Method, computer program and device for controlling a light projection of a means of transport

Abstract

The present invention relates to a method, a computer program with instructions, and a device for controlling a light projection of a means of locomotion. The invention also relates to a means of locomotion that uses a method or a device according to the invention. In a first step, at least one virtual object is projected into an environment of the means of locomotion (10). In addition, a movement of a body part of a living being relative to the projected virtual object is detected (11). Based on the detected movement, a virtual energy or momentum transfer to the projected virtual object is calculated (12). The projection of the virtual object is then adjusted according to the virtual energy or momentum transfer (13).

Description

The present invention relates to a method, a computer program having instructions and a device for controlling a light projection of a means of transport. The invention also relates to a means of transportation which uses a method according to the invention or a device according to the invention.Entertainment systems for motor vehicles are known, which have screens or projection units, for example, via which movies or games can be played or displayed for entertainment of vehicle users. Moreover, motor vehicles with integrated projection units are also known. For example, DE 10 2021 116 678 A1 describes a motor vehicle having a digital projection unit for projecting graphical or written information onto a projection surface. The digital projection unit is connected to a monitoring circuit of the motor vehicle in order to project the graphic or written information, evaluate an image recording of the graphic or written information and to change the projection of the graphic or written information on the projection surface by the digital projection unit based on the evaluated image recording.In addition, lighting devices for vehicle light systems are also known which generate holograms in the environment of the vehicle. The holograms can achieve effects which go beyond the luminous function of classic lighting devices: for example, warning functions can be generated which, by a three-dimensional impression in the perception of the observer, have a stronger effect than a classic warning light and thus increase the safety.DE 10 2016 207 187 A1 describes a protective device for a motor vehicle for avoiding a wild change over a travel path arranged in front of the motor vehicle in an environment. The protection device has a light source and a projection device. The light source serves for generating a projection light in the motor vehicle. The projection device serves for generating a light projection from the motor vehicle into the environment by means of the projection light. The projection device is configured to optically present, by means of the light projection, at least one graphic representation of an obstacle for a movement in the direction of the driving path ahead to a wild animal located in the environment.US 2020 / 0290513 A1 describes a light field display system for augmentation of a vehicle. The light field display system includes light field display modules forming a surface of a vehicle. The light field display modules each have a display area and are adjacently arranged to form a seamless display area. This has an effective display area larger than the display area. A viewer can interact with objects displayed in the effective display area.DE 10 2017 216 100 A1 describes a method for controlling and displaying an augmented reality display device in a motor vehicle, in this case the vehicle situation is detected by a sensor system and simulated on a display as a virtual moving object.DE 10 2019 206 644 B3 describes an adjustable ambient lighting of a vehicle, in which the movement data of a person are detected in order to adjust the illumination area in accordance with the movement.It is an object of the invention to provide improved solutions for controlling a light projection of a means of transport for interaction with a user.This object is achieved by a method having the features of claim 1, by a computer program having instructions according to claim 9, by an apparatus having the features of claim 10 and by a means of transport according to claim 11. Preferred embodiments of the invention are the subject of the dependent claims.According to a first aspect of the invention, a method for controlling a light projection of a means of transport comprises the steps:projecting at least one virtual object into a surrounding area of the means of transport;detecting a movement of a body part of a living being relative to the projected virtual object;calculating a virtual energy or momentum transfer to the projected virtual object based on the detected motion; andadapting the projection of the virtual object according to the virtual energy or impulse transfer.According to a further aspect of the invention, a computer program contains instructions which, when executed by a computer, cause the computer to execute the following steps for controlling a light projection of a means of transport:projecting at least one virtual object into a surrounding area of the means of transport;detecting a movement of a body part of a living being relative to the projected virtual object;calculating a virtual energy or momentum transfer to the projected virtual object based on the detected motion; andadapting the projection of the virtual object according to the virtual energy or impulse transfer.The term computer is to be understood broadly here. In particular, it also includes controllers, embedded systems and other processor-based data processing devices. The execution of the steps mentioned can take place directly by the computer or consist in the computer controlling a component provided for executing a step accordingly, for example a projection unit or a sensor.The computer program can be provided for an electronic fetch or be stored on a computer readable storage medium, for example.According to a further aspect of the invention, a device for controlling a light projection of a means of transport comprises:a projection module for projecting at least one virtual object into a surrounding area of the means of transport;a detection module for detecting a movement of a body part of a living being relative to the projected virtual object; anda computing module for computing a virtual energy or impulse response to the projected virtual object based on the detected motion and adjusting the projection of the virtual object corresponding to the virtual energy or impulse response.In the solution according to the invention, ambient lighting devices are used to generate light projections onto surfaces or holograms in space in the environment of a means of transport. Persons or animals can interact with these light projections or holograms via a virtual exchange of kinetic energy or a virtual impulse transfer, for example in the event of an intermediate stop. This allows for improved entertainment or relaxation as well as support for sporting activities or training of the motor or balance sense of persons in connection with vehicle use.Using recognized real movement patterns of persons or animals, virtual physical impulse and energy transfers to virtually represented objects in space can be determined, for example using a learned artificial intelligence algorithm, which would occur physically at the same point during interactions with real objects. The projection of the virtual object is then adapted in accordance with the virtual energy or impulse transfer, i.e. the position and movement of the virtual object is changed in the same way as would also be the case with a real object in such an energy or impulse transfer.According to one aspect of the invention, a virtual energy or impulse transmission to a virtual object can also be determined, which takes place indirectly via a real object used by the living being. Thus, for example, a virtual energy or impulse transmission can be determined, which takes place from a real golf club used by the real person to a virtual projected golf ball. For this purpose, the movement pattern of the person or of the golf club can be evaluated. The movement of the virtual golf ball is then carried out accordingly and presented to the user.According to one aspect of the invention, an interaction between a virtual object and a living being takes place already when a minimum distance from a surface of the virtual object is undershot. For example, a projected ball may move away from a dog due to a virtual energy or impulse transfer before there was contact to the surface of the virtually represented ball.According to one aspect of the invention, the virtual object is projected in a two-dimensional or three-dimensional representation by at least one headlight or a holographic projector of the means of transport. A projector specifically provided for this purpose can be used for the projection of virtual objects, but modern headlights, for example laser headlights or matrix LED headlights (LED: light emitting diode), which today already partially make possible a targeted emission of light, can also be used. Matrix LED technology is currently being used more and more widely in motor vehicles, since an external lighting system having a matrix LED headlight is particularly powerful, in particular with regard to adaptive lighting or light functions. If the corresponding matrix LED headlight has a particularly high number of individual LEDs, a particularly high resolution of the objects projected onto the projection surface by means of the external light system is made possible. In addition, the electrical power required for the projection is particularly low, so that the energy consumption by the projection does not increase significantly.Additionally or alternatively, one or more lasers can also be provided as the light source. As a result, a luminous power density of the light projection can be set to a particularly large value. If necessary, digital imagers with imaging surfaces can also be used. For example, the digital imager may include a liquid crystal display (LCD), an LED display, an organic light emitting diode (OLED) display, or a digital micromirror device (DMD). A DMD imager includes a DMD device in the form of an array of a plurality of micromirrors that are moved via actuator circuitry to deflect light beams in different directions, thereby generating image information.According to the invention, the light radiation of one or more imagers can be divided by means of an optical device in such a way that one part of the light radiation serves only for generating a virtual object and another part of the light radiation serves only for generating a light pattern or a homogeneous surface. The optical device thus enables a separate treatment of the light radiation generated by the image generator depending on whether a virtual object or a light pattern or a homogeneous surface is displayed. This makes it possible to take into account different requirements in a simple manner when generating a virtual object or a light pattern or a homogeneous surfaceAccording to one aspect of the invention, the movement of the body part of the living being relative to the projected virtual object is detected by means of a surroundings sensor system of the means of transportation. In the solution according to the invention, environment sensors are used to detect the positions and movements of living beings with respect to the virtual objects represented. Such surroundings sensors are available in many cases today in vehicles, in particular in autonomous or semi-autonomous vehicles. For example, a surroundings camera system of a vehicle can be used, on the recordings of which image processing and object recognition can be carried out. In this case, movement patterns of persons or animals can be recognized and interpreted, for example with the aid of a learned artificial intelligence algorithm.According to one aspect of the invention, adapting the projection of the virtual object comprises a movement or deformation of the virtual object. The interaction between a living being and a virtual object takes place via virtual contacts in such a way that the virtual object can be set in motion or braked according to physical laws, as a corresponding real object would interact. Thus, for example, a projected football or a hologram of a football can be struck or shot by a person with a shot movement and, according to a detected movement pattern of the person, a virtual impulse and virtual kinetic energy can be transmitted to the virtual ball, with which the virtual football then moves like a real ball according to physical laws and in the process possibly also deforms.According to one aspect of the invention, environmental parameters are taken into account when adapting the projection of the virtual object. In the determination of the virtual movement behavior of virtual objects, e.g. in the determination of a virtual trajectory of a virtual golf ball, available data on environmental parameters can be used, such as current local weather data, the inclination of the local ground surface or the local ground condition. Thus, even more realistic movement or flight paths of the virtually represented objects can be determined and shown to a vehicle user. Examples of weather data are wind intensity, wind direction or rain. The data can be ascertained via a sensor system of its own or can be called up externally via a vehicle system.According to one aspect of the invention, a slowed or accelerated movement of the virtual object takes place when adapting the projection of the virtual object. The virtual movements of the virtual objects can be displayed to the user in a slowed manner or in an accelerated manner with respect to a physically correct movement. For example, the flight phase of virtual balls can be represented slower during the jongching than in reality, whereby the jongching can be learned more easily by a human. Likewise, the flight of a virtual baseball, which is thrown by a virtual baseball pitcher, for example, can be displayed more slowly than reality, so that the user has more time to prepare for the virtually flying ball. Through repetitions, a real person can thus practice a strike at slowed speeds of the virtually flying baseball, in order to then be able to hit him better at speeds represented physically correctly.According to one aspect of the invention, additional information is provided to the living being using further interaction systems. For example, the interaction between a person and a projected virtual object can be supported using augmented reality glasses. Thus, for example, further virtual objects or information in connection with an activity can be overlaid in the field of view of the user. For example, during the journaling, the hand movements to be carried out can be displayed with the aid of augmented reality glasses.Alternatively or additionally, haptic information can also be communicated. For example, virtual pulses can be made perceptible with the aid of smart clothing. Thus, for example, the virtual ball touches can be made perceptible with accurate time during jongleaning by haptic actuators in smart gloves. For this purpose, the smart gloves are preferably in communication with a vehicle system. As another example, using an actuator in a smart golf club, the shot pulse may be made perceptible to the human when encountering the virtual golf ball to more realistically present the scene.According to one aspect of the invention, the control of the light projection is subject to risk monitoring. For example, with the aid of image processing and object recognition, it is possible to recognize on the basis of images of a vehicle camera system where faces or eyes of persons are located or will be located with high probability during further movement sequences of the persons. Thus, illumination areas can be adapted by the vehicle light system, optionally in a predictive manner, so that persons are not blinded by light projections or holograms.Alternatively or additionally, it can be checked with the aid of environment sensors and image analyses whether interactions with projected virtual objects can be carried out with sufficient probability in such a way that further people, animals, plants or objects in the environment are not bothered or damaged. For example, a learned artificial intelligence algorithm can be used to estimate the environment, so that, for example, vehicle users can be warned of the execution of a desired interaction with a virtual object. Thus, for example, it can be avoided that another vehicle can be damaged during a golf stroke by the extraction movement with a real golf club.Advantageously, a means of transport has a device according to the invention or is configured to carry out a method according to the invention for controlling a light projection. The means of transport can be, in particular, a car, but likewise also a bus or a commercial vehicle. The means of transport can be configured to propose locations with the aid of a vehicle system that are particularly well suited for carrying out desired interactions. Thus, by a vehicle system, while route guides are being guided to a destination, intermediate stops can be selected in such a way that, for example, the practice of striking a golf ball can be carried out particularly well. Favored procedures or interactions with respect to a vehicle user can be stored in a user profile. Thus, in route guidance, temporary stops can be proposed to a vehicle user in such a way that they can be connected to charging times of an electric vehicle, and charging points can be proposed in particular, at which specific interactions with projected virtual objects can be carried out particularly well.Other features of the present invention will become apparent from the following description and the appended claims taken in conjunction with the figures. FIG. 1 schematically shows a method for controlling a light projection of a means of transport; FIG. 2 shows a first embodiment of a device for controlling a light projection of a means of transport; FIG. 3 shows a second embodiment of a device for controlling a light projection of a means of transport; FIG. 4 schematically illustrates a means of transportation in which a solution according to the invention is implemented; FIG. 5 schematically shows a first example of a person's interaction with a virtual football; FIG. 6 schematically shows a second example of a person's interaction with a virtual football; FIG. 7 schematically shows a first example of a person's interaction with a virtual golf ball; FIG. 8 schematically shows a second example of a person's interaction with a virtual golf ball; FIG. 9 schematically shows an interaction of a person with virtual jong-ply balls; FIG. 10 schematically shows an interaction of a person with a virtual baseball; and Figure 11 schematically shows an interaction of an animal with a virtual ball.To better understand the principles of the present invention, embodiments of the invention are explained in more detail below with reference to the figures. It is to be understood that the invention is not limited to these embodiments and that the described features may be combined or modified without departing from the scope of the invention as defined in the appended claims.FIG. 1 schematically shows a method for controlling a light projection of a means of transport. In a first step, at least one virtual object is projected 10 into the surroundings of the means of transportation, the virtual object can be projected 10 e.g. in a two-dimensional or three-dimensional representation by at least one headlight or a holographic projector of the means of transportation. In addition, a movement of a body part of a living being relative to the projected virtual object is detected 11, e.g. by means of a surroundings sensor system of the means of transportation. On the basis of the detected movement, a virtual energy or impulse transfer onto the projected virtual object is calculated 12. the projection of the virtual object is then adapted 13 in accordance with the virtual energy or impulse transfer. If necessary, a slowed or accelerated movement of the virtual object can take place when adapting 13 the projection of the virtual object. Additional information can also be communicated using further interaction systems. Preferably, the control of the light projection is subject to risk monitoring.FIG. 2 shows a simplified schematic illustration of a first embodiment of a device 20 for controlling a light projection of a means of transport. The device 20 has an input 21, via which data UD of a surroundings sensor system 43 of the means of transportation may be received, for example. A projection module 22 is configured to project at least one virtual object into a surrounding area of the means of transportation. For this purpose, the projection module 22 can output corresponding control signals S via an output 27 of the apparatus 20 to a projection device of the means of transport, e.g. to a headlight 41 or a projector 42 for a two-dimensional or three-dimensional representation of the virtual object. A detection module 23 is configured to detect a movement of a body part of a living being relative to the projected virtual object, e.g. on the basis of the data UD of the environment sensor system 43. A computing module 24 is configured to calculate a virtual energy or impulse transfer onto the projected virtual object on the basis of the detected movement and to adapt the projection of the virtual object in accordance with the virtual energy or impulse transfer. For this purpose, the computing module 24 can pass on the necessary information to the projection module 22. The adaptation of the projection can comprise, for example, a movement or deformation of the virtual object, wherein environmental parameters UP can also be taken into account. If necessary, a slowed or accelerated movement of the virtual object can take place when adapting the projection of the virtual object. Additional information can also be communicated using further interaction systems 60. For this purpose, corresponding control signals S can be output via the output 27 to the interaction systems 60. Preferably, the control of the light projection is subject to risk monitoring.The projection module 22, the acquisition module 23 and the calculation module 24 can be controlled by a control module 25. Settings of the projection module 22, the detection module 23, the computing module 24 or the control module 25 can optionally be changed via a user interface 28. The data arising in the device 20 can be stored in a memory 26 of the device 20 if necessary, for example for later evaluation or for use by the components of the device 20. Of course, however, they can also be partially or completely combined or implemented as software which runs on a suitable processor, for example on a CPU or a GPU. The input 21 and the output 27 may be implemented as separate interfaces or as a combined bidirectional interface.FIG. 3 shows a simplified schematic illustration of a second embodiment of a device 30 for controlling a light projection of a means of transport. The apparatus 30 includes a processor 32 and a memory 31. For example, the device 30 is a computer, a control device or an embedded system. The memory 31 stores instructions which, when executed by the processor 32, cause the device 30 to execute the steps according to one of the described methods. The instructions stored in the memory 31 thus embody a program executable by the processor 32, which implements the method according to the invention. The device 30 has an input 33 for receiving data. Data generated by the processor 32 is provided via an output 34. Furthermore, data can be stored in the memory 31. The input 33 and the output 34 can be combined to form a bidirectional interface.The processor 32 may include one or more processing units, such as microprocessors, digital signal processors, or combinations thereof.The memories 26, 31 of the described embodiments can have both volatile and non-volatile memory areas and comprise a wide variety of storage devices and storage media, for example hard disks, optical storage media or semiconductor memories.FIG. 4 schematically illustrates a means of transportation 40 in which a solution according to the invention is implemented. The means of transport 40 is a motor vehicle in this example. In the example shown, the motor vehicle has various projection devices. These are firstly the headlights 41, and secondly a holographic projector 42. environment data UD can be detected by means of an environment sensor system 43. Environment sensor system 43 may include cameras, radar sensors, lidar sensors, ultrasonic sensors, or climate sensors, for example. The motor vehicle has a device 20 according to the invention for controlling a light projection. The device 20 can be implemented, for example, on a computer 44 of the motor vehicle. A connection to a backend can be established by means of a data transmission unit 45, for example for transmitting settings, for retrieving updated software for the components of the motor vehicle or for receiving environmental parameters UP. Environment parameters UP can also be determined by environment sensor system 43. A memory 46 is provided for storing data. The data exchange between the various components of the motor vehicle takes place via a network 47.Examples of interactions of living beings 51 with virtual objects 50 are to be explained below with reference to FIGS. 5 to 11.FIG. 5 schematically shows a first example of an interaction of a person 51 with a virtual football. A football is projected as a virtual object 50 onto the ground or into the room by a headlight 41 of a means of transportation 40 or by a projector not shown here. Interactions of persons 51 with this football are detected by a surroundings sensor system 43 of the means of transportation 40. For this purpose, images of a camera of environment sensor system 43 may be subjected to an analysis, for example. The movements or the interactions are evaluated with regard to a virtual energy or impulse transmission to the virtual object 50. The movements of the virtual football are then carried out according to the interactions with the persons 51. Thus, for example, the virtually projected football can be shot back and forth between the two persons 51 in accordance with the detected shot movements. The movement of the virtual football can be stopped by holding a body part 52, e.g. a real foot, against it, as in the case of a real football.FIG. 6 schematically shows a second example of an interaction of a person 51 with a virtual football. A football is projected as a virtual object 50 onto the ground or into the room by a headlight 41 of a means of transportation 40 or by a projector not shown here. In addition, a gate wall with virtual openings is projected onto a wall. Only a part of the light radiation of headlight 41 here is used to generate virtual object 50, while another part of the light radiation is used to generate a light pattern 53. In this way, virtual gate wall shooting is enabled.FIG. 7 schematically shows a first example of interaction of a person 51 with a virtual golf ball. A target tag with hole is projected as a first virtual object 50 by a headlight 41 of a means of transportation 40 or by a projector not shown here. The hole can be projected, for example, as a surface, the target lug as a hologram. As a second virtual object 50, a golf ball is projected onto the ground or as a hologram into the space. The person 51 can interact with this golf ball with a real golf club. For this purpose, a virtual energy or impulse transmission is determined using a surroundings sensor system 43 of the means of transportation 40, which is carried out from the real golf club used by the real person 51 to the virtual projected golf ball.FIG. 8 schematically shows a second example of a person's interaction with a virtual golf ball. By means of a headlight 41 of a means of transport 40 or by means of a projector not shown here, a golf ball is projected as a first virtual object 50 onto the ground or as a hologram into the space. The person 51 can interact with this golf ball with a real golf club. For this purpose, a virtual energy or impulse transmission is determined using a surroundings sensor system 43 of the means of transportation 40, which is carried out from the real golf club used by the real person 51 to the virtual projected golf ball. As the second virtual object 50, a representation of the golf ball shot is projected on a partial surface of a spherical surface having a virtual trajectory of the virtual golf ball. The virtual trajectory is executed depending on the detected movement pattern of the golf club when struck by the person 51. When available, current weather conditions can be taken into account in the calculation of the virtual trajectory of the virtual golf ball.FIG. 9 schematically shows an interaction of a person 51 with virtual jong-ply balls. In this example, balls are projected as a hologram into the space by a headlight 41 of a means of transportation 40 or by a projector, not shown here, as a virtual object 50. The person 51 can jongle with these balls. For this purpose, the interaction of the person 51 with the projected balls is again detected by a surroundings sensor system 43 of the means of transportation 40, and the balls are moved accordingly. At this time, the flight phase of the virtual balls can be displayed slower during the jongching than in reality, whereby the jongching can be learned more easily by the person 51.FIG. 10 schematically shows an interaction of a person 51 with a virtual baseball. In this example, a baseball launcher and a virtual baseball cast by it are projected into the space as virtual objects 50 by a headlight 41 of a means of transportation 40 or by a projector not shown here. The person 51 can hit this virtual baseball with a baseball club. For this purpose, the interaction of the person 51 or of the baseball club with the virtual baseball is detected by a surroundings sensor system 43 of the means of transportation 40, and the virtual baseball is moved accordingly. Here too, the flight of the virtual baseball can be displayed more slowly than reality, so that the person 51 has more time to prepare for the virtually flying ball. Thus, by repeating the steps, the person 51 can exercise a shock at slowed speeds of the virtually flying baseball.Figure 11 schematically shows an interaction of an animal 51 with a virtual ball. In addition to interaction with persons, the solution according to the invention is also suitable for interaction with animals. In the example shown, a ball is projected onto the ground or into the space as a virtual object 50 by a headlight 41 of a means of transportation 40 or by a projector not shown here. According to the movements of the animal 51 or the virtual touches detected by a surroundings sensor system 43 of the means of transport 40, movement of the virtual ball is carried out. In this case, an interaction between the animal 51 and the virtual object 50 can already take place when a minimum distance from the surface of the virtual object 50 is undershot, i.e. the virtual ball is already moving before a touch occurs. In this way, for example, the animal can be prevented from attempting to bite into the virtual object.List of reference characters10 Projection of a virtual object 11 Detection of a movement of a body part 12 Calculation of a virtual energy or impulse transfer 13 Adaptation of the projection of the virtual object 20 Device 21 Input 22 Projection module 23 Detection module 24 Computing module 25 Control module 26 Memory 27 Output 28 User interface 30 Device 31 Memory 32 Processor 33 Input 34 Output 40 Means of transport 41 Headlight 42 Projector 43 Environment sensor system 44 Computer 45 Data transfer unit 46 Memory 47 Network 50 Virtual object 51 Living being 52 Body part 53 Light pattern 60 Interaction system S Control signal UD Environment data UP Environment parameter

Claims

Method for controlling a light projection of a means of transportation (40), having the steps: - projecting (10) at least one virtual object (50) into a surrounding area of the means of transportation (40); - detecting (11) a movement of a body part (52) of a living being (51) relative to the projected virtual object (50); - calculating (12) a virtual energy or impulse transfer onto the projected virtual object (50) on the basis of the detected movement; and - adapting (13) the projection of the virtual object (50) in accordance with the virtual energy or impulse transfer.Method according to Claim 1, wherein the virtual object (50) is projected (10) in a two-dimensional or three-dimensional representation by at least one headlight (41) or a holographic projector (42) of the means of transport (40).Method according to Claim 1 or 2, wherein the movement of the body part (52) of the living being (51) relative to the projected virtual object (50) is detected (11) by means of a surroundings sensor system (43) of the means of transportation (40).The method according to any of the preceding claims, wherein adjusting (13) the projection of the virtual object (50) comprises a movement or deformation of the virtual object (50).Method according to Claim 4, wherein environmental parameters (UP) are taken into account in the adaptation (13) of the projection of the virtual object (50).Method according to Claim 4 or 5, wherein, when adapting (13) the projection of the virtual object (50), a slowed-down or accelerated movement of the virtual object (50) takes place.Method according to one of the preceding claims, wherein additional information is communicated to the living being (51) using further interaction systems (60).Method according to one of the preceding claims, wherein the control of the light projection is subject to risk monitoring.A computer program comprising instructions which, when executed by a computer, cause the computer to carry out the steps of a method according to any preceding claim for controlling a light projection of a means of transport (40)Device (20) for controlling a light projection of a means of transportation (40), having: - a projection module (22) for projecting (10) at least one virtual object (50) into a surrounding area of the means of transportation (40); - a detection module (23) for detecting (11) a movement of a body part (52) of a living being (51) relative to the projected virtual object (50); and - a calculation module (24) for calculating (12) a virtual energy or impulse transfer onto the projected virtual object (50) on the basis of the detected movement and for adapting (13) the projection of the virtual object (50) in accordance with the virtual energy or impulse transfer.Means of transport (40), wherein the means of transport (40) comprises a device (20) according to claim 10 or is configured to carry out a method according to one of claims 1 to 8 for controlling a light projection.

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