Lens aperture adjustment device

Abstract

The present invention discloses a lens aperture adjustment device, comprising a base, a rotating member, a housing, a drive module, and a light shielding member. The base, rotating member, and housing are provided with a lens avoidance hole that cooperates with the lens. The housing is mounted on the base and forms a movable space between the housing and the base. The rotating member is rotatably mounted within the movable space. The drive module is disposed between the base and the rotating member and is used to drive the rotating member to move. The light shielding member includes a plurality of movable shutters and is rotatably mounted within the movable space. Adjacent movable shutters are stacked in a circular arrangement, with a light hole formed between the plurality of movable shutters. The light shielding member is disposed on the housing and cooperates with the rotating member to adjust the opening size of the lens avoidance hole when the rotating member rotates. The lens aperture adjustment device of the present invention overcomes the problem of the aperture size of electronic devices in the prior art being unchangeable.

Description

Technical Field

[0001] The present invention relates to the field of electronic equipment, and in particular to a lens aperture adjustment device. Background Art

[0002] As for the camera aperture, in places with strong light, the camera can obtain a deeper depth of field and a sharper image by narrowing the aperture. In places with insufficient light, increasing the aperture can increase the amount of light entering, which can also produce a pure image with higher exposure and lower noise. In the field of electronic equipment, the cameras of general electronic equipment cannot change the aperture size, so it is impossible to adapt to various shooting environments by changing the aperture. As a result, many electronic devices are overexposed in outdoor places with strong sunlight, and underexposed when shooting at night, resulting in dark images with high noise and loss of details. In order to meet the user's photography needs, a physical variable aperture is very important for shooting.

[0003] In view of this, people skilled in the art need to develop a new type of variable aperture in order to overcome the above technical problems. Summary of the Invention

[0004] The object of the present invention is to provide a lens aperture adjustment device to at least solve the problem in the prior art that the aperture size of electronic equipment cannot be changed.

[0005] In order to solve the above problems, according to one aspect of the present invention, a lens aperture adjustment device is provided, wherein the lens aperture adjustment device includes a base, a rotating member, a shell, a driving module and a shading member, the base, the rotating member and the shell are provided with a lens avoidance hole cooperating with the lens, the shell is installed on the base and forms an active space between the shell and the base, the rotating member is rotatably installed in the active space, the driving module is arranged between the base and the rotating member and is used to drive the rotating member to move, the shading member includes a plurality of movable shutters and is rotatably installed in the active space, adjacent movable shutters are stacked in sequence in a ring-shaped arrangement, and a light-through hole is formed in the middle position of the plurality of movable shutters, the shading member is arranged on the shell and cooperates with the rotating member to adjust the opening size of the lens avoidance hole when the rotating member rotates.

[0006] In one embodiment, the movable shutter has a rear end connected to the outer shell and a front end opposite to the rear end, the front end is provided with a slope, and one end of the slope is provided with an arc notch, and the multiple movable shutters are driven to rotate simultaneously by a rotating member. When the slopes of the multiple movable shutters are combined with each other, a large polygonal aperture is formed, and when the arc notches in the multiple movable shutters are combined with each other, a small aperture is formed.

[0007] In one embodiment, the movable shutter is provided with a slide groove, and the rotating member is provided with a movable pin corresponding to the slide groove. The slide groove and the movable pin cooperate to drive the movable shutter to move along the slide groove when the rotating member rotates.

[0008] In one embodiment, the movable shutter is further provided with a positioning pin hole, the positioning pin hole is arranged behind the slide groove, and the housing is provided with a positioning pin and is connected to the positioning pin hole through the positioning pin.

[0009] In one embodiment, the lens aperture adjustment device further includes an anti-wear member, which is arranged below the shading member to prevent the movable shield from rubbing against the lens.

[0010] In one embodiment, the wear-resistant member is annular and includes an outer peripheral portion and an inner peripheral portion, wherein a thickness of the outer peripheral portion is greater than a thickness of the inner peripheral portion.

[0011] In one embodiment, the wear-resistant component further includes a middle ring portion located between the outer peripheral portion and the inner peripheral portion, wherein a thickness of the middle ring portion is smaller than a thickness of the outer peripheral portion and larger than a thickness of the inner peripheral portion.

[0012] In one embodiment, the driving module includes a driving magnet and a driving coil, a plurality of magnet mounting grooves are provided at the bottom of the rotating part, the driving magnet is arranged in the magnet mounting grooves, and the driving coil is provided on the base and arranged below the driving magnet to cooperate with the driving magnet.

[0013] In one embodiment, a built-in circuit board is provided in the base, and the built-in circuit board is electrically connected to the drive coil and supplies power to the drive coil.

[0014] In one embodiment, the built-in circuit board is further provided with a position sensor, and the position sensor cooperates with the driving magnet to detect the position of the rotating member.

[0015] In one embodiment, the driving module further includes an inductive magnet, which is provided on a surface of the rotating member facing the base, and a position sensor corresponding to the inductive magnet is provided on a surface of the built-in circuit board facing the rotating member.

[0016] In one embodiment, at least one limiting protrusion is provided on the inner side wall of the shell, and at least one limiting groove corresponding to the limiting protrusion is provided on the outer side wall of the rotating member. The limiting protrusion cooperates with the limiting groove to limit the rotation range of the rotating member.

[0017] In one embodiment, at least one pair of oppositely disposed grooves are provided on the rotating member and the base, and balls are provided between the oppositely disposed grooves, and the balls can move in the grooves.

[0018] In one embodiment, a limiting column is provided at at least one end portion of the groove, and the limiting column prevents the ball from escaping from the groove when the rotating member rotates.

[0019] In one embodiment, the height of the limiting column is smaller than the distance between the rotating member and the base.

[0020] In one embodiment, the lens aperture adjustment device further includes a top cover, the light shielding member is disposed between the top cover and the housing, and the top cover is provided with a light shielding hole that cooperates with the lens.

[0021] The lens aperture adjustment device of the present application has at least the following beneficial technical effects:

[0022] First, an aperture adjustment device for an electronic device with variable aperture size is provided.

[0023] Second, reduce the size of the aperture adjustment device on the electronic device. BRIEF DESCRIPTION OF THE DRAWINGS

[0024] Figure 1 This is a cross-sectional view of a lens aperture adjustment device according to one embodiment of the invention.

[0025] Figure 2 1 is an exploded view of a lens aperture adjustment device according to an embodiment of the present invention.

[0026] Figure 3 It is a structural schematic diagram of a movable shutter according to an embodiment of the present invention.

[0027] Figure 4 1 is a schematic structural diagram of the bottom of a housing according to an embodiment of the present invention.

[0028] Figure 5 It is a structural schematic diagram of the bottom of a rotating member according to an embodiment of the present invention.

[0029] Figure 6 It is a structural schematic diagram of a lens aperture adjustment device according to an embodiment of the present invention. DETAILED DESCRIPTION

[0030] The preferred embodiments of the present invention will be described in detail below with reference to the accompanying drawings so that the objects, features and advantages of the present invention can be more clearly understood. It should be understood that the embodiments shown in the accompanying drawings are not intended to limit the scope of the present invention, but are only intended to illustrate the essential spirit of the technical solution of the present invention.

[0031] In the following description, for the purpose of illustrating the various disclosed embodiments, certain specific details are set forth in order to provide a thorough understanding of the various disclosed embodiments. However, those skilled in the relevant art will recognize that the embodiments may be practiced without one or more of these specific details. In other cases, 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.

[0032] 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 "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 manner in one or more embodiments.

[0033] In the following description, in order to clearly show the structure and working mode of the present invention, many directional words will be used for description, but words such as "front", "back", "left", "right", "outside", "inside", "outward", "inward", "up", and "down" should be understood as convenient terms and should not be understood as restrictive terms.

[0034] The prior art has the problem that the aperture size of electronic devices cannot be changed. The present invention provides a lens aperture adjustment device, which includes a base, a rotating member, a housing, a drive module, and a light shielding member. The base, rotating member, and housing are provided with a lens avoidance hole that cooperates with the lens, allowing light to enter the lens. The housing is mounted on the base and forms a movable space between the housing and the base. The rotating member is rotatably mounted within the movable space. The drive module is disposed between the base and the rotating member and is used to drive the rotating member to move. The light shielding member includes multiple movable shutters and is rotatably mounted within the movable space. Adjacent movable shutters are stacked in a circular arrangement, with a light hole formed between the multiple movable shutters. The light shielding member is disposed on the housing and cooperates with the rotating member to adjust the opening size of the lens avoidance hole when the rotating member rotates. The amount of light entering the lens through the through hole surrounded by the light shielding member changes, thereby changing the aperture size. The present invention provides a lens aperture adjustment device that can change the aperture size and is compact.

[0035] The lens aperture adjustment device is usually mounted on the lens. Figure 1 and Figure 2As shown, the lens aperture adjustment device is generally cylindrical and includes a base 10, a rotating member 20, a housing 30, a drive module, and a light shielding member. The base 10, rotating member 20, and housing 30 are provided with a lens clearance hole that cooperates with the lens. The housing 30 is mounted on the base 10 and forms a movable space between the housing 30 and the base 10. The rotating member 20 is rotatably mounted within the movable space. The drive module is disposed between the base 10 and the rotating member 20 and is used to drive the rotating member 20. The light shielding member is provided with a total of six movable shutters 40. Each movable shutter 40 has an identical structure. Each adjacent movable shutter 40 is stacked in a circular arrangement and forms a light-through hole in the middle. The light shielding member is disposed on the housing 30 and cooperates with the rotating member 20 to adjust the opening size of the lens clearance hole when the rotating member 20 rotates. Those skilled in the art will understand that the number of movable shutters is not limited to six. It is sufficient that multiple adjacent, stacked movable shutters are connected to the housing and arranged in a circular arrangement to achieve the purpose of adjusting the lens aperture size without departing from the scope of the present invention.

[0036] In one embodiment, the movable shutter may be configured to have a rear end connected to the housing and a front end opposite the rear end, the front end being provided with an inclined surface, one end of which being provided with an arc notch, and the rotating member driving the plurality of movable shutters to rotate simultaneously. When the inclined surfaces of the plurality of movable shutters are combined with each other, a large polygonal aperture is formed, and when the arc notches of the plurality of movable shutters are combined, a small circular aperture is formed. Specifically, Figure 2 and Figure 3 As shown, the movable shutter 40 has a rear end connected to the housing and a front end opposite the rear end. The front end is provided with a beveled surface 43, and adjacent to the beveled surface 43, there is also an arc-shaped notch 44. The arc-shaped notch 44 is an arc convex in the radial direction of the rotating member 20. When the rotating member rotates, it drives the multiple movable shutters to rotate simultaneously. When the beveled surfaces on the front ends of all the movable shutters combine, a large polygonal aperture is formed, while when the arc-shaped notches on the front ends of all the movable shutters combine, a small circular aperture is formed. The size of the polygonal aperture and the circular aperture can be adjusted by adjusting the size of the beveled surfaces and the arc-shaped notches. Those skilled in the art can adjust the size according to actual needs.

[0037] Furthermore, a sliding groove is provided on the movable shutter, and a movable pin is provided on the rotating member to cooperate with the sliding groove. The sliding groove and the movable pin cooperate to drive the movable shutter to move along the sliding groove when the rotating member rotates. Specifically, Figure 2 as well as Figure 3As shown, each movable shutter 40 is provided with a slide groove 42, and the rotating member 20 is provided with a movable pin 21 that corresponds to the slide groove 42. When the rotating member rotates, the movable pin moves within the slide groove, driving the movable shutter along the slide groove. The size of the light aperture in the middle of the movable shutters changes. When the inclined surfaces on the front ends of all the movable shutters are combined, a polygonal aperture is formed, while when the arc-shaped notches on the front ends of all the movable shutters are combined, a circular aperture is formed, thereby achieving the purpose of adjusting the lens aperture size. The present invention is not limited to having slide grooves on the movable shutters and movable pins at corresponding positions on the rotating member. Alternatively, movable pins can be provided on the movable shutters and slide grooves on the rotating member without departing from the scope of the present invention.

[0038] Preferably, a positioning pin hole can be provided on the movable shutter, and the positioning pin hole is provided behind the slide slot, that is, at the rear end position where the movable shutter is connected to the shell. A positioning pin is provided at the corresponding position on the shell, and the movable shutter and the shell are connected through the positioning pin and the positioning pin hole. Figure 2 and Figure 3 Each movable shutter 40 is pin-connected to the housing 30. In this embodiment, a locating pin 31 is provided at the rear end of the movable shutter 40 where it connects to the housing 30, and a locating pin hole 41 is provided at a corresponding position on the movable shutter 40. This allows the movable shutter 40 to rotate about the locating pin 31, thereby enabling the movable shutter 40 to rotate about the housing 30. When the rotating member rotates, the movable pin moves within the slide slot, driving the movable shutter along the slide slot while simultaneously rotating the movable shutter about the locating pin and around the housing. As each movable shutter simultaneously moves around the housing, the size of the light aperture formed by the central position of the movable shutter changes. When the inclined surfaces on the front ends of all the movable shutters combine, a polygonal aperture is formed, while when the arc-shaped notches on the front ends of all the movable shutters combine, a circular aperture is formed, thereby achieving the purpose of adjusting the lens aperture size. However, locating holes may be provided in the housing, and locating pins may be provided on the movable shutters, or the housing and movable shutters may be connected using other pin-connected methods without departing from the scope of the present invention.

[0039] Furthermore, the lens aperture adjustment device may also be provided with an anti-wear member, which is arranged below the light shielding member to prevent friction between the movable shielding plate and the lens. Preferably, the anti-wear member is provided in a circular ring shape and includes an outer peripheral portion and an inner peripheral portion, wherein the thickness of the outer peripheral portion is thicker than the thickness of the inner peripheral portion. Further preferably, the anti-wear member may also be provided to include a middle ring portion located between the outer peripheral portion and the inner peripheral portion, wherein the thickness of the middle ring portion is less than the thickness of the outer peripheral portion and greater than the thickness of the inner peripheral portion. Figure 1 and Figure 2As shown, the lens aperture adjustment device is further provided with a wear-resistant member 50, which is arranged below the light shielding member. The wear-resistant member 50 has a through hole that cooperates with the lens and is annular and includes an inner peripheral portion 51, a middle ring portion 52, and an outer peripheral portion 53. The thickness of the inner peripheral portion 51, the middle ring portion 52, and the outer peripheral portion 53 gradually increases. Through this arrangement, the upper end surface of the outer peripheral portion contacts the lower end surface of the light shielding member, which can prevent the light shielding member from wearing the lens. Those skilled in the art can arrange it according to actual needs. It should be understood by those skilled in the art that the wear-resistant member is not limited to being arranged as an inner peripheral portion, a middle ring portion, and an outer peripheral portion with thickness gradually increasing. It can also be arranged as only an inner peripheral portion and an outer peripheral portion, with the inner peripheral portion being thinner than the outer peripheral portion. In addition, the wear-resistant member can be arranged so that the thickness gradually increases from the inner peripheral portion to the outer peripheral portion. The shape of the wear-resistant member is not limited to annular. It is within the scope of the present invention as long as the wear-resistant member can prevent friction between the movable shutter and the lens.

[0040] In another embodiment, the driving module may include a driving magnet and a driving coil, a plurality of magnet mounting slots are provided at the bottom of the rotating member, the driving magnets are provided in the magnet mounting slots, and the driving coil is provided on the base and arranged below the driving magnets to cooperate with them. Figure 2 and Figure 5 Four drive coils 11 are evenly arranged on the upper surface of the base 10. Eight magnet mounting slots (not shown) are provided on the lower surface of the rotating member 20. Eight drive magnets 21 are provided in the magnet mounting slots, with one drive coil 11 corresponding to every two drive magnets 21. When the drive coils 11 are energized, the drive magnets 21 drive the rotating member 20 to begin rotating, thereby driving the light shielding member to adjust the opening size of the lens avoidance hole. It should be understood that six drive magnets can be provided and three drive coils can be provided, and is not limited to eight drive magnets and four drive coils. The number of magnet mounting slots can also be set to six, and is not limited to eight, without departing from the scope of the present invention. Those skilled in the art can arrange them according to actual needs. The drive coils are not limited to being provided on the base. The drive coils can be provided on the housing, and the drive magnets can be provided on the outer periphery of the rotating member at positions corresponding to the drive coils, without departing from the scope of the present invention.

[0041] Furthermore, a built-in circuit board may be provided in the base of the lens aperture adjustment device, and the built-in circuit board is electrically connected to the drive coil and supplies power to the drive coil. Figure 2As shown, the base of the lens aperture adjustment device includes an internal circuit board (not shown). The internal circuit board is electrically connected to the drive coil 11 and provides power to the drive coil 11. When the internal circuit board energizes the drive coil 11, the drive magnet 21 drives the rotating member 20 to begin rotating, thereby driving the light shielding member to adjust the opening size of the lens avoidance hole. It should be understood that the internal circuit board can also be disposed on the upper surface of the base and connected to the drive coil without departing from the scope of the present invention. It only needs to be able to connect the internal circuit board to the drive coil and energize it. Persons skilled in the art can make this arrangement according to actual needs.

[0042] Furthermore, the built-in circuit board is also provided with a position sensor, which cooperates with the driving magnet to detect the position of the rotating part. Preferably, the driving module also includes an inductive magnet, which is provided on the surface of the rotating part facing the base, and a position sensor corresponding to the inductive magnet is provided on the surface of the built-in circuit board facing the rotating part. Specifically, Figure 2 As shown, a position sensor 12 is provided on the built-in circuit board, and an induction magnet (not shown) is provided on the lower surface of the rotating part 20 at the corresponding position of the position sensor 12. The induction magnet and the position sensor cooperate with each other. When the circuit board energizes the driving coil, the driving magnet generates electromagnetic induction to drive the rotation of the rotating part. At the same time, the induction magnet also changes with the rotation of the rotating part and the distance between the position sensor. The magnetic field change is converted into an electrical signal, and the position sensor can sense the rotation information of the rotating part. In addition, those skilled in the art can also use the driving magnet 21 as an induction magnet by enlarging the volume, so there is no need to set up a special induction magnet. Those skilled in the art can make settings as needed, and the above technical solutions do not depart from the scope of the present invention.

[0043] In another embodiment, at least one limiting protrusion may be provided on the inner side wall of the housing, and at least one limiting groove corresponding to the limiting protrusion may be provided on the outer side wall of the rotating member. The limiting protrusion cooperates with the limiting groove to limit the rotation range of the rotating member. Figure 2 and Figure 4 As shown, four limiting protrusions 32 are evenly arranged on the inner side wall of the housing, and four limiting grooves 22 corresponding to the limiting protrusions 32 are arranged on the outer side wall of the rotating member 20. The limiting grooves 22 are also evenly distributed around the outer circumference of the rotating member 20. The length of the limiting grooves 22 is greater than the width of the limiting protrusions 32, so that the limiting protrusions 32 can move within the limiting grooves 22. The limiting protrusions 32 cooperate with the limiting grooves 22 to limit the rotation range of the rotating member 20. The rotation range of the rotating member 20 is the range within which the limiting protrusions 32 can move within the limiting grooves 22. It should be understood that the limiting grooves and limiting protrusions can also be provided as one, two, three, or more than four without departing from the scope of the present invention. Those skilled in the art can make arrangements according to actual needs.

[0044] In another embodiment, the rotating member and the base may be provided with at least one pair of oppositely disposed grooves, with balls disposed between the oppositely disposed grooves, and the balls may move in the grooves. Figure 2 and Figure 5 As shown, the rotating member and base 10 are provided with four pairs of opposing grooves 13. A ball 14 is positioned between each pair of opposing grooves 13. Balls 14 can move within the grooves 13. When the rotating member 20 is placed on the base 10 and rotates, the balls 14 roll within the grooves 13, reducing friction between the rotating member 20 and the base 10. Those skilled in the art may adjust the arrangement based on actual needs. It should be understood that the number of opposing grooves on the rotating member and base is not limited to four pairs.

[0045] Furthermore, the groove may be provided with a limiting column at at least one end. Preferably, the height of the limiting column is less than the distance between the rotating member and the base. Figure 2 As shown, a stopper post 15 is provided at one end of the groove 13. The height of the stopper post 15 is less than the distance between the rotating member 20 and the base 10. The stopper post prevents the ball bearings from disengaging from the oppositely disposed grooves during rotation of the rotating member, thereby improving the performance. Those skilled in the art may adjust the arrangement based on actual needs.

[0046] The lens aperture adjustment device can also be provided with a top cover, a light shielding member is provided between the top cover and the housing, and the top cover is provided with a light shielding hole that cooperates with the lens. Figure 1 and Figure 2 As shown, the lens aperture adjustment device can also be provided with a top cover 60, and the shading member is provided between the top cover 60 and the outer shell 30. The top cover 60 is provided with a shading hole that cooperates with the lens. Those skilled in the art can set it according to actual needs.

[0047] The above embodiments are merely illustrative of the preferred embodiments of the present application and are not intended to limit the scope of the present application.

[0048] The present invention provides a lens aperture adjustment device that solves the existing problems of electronic devices' apertures failing to shield the lens and their unchangeable aperture size. Compared with similar domestic research and product achievements, the lens aperture adjustment device of this application has the following beneficial technical effects:

[0049] First, an aperture adjustment device for an electronic device with variable aperture size is provided.

[0050] Second, reduce the size of the aperture adjustment device on the electronic device.

[0051] While the preferred embodiments of the present invention have been described in detail above, it should be understood that, after reading the above teachings of the present invention, those skilled in the art may make various changes or modifications to the present invention. Such equivalents also fall within the scope of the claims appended hereto.

Claims

1. A lens aperture adjustment device, characterized in that: The lens aperture adjustment device includes a base, a rotating member, a shell, a driving module and a shading member. The base, the rotating member and the shell are provided with a lens avoidance hole that cooperates with the lens. The shell is installed on the base and forms an active space between the shell and the base. The rotating member is rotatably installed in the active space. The driving module is arranged between the base and the rotating member and is used to drive the rotating member to move. The shading member includes a plurality of movable shutters and is rotatably installed in the active space. The adjacent movable shutters are stacked in sequence in a ring-shaped arrangement. A light-through hole is formed in the middle of the movable shutter, and the light-shielding member is provided on the housing and cooperates with the rotating member to adjust the opening size of the lens avoidance hole when the rotating member rotates; the movable shutter has a rear end connected to the housing and a front end opposite to the rear end, the front end is provided with an inclined surface, and one end of the inclined surface is provided with an arc notch, and the plurality of movable shutters are driven to rotate simultaneously by the rotating member, and when the inclined surfaces of the plurality of movable shutters are combined with each other, a large polygonal aperture is formed, and when the arc notches in the plurality of movable shutters are combined with each other, a small aperture is formed; The lens aperture adjustment device further includes an anti-wear member, which is arranged below the light shielding member to prevent the movable shield from rubbing against the lens; The anti-wear part is in a circular ring shape and includes an outer peripheral portion and an inner peripheral portion, wherein the thickness of the outer peripheral portion is greater than the thickness of the inner peripheral portion. The anti-wear part also includes a middle ring portion located between the outer peripheral portion and the inner peripheral portion, and the thickness of the middle ring portion is less than the thickness of the outer peripheral portion and greater than the thickness of the inner peripheral portion.

2. The lens aperture adjustment device according to claim 1, characterized in that: The movable shutter is provided with a slide groove, and the rotating member is provided with a movable pin corresponding to the slide groove. The slide groove and the movable pin cooperate to drive the movable shutter to move along the slide groove when the rotating member rotates.

3. The lens aperture adjustment device according to claim 2, characterized in that: The movable shutter is further provided with a positioning pin hole, which is arranged behind the slide groove, and the housing is provided with a positioning pin and is connected to the positioning pin hole through the positioning pin.

4. The lens aperture adjustment device according to claim 1, wherein: The driving module includes a driving magnet and a driving coil. A plurality of magnet mounting grooves are provided at the bottom of the rotating part. The driving magnet is arranged in the magnet mounting grooves. The driving coil is provided on the base and arranged below the driving magnet to cooperate with the driving magnet.

5. The lens aperture adjustment device according to claim 4, characterized in that: A built-in circuit board is provided in the base, and the built-in circuit board is electrically connected to the driving coil and supplies power to the driving coil.

6. The lens aperture adjustment device according to claim 5, characterized in that: The built-in circuit board is further provided with a position sensor, and the position sensor cooperates with the driving magnet to detect the position of the rotating member.

7. The lens aperture adjustment device according to claim 6, characterized in that: The driving module further includes an inductive magnet, which is provided on a surface of the rotating member facing the base, and a position sensor corresponding to the inductive magnet is provided on a surface of the built-in circuit board facing the rotating member.

8. The lens aperture adjustment device according to claim 1, wherein: At least one limiting protrusion is provided on the inner side wall of the shell, and at least one limiting groove corresponding to the limiting protrusion is provided on the outer side wall of the rotating member. The limiting protrusion cooperates with the limiting groove to limit the rotation range of the rotating member.

9. The lens aperture adjustment device according to claim 1, wherein: At least one pair of oppositely arranged grooves are provided on the rotating member and the base, and a ball is provided between the oppositely arranged grooves, and the ball can move in the groove.

10. The lens aperture adjustment device according to claim 9, characterized in that: At least one end portion of the groove is provided with a limiting column, and the limiting column prevents the ball from escaping from the groove when the rotating member rotates.

11. The lens aperture adjustment device according to claim 10, wherein: The height of the limiting column is smaller than the distance between the rotating member and the base.

12. The lens aperture adjustment device according to claim 1, wherein: The lens aperture adjustment device further comprises a top cover, the light shielding member is arranged between the top cover and the shell, and the top cover is provided with a light shielding hole matched with the lens.

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