Electronic device and its imaging module

Abstract

The present application discloses an electronic device and an imaging module thereof, the imaging module including a photosensitive chip, a first lens, a second lens, and a plurality of reflective members, the photosensitive chip being a Bayer array sensor, the photosensitive chip including a plurality of pixel regions arranged in a matrix, each pixel region including four sub-pixel regions, the fields of view of the first lens and the second lens being the same, the first lens and the second lens being combined with the photosensitive chip via a plurality of reflective members, a light ray incident from the first lens forming a first image by the first sub-pixel region of the photosensitive chip, and a light ray incident from the second lens forming a second image by the second sub-pixel region of the photosensitive chip, the contents of the first image and the second image being the same, and an equivalent sub-pixel region in a pixel region where the first sub-pixel region and the second sub-pixel region are the same is any two of the sub-pixel regions of this pixel region.

Description

Technical Field

[0001] (Cross - reference to related applications) This invention claims the priority of a Chinese patent application with an application number of 202011639286.X and an invention title of "Electronic Device and Its Imaging Module", which was filed with the Chinese Patent Office on December 31, 2020. All the contents of this application are incorporated into this invention by reference. This application belongs to the technical field of communication devices, and specifically relates to electronic devices and their imaging modules.

Background Art

[0002] With the progress of science and technology, electronic devices such as mobile phones play an important role in people's production and life. Generally, an imaging module is disposed in an electronic device to facilitate the shooting operation by users. As market competition becomes increasingly fierce, electronic devices generally have at least one more prominent performance to form a difference from other electronic devices and improve the market competitiveness of the electronic devices. For example, an electronic device has a higher refresh rate to endow it with high display performance, or an electronic device has dual speakers with high viewing and listening effects. Further, for example, the shooting performance of an electronic device is higher. Here, with respect to the shooting performance of an electronic device, the performance of the imaging module can be improved by various means.

[0003] Taking imaging fineness as an example, when the size of the photosensitive chip is fixed, an increase in the number of pixels causes a decrease in the photosensitive ability of the imaging module and also has an adverse effect on the imaging result. Therefore, in the industry, generally, the methods of single - frame interpolation and multi - frame synthesis are adopted to improve the fineness. However, in the process of forming an image by adopting the single - frame interpolation method, since the true photosensitive pixels do not increase, the effect of improving the fineness is limited, and in a certain scenario, the situation of interpolation error is also likely to occur. In the process of forming an image by adopting the multi - frame synthesis method, the difficulty of controlling pixel displacement is very high, and the image effect of the synthesis is also poor.

Summary of the Invention

Problems to be Solved by the Invention

[0004] This application discloses an electronic device and its imaging module that can improve imaging resolution.

Means for Solving the Problems

[0005] To solve the above problems, the embodiments of this application are realized as follows.

[0006] According to a first aspect, the embodiments of this application disclose an imaging module, including a photosensitive chip, a first lens, a second lens, and a plurality of reflecting members. The photosensitive chip is a Bayer array sensor, and the photosensitive chip includes a plurality of pixel regions arranged in a matrix. Each of the pixel regions includes four sub-pixel regions. The fields of view of the first lens and the second lens are the same. The first lens and the second lens are both combined with the photosensitive chip through a plurality of the reflecting members. The light rays incident from the first lens form a first image by the first sub-pixel region of the photosensitive chip, and the light rays incident from the second lens form a second image by the second sub-pixel region of the photosensitive chip. The contents of the first image and the second image are the same. The equivalent sub-pixel regions of the first sub-pixel region and the second sub-pixel region within the same pixel region are any two of the sub-pixel regions of this pixel region.

[0007] According to a second aspect, the embodiments of this application disclose an electronic device including the above imaging module.

Advantages of the Invention

[0008] Embodiments of the present application provide an imaging module. The first lens and the second lens are combined with a photosensitive chip via a reflecting member. When the photosensitive chip is combined with different lenses, a first image can be formed by a first sub-pixel region of the photosensitive chip, and a second image identical to the content of the first image can be formed by a second sub-pixel region of the photosensitive chip. Moreover, the equivalent sub-pixel regions of the first sub-pixel region and the second sub-pixel region within the same pixel region are any two of the pixel regions. Thereby, in two imaging processes, the filtering processing results of the photosensitive chip for the same incident light ray are different. Further, the first image and the second image are synthesized using a preset algorithm, and the true photosensitive pixels of each filter channel in the formed composite image can be increased, thereby further improving the resolution of the image, making the photographic expression effect better, and improving the image quality level and user experience of the final image.

[0009] The drawings described herein are used to provide a further understanding of the present application, constitute a part of the present application, and the exemplary embodiments and descriptions thereof of the present application are for explaining the present application and do not constitute an improper limitation to the present application. In the drawings,

Brief Description of the Drawings

[0010]

Figure 1

Figure 2

Figure 3

Figure 4

Figure 5

Figure 6

Figure 7

Figure 8

Mode for Carrying Out the Invention

[0011] To make the objectives, technical solutions and advantages of the present application clearer, the following will clearly and completely describe the technical solutions of the present application in conjunction with specific embodiments of the present application and corresponding drawings. Obviously, the described embodiments are only some embodiments of the present application, not all embodiments. Based on the embodiments in the present application, all other embodiments obtained by those skilled in the art without creative efforts fall within the protection scope of the present application.

[0012] The following will detail the technical solutions disclosed by each embodiment of the present application in conjunction with the accompanying drawings.

[0013] As shown in FIGS. 1-4, the present application discloses an imaging module, which includes a photosensitive chip 400, a first lens 210, a second lens 220, and a plurality of reflecting members. Of course, the imaging module may further include other structures such as a housing 100, but for the sake of brevity of the text, it will not be described further here.

[0014] Here, the photosensitive chip 400 is an image 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 the Bayer array format. The photosensitive chip 400 includes a plurality of pixel regions arranged in a matrix. 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 the first sub-pixel region, the second sub-pixel region, the third sub-pixel region, and the fourth sub-pixel region, respectively.

[0015] Generally, the photosensitive chip 400 may include a filter array layer and a photosensitive layer. Light rays pass through the filter array layer and irradiate onto the photosensitive layer. The filter array layer can filter light rays of different colors, and it can retain only light rays of some colors (such as red, blue, or green) in the light rays passing through the filter array layer.

[0016] As described above, the photosensitive chip 400 includes a plurality of pixel regions, and each pixel region includes four sub-pixel regions. 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. The number of sub-pixel regions is plural. Furthermore, all the sub-filter layers together constitute the filter array layer, and all the sub-photosensitive layers together constitute the photosensitive layer.

[0017] Four filters are installed in the part corresponding to each pixel region in the filter array layer of the Bayer array sensor. The four filters correspond one-to-one with the 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, which are abbreviated as RGGB. When the types of filters installed in different sub-pixel regions on the photosensitive layer are different, the wavelength bands corresponding to the image information collected in the regions corresponding to different sub-pixel regions of the photosensitive layer are also different.

[0018] The first lens 210 and the second lens 220 can be attached to the housing 100 of the imaging module in various ways. Optionally, the first lens 210 and the second lens 220 may be fixedly connected to the housing 100 or may be movably connected to the housing 100. The fields of view of the first lens 210 and the second lens 220 are the same, that is, light rays corresponding to the same position may be incident from the first lens 210 or may be incident from the corresponding position on the second lens 220. Specifically, by designing parameters such as the structures and orientations of the first lens 210 and the second lens 220, the fields of view of the first lens 210 and the second lens 220 can be made the same.

[0019] More specifically, the structures of the first lens 210 and the second lens 220 are the same, and both can provide a light distribution effect on light rays. The number of lenses in the first lens 210 and the second lens 220 may be determined according to the actual situation. Optionally, both the first lens 210 and the second lens 220 include lenses arranged at intervals, the axes of the plurality of lenses overlap, and the plurality of lenses may include at least one convex lens and at least one concave lens, thereby improving the light distribution effect of the first lens 210 and the second lens 220.

[0020] The reflecting member has a reflecting function, that is, the light rays emitted to the reflecting member can be reflected by the reflecting member and continuously propagated along the reflecting direction. Specifically, the reflecting member may employ a material such as glass or plastic coated with an opaque material on one side. The deployment method of the reflecting member may be determined according to the actual situation such as the number of reflecting members. By combining the first lens and the second lens with the reflecting member, it can be ensured that the light rays incident on the imaging module from the first lens and the second lens can be emitted to the photosensitive chip 400. Of course, the photosensitive chip 400 can only receive the light rays incident from only one of the first lens and the second lens at the same time.

[0021] Both the first lens 210 and the second lens 220 are combined with the photosensitive chip 400 via a plurality of reflecting members. Optionally, the number of reflecting members may specifically be two, three or more. When the number of reflecting members is two, the photosensitive chip 400 can be installed facing the first lens 210. The second lens 220 is installed on one side of the first lens 210. One of the two reflecting members may be fixed to the housing 100 of the imaging module by means such as adhesion. And this reflecting member is inclined towards the second lens 220. The other reflecting member is rotatably connected to the housing 100 of the imaging module by a rotating member such as a rotating shaft. And this reflecting member is inclined towards the photosensitive chip. When the two reflecting members are combined with each other, the light rays incident from the second lens 220 can be reflected to the photosensitive chip 400 through the two reflecting members. Also, by avoiding the photosensitive chip in a way of rotating or moving the reflecting member facing the photosensitive chip, so that there is no shielding between the first lens 210 and the photosensitive chip 400, the light rays incident from the first lens can be incident on the photosensitive chip.

[0022] In this application, the light rays incident from the first lens 210 form a first image by the first sub-pixel region of the photosensitive chip 400, and the light rays incident from the second lens 220 form a second image by the second sub-pixel region of the photosensitive chip 400. The contents of the first image and the second image are the same. The equivalent sub-pixel regions of the first sub-pixel region and the second sub-pixel region within the same pixel region are any two sub-pixel regions of this pixel region.

[0023] As described above, since the fields of view of the first lens and the second lens are the same, the content of the images formed by the light rays incident from the same position on the first lens and the second lens is the same. Furthermore, by designing the relative positions between both the first lens and the second lens and the photosensitive chip, the position where the light rays incident on the photosensitive chip through the first lens are projected onto the photosensitive chip is different from the position where the light rays incident on the photosensitive chip through the second lens are projected onto the photosensitive chip. Thereby, when the light rays emitted from the same scenario enter the photosensitive chip through the first lens and the second lens respectively, the projection positions of the light rays are different, that is, they are projected onto the first sub-pixel region and the second sub-pixel region respectively. When the relative positional relationships between the first lens 210 and the second lens 220 and the photosensitive chip are different, the relative positions of the first sub-pixel region and the second sub-pixel region are also different. Moreover, when the difference in the relative positions between the first lens 210 and the second lens 220 and the photosensitive chip is large, the first sub-pixel region and the second sub-pixel region may be located in two pixel regions respectively.

[0024] However, both the first sub-pixel region and the second sub-pixel region correspond to filters, and the structures of the multiple pixel regions on the photosensitive chip 400 are all the same. Therefore, the pixel region where the first sub-pixel region is located necessarily includes a sub-pixel region where the type of filter corresponding to the second sub-pixel region is the same. Correspondingly, the pixel region where the second sub-pixel region is located also necessarily includes a sub-pixel region where the type of filter corresponding to the first sub-pixel region is the same. Therefore, the first sub-pixel region can be made equivalent to the other sub-pixel regions in the pixel region where the second sub-pixel region is located.

[0025] Moreover, since the equivalent sub-pixel regions of the first sub-pixel region and the second sub-pixel region within the same pixel region are any two sub-pixel regions within this pixel region, when making the first sub-pixel region equivalent to the pixel region where the second sub-pixel region is located, the equivalent of the first sub-pixel region is necessarily not the second sub-pixel region. Correspondingly, when making the second sub-pixel region equivalent to the pixel region where the first sub-pixel region is located, the equivalent of the second sub-pixel region is necessarily not the first sub-pixel region.

[0026] When adopting the above technical solution, the light beam incident from the center of the first lens 210 can be directed towards the first sub-pixel region corresponding to the red filter in the photosensitive chip 400, and the light beam incident from the center of the second lens 220 can be directed towards the second sub-pixel region corresponding to the green filter in the photosensitive chip 400. Or, the light beam incident from the center of the first lens 210 can be directed towards the first sub-pixel region corresponding to the blue filter in the photosensitive chip 400, and the light beam incident from the center of the second lens 220 can be directed towards the second sub-pixel region corresponding to the green filter in the photosensitive chip 400. Further, the light beam incident from the center of the first lens 210 can be directed towards the first sub-pixel region corresponding to the first green filter in the photosensitive chip 400, and the light beam incident from the center of the second lens 220 can be directed towards the second sub-pixel region corresponding to the second green filter in the photosensitive chip 400. Here, adjacent to the lower side of the first green filter is the red filter, adjacent to the right side is the blue filter, adjacent to the upper side of the second green filter is the blue filter, and adjacent to the left side is the red filter, that is, the positions of the first green filter and the second green filter in one pixel region are different.

[0027] To summarize the above, the filtering result of the filter corresponding to the first sub-pixel region in the photosensitive chip 400 for the light beam is different from the filtering result of the filter corresponding to the second sub-pixel region in the photosensitive chip 400 for the light beam. Thus, the same light ray can be processed by two filters respectively, and two images with the same content but different colors can be formed. Based on the first image and the second image formed by the photosensitive chip 400, they are synthesized by a preset algorithm, and the true photosensitive pixels of each filter channel in the formed synthesized image can be increased, further improving the resolution of the image, making the expression effect of the photo better, and improving the image quality level and user experience of the final image.

[0028] As described above, the relative position between the first sub-pixel region and the second sub-pixel region can be determined based on the relative positions between the first lens and the second lens and the photosensitive chip. Optionally, by designing the positions of the first lens and the second lens with respect to the photosensitive chip, the purpose of making the contents of the first image and the second image the same and the colors different can be achieved. More specifically, the side length of one sub-pixel region may be made different between the opposing arrangement positions of the first lens and the second lens and the photosensitive chip, or the sum of the side length of one sub-pixel region and the side lengths of n pixel regions may be made different, where n is an integer and n≥0.

[0029] Also, regarding the direction of misalignment between the first lens 210 and the second lens 220, it may be determined according to the actual situation. For example, the first lens 210 may be shifted to the left relative to the second lens 220 by a size equal to the side length of the sub-pixel region, or the first lens 210 may be shifted downward relative to the second lens 220 by a size equal to the side length of the sub-pixel region, or the first lens 210 may be shifted diagonally downward relative to the second lens 220 by a size equal to the length of the diagonal of the sub-pixel region. Moreover, when the misalignment directions of the first lens 210 and the second lens 220 are different, the types of filters corresponding to the first sub-pixel region for forming the first image and the second sub-pixel region for forming the second image are also different.

[0030] More intuitively, as shown in FIG. 5, FIG. 5 shows the distribution of the four sub-pixel regions within each pixel region on the photosensitive chip, which are the first sub-pixel region 401, the second sub-pixel region 402, the third sub-pixel region 403, and the fourth sub-pixel region 404, respectively. Here, the first sub-pixel region 401 can be directed towards the center of the first lens, that is, the light rays incident from the center of the first lens can be projected into the first sub-pixel region 401. Correspondingly, the second sub-pixel region 402' can be directed towards the center of the second lens, that is, the light rays incident from the center of the second lens can be projected into the second sub-pixel region 402'. Of course, the directions do not necessarily face each other in the physical structure and may also be the paths of light rays. For example, the path of the light incident from the center of the second lens and received by the second sub-pixel region 402' of the photosensitive chip via the reflecting member can be a broken line, and this may be considered as the center of the second lens and the second sub-pixel region 402' being installed opposite to each other.

[0031] 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 also be located in two pixel regions respectively. The pixel region where 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'.

[0032] In the process of deploying the first lens and the second lens, taking as an example that the distribution situation where the first lens corresponds to each sub-pixel region in the pixel region on the photosensitive chip is the solution shown in FIG. 5, the second lens corresponding to each sub-pixel region in the pixel region on the photosensitive chip may be any one of FIGS. 6-8. That is, the first lens 210 is shifted to the left or down by a size equal to the side length of the sub-pixel region, or shifted to the lower left by a size equal to the length of the diagonal of the sub-pixel region, relative to the second lens 220 respectively.

[0033] The embodiments of the present application provide an imaging module. The first lens and the second lens are combined with the photosensitive chip 400 through a reflecting member. When the photosensitive chip is combined with different lenses, the first sub-pixel region of the photosensitive chip 400 can form a first image, and the second sub-pixel region of the photosensitive chip 400 can form a second image with the same content as the first image. Moreover, the equivalent sub-pixel regions of the first sub-pixel region and the second sub-pixel region within the same pixel region are any two of this pixel region. Thereby, in the two imaging processes, the filtering processing results of the photosensitive chip 400 for one incident light ray are different. Further, the first image and the second image are synthesized using a preset algorithm, and the true photosensitive pixels of each filter channel in the formed synthesized image can be increased, further improving the resolution of the image, making the expression effect of the photo better, and improving the image quality level and user experience of the final image.

[0034] Optionally, the imaging module further includes a driving member, and both the first lens and the second lens are movably combined with the photosensitive chip 400 via the driving member. The driving member can drive the first lens 210 to switch between the first position and the third position, and the driving member can drive the second lens 220 to switch between the second position and the fourth position. When the first lens 210 is in the first position, the light rays incident from the first lens 210 form the first image by the first sub-pixel region of the photosensitive chip 400. When the first lens 210 is in the third position, the light rays incident from the first lens 210 form the third image by the third sub-pixel region of the photosensitive chip 400. When the second lens 220 is in the second position, the light rays incident from the second lens 220 form the second image by the second sub-pixel region of the photosensitive chip 400. When the second lens 220 is in the fourth position, the light rays incident from the second lens 220 form the first image by the first sub-pixel region of the photosensitive chip 400. That is, the image formed when the second lens is in the fourth position is the same as the image formed when the first lens is in the first position.

[0035] The contents of the first image, the second image, and the third image are all the same. The first sub-pixel region, the second sub-pixel region, and the third sub-pixel region, which are equivalent sub-pixel regions within the same pixel region, are any three sub-pixel regions of this pixel region.

[0036] As described above, the pixel region includes sub-pixel regions presenting four 2×2 arrays. In this embodiment, one of the first lens and the second lens can move along the first direction, and the other can move along the second direction. The first direction and the second direction are perpendicular. When the first lens and the second lens are respectively combined with the photosensitive chip, one of the formed images overlaps, that is, the first image and the fourth image. In the operation process of the imaging module, the first image and the fourth image can provide a calibration effect for the imaging module.

[0037] When adopting the above technical solution, the pattern of the filtering processing results for the same light ray of the photosensitive chip 400 can be further increased, and by synthesizing the first image, the second image, and the third image with a preset algorithm, the true number of photosensitive pixels in each filter channel in the synthesized image can be further improved. Specifically, based on the relative positions between the first lens and the second lens and the photosensitive chip, the types of filters corresponding to the first sub-pixel region, the second sub-pixel region, and the third sub-pixel region can be obtained respectively.

[0038] Optionally, by designing the relative positions of the first lens 210 and the second lens 220 and the photosensitive chip 400, the first sub-pixel region, the second sub-pixel region, and the third sub-pixel region can be respectively made to correspond to a green filter, a red filter, and a blue filter. Thereby, the resolution of the photosensitive pixels corresponding to R, G, and B in the image can all be improved, and the effect of the formed image can be made better. More specifically, when adopting the above technical solution, compared with the solution where the light ray directly enters the photosensitive chip, it is equivalent to improving the resolution of the R and B images by two times, improving the resolution of the G image by two times, and greatly improving the sharpness of the image.

[0039] In the process of driving the first lens 210 and the second lens 220 to move, the driving member can ensure that the first lens 210 and the second lens 220 can move a preset displacement amount by accurately controlling the driving amount of the driving member. The preset displacement amount may be the side length of one sub-pixel region. In order to reduce the control difficulty of the imaging module, in another embodiment of the present application, optionally, the imaging module further includes a limit member 600, and both the first lens and the second lens can be movably combined with the photosensitive chip via the limit member 600.

[0040] The limit member 600 includes a limit pedestal 601 and a connection part 602. The limit pedestal or the connection part is connected to the driving member. Correspondingly, the first lens may be connected to the connection part. For example, the limit pedestal may be fixed to the housing. Both the driving head of the first lens and the driving member are connected to the connection part, so that the driving member drives the first lens to move. In the moving process of the first lens, the connection part is restricted by the limit pedestal, and thus the displacement amount and displacement direction of the first lens can be controlled by the limit combination relationship between the limit pedestal and the connection part, reducing the driving difficulty. Correspondingly, the second lens may be connected to the housing via the limit member.

[0041] The limit pedestal has a limit groove, and the connection part is provided in the limit groove. The connection part and the limit groove are in a limit combination in the first direction. The driving member can drive the connection part to move between a first position and a second position along the second direction in the limit groove. Further, the moving direction of the first lens can be restricted by the limit groove, and the distance that the connection part moves from the first position to the second position is equal to the side length of the sub-pixel region. The first direction and the second direction are perpendicular. In such a case, the displacement amount of the first lens can be further restricted.

[0042] Specifically, the limit member may be a microelectromechanical system, which serves the purpose of generating displacements at the pixel size level for the first lens and the second lens, ensuring that the first lens 210 can accurately move between a first position and a third position, and further ensuring that the second lens 220 can accurately move between a second position and a fourth position, reducing the difficulty of displacement control for the first lens and the second lens.

[0043] In addition, when the above limit member is adopted to attach the first lens 210 and the second lens 220, since the moving directions of the first lens 210 and the second lens 220 are perpendicular to each other, the deployment directions of the limit member connected to the first lens and the limit member connected to the second lens can be made perpendicular to each other. Specifically, the first lens is connected to the housing via the first limit member 610, the second lens is connected to the housing via the second limit member 620, and since the deployment directions of the first limit member 610 and the second limit member 620 are perpendicular to each other, the extending directions of the limit grooves 603 in the first limit member 610 and the extending directions of the limit grooves 603 in the second limit member 620 can also be made perpendicular to each other, thereby ensuring that the first lens can move between the first position and the third position, and ensuring that the second lens can move between the second position and the fourth position.

[0044] Here, the sizes of the limit grooves in the first direction and the second direction on the limit pedestal may be determined based on parameters such as the structure and size of the connection part, and it is only necessary to ensure that the moving distance when the connection part moves in the limit groove meets the above requirements. Optionally, the sizes of the connection part in the first direction and the second direction are both equal to the side length of the sub-pixel region. In such a case, the size of the bottom surface of the limit groove may be equal to the size of two joined sub-pixel regions, thereby relatively reducing the design and processing difficulty of the limit groove, and ensuring that there is a more reliable limiting relationship between the connection part and the limit groove. Specifically, the connection part may be a columnar structural member with a square bottom surface. In another embodiment of the present application, the connection part 602 may be a cylindrical structural member. In such a case, the contact area between the connection part 602 and the limit groove 603 is small, thereby reducing the difficulty of relative movement between the two and reducing the driving difficulty.

[0045] The optical axes of the first lens 210 and the second lens 220 are both perpendicular to the photosensitive surface of the photosensitive chip 400, that is, the optical axes of both are perpendicular to the plane where the photosensitive surface of the photosensitive chip 400 is located. That is, the photosensitive chip faces the first lens and the second lens. In such a case, the design and installation difficulty of the first lens, the second lens, and the photosensitive chip are all relatively low, and the photosensitive amount of the photosensitive chip 400 can be improved, and the imaging effect can be improved. Of course, when there is a corresponding need, the photosensitive chip 400 does not have to face the first lens 210. For example, the imaging module may be set as a periscope-type module, whereby the zoom magnification of the imaging module can be improved.

[0046] As described above, the number of reflecting members may be two. In another embodiment of the present application, optionally, the number of reflecting members is three, and includes a first reflecting member 310, a second reflecting member 320, and a third reflecting member 330. Here, both the first reflecting member 310 and the second reflecting member 320 are fixedly installed with respect to the photosensitive chip 400, and the third reflecting member 330 is located between the first reflecting member 310 and the second reflecting member 320, and the third reflecting member 330 is rotatably combined with the photosensitive chip 400.

[0047] Specifically, the photosensitive chip may be specifically installed between the first lens 210 and the second lens 220, and both the first lens and the second lens are combined with the photosensitive chip through two reflecting members. Here, the third reflecting member is a shared reflecting member, and the third reflecting member can be rotated between different directions with respect to the photosensitive chip through a rotational driving member such as a motor. Along with the rotation of the third reflecting member, the third reflecting member may face the first reflecting member or the second reflecting member. Furthermore, it is ensured that the first lens 210 is combined with the photosensitive chip through the first reflecting member and the third reflecting member, and the second lens 220 can be combined with the photosensitive chip through the second reflecting member and the third reflecting member. In such a case, the consistency between the first image and the second image formed by the photosensitive chip from the first lens and the second lens can be further improved, and furthermore, the display effect of the synthesized image can be improved.

[0048] Optionally, the imaging module according to the embodiment of the present application further includes an infrared filter 500, and the infrared filter 500 is installed on the incident light side of the photosensitive chip 400. The infrared filter 500 can provide a filtering effect on the light rays incident into the imaging module through the first lens 210 or the second lens 220, thereby filtering out unnecessary light rays projected onto the photosensitive chip 400, preventing false colors and / or moiré from occurring in the image collected by the photosensitive chip 400, and improving the effective resolution and color reproducibility of the photosensitive chip 400.

[0049] Optionally, at least one of the first lens 210 and the second lens 220 is an extended depth of field lens. The R, G, and B filter channels of the first lens 210 and / or the second lens 220 are designed such that their passing focal points are located at different positions, and by covering three focal distances at the three passing focal points, the longitudinal chromatic aberration in the three wavelength bands of R, G, and B is increased to achieve the purpose of covering three distances: long distance, medium distance, and short distance. Here, the three distances of long distance, medium distance, and short distance are relative concepts. That is, a farther distance is a position farther from the intermediate distance, and a closer distance is a position closer to the intermediate distance.

[0050] By applying the above technical solution to the first lens 210 or the second lens 220, three photos corresponding to R, G, and B can be taken respectively, and these three photos are focused on the above three distances of long distance, medium distance, and short distance respectively. Then, based on the restoration algorithm, the window detection function can be used to detect the entire field of view area, determine which of the three photos corresponding to R, G, and B in each window is the sharpest, and then, based on the sharpest photo, perform sharpness conversion on the other two photos using the deconvolution algorithm, and synthesize photos with relatively sharp images at all distances.

[0051] Based on the imaging module disclosed in any one of the above embodiments, the embodiments of the present application further provide an electronic device, which includes the imaging module according to any one of the above embodiments. Of course, the electronic device further includes other devices such as a display module, a housing, and a battery. Considering the simplicity of the text, they will not be introduced 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, this electronic device may also be other devices, and the embodiments of the present application do not limit this.

[0053] What is emphasized in the above embodiments of this application is the differences between the embodiments. The different optimization features between the embodiments can form more suitable embodiments by combination as long as they do not conflict. Considering the brevity of the text, no further explanation is provided here.

[0054] The above are only embodiments of this application and do not limit this application. For those skilled in the art, this application may have various changes and variations. All changes, equivalent substitutions, improvements, etc. made within the spirit and principle of this application should be included within the scope of the claims of this application.

Description of Reference Numerals

[0055] 100 - Housing, 210 - First lens, 220 - Second lens, 310 - First reflecting member, 320 - Second reflecting member, 330 - Third reflecting member, 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 - Limit member, 610 - First limit member, 620 - Second limit member, 601 - Limit pedestal, 602 - Connection part, 603 - Limit groove.

Claims

Claim 1 An imaging module, comprising a photosensitive chip, a first lens, a second lens, and a plurality of reflecting members, wherein the photosensitive chip is a Bayer array sensor, the photosensitive chip includes a plurality of pixel regions arranged in a matrix, each of the pixel regions includes four sub-pixel regions, the fields of view of the first lens and the second lens are the same, and the first lens and the second lens are each combined with the photosensitive chip via a plurality of the reflecting members, the light rays incident from the first lens form a first image by a first sub-pixel region of the photosensitive chip, the light rays incident from the second lens form a second image by a second sub-pixel region of the photosensitive chip, the contents of the first image and the second image are the same, and the equivalent sub-pixel regions within the same pixel region of the first sub-pixel region and the second sub-pixel region are any two of the sub-pixel regions of this pixel region, the imaging module further includes a driving member, the first lens and the second lens are each movably combined with the photosensitive chip via the driving member, the driving member can drive the first lens to switch between a first position and a third position, and the driving member can drive the second lens to switch between a second position and a fourth position, when the first lens is in the first position, the light rays incident from the first lens form the first image by a first sub-pixel region of the photosensitive chip, when the first lens is in the third position, the light rays incident from the first lens form a third image by a third sub-pixel region of the photosensitive chip, when the second lens is in the second position, the light rays incident from the second lens form the second image by a second sub-pixel region of the photosensitive chip, when the second lens is in the fourth position, the light rays incident from the second lens form the first image by a first sub-pixel region of the photosensitive chip, The contents of the first image, the second image, and the third image are all the same. The equivalent sub-pixel regions of the first sub-pixel region, the second sub-pixel region, and the third sub-pixel region within the same pixel region are any three of the sub-pixel regions within this pixel region. Imaging module.

2. The imaging module further includes a limiting member. Both the first lens and the second lens are movably combined with the photosensitive chip via the limiting member. The limiting member includes a limiting pedestal and a connecting portion. The limiting pedestal or the connecting portion is connected to the driving member. The limiting pedestal has a limiting groove, and the connecting portion is installed in the limiting groove. The connecting portion is limit-combined with the limiting groove in a first direction. The driving member can drive the connecting portion to move between a first position and a second position along a second direction within the limiting groove. The distance that the connecting portion moves from the first position to the second position is equal to the side length of the sub-pixel region. The first direction and the second direction are perpendicular. The imaging module according to claim 1.

3. When the cross-section of the connecting portion is circular and the connecting portion is restricted by the limiting member, the sizes of the connecting portion in the first direction and the second direction are both equal to the side length of the sub-pixel region. The imaging module according to claim 2.

4. The connecting portion is a cylindrical structural member. The imaging module according to claim 3.

5. The optical axes of the first lens and the second lens are both perpendicular to the photosensitive surface of the photosensitive chip. The imaging module according to claim 1.

6. The plurality of reflection members include a first reflection member, a second reflection member, and a third reflection member. Both the first reflection member and the second reflection member are fixedly installed facing the photosensitive chip. The third reflection member is located between the first reflection member and the second reflection member. The third reflection member is rotatably combined with the photosensitive chip. The imaging module according to claim 5.

7. The imaging module further includes an infrared filter. The infrared filter is installed on the light incident side of the photosensitive chip. The imaging module according to claim 1.

8. The imaging module according to claim 1, wherein at least one of the first lens and the second lens is an extended depth of field lens.

9. An electronic device, comprising the imaging module according to any one of claims 1 to 8.

Images