Imaging system

Abstract

The utility model provides an imaging system, and relates to the technical field of imaging. The imaging system comprises a first screen, a second screen and an imaging module, the imaging module is provided with a display surface for imaging, the first screen is used for generating a first image and projecting the first image to the display surface, and the second screen is used for generating a second image and projecting the second image to the display surface. The display surface is used for displaying an image formed by overlapping the first image and the second image, and the image displayed by the imaging system is closer to a traditional optical rearview mirror.

Description

TECHNICAL FIELD

[0001] The present application relates to the field of imaging technology, in particular, to an imaging system. BACKGROUND

[0002] The electronic rearview mirror (CMS) is a new type of rearview mirror that can replace the traditional optical rearview mirror. The electronic rearview mirror system generally includes a camera, a controller, a display and other electronic devices.

[0003] Some existing electronic rearview mirror systems generally use the controller to process the image obtained by the camera, and then transmit the processed image to the display to display a planar image on the display. However, the planar image is different from the image displayed by the traditional optical rearview mirror, resulting in a high adaptation cost of the driver. CONTENT OF THE UTILITY MODEL

[0004] The purpose of the present application includes, for example, providing an imaging system whose displayed image is closer to the traditional optical rearview mirror.

[0005] Embodiments of the present application can be implemented as follows:

[0006] An embodiment of the present application provides an imaging system, which includes a first screen, a second screen and an imaging module. The imaging module is provided with a display surface for imaging. The first screen is used to generate a first image and project the first image to the display surface. The second screen is used to generate a second image and project the second image to the display surface. The display surface is used to display an image formed by superimposing the first image and the second image.

[0007] Optionally, the first screen and the second screen are arranged at intervals along the normal direction of the first screen or the normal direction of the second screen.

[0008] Optionally, the first screen is closer to the display surface relative to the second screen, and the imaging system satisfies:

[0009] D1= (0.05~0.15) *D2;

[0010] Wherein, D1 is the distance between the first screen and the second screen, and D2 is the distance between the center of the first screen and the center of the display surface.

[0011] Optionally, the imaging system satisfies: D1=10~80mm.

[0012] Optionally, along the normal direction of the first screen or the normal direction of the second screen, the distance from any point on the second screen to the display surface is 70~150mm.

[0013] Optionally, the display surface is arranged at an angle relative to the first screen or the second screen.

[0014] Optionally, the angle between the display surface and the first screen or the second screen is 30-40 degrees.

[0015] Optionally, the projections of the first screen and the second screen at least partially overlap along the normal direction of the first screen or the normal direction of the second screen.

[0016] Optionally, one of the first screen and the second screen that is closer to the display surface is a transparent screen, and the other is a liquid crystal screen.

[0017] Optionally, the imaging system further comprises a camera module and a controller, the controller is electrically connected to the camera module, the first screen and the second screen, the camera module is configured to collect images in real time and generate video signals, the controller is configured to process the video signals to obtain first video signals and second video signals, the first screen is configured to obtain the first video signals and generate the first images, and the second screen is configured to obtain the second video signals and generate the second images.

[0018] Optionally, the imaging system is an electronic rearview mirror system.

[0019] The imaging system provided by the embodiments of the present application has the following advantages, for example: in order to make the displayed image closer to the effect of a traditional optical rearview mirror, an imaging system is designed, which comprises a first screen, a second screen and an imaging module, the imaging module is provided with a display surface for imaging, the first screen is configured to generate first images and project the first images to the display surface, the second screen is configured to generate second images and project the second images to the display surface, and the display surface is configured to display an image formed by superimposing the first images and the second images.

[0020] In the working process of the imaging system, the first screen generates first images and projects the first images to the display surface, the second screen generates second images and projects the second images to the display surface, and the image formed by superimposing the first images and the second images on the display surface has a certain stereoscopic effect and is closer to a traditional optical rearview mirror compared with the existing imaging system that displays a planar image on a screen. BRIEF DESCRIPTION OF DRAWINGS

[0021] In order to more clearly illustrate the technical solutions of the embodiments of the present application, the following will briefly introduce the drawings needed to be used in the embodiments. It should be understood that the following drawings only show some embodiments of the present application, and therefore should not be regarded as a limitation on the scope, and for those skilled in the art, other related drawings can also be obtained without creative labor.

[0022] Figure 1 FIG. 1 is a schematic diagram of an imaging system according to an embodiment of the present application;

[0023] Figure 2 FIG. 2 is a schematic diagram showing the positional relationship between a first screen, a second screen and an imaging module according to an embodiment of the present application;

[0024] Figure 3 FIG. 3 is a schematic diagram showing the electrical connection relationship between a camera module and a controller according to an embodiment of the present application;

[0025] Figure 4 FIG. 4 is a schematic diagram showing the electrical connection relationship between a screen assembly and a controller according to an embodiment of the present application;

[0026] Figure 5 FIG. 5 is a schematic diagram showing the imaging system applied to a vehicle according to an embodiment of the present application.

[0027] FIG. 1 is a schematic diagram of an imaging system according to an embodiment of the present application; FIG. 2 is a schematic diagram showing the positional relationship between a first screen, a second screen and an imaging module according to an embodiment of the present application; FIG. 3 is a schematic diagram showing the electrical connection relationship between a camera module and a controller according to an embodiment of the present application; FIG. 4 is a schematic diagram showing the electrical connection relationship between a screen assembly and a controller according to an embodiment of the present application; FIG. 5 is a schematic diagram showing the imaging system applied to a vehicle according to an embodiment of the present application. FIG. 6 is a schematic diagram showing the imaging system applied to a vehicle according to another embodiment of the present application. 100 - screen assembly; 110 - first screen assembly; 120 - second screen assembly; 130 - first screen; 131 - first image; 140 - second screen; 141 - second image; 200 - imaging module; 210 - display surface; 211 - first display surface; 212 - second display surface; 300 - camera module; 310 - first camera module; 320 - second camera module; 400 - controller; 500 - dashboard; 600 - reference eye point; 700 - horizontal plane. DETAILED DESCRIPTION

[0028] In order to make the objectives, technical solutions, and superiorities of the embodiments of the present application clearer, the following will be a clear and complete description of the technical solutions in the embodiments of the present application in conjunction with the accompanying drawings in the embodiments of the present application. Obviously, the described embodiments are only a part of the embodiments of the present application, rather than all the embodiments of the present application. The components of the embodiments of the present application described and shown in the accompanying drawings herein can be arranged and designed in various different configurations.

[0029] Therefore, the following detailed description of the embodiments of the present application provided in the accompanying drawings is not intended to limit the scope of the claimed present application, but only represents selected embodiments of the present application. Based on the embodiments in the present application, all other embodiments obtained by those of ordinary skill in the art without creative effort fall within the scope of protection of the present application.

[0030] It should be noted that: similar reference numbers and letters represent similar items in the following drawings, thus, once an item is defined in one drawing, it does not need to be further defined and explained in subsequent drawings.

[0031] In the description of this application, it should be noted that if terms such as "upper," "lower," "inner," or "outer" are used to indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings, or the orientation or positional relationship that the utility model product is usually placed in during use, they are only for the convenience of describing this application and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation, and therefore should not be construed as a limitation of this application.

[0032] Furthermore, the terms "first" and "second" are used only to distinguish descriptions and should not be interpreted as indicating or implying relative importance.

[0033] It should be noted that, where there is no conflict, the features in the embodiments of this application can be combined with each other.

[0034] As disclosed in the background section, some existing electronic rearview mirror systems use a controller to process images acquired by a camera and then transmit the processed image to a display. The display shows a planar image, which is a real image and differs from the image displayed by a traditional optical rearview mirror, resulting in a higher adaptation cost for the driver. Embodiments of this application provide an imaging system that displays images closer to those of a traditional optical rearview mirror, reducing the driver's adaptation cost.

[0035] Please refer to Figure 1 , Figure 2 The imaging system provided in the embodiments of this application includes a first screen 130, a second screen 140, and an imaging module 200. The imaging module 200 is provided with a display surface 210 for imaging. The first screen 130 is used to generate a first image 131 and project the first image 131 onto the display surface 210. The second screen 140 is used to generate a second image 141 and project the second image 141 onto the display surface 210. The display surface 210 is used to display an image formed by superimposing the first image 131 and the second image 141.

[0036] It should be noted that the main body of the imaging module 200 is made of materials such as glass, and one of the surfaces of the imaging module 200 is the display surface 210. The position of the human eye is based on the reference eye point 600, and the angle between the line connecting the reference eye point 600 and the center of the display surface 210 and the display surface 210 is the observation angle α. The portions of the first image 131 and the second image 141 projected into the range of this observation angle α can be observed by the human eye.

[0037] Both the first image 131 and the second image 141 are real images. The first image 131 can be generated at any position on the first screen 130 and is projected onto the display surface 210 in a scattering manner. The second image 141 is generated at any position on the second screen 140 and is projected onto the display surface 210 in a scattering manner. When the first image 131 and the second image 141 are projected onto the display surface 210, due to the reflection effect of the display surface 210, virtual images corresponding to the first image 131 and the second image 141 are formed on the display surface 210. The virtual images corresponding to the first image 131 and the second image 141 are superimposed on the display surface 210 to form an image with a certain three-dimensional effect, so that the human eye can observe the image.

[0038] During operation, the imaging system generates a first image 131 on the first screen 130 and projects the first image 131 onto the display surface 210. The second screen 140 generates a second image 141 and projects the second image 141 onto the display surface 210. The first image 131 and the second image 141 form corresponding virtual images on the display surface 210. The virtual images corresponding to the first image 131 and the second image 141 are superimposed to form an image with a certain three-dimensional effect. The image that can be observed by the human eye is this image. Compared with existing imaging systems that display planar images on the screen, this image is closer to the image displayed by a traditional optical rearview mirror.

[0039] Figure 2 The light transmission paths of the first image 131 and the second image 141 are shown. Light rays projected onto the first image 131 generated by the first screen 130 within the observation angle α are reflected by the display surface 210 and incident at the reference eye point 600, resulting in a virtual image of the first image 131 appearing in the display surface 210. Similarly, light rays projected onto the second image 141 generated by the second screen 140 within the observation angle α are reflected by the display surface 210 and incident at the reference eye point 600, resulting in a virtual image of the second image 141 appearing in the display surface 210. In this embodiment, the first screen 130 and the second screen 140 are spaced apart along the normal direction of either the first screen 130 or the second screen 140.

[0040] The normal direction of the first screen 130 is parallel to the normal direction of the second screen 140, that is, the first screen 130 and the second screen 140 are parallel, and there is a gap between the first screen 130 and the second screen 140 along the normal direction of either the first screen 130 or the second screen 140.

[0041] The first screen 130 is closer to the display surface 210 than the second screen 140. The imaging system satisfies: D1 = (0.05~0.15) * D2; where D1 is the distance between the first screen 130 and the second screen 140, and D2 is the distance between the center of the first screen 130 and the center of the display surface 210.

[0042] It should be noted that the distance D1 between the first screen 130 and the second screen 140 is actually the distance between the display layer in the first screen 130 and the display layer in the second screen 140.

[0043] The distance D1 between the first screen 130 and the second screen 140 is 0.05 to 0.15 times the distance D2 between the center of the first screen 130 and the center of the display surface 210. It can be understood that the distance D1 between the first screen 130 and the second screen 140 and the distance D2 between the center of the first screen 130 and the center of the display surface 210 can be determined according to actual needs.

[0044] For example, the distance D1 between the first screen 130 and the second screen 140 is 0.05 times the distance D2 between the center of the first screen 130 and the center of the display surface 210, or the distance D1 between the first screen 130 and the second screen 140 is 0.1 times the distance D2 between the center of the first screen 130 and the center of the display surface 210, or the distance D1 between the first screen 130 and the second screen 140 is 0.15 times the distance D2 between the center of the first screen 130 and the center of the display surface 210.

[0045] It should be noted that if the distance D1 between the first screen 130 and the second screen 140 is 0, the first image 131 generated by the first screen 130 and the second image 141 generated by the second screen 140 are the same size. The virtual images corresponding to the first image 131 and the second image 141 still form a planar image after being superimposed on the display surface 210, without any depth effect. Furthermore, the first image 131 and the second image 141 can only be enlarged or reduced proportionally, resulting in a smaller field of view displayed on the display surface 210.

[0046] When the distance D1 between the first screen 130 and the second screen 140 is greater than 0, the first image 131 generated by the first screen 130 and the second image 141 generated by the second screen 140 are of different sizes. Furthermore, the larger the distance D1 between the first screen 130 and the second screen 140, the larger the virtual image of the first image 131 displayed on the display surface 210. The image formed by the superposition of the virtual images corresponding to the first image 131 and the second image 141 on the display surface 210 has a depth-of-field effect, and the first image 131 and the second image 141 can be enlarged or reduced non-proportionally, resulting in a larger field of view displayed on the display surface 210.

[0047] In some optional embodiments, the imaging system satisfies: D1 = 10~80mm.

[0048] For example, the distance D1 between the first screen 130 and the second screen 140 is 10mm, or 20mm, or 30mm, or 40mm, or 50mm, or 60mm, or 70mm, or 80mm.

[0049] It is understandable that the distance D1 between the first screen 130 and the second screen 140 can be selected within the above range according to actual needs.

[0050] In some optional embodiments, the distance from any point on the second screen 140 to the display surface 210 along the normal direction of the first screen 130 or the normal direction of the second screen 140 is 70~150mm.

[0051] It should be noted that the second screen 140 is tilted relative to the horizontal plane 700, and the distances from the two endpoints of the second screen 140 along its tilt direction to the display surface 210 are the minimum distance and the maximum distance, respectively.

[0052] For example, along the normal direction of the first screen 130 or the second screen 140, the distance from one end point of the second screen 140 along its own tilt direction to the display surface 210 is 70mm, that is, the minimum distance is 70mm; the distance from the other end point of the second screen 140 along its own tilt direction to the display surface 210 is 150mm, that is, the maximum distance is 150mm; and the distance from the center point of the second screen 140 to the display surface 210 is 110mm.

[0053] It is understandable that the distance from any point on the second screen 140 to the display surface 210 along the normal direction of the first screen 130 or the normal direction of the second screen 140 can be determined according to actual needs.

[0054] In this embodiment, the display surface 210 is set at an angle relative to the first screen 130 or the second screen 140.

[0055] It should be noted that, since the first screen 130 and the second screen 140 are parallel, the angle at which the display surface 210 is tilted relative to the first screen 130 is equal to the angle at which the display surface 210 is tilted relative to the second screen 140. However, because the first screen 130 is closer to the display surface 210 than the second screen 140, the image distances of the two virtual images formed by the first image 131 and the second image 141 on the display surface 210 are different, causing the two virtual images formed by the first image 131 and the second image 141 on the display surface 210 to be located on different planes.

[0056] In some alternative embodiments, the angle β between the display surface 210 and the first screen 130 or the second screen 140 is 30° to 40°.

[0057] For example, the angle β between the display surface 210 and the first screen 130 or the second screen 140 is 30°, or the angle β between the display surface 210 and the first screen 130 or the second screen 140 is 35°, or the angle β between the display surface 210 and the first screen 130 or the second screen 140 is 40°.

[0058] It is understandable that the angle β between the display surface 210 and the first screen 130 or the second screen 140 can be determined according to actual needs.

[0059] In some embodiments, the projections of the first screen 130 and the second screen 140 at least partially overlap along the normal direction of the first screen 130 or the normal direction of the second screen 140.

[0060] It should be noted that the projections of the first screen 130 and the second screen 140 may only partially overlap or completely overlap along the normal direction of the first screen 130 or the normal direction of the second screen 140.

[0061] Since the light paths projected by the first image 131 and the second image 141 are generally conical, the first screen 130 and the second screen 140 can be projected along the normal direction of the first screen 130 or the normal direction of the second screen 140, which at least partially overlap. In this case, the size of one of the first screen 130 and the second screen 140 can be smaller than the other. For example, the second screen 140 can be smaller than the size of the first screen 130. This can save costs to a certain extent and is conducive to adapting to other external installation structures.

[0062] In some embodiments, one of the first screen 130 and the second screen 140 near the display surface 210 is a transparent screen, and the other is a liquid crystal screen.

[0063] When the first screen 130 is closer to the display surface 210 than the second screen 140, the first screen 130 is a transparent screen and the second screen 140 is a liquid crystal screen.

[0064] It should be noted that a transparent screen is a display screen that can simultaneously display images and allow the background to be seen through. Its working principle is based on setting display elements on glass or transparent materials, displaying images by controlling the brightness of pixels, and allowing background light to pass through the display screen when no images are displayed, so that the human eye can see the objects behind the screen.

[0065] Since the first screen 130 is closer to the display surface 210 than the second screen 140, and the projections of the first screen 130 and the second screen 140 at least partially overlap along the normal direction of the first screen 130 or the normal direction of the second screen 140, the first screen 130 needs to allow the second image 141 generated on the second screen 140 to pass through. Therefore, the first screen 130 needs to be a transparent screen. Furthermore, the first screen 130 can be a transparent screen with a light transmittance of about 90%, and the second screen 140 can be a common TFT LCD screen.

[0066] In some other embodiments, the second screen 140 may also be replaced with other displays capable of generating the second image 141, without limitation.

[0067] Please refer to Figures 3-5 In this embodiment, the imaging system further includes a camera module 300 and a controller 400. The controller 400 is electrically connected to the camera module 300, the first screen 130, and the second screen 140. The camera module 300 is used to acquire images in real time and generate video signals. The controller 400 is used to process the video signals to obtain a first video signal and a second video signal. The first screen 130 is used to acquire the first video signal and generate a first image 131. The second screen 140 is used to acquire the second video signal and generate a second image 141.

[0068] Since the controller 400 is electrically connected to the camera module 300, the first screen 130, and the second screen 140 simultaneously, the video signal generated by the camera module 300 is transmitted to the controller 400. The controller 400 processes the video signal to obtain a first video signal and a second video signal, and transmits the first video signal to the first screen 130 and the second video signal to the second screen 140. The first screen 130 generates a first image 131 when acquiring the first video signal, and the second screen 140 generates a second image 141 when acquiring the second video signal. In some optional embodiments, the first image 131 is a close-up image, and the second image 141 is a distant view image. The first video signal obtained by the controller 400 after processing the video signal generated by the camera module 300 is a close-up video signal, and the second video signal is a distant view video signal.

[0069] The camera module 300 includes an image sensor and a serializer that are electrically connected. The controller 400 includes an image processing chip and an MCU microprocessor, a deserializer, and a serializer that are electrically connected to the image processing chip. The first screen 130 and the second screen 140 are electrically connected to two other deserializers to form a screen assembly 100.

[0070] It should be noted that the function of a serializer is to serialize signals, that is, to convert the data structure or object state of a signal into a format that can be stored or transmitted (such as XML, JSON, binary, etc.); the function of a deserializer is to deserialize signals, that is, to convert the serialized data (such as files, database records, or data transmitted over a network) back into a data structure or object.

[0071] In this embodiment, the serializer electrically connected to the image sensor serializes the video signal acquired by the image sensor, the serializer in the controller 400 serializes the first video signal or the second video signal, the deserializer in the controller 400 deserializes the serialized video signal transmitted by the serializer electrically connected to the image sensor, and the deserializer in the screen assembly 100 deserializes the serialized first video signal or the second video signal transmitted by the serializer in the controller 400.

[0072] The image sensor transmits the acquired video signal sequentially to the image processing chip via a serializer electrically connected to itself and a deserializer in the controller 400. The image processing chip, in conjunction with the MCU microprocessor, processes the video signal to obtain a first video signal and a second video signal. The image processing chip then transmits the first video signal and the second video signal to the first screen 130 and the second screen 140 via two serializers in the controller 400 and two deserializers in the screen assembly 100, respectively. As a result, a first image 131 and a second image 141 are generated on the first screen 130 and the second screen 141, respectively. Subsequently, the first screen 130 and the second screen 141 project the first image 131 and the second image 141 onto the display surface 210, respectively. The virtual images corresponding to the first image 131 and the second image 141 are superimposed on the display surface 210 to form an image.

[0073] In this embodiment, the imaging system is an electronic rearview mirror system, which is generally used in vehicles. During operation, the human eye can observe an image with a certain stereoscopic effect formed by the superposition of the first image 131 and the second image 141 on the display surface 210. Compared with some existing electronic rearview mirror systems that display planar images on the screen, the stereoscopic image displayed on the display surface 210 by the electronic rearview mirror system in this embodiment is a virtual image, which is closer to the image displayed by a traditional optical rearview mirror, thereby reducing the driver's adaptation cost and providing a wider field of vision.

[0074] Figure 5 The layout of the electronic rearview mirror system in a vehicle is shown. The system includes two camera modules 300: a first camera module 310 and a second camera module 320; two screen assemblies 100: a first screen assembly 110 and a second screen assembly 120; and two display surfaces 210: a first display surface 211 and a second display surface 212. The first camera module 310 and the second camera module 320 are respectively located on the front sides of the left and right front door panels of the vehicle. The first screen assembly 110 and the second screen assembly 120 are respectively located on the left and right sides of the vehicle's dashboard 500. The first display surface 211 and the second display surface 212 are respectively located on the left and right sides of the vehicle's dashboard 500. The first screen assembly 110 is located directly below the first display surface 211 and maintains a certain tilt angle with it. The second screen assembly 120 is located directly below the second display surface 212 and maintains a certain tilt angle with it.

[0075] The first camera module 310, the first screen assembly 110, and the first display surface 211 constitute an imaging system. The second camera module 320, the second screen assembly 120, and the second display surface 212 constitute an imaging system. The controller 400 is electrically connected to the first camera module 310, the first screen assembly 110, the second camera module 320, and the second screen assembly 120.

[0076] The first camera module 310 acquires video signals from the left rear of the vehicle and sends them to the controller 400. The controller 400 processes the video signals to obtain a first video signal and a second video signal, and sends the first video signal and the second video signal to the first screen 130 and the second screen 140 in the first screen assembly 110, respectively. The first screen 130 and the second screen 140 generate a first image 131 and a second image 141 from the left rear of the vehicle, respectively, and project the first image 131 and the second image 141 onto the first display surface 211. The virtual images corresponding to the first image 131 and the second image 141 are superimposed on the first display surface 211 to form an image from the left rear of the vehicle.

[0077] The second camera module 320 acquires video signals from the right rear of the vehicle and sends them to the controller 400. The controller 400 processes the video signals to obtain a first video signal and a second video signal, and sends the first video signal and the second video signal to the first screen 130 and the second screen 140 in the second screen assembly 120, respectively. The first screen 130 and the second screen 140 generate a first image 131 and a second image 141 from the right rear of the vehicle, respectively, and project the first image 131 and the second image 141 onto the second display surface 212. The virtual images corresponding to the first image 131 and the second image 141 are superimposed on the second display surface 212 to form an image of the right rear of the vehicle.

[0078] It should be noted that when the electronic rearview mirror system is applied to a vehicle, the first image 131 can be a vehicle, pedestrians, etc., and the second image 141 can be a road. With the same screen size, the first image 131 displayed in the electronic rearview mirror system of this embodiment is larger, has 3D and depth-of-field effects, and the imaging effect is closer to that of a traditional optical rearview mirror.

[0079] In other embodiments, the imaging system is not limited to vehicles, but can also be applied to other means of transportation such as aircraft and ships, or to security monitoring equipment, medical equipment, robots, etc., without limitation.

[0080] The working principle of the imaging system provided in this application embodiment is as follows: During the operation of the imaging system, the camera module 300 transmits the acquired video signal to the controller 400. The controller 400 processes the video signal to obtain a first video signal and a second video signal, and transmits the first video signal and the second video signal to the first screen 130 and the second screen 140 respectively. The first screen 130 generates a first image 131 and projects the first image 131 onto the display surface 210. The second screen 140 generates a second image 141 and projects the second image 141 onto the display surface 210. The first image 131 and the second image 141 form corresponding virtual images on the display surface 210, and the virtual images corresponding to the first image 131 and the second image 141 are superimposed to form an image for external display.

[0081] The beneficial effects of the imaging system provided in this application embodiment include at least the following: the first image 131 generated by the first screen 130 and the second image 141 generated by the second screen 140 are superimposed on the display surface 210 to form an image with a certain three-dimensional effect. This image is closer to the image displayed by a traditional optical rearview mirror than a planar image, thereby reducing the driver's adaptation cost; the first screen 130 and the second screen 140 are set at a certain distance apart, and the virtual images corresponding to the first image 131 generated by the first screen 130 and the second image 141 generated by the second screen 141 are superimposed on the display surface 210 to form an image with a depth effect, and the first image 131 and the second image 141 can be enlarged or reduced non-proportionally; with the same screen size as the existing electronic rearview mirror system, the display surface 210 of this imaging system displays a larger field of view.

[0082] In summary, the embodiments of this application provide an imaging system including a first screen 130, a second screen 140, and a display surface 210. The first screen 130 and the second screen 140 generate a first image 131 and a second image 141, respectively, and project them onto the display surface 210. The virtual images corresponding to the first image 131 and the second image 141 are superimposed on the display surface 210 to form an image. The image displays a large field of view and is closer to the image displayed by a traditional optical rearview mirror than a planar image, thus reducing the driver's adaptation cost.

[0083] The above description is merely a specific embodiment of this application, but the scope of protection of this application is not limited thereto. Any variations or substitutions that can be easily conceived by those skilled in the art within the technical scope disclosed in this application should be included within the scope of protection of this application. Therefore, the scope of protection of this application should be determined by the scope of the claims.

Claims

1. An imaging system, characterized in that, The system includes a first screen (130), a second screen (140), and an imaging module (200). The imaging module (200) has a display surface (210) for imaging. The first screen (130) is used to generate a first image (131) and project the first image (131) onto the display surface (210). The second screen (140) is used to generate a second image (141) and project the second image (141) onto the display surface (210). The display surface (210) is used to display an image formed by superimposing the first image (131) and the second image (141).

2. The imaging system according to claim 1, characterized in that, The first screen (130) and the second screen (140) are spaced apart along the normal direction of the first screen (130) or the normal direction of the second screen (140).

3. The imaging system according to claim 2, characterized in that, The first screen (130) is closer to the display surface (210) relative to the second screen (140), and the imaging system satisfies: D1 = (0.05 ~ 0.15) * D2; Wherein, D1 is the distance between the first screen (130) and the second screen (140), and D2 is the distance between the center of the first screen (130) and the center of the display surface (210).

4. The imaging system according to claim 3, characterized in that, The imaging system satisfies the following condition: D1 = 10mm ~ 80mm.

5. The imaging system according to claim 2, characterized in that, Along the normal direction of the first screen (130) or the normal direction of the second screen (140), the distance from any point on the second screen (140) to the display surface (210) is 70mm to 150mm.

6. The imaging system according to claim 2, characterized in that, The display surface (210) is set at an angle relative to the first screen (130) or the second screen (140).

7. The imaging system according to claim 6, characterized in that, The angle between the display surface (210) and the first screen (130) or the second screen (140) is 30° to 40°.

8. The imaging system according to claim 2, characterized in that, The projections of the first screen (130) and the second screen (140) at least partially overlap along the normal direction of the first screen (130) or the normal direction of the second screen (140).

9. The imaging system according to claim 2, characterized in that, Of the first screen (130) and the second screen (140), the one closest to the display surface (210) is a transparent screen, and the other is a liquid crystal screen.

10. The imaging system according to claim 1, characterized in that, The imaging system also includes a camera module (300) and a controller (400), the controller (400) being electrically connected to the camera module (300), the first screen (130) and the second screen (140); The camera module (300) is used to acquire images in real time and generate video signals. The controller (400) is used to process the video signals to obtain a first video signal and a second video signal. The first screen (130) is used to acquire the first video signal and generate the first image (131). The second screen (140) is used to acquire the second video signal and generate the second image (141).

11. The imaging system according to any one of claims 1-10, characterized in that, The imaging system is an electronic rearview mirror system.

Images