Optical assembly, camera module and mobile device

Abstract

This utility model discloses an optical component, a camera module, and a mobile device. The optical component includes a lens barrel and an optical lens disposed within the lens barrel. The optical lens includes a main body and a supporting portion surrounding the main body. At least two lugs are spaced apart on the outer periphery of the supporting portion. The at least two lugs cooperate and fix with the inner wall of the lens barrel, so that the optical lens is disposed within the lens barrel. A gap is formed between the supporting portion and the inner wall of the lens barrel in the radial direction of the lens barrel, which can reduce the contact area between the optical lens and the inner wall of the lens barrel, and also reduce the contact area between the lugs and the inner wall of the lens barrel. In this way, the force transmitted from the lens barrel to the optical lens through the lugs can be reduced, thereby reducing or preventing deformation of the optical lens and enabling the camera module equipped with this optical component to maintain high-quality imaging.

Description

Technical Field

[0001] This application relates to the field of optical technology, and in particular to an optical component, a camera module, and a mobile device. Background Technology

[0002] Currently, camera modules are widely used in film and television, security, facial recognition, vehicle monitoring, and driver assistance. Camera modules use lenses set in the lens barrel to acquire optical information of the subject and transmit the acquired optical information to the imaging device to obtain the image of the subject.

[0003] However, when the camera module is subjected to vibration or impact, the lens barrel may deform, and the deformed lens barrel will compress the lens. Furthermore, when the camera module is in a high or low temperature environment, the lens barrel is susceptible to deformation due to the extreme temperatures. When the lens barrel deforms, it compresses the lens, directly transferring external force to the lens, causing deformation of the lens's optical surface. This reduces the imaging quality of the camera module and, in severe cases, may even lead to the lens shattering. Utility Model Content

[0004] This application discloses an optical component, a camera module, and a mobile device that can reduce the force transmitted to the optical surface of the optical lens when the lens barrel is deformed, thereby reducing or preventing the deformation of the optical surface and maintaining high-quality imaging of the camera module.

[0005] In a first aspect, this application discloses an optical component, comprising:

[0006] The lens barrel has a receiving space;

[0007] An optical lens, comprising a main body and a supporting part, both located within the receiving space, the supporting part being arranged around the axis of the lens barrel and connected to the main body;

[0008] At least two lugs are provided on the surface of the support portion away from the main body portion and are spaced apart around the axis of the lens barrel. The lugs are fixed to the inner wall of the lens barrel so that a gap is formed between the support portion and the inner wall of the lens barrel in the radial direction of the lens barrel. The end face of the lug facing the inner wall of the lens barrel is provided with a first recessed portion, which is recessed along the axial direction of the lens barrel.

[0009] The optical assembly provided in this application includes a lens barrel and an optical lens disposed within the lens barrel. The optical lens includes a main body and a supporting portion surrounding the main body. At least two lugs are spaced apart on the outer periphery of the supporting portion. These lugs engage and are fixed to the inner wall of the lens barrel, thus positioning the optical lens within the lens barrel and creating a radial gap between the supporting portion and the inner wall of the lens barrel. This reduces the contact area between the optical lens and the inner wall of the lens barrel. When the lens barrel deforms, the force-bearing area on the surface of the optical lens affected by the lens barrel is reduced, thereby reducing the force transmitted from the lens barrel to the optical lens and minimizing lens deformation caused by lens barrel deformation. Furthermore, a first recess is provided on the end face of the lug facing the lens barrel. This first recess is radially recessed, further reducing the contact area between the lug and the inner wall of the lens barrel. In this way, when the lens barrel deforms, the contact area between the lug and the lens barrel is reduced, which reduces the force transmitted from the lens barrel to the optical lens through the lug. This reduces or prevents the optical lens from deforming, allowing the camera module equipped with this optical component to maintain high-quality imaging.

[0010] In one possible embodiment, the lug has a first surface and a second surface arranged opposite to each other along the axial direction of the lens barrel, and at least one of the first surface and the second surface is provided with a second recess, the second recess being recessed along the axial direction of the lens barrel.

[0011] It should be understood that even after the first recess is provided on the lug, although the lug and the inner wall of the lens barrel still maintain surface contact, a certain degree of stress concentration may still exist due to the small contact area. Therefore, a second recess is provided on at least one of the first and second surfaces of the lug, which are spaced apart along the axial direction of the lens barrel. In this way, when stress concentration occurs, the structural strength of the part of the lug with the second recess is reduced, allowing for appropriate deformation. The stress is absorbed through structural deformation, preventing stress damage to the lug or transmission to the optical lens. This not only prevents damage to the lug but also reduces or blocks the transmission of force, thereby reducing the deformation of the main body due to external forces and maintaining the optical performance of the optical components.

[0012] In one possible implementation, both the first surface and the second surface are provided with the second recess, and the two second recesses are interconnected in the axial direction of the lens barrel.

[0013] The second recess penetrates the two surfaces of the lug along the axial direction of the main body, allowing the lug to have a larger deformation margin. This enables the lug to deform more significantly when squeezed by the lens barrel, thereby improving the absorption of the corresponding force, effectively reducing stress transmission, and keeping the shape of the optical lens stable, thus maintaining stable optical performance of the optical lens.

[0014] In one possible implementation, the first recess is in communication with the second recess; and / or, the profile of the cross-section of the second recess perpendicular to the axial direction of the lens barrel is circular.

[0015] The first and second recesses are connected, meaning that hollowing out the lugs at relatively concentrated locations further reduces the structural strength at those locations, allowing for greater deformation margins. This helps the lugs absorb stress through deformation, alleviating stress concentration. Furthermore, because the first and second recesses extend in different directions, the lugs can absorb stress from different directions, thus reducing the impact of stress on the main body. The second recess has a circular cross-sectional profile perpendicular to the lens barrel axis. Therefore, when stress is transmitted to the location of the second recess on the lug, the regular circular profile of the second recess ensures a more even stress distribution, preventing stress concentration.

[0016] In one possible implementation, the main body has an object side and an image side arranged opposite to each other along the axial direction of the lens barrel. The object side includes a first optically effective area and a first non-optically effective area arranged around the first optically effective area. The first non-optically effective area is provided with a third recess around the first optically effective area.

[0017] And / or, the main body has an object side and an image side arranged opposite to each other along the axial direction of the lens barrel, the image side including a second optically effective area and a second non-optically effective area arranged around the second optically effective area, the second non-optically effective area having a fourth recessed portion surrounding the second optically effective area.

[0018] The main body has an object-side side and an image-side side along the axial direction of the lens barrel. The object-side side has a first optically effective area and a first non-optically effective area arranged around the first optically effective area. The image-side side includes a second optically effective area and a second non-optically effective area surrounding the second optically effective area. The first non-optically effective area has a third recess surrounding the first optically effective area, and / or the second non-optically effective area has a fourth recess surrounding the second optically effective area. By providing recesses in the first non-optically effective area and / or the second non-optically effective area, the thickness of the main body at the third recess and / or the fourth recess can be reduced, thus lowering the structural strength of the main body at that location. When the lens barrel transmits external force to the main body located at the third recess and / or the fourth recess through the lugs, the main body can deform at the third recess and / or the fourth recess. That is, through the third recess and / or the fourth recess, the deformation of the main body can occur in the first non-optically effective area and / or the second non-optically effective area, thereby reducing or preventing deformation in the first optically effective area and / or the second optically effective area. In this way, even if the force exerted by the lens barrel on the lug is transmitted to the main body, the third and / or fourth recesses can further absorb the external force through structural deformation, reducing or avoiding the influence of the external force on the first optically effective area and / or the second non-optically effective area of ​​the main body, thereby enabling the optical lens to maintain stable optical performance.

[0019] In one possible embodiment, at least one of the two sides of the lug on the axial direction of the lens barrel is provided with a guide slope, the guide slope being inclined relative to the axis of the lens barrel, so that the dimension of the end of the lug away from the support portion on the axial direction of the lens barrel is smaller than the dimension of the rest of the lug on the axial direction of the lens barrel.

[0020] By setting a guide slope on the lug, with the guide slope inclined relative to the axis of the lens barrel, the optical lens can be guided by the guide slope when it is assembled into the lens barrel, so that the optical lens can slide smoothly into the lens barrel, which can reduce the assembly difficulty of the optical lens and the lens barrel.

[0021] In one possible embodiment, the lug includes a first lug, a second lug, and two connecting portions. The first lug, the second lug, and the two connecting portions are all connected to the support portion. The first lug and the second lug are arranged opposite each other along the axial direction of the lens barrel. The two connecting portions are arranged opposite each other along the circumferential direction of the support portion and are connected between the first lug and the second lug. The first lug, the second lug, and the two connecting portions form the first recess. In the axial direction of the lens barrel, the thickness of the first lug is greater than the thickness of the second lug. The guide slope is provided on the side of the first lug away from the second lug.

[0022] By setting the end of the lug that mates with the lens barrel as two lugs of different thicknesses, with the first lug being thicker than the second lug, and a guide bevel is provided on the first lug, the first lug has a larger volume, which facilitates the setting of the guide bevel. At the same time, due to the greater thickness of the first lug, it has stronger structural strength. Even with the guide bevel on the first lug, it can still maintain greater structural strength and is not easily broken by external forces.

[0023] In one possible implementation, the lens barrel and the optical lens are made of different materials; the lens barrel is made of metal or plastic, while the optical lens is made of glass or plastic.

[0024] When the lens barrel and optical lenses are made of the same material, under high temperatures, they expand simultaneously to similar degrees, potentially causing the lens barrel to compress the optical lenses and deform them. Under low temperatures, they shrink simultaneously to similar degrees, potentially increasing the gap between them or causing them to detach. Using different materials allows for a balance of expansion coefficients, preventing compression at high temperatures and avoiding increased gaps at low temperatures. Using metal for the lens barrel increases its strength, mitigating deformation under external forces and reducing the risk of external forces affecting the optical lenses. Using plastic for the lens barrel helps reduce weight, enabling lightweight optical component design. Using glass for the optical lenses improves their optical performance and reduces the impact of ambient temperature, maintaining stable optical performance. Optical lenses are made of plastic, which makes it easy to manufacture different aspherical surfaces according to requirements, reducing the manufacturing difficulty of optical components. At the same time, due to the low density of plastic, it helps to achieve lightweight design of optical components.

[0025] Secondly, this application discloses a camera module including the optical components described in any of the above claims.

[0026] Thirdly, this application discloses a mobile device including the aforementioned camera module.

[0027] Compared with the prior art, this application has at least the following beneficial effects:

[0028] The optical assembly provided in this application includes a lens barrel and an optical lens disposed within the lens barrel. The optical lens includes a main body and a supporting portion surrounding the main body. At least two lugs are spaced apart on the outer periphery of the supporting portion. These lugs engage and are fixed to the inner wall of the lens barrel, thus positioning the optical lens within the lens barrel and creating a radial gap between the supporting portion and the inner wall of the lens barrel. This reduces the contact area between the optical lens and the inner wall of the lens barrel. When the lens barrel deforms, the force-bearing area on the surface of the optical lens affected by the lens barrel is reduced, thereby reducing the force transmitted from the lens barrel to the optical lens and minimizing lens deformation caused by lens barrel deformation. Furthermore, a first recess is provided on the end face of the lug facing the lens barrel. This first recess is radially recessed, further reducing the contact area between the lug and the inner wall of the lens barrel. In this way, when the lens barrel deforms, the contact area between the lug and the lens barrel is reduced, which reduces the force transmitted from the lens barrel to the optical lens through the lug. This reduces or prevents the optical lens from deforming, allowing the camera module equipped with this optical component to maintain high-quality imaging. Attached Figure Description

[0029] To more clearly illustrate the technical solutions in this application, the drawings used in the application will be briefly introduced below. Obviously, the drawings described below are only some embodiments of this utility model. For those skilled in the art, other drawings can be obtained from these drawings without creative effort.

[0030] Figure 1 This is a schematic diagram of the structure of the optical component in the embodiments of this application;

[0031] Figure 2 This is a schematic diagram of the lens barrel structure in an embodiment of this application;

[0032] Figure 3 yes Figure 1 A top view of the optical components shown;

[0033] Figure 4 This is a schematic diagram of the structure of the optical lens in the embodiments of this application;

[0034] Figure 5 yes Figure 4 A side view of the optical lens shown;

[0035] Figure 6 yes Figure 4 Enlarged view of region B in the middle;

[0036] Figure 7 yes Figure 5 Enlarged view of region C in the middle;

[0037] Figure 8 yes Figure 3 A schematic cross-sectional view of the optical component shown along the A-A' direction;

[0038] Figure 9 This is a schematic diagram of the structure of the third recess of the optical lens in an embodiment of this application;

[0039] Figure 10 This is a schematic diagram of the camera module in the embodiments of this application;

[0040] Figure 11 This is a structural diagram of a vehicle as an embodiment of this application.

[0041] Explanation of reference numerals in the attached figures:

[0042] 1. Optical component; 11. Lens barrel; 11a. Accommodation space; 11b. Gap; 12. Optical lens; 121. Main body; 121a. Third recess; 121b. Fourth recess; 1211. First optical surface; VA1. First optical effective area; NA1. First non-optical effective area; 1212. Second optical surface; VA2. Second optical effective area; NA2. Second non-optical effective area; 122. Supporting part; 13. Lug; 13a. First recess; 13b. Second recess; 131. End face; 132. First surface; 133. Second surface; 134. Guide slope; 135. First ear; 136. Second ear; 137. Connecting part;

[0043] 2. Camera module; 21. Housing;

[0044] 3. Vehicle-mounted camera device; 4. Automobile. Detailed Implementation

[0045] The technical solutions of the embodiments of this application will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of this application, and not all embodiments. Based on the embodiments of this application, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of this application.

[0046] In this application, the terms "upper," "inner," "outer," "middle," etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. These terms are primarily for the purpose of better describing this application and its embodiments, and are not intended to limit the indicated device, element, or component to having a specific orientation, or to be constructed and operated in a specific orientation.

[0047] Furthermore, in addition to indicating location or positional relationship, some of the aforementioned terms may also have other meanings. For example, the term "above" may also be used in some cases to indicate a certain dependency or connection relationship. Those skilled in the art can understand the specific meaning of these terms in this application based on the specific circumstances.

[0048] Furthermore, the terms "provided with" and "connected" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral structure; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium, or an internal connection between two devices, components, or parts. Those skilled in the art can understand the specific meaning of these terms in this application based on the specific circumstances.

[0049] Furthermore, the terms "first," "second," etc., are primarily used to distinguish different devices, elements, or components (which may be the same or different in specific type and construction), and are not intended to indicate or imply the relative importance or quantity of the indicated devices, elements, or components. Unless otherwise stated, "a plurality of" means two or more.

[0050] In a camera module, the materials used to manufacture the optical lenses and the lens barrel that houses them are different. In high-temperature or low-temperature environments, such as above 90°C or below -20°C, the degree of expansion and contraction of the optical lenses and the lens barrel differs. In such cases, the deformation of the lens barrel may exert a force on the optical lenses, causing them to be compressed. When a camera module is used in a car, the vibrations or shocks from the vehicle's movement will also exert vibrations or shocks on the camera module. These vibrations or shocks will be transmitted to the optical lenses through the lens barrel. When the force exerted by the lens barrel on the optical lenses is transmitted to the optical surfaces, it causes deformation of the optical surfaces, altering the peak-to-valley (PV) profile, which directly affects the imaging quality of the camera module.

[0051] To address the aforementioned issues, the inventors attempted to use liquid lenses as optical elements. Leveraging the shape-changing nature of liquid lenses, they aimed to reduce the impact of external forces. However, setting up liquid lenses is challenging and requires high precision. Furthermore, a suitable driving mechanism is needed to deform the liquid lens, increasing the overall manufacturing cost and complexity of the camera module. Additionally, the process of detecting the magnitude and direction of the force applied to the liquid lens by the lens barrel before driving its deformation takes a considerable amount of time. While this method is feasible in scenarios where lens barrel deformation is caused by temperature changes, it fails to meet practical requirements when the lens barrel is subjected to vibration or impact.

[0052] To address the aforementioned technical problems, this application discloses an optical component, a camera module, and a mobile device. The optical component includes a lens barrel and an optical lens disposed within the lens barrel. Each optical lens includes a main body and a supporting portion surrounding the main body. At least two lugs are spaced apart on the outer periphery of the supporting portion, and these lugs engage with and are fixed to the inner wall of the lens barrel, thus placing the optical lens within the lens barrel and creating a radial gap between the supporting portion and the inner wall of the lens barrel. This reduces the contact area between the optical lens and the inner wall of the lens barrel. When the lens barrel deforms, the force-bearing area on the surface of the optical lens affected by the lens barrel is reduced, thereby reducing the force transmitted from the lens barrel to the optical lens and minimizing lens deformation caused by lens barrel deformation. Furthermore, a first recess is provided on the end face of the lug facing the lens barrel, and this first recess is recessed radially along the lens barrel, further reducing the contact area between the lug and the inner wall of the lens barrel. In this way, when the lens barrel deforms, the contact area between the lug and the lens barrel is reduced, which reduces the force transmitted from the lens barrel to the optical lens through the lug. This reduces or prevents the optical lens from deforming, allowing the camera module equipped with this optical component to maintain high-quality imaging.

[0053] Please refer to the following: Figures 1 to 3 ,in, Figure 1 This is a schematic diagram of the structure of the optical component in the embodiments of this application. Figure 2 This is a schematic diagram of the lens barrel structure in an embodiment of this application. Figure 3 yes Figure 1 A top view of the optical components shown.

[0054] In a first aspect, embodiments of this application provide an optical component 1, which includes a lens barrel 11 and an optical lens 12. The lens barrel 11 has a receiving space 11a for receiving the optical lens 12.

[0055] It should be understood that when the lens barrel 11 and the optical lens 12 are made of the same material, under high-temperature conditions, the lens barrel 11 and the optical lens 12 expand simultaneously to the same or similar degrees, which may cause the lens barrel 11 to compress the optical lens 12, causing the optical lens 12 to deform. Under low-temperature conditions, the lens barrel 11 and the optical lens 12 shrink simultaneously to the same or similar degrees, which may cause the gap between the lens barrel 11 and the optical lens 12 to increase or cause delamination. Therefore, the lens barrel 11 and the optical lens 12 are generally made of different materials; even if both are made of plastic, they are made of different types of plastic. When the lens barrel 11 and the optical lens 12 are made of different materials, the expansion coefficients of the different materials can be matched to prevent the lens barrel 11 and the optical lens 12 from compressing each other at high temperatures and to prevent the gap between the lens barrel 11 and the optical lens 12 from increasing at low temperatures.

[0056] Optionally, the lens barrel 11 can be made of materials such as plastic or metal. Using metal increases its strength, mitigating deformation under external forces and reducing the risk of external forces affecting the optical lens 12. Using plastic helps reduce its weight, enabling a lightweight design for the optical component 1. The optical lens 12 can be made of optical glass or optical plastic. Using glass improves its optical performance and reduces the impact of ambient temperature, maintaining stable optical performance. Using plastic allows for the fabrication of different aspherical surfaces, reducing manufacturing complexity. The low density of plastic also contributes to a lightweight design. Considering the lightweight design of the camera module, the lens barrel 11 can be made of rigid plastic / engineering plastic, and the optical lens 12 can be made of optical plastic. Understandably, to avoid light leakage from the camera module, the lens barrel 11 is generally made of an opaque material.

[0057] In some embodiments, the optical lens 12 includes a main body 121 and a supporting part 122, both of which are located in the receiving space 11a. The supporting part 122 is arranged around the axis of the lens barrel 11 and connected to the main body 121. It is understood that when the camera module has multiple optical lenses 12, the multiple optical lenses 12 are generally stacked sequentially along the axis of the lens barrel 11. Adjacent optical lenses 12 are generally fixed to each other by the supporting part 122, so that the adjacent optical lenses 12 maintain a stable and appropriate spacing, thereby ensuring that the camera module can achieve stable and clear imaging.

[0058] In some embodiments, the optical component 1 further includes a plurality of lugs 13 connected to the surface of the support portion 122 facing away from the main body portion 121, and the plurality of lugs 13 are arranged at intervals around the axis of the lens barrel 11. The lugs 13 are fitted and fixed to the inner wall of the lens barrel 11 so that a gap 11b is formed between the support portion 122 and the inner wall of the lens barrel 11 in the radial direction of the lens barrel 11. By providing a plurality of lugs on the outer periphery of the support portion of the optical lens and using the plurality of lugs to gap-connect with the inner wall surface of the lens barrel, this application replaces the method of gap-connecting the entire outer periphery of the support portion of the optical lens with the inner wall surface of the lens barrel 11. This can reduce the contact area between the optical lens 12 and the inner wall of the lens barrel 11. When the lens barrel 11 deforms, the force-bearing area of ​​the surface of the optical lens 12 affected by the lens barrel 11 can be reduced, thereby reducing the force transmitted from the lens barrel 11 to the optical lens 12, so as to reduce the deformation of the optical lens 12 caused by the deformation of the lens barrel 11. Understandably, the way the lug 13 is fixed to the inner wall of the lens barrel 11 can be a clearance fit or an interference fit. The specific fit method can be selected and set according to the actual situation, which will not be elaborated here.

[0059] Optionally, the optical lens 12 and the lug 13 can be independently configured, meaning that the optical lens 12 and the lug 13 are individually manufactured and then the lug 13 is fixed to the optical lens 12. For example, the lug 13 can be fixed to the optical lens 12 by adhesive. Of course, the optical lens 12 and the lug 13 can also be integrally constructed as a single component. For example, the optical lens 12 and the lug 13 can be integrally injection molded.

[0060] In some embodiments, the optical lens 12 is a circular lens, which is easier to manufacture and has better optical performance.

[0061] It should be noted that, to ensure the relative stability of the optical lens 12 after it is installed in the lens barrel 11, preferably, there are at least three lugs 13, which are spaced apart around the support portion 122. This ensures that after the optical lens 12 is installed in the lens barrel 11, there are at least three mating points between the optical lens 12 and the lens barrel 11. These three mating points are coplanar, preventing the optical lens 12 from flipping. Of course, more lugs 13 can be provided; the specific number and position can be determined based on actual needs and manufacturing costs.

[0062] Please see also Figure 4 , Figure 4 This is a schematic diagram of the structure of the optical lens in the embodiments of this application.

[0063] In some embodiments, the end face 131 of the lug 13 facing the inner wall of the lens barrel 11 is provided with a first recess 13a, and the first recess 13a is recessed along the axial direction of the lens barrel 11. In this way, the contact area between the lug 13 and the inner wall of the lens barrel 11 can be reduced. When the lens barrel 11 is deformed, the force transmitted from the lens barrel 11 to the optical lens 12 through the lug 13 can be reduced due to the reduced contact area between the lug 13 and the lens barrel 11. This can reduce or prevent the deformation of the optical lens 12, so that the camera module equipped with the optical component 1 can maintain high-quality imaging.

[0064] For example, the first recess 13a is a groove provided on the lug 13, which can be a square groove, a round groove or other groove of any shape.

[0065] Optionally, the first recess 13a can be formed by removing a portion of the lug 13, for example, by CNC machining, laser cutting, etching, or other methods. Alternatively, the first recess 13a can be formed directly when forming the lug 13. For example, when forming the lug 13 by injection molding, a corresponding structure can be set on the injection mold, and the first recess 13a can be formed directly after injection molding.

[0066] In some embodiments, a first recess 13a is provided in the central region of the end face of the lug 13 facing the inner wall of the lens barrel 11. In this way, the end face 131 of the lug 13 facing the inner wall of the lens barrel 11 is an annular surface, which can make the lug 13 and the inner wall of the lens barrel 11 have an appropriate contact area. When the contact area between the lug 13 and the inner wall of the lens barrel 11 is reduced, the lug 13 and the inner wall of the lens barrel 11 are kept in surface contact, avoiding point contact between the lug 13 and the inner wall of the lens barrel 11. This can prevent stress concentration and thus prevent the lug 13 and / or the optical lens 12 from being damaged due to stress concentration.

[0067] It should be understood that after the first recess 13a is provided on the lug 13, although the lug 13 and the inner wall of the lens barrel 11 still maintain surface contact, a certain degree of stress concentration may still exist due to the small contact area. In some embodiments, the lug 13 is further provided with a second recess 13b, which is recessed along the axial direction of the optical lens 12. It should be noted that when the optical lens 12 is assembled into the lens barrel 11, the axial direction of the optical lens 12 is the same as the axial direction of the lens barrel 11, that is, when the optical lens 12 is located in the lens barrel 11, the second recess 13b extends along the axial direction of the lens barrel 11. In this way, when stress concentration occurs, the structural strength of the part of the lug 13 with the second recess 13b is reduced, which can achieve appropriate deformation. By deforming the structure, stress is absorbed, preventing stress from damaging the lug 13 or being transmitted to the main body 121. This can both prevent damage to the lug 13 and reduce or block the transmission of force, thereby reducing the deformation of the main body 121 due to the influence of external forces, and thus maintaining the optical performance of the optical component 1.

[0068] For example, in the axial direction of the lens barrel 11, the lug 13 has a first surface 132 and a second surface 133 arranged opposite to each other, and at least one of the first surface 132 and the second surface 133 is provided with the aforementioned second recess 13b. It can be understood that the second recess 13b can be a groove.

[0069] In some embodiments, both the first surface 132 and the second surface 133 are provided with the aforementioned second recess 13b. This results in a larger hollowed-out portion of the lug 13, allowing for greater overall deformation margin. This enables the lug 13 to deform more significantly when compressed by the lens barrel 11, improving stress absorption, effectively reducing stress transmission, and maintaining the shape of the main body 121, thereby ensuring stable optical performance of the optical lens 12. Furthermore, since both the first surface 132 and the second surface 133 are provided with the second recess 13b, when the lens barrel 11 applies force to the lug 13 due to deformation, the stress on both surfaces is essentially the same, preventing stress concentration and damage to the lug 13.

[0070] In some embodiments, the second recess 13b of the first surface 132 and the second recess 13b of the second surface 133 are interconnected in the axial direction of the lens barrel 11. In this case, the two second recesses 13b form a through hole. This further increases the deformation allowance of the lug 13 under stress, enabling greater deformation when the lens barrel 11 applies a larger force to the lug 13, thereby improving stress absorption, effectively reducing stress transmission, and maintaining the shape of the optical lens 12 stably, thus ensuring stable optical performance of the optical lens 12.

[0071] In some embodiments, the first recess 13a and the second recess 13b are connected, that is, the lug 13 is hollowed out at a relatively concentrated position, which can further reduce the structural strength of the lug 13 at the corresponding position, so that the lug 13 has a larger deformation margin, which helps the lug 13 absorb stress through deformation and alleviate stress concentration. At the same time, since the first recess 13a and the second recess 13b extend in different directions, the lug 13 can absorb stress in different directions, thereby reducing the impact of stress in different directions on the main body 121.

[0072] In some embodiments, the outline of the interface of the second recess 13b perpendicular to its own extension direction is circular. That is, when the optical lens 12 group enters the lens barrel 11, the outline of the cross section of the second recess 13b perpendicular to the axis of the lens barrel 11 is circular. In this way, when stress is transmitted to the position where the lug 13 is provided with the second recess 13b, since the cross section outline of the second recess 13b is a regular circle, the stress distribution can be more even, avoiding stress concentration.

[0073] In some embodiments, at least one of the first surface 132 and the second surface 133 is provided with a guide ramp 134. The guide ramp 134 is inclined relative to the axis of the lens barrel 11, so that the axial dimension of the end of the lug 13 away from the support portion 122 in the lens barrel 11 is smaller than the axial dimension of the rest of the lug 13 in the lens barrel 11. With this configuration, when the optical lens 12 is assembled into the lens barrel 11, the guide ramp 134 can be used to guide the optical lens 12, allowing the optical lens 12 to slide smoothly into the lens barrel 11, which can reduce the assembly difficulty of the optical lens 12 and the lens barrel 11.

[0074] It is understandable that, from the object side to the image side of the camera module, if the optical surfaces of the optical lenses 12 in the camera module have an order, such as spherical and aspherical surfaces, concave and convex surfaces need to be set according to a preset front-to-back order to achieve the corresponding technical effect, a guide slope 134 can be set only on the first surface 132 or the second surface 133. The position of the guide slope 134 can be used as an identification mark or a foolproof mark to ensure that the surface of the optical lens 12 facing the lug 13 with the guide slope 134 is first assembled into the lens barrel 11, so as to ensure that the surface of the optical lens 12 can be set according to the preset front-to-back order.

[0075] In other embodiments, both the first surface 132 and the second surface 133 may be provided with guide ramps 134, and the two guide ramps 134 cause the thickness of the end of the lug 13 away from the bearing portion 122 to decrease progressively. When both the first surface 132 and the second surface 133 are provided with guide ramps, the optical lens 12 can be assembled into the lens barrel 11 from either side. Of course, the guide ramps 134 may also be provided as guide curved surfaces, such as arcuate surfaces.

[0076] Please see also Figures 5 to 7 , Figure 5 yes Figure 4 The diagram shows a side view of the optical lens. Figure 6 yes Figure 4 Enlarged diagram of region B in the middle. Figure 7 yes Figure 5 A magnified view of region C in the middle.

[0077] In some embodiments, the lug 13 includes a first lug 135, a second lug 136, and two connecting portions 137. The first lug 135, the second lug 136, and the two connecting portions 137 are all connected to the side of the support portion 122 opposite to the main body portion 121. The first lug 135 and the second lug 136 are arranged opposite each other along the axial direction of the lens barrel 11, and the two connecting portions 137 are arranged opposite each other along the circumferential direction of the support portion 122 and are connected between the first lug 135 and the second lug 136. The first lug 135, the second lug 136, and the two connecting portions 137 form a first recess 13a. In the axial direction of the lens barrel 11, the thickness d1 of the first lug 135 is greater than the thickness d2 of the second lug 136. A guide slope 134 is provided on the side of the first lug 135 opposite to the second lug 136. With this configuration, the first ear portion 135 has a large thickness, which facilitates the formation of a guide slope 134 on the first ear portion 135. Furthermore, due to the large thickness of the first ear portion 135, even after the guide slope 134 is set, it can still maintain a high basic structural strength and is not easily broken by external forces.

[0078] Understandably, the first ear portion 135 is provided with the aforementioned first surface 132, and the second ear portion 136 is provided with the aforementioned second surface 133.

[0079] Please see also Figure 8 and Figure 9 , Figure 8 yes Figure 3 The diagram shows a cross-sectional view of the optical component along the A-A' direction. Figure 9 This is a schematic diagram of the structure of the third recess of the optical lens in an embodiment of this application.

[0080] In some embodiments, the main body 121 has a first optical surface 1211 and a second optical surface 1212 arranged opposite to each other along the thickness direction. The first optical surface 1211 includes a first optically effective region VA1 and a first optically ineffective region NA1, with the first optically ineffective region NA1 surrounding the first optically effective region VA1. The first optically ineffective region NA1 is provided with a third recess 121a, and the third recess 121a surrounds the first optically effective region VA1. For example, the third recess 121a is recessed along the thickness direction of the main body 121. By providing the third recess 121a, the thickness of the main body 121 at the third recess 121a can be reduced, thereby lowering the structural strength of the main body 121 at that location. When the lens barrel 11 transmits external force to the main body 121 at the location of the third recess 121a via the lug 13, the main body 121 can deform at the third recess 121a. That is, through the third recess 121a, the deformation of the main body 121 can occur in the first non-optically effective region NA1, thus reducing or preventing deformation in the first optically effective region VA1. In this way, even if the force applied by the lens barrel 11 to the lug 13 is transmitted to the main body 121, the third recess 121a can further absorb the external force through structural deformation, reducing or avoiding the influence of the external force on the first optically effective region VA1 of the main body 121, thereby enabling the optical lens 12 to maintain stable optical performance.

[0081] For example, the first optical surface 1211 may be the object side of the optical lens 12, and the second optical surface 1212 may be the image side of the optical lens 12. For yet another example, the first optical surface 1211 may be the image side of the optical lens 12, and the second optical surface 1212 may be the object side of the optical lens 12.

[0082] In some embodiments, similar to the first optical surface 1211, the second optical surface 1212 includes a second optically effective region VA2 and a second non-optically effective region NA2 arranged around the second optically effective region VA2. The second non-optically effective region NA2 is provided with a fourth recess 121b surrounding the second optically effective region VA2. Thus, based on the third recess 121a, the second non-optically effective region NA2 is also provided with a corresponding fourth recess 121b, which can further reduce the structural strength of the main body 121 at the location of the fourth recess 121b, making the main body 121 more easily deformable and absorbing external forces under the action of external forces, reducing the impact of external forces on the second optically effective region VA2, thereby maintaining the optical performance of the optical lens 12.

[0083] It is understandable that the optically effective area is the region on the optical surface of the optical lens 12 through which imaging light passes, and where the imaging light undergoes physical processing such as convergence, diffusion, refraction, or scattering. The non-optically effective area, on the other hand, can be used to block stray light.

[0084] Table 1 shows the maximum stress values ​​of the effective optical diameter of conventional optical lenses and the optical lens 12 provided in this application at an ambient temperature of 105°C. Wherein, L1 is the conventional optical lens, L2 is the optical lens 12 provided in this application, F1-R1 are the maximum stress values ​​of the effective optical diameter of the first optical surface, and F2-R2 are the maximum stress values ​​of the effective optical diameter of the second optical surface.

[0085] Table 1

[0086] L1 L2 F1-R1 1.0MPa 0.57MPa F2-R2 18MPa 1.4MPa

[0087] It can be seen that at an ambient temperature of 105℃, after the lens barrel 11 deforms, it applies force to a conventional optical lens. For a conventional optical lens, the maximum stress values ​​transmitted to the effective optical diameters of the first and second optical surfaces are 1.0 MPa and 18 MPa, respectively. However, for the optical lens 12 provided in this application, the maximum stress values ​​transmitted to the effective optical diameters of the first and second optical surfaces are 0.57 MPa and 1.4 MPa, respectively, both significantly lower than the stress values ​​corresponding to conventional optical lenses. Therefore, the optical lens 12 provided in this application can reduce the stress transmitted to the optical surfaces after the lens barrel 11 deforms.

[0088] Table 2 shows the PV values ​​of conventional optical lenses and the optical lens 12 provided in this application at an ambient temperature of 105°C. Wherein, L1 is a conventional optical lens, L2 is the optical lens 12 provided in this application, R1-PV is the PV value of the first optical surface, and R2-PV is the PV value of the second optical surface.

[0089] Table 2

[0090] L1 L2 R1-PV 10.8μm 2.9μm R2-PV 17.9μm 9.7μm

[0091] As shown in Table 2, at an ambient temperature of 105℃, the deformation of the lens barrel 11 applied force to a conventional optical lens, resulting in a PV value of 10.8 μm for the first optical surface and 17.9 μm for the second optical surface. However, at the same ambient temperature, when the deformation of the lens barrel 11 applied force to the optical lens 12 provided in this application, the PV value of the first optical surface of the optical lens 12 was 2.9 μm, and the PV value of the second optical surface was 9.7 μm. Therefore, when using the optical lens 12 provided in this application, the influence of the force from the lens barrel 11 on the optical surface of the lens is significantly smaller, meaning that the surface shape of the optical surface of the optical lens 12 provided in this application can remain more stable, thereby maintaining stable optical performance.

[0092] Please see also Figure 10 , Figure 10 This is a schematic diagram of the camera module in the embodiments of this application.

[0093] A second aspect of this application also provides a camera module 2, which includes the aforementioned optical component 1. By incorporating the optical component 1, the influence of external forces on the surface of the optical lenses in the camera module 2 can be reduced, thereby stabilizing the optical performance of the camera module 2.

[0094] In some embodiments, the camera module 2 further includes a housing 21, which can be used to fix the lens barrel 11 and provide space for connection with the circuit board.

[0095] In some embodiments, the lens barrel 11 and the housing 21 can be constructed as an integral component, such as by integral injection molding. In this case, the component jointly formed by the lens barrel 11 and the housing 21 can be regarded as the front shell of the entire camera module 2.

[0096] Please see Figure 11 , Figure 11 This is a structural diagram of a vehicle as an embodiment of this application.

[0097] Thirdly, embodiments of this application provide a mobile device, such as an in-vehicle camera device 3, which includes the aforementioned camera module 2 and is mounted on a vehicle 4. Thus, when the vehicle 4 is in motion, or when the vehicle 4 is in a high- or low-temperature environment, causing deformation of the lens barrel 11 of the camera module 2, the lug 13 provided on the optical lens 12 in this application can reduce the impact of the deformation of the lens barrel 11 on the optical lens 12, thereby enabling the camera module 2 to maintain high-quality imaging.

[0098] The optical components, camera modules, and mobile devices disclosed in the embodiments of this application have been described in detail above. This article uses specific examples to illustrate the principles and implementation methods of this application. The description of the above embodiments is only for the purpose of helping to understand the optical components, camera modules, and mobile devices of this application and their core ideas. At the same time, for those skilled in the art, there will be changes in the specific implementation methods and application scope based on the ideas of this application. Therefore, the content of this specification should not be construed as a limitation of this application.

Claims

1. An optical component, characterized in that, include: The lens barrel has a receiving space; An optical lens, comprising a main body and a supporting part, both the main body and the supporting part being located in the receiving space, the supporting part being arranged around the axis of the lens barrel and connected to the main body; At least two lugs are provided on the surface of the support portion away from the main body portion and are spaced apart around the axis of the lens barrel. The lugs are fixed to the inner wall of the lens barrel so that a gap is formed between the support portion and the inner wall of the lens barrel in the radial direction of the lens barrel. The end face of the lug facing the inner wall of the lens barrel is provided with a first recess, and the first recess communicates with the gap between the lug and the inner wall of the lens barrel.

2. The optical component according to claim 1, characterized in that, Along the axial direction of the lens barrel, the lug has a first surface and a second surface arranged opposite to each other, and at least one of the first surface and the second surface is provided with a second recess, which is recessed along the axial direction of the lens barrel.

3. The optical component according to claim 2, characterized in that, Both the first surface and the second surface are provided with the second recess, and the two second recesses are interconnected in the axial direction of the lens barrel.

4. The optical component according to claim 3, characterized in that, The first recessed portion is connected to the second recessed portion; And / or, the profile of the cross section of the second recess perpendicular to the axial direction of the lens barrel is circular.

5. The optical component according to claim 1, characterized in that, The main body has an object side and an image side arranged opposite to each other along the axial direction of the lens barrel. The object side includes a first optically effective area and a first non-optically effective area arranged around the first optically effective area. The first non-optically effective area is provided with a third recessed portion surrounding the first optically effective area. And / or, the main body has an object side and an image side arranged opposite to each other along the axial direction of the lens barrel, the image side including a second optically effective area and a second non-optically effective area arranged around the second optically effective area, the second non-optically effective area having a fourth recessed portion surrounding the second optically effective area.

6. The optical component according to claim 1, characterized in that, At least one of the two surfaces of the lug on the axial direction of the lens barrel is provided with a guide slope, the guide slope being inclined relative to the axis of the lens barrel, so that the dimension of the end of the lug away from the support portion on the axial direction of the lens barrel is smaller than the dimension of the rest of the lug on the axial direction of the lens barrel.

7. The optical component according to claim 6, characterized in that, The lug includes a first lug, a second lug, and two connecting portions. The first lug, the second lug, and the two connecting portions are all connected to the support portion. The first lug and the second lug are arranged opposite each other along the axial direction of the lens barrel. The two connecting portions are arranged opposite each other along the circumferential direction of the support portion and are connected between the first lug and the second lug. The first lug, the second lug, and the two connecting portions form the first recess. In the axial direction of the lens barrel, the thickness of the first lug is greater than the thickness of the second lug. The guide slope is provided on the side of the first lug away from the second lug.

8. The optical component according to any one of claims 1-7, characterized in that, The lens barrel and the optical lens are made of different materials; the lens barrel is made of metal or plastic, while the optical lens is made of glass or plastic.

9. A camera module, characterized in that, Includes the optical components as claimed in any one of claims 1-8.

10. A mobile device, characterized in that, Includes the camera module as described in claim 9.

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