Device comprising illuminated movable shutter element

Abstract

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

Description

[0001] The present invention relates to the field of illuminated shutter elements for devices for motor vehicles. More particularly, the invention relates to a device capable of illuminating its shutter elements and thus making them visible.

[0002] This is particularly advantageous if the device performs a thermal function in the vehicle, such as ventilating / cooling components located behind the frame of a shutter arrangement.

[0003] Devices for motor vehicles are known that include movable shutter elements that can be moved between an open position and a closed position to selectively allow airflow through, thereby cooling components located behind the device, such as the vehicle's engine. Such devices are known as active grille shutters (AGS). Devices for ventilating the interior of a vehicle also include movable shutter elements that can be moved to allow or prevent airflow toward the interior of the vehicle.

[0004] However, such a device is not illuminated so as to enable the shutter element to be visible, in particular in order to determine whether the shutter element is in the open or closed position.

[0005] Furthermore, the fact that the shutter elements are movable and can assume several partially open positions makes it difficult to illuminate them.

[0006] Therefore, there is a need for an illumination of a movable shutter element of an apparatus for a motor vehicle that takes into account the movement of the movable shutter element, that is adapted to the shape of the movable shutter element, that requires minimal structural modifications to the apparatus, and that takes into account the inherent weight constraints of motor vehicles. Furthermore, it is preferred that the illumination of the movable shutter element is uniform.

[0007] To this end, a first aspect of the invention relates to a device for a motor vehicle, comprising: - at least two movable shutter elements, each movable shutter element comprising a first face and a second face; - an actuator capable of moving the at least two movable shutter elements into a closed position of the device and into at least one open position of the device; at least one light source arranged to emit light towards at least one movable shutter element in the at least one open position, a first face of the at least one movable shutter element being arranged to face a second face of another movable shutter element; wherein the at least one movable shutter element towards which light from the at least one source is emitted is integral with a reflective element capable of reflecting at least some of the emitted light towards a 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 constrained to move along with the movable shutter element. This enables dynamic lighting of the device for a motor vehicle. The reflective element can be obtained by treating the surface of the first face (e.g. by adding reflective paint) or can be an additional element, such as a reflector.

[0009] According to an embodiment, the arrangement may comprise at least two reflective elements arranged to reflect some of the light rays coming from the light source towards at least two respective second faces of the two movable shutter elements.

[0010] This enables the second faces of several movable shutter elements or even all movable shutter elements of the device to be illuminated, which improves the visibility of the device in the open position for an observer outside the device.

[0011] Furthermore, according to the first embodiment of the present invention, the at least one light source may include at least one light emitting element, which is capable of and arranged to emit light towards the at least two reflective elements.

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

[0013] In a variant, according to the second embodiment, the at least one light source may comprise at least two light emitting elements, each light emitting element being able to and arranged to emit light only towards one of the at least two reflective elements.

[0014] The use of dedicated light emitting elements provides better luminous efficacy than a shared source.In addition, lower power and therefore lower cost light emitting elements can be used.

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

[0016] This enables large movable shutter elements to be illuminated in a uniform manner.

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

[0018] This increases the luminous efficacy of the light source while uniformly illuminating the potentially large movable shutter elements.

[0019] In addition, for each longitudinal position, the light-emitting element can be arranged on a surface of a given support, and the shape of the surface of the support can be determined to define a corresponding inclination of the light-emitting element and / or a corresponding position of the light-emitting element along a first axis perpendicular to the longitudinal axis and a second axis perpendicular to the longitudinal axis, the first axis and the second axis being perpendicular to each other. For at least two of the N reflective elements, the corresponding inclination and / or the position along the first axis perpendicular to the longitudinal axis and the second axis can be different.

[0020] This optimizes the illumination of the movable shutter elements, inter alia, depending on the respective geometry and arrangement of the movable shutter elements and the position of the light sources.

[0021] According to an embodiment, the device may further include a frame and a reflective element fastened to the frame, the at least one light source may be capable of emitting light towards the reflective element fastened to the frame, and the reflective element fastened to the frame may be capable of reflecting at least some of the light towards a second side of the movable shutter element, the second side of the movable shutter element not facing any first side of the other movable shutter element.

[0022] This enables the illumination of the second side of the movable shutter element that is in the extreme position (eg the movable shutter element that is closest to the frame of the device).Thus, according to the invention, all movable shutter elements of the device can be illuminated.

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

[0024] Thus, the lighting of the movable shutter element can be adapted to its movement, which improves the lighting efficacy and also improves the uniformity of the lighting between different opening positions.

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

[0026] This optimizes the path of the light source depending on the successive open positions of the movable shutter element.

[0027] Other features and advantages of the present invention will become apparent upon review of the following detailed description and accompanying drawings, in which:

[0028] [ Figure 1 ] is a front view of an apparatus for a motor vehicle according to an embodiment of the present invention;

[0029] [ Figure 2a ] is a side view of the apparatus for a motor vehicle according to the first embodiment in a first configuration;

[0030] [ Figure 2b ] is a side view of the apparatus for a motor vehicle according to the first embodiment in a second configuration;

[0031] [ Figure 3 ] is a side view of an apparatus for a motor vehicle according to a second embodiment in a given configuration;

[0032] [ Figure 4 ] shows a light source for an apparatus for a motor vehicle according to a second embodiment of the present invention;

[0033] [ Figure 5a ] is a side view of an apparatus for a motor vehicle according to a third embodiment in a first configuration;

[0034] [ Figure 5b ] is a side view of the apparatus for a motor vehicle according to the third embodiment in a second configuration;

[0035] [ Figure 5c ] is a side view of an apparatus for a motor vehicle in a third configuration according to a third embodiment.

[0036] The present description focuses on features that distinguish this device from devices known in the art.

[0037] Figure 1 is a front view in plane YZ of a device 100 for a motor vehicle according to an embodiment of the invention.

[0038] The device 100 comprises at least one movable shutter element 120.1. Figure 1 In the embodiment of the present invention, for illustrative purposes, the device 100 is considered to include four movable shutter elements 120.1 to 120.4, which are movable between at least one open position and a closed position. Preferably, the movable shutter elements can be tilted between a closed position, at least one partially open position and a fully open position.

[0039] For example, the movable shutter element can be moved by transmitting a mechanical rotational force from a common shaft 131, which can be driven in a rotational sense by the actuator 130 about the axis Z. However, according to the present invention, any other rotational and / or translational movement can be provided to move the movable shutter element between various open and closed positions.

[0040] The actuator 130 can be electronically controlled by a control signal from a control element of the vehicle, such as a centralized electronic control unit (ECU). The control element can control the actuator 130 based on parameters evaluated from data from sensors in the vehicle. This allows the air flow entering through the opening created by the movable shutter element to be adapted to the vehicle's environment and / or its operation. In a variant, the actuator 130 can be manually activated by a user of the vehicle.

[0041] The mechanical force coming from the shaft 131 can be transmitted to the movable shutter elements 120.1 to 120.4 by means of the first mechanical transmission elements 132.1 to 132.4, in particular enabling a mechanical rotational force along the axis Z of the shaft 131 to be converted into a rotational force along the axis Y and / or a translational force along the axis Z and / or along the axis X. There are no restrictions associated with the rotational and / or translational movement applied to the movable shutter elements 120.1 to 120.4 in order to move them between the open position and the closed position.

[0042] Device 100 may be a shutter for an active grille of a vehicle, which can be positioned at the front of the vehicle and selectively allow airflow to cool components located at the front of the vehicle, particularly the engine. Alternatively, device 100 may be a shutter for interior ventilation of the vehicle, which can be manually or electronically actuated by a user of the vehicle. Generally, device 100 encompasses any device in a vehicle that performs a given function by moving at least two shutter elements between at least one open position and a closed position.

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

[0044] There are no restrictions related to the technology of the at least one light source 110. In the example given by way of illustration and described with reference to the accompanying drawings, the light source 110 comprises several electroluminescent elements 112, such as LEDs, which are distributed at several longitudinal positions along the axis Y of a support or substrate 111, which can advantageously be a printed circuit board (PCB). This distribution along the axis Y makes it possible to illuminate the entire width of the movable shutter elements 120.1 to 120.4. However, the present invention is also applicable to a light source 110 comprising a single light-emitting element (such as an electroluminescent element 112) which illuminates only a portion of the width of the movable shutter elements 120.1 to 120.4. As described below, the light source 110 can comprise several electroluminescent elements 112 for a given position on Y.

[0045] The electroluminescent elements 112 are advantageously mounted on a given PCB 110 in order to facilitate their installation in the device 100 and their control by a control unit 115. The control unit 115 may be dedicated to controlling the light source 110 or may perform another control function. The control unit 115 may be, for example, the aforementioned centralized control unit ECU.

[0046] In one variant, each electroluminescent element 112 is mounted on a dedicated printed circuit board. The control element 115 is then connected to all the dedicated printed circuit boards for the electroluminescent elements 112. In another variant, the electroluminescent elements are divided into a plurality of groups, and each group is mounted on a dedicated printed circuit board 111, thus forming several light sources 110.

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

[0048] The light source 110 may be fixed. In a variant, the light source 110 may be movable so that the position of the light source 110 is adapted to the movement of the movable shutter elements 120.1 to 120.4. To this end, 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 by means of a transmission shaft 131 and a second transmission element 133. The transmission element 133 may be capable of converting a rotational movement of the transmission shaft 131 about the axis Z linearly or nonlinearly into a movement of the light source 110 about the axis Y in a rotational sense and / or along the axis X and / or axis Z in a translational sense. Reference Figures 5a to 5c This variation in which the light source 110 is movable is described in detail.

[0049] The apparatus 100 may further include Figure 1Frame 140 is partially shown in FIG. Frame 140 may be fastened and partially surround at least some of the elements of device 100 that have been described above.

[0050] The frame 140 may include, inter alia, an upper surface that is Figure 1 . 1 . It is shown along the axis Z above the movable shutter element 120 . 1 .

[0051] Figure 2a is a side view in plane XZ of the device 100 for a motor vehicle according to the first embodiment in a first configuration.

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

[0053] In a first embodiment, the electroluminescent element 112 may be capable of emitting light with low directivity, i.e., emitting light in a wide range of directions. Specifically, the electroluminescent element 112 may be capable of emitting light toward all movable shutter elements 120.1 to 120.4. This low directivity may be achieved through the inherent properties of the electroluminescent element 112. However, the electroluminescent element 112 may be associated with a collimator 113 capable of generating a light cone sized to transmit light to all movable shutter elements 120.1 to 120.4.

[0054] exist Figure 2a In the fully open position, the movable shutter element extends substantially along the axis X so as to allow the air flow to flow substantially along the axis X. Figure 2a Cycle from right to left.

[0055] Figure 2b Shown according to Figure 2a The same arrangement of the first embodiment is shown, but in a second configuration corresponding to a closed position of the movable shutter elements 120 . 1 to 120 . 4 .

[0056] therefore, Figure 2a and Figure 2b The first embodiment is shown in two different configurations, corresponding to a fully open position of the movable shutter elements 120.1 to 120.4 and a closed position of the movable shutter elements 120.1 to 120.4, respectively.

[0057] As mentioned above, you can Figure 2a and Figure 2b Between the extreme positions intermediate open positions are defined for the movable shutter elements 120 . 1 to 120 . 4 .

[0058] Each movable shutter element 120.1 to 120.4 includes a first face 122 and a second face 123 opposite the first face. For at least one movable shutter element, when the movable shutter element is in an intermediate open position or a fully open position, the first face 122 may face the second face 123 of another movable element.

[0059] exist Figure 2a In the example considered, the first face 122 of the movable shutter element 120.3 faces the second face 123 of the movable shutter element 120.4, the first face 122 of the movable shutter element 120.2 faces the second face 123 of the movable shutter element 120.3, and the first face 122 of the movable shutter element 120.1 faces the second face 123 of the movable shutter element 120.2.

[0060] For the shutter elements 120.1, 120.2 and 120.3 whose first side 122 faces the second side 123 of another movable shutter element, the shape and arrangement of the movable shutter elements are determined so that the first side directly receives the light emitted by the light source 110 and so that the second side is positioned not to directly receive any light emitted by the light source.

[0061] The movable shutter element 120 . 4 is in an extreme lower position along the axis Z. The light source 110 is configured and positioned not to emit any light 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, whose first face 122 faces the second face 123 of the further movable shutter element, the first face 122 comprises a reflective element capable of reflecting at least some of the light from the light source 110 in one or more open positions towards the second face 123 of the further movable shutter element. Thus, the second face 123 of the further movable shutter element is advantageously illuminated in one or more open positions, thereby making the further movable shutter element visible to an observer outside the device, in particular located Figure 2a and Figure 2b on the right side of the device 100.

[0063] Preferably, for all movable shutter elements 120.1, 120.2 and 120.3 whose first face 122 faces the second face 123 of the further movable shutter element, the first face 122 comprises a reflective element capable of reflecting light from the light source 110 towards the second face 123 of the further movable shutter element.

[0064] Thus, the plurality of movable shutter elements of the device 100 are made visible to an outside 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 arranged only on the first face 122, at the first end portion of the movable shutter element which can be illuminated by the light source 110. Figure 2a and Figure 2b , movable shutter element 120.1 includes a first end portion 150.1, movable shutter element 120.2 includes a first end portion 150.2, and movable shutter element 120.3 includes a first end portion 150.3. Each first end portion of a movable shutter element may have a shape defined by the position of the light source 110 and the position and geometry of the second face 123 of the other movable shutter element toward which the light is reflected.

[0066] In a variant, instead of being arranged on the first face of the first end of the movable shutter element, the reflector is aligned with the first face of the first end portion, next to the movable shutter element. In this case, the reflective elements may correspond to reference numerals 150.1 to 150.3.

[0067] Because the second face 123 of the movable shutter element 120.1 is arranged not to directly receive light from the light source, the frame 140 may include a further reflective element 151 positioned to directly receive light from the light source 110 and to reflect at least some of the light 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 across the width of the device 100 at several positions on Y, several reflective elements may be provided on each movable shutter element 120.1, 120.2 and 120.3, and several reflective elements 151 are provided at several positions on Y. In a variant, for each movable shutter element, the reflective element extends continuously over the entire width of the movable shutter element, just as the reflective element 151 may extend over this same width.

[0070] refer to Figure 2b In the closed position, no light from the light source 110 leaves the device 100. Advantageously, the control element 115 may turn off the light source 110 when the movable shutter elements 120.1 to 120.4 are in the closed position.

[0071] Figure 3is a side view in plane XZ of the device according to the second embodiment in a given configuration corresponding to an intermediate open position of the movable shutter elements 120 . 1 to 120 . 4 .

[0072] This intermediate open position configuration is given for illustrative purposes only. It should be noted that the second embodiment may be used in which the movable shutter element may only occupy the reference position. Figure 2a and Figure 2b The description is implemented in the case of two positions (fully open position and closed position).

[0073] According to a second embodiment, the light source 110 comprises, at a given longitudinal position on Y, several light-emitting elements, in particular several electroluminescent elements, each electroluminescent element being arranged to emit light only towards one of the reflective elements, i.e. towards element 151, or towards the reflective element of the first end portion 150.1 or towards the reflective element of the first end portion 150.2 or towards the reflective element of the first end portion 150.3.

[0074] Preferably, the light source comprises as many electroluminescent elements at a given position on Y as the device 100 comprises movable shutter elements. Figure 3 In the example shown, the light source 110 may therefore comprise four electroluminescent elements 112 . 1 , 112 . 2 , 112 . 3 and 112 . 4 .

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

[0076] Therefore, the second embodiment provides better luminous efficacy compared to the first embodiment, and the electroluminescent elements 112 . 1 to 112 . 4 may be less powerful than the electroluminescent element 112 of the first embodiment.

[0077] According to a second embodiment, the light source may comprise N electroluminescent elements for each position on Y, and the electroluminescent elements thus form an electroluminescent element array, N being greater than or equal to 2. As a variant, the light source 110 may comprise N electroluminescent elements at a single position on Y.

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

[0079] A high directivity of the light beams emitted by the electroluminescent elements 112.1 to 112.4 can be achieved by intrinsic properties of the electroluminescent elements 112.1 to 112.4 and / or by adding corresponding collimators 113.1 to 113.4.

[0080] Figure 4 A light source 110 of a device 100 according to a second embodiment is shown.

[0081] therefore, Figure 4 The light source 110 may include Figure 3 In the device 100 shown.

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

[0083] To this end, 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 surface 401 on which the electroluminescent elements are arranged. The surface 401 is thus shaped so as to define different orientations and / or different positions of the electroluminescent elements 112.1 to 112.4 in Z and X. The orientations and positions in Z and X may be defined based on one or more parameters, such as: - the distance from the reflective element associated with each electroluminescent element; - Geometrical properties of the reflective elements and movable shutter elements 120.1 to 120.4; - optical properties of the electroluminescent elements 112.1 to 112.4; and / or - Optical properties of the collimators 113.1 to 113.4.

[0084] In particular, such parameters may be optimized according to design criteria, such as the uniformity of the illumination of the various movable shutter elements 120 . 1 to 120 . 4 .

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

[0086] Figure 5a The configuration in corresponds to the fully open position of the movable shutter elements 120.1 to 120.4, while Figure 5b and Figure 5c Corresponding to intermediate open positions or partially open positions of the movable shutter elements 120.1 to 120.4. There is no restriction with respect to the number of intermediate open positions.

[0087] The light source 110 of the third embodiment includes four electroluminescent elements at each position on Y, as in the second embodiment. However, the light source 110 according to the third embodiment is movable. Therefore, the third embodiment can be considered as a supplement to the first embodiment.

[0088] References below Figures 5a to 5c The detailed features also apply to the light source 110, which comprises a single electroluminescent element at each position on Y, similar to Figure 2a and Figure 2b However, in the third embodiment, the light source 110 is also movable. Therefore, the third embodiment can also be considered as a supplement to the second embodiment.

[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] like Figures 5a to 5c As shown, the three positions 500 to 502 may differ by their position in X, their position in Z and their inclination relative to the Y axis.

[0091] In general, the path formed by the positions 500 to 502 can be a linear function or a nonlinear function of the path formed by the positions of the movable shutter elements 120.1 to 120.4. Preferably, a nonlinear function can be used, since any path of the light source 110 can then be obtained, which makes it possible to optimize the path of the light source 110 according to the geometry and corresponding arrangement of the movable shutter elements and the position and inclination of the electroluminescent elements of the light source 110 on the substrate 111.

[0092] The function that connects the paths is given by Figure 1 The second transmission element 133 shown is defined.

[0093] In order to define the non-linear function, the transmission element may be a connecting rod crank arrangement or a camshaft. The operating principles of such mechanical elements are well known and will not be described in greater detail in this specification.

[0094] Thus, the illumination of the movable shutter element in several intermediate opening positions is improved. In particular, a uniform illumination of the movable shutter element in all opening positions is achieved.

[0095] The invention is not limited to the embodiments described above by way of example; the invention encompasses other variants.

Claims

1. A device (100) for a motor vehicle, comprising: - at least two movable shutter elements (120.1-120.4), each movable shutter element comprising a first face (122) and a second face (123); - an actuator (130) capable of moving the at least two movable shutter 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 to emit light in the at least one open position towards at least one movable shutter element, a first face of the at least one movable shutter element being arranged to face a second face of another movable shutter element; wherein the at least one movable shutter element towards which the light from the at least one source is emitted is integrated with a reflective element (150.1-150.3) capable of reflecting at least some of the emitted light towards a second face of another movable shutter element in the at least one open position.

2. The device (100) according to one of the preceding claims, comprising at least two reflecting elements (150.1-150.3; 151), said at least two reflecting elements being arranged to reflect some of said light coming from said at least one light source (110) towards at least two corresponding second faces (123) of two movable shutter elements (120.1-120.4).

3. The device according to claim 2, wherein The at least one light source (110) comprises at least one light emitting element (112; 112.1-112.4), the at least one light emitting element being capable of and arranged to face the at least two reflective elements (150.1-150.3; 151) emits light.

4. The device according to claim 2, wherein The at least one light source (110) comprises at least two light emitting elements (112.1-112.4), each light emitting element being capable of and arranged to emit light only towards one of the at least two reflective elements (150.1-150.3; 151).

5. The device according to claim 1, wherein: The movable shutter element (120.1-120.4) extends longitudinally in a first direction, wherein the at least one light source (110) extends longitudinally in the first direction, and wherein the at least one light source comprises at least one light emitting element (112; 112.1-112.4) for each longitudinal position in a set of longitudinal positions in the first direction.

6. The device as claimed in 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-emitting elements (120.1-120.4), each light-emitting element capable of emitting light only towards one of the N reflective elements, N being greater than or equal to 2.

7. The device according to claim 6, wherein For each longitudinal position, the light-emitting elements (120.1-120.4) are arranged on a face (401) of a given support (111), wherein the shape of the face of the support is determined so as to define a respective inclination of the light-emitting elements and / or a respective position of the light-emitting elements along a first axis perpendicular to the longitudinal axis and a second axis perpendicular to the longitudinal axis, the first axis and the second axis being perpendicular to each other; Therein, for at least two reflective elements (150.1-150.3; 151) of the N reflective elements, the respective inclinations and / or the positions along the first axis and the second axis perpendicular to the longitudinal axis are different.

8. The device according to one of the preceding claims, further comprising a frame (140) and a reflective element (151) fastened to the frame, wherein The at least one light source (110) is capable of emitting light towards the reflective element fastened to the frame, and the reflective element fastened to the frame is capable of reflecting at least some of the light towards a second face (123) of a movable shutter element (120.1), the second face of the movable shutter element not facing any first face of another movable shutter element.

9. The device according to any one of the preceding claims, wherein The actuator (130) is capable of generating a mechanical force to move the 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 the at least one light source (110).

10. The device according to claim 9, wherein The mechanical element (133) is a cam shaft capable of converting the mechanical force of the actuator (130) into the path of the light source (110) by means of a nonlinear function.

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