Lens, camera module and electronic equipment

Abstract

The utility model relates to the field of electronic equipment, in particular to a lens, a camera module and electronic equipment. The lens comprises a first lens and a lens barrel. The lens barrel is provided with a first end face facing the image side, the first lens is located on the side, facing the image side, of the first end face, and the first lens comprises an effective diameter area and a non-effective diameter area arranged around the effective diameter area; the first lens comprises a first surface, the first surface is close to the first end face, a first concave-convex structure is arranged in a non-effective-diameter area of the first surface, a first bonding piece is arranged on the surface of the first concave-convex structure, and the first lens is used for being connected with the first end face through the first bonding piece. Therefore, the problem of lens smudginess caused by glue overflow in the lens assembly process can be improved, and the imaging effect of the lens is improved.

Description

Technical Field

[0001] This application relates to the field of electronic devices, and more particularly to a lens, camera module, and electronic device. Background Technology

[0002] Most electronic devices today have camera modules for taking photos or videos. With technological advancements, users have increasingly higher demands for the imaging quality of camera modules. Camera modules typically consist of one or more lenses, each of which requires adhesive to bond and fix the lenses together, and between the lenses and the lens barrel, during the manufacturing process. However, during assembly, adhesive overflow can cause the lenses to become dirty, affecting image quality. Utility Model Content

[0003] The application provides a lens, camera module, and electronic device that can reduce the dirt problem caused by glue overflow during lens assembly and improve the lens imaging effect.

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

[0005] In a first aspect, a lens is provided, comprising: a first lens and a lens barrel; the lens barrel having a first end face facing the image side, the first lens being located on the image side side of the first end face, the first lens including an effective diameter region and a non-effective diameter region disposed around the effective diameter region; the first lens including a first surface close to the first end face, wherein the non-effective diameter region of the first surface is provided with a first concave-convex structure, the surface of the first concave-convex structure is provided with a first adhesive member, and the first lens is used to connect to the first end face through the first adhesive member.

[0006] In this way, during the assembly of the lens barrel and the first lens, the first concave-convex structure can prevent glue from overflowing from the non-effective diameter area of ​​the first surface to the effective diameter area of ​​the first surface, reducing the contamination problem caused by glue overflow during lens assembly and improving the lens's imaging effect. Simultaneously, the first concave-convex structure increases the contact area between the first adhesive component and the first surface, improving the fixing effect between the first lens and the lens barrel, which is beneficial for further reducing the lens size.

[0007] In one possible implementation of the first aspect, a first concave-convex structure is disposed around the effective diameter region of the first lens to block adhesive overflow from the non-effective diameter region of the first surface to the effective diameter region of the first surface during lens assembly.

[0008] In one possible implementation of the first aspect, the first concave-convex structure includes a first groove extending from the first surface into the interior of the first lens. This allows adhesive to flow along the first surface and be partially stored in the first groove during assembly, increasing the amount of adhesive on the first bonding element and improving the fixation between the first lens and the lens barrel. Simultaneously, the adhesive flowing into the first groove a1 is constrained by the groove, increasing the lateral adhesive force during adhesive flow and hindering its flow on the first surface. This alleviates the problem of adhesive overflow on the first lens, improving the appearance and image quality of the lens 31.

[0009] In one possible implementation of the first aspect, the first concave-convex structure includes a retaining wall that protrudes from the first surface. This allows the first concave-convex structure to be formed without redesigning the thickness of the first lens, improving the aforementioned glue overflow problem while also increasing the design space for the first concave-convex structure.

[0010] In one possible implementation of the first aspect, multiple baffles are provided, with two adjacent baffles and the first surface forming a second groove. In this way, during assembly, as the adhesive flows from the non-effective diameter region of the first surface to the effective diameter region, not only do the baffles block the adhesive, but the second groove also stores the adhesive during the flow, thereby further improving the mitigation of the adhesive overflow problem.

[0011] In one possible implementation of the first aspect, the number of retaining walls is one, which simplifies the manufacturing process.

[0012] In one possible implementation of the first aspect, a second concave-convex structure is provided on the first end face, the second concave-convex structure being opposite to the first concave-convex structure. Thus, the first and second concave-convex structures together block adhesive overflow into the effective diameter area of ​​the first surface during assembly, further reducing contamination caused by adhesive overflow during lens assembly and improving the lens's imaging performance. Simultaneously, the cooperation of the first and second concave-convex structures increases the contact area between the first adhesive component and both the first end face and the first surface, further improving the fixation effect between the first lens and the lens barrel.

[0013] In one possible implementation of the first aspect, the first adhesive component is formed by dispensing adhesive to reduce molding difficulty.

[0014] In one possible implementation of the first aspect, the first adhesive component includes: a first portion and a second portion connected together. The first portion is disposed within the area enclosed by the first concave-convex structure and the first surface, and the second portion is disposed on the side of the first portion facing the object side. The cross-sectional dimension of the second portion is larger than that of the first portion. This increases the adhesive area and ensures the connection effect between the first lens and the lens barrel.

[0015] In one possible implementation of the first aspect, the longitudinal cross-sectional shape of the first part includes: square, arc-shaped, triangular, T-shaped, dovetail-shaped, and trapezoidal. Different longitudinal cross-sectional shapes of the first part can improve the problem of adhesive overflow on the first lens and increase the contact area between the first adhesive and the first surface, thereby improving the fixing effect between the first lens and the lens barrel. Specifically, the larger the inner surface area of ​​the first part, the larger the contact area between the first concave-convex structure and the first adhesive, resulting in a greater lateral adhesive force on the adhesive during assembly and a better mitigation effect on adhesive overflow.

[0016] In one possible implementation of the first aspect, the first concave-convex structure and the first lens are integrally molded by injection molding. This improves production efficiency.

[0017] In one possible implementation of the first aspect, the first uneven structure is formed by machining or etching. This improves machining accuracy.

[0018] In one possible implementation of the first aspect, the lens further includes a lens group, the lens barrel includes a receiving space, the lens group is disposed within the receiving space, the lens group includes a second lens and a third lens, the second lens is located on the side of the first lens facing the object side, the third lens is located on the side of the second lens facing the object side, and the third lens, the second lens, and the first lens are stacked along the optical axis; the second lens includes a second surface opposite to the third lens, the non-effective diameter region of the second surface is provided with a third concave-convex structure, the surface of the third concave-convex structure is provided with a second adhesive member, and the second lens is used to connect to the third lens through the second adhesive member.

[0019] In this way, during the assembly of the second and third lenses, the third concave-convex structure can block the glue overflowing from the non-effective diameter area of ​​the second surface to the effective diameter area of ​​the second surface, reducing the dirt caused by glue overflow during lens assembly and improving the lens's imaging effect. At the same time, the third concave-convex structure increases the contact area between the second adhesive and the second surface, improving the fixing effect between the second and third lenses, which is beneficial for further reducing the size of the lens.

[0020] In one possible implementation of the first aspect, the non-effective diameter region of the third surface is provided with a fourth concave-convex structure, the surface of the fourth concave-convex structure is provided with a second adhesive, and the third lens is used to connect to the second lens through the second adhesive.

[0021] Therefore, the third and fourth concave-convex structures work together to block adhesive overflow into the effective diameter area of ​​the lens group during assembly, further reducing contamination caused by adhesive overflow and improving the lens's imaging performance. Simultaneously, the cooperation of the third and fourth concave-convex structures increases the contact area between the second adhesive component and both the second and third surfaces, further enhancing the fixation effect between the second and third lenses.

[0022] Secondly, a lens is provided, comprising: a first lens and a lens barrel; the lens barrel has a first end face facing the image side, the first lens is located on the image-facing side of the first end face, and a second concave-convex structure is provided on the first end face, the surface of which is provided with a third adhesive member. In this way, during the assembly of the lens barrel and the first lens, the second concave-convex structure can block adhesive overflow in the effective diameter area facing the first surface, thereby mitigating the problem of dirt caused by adhesive overflow during lens assembly and improving the lens's imaging effect.

[0023] Thirdly, a lens is provided, comprising: a lens group and a lens barrel; the lens barrel includes a receiving space, the lens group is disposed within the receiving space, the lens group includes a second lens and a third lens, the second lens is located on the object-side side of the first lens, the third lens is located on the object-side side of the second lens, and the third lens and the second lens are stacked along the optical axis; the second lens includes a second surface opposite to the third lens, a third concave-convex structure is provided in the non-effective diameter region of the second surface, a second adhesive member is provided on the surface of the third concave-convex structure, and the second lens is used to connect to the third lens through the second adhesive member.

[0024] In this way, during the assembly of the second and third lenses, the third concave-convex structure can block the glue overflowing from the non-effective diameter area of ​​the second surface to the effective diameter area of ​​the second surface, reducing the dirt caused by glue overflow during lens assembly and improving the lens's imaging effect. At the same time, the third concave-convex structure increases the contact area between the second adhesive and the second surface, improving the fixing effect between the second and third lenses, which is beneficial for further reducing the size of the lens.

[0025] Fourthly, a lens is provided, comprising: a lens group and a lens barrel; the lens barrel includes a receiving space, the lens group is disposed within the receiving space, the lens group includes a second lens and a third lens, the second lens is located on the object-side side of the first lens, the third lens is located on the object-side side of the second lens, and the third lens and the second lens are stacked along the optical axis; the third lens includes a third surface opposite to the second lens, a fourth concave-convex structure is provided in the non-effective diameter region of the third surface, a fourth adhesive member is provided on the surface of the fourth concave-convex structure, and the third lens is used to connect to the second lens through the second adhesive member.

[0026] In this way, during the assembly of the second and third lenses, the fourth concave-convex structure can block the glue overflowing from the non-effective diameter area of ​​the third surface to the effective diameter area of ​​the third surface, reducing the dirt caused by glue overflow during lens assembly and improving the lens's imaging effect. At the same time, the fourth concave-convex structure increases the contact area between the second adhesive component and the third surface, improving the fixing effect between the second and third lenses and facilitating further reduction in lens size.

[0027] Fifthly, this application provides a camera module, including: a lens and a photosensitive chip as described in any of the embodiments above. The photosensitive chip is disposed on the image side of the lens.

[0028] Sixthly, this application provides an electronic device, including: a housing and a camera module as described in the fifth aspect.

[0029] Since the camera module of the fifth aspect and the electronic device of the sixth aspect provided in the embodiments of this application include lenses of any of the above technical solutions, they can solve the same technical problems and achieve the same technical effects. Attached Figure Description

[0030] Figure 1 Perspective views of electronic devices provided in some embodiments of this application;

[0031] Figure 2 for Figure 1 An exploded view of the electronic device shown.

[0032] Figure 3 for Figure 1 The diagram shown is an exploded view of the camera module in the electronic device.

[0033] Figure 4 for Figure 3 The diagram shown illustrates the structure of the lens in the camera module.

[0034] Figure 5 for Figure 4 The diagram shows a structural schematic of a lens cut along line A0-A0.

[0035] Figure 6 for Figure 5 The diagram shows the structure of the first lens in the lens shown.

[0036] Figure 7 for Figure 5 A magnified view of a portion of region A in the lens shown;

[0037] Figure 8 A cross-sectional view of a lens provided in other embodiments of this application on a plane parallel to the optical axis;

[0038] Figure 9 for Figure 8 A magnified view of region B in the lens shown;

[0039] Figure 10 A longitudinal cross-sectional schematic diagram of the first concave-convex structure in a lens provided for some embodiments of this application;

[0040] Figure 11 A longitudinal cross-sectional schematic diagram of the first concave-convex structure in a lens provided in some embodiments of this application;

[0041] Figure 12 This is a longitudinal cross-sectional schematic diagram of the first concave-convex structure in a lens provided in some other embodiments of this application;

[0042] Figure 13 A longitudinal cross-sectional schematic diagram of the first concave-convex structure in a lens provided for other embodiments of this application;

[0043] Figure 14 A cross-sectional schematic diagram of the first lens in a lens provided in other embodiments of this application on a plane parallel to the first surface;

[0044] Figure 15 The simulation results of the transverse shear force-displacement of the first adhesive component when the first groove is set are shown in the figure.

[0045] Figure 16 A longitudinal cross-sectional schematic diagram of the first concave-convex structure in a lens provided in some other embodiments of this application;

[0046] Figure 17 A partial cross-sectional schematic diagram of a lens on a plane perpendicular to the first surface, provided for other embodiments of this application;

[0047] Figure 18 A partial cross-sectional schematic diagram of a lens on a plane perpendicular to the first surface, provided for other embodiments of this application;

[0048] Figure 19 A partial cross-sectional schematic diagram of a lens on a plane perpendicular to the first surface, provided for other embodiments of this application;

[0049] Figure 20 for Figure 8 A magnified view of a portion of region C in the lens shown.

[0050] Figure label:

[0051] Electronic device 100; screen 10; light-transmitting cover 11; display screen 12; housing 20; back cover 21; frame 22; middle plate 23;

[0052] Camera module 30; lens 31; lens barrel 311; first end face 311a; second concave-convex structure 315; third groove a3; second retaining wall 315a; third retaining wall 315b;

[0053] Second end face 311b; Accommodation space 311c;

[0054] First lens 3121; first surface m1; first concave-convex structure 314; first groove a1; barrier 314a; second groove a2;

[0055] Lens group 312; second lens 3122; second surface m2; third concave-convex structure 316; fourth groove a4;

[0056] Third lens 3123; Third surface m3; Fourth concave-convex structure 317; Fifth groove a5;

[0057] Adhesive component 313; First adhesive component 3131; First part 3131a; Second part 3131b; Second adhesive component 3132;

[0058] Image sensor 32;

[0059] Motherboard 40; Camera decorative cover 50; Light-transmitting window 51; Mounting port 60. Detailed Implementation

[0060] In the embodiments of this application, the terms "exemplarily" or "for example" are used to indicate examples, illustrations, or explanations. Any embodiment or design described as "exemplarily" 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 "exemplarily" or "for example" is intended to present the relevant concepts in a specific manner.

[0061] In the description of the embodiments of this application, the term "and / or" refers to and covers any and all possible combinations of one or more of the associated listed items. The term "and / or" describes an association relationship between related objects, indicating that three relationships can exist. For example, A and / or B can represent: A existing alone, A and B existing simultaneously, and B existing alone. Additionally, the character " / " in this application generally indicates that the preceding and following related objects have an "or" relationship.

[0062] In the description of the embodiments of this application, unless otherwise expressly 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.

[0063] In the description of embodiments of this application, the terms "comprising," "including," or any other variations thereof are intended to cover non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements includes not only those elements but also other elements not expressly listed, or elements inherent to such a process, method, article, or apparatus. Without further limitations, an element defined by the phrase "comprising one..." does not exclude the presence of other identical elements in the process, method, article, or apparatus that includes that element. Without further limitations, an element defined by the phrase "comprising one..." does not exclude the presence of other identical elements in the process, method, article, or apparatus that includes that element.

[0064] In the description of embodiments of this application, the terms "vertical" and "parallel" include the described situation and situations similar to the described situation, the range of which is within an acceptable deviation range, which 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 approximately parallelism, wherein an acceptable deviation range for approximately parallelism may be, for example, an angular deviation within 5°, 8°, or 10°. "Vertical" includes absolute verticalism and approximately verticalism, wherein an acceptable deviation range for approximately verticalism may also be, for example, a deviation within 5°, 8°, or 10°.

[0065] This application provides an electronic device, which is a type of electronic device with a shooting function. For example, the electronic device can be a portable electronic device or other suitable electronic device. For instance, the electronic device can be a mobile phone, tablet computer, laptop computer, personal digital assistant (PDA), camera, personal computer, laptop computer, in-vehicle equipment, wearable device, augmented reality (AR) glasses, AR headset, virtual reality (VR) glasses, or VR headset, etc.

[0066] 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 The diagram shows an exploded view of the electronic device 100. In this embodiment, the electronic device 100 is a tablet phone. The electronic device 100 includes a screen 10, a housing 20, a camera module 30, a motherboard 40, and a camera decorative cover 50.

[0067] Understandable Figure 1 and Figure 2 The illustration schematically shows some components included in the electronic device 100, the actual shape, size, location, and construction of which are not affected by the actual shape, size, location, and construction of the components. 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.

[0068] Screen 10 is used to display images, videos, etc. Screen 10 includes a light-transmitting cover plate 11 and a display screen 12. The light-transmitting cover plate 11 and the display screen 12 are stacked and fixedly connected. The light-transmitting cover plate 11 can be used to protect the display screen 12 and prevent dust. The material of the light-transmitting cover plate 11 includes, but is not limited to, glass. The display screen 12 can be a flexible display screen or a rigid display screen.

[0069] The housing 20 is used to protect the internal electronic components of the electronic device 100. The housing 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 11, and is stacked with the light-transmitting cover 11 and the display screen 12. The frame 22 is located between the back cover 21 and the light-transmitting cover 11, and is fixed to the back cover 21.

[0070] For example, the frame 22 can be fixedly connected to the back cover 21 by adhesive. Alternatively, the frame 22 and the back cover 21 can be integrally formed, i.e., the frame 22 and the back cover 21 are a single structure. The light-transmitting cover 11 is fixed to the frame 22 by adhesive. The light-transmitting cover 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.

[0071] For ease of description below, an XYZ coordinate system is established, defining the stacking direction of the light-transmitting cover 11, display screen 12, and back cover 21 within the electronic device 100 (i.e., the direction of the central axis of the camera module 30) as the Z-axis. The plane on which the light-transmitting cover 11, display screen 12, or back cover 21 lies is the XY plane. For example, the width direction of the electronic device 100 is the X-axis, and the length direction is the Y-axis. It is understood that the coordinate system settings of the electronic device 100 can be flexibly configured according to actual needs.

[0072] The camera module 30 is used to capture photos / videos. The camera module 30 is fixed within the internal housing of the electronic device 100. In some embodiments, please refer to... Figure 2 The electronic device 100 also includes a middle plate 23. The middle plate 23 is fixed to the inner surface of the frame 22 around its circumference. The middle plate 23 serves as the structural "skeleton" of the electronic device 100, and the camera module 30 can be fixed to the middle plate 23 by means of threaded connection, snap-fit, welding, etc. In some other embodiments, the camera module 30 can be fixed to other structures of the electronic device 100, such as the back cover 21 or the frame 22, by means of threaded connection, snap-fit, welding, etc.

[0073] The camera module 30 can be used as a rear camera module or a front camera module.

[0074] In some embodiments, please continue reading Figure 2 The camera module 30 is fixed to the surface of the middle plate 23 near the back cover 21. The light-incident surface of the camera module 30 faces the back cover 21. The back cover 21 has a mounting opening 60. A camera decorative cover 50 covers and is fixed to the mounting opening 60. The camera decorative cover 50 is used to protect the camera module 30. The camera decorative cover 50 has a light-transmitting window 51. The light-transmitting window 51 allows light from the scene to pass through and enter the light-incident surface of the camera module 30. In this embodiment, the camera module 30 is used as a rear camera module 30 of the electronic device 100. For example, the camera module 30 can be used as a rear main camera module, a wide-angle camera module, or a telephoto camera module.

[0075] In some other embodiments, the camera module 30 may also be fixed to the surface of the middle plate 23 near the light-transmitting cover plate 11. The light-incident surface of the camera module 30 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 camera module 30. In this way, the camera module 30 serves as a front-facing camera module of the electronic device 100.

[0076] The motherboard 40 is fixed within the internal cavity of the electronic device 100. For example, the motherboard 40 can be fixed to the middle plate 23 by means of threaded connection, snap-fit, or other means. When the electronic device 100 does not include the middle plate 23, the motherboard 40 can also be fixed to the surface of the display screen 12 near the back cover 21 by means of threaded connection, snap-fit, or other means.

[0077] For an example, please refer to Figure 3 , Figure 3 for Figure 1 The diagram shows an exploded view of the camera module 30 in the electronic device 100. The camera module 30 includes a lens 31, a drive motor (not shown), and a photosensitive chip 32. The photosensitive chip 32 is located on the image side of the lens 31. After the light from the scene passes through the lens 31 and forms an image, the photosensitive chip 32 converts the image signal into an electrical signal for output.

[0078] In the embodiments described above and below, the side facing the object being photographed along the optical axis is defined as the "object side"; the side facing away from the object, i.e., the side facing the image sensor, along the optical axis is defined as the "image side". Here, the optical axis refers to a ray of light that passes perpendicularly through the center of an ideal lens.

[0079] Understandable Figure 3 The diagram only schematically illustrates some of the components included in the camera module 30. The actual shape, size, position, and structure of these components are not subject to change. Figure 3 Restrictions.

[0080] Please see Figure 4 , Figure 4 for Figure 3 The diagram shows the structure of the lens 31 in the camera module 30. The lens 31 is used to image the subject. For example, the lens 31 can be a vertical lens, with its optical axis extending along the Z-axis. The lens 31 can also be a periscope lens, with its optical axis parallel to the XY plane. The embodiments in this application are described using a vertical lens as an example, but this should not be considered a specific limitation of this application.

[0081] Please see Figure 5 , Figure 5 for Figure 4The diagram shows a structural schematic of a lens 31 cut along line A0-A0. The lens 31 includes a lens barrel 311 and a first lens 3121.

[0082] Lens barrel 311 is used to fix and protect the lens. Lens barrel 311 has a cylindrical structure. Lens barrel 311 includes a first end face 311a and a second end face 311b that are opposite to each other. The first end face 311a is located at the image-side end of lens barrel 311, and the second end face 311b is located at the object-side end of lens barrel 311. Light from the scene enters the lens 31 from the second end face 311b side and exits from the first end face 311a side.

[0083] The first lens 3121 is located on the side of the first end face 311a facing the image side, and the first lens 3121 and the lens barrel 311 are stacked along the optical axis.

[0084] In some embodiments, the lens 31 includes a lens barrel 311 and a lens group 312. The lens barrel 311 includes a receiving space 311c, and the lens group 312 is disposed within the receiving space 311c. The lens group 312 includes at least one optical lens. When the lens group 312 includes multiple optical lenses, the multiple optical lenses are stacked along the optical axis. By designing the structural composition of the lens group 312 and the shape and size of each optical lens, lenses with different characteristics such as standard, wide-angle, and telephoto can be obtained.

[0085] For examples, please continue reading. Figure 5 Lens group 312 includes a second lens 3122 and a third lens 3123. The second lens 3122 and the third lens 3123 are located within the accommodating space 311c. For example, the second lens 3122 is located on the object-side side of the first end face 311a, and the third lens 3123 is located on the object-side side of the second lens 3122, thereby stacking the second lens 3122 and the third lens 3123 along the optical axis direction within the accommodating space 311c.

[0086] It is understood that in other embodiments, lens 31 includes both a first lens 3121 and a lens group 312.

[0087] Figure 5 The illustrated embodiment is based on the case where lens 31 includes both a first lens 3121 and a lens group 312, and lens group 312 includes a second lens 3122 and a third lens 3123. In this case, the second lens 3122 is located on the side of the first lens 3121 facing the object side, and the third lens 3123 is located on the side of the second lens 3122 facing the object side, thereby stacking the first lens 3121, the second lens 3122, and the third lens 3123 along the optical axis.

[0088] The structure of each lens in the lens group 312 will be described below, taking the first lens 3121 as an example.

[0089] Please see Figure 6 , Figure 6 for Figure 5 The schematic diagram shows the structure of the first lens 3121 in the lens 31. The first lens 3121 includes an effective diameter region and a non-effective diameter region surrounding the effective diameter region. The non-effective diameter region of the first lens 3121 can be located at least a portion of the edge of the effective diameter region of the first lens 3121, or it can be located around the edge of the effective diameter region of the first lens 3121. Figure 6 The first lens 3121 shown is illustrated with an example of a non-effective diameter region surrounding the edge of the effective diameter region. For example, the effective diameter region of the first lens 3121 is located in the central region of the first lens 3121, as shown in region H, facilitating the passage of light from the object being photographed. The non-effective diameter region of the first lens 3121 is located in the edge region of the first lens 3121, as shown in region K, and is used to mount the first lens 3121.

[0090] It should be noted that the "effective diameter area" refers to the effective portion of the optical lens used for optical imaging during the shooting process, while the "non-effective diameter area" refers to the portion of the optical lens that does not affect the optical imaging effect during the shooting process. Each optical lens in lens group 312 mentioned later can be correspondingly divided into effective diameter area and non-effective diameter area, and their corresponding functional definitions are the same, which will not be elaborated further below.

[0091] The structures of the second lens 3122 and the third lens 3123 are the same as those of the first lens 3121.

[0092] Please return to the reference. Figure 5 The lens 31 also includes an adhesive 313 for fixing the lens barrel 311 and the lens group 312, and the lenses within the lens group 312.

[0093] The adhesive 313 includes a first adhesive 3131 and a second adhesive 3132.

[0094] Please continue reading. Figure 5 and combined Figure 6 The first lens 3121 includes a first surface m1. The first surface m1 is the end face of the first lens 3121 near the first end face 311a. A first adhesive member 3131 is provided in the non-effective diameter area of ​​the first surface m1, and the first lens 3121 is connected to the first end face 311a of the lens barrel 311 through the first adhesive member 3131.

[0095] The second lens 3122 includes a second surface m2, which is an end face opposite to the third lens 3123 in the optical axis direction. A second adhesive member 3132 is provided in the non-effective diameter region of the second surface m2, and the second lens 3122 is connected to the third lens 3123 through the second adhesive member 3132.

[0096] The first adhesive component 3131 can be a snap-fit ​​structure, a threaded connection structure, or adhesive. For example, the first adhesive component 3131 is adhesive. Because adhesive occupies less space, it ensures the compact structure of the lens 31, which is beneficial for achieving a miniaturized lens design.

[0097] In some embodiments, the material of the first adhesive 3131 is a UV adhesive (ultraviolet-curing adhesive). This UV adhesive can undergo a cross-linking reaction and complete curing under irradiation in a specific UV wavelength band. In another embodiment, the material of the first adhesive 3131 is an AA process adhesive. This AA process adhesive is an adhesive with both UV curing and heat curing mechanisms. This application uses a UV adhesive as an example to illustrate the use of the first adhesive 3131.

[0098] This application does not limit the molding method of the first adhesive component 3131. In some embodiments, the adhesive component 3131 can be molded by dispensing to reduce the molding difficulty.

[0099] In some embodiments, when preparing the first adhesive component 3131, adhesive can be applied or dripped onto the non-effective diameter area of ​​the first surface m1. Then, the lens barrel 311 is moved to the object side of the first surface m1, with the first end face 311a facing the non-effective diameter area of ​​the first surface m1 along the optical axis. This prevents the lens barrel 311 from obscuring the effective diameter area of ​​the first lens 3121 and affecting the imaging effect of the lens 31. Next, the first end face 311a is moved towards the first surface m1 in a direction parallel to the optical axis to press the adhesive on the first surface m1, completing the assembly of the lens barrel 311 and the first lens 3121. After assembly, an ultraviolet curing lamp is used to irradiate the adhesive on the first surface m1, causing the adhesive to cure and form the first adhesive component 3131.

[0100] It is understandable that the preparation of the first adhesive component 3131 is independent of the assembly sequence between the components to be joined (lens barrel 311 and first lens 3121) on both sides during the dispensing process. That is, when preparing the first adhesive component 3131, the adhesive can be applied or dripped onto the non-effective diameter area of ​​the first surface m1 first, and then the lens barrel 311 can be moved to the object side of the first surface; or the adhesive can be applied or dripped onto the first end face 311a first, and then the first lens 3121 can be moved to the side of the first end face 311a facing the image side, as long as the first end face 311a is opposite to the non-effective diameter area of ​​the first surface m1, and then the lens barrel 311 and the first lens 3121 can be assembled.

[0101] This application does not limit the assembly tools for lens 31. For example, a robotic arm can be used to move and align the lens barrel 311 and the first lens 3121 during the assembly process.

[0102] In some embodiments, the material and molding method of the second adhesive member 3132 may be the same as those of the first adhesive member 3131. In other embodiments, the material and molding method of the second adhesive member 3132 may also be different from those of the first adhesive member 3131. This application uses the case where the material and molding method of the second adhesive member 3132 are the same as those of the first adhesive member 3131 as an example for illustration.

[0103] Similarly, the preparation of the second adhesive 3132 is not related to the assembly order between the two parts to be joined (second lens 3122 and third lens 3123) on both sides during the dispensing process, as long as the ineffective area of ​​the second lens 3122 is opposite to the ineffective diameter area of ​​the third lens 3123.

[0104] Please see Figure 7 , Figure 7 for Figure 5 The diagram shows a partially enlarged view of region A in lens 31. Generally, the non-effective diameter region of the first surface m1 can be, for example, a plane. This plane can refer to a surface where surface roughness is negligible. That is, the bonding force between the first lens 3121 and the lens barrel 311 mainly comes from the fixing part (i.e., the first adhesive 3131) between the two substrate parts. Since the first adhesive 3131 is a low-viscosity, high-flow liquid adhesive before curing, during assembly, when the lens barrel 311 and the first lens 3121 are pressed together, the liquid adhesive will overflow from the non-effective diameter region of the first surface m1 to the effective diameter region of the first surface m1, such as... Figure 7 As indicated by the middle arrow, the first lens 3121 becomes dirty, affecting the product's appearance and imaging effect.

[0105] Similarly, when assembling the second lens 3122 and the third lens 3123, the uncured second adhesive 3132 will also cause the aforementioned glue overflow problem in the second lens 3122 and the third lens 3123.

[0106] In actual production, the aforementioned glue overflow problem is generally solved by increasing the radial dimension of the non-effective diameter area of ​​the lens to allow space for the flow of liquid glue during assembly. However, with technological advancements and the continuous trend towards thinner and lighter electronic devices, the requirements for lens size are becoming increasingly stringent. The commonly used method of increasing the radial dimension of the non-effective diameter area of ​​the lens to solve the glue overflow problem during lens assembly results in a larger radial dimension, which is incompatible with the need for further reduction in lens size.

[0107] Therefore, this application provides another lens 31 that solves the aforementioned glue overflow problem without increasing the radial dimension of the lens. Please refer to... Figure 8 and Figure 9 , Figure 8 This is a cross-sectional view of the lens 31 in a plane parallel to the optical axis, provided for other embodiments of this application. Figure 9 for Figure 8 A magnified view of region B in lens 31 is shown. A first concave-convex structure 314 is provided in the non-effective diameter region of the first surface m1.

[0108] The surface of the first concave-convex structure 314 is provided with a first adhesive 3131, that is, the surface of the first concave-convex structure 314 facing the object side has a first adhesive 3131.

[0109] It should be noted that the first concave-convex structure 314 refers to the solid structure located within the non-effective diameter region of the first lens 3121, which acts as a barrier against the overflow of adhesive towards the effective diameter region of the first surface m1 during the molding process of the first adhesive 3131. Figure 9 The first concave-convex structure 314 is schematically represented by a dashed box.

[0110] During the assembly of the lens barrel 311 and the first lens 3121, the first concave-convex structure 314 can prevent glue from overflowing from the non-effective diameter area of ​​the first surface m1 to the effective diameter area of ​​the first surface m1, thereby reducing the dirt caused by glue overflow during lens 31 assembly and improving the imaging effect of the lens 31. At the same time, the first concave-convex structure 314 increases the contact area between the first adhesive 3131 and the first surface m1, improving the fixing effect between the first lens 3121 and the lens barrel 311, which is conducive to further reducing the size of the lens 31.

[0111] In some embodiments, please continue reading Figure 9The first adhesive component 3131 includes a first portion 3131a and a second portion 3131b connected together. The first portion 3131a is disposed within the area enclosed by the first concave-convex structure 314 and the first surface m1 and is engaged with the object-side surface of the first concave-convex structure 314. The second portion 3131b is disposed on the object-side surface of the first portion 3131a and is engaged with the first end face 311a. In a plane parallel to the optical axis, the cross-sectional dimension of the second portion 3131b is larger than the cross-sectional dimension of the first portion 3131a. That is, the area of ​​the first adhesive component 3131 and the first surface m1 is larger than the contact area between the first adhesive component 3131 and the first concave-convex structure 314, which helps to increase the adhesive area and ensure the connection effect between the first lens 3121 and the lens barrel 311.

[0112] On a plane parallel to the optical axis, the longitudinal cross-sectional shape of the first part 3131a can be selected according to the molding method and fixing requirements. Different longitudinal cross-sectional shapes of the first part 3131a correspond to different longitudinal cross-sectional shapes of the first concave-convex structure 314.

[0113] In some embodiments, such as Figure 9 As shown, the longitudinal section shape of the first part 3131a can be square.

[0114] In some embodiments, such as Figure 10 As shown, Figure 10 This is a longitudinal cross-sectional schematic diagram of the first concave-convex structure 314 in the lens 31 provided in some embodiments of this application. The longitudinal cross-sectional shape of the first part 3131a can be an arc shape.

[0115] In some embodiments, such as Figure 11 As shown, Figure 11 This is a longitudinal cross-sectional view of the first concave-convex structure 314 in the lens 31 provided in some embodiments of this application. The longitudinal cross-sectional shape of the first part 3131a can be triangular.

[0116] In some embodiments, such as Figure 12 As shown, Figure 12 This is a longitudinal cross-sectional view of the first concave-convex structure 314 in the lens 31 provided in some other embodiments of this application. The longitudinal cross-sectional shape of the first part 3131a can be trapezoidal.

[0117] In some embodiments, such as Figure 13 As shown, Figure 13 This is a longitudinal cross-sectional view of the first concave-convex structure 314 in the lens 31 provided in some other embodiments of this application. The longitudinal cross-sectional shape of the first part 3131a can be a dovetail groove.

[0118] In some embodiments, the longitudinal cross-sectional shape of the first portion 3131a may be T-shaped.

[0119] The first portion 3131a with different longitudinal cross-sectional shapes can improve the problem of adhesive overflow on the first lens 3121 and increase the contact area between the first adhesive 3131 and the first surface m1, thereby improving the fixing effect between the first lens 3121 and the lens barrel 311. Specifically, the larger the inner surface area of ​​the first portion 3131a, the larger the contact area between the first concave-convex structure 314 and the first adhesive 3131, resulting in a greater lateral adhesive force on the adhesive during assembly and a better mitigation effect on adhesive overflow.

[0120] For example, when the longitudinal section of the first part 3131a is set to a dovetail shape, the lateral adhesive force on the adhesive is slightly greater than when the longitudinal section of the first part 3131a is set to a square shape. Similarly, when the longitudinal section of the first part 3131a is set to a trapezoidal shape, the lateral adhesive force on the adhesive is slightly greater than when the longitudinal section of the first part 3131a is set to a triangular shape. This application increases the inner wall area of ​​the first part 3131a by adjusting the shape of the longitudinal section of the first concave-convex structure 314, thereby increasing the lateral adhesive force on the adhesive from the first concave-convex structure 314 and improving the flow resistance effect of the adhesive.

[0121] This application does not limit the molding method of the first concave-convex structure 314. A suitable molding method can be selected according to the actual working conditions.

[0122] In some embodiments, the first concave-convex structure 314 can be integrally formed by injection molding. For example, a corresponding injection mold can be designed specifically according to the shape of the first concave-convex structure 314, thereby improving production efficiency. For instance, a concave or convex structure corresponding to the first concave-convex structure 314 can be processed in the injection mold of the first lens 3121, and then integrally formed with the first lens 3121 by injection molding.

[0123] In other embodiments, the first concave-convex structure 314 can be formed by machining or etching. This improves machining accuracy. For example, after the first lens 3121 is injection molded, it can be further processed by machining (such as CNC milling), chemical etching, or other processes to form the first concave-convex structure 314.

[0124] In a direction parallel to the first surface m1, the first concave-convex structure 314 is arranged around the effective diameter region of the first lens 3121.

[0125] In some embodiments, the first concave-convex structure 314 is a plurality of segments, which are spaced apart on the non-effective diameter region of the first surface m1 to block the glue overflowing from the non-effective diameter region of the first surface m1 to the effective diameter region of the first surface m1 during the assembly of the lens 31.

[0126] In other embodiments, please refer to Figure 14 , Figure 14 This is a cross-sectional view of the first lens 3121 in the lens 31 provided in other embodiments of this application, on a plane parallel to the first surface m1. The first concave-convex structure 314 is an integral structure and is disposed around the effective diameter region of the first surface m1 on the non-effective diameter region. In this way, compared with the segmented type, the integral surrounding first concave-convex structure 314 can block more adhesive and further improve the blocking effect on overflowing adhesive.

[0127] In some embodiments, please refer back to the reference. Figure 9 The first concave-convex structure 314 includes a first groove a1. The first groove a1 extends from the first surface m1 into the interior of the first lens 3121. In this way, during the assembly process, the adhesive can flow along the first surface m1 and be partially stored in the first groove a1, which can increase the amount of adhesive in the first adhesive 3131 and improve the fixing effect between the first lens 3121 and the lens barrel 311.

[0128] At the same time, the glue flowing into the first groove a1 will be constrained by the first groove a1, which increases the lateral adhesive force during the glue flow process, thus hindering the flow of glue on the first surface m1. This can alleviate the glue overflow problem on the first lens 3121 and improve the appearance and imaging quality of the lens 31.

[0129] The number of first grooves a1 can be one or more, and this application does not limit this. In actual processing, the number of first grooves a1 can be adjusted according to different processing conditions.

[0130] This application presents an experimental simulation of the effect of the first groove a1 on the lateral adhesive force of the first adhesive component 3131. Please refer to [link / reference]. Figure 15 , Figure 15 This is a simulation result diagram of the lateral shear force-displacement of the first adhesive component 3131 when the first groove a1 is set. Line 1 corresponds to the first lens using... Figure 5 As shown in the image, lens 31, line 2 corresponds to the first lens using... Figure 11 The lens 31 corresponds to the first concave-convex structure 314 shown. Specifically, Figure 5 In the lens shown, the first surface m1 on the first lens 3121 and the first end face 311a on the lens barrel 311 are both planes. Figure 11 In the lens 31 corresponding to the first concave-convex structure 314 shown, the first end face 311a is a plane, and two first concave-convex structures 314 in the shape of triangles are provided on the first surface m1. The first concave-convex structure 314 is a first groove a1. The first groove a1 is an annular shape surrounding the effective area of ​​the first surface m1. The length and depth of the first groove a1 are both 0.1mm.

[0131] After the first adhesive component 3131 has solidified, the lens barrel 311 is fixed, and a force perpendicular to the optical axis is applied to the first lens 3121, gradually increasing until the first adhesive component 3131 fractures laterally. During the experiment, sensors are used to measure and read the lateral shear force and relative displacement on the first adhesive component 3131. Please refer to [further details omitted]. Figure 15 The x-axis represents the relative displacement between the two ends of the first adhesive component 3131 in the XY plane, and the y-axis represents the transverse shear force exerted on the first adhesive component 3131 by the first surface m1 and the first end face 311a, which is the transverse external force applied during the experiment. It can be understood that the transverse shear force exerted on the first adhesive component 3131 measured in the experiment is the lateral adhesive force provided by the first adhesive component 3131.

[0132] When the transverse shear force on the first adhesive component 3131 reaches its limit, the first adhesive component 3131 breaks, and the relative displacement increases sharply, such as... Figure 15 As shown, in Figure 5 In the lens 31 shown, the ultimate lateral shear force of the first adhesive member 3131 is 82N. Figure 11 In the lens 31 corresponding to the first concave-convex structure 314 shown, the ultimate lateral shear force of the first adhesive member 3131 is 100N. Therefore, when two first grooves a1, each 0.1mm in length and depth, are provided on the first surface m1 and form an annular effective area surrounding the first surface m1, the lateral adhesive force provided by the first adhesive member 3131 is increased by 22%.

[0133] In other embodiments, please refer to Figure 16 , Figure 16 This is a longitudinal cross-sectional view of the first concave-convex structure 314 in the lens 31 provided in some other embodiments of this application. The first concave-convex structure 314 includes a retaining wall 314a. For example, the retaining wall 314a protrudes from the first surface m1, that is, it protrudes from the first surface m1 to the side away from the first surface m1. In this way, the first concave-convex structure 314 can be formed without redesigning the thickness of the first lens 3121, which improves the above-mentioned glue overflow problem and also increases the design space of the first concave-convex structure 314.

[0134] The number of retaining walls 314a can be adjusted according to the processing accuracy of the processing equipment.

[0135] In some embodiments, the number of retaining walls 314a is one, which simplifies the manufacturing process.

[0136] For example, when making the first adhesive 3131, liquid adhesive can be dripped or applied to the outside of the retaining wall 314a to improve the effect of preventing adhesive from overflowing toward the effective diameter area of ​​the first surface m1. "Outside of the retaining wall 314a" here refers to the side of the first surface m1 located on the retaining wall 314a away from the effective diameter area of ​​the first lens 3121.

[0137] In other embodiments, the number of retaining walls 314a is multiple, such as... Figure 16 As shown, two adjacent retaining walls 314a and the first surface m1 form a second groove a2. In this way, during the assembly process, when the adhesive flows from the non-effective diameter area of ​​the first surface m1 to the effective diameter area of ​​the first surface m1, not only will the retaining walls 314a block the adhesive, but the second groove a2 will also store the adhesive during the flow, thereby further improving the mitigation effect on the adhesive overflow problem.

[0138] The above embodiment solves the problem of glue overflow during the assembly of the lens barrel 311 and the first lens 3121 by providing a first concave-convex structure 314 on the first surface m1 of the first lens 3121. It can be understood that a concave-convex structure can also be provided on the first end face 311a of the lens barrel 311, which can also block the aforementioned overflowing glue.

[0139] The following describes the case where the concave and convex structure is provided on the lens barrel 311.

[0140] In some embodiments, please refer to Figure 17 , Figure 17 This is a partial cross-sectional view of the lens 31 provided in other embodiments of this application on a plane perpendicular to the first surface m1. A second concave-convex structure 315 is provided on the first end face 311a of the lens barrel 311, and a first adhesive member 3131 is disposed on the surface of the second concave-convex structure 315. In this way, during the assembly of the lens barrel 311 and the first lens 3121, the second concave-convex structure 315 can block the overflow of adhesive in the effective diameter area facing the first surface m1, which can alleviate the problem of dirt caused by adhesive overflow during the assembly of the lens 31 and improve the imaging effect of the lens. At the same time, the provision of the second concave-convex structure 315 increases the contact area between the first adhesive member 3131 and the first end face 311a, improves the fixing effect between the first lens 3121 and the lens barrel 311, and is conducive to further reducing the size of the lens 31.

[0141] The optional structure and shape of the second concave-convex structure 315 are the same as those of the first concave-convex structure 314 described above, and will not be repeated here.

[0142] In some embodiments, please refer back to the reference. Figure 9While a second concave-convex structure 315 is provided on the first end face 311a, a first concave-convex structure 314 is provided on the first surface m1. The second concave-convex structure 315 and the first concave-convex structure 314 are opposite to each other and together block the glue overflowing into the effective diameter area of ​​the first surface m1 during the assembly process, further reducing the dirt problem caused by glue overflow during the lens 31 assembly process and improving the imaging effect of the lens 31. At the same time, the first concave-convex structure 314 and the second concave-convex structure 315 cooperate with each other, so that the contact area between the first adhesive 3131 and the first end face 311a and the first surface m1 is increased simultaneously, further improving the fixing effect between the first lens 3121 and the lens barrel 311.

[0143] In some embodiments, one of the first concave-convex structure 314 and the second concave-convex structure 315 includes a groove and the other includes a baffle wall, the baffle wall being accommodated within the groove. For example, please refer to... Figure 18 , Figure 18 This is a partial cross-sectional view of the lens 31 provided in other embodiments of this application on a plane perpendicular to the first surface m1. The first concave-convex structure 314 includes two baffles 314a, and the second concave-convex structure 315 includes a third groove a3, in which the baffles 314a are accommodated. This improves the overall compactness of the lens 31 structure.

[0144] In other embodiments, both the first concave-convex structure 314 and the second concave-convex structure 315 include retaining walls, with the retaining wall on the first concave-convex structure 314 and the retaining wall on the second concave-convex structure 315 interlocking. For example, please refer to... Figure 19 , Figure 19 This is a partial cross-sectional view of the lens 31 provided in other embodiments of this application on a plane perpendicular to the first surface m1. The first concave-convex structure 314 includes a retaining wall 314a, and the second concave-convex structure 315 includes two retaining walls: a second retaining wall 315a and a third retaining wall 315b, which are interlocked with each other. This improves the overall compactness of the lens 31 structure.

[0145] It is understood that in some embodiments, both the first concave-convex structure 314 and the second concave-convex structure 315 include grooves, such as... Figure 9 As shown. The first groove a1 on the first concave-convex structure 314 and the third groove a3 on the second concave-convex structure 315 cooperate to accommodate the overflow of glue during the molding process of the first adhesive 3131 and increase the contact area between the first adhesive 3131 and the first lens 3121 and the lens barrel 311, thereby improving the fixing effect between the first lens 3121 and the lens barrel 311.

[0146] The above embodiments solve the glue overflow problem during the assembly of the lens barrel 311 and the first lens 3121 by providing concave and convex structures on the first lens 3121 and / or the lens barrel 311. It is understood that in other embodiments, when the lens 31 includes a second lens 3122 and a third lens 3123 in the lens group 312, providing the above-mentioned concave and convex structures on the second lens 3122 and / or the third lens 3123 can also solve the glue overflow problem during the assembly of the second lens 3122 and the third lens 3123.

[0147] The following example illustrates the case where the concave-convex structure is provided on the second lens 3122 and the third lens 3123.

[0148] In some embodiments, when lens 31 includes lens group 312, and lens group 312 includes a second lens 3122 and a third lens 3123, please refer to [reference needed]. Figure 20 , Figure 20 for Figure 8 The enlarged schematic diagram of region D in lens 31 shows that the non-effective diameter region of the second surface m2 is provided with a third concave-convex structure 316, and the surface of the third concave-convex structure 316 is provided with a second adhesive 3132.

[0149] The second adhesive 3132 is provided on the surface of the third concave-convex structure 316, which means that the second adhesive 3132 is provided on the surface of the third concave-convex structure 316 facing the object.

[0150] In this way, during the assembly of the second lens 3122 and the third lens 3123, the third concave-convex structure 316 can block the glue overflowing from the non-effective diameter area of ​​the second surface m2 to the effective diameter area of ​​the second surface m2, which can reduce the dirt problem caused by glue overflow during the assembly of the lens 31 and improve the imaging effect of the lens. At the same time, the setting of the third concave-convex structure 316 increases the contact area between the second adhesive 3132 and the second surface m2, improves the fixing effect between the second lens 3122 and the third lens 3123, and is conducive to further reducing the size of the lens 31.

[0151] Correspondingly, the shape and structure of the third concave-convex structure 316 are the same as those of the first concave-convex structure 314, and the structure of the second adhesive 3132 is also the same as that of the first adhesive 3131, which will not be described again here.

[0152] It is understood that in some embodiments, the third lens 3123 includes a third surface m3 opposite to the second lens 3122, and a fourth concave-convex structure 317 may also be provided on the non-effective diameter region of the third surface m3. The shape and structure of the fourth concave-convex structure 317 may be the same as those of the first concave-convex structure 314.

[0153] In other embodiments, please continue to refer to Figure 20 While the third lens 3123 includes the fourth concave-convex structure 317, the second lens 3122 may also include the third concave-convex structure 316. In this case, the fourth concave-convex structure 317 and the third concave-convex structure 316 are opposite each other, jointly blocking the glue overflowing into the effective diameter area of ​​the first surface m1 during assembly, further reducing the dirt problem caused by glue overflow during lens 31 assembly, and improving the imaging effect of lens 31. At the same time, the third concave-convex structure 316 and the fourth concave-convex structure 317 cooperate with each other to further improve the fixing effect between the second lens 3122 and the third lens 3123.

[0154] Correspondingly, the structural combination of the third concave-convex structure 316 and the fourth concave-convex structure 317 is the same as that of the first concave-convex structure 314 and the second concave-convex structure 315. Either the third concave-convex structure 316 or the fourth concave-convex structure 317 may include a groove, or the fourth concave-convex structure 317 may include a retaining wall, or both may be grooves, or both may be retaining walls.

[0155] When one of the third concave-convex structure 316 and the fourth concave-convex structure 317 includes a groove and the other includes a retaining wall, the retaining wall can be accommodated in the groove; when both the third concave-convex structure 316 and the fourth concave-convex structure 317 include retaining walls, the retaining wall on the third concave-convex structure 316 and the retaining wall on the fourth concave-convex structure 317 fit together, which can also improve the overall compactness of the lens 31 structure.

[0156] When both the third concave-convex structure 316 and the fourth concave-convex structure 317 include grooves, such as Figure 20 As shown. The fourth groove a4 located on the third concave-convex structure 316 can also cooperate with the fifth groove a5 located on the fourth concave-convex structure 317 to accommodate the overflow of glue during the molding process of the second adhesive 3132 and increase the contact area between the second adhesive 3132 and the second lens 3122 and the third lens 3123, thereby improving the fixing effect between the second lens 3122 and the third lens 3123.

[0157] 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.

[0158] 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 scope of the technical solutions of the embodiments of this application.

Claims

1. A lens, characterized in that, The lens includes: a first lens and a lens barrel; The lens barrel has a first end face facing the image side, and the first lens is located on the side of the first end face facing the image side. The first lens includes an effective diameter region and a non-effective diameter region surrounding the effective diameter region. The first lens includes a first surface, which is close to the first end face. The non-effective diameter region of the first surface is provided with a first concave-convex structure. The surface of the first concave-convex structure is provided with a first adhesive member. The first lens is used to connect to the first end face through the first adhesive member.

2. The lens according to claim 1, characterized in that, The first concave-convex structure is arranged around the effective diameter region of the first lens.

3. The lens according to claim 1 or 2, characterized in that, The first concave-convex structure includes a first groove, which extends from the first surface into the interior of the first lens.

4. The lens according to claim 1 or 2, characterized in that, The first concave-convex structure includes a retaining wall, which protrudes from the first surface.

5. The lens according to claim 4, characterized in that, The retaining walls are multiple, and two adjacent retaining walls and the first surface form a second groove.

6. The lens according to claim 1 or 2, characterized in that, The first end face is provided with a second concave-convex structure, which is opposite to the first concave-convex structure.

7. The lens according to claim 1 or 2, characterized in that, The first adhesive component is formed by dispensing adhesive.

8. The lens according to claim 1 or 2, characterized in that, The first adhesive component includes: a first part and a second part connected together, the first part being disposed in the area enclosed by the first concave-convex structure and the first surface, the second part being disposed on the side of the first part facing the object, and the cross-sectional dimension of the second part being larger than the cross-sectional dimension of the first part.

9. The lens according to claim 8, characterized in that, The longitudinal cross-sectional shape of the first part includes: square, arc, triangle, T-shape, dovetail groove, and trapezoid.

10. The lens according to claim 1 or 2, characterized in that, The first concave-convex structure and the first lens are integrally formed by injection molding.

11. The lens according to claim 1 or 2, characterized in that, The first concave-convex structure is formed by machining or etching.

12. The lens according to claim 1 or 2, characterized in that, The lens also includes a lens group, the lens barrel includes an accommodating space, the lens group is disposed in the accommodating space, the lens group includes a second lens and a third lens, the second lens is located on the side of the first lens facing the object, the third lens is located on the side of the second lens facing the object, and the third lens, the second lens, and the first lens are stacked along the optical axis. The second lens includes a second surface opposite to the third lens. The non-effective diameter region of the second surface is provided with a third concave-convex structure. The surface of the third concave-convex structure is provided with a second adhesive member. The second lens is used to connect to the third lens through the second adhesive member.

13. A camera module, characterized in that, include: The lens according to any one of claims 1-12; A photosensitive chip, wherein the photosensitive chip is disposed on the image side of the lens.

14. An electronic device, characterized in that, include: case; The camera module of claim 13, wherein the camera module is disposed within the housing.

Images