CN113885269A

CN113885269A - Lens aperture adjusting device

Info

Publication number: CN113885269A
Application number: CN202111268257.1A
Authority: CN
Inventors: 祖生猛; 林聪�; 彭坤; 刘富泉; 吕新科
Original assignee: Henan Hozel Electronics Co Ltd
Current assignee: Henan Hozel Electronics Co Ltd
Priority date: 2021-10-29
Filing date: 2021-10-29
Publication date: 2022-01-04
Anticipated expiration: 2041-10-29
Also published as: CN113885269B

Abstract

The invention discloses a lens aperture adjusting device, which comprises: the rotary part is rotatably arranged on the base along the axis direction; the fixed piece is positioned at the radial outer side of the rotating piece and connected to the base, and the base, the rotating piece and the fixed piece are combined to form a lens avoidance hole matched with the lens; the plurality of shielding plates are arranged around the axis of the lens avoiding hole in a surrounding mode, two adjacent shielding plates are partially overlapped, the radial outer end of each shielding plate in the plurality of shielding plates is rotatably connected with the fixing piece around the first axis direction, and the first axis is parallel to the axis of the lens avoiding hole; wherein, be equipped with the spout on every sunshade in a plurality of sunshade, have a plurality of removable pins on the rotating member, a plurality of removable pins are located a plurality of spouts respectively. When the rotating member rotates, the rotating member can drive the plurality of shielding plates to rotate, so that the size of the aperture is changed.

Description

Lens aperture adjusting device

Technical Field

The embodiment of the invention relates to the field of electronic equipment, in particular to a lens aperture adjusting device.

Background

For the camera aperture, in the place with strong light, the camera can obtain deeper depth of field and sharper picture by reducing the aperture, and in the place with insufficient light, the light-entering quantity can be increased by increasing the aperture, and then pure picture with higher exposure and lower noise point can be obtained. In the field of electronic equipment, the size of an aperture of a camera of general electronic equipment cannot be changed, so that the camera cannot adapt to various shooting environments by changing the aperture, and thus, many electronic equipment are overexposed outdoors in strong sunlight, and underexposed during shooting at night, the picture is dim, the noise is high, and details are lost.

In view of the above, there is a need in the art to develop a novel iris diaphragm in order to overcome the above technical problems.

Disclosure of Invention

An object of an embodiment of the present invention is to provide a lens aperture adjusting apparatus, so as to solve at least the problem of the prior art that the aperture size of an electronic device is not changeable.

To solve the above technical problem, an embodiment of the present invention provides a lens aperture adjusting apparatus, including:

a base;

the rotating piece is rotatably arranged on the base along the axis direction;

the fixing piece is positioned on the radial outer side of the rotating piece and connected to the base, and the base, the rotating piece and the fixing piece are combined to form a lens avoidance hole matched with a lens;

the shielding plates are arranged around the axis of the lens avoiding hole in an encircling manner, two adjacent shielding plates are partially overlapped, the radial outer end of each shielding plate in the plurality of shielding plates is rotatably connected with the fixing piece around a first axis direction, and the first axis is parallel to the axis of the lens avoiding hole;

wherein, in a plurality of sunshade each be equipped with the spout on the sunshade, have a plurality of activity round pins on the rotating member, a plurality of activity round pins are located respectively in a plurality of spouts.

Compared with the prior art, the embodiment of the invention has the advantages that the lens diaphragm adjusting device comprises: a plurality of sunshade, the radial outer end and the mounting rotatable coupling of a plurality of sunshade are equipped with the spout on a plurality of sunshade simultaneously, have a plurality of removable pins on the rotating member, and a plurality of removable pins are located a plurality of spouts respectively. Therefore, when the rotating piece rotates, the rotating piece can drive the plurality of shielding plates to rotate, and therefore the size of the aperture is changed.

In an embodiment, the sliding groove is a strip-shaped sliding groove, and the strip-shaped sliding groove extends along the involute direction of the lens avoiding hole.

In one embodiment, one side of the shielding plate facing the axial direction of the lens avoiding hole is provided with an arc surface, and the arc surface is arranged close to the radial outer end of the shielding plate;

wherein, the arc surfaces of the plurality of shielding plates are mutually combined to form an aperture.

In one embodiment, the upper surface of the fixing member is provided with a plurality of upper mounting grooves and a plurality of lower mounting grooves, each of the upper mounting grooves and each of the lower mounting grooves are open towards the lens avoiding hole, each of the upper mounting grooves and each of the lower mounting grooves are alternately arranged around the axial direction of the lens avoiding hole, and the depth of the upper mounting groove is smaller than that of the lower mounting groove;

wherein each of the shutters is rotatably installed in each of the upper installation grooves and each of the lower installation grooves.

In one embodiment, the upper surface of the base is provided with a plurality of mutually spaced rotary grooves along the circumferential direction of the lens avoiding hole, and each rotary groove is open towards the lens avoiding hole;

the outer ring surface of the rotating element is provided with a plurality of rotating protrusions extending along the radial direction, and the rotating protrusions are respectively movably positioned in the rotating grooves along the circumferential direction of the rotating element.

In one embodiment, a plurality of strip-shaped grooves spaced from each other are formed in the inner ring surface of the base along the circumferential direction of the lens avoidance hole, each strip-shaped groove is open towards the upper end surface of the base, and a limiting convex column is arranged between every two adjacent strip-shaped grooves of the base;

the outer ring surface of the rotating element is provided with a plurality of limiting grooves, the limiting grooves are respectively positioned below the rotating protrusions and are open towards the lower end surfaces of the rotating protrusions, the length of the limiting grooves in the circumferential direction of the rotating element is larger than that of the limiting convex columns in the circumferential direction of the base, and the limiting convex columns are operably positioned in the limiting grooves.

In one embodiment, the upper surface of the limiting convex column is flush with the bottom of the rotary groove, and a ball groove is formed in the bottom of the rotary groove and/or the upper surface of the limiting convex column;

the base further comprises a plurality of balls, and the balls are arranged in the ball grooves respectively.

In one embodiment, the lens aperture adjusting apparatus further includes:

the magnet group is arranged on the outer ring surface of the rotating element;

the driving coil is arranged on the outer ring surface of the base, arranged on the radial outer side of the magnet group and matched with the magnet group to drive the rotating piece to rotate;

the base and the fixing piece are provided with avoiding grooves, and the avoiding grooves are located between the magnet groups and the driving coils.

In an embodiment, the plurality of magnet groups and the plurality of driving coils are both arranged around the lens avoidance hole;

the lens aperture adjusting device further comprises a flexible circuit ring and a plurality of chips arranged on the flexible circuit ring, the plurality of driving coils are arranged on the flexible circuit ring, and each chip is electrically connected with each driving coil.

In one embodiment, a part of the radially inner annular surface of the fixed member extends towards the axial direction of the lens avoidance hole of the fixed member to form a circle of flange, and the flange is located on the upper surface of the rotating member;

wherein each of the plurality of shrouds radially outer end is rotatably connected to the upper surface of the flange about the first axis.

In an embodiment, a plurality of magnetic pastes are arranged on the lower end surface of the base, and each magnetic paste is arranged around the lens avoidance hole in a surrounding manner.

Drawings

One or more embodiments are illustrated by way of example in the accompanying drawings, which correspond to the figures in which like reference numerals refer to similar elements and which are not to scale unless otherwise specified.

Fig. 1 is an exploded view of a lens aperture adjustment device in an embodiment of the present invention;

fig. 2 is an assembly view of a lens aperture adjusting apparatus according to an embodiment of the present invention;

FIG. 3 is a cross-sectional view of FIG. 2;

FIG. 4 is a schematic view of an embodiment of a shutter according to the present invention;

FIG. 5 is a schematic view of a fastener according to an embodiment of the present invention;

FIG. 6 is a schematic view of the structure of a rotating member in an embodiment of the present invention;

FIG. 7 is a schematic structural diagram of a base in an embodiment of the present invention;

FIG. 8 is a schematic diagram of a flexible circuit loop in an embodiment of the invention;

FIG. 9 is an exploded view of the fixed member, rotating member and base in an embodiment of the present invention;

FIG. 10 is an assembly view of the rotary member, base and flexible circuit ring in an embodiment of the present invention;

fig. 11 is an assembly view of the rotating member and the base in an embodiment of the present invention.

Description of reference numerals:

1. a base; 11. rotating the groove; 12. a strip-shaped groove; 13. a limiting convex column; 14. a ball groove; 15. positioning the projection; 16. magnetic pasting; 17. mounting grooves; 2. a rotating member; 21. a movable pin; 22. rotating the boss; 23. a limiting groove; 3. a fixing member; 31. a flange; 32. positioning pins; 33. mounting a mounting groove; 34. a lower mounting groove; 35. a positioning groove; 36. a connecting projection; 4. a shutter; 41. a chute; 42. a circular arc surface; 43. a pin hole; 5. a lens avoidance hole; 51. an aperture; 6. a ball bearing; 71. a magnet group; 711. a magnet; 72. a drive coil; 73. a flexible circuit loop; 74. a chip; 75. a position sensor; 8. an avoidance groove; 9. a lens; 10. a top cover; 101. and connecting the grooves.

Detailed Description

In order to make the objects, technical solutions and advantages of the embodiments of the present invention more apparent, embodiments of the present invention will be described in detail below with reference to the accompanying drawings. However, it will be appreciated by those of ordinary skill in the art that numerous technical details are set forth in order to provide a better understanding of the present application in various embodiments of the present invention. However, the technical solution claimed in the present application can be implemented without these technical details and various changes and modifications based on the following embodiments.

In the following description, for the purposes of illustrating various disclosed embodiments, certain specific details are set forth in order to provide a thorough understanding of the various disclosed embodiments. One skilled in the relevant art will recognize, however, that the embodiments may be practiced without one or more of the specific details. In other instances, well-known devices, structures and techniques associated with this application may not be shown or described in detail to avoid unnecessarily obscuring the description of the embodiments.

Throughout the specification and claims, the word "comprise" and variations thereof, such as "comprises" and "comprising," are to be understood as an open, inclusive meaning, i.e., as being interpreted to mean "including, but not limited to," unless the context requires otherwise.

The embodiments of the present invention will be described in detail below with reference to the accompanying drawings in order to more clearly understand the objects, features and advantages of the present invention. It should be understood that the embodiments shown in the drawings are not intended to limit the scope of the present invention, but are merely intended to illustrate the spirit of the technical solution of the present invention.

Reference throughout this specification to "one embodiment" or "an embodiment" means that a particular feature, structure, or characteristic described in connection with the embodiment is included in at least one embodiment. Thus, the appearances of the phrases "in one embodiment" or "in an embodiment" in various places throughout this specification are not necessarily all referring to the same embodiment. Furthermore, the particular features, structures, or characteristics may be combined in any suitable manner in one or more embodiments.

As used in this specification and the appended claims, the singular forms "a", "an", and "the" include plural referents unless the context clearly dictates otherwise. It should be noted that the term "or" is generally employed in its sense including "and/or" unless the context clearly dictates otherwise.

In the following description, for the purposes of clearly illustrating the structure and operation of the present invention, directional terms will be used, but terms such as "front", "rear", "left", "right", "outer", "inner", "outer", "inward", "upper", "lower", etc. should be construed as words of convenience and should not be construed as limiting terms.

A lens aperture adjusting apparatus according to an embodiment of the present invention is described below with reference to the accompanying drawings, as shown in fig. 1 to 3, and includes: base 1, rotating member 2, mounting 3 and a plurality of sunshade 4, wherein, rotating member 2 rotationally sets up on base 1 along the axis direction, and mounting 3 is located the radial outside of rotating member 2 to connect on base 1, rotating member 2 and mounting 3 have after the combination with the camera lens of 9 cooperations dodge hole 5. The plurality of shutters 4 are arranged around an axis of the lens escape hole 5, and two adjacent shutters 4 are partially overlapped, and a radially outer end of each shutter 4 of the plurality of shutters 4 is rotatably connected to the mount 3 around a first axial direction arranged parallel to the axis of the lens escape hole 5. As shown in fig. 2 and 4, each shutter 4 is provided with a slide groove 41, the rotary member 2 is provided with a pair of movable pins 21, and the plurality of movable pins 21 are respectively located in the plurality of slide grooves 41.

In addition, it should be noted that, as shown in fig. 1, the base 1, the rotating member 2 and the fixing member 3 are all ring structures, wherein the base 1, the rotating member 2 and the fixing member 3 are all ring structures, but in some embodiments, the base 1, the fixing member 3 and the rotating member 2 may also be other structures, such as a polygonal structure.

Compared with the prior art, the embodiment of the invention has the advantages that the lens diaphragm adjusting device comprises: the radial outer ends of the plurality of shielding plates 4 are rotatably connected with the fixed part 3, the plurality of shielding plates 4 are provided with sliding grooves 41, the rotating part 2 is provided with a plurality of movable pins 21, and the plurality of movable pins 21 are respectively positioned in the plurality of sliding grooves 41. Therefore, when the rotary member 2 rotates, the rotary member 2 can drive the plurality of shutters 4 to rotate, thereby changing the size of the aperture 51.

Specifically, in this embodiment, as shown in fig. 4, the sliding groove 41 is an elongated sliding groove 41, and the elongated sliding groove 41 extends along the involute direction of the lens avoiding hole 5 of the rotating element 2. Since the elongated sliding groove 41 extends along the involute direction of the lens escape hole 5, each shutter 4 slides more smoothly, and the size of the aperture 51 is more conveniently adjusted, and the aperture 51 and the lens escape hole 5 are coaxially arranged. Of course, it should be noted that, in some embodiments, the sliding groove 41 may not be an elongated groove, but only be a circular hole, or the sliding groove 41 may also be an elongated sliding groove 41, but the length direction of the elongated sliding groove 41 does not extend along the involute direction of the lens avoiding hole 5.

In addition, as shown in fig. 4, one side of the shutter 4 facing the axial direction of the lens escape hole 5 has an arc surface 42, the arc surface 42 is provided near the radially outer end of the shutter 4, and the arc surfaces 42 of the plurality of shutters 4 are combined with each other to form a diaphragm 51. The size of the aperture 51 is adjusted by the forward rotation or reverse rotation of the rotary member 2.

Specifically, as shown in fig. 5, a radially inner circumferential surface of the mount 3 has a portion extending in the axial direction of the lens escape hole 5 to form a ring of flange 31, the flange 31 is located on the upper surface of the rotary member 2 when the mount 3 is mounted on the radially outer side of the rotary member 2, and the radially outer end of each of the plurality of shutters 4 is rotatably connected to the upper surface of the flange 31 in the first axial direction. As shown in fig. 2 and 5, the upper surface of the flange 31 is provided with a plurality of positioning pins 32, each positioning pin 32 is disposed around the lens avoiding hole 5, and the radially outer end of each shutter 4 is also provided with a pin hole 43, and each positioning pin 32 is inserted into the pin hole 43 of each shutter 4. As shown in fig. 6, the portion of the upper surface of the rotor 2 located radially inward is exposed outside the stator 3, the movable pins 21 are located on the portion of the upper surface of the rotor 2 located outside the stator 3, and the movable pins 21 are also provided around the lens escape hole 5. As shown in fig. 2, the positioning pin 32 and the movable pin 21 corresponding to each shutter 4 are spaced apart from each other by a predetermined distance in the radial direction while in the circumferential direction.

In addition, as shown in fig. 2 and 5, preferably, the upper surface of the fixing member 3 is provided with a plurality of upper mounting grooves 33 and a plurality of lower mounting grooves 34, each of the upper mounting grooves 33 and each of the lower mounting grooves 34 are open toward the lens avoiding hole 5, each of the upper mounting grooves 33 and each of the lower mounting grooves 34 are alternately arranged around the axial direction of the lens avoiding hole 5, and the depth of the upper mounting groove 33 is smaller than that of the lower mounting groove 34; wherein each of the shutters 4 is rotatably installed in each of the upper installation grooves 33 and each of the lower installation grooves 34. In the present embodiment, six positioning pins 32 are disposed on the fixing member 3, wherein three positioning pins 32 are disposed in each upper mounting groove 33, and another three positioning pins 32 are disposed in each lower mounting groove 34, because the upper mounting grooves 33 and the lower mounting grooves 34 are disposed in a staggered manner, the shutters 4 can be stacked in a high-low-high-low manner, and after the six shutters 4 are assembled, only two movable shutters 4 are stacked, thereby reducing the overall assembly volume. Of course, it should be noted that, in the present embodiment, only six shutters 4 are provided as an example, and in some embodiments, the number of shutters 4 may be adjusted as needed without departing from the scope of the present invention.

In addition, as shown in fig. 6 and 7, a plurality of mutually spaced rotation grooves 11 are formed in the upper surface of the base 1 along the circumferential direction of the lens escape hole 5, each rotation groove 11 is open toward the lens escape hole 5 of the base 1, a plurality of rotation protrusions 22 extending in the radial direction are provided on the outer circumferential surface of the rotation member 2, and the plurality of rotation protrusions 22 are respectively movably located in the plurality of rotation grooves 11 along the circumferential direction of the rotation member 2, that is, the length of the rotation groove 11 along the circumferential direction of the base 1 is greater than the length of the rotation protrusion 22 along the circumferential direction of the rotation member 2, so that the rotation protrusion 22 can move in the rotation groove 11.

In addition, as shown in fig. 6 and 7, a plurality of strip-shaped grooves 12 are formed on the inner annular surface of the base 1 along the circumferential direction of the lens avoiding hole 5, each strip-shaped groove 12 is open toward the upper end surface of the base 1, a position-limiting convex column 13 is arranged between two adjacent strip-shaped grooves 12 on the base 1, and in addition, as shown in fig. 6 and 7, a plurality of position-limiting grooves 23 are formed on the outer annular surface of the rotating element 2, and each position-limiting groove 23 is located below each of the plurality of rotating protrusions 22 and is open toward the lower end surface of each rotating protrusion 22. The length of the limiting groove 23 in the circumferential direction of the rotating part 2 is greater than the length of the limiting convex column 13 in the cylindrical direction of the base 1, and the limiting convex columns 13 are operatively located in the limiting groove 23. That is, after the rotation protrusion 22 is located in the rotation groove 11, the restricting protrusion 13 is inserted into the restricting groove 23, so that the rotation member 2 and the base 1 can be closely and rotatably fitted to each other.

In addition, in order to make the rotation of the rotation protrusion 22 in the rotation groove 11 more convenient, as shown in fig. 3, fig. 6 and fig. 7, a ball 6 is further disposed between the rotation protrusion 22 and the base 1, specifically, the upper surface of the limiting protrusion is flush with the groove bottom of the rotation groove 11, a ball 6 groove 14 is formed on the groove bottom of the rotation groove 11 and/or the upper surface of the limiting convex column 13, the base 1 includes a plurality of balls 6, and the plurality of balls 6 are disposed in the ball 6 grooves 14 respectively. The ball 6 is propped together with the limiting bulge and is propped together with the groove 14 of the ball 6, and the friction force between the rotating piece 2 and the base 1 can be effectively reduced through the ball 6.

It should be noted that the groove 14 of the ball 6 may be only disposed on the upper surface of the limiting convex column 13, or may be only disposed on the groove bottom of the rotating groove 11. Of course, the ball 6 groove 14 may be partially located at the bottom of the rotating groove 11 and partially located on the upper surface of the position-limiting protrusion 13, and in this embodiment, the ball 6 groove 14 is partially located at the bottom of the rotating groove 11 and partially located on the upper surface of the position-limiting protrusion 13.

In addition, as shown in fig. 7, in order to connect the base 1 and the rotating member 2 together, as shown in the figure, a plurality of positioning protrusions 15 are provided on the radial outer side of the upper surface of the base 1, each positioning protrusion 15 is annularly provided around the axis of the lens avoiding hole 5, and as shown in fig. 9, a plurality of positioning grooves 35 are also provided on the lower surface of the fixing member 3, each positioning groove 35 is annularly provided around the axis of the lens avoiding hole 5, and each positioning protrusion 15 is inserted into each positioning groove 35, thereby fixing the fixing member 3 on the base 1.

In addition, in order to drive the rotary 2 to rotate, as shown in fig. 6, 8, 10 and 11, the lens aperture adjustment apparatus further includes: the magnetic driving mechanism comprises a magnet group 71 and a driving coil 72, wherein the magnet group 71 is arranged on the outer annular surface of the rotating element 2, the driving coil 72 is arranged on the outer annular surface of the base 1, and the driving coil 72 is arranged on the radial outer side of the magnet group 71 and is matched with the magnet group 71 to drive the rotating element 2 to rotate. Wherein, base 1 and mounting 3 are all seted up and are dodged groove 8, dodge groove 8 and lie in between magnet group 71 and drive coil 72. Because the base 1 and the fixing piece 3 are both provided with the avoidance grooves 8, the interference between the magnet group 71 and the coil can be avoided. As shown in the drawing, the magnet group 71 includes two magnets 711, the two magnets 711 are arranged in the circumferential direction, and the two magnets 711 have opposite magnetism.

As shown in fig. 6, 8, 10, and 11, the plurality of magnet groups 71 and the plurality of driving coils 72 are provided, and the plurality of magnet groups 71 and the plurality of driving coils 72 are provided around the lens avoiding hole 5; the lens aperture adjusting apparatus further includes a flexible circuit ring 73, and the plurality of driving coils 72 are disposed on a radially inner side of the flexible circuit ring 73, but in some embodiments, each of the plurality of driving coils may also be disposed on a radially outer side of the flexible circuit ring 73. The outer circumferential surface of the base 1 has a mounting groove 17, and the flexible circuit ring 73 is coupled to the mounting groove 17. In order to supply power to each coil, a plurality of chips 74 are further disposed on the flexible circuit ring 73, each chip 74 corresponds to one coil, each chip 74 supplies power to the corresponding coil, and each chip 74 is electrically connected to the flexible circuit ring 73.

Meanwhile, the flexible circuit ring 73 is provided with a plurality of position sensors 75, and as shown in fig. 6, 8, 10 and 11, the position sensors 75 are installed in the coils to sense the positions of the magnets 711 to perform the position monitoring operation of the rotary member 2.

In addition, as shown in fig. 9, a plurality of magnetic pastes 16 are further disposed on the lower end surface of the base 1, each magnetic paste 16 is disposed around the lens avoiding hole 5, and when the base 1 is disposed above the lens 9, the magnetic paste 16 can suck the lens 9, so that the lens aperture adjusting device in the present embodiment can be fixed to the lens 9 in an auxiliary manner.

In addition, as shown in fig. 1 and fig. 2, the lens aperture adjusting apparatus further includes a top cover 10, the top cover 10 is also an annular structure, the middle of the top cover 10 is a lens avoiding hole 5, a plurality of connecting grooves 101 are formed in the radial outer side of the top cover 10, a plurality of connecting protrusions 36 are also formed in the radial outer side of the fixing member 3, each connecting groove 101 and each connecting protrusion 36 are arranged around the axis of the lens avoiding hole 5, and each connecting protrusion 36 is clamped in each connecting groove 101, so that the top cover 10 is fixed on the fixing member 3.

While the preferred embodiments of the present invention have been described in detail above, it should be understood that aspects of the embodiments can be modified, if necessary, to employ aspects, features and concepts of the various patents, applications and publications to provide yet further embodiments.

These and other changes can be made to the embodiments in light of the above detailed description. In general, in the claims, the terms used should not be construed to be limited to the specific embodiments disclosed in the specification and the claims, but should be construed to include all possible embodiments along with the full scope of equivalents to which such claims are entitled.

It will be understood by those of ordinary skill in the art that the foregoing embodiments are specific examples for carrying out the invention, and that various changes in form and details may be made therein without departing from the spirit and scope of the invention in practice.

Claims

1. A lens aperture adjusting apparatus, characterized by comprising:

a base;

the rotating piece is rotatably arranged on the base along the axis direction;

the fixing piece is positioned on the radial outer side of the rotating piece and connected to the base, the rotating piece and the fixing piece are all of annular structures, and the base, the rotating piece and the fixing piece are combined to form a lens avoidance hole matched with a lens;

2. The lens aperture adjusting device according to claim 1, wherein the sliding groove is an elongated sliding groove extending along an involute direction of the lens avoiding hole.

3. The lens aperture adjusting apparatus according to claim 1, wherein a side of the shutter facing the axial direction of the lens escape hole has an arc surface disposed near a radially outer end of the shutter;

4. The lens aperture adjusting device according to claim 1, wherein the upper surface of the fixing member is provided with a plurality of upper mounting grooves and a plurality of lower mounting grooves, each of the upper mounting grooves and each of the lower mounting grooves are open in a direction toward the lens avoiding hole, each of the upper mounting grooves and each of the lower mounting grooves are alternately arranged around an axial direction of the lens avoiding hole, and a groove depth of the upper mounting groove is smaller than a groove depth of the lower mounting groove;

5. The lens aperture adjusting device according to claim 1, wherein a plurality of mutually spaced rotary grooves are formed in the upper surface of the base along a circumferential direction of the lens escape hole, and each rotary groove is open in a direction toward the lens escape hole;

6. The lens aperture adjusting device according to claim 5, wherein a plurality of mutually spaced elongated grooves are formed in the inner annular surface of the base along the circumferential direction of the lens avoiding hole, each elongated groove is open towards the upper end surface of the base, and a limiting convex column is arranged between two adjacent elongated grooves of the base;

7. The lens aperture adjusting device according to claim 6, wherein the upper surface of the limiting convex pillar is flush with the bottom of the rotating groove, and a ball groove is formed on the bottom of the rotating groove and/or the upper surface of the limiting convex pillar;

8. The lens aperture adjustment device according to claim 1, characterized by further comprising:

the magnet group is arranged on the outer ring surface of the rotating element;

9. The lens aperture adjusting apparatus according to claim 8, wherein the plurality of magnet groups and the plurality of driving coils are provided, and the plurality of magnet groups and the plurality of driving coils are provided around the lens avoiding hole;

10. The lens aperture adjusting apparatus according to claim 1, wherein a portion of a radially inner annular surface of the fixing member extends in an axial direction of the lens escape hole of the fixing member to form a ring of flange, and the flange is located on an upper surface of the rotating member;

11. The lens aperture adjusting device according to claim 1, wherein a plurality of magnetic patches are arranged on the lower end surface of the base, and each magnetic patch is annularly arranged around the lens avoiding hole.