Camera module

Abstract

The present embodiment relates to a camera module, comprising: a housing including a first surface; a holder including a lens and including a second surface, the second surface facing the first surface and forming an outer surface of the holder; and a guide member disposed between the first surface and the second surface, wherein the first surface and the second surface have curved surfaces, the curved surface of the second surface being a curved surface whose central portion protrudes further outward than its top and bottom portions, and the curved surface of the first surface being a curved surface whose central portion is more recessed than its top and bottom portions.

Description

Technical Field

[0001] The present invention relates to a camera module. Background Art

[0002] With the widespread popularity of various portable terminals and the commercialization of wireless Internet services, consumers' demands regarding portable terminals are also diversifying, and thus various types of additional devices are installed in the portable terminals.

[0003] Among them, there are camera modules for capturing subjects as photos or moving pictures. Meanwhile, in recent years, camera modules with a hand shake correction function that prevents images from shaking due to hand shake of a photographer have been applied.

[0004] However, the OIS structure of the conventional camera module tilt method is a dual-axis image stabilization method for yaw / pitch rotating around the X-axis / Y-axis, and has a disadvantage in that hand shake caused by roll rotating around the Z-axis cannot be corrected. Summary of the Invention

[0005] Technical Topics

[0006] The present embodiment is directed to providing a camera module capable of driving auto focus (AF) using a module tilt method in which a lens and an image sensor move together, and 3-way image stabilization (OIS) in yaw, pitch, and roll directions.

[0007] Technical Solution

[0008] A camera module according to the present embodiment includes: a housing including a first surface; a holder including a lens and including a second surface, the second surface facing the first surface and formed on an outer side surface of the holder; and a guide member disposed between the first surface and the second surface, wherein the first surface and the second surface have curved surfaces, wherein the curved surface of the second surface is a curved surface in which a central portion is more convex outward than an upper portion and a lower portion, and wherein the curved surface of the first surface may be a curved surface in which a central portion is more concave outward than an upper portion and a lower portion.

[0009] The holder is driven to be tilted relative to the outer cover; the upper portion of the second surface is the uppermost portion contacted by the guide member when the holder is tilted about a first axis perpendicular to the optical axis of the lens; and the lower portion of the second surface can be the lowermost portion contacted by the guide member when the holder is tilted about the first axis.

[0010] The outer circumference of the holder may have a circular shape, and the thickness of the outer circumference of the holder may be formed such that a central portion is thicker than an upper portion or a lower portion.

[0011] The first surface may include a groove in which the guide member is positioned.

[0012] The guide member may be fixed to the groove.

[0013] A curvature of the curved surface of the first surface may be the same as a curvature of the curved surface of the second surface.

[0014] A curvature of the curved surface of the first surface and a curvature of the curved surface of the second surface may be different from each other.

[0015] The guide member may include a first rolling ball and a second rolling ball, and the first rolling ball and the second rolling ball may be disposed at positions symmetrical to each other with respect to the central portion.

[0016] The camera module may include: a bobbin disposed inside the holder; a first coil disposed in the bobbin; a magnet disposed in the holder; and a second coil disposed in the housing.

[0017] The camera module may include: a first substrate coupled to the holder; a lens disposed in the bobbin; and an image sensor disposed in the first substrate.

[0018] The camera module may include: a second substrate disposed below the first substrate; and an elastic member connecting the first substrate and the second substrate, wherein the cover may be coupled to the second substrate.

[0019] The elastic member may be formed so that the first substrate and the second substrate are spaced apart from each other in an initial state in which no current is applied to the first coil and the second coil.

[0020] The elastic member may include an inner portion coupled to the first substrate, an outer portion coupled to the second substrate, and a connection portion connecting the inner portion and the outer portion, wherein the connection portion has elasticity and may include a bent shape.

[0021] The elastic member may include a plurality of elastic portions spaced apart from each other and electrically connecting the first substrate and the second substrate, and the plurality of elastic portions may include at least 20 elastic portions.

[0022] The camera module includes a cover coupled to the second substrate, wherein the housing is positioned in the cover and may be coupled to the cover.

[0023] The outer cover includes a plurality of bodies spaced apart from each other, and each of the plurality of bodies may be fixed to an inner surface of the side plate of the cover by an adhesive.

[0024] The camera module includes a third substrate electrically connected to the second substrate, and the second coil may be disposed in the third substrate.

[0025] The third substrate includes a first surface facing the magnet and a second surface opposite to the first surface of the third substrate; the second coil is disposed on the first surface of the third substrate; and a metal yoke may be disposed on the second surface of the third substrate.

[0026] The third substrate may be coupled to the housing.

[0027] When current is applied to the first coil, the coil bobbin moves along the optical axis due to electromagnetic interaction between the first coil and the magnet, thereby varying the distance between the lens and the image sensor.

[0028] The second coil includes a first coil portion to a third coil portion, and current is applied separately to the first coil portion to the third coil portion, wherein the magnet includes a first magnet to a third magnet, wherein the first magnet has a first surface facing the first coil and a second surface disposed opposite to the first surface of the first magnet and facing the first coil portion, wherein the second magnet includes a first surface facing the first coil and the second surface and a second surface disposed opposite to the first surface of the second magnet and facing the second coil portion, and wherein the third magnet can face the third coil portion.

[0029] The second surface of each of the first and second magnets includes a first area and a second area, the second area is positioned below the first area and has a polarity different from the polarity of the first area; the third magnet includes a first surface facing the third coil portion; and the first surface of the third magnet may include a first area and a second area, the second area is positioned on one side of the first area of ​​the third magnet and has a polarity different from the polarity of the first area of ​​the third magnet.

[0030] The first surface of each of the first magnet and the second magnet includes a third region and a fourth region, the fourth region is positioned below the third region and has a polarity different from that of the third region, and the first coil can overlap with one of the third region and the fourth region in a direction perpendicular to the optical axis.

[0031] When current is applied to the first coil portion, the retaining member rotates around a first axis perpendicular to the optical axis; when current is applied to the second coil portion, the retaining member rotates around a second axis perpendicular to the optical axis and the first axis; and when current is applied to the third coil portion, the retaining member can rotate around the optical axis.

[0032] When the holder rotates, the bobbin, the lens, and the image sensor may rotate integrally with the holder to maintain a distance between the lens and the image sensor.

[0033] The guide member may include a first ball.

[0034] The guide member may include a second ball disposed between the bobbin and a holder.

[0035] The holder may include a groove formed on an inner surface of the holder, the second rolling ball being seated in the groove, and the groove of the holder may extend longer than a diameter of the second rolling ball in the optical axis direction.

[0036] The camera module may include an elastic member connecting the bobbin and a holder.

[0037] The camera module may include: a sensor base disposed between the bobbin and the first substrate; and an optical filter disposed in the sensor base.

[0038] The first rolling balls may include eight rolling balls passing through a first virtual plane perpendicular to the optical axis and eight rolling balls passing through a second virtual plane perpendicular to the optical axis and spaced apart from the first plane.

[0039] The first rolling balls may include four rolling balls, a third virtual plane including the optical axis passes through the four rolling balls, and the four rolling balls may be symmetrical with respect to the optical axis.

[0040] An optical device according to this embodiment includes a main body; a camera module disposed on the main body; and a display disposed in the main body and outputting an image photographed by the camera module.

[0041] The camera module according to this embodiment includes: a stator including a first coil; a mover including a lens and disposed inside the stator; and a guide component disposed between the stator and the mover, wherein the mover includes a first mover and a second mover, the first mover includes a second coil, and the second mover includes a magnet, wherein the first mover is disposed inside the second mover and is movably disposed along a first axis, wherein the second mover is disposed to be able to rotate around a first axis, a second axis different from the first axis, and a third axis different from the first axis and the second axis, and wherein the magnet may include a first magnet and a second magnet, the first magnet rotates the first mover relative to an axis in the second axis and the third axis by interacting with the first coil, the second magnet rotates the first mover relative to the first axis by interacting with the second coil, and moves the second mover along the first axis.

[0042] According to this embodiment, the camera module includes: a stator including a first coil and a second coil; a mover including a lens and disposed on the inner side of the stator; and a guide component disposed between the stator and the mover, wherein the mover includes a first mover and a second mover, the first mover includes a third coil, and the second mover includes a magnet, wherein the magnet includes a first magnet and a second magnet, wherein the first mover is disposed to be movable along the first axis through interaction between the second magnet and the third coil, and wherein the mover can be disposed to rotate around the first axis by the first magnet and the first coil, and to rotate around a second axis different from the first axis by the second magnet and the second coil.

[0043] According to the present embodiment, the camera module includes: a stator including a first surface; a mover including a lens and a second surface facing the stator; and a guide member disposed between the first surface and the second surface, wherein the first surface and the second surface have curved surfaces corresponding to each other, wherein the mover includes a first substrate in which an image sensor is disposed, wherein the stator includes a second substrate, the second substrate is electrically connected to the image sensor and is disposed to be separated from the first substrate, wherein an interposer is included for elastically connecting the first and second substrates and transmitting signals output from the image sensor, and wherein at least a portion of the interposer can be disposed between the first and second substrates.

[0044] The stator may include a spacer member for placing the first and second substrates to be spaced apart from each other.

[0045] The spacer member may be a cover member disposed on the second substrate.

[0046] The camera module according to the present embodiment includes: a housing including a first surface; a holder including a lens and including a second surface facing the first surface and formed on an outer side surface; and a guide member disposed between the first surface and the second surface, wherein the first surface and the second surface have curved surfaces, wherein the curved surface of the second surface is a curved surface whose central portion is convex outwardly compared with the upper portion and the lower portion, and wherein the curved surface of the first surface may be a curved surface whose central portion is concave outwardly compared with the upper portion and the lower portion.

[0047] According to the present embodiment, the camera module includes: a stator including a first surface; a mover including a lens and including a second surface facing the first surface, and being driven obliquely relative to the stator with three different axes as references; and a guide member disposed between the first surface and the second surface, wherein the first surface and the second surface have curved surfaces, and wherein each of the curved surfaces of the first surface and the second surface can be a curved surface formed in the inclination direction of the mover.

[0048] According to the present embodiment, the camera module includes: an outer cover; a retaining member disposed within the outer cover; a coil frame disposed in the retaining member; a first substrate coupled to the retaining member; a lens disposed on the coil frame; an image sensor disposed on the first substrate; a first coil disposed on the coil frame; a magnet disposed on the retaining member; a second coil disposed in the outer cover; and a first ball disposed between the outer cover and the retaining member, wherein the outer cover includes a first surface, the first surface includes a curved surface, wherein the retaining member includes a second surface, the second surface includes a curved surface and faces the first surface of the outer cover, and wherein the first ball can be disposed between the first surface of the outer cover and the second surface of the retaining member.

[0049] The outer cover includes a groove formed on a first surface of the outer cover in a shape corresponding to a portion of the first ball, wherein a portion of the first ball is accommodated in the groove of the outer cover, and wherein the first ball is capable of moving along the curved surface of the retaining member.

[0050] The retaining member includes a groove formed on a second surface of the retaining member in a shape corresponding to a portion of the first ball, wherein a portion of the first ball is accommodated in the groove of the retaining member, and wherein the first ball can move along the curved surface of the outer cover.

[0051] The curvature of the curved surface of the housing may be at least partially equal to the curvature of the curved surface of the holder.

[0052] The curved surface of the holder may be formed such that a central portion is more convex than upper and lower portions.

[0053] The camera module may include a second substrate disposed below the first substrate; and an elastic member connecting the first and second substrates, wherein the cover may be coupled to the second substrate.

[0054] The elastic member may be formed so that the first substrate and the second substrate are spaced apart from each other in an initial state in which no current is applied to the first coil and the second coil.

[0055] The elastic member includes an inner portion coupled to the first substrate, an outer portion coupled to the second substrate, and a connection portion connecting the inner portion and the outer portion, wherein the connection portion has elasticity and may include a bent shape.

[0056] The elastic member may include a plurality of elastic portions spaced apart from each other and electrically connecting the first substrate and the second substrate, wherein the plurality of elastic portions may include at least 20 elastic portions.

[0057] The camera module may include a cover coupled to the second substrate, wherein the housing may be positioned inside the cover and coupled to the cover.

[0058] The outer cover may include a plurality of bodies spaced apart from each other, wherein each of the plurality of bodies may be fixed to the inner surface of the side plate of the cover by an adhesive.

[0059] The camera module may include a third substrate electrically connected to the second substrate, wherein the second coil may be disposed on the third substrate.

[0060] The third substrate includes a first surface facing the magnet and a second surface opposite to the first surface, wherein the second coil is placed on the first surface of the third substrate, and wherein a yoke made of a metal material may be placed on the second surface of the third substrate.

[0061] The third substrate may be coupled to the housing.

[0062] When current is applied to the first coil, the coil bobbin moves along the optical axis due to electromagnetic interaction between the first coil and the magnet, thereby varying the distance between the lens and the image sensor.

[0063] The second coil includes a first coil part to a third coil part, and current is applied separately to the first coil part to the third coil part, wherein the magnet includes a first magnet to a third magnet, wherein the first magnet has a first surface facing the first coil and a second surface disposed opposite to the first surface and facing the first coil part, wherein the second magnet includes a first surface facing the first coil and a second surface disposed opposite to the first surface of the second magnet and facing the second coil part, and wherein the third magnet can face the third coil part.

[0064] The second surface of each of the first and second magnets includes a first area and a second area, the second area is positioned below the first area and has a polarity different from the polarity of the first area, wherein the third magnet includes a first surface facing the third coil portion, wherein the first surface of the third magnet may include a first area and a second area, the second area is positioned on one side of the first area of ​​the third magnet and has a polarity different from the polarity of the first area of ​​the third magnet.

[0065] The first surface of each of the first and second magnets includes: a third region and a fourth region, the fourth region being positioned below the third region and having a polarity different from that of the third region, wherein the first coil can overlap with one of the third and fourth regions in a direction perpendicular to the optical axis.

[0066] When current is applied to the first coil portion, the retaining member rotates around a first axis perpendicular to the optical axis; when current is applied to the second coil portion, the retaining member rotates around the optical axis and a second axis perpendicular to the first axis; and when current is applied to the third coil portion, the retaining member can rotate around the optical axis.

[0067] When the holder rotates, the bobbin, the lens, and the image sensor may rotate integrally with the holder, thereby maintaining a distance between the lens and the image sensor.

[0068] A second ball may be included positioned between the bobbin and the retainer.

[0069] The holder may include a groove formed on an inner surface of the holder, the second ball being seated in the groove, wherein the groove of the holder may extend longer than a diameter of the second ball in the optical axis direction.

[0070] An elastic member connecting the coil former and the retainer may be included.

[0071] The camera module may include: a sensor cover disposed between the bobbin and the first substrate; and an optical filter disposed in the sensor cover.

[0072] The first rolling balls may include: eight rolling balls through which a first virtual plane perpendicular to the optical axis passes; and eight rolling balls through which a second virtual plane perpendicular to the optical axis and spaced apart from the first plane passes.

[0073] The first rolling balls may include four rolling balls, and a third virtual plane including the optical axis passes through the four rolling balls, wherein the four rolling balls may be symmetrical with respect to the optical axis.

[0074] The optical device according to the present embodiment may include: a main body; a camera module disposed in the main body; and a display disposed in the main body and outputting an image photographed by the camera module.

[0075] According to this embodiment, the camera module includes: a stator; a first mover disposed on the inner side of the stator; and a second mover disposed between the stator and the first mover, wherein the first mover is disposed to be movable in the optical axis direction relative to the second mover, wherein the second mover is disposed to be rotatable around an optical axis relative to the stator, a first axis perpendicular to the optical axis, and a second axis perpendicular to the optical axis and the first axis, wherein the stator includes a first surface, which includes a curved surface, wherein the second mover includes a second surface, which includes a curved surface and faces the first surface of the stator, and wherein a ball for guiding the movement of the second mover can be disposed between the first surface of the stator and the second surface of the second mover.

[0076] The first mover includes a coil frame and a lens connected to the coil frame, wherein the second mover includes a holder, a substrate connected to the holder, and an image sensor placed on the substrate, and wherein when the second mover rotates, the lens can rotate together with the image sensor.

[0077] The first mover includes a first coil; the second mover includes a magnet; the stator includes a second coil to a fourth coil, and current is applied separately to the second coil to the fourth coil; when current is applied to the first coil, the first mover moves in the optical axis direction relative to the second mover; when current is applied to the second coil, the second mover rotates around the optical axis relative to the stator; when current is applied to the third coil, the second mover rotates around the first axis relative to the stator; and when current is applied to the fourth coil, the second mover can rotate around the second axis relative to the stator.

[0078] Beneficial effects

[0079] Through this embodiment, a three-way image stabilization (OIS) function in yaw, pitch, and roll directions is achieved using a module tilting method in which the lens and the image sensor move together.

[0080] Furthermore, in the case of moving only one of the lens and the image sensor, the image quality deteriorates in the edge area of ​​the image sensor, but through the module tilting method, this embodiment has the advantage that the image quality does not deteriorate from the central area to the edge area of ​​the image sensor. BRIEF DESCRIPTION OF THE DRAWINGS

[0081] Figure 1 is a perspective view of a camera module according to this embodiment.

[0082] Figure 2 is a plan view of the camera module according to this embodiment.

[0083] Figure 3 is a side view of the camera module according to this embodiment.

[0084] Figure 4 It is along Figure 2 A cross-sectional stereogram taken along line aa in FIG.

[0085] Figure 5 It is along Figure 2 A cross-sectional stereogram taken along line bb in FIG.

[0086] Figure 6 It is along Figure 2 Cross-sectional view taken along line cc in FIG.

[0087] Figure 7 It is along Figure 2 A cross-sectional stereogram taken along the dd line in FIG.

[0088] Figure 8 is an enlarged cross-sectional view of a portion of the camera module according to the present embodiment.

[0089] Figure 9 is an exploded perspective view of the camera module according to this embodiment.

[0090] Figures 10 to 12 It is an exploded perspective view of a partial structure of the camera module according to this embodiment.

[0091] Figure 13 1 and 2 are views for explaining the arrangement structure and driving of coils and magnets of the camera module according to the present embodiment.

[0092] Figure 14is a perspective view of the optical device according to this embodiment.

[0093] Figure 15 is Figure 14 Block diagram of the optical device shown in . DETAILED DESCRIPTION

[0094] Hereinafter, preferred embodiments of the present invention will be described in detail with reference to the accompanying drawings.

[0095] However, the technical idea of ​​the present invention is not limited to certain embodiments to be described, but can be implemented in various forms, and within the scope of the technical idea of ​​the present invention, one or more of the constituent elements can be selectively combined or replaced between the embodiments.

[0096] In addition, the terms (including technical and scientific terms) used in the embodiments of the present invention can be interpreted as meanings that can be generally understood by those skilled in the art unless explicitly defined and described, and commonly used terms such as terms defined in dictionaries can be interpreted in consideration of the meaning of the relevant technical context.

[0097] In addition, the terms used in this specification are for describing the embodiments and are not intended to limit the present invention.

[0098] In this specification, the singular form may include the plural form unless otherwise stated in the phrase, and when described as "at least one (or more than one) of A and B and C", this may include one or more of all combinations that can be combined with A, B and C.

[0099] In addition, when describing the components of the embodiments of the present invention, terms such as first, second, A, B, (a) and (b) may be used. These terms are only intended to distinguish components from each other, and these terms do not limit the nature, order or sequence of the components.

[0100] Furthermore, when a component is described as being “connected,” “coupled,” or “interconnected” to another component, the component is not only directly connected, coupled, or interconnected to the other component, but may also include a situation where the component is “connected,” “coupled,” or “interconnected” due to another component between the other components.

[0101] In addition, when described as being formed or arranged "on (above)" or "under (below)" each member, "on (above)" or "under (below)" means that this includes not only a case where the two members are directly in contact, but also a case where one or more other members are formed or arranged between the two members. In addition, when expressed as "on (above)" or "under (below)", it can include not only a meaning based on the upward direction of one member, but also a meaning based on the downward direction of one member.

[0102] Descriptions such as “first, second, and third” used hereinafter may be described arbitrarily to distinguish components indicated by the same term from each other. For example, in order to distinguish two coils 120 and 230, one coil may be referred to as the first coil, and the other coil may be referred to as the second coil. In the following, the first coil 230 and the second coil 120 are described, but the coil corresponding to the reference numeral 230 may be referred to as the second coil, and the coil corresponding to the reference numeral 120 may be referred to as the first coil. This description can be applied by analogy to various terms such as “coil, magnet, ball, mover, groove” and the like. In particular, the “first, second, and third” may be described sequentially from the first construction in the claims.

[0103] The following uses the "optical axis (reference Figure 1 and 13 The “OA) direction” is defined as the optical axis direction of the image sensor and / or lens coupled to the lens driving device.

[0104] The "vertical direction" used hereinafter may be a direction parallel to the optical axis direction. The vertical direction may correspond to the "z-axis direction (refer to Figure 1 )". The "horizontal direction" used hereinafter may be a direction perpendicular to the vertical direction. That is, the horizontal direction may be a direction perpendicular to the optical axis. Accordingly, the horizontal direction may include an "x-axis direction" and a "y-axis direction" (refer to Figure 1 ).

[0105] The "autofocus function" used below is defined as a function that automatically focuses on a target by adjusting the distance to the image sensor by moving the lens in the optical axis direction according to the target's distance, thereby enabling the image sensor to obtain a clear image of the target. Meanwhile, "autofocus" can correspond to "AF (auto focus)" and can be used interchangeably with "autofocus."

[0106] The "hand-shake correction function" used below is defined as a function that moves the lens and / or image sensor to offset vibration (motion) generated in the image sensor by external forces. Meanwhile, "hand-shake correction" may correspond to "optical image stabilization (OIS)."

[0107] The term "yawing" used below may refer to the rotation of the Figure 1 ) is the movement in the yaw direction of rotation. The "pitch" used below can be the movement around the x-axis (refer to Figure 1 ) rotation in the pitch direction. The "rolling" used below can be the movement around the z-axis (refer to Figure 1 ) rotation in the roll direction. Alternatively, rotation about the y-axis may be defined as pitch, and rotation about the x-axis may be defined as yaw.

[0108] Hereinafter, the configuration of a camera module will be described with reference to the accompanying drawings.

[0109] Figure 1 is a perspective view of a camera module according to this embodiment; Figure 2 is a plan view of a camera module according to this embodiment; Figure 3 is a side view of the camera module according to this embodiment; Figure 4 It is along Figure 2 A sectional stereogram taken along line aa in FIG; Figure 5 It is along Figure 2 A cross-sectional perspective view taken along line bb in FIG; Figure 6 It is along Figure 2 A cross-sectional view taken along line cc in FIG. Figure 7 It is along Figure 2 A cross-sectional perspective view taken along line dd in FIG; Figure 8 is an enlarged cross-sectional view of a portion of the camera module according to the present embodiment; Figure 9 is an exploded perspective view of a camera module according to this embodiment; Figures 10 to 12 is an exploded perspective view of a partial structure of the camera module according to this embodiment; and Figure 13 1 and 2 are views for explaining the arrangement structure and driving of coils and magnets of the camera module according to the present embodiment.

[0110] The camera module may be a camera device. The camera module may include a lens driving device. The lens driving device may be a voice coil motor (VCM). The lens driving device may be a lens driving motor. The lens driving device may be a lens driving actuator. The lens driving device may include an AF module. The lens driving device may include an OIS module.

[0111] The camera module may include a stator 100. The stator 100 may be separated from the first mover 200. The stator 100 may be positioned below the first mover 200. The stator 100 may be positioned to surround an outer surface of the first mover 200. The stator 100 may be separated from the second mover 300. The stator 100 may be positioned below the second mover 300. When the first mover 200 and / or the second mover 300 move, the stator 100 may be a fixed component.

[0112] The stator 100 may include a curved surface. The stator 100 may include a first surface 113, which may include a curved surface. The curved surface of the first surface 113 may be a curved surface formed in the vertical direction. Alternatively, the curved surface of the first surface 113 may be a curved surface formed in the left-right direction or in the horizontal direction. The curved surface of the stator 100 may be the curved surface of the outer cover 110. The first ball bearing 400 may be placed on the curved surface of the stator 100.

[0113] The stator 100 may include a cover 110. The cover 110 may be referred to as an OIS holder, a second holder, an outer housing, or the like. The cover 110 may be coupled to the second substrate 500. In this case, the cover 110 may be coupled to the second substrate 500 directly or indirectly. That is, the cover 110 may be directly coupled to the second substrate 500 using an adhesive or the like. Alternatively, other structures may be interposed between the cover 110 and the second substrate 500. For example, the cover 110 may be coupled to a lid 130, and the lid 130 may be coupled to the second substrate 500. In this case, the cover 110 may not be directly coupled to the second substrate 500. The cover 110 may be placed on the second substrate 500. The cover 110 may be fixed to the second substrate 500. The cover 110 may move integrally with the second substrate 500. In addition, the outer cover 110 may be coupled or connected through the second substrate 500 and a substrate (eg, a third substrate 140 to be described below). The outer cover 110 may be disposed inside the cover 130. The outer cover 110 may be coupled to the cover 130.

[0114] The outer cover 110 may include a groove 111. The groove 111 may be formed on the first surface 113 of the outer cover 110 in a shape corresponding to a portion of the first ball 400. The groove 111 may include a plurality of grooves. The grooves 111 may be formed so that the number corresponds to the number of the first balls 400. The grooves 111 may accommodate a portion of the first balls 400 so that the first balls 400 can rotate. In addition, although not shown, a plurality of first balls 400 may be placed in one groove 111, and the groove 111 may be formed to extend in the up-down direction on the first surface 113. The groove formed by extending in the up-down direction may also have a curved surface extending in the up-down direction. In addition, the first surface 113 may include a curved surface formed in the up-down direction, and the first balls 400 may be placed on the curved surface formed in the up-down direction.

[0115] The outer cover 110 may include a body 112. The body 112 may include a plurality of bodies spaced apart from each other. Each of the plurality of bodies may be fixed to the inner surface of the side plate of the cover 130 or placed on the inner side thereof. Each of the plurality of bodies may be fixed to the inner surface of the side plate of the cover 130 by an adhesive. The adhesive may include a bonding agent and / or epoxy resin. In addition, the body 112 may be coupled or connected via the second substrate 500 and a substrate (e.g., a third substrate 140 to be described below). In addition, the plurality of bodies may be connected or coupled to one or more substrates (e.g., a third substrate 140 to be described below).

[0116] The outer cover 110 may include a curved surface. The outer cover 110 may include a first surface 113, the first surface including a curved surface. The curved surface of the outer cover 110 may protrude inward as it progresses from the central portion toward the upper and lower portions. The curved surface of the outer cover 110 may be formed on the inner surface of the outer cover 110. The curved surface of the outer cover 110 may be concave as it progresses from the central portion toward the upper and lower portions. The curved surface of the outer cover 110 may have a central portion that is more concave than the upper and lower portions. The curved surface of the outer cover 110 may be formed so that the central portion is more concave outward than the upper and lower portions. The curvature of the curved surface of the outer cover 110 may be at least partially the same as the curvature of the curved surface of the retaining member 310. Thus, even if the retaining member 310 tilts inside the outer cover 110, interference between the retaining member 310 and the outer cover 110 can be prevented. Alternatively, the curvature of the curved surface of the housing 110 may be smaller than the curvature of the curved surface of the holder 310. The curved surface of the housing 110 may include a plurality of curved surfaces.

[0117] The outer cover 110 may include a groove 114. The groove 114 may be an "adhesive groove" in which an adhesive is placed. The groove 114 may be formed in each of the plurality of bodies of the outer cover 110. Adhesive may be placed in the groove 114. The adhesive placed in the groove 114 may attach the outer cover 110 and the lid 130. The groove 114 may be formed in the upper surface of the outer cover 110.

[0118] The stator 100 may include a second coil 120. The second coil 120 may be an "OIS coil" for driving the OIS. The second coil 120 may be disposed in the stator 100. The second coil 120 may be disposed in the housing 110. The second coil 120 may be disposed on the third substrate 140. The second coil 120 may be disposed in the stator 100 or the housing 110 via the third substrate 140. The second coil 120 may be electrically connected to the second substrate 500 via the third substrate 140. When current is applied to the second coil 120, an electromagnetic field may be formed around the second coil 120. The second coil 120 may face the magnet 340. The second coil 120 may be opposite the magnet 340. The second coil 120 may electromagnetically interact with the magnet 340. In other words, the relative position of the first coil 120 and the magnet 340 may be adjusted by the electromagnetic force generated by the electromagnetic interaction between the first coil 120 and the magnet 340. The second coil 120 can push the magnet 340 out (repulsive force) or pull it in (attractive force). Furthermore, the second coil 120 can generate an electromagnetic force in a direction perpendicular to the direction in which the magnets 340 face each other. For example, the second coil 120 and the magnet 340 can tilt at least one or all of the first mover 200, the third mover, the housing 110, and the lens 220 in a direction perpendicular to the optical axis (e.g., the X-axis or Y-axis direction perpendicular to the optical axis (Z-axis)), or can generate a force that rotates about the X-axis or Y-axis.

[0119] The second coil 120 may include multiple coils. The second coil 120 may include multiple coils separated from each other. The second coil 120 may include multiple coils that are electrically separated. The second coil 120 may include multiple coils to which currents are applied independently. The second coil 120 may include: a first coil portion 121 for moving the holder 310 on which the magnet 340 is placed in a first direction; a second coil portion 122 for moving the holder 310 in a second direction; and a third coil portion 123 for moving the holder 310 in a third direction. The second coil 120 may include at least three coils; for example, the second coil 120 may include eight coils.

[0120] The second coil 120 may include first to third coil sections 121, 122, and 123, to which current is applied individually. The first coil section 121 may be a "first OIS coil." The second coil section 122 may be a "second OIS coil." The third coil section 123 may be a "third OIS coil." The first coil section 121 may be a "pitch coil" that drives the retaining element 310 in the pitch direction. The second coil section 122 may be a "yaw coil" that drives the retaining element 310 in the yaw direction. The third coil section 123 may be a "roll coil" that drives the retaining element 310 in the roll direction. The first to third coil sections 121, 122, and 134 may be referred to as the second to fourth coils. As a modified embodiment, the first coil section 121 may be a yaw coil, and the second coil section 122 may be a pitch coil.

[0121] When current is applied to the first coil portion 121, the holder 310 can rotate around a first axis perpendicular to the optical axis. When current is applied to the second coil portion 122, the holder 310 can rotate around the optical axis and a second axis perpendicular to the first axis. When current is applied to the third coil portion 123, the holder 310 can rotate around the optical axis. In this case, the rotation can be tilted. Alternatively, the rotation can be a pivoting motion. The first axis is the x-axis, the second axis is the y-axis, and the optical axis can be the z-axis. However, the first axis is the y-axis and the second axis can be the x-axis.

[0122] When the holder 310 rotates, the bobbin 210, lens 220, and image sensor 330 rotate integrally with the holder 310, thereby maintaining the distance between the lens 220 and the image sensor 330. That is, the OIS driving method according to the module tilt method described in this embodiment can be distinguished from the lens shift method in which the image sensor is fixed and only the lens moves, and the image sensor shift method in which the lens is fixed and only the image sensor moves. As described in this embodiment, the module tilt method in which the lens and image sensor move integrally can solve the problem of image quality degradation in the edge area of ​​the image sensor, which is a problem with the method in which the lens and image sensor move separately.

[0123] The stator 100 may include second to fourth coils, to which current is applied individually. In this case, the second to fourth coils may comprise the first to third coil sections 121, 122, and 123. In this embodiment, when current is applied to the first coil 230, the first mover 200 can move relative to the second mover 300 in the direction of the optical axis. When current is applied to the second coil, the second mover 300 can rotate relative to the stator 100 about the optical axis. When current is applied to the third coil, the second mover 300 can rotate relative to the stator 100 about the first axis. When current is applied to the fourth coil, the second mover 300 can rotate relative to the stator 100 about the second axis. Simultaneously, when the second mover 300 moves, the first mover 200 can also move. That is, the image sensor 330 of the second mover 300 and the lens 220 of the first mover 200 can move together.

[0124] The stator 100 may include a cover 130. The cover 130 may be coupled to the second substrate 500. The cover 130 may include a "cover can." The cover 130 may be positioned to surround the outer cover 110, the retaining member 310, and the coil bobbin 210. The cover 130 may be coupled to the outer cover 110. The cover 130 may form the appearance of the camera module. The cover 130 may have a hexahedral shape with an open lower surface. The cover 130 may be made of a non-magnetic material. The cover 130 may be formed of metal. The cover 130 may be formed of a metal plate. The cover 130 may be connected to a ground portion of the second substrate 500. Thus, the cover 130 may be grounded. The cover 130 may block electromagnetic interference (EMI). In this case, the cover 130 may be referred to as an "EMI shielding can."

[0125] The cover 130 may include an upper plate and side plates. However, in some embodiments, the upper plate may be omitted. The cover 130 may include an upper plate having a hole and side plates extending downward from the outer periphery or edge of the upper plate. The lower ends of the side plates of the cover 130 may be placed on the second substrate 500. The inner surfaces of the side plates of the cover 130 may be fixed to the outer cover 110 using an adhesive.

[0126] The side panels of the cover 130 may include a plurality of side panels. The plurality of side panels may include first to fourth side panels. The side panels of the cover 130 may include a first side panel and a second side panel disposed opposite each other, and a third side panel and a fourth side panel disposed on opposite sides between the first and second side panels. The cover 130 may include a groove 131. The groove 131 may be formed at the lower end of the side panel.

[0127] The stator 100 may include a third substrate 140. The third substrate 140 may be a "second coil substrate." The third substrate 140 may be a printed circuit board (PCB) or a flexible printed circuit board (FPCB). The third substrate 140 may be coupled to the cover 130. The third substrate 140 may be coupled to the second substrate 500. The third substrate 140 may be connected to the second substrate 500. The third substrate 140 may be electrically connected to the second substrate 500. The third substrate 140 may be coupled to the outer cover 110. The second coil 120 may be disposed in the third substrate 140. The yoke 150 may be disposed in the third substrate 140.

[0128] The third substrate 140 may include a first surface facing the magnet 340 and a second surface opposite the first surface. The second coil 120 may be disposed on the first surface of the third substrate 140. The yoke 150, made of a metal material, may be disposed on the second surface of the third substrate 140. That is, the second coil 120 and the yoke 150 may be disposed opposite each other with the third substrate 140 interposed therebetween.

[0129] The stator 100 may include a yoke 150. The yoke 150 may be disposed within the third substrate 140. The yoke 150 may be disposed on the second surface of the third substrate 140. The yoke 150 may be formed of a metal material. An attractive force may act between the yoke 150 and the magnet 340. In other words, a force may be generated in the magnet 340 that causes it to move toward the yoke 150. Thus, when no current is applied to the second coil 120, the magnet 340 may be positioned at its initial position. In other words, if the magnet 340 is not in its correct position after an external force is applied or current is applied to the second coil 120, or when the current supply is stopped, the magnet 340 may be moved to its initial position by the attractive force between the yoke 150 and the magnet 340. At this time, the retaining member 310 may move integrally with the magnet 340. Furthermore, the first mover 200 may also move integrally with the magnet 340 and the retaining member 310.

[0130] The camera module may include a first mover 200. The first mover 200 may be positioned inside the stator 100. The first mover 200 may be positioned in a hole of the stator 100. The first mover 200 may be accommodated in the stator 100. The first mover 200 may be positioned inside the second mover 300. The first mover 200 may be separated from the stator 100. The first mover 200 may be separated from the second mover 300. The first mover 200 may be movably positioned relative to the second mover 300 in the optical axis direction. When moving in the optical axis direction, the first mover 200 may move separately from the second mover 300. However, in the case of movement in a direction other than the optical axis direction, the first mover 200 and the second mover 300 may move integrally. Alternatively, as a modified embodiment, the first mover 200 may move integrally or separately from the second mover 300 in a specific direction.

[0131] The first mover 200 may include a bobbin 210. The bobbin 210 may be placed inside the holder 310. The bobbin 210 may be placed inside the cover 130. The bobbin 210 may be coupled to the lens 220. The bobbin 210 may be placed in a hole of the holder 310. The bobbin 210 may be movably coupled to the holder 310. The bobbin 210 may be movable relative to the holder 310 in the optical axis direction. The lens 220 may be coupled to the bobbin 210. The bobbin 210 and the lens 220 may be coupled by screw connection and / or adhesive. The first coil 230 may be coupled to the bobbin 210.

[0132] The first mover 200 may include a lens 220. The lens 220 may be placed in the coil frame 210. The lens 220 may be coupled to the coil frame 210. The lens 220 may include a plurality of lenses. The lens 220 may be placed at a position corresponding to the image sensor 330. The lens 220 may be placed inside a lens barrel. The lens barrel may be placed between the lens 220 and the coil frame 210. In more detail, the plurality of lenses 220 may be coupled to the lens barrel, and the lens barrel may be coupled to the coil frame 210. The lens 220 may be coupled to the coil frame 210 by screw connection and / or adhesive. The lens 220 may move integrally with the coil frame 210.

[0133] In this embodiment, when the second mover 300 rotates, the lens 220 can rotate together with the image sensor 330. That is, this embodiment can perform OIS driving using a module tilt method. However, during AF driving, only the lens 220 is moved, while the image sensor 330 is fixed, so that the distance between the image sensor 330 and the lens 220 can be changed.

[0134] The first mover 200 may include a first coil 230. The first coil 230 may be an "AF coil" for AF driving. The first coil 230 may be disposed in the coil bobbin 210. The first coil 230 may be disposed between the retaining member 310 and the coil bobbin 210. The first coil 230 may be disposed between the coil bobbin 210 and the cover 130. The first coil 230 may be wound along the outer surface of the coil bobbin 210. The first coil 230 may be electrically connected to the first substrate 320. The first coil 230 may be electrically connected to the second substrate 500. The first coil 230 may be electrically connected to the third substrate 140. When current is applied to the first coil 230, an electromagnetic field may be generated around the first coil 230. The first coil 230 may face the magnet 340. The first coil 230 may be opposite the magnet 340. The electromagnetic force generated by the electromagnetic interaction between the first coil 230 and the magnet 340 can be used to adjust the relative position of the first coil 230 and the magnet 340. Specifically, the first coil 230 can push the magnet 340 out (repulsive force) or pull it in (attractive force). Furthermore, the first coil 230 can generate an electromagnetic force perpendicular to the direction in which the magnets 340 face each other (e.g., the optical axis (Z-axis)).

[0135] The first coil 230 may be formed as a single coil. Alternatively, as a modified embodiment, the first coil 230 may include a plurality of coils. When current is applied to the first coil 230, the electromagnetic interaction between the first coil 230 and the magnet 340 causes the coil bobbin 210 to move along the optical axis, thereby changing the distance between the lens 220 and the image sensor 330.

[0136] The camera module may include a second mover 300. The second mover 300 may be disposed between the stator 100 and the first mover 200. The second mover 300 may be disposed relative to the stator 100 so as to be rotatable about an optical axis, a first axis perpendicular to the optical axis, and a second axis perpendicular to the optical axis and the first axis.

[0137] The second mover 300 may include a curved surface. The second mover 300 may include a curved surface and a second surface 311 facing the first surface of the stator 100. The curved surface of the second mover 300 may be the curved surface of the retainer 310. The first ball bearing 400 may be placed on the curved surface of the second mover 300.

[0138] The second mover 300 may include a retainer 310. The retainer 310 may be disposed inside the outer cover 110. The retainer 310 may be disposed outside the coil bobbin 210. The retainer 310 may be disposed between the coil bobbin 210 and the outer cover 110. The retainer 310 may be disposed on the first substrate 320. The retainer 310 may be formed of an insulator.

[0139] The retainer 310 may include a second surface 311. The second surface 311 may include a curved surface. The second surface 311 may face the first surface 113 of the housing 110. The curved surface of the retainer 310 may be formed to correspond to the curved surface of the first surface 113 of the housing 110. The curved surface of the retainer 310 may be formed so that the central portion is more convex than the upper and lower portions. The curved surface of the retainer 310 may be formed so that the central portion is more convex outward than the upper and lower portions. The curved surface of the retainer 310 may become more concave as it progresses from the central portion toward the upper and lower portions. The curved surface of the retainer 310 may protrude more outward as it progresses from the central portion toward the upper and lower portions. The curved surface may include multiple curved surfaces.

[0140] In a modified embodiment, the retaining member 310 may include a groove. In this case, the groove may be a "ball receiving groove" for receiving the first rolling ball 400. The groove may be formed on the second surface 311 of the retaining member 310 in a shape corresponding to a portion of the first rolling ball 400. The groove may include a plurality of grooves. The grooves may be formed to correspond to the number of the first rolling balls 400. The groove may receive a portion of the first rolling ball 400, thereby enabling the first rolling ball 400 to rotate.

[0141] In the first embodiment, when the recess 111 for seating the first rolling ball 400 is formed in the housing 110, the recess may not be formed in the holder 310. In contrast, in the second embodiment, when the recess for seating the first rolling ball 400 is formed in the holder 310, the recess may not be formed in the housing 110. When the recess for seating the first rolling ball 400 is formed in both the housing 110 and the holder 310, tilting movement of the holder 310 can be restricted.

[0142] The holder 310 may include a groove 312. The groove 312 may be a "magnet receiving groove" for receiving the magnet 340. The groove 312 may be formed on an outer peripheral surface of the holder 310. The magnet 340 may be placed in the groove 312. The groove 312 may have a shape corresponding to the shape of at least a portion of the magnet 340.

[0143] The retaining member 310 may include a groove 313. The groove 313 may be a "ball receiving groove" for receiving the second ball 700. The groove 313 may extend in the optical axis direction longer than the diameter of the second ball 700. Thus, the second ball 700 can move along the groove 313 in the optical axis direction. In other words, the groove 313 can guide the movement of the coil bobbin 210 in the optical axis direction by contacting the second ball 700.

[0144] The second mover 300 may include a first substrate 320. The first substrate 320 may be an "image sensor substrate" in which the image sensor 330 is disposed. The first substrate 320 may be a printed circuit board (PCB) or a flexible printed circuit board (FPCB). The first substrate 320 may be coupled to the holder 310. The first substrate 320 may be coupled directly or indirectly to the holder 310.

[0145] The second mover 300 may include an image sensor 330. The image sensor 330 may be disposed in the first substrate 320. The image sensor 330 may have a configuration in which light passing through the lens 220 and the filter is incident to form an image. The image sensor 330 may be mounted on the first substrate 320. The image sensor 330 may be electrically connected to the first substrate 320. For example, the image sensor 330 may be coupled to the first substrate 320 via surface mount technology (SMT). The image sensor 330 may be disposed so that the lens 220 and the optical axis coincide with each other. That is, the optical axis of the image sensor 330 and the optical axis of the lens 220 may be aligned. The image sensor 330 may convert light irradiated onto the effective image area of ​​the image sensor 330 into an electrical signal. The image sensor 330 may be any one of a charge coupled device (CCD), a metal oxide semiconductor (MOS), a CPD, and a CID.

[0146] The second mover 300 may include a magnet 340. The magnet 340 may be disposed in the holder 310. The magnet 340 may be disposed on the outer peripheral surface of the holder 310. The magnet 340 may face the first coil 230 and the second coil 120. The magnet 340 may electromagnetically interact with the first coil 230 and the second coil 120. When current is applied to the first coil 230, the magnet 340 may move the first coil 230. When current is applied to the second coil 120, the magnet 340 may move. The magnet 340 may be a flat magnet having a flat plate shape.

[0147] The magnet 340 may include a plurality of magnets. The magnet 340 may include a total of eight magnets. The magnet 340 may include first to third magnets 341, 342, and 343. The magnet 340 may include a "common magnet" commonly used for AF driving and OIS driving, and an "OIS magnet" used for OIS driving. Furthermore, as a modified embodiment, a magnet used only for AF driving may be provided.

[0148] The first magnet 341 may include a first surface facing the first coil 230 and a second surface located opposite the first surface and facing the first coil portion 121. The second magnet 342 may include a first surface facing the first coil 230 and a second surface located opposite the first surface of the second magnet 342 and facing the second coil portion 122. The third magnet 343 may face the third coil portion 123. The third magnet 343 may not participate in electromagnetic interaction with the first coil 230. However, in a modified embodiment, the third magnet 343 may face the first coil 230 and electromagnetically interact with it.

[0149] The second surface of each of the first and second magnets 341 and 342 may include a first region and a second region, the second region being positioned below the first region and having a polarity different from that of the first region. Here, "below" may mean positioned below in the optical axis direction. The first region may have an N pole and the second region may have an S pole. Conversely, the first region may have an S pole and the second region may have an N pole.

[0150] The third magnet 343 may include a first surface facing the third coil portion 123. The first surface of the third magnet 343 may include a first region and a second region, wherein the second region is placed on one side of the first region of the third magnet 343 and has a polarity different from that of the first region of the third magnet 343. In this case, being placed on "one side" may mean being placed adjacent to the side on the left or right side in a direction perpendicular to the optical axis. The first region may be an N pole and the second region may be an S pole. Conversely, the first region may be an S pole and the second region may be an N pole. The third magnet 343 may be a two-pole magnetized single magnet.

[0151] The first surface of each of the first magnet 341 and the second magnet 342 may include a third region and a fourth region, the fourth region being positioned below the third region and having a polarity different from that of the third region. The third region may be an N-pole and the fourth region may be an S-pole. Conversely, the third region may be an S-pole and the fourth region may be an N-pole. Each of the first magnet 341 and the second magnet 342 may be a quadrupole magnet in which magnets having two polarities overlap. Each of the first magnet 341 and the second magnet 342 may include two regions having an S-polarity and two regions having an N-polarity.

[0152] The first coil 230 may overlap with any one of the third and fourth regions of the first and second magnets 341 and 342 in a direction perpendicular to the optical axis. Alternatively, the first coil 230 may overlap with only one of the third and fourth regions of the first and second magnets 341 and 342 in a direction perpendicular to the optical axis. That is, the first coil 230 may not overlap with the other of the third and fourth regions of the first and second magnets 341 and 342 in a direction perpendicular to the optical axis. In this case, an initial state in which no current is applied to the first coil 230 has been described. In some embodiments, when current is applied to the first coil 230, the first coil 230 may overlap with all of the third and fourth regions. However, in some embodiments, even in a driven state in which current is applied to the first coil 230, the first coil 230 may overlap with only one of the third and fourth regions. For example, the first coil 230 may overlap with the third region of each of the first and second magnets 341 and 342 in a direction perpendicular to the optical axis.

[0153] The first magnet 341 may include two magnets symmetrical with respect to the optical axis. The second magnet 342 may include two magnets symmetrical with respect to the optical axis. The third magnet 343 may include four magnets. The magnet 340 may include a total of eight magnets.

[0154] The second mover 300 may include a sensor cover 350. The sensor cover 350 may be disposed between the coil bobbin 210 and the first substrate 320. The sensor cover 350 may include a hole passing through the sensor cover 350 in the optical axis direction.

[0155] The second mover 300 may include a filter (not shown). The filter may be placed in the sensor housing 350. The filter may be used to prevent light having a specific frequency band from passing through the lens 220 from being incident on the image sensor 330. The filter may be placed parallel to the x-plane. The filter may be placed between the lens 220 and the image sensor 330. The filter may include an infrared filter. The infrared filter may prevent light in the infrared region from being incident on the image sensor 330.

[0156] The camera module may include a first rolling ball 400. The first rolling ball 400 may be positioned between the first surface 113 of the stator 100 and the second surface 311 of the second mover 300. The first rolling ball 400 may guide the movement of the second mover 300. The first rolling ball 400 may be positioned between the housing 110 and the retaining member 310. The first rolling ball 400 may be positioned between the first surface 113 of the housing 110 and the second surface 3110 of the retaining member 310. A portion of the first rolling ball 400 may be accommodated in the groove 111. In this case, the first rolling ball 400 may move along the curved surface of the retaining member 310. In a modified embodiment, a portion of the first rolling ball 400 may be accommodated in the groove of the retaining member 310. In this case, the first rolling ball 400 may move along the curved surface of the housing 110. The first rolling ball 400 may serve as a guide component.

[0157] The first rolling ball 400 may include a plurality of rolling balls. The first rolling ball 400 may include 16 rolling balls. The first rolling ball 400 may include a total of 16 rolling balls. The first rolling ball 400 may include eight rolling balls through a first imaginary plane perpendicular to the optical axis and eight rolling balls through a second imaginary plane perpendicular to the optical axis and spaced apart from the first plane. In this case, the first plane may be parallel to the second plane and may be positioned below the second plane. The first rolling ball 400 may include eight rolling balls positioned above the retaining member 310 and the outer cover 110, and eight rolling balls positioned below the retaining member 310 and the outer cover 110.

[0158] The first rolling ball 400 may include four rolling balls, with a third virtual plane including the optical axis passing through the four rolling balls. The four rolling balls may be symmetrical with respect to the optical axis. Thus, there may be four virtual third planes including the optical axis. That is, while the eight rolling balls are placed on a virtual plane perpendicular to the optical axis, the four rolling balls may be placed on a virtual plane including the optical axis.

[0159] The camera module may include a second substrate 500. The second substrate 500 may be a "main substrate" electrically connected to the outside. In this case, the outside may be a power supply and / or control unit for the optical device. The second substrate 500 may be placed below the first substrate 320. The second substrate 500 may be a printed circuit board (PCB) or a flexible printed circuit board (FPCB). The second substrate 500 may be a rigid printed circuit board (RPCB). The second substrate 500 may be a rigid-flexible circuit board (RFPCB) in which the RPCB and the FPCB are connected. The second substrate 500 may include a connector for connecting to an external component.

[0160] The camera module may include an elastic member 600. The elastic member 600 may be an "intermediary member." The elastic member 600 may include a leaf spring. The elastic member 600 may be at least partially elastic. The elastic member 600 may be formed of metal. The elastic member 600 may connect the first substrate 320 and the second substrate 500. The elastic member 600 may be formed so that, in an initial state where no current is applied to the first coil 230 and the second coil 120, the first substrate 320 and the second substrate 500 are separated from each other. The elastic member 600 may be formed so that the first substrate 320 and the second substrate 500 are positioned at different heights. The first substrate 320 and the second substrate 500 may be positioned at different levels. However, the separation between the first substrate 320 and the second substrate 500 may be caused by the coupling or arrangement structure between the outer cover 110 and the retaining member 310 fixed to the lid 130.

[0161] The elastic member 600 may include a plurality of elastic portions. The elastic portions may be elastic units. The plurality of elastic portions may be separated from each other. The plurality of elastic portions may be electrically isolated. The plurality of elastic portions may electrically connect the first substrate 320 and the second substrate 500. The plurality of elastic portions may include at least 20 elastic portions. The plurality of elastic portions may include 24 or more elastic portions.

[0162] The elastic member 600 may include an inner portion 610 coupled to the first substrate 320, an outer portion 620 coupled to the second substrate 500, and a connecting portion 630 for connecting the inner portion 610 and the outer portion 620. The elastic member 600 may also include an elastic portion formed only of the inner portion 610 and an elastic portion formed only of the outer portion 620.

[0163] The connecting portion 630 may be elastic. The connecting portion 630 may include a curved shape. The connecting portion 630 may include a shape that is bent at least twice. The connecting portion 630 may include a shape that is bent three or more times. The connecting portion 630 may include a curved shape. The connecting portion 630 may include a biased shape. The connecting portion 630 may include a bent shape.

[0164] The camera module may include a second rolling ball 700. The second rolling ball 700 may be positioned between the bobbin 210 and the retaining member 310. The second rolling ball 700 may guide the AF drive of the bobbin 210. In a modified embodiment, the second rolling ball 700 may be formed as a cylindrical guide member. The second rolling ball 700 may be rotatably positioned in the bobbin 210. The second rolling ball 700 may move along the groove 313 of the retaining member 310. The second rolling ball 700 may serve as a guide member.

[0165] As a modified embodiment, the camera module may include an elastic member (not shown). The elastic member may be an "AF elastic member" that supports AF driving of the coil bobbin 210. The elastic member may connect the coil bobbin 210 and the retaining member 310. The elastic member may include an inner portion coupled to the coil bobbin 210, an outer portion coupled to the retaining member 310, and a connecting portion connecting the inner and outer portions.

[0166] The holder 310 may be driven to tilt relative to the housing 110 .

[0167] The upper portion of the second surface of the holder 310 is the uppermost portion that the guide portion contacts when the holder 310 is tilted about a first axis perpendicular to the optical axis of the lens, and the lower portion of the second surface may be the lowermost portion that the guide portion contacts when the holder 310 is tilted about the first axis. The outer periphery of the holder 310 may have a circular shape.

[0168] The thickness of the outer periphery of the retaining member 310 may be formed such that the central portion is thicker than the upper portion or the lower portion. The stator 100 may be a portion that is not moved by the driving unit (coil, magnet). The mover may be a portion that is driven or moved by the driving unit (coil, magnet). The stator 100 may include a spacing member for placing the first substrate 320 and the second substrate 500 in a spaced relationship. The spacing member may be a cover member. The cover member may be a cover 130.

[0169] Hereinafter, an optical device according to the present embodiment will be described with reference to the accompanying drawings.

[0170] Figure 14 is a perspective view of the optical device according to this embodiment; and Figure 15 is Figure 14 Block diagram of the optical device shown in FIG.

[0171] The optical device 10B may be any one of a mobile phone, a cell phone, a smartphone, a portable smart device, a digital camera, a laptop computer, a digital broadcast terminal, a personal digital assistant (PDA), a portable multimedia player (PMP), and a navigation device. However, the type of the optical device 10B is not limited thereto, and any device for capturing an image or a picture may be included in the optical device 10B.

[0172] The optical device 10B may include a main body 850. The main body 850 may have a bar shape. Alternatively, the main body 850 may have various structures, such as a sliding type, a folding type, a swing type, and a rotating type, in which two or more sub-bodies are coupled so as to be able to move relative to each other. The main body 850 may include a shell (shell, cover, and lid) that forms an appearance. For example, the main body 850 may include a front shell 851 and a rear shell 852. Various electronic components of the optical device 10B may be embedded in the space formed between the front shell 851 and the rear shell 852. The display module 753 may be placed on one surface of the main body 850. The camera 721 may be placed on one or more surfaces of one surface of the main body 850 and another surface provided on the opposite side of the one surface of the main body 850.

[0173] The optical device 10B may include a wireless communication unit 710. The wireless communication unit 710 may include one or more modules that enable wireless communication between the optical device 10B and a wireless communication system or between the optical device 10B and a network in which the optical device 10B is located. For example, the wireless communication unit 710 may include any one or more of a broadcast receiving module 711, a mobile communication module 712, a wireless Internet module 713, a near field communication module 714, and a location information module 715.

[0174] The optical device 10B may include an A / V input unit 720. The A / V input unit 720 is used to input an audio signal or a video signal and may include any one or more of a camera 721 and a microphone 722. In this case, the camera 721 may include the camera module according to this embodiment.

[0175] The optical device 10B may include a sensing unit 740. The sensing unit 740 may generate a sensing signal for controlling the operation of the optical device 10B by detecting the current state of the optical device 10B (such as the open / closed state of the optical device 10B, the position of the optical device 10B, the presence or absence of user contact, the orientation of the optical device 10B, the acceleration / deceleration of the optical device 10B, etc.). For example, when the optical device 10B is in the form of a sliding phone, it may sense whether the sliding phone is open or closed. Furthermore, the sensing unit 740 may be responsible for sensing functions related to whether the power supply unit 790 is supplied with power, whether the interface unit 770 is connected to an external device, and the like.

[0176] The optical device 10B may include an input / output unit 750. The input / output unit 750 may be configured to generate input or output related to visual, auditory, or tactile sensing. The input / output unit 750 may generate input data for controlling the operation of the optical device 10B and may output information processed by the optical device 10B.

[0177] The input / output unit 750 may include any one or more of a keyboard unit 730, a display 751, a sound output module 752, and a touch screen panel 753. The keyboard unit 730 may generate input data in response to keyboard input. The display 751 may output an image captured by the camera 721. The display 751 may include a plurality of pixels whose colors change according to electrical signals. For example, the display 751 may include at least one of a liquid crystal display, a thin film transistor liquid crystal display, an organic light emitting diode, a flexible display, and a three-dimensional (3D) display. The sound output module 752 outputs audio data received from the wireless communication unit 710 in a call receiving mode, a call mode, a recording mode, a voice recognition mode, a broadcast receiving mode, etc., or may output audio data stored in the memory unit 760. The touch screen panel 753 may convert a change in capacitance generated by a user touching a specific area of ​​the touch screen into an electrical input signal.

[0178] The optical device 10B may include a memory unit 760. A program for processing and controlling the control unit 780 may be stored in the memory unit 760. In addition, the memory unit 760 may store any one or more of input / output data, such as a phonebook, messages, audio, still images, photos, and videos. The memory unit 760 may also store images captured by the camera 721, such as photos or videos.

[0179] The optical device 10B may include an interface unit 770. The interface unit 770 functions as a path for connecting to an external device connected to the optical device 10B. The interface unit 770 may receive data from an external device, receive power, and transmit it to each component inside the optical device 10B, or transmit data within the optical device 10B to an external device. The interface unit 770 may include any one or more of a wired / wireless headphone port, an external charger port, a wired / wireless data port, a memory card port, a port for a connection device equipped with an identification module, an audio input / output (I / O) port, a video input / output (I / O) port, and a headphone port.

[0180] The optical device 10B may include a control unit 780. The control unit 780 may control the overall operation of the optical device 10B. The control unit 780 may perform related control and processing for voice calls, data communications, video calls, etc. The control unit 780 may include a multimedia module 781 for playing multimedia. The multimedia module 781 may be provided inside the control unit 180 or may be provided separately from the control unit 780. The control unit 780 may perform pattern recognition processing capable of recognizing handwriting input or drawing input performed on the touch screen as characters and images, respectively.

[0181] The optical device 10B may include a power supply unit 790. The power supply unit 790 receives external power or internal power under the control of the control unit 780 and may supply power required for the operation of each component.

[0182] While the embodiments of the present invention have been described above with reference to the accompanying drawings, it will be appreciated by those skilled in the art that the present invention can be implemented in other specific forms without changing the technical spirit or essential features. Therefore, it should be understood that the embodiments described above are illustrative and non-restrictive in all respects.

Claims

1. A camera module comprising: a second substrate; a housing disposed on the second substrate and comprising a first surface; a holder including a lens and including a second surface facing the first surface and formed on an outer side surface of the holder; a first substrate coupled to the holder; an image sensor disposed on the first substrate; a guide member disposed between the first surface and the second surface; and an elastic component connecting the first substrate and the second substrate, wherein each of the first surface and the second surface has a curved surface, wherein the curved surface of the second surface is a curved surface in which a central portion is more convex than an upper portion and a lower portion, wherein the curved surface of the first surface is a curved surface in which a central portion is recessed relative to an upper portion and a lower portion, The elastic component includes a plurality of elastic parts that are separated from each other and electrically connect the first substrate and the second substrate. wherein each of the plurality of elastic portions includes an inner portion coupled to the first substrate, an outer portion coupled to the second substrate, and a connecting portion connecting the inner portion and the outer portion; and Wherein, the connecting portion is elastic and includes a bent shape.

2. The camera module according to claim 1, wherein The holder is driven obliquely relative to the housing, wherein the upper portion of the second surface is an uppermost portion contacted by the guide member when the holder is tilted about a first axis perpendicular to the optical axis of the lens; and The lower portion of the second surface is a lowermost portion contacted by the guide member when the retainer is tilted about the first axis.

3. The camera module according to claim 1, wherein The outer periphery of the retainer has a circular shape, and The thickness of the outer periphery of the retainer is formed such that a central portion is thicker than an upper portion or a lower portion.

4. The camera module according to claim 1, wherein The first surface includes a groove in which the guide member is positioned.

5. The camera module according to claim 4, wherein: The guide member is fixed to the groove.

6. The camera module according to claim 1, wherein A curvature of the curved surface of the first surface is the same as a curvature of the curved surface of the second surface.

7. The camera module according to claim 1, wherein: A curvature of the curved surface of the first surface and a curvature of the curved surface of the second surface are different from each other.

8. The camera module according to claim 1, wherein The guide member includes a first ball and a second ball, and The first rolling ball and the second rolling ball are disposed at mutually symmetrical positions relative to the central portion of the second surface.

9. The camera module according to claim 1, comprising: a coil former placed in the holder; a first coil placed on the coil former; a magnet disposed on the retaining member; and A second coil is positioned on the housing.

10. The camera module according to claim 1, wherein The elastic member is an intermediary configured to transmit a signal output from the image sensor.

11. The camera module according to claim 1, wherein The bent shape of the connection portion of the elastic member is a shape bent three or more times.

12. The camera module according to claim 9, wherein: The elastic member is formed so that the first substrate and the second substrate are spaced apart from each other in an initial state in which no current is applied to the first coil and the second coil. 13 . The camera module according to claim 9 , comprising an AF elastic member connecting the bobbin and the holder.

14. The camera module according to claim 1, wherein The plurality of elastic portions includes at least 20 elastic portions.

15. The camera module of claim 1, comprising a cover coupled to the second substrate, wherein: The housing is positioned within the cover and coupled to the cover.

16. The camera module according to claim 15, wherein: The outer cover includes a plurality of bodies spaced apart from each other, wherein each of the plurality of bodies is fixed to an inner surface of a side plate of the cover by an adhesive.

17. The camera module of claim 9, comprising a third substrate electrically connected to the second substrate, and wherein: The second coil is placed on the third substrate.

18. A camera module comprising: a stator comprising a first surface; a mover comprising a lens and a second surface facing the stator, and a guide member disposed between the first surface and the second surface, wherein each of the first surface and the second surface has a curved surface, The mover includes a first substrate, and the image sensor is placed in the first substrate. wherein the stator includes a second substrate electrically connected to the image sensor and disposed to be spaced apart from the first substrate; The camera module includes an intermediary that elastically connects the first substrate and the second substrate and transmits a signal output from the image sensor. Wherein, at least a portion of the interposer is placed between the first substrate and the second substrate, The interposer includes a plurality of elastic portions that are separated from each other and electrically connect the first substrate and the second substrate. wherein each of the plurality of elastic portions includes an inner portion coupled to the first substrate, an outer portion coupled to the second substrate, and a connecting portion connecting the inner portion and the outer portion; and Wherein, the connecting portion is elastic and includes a bent shape.

19. A camera module comprising: a stator comprising a first surface; a mover including a lens and a second surface facing the first surface, and being tiltably driven relative to the stator with reference to three different axes; and a guide member disposed between the first surface and the second surface, wherein each of the first surface and the second surface has a curved surface, wherein the curved surface of each of the first surface and the second surface is a curved surface formed in a direction in which the mover is tilted, The mover includes a first substrate, and an image sensor is placed on the first substrate. The stator includes a second substrate, which is separated from the first substrate. wherein the elastic component connects the first substrate and the second substrate, The elastic component includes a plurality of elastic parts that are separated from each other and electrically connect the first substrate and the second substrate. wherein each of the plurality of elastic portions includes an inner portion coupled to the first substrate, an outer portion coupled to the second substrate, and a connecting portion connecting the inner portion and the outer portion; and Wherein, the connecting portion is elastic and includes a bent shape.

20. An optical device comprising: main body; A camera module according to any one of claims 1 to 19, disposed on the main body; A display is disposed on the main body and configured to output an image captured by the camera module.

Images