Filter assembly

Abstract

The utility model discloses a filter assembly, which relates to the technical field of photographic equipment and mainly comprises a filter, a filter support and a CPL polarizer, the filter is in magnetic connection with the filter support through a first magnetic mechanism, and the CPL polarizer is in magnetic connection with the filter support through a second magnetic mechanism. The filter support is further provided with a rotating mechanism, and the rotating mechanism can drive the CPL polarizer to rotate. According to the utility model, the filter can be conveniently installed and adjusted, and dark corners and light leakage during photographing are avoided.

Description

TECHNICAL FIELD

[0001] The utility model relates to photographic equipment technical field, in particular to a filter assembly. BACKGROUND

[0002] At present, when using CPL polarizer, the angle of CPL polarizer needs to be adjusted at any time, so CPL polarizer needs to be twisted frequently, in this process, in order to cooperate with the use of different filters and obtain better photographic effect, filter support needs to be used.

[0003] The existing filter support is usually provided with a plurality of insertion slots for mounting filters, which are used for inserting and fixing the filters, but when inserting the filters into the insertion slots or adjusting the filters relative to the insertion slots, it is easy to appear jam, which is very inconvenient, and the setting of the plurality of insertion slots leads to that the whole filter support is relatively thick, so that after the filters are inserted into the insertion slots, the dark corner appears, which affects the shooting effect.

[0004] Therefore, it is urgent to provide a filter assembly to solve the above problems existing in the prior art. SUMMARY

[0005] The utility model aims at providing a filter assembly to solve the problems existing in the prior art, which can facilitate the installation and adjustment of filters and avoid the generation of dark corner and light leakage during shooting.

[0006] To achieve the above object, the utility model provides the following scheme:

[0007] The utility model provides a filter assembly, including filter, filter support and CPL polarizer, the filter is connected with filter support through first magnetic attraction mechanism and is connected with filter support through second magnetic attraction mechanism, and rotation mechanism is still provided on filter support, and rotation mechanism can drive CPL polarizer rotates.

[0008] Preferably, the filter support includes a support body and a cover plate, the cover plate is buckled on the support body, the filter is magnetically connected with the cover plate, and the CPL polarizer is magnetically connected with the support body.

[0009] Preferably, it further includes a filter frame, and the filter is arranged on the filter frame, wherein the filter frame surrounds the filter.

[0010] Preferably, the first magnetic attraction mechanism includes a first magnet and a first iron block, the first magnet is arranged in the filter frame, and the first iron block is arranged on the cover plate and fixedly connected with the support body.

[0011] Preferably, the filter frame comprises a top frame, a bottom frame, a left frame and a right frame, the top frame, the bottom frame, the left frame and the right frame form a rectangular structure and surround the filter arrangement; a plurality of first magnets are sequentially arranged on the left frame and the right frame along the length direction thereof.

[0012] The first iron block is provided with two first iron blocks respectively located on the left and right sides of the cover plate.

[0013] Preferably, the filter frame is integrally arranged, a plurality of mounting grooves are arranged on the surfaces of the left frame and the right frame, the mounting grooves are used for fixing the first magnets, and a buckle plate is further buckled on the left frame and the right frame, the buckle plate can cover the first magnets.

[0014] Alternatively, the top frame, the bottom frame, the left frame and the right frame are separately arranged, and a plurality of first magnets are embedded in the left frame and the right frame along the length direction thereof.

[0015] Preferably, the CPL polarizer is fixed on the magnetic attraction adapter ring, and the magnetic attraction adapter ring is rotationally arranged on the support body.

[0016] Preferably, the second magnetic attraction mechanism comprises a second magnet and a second iron block, and the support adapter ring is further arranged on the support body, the second iron block is arranged on the support adapter ring, and the second magnet is embedded on the magnetic attraction adapter ring.

[0017] Preferably, the rotating mechanism comprises a gear assembly, and the outer edge of the magnetic attraction adapter ring is provided with a gear ring, and the gear assembly is engaged with the gear ring.

[0018] The gear assembly comprises a first gear and a second gear engaged with each other, the first gear and the second gear are rotationally arranged on the support body, the second gear is arranged close to the magnetic attraction adapter ring and is engaged with the gear ring, and the first gear protrudes from the support body.

[0019] Preferably, the limiting assembly is further arranged for limiting the support adapter ring.

[0020] The utility model discloses the following technical effects are obtained relative to prior art:

[0021] The utility model discloses a filter through first magnetic attraction mechanism and filter support magnetic attraction connection, realized the quick installation and disassembly between filter and filter support, solved the traditional filter support filter installation's jam phenomenon, cancelled the traditional filter support's slot, also made the whole filter support's thickness greatly reduce, and filter installation will not appear dark corner, improved the shooting effect. BRIEF DESCRIPTION OF DRAWINGS

[0022] In order to more clearly illustrate the technical scheme in the embodiment of the utility model or prior art, the following will briefly introduce the drawing needed to be used in the embodiment, obviously, the drawing in the following description only is some embodiments of the utility model, for ordinary skilled person in the art, under the premise of not paying creative labor, can also obtain other drawings according to these drawings.

[0023] Figure 1 It is the explosion schematic view of filter assembly in the embodiment of the utility model;

[0024] Figure 2 It is Figure 1 The partial enlarged schematic view in the embodiment of the utility model;

[0025] Figure 3 It is the structural schematic view of another filter frame in the embodiment of the utility model.

[0026] In the drawing: 1-filter, 2-filter frame, 201-top frame, 202-bottom frame, 203-left frame, 204-right frame, 3-buckle plate, 4-first magnet, 5-shading cotton, 6-cover plate, 7-first iron block, 8-tooth ring, 9-magnetic attraction adapter ring, 10-CPL polarizer, 11-support main body, 12-second iron block, 13-support adapter ring, 14-first gear, 15-second gear, 16-pull rod, 17-spring, 18-limiting block, 19-limiting block cover plate. DETAILED DESCRIPTION

[0027] The technical scheme in the embodiment of the utility model will be clearly and completely described in the following by combining with the drawings in the embodiment of the utility model, obviously, the described embodiment only is a part of the embodiment of the utility model, not all the embodiment. Based on the embodiment in the utility model, all other embodiments obtained by ordinary skilled person in the art without making creative labor belong to the scope of protection of the utility model.

[0028] The purpose of this invention is to provide a filter assembly to solve the problems existing in the prior art, which can facilitate the installation and adjustment of the filter and avoid vignetting and light leakage when taking pictures.

[0029] To make the above-mentioned objectives, features and advantages of this utility model more apparent and understandable, the utility model will be further described in detail below with reference to the accompanying drawings and specific embodiments.

[0030] Example 1

[0031] like Figures 1-3 As shown, this embodiment provides a filter assembly, mainly including a filter 1, a filter holder, and a CPL polarizing filter 10. The filter 1 is magnetically connected to the filter holder via a first magnetic attraction mechanism, and the CPL polarizing filter 10 is magnetically connected to the filter holder via a second magnetic attraction mechanism. The filter holder is also provided with a rotating mechanism, which can drive the CPL polarizing filter 10 to rotate. There may be one filter 1 or multiple filters arranged side by side.

[0032] In this embodiment, filter 1 is magnetically connected to the filter holder via a first magnetic attraction mechanism, enabling quick installation and removal of filter 1 and filter holder, thus solving the jamming problem that occurs when installing filter 1 using traditional filter holders. The elimination of the slot in traditional filter holders also significantly reduces the overall thickness of the filter holder, preventing vignetting after filter 1 installation and improving shooting results. Furthermore, during use, filter 1 is less prone to slipping due to the quality of the slot in traditional filter holders or the weight of filter 1 itself, ensuring a stable and reliable installation. Simultaneously, the up-and-down sliding and left-and-right rotation of filter 1 are very flexible and convenient. Moreover, due to the magnetic attraction between filter 1 and filter holder, when multiple filters 1 are used, there will be no light leakage between adjacent filters 1 due to gaps, thus not affecting the shooting effect.

[0033] In this embodiment, the filter holder mainly includes a holder body 11 and a cover plate 6. The cover plate 6 is fastened to the holder body 11, the filter 1 is magnetically connected to the cover plate 6, and the CPL polarizing filter 10 is magnetically connected to the holder body 11.

[0034] In this embodiment, a filter frame 2 is also included, and the filter 1 is disposed on the filter frame 2, wherein the filter frame 2 surrounds the filter 1. Because of the filter frame 2, even if the filter 1 slips due to an accident, the filter 1 will not easily break due to the cushioning protection of the filter frame 2. At the same time, the filter frame 2 can further ensure that there are no gaps between the filters 1 and prevent light leakage.

[0035] In this embodiment, the first magnetic attraction mechanism includes a first magnet 4 and a first iron block 7. The first magnet 4 is disposed inside the filter frame 2, and the first iron block 7 is disposed on the cover plate 6 and fixedly connected to the support body 11. The cover plate 6 and the first iron block 7 can be fixedly connected to the support body 11 by screws, which facilitates disassembly and assembly. In this embodiment, the first iron block 7 is disposed on the cover plate 6, which prevents the filter 1 from easily getting stuck or shifting due to the repulsion of the same pole of the magnet.

[0036] In this embodiment, the filter 1 is typically a rectangular filter, while the filter frame 2 mainly includes a top frame 201, a bottom frame 202, a left frame 203, and a right frame 204. The top frame 201, the bottom frame 202, the left frame 203, and the right frame 204 form a rectangular structure and surround the filter 1. Multiple first magnets 4 are sequentially arranged along the length of both the left frame 203 and the right frame 204.

[0037] There are two first iron blocks 7, which are located on the left and right sides of the cover plate 6, respectively. The left and right sides refer to the left and right sides when the operator is facing the cover plate 6.

[0038] In this embodiment, light-blocking cotton 5 is also provided on the upper and lower sides of the cover plate 6 for light blocking.

[0039] In this embodiment, the filter frame 2 can be integrally formed. Multiple mounting slots are provided on the surfaces of the left frame 203 and the right frame 204. The mounting slots are used to fix the first magnet 4. The left frame 203 and the right frame 204 are also fastened with a buckle plate 3, which can cover the first magnet 4.

[0040] Or, such as Figure 2 As shown, the top frame 201, the bottom frame 202, the left frame 203, and the right frame 204 can be separately configured. The two ends of the top frame 201 are respectively engaged with the top of the left frame 203 and the right frame 204, and the two ends of the bottom frame 202 are respectively engaged with the bottom of the left frame 203 and the right frame 204. A plurality of first magnets 4 are embedded in the left frame 203 and the right frame 204 along their length direction.

[0041] In this embodiment, a magnetic adapter ring 9 is also included. The CPL polarizing mirror 10 is fixed on the magnetic adapter ring 9, and the magnetic adapter ring 9 is rotatably mounted on the support body 11.

[0042] In the embodiment, the second magnetic attraction mechanism comprises a second magnet and a second iron block 12, and a bracket adapter ring 13 is further arranged on the bracket body 11, the second iron block 12 is arranged on the bracket adapter ring 13, and the second magnet is embedded on the magnetic attraction adapter ring 9; wherein the bracket adapter ring 13 is rotatably connected with the bracket body 11, an annular rotating groove is arranged on the inner side of the bracket body 11 to facilitate the rotation of the magnetic attraction adapter ring 9 and the bracket adapter ring 13, an annular groove is arranged on the side of the bracket adapter ring 13 close to the magnetic attraction adapter ring 9, the second iron block 12 is an annular iron block and is arranged in the annular groove, the second magnet is an arc-shaped magnet and is uniformly distributed along the circumference of the magnetic attraction adapter ring 9, the positions of the second magnet and the annular iron block correspond to each other, and the magnetic attraction adapter ring 9 and the bracket adapter ring 13 are fixed by the second magnet and the second iron block 12.

[0043] In the embodiment, the rotating mechanism comprises a gear assembly, and a gear ring 8 is arranged on the outer edge of the magnetic attraction adapter ring 9, and the gear assembly is engaged with the gear ring 8; specifically, the gear assembly mainly comprises a first gear 14 and a second gear 15 engaged with each other, the first gear 14 and the second gear 15 are rotatably arranged on the bracket body 11 through rotating shafts, the second gear 15 is arranged close to the magnetic attraction adapter ring 9 and is engaged with the gear ring 8, the first gear 14 protrudes from the bracket body 11, and the magnetic attraction adapter ring 9 can be rotated by the second gear 15 by pulling the first gear 14, so as to realize the angle adjustment of the CPL polarizer 10.

[0044] In the embodiment, a limiting assembly is further included for limiting the support adapter ring 13, specifically, the outer ring of the support adapter ring 13 is provided with an annular limiting groove, the limiting assembly mainly includes a pull rod 16, a spring 17, a limiting block 18 and a limiting block cover plate 19, the limiting block cover plate 19 is fixed on the support body 11 by bolts and a sliding groove is formed between the limiting block cover plate 19 and the support body 11, the limiting block 18 is slidingly arranged in the sliding groove, and the head of the limiting block 18 (one end close to the support adapter ring 13) can be clamped into the annular limiting groove of the outer ring of the support adapter ring 13 to limit the support adapter ring 13 and prevent the support adapter ring 13 from loosening; one end of the pull rod 16 is threadedly connected with the tail of the limiting block 18 (one end away from the support adapter ring 13), and the other end of the pull rod 16 extends out of the support body 11, the limiting block 18 can be pulled outwards by the pull rod 16, so that the limiting block 18 is separated from the annular limiting groove of the outer ring of the support adapter ring 13, and the support adapter ring 13 is convenient to disassemble and assemble; the spring 17 is arranged between the tail of the limiting block 18 and the side wall of the sliding groove, when the limiting block 18 is pulled outwards by the pull rod 16, the spring 17 is compressed, and when the external force is removed, the spring 17 rebounds to push the limiting block 18 to reset and limit the support adapter ring 13; wherein the spring 17 can be provided with two, and the two springs 17 are respectively located on the two sides of the pull rod 16.

[0045] The principle and implementation mode of the specific examples are described in the utility model, and the above embodiment is only used for helping to understand the method and core idea of the utility model; meanwhile, for the general technical personnel in the field, the specific implementation mode and application range will be changed according to the idea of the utility model. In conclusion, the content of the specification should not be understood as the limitation of the utility model.

Claims

1. A filter assembly, characterized by: The filter is connected to the filter support through a first magnetic attraction mechanism, the CPL polarizer is connected to the filter support through a second magnetic attraction mechanism, and a rotating mechanism is further arranged on the filter support, which can drive the CPL polarizer to rotate.

2. The filter assembly of claim 1, wherein: The filter support comprises a support body and a cover plate, the cover plate is buckled on the support body, the filter is connected to the cover plate through magnetic attraction, and the CPL polarizer is connected to the support body through magnetic attraction.

3. The filter assembly of claim 2, wherein: The filter is arranged on a filter frame, wherein the filter frame surrounds the filter.

4. The filter assembly of claim 3, wherein: The first magnetic attraction mechanism comprises a first magnet and a first iron block, the first magnet is arranged in the filter frame, and the first iron block is arranged on the cover plate and fixedly connected to the support body.

5. The filter assembly of claim 4, wherein: The filter frame comprises a top frame, a bottom frame, a left frame and a right frame, the top frame, the bottom frame, the left frame and the right frame form a rectangular structure and surround the filter; a plurality of first magnets are arranged on the left frame and the right frame in sequence along the length direction thereof; The first iron block is provided with two first iron blocks, and the two first iron blocks are respectively located on the left and right sides of the cover plate.

6. The filter assembly of claim 5, wherein: The filter frame is integrally arranged, a plurality of mounting grooves are arranged on the surfaces of the left frame and the right frame, the mounting grooves are used for fixing the first magnets, and a buckle plate is further buckled on the left frame and the right frame, and the buckle plate can cover the first magnets. Alternatively, the top frame, the bottom frame, the left frame and the right frame are separately arranged, and a plurality of first magnets are embedded in the left frame and the right frame in sequence along the length direction thereof.

7. The filter assembly of claim 2, wherein: A magnetic attraction adapter ring is further arranged, the CPL polarizer is fixed on the magnetic attraction adapter ring, and the magnetic attraction adapter ring is rotatably arranged on the support body.

8. The filter assembly of claim 7, wherein: The second magnetic attraction mechanism comprises a second magnet and a second iron block, a support adapter ring is further arranged on the support body, the second iron block is arranged on the support adapter ring, and the second magnet is embedded in the magnetic attraction adapter ring.

9. The filter assembly of claim 7 or 8, wherein: The rotating mechanism comprises a gear assembly, and the outer edge of the magnetic attraction adapter ring is provided with a gear ring. The gear assembly comprises a first gear and a second gear in engagement, the first gear and the second gear are rotatably arranged on the support body, the second gear is arranged close to the magnetic attraction adapter ring and in engagement with the gear ring, and the first gear protrudes from the support body.

10. The filter assembly of claim 8, wherein: A limiting assembly is further arranged, and the limiting assembly is used for limiting the support adapter ring.

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