Arrangement for a vehicle, lamp, vehicle and vehicle with an arrangement

Abstract

Arrangement with a spatial modulator (6) for light, with a light source (14) with which light can be directed via the modulator (6) to a light passage (12) of the arrangement (1), and with a camera (22) with which a light image can be captured via the light passage (12) and via the modulator (6), wherein the light image can be directed from the light passage to the camera (22) via the modulator (6), wherein a control means (30) is provided via which the light source (14) and / or the modulator (6) can be controlled depending on the light image captured via the camera (22).

Description

The invention is based on an arrangement for a vehicle, with which a light can be emitted. The invention furthermore relates to a light for a vehicle. A vehicle having such an arrangement is also provided. Furthermore, the invention relates to a method with the arrangement.Vehicles are sufficiently known from the prior art which have a vehicle lamp in the form of a headlight. During the day or at night, vision to a driver of the vehicle may be impaired by, for example, fog, rain, or other natural phenomena. In such a case, it would be conceivable to increase the brightness of the headlight. However, it has been shown that this substantially does not lead to a visual improvement. Moreover, legal regulations must be observed, which is why only a specific maximum brightness of the headlight is permitted. It is also known to adapt a light color and, for example, use yellow light or use fog lamps. This leads to an improvement in self-glare and cross-glare.DE 10 2017 219 092 A1 discloses a vehicle with a vehicle window. A camera inside the vehicle can record light images via the vehicle window. A portion of the vehicle window that lies within a viewing angle of the camera can be electrically controlled. As a result, an optical property of the section influencing the light transmission can be adjusted.In contrast, the object of the invention is to create an arrangement for a vehicle, a light, a vehicle and a method, with which / the visibility, in particular for a vehicle driver, is improved in a cost-effective and simple manner.The object with regard to the arrangement is achieved according to the features of claim 1, with regard to the luminaire according to the features of claim 10, with regard to the vehicle according to the features of claim 11 and with regard to the method according to the feature of claim 12.Particularly advantageous embodiments are found in the dependent claims.According to the invention, an arrangement, in particular for a vehicle or for a vehicle light, is provided which has a spatial modulator for light. Furthermore, the arrangement advantageously has a light source with which light can be emitted, in particular steerable, to a light passage of the arrangement via the modulator. The light that can be emitted by the light source can thus be steerable or deflectable in a targeted manner to the light output via the modulator. The light of the light source can be influenced and / or controlled via the modulator. Furthermore, the arrangement advantageously has a camera with which a light image or a camera image or a light can be detected via the light passage and via the modulator. In particular, the modulator can direct or redirect or specifically redirect or direct the light image entering via the light passage to the camera. This is done, for example, by guiding light through the light passage towards the modulator and via the modulator towards the camera. Further preferably, a control means or a control unit can be provided, by means of which the light source and / or by means of which the modulator is / are controllable depending on the light image captured by the camera.This solution has the advantage that the light that can be emitted by the light source can be adapted to an environment of the arrangement, that is to say to the light image that images the environment and can be captured by the camera. Thus, for example, poor vision due to fog, rain or other natural phenomena may be captured via the light image of the camera and the modulator and / or the light source may be controlled accordingly to improve vision, for example for a vehicle driver of a vehicle using the arrangement. In contrast to the prior art, for example to the fog lamp, the light that can be emitted by the arrangement can be dynamically adapted and is not static, as in the case of the fog lamp. It is thus possible to improve visibility of a surrounding area of the arrangement in a simple manner. Furthermore, the arrangement is extremely cost-effective compared to a system based on infrared and / or thermal radiation, for example. In addition, no display in the vehicle is required for the vehicle driver, on which display the image recorded via infrared and / or via thermal radiation is displayed. In the arrangement according to the invention, on the other hand, the emitted light is adapted as a function of the captured light image in such a way that the view of the environment is improved. In other words, by the combination of sensor system and actuator system in the arrangement, a natural image of the environment can be captured and enhanced by intelligent illumination.In a further embodiment of the invention, it can be provided that the control means has an image processing algorithm, in particular a computer-implemented image processing algorithm. This is preferably designed in such a way that the light image captured by the camera can be analyzed. The light source and / or the modulator can then advantageously be controlled via the control means as a function of the analysis of the light image.Advantageously, at least one image property and / or at least one image structure and / or edges and / or a contrast can be determined via the image processing algorithm for analysis in the light image captured by the camera. This is highly advantageous since, for example, edges and / or a contrast of the light image are / is an essential element that influences the visibility of an environment for a person. For example, it is conceivable that the control means then controls the modulator and / or the light source as a function of the detected edges and / or the detected contrast and / or as a function of the at least one image property and / or the at least one image structure, in order to improve the visibility of the environment and / or object recognition, in particular for the vehicle driver.In a further embodiment of the invention, it can be provided that the control means actuates the modulator and / or the light source as a function of the detected edges and / or the detected contrast in such a way that the contrast and / or the edges is / are enhanced at least in the environment detectable by the camera.Preferably, a continuous adaptation of the emitted light of the arrangement takes place by continuously capturing the light image and controlling the modulator and / or the light source by the control means as a function of the light image. It would also be conceivable to provide or test the adaptation of the modulator and / or of the light source via the control means at specific, in particular regular, times. It can thus be provided that the camera only captures a light image at specific, in particular regular, points in time.The light image detectable by the camera preferably corresponds at least partially or completely or substantially completely to the surrounding section of the environment that can be illuminated via the light source.Preferably, the control means can actuate the modulator and / or the light source as a function of the detected edges and / or the detected contrast in such a way that light emitted by the light source radiates outwards via the light passage and amplifies the contrast and / or the edges of the surrounding section of the environment detectable by a person, in particular the vehicle driver. The person can thus better perceive the contrast and / or the edges of the surrounding section, for example the surrounding area in the front of the vehicle. In other words, the control means can actuate the modulator and / or the light source as a function of the detected edges and / or the detected contrast in such a way that an overlay image is formed by the modulator, which overlay image is then superimposed on a surrounding section and / or is projected outwards.In other words, edges and / or contrast are detected in the light image of the camera or the camera image with the image processing algorithm and are reproduced in the headlight light or the light emitted by the light source. Thus, in the case of the proposed arrangement, the "genuine" image of the environment can be recorded and used for the illumination in such a way that the vehicle driver can capture the "genuine" environment with a higher contrast and / or improved edges.Such an image processing algorithm requires a short computing time, which is why latencies between the capturing of the light image and the driving of the modulator and / or the light source are extremely small. If, on the other hand, a radar sensor is used, for example, to detect the environment, the image detected by the radar sensor, for example, by a cyclist in fog, must be detected by the vehicle driver via a display. This is effected, for example, via an augmented reality head-up display (HUD), which illustrates the risk to the vehicle driver by artificial styling. For this purpose, the driver must then take his gaze at the HUD. In addition, it also takes a certain amount of time for a signal of the radar sensor to be correctly recognized by a driver assistance system. In contrast, in the arrangement according to the invention, the environment is illuminated in an improved manner, with the result that the vehicle driver can immediately perceive the environment in an improved manner. It can thus better identify a cyclist in the fog, for example. In addition, it is not necessary to clarify the risk to the vehicle driver, as in the case of a radar sensor and the HUD, which is why no sensor misinterpretations can occur in the arrangement according to the invention.In a further embodiment of the invention, the light passage is preferably formed by at least one objective, in particular by a projection objective. As a result, on the one hand, the light of the light source can be advantageously emitted into the environment and, on the other hand, the light image can be captured with a high quality by the camera.It is conceivable that a plurality of light passages are provided. It is conceivable, for example, for a light passage, in particular a light output for the light of the light source, and a light passage, in particular a light input for the light of the camera, to be provided. The advantage of a single light passage is that the arrangement is simpler and more cost-effective in terms of apparatus.In a further embodiment of the invention, the spatial modulator is a spatial micromirror actuator. This has, for example, a plurality of mirrors. These can be tiltable, in particular at a high frequency, in each case, in particular independently of one another, between two mirror positions and in each case form a light pixel. In a first position of a respective mirror, for example, the light from the light source can be reflected to the light passage. In contrast, for example, in the second position, the light image entering via the light passage can be directed to the camera. Thus, the spatial modulator has a simple dual function in terms of device technology, namely, on the one hand, to control the light that can be emitted by the light source and, on the other hand, to guide the light image to the camera if necessary. It is conceivable that the spatial modulator for light is a spatial light modulator (SLM). Alternatively, it is conceivable that the modulator is designed as a digital micromirror actuator (digital micro mirror device (DMG)) or as a liquid crystal display (LCD) or as one or more micro electro-mechanical system / s (MEMS) or liquid crystal-on silicon (ELCOS) and / or from monomaterial. It is also conceivable to configure the modulator in a digital or analog manner.At the first position of a mirror of the modulator, the light of the light source can be guided to the light output, which can be referred to as an ON state. In the second position, which can be designated as an OFF state, for example, light is usually guided to the beam dump in the prior art. In the case of the invention, the camera can be arranged at the location at which the beam dump is arranged in the prior art.In a further preferred embodiment of the invention, the camera is designed and arranged in such a way that it images the reflection plane of the modulator or the modulator plane from an oblique axis via an objective in Scheimpflug configuration. In other words, the image plane, in particular of a camera chip or image sensor, of the camera and a main plane of an objective of the camera and a projection plane or sharpness plane of the modulator are preferably arranged in such a way that they intersect in a common straight line, that is to say are preferably arranged according to the Scheimpflug rule. If a mirror is provided between the camera and the modulator in order to direct the light image via the modulator to the mirror and from there to the camera, a Scheimpflug configuration can likewise be provided. The projection plane or focal plane is then furthermore the modulator plane. Thus, an image of the environment can be recorded in the field of view of the spatial light modulator or modulator without parallax. In other words, the arrangement, in particular in the form of a light projector, has a dual function. The arrangement can be used simultaneously as an actuator, in particular by the modulator in combination with the light source (projector), and as an image sensor, in particular by the camera.This can be used in particular for light functions which are intended to reinforce or mark constituents of the environment or objects of the environment. For this purpose, it would be advantageous for the coordinates (for example of a pixel sensor) of the camera sensor to be brought into a direct, invariable relationship with the coordinates of the projected image, which is given by the parallax-free combination of sensor and actuator.In other words, the light image of the camera can be recorded without parallax by the Scheimpflug configuration, which enables improved analysis by the image processing algorithm. Preferably, the lens of the camera is tiltable or pivotable with respect to the image sensor of the camera in order to adjust the camera or macro camera as required.In a further embodiment of the invention, it can be provided that the camera has an image sensor with image pixels. These can then preferably be assigned to the light pixels of the modulator. Thus, in particular in the Scheimpflug configuration, a clear assignment of the image pixels to the light pixels can take place, in particular free of parallax. This makes possible an extremely simple analysis of the light image via the image processing algorithm. On the other hand, the clear assignment allows the modulator to be controlled very easily in order to emit the overlay image, for example. In a further embodiment, the respective image pixels and / or groups of image pixels can each be assigned to a light pixel and / or to a group of light pixels of the modulator. For example, it is conceivable that a group of four image pixels in each case is assigned to a single light pixel. As already mentioned above, the arrangement is preferably designed in such a way that the assignment and arrangement of the image pixels to the light pixels takes place without parallax.Preferably, the image sensor of the camera is read out with a specific frame rate during the camera function, for example between 30 to 60 Hz or in the KHz or MHz range. The read data are then preferably further processed by the image processing algorithm.In the preferred embodiment of the invention, it can be provided that a modulator is controlled via the camera in such a way that at least some or all of the mirrors is / are in the second switching position for recording a light image. The second switching position is the on or off state of the mirrors. Preferably, the light function takes place in the on state and the camera function in the off state. In other words, the camera is arranged in such a way that, in the second switching position of the mirrors, it detects the reflection of the environment imaged in the light passage by the light passage or by the objective or projection objective. The time period for the arrangement of the mirror in the second switching position is preferably selected such that the light source, in particular of the projector, is switched off during the image recording in order to avoid stray light in the system. In other words, the camera and the light source are controlled in such a way that the light source is switched off when the camera is used. The blanking duration, at which the light source is switched off, the mirrors are in the off state or in the off position or in the second switching position and the camera records the image, is preferably selected to be so short that the camera operation and / or the modulation is not perceptible to a person. The blanking duration is preferably ≤25 ms. In other words, the mirrors of the modulator are set during operation for such a short time to the corresponding mirror positions in order to record the light image with the camera that this is not perceptible to a viewer of an emitted light image.In a further embodiment of the invention, a mirror can be provided between the light source and the modulator. Alternatively or additionally, it is conceivable to provide a mirror between the modulator and the camera. A flexible and compact configuration of the arrangement is thus made possible.For a simple and compact arrangement in terms of device technology, it is conceivable to arrange the modulator on or for instance on a main axis of the light passage, in particular in the form of the objective. The camera and / or the light source can be arranged between the modulator and the light passage of the objective as viewed in the direction of the main axis. A main axis of the light emitted by the light source can preferably lie radially with respect to the main axis of the light passage of the objective and / or be arranged parallel to an extension plane of the modulator. It would also be conceivable to arrange the main axis of the light source obliquely or inclined with respect to the main axis of the light passage of the objective. A modulator side comprising the mirrors is preferably arranged perpendicular to the main axis, whereby the modulator has an extremely high efficiency.The modulator and the light passage, for example in the form of the objective, are preferably arranged in a row. The mirror or mirrors is / are provided, for example, adjacent to and / or outside the beam path between the modulator and the light passage. Thus, light can be deflected simply and economically in terms of apparatus via the deflection mirrors or the deflection mirrors to the modulator and / or from the light source. The deflecting mirrors are arranged, for example, approximately V-shaped with respect to one another. They can each form a leg of a Vs, wherein the legs are spaced apart from one another and do not touch. The deflecting mirror or mirrors can / can alternatively or additionally extend, for example, obliquely with respect to the direction of the main axis between the modulator and the light passage. They can extend away from the main axis between the modulator and the light passage with increasing distance from the modulator. Furthermore, they can be arranged, for example, symmetrically to one another. It is also conceivable for the camera and the light source to be arranged opposite one another, in particular in a plane.The light source or radiation source is preferably at least one light-emitting diode (LED). This can be present in the form of at least one individually packaged LED or in the form of at least one LED chip which has one or more light emitting diodes. A plurality of LED chips may be mounted on a common substrate ("submount") and form an LED or may be individually or jointly mounted on a board (e.g. FR4, metal core board, etc.) for example ("CoB"=chip on board). The at least one LED can be equipped with at least one dedicated and / or common optical unit for beam guidance, for example with at least one Fresnel lens or a collimator. Instead of or in addition to inorganic LEDs, for example based on AlInGaN or InGaN or AlIn-GaP, organic LEDs (OLEDs, e.g. polymer OLEDs) can generally also be used. The LED chips may be directly emitting or have a phosphor arranged upstream. Alternatively, the light-emitting component can be a laser diode or a laser diode arrangement. It is also conceivable to provide an OLED luminous layer or a plurality of OLED luminous layers or an OLED luminous region. The emission wavelengths of the light-emitting components can be in the ultraviolet, visible or infrared spectral range. The light-emitting components can additionally be equipped with a separate converter. The LED chips preferably emit white light in the standardized white ECE field of the automobile industry, for example realized by a blue emitter and a yellow / green converter.Furthermore, it is conceivable that the at least one light source can be designed as a light source operating according to a laser activated remote phosphor (LARP) principle, and / or as a halogen lamp, and / or as a gas discharge lamp (high intensity discharge (HID)), and / or in conjunction with a projector operating according to a digital light processing (DLP) principle, and / or as an IR radiation source, and / or as another device emitting, reproducing and / or generating electromagnetic radiation in and / or partially in and / or close to and / or partially close to the visible range.In a further preferred embodiment of the invention, it would be conceivable to use at least one light source in a specific color in addition or as an alternative to a white light source or to white light sources. For example, a plurality of light sources in different colors can also be provided, such as at least one light source for red light, at least one light source for green light and at least one light source for blue light. It would also be conceivable to use one or more RGB LED / s as the light source. Alternatively or additionally, it would be conceivable to use light sources with different color temperatures. For example, two white LEDs with different color temperatures could be used. As a result of this configuration, the colors and / or color temperatures and / or color tones could be adapted in the overlay image in order to further improve the visibility of objects.Alternatively or additionally, an infrared (IR) light source could be provided as the light source. The camera is advantageously designed as an IR camera. Thus, the light image of the environment of the assembly could be recorded by the camera using the IR light source.It would also be conceivable to provide a system with two arrangements. These could then be controlled in dependence on one another, in order for example to form a light image or overlay image together.According to the invention, a luminaire, in particular a vehicle luminaire, in particular for a vehicle, is provided with at least one arrangement according to one or more of the preceding and / or below aspects.The luminaire can be designed, for example, as a front lamp or front headlight or rear lamp or rear headlight or as a fog lamp. Furthermore, it is conceivable to use the luminaire alternatively or additionally for a signal light function and / or for a lighting function. For example, a turn signal function and / or a brake light function and / or a tail light function and / or a daytime running light function and / or a position light function and / or a fog light function and / or a combination of the aforementioned and further functions is provided as the signal light function. A bending light function and / or a fog light function and / or a low beam function and / or a high beam function and / or a combination and / or modification (for example, adaptive driving beam (ADB) or adaptive front lighting system (AFS)) of the aforementioned and further functions can / can be provided as the illumination function / s. AFS is an adaptive system that preferably adaptively controls all or at least a portion of the illumination functions. It can be used, for example, in the case of the low beam and high beam function and can provide a freeway light and / or a poor weather light and / or a city light. ADB is preferably used at high beam and may provide glare-free high beam. ADB is, for example, a part of AFS. A further field of application for the luminaire can be: effect lighting, entertainment lighting, architectural lighting, medical and therapeutic lighting, lighting for horticultural (Hospital).The light source of the arrangement can preferably be used in the luminaire for one or more of the light functions mentioned above. Thus, the light source can have at least one dual or multiple function, namely to be used for an overlay image and additionally to perform one or more of the aforementioned functions. This can be effected, for example, by appropriate control of the modulator and / or of the light source.In a preferred embodiment, a plurality of light sources are provided. It is conceivable that a respective light source irradiates a respective section of the modulator. It is further conceivable that a part of the sections or all of the sections overlap. The light sources can also each irradiate the modulator completely or over the full surface. One or more sections of the modulator can be irradiated, for example, by a plurality of light sources in order to irradiate specific regions, such as a roadway, with a higher light intensity in the emitted light image. The light sources can be embodied identically. It would also be conceivable to configure the light sources or a part of the light sources differently, that is to say to use different types of light sources, for example. If, for example, a laser light device / s is used as the light source / s, it is conceivable that the device / s are configured such that the laser light can travel or scan over the individual mirrors at least in sections.If at least one individual light source is provided, it can irradiate the modulator over the full surface or partially, or a light beam, for example a laser beam, can travel over the modulator at least in sections.It is conceivable to provide at least one or more of the following operating situations for the arrangement. In an, for example first, operating situation, the light source of the arrangement can be used to represent specific objects or image regions or image parts in an improved manner for the vehicle driver, that is to say to generate an overlay image. This is the case, for example, when daylight is present and therefore no additional light, such as low beam or high beam, is necessary. In a second, for example, operating situation, the light source of the arrangement is used in addition to the illumination, in addition to the formation of the overlay image, that is to say for example additionally as a low beam, fog light or high beam. This is preferably done when little or no daylight is present.In the, for example first, operating situation, the modulator is preferably activated when the light source is switched on in such a way that the determined overlay image is emitted. This means that, for example, the corresponding mirrors of the modulator are switched, that is to say are in an on state, for example, such that certain objects are better visible.In the, for example, second, operating situation, the light source is switched on for illumination, for example as a low beam, at least if the camera does not record an image. To form the overlay image, the corresponding mirrors of the modulator are switched, whereby one part of the mirrors is in the on state and the other part of the mirrors is in the off state. Thus, a part of the light is emitted to the outside via the mirrors which are in the on state to form the overlay image. Preferably, it is provided here to increase the intensity of the light source when emitting the overlay image. The intensity is then reduced and the mirrors are controlled in accordance with the required function, such as a low beam. This described process is repeated at a specific frequency (i.e. preferably the mirrors are switched at a specific frequency and the intensity of the light source is increased at a specific frequency), which is preferably selected such that a person, for example the vehicle driver, does not perceive the change between the functions.In other words, the light sources are pulsed during the projection of the overlay image, that is to say the DMD is operated in clocked fashion and the brightness of the other LEDs which do not emit into the overlay region can be reduced at the same time. Thus, an increased brightness of the overlay area (and possibly a reduced brightness of the normal area) can be achieved.Preferably, two lights are provided which are controlled in dependence on one another.The applicant reserves the right to address an independent claim to a system with at least two lamps or with at least two arrangements.According to the invention, a vehicle having at least one arrangement according to one or more of the preceding aspects and / or having at least one luminaire according to one or more of the preceding aspects is provided.The vehicle may be an aircraft or a waterborne vehicle or a landborne vehicle. The landborne vehicle can be a motor vehicle or a rail vehicle or a bicycle. The vehicle is particularly preferably a truck or a passenger car or a motorcycle. The vehicle may further be configured as a non-autonomous or partially autonomous or autonomous vehicle.According to the invention, a method with an arrangement according to one or more of the preceding aspects is provided. The control means can then advantageously be used to control the light source and / or the modulator as a function of the light image captured via the camera.Disclosed is an arrangement or a projector headlight having a modulator, in particular having a DMD (Digital Mirror Device). A projection objective of the arrangement not only images the image content of the modulator in the environment, but also images the environment on the modulator. Thus, the modulator may guide the image of the environment to a camera and reflect light from a light source into the environment.The invention is explained in more detail below with reference to an exemplary embodiment. The figures show: FIG. 1 shows a schematic illustration of an arrangement for a vehicle according to an exemplary embodiment, FIGS. 2 ato 3 ceach schematically show a surrounding section of the arrangement from FIG. 1According to FIG. 1, an arrangement 1 for a vehicle light 2 is shown. The vehicle lamp 2 is schematically shown with a dash-dotted line. The vehicle light 2 may in turn be part of a vehicle 4 which is marked with the same dash-dot line for the sake of simplicity. The arrangement 1 has a modulator 6 which is arranged on a printed circuit board 8. The modulator 6 is designed, for example, as a digital micromirror actuator or DMD. On its modulator side 10 facing away from the printed circuit board 8, it has a multiplicity of mirrors or micromirrors, which each form a light pixel and can be tilted between two mirror positions. The modulator 6 has its modulator side 10 facing a light passage of the arrangement 1 with an objective 12.Furthermore, the arrangement 1 has a light source 14, via which light 16 can be emitted towards a deflection mirror 18. Via this, the light 16 is directed to the modulator side 10 of the modulator 6. The deflecting mirror 18 and the light source 14 are arranged in such a way that the light 16 radiates approximately radially or perpendicularly with respect to a main axis 20 of the objective 12 to the deflecting mirror 18. Viewed in the direction of the main axis 20, the modulator 6 is arranged in the row to the objective 12. Furthermore, the light source 14 is arranged between the modulator 6 and the objective 12 radially outside the main axis 20, as seen in the direction of the main axis 20. In a first position of a respective mirror of the modulator 6, the respective light impinging on its respective mirror is then reflected toward the objective 12 in order to be emitted into the environment.Furthermore, the arrangement 1 from FIG. 1 has a camera 22. The camera is designed, for example, as a CCD or CMOS camera having a multiplicity of sensor pixels. The sensor pixels can be implemented with or without color filters. This has an image sensor 24, which is arranged, for example, in such a way that it extends approximately perpendicular to the plane of the modulator side 10 of the modulator 6 and / or at a parallel distance from the main axis 20, and it preferably points light towards the main axis 20, or a light image that can enter the arrangement 1 via the objective 12 in a second position, the mirrors of the modulator 6 can be directed towards a deflection mirror 26. The light image can be guided further via the latter to the camera 22, in particular to the image sensor 24. In order that the image sensor 24 can record the light entering via the objective 12 without parallax, the camera 12 has a pivotable or tiltable lens or objective 28. the camera 22 can thus image the modulator side 10 of the modulator 6 via the objective 28 in a Scheimpflug configuration from an oblique axis. That is to say that the camera can then image the light image reflected via the modulator 6 without parallax in the second switching position of the mirrors of the modulator 6 or of a part of the mirrors of the modulator 6. This allows simple assignment of the image pixels of the image sensor 24 and the light pixels of the modulator 6.Furthermore, the arrangement 1 can have a control means or be connected to a control means wirelessly or via cables. The control means is designed, for example, as a control unit 30. The control unit 30 can control, for example, the light source 14 and / or the camera 22 and / or the modulator 6. Furthermore, the control means, in particular in the form of the control unit 30, or a further control means, which is provided in the arrangement 1 or is connected to the arrangement 1 via cable or wirelessly, can be provided with an image processing algorithm 32.The image processing algorithm can be used to perform pattern recognition in which, for example, one or more of the following methods can be used: gray value correlation; geometric or edge-based pattern recognition; pattern recognition using feature trees. Alternatively or additionally, an artificial intelligence (AI) method, for example for classification, would be to be used or another method would be usable. If no AI method is used, the latency of the image processing algorithm could possibly be reduced, due to lower computational costs. In the arrangement 1, the object or image recognition of the image processing algorithm is preferably designed such that certain image contents, such as edges, can be determined. The light of the light source 14 can then be formed via the modulator 6 in such a way that, on the basis of the determined image contents, such as the edges, the view, for example for a vehicle driver, is improved. Requirements for object detection of the arrangement 1 can be lower in comparison to object detection in, for example, driving assistance systems. In driving assistance systems, very reliable object recognition is fundamental. In contrast to driving assistance systems, in the arrangement 1, for example the vehicle driver, is provided with improved illumination and the latter furthermore independently carries out the control of the vehicle. The image processing algorithm can thus be configured comparatively simply and / or require comparatively low computing capacities, which leads to a low latency time. If, for example, a computer-implemented neural network is used as the AI method, the demands on training data for training the network are comparatively low. The neural network can also be comparatively simple.With reference to FIGS. 2 ato 2 c, an use of the arrangement 1 from FIG. 1 will now be explained in the following. According to FIG. 2 a, a section of the surroundings of the vehicle 4 is shown, which is a front view of a vehicle driver and a front surroundings of the vehicle. A road 34 is visible here, on which a person 36 stands. Furthermore, a tree 38 is shown. In addition, it is night and misty. The light source 14 of the arrangement 1 from FIG. 1 emits light with the modulator 6 in the forward orientation of the vehicle, i.e. at least onto the road 34 and onto objects, such as for example onto the person 36, which are present in the illuminated region. For this purpose, the mirrors or at least a part of the mirrors of the modulator 6 are in their first switching position. In order to improve the visibility, a light image of a part of the surrounding section shown in FIG. 2 ais guided via the objective 12 of the arrangement 1 from FIG. 1 to the modulator 6. At least some or all of the mirrors are then briefly switched into their second switching position via the control unit 30. The light image is then guided via the deflecting mirror 26 and the objective 28 to the image sensor 24 and captured by the latter. The light image is then analyzed via the image processing algorithm 32 and a contrast is determined. An overlay image 40 is then determined therefrom, which is shown in FIG. 2 b. The mirrors of the modulator 6 are now controlled by the control unit 30 in such a way that the light 16 of the light source 14 forms the overlay image 40 after the modulator 6. This is then projected via the objective 12 into the environment, preferably at least partially or completely into the region which can be detected by the camera. The result is then shown in FIG. 2c. It can be seen that a part of the surrounding section is irradiated with a modulated light distribution, i.e. with the overlay image 40 from FIG. 2 b. A contrast is thus clearly enhanced and immediately perceptible to a vehicle driver.Overlay image 40 is preferably generated by appropriate control of modulator 6. The camera 22 preferably records the light images or images in the dark state, i.e. when the light source 14 is switched off. Thus, advantageously, no synchronization or adaptation of overlay regions and specific regions of the light image is required.According to FIGS. 3 aand 3 c, a further possibility of improving vision for a vehicle driver is shown. FIG. 3a corresponds to FIG. 2a. In contrast to FIGS. 2a to 2c, the image processing algorithm 32 analyzes the light image in such a way that edges can be determined. The control unit 30 from FIG. 1 thus determines an overlay image 42, see FIG. 3 b, in which an edge enhancement takes place. The overlay image 42 from FIG. 3 bis then emitted by the arrangement 1 into the environment in which the modulator 6 is controlled accordingly via the control unit 30. The overlay image 42 projected into the environment together with the environment can be seen in FIG. 3c. The edges of the surrounding section in the region of the projected overlay image are clearly more visible to the vehicle driver.A size of the overlay image in the embodiments may preferably be adjusted, in particular by the control unit. This is preferably done by the modulator being controlled accordingly. The size of the overlay image is determined, for example, as a function of the object size / n and / or the object position / s of the object or of the objects which are to be illuminated to an increased extent.It is conceivable that an overlay image is determined and / or formed, in which both the contrast and the edges are enhanced. In addition, alternatively or additionally conceivable is to create an overlay image in which alternatively or additionally at least one other property of the light image and or alternatively or additionally at least one other image structure is / are determined and / or amplified.LIST OF REFERENCE CHARACTERS1 Arrangement 2 Vehicle lamp 4 Vehicle 6 Modulator 8 Printed circuit board 10 Modulator side 12 Objective 14 Light source 16 Light 18 Deflection mirror 20 Principal axis 22 Camera 24 Image sensor 26 Deflection mirror 28 Objective 30 Control unit 32 Image processing algorithm 34 Road 36 Person 38 Tree 40 Overlay image

Claims

Arrangement having a spatial modulator (6) for light, having a light source (14) with which light can be directed via the modulator (6) to a light passage (12) of the arrangement (1), and having a camera (22) with which a light image can be detected via the light passage (12) and via the modulator (6), the light image being capable of being directed via the modulator (6) from the light passage to the camera (22), a control means (30) being provided via which the light source (14) and / or the modulator (6) can be controlled as a function of the light image detected via the camera (22).Arrangement according to claim 1, wherein the control means (30) comprises an image processing algorithm (32) configured such that the light image captured by the camera (22) is / are analyzable, wherein the light source (14) and / or the modulator (6) is / are controlled in dependence on the analysis of the light image via the control means (30).Arrangement according to Claim 2, wherein at least one image property and / or an image structure and / or a contrast and / or edges can be determined by the image processing algorithm (32) for analysis in the captured light image.Arrangement according to claim 3, wherein the control means (30) controls the modulator (6) as a function of the at least one captured image property and / or the image structure and / or the captured edges and / or the captured contrast.Arrangement according to Claim 3 or 4, wherein the control means (30) actuates the modulator (6) as a function of the detected edges and / or the detected contrast in such a way that the contrast and / or the edges on the output side of the arrangement can be perceived to an increased extent by a viewer.Arrangement according to one of the preceding claims, wherein the spatial modulator (6) has a plurality of mirrors which are each tiltable between two mirror positions and each form a light pixel, wherein in a first mirror position of a respective mirror the light of the light source (14) is reflected to the light passage (12) and in a second mirror position the light image entering via the light passage (12) is guided to the camera (22).Arrangement according to one of the preceding claims, wherein the camera (22) is designed and arranged in such a way that the light image can be captured via the modulator (6) via an objective (28) of the camera (22) in Scheimpflug configuration, wherein the modulator (6) has a reflection plane (10) which is arranged perpendicular to a main axis (20) of the light passage (12).Arrangement according to Claim 6 or 7, wherein the camera (22) has an image sensor (24) with image pixels which are each assigned to one or more light pixels of the modulator (6) or to which one or more light pixels of the modulator (6) are each assigned.Arrangement according to one of the preceding claims, wherein a deflection mirror (18) is arranged between the light source (14) and the modulator (6) and / or wherein a deflection mirror (26) is arranged between the modulator (6) and the camera (22).A luminaire for a vehicle, comprising an arrangement (1) according to one or more of the preceding claims.Vehicle having an arrangement according to one or more of Claims 1 to 9 or having a luminaire according to Claim 10.Method with an arrangement according to one or more of Claims 1 to 9, wherein the control means (30) controls the light source (14) and / or the modulator (6) as a function of the light image captured via the camera (22).

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