Lens driving device, camera module, and optical device

Abstract

To provide a ball-type lens driving device capable of reducing current consumption compared to a spring-type lens driving device.SOLUTION: The present embodiment relates to a lens driving device comprising a fixed portion, a mover arranged to be movable relative to the fixed portion and provided with a housing and a holder, and a driving unit for moving the mover. The driving unit includes a first driving unit for moving the holder and a second driving unit for moving the housing, where at least a part of the first driving unit and at least a part of the second driving unit are disposed on a first side of the fixed portion.SELECTED DRAWING: Figure 6

Description

[Technical Field]

[0001] The present embodiment relates to a lens driving device, a camera module, and an optical device. [Background technology]

[0002] As various mobile devices become more widely available, wireless internet services become commonplace. As a result, consumer demands for mobile devices are becoming more diverse, and various types of additional devices are being introduced into mobile devices. It is attached to the mobile terminal.

[0003] A typical example is a camera module that takes photos and videos of a subject. On the other hand, recent camera modules have an automatic focus adjustment function that adjusts the focus according to the distance of the subject. It also has a camera shake correction function that corrects camera shake. It is applied.

[0004] In the case of a spring-type module, the elastic force of the spring acts to move the lever to the desired position. To move the lens, a current must be continuously applied, which reduces the current consumption. There is a problem of increasing

[0005] In addition, with the increasing trend towards the adoption of high-resolution image sensors, the weight and size of lenses are also increasing. As a result, the weight of the drive unit has increased in comparison with the conventional spring or suspension wire method. The increase in thickness is a risk factor in terms of performance and reliability. Summary of the Invention [Problem to be solved by the invention]

[0006] This embodiment provides a ball-type lens driving device that can reduce current consumption compared to a spring-type lens driving device. I try to provide.

[0007] Another object of the present invention is to provide a lens driving device that can employ a lens with a large diameter. [Means for solving the problem]

[0008] The lens driving device according to the present embodiment comprises a fixed portion; and a lens arranged to move relative to the fixed portion. a mover including a housing and a holder; and a drive for moving the mover. a drive unit; and a drive unit including a first drive unit that moves the holder and a housing. a second drive unit that moves at least a portion of the first drive unit and at least a portion of the second drive unit; At least a portion of the fixing portion can be disposed on a first side surface of the fixing portion.

[0009] The first driving unit includes a first coil and a first magnet, and the second driving unit includes a second coil and a The coil and the second magnet may be included.

[0010] The first coil and the second coil may be disposed on the first side surface of the fixed portion. do.

[0011] The first magnet and the second magnet are disposed on the first side surface of the fixed portion. This can be done.

[0012] The fixing portion includes a base and a substrate disposed on the base, and the base includes first to second substrates. a fourth side surface of the base, the substrate including a first portion disposed on the first side surface of the base; This can be done.

[0013] The first coil is moved in a direction perpendicular to the optical axis direction by the holder, and the second coil is moved in a direction perpendicular to the optical axis direction by the holder. The lever can move the holder and the housing in the direction of the optical axis.

[0014] The second side of the base is disposed opposite the first side of the base, The substrate includes a second portion disposed on the second side of the base, the first coil and the Each of the second coils can include a coil disposed on the second portion of the substrate.

[0015] The third side of the base is disposed opposite the fourth side of the base, The substrate has a third portion disposed on the third side surface of the base and a fourth portion disposed on the fourth side surface of the base. and a fourth portion disposed on the substrate, the second coil being disposed between the third portion and the fourth portion of the substrate. may not be placed in the minutes.

[0016] The first coil includes a coil disposed in the third portion and the fourth portion of the substrate. It is possible.

[0017] The first magnet is four magnets arranged on four sides of the holder. the second magnet is disposed on two opposite sides of the housing; The magnets may include two magnets arranged at the respective positions.

[0018] the lens driving device includes a first ball that contacts the holder and the housing; The first ball may be disposed on an upper surface of the holder.

[0019] the lens driving device includes a first yoke disposed on an upper surface of the housing, The first yoke overlaps with the first magnet and the first ball in the optical axis direction. It is possible.

[0020] The first ball includes four balls, and a virtual plane connecting the centers of the four balls is formed. The facets may be perpendicular to the optical axis.

[0021] a second ball in contact with the housing and the base, the second ball being aligned with the optical axis; The ball may include two balls arranged symmetrically relative to each other.

[0022] a second yoke disposed on the substrate, the second yoke extending in a direction perpendicular to the optical axis direction; The second magnet may be overlapped.

[0023] The first magnet faces the first coil disposed on the first portion of the substrate. the second magnet is disposed on the first portion of the substrate; The coil may include a magnet.

[0024] The bases are formed to protrude from the third side surface of the base and spaced apart from each other in the optical axis direction. the third portion of the substrate includes two protrusions, and the third portion of the substrate includes a first region in which the first coil is disposed. a second region extending from the first region and disposed between the two protrusions of the base; In the optical axis direction, the length of the first region of the substrate is equal to the length of the second region of the substrate. Longer is better.

[0025] The lens driving device includes a Hall element that senses the second magnet, and a driver IC disposed in the first portion and electrically connected to the second coil; It is possible.

[0026] The lens driving device is disposed on the substrate and has a hole for sensing the first magnet. a Hall sensor, the Hall sensor detecting a position of the holder in a first direction perpendicular to the optical axis direction of the holder; a first hall sensor for detecting movement of the holder in the optical axis direction and the first direction; A second Hall sensor may be included to sense movement in a second vertical direction.

[0027] The substrate includes a plurality of terminals, and the plurality of terminals of the substrate are connected to the driver IC. Four terminals electrically connected to each other and a coil disposed on a virtual first plane in the first coil. and a virtual terminal in the first coil that is perpendicular to the first plane. two terminals electrically connected to a coil disposed on the second plane; and the first Hall sensor. four terminals electrically connected to the first Hall sensor and four terminals electrically connected to the second Hall sensor The device may include two terminals.

[0028] The lens driving device includes an upper plate and side plates extending from the upper plate, and a cover covering the base. The cover member may include a bar member, and the side plate of the cover member may be coupled to the base.

[0029] The camera module according to this embodiment includes a printed circuit board; an image sensor mounted on the printed circuit board; the lens driving device disposed on the printed circuit board; and a lens coupled to the holder of the lens driving device.

[0030] The optical device according to this embodiment includes a book; the camera module disposed on the main body; The camera module is arranged on the main body and captures both the image and the video. and one or more outputs;

[0031] The lens driving device according to this embodiment includes a base including first to fourth side surfaces; a housing that moves vertically relative to the housing; and a holder that moves horizontally relative to the housing. a first drive unit for moving the housing; and a second drive unit for moving the holder. a second drive portion for driving the first drive portion; and a part of the first drive portion is connected to the first side surface and the second side surface facing each other. the second driving unit is disposed on the third side surface, and a portion of the second driving unit is disposed on the first side surface. a first unit driving section and a second unit driving section, a part of which is disposed on the fourth side surface, The position driver and the second unit driver can move the holder in different directions. can.

[0032] Another part of the first unit driving part is disposed on the third side surface opposite to the first side surface. Another part of the second unit driving section is disposed on the second side surface opposite to the fourth side surface. It can be done.

[0033] The first unit driving parts disposed on the first side surface and the third side surface include first unit coils. It could be.

[0034] The first unit coil is at least two in number, and one of the two is disposed on the first side surface. and the other one can be disposed on the third side surface.

[0035] a first unit magnet disposed to correspond to the first unit coil; At least two unit magnets can be coupled to the holder.

[0036] The first driving portion disposed on the first side surface and the third side surface may be a first coil.

[0037] The first driving part includes a first magnet coupled to the housing in correspondence with the first coil. It can contain

[0038] The lens driving device according to this embodiment includes a base including first to fourth side surfaces; a housing that moves vertically relative to the housing; and a holder that moves horizontally relative to the housing. a drive unit for moving the holder; and a drive unit for moving the holder, the drive unit being configured to move the first side a first unit driving part including a first unit coil or a first unit magnet arranged on a surface; a second unit drive including a second unit coil or a second unit magnet disposed on the fourth side surface; the first unit driving unit and the second unit driving unit drive the holder in different directions. The base is moved in the direction of the first corner where the first side and the fourth side meet, and the front a fourth corner where the third side surface and the fourth side surface meet, The unit coils are each a plurality of unit coils, and one first unit coil and one second unit coil are included in the plurality of unit coils. The position coil is arranged so as to be closer to the first corner than to the fourth corner. can be done.

[0039] The base includes a third corner diagonally opposite the first corner, and the plurality of The other first unit coil and the other second unit coil are located closer to the fourth corner than the fourth corner. It may be disposed adjacent to the third corner.

[0040] The lens driving device according to the present embodiment comprises a fixed portion; and a lens arranged to move relative to the fixed portion. a mover including a housing and a holder; and a drive unit for moving the mover. and a guide portion disposed between the housing and the holder; The housing includes a first drive unit that moves the housing and a second drive unit that moves the holder. The guide portion includes first and second balls, a first hole in which the first ball is accommodated, and a retainer including a second hole in which the second ball is received, and the first ball is The first ball rotates in the first hole, and the second ball can rotate in the second hole. do.

[0041] The second driving unit drives the holder in a first direction by the first ball and the second ball. a first unit driving unit that drives the holder by the first ball and the second ball; in a second direction different from the first direction.

[0042] The first ball and the second ball are separated by the first hole and the second hole. It is possible.

[0043] The distance between the first ball and the second ball is equal to the distance between the first hole and the second hole. It may be greater than or equal to the spacing.

[0044] The lens driving device according to this embodiment includes a base; a housing disposed in the base; a holder disposed within the housing; and a device disposed between the holder and the housing. and a guide portion disposed in the hole; and the guide portion includes a retainer including a hole and a guide portion disposed in the hole. The guide portion includes a ball placed on the holder and the housing in the optical axis direction. They can be arranged so as to overlap.

[0045] The lens driving device according to this embodiment includes a base and a handwheel arranged to move along the optical axis. a housing; a holder arranged to move in a direction perpendicular to the optical axis; a guide portion disposed between the retainer and the housing, the guide portion being a retainer and a ball disposed in the retainer.

[0046] The retainer is coupled to the holder or the housing, and the ball is It can move or roll in the direction perpendicular to the optical axis direction.

[0047] The retainer can function as a yoke. a magnet disposed in the holder, and a retainer and a magnet are disposed between the retainer and the magnet; Gravitational forces can act.

[0048] The lens driving device according to this embodiment includes a base; a housing disposed in the base; a holder disposed within the housing; and a first magnet disposed in the holder. a second magnet disposed in the housing; a substrate disposed in the base; a first coil disposed on the substrate and facing the first magnet; a second coil disposed in the holder and facing the second magnet; a first ball fixed to the housing and in contact with the first magnet in the optical axis direction; and a first yoke overlapping the first ball; The hole may include a hole that is inserted.

[0049] The diameter of the hole of the first yoke corresponds to the diameter of the first ball or It can be formed larger than the diameter of the ball.

[0050] The first ball may be rotatably disposed in the hole of the first yoke. .

[0051] The first yoke has two side plates whose upper ends are fixed to the housing, and a connecting plate for connecting the plates, and the hole of the first yoke is formed in the connecting plate. This can be done.

[0052] The connecting plate of the first yoke is aligned with the center of the first ball in a direction perpendicular to the optical axis direction. Can be overlapped.

[0053] The holder has a first side and a second side arranged opposite to each other, and the first magnet includes a third side and a fourth side on which the first magnet is positioned, a first magnet disposed on the first side of the holder; and a first magnet disposed on the second side of the holder. 2 magnet, a 1-3 magnet disposed on the third side surface of the holder, and a first magnet disposed on the fourth side of the holder; a fourth magnet disposed on the fourth side of the holder; a first yoke overlapping the first magnet in the optical axis direction; a first-second yoke overlapping the first-second magnet in the optical axis direction; The first-third yoke overlaps the third magnet in the optical axis direction, and the first-fourth magnet The magnet may include first to fourth yokes overlapping with the magnet in the optical axis direction.

[0054] The holes of the first yoke are arranged in three equal intervals in each of the 1-1 to 1-4 yokes. They can be formed one by one.

[0055] The housing includes an upper plate and a side plate extending downward from the upper plate, and the first ball is It may be disposed between the upper plate of the housing and the upper surface of the holder.

[0056] The first yoke is fixed to the lower surface of the upper plate of the housing, and the first yoke is , and arranged closer to one of the two corner regions of the upper surface of the holder. It can be placed.

[0057] The holder has a protrusion protruding from a side surface of the holder and a The holder may include a groove, and the first magnet may be disposed in the groove of the holder.

[0058] The housing includes a groove formed on an inner surface of the side plate of the housing, At least a portion of the protrusion of the clamp may be disposed in the groove of the housing. do.

[0059] The side plate of the housing includes a first portion of the housing where the groove is formed, and a second portion of the housing where the groove is not formed, and the second magnet is The second portion of the ring may be disposed thereon.

[0060] The first yoke may be made of a magnetic material. The base includes first to fourth sides, and the substrate is disposed on the first side of the base. each of the first coil and the second coil includes a first portion disposed on the substrate; It may include a coil disposed in one section.

[0061] The first coil is moved in a direction perpendicular to the optical axis direction by the holder, and the second coil is moved in a direction perpendicular to the optical axis direction by the holder. The lever can move the holder and the housing in the direction of the optical axis.

[0062] The second side of the base is disposed opposite the first side of the base, The substrate includes a second portion disposed on the second side of the base, the first coil and the Each of the second coils can include a coil disposed on the second portion of the substrate.

[0063] The third side of the base is disposed opposite the fourth side of the base, The substrate has a third portion disposed on the third side surface of the base and a fourth portion disposed on the fourth side surface of the base. and a fourth portion disposed on the substrate, the second coil being disposed between the third portion and the fourth portion of the substrate. the first coil is disposed in the third and fourth portions of the substrate; The coil may include a

[0064] The camera module according to this embodiment includes a printed circuit board; an image sensor mounted on the printed circuit board; the lens driving device disposed on the printed circuit board; and a lens coupled to the holder of the lens driving device.

[0065] The optical device according to this embodiment includes a main body; the camera module disposed in the main body; The camera module is located on the main body and captures either the image or the video. and a display for outputting one or more of the above.

[0066] The lens driving device according to this embodiment includes a base; a housing disposed in the base; a holder disposed within the housing; and a first magnet disposed in the holder. a second magnet disposed in the housing; a substrate disposed in the base; a first coil disposed on the substrate and facing the first magnet; a second coil disposed in the holder and facing the second magnet; a first ball fixed to the housing and in contact with the first magnet in the optical axis direction; and a first yoke overlapped therewith; and the housing includes an upper plate and a second yoke extending from the upper plate. the first ball is connected to the top plate of the housing and the top surface of the holder. and the first yoke is fixed to the upper plate of the housing. can. [Effects of the Invention]

[0067] In this embodiment, the spring type is less worn out when driving the autofocus and image stabilization. This can reduce the current required.

[0068] Furthermore, large diameter lenses can be used without risking performance or reliability. Autofocus driving and image stabilization driving may be possible. [Brief explanation of the drawings]

[0069] [Figure 1] FIG. 1 is a perspective view of a lens driving device according to an embodiment of the present invention. [Figure 2] FIG. 2 is a cross-sectional view taken along line AA in FIG. [Figure 3] FIG. 2 is a cross-sectional view taken along the line BB in FIG. [Figure 4] FIG. 2 is a cross-sectional view taken along CC in FIG. [Figure 5] FIG. 2 is a cross-sectional view taken along the line DD in FIG. [Figure 6] FIG. 2 is an exploded perspective view of the lens driving device according to the embodiment. [Figure 7] FIG. 2 is a perspective view of a partial configuration of the lens driving device according to the embodiment. [Figure 8] FIG. 8 is an enlarged view of a partial area of ​​FIG. [Figure 9] FIG. 2 is a perspective view of a second mover of the lens driving device according to the present embodiment. [Figure 10]FIG. 10 is a perspective view illustrating a state in which a first ball is placed in FIG. 9. [Figure 11] FIG. 2 is a bottom view of the housing of the lens driving device according to the embodiment. [Figure 12] FIG. 2 is a perspective view of a housing of the lens driving device according to the embodiment. [Figure 13] FIG. 2 is a perspective view of a first mover of the lens driving device according to the present embodiment. [Figure 14] FIG. 2 is a perspective view of a first base of the lens driving device according to the present embodiment. [Figure 15] 1 is a perspective view illustrating an arrangement structure of a substrate and first and second coils of a lens driving device according to the present embodiment. [Figure 16] FIG. 16 is a perspective view of FIG. 15 seen from a different direction. [Figure 17] 3 is a perspective view illustrating a second ball and related configuration of the lens driving device according to the present embodiment. FIG. [Figure 18] 1 is a cross-sectional view of a partial configuration of a lens driving device according to an embodiment of the present invention. [Figure 19] 10 is a perspective view illustrating the lens driving device according to the embodiment in which a cover member is omitted. FIG. [Figure 20] 10 is a perspective view illustrating the lens driving device according to the embodiment in which a cover member is omitted. FIG. [Figure 21] FIG. 20 is a perspective view of FIG. 19 viewed from above. [Figure 22] 4 is a diagram for explaining AF and OIS driving of the lens driving device according to the embodiment. [Figure 23] FIG. 10 is an exploded perspective view of a lens driving device according to a modified example. [Figure 24] FIG. 10 is a perspective view of a partial configuration of a lens driving device according to a modified example. [Figure 25] FIG. 25 is an enlarged view of a portion of FIG. 24. [Figure 26] FIG. 10 is a perspective view of a partial configuration of a lens driving device according to a modified example. [Figure 27] FIG. 2 is an exploded perspective view of the camera module according to the embodiment. [Figure 28]FIG. 1 is a perspective view of an optical device according to an embodiment of the present invention. DETAILED DESCRIPTION OF THE INVENTION

[0070] DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS Hereinafter, preferred embodiments of the present invention will be described in detail with reference to the accompanying drawings.

[0071] However, the technical idea of ​​the present invention is not limited to the described embodiments, and may be different from each other. The present invention can be embodied in various forms, and the embodiments and the accompanying drawings are intended to be illustrative and not restrictive. One or more of the components may be selectively combined or substituted.

[0072] Furthermore, terms (including technical and scientific terms) used in the embodiments of the present invention are expressly and specifically Unless otherwise defined and described, it is understood by a person skilled in the art to which the present invention pertains. It can be interpreted as having a commonly understood meaning and is generally used like a predefined term. The terms used can be interpreted in light of the context of the relevant art. It should be.

[0073] Furthermore, the terms used in the embodiments of the present invention are intended to explain the embodiments, and are not to be construed as limiting the scope of the present invention. It is not intended to limit

[0074] In this specification, the singular can include the plural, unless the context clearly dictates otherwise, and includes terms such as "A and ( When it is written "and) at least one (or more) of B and C," it means that it is a combination of A, B, and C. It may include one or more of all possible combinations.

[0075] In addition, in describing the components of the embodiment of the present invention, first, second, A, B, (a), (b) and other terms may be used. Such terms distinguish the component from another component. The term is used for distinction purposes only and does not affect the nature, order, or sequence of the components. It is not limited to numbers.

[0076] It should be noted that when a component is described as being 'coupled', 'coupled', or 'connected' to another component, When a component is linked, 'connected', 'coupled', or otherwise connected to another component, Not only when they are 'connected', but also when there are further connections between that component and that other component. This may also include cases where something is 'coupled', 'coupled', or 'connected' by components.

[0077] Also, it is described as being formed or arranged "above (above)" or "below (below)" each component. When mounted, "above" or "below" means that two components are directly connected to each other. Not only when two components come into contact with each other, but also when one or more additional components are formed or Also, when it is expressed as "above (above)" or "below (below)" , it can include not only the upward direction but also the downward direction based on one component.

[0078] The 'Optical Axis Direction' used below refers to the direction of the lens drive unit. It is defined as the direction of the optical axis of the lens and / or image sensor.

[0079] The 'vertical direction' used below can be the direction parallel to the optical axis. The 'horizontal direction' used below corresponds to the direction perpendicular to the vertical direction. That is, the horizontal direction can be a direction perpendicular to the optical axis. This can include 'x-axis direction' and 'y-axis direction'.

[0080] The term 'autofocus' used below refers to the process of capturing a clear image of the subject on the image sensor. The lens is moved along the optical axis according to the distance to the subject so that the image sensor By adjusting the distance from the subject, the camera automatically focuses on the subject. On the other hand, 'auto focus' corresponds to 'AF (Auto Focus)'. This can be done.

[0081] The term "image stabilization" used below refers to the vibration caused by external forces on the image sensor. (Movement) by moving or tilting the lens in a direction perpendicular to the optical axis. On the other hand, 'image stabilization' is defined as a function that It can be used interchangeably with 'optical image stabilization' or 'optical image stabilization'. Cut.

[0082] The lens driving device according to this embodiment will be described below with reference to the drawings.

[0083] FIG. 1 is a perspective view of the lens driving device according to this embodiment, and FIG. 2 is a cross-sectional view taken along line AA in FIG. 3 is a cross-sectional view seen from BB in FIG. 1, and FIG. 4 is a cross-sectional view seen from CC in FIG. 1. 5 is a cross-sectional view taken along the line DD in FIG. 1, and FIG. 6 is a cross-sectional view of the lens driving device according to this embodiment. 7 is a perspective view of a part of the lens driving device according to this embodiment, and FIG. FIG. 9 is an enlarged view of a part of FIG. 7, and is a perspective view of the second movable element of the lens driving device according to this embodiment. 10 is a perspective view illustrating the state in which the first ball is placed in FIG. 9, and FIG. 11 is a perspective view illustrating the state in which the first ball is placed in FIG. FIG. 12 is a bottom view of the housing of the lens driving device according to the embodiment. FIG. 13 is a perspective view of a housing of the driving device, and is a perspective view of the first movable lens driving device according to the present embodiment. 14 is a perspective view of the first base of the lens driving device according to the present embodiment, and FIG. 1 5 illustrates the layout structure of the substrate and the first and second coils of the lens driving device according to this embodiment. 16 is a perspective view of FIG. 15 seen from a different direction, and FIG. 17 is a perspective view of the lens according to this embodiment. FIG. 18 is a perspective view illustrating the second ball of the lens driving device and related components. 19 and 20 are cross-sectional views of a portion of the lens driving device according to this embodiment. 21 is a perspective view showing the state in which the cover member is omitted, and FIG. 21 is a perspective view showing the state in which the cover member is omitted from FIG. 19 as seen from above. FIG. 22 is a perspective view for explaining the AF and OIS driving of the lens driving device according to this embodiment. This is a drawing of the

[0084] The lens driving device 10 may include a stator 100. The stator 100 includes a first movable element. The stator 100 can move the first mover 200 and the second mover 300. The stator 100 can accommodate the first mover 200 and the second mover 300 inside. When the second mover 300 and the second mover 100 move, they may be relatively fixed. 0 can be a fixed part.

[0085] The lens driving device 10 may include a base. The base may include a first base 110 and a second base 111. The first base 110 is a base side plate, and the second base 160 is a base side plate. 60 can be a base lower plate. The base can include four sides. It may include 1 to 4 sides.

[0086] The stator 100 may include a first base 110. The first base 110 can be disposed outside the housing 210. A first coil 130 and a second coil 140 may be disposed on the base 110 . The first base 110 can be disposed on the second base 160 .

[0087] The first base 110 may include a plurality of sides. The second side of the first base 110 may include a fourth side. The third side of the first base 110 can be disposed opposite the first base 110. 10. At this time, the first The first to fourth sides may be the first to fourth sides of the base.

[0088] The first base 110 may include a protrusion 111. The protrusion 111 may The protrusion 111 may be formed on the third side of the first base 110. The protrusions 111 may be formed on the fourth side surface. The protrusions 111 are located at the top and bottom of the side of the first base 110. The substrate 120 may be disposed between the two protrusions. The distance between the two protrusions corresponds to the length of the substrate 120 in the corresponding direction. It is possible.

[0089] The first base 110 may include a first hole 112. The first hole 112 may be The first hole 112 may be empty. The housing 210 may be disposed in the first hole 112. One hole 112 can penetrate the first base 110 in the optical axis direction.

[0090] The first base 110 may include a second hole 113. The second hole 113 is The second hole 113 may be formed at a position corresponding to the second coil 140. The coil 140 can be disposed in the second hole 113. The second magnet 220 and the The second hole 113 may be formed at a corresponding position. It can penetrate in a direction perpendicular to the direction.

[0091] The first base 110 may include a third hole 114. The third hole 114 may The 1-1 coil 131 and the 1-3 coil 133 may be formed at positions corresponding to each other. The third hole 114 is provided with the first coil 131 and the third coil 133. The third hole 114 is formed at a position corresponding to the first magnet 321. The third hole 114 penetrates the first base 110 in a direction perpendicular to the optical axis direction. This can be done.

[0092] The first base 110 may include a fourth hole 115. The fourth hole 115 may be The first-second coil 132 and the first-fourth coil 134 may be formed at positions corresponding to each other. The fourth hole 115 is provided with the first-second coil 132 and the first-fourth coil 134. The fourth hole 115 is formed at a position corresponding to the first-second magnet 322. The fourth hole 115 penetrates the first base 110 in a direction perpendicular to the optical axis direction. This can be done.

[0093] The second base 160 can be disposed below the holder 310. The second base 160 may be disposed under the first base 110. The second base 160 can be disposed under the housing 210. The second base 160 has a lower slide that limits the downward movement of the housing 210. The housing 210 may be provided with a topper. A lower stopper may be formed to limit the downward movement of the housing 210. The side stopper is formed on at least one of the housing 210 and the second base 160. It is possible.

[0094] The lens driving device 10 may include a substrate 120. The stator 100 may include a substrate 120. The substrate 120 can be disposed on the base. The substrate 120 can include: It can be a flexible printed circuit board (FPCB). The substrate 120 may be formed to be flexible. The substrate 120 may be formed as a single piece and bendable. The substrate 120 is arranged to wrap around the outer periphery of the base. A first coil 130 and a second coil 140 can be arranged on the substrate 120. The substrate 120 may be electrically connected to the first coil 130 and the second coil 140. The substrate 120 can supply current to the first coil 130 and the second coil 140. Cut.

[0095] The substrate 120 may include multiple parts. The substrate 120 may include a plurality of portions corresponding to the number of sides. The substrate 120 may include a first side of the base. The substrate 120 may include a first portion 121 disposed on the second side of the base. The substrate 120 may be disposed on a third side of the base. The substrate 120 may include a third portion 123 disposed on a fourth side of the base. It may include four portions 124.

[0096] The third portion 123 of the substrate 120 includes a first region 123-1 and a second region 123-2. The third portion 123 of the substrate 120 is a first region 12 in which the first coil 130 is disposed. 3-1 and between the two protrusions 111 of the first base 110 extending from the first region 123-1. In the optical axis direction, the first region 123-2 of the substrate 120 is arranged. The length of 123-1 (see L1 in FIG. 16) is equal to the length of the second region 123-2 of the substrate 120 (see L1 in FIG. 16). It may be longer than the L2 (see L2 in 16).

[0097] The fourth portion 124 of the substrate 120 includes a first region 124-1 and a second region 124-2. The fourth portion 124 of the substrate 120 is a first region 12 in which the first coil 130 is disposed. 4-1 and between the two protrusions 111 of the first base 110 extending from the first region 124-1. In the optical axis direction, the first region 124-2 of the substrate 120 is disposed The length of 124-1 may be greater than the length of the second region 124-2 of the substrate 120.

[0098] In this embodiment, a first coil 130 and a second coil 140 are provided on a first portion 121 of a substrate 120. In this case, the first coil 130 is disposed beside the second coil 140. The first coil 130 may be positioned on one side of the first portion 120 of the substrate 120. The second coil 140 is disposed biased to the other side of the first portion 120 of the substrate 120. In addition, the first coil 130 and the second coil 131 can be mounted on the third portion 123 of the substrate 120. 140 can be disposed together. Only the first coil 130 can be arranged. The first coil 130 and the second coil 10 may be formed to have different sizes. The first coil 130 and the second coil 40 may have different winding times. The second coil 140 is wound the same number of times, so it is possible to form it in the same size. can be done.

[0099] The substrate 120 may include a plurality of terminals. The substrate 120 may include 16 terminals. The terminals of the substrate 120 are electrically connected to the driver IC 510. The plurality of terminals of the substrate 120 may include a virtual third terminal in the first coil 130. The coil may include two terminals electrically connected to the coil arranged in one plane, i.e., The plurality of terminals of the substrate 120 are electrically connected to the first coil 131 and the third coil 133. The substrate 120 may include two terminals connected to the first coil 130. Two terminals electrically connected to the coil arranged on an imaginary second plane perpendicular to the first plane. That is, the plurality of terminals of the substrate 120 may include the first-second coil 132 and the first- 4. The substrate 120 may include two terminals electrically connected to the coil 134. The terminals may include four terminals electrically connected to the first Hall sensor 521. The plurality of terminals of the substrate 120 are electrically connected to four second Hall sensors 522. It may include a terminal.

[0100] In a variant, the substrate 120 may include 15 terminals. The first Hall sensor 521 and the second Hall sensor 522 share one terminal. The first hall sensor 521 and the second hall sensor 522 may be electrically connected to seven terminals.

[0101] The lens driving device 10 may include a first coil 130. The stator 100 includes a first The first coil 130 may be disposed on the substrate 120. The first coil 130 can face the first magnet 320. The roller 130 can move the holder 310 in a direction perpendicular to the optical axis direction. The coil 130 may be an OIS coil. When a current is supplied to the first coil 130, An electromagnetic field may be formed around the first coil 130. 30 can electromagnetically interact with the first magnet 320 .

[0102] The first coil 130 may include a coil disposed on the first portion 121 of the substrate 120. The first coil 130 can be disposed on the first portion 121 of the substrate 120. The coil 130 may include a coil disposed on the second portion 122 of the substrate 120. The first coil 130 may be disposed on the second portion 122 of the substrate 120. The coil 130 may include a coil disposed on the third portion 123 of the substrate 120. The first coil 130 may be disposed on the third portion 123 of the substrate 120. 130 may include a coil disposed on the fourth portion 124 of the substrate 120. The first coil 130 may be disposed on the fourth portion 124 of the substrate 120. The first coil 130 may be disposed on a first side of the base 110. The coil may include a coil disposed on a first side of 110.

[0103] In a variant, the first magnet 320 may be disposed on the first side of the base 110. At this time, the first coil 130 may be placed in the holder 310. The base 320 may include a magnet disposed on a first side of the base 110 .

[0104] The first coil 130 may include a plurality of first coils. The four first coils are arranged in the first to fourth portions of the substrate 120. They can be arranged in minutes 121, 122, 123, and 124, respectively.

[0105] The first coil 130 may include a first-first coil 131 and a first-third coil 133. The first-first coil 131 and the first-third coil 133 may be OIS-x coils. That is, the 1-1 coil 131 and the 1-3 coil 133 are arranged such that the holder 310 is perpendicular to the optical axis direction. The object can be moved in the first direction (x-axis direction).

[0106] The first coil 130 may include a first-second coil 132 and a first-fourth coil 134. The first-second coil 132 and the first-fourth coil 134 may be OIS-y coils. That is, the first-2 coil 132 and the first-4 coil 134 are arranged such that the holder 310 is aligned in the optical axis direction and the first direction. It can be moved in a second direction (y-axis direction) perpendicular to the direction.

[0107] The first-1 coil 131 may be a first unit coil. The first-2 coil 132 may be a second unit coil. The first-third coil 133 may be a third unit coil. The coil 134 may be a fourth unit coil.

[0108] The lens driving device 10 may include a second coil 140. The stator 100 may include a second The second coil 140 may be disposed on the substrate 120. The second coil 140 can face the second magnet 220. The lens 140 can move the holder 310 and the housing 210 in the direction of the optical axis. The second coil 140 may be an AF coil. When a current is supplied to the second coil 140, Therefore, an electromagnetic field can be formed around the second coil 140. The coil 140 can electromagnetically interact with the second magnet 220 .

[0109] The second coil 140 may include a coil disposed on the first portion 121 of the substrate 120. The second coil 140 can be disposed on the first portion 121 of the substrate 120. The second coil 140 may include a coil disposed on the second portion 122 of the substrate 120. The second coil 140 can be disposed on the second portion 122 of the substrate 120. The film 140 may not be disposed in the third portion 123 and the fourth portion 124 of the substrate 120. The second coil 140 can be disposed on the first side of the base 110. The coil may include a coil disposed on a first side of the base.

[0110] In a variant, the second magnet 220 can be disposed on the first side of the base 110. At this time, the second coil 140 can be disposed in the housing 210. The net 220 may include a magnet disposed on a first side of the base 110 . The second coil 140 may include a plurality of second coils. The second coil 140 may include a second coil 141 and a second coil 142. The second coil 141 may include a second coil 142. The second coil 141 may be formed on the first portion 1 of the substrate 120. 21. The second-second coil 142 can be disposed on the second portion 122 of the substrate 120. can be placed in

[0111] The 2-1 coil 141 may be a first unit coil. The 2-2 coil 142 may be a second unit coil. The coil may be a phase coil.

[0112] The lens driving device 10 may include a second yoke 150. The stator 100 may include a second The second yoke 150 may be made of a magnetic material. The second yoke 150 can be disposed on the substrate 120. The second yoke 150 The second magnet 220 may be overlapped in a direction perpendicular to the optical axis direction. The second yoke 150 may be made of metal. An attractive force can act between the second yoke 150 and the second magnet 220. The second magnet 220 can attract the second yoke 150. This allows the housing 210 to move the second ball 420 in the base direction. That is, pressure can be applied in the direction between the second magnet 220 and the second yoke 150. The attractive force causes contact between the housing 210 and the second ball 420 and the base and the second ball Contact between the conductor 420 can be maintained.

[0113] The lens driving device 10 can include a cover member 170. The stator 100 can be The cover member 170 can cover the first base 110. The cover member 170 can cover the base. The cover member 170 can be disposed to cover the substrate 120. The substrate 120 is disposed on the inner surface of the side plate 172 of the cover member 170. The cover member 170 may include a 'cover can'. The cover member 170 may be made of a non-magnetic material. The cover member 170 may be made of a metal. The cover member 170 may be made of a metal plate. The cover member 17 can be connected to the ground portion of the main circuit board 50. The cover member 170 can be grounded. It can block ectro magnetic interference. In this case, the cover member 170 can be called an 'EMI shield can'.

[0114] The cover member 170 may include a top plate 171 and a side plate 172. The cover member 1 can include an upper plate 171 and a side plate 172 extending from the upper plate 171. The side plate 172 of the cover member 170 can be connected to the base. The upper plate 171 includes an outer periphery or edge ( The side plate 172 may include a side plate 172 extending downward from the edge. The side panel 172 may include four side panels.

[0115] The lens driving device 10 may include a mover. The mover includes a first mover 200. and a second mover 300. The mover is arranged to move relative to the fixed part. The mover may include a housing 210 and a holder 310. Cut.

[0116] The lens driving device 10 can include a first movable element 200. The first movable element 200 includes: The first mover 200 can be disposed within the stator 100. The first movable element 200 can be arranged in the optical axis direction relative to the stator 100. At this time, the second movable element 300 moves together with the first movable element 200. The first movable element 200 can move for AF driving. The element 200 may be an AF element.

[0117] The lens driving device 10 can include a housing 210. The first mover 200 is The housing 210 may be disposed within the base. The housing 210 can be disposed outside the holder 310. The housing 210 can accommodate the holder 310 therein. The housing 210 can be moved in the optical axis direction. The housing 210 can move during AF driving. The ring 210 is movable vertically relative to the base 110 .

[0118] The housing 210 may include a top plate 211. The top plate 211 may include a holder 310. The upper plate 211 may have a first ball 410 disposed thereon. The first ball 410 can come into contact with the upper plate 211.

[0119] The housing 210 may include a side plate 212. The side plate 212 may be The side plates 212 can extend downward from the periphery of the top plate 211. The plate 212 may include multiple side plates. The plate 212 may include four side plates. Cut.

[0120] The housing 210 may include a groove 213. The groove 213 may be formed by a groove for supporting the first ball 410. The groove 213 can accommodate a part of the ball. The groove 213 can be a first ball-accommodating groove. The groove 213 can contact the first ball 410. The groove 213 prevents the first ball 410 from being released. The groove 213 can be formed so as to contact the first ball 410 at one point. Alternatively, the groove 213 can contact the first ball 410 at two points. The groove 213 can contact the first ball 410 at three or more points. 10 can be formed on the lower surface of the upper plate 211.

[0121] The housing 210 may include a groove 214. The groove 214 may accommodate a protrusion of the holder 310. The groove 214 can accommodate at least a portion of the protrusion 312 of the housing 210. The groove 214 may be formed on the inner surface of the side plate 212. The thickness of the side plate 212 of 10 may be thinner than the portion where the groove 214 is not formed.

[0122] The housing 210 may include a protrusion 215. The protrusion 215 may be 420. The protrusion 215 protrudes from the outer surface of the housing 210. The protrusion 215 can protrude outward from the side plate 212 of the housing 210. The second ball 420 is disposed between the protrusion 215 of the housing 210 and the base. The protrusion 215 may include a first surface that the second ball 420 contacts. The protrusion 215 can include a plurality of protrusions. The second ball 420 can be The plurality of protrusions of the housing 210 can be disposed on each of the plurality of protrusions. The protrusions can be arranged symmetrically with respect to the optical axis. The plurality of second balls 420 may be symmetrical with respect to the optical axis. Since the second balls 420 are movable, asymmetric moments may occur between multiple second balls 420. The protrusion 215 has a groove formed therein in which at least a portion of the second ball 420 is accommodated. The grooves of the protrusion 215 can be arranged symmetrically with respect to the optical axis.

[0123] The housing 210 may include a hole 216. The hole 216 is hollow. The hole 216 can penetrate the housing 210 in the optical axis direction.

[0124] The housing 210 may include a groove 217. The groove 217 may be formed by a groove 217 that is ... The groove 217 can accommodate at least a portion of the upper plate 211 of the housing 210. The groove 217 may be formed on the upper surface of the first yoke 230. The groove 217 may have a size and a shape corresponding to the first yoke 230. The depth of the groove 217 corresponds to the thickness of the first yoke 230. Alternatively, the depth of the groove 217 may be shorter than the thickness of the first yoke 230. In this case, a part of the first yoke 230 disposed in the groove 217 is positioned above the upper plate 211 of the housing 210. It can protrude beyond the surface.

[0125] The housing 210 may include a groove 218. The groove 218 may accommodate the second magnet 22. Groove 218 is a second magnet accommodating groove. The groove 218 is formed in a shape and size corresponding to the second magnet 220. The groove 218 may be recessed into the outer surface of the housing 210.

[0126] The lens driving device 10 may include a second magnet 220. The housing 2 may include a second magnet 220. The second magnet 220 may be The second magnet 220 can be arranged facing the second coil 140. The second magnet 220 can electromagnetically interact with the second coil 140. The second magnet 220 can be disposed on the side of the housing 210. The second magnet 220 is biased to one of the two corners of the side surface of the housing 210. It can be arranged as follows.

[0127] The second magnet 220 is connected to the second coil 140 disposed on the first portion 121 of the substrate 120. The second magnet 220 can include a magnet that can be used to rotate the coil 2-1. The second magnet 220 can include a second magnet 221. The second magnet 220 can face the first portion 12 of the substrate 120. The second magnet 220 can be attached to the second portion of the substrate 120. The second coil 140 disposed in the second magnet 122 may include a magnet. The net 220 may include a second-second magnet facing the second-second coil 142 . The second magnet 220 can face the second-second coil 142. The magnet 220 can include a magnet that faces the second portion 122 of the substrate 120 .

[0128] The second magnet 220 may include a plurality of magnets. The housing 21 includes two magnets. The second magnet 220 is attached to the housing 21. Two magnets are arranged on two opposite sides of the The second magnet 220 may include a 2-1 magnet and a 2-2 magnet. The 2-1 magnet is disposed on the first side surface of the housing 210, and the 2- The magnet may be disposed on a second side of the housing 210 opposite the first side. The 2-1 magnet faces the 2-1 coil 141, and the 2-2 magnet , can face the 2-2 coil 142.

[0129] The second-1 magnet may be the first unit magnet. The second-2 magnet may be the second It can be a unit magnet.

[0130] The lens driving device 10 includes a first yoke 230. The first mover 200 is The first yoke 230 may be made of a magnetic material. The first yoke 230 can be made of metal. The first yoke 230 may be disposed on the upper surface of the housing 210. The first yaw ball 320 and the first ball 410 may overlap in the optical axis direction. The first yoke 230 may be made of metal. The first yoke 230 is configured to hold the first magnet 320. The first magnet 320 moves in a direction approaching the first yoke 230. This allows the holder 310 to move the first ball 410 in the housing 2. 10 can be pressed on the upper plate 211 side. That is, the first magnet 320 and the first yoke The attractive force between the holder 310 and the first ball 410 causes the contact and housing Contact between the ring 210 and the first ball 410 can be maintained.

[0131] In a modified example, the first yoke 230 may be disposed on the lower surface of the upper plate 211 of the housing 210. In this case, the first ball 410 moves along the lower surface of the first yoke 230. At this time, in order to prevent the attraction force between the first ball 410 and the first yoke 230, , the first ball 410 may be formed of a non-metallic material.

[0132] The lens driving device 10 can include a second movable element 300. The second movable element 300 includes: The second mover 300 can be disposed within the first stator 100. The second movable element 300 is disposed within the first movable element 200. The second movable element 300 can be movably disposed within the first movable element 200. The second movable element 300 is arranged in the optical axis direction relative to the stator 100 and the first movable element 200. The second movable element 300 can move in the vertical direction. The second movable element 300 can be an OIS movable element.

[0133] The lens driving device 10 includes a holder 310. The second movable element 300 is The holder 310 may be disposed within the housing 210. The holder 310 can be disposed within the base. The holder 310 can be disposed in the cover member 170. The holder 310 is connected to the lens. The holder 310 can accommodate a first magnet 320. The holder 310 can move when the OIS is driven. The holder 310 can move when the AF is driven. The holder 310 can move together with the housing 210 even when the housing 210 is in operation. 210 can be moved horizontally.

[0134] The holder 310 has a first side surface and a second side surface that are disposed opposite to each other, and It may include a third side and a fourth side disposed thereon.

[0135] The holder 310 may include a groove 311. The groove 311 may accommodate a small amount of the first ball 410. The groove 311 can be a first ball receiving groove. 11 can contact the first ball 410. The groove 311 allows the first ball 410 to separate. The groove 311 can be formed so as to contact the first ball 410 at one point. Alternatively, the groove 311 can contact the first ball 410 at two points. The groove 311 can contact the first ball 410 at three or more points. The insulating layer 310 may be formed on the upper surface of the insulating layer 310.

[0136] The holder 310 may include a protrusion 312. The protrusion 312 may include a first magnet. The protrusion 312 protrudes from the outer surface of the holder 310. The protrusion 312 has a groove formed therein in which the first magnet 320 is disposed. At least a portion of the protrusion 312 is formed on the inner circumferential surface of the housing 210. The groove 214 can be disposed in the groove 214 .

[0137] The holder 310 may include a hole 313. The hole 313 may be hollow. The hole 313 can accommodate a lens. can be passed through in the optical axis direction.

[0138] The lens driving device 10 may include a first magnet 320. The holder 31 may include a first magnet 320. The first magnet 320 may be attached to the holder 31. The first magnet 320 can be arranged facing the first coil 130. The first magnet 320 can electromagnetically interact with the first coil 130. The first magnet 320 can be disposed on the side of the holder 310. The magnet 320 may be arranged biasedly at one corner of the side of the holder 310. can.

[0139] The first magnet 320 is connected to the first coil 130 disposed in the first portion 121 of the substrate 120. The first magnet 320 can include a magnet that can be used to rotate the first coil 131. The first magnet 320 can include a magnet that can be used to rotate the first coil 131. The first magnet 320 faces the first portion 121 of the substrate 120. The first magnet 320 may be attached to the first portion 121 of the substrate 120. You can hope for the following.

[0140] The first magnet 320 may include a plurality of first magnets. The first magnet 320 can include four first magnets. The first magnet 321 and the first-second magnet 322 can be included. The first magnet 321 may be an OIS-x magnet. The 1-1 magnet 321 faces the 1-1 coil 131. The first coil 132 may include a magnet facing the first-third coil 133 and a magnet facing the first-third coil 133. The -2 magnet 322 is a magnet facing the first-2 coil 132 and a magnet facing the first-4 coil. The first magnet 320 may include a magnet facing the holder 134. The magnets may include four magnets arranged on each of the four sides of 310.

[0141] The lens driving device 10 may include a first ball 410. The first ball 410 may include: The first ball 410 can contact the holder 310 and the housing 210. The first ball 410 may be disposed between the rotor 310 and the housing 210. The first ball 410 may be disposed on the upper surface of the holder 310. The first ball 410 can contact the lower surface of the upper plate 211 of the holder 310. The housing 210 can be guided to move in a direction perpendicular to the optical axis direction. The first ball 410 can guide the OIS drive of the holder 310. The ball 410 may be an OIS ball. The first ball 410 may be formed in a spherical shape. Either the housing 210 or the holder 310 that comes into contact with the first ball 410 can be One or more of the housing 210 and the holder 310 may be made of metal. At this time, the housing 210 and the holder 310 may be formed by injection molding. A mark may be generated by the first ball 410. To improve this, At least one of the nut 210 and the holder 310 may have a metal insert or a separate That is, the first ball 410 is connected to the housing. The metal placed on the holder 310 and the gasket 210 can move in contact with each other.

[0142] In this embodiment, the first balls 410 may be arranged in a single layer structure. The ball that guides in the OIS-X direction and the ball that guides in the OIS-Y direction are virtual balls. Therefore, the groove 311 of the holder 310 can be arranged on a virtual plane. Multiple balls arranged on the plane guide the sensor in both the OIS-X and OIS-Y directions. Similarly, the groove 213 of the housing 210 can also be formed as a temporary Multiple balls arranged on a single plane are guided in both the OIS-X and OIS-Y directions. The groove 311 of the holder 310 and the housing 312 can be formed so as to be able to guide the holder 310. The groove 213 of the ring 210 may be larger than the size of the first ball 410. Either one or more of the groove 311 of the rod 310 and the groove 213 of the housing 210 is omitted. That is, only the groove 311 of the holder 310 is formed, and the groove of the housing 210 is not formed. 213 may not be formed. Conversely, the groove 213 of the housing 210 may be formed to allow the holder The groove 311 of the holder 310 may not be formed. The groove 213 of the ring 210 may also be omitted.

[0143] The first ball 410 may include a plurality of first balls. In this case, the imaginary plane connecting the centers of the four balls is The first balls may be perpendicular to the optical axis direction. The first balls may have the same size as each other. .

[0144] The lens driving device 10 may include a second ball 420. The second ball 420 may include: The second ball 420 can contact the housing 210 and the base. The second ball 420 can be disposed between the housing 210 and the base. The housing 210 can be disposed on the protrusion 215. The second ball 420 may include a groove for receiving at least a portion of the second ball 420. The second ball 420 can be disposed on a base. The base can include at least one The second ball 420 may include a groove for receiving a portion of the housing 210. The second ball 420 can be guided to move in the optical axis direction relative to the housing. The second ball 420 is an AF ball. The second ball 420 may be formed in a spherical shape.

[0145] The second ball 420 may include a plurality of second balls. The second ball 420 may include two balls arranged symmetrically with respect to the axis. The balls 420 can include six balls. In this case, the second balls 420 are located in the corner areas of one side. Three second balls can be arranged in each of the diagonal corner regions. The imaginary plane can contain the optical axis or be parallel to the optical axis.

[0146] The lens driver 10 may include a driver IC 510. 10 may include a Hall element that senses the second magnet 220. The Hall element , the second magnet 220 can be sensed. The Hall element can sense the position and movement of the second magnet 220. The Hall element can sense one or more of the following: It is possible to sense at least one of the position and the amount of movement of the optical axis of the sensor 310. The value sensed by the control element can be used as feedback for the AF drive.

[0147] The driver IC 510 can be disposed on the substrate 120. The driver IC 510 may be disposed on the first portion 121 of the substrate 120. , may be electrically connected to the second coil 140. The driver IC 500 The driver IC 500 can control the current applied to the coil 140. An electrical current can be provided to the coil 140 .

[0148] The lens driving device 10 may include a capacitor 511. is in case a large voltage is input to the driver IC500 or the voltage suddenly drops. The capacitor 511 can be connected to an external power source. , can be input to the driver IC 500 via the capacitor 511. The shifter 511 and the driver IC 500 can be connected in series.

[0149] The lens driving device 10 may include a Hall sensor 520. The Hall sensor 520 can be disposed on the substrate 120. The Hall sensor 520 can sense the magnetic field of the first magnet 320. The Hall sensor 520 can detect the position and It can sense one or more of the following:

[0150] The Hall sensor 520 may include multiple Hall sensors. 520 can include two Hall sensors, so that the Hall sensors 52 0 indicates the position and movement in two axes (x-axis and y-axis) perpendicular to the optical axis direction of the housing 210. The Hall sensor 520 can detect one or more of the following movements: The calculated value can be used for feedback to drive the OIS.

[0151] The hall sensor 520 includes a first hall sensor 521 and a second hall sensor 522. The Hall sensor 520 is configured to detect the light in a first direction perpendicular to the optical axis of the holder 310. The first hall sensor 521 may include a first hall sensor 521 that detects movement to the 0 is a second sensor for detecting the movement of the holder 310 in the optical axis direction and in a second direction perpendicular to the first direction. A Hall sensor 522 may be included.

[0152] In this embodiment, the lens driving device 10 includes a driving unit. The driving unit may include a coil and a magnet for moving the first driving unit. The first driving unit can move the holder 310. The first drive unit can move the housing 210. The second driving unit includes a coil 130 and a first magnet 320. The second driving unit can move the second coil 140 and the housing 210 together. and a second magnet 220.

[0153] At least a part of the first drive unit and at least a part of the second drive unit are disposed on the first side of the base 110. The first and second driving units can be disposed on the four sides of the base 110. The second drive unit can be disposed on two opposite sides of the base 110. The first driving unit can be disposed on the remaining two sides of the base 110. The second driving unit can be disposed on two sides of the base 110 facing each other. can be arranged on the four sides.

[0154] In this embodiment, the AF drive unit is supported diagonally, and the attractive force between each yoke and magnet is The AF structure includes an AF drive unit and a fixed unit that are in close contact with each other and multiple balls are located between them. Here, the AF driving part is the first movable element 200, and the fixed part is the stator 100. obtain.

[0155] In this embodiment, the holder 310 is located inside the AF driving unit, and the driving masters are located diagonally. The magnet and the opposing coil are used to drive the lens in a direction perpendicular to the optical axis to correct the vibration. In this case, the OIS driver is located on the upper side of the housing 210. The attractive force between one or more yokes placed on the magnet and the opposing magnets is generated, and the ball Furthermore, in this embodiment, multiple units can be positioned in each direction so that the unit can move in the X and Y directions. The grooves may be formed on the same surface.

[0156] The first drive unit can move the housing 210. The second drive unit can move the holder The first drive unit can move the bases 110 facing each other. The second driving unit can be disposed on the first side and the third side of the base 11. a first unit driving part disposed on the first side surface of the base 110; and a part disposed on the fourth side surface of the base 110. The first unit driver and the second unit driver may include a second unit driver. The other part of the first unit driver can move in different directions. The other part of the second unit driver may be disposed on the third side of the base 110. The second side surface of the base 110 may be located on the second side surface opposite to the fourth side surface of the base 110. The first unit driver arranged on the first side and the third side may be a first unit coil. There are at least two first unit coils, one of which is disposed on the first side surface; The other one may be disposed on the third side surface. The first unit magnet may include at least one first unit magnet arranged in the first direction. The two can be connected to the holder 310. The first and third sides of the base 110 The first driving unit to be arranged may be the first coil 130. 0, a first magnet 320 may be included coupled to the housing 210.

[0157] The second driving unit may include a second coil 140 and a second magnet 220. The coil 140 may include a first unit coil and a second unit coil. , the second magnet 220 may include a first unit coil and a first unit magnet. The second unit driving part may include a first unit magnet and a second unit magnet. The first driving unit may include a first coil 130 and a second unit magnet. and a first magnet 320.

[0158] The driving unit includes a first unit coil or a first unit magnet disposed on a first side of the base 110. a first unit driving part including a net and a second unit coil disposed on the fourth side of the base 110; Alternatively, the first unit driving unit may include a second unit magnet. The second unit drivers can move the holders 310 in different directions. The first corner (or angle) where the first and fourth sides meet and the third and fourth sides meet are also shown. The first unit coil and the second unit coil may each include a fourth corner where the surfaces meet. One first unit coil and one second unit coil among the plurality of coils are connected to the fourth coil. The base 110 can be disposed adjacent to the first corner rather than the center. The third corner may be located diagonally opposite the first corner. The first unit coil and the other second unit coil are closer to the third corner than to the fourth corner. They can be arranged so that they are in contact with each other.

[0159] The lens driving device 10 according to this embodiment is configured such that the AF unit is assembled after the OIS unit is assembled. After that, the process sequence for assembling the base and cover member 170 can be followed.

[0160] In this embodiment, the ball guide structure for AF driving can be positioned diagonally. The attractive force between the moving magnet and the yoke causes the ball to adhere to the ball guide. It includes a structure in which attractive forces act in two directions, driving the balls in close contact with each other. can be done.

[0161] In this embodiment, the OIS drive magnet is a magnetic substance located on the upper side of the housing 210. The attractive force of the arc allows the balls to be tightly attached while driving the OIS. The ball is located between the inner ceiling surface of the housing 210 and the upper surface of the holder 310. The ball guide grooves formed on the plane are formed so that they can move in directions perpendicular to each other. It is possible.

[0162] In this embodiment, multiple OIS magnets and coils can be arranged diagonally. do.

[0163] In this embodiment, when a forward current is applied to the second coil 140, the second coil 140 and the first coil 140 are connected to each other. The electromagnetic interaction between the second magnet 220 and the optical axis ( At this time, the housing 210 and the holder 31 can move upward along the z-axis. 0 can also move upward together with the second magnet 220 (see AF ​​in FIG. 22).

[0164] When a reverse current is applied to the second coil 140, the second coil 140 and the second magnet 2 20, the second magnet 220 moves downward along the optical axis. At this time, the housing 210 and the holder 310 are also connected to the second magnet 22. It can move downwards with 0 (see AF ​​in Figure 22).

[0165] When a current is applied to the 1-1 coil 131 and the 1-3 coil 133, the 1-1 coil 131, the first-third coil 133, and the first-first magnet 321. Therefore, the 1-1 magnet 321 moves in the first direction (x-axis direction) perpendicular to the optical axis direction. At this time, the holder 310 also moves in the first direction together with the first-1 magnet 321. However, when a current flows through the first-first coil 131, When the voltage is applied, the holder 310 moves to one side of the x-axis, and current flows through the first to third coils 133. When applied, the holder 310 may be controlled to move to the other side in the x-axis. When a positive current is applied to the first coil 131 and the third coil 133, the holder 310 moves to one side of the x-axis, and the 1-1 coil 131 and the 1-3 coil 133 are connected in the opposite direction. When a current is applied, the holder 310 may be controlled to move to the other side in the x-axis. The first-first coil 131 and the first-third coil 133 can be electrically controlled separately. Alternatively, the first coil 131 and the third coil 133 may be electrically connected. can.

[0166] When a current is applied to the first-second coil 132 and the first-fourth coil 134, the first-second coil 132, the first-fourth coil 134, and the first-second magnet 322. Therefore, the first-second magnet 322 is oriented in a second direction (y-axis direction) perpendicular to the optical axis direction and the first direction. At this time, the holder 310 can also move to the first position together with the first-second magnet 322. It can move in two directions (see OIS Y in Figure 22). However, the first and second coils 13 When a current is applied to the coil 2, the holder 310 moves to one side of the y-axis, and the first to fourth coils 13 When a current is applied to 4, the holder 310 may be controlled to move in the other direction along the y-axis. Alternatively, when a forward current is applied to the first-second coil 132 and the first-fourth coil 134, , the holder 310 moves to one side in the y-axis, and the first-second coil 132 and the first-fourth coil 13 When a reverse current is applied to the holder 310, the holder 310 is controlled to move to the other side of the y-axis. The first-second coil 132 and the first-fourth coil 134 may be electrically controlled separately. Alternatively, the first-second coil 132 and the first-fourth coil 134 may be electrically connected. It can be done.

[0167] A camera module according to a modified example will be described below with reference to the drawings.

[0168] FIG. 23 is an exploded perspective view of a lens driving device according to a modified example, and FIG. 24 is a perspective view of a lens driving device according to a modified example. 24 is a perspective view of a part of the structure of the lens drive device, FIG. 25 is an enlarged view of a part of the area of ​​FIG. 24, and FIG. 26 is a perspective view of a part of the structure of the lens drive device, FIG. 10 is a perspective view of a partial configuration of a lens driving device according to a modified example.

[0169] In the following, the configuration of the camera module according to the modified example will be compared with the camera module according to this embodiment. The following description will focus on the differences. The configurations not described below are the same as those of the camera module according to this embodiment. The description of the corresponding configuration of can be applied analogously.

[0170] The lens driving device 10 may include a guide portion. The guide portion may include a holder 310 and a The guide portion can be disposed between the housing 210 and the guide portion. The retainer (first yoke 230a) and the first ball 410 disposed in the hole 231 are included. The guide portion overlaps the holder 310 and the housing 210 in the optical axis direction. The retainer can be arranged to be held in place by the holder 310 or the housing. The first ball 410 can be coupled to the ball 210. The first ball 410 can move in a direction perpendicular to the optical axis direction. The retainer can function as a yoke. The retainer can have magnetic properties. The retainer and the first magnet An attractive force can act between the nozzle 320 and the nozzle 320.

[0171] The lens driving device 10 may include a first yoke 230a. The first armature 200 may include a first yoke 230a. The first yoke 230a may be made of a magnetic material. The first yoke 230a may be made of metal. The first yoke 230a is fixed to the housing 210. The first yoke 230a can be coupled to the housing 210. The first yoke 230a may be disposed below the upper plate 211 of the housing 210. The yoke 230 a can be disposed on the lower surface of the upper plate 211 of the housing 210 . The first yoke 230a can be fixed to the lower surface of the upper plate 211 of the housing 210. The first yoke 230a is located at one of the two corner regions on the top surface of the holder 310. The first yoke 230a can be positioned closer to the core region. The first yoke 230a can be overlapped with the first yoke 20 in the optical axis direction. An attractive force is generated between the first yoke 230a and the first magnet 320. The first yoke 230a can attract the first magnet 320. The first magnet 320 can move in a direction approaching the first yoke 230a. This allows the holder 310 to attach the first ball 410 to the upper plate 2 of the housing 210. That is, the first magnet 320 and the first yoke 230a can be pressed against each other. The attractive force between the holder 310 and the first ball 410 causes the contact between the holder 310 and the first ball 410 and the housing 21 0 and the first ball 410 can be maintained.

[0172] In this embodiment, the cross section of the first yoke 230a is formed in a shape of a rotated U or ⊂. At this time, both ends of the first yoke 230a are connected to the housing 210. In a modified example, the cross section of the first yoke 230a may be formed in a substantially inverted U shape. At this time, both ends of the first yoke 230a can be coupled to the holder 310. Cut.

[0173] In this embodiment, the first magnet 320 is a first magnet 1-1 disposed on the first side of the holder 310. The magnet 321 and the first-second magnet 322 are disposed on the second side of the holder 310. and a first-third magnet 323 disposed on the third side surface of the holder 310. 0, a fourth magnet 324 may be included, which is disposed on the fourth side of the fourth magnet 324.

[0174] The first-1 magnet 321 may be a first unit magnet. The first to third magnets 323 may be the third unit magnets. The first to fourth magnets 324 may be fourth unit magnets.

[0175] At this time, the first yoke 230a overlaps with the 1-1 magnet 321 in the optical axis direction. The first-first yoke 230-1 and the first-second magnet 322 are overlapped in the optical axis direction. The first-second yoke 230-2 and the first-third magnet 323 are aligned in the optical axis direction. The first-third yoke 230-3 and the first-fourth magnet 324 are burlapped together in the optical axis direction. The first yoke 230 may include a first-fourth yoke 230-4 that is overlapped. The first yoke 230a may include a plurality of first yokes. may include:

[0176] The first yoke 230a may include a hole 231. The first ball 410 can be disposed in the hole 231. The first ball 410 can be rotatably disposed on the first yoke 231. The diameter of the hole 231 of 0a corresponds to the diameter of the first ball 410 or The hole 231 of the first yoke 230a may be formed larger than the diameter of the connecting plate 230b. The holes 231 of the first yoke 230a can be formed in the numbers 1-1 to 233. Three equally spaced rods are provided on each of the first to fourth yokes 230-1, 230-2, 230-3, and 230-4. can be formed one by one.

[0177] The first yoke 230a may include a side plate 232 and a connecting plate 233. 30a includes two side plates 232 whose upper ends are fixed to the housing 210. The first yoke 230a may include a connecting plate 233 that connects the two side plates 232. The connecting plate 233 of the first yoke 230a is connected to the center of the first ball 410 in a direction perpendicular to the optical axis direction. It can be overlapped with the mind.

[0178] In this embodiment, the first ball 410 is rotatably disposed in the hole 231 of the first yoke 230a. It can be done.

[0179] The guide portion includes a first ball, a second ball, a first hole in which the first ball is accommodated, and a second ball. The first ball may include a retainer having a second hole in which the first ball is received. The second ball rotates in the second hole, and the second driving part rotates in the second hole. a first unit drive that drives the holder 310 in a first direction by the first ball and the second ball; The first ball and the second ball drive the holder 310 in a second direction different from the first direction. The first ball and the second ball may include a second unit driving unit for driving the first hole and the second ball. The first ball and the second ball can be separated by a first hole and a second hole. The distance between the first and second holes may be greater than or equal to the distance between the first and second balls. If the diameter of the second ball is larger than the diameter of the ball, the separation distance between the first and second balls is , may be smaller than the separation distance between the first hole and the second hole.

[0180] Hereinafter, a camera module according to this embodiment will be described with reference to the drawings.

[0181] FIG. 27 is an exploded perspective view of the camera module according to this embodiment.

[0182] A camera module is a camera device. device).

[0183] The camera module may include a lens module 20. The image sensor 60 may include at least one lens. The lens module 20 includes a lens and a barrel. The lens module 20 can be coupled to the bobbin 210 of the lens driving device 10. The lens module 20 can be attached to the bobbin 210 by threads and / or adhesive. The lens module 20 moves together with the bobbin 210. It is possible.

[0184] The camera module may include a filter 30. The filter 30 may be attached to a lens Light in a specific frequency band passing through the module 20 is incident on the image sensor 60. The filter 30 is parallel to the xy plane. The filter 30 can be arranged between the lens module 20 and the image sensor. The filter 30 can be placed between the sensor base and the sensor 60. The filter 30 can include an infrared filter. The filter can block light in the infrared region from entering the image sensor 60. The infrared filter may include an infrared reflecting filter or an infrared absorbing filter. This can be done.

[0185] The camera module may include a sensor base. The sensor base may include a lens. The sensor base can be disposed between the drive unit 10 and the printed circuit board 50. , the filter 30 may include a protrusion on which the filter 30 is disposed. At the sensor base, light passing through the filter 30 is incident on the image sensor 60. An opening can be formed so that the sensor base and the lens driving device can An adhesive member can be disposed between the lens driving device 10 and the lens driving device 1. The adhesive member can be attached to the upper surface of the sensor base. The adhesive may be made of epoxy or heat curing material. The adhesive may include at least one of a heat-curable adhesive and an ultraviolet-curable adhesive.

[0186] The camera module is mounted on a printed circuit board 50 (PCB). The printed circuit board 50 can be a substrate or a circuit board. The lens driving device 10 can be mounted on the printed circuit board 50. A sensor base can be disposed between the front circuit board 50 and the lens driving device 10. The printed circuit board 50 can be electrically connected to the lens driving device 10. An image sensor 60 can be disposed on the printed circuit board 50. The circuit board 50 converts the image formed on the image sensor 60 into an electrical signal and outputs it to the outside. In order to transmit the signal to the external device, various circuits, elements, control units, etc. are provided.

[0187] The camera module may include an image sensor 60. 0 is a configuration in which light that has passed through a lens and a filter 30 is incident and an image is formed. The image sensor 60 can be mounted on the printed circuit board 50. The sensor 60 can be electrically connected to the printed circuit board 50. The image sensor 60 is mounted on the printed circuit board 50 using surface mount technology (SMT). Other examples include: The image sensor 60 is mounted on the printed circuit board 50 by flip chip mounting. p) technology. The image sensor 60 is aligned with the lens in the optical axis direction. That is, the optical axis of the image sensor 60 and the optical axis of the lens can be aligned. The image sensor 60 is aligned. Light falling on the active image area of ​​the sensor 60 can be converted into an electrical signal. The image sensor 60 is a CCD (charge coupled device) element), MOS (metal oxide semi-conductor, metal oxide semiconductor), CPD and CID.

[0188] The camera module may include a motion sensor 70. The motion sensor 70 can be mounted on the printed circuit board 50. It is electrically connected to the control unit 80 through a circuit pattern provided on the printed circuit board 50. The motion sensor 70 detects the rotational angular velocity information due to the movement of the camera module. The motion sensor 70 is a two-axis or three-axis gyro sensor. It may include a Gyro Sensor, or an angular velocity sensor.

[0189] The camera module may include a control unit 80. The control unit 80 may include a printed circuit board The control unit 80 can be arranged in the coil 130 of the lens driving device 10. The control unit 80 controls the direction and strength of the current supplied to the coil 130. The control unit 80 controls the lens driving device 10 so as to individually control the speed, amplitude, etc. The control unit 80 controls the Hall sensor 1 to perform the autofocus function. The control unit 80 can be electrically connected to the Hall sensor 140. The position of the movable element 200 is sensed to control the autofocus feed for the lens driving device 10. Back control can be performed.

[0190] The camera module may include a connector 90. The connector 90 may be connected to a printer. The connector 90 can be electrically connected to the external circuit board 50. It may include a port for connecting to the

[0191] The optical device according to this embodiment will be described below with reference to the drawings.

[0192] FIG. 28 is a perspective view of the optical device according to this embodiment. Optical devices include mobile phones, smartphones, and portable communication devices. , portable smart devices, mobile terminals, digital cameras, computers, notebook computers laptop computers, digital broadcasting terminals, PDAs (Personal Digital Assistants) nal Digital Assistants), PMP(Portable Multi Timedia Player) and navigation. However, the type of optical equipment is not limited to this, and any other equipment for taking images or photographs is also acceptable. The device may also be included in an optical instrument.

[0193] The optical device may include a body 1. The body 1 may form the exterior of the optical device. The main body 1 can accommodate the camera module 2. The first surface of the main body 1 has: For example, the display 3 may be disposed on the first surface of the main body 1. The camera module 2 is disposed on the second surface of the main body 1 opposite to the first surface. 2 can be added.

[0194] The optical device may include a camera module 2. The camera module 2 may be mounted on the main body 1. The camera module 2 can be arranged at least partially inside the main body 1. The camera module 2 can be provided in plural. Module 2 can include dual, triple, or even more camera modules. The camera modules 2 are disposed on a first surface of the main body 1 and a second surface opposite to the first surface of the main body 1. The camera module 2 can capture images and / or videos of an object. It can be projected.

[0195] The optical device may include a display 3. The display 3 is disposed on the main body 1. The display 3 can be disposed on the first surface of the main body 1. The display 3 can output images and / or videos captured by the camera module 2. This can be done.

[0196] Although the embodiments of the present invention have been described above with reference to the accompanying drawings, A person having ordinary skill in the art would understand that the present invention is different from the present invention without changing its technical idea or essential features. It should be understood that the present invention can be embodied in various specific forms. It should be understood that the described embodiments are illustrative in all respects and not restrictive. It must be.

Claims

1. a fixed part; a mover arranged to move relative to the fixed part and including a housing and a holder; and; a drive unit for moving the mover; The driving unit includes a first driving unit that moves the holder and a second driving unit that moves the housing. Two drives are included, At least a part of the first driving section and at least a part of the second driving section are A lens driving device disposed on the first side.

2. The first driving unit includes a first coil and a first magnet, and the second driving unit includes a second coil and a 2. The lens driving device according to claim 1, further comprising a second magnet and a third magnet.

3. 3. The method of claim 2, wherein the first coil and the second coil are disposed on the first side of the fixed portion. The lens driving device according to claim 1.

4. The first magnet and the second magnet are disposed on the first side surface of the fixed portion. The lens driving device according to claim 2 .

5. the fixed portion includes a base and a substrate disposed on the base; the base includes first to fourth sides; The substrate according to claim 2 , wherein the substrate includes a first portion disposed on the first side of the base. Lens drive unit.

6. The first coil moves the holder in a direction perpendicular to the optical axis direction, the second coil moves the holder and the housing in the optical axis direction. Item 3. The lens driving device according to item 2.

7. the second side of the base is disposed opposite the first side of the base; the substrate includes a second portion disposed on the second side of the base; The first coil and the second coil are each a coil disposed on the second portion of the substrate. The lens driving device according to claim 5 , comprising:

8. the third side of the base is disposed opposite the fourth side of the base; The substrate includes a third portion disposed on the third side surface of the base, and a third portion disposed on the third side surface of the base. a fourth portion disposed on the four sides; 8. The method of claim 7, wherein the second coil is not disposed on the third portion and the fourth portion of the substrate. The lens driving device according to claim 1.

9. The first coil includes a coil disposed in the third portion and the fourth portion of the substrate. The lens driving device according to claim 8 .

10. a base including first through fourth sides; a housing that moves vertically relative to the base; a holder that moves horizontally relative to the housing; a first drive for moving the housing; a second drive unit for moving the holder; A portion of the first driving portion is disposed on the first side surface and the third side surface facing each other. hand, The second driving section includes a first unit driving section, a part of which is disposed on the first side surface, and a second unit driving section, a part of which is disposed on the first side surface. a second unit driver disposed on the fourth side surface, The first unit driving unit and the second unit driving unit move the holder in different directions. A lens drive device that

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