Periscope camera module and its lens assembly

Abstract

The present invention provides a periscope camera module and a lens assembly thereof, wherein a lens barrel and a carrier of the lens assembly of the periscope camera module are designed in an integrated manner to form a carrier, so as to improve the molding accuracy of the lens assembly of the periscope camera module.

Description

Technical Field

[0001] The present invention relates to the field of optical imaging technology, and in particular to a periscope camera module. The present invention further relates to a lens assembly for the periscope camera module. Background Art

[0002] Camera modules are an indispensable part of mobile electronic devices. With the further development of camera module technology, users' requirements for camera modules are becoming higher, more refined and targeted. The development of camera products not only needs to meet the requirements of high performance, but also needs to meet the requirements of miniaturization and lightness.

[0003] Among them, the periscope camera module is a product used for telephoto photography. By adding an optical path turning module (reflector, prism, etc.) in front of the lens module, the light beam incident vertically to the camera module is turned into a light beam emitted in a vertical direction, and then passes through the lens module to reach the photosensitive chip, where the light beam undergoes photoelectric conversion and imaging. The periscope camera module folds the light path through the optical path turning module, which can achieve long-focal-length shooting while reducing the height of the camera module. The camera module can be converted from being installed vertically on the electronic device to being installed horizontally, thereby reducing the impact on the thickness of the electronic device.

[0004] The lens (or lens assembly) of the periscope camera module usually includes a movable part, which can be driven by the driving assembly to move along its optical axis to achieve the focus and / or zoom function of the periscope camera module. The movable part of the lens of the periscope camera module generally includes a lens group, a lens barrel and a carrier. The lens group is installed in the lens barrel. The carrier carries the lens barrel and the lens group and moves under the driving force of the driving assembly. Therefore, the lens group needs to be installed in the base of the periscope camera module through the lens barrel and the carrier.

[0005] However, the dual setting of the lens barrel and the carrier not only increases the weight of the lens part, but also increases the steps of assembling the camera module, which not only increases the manufacturing cost, but also creates many uncontrollable risks. For example, the lens barrel and the carrier need to be fixed with glue. When the lens is heavy or after long-term use, the lens barrel and the carrier may fall off and separate from each other. In addition, the glue between the lens barrel and the carrier is generally applied around the outer wall of the lens barrel. The stress generated after the glue is cured may cause the lens barrel to deform, affecting the imaging quality of the lens. Summary of the invention

[0006] The main advantage of the present invention is to provide a periscope camera module, the lens barrel and the carrier of the lens assembly of which adopt an integrated design to form a carrier, so as to improve the molding accuracy of the lens assembly of the periscope camera module. It can be understood that the lens barrel and the carrier of the lens assembly of the periscope camera module of the present invention adopt an integrated design, which can also avoid the problem that the existing lens barrel and the carrier have to be fixed by glue dispensing, so that the stress generated after the glue is cured causes the lens barrel to deform and / or the structure of the carrier to deform, affecting the imaging quality.

[0007] Another advantage of the present invention is that it provides a periscope camera module, in which a groove is opened on the side wall of the carrier of the lens assembly and a hollow groove is arranged in the groove, so as to reduce the weight of the carrier and reduce the wall thickness of the preset area of ​​the carrier, while also improving the uniformity of the wall thickness, thereby improving the molding accuracy and roundness of the carrier.

[0008] Another advantage of the present invention is that it provides a periscope camera module, wherein the carrier of the lens assembly of the periscope camera module of the present invention has an air pressure balance channel, which is connected to the groove to which the magnet is attached, so as to avoid the pressure difference between the inside and outside of the magnet and the loosening of the magnet under the action of pressure.

[0009] Other objects and features of the present invention will be fully apparent from the following detailed description.

[0010] According to one aspect of the present invention, a lens assembly of the present invention having at least one of the aforementioned advantages comprises:

[0011] a carrier; and

[0012] A lens group, wherein the carrier forms a mounting cavity, the lens group includes a plurality of lenses, wherein the plurality of lenses of the lens group are sequentially arranged in the mounting cavity of the carrier along the optical axis direction of the lens group, wherein the outer wall of the carrier forms at least one magnet mounting portion and two oppositely arranged second outer portions, wherein the two second outer portions extend respectively from the at least one magnet mounting portion, wherein the at least one magnet mounting portion forms a mounting groove so that the magnet can be arranged in the mounting groove, wherein the mounting groove has a bottom wall and first side walls extending respectively from opposite sides of the bottom wall, wherein the bottom wall forms a hollow area and a fixed area, wherein the hollow area has a hollow groove, and the fixed area at least partially surrounds the hollow area, wherein the magnet is arranged in the fixed area.

[0013] The above and other advantages of the present invention will be fully reflected in conjunction with the following description and the accompanying drawings.

[0014] The above and other advantages and features of the present invention are fully reflected in the following detailed description of the present invention and the accompanying drawings. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] Figure 1 is a schematic structural diagram of a periscope camera module according to an embodiment of the present invention.

[0016] Figure 2 3D is a schematic three-dimensional diagram of a lens assembly of a periscope camera module according to an embodiment of the present invention.

[0017] Figure 3 is a schematic cross-sectional view of a lens assembly of a periscope camera module according to an embodiment of the present invention.

[0018] Figure 4 It is a three-dimensional schematic diagram of a carrier of a lens assembly of a periscope camera module according to an embodiment of the present invention.

[0019] Figure 5 It is a cross-sectional schematic diagram of a carrier of a lens assembly of a periscope camera module according to an embodiment of the present invention.

[0020] Figure 6 is another stereoscopic schematic diagram of the carrier of the lens assembly of the periscope camera module according to an embodiment of the present invention.

[0021] Figure 7 is another stereoscopic schematic diagram of the carrier of the lens assembly of the periscope camera module according to an embodiment of the present invention.

[0022] In the figure: 100, periscope camera module; 1, refraction component; 11, exit side; 2, lens component; 21, carrier; 210, mounting cavity; 2101, inner side wall; 211, magnet mounting portion; 2110, mounting groove; 2111, bottom wall; 2112, first side wall; 2113, hollow area; 21130, hollow groove; 21131, transverse hollow groove; 21132, longitudinal hollow groove; 2114, fixing area; 21140, glue groove; 2115, pressure balance channel; 2116, guide groove; 2117, side wall of mounting portion; 2118, second side wall; 212, outer portion; 21201, first demoulding groove; 21202, second demoulding groove; 21203, third demoulding groove; 21204, magnetic magnet groove; 213, trimming area; 214, non-trimming area; 215, transition area; 216, limiting boss; 23. Guide element; 24. Magnetic magnet; 3. Photosensitive component; 4. Lens driving component; 41. Coil; 42. Magnet; 5. Base; 501. First receiving space; 502. Second receiving space; 510. Receiving slot; 5100. Top opening; 51. Side wall; 511. Top; 6. Casing. DETAILED DESCRIPTION

[0023] The following description is provided to enable those skilled in the art to implement the present invention. Other obvious replacements, modifications and variations may occur to those skilled in the art. Therefore, the scope of protection of the present invention should not be limited to the exemplary embodiments described herein.

[0024] Those skilled in the art should understand that, unless otherwise specified herein, the terms "one" and "an" should be understood as "at least one" or "one or more", that is, in one embodiment, the number of an element may be one, while in another embodiment, the number of the element may be multiple.

[0025] Those skilled in the art should understand that, unless otherwise specified herein, the directions or positions referred to by the terms "longitudinal", "lateral", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", etc. are based on the directions or positions shown in the drawings, and are only for the convenience of describing the present invention, and do not indicate or imply that the devices or elements involved must have a specific direction or position. Therefore, the above terms should not be understood as limiting the present invention.

[0026] Referring to the accompanying drawings of the present invention Figures 1 to 7 , a periscope camera module 100 according to an embodiment of the present invention will be explained in the following description, wherein the periscope camera module 100 of the present invention includes a refractive assembly 1, a lens assembly 2, a photosensitive assembly 3, a lens driving assembly 4, a base 5 and a housing 6, wherein the refractive assembly 1 is used to convert a light beam incident along an incident direction into a light beam emitted along an exiting direction, the lens assembly 2 and the photosensitive assembly 3 are sequentially arranged on the exit side 11 of the refractive assembly 1 along the exiting direction, the refractive assembly 1 is arranged in the first receiving space 501 of the base 5, the lens assembly 2 is arranged in the second receiving space 502 of the base 5, the housing 6 is covered on the base 5, and the lens driving assembly 4 is used to drive the lens assembly 2 to move in the same direction or reverse direction of the exiting direction to achieve focusing and / or zooming. Therefore, after being deflected by the refractive component 1, the light beam can pass through the lens component 2, and achieve focusing and / or zooming through the lens component 2, and then reach the photosensitive chip of the photosensitive component 3, and undergo photoelectric conversion at the photosensitive chip, thereby forming an image.

[0027] As shown in the attached picture Figure 2 and Figure 3As shown, the lens assembly 2 of the periscope camera module 100 according to the embodiment of the present invention includes a carrier 21 and a lens group, wherein the carrier 21 forms a mounting cavity 210, the lens group includes a plurality of lenses, wherein the plurality of lenses of the lens group are sequentially arranged in the mounting cavity 210 of the carrier 21 along the optical axis direction of the lens group, and the lens driving assembly 4 is configured to drive the carrier 21 of the lens assembly 2 to move and achieve focusing and / or zooming. Accordingly, the carrier 21 is implemented as an integrally formed component, integrating the functions of the lens barrel and the carrier of the existing lens assembly. The design method of integrating the lens barrel and the carrier of the periscope camera module 100 of the present invention to form the carrier 21 has many advantages: first, the lens barrel and the carrier are integrated to form the carrier 21, so there is no need to glue the lens barrel and the carrier to fix them, and there is no problem of the carrier falling off, which completely solves the shaking and abnormal noise problem caused by the carrier falling off. Secondly, the lens barrel and the carrier are integrated to form the carrier body 21, so that the installation of the lens barrel and the carrier does not require glue fixation, which reduces the installation procedure of the lens assembly, improves the reliability of the entire periscope camera module, and the performance of the lens assembly is not affected; finally, the lens barrel and the carrier are integrated to form the carrier body 21, which can further reduce the weight of the whole machine and reduce the power consumption of the motor of the lens drive assembly. In some embodiments of the present invention, the periscope camera module 100 of the present invention includes multiple lens assemblies 2, and different lens assemblies 2 are driven by the lens drive assembly 4 to move and achieve focus and / or zoom.

[0028] As shown in the attached picture Figures 1 to 3 As shown, the lens driving assembly 4 of the periscope camera module 100 according to an embodiment of the present invention includes at least one magnet 42 and at least one coil 41, wherein the at least one magnet 42 is arranged on the carrier 21 of the lens assembly 2, and the at least one coil 41 is arranged on the base 5 of the periscope camera module 100 of the present invention. Accordingly, when the at least one coil 41 of the lens driving assembly 4 of the periscope camera module 100 of the present invention is energized, the at least one magnet 42 moves under the action of the magnetic field generated by the at least one coil 41, thereby achieving focus and / or zoom. In addition, the at least one magnet 42 of the lens driving assembly 4 of the periscope camera module 100 of the present invention is arranged on the carrier 21 of the lens assembly 2, which can also be regarded as a part of the lens assembly 2. In some embodiments of the present invention, the lens driving assembly 4 is arranged on both sides of the lens assembly 2 of the periscope camera module 100 of the present invention. In other embodiments of the present invention, the lens driving assembly 4 is arranged on only one side of the lens assembly 2 of the periscope camera module 100 of the present invention.

[0029] It is worth mentioning that in some embodiments of the present invention, in order to facilitate the arrangement of the coil 41 on the side wall 51 of the base 5, the side wall 51 of the base 5 is provided with a receiving groove 510 for receiving the coil 41, and the receiving groove 510 has a top opening 5100, and the top opening 5100 is formed at the top 511 of the side wall 51 of the base 5 so that the top of the coil 41 in the receiving groove 510 is exposed.

[0030] As shown in the attached picture Figures 4 to 7 As shown, the outer wall of the carrier 21 of the lens assembly 2 of the periscope camera module 100 according to the embodiment of the present invention forms at least one magnet mounting portion 211 and two oppositely disposed second outer portions 212, wherein the two second outer portions 212 extend from the at least one magnet mounting portion 211 respectively. Figures 4 to 7 As shown, according to an embodiment of the periscope camera module 100, the at least one magnet mounting portion 211 of the carrier 21 of the lens assembly 2 forms a mounting groove 2110, wherein the magnet 42 is suitable for being arranged in the mounting groove 2110. It can be understood that the thickness of the at least one magnet mounting portion 211 of the carrier 21 of the periscope camera module 100 of the present invention is greater than the thickness of the two second outer portions 212, so as to facilitate the installation of the magnet 42. In other embodiments, the outer side wall of the carrier 21 of the periscope camera module 100 of the present invention forms two oppositely disposed magnet mounting portions 211 and two oppositely disposed second outer portions 212, wherein the two second outer portions 212 extend respectively between the two magnet mounting portions 211. It can be understood that the thickness of the two magnet mounting parts 211 of the carrier 21 of the periscope camera module 100 of the present invention is greater than the thickness of the two second outer parts 212, and the two magnets 42 are respectively arranged in the mounting grooves 2110 of the two magnet mounting parts 211 of the carrier 21.

[0031] As shown in the attached picture Figures 1 to 3 As shown, further, the mounting groove 2110 of the carrier 21 of the lens assembly 2 has a bottom wall 2111 and first side walls 2112 extending from opposite sides of the bottom wall 2111. Preferably, the height of the first side wall 2112 is greater than the height of the magnet 42, so that the first side wall 2112 can keep the magnet 42 in the mounting groove 2110 while preventing the magnet 42 from being touched, so that the magnet 42 is loosened or the magnet 42 falls off from the mounting groove 2110.

[0032] As shown in the attached picture Figures 4 to 7As shown, the carrier 21 of the lens assembly 2 of the periscope camera module 100 according to the embodiment of the present invention further includes a group of limiting bosses 216, wherein the limiting bosses 216 are arranged on the first side wall 2112 of the mounting groove 2110, for the installation and position limitation of the magnet 42, and for the possible later mold repair. Further, the mounting groove 2110 forms two second side walls 2118, wherein the second side walls 2118 extend from the opposite sides of the bottom wall 2111, respectively, wherein the second side walls 2118 of the mounting groove 2110 are respectively formed between the first side walls 2112, and the first side wall 2112 and the second side wall 2118 are integrally formed and arranged around the mounting groove 2110. It can be understood that the limiting bosses 216 may also be arranged on the second side wall 2118 of the mounting groove 2110, for the installation and position limitation of the magnet 42, and for the possible later mold repair. It can be understood that the mounting groove 2110 is formed on the thicker side of the carrier 21 (the magnet mounting portion 211), and the first side wall 2112 and the second side wall 2118 of the mounting groove 2110 of the carrier 21 are integrally formed and arranged around the mounting groove 2110, which helps to reduce the deformation of the carrier 21 caused by the curing effect of the glue.

[0033] As shown in the attached picture Figures 4 to 7 As shown, according to an embodiment of the periscope camera module 100 of the lens assembly 2, the bottom wall 2111 of the mounting groove 2110 of the at least one magnet mounting portion 211 of the carrier 21 forms a hollow area 2113 and a fixed area 2114, wherein the hollow area 2113 has a hollow groove 21130, and the fixed area 2114 at least partially surrounds the hollow area 2113, wherein the magnet 42 is arranged in the fixed area 2114.

[0034] As shown in the attached picture Figures 4 to 7As shown, the fixing area 2114 of the carrier 21 of the lens assembly 2 of the periscope camera module 100 according to the embodiment of the present invention forms a glue groove 21140, wherein the glue groove 21140 at least partially surrounds the hollow area 2113. Accordingly, the magnet 42 is arranged in the fixing area 2114, and is bonded to the fixing area 2114 of the bottom wall 2111 of the mounting groove 2110 through the glue in the glue groove 21140. It can be understood that the glue groove 21140 of the fixing area 2114 of the carrier 21 of the periscope camera module 100 of the present invention at least partially surrounds the hollow area 2113, so that the glue can be arranged around the hollow area 2113 to ensure the bonding strength between the magnet 42 and the fixing area 2114 of the bottom wall 2111 of the mounting groove 2110. Preferably, the glue groove 21140 of the fixed area 2114 of the carrier 21 of the periscope camera module 100 of the present invention is C-shaped around the hollow area 2113, so as to maximize the bonding area between the fixed area 2114 of the bottom wall 2111 of the mounting groove 2110 and the magnet 42 and ensure the bonding strength between the two. It can be understood that the glue groove 21140 can not only help the glue to be evenly applied, but also prevent the glue from flowing to the non-fixed area, especially to the hollow area 2113. Preferably, the glue should have a smaller shrinkage rate, for example, to reduce the traction of the glue curing shrinkage on the carrier 21 and reduce the deformation of the carrier 21, and reduce the MIF (modulation transfer function) variation of the lens assembly 2 of the periscope camera module 100 of the present invention. It can be understood that the hollow area 2113 of the at least one magnet mounting portion 211 of the carrier 21 can reduce the weight of the carrier 21.

[0035] As shown in the attached picture Figures 4 to 7As shown, the hollow area 2113 of the bottom wall 2111 of the at least one magnet mounting portion 211 of the carrier 21 of the lens assembly 2 of the periscope camera module 100 according to the embodiment of the present invention forms at least one transverse hollow groove 21131 and at least one longitudinal hollow groove 21132, wherein the longitudinal hollow groove 21132 extends longitudinally and arc-shaped relative to the inner side wall 2101 of the mounting cavity 210 of the carrier 21 to improve the true roundness of the outer side wall of the carrier 21 (or the true roundness of the outer side wall of the carrier 21), and the transverse hollow groove 21131 extends from the longitudinal hollow groove 21132 along the extension direction of the carrier 21. Accordingly, the hollow groove 21130 of the hollow area 2113 includes the transverse hollow groove 21131 and the longitudinal hollow groove 21132. It can be understood that both the transverse hollow groove 21131 and the longitudinal hollow groove 21132 can reduce the wall thickness of the magnet mounting portion 211 corresponding to the hollow area 2113 of the carrier 21, thereby reducing the thickness difference between the magnet mounting portion 211 of the carrier 21 and the second outer portion 212 of the carrier 21. Correspondingly, the transverse hollow groove 21131 and the longitudinal hollow groove 21132 of the hollow area 2113 of the at least one magnet mounting portion 211 of the carrier 21 can reduce the weight of the carrier 21, and the longitudinal hollow groove 21132 can further increase the roundness of the outer wall of the carrier 21, so as to avoid a sharp change in the wall thickness of the carrier 21, which may lead to a reduction in the molding accuracy of the inner wall 2101 of the mounting cavity 210 of the carrier 21 or the inner diameter of the mounting cavity 210, or a decrease in the roundness of the inner wall 2101 of the mounting cavity 210 or the roundness of the mounting cavity 210 when the carrier 21 is formed.

[0036] As shown in the attached picture Figures 4 to 7As shown, the at least one magnet mounting portion 211 of the carrier 21 of the lens assembly 2 of the periscope camera module 100 according to the embodiment of the present invention further forms at least one pressure balance channel 2115, wherein the pressure balance channel 2115 extends outward from the hollow groove 21130 of the hollow area 2113 to communicate with the external space of the carrier 21. Accordingly, due to the effect of the pressure balance channel 2115, the air pressure on both sides of the magnet 42 installed in the glue groove 21140 is the same or substantially the same, thereby preventing the air pressure inside the magnet 42 from being too high, causing the magnet 42 to loosen or fall off from the mounting groove 2110. In other words, when the air pressure inside the magnet 42 is too high, the gas inside the magnet 42 can escape from the inner side of the magnet 42 to the external space of the carrier 21 through the pressure balance channel 2115, thereby preventing the air pressure inside the magnet 42 from being too high, causing the magnet 42 to loosen or fall off from the mounting groove 2110. Therefore, the carrier 21 of the periscope camera module 100 of the present invention creatively arranges the hollow area 2113 and the pressure balance channel 2115 on the bottom wall 2111 of the at least one magnet mounting portion 211 of the carrier 21, thereby reducing the weight of the carrier 21, improving the molding accuracy of the inner diameter of the mounting cavity 210 and ensuring that the air pressure on both sides of the magnet 42 installed in the glue groove 21140 is the same or substantially the same, thereby solving the technical problems that have long been unresolved in the manufacturing technology of the lens barrel and carrier of the periscope camera module. Preferably, the inner diameter of the pressure balance channel 2115 is smaller than, or even much smaller than, the inner diameter of the hollow groove 21130 (the transverse hollow groove 21131 and the longitudinal hollow groove 21132) of the hollow area 2113, so as to ensure that when the gas pressure inside the magnet 42 is high, the gas can flow out from the pressure balance channel 2115. It can be understood that the pressure balance channel 2115 is connected to the transverse hollow groove 21131 and / or the longitudinal hollow groove 21132.

[0037] As shown in the attached picture Figures 4 to 7 As shown, the outer wall of the carrier 21 of the lens assembly 2 of the periscope camera module 100 according to the embodiment of the present invention forms at least one magnet mounting portion 211 and two oppositely disposed second outer portions 212, wherein the two second outer portions 212 extend from the at least one magnet mounting portion 211 respectively. Figures 4 to 7As shown, according to an embodiment of the periscope camera module 100, the at least one magnet mounting portion 211 of the carrier 21 of the lens assembly 2 forms a mounting groove 2110, wherein the magnet 42 is suitable for being arranged in the mounting groove 2110. It can be understood that the thickness of the at least one magnet mounting portion 211 of the carrier 21 of the periscope camera module 100 of the present invention is greater than the thickness of the two second outer portions 212, so as to facilitate the installation of the magnet 42. In other embodiments, the outer side wall of the carrier 21 of the periscope camera module 100 of the present invention forms two oppositely disposed magnet mounting portions 211 and two oppositely disposed second outer portions 212, wherein the two second outer portions 212 extend respectively between the two magnet mounting portions 211. It can be understood that the thickness of the two magnet mounting parts 211 of the carrier 21 of the periscope camera module 100 of the present invention is greater than the thickness of the two second outer parts 212, and the two magnets 42 are respectively arranged in the mounting grooves 2110 of the two magnet mounting parts 211 of the carrier 21.

[0038] As shown in the attached picture Figures 4 to 7 As shown in the attached figure Figures 4 to 7As shown, the carrier 21 of the lens assembly 2 of the periscope camera module 100 according to the embodiment of the present invention forms a trimming area 213, a non-trimming area 214 and a transition area 215 extending between the trimming area 213 and the non-trimming area 214. Therefore, the mounting cavity 210 of the carrier 21 is formed by the trimming area 213, the non-trimming area 214 and the transition area 215 of the carrier 21. As described above, the multiple lenses of the lens group of the lens assembly 2 of the periscope camera module 100 of the present invention are sequentially arranged in the mounting cavity 210 of the carrier 21 along the optical axis direction of the lens group. Preferably, the edge or periphery of the lens of the lens group of the lens assembly 2 of the periscope camera module 100 of the present invention abuts against the inner side wall 2101 of the mounting cavity 210. Generally, the periscope camera module, for example, the installation cavity 210 of the carrier 21 of the lens assembly 2 of the periscope camera module 100 of the present invention has limited space. In order to facilitate the installation of the multiple lenses of the lens group while reducing the volume of the carrier 21 of the periscope camera module 100 of the present invention as much as possible, the lenses of the multiple lenses of the lens group are designed as non-cut lenses, and the lenses of the multiple lenses of the lens group are designed as cut lenses to reduce the volume of the lenses of the multiple lenses, thereby reducing the volume of the entire lens group and the volume of the lens assembly 2 as much as possible. However, although the cut lens is cut, its inner diameter is still larger than that of the non-cut lens, and the space it occupies is also larger. Therefore, the trimmed lens is generally arranged in the portion of the mounting cavity 210 corresponding to the trimmed area 213 of the carrier 21 (which is closer to the light entrance of the mounting cavity 210 of the carrier 21), and the non-trimmed lens has a smaller inner diameter and occupies a smaller space, and is arranged in the portion of the mounting cavity 210 corresponding to the non-trimmed area 214 (which is far away from the light entrance of the mounting cavity 210 of the carrier 21). Accordingly, the inner diameter of the mounting cavity 210 corresponding to the trimmed area 213 of the carrier 21 is larger, the inner diameter of the mounting cavity 210 corresponding to the non-trimmed area 214 of the carrier 21 is smaller, and the inner diameter of the mounting cavity 210 corresponding to the transition area 215 of the carrier 21 changes (generally, the inner diameter of the mounting cavity 210 corresponding to the transition area 215 of the carrier 21 changes more dramatically).

[0039] As shown in the attached picture Figures 4 to 7 As shown in the attached figure Figures 4 to 7As shown, each second outer portion 212 of the carrier 21 of the lens assembly 2 of the periscope camera module 100 according to an embodiment of the present invention forms a first demolding groove 21201, a second demolding groove 21202 and a third demolding groove 21203, wherein the first demolding groove 21201 is formed in the trimming area 213 of the second outer portion 212, the second demolding groove 21202 is formed in the non-trimming area 214 of the second outer portion 212, and the third demolding groove 21203 is formed in the transition area 215 of the second outer portion 212, wherein the first demolding groove 21201, the second demolding groove 21202 and the third demolding groove 21203 extend arcuately and longitudinally along the outer periphery of the second outer portion 212, respectively, thereby improving the roundness of the second outer portion 212 and making it easy to demold the carrier 21 when it is integrally formed in a mold. Furthermore, the depth of the first demolding groove 21201 is less than the depth of the second demolding groove 21202, and the third demolding groove 21203 changes accordingly with the change of the inner diameter of the transition zone 215, so as to avoid drastic changes in the wall thickness of the carrier 21 and to ensure the uniformity and consistency of the wall thickness of different parts of the carrier 21 as much as possible. Furthermore, the two mounting grooves 2110 of the two magnet mounting parts 211 of the carrier 21 extend laterally from the trimming area 213 to the non-trimming area 214 along the outer wall of the carrier 21, respectively, so that the mounting groove 2110, the first demolding groove 21201, the second demolding groove 21202 and the third demolding groove 21203, the transverse hollow groove 21131 and the longitudinal hollow groove 21132 of the hollow groove 21130 can cooperate with each other, while ensuring the roundness of the carrier 21, reducing the wall thickness and weight of the carrier 21, and ensuring the uniformity and consistency of the wall thickness of different parts of the carrier 21.

[0040] As shown in the attached picture Figures 4 to 7As shown, each magnet mounting portion 211 of the carrier 21 of the lens assembly 2 of the periscope camera module 100 according to an embodiment of the present invention further forms a guide groove 2116, and the lens assembly 2 further includes a guide element 23, wherein the guide groove 2116 is formed on the mounting portion side wall 2117 of the magnet mounting portion 211, wherein the mounting portion side wall 2117 is close to the corresponding second outer portion 212 of the carrier 21, wherein the guide element 23 is arranged in the guide groove 2116 to guide the movement of the carrier 21. In some embodiments, the guide element 23 of the lens assembly 2 of the periscope camera module 100 of the present invention is a guide rod, and the guide groove 2116 is a guide rod groove. It can be understood that the guide element 23 may also be other guide elements that can achieve the purpose of the invention, for example, the guide element 23 is a ball, and the guide groove 2116 is a ball groove. It can be understood that the guide grooves 2116 of the two magnet mounting parts 211 of the carrier 21 of the lens assembly 2 of the periscope camera module 100 of the present invention are both guide rod grooves or both ball grooves, or the guide grooves 2116 of the two magnet mounting parts 211 are selectively, one is a guide rod groove and the other is a ball groove.

[0041] As shown in the attached picture Figures 4 to 7 As shown, according to the periscope camera module 100 of the lens assembly 2 of the embodiment of the present invention, the distance between the lower edge of the hollow groove 21130 of the magnet mounting portion 211 of the carrier 21 and the lower edge of the mounting groove 2110 is smaller than the distance between the upper edge of the hollow groove 21130 and the upper edge of the mounting groove 2110, and the projection of the guide groove 2116 along the direction perpendicular to the optical axis and the projection of the second demolding groove 21202 of the corresponding second outer portion 212 adjacent to the guide groove 2116 along the direction perpendicular to the optical axis overlap. The hollow groove 21130 extends along the magnet mounting portion 211 to between the guide groove 2116 and the second demolding groove 21202 of the corresponding second outer portion 212, and there is an appropriate distance between the transverse hollow groove 21131 and the guide groove 2116, so as to reduce the wall thickness of the magnet mounting portion 211 of the carrier 21 through the hollow groove 21130 while avoiding the second demolding groove 21202 of the corresponding second outer portion 212 adjacent to the guide groove 2116 from being too deep, thereby affecting the strength of the guide groove 2116.

[0042] As shown in the attached picture Figures 4 to 7As shown, the mounting grooves 2110 and the hollow grooves 21130 of the two magnet mounting parts 211 of the carrier 21 of the lens assembly 2 of the periscope camera module 100 according to an embodiment of the present invention are arranged symmetrically, and the first demolding groove 21201, the second demolding groove 21202 and the third demolding groove 21203 of the two second outer parts 212 of the carrier 21 are respectively arranged symmetrically.

[0043] As shown in the attached picture Figure 2 As shown, the lens assembly 2 of the periscope camera module 100 according to the embodiment of the present invention further includes at least one magnetic magnet 24, and at least one second outer portion 212 of the carrier 21 further forms a magnetic magnet groove 21204, wherein the magnetic magnet 24 is arranged in the magnetic magnet groove 21204 to produce a magnetic attraction with a magnetic component arranged at a corresponding position of the base 5, so that the ball can be clamped between the base 5 and the carrier 21. Further, the magnetic magnet groove 21204 is formed in the non-cutting area 214 of the carrier 21, so as to reduce the local wall thickness of the non-cutting area 214 while ensuring that the existence of the magnetic magnet groove 21204 does not cause the thickness of the non-cutting area 214 to be too small, so that the part where the magnetic magnet groove 21204 is located is prone to serious deformation. In addition, the lens arranged in the mounting cavity 210 corresponding to the non-cutting area 214 has relatively low optical sensitivity, and even if the part where the magnetic magnet groove 21204 is located undergoes certain deformation, it has little effect on the final imaging quality of the camera module. In this way, even if the glue arranged in the magnetic magnet groove 21204 for fixing the magnetic magnet 24 solidifies, causing the part of the carrier 21 where the magnetic magnet groove 21204 is located to be locally deformed, squeezing the internal lens, the effect of the deformation of the surrounding wall caused by the curing of the glue on the final imaging performance of the camera module can be minimized. Preferably, the magnetic magnet 24 is arranged at the center of gravity of the lens assembly 2, so that the movement of the lens assembly 2 is smoother and less prone to shaking. Preferably, the magnetic magnet 24 and the magnet 42 can produce a magnetic attraction to prevent the internal stress generated between them from causing the glue to crack. Preferably, the magnetic magnet groove 21204 disposed on one second outer portion 212 of the carrier 21 is symmetrically disposed with the demoulding groove disposed on another second outer portion 212 of the carrier 21 to ensure the molding accuracy of the lens. More preferably, the magnetic magnet groove 21204 is formed in the second demoulding groove 21202 or the third demoulding groove 21203 of one second outer portion 212 of the carrier 21.

[0044] Those skilled in the art should understand that the above description and the embodiments shown in the drawings are only for illustrative explanation of the present invention, rather than for limitation of the present invention. All equivalent implementations, modifications and improvements within the spirit of the present invention should be included in the protection scope of the present invention.

Claims

1. A lens assembly, characterized in that: include: Carrier; and A lens group, wherein the carrier forms a mounting cavity, the lens group includes a plurality of lenses, wherein the plurality of lenses of the lens group are sequentially arranged in the mounting cavity of the carrier along the optical axis direction of the lens group, wherein the outer wall of the carrier forms at least one magnet mounting portion and two oppositely arranged second outer portions, wherein the two second outer portions extend respectively from the at least one magnet mounting portion, wherein the at least one magnet mounting portion forms a mounting groove so that the magnet can be arranged in the mounting groove, wherein the mounting groove has a bottom wall and first side walls extending respectively from opposite sides of the bottom wall, wherein the bottom wall forms a hollow area and a fixed area, wherein the hollow area has a hollow groove, and the fixed area at least partially surrounds the hollow area, wherein the magnet is arranged in the fixed area.

2. The lens assembly according to claim 1, characterized in that: The fixing area of ​​the carrier forms a glue groove, wherein the glue groove at least partially surrounds the hollow area, and the magnet is bonded to the fixing area of ​​the bottom wall of the mounting groove by the glue in the glue groove.

3. The lens assembly according to claim 2, characterized in that: The hollow area of ​​the bottom wall forms at least one transverse hollow groove and at least one longitudinal hollow groove, wherein the longitudinal hollow groove extends longitudinally and arc-shaped relative to the inner side wall of the mounting cavity of the carrier, and the transverse hollow groove extends from the longitudinal hollow groove along the extension direction of the carrier.

4. The lens assembly according to claim 2, characterized in that: The at least one magnet mounting portion further forms at least one pressure balance channel, wherein the pressure balance channel extends outward from the hollow groove of the hollow area to communicate with the external space of the carrier.

5. The lens assembly according to claim 4, characterized in that: The inner diameter of the pressure balance channel is smaller than the inner diameter of the hollow groove of the hollow area.

6. The lens assembly according to claim 2, characterized in that: The carrier forms a trimming area, a non-trimming area and a transition area extending between the trimming area and the non-trimming area, and each second outer side of the carrier forms a first demolding groove, a second demolding groove and a third demolding groove, wherein the first demolding groove is formed in the trimming area of ​​the second outer side, the second demolding groove is formed in the non-trimming area of ​​the second outer side, and the third demolding groove is formed in the transition area of ​​the second outer side, wherein the first demolding groove, the second demolding groove and the third demolding groove extend arcuately and longitudinally along the outer periphery of the second outer side, respectively.

7. The lens assembly according to claim 6, characterized in that: The depth of the first demolding groove is less than the depth of the second demolding groove, and the third demolding groove changes accordingly with the change of the inner diameter of the transition zone.

8. The lens assembly according to claim 7, characterized in that: The mounting groove of the at least one magnet mounting portion of the carrier extends transversely from the trimming area to the non-trimming area along the outer side wall of the carrier.

9. The lens assembly according to claim 8, characterized in that: The outer wall of the carrier body forms two oppositely disposed magnet mounting parts and two oppositely disposed second outer parts, wherein the two second outer parts respectively extend between the two magnet mounting parts, and two magnets are respectively disposed in the mounting grooves of the two magnet mounting parts of the carrier body.

10. The lens assembly according to claim 1, wherein: The outer wall of the carrier body forms two oppositely arranged magnet mounting parts and two oppositely arranged second outer parts, wherein the two second outer parts extend respectively between the two magnet mounting parts, and the two magnets are respectively arranged in the mounting grooves of the two magnet mounting parts of the carrier body, wherein the mounting grooves and the hollow grooves of the two magnet mounting parts of the carrier body are arranged symmetrically, and the first demolding groove, the second demolding groove and the third demolding groove of the two second outer parts of the carrier body are respectively arranged symmetrically.

11. The lens assembly according to claim 2, characterized in that: The glue groove in the fixing area is C-shaped and surrounds the hollow area.

12. The lens assembly according to claim 3, characterized in that: The distance between the lower edge of the hollow groove of the magnet mounting portion and the lower edge of the mounting groove is smaller than the distance between the upper edge of the hollow groove and the upper edge of the mounting groove.

13. The lens assembly according to claim 2, characterized in that: The mounting groove further has two second side walls, wherein the second side walls extend from opposite sides of the bottom wall respectively, wherein the second side walls of the mounting groove are respectively formed between the first side walls, and the first side wall and the second side wall are integrally formed and arranged around the mounting groove.

14. The lens assembly according to claim 2, wherein: The carrier further includes a group of limiting bosses, wherein the limiting bosses are arranged on the first side wall of the mounting groove.

15. The lens assembly according to claim 13, characterized in that: The carrier further includes a group of limiting bosses, wherein the limiting bosses are respectively arranged on the first side wall and the second side wall of the mounting groove.

16. The lens assembly according to claim 12, wherein: Each of the magnet mounting portions of the carrier further forms a guiding groove, wherein the guiding groove is formed on a mounting portion side wall of the magnet mounting portion, wherein the mounting portion side wall is close to the corresponding second outer portion of the carrier.

17. The lens assembly according to claim 16, wherein: The projection of the guide groove along the direction perpendicular to the optical axis overlaps with the projection of the second demolding groove of the corresponding second outer part adjacent to the guide groove along the direction perpendicular to the optical axis, wherein the hollow groove extends along the magnet mounting part to between the guide groove and the second demolding groove of the corresponding second outer part, and there is an appropriate distance between the transverse hollow groove and the guide groove.

18. The lens assembly according to claim 1, wherein: The height of the first side wall is greater than the height of the magnet.

19. The lens assembly according to claim 10, wherein: The thickness of the two magnet mounting parts of the carrier is greater than the thickness of the two second outer parts.

20. A periscope camera module, characterized in that: include: Refraction components; Photosensitive components; Lens drive assembly; Base; shell; and The lens assembly as described in any one of claims 1 to 19, wherein the refractive assembly is used to transform a light beam incident along an incident direction into a light beam emitted along an exiting direction, the lens assembly and the photosensitive assembly are sequentially arranged on the exit side of the refractive assembly along the exiting direction, the refractive assembly is arranged in a first receiving space of the base, the lens assembly is arranged in a second receiving space of the base, the outer shell cover is arranged on the base, and the lens driving assembly is used to drive the lens assembly to move in the same direction or reverse direction of the exiting direction to achieve focusing and / or zooming.

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