Aperture device, capture device, action camera, and movable object

Abstract

An aperture device (100), a capture device, an action camera, and a movable object. The aperture device (100) comprises a blade holder (10), a plurality of blade assemblies (20), a driving assembly (30), and an elastic assembly (40). The plurality of blade assemblies (20) are arranged around an optical axis, and one side of each blade assembly (20) is connected to the blade holder (10). Each blade assembly (20) comprises a guide portion (21). The driving assembly (30) comprises driving portions (31) corresponding to a plurality of guide portions (21), and is used for driving the plurality of blade assemblies (20) by means of the guide portions (21) to rotate in a preset direction. The elastic assembly (40) is connected to the blade holder (10). The elastic assembly (40) comprises a plurality of elastic members (41), wherein at least some of the plurality of elastic members (41) are jointly formed as an integrally formed structure. The elastic assembly (40) is used for abutting against the plurality of blade assemblies (20), so that edges of the guide portions (21) always abut against the driving portions (31) by means of the elastic force of the elastic members (41).

Description

Aperture device, photographing device, action camera and movable object TECHNICAL FIELD

[0001] The present application relates to the field of photographing technology, and in particular to an aperture device, a photographing device, an action camera and a movable object. BACKGROUND

[0002] The aperture device is an important component in the lens assembly of the photographing device, and is used for adjusting the light amount of the lens assembly. In order to facilitate assembly, when the blade assembly is assembled with the driving assembly, a certain assembly gap needs to be reserved. The existence of the assembly gap can cause the blade assembly to move in a small range when the photographing device is subjected to external vibration, resulting in discontinuous adjustment of the light amount or the light amount, which affects the imaging quality.

[0003] SUMMARY

[0004] Therefore, the present application provides an aperture device, a photographing device, a driving assembly and an action camera.

[0005] The aperture device provided in the first aspect of the present application comprises:

[0006] a blade support;

[0007] a plurality of blade assemblies arranged around an optical axis of the aperture device, one side of the blade assemblies being connected to the blade support, the other side of the blade assemblies collectively forming a light passing hole with an adjustable diameter, and the blade assemblies comprising guide portions;

[0008] a driving assembly comprising driving portions corresponding to the guide portions of the blade assemblies, the driving assembly being used for driving the blade assemblies to rotate in a predetermined direction through the guide portions, so as to adjust the size of the light passing hole; and

[0009] an elastic assembly connected to the blade support, the elastic assembly comprising a plurality of elastic members, at least part of the elastic members being collectively formed in an integral formation, the elastic assembly being used for abutting against at least one of the blade assemblies, so that the edges of the guide portions abut against the driving portions of the driving assembly through the elastic force of the elastic members.

[0010] The elastic assembly is arranged in abutment with the at least one blade assembly, so that the edge of the guide portion of the blade assembly is always in abutment with the driving portion of the driving assembly by the elastic force of the elastic member. Since the edge of the guide portion of the blade assembly and the driving portion of the driving assembly are always in abutment, the assembly gap of the blade assembly of the photographing device can be eliminated, so that the blade assembly does not deviate slightly relative to the driving portion of the driving assembly when the photographing device is vibrated, that is, the change of the aperture diameter does not fluctuate when the diameter of the light passing hole is adjusted, so that the light passing amount of the light passing hole is kept constant, thereby improving the imaging quality of the photographing device. Secondly, the plurality of elastic members are integrally formed into an integrated structure, which can reduce the assembly times of the elastic members and at least reduce the assembly and manufacturing difficulty of the aperture device to some extent, thereby saving manpower and resources. In addition, the integrated structure can neutralize the elastic error between the plurality of elastic members, so that the overall force of the blade assembly is balanced, which is beneficial to the stable rotation of the plurality of blade assemblies.

[0011] The aperture device provided in the second aspect of the present application comprises:

[0012] A blade support;

[0013] A plurality of blade assemblies arranged around the optical axis direction of the aperture device, one side of the blade assembly being connected with the blade support, the other side of the plurality of blade assemblies collectively forming a diameter-adjustable light passing hole, the plurality of blade assemblies comprising a guide portion;

[0014] A driving assembly comprising a driving portion corresponding to the guide portion of the plurality of blade assemblies, for driving the plurality of blade assemblies to rotate in a predetermined direction to adjust the size of the light passing hole; and

[0015] An elastic assembly comprising a plurality of elastic members and a plurality of limiting portions, the elastic member comprising a connecting end and a matching end, the connecting end being connected with the blade support, the matching end being connected with the limiting portion, the limiting portion being matched with the blade assembly to make the edge of the guide portion of the blade assembly always abut against the driving portion of the driving assembly by the elastic force of the elastic member, and at least part of the plurality of elastic members being integrally formed into an integrated structure with the blade support.

[0016] The elastic component includes a plurality of elastic members, which provide an elastic force to make the leaf blade assembly abut against the driving assembly, and the elastic members are located in the recess of the protection plate, thereby eliminating the assembly gap of the leaf blade assembly of the photographing device, reducing the assembly difficulty, and reducing the thickness of the aperture device to realize the miniaturization of the aperture device.

[0017] The third aspect of the present application provides an aperture device, comprising:

[0018] The leaf blade support includes a bottom plate or a back plate.

[0019] A plurality of leaf blade assemblies are arranged around the optical axis direction of the aperture device, one side of the leaf blade assembly is connected with the leaf blade support, and the other side of the plurality of leaf blade assemblies collectively forms a diameter-adjustable light passing hole, and the protection plate is located on one side of the plurality of leaf blade assemblies to protect the plurality of leaf blade assemblies.

[0020] A driving assembly is used to drive the plurality of leaf blade assemblies to rotate in a predetermined direction to adjust the size of the light passing hole.

[0021] An elastic component includes a plurality of elastic members, which provide an elastic force to make the leaf blade assembly abut against the driving assembly, and the protection plate is provided with a recess, and the elastic members are located in the recess.

[0022] The plurality of elastic members provide an elastic force to make the leaf blade assembly abut against the driving assembly, and the elastic members are located in the recess of the protection plate, thereby eliminating the assembly gap of the leaf blade assembly of the photographing device, reducing the assembly difficulty, and reducing the thickness of the aperture device to realize the miniaturization of the aperture device.

[0023] The fourth aspect of the present application provides a photographing device, comprising:

[0024] A lens assembly and the above-mentioned aperture device, the aperture assembly is located inside the lens assembly or on one side of the lens assembly.

[0025] The fifth aspect of the present application provides a motion camera, comprising:

[0026] A lens assembly includes the above-mentioned aperture device.

[0027] The movable object of the sixth aspect of the present application comprises:

[0028] a power unit configured to provide power for moving the movable object, and

[0029] a lens assembly comprising the aperture device. BRIEF DESCRIPTION OF DRAWINGS

[0030] In order to more clearly illustrate the technical solutions of the embodiments of the present application, the drawings needed in the embodiment description will be briefly introduced. Obviously, the drawings in the following description are some embodiments of the present application, and other drawings can be obtained by those skilled in the art without creative labor.

[0031] Fig. 1 is a structural schematic diagram of an aperture device according to an embodiment of the present application;

[0032] Fig. 2 is an exploded schematic diagram of the aperture device from a first perspective according to an embodiment of the present application;

[0033] Fig. 3 is a partial structural schematic diagram of the aperture device according to an embodiment of the present application;

[0034] Fig. 4 is an exploded schematic diagram of the aperture device from a second perspective according to an embodiment of the present application;

[0035] Fig. 5 is a partial structural schematic diagram of the aperture device according to an embodiment of the present application;

[0036] Fig. 6 is a structural schematic diagram of another aperture device according to an embodiment of the present application;

[0037] Fig. 7 is a structural schematic diagram of a lens assembly according to an embodiment of the present application. DETAILED DESCRIPTION

[0038] The technical solutions of the embodiments of the present application will be described clearly and completely in the following with reference to the drawings in the embodiments of the present application. Obviously, the described embodiments are some embodiments of the present application, not all embodiments. Based on the embodiments in the present application, all other embodiments obtained by those skilled in the art without creative labor are within the scope of protection of the present application.

[0039] In a related camera, an aperture device installed inside a lens assembly can adjust the F value of the lens assembly, which is the reciprocal of the relative aperture, also known as the aperture number, in order to adjust the exposure and the depth of field according to the brightness of the shooting object. Specifically, for a variable aperture, the size of the light passing hole of the aperture can be changed by a driving device to adjust the exposure. During the assembly of the variable aperture, assembly gaps are provided between the components to facilitate assembly. For example, there is an assembly gap between the leaf assembly and the driving assembly. Specifically, the size of the guide groove of the leaf assembly is slightly larger than the size of the driving shaft of the driving assembly, resulting in an assembly gap between the guide groove and the driving shaft after assembly.

[0040] If the camera is used in a vibrating environment or is used in a vibrating environment, the existence of the assembly gap will cause the leaf assembly to deviate slightly, making the aperture size of the light passing hole formed by the plurality of leaf assemblies unstable when adjusting the aperture size of the light passing hole, thereby causing the light adjustment of the aperture device to fluctuate and affecting the imaging quality.

[0041] Based on this, the embodiments of the present application propose an aperture device, a camera, a motion camera and a movable object using the aperture device.

[0042] As shown in FIGS. 1-4, the embodiments of the present application propose an aperture device 100 for adjusting the light amount and the depth of field of a lens assembly of a camera. The aperture device 100 includes a leaf support 10, a leaf assembly 20, a driving assembly 30 and a resilient assembly 40.

[0043] In some embodiments, the number of leaf assemblies 20 is multiple, the plurality of leaf assemblies 20 are arranged around the optical axis L of the aperture device 100, and one side of the leaf assembly 20 is connected to the leaf support 10, and the other side of the plurality of leaf assemblies 20 collectively forms a light passing hole H with adjustable diameter. Each leaf assembly 20 includes a guide portion 21. The driving assembly 30 includes a driving portion 31 corresponding to the guide portion 21 of the plurality of leaf assemblies 20, and the driving assembly 30 is used to drive the plurality of leaf assemblies 20 to rotate in a predetermined direction, for example, the first direction X or the second direction Y, to adjust the size of the light passing hole H. The resilient assembly 40 includes a plurality of elastic members 41, and the resilient assembly 40 is connected to the leaf support 10. Each of the resilient assemblies 40 is used to abut at least one of the leaf assemblies 20, so that the edges of the guide portions 21 always abut the driving portions 31 of the driving assembly 30 through the elastic force of the elastic members 41. At the same time, at least part of the plurality of elastic members 41 are collectively formed in an integrally formed structure.

[0044] The aperture device 100 provided by the embodiment of the present application is in abutment with the elastic component 40 and at least one blade component 20, so that the edge of the guide portion 21 is always in abutment with the driving portion 31 of the driving component 30 by the elastic force of the elastic member 41. Since the edge of the guide portion 21 of the blade component and the driving portion 31 of the driving component are always in abutment, the assembly gap of the blade component of the photographing device can be eliminated. Therefore, when the photographing device is subjected to vibration, the blade component 20 will not be deviated from the driving portion 31 of the driving component 30 in a small range, that is, when the diameter of the light passing hole H is adjusted, the change of the aperture of the light passing hole H will not fluctuate, or when the aperture is not adjusted, the aperture size will not change due to vibration, so that the light passing amount of the light passing hole is adjusted or kept constant, thereby improving the imaging quality of the photographing device.

[0045] For example, during the process of adjusting the diameter of the light passing hole H from 1 to 1 / 1.4, if the above assembly gap is not eliminated, the diameter of the light passing hole H cannot be smoothly adjusted from 1 to 1 / 1.4, but the error of the assembly gap of the blade component and the driving device must be eliminated first, and then the diameter of the light passing hole H can be changed. Therefore, the diameter of the light passing hole H cannot be adjusted from 1 to 1 / 1.4, but can be adjusted to 1 / 1.3 for example. At this time, the adjustment error of the aperture device is large, and the light adjustment requirement when the photographing device is subjected to vibration cannot be met. In the embodiment, the edge of the guide portion 21 of the blade component and the driving portion 31 of the driving component are always in abutment, the assembly gap of the blade component of the photographing device can be eliminated, the light passing amount of the light passing hole is kept constant, and the imaging quality of the photographing device is improved.

[0046] Secondly, at least part of the plurality of elastic members 41 are integrally formed into an integrated structure, which can reduce the assembly times of the elastic members 41, at least to a certain extent, reduce the assembly and manufacturing difficulty of the aperture device 100, and save manpower and resources. For example, for a precise aperture device, the size of the structure is small, and if the plurality of elastic members 41 are not integrally formed, each separate elastic member 41 needs to be hung on the blade component during installation, and the blade component has low rigidity and unstable shape, and needs to be bent, which causes great difficulty in the assembly process of the separate thin elastic member (for example, a torsion spring). In addition, the integrated structure can neutralize the elastic error between the plurality of elastic members 41, for example, the plurality of elastic members are an independent integrally formed component, so that the blade component 20 is balanced under force, and the plurality of blade components 20 rotate stably.

[0047] In some embodiments, the elastic assembly 40 further comprises a plurality of limiting portions 42, and the elastic member 41 comprises a connecting end 411 and a cooperating end 412, the connecting end 411 is connected with the blade support 10, and the cooperating end 412 is connected with the limiting portion 42, and the limiting portion 42 cooperates with the blade assembly 20 to enable the elastic force of the elastic member 41 to act on the guide portion 21 of the blade assembly 20, so that the edge of the guide portion 21 of the blade assembly 20 abuts against the driving portion 31 of the driving assembly 30, and at least part of the plurality of elastic members 41 are integrally formed with the blade support 10.

[0048] In the aperture device 100 provided in the embodiments of the present application, the elastic member 41 comprises a connecting end 411 and a cooperating end 412, the connecting end 411 is connected with the blade support 10, and the cooperating end 412 is connected with the limiting portion 42, and the connection of the cooperating end 412 with the limiting portion 42 enables the elastic force of the elastic member 41 to always act on the blade assembly 10, so that the edge of the guide portion 21 of the blade assembly 10 can always abut against the driving portion 31 of the driving assembly 30, and the assembly gap of the blade assembly 10 of the photographing device can be eliminated, so that when the photographing device is vibrated, the blade assembly 10 will not deviate from the driving portion 31 of the driving assembly 30 in a small range, that is, when the diameter of the light passing hole is adjusted, the change of the diameter of the light passing hole will not fluctuate, so that the light amount of the light passing hole is kept constant, thereby improving the imaging quality of the photographing device. Secondly, at least part of the plurality of elastic members are integrally formed with the blade support 10, which can integrally form at least part of the elastic members 31 with the blade support 10, reduces the assembly difficulty of the elastic members 31, and reduces the assembly and manufacturing difficulty of the small aperture device.

[0049] It should be noted that the "integrally formed structure" described in the present application refers to a component produced by one-time processing, without splicing or the need for separate connection again. For the description that the "A" element and the "B" element are integrally formed, it is only to distinguish the different functions of the "A" element and the "B" element, and it does not mean that the "A" element and the "B" element need to be spliced or connected again. The connection between the related components (for example, the "cooperating end is connected with the limiting portion through the stress adjusting portion" mentioned later) is also achieved by one-time forming, without the need for reconnection.

[0050] As shown in FIG. 2, in some embodiments, the guide portion 21 is a guide groove A, and the driving portion 31 is a driving shaft B, that is, the blade assembly 20 is provided with the guide groove A, and the driving assembly 30 is provided with the driving shaft B, and the driving shaft B protrudes from the guide groove A. It should be noted that the positions of the guide groove A and the driving shaft B can be interchanged, that is, the driving assembly 30 is provided with the guide groove A, and the blade assembly 20 is provided with the driving shaft B, which is also possible. The specific design can be determined according to the actual design needs.

[0051] As shown in FIG. 2, in some embodiments, the leaf assembly further comprises a limiting fitting part 22 for abutting with the limiting part 42 to make the edge of the guide part 21 of the leaf assembly 20 abut the driving part of the driving assembly 30 by the elastic force of the elastic member 41. The limiting fitting part 22 is a limiting groove C, and the limiting part 42 is a limiting shaft D, that is, the limiting groove C is arranged on the leaf assembly 20, the limiting shaft D is arranged on the elastic assembly 40, and the limiting shaft D protrudes in the limiting groove C. It should be noted that the positions of the limiting groove C and the limiting shaft D can be interchanged, that is, the limiting groove C can be arranged on the elastic assembly 40, and the limiting shaft D can be arranged on the leaf assembly 20, which can be determined according to actual design needs. Preferably, the limiting fitting part 22 is a limiting shaft, and the limiting part 42 is a limiting groove, so that the axial thickness of the elastic assembly 40 can be smaller and is not affected by the limiting part, and the difficulty of one-piece forming is lower.

[0052] In some embodiments, the driving part is movably connected with the guide part. As shown in FIG. 5, taking the leaf assembly 20 arranged with the guide groove A and the limiting groove C, the driving assembly 30 arranged with the driving shaft B, and the elastic assembly 40 arranged with the limiting shaft D as an example, in an embodiment, when the driving shaft B rotates around the optical axis L along the first driving direction E1, the plurality of leaf assemblies 20 are driven to rotate by the guide groove A to the direction in which the diameter of the light passing hole H becomes larger, when the driving shaft B rotates around the optical axis L along the second driving direction E2, the plurality of leaf assemblies 20 are driven to rotate by the guide groove A to the direction in which the diameter of the light passing hole H becomes smaller, the elastic member 41 pulls the leaf assembly 20 by the elastic force of the limiting shaft D to the direction of elastic recovery, the leaf assembly 20 is pulled by the elastic assembly 40 to make the first groove wall A1 of the guide groove A abut the driving shaft B, and during the rotation of the driving shaft B around the optical axis L along the first driving direction E1 or the second driving direction E2, the first groove wall A1 of the guide groove A is always in contact with the driving shaft B, so that the gap between the first groove wall A1 of the guide groove A and the driving shaft B is eliminated. As shown in FIG. 2, in some embodiments, the number of the leaf assemblies 20 is five, and the five leaf assemblies 20 are arranged around the optical axis L. Of course, the number of the leaf assemblies 20 is not limited to five, for example, in other embodiments, the number of the leaf assemblies 20 can also be two, three, four, six or more, which can be determined according to actual design needs.

[0053] As shown in FIG. 2, in some embodiments, the number of elastic members 41 and the number of limiting portions 42 are both five, and the five elastic members 41 are arranged around the optical axis L. Of course, the number of elastic members 41 and the number of limiting portions 42 are not limited to both being five, for example, in other embodiments, the number of elastic members 41 and the number of limiting portions 42 can both be two, three, four, six, or more, which can be determined according to actual design needs.

[0054] As shown in FIG. 2, in some embodiments, the blade holder 10 includes a support plate 11 for supporting the elastic assembly, and at least part of the plurality of elastic members 41 are integrally formed with the support plate 11. Wherein, the "at least part of the plurality of elastic members 41" refers to at least some of the plurality of elastic members 41, for example, when the number of elastic members 41 is five, one, two, three, or four of the five elastic members 41 are the at least part of the plurality of elastic members 41. With this embodiment, by integrally forming at least part of the plurality of elastic members 41 with the support plate 11, the elastic assembly can be assembled on the aperture device 100 at one time, so as to eliminate the assembly gap between the blade assembly and the driving assembly, reduce the assembly and manufacturing difficulty of the aperture device 100, and save manpower and resources.

[0055] In some embodiments, the plurality of elastic members 41 are integrally formed with the support plate 11. With this embodiment, since all the elastic members 41 do not need to be assembled additionally, the assembly and manufacturing difficulty of the aperture device 100 can be maximally reduced, and manpower and resources can be saved.

[0056] As shown in FIG. 3, in some embodiments, the support plate 11 is provided with a recess 111, and the elastic member 41 is located in the recess 111. The recess 111 can be a hollow structure. More specifically, the recess is a hollow part formed by hollowing the support plate. Wherein, the "elastic member 41 is located in the recess 111" means that the elastic member 41 is located in the range circled by the edge profile of the recess 111. As for the thickness direction, that is, the optical axis L direction, the elastic member 41 can be all located in the recess 111, or part of it can be exposed outside the recess 111. With this embodiment, by locating the elastic member 41 in the recess 111, the elastic member 41 can use the space formed by the recess 111 to at least or all be embedded in the recess 111 in the optical axis L direction, so as to avoid the elastic member 41 having a large impact on the thickness of the aperture device 100, and not affecting the miniaturization of the lens assembly.

[0057] It should be noted that in order to avoid the elastic member 41 from affecting the thickness of the aperture device 100, the support plate 11 is not limited to the hollow structure as the recess 111, for example, in some other embodiments, the support plate 11 is provided with a sunken groove as the recess 111, and the elastic member 41 is located in the sunken groove. The "sunken groove" refers to a groove that does not penetrate the support plate 11. In this embodiment, the elastic member 41 can also use the avoiding space formed by the sunken groove, and at least or all of the elastic member 41 is embedded in the sunken groove in the direction of the optical axis L, so as to avoid the elastic member 41 from affecting the thickness of the aperture device 100, and the miniaturization of the lens assembly is not affected.

[0058] As shown in FIGS. 2 and 4, in some embodiments, the support plate 11 includes opposite first and second surfaces 11a and 11b in the direction of the optical axis L, and the elastic member 41 is located in the range defined by the first and second surfaces 11a and 11b. In this embodiment, the elastic member 41 does not protrude from the first or second surface 11a or 11b of the support plate 11, and does not affect the thickness of the aperture device 100, and the miniaturization of the lens assembly is not affected.

[0059] In some embodiments, the thickness of the elastic member 41 in the direction of the optical axis L is less than or equal to the thickness of the support plate 11 in the direction of the optical axis L. It should be noted that when the thickness of the elastic member 41 is less than the thickness of the support plate 11 in the direction of the optical axis L, the stress of the elastic member 41 can be reduced, and the stress of the elastic member 41 is not too large, which affects the rotation of the blade assembly 20.

[0060] As shown in FIG. 2, in some embodiments, the blade holder 10 further includes a protection plate 10', which is located on one side or both sides of the plurality of blade assemblies 20, and is used for protecting the blade assemblies 20. In some embodiments, the protection plate can include a bottom plate 12 and a back plate 13, and the support plate 11 is located between the bottom plate 12 and the back plate 13. The bottom plate 12 and the back plate 13 can also protect the support plate 11.

[0061] It should be noted that the support plate 11 is not limited to being arranged between the bottom plate 12 and the back plate 13, for example, in some other embodiments, the support plate 11 can be arranged to be integrally formed with the bottom plate 12 or the back plate 13.

[0062] In some embodiments, the leaf assembly 20 is disposed between the bottom plate 12 and the back plate 13, wherein the elastic assembly 40 is connected with the bottom plate 12, and the support plate 11 is disposed between the bottom plate 12 and the leaf assembly 20. Of course, the elastic assembly 40 is not limited to be disposed to be connected with the bottom plate 12, for example, in other embodiments, the elastic assembly 40 is connected with the back plate 13, and the support plate 11 is disposed between the back plate 13 and the leaf assembly 20. The bottom plate 12 and the back plate 13 can play a protective role for the leaf assembly 20, and of course, the bottom plate 12 and the back plate 13 can also play a limiting role for the leaf assembly 20 and the support plate 11 in the direction of the optical axis L.

[0063] As shown in FIG. 2, it is to be noted that for the embodiment in which the support plate 11 is disposed between the bottom plate 12 and the leaf assembly 20, the side of the bottom plate 12 facing the leaf assembly 20 is provided with a fitting groove 121, and the support plate 11 is at least partially embedded in the fitting groove 121. The fitting groove 121 can play a positioning role for the support plate 11, on the one hand, facilitating the installation of the support plate 11, and on the other hand, limiting the rotation of the leaf assembly 20 in the direction around the optical axis L. Similarly, for the embodiment in which the support plate 11 is disposed between the back plate 13 and the leaf assembly 20, the side of the back plate 13 facing the leaf assembly 20 can be provided with a fitting groove 121, and the support plate 11 is at least partially embedded in the fitting groove 121.

[0064] It is also to be noted that the protective plate 10' of the leaf holder 10 is not limited to being provided to simultaneously include the bottom plate 12 and the back plate 13, for example, in other embodiments, the leaf holder 10 can only include one of the bottom plate 12 and the back plate 13. The specific design can be determined according to actual design needs.

[0065] In some embodiments, at least one of the support plate 11, the bottom plate 12 and the back plate 13 is made of metal. For example, the support plate 11 is made of metal, or all of the support plate 11, the bottom plate 12 and the back plate 13 are made of metal. By setting at least one of the support plate 11, the bottom plate 12 and the back plate 13 to be made of metal, the wear resistance of the support plate 11, the bottom plate 12 or the back plate 13 can be improved, and the service life of the aperture device 100 can be prolonged.

[0066] In order to reduce the assembly and manufacturing difficulty of the aperture device 100, in the above embodiment, at least part of the plurality of elastic members 41 are integrally formed with the support plate 11. It should be noted that the above embodiment is not limiting, for example, in some other embodiments, as shown in FIG. 2, the leaf holder 10 can include a protection plate 10' instead of the support plate 11, the protection plate 10' is located on one side of the plurality of leaf assemblies, and is used to protect the leaf assemblies 20. At least part of the plurality of elastic members 41 are integrally formed with the protection plate 10' in an integral structure. Specifically, the protection plate 10' includes a bottom plate 12 and a back plate 13. At least part of the plurality of elastic members 41 can be integrally formed with the bottom plate 12 or the back plate 13. Wherein, the "at least part of the plurality of elastic members 41" refers to at least some of the plurality of elastic members 41, for example, the elastic members 41 are five, one, two, three or four of the five elastic members 41 are the at least part of the plurality of elastic members 41. In this embodiment, by integrally forming at least part of the plurality of elastic members 41 with the bottom plate 12 or the back plate 13, the assembly and manufacturing difficulty of the aperture device 100 can be reduced to a certain extent, and the manpower and material resources can be saved.

[0067] In some embodiments, all of the plurality of elastic members 41 are integrally formed with the bottom plate 12 or the back plate 13. In this embodiment, since all of the elastic members 41 can be assembled on the aperture device 100 at one time, without the need for additional assembly, the assembly and manufacturing difficulty of the aperture device 100 can be maximized, and the manpower and material resources can be saved.

[0068] In some embodiments, the bottom plate 12 or the back plate 13 is provided with a recess, and the elastic member 41 is located in the recess. The "elastic member 41 is located in the recess" means that the elastic member 41 is located within the range circled by the edge profile of the recess. In the thickness direction, that is, the optical axis L direction, the elastic member 41 can be entirely located in the recess, or partially located in the recess and partially exposed outside the recess. In this embodiment, by locating the elastic member 41 in the recess, the elastic member 41 can be at least or entirely embedded in the recess in the optical axis L direction by using the avoiding space formed by the recess, so as to avoid that the elastic member 41 has a great impact on the thickness of the aperture device 100, and does not affect the miniaturization of the lens assembly.

[0069] It should be noted that in order to avoid the elastic member 41 from affecting the thickness of the aperture device 100, the bottom plate 12 or the back plate 13 is not limited to the hollow structure as the recessed portion, for example, in some other embodiments, the bottom plate 12 or the back plate 13 is provided with a sink as the recessed portion, and the elastic member 41 is located in the sink. The "sink" refers to a groove that does not penetrate the bottom plate 12 or the back plate 13. In this embodiment, the elastic member 41 can also use the avoiding space formed by the sink, and at least or all of the elastic member 41 is embedded in the sink in the direction of the optical axis L, so as to avoid the elastic member 41 from affecting the thickness of the aperture device 100, and the miniaturization of the lens assembly is not affected.

[0070] In some embodiments, the bottom plate 12 or the back plate 13 includes opposite first and second surfaces in the direction of the optical axis L, and the elastic member 41 is located in the range defined by the first and second surfaces. In this embodiment, the elastic member 41 does not protrude from the first or second surface of the bottom plate 12 or the back plate 13, and does not affect the thickness of the aperture device 100, so that the aperture device 100 can maintain the original thickness, and the miniaturization of the lens assembly is not affected.

[0071] In some embodiments, the thickness of the elastic member 41 in the direction of the optical axis L is less than or equal to the thickness of the bottom plate 12 or the back plate 13 in the direction of the optical axis L. It should be noted that when the thickness of the elastic member 41 is less than the thickness of the bottom plate 12 or the back plate 13 in the direction of the optical axis L, the stress of the elastic member 41 can be reduced, and the stress of the elastic member 41 is not too large to affect the rotation of the blade assembly 20.

[0072] In some embodiments, the elastic member 41 is integrally formed by etching. The etching process can accurately manufacture the fine shape of the elastic member 41, and reduce the elastic force error between the plurality of elastic members 41 due to manufacturing errors. Of course, the elastic member 41 is not limited to being integrally formed by etching, for example, in some other embodiments, the elastic member 41 can also be integrally formed by machining, such as wire cutting or stamping.

[0073] As shown in FIG. 2, in some embodiments, the blade holder 10 includes a support plate 11, and a portion of the support plate 11 is etched in a predetermined area along the thickness direction, and the elastic member 41 is etched in the predetermined area. In this embodiment, the elastic member 41 can be formed to be thinner than the thickness of the support plate 11, and the thinner elastic member 41 can reduce the stress, and the stress of the elastic member 41 is not too large to affect the rotation of the blade assembly 20.

[0074] The above is for the embodiment that the elastic member 41 is integrally formed with the support plate 11. In other embodiments, as shown in FIG. 2, the blade holder 10 includes a bottom plate 12 or a back plate 13, a portion of the bottom plate 12 or the back plate 13 is etched in the thickness direction in a preset area, and the elastic member 41 is etched in the preset area. That is, the embodiment is for the elastic member 41 integrally formed with the bottom plate 12 or the back plate 13, and the elastic member 41 can be formed to be thinner than the bottom plate 12 or the back plate 13.

[0075] As shown in FIG. 3, in some embodiments, the elastic assembly 40 further includes a main body 43, and at least part of the plurality of elastic members 41 are integrally formed into an integrally formed structure through the main body 43. For example, the number of elastic members 41 is five, two of which, or three of which, or four of which, or all five of which are integrally formed through the main body 43. In this embodiment, the elastic members 41 integrally formed with the main body 43 can be assembled without additional assembly, at least to a certain extent, reducing the assembly difficulty of the aperture device 100 and saving manpower and resources.

[0076] As shown in FIG. 3, in some embodiments, the plurality of elastic members 41 are integrally formed through the main body 43. In this embodiment, the plurality of elastic members 41 can be assembled without additional assembly, maximizing the assembly difficulty of the aperture device 100.

[0077] As shown in FIG. 3, in some embodiments, the number of elastic members 41 is at least two, and the at least two elastic members 41 are arranged at intervals around the optical axis L. For example, the number of elastic members 41 is five, and the five elastic members 41 are arranged at intervals around the optical axis L.

[0078] In some embodiments, the elastic member 41 includes a first group of elastic members and a second group of elastic members, and each of the first group of elastic members and the second group of elastic members includes at least two elastic members 41 arranged in sequence, and at least one of the first group of elastic members and the second group of elastic members is integrally formed. As described above, the integrally formed elastic member can be assembled without additional assembly, to a certain extent, reducing the assembly difficulty of the aperture device 100.

[0079] In some embodiments, the elastic member 41 is a sheet-shaped structure arranged in the direction of the optical axis L. From the side, that is, perpendicular to the direction of the optical axis L, the elastic member 41 is a whole thin plate.

[0080] In some embodiments, the elastic member 41 is a spring.

[0081] In some embodiments, the plurality of elastic members 41 and the main body 43 are integrally formed into a spring.

[0082] In some embodiments, the plurality of elastic members 41 and the main body 43 are integrally formed into a metal spring.

[0083] As shown in FIG. 2, in some embodiments, the elastic assembly 40 further comprises a plurality of limiting portions 42 corresponding to the plurality of elastic members 41, the limiting portions 42 abut with the limiting matching portions 22 to make the edge of the guiding portion 21 of the blade assembly 20 abut the driving portion 31 of the driving assembly 30 by the elastic force of the elastic members 41.

[0084] As shown in FIG. 3, in some embodiments, each elastic member 41 comprises a connecting end 411 connected with the blade support 10, and the limiting portion 42 is connected (integrally formed) with the elastic member 41.

[0085] As shown in FIG. 2, in some embodiments, the blade support 10 is provided with a pivot joint 14, and the blade assembly 20 is connected with the blade support 10 through the pivot joint 14. After the connection, the blade assembly 20 can rotate relative to the blade support 10 around the pivot joint 14.

[0086] As shown in FIG. 2, in some embodiments, the blade assembly 20 further comprises a pivot portion 23 corresponding to the pivot joint 14, the pivot portion 23 cooperates with the pivot joint 14 to make one side of the blade assembly 20 connected with the blade support 10, so that the edge of the guiding portion 21 of the blade assembly 20 abuts the driving portion 31 of the driving assembly 30 by the elastic force of the elastic members 41, and the pivot portion 23 of the blade assembly 20 abuts the pivot joint 14 of the blade support 10. In this embodiment, because the edge of the guiding portion 21 of the blade assembly 20 and the driving portion 31 of the driving assembly 30, and the pivot portion 23 of the blade assembly 20 and the pivot joint 14 of the blade support 10, keep abutting, when the imaging device is subjected to vibration or impact, under the limiting action of the driving portion 31 and the pivot joint 14, the blade assembly 20 will not move in a small range relative to the driving portion 31 of the driving assembly 30 and the pivot joint 14 of the blade support 10, that is, when the diameter of the light passing hole H is adjusted, it will not fluctuate, so that the light amount of the light passing hole H remains constant, thereby improving the imaging quality of the imaging device.

[0087] As shown in FIG. 2, in some embodiments, the blade assembly 20 further comprises a pivot portion 23 corresponding to the pivot joint 14, the pivot joint 14 is a pivot shaft G, the pivot portion 23 is a pivot hole K, and the pivot shaft G protrudes from the pivot hole K. It should be noted that the positions of the pivot shaft G and the pivot hole K can be interchanged, that is, the blade assembly 20 is provided with the pivot shaft G, and the blade support 10 is provided with the pivot hole K, which is also possible, and the specific design can be determined according to the actual design needs.

[0088] As shown in FIG. 3, in some embodiments, each elastic member 41 further comprises a matching end 412, and the limiting portion 42 is connected with the elastic member 41 through the matching end 412.

[0089] As shown in FIG. 3, in some embodiments, the fitting end 412 comprises a ring portion 4121, and the limiting portion 42 protrudes from the ring portion 4121 (both are integrally formed). With this implementation, the limiting portion 42 can well achieve the positioning and orientation effects, and can be accurately positioned during the subsequent cooperation between the limiting portion 42 and the limiting cooperation portion 22, thereby avoiding excessive or insufficient stress between the limiting portion 42 and the limiting cooperation portion 22 due to the positional deviation of the limiting portion 42, which affects the rotation of the blade assembly 20 or affects the anti-backlash effect.

[0090] It should be noted that the limiting portion 42 protrudes from the ring portion 4121, and the fixing between the limiting portion 42 and the fitting end 412 can be integrally formed in the form of interference fit.

[0091] As shown in FIG. 3, in some embodiments, each elastic member 41 further comprises a stress adjusting portion 413, and the connecting end 411 is connected to the limiting portion 42 through the stress adjusting portion 413. The stress adjusting portion 413 comprises at least one bend. With this implementation, by arranging the stress adjusting portion 413 to comprise at least one bend, the length of the stress adjusting portion 413 can be extended, which can reduce the stress of the elastic member 41 and avoid affecting the rotation of the blade assembly 20 due to excessive stress of the elastic member 41. In some embodiments, the stress adjusting portion comprises three bend portions.

[0092] In some embodiments, one side of the blade assembly 20 is rotatably connected to the blade support 10.

[0093] In some embodiments, one side of the blade assembly 20 is rotatably connected to the blade support 10 in a manner that the pivot shaft cooperates with the pivot hole, wherein the size of the pivot hole is larger than that of the pivot shaft. That is, a predetermined gap is reserved between the two, and with this implementation, not only the assembly between the blade assembly 20 and the blade support 10 is facilitated, but also the wear between the blade assembly 20 and the blade support 10 is reduced, thereby prolonging the service life of the aperture device 100. Of course, the rotatable connection between one side of the blade assembly 20 and the blade support 10 can also not be provided with a gap, which can be determined according to actual design needs.

[0094] In some embodiments, the elastic assembly 40 is integrally formed with the blade support 10.

[0095] As shown in FIG. 3, in some embodiments, the vane support 10 comprises a recess 111, the recess 111 comprises a first side wall 1111 close to the pivot joint 23 of the vane support 10, the fitting end 412 of the elastic member 41 is arranged close to the first side wall 1111, and the connecting end 411 of the elastic member 41 is connected with the first side wall 1111. In this implementation, the first side wall 1111 is close to the pivot joint 23 of the vane support 10, and the fitting end 412 of the elastic member 41 is also close to the first side wall 1111, that is, the fitting end 412 of the elastic member 41 is close to the pivot joint 23 of the vane support 10, so that the situation that the deformation of the elastic member 41 is too large to be designed and the anti-backlash effect is poor can be avoided.

[0096] As shown in FIG. 3, in some embodiments, the recess 111 further comprises a second side wall 1112 opposite to the first side wall 1111, and the elastic member 41 further comprises a stress adjusting portion 413, the stress adjusting portion 413 extends from the connecting end 411 to the second side wall 1112, reversely bends and extends to be connected with the fitting end 412 after extending close to the second side wall 1112. In this implementation, the length and the number of bends of the stress adjusting portion 413 can be as long as possible, so as to reduce the stress of the elastic member 41 and avoid that the stress of the elastic member 41 is too large to affect the rotation of the vane assembly 20.

[0097] In some embodiments, the vane support 10 comprises a support plate 11 and a bottom plate 12, and the elastic member 41 is integrally formed with the support plate 11 and the bottom plate 12 as an integrally formed structure, and the bottom plate 12 is provided with a recess for realizing the integrally formed structure of the elastic member 41, the support plate 11 and the bottom plate 12.

[0098] As shown in FIGS. 2 and 3, in some embodiments, the elastic assembly 40 comprises a plurality of elastic limiting portions 44 and a main body 43, and the plurality of elastic limiting portions 44 are integrally formed with the main body 43 as an integrally formed structure. In this implementation, the plurality of elastic limiting portions 44 are integrally formed with the main body 43, and thus do not need to be additionally assembled, so that the assembly and manufacturing difficulty of the aperture device 100 can be reduced, and the manpower and material resources can be saved.

[0099] As shown in FIG. 2, in some embodiments, the elastic limiting portion 44 comprises an elastic member 41 and a limiting portion 42, the elastic member 41 comprises a connecting end 411, a stress adjusting portion 413 and a fitting end 412, wherein the connecting end 411 is used for fixedly connecting one end of the elastic member 41 with the vane support 10, the stress adjusting portion 413 is used for reducing the stress between the connecting end 411 and the fitting end 412, and the fitting end 412 is used for connecting the limiting portion 42, so that the elastic member 41 applies the elastic force to the edge of the guide portion 21 of the vane assembly 20 through the limiting portion 42.

[0100] As shown in FIG. 2, in some embodiments, the main body 43 is provided with a clearance hole W corresponding to the guide portion 21 of the blade assembly 20, so that the driving portion 31 of the driving assembly 30 cooperates with the guide portion 21 of the blade assembly 20.

[0101] As shown in FIG. 2, in some embodiments, the plurality of blade assemblies 20 further comprise a pivoting portion 23, the blade assembly 20 is rotatably connected with the blade support 10 through the pivoting portion 23, the limiting cooperation portion 22 is located between the pivoting portion 23 and the guide portion 21 in the radial direction of the aperture device 100, the pivoting portion 23 is used for rotatable connection with the blade support 10, and the limiting cooperation portion 22 is used for abutting against the elastic member 41, so that the elastic member 41 generates elastic force.

[0102] As shown in FIG. 2, in some embodiments, the distance between the limiting cooperation portion 22 and the pivoting portion 23 is less than a preset distance. In other embodiments, the distance between the limiting cooperation portion 22 and the pivoting portion 23 is less than the distance between the limiting cooperation portion 22 and the guide portion 21. In this way, the requirement for the deformation amount of the elastic member (for example, the elastic sheet) can be greatly reduced, and a relatively optimal anti-backlash effect can be achieved without using an elastic member with a large deformation amount.

[0103] It should be noted that the positional relationship among the pivoting portion 23, the limiting cooperation portion 22 and the guide portion 21 is not limited to the above-described embodiments. For example, in other embodiments, the limiting cooperation portions 22 of the plurality of blade assemblies 20 are arranged at equal intervals around the direction of the optical axis L; the guide portions 21 of the plurality of blade assemblies 20 are arranged at equal intervals around the direction of the optical axis L, that is, the limiting cooperation portions 22 and the guide portions 21 are both arranged at equal intervals around the direction of the optical axis L, and the pivoting portion 23 is located outside the limiting cooperation portions 22 and the guide portions 21. In some embodiments, the plurality of blade assemblies 20 are stacked in sequence along the axial direction of the light transmission hole, for example, the blades are placed in sequence in a staggered manner.

[0104] In some embodiments, the direction of the force exerted by the elastic assembly 40 on the plurality of blade assemblies 20 is consistent with the direction of movement of the blade assembly 20 when the aperture diameter of the blade assembly 20 increases. Alternatively, the direction of the force exerted by the elastic assembly 40 on the plurality of blade assemblies 20 is consistent with the direction of movement of the blade assembly 20 when the aperture diameter of the blade assembly 20 decreases.

[0105] It should be noted that the plurality of blade assemblies 20 are not limited to the above-described arrangement in sequence. For example, in other embodiments, the plurality of blade assemblies 20 comprise first blades and second blades, the number of the first blades is the same as the number of the second blades, and the first blades and the second blades are arranged in overlap along the direction of the optical axis L (that is, the axial direction of the light transmission hole).

[0106] In some embodiments, the number of the first blades and the second blades is greater than two. In some embodiments, the plurality of first blades are located in a same plane, and the plurality of second blades are located in another plane different from the plurality of first blades.

[0107] With this implementation, the thickness of the plurality of blade assemblies 20 in the direction of the optical axis L is the thickness of two blades (all the first blades are in the first layer, and all the second blades are in the second layer, the first blades and the second blades move in different planes respectively and do not interfere with each other, so the axial thickness is the thickness of two blades, for example, the first blades are 3 pieces, the 3 pieces of blades are arranged at intervals and move in the first plane, the second blades are 3 pieces, the 3 pieces of blades are arranged at intervals and do not interfere with each other between the 3 pieces of blades of the first blades and the 3 pieces of blades of the second blades, so the axial thickness is the thickness of 2 pieces of blades), which can greatly reduce the thickness of the plurality of blade assemblies 20 (in the manner of stacking in turn, the total axial thickness is the total thickness of the blades, for example, a total of 6 pieces of blades, and the axial thickness is the thickness of 6 pieces of blades), thereby reducing the thickness of the aperture device 100, and further reducing the thickness of the lens assembly, and also reducing the requirements for stress design of the elastic member.

[0108] As shown in FIGS. 2 and 4, in some embodiments, the driving assembly 30 includes a driving member 32, a transmission assembly 33, and a driving disc 34, the driving member 32 drives the blade assembly 20 to move through the driving disc 34, specifically, the driving member 32 is connected with the driving disc 34 through the transmission assembly 33 to drive the driving disc 34 to rotate around the optical axis L, and the driving part 31 is located on or connected with the driving disc 34.

[0109] In some embodiments, the transmission assembly 33 includes a driving gear 331 and a driven gear 332, the driving gear 331 is connected with the driving member 32, the driven gear 332 is connected with the driving disc 34, and the driving gear 331 is engaged with the driven gear 332.

[0110] It should be noted that the driven gear 332 can be a complete gear or a partial gear. Similarly, the driving gear 331 can be a complete gear or a partial gear.

[0111] In some embodiments, the driven gear 332 is integrally formed with the driving disc 34. With this implementation, the structure can be simplified and the assembly process can be reduced. Of course, in other embodiments, the driven gear 332 and the driving disc 34 are separately arranged, and the driven gear 332 can be connected to the driving disc 34 through fasteners, which can be determined according to actual design needs.

[0112] In some embodiments, the driving member 32 is an electric motor.

[0113] In some embodiments, the distance between the driving member 32 and the blade assembly 20 is less than the distance between the driving disc 34 and the blade assembly 20, more specifically, the driving member 32 and the driving disc 34 are both located at the same side of the blade assembly, and the driving member 32 is closer to the blade assembly than the driving disc 34, so that the aperture device can be miniaturized.

[0114] In the above embodiments, the driving assembly 30 drives the driving disc 34 to rotate by means of a motor and a gear set. It should be noted that the above-mentioned implementation is not limited, for example, in some other embodiments, referring to FIG. 6, the driving assembly 30 includes the driving disc 34, and the driving part 31 is arranged on the driving disc 34. In addition, the driving disc 34 is further provided with a first magnetic member 341, and the aperture device 100 further includes a second magnetic member 51. The first magnetic member and the second magnetic member interact to generate a force for driving the driving disc 34.

[0115] In some embodiments, the aperture device 100 further includes a fixing seat 50, and the second magnetic member 51 is arranged on the fixing seat 50. The first magnetic member 341 on the driving disc 34 interacts with the second magnetic member 51 on the fixing seat 50 to generate a force for driving the driving disc 34 to rotate. In some embodiments, the first magnetic member is a permanent magnet, for example, a magnet, and the second magnetic member is an electromagnet, for example, a coil, or the first magnetic member is a coil, and the second magnetic member is a magnet.

[0116] Next, referring to FIG. 6, a more detailed implementation is provided to further illustrate the present application.

[0117] The aperture device comprises a blade support 10, a blade assembly 20, a driving assembly 30, an elastic assembly 40 and a fixed base 50 arranged along the optical axis L, wherein the blade support 10 comprises a bottom plate 12 and a back plate 13 arranged in sequence along the optical axis L, and is used for protecting the blade assembly 20 arranged between the bottom plate 12 and the back plate 13; the blade assembly 20 is provided with a pivoting part 23, a limiting cooperation part 22 and a guide part 21, one side of the blade assembly 20 is used for being connected with the fixed base 50, and the other side is used for jointly forming a light passing hole H with adjustable diameter; the elastic assembly 40 is arranged in the opposite direction of the optical axis L of the bottom plate 12, and comprises a plurality of elastic limiting parts 44 (the elastic limiting part 44 comprises an elastic piece 41 and a corresponding limiting part 42, each elastic piece 41 comprises at least a stress adjusting part, one end of the stress adjusting part is connected with the limiting part 42, the other end is connected with the main body, and is used for reducing the stress of the whole elastic piece) and a main body 43, the elastic assembly 40 is integrally formed, the main body 43 connects the plurality of elastic limiting parts, so as to facilitate assembly, preferably, the elastic assembly 40 is an integral elastic sheet; the driving assembly 30 is arranged in the opposite direction of the optical axis L of the elastic assembly 40, and comprises a driving part 31 and a first magnetic piece 341; the fixed base 50 is arranged in the opposite direction of the optical axis L of the driving assembly 30, and comprises a second magnetic piece 51 and a pivoting piece corresponding to the pivoting part 23 (not shown in the figure).

[0118] In the embodiment, the second magnetic piece 51 on the fixed base 50 interacts with the first magnetic piece on the driving assembly 30 to generate a force for rotating the driving assembly 30 relative to the fixed base 50, the pivoting piece on the fixed base is connected with the pivoting part 23 of the blade assembly, so that the position of one side of the plurality of blade assemblies is unchanged, the driving part 31 of the driving assembly 30 is movably connected with the guide part of the blade assembly 20, under the rotating action of the driving part 31, the guide part drives the other side of the blade assembly to rotate in the direction perpendicular to the optical axis, so as to adjust the size of the light passing hole H. In this process, the limiting part 42 of the elastic assembly 40 is abutted and matched with the limiting cooperation part 22 of the blade assembly 20 under the elastic force of the elastic piece 41, so that the driving part 31 of the driving assembly 30 is always in contact with the guide part of the blade assembly 20, and the assembly gap between the two is eliminated. Thus, the aperture device with smaller size (magnetic force is used, and a motor is not needed for direct driving), more portable installation (the elastic assembly 40 is an integral elastic sheet), and strong structural rigidity (the bottom plate and the back plate jointly protect the blade assembly) can be provided.

[0119] The embodiment of the present application provides an aperture device 100 for adjusting the light amount and the depth of focus of a lens assembly of a shooting device. The aperture device 100 comprises a blade support 10, a plurality of blade assemblies 20, a driving assembly 30 and an elastic assembly 40. The plurality of blade assemblies 20 are arranged around an optical axis L of the aperture device 100, and one side of the blade assemblies 20 is connected with the blade support 10, and the other side of the plurality of blade assemblies 20 jointly forms a light passing hole H with an adjustable diameter. Each blade assembly 20 comprises a guide part 21. The driving assembly 30 comprises a driving part 31 corresponding to the guide parts 21 of the plurality of blade assemblies 20, and is used for rotating the plurality of blade assemblies 20 along a first direction X or a second direction Y through the guide parts 21, so as to adjust the size of the light passing hole H. The elastic assembly 40 is connected with the blade support 10, and comprises a plurality of elastic members 41, and at least part of the plurality of elastic members 41 is integrally formed. The elastic assembly 40 is always in abutting cooperation with the plurality of blade assemblies 20, so that the edges of the guide parts 21 are always in abutment with the driving part 31 of the driving assembly 30 through the elastic force of the elastic members 41.

[0120] The aperture device 100 provided by the embodiment has the following advantages. Firstly, the elastic assembly 40 is always in abutting cooperation with the plurality of blade assemblies 20, and the edges of the guide parts 21 of the blade assemblies 20 are always in abutment with the driving part 31 of the driving assembly 30 through the elastic force of the elastic members 41. Since the edges of the guide parts 21 of the blade assemblies 20 and the driving part 31 of the driving assembly 30 are always in abutment, when the shooting device is vibrated, the blade assemblies 20 will not move in a small range relative to the driving part 31 of the driving assembly 30 under the limitation of the driving part 31, that is, the diameter of the light passing hole H will not change or fluctuate when the diameter of the light passing hole H is constant or is adjusted, so that the light amount of the light passing hole H remains constant, thereby improving the imaging quality of the shooting device. Secondly, the at least part of the plurality of elastic members 41 is integrally formed, so that the assembly times of the elastic members 41 are reduced, and the assembly and manufacturing difficulty of the aperture device 100 is reduced to a certain extent, manpower and material resources are saved, and in particular, the structure size of the aperture device 100 is small. If the elastic members 41 are not integrally formed, the very thin elastic members 41 need to be hung on the blade assemblies 20 in the installation process, the rigidity of the blade assemblies 20 is low, the shape is unstable, and the elastic members 41 also need to be bent, which causes great difficulty in the assembly process. In addition, the integrally formed structure can neutralize the elastic errors between the plurality of elastic members 41, so that the blade assemblies 20 are balanced in force, and the plurality of blade assemblies 20 are stably rotated.

[0121] The structures, connection relationships, expansion descriptions and beneficial effects of other components of the aperture device 100 provided by the embodiment can refer to the above-mentioned embodiments, and will not be described here.

[0122] The embodiment of the present application also proposes an aperture device 100 for adjusting the light amount and the depth of focus of a lens assembly of a photographing device. The proposed aperture device 100 comprises a blade support 10, a plurality of blade assemblies 20, a driving assembly 30 and an elastic assembly 40. The blade support 10 comprises a protection plate 10', the plurality of blade assemblies 20 are arranged around the optical axis L of the aperture device 100, and one side of the blade assemblies 20 is connected to the blade support 10, and the other side of the plurality of blade assemblies 20 jointly forms a light passing hole H with adjustable diameter, and the protection plate 10' is located on one side of the plurality of blade assemblies 20 for protecting the plurality of blade assemblies 20. The driving assembly 30 is used to drive the plurality of blade assemblies 20 to rotate in a first direction X or a second direction Y to adjust the size of the light passing hole H. The elastic assembly 40 comprises a plurality of elastic members 41, the plurality of elastic members 41 and the protection plate 10' are jointly formed in an integral forming structure, and are used to make the blade assembly 10 always abut against the driving assembly 30, the protection plate 10' is provided with a recess 111, and the elastic member 41 is located in the recess 111. More specifically, the plurality of blade assemblies 20 comprise a guide portion 21, the driving assembly 30 comprises a driving portion 31 corresponding to the guide portion 21, and the plurality of elastic members 41 are used to make the edge of the guide portion 21 of the blade assembly 20 always abut against the driving portion 31 of the driving assembly 30; more specifically, the protection plate 10' comprises a bottom plate 12 or a back plate 13, the bottom plate 12 or the back plate 13 comprises a first surface 11a and a second surface 11b opposite in the direction of the optical axis L, and the elastic member 41 is located in the range defined by the first surface 11a and the second surface 11b.

[0123] The aperture device 100 proposed in the embodiment makes the edge of the guide portion 21 abut against the driving portion 31 of the driving assembly 30 through the elastic assembly 40, because the edge of the guide portion 21 of the blade assembly 20 and the driving portion 31 of the driving assembly 30 are in the abutting state, when the photographing device vibrates, under the limiting action of the driving portion 31, the blade assembly 20 will not move in a small range relative to the driving portion 31 of the driving assembly 30, that is, the diameter of the light passing hole H will not fluctuate, so that the light amount of the light passing hole H remains constant, thereby improving the imaging quality of the photographing device. Secondly, by arranging the elastic member 41 in the range defined by the first surface 11a and the second surface 11b, the elastic member 41 does not protrude from the first surface 11a or the second surface 11b of the bottom plate 12 or the back plate 13, and does not affect the thickness of the aperture device 100, so that the aperture device 100 can maintain the original thickness.

[0124] The structures, connection relationships, extension descriptions and beneficial effects of other components of the aperture device 100 proposed in the embodiment can refer to the above-mentioned embodiments, which will not be described here.

[0125] Referring to FIG. 7, the embodiment of the present application further provides a photographing device, which comprises a lens assembly 200, wherein the lens assembly 200 comprises a first lens group 210, a second lens group 220 and the aperture device 100, and the aperture device 100 is located between the first lens group 210 and the second lens group 220. Of course, the aperture device 100 is not limited to be arranged between the first lens group 210 and the second lens group 220, and in some other embodiments, the aperture device 100 can also be arranged on the object side of the lens assembly, which can be determined according to actual design needs.

[0126] The photographing device provided by the embodiment has the advantages that the diameter of the light passing hole H is not affected by vibration and impact, the imaging quality of the photographing device can be improved, and the assembly and manufacturing difficulty can be reduced.

[0127] The structure, connection relationship, extended description and beneficial effects of other components of the photographing device provided by the embodiment can be referred to the above-mentioned embodiments, and will not be repeated here.

[0128] The embodiment of the present application further provides a motion camera, which comprises a lens assembly 200, wherein the lens assembly 200 comprises the aperture device 100. When the motion camera is subjected to vibration, the elastic assembly provides an elastic force, so that the blade assembly and the driving assembly are always in contact. That is, the edge of the guiding portion 21 of the aperture device 100 always abuts against the driving portion 31 of the driving assembly 30, so that the relative position of the blade assembly 20 and the driving assembly 30 remains stable when the size of the light passing hole H enclosed by the blade assembly 20 is adjusted.

[0129] The motion camera provided by the embodiment has the advantages that the relative position of the blade assembly 20 and the driving assembly 30 remains stable when the size of the light passing hole H enclosed by the blade assembly 20 is adjusted, the imaging quality of the motion camera can be improved, and the assembly and manufacturing difficulty can be reduced.

[0130] The structure, connection relationship, extended description and beneficial effects of other components of the motion camera provided by the embodiment can be referred to the above-mentioned embodiments, and will not be repeated here.

[0131] The embodiment of the present application also provides a movable object, the movable object comprises the lens assembly 200, the lens assembly 200 comprises the aperture device 100, when the movable object is vibrated, the elastic assembly provides an elastic force, so that the blade assembly and the driving assembly are always in contact. That is, the edge of the guide portion 21 of the aperture device 100 always abuts against the driving portion 31 of the driving assembly 30, so that the relative position of the blade assembly 20 and the driving assembly 30 is stable when the size of the light passing hole H enclosed by the blade assembly 20 is adjusted.

[0132] The movable object provided by the embodiment has the advantages that the relative position of the blade assembly 20 and the driving assembly 30 is stable when the size of the light passing hole H enclosed by the blade assembly 20 is adjusted, and the movable object is not affected by vibration and impact, so that the imaging quality of the movable object can be improved. In addition, the movable object has the advantage that the assembly and manufacturing difficulty can be reduced.

[0133] The structure, connection relationship, expansion description and beneficial effects of other components of the movable object provided by the embodiment can be referred to the above embodiment, and details are not described herein.

[0134] The above is only a specific embodiment of the present application, but the protection scope of the present application is not limited to this, any person skilled in the art can easily think of various equivalent modifications or replacements within the technical range disclosed by the present application, and these modifications or replacements should be covered in the protection scope of the present application. Therefore, the protection scope of the present application should be subject to the protection scope of the claims.

Claims

1. An aperture device, characterized in that The application relates to an aperture device, comprising: a blade support; a plurality of blade assemblies arranged around an optical axis of the aperture device, one side of the blade assemblies being connected to the blade support, and the other side of the blade assemblies jointly forming a light passage hole with a diameter adjustable, the blade assemblies comprising guide portions; a driving assembly comprising driving portions corresponding to the guide portions of the blade assemblies, for driving the blade assemblies to rotate along a preset direction through the guide portions, so as to adjust the size of the light passage hole; and a resilient assembly connected to the blade support, the resilient assembly comprising a plurality of resilient members, and at least part of the resilient members jointly forming an integrally formed structure, each of the resilient members being used for abutting against at least one of the blade assemblies, so that the edges of the guide portions always abut against the driving portions of the driving assembly through the elastic force of the resilient members. The application relates to an aperture device, comprising:

2. An aperture device, characterized in that a blade support; a plurality of blade assemblies arranged around an optical axis of the aperture device, one side of the blade assemblies being connected to the blade support, and the other side of the blade assemblies jointly forming a light passage hole with a diameter adjustable, the blade assemblies comprising guide portions; a driving assembly comprising driving portions corresponding to the guide portions of the blade assemblies, for driving the blade assemblies to rotate along a preset direction through the guide portions, so as to adjust the size of the light passage hole; and a resilient assembly comprising a plurality of resilient members and a plurality of limiting portions, the resilient members comprising connecting ends and matching ends, the connecting ends being connected to the blade support, the matching ends being connected to the limiting portions, the limiting portions being matched with the blade assemblies to make the edges of the guide portions of the blade assemblies always abut against the driving portions of the driving assembly through the elastic force of the resilient members, and at least part of the resilient members jointly forming an integrally formed structure with the blade support. The blade support comprises a support plate for supporting the resilient assembly, and at least part of the resilient members jointly form the integrally formed structure with the support plate. The support plate is provided with recessed portions, and the resilient members are located in the recessed portions.

3. An aperture device as claimed in claim 1 or 2, characterised in that The support plate comprises opposite first and second surfaces in the direction of the optical axis, and the resilient members are located in the range defined by the first and second surfaces.

4. The aperture device of claim 3, wherein, The thickness of the resilient members in the direction of the optical axis is less than or equal to the thickness of the support plate in the direction of the optical axis.

5. The aperture device of claim 3, wherein, The blade support further comprises a protection plate located on one side or both sides of the blade assemblies, for protecting the blade assemblies.

6. The aperture device of claim 5, wherein, The protection plate jointly forms an integrally formed structure with the support plate.

7. The aperture device of claim 3, wherein, The protection plate comprises a bottom plate and a back plate, and the support member is located between the bottom plate and the back plate, and jointly forms an integrally formed structure with the bottom plate or the back plate.

8. The aperture device of claim 7, wherein, The blade assemblies are arranged between the bottom plate and the back plate; wherein the resilient assembly is connected to the bottom plate, and the support plate is arranged between the bottom plate and the blade assemblies; or the resilient assembly is connected to the back plate, and the support plate is arranged between the back plate and the blade assemblies.

9. The aperture device of claim 8, wherein, ​ 10. The aperture device of claim 9, wherein, ​ 11. The aperture device of claim 7, wherein, At least one of the support plate and the protection plate is made of metal.

12. The aperture device of claim 11, wherein, The plurality of elastic members are integrally formed with the support plate.

13. The iris device of claim 1 or 2, wherein The blade holder includes a protection plate on one side of the plurality of blade assemblies for protecting the blade assemblies, and at least part of the plurality of elastic members are integrally formed with the protection plate.

14. The aperture device of claim 13, wherein, The protection plate includes a bottom plate and a back plate, and at least part of the plurality of elastic members are integrally formed with the bottom plate or the back plate.

15. The aperture device of claim 14, wherein, The bottom plate or the back plate is provided with a recess, and the elastic members are located in the recess.

16. The aperture device of claim 14, wherein, The bottom plate or the back plate includes opposite first and second surfaces in the optical axis direction, and the elastic members are located within the range between the first and second surfaces.

17. The aperture device of claim 16, wherein, The thickness of the elastic members in the optical axis direction is less than or equal to the thickness of the bottom plate or the back plate in the optical axis direction.

18. The aperture device of claim 14, wherein, The plurality of elastic members are integrally formed with the bottom plate or the back plate.

19. The aperture device of claim 1 or 2, wherein, The elastic assembly further includes a main body, and at least part of the plurality of elastic members are integrally formed with the main body.

20. The aperture device of claim 19, wherein, The number of elastic members is at least two, and the at least two elastic members are arranged at intervals around the optical axis.

21. The aperture device of claim 19, wherein, The elastic members include a first group of elastic members and a second group of elastic members, each of the first and second groups of elastic members includes at least two elastic members arranged in sequence, and at least one of the first and second groups of elastic members is integrally formed.

22. The aperture device of claim 19, wherein, The plurality of elastic members are integrally formed with the main body.

23. The aperture device of claim 19, wherein, The elastic members are in a sheet shape perpendicular to the optical axis direction, or the elastic members are elastic sheets.

24. The aperture device of claim 1 or 2, wherein, The elastic members are integrally formed by etching.

25. The aperture device of claim 1, wherein, The elastic assembly further includes a plurality of limiting portions corresponding to the plurality of elastic members, the plurality of blade assemblies include limiting fitting portions, the limiting portions and the limiting fitting portions are in abutting fit to enable the edges of the guide portions of the blade assemblies to abut against the driving portions of the driving assemblies by the elastic force of the elastic members.

26. The aperture device of claim 25, wherein, Each of the elastic members includes a connecting end connected with the blade holder, and the limiting portion is connected with the elastic member.

27. The aperture device of claim 26, wherein, The blade holder is provided with a pivoting member, and the blade assemblies are connected with the blade holder through the pivoting member.

28. The aperture device of claim 27, wherein, The blade assemblies further include pivoting portions corresponding to the pivoting members, the pivoting members and the pivoting portions are in fit to enable the side of the blade assemblies to be connected with the blade holder, to enable the edges of the guide portions of the blade assemblies to abut against the driving portions of the driving assemblies and the pivoting portions of the blade assemblies to abut against the pivoting members of the blade holder by the elastic force of the elastic members.

29. The aperture device of claim 27, wherein, The blade assemblies further include pivoting portions corresponding to the pivoting members, the pivoting members are pivoting shafts, and the pivoting portions are pivoting holes, or the pivoting members are pivoting holes, and the pivoting portions are pivoting shafts.

30. The aperture device of claim 26, wherein, Each of the elastic members further includes a fitting end, and the limiting portion is connected with the elastic member through the fitting end.

31. The aperture device of claim 30, wherein, The fitting end includes a ring-shaped portion, and the limiting portion protrudes from the ring-shaped portion.

32. The aperture device of claim 30, wherein, Each of the elastic members further comprises a stress adjusting portion, the connecting end is connected with the limiting portion through the stress adjusting portion, and the stress adjusting portion comprises at least one bending.

33. The aperture device of claim 1 or 2, wherein, One side of the vane assembly is rotatably connected with the vane support.

34. The aperture device of claim 33, wherein, The vane assembly is rotatably connected in a manner that the pivot shaft is matched with the pivot hole, wherein the pivot hole is larger than the size of the pivot shaft.

35. The aperture device of claim 1 or 2, wherein, The elastic assembly and the vane support are integrally formed.

36. The aperture device of claim 35, wherein, The vane support comprises a recess, the recess comprises a first side wall close to the pivot portion of the vane support, the fitting end of the elastic member is arranged close to the first side wall, and the connecting end of the elastic member is connected with the first side wall.

37. The aperture device of claim 36, wherein, The recess further comprises a second side wall opposite to the first side wall, the elastic member further comprises a stress adjusting portion, the stress adjusting portion extends from the connecting end to the second side wall, reversely bends and extends to be connected with the fitting end after extending close to the second side wall.

38. The aperture device of claim 35, wherein, The vane support comprises a support plate and a bottom plate, the elastic member and the support plate and the bottom plate are integrally formed, the bottom plate is provided with a recess, and the recess is a hollow structure or a groove.

39. The aperture device of claim 1 or 2, wherein, The elastic assembly comprises a plurality of elastic limiting portions and a main body, and the plurality of elastic limiting portions and the main body are integrally formed.

40. The aperture device of claim 39, wherein, The elastic limiting portion comprises an elastic member and a limiting portion, the elastic member comprises a connecting end, a stress adjusting portion and a fitting end, the connecting end is used for fixedly connecting one end of the elastic member with the vane support, the stress adjusting portion is used for reducing the stress between the connecting end and the fitting end, and the fitting end is used for connecting the limiting portion, so that the elastic member applies elastic force to the edge of the guide portion of the vane assembly through the limiting portion.

41. The aperture device of claim 39, wherein, The main body is provided with a avoiding hole corresponding to the guide portion of the vane assembly, so that the driving portion of the driving assembly is matched with the guide portion of the vane assembly.

42. The aperture device of claim 1, wherein, The plurality of vane assemblies further comprise a pivot portion and a limiting fitting portion, the vane assembly is rotatably connected with the vane support through the pivot portion, the limiting fitting portion is located between the pivot portion and the guide portion in the radial direction of the aperture device, and is used for abutting against the elastic assembly, so that the elastic assembly generates elastic force.

43. The aperture device of claim 42, wherein, The distance between the limiting fitting portion and the pivot portion is less than a preset distance, or the distance between the limiting fitting portion and the pivot portion is less than the distance between the limiting fitting portion and the guide portion.

44. The aperture device of claim 42, wherein, The limiting fitting portion and the guide portion are arranged at intervals in the direction around the optical axis, and the pivot portion is located outside the limiting fitting portion and the guide portion.

45. The aperture device of claim 44, wherein, The limiting fitting portions of the plurality of vanes are arranged at equal intervals in the direction around the optical axis, and / or the guide portions of the plurality of vane assemblies are arranged at equal intervals in the direction around the optical axis.

46. The aperture device of claim 1 or 2, wherein, The driving portion and the guide portion are movably connected.

47. The aperture device of claim 46, wherein, The guide portion is a guide groove, the driving portion is a driving shaft, or the guide portion is a guide shaft, and the driving portion is a driving groove.

48. The aperture device of claims 1 or 2, wherein, The plurality of leaf assembly is stacked along the axial direction of the light hole.

49. The aperture device of claim 48, wherein, The force direction of the elastic assembly to the plurality of leaf assembly is consistent with the movement direction of the leaf assembly when the aperture of the leaf assembly increases.

50. The aperture device of claim 48, wherein, The force direction of the elastic assembly to the plurality of leaf assembly is consistent with the movement direction of the leaf assembly when the aperture of the leaf assembly decreases.

51. The aperture device of claims 1 or 2, wherein, The plurality of leaf assembly includes a first leaf and a second leaf, the number of the first leaf and the second leaf is the same, and the first leaf and the second leaf are arranged in overlap along the axial direction of the light hole.

52. The aperture device of claim 51, wherein, The number of the first leaf and the second leaf is greater than two.

53. The aperture device of claim 52, wherein, The plurality of first leaf is located in the same plane, and the plurality of second leaf is located in another plane different from the plurality of first plane.

54. The aperture device of claims 1 or 2, wherein, The driving assembly includes a driving member and a driving disc, the driving member drives the leaf assembly to move through the driving disc.

55. The aperture device of claim 54, wherein, The driving assembly further includes a transmission assembly, the driving member is connected with the driving disc through the transmission assembly to drive the driving disc to rotate around the optical axis, and the driving part is located on the driving disc or connected with the driving disc.

56. The aperture device of claim 55, wherein, The transmission assembly includes a driving gear and a driven gear, the driving gear is connected with the driving member, the driven gear is connected with the driving disc, and the driving gear is engaged with the driven gear.

57. The aperture device of claim 56, wherein, The driven gear is integrally formed with the driving disc.

58. The aperture device of claim 56, wherein, The driving member is a motor.

59. The aperture device of claim 56, wherein, The distance between the driving member and the leaf assembly is less than the distance between the driving disc and the leaf assembly.

60. The aperture device of claims 1 or 2, wherein, The driving assembly includes a driving disc, a first magnetic member and a second magnetic member, the driving part is arranged on the driving disc, the first magnetic member is arranged on the driving disc, and the second magnetic member is arranged on the aperture device, the first magnetic member and the second magnetic member interact to generate the force for driving the driving disc.

61. The aperture device of claim 60, wherein, The aperture device further includes a fixing seat, the second magnetic member is arranged on the fixing seat, and the first magnetic member on the driving disc interacts with the second magnetic member on the fixing seat to generate the force for driving the driving disc to rotate.

62. The aperture device of claim 60, wherein, The first magnetic member is a permanent magnet, and the second magnetic member is an electromagnet, or the first magnetic member is an electromagnet, and the second magnetic member is a permanent magnet.

63. An aperture device, characterized by It includes: A leaf support including a protection plate; A plurality of leaf assemblies arranged around the optical axis of the aperture device, one side of the leaf assembly is connected with the leaf support, and the other side of the plurality of leaf assemblies collectively forms a light hole with adjustable aperture, and the protection plate is located on one side of the plurality of leaf assemblies to protect the plurality of leaf assemblies; A driving assembly for driving the plurality of leaf assemblies to rotate in a predetermined direction to adjust the size of the light hole; And An elastic assembly including a plurality of elastic members for providing an elastic force to keep the leaf assembly abutting the driving assembly, the protection plate is provided with a recess, and the elastic member is located in the recess.

64. A camera, comprising: It includes: The lens assembly and the aperture device of any one of claims 1-63, the aperture device is located inside the lens assembly or on one side of the lens assembly.

65. The aperture device of claim 64, wherein, The lens assembly comprises a first lens group and a second lens group, and the aperture device is located between the first lens group and the second lens group.

66. A sports camera, comprising: Comprising: A lens assembly comprising the aperture device of claims 1-63.

67. The action camera of claim 66, wherein, The elastic assembly provides an elastic force so that the vane assembly and the driving assembly are always in contact when the action camera is subjected to vibration.

68. A moveable object, comprising: Comprising: A power unit for providing power for the movable object to move, and A lens assembly, the lens assembly employs the aperture device of any one of claims 1-63.

69. The movable object of claim 68, wherein, The elastic assembly provides an elastic force so that the vane assembly and the driving assembly are always in contact when the movable object is subjected to vibration.

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