A filter holder and filter assembly

Abstract

The application relates to the technical field of photographic accessories, in particular to a filter frame and a filter assembly. The filter assembly comprises a filter frame, a lens and an adapter ring. The filter frame comprises a frame, the frame is provided with a first accommodating groove, the frame has an opening, the lens is arranged into the first accommodating groove through the opening, a buckle cover is arranged at the opening, the buckle cover is provided with a second accommodating groove corresponding to the first accommodating groove, and the buckle cover is connected with the frame through a detachable connecting structure, so that the buckle cover can be detached when the lens is arranged into the first accommodating groove. The filter frame can conveniently arrange the lens on the filter frame and replace the lens.

Description

Technical Field

[0001] This application relates to the field of photographic accessory technology, specifically to a filter holder and filter assembly. Background Technology

[0002] To achieve the desired shooting effect, different types of filters are usually placed in front of the lens of shooting devices such as cameras or camcorders. Filters have functions such as optical correction, protection, color adjustment, creative expression, light control, exposure control, and special shooting effects to meet various needs of photographic work.

[0003] Examples of filters include polarizing filters, neutral density filters, ultraviolet filters, and color filters. Photographers control the incident light by adjusting the direction and angle of the filter to achieve the desired image effect. For example, polarizing filters reduce reflections, making the sky bluer and colors more saturated; neutral density filters reduce the amount of light entering the lens, extending exposure time, making them suitable for shooting flowing water or night scenes; ultraviolet filters primarily eliminate ultraviolet rays from the atmosphere, improving image sharpness; and color filters can change the color tone of the image to create a specific atmosphere.

[0004] In actual shooting, filters need to be changed according to shooting requirements. Therefore, how to make filters easy to change is a technical problem that filter designers need to consider. Utility Model Content

[0005] This application provides a filter holder to facilitate filter replacement; this application also provides a filter assembly using the above-mentioned filter holder.

[0006] In a first aspect, this application provides a filter holder for mounting lenses, the filter holder comprising:

[0007] The frame has a first receiving slot for receiving a lens, and the frame has an opening in its circumferential direction, through which the lens can be inserted into the first receiving slot.

[0008] A cover is provided at the opening, and the cover is provided with a second receiving groove corresponding to the first receiving groove. The first receiving groove and the second receiving groove form a mounting groove for installing the lens.

[0009] The cover is connected to the frame via a detachable connection structure, allowing it to be removed from the frame when the lens is installed into the mounting slot.

[0010] In one technical solution, the cover includes two ends corresponding to the two ends of the mirror frame at the opening, and a detachable connection structure is provided between one end of the opening and one of the ends.

[0011] In one technical solution, the detachable connection structure is a snap-fit ​​assembly, which includes a fixed hook and a movable hook. The movable hook includes an unlocking part and a hook connected to each other. The unlocking part is rotatably mounted on one of the mirror frame and the cover via a pivot. The fixed hook is disposed on the other of the mirror frame and the cover. The fixed hook has a hook groove. In the locked state, the hook is held in the hook groove. In the unlocked state, the hook is disengaged from the hook groove.

[0012] In one technical solution, the frame is provided with at least two first receiving slots, and the cover is provided with at least two second receiving slots. The positions of the second receiving slots correspond to the positions of the first receiving slots. A corresponding first receiving slot and a second receiving slot form a mounting slot. The mounting slots are arranged at intervals along a first direction, so that the lenses installed in each mounting slot are stacked.

[0013] In one technical solution, the mounting slot is used to mount the circular lens. The filter frame includes adjusting rollers respectively provided for each mounting slot. The adjusting rollers are rotatably mounted on the lens frame or the cover. A portion of each adjusting roller extends into the corresponding mounting slot to contact the outer peripheral surface of the lens, and another portion protrudes from the lens frame or the cover, so that the operator can turn the adjusting roller to drive the lens to rotate.

[0014] In one technical solution, the filter frame further includes a plurality of first posts respectively provided for each of the mounting slots. The first posts are provided on the frame, and the plurality of first posts corresponding to each mounting slot are arranged at intervals along the circumference of the frame. The cylindrical surface of each first post is at least partially located in the corresponding mounting slot, so that the plurality of first posts provided for each mounting slot can cooperate with the corresponding lens.

[0015] In one technical solution, the filter frame further includes a second post corresponding to each of the mounting slots. The second post is disposed on the cover, and at least part of the surface of the second post is located in the corresponding mounting slot. In two adjacent mounting slots, along the first direction, the adjusting roller corresponding to one of the mounting slots is located on one side of the second post corresponding to the other mounting slot. The cover includes a base and a pressure plate connected to the base. The adjusting roller and the second post, which are correspondingly disposed along the first direction, are disposed between the base and the pressure plate.

[0016] In one technical solution, the filter frame further includes a frame-shaped base. Along the groove width direction corresponding to the thickness direction of the first receiving groove, the frame-shaped base is connected to at least one side of the frame. The frame-shaped base has a positioning surface located at the opening. Along the groove width direction corresponding to the thickness direction of the first receiving groove, the positioning surface positions the cover so that the second receiving groove can be aligned with the corresponding first receiving groove.

[0017] In one technical solution, the filter frame further includes a magnet, enabling the filter frame to be magnetically connected to an external structure and installed at a target position. Along the width direction of the first receiving groove corresponding to the thickness direction of the lens, the magnet is located on one side of the first receiving groove.

[0018] And / or, the filter frame includes a hook, enabling the filter frame to be hooked and connected to an external structure for installation at a target location, with the hook located on one side of the first receiving groove along the groove width direction corresponding to the thickness direction of the lens.

[0019] Secondly, this application provides a filter assembly, comprising:

[0020] Filter frame as described in any of the above technical solutions;

[0021] Lens, mounted on the filter frame;

[0022] An adapter ring having a frame connection structure and a lens connection structure, wherein the frame connection structure is used to connect the filter frame and the lens connection structure is used to connect to the lens of a photographic device.

[0023] The beneficial effects of this application are as follows:

[0024] In the above technical solution, the cover of the filter frame of the filter assembly is connected to the lens frame through a detachable connection structure. When the lens needs to be replaced, the cover can be removed from the lens frame before the lens is installed. Since the cover has been removed when the lens is installed, there will be no situation where the cover is accidentally fastened and affects the smooth installation of the lens, thus ensuring convenient lens replacement. Attached Figure Description

[0025] Figure 1 This is a schematic diagram of the structure of the filter frame and lens in a filter assembly according to one embodiment of this application;

[0026] Figure 2 for Figure 1 A schematic diagram showing the disassembled structure of the filter frame and lens;

[0027] Figure 3 This is a schematic diagram of the main body of the filter frame in a filter assembly according to one embodiment of this application;

[0028] Figure 4 This is a schematic diagram of the structure of the cover and related components in one embodiment of this application;

[0029] Figure 5 This is a schematic diagram of the structure of the movable hook of the filter assembly in one embodiment of this application;

[0030] Figure 6 This is an exploded view of the main body and related mating parts of a filter assembly in one embodiment of this application;

[0031] Figure 7 This is a schematic diagram of the structure of the second slot cover of the filter assembly in one embodiment of this application;

[0032] Figure 8 This is a schematic diagram of the snap-fit ​​structure of the filter assembly in one embodiment of this application;

[0033] Figure 9 This is a schematic diagram of the snap-fit ​​mounting groove provided on the main body of the filter assembly in one embodiment of this application;

[0034] Figure 10 This is a cross-sectional schematic diagram of a filter assembly in one embodiment of this application;

[0035] Figure 11 This is a schematic diagram of the structure of the adapter ring of the filter assembly in one embodiment of this application;

[0036] Figure 12 This is a cross-sectional view of the adapter ring of the filter assembly in one embodiment of this application.

[0037] List of feature names corresponding to the labels in the figure:

[0038] 11. Filter frames;

[0039] 111. Main body; 1111. Frame; 1112. Opening; 1113. First receiving groove; 1114. Fixing hook; 11141. Hook groove; 11142. Guide slope; 1115. Column mounting groove; 1116. Connecting hole; 1117. Frame base; 11171. Positioning surface; 1118. Support platform; 1119. Ring groove; 11111. Snap-on mounting groove; 11112. Connecting hole; 11113. Guide post;

[0040] 112. Cover; 1121. Second receiving groove; 1122. Base; 1123. Pressure plate; 1124. End;

[0041] 113. Mounting slot;

[0042] 114. Clip-on assembly;

[0043] 115. Movable hook; 1151. Unlocking part; 1152. Hook; 1153. Rotary mounting hole;

[0044] 116. Adjust the rollers;

[0045] 117. First pillar; 1170. Second pillar;

[0046] 118. First slot cover;

[0047] 119. The first screw;

[0048] 1110. Second screw;

[0049] 1120. The first magnet;

[0050] 1130. Second groove cover; 1131. Cylindrical portion; 1132. Outer flange;

[0051] 1140. Snap-fit ​​structure; 1141. Operating part; 1142. Hook; 1143. Elongated hole; 1144. Guide hole;

[0052] 1150, the third screw;

[0053] 1160. Elastic reset component;

[0054] 12. Lens;

[0055] 13. Adapter ring; 131. Frame connection structure; 1311. Second magnet; 1312. Hook groove; 132. Lens connection structure. Detailed Implementation

[0056] The present application 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.

[0057] Furthermore, the features, operations, or characteristics described in the specification can be combined in any suitable manner to form various embodiments, and the operational steps involved in each embodiment can also be rearranged or adjusted in a manner that is obvious to those skilled in the art. Therefore, the specification and drawings are only for clearly describing a particular embodiment and do not imply that they represent the necessary components and / or order.

[0058] 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).

[0059] Embodiments of the filter assembly in this application:

[0060] Please refer to Figure 1 The filter assembly includes a filter holder 11 and lenses 12 mounted within the filter holder 11. The filter holder 11 and lenses 12 are assembled to form a filter. In some embodiments, the filter holder 11 has two mounting positions for mounting two lenses 12. Thus, two identical or different lenses 12 can be stacked on the filter holder 11 as needed, and the desired filtering effect can be achieved through the cooperation of the two lenses 12. Furthermore, since the two lenses 12 are mounted on the filter holder 11, they can be mounted and dismounted together on the lens of the photographic device, allowing for simultaneous mounting and dismounting of both lenses 12. Compared to mounting and dismounting individual filters, this filter assembly enables convenient mounting and dismounting of multiple lenses 12.

[0061] Of course, in some other embodiments, the filter holder 11 may also have more than two mounting positions, such as three, four or more, to allow more lenses 12 to be mounted on the filter holder 11. Of course, there may also be only one mounting position.

[0062] Please refer to Figure 2 The filter holder 11 consists of a main body 111 and a cover 112. For the structure of the main body 111, please refer to... Figure 3 The main body 111 includes a frame 1111, which has an opening 1112 in its circumferential direction. The frame 1111 also has a first receiving groove 1113 for accommodating a lens 12. In some embodiments, to accommodate two lenses 12, the frame 1111 has two first receiving grooves 1113, which are spaced apart along a first direction, and each first receiving groove 1113 accommodates one lens 12. Here, the first direction refers to the thickness direction of the lens 12, which is also the width direction of the first receiving groove 1113. The opening 1112 forms a mounting port for inserting the lens 12 into the first receiving groove 1113.

[0063] The cover 112 is used to seal the opening 1112. Please refer to [reference needed]. Figure 2 and Figure 4 The cover 112 is provided with a second receiving slot 1121 corresponding to the number and position of each first receiving slot 1113. The correspondence in number means that the number of first receiving slots 1113 and second receiving slots 1121 is the same and they correspond one to one. The correspondence in position means that each first receiving slot 1113 and each second receiving slot 1121 can be aligned. An aligned first receiving slot 1113 and a aligned second receiving slot 1121 form a mounting slot 113. Each mounting position of the filter frame 11 is provided with a mounting slot 113, and one lens 12 is mounted in one mounting slot 113.

[0064] To maintain the relative position of the cover 112 and the frame 1111, and to facilitate the removal of the cover 112 when installing the lens 12, the cover 112 is mounted on the main body 111 via a detachable connection structure. In some embodiments, based on the fact that the frame 1111 has two ends located at the opening 1112, the cover 112 has two ends 1124 corresponding to the two ends of the frame 1111, and a snap-fit ​​assembly 114 is provided between the two ends 1124 of the cover 112 and the main body 111. The snap-fit ​​assembly 114 constitutes a detachable connection structure, so that the cover 112 can be snapped onto the main body 111 via the two ends.

[0065] In some embodiments, such as Figure 2 , Figure 3 , Figure 4 and Figure 5 As shown, the snap fastener assembly 114 includes two fixed hooks 1114 located at both ends of the frame 1111. The snap fastener assembly 114 also includes a movable hook 115 rotatably mounted on the cover 112 about an axis extending along a first direction. The structure of the movable hook 115 is as follows: Figure 5 As shown, the movable hook 115 includes an unlocking part 1151 and a hook 1152. The unlocking part 1151 has a rotating mounting hole 1153. The movable hook 115 is rotatably mounted on the cover 112 via a rotating shaft that passes through the rotating mounting hole 1153. The fixed hook 1114 has a hook groove 11141. In the locked state, the hook 1152 is hooked in the hook groove 11141. In the unlocked state, the hook 1152 is disengaged from the hook groove 11141.

[0066] During the unlocking operation, pressing the unlocking part 1151 causes the movable hook 115 to rotate, and the hook 1152 moves out of the hook groove 11141. When installing the cover 112 onto the main body 111, after the cover 112 is in place, pressing the hook 1152 with a finger causes the hook 1152 to engage with the fixed hook 1114. In some other embodiments, the latch assembly 114 may also include an elastic element, such as a compression spring, disposed between the movable hook 115 and the cover 112. The elastic element can apply force to the unlocking part 1151 of the movable hook 115, causing the hook 1152 to engage with the fixed hook 1114. Please refer to [reference needed]. Figure 3 The fixed hook 1114 has a guide slope 11142. During assembly, the guide slope 11142 can guide the movable hook 115 to cooperate with the fixed hook 1114.

[0067] In some other embodiments, the fixed hook 1114 can be disposed on the cover 112, and the movable hook 115 can be disposed on the main body 111. The snap-fit ​​assembly 114 can also be of other structural forms, such as including an insertion hole on one of the main body 111 and the cover 112, and a plug on the other. A groove is provided on the inner wall of the insertion hole, and an elastic protrusion is provided on the plug. When the plug is inserted into the insertion hole, the elastic protrusion snaps into the groove, achieving a snap-fit ​​connection between the main body 111 and the cover 112. When the cover 112 needs to be removed, it can be forcibly removed to deform the elastic protrusion and dislodge it from the groove. In some other embodiments, the detachable connection structure can also be of other forms, such as a magnetic connection.

[0068] In this way, the cover 112 is connected to the main body 111 through a detachable connection structure. When the lens 12 needs to be installed, the cover 112 can be removed from the main body 111 before the lens 12 is installed. Since the cover 112 is removed as a whole, there will be no situation where the cover 112 is accidentally fastened and affects the normal installation of the lens 12.

[0069] Please refer to Figure 2 and Figure 4 In some embodiments, the lens 12 is a circular lens. To drive the lens 12 to rotate for angle adjustment, the filter assembly also includes adjusting rollers 116 respectively provided for each mounting slot 113. The adjusting rollers 116 are mounted on the cover 112, and their rotation axes extend along a first direction. Part of the adjusting roller 116 protrudes from the cover, allowing the operator to rotate the adjusting roller 116. The wheel surface of the adjusting roller 116 is located within the mounting slot 113, enabling the wheel surface of the adjusting roller 116 to engage with the circumferential surface of the lens 12 within the corresponding mounting slot 113. By rotating the adjusting roller 116, the lens 12 can be driven to rotate, thereby adjusting the angle of the lens 12. In other embodiments, the adjusting rollers 116 may also be mounted on the frame 1111.

[0070] Please refer to the reference. Figure 2, Figure 3 and Figure 4 Each mounting slot 113 is provided with multiple posts. Some posts are located on the mirror frame 1111, which are the first posts 117, and some posts are located on the cover 112, which are the second posts 1170.

[0071] Please refer to Figure 3 The frame 1111 has a post mounting groove 1115, and a connecting hole 1116 connecting the post mounting groove 1115 and the first receiving groove 1113. A first post 117 is rotatably mounted in the post mounting groove 1115, and the rotation axis of the first post 117 extends along a first direction. A portion of the cylindrical surface of the first post 117 extends into the first receiving groove 1113 through the connecting hole 1116, allowing the first post 117 to mate with the circumferential surface of the corresponding lens 12. The filter frame 11 also includes a first groove cover 118 covering the post mounting groove 1115, which is fixedly mounted on the main body 111 by a first screw 119. Two first posts 117 are provided for each mounting groove 113, and the two first posts 117 are arranged at intervals along the circumference of the frame 1111. In some other embodiments, more than two first posts 117, such as three or four, may be provided for each mounting groove 113.

[0072] Similarly, please refer to Figure 4 The second post 1170 is rotatably mounted on the cover 112, and its rotation axis extends along the first direction. The cylindrical portion of the second post 1170 on the cover 112 extends into the second receiving groove 1121. Furthermore, in two adjacent mounting grooves 113, along the first direction, the adjusting roller 116 corresponding to one mounting groove 113 is located on one side of the second post 1170 corresponding to the other mounting groove 113. This allows the adjusting roller 116 to cooperate with the post, achieving multi-point circumferential positioning of the lens 12, reducing the friction between the lens 12 and the filter frame 11, and ensuring smooth rotation of the lens 12. Regarding the number of second posts 1170 in each mounting groove 113, in some embodiments, please refer to... Figure 4 Each mounting slot 113 is provided with a second post 1170. In some other embodiments, each mounting slot 113 may be provided with a greater number of second posts 1170, such as two or three.

[0073] In some other embodiments, the lens 12 may also be non-circular, so that the lens 12 does not need to be rotated to adjust the angle. Therefore, there is no need to set up columns and adjusting rollers 116 in the filter frame 11.

[0074] In some embodiments, please refer to Figure 3The main body 111 includes a frame 1111 and a frame-shaped base 1117. The frame 1111 is located on one side of the frame-shaped base 1117 in a first direction. A support platform 1118 is provided on the frame-shaped base 1117, which can support the portion of the adjacent lens 12 that extends out of the frame 1111. The frame 1111 and the frame-shaped base 1117 can be two separate components or two parts of an integrated structure. The cover 112 can be directly connected to the frame 1111 via a detachable connection structure, or it can be indirectly connected to the frame 1111 via a detachable connection structure connected to the frame-shaped base 1117.

[0075] To facilitate alignment of the second receiving groove 1121 and the corresponding first receiving groove 1113 in the first direction, please refer to... Figure 3 The frame base 1117 has a positioning surface 11171, which positions the cover 112 in the first direction. The cover 112 cooperates with the positioning surface 11171 to align each second receiving groove 1121 with the corresponding first receiving groove 1113 in the first direction.

[0076] In some embodiments, please refer to Figure 4 An adjusting roller 116 is mounted on a cover 112, which includes a base 1122 and a pressure plate 1123. A snap-fit ​​assembly 114 is positioned between the base 1122 and the main body 111. The adjusting roller 116 and the second post 1170, correspondingly positioned along a first direction, are positioned between the base 1122 and the pressure plate 1123. The pressure plate 1123 is fixed to the base 1122 by a second screw 1110 that passes through it and is screwed onto the base 1122. The cover 112 engages with the positioning surface 11171 via the pressure plate 1123, thereby limiting the second screw 1110. This prevents the second screw 1110 from loosening after assembly.

[0077] In order to enable the filter assembly to be mounted on an external structure, such as a camera lens or camcorder lens, the filter holder 11 also has a connection structure for connecting to the external structure, so that the filter can be mounted at the target position through the connection structure.

[0078] In some embodiments, the connection structure includes a magnetic connection structure, such as... Figure 3 As shown, a ring groove 1119 is provided on the frame-shaped foundation 1117. The opening of the ring groove 1119 is in the first direction. Please refer to [reference needed]. Figure 6 The filter holder 11 also includes a first magnet 1120 and a second groove cover 1130. The first magnet 1120 is used to be disposed within the annular groove 1119, and the second groove cover 1130 is used to seal the opening of the annular groove 1119 to prevent the first magnet 1120 from falling out of the annular groove 1119. The outer wall surface of the inner groove wall of the annular groove 1119 has threads, please refer to... Figure 7 The second slot cover 1130 includes a cylindrical portion 1131 and an outer flange 1132 located at one end of the cylindrical portion 1131. The outer circumferential surface of the cylindrical portion 1131 has a threaded structure, so that the second slot cover 1130 can be screwed onto the outer wall of the annular groove 1119 through the cylindrical portion 1131 and the outer flange 1132 seals the opening of the annular groove 1119. Along the first direction, the first magnet 1120 is located on one side of the first receiving groove 1113.

[0079] In some embodiments, please refer to Figure 2 and Figure 6 The connecting structure also includes a snap-fit ​​structure 1140, which is movably mounted on the main body 111. Please refer to [reference needed]. Figure 8 The latching structure 1140 includes an operating part 1141 and a hook part 1142. The operating part 1141 is connected to the hook part 1142. Applying force to the operating part 1141 can drive the hook part 1142 to move. The hook part 1142 has a locking position and an unlocking position during its movement stroke. Through the operating part 1141, the hook part 1142 can be moved from the locked position to the unlocking position. Along the first direction, the hook part 1142 is located on one side of the first receiving groove 1113. Of course, in some other embodiments, the connection structure may be only a magnetic connection structure or only a hook connection structure.

[0080] Please refer to Figure 9 The main body 111 is provided with a snap-fit ​​mounting groove 11111. The opening of the snap-fit ​​mounting groove 11111 is located on the outside of the main body 111. The main body 111 includes a large diameter section and a small diameter section. A stepped structure is formed at the transition between the large diameter section and the small diameter section. The snap-fit ​​mounting groove 11111 is partially located on the large diameter section and partially located on the small diameter section. The snap-fit ​​structure 1140 is inserted into the snap-fit ​​mounting groove 11111 along the direction from the outer periphery to the center of the main body 111. The operating part 1141 extends out of the large diameter section for a person's finger to press. The hook part 1142 can extend and retract into the small diameter section.

[0081] A connecting hole 11112 is provided on the large-diameter section of the main body 111, and an elongated hole 1143 is provided on the snap-fit ​​structure 1140. The snap-fit ​​structure 1140 is movably mounted on the main body 111 through a third screw 1150 that passes through the elongated hole 1143 and is threadedly connected to the connecting hole 11112. In this structure, the third screw 1150 is in an open environment and can be directly screwed. After the snap-fit ​​structure 1140 is inserted into the snap-fit ​​mounting groove 11111, installing the third screw 1150 in place will prevent the snap-fit ​​structure 1140 from coming out of the snap-fit ​​mounting groove 11111. When disassembling the snap-fit ​​structure 1140, the third screw 1150 can be removed directly, and the snap-fit ​​structure 1140 can be pulled out of the snap-fit ​​mounting groove 11111.

[0082] To ensure the smooth movement of the snap-fit ​​structure 1140, a guide structure is also provided between the snap-fit ​​structure 1140 and the main body 111. In some embodiments, a guide post 11113 is provided in the small diameter section of the snap-fit ​​mounting groove 11111, and a guide hole 1144 is provided on the snap-fit ​​structure 1140. The guide post 11113 and the guide hole 1144 are inserted into each other to guide the movement of the snap-fit ​​structure 1140.

[0083] To ensure the latching structure 1140 remains in the locked position, please refer to... Figure 10 The filter holder 11 also includes an elastic reset member 1160 disposed between the snap-fit ​​structure 1140 and the main body 111. In some embodiments, the elastic reset member 1160 is a compression spring. When the snap-fit ​​structure 1140 is in the locked position, the compression spring is compressed and stores energy. After the force applied to the operating part 1141 is released, the compression spring releases energy to drive the snap-fit ​​structure 1140 from the unlocked position to the locked position and reset it.

[0084] To ensure a reliable connection, in some embodiments, two snap-fit ​​structures 1140 are provided at circumferential intervals around the main body 111. By providing the connection structure, the filter in this application can be connected to other filters, or connected to the lens of a photographic device via an adapter structure.

[0085] The filter components also include... Figure 11 The adapter ring 13 shown constitutes the external structure, having a frame connection structure 131 and a lens connection structure 132. For example... Figure 12 As shown, the lens frame connection structure 131 includes a second magnet 1311 disposed on the adapter ring 13. The filter frame 11 and the adapter ring 13 can be magnetically connected via the first magnet 1120 and the second magnet 1311. The lens frame connection structure 131 also includes a hook groove 1312 disposed on the adapter ring 13. The hook groove 1312 is an annular groove, and the hook portion 1142 on the filter frame 11 can hook and engage with the hook groove 1312, forming a hook-and-hook connection structure between the filter frame 11 and the adapter ring 13. The lens connection structure 132 is used to connect with the lens of a photographic device. The lens connection structure 132 can be externally threaded, allowing the adapter ring 13 to be threadedly connected to the lens.

[0086] In use, the cover 112 can be removed from the main body 111, the required lens 12 can be inserted into the corresponding mounting slot 113, and then the cover 112 can be reinstalled to assemble the filter. The adapter ring 13 is mounted on the lens via the lens connection structure 132. The filter is connected to the adapter ring 13 via the connection structure on the filter holder 11 and the holder connection structure 131 on the adapter ring 13, thus achieving the installation of the filter at the target mounting position.

[0087] This application also provides a filter holder, the structure of which is the same as that of the filter holder 11 of the filter assembly in the above embodiments, and will not be described again here.

[0088] The above examples illustrate this application only to aid understanding and are not intended to limit its scope. Those skilled in the art to which this application pertains can make various simple deductions, modifications, or substitutions based on the ideas presented.

Claims

1. A filter holder for mounting lenses, characterized in that, The filter frame includes: The frame has a first receiving slot for receiving a lens, and the frame has an opening in its circumferential direction, through which the lens can be inserted into the first receiving slot. A cover is provided at the opening, and the cover is provided with a second receiving groove corresponding to the first receiving groove. The first receiving groove and the second receiving groove form a mounting groove for installing the lens. The cover is connected to the frame via a detachable connection structure, allowing it to be removed from the frame when the lens is installed into the mounting slot.

2. The filter frame as described in claim 1, characterized in that, The cover includes two ends corresponding to the two ends of the frame at the opening, and a detachable connection structure is provided between one end of the opening and one of the ends.

3. The filter frame as described in claim 2, characterized in that, The detachable connection structure is a snap-fit ​​assembly, which includes a fixed hook and a movable hook. The movable hook includes an unlocking part and a hook that are connected to each other. The unlocking part is rotatably mounted on one of the mirror frame and the cover via a pivot. The fixed hook is disposed on the other of the mirror frame and the cover. The fixed hook has a hook groove. In the locked state, the hook is held in the hook groove. In the unlocked state, the hook is disengaged from the hook groove.

4. The filter frame as described in claim 1, characterized in that, The frame has at least two first receiving slots, and the cover has at least two second receiving slots. The positions of the second receiving slots correspond to the positions of the first receiving slots. A corresponding first receiving slot and a second receiving slot form a mounting slot. The mounting slots are arranged at intervals along a first direction, so that the lenses installed in each mounting slot are stacked.

5. The filter frame as described in claim 4, characterized in that, The mounting slot is used to mount the circular lens. The filter frame includes an adjusting roller corresponding to each mounting slot. The adjusting roller is rotatably mounted on the lens frame or the cover. A portion of each adjusting roller extends into the corresponding mounting slot to contact the outer peripheral surface of the lens, and another portion protrudes from the lens frame or the cover, so that the operator can move the adjusting roller to drive the lens to rotate.

6. The filter frame as described in claim 5, characterized in that, The filter frame also includes a plurality of first posts respectively provided for each of the mounting slots. The first posts are provided on the frame and the plurality of first posts corresponding to each mounting slot are arranged at intervals along the circumference of the frame. The cylindrical surface of each first post is at least partially located in the corresponding mounting slot, so that the plurality of first posts provided for each mounting slot can cooperate with the corresponding lens.

7. The filter frame as described in claim 6, characterized in that, The filter frame also includes a second post corresponding to each of the mounting slots. The second post is disposed on the cover, and at least part of the surface of the second post is located in the corresponding mounting slot. In two adjacent mounting slots, along the first direction, the adjusting roller corresponding to one of the mounting slots is located on one side of the second post corresponding to the other mounting slot. The cover includes a base and a pressure plate connected to the base. The adjusting roller and the second post, which are correspondingly disposed along the first direction, are disposed between the base and the pressure plate.

8. The filter frame as described in claim 1, characterized in that, The filter frame also includes a frame-shaped base. Along the width direction of the groove corresponding to the thickness direction of the first receiving groove, the frame-shaped base is connected to at least one side of the frame. The frame-shaped base has a positioning surface located at the opening. Along the width direction of the groove corresponding to the thickness direction of the first receiving groove, the positioning surface positions the cover so that the second receiving groove can be aligned with the corresponding first receiving groove.

9. The filter frame as described in any one of claims 1-8, characterized in that, The filter holder also includes a magnet, enabling the filter holder to be magnetically connected to an external structure for installation at a target position. Along the width direction of the first receiving groove corresponding to the thickness direction of the lens, the magnet is located on one side of the first receiving groove; and / or, The filter frame includes a hook, which allows the filter frame to be hooked and connected to an external structure for installation at a target position. The hook is located on one side of the first receiving groove along the groove width direction corresponding to the thickness direction of the lens.

10. A filter assembly, characterized in that, include: Filter frames as described in any one of claims 1-9; Lens, mounted on the filter frame; An adapter ring having a frame connection structure and a lens connection structure, wherein the frame connection structure is used to connect the filter frame and the lens connection structure is used to connect to the lens of a photographic device.

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