Aperture device, camera device, and optical device

Abstract

An aperture device according to this embodiment includes: a fixed portion; a movable portion disposed on the fixed portion; a magnet and a coil that move the movable portion; and a blade portion that forms an aperture whose size varies according to the movement of the movable portion, wherein the magnet is formed in an annular shape having alternating N and S poles, the coil is formed in an annular shape having an aperture, and the aperture of the coil is positioned facing the boundary between the different poles of the magnet.

Description

Technical Field

[0001] This embodiment relates to an aperture device, a camera device, and an optical device. Background Technology

[0002] Recent smartphones are equipped with cameras capable of capturing high-resolution photos and videos.

[0003] In particular, recent smartphone cameras offer a number of features such as autofocus, image stabilization, and zoom, which have provided high user satisfaction.

[0004] However, the performance of conventional smartphone cameras is limited in low-light environments. This can result in images captured in low-light conditions being noisy and lacking sharpness. Summary of the Invention

[0005] Technical issues

[0006] The purpose of this embodiment is to provide a camera device that can be used even in dimly lit environments without performance limitations. Furthermore, the purpose of this embodiment is to provide an aperture device for the camera device described above.

[0007] Technical solution

[0008] To solve the above technical problems, according to embodiments of the present disclosure, the aperture device includes: a fixed portion; a movable portion disposed on the fixed portion; a magnet and a coil configured to move the movable portion; and a blade portion forming an aperture whose size varies according to the movement of the movable portion, wherein the magnet is formed in an annular shape having alternating N and S poles, the coil is formed in an annular shape including the aperture, and the aperture of the coil is configured to face the boundary surfaces of the different poles of the magnet.

[0009] A coil may include a circumferential region and a radial region. The circumferential region of the coil may not face the magnet, while the radial region of the coil may face the magnet.

[0010] The fixed portion may include a first protrusion connected to a first hole in the blade portion, and the movable portion may include a second protrusion connected to a second hole in the blade portion, wherein the size of the first hole may be smaller than the size of the second hole.

[0011] The moving part may include a rotating body, a magnet may be disposed on one surface of the rotating body, and a first reinforcing member may be disposed on the other surface of the rotating body.

[0012] The fixing part may include a housing and a substrate disposed on the housing, and the coil may be formed as a patterned coil on the substrate.

[0013] A second reinforcing member may be provided on one side of the housing, and a third reinforcing member may be provided between the other surface of the housing and the substrate.

[0014] To address the above technical problems, according to embodiments of this disclosure, a camera device includes: a printed circuit board; an image sensor disposed on the printed circuit board; a lens disposed on the image sensor; and an aperture device according to any one of claims 1 to 6, the aperture device being disposed on the lens.

[0015] To address the above technical problems, according to embodiments of this disclosure, the optical device includes: a main body; a camera device of claim 7, the camera device being disposed on the main body; and a display, the display being disposed on the main body, and outputting one or more of video and images captured by the camera device.

[0016] To solve the above technical problems, according to the embodiments of this disclosure, the camera module includes: a lens module, which includes a lens barrel and a lens portion; a fixed portion disposed inside the lens barrel; a movable portion disposed on the fixed portion; a magnet disposed on the movable portion; a coil disposed outside the lens barrel; and a plurality of blades forming a hole, the size of which changes according to the movement of the movable portion.

[0017] The magnet can be formed into a ring shape with alternating N and S poles, the coil can be formed into a ring shape including a hole, and the hole of the coil can be arranged to overlap with the boundary surface of the different poles of the magnet in the optical axis direction.

[0018] The coil may include a peripheral region and a radial region. The peripheral region of the coil may not overlap with the magnet in the optical axis direction, while the radial region of the coil may overlap with the magnet in the optical axis direction.

[0019] The fixed part includes a first protrusion that connects to a first hole of a plurality of blades, and the movable part includes a second protrusion that connects to a second hole of a plurality of blades, wherein the size of the first hole may be smaller than the size of the second hole.

[0020] To solve the above technical problems, according to another embodiment of the present disclosure, the aperture device includes: a housing; a cover disposed on the housing; a rotating body disposed below the housing; a magnet and a coil that move the rotating body; and a blade portion disposed between the cover and the housing and forming a blade aperture, the size of which varies according to the movement of the rotating body, wherein the coil is disposed on the cover.

[0021] The coil can be formed into a patterned coil on the cover.

[0022] The magnet is mounted on the rotating body, and the magnet can be formed into a ring shape with alternating N and S poles.

[0023] The coil can overlap with the boundary surface between the N and S poles of the magnet in the optical axis direction.

[0024] The housing may include a first protrusion that engages with a first hole in the cover and a third hole in the blade portion, and the rotating body may include a second protrusion that engages with a third hole in the cover and a fourth hole in the blade portion.

[0025] The size of the first hole in the cover can be smaller than the size of the second hole in the cover, and the size of the third hole in the blade portion can be smaller than the size of the fourth hole in the blade portion.

[0026] The housing may include a guide hole through which the second protrusion of the rotating body passes.

[0027] The aperture device may include a magnetic yoke that overlaps with the magnet in the optical axis direction.

[0028] The camera device according to this embodiment may include: a printed circuit board; an image sensor disposed on the printed circuit board; a lens disposed on the image sensor; and an aperture device disposed on the lens.

[0029] The optical device according to this embodiment may include: a main body; a camera device disposed on the main body; and a display disposed on the main body, which outputs one or more of video and images captured by the camera device.

[0030] Beneficial effects

[0031] This implementation allows the use of a smartphone's camera function without performance limitations, even in dimly lit environments.

[0032] In addition, by forming the magnet into an ultra-thin ring shape, the driving distance during rotation is reduced and the weight is reduced, thereby minimizing the power consumption used in the driving aperture device.

[0033] Furthermore, an ultra-thin aperture device can be achieved by forming the cover, substrate, and coil into a single body. Attached Figure Description

[0034] Figure 1 This is a perspective view of the aperture device according to this embodiment.

[0035] Figure 2 This is a perspective view of the aperture device according to this embodiment, viewed from different directions.

[0036] Figure 3This is an exploded perspective view of the aperture device according to this embodiment.

[0037] Figure 4 This is an exploded perspective view of the aperture device according to this embodiment, viewed from different angles.

[0038] Figure 5 This is a cross-sectional view of the aperture device according to this embodiment.

[0039] Figure 6 This is a perspective view of the cover member according to this embodiment.

[0040] Figure 7 The illustration shows a bottom perspective view of the cover member according to this embodiment.

[0041] Figure 8 This is a perspective view of the spacer according to this embodiment.

[0042] Figure 9 This is a perspective view illustrating the blade portion and spacer according to this embodiment.

[0043] Figure 10 The illustration shows a bottom perspective view of the blade portion and spacer according to this embodiment.

[0044] Figure 11 This is a perspective view illustrating the connection state of the housing, rotating body, and spacer according to this embodiment.

[0045] Figure 12 This is a perspective view illustrating the state in which the rotating body and the first magnetic yoke are connected according to this embodiment.

[0046] Figure 13 This is a perspective view illustrating the connection state of the rotating body and the magnet according to this embodiment.

[0047] Figure 14 This is a perspective view of the housing according to this embodiment.

[0048] Figure 15 This is a perspective view illustrating the connection state of the housing and the substrate according to this embodiment.

[0049] Figure 16 This is a perspective view illustrating the connection state of the housing, substrate, and coil according to this embodiment.

[0050] Figure 17 This is a perspective view illustrating the connection state of the housing, coil, and magnet according to this embodiment.

[0051] Figure 18 This is a perspective view illustrating the connection state of the coil and magnet according to this embodiment.

[0052] Figure 19 This is a perspective view illustrating the connection state of the housing, rotating body, and first magnetic yoke according to this embodiment.

[0053] Figure 20 This is a view used to explain the combination of the aperture device and lens module according to this embodiment.

[0054] Figure 21 This illustration shows a cross-sectional view of an aperture device and a lens module according to another embodiment of the present disclosure.

[0055] Figure 22 It is used to explain the settings Figure 21 A view of the magnet in the aperture device.

[0056] Figure 23 This is a cross-sectional view illustrating an aperture device and lens module according to yet another embodiment of the present disclosure.

[0057] Figure 24 It is used to explain the settings Figure 23 A view of the magnet and coil in the aperture device.

[0058] Figure 25 It is used to explain the settings Figure 23 A view of the magnet in the aperture device.

[0059] Figure 26 This is a view used to explain the arrangement of the magnet and coil of the aperture device according to this embodiment.

[0060] Figure 27 It is used for setting the diagram. Figure 23 A view of the coil in the aperture device.

[0061] Figure 28 This is an exploded perspective view of the aperture device according to this embodiment.

[0062] Figure 29 This is a perspective view of the cover of the aperture device according to this embodiment.

[0063] Figure 30 This is a perspective view of the housing of the aperture device according to this embodiment.

[0064] Figure 31 This is a perspective view illustrating the rotating body and magnet of the aperture device according to this embodiment.

[0065] Figure 32 This is a perspective view of the blade portion of the aperture device according to this embodiment.

[0066] Figure 33This is an exploded perspective view of the camera device according to this embodiment.

[0067] Figure 34 This is a perspective view of the optical device according to this embodiment. Detailed Implementation

[0068] In the following, preferred embodiments of the present disclosure will be described in detail with reference to the accompanying drawings.

[0069] However, the technical concept of this disclosure is not limited to some of the embodiments described, but can be implemented in various different forms, and one or more components between embodiments can be selectively combined or substituted and used within the scope of the technical concept of this disclosure.

[0070] Furthermore, unless explicitly and specifically defined and described, the terms (including technical and scientific terms) used in this embodiment may be interpreted as meanings that are generally understood by one of ordinary skill in the art to which this embodiment pertains, and commonly used terms, such as those defined in dictionaries, may be interpreted in the context of the relevant art.

[0071] Furthermore, the terminology used in this embodiment is for describing the implementation method and is not intended to limit this disclosure.

[0072] In this specification, unless otherwise specified in the phrase, the singular form may also include the plural form, and when it is described as “at least one (or one or more) of A, B, C”, it may include one or more of all combinations that can be made with A, B, C.

[0073] Furthermore, when describing the components of this embodiment, terms such as first, second, A, B, (a), (b), etc., may be used. These terms are intended only to distinguish the components from other components and are not intended to limit the nature, order, or sequence of the components.

[0074] In addition, when a component is described as being “connected,” “linked,” or “close” to another component, this can include not only cases where the component is directly “connected,” “linked,” or “close” to another component, but also cases where the component is “connected,” “linked,” or “close” to another component through another component between the component and the other component.

[0075] Additionally, when described as being formed or positioned "above" or "below" each component, "above" or "below" includes not only cases where two components are in direct contact with each other, but also cases where one or more other components are formed or positioned between the two components. Furthermore, the expression "above" or "below" can include both downward and upward directions based on a component.

[0076] The configuration of the aperture device according to this embodiment will now be described with reference to the accompanying drawings.

[0077] Figure 1 This is a perspective view of the aperture device according to this embodiment. Figure 2 This is a perspective view of the aperture device according to this embodiment, viewed from different directions. Figure 3 The diagram shows an exploded perspective view of the aperture device according to this embodiment. Figure 4 The diagram shows an exploded perspective view of the aperture device according to this embodiment, viewed from different angles. Figure 5 The illustration shows a cross-sectional view of the aperture device according to this embodiment. Figure 6 The illustration shows a perspective view of the cover component according to this embodiment. Figure 7 The illustration shows a bottom perspective view of the cover member according to this embodiment. Figure 8 This is a perspective view of the spacer according to this embodiment. Figure 9 This is a perspective view illustrating the blade portion and the spacer according to this embodiment. Figure 10 The illustration shows a bottom perspective view of the blade portion and the spacer according to this embodiment. Figure 11 This is a perspective view illustrating the connection state of the housing, rotating body, and spacer according to this embodiment. Figure 12 This is a perspective view illustrating the connection state between the rotating body and the first magnetic yoke according to this embodiment. Figure 13 This is a perspective view illustrating the connection state between the rotating body and the magnet according to this embodiment. Figure 14 The illustration shows a perspective view of the housing according to this embodiment. Figure 15 This is a perspective view illustrating the connection state of the housing and the substrate according to this embodiment. Figure 16 This is a perspective view illustrating the connection state of the housing, substrate, and coil according to this embodiment. Figure 17 This is a perspective view illustrating the connection state of the housing, coil, and magnet according to this embodiment. Figure 18 This is a perspective view illustrating the connection state of the coil and magnet according to this embodiment. Figure 19 This is a perspective view illustrating the connection state of the housing, rotating body, and first magnetic yoke according to this embodiment.

[0078] The aperture device 100 can be an aperture. The aperture device 100 can control the amount of light passing through the lens. The aperture device 100 can control the amount of light incident on the image sensor 60. The aperture device 100 can control the size of the aperture through which light passes.

[0079] The aperture device 100 can be mounted on the lens. The aperture device 100 can be mounted on the lens. The aperture device 100 can be connected to the lens. The aperture device 100 can be fixed to the lens. The aperture device 100 can move integrally with the lens. The aperture device 100 can move together with the lens. The aperture device 100 can move together with the lens along the optical axis.

[0080] The aperture device 100 may include a blade portion 150 for controlling the amount of incident light. For example, the blade portion 150 may be movable and may form an entrance aperture (or opening), wherein the size may vary in multiple levels or continuously depending on the position or displacement of the blade portion 150. The aperture device 100 may include an entrance aperture having different sizes that may vary in multiple levels or continuously, and light may enter through the entrance aperture (or opening).

[0081] The aperture device 100 may include a fixed portion. The fixed portion may be a stator. The fixed portion may be a cover member 300. The fixed portion may be a housing 140. The fixed portion may be a portion fixed relative to a moving portion. The fixed portion may movably support the moving portion.

[0082] The aperture device 100 may include a moving part. The moving part may be a rotor. The moving part may be a rotating body 110. The moving part may be a movable part. The moving part may be a moving device. The moving part may be a mover. The moving part may be a carrier.

[0083] In the aperture device 100, the moving part (or rotating part) can be an element or component that moves or rotates relative to the fixed part. In the aperture device 100, the fixed part can be an element or component that does not move or rotate with the moving part of the aperture device 100. In the aperture device 100, the fixed part can be a fixed element or component used to move the moving part or drive the blade portion 150. The fixed part can be described as a "fixed body".

[0084] In the aperture device 100, the moving part may include a rotating body 110 and a blade portion 150. In the aperture device 100, the moving part may include a component (e.g., a magnet 130) connected to the rotating body 110. In the aperture device 100, the moving part may include a spacer 160.

[0085] In the aperture device 100, the fixing portion may include at least one of a housing 140 and a cover member 300. In the aperture device 100, the fixing portion may include components connected to the housing 140 or the cover member 300. In the aperture device 100, the fixing portion may include at least one of a circuit board 190 and a coil 180. In the aperture device 100, the fixing portion may also include configurations connected to the circuit board 190 (e.g., position sensor 185, coil 180, reinforcing member 173).

[0086] The aperture device 100 may include a cover member 300 for accommodating the rotating body 110. The cover member 300 may be referred to as a "cover". The cover member 300 may be disposed on the rotating body 110 and may be coupled to the housing 140.

[0087] The cover member 300 may be in the form of having an open lower side. The cover member 300 may include an upper plate 301 and a side plate 302. The side plate 302 may be connected to the upper plate 301. The side plate 302 may extend downward from the upper plate 301.

[0088] The cover member 300 may include an opening 303 formed in the upper plate 301. The opening 303 may be a hole or hollow portion penetrating the upper plate 301 along a first direction OA. The upper plate 301 may be circular in shape, but in other embodiments, the upper plate 301 may have a polygonal shape, such as a square or pentagon. The side plate 302 may be circular in shape, but in other embodiments, the side plate 302 may have a polygonal shape, such as a square or pentagon.

[0089] The cover member 300 may include connection holes 58: 58A to 58H formed in the upper plate 301. The connection holes 58 may engage with first protrusions 71: 71A to 71H of the housing 140 described below, thereby securing the cover member 300 and the housing 140. The connection holes 58 may correspond to the first protrusions 71 of the housing 140 in a first direction. The connection holes 58 may be shaped to penetrate the upper plate 301. The connection holes 58 may be shaped to be recessed from the lower surface of the upper plate 301.

[0090] The connecting hole 58 may have a shape corresponding to the first protrusion 71 of the housing 140, such as a circular shape. At least a portion (e.g., the upper end) of the first protrusion 71 may be disposed within the connecting hole 58. At least a portion (e.g., the upper end) of the first protrusion 71 may overlap with the connecting hole 58 in a direction perpendicular to the first direction. At least a portion (e.g., the upper end) of the first protrusion 71 may contact the connecting hole 58. At least a portion (e.g., the upper end) of the first protrusion 71 may be spaced apart from the connecting hole 58.

[0091] The cover member 300 may include guide holes 59: 59A to 59H formed in the upper plate 301. The guide holes 59 may be clearance holes for avoiding spatial interference with the second protrusions 21: 21A to 21H of the rotating body 110 described below. The guide holes 59 may correspond to, be opposite to, or overlap with the second protrusions 21 of the rotating body 110 in a first direction. A plurality of guide holes 59A to 59H may be spaced apart from each other around the opening 303 of the upper plate 301. A pair of corresponding recesses (e.g., 58A) and recesses (e.g., 59A) may be arranged adjacent to each other. In this case, a pair of recesses (e.g., 58A) and recesses (e.g., 59A) may correspond to a pair of first protrusions (e.g., 71A) and second protrusions (e.g., 21A) connected to a single blade (e.g., 150A).

[0092] The guide hole 59 may be shaped to penetrate the upper plate 301. The guide hole 59 may be recessed from the lower surface of the upper plate 301. The guide hole 59 may extend along the path of movement of the second protrusion 21 of the rotating body 110. This is because the lower surface of the upper plate 301 of the cover member 300 must not interfere with the movement of the second protrusion 21 of the rotating body 110. The second protrusion 21 may be curved along its path of movement, and the guide hole 59 may include a twisted or curved shape. The extension length of the guide hole 59 in the direction of movement of the second protrusion 21 may be greater than the diameter of the second protrusion 21.

[0093] At least a portion (e.g., the upper end) of the second protrusion 21 of the rotating body 110 may be disposed within the guide hole 59. At least a portion (e.g., the upper end) of the second protrusion 21 may overlap with the guide hole 59 in a direction perpendicular to the first direction. At least a portion (e.g., the upper portion) of the second protrusion 21 may be spaced apart from the guide hole 59. The upper surface of the second protrusion 21 may be spaced apart from the lower surface of the guide hole 59. This is because the second protrusion 21 must be movable.

[0094] The cover member 300 may include protrusions 57: 57A to 57H formed on the lower surface of the upper plate 301. The protrusions 57 can press against the blade portion 150 and the spacer 160 described below along the first direction OA. This prevents the blade portion 150 from moving along the first direction OA during rotation.

[0095] The side plate 302 of the upper plate 301 can be connected to the housing 140. The cover member 300 may include a connecting plate 304 extending downward from the upper plate 301. The length of the downwardly extending connecting plate 304 may be longer than the length of the downwardly extending side plate 302. The connecting plate 304 can be fitted and connected to the side of the housing 140.

[0096] Blade portions 150: 151, 152 may be disposed within the cover member 300. Blade portions 150 may be disposed within the housing 140. Blade portions 150 may be disposed on the rotating body 110. Blade portions 150 may include openings corresponding to, opposite to, or overlapping with the opening 303 of the cover member 300.

[0097] The blade portion 150 can adjust the size of the opening into which light is incident. The opening of the blade portion 150 can correspond to or be opposite to the opening 161 of the spacer 160 in the first direction OA. At least a portion of the opening of the blade portion 150 can overlap with the opening 161 of the spacer 160 in the first direction OA.

[0098] The blade portion 150 may include a plurality of blades 151A to 151D, 152A to 152D. The number of blades may be eight. In other embodiments, the number of blades may be two to five, or seven or more.

[0099] The plurality of blades 151A to 151D, 152A to 152D can form an opening. For example, each of the plurality of blades 151A to 151D, 152A to 152D can form an opening by being configured such that at least a portion of the blade overlaps in a first direction.

[0100] Some of the blades 151A, 151C among the plurality of blades 151A to 151D can be disposed on the remaining portions 151B, 151D among the plurality of blades 151A to 151D. For example, the plurality of blades 151A to 151D, 152A to 152D can be disposed around a centerline and can be disposed around a centerline. In this case, the centerline can be a straight line with the same optical axis. Alternatively, the centerline can be a straight line parallel to the optical axis and passing through the center 101 of the opening, and the opening can be an opening 303 of the cover member 300, an opening 161 of the blade portion 150, an opening 161 of the spacer 160, an opening of the rotating body 110, or an opening 144 of the housing 140.

[0101] Any blade (e.g., 151A) may be configured to overlap with an adjacent or neighboring blade (e.g., 151B to 151D) in a first direction. For example, multiple blades 151A to 151D, 152A to 152D may be alternately arranged on the upper or lower side in a clockwise or counterclockwise direction. In another embodiment, multiple blades 151A to 151D, 152A to 152D may be sequentially stacked in an upper or lower direction in a clockwise or counterclockwise direction.

[0102] For example, at least a portion of the inner peripheral surface of each of blades 151A to 151D, 152A to 152D may include a bent or curved portion. For example, the inner peripheral surface of each of blades 151A to 151D, 152A to 152D may include a curved or concave portion. For example, the curved or concave portion of each of blades 151A to 151D, 152A to 152D may be rounded toward the optical axis. The shape of the opening 303 viewed from above or along the first direction may include at least one of a circle, an ellipse, or a polygon (e.g., a triangle, a square, a pentagon, or a hexagon). Each inner peripheral surface of blades 151A to 151D, 152A to 152D may be divided into multiple regions, some of which may be formed as curved surfaces, and others as flat surfaces. Thus, the blade aperture can be implemented in a nearly circular shape.

[0103] At least a portion of the blade portion 150 may be coupled to the housing 140, and at least another portion of the blade portion 150 may be coupled to the rotating body 110. The blade portion 150 may include a first portion coupled to the housing 140 and a second portion coupled to the rotating body 110. For example, the blade portion 150 may be rotatable about the first portion of the blade portion 150, which serves as an axis, and the second portion of the blade portion 150 may move or rotate together with the rotating body 110.

[0104] The blade portion 150 may include first holes 51: 51A to 51D, 53: 53A to 53D for engagement with the first protrusion 71 of the housing 140. The first holes 51, 53 of the blade portion 150 may be fitted or inserted into the first protrusion 71 of the housing 140, such that the blade portion 150 can rotate.

[0105] The blade portion 150 may include second holes 52: 52A to 52D, 54: 54A to 54D for connection with the second protrusion 21 of the rotating body 110. The second holes 52, 54 of the blade portion 150 may be fitted or inserted into the second protrusion 21 of the rotating body 110, so that the blade portion 150 can rotate and move.

[0106] When the first holes 51 and 53 of the blade portion 150 are fitted to the first protrusion 71, the blade portion 150 can only rotate around the first protrusion 71. When the second protrusion 21 is inserted into the second holes 52 and 54 of the blade portion 150, the second holes 52 and 54 of the blade portion 150 can extend in one direction, allowing the second protrusion 21 to move. The second holes 52 and 54 can extend in a direction intersecting the rotational direction of the blade portion 150 centered on the first protrusion 71.

[0107] The second holes 52 and 54 of the blade portion 150 can be formed to correspond to the path along which the second protrusion 21 of the rotating body 110 moves. The second holes 52 and 54 of the blade portion 150 can extend to guide the second protrusion 21 of the rotating body 110 along its path of movement. The second holes 52 and 54 of the blade portion 150 can extend or be formed at a certain angle to the rotation direction of the rotating body 110.

[0108] The aperture assembly 100 may include spacers 160 disposed between some of the plurality of blades and the remaining blades. The spacers 160 may be used to support at least a portion of the blade portions 150. The spacers 160 may support at least one of the blades 151A to 151D, 152A to 152D. Among the plurality of blades 151A to 151D, 152A to 152D, a blade disposed on one surface of the spacers 160 may be referred to as a first blade portion 151, and a blade disposed on the other surface of the spacers 160 may be referred to as a second blade portion 152. The spacers 160 may be referred to as a "substrate" or a "support plate".

[0109] The spacer 160 may have a circular opening 161. The opening 161 may be a through hole. The shape of the opening of the blade portion 150 may be polygonal or circular depending on the position of the blades 151A to 151D, 152A to 152D. The spacer 160 may be used to make the opening of the aperture device 100 for receiving light incident from the outside circular.

[0110] The spacer 160 may include connecting holes 62:62A to 62H into which the second protrusion 21 of the rotating body 110 is inserted. The connecting holes 62 may be formed at positions corresponding to guide holes 59 formed in the upper plate 301 of the cover member 300. The plurality of connecting holes 62:62A to 62H may be spaced apart from each other around the opening 161 of the spacer 160. The connecting holes 62 may extend along the path of movement of the second protrusion 21 of the rotating body 110. This is because the spacer 160 must not interfere with the movement of the second protrusion 21 of the rotating body 110. The second protrusion 21 may be curved along its path of movement, and the connecting holes 62 may have a twisted or bent shape.

[0111] The spacer 160 may include clearance portions 63: 63A to 63H to avoid spatial interference with the first protrusion 71 of the housing 140. The clearance portion 63 may be a recessed groove or a through-hole formed from the outer surface of the spacer 160. For example, the clearance portion 63 of the spacer 160 may be a through-hole. The clearance portion 63 of the spacer 160 may be a groove.

[0112] In the adjacent regions of some of the clearance portions 63A, 63C, 63E, and 63G in the clearance portions 63A to 63H, seating grooves 64: 64A to 64D, which are recessed grooves formed from the outer surface of the spacer 160, can be formed. The seating grooves 64 can be formed in a shape corresponding to the protrusions 72: 72A to 72D that protrude from the side plate of the housing 140. When the seating grooves 64 are fitted to the protrusions 72, movement in the rotational direction is prevented, and the position can be fixed.

[0113] The rotating body 110 may be disposed within the cover member 300. The rotating body 110 may be disposed below the blade portion 150. The rotating body 110 may be rotatable. The rotating body 110 may be connected to the blade portion 150, and the opening of the blade portion 150 may be changed by rotating the rotating body 110.

[0114] The rotating body 110 may include an opening that corresponds to or is opposite to the opening of the blade portion 150, the opening 303 of the cover member 300, or the opening 161 of the spacer 160 in a first direction. The opening of the rotating body 110 may be a through hole or a hollow portion that penetrates the rotating body 110 in the first direction.

[0115] The rotating body 110 may be referred to as a "rotor", "drive body", "drive plate", "rotating plate", "rotating frame", "moving plate", "moving body", "rotating ring", "drive ring" or "drive frame".

[0116] The size (e.g., area or diameter) of the opening in the rotating body 110 can be larger than the size of the opening in the blade portion 150. In this case, the size of the opening in the blade portion 150 can be the maximum size (maximum area or maximum diameter). In another embodiment, the size (e.g., area or diameter) of the opening 401 in the rotating body 110 can be the same as the size of the opening in the blade portion 150.

[0117] The size (e.g., area or diameter) of the opening of the rotating body 110 may be larger than the size of the opening 161 of the spacer 160. In another embodiment, the size (e.g., area or diameter) of the opening 401 of the rotating body 110 may be the same as the size of the opening 161 of the spacer 160.

[0118] The rotating body 110 may include a circular annular shape for facilitating rotation. One surface of the rotating body 110 may include a first receiving portion for receiving the first reinforcing member 120. Another surface of the rotating body 110 may include a second receiving portion for receiving the magnet 130. For example, the first and second receiving portions of the rotating body 110 may be a "first groove and second groove" or a "first receiving groove and second receiving groove". One surface of the rotating body 110 may include a first surface 24 connected to an inner peripheral surface and a second surface 23 connected to an outer surface. The first receiving portion for receiving the first reinforcing member 120 may be disposed between the first surface 24 and the second surface 23.

[0119] The first reinforcing member 120 can prevent the rotating body 110 from being damaged, deformed, or broken due to impact or external force. For example, the first reinforcing member 120 may include at least one of a magnetic body, a metallic material, or an injection molding material (e.g., plastic or resin). The first reinforcing member 120 can be integrally coupled to the rotating body 110 by an insert injection molding method. The first reinforcing member 120 can also perform a yoke function to enhance the electromagnetic force between the coil 180 and the magnet 130. The first reinforcing member 120 can be configured to prevent the magnetic force of the magnet 130 from escaping and to maintain a holding force.

[0120] The rotating body 110 may include a second protrusion 21: 21A to 21H for rotating or moving the blade portion 150. The second protrusion 21 may be connected to or linked to the blade portion 150. The second protrusion 21 may be referred to as a "motion shaft," "cylindrical portion," "protrusion," or "connecting shaft." For example, the second protrusion 21 may have a cylindrical or rod-shaped shape.

[0121] The rotating body 110 may include a plurality of second protrusions 21A to 21H corresponding to a plurality of blades 151A to 151D, 152A to 152D. For example, the number of second protrusions 21 may be equal to the number of blades. The plurality of second protrusions 21A to 21H may be spaced apart from each other.

[0122] The second protrusion 21 may protrude or extend from one surface of the rotating body 110. The second protrusion 21 may protrude or extend from one surface in a direction toward the blade portion 150. The second protrusion 21 may protrude from the first surface 24 connected to the inner peripheral surface of the rotating body 110.

[0123] One end of the second protrusion 21 may be inserted into or fitted into the second holes 52, 54 of the blade portion 150. For example, one end of each of the plurality of second protrusions 21A to 21H may be inserted into or fitted into the second holes 52, 54 of the blades 151A to 151D, 152A to 152D.

[0124] The rotating body 110 may include a guide protrusion 22 connected to the second protrusion 21. The guide protrusion 22 may protrude from one surface of the rotating body 110 by a length shorter than the length by which the second protrusion 21 protrudes from one surface of the rotating body 110.

[0125] The guide protrusion 22 can be formed to protrude in the circumferential direction. The guide protrusion 22 may include first guide protrusions 22A, 22C, 22E, 22G that engage with the second hole 52 of the first blade portion 151, and second guide protrusions 22B, 22D, 22F, 22H that engage with the second hole 54 of the second blade portion 152. The first guide protrusions 22A, 22C, 22E, 22G and the second guide protrusions 22B, 22D, 22F, 22H may be alternately arranged in the circumferential direction.

[0126] The lengths of the first guide protrusions 22A, 22C, 22E, and 22G protruding from one surface of the rotating body 110 can be greater than the lengths of the second guide protrusions 22B, 22D, 22F, and 22H protruding from one surface of the rotating body 110. Since the first blade portion 151 is spaced further from the rotating body 110 than the second blade portion 152, the protruding lengths of the first guide protrusions 22A, 22C, 22E, and 22G in the first direction can be greater than the protruding lengths of the second guide protrusions 22B, 22D, 22F, and 22H in the first direction.

[0127] The outer surface of the rotating body 110 may include recessed portions 25: 25A to 25H formed by inward recessing. A single recessed portion 25 may include a first region 26A connected to a second surface 23 of the rotating body 110, a second region 26B as two sides connected to the first region 26A, and a third region 26C. Multiple recessed portions 25A to 25H may be formed circumferentially spaced apart from each other on the outer surface of the rotating body 110. The recessed portions 25 may be configured such that when the rotating body 110 rotates, a first protrusion 71 of the housing 140 reciprocates within the recessed portion 25. The recessed portion 25 may be a region for avoiding the first protrusion 71 of the housing 140 when the rotating body 110 rotates.

[0128] The housing 140 may be located below the rotating body 110 and may accommodate at least a portion of the rotating body 110. The rotating body 110 and the housing 140 may be formed using an injection mold by an injection molding method. The rotating body 110 and the housing 140 may be formed from an injection-moldable material, such as plastic or resin.

[0129] The housing 140 may include an internal space capable of accommodating at least a portion of the rotating body 110. The housing 140 may also accommodate at least a portion of the lens module 10 within it. The housing 140 may include an opening 144. The opening 144 may be a through-hole or a hollow portion penetrating the housing 140 along a first direction. For example, the housing 140 may be cylindrical in shape. The upper surface of the housing 140 may face the lower surface of the rotating body 110 in the first direction or overlap with the lower surface of the rotating body 110 in the first direction.

[0130] The housing 140 may include an upper plate 141 and side plates projecting upward from the upper plate 141. The side plates of the housing 140 may include a first side plate 142 that is formed as a curved surface when viewed from the outside and a second side plate 143 that is formed as a flat surface when viewed from the outside. The first side plate 142 and the second side plate 143 may be alternately arranged in the circumferential direction. The second side plate 143 of the housing 140 may face the connecting plate 304 of the cover member 300.

[0131] On one surface of the second side plate 143, protrusions 72: 72A to 72D and recesses 74: 74A to 74D may be alternately provided. The protrusions 72 may be formed in a shape corresponding to the seating groove 64 of the spacer 160. When the protrusions 72 are fitted into the seating groove 64, movement in the rotational direction is prevented, and the position can be fixed.

[0132] The housing 140 may include a hole 145 through which at least a portion of the circuit board 190 is pulled out between the upper plate 141 and the side plate. The hole 145 may be a hole through which a connection portion 91 of the circuit board 190 is pulled out to the outside. The hole 145 may be formed in a shape corresponding to the connection portion 91 of the circuit board 190.

[0133] First protrusions 71: 71A to 71H of housing 140 may protrude upward from upper plate 141 of housing 140. First protrusions 71 may be protrusions or portions protruding from upper plate 141 or upper portion of housing 140. First protrusions 71A to 71H may be spaced apart from each other. First protrusions 71 may be described as a "rotation shaft," "support portion," "protrusion," or "connecting shaft." For example, first protrusions 71 may have a cylindrical or rod-shaped shape.

[0134] The first protrusion 71 can be inserted into or fitted into the first holes 51, 53 of the blade portion 150. The first protrusion 71 can be connected with the first holes 51, 53 of the blade portion 150. To facilitate rotation, lubricant or grease can be provided in the first protrusion 71 and the first holes 51, 53 of the blade portion 150.

[0135] The first protrusion 71 may include a plurality of first protrusions 71A to 71H corresponding to a plurality of blades 151A to 151D, 152A to 152D. The number of first protrusions 71 may be equal to the number of blades. Each of the first protrusions 71A to 71H may be inserted into or fitted into any of the corresponding first holes 51A to 51D, 53A to 53D of the blades 151A to 151D, 152A to 152D.

[0136] The housing 140 may include stepped portions 75: 75A to 75D protruding from the upper plate 141. The stepped portions 75 may be formed between two spaced-apart first protrusions. The stepped portions 75 may have a shape corresponding to the shape of the clearance portion 92 of the circuit board 190. When the rotating body 110 is disposed within the housing 140, the stepped portions 75 prevent the formation of a stepped portion between the substrate 190 facing the rotating body 110 and the housing 140.

[0137] The housing 140 may include a second reinforcing member 175 disposed on the lower surface of the upper plate 141. The second reinforcing member 175 can prevent the housing 140 from being damaged, deformed, or broken due to impact or external force. For example, the second reinforcing member 175 may include at least one of a magnetic body, a metallic material, or an injection molding material (e.g., plastic or resin). The second reinforcing member 175 can be integrally bonded to the housing 140 by an insert injection molding method. The second reinforcing member 175 can also perform a yoke function to enhance the electromagnetic force between the coil 180 and the magnet 130. The second reinforcing member 175 can be configured to prevent the magnetic force of the magnet 130 from escaping and to maintain a retaining force.

[0138] The aperture device 100 may include a circuit board 190 electrically connected to the coil 180. The circuit board 190 may be disposed within a housing 140. The circuit board 190 may be disposed on the upper plate 141 of the housing 140. The circuit board 190 may be disposed within the internal space formed by the upper plate 141 and the side plates of the housing 140. The circuit board 190 may be coupled to or fixed to the housing 140. The circuit board 190 may be bonded to the housing 140 using an adhesive.

[0139] The aperture device 100 may include a third reinforcing member 173 disposed on at least a portion of the circuit board 190. The third reinforcing member 173 may prevent the circuit board 190 from being damaged, deformed, or broken due to impact or external force. For example, the third reinforcing member 173 may include at least one of a metallic material or an injection molding material (e.g., plastic or resin).

[0140] The third reinforcing member 173 can function as a heat dissipation member to dissipate heat generated from the circuit board 190 and components associated with the circuit board 190 (e.g., coil 180, position sensor 185, or capacitor). In this case, the third reinforcing member 173 can be referred to as a "heat dissipation member" or "heat sink". The third reinforcing member 173 can also function as a magnetic yoke to enhance the electromagnetic force between the coil 180 and the magnet 130.

[0141] The aperture device 100 may include a drive blade portion 150 or a drive portion for rotating or moving the rotating body 110. The drive portion of the aperture device 100 may include a coil 180 disposed, connected, or fixed to the housing 140 and a magnet 130 disposed, connected, or fixed to the rotating body 110. The rotating body 110 may rotate or tilt within a preset range through the interaction between the coil 180 and the magnet 130.

[0142] The aperture device 100 may include a magnet 130. The driving part may include the magnet 130. The magnet 130 may be disposed on a moving part. The magnet 130 may be annular in shape. The magnet 130 may be shaped to include an opening. The magnet 130 may have N poles 31A, 31C, 31E, 31G and S poles 31B, 31D, 31F, 31H alternately arranged along the circumferential direction. The magnet 130 may be coupled to the moving part. The magnet 130 may be fixed to the moving part. The magnet 130 may be attached to the moving part using an adhesive.

[0143] Magnet 130 is movable. Magnet 130 can move by interacting with coil 180. Magnet 130 can move integrally with the moving part. Magnet 130 can move together with the moving part. Magnet 130 can be disposed on the lower surface of the moving part.

[0144] Coils 180: 180A to 180D may be disposed on circuit board 190. Coils 180 may be formed on circuit board 190. Coils 180 may be formed as patterned coils on circuit board 190. Coils 180 may be integrally formed with circuit board 190. Coils 180 may include a plurality of coils 180A to 180D spaced apart from each other.

[0145] Each of the plurality of coils 180A to 180D may be formed in a ring shape. Coil 180 may be formed in a ring shape including a hole 81. Coil 180 may include a first region 82A, a second region 82B connected to the first region 82A, a third region 82C opposite to the first region 82A, and a fourth region 82D opposite to the second region 82B.

[0146] Each of the two opposing regions in coil 180 can be configured to face opposite poles of magnet 130. Each of the two opposing regions in coil 180 can overlap with opposite poles of magnet 130 along the optical axis. For example, the first region 82A can face the south pole 31F, and the third region 82C can face the north pole 31E. The first region 82A can overlap with the south pole 31F along the optical axis, and the third region 82C can overlap with the north pole 31E along the optical axis. In this case, the first region 82A and the third region 82C of coil 180 can be regions that generate a Lorentz force through electromagnetic interaction with magnet 130.

[0147] Each of the two opposing regions of coil 180 can be configured to face the two opposite poles of magnet 130. Each of the two opposing regions of coil 180 can overlap with the two opposite poles of magnet 130 in the optical axis direction. Each of the two opposing regions of coil 180 can also not face magnet 130. For example, the second region 82B and the fourth region 82D can face both the N pole 31E and the S pole 31F. The second region 82B and the fourth region 82D can also not face magnet 130. In this case, the second region 82B and the fourth region 82D of coil 180 can be regions that do not generate Lorentz force.

[0148] Coil 180 can be positioned corresponding to magnet 130. Coil 180 can face magnet 130. Coil 180 can overlap with magnet 130. Coil 180 can overlap with magnet 130 along the optical axis. Coil 180 can face both the N and S poles of magnet 130. Coil 180 can be configured to face the boundary surface between the N and S pole regions of magnet 130. The hole 81 of coil 180 can be configured to face the boundary surfaces of different poles of magnet 130.

[0149] Coil 180 can have electromagnetic interaction with magnet 130. When current is applied to coil 180, magnet 130 can move due to the interaction between the electromagnetic fields of coil 180 and magnet 130. Coil 180 can move magnet 130. Coil 180 can remain relatively fixed while magnet 130 moves.

[0150] As a modification example, coil 180 can be disposed in the movable part, and magnet 130 can be disposed in the fixed part. Coil 180 can move together with the movable part, and magnet 130 can be fixed.

[0151] The aperture device 100 may include a sensor 185. The driving section may include the sensor 185. The sensor 185 may be mounted on a circuit board 190. The sensor 185 may be electrically connected to the circuit board 190. The sensor 185 may include multiple terminals connected to the circuit board 190.

[0152] Sensor 185 can detect magnet 130. Sensor 185 can be a Hall sensor. Sensor 185 can detect the magnetic force of magnet 130. Sensor 185 can be positioned corresponding to magnet 130. Sensor 185 can be stacked on magnet 130 in the optical axis direction. Control of blade section 150 can be achieved through real-time feedback of the position of magnet 130 detected by sensor 185. In other words, blade section 150 can be controlled by means of real-time feedback from sensor 185.

[0153] When the rotating body 110 moves or rotates, the second protrusions (21A to 21H) of the rotating body 110 that are fitted into the second holes (52A to 52D, 54A to 54D) of the blades 151A to 151D, 152A to 152D can move. When the second protrusions (21A to 21H) of the rotating body 110 move, the blades 151A to 151D, 152A to 152D can be folded toward the optical axis, or conversely, the blades 151A to 151D, 152A to 152D can be unfolded outward.

[0154] Reference Figure 9 As the second protrusions 21A to 21H of the rotating body 110 move from one side (P) to the other side (Q) of the second holes 52, 54 of the blades 151A to 151D, 152A to 152D, the opening of the blade portion 150 can change from its minimum size to its maximum size. At this time, the blade portion 150 can pivot about the first protrusion 71 of the housing 140 when the first protrusion 71 of the housing 140 is inserted into the first holes 51, 53. As the second protrusions 21A to 21H of the rotating body 110 move from one side (P) to the other side (Q) of the second holes 52, 54 of the blades 151A to 151D, 152A to 152D, the blade portion 150 can rotate clockwise about the first protrusion 71 of the housing 140. The opening of the blade portion 150 can be referred to as a blade aperture.

[0155] For example, when the second protrusions 21A to 21H of the rotating body 110 are located on one side P of the second holes 52A to 52D and 54A to 54D of the blades 151A to 151D, 152A to 152D, respectively, the opening of the blade portion 150 can have the minimum size. When the second protrusions 21A to 21H of the rotating body 110 are located on the other side Q of the second holes 52A to 52D and 54A to 54D of the blades 151A to 151D, 152A to 152D, respectively, the opening of the blade portion 150 can have the maximum size.

[0156] According to the modified example, the second protrusions 21A to 21H of the rotating body 110 can be moved from a state P on one side closest to the second holes 52A to 52D, 54A to 54D of the blades 151A to 151D, 152A to 152D to a state Q closest to the other side.

[0157] As blades 151A to 151D and 152A to 152D rotate, the size of the opening in blade portion 150 can be changed gradually or continuously. For example, the opening in blade portion 150 can be adjusted or changed to have three or more different sizes. For example, the opening in blade portion 150 can be adjusted or changed to have ten or fewer different sizes. For example, the opening in blade portion 150 can be adjusted or changed to have three or more and seven or fewer different sizes.

[0158] For example, the step of changing the size of the opening may include an initial step, two or more intermediate steps, and a final step. For instance, the initial step may be the step where the opening of the blade portion 150 has the largest size, the final step may be the step where the opening of the blade portion 150 has the smallest size, and the two or more intermediate steps may be steps where the opening has different intermediate sizes. The intermediate sizes may be larger than the minimum size and smaller than the maximum size.

[0159] Figure 20 This is a view used to explain the combination of the aperture device and lens module according to this embodiment. Figure 21 This illustration shows a cross-sectional view of an aperture device and a lens module according to another embodiment of the present disclosure. Figure 22 It is used to explain the settings Figure 21 A view of the magnet in the aperture device. Figure 23 This is a cross-sectional view illustrating an aperture device and lens module according to yet another embodiment of the present disclosure. Figure 24 It is used to explain the settings Figure 23 A view of the magnet and coil in the aperture mechanism. Figure 25 It is used to explain the settings Figure 23 A view of the magnet in the aperture device. Figure 26 This is a view used to explain the arrangement of the magnet and coil of the aperture device according to this embodiment, and Figure 27 It is used for setting the diagram. Figure 23 A view of the coil in the aperture device.

[0160] Reference Figure 20An aperture device 100 may be disposed on a lens module 10. An aperture device 100 may be disposed on a lens module 10. An aperture device 100 may be connected to a lens module 10. An aperture device 100 may be fixed to a lens module 10. An aperture device 100 may move integrally with a lens module 10. An aperture device 100 may move together with a lens module 10. An aperture device 100 may move together with a lens module 10 along the optical axis. A lens module 10 may include a lens barrel and at least one lens disposed within the lens barrel.

[0161] Omitted Figures 1 to 20 The description of the aperture device according to embodiments of the present disclosure overlaps. Figures 21 to 27 Any description of an aperture device according to another embodiment of the present disclosure and any configuration included in an aperture device according to yet another embodiment of the present disclosure. Figures 21 to 27 The components in the aperture device according to another embodiment of the present disclosure and the aperture device according to yet another embodiment of the present disclosure perform the same functions as those included in the aperture device. Figures 1 to 20 The components in the aperture device according to the embodiments of this disclosure have the same function, but there may be some differences in their arrangement and shape.

[0162] Figure 21 According to another embodiment of this disclosure, the aperture device can be disposed on the upper end of the lens module 10. For example... Figure 21 An aperture device configured as described above can be referred to as an additional aperture device. All components included in the aperture device can be located outside the lens module 10.

[0163] Coil 180 can be disposed outside housing 140. Magnet 130 can be disposed between housing 140 and rotating body 110. The connection between magnet 130 and rotating body 110 can vary in various ways, such as ball joint, boss-pin, point contact, and surface contact. Magnet 130 and coil 180 can be arranged to overlap in a direction perpendicular to the optical axis. Blade portion 150 can be connected to each protrusion of rotating body 110 and housing 140. Magnetic yoke 350 disposed below housing 140 can be arranged to face rotating body 110 and magnet 130. Magnetic yoke 350 can maintain holding force by preventing the magnetic force of magnet 130 from escaping outward.

[0164] The aperture device may include a ring-shaped magnet 130. If the magnet 130 is formed in a ring shape, interference between the AF drive and OIS drive, which is problematic in existing structures, can be reduced. Furthermore, the influence of the magnet 130 can uniformly affect the rotational drive of the rotating body 110, thereby improving tilting caused by uneven wear. Figure 22 As illustrated in (a), magnet 130 can be magnetized to have eight poles. Figure 22As shown in (b), magnet 130 can be magnetized to have 6 poles.

[0165] The thickness P of magnet 130 in the optical axis direction can be approximately 0.3 mm to approximately 1.5 mm. The thickness of magnet 130 in the direction perpendicular to the optical axis can also be approximately 0.3 mm to approximately 1.5 mm. When the thickness P of magnet 130 in the optical axis direction is approximately 1.5 mm, the thickness Q of magnet 130 in the direction perpendicular to the optical axis can be approximately 0.3 mm. If the thickness P of magnet 130 in the optical axis direction and the thickness Q in the direction perpendicular to the optical axis direction are greater than the upper limit, there is a problem that the aperture device becomes larger; and if the thickness P of magnet 130 in the optical axis direction and the thickness Q in the direction perpendicular to the optical axis direction are less than the lower limit, there is a problem that the magnet may break.

[0166] Included Figure 23 In another embodiment of the aperture device according to this disclosure, some components may be disposed inside the lens module 10, and the remaining components may be disposed outside the lens module 10. For example... Figure 23 The aperture device arranged as shown in the figure can be referred to as a built-in aperture device. The built-in aperture device can improve the sensitivity of the lens module 10 by placing the magnet 130 inside the lens module 10 and placing the coil 180 outside the lens module 10.

[0167] The coil 180 can be disposed outside the lens module 10. The coil 180 can also be disposed on the shoulder surface of the lens module 10. The magnet 130, the rotating body 110, the housing 140, and the blade portion 150 can be disposed inside the lens module 10. The magnet 130 can be disposed between the rotating body 110 and the lens module 10. The housing 140 can be disposed between the rotating body 110 and the lens module 10. The magnet 130 and the coil 180 can overlap in the optical axis direction.

[0168] The aperture device may include a ring-shaped magnet 130. The magnet 130 may be formed in a plate shape. When the magnet 130 is formed in a ring shape, interference between the AF drive and OIS drive, which is problematic in existing structures, can be reduced. Furthermore, the influence of the magnet 130 can uniformly affect the rotational drive of the rotating body 110, thereby improving tilting caused by uneven wear. Figure 25 As illustrated in (a), magnet 130 can be magnetized to have eight poles. Figure 25 As shown in (b), magnet 130 can be magnetized to have 6 poles.

[0169] The thickness R of magnet 130 in the optical axis direction can be approximately 0.3 mm to approximately 1.5 mm. The thickness of magnet 130 in the direction perpendicular to the optical axis can also be approximately 0.3 mm to approximately 1.5 mm. When the thickness R of magnet 130 in the optical axis direction is approximately 1.5 mm, the thickness S of magnet 130 in the direction perpendicular to the optical axis can be approximately 0.3 mm. If the thickness R of magnet 130 in the optical axis direction and the thickness S in the direction perpendicular to the optical axis are greater than the upper limit, there is a problem that the aperture device becomes larger, and if the thickness is less than the lower limit, there is a problem that the magnet may break.

[0170] Reference Figure 26 The coil 180 can be formed in a ring shape. The coil 180 may include a hole. The hole of the coil 180 can be configured to face the boundary surfaces of different poles of the magnet 130. If the magnet 130 has 2N alternating polarities, then N coils 180 can be provided. The coil 180 may include a circumferential region and a radial region. The circumferential region of the coil 180 may not face the magnet 130. The radial region of the coil 180 may face the magnet 130. The region where the coil 180 interacts electromagnetically with the magnet 130 can be the radial region. If the circumferential region of the coil 180 faces the magnet 130, the driving force may be weakened.

[0171] Reference Figure 27 The number of turns in coil 180 can be from 7 to 10 turns. If the value is below the lower limit of the above range, the problem is that proper driving force cannot be generated in the ultra-thin aperture device. If the value exceeds the upper limit of the above range, the problem is that power consumption increases as the resistance increases due to the increase in the number of turns in the coil. The thickness T of one region of coil 180 can be from about 0.4 mm to about 0.5 mm. This is only illustrative, and the thickness of the radial and circumferential regions of coil 180 can be different.

[0172] In the following description, the configuration of an aperture device according to another embodiment of the present disclosure will be described with reference to the accompanying drawings.

[0173] Figure 28 The diagram shows an exploded perspective view of the aperture device according to this embodiment. Figure 29 This is a perspective view of the cover of the aperture device according to this embodiment. Figure 30 This is a perspective view of the housing of the aperture device according to this embodiment. Figure 31 This is a perspective view illustrating the rotating body and magnet of the aperture device according to this embodiment, and Figure 32 This is a perspective view of the blade portion of the aperture device according to this embodiment.

[0174] The aperture device 200 can be an aperture. The aperture device 200 can control the amount of light passing through the lens. The aperture device 200 can control the amount of light incident on the image sensor 60. The aperture device 200 can control the size of the aperture through which light passes.

[0175] The aperture device 200 can be mounted on the lens. The aperture device 200 can be mounted on the lens. The aperture device 200 can be combined with the lens. The aperture device 200 can be fixed to the lens. The aperture device 200 can move integrally with the lens. The aperture device 200 can move together with the lens. The aperture device 200 can move together with the lens along the optical axis.

[0176] The aperture device 200 may include a fixed portion. The fixed portion may be a stator. The fixed portion may be a portion fixed relative to the moving portion. The fixed portion may movably support the moving portion.

[0177] The aperture device 200 may include a cover 290. A fixed portion may include the cover 290. The cover 290 may be disposed within the housing 240. The cover 290 may be disposed on the housing 240. The cover 290 may accommodate a movable portion internally. As a modified example, the cover 290 may include a top plate and side plates extending from the top plate.

[0178] The cover 290 may have a disc-shaped form including an opening 295. The cover 290 may include protrusions 293A to 293D for engagement with the housing 240. The protrusions 293A to 293D may protrude from the outer surface of the cover 290. The protrusions 293A to 293D of the cover 290 may fit into engagement recesses 241A to 241D of the housing 240.

[0179] The cover 290 may include first holes 292A to 292D, into which first protrusions 243A to 243D of the fixing portion are connected. The cover 290 may include first holes 292A to 292D, into which first protrusions 243A to 243D of the housing 240 are connected. The cover 290 may include second holes 291A to 291D, into which second protrusions 211A to 211D of the moving portion are connected. The first holes 292A to 292D of the cover 290 may be circular. The second holes 291A to 291D of the cover 290 may be elliptical. The dimensions of the first holes 292A to 292D of the cover 290 may be smaller than the dimensions of the second holes 291A to 291D.

[0180] The cover 290 of the aperture device 200 can be integrally formed with the substrate. The cover 290 can be referred to as the substrate. A coil 280 can be disposed on the substrate. The coil 280 can be formed on the substrate. For example, the coil 280 can be formed as a patterned coil 280 on the substrate.

[0181] The cover 290 of the aperture device 200 can be integrally formed with the substrate and the coil 280 to reduce the thickness of the aperture device 200 in the optical axis direction. In addition, by integrally forming the cover 290, the substrate and the coil 280, the thickness of the cover 290 can be appropriately set to a guaranteed edge thickness, thereby ensuring reliability compared to a thinly formed substrate.

[0182] According to the modified example, the cover 290, the substrate, and the coil 280 can be disposed in different locations. For example, the cover 290 and the substrate can be disposed inside the lens barrel, and the coil 280 can be disposed outside the lens barrel.

[0183] The substrate of the aperture device 200 can be electrically connected to the substrate of the lens driving device 300. Thus, the substrate of the aperture device 200 can receive power from the printed circuit board 50 of the camera device 10A. Although not shown in the figures, the substrate of the aperture device 200 and the substrate 270 of the lens driving device 300 can be directly connected. Alternatively, separate conductive members can be provided to connect the substrate of the aperture device 200 and the substrate of the lens driving device 300. As a modified example, the substrate of the aperture device 200 can be directly connected to the printed circuit board 50 without being connected to the substrate 270 of the lens driving device 300.

[0184] The aperture device 200 may include a housing 240. A fixed portion may include the housing 240. The housing 240 may be coupled to a cover 290. The housing 240 may accommodate a movable portion. The housing 240 may movably support the movable portion.

[0185] The housing 240 may include an opening 246. The opening 246 of the housing 240 may overlap with the opening 295 of the cover 290 in the optical axis direction. The housing 240 may include a top plate and side plates extending from the top plate in one direction. The housing 240 may accommodate the blade portion 250 and the cover 290 within the internal space formed by the top plate and the side plates. The side plates of the housing 240 may include recessed connecting grooves 241A to 241D. The connecting grooves 241A to 241D of the housing 240 may mate with the protrusions 293A to 293D of the cover 290.

[0186] The housing 240 may include first protrusions 243A to 243D. The housing 240 may include first protrusions 243A to 243D projecting from the upper plate. The first protrusions 243A to 243D may engage with the blade portion 250. The first protrusions 243A to 243D may engage with third holes 253A to 253D in the blade portion 250. The first protrusions 243A to 243D may engage with the cover 290. The first protrusions 243A to 243D may engage with first holes 292A to 292D in the cover 290.

[0187] The housing 240 may include guide holes 242A to 242D. The guide holes 242A to 242D of the housing 240 may connect with the second protrusions 211A to 211D of the rotating body 210. When the rotating body 210 is connected to the lower surface of the upper plate of the housing 240, the second protrusions 211A to 211D of the rotating body 210 may be exposed on the upper surface of the upper plate of the housing 240 through the guide holes 242A to 242D.

[0188] Guide holes 242A to 242D may extend along the path of movement of the second protrusions 211A to 211D of the rotating body 210. The second protrusions 211A to 211D may be curved along their path of movement, and guide holes 242A to 242D may include a twisted shape or a curved shape. The extension length of guide holes 242A to 242D in the direction of movement of the second protrusions 211A to 211D may be greater than the diameter of the second protrusions 211A to 211D.

[0189] The housing 240 may include protrusions 245A to 245F. The housing 240 may include protrusions 245A to 245F projecting from a top plate. The length of the protrusions 245A to 245F projecting from the top plate of the housing 240 may be less than the length of the first protrusions 243A to 243D projecting from the top plate of the housing 240. The protrusions 245A to 245F may support the blade portion 250 disposed in the housing 240 to prevent tilting of the blade portion 250. As a modified example, the protrusions 245A to 245F may be used to guide the movement of the blade portion 250.

[0190] The aperture device 200 may include a moving part. The moving part may be a rotor. The moving part may be a moving component. The moving part may be a moving device. The moving part may be a mover. The moving part may be a carrier. The moving part may be a rotating body.

[0191] The movable part can be mounted on the fixed part. The movable part can be mounted on the fixed part. The movable part can be movably mounted within the fixed part. The movable part can be rotatably mounted within the fixed part. The movable part can be mounted on the housing 240. The movable part can be mounted within the housing 240. The movable part can be movably mounted within the housing 240. The movable part can be mounted inside the housing 240. The movable part can be mounted inside the cover 290. The movable part can rotate within the housing 240. The movable part can rotate within the cover 290. The movable part can move the blade part 250. The movable part can move together with the blade part 250.

[0192] The aperture device 200 may include a rotating body 210. A movable part may include the rotating body 210. The rotating body 210 may be disposed within a housing 240. The rotating body 210 may be connected to the underside of the housing 240. The rotating body 210 may be integrally formed with the magnet 230. The rotating body 210 may include a first region 212 disposed facing the inner peripheral surface of the magnet 230 and a second region 213 disposed facing the outer peripheral surface of the magnet 230. The first region 212 and the second region 213 of the rotating body 210 may support the magnet 230.

[0193] The rotating body 210 may include second protrusions 211A to 211D. These second protrusions 211A to 211D may protrude upwards through the magnet 230. The second protrusions 211A to 211D may protrude upwards from the body portion of the rotating body 210. The second protrusions 211A to 211D may be formed on the upper surface of the body portion of the rotating body 210. The second protrusions 211A to 211D may be connected to the blade portion 250. Thus, when the rotating body 210 moves, the blade portion 250 may also move together.

[0194] The aperture device 200 may include a driving section. The driving section can move the moving part. The driving section can move the blade part 250. The driving section can move the moving part through electromagnetic interaction. The driving section may include a magnet 230 and a coil 280.

[0195] The aperture device 200 may include a magnet 230. The driving part may include the magnet 230. The magnet 230 may be disposed in the moving part. The magnet 230 may be disposed in the rotating body 210. The magnet 230 may be connected to the rotating body 210. The magnet 230 may be fixed to the rotating body 210. The magnet 230 may be bonded to the rotating body 210 using an adhesive.

[0196] Magnet 230 is movable. Magnet 230 can move through interaction with coil 280. Magnet 230 can move integrally with the moving part. Magnet 230 can move together with the moving part. Magnet 230 can be ring-shaped. Magnet 230 can be provided with alternating N and S poles. Magnet 230 can be magnetized to have 6 poles. Magnet 230 can be magnetized to have 8 poles. By reducing the thickness of magnet 230 in the optical axis direction to form an ultra-thin form, the thickness of aperture device 200 in the optical axis direction can be reduced. Furthermore, the driving force can be increased by forming a wide region facing coil 280 in magnet 230.

[0197] A magnetic yoke may be provided on one surface of the magnet 230 or on one surface of the rotating body 210. The magnetic yoke may be positioned corresponding to the magnet 230. The magnetic yoke may overlap with the magnet 230 in the optical axis direction. An attractive force may act between the magnetic yoke and the magnet 230. The magnetic yoke may be configured to prevent the magnetic force of the magnet 230 from escaping and to maintain a holding force. This increases the driving force caused by the electromagnetic interaction between the magnet 230 and the coil 280.

[0198] The aperture device 200 may include a coil 280. The coil 280 may include a plurality of coils 280: 280A to 280D spaced apart from each other. A driving section may include the coil 280. The coil 280 may be disposed in a fixed section. The coil 280 may be disposed on a substrate. The coil 280 may be coupled to the substrate. The coil 280 may be soldered to the substrate. The coil 280 may be electrically connected to the substrate. The coil 280 may be integrally formed with the substrate. The coil 280 may be formed as a patterned coil 280 on the substrate. The coil 280 may be disposed in a housing 240. The coil 280 may be disposed on the housing 240. The coil 280 may be disposed inside a cover 290.

[0199] Coil 280 can be positioned corresponding to magnet 230. Coil 280 can overlap with magnet 230. Coil 280 can overlap with magnet 230 along the optical axis. Coil 280 can face magnet 230. Coil 280 can be opposite magnet 230. Coil 280 can interact with magnet 230. Coil 280 can have electromagnetic interaction with magnet 230. Coil 280 can overlap with the boundary surface between the N and S poles of magnet 230 along the optical axis. Coil 280 can be formed into an annular shape including holes 281A to 281D. The holes in coil 280 can overlap with the boundary surface between the N and S poles of magnet 230 along the optical axis.

[0200] When current is applied to coil 280, magnet 230 can move due to the interaction between the electromagnetic fields of coil 280 and magnet 230. Coil 280 can move magnet 230. Coil 280 can also remain relatively fixed while magnet 230 moves.

[0201] As a modification example, coil 280 can be disposed in the movable part, and magnet 230 can be disposed in the fixed part. Coil 280 can move together with the movable part, and magnet 230 can be fixed.

[0202] The aperture device 200 may include a sensor. The driving section may also include a sensor. The sensor may be mounted on a substrate. The sensor may be electrically connected to the substrate. The sensor may detect a magnet 230. The sensor may be a Hall sensor. The sensor may detect the magnetic force of the magnet 230. The sensor may be positioned corresponding to the magnet 230. The sensor may overlap with the magnet 230 in the optical axis direction. Control of the blade section 250 can be achieved through real-time feedback of the position of the magnet 230 detected by the sensor. In other words, the blade section 250 can be controlled by means of real-time feedback from the sensor.

[0203] The aperture device 200 may include a blade portion 250. The blade portion 250 may be a light-blocking member. The blade portion 250 may be mounted on a fixed portion. The blade portion 250 may be mounted on a housing 240. The blade portion 250 may be located inside a cover 290. The blade portion 250 may be mounted on a movable portion. The blade portion 250 may move together with the movable portion. In other words, when the movable portion moves, the blade portion 250 may also move together.

[0204] The blade portion 250 may include a first portion connected to a fixed portion and a second portion connected to a movable portion. Thus, when the movable portion moves, the blade portion 250 can pivot relative to the fixed portion. The blade portion 250 may include third holes 253A to 253D, into which the first protrusions 243A to 243D of the fixed portion are inserted. The blade portion 250 may include fourth holes 252A to 252D, into which the second protrusions 211A to 211D of the movable portion are inserted. The third holes 253A to 253D may be circular. The fourth holes 252A to 252D may be elliptical. The size of the third holes 253A to 253D may be smaller than the size of the fourth holes 252A to 252D.

[0205] The blade portion 250 can rotate and move linearly at its contact with the fixed portion. The blade portion 250 can move linearly at its contact with the moving portion.

[0206] The aperture device 200 may include a blade aperture. A blade portion 250 may include a blade aperture formed by a plurality of blade portions 250. The size or shape of the blade aperture can be varied by the plurality of blade portions 250. Light can pass through the blade aperture.

[0207] As the second protrusions 211A to 211D of the rotating body 210 move from one side P to the other side Q of the fourth holes 252A to 252D of the blade portion 250, the blade aperture of the blade portion 250 can change from its minimum size to its maximum size. As the second protrusions 211A to 211D of the rotating body 210 move from one side P to the other side Q of the fourth holes 252A to 252D of the blade portion 250, the blade portion 250 can rotate counterclockwise around the first protrusions 243A to 243D of the housing 240. The blade aperture of the blade portion 250 can be referred to as the opening of the blade portion 250.

[0208] For example, when the second protrusions 211A to 211D of the rotating body 210 are located on one side P of the fourth holes 252A to 252D of the blade portion 250, the size of the blade hole can be the minimum size. When the second protrusions 211A to 211D of the rotating body 210 are located on the other side Q of the fourth holes 252A to 252D of the blade portion 250, the size of the blade hole can be the maximum size.

[0209] According to the modified example, the second protrusions 211A to 211D of the rotating body 210 can be moved from a state on one side P that is closest to the fourth hole 252A to 252D of the blade portion 250 to a state that is closest to the other side Q.

[0210] The blade portion 250 may include a plurality of blades 251A to 251D. The blade portion 250 may include 4 to 12 blades. The blade portion 250 may include 4 blades. The blade portion 250 may include 6 blades. In this case, the 6 blade portions 250 may be configured as two layers, each having 3 blades. The plurality of blades 251A to 251D may form blade apertures whose dimensions change according to the movement of the moving portion. The blade apertures may be formed from the inner peripheral surfaces of the plurality of blades 251A to 251D.

[0211] In the following description, the configuration of the camera device according to this embodiment will be described with reference to the accompanying drawings.

[0212] Figure 33 This is a perspective view of a camera device according to this embodiment.

[0213] The camera device 10 may include a lens module. The lens module may include at least one lens. The lens may be positioned corresponding to the image sensor 60. The lens module may include a lens and a lens barrel. The lens module may be coupled to a retainer of the lens drive device 20. The lens module may be coupled to the retainer by screws and / or adhesive. The lens module may be movable integrally with the retainer.

[0214] Camera device 10 may include a filter 30. The filter 30 can be used to block light of a specific frequency band from passing through the lens module and entering the image sensor 60. The filter 30 may be configured to be parallel to the xy plane. The filter 30 may be disposed between the lens module and the image sensor 60. The filter 30 may be disposed on the sensor base 40. As a modified example, the filter 30 may be disposed on the base of the lens driving device 20. The filter 30 may include an infrared filter. The infrared filter can block light in the infrared region from incident on the image sensor 60.

[0215] The camera device 10 may include a sensor base 40. The sensor base 40 may be disposed between the lens drive device 20 and the printed circuit board 50. The sensor base 40 may include a protrusion 41, on which a filter 30 is disposed. An opening may be formed in the portion of the sensor base 40 where the filter 30 is disposed, allowing light passing through the filter 30 to enter the image sensor 60.

[0216] Camera device 10 may include a printed circuit board (PCB) 50. The PCB 50 may be a substrate or a circuit board. A lens driving device 20 may be disposed on the PCB 50. A sensor base 40 may be disposed between the PCB 50 and the lens driving device 20. The PCB 50 may be electrically connected to the lens driving device 20. An image sensor 60 may be disposed on the PCB 50. The PCB 50 may be equipped with various circuits, components, control parts, etc., to convert the image formed on the image sensor 60 into electrical signals and transmit the electrical signals to external devices.

[0217] Camera device 10 may include image sensor 60. Image sensor 60 may be configured to form an image using incident light passing through lens and filter 30. Image sensor 60 may be mounted on printed circuit board 50. Image sensor 60 may be electrically connected to printed circuit board 50. For example, image sensor 60 may be connected to printed circuit board 50 using surface mount technology (SMT). As another example, image sensor 60 may be connected to printed circuit board 50 using flip chip technology.

[0218] Image sensor 60 can be configured such that its optical axis is aligned with the optical lens of the lens. In other words, the optical axis of image sensor 60 and the optical axis of the lens can be aligned. Image sensor 60 can convert light incident on its effective image area into an electrical signal. Image sensor 60 can be any of charge-coupled device (CCD), metal-oxide-semiconductor (MOS), CPD, and CID.

[0219] The camera device 10 may include a motion sensor 70. The motion sensor 70 may be mounted on a printed circuit board 50. The motion sensor 70 may be electrically connected to a control section 80 via circuit patterns provided on the printed circuit board 50. The motion sensor 70 may output rotational angular velocity information generated by the movement of the camera device 10. The motion sensor 70 may include a dual-axis or tri-axis gyroscope sensor or an angular velocity sensor.

[0220] The camera device 10 may include a control section 80. The control section 80 may be disposed on a printed circuit board 50. The control section 80 may be electrically connected to the coil of the lens drive device 20. The control section 80 may independently control the direction, intensity, amplitude, etc., of the current supplied to the coil. The control section 80 may control the lens drive device 20 to perform autofocus and / or image stabilization functions. Furthermore, the control section 80 may perform autofocus feedback control and / or image stabilization feedback control on the lens drive device 20.

[0221] The camera device 10 may include a connector 90. The connector 90 may be electrically connected to the printed circuit board 50. The connector 90 may include a port for electrical connection to an external device.

[0222] The configuration of the optical device according to this embodiment will now be described with reference to the accompanying drawings.

[0223] Figure 34 This is a perspective view of the optical device according to this embodiment.

[0224] Optical device 1 may include one or more of a mobile phone, cellular phone, portable terminal, mobile terminal, smartphone, smart tablet, portable smart device, digital camera, laptop computer, digital broadcasting terminal, personal digital assistant (PDA), portable multimedia player (PMP), and navigation system. Optical device 1 may include any device for capturing images or photographs.

[0225] Optical device 1 may include a main body 2. Optical device 1 may include a camera device 10. Camera device 10 may be mounted on the main body 2. Camera device 10 can capture an object. Optical device 1 may include a display. The display may be mounted on the main body 2. The display can output one or more of the video or images captured by camera device 10. The display may be mounted on a first surface of the main body 2. Camera device 10 may be mounted on one or more of the first surface and a second surface opposite to the first surface of the main body 2. Camera device 10 may have three cameras arranged vertically. Alternatively, camera device 10 may have three cameras arranged horizontally.

[0226] Those skilled in the art related to this embodiment will understand that this embodiment can be implemented in modified forms without departing from the basic features of the above disclosure. Therefore, the disclosed method should be considered illustrative rather than restrictive. The scope of this disclosure is set forth in the claims, not in the foregoing description, and all differences within its equivalent scope should be interpreted as included in this disclosure.

Claims

1. An aperture device, comprising: Fixed part; A movable part, wherein the movable part is disposed on the fixed part; A magnet and a coil, the magnet and the coil being configured to move the movable portion; as well as The blade portion has holes formed in it, the size of which changes according to the movement of the moving portion. The magnet is formed in a ring shape with alternating N and S poles. The coil is formed into an annular shape including a hole, and The hole in the coil is configured to face the boundary surfaces of different poles of the magnet.

2. The aperture device according to claim 1, in, The coil includes a circumferential region and a radial region. Wherein, the circumferential region of the coil does not face the magnet, and The radial region of the coil faces the magnet.

3. The aperture device according to claim 1, in, The fixing portion includes a first protrusion that connects to the first hole of the blade portion. The movable portion includes a second protrusion connected to the second hole of the blade portion, and The size of the first hole is smaller than the size of the second hole.

4. The aperture device according to claim 1, in, The moving part includes a rotating body. The magnet is disposed on one surface of the rotating body, and A first reinforcing member is provided on another surface of the rotating body.

5. The aperture device according to claim 1, in, The fixing part includes a housing and a base plate disposed on the housing, and The coil is formed as a patterned coil on the substrate.

6. The aperture device according to claim 5, in, A second reinforcing member is provided on one side of the housing, and A third reinforcing member is provided between the other surface of the housing and the substrate.

7. A camera device, comprising: Printed circuit boards; An image sensor, the image sensor being disposed on the printed circuit board; A lens, which is disposed on the image sensor; as well as The aperture device according to any one of claims 1 to 6, wherein the aperture device is disposed on the lens.

8. An optical device, comprising: main body; The camera device according to claim 7, wherein the camera device is disposed on the main body; as well as A display, disposed on the main body, outputs one or more of the video and images captured by the camera device.

9. A camera module, comprising: The lens module includes a lens barrel and a lens portion; The fixing part is disposed inside the lens barrel; A movable part, wherein the movable part is disposed on the fixed part; A magnet, which is disposed on the movable part; A coil, the coil being disposed outside the lens barrel; as well as Multiple blades form holes, the size of which varies according to the movement of the moving part.

10. The camera module according to claim 9, in, The magnet is formed in a ring shape with alternating N and S poles. The coil is formed into an annular shape including a hole, and The hole in the coil is configured to overlap with the boundary surface of the different poles of the magnet in the optical axis direction.

Images