Lens driving device, camera device, and optical instrument

Abstract

A first embodiment of the present invention relates to a lens driving device comprising: a base; a cover disposed on the base and including a top plate and a side plate; an AF carrier disposed on the cover; an OIS carrier disposed in the AF carrier; a first magnet and a first coil that move the AF carrier in an optical axis direction; a second magnet and a second coil that move the OIS carrier in a first direction perpendicular to the optical axis direction; a ball disposed between the base and the AF carrier; and a stopper member coupled to the top plate of the cover, wherein at least one of the base or the AF carrier includes a groove in which the ball is disposed, and at least a portion of the stopper member is disposed in the groove.

Description

Lens actuators, camera devices and optical instruments

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

[0002] A camera device is a device that takes pictures or videos of a subject, and is installed in optical devices such as smartphones, drones, and vehicles.

[0003] Camera devices are equipped with an autofocus function that automatically adjusts focus based on the distance to the subject. At this time, a ball may be placed between the moving and fixed parts to guide the moving part along the optical axis.

[0004] However, conventional lens actuators have a problem in that the ball's movement distance is shortened due to the stopper formed on the moving part to limit the ball's movement. More specifically, the ball moves in a rolling manner and then slides after contacting the stopper. However, the coefficient of friction during the ball's rolling movement differs from the coefficient of friction during its sliding movement, which causes a problem in that the autofocus performance is degraded.

[0005] Additionally, the camera device is equipped with an image stabilization function that prevents the focus from shaking due to the user's hand shake, along with an autofocus function.

[0006] However, in conventional lens actuators, the OIS movement is supported only by the AF movement.

[0007] In this case, shake that occurs during AF operation due to manufacturing tolerances, such as uneven AF guide ball diameters, may be transmitted to the OIS moving body. In this case, if the shake frequency band (12 Hz to 12 Hz) that occurs when the user uses the camera is different from the frequency band due to shake that occurs during operation as described above, there is a problem that compensation for multiple frequency bands must be performed.

[0008] Additionally, the OIS movement combined with the lens barrel may also tilt due to unintended tilting of the AF movement, which may result in a mismatch between the image surface of the lens and the sensor pixel plane of the image sensor, resulting in a lower quality of the captured image.

[0009] (Patent Document 1) KR 10-2020-0123599 A

[0010] A first embodiment of the present invention provides a lens driving device that performs upper movement restriction of a ball that guides movement of a moving part in the optical axis direction through a separate member coupled to a cover.

[0011] A second embodiment of the present invention provides a lens driving device including a structure in which an OIS moving body is supported by both an AF moving body and a fixed part.

[0012] A lens driving device according to a first embodiment of the present invention comprises: a base; a cover disposed on the base and including an upper plate and a side plate; an AF carrier disposed within the cover; an OIS carrier disposed within the AF carrier; a first magnet and a first coil for moving the AF carrier in an optical axis direction; a second magnet and a second coil for moving the OIS carrier in a first direction perpendicular to the optical axis direction; a ball disposed between the base and the AF carrier; and a stopper member coupled to the upper plate of the cover, wherein at least one of the base and the AF carrier includes a groove in which the ball is disposed, and at least a portion of the stopper member may be disposed in the groove.

[0013] The above ball can move along a rail formed by the groove in the optical axis direction between the base and the AF carrier.

[0014] The above stopper member may include a protrusion arranged in the groove.

[0015] The above stopper member may be formed of a different material from the cover.

[0016] The above stopper member includes a body portion coupled to the upper plate of the cover, and the protrusion of the stopper member can extend from the body portion in the optical axis direction.

[0017] The upper plate of the cover includes a hole, the body portion of the stopper member is coupled to the upper surface of the upper plate of the cover, and the protrusion of the stopper member can pass through the hole of the upper plate of the cover.

[0018] The body portion of the above stopper member can be coupled to the lower surface of the upper plate of the cover.

[0019] The length of the protrusion of the stopper member in the optical axis direction may be greater than the diameter of the ball.

[0020] The above ball includes a first ball having a first diameter and a second ball having a second diameter smaller than the first diameter, and a length of the protrusion of the stopper member in the optical axis direction may be greater than the diameter of the first ball.

[0021] The diameter of the first ball may be 85% to 95% of the length of the protrusion of the stopper member in the optical axis direction.

[0022] The diameter of the second ball may be 75% to 85% of the length of the protrusion of the stopper member in the optical axis direction.

[0023] A cross-section perpendicular to the optical axis of the protrusion of the stopper member is circular with a third diameter, and the third diameter of the protrusion of the stopper member may be smaller than the second diameter of the second ball.

[0024] The base includes a first corner region and a second corner region that are arranged diagonally from each other, and a third corner region and a fourth corner region that are arranged diagonally from each other, and the ball can be arranged in the first corner region and the third corner region of the base.

[0025] The protrusion of the stopper member may include two protrusions arranged in parallel on one body part.

[0026] The above stopper member may include a protrusion protruding downward from the body portion and connecting the two protrusions.

[0027] The upper plate of the cover includes a recessed portion formed convexly downward, and the body portion of the stopper member can be placed in the recessed portion of the cover.

[0028] The above lens actuator may include an elastic member that presses the ball to come into close contact with the base and the AF carrier.

[0029] A camera device according to a first embodiment of the present invention may include a printed circuit board; an image sensor disposed on the printed circuit board; the lens driving device disposed on the printed circuit board; and a lens coupled to the lens driving device.

[0030] An optical device according to a first embodiment of the present invention may include a main body; the camera device disposed in the main body; and a display disposed in the main body and outputting at least one of an image and a video captured by the camera device.

[0031] A lens driving device according to a second embodiment of the present invention comprises: a base; a first carrier disposed on the base; a second carrier disposed on the first carrier; a third carrier disposed on the second carrier; a first driving unit that moves the first carrier in an optical axis direction; a second driving unit that moves the second carrier in a first direction perpendicular to the optical axis direction; a third driving unit that moves the third carrier in a second direction perpendicular to the optical axis direction and intersecting the first direction; and a first ball disposed between the base and the second carrier, wherein the first ball can guide movement of the second carrier relative to the base in the optical axis direction and the first direction.

[0032] The above first ball can contact the above base and the above second carrier.

[0033] The base includes a groove, the second carrier includes a groove, the first ball is disposed between the groove of the base and the groove of the second carrier, and a first length in the optical axis direction and a second length in the first direction of each of the groove of the base and the groove of the second carrier may be greater than a diameter of the first ball.

[0034] The first carrier may include a hole, the second carrier may include a protrusion passing through the hole of the first carrier, and the first ball may be disposed between the base and the protrusion of the second carrier.

[0035] A second ball is included between the first carrier and the second carrier, and the second ball can guide movement of the second carrier relative to the first carrier in the first direction.

[0036] A third ball is included between the base and the first carrier, and the third ball can guide movement of the first carrier relative to the base in the optical axis direction.

[0037] At least a portion of the third ball may overlap the first ball in the optical axis direction.

[0038] The second carrier may include a first yoke disposed on the second carrier, the first driving unit may include a first magnet disposed on the first carrier, and the second ball may be disposed at a height between the first yoke and the first magnet.

[0039] A second ball is disposed between the first carrier and the second carrier, the first driving unit includes a first magnet disposed on the first carrier, the first carrier includes a groove in which the second ball is disposed, and in the second direction, the groove of the first carrier may not overlap with the first magnet.

[0040] A second yoke is disposed on the first side of the base, the first ball is disposed between the first side of the base and the protrusion of the second carrier, and a second magnet that exerts an attractive force on the second yoke may be disposed on the protrusion of the second carrier.

[0041] A fourth ball is included that is positioned between the second carrier and the third carrier, and the fourth ball can guide movement of the third carrier relative to the second carrier in the second direction.

[0042] The substrate may be disposed on the base, and the second driving unit may include a third magnet disposed on the second carrier, and a third coil disposed on the substrate to correspond to the third magnet.

[0043] The substrate may include a substrate connecting the base and the first carrier, the substrate including an outer portion arranged on the base, an inner portion arranged on the first carrier, and a connecting portion connecting the outer portion and the inner portion and including a bent shape, and the second driving portion may include a third magnet arranged on the second carrier, and a third coil arranged on the inner portion of the substrate to correspond to the third magnet.

[0044] The second driving unit includes a third magnet and a third coil interacting with the third magnet, the third magnet being arranged perpendicular to the first direction, and the entire area of ​​the surface of the third magnet facing the third coil can have the same polarity.

[0045] The second driving unit includes a third magnet and a third coil interacting with the third magnet, the third magnet is arranged parallel to the first direction, and the third magnet may have a surface facing the third coil having an N pole and a S pole.

[0046] The above second direction may be perpendicular to the above first direction.

[0047] A lens driving device according to a second embodiment of the present invention comprises: a base; a first carrier disposed on the base; a second carrier disposed on the first carrier; a third carrier disposed on the second carrier; a first driving unit that moves the first carrier in an optical axis direction; a second driving unit that moves the second carrier in a first direction perpendicular to the optical axis direction; a third driving unit that moves the third carrier in a second direction perpendicular to the optical axis direction and intersecting the first direction; a first ball disposed between the base and the first carrier; and a second ball disposed between the base and the second carrier, wherein the base includes a first groove in which the first ball is disposed and a second groove in which the second ball is disposed, and a width of the second groove of the base in the first direction may be greater than a width of the first groove of the base in the first direction.

[0048] A camera device according to a second embodiment of the present invention may include a printed circuit board; an image sensor disposed on the printed circuit board; the lens driving device disposed on the printed circuit board; and a lens coupled to the lens driving device.

[0049] An optical device according to a second embodiment of the present invention may include a main body; the camera device disposed in the main body; and a display disposed in the main body and outputting at least one of an image and a video captured by the camera device.

[0050] According to the first embodiment of the present invention, a lens actuator employing an open ball rail structure can be provided. Accordingly, the ball can move in a rolling or sliding manner throughout the entire stroke of the moving body for autofocusing. In other words, a single movement mode can be maintained without changing from rolling to sliding or vice versa within the stroke.

[0051] In addition, since the stopper structure is formed through a separate injection molding process rather than a metal cover that is difficult to process, the stopper's protrusions can be designed without restrictions in the optical axis direction. In other words, the protrusions can be formed longer than in a structure where the protrusions are formed directly on the metal cover.

[0052] Through a second embodiment of the present invention, a lens driving device can be provided that includes a structure in which an OIS moving body is supported by both an AF moving body and a fixed part.

[0053] Through this, even if there are manufacturing tolerances in the AF guide ball, etc., shake may not be transmitted to the OIS moving body.

[0054] Additionally, even when the AF moving body is tilted, the OIS moving body can maintain its correct posture without tilting.

[0055] In addition, a lens driving device in which an AF guide ball and an OIS guide ball are shared can be provided through the second embodiment of the present invention.

[0056] Fig. 1 is a perspective view of a lens driving device according to a first embodiment of the present invention.

[0057] Figure 2 is a cross-sectional view taken along line AA of Figure 1.

[0058] Figure 3 is a cross-sectional view viewed from BB in Figure 1.

[0059] Figure 4 is a cross-sectional view taken from CC of Figure 1.

[0060] Figure 5 is a cross-sectional view taken from DD of Figure 1.

[0061] Figure 6 is an enlarged view of a portion of Figure 5.

[0062] Figure 7 is a cross-sectional view of a lens driving device according to a first embodiment of the present invention, cut perpendicular to the optical axis and viewed from above.

[0063] Figure 8 is an exploded perspective view of a lens driving device according to a first embodiment of the present invention.

[0064] Fig. 9 is an exploded perspective view viewed from a different direction than Fig. 8.

[0065] FIG. 10 is a plan view showing a state in which one of the two stopper members is omitted in a lens driving device according to the first embodiment of the present invention.

[0066] Fig. 11 is a partial perspective view showing a reinforcing member by omitting the cover in a lens driving device according to a first embodiment of the present invention.

[0067] Fig. 12 is a bottom perspective view showing the stopper member separated from Fig. 11.

[0068] FIG. 13a is an exploded perspective view showing a cover and a stopper member of a lens driving device according to a first embodiment of the present invention.

[0069] Figure 13b is a drawing of a stopper member of a lens driving device according to a first embodiment of the present invention. (a) is a bottom perspective view, (b) is a bottom view, and (c) is a side view.

[0070] Fig. 14 is a bottom perspective view showing a cover and a stopper member of a lens driving device according to a first embodiment of the present invention.

[0071] Fig. 15 is a perspective view of a lens driving device according to the first embodiment of the present invention with the cover omitted.

[0072] Fig. 16 is a perspective view showing a fixing part and related configuration of a lens driving device according to a first embodiment of the present invention.

[0073] Figure 17 is a perspective view of Figure 16 viewed from a different direction.

[0074] Fig. 18 is a perspective view showing a moving part and related configuration of a lens driving device according to a first embodiment of the present invention.

[0075] Figure 19 is a perspective view of Figure 18 viewed from a different direction.

[0076] Figure 20 is a perspective view of Figure 18 with the cover and substrate omitted.

[0077] Fig. 21 is a perspective view of Fig. 20 with the OIS moving part and related components omitted.

[0078] Fig. 22 is a perspective view showing an OIS moving part and related configuration according to a first embodiment of the present invention.

[0079] Figure 23 is a bottom perspective view of Figure 22 viewed from a different direction.

[0080] Fig. 24 is a bottom perspective view of Fig. 23 with the preload member and metal member omitted.

[0081] Figure 25 is a plan view of a lens driving device according to the first embodiment of the present invention with the cover omitted.

[0082] Figure 26 is an enlarged view of area A of Figure 25.

[0083] Fig. 27 is a bottom perspective view showing the AF guide ball and related configuration of the lens driving device according to the first embodiment of the present invention.

[0084] Fig. 28 is a perspective view showing the AF guide ball of the lens driving device according to the first embodiment of the present invention arranged in a fixing part.

[0085] Fig. 29 is a perspective view showing the AF guide ball of the lens driving device according to the first embodiment of the present invention arranged in the moving part.

[0086] Figures 30 to 32 are drawings for explaining the auto focus driving of the lens driving device according to the first embodiment of the present invention. Figure 30 is a cross-sectional view showing the appearance of the moving part in the initial state where no current is applied to the AF coil. Figure 31 is a cross-sectional view showing the appearance where the moving part moves upward in the optical axis direction when a forward current is applied to the AF coil. Figure 32 is a cross-sectional view showing the appearance where the moving part moves downward in the optical axis direction when a reverse current is applied to the AF coil.

[0087] FIGS. 33 to 35 are diagrams for explaining the shake correction drive of the lens drive device according to the first embodiment of the present invention. FIG. 33 is a cross-sectional view showing the appearance of the OIS moving part in the initial state where no current is applied to the OIS-x coil and the OIS-y coil. FIG. 34 is a cross-sectional view showing the appearance where the OIS moving part moves in the x-axis direction perpendicular to the optical axis when current is applied to the OIS-x coil. FIG. 35 is a cross-sectional view showing the appearance where the OIS moving part moves in the y-axis direction perpendicular to both the optical axis and the x-axis when current is applied to the OIS-y coil.

[0088] Figure 36 is an exploded perspective view of a camera device according to a first embodiment of the present invention.

[0089] Figure 37 is a perspective view of an optical device according to a first embodiment of the present invention.

[0090] Figure 38 is a perspective view of an optical device according to a modified example.

[0091] Figure 39 is a cross-sectional view of a lens driving device according to a second embodiment of the present invention.

[0092] Figure 40 is a cross-sectional view of a lens driving device according to a second embodiment of the present invention, cut parallel to the optical axis.

[0093] Fig. 41 is a cross-sectional view showing the base and related components of a lens driving device according to a second embodiment of the present invention.

[0094] Figure 42 is a plan view showing the AF carrier and related configuration of the lens driving device according to the second embodiment of the present invention.

[0095] Fig. 43 is a plan view showing the OIS-y carrier and related configuration of the lens driving device according to the second embodiment of the present invention.

[0096] Fig. 44 is a plan view showing the OIS-x carrier and related configuration of the lens driving device according to the second embodiment of the present invention.

[0097] Figure 45 (a) is a drawing viewed from A of Figure 41, Figure 45 (b) is a cross-sectional view taken from A of Figure 45 (a) and viewed from above, and Figure 45 (c) is a cross-sectional view taken from B of Figure 45 (a) and viewed from above.

[0098] Figure 46 (a) is a cross-sectional view showing the arrangement structure of the base and ball of the lens driving device according to the second embodiment of the present invention, and Figure 46 (b) is a modified example.

[0099] Fig. 47 is a drawing showing an AF carrier and related configuration of a lens driving device according to a second embodiment of the present invention. Fig. 47 (a) is a plan view, Fig. 47 (b) is a front view, Fig. 47 (c) is a left side view, Fig. 47 (d) is a back view, and Fig. 47 (e) is a right side view.

[0100] Figure 48 is a drawing showing a modified example of Figure 47.

[0101] FIG. 49 is a diagram illustrating an OIS-y carrier and related configuration of a lens driving device according to a second embodiment of the present invention. FIG. 49 (a) is a plan view, FIG. 49 (b) is a front view, FIG. 49 (c) is a front view combined with an AF carrier, FIG. 49 (d) is a left side view, FIG. 49 (e) is a left side view combined with an AF carrier, FIG. 49 (f) is a rear view, FIG. 49 (h) is a right side view, and FIG. 49 (g) is a diagram illustrating the opposite side of FIG. 49 (h).

[0102] Figure 50 (a) is a drawing showing a state in which a base, an AF carrier, and an OIS-y carrier are arranged, Figure 50 (b) is a drawing showing the arrangement structure of the AF guide ball as seen from above, and Figure 50 (c) is a modified example of Figure 50 (b).

[0103] Fig. 51 is a drawing showing the OIS-x carrier and related configuration of the lens driving device according to the second embodiment of the present invention. Fig. 51 (a) is a plan view, Fig. 51 (b) is a right side view, Fig. 51 (c) is a rear view, and Fig. 51 (d) is a plan view of the OIS-x magnet.

[0104] Fig. 52 is a drawing showing a contact structure between a base and an OIS-y carrier. Fig. 52 (a) and (d) are cross-sectional views showing an attractive magnet arranged on a protrusion of the OIS-y carrier, and Fig. 52 (b) and (c) are cross-sectional views showing a yoke arranged on the OIS-y carrier. Fig. 52 (e) is a plan view of the OIS-y magnet, Fig. 52 (f) is a drawing showing a yoke arranged on the OIS-y carrier, and Fig. 52 (g) is a modified example of Fig. 52 (f).

[0105] Fig. 53 is a drawing showing the force structure between the AF magnet and the yoke of the lens driving device according to a modified example. Fig. 53 (a) is a cross-sectional view, and Fig. 53 (b) is a drawing showing the action of force at points A and B of Fig. 53 (a).

[0106] Fig. 54 is a drawing of a lens driving device according to a modified example. In Fig. 54, compared to the second embodiment of the present invention, the arrangement positions and shapes of the OIS-x magnet, the OIS-y magnet, and the yoke can be changed. Fig. 54 (a) is a cross-sectional view of a fixing part, Fig. 54 (b) is a plan view of an OIS-x carrier, Fig. 54 (c) is a plan view of an AF carrier, and Fig. 54 (d) is a plan view of an OIS-y carrier.

[0107] (a) to (d) of FIG. 55 are drawings showing an OIS-y magnet and related configuration according to a modified example, and (e) to (h) of FIG. 55 are drawings showing an OIS-x magnet and related configuration according to a modified example. (a) of FIG. 55 is a plan view of an OIS-y carrier, (b) of FIG. 55 is a back view of the OIS-y carrier, (c) of FIG. 55 is a plan view of the OIS-y magnet, and (d) of FIG. 55 is a modified example of (c) of FIG. 55. (e) of FIG. 55 is a plan view of an OIS-x carrier, (f) of FIG. 55 is a right side view of the OIS-y carrier, and (g) of FIG. 55 is a plan view of the OIS-y magnet, and (h) of FIG. 55 is a modified example of (g) of FIG.

[0108] Fig. 56 is a cross-sectional view of a lens driving device according to a modified example. In Fig. 56, compared to the second embodiment of the present invention, the OIS-x coil and the OIS-y coil can be placed on the AF carrier instead of the fixed part.

[0109] Figure 57 is a cross-sectional view taken along line AA of Figure 56.

[0110] Fig. 58 is a drawing of a lens driving device according to a modified example of Fig. 56. Fig. 58 (a) is a plan view of a base and related components, Fig. 58 (b) is a plan view of an AF carrier and related components, Fig. 58 (c) is a plan view of an OIS-x carrier and related components, and Fig. 58 (d) is a plan view of an OIS-y carrier and related components.

[0111] Fig. 59 is a drawing showing the AF carrier and substrate-related configuration of the lens driving device according to a modified example of Fig. 56. Fig. 59 (a) is a plan view of the AF carrier and related configuration, Fig. 59 (b) is a front view of the AF carrier and related configuration, Fig. 59 (c) is a left side view of the substrate and related configuration, Fig. 59 (d) is a right side view of the substrate and related configuration, Fig. 59 (e) is a back view of the substrate, and Fig. 59 (f) is a back view of the AF carrier.

[0112] Figures 39 to 59 are conceptual diagrams in which all or part of the drawings are conceptually depicted and may be ambiguous or contradictory.

[0113] Figure 60 is an exploded perspective view of a camera device according to a second embodiment of the present invention.

[0114] Figure 61 is a perspective view of an optical device according to a second embodiment of the present invention.

[0115] Figure 62 is a perspective view of an optical device according to a modified example.

[0116] Hereinafter, a preferred embodiment of the present invention will be described in detail with reference to the attached drawings.

[0117] However, the technical idea of ​​the present invention is not limited to some of the embodiments described, but can be implemented in various different forms, and within the scope of the technical idea of ​​the present invention, one or more of the components between the embodiments can be selectively combined or substituted for use.

[0118] In addition, terms (including technical and scientific terms) used in the embodiments of the present invention may be interpreted as having a meaning that can be generally understood by a person of ordinary skill in the technical field to which the present invention belongs, unless explicitly and specifically defined and described, and terms that are commonly used, such as terms defined in a dictionary, may be interpreted in consideration of the contextual meaning of the relevant technology.

[0119] Additionally, the terms used in the embodiments of the present invention are intended to describe the embodiments and are not intended to limit the present invention.

[0120] In this specification, the singular may also include the plural unless specifically stated otherwise in the phrase, and when it is described as “A and / or at least one (or more) of B, C”, it may include one or more of all combinations that can be combined with A, B, C.

[0121] Additionally, in describing components of embodiments of the present invention, terms such as first, second, A, B, (a), (b), etc. may be used. These terms are only intended to distinguish the components from other components, and are not intended to limit the nature, order, or sequence of the components.

[0122] And, when a component is described as being 'connected', 'coupled', or 'connected' to another component, it may include not only cases where the component is 'connected', 'coupled', or 'connected' directly to the other component, but also cases where the component is 'connected', 'coupled', or 'connected' by another component between the component and the other component.

[0123] Additionally, when described as being formed or arranged "above" or "below" each component, "above" or "below" includes not only cases where the two components are in direct contact with each other, but also cases where one or more other components are formed or arranged between the two components. Furthermore, when expressed as "above" or "below," the meaning may include not only the upward direction but also the downward direction based on one component.

[0124] The 'optical axis (see OA in Fig. 30) direction' used below is defined as the optical axis direction of the lens and / or image sensor coupled to the lens driving device.

[0125] The 'vertical direction' used below may be a direction parallel to or the same direction as the optical axis direction. The vertical direction may correspond to the 'z-axis direction'. The 'horizontal direction' used below may be a direction perpendicular to the vertical direction. That is, the horizontal direction may be a direction perpendicular to the optical axis. Therefore, the horizontal direction may include the 'x-axis direction' and the 'y-axis direction'.

[0126] Hereinafter, one of the ‘x-axis direction’ and the ‘y-axis direction’ may be referred to as the ‘first direction’ and the other may be referred to as the ‘second direction’.

[0127] The 'auto focus (AF) function' used below is defined as a function that automatically focuses on a subject by adjusting the distance from the image sensor by moving the lens in the optical axis direction according to the distance of the subject so that a clear image of the subject can be obtained on the image sensor. In addition, 'closed-loop auto focus (CLAF) control' is defined as a function that detects the distance between the image sensor and the lens and provides feedback control of the position of the lens in real time to improve the accuracy of focus adjustment.

[0128] The term "optical image stabilization (OIS) function" used below is defined as a function that moves or tilts the lens in a direction perpendicular to the optical axis to compensate for hand shake in order to prevent images or videos from shaking due to the user's hand shake. In addition, "closed-loop auto focus (CLAF) control" is defined as a function that detects the position of the lens with respect to the image sensor and provides real-time feedback control of the lens position to improve the accuracy of hand shake correction.

[0129] Hereinafter, one of the “AF moving part (200)” and the “OIS moving part (300)” may be referred to as the “first moving part” and the other may be referred to as the “second moving part”.

[0130] Hereinafter, one of the “AF drive unit” and the “OIS drive unit” may be referred to as the “first drive unit” and the other may be referred to as the “second drive unit.”

[0131] Hereinafter, one of the “AF drive unit”, “OIS-x drive unit” and “OIS-y drive unit” may be referred to as the “first drive unit”, another may be referred to as the “second drive unit” and another may be referred to as the “third drive unit”.

[0132] Hereinafter, one of the “AF magnet (410)”, the “OIS-x magnet (510)”, and the “OIS-y magnet (610)” may be referred to as the “first magnet”, the other may be referred to as the “second magnet”, and the other may be referred to as the “third magnet”.

[0133] Hereinafter, one of the “AF coil (420)”, the “OIS-x coil (520)”, and the “OIS-y coil (620)” may be referred to as the “first coil”, the other may be referred to as the “second coil”, and the other may be referred to as the “third coil”.

[0134] Hereinafter, one of the “AF sensor (430)”, the “OIS-x sensor (530)”, and the “OIS-y sensor (630)” may be referred to as the “first sensor”, the other may be referred to as the “second sensor”, and the other may be referred to as the “third sensor”.

[0135] Hereinafter, one of the “AF guide ball (810)” and the “OIS guide ball (820)” may be referred to as the “first ball” and the other may be referred to as the “second ball”.

[0136] Hereinafter, one of the “holder member (220)” and the “preload member (230)” may be referred to as the “first member” and the other as the “second member”. Alternatively, hereinafter, one of the “holder member (220)” and the “preload member (230)” may be referred to as the “first housing” and the other as the “second housing”.

[0137] Hereinafter, one of the individual balls of the AF guide ball (810) and the individual balls of the OIS guide ball (820) may be referred to as the "first unit ball," the other as the "second unit ball," the other as the "third unit ball," and the other as the "fourth unit ball." Furthermore, the term "nth unit ball" may be used to refer to individual balls such as the "fifth unit ball," "sixth unit ball," etc.

[0138] Hereinafter, one of the “pillar portion (111)” and the “external wall portion (112)” may be referred to as the “first portion” and the other may be referred to as the “second portion”.

[0139] Hereinafter, one of the “inner groove (111-1)” and the “outer groove (112-1)” may be referred to as the “first groove” and the other may be referred to as the “second groove”.

[0140] Hereinafter, one of the “inner groove (224-1)” and the “outer groove (224-2)” may be referred to as the “first groove” and the other may be referred to as the “second groove”.

[0141] Hereinafter, one of the "inner ball (811)" and the "outer ball (812)" may be referred to as the "first unit ball" and the other as the "second unit ball." Alternatively, hereinafter, one of the "inner ball (811)" and the "outer ball (812)" may be referred to as the "first ball" and the other as the "second ball."

[0142] Hereinafter, one of the “upper bend (921)”, the “lower bend (922)”, and the “connecting bend (923)” may be referred to as the “first bend”, the other may be referred to as the “second bend”, and the other may be referred to as the “third bend”.

[0143] Hereinafter, the "AF carrier (210)" may be referred to as a "housing." Hereinafter, the "OIS carrier (310)" may be referred to as a "bobbin."

[0144] Hereinafter, one of the “AF moving part (1200)” and the “OIS moving part (1300)” may be referred to as the “first moving part” and the other may be referred to as the “second moving part”.

[0145] Hereinafter, one of the “AF moving part (1200)”, the “OIS-x moving part” and the “OIS-y moving part” may be referred to as the “first moving part”, the other may be referred to as the “second moving part” and the other may be referred to as the “third moving part”.

[0146] Hereinafter, one of the “AF carrier (1210)”, the “OIS-x carrier (1310)”, and the “OIS-y carrier (1320)” may be referred to as the “first carrier”, the other may be referred to as the “second carrier”, and the other may be referred to as the “third carrier”.

[0147] Hereinafter, one of the “AF drive unit” and the “OIS drive unit” may be referred to as the “first drive unit” and the other may be referred to as the “second drive unit.”

[0148] Hereinafter, one of the “AF drive unit”, “OIS-x drive unit” and “OIS-y drive unit” may be referred to as the “first drive unit”, the other may be referred to as the “second drive unit” and the other may be referred to as the “third drive unit”.

[0149] Hereinafter, one of the “AF magnet (1410)”, “OIS-x magnet (1510)”, “OIS-y magnet (1610)” and “human force magnet (1920)” may be referred to as the “first magnet”, the other may be referred to as the “second magnet”, the other may be referred to as the “third magnet” and the other may be referred to as the “fourth magnet”.

[0150] Hereinafter, one of the “AF coil (1420)”, the “OIS-x coil (1520)”, and the “OIS-y coil (1620)” may be referred to as the “first coil”, the other may be referred to as the “second coil”, and the other may be referred to as the “third coil”.

[0151] Hereinafter, one of the “AF sensor (1430)”, the “OIS-x sensor (1530)”, and the “OIS-y sensor (1630)” may be referred to as the “first sensor”, the other may be referred to as the “second sensor”, and the other may be referred to as the “third sensor”.

[0152] Hereinafter, one of the “AF guide ball (1810)”, “OIS-x guide ball (1820)”, “OIS-y guide ball (1830)” and “common guide ball (1840)” may be referred to as the “first ball”, the other may be referred to as the “second ball”, the other may be referred to as the “third ball” and the other may be referred to as the “fourth ball”.

[0153] Hereinafter, among the "AF guide ball (1810)", "OIS-x guide ball (1820)", "OIS-y guide ball (1830)", and "common guide ball (1840)", one individual ball may be referred to as the "first unit ball", another as the "second unit ball", another as the "third unit ball", and another as the "fourth unit ball". Furthermore, the "nth unit ball" may be used to refer to an individual ball, such as the "fifth unit ball", "sixth unit ball", etc.

[0154] Hereinafter, one of “York (1910)”, “York (1930)” and “York (1940)” may be referred to as the “first yoke”, the other as the “second yoke” and the other as the “third yoke”.

[0155]

[0156] Hereinafter, the configuration of a lens driving device according to a first embodiment of the present invention will be described with reference to the drawings.

[0157] FIG. 1 is a perspective view of a lens driving device according to a first embodiment of the present invention. FIG. 2 is a cross-sectional view taken along line AA of FIG. 1. FIG. 3 is a cross-sectional view taken along line BB of FIG. 1. FIG. 4 is a cross-sectional view taken along line CC of FIG. 1. FIG. 5 is a cross-sectional view taken along line DD of FIG. 6 is an enlarged view of a portion of FIG. 5. FIG. 7 is a cross-sectional view taken along line DD of FIG. 8 is an exploded perspective view of a lens driving device according to a first embodiment of the present invention when viewed from above and cut perpendicular to the optical axis. FIG. 9 is an exploded perspective view of a lens driving device according to a first embodiment of the present invention when viewed from a different direction from FIG. 10 is a plan view illustrating a state in which one of two stopper members is omitted in a lens driving device according to a first embodiment of the present invention. Fig. 11 is a partial perspective view showing a reinforcing member with the cover omitted in the lens driving device according to the first embodiment of the present invention. Fig. 12 is a bottom perspective view showing the stopper member separated from Fig. 11. Fig. 13a is an exploded perspective view showing the cover and the stopper member of the lens driving device according to the first embodiment of the present invention. Fig. 13b is a drawing of the stopper member of the lens driving device according to the first embodiment of the present invention. (a) is a bottom perspective view, (b) is a bottom view, and (c) is a side view. Fig. 14 is a bottom perspective view showing the cover and the stopper member of the lens driving device according to the first embodiment of the present invention. Fig. 15 is a perspective view of the lens driving device according to the first embodiment of the present invention with the cover omitted. Fig. 16 is a perspective view showing a fixed part and related components of a lens driving device according to a first embodiment of the present invention. Fig. 17 is a perspective view of Fig. 16 viewed from another direction. Fig. 18 is a perspective view showing a moving part and related components of a lens driving device according to a first embodiment of the present invention. Fig. 19 is a perspective view of Fig. 18 viewed from another direction. Fig. 20 is a perspective view of Fig. 18 with the cover and substrate omitted. Fig. 21 is a perspective view of Fig. 20 with the OIS moving part and related components omitted.Fig. 22 is a perspective view illustrating an OIS moving part and related components according to the first embodiment of the present invention. Fig. 23 is a bottom perspective view of Fig. 22 viewed from another direction. Fig. 24 is a bottom perspective view of Fig. 23 with the pre-loading member and the metal member, etc. omitted. Fig. 25 is a plan view of a lens driving device according to the first embodiment of the present invention with the cover omitted. Fig. 26 is an enlarged view of area A of Fig. 25. Fig. 27 is a bottom perspective view illustrating an AF guide ball and related components of a lens driving device according to the first embodiment of the present invention. Fig. 28 is a perspective view illustrating an AF guide ball of a lens driving device according to the first embodiment of the present invention arranged in a fixed part. Fig. 29 is a perspective view illustrating an AF guide ball of a lens driving device according to the first embodiment of the present invention arranged in a moving part.

[0158] The lens driving device (10) may be a voice coil motor (VCM). The lens driving device (10) may be a lens driving motor. The lens driving device (10) may be a lens driving actuator. The lens driving device (10) may include an AF module. The lens driving device (10) may include an OIS module.

[0159] The lens actuator (10) may include a fixed part (100). The fixed part (100) may be a part that is relatively fixed when the moving part moves. The moving part may move relative to the fixed part (100).

[0160] The lens actuator (10) may include a base (110). The fixing member (100) may include the base (110). The base (110) may be disposed below the AF carrier (210). The base (110) may be disposed below the OIS carrier (310). The base (110) may be coupled to the cover (120). The AF carrier (210) and the OIS carrier (310) may be disposed on the base (110). The AF carrier (210) and the OIS carrier (310) may be disposed on the lower plate of the base (110). The AF carrier (210) and the OIS carrier (310) may be disposed within the base (110). The AF carrier (210) and the OIS carrier (310) may be disposed within the side wall of the base (110).

[0161] The base (110) may include a lower plate. The lower plate of the base (110) may support the lower surface of the AF moving part (200). The lower plate of the base (110) may support the lower surface of the AF carrier (210).

[0162] The base (110) may include a pillar portion (111). The pillar portion (111) may extend from the upper surface of the lower plate portion. The pillar portion (111) may be arranged on the inner side of the outer wall portion (112).

[0163] The base (110) may include a first guide that guides the AF guide ball (810) to move. The first guide may include an inner groove (111-1) of the base (110). The first guide may include an outer groove (112-1) of the base (110).

[0164] The base (110) may include an inner groove (111-1). The column portion (111) may include an inner groove (111-1). The inner groove (111-1) may be formed in the column portion (111). The inner groove (111-1) may be an 'AF guide ball receiving groove'. An AF guide ball (810) may be arranged in the inner groove (111-1). The inner ball (811) may be arranged in the inner groove (111-1). The inner groove (111-1) may be in direct contact with the AF guide ball (810). The inner groove (111-1) may be arranged in the optical axis direction. The inner groove (111-1) may include a plurality of grooves. The inner groove (111-1) may include two grooves. The two grooves may be arranged parallel to each other.

[0165] The base (110) may include a step (111-2). The step (111-2) may be formed on the column portion (111). A plate member (910) may be placed on the step (111-2).

[0166] The base (110) may include an outer wall portion (112). The outer wall portion (112) may be a 'side portion'. The outer wall portion (112) may be a 'side plate'. The outer wall portion (112) may be a 'side wall'. The outer wall portion (112) of the base (110) may extend from the upper surface of the lower plate.

[0167] In the first embodiment of the present invention, the pillar portion (111) and the outer wall portion (112) of the base (110) may be connected. Alternatively, as a variation, the pillar portion (111) and the outer wall portion (112) of the base (110) may be spaced apart from each other.

[0168] The base (110) may include an outer groove (112-1). The outer wall portion (112) may include an outer groove (112-1). The outer groove (112-1) may be formed to face the inner groove (111-1). The outer groove (112-1) may be arranged to face the inner groove (111-1). The outer groove (112-1) may be an 'AF guide ball receiving groove'. An AF guide ball (810) may be arranged in the outer groove (112-1). An outer ball (812) may be arranged in the outer groove (112-1). The outer groove (112-1) may be in direct contact with the AF guide ball (810). The outer groove (112-1) may be arranged in the optical axis direction. The outer groove (112-1) may include a plurality of grooves. The outer groove (112-1) may include two grooves. The two grooves may be arranged parallel to each other. The outer groove (112-1) may be arranged on the opposite side of the inner groove (111-1). The outer groove (112-1) may be formed to have a shape corresponding to the inner groove (111-1). The outer groove (112-1) and the inner groove (111-1) may be formed to have the same length in the optical axis direction.

[0169] The base (110) may include a groove (114). The groove (114) may be formed in a portion protruding outward from the base (110). The groove (114) may be recessed from the outer surface of the base (110). A connecting portion (720) of the substrate (700) may be arranged in the groove (114).

[0170] The base (110) may include a step. The step may be formed at the lower end of the outer surface of the base (110). The step may protrude from the outer surface of the base (110). A side plate (122) of the cover (120) may be placed on the step of the base (110).

[0171] The lens actuator (10) may include a yoke (115). The yoke (115) may be disposed on the base (110). The yoke (115) may be disposed perpendicular to the lower plate of the base (110). The yoke (115) may be disposed to connect two adjacent pillars of the base (110). A substrate (700) may be disposed on the yoke (115). An outer portion (710) of the substrate (700) may be disposed on the yoke (115). The yoke (115) may be disposed within the cover (120). The yoke (115) may be disposed parallel to an adjacent side plate (122) of the cover (120).

[0172] The lens actuator (10) may include a cover (120). The fixing member (100) may include the cover (120). The cover (120) may be placed on the base (110). The cover (120) may be placed on the base (110). The cover (120) may be coupled to the base (110). The cover (120) may be fixed to the base (110). The cover (120) may accommodate an AF carrier (210) therein. The cover (120) may accommodate an OIS carrier (310) therein. The cover (120) may be a shield member. The cover (120) may be a shield can.

[0173] The cover (120) may include a top plate (121). The top plate (121) may be placed on a moving part. The upward movement of the moving part may be limited by the moving part coming into contact with the top plate (121).

[0174] The cover (120) may include a hole (121-1) formed in the upper plate (121) to allow light to pass through. The upper plate (121) of the cover (120) may include a hole (121-1) through which light passes. The hole (121-1) may be hollow. The hole (121-1) may be positioned corresponding to a lens. The hole (121-1) may be positioned corresponding to an image sensor (60).

[0175] The cover (120) may include a hole (121-2) formed in the upper plate (121). The upper plate (121) may include the hole (121-2). The hole (121-2) may be formed in a corner area of ​​the upper plate. The hole (121-2) may be formed in two corner areas among four corner areas of the upper plate. The hole (121-2) may be formed at a position corresponding to the AF guide ball (810) in the optical axis direction. A stopper member (130) may be coupled to the hole (121-2). A protrusion (132) of the stopper member (130) may be inserted into the hole (121-2). The hole (121-2) may be spaced apart from the hollow hole (121-1).

[0176] As a variation, the hole (121-2) may be omitted and the stopper member (130) may be coupled to the lower surface of the upper plate (121) of the cover (120). That is, the stopper member (130) may be assembled to the cover (120) without a hole.

[0177] The cover (120) may include a recessed portion (121-3). The top plate (121) may include a recessed portion (121-3). The recessed portion (121-3) may be formed convexly downward on the top plate (121). The recessed portion (121-3) may be formed concavely when viewed from above. The stopper member (130) may be arranged in a concave portion of the recessed portion (121-3). At this time, the recessed depth of the recessed portion (121-3) may match the thickness of the stopper member (130) in the corresponding direction. Alternatively, the recessed depth of the recessed portion (121-3) may be 90% to 110% of the thickness of the stopper member (130) in the corresponding direction. Alternatively, the sunken depth of the recessed portion (121-3) may be 80% to 120% of the thickness of the stopper member (130) in the corresponding direction. The stopper member (130) may be positioned so as not to protrude more than other parts of the upper plate (121) of the cover (120).

[0178] The cover (120) may include a side plate (122). The side plate (122) may extend from the top plate (121). The side plate (122) may be disposed on the base (110). The side plate (122) may be disposed on a step portion that protrudes from the lower portion of the outer surface of the base (110). The side plate (122) may include a plurality of side plates. The side plate (122) may include four side plates. The side plate (122) may include a first side plate and a second side plate that are disposed opposite each other, and a third side plate and a fourth side plate that are disposed opposite each other.

[0179] The lens actuator (10) may include a stopper member (130). The stopper member (130) may be disposed on the cover (120). The stopper member (130) may be coupled to the cover (120). The stopper member (130) may be fixed to the cover (120). The stopper member (130) may be adhesively bonded to the cover (120). The stopper member (130) may be disposed on the upper plate (121) of the cover (120). The stopper member (130) may be coupled to the upper plate (121) of the cover (120). The stopper member (130) may be fixed to the upper plate (121) of the cover (120). The stopper member (130) may be adhesively bonded to the upper plate (121) of the cover (120). The stopper member (130) may be formed of a different material from the cover (120). The cover (120) may be formed of metal. The stopper member (130) may be formed as an injection molded product. The first embodiment of the present invention can prevent the detachment of the AF guide ball (810) by avoiding difficult processing of the cover (120) and through simple assembly.

[0180] The stopper member (130) can limit the upward movement of the AF guide ball (810). When the AF guide ball (810) moves upward, the AF guide ball (810) can come into contact with the stopper member (130). The length of the protrusion (132) of the stopper member (130) in the optical axis direction can be longer than the stroke length of the AF carrier (210). Through this, even if the AF carrier (210) moves, the protrusion (132) of the stopper member (130) can be placed on the rail between the base (110) and the AF carrier (210). Therefore, the upward separation of the AF guide ball (810) placed on the rail can be prevented.

[0181] The lower stopper of the AF guide ball (810) may be formed on the base (110). The base (110) may include a protrusion protruding upward from the lower plate. The protrusion of the base (110) may be arranged on a rail between the base (110) and the AF carrier (210). That is, in the optical axis direction, the AF guide ball (810) may be arranged between the protrusion of the base (110) and the protrusion (132) of the stopper member (130). The protrusion of the base (110) may prevent the AF guide ball (810) arranged on the rail from being dislodged downward.

[0182] The distance in the optical axis direction between the protrusion (132) of the stopper member (130) and the protrusion of the base (110) may be longer than the length in the optical axis direction of the rail or groove formed in the AF carrier (210). As the length of the rail along which the AF guide ball (810) moves increases, the AF guide ball (810) can move in a rolling manner throughout the entire stroke section of the AF carrier (210).

[0183] In the first embodiment of the present invention, the rail on which the AF guide ball (810) is arranged may have an 'open ball rail structure'. The upper and lower limits of movement of the AF guide ball (810) may be determined by the fixing unit (100) rather than by the AF moving unit (200).

[0184] The stopper member (130) may include a body portion (131). The body portion (131) may be disposed on the upper plate (121) of the cover (120). The body portion (131) may be coupled to the upper plate (121) of the cover (120). The body portion (131) may be fixed to the upper plate (121) of the cover (120). The body portion (131) may be bonded to the upper plate (121) of the cover (120) with an adhesive. The body portion (131) may be disposed on the upper surface of the upper plate (121) of the cover (120). The body portion (131) may be coupled to the upper surface of the upper plate (121) of the cover (120).

[0185] The stopper member (130) may include a protrusion (132). At least a portion of the protrusion (132) may be arranged on a rail along which the AF guide ball (810) moves. The protrusion (132) may be formed on the lower surface of the body portion (131). The protrusion (132) may extend from the body portion (131). The protrusion (132) may protrude from the body portion (131). The protrusion (132) may extend in the optical axis direction from the body portion (131). The protrusion (132) may extend downward from the body portion (131). The protrusion (132) may pass through the hole (121-2) of the upper plate (121) of the cover (120). The protrusion (132) may be inserted into the hole (121-2) of the upper plate (121) of the cover (120). The protrusion (132) of the stopper member (130) may include two protrusions (132) arranged in parallel on one body part (131). The protrusion (132) may be an extension. The protrusion (132) may be a protrusion. The protrusion (132) may be a protrusion. The stopper member (130) may include an extension arranged in a groove where the AF guide ball (810) is arranged. The stopper member (130) may include a protrusion arranged in a groove where the AF guide ball (810) is arranged.

[0186] Alternatively, the protrusion (132) may be formed integrally with the metal cover (120) rather than as a separate injection molded product. The protrusion (132) may be formed integrally with the upper plate (121) of the cover (120). The protrusion (132) may protrude downward from the upper plate (121) of the cover (120). A corresponding groove may be formed on the opposite side of the protrusion (132).

[0187] The stopper member (130) may include a protrusion (133). The protrusion (133) may be formed on the lower surface of the body portion (131). The protrusion (133) may protrude from the body portion (131). The protrusion (133) may extend from the body portion (131). The protrusion (133) may protrude from the body portion (131) in the optical axis direction. The protrusion (133) may protrude downward from the body portion (131). The protrusion (133) may connect two protrusions (132).

[0188] The protrusion (132) may have a cylindrical shape. Alternatively, the protrusion (132) may be formed in a polygonal column shape. The protrusion (132) may be formed in a column shape.

[0189] The lens driving device (10) may include a moving part. The moving part may be disposed on the fixed part (100). The moving part may be disposed within the fixed part (100). The moving part may be disposed on the fixed part (100). The moving part may be movably disposed on the fixed part (100). The moving part may be moved relative to the fixed part (100) by the driving part. The moving part may be moved when the AF is driven. The moving part may be moved when the OIS is driven. A lens may be coupled to the moving part.

[0190] The lens driving device (10) may include an AF moving unit (200). The AF moving unit (200) may be disposed on the fixed unit (100). The AF moving unit (200) may be disposed within the fixed unit (100). The AF moving unit (200) may be disposed on the fixed unit (100). The AF moving unit (200) may be disposed between the fixed unit (100) and the OIS moving unit (300). The AF moving unit (200) may be movably disposed on the fixed unit (100). The AF moving unit (200) may move in the optical axis direction with respect to the fixed unit (100) by the AF driving unit (400). The AF moving unit (200) may move during AF driving.

[0191] In a modified example, the AF moving unit (200) and the AF driving unit (400) may be omitted. That is, the OIS moving unit (300) may be placed on the fixed unit (100). Alternatively, the OIS moving unit (300) may be placed on the fixed unit (100) and the AF moving unit (200) may be placed within the OIS moving unit (300).

[0192] The lens driving device (10) may include an AF carrier (210). The AF moving unit (200) may include the AF carrier (210). The AF carrier (210) may be an 'AF holder'. The AF carrier (210) may be a 'housing'. The AF carrier (210) may be placed within the base (110). The AF carrier (210) may be placed on the base (110). The AF carrier (210) may be placed within the cover (120). The AF carrier (210) may be placed between the base (110) and the OIS carrier (310). The AF carrier (210) may be placed so as to be movable in the optical axis direction.

[0193] The AF carrier (210) may include a frame, a first upper plate, and a second upper plate. In this case, the frame may be a body part. The frame may be a holder member (220). The first upper plate may be a first metal member (225). The second upper plate may be a preload member (230). The AF carrier (210) may be a housing. The housing may include a first housing and a second housing. In this case, the first housing may include a holder member (220) and the second housing may include a preload member (230). The OIS carrier (310) may be a bobbin. The OIS guide ball (820) may be arranged between the housing and the bobbin. The AF guide ball (810) may be arranged between a side surface of the housing and a cover (120). The AF guide ball (810) can be placed between the side of the housing and the base or the pillar of the base.

[0194] The lens actuator (10) may include a holder member (220). The AF carrier (210) may include the holder member (220). The holder member (220) may be formed separately from the preload member (230). A wire (850) may be coupled to the holder member (220).

[0195] The AF carrier (210) may include a lower plate. The lower plate may be positioned below the OIS carrier (310). The lower plate may be positioned between the OIS carrier (310) and the base (110).

[0196] The AF carrier (210) may include a groove (222). The groove (222) may be a 'preload member passage hole'. The holder member (220) may include a groove (222). The lower plate of the holder member (220) may include a groove (222). The groove (222) may be formed on the lower plate of the holder member (220). The groove (222) may be open inward. The preload member (230) may be inserted into the groove (222). The protrusion (231) of the preload member (230) may be inserted into the groove (222). The groove (222) may be formed as a hole. The groove (222) may be replaced with a hole. That is, as a variation, the AF carrier (210) may include a groove (222) into which the protrusion (231) of the preload member (230) is inserted.

[0197] The AF carrier (210) may include a side wall. The side wall may extend downward from the upper plate. An inner substrate (720) may be disposed on the side wall. An AF coil (420) may be disposed on the side wall. An OIS-x coil (520) may be disposed on the side wall. An OIS-y coil (620) may be disposed on the side wall. The side wall may include a groove for avoiding the coil. The side wall may include a plurality of side walls. The side wall may include four side walls. The side wall may include a first side wall and a second side wall disposed opposite each other, and a third side wall and a fourth side wall disposed opposite each other.

[0198] The AF carrier (210) may include a second guide that guides the AF guide ball (810) to move. The second guide may include an inner groove (224-1) of the AF carrier (210). The second guide may include an outer groove (224-2) of the AF carrier (210).

[0199] The AF carrier (210) may include an inner groove (224-1). The holder member (220) may include an inner groove (224-1). The inner groove (224-1) may be an 'AF guide ball receiving groove'. An AF guide ball (810) may be arranged in the inner groove (224-1). An inner ball (811) may be arranged in the inner groove (224-1). The inner groove (224-1) may be in direct contact with the AF guide ball (810). The inner groove (224-1) may be arranged in the optical axis direction. The inner groove (224-1) may guide the AF guide ball (810) to move in the optical axis direction. The inner groove (224-1) may include a plurality of grooves. The inner groove (224-1) may include two grooves. The two grooves can be arranged parallel to each other. The two grooves can be arranged diagonally relative to the optical axis.

[0200] The AF carrier (210) may include an outer groove (224-2). The holder member (220) may include an outer groove (224-2). The outer groove (224-2) may be an 'AF guide ball receiving groove'. An AF guide ball (810) may be arranged in the outer groove (224-2). An outer ball (812) may be arranged in the outer groove (224-2). The outer groove (224-2) may be in direct contact with the AF guide ball (810). The outer groove (224-2) may be arranged in the optical axis direction. The outer groove (224-2) may guide the AF guide ball (810) to move in the optical axis direction. The outer groove (224-2) may include a plurality of grooves. The outer groove (224-2) may include two grooves. The two grooves can be arranged parallel to each other. The two grooves can be arranged diagonally with respect to the optical axis. The outer groove (224-2) can be arranged opposite the inner groove (224-1). The outer groove (224-2) can be formed in a shape corresponding to the inner groove (224-1). The outer groove (224-2) and the inner groove (224-1) can be formed to have the same length in the optical axis direction.

[0201] The AF carrier (210) may include a first metal member (225). The holder member (220) may include the first metal member (225). The holder member (220) may include a lower plate having the first metal member (225). The first metal member (225) may be a 'horizontal metal member' arranged in a direction perpendicular to the optical axis. The first metal member (225) may be arranged in the holder member (220). The first metal member (225) may be insert-molded into the holder member (220). At least a portion of the first metal member (225) may be arranged on the upper surface of the holder member (220). The first metal member (225) may be arranged to reinforce the strength of the holder member (220).

[0202] The first metal member (225) may include a hole. A wire (850) may be placed in the hole. The wire (850) may pass through the hole of the first metal member (225).

[0203] The first metal member (225) may include a first hole. The first hole may be arranged adjacent to the wire (850). The first hole may be arranged adjacent to a hole through which the wire (850) passes. The first hole may be arranged adjacent to a conductive member that connects the wire (850) and the first metal member (225). The conductive member that connects the wire (850) and the first metal member (225) may be introduced into the first hole. Solder that connects the wire (850) and the first metal member (225) may be introduced into the first hole. The first hole may be formed to have a curvature. The first hole may be formed in a U-shape when viewed from below. The first hole may include a curved shape when viewed from below.

[0204] The first metal member (225) may include a second hole. The second hole may be arranged adjacent to the wire (850). The second hole may be arranged adjacent to the hole through which the wire (850) passes. The second hole may be arranged adjacent to a conductive member that connects the wire (850) and the first metal member (225). The conductive member that connects the wire (850) and the first metal member (225) may be introduced into the second hole. The second hole may be arranged on the opposite side of the first hole with respect to the wire (850). The second hole may be arranged on the opposite side of the first hole with respect to the hole of the first metal member (225) through which the wire (850) is arranged. Solder that connects the wire (850) and the first metal member (225) may be introduced into the second hole. The second hole may be extended straightly.

[0205] The AF carrier (210) may include a second metal member (226). The holder member (220) may include a second metal member (226). The second metal member (226) may be a 'vertical metal member' arranged in a direction parallel to the optical axis. The second metal member (226) may be arranged in the holder member (220). The second metal member (226) may be insert-molded into the holder member (220). The second metal member (226) may be arranged to reinforce the strength of the holder member (220).

[0206] The AF carrier (210) may include a groove (227). The holder member (220) may include a groove (227). The groove (227) may be formed on an outer surface of the AF carrier (210). The groove (227) may be formed in a portion protruding outward from the AF carrier (210). A portion of the substrate (700) may be placed in the groove (227). A portion of the substrate (700) may be inserted into the groove (227). A bent portion (721) of the substrate (700) may be placed in the groove (227). A bent portion (721) of the substrate (700) may be inserted into the groove (227).

[0207] The lens actuator (10) may include a preload member (230). The AF carrier (210) may include the preload member (230). The preload member (230) may be coupled to the upper surface of the holder member (220). The preload member (230) may be coupled to the holder member (220). The preload member (230) may be inserted into and coupled to the holder member (220) from the upper side. The preload member (230) may pressurize the OIS guide ball (820). The preload member (230) may be in contact with the OIS guide ball (820). The preload member (230) may be in direct contact with the OIS guide ball (820). The preload member (230) may be coupled to the holder member (220) to pressurize the OIS guide ball (820). The preload member (230) can pressurize a part of the elastic member (830) by contacting the OIS guide ball (820).

[0208] The preload member (230) may be arranged between the AF moving part (200) and the base (110) in the optical axis direction. The preload member (230) may be arranged between the AF moving part (200) and the base (110). The preload member (230) may be arranged between the AF carrier (210) and the base (110).

[0209] The AF carrier (210) may include a protrusion (231). The preload member (230) may include a protrusion (231). The protrusion (231) may be a 'protrusion'. The preload member (230) may have a protrusion (231) that guides the OIS guide ball (820). The protrusion (231) may be coupled to a groove (222) of the holder member (220). The protrusion (231) of the preload member (230) may be inserted into the groove (222) of the holder member (220) from below. The protrusion (231) of the preload member (230) may be arranged in the groove (222) of the holder member (220). At least a portion of the protrusion (231) of the preload member (230) may be arranged in the groove (222) of the holder member (220). The protrusion (231) may include a plurality of protrusions. The protrusion (231) may include four protrusions.

[0210] The AF carrier (210) may include a groove (232). The preload member (230) may include a groove (232). The groove (232) may be an 'OIS guide ball receiving groove'. The groove (232) may be formed in the protrusion (231). The groove (232) may be formed on the upper surface of the protrusion (231). The groove (232) may be formed on the end of the protrusion (231). The groove (232) may be concavely formed on the upper surface of the protrusion (231). An OIS guide ball (820) may be arranged in the groove (232). The OIS guide ball (820) may come into contact with the groove (232).

[0211] The preload member (230) may include a body portion (233). The body portion (233) may be coupled to the holder member (220). The body portion (233) may be arranged on the lower surface of the holder member (220). The protrusion (231) may protrude upward from the body portion (233).

[0212] The lens actuator (10) may include a cover (240). The AF moving unit (200) may include a cover (240). The cover (240) may be coupled to the AF carrier (210). The cover (240) may be coupled to the upper surface of the AF carrier (210). The cover (240) may be coupled to the upper side of the AF carrier (210). The cover (240) may be coupled to the upper side of the holder member (220). The cover (240) may include a hook. The hook of the cover (240) may be coupled to the AF carrier (210). The hook of the cover (240) may protrude downward and be coupled to the side surface of the AF carrier (210).

[0213] The lens driving device (10) may include an OIS moving unit (300). The OIS moving unit (300) may be disposed on the fixed unit (100). The OIS moving unit (300) may be disposed within the fixed unit (100). The OIS moving unit (300) may be disposed on the fixed unit (100). The OIS moving unit (300) may be disposed within the AF moving unit (200). The OIS moving unit (300) may be disposed to be movable. The OIS moving unit (300) may move in a direction perpendicular to the optical axis with respect to the fixed unit (100) and the AF moving unit (200) by the OIS driving unit. The OIS moving unit (300) may move in the x-axis direction by the OIS-x driving unit (500). The OIS moving unit (300) can move in the y-axis direction by the OIS-y driving unit (600). The OIS moving unit (300) can move when the OIS is driven.

[0214] The OIS moving part (300) may include a first side and a second side which are arranged on opposite sides, and a third side and a fourth side which are arranged on opposite sides. The OIS-x magnet (510) may be arranged on the first side of the OIS moving part (300). The AF magnet (410) may be arranged on the third side of the OIS moving part (300) or may be arranged to face the third side. That is, the AF magnet (410) may be arranged at a position corresponding to the third side of the OIS moving part (300). The AF magnet (410) may be arranged closest to the third side among the first to fourth sides of the OIS moving part (300). The OIS-y magnet (610) may be arranged on the fourth side of the OIS moving part (300).

[0215] The lens driving device (10) may include an OIS carrier (310). The OIS moving unit (300) may include the OIS carrier (310). The OIS carrier (310) may be an 'OIS holder'. The OIS carrier (310) may be a 'bobbin'. The OIS carrier (310) may be placed inside the AF carrier (210). The OIS carrier (310) may be placed inside the base (110). The OIS carrier (310) may be placed on the base (110). The OIS carrier (310) may be placed inside the cover (120). The OIS carrier (310) may be placed so as to be movable in a direction perpendicular to the optical axis.

[0216] The OIS carrier (310) may include an outer side. The OIS carrier (310) may include a plurality of sides. The OIS carrier (310) may include a first side and a second side which are disposed opposite to each other, and a third side and a fourth side which are disposed opposite to each other. The AF coil (420) may be disposed between the first side of the OIS carrier (310) and the AF magnet (410). The OIS-x magnet (510) may be disposed on the third side of the OIS carrier (310). The OIS-y magnet (610) may be disposed on the second side of the OIS carrier (310).

[0217] The OIS carrier (310) may include a groove. The groove may be an 'elastic member interference prevention groove.' The groove may be formed on the upper surface of the OIS carrier (310). The groove may be formed concavely on the upper surface of the OIS carrier (310). The groove may be positioned at a position corresponding to the elastic member (830) to prevent interference between the OIS carrier (310) and the elastic member (830).

[0218] The OIS carrier (310) may include a groove (311). The groove (311) may be an 'OIS guide ball receiving groove'. An OIS guide ball (820) may be placed in the groove (311). The groove (311) may be in direct contact with the OIS guide ball (820). The groove (311) may be concavely formed on the lower surface of the OIS moving part (300). The groove (311) may be concavely formed on the lower surface of the OIS carrier (310). The groove (311) may be placed in a direction perpendicular to the optical axis. The groove (311) may be sunken in the optical axis direction. The groove (311) may include a plurality of grooves. The groove (311) may include four grooves. The groove (311) may be formed on the lower surface of the OIS carrier (310).

[0219] The OIS carrier (310) may include a lateral stopper. The lateral stopper may limit the lateral stroke of the OIS carrier (310). That is, when the OIS carrier (310) moves to its maximum, the lateral stopper of the OIS carrier (310) may contact at least one of the AF carrier (210) and the base (110). The lateral stopper may be formed on the outer surface of the OIS carrier (310). The lateral stopper may protrude outward from the side surface of the OIS carrier (310).

[0220] The OIS carrier (310) may include a protrusion (312). The protrusion (312) may be coupled with an elastic member (830). The protrusion (312) may be a 'coupling protrusion'. The elastic member (830) may include a hole into which the protrusion (312) of the OIS carrier (310) is inserted. The protrusion (312) may be formed on the upper surface of the OIS carrier (310).

[0221] The OIS carrier (310) may include a groove. The groove may be a "lens adhesive receiving groove." The groove may be formed on the inner surface of the OIS carrier (310). The groove may be concavely formed on the inner surface of the OIS carrier (310). An adhesive may be injected between the lens and the OIS carrier (310) through the groove. An adhesive for bonding the lens and the OIS carrier (310) may be placed in the groove.

[0222] The OIS carrier (310) may include a mounting portion. The mounting portion may be a 'magnet mounting portion.' A magnet (510, 620) may be placed in the mounting portion. For example, the mounting portion may be formed as a groove.

[0223] The lens driving device (10) may include a driving unit. The driving unit may move the moving unit relative to the fixed unit (100). The driving unit may include an AF driving unit (400). The driving unit may include an OIS driving unit. The driving unit may include an OIS-x driving unit (500). The driving unit may include an OIS-y driving unit (600). The driving unit may include a coil and a magnet.

[0224] The lens driving device (10) may include an AF driving unit (400). The AF driving unit (400) may move the AF moving unit (200) in the optical axis direction. The AF driving unit (400) may move the AF carrier (210) in the optical axis direction. The AF driving unit (400) may move the AF carrier (210) in the optical axis direction through electromagnetic force. The AF driving unit (400) may include a coil and a magnet.

[0225] The lens driving device (10) may include an AF magnet (410) and an AF coil (420) that move the AF moving unit (200) in the optical axis direction.

[0226] In the first embodiment of the present invention, the AF carrier (210) and the OIS carrier (310) can move in the optical axis direction by the interaction between the AF coil (420) and the AF magnet (410). The AF coil (420), the AF carrier (210), and the OIS carrier (310) can move in the optical axis direction as one unit.

[0227] The lens driving device (10) may include an AF magnet (410). The AF driving unit (400) may include an AF magnet (410). The AF magnet (410) may be an 'AF magnet'. The AF magnet (410) may be a permanent magnet. The AF magnet (410) may be placed on the fixing unit (100). The AF magnet (410) may be placed on the base (110). The AF magnet (410) may be placed on the cover (120). The AF magnet (410) may be placed on the side plate (122) of the cover (120). The AF magnet (410) may be placed on the outer surface of the base (110). The AF magnet (410) may be placed on the inner surface of the base (110). The AF magnet (410) can be fixed to the base (110). The AF magnet (410) can be coupled to the base (110). The AF magnet (410) can be bonded to the base (110) with an adhesive. The AF magnet (410) can be placed inside the cover (120). The AF magnet (410) can interact with the AF coil (420). The AF magnet (410) can electromagnetically interact with the AF coil (420). The AF magnet (410) can be placed at a position corresponding to the AF coil (420). The AF magnet (410) can face the AF coil (420). The AF magnet (410) can face the AF coil (420). The AF magnet (410) can overlap the AF coil (420) in a direction perpendicular to the optical axis.

[0228] The AF magnet (410) may be a four-pole magnet. The AF magnet (410) may include a four-pole magnetizing magnet. The AF magnet (410) may include a first magnet portion including a N pole and a S pole, and a second magnet portion including a N pole and a S pole. The first magnet portion and the second magnet portion may be arranged vertically. The first magnet portion and the second magnet portion may be spaced apart from each other in the vertical direction, and a neutral portion may be arranged between the first magnet portion and the second magnet portion.

[0229] The lens driving device (10) may include an AF coil (420). The AF driving unit (400) may include the AF coil (420). The AF coil (420) may interact with the AF magnet (410). The AF coil (420) may face the AF magnet (410). The AF coil (420) may be positioned at a position corresponding to the AF magnet (410). The AF coil (420) may overlap the AF magnet (410) in a direction perpendicular to the optical axis. The AF coil (420) may be positioned on the inner substrate (720). The AF coil (420) may be positioned on the AF carrier (210). The AF coil (420) can be placed in the AF moving part (200).

[0230] In the first embodiment of the present invention, the AF coil (420) can move in the optical axis direction. The AF coil (420) can move in the optical axis direction through interaction with the AF magnet (410) (see A of FIG. 32). The AF coil (420) can move together with the AF moving unit (200). The AF coil (420) can move in the optical axis direction together with the AF moving unit (200). During the AF driving process, the AF coil (420) can move in the optical axis direction together with the AF moving unit (200). The AF coil (420) can be placed on the AF moving unit (200). The AF coil (420) can be fixed to the AF moving unit (200). The AF coil (420) can be coupled to the AF moving unit (200).

[0231] The lens driving device (10) may include an AF sensor (430). The AF driving unit (400) may include an AF sensor (430). The AF sensor (430) may be a Hall sensor. The AF sensor (430) may be disposed on the inner substrate (720). The AF sensor (430) may detect the AF magnet (410). The AF sensor (430) may detect the movement of the AF magnet (410). The movement amount or position of the AF magnet (410) detected by the AF sensor (430) may be used for feedback of auto focus driving.

[0232] The AF sensor (430) may be a driver IC. The driver IC may include a sensing unit. The sensing unit may include a Hall element (Hall IC). The driver IC may be electrically connected to the AF coil (420). The driver IC may supply current to the AF coil (420).

[0233] The AF sensor (430) may be positioned within the AF coil (420). The AF sensor (430) may overlap the neutral portion of the AF magnet (410) in a direction perpendicular to the optical axis. Alternatively, the AF sensor (430) may be positioned on the outside of the AF coil (420). The AF sensor (430) may overlap the AF coil (420) in the direction of the optical axis. The AF sensor (430) may overlap the AF coil (420) in a direction perpendicular to the optical axis.

[0234] The lens driving device (10) may include an OIS driving unit. The OIS driving unit may move the OIS moving unit (300) in a direction perpendicular to the optical axis. The OIS driving unit may move the OIS carrier (310) in a direction perpendicular to the optical axis. The OIS driving unit may move the OIS carrier (310) in a direction perpendicular to the optical axis through electromagnetic force.

[0235] The lens driving device (10) may include an OIS-x driving unit (500). The OIS driving unit may include an OIS-x driving unit (500). The OIS-x driving unit (500) may move the OIS carrier (310) in the x-axis direction perpendicular to the optical axis. The OIS-x driving unit (500) may move the OIS carrier (310) in the x-axis direction perpendicular to the optical axis through electromagnetic force. The OIS-x driving unit (500) may include a coil and a magnet.

[0236] The lens driving device (10) may include an OIS-x magnet (510) and an OIS-x coil (520) that move the OIS moving unit (300) in the x-axis direction perpendicular to the optical axis direction.

[0237] In the first embodiment of the present invention, the OIS-x magnet (510) and the OIS-x coil (520) can move the OIS moving part (300) in a first direction perpendicular to the optical axis direction. At this time, the first direction may be the x-axis direction. The OIS carrier (310) can move in the x-axis direction perpendicular to the optical axis direction by the interaction between the OIS-x coil (520) and the OIS-x magnet (510). The OIS-x magnet (510) and the OIS carrier (310) can move in the x-axis direction as one unit.

[0238] The lens driving device (10) may include an OIS-x magnet (510). The OIS driving unit may include an OIS-x magnet (510). The OIS-x magnet (510) may be an 'OIS-x magnet'. The OIS-x magnet (510) may be a permanent magnet. The OIS-x magnet (510) may be arranged in the OIS moving unit (300). The OIS-x magnet (510) may be spaced apart from the AF magnet (410). The OIS-x magnet (510) may be arranged in the OIS carrier (310). The OIS-x magnet (510) may be arranged on the outer surface of the OIS carrier (310). The OIS-x magnet (510) may be fixed to the OIS carrier (310). The OIS-x magnet (510) can be coupled to the OIS carrier (310). The OIS-x magnet (510) can be bonded to the OIS carrier (310) with an adhesive. The OIS-x magnet (510) can be placed inside the cover (120). The OIS-x magnet (510) can interact with the OIS-x coil (520). The OIS-x magnet (510) can electromagnetically interact with the OIS-x coil (520). The OIS-x magnet (510) can be placed at a position corresponding to the OIS-x coil (520). The OIS-x magnet (510) can face the OIS-x coil (520). The OIS-x magnet (510) can face the OIS-x coil (520). The OIS-x magnet (510) can overlap with the OIS-x coil (520) in a direction perpendicular to the optical axis. The OIS-x magnet (510) can overlap with the OIS-x coil (520) in the x-axis direction. The OIS-x magnet (510) can move in the x-axis direction perpendicular to the optical axis.

[0239] The OIS-x magnet (510) can move in a pushing and pulling direction with the OIS-x coil (520) through interaction with the OIS-x coil (520).

[0240] The OIS-x magnet (510) may be a two-pole magnet. The OIS-x magnet (510) may include a two-pole magnetizing magnet. The OIS-x magnet (510) may include a N pole and a S pole.

[0241] The lens actuator (10) may include an OIS-x coil (520). The OIS actuator may include an OIS-x coil (520). The OIS-x coil (520) may interact with an OIS-x magnet (510). The OIS-x coil (520) may move the OIS-x magnet (510) in the x-axis direction perpendicular to the optical axis. The OIS-x coil (520) may move the OIS-x magnet (510) in the x-axis direction through interaction with the OIS-x magnet (510). The OIS-x coil (520) may face the OIS-x magnet (510). The OIS-x coil (520) may face the OIS-x magnet (510). The OIS-x coil (520) may be positioned corresponding to the OIS-x magnet (510). The OIS-x coil (520) may overlap the OIS-x magnet (510) in a direction perpendicular to the optical axis. The OIS-x coil (520) may be positioned on the inner substrate (720). The OIS-x coil (520) may be positioned on the AF carrier (210).

[0242] In the first embodiment of the present invention, the OIS-x coil (520) can move together with the AF moving unit (200). The OIS-x coil (520) can move in the optical axis direction together with the AF moving unit (200). During the AF driving process, the OIS-x coil (520) can move in the optical axis direction together with the AF moving unit (200). The OIS-x coil (520) can be placed on the AF moving unit (200). The OIS-x coil (520) can be fixed to the AF moving unit (200). The OIS-x coil (520) can be coupled to the AF moving unit (200).

[0243] When current is applied to the OIS-x coil (520), the OIS-x magnet (510) can move away from or closer to the OIS-x coil (520) in the x-axis direction.

[0244] The lens driving device (10) may include an OIS-x sensor (530). The OIS driving unit may include an OIS-x sensor (530). The OIS-x sensor (530) may be disposed on an inner substrate (720). The OIS-x sensor (530) may include a Hall sensor. The OIS-x sensor (530) may detect an OIS-x magnet (510). The OIS-x sensor (530) may detect the magnetic force of the OIS-x magnet (510). The OIS-x sensor (530) may be disposed on the lower side of the OIS-x magnet (510). The OIS-x sensor (530) may overlap with the OIS-x magnet (510) in the optical axis direction. As a variation, the OIS-x sensor (530) may be disposed within the OIS-x coil (520). The OIS-x sensor (530) may overlap the OIS-x coil (520) in the optical axis direction. The OIS-x sensor (530) may overlap the OIS-x coil (520) in a direction perpendicular to the optical axis. The OIS-x sensor (530) may face the OIS-x magnet (510). The OIS-x sensor (530) may be disposed at a position corresponding to the OIS-x magnet (510). The OIS-x sensor (530) may detect movement of the OIS-x magnet (510). The amount of movement or position of the OIS-x magnet (510) detected by the OIS-x sensor (530) may be used for feedback of the shake correction drive in the x-axis direction.

[0245] The lens driving device (10) may include an OIS-y driving unit (600). The OIS driving unit may include an OIS-y driving unit (600). The OIS-y driving unit (600) may move the OIS carrier (310) in the y-axis direction perpendicular to both the optical axis and the x-axis direction. The OIS-y driving unit (600) may move the OIS carrier (310) in the y-axis direction perpendicular to both the optical axis and the x-axis direction through electromagnetic force. The OIS-y driving unit (600) may include a coil and a magnet.

[0246] The lens driving device (10) may include an OIS-y magnet (610) and an OIS-y coil (620) that move the OIS moving unit (300) in the y-axis direction perpendicular to the optical axis direction and the x-axis direction.

[0247] In the first embodiment of the present invention, the OIS-y magnet (610) and the OIS-y coil (620) can move the OIS moving unit (300) in a second direction perpendicular to the optical axis direction and the first direction. At this time, the second direction may be the y-axis direction. By the interaction of the OIS-y coil (620) and the OIS-y magnet (610), the OIS carrier (310) can move in the y-axis direction perpendicular to both the optical axis direction and the x-axis direction. The OIS-y magnet (610) and the OIS carrier (310) can move integrally in the y-axis direction. The OIS-y magnet (610) can overlap with the AF magnet (410) in the second direction. The OIS-y magnet (610) can overlap with the AF magnet (410) in the y-axis direction.

[0248] The lens driving device (10) may include an OIS-y magnet (610). The OIS-y driving unit (600) may include an OIS-y magnet (610). The OIS-y magnet (610) may be an 'OIS-y magnet'. The OIS-y magnet (610) may be a permanent magnet. The OIS-y magnet (610) may be arranged in the OIS moving unit (300). The OIS-y magnet (610) may be spaced apart from the OIS-x magnet (510). The OIS-y magnet (610) may be spaced apart from the AF magnet (410). The OIS-y magnet (610) may be arranged in the OIS carrier (310). The OIS-y magnet (610) may be arranged on the outer surface of the OIS carrier (310). The OIS-y magnet (610) may be fixed to the OIS carrier (310). The OIS-y magnet (610) may be coupled to the OIS carrier (310). The OIS-y magnet (610) may be bonded to the OIS carrier (310) with an adhesive. The OIS-y magnet (610) may be arranged inside the cover (120). The OIS-y magnet (610) may interact with the OIS-y coil (620). The OIS-y magnet (610) may electromagnetically interact with the OIS-y coil (620). The OIS-y magnet (610) may be arranged at a position corresponding to the OIS-y coil (620). The OIS-y magnet (610) can face the OIS-y coil (620). The OIS-y magnet (610) can face the OIS-y coil (620). The OIS-y magnet (610) can overlap the OIS-y coil (620) in a direction perpendicular to the optical axis. The OIS-y magnet (610) can overlap the OIS-y coil (620) in the y-axis direction. The OIS-y magnet (610) can move in the y-axis direction.

[0249] The OIS-y magnet (610) can move in the pushing and pulling direction with the OIS-y coil (620) through interaction with the OIS-y coil (620).

[0250] The OIS-y magnet (610) may be a two-pole magnet. The OIS-y magnet (610) may include a two-pole magnetizing magnet. The OIS-y magnet (610) may include a N pole and a S pole.

[0251] The lens actuator (10) may include an OIS-y coil (620). The OIS-y actuator (600) may include the OIS-y coil (620). The OIS-y coil (620) may interact with the OIS-y magnet (610). The OIS-y coil (620) may be arranged on the opposite side of the AF coil (420) with respect to the optical axis. The OIS-y coil (620) may move the OIS-y magnet (610) in the y-axis direction, which is perpendicular to both the optical axis and the x-axis. The OIS-y coil (620) may move the OIS-y magnet (610) in the y-axis direction through interaction with the OIS-y magnet (610). The OIS-y coil (620) may face the OIS-y magnet (610). The OIS-y coil (620) may face the OIS-y magnet (610). The OIS-y coil (620) may be positioned corresponding to the OIS-y magnet (610). The OIS-y coil (620) may overlap the OIS-y magnet (610) in a direction perpendicular to the optical axis. The OIS-y coil (620) may be positioned on the inner substrate (720). The OIS-y coil (620) may be positioned on the AF carrier (210).

[0252] In the first embodiment of the present invention, the OIS-y coil (620) can move together with the AF moving unit (200). The OIS-y coil (620) can move in the optical axis direction together with the AF moving unit (200). During the AF driving process, the OIS-y coil (620) can move in the optical axis direction together with the AF moving unit (200). The OIS-y coil (620) can be placed on the AF moving unit (200). The OIS-y coil (620) can be fixed to the AF moving unit (200). The OIS-y coil (620) can be coupled to the AF moving unit (200).

[0253] When current is applied to the OIS-y coil (620), the OIS-y magnet (610) can move away from or closer to the OIS-y coil (620) in the y-axis direction.

[0254] The lens driving device (10) may include an OIS-y sensor (630). The OIS-y driving unit (600) may include the OIS-y sensor (630). The OIS-y sensor (630) may be disposed on the inner substrate (720). The OIS-y sensor (630) may include a Hall sensor. The OIS-y sensor (630) may detect the OIS-y magnet (610). The OIS-y sensor (630) may detect the magnetic force of the OIS-y magnet (610). The OIS-y sensor (630) may be disposed on the lower side of the OIS-y magnet (610). The OIS-y sensor (630) may overlap with the OIS-y magnet (610) in the optical axis direction. The OIS-y sensor (630) may overlap the OIS-y magnet (610) in a direction perpendicular to the optical axis. As a variation, the OIS-y sensor (630) may be disposed within the OIS-y coil (620). The OIS-y sensor (630) may overlap the OIS-y coil (620) in the optical axis direction. The OIS-y sensor (630) may face the OIS-y magnet (610). The OIS-y sensor (630) may be disposed at a position corresponding to the OIS-y magnet (610). The OIS-y sensor (630) may detect the movement of the OIS-y magnet (610). The movement amount or position of the OIS-y magnet (610) detected by the OIS-y sensor (630) may be used for feedback of the shake correction drive in the y-axis direction.

[0255] When viewed from above, the AF magnet (410), the AF coil (420), the OIS-y magnet (610), and the OIS-y coil (620) can be arranged in order on an imaginary straight line. When viewed from the top, the AF magnet (410), the AF coil (420), the OIS-y magnet (610), and the OIS-y coil (620) can be arranged in order on an imaginary straight line. When viewed from above, the AF magnet (410), the AF coil (420), the OIS-y magnet (610), and the OIS-y coil (620) can be arranged in order. When viewed from above, the AF magnet (410), the AF coil (420), the OIS-y magnet (610), and the OIS-y coil (620) can be arranged in order in the y-axis direction. When viewed from above, the AF magnet (410), the AF coil (420), the OIS-y magnet (610), and the OIS-y coil (620) can overlap in the y-axis direction.

[0256] The lens actuator (10) may include a substrate (700). The substrate (700) may include a flexible printed circuit board (FPCB). The substrate (700) may be electrically connected to coils (420, 520, 620). The substrate (700) may be electrically connected to sensors (430, 530, 630).

[0257] The substrate (700) may include an outer portion (710). The outer portion (710) may be disposed on the base (110). The outer portion (710) may be disposed on one side of the base (110). The outer portion (710) may include two terminal portions. The two terminal portions may be disposed together on one side of the base (110). The terminal portion may include a terminal (711).

[0258] The substrate (700) may include a terminal (711). The outer portion (710) may include the terminal (711). The terminal (711) may be disposed at the lower end of the base (110). The terminal (711) may be coupled to a printed circuit board (50). The terminal (711) may be coupled to a terminal of the printed circuit board (50) via solder. The terminal (711) may be coupled to a terminal of the printed circuit board (50) via a conductive member. The terminal (711) may be connected to a terminal of the printed circuit board (50). The terminal (711) may be electrically connected to a terminal of the printed circuit board (50). The terminal (711) may be disposed on only one of the four sides of the base (110). Alternatively, the terminal (711) may be positioned on any two of the four sides of the base (110).

[0259] The substrate (700) may include a connecting portion (720). The connecting portion (720) may be an 'extension portion'. The connecting portion (720) may be a 'leg portion'. The connecting portion (720) may extend from the outer portion (710). At least a portion of the connecting portion (720) may move together with the AF carrier (210). The extending portion may extend from the outer portion (710). At least a portion of the extending portion may move together with the AF carrier (210). At least a portion of the connecting portion (720) may be arranged perpendicular to the optical axis direction. The connecting portion (720) of the substrate (700) may connect the outer portion (710) and the lower plate (730). Alternatively, the connecting portion (720) of the substrate (700) may connect the outer portion (710) and the side plate (740). That is, the connecting portion (720) of the substrate (700) can connect the outer portion (710) disposed on the fixed portion (100) and the inner portion disposed on the AF moving portion (200). At least a portion of the connecting portion (720) can be disposed parallel to the optical axis direction.

[0260] The connecting portion (720) may include a bend portion (721). The bend portion (721) may include a bended shape. The bend portion (721) may be bent twice. The bend portion (721) may include a rounded shape. The bend portion (721) may be coupled to the AF carrier (210). The bend portion (721) may be arranged in a groove (227) of the AF carrier (210).

[0261] The connecting portion (720) may include a first connecting portion and a second connecting portion. The second connecting portion may be positioned below the first connecting portion. The second connecting portion and the first connecting portion may be connected via a bending portion (721).

[0262] The substrate (700) may include an inner portion. The inner portion may be placed on the AF carrier (210). The inner portion may be coupled to the AF carrier (210). The inner portion may move together with the AF carrier (210). The inner portion may include a lower portion (730) coupled to the lower surface of the AF carrier (210) and a side portion (740) coupled to the side surface of the AF carrier (210).

[0263] The substrate (700) may include a lower plate (730). The lower plate (730) may be disposed on the lower surface of the AF carrier (210). The lower plate (730) may be coupled to the lower surface of the AF carrier (210). The lower plate (730) may be disposed on the lower surface of the holder member (220). The lower plate (730) may be coupled to the lower surface of the holder member (220). The lower plate (730) may be disposed between the holder member (220) and the preload member (230). The lower plate (730) may be connected to the connecting portion (720). An OIS-x sensor (530) and an OIS-y sensor (630) may be disposed on the lower surface of the holder member (220).

[0264] The substrate (700) may include a side plate (740). The side plate (740) may be disposed on a side of the AF carrier (210). The side plate (740) may be coupled to the side of the AF carrier (210). Coils (420, 520, 620) may be disposed on the side plate (740). An AF sensor (430) may be disposed on the side plate (740). The side plate (740) may extend upward from the lower plate (730). The side plate (740) may be bent from the lower plate (730). The side plate (740) may include a first portion where the AF coil (420) is disposed. The side plate (740) may include a second portion where the OIS-x coil (520) is disposed. The side plate (740) may include a third portion in which the OIS-y coil (620) is arranged. The first portion and the third portion may be arranged on opposite sides.

[0265] In the first embodiment of the present invention, the substrate (700) may be formed integrally. That is, the outer portion (710), the connecting portion (720), the lower portion (730), and the side portion (740) may all be formed integrally as a single substrate. The substrate (700) has the advantage of being relatively easy to assemble, as it has a structure in which the connecting portion (720) is inserted into the AF carrier (210) and fastened.

[0266] The lens driving device (10) may include an AF guide ball (810). The AF guide ball (810) may guide the movement of the AF moving unit (200) with respect to the fixed unit (100) in the optical axis direction. The AF guide ball (810) may guide the movement of the AF carrier (210) with respect to the base (110) in the optical axis direction. The AF guide ball (810) may be arranged between the fixed unit (100) and the AF moving unit (200). The AF guide ball (810) may be arranged between the base (110) and the AF carrier (210). The AF guide ball (810) may be arranged between the housing and the base (110). The AF guide ball (810) may be arranged between the base (110) and the AF carrier (210) in the x direction. Alternatively, the AF guide ball (810) may be placed between the base (110) and the AF carrier (210) in the y direction. The AF guide ball (810) may be placed in a groove of the base (110). The AF guide ball (810) may be placed in a groove of the AF carrier (210). The AF guide ball (810) may be spherical. The AF guide ball (810) may be formed of metal. Grease may be applied to the surface of the AF guide ball (810).

[0267] The base (110) may include a first corner region and a second corner region that are arranged diagonally from each other, and a third corner region and a fourth corner region that are arranged diagonally from each other. The AF guide ball (810) may be arranged in the first corner region and the third corner region of the base (110).

[0268] The AF guide ball (810) can move along a rail formed between the base (110) and the AF carrier (210). The AF guide ball (810) can move along a rail formed in the optical axis direction between the base (110) and the AF carrier (210). The rail may be formed in the optical axis direction. The rail may include a first rail formed by an inner groove (111-1) of the base (110) and an inner groove (224-1) of the AF carrier (210), and a second rail formed by an outer groove (112-1) of the base (110) and an outer groove (224-2) of the AF carrier (210). A protrusion (132) of a stopper member (130) may be arranged on the upper side of each of the first rail and the second rail. Through this, the phenomenon of the AF guide ball (810) being separated upward from the first rail and the second rail can be prevented.

[0269] The AF guide ball (810) may include a first ball (816) having a first diameter and a second ball (817) having a second diameter smaller than the first diameter. That is, the diameter of the second ball (817) may be smaller than the diameter of the first ball (816). The AF guide ball (810) may include balls having different diameters.

[0270] The length of the protrusion (132) of the stopper member (130) in the optical axis direction (see L1 in FIG. 6) may be greater than the diameter of the first ball (816) (see L2 in FIG. 6). The diameter of the first ball (816) may be 85% to 95% of the length of the protrusion (132) of the stopper member (130) in the optical axis direction. The diameter of the first ball (816) may be 83% to 97% of the length of the protrusion (132) of the stopper member (130) in the optical axis direction. At this time, the length of the protrusion (132) of the stopper member (130) in the optical axis direction may be the length protruding from the body portion (131). The length of the protrusion (132) of the stopper member (130) in the optical axis direction may be a length extending downward from the upper surface of the upper plate (121) of the cover (120).

[0271] The diameter of the second ball (817) (see L3 in FIG. 6) may be 75% to 85% of the length of the protrusion (132) of the stopper member (130) in the optical axis direction. The diameter of the second ball (817) may be 70% to 90% of the length of the protrusion (132) of the stopper member (130) in the optical axis direction.

[0272] A cross-section perpendicular to the optical axis of the protrusion (132) of the stopper member (130) may be circular with a third diameter. At this time, the third diameter of the protrusion (132) of the stopper member (130) may be smaller than the second diameter of the second ball (817). The third diameter of the protrusion (132) of the stopper member (130) may be 70% to 80% of the second diameter of the second ball (817). The third diameter of the protrusion (132) of the stopper member (130) may be 65% to 85% of the second diameter of the second ball (817).

[0273] As a variation, the plurality of balls of the AF guide ball (810) may all have the same diameter. In this case, the length of the protrusion (132) of the stopper member (130) in the optical axis direction may be greater than the diameter of the balls.

[0274] The AF guide ball (810) may include an inner ball (811). The inner ball (811) may be placed on the column portion (111) of the base (110). The inner ball (811) may be placed in the inner groove (111-1) of the base (110). The inner ball (811) may be placed in the inner groove (224-1) of the AF carrier (210). The inner ball (811) may be placed in the inner groove (224-1) of the AF moving unit (200). The inner ball (811) may be placed in the inner groove (111-1) of the base (110) and the inner groove (224-1) of the AF carrier (210). The inner ball (811) can be placed between the inner groove (111-1) of the base (110) and the inner groove (224-1) of the AF carrier (210). The inner ball (811) can be placed between the AF moving part (200) and the pillar part (111) of the fixed part (100).

[0275] The AF guide ball (810) may include an outer ball (812). The outer ball (812) may be disposed on the outer wall (112) of the base (110). The outer ball (812) may be disposed in the outer groove (112-1) of the base (110). The outer ball (812) may be disposed in the outer groove (224-2) of the AF carrier (210). The outer ball (812) may be disposed in the outer groove (112-1) of the base (110) and the outer groove (224-2) of the AF carrier (210). The outer ball (812) may be disposed between the outer groove (112-1) of the base (110) and the outer groove (224-2) of the AF carrier (210). The outer ball (812) can be placed between the outer groove (112-1) of the fixed part (100) and the outer groove (224-2) of the AF moving part (200). The outer ball (812) can be placed between the AF moving part (200) and the outer wall part (112) of the fixed part (100).

[0276] The lens actuator (10) may include an OIS guide ball (820). The OIS guide ball (820) may guide the movement of the OIS carrier (310) relative to the AF carrier (210) in a direction perpendicular to the optical axis. The OIS guide ball (820) may be arranged between the AF moving unit (200) and the OIS moving unit (300). The OIS guide ball (820) may be arranged between the AF carrier (210) and the OIS carrier (310). The OIS guide ball (820) may be arranged between the AF carrier (210) and the lower side of the OIS carrier (310). The OIS guide ball (820) may be arranged between the housing and the bobbin. The OIS guide ball (820) may be arranged between the housing and the lower side of the bobbin. The OIS guide ball (820) can be placed between the AF carrier (210) and the OIS carrier (310) in the optical axis direction.

[0277] The OIS guide ball (820) may be placed in the protrusion (231) of the preload member (230). The OIS guide ball (820) may be placed in the groove (232) of the protrusion (231). The OIS guide ball (820) may be placed in the groove (311) of the OIS moving unit (300). The OIS guide ball (820) may be placed between the groove (232) of the protrusion (231) of the AF moving unit (200) and the groove (311) of the OIS moving unit (300).

[0278] The OIS guide ball (820) may be placed between the preload member (230) of the AF carrier (210) and the OIS carrier (310). The OIS guide ball (820) may be pressed between the AF carrier (210) and the OIS carrier (310) by the pressing force of the elastic member (830, 850). The preload member (230) may press the OIS guide ball (820) upward during the process of being coupled to the holder member (220). The preload member (230) may press the OIS guide ball (820) toward the OIS carrier (310) during the process of being coupled to the holder member (220). At this time, the OIS carrier (310) can pressurize the OIS guide ball (820) toward the preload member (230) by the restoring force of the elastic member (830, 850). Therefore, the OIS guide ball (820) can be pressed between the preload member (230) and the OIS carrier (310).

[0279] The OIS guide ball (820) can guide the OIS moving unit (300) to move in the x-axis direction and the y-axis direction. The OIS guide ball (820) can guide the movement of the OIS moving unit (300) in the x-axis direction and the y-axis direction. The OIS guide ball (820) can guide the OIS carrier (310) to move in the x-axis direction and the y-axis direction which are perpendicular to the optical axis direction with respect to the AF carrier (210). That is, the OIS guide ball (820) can guide the OIS carrier (310) to move in the x-axis direction and the y-axis direction. In other words, the OIS guide ball (820) can guide the movement in both the x-axis direction and the y-axis direction. For reference, in the first embodiment of the present invention in which the ball guiding the x-axis direction and the ball guiding the y-axis direction are provided as a single unit, the size of the lens driving device (10) can be minimized compared to the comparative example in which the ball guiding the x-axis direction and the ball guiding the y-axis direction are provided separately. In particular, the height of the lens driving device (10) in the optical axis direction can be reduced. Through this, the height protruding from the smartphone, i.e., the shoulder height, can be minimized. The OIS guide ball (820) may include a plurality of balls. The OIS guide ball (820) may include four balls.

[0280] As a variation, the OIS guide ball (820) may be provided with a separate ball that guides the x-axis direction drive and a ball that guides the y-axis direction drive.

[0281] The lens driving device (10) may include an elastic member. The elastic member may be formed to support OIS driving. The elastic member may support the movement of the OIS moving unit (300). The elastic member may be formed to pressurize the OIS guide ball (820). The elastic member may be formed to guide both the OIS-x-axis driving and the OIS-y-axis driving with only the OIS guide ball (820). The elastic member may include a plate spring. The elastic member may include a wire. The elastic member may have elasticity. The elastic member may be formed of metal.

[0282] The elastic member can pressurize the OIS guide ball (820) between the AF moving unit (200) and the OIS moving unit (300). The elastic member can pressurize the OIS moving unit (300) toward the AF moving unit (200). The elastic member can pressurize the OIS moving unit (300) toward the OIS moving unit (300). At this time, the elastic member can include an elastic member (830) and a wire (850).

[0283] The lens actuator (10) may include an elastic member (830). The elastic member (830) may be an 'upper elastic member'. The elastic member (830) may be an 'upper spring'. The elastic member (830) may be a plate spring. The elastic member (830) may have elasticity. The elastic member (830) may be arranged on the OIS moving unit (300). The elastic member (830) may be coupled to the OIS moving unit (300). The elastic member (830) may be connected to the OIS moving unit (300). The elastic member (830) may be coupled to the upper surface of the OIS moving unit (300). The elastic member (830) may be arranged on the upper surface of the OIS moving unit (300). The elastic member (830) may be placed on the upper portion of the OIS carrier (310). The elastic member (830) may be placed on the OIS carrier (310). The elastic member (830) may be placed on the upper portion of the OIS carrier (310). The elastic member (830) may be placed on top of the OIS carrier (310). The elastic member (830) may be placed perpendicular to the optical axis.

[0284] The elastic member (830) may include an inner portion (831). The inner portion (831) may be coupled with the OIS moving portion (300). The elastic member (830) may include an outer portion (832). The outer portion (832) may be coupled with a wire (850). The elastic member (830) may include a connecting portion (833). The connecting portion (833) may connect the inner portion (831) and the outer portion (832). The connecting portion (833) may elastically connect the inner portion (831) and the outer portion (832). The connecting portion (833) may include elasticity. The connecting portion (833) may be an elastic portion. The connecting portion (833) may be a 'leg portion'.

[0285] The inner part (831) of the elastic member (830) may be positioned higher than the outer part (832). The inner part (831) of the elastic member (830) may be positioned higher than the outer part (832). The inner part (831) of the elastic member (830) may be positioned higher than the outer part (832) by a first distance. The reason why the inner part (831) of the elastic member (830) is positioned higher than the outer part (832) may be due to the pressing force of the preload member (230). Through this structure, the OIS guide ball (820) may be maintained in contact with the preload member (230) of the AF carrier (210) and the OIS carrier (310).

[0286] The OIS carrier (310) may include a first region coupled with the elastic member (830). The wire (850) may include a second region coupled with the elastic member (830). The first region of the OIS carrier (310) may be positioned above the second region of the wire (850). The first region of the OIS carrier (310) may be positioned above the second region of the wire (850) by 0.2 to 0.6 mm. The first region of the OIS carrier (310) may be positioned above the second region of the wire (850) by 0.3 to 0.5 mm.

[0287] The lens actuator (10) may include a wire (850). The wire (850) may be a 'side elastic member'. The wire (850) may be a wire. The wire (850) may be a wire spring. The wire (850) may be a suspension wire. The wire (850) may have elasticity. The wire (850) may connect the elastic member (830) and the AF carrier (210). The wire (850) may connect the elastic member (830) and the lower side of the AF carrier (210). The wire (850) may connect the elastic member (830) and the housing. The wire (850) may connect the elastic member (830) and the lower side of the housing. The wire (850) may elastically connect the elastic member (830) and the AF carrier (210). The wire (850) can connect the elastic member (830) and the first metal member (225) of the AF carrier (210). The wire (850) can elastically connect the elastic member (830) and the first metal member (225) of the AF carrier (210). The wire (850) can be arranged parallel to the optical axis. The wire (850) can be arranged in the direction of the optical axis.

[0288] The upper part of the wire (850) can be coupled with the elastic member (830). The first part of the wire (850) can be coupled with the elastic member (830). The lower part of the wire (850) can be coupled with the AF moving part (200). The lower part of the wire (850) can be coupled with the lower surface of the AF moving part (200). The second part of the wire (850) can be coupled with the AF moving part (200). The lower part of the wire (850) can be coupled with the AF carrier (210). The lower part of the wire (850) can be coupled with the holder member (220). The lower part of the wire (850) can be coupled with the first metal member (225). The lower part of the wire (850) can be soldered to the first metal member (225). The lower end of the wire (850) can be welded to the first metal member (225). The lower end of the wire (850) can be bonded to the first metal member (225) by conductive epoxy. The lower end of the wire (850) can be bonded to the first metal member (225) by a conductive material. The lower end of the wire (850) can be directly bonded to the first metal member (225). The wire (850) can connect the elastic member (830) and the AF moving unit (200). The wire (850) can connect the elastic member (830) and the AF carrier (210). The wire (850) can connect the elastic member (830) and the holder member (220). The wire (850) can connect the elastic member (830) and the first metal member (225).

[0289] The lens actuator (10) may include a pressing member. The pressing member may be an 'AF guide ball pressing member'. The pressing member may pressurize the AF guide ball (810). The pressing member may be formed to pressurize the ball. The AF guide ball (810) pressed by the pressing member may be sandwiched between the fixed part (100) and the AF moving part (200). The AF guide ball (810) pressed by the pressing member may be sandwiched between the base (110) and the AF carrier (210). The pressing member may allow the AF guide ball (810) to be maintained in contact with the fixed part (100) and the AF moving part (200). The pressing member may allow the AF guide ball (810) to be maintained in contact with the base (110) and the AF carrier (210).

[0290] The lens actuator (10) may include a plate member (910). The pressing member may include the plate member (910). The plate member (910) may be disposed on the AF guide ball (810). The plate member (910) may contact the AF guide ball (810). The plate member (910) may be disposed on the elastic member (920). The plate member (910) may be disposed on the base (110). The plate member (910) may be disposed between the elastic member (920) and the AF guide ball (810). The plate member (910) may press the AF guide ball (810) toward the AF carrier (210) by the elastic member (920). The plate member (910) may be disposed between the AF guide ball (810) and the fixing member (100). The plate member (910) can be placed between the inner ball (811) and the pillar member (111) of the fixed member (100).

[0291] The lens actuator (10) may include an elastic member (920). The pressing member may include an elastic member (920). The elastic member (920) may be a spring. The elastic member (920) may be a tapered spring. The elastic member (920) may be disposed on the fixed portion (100). The elastic member (920) may press the AF guide ball (810) toward the AF moving portion (200). The elastic member (920) may press the plate member (910) toward the AF guide ball (810). The elastic member (920) may be disposed between the plate member (910) and the fixed portion (100). The elastic member (920) may push the plate member (910) against the fixed portion (100). The elastic member (920) can press the plate member (910) in the opposite direction of the fixed part (100). The elastic member (920) can be arranged between the plate member (910) and the pillar part (111) of the fixed part (100). The elastic member (920) can be arranged in the inner groove (111-1) of the fixed part (100). The elastic member (920) can press the AF guide ball (810) between the fixed part (100) and the AF moving part (200). The elastic member (920) can press the AF guide ball (810) so that it comes into close contact with the base (110) and the AF carrier (210).

[0292] As a variation, the elastic member (920) may be disposed on the AF moving unit (200). At this time, the elastic member (920) may press the AF guide ball (810) toward the fixed unit (100). The elastic member (920) may be disposed on one of the fixed unit (100) and the AF moving unit (200) to press the AF guide ball (810) toward the other of the fixed unit (100) and the AF moving unit (200). The elastic member (920) may press the plate member (910). The elastic member (920) may be disposed between the plate member (910) and the base (110). The elastic member (920) may be disposed between the AF guide ball (810) and the base (110). The elastic member (920) may be disposed on the base (110). The elastic member (920) can be placed in the inner groove (111-1) of the base (110). The elastic member (920) can press the AF guide ball (810) toward the AF carrier (210). Through this, the AF guide ball (810) can be maintained in contact with the plate member (910) and the AF carrier (210).

[0293] The elastic member (920) may include a bent portion. The bent portion may include a bent shape. The bent portion may include a plurality of bent portions. The bent portion may include three bent portions. The elastic member (920) may be bent at least three times. The elastic member (920) may include an upper bent portion (921). The elastic member (920) may include a lower bent portion (922). The elastic member (920) may include a connecting bent portion (923). The connecting bent portion (923) may be arranged between the upper bent portion (921) and the lower bent portion (922). The upper bent portion (921) may form an obtuse angle. The lower bent portion (922) may form an obtuse angle. The connecting bent portion (923) may form an obtuse angle. The upper bending portion (921) may be placed on the fixed portion (100). The lower bending portion (922) may be placed on the fixed portion (100). The connecting bending portion (923) may be placed on the plate member (910). Through this structure, the elastic member (920) may push the plate member (910) against the fixed portion (100). The connecting bending portion (923) may contact the plate member (910) and press the plate member (910) toward the AF guide ball (810).

[0294] The height of the point where the elastic member (920) presses the plate member (910) may be lower than the height of the ball that is positioned lower between the inner uppermost ball (811-1) and the outer uppermost ball (812-1) and higher than the height of the ball that is positioned higher between the inner lowermost ball (811-2) and the outer lowermost ball (812-2). More specifically, as shown in (a) of FIG. 44, when the AF moving unit (200) moves upward, the height (b) of the point where the elastic member (920) presses the plate member (910) may be higher than the height (a) of the ball that is positioned higher between the inner lowermost ball (422) and the outer lowermost ball (412). A gap (c) may exist in the height between the two points. In addition, when the AF moving part (200) moves downward as in (b) of FIG. 44, the height (e) of the point where the elastic member (920) presses the plate member (910) may be lower than the height (d) of the ball that is positioned lower between the inner uppermost ball (421) and the outer uppermost ball (411). A gap (f) may exist between the two points. Through this, the generation of a moment generated as the elastic member (920) presses the plate member (910) can be prevented or minimized. In other words, the phenomenon of the plate member (910) tilting or being detached can be prevented.

[0295] The lens driving device (10) may include a reinforcing member (930). The reinforcing member (930) may be disposed on the base (110). The reinforcing member (930) may be disposed to reinforce the strength of the base (110). The reinforcing member (930) may prevent damage to the base (110). The reinforcing member (930) may prevent damage to the column portion (111) of the base (110). The reinforcing member (930) may prevent damage to the outer wall portion (112) of the base (110). The reinforcing member (930) may have elasticity. The reinforcing member (930) may be formed of metal. The reinforcing member (930) may include a shape that is bent at least twice. The reinforcing member (930) may be formed in a 'ㄷ' shape when viewed from above. The reinforcing member (930) can be opened inward.

[0296] The reinforcing member (930) may include an inner portion (931). The inner portion (931) may be arranged on an opposite surface of the inner groove (111-1) of the column portion (111) of the fixed portion (100). The reinforcing member (930) may include an outer portion (932). The outer portion (932) may be arranged on an opposite surface of the outer groove (112-1) of the outer wall portion (112) of the fixed portion (100). The reinforcing member (930) may include a connecting portion (933). The connecting portion (933) may connect the inner portion (931) and the outer portion (932).

[0297]

[0298] Hereinafter, the auto focus (AF) operation of the lens driving device according to the first embodiment of the present invention will be described with reference to the drawings.

[0299] Figures 30 to 32 are drawings for explaining the auto focus driving of the lens driving device according to the first embodiment of the present invention. Figure 30 is a cross-sectional view showing the appearance of the moving part in the initial state where no current is applied to the AF coil. Figure 31 is a cross-sectional view showing the appearance where the moving part moves upward in the optical axis direction when a forward current is applied to the AF coil. Figure 32 is a cross-sectional view showing the appearance where the moving part moves downward in the optical axis direction when a reverse current is applied to the AF coil.

[0300] As illustrated in Fig. 30, the moving part may be positioned at a position spaced apart from both the upper plate (121) of the cover (120) and the base (110) in the initial position where no current is applied to the AF coil (420). At this time, the moving part may be the AF moving part (200). In addition, the moving part may include the AF moving part (200) and the OIS moving part (300).

[0301] When a positive current is applied to the AF coil (420), the AF coil (420) can move upward in the optical axis direction due to the electromagnetic interaction between the AF coil (420) and the AF magnet (410) (see A of FIG. 31). At this time, the AF carrier (210) can move upward in the optical axis direction together with the AF coil (420). Furthermore, the OIS carrier (310) and the lens can move upward in the optical axis direction together with the AF carrier (210). Accordingly, the distance between the lens and the image sensor (60) can be changed, so that the focus of the image formed on the image sensor (60) through the lens can be adjusted.

[0302] When a reverse current is applied to the AF coil (420), the AF coil (420) can move downward in the optical axis direction due to the electromagnetic interaction between the AF coil (420) and the AF magnet (410) (see B of FIG. 32). At this time, the AF carrier (210) can move downward in the optical axis direction together with the AF coil (420). Furthermore, the OIS carrier (310) and the lens can move downward in the optical axis direction together with the AF carrier (210). Accordingly, the distance between the lens and the image sensor (60) can be changed, so that the focus of the image formed on the image sensor (60) through the lens can be adjusted.

[0303] Meanwhile, during the movement of the AF coil (420), the AF sensor (430) moves together with the AF coil (420) and detects the strength of the magnetic field of the AF magnet (410) to detect the amount of movement or position of the lens in the optical axis direction. The amount of movement or position of the lens in the optical axis direction detected by the AF sensor (430) can be used for auto focus feedback control.

[0304]

[0305] Hereinafter, the optical image stabilization (OIS) operation of the lens driving device according to the first embodiment of the present invention will be described with reference to the drawings.

[0306] FIGS. 33 to 35 are diagrams for explaining the shake correction drive of the lens drive device according to the first embodiment of the present invention. FIG. 33 is a cross-sectional view showing the appearance of the OIS moving part in the initial state where no current is applied to the OIS-x coil and the OIS-y coil. FIG. 34 is a cross-sectional view showing the appearance where the OIS moving part moves in the x-axis direction perpendicular to the optical axis when current is applied to the OIS-x coil. FIG. 35 is a cross-sectional view showing the appearance where the OIS moving part moves in the y-axis direction perpendicular to both the optical axis and the x-axis when current is applied to the OIS-y coil.

[0307] As illustrated in Fig. 33, the moving part can be placed in the initial position without current being applied to the OIS-x coil (520) and the OIS-y coil (620). At this time, the moving part can be the OIS moving part (300).

[0308] When current is applied to the OIS-x coil (520), the OIS-x magnet (510) can move in the x-axis direction perpendicular to the optical axis due to the electromagnetic interaction between the OIS-x coil (520) and the OIS-x magnet (510) (see A of FIG. 34). At this time, the OIS carrier (310) can move in the x-axis direction together with the OIS-x magnet (510). Furthermore, the lens can move in the x-axis direction together with the OIS carrier (310). More specifically, when a positive current is applied to the OIS-x coil (520), the OIS-x magnet (510), the OIS carrier (310), and the lens can move in one direction on the x-axis. Additionally, when reverse current is applied to the OIS-x coil (520), the OIS-x magnet (510), the OIS carrier (310), and the lens can move in the other direction along the x-axis.

[0309] When current is applied to the OIS-y coil (620), the OIS-y magnet (610) can move in the y-axis direction perpendicular to the optical axis due to the electromagnetic interaction between the OIS-y coil (620) and the OIS-y magnet (610) (see B of FIG. 35). At this time, the OIS carrier (310) can move in the y-axis direction together with the OIS-y magnet (610). Furthermore, the lens can move in the y-axis direction together with the OIS carrier (310). More specifically, when a positive current is applied to the OIS-y coil (620), the OIS-y magnet (610), the OIS carrier (310), and the lens can move in one direction on the y-axis. Additionally, when a reverse current is applied to the OIS-y coil (620), the OIS-y magnet (610), the OIS carrier (310), and the lens can move in the other direction along the y-axis.

[0310] Meanwhile, the OIS-x sensor (530) can detect the strength of the magnetic field of the OIS-x magnet (510) to detect the amount of movement or position of the OIS-x magnet (510). The amount of movement or position detected by the OIS-x sensor (530) can be used for x-axis direction shake correction feedback control. The OIS-y sensor (630) can detect the strength of the magnetic field of the OIS-y magnet (610) to detect the amount of movement or position of the OIS-y magnet (610). The amount of movement or position detected by the OIS-y sensor (630) can be used for y-axis direction shake correction feedback control.

[0311]

[0312] Hereinafter, a camera device according to a first embodiment of the present invention will be described with reference to the drawings.

[0313] Figure 36 is an exploded perspective view of a camera device according to a first embodiment of the present invention.

[0314] The camera device (10A) may include a camera module.

[0315] The camera device (10A) may include a lens module (20). The lens module (20) may include at least one lens. The lens may be positioned corresponding to the image sensor (60). The lens module (20) may include a lens and a barrel. The lens module (20) may be coupled to the OIS carrier (310) of the lens driving device (10). The lens module (20) may be coupled to the OIS carrier (310) by screw coupling and / or adhesive. The lens module (20) may move integrally with the OIS carrier (310).

[0316] The camera device (10A) may include a filter (30). The filter (30) may block light of a specific frequency band from passing through the lens module (20) from being incident on the image sensor (60). The filter (30) may be arranged parallel to the xy plane. The filter (30) may be arranged between the lens module (20) and the image sensor (60). The filter (30) may be arranged on the sensor base (40). Alternatively, the filter (30) may be arranged on the base (110). The filter (30) may include an infrared filter. The infrared filter may block light in the infrared region from being incident on the image sensor (60).

[0317] The camera device (10A) may include a sensor base (40). The sensor base (40) may be disposed between the lens actuator (10) and the printed circuit board (50). The sensor base (40) may include a protrusion (41) on which a filter (30) is disposed. An opening may be formed in a portion of the sensor base (40) on which the filter (30) is disposed so that light passing through the filter (30) may be incident on the image sensor (60). The adhesive member may couple or adhere the base (110) of the lens actuator (10) to the sensor base (40). The adhesive member may additionally serve to prevent foreign substances from entering the interior of the lens actuator (10). The adhesive member may include at least one of an epoxy, a thermosetting adhesive, and an ultraviolet-curable adhesive.

[0318] The camera device (10A) may include a printed circuit board (PCB) (50). The printed circuit board (50) may be a substrate or a circuit board. A lens driving device (10) may be disposed on the printed circuit board (50). A sensor base (40) may be disposed between the printed circuit board (50) and the lens driving device (10). The printed circuit board (50) may be electrically connected to the lens driving device (10). An image sensor (60) may be disposed on the printed circuit board (50). Various circuits, components, control units, etc. may be provided on the printed circuit board (50) to convert an image formed on the image sensor (60) into an electrical signal and transmit it to an external device.

[0319] The camera device (10A) may include an image sensor (60). The image sensor (60) may be configured to form an image by incident light passing through a lens and a filter (30). The image sensor (60) may be mounted on a printed circuit board (50). The image sensor (60) may be electrically connected to the printed circuit board (50). For example, the image sensor (60) may be coupled to the printed circuit board (50) using surface mounting technology (SMT). As another example, the image sensor (60) may be coupled to the printed circuit board (50) using flip chip technology. The image sensor (60) may be arranged such that its optical axis is aligned with that of the lens. That is, the optical axis of the image sensor (60) and the optical axis of the lens may be aligned. The image sensor (60) can convert light irradiated onto the effective image area of ​​the image sensor (60) into an electrical signal. The image sensor (60) can be any one of a CCD (charge coupled device), a MOS (metal oxide semi-conductor), a CPD, and a CID.

[0320] The camera device (10A) may include a motion sensor (70). The motion sensor (70) may be mounted on a printed circuit board (50). The motion sensor (70) may be electrically connected to a control unit (80) through a circuit pattern provided on the printed circuit board (50). The motion sensor (70) may output rotational angular velocity information due to the movement of the camera device (10A). The motion sensor (70) may include a two-axis or three-axis gyro sensor or an angular velocity sensor.

[0321] The camera device (10A) may include a control unit (80). The control unit (80) may be disposed on a printed circuit board (50). The control unit (80) may be electrically connected to a coil (330) of a lens driving device (10). The control unit (80) may individually control the direction, intensity, amplitude, etc. of the current supplied to the coil (330). The control unit (80) may control the lens driving device (10) to perform an autofocus function and / or a shake correction function. Furthermore, the control unit (80) may perform autofocus feedback control and / or shake correction feedback control for the lens driving device (10).

[0322] The camera device (10A) may include a connector (90). The connector (90) may be electrically connected to a printed circuit board (50). The connector (90) may include a port for electrically connecting to an external device.

[0323]

[0324] Hereinafter, an optical device according to a first embodiment of the present invention will be described with reference to the drawings.

[0325] Fig. 37 is a perspective view of an optical device according to a first embodiment of the present invention. Fig. 38 is a perspective view of an optical device according to a modified example.

[0326] The optical device (1) may include one or more of a mobile phone, a cell phone, a portable terminal, a mobile terminal, a smart phone, a smart pad, a portable smart device, a digital camera, a laptop computer, a digital broadcasting terminal, a PDA (Personal Digital Assistant), a PMP (Portable Multimedia Player), and a navigation device. The optical device (1) may include any device for taking images or photographs.

[0327] An optical device (1) may include a main body (20). The optical device (1) may include a camera device (10A). The camera device (10A) may be placed on the main body (20). The camera device (10A) may capture a subject. The optical device (1) may include a display. The display may be placed on the main body (20). The display may output one or more of a video or image captured by the camera device (10A). The display may be placed on a first surface of the main body (20). The camera device (10A) may be placed on one or more of the first surface of the main body (20) and a second surface opposite the first surface. As illustrated in FIG. 37, the camera device (10A) may have a triple camera positioned vertically. As illustrated in FIG. 38, the camera device (10A-1) may have a triple camera positioned horizontally.

[0328]

[0329] Below, the configuration of a lens driving device according to a second embodiment and a modified example of the present invention will be described with reference to the drawings.

[0330] Fig. 39 is a cross-sectional view of a lens driving device according to a second embodiment of the present invention. Fig. 40 is a cross-sectional view of a lens driving device according to a second embodiment of the present invention, cut parallel to the optical axis. Fig. 41 is a cross-sectional view illustrating a base and related components of a lens driving device according to a second embodiment of the present invention. Fig. 42 is a plan view illustrating an AF carrier and related components of a lens driving device according to a second embodiment of the present invention. Fig. 43 is a plan view illustrating an OIS-y carrier and related components of a lens driving device according to a second embodiment of the present invention. Fig. 44 is a plan view illustrating an OIS-x carrier and related components of a lens driving device according to a second embodiment of the present invention. FIG. 45 (a) is a view viewed from A of FIG. 41, FIG. 45 (b) is a cross-sectional view taken along line A of FIG. 45 (a) and viewed from above, and FIG. 45 (c) is a cross-sectional view taken along line B of FIG. 45 (a) and viewed from above. FIG. 46 (a) is a cross-sectional view showing the arrangement structure of the base and the ball of the lens driving device according to the second embodiment of the present invention, and FIG. 46 (b) is a modified example. FIG. 47 is a view showing the AF carrier and related components of the lens driving device according to the second embodiment of the present invention. FIG. 47 (a) is a plan view, FIG. 47 (b) is a front view, FIG. 47 (c) is a left side view, FIG. 47 (d) is a rear view, and FIG. 47 (e) is a right side view. FIG. 48 is a view showing a modified example of FIG. 47. FIG. 49 is a diagram illustrating an OIS-y carrier and related configuration of a lens driving device according to a second embodiment of the present invention. FIG. 49 (a) is a plan view, FIG. 49 (b) is a front view, FIG. 49 (c) is a front view combined with an AF carrier, FIG. 49 (d) is a left side view, FIG. 49 (e) is a left side view combined with an AF carrier, FIG. 49 (f) is a rear view, FIG. 49 (h) is a right side view, and FIG. 49 (g) is a diagram illustrating the opposite side of FIG. 49 (h).FIG. 50 (a) is a drawing showing a state in which a base, an AF carrier, and an OIS-y carrier are arranged, FIG. 50 (b) is a drawing showing the arrangement structure of the AF guide ball as seen from above, and FIG. 50 (c) is a modified example of FIG. 50 (b). FIG. 51 is a drawing showing an OIS-x carrier and related configuration of a lens driving device according to a second embodiment of the present invention. FIG. 51 (a) is a plan view, FIG. 51 (b) is a right side view, FIG. 51 (c) is a rear view, and FIG. 51 (d) is a plan view of an OIS-x magnet. FIG. 52 is a drawing showing a contact structure between the base and the OIS-y carrier. Fig. 52 (a) and (d) are cross-sectional views illustrating an attractive magnet arranged on a protrusion of an OIS-y carrier, and Fig. 52 (b) and (c) are cross-sectional views illustrating a yoke arranged on the OIS-y carrier. Fig. 52 (e) is a plan view of an OIS-y magnet, Fig. 52 (f) is a drawing illustrating a yoke arranged on the OIS-y carrier, and Fig. 52 (g) is a modified example of Fig. 52 (f). Fig. 53 is a drawing illustrating an attractive structure between an AF magnet and a yoke of a lens driving device according to a modified example. Fig. 53 (a) is a cross-sectional view, and Fig. 53 (b) is a drawing illustrating the action of force at points A and B of Fig. 53 (a). Fig. 54 is a drawing of a lens driving device according to a modified example. In Fig. 54, compared to the second embodiment of the present invention, the arrangement positions and shapes of the OIS-x magnet, the OIS-y magnet, and the yoke can be changed. Fig. 54 (a) is a cross-sectional view of a fixing part, Fig. 54 (b) is a plan view of an OIS-x carrier, Fig. 54 (c) is a plan view of an AF carrier, and Fig. 54 (d) is a plan view of an OIS-y carrier. Figs. 55 (a) to (d) are drawings showing an OIS-y magnet and a related configuration according to a modified example, and Figs. 55 (e) to (h) are drawings showing an OIS-x magnet and a related configuration according to a modified example.FIG. 55 (a) is a plan view of an OIS-y carrier, FIG. 55 (b) is a back view of the OIS-y carrier, FIG. 55 (c) is a plan view of an OIS-y magnet, and FIG. 55 (d) is a modified example of FIG. 55 (c). FIG. 55 (e) is a plan view of an OIS-x carrier, FIG. 55 (f) is a right side view of the OIS-y carrier, FIG. 55 (g) is a plan view of an OIS-y magnet, and FIG. 55 (h) is a modified example of FIG. 55 (g). FIG. 56 is a cross-sectional view of a lens driving device according to a modified example. In FIG. 56, compared to the second embodiment of the present invention, the OIS-x coil and the OIS-y coil can be arranged on the AF carrier instead of the fixed portion. Fig. 57 is a cross-sectional view taken along the line AA of Fig. 56. Fig. 58 is a drawing of a lens drive device according to a variation of Fig. 56. Fig. 58 (a) is a plan view of a base and related components, Fig. 58 (b) is a plan view of an AF carrier and related components, Fig. 58 (c) is a plan view of an OIS-x carrier and related components, and Fig. 58 (d) is a plan view of an OIS-y carrier and related components. Fig. 59 is a drawing showing an AF carrier and a substrate-related component of a lens drive device according to a variation of Fig. 56. Figure 59 (a) is a plan view of the AF carrier and related components, Figure 59 (b) is a front view of the AF carrier and related components, Figure 59 (c) is a left side view of the substrate and related components, Figure 59 (d) is a right side view of the substrate and related components, Figure 59 (e) is a back view of the substrate, and Figure 59 (f) is a back view of the AF carrier. Figures 39 to 59 are conceptual drawings, and all or part of the drawings may be conceptually depicted, which may be ambiguous or contradictory.

[0331] The lens driving device (1010) may be a voice coil motor (VCM). The lens driving device (1010) may be a lens driving motor. The lens driving device (1010) may be a lens driving actuator. The lens driving device (1010) may include an AF module. The lens driving device (1010) may include an OIS module.

[0332] The lens actuator (1010) may include a fixed portion (1100). The fixed portion (1100) may be a portion that is relatively fixed when the moving portion moves. The moving portion may move relative to the fixed portion (1100).

[0333] The lens actuator (1010) may include a base (1110). The fixing member (1100) may include a base (1110). The base (1110) may be positioned below the AF carrier (1210). The base (1110) may be positioned below the OIS carrier (1300). The base (1110) may be coupled to a cover. The AF carrier (1210) and the OIS carrier (1300) may be positioned on the base (1110). The AF carrier (1210) and the OIS carrier (1300) may be positioned on the lower portion of the base (1110). The AF carrier (1210) and the OIS carrier (1300) may be positioned within the base (1110). The AF carrier (1210) and the OIS carrier (1300) can be placed within the side wall of the base (1110).

[0334] The base (1110) may include a lower plate. The lower plate of the base (1110) may support the lower surface of the AF moving part (1200). The lower plate of the base (1110) may support the lower surface of the AF carrier (1210).

[0335] The base (1110) may include a side wall portion. The side wall portion may extend upward from an edge of the upper surface of the lower plate portion. The base (1110) may include a pillar portion. The pillar portion may extend from a corner region of the upper surface of the lower plate portion.

[0336] The base (1110) may include a groove (1111). The groove (1111) may be a common guide ball receiving groove. The groove (1111) may be concavely formed on a side wall portion of the base (1110). The groove (1111) may be formed on an inner surface of the side wall portion of the base (1110). A common guide ball (1840) may be arranged in the groove (1111). The groove (1111) may be in contact with the common guide ball (1840) at one point. However, the common guide ball (1840) may be in contact with the groove (1111) at two or three points due to movement of the common guide ball (1840).

[0337] The width of the groove (1111) in the y-axis direction may be greater than the width of the groove (1112) in the y-axis direction. Alternatively, the width of the groove (1111) in the x-axis direction may be greater than the width of the groove (1112) in the x-axis direction.

[0338] A first length of the groove (1111) of the base (1110) in the optical axis direction may be greater than a diameter of the common guide ball (1840). A second length of the groove (1111) of the base (1110) in the y-axis direction may be greater than a diameter of the common guide ball (1840). The common guide ball (1840) may roll within the groove (1111) of the base (1110) in the optical axis direction. The common guide ball (1840) may roll within the groove (1111) of the base (1110) in the y-axis direction.

[0339] The base (1110) may include a groove (1112). The groove (1112) may be an AF guide ball receiving groove. The groove (1112) may be concavely formed on a side wall of the base (1110). The groove (1112) may be formed on an inner surface of the side wall of the base (1110). An AF guide ball (1810) may be placed in the groove (1112). The groove (1112) may have a V-shaped cross-section. The groove (1112) may be in contact with the AF guide ball (1810) at two points. In the second embodiment of the present invention, one of the two grooves (1112) of the base (1110) and the two grooves (1212) of the AF carrier (1210) may be a flat groove rather than a V-shaped groove. The AF guide ball (1810) may be in contact with the flat groove at one point.

[0340] One of the home (1111) and home (1112) of the base (1110) can be called the 'first home' and the other can be called the 'second home'.

[0341] The base (1110) may include a rib (1113). The rib (1113) may cover the upper side of the common guide ball (1840). This may prevent the common guide ball (1840) from coming off. The rib (1113) may be formed between the groove (1111) and the groove (1112) of the base (1110). The upper side of the AF guide ball (1810) may be open. In this case, the AF guide ball (1810) may be prevented from coming off by a stopper formed on the upper plate of the cover.

[0342] The distance in the x-axis direction between the rib (1113) and the AF carrier (1210) may be smaller than the radius of each of the AF guide ball (1810) and the common guide ball (1840).

[0343] In a modified example, as illustrated in (b) of FIG. 46 and (c) of FIG. 50, the base (1110) may include a rib (1113a). The rib (1113a) may have a thickness that decreases toward the end. The rib (1113a) may be formed with a pointed end. The upper and lower surfaces of the rib (1113a) may be formed as inclined surfaces. In this case, the optical axis direction cloud movement section of the AF guide ball (1810) and the common guide ball (1840) may be increased.

[0344] The length of the rib (1113a) of the modified example in the x-axis direction may be longer than the length of the rib (1113) of the second embodiment of the present invention in the x-axis direction. Alternatively, the length of the rib (1113a) of the modified example in the x-axis direction may be the same as the length of the rib (1113) of the second embodiment of the present invention in the x-axis direction. The length of the rib (1113a) of the modified example in the x-axis direction may be the same as or greater than the radius of each of the AF guide ball (1810) and the common guide ball (1840). The length of the rib (1113) of the second embodiment of the present invention in the x-axis direction may be the same as or greater than the radius of each of the AF guide ball (1810) and the common guide ball (1840).

[0345] The lens actuator (1010) may include a substrate (1120). The fixing member (1100) may include the substrate (1120). The substrate (1120) may be disposed on the base (1110). The substrate (1120) may be disposed on the cover. The substrate (1120) may be disposed on a side plate of the cover. Coils (1420, 1520, 1620) may be disposed on the substrate (1120). Sensors (1530, 1630, 1730) may be disposed on the substrate (1120). The substrate (1120) may be a circuit board. The substrate (1120) may be a printed circuit board. The substrate (1120) may be an FPCB.

[0346] The substrate (1120) may include a first substrate (1121). An AF coil (1420) may be disposed on the first substrate (1121). An AF sensor (1430) may be disposed on the first substrate (1121).

[0347] The substrate (1120) may include a second substrate (1122). The second substrate (1122) may be disposed on the opposite side of the first substrate (1121). An OIS-x coil (1520) may be disposed on the second substrate (1122). An OIS-x sensor (1530) may be disposed on the second substrate (1122).

[0348] The substrate (1120) may include a third substrate (1123). An OIS-y coil (1620) may be disposed on the third substrate (1123). An OIS-y sensor (1630) may be disposed on the third substrate (1123).

[0349] The lens actuator (1010) may include a cover. The fixing member (1100) may include a cover. The cover may be disposed on the base (1110). The cover may be disposed on the base (1110). The cover may be coupled to the base (1110). The cover may be fixed to the base (1110). The cover may accommodate an AF carrier (1210) therein. The cover may accommodate an OIS-x carrier (1310) therein. The cover may accommodate an OIS-y carrier (1320) therein. The cover may be a shield member. The cover may be a shield can.

[0350] The cover may include a top plate. The top plate may be positioned on the movable member. The upward movement of the movable member may be limited by the movable member contacting the top plate.

[0351] The cover may include a side plate. The side plate may extend from the top plate. The side plate may be disposed on the base (1110). The side plate may be disposed on a step portion that protrudes from the lower portion of the outer surface of the base (1110). The side plate may include a plurality of side plates. The side plate may include four side plates. The side plates may include a first side plate and a second side plate that are disposed opposite each other, and a third side plate and a fourth side plate that are disposed opposite each other.

[0352] The lens driving device (1010) may include a moving part. The moving part may be a moving body. The moving part may be arranged on the fixed part (1100). The moving part may be arranged within the fixed part (1100). The moving part may be arranged on the fixed part (1100). The moving part may be movably arranged on the fixed part (1100). The moving part may be moved relative to the fixed part (1100) by the driving part. The moving part may be moved when the AF is driven. The moving part may be moved when the OIS is driven. A lens may be coupled to the moving part.

[0353] The lens actuator (1010) may include an AF moving unit (1200). The AF moving unit (1200) may be an AF moving body. The AF moving unit (1200) may be disposed on a fixed unit (1100). The AF moving unit (1200) may be disposed within the fixed unit (1100). The AF moving unit (1200) may be disposed on the fixed unit (1100). The AF moving unit (1200) may be disposed between the fixed unit (1100) and the OIS moving unit (1300). The AF moving unit (1200) may be movably disposed on the fixed unit (1100). The AF moving unit (1200) may be moved in the optical axis direction with respect to the fixed unit (1100) by the AF driving unit (1400). The AF moving part (1200) can move when the AF is driven.

[0354] The lens driving device (1010) may include an AF carrier (1210). The AF moving unit (1200) may include an AF carrier (1210). The AF carrier (1210) may be an 'AF holder'. The AF carrier (1210) may be a 'housing'. The AF carrier (1210) may be placed within the base (1110). The AF carrier (1210) may be placed on the base (1110). The AF carrier (1210) may be placed within a cover. The AF carrier (1210) may be placed between the base (1110) and the OIS-x carrier (1310). The AF carrier (1210) may be placed between the base (1110) and the OIS-y carrier (1320). The AF carrier (1210) can be arranged to be movable in the optical axis direction.

[0355] The AF carrier (1210) may include a hole (1211). The hole (1211) may be a protrusion passage hole of the OIS-y carrier. The protrusion (1322) of the OIS-y carrier (1320) may pass through the hole (1211). The protrusion (1322) of the OIS-y carrier (1320) may pass through the hole (1211). The hole (1211) may be an open portion for protrusion of the OIS-y carrier (1320).

[0356] The AF carrier (1210) may include a groove (1212). The groove (1212) may be an AF guide ball receiving groove. An AF guide ball (1810) may be arranged in the groove (1212). The cross-section of the groove (1212) may be formed in a V shape. The AF guide ball (1810) may contact the groove (1212) at two points. The groove (1212) may be arranged in the optical axis direction. The AF guide ball (1810) may move in a rolling manner in the optical axis direction in the groove (1212) of the AF carrier (1210).

[0357] When the AF carrier (1210) moves upward while the AF guide ball (1810) is at the lowest position, if the lower part of the groove (1212) is blocked, the AF guide ball (1810) may come into contact with the lower part of the groove (1212), causing friction to change due to dragging movement. In other words, control may be difficult. By creating a rib (1113) to cover a radius greater than that of the AF guide ball (1810) and opening the lower part of the groove (1212), dragging movement can be prevented even when the AF guide ball (1810) is at the lowest position, while at the same time preventing the detachment of the AF guide ball (1810).

[0358] The AF carrier (1210) may include a groove (1213). The groove (1213) may be an OIS-y guide ball receiving groove. An OIS-y guide ball (1830) may be arranged in the groove (1213). In the x-axis direction, the groove (1213) of the AF carrier (1210) may not overlap with the AF magnet (1410). The groove (1213) may be arranged in the y-axis direction. The OIS-y guide ball (1830) may move in the y-axis direction in the groove (1213) of the AF carrier (1210). The groove (1213) may be formed as one. Alternatively, the grooves (1213) may be formed as multiple grooves. A ball may be arranged in each of the multiple grooves.

[0359] As a variation, as illustrated in FIG. 48, the AF carrier (1210) may include a groove (1213a). The groove (1213a) may be an OIS-y guide ball receiving groove. In the x-axis direction, the groove (1213a) of the AF carrier (1210) may overlap with the AF magnet (1410). In a variation, the groove (1213a) may be formed at a lower position than in the second embodiment of the present invention. In a variation, the AF magnet (1410) may be arranged at a higher position than in the second embodiment of the present invention. The groove (1213a) may be formed as one. In a variation, the grooves (1213a) may be formed in multiple numbers. A ball may be arranged in each of the multiple grooves.

[0360] One of the home (1212) and home (1213) of the AF carrier (1210) may be called the ‘first home’ and the other may be called the ‘second home’.

[0361] The lens driving device (1010) may include an OIS moving unit (1300). The OIS moving unit (1300) may be an OIS moving body. The OIS moving unit (1300) may be disposed on a fixed unit (1100). The OIS moving unit (1300) may be disposed within the fixed unit (1100). The OIS moving unit (1300) may be disposed on the fixed unit (1100). The OIS moving unit (1300) may be disposed within the AF moving unit (1200). The OIS moving unit (1300) may be disposed to be movable. The OIS moving unit (1300) may move in a direction perpendicular to the optical axis with respect to the fixed unit (1100) and the AF moving unit (1200) by the OIS driving unit. The OIS moving unit (1300) may move when the OIS is driven. The OIS moving unit (1300) can move in the x-axis direction by the OIS-x driving unit (1500). The OIS moving unit (1300) can move in the y-axis direction by the OIS-y driving unit (1600). The OIS moving unit (1300) can include the OIS-x moving unit. The OIS moving unit (1300) can include the OIS-y moving unit. The OIS-x moving unit can move in the x-axis direction by the OIS-x driving unit (1500). The OIS-y moving unit can move in the y-axis direction by the OIS-y driving unit (1600).

[0362] The lens actuator (1010) may include an OIS-x carrier (1310). The OIS-x carrier (1310) may be an OIS bobbin. The OIS-x carrier (1310) may be placed on an OIS-y carrier (1320). The OIS-x carrier (1310) may be placed on an AF carrier (1210). The OIS-x carrier (1310) may be placed on a base (1110). The OIS-x carrier (1310) may be placed within the OIS-y carrier (1320). The OIS-x carrier (1310) may be placed within the AF carrier (1210). The OIS-x carrier (1310) may be placed within the base (1110).

[0363] The OIS-x carrier (1310) may include a groove (1311). The groove (1311) may be an OIS-x guide ball receiving groove. The groove (1311) may be formed in the OIS-x carrier (1310). The groove (1311) may be formed concavely in the OIS-x carrier (1310). The groove (1311) may be formed on an outer surface of the OIS-x carrier (1310). An OIS-x guide ball (1820) may be arranged in the groove (1311). The groove (1311) may be arranged in the x-axis direction. The OIS-x guide ball (1820) may move in the x-axis direction in the groove (1311) of the OIS-x carrier (1310).

[0364] The lens actuator (1010) may include an OIS-y carrier (1320). The OIS-y carrier (1320) may be an OIS frame. The OIS-y carrier (1320) may be placed on the AF carrier (1210). The OIS-y carrier (1320) may be placed on the base (1110). The OIS-y carrier (1320) may be placed inside the AF carrier (1210). The OIS-y carrier (1320) may be placed inside the base (1110). The OIS-y carrier (1320) may be placed between the AF carrier (1210) and the OIS-x carrier (1310). The OIS-y carrier (1320) may be placed between the base (1110) and the OIS-x carrier (1310).

[0365] The OIS-y carrier (1320) may include a groove (1321). The groove (1321) may be a common guide ball receiving groove. The groove (1321) may be concavely formed in the OIS-y carrier (1320). The groove (1321) may be formed in a protrusion (1322) of the OIS-y carrier (1320). The groove (1321) may be formed at an end of the protrusion (1322) of the OIS-y carrier (1320). A common guide ball (1840) may be arranged in the groove (1321). The groove (1321) may be in contact with the common guide ball (1840) at one point. However, the common guide ball (1840) may be in contact with the groove (1321) at two or three points due to movement of the common guide ball (1840).

[0366] A first length of the groove (1321) of the OIS-y carrier (1320) in the optical axis direction may be greater than a diameter of the common guide ball (1840). A second length of the groove (1321) of the OIS-y carrier (1320) in the y-axis direction may be greater than a diameter of the common guide ball (1840). The common guide ball (1840) can move in the optical axis direction within the groove (1321) of the OIS-y carrier (1320). The common guide ball (1840) can move in the y-axis direction within the groove (1321) of the OIS-y carrier (1320).

[0367] The OIS-y carrier (1320) may include a protrusion (1322). The protrusion (1322) may pass through the hole (1211) of the AF carrier (1210). The protrusion (1322) may protrude toward the base (1110). The protrusion (1322) may protrude in the x-axis direction. A common guide ball (1840) may be arranged on the protrusion (1322). The protrusion (1322) may overlap with the AF carrier (1210) in the optical axis direction. The protrusion (1322) may be arranged between the base (1110) and the AF carrier (1210) in the optical axis direction. The protrusion (1322) may be arranged between the base (1110) and the AF carrier (1210).

[0368] As a variation, the base (1110) may include a protrusion. In this case, the protrusion (1322) of the OIS-y carrier (1320) may be omitted. A common guide ball (1840) may be placed between the protrusion of the base (1110) and the OIS-y carrier (1320). Alternatively, both the OIS-y carrier (1320) and the base (1110) may include a protrusion. A common guide ball (1840) may be placed between the protrusion of the OIS-y carrier (1320) and the base (1110).

[0369] The OIS-y carrier (1320) may include a groove (1323). The groove (1323) may be an OIS-x guide ball receiving groove. The groove (1323) may be formed in the OIS-y carrier (1320). The groove (1323) may be formed concavely in the OIS-y carrier (1320). The groove (1323) may be formed on an inner surface of the OIS-y carrier (1320). An OIS-x guide ball (1820) may be arranged in the groove (1323). The groove (1323) may be arranged in the x-axis direction. The OIS-x guide ball (1820) may move in the x-axis direction in the groove (1323) of the OIS-y carrier (1320).

[0370] The OIS-y carrier (1320) may include a groove (1324). The groove (1324) may be an OIS-y guide ball receiving groove. An OIS-y guide ball (1830) may be arranged in the groove (1324). In the x-axis direction, the groove (1324) of the OIS-y carrier (1320) may not overlap with the AF magnet (1410). The groove (1324) may be arranged in the y-axis direction. The OIS-y guide ball (1830) may move in the y-axis direction in the groove (1324) of the OIS-y carrier (1320). The groove (1324) may be formed as one. Alternatively, the grooves (1324) may be formed in multiple ways. A ball may be arranged in each of the multiple grooves. Home (1324) can be formed in the same number as home (1213).

[0371] One of the home (1321), home (1323) and home (1324) of the OIS-y carrier (1320) may be referred to as the 'first home', the other may be referred to as the 'second home' and the other may be referred to as the 'third home'.

[0372] The lens driving device (1010) may include a driving unit. The driving unit may move the moving unit relative to the fixed unit (1100). The driving unit may include an AF driving unit (1400). The driving unit may include an OIS driving unit. The driving unit may include an OIS-x driving unit (1500). The driving unit may include an OIS-y driving unit (1600). The driving unit may include a coil and a magnet.

[0373] The lens driving device (1010) may include an AF driving unit (1400). The AF driving unit (1400) may move the AF moving unit (1200) in the optical axis direction. The AF driving unit (1400) may move the AF carrier (1210) in the optical axis direction. The AF driving unit (1400) may move the AF carrier (1210) in the optical axis direction through electromagnetic force. The AF driving unit (1400) may include a coil and a magnet.

[0374] The lens driving device (1010) may include an AF magnet (1410) and an AF coil (1420) that move the AF moving unit (1200) in the optical axis direction. In the second embodiment of the present invention, the AF carrier (1210), the OIS-x carrier (1310), and the OIS-y carrier (1320) can move in the optical axis direction by the interaction between the AF coil (1420) and the AF magnet (1410).

[0375] The lens driving device (1010) may include an AF magnet (1410). The AF driving unit (1400) may include an AF magnet (1410). The AF magnet (1410) may be an 'AF magnet'. The AF magnet (1410) may be a permanent magnet. The AF magnet (1410) may be arranged in the AF moving unit (1200). The AF magnet (1410) may be arranged in the AF carrier (1210). The AF magnet (1410) may be arranged on the outer surface of the AF carrier (1210). The AF magnet (1410) may be fixed to the AF carrier (1210). The AF magnet (1410) may be coupled to the AF carrier (1210). The AF magnet (1410) can be adhesively bonded to the AF carrier (1210). The AF magnet (1410) can be placed inside the cover. The AF magnet (1410) can interact with the AF coil (1420). The AF magnet (1410) can electromagnetically interact with the AF coil (1420). The AF magnet (1410) can be placed at a position corresponding to the AF coil (1420). The AF magnet (1410) can face the AF coil (1420). The AF magnet (1410) can be overlapped with the AF coil (1420) in a direction perpendicular to the optical axis.

[0376] The AF magnet (1410) may be a four-pole magnet. The AF magnet (1410) may include a four-pole magnetizing magnet. The AF magnet (1410) may include a first magnet portion including a N pole and a S pole, and a second magnet portion including a N pole and a S pole. The first magnet portion and the second magnet portion may be arranged vertically. The first magnet portion and the second magnet portion may be spaced apart from each other in the vertical direction, and a neutral portion may be arranged between the first magnet portion and the second magnet portion.

[0377] The lens actuator (1010) may include an AF coil (1420). The AF actuator (1400) may include the AF coil (1420). The AF coil (1420) may interact with the AF magnet (1410). The AF coil (1420) may face the AF magnet (1410). The AF coil (1420) may be positioned corresponding to the AF magnet (1410). The AF coil (1420) may overlap the AF magnet (1410) in a direction perpendicular to the optical axis. The AF coil (1420) may be positioned on the fixing unit (1100). The AF coil (1420) may be positioned on the base (1110). The AF coil (1420) may be placed on the cover. The AF coil (1420) may be placed on the side plate of the cover. The AF coil (1420) may be placed on the substrate (1120). The AF coil (1420) may be fixed to the substrate (1120). The AF coil (1420) may be coupled to the substrate (1120). The AF coil (1420) may be soldered to the substrate (1120). The AF coil (1420) may be placed on the first substrate (1121).

[0378] The lens driving device (1010) may include an AF sensor (1430). The AF driving unit (1400) may include an AF sensor (1430). The AF sensor (1430) may be a Hall sensor. The AF sensor (1430) may be disposed on the fixing unit (1100). The AF sensor (1430) may be disposed on the base (1110). The AF sensor (1430) may be disposed on the cover. The AF sensor (1430) may be disposed on the side plate of the cover. The AF sensor (1430) may be disposed on the substrate (1120). The AF sensor (1430) may be fixed to the substrate (1120). The AF sensor (1430) may be coupled to the substrate (1120). The AF sensor (1430) may be soldered to the substrate (1120). The AF sensor (1430) can detect the AF magnet (1410). The AF sensor (1430) can detect the movement of the AF magnet (1410). The movement amount or position of the AF magnet (1410) detected by the AF sensor (1430) can be used for feedback of auto focus operation.

[0379] The AF sensor (1430) may be a driver IC. The driver IC may include a sensing unit. The sensing unit may include a Hall element (Hall IC). The driver IC may be electrically connected to the AF coil (1420). The driver IC may supply current to the AF coil (1420).

[0380] The AF sensor (1430) may be disposed within the AF coil (1420). The AF sensor (1430) may overlap with the neutral portion of the AF magnet (1410) in a direction perpendicular to the optical axis. The AF sensor (1430) may overlap with the neutral portion of the AF magnet (1410) in the x-axis direction. The AF sensor (1430) may overlap with the AF coil (1420) in the optical axis direction. The AF sensor (1430) may overlap with the AF coil (1420) in a direction perpendicular to the optical axis. The AF sensor (1430) may overlap with the AF coil (1420) in the y-axis direction. Alternatively, the AF sensor (1430) may be disposed on the outside of the AF coil (1420).

[0381] The lens driving device (1010) may include an OIS driving unit. The OIS driving unit may move the OIS moving unit (1300) in a direction perpendicular to the optical axis. The OIS driving unit may move at least one of the OIS-x carrier (1310) and the OIS-y carrier (1320) in a direction perpendicular to the optical axis.

[0382] The lens driving device (1010) may include an OIS-x driving unit (1500). The OIS driving unit may include an OIS-x driving unit (1500). The OIS-x driving unit (1500) may move the OIS-x carrier (1310) in the x-axis direction perpendicular to the optical axis. The OIS-x driving unit (1500) may move the OIS-x carrier (1310) in the x-axis direction perpendicular to the optical axis through electromagnetic force. The OIS-x driving unit (1500) may include a coil and a magnet.

[0383] The lens driving device (1010) may include an OIS-x magnet (1510) and an OIS-x coil (1520) that move the OIS moving unit (1300) in the x-axis direction perpendicular to the optical axis direction. In the second embodiment of the present invention, the OIS-x magnet (1510) and the OIS-x coil (1520) may move the OIS-x carrier (1310) in a first direction perpendicular to the optical axis direction. At this time, the first direction may be the x-axis direction. The OIS-x carrier (1310) may move in the x-axis direction perpendicular to the optical axis direction by the interaction between the OIS-x coil (1520) and the OIS-x magnet (1510). The OIS-x magnet (1510) and the OIS-x carrier (1310) may move in the x-axis direction as one unit.

[0384] The lens driving device (1010) may include an OIS-x magnet (1510). The OIS driving unit may include an OIS-x magnet (1510). The OIS-x magnet (1510) may be an 'OIS-x magnet'. The OIS-x magnet (1510) may be a permanent magnet. The OIS-x magnet (1510) may be arranged in the OIS moving unit (1300). The OIS-x magnet (1510) may be spaced apart from the AF magnet (1410). The OIS-x magnet (1510) may be arranged in the OIS-x carrier (1310). The OIS-x magnet (1510) may be arranged on an outer surface of the OIS-x carrier (1310). The OIS-x magnet (1510) can be fixed to the OIS-x carrier (1310). The OIS-x magnet (1510) can be coupled to the OIS-x carrier (1310). The OIS-x magnet (1510) can be adhesively bonded to the OIS-x carrier (1310). The OIS-x magnet (1510) can be placed inside the cover. The OIS-x magnet (1510) can interact with the OIS-x coil (1520). The OIS-x magnet (1510) can electromagnetically interact with the OIS-x coil (1520). The OIS-x magnet (1510) can be placed at a position corresponding to the OIS-x coil (1520). The OIS-x magnet (1510) can face the OIS-x coil (1520). The OIS-x magnet (1510) can face the OIS-x coil (1520). The OIS-x magnet (1510) can overlap with the OIS-x coil (1520) in a direction perpendicular to the optical axis. The OIS-x magnet (1510) can overlap with the OIS-x coil (1520) in the x-axis direction. The OIS-x magnet (1510) can move in the x-axis direction perpendicular to the optical axis.

[0385] The OIS-x magnet (1510) may be a two-pole magnet. The OIS-x magnet (1510) may include a two-pole magnetizing magnet. The OIS-x magnet (1510) may include a north pole and a south pole. The OIS-x magnet (1510) may include a first surface facing the OIS-x coil (1520). In this case, the first surface of the OIS-x magnet (1510) may have a single polarity. The entire area of ​​the surface facing the OIS-x coil (1520) of the OIS-x magnet (1510) may have the same polarity.

[0386] The OIS-x magnet (1510) can move in a pushing and pulling direction with the OIS-x coil (1520) through interaction with the OIS-x coil (1520). The OIS-x magnet (1510) can be arranged perpendicular to the x-axis direction. The OIS-x magnet (1510) can be arranged parallel to the y-axis direction.

[0387] As a variation, as illustrated in FIGS. 54 and 55, the OIS-x magnet (1510) can move in a direction that is out of alignment with the OIS-x coil (1520) through interaction with the OIS-x coil (1520) (see B of FIG. 55). The OIS-x magnet (1510) can have a N pole and a S pole on a surface facing the OIS-x coil (1520). The OIS-x magnet (1510) can be arranged perpendicular to the y-axis direction. The OIS-x magnet (1510) can be arranged parallel to the x-axis direction. The OIS-x magnet (1510) can be a two-pole magnet. As a variation, the OIS-x magnet (1510) can be a four-pole magnet. If the OIS-x magnet (1510) is a 4-pole magnet, interference with the external magnetic flux can be minimized.

[0388] The lens actuator (1010) may include an OIS-x coil (1520). The OIS actuator may include an OIS-x coil (1520). The OIS-x coil (1520) may interact with an OIS-x magnet (1510). The OIS-x coil (1520) may be arranged on the opposite side of the AF coil (1420) with respect to the optical axis. The OIS-x coil (1520) may move the OIS-x magnet (1510) in the x-axis direction perpendicular to the optical axis. The OIS-x coil (1520) may move the OIS-x magnet (1510) in the x-axis direction through interaction with the OIS-x magnet (1510). The OIS-x coil (1520) may face the OIS-x magnet (1510). The OIS-x coil (1520) can face the OIS-x magnet (1510). The OIS-x coil (1520) can be arranged to correspond to the OIS-x magnet (1510). The OIS-x coil (1520) can be arranged at a position corresponding to the OIS-x magnet (1510). The OIS-x coil (1520) can overlap the OIS-x magnet (1510) in a direction perpendicular to the optical axis. The OIS-x coil (1520) can overlap the OIS-x magnet (1510) in the x-axis direction.

[0389] The OIS-x coil (1520) may be placed on the fixing member (1100). The OIS-x coil (1520) may be placed on the base (1110). The OIS-x coil (1520) may be placed on the cover. The OIS-x coil (1520) may be placed on the side plate of the cover. The OIS-x coil (1520) may be placed on the substrate (1120). The OIS-x coil (1520) may be fixed to the substrate (1120). The OIS-x coil (1520) may be coupled to the substrate (1120). The OIS-x coil (1520) may be soldered to the substrate (1120). The OIS-x coil (1520) may be placed on the second substrate (1122). When current is applied to the OIS-x coil (1520), the OIS-x magnet (1510) can move away from or closer to the OIS-x coil (1520) in the x-axis direction.

[0390] As a variation, the OIS-x coil (1520) may be placed on the AF moving part (1200) as illustrated in FIGS. 56 to 59. The OIS-x coil (1520) may be placed on the AF carrier (1210). The OIS-x coil (1520) may be placed on the substrate (1700). The OIS-x coil (1520) may be placed on the inner side (1720) of the substrate (1700). The OIS-x coil (1520) may be placed on the inner side (1720) of the substrate (1700) to correspond to the OIS-x magnet (1510).

[0391] In a variation, the OIS-x coil (1520) can move together with the AF moving unit (1200). The OIS-x coil (1520) can move in the optical axis direction together with the AF moving unit (1200). During the AF driving process, the OIS-x coil (1520) can move in the optical axis direction together with the AF moving unit (1200). The OIS-x coil (1520) can be fixed to the AF moving unit (1200). The OIS-x coil (1520) can be coupled to the AF moving unit (1200).

[0392] The lens actuator (1010) may include an OIS-x sensor (1530). The OIS actuator may include an OIS-x sensor (1530). The OIS-x sensor (1530) may be disposed on a fixing member (1100). The OIS-x sensor (1530) may be disposed on a base (1110). The OIS-x sensor (1530) may be disposed on a cover. The OIS-x sensor (1530) may be disposed on a side plate of the cover. The OIS-x sensor (1530) may be disposed on a substrate (1120). The OIS-x sensor (1530) may be fixed to the substrate (1120). The OIS-x sensor (1530) may be coupled to the substrate (1120). The OIS-x sensor (1530) may be soldered to the substrate (1120).

[0393] The OIS-x sensor (1530) may include a Hall sensor. The OIS-x sensor (1530) may detect the OIS-x magnet (1510). The OIS-x sensor (1530) may detect the magnetic force of the OIS-x magnet (1510). The OIS-x sensor (1530) may overlap with the OIS-x magnet (1510) in a direction perpendicular to the optical axis direction. The OIS-x sensor (1530) may overlap with the OIS-x magnet (1510) in the x-axis direction. The OIS-x sensor (1530) may be disposed within the OIS-x coil (1520). The OIS-x sensor (1530) may overlap with the OIS-x coil (1520) in the optical axis direction. The OIS-x sensor (1530) can be overlapped with the OIS-x coil (1520) in a direction perpendicular to the optical axis. The OIS-x sensor (1530) can be overlapped with the OIS-x coil (1520) in the y-axis direction.

[0394] The OIS-x sensor (1530) can face the OIS-x magnet (1510). The OIS-x sensor (1530) can be positioned corresponding to the OIS-x magnet (1510). The OIS-x sensor (1530) can detect movement of the OIS-x magnet (1510). The movement amount or position of the OIS-x magnet (1510) detected by the OIS-x sensor (1530) can be used for feedback of the shake correction drive in the x-axis direction.

[0395] The lens driving device (1010) may include an OIS-y driving unit (1600). The OIS driving unit may include an OIS-y driving unit (1600). The OIS-y driving unit (1600) may move the OIS-y carrier (1320) in the y-axis direction. The OIS-y driving unit (1600) may move the OIS-x carrier (1310) and the OIS-y carrier (1320) in the y-axis direction. The OIS-y driving unit (1600) may move the OIS-y carrier (1320) in the y-axis direction, which is perpendicular to both the optical axis and the x-axis direction, through electromagnetic force. The OIS-y driving unit (1600) may include a coil and a magnet.

[0396] The lens driving device (1010) may include an OIS-y magnet (1610) and an OIS-y coil (1620) that move the OIS moving unit (1300) in the y-axis direction perpendicular to the optical axis direction and the x-axis direction.

[0397] In the second embodiment of the present invention, the OIS-y magnet (1610) and the OIS-y coil (1620) can move the OIS moving unit (1300) in a second direction that is perpendicular to the optical axis direction and the first direction. The second direction may be a direction that is perpendicular to the optical axis direction and intersects the first direction. In this case, the second direction may be the y-axis direction. By the interaction between the OIS-y coil (1620) and the OIS-y magnet (1610), the OIS-y carrier (1320) can move in the y-axis direction that is perpendicular to both the optical axis direction and the x-axis direction. The OIS-y magnet (1610) and the OIS-y carrier (1320) can move integrally in the y-axis direction. The OIS-x carrier (1310) can move integrally with the OIS-y carrier (1320) in the y-axis direction.

[0398] The lens driving device (1010) may include an OIS-y magnet (1610). The OIS-y driving unit (1600) may include an OIS-y magnet (1610). The OIS-y magnet (1610) may be an 'OIS-y magnet'. The OIS-y magnet (1610) may be a permanent magnet. The OIS-y magnet (1610) may be arranged in the OIS moving unit (1300). The OIS-y magnet (1610) may be spaced apart from the OIS-x magnet (1510). The OIS-y magnet (1610) may be spaced apart from the AF magnet (1410). The OIS-y magnet (1610) may be arranged in the OIS-y carrier (1320). The OIS-y magnet (1610) may be disposed on the outer surface of the OIS-y carrier (1320). The OIS-y magnet (1610) may be fixed to the OIS-y carrier (1320). The OIS-y magnet (1610) may be coupled to the OIS-y carrier (1320). The OIS-y magnet (1610) may be adhesively bonded to the OIS-y carrier (1320). The OIS-y magnet (1610) may be disposed inside the cover. The OIS-y magnet (1610) may interact with the OIS-y coil (1620). The OIS-y magnet (1610) may electromagnetically interact with the OIS-y coil (1620). The OIS-y magnet (1610) can be positioned corresponding to the OIS-y coil (1620). The OIS-y magnet (1610) can face the OIS-y coil (1620). The OIS-y magnet (1610) can face the OIS-y coil (1620). The OIS-y magnet (1610) can overlap the OIS-y coil (1620) in a direction perpendicular to the optical axis. The OIS-y magnet (1610) can overlap the OIS-y coil (1620) in the y-axis direction. The OIS-y magnet (1610) can move in the y-axis direction.

[0399] The OIS-y magnet (1610) may be a two-pole magnet. The OIS-y magnet (1610) may include a two-pole magnetizing magnet. The OIS-y magnet (1610) may include a north pole and a south pole. The OIS-y magnet (1610) may include a first surface facing the OIS-y coil (1620). In this case, the first surface of the OIS-y magnet (1610) may have a single polarity. The entire area of ​​the surface of the OIS-y magnet (1610) facing the OIS-y coil (1620) may have the same polarity.

[0400] The OIS-y magnet (1610) can move in a pushing and pulling direction with the OIS-y coil (1620) through interaction with the OIS-y coil (1620). The OIS-y magnet (1610) can be arranged perpendicular to the y-axis direction. The OIS-y magnet (1610) can be arranged parallel to the x-axis direction.

[0401] As a variation, as illustrated in FIGS. 54 and 55, the OIS-y magnet (1610) may move in a direction that is out of alignment with the OIS-y coil (1620) through interaction with the OIS-y coil (1620) (see A of FIG. 55). The OIS-y magnet (1610) may have a surface facing the OIS-y coil (1620) with a N pole and a S pole. The OIS-y magnet (1610) may be arranged perpendicular to the x-axis direction. The OIS-y magnet (1610) may be arranged parallel to the y-axis direction. The OIS-y magnet (1610) may be a two-pole magnet. As a variation, the OIS-y magnet (1610) may be a four-pole magnet. If the OIS-y magnet (1610) is a 4-pole magnet, interference with the external magnetic flux can be minimized.

[0402] The lens actuator (1010) may include an OIS-y coil (1620). The OIS-y actuator (1600) may include the OIS-y coil (1620). The OIS-y coil (1620) may interact with the OIS-y magnet (1610). The OIS-y coil (1620) may move the OIS-y magnet (1610) in the y-axis direction, which is perpendicular to both the optical axis and the x-axis. The OIS-y coil (1620) may move the OIS-y magnet (1610) in the y-axis direction through interaction with the OIS-y magnet (1610). The OIS-y coil (1620) may face the OIS-y magnet (1610). The OIS-y coil (1620) can face the OIS-y magnet (1610). The OIS-y coil (1620) can be arranged to correspond to the OIS-y magnet (1610). The OIS-y coil (1620) can be arranged at a position corresponding to the OIS-y magnet (1610). The OIS-y coil (1620) can overlap the OIS-y magnet (1610) in a direction perpendicular to the optical axis. The OIS-y coil (1620) can overlap the OIS-y magnet (1610) in the y-axis direction.

[0403] The OIS-y coil (1620) may be placed on the fixing member (1100). The OIS-y coil (1620) may be placed on the base (1110). The OIS-y coil (1620) may be placed on the cover. The OIS-y coil (1620) may be placed on the side plate of the cover. The OIS-y coil (1620) may be placed on the substrate (1120). The OIS-y coil (1620) may be fixed to the substrate (1120). The OIS-y coil (1620) may be coupled to the substrate (1120). The OIS-y coil (1620) may be soldered to the substrate (1120). The OIS-y coil (1620) may be placed on the third substrate (1123). When current is applied to the OIS-y coil (1620), the OIS-y magnet (1610) can move away from or closer to the OIS-y coil (1620) in the y-axis direction.

[0404] As a variation, the OIS-y coil (1620) may be placed on the AF moving part (1200) as illustrated in FIGS. 56 to 59. The OIS-y coil (1620) may be placed on the AF carrier (1210). The OIS-y coil (1620) may be placed on the substrate (1700). The OIS-y coil (1620) may be placed on the inner side (1720) of the substrate (1700). The OIS-y coil (1620) may be placed on the inner side (1720) of the substrate (1700) to correspond to the OIS-y magnet (1610).

[0405] In a variation, the OIS-y coil (1620) can move together with the AF moving unit (1200). The OIS-y coil (1620) can move in the optical axis direction together with the AF moving unit (1200). During the AF driving process, the OIS-y coil (1620) can move in the optical axis direction together with the AF moving unit (1200). The OIS-y coil (1620) can be fixed to the AF moving unit (1200). The OIS-y coil (1620) can be coupled to the AF moving unit (1200).

[0406] The lens actuator (1010) may include an OIS-y sensor (1630). The OIS-y actuator (1600) may include an OIS-y sensor (1630). The OIS-y sensor (1630) may be disposed on a fixing member (1100). The OIS-y sensor (1630) may be disposed on a base (1110). The OIS-y sensor (1630) may be disposed on a cover. The OIS-y sensor (1630) may be disposed on a side plate of the cover. The OIS-y sensor (1630) may be disposed on a substrate (1120). The OIS-y sensor (1630) may be fixed to the substrate (1120). The OIS-y sensor (1630) may be coupled to the substrate (1120). The OIS-y sensor (1630) can be soldered to the substrate (1120).

[0407] The OIS-y sensor (1630) may include a Hall sensor. The OIS-y sensor (1630) may detect the OIS-y magnet (1610). The OIS-y sensor (1630) may detect the magnetic force of the OIS-y magnet (1610). The OIS-y sensor (1630) may overlap with the OIS-y magnet (1610) in a direction perpendicular to the optical axis. The OIS-y sensor (1630) may overlap with the OIS-y magnet (1610) in the y-axis direction. The OIS-y sensor (1630) may be disposed within the OIS-y coil (1620). The OIS-y sensor (1630) may overlap with the OIS-y coil (1620) in the optical axis direction. The OIS-y sensor (1630) can be overlapped with the OIS-y coil (1620) in the x-axis direction.

[0408] The OIS-y sensor (1630) may face the OIS-y magnet (1610). The OIS-y sensor (1630) may be positioned corresponding to the OIS-y magnet (1610). The OIS-y sensor (1630) may detect movement of the OIS-y magnet (1610). The movement amount or position of the OIS-y magnet (1610) detected by the OIS-y sensor (1630) may be used for feedback of the shake correction drive in the y-axis direction.

[0409] When viewed from above, the AF coil (1420), the AF magnet (1410), the OIS-x magnet (1510), and the OIS-x coil (1520) can be arranged in order on an imaginary straight line. When viewed from the top, the AF coil (1420), the AF magnet (1410), the OIS-x magnet (1510), and the OIS-x coil (1520) can be arranged in order on an imaginary straight line.

[0410] As a variation, as illustrated in FIGS. 56 to 59, the lens actuator (1010) may include a substrate (1700). The substrate (1700) may include a flexible printed circuit board (FPCB). The substrate (1700) may be electrically connected to the OIS coils (1520, 1620). The substrate (1700) may be electrically connected to the OIS sensors (1530, 1630). The substrate (1700) may connect the base (1110) and the AF carrier (1210). The substrate (1700) may movably support the AF carrier (1210) relative to the base (1110).

[0411] The substrate (1700) may include an outer portion (1710). The outer portion (1710) may be disposed on the base (1110). The outer portion (1710) may include a terminal.

[0412] The substrate (1700) may include an inner portion (1720). The inner portion (1720) may be placed on the AF carrier (1210). The inner portion (1720) may be coupled to the AF carrier (1210). The inner portion (1720) may move together with the AF carrier (1210). The inner portion (1720) may include a lower portion coupled to the lower surface of the AF carrier (1210) and a side portion coupled to the side surface of the AF carrier (1210).

[0413] The substrate (1700) may include a connecting portion (1730). The connecting portion (1730) may be an 'extension portion'. The connecting portion (1730) may be a 'leg portion'. The connecting portion (1730) may extend from the outer portion (1710). The connecting portion (1730) may extend from the inner portion (1720). The connecting portion (1730) may connect the outer portion (1710) and the inner portion (1720). At least a portion of the connecting portion (1730) may move together with the AF carrier (1210). At least a portion of the connecting portion (1730) may be arranged to overlap multiple times in the optical axis direction. The connecting portion (1730) of the substrate (1700) can connect the outer portion (1710) placed on the fixed portion (1100) and the inner portion (1720) placed on the AF moving portion (1200).

[0414] The connecting portion (1730) may include a bend. The connecting portion (1730) may include a bended shape. The connecting portion (1730) may be bent at least 40 times. The connecting portion (1730) may include a rounded shape.

[0415] The lens actuator (1010) may include a guide portion. The lens actuator (1010) may include a guide ball. The guide ball may guide the movement of the moving portion. The guide ball may guide the movement of the moving portion relative to the fixed portion (1100) in a specific direction.

[0416] The lens actuator (1010) may include an AF guide ball (1810). The AF guide ball (1810) may guide the movement of the AF moving unit (1200) relative to the fixed unit (1100) in the optical axis direction. The AF guide ball (1810) may guide the movement of the AF carrier (1210) relative to the base (1110) in the optical axis direction. The AF guide ball (1810) may be arranged between the fixed unit (1100) and the AF moving unit (1200). The AF guide ball (1810) may be arranged between the base (1110) and the AF carrier (1210). The AF guide ball (1810) may be in contact with the base (1110) and the AF carrier (1210). The AF guide ball (1810) may be in direct contact with the base (1110) and the AF carrier (1210). The AF guide ball (1810) can connect the base (1110) and the AF carrier (1210). The AF guide ball (1810) can be arranged between the base (1110) and the AF carrier (1210) in the x direction. The AF guide ball (1810) can be arranged in the groove (1112) of the base (1110). The AF guide ball (1810) can be arranged in the groove (1212) of the AF carrier (1210). The AF guide ball (1810) can be spherical. The AF guide ball (1810) can be formed of metal. Grease can be applied to the surface of the AF guide ball (1810).

[0417] At least a portion of the AF guide ball (1810) may overlap with the common guide ball (1840) in the optical axis direction. The AF guide ball (1810) may overlap with the common guide ball (1840) in the optical axis direction. However, the common guide ball (1840) may be moved to a position where it does not overlap with the AF guide ball (1810) in the optical axis direction. The AF guide ball (1810) may be positioned above the common guide ball (1840) in the optical axis direction.

[0418] The AF guide ball (1810) may include multiple balls. The AF guide ball (1810) may include two balls. The AF guide ball (1810) may include only two balls. The AF guide ball (1810) may include a first ball and a second ball.

[0419] The lens actuator (1010) may include an OIS-x guide ball (1820). The OIS-x guide ball (1820) may be positioned between the OIS-y carrier (1320) and the OIS-x carrier (1310). The OIS-x guide ball (1820) may be positioned between the OIS-y carrier (1320) and the OIS-x carrier (1310) in the y-axis direction. The OIS-x guide ball (1820) may guide the movement of the OIS-x carrier (1310) relative to the OIS-y carrier (1320) in the x-axis direction.

[0420] The OIS-x guide ball (1820) may include multiple balls. The OIS-x guide ball (1820) may include three or more balls. The OIS-x guide ball (1820) may include four balls. The OIS-x guide ball (1820) may include first to fourth balls.

[0421] The lens actuator (1010) may include an OIS-y guide ball (1830). The OIS-y guide ball (1830) may be positioned between the AF carrier (1210) and the OIS-y carrier (1320). The OIS-y guide ball (1830) may be positioned between the AF carrier (1210) and the OIS-y carrier (1320) in the x-axis direction. The OIS-y guide ball (1830) may guide the movement of the OIS-y carrier (1320) relative to the AF carrier (1210) in the y-axis direction.

[0422] The OIS-y guide ball (1830) can be positioned at a height between the yoke (1930) and the AF magnet (1410). When viewed from above, the OIS-y guide ball (1830) can be positioned between the yoke (1930) and the AF magnet (1410).

[0423] The OIS-y guide ball (1830) may be formed of a single ball. Alternatively, the OIS-y guide ball (1830) may include multiple balls.

[0424] The lens actuator (1010) may include a common guide ball (1840). The common guide ball (1840) may be disposed on the base (1110). The common guide ball (1840) may be disposed on the OIS-y carrier (1320). The common guide ball (1840) may be disposed between the base (1110) and the OIS-y carrier (1320). The common guide ball (1840) may be disposed between the base (1110) and the OIS-y carrier (1320) in the x-axis direction. The common guide ball (1840) may guide the movement of the OIS-y carrier (1320) with respect to the base (1110) in the optical axis direction and the y-axis direction. The common guide ball (1840) may guide the movement of the OIS-y carrier (1320) in the optical axis direction and the y-axis direction. The common guide ball (1840) can guide the movement of the OIS-y carrier (1320) in the optical axis direction. The common guide ball (1840) can guide the movement of the OIS-y carrier (1320) in the y-axis direction.

[0425] The common guide ball (1840) can be in contact with the base (1110) and the OIS-y carrier (1320). The common guide ball (1840) can be in direct contact with the base (1110) and the OIS-y carrier (1320). The common guide ball (1840) can connect the base (1110) and the OIS-y carrier (1320).

[0426] The common guide ball (1840) can be placed between the groove (1111) of the base (1110) and the groove (1321) of the OIS-y carrier (1320). The common guide ball (1840) can be placed in the groove (1111) of the base (1110). The common guide ball (1840) can be placed in the groove (1321) of the OIS-y carrier (1320). The common guide ball (1840) can be in contact with the groove (1111) of the base (1110) and the groove (1321) of the OIS-y carrier (1320). The common guide ball (1840) can be in direct contact with the groove (1111) of the base (1110) and the groove (1321) of the OIS-y carrier (1320). The common guide ball (1840) can connect the groove (1111) of the base (1110) and the groove (1321) of the OIS-y carrier (1320).

[0427] The common guide ball (1840) may be placed between the base (1110) and the protrusion (1322) of the OIS-y carrier (1320). The common guide ball (1840) may be placed between the first side of the base (1110) where the yoke (1910) is placed and the protrusion (1332) of the OIS-y carrier (1320).

[0428] The common guide ball (1840) may include multiple balls. The common guide ball (1840) may include two balls. The common guide ball (1840) may include only two balls. The common guide ball (1840) may include a first ball and a second ball.

[0429] The lens actuator (1010) may include a pressure member. The pressure member may include an AF guide ball pressure member. The pressure member may include an OIS guide ball pressure member. The pressure member may include a common guide ball pressure member.

[0430] The lens actuator (1010) may include a yoke (1910). The pressurizing member may include the yoke (1910). The yoke (1910) may be an AF guide ball pressurizing yoke. The yoke (1910) may pressurize the AF guide ball (1810). The AF guide ball (1810) pressed by the yoke (1910) may be held between the fixed portion (1100) and the AF moving portion (1200). The AF guide ball (1810) pressed by the yoke (1910) may be held between the base (1110) and the AF carrier (1210). The AF guide ball (1810) pressed by the yoke (1910) may be pressed between the base (1110) and the AF carrier (1210). The yoke (1910) can keep the AF guide ball (1810) in contact with the fixed part (1100) and the AF moving part (1200). The yoke (1910) can keep the AF guide ball (1810) in contact with the base (1110) and the AF carrier (1210). The yoke (1910) can be arranged on the first side of the base (1110). The AF carrier (1210) can be pressed toward the base (1110) by the yoke (1910).

[0431] The lens actuator (1010) may include a human force magnet (1920). The pressurizing member may include a human force magnet (1920). The human force magnet (1920) may be arranged on a protrusion (1322) of the OIS-y carrier (1320). The human force magnet (1920) may act by force with the yoke (1910). The human force magnet (1920) may pressurize the common guide ball (1840). The human force magnet (1920) may pressurize the OIS-y guide ball (1830). The common guide ball (1840) may be sandwiched between the base (1110) and the OIS-y carrier (1320). The common guide ball (1840) may be in close contact between the base (1110) and the OIS-y carrier (1320). The OIS-y guide ball (1830) can be sandwiched between the AF carrier (1210) and the OIS-y carrier (1320). The OIS-y guide ball (1830) can be tightly fitted between the AF carrier (1210) and the OIS-y carrier (1320). The OIS-y carrier (1320) can be pressed toward the base (1110) by the attractive magnet (1920).

[0432] The lens actuator (1010) may include a yoke (1930). The pressurizing member may include the yoke (1930). The yoke (1930) may be an OIS-y guide ball and a common guide ball pressurizing yoke. The yoke (1930) may be placed on the OIS-y carrier (1320). The yoke (1930) may have an attractive force with the AF magnet (1410). The yoke (1930) may pressurize the common guide ball (1840). The yoke (1930) may pressurize the OIS-y guide ball (1830). The yoke (1930) may include an upper portion and a lower portion. As illustrated in (f) of FIG. 52, the width of the upper portion of the yoke (1930) may be narrower than the width of the lower portion. The OIS-y carrier (1320) can be pressed toward the AF carrier (1210) by the yoke (1930).

[0433] In an embodiment, the human magnet (1920) and the yoke (1930) may be provided together. Alternatively, only one of the human magnet (1920) and the yoke (1930) may be provided.

[0434] As a variation, as illustrated in (g) of FIG. 52, the lens actuator (1010) may include a yoke (1930a). The yoke (1930a) may interact with the AF magnet (1410). The yoke (1930a) may be positioned on the OIS-y carrier (1320). The yoke (1930a) may have a rectangular outer shape. The yoke (1930a) may include two holes (1931).

[0435] As a variation, as illustrated in FIG. 53, the lens actuator (1010) may include a yoke (1930b). The yoke (1930b) may be disposed on the OIS-y carrier (1320). The yoke (1930b) may be disposed on the protrusion (1322) of the OIS-y carrier (1320). The yoke (1930b) may be subject to an attractive force with the AF magnet (1410). As illustrated in (b) of FIG. 53, an attractive force (F1) may be applied to a first point (see A of FIG. 53), which is the center of one of the two yokes (1930b), and an attractive force (F4) may be applied to a second point (see B of FIG. 53), which is the center of the other yoke. At this time, the force in the F3 direction and the force in the F6 direction that decompose the human force (F1) cancel each other out, and the adhesion force of F2 and F5 can be applied. Through this, the OIS-y carrier (1320) can be adhered to at least one of the base (1110) and the AF carrier (1210).

[0436] The lens actuator (1010) may include a yoke (1940). The pressing member may include the yoke (1940). The yoke (1940) may be an OIS-x guide ball pressing yoke. The yoke (1940) may be disposed on the OIS-x carrier (1310). The yoke (1940) may bring the OIS-x carrier (1310) into close contact with the OIS-y carrier (1320). The yoke (1940) may reduce the possibility of a relatively large magnetic interference of the two-pole magnetized OIS-x magnet (1510). The OIS-x carrier (1310) may be centered on the OIS-y carrier (1320) by the yoke (1940). That is, the OIS-x carrier (1310) can be moved to the initial position with respect to the OIS-y carrier (1320) by the yoke (1940). The OIS-x carrier (1310) can be pressed toward the OIS-y carrier (1320) by the yoke (1940).

[0437] As a variation, as illustrated in (a) of FIG. 54, the lens actuator (1010) may include a yoke (1940a). The yoke (1940a) may be disposed on the fixing member (1100). The yoke (1940a) may be disposed on the substrate (1120). The yoke (1940a) may be disposed on the base (1110). The yoke (1940a) may be subject to an attractive force with the OIS-x magnet (1510).

[0438] A second embodiment of the present invention may include a structure that uses both an AF guide ball (1810) and a common guide ball (1840). In the second embodiment of the present invention, the OIS-y carrier (1320) may be supported by the base (1110) and the AF carrier (1210) through magnetic attraction with the AF magnet (1410) or attraction with the yoke (1910).

[0439] When supported only by the AF carrier (1210), it may be difficult to control shake due to unnecessary shaking or tilting occurring in the AF carrier (1210), or the quality of the image formed on the image sensor may be degraded. According to the second embodiment of the present invention, while arranging the OIS-y carrier (1320) within the AF carrier (1210), it is possible to take advantage of the structure in which the OIS-y carrier (1320) is located on the outside.

[0440]

[0441] Below, the auto focus (AF) operation of the lens driving device according to the second embodiment of the present invention is described.

[0442] The moving part may be positioned at a position spaced apart from both the top plate and the base (1110) of the cover in an initial position where no current is applied to the AF coil (1420). At this time, the moving part may be an AF moving part (1200). In addition, the moving part may include an AF moving part (1200) and an OIS moving part (1300).

[0443] When a forward current is applied to the AF coil (1420), the AF magnet (1410) can move upward in the optical axis direction due to the electromagnetic interaction between the AF coil (1420) and the AF magnet (1410). At this time, the AF carrier (1210) can move upward in the optical axis direction together with the AF magnet (1410). Furthermore, the OIS-y carrier (1320), the OIS-x carrier (1310), and the lens can move upward in the optical axis direction together with the AF carrier (1210). Accordingly, the distance between the lens and the image sensor (1060) can be changed, so that the focus of the image formed on the image sensor (1060) through the lens can be adjusted.

[0444] When a reverse current is applied to the AF coil (1420), the AF magnet (1410) can move downward in the optical axis direction due to the electromagnetic interaction between the AF coil (1420) and the AF magnet (1410). At this time, the AF carrier (1210) can move downward in the optical axis direction together with the AF magnet (1410). Furthermore, the OIS-y carrier (1320), the OIS-x carrier (1310), and the lens can move downward in the optical axis direction together with the AF carrier (1210). Accordingly, the distance between the lens and the image sensor (1060) can be changed, so that the focus of the image formed on the image sensor (1060) through the lens can be adjusted.

[0445] Meanwhile, during the movement of the AF magnet (1410), the AF sensor (1430) can detect the strength of the magnetic field of the AF magnet (1410) to detect the amount of movement or position of the lens in the optical axis direction. The amount of movement or position of the lens in the optical axis direction detected by the AF sensor (1430) can be used for auto focus feedback control.

[0446]

[0447] Below, the optical image stabilization (OIS) operation of the lens driving device according to the second embodiment of the present invention is described.

[0448] The moving part can be placed in the initial position without current being applied to the OIS-x coil (1520) and the OIS-y coil (1620). At this time, the moving part can be the OIS moving part (1300).

[0449] When current is applied to the OIS-x coil (1520), the OIS-x magnet (1510) can move in the x-axis direction perpendicular to the optical axis due to the electromagnetic interaction between the OIS-x coil (1520) and the OIS-x magnet (1510). At this time, the OIS-x carrier (1310) can move in the x-axis direction together with the OIS-x magnet (1510). Furthermore, the lens can move in the x-axis direction together with the OIS-x carrier (1310). More specifically, when a positive current is applied to the OIS-x coil (1520), the OIS-x magnet (1510), the OIS-x carrier (1310), and the lens can move in one direction on the x-axis. Additionally, when reverse current is applied to the OIS-x coil (1520), the OIS-x magnet (1510), the OIS-x carrier (1310), and the lens can move in the other direction along the x-axis.

[0450] When current is applied to the OIS-y coil (1620), the OIS-y magnet (1610) can move in the y-axis direction perpendicular to the optical axis due to the electromagnetic interaction between the OIS-y coil (1620) and the OIS-y magnet (1610). At this time, the OIS-y carrier (1320) and the OIS-x carrier (1310) can move in the y-axis direction together with the OIS-y magnet (1610). Furthermore, the lens can move in the y-axis direction together with the OIS-x carrier (1310). More specifically, when a positive current is applied to the OIS-y coil (1620), the OIS-y magnet (1610), the OIS-y carrier (1320), the OIS-x carrier (1310), and the lens can move in one direction on the y-axis. Additionally, when a reverse current is applied to the OIS-y coil (1620), the OIS-y magnet (1610), the OIS-y carrier (1320), the OIS-x carrier (1310), and the lens can move in the other direction along the y-axis.

[0451] Meanwhile, the OIS-x sensor (1530) can detect the strength of the magnetic field of the OIS-x magnet (1510) to detect the amount of movement or position of the OIS-x magnet (1510). The amount of movement or position detected by the OIS-x sensor (1530) can be used for x-axis direction shake correction feedback control. The OIS-y sensor (1630) can detect the strength of the magnetic field of the OIS-y magnet (1610) to detect the amount of movement or position of the OIS-y magnet (1610). The amount of movement or position detected by the OIS-y sensor (1630) can be used for y-axis direction shake correction feedback control.

[0452]

[0453] Hereinafter, a camera device according to a second embodiment of the present invention will be described with reference to the drawings.

[0454] Figure 60 is an exploded perspective view of a camera device according to a second embodiment of the present invention.

[0455] The camera device (1010A) may include a camera module.

[0456] The camera device (1010A) may include a lens module (1020). The lens module (1020) may include at least one lens. The lens may be positioned corresponding to the image sensor (1060). The lens module (1020) may include a lens and a barrel. The lens module (1020) may be coupled to the OIS-x carrier (1310) of the lens actuator (1010). The lens module (1020) may be coupled to the OIS-x carrier (1310) by screw coupling and / or adhesive. The lens module (1020) may move integrally with the OIS-X carrier (1310).

[0457] The camera device (1010A) may include a filter (1030). The filter (1030) may block light of a specific frequency band from passing through the lens module (1020) from being incident on the image sensor (1060). The filter (1030) may be arranged parallel to the xy plane. The filter (1030) may be arranged between the lens module (1020) and the image sensor (1060). The filter (1030) may be arranged on the sensor base (1040). Alternatively, the filter (1030) may be arranged on the base (1110). The filter (1030) may include an infrared filter. The infrared filter may block light of an infrared region from being incident on the image sensor (1060).

[0458] The camera device (1010A) may include a sensor base (1040). The sensor base (1040) may be disposed between the lens actuator (1010) and the printed circuit board (1050). The sensor base (1040) may include a protrusion (1041) on which a filter (1030) is disposed. An opening may be formed in a portion of the sensor base (1040) on which the filter (1030) is disposed so that light passing through the filter (1030) may be incident on the image sensor (1060). An adhesive member may couple or adhere the base (1110) of the lens actuator (1010) to the sensor base (1040). The adhesive member may additionally serve to prevent foreign substances from entering the interior of the lens actuator (1010). The adhesive member may include at least one of an epoxy, a thermosetting adhesive, and an ultraviolet-curable adhesive.

[0459] The camera device (1010A) may include a printed circuit board (PCB) (1050). The printed circuit board (1050) may be a substrate or a circuit board. A lens driving device (1010) may be disposed on the printed circuit board (1050). A sensor base (1040) may be disposed between the printed circuit board (1050) and the lens driving device (1010). The printed circuit board (1050) may be electrically connected to the lens driving device (1010). An image sensor (1060) may be disposed on the printed circuit board (1050). Various circuits, components, control units, etc. may be provided on the printed circuit board (1050) to convert an image formed on the image sensor (1060) into an electrical signal and transmit the converted signal to an external device.

[0460] The camera device (1010A) may include an image sensor (1060). The image sensor (1060) may be configured to form an image by receiving light passing through a lens and a filter (1030). The image sensor (1060) may be mounted on a printed circuit board (1050). The image sensor (1060) may be electrically connected to the printed circuit board (1050). For example, the image sensor (1060) may be coupled to the printed circuit board (1050) using surface mounting technology (SMT). As another example, the image sensor (1060) may be coupled to the printed circuit board (1050) using flip chip technology. The image sensor (1060) may be arranged so that its optical axis is aligned with that of the lens. That is, the optical axis of the image sensor (1060) and the optical axis of the lens can be aligned. The image sensor (1060) can convert light irradiated to the effective image area of ​​the image sensor (1060) into an electrical signal. The image sensor (1060) can be any one of a CCD (charge coupled device), a MOS (metal oxide semi-conductor), a CPD, and a CID.

[0461] The camera device (1010A) may include a motion sensor (1070). The motion sensor (1070) may be mounted on a printed circuit board (1050). The motion sensor (1070) may be electrically connected to a control unit (1080) through a circuit pattern provided on the printed circuit board (1050). The motion sensor (1070) may output rotational angular velocity information due to the movement of the camera device (1010A). The motion sensor (1070) may include a two-axis or three-axis gyro sensor or an angular velocity sensor.

[0462] The camera device (1010A) may include a control unit (1080). The control unit (1080) may be disposed on a printed circuit board (1050). The control unit (1080) may be electrically connected to a coil (1330) of a lens driving device (1010). The control unit (1080) may individually control the direction, intensity, amplitude, etc. of the current supplied to the coil (1330). The control unit (1080) may control the lens driving device (1010) to perform an autofocus function and / or an image stabilization function. Furthermore, the control unit (1080) may perform autofocus feedback control and / or image stabilization feedback control for the lens driving device (1010).

[0463] The camera device (1010A) may include a connector (1090). The connector (1090) may be electrically connected to a printed circuit board (1050). The connector (1090) may include a port for electrically connecting to an external device.

[0464]

[0465] Hereinafter, an optical device according to a second embodiment of the present invention will be described with reference to the drawings.

[0466] Fig. 61 is a perspective view of an optical device according to a second embodiment of the present invention. Fig. 62 is a perspective view of an optical device according to a modified example.

[0467] The optical device (1001) may include one or more of a mobile phone, a cell phone, a portable terminal, a mobile terminal, a smart phone, a smart pad, a portable smart device, a digital camera, a laptop computer, a digital broadcasting terminal, a PDA (Personal Digital Assistant), a PMP (Portable Multimedia Player), and a navigation device. The optical device (1001) may include any device for taking images or photographs.

[0468] The optical device (1001) may include a main body (1020). The optical device (1001) may include a camera device (1010A). The camera device (1010A) may be placed on the main body (1020). The camera device (1010A) may capture a subject. The optical device (1001) may include a display. The display may be placed on the main body (1020). The display may output one or more of a video or image captured by the camera device (1010A). The display may be placed on a first surface of the main body (1020). The camera device (1010A) may be placed on one or more of the first surface of the main body (1020) and a second surface opposite the first surface. As illustrated in FIG. 61, the camera device (1010A) may have a triple camera positioned vertically. As illustrated in FIG. 62, the camera device (1010A-1) may have a triple camera arranged horizontally. Alternatively, the triple camera may be arranged such that the straight lines connecting two optical axes of each of the three camera modules form a triangle. Furthermore, four camera devices may be arranged so that they face one direction. In this case, the straight lines connecting two optical axes of each of the four camera devices may form a square.

[0469]

[0470] Although the embodiments of the present invention have been described with reference to the attached drawings, those skilled in the art will appreciate that the present invention can be implemented in other specific forms without altering the technical concept or essential features thereof. Therefore, the embodiments described above should be understood to be illustrative in all respects and not restrictive.

Claims

1. Base; A cover disposed on the base and including a top plate and side plates; AF carrier placed within the above cover; An OIS carrier arranged within the above AF carrier; A first magnet and a first coil that move the AF carrier in the optical axis direction; A second magnet and a second coil that move the OIS carrier in a first direction perpendicular to the optical axis direction; A ball placed between the base and the AF carrier; and Including a stopper member that is coupled to the upper plate of the cover, At least one of the base and the AF carrier includes a groove in which the ball is placed, A lens actuator in which at least a portion of the stopper member is disposed in the groove.

2. In paragraph 1, The above ball is a lens driving device that moves along a rail formed by the groove in the optical axis direction between the base and the AF carrier.

3. In paragraph 1, A lens actuator, wherein the stopper member includes a protrusion arranged in the groove.

4. In paragraph 1, A lens actuator in which the above stopper member is formed of a different material from the above cover.

5. In paragraph 3, The above stopper member includes a body portion coupled to the upper plate of the cover, A lens driving device in which the protrusion of the stopper member extends from the body in the optical axis direction.

6. In paragraph 5, The top plate of the above cover includes a hole, The body part of the stopper member is coupled to the upper surface of the upper plate of the cover, The projection of the stopper member is a lens actuator that passes through the hole of the upper plate of the cover.

7. In paragraph 5, A lens actuator in which the body part of the stopper member is coupled to the lower surface of the upper plate of the cover.

8. In paragraph 3, A lens driving device in which the length of the protrusion of the stopper member in the optical axis direction is greater than the diameter of the ball.

9. In paragraph 3, The above ball includes a first ball having a first diameter and a second ball having a second diameter smaller than the first diameter, A lens driving device in which the length of the protrusion of the stopper member in the optical axis direction is greater than the diameter of the first ball.

10. In paragraph 9, A lens driving device in which the diameter of the first ball is 85% to 95% of the length of the protrusion of the stopper member in the optical axis direction.

Images