EP3494343B1 - Vehicle headlamp - Google Patents
Vehicle headlamp Download PDFInfo
- Publication number
- EP3494343B1 EP3494343B1 EP17739847.6A EP17739847A EP3494343B1 EP 3494343 B1 EP3494343 B1 EP 3494343B1 EP 17739847 A EP17739847 A EP 17739847A EP 3494343 B1 EP3494343 B1 EP 3494343B1
- Authority
- EP
- European Patent Office
- Prior art keywords
- light
- optical
- motor vehicle
- lighting device
- vehicle lighting
- 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.)
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- 230000003287 optical effect Effects 0.000 claims description 59
- 238000012634 optical imaging Methods 0.000 claims description 18
- 238000011144 upstream manufacturing Methods 0.000 description 4
- 238000010276 construction Methods 0.000 description 2
- 230000004907 flux Effects 0.000 description 2
- 239000000853 adhesive Substances 0.000 description 1
- 230000001070 adhesive effect Effects 0.000 description 1
- 238000011109 contamination Methods 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 230000002349 favourable effect Effects 0.000 description 1
- 238000005286 illumination Methods 0.000 description 1
- 238000003384 imaging method Methods 0.000 description 1
- 239000012535 impurity Substances 0.000 description 1
- 238000009434 installation Methods 0.000 description 1
- 239000000463 material Substances 0.000 description 1
- 239000011159 matrix material Substances 0.000 description 1
- 238000005259 measurement Methods 0.000 description 1
- 229920001296 polysiloxane Polymers 0.000 description 1
- 230000001902 propagating effect Effects 0.000 description 1
- 238000000926 separation method Methods 0.000 description 1
Images
Classifications
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F21—LIGHTING
- F21S—NON-PORTABLE LIGHTING DEVICES; SYSTEMS THEREOF; VEHICLE LIGHTING DEVICES SPECIALLY ADAPTED FOR VEHICLE EXTERIORS
- F21S41/00—Illuminating devices specially adapted for vehicle exteriors, e.g. headlamps
- F21S41/40—Illuminating devices specially adapted for vehicle exteriors, e.g. headlamps characterised by screens, non-reflecting members, light-shielding members or fixed shades
- F21S41/43—Illuminating devices specially adapted for vehicle exteriors, e.g. headlamps characterised by screens, non-reflecting members, light-shielding members or fixed shades characterised by the shape thereof
-
- 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
-
- 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
- F21S41/24—Light guides
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F21—LIGHTING
- F21V—FUNCTIONAL FEATURES OR DETAILS OF LIGHTING DEVICES OR SYSTEMS THEREOF; STRUCTURAL COMBINATIONS OF LIGHTING DEVICES WITH OTHER ARTICLES, NOT OTHERWISE PROVIDED FOR
- F21V5/00—Refractors for light sources
- F21V5/04—Refractors for light sources of lens shape
- F21V5/048—Refractors for light sources of lens shape the lens being a simple lens adapted to cooperate with a point-like source for emitting mainly in one direction and having an axis coincident with the main light transmission direction, e.g. convergent or divergent lenses, plano-concave or plano-convex 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
-
- 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
- F21S41/26—Elongated lenses
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F21—LIGHTING
- F21V—FUNCTIONAL FEATURES OR DETAILS OF LIGHTING DEVICES OR SYSTEMS THEREOF; STRUCTURAL COMBINATIONS OF LIGHTING DEVICES WITH OTHER ARTICLES, NOT OTHERWISE PROVIDED FOR
- F21V2200/00—Use of light guides, e.g. fibre optic devices, in lighting devices or systems
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F21—LIGHTING
- F21W—INDEXING SCHEME ASSOCIATED WITH SUBCLASSES F21K, F21L, F21S and F21V, RELATING TO USES OR APPLICATIONS OF LIGHTING DEVICES OR SYSTEMS
- F21W2102/00—Exterior vehicle lighting devices for illuminating purposes
- F21W2102/10—Arrangement or contour of the emitted light
- F21W2102/17—Arrangement or contour of the emitted light for regions other than high beam or low beam
- F21W2102/18—Arrangement or contour of the emitted light for regions other than high beam or low beam for overhead signs
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F21—LIGHTING
- F21Y—INDEXING SCHEME ASSOCIATED WITH SUBCLASSES F21K, F21L, F21S and F21V, RELATING TO THE FORM OR THE KIND OF THE LIGHT SOURCES OR OF THE COLOUR OF THE LIGHT EMITTED
- F21Y2115/00—Light-generating elements of semiconductor light sources
- F21Y2115/10—Light-emitting diodes [LED]
Definitions
- the invention relates to a motor vehicle lighting device which comprises at least one light source which emits light in the switched-on state, an optical device assigned to the at least one light source, into which light from the at least one light source is radiated, and an optical imaging system which is assigned to the optical device and which comprises the optical device images emerging light in front of the motor vehicle lighting device in the form of two light distributions, namely in the form of a main light distribution and a signlight partial light distribution.
- the motor vehicle lighting device When the motor vehicle lighting device is installed in a motor vehicle and put into operation, the motor vehicle lighting device generates these light distributions at a distance in front of the motor vehicle.
- the invention also relates to a motor vehicle with at least one such motor vehicle lighting device.
- signlight partial light distribution is understood to mean a partial light distribution which serves to illuminate fastened traffic signs mounted high above a roadway.
- the signlight partial light distribution is sometimes also called overhead sign partial light distribution.
- a Signlight partial light distribution according to the ECE regulations can correspond to a partial light distribution which, depending on the type of light sources used and the control of the motor vehicle lighting device, in an upper half of Zone A (according to ECE R98) and / or Zone III (according to ECE R112) and / or in zone III (according to ECE R123).
- the AT 514 784 A1 and AT 514 785 A1 describe an optical structure for a lighting device for a motor vehicle headlight, which can be applied, for example, to a lens surface for generating a signlight.
- a disadvantage of this solution is that the optical structure strongly influences the properties of the lens and is also not preferred in terms of design.
- the registration EP 2 799 761 A2 discloses a light module for a motor vehicle headlight, which has primary optics, which emits light from a light source into a Converts intermediate light distribution, wherein a horizontally arranged diaphragm is set up so that the light of the intermediate light distribution, which passes the diaphragm on a first side of the diaphragm, in a first beam path into one on a first side of the light-dark boundary in the second light distribution lying area.
- the light module is characterized in that the primary optics are set up to deflect part of the light emanating from the light source in such a way that it passes the aperture on a second side of the diaphragm and from the secondary optics in a second beam path into one on one second side of the cut-off line is distributed in the area lying in the second light distribution.
- the aperture is aligned horizontally. Therefore, the light module is, for example, unfavorable in terms of installation space.
- DE 10316069 A1 a motor vehicle headlamp of the projection type, in which a diaphragm with an opening is provided.
- the opening is designed and arranged such that light passing through the opening generates the Signlight.
- the object of the present invention is to eliminate the above-mentioned disadvantages of the prior art and to provide a motor vehicle lighting device which takes modern design requirements into account, dispenses with costly and time-consuming optical structures and is space-saving.
- the object is achieved according to the invention with a motor vehicle lighting device mentioned at the outset in that the optical device is set up to bundle the light from the at least one light source and to direct it to the optical imaging system in the form of at least two spatially separated light bundles - a first light bundle and a second light bundle , and the optical imaging system is configured to project each light beam in the form of a light distribution in front of the motor vehicle lighting device (the first light beam in the form of a main light distribution and the second light beam in the form of a signlight partial light distribution), the optical device at least one perpendicular to an optical one Is arranged downstream of the axis of the optical imaging system arranged aperture, wherein the aperture has at least a first opening and at least a second opening, wherein the at least one first opening
- the lighting device comprises a plurality of light sources, preferably a plurality of LEDs
- the optical device has a plurality of light-guiding optic bodies, with exactly one LED being assigned to each light-guiding optic body, each light-guiding optic body with respect to the associated LED in this way is arranged and / or designed such that only the light of the associated LED couples into the optic body.
- One advantage is, for example, that the LEDs and the light-guiding optic body can achieve a collimated homogeneous light or a homogeneous light distribution with the desired outlet.
- light-guiding optic body is understood to mean an optic body in which light rays coupled into the optic body propagate due to the total reflection and only leave it when they are on an impurity, such as a deflecting prism or contamination of the material, or strike an end of the optic body that includes an exit surface.
- the term “light bundle” is to be understood as a spatially limited area in which light propagates. A light beam is limited by marginal rays. Therefore, in connection with the present invention, the term “two spatially separated light bundles” is understood to mean two non-overlapping, spaced light bundles, the edge rays of which do not overlap.
- the first opening of the diaphragm has a lower edge, the lower edge forms a light-dark boundary in the light image, and the second opening is arranged below a central region of the first opening.
- the term "vertical" refers to an axis of a coordinate system connected to the motor vehicle lighting device, which is oriented vertically when the motor vehicle lighting device is in a position corresponding to the installed state in a motor vehicle.
- the coordinate system is selected such that it corresponds to a coordinate system in the image space that is used for measurements on the emitted light distributions.
- the vertical in the coordinate system connected to the motor vehicle lighting device corresponds to the vertical on a measuring screen, which is set up in a lighting technology laboratory for measuring light distributions generated by the motor vehicle lighting device.
- the optical imaging system can, for example, have a projection surface / projection plane, wherein all objects located in the projection surface are sharply imaged in an image space assigned to the optical imaging system.
- the optical device has a continuous, preferably flat, light exit surface, on which light exit surface the diaphragm is arranged, preferably without a gap.
- the advantage of this constellation is that a luminous image designed simultaneously through the light exit surface and the diaphragm or a luminous surface simultaneously designed through the light exit surface and the diaphragm can be arranged in the projection surface of the optical imaging system.
- all light sources preferably all LEDs
- all optical bodies starting from the Taper the light exit surface of the optical device
- at least some of the light-guiding optic bodies, preferably all the light-guiding optic bodies have a common light exit plate.
- the light exit plate is formed in one piece with the light-conducting optical bodies associated with the part, preferably with all light-conducting optical bodies.
- the light sources are arranged in a horizontal row perpendicular to the optical axis of the motor vehicle lighting device and at least one optic body lying in the middle of the row has a preferably convex design projecting downward (with respect to the remaining optic bodies) , Has lower area, which extends from a light entry surface of the center in the row of optics body optic body to the light exit surface. It is advantageous here that a branching of the light from a single LED can be sufficient to generate the Signlight partial light distribution.
- the lower region has a lower, preferably parabolic, boundary side.
- the optical body lying in the center of the row is set up to form the second light beam.
- the other light sources preferably LEDs, which are not used for the Signlight partial light distribution, can be dimmed as desired.
- the main light distribution is designed as an apron light distribution with a straight horizontal cut-off line or as a low-beam light distribution with a cut-off line with an increase.
- the optical imaging system is designed as a lens, the lens collimating the light beams in the vertical direction and expanding in the horizontal direction.
- a light module 1 of a motor vehicle headlight is shown schematically, which can correspond to a motor vehicle lighting device according to the invention.
- Figure 1 shows the light module 1 in a perspective view.
- the light module comprises a light source 2, which is formed from a plurality of LEDs, for example arranged in a row, an optical attachment 3 located upstream of the light source, into which the light from the light source is coupled on the one hand and coupled out on the other hand, one perpendicular to an optical axis 4 of the light module 1 arranged aperture 5 and a lens 6, which can correspond to an optical imaging system according to the invention.
- the front lens 3 can correspond to the optical device according to the invention and can be made of silicone, for example.
- the front lens 3 has light-guiding properties, that is to say that the light coupled in from the LEDs on the one hand can propagate in this front lens 3 without significant losses until it emerges, ie on a light exit side 7 of the front lens 3.
- a diaphragm 5 is provided which, depending on its shape and mode of operation, either at least partially blocks or transmits the light emerging from the light exit surface 7. It can be advantageous if the above-mentioned diaphragm 5 is arranged tightly / without spacing on the light exit surface 7 of the front lens 3.
- the diaphragm 5 can, for example, be formed in one piece with the attachment optics 3 or on the latter using fastening means, for example screws, nails or adhesives be attached.
- fastening means for example screws, nails or adhesives be attached.
- An advantage here is that if the light module 1 is a low-beam light module, the diaphragm can form a light-dark boundary, among other things. It is also conceivable for the diaphragm to be formed separately from the light exit surface and to be spaced apart from it. In addition, it is conceivable that the diaphragm 5 can be displaceable using adjusting means (not shown).
- the actuating means can be designed, for example, as an actuator which removes the diaphragm 5 from the beam path, as a result of which all the light emerging from the light exit surface 7 of the front lens 3 hits the lens 6. In this way it is possible, for example, to switch between a high beam and the low beam.
- the light exit surface 7 of the front optical system 3 and / or the diaphragm 5 are / are preferably arranged in or spaced from a focal surface 8 of the lens 6 (for example a free-form lens), so that this lens 6 produces the light exit surface 7 generated by the diaphragm 5 in maps a given shape to the illuminated area in front of the light module 1.
- a focal surface 8 of the lens 6 for example a free-form lens
- the focal surface 8 is often also mentioned in connection with free-form lenses as a projection plane or intermediate image plane.
- the projection plane is the illuminated area that is "thrown” / imaged into the image space through the imaging free-form lens or in connection with the vehicle construction - traffic space.
- an image of the light source 2 for example light-emitting LED surfaces
- the light module is installed in a motor vehicle, the light image is generated in front of the motor vehicle and can correspond to a preferably lawful light distribution.
- Only the parts of the light module / motor vehicle lighting device are shown schematically, which can play a role in the embodiments shown.
- an operational light module can also have other parts, such as, for example, heat sinks, support frames, mechanical and / or electrical actuating devices, covers and so on and immediately.
- the description of these standard components of a motor vehicle lighting device / light module is omitted here.
- FIG 3 a front view of the diaphragm 5 is shown, behind which a front lens 3 is arranged in front of the light source 2.
- the light source 2 is one example horizontally aligned row of seven LEDs 2a to 2g arranged side by side.
- the terms “horizontal” and “vertical”, “bottom” and “top” refer to the light module 1 installed in a motor vehicle.
- the number of LEDs is of course irrelevant, and more or less than seven LEDs can also be used. It is also conceivable that the LEDs are not arranged in a row but in a matrix, for example.
- the aperture 5 has two openings 9, 10. Because of these two openings, a luminous area is formed which is formed from two non-overlapping areas 11, 12.
- a first light bundle emerges from a first region 11, which is formed with the aid of a first opening 9, and forms a main light distribution, for example an apron light distribution 31, in the light image.
- a second light bundle emerges from a second region 12, which is formed with the aid of a second opening 10, which forms the Signlight partial light distribution 32 in the light image.
- an apron light distribution 31 is understood to mean lighting the road below the horizon up to shortly (2-5 m) in front of the vehicle. It is a dimmed light distribution with a mostly straight horizontal light-dark boundary 33 (see e.g. Fig. 10 ). But it can also be a classic low beam distribution with an increase in asymmetry.
- the shape of the light-dark boundary can be determined, for example, by a corresponding design of a lower edge 9 'of the first opening 9. With a straight horizontal lower edge 9 'of the first opening 9, a straight light-dark boundary can be created. If the lower edge 9 'of the first opening 9 has a kink / Z increase in the middle, the classic increase, that is to say the kink / Z increase, of a light-dark boundary is generated.
- the in the Figure 3 Openings 9, 10 shown are rectangular. However, it is conceivable that the openings 9, 10 have a different shape from the shape of a rectangle. The corners of the openings 9, 10 or the openings 9, 10 themselves can be rounded, for example.
- the first opening 9, as in Figure 3 is shown to have an elongated shape along the horizontal direction H.
- This elongated shape of the first opening 9 expands the main light distribution generated and, for example, meets the legal requirements (for example, lighting in a range between -40 ° and + 40 ° horizontal extension) for an apron light distribution can be.
- the second opening 10 can be expanded considerably less, so that its maximum extension is a fraction (for example a seventh) of the maximum extension of the first opening 9.
- the second luminous region 12 of the light exit surface 7, which is restricted by the second opening 10 is used to form the Signlight partial light distribution set up.
- the second opening 10 is spaced apart from the first opening 9, as in FIG Figures 1 and 3rd is shown.
- the distance between the openings 9, 10 essentially depends on the legal requirements for the signlight partial light distribution and the optical parameters (for example the focal length) of the optical imaging system (for example the lens 6).
- the second opening 10 can be arranged below and approximately in the middle of the elongated first opening 9. This is particularly favorable if the front lens 3 and the first opening 9 are designed symmetrically with respect to a V mentioned above projecting downwards. In general, it may be convenient if the second opening 10 is arranged symmetrically with respect to the vertical V.
- a person skilled in the art adjusts the optically relevant components, for example the optical device, the optical imaging system and the diaphragm, accordingly. It is expedient, for example, to position the front optical system 3, the diaphragm 5 and the lens 6 in such a way that a coordinate system HOV assigned to the motor vehicle lighting device (see Fig. 3 ) corresponds to a coordinate system H'V 'on a measuring screen in a lighting laboratory, ie for example that the coordinate origin O of the coordinate system HOV corresponds to the HV point (see e.g. Fig. 10 ) corresponds.
- the Signlight partial light distribution is symmetrical with respect to the vertical V 'on the measuring screen, as is the case, for example Fig. 10 can be seen.
- the luminous areas 11, 12 can emit different luminous flux. Since the Signlight partial light distribution represents a substantially “weaker” illumination, it can even be advantageous if the second region 12 emits a lower luminous flux than the first region 11. At this point it should be noted that a Signlight partial light distribution measured at a distance of 25 m on a measuring screen may not exceed a value of 625 candela according to ECE R123.
- Figure 4 shows a perspective view of a light source 2 'upstream lens 3'.
- the light source 2 ' now has, for example, six LEDs 2a to 2f.
- the front lens 3 ' has a continuous light exit surface 7' and in this respect the front lens 3 of FIG Figures 1 to 3 and the Figures 5 to 9 equal.
- the attachment optics 3, 3 'shown have a different number of arms. The arms are designed as light-guiding optic bodies. However, it may be appropriate if this number corresponds to the number of LEDs, for example.
- the arms 3a to 3g of the front lens 3 Figures 1 to 3 and the Figures 5 to 9 and the arms 3a to 3f of the front lens 3 'of Figure 4 emerge from a plate (light exit plate) 13, 13 'and end tapering in front of the light source 2, so that there is an air gap 14 between the arm ends 15 and the light source 2.
- All arms 3a to 3c and 3e to 3f or 3g except for one arm 3d can be of the same design. However, it is conceivable that the arms 3a to 3c and 3e to 3f or 3g can be designed differently.
- pairs of arms for example the arm 3c and the arm 3e or the arm 3b and the arm 3f, which are arranged on the side of the arm 3d and symmetrically with respect to the arm 3d, can each be of the same design. They have an upper concavely curved surface 16 and a lower substantially straight surface 17 and concavely curved side surfaces 18, 19.
- these surfaces 16 to 19 can have different curvature profiles, for example they can be curved differently. There is an optical medium between the surfaces.
- the course of the surfaces 16 to 19 delimiting the medium is adapted to the refractive index of the medium in such a way that light beams propagating within the arms 3a to 3g / 3f do not leave the arms due to the total reflection and essentially only through the light exit surface 7, 7 ' can emerge from the front optics 3, 3 '.
- the arms 3a to 3g come together at a distance in front of the plate 13, so that light beams coming from different arms mix / overlap while they are moving in the direction of plate 13 and then in the further course in plate 13 in the direction of the light exit surface 7 spread.
- the front lens 3, 3 ' has an arm 3d, which is designed differently than the rest of the arms. If the arms of the front lens are arranged in a row, the arm 3d preferably lies approximately in the middle of this row (see, for example Fig. 4 ). Again Figure 5 can be seen, the one arm 3d has a downwardly projecting, preferably convex lower region 20, which lower region 20 extends from a light entry surface 15 of the arm 3d to the light exit surface 7 and becomes ever higher in this direction.
- the lower region 20 can be approx. 2 mm high and 2 mm long and have an intersection of approx. 20 mm.
- the arm 3d is designed such that the light coupled into it from the LED 2d assigned to the arm 3d can be used at least partially to form the second light bundle.
- the lower area 20 of the arm 3d runs out into a curved area 21 of the light exit surface 7, this curved area 21 projecting over an edge 23 of the light exit surface 7 ( Figures 4 to 7 and 9 ).
- the second opening 10 of the diaphragm 4 is arranged and designed to match the curved region 21, as in FIG Figure 1 is shown.
- light emerging through the arched region 21 of the light exit surface 7 is used to generate the Signlight partial light distribution, which light advantageously has a lower intensity than light coming from other arms, for example.
- a lower boundary side 22 of the lower region 20 is designed as part of a paraboloid.
- light rays that couple into arm 3d and pass through a focal point of the paraboloid are collimated. This increases, for example, the homogeneity of the Signlight partial light distribution.
- Figure 10 shows an example of a light image generated with the motor vehicle lighting device according to the invention.
- the light image comprises an apron light distribution 31 with a straight light-dark boundary 33 and a signlight partial light distribution 32.
- the signlight partial light distribution 32 is spaced apart from the apron light distribution 31, ie it is a dark area 34 present in the vertical direction V between these two light distributions, as is the case with Fig. 10 can be seen.
- This dark area 34 has the advantage, for example, that the light-dark boundary 33 is not blurred, but remains clearly visible.
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- Engineering & Computer Science (AREA)
- General Engineering & Computer Science (AREA)
- Physics & Mathematics (AREA)
- Microelectronics & Electronic Packaging (AREA)
- Optics & Photonics (AREA)
- Non-Portable Lighting Devices Or Systems Thereof (AREA)
- Lighting Device Outwards From Vehicle And Optical Signal (AREA)
Description
Die Erfindung betrifft eine Kraftfahrzeugbeleuchtungsvorrichtung, die zumindest eine Lichtquelle, welche in eingeschaltetem Zustand Licht abstrahlt, eine der zumindest einen Lichtquelle zugeordnete Optikvorrichtung, in welche Licht der zumindest einen Lichtquelle eingestrahlt ist, und ein der Optikvorrichtung zugeordnetes, optisches Abbildungssystem umfasst, welches aus der Optikvorrichtung austretendes Licht vor die Kraftfahrzeugbeleuchtungsvorrichtung in Form zweier Lichtverteilungen, nämlich in Form einer Hauptlichtverteilung und einer Signlight-Teil-Lichtverteilung abbildet. Wenn die Kraftfahrzeugbeleuchtungsvorrichtung in ein Kraftfahrzeug eingebaut ist und in Betrieb genommen wird, erzeugt die Kraftfahrzeugbeleuchtungsvorrichtung diese Lichtverteilungen in einem Abstand vor dem Kraftfahrzeug.The invention relates to a motor vehicle lighting device which comprises at least one light source which emits light in the switched-on state, an optical device assigned to the at least one light source, into which light from the at least one light source is radiated, and an optical imaging system which is assigned to the optical device and which comprises the optical device images emerging light in front of the motor vehicle lighting device in the form of two light distributions, namely in the form of a main light distribution and a signlight partial light distribution. When the motor vehicle lighting device is installed in a motor vehicle and put into operation, the motor vehicle lighting device generates these light distributions at a distance in front of the motor vehicle.
Außerdem betrifft die Erfindung ein Kraftfahrzeug mit zumindest einer solchen Kraftfahrzeugbeleuchtungsvorrichtung.The invention also relates to a motor vehicle with at least one such motor vehicle lighting device.
Im Zusammenhang mit der vorliegenden Erfindung wird unter dem Begriff Signlight-Teil-Lichtverteilung eine Teil-Lichtverteilung verstanden, welche zur Beleuchtung von hoch über einer Fahrbahn angebrachter, befestigter Verkehrsschildern dient. Die Signlight-Teil-Lichtverteilung wird manchmal auch Overhead-Sign-Teil-Lichtverteilung genannt. Beispielsweise kann eine Signlight-Teil-Lichtverteilung gemäß den ECE Regelungen einer Teil-Lichtverteilung entsprechen, die je nach Art der verwendeten Lichtquellen und der Steuerung der Kraftfahrzeugbeleuchtungsvorrichtung in einer oberen Hälfte der Zone A (gemäß ECE R98) und/oder der Zone III (gemäß ECE R112) und/oder in der Zone III (gemäß ECE R123) liegt.In connection with the present invention, the term signlight partial light distribution is understood to mean a partial light distribution which serves to illuminate fastened traffic signs mounted high above a roadway. The signlight partial light distribution is sometimes also called overhead sign partial light distribution. For example, a Signlight partial light distribution according to the ECE regulations can correspond to a partial light distribution which, depending on the type of light sources used and the control of the motor vehicle lighting device, in an upper half of Zone A (according to ECE R98) and / or Zone III (according to ECE R112) and / or in zone III (according to ECE R123).
Kraftfahrzeugbeleuchtungsvorrichtungen zum Erzeugen von Signlight-Teil-Lichtverteilung - kurz Signlight - sind in dem Stand der Technik bekannt. Die
Die Anmeldung
Weiters zeigt
Die Aufgabe der vorliegenden Erfindung besteht darin, die obengenannten Nachteile des Stands der Technik zu beseitigen und eine Kraftfahrzeugbeleuchtungsvorrichtung zu schaffen, die modernen Designansprüchen Rechnung trägt, auf kosten- und zeitaufwendige optische Strukturen verzichtet und platzsparend ist. Die Aufgabe wird mit einer eingangs genannten Kraftfahrzeugbeleuchtungsvorrichtung erfindungsgemäß dadurch gelöst, dass die Optikvorrichtung dazu eingerichtet ist, das Licht der zumindest einen Lichtquelle zu bündeln und in Form zumindest zweier räumlich getrennter Lichtbündel - eines ersten Lichtbündels und eines zweiten Lichtbündels - zu dem optischen Abbildungssystem zu lenken, und das optische Abbildungssystem dazu eingerichtet ist, jedes Lichtbündel in Form einer Lichtverteilung vor die Kraftfahrzeugbeleuchtungsvorrichtung zu projizieren (das erste Lichtbündel in Form einer Hauptlichtverteilung und das zweite Lichtbündel in Form einer Signlight-Teil-Lichtverteilung) wobei der Optikvorrichtung zumindest eine senkrecht zu einer optischen Achse des optischen Abbildungssystems angeordnete Blende nachgeordnet ist, wobei die Blende zumindest eine erste Öffnung und zumindest eine zweite Öffnung aufweist, wobei die zumindest eine erste Öffnung dazu eingerichtet ist, das erste, die Hauptlichtverteilung bildende Lichtbündel zu formen, und die zumindest eine zweite Öffnung dazu eingerichtet ist, das zweite, die Signlight-Teil-Lichtverteilung bildende Lichtbündel zu formen. Bei der erfindungsgemäßen Beleuchtungsvorrichtung ist vorgesehen, dass sie eine Mehrzahl von Lichtquellen, vorzugsweise eine Mehrzahl von LEDs, umfasst und die Optikvorrichtung eine Mehrzahl von lichtleitenden Optikkörpern aufweist, wobei jedem lichtleitenden Optikkörper genau eine LED zugeordnet ist, wobei jeder lichtleitende Optikkörper hinsichtlich der zugehörigen LED derart angeordnet und/ oder ausgebildet ist, dass nur das Licht der zugehörigen LED in den Optikkörper einkoppelt. Ein Vorteil dabei ist zum Beispiel, dass es sich mittels der LEDs und der lichtleitenden Optikkörper ein kollimiertes homogenes Licht beziehungsweise eine homogene Lichtverteilung mit gewünschtem Auslauf erzielen lässt.Dabei wird unter dem Begriff "lichtleitende Optikkörper" ein Optikkörper verstanden, in dem sich in den Optikkörper eingekoppelte Lichtstrahlen aufgrund der Totalreflexion ausbreiten und diesen nur dann verlassen, wenn sie auf eine Störstelle, wie beispielsweise eine Umlenkprisma oder eine Verunreinigung des Materials, oder auf ein eine Austrittsfläche umfassendes Ende des Optikkörpers treffen.The object of the present invention is to eliminate the above-mentioned disadvantages of the prior art and to provide a motor vehicle lighting device which takes modern design requirements into account, dispenses with costly and time-consuming optical structures and is space-saving. The object is achieved according to the invention with a motor vehicle lighting device mentioned at the outset in that the optical device is set up to bundle the light from the at least one light source and to direct it to the optical imaging system in the form of at least two spatially separated light bundles - a first light bundle and a second light bundle , and the optical imaging system is configured to project each light beam in the form of a light distribution in front of the motor vehicle lighting device (the first light beam in the form of a main light distribution and the second light beam in the form of a signlight partial light distribution), the optical device at least one perpendicular to an optical one Is arranged downstream of the axis of the optical imaging system arranged aperture, wherein the aperture has at least a first opening and at least a second opening, wherein the at least one first opening is configured to the first, the Hauptli to form light distribution forming light distribution, and the at least one second opening is configured to form the second light light forming the Signlight partial light distribution. In the lighting device according to the invention, it is provided that it comprises a plurality of light sources, preferably a plurality of LEDs, and the optical device has a plurality of light-guiding optic bodies, with exactly one LED being assigned to each light-guiding optic body, each light-guiding optic body with respect to the associated LED in this way is arranged and / or designed such that only the light of the associated LED couples into the optic body. One advantage is, for example, that the LEDs and the light-guiding optic body can achieve a collimated homogeneous light or a homogeneous light distribution with the desired outlet. The term "light-guiding optic body" is understood to mean an optic body in which light rays coupled into the optic body propagate due to the total reflection and only leave it when they are on an impurity, such as a deflecting prism or contamination of the material, or strike an end of the optic body that includes an exit surface.
Wie aus dem Stand der Technik bekannt ist, ist unter dem Begriff "Lichtbündel" ein räumlich begrenzter Bereich zu verstehen, in dem sich Licht ausbreitet. Begrenzt wird ein Lichtbündel durch Randstrahlen. Daher wird im Zusammenhang mit der vorliegenden Erfindung unter dem Begriff "zwei räumlich getrennte Lichtbündel" zwei sich nicht überlappende, beabstandete Lichtbündel verstanden, deren Randstrahlen sich nicht überschneiden.As is known from the prior art, the term “light bundle” is to be understood as a spatially limited area in which light propagates. A light beam is limited by marginal rays. Therefore, in connection with the present invention, the term “two spatially separated light bundles” is understood to mean two non-overlapping, spaced light bundles, the edge rays of which do not overlap.
Hinsichtlich einer räumlichen Trennung der Lichtbündel kann es von Vorteil sein, wenn die erste Öffnung der Blende eine untere Kante aufweist, welche untere Kante eine Hell-Dunkel-Grenze im Lichtbild bildet, und die zweite Öffnung unterhalb eines mittleren Bereichs der ersten Öffnung angeordnet ist.With regard to a spatial separation of the light beams, it can be advantageous if the first opening of the diaphragm has a lower edge, the lower edge forms a light-dark boundary in the light image, and the second opening is arranged below a central region of the first opening.
Hinsichtlich einer richtigen Positionierung der Signlight-Teil-Lichtverteilung im Lichtbild kann es zweckdienlich sein, wenn die zweite Öffnung unterhalb der ersten Öffnung und symmetrisch hinsichtlich einer Vertikale angeordnet ist. Im Zusammenhang mit der vorliegenden Erfindung wird unter dem Begriff "Vertikale" eine Achse eines mit der Kraftfahrzeugbeleuchtungsvorrichtung verbundenen Koordinatensystems, die vertikal ausgerichtet ist, wenn die Kraftfahrzeugbeleuchtungsvorrichtung in einer dem Einbauzustand in ein Kraftfahrzeug entsprechenden Lage befindet. Dabei ist das Koordinatensystem derart gewählt, dass es einem Koordinatensystem im Bildraum entspricht, welches für Messungen an den abgestrahlten Lichtverteilungen verwendet wird. So entspricht zum Beispiel die Vertikale in dem mit der Kraftfahrzeugbeleuchtungsvorrichtung verbundenen Koordinatensystem der Vertikale auf einem Messschirm, der zum Abmessen von mittels der Kraftfahrzeugbeleuchtungsvorrichtung erzeugten Lichtverteilungen in einem Lichttechniklabor aufgestellt wird.With regard to the correct positioning of the signlight partial light distribution in the photograph, it can be expedient if the second opening is arranged below the first opening and symmetrically with respect to a vertical. In connection with the present invention, the term "vertical" refers to an axis of a coordinate system connected to the motor vehicle lighting device, which is oriented vertically when the motor vehicle lighting device is in a position corresponding to the installed state in a motor vehicle. The coordinate system is selected such that it corresponds to a coordinate system in the image space that is used for measurements on the emitted light distributions. For example, the vertical in the coordinate system connected to the motor vehicle lighting device corresponds to the vertical on a measuring screen, which is set up in a lighting technology laboratory for measuring light distributions generated by the motor vehicle lighting device.
Hinsichtlich der Qualität der erzeugten Lichtverteilung kann es vorteilhaft sein, wenn die Blende in einer Brennebene des optischen Abbildungssystems angeordnet ist. Dabei soll der Begriff "Brennebene" nicht einschränkend ausgelegt sein. Das optische Abbildungssystem kann zum Beispiel eine Projektionsfläche/Projektionsebene aufweisen, wobei alle sich in der Projektionsfläche befindenden Objekte in einen dem optischen Abbildungssystem zugeordneten Bildraum scharf abgebildet werden.With regard to the quality of the light distribution generated, it can be advantageous if the diaphragm is arranged in a focal plane of the optical imaging system. The term "focal plane" should not be interpreted restrictively. The optical imaging system can, for example, have a projection surface / projection plane, wherein all objects located in the projection surface are sharply imaged in an image space assigned to the optical imaging system.
Es kann zweckdienlich sein, wenn die Optikvorrichtung eine durchgehende, vorzugsweise ebene, Lichtaustrittsfläche aufweist, an welcher Lichtaustrittsfläche die Blende, vorzugsweise abstandslos, angeordnet ist. Der Vorteil an dieser Konstellation ist, dass ein gleichzeitig durch die Lichtaustrittsfläche und die Blende gestaltetes Leuchtbild bzw. eine gleichzeitig durch die Lichtaustrittsfläche und die Blende gestaltete Leuchtfläche in der Projektionsfläche des optischen Abbildungssystems angeordnet werden kann.It can be expedient if the optical device has a continuous, preferably flat, light exit surface, on which light exit surface the diaphragm is arranged, preferably without a gap. The advantage of this constellation is that a luminous image designed simultaneously through the light exit surface and the diaphragm or a luminous surface simultaneously designed through the light exit surface and the diaphragm can be arranged in the projection surface of the optical imaging system.
Um die Größe der Kraftfahrzeugbeleuchtungsvorrichtung gering zu halten und die Größe der Leuchtfläche zu vergrößern, kann es zweckmäßig sein, wenn alle Lichtquellen, vorzugsweise alle LEDs, in einer senkrecht zur optischen Achse angeordnete Fläche, vorzugsweise Ebene, liegen und sich alle Optikkörper (ausgehend von der Lichtaustrittsfläche der Optikvorrichtung) in Richtung der Lichtquellen verjüngen. Darüber hinaus kann es vorteilhaft sein, wenn zumindest ein Teil der lichtleitenden Optikkörper, vorzugsweise alle lichtleitenden Optikkörper eine gemeinsame Lichtaustrittsplatte aufweisen.In order to keep the size of the motor vehicle lighting device small and to increase the size of the luminous area, it can be expedient if all light sources, preferably all LEDs, are located in a surface, preferably plane, perpendicular to the optical axis and all optical bodies (starting from the Taper the light exit surface of the optical device) in the direction of the light sources. In addition, it can be advantageous if at least some of the light-guiding optic bodies, preferably all the light-guiding optic bodies, have a common light exit plate.
Bei einem besonders robusten Bau der Optikvorrichtung kann es vorgesehen sein, dass die Lichtaustrittsplatte mit den dem Teil zugehörigen lichtleitenden Optikkörpern, vorzugsweise mit allen lichtleitenden Optikkörpern, einstückig ausgebildet ist.In the case of a particularly robust construction of the optical device, it can be provided that the light exit plate is formed in one piece with the light-conducting optical bodies associated with the part, preferably with all light-conducting optical bodies.
Weiters kann es von Vorteil sein, wenn die Lichtquellen in einer horizontalen, zu der optischen Achse der Kraftfahrzeugbeleuchtungsvorrichtung senkrecht stehenden Reihe angeordnet sind und zumindest ein in der Reihe mittig liegender Optikkörper einen nach unten (in Hinblick auf die restlichen Optikkörper) hinausragenden, vorzugsweise konvex ausgebildeten, unteren Bereich aufweist, welcher sich von einer Lichteintrittsfläche des in der Reihe der Optikkörper mittig liegenden Optikkörpers bis zur Lichtaustrittsfläche erstreckt. Vorteilhaft dabei ist, dass eine Abzweigung des Lichts einer einzigen LED ausreichen kann, um die Signlight-Teil-Lichtverteilung zu erzeugen.Furthermore, it can be advantageous if the light sources are arranged in a horizontal row perpendicular to the optical axis of the motor vehicle lighting device and at least one optic body lying in the middle of the row has a preferably convex design projecting downward (with respect to the remaining optic bodies) , Has lower area, which extends from a light entry surface of the center in the row of optics body optic body to the light exit surface. It is advantageous here that a branching of the light from a single LED can be sufficient to generate the Signlight partial light distribution.
Um ein besonders homogenes, für Fahrer angenehmes Signlight zu erzeugen, kann es zweckmäßig sein, wenn der untere Bereich eine untere, vorzugsweise parabolisch ausgebildete, Begrenzungsseite aufweist.In order to generate a particularly homogeneous signlight that is pleasant for drivers, it can be expedient if the lower region has a lower, preferably parabolic, boundary side.
Um die Signlight-Teil-Lichtverteilung breiter zu machen, kann es vorteilhaft sein, wenn zumindest der in der Reihe mittig liegende Optikkörper zur Bildung des zweiten Lichtbündels eingerichtet ist.In order to make the Signlight partial light distribution wider, it can be advantageous if at least the optical body lying in the middle of the row is set up to form the second light beam.
Es kann darüber hinaus mit Vorteil vorgesehen sein, dass ausschließlich der in der Reihe mittig liegende Optikkörper zur Bildung des zweiten Lichtbündels eingerichtet ist. Dabei können die anderen Lichtquellen, vorzugsweise LEDs, die nicht für die Signlight-Teil-Lichtverteilung benutzt werden, nach Belieben gedimmt werden.In addition, it can advantageously be provided that only the optical body lying in the center of the row is set up to form the second light beam. The other light sources, preferably LEDs, which are not used for the Signlight partial light distribution, can be dimmed as desired.
Hinsichtlich des Einsatzes der Kraftfahrzeugbeleuchtungsvorrichtung im Stadtverkehr, kann es zweckdienlich sein, wenn die Hauptlichtverteilung als eine Vorfeld-Lichtverteilung mit einer geraden horizontalen Hell-Dunkel-Grenze oder als eine Abblendlichtverteilung mit einer einen Anstieg aufweisenden Hell-Dunkel-Grenze ausgebildet ist.With regard to the use of the motor vehicle lighting device in city traffic, it may be expedient if the main light distribution is designed as an apron light distribution with a straight horizontal cut-off line or as a low-beam light distribution with a cut-off line with an increase.
Um das Erfüllen der gesetzlich vorgeschriebenen Normen zu erleichtern, kann es vorgesehen sein, dass das optische Abbildungssystem als eine Linse ausgebildet ist, wobei die Linse die Lichtbündel in vertikaler Richtung kollimiert und in horizontaler Richtung aufweitet.In order to facilitate the fulfillment of the legally prescribed standards, it can be provided that the optical imaging system is designed as a lens, the lens collimating the light beams in the vertical direction and expanding in the horizontal direction.
Die Erfindung ist nachstehend anhand beispielhafter nicht einschränkender Ausführungsformen näher erläutert, die in einer Zeichnung veranschaulicht sind. In dieser zeigt:
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Fig. 1 ein Lichtmodul eines Kraftfahrzeugscheinwerfers; -
Fig. 2 eine Seitenansicht des Lichtmoduls derFig. 1 ; -
Fig. 3 eine Vorderansicht einer Blende und einer Vorsatzoptik; -
Fig. 4 eine perspektivische Ansicht einer Lichtquellen vorgelagerten Vorsatzoptik; -
Fig. 5 eine Seitenansicht derFig. 4 ; -
Fig. 6 eine Hinteransicht einer Vorsatzoptik; -
Fig. 7 eine Vorderansicht der Vorsatzoptik derFig. 6 ; -
Fig. 8 eine Draufsicht einer Lichtquellen vorgelagerten Vorsatzoptik; -
Fig. 9 eine Unteransicht derFig. 8 , und -
Fig. 10 eine Vorfeld-Lichtverteilung mit einer geraden Hell-Dunkel-Grenze und einer Signlight-Teil-Lichtverteilung.
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Fig. 1 a light module of a motor vehicle headlight; -
Fig. 2 a side view of the light module ofFig. 1 ; -
Fig. 3 a front view of an aperture and an optical attachment; -
Fig. 4 a perspective view of a light source upstream optics; -
Fig. 5 a side view of theFig. 4 ; -
Fig. 6 a rear view of a front lens; -
Fig. 7 a front view of the front lens ofFig. 6 ; -
Fig. 8 a plan view of a light source upstream optics; -
Fig. 9 a bottom view of theFig. 8 , and -
Fig. 10 an apron light distribution with a straight light-dark boundary and a signlight partial light distribution.
Zunächst wird auf
In
Wie oben erwähnt, weist die Vorsatzoptik 3, 3' einen Arm 3d auf, der anders als der Rest der Arme ausgebildet ist. Dabei, falls die Arme der Vorsatzoptik in einer Reihe angeordnet sind, liegt der Arm 3d vorzugsweise in etwa der Mitte dieser Reihe (siehe z.B.
Solange es sich nicht aus der Beschreibung einer der oben beschriebenen Ausführungsformen zwangsläufig ergibt, wird davon ausgegangen, dass diese beliebig miteinander kombiniert werden können. Unter anderem bedeutet dies, dass auch die technischen Merkmale einer Ausführungsform mit den technischen Merkmalen einer anderen Ausführungsform einzeln und unabhängig voneinander nach Belieben kombiniert werden können, um auf diese Weise zu einer weiteren Ausführungsform derselben Erfindung zu gelangen und ohne dabei die ursprüngliche Offenbarung zu überschreiten.As long as it does not necessarily result from the description of one of the above-described embodiments, it is assumed that these can be combined with one another as desired. Among other things, this means that the technical features of one embodiment can also be combined individually and independently of one another as desired with the technical features of another embodiment, in order in this way to arrive at a further embodiment of the same invention and without thereby exceeding the original disclosure.
Claims (15)
- Motor vehicle lighting device (1) comprising- at least one light source (2),- an optical device (3) associated with the at least one light source (2), into which light from the at least one light source (2) is irradiated, and- an optical imaging system (6) which is assigned to the optical device (3) and images light emerging from the optical device (3) in front of the motor vehicle lighting device (1), the optical device (3) being set up to bundle the light from the at least one light source and to direct it in the form of at least two spatially separated light beams - a first light beam and a second light beam - to the optical imaging system (6), and the optical imaging system (6) is adapted to project each light beam in the form of a light distribution in front of the vehicle lighting device (1),- the first light beam in the form of a main light distribution and the second light beam in the form of a signlight partial light distribution,wherein at least one diaphragm (5) arranged perpendicular to an optical axis (4) of the optical imaging system (6) is arranged downstream of the optical device (3) and has at least one first opening (9) and at least one second opening (10),
wherein said at least one first opening (9) is adapted to form said first light beam forming the main light distribution and said at least one second opening (10) is adapted to form said second light beam forming the signlight partial light distribution, characterized in that it comprises a plurality of light sources (2a to 2g), preferably a plurality of LEDs, and the optical device (3) has a plurality of light-conducting optical bodies (3a to 3g), each light-conducting optical body being assigned exactly one light source, each light-conducting optical body being arranged and/or designed with respect to the associated light source in such a way that only the light of the associated light source is coupled into the optical body, characterized in that the optical device (3) is provided with a light-guiding optical body (3a to 3g), which is arranged and/or designed in such a way that only the light of the associated light source is coupled into the optical body, and in that the optical device (3) is provided with a light-guiding optical body (3a to 3g), which is arranged and/or designed in such a way that only the light of the associated light source is coupled into the optical body. - Motor vehicle lighting device according to claim 1, characterized in that the first opening (9) of the screen has a lower edge (9'), which lower edge (9') forms a light-dark boundary in the light image, and the second opening (10) is arranged below a central region of the first opening (9).
- the motor vehicle lighting device according to claim 1 or 2, characterized in that the second opening (10) is arranged below the first opening (9) and symmetrically with respect to a vertical (V).
- Motor vehicle lighting device according to one of claims 1 to 3, characterized in that the diaphragm (5) is arranged in a focal plane (8) of the optical imaging system (6).
- Motor vehicle lighting device according to one of claims 1 to 4, characterized in that the optical device (3) has a continuous, preferably flat, light exit surface (7), on which light exit surface (7) the diaphragm (5) is arranged, preferably without spacing.
- Motor vehicle lighting device according to one of claims 1 to 5, characterized in that all light sources (2a to 2g), preferably all LEDs, lie in a surface, preferably a plane, arranged perpendicular to the optical axis (4) and all optical bodies (3a to 3g) taper in the direction of the light sources.
- Motor vehicle lighting device according to one of claims 1 to 6, characterized in that at least some of the light-conducting optical bodies, preferably all light-conducting optical bodies, have a common light exit plate (13).
- Motor vehicle lighting device according to claim 7, characterized in that the light exit plate (13) is formed integrally with the light-conducting optical bodies associated with the part, preferably with all light-conducting optical bodies.
- Motor vehicle lighting device according to one of claims 1 to 8, characterized in that the light sources (2a to 2g) are arranged in a horizontal row perpendicular to the optical axis (4) and at least one optical body (3d) lying centrally in the row has a downwardly projecting, preferably convexly formed lower region (20) which extends from a light entry surface of the optical body (3d) lying centrally in the row to the light exit surface (7).
- Motor vehicle lighting device according to claim 9, characterized in that the lower region (20) has a lower, preferably parabolically formed, boundary side (22).
- Motor vehicle lighting device according to claim 9 or 10, characterized in that at least the optical body (3d) lying centrally in the row is arranged to form the second light beam.
- Motor vehicle lighting device according to claim 9 or 10, characterized in that only the optical body (3d) lying centrally in the row is set up to form the second light beam.
- Motor vehicle lighting device according to any one of claims 1 to 12, characterized in that the main light distribution is designed as an apron light distribution with a straight horizontal cut-off line or as a dipped beam distribution with a cut-off line having an upward slope.
- Motor vehicle lighting device according to one of claims 1 to 13, characterized in that the optical imaging system (6) is designed as a lens, the lens collimating the light beams in the vertical direction and widening them in the horizontal direction.
- Motor vehicle or motor vehicle headlamp with at least one motor vehicle lighting device according to one of claims 1 to 14.
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ATA50712/2016A AT518551B1 (en) | 2016-08-04 | 2016-08-04 | Automotive illuminating device |
PCT/AT2017/060162 WO2018023141A1 (en) | 2016-08-04 | 2017-06-29 | Motor vehicle headlight |
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DE202020102825U1 (en) * | 2020-05-18 | 2020-06-19 | Nimbus Group Gmbh | Asymmetrical linear lens and associated linear lamp |
US11629832B2 (en) | 2020-06-01 | 2023-04-18 | Flex-N-Gate Advanced Product Development, Llc | Homogenous lit line image vehicle lamp assembly |
US11506359B2 (en) | 2020-06-01 | 2022-11-22 | Flex-N-Gate Advanced Product Development, Llc | Homogenous lit line image vehicle lamp assembly |
EP4185804A1 (en) * | 2020-07-24 | 2023-05-31 | Lumileds LLC | Lighting module for a vehicle headlamp |
WO2022165758A1 (en) * | 2021-02-05 | 2022-08-11 | 华域视觉科技(上海)有限公司 | Primary optical element, primary optical assembly, optical assembly, vehicle lamp lighting device and vehicle |
EP4290127A4 (en) * | 2021-08-12 | 2024-05-29 | Hasco Vision Tech Co Ltd | Vehicle pixelated lighting device, vehicle lamp, and vehicle |
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2016
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2017
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- 2017-06-29 US US16/319,510 patent/US10627065B2/en active Active
- 2017-06-29 KR KR1020197005002A patent/KR102143845B1/en active IP Right Grant
- 2017-06-29 JP JP2019505380A patent/JP6792051B2/en active Active
- 2017-06-29 WO PCT/AT2017/060162 patent/WO2018023141A1/en unknown
- 2017-06-29 CN CN201780048351.1A patent/CN109477621B/en active Active
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Also Published As
Publication number | Publication date |
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US10627065B2 (en) | 2020-04-21 |
WO2018023141A1 (en) | 2018-02-08 |
AT518551B1 (en) | 2017-11-15 |
JP6792051B2 (en) | 2020-11-25 |
CN109477621B (en) | 2022-04-01 |
US20200003382A1 (en) | 2020-01-02 |
CN109477621A (en) | 2019-03-15 |
EP3494343A1 (en) | 2019-06-12 |
AT518551A4 (en) | 2017-11-15 |
KR20190032468A (en) | 2019-03-27 |
KR102143845B1 (en) | 2020-08-13 |
JP2019523538A (en) | 2019-08-22 |
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