CN212623526U - Magnetically-adjustable dimming mirror assembly - Google Patents

Abstract

The utility model discloses a subtract light mirror assembly with adjustable magnetism is inhaled. The dimming mirror assembly comprises a first rotation adjusting module and a second rotation adjusting module; the first rotary adjusting module is provided with a first dimming lens, and the second rotary adjusting module is provided with a second dimming lens; first rotation regulation module and second rotation regulation module assemble with the magnetism effect of inhaling, and whole dimming mirror subassembly assembly can carry out rotation regulation to two sets of dimming lenses after on the camera lens to adjust the dimming value, with the dimming that reaches the difference and disappear reflection of light effect, convenient to use, high-efficient, and the cost burden is low. Can directly set up the first screw thread portion with the camera lens spiro union on first rotation regulation module, perhaps can adopt magnetism to inhale and be equipped with fixed switching module and carry out the assembly use of whole dimming mirror subassembly in front of the camera lens to can eliminate the regulation of polarization reflection of light. Moreover, an adjusting positioning piece and a ball head groove can be arranged to accurately control the dimming value.

Description

Magnetically-adjustable dimming mirror assembly

Technical Field

The utility model relates to a photographic goods technical field, concretely relates to subtract light mirror assembly with adjustable magnetism is inhaled.

Background

For cameras and monitoring lenses, in order to capture different image effects, the light entering the lens is usually adjusted by using different filter lenses to capture a picture with a desired effect. For example, when a camera shoots a dynamic subject such as a waterfall, a river, etc., it is desirable to have a dynamic effect in the picture to express the actual situation at that time, and at that time, a slow shutter is required, but an unavoidable over-exposure is generated, so a light reduction mirror is adopted to reduce the light entering the photographing lens.

The lens is purchased and carried separately as an accessory used in the photographing process, and has different specifications. Under the shooting environment of different light intensity, can install the dimming mirror of different specifications additional respectively on the camera lens. But this not only increases the cost burden on the consumer, but also is inconvenient to carry. In addition, when the camera is used, the dimming mirror needs to be continuously replaced according to shooting environments with different light intensities, so that the camera is not only inconvenient to use, but also can cause excessive abrasion to a camera lens and the dimming mirror, and the service life of high-precision devices such as the camera lens and the dimming mirror can be greatly shortened.

SUMMERY OF THE UTILITY MODEL

To the dimming mirror among the prior art have use cost height, use inconvenient, all cause the defect or not enough of wearing and tearing to camera lens and dimming mirror in the use moreover easily, the utility model provides an adjustable dimming mirror subassembly is inhaled to magnetism. This dimming mirror subassembly carries out the assembly between two sets of dimming lenses with the magnetic attraction effect, and whole dimming mirror subassembly assembly can be manual carry out rotary adjustment to two sets of dimming lenses after on the camera lens to adjust the dimming value, in order to reach different dimming and the reflection effect that disappears, convenient to use, high efficiency need not the dimming mirror of the different specifications of dismouting repeatedly, and with low costs burden.

The purpose of the utility model is realized through the following technical scheme.

A magnetically adjustable dimming mirror assembly comprises a first rotary adjusting module and a second rotary adjusting module; the first rotary adjusting module is provided with a first dimming lens, and the second rotary adjusting module is provided with a second dimming lens;

a first magnet is arranged on the first rotary adjusting module, and a second magnet corresponding to the first magnet is arranged on the second rotary adjusting module; the second rotation adjusting module is arranged at the front end of the first rotation adjusting module through the magnetic attraction effect, and the second rotation adjusting module can freely rotate relative to the first rotation adjusting module.

In a preferred embodiment, the first rotation adjusting module comprises a first rotating ring, and the first magnet and the first dimming lens are both arranged on the first rotating ring;

the second rotation adjusting module comprises a second rotating ring, and the second magnet and the second dimming lens are arranged on the second rotating ring; the second rotating ring is arranged at the front end of the first rotating ring in a freely rotating mode, and the second magnet corresponds to the first magnet and has an attraction effect.

In a further preferred embodiment, the first magnet and the first dimming mirror are disposed on the first rotating ring by a first pressing ring.

In a further preferred embodiment, the second magnet and the second dimming mirror are disposed on the second rotating ring by pressing a second pressing ring.

In a more preferred embodiment, the front end of the first rotating ring has a rotating inner curved surface with a concave-convex cross section, and the rear end of the second rotating ring has a rotating outer curved surface matched with the rotating inner curved surface;

the rear end of the second rotating ring is connected to the front end of the first rotating ring, and the rotating outer curved surface and the rotating inner curved surface are matched to realize relative free rotation.

In a further preferred embodiment, the first rotary ring has a first rotation adjustment thread on its outer circumference.

In a further preferred embodiment, the second rotary ring has a second rotation adjustment thread on its outer circumference.

In a preferred embodiment, the first rotation adjusting module is provided with a first threaded part which can be screwed with the lens. When the lens is used, the integral dimming mirror assembly can be assembled in front of the lens through the first thread part and the lens in a threaded connection mode.

In a preferred embodiment, the device further comprises a fixed switching module; the fixed switching module is provided with a fixed magnet; the first magnet corresponds to the fixed magnet and has an adsorption effect;

the first rotary adjusting module can be freely and rotatably arranged at the front end of the fixed switching module under the adsorption action of the first magnet and the fixed magnet; and the fixed switching module is provided with a fixed thread part which can be in threaded connection with the lens.

When the lens is used, the fixing thread part on the fixed switching module can be in threaded connection with the lens, so that the whole dimming mirror assembly is assembled in front of the lens. Moreover, the first rotary adjusting module can be stably assembled at the front end of the fixed switching module and can freely rotate relative to the fixed switching module under the adsorption action of the first magnet and the fixed magnet; the second rotary adjusting module and the first rotary adjusting module can integrally rotate along with the first rotary adjusting module to adjust the polarized reflection elimination.

In a further preferred embodiment, the fixed adapter module comprises a fixed ring, and the fixed magnet is arranged on the fixed ring in a pressing manner through a fixed pressing ring; the first rotary adjusting module can be freely and rotatably arranged at the front end of the fixing ring, and the rear end of the fixing ring is provided with a fixing thread part capable of being in threaded connection with a lens.

A magnetically adjustable dimming mirror assembly is based on any one of the above magnetically adjustable dimming mirror assemblies; the second rotary adjusting module is also provided with an adjusting positioning piece; the adjusting positioning piece comprises a spring and a top ball; one end of the spring is fixedly connected to the second rotary adjusting module, and the other end of the spring faces the first rotary adjusting module and is connected with the ejector bead; the top ball is elastically propped against the first rotary adjusting module by the spring;

and a plurality of ball head grooves capable of accommodating the top balls to slide in are formed in the first rotation adjusting module.

In a more preferred embodiment, a plurality of the ball head grooves are distributed along the rotating circumferential direction at fixed points.

In a more preferable embodiment, an arc-shaped limit deep groove is formed in the first rotation adjusting module, and the top bead is limited in the arc-shaped limit deep groove to slide; and a plurality of ball head grooves are arranged in the arc-shaped limit deep groove.

Compared with the prior art, the utility model has the advantages of as follows and beneficial effect:

the utility model discloses an among the dimming mirror subassembly, the assembly is inhaled with first magnet and the second magnet that corresponds each other to first rotation regulation module and second rotation regulation module magnetism, can carry out relative rotation regulation each other. After this dimming mirror subassembly assembly is on the camera lens, can carry out the relative rotation regulation to first rotation regulation module and second rotation regulation module, with the relative angle between two sets of dimming lens of regulation loading on first rotation regulation module and second rotation regulation module, thereby adjust the dimming value, in order to reach different dimming effect, high durability and convenient use, high efficiency, and need not the shopping, carry the independent dimming mirror of multiple different specifications, and the cost burden is low, more need not to relapse the dimming mirror of the different specifications of dismouting, effectively avoid the excessive wearing and tearing that the dismouting in-process led to the fact lens and dimming mirror repeatedly.

Can directly set up the first screw thread portion with the camera lens spiro union on first rotation regulation module, make whole dimming mirror subassembly accessible first screw thread portion and camera lens spiro union when using, directly use whole dimming mirror subassembly assembly before the camera lens. Or, can adopt fixed switching module to carry out whole dimming mirror subassembly and use in the assembly before the camera lens, wherein, the whole of first rotation regulation module and second rotation regulation module adopts the mode of magnetism to insert the assembly on fixed switching module equally, and not only easy dismounting makes the whole relatively fixed switching module of first rotation regulation module and second rotation regulation module after the assembly carry out the free rotation moreover to can eliminate the regulation of polarization reflection.

In addition, through setting up regulation setting element and bulb recess, can realize the relative definite value angular rotation of first rotation regulation module and second rotation regulation module to realize the definite value regulation of dimming value, accurate control dimming value.

Drawings

Fig. 1 is a schematic structural view of a magnetically adjustable dimming mirror assembly in embodiment 1;

FIG. 2 is a schematic sectional view taken along A-A in FIG. 1;

FIG. 3 is an enlarged schematic view of a portion a of FIG. 2;

fig. 4 is a schematic view of a sub-assembly structure of the magnetically adjustable dimming mirror assembly in embodiment 1;

fig. 5 is a schematic view of an overall assembly structure of the magnetically adjustable dimming mirror assembly in embodiment 1;

fig. 6 is a schematic structural view of the magnetically adjustable dimming mirror assembly in embodiment 2;

FIG. 7 is a schematic cross-sectional view taken along line B-B of FIG. 6;

FIG. 8 is an enlarged view of portion b of FIG. 7;

fig. 9 is a schematic view of a sub-assembly structure of the magnetically adjustable dimming mirror assembly according to embodiment 2;

fig. 10 is a schematic view of an overall assembly structure of the magnetically adjustable dimming mirror assembly according to embodiment 2;

fig. 11 is a schematic structural view of the magnetically adjustable dimming mirror assembly according to embodiment 3;

fig. 12 is an assembly structure diagram of the adjusting positioning member between the first rotary adjusting module and the second rotary adjusting module in embodiment 3;

FIG. 13 is a schematic view of an adjusting positioning member;

fig. 14 is a schematic structural view of a first rotating ring in the magnetically adjustable dimming mirror assembly according to embodiment 3;

fig. 15 is a schematic cross-sectional view of a magnetically adjustable dimming mirror assembly according to embodiment 3 without a fixed adapter module;

FIG. 16 is an enlarged view of portion c of FIG. 15;

fig. 17 is a schematic cross-sectional view of a magnetically adjustable dimming mirror assembly according to embodiment 3, wherein the magnetically adjustable dimming mirror assembly is provided with a fixed adapter module;

FIG. 18 is an enlarged view of portion d of FIG. 17;

fig. 19 is a schematic structural view of the magnetically adjustable beam splitter assembly of the present invention assembled at the front end of the camera lens;

fig. 20a is an assembly structure diagram of the magnetically adjustable dimming mirror assembly of embodiment 1 assembled at the front end of the camera lens;

fig. 20b is an assembly structure diagram of the magnetically adjustable dimming mirror assembly of embodiment 2 assembled at the front end of the camera lens;

fig. 21 is an assembly structure diagram of the magnetically adjustable dimming mirror assembly of embodiment 2 assembled with other filters at the front end of the camera lens;

the attached drawings are marked as follows: 1-a first rotation adjustment module, 101-a first dimming lens, 102-a first rotation ring, 1020-a first rotation adjustment screw, 1021-a rotation inner curved surface, 1022-an arc-shaped limit deep groove, 1023-a ball head groove, 103-a first magnet, 104-a first press ring, 1040-a first screw portion, 2-a second rotation adjustment module, 201-a second dimming lens, 202-a second rotation ring, 2020-a second rotation adjustment screw, 2021-a rotation outer curved surface, 203-a second magnet, 204-a second press ring, 3-a fixed adapter module, 301-a fixed magnet, 302-a fixed ring, 3020-a fixed screw portion, 303-a fixed press ring, 4-an adjustment positioning member, 401-a spring, 402-a top ball, 403-a housing, 100-camera, 200-lens, 300-dimming mirror assembly, 300 a-dimming mirror assembly I, 300 b-dimming mirror assembly II, 400-superposition filter.

Detailed Description

The technical solution of the present invention will be described in further detail with reference to the following specific embodiments and accompanying drawings, but the scope of protection and the implementation of the present invention are not limited thereto. In the description of the specific embodiments, it should be noted that the terms "front" and "back" and the like refer to the orientation or position relationship shown in the drawings or the orientation or position relationship that the utility model is usually placed when in use, and the terms "i" and "ii" and the like are only used for distinguishing and describing, and are only used for convenience of describing and simplifying the utility model, but do not refer to or imply that the structure or element that is referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore, cannot be understood as limiting the utility model, and are not meant to indicate or imply relative importance. In addition, as used herein, the term "and/or" includes any and all combinations of one or more of the associated listed items.

Example 1

The magnetically adjustable dimming mirror assembly of the present embodiment includes a first rotation adjusting module 1 and a second rotation adjusting module 2.

Referring to fig. 1 to 5, in the present embodiment, a first dimming lens 101 is disposed on the first rotation adjustment module 1, and a second dimming lens 201 is disposed on the second rotation adjustment module 2. The first light reduction lens 101 and the second light reduction lens 201 concentrically correspond to each other to form a light reduction lens group for light reduction, and a light reduction value is correspondingly arranged at a corresponding angle, when a relative rotation angle between the first light reduction lens 101 and the second light reduction lens 201 changes, the light reduction value generated by superposition can be adjusted.

The first rotation adjustment module 1 is provided with a first magnet 103, and the second rotation adjustment module 2 is provided with a second magnet 203 corresponding to the first magnet 103. Optionally, the first magnet 103 and the second magnet 203 are both annular magnetic strips. Through the mutual magnetic attraction effect of the first magnet 103 and the second magnet 203, the second rotation adjusting module 2 is correspondingly arranged at the front end of the first rotation adjusting module 1, and the second rotation adjusting module 2 can freely rotate relative to the first rotation adjusting module 1. The magnetic action of the first magnet 103 and the second magnet 203 enables the first rotation adjustment module 1 and the second rotation adjustment module 2 to be stably assembled, and a new stable state can be maintained after the relative rotation is performed and a new relative angle position is reached.

After the integral dimming mirror assembly composed of the first rotary adjusting module 1 and the second rotary adjusting module 2 is assembled at the front end of the lens, the first rotary adjusting module 1 is relatively fixed with the lens. At this moment, the second rotation adjusting module 2 can be rotated manually, so that the second dimming lens 102 on the second rotation adjusting module 2 rotates synchronously, and further the relative angle between the second dimming lens 102 and the first dimming lens 101 is changed, so that the superimposed dimming value of the second dimming lens 102 and the first dimming lens 101 can be adjusted to achieve different dimming effects, the dimming value is convenient and efficient to adjust, and the dimming lenses of different specifications do not need to be assembled repeatedly. After the relative rotation of the second dimming lens 102 and the first dimming lens 101 is completed to achieve the adjustment of the dimming value, the relative rotation positions of the first rotation adjustment module 1 and the second rotation adjustment module 2 are kept stable again by the corresponding mutual adsorption action of the second magnet 203 and the first magnet 103, and further the relative angle between the second dimming lens 102 and the first dimming lens 101 is kept fixed again, so that the adjusted dimming value can be kept stable.

Optionally, in this embodiment, the first rotation adjusting module 1 includes a first rotating ring 102, and the first magnet 101 and the first dimming lens 103 are disposed on the first rotating ring 102; specifically, the middle of the first rotating ring 102 is provided with a light hole, an accommodating groove for accommodating the first magnet 103 is formed on the edge of the first rotating ring 102, and the first magnet 103 and the first dimming mirror 101 are detachably and sequentially arranged on the first rotating ring 102 in a press fit manner through the first press ring 104, so that the first magnet 103 and the first dimming mirror 101 can be conveniently assembled and replaced. The second rotation adjustment module 2 includes a second rotation ring 202, and the second magnet 203 and the second dimming mirror 201 are both disposed on the second rotation ring 202; the middle of the second rotating ring 202 is provided with a light hole, the edge of the second rotating ring 202 is provided with an accommodating groove for accommodating the second magnet 203, and the second magnet 203 and the second dimming mirror 201 are sequentially arranged on the second rotating ring 202 in a pressing manner through the second pressing ring 204, so that the second magnet 203 and the second dimming mirror 201 can be conveniently assembled and replaced.

The first rotating ring 102 has a rotating inner curved surface 1021 having an uneven cross section at the front end thereof, and the second rotating ring 202 has a rotating outer curved surface 2021 at the rear end thereof, which is fitted to the rotating inner curved surface 1021. The rear end of the second rotating ring 202 extends into the front end of the first rotating ring 102, and the rotating outer curved surface 2021 and the rotating inner curved surface 1021 cooperate to further fix the first rotating ring 102 and the second rotating ring 202 relative to each other in the axial direction, while allowing relative rotation in the circumferential direction. The first rotation adjusting module 1 and the second rotation adjusting module 2 are stably assembled in the axial direction and can freely rotate relatively in the circumferential direction.

Preferably, the second rotating ring 202 has a second rotation adjusting screw 2020 on an outer periphery thereof. When the whole dimming mirror assembly composed of the first rotary adjusting module 1 and the second rotary adjusting module 2 is assembled at the back of the front end of the lens, the dimming mirror assembly can directly exert force on the second rotary adjusting screw 2020, and manually rotate and adjust the second rotary adjusting module 2, so that the dimming value can be adjusted more conveniently.

In addition, the first rotation adjustment module 1 has a first screw portion 1040 capable of screwing with a lens. Alternatively, the first threaded portion 1040 may be opened at the rear end of the first rotating ring 102, or at the rear end of the first pressing ring 104. In the present embodiment, the front end of the first press ring 104 is press-fitted and fixed to the rear end of the first rotary ring 102, and the rear end of the first rotary ring 104 is protruded rearward, and the outer peripheral portion of the protruded portion has the first threaded portion 1040. The front end of the lens is provided with an internal thread matched with the first thread portion 1040, and when the integral dimming mirror assembly composed of the first rotary adjusting module 1 and the second rotary adjusting module 2 is assembled at the front end of the lens, the first thread portion 1040 on the first press ring 104 is screwed with the internal thread of the lens, so that the integral dimming mirror assembly is stably installed.

Further optionally, a first rotation adjustment thread 1020 is provided on the outer circumference of the first rotation ring 102. When the first thread portion 1040 of the first pressing ring 104 is screwed with the internal thread of the lens so that the first rotating ring 102 is assembled at the front end of the lens, the first rotation adjusting thread 1020 is directly pressed, and the first pressing ring 104 can be manually screwed conveniently and controllably.

Example 2

Referring to fig. 6 to 10, the magnetically adjustable dimming mirror assembly of this embodiment further includes a fixed adapter module 3 on the basis of the dimming mirror assembly of embodiment 1. The integral dimming mirror assembly consisting of the first rotary adjusting module 1 and the second rotary adjusting module 2 can be assembled at the front end of the lens in a switching way through the arranged fixed switching module 3; moreover, the rotation adjustment of the whole dimming mirror assembly consisting of the first rotation adjustment module 1 and the second rotation adjustment module 2 can be performed, so that the anti-reflection adjustment is realized.

The fixed adapter module 3 includes a fixed ring 302 and a fixed magnet 301. Optionally, the fixed magnet 301 is an annular magnetic strip. Have the light trap in the centre of solid fixed ring 302, seted up the holding tank that holds fixed magnet 301 on the edge of the solid fixed ring 302 of the first time, fixed magnet 301 passes through fixed clamping ring 303 pressfitting setting and is in gu on the fixed ring 302, convenient fixed magnet 301's assembly and change.

The first magnet 103 corresponds to the fixed magnet 301 and has an attraction effect. The first rotation adjustment module 1 is rotatably provided at the front end of the fixed relay module 3 by the attraction between the first magnet 103 and the fixed magnet 301.

In addition, the fixed adapter module 3 has a fixed screw thread 3020 that can be screwed with the lens. Specifically, the first rotation adjustment module 1 is freely rotatably provided at the front end of the fixed ring 302, and the rear end of the fixed ring 302 protrudes rearward and has a fixed screw thread portion 3020 on the outer periphery that can be screwed with the lens. At this time, the rear end of the first rotating ring 104 may have the first threaded portion 1040, or the outer circumference of the rear end of the first rotating ring 104 may be a flat surface.

When the integral dimming mirror assembly is assembled at the front end of the lens for use, the fixing thread portion 3020 of the fixing ring 302 is screwed with the internal thread of the lens, so that the integral fixing adapter module 3 is fixedly assembled at the front end of the lens. The rear end of the first press ring 104 can be freely rotatably connected to the front end of the fixed ring 302, and the first magnet 103 and the fixed magnet 301 are attracted to each other, so that the first rotation adjusting module 1 and the fixed switching module 3 are magnetically attracted and fixed and can be manually rotated and adjusted, and the integral dimming mirror assembly composed of the first rotation adjusting module 1 and the second rotation adjusting module 2 can be freely rotatably and indirectly assembled at the front end of the lens.

Thus, when in use, the second rotating ring 202 can be rotated manually to adjust the relative angle between the first rotating adjustment module 1 and the second rotating adjustment module 2, so as to complete the adjustment of the dimming value; the first rotating ring 102 can be manually adjusted to adjust the relative angle between the integral dimming mirror assembly formed by the first rotating adjustment module 1 and the second rotating adjustment module 2 and the fixed adapter module 3, that is, the relative angle between the integral dimming mirror assembly formed by the first rotating adjustment module 1 and the second rotating adjustment module 2 and the lens is adjusted to eliminate the polarized reflection.

Further, the first rotation adjustment screw 1020 provided on the outer periphery of the first rotating ring 102 facilitates the force on the first rotating ring 102, facilitating the rotating operation of the first rotating ring 102.

Example 3

The magnetically adjustable light reduction mirror assembly of this embodiment is based on the magnetically adjustable light reduction mirror assembly of any one of embodiment 1 or embodiment 2. On the basis of the magnetically-adjustable dimming mirror assembly in embodiment 1 or embodiment 2, referring to fig. 11 to 12, the second rotation adjusting module 2 is further provided with an adjusting positioning member 4, so that the relative fixed-value angular rotation between the first rotation adjusting module 1 and the second rotation adjusting module 2 can be realized, thereby realizing the fixed-value adjustment of the dimming value and accurately controlling the dimming value.

Referring to fig. 13, the adjustment positioning member 4 includes a spring 401 and a top ball 402. Wherein, the spring 401 and the top ball 402 are both arranged in a housing 403, one end of the housing 403 is closed, and the other end is an opening end which narrows towards the first rotation adjusting module 1. The housing 403 is fixedly installed on the second rotating ring 202 of the second rotation adjusting module 2, one end of the spring 401 is fixedly connected to the bottom of the housing 403, the other end faces the first rotation adjusting module 1 and is connected to the top ball 402, and the top ball 402 partially protrudes out of the opening end of the housing 403 under the elastic pressing action of the spring 401 and abuts against the first rotation adjusting module 1.

As shown in fig. 14, the first rotating ring 102 of the first rotation adjusting module 1 is provided with a plurality of ball head grooves 1023 for receiving the portion of the top ball 402 protruding out of the housing 403 to slide in. Preferably, a plurality of the ball grooves 1023 are distributed at fixed points along the rotation circumferential direction. Referring to fig. 14 again, in the illustrated embodiment, five ball grooves 1023 are provided, and different included angles of ≤ 1, < 2, < 3, and ≤ 4 are respectively provided between the four ball grooves 1023 on the left side and the ball groove 1023 on the rightmost side, which respectively correspond to different dimming value adjustment values.

When the second rotating ring 202 of the second rotation adjusting module 2 is rotated to rotationally adjust the relative angle between the first rotation adjusting module 1 and the second rotation adjusting module 2, the top ball 402 will slide on the first rotating ring 102, and when the top ball 402 slides into the ball head groove 1023, the rotation will be stopped, and the dimming mirror assembly is set at a fixed dimming value; when the dimming value needs to be adjusted to another dimming value, the second rotating ring 202 is rotated by manually increasing the force, so that the top ball 402 is rotated out of the ball head groove 1023 and is rotated and slid into the next ball head groove 1023, and then the dimming value can be adjusted to another set dimming value.

In addition, it is further preferable that an arc-shaped deep limit groove 1022 is formed in the first rotating ring 102 of the first rotation adjusting module 1, and the top bead 402 is limited to slide in the arc-shaped deep limit groove 1023; and a plurality of the ball head grooves 1022 are all disposed in the arc-shaped deep limit groove 1023. Therefore, the rotation adjusting angle of the dimming value is limited, and the rotation adjusting angle of the dimming value is limited within the set angle range. And optionally, the arc angle of the arc-shaped limiting deep groove 1023 is not more than 90 °.

Referring to fig. 15 to 16, there is shown a magnetically adjustable dimming mirror assembly according to embodiment 1 of the present embodiment, wherein the housing 403 of the adjusting positioner 4 is partially assembled on the second rotation adjusting module 2, and the top bead 402 is limited to slide in the arc-shaped deep limiting groove 1023. In use, the dimming mirror assembly is directly assembled with the lens by the first rotating ring 102 of the first rotation adjusting module 1, and in this embodiment, the rear end of the first rotating ring 102 has a first threaded portion 1040 capable of being screwed with the front end of the lens.

Referring to fig. 17 to 18, there is shown a magnetically adjustable dimming mirror assembly according to the embodiment 2, in which the housing 403 of the adjusting positioner 4 is partially assembled on the second rotation adjusting module 2, and the top ball 402 is limited to slide in the arc-shaped limiting deep groove 1023. When the lens assembly is used, the lens assembly is assembled with the lens through the fixed switching module 2, so that the integral lens assembly consisting of the first rotary adjusting module 1 and the second rotary adjusting module 2 is indirectly assembled at the front end of the lens, and the rear end of the fixing ring 302 is provided with a fixing thread part 3020 capable of being in threaded connection with the lens.

Example 4

The utility model discloses a light reduction subassembly 300 with adjustable it is inhaled to magnetism is when using, and it is shown with reference to fig. 19, and the direct spiro union of light reduction subassembly 300 with adjustable it is inhaled to magnetism assembles the front end at camera 100's camera lens 200, cooperates with camera lens 200, and the light quantity that control got into camera lens 200.

As shown in fig. 20a, the dimming mirror assembly i 300a according to embodiment 1 is mounted on the front end of the lens 200 of the video camera 100, and when used in cooperation with the lens 200, the first rotary ring 102 of the first rotary adjustment module 1 directly completes the screw-mounting with the lens 200.

Referring to fig. 20b, the dimming mirror assembly ii 300b of embodiment 2 is mounted on the front end of the lens 200 of the video camera 100, and when used in cooperation with the lens 200, the fixed adapter module 2 is used to complete the mounting with the lens 200. The fixed switching module 2 can be directly fixed in advance and screwed at the front end of the lens 200, and can not be detached all the time under the condition of not influencing photography, and the whole dimming mirror assembly consisting of the first rotary adjusting module 1 and the second rotary adjusting module 2 can be freely disassembled and assembled for use.

In addition, when the lens 200 of the camera 100 is assembled and used, other overlapping filters 400 can be overlapped and magnetically attracted and installed as required for flexible use. The superimposing filter 400 includes a filter ring to which the filter is attached, and magnets are mounted on the filter ring at positions corresponding to the positions of the first magnet 103, the second magnet 203, and the fixing magnet 301.

Referring to fig. 21, the dimming mirror assembly ii 300b of embodiment 2 and other superimposed filters 400 are assembled together at the front end of the lens 200 of the video camera 100, wherein a fixed adapter module 2 of the dimming mirror assembly ii 300b is first fixed and screwed to the front end of the lens 200, and one superimposed filter 400 is added between the fixed adapter module 2 and the integral dimming mirror assembly formed by the first rotation adjusting module 1 and the second rotation adjusting module 2 through superimposed magnetic attraction, and another superimposed filter 400 is added at the front end of the second rotation adjusting module 2 through superimposed magnetic attraction.

The above embodiments are merely preferred embodiments of the present invention, and only lie in further detailed description of the technical solutions of the present invention, but the protection scope and the implementation manner of the present invention are not limited thereto, and any changes, combinations, deletions, replacements, or modifications that do not depart from the spirit and principle of the present invention will be included in the protection scope of the present invention.

Claims (10)

1. A magnetically-adjustable dimming mirror assembly is characterized by comprising a first rotary adjusting module and a second rotary adjusting module; the first rotary adjusting module is provided with a first dimming lens, and the second rotary adjusting module is provided with a second dimming lens;

a first magnet is arranged on the first rotary adjusting module, and a second magnet corresponding to the first magnet is arranged on the second rotary adjusting module; the second rotation adjusting module is arranged at the front end of the first rotation adjusting module through the magnetic attraction effect, and the second rotation adjusting module can freely rotate relative to the first rotation adjusting module.

2. The magnetically adjustable dimming mirror assembly of claim 1, wherein said first rotation adjustment module comprises a first rotating ring, said first magnet and said first dimming lens are disposed on said first rotating ring;

the second rotation adjusting module comprises a second rotating ring, and the second magnet and the second dimming lens are arranged on the second rotating ring; the second rotating ring is arranged at the front end of the first rotating ring in a freely rotating mode, and the second magnet corresponds to the first magnet and has an attraction effect.

3. The magnetically adjustable dimming mirror assembly according to claim 2, wherein the first magnet and the first dimming mirror are disposed on the first rotating ring via a first pressing ring;

and/or the second magnet and the second dimming lens are arranged on the second rotating ring through a second pressing ring in a pressing mode.

4. The magnetically adjustable dimmer mirror assembly of claim 2, wherein the front end of said first rotatable ring has an inner rotatable surface with a concave-convex cross-section, and the rear end of said second rotatable ring has an outer rotatable surface adapted to said inner rotatable surface;

the rear end of the second rotating ring is connected to the front end of the first rotating ring, and the rotating outer curved surface and the rotating inner curved surface are matched to realize relative free rotation.

5. The magnetically adjustable dimming mirror assembly according to claim 2, wherein the first rotating ring has a first rotation adjustment thread on its outer circumference; and/or the outer periphery of the second rotating ring is provided with a second rotating adjusting thread.

6. The magnetically adjustable dimming mirror assembly according to any one of claims 1 to 5, wherein the first rotation adjusting module has a first threaded portion adapted to be screwed with a lens.

7. The magnetically adjustable dimming mirror assembly according to any one of claims 1 to 5, further comprising a fixed adapter module; the fixed switching module is provided with a fixed magnet; the first magnet corresponds to the fixed magnet and has an adsorption effect;

the first rotary adjusting module can be freely and rotatably arranged at the front end of the fixed switching module under the adsorption action of the first magnet and the fixed magnet; and the fixed switching module is provided with a fixed thread part which can be in threaded connection with the lens.

8. The magnetically adjustable dimming mirror assembly according to claim 7, wherein the fixed adapter module comprises a fixed ring, and the fixed magnet is disposed on the fixed ring by pressing via a fixed pressing ring; the first rotary adjusting module can be freely and rotatably arranged at the front end of the fixing ring, and the rear end of the fixing ring is provided with a fixing thread part capable of being in threaded connection with a lens.

9. A magnetically adjustable dimming mirror assembly according to any one of claims 1 to 8; the second rotary adjusting module is also provided with an adjusting positioning piece; the adjusting positioning piece comprises a spring and a top ball; one end of the spring is fixedly connected to the second rotary adjusting module, and the other end of the spring faces the first rotary adjusting module and is connected with the ejector bead; the top ball is elastically propped against the first rotary adjusting module by the spring;

a plurality of ball head grooves capable of accommodating the top balls to slide in are formed in the first rotation adjusting module; the plurality of ball head grooves are distributed at fixed points along the rotating circumferential direction.

10. The magnetically adjustable dimming mirror assembly according to claim 9, wherein the first rotation adjustment module is provided with an arc-shaped limit deep groove, and the top bead is limited in the arc-shaped limit deep groove to slide; and a plurality of ball head grooves are arranged in the arc-shaped limit deep groove.

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