Prism assembly, periscope camera module and electronic device

Abstract

The application discloses a prism assembly, a periscopic camera module and an electronic device, relates to the technical field of optical imaging, and can ensure that the prism can be stably installed in a carrier and the reliability of the periscopic camera module is ensured. The prism assembly comprises a prism and a carrier, the prism comprises an incident light surface, an emergent light surface, a reflecting surface, and a first side surface surrounded by the incident light surface, the emergent light surface and the reflecting surface, light incident on the incident light surface is reflected by the reflecting surface and then emitted from the emergent light surface, and the first side surface is a curved surface. The carrier comprises a containing groove, the prism is contained in the containing groove, the containing groove has a first side wall, the first side wall is located on one side facing the first side surface, the first side wall has a first surface facing the first side surface, the first surface is a curved surface, and the first surface is matched with the first side surface.

Description

Technical Field

[0001] This application relates to the field of optical imaging technology, and more particularly to a prism assembly, a periscope camera module, and an electronic device. Background Technology

[0002] As users' demands for image quality continue to rise, periscope camera modules, due to their ultra-long-distance shooting capabilities, are increasingly being used in electronic devices such as mobile phones and tablets. Furthermore, to further improve the clarity of images captured by periscope camera modules, the image sensors within these modules are becoming increasingly larger, and the prisms that are compatible with these sensors are also growing in size. Therefore, how to securely mount these large prisms within the carrier has become a problem that needs to be solved. Summary of the Invention

[0003] This application provides a prism assembly, a periscope camera module, and an electronic device, which can ensure that the prism can be stably installed in the carrier and ensure the reliability of the periscope camera module.

[0004] To achieve the above objectives, this application adopts the following technical solution:

[0005] In a first aspect, this application provides a prism assembly comprising a prism and a carrier. The prism includes an incident light surface, an exit light surface, a reflective surface, and a first side surface surrounded by the incident light surface, the exit light surface, and the reflective surface. Light incident on the incident light surface is reflected by the reflective surface and exits from the exit light surface. The first side surface is curved. The carrier includes a receiving groove, in which the prism is received. The receiving groove has a first sidewall located on the side facing the first side surface. The first sidewall has a first surface facing the first side surface, the first surface being curved and adapted to the first side surface.

[0006] In this way, the carrier's receiving groove fits snugly against the outer peripheral surface of the prism, resulting in a higher compatibility between the carrier and the prism. Furthermore, the first side of the prism is curved, which increases the contact area between the prism and the carrier compared to a flat surface. When the prism and carrier are fixed together, they are connected by an adhesive bonding method, further increasing the bonding area and thus the bonding strength. When the electronic device is dropped or impacted, the adhesive force between the prism and the carrier is greater than the stress that would cause them to separate. Therefore, the risk of the prism loosening or detaching is greatly reduced, thereby improving the camera's image quality and enhancing the user experience.

[0007] Furthermore, when the first side surface and the first surface are curved, their shapes restrict the direction of movement of the prism relative to the carrier. For example, when an electronic device is dropped or impacted, stress occurs between the prism and the carrier due to relative movement. In the direction of this stress, the first side surface and the first surface extend in a curved path, creating an uneven mating surface. Therefore, when the prism and the carrier are subjected to stress, the uneven mating surface between the first side surface and the first surface restricts the movement of the prism relative to the carrier. The prism can not only be bonded to the carrier with adhesive, but the structural features of the prism and the carrier also restrict the movement of the prism relative to the carrier, further improving the stability of the connection between the prism and the carrier and preventing the prism from loosening or falling off.

[0008] In one possible implementation of the first aspect, the first side surface includes a first plane and a second plane, the plane containing the first plane intersecting the plane containing the second plane. The first surface includes a third plane and a fourth plane, the plane containing the third plane intersecting the plane containing the fourth plane, the third plane facing the first plane, and the fourth plane facing the second plane.

[0009] In other words, the first side surface is a curved surface composed of a first plane and a second plane. Compared to a curved surface with multiple uneven sections, the first side surface only has two planes, making the prism manufacturing process simpler and ensuring higher precision. Furthermore, the presence of both the first and second planes on the first side surface can limit the prism's movement relative to the carrier through its structural features, thus preventing the prism from loosening or falling off. This further improves the stability of the connection between the prism and the carrier, enhances the image quality of the periscope camera module, and improves the user experience.

[0010] In one possible implementation of the first aspect, the plane containing the light-incident surface intersects the plane containing the light-outceasing surface to form a first intersection line. The plane containing the first plane intersects the plane containing the second plane to form a second intersection line, which is perpendicular to and intersects the first intersection line. In this way, the first and second planes are non-coplanar congruent triangles. When the electronic device is dropped or impacted, the adhesive force between the first plane and the first sidewall is equal to the adhesive force between the second plane and the first sidewall, so that the stress between the prism and the carrier can be evenly distributed across all areas of the first sidewall.

[0011] Furthermore, since the first and second planes are not coplanar, a protrusion or depression is formed at their intersection. The receiving groove of the carrier forms an inner wall surface that matches the first side surface, thus restricting the movement of the prism. The prism may detach from the carrier only when the stress direction between the prism and the carrier is parallel to the second intersection line. When the stress direction between the prism and the carrier intersects the second intersection line, the prism and the carrier restrict the movement of the prism relative to the carrier through their own structural features. Therefore, the prism and carrier in this application are not only connected by adhesive material, but also further fixed by their own structural features, thereby avoiding the problem of prism loosening and detachment, and improving the user experience.

[0012] In one possible implementation of the first aspect, the plane containing the incident surface intersects the plane containing the reflective surface, forming a third intersection line. In the direction of the first intersection line, the distance from the end of the first intersection line near the first surface to the end of the third intersection line near the first surface is a first distance, which is greater than or equal to 0.8 mm and less than or equal to 1.5 mm. This increases the area of ​​the first side surface, thereby increasing the adhesive strength between the prism and the carrier. If the first distance is less than 0.8 mm, the increased area of ​​the first side surface is minimal, having little effect on increasing the adhesive area between the prism and the carrier; therefore, the first distance needs to have a lower limit.

[0013] When the first distance is less than or equal to 1.5 mm, the effective light-transmitting area of ​​the prism can be guaranteed, and the problem of difficult processing caused by excessive tilt of the first side of the prism can be avoided. In summary, when the first distance is within the above range, it can ensure that the area of ​​the first plane is increased, thereby increasing the area of ​​the first side, and thus improving the bonding area between the prism and the carrier; it can also ensure that the effective light-transmitting area of ​​the prism is not affected, which facilitates the processing of the prism.

[0014] In one possible implementation of the first aspect, a first angle is formed between the first plane and the second plane, the opening of the first angle facing the side of the first side away from the first surface, and the first angle is less than 180 degrees. A second angle is formed between the third plane and the fourth plane, the opening of the second angle facing the first side, and the first angle is less than 180 degrees.

[0015] In this way, the first and second planes protrude towards the first sidewall, and the receiving groove of the carrier forms an inner wall surface that matches the first sidewall, thereby restricting the movement of the prism. The prism may detach from the carrier only when the stress direction between the prism and the carrier is parallel to the second intersection line. When the stress direction between the prism and the carrier intersects the second intersection line, the prism and the carrier restrict the movement of the prism relative to the carrier through their own structural features. Therefore, the prism and carrier of this application are not only connected by adhesive material, but also further fixed by their own structural features, thereby avoiding the problem of prism loosening and detachment, and improving the user experience.

[0016] In one possible implementation of the first aspect, a first angle is formed between the first plane and the second plane, the opening of the first angle facing the side of the first side away from the first surface, and the first angle is less than 180 degrees. A second angle is formed between the third plane and the fourth plane, the opening of the second angle facing the first side, and the first angle is less than 180 degrees.

[0017] In this way, the third plane extends obliquely from the fourth intersection line to its periphery, towards the direction closer to the prism. The third plane extends away from the first side surface and adapts to the first plane to restrict the movement of the prism. The first and second planes protrude towards the first sidewall, and the receiving groove of the carrier forms an inner wall surface adapted to the first side surface to restrict the movement of the prism. The prism may detach from the carrier only when the stress direction between the prism and the carrier is parallel to the second intersection line. When the stress direction between the prism and the carrier intersects the second intersection line, the prism and the carrier restrict the movement of the prism relative to the carrier through their own structural features. Therefore, the prism and carrier of this application are not only connected by adhesive material, but also further fixed by their own structural features, thereby avoiding the problem of prism loosening and detachment, and improving the user experience.

[0018] In one possible implementation of the first aspect, a first rounded corner structure is provided at the first intersection line, a second rounded corner structure is provided at the second intersection line, and a third rounded corner structure is provided on the first sidewall opposite to the second rounded corner structure. The first rounded corner structure can prevent stress concentration in the prism at the first intersection line, thereby enhancing the structural strength of the prism. Similarly, the second rounded corner structure can prevent stress concentration in the prism at the second intersection line, thereby enhancing the structural strength of the prism.

[0019] In one possible implementation of the first aspect, the first surface has at least one first elongated groove recessed away from the first side surface. A first adhesive material is disposed within the first elongated groove, and the first adhesive material is bonded between the inner surface of the first elongated groove and the first side surface. In this way, the first elongated groove provides a larger accommodating space for the first adhesive material, increasing the volume of the first adhesive material between the prism and the carrier, thereby enhancing the bonding strength between the prism and the carrier. Furthermore, this improves the stability of the connection between the prism and the carrier, and enhances the user experience.

[0020] In one possible implementation of the first aspect, the plane containing the first plane intersects with the plane containing the second plane to form a second intersection line. There are multiple first elongated slots, which are parallel and spaced apart along the direction of the second intersection line. The length direction of the first elongated slots is perpendicular to the second intersection line. A portion of the first elongated slot along its length direction is located on a third plane, and another portion along its length direction is located on a fourth plane. In this way, the length direction of the first elongated slots being perpendicular to the direction of the second intersection line can effectively resist stress parallel to the second intersection line, thereby effectively preventing the prism from detaching from the carrier and further improving the reliability of the connection between the prism and the carrier.

[0021] In one possible implementation of the first aspect, a first elongated groove is disposed on a third plane, and the first surface also has at least one second elongated groove recessed away from the first side surface. The second elongated groove is disposed on a fourth plane, and a second adhesive material is disposed within the second elongated groove. The second adhesive material is bonded between the inner surface of the second elongated groove and the first side surface, and the length direction of the first elongated groove intersects with the length direction of the second elongated groove. In this way, the second elongated groove provides a larger accommodating space for the second adhesive material, thereby increasing the volume of the second adhesive material between the prism and the carrier, thus enhancing the bonding strength between the prism and the carrier, further improving the stability of the connection between the prism and the carrier, and enhancing the user experience.

[0022] In one possible implementation of the first aspect, there are multiple first elongated slots, which are parallel and spaced apart along a direction perpendicular to their length. There are also multiple second elongated slots, which are parallel and spaced apart along a direction perpendicular to their length. In this way, the second elongated slots provide a larger accommodating space for the second adhesive material, increasing the volume of the second adhesive material between the prism and the carrier, thereby enhancing the bonding strength between the prism and the carrier. Furthermore, this improves the stability of the connection between the prism and the carrier, and enhances the user experience.

[0023] In one possible implementation of the first aspect, the plane containing the first plane intersects with the plane containing the second plane to form a second intersection line. The length direction of the first long slot is perpendicular to the length direction of the second long slot. The angle bisector between the first and second long slots is a first reference line, which is parallel to the second intersection line. This improves the stability of the connection between the prism and the carrier, and enhances the user experience.

[0024] In one possible implementation of the first aspect, a first light-absorbing layer is provided on the first side to prevent light rays entering from the incident surface from escaping through the first side and the second side, thereby ensuring that light rays entering from the incident surface exit from the exit surface and thus improving the refraction efficiency of the light.

[0025] In one possible implementation of the first aspect, the carrier includes a substrate and a second sidewall opposite to the first sidewall, the substrate, the first sidewall, and the second sidewall forming a receiving groove. Light rays pass through the first opening and illuminate the incident surface, and after being reflected from the emitting surface, the light rays pass through the second opening and illuminate the surface of the lens.

[0026] In one possible implementation of the first aspect, the prism further includes a second side surface surrounded by an incident surface, an exit surface, and a reflective surface, and facing away from the first side surface. The second side surface is curved. The carrier also includes a second side wall facing away from the first side wall, the second side wall having a second surface facing the second side surface, the second surface being curved and adapted to fit the second side surface. In this way, the receiving groove of the carrier fits snugly against the outer peripheral surface of the prism, resulting in a higher compatibility between the carrier and the prism. Furthermore, at least one of the first and second side surfaces of the prism is curved, which increases the contact area between the prism and the carrier compared to a planar shape. When the prism and the carrier are fixed together, they are connected by an adhesive bonding method, which further increases the bonding area between the prism and the carrier, thereby increasing the bonding strength between the prism and the carrier. When an electronic device is dropped or impacted, the adhesive force between the prism and the carrier is greater than the stress that causes the prism and the carrier to separate. As a result, the risk of the prism becoming loose or falling off is greatly reduced, which can improve the photo quality of the electronic device and enhance the user experience.

[0027] When the second side and the second surface are curved, their shapes restrict the direction of movement of the prism relative to the carrier. For example, when an electronic device is dropped or impacted, stress occurs between the prism and the carrier due to relative movement. In the direction of this stress, the second side and the second surface extend in a curved path, creating an uneven mating surface. Therefore, when the prism is subjected to stress Fx, the uneven mating surface between the second side and the second surface restricts the movement of the prism relative to the carrier. The prism can not only be bonded to the carrier with adhesive, but its structural features also restrict its movement relative to the carrier, further improving the stability of the connection and preventing the prism from loosening or detaching.

[0028] In one possible implementation of the first aspect, the first side surface and the second side surface are symmetrically arranged relative to the first reference surface, the incident light surface and the emitting light surface intersect to form a first intersection line, and the first reference surface passes through the midpoint of the first intersection line and is perpendicular to the reflecting surface. The first side surface and the second side surface of the prism have a symmetrical structure, which facilitates the fabrication of the prism.

[0029] Secondly, this application also provides a periscope camera module, which includes the aforementioned prism assembly, lens group, and image sensor. The light-incident surface of the prism assembly faces the object side, and the light-exiting surface of the prism assembly faces the image side. The lens group is located on the side facing the light-exiting surface. The image sensor is located on the side of the lens group opposite to the prism assembly.

[0030] Since the periscope camera module provided in this application includes the prism assembly of the above-mentioned technical solution, both can solve the same technical problem and achieve the same effect.

[0031] Thirdly, this application also provides an electronic device, which includes a housing and a periscope camera module. The housing has a light-transmitting window, and the periscope camera module is the periscope camera module described above, which is disposed inside the housing.

[0032] Since the electronic device provided in this application includes the periscope camera module of the above technical solution, both can solve the same technical problem and achieve the same effect. Attached Figure Description

[0033] Figure 1 Perspective views of electronic devices provided in some embodiments of this application;

[0034] Figure 2 for Figure 1 Exploded view of the electronic device shown;

[0035] Figure 3Exploded views of periscope camera modules provided in some embodiments of this application;

[0036] Figure 4 for Figure 3 The diagram shows the structure of the prism assembly.

[0037] Figure 5 for Figure 4 The simulation diagram shows the stress on the first side of the prism when it is dropped or colliding.

[0038] Figure 6 This is a schematic diagram of the structure of a prism assembly provided in some embodiments of this application;

[0039] Figure 7 for Figure 6 Exploded view of the prism assembly shown;

[0040] Figure 8 for Figure 6 A schematic diagram of the structure of the prism in the prism assembly as seen from the F2 viewpoint;

[0041] Figure 9 for Figure 6 Another structural schematic diagram of the prism in the prism assembly shown, viewed from the F2 angle;

[0042] Figure 10 for Figure 6 The diagram shown is a simplified representation of the fit between the first side surface and the first sidewall when the prism is fitted to the carrier.

[0043] Figure 11 for Figure 6 A schematic diagram of the structure of the first side of the prism shown;

[0044] Figure 12 for Figure 6 Another structural schematic diagram of the first side of the prism as seen from the F2 viewpoint;

[0045] Figure 13 for Figure 7 A schematic diagram of the carrier in the prism assembly as seen from the F2 viewpoint;

[0046] Figure 14 for Figure 6 A three-dimensional view of the prism in the prism assembly shown;

[0047] Figure 15 for Figure 7 A schematic diagram of the structure of the prism in the prism assembly as seen from the F3 viewpoint;

[0048] Figure 16 for Figure 7 Another structural schematic diagram of the prism in the prism assembly shown, viewed from the F3 angle;

[0049] Figure 17 A schematic diagram illustrating the fabrication of a first side surface of a prism provided in some embodiments of this application;

[0050] Figure 18 This is a schematic diagram of a prism structure provided in some embodiments and some other embodiments of this application;

[0051] Figure 19 Schematic diagrams of the structure of the carrier provided in some embodiments of this application;

[0052] Figure 20 Schematic diagrams of the structure of the carrier provided in some embodiments of this application;

[0053] Figure 21 This is a schematic diagram of the structure of a prism provided in some embodiments of this application;

[0054] Figure 22 This is a schematic diagram showing the direction of prism 411's disengagement under stress in the prior art;

[0055] Figure 23 This is a schematic diagram of the structure of the prism 411 provided in some embodiments of this application.

[0056] Figure label:

[0057] 100. Electronic devices;

[0058] 10. Screen; 11. Light-transmitting cover; 12. Display screen;

[0059] 20. Back cover; 21. Back panel; 211. Mounting port; 22. Frame; 23. Middle plate;

[0060] 40. Periscope camera module; 41. Prism assembly; 411. Prism; 4111. Light-incident surface; 4112. Light-exiting surface; 4113. Reflective surface;

[0061] 4114, First side surface; 4114a, First plane; 4114b, Second plane; 4115, Second side surface; 4116, First light-absorbing layer; 4117, Second light-absorbing layer;

[0062] L1, First intersection line; L2, Second intersection line; L3, Third intersection line; L5, Fifth intersection line; 4111a, First edge; 4112a, Second edge; 4113a, Third edge; 4113b, First segment; 4113c, Second segment; D1, First point; P2, Second point; M1, First reference plane;

[0063] 412, Carrier; 4121, Receiving groove; 4122, First opening; 4123, Second opening; 4124, Base; 4124a, Bottom wall; 4125, First side wall; 4125a, Third plane; 4125b, Fourth plane; 4125c, First surface; 4126, Second side wall; 4127, First long groove; 4128, Second long groove;

[0064] 42. Lens assembly; 43. Image sensor; 50. Camera cover; 51. Light-transmitting window.

[0065] 60. Prism blank; 61. First surface; 62. Second surface; 63. Fourth surface; 64. Fifth surface;

[0066] R1, first rounded corner structure; R2, second rounded corner structure; R3, third rounded corner structure. Detailed Implementation

[0067] The technical solutions of the embodiments of this application will be described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of this application, and not all embodiments.

[0068] In the embodiments of this application, the terms "exemplary" or "for example" are used to indicate examples, illustrations, or descriptions. Any embodiment or design described as "exemplary" or "for example" in the embodiments of this application should not be construed as being more preferred or advantageous than other embodiments or designs. Specifically, the use of terms such as "exemplary" or "for example" is intended to present the relevant concepts in a specific manner.

[0069] In the embodiments of this application, the terms "first" and "second" are used for descriptive purposes only and should not be construed as indicating or implying relative importance or implicitly specifying the number of technical features indicated. Thus, a feature defined with "first" and "second" may explicitly or implicitly include one or more of that feature.

[0070] In the description of the embodiments of this application, "and / or" is merely a way of describing the relationship between related objects, indicating that there can be three relationships. For example, A and / or B can represent three situations: A exists alone, A and B exist simultaneously, and B exists alone. In addition, the character " / " in this application generally indicates that the related objects before and after it are in an "or" relationship.

[0071] In the embodiments of this application, directional terms such as "upper", "lower", "lateral", "longitudinal", "horizontal" and "vertical" may be defined relative to the orientation of the components shown in the accompanying drawings. It should be understood that these directional terms can be relative concepts, used for relative description and clarification, and may change accordingly depending on the orientation of the components in the accompanying drawings.

[0072] In the description of the embodiments of this application, it should be noted that, unless otherwise explicitly specified and limited, the terms "installation," "connection," and "linking" should be interpreted broadly. For example, "linking" can be a detachable connection or a non-detachable connection; it can be a direct connection or an indirect connection through an intermediate medium. "Fixed connection" refers to a connection where the relative positional relationship remains unchanged after connection. "Rotary connection" refers to a connection where the two parts can rotate relative to each other after connection. "Sliding connection" refers to a connection where the two parts can slide relative to each other after connection.

[0073] In the description of embodiments of this application, the terms "consistent direction," "perpendicular," "parallel," and "equal" include the described situation and situations that are similar to the described situation, within an acceptable deviation range, wherein the acceptable deviation range is determined by those skilled in the art taking into account the measurement under discussion and the error associated with the measurement of a particular quantity (i.e., the limitations of the measurement system). For example, "parallel" includes absolute parallelism and approximate parallelism, wherein the acceptable deviation range for approximate parallelism may be, for example, a deviation within 5° or 10°; "perpendicular" includes absolute perpendicularity and approximate perpendicularity, wherein the acceptable deviation range for approximate perpendicularity may also be, for example, a deviation within 5° or 10°. "Equal" includes absolute equality and approximate equality, wherein the acceptable deviation range for approximate equality may be, for example, a difference between the two equals being less than or equal to 5% or 10% of either one.

[0074] This application provides an electronic device 100, which has a periscope camera module 40 capable of capturing videos and images. The electronic device 100 provided in this application can be a portable electronic device or other suitable electronic device. For example, the electronic device 100 can be a mobile phone, tablet computer, laptop computer, personal digital assistant (PDA), camera, personal computer, laptop computer, in-vehicle equipment, wearable device (e.g., smartwatch, smart bracelet), augmented reality (AR) glasses, AR helmet, virtual reality (VR) glasses, or VR helmet, etc.

[0075] Please see Figure 1 and Figure 2 , Figure 1 A perspective view of an electronic device 100 provided in some embodiments of this application. Figure 2 for Figure 1 An exploded view of the electronic device 100 is shown. In this embodiment, the electronic device 100 is a mobile phone. The electronic device 100 includes a screen 10, a back cover 20, a periscope camera module 40, a circuit board assembly, and a camera decorative cover 50.

[0076] Understandable, Figure 1 and Figure 2 The electronic device 100 is shown only schematically, and the actual shape, size, location, and construction of these components are not subject to change. Figure 1 and Figure 2 The limitations. In some other examples, the electronic device 100 may also not include the screen 10 and the camera cover 50.

[0077] In this embodiment, the electronic device 100 is in the shape of a rectangular plate. For ease of description in the following embodiments, an XYZ coordinate system is established for the electronic device 100, defining the width direction of the electronic device 100 as the X-axis, the length direction as the Y-axis, and the thickness direction as the Z-axis. It is understood that the coordinate system setting of the electronic device 100 can be flexibly set according to actual needs and is not specifically limited here. In other embodiments, the shape of the electronic device 100 may also be a square plate, a circular plate, an elliptical plate, etc.

[0078] Screen 10 is used to display images, videos, etc. Please refer to [link / reference]. Figure 2 The screen 10 includes a light-transmitting cover 11 and a display screen 12. The light-transmitting cover 11 and the display screen 12 are stacked and fixedly connected. The light-transmitting cover 11 is mainly used to protect the display screen 12 and prevent dust.

[0079] The back cover 20 is used to protect the internal electronic components of the electronic device 100. See also... Figures 1-2 The back cover 20 includes a back cover 21 and a frame 22. The back cover 21 is located on the side of the display screen 12 away from the light-transmitting cover plate 11, and is stacked on top of the light-transmitting cover plate 11 and the display screen 12. The frame 22 is located between the back cover 21 and the light-transmitting cover plate 11. The light-transmitting cover plate 11 and the back cover 21 can be fixed to opposite ends of the frame 22 respectively. The light-transmitting cover plate 11, the back cover 21, and the frame 22 form an internal receiving space for the electronic device 100. This internal receiving space houses the display screen 12.

[0080] In some embodiments, please refer to Figure 2The electronic device 100 also includes a middle plate 23. The middle plate 23 serves as the structural "skeleton" of the electronic device 100, and is fixed to the inner surface of the frame 22 around its perimeter. For example, the middle plate 23 can be fixed to the frame 22 by welding. Alternatively, the middle plate 23 can be integrally formed with the frame 22.

[0081] The periscope camera module 40 is used to capture photos / videos. The periscope camera module 40 is fixed inside the back cover 20 of the electronic device 100. Specifically, the periscope camera module 40 is disposed within an internal receiving cavity of the electronic device 100. The periscope camera module 40 can be used as a rear-facing periscope camera module or as a front-facing periscope camera module.

[0082] In some embodiments, please refer to Figure 1 and Figure 2 The periscope camera module 40 can be fixed to the surface of the middle plate 23 facing the back cover 21, with the light-incident surface of the periscope camera module 40 facing the back cover 21. The back cover 21 has a mounting opening 211, and a camera decorative cover 50 covers and is fixed to the mounting opening 211. The camera decorative cover 50 is used to protect the periscope camera module 40. The camera decorative cover 50 has a light-transmitting window 51. The light-transmitting window 51 allows light from objects to enter the light-incident surface of the periscope camera module 40. In this embodiment, the periscope camera module 40 is used as a rear-mounted periscope camera module 40 of the electronic device 100.

[0083] In other embodiments, the periscope camera module 40 can also be fixed to the surface of the middle plate 23 facing the light-transmitting cover plate 11. In this case, the light-incident surface of the periscope camera module 40 faces the light-transmitting cover plate 11. The display screen 12 is provided with a light path avoidance hole. This light path avoidance hole allows light from the scene to pass through the light-transmitting cover plate 11 and then enter the light-incident surface of the periscope camera module 40. In this way, the periscope camera module 40 is used as a front-facing periscope camera module 40 of the electronic device 100.

[0084] Please see Figure 3 , Figure 3 This is an exploded view of a periscope camera module 40 provided in some embodiments of this application. The periscope camera module 40 includes a prism assembly 41, a lens group 42, and an image sensor 43.

[0085] Understandable, Figure 3 The periscope camera module 40 is shown only schematically, and the actual shape, size, position, and construction of these components are not subject to change. Figure 3 The limitations. Furthermore. Figure 3 coordinate system and Figure 1 and Figure 2 The coordinate systems in the text are represented by the same coordinate system. That is, Figure 3The various components within the periscope camera module 40 Figure 3 The orientation relationship in the coordinate system shown is related to the position of the periscope camera module 40 when it is applied to... Figure 1 and Figure 2 When the electronic device 100 shown is inside, its various components are... Figure 1 and Figure 2 The orientation relationships are the same in the coordinate system shown.

[0086] Please refer to the following: Figure 3 and Figure 4 , Figure 4 for Figure 3 The schematic diagram of the prism assembly 41 shown includes a prism 411 and a carrier 412. The prism 411 is used to fold the light path and is disposed on the object side of the lens group 42. The carrier 412 is used to fix the prism 411. Specifically, the carrier 412 has a receiving groove 4121 in which the prism 411 is received.

[0087] Lens group 42 may include one or more optical lenses. These optical lenses may be convex or concave lenses. When there are multiple optical lenses, they may be arranged along the optical axis P1 of lens group 42. The optical axis P1 of lens group 42 may be parallel to the Y-axis. It is understood that in other embodiments, the optical axis P1 of lens group 42 may also be parallel to the X-axis.

[0088] The light ray λ from the object side enters the prism 411 through the light-transmitting window 51. The prism 411 then redirects the light path and projects it onto the lens group 42. Specifically, the prism 411 redirects the light ray propagating along P2 into a light ray propagating along P1 before it illuminates the lens group 42. The lens group 42 can use the principle of refraction to converge the light onto the imaging surface of the periscope camera module 40 for imaging.

[0089] In this embodiment of the application, "object side of lens group 42" refers to the side of lens group 42 closest to the object being photographed. "Image side of lens group 42" refers to the side of lens group 42 closest to the image of the object being photographed.

[0090] Image sensor 43 is used to acquire the imaging beam after it has passed through lens group 42 and convert the image information carried by the imaging beam into an electrical signal. Image sensor 43 can also be called a photosensitive chip or a photosensitive element. Image sensor 43 is located on the image side of lens group 42. Image sensor 43 includes a photosensitive surface facing the light-emitting side of the lens. Multiple photosensitive units are provided on the photosensitive surface.

[0091] Telephoto lenses function similarly to telescopes, allowing users to capture images of distant objects. Their field of view is significantly smaller than that of the naked eye (smaller viewpoint), facilitating long-distance shooting. Electronic devices 100 with telephoto capabilities are becoming increasingly popular. As the number of cameras on electronic devices 100 increases, periscope camera modules 40 with telephoto lenses are also being used more frequently.

[0092] To achieve high image sharpness with the telephoto lens, the periscope camera module 40 typically employs an image sensor 43 with a larger photosensitive surface. This allows the image sensor 43 to collect more light, thereby improving the sharpness and image quality of the telephoto lens. Furthermore, to refract more light onto the photosensitive surface of the image sensor 43, the periscope camera module 40 typically uses a larger prism 411 to accommodate the large-area image sensor 43, enabling the prism 411 to refract more light onto the photosensitive surface of the image sensor 43.

[0093] During the use of electronic device 100, it is inevitable that it will be dropped or impacted. When electronic device 100 is dropped or impacted, its electronic components and structural parts will be squeezed and collided with each other. For example, in periscope camera module 40, prism 411 and carrier 412 will be squeezed and collided, increasing the stress between them. Prism 411 and carrier 412 are usually fixed by adhesive bonding. When the stress between prism 411 and carrier 412 exceeds the adhesive strength, prism 411 will become loose, and in severe cases, it may detach from carrier 412, thus affecting the user's shooting effect and user experience. Please refer to [link / reference]. Figure 5 , Figure 5 for Figure 4 The diagram shows a simulation of the stress on the first side surface 4114 of the prism 411 when it is dropped or impacted. When the electronic device 100 is dropped or impacted, the edge area of ​​the prism 411 experiences greater stress, which is the edge of the side surface area of ​​the prism 411. The prism 411 and the carrier 412 usually peel off at this point, and then gradually loosen and fall off.

[0094] To address the aforementioned issues, improvements could be made by designing the adhesive material. Specifically, a material with strong adhesion could be selected, or a groove could be incorporated into the inner wall of the carrier 412 to accommodate a larger volume of adhesive. However, these solutions have reached a bottleneck and cannot be further improved. To prevent the prism 411 from detaching, a smaller prism 411 could be chosen. However, a smaller prism 411 cannot meet the requirement of refracting more light. Therefore, a smaller prism 411 contradicts the requirement to improve the imaging quality of the periscope camera module 40.

[0095] Therefore, this application improves the bonding strength between the prism 411 and the carrier 412 by modifying their respective structures, thereby solving the problem of the prism 411 easily loosening and falling off. For a more detailed explanation based on this design concept, please refer to [link / reference needed]. Figure 6 and Figure 7 , Figure 6 This is a schematic diagram of the structure of the prism assembly 41 provided in some embodiments of this application;

[0096] Figure 7 for Figure 6 The exploded view of the prism assembly 41 is shown. The structure of the prism 411 can be a prism; in this embodiment, the prism 411 is described as a triangular prism. Specifically, the prism 411 has an incident surface 4111, an exiting surface 4112, and a reflecting surface 4113, as well as a first side surface 4114 and a second side surface 4115 surrounded by the incident surface 4111, the exiting surface 4112, and the reflecting surface 4113. The incident surface 4111, the exiting surface 4112, and the reflecting surface 4113 can be quadrilaterals; in this embodiment, the incident surface 4111, the exiting surface 4112, and the reflecting surface 4113 are congruent quadrilaterals.

[0097] In this embodiment, the light-incident surface 4111 faces a first direction, which is parallel to the Z-axis direction, meaning the light-incident surface 4111 faces the light-transmitting window 51. The light-exiting surface 4112 faces a second direction. In this embodiment, the second direction is parallel to the Y-axis direction; in other embodiments, the second direction may also be parallel to the X-axis direction. The term "parallel" as used above is not absolute; it refers to parallelism with a certain degree of error. For example, an angle less than 30 degrees between the first direction and the Z-axis direction can be considered "parallel." The definition of "parallel" will be repeated below. The light-incident surface 4111 and the light-exiting surface 4112 are connected and form a first intersection line L1, and a first angle α is formed between them. This first angle α can be 75 degrees, 80 degrees, 85 degrees, 90 degrees, 95 degrees, 100 degrees, etc.

[0098] The reflective surface 4113 faces a third direction and is connected between the light-incident surface 4111 and the light-exiting surface 4112. Specifically, the reflective surface 4113 intersects with the light-incident surface 4111 and forms a third intersection line L3, and the reflective surface 4113 intersects with the light-exiting surface 4112 and forms a fifth intersection line L5. The light-incident surface 4111 has a first edge 4111a, the light-exiting surface 4112 has a second edge 4112a, and the reflective surface 4113 has a third edge 4113a. The ends of the first edge 4111a, the second edge 4112a, and the third edge 4113a are also connected to each other to form a ring. In this embodiment, the ring is approximately triangular. This is only an exemplary description of this application and does not represent a special limitation of this application. That is to say, in some other embodiments, the first edge 4111a, the second edge 4112a, and the third edge 4113a can also form a circular ring, an elliptical ring, a square ring, etc.

[0099] The prism 411 also has a peripheral surface that is in contact with the light-incident surface 4111, the light-exiting surface 4112, and the reflective surface 4113. The peripheral surface includes a first side surface 4114 and a second side surface 4115, which are connected to opposite ends of the light-incident surface 4111. Specifically, the first side surface 4114 is connected to one periphery of the light-incident surface 4111, the light-exiting surface 4112, and the reflective surface 4113, and the second side surface 4115 is connected to the other periphery of the light-incident surface 4111, the light-exiting surface 4112, and the reflective surface 4113. The periphery of the first side surface 4114 is in contact with a first edge 4111a, a second edge 4112a, and a third edge 4113a.

[0100] In some embodiments, the first side surface 4114 and the second side surface 4115 are symmetrically arranged with respect to the first reference surface M1. The light-incident surface 4111 intersects the reflective surface 4113 to form a third intersection line L3. The first reference surface M1 is perpendicular to the reflective surface 4113 and passes through the midpoint of the third intersection line L3. The symmetrical arrangement of the first side surface 4114 and the second side surface 4115 facilitates the processing of the prism 411, and the shape of the carrier 412 adapted to the prism 411 is also easy to process. The symmetrical structure of the prism 411 also facilitates the assembly of the prism 411 and the carrier 412, thereby improving the production efficiency of the prism assembly 41 and promoting the mass production of the prism assembly 41. In other embodiments, the first side surface 4114 and the second side surface 4115 may not be parallel, and the first side surface 4114 and the second side surface 4115 may also be asymmetrically arranged.

[0101] At least one of the first side surface 4114 and the second side surface 4115 is a curved surface. Here, "at least one" includes the following cases: first, the first side surface 4114 is a curved surface and the second side surface 4115 is a plane; second, the first side surface 4114 is a plane and the second side surface 4115 is a curved surface; third, both the first side surface 4114 and the second side surface 4115 are curved surfaces. The following description uses the example of both the first side surface 4114 and the second side surface 4115 being curved surfaces, but this does not constitute a specific limitation on this application, but merely represents an exemplary illustration.

[0102] The following embodiments are described with the first side surface 4114 and the second side surface 4115 symmetrically arranged with respect to the first reference surface M1 as an example. However, this does not imply a specific limitation on this application. That is, in some other embodiments, the first side surface 4114 and the second side surface 4115 may also be asymmetrically arranged. Furthermore, the first side surface 4114 will be used as an example for description.

[0103] Please see Figure 8 and Figure 9 , Figure 8 for Figure 6 A schematic diagram of the structure of prism 411 in prism assembly 41 as seen from the F2 perspective; Figure 9 for Figure 6 This is another structural schematic diagram of the prism 411 in the prism assembly 41 as viewed from the F2 perspective. When viewed from the opposite direction of the third direction, the first side 4114 of the prism 411 can be wavy or zigzag-shaped. Specifically, the first side 4114 can be S-shaped, N-shaped, U-shaped, etc.

[0104] Similarly, the structure of the carrier 412 used to house the aforementioned prism 411 is also adapted to the structure of the prism 411. Here, "adapted" means that the inner wall of the carrier 412 extends along the same path as the inner wall of the prism 411. Please refer back to [link / reference]. Figure 6 and Figure 7 Specifically, the carrier 412 has a base 4124 and a first sidewall 4125 and a second sidewall 4126 disposed opposite to each other. The base 4124, the first sidewall 4125, and the second sidewall 4126 form a receiving groove 4121. The receiving groove 4121 has a first opening 4122, a second opening 4123, and a bottom wall 4124a. The first opening 4122 faces a first direction, the second opening 4123 faces a second direction, and the bottom wall 4124a extends along a third direction. One end of the bottom wall 4124a extends to the first opening 4122, and the other end extends to the second opening 4123. The light-incident surface 4111 faces the light-transmitting window 51 through the first opening 4122, the light-exiting surface 4112 faces the lens group 42 through the second opening 4123, and the reflective surface 4113 is in contact with the bottom wall 4124a. The bottom wall 4124a provides a supporting surface for fixing the prism 411.

[0105] The first sidewall 4125 has a first surface 4125c facing the first side surface 4114, and the second sidewall 4126 has a second surface facing the second side surface 4115. The first surface 4125c is in contact with the first side surface 4114, and the second surface is in contact with the second side surface 4115. That is, when the first side surface 4114 is curved, the first sidewall 4125 is a curved surface with the same shape as the first side surface 4114; when the second side surface 4115 is curved, the second sidewall 4126 is a curved surface with the same shape as the second side surface 4115.

[0106] In this way, the receiving groove 4121 of the carrier 412 fits snugly against the outer peripheral surface of the prism 411, resulting in a higher compatibility between the carrier 412 and the prism 411. Furthermore, at least one of the first side surface 4114 and the second side surface 4115 of the prism 411 is curved. Compared to a flat shape, a curved surface in one of the first side surface 4114 and the second side surface 4115 increases the contact area between the prism 411 and the carrier 412. When the prism 411 and the carrier 412 are fixed together, they are connected by adhesive bonding, which further increases the bonding area between the prism 411 and the carrier 412, thereby increasing the bonding strength between them. When the electronic device 100 is dropped or impacted, the adhesive force between the prism 411 and the carrier 412 is greater than the stress that causes the prism 411 and the carrier 412 to separate from each other due to the external force. As a result, the risk of the prism 411 becoming loose or falling off is greatly reduced, which can improve the photo-taking effect of the electronic device 100 and enhance the user experience.

[0107] Please see Figure 10 , Figure 10 for Figure 6 The diagram shows a simplified representation of the engagement between the first side surface 4114 and the first sidewall 4125 when the prism 411 is engaged with the carrier 412. When the first side surface 4114 and the first surface 4125c are curved surfaces, their shapes restrict the direction of movement of the prism 411 relative to the carrier 412. For example, when the electronic device 100 is dropped or impacted, such as... Figure 10As shown, the stress Fx that causes relative movement between the prism 411 and the carrier 412 extends in a curved direction along the first side surface 4114 and the first surface 4125c, forming an uneven mating surface. Therefore, when the prism 411 and the carrier 412 are subjected to stress Fx, the uneven mating surface between the first side surface 4114 and the first surface 4125c restricts the movement of the prism 411 relative to the carrier 412. The prism 411 can not only be bonded to the carrier 412 with adhesive, but the structural features of the prism 411 and the carrier 412 also restrict the movement of the prism 411 relative to the carrier 412, further improving the stability of the connection between the prism 411 and the carrier 412 and preventing the prism 411 from loosening or falling off.

[0108] Please refer to the following: Figure 11 and Figure 12 , Figure 11 for Figure 6 A schematic diagram of the structure of the first side surface 4114 of the prism 411 shown; Figure 12 for Figure 6 The diagram shows another structural schematic of the first side surface 4114 of the prism 411 as viewed from the F2 angle. The first side surface 4114 includes a first plane 4114a and a second plane 4114b that intersect. In other words, the first side surface 4114 is a curved surface composed of the first plane 4114a and the second plane 4114b. Compared to a curved surface with multiple uneven sections, the first side surface 4114 has only two planes, making the manufacturing of the prism 411 simpler and ensuring its precision. Furthermore, the presence of the first plane 4114a and the second plane 4114b on the first side surface 4114 also restricts the movement of the prism 411 relative to the carrier 412, thus preventing the prism 411 from loosening or falling off. This further improves the stability of the connection between the prism 411 and the carrier 412, enhances the image quality of the periscope camera module 40, and improves the user experience.

[0109] Please see Figure 13 , Figure 13 for Figure 7The diagram shows the structure of the carrier 412 in the prism assembly 41 as viewed from angle F2. The receiving groove 4121 of the carrier 412 is adapted to the prism 411. Specifically, the first sidewall 4125 includes a third plane 4125a and a fourth plane 4125b that intersect. Furthermore, the third plane 4125a is parallel to the first plane 4114a, and the fourth plane 4125b is parallel to the second plane 4114b. An adhesive material can be provided between the first plane 4114a and the third plane 4125a, connecting them. Similarly, an adhesive material is provided between the second plane 4114b and the fourth plane 4125b, connecting them.

[0110] The following section provides a detailed description of the regional division of the first plane 4114a and the second plane 4114b, as well as the extension directions of the first plane 4114a and the second plane 4114b.

[0111] Please see Figure 14 , Figure 14 for Figure 6 The diagram shows a perspective view of prism 411 in prism assembly 41. The incident light surface 4111 intersects with the exit light surface 4112, forming a first intersection line L1. The plane containing the first plane 4114a intersects with the plane containing the second plane 4114b, forming a second intersection line L2. The second intersection line L2 is perpendicular to and intersects the first intersection line L1. More specifically, the first intersection line L1, the first edge 4111a, and the second edge 4112a intersect at a first point D1. The first intersection line L1 and the second intersection line L2 intersect at the first point D1, and the second intersection line L2 is perpendicular to the first intersection line L1. In other words, the second intersection line L2 is the perpendicular bisector of the third edge 4113a. The second intersection line L2 intersects the third edge 4113a at a second point P2, which divides the third edge 4113a into two equal segments: a first segment 4113b and a second segment 4113c. The first edge 4111a, the first segment 4113b, and the second intersection line L2 form a first plane 4114a, and the second edge 4112a, the second segment 4113c, and the second intersection line L2 form a second plane 4114b. Based on the above embodiment, the first plane 4114a and the second plane 4114b are congruent triangles.

[0112] In this way, the first plane 4114a and the second plane 4114b are non-coplanar congruent triangles. When the electronic device 100 is dropped or impacted, the adhesive force between the first plane 4114a and the first surface 4125c is equal to the adhesive force between the second plane 4114b and the first surface 4125c, so that the stress between the prism 411 and the carrier 412 can be evenly distributed across all areas of the first side surface 4114. Furthermore, since the first plane 4114a and the second plane 4114b are non-coplanar, a protrusion or depression is formed at the intersection of the first plane 4114a and the second plane 4114b. The receiving groove 4121 of the carrier 412 forms an inner wall surface adapted to the first side surface 4114, thus restricting the movement of the prism 411. The prism 411 may detach from the carrier 412 only when the stress direction between the prism 411 and the carrier 412 is parallel to the second intersection line L2. When the stress direction between prism 411 and carrier 412 intersects with the second intersection line L2, the structural features of prism 411 and carrier 412 restrict the movement of prism 411 relative to carrier 412. Therefore, the connection between prism 411 and carrier 412 in this application is not only achieved through the adhesive effect of the adhesive material, but also through their own structural features to further fix the connection of prism 411, thereby avoiding the problem of prism 411 loosening and falling off, and improving the user experience.

[0113] Please refer to the following: Figure 14 and Figure 15 , Figure 15 for Figure 7 The diagram shows a schematic representation of the prism 411 in the prism assembly 41 as viewed from an F3 angle. In some embodiments, the plane containing the light-incident surface 4111 intersects the plane containing the reflective surface 4113, forming a third intersection line L3. In the direction of the first intersection line L1, the distance from one end of the first plane 4114a near the first intersection line L1 to the end of the first plane 4114a near the third intersection line L3 is a first distance C1, which is greater than or equal to 0.8 mm and less than or equal to 1.5 mm. This includes the following situations: first, the length of the first intersection line L1 is greater than the length of the third intersection line L3; second, the length of the first intersection line L1 is less than the length of the third intersection line L3.

[0114] For the two scenarios described above, the structure of prism 411 has two types. First, there is a first included angle between the first plane 4114a and the second plane 4114b, with the opening of the first included angle facing the side of the first side 4114 away from the first surface 4125c, and the first included angle is less than 180 degrees. Alternatively, it can be understood that when the length of the first intersection line L1 is greater than the length of the third intersection line L3, the first side 4114 of prism 411 is convex outward from both sides towards the center, meaning the first side 4114 of prism 411 bulges towards the first sidewall 4125 of the carrier 412. Figure 15 The structure of prism 411 shown.

[0115] Second, please see Figure 16 , Figure 16 for Figure 7 The diagram shows another structural schematic of the prism 411 in the prism assembly 41 as viewed from angle F3. A first angle exists between the first plane 4114a and the second plane 4114b, with the opening of the first angle facing the side of the first side 4114 away from the first surface 4125c. This first angle is greater than 180 degrees. Alternatively, when the length of the first intersection line L1 is less than the length of the third intersection line L3, the first side 4114 of the prism 411 is concave from both sides towards the center; that is, the first side 4114 of the prism 411 is concave away from the first sidewall 4125 of the carrier 412. Correspondingly, the first sidewall 4125 of the carrier 412 is convex towards the first side 4114, so that the prism 411 fits the carrier 412.

[0116] For the two scenarios of prism 411 and carrier 412 mating, the difference in the first distance C1 needs to be within the aforementioned range. Specifically, the lower limit of 0.8 mm for the difference in the first distance C1 means that when the difference between the length of the first intersection line L1 and the length of the third intersection line L3 is greater than or equal to 0.8 mm, the first edge 4111a is inclined relative to the direction perpendicular to the first intersection line L1, and the first plane 4114a extends inclined accordingly. In this way, the first plane 4114a extends towards or away from the first reference surface M1 to form an inclined surface, thereby increasing the area of ​​the first side surface 4114 to increase the bonding strength between prism 411 and carrier 412. If the difference in the first distance C1 is less than 0.8 mm, the increased area of ​​the first side surface 4114 is small, and its effect on increasing the bonding area between prism 411 and carrier 412 is negligible. Therefore, the difference in the first distance C1 needs to have a lower limit.

[0117] The upper limit of 1.5 mm for the difference of the first distance C1 means that when the difference between the length of the first intersection line L1 and the length of the third intersection line L3 is less than or equal to 1.5 mm, the effective light transmission area of ​​the prism 411 can be guaranteed, and the problem of difficult processing caused by excessive tilt of the first side 4114 of the prism 411 can also be avoided.

[0118] In summary, when the difference of the first distance C1 is within the above range, it can ensure that the area of ​​the first plane 4114a is increased, thereby increasing the area of ​​the first side 4114, and thus increasing the bonding area between the prism 411 and the carrier 412; it can also ensure that the effective light transmission area of ​​the prism 411 is not affected, which facilitates the processing of the prism 411.

[0119] Similarly, the light-emitting surface 4112 intersects with the reflective surface 4113 to form a fifth intersection line L5. In the direction of the first intersection line L1, the distance from one end of the first plane 4114a near the first intersection line L1 to the end of the first plane 4114a near the fifth intersection line L5 is a first distance C1, which is greater than or equal to 0.8 mm and less than or equal to 1.5 mm. This also includes the following situations: first, the length of the first intersection line L1 is greater than the length of the fifth intersection line L5; second, the length of the first intersection line L1 is less than the length of the fifth intersection line L5. When the difference between the length of the first intersection line L1 and the length of the fifth intersection line L5 is within the above range, it can ensure that the area of ​​the second plane 4114b is increased, thereby increasing the area of ​​the first side surface 4114, and thus increasing the bonding area between the prism 411 and the carrier 412; it can also ensure that the effective light-transmitting area of ​​the prism 411 is not affected, which facilitates the processing of the prism 411.

[0120] Based on the above embodiments, the first plane 4114a and the second plane 4114b are symmetrically arranged with respect to the second intersection line L2, and the first side surface 4114 has an axisymmetric shape, which facilitates the processing of the first side surface 4114 and the assembly between the prism 411 and the carrier 412. The following description uses the symmetrical arrangement of the first plane 4114a and the second plane 4114b with respect to the second intersection line L2 as an example. However, this is only an exemplary description of this application. In some other embodiments, the first plane 4114a and the second plane 4114b may not be symmetrically arranged with respect to the second intersection line L2.

[0121] The following provides a further explanation from a manufacturing process perspective regarding the inclination of the first edge 4111a and the sloped surfaces of the first plane 4114a and the second plane 4114b. Please refer to [link / reference needed]. Figure 17 , Figure 17This is a schematic diagram illustrating the machining of the first side surface 4114 of the prism 411 provided in some embodiments of this application. The prism 411 of this application is machined on a blank 60, which can be a regular triangular prism shape. Specifically, the blank 60 can include three congruent and interconnected first surfaces 61, 62, and 3, and two parallel and congruent fourth and fifth surfaces 63 located at both ends of the first surface 61. The first, second, and third surfaces are parallelograms; in this embodiment, they can be rectangles. The fourth and fifth surfaces 63 and 64 can be triangles.

[0122] The blank 60 of the aforementioned prism 411 is cut along the dashed lines L61 and L62 to form the first side surface 4114. The first side surface 4114 includes a first plane 4114a and a second plane 4114b located on different planes. In this way, the originally planar fourth surface 63 is cut to form the curved first side surface 4114.

[0123] In summary, the inclination of the first edge 4111a and the inclination of the first plane 4114a and the second plane 4114b are relative to the blank 60 of the prism 411. Specifically, the first edge 4111a is inclination relative to the edge of the first surface 61 that connects to the fourth surface 63, and the first plane 4114a and the second plane 4114b are inclinations relative to the fourth surface 63.

[0124] Please return to the reference. Figure 15 This embodiment uses the example of a first intersecting line L1 having a longer length than a third intersecting line L3 for illustration. Specifically, the length of the first intersecting line L1 is greater than the length of the third intersecting line L3, and in the arrangement direction of the first intersecting line L1 and the third intersecting line L3, the orthographic projection of the third intersecting line L3 onto the first intersecting line L1 is located within both ends of the first intersecting line L1, and the first edge 4111a connects the first intersecting line L1 and the third intersecting line L3. That is, the end of the first plane 4114a near the first intersecting line L1 and the end of the first plane 4114a near the third intersecting line L3 are inclined towards the second side surface 4115.

[0125] Correspondingly, the first surface 4125c of the carrier 412 is a curved surface adapted to the first side surface 4114, that is, the first surface 4125c is concave from both sides towards the center away from the first side surface 4114. After the prism 411 is assembled into the receiving groove 4121 of the carrier 412, the first side surface 4114 and the first surface 4125c are in contact. Compared with the embodiment where both the first side surface 4114 and the first surface 4125c are planar, the first side surface 4114 and the first surface 4125c of this application are curved, which increases the contact area between the prism 411 and the carrier 412, thereby increasing the bonding strength between the prism 411 and the carrier 412, and improving the reliability of the connection between the prism 411 and the carrier 412. Furthermore, the structural characteristics of the prism 411 and the carrier 412 can also restrict the movement of the prism 411 relative to the carrier 412, further improving the reliability of the connection between the prism 411 and the carrier 412.

[0126] Similarly, the light-emitting surface 4112 intersects with the reflective surface 4113 to form a fifth intersection line L5. The length of the first intersection line L1 is greater than the length of the fifth intersection line L5. In the arrangement direction of the first intersection line L1 and the fifth intersection line L5, the orthographic projection of the fifth intersection line L5 on the first intersection line L1 is located inside both ends of the first intersection line L1. The second edge 4112a connects the first intersection line L1 and the fifth intersection line L5.

[0127] In some embodiments, the third plane 4125a intersects the fourth plane 4125b to form a fourth intersection line, the third plane 4125a has a fifth edge opposite to the fourth intersection line, and the fourth plane 4125b extends obliquely from the fourth intersection line to the fifth edge toward the prism 411.

[0128] Please see Figure 18 , Figure 18 This is a schematic diagram of the prism 411 structure provided in some embodiments and further embodiments of this application. In some embodiments, a first rounded corner structure R1 is provided at the first intersection line L1, and a first rounded corner structure R1 is provided at the second intersection line L2. The first rounded corner structure R1 can prevent stress concentration of the prism 411 at the first intersection line L1, thereby enhancing the structural strength of the prism 411. Similarly, a second rounded corner structure R2 can prevent stress concentration of the prism 411 at the second intersection, thereby enhancing the structural strength of the prism 411.

[0129] Correspondingly, a third rounded corner structure R3 corresponding to the second rounded corner structure R2 is also provided in the carrier 412. Specifically, the third rounded corner structure R3 is located at the fourth intersection line. The prism 411 is assembled into the receiving groove 4121 of the carrier 412, with the second rounded corner structure R2 and the third rounded corner structure R3 facing each other. Adhesive material is provided between the second rounded corner structure R2 and the third rounded corner structure R3, and the second rounded corner structure R2 and the third rounded corner structure R3 are bonded together by the adhesive material.

[0130] Please see Figure 19 , Figure 19 This is a schematic diagram of the structure of a carrier provided in some embodiments of this application. In some embodiments, to improve the bonding strength between the prism 411 and the carrier 412, more adhesive material is provided between the carrier 412 and the prism 411. The first sidewall has at least one first elongated groove 4127 and at least one second elongated groove 4128. When there are multiple first elongated grooves 4127, the multiple first elongated grooves 4127 are arranged in parallel and spaced apart, and the first elongated grooves 4127 are provided with first adhesive material. When there are multiple second elongated grooves 4128, the multiple second elongated grooves 4128 are arranged in parallel and spaced apart, and the second elongated grooves 4128 are provided with second adhesive material. The first elongated groove 4127 is disposed on a third plane 4125a, and the second elongated groove 4128 is disposed on a fourth plane 4125b.

[0131] In this way, the first long groove 4127 and the second long groove 4128 provide a larger accommodating space for the adhesive material, and the volume of the adhesive material between the prism 411 and the carrier 412 is increased, thereby enhancing the bonding strength between the prism 411 and the carrier 412, further improving the stability of the connection between the prism 411 and the carrier 412, and enhancing the user experience.

[0132] The extension directions of the first long groove 4127 and the second long groove 4128 are described in detail below. Through numerous experiments, the inventors have found that the adhesive strength of the adhesive strip is maximized when the extension direction of the strip's length is perpendicular to the stress direction. Based on this, there are two embodiments of the extension directions of the first long groove 4127 and the second long groove 4128.

[0133] First, the length direction of the first long groove 4127 is perpendicular to the length direction of the second long groove 4128. In one embodiment, the length direction of the first long groove 4127 is perpendicular to the extension direction of the first edge 4111a, and the extension direction of the second long groove 4128 is perpendicular to the extension direction of the second edge 4112a. In this way, when the electronic device 100 is dropped or impacted, the stress caused by relative movement between the prism 411 and the carrier 412 can be effectively prevented by the first adhesive material in the first long groove 4127 from detaching from the first opening 4122, and by the second adhesive material in the second long groove 4128 from detaching from the second opening 4123. This further improves the bonding strength between the prism 411 and the carrier 412, thereby enhancing the reliability of the connection between the prism 411 and the carrier 412.

[0134] second, Figure 20 This is a schematic diagram of the structure of a carrier provided in some embodiments of this application. The first plane 4114a intersects with the second plane 4114b to form a second intersection line L2. The length directions of the first long groove 4127 and the second long groove 4128 are both perpendicular to the second intersection line L2. As can be seen from the above, the first side surface 4114 is a curved surface, and the first sidewall 4125 is a curved surface adapted to the first side surface 4114. In this way, the prism 411 and the carrier 412 can rely on their own structural characteristics to restrict the movement of the prism 411 relative to the carrier 412. Only when the stress direction is parallel to the second intersection line L2 can the prism 411 possibly detach from the carrier 412. In this way, the length direction of the first long groove 4127 and the length direction of the second long groove 4128 are both perpendicular to the direction of the second intersection line L2, which can effectively resist the stress parallel to the second intersection line L2, thereby effectively preventing the prism 411 from detaching from the carrier 412, and further improving the reliability of the connection between the prism 411 and the carrier 412.

[0135] Furthermore, in the installation process of prism 411 and carrier 412, to facilitate the installation of prism 411 in carrier 412, the accommodating groove 4121 of carrier 412 is larger than the volume of prism 411, so as to reserve a certain gap for the installation of prism 411. To ensure high installation accuracy between prism 411 and carrier 412, prism 411 is first pre-installed into carrier 412 for precise positioning between prism 411 and carrier 412, and then prism 411 is fixed. The first long groove 4127 needs to penetrate the first sidewall 4125 and the second sidewall 4126 on one side of the first opening 4122, and the second long groove 4128 needs to penetrate the first sidewall 4125 and the second sidewall 4126 on one side of the second opening 4123. In this way, the bonding between the prism 411 and the carrier 412 can be achieved by injecting glue into the first long groove 4127 and the second long groove 4128 during the fixing process of the prism 411.

[0136] In summary, please refer to Figure 21 , Figure 21 This diagram illustrates the disengagement direction of the prism 411 under stress according to some embodiments of this application. After the prism 411 provided in this application is installed within the carrier 412, it can only disengage in the direction of the second intersection line L2, thus improving the stability of the connection between the prism 411 and the carrier 412. For a more detailed explanation of the beneficial effects of this application, please refer to [link to relevant documentation]. Figure 22 , Figure 22 This is a schematic diagram showing the direction of detachment of the prism 411 under stress in the prior art. The side of the prism 411 is flat, and the prism 411 can detach from the carrier 412 in any direction when under stress, resulting in an unstable fit between the prism 411 and the carrier 412.

[0137] In some embodiments, please refer to Figure 23 , Figure 23 This is a schematic diagram of the structure of the prism 411 provided in some embodiments of this application. In order to improve the refraction efficiency of the prism 411, a first light-absorbing layer 4116 is provided on the first side surface 4114 and the second side surface 4115 to prevent the light entering from the light-incident surface 4111 from being emitted from the first side surface 4114 and the second side surface 4115, and to ensure that the light entering from the light-incident surface 4111 is emitted from the light-exit surface 4112, thereby improving the refraction efficiency of the light.

[0138] It is understood that the above description only schematically illustrates some components included in the periscope camera module 40, and the actual shape, size, position, and structure of these components are not limited by the above description and the accompanying drawings. For example, in some embodiments, the periscope camera module 40 may also include a housing, or in other embodiments, the periscope camera module 40 may also include a filter 43.

[0139] In the description of this specification, specific features, structures, materials, or characteristics may be combined in any suitable manner in one or more embodiments or examples.

[0140] Finally, it should be noted that the above embodiments are only used to illustrate the technical solutions of this application, and are not intended to limit them. Although this application has been described in detail with reference to the foregoing embodiments, those skilled in the art should understand that modifications can still be made to the technical solutions described in the foregoing embodiments, or equivalent substitutions can be made to some of the technical features. Such modifications or substitutions do not cause the essence of the corresponding technical solutions to deviate from the spirit and scope of the technical solutions of the embodiments of this application.

Claims

1. A prism assembly, characterized in that, include: A prism includes an incident surface, an exit surface, a reflective surface, a first side surface and a second side surface surrounded by the incident surface, the exit surface and the reflective surface, with the first side surface and the second side surface facing away from each other. Light incident on the incident surface is reflected by the reflective surface and exits from the exit surface. The first side surface is curved and includes a first plane and a second plane. The plane containing the first plane intersects with the plane containing the second plane. The plane containing the incident surface intersects with the plane containing the exit surface to form a first intersection line. The plane containing the incident surface intersects with the plane containing the reflective surface to form a third intersection line. The length of the first intersecting line is greater than the length of the third intersecting line, and in the arrangement direction of the first and third intersecting lines, the orthographic projection of the third intersecting line onto the first intersecting line is located within both ends of the first intersecting line, and the end of the first plane closest to the first intersecting line, towards the second side, is inclined; or, the length of the first intersecting line is less than the length of the third intersecting line, and in the arrangement direction of the first and third intersecting lines, the orthographic projection of the third intersecting line onto the first intersecting line is located outside both ends of the first intersecting line, and the end of the first plane closest to the first intersecting line, towards the second side, is inclined; a carrier, the carrier including a receiving groove, the prism being received in the receiving groove, the receiving groove having a first sidewall, the first sidewall being located on the side facing the first side, the first sidewall having a first surface facing the first side, the first surface being curved, and the first surface being adapted to the first side.

2. The prism assembly according to claim 1, characterized in that, The first surface includes a third plane and a fourth plane. The plane in which the third plane is located intersects with the plane in which the fourth plane is located. The third plane faces the first plane, and the fourth plane faces the second plane.

3. The prism assembly according to claim 2, characterized in that, The plane containing the first plane intersects the plane containing the second plane to form a second intersection line, and the second intersection line is perpendicular to and intersects the first intersection line.

4. The prism assembly according to claim 3, characterized in that, In the direction of the first intersection line, the distance from one end of the first plane near the first intersection line to one end of the first plane near the third intersection line is the first distance, which is greater than or equal to 0.8 mm and less than or equal to 1.5 mm.

5. The prism assembly according to any one of claims 2-4, characterized in that, The first plane and the second plane have a first included angle, the opening of the first included angle is towards the side of the first side that is away from the first surface, and the first included angle is less than 180 degrees; The third plane and the fourth plane have a second included angle, the opening of the second included angle facing the first side, and the first included angle is less than 180 degrees.

6. The prism assembly according to claim 3 or 4, characterized in that, The first intersection line has a first rounded corner structure, the second intersection line has a second rounded corner structure, and the first sidewall has a third rounded corner structure opposite to the second rounded corner structure.

7. The prism assembly according to any one of claims 2-4, characterized in that, The first surface has at least one first elongated groove that is recessed away from the first side surface. A first adhesive material is disposed in the first elongated groove and is bonded between the inner surface of the first elongated groove and the first side surface.

8. The prism assembly according to claim 7, characterized in that, The plane where the first plane is located intersects with the plane where the second plane is located to form a second intersection line. There are multiple first long slots, and the multiple first long slots are parallel and spaced apart along the direction of the second intersection line. The length direction of the first long groove is perpendicular to the second intersecting line, a portion of the first long groove along its length direction is disposed on the third plane, and another portion of the first long groove along its length direction is disposed on the fourth plane.

9. The prism assembly according to claim 7, characterized in that, The first long groove is disposed on the third plane, and the first surface also has at least one second long groove recessed away from the first side surface. The second long groove is disposed on the fourth plane, and a second adhesive material is disposed in the second long groove. The second adhesive material is bonded between the inner surface of the second long groove and the first side surface. The length direction of the first long groove intersects with the length direction of the second long groove.

10. The prism assembly according to claim 9, characterized in that, The number of the first long slots is multiple, and the multiple first long slots are arranged in parallel and spaced apart along a direction perpendicular to the length of the first long slots; There are multiple second long slots, and the multiple second long slots are arranged in parallel and spaced apart along a direction perpendicular to the length of the second long slots.

11. The prism assembly according to claim 9 or 10, characterized in that, The plane containing the first plane intersects the plane containing the second plane to form a second intersection line. The length direction of the first long groove is perpendicular to the length direction of the second long groove. The angle bisector between the first long groove and the second long groove is the first reference line. The first reference line is parallel to the second intersection line.

12. The prism assembly according to any one of claims 1-4, characterized in that, The first side surface is provided with a first light-absorbing layer, and the reflective surface is provided with a second light-absorbing layer.

13. The prism assembly according to any one of claims 1-4, characterized in that, The carrier includes a base and a second sidewall opposite to the first sidewall, the base, the first sidewall and the second sidewall forming the receiving groove.

14. The prism assembly according to any one of claims 1-4, characterized in that, The second side is a curved surface; The carrier further includes a second sidewall opposite to the first sidewall, the second sidewall having a second surface facing the second sidewall, the second surface being curved and adapted to the second sidewall.

15. The prism assembly according to claim 14, characterized in that, The first side surface and the second side surface are symmetrically arranged with respect to the first reference surface. The light-incident surface and the light-exit surface intersect to form a first intersection line. The first reference surface passes through the midpoint of the first intersection line and is perpendicular to the reflective surface.

16. A periscope camera module, characterized in that, include: The prism assembly as described in any one of claims 1-15; A lens group, wherein the lens group is located on the side facing the light-emitting surface; An image sensor is located on the side of the lens group opposite to the prism assembly.

17. An electronic device, characterized in that, include: A housing having a light-transmitting window; A periscope camera module, wherein the periscope camera module is as described in claim 16, the periscope camera module is disposed within the housing, and the light-incident surface of the prism assembly is opposite to the light-transmitting window.

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