Filter assembly

Abstract

A filter assembly comprises a frame having a lens mounting space for mounting a filter lens; an adjusting protrusion arranged on the frame, the adjusting protrusion protruding along an axial direction of the frame; and a rim base detachably connected to the frame, a region of the rim base opposite to the lens mounting space being arranged to be empty; a rotating track is arranged on a surface of the rim base close to the frame along the axial direction, and the adjusting protrusion is rotationally matched with the rotating track. Through assembly of the frame and the rim base, the filter lens can be flexibly mounted on a camera device, and the frame can be rotated relative to the rim base along a circumferential direction, so that the filter effect can be conveniently adjusted, and the shooting experience is improved.

Description

Technical Field

[0001] This utility model relates to the field of filter technology, and specifically to a filter assembly. Background Technology

[0002] To achieve a variety of shooting effects, camera filters are often mounted on cameras in related technologies. A camera filter is an additional lens installed in front of the camera lens to meet the various needs of photographers. Depending on the requirements, photographers may need to use two or more filters in combination to add filter effects to the shot. However, the user experience of filters in related technologies is relatively limited and cannot meet the shooting needs of photographers in different scenarios. Utility Model Content

[0003] The main technical problem this invention addresses is that camera filters in related technologies offer a limited user experience and fail to meet the needs of shooting in various scenarios.

[0004] To address the aforementioned technical problems, this application provides a filter assembly, including:

[0005] Eyeglass frame with lens mounting space for mounting filter lenses;

[0006] An adjusting protrusion is provided on the eyeglass frame, and the adjusting protrusion protrudes along the axial direction of the eyeglass frame;

[0007] An extension coil base is used to mount the lens of a camera device. The extension coil base is detachably connected to the lens frame. The area of ​​the extension coil base opposite to the lens mounting space is provided with an open space. The surface of the extension coil base near the lens frame along the axial direction is provided with a rotating track, and the adjusting protrusion is rotatably engaged with the rotating track.

[0008] In one embodiment, the mounting ring base is provided with a mounting flange arranged circumferentially along the mounting ring base and extending along the axial direction close to the frame; the rotation track is formed on the side of the mounting flange radially close to the lens mounting space.

[0009] In one embodiment, the mounting base has a fixing clip on its surface close to the frame along the axial direction. The fixing clip has an opening facing the lens mounting space, and the shape and size of the fixing clip match the adjusting protrusion.

[0010] In one embodiment, the receiving ring base further includes an assembly limiting part, which is circumferentially disposed on the inner side of the assembly flange. The top surface of the assembly limiting part is connected to the inner side surface of the assembly flange, and the top surface of the assembly limiting part and the inner side surface of the assembly flange enclose the rotating track to form the accommodating space formed by the rotating track matches the shape and size of the adjusting protrusion.

[0011] In one embodiment, the mounting base is further provided with a mounting groove on the surface of the eyeglass frame along the axial direction, the mounting groove having an opening facing the eyeglass frame along the axial direction; the filter assembly further includes a magnetic chuck and a magnet, one of the magnetic chuck and the magnet being fixedly disposed in the mounting groove, and the other being fixedly disposed in the eyeglass frame, and the positions of the magnetic chuck and the magnet being matched with each other.

[0012] In one embodiment, the filter assembly further includes a cover layer, which is fixedly disposed at the opening of the mounting groove and covers the magnetic element or magnet therein.

[0013] In one embodiment, the cover layer is a component made of a flexible material, and the top of the cover layer is lower than the top of the mounting slot.

[0014] In one embodiment, both the frame and the mounting base are circular structures.

[0015] In one embodiment, the filter assembly further includes a filter connecting bracket, which is disposed at one end of the frame away from the adapter base along the axial direction and is movably connected to the frame; an adjusting protrusion is provided at one end of the filter connecting bracket facing the frame; a first adjusting track and a second adjusting track are provided at one end of the frame away from the adapter base along the axial direction, extending circumferentially along the lens mounting space, the first adjusting track and the second adjusting track are spaced apart, and the length of the first adjusting track is less than the length of the second adjusting track; the adjusting protrusion is capable of relative rotation along the first adjusting track or the second adjusting track.

[0016] In one embodiment, the frame further includes at least two snap-fit ​​structures, which are in elastic contact with the frame via an elastic element. The elastic element provides the snap-fit ​​structures with an elastic restoring force radially away from the lens mounting space of the frame. The adjusting protrusion is disposed on the surface of the snap-fit ​​structure facing the mounting ring base.

[0017] In one embodiment, the inner side of the adapter base is further provided with a circumferentially extending assembly track, the opening of the assembly track facing the lens mounting space; the snap-fit ​​structure includes an operating part and a hook part, the hook part is fixedly disposed at one end of the operating part facing the adapter base, and the hook part extends radially away from the lens mounting space to cooperate with the assembly track.

[0018] According to the filter assembly of the above embodiment, the filter lens can be flexibly mounted on the camera device by assembling the frame and the adapter base, and the frame can rotate circumferentially relative to the adapter base, thereby facilitating the adjustment of the filter effect and improving the shooting experience. Attached Figure Description

[0019] Figure 1 This is an exploded view of the filter assembly in the embodiments of this application.

[0020] Figure 2 This is a schematic diagram of the base structure of the connector ring in the embodiment of this application.

[0021] Figure 3 This is a schematic diagram of the filter assembly from another perspective in an embodiment of this application.

[0022] Figure 4 This is a cross-sectional view of the coupling base in an embodiment of this application.

[0023] Figure 5 for Figure 4 A magnified schematic diagram of a portion of C in the image.

[0024] Figure 6 This is a schematic diagram of the eyeglass frame structure in an embodiment of this application.

[0025] Figure 7 This is a schematic diagram of the eyeglass frame from another perspective in an embodiment of this application.

[0026] Figure 8 This is a schematic diagram of the filter assembly structure after the filter connecting frame is stacked in an embodiment of this application.

[0027] Figure 9 This is a schematic diagram of the filter connecting bracket structure in an embodiment of this application.

[0028] Figure 10 This is a cross-sectional view of the eyeglass frame in an embodiment of this application.

[0029] Figure 11 for Figure 8 Enlarged schematic diagram of part A in the middle.

[0030] Figure 12 This is a cross-sectional view of another eyeglass frame in an embodiment of this application.

[0031] Figure 13 for Figure 10 A magnified view of part B in the middle.

[0032] Figure 14 This is a schematic diagram of an eyeglass frame explosion in an embodiment of this application.

[0033] Explanation of reference numerals in the attached figures:

[0034] 101-Frame; 102-Filter connector; 1011-Lens mounting space; 12-First side; 121-Flange; 1211-Main body; 1212-Limiting part; 124-Assembly rail; 13-Second side; 14-First adjustment rail; 15-Second adjustment rail; 103-Magnet; 1031-Magnetic suction element; 104-Snap-on structure; 171-Assembly protrusion; 1041-Operating part; 1042-Hook; 106-Elastic washer;

[0035] 2-Adjusting bump; 3-Connecting bump;

[0036] 4-Connecting ring base; 41-Assembly interface; 42-Fixing clamp; 43-Rotating track; 44-Assembly flange; 45-Assembly groove; 46-Covering layer; 47-Assembly limiting part; 48-Limiting track; 49-Limiting protrusion. Detailed Implementation

[0037] The present invention will now be described in further detail with reference to the accompanying drawings and specific embodiments. Similar elements in different embodiments are referred to by related similar element reference numerals. In the following embodiments, many details are described to facilitate a better understanding of the present application. However, those skilled in the art will readily recognize that some features may be omitted in different situations, or may be replaced by other elements, materials, or methods. In some cases, certain operations related to the present application are not shown or described in the specification. This is to avoid obscuring the core parts of the present application with excessive description. For those skilled in the art, detailed description of these related operations is not necessary; they can fully understand the related operations based on the description in the specification and general technical knowledge in the art.

[0038] Furthermore, the features, operations, or characteristics described in the specification can be combined in any suitable manner to form various embodiments. At the same time, the steps or actions in the method description can be rearranged or adjusted in a manner obvious to those skilled in the art. Therefore, the various orders in the specification and drawings are only for the clear description of a particular embodiment and do not imply a necessary order, unless otherwise stated that a particular order must be followed.

[0039] The serial numbers assigned to components in this document, such as "first" and "second," are used only to distinguish the described objects and have no sequential or technical meaning. The terms "connection" and "linkage" used in this application, unless otherwise specified, include both direct and indirect connections (linkages).

[0040] To achieve specific shooting effects, photographers attach various types of camera filters to their camera lenses. These include PL and CPL filters to eliminate reflected light, UV filters to block ultraviolet rays, ND filters to reduce light intake and slow down shutter speeds, GND filters to balance brightness by regionally reducing light intake, and star filters to create a radiant effect. In practice, photographers may need to use two or more filters to achieve specific results. However, the current technology for using camera filters is limited and cannot fully meet the needs of photographers.

[0041] To address the limitation of single-method application of camera filters in related technologies, this application provides a filter component. Please refer to... Figures 1 to 5 The filter assembly includes: a frame 101, an adjusting protrusion 2, and a mounting ring base 4; wherein, the frame 101 has a lens mounting space 1011 for mounting filter lenses; the adjusting protrusion 2 is disposed on the frame 101 and protrudes along the axial direction of the frame 101; the mounting ring base 4 is used to mount the lens of a camera device, wherein the mounting ring base 4 is detachably connected to the frame 101, and the area of ​​the mounting ring base 4 opposite to the lens mounting space 1011 is provided with a clearance; the surface of the mounting ring base 4 close to the frame 101 along the axial direction is provided with a rotating track 43, and the adjusting protrusion 2 is rotatably engaged with the rotating track 43.

[0042] The filter assembly in this embodiment is used to mount filter lenses and can also be mounted to a camera lens via the adapter base 4. The adapter base 4 has an assembly interface 41 for matching with the lens of the camera device to achieve installation. To load the filter lenses, the frame 101 in this embodiment has a hollow lens mounting space 1011, where the lens mounting space 1011 is used to place the filter lenses. The frame 101 has a mounting position for mounting the filter lenses inside the lens mounting space 1011. The filter lenses can be fixedly connected to the mounting position and placed in the lens mounting space 1011. For example, a mounting groove matching the filter lenses can be provided inside the frame 101, or threaded fasteners, clips, etc., can be used to fix the filter lenses. In addition, for ease of assembly, the frame 101 in this embodiment can be formed by splicing multiple parts. For example, based on the mounting slot of the filter lens, the frame 101 can be split into two or more parts along the axial direction, the multiple parts can be connected along the axial direction, and then the filter lens can be clamped between the multiple parts, thereby realizing the fixed connection between the filter lens and the frame 101.

[0043] To facilitate the installation of the frame 101 and the adapter base, and to allow the frame 101 to rotate circumferentially relative to the adapter base after installation, an adjustment protrusion 2 is included. The adjustment protrusion 2 is located on the frame 101 and protrudes axially along the frame 101, meaning it protrudes outward from the frame 101 along its axial direction. Correspondingly, the adapter base 4 is detachably connected to the frame 101, and a rotating track 43 is provided on the surface of the adapter base 4 axially close to the frame 101. The adjustment protrusion 2 rotatably engages with the rotating track 43. The rotating track 43 has an opening axially towards the frame 101, allowing the protruding adjustment protrusion 2 to extend into the rotating track 43 and rotate along it. This allows the frame 101 to rotate relative to the adapter base 4, facilitating filter adjustment and improving the shooting experience.

[0044] The adapter base 4 is detachably connected to the lens frame 101. The end of the adapter base 4 away from the lens frame 101 is provided with an assembly interface 41. The size and shape of the assembly interface 41 are matched with the lens of the camera device to be assembled, so that the entire filter assembly can be assembled with the camera device.

[0045] In some alternative embodiments, to form the rotating track 43, the connector base 4 may specifically be provided with a mounting flange 44. The mounting flange 44 is arranged circumferentially along the connector base 4 and extends axially toward the frame 101. The rotating track 43 is formed on the side of the mounting flange 44 that is radially close to the lens mounting space. The mounting flange 44 prevents the adjusting protrusion 2 from disengaging radially from the rotating track 43, and as the mounting flange 44 extends, the space inside the mounting flange 44 forms the rotating track 43.

[0046] In some alternative embodiments, the frame 101 and the adapter base 4 can rotate circumferentially. To fix the frame 101 and the adapter base 4 relative to each other, the adapter base 4 is provided with a fixing slot 42 on its surface axially close to the frame 101. The fixing slot 42 has an opening facing the lens mounting space 1011 of the adapter base 4, and the shape and size of the fixing slot 42 match the adjusting protrusion 2. Since the fixing slot 42 is provided on the surface of the adapter base 4, by placing the adjusting protrusion 2 on the frame 101 into the fixing slot 42, the adjusting protrusion 2 can be prevented from continuing to rotate along the rotation track 43, thus achieving the purpose of fixing the frame 101 and the adjusting protrusion 2 to each other. This state is suitable for fixing one of the frames 101 when at least two frames 101 are stacked, allowing the other frames 101 to rotate relative to the fixed frame 101, thereby achieving the adjustment of the filter effect.

[0047] In some optional embodiments, to facilitate the connection between the frame 101 and the mounting base 4, the mounting base 4 further includes an assembly limiting part 47, which is circumferentially disposed on the inner side of the mounting flange 44. The top surface of the assembly limiting part 47 is connected to the inner surface of the mounting flange 44, and the top surface of the assembly limiting part 47 and the inner surface of the mounting flange 44 enclose each other to form a rotating track 43. The accommodating space formed by the rotating track 43 matches the shape and size of the adjusting protrusion 2. The surfaces of the assembly limiting part 47 and the mounting flange 44 that are close to each other are connected to form a rotating track 43 for the adjusting protrusion 2 to be inserted and rotated along its direction. This guides the movement direction of the adjusting protrusion 2 and limits its position, preventing misalignment between the frame 101 and the mounting base 4.

[0048] In some optional embodiments, to ensure a relatively stable connection between the adapter base 4 and the frame 101 and prevent separation, the adapter base 4 is provided with an assembly groove 45 on its axial surface near the frame 101. The assembly groove 45 has an axial opening facing the frame 101. The filter assembly also includes a magnetic 1031 and a magnet 103. One of the magnetic 1031 and the magnet 103 is fixedly disposed in the assembly groove 45, and the other is fixedly disposed in the frame 101, with the positions of the magnetic 1031 and the magnet 103 matching. By providing the assembly groove 45 on the adapter base 4, the magnetic 1031 or the magnet 103 can be accommodated. Then, the magnet 103 or the magnetic 1031 is correspondingly disposed on the frame 101. Through the cooperation between the magnet 103 and the magnetic 1031, the adapter base 4 and the frame 101 can form a fixed connection based on magnetic attraction, preventing separation between them. To facilitate assembly, the magnet 103 may include multiple sub-magnetic components, which are arranged sequentially along the circumference.

[0049] In some alternative embodiments, to protect the adapter base 4 and the frame 101 from scratches during relative rotation, the filter assembly may further include a cover layer 46. The cover layer 46 is fixedly disposed at the opening of the mounting groove 45 and covers the magnetic 1031 or magnet 103 therein. By providing a cover layer 46 at the opening of the mounting groove 45, the magnetic 1031 or magnet 103 located in the mounting groove 45 can be prevented from falling out of the mounting groove 45. On the other hand, it can provide a buffer for the contact between the frame 101 and the adapter base 4, preventing direct hard contact between the frame 101 and the adapter base 4, which would cause wear on the surface of the adapter base 4 or the frame 101 during rotation of the frame 101 relative to the adapter base 4.

[0050] In some alternative embodiments, to prevent the cover layer 46 itself from scratching the frame 101, the top of the cover layer 46 is positioned lower than the top of the mounting groove 45. This prevents the mounting groove 4 from directly contacting the frame 101 through the cover layer 46 when the frame 101 is assembled with the mounting ring base 4. Furthermore, the cover layer 46 can be made of a flexible material, allowing for soft contact with the frame 101 and preventing scratches. Additionally, since the top of the cover layer 46 is lower than the top of the mounting groove 45, the cover layer 46 and the mounting groove 45 together form a limiting track 48, which can accommodate the limiting protrusion 49 of the frame 101 axially approaching the mounting ring base 4, resulting in a tighter and more stable connection between the frame 101 and the mounting ring base 4.

[0051] In some alternative embodiments, for ease of assembly and adaptation to lenses on camera equipment, both the lens mount 101 and the adapter coil base 4 can be annular structures. By configuring the adapter coil base 4 and the lens mount 101 as annular, similar to the shape of the lens, they can rotate more freely along the contour of the annulus.

[0052] In the filter assembly of this application embodiment, in order to achieve filter effect adjustment, two or more frames 101 can be stacked on top of each other. Please refer to... Figure 6 and Figure 7 In this embodiment, the eyeglass frame 101 has a first side 12 and a second side 13 arranged opposite to each other along its axial direction. When two or more eyeglass frames 101 are stacked, the first side 12 and the second side 13 are connected to each other between adjacent eyeglass frames 101. In order to allow adjacent eyeglass frames 101 to adjust the filter effect by rotating relative to each other, in this embodiment, the first side 12 is formed with an adjustment track extending in the circumferential direction, namely a first adjustment track 14 and a second adjustment track 15. The two adjustment tracks are spaced apart, which means that the first adjustment track 14 and the second adjustment track 15 are separated from each other. When the eyeglass frame 101 rotates along one of the adjustment tracks, it will not cross the first adjustment track 14 and enter the second adjustment track 15, nor will it cross the second adjustment track 15 and enter the first adjustment track 14. The difference between the first adjustment track 14 and the second adjustment track 15 is that the first adjustment track 14 is shorter. Therefore, if the adjustment is made by rotating along the first adjustment track 14, the range of relative rotation angles between the frames 101 is smaller, which means the adjustment range of the filter is smaller. It is more suitable for adjusting polarizing filters, such as PL (Polarizer) filters and CPL (Circular Polarizer) filters, to form multiple levels of light reduction effect. Based on the characteristics of CPL and PL filters, two CPL filters need to be stacked together while distinguishing their front and back sides in order to achieve the VND effect of adjustable light intake by rotating them. Therefore, this places requirements on the filter lenses mounted on the frame 101 and the filter connecting frame 102. When two PL lenses are stacked together, it may affect the focusing effect of the camera device during shooting. Therefore, in this embodiment, when a set of frame 101 and filter connecting frame 102 are stacked, one CPL filter and one PL filter can be stacked together, so as to achieve the purpose of adjustable light intake while taking into account both assembly convenience and focusing effect.

[0053] The second adjustment track 15 is longer, so if the rotation adjustment is made according to the second adjustment track 15, the relative rotation angle between the frames 101 is larger, the adjustment range of the filter is larger, and it is more suitable for adjusting single polarizing lenses (such as PL filters or CPL filters) and other effect lenses, such as star filters, brushed filters, color filters, etc.

[0054] The filter assembly in this embodiment can be used to stack more components; please refer to Figure 8 and Figure 9 In some optional embodiments, the filter assembly may further include a filter connecting bracket 102, wherein the filter connecting bracket 102 is disposed at one end of the frame away from the base of the mounting ring along the axial direction and is movably connected to the frame; the end of the filter connecting bracket 102 facing the frame is provided with a connecting protrusion 3; the end of the frame away from the base of the mounting ring along the axial direction is provided with a first adjustment track and a second adjustment track extending circumferentially along the lens mounting space, the first adjustment track and the second adjustment track are spaced apart, and the length of the first adjustment track is less than the length of the second adjustment track; the connecting protrusion 3 is capable of relative rotation along the first adjustment track or the second adjustment track. To facilitate rotation along the adjustment rails when multiple filter holders 102 are stacked, including rotation based on and confined to the path provided by the adjustment rails, the additionally stacked filter holders 102 in this embodiment are provided with connecting protrusions 3. The position of the connecting protrusions 3 matches the circumference of the first adjustment rail 14 or the second adjustment rail 15. When the position of the connecting protrusions 3 matches the circumference of the first adjustment rail 14, the connecting protrusions 3 can be placed within the first adjustment rail 14 and move along the first adjustment rail 14; when the position of the connecting protrusions 3 matches the circumference of the second adjustment rail 15, the connecting protrusions 3 can be placed within the second adjustment rail 15 and move along the second adjustment rail 15. In other words, the range of motion of the connecting protrusions 3 depends on the rail they are on. Therefore, in this embodiment of the application, the relative rotation between the adjacent lens frame 101 and the filter connecting frame 102 is achieved by connecting the protrusion 3 with the first adjustment track 14 or the second adjustment track 15. Depending on the different filter lenses assembled with the corresponding filter assembly, different filter adjustment effects can be achieved, including but not limited to polarization reduction, ultraviolet removal, starlight display, etc., which enriches the shooting experience of photographers.

[0055] In this embodiment, the connection between the adjusting protrusion 2 and the frame 101 can be directly integrally formed, or the adjusting protrusion 2 can be set independently of the frame 101, which is equivalent to the adjusting protrusion 2 being movably connected to the frame 101. The connection between the connecting protrusion 3 and the filter connecting bracket 102 can also be an integral fixed connection or a separate movable connection.

[0056] In some alternative embodiments, to allow the connecting protrusion 3 to selectively match the first adjustment track 14 or the second adjustment track 15, the first adjustment track 14 and the second adjustment track 15 can extend along the same circumference and be isolated from each other. In other words, the first adjustment track 14 and the second adjustment track 15 can be formed by splitting tracks on the same circumference, so that the connecting protrusion 3 can selectively move within the first adjustment track 14 or the second adjustment track 15 to adapt to different types of filters, which is equivalent to increasing the types of filters that can be fitted to the frame 101 in this embodiment.

[0057] In some alternative embodiments, in order to form the first adjustment track 14 and the second adjustment track 15, the outer edge region of the first side 12 may be provided with a flange 121 extending in the circumferential direction, wherein the flange 121 includes a body portion 1211 extending in the circumferential direction and at least two limiting portions 1212, wherein one end of the limiting portion 1212 is fixed to the body portion 1211, and the other end extends radially close to the lens mounting space 1011 of the frame 101, and the two limiting portions 1212 and the body portion enclose to form the required first adjustment track 14 and the second adjustment track 15. By providing a flange 121 higher than other parts of the first side 12 in the outer edge region, wherein the flange includes a body portion 1211 and a limiting portion 1212, a circumferential track for the movement of the connecting protrusion 3 can be formed inside the body portion 1211; the flange 121 also has at least two limiting portions 1212, which divide the entire circumferential track inside the body portion 1211 into two separate arc segments, one of which is equivalent to an adjustment track. Therefore, the two arc segments correspond to the first adjustment track 14 and the second adjustment track 15, respectively, wherein the arc length corresponding to the first adjustment track 14 is smaller, and the arc length corresponding to the second adjustment track 15 is larger. In this structure, the connecting protrusion 3 on adjacent filter connecting brackets 102 can be selectively positioned on the first adjustment track 14 or the second adjustment track 15, and can slide under the restriction of the two limiting portions 1212. When the limiting part 1212 is set to three or more, more adjustment tracks can be formed on the first side 12, instead of being limited to only the first adjustment track 14 and the second adjustment track 15.

[0058] In some optional embodiments, in order to ensure the specific filter adjustment effect, the arc angle range of the first adjustment track 14 is between 50° and 80°, for example, it can be 50°, 55°, 60°, 65°, 70°, 72.5°, 75°, 80°, etc., and the arc angle range of the second adjustment track 15 is between 180° and 240°, for example, it can be 185°, 190°, 195°, 200°, 210°, 220°, 230°, 240°, etc.

[0059] In some optional embodiments, a CPL filter and a PL filter are stacked, with the PL filter in front and closer to the target, and the CPL filter behind and closer to the camera. After the CPL filter is fixed, the PL filter can be adjusted on the first adjustment track 14. The rotation of the PL filter and the CPL filter changes the light transmittance. The most ideal filter effect can be obtained within a range of 72.5°. Users can choose the appropriate rotation angle according to their own shooting needs.

[0060] In some alternative embodiments, to facilitate adjustment of the position of the adjusting protrusion 2, the frame 101 may further include at least two snap-fit ​​structures 104. The snap-fit ​​structures 104 are in elastic contact with the frame 101 through an elastic member, which provides the snap-fit ​​structures 104 with an elastic restoring force radially away from the lens mounting space 1011 of the frame 101. The adjusting protrusion 2 is disposed on the surface of the snap-fit ​​structure 104 facing the lens mount base 4. In this embodiment, by disposing the adjusting protrusion 2 on the snap-fit ​​structure 104 that is elastically connected to the frame 101, the position of the adjusting protrusion 2 can be changed accordingly by adjusting the position of the snap-fit ​​structure 104, allowing the adjusting protrusion 2 to switch between inserted and removed states. In the elastic contact formed between the snap-fit ​​structure 104 and the frame 101 through an elastic element, the elastic element causes the snap-fit ​​structure 104 to tend to move radially away from the lens mounting space of the frame 101. This means that the snap-fit ​​structure 104 will naturally move away from the lens mounting space of the frame 101, and the adjusting protrusion 2 will also tend to move away from the frame 101. In this state, the adjusting protrusion 2 will abut against the edge of the rotating track, so that adjacent frames 101 form a tight connection. The elastic element can be a component with elasticity, such as a spring or a spring sheet, which can deform arbitrarily within its elastic deformation range and then recover. For example, a compression spring can be placed between the snap-fit ​​structure 104 and the frame 101. The compression spring is in a compressed state, so it has a tendency to elongate, which causes the snap-fit ​​structure 104 to have an elastic restoring force away from the frame 101 in the direction of the compression spring's elongation tendency.

[0061] In some alternative embodiments, please refer to Figures 10 to 13As shown, in order to strengthen the connection between the frame 101 and the adapter base 4 when they are stacked together and to prevent the filter holders from detaching from each other, the inner side of the adapter base 4 can also be provided with a circumferentially extending assembly track 124, wherein the opening of the assembly track 124 faces the lens mounting space 1011 of the frame 101; the snap-fit ​​structure 104 includes an operating part 1041 and a hook part 1042. The hook part 1042 is fixedly disposed at the end of the operating part 1041 facing the adapter base 4, and the hook part 1042 extends radially away from the lens mounting space 1011 of the frame 101 to cooperate with the assembly track 124. The opening of the mounting track 124 faces the lens mounting space 1011 of the frame 101 and is laterally positioned relative to the adjustment track, specifically formed on the inner circumference of the flange 121. The snap-fit ​​structure 104 is also provided with a hook 1042, which extends radially away from the lens mounting space 1011 of the frame 101, i.e., outward. Therefore, when the two filter holders are assembled and connected, the hook 1042 on the snap-fit ​​structure 104 will be placed into the mounting track 124 of the adjacent filter holder. Since the hook 1042 extends outward and the opening of the mounting track 124 faces inward, and the elastic connection between the snap-fit ​​structure 104 and the frame 101 makes the snap-fit ​​structure 104 tend to move away from the central area of ​​the frame 101, the hook 1042 also tends to penetrate into the mounting track 124, thereby effectively preventing the two filter holders from separating.

[0062] The operating part 1041 of the buckle structure 104 is used by the operator to perform operations such as pressing the buckle structure 104 based on the elastic connection between the buckle structure 104 and the frame 101, so as to adjust the relative position between the buckle structure 104 and the frame 101, and then adjust the components provided on the buckle structure 104, including the adjusting protrusion 2 and the hook 1042, so as to facilitate the assembly operation between the frame 101 and the mounting base 4.

[0063] In the embodiments of this application, each snap-fit ​​structure 104 is arranged at equal intervals along the circumference of the frame 101. For example, when there are two snap-fit ​​structures 104, the two snap-fit ​​structures 104 are arranged radially opposite each other; when there are three snap-fit ​​structures 104, the three snap-fit ​​structures are each spaced 120° apart, and so on.

[0064] In some alternative embodiments, to further improve assembly reliability, both individual components can be protected, and damping can be provided for rotation between the frames 101. Please refer to [reference needed]. Figure 13 and Figure 14An elastic washer 106 may also be provided inside the rotating track 43, extending along the surface facing the opening of the rotating track 43. By providing the elastic washer 106 inside the rotating track 43, direct contact between the hook 1042 and the rotating track 43 can be avoided, thereby preventing wear on the hook 1042 and the rotating track 43; while by providing the elastic washer 106 between the rotating track 43 and the hook 1042, flexible contact between the rotating track 43 and the hook 1042 can be achieved, providing rotational damping through flexible contact.

[0065] In addition, the filter assembly in this application embodiment can be equipped with more lens frames 101 to achieve the cooperation of multiple filters, and can also be equipped with structures such as lens caps to protect the lens elements of the filters.

[0066] According to the filter assembly of the above embodiment, the filter lens can be flexibly mounted on the camera device by assembling the frame and the adapter base, and the frame can rotate circumferentially relative to the adapter base, thereby facilitating the adjustment of the filter effect and improving the shooting experience.

[0067] The above-described specific examples are for illustrative purposes only and are not intended to limit the scope of this invention. Those skilled in the art can make various simple deductions, modifications, or substitutions based on the concept of this invention.

Claims

1. A filter assembly, characterized in that, include: Eyeglass frame with lens mounting space for mounting filter lenses; An adjusting protrusion is provided on the eyeglass frame, and the adjusting protrusion protrudes along the axial direction of the eyeglass frame; An extension coil base is used to mount the lens of a camera device. The extension coil base is detachably connected to the lens frame. The area of ​​the extension coil base opposite to the lens mounting space is provided with an open space. The surface of the extension coil base near the lens frame along the axial direction is provided with a rotating track, and the adjusting protrusion is rotatably engaged with the rotating track.

2. The filter assembly as claimed in claim 1, characterized in that, The mounting base is provided with a mounting flange, which is arranged circumferentially along the mounting base and extends along the axial direction close to the frame; the rotation track is formed on the side of the mounting flange that is radially close to the lens mounting space.

3. The filter assembly as described in claim 1, characterized in that, The mounting base has a fixing clip on its surface close to the frame along the axial direction. The fixing clip has an opening facing the lens mounting space, and the shape and size of the fixing clip match the adjusting protrusion.

4. The filter assembly as described in claim 2, characterized in that, The base of the connecting ring also includes an assembly limiting part, which is circumferentially disposed on the inner side of the assembly flange. The top surface of the assembly limiting part is connected to the inner side surface of the assembly flange, and the top surface of the assembly limiting part and the inner side surface of the assembly flange enclose the rotating track to form the accommodating space formed by the rotating track matches the shape and size of the adjusting protrusion.

5. The filter assembly as described in any one of claims 1-4, characterized in that, The mounting base is provided with a mounting groove on the surface of the eyeglass frame along the axial direction. The mounting groove has an opening facing the eyeglass frame along the axial direction. The filter assembly also includes a magnetic chuck and a magnet. One of the magnetic chuck and the magnet is fixedly disposed in the mounting groove, and the other is fixedly disposed in the eyeglass frame. The positions of the magnetic chuck and the magnet are matched with each other.

6. The filter assembly as claimed in claim 5, characterized in that, The filter assembly also includes a cover layer, which is fixedly disposed at the opening of the mounting slot and covers the magnetic element or magnet therein.

7. The filter assembly as described in any one of claims 1-4, characterized in that, Both the frame and the mounting base are circular structures.

8. The filter assembly as described in any one of claims 1-4, characterized in that, The filter assembly further includes a filter connecting bracket, which is disposed at one end of the frame away from the connector base along the axial direction and is movably connected to the frame; the end of the filter connecting bracket facing the frame is provided with a connecting protrusion; the end of the frame away from the connector base along the axial direction is provided with a first adjustment track and a second adjustment track extending circumferentially along the lens mounting space, the first adjustment track and the second adjustment track are spaced apart, and the length of the first adjustment track is less than the length of the second adjustment track; The connecting protrusion can rotate relative to the first or second adjustment track.

9. The filter assembly as described in any one of claims 1-4, characterized in that, The frame also includes at least two snap-fit ​​structures, which are in elastic contact with the frame via an elastic element. The elastic element provides the snap-fit ​​structure with an elastic restoring force along the radial direction of the frame away from the lens mounting space. The adjusting protrusion is disposed on the surface of the snap-fit ​​structure facing the mounting ring base.

10. The filter assembly as claimed in claim 9, characterized in that, The inner side of the adapter base is also provided with a circumferentially extending assembly track, the opening of which faces the lens mounting space; the buckle structure includes an operating part and a hook part, the hook part is fixedly disposed at one end of the operating part facing the adapter base, and the hook part extends radially away from the lens mounting space to cooperate with the assembly track.

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