jener des ersten Projektionsmoduls 10 wie im Folgenden noch näher beschrieben verschoben ist. Die Anordnung der Projektionsmodule 10, 20 nebeneinander ist rein beispielhaft. In einer Entfernung von z.B. 25 Metern auf einem Messschirm, d.h. im Fernfeld, ist die konkrete Position der einzelnen Projektionsmodule, also ein örtlicher Versatz der Module zueinander vernachlässigbar, entscheidend ist die Ausrichtung der optischen Achse OA1, OA2.According to the invention, the optical axis OA2 of the second projection module 20 is inclined both by a horizontal angle ϕ and by a vertical angle γ relative to the optical axis OA1 of the first, so-called output projection module 10, whereby the segment light distribution of the second projection module 20 compared to that of the first projection module 10 is shifted as described in more detail below. The arrangement of the projection modules 10, 20 next to each other is purely an example. At a distance of, for example, 25 meters on a measuring screen, i.e. in the far field, the specific position of the individual projection modules, i.e. a local offset of the modules from one another, is negligible; the orientation of the optical axis OA1, OA2 is crucial.

Figur 6 zeigt eine Segment-Lichtverteilung LV10 ("Ausgangs-Segment-Lichtverteilung"), erzeugt mit dem ersten bzw. Ausgangs-Projektionsmodul 10. Die Linien H-H (bzw. Achse H) und V-V (bzw. Achse V) kennzeichnen in bekannter Weise die horizontale 0°-0° und die vertikale 0°-0° Linie zur Darstellung von Lichtverteilungen. Figure 6 shows a segment light distribution LV10 ("output segment light distribution"), generated with the first or output projection module 10. The lines HH (or axis H) and VV (or axis V) identify the horizontal in a known manner 0°-0° and the vertical 0°-0° line to represent light distributions.

Die Segment-Lichtverteilung LV10 besteht aus mehreren rechteckförmigen Lichtsegmenten SEG10, die in diesem Beispiel in zwei Zeilen Z101, Z102 sowie dreizehn Spalten S1001 ... S1013 angeordnet sind. Diese Zahlen sind rein beispielhaft zur Erläuterung der Erfindung gewählt, es können auch mehr oder weniger Spalten und Zeilen zum Einsatz kommen, wobei allerdings vorzugsweise zumindest 2 Zeilen und mindestens 2 Spalten vorgesehen sind.The segment light distribution LV10 consists of several rectangular light segments SEG10, which in this example are arranged in two rows Z101, Z102 and thirteen columns S1001 ... S1013. These numbers are chosen purely as an example to explain the invention; more or fewer columns and rows can also be used, although preferably at least 2 rows and at least 2 columns are provided.

Alle Lichtsegmente haben dieselbe Breite (Ausdehnung in horizontaler Richtung) BR, die sogenannte Haupt-Segmentbreite BR, beispielsweise kann die Breite 2,4°, vorzugsweise auch 1,2° betragen.All light segments have the same width (extent in the horizontal direction) BR, the so-called main segment width BR, for example the width can be 2.4°, preferably also 1.2°.

Weiters ist eine Gerade G1 zu erkennen, welche die beiden Zeilen Z101, Z102 voneinander trennt. Die Gerade G1 liegt vorzugsweise 0,57° unterhalb der Linie H-H.Furthermore, a straight line G1 can be seen, which separates the two lines Z101, Z102 from each other. The straight line G1 is preferably 0.57° below the line H-H.

Figur 7 zeigt eine Segment-Lichtverteilung LV20, erzeugt mit dem zweiten Projektionsmodul 20. Die Segment-Lichtverteilung LV20 ist wäre optisch identisch zu der Segment-Lichtverteilung LV10, ist allerdings im Lichtbild bereits erfindungsgemäß, sowohl in horizontaler als auch vertikaler Richtung, verschoben, und besteht aus mehreren rechteckförmigen Lichtsegmenten SEG20, die zwei Zeilen Z201, Z202 sowie dreizehn Spalten S2001 ... S2013 angeordnet sind. Alle Lichtsegmente SEG20 haben dieselbe Breite (Ausdehnung in horizontaler Richtung) BR, die sogenannte Haupt-Segmentbreite BR. Figure 7 shows a segment light distribution LV20, generated with the second projection module 20. The segment light distribution LV20 would be optically identical to the segment light distribution LV10, but is already in the light image according to the invention, both in horizontally and vertically, and consists of several rectangular light segments SEG20, which are arranged in two rows Z201, Z202 and thirteen columns S2001 ... S2013. All light segments SEG20 have the same width (extent in the horizontal direction) BR, the so-called main segment width BR.

Figur 8 zeigt eine Lichtverteilung LV als erfindungsgemäße Überlagerung der Segment-Lichtverteilungen LV10, LV20, vorzugsweise durch eine Verdrehung der Projektionsmodule 10, 20 wie in Figur 5 gezeigt. Figure 8 shows a light distribution LV as an inventive superposition of the segment light distributions LV10, LV20, preferably by rotating the projection modules 10, 20 as in Figure 5 shown.

Der allgemeine Zusammenhang für den Wert der Verschiebung der n-ten Segment-Lichtverteilung ergibt sich zu VSh(n) = m x BR + (n - 1)/N x BR, n = 2, ..., N, m = 0, 1, oder 2, oder 3, oder größer 3, in horizontaler Richtung verschoben ist. Die zweite Segment-Lichtverteilung (welche die erste verschobene Segment-Lichtverteilung darstellt, trägt die Nummer n = 2, die Ausgangs-Segment-Lichtverteilung ist die erste Lichtverteilung.The general relationship for the value of the shift of the nth segment light distribution is VSh(n) = m x BR + (n - 1)/N x BR, n = 2, ..., N, m = 0, 1, or 2, or 3, or greater than 3, is shifted in the horizontal direction. The second segment light distribution (which represents the first shifted segment light distribution has the number n = 2, the output segment light distribution is the first light distribution.

Bei dem Beispiel gemäß Figur 8 gilt:

  • N = 2, (somit gilt n = 2)
  • m = 0
According to the example Figure 8 applies:
  • N = 2, (thus n = 2)
  • m = 0

In horizontaler Richtung ist erfindungsgemäß die zweite Segment-Lichtverteilung LV20 um einen Wert VSh, welcher der halben Haupt-Segmentbreite BR entspricht, gegenüber der Ausgangs-Segment-Lichtverteilung LV10 nach rechts verschoben: VSh(n = 2) = BR/2. In vertikaler Richtung ist die zweite Segment-Lichtverteilung LV20 ebenfalls verschoben, und zwar um einen Wert VSv nach oben. Die vertikale Verschiebung VSv ist dabei vorzugsweise derart gewählt, dass eine zweite Gerade G2, welche die beiden Zeilen Z201, Z202 voneinander trennt, 0,23° unterhalb der Linie H-H.In the horizontal direction, according to the invention, the second segment light distribution LV20 is shifted to the right by a value VSh, which corresponds to half the main segment width BR, compared to the output segment light distribution LV10: VSh(n = 2) = BR/2. In the vertical direction, the second segment light distribution LV20 is also shifted upwards by a value VSv. The vertical displacement VSv is preferably selected such that a second straight line G2, which separates the two lines Z201, Z202 from each other, is 0.23° below the line H-H.

An dieser Stelle sei angemerkt, dass sich die Geraden G1 und G2 lediglich bei zueinander verschobenen Segment-Lichtverteilungen voneinander unterscheiden. Bei identischer Ausrichtung der Projektionsmodule 10, 20 würden die Geraden G1, G2 zusammenfallen.It should be noted at this point that the straight lines G1 and G2 only differ from one another when the segment light distributions are shifted relative to one another. If the projection modules 10, 20 were aligned identically, the straight lines G1, G2 would coincide.

Figur 9 zeigt ein weiteres Beispiel einer Lichtverteilung LV, nunmehr als Überlagerung der Segment-Lichtverteilungen von 3 Projektionsmodulen (N = 3), welche drei (an sich identische) Segment-Lichtverteilungen LV10, LV20, LV30 bilden. Diese Segment-Lichtverteilungen LV10, LV20, LV30 entsprechen jener aus Figur 6 bzw. 7. Figure 9 shows another example of a light distribution LV, now as a superposition of the segment light distributions of 3 projection modules (N = 3), which have three (per se identical) segment light distributions LV10, LV20, LV30. These segment light distributions LV10, LV20, LV30 correspond to that from Figure 6 or 7.

In dem Beispiel nach Figur 9 gilt:

  • N = 3, (somit n = 2, 3)
  • m=1
In the example below Figure 9 applies:
  • N = 3, (thus n = 2, 3)
  • m=1

Ausgehend von der Ausgangs-Segment-Lichtverteilung LV10 ist entsprechend die zweite (n = 2) Segment-Lichtverteilung LV20 (= die erste verschobene Segment-Lichtverteilung) um 1*BR/3 horizontal nach rechts verschoben, die dritte (n = 3) Segment-Lichtverteilung LV30 (= die zweite verschobene Segment-Lichtverteilung) ist um 2*BR/3 horizontal nach rechts verschoben.Starting from the output segment light distribution LV10, the second (n = 2) segment light distribution LV20 (= the first shifted segment light distribution) is shifted horizontally to the right by 1*BR/3, the third (n = 3) segment -Light distribution LV30 (= the second shifted segment light distribution) is shifted horizontally to the right by 2*BR/3.

Optional kann noch wie gezeigt vorgesehen sein, dass zusätzlich jede der beiden verschobenen Segment-Lichtverteilungen LV20, LV30 um einen festen Betrag von z.B. einer Haupt-Segmentbreite BR verschoben ist, entsprechend dem Wert m = 1, sodass die Segment-Lichtverteilungen LV20, LV30 in diesem Beispiel insgesamt um VSh (n=2) = BR + BR/3 und VSh (n=3) = BR + 2*BR/3 horizontal nach rechts verschoben sind.Optionally, as shown, it can also be provided that each of the two shifted segment light distributions LV20, LV30 is additionally shifted by a fixed amount of, for example, a main segment width BR, corresponding to the value m = 1, so that the segment light distributions LV20, LV30 in In this example, a total of VSh (n=2) = BR + BR/3 and VSh (n=3) = BR + 2*BR/3 are shifted horizontally to the right.

Bezüglich der Verschiebung VSv in vertikaler Richtung wird auf die Ausführungen zu Figur 8 verwiesen. Die beiden verschobenen Segment-Lichtverteilungen LV20, LV30 sind in vertikaler Richtung im denselben Wert VSv verschoben, dieser entspricht dem Wert wie in Figur 8 beschrieben.Regarding the displacement VSv in the vertical direction, see the explanations Figure 8 referred. The two shifted segment light distributions LV20, LV30 are shifted in the vertical direction by the same value VSv, which corresponds to the value as in Figure 8 described.

Wie in den Überlagerungen aus Figur 8 und Figur 9 gut zu erkennen ist, kann in Abhängigkeit von der Anzahl der verwendeten Projektionsmodule (und der Art der verwendeten Projektionsmodule) die Beleuchtungsstärke gezielt gesteuert werden uns es ergibt sich eine, insbesondere in horizontaler Richtung hohe Auflösung, die mit der Anzahl der verwendeten Projektionsmodule steigt, sodass durch gezieltes Aktivieren und Deaktivieren bestimmter Lichtsegmente der einzelnen Segment-Lichtverteilungen gewünschte Lichtverteilungen, wie Abblendlicht, Autobahnlicht und Fernlicht sowie diverse Ausblendszenarien realisiert werden können.As in the overlays Figure 8 and Figure 9 can be clearly seen, depending on the number of projection modules used (and the type of projection modules used), the illuminance can be specifically controlled and this results in a high resolution, particularly in the horizontal direction, which increases with the number of projection modules used, so that By specifically activating and deactivating certain light segments of the individual segment light distributions, desired light distributions, such as low beam, highway light and high beam as well as various blanking scenarios, can be achieved.

Figur 10 zeigt noch einmal die Lichtverteilung LV aus Figur 8, zusammen mit einer Vorfeld-Lichtverteilung VFL, welche von einer weiteren, nicht gezeigten Beleuchtungsvorrichtung erzeugt wird; diese Vorfeld-Lichtverteilung VFL ist vorzugsweise immer aktiviert, insbesondere nicht segmentiert und bildet vorzugsweise eine homogene Ausleuchtung im "Nahbereich" (beispielsweise bis 45m) vor dem Kraftfahrzeug. Figure 10 shows the light distribution LV again Figure 8 , together with an apron light distribution VFL, which is generated by a further lighting device, not shown; This apron light distribution VFL is preferably always activated, in particular not segmented, and preferably forms homogeneous illumination in the "close range" (for example up to 45m) in front of the motor vehicle.

Die Vorfeld-Lichtverteilung VFL schließt vorzugsweise in etwa unterhalb der Geraden G1 an die (adaptive) Lichtverteilung LV an.The apron light distribution VFL preferably connects to the (adaptive) light distribution LV approximately below the straight line G1.

Figur 11 zeigt schließlich noch zwei Sonderfälle der vorliegenden Erfindung. Figure 11 finally shows two special cases of the present invention.

In den vorstehenden Figuren weisen alle Lichtsegmente identische Breite BR auf. Es kann aber auch vorgesehen sein, dass anschließend an einen zentralen Bereich um die Linie V-V, in welchem die Lichtsegmente SEG alle eine erste, identische Breite BR aufweisen, links und rechts anschließend weitere Lichtsegmente SEG', SEG" vorgesehen sind, die eine zweite Breite BR' aufweisen. Typischerweise ist die zweite Breite BR' größer als die erste Breite.In the above figures, all light segments have identical width BR. However, it can also be provided that, following a central area around the line V-V, in which the light segments SEG all have a first, identical width BR, further light segments SEG', SEG" are provided on the left and right, which have a second width BR'. Typically, the second width BR' is larger than the first width.

Die erste Breite BR definiert die Haupt-Segmentbreite, und zwei oder mehr identischer solcher Segment-Lichtverteilungen SLV wie in Figur 11 gezeigt können dann analog wie vorstehend an Hand der Figuren 6 bis 9 zu einer, insbesondere adaptiven, Lichtverteilung überlagert werden.The first width BR defines the main segment width, and two or more identical such segment light distributions SLV as in Figure 11 can then be shown analogously to the above using the Figures 6 to 9 be superimposed to form a, in particular adaptive, light distribution.

Der linke Bereich mit den Lichtsegmenten SEG' ist punktiert dargestellt, der rechte Bereich mit den Lichtsegmenten SEG" ist strichliert dargestellt. Damit soll angedeutet werden, dass abweichend von den vorstehenden Absätzen eine erste Segment-Lichtverteilung SLV z.B. nur auf der linken Seite, neben dem zentralen Bereich der Lichtsegmente SEG, breitere Lichtsegmente SEG' aufweist. Eine weitere, erfindungsgemäß zu verschiebende Segment-Lichtverteilung SLV weist neben dem zentralen Bereich nur auf der rechten Seite breitere Lichtsegmente SEG" auf, usw.The left area with the light segments SEG' is shown in dotted lines, the right area with the light segments SEG" is shown in dashed lines. This is intended to indicate that, contrary to the paragraphs above, a first segment light distribution SLV, for example, only on the left side, next to the central area of the light segments SEG, wider light segments SEG '. A further segment light distribution SLV, which can be moved according to the invention, has, in addition to the central area, wider light segments SEG "only on the right side, etc.

In diesem Fall ist der Begriff "optisch identisch" dahingehend zu verstehen, dass zwei Module, insbesondere Projektionsmodule, die "optisch identisch" sind, bei Anordnung an identer Position und bei identer Ausrichtung identische Lichtverteilungen lediglich im zentralen Bereich (wie er beispielhaft in der Beschreibungseinleitung erörtert ist) bilden, wobei insbesondere auch die einzelnen Lichtsegmente im zentralen Bereich der Projektionsmodule identisch ausgestaltet sind, an identer Stelle im Lichtbild liegen und dieselben Lichtwerte (Lichtverteilung, Helligkeit, etc.) aufweisen. Links und rechts des zentralen Bereiches können "optisch identische" Module hingegen unterschiedliche Lichtsegment-Verteilungen erzeugen, z.B. wie vorstehend beschrieben, ein erstes, und gegebenenfalls, drittes, fünftes, etc. Modul lediglich links des zentralen Bereiches breitere Lichtsegmente aufweisen, und das zweite, und gegebenenfalls vierte, sechste usw. Modul lediglich auf der rechten Seite breitere Lichtsegmente aufweisen. Vorzugsweise ist dabei eine Lichtverteilung links des zentralen Bereiches (z.B. der ersten Segment-Lichtverteilung) um die V-V-Achse gespiegelt, um die Lichtverteilung rechts des zentralen Bereiches (z.B. der zweiten Segment-Lichtverteilung) zu bilden.In this case, the term "optically identical" is to be understood to mean that two modules, in particular projection modules, which are "optically identical", when arranged in an identical position and with an identical orientation, have identical light distributions only in the central area (as exemplified in the introduction to the description is discussed), in particular the individual light segments in the central area of the Projection modules are designed identically, are located in the same place in the photograph and have the same light values (light distribution, brightness, etc.). To the left and right of the central area, however, "optically identical" modules can generate different light segment distributions, for example, as described above, a first, and possibly third, fifth, etc. module only has wider light segments to the left of the central area, and the second, and if necessary fourth, sixth etc. module only have wider light segments on the right side. Preferably, a light distribution to the left of the central area (eg the first segment light distribution) is mirrored around the VV axis in order to form the light distribution to the right of the central area (eg the second segment light distribution).

Solche "optisch identischen" Lichtverteilungen können entweder mit identischen, insbesondere baugleichen Projektionsmodulen erzeugt werden, wobei jedes Lichtmodul gewisse Lichtquellen, die nicht verwendete Lichtsegmente erzeugen würden, nicht betrieben werden, oder die Projektionsmodule sind jeweils entsprechend angepasst, sodass für die ungeradzahligen Segment-Lichtverteilungen eine erste Art baugleicher Projektionsmodule und für die geradzahligen Segment-Lichtverteilungen eine zweite Art baugleicher Projektionsmodule verwendet wird.Such "optically identical" light distributions can either be generated with identical, in particular identical, projection modules, with each light module not operating certain light sources that would produce unused light segments, or the projection modules are each adapted accordingly, so that one for the odd-numbered segment light distributions first type of identical projection modules and for the even-numbered segment light distributions a second type of identical projection modules is used.

Claims (14)

  1. Lighting device (1) for a motor vehicle headlamp for generating a light distribution (LV), in particular an adaptive light distribution, e.g. an adaptive low beam and high beam distribution, or a part of such a light distribution, wherein the lighting device comprises
    a number N of projection modules (10, 20), with N = 2, 3, 4 or greater than 4, each of the projection modules (10, 20) being arranged to generate a segment light distribution (LV10, LV20), wherein
    a segment light distribution (LV10, LV20) is formed from a plurality of light segments (SEG10, SEG20), and wherein the light segments (SEG10, SEG20) of the segment light distribution (LV10, LV20) lie in two or more substantially horizontal rows (Z101, Z102, Z201, Z202) and in two or more columns (S1001, ..., S1005, ... S1013, S2001, ..., S2005, ... S2013),
    wherein the light segments (SEG10, SEG20) are located such that when all light segments (SEG10, SEG20) of the segment light distribution (LV10, LV20) are activated, substantially no dark or light bands are formed between the rows and the columns,
    and wherein each light segment (SEG10, SEG20) of the segment light distribution (LV10, LV20; LV10, LV20, LV30) can be activated or deactivated independently of the other segments of the segment light distribution (LV10, LV20; LV10, LV20, LV30),
    and wherein in each row (Z101, Z102, Z201, Z202) several segments (SEG10, SEG20), called main segments, have identical main segment width, BR,
    and wherein all projection modules (10, 20) are formed identically from an optical point of view,
    characterized in that
    the projection modules (10, 20) are identical, the projection modules (10, 20) being arranged relative to one another in such a way that, starting from a first projection module (10), the so-called initial projection module (10), which generates a so-called initial segment light distribution (LV10), the segment light distributions (LV20; LV20, LV30) of the further projection modules (20) are laterally shifted in a common horizontal direction, the extent of the shift, VSh, of the n-th segment light distribution (LV20; LV20, LV30) of the n-th projection module (20) in this horizontal direction being equal to a value VSh(n) = m x BR + (n - 1)/N x BR, n = 2, ... N, m = 0, 1, or 2, or 3, or greater than 3,
    and wherein at least one of the nth segment light distributions (LV20; LV10, LV20, LV30), n = 2, ..., N, is shifted upwards or downwards in the vertical direction with respect to the output segment light distribution (LV10),
    wherein each of the projection modules (10, 20) producing a shifted segment light distribution is correspondingly rotated by a respective horizontal and vertical angle.
  2. Lighting device according to claim 1, characterized in that the nth segment light distribution (LV20; LV20, LV30) is shifted in the horizontal direction by a value VSh(n) = (n - 1)/N x BR, n = 2, ..., N.
  3. Lighting device according to one of claims 1 to 2, characterized in that all of the nth segment light distributions (LV20; LV20, LV30), n = 3, ..., N, are shifted in the vertical direction with respect to the output segment light distribution (LV10) by the same amount and in the same direction, preferably vertically upwards.
  4. Lighting device according to any one of claims 1 to 3, characterized in that in the vertical direction at least one of the segment light distributions (LV10) is arranged such, that light segments (SEG10) of at least one line (Z102) extend downwards starting at a straight line (G1) lying below the H-H line in the light image and the light segments (SEG10) of at least one line (Z101) of the light segments extend upwards from the straight line (G1), the straight line (G1) preferably lying 0.57° below the H-H line.
  5. Lighting device according to claim 4, characterized in that the other segment light distributions (LV20; LV20, LV30) are shifted in vertical direction (V) in such a way that a dividing line (G2) between two lines (Z201, Z202) of light segments (SEG20) of the other light distributions lies above the straight line (G), preferably the dividing line (G2) lying below the H-H line, preferably 0.23° below the H-H line.
  6. Lighting device according to one of the claims 1 to 5, characterised in that light segments (SEG10, SEG20) of a segment light distribution (LV10, LV20) which lie completely below the H-H line, in particular below one of the straight lines (G1, G2), have a smaller height, i.e. a smaller extension in the vertical direction (V), than light segments (SEG10, SEG20) lying above them.
  7. Lighting device according to one of claims 1 to 6, characterised in that all light segments (SEG10, SEG20) of a segment light distribution have identical width, namely the main segment width, BR.
  8. Lighting device according to one of claims 1 to 6, characterised in that the light segments of a line of a segment light distribution have different widths, preferably light segments which lie centrally in the region of the line V-V having a first main segment width, BR, and light segments which lie laterally viewed in the horizontal direction having a second main segment width BR'.
  9. Lighting device according to claim 8, characterized in that a width (BR) of a light segment which lies together with one or more light segments of a segment light distribution centrally next to each other approximately in the area of the line V-V defines the main segment width, BR.
  10. Lighting device according to claim 8 or 9, characterized in that the second width (BR') is greater than the first width (BR).
  11. Lighting device according to any one of claims 6 to 10, characterised in that the light segments of a segment light distribution lie symmetrically with respect to the V-V axis in the light image.
  12. Lighting device according to any one of claims 1 to 11, characterised in that the projection modules (10, 20) each have an optical axis (OA1, OA2), and wherein a displacement of a segment light distribution (LV20) with respect to the initial segment light distribution (LV10) results thereby, that the optical axis (OA2) of the projection module (20) generating the shifted segment light distribution (LV20) is inclined against the optical axis (OA1) of the output projection module (10) by both a horizontal angle (ϕ) and a vertical angle (γ).
  13. Lighting device according to one of claims 1 to 12, characterised in that the lighting device is designed as a motor vehicle headlamp.
  14. Motor vehicle headlamp comprising at least one illumination device according to any one of claims 1 to 13.
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JP2022513301A (en) 2022-02-07
WO2020127083A1 (en) 2020-06-25
JP7106009B2 (en) 2022-07-25
EP3671012A1 (en) 2020-06-24
US20220057065A1 (en) 2022-02-24
CN113167447A (en) 2021-07-23
KR102540599B1 (en) 2023-06-08
EP3899354A1 (en) 2021-10-27
US11530793B2 (en) 2022-12-20
CN113167447B (en) 2024-04-02

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