Camera actuator and camera module

Abstract

A camera module according to an embodiment of the present invention comprises: a housing having first to fourth side portions and having a cavity therein; a holder disposed in the cavity of the housing; a moving plate disposed on the holder; and a lens carrier disposed on the moving plate, wherein the housing includes a first frame coupled to the lower portions of the first to fourth side portions, and the housing may be made of a plastic material, and the first frame may be made of a metal material.

Description

Camera actuator and camera module

[0001] An embodiment of the invention relates to a camera actuator and a camera.

[0002] A camera is a device that captures subjects in photos or videos, and it is mounted on portable devices, drones, vehicles, etc. To improve image quality, a camera module or camera device may have an Image Stabilization (IS) function that corrects or prevents image shaking caused by user movement, an Auto Focusing (AF) function that automatically adjusts the distance between the image sensor and the lens to align the focal length of the lens, and a zooming function that increases or decreases the magnification of distant subjects through a zoom lens for shooting.

[0003] Meanwhile, as image sensors increase in pixel count, the resolution rises and the size of the pixels decreases; consequently, as pixels become smaller, the amount of light received over the same period of time decreases. Therefore, in high-pixel cameras, image blur caused by hand shake resulting from slow shutter speeds in dark environments can appear more severe. A representative example of image stabilization (IS) technology is optical image stabilization (OIS), which corrects motion by changing the path of light.

[0004] According to general OIS technology, camera movement can be detected through a gyro sensor, etc., and based on the detected movement, the lens can be tilted or moved, or the camera module including the lens and image sensor can be tilted or moved. When the lens or the camera module including the lens and image sensor is tilted or moved for OIS, additional space for tilting or moving needs to be secured around the lens or camera module.

[0005] Meanwhile, actuators for OIS can be positioned around the lens. In this case, the actuator for OIS may include an actuator responsible for tilting about an axis orthogonal to the optical axis. However, if the actuator for OIS moves the lens excluding the image sensor, image distortion occurs. In particular, distortion is present at edges or corners. Furthermore, since the image sensor and the lens are separated and only one of them tilts, there is a problem in that high-angle shake correction is difficult.

[0006] An embodiment of the invention may provide a camera actuator and a camera module having a vertical guide groove that moves a lens holder in the direction of the optical axis. An embodiment of the invention may provide a camera actuator and a camera module in which a part of a frame is coupled inside at least one of a housing that supports a lens holder and a lens holder. An embodiment of the invention may provide a camera actuator that exposes the outer surface of a ball guide portion of one or more frames in a vertical plane of the vertical guide groove and guides the movement of a ball member, and a camera module including the same. An embodiment of the invention aims to provide a camera actuator and a camera module applicable to ultra-slim, ultra-compact, and high-resolution cameras.

[0007] A camera module according to an embodiment comprises: a housing having first to fourth side portions and a cavity inside; a holder disposed in the cavity of the housing; a moving plate disposed on the holder; and a lens carrier disposed on the moving plate, wherein the housing comprises a first frame coupled to the lower portion of the first to fourth side portions, the housing may be made of plastic, and the first frame may be made of metal.

[0008] According to an embodiment of the invention, the holder includes a second frame coupled to the lower portions of the first to fourth side portions corresponding to the first to fourth side portions of the housing, respectively; the holder may be made of plastic, and the second frame may be made of metal. The holder may include first and second guide grooves perpendicular to the inner side of the first side portion of the housing; third and fourth guide grooves perpendicular to the outer side of the first side portion of the holder facing the first side portion of the housing; a first ball member disposed between the first guide groove and the third guide groove facing each other; and a second ball member disposed between the second guide groove and the fourth guide groove facing each other. A portion of the first frame may extend to one side and the other side of the first and second guide grooves, respectively, and a portion of the second frame may extend to one side and the other side of the third and fourth guide grooves, respectively.

[0009] According to an embodiment of the invention, the first frame includes a first subframe extending from the lower part of the second side portion opposite the first side portion of the housing to the lower part of the third and fourth side portions, and a second subframe coupled to the lower part of the first side portion of the housing, and the second frame may include a third subframe extending from the lower part of the second side portion opposite the first side portion of the holder to the lower part of the third and fourth side portions, and a fourth subframe disposed within the first side portion of the holder.

[0010] According to an embodiment of the invention, it may include first and second ball guide portions bent from the first subframe into the first and second guide grooves; third and fourth ball guide portions bent from the second subframe into the first and second guide grooves; fifth and sixth ball guide portions bent from the third subframe into the third and fourth guide grooves; and seventh and eighth ball guide portions bent from the fourth subframe into the third and fourth guide grooves. Each of the first to eighth ball guide portions may be exposed continuously or discontinuously in a vertical direction on the inner surface of the first to fourth guide grooves.

[0011] According to an embodiment of the invention, the moving plate may include a plurality of upper grooves extending in a first direction disposed at each upper corner, a plurality of lower grooves extending in a second direction at each lower corner, an upper ball disposed between each of the plurality of upper grooves and the lens carrier, and a lower ball disposed between each of the plurality of lower grooves and the holder.

[0012] According to an embodiment of the invention, the apparatus may include a first driving unit coupled to a first side portion of the housing and the holder facing each other; a second driving unit coupled to a second side portion of the holder and the lens carrier facing each other; and a third driving unit coupled to a third side portion of the holder and the lens carrier facing each other. The first driving unit may include a first magnet coupled to the outside of the first side portion of the holder, a first coil coupled inside the housing facing the first magnet, and a first yoke disposed outside the first coil, and may include a sub-substrate disposed between the first coil and the first yoke.

[0013] A camera actuator according to an embodiment of the invention comprises: a housing having first to fourth side portions and a cavity inside; a holder disposed in the cavity of the housing; a moving plate disposed on the holder; a lens carrier disposed on the moving plate; a first frame made of metal material coupled within the housing; a second frame made of metal material coupled within the holder; a first driving unit for AF driving on the first side portion of the housing and the first side portion of the holder; first and second guide grooves on both inner sides of the first side portion of the housing; third and fourth guide grooves on both outer sides of the first side portion of the holder; and a first ball member disposed between the first and third guide grooves. and includes a second ball member disposed between the second and fourth guide grooves, wherein the lower end of the second frame is disposed at a higher position than the lower end of the first frame, the first frame has a plurality of subframes, and both ends of each of the plurality of subframes are exposed to the inner surfaces of the first and second guide grooves, and the second frame has a plurality of subframes, and both ends of each of the plurality of subframes may be exposed to the inner surfaces of the third and fourth guide grooves.

[0014] According to an embodiment of the invention, the first frame includes a first subframe extending from the lower part of the second side portion opposite the first side portion of the housing to the lower part of the third and fourth side portions, and a second subframe coupled to the lower part of the first side portion of the housing; the second frame includes a third subframe extending from the lower part of the second side portion opposite the first side portion of the holder to the lower part of the third and fourth side portions, and a fourth subframe disposed within the first side portion of the holder; and may include first and second ball guide portions bent from the first subframe into the first and second guide grooves; third and fourth ball guide portions bent from the second subframe into the first and second guide grooves; fifth and sixth ball guide portions bent from the third subframe into the third and fourth guide grooves; and seventh and eighth ball guide portions bent from the fourth subframe into the third and fourth guide grooves. Each of the first to eighth ball guide portions may be exposed continuously or discontinuously in a vertical direction on the inner surface of the first to fourth guide grooves.

[0015] The camera actuator and camera module of the embodiment of the invention can suppress deformation of the lens holder and housing by coupling a frame inside the lens holder and housing. In addition, it can prevent damage or deformation of the guide groove(s) that guide the ball member placed between the lens holder and the housing. Accordingly, the optical reliability of the camera actuator and camera module can be improved.

[0016] The camera actuator and camera module of the embodiment can eliminate image distortion depending on the operating mode and improve heat generation issues. The camera actuator and camera module of the embodiment are equipped with a yoke so that the position of the OIS actuator is aligned to the center, thereby enabling stable correction during AF mode. Additionally, noise generation caused by the movement of the OIS actuator in the power-off state can be reduced. Furthermore, by attaching the yoke of the OIS actuator to the outer side of the substrate, an increase in size can be suppressed. The camera actuator and camera module of the embodiment can reduce impact by placing a moving plate between the lens holder and the lens carrier. Additionally, since the moving plate is coupled to the lens holder and the lens carrier in a mating structure, the mating structure prevents detachment due to external impact and mitigates secondary impact.

[0017] The reliability of the camera actuator and camera module of the invention can be improved, and the reliability of portable electronic devices such as mobile communication terminals, smartphones, and tablet PCs, and mobile electronic devices such as vehicles, ships, or drones having said camera module can be improved.

[0018] FIG. 1 is a perspective view of an actuator and a camera module according to an embodiment of the invention.

[0019] Figure 2 is a plan view of the actuator with the cover removed from Figure 1.

[0020] Figure 3 is an exploded perspective view of the actuator of Figure 2.

[0021] Figure 4 is a perspective view of the actuator of Figure 3 viewed from a different direction.

[0022] Figure 5 is a cross-sectional view of the actuator of Figure 2 on the AA side.

[0023] Figure 6 is a cross-sectional view of the BB side of the actuator of Figure 2.

[0024] FIG. 7 is a planar cross-sectional view illustrating the driving member of the actuator of FIG. 2.

[0025] Figure 8 is a partial enlarged view of Figure 7.

[0026] FIG. 9 is a perspective view of frames coupled to the housing and holder of FIG. 2.

[0027] FIG. 10 is a perspective view of FIG. 9 from a different direction.

[0028] Figure 11 is a partial enlarged view of Figure 10.

[0029] FIG. 12 is a cross-sectional view of the CC side of the actuator of FIG. 2.

[0030] FIG. 13 is a cross-sectional view of the actuator of FIG. 2 on the DD side.

[0031] FIG. 14 is an example of a perspective view showing the front view of the moving plate of FIG. 3 and 4.

[0032] FIG. 15 is an example of a perspective view showing the back side of the moving plate of FIG. 3 and 4.

[0033] FIG. 16 is a cross-sectional view of the actuator of FIG. 2 on the EE side.

[0034] FIG. 17 is a cross-sectional view of the FF side of the actuator of FIG. 2.

[0035] FIG. 18 is a cross-sectional view of the actuator of FIG. 2 on the GG side.

[0036] FIG. 19 is a cross-sectional view of the HH side of the actuator of FIG. 2.

[0037] FIG. 20 is a perspective view showing a modified example of a frame combined with the housing and holder of FIG. 2.

[0038] Fig. 21 is a partial enlarged view of Fig. 20.

[0039] FIG. 22 is a cross-sectional view showing a guide groove and a ball member combined with the frames of FIG. 20.

[0040] Figure 23 (A) and (B) are cross-sectional views showing examples of groove support portions of ball guide grooves as other examples of the invention.

[0041] FIG. 24 is a perspective view of a portable mobile device having an actuator and a camera module of the invention.

[0042] FIG. 25 is a plan view of a moving body having an actuator and a camera module of the invention.

[0043] Hereinafter, preferred embodiments of the present invention will be described in detail with reference to the attached drawings. However, the technical concept of the present invention is not limited to some of the described embodiments but can be implemented in various different forms, and within the scope of the technical concept of the present invention, one or more of the components among the embodiments may be selectively combined or substituted. Furthermore, terms used in the embodiments of the present invention (including technical and scientific terms) may be interpreted in a meaning generally understood by those skilled in the art to which the present invention belongs, unless explicitly and specifically defined otherwise. Terms used generally, such as those defined in advance, may be interpreted by considering their meaning in the context of the relevant technology.

[0044] Furthermore, 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. In this specification, the singular form may include the plural form unless specifically stated otherwise in the text, and when described as "at least one of A and B and C (or more than one)," it may include one or more of all combinations that can be formed from A, B, and C. Additionally, in describing the components of the embodiments of the present invention, terms such as first, second, A, B, (a), (b), etc., may be used. These terms are intended only to distinguish the component from other components and are not to limit the essence, order, or sequence of the component. Furthermore, when it is stated that a component is 'connected,' 'combined,' or 'joined' to another component, this may include not only cases where the component is directly connected, combined, or joined to the other component, but also cases where it is 'connected,' 'combined,' or 'joined' due to another component located between the component and the other component. Furthermore, when described as being formed or placed "above or below" each component, "above" or "below" includes not only cases where two components are in direct contact with each other, but also cases where one or more other components are formed or placed between the two components. Additionally, when expressed as "above or below," it may include the meaning of a downward direction as well as an upward direction relative to a single component.

[0045] In addition, prior to describing the embodiments of the invention, the first direction may refer to the X-axis direction shown in the drawings, and the second and third directions may be the Y-axis direction and the Z-axis direction orthogonal to the first direction. For example, the second direction may refer to the Y-axis direction shown in the drawings, which is perpendicular to the first direction. Furthermore, the third direction may refer to the Z-axis direction shown in the drawings, and the third direction may be a direction orthogonal to the first and second directions. Additionally, the Z-axis direction, which is the third direction shown in the drawings, may refer to the optic axis direction or a direction parallel thereto.

[0046]

[0047] Referring to FIG. 1, a camera module (1000) according to an embodiment may include a camera actuator (1001) and a lens barrel (1002) coupled to the camera actuator (1001). Additionally, the lens barrel (1002) according to an embodiment may be moved or transported by the camera actuator (1001) and the camera actuator (1001), and may include lenses. The direction in which the lenses are transported may include an optical axis direction in which the centers of the lenses are aligned with the optical axis. Hereinafter, the description is based on the camera actuator (1001) without lenses or a lens barrel. Furthermore, the camera actuator may be used interchangeably with 'lens transport device', 'lens driving device', 'lens moving device', etc. Furthermore, the camera module may be used interchangeably with camera device, camera device, imaging device, imaging device, imaging module, etc. The camera actuator (1001) according to the embodiment may be an AF (Auto Focus) and / or OIS (Optical Image Stabilizer) actuator. For example, the actuator (1001) may be an actuator that implements both AF and OIS. Additionally, the camera actuator (1001) according to the embodiment may be a zoom actuator that additionally performs movement of an additional moving lens group. The camera actuator (1001) according to the embodiment may be a voice coil motor, a micro actuator, a silicon actuator, etc., and may be applied in various ways such as electrostatic, thermal, bimorphic, and electrostatic force methods, but is not limited thereto. In this embodiment, it is described as an actuator using a magnet and a coil. Additionally, OIS may be used interchangeably with terms such as hand shake correction, optical image stabilization, optical image correction, and shake correction.

[0048] Referring to FIGS. 1 to 3, a camera actuator (1001) and a camera device according to an embodiment may include a housing (100), a cover (600) coupled to the upper and outer sides of the housing (100), a moving plate (200) disposed inside the housing (100), a holder (400), and a lens carrier (500). For convenience of explanation below, the sides of the housing (100), the cover (600), and the lens carrier (500) may include first and second side portions (S1, S2) disposed on both sides of a second direction (Y), and third and fourth side portions (S3, S4) disposed on both sides of a first direction (X) that is orthogonal to the second direction (Y). The first to fourth side portions (S1, S2, S3, S4) may be sides of each component or sides of a camera module. Here, the optical axis direction is a Z direction or a third direction orthogonal to the first and second directions (X,Y), the first direction is the X-axis direction in the drawing, and the second direction is the Y direction in the drawing.

[0049] The hole (601) of the cover (600) penetrates through the upper portion and corresponds to the cavity (102) of the housing (100) and the opening (501) of the lens carrier (500). The opening (501) of the lens carrier (500) may be circular in shape. The housing (100) and the moving plate (300), holder (400), and lens carrier (500) coupled to the housing (100) are disposed on the inside of the cover (600). The cover (600) may be formed of a metal or non-metal material. The opening (501) of the lens carrier (500) is an area where the lens(s) or lens barrel (1002) within the lens carrier (500) are disposed.

[0050] The inner side of the moving plate (200) has an opening (201) corresponding to the opening (501) of the lens carrier (500), and the opening (201) may have a polygonal shape. The inner side of the holder (400) has an opening (401) corresponding to the opening (501) of the lens carrier (500), and the opening (401) may have a polygonal shape. The cavity (102) of the housing (100) may have a polygonal shape and may be connected to the bottom opening (101).

[0051]

[0052] A moving plate (200) holder (400) and a lens carrier (500) may be disposed in the area between the cover (600) and the housing (100). The area between the cover (600) and the housing (100) may include a sensor base (not shown) on which an image sensor (not shown) is disposed. The image sensor is disposed on a substrate (not shown) disposed on the sensor base, and the substrate can transmit and receive signals through an external connection substrate.

[0053] The housing (100) may be located at the bottom of the camera actuator (1001). The housing (100) may have an open top and an open cavity (102). The bottom of the cavity (102) may be lower than the top surface, and the top view shape may be polygonal, elliptical, or circular. A moving plate (200), a holder (400), and a lens carrier (500) may be coupled within the cavity (102) of the housing (100). The moving plate (200), the holder (400), and the lens carrier (500) may be arranged along the optical axis direction within the housing (100). The moving plate (200) may be placed between the lens carrier (500) and the holder (400). The holder (400) may be placed at the bottom of the cavity (102) of the housing (100). The bottom of the cavity (102) of the housing (100) is provided with an open opening (101), and the lower part of the holder (400) may be exposed. As another example, the moving plate (300) may be placed between the housing (100) and the holder (400).

[0054]

[0055] A filter unit (not shown) is positioned between the last lens of the lens barrel (1002) and the image sensor. The image sensor may include a component capable of detecting incident light, such as a CCD (Charge Coupled Device) or CMOS (Complementary Metal Oxide Semiconductor). The image sensor senses the light incident through the lens and the filter unit and converts it into an electrical signal. The filter unit may include an infrared filter. The filter unit may allow light of a set wavelength band to pass through and block other wavelength bands. The filter unit may be coupled to the lower part of the holder (400). Additionally, a cover glass (not shown) may be placed on the surface of the image sensor to protect the image sensor. The center of the image sensor may be aligned with the lenses in the direction of the optical axis. The lens carrier (500) may move along the direction of the optical axis, or tilt or rotate in a direction perpendicular to the optical axis. A detailed explanation thereof will be provided later. And the housing (100) may be a 'fixing part', 'fixing member', or 'fixing element' in the camera actuator (1000). That is, the housing (100) may not move or rotate in the direction of the optical axis or in a direction perpendicular to the optical axis. Accordingly, the component connected or coupled with the housing (100) may also not move or rotate in the direction of the optical axis or in a direction perpendicular to the optical axis.

[0056]

[0057] A sub-substrate (950) may be included on the outer side of at least one or two side portions of the housing (100). The sub-substrate (950) may be a driving substrate or an external connection substrate. The sub-substrate (950) may be electrically connected to a driver chip or an external substrate. Accordingly, the plurality of pads (not shown) may be exposed on the outer side of the sub-substrate (950), making it easy to connect to the outside. The sub-substrate (950) may be folded along the sides of the housing (100) and adhered to the sides. The sub-substrate (950) includes first to third sub-substrates (951, 952, 953) connected to each other, and the first sub-substrate (951) and the second sub-substrate (952) are connected to each other and may be placed on the first and third side portions (S1, S3) of the housing (100). The second and third sub-substrates (952, 953) are connected to each other and may be placed on the third and second side portions (S3, S2) of the housing (100). The first and third sub-substrates (951, 953) may be placed on opposite sides of the housing (100). The sub-substrate (950) may be placed on an open area (111, 112, 113) where the side of the housing (100) is open. The sub-substrate (950) may be placed on the outside of the first to third side portions (S1, S2, S3) of the housing (100), and the fourth side portion (S4) of the housing (100) may not have a separate open area. The sub-substrate (950) may be provided as a flexible substrate (FPCB).

[0058]

[0059] The camera actuator (1001) may include a plurality of driving units. The plurality of driving units may include an AF driving unit and an OIS driving unit. The plurality of driving units may be disposed on different sides of the housing (100). The plurality of driving units includes first to third driving units (810, 820, 830), wherein the first driving unit (810) is an AF driving unit, and the second and third driving units (820, 830) are OIS driving units. The first driving unit (810) may be disposed inside the first side portion (S1) of the housing (100). The second and third driving units (820, 830) may be disposed inside the second side portion (S2) and the third side portion (S3) of the housing (100). The first drive unit (810) and the third drive unit (830) may be positioned on opposite sides in the second direction (Y).

[0060] The holder (400) and the lens carrier (500) may be moved together or separately by the driving unit and may be defined as a moving unit. The moving unit may rotate based on a first or second direction (X, Y) perpendicular to the optical axis direction. For example, the moving unit may rotate (Yaw) based on the first direction (X). Additionally, the moving unit may rotate (Pitch) based on the second direction (Y). The moving unit may include a moving plate (200), a holder (400), and a lens carrier (500) as a movable element. The moving unit may include a component disposed on the movable holder (400) or a component coupled to the moving plate (200). The moving unit may include movement in the optical axis direction and rotation or movement based on an axis direction (X, Y) perpendicular to the optical axis. That is, AF function and OIS function may be performed by the moving unit.

[0061] The camera module (1000) includes a fixed part and a moving part, the fixed part includes a housing (100), and the moving part may include first and second moving parts that move or rotate according to an operation mode. The first moving part includes a component that moves by an OIS function, and the second moving part may include a component that moves for an AF function. The first moving part may include a moving plate (200) and a lens carrier (500). The second moving part may include a holder (500).

[0062]

[0063] As shown in FIG. 5, in the case of rotation (Yaw, Pitch) in the first or second direction (X, Y), the moving plate (200) may move in at least one or both directions of the first and second directions. For example, the moving plate (200) may rotate (Pitch) on both sides of the second direction (Y) with respect to the first direction (X). The moving plate (200) may not rotate on both sides of the first direction (X) with respect to the second direction (Y). Additionally, the lens carrier (500) may rotate (Yaw) on both sides of the first direction (X) with respect to the second direction (Y) on the moving plate (200). Such rotation (Yaw, Pitch) in the first and second directions (X, Y) may be implemented by the electromagnetic force of the second and third driving units (820, 830). The first driving unit (810) can move the holder (400) up or down in the optical axis direction from the inside of the first side portion (S1) of the housing (100). The second driving unit (820) can tilt or rotate the lens carrier (500) with respect to the Y direction (Y), and the third driving unit (830) can tilt or rotate the lens carrier (500) with respect to the first direction (X).

[0064]

[0065] Referring to FIGS. 2, 5 to 8, the first driving unit (810) may include a first magnet (M1) and a first coil (C1). The first driving unit (810) includes a first yoke (YK1) disposed on the outer side of the first coil (C1). The first magnet (M1) is disposed on a first side portion (S1) of the holder (400), and the first side portion (S1) is provided with a first recess (481) that accommodates the first magnet (M1), and the first recess (481) is provided concavely inward from the first side portion (S1) of the holder (400). The first coil (C1) is positioned in the first coupling groove (181) on the side of the housing (100) facing the first magnet (M1), that is, in the first open area (111) of the first side portion (S1). The positions of the first magnet (M1) and the first coil (C1) can be interchanged. The first yoke (YK1) is coupled to the outside of the first coil (C1) and has an area or length greater than the outer area or length of the first coil (C1). The first yoke (YK1) has a magnetic material and can exert an attractive force with the first magnet (M1). The first yoke (YK1) can induce a magnetic field on the outside of the first coil (C1) to strengthen or shield the magnetic force in a desired direction. The first driving unit (810) generates an electromagnetic force with the first magnet (M1) by means of power supplied to the first coil (C1), and can move the holder (400) up or down in the optical axis direction by means of the electromagnetic force. As another example, the first magnet (M1) may be embedded in the lower part of the holder (400), and the first coil (C1) may be placed on the bottom of the housing (100).

[0066]

[0067] A movement guide member may be included to support and guide the movement of the holder (400) in the direction of the optical axis by the first driving unit (810). The movement guide member may include at least one of a ball member and an elastic spring. The movement guide member may be provided in an area between the lens carrier (500) and the holder (400) or in an area facing each other. The movement guide member may include, for example, ball members (851, 852) and guide grooves (BG1, BG2, BG3, BG4). The ball members (851, 852) are positioned on both sides of the first direction (X) of the first driving unit (810) and include a first ball member (851) and a second ball member (852). The first ball member (851) and the second ball member (852) may include a metal material. The interior of the first ball member (851) and the second ball member (852) may be made of resin material, and the outer surface may be made of metal material.

[0068] The first ball member (851) and the second ball member (852) may have a gap greater than the length of the first magnet (M1) in the second direction (Y). Each of the first and second ball members (851, 852) may be stacked in the optical axis direction, with one or more or two or more. At least one or both of the first and second ball members (851, 852) may have multiple balls, and any one of the multiple balls may have a relatively small size. That is, as shown in FIG. 12, a small size ball (B1) may be placed between large size balls. The first and second ball members (851, 852) may have the same number of balls. As another example, the first and second ball members (851, 852) may have different numbers of balls. As another example, either the first or second ball member (851, 852) may be removed.

[0069] The above guide grooves (BG1, BG2, BG3, BG4) may include first and second guide grooves (BG1, BG2) disposed on the inner side of the first side portion (S1) of the housing (100), and third and fourth guide grooves (BG3, BG4) of the holder (400). Each of the third and fourth guide grooves (BG3, BG4) faces each of the first and second guide grooves (BG1, BG2).

[0070] Each of the first to fourth guide grooves (BG1, BG2, BG3, BG4) has an elongated length in the direction of the optical axis and has a triangular shape, a V-shape, an angular shape with a curved surface, or a U-shape. The first guide groove (BG1) faces the third guide groove (BG3), and the second guide groove (BG2) faces the fourth guide groove (BG4). The combined shape of the first guide groove (BG1) and the third guide groove (BG3) provides a square shape, and the combined shape of the second guide groove (BG2) and the fourth guide groove (BG4) may also provide a square shape. A first ball member (851) is coupled to the second and fourth guide grooves (BG2, BG4), and a second ball member (852) is coupled to the first and third guide grooves (BG1, BG3). Each of the first and second ball members (851, 852) has a circular shape. The first and second ball members (851, 852) guide movement along the first to fourth guide grooves (BG1, BG2, BG3, BG4) when the holder (400) moves up or down in the optical axis direction by the first driving unit (810).

[0071]

[0072] The second driving unit (820) may include a second magnet (M2) and a second coil (C2). The second driving unit (820) includes a second yoke (not shown) disposed on the outside of the second coil (C2). The second magnet (M2) is disposed on the third side portion (S3) of the lens carrier (500), and the third side portion (S3) is provided with a second recess (581) that accommodates the second magnet (M2), and the second recess (581) is open to the outside of the third side portion (S3) of the lens carrier (500). The second coil (C2) is disposed in the second coupling groove (112) on the side of the housing (100) facing the second magnet (M2), that is, the second open area (112) of the third side portion (S3). The positions of the second magnet (M2) and the second coil (C2) may be interchanged. The second yoke (not shown) is coupled to the outside of the second coil (C2) or the outside of the second sub-substrate (952) and has an area or length greater than the outer area or length of the second coil (C2). The second yoke (not shown) has a magnetic material and may exert an attractive force with the second magnet (M2). The second yoke (not shown) can induce a magnetic field from the outside of the second coil (C2) to strengthen or shield the magnetic force in a desired direction. The second driving unit (820) generates an electromagnetic force with the second magnet (M2) by means of power supplied to the second coil (C2), and can rotate one or both sides of the second direction of the holder (400) with respect to the second direction (Y) by means of the electromagnetic force.

[0073]

[0074] The third driving unit (830) may include a third magnet (M3) and a third coil (C3). The third driving unit (830) includes a third yoke (not shown) disposed on the outside of the third coil (C3). The third magnet (M3) is disposed on the second side portion (S2) of the lens carrier (500), and the second side portion (S2) is provided with a third recess (583) that accommodates the third magnet (M3), and the third recess (583) is open to the outside of the second side portion (S2) of the holder (400). The third coil (C3) is disposed in the third open area (113) of the side of the housing (100) facing the third magnet (M3), that is, the third open area (113) of the second side portion (S2). The positions of the third magnet (M3) and the third coil (C3) may be interchanged. The third yoke (not shown) is coupled to the outside of the third coil (C3) or the outside of the third sub-substrate (952) and has an area or length greater than the outer area or length of the third coil (C3). The third yoke has a magnetic material and may exert an attractive force with the third magnet (M3). The third yoke can induce a magnetic field from the outside of the third coil (C3) to strengthen or shield the magnetic force in a desired direction. The third driving unit (830) generates an electromagnetic force with the third magnet (M3) by means of power supplied to the third coil (C3), and can rotate one or both sides of the first direction of the holder (400) with respect to the second direction (Y) by means of the electromagnetic force.

[0075]

[0076] To ensure driving accuracy of the first driving unit (810), a first Hall sensor (not shown) may be provided within the area of ​​the first driving unit (810). The first Hall sensor may be placed in the internal space of the first coil (C1) and electrically connected to the sub-substrate (950). The first Hall sensor is a position sensing sensor and can sense to correct the position of the lens carrier (500). To ensure driving accuracy of the second driving unit (820), a second Hall sensor (not shown) may be provided within the area of ​​the second driving unit (820). The second Hall sensor may be placed in the internal space of the second coil (C2), placed inside the second sub-substrate (952), and electrically connected to the second sub-substrate (952). To ensure driving accuracy of the third driving unit (830), a third Hall sensor (not shown) may be provided within the area of ​​the third driving unit (830). The third Hall sensor is disposed in the internal space of the third coil (C3) and on the third sub-substrate (953), and can be electrically connected to the third sub-substrate (953). The second and third Hall sensors are position sensing sensors and can sense to correct the position of the lens carrier (500).

[0077]

[0078] Referring to FIGS. 7 through 13, the housing (100) has a first frame (600) inside, and the holder (400) has a second frame (601) inside. The first frame (600) can reinforce the rigidity of the entire area or all sides of the housing (100). The second frame (601) can reinforce the rigidity of the entire area or all sides of the holder (400). That is, the first frame (600) and the second frame (601) can be provided with a material, such as a metal material, which has higher mechanical properties, such as hardness and strength, compared to a plastic material. The first frame (600) may be a metal material with higher strength than the material of the housing (100). The second frame (601) may be a metal material with higher strength than the material of the holder (400). The housing (100) and the holder (400) may be made of a plastic material. The first and second frames (600, 601) may be made of the same metal material or different metal material.

[0079] The first frame (600) may be composed of one or more frames inserted inside the housing (100) and may reinforce the rigidity of the lower portions of each side portion (S1, S2, S3, S4) of the housing (100). The second frame (601) may be composed of one or more frames inserted inside the holder (400) and may reinforce the rigidity of the lower portions of each side portion of the holder (400). The first frame (600) and the second frame (601) may reinforce the rigidity of the interior of the guide groove (BG1, BG2, BG3, BG4) and / or the surface of the guide groove (BG1, BG2, BG3, BG4).

[0080] At least one or both of the first frame (600) and the second frame (601) may be provided as metal frames. The first frame (600) and the second frame (601) may be physically spaced apart from each other. A portion of each of the first frame (600) and the second frame (601) may extend to the surface of the ball guide members. The first frame (600) may reinforce the internal and / or surface rigidity of the first and second guide grooves (BG1, BG2). The second frame (601) may reinforce the internal and / or surface rigidity of the third and fourth guide grooves (BG3, BG4).

[0081] The bottom of the first frame (600) may be positioned at a lower position than the bottom of the second frame (601). The area of ​​the region connected by an outline from the bottom of the first frame (600) may be larger than the area of ​​the region connected by an outline from the bottom of the second frame (601). The first frame (600) may be provided with two or more metal frames. The first frame (600) may include first and second sub-frames (610, 630). The sub-frames (610, 630) may be physically separated from each other. The second frame (601) may be provided with two or more metal frames. The second frame (601) may include third and fourth sub-frames (650, 670). The third and fourth sub-frames (650, 670) may be physically separated from each other.

[0082]

[0083] A portion of each of the first and second subframes (610, 630) may have a vertically extending extension. A portion of each of the first and second subframes (610, 630) extends into a portion of the first and second guide grooves (BG1, BG2). A portion of each of the third and fourth subframes (650, 670) may have a vertically extending extension. A portion of each of the third and fourth subframes (650, 670) extends into a portion of the third and fourth guide grooves (BG3, BG4).

[0084] The first subframe (610) includes first to third connecting parts (611, 612, 613) and first and second ball guide parts (MG1, MG2). The first to third connecting parts (611, 612, 613) are connected to the lower portions of the second, third, and fourth side portions (S2, S3, S4) of the housing (100) and are connected to each other. The first ball guide part (MG1) is bent vertically from one end of the second connecting part (612) which is positioned at the lower portion of the second side portion (S2) of the housing (100). The one end of the second connecting part (612) has a portion bent toward one side of the first side portion (S1) of the housing (100) and can be connected to the lower end of the first ball guide part (MG1). The second ball guide portion (MG2) is bent vertically from one end of the third coupling portion (613) positioned at the lower part of the third side portion (S3) of the housing (100). The one end of the third coupling portion (613) has a portion bent toward the other side of the first side portion (S1) of the housing (100) and can be connected to the lower end of the second ball guide portion (MG2).

[0085]

[0086] The first ball guide portion (MG1) extends vertically along one side of the first guide portion groove (BG1). The second ball guide portion (MG2) extends vertically along one side of the second guide portion groove (BG2). The first and second ball guide portions (MG1, MG2) may come into contact with the ball member (851, 853). The upper end of the first ball guide portion (MG1) may be positioned lower than the upper surface of the housing (100) or lower than the upper end of the first guide groove (BG1). The upper end of the second ball guide portion (MG2) may be positioned lower than the upper surface of the housing (100) or lower than the upper end of the second guide groove (BG2).

[0087] The upper portion of the first ball guide portion (MG1) may have a first coupling projection (EP1) bent outward from the upper end of the first guide groove (BG1). The first coupling projection (EP1) extends inwardly into the housing (100) and is coupled with the housing (100). The upper portion of the second ball guide portion (MG2) may have a second coupling projection (EP2) bent outward from the upper end of the second guide groove (BG2). The second coupling projection (EP2) extends inwardly into the housing (100) and is coupled with the housing (100). The first ball guide portion (MG1) extends continuously in a vertical direction and is exposed on one side of the first guide groove (BG1), and the first ball guide portion (MG2) extends continuously in a vertical direction and is exposed on one side of the second guide groove (BG2).

[0088]

[0089] The second subframe (630) includes a first support member (631) and third and fourth ball guide members (MG3, MG4). The first support member (631) is coupled to the lower part of the first side member (S1) of the housing (100), and the third ball guide member (MG3) is bent vertically from one end of the first support member (631) and provides the other side of the first guide groove (BG1). The fourth ball guide member (MG4) is bent vertically from the other end of the first support member (631) and provides the other side of the second guide groove (BG2). The upper part of the third ball guide member (MG3) may have a third coupling projection (EP3) bent outward from the upper end of the first guide groove (BG1). The third coupling projection (EP3) extends inwardly into the housing (100) and is coupled to the housing (100). The upper portion of the fourth ball guide portion (MG4) may have a fourth coupling projection (EP4) that is bent outward from the upper end of the second guide groove (BG2). The fourth coupling projection (EP4) extends inwardly into the housing (100) and is coupled with the housing (100).

[0090]

[0091] The third ball guide portion (MG3) is continuously extended in a vertical direction and exposed to the other side of the first guide groove (BG1), and the fourth ball guide portion (MG4) is continuously extended in a vertical direction and exposed to the other side of the second guide groove (BG2). The first ball guide portion (MG1) and the third ball guide portion (MG3) are spaced apart from each other and form different sides within the first guide groove (BG1). The second ball guide portion (MG2) and the fourth ball guide portion (MG4) are spaced apart from each other and form different sides within the second guide groove (BG2). The first and third ball guide portions (MG1, MG3) can be provided at a height that covers the entire area from the bottom to the top of the first ball member (851). The first and third ball guide sections (MG1, MG3) may be positioned in a vertical area between the bottom and top of the first guide groove (BG1), for example, in an area of ​​0% to 100% or 10% to 90% of the first guide groove (BG1). The second and fourth ball guide sections (MG2, MG4) may be provided at a height that covers the entire area from the bottom to the top of the second ball member (853). The second and fourth ball guide sections (MG2, MG4) may be positioned in an area between the bottom and top of the second guide groove (BG2), for example, in an area of ​​20% to 80% of the second guide groove (BG2).

[0092]

[0093] The third subframe (650) includes fourth to seventh connecting parts (651, 652, 653) and fifth and sixth ball guide parts (MG5, MG6). The fourth to seventh connecting parts (651, 652, 653) are connected to the lower portions of the second, third, and fourth side portions (S2, S3, S4) of the holder (400) and are connected to each other. The fifth ball guide part (MG5) is bent vertically from one end of the fifth connecting part (652) positioned at the lower portion of the second side portion (S2) of the holder (400). The one end of the fifth connecting part (652) has a portion bent toward one side of the first side portion (S1) of the holder (400) and can be connected to the lower end of the fifth ball guide part (MG5). The sixth ball guide portion (MG6) is bent vertically from one end of the sixth coupling portion (653) positioned at the lower part of the third side portion (S3) of the holder (400). The one end of the sixth coupling portion (653) has a portion bent toward the other side of the first side portion (S1) of the holder (400) and can be connected to the lower end of the sixth ball guide portion (MG6).

[0094] The fifth ball guide portion (MG5) extends vertically along one side of the third guide portion groove (BG3). The sixth ball guide portion (MG6) extends vertically along one side of the fourth guide portion groove (BG4). The fifth and sixth ball guide portions (MG5, MG6) may come into contact with the ball member (851, 853). The upper end of the fifth ball guide portion (MG5) may be positioned lower than the upper surface of the holder (400) or lower than the upper end of the third guide groove (BG3). The upper end of the sixth ball guide portion (MG6) may be positioned lower than the upper surface of the holder (400) or lower than the upper end of the fourth guide groove (BG4). The upper end of the fifth ball guide portion (MG5) may be positioned lower than the upper end of the first ball guide portion (MG1). The upper portion of the sixth ball guide portion (MG6) may be positioned lower than the upper portion of the second ball guide portion (MG2). The upper portions of the fifth ball guide portion (MG5) and the sixth ball guide portion (MG6) may be provided without connecting protrusions; if connecting protrusions are provided, problems may arise such as an increase in the width of the holder (400) or an increase in the weight of the holder (400). The fifth ball guide portion (MG5) extends continuously in the vertical direction and is exposed on one side of the third guide groove (BG3), and the sixth ball guide portion (MG6) extends continuously in the vertical direction and is exposed on one side of the fourth guide groove (BG4).

[0095]

[0096] The above-mentioned fourth subframe (670) includes a second support member (671) and seventh and eighth ball guide members (MG7, MG8). The second support member (671) is a vertically extending support plate and may have a height of at least 50% of the thickness of the holder (400). The lower end of the second support member (671) is positioned between the lower ends of the seventh and eighth ball guide members (MG7, MG8), and the upper end of the second support member (671) is positioned between the upper ends of the seventh and eighth ball guide members (MG7, MG8). The outer surface of the second support member (671) may be exposed to the outside of the holder (400).

[0097] The first magnet (M1) is disposed on the outer surface of the second support member (671). The area of ​​the second support member (671) may be larger than the area of ​​the first magnet (M1). The upper end of the second support member (671) may be placed on the same straight line as the upper end of the first magnet (M1) or positioned higher. The first extension member (672) is bent from one end of the second support member (671), and the seventh ball guide member (MG7) is bent from the first extension member (672) and provides the other side of the third guide groove (BG3). The first extension member (672) is disposed on one side of the first magnet (M1). The second extension part (673) is bent from the other end of the second support part (671), and the eighth ball guide part (MG8) is bent from the second extension part (673) and provides the other side of the fourth guide groove (BG4). The second extension part (673) is positioned on the other side of the first magnet (M1). The first and second extension parts (672, 673) are positioned on both sides of the first magnet (M1). The upper end of the seventh and eighth ball guide parts (MG7, MG8) may be lower than the upper end of the first and second ball guide parts (MG1, MG2). The upper end of the seventh and eighth ball guide parts (MG7, MG8) may be positioned at the same height as the upper end of the fifth and sixth ball guide parts (MG5, MG6).

[0098]

[0099] The 5th and 7th ball guide sections (MG5, MG7) may be provided at a height that covers the entire area from the bottom to the top of the 1st ball member (851). The 5th and 7th ball guide sections (MG5, MG7) may be placed in a vertical area between the bottom and top of the 3rd guide groove (BG3), for example, in an area of ​​30% to 70% of the 3rd guide groove (BG3). The 6th and 8th ball guide sections (MG6, MG8) may be provided at a height that covers the entire area from the bottom to the top of the 2nd ball member (853). The 6th and 8th ball guide sections (MG6, MG8) may be placed in a vertical area between the bottom and top of the 4th guide groove (BG4), for example, in an area of ​​30% to 70% of the 4th guide groove (BG4).

[0100] The 5th and 7th ball guide sections (MG5, MG7) are continuously extended in a vertical direction and exposed on one side and the other side of the 3rd guide groove (BG3), and the 6th and 8th ball guide sections (MG6, MG8) are continuously extended in a vertical direction and exposed on one side and the other side of the 4th guide groove (BG4). The 5th ball guide section (MG5) and the 7th ball guide section (MG7) are spaced apart from each other and form different sides within the 3rd guide groove (BG3). The 6th ball guide section (MG6) and the 8th ball guide section (MG8) are spaced apart from each other and form different sides within the 4th guide groove (BG4).

[0101]

[0102] The first and seventh ball guide sections (MG1, MG7) face each other on both sides of the first ball member (381), and the third and fifth ball guide sections (MG3, MG5) face each other on both sides of the first ball member (381). The second and eighth ball guide sections (MG2, MG8) face each other on both sides of the second ball member (383), and the fourth and sixth ball guide sections (MG4, MG6) face each other on both sides of the second ball member (383). The first to eighth ball guide sections (MG1-MG8) are in contact with the outer surfaces of the first and second ball members (851, 853), and can prevent the problem of surface wear due to the movement of the ball members (851, 853). That is, deformation of the ball guide members due to vertical movement of the ball members during AF mode can be prevented by the metal frame. In addition, focusing errors caused by the movement of the ball members (851, 853) can be prevented.

[0103]

[0104] The first frame (600) may have support pins (P1, P2, P3) exposed or protruding to the outside of the first, third, and fourth side portions (S1, S3, S4) of the housing (100). The second coupling portion, the third coupling portion, and the first support portion may have a plurality of support pins (P1, P2, P3) protruding to the outside. The support pins (P1, P2, P3) may be exposed to the outside of the first, third, and fourth side portions (S1, S3, S4) of the housing (100). The second frame (601) may have support pins (P5, P6, P7) exposed or protruding to the outside of the first, third, and fourth side portions (S1, S3, S4) of the holder (400). The above-mentioned fifth connecting part, the above-mentioned sixth connecting part, and the above-mentioned second supporting part may have a plurality of supporting pins (P5, P6, P7) protruding outwardly. The supporting pins (P5, P6, P7) may be exposed to the outside of the first, third, and fourth side parts (S1, S3, S4) of the holder (400). The supporting pins (P1-P3, P5-P7) are parts that are supported and cut during the injection molding of each frame (600, 601). The surface of the supporting pins (P1-P3, P5-P7) may be plated to prevent oxidation.

[0105] As shown in FIGS. 11 and 7, the second support member (671) of the fourth subframe (670) has pins (P5) protruding from both lower sides, and recesses (R1, R2) may be provided on both sides of the pins (P5) to strengthen the connection with the holder (400). The recesses (R1, R2) are positioned on both sides of the pins (P5) and may have a concave shape extending upward from the bottom of the second support member (671).

[0106]

[0107] As shown in FIGS. 14 to 19, the moving plate (200) has an opening (201) in the center and is coupled between the holder (400) and the lens carrier (500).

[0108] The moving plate (200) has a plurality of first upper grooves (210) and a plurality of first lower grooves (220) on its upper circumference, and each of the plurality of first upper grooves (210) and each of the plurality of first lower grooves (220) are positioned on opposite sides of the moving plate (220). The direction in which the grooves extend from the plurality of first upper grooves (210) and the plurality of first lower grooves (220) is orthogonal to each other. The plurality of first upper grooves (210) are positioned on each corner area of ​​the upper surface of the moving plate (200). Each of the plurality of first upper grooves (210) extends in a second direction (Y), and the upper balls (230) are seated thereon. The upper balls (230) can be moved along the first upper groove (210) in the second direction (Y).

[0109] The lower circumference of the lens carrier (500) is provided with a plurality of second lower grooves (530) corresponding to each of the first upper grooves (210), each of the plurality of second lower grooves (530) extends in the second direction (Y) and accommodates the upper balls (230) respectively. The upper balls (230) can be moved along the second direction (Y) along the first upper groove (210) and the second lower groove (530).

[0110]

[0111] A plurality of first lower grooves (220) of the moving plate (200) are positioned on each corner area of ​​the lower surface of the moving plate (200). Each of the plurality of second lower grooves (210) extends in a first direction (X) and is seated with the lower balls (240). The lower balls (240) can be moved along the first direction (X) along the first lower grooves (240). The upper circumference of the holder (400) is provided with a plurality of second upper grooves (420) corresponding to each of the first lower grooves (230), and each of the plurality of second upper grooves (420) extends in the first direction (X) and is received with the lower balls (240). The lower balls (240) can be moved along the first direction (X) along the first lower grooves (240) and the second upper grooves (420). The above moving plate (200) can be moved in the first and second directions (X, Y) along the upper ball (220) and lower ball (240), and can perform an OIS function together with the lens carrier (500) and the holder (400) by electromagnetic force by the second and third driving units (820, 830).

[0112]

[0113] The moving plate (200) may have the shape of a polygonal frame with a through hole in the interior and may be provided with connecting parts (211, 212, 213, 214) and supporting parts (221, 222, 223, 224) that respectively support the first upper groove (210) and the first lower groove (230). The first connecting part (211) is connected between the first and second supporting parts (221, 222) which are bent in an up direction from the second and fourth connecting parts (212, 214). The upper surface of the first and second supporting parts (221, 222) may be a plane with the same surface as the upper surface of the first connecting frame (211). The third connecting part (213) is connected between the third and fourth supporting parts (223, 224) which are bent in an up direction from the second and fourth connecting parts (212, 214). The upper surface of the first and second support members (221, 222) and the upper surface of the third and fourth support members (223, 224) are in the same plane as the upper surface of the third connecting support member (213), and may be positioned higher than the upper surface of the third connecting support member (213). The second and third connecting members (212, 213) are bent downward by the lower protruding area of ​​the lens carrier (500) on which the second and third magnets (M2, M3) are arranged, and the lower protruding area of ​​the lens carrier (500) arranged on the second connecting member (212) is accommodated on the fourth connecting member (214). Here, the two protruding areas of the lens carrier (500) are provided with a structure that is symmetrical to each other, so that they can be moved stably.

[0114] FIGS. 20 to 22 are examples of modifications to the ball guide portion.

[0115] Referring to FIGS. 20 to 22 and FIG. 7, the first and second ball guide portions (MG11, MG12) of the first subframe (610) are provided with coupling protrusions (EP11, EP12), and the coupling protrusions (EP11, EP12) are bent outwardly even on the inner surface of the first and second ball guide portions (MG11, MG12) and can be coupled with the housing (100). The third and fourth ball guide portions (MG13, MG14) of the second subframe (630) are provided with coupling protrusions (EP13, EP14), and the coupling protrusions (EP13, EP14) are bent outwardly even on the inner surface of the third and fourth ball guide portions (MG13, MG14) and can be coupled with the housing (100).

[0116] The 5th and 6th ball guide sections (MG15, MG16) of the 3rd subframe (650) are provided with coupling protrusions (EP15, EP16), and the coupling protrusions (EP15, EP16) are bent outwardly even on the inner surface of the 5th and 6th ball guide sections (MG15, MG16) and can be coupled with the holder (400). The 7th and 8th ball guide sections (MG17, MG18) of the 4th subframe (679) are provided with coupling grooves (EP17, EP18), and the coupling grooves (EP17, EP18) are areas where the center of the 7th and 8th ball guide sections (MG17, MG18) is removed, and can be coupled with the holder (400). Accordingly, the 1st to 8th ball guide sections (MG11-MG18) are partially exposed on the inner surface of the 1st to 4th guide grooves (BG1-BG4). That is, the first to eighth ball guide portions (MG11-MG18) are discontinuously exposed on the vertical inner surface of the first to fourth guide grooves (BG1-BG4) and can come into contact with the ball members (851, 853).

[0117]

[0118] FIG. 23 is another example of a support for a ball guide groove, comprising a first groove support member (MG01) disposed between the housing (100) and the first and second guide grooves (BG1, BG2), wherein the first groove support member (MG01) is a structure bent from the outer frame (670A). The outer frame (670A) and the first groove support member (MG01) are disposed within the housing (100). The first groove support member (MG01) supports the outer side of the first and second guide grooves (BG1, BG2). It comprises a second groove support member (MG02, MG03) disposed between the holder (400) and the third and fourth guide grooves (BG3, BG4), wherein the second groove support member (MG02, MG03) supports the outer side of the third and fourth guide grooves (BG3, BG4). The second groove support (MG02, MG03) is a structure bent from the inner frame (630A). The second groove support (MG02, MG03) and the inner frame (630A) are positioned inside the holder (400).

[0119] The second groove support (MG02, MG03) may have the same shape as or a different shape from the outer shape of the first groove support (MG01). The first groove support (MG01) may have a rectangular shape. The second groove support (MG02, MG03) may have a rectangular shape or a triangular shape. The gap between the first and second groove support (MG01, MG02, MG03) and the guide groove (BG01-BG04) may be 0.1 mm or more, for example, in the range of 0.1 mm to 2 mm.

[0120] FIG. 24 is a perspective view of a mobile terminal with a camera module applied according to an embodiment.

[0121] As shown in FIG. 24, the mobile terminal (1500) of the embodiment may include a camera module (1000), a flash module (1530), and an autofocus device (1510) provided on the rear. The camera module (1000) may include an image shooting function and an autofocus function. For example, the camera module (1000) may include an autofocus function using an image. The camera module (1000) processes still images or video frames obtained by an image sensor in a shooting mode or a video call mode. The processed image frames may be displayed on a predetermined display unit and may be stored in memory. A camera (not shown) may also be placed on the front of the mobile terminal body. For example, the camera module (1000) may include a first camera module (1000A) and a second camera module (1000B), and OIS may be implemented along with an AF function by the first camera module (1000A). The flash module (1530) may include a light-emitting element that emits light internally. The flash module (1530) may be operated by the operation of the camera of the mobile terminal or by the control of the user. The autofocus device (1510) may include one of the packages of surface light-emitting laser elements as a light-emitting part. The autofocus device (1510) may include an autofocus function using a laser. The autofocus device (1510) may be mainly used in conditions where the autofocus function using the image of the camera module (1000) is degraded, such as in close proximity of 10m or less or in a dark environment. The autofocus device (1510) may include a light-emitting part including a vertical cavity surface-emitting laser (VCSEL) semiconductor element and a light-receiving part that converts light energy into electrical energy, such as a photodiode.

[0122]

[0123] FIG. 25 is a perspective view of a vehicle with a camera module applied according to an embodiment.

[0124] As shown in FIG. 25, a moving body (2) according to an embodiment of the invention is an example of a vehicle and includes a camera system, wherein the camera system includes an image generation unit (31), a first information generation unit (12), a second information generation unit (21, 22, 23, 24, 25, 26), and a control unit (14). The image generation unit (31) may include a camera module disclosed in the embodiment that is placed in the vehicle and can generate a front image of the vehicle or an interior image of the vehicle by photographing the front of the vehicle or / and the driver. At least one of the first information generation unit (12) and the second information generation unit (21, 22, 23, 24, 25, 26) may include a camera module disclosed in the embodiment.

[0125] Additionally, the image generation unit (31) can use the camera module to generate images of the vehicle's surroundings or the driver in one or more directions as well as the front of the vehicle. Here, the front image and the surrounding image may be digital images and may include color images, black and white images, and infrared images. Additionally, the front image and the surrounding image may include still images and video images. The image generation unit (31) provides the driver image, the front image, and the surrounding image to the control unit (14). Subsequently, the first information generation unit (12) may include at least one radar or / and camera placed on the vehicle and generates first detection information by detecting the front of the vehicle. Specifically, the first information generation unit (12) is placed on the vehicle and generates first detection information by detecting the position and speed of vehicles located in front of the vehicle, the presence and location of pedestrians, etc.

[0126] By using the first detection information generated by the first information generation unit (12), the distance between the vehicle and the vehicle in front can be controlled to be maintained at a constant level, and the stability of vehicle operation can be enhanced in specific cases that are pre-set, such as when the driver wants to change the driving lane of the vehicle or when reverse parking. The first information generation unit (12) provides the first detection information to the control unit (14). Subsequently, the second information generation unit (21, 22, 23, 24, 25, 26) generates second detection information by detecting each side of the vehicle based on the front image generated by the image generation unit (11) and the first detection information generated by the first information generation unit (12). Specifically, the second information generation unit (21, 22, 23, 24, 25, 26) may include at least one radar or / and camera placed on the vehicle, and may detect the position and speed of vehicles located on the side of the vehicle or capture images. Here, the second information generating unit (21, 22, 23, 24, 25, 26) may be positioned on both sides of the front, side mirror, and rear of the vehicle, respectively. This vehicle camera system may be equipped with the following camera module and can provide or process information obtained through the front, rear, each side, or corner area of ​​the vehicle to the user to protect the vehicle and objects from automatic driving or surrounding safety.

[0127] Although the invention has been described above with reference to embodiments, this is merely illustrative and does not limit the invention. Those skilled in the art will understand that various modifications and applications not exemplified above are possible within the scope of the essential characteristics of the embodiments. For example, each component specifically shown in the embodiments may be modified and implemented. Furthermore, differences related to such modifications and applications should be interpreted as being included within the scope of the invention as defined in the appended claims.

Claims

1. A housing having first to fourth side portions and a cavity inside; A holder disposed in the cavity of the above housing; A moving plate disposed on the above holder; and It includes a lens carrier disposed on the moving plate above, The above housing includes a first frame coupled to the lower part of the first to fourth side portions, and The above housing is made of plastic, and The first frame above is a camera module made of metal.

2. In Paragraph 1, The holder includes a second frame coupled to the lower portions of the first to fourth side portions corresponding to the first to fourth side portions of the housing, respectively. The above holder is made of plastic, and The above second frame is a camera module made of metal.

3. In Paragraph 2, First and second guide grooves perpendicular to the inner side of the first side portion of the housing; Third and fourth guide grooves perpendicular to the outer side of the first side portion of the holder facing the first side portion of the housing; A first ball member disposed between the first guide groove and the third guide groove facing each other; and A camera module comprising a second ball member disposed between the second guide groove and the fourth guide groove facing each other.

4. In Paragraph 3, A portion of the first frame is extended on one side and the other side of the first and second guide grooves, respectively, and A camera module in which a portion of the second frame is extended on one side and the other side of the third and fourth guide grooves, respectively.

5. In Paragraph 4, The first frame comprises a first subframe extending from the lower part of the second side portion opposite the first side portion of the housing to the lower part of the third and fourth side portions, and a second subframe coupled to the lower part of the first side portion of the housing. A camera module comprising: a second frame including a third sub-frame extending from the lower part of the second side portion opposite the first side portion of the holder to the lower part of the third and fourth side portions, and a fourth sub-frame disposed within the first side portion of the holder.

6. In Paragraph 5, First and second ball guide portions bent from the first subframe into the first and second guide grooves; Third and fourth ball guide portions bent from the second subframe into the first and second guide grooves; Fifth and sixth ball guide portions bent from the third subframe into the third and fourth guide grooves; A camera module comprising 7th and 8th ball guide portions bent from the 4th subframe into the 3rd and 4th guide grooves.

7. In Paragraph 6, A camera module in which each of the first to eighth ball guide portions is exposed continuously or discontinuously in a vertical direction to the inner surface of the first to fourth guide grooves.

8. In any one of paragraphs 1 through 7, The above-described moving plate comprises a plurality of upper grooves extending in a first direction arranged at each upper corner, a plurality of lower grooves extending in a second direction at each lower corner, an upper ball arranged between each of the plurality of upper grooves and the lens carrier, and a lower ball arranged between each of the plurality of lower grooves and the holder, forming a camera module.

9. In Paragraph 8, A first driving part coupled to the first side portion of the housing facing each other and the holder; A second driving part coupled to the second side portion of the holder facing each other and the lens carrier; A camera module comprising a third side portion of the holder facing each other and a third driving portion coupled to the lens carrier.

10. In Paragraph 9, The first driving unit comprises a first magnet coupled to the outer side of a first side portion of the holder, a first coil coupled within the housing facing the first magnet, and a first yoke disposed on the outer side of the first coil. A camera module comprising a sub-substrate disposed between the first coil and the first yoke.

11. A housing having first to fourth side portions and a cavity inside; A holder disposed in the cavity of the above housing; A moving plate disposed on the above holder; A lens carrier disposed on the above-mentioned moving plate; A first frame made of metal material coupled within the above housing; A second frame made of metal material coupled within the above holder; A first driving unit for AF driving on the first side portion of the housing and the first side portion of the holder; First and second guide grooves on both inner sides of the first side portion of the above housing; Third and fourth guide grooves on both outer sides of the first side portion of the holder; A first ball member disposed between the first and third guide grooves; and It includes a second ball member disposed between the second and fourth guide grooves, The bottom of the second frame is positioned higher than the bottom of the first frame, and The first frame has a plurality of subframes, and each of the plurality of subframes has both ends exposed to the inner surfaces of the first and second guide grooves. A camera module in which the second frame has a plurality of subframes, and each of the plurality of subframes has both ends exposed to the inner surfaces of the third and fourth guide grooves.

12. In Paragraph 11, The first frame comprises a first subframe extending from the lower part of the second side portion opposite the first side portion of the housing to the lower part of the third and fourth side portions, and a second subframe coupled to the lower part of the first side portion of the housing. The second frame includes a third sub-frame extending from the lower part of the second side portion opposite the first side portion of the holder to the lower part of the third and fourth side portions, and a fourth sub-frame disposed within the first side portion of the holder. First and second ball guide portions bent from the first subframe into the first and second guide grooves; Third and fourth ball guide portions bent from the second subframe into the first and second guide grooves; Fifth and sixth ball guide portions bent from the third subframe into the third and fourth guide grooves; A camera module comprising 7th and 8th ball guide portions bent from the 4th subframe into the 3rd and 4th guide grooves.

13. In Paragraph 12, A camera module in which each of the first to eighth ball guide portions is exposed continuously or discontinuously in a vertical direction to the inner surface of the first to fourth guide grooves.

Images