Optical lens, camera module and assembling method of optical lens

Abstract

An optical lens (10) includes a first optical lens (111), a second lens part (12) and a light shield (13). The second lens part (12) includes a lens barrel (121) and at least one second optical lens (122) mounted in the lens barrel (121). The first optical lens (111) is disposed on the second lens part (12). The light shield (13) is supported above the first optical lens (111) and covers at least part of a side surface and an upper surface of the first optical lens (111). The light shield (13) and the first optical lens (111) are independently configured in structure, so that the state change of the light shield (13) has little effect on the state of the first optical lens (111). The application also relates to a camera module (100) including the optical lens (10) and an assembling method of the optical lens (10).

Description

Technical Field

[0001] This application relates to the field of optical lenses, and more particularly to optical lenses, camera modules, and methods for assembling optical lenses. Background Technology

[0002] With the widespread adoption of mobile electronic devices, the technology behind camera modules used in these devices to help users acquire images (such as videos or pictures) has developed and progressed rapidly. Especially with the development of smartphones, consumers' demands for shooting functions have become increasingly diverse, and their requirements for image quality have also increased, posing greater challenges to camera modules.

[0003] Optical lenses are one of the core components of camera modules, and performance optimization of camera modules is often accompanied by improvements in optical lenses. For example, as camera modules develop towards larger apertures, wider angles, and higher pixel counts, the number of lenses contained in optical lenses gradually increases, leading to more complex structural and optical designs. To address this challenge, a split-type lens has gradually emerged on the market.

[0004] Most existing split-type lenses currently consist of two lens parts: a first lens part and a second lens part [e.g., the split-type lenses disclosed in international patent publication (patent number WO2018126565A1) and Chinese patent (patent number CN108398760A)]. The first lens part includes a first optical lens and a light-shielding element integrated into the edge region of the first optical lens, while the second lens part includes a lens barrel and at least one second optical lens mounted within the lens barrel. Although this configuration of split-type lenses can meet the requirements of camera modules to a certain extent, some problems have been encountered in actual use.

[0005] Specifically, existing light-shielding components are structurally integrated into the edge region of the first optical lens using adhesives to prevent stray light and regulate the light-gathering aperture. However, in terms of spatial location (e.g., when the camera module is mounted on a smartphone), the light-shielding component is the outermost part (relative to the second lens section and the first optical lens), meaning it is the component most susceptible to accidents such as collisions.

[0006] It is understandable that if an unintentional collision causes the light-shielding component to shift or deform, it will directly affect the state of the first optical lens (including its position and shape), and thus affect the optical system configuration of the entire optical lens. In other words, the structural design of integrating the light-shielding component into the first optical lens reduces the reliability of the optical lens.

[0007] Furthermore, it was found during actual use that the light-shielding component was prone to detaching from the first optical lens, meaning that the bonding strength between the light-shielding component and the first optical lens was insufficient.

[0008] Furthermore, because the light-shielding component and the first optical lens are integrated into one unit, the installation precision requirements between the light-shielding component and the first optical lens are relatively high. In other words, the installation of existing split lenses is quite difficult.

[0009] Therefore, a more optimized split-type lens is needed. Summary of the Invention

[0010] One advantage of this application is that it provides an assembly method for an optical lens, a camera module, and an optical lens, wherein the light-shielding member and the first optical lens are structurally independently configured to reduce the impact of changes in the state of the light-shielding member on the state of the first optical lens.

[0011] Another advantage of this application is that it provides an assembly method for an optical lens, a camera module, and an optical lens, wherein the light-shielding member is suspended on the lens barrel of the second lens portion and there is a certain gap between the light-shielding member and the upper surface of the first optical lens.

[0012] Another advantage of this application is that it provides an assembly method for an optical lens, a camera module, and an optical lens, wherein the light-shielding member is securely mounted on the lens barrel of the second lens portion through its geometric configuration and fastening structure, so as to effectively prevent the light-shielding member from falling off.

[0013] Another advantage of this application is that it provides an assembly method for an optical lens, a camera module, and an optical lens, wherein the structural configuration of the light-shielding component reduces the installation requirements of the light-shielding component and improves the ease of installation of the optical lens.

[0014] Other advantages and features of this application will become apparent from the following description and can be realized by means and combinations particularly pointed out in the claims.

[0015] To achieve at least one of the above objectives or advantages, this application provides an optical lens comprising:

[0016] First optical lens;

[0017] The second lens portion includes a lens barrel and at least one second optical lens mounted within the lens barrel, wherein the first optical lens is disposed on the second lens portion; and

[0018] A light-shielding element is suspended above the first optical lens and covers at least a portion of the side surface and the upper surface of the first optical lens.

[0019] In the optical lens according to this application, there is a certain gap between the light-shielding member and the upper surface of the first optical lens.

[0020] In the optical lens according to this application, the gap between the light-shielding member and the upper surface of the first optical lens is in the range of 5μm-10μm.

[0021] In the optical lens according to this application, the size of the gap between the light-shielding member and the upper surface of the first optical lens gradually decreases from the edge of the first optical lens toward its central region.

[0022] In the optical lens according to this application, the lens barrel includes a support platform formed on its side, and the light-shielding member is mounted on the support platform by a fastening structure.

[0023] In the optical lens according to this application, the height of the support platform is lower than the height of the upper surface of the lens barrel.

[0024] In the optical lens according to this application, the support platform is integrally formed on the side of the lens barrel.

[0025] In the optical lens according to this application, the light-shielding member includes a support portion and a light-shielding portion. The support portion is mounted on the support platform by the fastening structure, and the light-shielding portion extends upward and inward from the support portion. In such a way, the light-shielding member is suspended above the first optical lens and the light-shielding member covers at least a portion of the side surface and the upper surface of the first optical lens.

[0026] In the optical lens according to this application, the distance between the inner side of the support and the outer side of the first optical lens ranges from 60μm to 800μm.

[0027] In the optical lens according to this application, the inner side of the support includes a mating surface that fits against the side surface of the lens barrel, and the length of the mating surface in the optical axis direction set by the optical lens ranges from 80μm to 130μm.

[0028] In the optical lens according to this application, the length of the mating surface in the direction of the optical axis set by the optical lens ranges from 100μm to 120μm.

[0029] In the optical lens according to this application, the inner side of the support portion further includes a margin surface extending upward from the mating surface, the length dimension of the margin surface in the optical axis direction set by the optical lens being in the range of 4μm-10μm.

[0030] In the optical lens according to this application, the inner side surface of the support portion and its bottom surface are transitioned by a chamfer.

[0031] In the optical lens according to this application, the fitting gap between the mating surface and the side surface of the lens barrel is in the range of 5μm-10μm.

[0032] In the optical lens according to this application, the fastening structure includes an adhesive disposed between the bottom surfaces of the support platform and the support portion.

[0033] In the optical lens according to this application, the lens barrel further includes an overflow groove formed at the transition between its side surface and the support platform.

[0034] In the optical lens according to this application, the fastening structure includes at least one recess formed in the support platform and at least one protrusion formed in the bottom surface of the support portion, so that the support portion is fastened to the support platform at least partially by the engagement between the at least one recess and the at least one protrusion.

[0035] In the optical lens according to this application, the fastening structure includes at least one protrusion formed on the support platform and at least one groove formed on the bottom surface of the support portion, so that the support portion is fastened to the support platform at least partially by the engagement between the at least one groove and the at least one protrusion.

[0036] In the optical lens according to this application, the fastening structure further includes an adhesive disposed between the support and the support platform.

[0037] In the optical lens according to this application, the lens barrel further includes an overflow groove formed at the transition between its side surface and the support platform.

[0038] In the optical lens according to this application, the fastening structure includes a first threaded portion formed on the inner side of the support portion and a second threaded portion formed on the side surface of the lens barrel, so as to attach the light shield to the side surface of the lens barrel at least partially through the engagement between the first threaded portion and the second threaded portion, and the fastening structure further includes an adhesive disposed between the support platform and the bottom surface of the support portion.

[0039] According to another aspect of this application, this application also provides a camera module, which includes:

[0040] The optical lens as described above; and

[0041] A photosensitive assembly, wherein the optical lens is positioned on the photosensitive path of the photosensitive assembly.

[0042] In the camera module according to this application, the camera module further includes a driving element disposed between the optical lens and the photosensitive component, the driving element being used to drive the optical lens to move.

[0043] According to another aspect of this application, a method for assembling an optical lens is also provided, comprising:

[0044] A first optical lens and a second lens portion are provided, wherein the second lens portion includes a lens barrel and at least one second optical lens mounted within the lens barrel;

[0045] The first optical lens, the second lens portion, and the photosensitive component are prepositioned such that the first optical lens, the at least one second optical lens, and the photosensitive component constitute an imaging system;

[0046] Based on the imaging quality of the images acquired by the imaging system, the relative positional relationship between the first optical lens and the second lens portion is adjusted;

[0047] In response to the imaging quality of the image acquired by the imaging system meeting preset requirements, the relative positional relationship between the first optical lens and the second lens portion is fixed; and

[0048] A light-shielding member is mounted on the lens barrel of the second lens portion such that the light-shielding member is suspended above the first optical lens and the light-shielding member covers at least a portion of the side surface and the upper surface of the first optical lens.

[0049] In the assembly method according to this application, before fixing the relative positional relationship between the first optical lens and the second lens portion, the method further includes: coating an adhesive on the upper surface of the lens barrel of the second lens portion; and adhering the first optical lens to the upper surface of the lens barrel.

[0050] In the assembly method according to this application, fixing the relative positional relationship between the first optical lens and the second lens portion includes: curing the adhesive disposed between the first optical lens and the upper surface of the lens barrel to fix the relative positional relationship between the first optical lens and the second lens portion.

[0051] In the assembly method according to this application, the lens barrel includes a support platform formed on its side, wherein mounting a light shield to the second lens portion of the lens barrel includes: applying an adhesive to the support platform; and attaching the light shield to the adhesive to mount the light shield to the support platform by means of the adhesive.

[0052] In the assembly method according to this application, the lens barrel includes a support platform formed on its side, the bottom surface of the light shield has at least one protrusion, and the upper surface of the support platform has at least one groove, wherein mounting the light shield to the second lens portion of the lens barrel includes: engaging at least one protrusion of the light shield with at least one groove of the support platform.

[0053] In the assembly method according to this application, the lens barrel includes a support platform formed on its side, the bottom surface of the light shield is provided with at least one groove, and the upper surface of the support platform is provided with at least one protrusion, wherein mounting the light shield to the second lens portion of the lens barrel includes: engaging at least one groove of the light shield with at least one protrusion of the support platform.

[0054] In the assembly method according to this application, the lens barrel includes a support platform formed on its side, the inner side of the light shield is provided with a first threaded portion, and the side surface of the lens barrel is provided with a second threaded portion. The lens barrel for mounting the light shield to the second lens portion includes: applying an adhesive to the support platform; screwing the first threaded portion of the light shield to the second threaded portion of the lens barrel; and attaching the adhesive to the bottom surface of the light shield.

[0055] The further objectives and advantages of this application will become fully apparent from the following description and accompanying drawings.

[0056] These and other objects, features and advantages of this application are fully apparent from the following detailed description, the accompanying drawings and the claims. Attached Figure Description

[0057] The above and other objects, features, and advantages of this application will become more apparent from the more detailed description of the embodiments of this application in conjunction with the accompanying drawings. The drawings are provided to further illustrate the embodiments of this application and form part of the specification. They are used together with the embodiments of this application to explain this application and do not constitute a limitation thereof. In the drawings, the same reference numerals generally represent the same components or steps.

[0058] Figure 1 The illustration shows a schematic diagram of an optical lens according to an embodiment of this application.

[0059] Figure 2 The illustration shows an enlarged schematic diagram of the layout of the optical lens according to an embodiment of this application.

[0060] Figure 3 The illustration shows a partially enlarged schematic diagram of a modified embodiment of the optical lens according to an embodiment of this application.

[0061] Figure 4The illustration shows a partially enlarged schematic diagram of another modified embodiment of the optical lens according to an embodiment of this application.

[0062] Figure 5 The illustration shows a partially enlarged schematic diagram of yet another modified embodiment of the optical lens according to an embodiment of this application.

[0063] Figure 6 The illustration shows an assembly diagram of the optical lens according to an embodiment of this application.

[0064] Figure 7 The illustration shows a schematic diagram of a camera module according to an embodiment of this application. Detailed Implementation

[0065] Hereinafter, exemplary embodiments according to this application will be described in detail with reference to the accompanying drawings. Obviously, the described embodiments are merely some embodiments of this application, and not all embodiments of this application. It should be understood that this application is not limited to the exemplary embodiments described herein.

[0066] Exemplary optical lens

[0067] like Figure 1 As shown, an optical lens according to an embodiment of this application is illustrated, wherein the optical lens 10 is a split lens, comprising at least two lens portions. For ease of explanation, in this embodiment, the optical lens 10 comprising two lens portions is taken as an example, that is, the optical lens 10 comprising a first lens portion 11 and a second lens portion 12 is taken as an example. Of course, those skilled in the art should understand that the optical lens 10 according to the embodiment of this application may also include a greater number of lens portions, and this is not limited to this application.

[0068] like Figure 1 As shown, in this embodiment of the application, the first lens portion 11 includes a first optical lens 111, and the second lens portion 12 includes a lens barrel 121 and at least one second optical lens 122 mounted within the lens barrel 121. More specifically, in... Figure 1In the illustrated optical lens 10, the first optical lens 111 is disposed on the upper surface of the lens barrel 121. For example, the first optical lens 111 is attached to the upper surface of the lens barrel 121 by an adhesive 141. The adhesive 141 can be an adhesive suitable for curing under ultraviolet light; or an adhesive suitable for curing under visible light; or an adhesive suitable for curing under heat; or an adhesive suitable for curing under moisture contact. The selection of this adhesive is not limited to this application. Furthermore, those skilled in the art should understand that in other examples of this application, the first optical lens 111 can also be disposed at other locations on the second lens portion 12. For example, the first optical lens 111 can be disposed on the upper surface of the second optical lens 122 located at the topmost side. This is not limited to this application.

[0069] It should be understood that in this embodiment, the first lens portion 11 is implemented as a "bare lens," comprising only one first optical lens 111. The first optical lens 111 includes an optical region participating in optical imaging and a structural region surrounding the optical region, as shown in... Figure 1 In the illustrated optical lens 10, the adhesive 141 is disposed between the edge region of the lower surface of the structural region and the upper surface of the lens barrel 121. Conversely, in this embodiment, the number of the second optical lenses 122 is not limited to this application; it can be 4, 5, 6, 7, or more.

[0070] To prevent stray light from passing through the first optical lens 111 and entering the interior of the optical lens, such as Figure 1 As shown in this embodiment, the optical lens 10 further includes a light-shielding member 13, wherein the light-shielding member 13 is suspended above the first optical lens 111 and the light-shielding member 13 shields at least a portion of the side surface and the upper surface of the first optical lens 111. It should be particularly noted that in this embodiment, there is a certain gap between the light-shielding member 13 and the upper surface of the first optical lens 111, that is, the light-shielding member 13 is suspended above the upper surface of the first optical lens 111. It should be understood that by suspending the light-shielding member 13 above the first optical lens 111, the influence of changes in the state of the light-shielding member 13 on the state of the first optical lens 111 can be effectively reduced. For example, when the light-shielding member 13 is displaced or deformed due to external force, it will not have a direct impact on the state (including its position and shape) of the first optical lens 111. In other words, this configuration can protect the first optical lens 111 from being directly affected by external force or indirectly affected by the light-shielding member 13, thereby improving the reliability of the optical lens.

[0071] More specifically, in this embodiment, the gap between the light-shielding member 13 and the upper surface of the first optical lens 111 ranges from 5 μm to 10 μm. Furthermore, preferably, the size of the gap between the light-shielding member 13 and the upper surface of the first optical lens 111 gradually decreases from the edge of the first optical lens 111 towards its central region; that is, the gap between the light-shielding member 13 and the upper surface of the first optical lens 111 decreases from the outer side towards the optical axis of the optical lens, thereby significantly reducing stray light incident from the top of the light-shielding member 13.

[0072] Furthermore, such as Figure 2 As shown, in this embodiment, the light-shielding member 13 includes a support portion 131 and a light-shielding portion 132. The support portion 131 is mounted to the lens barrel 121 of the first lens portion 11 by a fastening structure 14. The light-shielding portion 132 extends upward and inward from the support portion 131. In this way, the light-shielding member 13 is suspended above the first optical lens 111, and the light-shielding member 13 shields at least a portion of the side surface and the upper surface of the first optical lens 111. In particular, in this embodiment, half of the cross-sectional shape of the light-shielding member 13 is an inverted L-shape, wherein the light-shielding member 13 has a longitudinally extending portion and a transversely extending portion. The longitudinally extending portion forms the support portion 131, and the transverse portion and part of the longitudinally extending portion form the light-shielding portion 132. Figure 1 As shown, the light-shielding part 132 forms a large space to accommodate the edge region of the first optical lens 111. In particular, in this embodiment, the distance between the inner side of the support part 131 and the outer side of the first optical lens 111 is in the range of 60μm-800μm. With such a positional configuration, the influence of the state change of the light-shielding member 13 on the state of the first optical lens 111 can be further reduced.

[0073] It is worth mentioning that, in the embodiments of this application, the support part 131 and the light-shielding part 132 can be integrally formed by injection molding or other processes (that is, the light-shielding part 13 is an integrally formed component); or, the support part 131 and the light-shielding part 132 are implemented as two independent components and assembled to form the light-shielding part 13.

[0074] Furthermore, in this embodiment, the light-shielding member 13 is mounted to the side of the lens barrel 121 via a fastening structure 14. Figure 2As shown, the lens barrel 121 includes a support platform 123 formed on its side, and the support portion 131 of the light-shielding member 13 is mounted on the support platform 123 by a fastening structure 14. It should be understood that in this embodiment, the support point of the light-shielding member 13 relies entirely on the support platform 123 of the lens barrel 121, while the first optical lens 111, being structurally independent of the light-shielding member 13, does not provide a support point for its mounting. Specifically, in this embodiment, the height of the support platform 123 is lower than the height of the upper surface of the lens barrel 121, so that when the support portion 131 of the light-shielding member 13 is disposed on the support platform 123, the light-shielding portion 132 of the light-shielding member 13 can be suspended more closely to the upper surface of the first optical lens 111, thereby reducing the overall height of the optical lens 10. In other words, in this embodiment of the application, the position of the support platform 123 is arranged such that the light-shielding part 132 of the light-shielding member 13 can be suspended above the upper surface of the first optical lens 111 and the gap between the light-shielding part 132 and the upper surface of the first optical lens 111 is small, so as to more effectively prevent stray light.

[0075] It is worth noting that in other examples of this application, the height of the support platform 123 may be set to be higher than or flush with the upper surface of the lens barrel 121, and this is not limited to this application. In particular, when the height of the support platform 123 is flush with the upper surface of the lens barrel 121, the support platform 123 may be implemented as at least a portion of the upper surface of the lens barrel 121. Figure 1 As shown, in this embodiment, the support platform 123 has a ring structure. It can be a single support platform 123 surrounding the side of the lens barrel 121, or multiple support platforms 123 (components) can be distributed in a ring-like pattern at intervals on the side of the lens barrel 121. Furthermore, in this embodiment, the support platform 123 can be integrally formed on the side of the lens barrel 121, or it can be installed on the side of the lens barrel 121 as a separate accessory. This is not limited to the present application.

[0076] In order for the light-shielding member 13 to be stably mounted on the support platform 123, in this embodiment of the application, the light-shielding member 13 has a specific geometric configuration. Specifically, as... Figure 2As shown, the inner side of the support portion 131 includes a mating surface 133 that fits against the side surface of the lens barrel 121. The length of the mating surface 133 in the optical axis direction set by the optical lens 10 ranges from 80μm to 130μm (more specifically, the length range can be 100μm to 120μm). Through the relatively long mating surface 133, the inner side of the support portion 131 can fit tightly against the side surface of the lens barrel 121, thereby providing a better anti-detachment effect for the light-shielding member 13, especially preventing the light-shielding member 13 from detaching due to forces perpendicular to the optical axis. Specifically, due to limitations in manufacturing process precision and the need for anti-detachment, in this embodiment, the mating gap between the mating surface 133 and the side surface of the lens barrel 121 ranges from 5μm to 10μm.

[0077] Furthermore, in this embodiment, the inner surface of the support portion 131 further includes a retaining surface 134 extending upward from the mating surface 133, wherein the extending direction of the retaining surface 134 is consistent with the extending direction of the mating surface 133. In some installation schemes, the mating surface 133 and the retaining surface 134 can be simultaneously and adaptably fitted to the inner surface of the lens barrel 121 to further enhance the bonding strength between the two and improve the anti-detachment effect. In this embodiment, the length dimension of the retaining surface 134 in the optical axis direction set by the optical lens 10 is at least 4μm. In some embodiments, the length dimension of the retaining surface 134 in the optical axis direction set by the optical lens 10 can be set to be smaller, for example, 4μm-10μm.

[0078] Furthermore, in this embodiment, the inner side surface of the support portion 131 is chamfered to its bottom surface. It should be understood that when the light-shielding member 13 is mounted on the support platform 123, the chamfer can guide the installation of the light-shielding member 13, thereby reducing the requirement for installation accuracy.

[0079] To further improve the bonding strength between the light-shielding member 13 and the support platform 123, in this embodiment, the optical lens 10 further provides a fastening structure 14 between the support platform 123 and the light-shielding member 13. For example... Figure 1 As shown in this embodiment, the fastening structure 14 includes an adhesive 141 disposed between the bottom surfaces of the support platform 123 and the support portion 131. To account for potential adhesive overflow, the lens barrel 121 is further configured with an adhesive overflow groove 124 formed at the transition between its side surface and the support platform 123.

[0080] In summary, through the geometric configuration of the light-shielding member 13 and the fastening structure 14, the support portion 131 of the light-shielding member 13 can be stably fixed to the support platform 123. Simultaneously, the light-shielding portion 132 of the light-shielding member 13 is suspended above the upper surface of the first optical lens 111, thus shielding at least a portion of the side surface and upper surface of the first optical lens 111. That is, in this embodiment, the support point of the light-shielding member 13 relies entirely on the support platform 123 of the lens barrel 121, while the first optical lens 111, being structurally independent of the light-shielding member 13, does not provide a support point for its installation. This structural configuration protects the first optical lens 111 from direct external force or indirect influence from the light-shielding member 13, thereby improving the reliability of the optical lens.

[0081] To further enhance the bonding strength between the light-shielding member 13 and the support platform 123, in other examples of this application, the fastening structure 14 may also include other fastening reinforcement mechanisms. For example, in... Figure 3 In the illustrated modified embodiment of the optical lens 10, in addition to the adhesive 141, the fastening structure 14 further includes at least one protrusion 142 formed protruding from the support platform 123 and at least one groove 143 formed recessed from the bottom surface of the support portion 131, so that the support portion 131 is fastened to the support platform 123 at least partially through the engagement between the at least one groove 143 and the at least one protrusion 142. For example, in such... Figure 4 In another modified embodiment of the optical lens 10 shown, in addition to the adhesive 141, the fastening structure 14 includes at least one recess 143 formed in the support platform 123 and at least one protrusion 142 formed in the bottom surface of the support portion 131, so that the support portion 131 is fastened to the support platform 123 at least partially by the engagement between the at least one recess 143 and the at least one protrusion 142. For example, in such... Figure 5 In another modified embodiment of the illustrated optical lens 10, in addition to the adhesive 141, the fastening structure 14 includes a first threaded portion 142A formed on the inner side of the support portion 131 and a second threaded portion 143A formed on the side surface of the lens barrel 121, so as to attach the light-shielding member 13 to the side surface of the lens barrel 121 at least partially through the engagement between the first threaded portion 142A and the second threaded portion 143A. This method can further strengthen the bonding force between the light-shielding member 13 and the lens barrel 121, reducing the risk of the light-shielding member 13 detaching.

[0082] Indicative camera module

[0083] According to another aspect of this application, a camera module is also provided. Figure 7 The illustration shows a schematic diagram of the camera module according to an embodiment of this application, such as... Figure 7 As shown, the camera module 100 includes: a photosensitive component 10 and an optical lens 10 held in the photosensitive path of the photosensitive component 10. Here, in... Figure 7 In the illustrated camera module 100, the camera module 100 is implemented as a fixed-focus camera module, that is, the relative positional relationship between the optical lens 10 and the photosensitive component 10 remains constant.

[0084] Those skilled in the art will understand that the type of camera module 100 in this embodiment is not limited to that application. For example, in other examples of this application, the camera module 100 can also be implemented as a dynamic focus camera module, that is, the camera module 100 further includes a driving element (not shown in the figure) disposed on the optical lens 10 and the photosensitive component 10, wherein the driving element is used to carry and drive the optical lens 10 to move along the photosensitive path, so as to change the relative positional relationship between the optical lens 10 and the photosensitive component 10. As another example, the camera module 100 can also be implemented as a stabilized camera module, that is, the camera module 100 further includes a stabilization motor disposed on the optical lens 10 and the photosensitive component 10, so as to achieve stabilization function through the stabilization motor. Furthermore, the camera module 100 can also include components such as prisms to form a periscope camera module.

[0085] Schematic diagram of optical lens assembly method

[0086] According to another aspect of this application, a method for assembling an optical lens 10 is also provided. Figure 6 The figure illustrates an assembly schematic of the optical lens 10 according to an embodiment of this application, as shown below. Figure 6 As shown, the assembly process of the optical lens 10 includes:

[0087] First, a first optical lens 111 and a second lens portion 12 are provided, wherein the second lens portion 12 includes a lens barrel 121 and at least one second optical lens 122 installed in the lens barrel 121;

[0088] Next, the first optical lens 111, the second lens portion 12, and the photosensitive component are prepositioned such that the first optical lens 111, the at least one second optical lens 122, and the photosensitive component constitute an imaging system.

[0089] Then, based on the imaging quality of the image acquired by the imaging system, the relative positional relationship between the first optical lens 111 and the second lens portion 12 is adjusted. For example, firstly, an image of the target under test is acquired through the imaging system; then, the forming quality and adjustment amount of the optical lens 10 are calculated using image imaging quality calculation methods such as SFR and MTF; then, the relative positional relationship between the first optical lens 111 and the second lens portion 12 is adjusted in real time in at least one direction (at least one direction refers to the xyz direction and the directions of rotation around the xyz axis respectively) according to the adjustment amount.

[0090] Furthermore, in response to the imaging quality of the image acquired by the imaging system meeting the preset requirements, the relative positional relationship between the first optical lens 111 and the second lens portion 12 is fixed.

[0091] Then, a light-shielding member 13 is installed on the lens barrel 121 of the second lens portion 12 such that the light-shielding member 13 is suspended and supported on the lens barrel 121 and the light-shielding member 13 covers at least a portion of the side surface and the upper surface of the first optical lens 111.

[0092] In one example of the above assembly process, before fixing the relative positional relationship between the first optical lens 111 and the second lens portion 12, the assembly further includes: applying an adhesive 141 to the upper surface of the lens barrel 121 of the second lens portion 12; and adhering the first optical lens 111 to the upper surface of the lens barrel 121.

[0093] In one example of the above assembly process, fixing the relative positional relationship between the first optical lens 111 and the second lens portion 12 includes: curing the adhesive 141 disposed between the upper surfaces of the first optical lens 111 and the lens barrel 121 to fix the relative positional relationship between the first optical lens 111 and the second lens portion 12.

[0094] In one example of the above assembly process, the lens barrel 121 includes a support platform 123 formed on its side, wherein mounting the light shield 13 to the second lens portion 12 of the lens barrel 121 includes: applying an adhesive 141 to the support platform 123; and attaching the light shield 13 to the adhesive 141 to mount the light shield 13 to the support platform 123 by means of the adhesive 141.

[0095] In one example of the above assembly process, the lens barrel 121 includes a support platform 123 formed on its side, the bottom surface of the light shield 13 is provided with at least one protrusion 142, and the upper surface of the support platform 123 is provided with at least one groove 143. The lens barrel 121 that mounts the light shield 13 to the second lens portion 12 includes: engaging at least one protrusion 142 of the light shield 13 with at least one groove 143 of the support platform.

[0096] In one example of the above assembly process, the lens barrel 121 includes a support platform 123 formed on its side, the bottom surface of the light shield 13 is provided with at least one groove 143, and the upper surface of the support platform 123 is provided with at least one protrusion 142. The lens barrel 121 that mounts the light shield 13 to the second lens portion 12 includes: engaging at least one groove 143 of the light shield 13 with at least one protrusion 142 of the support platform.

[0097] In one example of the above assembly process, the lens barrel 121 includes a support platform 123 formed on its side, the inner side of the light shield 13 is provided with a first threaded portion 142A, and the side surface of the lens barrel 121 is provided with a second threaded portion 143A. The lens barrel 121 for mounting the light shield 13 to the second lens portion 12 includes: applying an adhesive 141 to the support platform 123; screwing the first threaded portion 142A of the light shield 13 to the second threaded portion 143A of the lens barrel 121; and attaching the adhesive 141 to the bottom surface of the light shield 13.

[0098] In summary, the assembly method of the optical lens 10 based on the embodiments of this application has been clarified, which can prepare the optical lens 10 as described above and its variants.

[0099] Those skilled in the art should understand that the embodiments of the present invention described above and shown in the accompanying drawings are merely examples and do not limit the present invention. The objectives of the present invention have been fully and effectively achieved. The functions and structural principles of the present invention have been demonstrated and explained in the embodiments, and any variations or modifications may be made to the implementation of the present invention without departing from the stated principles.

Claims

1. An optical lens, characterized in that, include: First optical lens; The second lens portion includes a lens barrel and at least one second optical lens mounted within the lens barrel, wherein the first optical lens is disposed on the upper surface of the lens barrel; and A light-shielding member is suspended above the first optical lens, wherein the lens barrel includes a support platform formed on its side, the light-shielding member is mounted on the support platform by a fastening structure, wherein the height of the support platform is lower than the height of the upper surface of the lens barrel, wherein the light-shielding member does not cover the optical surface of the first optical lens, and the lower end face of the light-shielding member is inclined toward the upper surface of the first optical lens at the end of the middle region, such that the size of the gap between the upper surface of the first optical lens and the light-shielding member gradually decreases from the edge of the first optical lens toward the middle region.

2. The optical lens according to claim 1, wherein, There is a certain gap between the upper surface of the first optical lens and the light-shielding member.

3. The optical lens according to claim 2, wherein, The gap between the upper surface of the first optical lens and the light-shielding element is in the range of 5μm-10μm.

4. The optical lens according to claim 1, wherein, The support platform is integrally formed on the side of the lens barrel.

5. The optical lens according to claim 1, wherein, The light-shielding member includes a support portion and a light-shielding portion. The support portion is mounted on the support platform by the fastening structure. The light-shielding portion extends upward and inward from the support portion. In this way, the light-shielding member is suspended above the first optical lens and covers at least a portion of the side surface and the upper surface of the first optical lens.

6. The optical lens according to claim 5, wherein, The distance between the inner side of the support and the outer side of the first optical lens ranges from 60μm to 800μm.

7. The optical lens according to claim 5, wherein, The inner side of the support includes a mating surface that fits against the side surface of the lens barrel, and the length of the mating surface in the direction of the optical axis set by the optical lens ranges from 80μm to 130μm.

8. The optical lens according to claim 7, wherein, The length of the mating surface in the direction of the optical axis set by the optical lens ranges from 100μm to 120μm.

9. The optical lens according to claim 7, wherein, The inner side of the support further includes a margin surface extending upward from the mating surface, the length of which ranges from 4μm to 10μm in the direction of the optical axis set by the optical lens.

10. The optical lens according to claim 7, wherein, The inner side of the support and its bottom surface are connected by a chamfer.

11. The optical lens according to claim 7, wherein, The fit clearance between the tight-fitting surface and the side surface of the lens barrel is in the range of 5μm-10μm.

12. The optical lens according to claim 7, wherein, The fastening structure includes an adhesive disposed between the bottom surface of the support and the support platform.

13. The optical lens according to claim 9, wherein, The lens barrel further includes an overflow groove formed at the transition between its side surface and the support platform.

14. The optical lens according to claim 5, wherein, The fastening structure includes at least one recess formed in the support platform and at least one protrusion formed on the bottom surface of the support portion, so that the support portion is fastened to the support platform at least partially by the engagement between the at least one recess and the at least one protrusion.

15. The optical lens according to claim 5, wherein, The fastening structure includes at least one protrusion formed on the support platform and at least one groove formed on the bottom surface of the support portion, so that the support portion is fastened to the support platform at least partially by the engagement between the at least one groove and the at least one protrusion.

16. The optical lens according to claim 14 or 15, wherein, The fastening structure further includes an adhesive disposed between the support portion and the support platform.

17. The optical lens according to claim 16, wherein, The lens barrel further includes an overflow groove formed at the transition between its side surface and the support platform.

18. The optical lens according to claim 5, wherein, The fastening structure includes a first threaded portion formed on the inner side of the support portion and a second threaded portion formed on the side surface of the lens barrel, so as to attach the light shield to the side surface of the lens barrel at least partially through the engagement between the first threaded portion and the second threaded portion. The fastening structure further includes an adhesive disposed between the support platform and the bottom surface of the support portion.

19. A camera module, characterized in that, Includes the optical lens according to any one of claims 1-18.

20. A method for assembling an optical lens according to any one of claims 1-18, characterized in that, include: A first optical lens and a second lens portion are provided, wherein the second lens portion includes a lens barrel and at least one second optical lens mounted within the lens barrel; The first optical lens, the second lens portion, and the photosensitive component are prepositioned such that the first optical lens, the at least one second optical lens, and the photosensitive component constitute an imaging system; Based on the imaging quality of the images acquired by the imaging system, the relative positional relationship between the first optical lens and the second lens portion is adjusted; In response to the imaging quality of the image acquired by the imaging system meeting preset requirements, the relative positional relationship between the first optical lens and the second lens portion is fixed; and A light-shielding member is mounted on the lens barrel of the second lens portion such that the light-shielding member is suspended above the first optical lens and the light-shielding member covers at least a portion of the side surface and the upper surface of the first optical lens.

21. The method for assembling an optical lens according to claim 20, wherein, Before fixing the relative positional relationship between the first optical lens and the second lens portion, the method further includes: applying an adhesive to the upper surface of the lens barrel of the second lens portion; and The first optical lens is adhered to the upper surface of the lens barrel.

22. The method for assembling an optical lens according to claim 21, wherein, Fixing the relative positional relationship between the first optical lens and the second lens portion includes: The adhesive, which is fixed between the upper surface of the lens barrel and the first optical lens, is used to fix the relative positional relationship between the first optical lens and the second lens portion.

23. The method for assembling an optical lens according to claim 20, wherein, The lens barrel includes a support platform formed on its side, wherein the lens barrel on which the light-shielding member is mounted to the second lens portion includes: Apply an adhesive to the support platform; and The light-shielding element is attached to the adhesive to mount it onto the support platform via the adhesive.

24. The method for assembling an optical lens according to claim 20, wherein, The lens barrel includes a support platform formed on its side, the bottom surface of the light-shielding member has at least one protrusion, and the upper surface of the support platform has at least one groove. The lens barrel on which the light-shielding member is mounted to the second lens portion includes: At least one protrusion of the light-shielding member engages with at least one groove of the support platform.

25. The method for assembling an optical lens according to claim 20, wherein, The lens barrel includes a support platform formed on its side, the bottom surface of the light-shielding member has at least one groove, and the upper surface of the support platform has at least one protrusion. The lens barrel on which the light-shielding member is mounted to the second lens portion includes: At least one groove of the light-shielding member engages with at least one protrusion of the support platform.

26. The method for assembling an optical lens according to claim 20, wherein, The lens barrel includes a support platform formed on its side, the inner surface of the light-shielding member is provided with a first threaded portion, and the side surface of the lens barrel is provided with a second threaded portion. The lens barrel on which the light-shielding member is mounted to the second lens portion includes: Apply an adhesive to the support platform; Screw the first threaded portion of the light-shielding member to the second threaded portion of the lens barrel; and The bottom surface of the light-shielding element is attached to the adhesive.

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