Device comprising illuminated movable closure elements

Abstract

The invention relates to a device (100) for a motor vehicle, comprising at least two movable closure elements (120.1 – 120.4) having a first face (122) and a second face (123), and an actuator (130) capable of moving the movable closure elements into a closed position of the device and into at least one open position of the device. The device comprises a light source (110) arranged to emit light rays towards a movable closure element of which the first face is arranged facing a second face of another movable closure element, in the open position. The movable closure element towards which the light rays from the source are emitted is rigidly connected to a reflective element capable of reflecting at least some of the emitted light rays towards the second face of the other movable closure element, in the at least one open position.

Description

Device comprising illuminated movable shutter elements

[0001] The present invention relates to the field of lighting the closing elements of a device for a motor vehicle. It relates in particular to a device capable of illuminating, and thus making its closing elements visible.

[0002] It is particularly advantageous in the case where the device is dedicated to a thermal function of the vehicle, for example to ventilate / cool a component located behind a frame of the closing device.

[0003] Devices for motor vehicles comprising movable shutter elements are known, the movable shutter elements being movable between an open and closed position, in order to selectively allow a flow of air to pass through, thereby cooling a component located behind the device, for example the vehicle engine. Such a device is called an active grille shutter, or AGS. Vehicle interior ventilation devices also comprise movable shutter elements which can be moved to allow or not allow a flow of air to pass through into the vehicle.

[0004] However, such devices are not illuminated in such a way as to enable the closure elements to be viewed, in particular to enable one to know whether the closure elements are in the open or closed position.

[0005] Furthermore, the fact that the shutter elements are mobile and can occupy several partial opening positions complicates their lighting.

[0006] There is thus a need to illuminate movable closure elements of a device for a motor vehicle, adapted to the movement of the movable closure elements, which adapts to the shape of the movable closure elements, which induces few structural modifications of the device and which takes into account weight constraints inherent in motor vehicles. Furthermore, it is preferable that the illumination of the movable closure element is homogeneous.

[0007] To this end, a first aspect of the invention relates to a device for a motor vehicle comprising:- at least two movable closure elements, each movable closure element comprising a first face and a second face;- an actuator capable of moving said at least two movable closure elements into a closed position of the device and into at least one open position of the device;- at least one light source arranged so as to emit light rays towards at least one movable closure element, the first face of which is arranged opposite a second face of another movable closure element in the at least one open position;in which the at least one movable shutter element towards which the light rays from said at least one source are emitted, is integral with a reflective element capable of reflecting at least part of the light rays emitted towards the second face of the other movable shutter element, in the at least one open position.;

[0008] Thus, the second face of at least one movable shutter element is illuminated, and made visible, via a reflective element integral with the movement of the movable shutter elements. This allows dynamic lighting of the device for a motor vehicle. The reflective element can be obtained by a surface treatment of the first face, such as the addition of a reflective paint, or can be an additional element, such as a mirror.

[0009] According to embodiments, the device may comprise at least two reflective elements arranged to return a portion of the light rays from the light source towards at least two respective second faces of two movable shutter elements.

[0010] Thus, it is made possible to illuminate the second faces of several movable shutter elements, or even of all the movable shutter elements of the device, which improves the visibility of the device in the open position for an observer outside the device.

[0011] Additionally, according to a first embodiment of the invention, said at least one light source may comprise at least one light element capable of and arranged so as to emit light rays towards said at least two reflective elements.

[0012] Thus, a single light element can illuminate several movable shutter elements, which reduces the number of light elements in the light source and therefore its size. The space requirement associated with the lighting function of the device is thus reduced.

[0013] Alternatively, according to a second embodiment, said at least one light source may comprise at least two light elements, each light element being capable of and arranged so as to emit light rays towards only one of the at least two reflective elements.

[0014] The use of dedicated lighting elements allows for better light output than a shared source. In addition, less powerful, and therefore less expensive, lighting elements can be provided.

[0015] According to embodiments, the movable shutter elements can extend longitudinally in a first direction, said at least one light source can extend longitudinally in the first direction, and said at least one light source can comprise, for each longitudinal position among a set of longitudinal positions in the first direction, at least one light element.

[0016] This makes it possible to uniformly illuminate large moving shutter elements.

[0017] In addition, for each longitudinal position, the device may comprise N reflective elements and the light source may comprise N light elements, each light element being capable of emitting light rays towards one of the N reflective elements only, N being greater than or equal to 2.

[0018] This makes it possible to improve the light output of the light source while uniformly illuminating possibly large moving shutter elements.

[0019] Further in addition, for each longitudinal position, the light elements can be arranged on one face of the same support, the face of the support can be shaped so as to define respective inclinations of the light elements and / or respective positions of the light elements along a first axis perpendicular to a longitudinal axis and along a second axis perpendicular to the longitudinal axis, the first axis and the second axis being perpendicular to each other. The respective inclinations and / or the positions along the first and second axes perpendicular to the longitudinal axis can be different for at least two reflective elements among the N reflective elements.

[0020] This makes it possible to optimize the illumination of the movable shutter elements, depending in particular on the respective geometries and arrangements of the movable shutter elements, and the position of the light source.

[0021] According to embodiments, the device may further comprise a frame and a reflective element fixed to said frame, said at least one light source may be capable of emitting light rays towards the reflective element fixed to said frame, and the reflective element fixed to the frame may be capable of reflecting at least a portion of the light rays towards a second face of a movable shutter element, the second face of which is not opposite any first face of another movable shutter element.

[0022] It is thus made possible to illuminate the second face of the movable shutter element in the extreme position, for example the one closest to the frame of the device. Thus, all the movable shutter elements of the device can be illuminated according to the invention.

[0023] According to a third embodiment, the actuator may be capable of generating a mechanical force in order to move said movable shutter elements, the device may further comprise a mechanical element capable of transmitting the mechanical force generated by the actuator to said at least one light source.

[0024] This allows the lighting of the moving shutter elements to adapt to their movement, which improves the light output but also the uniformity of the lighting between the different opening positions.

[0025] Additionally, the mechanical element may be a camshaft capable of converting the mechanical force of the actuator into a trajectory of the light source by a non-linear function.

[0026] This makes it possible to optimize the trajectory of the light source according to the successive opening positions of the movable shutter elements.

[0027] Other characteristics and advantages of the invention will appear on examining the detailed description below, and the appended drawings in which:

[0028] illustrates a front view of a device for a motor vehicle according to embodiments of the invention;

[0029] illustrates a side view of a device for a motor vehicle according to a first embodiment, in a first configuration;

[0030] illustrates a side view of a device for a motor vehicle according to the first embodiment, in a second configuration;

[0031] illustrates a side view of a device for a motor vehicle according to a second embodiment, in a given configuration;

[0032] illustrates a light source of a device for a motor vehicle according to the second embodiment of the invention.

[0033] illustrates a side view of a device for a motor vehicle according to a third embodiment, in a first configuration;

[0034] illustrates a side view of a device for a motor vehicle according to a third embodiment, in a second configuration;

[0035] illustrates a side view of a device for a motor vehicle according to a third embodiment, in a third configuration.

[0036] The description focuses on the features that distinguish the device from those known in the state of the art.

[0037] Illustrates a front view, in a YZ plane, of a device 100 for a motor vehicle according to embodiments of the invention.

[0038] The device 100 comprises at least one movable closure element 120.1. In the, it is considered for illustrative purposes that the device 100 comprises four movable closure elements 120.1 to 120.4, the movable closure elements being able to be moved between at least one open position, and a closed position. Preferably, the movable closure elements are able to switch between a closed position, at least one partially open position and a maximum open position.

[0039] For example, the movable closure elements can be moved by transmitting a mechanical rotational force from a common axis 131, capable of being driven in rotation around the Z axis by an actuator 130. However, any other rotational and / or translational movement can be provided according to the invention to move the movable closure elements between the different opening and closing positions.

[0040] The actuator 130 can be controlled electronically by control signals from a control element of the vehicle, such as a centralized control module, of the ECU type for example, for “Electronic Control Unit” in English. The control element can in particular control the actuator 130 according to parameters evaluated from data from vehicle sensors. It is thus possible to adapt the flow of air entering through the openings created by the movable closure elements, according to the environment of the vehicle and / or its operation. Alternatively, the actuator 130 can be activated manually by a user of the vehicle.

[0041] The mechanical force of the axis 131 can be transmitted to the movable closure elements 120.1 to 120.4 via first mechanical transmission elements 132.1 to 132.4, making it possible in particular to convert the mechanical rotational force along the Z axis of the axis 131 into a rotational force along the Y axis and / or a translational force along the Z axis and / or along the X axis. No restriction is attached to the rotational and / or translational movement applied to the movable closure elements 120.1 to 120.4 to move them between open and closed positions.

[0042] The device 100 may be an active vehicle grille shutter, capable of being placed at the front of the vehicle, and capable of selectively allowing an air flow to pass through so as to cool the components located at the front of the vehicle, in particular the engine. Alternatively, the device 100 may be a shutter for internal ventilation of the vehicle, operable manually or electronically by the user of the vehicle. Generally speaking, the device 100 covers any device of a vehicle fulfilling a given function by moving at least two shutter elements between at least one open position and a closed position.

[0043] According to the invention, the device 100 may further comprise at least one light source 110 capable of emitting light towards the closure elements 120.1 to 120.4. In particular, as will be better seen in the following figures, said at least one light source is arranged for and capable of emitting light towards a first end of at least one movable closure element 120.1 to 120.4, and preferably towards the respective first ends of all the movable closure elements 120.1 to 120.4.

[0044] No restriction is attached to the technology of said at least one light source 110. In the example described with reference to the figures, given for illustrative purposes, the light source 110 comprises several electroluminescent elements 112, of the LED type for example, distributed at several longitudinal positions along the Y axis of a support or substrate 111, which may advantageously be a printed circuit, or PCB in English, for Printed Circuit Board. Such a distribution along the Y axis makes it possible to illuminate the movable shutter elements 120.1 to 120.4 over their entire width. However, the invention also applies to a light source 110 comprising a single light element, such as an electroluminescent element 112, illuminating only a portion of the width of the movable shutter elements 120.1 to 120.4. As described later, the light source 110 may comprise several electroluminescent elements 112 for a same Y position.

[0045] The electroluminescent elements 112 are advantageously mounted on the same PCB 110 in order to facilitate their mounting in the device 100, as well as their control by a control unit 115. The control unit 115 may be dedicated to controlling the light source 110, or may fulfill another control function. The control element 115 may for example be the aforementioned centralized control module ECU.

[0046] Alternatively, each electroluminescent element 112 is mounted on its own printed circuit. The control element 115 is then connected to all of the printed circuits dedicated to the electroluminescent elements 112. As a further alternative, the electroluminescent elements are divided into groups, and each group is mounted on a dedicated printed circuit 111, thus forming several light sources 110.

[0047] Furthermore, a heat dissipation element, not shown in the figures, such as a radiator, can advantageously be placed below the support 111 in order to dissipate the heat emitted by the electroluminescent elements.

[0048] The light source 110 may be fixed. Alternatively, the light source 110 may be movable, in order to adapt the position of the light source 110 to the movement of the movable shutter elements 120.1 to 120.4. For this purpose, the light source 110 may be mechanically connected to the actuator 130. For example, the light source 110 may be connected to the actuator 130 via the transmission axis 131 and a second transmission element 133. The transmission element 133 may be capable of converting, in a linear or non-linear manner, the rotational movement around the Z axis of the transmission axis 131 into a rotational movement of the light source 110 around the Y axis, and / or translation along the X axis and / or the Z axis. Such a variant in which the light source 110 is mobile will be described in detail with reference to FIGS. 5a to 5c.

[0049] The device 100 may further comprise a frame 140 partially shown in the. The frame 140 is adapted to fix and partially surround at least some of the elements of the device 100 which have been previously described.

[0050] The frame 140 may in particular comprise an upper face which is shown on the, located above, along the Z axis, the movable closure element 120.1.

[0051] This is a side view, in the XZ plane, of a device 100 for a motor vehicle according to a first embodiment, in a first configuration.

[0052] According to the first embodiment, the light source 110 comprises a single electroluminescent element 112 for a given longitudinal position in Y. The light source 110 may also comprise a single electroluminescent element for a single longitudinal position in Y.

[0053] In the first embodiment, the electroluminescent element 112 may be capable of emitting light with low directivity, i.e. in a wide set of directions. In particular, the electroluminescent element 112 is capable of emitting light towards all of the movable shutter elements 120.1-120.4. Such low directivity may be enabled by intrinsic characteristics of the electroluminescent element 112. The electroluminescent element 112 may however be associated with a collimator 113 capable of creating a cone of light of a size making it possible to transmit light rays to all of the movable shutter elements 120.1 to 120.4.

[0054] On the, the movable shutter elements are in the maximum open position, extending substantially along the X axis, so as to allow an air flow to circulate substantially along the X axis, from right to left on the.

[0055] The present device according to the first embodiment as that of the, but in a second configuration, corresponding to a closing position of the movable closing elements 120.1 to 120.4.

[0056] Thus, figures 2a and 2b represent the first embodiment in two different configurations corresponding respectively to a maximum opening position of the movable closure elements 120.1 to 120.4, and to a closing position of the movable closure elements 120.1 to 120.4.

[0057] As previously explained, intermediate opening positions can be defined for the movable shutter elements 120.1 to 120.4 between the extreme positions of figures 2a and 2b.

[0058] Each movable closure element 120.1 to 120.4 comprises a first face 122 and a second face 123, opposite the first face. For at least one movable closure element, the first face 122 is capable of being opposite a second face 123 of another movable element, when the movable closure elements are in an open, intermediate or maximum position.

[0059] In the example considered in the, the first face 122 of the movable closure element 120.3 faces the second face 123 of the movable closure element 120.4, the first face 122 of the movable closure element 120.2 faces the second face 123 of the movable closure element 120.3, and the first face 122 of the movable closure element 120.1 faces the second face 123 of the movable closure element 120.2.

[0060] For the shutter elements 120.1, 120.2 and 120.3 having a first face 122 facing a second face 123 of another movable shutter element, the movable shutter elements are shaped and arranged so that the first faces directly receive light rays emitted by the light source 110, and so that the second faces are positioned so as not to directly receive any light rays emitted by the light source.

[0061] The movable shutter element 120.4 is in the extreme low position along the Z axis. The light source 110 is configured and positioned so as not to emit any light rays towards the movable shutter element 120.4.

[0062] According to the invention, for at least one of the movable shutter elements 120.1, 120.2 and 120.3 having a first face 122 facing a second face 123 of another movable shutter element, the first face 122 comprises a reflective element, capable of reflecting at least a portion of the light rays coming from the light source 110 towards the second face 123 of the other movable shutter element, in one or more open positions. Thus, the second face 123 of the other movable shutter element is advantageously illuminated in one or more open positions, thus making the other movable shutter element visible to an observer outside the device, located in particular to the right of the device 100 in FIGS. 2a and 2b.

[0063] Preferably, for all the movable shutter elements 120.1, 120.2 and 120.3 having a first face 122 facing a second face 123 of another movable shutter element, the first face 122 comprises a reflective element, capable of returning light rays from the light source 110 towards the second face 123 of the other movable shutter element.

[0064] Thus, several movable shutter elements of the device 100 are made visible to an external observer.

[0065] The reflective element may be a mirror or a reflective paint arranged on the first face 122 of the movable shutter element. Preferably, the reflective element is only arranged on the first face 122 at a first end portion of the movable shutter element capable of being illuminated by the light source 110. In Figures 2a and 2b, the movable shutter element 120.1 comprises a first end portion 150.1, the movable shutter element 120.2 comprises a first end portion 150.2 and the movable shutter element 120.3 comprises a first end portion 150.3. Each first end portion of a movable shutter element may have a shape defined as a function of the position of the light source 110 and the position and geometry of the second face 123 of the other movable shutter element towards which the light rays are reflected.

[0066] Alternatively, instead of being arranged on the first face of the first end of a movable shutter element, the mirror is aligned with the first face of the first end portion, adjacent to the movable shutter element. In this case, the reflecting element may correspond to references 150.1 to 150.3.

[0067] To the extent that the second face 123 of the movable shutter element 120.1 is arranged so as not to directly receive light rays from the light source, the frame 140 may comprise a further reflective element 151 positioned so as to receive light rays directly from the light source 110 and to reflect at least a portion of the light rays towards the second face 123 of the movable shutter element 120.1

[0068] Thus, all movable shutter elements 120.1 to 120.4 can be made visible.

[0069] When several light sources 112 are distributed at several Y positions in the width of the device 100, several reflective elements can be provided on each movable shutter element 120.1, 120.2 and 120.3, as well as several reflective elements 151, at several Y positions. Alternatively, for each movable shutter element, the reflective element extends continuously across the entire width of the movable shutter element, just as the reflective element 151 can extend across this same width.

[0070] With reference to the, in the closed position, no light ray from the light source 110 exits the device 100. Advantageously, the control element 115 can turn off the light source 110 when the movable shutter elements 120.1 to 120.4 are in the closed position.

[0071] This is a side view, in the XZ plane, of a device according to a second embodiment, in a given configuration, corresponding to an intermediate opening position of the movable closure elements 120.1 to 120.4.

[0072] The intermediate opening position configuration is given for illustrative purposes only. It should be noted that the second embodiment can be implemented in the case where the movable shutter elements can only occupy the two positions of closure and maximum opening described with reference to Figures 2a and 2b.

[0073] According to the second embodiment, the light source 110 comprises several light elements, in particular several electroluminescent elements, at the same longitudinal position in Y, each electroluminescent element being arranged so as to emit light rays towards only one of the reflective elements, that is to say either towards the element 151, or towards the reflective element of the first end part 150.1, or towards the reflective element of the first end part 150.2, or towards the reflective element of the first end part 150.3.

[0074] Preferably, the light source comprises as many electroluminescent elements at the same Y position as the device 100 comprises movable shutter elements. In the example illustrated in the, the light source 110 can thus comprise four electroluminescent elements 112.1, 112.2, 112.3 and 112.4.

[0075] Thus, in the second embodiment, the electroluminescent elements have greater directivity than in the first embodiment. In particular, the cone of light emitted by each light source may have an angle of a few degrees, in particular less than 10°, or even 5°, or even 3°.

[0076] The second embodiment thus allows better light output compared to the first embodiment, the electroluminescent elements 112.1 to 112.4 being able to be less powerful than the electroluminescent element 112 of the first embodiment.

[0077] According to the second embodiment, the light source may comprise N light-emitting elements for each Y-position, and the light-emitting elements thus form a matrix of light-emitting elements, N being greater than or equal to 2. Alternatively, the light source 110 may comprise N light-emitting elements at a single Y-position.

[0078] According to the second embodiment, the electroluminescent elements can be replaced by individual light sources distributed in a matrix.

[0079] High directivity of the light beams emitted by the electroluminescent elements 112.1 to 112.4 can be achieved by the intrinsic characteristics of the electroluminescent elements 112.1 to 112.4 and / or by the addition of respective collimators 113.1 to 113.4.

[0080] Presents a light source 110 of a device 100 according to the second embodiment.

[0081] The light source 110 of the can thus be included in the device 100 illustrated in the.

[0082] According to the second embodiment, the electroluminescent elements 112.1 to 112.4 may have:- different orientations; and / or- different Z positions.

[0083] For this purpose, the PCB 111, or more generally the substrate or support on which the electroluminescent elements 112.1 to 112.4 rest, may have a non-planar face 401 on which the electroluminescent elements are arranged. The face 401 is thus shaped so as to define different orientations and / or different Z and X positions for the electroluminescent elements 112.1 to 112.4. The orientations and the Z and X positions may be defined from one or more parameters, such as: - the distance from the reflective element associated with each electroluminescent element; - the geometric characteristics of the reflective elements and the movable shutter elements 120.1 to 120.4; - the optical characteristics of the electroluminescent elements 112.1 to 112.4; and / or- the optical characteristics of collimators 113.1 to 113.4.

[0084] In particular, such parameters can be optimized according to design criteria, for example the homogeneity of the illumination of the different movable shutter elements 120.1 to 120.4.

[0085] Figures 5a to 5c show a side view of a device 100 for a motor vehicle according to a third embodiment, in several different configurations.

[0086] The configuration of corresponds to maximum opening positions of the movable closure elements 120.1 to 120.4, while figures 5b and 5c correspond to intermediate, or partial, opening positions of the movable closure elements 120.1 to 120.4. No restriction is attached to the number of intermediate opening positions.

[0087] The light source 110 of the third embodiment comprises four light-emitting elements per Y position, as for the second embodiment. However, the light source 110 according to the third embodiment is movable. The third embodiment can thus be considered as complementary to the first embodiment.

[0088] The characteristics detailed below with reference to Figures 5a to 5c also apply to a light source 110 comprising a single electroluminescent element per Y position, like the light source 110 of the first embodiment of Figures 2a and 2b. However, in the third embodiment, the light source 110 is furthermore movable. The third embodiment can thus be considered as complementary to the second embodiment as well.

[0089] In the first configuration, the light source 110 is in a first position 500. In the second configuration, the light source 110 is in a second position 501. In the third configuration, the light source is in a third position 502.

[0090] The three positions 500 to 502 can vary by their X positions, their Z positions as well as by their inclinations relative to the Y axis, as shown in Figures 5a to 5c.

[0091] Generally, the trajectory formed by the positions 500 to 502 may be a linear function or a non-linear function of the trajectory formed by the positions of the movable shutter elements 120.1 to 120.4. Preferably, a non-linear function may be provided because any trajectory can then be obtained for the light source 110, which makes it possible to optimize the trajectory of the light source 110 as a function of the geometry and the respective arrangements of the movable shutter elements, as well as the position and the inclination of the light-emitting elements of the light source 110 on the substrate 111.

[0092] The function connecting the trajectory is defined by the second transmission element 133 illustrated in the.

[0093] In order to define a non-linear function, the transmission element can be a connecting rod-crank device or a camshaft. The operating principle of such mechanical elements is well known and is not detailed further in this description.

[0094] This improves the illumination of the movable shutter elements in several intermediate opening positions. In particular, uniform illumination of the movable shutter elements in all opening positions.

[0095] The present invention is not limited to the embodiments described above as examples; it extends to other variants.

Claims

Device (100) for a motor vehicle comprising:- at least two movable closure elements (120.1 – 120.4), each movable closure element comprising a first face (122) and a second face (123);- an actuator (130) capable of moving said at least two movable closure elements into a closed position of the device and into at least one open position of the device;- at least one light source (110) arranged so as to emit light rays towards at least one movable closure element, the first face of which is arranged opposite a second face of another movable closure element in the at least one open position;in which the at least one movable closure element towards which the light rays of said at least one source are emitted, is integral with a reflective element (150.1-150.3) capable of reflecting at least part of the light rays emitted towards the second face of the other movable shutter element, in the at least one open position. Device (100) according to one of the preceding claims, comprising at least two reflective elements (150.1-150.3; 151) arranged to return a portion of the light rays from the at least one light source (110) towards at least two respective second faces (123) of two movable shutter elements (120.1-120.4). Device according to claim 2, wherein said at least one light source (110) comprises at least one light element (112; 112.1-112.4) capable of and arranged to emit light rays towards said at least two reflective elements (150.1-150.3; 151). Device according to claim 2, wherein said at least one light source (110) comprises at least two light elements (112.1-112.4), each light element being capable of and arranged to emit light rays towards only one of the at least two reflective elements (150.1-150.3; 151). Device according to one of the preceding claims, wherein the movable shutter elements (120.1-120.4) extend longitudinally in a first direction, wherein said at least one light source (110) extends longitudinally in the first direction, and wherein said at least one light source comprises for each longitudinal position among a set of longitudinal positions in the first direction, at least one light element (112; 112.1-112.4). Device according to claims 4 and 5, wherein for each longitudinal position, the device comprises N reflective elements (150.1-150.3; 151) and the light source comprises N light elements (120.1-120.4), each light element being capable of emitting light rays towards one of the N reflective elements only, N being greater than or equal to 2. Device according to claim 6, wherein, for each longitudinal position, the light elements (120.1-120.4) are arranged on a face (401) of the same support (111), wherein the face of the support is shaped so as to define respective inclinations of the light elements and / or respective positions of the light elements along a first axis perpendicular to a longitudinal axis and along a second axis perpendicular to the longitudinal axis, the first axis and the second axis being perpendicular to each other; wherein the respective inclinations and / or the positions along the first and second axes perpendicular to the longitudinal axis are different for at least two reflective elements (150.1-150.3; 151) among the N reflective elements. Device according to one of the preceding claims, further comprising a frame (140) and a reflective element (151) fixed on said frame, in which said at least one light source (110) is capable of emitting light rays towards the reflective element fixed on said frame, and the reflective element fixed on the frame is capable of reflecting at least a portion of the light rays towards a second face (123) of a movable closure element (120.1) the second face of which is not opposite any first face of another movable closure element. Device according to one of the preceding claims, wherein the actuator (130) is capable of generating a mechanical force in order to move said movable shutter elements (120.1-120.4), wherein the device (100) further comprises a mechanical element (133) capable of transmitting the mechanical force generated by the actuator to said at least one light source (110). Device according to claim 9, wherein the mechanical element (133) is a camshaft capable of converting the mechanical force of the actuator (130) into a trajectory of the light source (110) by a non-linear function.

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