CN116324585A

CN116324585A - Projection device for presenting image representations

Info

Publication number: CN116324585A
Application number: CN202180066862.2A
Authority: CN
Inventors: B·赫尔佐格; C·甘恩
Original assignee: Robert Bosch GmbH
Current assignee: Robert Bosch GmbH
Priority date: 2020-09-30
Filing date: 2021-09-24
Publication date: 2023-06-23
Also published as: DE102020212340A1; EP4222010A1; WO2022069369A1

Abstract

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

Description

Projection device for presenting image representations

Background

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

Disclosure of Invention

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

The projection device can be arranged, for example, 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 of the vehicle. Furthermore, the projection area can be arranged or integrated in the dashboard, in the windscreen or in a side window of the vehicle. By means of the projection device, information can be displayed to an observer, for example a vehicle occupant, for example a driver and/or a co-driver. For example, information about the state of the vehicle may be displayed. The vehicle mode may be displayed, for example, by means of a projection device. The information output may be, for example, information about the state of the vehicle, such as speed, speed readings, tank level, and/or information about vehicle navigation and/or information about entertainment systems. The projection device may also be referred to as a display device.

The invention has the advantages that: one or more image representations can be presented on different spatially separated projection areas by means of one projector. In particular, the use of a plurality of projectors can be reduced or avoided, as a result of which, in particular, installation space can be saved. Preferably, the complexity of the projection device can be reduced thereby. The outlay, for example, costs for procurement of the projector and/or wiring and handling required for a plurality of projectors, can also be reduced. As a result, there are fewer components, in particular in the projection device, so that weight can be reduced in particular. In particular, a smaller oscillation tendency can also be achieved. In particular, a safe and/or reliable representation of the image representation on one of the at least two projection areas can be achieved thereby.

In an advantageous embodiment, the at least two projection areas can be arranged on at least two panes in the vehicle. Thus, an image representation can be presented for one or more vehicle occupants on different panes in the vehicle. In particular, a safe and/or reliable representation of the image representation on one of the at least two projection areas can be achieved thereby.

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

In an exemplary embodiment, the deflection device can be rotatably mounted, wherein the deflection device can be rotated into at least two positions. In particular, the deflection device can be moved 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 areas can be achieved.

The deflection means may also be movably arranged such that the deflection means can be moved to at least two positions. In particular, the deflection device can be moved 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 areas can be achieved. The movement of the deflection device can in particular be designed such that a high rigidity of the suspension or of the arrangement of the deflection device in the projection device can be achieved.

Advantageously, the deflection means may have at least two different optical surfaces for deflecting the light rays in the direction of one of the at least two projection areas. In a further development, the deflection means may have a first optical surface by means of which light rays can be deflected in the direction of the first projection area, and the deflection means may also have a second optical surface by means of which light rays can be deflected in the direction of the second projection area. In this way, an adaptation of the image representation to the distance of these projection areas from the deflection device or from the projector can be achieved. As a result, the image representation can be presented in a particularly safe and/or reliable manner and can be adjusted in a clear manner, in particular for an observer, in particular for a vehicle occupant. Since the image representations projected on the different projection areas can be rendered clearly separately, free space projection can be achieved.

Furthermore, the deflection device may have, in particular, a first optical surface, by means of which the light can be deflected in the direction of the first projection region if the deflection device is arranged in the first position, and a second optical surface, by means of which the light can be deflected in the direction of the second projection region if the deflection device is arranged in the second position. In particular, the image representation can be presented safely and/or reliably. Advantageously, the image representation may be adapted to be clear to the vehicle occupant.

In an exemplary embodiment, the deflection device can have at least two different optical surfaces configured as mirrors for deflecting the light rays in the direction of the at least two projection areas. By using mirrors, the image representation can be transferred or deflected in particular safely and/or reliably in the direction of the projection region and can be presented on the projection region.

In an advantageous embodiment, the image representation can be represented on one of the at least two projection areas. Preferably, the image representation may be presented on a first projection area and/or on a second projection area spatially separated from the first projection area. Thus, the image representations may be presented to one or more observers of the projection region on different projection regions as desired. As a result, a safe and/or reliable presentation of the image representation can be achieved, whereby the observer can perceive the image representation in particular reliably.

The projection device may in particular also have at least three projection areas, wherein the at least three projection areas are spatially separated from one another, and wherein the light emitted by the light-emitting unit can be deflected by means of a deflection device in the direction of one of the at least three projection surfaces. In this way, the image representation can be presented on one of the different projection areas, in particular safely and/or reliably. Preferably, it is possible to realize: the viewer can in particular reliably perceive the image representation on the corresponding projection region.

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

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

by means of which the light emitted by the light-emitting unit is selectively deflected in the direction of one of the at least two projection areas.

In particular, a simple and/or reliable deflection of the light can be achieved, as a result of which the image representation can be reliably represented on one of the projection areas.

Preferably, the method further has the steps of: the image representation is presented on the first projection region and/or on a second projection region spatially separated from the first projection region. In this way, the image representation can be presented particularly reliably on one of the two projection areas.

The method may have the further step of: the position of the deflection means is changed for selectively deflecting the light emitted by the light emitting unit towards one of the at least two projection areas. By changing the position of the deflection device, it is possible in particular to reliably ensure that: the light rays are transmitted or deflected in the direction of the corresponding projection surface. Thereby, a reliable presentation of the image representation on one of the projection areas can be achieved.

Drawings

Embodiments of the invention are illustrated in the accompanying drawings and described in more detail in the following description. The same reference numerals are used for elements shown in different drawings and functioning similarly, and a repetitive description of these elements is omitted. Wherein:

FIG. 1 shows a schematic top view of a vehicle having a projection device;

FIG. 2 shows a schematic view of a segment of a vehicle having a projection device;

FIG. 3 shows a schematic view of a projection device;

FIG. 4 shows a schematic view of a segment of a vehicle having a projection device;

FIG. 5 shows a schematic view of a segment of a vehicle having a projection device according to an embodiment of the invention;

FIG. 6 shows a schematic view of a portion of a projection device according to an embodiment of the invention;

FIG. 7 shows a schematic view of a portion of a projection device according to an embodiment of the invention;

FIG. 8 shows a schematic view of a portion of a projection device according to an embodiment of the invention;

FIG. 9 shows a schematic diagram of a method for rendering an image representation according to an embodiment of the invention;

FIG. 10 shows a schematic diagram of a method for rendering an image representation in accordance with an embodiment of the invention;

FIG. 11 shows a schematic diagram of a method for rendering an image representation according to an embodiment of the invention.

Detailed Description

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

The projection device 22 may be arranged, for example, in an instrument panel 28 or an instrument panel 28 of the vehicle 20. Alternatively or additionally, the projection device or the further projection device 22 may be arranged elsewhere in the dashboard of the vehicle 20, for example at the roof 29, the rear view mirror or the pillar 20 of the vehicle, for example the a-pillar and/or the B-pillar.

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

By means of the projection device 22, in particular by means of the projection area 30 or on this projection area, 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/or tank level and/or navigation instructions and/or information about the vehicle entertainment system and/or other information, can be displayed.

The projection device 22 may further have: a housing, which optionally has a heat sink; and corresponding electronic equipment for manipulating the assembly.

Fig. 2 shows a schematic illustration of a section of a vehicle 20 from the side with a projection device 22. The projection device 22 according to fig. 2 can be constructed in particular according to the projection device 22 of fig. 1. Furthermore, the projection device 22 according to fig. 2 can be arranged in particular in the vehicle 20 according to the projection device 22 of fig. 1. In this advantageous embodiment, the projector 32 is arranged on the roof 29 and the projection area 30 is arranged in or on a windscreen 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 view of the projection device 22. Projection device 22 has a projector 32 and a projection area 30. Projector 32 may emit light 34. The projector 32 and the projection area 30 are arranged, in particular with respect to each other, such that light rays 34 emitted by the projector 32 are directed onto the projection area 30 for an image representation 35, in particular a real image representation. In other words, the light rays 34 emitted by the projector 32 are directed towards the projection area 30, thereby producing an image representation 35, in particular a real image representation, on the projection area 30.

Fig. 4 shows a schematic representation of a section of a vehicle 20 with a projection device 22. The projection device 22 according to fig. 4 can be constructed in particular according to the projection device 22 of fig. 1, 2 or 3. Furthermore, the projection device 22 according to fig. 4 can be arranged in particular in the vehicle 20 according to the projection device 22 of fig. 1 or 2. In this advantageous embodiment, the projector 32 is arranged on the roof 29 and the projection area 30 is arranged in a window pane, in particular a side window pane 36, of the 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 view of a segment of a vehicle 20 having a projection device 22 according to an embodiment of the invention. The projection device 22 according to fig. 5 can be constructed in particular according to the projection device 22 of fig. 1, 2, 3 or 4. Furthermore, the projection device 22 according to fig. 5 can be arranged in particular in the vehicle 20 according to the projection device 22 of fig. 1, 2 or 4. In this advantageous embodiment, the projector 32 is arranged on the roof 29 and the plurality of projection areas are arranged in the window pane of the vehicle 20.

The projection device 22 is configured to present an image representation. The projection device 22 includes: a light emitting unit 32 or projector 32 for emitting light 34; and deflection means 38 for deflecting the light rays 34. The projection device 22 further has at least two

projection areas

30, 40, 42, wherein the at least two

projection areas

30, 40, 42 are spatially separated from one another. In this advantageous embodiment, the projection device 22 has three

projection areas

30, 40, 42, in particular a first projection area 30, a second projection area 40 and a third projection area 42. The at least three

projection areas

30, 40, 42 may in particular be arranged spatially separated from one another. Alternatively, the projection device 22 may also have two projection regions, in particular a first projection region 30 and/or a second projection region 40 and/or a third projection region 42. In other words, the image representation may be presented in the vehicle on different surfaces, wherein the image representation is visible from the inside to the vehicle occupant and/or 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 areas

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

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 two

projection areas

30, 40, 42. In a further development, 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. In other words, projector 32 emits light rays 34 in the direction of deflection means 38, wherein the light rays are selectively deflected by means of deflection means 38 in the direction of one of

projection areas

30, 40, 42, so that an image representation is or can be rendered on one of these

projection areas

30, 40, 42. In other words, the light-emitting unit 32 emits light rays 34 which are deflected by means of the deflection device 38 in the direction of the first projection region 30 for image representation on the first projection region 30. The light-emitting unit 32 also emits light rays 34 which are deflected by means of a deflection device 38 in the direction of the second projection area 40 for image representation on the second projection area 40. The light-emitting unit 32 also emits light rays 34 which are deflected by means of the deflection device 38 in the direction of the third projection area 42 for image representation on the third projection area 42.

In order to deflect the light rays 34, the deflection means 38 may in particular be arranged in at least two positions, wherein the light rays 34 can be selectively deflected towards one of the at least two

projection areas

30, 40, 42 by means of the at least two positions of the deflection means 38. In other words, the deflector 38 may be arranged in a first position and a second position. The light rays 34 can be deflected in particular by means of a deflection device 38 arranged in a first position in the direction of the first projection region 30, wherein the light rays 34 can be deflected by means of a deflection device 38 arranged in a second position in the direction of the second projection region 40.

Preferably, the deflection means 38 may be rotatably arranged such that the deflection means 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 deflector 38 can be rotated into the third position. In other words, the deflection device 38 may in particular have a swivel joint, by means of which the deflection device 38 can be rotated into different positions. In other words, the deflection device 38 can be configured as a module with a plurality of optical surfaces, in particular as a mirror or a holographic element, wherein the deflection device 38 can be adjusted by means of rotation. In an alternative embodiment, the position of the deflector 38 may be established by rotation about one or more axes. In other words, the deflector 38 may be rotatably arranged by means of a low backlash pivot bearing or a pivot bearing preloaded by a spring without reflection of light.

In an alternative embodiment, the deflector 38 may be movably arranged such that the deflector 38 is movable to at least two positions. In a further development, the deflection means 38 are arranged in such a way that they can be moved to the third position. In other words, the deflector 38 may be moved to the first position or to the second position or to the third position. For example, the deflection device 38 may be configured as a sliding element, for example a sliding element on a rail. In other words, the deflection device 38 can be configured as a module, in particular a mirror or a holographic element, with a plurality of optical surfaces, 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 may be arranged on the carrier in a linearly movable manner. For example, the deflection device 38 may have a stepper motor for movement. In a further development, the position of the deflection means 38 can be limited by means of a stop. Thus, high accuracy of the position can be ensured. In a further development, the deflection means 38 can in particular be automatically adjusted such that the image representation is presented on a projection area, for example, which is observed by an observer. This can be identified, for example, by means of an interior camera and a corresponding algorithm.

In a further development, the deflection means 38 may have at least two different optical surfaces for deflecting light rays 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 light rays 34 in the direction of first projection area 30; and a second optical surface for deflecting light rays in the direction of the second projection area 40. In a further development, the deflection means 38 may have a third optical surface for deflecting light rays in the direction of the third projection area 42. In other words, the deflection device 38 may have: a first optical surface, by means of which light can be deflected in the direction of the first projection region 30; and a second optical surface by means of which light can be deflected in the direction of the second projection area 40. In a further development, these optical surfaces may be formed straight or curved. The conversion or adjustment of the projection area can be performed in particular by changing the optical surface, wherein the optical surface is in particular configured 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 performed in particular by exchanging the optical surfaces, wherein the optical surfaces are in particular configured as a plurality of mirror optics on both sides of a mirror carrier, which is movable, for example.

Preferably, the deflection means 38 may have a first optical surface, wherein the light rays 34 can be deflected by means of the first optical surface towards the first projection area 30 if the deflection means 38 are arranged in the first position. The deflection means 38 may also have a second optical surface, wherein the light rays 34 can be deflected by means of the second optical surface towards the second projection area 40 if the deflection means 38 are arranged in the second position.

In a further development, the deflection means 38 may have at least two different optical surfaces configured as mirrors for deflecting the light rays 34 in the direction of the at least two

projection areas

30, 40, 42. In other words, the projection device 22 has at least one movable mirror in the path of the light 34.

In other words, the projector 32 may be disposed in the middle, particularly in the lateral direction of the vehicle 20. In particular, the light rays 34 can be deflected symmetrically by means of the optical surfaces of the deflection device 38 onto the likewise symmetrically arranged

projection areas

30, 40, 42.

In particular, various or different mirror surfaces may be used for deflecting the light rays, which mirror surfaces partly comprise optical correction functions for the

respective projection areas

30, 40, 42. In this case, a separate mirror surface with a separate correction function may be used for each

projection area

30, 40, 42, or one mirror surface may be used for a plurality of mirror surfaces with similar optical requirements, or some of the mirror surfaces may be implemented as flat mirrors.

In an alternative embodiment, a mirror surface with an optical function can be used, wherein the optical function can be adapted to the

respective projection area

30, 40, 42 by changing the orientation of the mirror, for example by moving the deflection means 38.

The different positions of the deflector 38 can be fixed in particular by means of a motor-transmission system with a brake, for example: firstly, by means of a detent spring or the like, which acts directly on the mirror carrier and whose detent torque is higher than the torque caused by the normal angular acceleration in the vehicle 20 in combination with the mass effect of the mirror carrier; or secondly by means of a maltese gear; or third, by using stops, which are arranged optionally adjustably, the mirror carrier is pressed against, in particular, in a rotational or linear manner; or fourth, by using a resilient or active locking position in connection with a suitable drive design, for example for identifying a lockout by current monitoring of a Direct Current (DC) motor or other motor.

If the projection direction needs to be adjusted due to tolerances, and if necessary also tolerances in the vehicle body range, 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 associated vehicle geometry, for example the frame of the side window, and can calculate therefrom a correction value for the mirror position. This process can be completed once after the installation of the camera and/or after the replacement or repair of the assembly if necessary, wherein correction values are stored in a nonvolatile memory and/or additionally each time the projection direction is changed if necessary.

In projection, as a variant, it is possible to integrate into the panes 33, 36, 44 a

projection region

40, 42 having different subregions, wherein a first subregion presents an image representation that is visible to a vehicle occupant and a second subregion presents an image representation that is visible to an observer outside the vehicle 20. Depending on the positioning or selection of the mirrors, the same projector 32 may then be used to present images for approaching passengers, for example, prior to boarding and then for passengers during driving.

Fig. 6 shows a schematic view of a part of a projection device according to an embodiment of the invention. The projection device according to fig. 6 can be constructed in particular according to the projection device of fig. 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 of fig. 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-emitting unit 32 and the deflection device 38. The optical element 48 may be configured, for example, as an optical lens. The light emitted by the light-emitting unit 32 is thus deflected or guided, in particular by or by means of the optical element 48, in the direction of the deflection device 38.

In this advantageous embodiment, the deflection means 38 are arranged in the first position or in this first position. The light rays 34 are thereby deflected by means of the deflection means 38 such that they are deflected in the direction of the first projection zone. For this purpose, the deflection device 38 can have, in particular, a first optical surface 46. In particular, the light rays 34 are emitted by the light-emitting unit 32 in the direction of the deflection device 38, wherein these light rays are deflected at the deflection device 38, for example on an optical surface 46 of the deflection device 38, in the direction of the first projection zone. The first optical surface 46 may be configured, for example, as a mirror or as an hologram.

Fig. 7 shows a schematic view of a part of a projection device according to an embodiment of the invention. The projection device according to fig. 7 can be constructed in particular according to the projection device of fig. 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 of fig. 1, 2, 4 or 5.

In this advantageous embodiment, the deflection means 38 are arranged in the second position or in this second position. The light rays 34 are thereby deflected by means of the deflection means 38 such that they are deflected in the direction of the second projection zone. For this purpose, the deflection device 38 can have, in particular, a second optical surface 52. In particular, the light rays 34 are emitted by the light-emitting unit 32 in the direction of the deflection means 38, wherein these light rays are deflected at the deflection means 38 or on the second optical surface 52 of the deflection means 38 in the direction of the second projection zone. The second optical surface 52 may be configured, for example, as a mirror or as an holographic element.

For changing the position of the deflection device 38, the deflection device 38 may be arranged, for example, on a rail 54, wherein the deflection device 38 is arranged in such a way that it can be moved from the first position to the second position.

Fig. 8 shows a schematic view of a part of a projection device according to an embodiment of the invention. The projection device according to fig. 8 can be constructed in particular according to the projection device of fig. 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 of fig. 1, 2, 4 or 5.

In this advantageous embodiment, the deflection means 38 are arranged in the third position or in this third position. The light rays 34 are thereby deflected by means of the deflection means 38 such that they are deflected in the direction of the third projection zone. For this purpose, the deflection device 38 can have, in particular, a third optical surface 56. In particular, the light rays 34 are emitted by the light-emitting unit 32 in the direction of the deflection device 38, wherein these light rays 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 zone. The third optical surface 56 may be configured, for example, as a mirror or as an holographic element.

For changing the position of the deflection device 38, the deflection device 38 may be arranged, for example, on a rail 54, wherein the deflection device 38 is arranged in such a way that it can be moved from the first position or from the second position to the third position.

Fig. 9 shows a schematic diagram of a method 60 for presenting an image representation by means of a projection device, according to an embodiment of the invention. The projection device can be constructed in particular as the projection device according to fig. 1, 2, 3, 4, 5, 6, 7 or 8. Furthermore, the projection device can be arranged in a vehicle, in particular, in accordance with the projection device of fig. 1, 2, 4 or 5.

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

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

Fig. 10 shows a schematic diagram of a method 60 for presenting an image representation by means of a projection device, according to an embodiment of the invention. The method 60 according to fig. 10 can in particular have the steps of the method 60 according to fig. 9, in particular the first step 62 and the second step 64. The method 60 may also have a third step 66, wherein in the third step 66, the image representation is presented on the first projection region and/or on a second projection region spatially separated from the first projection region.

Fig. 11 shows a schematic diagram of a method 60 for presenting an image representation by means of a projection device, according to an embodiment of the invention. The method 60 according to fig. 11 may in particular have the steps of the method 60 according to fig. 9 or 10, in particular the first step 62 and the second step 64 and in particular the third step 66. The method 60 may further have a fourth step 68, wherein in the fourth step 68 the position of the deflection means is changed for selectively deflecting the light emitted by the light emitting unit towards one of the at least two projection areas. The fourth step 68 may in particular be performed before or after the second step 64 of the method 60.

Claims

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).