Camera module and electronic device
By combining lens components, reflectors, drive components, and image acquisition components, the problem of excessive size of camera modules at long focal lengths is solved, achieving stepless zoom and high-definition image quality, making it suitable for electronic devices.
Patent Information
- Application Number
- CN202210761743.5
- Authority / Receiving Office
- CN · China
- Patent Type
- Patents(China)
- Current Assignee / Owner
- Filing Date
- 2022-06-29
- Publication Date
- 2026-02-27
- Estimated Expiration
- 2042-06-29
AI Technical Summary
Existing camera modules are bulky in telephoto shooting mode, making them difficult to apply to electronic devices. Furthermore, existing zoom methods cannot achieve stepless zoom and high-definition image quality.
The camera module employs a combination of lens assembly, reflector, drive assembly, and image acquisition assembly. The drive assembly moves the image acquisition assembly relative to the reflector, changing the image distance of the camera module and achieving stepless zoom. Furthermore, the camera module's size remains stable during optical zoom through the cooperation of multiple image sensors and lenses.
It achieves stepless zoom in a small size while maintaining high-definition image quality, making it suitable for various electronic devices.
Smart Images

Figure CN115808832B_ABST
Abstract
Description
Technical Field
[0001] This application belongs to the field of electronic technology, specifically relating to a camera module and an electronic device. Background Technology
[0002] With the continuous development of communication technology, camera modules are commonly installed on electronic devices. In order to meet users' shooting needs in different scenarios, camera modules are required to be able to perform stepless zoom based on the distance to the object being photographed, so as to switch between shooting modes such as wide-angle, medium focal length, and telephoto.
[0003] However, existing camera modules require a relatively high height for telephoto shooting, resulting in an excessively large overall size that makes them difficult to apply to electronic devices. Summary of the Invention
[0004] This application aims to provide a camera module and electronic device that at least solves or improves the problem that existing camera modules are difficult to achieve stepless zoom in a small size.
[0005] To solve the above-mentioned technical problems, this application is implemented as follows:
[0006] In a first aspect, embodiments of this application propose a camera module, including: a lens assembly, a reflector, a driving assembly, and an image acquisition assembly;
[0007] The reflector is disposed opposite to the lens assembly, and the driving assembly is connected to the image acquisition assembly; after light passes through the lens assembly, it is reflected by the reflector and reaches the image acquisition assembly.
[0008] The driving component is used to drive the image acquisition component to move relative to the reflector, so as to change the image distance of the camera module.
[0009] According to an embodiment of this application, a camera module is provided, wherein the image acquisition component includes a first image sensor, a second image sensor, and a first lens, wherein the first lens is configured correspondingly to the second image sensor;
[0010] The camera module includes a first image distance range and a second image distance range;
[0011] When the camera module is within the first image distance range, light passes through the lens assembly, is reflected by the reflector, and reaches the first image sensor;
[0012] When the camera module is within the second image distance range, the light passes through the lens assembly, is reflected by the reflector, and then passes through the first lens to reach the second image sensor.
[0013] According to an embodiment of this application, a camera module is provided in which the maximum value of the first image distance range is equal to the minimum value of the second image distance range.
[0014] According to an embodiment of this application, when the camera module is within a first image distance range, the driving component can drive the first image sensor to move between a first position close to the reflector and a second position far from the reflector.
[0015] When the camera module is within the second image distance range, the driving component can drive the second image sensor and the first lens to move between the first position and the second position;
[0016] The equivalent image distance of the camera module when the first image sensor is located at the second position is equal to the equivalent image distance of the camera module when the second image sensor is located at the first position.
[0017] According to an embodiment of this application, a camera module is provided, wherein the driving component includes a first conveyor, and the first image sensor and the second image sensor are spaced apart along the conveying direction of the first conveyor.
[0018] According to an embodiment of this application, a camera module is provided, wherein the image acquisition component further includes a second lens; the second lens is correspondingly disposed with respect to the first image sensor; when the camera module is within a first image distance range, light passes through the lens assembly, is reflected by the reflector, and then passes through the second lens to reach the first image sensor.
[0019] According to an embodiment of this application, a camera module is provided, wherein the driving component includes a second transmission element and a third transmission element;
[0020] The first image sensor is mounted on the second transmission component, and the second transmission component is used to drive the first image sensor to move.
[0021] The second image sensor and the first lens are mounted on the third transmission member, which is used to drive the second image sensor and the first lens to move.
[0022] According to an embodiment of this application, a camera module is provided in which the number of second image sensors is at least two, and the at least two second image sensors are spaced apart along the conveying direction of the third conveyor.
[0023] A camera module according to an embodiment of this application further includes: a housing, the housing having an opening and a receiving cavity communicating with the opening;
[0024] The lens assembly is located at the opening, and the reflector, the image acquisition assembly, and the driving assembly are all located within the receiving cavity.
[0025] A camera module according to an embodiment of this application further includes a rotating component, wherein the reflector is connected to the rotating component, and the rotating component is used to drive the reflector to rotate.
[0026] Secondly, embodiments of this application provide an electronic device, including: a camera module as described in any of the preceding claims.
[0027] In the embodiments of this application, during the process of shooting the target object, the image acquisition component can be driven to move relative to the reflector by the driving component according to the actual shooting needs, so that the light path between the lens component and the image acquisition component changes after the light is reflected by the reflector, thereby changing the image distance of the camera module. At the same time, the lens component is controlled to adjust, so as to realize the stepless zoom of the camera module.
[0028] At the same time, since the lens assembly does not undergo significant volume changes during optical zoom, the thickness of the camera module along the optical axis of the lens assembly is relatively small, allowing the camera module to achieve stepless zoom in a small volume.
[0029] Additional aspects and advantages of this application will be set forth in part in the description which follows, and in part will be obvious from the description, or may be learned by practice of this application. Attached Figure Description
[0030] The above and / or additional aspects and advantages of this application will become apparent and readily understood from the description of the embodiments taken in conjunction with the following drawings, in which:
[0031] Figure 1 This is one of the schematic diagrams of a camera module according to an embodiment of this application;
[0032] Figure 2 According to the embodiments of this application Figure 1 A schematic diagram of the reflected light path distribution from the reflector to the image acquisition component when the camera module is shooting at the first shooting distance;
[0033] Figure 3 According to the embodiments of this application Figure 1 A schematic diagram of the reflected light path distribution from the reflector to the image acquisition component when the camera module is shooting at the second shooting distance;
[0034] Figure 4 According to the embodiments of this application Figure 1 A schematic diagram of the reflected light path distribution from the reflector to the image acquisition component when the camera module is shooting at the third shooting distance;
[0035] Figure 5 According to the embodiments of this application Figure 1 A schematic diagram of the reflected light path distribution from the reflector to the image acquisition component when the camera module is shooting at the fourth shooting distance;
[0036] Figure 6 This is a schematic diagram of the reflected light path distribution from the reflector to the image acquisition component in the camera module according to an embodiment of this application;
[0037] Figure 7 This is a second schematic diagram of a camera module according to an embodiment of this application;
[0038] Figure 8 According to the embodiments of this application Figure 6 A schematic diagram of the reflected light path distribution from the reflector to the image acquisition component when the camera module is shooting at the fifth shooting distance;
[0039] Figure 9 According to the embodiments of this application Figure 6 A schematic diagram of the reflected light path distribution from the reflector to the image acquisition component when the camera module is shooting at the sixth shooting distance;
[0040] Figure 10 According to the embodiments of this application Figure 6 A schematic diagram of the reflected light path distribution from the reflector to the image acquisition component when the camera module is shooting at the seventh shooting distance;
[0041] Figure 11 According to the embodiments of this application Figure 6 A schematic diagram of the reflected light path distribution from the reflector to the image acquisition component when the camera module is shooting at the eighth shooting distance;
[0042] Figure 12 According to the embodiments of this application Figure 6 A schematic diagram of the reflected light path distribution from the reflector to the image acquisition component when the camera module is shooting at the ninth shooting distance.
[0043] Figure label:
[0044] 100, Lens assembly; 200, Reflector; 300, Drive assembly; 400, Image acquisition assembly; 500, Housing; 600, Rotating component; 31, First transmission component; 32, Second transmission component; 33, Third transmission component; 41, First image sensor; 42, Second image sensor; 43, First lens; 44, Second lens; 51, Opening; 52, Receiving cavity; 521, Bottom wall. Detailed Implementation
[0045] The embodiments of this application will now be described in detail. Examples of these embodiments are illustrated in the accompanying drawings, wherein the same or similar reference numerals denote the same or similar elements or elements having the same or similar functions throughout. The embodiments described below with reference to the accompanying drawings are exemplary and are only used to explain this application, and should not be construed as limiting this application. All other embodiments obtained by those skilled in the art based on the embodiments of this application without inventive effort are within the scope of protection of this application.
[0046] The terms "first" and "second" in the specification and claims of this application may explicitly or implicitly include one or more of the features. In the description of this application, unless otherwise stated, "multiple" means two or more. Furthermore, "and / or" in the specification and claims indicates at least one of the connected objects, and the character " / " generally indicates that the preceding and following objects are in an "or" relationship.
[0047] In the description of this application, it should be understood that the terms "center", "longitudinal", "lateral", "length", "width", "thickness", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", "clockwise", "counterclockwise", "axial", "radial", "circumferential", etc., indicating the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings, 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.
[0048] In the description of this application, it should be noted that, unless otherwise expressly specified and limited, the terms "installation," "connection," and "linking" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral connection; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; and they can refer to the internal connection between two components. Those skilled in the art can understand the specific meaning of the above terms in this application based on the specific circumstances.
[0049] In related technologies, the zooming of camera modules during the shooting process of a target object is mainly divided into three types: digital zoom, optical zoom, and "relay" zoom, as detailed below:
[0050] Digital zoom: This method uses software to analyze the colors surrounding existing pixels and inserts pixels using a special algorithm based on these colors, thus increasing the area of each pixel in the image. Although this zoom method does not change the lens's focal length, it significantly degrades image quality.
[0051] Optical zoom: This method uses an electric motor within the camera module to drive a lens group, changing the focal length of the camera module's lens to achieve a lossless telephoto shooting effect. The longer the lens of the camera module, the larger the physical range of the variable focal length and the greater the zoom ratio. However, when performing telephoto shooting, this zoom method requires the camera module to be set to a sufficient length along the optical axis and also requires an electric motor to be installed inside the camera module. Therefore, this zoom method is mostly suitable for various professional cameras and is difficult to apply to electronic devices with thin bodies such as mobile phones and tablets.
[0052] "Relay-style" zoom utilizes multiple optical components with different focal lengths. Through the combination of these components, different zoom magnifications such as 0.5x, 1x, and 1.5x are achieved during shooting. The camera module can be configured as a periscope-style module based on this zoom method, achieving higher zoom magnifications without increasing module thickness. However, in practical applications, algorithmic assistance is still required when switching between relevant zoom magnifications, and it is not possible to obtain consistently high-definition image quality during zoom magnification changes.
[0053] To address the aforementioned issues, this application achieves stepless zoom of the camera module while miniaturizing it, and captures high-definition images based on the camera module.
[0054] The following is combined Figures 1-12 This application describes a camera module and an electronic device according to embodiments thereof.
[0055] like Figure 1 and Figure 7 As shown in the embodiment of this application, a camera module is proposed, including: a lens assembly 100, a reflector 200, a driving assembly 300, and an image acquisition assembly 400.
[0056] The reflector 200 is positioned opposite to the lens assembly 100, and the drive assembly 300 is connected to the image acquisition assembly 400. After passing through the lens assembly 100, the light is reflected by the reflector 200 and reaches the image acquisition assembly 400.
[0057] Upon receiving the user's focus input, the drive component 300 drives the image acquisition component 400 to move relative to the reflector 200 based on the input parameters of the focus input, so as to change the image distance of the camera module.
[0058] In practical applications, the camera module is mounted on an electronic device, and the lens assembly 100 on the camera module is communicatively connected to the controller on the electronic device. The user can provide focus input via the display screen on the electronic device to control the drive assembly 300, thereby changing the relative position of the reflector 200 and the image acquisition assembly 400. In this embodiment, the focus input parameters can be provided on the display screen based on pressing virtual controls or based on sliding or stretching input methods.
[0059] During the shooting process of the target object, the image acquisition component 400 can be moved relative to the reflector 200 by the drive component 300 according to the actual shooting needs. This causes the light path between the lens component 100 and the image acquisition component 400 to change after the light is reflected by the reflector 200, thereby changing the image distance of the camera module. At the same time, the lens component 100 is controlled to make adjustments to achieve stepless zoom of the camera module.
[0060] At the same time, since the lens assembly 100 does not undergo significant volume changes during optical zoom, the thickness of the camera module along the optical axis of the lens assembly 100 is relatively small, allowing the camera module to achieve stepless zoom in a small volume.
[0061] In practical applications, in order to install the optical components inside the camera module, the camera module of this application embodiment is also provided with a housing 500, the housing 500 having an opening 51 and a receiving cavity 52 communicating with the opening 51.
[0062] In this embodiment, the lens assembly 100 is disposed at the opening 51, and the reflector 200, the drive assembly 300, and the image acquisition assembly 400 are respectively disposed within the receiving cavity 52. Furthermore, the receiving cavity 52 has a bottom wall 521, the optical axis of the lens assembly 100 is perpendicular to the bottom wall 521, and the reflector 200 and the drive assembly 300 are respectively disposed on the bottom wall 521.
[0063] In some examples, this embodiment may fix the reflector 200 within the receiving cavity 52, with the reflector 200 positioned opposite the opening 51. Simultaneously, the driving assembly 300 may drive the image acquisition assembly 400 to move relative to the reflector 200 along a straight or curved path, thereby adjusting the relative position of the reflector 200 and the image acquisition assembly 400.
[0064] The drive assembly 300 shown in the embodiments of this application can be selected from lead screw drive modules, belt transmission assemblies, electric push rods, etc., which are known in the art, and no specific limitation is made here.
[0065] To facilitate adjustment of the relative positions of the reflector 200 and the image acquisition component 400, the driving component 300 shown in this embodiment drives the image acquisition component 400 to move between a first position and a second position along the direction of light reflection by the reflector 200. The first position is closer to the reflector 200, and the second position is farther from the reflector 200.
[0066] In some examples, the lens assembly 100 of this application embodiment uses a zoom lens known in the art. The zoom lens includes multiple lenses arranged coaxially. When the optical path length between the zoom lens and the image acquisition assembly 400 changes, the zoom lens simultaneously adjusts the distance between the multiple lenses accordingly to achieve optical zoom. Since optical zooming of zoom lenses is a well-known technology in the field of optics, it will not be described in detail here.
[0067] In some examples, the reflector 200 in this embodiment may be an optical device such as a reflecting prism or a plane mirror. The reflector 200 is used to reflect light from the lens assembly 100 so that the image acquisition assembly 400 can receive the light reflected by the reflector 200. One or more reflectors 200 may be provided, and no specific limitation is made here.
[0068] To ensure high imaging quality of the camera module, the planar accuracy of the reflective surface on the reflector 200 must be ensured. For example, the accuracy of the reflective surface should reach the nanometer level to minimize optical path distortion and ensure the quality of reflected light.
[0069] Furthermore, the camera module in this embodiment may also be provided with a rotating member 600, and the reflector 200 is connected to the rotating member 600. The rotating member 600 is used to drive the reflector 200 to rotate.
[0070] In this embodiment, the rotating member 600 is disposed within the receiving cavity 52 and mounted on the bottom wall 521. The rotating member 600 is positioned opposite the opening 51.
[0071] In this embodiment, the rotating component 600 drives the reflector 200 to rotate, thereby adjusting the posture of the reflector 200 and changing the orientation of the reflective surface on the reflector 200. This allows light to pass through the lens assembly 100 and be reflected by the reflector 200 before reaching the image acquisition assembly 400 smoothly.
[0072] In some examples, this embodiment may specifically set the optical axis of the lens assembly 100 to be perpendicular to the bottom wall 521 of the receiving cavity 52, and the incident light path from the lens assembly 100 to the reflector 200 to be perpendicular to the reflected light path of the reflector 200.
[0073] Based on the above optical path design, this embodiment can limit the reflected optical path to a plane parallel to the bottom wall 521. This not only facilitates the adjustment of the relative position between the image acquisition component 400 and the reflector 200 to achieve stepless zoom of the camera module, but also makes it easier to minimize the thickness of the camera module along the optical axis of the lens component 100, thereby achieving a miniaturized design of the camera module.
[0074] In some embodiments, such as Figure 1 and Figure 7 As shown, the image acquisition component 400 of this application embodiment includes a first image sensor 41, a second image sensor 42 and a first lens 43, with the first lens 43 corresponding to the second image sensor 42.
[0075] The camera module includes a first image distance range and a second image distance range. When the camera module is within the first image distance range, light passes through the lens assembly 100 and is reflected by the reflector 200 before reaching the first image sensor 41. When the camera module is within the second image distance range, light passes through the lens assembly 100 and is reflected by the reflector 200 before reaching the second image sensor 42 after passing through the first lens 43.
[0076] It is understood that in this embodiment, the first image sensor 41 and the second image sensor 42 can be driven sequentially to positions opposite to the reflector 200 by the driving component 300, so that when the first image sensor 41 is opposite to the reflector 200, the camera module can perform optical zoom within the first image distance range, and when the second image sensor 42 is opposite to the reflector 200, the camera module can perform optical zoom within the second image distance range.
[0077] In this embodiment, the first lens 43 is a focusing lens. Based on the configuration of the first lens 43, this embodiment can increase the optical path length of the camera module without changing the relative position of the reflector 200 and the second image sensor 42. The increase in the optical path length of the camera module is equal to the focal length of the first lens 43.
[0078] In some embodiments, in order to achieve stepless zoom of the camera module, the maximum value of the first image distance range in this application embodiment is equal to the minimum value of the second image distance range.
[0079] Thus, in practical applications, depending on the actual shooting requirements, the image distance of the camera module can be set to gradually increase and smoothly transition from the first image distance range to the second image distance range, or the image distance of the camera module can be set to gradually decrease and smoothly transition from the second image distance range to the first image distance range.
[0080] In some embodiments, such as Figure 1 and Figure 7As shown, in order to more conveniently perform stepless zoom on the camera module, this embodiment can further configure the operating status of the first image sensor 41 and the second image sensor 42.
[0081] Specifically, when the camera module is within the first image distance range, the driving component 300 can drive the first image sensor 41 to move between a first position close to the reflector 200 and a second position away from the reflector 200.
[0082] When the camera module is in the second image distance range, the driving component 300 can drive the second image sensor 42 and the first lens 43 to move between the first position and the second position.
[0083] The equivalent image distance of the camera module when the first image sensor 41 is in the second position is equal to the equivalent image distance of the camera module when the second image sensor 42 is in the first position.
[0084] In practical applications, when the shooting scene of the camera module switches from close-up to distant view, the first image sensor 41 can be moved from the first position to the second position by the driving component 300. At the same time as the first image sensor 41 leaves the second position, the driving component 300 drives the second image sensor 42 to the first position. Then, the driving component 300 drives the second image sensor 42 to move from the first position toward the second position, so as to increase the continuity of the image distance of the camera module and meet the actual shooting requirements.
[0085] Accordingly, when the shooting scene of the camera module switches from a distant view to a close view, the second image sensor 42 can be moved from the second position to the first position by the driving component 300. At the same time as the second image sensor 42 leaves the first position, the driving component 300 drives the first image sensor 41 to move to the second position. Then, the driving component 300 drives the first image sensor 41 to move from the second position toward the first position, so as to realize the continuous reduction of the image distance of the camera module and meet the actual shooting requirements.
[0086] In some embodiments, such as Figure 1 and Figure 2 As shown, the driving component 300 in this embodiment includes a first conveyor 31, a first image sensor 41 and a second image sensor 42, which are spaced apart along the conveying direction of the first conveyor 31.
[0087] Based on the first conveyor 31, this embodiment can conveniently drive the first image sensor 41 and the second image sensor 42 to move sequentially to the position opposite to the reflector 200, and can ensure that the first image sensor 41 and the second image sensor 42 can move between the first position close to the reflector 200 and the second position far away from the reflector 200, so as to realize the stepless zoom of the camera module.
[0088] In practical applications, when the first conveyor 31 drives the first image sensor 41 away from the second position, it should also be ensured that the first conveyor 31 drives the second image sensor 42 to the first position, so as to realize the switching between the first image distance range and the second image distance range of the camera module, thereby realizing the stepless zoom of the camera module.
[0089] In this embodiment, the first conveyor 31 can be a conveyor belt. Thus, this embodiment can utilize the characteristic of the conveyor belt to circulate along a fixed rotation direction, thereby driving the first image sensor 41 and the second image sensor 42 to move sequentially to a position opposite to the reflector 200, so as to achieve stepless zoom of the camera module.
[0090] The first image sensor 41 and the second image sensor 42 in this embodiment can be any one of a super-sensitive image sensor, a black and white image sensor, a color image sensor, and a depth image sensor, without any specific limitation.
[0091] The following is combined Figures 2 to 5 The stepless zoom of the camera module in the embodiments of this application will be described.
[0092] like Figure 2 As shown, when the camera module is shooting at the target object at the first shooting distance, the first shooting distance is set to be suitable for extremely short shooting scenarios. In this case, the camera module needs to shoot at an extremely small image distance.
[0093] Therefore, based on the first shooting distance, the user can configure the focus input parameters as the first input parameters. When the user inputs the first input parameters to the display screen of the electronic device, the first transmission member 31 moves clockwise to move the first image sensor 41 to a first position opposite to the reflector 200. Thus, light passing through the lens assembly 100 is reflected by the reflector 200 and then received by the first image sensor 41.
[0094] like Figure 3 As shown, when the camera module is shooting at a second shooting distance from the target object, setting the second shooting distance is suitable for short-distance shooting scenarios. In this case, the user can configure the focus input parameter as the second input parameter according to the second shooting distance, so as to achieve the desired effect. Figure 2 The image distance of the camera module is increased based on the embodiment shown.
[0095] When the user inputs the second input parameter to the display screen of the electronic device, the first transmission component 31 continues to move clockwise to drive the first image sensor 41 from a first position close to the reflector 200 to a second position away from the reflector 200, thereby increasing the reflected light path between the reflector 200 and the first image sensor 41 and increasing the image distance of the camera module.
[0096] like Figure 4 As shown, when the camera module is shooting the target object at the third shooting distance, the third shooting distance is set to be suitable for medium-distance shooting scenarios.
[0097] If the first image sensor 41 has moved to the second position opposite to the reflector 200, the user can configure the focus input parameter as the third input parameter according to the third shooting distance. When the user inputs the third input parameter to the display screen of the electronic device, the first transmission member 31 continues to move clockwise to drive the first image sensor 41 away from the second position and move the second image sensor 42 to the first position opposite to the reflector 200.
[0098] In this scenario, after passing through the lens assembly 100, the light is reflected by the reflector 200, then passes through the first lens 43, and is finally received by the second image sensor 42. Since the equivalent image distance of the camera module when the first image sensor 41 is in the second position is equal to the equivalent image distance of the camera module when the second image sensor 42 is in the first position, this embodiment of the application achieves stepless zoom of the camera module.
[0099] like Figure 5 As shown, when the camera module is shooting the target object at the fourth shooting distance, the fourth shooting distance is set to be suitable for long-distance shooting scenarios.
[0100] In this scenario, the user can configure the focus input parameter as the fourth input parameter based on the fourth shooting distance, in order to... Figure 4 Based on the embodiment shown, by inputting a fourth input parameter to the display screen on the electronic device, the first conveyor 31 continues to convey in a clockwise direction to drive the second image sensor 42 to move from the first position to the second position, so as to gradually increase the image distance of the camera module.
[0101] Based on the solutions shown in the above embodiments, such as Figure 6 As shown, the image acquisition component 400 of this application embodiment further includes a second lens 44; the second lens 44 is correspondingly disposed with respect to the first image sensor 41; when the camera module is within the first image distance range, light passes through the lens assembly 100, is reflected by the reflector 200, and then passes through the second lens 44 to reach the first image sensor 41. The second lens 44 is a focusing lens.
[0102] In this embodiment, the equivalent image distance of the camera module is increased by configuring the first image sensor 41 with the second lens 44.
[0103] It should be noted that, in order to meet the stepless zoom requirements of the camera module, the image distance of the first lens 43 shown in this embodiment is greater than the image distance of the second lens 44, so that the equivalent image distance of the first image sensor 41 when it is in the second position is equal to the equivalent image distance of the second image sensor 42 when it is in the first position.
[0104] In some embodiments, such as Figure 7 As shown, the driving component in this embodiment includes a second transmitting element 32 and a third transmitting element 33.
[0105] The first image sensor 41 is mounted on the second conveyor 32, which is used to drive the first image sensor 41 to move; the second image sensor 42 and the first lens 43 are mounted on the third conveyor 33, which is used to drive the second image sensor 42 and the first lens 43 to move.
[0106] In this embodiment, the positions of the first image sensor 41 and the second image sensor 42 can be adjusted based on the type and arrangement of the second transmission member 32 and the third transmission member 33.
[0107] In some embodiments, both the second conveyor 32 and the third conveyor 33 can be conveyor belts, and the second conveyor 32 and the third conveyor 33 are arranged side by side.
[0108] For example, in this embodiment, the second conveyor 32 and the third conveyor 33 can be arranged in an upper and lower configuration on the same vertical plane to achieve a side-by-side arrangement; or the second conveyor 32 and the third conveyor 33 can be arranged in a left and right configuration on the same horizontal plane to achieve a side-by-side arrangement. No specific limitation is made in this regard.
[0109] Thus, in practical applications, this embodiment can either move the first image sensor 41 between the first position and the second position by means of the second transmission member 32 alone, or move the second image sensor 42 and the first lens 43 between the first position and the second position by means of the third transmission member 33 alone.
[0110] In some embodiments, both the second conveyor 32 and the third conveyor 33 can be a conveyor chain, and the combination of the second conveyor 32 and the third conveyor 33 can form a closed-loop conveying mechanism. The first image sensor 41, the second image sensor 42, and the first lens 43 are all provided with overlapping structures corresponding to the conveyor chain.
[0111] In practical applications, the imaging devices in the first image sensor 41, the second image sensor 42, and the first lens 43 are all moved between the first position and the second position under the drive of the second conveyor 32. The imaging devices in the first image sensor 41, the second image sensor 42, and the first lens 43 that do not need to perform imaging can be transferred from the second conveyor 32 to the third conveyor 33.
[0112] In some embodiments, if it is necessary to increase the image distance of the camera module, the second conveyor 32 is first activated, which moves the first image sensor 41 from the first position to the second position. After the second conveyor 32 moves the first image sensor 41 to the second position, it stops operating. Then, the third conveyor 33 is activated, which moves the first image sensor 41 away from the second position and moves the second image sensor 42 and the first lens 43 to the first position opposite to the reflector 200. Then, the third conveyor 33 stops moving.
[0113] If it is necessary to further increase the image distance of the camera module, the second transmission component 32 is activated again, and the second image sensor 42 and the first lens 43 are moved from the first position to the second position by the second transmission component 32.
[0114] For situations where it is necessary to reduce the image distance of the camera module, the control principle is similar to that described above, so it will not be elaborated on here.
[0115] In some embodiments, the number of second image sensors 42 is at least two, and the at least two second image sensors 42 are spaced apart along the conveying direction of the third conveyor 33.
[0116] In this embodiment, each second image sensor 42 is equipped with a first lens 43. When each second image sensor 42 is positioned opposite to the reflector 200, light first passes through the lens assembly 100, is reflected by the reflector 200, and then passes through the first lens 43 to reach the second image sensor 42.
[0117] Since each second image sensor 42 can move between a first position close to the reflector 200 and a second position far from the reflector 200 under the drive of the drive component, in order to achieve stepless zoom of the camera module, this embodiment can simultaneously drive the next second image sensor 42 to move to the first position opposite to the reflector 200 when the previous second image sensor 42 leaves the second position, so that the reflected light from the reflector 200 can sequentially reach the two adjacent second image sensors 42.
[0118] Meanwhile, this embodiment also configures the image distance of the first lens 43 corresponding to two adjacent second image sensors 42 so that the equivalent image distance of the camera module when the previous second image sensor 42 is in the second position is equal to the equivalent image distance of the camera module when the next second image sensor 42 is in the first position.
[0119] Thus, as multiple third conveying components 33 are sequentially transported, each second image sensor 42 moves sequentially to a position opposite to the reflector 200, and the image distance of the camera module gradually increases continuously, realizing stepless zoom of the camera module.
[0120] The following is combined Figures 8 to 12 The stepless zoom of the camera module in the embodiments of this application will be described.
[0121] like Figure 8 As shown, when the camera module is shooting at the target object at the fifth shooting distance, the fifth shooting distance is set to be suitable for extremely short shooting scenarios. In this case, the camera module needs to shoot at an extremely small image distance.
[0122] Therefore, based on the fifth shooting distance, the user can configure the focus input parameter as the fifth input parameter. When the user inputs the fifth input parameter to the display screen of the electronic device, the second conveyor 32 moves the first image sensor 41 to a first position opposite to the reflector 200, while the third conveyor 33 remains inactive, so that the second image sensor 42 and the first lens 43 are positioned away from the reflector 200. Thus, light, after passing through the lens assembly 10, is reflected by the reflector 200 and then reaches the first image sensor 41.
[0123] like Figure 9 As shown, when the camera module is shooting at the target object at the sixth shooting distance, setting the sixth shooting distance is suitable for short-distance shooting scenarios. In this case, the user can configure the focus input parameter to the sixth input parameter according to the sixth shooting distance, so as to achieve the desired effect. Figure 8 The image distance of the camera module is increased based on the embodiment shown.
[0124] When the user inputs the sixth input parameter to the display screen of the electronic device, the third transmission component 33 does not start operation, and the second transmission component 32 drives the first image sensor 41 to move from a first position close to the reflector 200 to a second position away from the reflector 200, so as to increase the reflected light path between the reflector 200 and the first image sensor 41, thereby increasing the image distance of the camera module.
[0125] like Figure 10 As shown, when the camera module is shooting at the target object at the seventh shooting distance, the seventh shooting distance is set to be suitable for medium-distance shooting scenarios.
[0126] If the first image sensor 41 has moved to the second position opposite to the reflector 200, the user can configure the focus input parameter as the seventh input parameter according to the seventh shooting distance. When the user inputs the seventh input parameter to the display screen of the electronic device, the second transmission member 32 and the third transmission member 33 are activated respectively. The second transmission member 32 drives the first image sensor 41 away from the second position until the first image sensor 41 moves to the junction of the second transmission member 32 and the third transmission member 33. The third transmission member 33 drives one of the two second image sensors 42 to move to the first position opposite to the reflector 200.
[0127] In this scenario, after passing through the lens assembly 100, the light is reflected by the reflector 200, and then passes through the first lens 43 to reach one of the second image sensors 42. Since the equivalent image distance of the camera module when the first image sensor 41 is in the second position is equal to the equivalent image distance of the camera module when the second image sensor 42 is in the first position, the embodiments of this application achieve stepless zoom of the camera module.
[0128] like Figure 11 As shown, when the camera module is shooting at the target object at the eighth shooting distance, the eighth shooting distance is set to be suitable for long-distance shooting scenarios.
[0129] In this case, the user can configure the focus input parameter to the eighth input parameter based on the eighth shooting distance, so as to achieve the desired effect. Figure 10 Based on the embodiment shown, by inputting an eighth input parameter to the display screen on the electronic device, the third transmission member 33 does not start operation, and the second transmission member 32 drives one of the two second image sensors 42 to move from a first position close to the reflector 200 to a second position away from the reflector 200, so as to increase the reflected light path between the reflector 200 and the second image sensor 42, thereby increasing the image distance of the camera module.
[0130] like Figure 12 As shown, when the camera module is shooting at the target object at the ninth shooting distance, the ninth shooting distance is set to be suitable for ultra-long-distance shooting scenarios.
[0131] If one of the two second image sensors 42 has moved to the second position opposite to the reflector 200, the user can configure the focus input parameter to the ninth input parameter according to the ninth shooting distance. When the ninth input parameter is input to the display screen on the electronic device, the second transmission member 32 and the third transmission member 33 are activated respectively. The second transmission member 32 drives one of the two second image sensors 42 to leave the second position until it moves to the junction of the second transmission member 32 and the third transmission member 33. The third transmission member 33 drives the other of the two second image sensors 42 to move to the first position opposite to the reflector 200.
[0132] In this scenario, after passing through the lens assembly 100, the light is reflected by the reflector 200, and then passes through the first lens 43 to reach the other of the two second image sensors 42. Since the equivalent image distance of the camera module when the previous second image sensor 42 is in the second position is equal to the equivalent image distance of the camera module when the next second image sensor 42 is in the first position, this embodiment of the application achieves stepless zoom of the camera module.
[0133] It should be noted that in this embodiment, when the third conveyor 33 stops operating, the second conveyor 32 can be started and operated, and the second conveyor 32 can drive the other of the two second image sensors 42 to move from the first position to the second position, so as to continue to increase the image distance of the camera module.
[0134] When one of the two second image sensors 42 is in the second position, the image distance of the camera module reaches its maximum value.
[0135] Secondly, embodiments of this application provide an electronic device, including: a camera module as described in any of the preceding claims.
[0136] Since the electronic device shown in this embodiment includes a camera module, and the specific solution of the camera module is the same as that in the above embodiments, the electronic device shown in this embodiment includes all the technical solutions of the above embodiments. Therefore, it has at least all the beneficial effects achieved by all the technical solutions of the above embodiments, which will not be described in detail here.
[0137] In this embodiment, the electronic device can be a mobile terminal, such as a smartphone, tablet computer, laptop computer, personal digital assistant (PDA), mobile internet device (MID), or wearable device, or other electronic devices such as digital camera, e-reader, navigator, etc., without specific limitations.
[0138] In the description of this specification, the references to terms such as "one embodiment," "some embodiments," "illustrative embodiment," "example," "specific example," or "some examples," etc., indicate that a specific feature, structure, material, or characteristic described in connection with that embodiment or example is included in at least one embodiment or example of this application. In this specification, the illustrative expressions of the above terms do not necessarily refer to the same embodiment or example. Furthermore, the specific features, structures, materials, or characteristics described may be combined in any suitable manner in one or more embodiments or examples.
[0139] Although embodiments of this application have been shown and described, those skilled in the art will understand that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of this application, the scope of which is defined by the claims and their equivalents.
Claims
1. A camera module, characterized in that, The camera module comprises: a lens assembly, a reflecting element, a driving assembly and an image acquisition assembly; the reflecting element is arranged opposite to the lens assembly, and the driving assembly is connected to the image acquisition assembly; light passes through the lens assembly, is reflected by the reflecting element, and reaches the image acquisition assembly; the driving assembly is used to drive the image acquisition assembly to move relative to the reflecting element along the reflection direction of the reflecting element to change the image distance of the camera module; the image acquisition assembly comprises a first image sensor, a second image sensor and a first lens, and the first lens is arranged corresponding to the second image sensor; the camera module comprises a first image distance range and a second image distance range; when the camera module is in the first image distance range, light passes through the lens assembly, is reflected by the reflecting element, and reaches the first image sensor; when the camera module is in the second image distance range, light passes through the lens assembly, is reflected by the reflecting element, and then passes through the first lens to reach the second image sensor.
2. The camera module of claim 1, wherein, The maximum value of the first image distance range is equal to the minimum value of the second image distance range.
3. The camera module of claim 1, wherein, When the camera module is in the first image distance range, the driving assembly can drive the first image sensor to move between a first position close to the reflecting element and a second position away from the reflecting element; When the camera module is in the second image distance range, the driving assembly can drive the second image sensor and the first lens to move between the first position and the second position; The equivalent image distance of the camera module when the first image sensor is at the second position is equal to the equivalent image distance of the camera module when the second image sensor is at the first position.
4. The camera module of claim 1, wherein, The driving assembly comprises a first conveying member, and the first image sensor and the second image sensor are arranged in the conveying direction of the first conveying member.
5. The camera module of claim 1, wherein, The image acquisition assembly further comprises a second lens; the second lens is arranged corresponding to the first image sensor; when the camera module is in the first image distance range, light passes through the lens assembly, is reflected by the reflecting element, and then passes through the second lens to reach the first image sensor.
6. The camera module of claim 1, wherein, The driving assembly comprises a second conveying member and a third conveying member; The first image sensor is arranged on the second conveying member, and the second conveying member is used to drive the first image sensor to move; The second image sensor and the first lens are arranged on the third conveying member, and the third conveying member is used to drive the second image sensor and the first lens to move.
7. The camera module of claim 6, wherein, The number of the second image sensor is at least two, and the at least two second image sensors are arranged in the conveying direction of the third conveying member. 8.The camera module according to any one of claims 1 to 6, characterized in that, Further comprising: a housing provided with an opening and a containing cavity in communication with the opening; the lens assembly is arranged at the opening, and the reflecting element, the image acquisition assembly and the driving assembly are arranged in the containing cavity.
9. The camera module of claim 1, wherein, Further comprising a rotating member, the reflecting element is connected to the rotating member, and the rotating member is used to drive the reflecting element to rotate.
10. An electronic device, comprising: The camera module comprises any one of claims 1 to 9.
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