Patent Grant
12092277
The invention relates to a set of lighting components with a connection system for lighting components, such as used in particular in event lighting technology, which can be grouped into a cluster by the connection system. Furthermore, the invention relates to a lighting device suitable therefor, which can achieve stroboscope-like lighting effects.
For the illumination of events, such as theatres, stage shows or other events, professional lighting technology is often used to create a lighting composition for the room to be illuminated, often in accordance with a stage show changing and matching to the stage show. For this purpose, various lighting components are arranged at suitable points in the room and correspondingly controlled as required. Used lighting components are for example spotlights, floodlights, blinders, strobes, area lights and the like, also in various combinations.
By means of the arrangement of several, possibly different lighting effects, on the one hand the room can be illuminated in desired color tones and brightness, also variable in time, and on the other hand targeted, e.g. short-term, light effects can be set. Thus, at suitable times, in addition to the light composition appearing, for example, in darker colors, targeted dazzling/glare effects can be set by means of one or more blinders and/or bright and fast flashes can be generated by means of stroboscopes, and thus the attention of the audience can be directed by the lighting effects to a particular scene or a partial area of the room, etc.
The lighting components themselves can have a suitable construction depending on the requirements, e.g. they can be equipped with LEDs in matrix or row form, use halogen lamps, be constructed in PAR design, etc. In particular, stroboscopes with a central flash tube are often used for this purpose. A stroboscope emits light flashes at specific, often regular intervals. The flash duration is less than 5 ms, the frequency of the flashes is for example between 0.5 and 100 Hz. Such stroboscope-like lighting devices, traditionally provided by means of Xenon flash lamps, are also imitated by the use of LEDs (light-emitting diodes), in that the LEDs emit white light.
It is further known to combine stroboscope lighting devices with colored lighting means. An example of a lighting device that can be varied in a light spectrum and thus can be used for colored stage illumination and as a stroboscope at the same time is described in DE 2020 170 050 50 U1. However, the lighting device described there cannot be used flexibly, in particular for creating large-area lighting patterns or images.
In general, the various lighting components are usually installed separately from each other in the room, e.g. on suitable fixtures, usually requiring one fixture per lighting component. However, it is often desirable, for practical or aesthetic reasons or for creating large-scale lighting patterns or lighting images, to arrange several identical or different lighting components together so that they form a unit. Especially, when the lighting components are used for mobile applications, it is advantageous if they can be flexibly grouped and separated again as required, depending on the intended purpose.
It is an object of the invention to provide a set of lighting components with a connection system which allows flexible and easy grouping of lighting components into a unit. Furthermore, the connection system shall be such that a modification of the groupings as required is possible without great effort. It is further an object of the invention to provide a lighting device which is suitable for providing large area lighting patterns or lighting images by combination with other lighting devices and which can also be used for stroboscopic effects as required.
This object is solved with a set of lighting components with a connection system between the lighting components according to the features of claim 1. A lighting device according to the invention is defined in claim 11. Preferred embodiments are given in the dependent claims.
The invention is based on the idea of providing a part of a connecting mechanism on each lighting component itself of the set of lighting components, so that the lighting components of the set can be directly connected to each other, without interposing a fixture or the like. In this way, an arrangement of lighting components (cluster) can be provided which in themselves have a uniform overall appearance. Preferably, the lighting components are adapted to each other in their shape, e.g. in that all lighting components are block shaped or cuboid and their side surfaces, to which they can be connected, i.e. which form the connecting surfaces to an adjacent lighting component, are each an integral multiple of each other in their dimensions, in particular length and/or width.
In particular, a set of lighting components includes a first lighting component having a first connecting surface of the first lighting component and a second lighting component having a first connecting surface of the second lighting component. A first connecting member of a connecting mechanism is provided on the first connecting surface of the first lighting component, and a second connecting member of a connecting mechanism is provided on the first connecting surface of the second lighting component. The second connecting element of a connecting mechanism is complementary to the first connecting element of the connecting mechanism, so that the first lighting component can be detachably connected to the second lighting component by detachably connecting the first connecting element to the second connecting element. By further providing a guiding and positioning mechanism in addition to the actual connecting mechanism that firmly connects and locks lighting components to each other, the lighting components to be connected to each other can be pre-positioned and pre-connected to each other. Such pre-positioning and pre-connecting not only allows the lighting components to be aligned with each other in their mounting position and thus the mounting can be done more easily, e.g. also in unfavorable positions or positions, but also that the pre-connection, if chosen appropriately, e.g. by means of sufficiently strong magnets, ensures that the lighting components hold their position during the mounting, e.g. also against gravity, in case of overhead mounting.
The first lighting component and the second lighting component each additionally have an element of a guiding and positioning mechanism on their connecting surface for pre-positioning and pre-connecting the first and second lighting components. For example, the element of the guiding and positioning mechanism of the first lighting component may be a first magnetic element (south pole) and the element of the guiding and positioning mechanism of the second lighting component may be a second magnetic element (north pole) attractable thereto. If, for example, the second lighting component is to be attached to the first lighting component from below, the guiding and positioning mechanism can be used, e.g. if sufficiently strong magnetic elements are selected, to make a pre-attachment before the lighting components are locked together by means of the connecting mechanism. Preferably, the pre-connection is so reliable and strong that during assembly and disassembly the lighting components are held together without further fastening means, at least temporarily.
The number of lighting components in a set is not limited to the number of two. Rather, the set can have any number of lighting components of the same or different types.
Providing each of the first and second connecting elements on a connecting surface also includes arrangements in which the connecting elements are not directly attached to the surface itself, which may be formed by a non-load bearing housing cover, for example. Rather, this includes arrangements in which the connecting elements are attached to the lighting component itself in close proximity to these connecting surfaces. For example, one of the connecting elements may be recessed into the interior of the housing of the lighting component relative to a connecting surface formed by a housing cover, and the other of the connecting elements may protrude or at least be placed in a projecting position relative to the connecting surface.
Complementary connection elements between the first and second connection elements include any connection solution, for example force-locking (frictional locking) and/or interlocking (positive locking), in which a first element of a connecting mechanism can be engaged with a second element of a connecting mechanism to connect the two elements together.
According to a preferred embodiment, the first connecting surface of the first lighting component and the first connecting surface of the second lighting component are complementarily shaped. For example, the connecting surfaces can both be shaped as a plane, in particular the side surface of a cuboid, or one of the connecting surfaces is concave and the other is correspondingly convexly curved thereto. This enables a uniform, harmonious appearance when several lighting components are arranged as a group or cluster.
Preferably, one or more lighting components of the set are provided with a plurality of connecting surfaces, and further preferably, the different connecting surfaces comprise partially the first element of the connecting mechanism and partially the second element of the connecting mechanism.
In particular, in the set, the first lighting component further comprises, in addition to the first connecting surface with the first element of the connecting mechanism, a second connecting surface on which a second element of a connecting mechanism is provided. This allows a quasi-infinite continuation of the grouping of multiple or a plurality of lighting components, particularly when the connecting surfaces are each consistent, i.e., appropriately shaped and sized, i.e., either shaped the same size or in integer multiples.
When arranging several connecting surfaces on a lighting component and corresponding connecting elements, it is particularly preferred if the second connecting surface of the first lighting component is located opposite the first connecting surface of the first lighting component, in particular if the lighting component itself is shaped as a cuboid. If then opposite surfaces, i.e. opposite side surfaces of the cuboid are used as connecting surfaces with the corresponding connecting elements, a group with a uniform appearance can be created by any combination and arrangement of different lighting components, which can be set up together as a group or attached to a suspension.
Alternatively or additionally, the second lighting component in particular further comprises a second connecting surface at which a first element of a connecting mechanism is provided. Preferably, the second connecting surface of the second lighting component is located opposite the first connecting surface of the second lighting component.
To further increase the flexibility in arranging the lighting components of the set against each other, it is particularly preferred if both a first element of a connecting mechanism and a second element of a connecting mechanism are provided on the first connection surface and/or on the second connection surface. In this way, the connection surface with the corresponding connection element can be flexibly used as required by selecting the first or the second connection element as required.
In a particularly preferred embodiment, the first lighting component and the second lighting component are cuboid-shaped and a first connecting element and/or a second connecting element is provided on all four side surfaces of at least one of the first or second lighting components, respectively. This also provides very flexible possibilities in terms of combination options for arranging multiple lighting components.
With regard to the connecting mechanism, it is preferred if one of the first and second connection elements is provided as a member protruding from the connection surface and having a shape that can form a positive lock with the shape of the other of the first and second connection elements, wherein said connection element being recessed with respect to the connection surface. E.g., said connecting element may be housed inside a housing and may be accessible through an opening in the connecting surface, so that the protruding connecting element, when placed in a position protruding from the connecting surface, may be engaged with the second connecting element inside the housing. For example, the first connecting element is provided as a hook element and the second connecting element is provided as a bolt element, or vice versa.
In this case, for example, the hook element can be brought into the position protruding from the connection surface by means of a rotating mechanism, i.e. the user operates a handle element for rotation and thereby rotates the connection element out of the housing of the lighting component into the position protruding from the connection surface, in which it can lock or engage with the other connection element on the other lighting component when the latter is set back, for example, relative to the housing of the other lighting component.
The first and/or the second lighting component of the set or the several lighting components of the set can each be a blinder, a spotlight, a floodlight, a stroboscope, an area light, an area spotlight or a couplable loudspeaker. Several identical lighting components or different lighting components can form a set as require.
Particularly preferred as a lighting component is a lighting device which can be used simultaneously as stroboscopic illumination and as area illumination, in particular in combination with several similar such lighting devices. Such a lighting device comprises a plurality of first lighting elements adapted to emit light in a fixed first light spectrum and a plurality of second lighting elements adapted to emit light in a variable light spectrum, wherein the first lighting elements and the second lighting elements are arranged in at least two rows of first lighting elements and at least two rows of second lighting elements, respectively, wherein at least a part of the rows of first lighting elements is arranged as a single row.
Thus a lighting device is provided, which can be used on the one hand for stroboscope effects for e.g. stage lighting and on the other hand also for colored lighting effects, wherein the lighting device is designed for both stroboscope effects and color lighting in such a way that different lighting patterns can be generated both in the context of the individual lighting device and by combination of several lighting devices to a set. In particular, the lighting device is characterized by the fact that those lighting elements which generate stroboscope effects are not only provided as a strip in a central area of the lighting device as in the case of a classical stroboscope, but rather are arranged in a special distribution on the surface of the lighting device.
In such a lighting device, the lighting elements are generally arranged in rows on a substantially two-dimensional surface at regular intervals from one another at least in one direction of the surface. That is, both the first and second lighting elements are arranged in respective rows of first lighting elements and rows of second lighting elements. In the direction perpendicular to these rows, the lighting components may also be arranged at the same distances as the lighting elements of a single row from each other, or larger distances may be provided between adjacent rows. Within a row, either first lighting elements or second lighting elements are provided and the lighting elements are not mixed. By this arrangement of the first and the second lighting elements, in addition to at least two line-shaped or strip-shaped stroboscope-like light effects, a colored illumination can also be generated by means of the second lighting elements, to which no fixed light spectrum is assigned.
That the first lighting elements are arranged in a single row of first lighting elements means that the arrangement is interrupted in the direction perpendicular to the direction of the row by rows of second lighting elements and/or that two rows of first lighting elements are spaced apart from each other to such an extent that when lighted the row appears as a single line and does not merge with an adjacent row. For example, the distance between two rows is chosen to be greater than the distance between two lighting elements of a row, or a row is omitted. On the other hand, in addition to the row or rows of first lighting elements arranged as a single row, a block of multiple rows of first lighting elements may be formed to achieve the effect of a wider strip of illumination. The first and second lighting elements may all be arranged on a common panel, or a plurality of panels may be provided, each carrying first lighting elements or second lighting elements or combinations of first and second lighting elements.
Providing at least four rows of lighting elements, namely at least two rows of first lighting elements and two rows of second lighting elements, results in a high flexibility for achieving different lighting effects, i.e. any combination of lighting elements can be controlled simultaneously or sequentially and thus different light patterns can be achieved.
According to a preferred embodiment, the fixed first light spectrum of the first lighting component is white, preferably cold-white. This serves to achieve a stroboscope effect by means of the first lighting elements. If several rows of first lighting elements with a white light spectrum are provided immediately adjacent to each other in an area of the lighting device, when they are driven together for illumination, they achieve a striped or tubular effect that can be perceived as a stroboscope effect if the duration of operation is short enough, e.g. below 5 ms, so that the lighting up in white or cold-white is perceived as a white flash. By using white lighting elements, the energy density required for stroboscopic effects can be achieved (in contrast to lighting elements that are variable in their spectrum, which can also produce white light, among other things). Furthermore, the classic stroboscope effect is achieved with white light. Preferably, the variable light spectrum of the second lighting elements is an RGB light spectrum. Preferably, the lighting elements can be varied in the emitted color, i.e. the emitted light, depending on their control, and thus various lighting effects can be achieved.
According to a preferred embodiment, the first and second lighting elements are each LEDs. This allows the arrangement of all lighting elements on a common panel, if desired. In addition, the use of LEDs makes sense from a thermal point of view and with regard to energy consumption, since they emit little heat at relatively high light energy and low power consumption.
Preferably, the rows of first lighting elements arranged as a single row are each covered with an elliptical lens. This imitates the appearance of the illumination of conventional, traditional Xenon bulbs.
Preferably, at least three rows of first lighting components are provided, and a portion of the rows of first lighting elements is grouped into a group of first lighting elements having at least two immediately adjacent rows of first lighting components. For example, if three rows of first lighting elements are provided, a group of two rows of first lighting elements is provided in addition to the one row of first lighting elements arranged as a single row. Such grouped rows of first lighting elements can be provided in a particularly preferred manner as a single unit, controllable together, e.g. by being arranged on a single, common carrier.
Preferably, several individual rows of first lighting elements are provided. In particular, if these individual rows are arranged symmetrically to an axis of symmetry of the lighting device extending in the direction of the rows, have equal distances to each other, and further, in particular to the edge of the lighting device, the outermost of the individual rows each have half of this distance, a variety of patterns, symbols, graphics, etc. can be displayed by combinations of several lighting devices and controls of the rows of first lighting elements or of partial areas of these rows.
Further preferably, this group of rows of first lighting elements or one of the groups of rows of first lighting elements is arranged in a central area of the lighting device, in a direction perpendicular to the rows. Thus, a stroboscopic effect can be achieved particularly well with the central group of rows of first lighting elements when driven together, since these lighting elements merge into a strip. If this group is provided centrally on the lighting device, a combination of several lighting devices next to each other in the direction of the rows can imitate a continuous stroboscope line over several lighting devices, which also merge into an overall structure. By combining several lighting devices side by side in the direction perpendicular to the rows, the central position of the group on each of the illumination devices can, for example, create a uniform stripe pattern.
In a particularly preferred example, a central group of five rows of first lighting elements is provided. These rows of the central group of first lighting elements can be provided in a particularly preferred manner on a single, common LED carrier and jointly controllable. Such a grouping of several rows of first lighting elements has the advantage and the effect that a relatively high output power can be achieved on a very compact area. Thus, a high luminosity and brightness can be achieved. Adjacent to this group in the direction perpendicular to the rows, a single row of first lighting elements, a group of five rows of second lighting elements and a further single row of first lighting elements are provided on each side, axisymmetric to an axis of symmetry extending along the central row. This means that a large number of patterns, graphics, etc. can be produced both with a single lighting device and with a combination of several lighting devices.
If rows of first lighting elements are arranged as a group, they are preferably covered with a common elliptical lens so that the effect of a Xenon tube is achieved and imitated.
Preferably, the lighting elements of the group of first lighting elements and/or the lighting elements of the individual rows of first lighting elements are grouped in the direction along the longitudinal direction of the rows into several segments that can be controlled separately from each other. It is particularly preferred if at least the individual rows of first lighting elements are provided as in several separately controllable segments, e.g. 12 segments. For example, 6 or 12 separately controllable segments can be provided along a row. This further increases flexibility and the ability to display a variety of patterns, shapes and graphics.
Preferably, at least some of the rows of second lighting elements are grouped into a group of second lighting elements with at least two directly adjacent rows of second lighting elements. Thus, different color patterns can be achieved.
Preferably, the lighting elements of the group of second lighting elements are grouped in the direction along the longitudinal direction of the rows into several separately controllable segments. For example, 6 or 12 separately controllable segments can be provided along a row. This further increases flexibility and the ability to display a variety of patterns, shapes and graphics.
Preferably, the lighting device further comprises a controller device for controlling the lighting elements or the groups or segments of lighting elements.
Other objects and features of the present invention will become apparent from the following detailed description considered in conjunction with the accompanying drawings. It is to be understood, however, that the drawings are designed solely for purposes of illustration and not as a definition of the limits of the invention, for which reference should be made to the appended claims. It should be further understood that the drawings are not necessarily drawn to scale and that, unless otherwise indicated, they are merely intended to conceptually illustrate the structures and procedures described herein.
In the following, the invention is described by way of example with reference to the attached figures, in which:
The set 100 of lighting components shown in
In the set 100 of
The embodiment shown in
Finally,
The lighting components described with respect to
In the following, the connecting mechanism 50 is described with reference to
On each of the side surfaces 40, 41, 42, 43 of the blinders 10, 11, a mounting socket 70 is provided centrally, at the area center, to which additional elements, such as a bracket 15 (shown in
Alternatively, instead of providing a separate mounting socket 70, a bracket 15 or the like could also be attached to the set 100 of lighting components by means of the connecting mechanism 50, as shown in
In the embodiment shown in
In the following, the connecting mechanism 50 between the blinders 10, 11 is described by means of the connecting mechanism 50 attached to the side surfaces 40, 42.
Each blinder 10, 11 has a housing 30, 31 for covering. In
On the side surface 40 of the blinder 10, which corresponds to the first connection surface of the first lighting component, openings 33 or recesses are provided in the housing which allow the first connection elements 52 of the connecting mechanism 50 to pass through them and to engage with the second connection elements 54 of the connecting mechanism 50. According to the shown embodiment, two openings 33 are provided on each side surface 40 in a central position in the depth direction of the side surface 40 and axially symmetrical with respect to a central axis in the longitudinal direction. Inside the housing 30 of the blinder 10, bolts 54 are arranged as second connection elements.
Likewise, corresponding openings 33 are provided at identical positions in the housing 31 on the side surface 42 of the blinder 11 corresponding to the first connecting surface of the second lighting component. The hook elements 52 attached to the blinder 11 as first connection elements can be rotated out through these openings 33 by means of a corresponding rotation mechanism or, when not in use, can be rotated back into the housing 31.
As can be seen in
If required, additional stops (stop elements) can be provided to facilitate positioning.
Instead of the shown guiding grooves 34 and guiding projections 35, the guiding and positioning elements can be configured exclusively as magnets or also in other forms. Furthermore, guiding and positioning elements can be provided on both connecting surfaces 40, 42, e.g. as guiding grooves and guiding projections, or alternatively a guiding projection can be provided on one connection surface and only a guiding groove on the other, i.e. each connection surface 40, 42 has only one of the mutually complementary guiding and positioning elements, e.g. in the case of magnets only a north or a south pole magnet.
To operate the connecting mechanism 50, rotary handles 60 are provided for moving the hook elements 52 in each case. One rotary handle is provided for each connection surface and associated connection element (hook element 52) or, if necessary, for several hook elements of the same connection surface together. In
A locking (not shown) may additionally be integrated in the rotating mechanism, which is actuated by the rotary handles 60, which presses the rotary handle into a locked position e.g. by spring action, so that the rotary handle 60 can only be actuated in case of pressure or pull against the biasing effect of such a spring and is otherwise locked, e.g. by a positive lock.
If two lighting components 10, 11 are to be connected to each other, the lighting components 10, 11 are first placed with their connecting surfaces 40, 42 lying one above the other by means of the guiding grooves 34 and guiding projections 35, as shown in
Then, as shown in
Since corresponding connecting mechanisms 50 and connecting surfaces 40, 41, 42, 43 are provided on all side surfaces of the cuboid shaped lighting components and matched to one another in size, as well as the connecting elements 50, 52 of the connecting mechanisms are matched to one another in size and position, it is possible to create arbitrarily continued arrangements (clusters) of lighting components which require only one common fastening or mounting in the room.
Particularly preferably, the set of lighting components (100) comprises two or more lighting devices 210 as described below with reference to
The lighting elements 220, 230 are formed by LEDs (light-emitting diodes) and can all be arranged on a single, common circuit board, or on several separate circuit boards (not shown).
As can best be seen from
The rows 220-1 to 220-9 or 230-1 to 230-10 are arranged symmetrically in the direction perpendicular to the direction of a row on the corresponding surface 251. In particular, according to the shown embodiment, the row 220-5 of first lighting elements 220 corresponds to the symmetry axis of the arrangement.
Of the nine rows of first lighting elements 220, five rows 220-3, 220-4, 220-5, 220-6 and 220-7 of first lighting elements are arranged centrally in the direction perpendicular to rows 220-1 to 220-9 and directly adjacent to each other, i.e. with a distance between two adjacent rows 220-3 to 220-7 substantially equal to the distance between two adjacent lighting elements 220 of a row. These rows 220-3 to 220-7 form a group 221 of first lighting elements 220. In the illustrated embodiment, this group 221 of first lighting elements 220 is formed on a common carrier and can only be controlled together. I.e. this group 221 of first lighting elements 220 is formed as a unit and is not controllable as individual rows. Alternatively, several, e.g. five, in principle separately from each other, but also together, controllable rows of first lighting elements could be accordingly arranged as a group and closely spaced.
Four rows 220-1, 220-2, 220-8, 220-9 of first lighting elements 220 are arranged as individual rows, i.e. on both sides their distance to an adjacent row of first lighting elements 220 is significantly greater than the distance between two lighting elements 220 of a row and/or they are adjacent to rows of second lighting elements 230 and/or they are positioned as at the edge of the overall arrangement. For example, rows 220-1 and 220-9 are positioned at the edge and are each adjacent to rows 230-1 and 230-10 of second lighting elements, respectively, on their other side. Rows 220-2 and 220-8 of first lighting elements are adjacent to rows 230-5 and 230-6 of second lighting elements, respectively, on one side and are significantly spaced from rows 220-3 and 220-7 of first lighting elements, respectively, on the other side.
The second lighting elements 230 are arranged in two groups 231, 232 of second lighting elements each having five rows 230-1 to 230-5 and 230-6 to 30-210, i.e., adjacent rows of second lighting elements are the same distance apart as the lighting elements 230 of the row are from each other.
Overall, as viewed from an edge, rows 220-1 to 220-9 and 230-1 to 230-10 of lighting elements 220, 230 are arranged as follows: a single row 220-1 of first lighting elements, a group 231 of five rows 230-1 to 230-5 of second lighting elements, a single row 220-2 of first lighting elements, the central group 221 of first lighting elements comprising five rows 220-3 to 220-7 of first lighting elements 220 which can only be controlled together, a single row 220-8 of first lighting elements, a group 232 of five rows 230-6 to 230-10 of second lighting elements, and a single row 220-9 of first lighting elements. In each case, the spacing of the single rows 220-1 and 220-2 of first lighting elements, the spacing of the single rows 220-2 and 220-8 of first lighting elements, and the spacing of the single rows 220-8 and 220-9 of first lighting elements are identically selected. The distance of the rows 220-1 and 220-9 of first lighting elements from the edge of the lighting device 210 is half the distance of the individual rows 220-2 and 220-8 of first lighting elements, for example. This serves to ensure that when two lighting devices 210 are combined, the distance from an outer row 220-1 of one lighting device 210 to the outer row 220-9 of the other lighting device 210 is the same as, for example, the distance between the individual rows 220-2 and 220-8 of first lighting elements of a single lighting device 210, and thus multiple lighting devices 210 can be seamlessly combined even in the direction perpendicular to the direction of the rows of first lighting elements.
As shown in
Finally,
Corresponding patterns can also be achieved by means of the rows of second lighting elements 230-1 to 230-10.
Thus, when using lighting devices 210 in a set 100, stroboscopic effects can be achieved as well as white and colored light patterns. Due to the equal distance of the individual LED lines to each other, continuous effects can be displayed over several devices. In this way, the devices merge into a big picture in both horizontal and vertical orientation.
Thus, while there have shown and described and pointed out fundamental novel features of the invention as applied to a preferred embodiment thereof, it will be understood that various omissions and substitutions and changes in the form and details of the devices illustrated, and in their operation, may be made by those skilled in the art without departing from the spirit of the invention. For example, it is expressly intended that all combinations of those elements and/or method steps which perform substantially the same function in substantially the same way to achieve the same results are within the scope of the invention. Moreover, it should be recognized that structures and/or elements and/or method steps shown and/or described in connection with any disclosed form or embodiment of the invention may be incorporated in any other disclosed or described or suggested form or embodiment as a general matter of design choice. It is the intention, therefore, to be limited only as indicated by the scope of the claims appended hereto.
| Number | Date | Country | Kind |
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| 10 2022 117 390.9 | Jul 2022 | DE | national |
| 10 2023 103 124.4 | Feb 2023 | DE | national |
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