奥地利专利AT518343A1 Lighting device for a motor vehicle

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专利摘要:
The invention relates to a lighting device (401, 402, 403, 404, 405) for a motor vehicle (1000) with projection optics (1-5) and light sources (1'-5 ', 6'-10', 11'-15 '). 11a '- 15a'; 16 '- 21'; 22 '- 26'; 22a '- 26a'), each light source (1 '- 5') associated with a projection optics (1 - 5) contributing to a defined illumination function by it generates a light segment, and wherein the light segments (L1 - L5, M1 - M5) contributing to a respective defined illumination function are projected by the corresponding projection optics (1 - 5) in a ground projection in such a way that can be generated by adjacent projection optics (1-5) Light segments (L1 - L5, M1 - M5) are immediately adjacent to each other and immediately adjacent to each other or partially overlap, and wherein each light source (1 '- 5') independently of the other light sources (1 '- 5') can be controlled.
公开号:AT518343A1
申请号:T50238/2016
申请日:2016-03-23
公开日:2017-09-15
发明作者:Kemetmüller Matthias；Eichinger Bernd；Bauer Friedrich
申请人:Zkw Group Gmbh；
IPC主号:

专利说明:

Lighting SUCCESSION for a motor vehicle
The invention relates to a lighting device, in particular a floor projection lighting device, for a motor vehicle for generating at least one lighting function, in particular a floor projection lighting function.
Furthermore, the invention relates to an above-mentioned lighting device, which is designed as a motor vehicle headlight.
Finally, the invention also relates to a motor vehicle headlight, which has one or more of the above lighting devices.
Lighting functions for a motor vehicle include, for example, typical lighting functions such as high beam, low beam, etc. as well as signaling functions, e.g. Direction indicator (turn signals), daytime running lights, etc. Light functions, in particular signaling functions such as those listed above, can only be perceived by road users who are (very) close to the motor vehicle when they are directly on the vehicle or the View lighting device. Road users who are not actively focusing on traffic, such as pedestrians, can easily overlook such lighting function and do not notice, for example, when a vehicle is indicating a turn. In particular, this often occurs when pedestrians look to the ground or to their smartphone.
It is an object of the present invention to provide a solution to this problem.
This object is achieved with an illumination device mentioned in the introduction in that, according to the invention, the illumination device comprises: two or more projection optics; - Light sources, each projection optics is associated with at least one light source, each light source comprises one or more light-emitting diodes, and wherein each of a projection optics associated light source contributes to a defined lighting function; the projection optics being arranged to emit light of their respective associated light source or light sources in the form of light segments in a ground projection, e.g. projecting onto a roadway, and wherein the light segments contributing to a respective defined illumination function are projected by the corresponding projection optics in the ground projection such that light segments that can be generated by neighboring projection optics are immediately adjacent to one another in this ground projection and / or in a screen projection, and wherein each Light source is controlled independently of the other light sources.
For example, it is provided that the light segments in the ground projection and / or in the screen projection lie so directly next to one another that they immediately adjoin one another or partially overlap.
It can also be provided that the light segments in the floor projection and / or in the screen projection are so directly adjacent to each other that they are spaced from each other.
It can also be provided hybrid forms in which juxtaposed light segments have a distance from each other, others overlap each other, and again directly adjacent to each other. There are any mixed forms of these three possibilities conceivable.
Furthermore, the above-mentioned object is achieved with a motor vehicle headlight or a motor vehicle tail lamp which has one or more illumination devices described above.
With each light source can thus be generated via an associated projection optics, a light segment of a defined lighting function, and in that each light source can be switched on and off independently of the other light sources, and preferably, when it comes to dimmable light sources, regardless of the be dimmed other light sources, different light segments can be projected into an area immediately in front of the lighting device and thus in front of the motor vehicle, where they can be perceived by other road users on the Lahrbahn.
The term "adjacent" as used above refers to projection optics that generate light segments of a particular illumination function, and one or more projection optics that produce a different illumination function may be located between two such "neighboring" projection optics.
In the illuminable lighting functions, i. Lighting functions or signaling function, for example, are not statutory lighting functions defined, but additional lighting functions, such as
Light functions or additional signaling functions, which can be realized in addition to the statutory lighting function prescribed.
However, it can also be provided that the illumination functions generated according to the invention themselves already fulfill the legal requirements for the corresponding illumination function.
The projection optics are preferably arranged such, e.g. rotated to each other, and / or formed accordingly that the light flux exiting them each projection optics is directed to another area on the floor. In this way, together with the features described above, an illumination function can be realized in the form of an animation, e.g. a luminous "cursor" traveling over the roadway or a "cursor" growing on the roadway.
For example, it is provided that a lighting function has a light function, e.g. Cornering light floor projection function (which meets the legal requirements for a cornering light) or an additional cornering ground projection function (which does not meet the legal requirements for a cornering light) is.
It can also be provided that a lighting function is a signaling function, preferably a flashing light floor projection function (which fulfills the legal requirements for a flashing light) or preferably an additional flashing light floor projection function (which does not meet the legal requirements for a flashing light).
The additional flashing light floor projection function is provided in addition to the actual flashing light function. Other road users, such as pedestrians or cyclists, particularly those who look down, can better recognize the (intentional) turning operation of a vehicle indicating it by means of the flashing light ground projection function or the auxiliary flashing light ground projection function.
In particular, a combination of these two (additional) lighting functions described above can be realized. In particular, it is provided to combine a ground-projecting turn signal with a segmented cornering-ground projection function, wherein preferably the orange (yellow) / white segments are alternately switched to have no mixture of colors.
For example, it is provided that the light segments are formed club-shaped in a roadway projection, wherein the light segments widening away from the lighting device.
Preferably, it may be provided that the light segments - in front of the lighting device to a maximum of 10 meters or up to 15 meters or up to 20 meters or up to 25 meters and / or - laterally, left or right of the lighting device, up to 10 meters or to a maximum of 15 meters or to a maximum of 20 meters or to a maximum of 25 meters.
It can be provided that the light segments start at a distance of about 0 meters to about 1.5 meters in front of and / or laterally beside the lighting device.
For example, it is provided that the light segments in the roadway projection begin in an angular range of about 20 ° or -20 ° to the vehicle longitudinal axis and preferably in an angular range of 20 ° to and including 90 ° or -20 ° to -90 ° to the vehicle longitudinal axis.
In the taillights, the angular range is preferably 0 ° to 90 ° inclusive, particularly because there is no apron illuminated by the low beam.
Preferably, the light segments connect directly to the laterally outer region of a low beam distribution.
It is preferably provided that, in the case where one light source comprises two or more light-emitting diodes, each light-emitting diode of this light source can be controlled independently of the other light-emitting diodes of the light source.
Each light-emitting diode can thus be switched on and off independently of the other LEDs of a light source, and preferably, when it comes to dimmable light-emitting diodes, are also dimmed independently of the other light-emitting diodes of the light source.
It can be provided that each projection optics are assigned to n light sources, with n = 1, 2, 3, 4,..., Each of which contributes to a defined illumination function to a light source arranged in projection optics. If, for example, each projection optical system of a lighting device has exactly one light source, exactly one lighting function can be realized with this lighting device (n = 1). At n = 2, two illumination functions, e.g. a
Signaling function (e.g., a flashing light floor projection function) and a light function (e.g., a cornering light floor projection function), and these lighting functions may preferably be simultaneously realized in an overlay.
It can be provided that exactly one light source is assigned to each projection optics, and that all projection optics generate light segments of a single illumination function.
It can also be provided that exactly one light source is assigned to each projection optics, and two or more groups of projection optics are provided, each group being provided for producing a defined illumination function.
In particular, it may be provided in this context that the projection optics of the individual groups are arranged alternately.
Preferably, it is provided that the projection optics are each arranged in blocks, each block each containing a projection optics of each group, and wherein preferably within the blocks of projection optics, the projection optics each have an identical sequence with respect to their group.
In particular, if identical optics are used for each group of projection optics, this can bring about logistical and / or production-related advantages.
In one embodiment it can be provided that some projection optics, in particular all projection optics, comprise a reflector or are formed by a reflector.
In this context, it can be advantageously provided that - in the case of a light source for each reflector, this light source is located in a focal point of the reflector, or - in the case of two or more light sources for each reflector o a light source is disposed in a focal point of the reflector and the at least one further light source is arranged outside this focal point, or the two or more light sources are arranged symmetrically, in particular symmetrically with respect to their light emission surfaces, about a focal point of the reflector.
In an alternative embodiment it can be provided that some projection optics, in particular all projection optics, each consist of a light-guiding optical body, e.g. from TIR (total internal reflectionj optics, which light-guiding optical body at least one Lichteinkoppelbereich for coupling light from at least one light source and at least one light exit surface for coupling the coupled light in the form of a light segment are formed, or comprise such a light-conducting optical body.
A TIR optic is a light-guiding optical body, which generally consists of a light coupling surface or a light coupling region, a light coupling-out surface or a light coupling-out region, preferably following the light-emitting surface
Lichteinkoppelbereich a collimator is provided which aligns the coupled light, for example, the light rays directed in parallel, and a reflection region, which receives the light from the collimator and radiates onto the light output surface. The deflection and reflection takes place by means of total internal reflection (TIR).
However, mixed forms may also be provided in which e.g. a group of projection optics for a first illumination function consists of light-conducting optics and another group of projection optics for a second illumination function consists of reflectors.
It may be advantageous if all projection optics or all projection optics which contribute to a defined illumination function are constructed identically.
In addition, it can be provided that - all the light sources are arranged on a common printed circuit board, or - all light sources, which contribute to a defined lighting function, are each arranged on a common circuit board, or - all light sources of a projection optics are each arranged on a common circuit board.
The projection optics are preferably arranged rotated relative to one another, with either the light source (s) with the associated projection optics being twisted, or the projection optics with respect to the printed circuit board on which the associated light source (s) are arranged is (are) arranged, twisted.
It is advantageously provided that light sources for generating an illumination function have white light or colored, e.g. can emit red light. These lighting functions are lighting functions such as lighting. a cornering light, in particular, a cornering-light ground-projection function, in particular an auxiliary-cornering-ground projection function, for which white light is usually used. However, it may also be a taillight floor projection function, in particular a reversing light floor projection function or additional reversing light floor projection function, with which in addition to a reversing light still in a floor projection, the retraction of a motor vehicle can be displayed, or a brake light floor projection function or additional brake light
Floor projection function, with which the braking of a motor vehicle can be additionally displayed in a floor projection. Red light is preferably used for these taillight floor projections.
Once again, the floor projection function fulfills the legal requirements, while the additional floor projection function does not meet the legal requirements for the respective lighting function.
It may also be provided that light sources for generating a signaling function include colored light, e.g. orange or yellow light can emit. In particular, this is e.g. for an (additional) flashing light ground projection function too.
White and orange or yellow light sources may also be provided, e.g. two or more lighting functions, e.g. an (additional) flashing light ground projection function and a cornering light ground projection function, in particular an additional cornering light
Floor projection function to be able to realize together with a lighting device.
Signaling functions, in particular an (additional) flashing light ground projection function, can be realized with lighting devices which are installed in a front and / or rear area of the motor vehicle.
For example, it can be provided that all light segments of an illumination function in a screen projection in the horizontal direction have approximately the same extent, preferably identical extent.
It can be provided that all light segments of an illumination function in a screen projection in the vertical direction have approximately the same extent, preferably identical extent.
For example, all light segments of an illumination function in a screen projection in the vertical direction are at substantially the same height.
It can be provided that different light segments of an illumination function in a screen projection have different positions in the horizontal direction, wherein preferably in a common screen projection adjacent to each other light segments partially overlap, in particular in the horizontal direction.
For example, when activating a single illumination function comprising m light segments with m> 2, the illumination device generates a first light segment, which first light segment in the screen projection the least horizontal distance of all light segments from the vertical axis through the O point (= intersection H-V axis), and then, in turn, activates the second, m-th light segment.
It can be provided that, when activating a light segment of an illumination function, the previously activated light segments of this illumination function remain activated, or that the previously activated light segments are deactivated before activating or simultaneously activating a light segment of an illumination function.
It may also be envisioned that upon activating a combination illumination function comprising two different illumination functions, each illumination function comprises p light segments each, with p> 2, and wherein the qth light segment of the first illumination function illuminates substantially the same area in a floor projection the q-th light segments of the second illumination function, and wherein the light segments of the first illumination function are generated with a first color, and the light segments of the second illumination function with a second color, wherein the first differs from the second color, p - 1 light segments of the first illumination function are activated, and the missing light segment is generated by the second illumination function, and wherein, after a definable or defined time, one of the p - 1 activated light segments of the first illumination function and the light segment of the second illumination function deak be activated, the previously inactive light segment of the first illumination function is activated, and that light segment of the second illumination function is activated, which corresponds to the currently deactivated light segment of the first illumination function.
In particular, it may be provided in this connection that, when activating the combination illumination function, first the first light segment of the second illumination function and correspondingly the other light segments of the first illumination function are generated, and subsequently the second, third, .., p te light segment of the second lighting function and accordingly the p - 1 light segments of the first lighting function are activated.
The first illumination function is e.g. a cornering-light ground projection function or an additional cornering-ground projection function generated with white light, and in the second illumination function a signaling function, in particular a flashing light ground projection function or an additional flashing light ground projection function generated with yellow or orange light ,
It can be provided that after a passage of the activation of the light segments, all light segments are deactivated and, if appropriate, one or more further passes take place.
For example, one pass of the activation of the light segments is about 200 ms.
It can be provided that between two passes of the activation of the light segments is a period of about 200 ms.
The activation of a lighting function or a combination lighting function, for example, is done manually, for example, by the driver of the motor vehicle actuating an actuator, e.g. a turn signal lever, operated, or automatically
A lighting device according to the invention is designed for example as a motor vehicle headlight, which is usually installed in front in a motor vehicle, or as a motor vehicle tail lamp.
It may also be that a motor vehicle headlight or a motor vehicle tail light has one or more lighting devices according to the invention, in particular together with other lighting devices.
The invention also relates to a motor vehicle with at least one lighting device according to the invention and / or with at least one motor vehicle headlight according to the invention and / or with at least one inventive motor vehicle tail light.
A motor vehicle may have one or preferably a plurality of lighting device according to the invention, depending on the illumination functions to be generated, these may be arranged in the front region or in the rear region, but also laterally on the vehicle. Of course, different lighting devices can be arranged on the motor vehicle.
In the following the invention is discussed in more detail with reference to the drawing. In this shows
1 shows by way of example a motor vehicle in a front view,
2 shows the motor vehicle of Figure 1 in a view from above,
Fig. 3 shows a first lighting device according to the invention for generating a
Lighting function
Fig. 4 shows a second lighting device according to the invention for generating a
Lighting function
5 shows a first lighting device according to the invention for producing two lighting functions,
6 shows a third illumination device according to the invention for generating a
Lighting function
7 shows a second illumination device according to the invention for generating two illumination functions,
8 shows the lighting device from FIG. 5 in a perspective view from the front,
Fig. 9 - Fig. 13 with a lighting device according to the invention can be generated
Light segments in a screen projection,
FIG. 14 is a superposition of the light segments shown in FIGS. 9-13. FIG.
FIGS. 15-19 illustrate an illumination function based on the light segments of FIGS
FIGS. 9-13 in a floor projection,
FIGS. 20 to 24 further light segments which can be generated with a lighting device according to the invention in a screen projection,
FIGS. 25-29 show a successive superposition of the light segments shown in FIGS. 20-24 in a screen projection;
FIGS. 30-34 show a lighting function based on the light segments from FIGS. 20-24 in a floor projection;
35-39 show an illumination function based on an overlay of "cursor elements" as shown in FIGS. 25-29 in a floor projection,
FIGS. 40-44 show a further illumination function in a ground projection, based on the light segments from FIGS. 20-24, and FIG
FIGS. 45-49 show the superposition of two illumination functions based on light segments according to FIGS. 20-24.
The directions used in the following relate in each case to the installed state of the lighting device in a motor vehicle or in a motor vehicle headlight, which in turn is installed in a motor vehicle.
FIG. 1 and FIG. 2 roughly schematically show a motor vehicle 1000 in a front view and in a view from above, respectively. The motor vehicle 1000 shown here has a left and a right headlight 1100 and a left and a right lighting device 400 according to the invention. In this simplistic illustration, main headlights 1100 are used to generate main light distributions such as dipped and main beam, as well as signaling function such as flashing light (direction indicator), while the lighting device 400 according to the invention is used exclusively for the realization of one or more lighting functions within the scope of the invention. Real, however, a lighting device according to the invention may also be integrated in a main headlight, or together with one or more others
Lighting device, e.g. with a direction indicator, to form a separate module. In this regard, the invention is not limited.
Figures 3-6 show different embodiments of lighting device according to the invention 401,402,403,404, in which the projection optics used from light-conducting optical bodies, preferably so-called TIR optics, in which the coupled light propagates by means of total reflection, are formed.
FIG. 3 shows a lighting device 401 with five projection optics 1-5, wherein each projection optical system is assigned exactly one light source 1 '- 5'. The projection optics 1-5 are designed as light-conducting bodies, in particular TIR optics. The light sources 1'-5 'can each couple light into the projection optics via a light coupling-in region 101-105, and this light can emerge again via light coupling-out regions 201-205. The projection optics 1-5, in particular the light extraction regions 201-205 (this is generally, not limited to these or other embodiments shown), are designed and arranged such that the emerging light in the form of a light segment on a floor, for example on a roadway, on which the vehicle is safely located with the lighting device 401 is mapped.
The light sources 1-5 can be driven independently of each other, i. be turned on and off, and preferably also be dimmed. This allows any combination of light segments to be switched.
Each light source 1-5 consists of at least one light emitting diode LED, but may also comprise two or more LED's. In the latter case, it may be advantageous if the LEDs of a light source can also be switched independently of each other and preferably dimmed, but it can also be provided that all LEDs of a light source can only be switched together and preferably dimmed.
In this embodiment, the light sources 1-5 sit on a common LED circuit board 411, and the projection optics 1-5 are arranged to the light sources 1 '- 5' twisted. In the example shown, the light outcoupling surfaces 201-205 are aligned twisted relative to each other.
Furthermore, the light input surfaces 101, 102, 104, 105 of the outer projection optics 1, 2, 4, 5 are asymmetrical and only the light coupling surface 103 of the central projection optics 3 is symmetrical.
With a TIR reflector or TIR optics, the structure is generally more efficient than without TIR optics. As a rule, wider lenses are generally more efficient. The embodiment described may be favorable in order to avoid a collision with the LED print, in particular during a rotation of the optical body with respect to the LED.
FIG. 4 shows a lighting device 402, which has a similar construction to that of FIG. 3, the statements made in FIG. 3 largely apply here as well and the constructive relationships are only roughly discussed, and only the differences are described in more detail.
The illumination device 402 has five projection optics 6 - 10 in the form of light-conducting optical bodies, in particular TIR optics, with light-coupling areas 106 -110 and light-out areas 206 - 210. Each projection optics is exactly one
Light source 6 '- 10' is assigned. The light sources 6 '- 10', which in turn each have one or more LEDs are arranged on a common LED circuit board 412 and the projection optics 6-10 are arranged as shown in Figure 3 twisted to the light sources.
In contrast to the embodiment from FIG. 3, the projection optics 6 -10 in the illumination device 402 from FIG. 4 have symmetrical light-coupling regions 106-110, and the light-conducting optical bodies are narrower than those from FIG. 3. Correspondingly, sharp boundary edges of the individual light segments can be achieved so they can connect more closely together and overlap less.
FIG. 5 (see also FIG. 8) shows an embodiment with two groups G1, G2 of projection optics 11-15 (G1), 11a-15a (G2). The projection optics 11-15, 11a-15a are in turn designed as light-conducting bodies, in particular TIR optics, with light-coupling regions 111-115, purple -115a and light-outcoupling regions 211-215, 211a-215a; each projection optical system is exactly one light source 11'-15 ', lla' - 15a 'assigned. With regard to controllability and preferably dimmability as well as concrete construction, the statements made above apply to the light sources, these also apply to all other exemplary embodiments.
All light sources sit on a common LED circuit board 413. However, it would also be conceivable that a separate LED circuit board is provided for each group of light sources or that each light source sits on its own LED circuit board.
In this example, all Lichtauskoppelbereiche are symmetrical, and the Lichtauskoppelbereich are arranged rotated away from each other. However, it would also be conceivable for the light outcoupling areas to be arranged rotated relative to one another, and it can also be provided that one, several or all of the light coupling areas are asymmetrical.
With each group Gl, G2 of projection optics and light sources, a separate lighting function can be realized. For example, with one group one projection for cornering light can be realized, and with the other group a flash projection can be realized, i. either an independent lawful flashing light or in addition to the known flashing light, a projection of corresponding, the flashing additionally optically highlighting light segments on the Lahrbahn. Specifically, group G1 thereby generates the cornering-light ground projection function or auxiliary cornering-ground projection function, group G2 generates the turn signal floor projection function or auxiliary turn signal floor projection function.
General, i. not limited to the specific embodiments, depending on the desired lighting function, the light sources have a corresponding size, e.g. white or orange or yellow, wherein for a lighting function in the sense of a light function such. Bending white light sources are used while for a lighting function in terms of a signaling function, such as a flashing light projection; orange or yellow light sources are used.
In the example of Figure 5, the light sources 11 '- 15', for example, each one or more white LEDs and the light sources lla '- 15a' each of one or more orange or yellow LEDs and are formed and arranged such that the exiting light in the form of a light segment on a ground, for example on a roadway on which the vehicle is safely located with the lighting device 401 is mapped.
The light sources can be driven independently, i. be turned on and off, and preferably also be dimmed. This allows any combination of light segments to be switched.
Each light source consists of at least one LED, but may also comprise two or more LED's. In the latter case, it may be advantageous if the LEDs of a light source can also be switched independently of each other and preferably dimmed, but it can also be provided that all LEDs of a light source can only be switched together and preferably dimmed.
Also in the embodiment according to FIG. 5, all the light sources are seated on a common LED printed circuit board 413, and the projection optics are arranged rotated relative to the light sources. In the example shown, the light outcoupling surfaces 211-215, 211a-215a are aligned twisted relative to each other.
Furthermore, the light coupling surfaces are designed to be symmetrical by way of example.
FIG. 6 shows yet another example of a lighting device 404 with six projection optics 16-21, with light coupling areas 116-121 and
Lichtauskoppelbereichen 216 - 221, as well as the projection optics associated light sources 16 '- 21'. With this embodiment, it should be shown that more or less than five projection optics can be used, also sits here each light source 16 '- 21' on its own LED circuit board 414, and in the case of identical projection optics, the projection optics can each to their light source can be aligned identical, and the assemblies of printed circuit board, light source and projection optics can be rotated to each other, while, for example, in the illumination device 402 of Figure 4, where the projection optics are also constructed identically, each projection optics to the LED circuit board 412 is arranged rotated.
Instead of projection optics in the form of light-conducting bodies as described above, it is also possible to provide reflectors as projection optics which are adapted to produce the desired light segments.
In principle, it is again possible for each reflector to be assigned exactly one light source, e.g. in analogy to FIGS. 3, 4, 6, or two or more groups of reflectors each having a light source are provided, analogous to FIG. 5. All the light sources can in turn be arranged on an LED circuit board, or each light source is seated on an LED conductor interconnection wiring. Again, the statements regarding the arrangement of the reflectors with respect to the light sources apply analogously as stated above.
FIG. 7 itself shows an example in which each reflector 22-26 is assigned two light sources 22 '- 26', 22a '- 26a'. The first light sources 22 '- 26' consist of exactly one LED, which are preferably arranged in a focal point of the respective reflector. The second light sources 22a1 - 26a 'each consist of two LEDs, which is preferably arranged symmetrically to the focal point in which the first light source sits.
With such an arrangement, two different illumination functions can be realized using, in each case, one group of projection optics, which for example can also be identical, for example in the sense as already discussed with reference to FIG.
In the following figures, light distributions, i. Light segments shown in different representations, as they can be generated with lighting devices according to the invention. As already described above, each projection optics of a lighting device can emit a light beam and, depending on the representation, a distinction must be made between the projection of the light beam onto a roadway on which a vehicle is seated (assuming that the vehicle is at rest ) is located with a built-in lighting device (also referred to as "ground projection" or "roadway projection"), in which a corresponding light segment of the ground projection results, and - luminous intensity distributions of the respective light beams or superimpositions of these light beams. For the sake of simplicity, we will refer to the representation of the light segments and their superpositions in the luminous intensity distribution as "screen projection".
Since these are only different representations of the same light bundle, the same reference numerals are used in both representations.
FIGS. 9-13 show light segments LI-L5 in a screen projection, as can be produced, for example, with a lighting device from FIGS. 3, 4, 6 or a lighting device from FIG. 5 upon activation of only one group of light sources. Finally, FIG. 14 shows the five shown
Light segments LI - L5 in an overlay, where the light segments may also be dimmed here.
In the example shown, the light segments are shown, as they can be generated by a lighting device, which is arranged on the left side of the vehicle of a vehicle for right-hand traffic. Furthermore, it is assumed that, for the ground projections shown (FIGS. 15 to 19, FIGS. 30 to 34, FIGS. 35 to 39, FIGS. 40 to 44 and FIGS. 45 to 49), the orientation of the vehicle is transverse to the imaging sheet and with the vehicle front to the right Side as assumed in the vehicle top view of Figure 2 is assumed. The light distributions shown would be activated, for example, in the case in which this vehicle oriented in this way moves in the direction of travel and indicates a departure from the lane being traveled, that is to say e.g. signals that it turns to the left or, for example, changes to the left lane of the lane.
For the sake of simplicity, it will be assumed below that the illumination device 400 used is that of FIG. 3 with the projection optics 1-5 and is light sources 1 '- 5'.
In general, however, the statements and contexts made in the context of the description of the figures apply, independently of the specific embodiments, in a general context and not limited to the embodiment described.
The projection optics 1-5 are arranged and configured such that - projection optics 1 generates the light segment LI, which extends horizontally in the screen projection from about -50 ° to -20 ° and from about -35 ° to -22 ° vertically, - Projection optics 2 generates the light segment L2, which extends horizontally in the screen projection of about -55 ° to -25 ° and from about -3o ° to -20 ° vertically, - projection optics 3 generates the light segment L3, which in the Screen projection of about -60 ° to -30 ° horizontally and extending from -3o ° to -15 ° vertically, - projection optics 4 generates the light segment L4, which is in the screen projection of about -70 ° to -40 ° horizontally and extends from about -25 ° to -12 ° vertically, and - projection optics 5 generates the light segment L5, which is in the screen projection of about -75 ° to -45 ° horizontally and from about -22.5 ° to - Extends 10 ° vertically. If the mounting height of the lighting device changes, the above-mentioned angle ranges also change in the vertical direction V.
Figures 15-19 show an application scenario using light segments as shown in the screen projection in Figures 9-13, by way of a corresponding ground projection.
FIG. 15 shows the first light segment LI in the ground projection, FIGS. 16-19 show the successive switching-on of the further light segments by switching on the respective light sources of the lighting device. The light segments are correspondingly superimposed to form light distributions LI + L2 (Fig. 16), LI + L2 + L3 (Fig. 17), LI + L2 + L3 + L4 (Fig. 18), and LI + L2 + L3 + L4 + L5 (Fig. 19).
The x-axis is directed in the direction of travel, in the illustrations in the figures, the vehicle thus moves to the right, along the x-axis. The y-axis, which in the illustration on the drawing sheet is normal to the x-axis and runs vertically, is real horizontally and normal to the x-axis, so gives the lateral distance to the
Lighting device on. The plane spanned by the x-y coordinates is thus in reality a horizontal plane. The (imaginary) motor vehicle stands in the bottom projection representations in the direction of the x-axis and moves in the sheet representation from left to right, real in the direction of the x-axis, the left lighting device is located at the origin of the coordinate system. Each floor projection is a snapshot.
As can be seen in the luminous intensity distribution of the associated segment (FIG. 9), the light segment LI extends to the front and to the left. As can be seen, the light segment LI extends starting at a distance of about 0 meters (x-axis) in front of the illumination device and about 1.5 meters (y-axis) laterally adjacent to the illumination device obliquely at the appropriate angle to the front ,
With further addition of light segments in the order L2, L3, L4, L5, the previously switched-on light segments remain switched on, the light distribution formed by the superposition of the light segments increases, as can be clearly seen in FIGS. 16-19. In the superimposition of all the light segments LI-L5, as shown in FIG. 19, the resulting light distribution extends approximately 5 meters to the left and from a distance of 1.5 meters to a distance of 2.5 meters to the front.
The individual light sources can be operated fully, but it can also be provided that these, even different from each other, are operated dimmed.
In this animation scenario, e.g. Accordingly, in addition to the normal, commercially available and known flashing light, a flashing light floor projection function can be realized with the growing light distribution increasing frontward and lateral rightward in front of a vehicle.
This animated direction indicator floor projection serves as an additional function to the usual turn signal, in order to draw attention also to road users who do not directly look at the turn signal (can) or do not pay close attention to the vehicle, a change of the direction of travel (eg when turning or when changing lanes) , This creates an additional security gain.
The individual segments are thus represented in the screen projection in FIGS. 9-13. FIG. 14 then shows the final superimposition with dimming of the individual segments. Figures 15-19 then show the animation scenario as described above in which the segments are switched individually with proper dimming. In this scenario, therefore, the position of the individual light segments LI - L5 is varied, and it can also be provided that the light sources are operated dimmed, that is, the amount of light emitted is varied.
As soon as all the light segments have been active for a certain period of time, all are switched off together, and if the corresponding light function is still activated, the scenario starts again as described above.
It can be provided that, in particular when the lighting device with the "main turn signal" is activated together (for example as a "wiping turn signal"), the entire animation is completed after 200 ms and then optionally starts again from the beginning.
Figures 20-24 show another possible scenario as can be realized with lighting devices described above as already described in connection with Figures 9-19.
The projection optics of the illumination device used are arranged and configured in such a way that, for example, - projection optics 1 generates the light segment M1, which in the screen projection ranges from about -35 ° to -20 ° horizontally and from about -2.5 ° to -22, Extends vertically 5 °, - projection optics 2 generates the light segment M2, which extends in the screen projection of about -45 ° to -30 ° horizontally and from about -2.5 ° to -22.5 ° vertically, - projection optics. 3 generates the light segment M3, which extends in the screen projection of about -55 ° to -40 ° horizontally and from about -2.5 ° to -22.5 ° vertically, - projection optics 4 generates the light segment M4, which is located in the screen projection extends from about -65 ° to -50 ° horizontally and from about -2.5 ° to -22.5 ° vertically, and - projection optics 5 generates the light segment M5, which is in the screen projection of about -75 ° to -60 ° horizontally and from about -2.5 ° to -22.5 ° vertically.
Again, it should be noted that the vertical angular extent can be changed over an altered mounting height and the above information, as in the other examples, according to example to see.
As can be seen, in the vertical direction the light segments do not change their position and extent and move only in the horizontal direction.
FIGS. 25-29 furthermore show the superposition of the individual light segments from FIGS. 20-24 in a superimposition, wherein, starting in FIG. 25, where only the light segments M1 is activated, the further light segments M2, M3, M4 and M5 are successively added to the light segments or the active light segment or light segments are switched thereto until all five light segments M1 to M5 are activated in FIG. Again, the corresponding light sources can also be operated dimmed.
Figures 30-34 show an animation for generating a lighting function in the roadway projection.
FIG. 30 shows the light segment M1 in the ground projection. The light segment Ml extends in a lobe shape at an angle of about 25 ° (to the x-axis) starting immediately before the lighting device (starting about 0 meters in front and 0.5 meters left of the lighting device) to about 2 meters to the left and up to about 2 meters forward.
In this animation scenario according to Figures 30-34, the "pointer", ie the area illuminated by individual light segments or superimpositions of light segments, begins in front of the motor vehicle and becomes increasingly larger, while at the same time the pointer "wipes out".
In this example, the individual light distributions in FIGS. 30-34 are each a separate light segment (and not a superposition of light segments), the corresponding luminous intensity distribution for this can be as in FIGS. 20-24.
In this animation ("growing pointer"), not only does the angular range change in the horizontal direction, but the range is also increased in a targeted manner.
This can be achieved, for example, by shifting the maximum in the light intensity distribution closer to the H-H line or e.g. be accomplished by different mounting heights of the projection optics of the lighting device.
The illumination function described above is again an animation scenario for an additional turn signal ground projection in addition to a main turn signal.
FIGS. 35-39 show a lighting function ("rising fan") based on an overlay of "cursor elements" as shown in FIGS. 25-29 in a floor projection
FIGS. 40-44 also show an animation scenario "wiping pointer", implemented by successively switching individual light segments, the luminous intensity distribution again corresponds to that of FIGS. 20-24.
Finally, Figures 45-49 show an example of a pointer wiping through the cornering light: a combination of a yellow "wiping pointer" and segmented cornering light (white), that segment of cornering light which would overlap with the yellow / orange pointer of the flashing light; will be switched off.
The luminous intensity distributions M1, M2, M3, M4, M5 for the wiping pointer (in yellow or orange, shown as a dashed area) in this example correspond to those of FIGS. 20-24, the overlays M2 / + M3 / + M4 / M5 + /; M1, M3 / + M4 / + M5 /; Ml / + M2 /, M4 '+ M5'; Ml / + M2 / + M3 /, M5 / Ml / + M2 / + M3 / + M4 / (four each in this example) also results from light segments which in the screen projection are those from FIGS. 20-24 correspond, whereby here white light sources are used.
It can be used to realize such a lighting function e.g. a lighting device can be used with five projection optics, each projection optics is associated with a white and a yellow or orange light source, which are switched accordingly.

权利要求:
Claims (38)
[1]
claims
An illumination device (401, 402, 404, 404, 405), in particular a ground-projection illumination device, for a motor vehicle (1000) for generating at least one illumination function, in particular a ground-projection illumination function, wherein the illumination device (401, 402, 404, 405) comprises: - two or more projection optics (1-5; - 10; 11 - 15, 11a - 15a; 16 - 21; 22-26); Light sources (1 '- 5', 6 '- 10', 11 '- 15', 11a '- 15a', 16 '- 21', 22 '- 26', 22a '- 26a'), each projection optics ( 1 - 5, 6 - 10, 11 - 15, 11a - 15a, 16 - 21, 22 - 26) at least one light source (1 '- 5', 6 '- 10', 11 '- 15', 11a '- 15a) '; 16' - 21 '; 22' - 26 '; 22a' - 26a '), each light source comprising one or more light-emitting diodes, and each light source associated with a projection optics contributing to a defined illumination function; wherein the projection optics (1-5; 6-10; 11-15, 11a-15a; 16-21; 22-26) are arranged to emit light of their respective associated light source or light sources (1 '- 5'; 6 '- 10 ', 11' - 15 ', 11a' - 15a ', 16' - 21 ', 22' - 26 ', 22a' - 26a ') in the form of light segments (L1-L5, M1-M5) in a floor projection, ie e.g. projecting onto a track, and wherein the light segments (LI - L5, Ml - M5) contributing to a respective defined illumination function are separated from the corresponding projection optics (1 - 5; 6 - 10; 11 - 15, 11a - 15a; 16 - 21 22-26) are projected in the ground projection in such a way that light segments (LI-L5, Ml-M5) which can be generated by adjacent projection optics lie directly next to one another in this ground projection and / or in a screen projection, and wherein each light source (1 '- 5') 6 '- 10', 11 '- 15', 11a '- 15a', 16 '- 21', 22 '- 26', 22a '- 26a') is controllable independently of the other light sources.
[2]
2. Lighting device according to claim 1, characterized in that each light-emitting diode of a light source (1 '- 5', 6 '- 10', 11 '- 15', 11a '- 15a', 16 '- 21', 22 '- 26 '22a' -26a ') can be controlled independently of the other light-emitting diodes of the light source.
[3]
3. Lighting device according to claim 1 or 2, characterized in that each projection optics n light sources (22 '- 26', 22a '- 26a') are assigned, with n = 1, 2, 3,4, ...., wherein each of a projection optics to ordered light source contributes to a defined lighting function.
[4]
4. Lighting device according to one of claims 1 to 3, characterized in that each projection optics (1-5; 6-10; 16-21) has exactly one light source (1 '- 5'; 6 '- 10'; 16 '- 21) ') and that all projection optics (1-5, 6-10, 16-21) produce light segments of a single illumination function.
[5]
5. Lighting device according to one of claims 1 to 3, characterized in that each projection optics (11 - 15; 11a - 15a) is associated with exactly one light source (11 '-15', 11a '- 15a'), and two or more groups (G1, G2) of projection optics (11-15, 11a-15a), each group (G1, G2) being provided for producing a defined illumination function.
[6]
6. Lighting device according to claim 5, characterized in that the projection optics (11-15, 11a-15a) of the individual groups (G1, G2) are arranged alternately.
[7]
7. Lighting device according to claim 5 or 6, characterized in that the projection optics (11-15, 11a-15a) are each arranged in blocks, each block each having a projection optical unit (11, 11a, 12, 12a, 13, 13a; 14a, 15, 15a) of each group (G1, G2), and preferably within the blocks of projection optics (11, 11a, 12, 12a, 13, 13a, 14, 14a, 15, 15a) the projection optics each have an identical one Have order with respect to their group.
[8]
8. Lighting device according to one of claims 1 to 7, characterized in that projection optics, in particular all projection optics (22 - 26), comprise a reflector or are formed from a reflector.
[9]
9. Lighting device according to claim 8, characterized in that - in the case of a light source for each reflector, this light source is located in a focal point of the reflector, or - in the case of two or more light sources (22 ', 22a', 23 ', 23a' , 24 ', 24a', 25 ', 25a', 26 ', 26a') for each reflector (22-26) o a light source (22 ', 23', 24 ', 25', 26 ') at a focal point of the Reflector (22-25) is arranged and the at least one further light source (22a ', 23a', 24a ', 25a', 26a ') is arranged outside this focal point, or o the two or more light sources symmetrical, in particular symmetrical with respect to their light emission surfaces are arranged around a focal point of the reflector.
[10]
10. Lighting device according to one of claims 1 to 9, characterized in that projection optics, in particular all projection optics (1-5; 6-10; 11-15; 11a-15a; 16-21), each composed of a light-conducting optical bodies, e.g. from TIR optics, which light-guiding optical body at least one Lichteinkoppelbereich (101 -105; 106-110; 111-115; lila - 115a; 116-121) for coupling light from at least one light source (1 '- 5', 6 '-. 10 ', 11' - 15 '; 11a' - 15a '; 16' - 21 ') and at least one light exit surface (201-205; 206-210; 211-215; 211a-215a; 216-221) for decoupling the coupled-in Light in the form of a light segment (LI - L5; Ml - M5), are formed or comprise such a light-guiding optical body.
[11]
11. Lighting device according to one of claims 1 to 10, characterized in that all the projection optics or all projection optics, which contribute to a defined lighting function, are built identically.
[12]
12. Lighting device according to one of claims 1 to 11, characterized in that - all light sources (1 '- 5', 6 '- 10', 11 '- 15', 11a '- 15a') on a common printed circuit board (411; 412; 413) are arranged, or - all the light sources which contribute to a defined illumination function are each arranged on a common printed circuit board, or - all light sources (16 '- 21') of a projection optical system (414) are each arranged on a common printed circuit board ,
[13]
13. Lighting device according to one of claims 1 to 12, characterized in that light sources for generating an illumination function white light or colored, e.g. can emit red light.
[14]
14. Lighting device according to one of claims 1 to 13, characterized in that light sources for generating an illumination function, in particular a signaling function colored light, e.g. can emit orange or yellow light.
[15]
15. Lighting device according to one of claims 1 to 14, characterized in that an illumination function, a light function, preferably a cornering ground projection function, e.g. an auxiliary cornering ground projection function, or, for example, a taillight floor projection function, e.g. an auxiliary taillight floor projection function, such as a reversing light floor projection function or additional reversing light floor projection function or a stop light floor projection function, e.g. an additional brake light ground projection function.
[16]
A lighting device according to any one of claims 1 to 15, characterized in that an illumination function comprises a signaling function, preferably a flashing light ground projection function, e.g. is an additional flashing light floor projection function.
[17]
17. Lighting device according to one of claims 1 to 16, characterized in that the light segments (LI - L5, Ml - M5) are formed in a lobe projection in a roadway projection, wherein the light segments widening away from the lighting device.
[18]
18. Lighting device according to one of claims 1 to 17, characterized in that the light segments - before the lighting device to a maximum of 10 meters or up to 15 meters or to a maximum of 20 meters or to a maximum of 25 meters and / or - side, left or right from the lighting device, to a maximum of 10 meters or to a maximum of 15 meters or to a maximum of 20 meters or to a maximum of 25 meters.
[19]
19. Lighting device according to one of claims 1 to 18, characterized in that the light segments start at a distance of 0 meters or 0.5 meters or at a distance of 1 meter in front of the lighting device.
[20]
20. Lighting device according to one of claims 1 to 19, characterized in that the light segments in the roadway projection in an angular range of about 20 ° or -20 ° to the vehicle longitudinal axis begin and preferably in an angular range of 20 ° to and including 90 ° or -20 ° up to and including -90 ° to the vehicle's longitudinal axis.
[21]
21. Lighting device according to one of claims 1 to 20, characterized in that all the light segments of an illumination function in a screen projection in the horizontal direction in approximately the same extent, preferably identical extent.
[22]
22. Lighting device according to one of claims 1 to 21, characterized in that all the light segments of an illumination function in a screen projection in the vertical direction in approximately the same extent, preferably identical extent.
[23]
23. Lighting device according to one of claims 1 to 22, characterized in that all the light segments of an illumination function in a screen projection in the vertical direction are substantially at the same height.
[24]
24. Lighting device according to one of claims 1 to 23, characterized in that different light segments of an illumination function in a screen projection have different positions in the horizontal direction, preferably in a common screen projection adjacent to each other light segments partially overlap, in particular in the horizontal direction.
[25]
25. Lighting device according to one of claims 1 to 24, characterized in that when activating a single lighting function, which includes m light segments, with m> 2, the lighting device generates a first light segment, which first light segment in the screen projection the smallest horizontal distance of all Having light segments from the vertical axis through the O-point (= intersection HV axis), and then, in turn, the second, ...., m-th light segment is activated.
[26]
26. Lighting device according to claim 25, characterized in that when activating a light segment of a lighting function, the previously already activated light segments of this lighting function remain activated.
[27]
27. Lighting device according to claim 25, characterized in that before activating or simultaneously with the activation of a light segment of a lighting function, the previously activated light segments is deactivated.
[28]
28. Lighting device according to one of claims 1 to 24, characterized in that when activating a combination illumination function, which comprises two different illumination functions, each illumination function each p segments of light, with p> 2, and wherein the q-th light segment of the first illumination function in a ground projection substantially illuminates the same area as the q-th light segments of the second illumination function, and wherein the light segments of the first illumination function are generated with a first color, and the light segments of the second illumination function with a second color, the first of the second color, p - 1 light segments (M2 ', M3', M4 ', M5') of the first illumination function are activated, and the missing light segment (Ml) is generated by the second illumination function, and wherein after a definable or defined time of of the p - 1 activated light segments of the e The first illumination function and the light segment of the second illumination function are deactivated, the previously inactive light segment of the first illumination function is activated, and that light segment of the second illumination function is activated which corresponds to the currently deactivated light segment of the first illumination function.
[29]
29. Lighting device according to claim 28, characterized in that when activating the combination illumination function, first the first light segment of the second illumination function and correspondingly the p - 1 other light segments of the first illumination function are generated, and then sequentially the second, third, .., - p-th light segment of the second illumination function and, accordingly, the p-1 light segments of the first illumination function are activated.
[30]
30. Lighting device according to one of claims 25 to 29, characterized in that after a passage of the activation of the light segments, all light segments are deactivated and optionally one or more further passes take place.
[31]
31. Lighting device according to one of claims 25 to 30, characterized in that a passage of the activation of the light segments is about 200 ms.
[32]
32. Lighting device according to one of claims 25 to 31, characterized in that between two passes of the activation of the light segments is a period of about 200 ms.
[33]
33. Lighting device according to one of claims 1 to 32, which is designed as a motor vehicle headlight or as a motor vehicle tail lamp.
[34]
34. Lighting device according to one of claims 1 to 33, characterized in that the light segments in the ground projection and / or screen projection are so close to each other that they immediately adjacent to each other or partially overlap.
[35]
35. Lighting device according to one of claims 1 to 34, characterized in that the light segments in the ground projection and / or screen projection are so close to each other that they are spaced apart.
[36]
36. A motor vehicle headlight with one or more lighting devices according to one of claims 1 to 35.
[37]
37. Motor vehicle tail lamp with one or more lighting devices according to one of claims 1 to 35.
[38]
38. Motor vehicle with at least one lighting device according to one of claims 1 to 35 and / or with at least one motor vehicle headlight according to claim 36 and / or with at least one motor vehicle tail light according to claim 37.

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同族专利:

公开号 | 公开日

EP3222906A1|2017-09-27|

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AT518343B1|2017-12-15|

EP3222906B1|2022-03-09|

CN107228320B|2020-08-18|

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法律状态:
2021-11-15| MM01| Lapse because of not paying annual fees|Effective date: 20210323 |

优先权:

申请号 | 申请日 | 专利标题

ATA50238/2016A|AT518343B1|2016-03-23|2016-03-23|Lighting device for a motor vehicle|ATA50238/2016A| AT518343B1|2016-03-23|2016-03-23|Lighting device for a motor vehicle|

EP17162306.9A| EP3222906B1|2016-03-23|2017-03-22|Lighting device for a motor vehicle|

CN201710177459.2A| CN107228320B|2016-03-23|2017-03-23|Lighting device for a motor vehicle|

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