Automobile headlight lighting device

Abstract

A lighting device for an automobile headlight, the lighting device comprising at least one light module (20) configured to emit light along a light path in a main direction (X), a movable lower light-guide element (100) and a movable upper light-guide element (200), a movement device for moving the lower and upper light-guide elements (100, 200) between a closed position and an open position, and a frame (600). In the closed position (P1), the lower and upper light-guide elements (100, 200) are located - as viewed in the main direction (X) - in front of the at least one light module (20) and at least partially block the light path of the at least one light module (20). The lower and upper light-guide elements (100, 200) are configured to emit light in the main direction (X) when located in the closed position (P1). In the open position (P2), the lower and upper light-guide elements (100, 200) are moved away from the light path of the at least one light module while maintaining their spatial orientation, unblocking the light path of the at least one light module (20). The frame (600) is static or stationary with respect to the movement of the lower and upper light-guide elements (100, 200), and the motion mechanism is attached to the frame (600).

Description

Technical Field

[0001] The present invention relates to a lighting device for an automotive headlamp, the lighting device comprising at least one light module configured to irradiate light along an optical path in a main direction, a movable upper light guide element and a movable lower light guide element, a transition device, and a frame. The transition device moves the upper and lower light guide elements relative to each other between a closed position and an open position. In the closed position, the upper and lower light guide elements are located in front of the at least one light module as viewed in the main direction, at least partially blocking the optical path of the at least one light module, and the upper and lower light guide elements are configured to emit light in the main direction when in the closed position. In the open position, the upper and lower light guide elements are moved away from the optical path of the at least one light module while maintaining their spatial orientation, releasing the blocking of the optical path of the at least one light module. The frame is static or stationary with respect to the movement of the upper and lower light guide elements, and the transition device is attached to the frame.

[0002] The present invention also relates to an automotive headlamp comprising at least one lighting device according to the present invention.

Prior Art Documents

Patent Documents

[0003]

Patent Document 1

Patent Document 2

Patent Document 3

Summary of the Invention

Problems to be Solved by the Invention

[0004] In the prior art, lighting devices are often unstable and include a moving mechanism that requires a lot of space inside the headlights of automobiles.

[0005] The object of the present invention is to provide an improved lighting device.

Means for Solving the Problems

[0006] To achieve this object, the moving device includes a lower moving mechanism and an upper moving mechanism for moving the light guide element between a closed position and an open position. The lower moving mechanism includes a first lower moving element having at least two bearing points and a second lower moving element having at least two bearing points. The first lower moving element is pivotally connected to the frame via a fixed support point and pivotally connected to the lower light guide element via a floating support point. The floating support point has a distance to the fixed support point on the first lower moving element, and has a predetermined radius given by the distance between the floating support point and the fixed support point, and is movably arranged along a circular path around a first rotation axis defined by the fixed support point. The second lower moving element is pivotally connected to the frame via a fixed support point and pivotally connected to the lower light guide element via a floating support point. The floating support point has a distance to the fixed support point on the second lower moving element, and has a predetermined radius given by the distance between the floating support point and the fixed support point, and is movably arranged along a circular path around a second rotation axis defined by the fixed support point. The first and second rotation axes are orthogonal to the main direction, parallel to each other, and the distances between the floating support points and the fixed support points of the first and second lower moving elements are the same. Also, the circular paths of the first and second lower moving elements are spatially separated but identical such that the first and second lower moving elements have the same displacement positions. Further, the floating support points of the first and second lower moving elements are arranged and movable above their respective fixed support points when the lighting device is disposed in the vehicle. The first lower moving element is mechanically engaged with a drive device configured to move the first lower moving element, and the first and second lower moving elements are connected via a lower light guide element such that when the first lower moving element is moved by the drive device, the first and second lower moving elements can be moved by the same displacement positions around their respective fixed support points. The first and second lower moving elements can move between the first displacement position and the second displacement position, and the lower light guide element is moved between a closed position and an open position while maintaining its spatial orientation based on the same radius and the displacement positions of the first and second lower moving elements. When the first and second lower moving elements are aligned at the first displacement position, the lower light guide element is in the closed position, and when the first and second lower moving elements are aligned at the second displacement position, the lower light guide element is in the open position. The upper movement mechanism includes a first upper moving element having at least two support points and a second upper moving element having at least two support points, and moves the upper light guide element between a closed position and an open position. The first upper movement element is pivotally connected to the frame via a fixed support point, pivotally connected to the upper light guide element via a floating support point, and the floating support point has a distance to the fixed support point on the first upper movement element, and has a predetermined radius given by the distance between the floating support point and the fixed support point, and is movably arranged along a circular path around a third axis of rotation defined by the fixed support point. The second upper movement element is pivotally connected to the frame via a fixed support point, pivotally connected to the upper light guide element via a floating support point, and the floating support point has a distance to the fixed support point on the first upper movement element, and has a predetermined radius (R2) given by the distance between the floating support point and the fixed support point, and is movably arranged along a circular path around a fourth axis of rotation defined by the fixed support point. The third and fourth axes of rotation are parallel to each other, parallel to the first and second axes of rotation, and the first and second upper movement elements have the same radius, and the circular paths of the first and second upper movement elements are spatially separated, but are congruent such that the first and second upper movement elements have the same displacement position, and the floating support points of the first and second upper movement elements are arranged below and movably relative to their respective fixed support points when the lighting device is disposed in a vehicle. The first upper movement element is mechanically engaged with the second lower movement element in a first transmission connection such that rotational movement of the second lower movement element around the fixed support point thereof is converted into rotational movement in the opposite rotational direction around the fixed support point of the first upper movement element. The first and second upper movement elements are coupled via the upper light guide element such that when the first upper movement element is moved by the second lower movement element, the first and second upper movement elements can be moved around their respective fixed support points by the same displacement position. The first and second upper movement elements are movably arranged between a third displacement position and a fourth displacement position, and move the upper light guide element between a closed position and an open position while maintaining its spatial orientation based on the same radius and the displacement positions of the first and second upper movement elements. When the first and second upper movement elements are aligned at the third displacement position, the upper light guide element is located at the closed position, and when the first and second upper movement elements are aligned at the fourth displacement position, the upper light guide element is located at the open position. The lower movement mechanism includes a third lower movement element having at least two support points. The third lower movement element is pivotally connected to the frame via a fixed support point and pivotally connected to the lower light guide element via a floating support point. The floating support point has a distance to the fixed support point on the third lower movement element, and has a predetermined radius given by the distance between the floating support point and the fixed support point, and is movably arranged along a circular path around a fifth rotation axis (Y5) defined by the fixed support point. The upper movement mechanism includes a third upper movement element having at least two support points. The third upper movement element is pivotally connected to the frame via a fixed support point and pivotally connected to the upper light guide element via a floating support point. The floating support point has a distance to the fixed support point on the third upper movement element, and has a predetermined radius given by the distance between the floating support point and the fixed support point, and is movably arranged along a circular path around a sixth rotation axis defined by the fixed support point. The third upper movement element is mechanically engaged in a second transmission connection with the third lower movement element such that a rotational movement around the fixed support point of the third lower movement element is converted into a rotational movement of the third upper movement element around the fixed support point in the opposite rotational direction. The lighting device has, in a main direction, when the lighting device is arranged in a motor vehicle, two opposing side surfaces, and only one transmission connection is arranged on each of the side surfaces.

[0007] Therefore, when the lower and upper movement mechanisms move the lower and upper light guide elements from the open position to the closed position, they are made to follow a movement that is opposite to each other with respect to the main direction and that moves simultaneously. Therefore, when viewed in a side view of the lighting device, the light guide element(s) move along a circular path.

Advantages of the Invention

[0008] According to this movement device, the lighting device requires much less space in the automotive headlight, especially with respect to the transition movements of the lower and upper light guide elements, when moving from the open position to the closed position and vice versa, and has a more stable mechanism. Therefore, it offers more design options and additional lighting modules or any combination thereof.

Embodiments for Carrying Out the Invention

[0009] Advantageously, the lower and upper light guide elements are constructed as light guide elements having a longitudinal axis, and the light guide element(s) are arranged such that their longitudinal axis is orthogonal to the main direction of the lighting device.

[0010] Advantageously, the lower and upper light guide elements are configured to illuminate a daytime running light when in the closed position.

[0011] Advantageously, the lower and upper light guide elements do not emit light when in the open position.

[0012] Advantageously, the third upper and lower movement elements are constructed as gears that mechanically engage with each other to transmit the movement of the third lower movement element to the third upper movement element.

[0013] Advantageously, the second lower moving element and the first upper moving element are constructed as gears that mechanically engage with each other to transmit the movement of the second lower moving element to the first upper moving element.

[0014] Advantageously, the drive device is a linear drive device.

[0015] Advantageously, the drive device comprises a motor and a drive lever. The drive lever is mechanically connected to the motor via a support point and is mechanically connected to the first lower moving element via the support point. The drive lever is driven by the motor to move the floating support point of the first lower moving element in the circular path around the first axis of rotation.

[0016] Advantageously, the first and second upper moving elements are further connected via a rod. The rod comprises a support point pivotally connected to the first upper moving element and a support point pivotally connected to the second upper moving element. The rod is configured to guide the second upper moving element, which moves between the third and fourth offset positions when the first upper moving element is moved by the second lower moving element.

[0017] Advantageously, the upper movement mechanism comprises a fourth upper movement element having at least two support points. The fourth upper movement element is pivotally connected to the frame via a fixed support point and pivotally connected to the upper light guide element via a floating support point. The floating support point has a distance to the fixed support point on the fourth upper movement element, and has a predetermined radius given by the distance between the floating support point and the fixed support point, and is movably arranged along a circular path around a seventh rotation axis defined by the fixed support point. The seventh rotation axis is parallel to the sixth rotation axis. The third and fourth upper movement elements have the same radius. The circular paths of the third and fourth upper movement elements are spatially separated, but can be congruent such that the third and fourth upper movement elements have the same displacement position. The floating support points of the third and fourth upper movement elements are arranged below the respective fixed support points and are movable when viewed in a state where the lighting device is arranged on the vehicle. The third and fourth upper movement elements are further connected via a rod. The rod comprises a support point pivotally connected to the third upper movement element and a support point pivotally connected to the fourth upper movement element. The rod is configured to guide the fourth upper movement element moving between the third and fourth displacement positions when the third upper movement element is moved by the third lower movement element.

[0018] Advantageously, the lighting device comprises a fail-safe mechanism for manually moving the upper and lower light guide elements to the open position. The fail-safe mechanism is a transmission element having a threaded portion extending along a screw axis. The transmission element comprises a transmission element rotatably mounted on the frame about the screw axis and a drive device holder. The drive device holder holds the drive device. The drive device holder comprises a counter-threaded portion corresponding to the threaded portion of the transmission element. The drive device holder is in mechanical engagement with the transmission element by the counter-threaded portion and the threaded portion. The drive device holder has the counter-threaded portion combined with the threaded portion of the transmission element, and is configured to convert the angular movement of the transmission element into linear movement along the screw axis of the movement device in order to convert the rotational movement of the transmission element into linear movement. The linear movement of the drive device moves the first lower movement element to move the lower and upper light guide elements to the open position.

[0019] The object can also be achieved by an automotive headlight comprising at least one lighting device according to the invention.

Brief Description of the Drawings

[0020] In the following, for further demonstrating the present invention, exemplary and non-limiting embodiments are described as shown in the drawings.

Figure 1

Figure 2

Figure 3

Figure 4

Figure 5

Figure 6

Figure 7

Embodiment

[0021] FIG. 1 shows a lighting device 10 for an automotive headlight. The lighting device 10 includes a light module 20 configured to irradiate light along an optical path in the main direction X. The light module 20 is configured to irradiate a low beam and / or high beam light distribution in front of the lighting device 10.

[0022] Furthermore, the lighting device 10 includes a movable lower light guide element 100, a movable upper light guide element 200, and a motion device for moving the lower and upper light guide elements 100, 200 relative to each other between a closed position P1. The lower and upper light guide elements 100, 200 are located in front of at least one light module 20 when viewed in the main direction X and at least partially block the optical path of at least one light module 20. The lower and upper light guide elements 100, 200 are configured to emit light in the main direction X when located at the closed position P1 and the open position P2. The lower and upper light guide elements 100, 200 are moved away from the optical path of at least one light module while maintaining a spatial orientation, releasing the blocking of the optical path of at least one light module 20. In FIG. 1, the lower and upper light guide elements 100, 200 are shown in the closed position P1.

[0023] The light module(s) 20 is shown, for example, in FIG. 6, in which the lighting device 10 is shown in a front view in the open position P2 so that the light module 20 can be seen.

[0024] Furthermore, the lighting device 10 includes a frame 600. The frame 600 is static or stationary in relation to the movement of the lower and upper light guide elements 100, 200, and the motion mechanism is attached to the frame 600.

[0025] The motion device comprises a lower motion mechanism for moving the lower light guide element 100 between a closed position P1 and an open position P2, the lower motion mechanism comprising a first lower motion element 310 having at least two support points, the first lower motion element 310 being pivotally connected to the frame 600 via a fixed support point 310a and pivotally connected to the lower light guide element 100 via a floating support point 310b, the floating support point 310b having a distance to the fixed support point 310a on the first lower motion element 310, having a predetermined radius R1 given by the distance between the floating support point 310b and the fixed support point 310a, and being movably arranged along a circular path around a first axis of rotation Y1 defined by the fixed support point 310a.

[0026] FIG. 1 shows the lighting device 10 in the closed position P1, and FIG. 4 corresponds to FIG. 1 and shows the lighting device 10 of FIG. 1 in the open position P2 in the same figure.

[0027] Furthermore, the lower motion mechanism comprises a second lower motion element 320 having at least two support points, the second lower motion element 320 being pivotally connected to the frame 600 via a fixed support point 320a and pivotally connected to the lower light guide element 100 via a floating support point 320b, the floating support point 320b having a distance to the fixed support point 320a on the second lower motion element 320, having a predetermined radius R1 given by the distance between the floating support point 320b and the fixed support point 320a, and being movably arranged along a circular path around a second axis of rotation Y2 defined by the fixed support point 320a.

[0028] As can be seen in FIG. 3, the first and second axes of rotation Y1, Y2 are perpendicular to the main direction X and parallel to each other, and the distances between the floating support points 310b, 320b and the fixed support points 310a, 320a of the first and second lower motion elements 310, 320 are the same.

[0029] The circular paths of the first and second lower moving elements 310, 320 are spatially separated but identical such that the first and second lower moving elements 310, 320 have the same displacement positions. The floating support points 310b, 320b of the first and second lower moving elements 310, 320 are arranged above the respective fixed support points 310a, 320a and are movable when viewed in the position state where the lighting device 10 is disposed in the vehicle.

[0030] The first lower moving element 310 is mechanically engaged with a drive device 500 configured to move the first lower moving element 310. The first and second lower moving elements 310, 320 are connected via a lower light guide element 100 such that when the first lower moving element 310 is moved by the drive device 500, the first and second lower moving elements 310, 320 can move around the respective fixed support points 310a, 320a by the same displacement position.

[0031] The drive device 500 includes a motor 510 and a drive lever 520. The drive lever 520 is mechanically connected to the motor 510 via a support point 530 and is mechanically connected to the first lower moving element 310 via a support point 540. The drive lever 520 is driven by the motor 510 to move the floating support point 310b of the first lower moving element 310 on a circular path around the first rotation axis Y1, as can be seen in more detail in FIG. 1.

[0032] Furthermore, the first and second lower moving elements 310, 320 are movably arranged between a first displacement position and a second displacement position. The lower light guide element 100 moves between a closed position P1 and an open position P2 while maintaining its spatial orientation based on the same radius R1 and the displacement positions of the first and second lower moving elements 310, 320. When the first and second lower moving elements 310, 320 are aligned at the first displacement position, the lower light guide element 100 is located at the closed position P1. When the first and second lower moving elements 310, 320 are aligned at the second displacement position, the lower light guide element 100 is located at the open position P2.

[0033] The lighting device 10 further comprises an upper movement mechanism for moving the upper light guide element 200 between a closed position P1 and an open position P2. The upper movement mechanism comprises a first upper movement element 410 having at least two support points. The first upper movement element 410 is pivotally connected to the frame 600 via a fixed support point 410a and is pivotally connected to the upper light guide element 200 via a floating support point 410b.

[0034] The floating support point 410b has a distance to the fixed support point 410a on the first upper movement element 410 and is movably arranged along a circular path around a third rotation axis Y3 defined by the fixed support point 410a with a predetermined radius R2 given by the distance between the floating support point 410b and the fixed support point 410a.

[0035] The upper movement mechanism further comprises a second upper movement element 420 having at least two support points. The second upper movement element 420 is pivotally connected to the frame 600 via a fixed support point 420a and is pivotally connected to the upper light guide element 200 via a floating support point 420b. The floating support point 420b has a distance to the fixed support point 420a on the second upper movement element 420 and is movably arranged along a circular path around a fourth rotation axis Y4 defined by the fixed support point 420a with a predetermined radius R2 given by the distance between the floating support point 420b and the fixed support point 420a. The upper movement mechanism and its component(s) can be seen in detail in FIG. 1.

[0036] The third and fourth rotation axes Y3, Y4 are parallel to each other and parallel to the first and second rotation axes Y1, Y2. The first and second upper movement elements 410, 420 have the same radius R2. The circular path(s) of the first and second upper movement elements 410, 420 are spatially separated, but are congruent such that the first and second upper movement elements 410, 420 have the same displacement position. The floating support points 410b, 420b of the first and second upper movement elements 410, 420 are arranged below the respective fixed support points 410a, 420a and are movable when the lighting device 10 is disposed in the vehicle as viewed.

[0037] The first upper movement element 410 is mechanically engaged with the second lower movement element 320 in a first transmission connection such that the rotational movement of the second lower movement element 320 around the fixed support point 320a is converted into the rotational movement of the first upper movement element 410 around the fixed support point 410a in the reverse rotational direction.

[0038] The first and second upper movement elements 410, 420 are connected via the upper light guide element 200 such that when the first upper movement element 410 is moved by the second lower movement element 320, the first and second upper movement elements 410, 420 are movably arranged around their respective fixed support points 410a, 420a by the same displacement position.

[0039] Furthermore, the first and second upper movement elements 410, 420 are movably arranged between a third displacement position and a fourth displacement position, and the upper light guide element 200 moves the upper light guide element 200 between a closed position P1 and an open position P2 while maintaining its spatial orientation based on the same radius R2 and the displacement positions of the first and second upper movement elements 410, 420. When the first and second upper movement elements 410, 420 are aligned by the third displacement position, the upper light guide element 200 is located at the closed position P1, and when the first and second upper movement elements 410, 420 are aligned by the fourth displacement position, the upper light guide element 200 is located at the open position P2.

[0040] The lower movement mechanism includes a lower movement element 330 having at least two support points. The lower movement element 330 is pivotally connected to the frame 600 via a fixed support point 330a and pivotally connected to the lower light guide element 100 via a floating support point 330b. The floating support point 330b has a distance to the fixed support point 330a on the third lower movement element 330, has a predetermined radius R1 given by the distance between the floating support point 330b and the fixed support point 330a, and is movably arranged along a circular path around the fifth rotation axis Y5 defined by the fixed support point 330a.

[0041] The upper movement mechanism further includes a third upper movement element 430 having at least two support points. The third upper movement element 430 is pivotally connected to the frame 600 via a fixed support point 430a and pivotally connected to the upper light guide element 200 via a floating support point 430b. The floating support point 430b has a distance to the fixed support point 430a on the third upper movement element 430, has a predetermined radius R2 given by the distance between the floating support point 430b and the fixed support point 430a, and is movably arranged along a circular path around the sixth rotation axis Y6 defined by the fixed support point 430a.

[0042] The third upper movement element 430 is mechanically engaged with the third lower movement element 330 in a second transmission connection such that the rotational movement of the third lower movement element 330 around the fixed support point 330a is converted into the rotational movement of the third upper movement element 430 around the fixed support point 430a in the opposite rotational direction.

[0043] Furthermore, the lighting device 10 has - when viewed in the main direction X and in the state where the lighting device 10 is arranged on the vehicle - two opposing side surfaces, and only one transmission connection is arranged on each side surface.

[0044] Furthermore, when the lower and upper movement mechanisms move from the open position P2 to the closed position P1, the lower and upper light guide elements 100, 200 are caused to move relative to each other with respect to the main direction X in accordance with the movement in which the light guide elements 100, 200 move simultaneously. Thus, when viewed in the y-direction, for example, in the side view of the lighting device 10, as shown in FIGS. 4 and 5, the light guide element(s) move along a circular path shown as a dotted line in FIGS. 4 and 5.

[0045] When moving from the closed position P1 to the open position P2, the light guide element moves in the reverse of the above-described movement.

[0046] In the illustrated example of the lighting device 10, the third upper movement element 430 and the third lower movement element 330 are constructed as gears that mechanically engage with each other to transmit the movement of the third lower movement element 330 to the third upper movement element 430.

[0047] Also, the second lower movement element 320 and the first upper movement element 410 are constructed as gears that mechanically engage with each other to transmit the movement of the second lower movement element 320 to the first upper movement element 410.

[0048] Furthermore, the first and second upper movement elements 410, 420 are further connected via a rod 450. The rod 450 includes a support point pivotally connected to the first upper movement element 410 and a support point pivotally connected to the second upper movement element 420. The rod 450 is configured to guide the second upper movement element 420 that moves between the third displacement position and the fourth displacement position when the first upper movement element 410 is moved by the second lower movement element 320, as can be seen in FIG. 1.

[0049] Furthermore, the upper movement mechanism includes a fourth upper movement element 440 having at least two support points. The fourth upper movement element 440 is pivotally connected to the frame 600 via a fixed support point 440a and pivotally connected to the upper light guide element 200 via a floating support point 440b. The floating support point 440b has a distance to the fixed support point 440a on the fourth upper movement element 440, has a predetermined radius R2 given by the distance between the floating support point 440b and the fixed support point 440a, and is movably arranged along a circular path around a seventh rotation axis Y7 defined by the fixed support point 440a. The seventh rotation axis Y7 is parallel to the sixth rotation axis Y6.

[0050] The third and fourth upper movement elements 430, 440 have the same radius R2. The circular paths of the third and fourth upper movement elements 430, 440 are spatially separated but congruent such that the third and fourth upper movement elements 430, 440 have the same displacement position. The floating support points 430b, 440b of the third and fourth upper movement elements 430, 440 are arranged below the fixed support points 430a, 440a respectively and are movable when viewed in the state where the lighting device 10 is arranged on the vehicle.

[0051] The third and fourth upper movement elements 430, 440 are further connected via a rod 460. The rod 460 includes a support point pivotally connected to the third upper movement element 430 and a support point pivotally connected to the fourth upper movement element 440. The rod 460 is configured to guide the fourth upper movement element 440 which is moving between the third displacement position and the fourth displacement position when the third upper movement element 430 is moved by the third lower movement element 330, as can be seen, for example, in FIG. 2.

[0052] Furthermore, FIG. 2 shows the lighting device 10 in the closed position P1, and FIG. 5 corresponds to FIG. 2 and shows the lighting device 10 of FIG. 2 located in the open position P2 in the same figure.

[0053] The lighting device 10 also includes a fail-safe mechanism for manually moving the lower and upper light guide elements 100, 200 to the open position P2 shown in FIG. 7. The fail-safe mechanism includes a transmission element 700 having a threaded portion 710 extending along the screw axis T. The transmission element 700 is rotatably attached to the frame 600 around the screw axis T.

[0054] The fail-safe mechanism further includes a drive device holder 800 that holds the drive device 500. The drive device holder 800 includes a counter-threaded portion 810 corresponding to the threaded portion 710 of the transmission element 700. The drive device holder 800 is in mechanical engagement with the transmission element 700 by the counter-threaded portion 810 and the threaded portion 710.

[0055] The drive device holder 800 having the counter-threaded portion 810 in combination with the threaded portion 710 of the transmission element 700 is configured to convert the rotational movement of the transmission element 700 into a linear movement, specifically to convert the angular movement of the transmission element 700 into a linear movement of the drive device 500 along the screw axis T. The linear movement of the drive device 500 moves the first lower movement element 310 in order to move the lower and upper light guide elements 100, 200 to the open position P2.

[0056] Some or all of the above embodiments may be described as follows in the appended claims, but are not limited thereto. [Appendix 1] - At least one light module (20) configured to irradiate light along the optical path in the main direction (X), - A movable lower light guide element (100) and a movable upper light guide element (200), - A motion device for moving the lower and upper light guide elements (100, 200) relative to each other between a closed position (P1) and an open position (P2), - A frame (600) that is static or stationary with respect to the movement of the lower and upper light guide elements (100, 200) and to which the motion mechanism is attached. In the closed position (P1), the lower and upper light guide elements (100, 200) - At least partially block the optical path of the at least one light module (20) in front of the at least one light module (20) when viewed in the main direction (X), and - The lower and upper light guide elements (100, 200) are configured to irradiate light in the main direction when in the closed position (P1). In the open position (P2), the lower and upper light guide elements (100, 200) are moved away from the optical path of the at least one light module and are configured to release the blocking of the optical path of the at least one light module (20) while maintaining their spatial orientation. The motion device includes - A lower motion mechanism for moving the lower light guide element (100) between the closed and open positions (P1, P2), and - An upper motion mechanism for moving the upper light guide element (200) between the closed and open positions (P1, P2). The lower motion mechanism includes - A first lower motion element (310) having at least two support points, - A second lower motion element (320) having at least two support points, and - A third lower motion element (330) having at least two support points. The upper motion mechanism includes - A first upper motion element (410) having at least two support points, - A second upper motion element (420) having at least two support points, and - A third upper motion element (430) having at least two support points.The first lower movement element (310) is pivotally connected to the frame (600) via a fixed support point (310a), and is pivotally connected to the lower light guide element (100) via a floating support point (310b). The floating support point (310b) has a distance to the fixed support point (310a) on the first lower movement element (310), and has a predetermined radius (R1) given by the distance between the floating support point (310b) and the fixed support point (310a), and is movably arranged along a circular path around a first rotation axis (Y1) defined by the fixed support point (310a). The second lower movement element (320) is pivotally connected to the frame (600) via a fixed support point (320a), and is pivotally connected to the lower light guide element (100) via a floating support point (320b). The floating support point (320b) has a distance to the fixed support point (320a) on the second lower movement element (320), and has a predetermined radius (R1) given by the distance between the floating support point (320b) and the fixed support point (320a), and is movably arranged along a circular path around a second rotation axis (Y2) defined by the fixed support point (320a). The first and second rotation axes (Y1, Y2) are perpendicular to the main direction (X), parallel to each other, and the distances between the floating support points (310b, 320b) and the fixed support points (310a, 320a) of the first and second lower movement elements (310, 320) are the same. The circular paths of the first and second lower movement elements (310, 320) are spatially separated but identical such that the first and second lower movement elements (310, 320) have the same offset position. The floating support points (310b, 320b) of the first and second lower movement elements (310, 320) are arranged above the respective fixed support points (310a, 320a) and are movable when viewed with the lighting device (10) arranged in a vehicle.The first lower moving element (310) is mechanically engaged with a drive device (500) configured to move the first lower moving element (310), and the first and second lower moving elements (310, 320) are such that when the first lower moving element (310) is moved by the drive device (500), the first and second lower moving elements (310, 320) can be moved by the same displacement position around the respective fixed support points (310a, 320a), and are connected via a lower light guide element (100). The first and second lower moving elements (310, 320) can move between the first displacement position and the second displacement position, and based on the same radius (R1) and the displacement positions of the first and second lower moving elements (310, 320), while maintaining the spatial orientation of the lower light guide element (100), move the lower light guide element (100) between a closed position and an open position (P1, P2), and when the first and second lower moving elements (310, 320) are aligned at the first displacement position, the lower light guide element (100) is located at the closed position (P1), and when the first and second lower moving elements (310, 320) are aligned at the second displacement position, the lower light guide element (100) is located at the open position (P2). The first upper movement element (410) is pivotally connected to the frame (600) via a fixed support point (410a), pivotally connected to the upper light guide element (200) via a floating support point (410b), and the floating support point (410b) has a distance to the fixed support point (410a) on the first upper movement element (410), and has a predetermined radius (R2) given by the distance between the floating support point (410b) and the fixed support point (410a), and is movably arranged along a circular path around a third rotation axis (Y3) defined by the fixed support point (410a). The second upper movement element (420) is pivotally connected to the frame (600) via a fixed support point (420a), pivotally connected to the upper light guide element (200) via a floating support point (420b), and the floating support point (420b) has a distance to the fixed support point (420a) on the first upper movement element (420), and has a predetermined radius (R2) given by the distance between the floating support point (420b) and the fixed support point (420a), and is movably arranged along a circular path around a fourth rotation axis (Y4) defined by the fixed support point (420a). The third and fourth rotation axes (Y3, Y4) are parallel to each other, parallel to the first and second rotation axes (Y1, Y2), and the first and second upper movement elements (410, 420) have the same radius (R2), and the circular paths of the first and second upper movement elements (410, 420) are spatially separated, but are congruent such that the first and second upper movement elements (410, 420) have the same offset position, and the floating support points (410b, 420b) of the first and second upper movement elements (410, 420) are arranged below the respective fixed support points (410a, 420a) and are movable when viewed in a state where the lighting device (10) is arranged in an automobile. The first upper movement element (410) is mechanically engaged with the second lower movement element (320) in a first transmission connection such that a rotational movement around the fixed support point (320a) of the second lower movement element (320) is converted into a rotational movement in the opposite rotational direction around the fixed support point (410a) of the first upper movement element (410).The first and second upper movement elements (410, 420) are coupled via the upper light guide element (200) such that when the first upper movement element (410) is moved by the second lower movement element (320), the first and second upper movement elements (410, 420) can move around their respective fixed support points (410a, 420a) by the same displacement position. The first and second upper movement elements (410, 420) are movably arranged between a third displacement position and a fourth displacement position, and move the upper light guide element (200) between a closed position and an open position (P1, P2) while maintaining its spatial orientation based on the same radius (R2) and the displacement positions of the first and second upper movement elements (410, 420). When the first and second upper movement elements (410, 420) are aligned at the third displacement position, the upper light guide element (200) is located at the closed position (P1), and when the first and second upper movement elements (410, 420) are aligned at the fourth displacement position, the upper light guide element (200) is located at the open position (P2). The third lower movement element (330) is pivotally connected to the frame (600) via a fixed support point (330a), pivotally connected to the lower light guide element (100) via a floating support point (330b), and the floating support point (330b) has a distance to the fixed support point (330a) on the third lower movement element (330), and has a predetermined radius (R1) given by the distance between the floating support point (330b) and the fixed support point (330a), and is movably arranged along a circular path around a fifth rotation axis (Y5) defined by the fixed support point (330a). The third upper movement element (430) is pivotally connected to the frame (600) via a fixed support point (430a), pivotally connected to the upper light guide element (200) via a floating support point (430b), and the floating support point (430b) has a distance to the fixed support point (430a) on the third upper movement element (430), and has a predetermined radius (R2) given by the distance between the floating support point (430b) and the fixed support point (430a), and is movably arranged along a circular path around a sixth rotation axis (Y6) defined by the fixed support point (430a). The third upper motion element (430) is mechanically engaged in a second transmission connection with a third lower motion element (330) such that rotational movement of the third lower motion element (330) about a fixed support point (330a) is converted into rotational movement of the third upper motion element (430) about a fixed support point (430a) in a reverse rotational direction. The lighting device (10) has, in a main direction (X), as viewed in a state where the lighting device (10) is arranged in a motor vehicle, two opposing side faces, and in each of the side faces, only one transmission connection is arranged. [Appendix 2] The lighting device according to Appendix 1, wherein the third upper motion element (430) and the third lower motion element (330) are constructed as gears that mechanically engage with each other to transmit the movement of the third lower motion element (330) to the third upper motion element. [Appendix 3] The lighting device according to Appendix 1 or 2, wherein the second lower motion element (320) and the first upper motion element (410) are constructed as gears that mechanically engage with each other to transmit the movement of the second lower motion element (320) to the first upper motion element. [Appendix 4] The lighting device according to any one of Appendices 1 to 3, wherein the drive device (500) is a linear drive device. [Appendix 5] The lighting device according to any one of Appendices 1 to 4, wherein the drive device includes a motor (510) and a drive lever (520), the drive lever (520) is mechanically connected to the motor (510) via a support point (530), and is mechanically connected to the first lower motion element (310) via a support point (540), and the drive lever (520) is driven by the motor (510) to move the floating support point (310b) of the first lower motion element (310) on the circular path around the first rotation axis (Y1). [Appendix 6] The first and second upper movement elements (410, 420) are further connected via a rod (450), the rod (450) comprising a support point pivotally connected to the first upper movement element (410) and a support point pivotally connected to the second upper movement element (420), the rod (450) being configured to guide the second upper movement element (420) moving between the third and fourth offset positions when the first upper movement element (410) is moved by the second lower movement element (320). A lighting device according to any one of appendices 1 to 5. [Appendix 7] The lighting device according to any one of Supplementary Notes 1 to 6. The upper movement mechanism includes a fourth upper movement element (440) having at least two support points, and the fourth upper movement element (440) is pivotally connected to the frame (600) via a fixed support point (440a) and pivotally connected to the upper light guide element (200) via a floating support point (440b). The floating support point (440b) has a distance to the fixed support point (440a) on the fourth upper movement element (440), and has a predetermined radius (R2) given by the distance between the floating support point (440b) and the fixed support point (440a), and is movably arranged along a circular path around a seventh rotation axis (Y7) defined by the fixed support point (440a), and the seventh rotation axis (Y7) is parallel to the sixth rotation axis (Y6). The third and fourth upper movement elements (430, 440) have the same radius (R2), and the circular paths of the third and fourth upper movement elements (430, 440) are spatially separated, but are congruent such that the third and fourth upper movement elements (430, 440) have the same displacement position, and the floating support points (430b, 440b) of the third and fourth upper movement elements (430, 440) are arranged below the respective fixed support points (430a, 440a) and are movable when viewed in a state where the lighting device (10) is arranged on the vehicle. The third and fourth upper movement elements (430, 440) are further connected via a rod (460), and the rod (460) includes a support point pivotally connected to the third upper movement element (430) and a support point pivotally connected to the fourth upper movement element (440), and the rod (460) is configured to guide the fourth upper movement element (440) that moves between the third and fourth displacement positions when the third upper movement element (430) is moved by the third lower movement element (330). [Supplementary Note 8] The lighting device (10) comprising a fail-safe mechanism for manually moving the upper and lower light guide elements (100, 200) to an open position (P2), wherein the fail-safe mechanism comprises: a transmission element (700) having a threaded portion (710) extending along a screw axis (T), the transmission element (700) being rotatably attached to a frame (600) around the screw axis (T); and a drive device holder (800). The drive device holder (800) holds the drive device (500), and the drive device holder (800) comprises a counter-threaded portion (810) corresponding to the threaded portion (710) of the transmission element (700), and the drive device holder (800) is in mechanical engagement with the transmission element (700) by the counter-threaded portion (810) and the threaded portion (710). The drive device holder (800) has the counter-threaded portion (810) combined with the threaded portion (710) of the transmission element (700), and is configured to convert the angular movement of the transmission element (700) into a linear movement along the screw axis (T) of the movement device (500) in order to convert the rotational movement of the transmission element (700) into a linear movement. The linear movement of the drive device (500) moves the first lower movement element (310) in order to move the lower and upper light guide elements (100, 200) to the open position (P2). [Appendix 9] An automotive headlight comprising the lighting device (10) according to any one of Appendices 1 to 8. It goes without saying that any combination of the various forms according to the appendices of the present disclosure, or any combination of the elements described in the embodiments (including non-selection of some elements), can be made by those skilled in the art at any time according to the basic concept of the present disclosure. It should be noted that the addition of reference numerals of the drawings to the claims is solely for the purpose of assisting the understanding of the invention and is not intended to limit the claims to the illustrated embodiments.

Explanation of Symbols

[0057] Lighting device 10 Light module 20 Lower light guide element 100 Upper light guide element 200 First lower moving element 310 Fixed support point (1. lower m.e) 310a Floating support point (1. lower m.e) 310b Second lower moving element 320 Fixed support point (2. lower m.e) 320a Fixed support point (2. lower m.e) 320b Third lower moving element 330 Fixed support point (3. lower m.e) 330a Floating support point (3. lower m.e) 330b First upper moving element 410 Fixed support point (1. upper m.e) 410a Floating support point (1. upper m.e) 410b Second upper moving element 420 Fixed support point (2. upper m.e) 420a Floating support point (2. upper m.e) 420b Third upper moving element 430 Fixed support point (3. upper m.e) 430a Floating support point (3. upper m.e) 430b Fourth upper moving element 440 Fixed support point (4. upper m.e) 440a Floating support point (4. upper m.e) 440b Rods 450, 460 Drive device 500 Motor 510 Drive lever 520 Support point (lever / motor) 530 Support point (lever / 1. lower m.e) 540 Frame 600 Transmission element 700 Threaded part 710 Drive device holder 800 Opposing threaded part 810 Closed position P1 Open position P2 Radii R1, R2 Thread axis T Main direction X First rotation axis Y1 Second rotation axis Y2 Third rotation axis Y3 Fourth rotation axis Y4 Fifth rotation axis Y5 Sixth rotation axis Y6 Seventh rotation axis Y7

Claims

1. - At least one optical module (20) configured to irradiate light along the optical path in the main direction (X); - A movable lower light guide element (100) and a movable upper light guide element (200); - A motion device for moving the lower and upper light guide elements (100, 200) relative to each other between a closed position (P1) and an open position (P2); - A frame (600) that is static or stationary with respect to the movement of the lower and upper light guide elements (100, 200) and to which the motion device is attached Comprising In the closed position (P1), the lower and upper light guide elements (100, 200) - when viewed in the main direction (X), in front of the at least one optical module (20), at least partially block the optical path of the at least one optical module (20), and the lower and upper light guide elements (100, 200) are configured to irradiate light in the main direction when in the closed position (P1); In the open position (P2), the lower and upper light guide elements (100, 200) are moved away from the optical path of the at least one optical module and are configured to release the blocking of the optical path of the at least one optical module (20) while maintaining their spatial orientation An illuminating device for a motor vehicle headlamp, The motion device is - A lower motion mechanism for moving the lower light guide element (100) between a closed position and an open position (P1, P2); - An upper motion mechanism for moving the upper light guide element (200) between a closed position and an open position (P1, P2); Comprising The lower motion mechanism is - A first lower motion element (310) having at least two support points; - A second lower motion element (320) having at least two support points; - A third lower motion element (330) having at least two support points Comprising The upper motion mechanism is - A first upper motion element (410) having at least two support points; - A second upper motion element (420) having at least two support points; - A third upper motion element (430) having at least two support points Comprising The first lower moving element (310) is pivotally connected to the frame (600) via a first fixed support point (310a), and is pivotally connected to the lower light guide element (100) via a first floating support point (310b). The first floating support point (310b) has a distance to the first fixed support point (310a) on the first lower moving element (310), and has a predetermined radius (R1) given by the distance between the first floating support point (310b) and the first fixed support point (310a). The first floating support point (310b) is movably arranged along a circular path around a first rotation axis (Y1) defined by the first fixed support point (310a). The second lower moving element (320) is pivotally connected to the frame (600) via a second fixed support point (320a), and is pivotally connected to the lower light guide element (100) via a second floating support point (320b). The second floating support point (320b) has a distance to the second fixed support point (320a) on the second lower moving element (320), and has a predetermined radius (R1) given by the distance between the second floating support point (320b) and the second fixed support point (320a). The second floating support point (320b) is movably arranged along a circular path around a second rotation axis (Y2) defined by the second fixed support point (320a). The first and second rotation axes (Y1, Y2) are perpendicular to the main direction (X) and parallel to each other. The distances between the first and second floating support points (310b, 320b) and the first and second fixed support points (310a, 320a) of the first and second lower moving elements (310, 320) are the same. The circular paths of the first and second lower moving elements (310, 320) are spatially separated but identical such that the first and second lower moving elements (310, 320) have the same displacement position. The first and second floating support points (310b, 320b) of the first and second lower moving elements (310, 320) are arranged above and are movable relative to the first and second fixed support points (310a, 320a) respectively when the lighting device is disposed in the vehicle. The first lower moving element (310) is mechanically engaged with a driving device (500) configured to move the first lower moving element (310), and the first and second lower moving elements (310, 320) are connected via a lower light guide element (100) such that when the first lower moving element (310) is moved by the driving device (500), the first and second lower moving elements (310, 320) can be moved by the same displacement position around the first and second fixed support points (310a, 320a) respectively. The first and second lower moving elements (310, 320) can move between a first displacement position and a second displacement position, and the lower light guide element (100) is moved between a closed position and an open position (P1, P2) while maintaining its spatial orientation based on the same radius (R1) and the displacement positions of the first and second lower moving elements (310, 320). When the first and second lower moving elements (310, 320) are aligned at the first displacement position, the lower light guide element (100) is located at the closed position (P1), and when the first and second lower moving elements (310, 320) are aligned at the second displacement position, the lower light guide element (100) is located at the open position (P2). The first upper moving element (410) is pivotally connected to the frame (600) via a fourth fixed support point (410a) and pivotally connected to an upper light guide element (200) via a fourth floating support point (410b). The fourth floating support point (410b) has a distance to the fourth fixed support point (410a) on the first upper moving element (410), and has a predetermined radius (R2) given by the distance between the fourth floating support point (410b) and the fourth fixed support point (410a), and is movably arranged along a circular path around a third rotation axis (Y3) defined by the fourth fixed support point (410a). The second upper movement element (420) is pivotally connected to the frame (600) via a fifth fixed support point (420a), and is pivotally connected to the upper light guide element (200) via a fifth floating support point (420b), and the fifth floating support point (420b) has a distance to the fifth fixed support point (420a) on the first upper movement element (420), and has a predetermined radius (R2) given by the distance between the fifth floating support point (420b) and the fifth fixed support point (420a), and is movably arranged along a circular path around a fourth rotation axis (Y4) defined by the fifth fixed support point (420a). The third and fourth rotation axes (Y3, Y4) are parallel to each other, are parallel to the first and second rotation axes (Y1, Y2), and the first and second upper movement elements (410, 420) have the same radius (R2), and the circular paths of the first and second upper movement elements (410, 420) are spatially separated, but are congruent such that the first and second upper movement elements (410, 420) have the same displacement position, and the fourth and fifth floating support points (410b, 420b) of the first and second upper movement elements (410, 420) are arranged below and are movable relative to the fourth and fifth fixed support points (410a, 420a) respectively when the lighting device is viewed in the state of being arranged in a vehicle. The first upper movement element (410) is mechanically engaged with the second lower movement element (320) in a first transmission connection such that the rotational movement of the second lower movement element (320) around the second fixed support point (320a) is converted into a rotational movement in the reverse rotational direction around the fourth fixed support point (410a) of the first upper movement element (410). The first and second upper movement elements (410, 420) are coupled via the upper light guide element (200) such that when the first upper movement element (410) is moved by the second lower movement element (320), the first and second upper movement elements (410, 420) can be moved around their respective fourth and fifth fixed support points (410a, 420a) by the same displacement position. The first and second upper moving elements (410, 420) are movably arranged between a third displaced position and a fourth displaced position, and move the upper light guide element (200) between a closed position and an open position (P1, P2) while maintaining its spatial orientation based on the same radius (R2) and the displaced positions of the first and second upper moving elements (410, 420). When the first and second upper moving elements (410, 420) are aligned at the third displaced position, the upper light guide element (200) is located at the closed position (P1), and when the first and second upper moving elements (410, 420) are aligned at the fourth displaced position, the upper light guide element (200) is located at the open position (P2). The third lower moving element (330) is pivotally connected to the frame (600) via a third fixed support point (330a), pivotally connected to the lower light guide element (100) via a third floating support point (330b), and the third floating support point (330b) has a distance to the third fixed support point (330a) on the third lower moving element (330), and has a predetermined radius (R1) given by the distance between the third floating support point (330b) and the third fixed support point (330a), and is movably arranged along a circular path around a fifth rotation axis (Y5) defined by the third fixed support point (330a). The third upper moving element (430) is pivotally connected to the frame (600) via a sixth fixed support point (430a), pivotally connected to the upper light guide element (200) via a sixth floating support point (430b), and the sixth floating support point (430b) has a distance to the sixth fixed support point (430a) on the third upper moving element (430), and has a predetermined radius (R2) given by the distance between the sixth floating support point (430b) and the sixth fixed support point (430a), and is movably arranged along a circular path around a sixth rotation axis (Y6) defined by the sixth fixed support point (430a). The third upper movement element (430) is mechanically engaged in the second transmission connection with the third lower movement element (330) such that a rotational movement of the third lower movement element (330) around the third fixed support point (330a) is converted into a rotational movement of the third upper movement element (430) around the sixth fixed support point (430a) in the opposite rotational direction. The lighting device - in the main direction (X), as seen when the lighting device is arranged in a motor vehicle - has two opposite side surfaces, and only one transmission connection is arranged on each of the side surfaces A lighting device characterized by this. [

2. ] The third upper movement element (430) and the third lower movement element (330) are constructed as gears that mechanically engage with each other in order to transmit the movement of the third lower movement element (330) to the third upper movement element. The lighting device according to claim 1. [

3. ] The second lower movement element (320) and the first upper movement element (410) are constructed as gears that mechanically engage with each other in order to transmit the movement of the second lower movement element (320) to the first upper movement element. The lighting device according to claim 1. [

4. ] The drive device (500) is a linear drive device. The lighting device according to claim 1. [

5. ] The drive device includes a motor (510) and a drive lever (520). The drive lever (520) is mechanically connected to the motor (510) via a support point (530) and is mechanically connected to the first lower movement element (310) via a support point (540). The drive lever (520) is driven by the motor (510) to move the first floating support point (310b) of the first lower movement element (310) on the circular path around the first rotation axis (Y1). The lighting device according to claim 1. [

6. ] The first and second upper movement elements (410, 420) are further connected via a rod (450). The rod (450) includes a support point pivotally connected to the first upper movement element (410) and a support point pivotally connected to the second upper movement element (420). The rod (450) is configured to guide the second upper movement element (420) that is moving between the third and fourth offset positions when the first upper movement element (410) is moved by the second lower movement element (320). The lighting device according to claim 1.

7. The upper movement mechanism includes a fourth upper movement element (440) having at least two support points, and the fourth upper movement element (440) is pivotally connected to the frame (600) via a seventh fixed support point (440a) and is pivotally connected to the upper light guide element (200) via a seventh floating support point (440b). The seventh floating support point (440b) has a distance to the seventh fixed support point (440a) on the fourth upper movement element (440), and has a predetermined radius (R2) given by the distance between the seventh floating support point (440b) and the seventh fixed support point (440a). It is movably arranged along a circular path around a seventh rotation axis (Y7) defined by the seventh fixed support point (440a), and the seventh rotation axis (Y7) is parallel to the sixth rotation axis (Y6). The third and fourth upper movement elements (430, 440) have the same radius (R2), and the circular paths of the third and fourth upper movement elements (430, 440) are spatially separated, but are congruent such that the third and fourth upper movement elements (430, 440) have the same displacement position. The sixth and seventh floating support points (430b, 440b) of the third and fourth upper movement elements (430, 440) are arranged below and are movable relative to the sixth and seventh fixed support points (430a, 440a) respectively when viewed in a state where the lighting device is arranged in a vehicle. The third and fourth upper movement elements (430, 440) are further connected via a rod (460). The rod (460) includes a support point pivotally connected to the third upper movement element (430) and a support point pivotally connected to the fourth upper movement element (440). The rod (460) is configured to guide the fourth upper movement element (440) that moves between the third and fourth displacement positions when the third upper movement element (430) is moved by the third lower movement element (330). The lighting device according to claim 1.

8. The lighting device comprising a fail-safe mechanism for manually moving the upper and lower light guide elements (100, 200) to an open position (P2), wherein the fail-safe mechanism is - a transmission element (700) comprising a thread portion (710) extending along a screw axis (T), the transmission element (700) being rotatably attached to a frame (600) around the screw axis (T), and - a drive device holder (800) and comprising the drive device holder (800) holds the drive device (500), and the drive device holder (800) comprises a counter-thread portion (810) corresponding to the thread portion (710) of the transmission element (700), and the drive device holder (800) is in mechanical engagement with the transmission element (700) by the counter-thread portion (810) and the thread portion (710), the drive device holder (800) has the counter-thread portion (810) combined with the thread portion (710) of the transmission element (700), and is configured to convert the angular movement of the transmission element (700) into a linear movement along the screw axis (T) of the drive device (500) in order to convert the rotational movement of the transmission element (700) into a linear movement, the linear movement of the drive device (500) moves the first lower movement element (310) in order to move the lower and upper light guide elements (100, 200) to the open position (P2) The lighting device according to claim 1.

9. An automotive headlight comprising the lighting device according to any one of claims 1 to 8.

Images