Lens aperture adjusting device

Abstract

The invention provides a lens aperture adjusting device. The lens aperture adjusting device comprises a top cover, a fixed seat, a movable seat, at least two aperture adjusting assemblies and a driving assembly. The fixed seat is arranged below the top cover, the top end of the fixed seat is fixedly connected with the top cover, and a movable space is formed after connection; the movable seat is arranged in the movable space and arranged on the fixed seat in a sleeving mode. The upper end face of the movable seat is flush with the upper end face of the fixed seat, and the movable seat can rotate around the fixed seat. The at least two aperture adjusting assemblies are arranged in the movable space and are provided with at least two aperture holes with adjustable sizes, and the at least two aperture adjusting assemblies are sequentially stacked on the movable seat and are respectively connected with the movable seat and the fixed seat; the driving assembly is arranged between the fixed seat and the movable seat, and the driving assembly drives the movable seat to rotate around the fixed seat and drives the at least two aperture adjusting assemblies to rotate relatively. The device provided by the invention can realize the adjustment of different gear apertures of the lens, and can ensure the overall stability of the device in the aperture adjustment process at the same time.

Description

Technical Field

[0001] The invention relates to the field of optical technology, 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 picture by reducing the aperture, and in places with insufficient light, the amount of light entering can be increased by increasing the aperture, so that a pure picture with higher exposure and lower noise can be obtained. In the field of electronic equipment, the camera of general electronic equipment cannot change the aperture size, so it is impossible to adapt to various shooting environments by changing the aperture. This has caused many electronic devices to be overexposed outdoors in strong sunlight, and underexposed when shooting at night, with dark pictures, high noise, and loss of details. In addition, when using some existing aperture adjustment devices to adjust the aperture, it is often necessary to adjust repeatedly, resulting in low adjustment efficiency. At the same time, the stability of the device itself is poor during the adjustment process, and the accuracy of the aperture adjustment cannot be guaranteed. Summary of the invention

[0003] The technical problem to be solved by the present invention is to provide a lens aperture adjustment device to achieve adjustment of the lens aperture at different gears, while ensuring the overall stability of the device during the aperture adjustment process.

[0004] In order to solve the above technical problems, an embodiment of the present invention provides a lens aperture adjustment device, comprising:

[0005] Top cover;

[0006] A fixing seat, the fixing seat is arranged below the top cover, the top end of the fixing seat is fixedly connected to the top cover and forms an activity space after the connection;

[0007] A movable seat, the movable seat is arranged in the movable space and sleeved on the fixed seat, the upper end surface of the movable seat is flush with the upper end surface of the fixed seat and the movable seat can rotate around the fixed seat;

[0008] At least two aperture adjustment components, at least two of which have aperture holes with at least two adjustable sizes, at least two of which are arranged in the movable space, and at least two of which are sequentially stacked on the movable seat and respectively connected to the movable seat and the fixed seat; and

[0009] A driving assembly is arranged between the fixed seat and the movable seat, and the driving assembly drives the movable seat to rotate around the fixed seat and drives at least two aperture adjustment assemblies to rotate relative to each other, so as to adjust the aperture of the lens to different sizes.

[0010] In one embodiment, at least two of the aperture adjustment components include:

[0011] A first aperture adjustment component, which is disposed below the top cover and is connected to the movable seat and the fixed seat respectively;

[0012] a second aperture adjustment component, which is disposed below the first aperture adjustment component and is connected to the movable seat and the fixed seat respectively; and

[0013] A third aperture adjustment component is disposed between the first aperture adjustment component and the second aperture adjustment component and is connected to the fixing seat.

[0014] In one embodiment, the first aperture adjustment component comprises:

[0015] Multiple first blades are arranged in a clockwise direction below the top cover, and the first end of each of the multiple first blades is respectively connected to the movable seat and the fixed seat, and the second end of each of the multiple first blades is provided with a first arc-shaped groove.

[0016] In one embodiment, the second aperture adjustment component comprises:

[0017] Multiple second blades are arranged counterclockwise below the multiple first blades, and one end of each of the multiple second blades is respectively connected to the movable seat and the fixed seat, and the other end of each of the multiple second blades is provided with a second arc-shaped groove.

[0018] In one embodiment, the third aperture adjustment component includes:

[0019] A third blade is disposed between the plurality of first blades and the plurality of second blades and is fixedly connected to the fixing seat.

[0020] In one embodiment, a first pin hole connected to the upper end surface of the fixed seat is formed on one side of the first end of each of the plurality of first blades, and a first movable hole movably connected to the upper end surface of the movable seat is formed on the other side of the first end of each of the first blades;

[0021] A second pin hole connected to the upper end pin of the fixed seat is provided on one side of the first end of each of the plurality of second blades, and a second movable hole movably connected to the upper end of the movable seat is provided on the other side of the first end of each of the plurality of second blades.

[0022] In one embodiment, a plurality of movable columns are provided on the upper end surface of the movable seat, and the plurality of movable columns are arranged along the outer edge of the upper end surface of the movable seat and are movably connected with the first movable hole and the second movable hole respectively; and before the aperture is adjusted, the plurality of movable columns are located at the overlapping position of the first movable hole and the second movable hole.

[0023] In one embodiment, the fixing seat comprises:

[0024] Base;

[0025] Fixed protrusions, the fixed protrusions are arranged in pairs and symmetrically on both sides of the edge of the base, and the top ends of the fixed protrusions are fixedly connected to the edge of the top cover; and

[0026] A supporting protrusion is provided on the base and arranged in the ring area formed by the fixing protrusion. The supporting protrusion is sleeved in the movable seat and the upper end surface of the supporting protrusion is flush with the upper end surface of the movable seat.

[0027] In one embodiment, an elastic member is provided between the movable seat and the supporting protrusion.

[0028] In one embodiment, a stepped structure is provided inside the fixing protrusion, and a ball is provided inside the stepped structure of a pair of fixing protrusions on one side.

[0029] In one embodiment, a limiting groove is provided on the edge of the movable seat, the number and position of the limiting grooves correspond to the fixed protrusions, and a baffle protrusion is provided at the inner bottom end of the limiting groove located on one side of the edge of the movable seat, the position of the baffle protrusion corresponds to the ball and is used to cover the side of the ball.

[0030] In one embodiment, the lens aperture adjustment device further includes:

[0031] A magnetic attraction component is arranged on the fixed seat; when at least two of the aperture adjustment components rotate, under the action of the adsorption force generated by the magnetic attraction component and the driving component, the movable seat approaches the direction of the ball until the outer wall of one side of the movable seat abuts against the ball.

[0032] The above solution of the present invention includes at least the following beneficial effects:

[0033] The lens aperture adjustment device provided by the above scheme of the present invention includes: a top cover, a fixed seat, a movable seat, at least two aperture adjustment components and a driving component. The fixed seat is arranged below the top cover, and the top end of the fixed seat is fixedly connected to the top cover and forms an activity space after the connection; the movable seat is arranged in the activity space and sleeved on the fixed seat, the upper end surface of the movable seat is flush with the upper end surface of the fixed seat and the movable seat can rotate around the fixed seat; at least two of the aperture adjustment components have at least two aperture holes with adjustable sizes, at least two of the aperture adjustment components are arranged in the activity space, and at least two of the aperture adjustment components are sequentially stacked on the movable seat and respectively connected to the movable seat and the fixed seat; the driving component is arranged between the fixed seat and the movable seat, and the driving component drives the movable seat to rotate around the fixed seat and drives at least two of the aperture adjustment components to rotate relative to each other, so as to adjust the aperture of the lens to different sizes, thereby adjusting the aperture of the lens at different gears, and at the same time, the overall stability of the device during the aperture adjustment process can be ensured. BRIEF DESCRIPTION OF THE DRAWINGS

[0034] Figure 1 is an exploded diagram of a lens aperture adjustment device provided by an embodiment of the present invention;

[0035] Figure 2 is a schematic diagram of the three-dimensional structure of a lens aperture adjustment device provided by an optional embodiment of the present invention;

[0036] Figure 3 is a cross-sectional view of a lens aperture adjustment device provided by an optional embodiment of the present invention;

[0037] Figure 4 It is a schematic diagram of a three-dimensional structure in which a plurality of second blades are connected to a movable seat and a fixed seat according to an optional embodiment of the present invention;

[0038] Figure 5 is a schematic diagram of a plurality of first blades in an open state provided by an optional embodiment of the present invention;

[0039] Figure 6 is a schematic diagram of a plurality of first blades in a closed state provided by an optional embodiment of the present invention;

[0040] Figure 7 It is a schematic diagram of a three-dimensional structure in which a plurality of second blades are connected to a movable seat and a fixed seat according to an optional embodiment of the present invention;

[0041] Figure 8 is a schematic diagram of a plurality of second blades in an open state provided by an optional embodiment of the present invention;

[0042] Fig. 9is a schematic diagram of a plurality of second blades in a closed state provided by an optional embodiment of the present invention;

[0043] Fig.10 It is a schematic diagram of a three-dimensional structure of a third blade connected to a movable seat and a fixed seat provided by an optional embodiment of the present invention;

[0044] Fig.11 is a schematic diagram of the three-dimensional structure of a third blade provided by an optional embodiment of the present invention;

[0045] Fig.12 It is a schematic diagram of a three-dimensional structure of the installation of a movable seat and a fixed seat provided by an optional embodiment of the present invention;

[0046] Fig.13 It is a top view of the installation of the movable seat and the fixed seat provided by an optional embodiment of the present invention;

[0047] Fig.14 is an exploded view of an elastic member installed between a movable seat and a fixed seat provided in an optional embodiment of the present invention;

[0048] Fig.15 It is a schematic diagram of the three-dimensional structure of a fixing base provided by an optional embodiment of the present invention;

[0049] Fig.16 is a schematic diagram of the three-dimensional structure of a movable seat provided by an optional embodiment of the present invention from another perspective;

[0050] Fig.17 It is a schematic diagram of the three-dimensional structure of a circuit board provided by an optional embodiment of the present invention;

[0051] Fig.18 It is a schematic diagram of the three-dimensional structure of a top cover provided by an optional embodiment of the present invention.

[0052] Description of Figure Numbers:

[0053] 100. Lens aperture adjustment device;

[0054] 1. Top cover: 11. First light hole;

[0055] 2. Fixed seat; 20. Base; 21. Fixed protrusion; 22. Support protrusion; 221. Pin column; 222. Second light hole; 223. Side magnetic sheet mounting groove; 224. First mounting groove; 23. Ball bearing; 24. Bottom magnetic sheet; 25. Bottom magnetic sheet mounting groove;

[0056] 3. movable seat; 31. movable column; 32. limit groove; 33. baffle protrusion; 34. third light hole; 35. second mounting groove;

[0057] 4. first blade; 41. first pin hole; 42. first movable hole; 43. first arc-shaped groove; 44. first aperture hole;

[0058] 5. second blade; 51. second pin hole; 52. second movable hole; 53. second arc-shaped groove; 54. second aperture hole;

[0059] 6. third blade; 61. third pin hole; 62. third aperture hole;

[0060] 7. Magnet; 8. Circuit board; 9. Elastic part. DETAILED DESCRIPTION

[0061] The exemplary embodiments of the present disclosure will be described in more detail below with reference to the accompanying drawings. Although the exemplary embodiments of the present disclosure are shown in the accompanying drawings, it should be understood that the present disclosure can be implemented in various forms and should not be limited by the embodiments set forth herein. On the contrary, these embodiments are provided to enable a more thorough understanding of the present disclosure and to fully convey the scope of the present disclosure to those skilled in the art.

[0062] In the following description, certain specific details are set forth for the purpose of illustrating the various disclosed embodiments 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 the present application may not be shown or described in detail to avoid unnecessarily obscuring the description of the embodiments.

[0063] References throughout the specification to "one embodiment" or "an embodiment" indicate 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 the 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.

[0064] 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 the words "front", "back", "left", "right", "outside", "inside", "outward", "inward", "up", "down", etc. should be understood as convenient terms and should not be understood as restrictive terms.

[0065] like Figures 1 to 3As shown, an embodiment of the present invention proposes a lens aperture adjustment device 100, which may include a top cover 1, a fixed seat 2, a movable seat 3, at least two aperture adjustment components and a driving component. The fixed seat 2 is arranged below the top cover 1, and the top end of the fixed seat 2 is fixedly connected to the top cover 1 and forms an activity space after the connection; the movable seat 3 is arranged in the activity space and sleeved on the fixed seat 2, the upper end surface of the movable seat 3 is flush with the upper end surface of the fixed seat 2, and the movable seat 3 can rotate around the fixed seat 2; at least two aperture adjustment components have at least two aperture holes with adjustable sizes, at least two aperture adjustment components are arranged in the activity space, and at least two aperture adjustment components are sequentially stacked on the movable seat 3 and are respectively connected to the movable seat 3 and the fixed seat 2; the driving component is arranged between the fixed seat 2 and the movable seat 3, and the driving component drives the movable seat 3 to rotate around the fixed seat 2 and drives at least two aperture adjustment components to rotate relative to each other, so as to adjust the aperture of the lens to different sizes.

[0066] In this embodiment, the top cover 1, at least two aperture adjustment components, the movable seat 3, the driving component and the fixed seat 2 are coaxially arranged in sequence, and the top end of the fixed seat 2 is fixedly connected to the top cover 1, and a movable space is formed after the connection to accommodate at least two aperture adjustment components, the movable seat 3 and the driving component; in actual application, the fixed seat 2 is fixed to the housing of the lens motor, and the center positions of the fixed seat 2, the movable seat 3 and the top cover 1 all correspond to the lens on the lens motor; the movable seat 3 is driven by the driving component to rotate around the fixed seat 2 in the movable space formed by the fixed seat 2 and the top cover 1 and drive the at least two aperture adjustment components to rotate;

[0067] Preferably, if Figure 1 and Fig.18 As shown, a first light hole 11 is opened at the center of the top cover 1; Fig.14 As shown, a third light hole 34 is opened at the center of the movable seat 3, and a second light hole 222 is opened at the center of the fixed seat 2; each of the at least two aperture adjustment components corresponds to an aperture hole, and the size of the aperture hole changes with the rotation of the aperture adjustment component; when the top cover 1, at least two aperture adjustment components, the movable seat 3 and the fixed seat 2 are stacked, the first light hole 11, the aperture hole, the third light hole 34 and the second light hole 222 are coaxially stacked and form a lens avoidance hole of the lens motor, wherein the first light hole 11 is the same size as the second light hole 222; when the driving component drives the movable seat 3 to rotate in the movable space, the movable seat 3 drives at least two aperture adjustment components to rotate, and the size of the aperture hole will change. Since the aperture hole covers the third light hole 34 and the second light hole 222, when shooting, the light beam passes through the first light hole 11, the aperture hole and the second light hole 222 in sequence. When the size of the aperture hole changes, the size of the light beam after passing through the first light hole 11 will also change accordingly, thereby achieving the shielding of the lens and the adjustment of the lens aperture;

[0068] In the process of the movable seat 3 driving at least two aperture adjustment components to rotate, since the rotation directions of the at least two aperture adjustment components are opposite, the adjustment of the corresponding aperture hole sizes is opposite. By rotating the movable seat 3 in different directions to switch the aperture holes of the corresponding aperture components with corresponding sizes, the aperture sizes of lenses with different specifications can be adjusted. At the same time, repeated adjustment of the aperture in one direction can also be avoided, thereby ensuring the accuracy and convenience of the lens aperture adjustment.

[0069] In an optional embodiment of the present invention, the at least two aperture adjustment components may include a first aperture adjustment component, a second aperture adjustment component and a third aperture adjustment component. The first aperture adjustment component is arranged below the top cover 1 and is connected to the movable seat 3 and the fixed seat 2 respectively; the second aperture adjustment component is arranged below the first aperture adjustment component and is connected to the movable seat 3 and the fixed seat 2 respectively; the third aperture adjustment component is arranged between the first aperture adjustment component and the second aperture adjustment component and is connected to the fixed seat 2.

[0070] In this embodiment, one side of the first aperture adjustment component and one side of the second aperture body adjustment component are both movably connected to the top of the movable seat 3, and the other side of the first aperture adjustment component and the other side of the second aperture body adjustment component are both connected to the pin shaft at the top of the fixed seat 2, so that the movable seat 3 can drive the first aperture component and the second aperture component to rotate around the fixed seat 2; the third aperture adjustment component is arranged between the first aperture adjustment component and the second aperture adjustment component, and the edge of the third aperture adjustment component is fixedly connected to the top of the fixed seat 2, and the third aperture adjustment component is fixed during the rotation of the movable seat 3;

[0071] Here, the aperture hole of the first aperture adjustment component is smaller than the aperture hole of the second aperture adjustment component, the aperture hole of the second aperture adjustment component is smaller than the aperture hole of the third aperture adjustment component, and the aperture holes of the first aperture adjustment component and the second aperture adjustment component will change in size when the corresponding aperture adjustment component rotates, and the process of changing the size of the aperture holes of the first aperture adjustment component and the second aperture adjustment component is opposite, and the aperture hole size of the third aperture adjustment component is fixed;

[0072] Specifically: when the movable seat 3 rotates clockwise and drives the first aperture adjustment component to rotate and close, a small aperture hole is formed. During the entire clockwise rotation process of the movable seat 3, the second aperture adjustment component is simultaneously driven to rotate and open to achieve the adjustment of the small aperture of the lens; when the movable seat 3 rotates counterclockwise and drives the second aperture adjustment component to rotate and close, a medium aperture hole is formed. During the entire counterclockwise rotation process of the movable seat 3, the first aperture adjustment component is simultaneously driven to rotate and open to achieve the adjustment of the medium aperture of the lens; when the movable seat 3 drives the first aperture adjustment component and the second aperture adjustment component to rotate to a preset position When the first aperture adjustment component and the second aperture adjustment component are both in the open state, the aperture hole corresponding to the third aperture adjustment component is used as the large aperture hole (it should be known that at this time, the first aperture adjustment component and the second aperture adjustment component are in a non-fully open state, and at this time, the aperture holes corresponding to the first aperture adjustment component and the second aperture adjustment component are larger than the aperture hole of the third aperture adjustment component with a fixed size), so as to achieve the adjustment of the large aperture of the lens; the adjustment of the aperture of the lens aperture hole to different gear sizes is achieved by the clockwise movement, counterclockwise movement, and rotation to the preset position of the movable seat 3;

[0073] In other design schemes, the up-and-down order of the three aperture adjustment components can be changed. At the same time, it should be noted that when the first aperture adjustment component is rotated and closed to form a small aperture hole and the second aperture adjustment component is rotated and closed to form a medium aperture hole, some components in the corresponding aperture adjustment components will partially overlap; therefore, the first aperture adjustment component and the second aperture adjustment component are both stacked up and down to avoid mutual obstruction when they are rotating and closing.

[0074] See also Figures 4 to 6 In an optional embodiment of the present invention, the first aperture adjustment assembly may include a plurality of first blades 4. The plurality of first blades 4 are arranged in a clockwise direction below the top cover 1, and the first end of each of the plurality of first blades 4 is respectively connected to the movable seat 3 and the fixed seat 2, and the second end of each of the plurality of first blades 4 is provided with a first arc-shaped groove 43.

[0075] In this embodiment, a plurality of first blades 4 are arranged in an annular shape on the movable seat 3 and the fixed seat 2; here, the clockwise annular arrangement is specifically manifested as: the second end of any first blade is stacked on the first end of the first blade adjacent thereto, so that when the movable seat 3 rotates clockwise, the plurality of first blades 4 are driven to rotate and close;

[0076] The first end of each of the plurality of first blades 4 is movably connected to the movable seat 3 and is pin-connected to the fixed seat 2; the second end of each of the plurality of first blades 4 is staggered and overlapped at the center of the fixed seat 2 and corresponds to the lens on the lens motor. When the movable seat 3 drives the plurality of first blades 4 to rotate and close, the first arc-shaped groove 43 at the second end of each of the plurality of first blades 4 surrounds and forms a first aperture hole 44 with the smallest size, such as Figure 6 As shown, (in the process of rotational closing, the interlaced and overlapped parts of the second ends gradually increase, and the aperture hole size formed by the second ends gradually decreases to obtain the first aperture hole 44 with the smallest size; in the process of the movable seat 3 driving the multiple first blades 4 to rotate and open, the interlaced and overlapped parts of the second ends decrease, and the aperture hole size formed by the second ends gradually increases, as shown in FIG. Figure 5 to facilitate adjustment of the small aperture of the lens.

[0077] Further, such as Figure 5 As shown, in an optional embodiment of the present invention, a first pin hole 41 connected to the upper end surface of the fixed seat 2 is provided on one side of the first end of each of the multiple first blades 4, and a first movable hole 42 movably connected to the upper end surface of the movable seat 3 is provided on the other side of the first end of each first blade.

[0078] In this embodiment, the first pin hole 41 is opened on the inner side of the first end of the first blade 4 and is connected to the pin at the top of the fixed seat 2, and the first movable hole 42 is opened on the outer side of the first end of the first blade 4 and is movably connected to the top of the movable seat 3; preferably, the first movable hole 42 is set as an arc-shaped long strip hole; when the driving component drives the movable seat 3 and drives the multiple first blades 4 to rotate, since the inner side of the first blade 4 is connected to the pin of the fixed seat 2 through the first pin hole 41, at this time, the movable seat 3 will drive the first blade 4 to rotate around the fixed seat 2 within the size range of the arc path corresponding to the first movable hole 42; in the process of the movable seat 3 driving the first blade 4 to rotate, as the size of the arc path changes, the part of the adjacent two first blades 4 that are staggered and overlapped also changes accordingly, thereby changing the size of the aperture hole surrounded by the multiple first blades 4. When the size of the aperture hole surrounded by the multiple first blades 4 changes, the size of the light beam after passing through the first light hole 11 will also change when passing through the aperture hole surrounded by the multiple first blades 4, thereby realizing the blocking of the lens and the adjustment of the lens aperture.

[0079] See also Figures 7 to 9In an optional embodiment of the present invention, the second aperture adjustment assembly may include a plurality of second blades 5. The plurality of second blades 5 are arranged counterclockwise below the plurality of first blades 4, and one end of each of the plurality of second blades 5 is connected to the movable seat 3 and the fixed seat 2, respectively, and the other end of each of the plurality of second blades 5 is provided with a second arc-shaped groove 53.

[0080] In this embodiment, the plurality of second blades 5 are annularly arranged on the movable seat 3 and the fixed seat 2 and arranged below the plurality of first blades 4; here, the counterclockwise annular arrangement is specifically manifested as: the first end of any second blade is stacked on the second end of the second blade adjacent thereto, so that when the movable seat 3 rotates counterclockwise, the plurality of second blades 5 are driven to rotate and close;

[0081] The first end of each of the plurality of second blades 5 is movably connected to the movable seat 3 and is pin-connected to the fixed seat 2; the second end of each of the plurality of second blades 5 is staggered and overlapped at the center of the fixed seat 2 and corresponds to the lens on the lens motor. When the movable seat 3 drives the plurality of second blades 5 to rotate and close, the second arc-shaped groove 53 at the second end of each of the plurality of second blades 5 surrounds and forms a second aperture hole 54 of appropriate size, such as Fig. 9 As shown, (in the process of rotational closing, the interlaced and overlapped parts of the second ends gradually increase, and the size of the aperture hole formed by the second ends gradually decreases to obtain a second aperture hole 54 of appropriate size; in the process of the movable seat 3 driving the plurality of second blades 5 to rotate and open, the interlaced and overlapped parts of the second ends decrease, and the size of the aperture hole formed by the second ends gradually increases, as shown in FIG. Figure 8 As shown), in order to facilitate the adjustment of the size aperture of the lens;

[0082] Preferably, the size of the second arc groove 53 is larger than that of the first arc groove 43 , so that the second aperture hole 54 formed by the plurality of second blades 5 is larger than the first aperture hole 44 formed by the plurality of first blades 4 .

[0083] Preferably, a wear-resistant gasket is provided between the top of the fixing seat 2 and the second blade 5 to reduce the wear of the fixing seat 2 and the second blade 5; more preferably, a connecting hole and a light-transmitting circular hole matching the structure of the fixing seat 2 are provided on the gasket.

[0084] Further, such as Figure 8 As shown, in an optional embodiment of the present invention, a second pin hole 51 connected to the upper end surface of the fixed seat 2 is provided on one side of the first end of each of the multiple second blades 5, and a second movable hole 52 movably connected to the upper end surface of the movable seat 3 is provided on the other side of the first end of each second blade.

[0085] In this embodiment, the second pin hole 51 is opened on the inner side of the first end of the second blade 5 and is connected to the pin at the top of the fixed seat 2, and the second movable hole 52 is opened on the outer side of the first end of the second blade 5 and is movably connected to the movable seat 3; preferably, the second movable hole 52 is set as an arc-shaped long strip hole; when the driving component drives the movable seat 3 and drives the multiple second blades 5 to rotate, since the inner side of the second blade 5 is connected to the pin of the fixed seat 2 through the second pin hole 51, at this time, the movable seat 3 will drive the second blade 5 to rotate around the fixed seat 2 within the size range of the arc path corresponding to the second movable hole 52; in the process of the movable seat 3 driving the second blade 5 to rotate, as the size of the arc path changes, the part of the adjacent two second blades 5 that are staggered and overlapped also changes accordingly, thereby changing the size of the aperture hole surrounded by the multiple second blades 5. When the size of the aperture hole surrounded by the multiple second blades 5 changes, the size of the light beam after passing through the first light hole 11 will also change when passing through the aperture hole surrounded by the multiple second blades 5, thereby realizing the blocking of the lens and the adjustment of the lens aperture.

[0086] See also Figure 10 to Figure 11 In an optional embodiment of the present invention, the third aperture adjustment component may include a third blade 6. The third blade 6 is disposed between the plurality of first blades 4 and the plurality of second blades 5 and is fixedly connected to the fixing seat 2.

[0087] In this embodiment, the third blade 6 is an annular blade, and the central circular hole of the third blade 6 is located at the center position of the fixed seat 2 and corresponds to the lens on the lens motor. The central circular hole of the third blade 6 is used as a size to fix the third aperture hole 62, and the third aperture hole 62 is larger than the second aperture hole 54 formed by multiple second blades 5; when the movable seat 3 drives the multiple first blades 4 and the multiple second blades 5 to rotate to the preset position, the multiple first blades 4 and the multiple second blades 5 are all in an open state. At this time, the third aperture hole 62 serves as a large aperture hole to realize the adjustment of the large aperture of the lens; here, the preset position can be that the movable seat 3 rotates to the middle position of the first movable hole 42 and the middle position of the second movable hole 52 at the same time, and the first blade 4 and the multiple second blades 5 are both in a non-fully open state.

[0088] Preferably, if Fig.11 As shown, the third blade 6 is provided with a third pin hole 61 which is pin-connected to the upper end surface of the fixing seat 2 .

[0089] like Fig.12 As shown, in an optional embodiment of the present invention, a plurality of movable columns 31 are provided on the upper end surface of the movable seat 3, and the plurality of movable columns 31 are arranged along the outer edge of the upper end surface of the movable seat 3 and are movably connected with the first movable hole 42 and the second movable hole 52 respectively; and before the aperture is adjusted, the plurality of movable columns 31 are located at the overlapping position of the first movable hole 42 and the second movable hole 52.

[0090] In this embodiment, a plurality of movable columns 31 are arranged at the top of the movable seat 3, and the plurality of movable columns 31 are arranged around the top of the movable seat 3 and are movably connected with the first movable hole 42 and the second movable hole 52 respectively; when the movable seat 3 rotates, the movable columns 31 drive the plurality of first blades 4 and the plurality of second blades 5 to rotate around the fixed seat 2, so that the size of the aperture hole formed by the plurality of first blades 4 and the aperture hole formed by the plurality of second blades 5 change, thereby realizing the adjustment of the lens aperture size;

[0091] Before the aperture adjustment is performed, since the first blade 4 is overlapped on the second blade 5, the first movable hole 42 of the first blade 4 is also overlapped on the second movable hole 52 of the second blade 5 adjacent thereto, and the overlapped portion of the first movable hole 42 and the second movable hole 52 is the overlapping position of the first movable hole 42 and the second movable hole 52, and the overlapped portion of the first movable hole 42 and the second movable hole 52 are both the end positions of the first movable hole 42 and the second movable hole 52;

[0092] Before the clockwise rotation, since the plurality of second blades 5 are in a closed state (or in a semi-open state) and the plurality of first blades 4 are in an open state; therefore, when the aperture is adjusted, when the movable seat 3 rotates clockwise, the movable column 31 in the first movable hole 42 will push the plurality of first blades 4 to rotate around the fixed seat 2 to close, and form a first aperture hole 44 with the smallest size; during the entire clockwise rotation process of the movable seat 3, the movable column 31 in the second movable hole 52 will pull the plurality of second blades 5 in a closed state to rotate around the fixed seat 2 to open, thereby realizing the adjustment of the small aperture of the lens;

[0093] Before the counterclockwise rotation, since the plurality of second blades 5 are in an open state and the plurality of first blades 4 are in a closed state (or in a semi-open state); therefore, when adjusting the aperture, when the movable seat 3 rotates counterclockwise, the movable column 31 in the second movable hole 52 will push the plurality of second blades 5 to rotate around the fixed seat 2 to close, and form a second aperture hole 54 of a moderate size; during the entire counterclockwise rotation process of the movable seat 3, the movable column 31 in the first movable hole 42 will pull the plurality of first blades 4 in a closed state to rotate around the fixed seat 2 to open, thereby realizing the adjustment of the aperture in the lens;

[0094] When the movable seat 3 drives the multiple first blades 4 and the multiple second blades 5 to rotate to a preset position (clockwise or counterclockwise rotation is possible here, and the preset position may be that the movable column 31 is simultaneously in the middle position of the first movable hole 42 and the middle position of the second movable hole 52), the multiple first blades 4 and the multiple second blades 5 will all be in an open state, and the third aperture hole 62 of the third blade 6 will serve as a large aperture hole to achieve adjustment of the large aperture of the lens.

[0095] In an optional embodiment of the present invention, Fig.12 As shown, the fixed seat 2 may include a base 20, a fixed protrusion 21 and a supporting protrusion 22. The fixed protrusions 21 are arranged in pairs and symmetrically on both sides of the edge of the base 20, and the top of the fixed protrusion 21 is fixedly connected to the edge of the top cover 1; the supporting protrusion 22 is arranged on the base 20 and arranged in the ring area formed by the fixed protrusion 21, and the supporting protrusion 22 is sleeved in the movable seat 3 and the upper end surface of the supporting protrusion 22 is flush with the upper end surface of the movable seat 3.

[0096] In this embodiment, the base 20, the fixing protrusion 21 and the supporting protrusion 22 can be integrally formed to form the fixing base 2;

[0097] The fixing protrusions 21 are symmetrically arranged in pairs on both sides of the edge of the base 20; preferably, a fixing column can be arranged on the top of the fixing protrusion 21, and a fixing hole matching the fixing column can be opened on the edge of the top cover 11, and the position of the fixing hole corresponds to the position of the fixing column, and the top cover 1 is fixedly connected to the top of the fixing protrusion 21 through the fixing hole and the fixing column, and cooperates with the fixing protrusion 21 to form an activity space for accommodating multiple first blades 4, multiple second blades 5, third blades 6, movable seats 3 and drive components; at the same time, the top cover 1 covers the multiple first blades 4, multiple second blades 5, third blades 6, movable seats 3 and drive components, which can protect the various components in the activity space; here, the number of fixing protrusions is not limited, as long as it is ensured that the top cover 1 can be stably fixed on the base 20 and cooperate with the fixing protrusion to form an activity space;

[0098] like Fig.14 As shown, in an achievable example, four fixing protrusions 21 are provided on the edge of the base 20, among which the current fixing protrusion and the adjacent fixing protrusion form a group, and are symmetrical with another group of positions formed by the other two fixing protrusions; the arrangement of the four fixing protrusions enables only the edge of the movable seat 3 to contact the fixing protrusions on the edge of the base 20 during the rotation process of the movable seat 3, so as to reduce the contact surface between the movable seat 3 and the base 20;

[0099] The support protrusion 22 is arranged in the annular area formed by the fixed protrusion 21, and the support protrusion 22 is set to a cylindrical shape and is sleeved in the movable seat 3, so that the movable seat 3 can rotate around the support protrusion 22, and at the same time it is convenient to install and support multiple first blades 4, multiple second blades 5 and third blades 6, and the upper end surface of the support protrusion 22 is flush with the upper end surface of the movable seat 3 to ensure the stability of the multiple first blades 4 and the multiple second blades 5 during the rotation process, thereby ensuring the accuracy of the lens aperture adjustment.

[0100] In an optional embodiment of the present invention, Figures 12 to 14As shown, an elastic member 9 is arranged between the movable seat 3 and the supporting protrusion 22; preferably, a first mounting groove 224 for mounting one end of the elastic member 9 is opened at the top of the supporting protrusion 22, and a second mounting groove 35 for mounting the other end of the elastic member 9 is opened at the top of the movable seat 3; more preferably, the elastic member can be provided with a spring sheet, and after the movable seat 3 rotates, the elastic member 9 can achieve a reset effect.

[0101] In an optional embodiment of the present invention, Fig.12 and Fig.14 As shown, a plurality of pin columns 221 are arranged in a ring on the top end of the support protrusion 22, and each of the plurality of pin columns 221 is respectively connected to a pin on one side of each aperture adjustment component in at least two aperture adjustment components, specifically, respectively connected to the first pin holes 41 of the plurality of first blades 4, the second pin holes 51 of the plurality of second blades 5, and the third pin holes 61 of the third blade 6, so that the movable seat 3 can drive the plurality of first blades 4 and the plurality of second blades 5 to rotate around the pin column 221.

[0102] In an optional embodiment of the present invention, Figure 3 and 14 As shown, a step structure is provided inside the fixing protrusion 21, and a ball 23 is provided inside the step structure of a pair of fixing protrusions 21 on one side.

[0103] In this embodiment, a step structure is provided on the inner side of each fixed protrusion, and the step structure cooperates with the edge of the movable seat 3 to ensure the stability of the movable seat 3 during the rotation process;

[0104] Furthermore, a pair of fixed protrusions 21 on one side of the base 20 are provided with a stepped structure with balls 23 . The balls 23 are provided to assist the movable seat 3 in rotating and reduce the friction force when the movable seat 3 rotates relative to the fixed seat 2 .

[0105] In an optional embodiment of the present invention, the lens aperture adjustment device 100 may also include a magnetic suction component. The magnetic suction component is arranged on the fixed seat 2; when the movable seat 3 rotates, under the action of the adsorption force generated by the magnetic suction component and the driving component, the movable seat 3 approaches the ball 23 until the outer wall of one side of the movable seat 3 abuts against the ball 23 to assist the rotation of the movable seat 3. At the same time, the outer wall of one side of the movable seat 3 abuts against the ball 23, which can also reduce the contact area between the outer wall of one side of the movable seat 3 and the inner wall of one side of the fixed protrusion 21. In addition, the movable seat 3 approaches the ball 23, which also reduces the contact area between the outer wall of the other side of the movable seat 3 and the inner wall of the other side of the fixed protrusion 21, thereby reducing the friction force when the movable seat 3 rotates relative to the base 20.

[0106] In an optional embodiment of the present invention, Fig.16As shown, a limiting groove 32 is opened on the edge of the movable seat 3, the number and position of the limiting groove 32 correspond to the fixed protrusion 21, and a blocking piece protrusion 33 is set at the inner bottom end of the limiting groove located on one side of the edge of the movable seat 3, the position of the blocking piece protrusion 33 corresponds to the ball 23 and is used to cover the side of the ball 23.

[0107] In this embodiment, the limiting groove 32 can be set to a stepped structure, and the stepped structure of the limiting groove 32 cooperates with the stepped structure on the inner side of the fixed protrusion 21 to ensure the stability of the movable seat 3 during rotation; at the same time, the setting of the limiting groove 32 can achieve avoidance of the fixed protrusion 21; in addition, a baffle protrusion 33 is provided at the inner bottom end of the limiting groove 32 located on one side of the edge of the movable seat 3. In the process of the movable seat 2 rotating around the supporting protrusion 22, under the action of the magnetic suction component, the baffle protrusion 33 abuts against the side wall of the ball 23, thereby reducing the contact area between the edge of the movable seat 3 and the fixed protrusion 21, so as to reduce the friction when the movable seat 3 rotates relative to the fixed seat 2.

[0108] In an optional embodiment of the present invention, the magnetic attraction component may include a first magnetic attraction component arranged on the support protrusion 22 and opposite to the ball 23, and a second magnetic attraction component arranged at the bottom of the base 20; more preferably, the first magnetic attraction component is a side magnetic attraction plate arranged on the other side of the support protrusion 22; the second magnetic attraction component is an annular bottom magnetic attraction plate 24 arranged at the bottom of the base 20.

[0109] In this embodiment, if Fig.14 As shown, a side magnetic sheet installation groove 223 is provided on the other side of the support protrusion 22 and a side magnetic sheet is installed thereon, and the side magnetic sheet is arranged on the opposite side of the fixed protrusion on which the ball 23 is installed; preferably, the side magnetic sheet is a metal structure, which can generate a first adsorption force with the driving component, and when the driving component drives the movable seat 3 to rotate around the support protrusion 22, the movable seat 3 approaches the direction of the ball 23 under the action of the first adsorption force, and finally the edge of the movable seat 3 contacts the ball 23, so as to reduce the contact area between the edge of the movable seat 3 and the fixed protrusion 21, thereby reducing the friction force when the movable seat 3 rotates relative to the fixed seat 2;

[0110] At the same time, if Figure 3 and Fig.15As shown, a bottom magnetic sheet installation groove 25 is opened at the bottom of the base 20 and a bottom magnetic sheet 24 is installed. The bottom magnetic sheet 24 can generate a second adsorption force with the driving assembly. The second adsorption force makes the movable seat 3 approach downward and abut against the ball 23; under the action of the first adsorption force generated by the side magnetic sheet and the driving assembly and the second adsorption force generated by the bottom magnetic sheet 24 and the driving assembly, the movable seat 3 generates a radial force in the direction of the two balls 23 and squeezes the balls 23 downward, so that the movable seat 3 can completely rely on the two balls 23 to assist the rotation when rotating. Therefore, there is no need to set the balls in the stepped structure of the fixed protrusion on the other side to reduce the cost; in addition, the contact between the movable seat 3 and the ball 23 can reduce the contact area between the outer edge of the movable seat 3 and the inner wall of the fixed protrusion 21, thereby reducing the friction force when the movable seat 3 rotates.

[0111] When setting the magnetic sheet, the side magnetic sheet 24 and the bottom magnetic sheet 24 can be installed by opening installation grooves at the corresponding positions, or the side magnetic sheet and the bottom magnetic sheet 24 can be directly formed into an integrated structure during design and directly built into the fixing seat 2 during production of the fixing seat 2, and their positional relationship remains unchanged, so as to omit the installation process of the side magnetic sheet and the bottom magnetic sheet 24. In the embodiment of the present application, a side magnetic sheet installation groove 223 is set on the outer side wall of the support protrusion 22; Fig.14 As shown, preferably, the side magnetic sheet installation groove 223 is a constricted structure and the top end passes through the end wall of the top end of the supporting protrusion 22. During installation, the side magnetic sheet can be directly embedded into the side magnetic sheet installation groove 223 from the top end of the side magnetic sheet installation groove 223 to realize the installation operation of the side magnetic sheet.

[0112] In an optional embodiment of the present invention, Figure 16 to Figure 17 As shown, the driving assembly may include a magnet 7 and a circuit board 8. The magnet 7 is mounted on the bottom of the movable seat 3; the circuit board 8 is disposed below the movable seat 3 and sleeved on the support protrusion 22, and a coil is disposed in the circuit board 8. When power is supplied to the circuit board 8, the coil interacts with the magnet 7 and generates a driving force to drive the movable seat 3 to rotate.

[0113] In this embodiment, a magnet groove is provided at the bottom end of the movable seat 3 and a magnet 7 is installed thereon. A circuit board 8 is provided below the movable seat 3. The circuit board is preferably an FPC board. A coil is provided on the circuit board 8 and the coil is powered by the circuit board 8. The coil corresponds to the magnet 7 and the movable seat 3 is ordered to rotate under the cooperation of the two (the coil is energized to generate a magnetic field and acts with the magnet 7 to form a driving force to drive the movable seat 3 to rotate);

[0114] Preferably, a position sensor is provided at the bottom of the circuit board 8, and the position sensor can monitor the position of the magnet 7, thereby realizing the monitoring of the rotation position of the movable seat 3; more preferably, an avoidance groove is provided on the base 20 to avoid the installation of the position sensor.

[0115] The above is a preferred embodiment of the present invention. It should be pointed out that for ordinary technicians in this technical field, several improvements and modifications can be made without departing from the principles of the present invention. These improvements and modifications should also be regarded as the scope of protection of the present invention.

Claims

1. A lens aperture adjustment device, characterized in that: include: Top cover (1); A fixing seat (2), the fixing seat (2) being arranged below the top cover (1), the top end of the fixing seat (2) being fixedly connected to the top cover (1) and forming a movable space after the connection; A movable seat (3), the movable seat (3) being arranged in the movable space and sleeved on the fixed seat (2), the upper end surface of the movable seat (3) being flush with the upper end surface of the fixed seat (2) and the movable seat (3) being rotatable around the fixed seat (2); At least two aperture adjustment components, at least two of the aperture adjustment components have aperture holes of at least two adjustable sizes, at least two of the aperture adjustment components are arranged in the movable space, and at least two of the aperture adjustment components are sequentially stacked on the movable seat (3) and are respectively connected to the movable seat (3) and the fixed seat (2); as well as A driving assembly is arranged between the fixed seat (2) and the movable seat (3), and the driving assembly drives the movable seat (3) to rotate around the fixed seat (2) and drives at least two aperture adjustment assemblies to rotate relative to each other, so as to adjust the aperture of the lens to different sizes.

2. The lens aperture adjustment device according to claim 1, characterized in that: At least two of the aperture adjustment components include: A first aperture adjustment component, the first aperture adjustment component is arranged below the top cover (1) and is respectively connected to the movable seat (3) and the fixed seat (2); a second aperture adjustment component, the second aperture adjustment component being arranged below the first aperture adjustment component and being connected to the movable seat (3) and the fixed seat (2) respectively; and A third aperture adjustment component is arranged between the first aperture adjustment component and the second aperture adjustment component and is connected to the fixing seat (2).

3. The lens aperture adjustment device according to claim 2, characterized in that: The first aperture adjustment component comprises: A plurality of first blades (4) are arranged in a clockwise circular pattern below the top cover (1), and a first end of each of the plurality of first blades (4) is respectively connected to the movable seat (3) and the fixed seat (2), and a first arc-shaped groove (43) is formed at a second end of each of the plurality of first blades (4).

4. The lens aperture adjustment device according to claim 3, characterized in that: The second aperture adjustment component comprises: A plurality of second blades (5), wherein the plurality of second blades (5) are arranged in a counterclockwise direction below the plurality of first blades (4), and one end of each of the plurality of second blades (5) is respectively connected to the movable seat (3) and the fixed seat (2), and the other end of each of the plurality of second blades (5) is provided with a second arc-shaped groove (53).

5. The lens aperture adjustment device according to claim 4, characterized in that: The third aperture adjustment component comprises: A third blade (6), the third blade (6) is arranged between the plurality of the first blades (4) and the plurality of the second blades (5) and is fixedly connected to the fixing seat (2).

6. The lens aperture adjustment device according to claim 5, characterized in that: A first pin hole (41) is provided on one side of the first end of each of the plurality of first blades (4) and is connected to the upper end surface of the fixed seat (2) with a pin, and a first movable hole (42) is provided on the other side of the first end of each of the first blades and is movably connected to the upper end surface of the movable seat (3); A second pin hole (51) is provided on one side of the first end of each of the plurality of second blades (5) and is connected to the upper end surface of the fixed seat (2) with a pin, and a second movable hole (52) is provided on the other side of the first end of each of the plurality of second blades and is movably connected to the upper end surface of the movable seat (3).

7. The lens aperture adjustment device according to claim 6, characterized in that: The upper end surface of the movable seat (3) is provided with a plurality of movable columns (31), and the plurality of movable columns (31) are arranged along the outer edge of the upper end surface of the movable seat (3) and are movably connected to the first movable hole (42) and the second movable hole (52) respectively; and before the aperture is adjusted, the plurality of movable columns (31) are located at the overlapping position of the first movable hole (42) and the second movable hole (52).

8. The lens aperture adjustment device according to claim 1, characterized in that: The fixing seat (2) comprises: Base (20); Fixed protrusions (21), the fixed protrusions (21) are arranged in pairs and symmetrically on both sides of the edge of the base (20), and the top ends of the fixed protrusions (21) are fixedly connected to the edge of the top cover (1); and A supporting protrusion (22), wherein the supporting protrusion (22) is disposed on the base (20) and arranged in the annular area formed by the fixing protrusion (21), the supporting protrusion (22) is sleeved in the movable seat (3) and the upper end surface of the supporting protrusion (22) is flush with the upper end surface of the movable seat (3).

9. The lens aperture adjustment device according to claim 8, characterized in that: An elastic member (9) is provided between the movable seat (3) and the supporting protrusion (22).

10. The lens aperture adjustment device according to claim 8, characterized in that: A stepped structure is provided inside the fixing protrusion (21), and a ball (23) is provided inside the stepped structure of a pair of fixing protrusions (21) on one side.

11. The lens aperture adjustment device according to claim 10, characterized in that: The movable seat (3) is provided with a limiting groove (32) on its edge, the number and position of the limiting groove (32) correspond to the fixed protrusion (21), and a blocking piece protrusion (33) is provided at the inner bottom end of the limiting groove on one side of the edge of the movable seat (3), the position of the blocking piece protrusion (33) corresponds to the ball (23) and is used to cover the side of the ball (23).

12. The lens aperture adjustment device according to claim 10, characterized in that: Also includes: A magnetic attraction component, wherein the magnetic attraction component is arranged on the fixing seat (2); When at least two of the aperture adjustment components rotate, under the action of the adsorption force generated by the magnetic attraction component and the driving component, the movable seat (3) approaches the direction of the ball (23) until the outer wall of one side of the movable seat (3) abuts against the ball (23).

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