Automotive headlight lighting device

Abstract

To provide an improved lighting device of an automotive head lamp.SOLUTION: A lighting device (10) of an automotive head lamp is configured to form an optical distribution having a cut-off line. A shutter device (100) is configured to switch between: an aligned position of a first and second shutter edges (110b, 120b) at which a common shutter edge (150) contributes to a generation of a linear cut-off line; and a non-aligned position at which the first and second shutter edges (110b, 120b) are inclined to each other so as to contribute to a generation of a cut-off line at which the common shutter edge (150) is shifted from the liner cut-off line. A switching between the aligned position and the non-aligned position is executed by a rotation of a first and / or second shutter bodies (110, 120) about a common rotational axis by a rotation device.SELECTED DRAWING: Figure 1A

Description

Technical Field

[0005] ,

[0001] This application claims the benefit of priority under the Paris Convention for European Patent Application No. 23212201.0 filed on November 27, 2023, and the entire contents of said application are incorporated herein by reference and are hereby described.

[0002] The present invention relates to a lighting device for automotive headlights, particularly for single-track automotive headlights, and especially for motorcycle headlights, The lighting device is configured to form a light distribution having a cut-off line, The lighting device · at least one light source configured to emit light in a main direction for forming the light distribution, · a shutter device arranged downstream of the at least one light source along the main direction, provided that the shutter device is configured to generate the cut-off line of the light distribution, · a projection lens for projecting the generated light distribution of the at least one light source in front of the lighting device in cooperation with the shutter device, provided that the projection lens includes an optical axis, · a holder configured to hold the shutter device and the projection lens, provided that preferably the at least one light source is attached to the holder, relates to a lighting device including.

[0003] The present invention further relates to a stabilized lighting device for emitting a stabilized light distribution.

[0004] The present invention further relates to a motorcycle headlight.

Background Art

[0005] In the case of single-track vehicles such as motorcycles, problems arise when driving around curves due to the vehicle's lean angle. Generally, headlights that are fixedly attached to the motorcycle or its (front) forks can no longer adequately illuminate the road ahead of the motorcycle.

[0006] It should be noted that the present invention is fundamentally suitable for any vehicle that experiences leaning during cornering.

[0007] The light distribution, particularly the low-beam light distribution setup, is regulated by law and measured for an upright vehicle. Each time the vehicle turns a corner, it tilts along with the headlights or lighting system around the vehicle's longitudinal axis.

[0008] As a result, visibility on curves is reduced, and oncoming vehicles are dazzled. This significantly compromises traffic safety. [Prior art documents] [Patent Documents]

[0009] [Patent Document 1] DE 103 35 952 B4 [Patent Document 2] JP 2013 032127 A [Patent Document 3] CN 202 691 916 U [Patent Document 4] US 5 113 319 A [Patent Document 5] DE 41 02 586 C2 [Patent Document 6] US 2011 / 110113 A1 [Patent Document 7] EP 1 201 989 A2 [Overview of the project] [Problems that the invention aims to solve]

[0010] Conventional technology offers various approaches to solving this problem; for example, it is sometimes said that the entire headlight can be positioned on a motorcycle in a reasonably movable manner so that the headlight can simply rotate when the motorcycle is tilted.

[0011] This is disadvantageous because positioning the entire headlight assembly of a motorcycle is very costly, and the entire headlight assembly must rotate when turning corners. As a result, a relatively large mass must be moved, the motion is slow, and a larger structural space is required.

[0012] One object of the present invention is to provide an improved lighting device for automobile headlights. [Means for solving the problem]

[0013] From a first perspective of the present invention, for an automobile headlight or For single-track vehicle headlights or For motorcycle headlights The light A lighting device is provided. The aforementioned lighting device is configured to form a light distribution having a cutoff line. The aforementioned lighting device • At least one light source configured to emit light in the principal direction in order to form the aforementioned light distribution, A shutter device positioned downstream of the at least one light source along the principal direction, wherein the shutter device is configured to generate the cutoff line of the light distribution. A projection lens for projecting the light distribution generated by at least one light source onto the front of the illumination device in cooperation with the shutter device, wherein the projection lens includes the optical axis. A holder configured to hold the shutter device and the projection lens. 、 of include. The shutter device is · a first shutter body having a first shutter surface including a first shutter edge, and · a second shutter body having a second shutter surface including a second shutter edge and is composed of The first shutter body and the second shutter body are arranged relative to each other such that the first shutter edge and the second shutter edge together form a common shutter edge that generates the cut-off line of the light distribution, The shutter device is · the alignment positions of the first shutter edge and the second shutter edge, provided that the common shutter edge contributes to the generation of a straight cut-off line, and · the misalignment positions of the first shutter edge and the second shutter edge, provided that the first shutter edge and the second shutter edge are tilted relative to each other such that the common shutter edge contributes to the generation of a cut-off line deviated from the straight cut-off line, and is configured to transition between them, The transition between the alignment position and the misalignment position is performed by rotation of the first shutter body and / or the second shutter body around a common rotation axis by a rotating device. According to a second aspect of the present invention, a stabilization lighting device for emitting a stabilized light distribution is provided. The stabilization lighting device is, according to the present invention, especially at least one lighting device, an external control unit, and at least one roll angle sensor configured to determine a roll angle from a predetermined standard position of the lighting device around the main direction, according to the following embodiments 10 to 16 The external control unit is configured to frequently (periodically) or constantly receive the roll angle from the at least one roll angle sensor, and to control the transmission element depending on the roll angle in order to maintain a stabilized light distribution. According to a third aspect of the present invention, a motorcycle headlight is provided. The motorcycle headlights described above are, in particular, in the following forms 1 to 1, according to the present invention. 16 At least one lighting device as described in any of the above and / or, in particular, the following forms according to the present invention 17 Includes at least one stabilized lighting device as described above. [Modes for carrying out the invention]

[0014] (Mode 1) Refer to the first viewpoint of the present invention described above. (Form 2) In the lighting device described in Form 1, The first shutter body and the second shutter body are rotatable independently and relative to each other around the common axis of rotation. It is preferable. (Form 3) Form 1 or 2, in particular the lighting device described in Form 1, The first shutter body includes a first partially circular sliding surface that is complementary to the first opposing circular sliding surface of the holder. The first shutter body is fitted into the holder such that the first partially circular sliding surface and the first opposing circular sliding surface can slide relative to each other. It is preferable. (Form 4) In any of Forms 1 to 3, particularly in the lighting device described in Form 1, The second shutter body includes a second partially circular sliding surface that is complementary to the second opposing circular sliding surface of the holder. The second shutter body is fitted into the holder such that the second partial circular sliding surface and the second opposing circular sliding surface can slide relative to each other. It is preferable. (Form 5) In the lighting device described in Form 4, Each shutter body includes a set of teeth partially arranged on the first partially circular sliding surface of the first shutter body and partially arranged on the second partially circular sliding surface of the second shutter body. It is preferable. (Form 6) In any of Forms 1 to 5, particularly in the lighting device described in Form 1, The rotating device includes a transmission element, which is formed as a gear configured to mesh with the teeth of the first shutter body and / or the second shutter body in order to convert the angular motion of the transmission element into rotational motion of the first shutter body and / or the second shutter body around the common axis of rotation. and but preferable. (Form 7) In any of Forms 1 to 6, particularly in the lighting device described in Form 1, The first shutter body and the second shutter body are mechanically connectable via at least one coupling device. The coupling device includes a first fitting element and a second fitting element. The first and second fitting elements are such that, when coupled, the coupling device restricts the relative rotation of the first and second shutter bodies around the common axis of rotation. It is preferable. (Embodiment 8) In the lighting device described in Embodiment 7, The first fitting element is provided on the first shutter body or the second shutter body, and the second fitting element is provided on the second shutter body or the first shutter body. It is preferable. (Form 9) In form 7 or 8, and in particular in the lighting device described in form 7, The first fitting element is formed as a groove and the second fitting element is formed as a projection. The groove has two opposing end portions. When the projections contact the respective ends of the grooves, the relative movement of the first shutter body and the second shutter body is restricted. It is preferable. (Form 10) In any of Forms 7 to 9, particularly in the lighting device described in Form 7, The transmission element is rotatable in a range of different angles, starting from a zero position where the common shutter edge of the shutter device is linear and horizontal, when viewed with the lighting device properly installed in the vehicle. In the first angular range, the transmission element meshes with the first shutter body and the second shutter body such that both shutter bodies are moved together and aligned around the common axis of rotation. In the second angular range beginning at the end of the first angular range, the transmission element engages with the first shutter body and the second shutter body such that only the first shutter body is moved by the transmission element, resulting in a non-aligned position of the first shutter body and the second shutter body, provided that the second angular range ends where the coupling device restricts the relative rotation of the first shutter body and the second shutter body relative to each other. In the third angular range AR3, which begins at the end of the second angular range, the transmission element meshes with the first shutter body and the second shutter body such that only the first shutter body is moved by the transmission element, provided that the second shutter body is rotated by the coupling device to the same extent around the common axis of rotation. It is preferable. (Form 11) In the lighting device described in Form 8, The aforementioned first angular range is from 0° to 6°, the aforementioned second angular range is from 6° to 12°, and the aforementioned third angular range starts from 12°. It is preferable. (Form 12) In any of Forms 1 to 11, particularly in the lighting device described in Form 1, The first and second shutter surfaces are positioned at an angle of 3° to 5° from the optical axis. or It can be tilted by 4° It is preferable. (Form 13) In any of Forms 1 to 12, particularly in the lighting device described in Form 1, The aforementioned lighting device has multiple lights Source including 、 eachRegarding the light source, at least one collimator element configured to collimate light is assigned to the light source. It is preferable. (Form 14) In the lighting device described in Form 1, The at least one light source is mounted in the holder. It is preferable. (Form 15) In the lighting device described in Form 1, The principal direction is either parallel to the optical axis, or parallel to both the optical axis and the common axis of rotation. It is preferable. (Form 16) In the lighting device described in Form 13, The aforementioned multiple light sources are multiple LEDs. It is preferable. (form 17 See the second point of view of the present invention described above. (form 18 See the third point of view of the present invention described above.

[0015] To achieve the above objective, the shutter device • A first shutter body having a first shutter surface including a first shutter edge, and • Second shutter body having a second shutter surface including a second shutter edge Composed of, The first shutter body and the second shutter body are positioned relative to each other such that the first shutter edge and the second shutter edge together form a common shutter edge that generates a cutoff line for the light distribution. The shutter device • Alignment position of the first and second shutter edges, where the common shutter edge contributes to the generation of a linear cutoff line. and • The first and second shutter edges are in a non-aligned position, provided that the first and second shutter edges are tilted relative to each other so that the common shutter edge contributes to the generation of a cutoff line that is offset from a linear cutoff line. It is configured to transition between, The transition between the aligned and unaligned positions is performed by the rotation of the first and / or second shutter body around a common axis of rotation by a rotating device.

[0016] Advantageously, the first shutter body and the second shutter body can rotate independently and relative to each other around a common axis of rotation.

[0017] Advantageously, the first shutter body includes a first partial circular sliding surface complementary to the first opposing circular sliding surface of the holder, and the first shutter body is fitted into the holder such that the first partial circular sliding surface and the first opposing circular sliding surface slide relative to each other.

[0018] Advantageously, the second shutter body includes a second partial circular sliding surface complementary to the second opposing circular sliding surface of the holder, and the second shutter body is fitted into the holder such that the second partial circular sliding surface and the second opposing circular sliding surface slide relative to each other.

[0019] Advantageously, the rotating device includes a transmission element, which is formed as a gear configured to mesh with the teeth of the first and / or second shutter body in order to convert the angular motion of the transmission element into rotational motion of the first and / or second shutter body around a common axis of rotation.

[0020] Advantageously, each shutter body includes a set of teeth partially positioned on the first partially circular sliding surface of the first shutter body and partially positioned on the second partially circular sliding surface of the second shutter body.

[0021] Advantageously, the first shutter body and the second shutter body are mechanically coupled via at least one coupling device, the coupling device comprising a first mating element and a second mating element, the first mating element and the second mating element being coupled to each other such that, when coupled, the coupling device restricts the relative rotation of the first shutter body and the second shutter body around a common axis of rotation.

[0022] Advantageously, the first fitting element is provided on the first shutter body or the second shutter body, and the second fitting element is provided on the second shutter body or the first shutter body.

[0023] Advantageously, the first fitting element is formed as a groove and the second fitting element is formed as a projection, the groove having two opposing ends, and the relative motion of the first and second shutter bodies is restricted when the projections abut against the respective ends of the groove.

[0024] Advantageously, the transmission element is rotatable within a range of multiple different angles, starting from a zero position where the common shutter edge of the shutter device is straight and horizontal when viewed with the lighting device properly installed on the vehicle. In the first angular range, the transmission element meshes with the first and second shutter bodies such that both shutter bodies move together around a common axis of rotation and are in an aligned position. In the second angular range, which begins at the end of the first angular range, the transmission element engages with the first and second shutter bodies such that only the first shutter body is moved by the transmission element, resulting in the first and second shutter bodies being in a non-aligned position, and the second angular range ends where the coupling device restricts the relative rotation of the first and second shutter bodies to each other. In the third angular range, starting from the end of the second angular range, the transmission element meshes with the first and second shutter bodies such that only the first shutter body is moved by the transmission element, and the second shutter body is rotated by the same amount around a common axis of rotation by the coupling device.

[0025] Advantageously, the first angular range is from 0° to 6°, the second angular range is from 6° to 12°, and the third angular range starts at 12°.

[0026] Advantageously, the first and second shutter surfaces are tilted 3° to 5°, preferably 4° (away from) the optical axis.

[0027] Advantageously, at least one light source is mounted on the holder.

[0028] Advantageously, the lighting device includes multiple light sources, preferably multiple LEDs, and preferably, for each light source, at least one collimator element configured to collimate light is assigned to the light source.

[0029] Advantageously, the principal direction is parallel to the optical axis and preferably also parallel to the common axis of rotation.

[0030] Advantageously, the shutter device includes a reset element configured to bring the first and second shutter bodies from their maximum tilt (inclination) in the non-aligned position to the aligned position.

[0031] To the advantage of the situation, the reset element is formed as a spring.

[0032] Advantageously, the spring includes a first arm and a second arm.

[0033] Advantageously, the first shutter body includes a first reset holder configured to hold a first arm of a spring, and the second shutter body includes a second reset holder configured to hold a second arm of a spring, wherein the spring is unloaded (biased) when the shutter device is in the zero position.

[0034] Advantageously, the first and / or second shutter body includes at least one weight element configured to support each shutter body in the zero position.

[0035] The above objectives are also achieved by a stabilized lighting device for emitting a stabilized light distribution, comprising at least one lighting device according to the present invention, an external control unit, and at least one roll angle sensor configured to determine the roll angle of the lighting device from a predetermined standard position around a principal direction, wherein the external control unit is configured to frequently (periodically), preferably continuously, receive the roll angle from at least one roll angle sensor, and to control the transmission elements in a roll angle-dependent manner to maintain the stabilized light distribution.

[0036] The above objectives can also be achieved by a motorcycle headlight including at least one lighting device and / or at least one stabilized lighting device according to the present invention.

[0037] To further illustrate the present invention, exemplary and non-limiting embodiments shown in the drawings are described below. [Brief explanation of the drawing]

[0038] [Figure 1A] A perspective front view of an example of an illumination device. The illumination device includes multiple light sources, a shutter device including first and second shutter bodies, and a projection lens for generating a light distribution having a cutoff line projected in front of the illumination device. The first and second shutter bodies are moved by a rotating device. [Figure 1B] Figure 1A is a perspective rear view of the lighting device. [Figure 2A] Figure 1A is an exploded front view of the lighting device. An example of a reset element positioned between the first and second shutter bodies is shown. [Figure 2B] Figure 1B shows a disassembled rear view of the lighting device. [Figure 3](A) is a detailed view of the shutter device from above. The first and second shutter bodies each include a gear. (B) is a detailed view of the shutter device from below. Both shutter bodies are at a zero position where the common shutter edge is straight and horizontal when viewed in the aligned position or with the lighting device correctly mounted on the vehicle. At this zero position, the gears of each shutter body overlap (viewed in the axial direction). [Figure 4A] Front view of the lighting device in Figure 1. The shutter mechanism is in the zero position. [Figure 4B] Front view of the lighting device in Figures 1 and 4A. The rotating device is moved within a first angular range in which both shutter devices are moved from the zero position to a further alignment position. [Figure 5A] Front view, rear view, and diagram showing the space between the two shutter bodies with a reset element formed as a spring in the illustrated embodiment. The shutter device is in the zero position and the spring is not spring-loaded (biased). [Figure 5B] Front view, rear view, and diagram showing the space between the two shutter bodies with springs. The transmission elements are moved to a first angular range, the shutters are in the aligned position, and the springs are not spring-loaded (biased). [Figure 5C] Front view, rear view, and diagram showing the space between the two shutter bodies with springs. The transmission element is moved to the second angular range, the shutter device is in a non-aligned position, and the spring is spring-loaded (biased). [Figure 5D] Front view, rear view, and diagram showing the space between the two shutter bodies with springs. The transmission elements are moved within a third angular range, the shutters are in a non-aligned position, and the springs are spring-loaded (biased). [Figure 6A] An example of a motorcycle on a road. The motorcycle includes a stabilized lighting system that projects a light distribution with a linear and horizontal cutoff line onto the road. The motorcycle is in its standard position. [Figure 6B] An example of a motorcycle tilted at a roll angle greater than zero. The horizontal alignment of the light distribution (relative to the horizon) is maintained. [Examples]

[0039] Figure 1A shows an example of a lighting device 10 for automobile headlights, particularly for single-track automobile headlights, and especially for motorcycle headlights. The lighting device 10 is configured to form a light distribution with a cutoff line.

[0040] The lighting device 10 includes a light source 20 configured to emit light in a principal direction X to form a light distribution. The light source is preferably an LED(s), and preferably each light source 20 is assigned at least one collimator element configured to collimate the light. Furthermore, the lighting device 10 includes a shutter device 100 located downstream of the light source 20 along the principal direction X. The shutter device 100 is configured to create a cutoff line in the light distribution.

[0041] Furthermore, the lighting device 10 includes a projection lens 200 in front of the lighting device 10 (downstream side) for projecting the light distribution generated by the light source 20 in cooperation with the shutter device 100. The projection lens 200 includes the optical axis A.

[0042] Furthermore, the illumination device 10 includes a holder 300 configured to hold the shutter device 100 and the projection lens 200; that is, the light source 20 is mounted on the holder 300. The shutter device 100 consists of a first shutter body 110 having a first shutter surface 110a including a first shutter edge 110b, and a second shutter body 120 having a second shutter surface 120a including a second shutter edge 120b. Furthermore, the first shutter surface 110a and the second shutter surface 120a are inclined to be 3° to 5°, preferably 4°, away from the optical axis A.

[0043] The first shutter body 110 and the second shutter body 120 are positioned relative to each other such that the first shutter edge 110b and the second shutter edge 120b together construct a common shutter edge 150 that generates a cutoff line for the light distribution.

[0044] The shutter device 100 is configured to transition between an aligned position of the first shutter edge 110b and the second shutter edge 120b (in this case, the common shutter edge 150 contributes to the generation of a linear cutoff line) and an unaligned position of the first shutter edge 110b and the second shutter edge 120b (in this case, the first shutter edge 110b and the second shutter edge 120b are tilted relative to each other so that the common shutter edge 150 contributes to the generation of a cutoff line that is offset (deviant) from a linear cutoff line).

[0045] The transition between these positions is performed by the rotation of the first shutter body 110 and / or the second shutter body 120 around a common axis of rotation R using a rotating device 400, in which case the first shutter body 110 and the second shutter body 120 are rotatable independently and relative to each other around the common axis of rotation R. The principal direction X is parallel to the optical axis A and preferably also parallel to the common axis of rotation R.

[0046] The first shutter body 110 includes a first partial circular sliding surface 111 that is complementary to the first opposing circular sliding surface 310 of the holder 300, and the first shutter body 110 is fitted into the holder 300 so that the first partial circular sliding surface 111 and the first opposing circular sliding surface 310 can slide relative to each other. The second shutter body 120 includes a second partial circular sliding surface 121 that is complementary to the second opposing circular sliding surface 320 of the holder 300, and the second shutter body 120 is fitted into the holder 300 so that the second partial circular sliding surface 121 and the second opposing circular sliding surface 320 can slide relative to each other. These can be seen in Figures 1A and 1B.

[0047] Furthermore, the shutter device 100 includes a reset element 600 configured to bring the first shutter body 110 and the second shutter body 120 from the maximum inclination position in the non-aligned position to the aligned position. The reset element 600 is formed as a spring and is positioned between the first shutter body 110 and the second shutter body 120. Furthermore, the reset element 600 includes a first arm and a second arm, the first shutter body 110 includes a first reset holder 610 configured to hold the first arm of the spring, and the second shutter body 120 includes a second reset holder 620 configured to hold the second arm of the spring. These can be seen in Figures 2A and 2B.

[0048] As can be seen from Figures 1A and 1B, the rotating device 400 includes a transmission element 410, which is formed as a gear configured to mesh with the teeth 130 of the first shutter body 110 and / or the second shutter body 120 in order to convert the angular motion of the transmission element 410 into rotational motion of the first shutter body 110 and / or the second shutter body 120 around a common axis of rotation R. In Figures 3(A) and 3(B), the teeth 130 arranged on each shutter body 110 and 120 can be seen. Also, as can be seen from Figure 3(B), when the lighting device is properly installed on the vehicle, the shutter device 100 has a common shutter edge 150 that is in a straight and horizontal zero position, in which case the teeth 130 of the shutter bodies 110 and 120 overlap to some extent (in the axial direction). In this zero position, the transmission element 410 meshes with the teeth 130 of both shutter bodies 110 and 120, whereas when the shutter device 100 is in the zero position, the reset element 600 is not spring-loaded (biased).

[0049] Furthermore, the first shutter body 110 and the second shutter body 120 are mechanically coupled via at least one coupling device 500, the coupling device 500 comprising a first fitting element 510 and a second fitting element 520, which, when coupled, are coupled to each other such that the coupling device 500 restricts the relative rotation of the first shutter body 110 and the second shutter body 120 around a common axis of rotation R. The first fitting element 510 is provided on the second shutter body 120, and the second fitting element 520 is provided on the first shutter body 110.

[0050] The first fitting element 510 is formed as a groove and the second fitting element 520 is formed as a projection (protrusion). The groove has two opposing ends, and when the projections abut against each end of the groove, the relative movement of the first shutter body 110 and the second shutter body 120 is restricted. This can be seen best in Figures 1B and 5A to 5D.

[0051] Furthermore, the transmission element 410 is rotatable in different angular ranges AR1, AR2, and AR3, starting from a zero position where the common shutter edge 150 of the shutter device 100 is linear and horizontal when viewed with the lighting device properly installed on the vehicle. In the first angular range AR1, the transmission element 410 meshes with the first shutter body 110 and the second shutter body 120 such that both shutter bodies 110 and 120 are moved together and aligned around a common axis of rotation R.

[0052] In the second angular range AR2—which begins at the end of the first angular range AR1—the transmission element 410 engages with the shutter bodies 110 and 120 such that only the second shutter body 120 is moved by the transmission element 410, resulting in the first shutter body 110 and the second shutter body 120 being in a non-aligned position. The second angular range AR2 ends where the coupling device 500 limits the relative rotation of the first shutter body 110 and the second shutter body 120 relative to each other.

[0053] In the third angular range AR3—which begins at the end of the second angular range AR2—the transmission element 410 meshes with the shutter bodies 110 and 120 such that only the second shutter body 110 is moved by the transmission element 410, while the first shutter body 120 is rotated by the coupling device 500 to the same extent around a common axis of rotation R.

[0054] The first angular range AR1 is from 0° to 6°, the second angular range AR2 is from 6° to 12°, and the third angular range AR3 starts from 12°.

[0055] Figure 4A shows a front view of the illumination device 10 without (with the projection lens 200 removed). The shutter device 100 is in the zero position, and the angular ranges AR1, AR2, and AR3 described above are shown. In Figure 4B, the shutter device 100 is shown tilted within the first angular range AR1, or specifically at the end of the first angular range AR1, and the shutter device 100 is still in the aligned position. To obtain this position, the transmission element 410 is rotated counterclockwise, as can be seen in this front view.

[0056] Figure 5A shows a rear view, a front view, and a center view showing the spring 600 (from the bottom of the page), with the shutter device 100 in the zero position. Figure 5B shows the same figure, but the shutter device 100 is tilted in a first angular range AR1 via the transmission element 410, as already described in Figures 4A and 4B, and the spring 600 is not spring-loaded (biased). This position is achieved by rotating the transmission element 410 counterclockwise—as seen in the front view. In the zero position, the transmission element 410 meshes with the teeth 130 of both shutter bodies 110 and 120 (shown in Figures 3(A) and 3(B)) because both sets of teeth 130 overlap (axially) as can be seen from Figure 3(B), thereby allowing both shutter bodies 110 and 120 to be tilted in the same manner. Furthermore, in the first angular range AR1, spring 600 is not subjected to spring load (bias).

[0057] In Figure 5C, the transmission element 410 is further rotated counterclockwise—as seen in the front view—to rotate only the second shutter body 120. This is because the transmission element 410 engages only with the teeth 130 of the second shutter body 120 at the end of the first angular range AR1 (or the beginning of the second angular range AR2). In this way, a non-aligned position is achieved and the spring 600 is spring-loaded (biased). The second angular range AR2 ends (terminates) when the coupling device 500 limits the relative rotation of the first shutter body 110 and the second shutter body 120 relative to each other, as can be seen in Figure 5C.

[0058] In Figure 5D, the transmission element 410 is further rotated counterclockwise—as seen in the front view—and the transmission element 410 meshes with shutter bodies 110 and 120 such that only the second shutter body 110 is moved by the transmission element 410. The first shutter body 120 is rotated by the coupling device 500 to the same extent around the common axis of rotation R—and the spring 600 is still spring-loaded (biased).

[0059] In the opposite movement (action), spring 600 assists in returning shutter bodies 110 and 120 to their aligned positions.

[0060] Although the diagram only shows one direction of inclination (slope) (for motorcycles, etc.), it should be noted that the above explanation also applies to the opposite direction of inclination (slope).

[0061] Furthermore, Figures 6A and 6B show an example of a vehicle on a road, which includes a stabilized lighting device for emitting a stabilized light distribution 30, which includes the above-described lighting device, an external control unit, and at least one roll angle sensor configured to determine (determine) the roll angle α from the lighting device or the vehicle at a predetermined standard position around a main direction X. The external control unit is configured to receive the roll angle α frequently (periodically), preferably continuously, from at least one roll angle sensor, and to control the transmission element 410 in accordance with the roll angle in order to maintain the stabilized light distribution or to adjust the light distribution according to the roll angle α.

[0062] In Figure 6A, the vehicle—and therefore the lighting device 10—is in a standard position and projects a light distribution 30 with a linear and horizontal cutoff line 40 onto the road. In this standard position of the vehicle, the shutter device 100 of the lighting device 10 is in the zero position.

[0063] In Figure 6B, the motorcycle is tilted at a roll angle α greater than zero, but the horizontal alignment of the light distribution 30 is maintained, and therefore the cutoff line 40 remains a straight horizontal line.

[0064] Within the framework of the full disclosure of the present invention (including the claims and drawings), further modifications and adjustments to the embodiments are possible based on the fundamental technical concept. Furthermore, within the framework of the full disclosure of the present invention, various combinations or selections (including "non-selection") of various disclosed elements (including each element of each claim, each element of each embodiment, each element of each drawing, etc.) are possible. In other words, the present invention naturally includes the full disclosure, including the claims and drawings, and various modifications and alterations that a person skilled in the art could make in accordance with the technical concept of the present invention. In particular, with respect to the numerical ranges described herein, any numerical value or sub-range included within that range should be interpreted as being specifically described unless otherwise stated.

[0065] Furthermore, the reference numerals in the drawings included in the claims are solely for the purpose of aiding the understanding of the invention, and are not intended to limit the present invention to the embodiments and illustrated examples.

[0066] Furthermore, the full contents of each of the above-mentioned documents are incorporated into this book through reference and are included herein. [Explanation of symbols]

[0067] 10 Lighting devices 20 light source 30 Light distribution 40 Cutoff 100 Shutter device 110 First shutter body 110a First shutter surface 110b First shutter edge 111 1st part circular sliding surface 120 Second shutter body 120a Second shutter surface 120b Second shutter edge 121 Second part circular sliding surface 150 Common shutter edge 200 Projection Lens 300 holder 310 First opposing circular sliding surface 320 Second opposing circular sliding surface 400 rotation device 410 Transmission elements 500 Coupling device 510 First mating element 520 Second mating element 600 Reset element (spring) 610 First reset holder 620 Second reset holder 700 weight elements AR1 First angular range AR2 Second Angular Range AR3 Third Angular Range α Roll angle X main direction A optical axis R rotation axis

Claims

1. A lighting device for automobile headlights, or for single-track automobile headlights, or for motorcycle headlights, The lighting device (10) is configured to form a light distribution having a cutoff line, The aforementioned lighting device (10) - At least one light source (20) configured to emit light in the principal direction (X) in order to form the aforementioned light distribution, - A shutter device (100) positioned downstream of the at least one light source (20) along the main direction (X), wherein the shutter device (100) is configured to generate the cutoff line of the light distribution. - A projection lens (200) for projecting the light distribution generated by at least one light source (20) in cooperation with the shutter device (100) onto the front of the illumination device (10), wherein the projection lens (200) includes the optical axis (A). - A holder (300) configured to hold the shutter device (100) and the projection lens (200), Includes, The shutter device (100) is - A first shutter body (110) having a first shutter surface (110a) including a first shutter edge (110b), and - A second shutter body (120) having a second shutter surface (120a) including a second shutter edge (120b) It is composed of, The first shutter body (110) and the second shutter body (120) are positioned relative to each other such that the first shutter edge (110b) and the second shutter edge (120b) together form a common shutter edge (150) that generates the cutoff line of the light distribution. The shutter device (100) is - Alignment positions of the first shutter edge (110b) and the second shutter edge (120b), wherein the common shutter edge (150) contributes to the generation of a linear cutoff line. and - The non-aligned positions of the first shutter edge (110b) and the second shutter edge (120b), wherein the first shutter edge (110b) and the second shutter edge (120b) are tilted relative to each other such that the common shutter edge (150) contributes to the generation of a cutoff line that is offset from a linear cutoff line. It is configured to transition between the following: The transition between the aligned position and the unaligned position is performed by the rotation of the first shutter body (110) and / or the second shutter body (120) around a common axis of rotation (R) by a rotating device (400). Lighting device.

2. In the lighting device according to claim 1, The first shutter body (110) and the second shutter body (120) are rotatable independently and relative to each other around the common axis of rotation (R). A lighting device characterized by the following:

3. In the lighting device according to claim 1, The first shutter body (110) includes a first partially circular sliding surface (111) that is complementary to the first opposing circular sliding surface (310) of the holder (300). The first shutter body (110) is fitted into the holder (300) such that the first partially circular sliding surface (111) and the first opposing circular sliding surface (310) can slide relative to each other. A lighting device characterized by the following:

4. In the lighting device according to claim 3, The second shutter body (120) includes a second partially circular sliding surface (121) that is complementary to the second opposing circular sliding surface (320) of the holder (300). The second shutter body (120) is fitted into the holder (300) such that the second partially circular sliding surface (121) and the second opposing circular sliding surface (320) can slide relative to each other. A lighting device characterized by the following:

5. In the lighting device according to claim 4, Each shutter body (110, 120) includes a set of teeth (130) partially disposed on the first partially circular sliding surface of the first shutter body (110) and partially disposed on the second partially circular sliding surface of the second shutter body (120). A lighting device characterized by the following:

6. In the lighting device according to claim 1, The rotating device (400) includes a transmission element (410), the transmission element (410) being formed as a gear configured to mesh with the teeth (130) of the first shutter body (110) and / or the second shutter body (120) in order to convert the angular motion of the transmission element (410) into rotational motion of the first shutter body (110) and / or the second shutter body (120) around the common axis of rotation (R). A lighting device characterized by the following:

7. In the lighting device according to claim 6, The first shutter body (110) and the second shutter body (120) are mechanically connectable via at least one coupling device (500). The coupling device (500) includes a first fitting element (510) and a second fitting element (520). The first fitting element (510) and the second fitting element (520) are such that, when coupled, the coupling device (500) can couple to each other in such a way that it restricts the relative rotation of the first shutter body (110) and the second shutter body (120) around the common axis of rotation (R). A lighting device characterized by the following:

8. In the lighting device according to claim 7, The first fitting element (510) is provided on the first shutter body (120) or the second shutter body (120), and the second fitting element (520) is provided on the second shutter body (120) or the first shutter body (110). A lighting device characterized by the following:

9. In the lighting device according to claim 7, The first fitting element (510) is formed as a groove and the second fitting element (520) is formed as a projection. The groove has two opposing end portions. When the projections contact the respective ends of the grooves, the relative movement of the first shutter body (110) and the second shutter body (120) relative to each other is restricted. A lighting device characterized by the following:

10. In the lighting device according to claim 7, The transmission element (410) is rotatable in a plurality of different angular ranges (AR1, AR2, AR3) starting from a zero position where the common shutter edge (150) of the shutter device (100) is linear and horizontal, when viewed with the lighting device (10) properly installed in the vehicle. - In the first angular range (AR1), the transmission element (410) meshes with the first shutter body (110) and the second shutter body (120) such that both shutter bodies (110, 120) move together around the common axis of rotation (R) and are in an aligned position. - In the second angular range (AR2) beginning from the end of the first angular range (AR1), the transmission element (410) engages with the first shutter body (110) and the second shutter body (120) such that only the first shutter body (110) is moved by the transmission element (410), resulting in a non-aligned position of the first shutter body (110) and the second shutter body (120), provided that the second angular range (AR2) ends where the coupling device (500) restricts the relative rotation of the first shutter body (110) and the second shutter body (120) relative to each other. In the third angular range (AR3) beginning from the end of the second angular range (AR2), the transmission element (410) engages with the first shutter body (110) and the second shutter body (120) such that only the first shutter body (110) is moved by the transmission element (410), provided that the second shutter body (120) is rotated by the coupling device (500) to the same extent around the common axis of rotation (R). A lighting device characterized by the following:

11. In the lighting device according to claim 10, The first angular range (AR1) is from 0° to 6°, the second angular range (AR2) is from 6° to 12°, and the third angular range (AR3) starts from 12°. A lighting device characterized by the following:

12. In the lighting device according to claim 1, The first shutter surface (110a) and the second shutter surface (120a) are tilted 3° to 5° or 4° from the optical axis (A). A lighting device characterized by the following:

13. In the lighting device according to claim 1, The lighting device (10) includes a plurality of light sources (20). For each light source (20), at least one collimator element configured to collimate light is assigned to the light source. A lighting device characterized by the following:

14. In the lighting device according to claim 1, The at least one light source (20) is mounted on the holder (300). A lighting device characterized by the following:

15. In the lighting device according to claim 1, The principal direction (X) is either parallel to the optical axis (A), or parallel to both the optical axis (A) and the common axis of rotation (R). A lighting device characterized by the following:

16. In the lighting device according to claim 13, The aforementioned multiple light sources (20) are multiple LEDs. A lighting device characterized by the following:

17. A stabilized lighting device for emitting a stabilized light distribution, comprising at least one lighting device (10) as described in claim 10, an external control unit, and at least one roll angle sensor configured to determine a roll angle (α) of the lighting device from a predetermined standard position around the principal direction (X), The external control unit is configured to frequently or continuously receive the roll angle (α) from at least one roll angle sensor and to control the transmission element (410) in a manner dependent on the roll angle (α) in order to maintain the stabilized light distribution (30). Stabilized lighting device.

18. A motorcycle headlight comprising at least one lighting device (10) according to any one of claims 1 to 16 and / or at least one stabilized lighting device according to claim 17.

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