Magnetic combined optical lens

Abstract

The utility model relates to the technical field of mobile phone accessories, in particular to a magnetic suction combined optical lens, which comprises a main lens arranged at the position of a camera of an external mobile phone; the lens clamp is fixedly arranged on the main lens, is connected with the mobile phone and is used for clamping and fixing the main lens on the mobile phone; the additional lenses are sequentially stacked at the image acquisition end of the main lens along the axial direction of the main lens; and the assembling module is arranged on the main lens and the plurality of additional lenses and is used for fixedly assembling the plurality of additional lenses at the image acquisition end of the main lens. According to the utility model, the main lens is provided with the first magnet and the first slot, the additional lenses are provided with the second magnet, the second slot and the magnetic induction sheet, and the plurality of additional lenses are assembled on the main lens by using the magnetic force between the magnetic induction sheet and the first magnet and the magnetic force between the magnetic induction sheet and the second magnet, so that the assembling convenience of the device is enhanced; the defect of inconvenient assembly in the prior art is overcome.

Description

Technical Field

[0001] This utility model relates to the field of mobile phone accessories technology, and in particular to a magnetically attached optical lens. Background Technology

[0002] External lenses for mobile phones generally refer to external additional lenses that are fixed to the camera position of a mobile phone using a lens clip. They are optical accessories that enhance the shooting function of mobile phones. However, in the current technology, the multiple lenses of a combination optical lens are generally fixed together by clips or threads, which has the disadvantage of inconvenient assembly. Utility Model Content

[0003] To address the technical problem of inconvenient installation and disassembly of existing combined external lenses, Embodiment 1 of this utility model provides a magnetically attached combined optical lens, comprising:

[0004] The main camera is located on the outside of the phone, where the main camera would normally be.

[0005] The lens clip is fixedly mounted on the main lens and is connected to the mobile phone to hold and fix the main lens on the mobile phone.

[0006] Several additional lenses are stacked sequentially along the axis of the main lens at the image acquisition end of the main lens;

[0007] The assembly module is set on the main lens and several additional lenses, and is used to fix the additional lenses to the image acquisition end of the main lens.

[0008] Furthermore, the assembly module includes:

[0009] The first slot is formed on the top end face of the first housing of the main lens. The first slot is an annular slot, and the central axis of the first slot is collinear with the central axis of the first housing.

[0010] Several first magnets are fixedly disposed in the inner wall of the first outer shell;

[0011] Several second slots are respectively opened on the top end face of several additional lenses of the second housing. The second slots are annular slots, and the central axis of the second slots is collinear with the central axis of the second housing.

[0012] Several second magnets are respectively fixedly disposed in the inner wall of the second outer shell;

[0013] Several magnetic plates are fixedly installed at the bottom of the second housing of several additional lenses. One magnetic plate is movably inserted into the first slot and magnetically attracted to several first magnets. The remaining magnetic plates are movably inserted into the adjacent second slots and magnetically attracted to the second magnets installed in the inner wall of the second housing of several additional lenses. The magnetic plates match the inner cavity shape of the first slot and the second slot.

[0014] Furthermore, the assembly module includes:

[0015] The first mounting groove is formed on the top end face of the third housing of the main lens. The first mounting groove is an annular groove and is collinear with the central axis of the third housing.

[0016] A first bearing block is disposed in the inner cavity of the first assembly groove. The shape of the first bearing block matches that of the inner cavity of the first assembly groove, and the thickness of the first bearing block is less than the depth of the inner cavity of the first assembly groove.

[0017] The first fastening assembly component is disposed on the inner wall of the first assembly groove. The first fastening assembly component is connected to the first bearing block and is used to fix the first bearing block in the first assembly groove.

[0018] Several second mounting slots are respectively opened on the bottom end face of several additional lenses of the fourth housing. The second mounting slots are annular slots and collinear with the central axis of the fourth housing.

[0019] Several third mounting slots are respectively opened on the top end face of the fourth housing of several additional lenses;

[0020] Several second support blocks are respectively set in several second assembly slots. The inner shape of the second support block matches the inner cavity of the second assembly slot. The thickness of the second support block is greater than the inner cavity depth of the second assembly slot. When several additional lenses are assembled to the image acquisition end of the main lens, the bottom end of one of the second support blocks is inserted into the top slot of the first assembly slot. The radial cross-sectional shape of the second support block matches the first assembly slot. The bottom ends of the remaining second support blocks are respectively movably inserted into the adjacent third assembly slot. The radial cross-sectional shape of the second support block matches the third assembly slot.

[0021] Several second fastening assembly components are respectively disposed on the inner walls of several second assembly slots. The several second fastening assembly components are respectively connected to several second bearing blocks and are used to fix the several second bearing blocks in the several second assembly slots.

[0022] Several magnetic mounting components are disposed on a first support block, several fourth housings and several second support blocks. Any one of the magnetic mounting components is connected to the first support block, several fourth housings and several second support blocks, and is used to fix several additional lenses to the image acquisition end of the main lens.

[0023] Furthermore, the magnetic assembly includes:

[0024] A first mounting hole is formed on the first support block, and the ports at both ends of the first mounting hole are exposed on the top surface and the bottom surface of the first support block, respectively.

[0025] Several second assembly holes are respectively opened on several second bearing blocks, and the ports at both ends of the second assembly holes are exposed on the top surface and the bottom surface of the second bearing block, respectively.

[0026] Several third magnets are respectively disposed in the cavities of several second assembly holes, and any one third magnet is interference-fitted with the corresponding second assembly hole;

[0027] The first moving iron core is movably disposed in the inner cavity of the first assembly hole. The first moving iron core is magnetically attracted and connected to one of the third magnets. The top end of the first moving iron core is movably inserted into the bottom end port of the corresponding second assembly hole. The first moving iron core is slidably connected to the inner wall of the first assembly hole.

[0028] Several third assembly holes are respectively opened on the inner cavity top wall of several second assembly slots, and any one of the third assembly holes penetrates the inner wall of the corresponding second assembly slot and is exposed on the outer surface of the fourth housing.

[0029] Several second moving iron cores are movably disposed in several third assembly holes. Any one of the second moving iron cores is magnetically attracted to a pair of adjacent third magnets. The top ends of the several second moving iron cores are respectively inserted into the bottom ports of the remaining second assembly holes. Any one of the second moving iron cores is slidably connected to the inner wall of the third assembly hole.

[0030] Furthermore, the first mounting hole is a countersunk hole, and the inner diameter of the upper part of the inner cavity of the first mounting hole is not less than the outer diameter of the top end of the first moving iron core and not greater than the outer diameter of the bottom end of the first moving iron core.

[0031] Furthermore, the second mounting hole is a countersunk hole, and the third magnet is located in the upper part of the inner cavity of the second mounting hole. The inner diameter of the lower part of the inner cavity of the second mounting hole is smaller than the outer diameter of the third magnet.

[0032] Furthermore, the third mounting hole is a countersunk hole, and the inner diameter of the upper part of the inner cavity of the third mounting hole is not less than the outer diameter of the top end of the second moving iron core and not greater than the outer diameter of the bottom end of the second moving iron core.

[0033] Furthermore, the bottom outer diameter of the second moving iron core is not less than the top port inner diameter of the second assembly hole.

[0034] Furthermore, the first fastening assembly includes:

[0035] The first threaded protrusion is fixedly mounted on the circumferential sidewall of the first bearing block;

[0036] A first threaded groove is formed on the circumferential inner wall of the first assembly groove. The first threaded groove engages with a first threaded protrusion and is used to fix the first bearing block in the first assembly groove.

[0037] Furthermore, the second fastening assembly includes:

[0038] The second threaded protrusion is fixedly installed on the circumferential sidewall of the second bearing block;

[0039] The second threaded groove is formed on the circumferential inner wall of the second assembly groove. The second threaded groove engages with the second threaded protrusion and is used to fix the second bearing block inside the second assembly groove.

[0040] The magnetically attached optical lens according to the embodiment of this utility model has the following beneficial effects:

[0041] 1. Embodiment 2 of this utility model sets a first magnet and a first slot on the main lens, and sets a second magnet, a second slot and a magnetic guide sheet on the auxiliary lens. The magnetic force between the magnetic guide sheet and the first magnet and the second magnet is used to assemble multiple auxiliary lenses on the main lens, which enhances the assembly convenience of this device and solves the defect of inconvenient assembly in the prior art.

[0042] 2. In Embodiment 3 of this utility model, multiple assembly modules are set between the main lens and several additional lenses to achieve the purpose of adsorbing and fixing the multiple additional lenses to the information acquisition end of the main lens. At the same time, the magnetic assembly components of the assembly modules are used to radially position the additional lenses, thereby enhancing the structural stability of the device.

[0043] It should be understood that both the foregoing general description and the following detailed description are exemplary and intended to provide further illustration of the claimed technology. Attached Figure Description

[0044] Figure 1 This is an assembly diagram according to Embodiment 1 of the present utility model;

[0045] Figure 2 This is an exploded view of the structure according to Embodiment 2 of the present invention;

[0046] Figure 3 This is an overall sectional view according to Embodiment 3 of the present invention;

[0047] Figure 4 for Figure 3 A magnified view of a portion of region A in the middle;

[0048] Figure 5 This is an exploded view of the structure according to Embodiment 3 of the present invention;

[0049] Figure 6 This is an overall sectional view according to Embodiment 3 of the present invention (the first moving iron core, the second moving iron core, and the third magnet are hidden);

[0050] Figure 7 for Figure 6 A magnified view of a portion of region B in the middle.

[0051] Explanation of reference numerals in the attached diagram:

[0052] 1-Main lens, 11-First housing, 12-Third housing, 2-Additional lens, 21-Second housing, 22-Fourth housing, 301-First slot, 302-Second slot, 303-Magnetic sheet, 311-First support block, 313-Second mounting slot, 314-Third mounting slot, 315-Second support block, 3171-First mounting hole, 3172-Second mounting hole, 3173-Third magnet, 3174-First moving iron core, 3175-Third mounting hole, 3176-Second moving iron core. Detailed Implementation

[0053] The preferred embodiments of the present invention will be described in detail below with reference to the accompanying drawings, further illustrating the present invention.

[0054] The foregoing and other technical contents, features, and effects of this utility model will be clearly presented in the following detailed description of the embodiments with reference to the accompanying drawings. The directional terms mentioned in the following embodiments, such as up, down, left, right, front, or back, are only for reference to the directions in the accompanying drawings. Therefore, the directional terms used are for illustrative purposes and not for limiting the present utility model. Furthermore, in all embodiments, the same reference numerals denote the same elements.

[0055] Example 1

[0056] Specifically, such as Figure 1As shown, an embodiment of this utility model proposes a magnetically attached combined optical lens, comprising: a main lens 1, disposed at the external camera position of a mobile phone; a lens clip (not shown in the figure), fixedly disposed on the main lens 1, the lens clip being connected to the mobile phone for clamping and fixing the main lens 1 to the mobile phone; a plurality of auxiliary lenses 2, sequentially stacked along the axial direction of the main lens 1 at the image acquisition end of the main lens 1; and an assembly module disposed on the main lens 1 and the plurality of auxiliary lenses 2 for fixing and assembling the plurality of auxiliary lenses 2 to the image acquisition end of the main lens 1.

[0057] Example 2

[0058] Furthermore, such as Figure 1 , 2 As shown, Embodiment 2 of this utility model proposes a magnetically attached combined optical lens based on Embodiment 1. Its assembly module includes: a first slot 301, formed on the top end face of the first housing 11 of the main lens 1; the first slot 301 is an annular groove, and its central axis is collinear with the central axis of the first housing 11; several first magnets (not shown in the figure), fixedly disposed in the inner wall of the first housing 11; and several second slots 302, respectively formed on the top end face of the second housing 21 of several additional lenses 2; the second slots 302 are annular grooves, and their central axes are collinear with the central axis of the second housing 21. The central axes are collinear; several second magnets (not shown in the figure) are fixedly disposed in the inner wall of the second housing 21; several magnetic plates 303 are fixedly disposed at the bottom of the second housing 21 of several additional lenses 2, one of the magnetic plates 303 is movably inserted into the first slot 301 and magnetically attracted to several first magnets, the remaining magnetic plates 303 are movably inserted into the adjacent second slots 302 and magnetically attracted to the second magnets disposed in the inner wall of the second housing 21 of several additional lenses 2, and the magnetic plates 303 are matched with the inner cavity shape of the first slot 301 and the second slot 302.

[0059] When a user attaches an additional lens 2 to the image acquisition end of the main lens 1, the user first holds the second housing 21 of the additional lens 2 and places it on top of the first housing 11 of the main lens 1, allowing the magnetic plate 303 of the additional lens 2 to be inserted into the first slot 301. The magnetic force between the magnetic plate 303 and the first magnet is used to magnetically attract and fix the additional lens 2 to the main lens 1. When a user attaches another additional lens 2 to the top of the above-mentioned additional lens 2, the user first holds the second housing 21 of the additional lens 2 and places it on top of the second housing 21 of the installed additional lens 2, allowing the magnetic plate 303 of the additional lens 2 to be inserted into the second slot 302. The magnetic force between the magnetic plate 303 and the second magnet is used to magnetically attract and fix the additional lens 2 to the top of the installed additional lens 2.

[0060] Example 3

[0061] Furthermore, such as Figure 1 , 3As shown in Figure 7, Embodiment 3 of this utility model proposes a magnetically attached combined optical lens based on Embodiment 1. Its assembly module includes: a first assembly groove (not shown in the figure), formed on the top end face of the third housing 12 of the main lens 1; the first assembly groove is an annular groove and collinear with the central axis of the third housing 12; a first support block 311, disposed in the inner cavity of the first assembly groove; the shape of the first support block 311 matches the inner cavity of the first assembly groove, and the thickness of the first support block 311 is less than the inner cavity depth of the first assembly groove; and a first locking assembly component, disposed in the first assembly groove. On the inner wall, the first fastening assembly is connected to the first support block 311, used to fix the first support block 311 in the first assembly groove; a plurality of second assembly grooves 313 are respectively opened on the bottom end face of the fourth housing 22 of the plurality of auxiliary lenses 2, the second assembly grooves 313 are annular grooves, and the second assembly grooves 313 are collinear with the central axis of the fourth housing 22; a plurality of third assembly grooves 314 are respectively opened on the top end face of the fourth housing 22 of the plurality of auxiliary lenses 2; a plurality of second support blocks 315 are respectively disposed in the plurality of second assembly grooves 313, the second support blocks The inner shape of the second support block 315 matches the inner cavity shape of the second mounting groove 313. The thickness of the second support block 315 is greater than the inner cavity depth of the second mounting groove 313. When several additional lenses 2 are assembled to the image acquisition end of the main lens 1, the bottom end of one of the second support blocks 315 is inserted into the top slot of the first mounting groove, and the radial cross-sectional shape of the second support block 315 matches the first mounting groove. The bottom ends of the remaining second support blocks 315 are respectively movably inserted into the adjacent third mounting groove 314, and the radial cross-sectional shape of the second support block 315 matches the third mounting groove 314. Several second locking assembly components Several second mounting components are respectively set on the inner walls of several second mounting slots 313, and several second fastening mounting components are respectively connected to several second bearing blocks 315, for fixing several second bearing blocks 315 in several second mounting slots 313; several magnetic mounting components are set on the first bearing block 311, several fourth outer shells 22 and several second bearing blocks 315, and any one magnetic mounting component is connected to the first bearing block 311, several fourth outer shells 22 and several second bearing blocks 315, for fixing several additional lenses 2 to the image acquisition end of the main lens 1.

[0062] Furthermore, such as Figure 1 , 3As shown in Figure 7, the magnetic assembly includes: a first mounting hole 3171, formed on a first support block 311, with its two ends exposed on the top and bottom surfaces of the first support block 311, respectively; a plurality of second mounting holes 3172, respectively formed on a plurality of second support blocks 315, with their two ends exposed on the top and bottom surfaces of the second support blocks 315, respectively; a plurality of third magnets 3173, respectively disposed in the cavities of the plurality of second mounting holes 3172, each third magnet 3173 being interference-fitted with its corresponding second mounting hole 3172; and a first moving iron core 3174, movably disposed in the cavity of the first mounting hole 3171, the first moving iron core 3174 being magnetically attracted to one of the third magnets 3173. The top end of the first moving iron core 3174 is movably inserted into the bottom end port of the corresponding second mounting hole 3172, and the first moving iron core 3174 is slidably connected to the inner wall of the first mounting hole 3171; a plurality of third mounting holes 3175 are respectively opened on the top wall of the inner cavity of a plurality of second mounting grooves 313, and any one of the third mounting holes 3175 penetrates the inner wall of the corresponding second mounting groove 313 and is exposed on the outer surface of the fourth outer shell 22; a plurality of second moving iron cores 3176 are respectively movably disposed in a plurality of third mounting holes 3175, and any one of the second moving iron cores 3176 is magnetically attracted to a pair of adjacent third magnets 3173, and the top ends of the plurality of second moving iron cores 3176 are respectively inserted into the bottom end ports of the remaining second mounting holes 3172, and any one of the second moving iron cores 3176 is slidably connected to the inner wall of the third mounting hole 3175.

[0063] Preferably, a plurality of fourth magnets (not shown in the figure) are embedded in the inner wall of the third housing. The plurality of fourth magnets correspond one-to-one with the positions of the plurality of first moving iron cores 3174. When the auxiliary lens 2 is assembled to the top of the main lens 1, the closest distance between the first moving iron core 3174 and the corresponding fourth magnet is greater than the distance between the first moving iron core 3174 and the corresponding third magnet 3173, so as to prevent the first moving iron core 3174 from protruding from the top surface of the first bearing block 311 due to gravity when the auxiliary lens 2 is not assembled to the top of the main lens 1.

[0064] Furthermore, such as Figure 1 , 3 As shown in Figure 7, the first mounting hole 3171 is a countersunk hole. The inner diameter of the upper part of the inner cavity of the first mounting hole 3171 is not less than the outer diameter of the top end of the first moving iron core 3174 and not greater than the outer diameter of the bottom end of the first moving iron core 3174, so as to prevent the first moving iron core 3174 from coming out of the first mounting hole 3171.

[0065] Furthermore, such as Figure 1 , 3As shown in Figure 7, the second mounting hole 3172 is a countersunk hole, and the third magnet 3173 is located in the upper part of the inner cavity of the second mounting hole 3172. The inner diameter of the lower part of the inner cavity of the second mounting hole 3172 is smaller than the outer diameter of the third magnet 3173.

[0066] Furthermore, such as Figure 1 , 3 As shown in Figure 7, the third mounting hole 3175 is a countersunk hole. The inner diameter of the upper part of the inner cavity of the third mounting hole 3175 is not less than the outer diameter of the top end of the second moving iron core 3176 and not greater than the outer diameter of the bottom end of the second moving iron core 3176, so as to prevent the second moving iron core 3176 from coming out of the third mounting hole 3175.

[0067] Furthermore, such as Figure 1 , 3 As shown in Figure 7, the bottom outer diameter of the second moving iron core 3176 is not less than the top port inner diameter of the second mounting hole 3172 to prevent the second moving iron core 3176 from coming out of the third mounting hole 3175.

[0068] Furthermore, such as Figure 1 , 3 As shown in Figure 7, the first fastening assembly includes: a first threaded protrusion (not shown in the figure), which is fixedly disposed on the circumferential sidewall of the first bearing block 311; and a first threaded groove (not shown in the figure), which is formed on the circumferential inner wall of the first assembly groove. The first threaded groove engages with the first threaded protrusion and is used to fix the first bearing block 311 in the first assembly groove.

[0069] Furthermore, such as Figure 1 , 3 As shown in Figure 7, the second fastening assembly includes: a second threaded protrusion (not shown in the figure), which is fixedly disposed on the circumferential sidewall of the second bearing block 315; and a second threaded groove (not shown in the figure), which is formed on the circumferential inner wall of the second assembly groove 313. The second threaded groove engages with the second threaded protrusion and is used to fix the second bearing block 315 inside the second assembly groove 313.

[0070] When a user attaches an additional lens 2 to the image acquisition end of the main lens 1, the user first holds the fourth housing 22 of the additional lens 2 and places it on top of the third housing 12 of the main lens 1, so that the bottom end of the second support block 315 on the additional lens 2 is inserted into the top port of the first mounting slot. At this time, the first moving iron core 3174 located in the first mounting hole 3171 is attracted by the magnetic force of the third magnet 3173 located above it, so that the top end of the first moving iron core 3174 passes through the top port of the first mounting hole 3171 and is inserted into the image acquisition end of the main lens 1. In the bottom port of the second mounting hole 3172 on its upper side, since the outer diameter of the bottom end of the first moving iron core 3174 is larger than the inner diameter of the top port of the first mounting hole 3171, to prevent the first moving iron core 3174 from coming out of the first mounting hole 3171, the purpose of mirror positioning of the auxiliary lens 2 mounted on the top of the main lens 1 is achieved by using the first moving iron core 3174, and at the same time, the effect of using the first moving iron core 3174 to magnetically fix the auxiliary lens 2 to the image acquisition end of the main lens 1 is achieved; when the user mounts another auxiliary lens 2 to the top of the above-mentioned auxiliary lens 2... First, the user places the attachment lens 2 to be assembled on top of the assembled attachment lens 2, and inserts the bottom end of the second support block 315 into the third assembly slot 314. Since the distance between the second moving iron core 3176 on the assembled attachment lens 2 and the third magnet 3173 located below it is greater than the distance between the third magnet 3173 located above it, when the bottom end of the second support block 315 is inserted into the third assembly slot 314, the second moving iron core 3176 on the assembled attachment lens 2 is subjected to force from the attachment lens 2 to be assembled. The magnetic attraction of the third magnet 3173 causes the second moving iron core 3176 to move upward and insert into the bottom port of the second mounting hole 3172 of the auxiliary lens 2 to be assembled. Since the outer diameter of the bottom end of the second moving iron core 3176 is larger than the inner diameter of the top port of the third mounting hole 3175, the second moving iron core 3176 is prevented from coming out of the third mounting hole 3175. Finally, the purpose of radial positioning of the auxiliary lens 2 is achieved by using the second moving iron core 3176, and at the same time, the purpose of adsorbing and fixing the auxiliary lens 2 to be assembled to the top of the assembled auxiliary lens 2 is achieved.

[0071] Above, refer to Figures 1-7 The magnetically attached optical lens according to an embodiment of the present invention has the following beneficial effects:

[0072] 1. Embodiment 2 of this utility model provides a first magnet and a first slot 301 on the main lens 1, and a second magnet, a second slot 302 and a magnetic guide sheet 303 on the auxiliary lens 2. The magnetic force between the magnetic guide sheet 303 and the first magnet and the second magnet is used to assemble multiple auxiliary lenses 2 onto the main lens 1, which enhances the ease of assembly of this device and solves the defect of inconvenient assembly in the prior art.

[0073] 2. In the third embodiment of this utility model, multiple assembly modules are set between the main lens 1 and several additional lenses 2 to achieve the purpose of adsorbing and fixing the multiple additional lenses 2 to the information acquisition end of the main lens 1. At the same time, the magnetic assembly components of the assembly modules are used to radially position the additional lenses 2, thereby enhancing the structural stability of the device.

[0074] It should be noted that, in this specification, the terms "comprising," "including," or any other variations thereof are intended to cover a non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements includes not only those elements but also other elements not expressly listed, or elements inherent to such a process, method, article, or apparatus. Without further limitations, an element defined by the phrase "comprising..." does not exclude the presence of other identical elements in the process, method, article, or apparatus that includes said element.

[0075] Although the present invention has been described in detail through the above preferred embodiments, it should be understood that the above description should not be considered as a limitation of the present invention. Various modifications and substitutions to the present invention will be apparent to those skilled in the art after reading the above content. Therefore, the scope of protection of the present invention should be defined by the appended claims.

Claims

1. A magnetically attached optical lens, characterized in that, Include: The main camera is located on the outside of the phone, where the main camera would normally be. A lens clip is fixedly mounted on the main lens and is connected to the mobile phone for clamping and fixing the main lens onto the mobile phone. Several additional lenses are stacked sequentially along the axis of the main lens at the image acquisition end of the main lens; An assembly module is disposed on the main lens and the plurality of auxiliary lenses, and is used to fix the plurality of auxiliary lenses to the image acquisition end of the main lens.

2. The magnetically attached optical lens as described in claim 1, characterized in that, The assembly module includes: A first slot is formed on the top end face of the first housing of the main lens. The first slot is an annular groove, and the central axis of the first slot is collinear with the central axis of the first housing. Several first magnets are fixedly disposed in the inner wall of the first outer shell; A plurality of second slots are respectively formed on the top end face of the second housing of the plurality of additional lenses. The second slot is an annular slot and the central axis of the second slot is collinear with the central axis of the second housing. Several second magnets are respectively fixedly disposed in the inner wall of the second outer shell; Several magnetic plates are fixedly disposed at the bottom of the second housing of the several additional lenses. One of the magnetic plates is movably inserted into the first slot and magnetically attracted to the several first magnets. The remaining magnetic plates are movably inserted into the adjacent second slots and magnetically attracted to the second magnets disposed in the inner wall of the second housing of the several additional lenses. The magnetic plates are matched with the inner cavity shape of the first slot and the second slot.

3. The magnetically attached optical lens as described in claim 1, characterized in that, The assembly module includes: The first mounting groove is formed on the top end face of the third housing of the main lens. The first mounting groove is an annular groove and is collinear with the central axis of the third housing. A first bearing block is disposed in the inner cavity of the first assembly groove. The shape of the first bearing block matches that of the inner cavity of the first assembly groove, and the thickness of the first bearing block is less than the depth of the inner cavity of the first assembly groove. The first fastening assembly component is disposed on the inner wall of the first assembly groove. The first fastening assembly component is connected to the first bearing block and is used to fix the first bearing block in the first assembly groove. A plurality of second mounting slots are respectively formed on the bottom end face of the fourth housing of the plurality of additional lenses. The second mounting slots are annular slots and are collinear with the central axis of the fourth housing. Several third mounting slots are respectively opened on the end face of the top of the fourth housing of the several additional lenses; A plurality of second support blocks are respectively disposed in the plurality of second assembly slots. The inner cavity shape of the second support block matches the inner cavity shape of the second assembly slot. The thickness of the second support block is greater than the inner cavity depth of the second assembly slot. When the plurality of additional lenses are assembled to the image acquisition end of the main lens, the bottom end of one of the second support blocks is inserted into the top slot of the first assembly slot. The radial cross-sectional shape of the second support block matches the first assembly slot. The bottom ends of the remaining second support blocks are respectively movably inserted into the adjacent third assembly slot. The radial cross-sectional shape of the second support block matches the third assembly slot. A plurality of second fastening assembly components are respectively disposed on the inner walls of the plurality of second assembly slots, and the plurality of second fastening assembly components are respectively connected to the plurality of second bearing blocks for fixing the plurality of second bearing blocks in the plurality of second assembly slots. Several magnetic mounting components are disposed on the first support block, several fourth housings and several second support blocks. Any one of the magnetic mounting components is connected to the first support block, several fourth housings and several second support blocks, for fixing the several additional lenses to the image acquisition end of the main lens.

4. The magnetically attached optical lens as described in claim 3, characterized in that, The magnetic assembly includes: A first mounting hole is formed on the first support block, and the ports at both ends of the first mounting hole are exposed on the top surface and the bottom surface of the first support block, respectively. A plurality of second mounting holes are respectively formed on the plurality of second bearing blocks, and the ports at both ends of the second mounting holes are exposed on the top surface and the bottom surface of the second bearing block, respectively. A plurality of third magnets are respectively disposed in the cavities of the plurality of second assembly holes, and any one of the third magnets is interference-fitted with the corresponding second assembly hole; The first moving iron core is movably disposed in the inner cavity of the first assembly hole. The first moving iron core is magnetically attracted to one of the third magnets. The top end of the first moving iron core is movably inserted into the bottom end port of the second assembly hole at the corresponding position. The first moving iron core is slidably connected to the inner wall of the first assembly hole. A plurality of third assembly holes are respectively opened on the inner top wall of the plurality of second assembly slots, and any one of the third assembly holes penetrates the inner wall of the corresponding second assembly slot and is exposed to the outer surface of the fourth housing. A plurality of second moving iron cores are respectively movably disposed in the plurality of third assembly holes. Any one of the second moving iron cores is magnetically attracted to a pair of adjacent third magnets. The top ends of the plurality of second moving iron cores are respectively inserted into the bottom end ports of the remaining second assembly holes. Any one of the second moving iron cores is slidably connected to the inner wall of the third assembly hole.

5. The magnetically attached optical lens as described in claim 4, characterized in that, The first mounting hole is a countersunk hole, and the inner diameter of the upper part of the inner cavity of the first mounting hole is not less than the outer diameter of the top end of the first moving iron core and not greater than the outer diameter of the bottom end of the first moving iron core.

6. The magnetically attached optical lens as described in claim 4, characterized in that, The second mounting hole is a countersunk hole, and the third magnet is located in the upper part of the inner cavity of the second mounting hole. The inner diameter of the lower part of the inner cavity of the second mounting hole is smaller than the outer diameter of the third magnet.

7. The magnetically attached optical lens as described in claim 4, characterized in that, The third mounting hole is a countersunk hole, and the inner diameter of the upper part of the inner cavity of the third mounting hole is not less than the outer diameter of the top end of the second moving iron core and not greater than the outer diameter of the bottom end of the second moving iron core.

8. The magnetically attached optical lens as described in claim 4, characterized in that, The bottom outer diameter of the second moving iron core is not less than the top port inner diameter of the second assembly hole.

9. The magnetically attached optical lens as described in claim 3, characterized in that, The first fastening assembly includes: The first threaded protrusion is fixedly disposed on the circumferential sidewall of the first bearing block; A first threaded groove is formed on the circumferential inner wall of the first assembly groove. The first threaded groove engages with the first threaded protrusion and is used to fix the first bearing block in the first assembly groove.

10. The magnetically attached optical lens as described in claim 3, characterized in that, The second fastening assembly includes: The second threaded protrusion is fixedly disposed on the circumferential sidewall of the second bearing block; The second threaded groove is formed on the circumferential inner wall of the second assembly groove. The second threaded groove engages with the second threaded protrusion and is used to fix the second bearing block inside the second assembly groove.

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