Optoelectronic camouflage system for adaptive adaptation to the surroundings

Abstract

A camouflage system, comprising at least one camouflage element which consists of at least one partial surface and which is controlled to display at least one camouflage pattern in order to achieve improved camouflage of vehicles and other objects. For this purpose, the partial surface of interest consists of at least one e-paper film.

Description

[0001] Optoelectronic camouflage device for adaptive environment adaptation - Description

[0002] Technical area

[0003] The invention relates to a camouflage device made of e-paper films. It also relates to a method for generating camouflage patterns that can be displayed on the camouflage device.

[0004] Background of the invention

[0005] E-paper films consist of several color pigments suspended in a liquid. These layers each exhibit different physical properties, particularly with regard to their polarity. By applying a voltage and generating an electric field, the color pigments can migrate back and forth between two electrodes. Depending on the duration and strength of the electric field, the color pigments, flowing at different speeds, can be transported to the visible outer surface of the film. Since e-paper films do not emit light, they only require small amounts of energy for this switching process. The color pigments do not change their position without the presence of the electric field.

[0006] State of the art

[0007] Visual adaptive camouflage on digital display devices is known from DE 10 2015 016 539 B4. The camouflage is generated using depth imaging via stereoscopy or LIDAR. The disadvantage of this device is that digital display devices emit light and must adjust their brightness to the surroundings. In strong sunlight, however, they cannot achieve the necessary brightness and are perceived as a dark object. Furthermore, the use of LIDAR emits radiation, which can be detected.

[0008] DE 20 2012 011 986 U1 discloses the use of e-paper films to display the opposite side of vehicles. The disadvantage of this technical solution is that the image of the opposite side can only be accurate from a specific perspective. When viewed from different angles, this creates broken edges, which not only negate the camouflage effect by preventing the vehicle from blending into its surroundings, but are also perceived as an unnatural irregularity, making the vehicle in question even more conspicuous.

[0009] From US 9,175,930 B1, it is known to use e-paper foils to display continuously changing camouflage patterns, which are generated by at least one articulated camera, which is a stereo camera, in order to capture the view from an elevated position. The disadvantage of this device is the need for the articulated camera in an elevated position, which creates the silhouette of the object to be camouflaged.

[0010] The object's size is magnified, thus negating the camouflage effect. Furthermore, the continuous adaptation and change of the camouflage pattern to the environment can be conspicuous and counteract the camouflage effect. The use of stereo cameras on articulated arms also results in a high degree of complexity and required computing power, which is further increased by the continuous updating of the camouflage pattern.

[0011] Design of the invention

[0012] The object of the invention is to achieve improved camouflage of vehicles or other objects, such as containers, buildings, or textiles. To this end, these vehicles or other objects are to be given a color-changing surface to display a pattern that makes them more difficult to see. This pattern adapts to the surrounding colors and obscures the object's contours. Furthermore, the detection of the underlying object can be made more difficult by artificial intelligence (AI)-supported systems for object detection by generating new patterns unknown to the detection system, or by deliberately misleading the detection system with patterns adapted to the detection system.

[0013] It should be possible to attach the camouflage device to surfaces without the need for modification. Particularly in vehicles or other JO spaces intended for human habitation and equipped to protect the interior from ballistic, chemical, biological, and nuclear impacts, but also in high-tech installations and unmanned systems, it is often intended to leave the external integrity of the exterior wall and its attachments unchanged so as not to compromise their protective effect. To achieve a camouflage effect by attaching the camouflage device, it should preferably be attached to surfaces in such a way that the surfaces in question remain intact.

[0014] Furthermore, the aim of attaching the camouflage device is to ensure that the camouflage device can be used in conjunction with other devices attached to the surfaces of vehicles or other spaces, for example to conceal thermal or radar signatures, without significantly impairing the effectiveness of these other devices.

[0015] Advantageously, at least one camouflage element is of modular design.

[0016] 15 The at least one camouflage element and / or the associated partial surfaces preferably lie either in one plane or are angled with respect to a common plane.

[0017] To protect against mechanical influences or to improve the reflection properties of the camouflage device in different wavelengths, corresponding transparent films can be attached to it.

[0018] Finally, the camouflage device should advantageously be replaceable without significant effort in the event of damage or failure of an individual camouflage element. Furthermore, the camouflage device should be expandable and adaptable as required, preferably by attaching additional camouflage elements. This should make it possible to adapt the camouflage device to differently shaped objects and

[0019] surfaces and allow for recesses for structures already present on the surface in question.

[0020] This is advantageously achieved by applying the camouflage device to a surface individually, in groups, or approximately in a tiled pattern. The camouflage device comprises at least one camouflage element, which in turn consists of at least one partial area made of e-paper foil, wherein the partial area preferably consists of at least one e-paper foil or several e-paper foils. By connecting via a control unit and / or monitoring unit to an input device, 5 such as a mobile phone, each individual partial area of ​​a camouflage element can change its color. Through the interaction of the camouflage elements, a pattern can be displayed, which can be changed at any time using the input device.

[0021] The camouflage elements can be controlled in various ways to ensure optimal adaptation to the environment and the specific requirements of the application. With parallel control, all camouflage elements are controlled simultaneously, enabling a rapid and smooth change of the camouflage pattern. In contrast, with serial control, the camouflage elements are controlled sequentially. To enable efficient control of a large number of camouflage elements, they can be grouped together and controlled jointly.

[0022] In a preferred embodiment, the variable pattern displayed on the camouflage elements is either a pattern specified by a user, selected from a predefined list, or algorithmically adapted to the environment >0.

[0023] The camouflage elements are preferably applied to the relevant surface either directly or integrated into a flat housing. The housing can be designed so that the partial surfaces lie horizontally next to one another in one plane. To improve the radar signature of the camouflage device, the housing can also be designed so that the partial surfaces are each angled at different angles. The angles of inclination and the respective direction of inclination can vary between the individual partial surfaces. Furthermore, the angles of inclination and direction of inclination of the individual partial surfaces can also vary depending on the base plates to which the partial surfaces are applied. They are preferably characterized by a modular design and are connected to one another. The modular design ensures that camouflage elements can be placed next to one another and connected as desired.In a preferred embodiment, the camouflage element is designed in a hexagonal shape. The hexagonal shape offers an optimal balance between flexibility and efficiency in space utilization. Its adaptability is based on the symmetry and interlocking of neighboring hexagons, which allows the combination of several camouflage elements into any desired shape. This avoids straight edges that are atypical of nature and thus disadvantageous for camouflage, such as those that occur when using rectangles. At the same time, the hexagonal geometry enables a seamless tiling of the plane with a minimal perimeter, which allows for a 10% reduction in material consumption compared to other shapes.

[0024] Depending on requirements, a partial surface can have additional layers in addition to an e-paper film in order to influence different properties of the camouflage device.

[0025] To provide protection against mechanical impacts, in a preferred embodiment, the partial surface can be supplemented by placing a protective plate, preferably made of polymethyl methacrylate (PMMA) or polycarbonate (PC), on the partial surface. The protective plate, which is preferably bonded to the e-paper film with a double-sided adhesive layer, prevents unwanted light refraction between the materials.

[0026] In a preferred embodiment, an anti-reflection layer can additionally be arranged on the surface or the partial area, which reduces the glare and reflection of incoming light. This can preferably be achieved by applying a film as an external anti-reflection layer to a partial area. This film has a micro-textured structure that reflects incident light almost ideally diffusely, while allowing high light transmission and is UV-resistant and weather-resistant. Such films are already used in photovoltaic systems to prevent unwanted reflections. Although these films are unsuitable for emitting or reflecting screens due to the resulting blurring, this blurring is irrelevant for the present camouflage device, since no writing or the like is displayed. Any color distortion caused by the film can be compensated for by appropriate

[0027] Correction can be compensated. In a preferred embodiment, a tinting layer can additionally be arranged on or above the partial area, which makes the layers below it appear darker or lighter in the visible range. This can be achieved by inserting a tinted film 5 which is semi-transparent or non-transparent. In a preferred embodiment, this tinting layer can be designed such that the entire surface of a partial area is covered or only a part of it, in order to thereby create a pattern (“sub-pattern”) which is static. This ensures that within a partial area with a uniform e-paper film, the displayed color 10 can appear to the viewer in different shades, which

[0028] The camouflage effect is further enhanced, particularly at short distances. This allows the partial areas to be designed relatively larger without creating overly large, uniform, and thus conspicuous color areas in a natural environment. By designing the partial areas larger, the number of camouflage elements required to effectively equip an object with the camouflage device is reduced. By requiring fewer camouflage elements, the complexity of the camouflage device is reduced, particularly with regard to cabling and control. This not only lowers the production costs and the resources required for a camouflage device, but also reduces the susceptibility to errors and simplifies handling.

[0029] In a preferred embodiment, an IR modification coating is additionally arranged on or over the partial surface, which modifies the NIR and / or FIR signature. This is achieved by deliberately reducing or enhancing the reflection properties of the topmost layer in a non-visible spectrum. The IR modification coating is preferably designed to cover part of the partial surface, thereby creating a sub-pattern in these areas. This achieves comparable results in the NIR and / or FIR range to those previously described for the visible range.

[0030] JO The IR modification coating is preferably designed such that it is substantially transparent in the visible range, while absorbing or reflecting radiation in the NIR and / or FIR range. When using a

[0031] In the case of the microtextured film described in Section I, this IR modification coating is preferably designed to preserve the microtexture. This can be achieved, for example, by applying silicon dioxide or aluminum oxide.

[0032] The IR modification coating can be applied using various 5 methods, such as vapor deposition, rolling, spraying, printing, lasering or by gluing a film.

[0033] In an alternative embodiment, the IR modification coating can be combined with the tinting layer to form one layer, in which the IR modification causes a tint in the visible spectrum.

[0034] 10 The process of changing the displayed color of an e-paper foil can sometimes take several seconds, depending on the product variant. During this time, the e-paper foil displays different colors in rapid succession, which can be very noticeable as flickering and visible from a distance. To prevent this, a so-called intelligent foil (smart foil) can be placed on or above the partial surface.

[0035] 15 or are applied to them. These films are generally based on PDLC (Polymer Dispersed Liquid Crystal) technology. This involves liquid crystals in a polymer matrix. When de-energized, the crystals are disordered, making the film appear opaque. When an electrical voltage is applied, the crystals align, and the film becomes transparent.

[0036] >0 Similar effects can be achieved using electrochromic materials or suspended particle devices (SPD) technology.

[0037] Electrochromic systems are based on the principle of reversible electrochemical oxidation and reduction of materials deposited in thin layers on transparent substrates. These materials, typically transition metal oxides or organic polymers, have the ability to change their optical properties depending on their oxidation state. By applying an electrical voltage, ions (e.g., protons or lithium ions) are transported into or out of the electrochromic layer, resulting in a change in the electronic band structure and thus in the absorption and

[0038] 10 transmission of light. The resulting modulation of the optical properties enables precise control of the system's transmission, reflection, or absorption over a wide range, from transparent to highly absorbent.

[0039] SPD films utilize the dielectric anisotropy of suspended particles in a liquid to control the transmission of light. In the absence of an electric field, the particles, typically nanoscale particles with a high dielectric constant, are randomly distributed in the liquid. This random arrangement leads to strong light scattering, making the film appear opaque. Applying an electric field causes the particles to align along the field lines, minimizing light scattering and rendering the film transparent. The switching speed of these systems is determined by the mobility of the particles in the liquid and the strength of the applied field. SPD films are characterized by high transparency in the activated state and fast switching times.By making the smart foil opaque during the switching process of the e-paper foil, the disruptive flickering can be concealed, making it less noticeable to the observer. In a preferred embodiment, the e-paper foil is the bottom layer. The smart foil is applied over it. The tint layer with a sub-pattern is applied over it. The impact protection plate is applied over it. The anti-reflective foil is applied over it. Finally, the IR modification coating is applied to this as the top layer. In an alternative embodiment, different partial areas of a camouflage element or different camouflage elements of the camouflage device can have different compositions to produce irregular appearances.

[0040] The camouflage patterns displayed by the camouflage elements preferably have one or more of the following properties:

[0041] • that they can be manually selected using an input device; that they are generated, i.e. created by algorithms, which can be algorithm-supported; • that a camouflage pattern can be manually selected from several algorithmically generated camouflage patterns in an additional step using an input device, or the camouflage pattern can be improved;

[0042] • that the camouflage pattern is created by combining the colors of a

[0043] 5 preset, non-generated camouflage patterns can be modified;

[0044] • that the selection of camouflage patterns is carried out by algorithms for determining the salience of the camouflage pattern;

[0045] • that the camouflage pattern generation algorithms determine and use the dominant colors through color quantization or AI-based methods;

[0046] 10 • that the camouflage pattern generation algorithms produce fractal patterns;

[0047] • that images of the current environment or similar environments are used to generate camouflage patterns; and / or

[0048] • that the images of the current environment are recorded by at least one monoscopic camera integrated into the object to be camouflaged.

[0049] 15 In a preferred embodiment, the camouflage device comprises an input device with a screen, such as a tablet, a laptop, or a mobile phone. The input device is configured such that, in a preferred embodiment, one or more azimuth and elevation angles can initially be selected in order to optimize the camouflage pattern to be generated for an advantageous >0 camouflage effect from this or several of these viewing directions. For this purpose, the camera information antipodal to the selected direction is used, so that the camouflage effect is optimal against an observer from the selected direction.

[0050] In a preferred embodiment, a camouflage pattern can be manually selected from several generated >5 camouflage patterns in an additional step, or the camouflage pattern can be improved. The possibility of manual selection and adjustment, in the sense of a "human-in-the-loop" configuration, offers significant advantages over fully automated generation. Firstly, human-machine interaction (HMI) enables the combination of the AI's JO algorithmic strength with the intuitive and context-related judgment of the human operator. While the AI ​​is capable of generating a multitude of patterns based on complex calculations and data sets, the human can evaluate and select these results based on their practical applicability, their consistency with specific environmental conditions, and their tactical advantages.This human curating function is particularly important because the AI ​​may not be able to fully consider all relevant factors, such as specific operational scenarios or the visual perception of the enemy.

[0051] Secondly, the manual selection option increases safety and control over the generation process. By involving humans in the decision-making process, the risk of the AI ​​generating undesirable or ineffective patterns is minimized. This control is particularly important in safety-critical applications where the effectiveness of the camouflage pattern can determine success or failure. Although involving humans in the generation process can potentially slow the speed of pattern generation, it offers the crucial advantage of an iterative learning process ("feedback loop"). The human selection and the subsequent evaluation of the effectiveness of the camouflage pattern provide valuable training data for the AI. This data can be used to improve the AI's algorithms and models and to generate even more effective camouflage patterns in the future.Thus, the manual selection option becomes not only a quality control tool, but also an important component of the continuous learning and further development of AI-based camouflage pattern generation: The camouflage pattern generation algorithm advantageously takes one or more still or moving images of the environment as input. Based on these, together with other environmental parameters, one or more camouflage patterns can be generated as output. The environmental parameters can be, for example, time of day and location, as well as third-party data based on these parameters, such as similar image recordings or satellite images of the location. The user can manually edit the generated camouflage patterns if necessary. The algorithm preferably uses traditional algorithmic methods of image and data processing, but also AI-supported methods to generate the output data from the input data in several steps.The output data can consist of a color assignment for each camouflage element of the camouflage device. The camouflage patterns themselves can either be known in advance or manually generated, or generated algorithmically. Some examples of the steps involved in generating a camouflage pattern are:

[0052] • Using color quantization or Cl-based methods to extract the dominant colors from image recordings.

[0053] • Coloring predetermined camouflage patterns with colors that are better camouflaged for a specific environment.

[0054] • The generation of two-dimensional noise with a power spectrum close to that of natural images. Such noise produces a fractal, self-similar pattern that can serve as the basis for a camouflage pattern.

[0055] • The use of AI-supported methods for detecting prominent features in images, so-called saliency maps. Such a saliency map shows which regions of an image stand out from their surroundings. The saliency maps are generated by AI models that are trained on gaze data collected through gaze tracking. This allows the distribution of gaze data across an image to be simulated. In addition to fixations, saccades are also recorded so that the AI ​​model can predict not only the amount of gaze data but also the order of glances. In a computer-supported simulation, a saliency map of the environment can now first be generated. In a second step, a camouflage pattern is inserted into an image of the environment. The difference between the saliency map of this image and the original provides a measure of the quality of the camouflage pattern.

[0056] • Manually selecting a suitable pattern from several machine-generated patterns.

[0057] Preferably, the calculations are performed on end devices located at the camouflage site. Since AI-based methods require increased computing power, powerful end devices such as smartphones or other microcomputers with graphics or tensor processing units (GPUs or TPUs) are preferred for generating the camouflage patterns.

[0058] In a preferred embodiment, the output data is then transmitted from the input device to the control unit. The control unit assumes the higher-level control of one or more control units. The respective control unit, which is installed on the base plate of a camouflage element, assumes the specific control of the individual sub-areas of this camouflage element.

[0059] In a further embodiment, the control unit and the control unit are combined in one component and jointly control one or more camouflage elements IO and their sub-areas. In this embodiment, the camouflage elements do not each have a control unit.

[0060] In a preferred embodiment of the camouflage device, the at least one camouflage element comprises six triangular partial surfaces made of e-paper foils and a control unit as well as a control unit, wherein the partial surfaces are joined together in the shape of a 15 hexagon, in the center of which the control unit is arranged, which is connected to all partial surfaces, and wherein the control unit of the at least one camouflage element is connected to the control unit by means of a cable.

[0061] The camouflage device preferably comprises a plurality of camouflage elements, wherein >0 several control units of camouflage elements are connected to the same control unit.

[0062] In a preferred embodiment, the camouflage device has an input device, wherein the input device is connected to the control unit by a cable, and wherein the colors to be displayed are transmitted to the control unit by means of the input device.

[0063] Advantageously, the control unit is connected to a power source via a cable. The control units preferably receive their power from the power source via the control unit, which routes / routes the power to them. Please check. Figure List

[0064] Fig. 1 is a schematic representation of the camouflage device including associated control and input device;

[0065] Fig. 2 is a schematic representation of a vehicle on whose surface 5 several copies of the camouflage device are applied;

[0066] Fig. 3 is a schematic representation of the processes for generating camouflage patterns;

[0067] Fig. 4 is a schematic representation of a camouflage element with angled partial surfaces; and

[0068] Fig. 5 is a schematic representation of a cross section of a partial area.

[0069] IO Fig. 6 is a schematic representation of several camouflage elements each comprising six partial areas on which a sub-pattern is applied by the tinting layer and / or the IR modification coating.

[0070] Example

[0071] I5 Fig. 1 shows a schematic representation of the camouflage device.

[0072] This consists of at least one camouflage element 2, which consists of six triangular partial surfaces 3 made of e-paper foils and a control unit 4. The partial surfaces 3 are assembled to form a hexagon, in the center of which is the control unit 4, which is connected to all partial surfaces 3. The control unit 4 of a >0 camouflage element 2 is connected to a control unit 5 via cable 7.

[0073] Several control units 4 of camouflage elements 2 can be connected to the same control unit 5. The control unit 5 is in turn connected to a voltage source 6 via a cable 8. The colors to be displayed are transmitted to the control unit 5 via cable 9 using an input device 1.

[0074] >5 Fig. 2 shows a schematic representation of a camouflage element TOO on a base plate 101 in the embodiment variant with angled partial surfaces 102. The angles of inclination and the respective directions of inclination shown are only examples. These may vary between different base plates 101.

[0075] Fig. 3 shows an example of the algorithm's flow with input and output data. The input data consists of still or moving images 200 and augmented data 201, in this case position data and a timestamp. From this, the algorithm 202 generates the output data 203. The output data consists of an assignment of a color, here indicated by an RGB color value in the hexadecimal system, to each partial area of ​​each camouflage element.

[0076] Fig. 4 shows a schematic representation of a vehicle. Two examples of the camouflage device are applied individually 301 and six examples of the camouflage device are applied approximately in a tiled pattern 302 on the vehicle surface 300.

[0077] Fig. 5 shows a schematic representation of a cross-section of a partial surface consisting of an e-paper film 400, a smart film 401, a tint layer with sub-pattern 402, an impact protection plate 403, an anti-reflective film 404 and an IR modification coating 405.

[0078] Fig. 6 shows a schematic representation of several camouflage elements 500 each comprising six partial areas 501 on which a sub-pattern is applied by the tinting layer and / or the IR modification coating 502 and 503.

[0079] List of reference symbols

[0080] 1 input device

[0081] 2 camouflage element

[0082] 3 Partial area consisting of an e-paper film

[0083] 4 Control unit (partially concealed)

[0084] 5 Control unit

[0085] 6 Voltage source

[0086] 7 Cable or conductor track (partially hidden)

[0087] 8 Cable or conductor track 9 Cable

[0088] 100 camouflage element

[0089] 101 Base plate

[0090] 102 sub-areas 200 images

[0091] 201 Augmenting Data

[0092] 202 Algorithm

[0093] 203 Output data

[0094] 300 Vehicle surface 301 Camouflage element

[0095] 302 Six approximately parquet-mounted camouflage elements

[0096] 400 e-paper foil

[0097] 401 tint layer with sub-pattern

[0098] 402 Smart-Foil ' 403 Impact protection plate

[0099] 404 Anti-reflective film

[0100] 405 IR modification coating

[0101] 500 camouflage elements

[0102] 501 Partial area 502 Sub- produced by tinting layer and / or IR modification coating

[0103] Pattern

[0104] 503 Sub-pattern created by tinting layer and / or IR modification coating

Claims

Patent claims 1. Camouflage device, comprising at least one camouflage element (2) consisting of at least one partial area (3) which is controlled to display at least one camouflage pattern, ' characterized in that the respective partial area (3) consists of at least one e-paper film.

2. Camouflage device according to claim 1, characterized in that a plurality of partial surfaces (3) is provided, wherein the partial surfaces (3) can be controlled in parallel, in series or individually.

3. Camouflage device according to claim 1 or 2, characterized in that the at least one camouflage element (2) is of modular construction.

4. Camouflage device according to one of claims 1 to 3, characterized in that the at least one camouflage element (2) and / or the associated partial surfaces (3) lie in one plane or are angled.

5. Camouflage device according to one of claims 1 to 4, characterized in that the at least one camouflage element (2) has a hexagonal shape due to the design of the partial surfaces (3).

6. Camouflage device according to one of claims 1 to 5, characterized in that the camouflage patterns displayed by the at least one camouflage element (2) can be manually selected and / or generated by means of an input device (1), i.e. Algorithms are generated, which are advantageously AI-supported.

7. Camouflage device according to claim 6, characterized in that by means of an input device (1) from several generated camouflage patterns in an additional step a Camouflage pattern can be selected manually or the camouflage pattern can be improved.

8. Camouflage device according to claim 6 or 7, characterized in that the camouflage pattern is generated by modifying the colors of a preset, non-generated camouflage pattern.

9. Camouflage device according to one of claims 6 to 8, characterized in that the camouflage patterns are selected by algorithms for determining the salience of the camouflage pattern.

10. Camouflage device according to one of claims 6 to 9, characterized in that the algorithms for camouflage pattern generation determine and use the dominant colors by color quantization or AI-based methods.

11. Camouflage device according to one of claims 6 to 10, characterized in that the algorithms for camouflage pattern generation generate fractal patterns.

12. Camouflage device according to one of claims 6 to 11, characterized in that images of the current environment or similar environments are used to generate the camouflage pattern.

13. Camouflage device according to claim 12, characterized in that the images of the current environment are recorded by at least one monoscopic camera integrated into the object to be camouflaged.

14. Camouflage device according to one of claims 1 to 6, characterized in that one or more partial surfaces (3) of one or more camouflage elements (2) contain a film with a microtextured structure.

15. Camouflage device according to one of claims 1 to 6 or 14, characterized in that one or more partial surfaces (3) of one or more camouflage elements (2) have a permanent semi-transparent or non-transparent sub-pattern in the visible range through a tinting layer.

16. Camouflage device according to one of claims 1 to 6 or 14 to 15, characterized in that one or more partial surfaces (3) of one or more camouflage elements (2) have an IR modification coating, by means of which a sub-pattern in the NIR and / or FIR range is created.

17. Camouflage device according to one of claims 1 to 6 or 14 to 16, characterized in that one or more partial surfaces (3) of one or more camouflage elements (2) contain a smart foil.

18. Camouflage device according to one of the preceding claims, wherein the at least one camouflage element (2) comprises six triangular partial surfaces (3) made of e-paper foils and a control unit (4) as well as a control unit (5), wherein the partial surfaces (3) are joined together in the shape of a hexagon, in the center of which the control unit (4) is arranged, which is connected to all partial surfaces (3), and wherein the control unit (4) of the at least one camouflage element (2) is connected to the control unit (5) by means of a cable (7).

19. Camouflage device according to claim 18, comprising a plurality of camouflage elements (2), wherein several control units (4) of camouflage elements (2) are connected to the same control unit (5).

20. Camouflage device according to claim 18 or 19, comprising an input device (1), wherein the input device is connected to the control unit (5) by a cable (9), and wherein the colors to be displayed are transmitted to the control unit (5) by means of the input device (1).

21. Camouflage device according to one of claims 1 to 20, characterized in that the input device (1) enables the selection of one or more azimuth and elevation angles which are to be taken into account in the camouflage pattern generation Define background information.

Images