Electronic device and imaging module thereof

Abstract

The present application discloses an electronic device and an imaging module thereof, which belongs to the field of communication devices, and the imaging module includes a lens, a driving member and a photosensitive chip, the photosensitive chip is a Bayer array sensor, the photosensitive chip includes a plurality of pixel regions arranged in rows and columns, each pixel region includes four sub-pixel regions, the lens is connected to the driving member, and the driving member can drive the lens to switch between a first position and a second position with respect to the photosensitive chip, when the lens is in the first position, the light incident from the lens forms a first image in the first sub-pixel region of the photosensitive chip, and when the lens is in the second position, the light incident from the lens forms a second image in the second sub-pixel region of the photosensitive chip, the contents of the first image and the second image are the same, and equivalent sub-pixel regions in the same pixel region of the first sub-pixel region and the second sub-pixel region are any two sub-pixel regions in the pixel region.

Description

[Technical field]

[0001] (CROSS REFERENCE TO RELATED APPLICATIONS) The present invention claims priority to a Chinese patent application filed with the China Patent Office on December 31, 2020, bearing application number 202011641273.6 and entitled "Electronic device and imaging module thereof," the entire contents of which are incorporated herein by reference. The present application relates to the technical field of communication devices, and more particularly to an electronic device and its imaging module. [Background technology]

[0002] With the development of science and technology, electronic devices such as mobile phones play an important role in people's productive lives, and electronic devices are generally equipped with imaging modules for users to take pictures. As market competition becomes more and more intense, electronic devices generally have at least one outstanding performance to differentiate themselves from other electronic devices and strengthen the market competitiveness of the electronic devices. For example, the electronic device has a high refresh rate to provide high display performance, or the electronic device has dual speakers to enhance audiovisual effects, and further, for example, the electronic device has high shooting performance. As for the shooting performance of the electronic device, the performance of the imaging module can be improved by various approaches.

[0003] Take the image definition as an example, when the size of the photosensitive chip is constant, increasing the number of pixels will reduce the photosensitive performance of the imaging module, and will also have a negative impact on the imaging result, so the definition is generally improved by the methods of single frame interpolation and multi-frame synthesis. However, in the process of forming an image by the method of single frame interpolation, the number of actual photosensitive pixels is not increased, so the effect of improving the definition is limited, and it is easy to cause interpolation errors in some scenes. In the process of forming an image by the method of multi-frame synthesis, it is difficult to control the pixel shift, and the effect of the synthesized image is low. Summary of the Invention [Problem to be solved by the invention]

[0004] The present application discloses an electronic device and an imaging module thereof capable of improving image definition. [Means for solving the problem]

[0005] In order to solve the above problems, the embodiments of the present application are realized as follows.

[0006] In a first aspect, an embodiment of the present application discloses an imaging module, the imaging module comprising: a lens; a driving member; and a photosensitive chip; the photosensitive chip is a Bayer array sensor; the photosensitive chip includes a plurality of pixel regions arranged in rows and columns, each of the pixel regions includes four sub-pixel regions; the lens is connected to the driving member, the driving member being capable of driving the lens to switch between a first position and a second position relative to the photosensitive chip; When the lens is in a first position, light incident from the lens forms a first image in a first sub-pixel region of the photosensitive chip, and when the lens is in a second position, light incident from the lens forms a second image in a second sub-pixel region of the photosensitive chip, the contents of the first image and the second image are the same, and equivalent sub-pixel regions in the same pixel region of the first sub-pixel region and the second sub-pixel region are any two of the sub-pixel regions in the pixel region.

[0007] In a second aspect, an embodiment of the present application discloses an electronic device including the imaging module described above. Effect of the Invention

[0008] An embodiment of the present application provides an imaging module, in which a lens of the imaging module is engaged with a photosensitive chip, and the lens can be switched between a first position and a second position, so that when the position of the lens is changed, a first image and a second image can be formed in a first sub-pixel region and a second sub-pixel region of the photosensitive chip, respectively, and the contents of the first image and the second image are the same. In addition, the equivalent sub-pixel regions in the same pixel region of the first sub-pixel region and the second sub-pixel region are any two in the pixel region, so that the results of the filtering process of the incident light by the photosensitive chip in the two imaging processes are different; and the first image and the second image are synthesized according to a preset algorithm, so that the number of actual light-sensing pixels of each filter channel on the formed synthesized image can be increased, and the resolution of the image can be increased, so that the effect of the photo can be enhanced, and the image quality level and user experience of the final image can be improved.

[0009] The drawings described in this specification are intended to facilitate understanding of the present application and to constitute a part of the present application, and the exemplary embodiments and the description thereof are intended to interpret the present application and are not intended to unduly limit the present application. The description of the drawings is as set forth above. [Brief description of the drawings]

[0010] [Figure 1] 1 is a structural schematic diagram of an imaging module disclosed in an embodiment of the present application. [Diagram 2] 1 is an assembly diagram of a lens and a restricting member in an imaging module disclosed in an embodiment of the present application. [Diagram 3] 1A and 1B are schematic diagrams of a restricting member in an imaging module disclosed in an embodiment of the present application. [Figure 4] 2 is a structural schematic diagram of a pixel area of ​​a photosensitive chip in an imaging module disclosed in an embodiment of the present application. [Diagram 5] 10A and 10B are diagrams illustrating a comparison of relative positions between a pixel region in which a first sub-pixel region is located and a pixel region in which a second sub-pixel region is located in an imaging module disclosed in an embodiment of the present application. [Figure 6]11A and 11B are comparative diagrams showing another relative position between a pixel region in which a first sub-pixel region is located and a pixel region in which a second sub-pixel region is located in an imaging module disclosed in an embodiment of the present application. [Figure 7] 13 is a comparative diagram showing still another relative position between a pixel region in which a first sub-pixel region is located and a pixel region in which a second sub-pixel region is located in an imaging module disclosed in an embodiment of the present application. FIG. DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS

[0011] In order to make the objectives, technical solutions and advantages of the present application clearer, the technical solutions of the present application are described below in a clear and complete manner in conjunction with specific embodiments of the present application and corresponding drawings. Of course, the described embodiments are only a part of the embodiments of the present application, and are not all of the embodiments. Based on the embodiments in the present application, all other embodiments obtained by those skilled in the art without any creative effort belong to the protection scope of the present application.

[0012] The technical solutions disclosed in each embodiment of the present application will be described in detail below with reference to the drawings.

[0013] 1 to 3, the present application discloses an imaging module, which includes a lens 200, a driving member, and a photosensitive chip 400. The imaging module further includes a case 100, in which all of the above-mentioned components can be mounted, and the case 100 can be made of materials such as plastic or metal. Of course, the imaging module may further include other structures, but detailed descriptions thereof will be omitted here for the sake of brevity.

[0014] The photosensitive chip 400 is an imaging sensor, and the photosensitive chip 400 is a Bayer array sensor, that is, the photosensitive pixels in the photosensitive chip 400 are all arranged in a Bayer array. The photosensitive chip 400 includes a number of pixel regions arranged in rows and columns, each pixel region includes four sub-pixel regions, and the four sub-pixel regions are arranged in a 2×2 matrix. The four sub-pixel regions may include two green pixels, one blue pixel, and one red pixel, and the two green pixels are arranged diagonally. Here, the four sub-pixel regions in each pixel region may be a first sub-pixel region, a second sub-pixel region, a third sub-pixel region, and a fourth sub-pixel region, respectively.

[0015] Typically, the photosensitive chip 400 may include a filter array layer and a photosensitive layer, where light is transmitted through the filter array layer to illuminate the photosensitive layer, and the filter array layer can filter color, such that the light transmitted through the filter array layer retains only one color component, for example, red, blue or green.

[0016] As described above, the photosensitive chip 400 includes a plurality of pixel regions, each of which includes four sub-pixel regions; more specifically, each sub-pixel region is a part of the photosensitive chip 400; that is, each sub-pixel region may include a sub-filter layer and a sub-photosensitive layer, and the number of sub-pixel regions is plural; further, all the sub-filter layers jointly constitute a filter array layer, and all the sub-photosensitive layers jointly constitute a photosensitive layer.

[0017] In the filter array layer of the Bayer array sensor, four filters are provided in each pixel region, and the four filters correspond one-to-one to four sub-pixel regions in one pixel region, and the four filters generally include one red light filter, one blue light filter and two green light filters, and are abbreviated as RGGB. When the types of filters provided in different sub-pixel regions on the photosensitive layer are different, the colors of the images formed in the photosensitive layer corresponding to the different sub-pixel regions are also different.

[0018] In the imaging module provided in the embodiments of the present application, the lens 200 is connected to a driving member, and the driving member can drive the lens 200 to move relative to the photosensitive chip 400, and the photosensitive chip 400 can be held fixed and only the lens 200 can be controlled to move, thereby improving the accuracy of control and reducing the difficulty of control.

[0019] Specifically, the photosensitive chip 400 may be fixedly connected to the case 100, and the lens 200 may form a movable connection relationship with the case 100 via a driving member. The photosensitive chip 400 may be fixed to the case 100 by a method such as adhesion, the driving member may be a micro linear motor, etc., and the driving member may be mounted on the case 100 by a connecting member such as a screw, and the lens 200 is connected to a driving head of the driving member, so that the driving member can drive the lens 200 to move relative to the case 100, that is, the lens 200 and the photosensitive chip 400 are made to move relative to each other.

[0020] More specifically, the driving member can drive the lens 200 to switch between a first position and a second position relative to the photosensitive chip 400, and in the above case, by adjusting the position of the lens 200, the relative position between the lens 200 and the photosensitive chip 400 can be changed, and further, light incident from the same position on the lens 200 can be projected to different positions on the photosensitive chip 400 to form images with the same content at different positions on the photosensitive chip 400.

[0021] When the lens 200 is in a first position, the light incident through the lens 200 forms a first image in a first sub-pixel region of the photosensitive chip 400, and when the lens 200 is in a second position, the light incident through the lens 200 forms a second image in a second sub-pixel region of the photosensitive chip 400.

[0022] It should be noted that after one of the first and second images is formed, the driving member operates to drive the lens 200 to change its position, and only then is the other image formed. Since the lens 200 shifts a certain amount relative to the framing area during the two imaging processes, there is a slight difference between the two images formed one after the other. However, the edge position of the image formed on the photosensitive chip 400 is generally not shown in the finished product photo, and the shift amount of the lens 200 is extremely small, so that when the imaging module is held fixed as a whole, it is believed that the contents of the images formed in the two imaging processes before and after are substantially consistent, and furthermore, it is guaranteed that the contents of the first image and the second image formed in one sub-pixel area of ​​the photosensitive chip 400 are the same.

[0023] In the process of forming the first image and the second image, the relative positions of the lens 200 and the photosensitive chip 400 change, so the position where the light is projected onto the photosensitive chip 400 through the lens 200 can also change, that is, the first image is formed within the first sub-pixel region of the photosensitive chip 400, and the second image is formed within the second sub-pixel region of the photosensitive chip 400.

[0024] When the shift amount of the lens 200 is different, the interval between the first sub-pixel region and the second sub-pixel region is also different, so that the first sub-pixel region and the second sub-pixel region may not be located in the same pixel region. However, even if the first sub-pixel region and the second sub-pixel region are located in two pixel regions, respectively, because the first sub-pixel region and the second sub-pixel region are both associated with a filter and the structures of the pixel regions on the photosensitive chip 400 are all the same, the pixel region where the first sub-pixel region is located necessarily includes one sub-pixel region with the same filter as the filter corresponding to the second sub-pixel region, and accordingly, the pixel region where the second sub-pixel region is located necessarily includes one sub-pixel region with the same filter as the filter corresponding to the first sub-pixel region, so that the first sub-pixel region can be equivalent to one other sub-pixel region in the pixel region where the second sub-pixel region is located. The equivalent subpixel regions in the same pixel region of a first subpixel region and a second subpixel region are any two subpixel regions within the pixel region, i.e., when the first subpixel region is equivalent to the pixel region in which the second subpixel region is located, the equivalent of the first subpixel region is not necessarily the second subpixel region, and correspondingly, when the second subpixel region is equivalent to the pixel region in which the first subpixel region is located, the equivalent of the second subpixel region is not necessarily the first subpixel region.

[0025] When adopting the above technical solution, take the light beam incident from the center of the lens 200 as an example, the light beam passes through the lens 200 and is projected onto the photosensitive chip 400 to form a first image, and then the lens 200 is driven to move, so that the light beam incident from the center of the lens 200 is again projected onto the photosensitive chip 400 to form a second image.

[0026] By designing the shift amount and shift direction of the lens 200, the light beam can be projected onto a first sub-pixel region corresponding to a red filter on the photosensitive chip 400 through the lens 200 at a first position, and the light beam can be projected onto a second sub-pixel region corresponding to a green filter on the photosensitive chip 400 through the lens 200 at a second position. Alternatively, the light beam can be first projected onto a first sub-pixel region corresponding to a blue filter on the photosensitive chip 400, and the light beam can be further projected onto a second sub-pixel region corresponding to a green filter on the photosensitive chip 400. Alternatively, the light beam can be first projected onto a first sub-pixel region corresponding to a first green filter on the photosensitive chip 400, and the light beam can be further projected onto a second sub-pixel region corresponding to a second green filter on the photosensitive chip 400. Here, the first green filter is adjacent to the bottom with a red filter and to the right with a blue filter, and the second green filter is adjacent to the top with a red filter and to the left with a blue filter, i.e., the first green filter and the second green filter are located in different positions within one pixel area.

[0027] As described above, the result of filtering the light beam by the filter corresponding to the first sub-pixel region of the photosensitive chip 400 is different from the result of filtering the light beam by the filter corresponding to the second sub-pixel region of the photosensitive chip 400. As a result, similar light can be processed by two types of filters respectively, and two images with the same content but different colors are formed. By synthesizing the first and second images according to a preset algorithm, the number of actual light-sensing pixels of each filter channel in the synthesized image can be increased, and the image resolution can be further improved, thereby enhancing the photographic effect and improving the image quality level and user experience of the final image.

[0028] As described above, the purpose that the first and second images formed have the same contents but different colors can be achieved by designing the shift amount and shift direction of the lens 200. More specifically, the shift amount of the lens 200 can be the side length of the sub-pixel region and the shift direction of the lens 200 can be the extension direction of the edge of the sub-pixel region, or the shift amount of the lens 200 can be the sum of the side length of the sub-pixel region and the side lengths of n pixel regions, where n is an integer and n≧0.

[0029] For example, the lens 200 may shift the side length of one sub-pixel region to the left in a plane perpendicular to its optical axis, or the lens 200 may shift the side length of one sub-pixel region downward in a plane perpendicular to its optical axis, or the lens 200 may shift the side length of one sub-pixel region to the lower left in a plane perpendicular to its optical axis, or the lens 200 may shift the side length of one sub-pixel region to the lower left in a plane perpendicular to its optical axis by an amount equal to the size of the diagonal of one sub-pixel region, and this specification is not limited thereto. Furthermore, when the movement direction of the lens 200 is different, the types of filters corresponding to the first sub-pixel region and the second sub-pixel region are also different.

[0030] More intuitively, as shown in FIG. 4, FIG. 4 shows the distribution of four sub-pixel regions in each pixel region on the photosensitive chip 400, which are a first sub-pixel region 401, a second sub-pixel region 402, a third sub-pixel region 403 and a fourth sub-pixel region 404, respectively, where the first sub-pixel region 401 may be directed toward the center of the lens 200 at a first position, that is, when the lens 200 is at a first position, the light incident from the center of the lens 200 can be projected into the first sub-pixel region 401. Accordingly, when the position of the lens 200 changes, the corresponding relationship between the lens 200 and the photosensitive chip 400 also changes, specifically, after the lens 200 moves to a second position, it may be the second sub-pixel region 402′ that faces toward the center of the lens 200, that is, when the lens 200 is at a second position, the light incident from the center of the lens 200 can be projected into the second sub-pixel region 402′. Here, the second sub-pixel region 402' and the second sub-pixel region 402 may correspond to the same type of filter, but they may be located within two pixel regions, respectively, and the pixel region in which the second sub-pixel region 402' is located further includes the first sub-pixel region 401', the third sub-pixel region 403' and the fourth sub-pixel region 404'.

[0031] In the process of driving and moving lens 200, a shift amount of the side length of one sub-pixel region to the left or downward in a plane perpendicular to the optical axis of lens 200 is generated, or a shift amount of the diagonal length of one sub-pixel region to the lower left is generated, so that the relative positions of the pixel region in which first sub-pixel region 401 is located and the pixel region in which second sub-pixel region 402' is located can be made to correspond to Figures 5 to 7, respectively.

[0032] An embodiment of the present application provides an imaging module, in which a lens of the imaging module is engaged with a photosensitive chip, and the lens can be switched between a first position and a second position, so that when the position of the lens is changed, a first image and a second image can be formed in a first sub-pixel region and a second sub-pixel region of the photosensitive chip, respectively, and the contents of the first image and the second image are the same. And the equivalent sub-pixel regions in the same pixel region of the first sub-pixel region and the second sub-pixel region are any two in the pixel region, so that the results of the filtering process of the incident light by the photosensitive chip in the two imaging processes are different; and further, the first image and the second image are synthesized according to a preset algorithm, so that the number of actual light-sensing pixels of each filter channel on the formed synthesized image can be increased, and the resolution of the image can be increased, so that the effect of the photo can be enhanced, and the image quality level and user experience of the final image can be improved.

[0033] Optionally, in the imaging module provided in the embodiment of the present application, the driving member can also drive the lens 200 to move to a third position, that is, the driving member can drive the lens 200 to switch between a first position, a second position, and a third position relative to the photosensitive chip 400, specifically, the number of the driving members can be multiple, or the driving member can provide a multi-directional driving force. When the lens 200 is in the third position, the light incident from the lens 200 forms a third image in a third sub-pixel region of the photosensitive chip 400, and the content of the third image is the same as that of the first sub-pixel region, the second sub-pixel region, and the third sub-pixel region in the same pixel region are any three sub-pixel regions in the pixel region.

[0034] The above technical solution can further increase the number of forms of the result of filtering the same light, and after the first image, the second image, and the third image are synthesized according to a preset algorithm, the number of light-sensitive pixels of each filter channel on the synthesized image can be further increased, so as to further improve the resolution of the image. Specifically, the moving direction of the lens 200 can be controlled to change the relative positional relationship between the photosensitive chip 400 and the lens 200, and further change the sub-pixel area corresponding to the light incident from the lens 200, that is, the type of filter through which the light incident from the lens 200 passes can be changed, so as to achieve the purpose of increasing the result of filtering the same light. Optionally, the first sub-pixel area, the second sub-pixel area, and the third sub-pixel area can correspond to a green filter, a red filter, and a blue filter, respectively, so that the resolution of the light-sensitive pixels corresponding to RGB in the image can all be improved, and the effect of the formed image can be improved.

[0035] Furthermore, in the imaging module provided in the embodiment of the present application, the driving member can also drive the lens 200 to move to a fourth position, that is, the driving member can drive the lens 200 to switch between a first position, a second position, a third position and a fourth position relative to the photosensitive chip 400. When the lens 200 is in the fourth position, the light incident from the lens 200 forms a fourth image in a fourth sub-pixel region of the photosensitive chip 400, the contents of the fourth image and the first image are the same, and the equivalent sub-pixel regions in the same pixel region of the first sub-pixel region, the second sub-pixel region, the third sub-pixel region and the fourth sub-pixel region are four sub-pixel regions in the pixel region.

[0036] The above technical solution can further increase the number of forms of the result of filtering the same light, and after the first image, the second image, the third image, and the fourth image are synthesized according to a preset algorithm, the number of light-sensing pixels of each filter channel on the synthesized image can be further increased, so that the image resolution can be further improved. When the above technical solution is adopted, the resolution of the R and B images is improved by three times, and the resolution of the G image is improved by one time, compared with the solution in which the light is directly incident on the photosensitive chip, so that the clarity of the image is greatly improved.

[0037] In the process of the driving member driving the lens 200 to move, the driving amount of the driving member can be accurately controlled to ensure that the lens 200 can move with a preset shift amount when moving, and the preset shift amount can be the side length of one sub-pixel area. In order to reduce the difficulty of controlling the imaging module, in another embodiment of the present application, optionally, the imaging module further includes a regulating member 600, and the lens is movably engaged with the photosensitive chip through the regulating member.

[0038] The regulating member 600 includes a regulating seat 601 and a connecting portion 602, and the regulating seat 601 and the connecting portion 602 are movably connected. The lens 200 and the driving head of the driving member may both be connected to the regulating seat 601, or both may be connected to the connecting portion 602, thereby controlling the shift amount of the lens 200 according to the regulating engagement relationship between the regulating seat 601 and the connecting portion 602; for example, the regulating seat 601 may be fixed to the case 100, and the lens 200 and the driving head of the driving member are both connected to the connecting portion 602.

[0039] The restriction seat 601 has a first restriction groove, a second restriction groove, a third restriction groove and a fourth restriction groove, and the first restriction groove, the second restriction groove, the third restriction groove and the fourth restriction groove are connected to each other to form a movement space 603, so that the connection part 602 can move within the movement space and be restricted by the above four respectively.

[0040] Furthermore, when the connection portion 602 is restricted within the first restriction groove, the lens 200 is in the first position, when the connection portion 602 is restricted within the second restriction groove, the lens 200 is in the second position, when the connection portion 602 is restricted within the third restriction groove, the lens 200 is in the third position, and when the connection portion 602 is restricted within the fourth restriction groove, the lens 200 is in the fourth position.

[0041] Generally, by adopting the above technical solution, the shift amount of the lens 200 can be limited by the regulating member 600; when it is necessary to move the lens, the driving member can drive the connecting member to move to the corresponding position, and the regulating seat 601 can provide a reliable regulating effect, so that when the connecting member cannot move in the corresponding direction, it is determined that the lens has been driven to the target position, and the difficulty of the driving member to control its own driving amount is reduced.

[0042] Specifically, the specific size and structure of the first restriction groove, the second restriction groove, the third restriction groove, and the fourth restriction groove can be determined according to the size and shape of the connection part, etc. Optionally, the first restriction groove, the second restriction groove, the third restriction groove, and the fourth restriction groove can all be square structural members, and the size is the same as the size of one sub-pixel region. Accordingly, the connection part can also be a columnar structure with a square bottom so as to normally restrict the connection part.

[0043] Alternatively, the four can be connected to each other to form a square structure, i.e., the four correspond to four sub-pixel areas in the pixel area, respectively, and are distributed in 2×2, in which case, when the connecting portions 602 are engaged with the four, the lens 200 can be positioned at a first position, a second position, a third position and a fourth position, respectively, thereby forming a first image, a second image, a third image and a fourth image on the photosensitive chip 400, respectively.

[0044] In another embodiment of the present application, the second regulating groove and the third regulating groove are connected, the first regulating groove is located on one side of the distribution direction of the second regulating groove and the third regulating groove, and the fourth regulating groove is located on the other side of the distribution direction, and the first regulating groove is connected to the second regulating groove, and the fourth regulating groove is connected to the third regulating groove. In other words, the second regulating groove is connected to the right side of the first regulating groove, and the third regulating groove is connected below the second regulating groove, and the fourth regulating groove is connected to the right side of the third regulating groove, forming a structure similar to a "Z" shape.

[0045] When the above technical solution is adopted, as long as the connecting part 602 moves between any two adjacent ones of the above four, the connecting part 602 can be restricted in a certain direction by the restricting seat 601, and by incorporating the driving force provided by the driving member, the movement direction of the connecting part 602 can be made unique, which further reduces the difficulty of driving and improves the accuracy of movement.

[0046] As described above, the size of the first restriction groove etc. in the restriction seat can be determined according to the parameters such as the structure and size of the connection part, and optionally, the size of the connection part is equal to the size of the sub-pixel region in both the distribution direction of the first restriction groove and the second restriction groove and the distribution direction of the second restriction groove and the third restriction groove, in this case, the shape and size of the bottom surface of the first restriction groove, the second restriction groove, the third restriction groove and the fourth restriction groove can be equal to the shape and size of the sub-pixel region, respectively, so that the design and processing difficulty of the first restriction groove etc. is relatively low, and a reliable restriction relationship between the connection part and each restriction groove is guaranteed. Specifically, the connection part can be a columnar structural member with a square bottom surface, and in another embodiment of the present application, the connection part 602 can be a cylindrical structural member, in this case, the contact area between the connection part 602 and the restriction seat 601 is small, thereby reducing the difficulty of the relative movement between the two and reducing the difficulty of driving.

[0047] The optical axis of the lens is perpendicular to the photosensitive surface of the photosensitive chip 400, that is, the photosensitive chip faces the lens. In this case, the design and implementation of the lens and the photosensitive chip are relatively easy, and the amount of light exposed by the photosensitive chip 400 can be improved, and the imaging effect can be improved. Of course, if there is a corresponding need, the photosensitive chip 400 does not need to face the lens 200, for example, the imaging module can be a periscope module, so that the zoom magnification of the imaging module can be improved.

[0048] Optionally, the imaging module provided in the embodiment of the present application further includes an infrared filter 500, which is disposed on the light exit side of the lens, i.e., on the light entrance side of the photosensitive chip 400. The infrared filter 500 can provide a light filtering effect to the light incident into the imaging module through the lens 200, thereby filtering out unnecessary light projected into the photosensitive chip 400, preventing false color and / or moire from occurring in the photosensitive chip 400, and improving the effective resolution and color reproducibility of the photosensitive chip 400.

[0049] Optionally, the lens 200 is an extended depth of field lens, and the passing foci of the three filter channels R, G, B of the lens 200 are designed to be at different positions, and the three passing foci cover three focal zones, thereby increasing the longitudinal chromatic aberration of the three bands R, G, B, and achieving the purpose of covering three distances, namely, far, middle, and near, where the three distances, far, middle, and near, are relative concepts, that is, the far distance refers to a position farther than the middle distance, and the close distance refers to a position closer to the middle distance.

[0050] By adopting the above technical solution in the lens 200, three pictures can be taken, which correspond to R, G and B channels, respectively, and the three pictures are focused on the above three distances, namely, far, middle and near, respectively. Then, based on the restoration algorithm, a window detection function is used to detect the entire field of view, and the sharpest one of the three pictures corresponding to R, G and B in each window is identified, and then, based on the sharpest picture, the other two pictures are transformed in sharpness by a deconvolution algorithm to synthesize a picture with relatively high sharpness over the entire distance.

[0051] Based on the imaging module disclosed in any of the above embodiments, an embodiment of the present application further provides an electronic device, which includes the imaging module provided in any of the above embodiments, and of course, the electronic device also includes other components such as a display module, a case, and a battery, but for the sake of brevity, they will not be described one by one here.

[0052] The electronic device disclosed in the embodiments of the present application may be a smartphone, a tablet computer, an e-book reader, or a wearable device. Of course, the electronic device may be other devices, and the embodiments of the present application are not limited thereto.

[0053] The above embodiments of the present application have been described with a focus on the differences between each embodiment, and different optimization features between each embodiment may be combined to form a more preferred embodiment, unless inconsistent, and detailed descriptions thereof will be omitted herein for the sake of brevity.

[0054] The above is merely an embodiment of the present application, and is not intended to limit the present application. Those skilled in the art may make various modifications and variations to the present application. Any modifications, equivalent replacements, improvements, etc. made within the spirit and principle of the present application shall be included in the scope of the claims of the present application. [Explanation of symbols]

[0055] 100: Case, 200: Lens, 400: photosensitive chip, 401: first sub-pixel region, 402: second sub-pixel region, 403: third sub-pixel region, 404: fourth sub-pixel region, 401': first sub-pixel region, 402': second sub-pixel region, 403': third sub-pixel region, 404': fourth sub-pixel region, 500: Infrared filter, 600: regulating member, 601: regulating seat, 602: connecting portion, 603: movement space.

Claims

1. The present invention includes a lens, a driving member, a photosensitive chip, and a regulating member, the photosensitive chip being a Bayer array sensor, the photosensitive chip including a plurality of pixel regions arranged in rows and columns, each of the pixel regions including four sub-pixel regions; The lens is connected to the driving member, and the lens is movably engaged with the photosensitive chip via the regulating member, the regulating member includes a regulating seat and a connecting portion, and the regulating seat or the connecting portion is connected to the driving member; the restriction seat is provided with a first restriction groove, a second restriction groove, a third restriction groove and a fourth restriction groove which are connected to each other, the second restriction groove and the third restriction groove are connected to each other, the first restriction groove is located on one side of a distribution direction of the second restriction groove and the third restriction groove, the fourth restriction groove is located on the other side of the distribution direction, and the first restriction groove is connected to the second restriction groove and the fourth restriction groove is connected to the third restriction groove; the driving member can drive the lens to switch among a first position, a second position, a third position and a fourth position with respect to the photosensitive chip; When the connection portion is in the first restriction groove, the lens is at the first position, and light incident from the lens forms a first image in a first sub-pixel region of the photosensitive chip; when the connection portion is in the second restriction groove, the lens is at the second position, and light incident from the lens forms a second image in a second sub-pixel region of the photosensitive chip; when the connection portion is in the third restriction groove, the lens is at the third position, and light incident from the lens forms a third image in a third sub-pixel region of the photosensitive chip; and when the connection portion is in the fourth restriction groove, the lens is at the fourth position, and light incident from the lens forms a fourth image in a fourth sub-pixel region of the photosensitive chip. an imaging module, wherein the contents of the first image, the second image, the third image, and the fourth image are the same, and equivalent sub-pixel regions in the same pixel region, that is, the first sub-pixel region, the second sub-pixel region, the third sub-pixel region, and the fourth sub-pixel region, are four of the sub-pixel regions within the pixel region.

2. a size of the connection portion is equal to a side length of the sub-pixel region in both a distribution direction of the first restriction groove and the second restriction groove and a distribution direction of the second restriction groove and the third restriction groove, The imaging module according to claim 1 , wherein the connection portion is a cylindrical structural member.

3. The imaging module according to claim 1 , further comprising an infrared filter provided on a light exit side of the lens.

4. The imaging module of claim 1 , wherein the lens is an extended depth of field lens.

5. An electronic device comprising the imaging module according to claim 1 .

Images