CN116324585A - Projection device for presenting image representations - Google Patents

Abstract

A projection device (22) for rendering an image representation is proposed, the projection device comprising: a lighting unit (32) for emitting light rays (34); and deflecting means for deflecting the light rays (34) (38). The projection device (22) has at least two projection areas (30, 40, 42), wherein the at least two projection areas (30, 40, 42) are arranged spatially apart from each other, wherein the lighting unit (32) The emitted light (34) can be deflected by means of the deflection device (38) in the direction of one of the at least two projection areas (30, 40, 42).

Description

Projection device for presenting image representations

Background technique

A projection device, in particular for a vehicle, is known from DE 10 2017 218 960 A1 for generating images in the interior of a vehicle, the projection device having a projector with a projection device arranged in a housing A head for producing an image on at least one projection zone.

Contents of the invention

A projection device for presenting an image representation is proposed, the projection device comprising: a light emitting unit for emitting light; and deflecting means for deflecting the light. The projection device has at least two projection fields, wherein the at least two projection fields are arranged spatially apart from one another. The light emitted by the lighting unit can be deflected selectively in the direction of one of the at least two projection areas by means of the deflection device.

For example, the projection device can be arranged, in particular, in an instrument cluster, a dashboard, a pillar of a vehicle, in particular in an A-pillar and/or a B-pillar and/or in or on a roof. Furthermore, the projection field can be arranged or integrated in the dashboard, in the windshield or in the side windows of the vehicle. With the aid of the projection device, information can be displayed to observers, for example vehicle occupants, for example the driver and/or the co-driver. For example, information about the status of the vehicle can be displayed. For example, the vehicle mode can be displayed by means of a projection device. The output information can be, for example, information about the state of the vehicle, such as speed, rotational speed readings, fuel tank level, and/or information about the vehicle's navigation and/or entertainment system. Projection devices may also be referred to as display devices.

An advantage of the invention is that one or more image representations can be presented on different spatially separated projection areas by means of one projector. As a result, in particular the use of a plurality of projectors can be reduced or avoided, whereby installation space in particular can be saved. Preferably, the complexity of the projection device can be reduced through this. It is also possible to reduce expenditures, such as the cost of purchasing projectors and/or the wiring and handling required for multiple projectors. As a result, in particular fewer components are required in the projection device, so that the weight in particular can be reduced. In particular, a smaller oscillation tendency can also be achieved. Through this, in particular a safe and/or reliable presentation of the image representation on one of the at least two projection fields can be achieved.

In an advantageous embodiment, the at least two projection areas can be arranged on at least two window panes in the vehicle. Thereby, image representations may be presented to one or more vehicle occupants on different window panes in the vehicle. Through this, in particular a safe and/or reliable presentation of the image representation on one of the at least two projection fields can be achieved.

In a further development, the deflecting device can be arranged in at least two positions, wherein the light beam can be deflected in the direction of one of the at least two projection areas by means of at least two positions of the deflecting device. Preferably, the deflecting device can be arranged in a first position and a second position, wherein the light can be deflected in the direction of the first projection area by means of the deflecting device arranged in the first position, and wherein the light can be deflected in the direction of the first projection area by means of the deflecting device arranged in the second position. The positional deflection device deflects in the direction of the second projection area. Through this, a safe and/or reliable presentation of the image representation on the first projection area or the second projection area can be achieved. By changing the position of the deflection device, in particular simple and/or reliable switching between the presentation of image representations on different projection fields can be achieved. The dynamic movement of the deflection device enables rendering on one of the at least two spatially separated projection fields, in particular with high rigidity of the arrangement of the projection device and of the arrangement of the deflection device.

In an exemplary refinement, the deflection device can be mounted in a rotatable manner, wherein the deflection device can be rotated into at least two positions. As a result, the deflection device can be moved in particular safely and/or reliably towards at least two positions, whereby a simple and/or reliable representation of the image representation on one of the at least two projection fields can be achieved.

The deflection device may also be arranged in a movable manner such that the deflection device can be moved to at least two positions. As a result, the deflection device can be moved in particular safely and/or reliably towards at least two positions, whereby a simple and/or reliable representation of the image representation on one of the at least two projection fields can be achieved. In particular, the movement of the deflection device can be designed such that a high rigidity of the suspension or the arrangement of the deflection device in the projection device can be achieved.

Advantageously, the deflection device can have at least two different optical surfaces for deflecting the light in the direction of one of the at least two projection areas. In a further development, the deflection device can have a first optical surface, wherein the light rays can be deflected in the direction of the first projection area by means of the first optical surface, and the deflection device can also have a second optical surface, wherein the light rays can be deflected by means of the first projection area. The two optical surfaces are deflected toward the direction of the second projection area. An adaptation of the image representation to the distance of these projection fields from the deflection device or from the projector can thus be achieved. As a result, the image representation can be presented in particular in a safe and/or reliable manner and can be adjusted clearly for a viewer, in particular a vehicle occupant. Free-space projection is possible since the image representations projected on different projection areas can be clearly represented separately.

In addition, the deflection device can have, in particular, a first optical surface, whereby light can be deflected by means of the first optical surface in the direction of the first projection field if the deflection device is arranged in the first position, and the deflection device can, in particular, have a second optical surface surface, wherein if the deflection device is arranged in the second position, the light rays can be deflected in the direction of the second projection area by means of the second optical surface. In particular, image representations can be rendered safely and/or reliably by this. Advantageously, the image representation can be adjusted for clarity to the vehicle occupants.

In an exemplary embodiment, the deflection device can have at least two different optical surfaces configured as mirrors for deflecting the light in the direction of the at least two projection fields. By using a mirror, in particular, the image representation can be transmitted or deflected in the direction of the projection field in a safe and/or reliable manner and can be represented on the projection field.

In an advantageous refinement, the image representation can be represented on one of at least two projection fields. Preferably, the image representation can be presented on a first projection area and/or on a second projection area spatially separated from the first projection area. Through this, the image representation can be presented to one or more observers of the projection area on different projection areas as desired. As a result, a safe and/or reliable representation of the image representation can be achieved, whereby the viewer can perceive the image representation in particular reliably.

In particular, the projection device can also have at least three projection fields, wherein the at least three projection fields are arranged spatially apart from one another, and wherein the light emitted by the luminous unit can be projected towards the at least three projection fields by means of a deflection device. The orientation of one of the faces is deflected. As a result, the image representation can be presented in particular safely and/or reliably on one of the different projection fields. Preferably, it can be achieved that the viewer can particularly reliably perceive the image representation on the corresponding projection field.

A method for rendering an image representation by means of a projection device according to any one of the preceding claims is also proposed, the method having the following steps:

emitting light in the direction of the deflection means by means of the light-emitting unit;

The light emitted by the lighting unit is selectively deflected in the direction of one of the at least two projection regions by means of the deflection device.

In particular, a simple and/or reliable deflection of the light rays can thereby be achieved, whereby an image representation can be reliably presented on one of the projection fields.

Preferably, the method also has the step of rendering the image representation on the first projection area and/or on a second projection area spatially separated from the first projection area. As a result, the image representation can be rendered particularly reliably on one of the two projection fields.

The method may also have a further step of changing the position of the deflection means for selectively deflecting the light emitted by the light emitting unit towards one of the at least two projection areas. By varying the position of the deflection device, it can be ensured in particular reliably that the light is transmitted or deflected in the direction of the corresponding projection surface. Through this, a reliable rendering of the image representation on one of these projection areas can be achieved.

Description of drawings

Exemplary embodiments of the invention are shown in the drawings and are explained in more detail in the ensuing description. The same reference numerals are used for elements shown in different figures and having a similar effect, a repeated description of these elements being omitted. in:

Figure 1 shows a schematic top view of a vehicle with a projection device;

FIG. 2 shows a schematic diagram of a fragment of a vehicle with a projection device;

Figure 3 shows a schematic diagram of a projection device;

FIG. 4 shows a schematic diagram of a fragment of a vehicle with a projection device;

FIG. 5 shows a schematic diagram of a fragment of a vehicle with a projection device according to an embodiment of the invention;

Fig. 6 shows a schematic diagram of a part of a projection device according to an embodiment of the present invention;

Figure 7 shows a schematic diagram of a part of a projection device according to an embodiment of the present invention;

Figure 8 shows a schematic diagram of a part of a projection device according to an embodiment of the present invention;

Fig. 9 shows a schematic diagram of a method for presenting an image representation according to an embodiment of the present invention;

Fig. 10 shows a schematic diagram of a method for presenting an image representation according to an embodiment of the present invention;

Fig. 11 shows a schematic diagram of a method for presenting an image representation according to an embodiment of the present invention.

Detailed ways

FIG. 1 shows a schematic plan view of a vehicle 20 , for example a motor vehicle, for example an automobile, with a projection device 22 . Projection device 22 is designed to display or present at least one image representation to an observer 24 of projection device 22 . Observer 24 may in particular be a vehicle occupant 24 located in interior 26 of vehicle 20 , for example a driver and/or a co-driver of vehicle 20 . Alternatively or additionally, the observer can also be located outside the vehicle 20 . Projection device 22 is arranged in vehicle 20 such that an observer 24 can observe the information presented by means of projection device 22 . The projection device 22 may be configured or referred to as a display device 22 .

Projection device 22 may be arranged, for example, in dashboard 28 or dashboard 28 of vehicle 20 . Alternatively or additionally, the projection device or the other projection device 22 may be arranged elsewhere in the dashboard of the vehicle 20, for example on the roof 29, in the rearview mirror or on the pillars 20 of the vehicle, such as the A-pillar and/or or at the B-pillar.

The projection device 22 has a projection area 30 or a display area 30 and a light emitting unit 32 . The lighting unit 32 can be designed, for example, as a projector 32 or an imager 32 . The projector 32 can be configured, for example, as a digital mirror display or a DMD system, a DLP or a digital light processor or as an LCOS imager or liquid crystal on silicon or as an imager based on a transparent LCD, such as an active Matrix display, or configured as a laser scanner. In an advantageous embodiment, projector 32 includes in particular one or more light sources. The light source of projector 32 or imager can be, in particular, an LED or a semiconductor laser, such as a laser diode or LD.

Information about the vehicle, for example vehicle status information, or information about the vehicle mode, such as speed and/or rotational speed and/or temperature and and/or fuel tank level and/or navigation indications and/or information from the vehicle entertainment system and/or other information.

The projection device 22 can also have a housing, optionally with a heat sink, and corresponding electronics for operating the components.

FIG. 2 shows a schematic view of a section of a vehicle 20 from the side with the projection device 22 . The projection device 22 according to FIG. 2 can be designed in particular according to the projection device 22 of FIG. 1 . Furthermore, projection device 22 according to FIG. 2 may be arranged in vehicle 20 , in particular according to projection device 22 from FIG. 1 . In this advantageous embodiment, projector 32 is arranged on roof 29 and projection field 30 is arranged in or on windshield 33 . Projector 32 emits light 34 in the direction of projection area 30 for rendering an image representation on projection area 30 .

FIG. 3 shows a schematic diagram of the projection device 22 . The projection device 22 has a projector 32 and a projection area 30 . Projector 32 may emit light 34 . Projector 32 and projection field 30 are arranged, in particular relative to each other, such that light rays 34 emitted by projector 32 are directed onto projection field 30 for image representation 35 , in particular a real image representation. In other words, the light rays 34 emitted by the projector 32 are guided in the direction of the projection field 30 , whereby an image representation 35 , in particular a real image representation, is produced on the projection field 30 .

FIG. 4 shows a schematic illustration of a section of a vehicle 20 with a projection device 22 . The projection device 22 according to FIG. 4 can be designed in particular according to the projection device 22 of FIG. 1 , FIG. 2 or FIG. 3 . Furthermore, projection device 22 according to FIG. 4 may be arranged in vehicle 20 , in particular according to projection device 22 from FIG. 1 or 2 . In this advantageous embodiment, projector 32 is arranged on vehicle roof 29 and projection field 30 is arranged in a window pane, in particular side window pane 36 , of vehicle 20 . Projector 32 emits light 34 in the direction of projection area 30 for rendering an image representation on projection area 30 .

FIG. 5 shows a schematic illustration of a section of a vehicle 20 with a projection device 22 according to an exemplary embodiment of the invention. The projection device 22 according to FIG. 5 can be designed in particular according to the projection device 22 of FIG. 1 , FIG. 2 , FIG. 3 or FIG. 4 . Furthermore, projection device 22 according to FIG. 5 may be arranged in vehicle 20 , in particular according to projection device 22 from FIG. 1 , 2 or 4 . In this advantageous embodiment, projector 32 is arranged on vehicle roof 29 and a plurality of projection fields are arranged in the window pane of vehicle 20 .

Projection device 22 is designed to present image representations. The projection device 22 includes: a light emitting unit 32 or a projector 32 for emitting light 34 ; and a deflecting device 38 for deflecting the light 34 . The projection device 22 also has at least two projection fields 30 , 40 , 42 , wherein the at least two projection fields 30 , 40 , 42 are arranged spatially apart from one another. In this advantageous embodiment, the projection device 22 has three projection fields 30 , 40 , 42 , in particular a first projection field 30 , a second projection field 40 and a third projection field 42 . In particular, the at least three projection fields 30 , 40 , 42 can be arranged spatially apart from one another. Alternatively, the projection device 22 can also have two projection fields, in particular a first projection field 30 and/or a second projection field 40 and/or a third projection field 42 . In other words, the image representation may be presented on different surfaces in the vehicle, wherein the image representation is visible from the inside to the vehicle occupants and/or is visible from the outside of the vehicle. In an alternative embodiment, a portion of the image representation may be visible to a vehicle occupant, and a portion of the image representation may be visible to an observer outside the vehicle.

The at least two projection fields 30 , 40 , 42 are arranged on at least two window panes in the vehicle 20 . For example, the first projection field 30 can be arranged on the windshield 33 of the vehicle 20 or on the rear window of the vehicle. Furthermore, the second projection field 40 can be arranged on the first side pane 36 , for example on a side pane of the vehicle 20 . Furthermore, the third projected area 42 can be arranged on a second side pane 44 , for example on a side pane of a side door of the vehicle 20 . In particular, second side pane 44 may be arranged opposite first side pane 36 of vehicle 20 .

The light 34 emitted by the lighting unit 32 can be deflected selectively in the direction of one of the at least two projection areas 30 , 40 , 42 by means of the deflection device 38 . In a further development, the light ray 34 emitted by the lighting unit 32 can be deflected selectively in the direction of one of the at least three projection areas 30 , 40 , 42 by means of the deflection device 38 . In other words, projector 32 emits light 34 in the direction of deflection device 38 , wherein by means of deflection device 38 the light is selectively deflected in the direction of one of projection areas 30 , 40 , 42 so that in these projection areas 30 , 40 , 42, or may present an image representation. In other words, the lighting unit 32 emits light rays 34 which are deflected in the direction of the first projection field 30 by means of the deflection device 38 for the image representation on the first projection field 30 . The light unit 32 also emits light rays 34 which are deflected by means of a deflection device 38 in the direction of the second projection field 40 for the image representation on the second projection field 40 . The light unit 32 also emits light rays 34 which are deflected by means of a deflection device 38 in the direction of the third projection area 42 for the image representation on the third projection area 42 .

In order to deflect the light beam 34 , the deflection device 38 can in particular be arranged in at least two positions, wherein the light beam 34 can be selectively directed towards the at least two projection areas 30 , 40 , 42 by means of the at least two positions of the deflection device 38 One of the directions is deflected. In other words, the deflection device 38 can be arranged in a first position and a second position. In particular, the light beam 34 can be deflected in the direction of the first projection area 30 by means of the deflection device 38 arranged at the first position, wherein the light beam 34 can be deflected in the direction of the second projection area 40 by means of the deflection device 38 arranged at the second position deflection.

Preferably, the deflection device 38 can be mounted in a rotatable manner, so that the deflection device 38 can be rotated into at least two positions, in particular into a first position and into a second position. In a further development, the deflection device 38 can be rotated into a third position. In other words, the deflection device 38 can in particular have a swivel joint, wherein the deflection device 38 can be rotated into different positions by means of the swivel joint. In other words, the deflection device 38 can be configured as a module with a plurality of optical surfaces, in particular mirrors or holographic elements, wherein the deflection device 38 can be adjusted by means of rotation. In an alternative embodiment, the position of the deflection device 38 can be formed by rotation about one or more axes. In other words, the deflection device 38 can be mounted in a rotatable manner by means of a low-backlash pivot bearing or a pivot bearing which is preloaded by a spring and is non-reflective.

In an alternative embodiment, the deflection device 38 may be arranged in a movable manner such that the deflection device 38 can be moved to at least two positions. In a further development, the deflection device 38 is arranged displaceably into a third position. In other words, the deflection device 38 can be moved to the first position or to the second position or to the third position. For example, the deflection device 38 can be designed as a sliding element, for example as a sliding element on a rail. In other words, the deflection device 38 can be configured as a module with several optical surfaces, in particular mirrors or holographic elements, wherein the deflection device can be adjusted by means of a movement along the track, in particular by means of a linear movement. In other words, a plurality of mirrors with different optics can be arranged on the carriage in a linearly movable manner. For example, the deflection device 38 can have a stepper motor for the movement. In a further development, the position of the deflection device 38 can be limited by means of a stop. Through this, high accuracy of the position can be ensured. In a further development, the deflection device 38 can in particular be automatically adjusted such that the image representation is presented, for example, on the projection field observed by the observer. This can be detected, for example, by means of an interior space camera and corresponding algorithms.

In a further development, the deflection device 38 can have at least two different optical surfaces for deflecting the light in the direction of one of the at least two projection areas 30 , 40 , 42 . In other words, the deflection device 38 may have: a first optical surface for deflecting the light 34 toward the first projection area 30 ; and a second optical surface for deflecting the light toward the second projection area 40 . In a further development, the deflection device 38 can have a third optical surface for deflecting the light in the direction of the third projection area 42 . In other words, the deflection device 38 may have: a first optical surface, wherein light rays can be deflected toward the direction of the first projection area 30 by means of the first optical surface; and a second optical surface, wherein light rays can be directed toward The direction of the second projected area 40 is deflected. In a further development, these optical surfaces can be formed straight or curved. In particular, the conversion or adjustment of the projection area can be carried out by exchanging the optical surface, wherein the optical surface is designed in particular as a plurality of mirror optics or holographic elements on a rotatable polygonal plate. In an alternative embodiment, the conversion of the projection area can be carried out in particular by exchanging the optical surface, wherein the optical surface is designed in particular as a plurality of mirror optics on both sides of the mirror carrier, the mirror carrier For example removable.

Preferably, the deflection device 38 can have a first optical surface, wherein the light beam 34 can be deflected in the direction of the first projection area 30 by means of the first optical surface if the deflection device 38 is arranged in the first position. The deflection device 38 can also have a second optical surface, wherein the light beam 34 can be deflected in the direction of the second projection area 40 by means of the second optical surface if the deflection device 38 is arranged in the second position.

In a further development, the deflection device 38 can have at least two different optical surfaces configured as mirrors for deflecting the light beam 34 in the direction of the at least two projection fields 30 , 40 , 42 . In other words, the projection device 22 has at least one movable mirror in the beam path of the light beam 34 .

In other words, the projector 32 can especially be arranged centrally in the transverse direction of the vehicle 20 . In particular, these light rays 34 can be deflected symmetrically by means of the optical surfaces of the deflection device 38 onto the likewise symmetrically arranged projection fields 30 , 40 , 42 .

In particular, various or different mirror surfaces can be used for the deflection of the light, which partially contain the optical correction function for the respective projection area 30 , 40 , 42 . In this case, separate mirror surfaces with separate correction functions can be used for each projection zone 30, 40, 42, or one mirror surface can be used for multiple mirror surfaces with similar optical requirements, or some The mirror surface can be implemented as a plane mirror.

In an alternative embodiment, optically functional mirror surfaces can be used, wherein the optical function can be adapted to the respective projection field 30 , 40 , 42 by changing the orientation of the mirror, for example by moving the deflection device 38 .

The different positions of the deflection device 38 can especially be fixed by means of a motor-transmission system with a brake, for example: firstly, by means of a brake spring or the like, which acts directly on the mirror carrier and whose brake The dynamic moment is higher than that caused by the normal angular acceleration in the vehicle 20 combined with the mass effect of the mirror carrier; or secondly, by means of the Maltese gear; or thirdly, by using stops, which are adjusted if necessary arrangement, the mirror carrier is pressed against these stops in particular in a rotational manner or in a linear manner; or fourthly, by using an elastic or active locking position in relation to a suitable drive design, e.g. for direct current (DC) Current monitoring of motors or other motors to identify blocking.

If, due to tolerances, possibly also within the framework of the vehicle body, an adjustment of the projection direction is required, this adjustment can advantageously be supported by an image evaluation of the vehicle interior camera. The camera can detect the projected test image and the relevant vehicle geometry, such as the frame of the side window, and can calculate correction values for the mirror position from this. This procedure can be carried out once after installing the camera and/or possibly after replacing or repairing components, wherein the correction values are stored in a non-volatile memory and/or optionally additionally every time the projection direction is changed .

When projecting, it is possible, as a variant, to integrate projection areas 40 , 42 with different sub-areas into the window panes 33 , 36 , 44 , wherein the first sub-area presents an image representation visible to the vehicle occupants, and the second sub-area An image representation visible to a viewer external to the vehicle 20 is presented. Depending on the positioning or selection of the mirrors, the same projector 32 can then be used to present images for approaching passengers, for example, before boarding the vehicle and then for the occupants during travel.

Fig. 6 shows a schematic diagram of a part of a projection device according to an embodiment of the present invention. In particular, the projection device according to FIG. 6 can be designed according to the projection device according to FIGS. 1 , 2 , 3 , 4 or 5 . Furthermore, the projection device according to FIG. 6 can be arranged in a vehicle, in particular according to the projection device according to FIGS. 1 , 2 , 4 or 5 .

In this advantageous embodiment, the projection device 22 also has an optical element 48 which is arranged between the light unit 32 and the deflection device 38 . The optical element 48 can be designed, for example, as an optical lens. The light emitted by the luminous unit 32 is thus deflected or directed in the direction of the deflection device 38 , in particular by or by means of the optical element 48 .

In this advantageous embodiment, the deflection device 38 is arranged in the first position or in the first position. As a result, the light rays 34 are deflected by means of the deflection device 38 in such a way that they are deflected in the direction of the first projection area. For this purpose, the deflection device 38 can in particular have a first optical surface 46 . In particular, the light beams 34 are emitted from the light unit 32 in the direction of the deflection device 38 , where they are deflected at the deflection device 38 , for example at the optical surface 46 of the deflection device 38 in the direction of the first projection field. The first optical surface 46 can be configured, for example, as a mirror or as a hologram.

Fig. 7 shows a schematic diagram of a part of a projection device according to an embodiment of the present invention. In particular, the projection device according to FIG. 7 can be designed according to the projection device according to FIGS. 1 , 2 , 3 , 4 , 5 or 6 . Furthermore, the projection device according to FIG. 7 can be arranged in a vehicle, in particular according to the projection device according to FIGS. 1 , 2 , 4 or 5 .

In this advantageous embodiment, the deflection device 38 is arranged in the second position or in the second position. As a result, the light rays 34 are deflected by means of the deflection device 38 in such a way that they are deflected in the direction of the second projection area. For this purpose, the deflection device 38 can in particular have a second optical surface 52 . In particular, the light beams 34 are emitted from the light unit 32 in the direction of the deflection device 38 , wherein they are deflected at the deflection device 38 or on the second optical surface 52 of the deflection device 38 in the direction of the second projection field. The second optical surface 52 can be designed, for example, as a mirror or as a holographic element.

In order to change the position of the deflection device 38 , the deflection device 38 can be arranged, for example, on a rail 54 , wherein the deflection device 38 is mounted displaceably from a first position into a second position.

Fig. 8 shows a schematic diagram of a part of a projection device according to an embodiment of the present invention. In particular, the projection device according to FIG. 8 can be designed according to the projection device according to FIGS. 1 , 2 , 3 , 4 , 5 , 6 or 7 . Furthermore, the projection device according to FIG. 8 can be arranged in a vehicle, in particular according to the projection device according to FIGS. 1 , 2 , 4 or 5 .

In this advantageous embodiment, the deflection device 38 is arranged in or in the third position. As a result, the light rays 34 are deflected by means of the deflection device 38 in such a way that they are deflected in the direction of the third projection area. For this purpose, the deflection device 38 can in particular have a third optical surface 56 . In particular, the light beams 34 are emitted from the light unit 32 in the direction of the deflection device 38 , wherein they are deflected at the deflection device 38 or on the third optical surface 56 of the deflection device 38 in the direction of the third projection field. The third optical surface 56 can be designed, for example, as a mirror or as a holographic element.

In order to change the position of the deflection device 38 , the deflection device 38 can be arranged, for example, on a rail 54 , wherein the deflection device 38 is mounted displaceably from a first position or from a second position into a third position.

FIG. 9 shows a schematic diagram of a method 60 for rendering an image representation by means of a projection device according to an embodiment of the invention. In particular, the projection device can be designed according to the projection device of FIG. 1 , FIG. 2 , FIG. 3 , FIG. 4 , FIG. 5 , FIG. 6 , FIG. 7 or FIG. 8 . Furthermore, the projection device can be arranged in a vehicle, in particular according to the projection device of FIG. 1 , FIG. 2 , FIG. 4 or FIG. 5 .

In a first step 62 of the method 60 , light is emitted in the direction of the deflecting device by means of a light emitting unit.

In a second step 64 of the method 60 , the light emitted by the luminous unit is deflected in the direction of one of the at least two projection regions by means of a deflection device.

FIG. 10 shows a schematic diagram of a method 60 for rendering an image representation by means of a projection device according to an embodiment of the invention. In particular, method 60 according to FIG. 10 can have the steps of method 60 according to FIG. 9 , in particular a first step 62 and a second step 64 . The method 60 may also have a third step 66 in which the image representation is rendered on a first projection area and/or on a second projection area spatially separated from the first projection area.

FIG. 11 shows a schematic diagram of a method 60 for rendering an image representation by means of a projection device according to an embodiment of the invention. In particular, method 60 according to FIG. 11 can have the steps of method 60 according to FIG. 9 or 10 , in particular first step 62 and second step 64 and especially third step 66 . The method 60 can also have a fourth step 68, wherein in the fourth step 68, the position of the deflection means is changed for selectively directing the light emitted by the light emitting unit in the direction of one of the at least two projection areas deflection. In particular, the fourth step 68 can be carried out before or after the second step 64 of the method 60 .

Claims (15)

1. A projection device (22) for rendering an image representation, the projection device comprising: a light emitting unit (32) for emitting light (34); and deflection means (38) for deflecting said light rays (34), characterized in that,

the projection device (22) has at least two projection areas (30, 40, 42), wherein the at least two projection areas (30, 40, 42) are arranged spatially separated from one another; furthermore, the light rays (34) emitted by the light-emitting unit (32) can be selectively deflected by means of the deflection device (38) in the direction of one of the at least two projection areas (30, 40, 42).

2. Projection device (22) according to any of the preceding claims, characterized in that the at least two projection areas (30, 40, 42) are arranged on at least two panes (33, 36, 44) in a vehicle (20).

3. Projection device (22) according to any one of the preceding claims, characterized in that the deflection device (38) is arrangeable in at least two positions and the light rays (34) are deflectable by means of the at least two positions of the deflection device (38) in the direction of one of the at least two projection areas (30, 40, 42).

4. Projection device (22) according to any of the preceding claims, characterized in that the deflection device (38) is arrangeable in a first position and in a second position; the light rays (34) can be deflected in the direction of the first projection area (30) by means of a deflection device (38) arranged in the first position; furthermore, the light rays (34) can be deflected in the direction of a second projection area (40) by means of a deflection device (38) arranged in the second position.

5. Projection device (22) according to any of the preceding claims, characterized in that the deflection device (38) is rotatably arranged such that the deflection device (38) can be rotated into at least two positions.

6. Projection device (22) according to any of the preceding claims, characterized in that the deflection device (38) is movably arranged such that the deflection device (38) can be moved to at least two positions.

7. Projection device (22) according to any one of the preceding claims, characterized in that the deflection means (38) have at least two different optical surfaces (46, 52, 56) for deflecting the light rays (34) in the direction of one of the at least two projection areas (30, 40, 42).

8. Projection device (22) according to any one of the preceding claims, characterized in that the deflection device (38) has a first optical surface (46), wherein the light rays (34) can be deflected by means of the first optical surface (46) in the direction of the first projection area (30); the deflection device (38) has a second optical surface (52), wherein the light rays (34) can be deflected by means of the second optical surface (52) in the direction of the second projection region (40).

9. Projection device (22) according to any one of the preceding claims, characterized in that the deflection device (38) has a first optical surface (46), wherein the light rays (34) can be deflected by means of the first optical surface (46) in the direction of the first projection zone (30) if the deflection device (38) is arranged in the first position; and the deflection means (38) have a second optical surface (52), wherein the light rays (34) can be deflected by means of the second optical surface (52) in the direction of the second projection area (40) if the deflection means (38) are arranged in the second position.

10. Projection device (22) according to any one of the preceding claims, characterized in that the deflection device (38) has at least two different optical surfaces (46, 52, 56) configured as mirrors for deflecting the light rays (34) in the direction of the at least two projection areas (30, 40, 42).

11. Projection device (22) according to any one of the preceding claims, characterized in that the image representation is presentable on one of the at least two projection areas (30, 40, 42).

12. The projection device (22) according to any one of the preceding claims, wherein the projection device (22) has at least three projection areas (30, 40, 42), wherein the at least three projection areas (30, 40, 42) are spatially arranged apart from each other; and the light (34) emitted by the light-emitting unit (32) can be selectively deflected by means of the deflection device (38) in the direction of one of the at least three projection areas (30, 40, 42).

13. A method for presenting an image representation by means of a projection device (22) according to any one of the preceding claims, the method having the steps of:

-emitting light rays (34) by means of the light emitting unit (32) in the direction of the deflection means (38);

the light rays (34) emitted by the light emitting unit (32) are selectively deflected (38) by means of the deflection device (38) in the direction of one of the at least two projection areas (30, 40, 42).

14. The method of claim 13, having the steps of: the image representation is presented on a first projection area (30) and/or on a second projection area (40) spatially separated from the first projection area.

15. The method according to any of the preceding claims 13 to 14, having the steps of: -changing the position of the deflection means (38) for selectively deflecting the light rays (34) emitted by the light emitting unit (32) towards one of the at least two projection areas (30, 40, 42).

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