Camera actuator and camera module

Abstract

According to an embodiment of the present invention, a camera module comprises: a housing including first to fourth side surfaces; a moving plate in the housing; a sensor base on the moving plate; a sensor substrate having an image sensor on the sensor base; a holder having a through hole therein and disposed on the sensor substrate; a lens carrier having a lens inside the holder; a first driving part disposed on the first side surface of the housing and coupled to the holder and the lens carrier; a second driving part coupled to the holder and the third side surface of the housing; a third driving part coupled to the holder and the fourth side surface of the housing; and a fourth driving part disposed between the bottom part of the housing and the moving plate, wherein the lens carrier may be moved in the optical axis direction by the first driving part, and the lens holder may be tilted in different axial directions by the second to fourth driving parts.

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, and the like. To enhance image quality, camera modules or devices may feature Image Stabilization (IS) functions that correct or prevent image shake caused by user movement, Auto Focusing (AF) functions that automatically adjust the distance between the image sensor and the lens to align the lens's focal length, and Zooming functions that increase or decrease the magnification of distant subjects using a zoom lens. Meanwhile, as image sensors increase in pixel count, the resolution rises and the pixel size decreases; consequently, as pixels become smaller, the amount of light received over the same period of time decreases. Therefore, higher-pixel cameras may exhibit more severe image blur caused by hand shake resulting from slower shutter speeds in dark environments. A representative Image Stabilization (IS) technology is Optical Image Stabilization (OIS), which corrects movement by altering the path of light.

[0003] According to conventional OIS technology, camera movement is detected via devices such as a gyro sensor, and based on the detected movement, the lens can be tilted or moved, or the camera module containing the lens and image sensor can be tilted or moved. When the lens or the camera module containing the lens and image sensor is tilted or moved for OIS, additional space for tilting or movement must be secured around the lens or camera module. Meanwhile, actuators for OIS can be placed around the lens. In this case, the actuators for OIS may include actuators responsible for tilting about an axis orthogonal to the optical axis. However, if the actuators for OIS move the lens while excluding the image sensor, image distortion occurs. In particular, distortion is present at edges or corners. Furthermore, since the image sensor and lens are separated and only one of them is tilted, there is a problem in that shake correction for high-wide angles is difficult.

[0004] An embodiment of the invention provides a camera actuator and a camera module in which an image sensor, a lens, and a substrate rotate, move, or tilt together. An embodiment of the invention provides a camera actuator and a camera module in which a first OIS driving unit is positioned on both sides of a lens holder and a second OIS driving unit is positioned at the bottom of a sensor base. An embodiment of the invention may provide a camera actuator and a camera module capable of moving or tilting components such as a lens carrier, a lens holder, a sensor base, and a moving plate, excluding the housing. An embodiment of the invention may provide a camera actuator with low heat generation and a camera module including the same, as the substrate, lens, and image sensor move together. An embodiment of the invention may provide a camera actuator capable of moving or tilting all components excluding the housing, and a camera module including the same, as the sensor substrate, lens, and image sensor move together, resulting in low heat generation. 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.

[0005] A camera module according to an embodiment comprises: a housing including first and second sides facing each other in a first direction, and third and fourth sides facing each other in a second direction different from the first direction; a moving plate disposed within the housing; a sensor base disposed on the moving plate; a sensor substrate disposed on the sensor base and having an image sensor; a holder disposed on the sensor substrate having a through hole inside; a lens carrier disposed inside the holder and having a lens; a first driving unit disposed on the first side of the housing and coupled to the holder and the lens carrier; a second driving unit coupled to the holder and the third side of the housing; a third driving unit coupled to the holder and the fourth side of the housing; and a fourth driving unit disposed between the bottom part of the housing and the moving plate, wherein the lens carrier is moved in the direction of the optical axis by the first driving unit, and the lens holder can be tilted about a first axis parallel to the first direction by the second and third driving units, and tilted about a second axis parallel to the second direction by the fourth driving unit.

[0006] According to an embodiment of the invention, the first driving unit may include a first magnet coupled to the outer side of the first side of the lens carrier, a first coil coupled to a first coupling groove on the first side of the holder facing the first magnet, and a first yoke disposed inside the first magnet, and may include a driving substrate disposed outside the first coil and connected to the sensor substrate. It may include a first holding yoke disposed inside the first coil and facing the first magnet, and a first Hall sensor.

[0007] According to an embodiment of the invention, the housing includes a sub-substrate disposed on the lower surface, and the sub-substrate may include first and second sub-substrates extending to the third and fourth sides of the housing.

[0008] According to an embodiment of the invention, the second driving unit comprises a second magnet coupled to the third side of the holder, a second coil coupled to a second coupling groove on the third side of the housing facing the second magnet, and a second yoke disposed inside the second magnet, wherein a second Hall sensor is disposed inside the second coil, and the second coil and the second Hall sensor may be disposed inside the first sub-substrate. The third driving unit comprises a third magnet coupled to the fourth side of the holder, a third coil coupled to a fourth coupling groove on the fourth side of the housing facing the third magnet, and a third yoke disposed inside the third magnet, wherein a third Hall sensor is disposed inside the third coil, and the third coil and the third Hall sensor may be disposed inside the second sub-substrate. The fourth driving unit comprises a fourth magnet coupled within the sensor base, a fourth coil disposed on the sub-substrate facing the fourth magnet, and a fourth yoke disposed between the fourth magnet and the sub-substrate, and may have a second holding yoke disposed inside the fourth coil and a fourth Hall sensor.

[0009] According to an embodiment of the invention, the bottom portion of the housing has an open area open in the center and a storage portion stepped from the lower surface of the bottom portion, the moving plate is disposed on the open area, the sub-substrate is disposed on the storage portion, and the open area may overlap with the moving plate, the fourth magnet, and the fourth coil in the direction of the optical axis. The moving plate includes a coupling hole penetrating in the interior facing the second holding yoke; a first ball upper hole disposed on both sides of the first direction of the lower surface relative to the coupling hole; and a second ball lower hole disposed on both sides of the second direction of the upper surface relative to the coupling hole, and may include first and second balls partially disposed in the first ball lower holes and the first ball upper holes.

[0010] According to an embodiment of the invention, the housing includes a first ball lower groove disposed on both sides of a first direction of the bottom portion, wherein the first ball is disposed in the first ball upper hole and the first ball lower groove, respectively, and the sensor base includes a second ball upper groove disposed on both sides of a second direction of the bottom portion, wherein the second ball can be disposed in the second ball lower hole and the second ball upper groove, respectively.

[0011] According to an embodiment of the invention, the sub-substrate includes first and second connecting portions protruding to both sides of the first and second sides of the housing, and the first and second connecting portions may have a plurality of pads. It includes a substrate portion extending along the first to fourth sides of the housing and connected to the driving substrate, and the substrate portion may be connected to an outer connector substrate.

[0012] A camera module according to an embodiment may include: a housing having first to fourth side portions and a cavity inside; a moving plate disposed in the cavity of the housing; a sensor base disposed on the moving plate; a sensor substrate disposed on the sensor base and having an image sensor; a holder disposed on the sensor base and the sensor substrate; a lens carrier disposed inside the holder and having a lens; a first driving unit disposed inside the first side portion of the housing and coupled to the holder and the lens carrier; a second driving unit coupled to the holder and the second side portion of the housing; a third driving unit coupled to the holder and the third side portion of the housing; and a sub-substrate extending from the outside of the second side portion of the housing to the outside of the third side portion.

[0013] According to an embodiment of the invention, the first driving unit comprises a first magnet coupled to the outer side of a first side of the lens carrier, a first coil coupled to a first coupling groove of the holder facing the first magnet, and a first yoke disposed on the outer side of the first coil, and the sensor substrate may include an extended sensor substrate extending to the outer side of the first coil. The second driving unit comprises a second magnet coupled to a third side of the holder, a second coil coupled to a second coupling groove of a third side of the housing facing the second magnet, and a second yoke disposed on the outer side of the sub-substrate, and the second yoke may be disposed on the outer side of the third side of the housing. The third driving unit comprises a third magnet coupled to a second side of the holder, a third coil coupled to a third coupling groove of a second side portion of the housing facing the third magnet, and a third yoke disposed on the outside of the sub-substrate, wherein the third yoke may be disposed on the outside of a second side portion of the housing.

[0014] According to an embodiment of the invention, the first and second side portions are arranged on both sides of a first direction, and the third and fourth side portions are arranged on both sides of a second direction orthogonal to the first direction, and the second yoke and the third yoke may be separated from each other or connected to each other.

[0015] According to an embodiment of the invention, the sub-substrate comprises a first sub-substrate disposed in an outer storage area of ​​a second side portion of the housing, and a second sub-substrate disposed in an outer storage area of ​​a third side portion of the housing, wherein the third yoke is disposed on the outer side of the first sub-substrate and the second yoke is disposed on the outer side of the second sub-substrate, and the area of ​​the first and second sub-substrates where the second and third yokes are disposed may be a stepped area having a thickness thinner than the thickness of other areas.

[0016] According to an embodiment of the invention, a plurality of buffers may be included between the moving plate and the bottom of the housing. The housing may include a lower yoke storage portion in which a holding yoke is received at the center of the bottom; a first ball lower groove disposed on both sides of the second direction of the lower yoke storage portion; and a buffer lower recess disposed on both sides of the first diagonal direction of the lower yoke storage portion. The moving plate may include a coupling hole penetrating the center of the bottom facing the holding yoke; a first ball upper groove disposed on both sides of the second direction of the bottom surface relative to the coupling hole; a buffer upper recess concave on both sides of the first diagonal direction of the bottom surface relative to the coupling hole; and a second ball lower groove disposed on both sides of the first direction of the top surface relative to the coupling hole, and may include a first ball disposed respectively between the first ball lower groove and the first ball upper groove, and the buffer may be disposed respectively between the buffer lower recess and the buffer upper recess. The moving plate includes a boss hole disposed on one or both sides of a second diagonal direction relative to the coupling hole, and the sensor base includes a boss protruding into the boss hole of the moving plate; a coupling part protruding into the coupling hole and having a holding magnet inside; and a second ball upper groove disposed on both sides of a first direction relative to the coupling part, and may include a second ball disposed respectively between the second ball lower groove and the second ball upper groove. The sub-substrate may include a plurality of pads exposed on the lower outer side.

[0017] The camera actuator and camera module of the embodiment can eliminate image distortion caused by the operating mode of OIS. Since the image sensor is tilted, it has the effect of enabling shake correction in high-angle and high-wide bands. In addition, since the image sensor is tilted together with the sensor base, it has the effect of enabling shake correction in high-angle and high-wide bands. The camera actuator may have low current consumption and load, and can improve heat generation problems.

[0018] The camera actuator and camera module of the embodiment are equipped with a holding yoke so that the position of the OIS actuator is aligned to the center, thereby enabling stable correction in AF mode. In addition, 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 an open area of ​​the outer layer of the substrate, an increase in size can be suppressed.

[0019] The camera actuator and camera module of the embodiment can reduce impact by placing a moving plate and a sensor base on the lower side of a sensor substrate on which an image sensor is placed. In addition, since the moving plate and the sensor base are joined in a mating structure, the mating structure prevents detachment due to external impact and can mitigate secondary impact. Furthermore, at least one buffer can be placed between the moving plate and the housing to absorb impact transmitted in the direction of the optical axis. This improves the reliability of the camera actuator and camera module of the invention and can improve the reliability of portable electronic devices such as mobile communication terminals, smartphones, and tablet PCs, as well as mobile electronic devices such as vehicles, ships, or drones equipped with said camera module.

[0020] FIG. 1 is a perspective view of an actuator and a camera module according to a first embodiment of the invention.

[0021] Figure 2 is an exploded perspective view of the actuator and camera module of Figure 1.

[0022] Figure 3 is a perspective view of the configuration of Figure 2 viewed from a different direction.

[0023] FIG. 4 is a combined perspective view of the actuator and camera module with the cover of FIG. 1 removed.

[0024] Figure 5 is a diagram showing an example illustrating the operation of an actuator and camera module with the cover of Figure 1 removed.

[0025] FIG. 6 is a plan cross-sectional view illustrating the arrangement structure of the driving parts of the camera module and actuator of FIG. 4.

[0026] FIG. 7 is a cross-sectional view of the actuator and camera module of FIG. 6 on the AA side.

[0027] FIG. 8 is a cross-sectional view of the actuator and camera module of FIG. 6 on the BB side.

[0028] FIG. 9 is a cross-sectional view of the actuator and camera module of FIG. 6 on the CC side.

[0029] FIG. 10 is a cross-sectional view showing the first driving part and the ball member in the actuator and camera module of FIG. 4.

[0030] Fig. 11 is a perspective view of the lens holder of Fig. 4.

[0031] FIG. 12 is a cross-sectional view of the actuator and camera module of FIG. 4 viewed from the first coil side.

[0032] FIG. 13 is a perspective view showing an example of the connection between the sensor substrate and the substrate part of FIG. 4.

[0033] FIG. 14 is a bottom perspective view of the configurations with the housing removed from the actuator and camera module of FIG. 4.

[0034] FIG. 15 is a perspective view showing an example of a moving plate and a fourth driving unit disposed on the housing of FIG. 4.

[0035] (A) and (B) of FIG. 16 are front and rear perspective views of the moving plate of FIG. 14 and FIG. 15.

[0036] FIG. 17 is a rear perspective view showing an example of the combination of a housing and a sub-substrate in the camera actuator and camera module of FIG. 1 and FIG. 2.

[0037] FIG. 18 is a perspective view of the configurations with the housing removed from the structure of FIG. 17.

[0038] FIG. 19 is a perspective view of an actuator and a camera module according to a second embodiment of the invention.

[0039] FIG. 20 is an exploded perspective view of the actuator and camera module of FIG. 19.

[0040] FIG. 21 is a perspective view of FIG. 20 seen from a different direction.

[0041] FIG. 22 is a combined perspective view of the actuator and camera module with the cover of FIG. 19 removed.

[0042] FIG. 23 is a diagram showing an example illustrating the operation of an actuator and camera module with the cover of FIG. 19 removed.

[0043] FIG. 24 is a plan view illustrating the arrangement structure of the driving parts of the camera module and actuator of FIG. 22.

[0044] FIG. 25 is a cross-sectional view along line A1-A1 of the actuator and camera module of FIG. 24.

[0045] FIG. 26 is a cross-sectional view along the B1-B1 side of the actuator and camera module of FIG. 24.

[0046] FIG. 27 is a cross-sectional view of the actuator and camera module of FIG. 24 along the C1-C1 side.

[0047] FIG. 28 is a partial enlarged view showing the first driving part and the ball member in the actuator and camera module of FIG. 22.

[0048] FIG. 29 is a partial enlarged view showing the third driving unit in the actuator and camera module of FIG. 22.

[0049] FIG. 30 is a partial enlarged view showing the second driving part in the actuator and camera module of FIG. 22.

[0050] Fig. 31 is an example of the yoke of the second and third driving parts of Fig. 22.

[0051] FIG. 32 is a perspective view of the housing of FIG. 20 and FIG. 21.

[0052] FIG. 33 is a perspective view showing the moving plate and sensor base in the camera actuator and camera module of FIG. 19 and FIG. 20.

[0053] FIG. 34 is a disassembled perspective view of the sensor base and moving plate from FIG. 33.

[0054] FIG. 35 is a perspective view showing the lower part of the sensor base of FIG. 33.

[0055] FIG. 36 is a perspective view of the moving plate of FIG. 33.

[0056] FIG. 37 is a plan view showing an example of the combination of a housing and a moving plate in the camera actuator and camera module of FIG. 19 and FIG. 20.

[0057] FIG. 38 is a front perspective view of the holder of FIG. 20 and FIG. 21.

[0058] FIG. 39 is a rear perspective view of the holder of FIG. 38.

[0059] FIG. 40 is a front perspective view of the sensor base of FIG. 20 and FIG. 21.

[0060] FIG. 41 is a rear perspective view of the sensor base of FIG. 40.

[0061] FIG. 42 is a side cross-sectional view of the actuator and camera module of FIG. 22, showing the mating structure between the moving plate and the sensor base.

[0062] FIG. 43 is a perspective view of a portable mobile device having a camera actuator and a camera module according to an embodiment of the invention.

[0063] FIG. 44 is a plan view of a moving body having an actuator and a camera module of the invention.

[0064] 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 in consideration of their meaning in the context of the relevant technology.

[0065] 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. Furthermore, 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. Also, 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.

[0066] Before 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.

[0067] A camera actuator and a camera module according to a first embodiment will be described with reference to FIGS. 1 to 18. Referring to FIG. 1, the camera module according to the first embodiment may include a camera actuator (1000). Additionally, the camera module according to the first embodiment may further include lenses that are moved or transported by the camera actuator (1000) and the camera actuator (1000). 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 will be based on the camera actuator (1000) without lenses. 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 (1000) may be an AF (Auto Focus) and OIS (Optical Image Stabilizer) actuator. For example, the actuator (1000) may be an actuator that implements both AF and OIS. Additionally, the camera actuator (1000) may be a zoom actuator that additionally performs movement of an additional moving lens group.

[0068] The length of the first direction (X) of the housing (100) may be 10 mm or more, for example, in the range of 10 mm to 21 mm. The length of the second direction (Y) of the housing (100) may be greater than the thickness of the actuator and 10 mm or more, for example, in the range of 10 mm to 21 mm. The lengths of the first and second directions (X,Y) of the actuator are the bottom lengths of the housing (100) and may be 2 times or more than the thickness of the actuator, for example, in the range of 2 to 4 times. Furthermore, the camera actuator (1000) 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. In addition, OIS may be used interchangeably with terms such as hand shake correction, optical image stabilization, optical image correction, and shake correction.

[0069] Referring to FIGS. 1 to 3, a camera actuator (1000) and a camera module according to a first embodiment may include a housing (100), a cover (600) coupled to the upper and outer sides of the housing (100), a substrate portion (900) extending from the lower side of the cover (600) to one side of the cover (600), a moving plate (200) disposed inside the housing (100), a sensor base (300), 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 sides (S1, S2) disposed on both sides of a first direction (X), and third and fourth sides (S3, S4) disposed on both sides of a second direction (Y) orthogonal to the first direction (X). The first and second sides (S1, S2) are arranged to face each other in the first direction (X), and the third and fourth sides (S3, S4) are arranged to face each other in the second direction (Y). The first to fourth sides (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.

[0070] The hole (601) of the cover (600) penetrates through the upper portion and corresponds to the cavity (101) of the housing (100) and the opening (501) of the lens carrier (500). The housing (100) is housed in the inner storage area of ​​the cover (600) and has a substrate extraction hole (605) on one side, and a part of the substrate portion (900), namely the connecting substrate (906), extends through the substrate extraction hole (605). The connecting substrate (906) is connected to the connector substrate (905) and can be electrically connected to the outside. 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) within the lens carrier (500) are arranged. That is, a lens barrel having a plurality of lenses may be coupled within the lens carrier (500).

[0071] A moving plate (200), a sensor base (300), a holder (400), and a lens carrier (500) may be disposed in the area between the cover (600) and the housing (100). The housing (100) may be located at the bottom of the camera actuator (1000). The housing (100) may have an open top and a concave cavity (101). The bottom of the cavity (101) may be lower than the top surface, and the top view shape may be polygonal, elliptical, or circular. A moving plate (200), a sensor base (300), a holder (400), and a lens carrier (500) may be coupled within the cavity (101) of the housing (100). The moving plate (200), the sensor base (300), the holder (400), and the lens carrier (500) can be arranged along the optical axis direction within the housing (100).

[0072] The camera actuator (1000) may include one or more lenses (not shown) disposed within a lens carrier (500). A filter section (991) and an image sensor (990) are disposed in the area between the holder (400) and the sensor base (300), the filter section (991) is disposed between the last lens and the image sensor (990), and the image sensor (990) is disposed between the filter section (991) and the sensor base (300). A sensor substrate (910) is disposed on the sensor base (300), an image sensor (990) is mounted on the sensor substrate (910), and the image sensor (990) is electrically connected to the sensor substrate (910). The sensor substrate (910) may be made of a rigid printed circuit board (Rigid PCB). The sensor substrate (910) is connected to a driving substrate (819), and the driving substrate (819) may be made of a flexible printed circuit board (Flexible PCB) or a rigid-flexible printed circuit board (Rigid-Flexible PCB).

[0073] The image sensor (990) 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 (990) senses the light incident through the lens and the filter unit (991) and converts it into an electrical signal. The filter unit (991) may include an infrared filter. The filter unit (991) may allow light of a set wavelength band to pass through and block other wavelength bands. The filter unit (991) may be coupled to the lower part of the holder (400). Additionally, a cover glass (not shown) for protecting the image sensor (990) may be placed on the surface of the image sensor (990).

[0074] The center of the image sensor (990) 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. Also, 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, components 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.

[0075]

[0076] The moving plate (200) is positioned on the bottom of the cavity (101) of the housing (100), the sensor base (300) is positioned on the moving plate (200), the substrate portion (900) is positioned around the perimeter of the housing (100), and the holder (400) is positioned between the lens carrier (500) and the sensor base (300). The holder (400) is positioned between the perimeter of the lens carrier (500) and the side portion of the housing (100). The holder (400) has an opening into which the lens carrier (500) is inserted, and the bottom of the opening may have a region corresponding to the image sensor (990) penetrated.

[0077] The above substrate portion (900) serves as a main substrate and can be connected to a connector substrate (905) through a connecting substrate (906) that extends to the outside of the housing (100). Accordingly, the connector substrate (905) is connected to a sensor substrate (910) through the above substrate portion (900) and can transmit and receive signals from an image sensor (990) placed on the sensor substrate (910). The above substrate portion (900) may include first to fourth extension portions (901, 902, 903, 904) that extend to each side (S1, S2, S3, S4) of the housing (100). The first to fourth extension portions (901, 902, 903, 904) are positioned between the housing (100) and the cover (600). A reinforcing plate may be attached to the outer side of at least one of the first to fourth extension parts (901, 902, 903, 904) to strengthen the rigidity of the extension part(s). As shown in FIG. 6, each side of the housing (100) is provided with an open first to fourth connecting part (181, 182, 183, 184), and the first to fourth extension parts (901, 902, 903, 904) may be arranged on the outer side of the first to fourth connecting part (181, 182, 183, 184).

[0078]

[0079] As shown in FIGS. 6 and 17, a sub-substrate (950) may be disposed on the bottom of the housing (100). The sub-substrate (950) may be a driving substrate or an external connection substrate. A plurality of pads (PD1, PD2) are provided on the outer side of the sub-substrate (950), and the plurality of pads (PD1, PD2) may be electrically connected to a driver chip or an external substrate. A first connection portion (955) of the sub-substrate (950) may protrude outward from the first side (S1) of the housing (100) and the cover (600) and may have a first pad (PD1). A second connection portion (956) of the sub-substrate (950) may protrude outward from the second side (S2) of the housing (100) and the cover (600) and may have a second pad (PD2). The number of the first and second pads (PD1, PD2) may differ from each other. The plurality of pads (PD1, PD2) are exposed on the outside of the housing (100) and can be easily connected to the outside.

[0080] The above sub-substrate (950) includes a first sub-substrate (951) and a second sub-substrate (952), wherein the first sub-substrate (951) and the second sub-substrate (952) are connected to each other and may be disposed on both sides of the first direction (X) of the housing (100). The first sub-substrate (951) is disposed on the third side (S3) of the housing (100), and the second sub-substrate (952) is disposed on the fourth side (S4) of the housing (100). That is, the first sub-substrate (951) is attached or bonded to the outside of the third side (S3) of the housing (100), and the second sub-substrate (952) is attached or bonded to the outside of the fourth side (S4) of the housing (100). The lengths of the first sub-substrate (951) and the second sub-substrate (952) in the second direction (Y) may differ from each other. The sub-substrate (950) may be provided as a flexible substrate (FPCB). The first and second sub-substrates (951, 952) may be folded vertically from both sides of the second direction (Y) of the sub-substrate (950). The first and second connecting portions (955, 956) may be extended horizontally from both sides of the first direction (X) of the sub-substrate (950).

[0081]

[0082] The camera actuator (1000) 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). Any one of the plurality of driving units may be disposed on the bottom of the housing (100). The plurality of driving units includes first to fourth driving units (810, 820, 830, 840), wherein the first driving unit (810) is an AF driving unit, and the second to fourth driving units (820, 830, 840) are OIS driving units. The first driving unit (810) may be disposed on the inner side or inside of the first side (S1) of the housing (100). The second and third driving units (820, 830) may be positioned on the inner side (S2) and the fourth side (S4) of the housing (100). The first driving unit (810) may be positioned on one side of the first direction (X) of the lens carrier (400), and the second and third driving units (820, 830) may be positioned on opposite sides of the second direction (Y). The fourth driving unit (840) may be positioned on the bottom of the housing (100) or between the sub-substrate (950) and the sensor base (300). The second and third driving units (820, 830) may tilt the holder (400) in the second direction (Y) relative to the first direction (X). The above-mentioned fourth driving unit (840) can tilt the holder (400) in the first direction (X) relative to the second direction (Y).

[0083] As shown in FIG. 5, the holder (400) and the lens carrier (500) can be moved together or separately by the driving unit (810, 820, 830, 840) and can be defined as a moving unit. The moving unit can rotate with respect to a first or second direction (X, Y) perpendicular to the optical axis direction. For example, the moving unit can rotate (Yaw) with respect to the second direction (Y). Additionally, the moving unit can rotate (Pitch) with respect to the first direction (X). The moving unit may include a moving plate (200), a sensor base (300), a holder (400), and a lens carrier (500) as a movable element. The moving unit may include components disposed on the movable moving plate (200). The moving unit may include movement in the direction of the optical axis and rotation or movement with respect to the axis direction (X, Y) perpendicular to the optical axis. That is, AF function and OIS function can be performed by the moving unit.

[0084] 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 the 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), a sensor base (300), a substrate part (910), and a holder (400). The second moving part may include a lens carrier (500). In the case of rotation (Yaw, Pitch) in a first or second direction (X, Y), the moving plate (200) may rotate with respect to either the first or second direction. For example, the moving plate (200) may rotate (Pitch) on both sides of the first direction (X) with respect to the second direction (Y). The moving plate (200) may not rotate on both sides of the second direction (Y) relative to the first direction (X). Additionally, the sensor base (300) may rotate (Yaw) on both sides of the second direction (Y) relative to the first direction (X) on the moving plate (200). Such rotation (Yaw, Pitch) in the first and second directions (X, Y) can be implemented by the electromagnetic force of the second to fourth driving units (820, 830, 840). Accordingly, since the image sensor (990) is tilted together with the sensor base (300), high-angle shake correction may be possible. This configuration can eliminate the problem of corner distortion occurring when only the lens is tilted. The first driving unit (810) can move the lens carrier (500) up or down in the optical axis direction from the inside of the first side (S1) of the housing (100).The second and third driving units (820) can tilt or rotate the lens holder (400) with respect to the first direction (X), and the fourth driving unit (840) can tilt or rotate the lens holder (400) with respect to the second direction (Y).

[0085]

[0086] Referring to FIGS. 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 (Y1) disposed inside the first magnet (M1). As another example, the first yoke (Y1) may be disposed outside the first coil (C1). The first magnet (M1) is disposed on a first side (S1) of the lens carrier (500), and the first side (S1) is provided with a first recess (581) that accommodates the first magnet (M1), and the first recess (581) is open to the first side (S1) of the lens carrier (500). The first coil (C1) is placed in the first coupling groove (481) on the side of the holder (400) facing the first magnet (M1), that is, the first coupling groove (481) on the first side (S1). The positions of the first magnet (M1) and the first coil (C1) can be interchanged. The first yoke (Y1) is coupled to the inner side of the magnet (M1) and has an area or length greater than the outer area or length of the first coil (C1). The first yoke (Y1) has a magnetic material and can exert an attractive force with the first magnet (M1). The first yoke (Y1) can induce a magnetic field 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 lens carrier (500) having the lenses up or down in the optical axis direction relative to the holder (400) by means of the electromagnetic force.

[0087] As shown in FIGS. 6 and FIGS. 13, the driving substrate (819) is an AF substrate and is positioned on the outside of the first coil (C1), and can be electrically connected to the sensor substrate (910) positioned on the sensor base (300). A plurality of fourth pads (PD4) are exposed on the outer lower side of the driving substrate (819), and a plurality of third pads (PD3) are exposed on the outer side of the upper surface of the sensor substrate (910). The third and fourth pads (PD3, PD4) can be electrically connected by a bonding member (not shown). The sensor substrate (910) is electrically connected to the substrate portion (900) and, for example, can be connected to the fourth extension portion (904).

[0088]

[0089] As shown in FIG. 12, a first holding yoke (HY1) may be disposed inside the first coil (C1) and inside the driving substrate (819). A plurality of the first holding yoke (HY1) may be spaced apart in the second direction (Y) and may face the first magnet (M1). The plurality of first holding yoke (HY1) generate an attractive force with the first magnet (M1) and may press the first and second ball members (851, 853) and the lens holder (400) in the direction of the lens carrier (500). As shown in FIGS. 6 and 12, a first Hall sensor (HS1) is disposed inside the first coil (C1) and on the inside of the driving substrate (819), and the first Hall sensor (HS1) can provide information to a driver (not shown) for controlling the position of the first magnet (M1). A first temperature element (TC1) is disposed inside the first coil (C1) and on the inside of the driving substrate (819), and the first temperature element (TC1) is an NTC (Negative Temperature Coefficient of Resistance) that detects and provides a temperature to control the internal temperature.

[0090] A movement guide member may be included to support and guide the movement of the lens carrier (500) 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 (850, 851) and guide grooves (BG1, BG2, BG3, BG4). The ball members (850, 851) are positioned on both sides of the second direction (Y) of the first driving unit (810) and include a first ball member (850) and a second ball member (851). The first ball member (850) and the second ball member (851) 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 (850, 851) may be stacked in the direction of the optical axis, with one or more or two or more. The first and second ball members (850, 851) may have the same number of balls or different number of balls. As another example, either of the first or second ball members (850, 851) may be removed.

[0091]

[0092] As shown in FIGS. 10 and 11, the lower part of the lens holder (400) may be provided with stop protrusions (471, 472) to prevent the lower detachment of the first and second ball members (851, 852). The stop protrusions (471, 472) may protrude from the lens holder (400) and may overlap with the ball members (851, 852) in a direction (Z) orthogonal to the optical axis. As another example, the stop protrusions (471, 472) may protrude from the lens carrier (500). As shown in FIGS. 10, 11 and 14, the lens holder (400) may have a through hole (401) inside, and the filter part (991) may be coupled within the through hole (401). The lens holder (400) is provided with guide holes (461, 462) in the area where the first and second ball members (851, 852) are arranged. The guide holes (461, 462) penetrate vertically or in the direction of the optical axis and can guide a part of the lens carrier (500) to move in the direction of the optical axis. Accordingly, since the lens carrier (500) moves in the direction of the optical axis along the guide holes (461, 462), the travel distance for AF can be increased.

[0093] The guide grooves (BG1, BG2, BG3, BG4) may include first and second guide grooves (BG1, BG2) disposed on the inner side of the first side (S1) of the holder (400), and third and fourth guide grooves (BG3, BG4) disposed in the area facing each of the first and second guide grooves (BG1, BG2) of the lens carrier (500) (i.e., the outer side of the first side). The first to fourth guide grooves (BG1, BG2, BG3, BG4) have a long length in the direction of the optical axis and have a triangular shape. As another example, any one of the third and fourth guide grooves (BG3, BG4) may be flat. A first ball member (850) is coupled to the second and fourth guide grooves (BG2, BG4), and a second ball member (851) is coupled to the first and third guide grooves (BG1, BG3). The first and second ball members (850, 851) guide movement along the first to fourth guide grooves (BG1, BG2, BG3, BG4) when the lens carrier (500) moves up or down in the optical axis direction by the first driving unit (810).

[0094]

[0095] As shown in FIGS. 6 and 8, 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 (Y2) disposed inside the second magnet (M2). As another example, the second yoke (Y2) may be disposed outside the second coil (C2). The second magnet (M2) is disposed on a third side (S3) of the holder (400), and the third side (S3) is provided with a second recess (482) that accommodates the second magnet (M2) and the second yoke (Y2), and the second recess (482) is open to the outside of the third side (S3) of the holder (400). The second magnet (M2) may be configured as a single pole. The second coil (C2) is placed in the second coupling portion (182) of the third side (S3) of the housing (100) facing the second magnet (M2). The positions of the second magnet (M2) and the second coil (C2) can be interchanged.

[0096] The second yoke (Y2) may be placed in the second recess (482) or in the second coupling part (182). The second yoke (Y2) is coupled to the inner side of the second magnet (M2) or the outer side of the second coil (C2) and has an area or length greater than the outer area or length of the second coil (C2). The second yoke (Y2) has a magnetic material and may exert an attractive force with the second magnet (M2). The second yoke (Y2) can induce a magnetic field to strengthen or shield the magnetic force in a desired direction. The second driving part (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 first direction (X) by means of the electromagnetic force. The second coil (C2) is positioned inside the first sub-substrate (951) and is electrically connected to the first sub-substrate (951). The second Hall sensor (HS2) is positioned inside the second coil (C2), and the second Hall sensor (HS2) detects position information for controlling the position of the second magnet (M2) and provides it to a driver (not shown).

[0097]

[0098] 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 (Y3) disposed inside the third magnet (M3). The third magnet (M3) is disposed on a second side (S2) of the holder (400), and the second side (S2) is provided with a third recess (483) that accommodates the third magnet (M3) and the third yoke (Y3), and the third recess (483) is open to the outside of the second side (S2) of the holder (400). The third magnet (M3) may be configured as a single pole.

[0099] The third coil (C3) is positioned at the fourth coupling portion (184) of the fourth side (S4) of the housing (100) facing the third magnet (M3). The positions of the third magnet (M3) and the third coil (C3) may be interchanged. As another example, the third yoke (Y3) may be coupled to the outside of the third coil (C3). The third yoke (Y3) has an area or length greater than the outer area or length of the third coil (C3). The third yoke (Y3) has a magnetic material and may exert an attractive force with the third magnet (M3). The third yoke (Y3) can induce a magnetic field to strengthen or shield the magnetic force in a desired direction. The third drive 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 first direction (X) by means of the electromagnetic force. The third coil (C3) is placed inside the second sub-substrate (952) and is electrically connected to the second sub-substrate (952). The third Hall sensor (HS3) is placed inside the third coil (C3), and the third Hall sensor (HS3) detects position information for controlling the position of the third magnet (M3) and provides it to a driver (not shown).

[0100] To ensure driving accuracy of the first driving unit (810), a first Hall sensor (HS1) may be provided within the area of ​​the first driving unit (810). The first Hall sensor (HS1) is a position sensing sensor, electrically connected to the driving substrate (819), and can sense to correct the position of the lens carrier (500). The second Hall sensor (HS2) may be placed in the internal space of the second coil (C2), and the third Hall sensor (HS3) may be placed in the internal space of the third coil (C3) and electrically connected to the first and second sub-sub The second and third driving units (820, 830) are positioned on both sides of the second direction (Y) of the lens holder (400) and can control driving in the Y-axis direction for OIS. Accordingly, the output of OIS can be increased to a range of 50 mN or more, for example, 80 mN to 120 mN.

[0101]

[0102] The fourth driving unit (830) may include a fourth magnet (M4) and a fourth coil (C4). The fourth driving unit (840) includes a fourth yoke (Y4) positioned above the fourth magnet (M4). The fourth magnet (M4) is coupled inside the sensor base (300), and the fourth magnet (M4) and the fourth yoke (Y4) are positioned in the inner region (301) of the sensor base (300). The fourth yoke (Y4) may be positioned between the fourth magnet (M4) and the sensor substrate (910). The fourth magnet (M4) may be configured as a single pole or a positive pole.

[0103] The fourth coil (C4) is placed on a sub-substrate (950) positioned on the bottom of the housing (100) facing the fourth magnet (M4). The positions of the fourth magnet (M4) and the fourth coil (C4) may be interchanged. As another example, the fourth yoke (Y4) may be coupled to the outside of the sub-substrate (950). The fourth yoke (Y4) has an area or length greater than the outer area or length of the fourth coil (C4). The fourth yoke (Y4) has a magnetic material and may exert an attractive force with the fourth magnet (M4). The fourth yoke (Y4) can induce a magnetic field to strengthen or shield the magnetic force in a desired direction. The fourth driving unit (840) generates an electromagnetic force with the fourth magnet (M4) by means of power supplied to the fourth coil (C4), and can rotate the sensor base (300) and holder (400) with respect to the first direction (X) by means of the electromagnetic force. The fourth coil (C4) is placed inside the sub-substrate (950) and is electrically connected to the sub-substrate (950). The fourth Hall sensor (HS4) is placed inside the fourth coil (C4), and the fourth Hall sensor (HS4) detects position information for controlling the position of the fourth magnet (M4) and provides it to a driver (not shown).

[0104] A second holding yoke (HY2) may be disposed inside the fourth coil (C4) and on the inner side of the sub-substrate (950). The second holding yoke (HY2) may have one or more and may face the fourth magnet (M4). The second holding yoke (HY2) may face the coupling hole (201) of the moving plate (200). The second holding yoke (HY2) generates an attractive force with the fourth magnet (M4) and can press the first balls (281, 282) located on the bottom and the moving plate (200) toward the sensor base (300). The fourth Hall sensor (HS4) may be disposed on each side of the second holding yoke (HY2). Additionally, a second temperature sensor (TC2) may be placed around the fourth Hall sensor (HS4) and the second holding yoke (HY2), and the second temperature sensor (TC2) checks and provides the temperature generated within the fourth driving unit (840).

[0105] The fourth driving unit (840) is positioned at the bottom of the sensor base (300) and the lens holder (400) and can control driving in the X-axis direction for OIS. Accordingly, the actuator can increase the output in the X-axis direction of OIS. In addition, the fourth driving unit (840) can reduce the distance between the fourth magnet (M4) and the fourth coil (C4), thereby maximizing the electromagnetic force. The fourth magnet (M4), the fourth coil (C4), and the second holding yoke (HY2) can overlap with the image sensor (990) in the optical axis direction.

[0106] Since tilting in the X-axis and Y-axis directions orthogonal to the optical axis direction is possible by the second to fourth driving units (820, 830, 840) above, image distortion according to OIS mode can be eliminated. In addition, AF and OIS can mechanically correct the image by the driving units above, so compared to the method of shifting the lens during image processing, there is an effect of lower current consumption, lower CPU load, and lower heat generation.

[0107]

[0108] The moving plate (200) is positioned between the sub-substrate (950) and the sensor base (300). The moving plate (200) is positioned between the bottom portion (110) of the housing (100) and the sensor base (300). The moving plate (200) is provided with a metal material to prevent a decrease in strength and to reduce thickness. As shown in FIG. 16, the moving plate (200) includes a coupling hole (201) in the center and first ball upper holes (RG1, RG2) and second ball lower holes (RG3, RG4) around the periphery. Here, the moving plate (200) has a polygonal shape with the corner areas of the first diagonal direction removed, and may be provided in a diagonal shape or a curved shape. The first ball upper holes (RG1, RG2) may be arranged as one or multiple. The second ball lower holes (RG3, RG4) may be arranged in one or multiple numbers, and may be arranged in the same number as the first ball upper holes (RG1, RG2). The first ball upper holes (RG1, RG2) and the second ball lower holes (RG3, RG4) may be provided in the shape of holes penetrating the moving plate (200).

[0109] The coupling hole (201) penetrates from the upper surface to the lower surface of the moving plate (200), and the fourth coil (C4) and the second holding yoke (HY2) are disposed inside. The shape of the coupling hole (201) may be polygonal, or as another example, circular. The first ball upper holes (RG1, RG2) are disposed on both sides of the first direction (X) of the coupling hole (201). The upper portion of the first ball (281, 282) is inserted into the first ball upper holes (RG1, RG2), and the minimum inner diameter of the first ball upper holes (RG1, RG2) may be provided to be smaller than the diameter of the first ball (281, 282). The first ball upper holes (RG1, RG2) can prevent the upper portion of the first ball (281, 282) from coming off. The second ball lower holes (RG3, RG4) are positioned on both sides of the second direction (Y) of the coupling hole (201). The lower portion of the second ball (381, 382) is inserted into the second ball lower holes (RG3, RG4), and the minimum inner diameter of the second ball lower holes (RG3, RG4) may be provided to be smaller than the diameter of the second ball (381, 382). The second ball upper holes (RG3, RG4) can prevent the lower portion of the second ball (381, 382) from coming loose. The first ball (281, 282) and the second ball (381, 382) are joined to the surface of the holes (RG1-RG4) of the moving plate (200), and may be joined, for example, by welding. A straight line passing through the second ball lower holes (RG3, RG4) may be perpendicular to a straight line passing through the first ball upper holes (RG1, RG2). The first ball upper hole (RG1, RG2) and the second ball lower hole (RG3, RG4) have a ball insertion area that is circular in shape, and the opposite side area may be circular or polygonal in shape.

[0110]

[0111] As shown in FIGS. 7, 8, 14, and 15, the bottom portion (110) of the housing (100) is provided with a first ball lower groove (RG5, RG6) which is positioned at a location corresponding to the first ball (281, 282), and the lower portions of the first ball (281, 282) are respectively connected. The bottom portion of the sensor base (300) is provided with a second ball upper groove (RG7, RG8) which is positioned at a location corresponding to the second ball (381, 382), and the upper portions of the second ball (381, 382) are respectively connected. When the moving plate (200) is coupled to the bottom portion (110) of the housing (100), the first balls (281, 282) are respectively coupled to the first ball lower grooves (RG5, RG6) placed in the bottom portion (110) of the housing (100) and the first ball upper holes (RG1, RG2) placed in the moving plate (200). Since the first balls (281, 282) are positioned in the first direction, the first balls (281, 282) guide the ends of the moving plate (200) and the sensor base (300) in the first direction (X) to flow or rotate with respect to the second direction (Y).

[0112] The second balls (381, 382) are respectively coupled to the second ball upper grooves (RG7, RG8) located at the bottom of the sensor base (300) and the first ball lower holes (RG3, RG4) located on the moving plate (200). Since the second balls (381, 382) are positioned in the second direction, they guide the ends of the second direction (Y) of the moving plate (200) and the sensor base (300) to move or rotate with respect to the first direction (X).

[0113] The first ball lower grooves (RG5, RG6) may be arranged as one or multiple. The second ball upper grooves (RG7, RG8) may be arranged as one or multiple. The first ball lower grooves (RG5, RG6) may be provided as concave grooves having a circular or polygonal shape. The second ball upper grooves (RG7, RG8) may be provided as concave grooves having a circular or polygonal shape. A rubber buffer may be placed in the area between the moving plate (200) and the bottom portion (110) of the housing (100) or between the moving plate (200) and the sensor base (300), and the buffer may mitigate vertical impact.

[0114]

[0115] As shown in FIG. 18, the bottom portion (110) of the housing (100) has an open area (111) and a stepped storage portion (121) from the bottom surface of the bottom portion (110) of the housing (100). The open area (111) may overlap the moving plate (200), the fourth magnet (M4), and the fourth coil (C4) in the direction of the optical axis. The open area (111) has first to third open areas (112, 113, 115), and the first open area (111) and the second open area (112) have a shape symmetric to each other with respect to the straight line of the first direction (X) passing through the center of the bottom portion (111). The third open area (115) is positioned between the first and second open areas (111, 112) and may connect the first and second open areas (111, 112). The width of the first direction (X) of the third open area (115) may be smaller than the width of the first direction (X) of the first and second open areas (111, 112).

[0116] The first and second open areas (111, 112) are exposed on both sides of the moving plate (200), and the fourth coil (C4) may be exposed in the first to third open areas (112, 113, 115). Here, the bottom portion (110) of the housing (100) is provided with a protrusion (131, 132) protruding in the direction of the fourth coil (C4) from the center, and may face both sides (both sides in the first direction) of the fourth coil (C4). The protrusion (131, 132) may overlap with the moving plate (200) in the optical axis direction. The protrusion (131, 132) may overlap with the second ball lower groove (RG1, RG2) in the optical axis direction and may overlap with the first ball (281, 282) in the optical axis direction. The sub-substrate (950) is in close contact with the storage portion (121) located at the bottom of the housing (100) and can be bonded with an adhesive. The sub-substrate (950) has opening areas (91, 92) to be combined with the bottom portion (110), and the opening areas (91, 92) can extend from both sides of the center of the sub-substrate (950) toward the third side (S3) and the fourth side (S4) of the housing (100).

[0117] The upper surface area of ​​the moving plate (200) may be smaller than the lower surface area of ​​the sensor base (300), and the moving plate (200) may be positioned around the perimeter of the fourth magnet (M4) coupled to the sensor base (300). An angular velocity sensor (not shown) may be coupled to one side of the lower portion of the sensor base (300), and the angular velocity sensor is a gyroscope sensor that detects and provides information on the angle change of the rotation axis of the sensor base (300).

[0118]

[0119] With reference to FIGS. 19 to 42, a camera actuator and a camera module according to the second embodiment will be described. In describing the second embodiment, for configurations identical to those of the first embodiment, the description of the first embodiment will be referenced.

[0120] Referring to FIGS. 19 to 21, a camera actuator (1000) and camera device according to a second embodiment may include a housing (100), a cover (600) coupled to the upper and outer side of the housing (100), a substrate portion (900), a sensor substrate (910) extending to one side of the housing (100) and the cover (600), a moving plate (200A) disposed inside the housing (100), a sensor base (300), a sensor substrate (910), a holder (400), and a lens carrier (500). The hole (601) of the cover (600) penetrates through the upper portion and corresponds to the cavity (101) of the housing (100) and the opening (501) of the lens carrier (500). The storage portion (602) is positioned on the inner side of the cover (600) and accommodates the housing (100). The substrate insertion groove (60) may be provided as an open area that extends a portion of the sensor substrate (910). 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) within the lens carrier (500) are positioned. A moving plate (200A), a sensor base (300), a sensor substrate (910), a holder (400), and a lens carrier (500) may be coupled within the cavity (101) of the housing (100). The moving plate (200A), the sensor base (300), the sensor substrate (910), the holder (400), and the lens carrier (500) can be arranged along the optical axis direction within the housing (100).

[0121]

[0122] The substrate portion (900) has a connection substrate (906) and a connector substrate (905) and is connected to a sensor substrate (910). The sensor substrate (910) can be connected to a connector of the connector substrate (905) through a connection substrate (906) that extends outwardly to the housing (100). Accordingly, signals can be transmitted and received with an image sensor (990) placed on the sensor substrate (910) through the connector substrate (905). The connection substrate (906) may include a first extension part (911) extending from the sensor substrate (910) into the inner side of the protrusion (105) of the housing (100), and a second extension part (913) extending vertically from the first extension part (911) into an open upper region of the protrusion (105). As shown in FIG. 42, a reinforcing plate (916) may be provided on the outer side of the first and second extension parts (911, 913) of the sensor substrate (910), and the reinforcing plate (916) may be made of metal or plastic to strengthen the rigidity of the first and second extension parts (911, 913). Additionally, the protrusion (105) of the housing (100) protrudes from a portion of the fourth side (S4) of the housing (100), and the substrate fixing part (141) is located on the inner side of the second extension part (913) and on the upper side of the first extension part (911) to prevent the first and second extension parts (911, 913) from detaching. As shown in FIG. 24, both ends of the substrate fixing part (141) may be fitted into and coupled to the sliding grooves (PG1, PG2) of the protrusion (105). The above substrate fixing part (141) has a plate shape and has a width greater than the width of the first and second extension parts (911, 913), and can prevent the first and second extension parts (911, 913) from coming off.

[0123] A sub-substrate (950A) may be included on the outer side of at least one or two side portions of the housing (100). The sub-substrate (950A) may be a driving substrate or an external connection substrate. A plurality of pads (PD5) are provided on the outer side of the sub-substrate (951), and the plurality of pads (PD5) may be electrically connected to a driver chip or an external substrate. Accordingly, the plurality of pads (PD5) may be exposed on the outer side of the housing (100), making it easy to connect to the outside.

[0124] As shown in FIGS. 21 to 27, the sub-substrate (950A) includes a first sub-substrate (951) and a second sub-substrate (952), the first sub-substrate (951) and the second sub-substrate (952) are connected to each other and may be disposed on adjacent outer surfaces of the housing (100). The sub-substrate (950A) may be provided as a flexible substrate (FPCB). The housing (100) includes a cavity (101) inside, first to fourth side portions (S11, S12, S13, S14), and a bottom portion (S15). The first and second side portions (S11, S12) are disposed on both sides of the first direction (X), and the third and fourth side portions (S13, S14) are disposed on both sides of the second direction (Y).

[0125] The first sub-substrate (951) is attached to or bonded to the outer side of the second side portion (S12), and the second sub-substrate (952) is attached to or bonded to the outer side of the third side portion (S13). A storage area (191) for housing the first sub-substrate (951) is provided in the second side portion (S12), and the storage area (191) has a stepped area inwardly compared to the outer side of the second side portion (S12), thereby preventing the first sub-substrate (951) from protruding outward. A storage area (192) for housing the second sub-substrate (952) is provided in the third side portion (S13), and the storage area (192) has a stepped area inwardly compared to the outer side of the third side portion (S13), thereby preventing the second sub-substrate (952) from protruding outward.

[0126] As shown in FIG. 29, the first sub-substrate (951) includes a first region (PC1) having a first thickness and a second region (PC2) having a second thickness thinner than the first thickness. The first region (PC1) is positioned at the bottom of the first sub-substrate (951) and has the pad (PD5). The second region (PC2) is an area where the outermost layer of the first region (PC1) has been removed, and a third yoke (Y3) is attached or coupled to the outside. A coupling region (PC11) located on one side of the first sub-substrate (951) has the same thickness as the first region (PC1) and can be connected to the first and second regions (PC1, PC2), and has a coupling hole (96), into which a coupling projection (156) of the housing (100) can be inserted.

[0127] As shown in FIGS. 30 and 29, the second sub-substrate (952) includes a third region (PC3) having a first thickness and a fourth region (PC4) having a second thickness thinner than the first thickness. The third region (PC3) is positioned at the bottom of the second sub-substrate (952) and is folded or connected to the first region (PC1). The fourth region (PC4) is an area where the outermost layer of the third region (PC3) has been removed, and a second yoke (Y2) is attached or connected to the outside. The fourth region (PC4) is folded or connected to the second region (PC2). The coupling area (PC12) located on the other side of the second sub-substrate (952) has the same thickness as the third area (PC3) and can be connected to the third and fourth areas (PC3, PC4), and has a coupling hole (957), into which a coupling projection (157) of the housing (100) can be inserted. Accordingly, the first and second sub-substrates (951, 952) can be in close contact with the second and third side portions (S12, S13) of the housing (100).

[0128] The lower portions of the first to fourth side portions (S11, S12, S13, S14) of the housing (100) are provided with a stop projection (161), and the stop projection (161) can prevent the cover (600) from being inserted to the lower side of the housing (100). Here, the lower portions of the first and second sub-substrates (951, 952) and the pads (PD5) can be exposed to the lower side of the housing (110) and the cover (600) through the area between the stop projections (161).

[0129]

[0130] The camera actuator includes a plurality of driving units, such as first to third driving units (810, 820, 830), wherein the first driving unit (810) is a driving unit for AF, and the second and third driving units (820, 830) are driving units for OIS. The first driving unit (810) may be positioned on the inside or within the first side portion (S11) of the housing (100). The second and third driving units (820, 830) may be positioned on the inside and within the second side portion (S12) and third side portion (S13) of the housing (100). The first driving unit (810) and the third driving unit (830) may be positioned on opposite sides in the first direction (X). The first driving unit (810) can move the lens carrier (500) up or down in the optical axis direction from the inside of the first side portion (S11) of the housing (100). The second driving unit (820) can tilt or rotate the lens holder (400) with respect to the first direction (X), and the third driving unit (830) can tilt or rotate the lens holder (400) with respect to the second direction (Y).

[0131] As shown in FIG. 23, in the case of rotation (Yaw, Pitch) in the first or second direction (X, Y), the moving plate (200A) may rotate with respect to either the first or second direction. For example, the moving plate (200A) may rotate (Pitch) on both sides of the first direction (X) with respect to the second direction (Y). The moving plate (200A) may not rotate on both sides of the second direction (Y) with respect to the first direction (X). Additionally, the sensor base (300) may rotate (Yaw) on both sides of the second direction (Y) with respect to the first direction (X) on the moving plate (200A). 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).

[0132]

[0133] Referring to FIGS. 20, 21, 25 to 27, the first driving unit (810) includes a first magnet (M1) and a first coil (C1), and includes a first yoke (Y1) disposed on the outside of the first coil (C1). The first magnet (M1) is disposed on a first side (S1) of the lens carrier (500), and the first side (S1) is provided with a first recess (581) that accommodates the first magnet (M1), and the first recess (581) is open to the first side (S1) of the lens carrier (500). The first coil (C1) is disposed in a first coupling groove (481) on the side of the holder (400) facing the first magnet (M1), that is, in the first coupling groove (481) of the first side (S1). The positions of the first magnet (M1) and the first coil (C1) can be interchanged. The first yoke (Y1) 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 (Y1) has a magnetic material and can exert an attractive force with the first magnet (M1). The first yoke (Y1) can induce a magnetic field from 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 by means of the electromagnetic force, the lens carrier (500) having the lenses can be moved up or down in the optical axis direction relative to the holder (400). As another example, the first magnet (M1) may be embedded in the lower part of the lens carrier (500), and the first coil (C1) may be placed at the bottom of the holder (400).

[0134]

[0135] The lens carrier (500) may include a movement guide member that supports and guides the movement of the lens carrier (500) in the optical axis direction by the first driving unit (810). The movement guide member may include, for example, ball members (850, 851) and guide grooves (BG1, BG2, BG3, BG4). The ball members (850, 851) are arranged on both sides of the second direction (Y) of the first driving unit (810) and include a first ball member (850) and a second ball member (851). The first ball member (850) and the second ball member (851) 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 (850, 851) may be stacked in the optical axis direction, with one or more or two or more. The first and second ball members (850, 851) may have the same number of balls or different number of balls. As another example, either of the first or second ball members (850, 851) may be removed.

[0136] The guide grooves (BG1, BG2, BG3, BG4) may include first and second guide grooves (BG1, BG2) disposed on the inner side of the first side (S1) of the holder (400), and third and fourth guide grooves (BG3, BG4) disposed in the area facing the first and second guide grooves (BG1, BG2) of the lens carrier (500) (i.e., the outer side of the first side). The first to fourth guide grooves (BG1, BG2, BG3, BG4) have a long length in the direction of the optical axis and have a triangular shape. A first ball member (850) is coupled to the second and fourth guide grooves (BG2, BG4), and a second ball member (851) is coupled to the first and third guide grooves (BG1, BG3). The first and second ball members (850, 851) guide movement along the first to fourth guide grooves (BG1, BG2, BG3, BG4) when the lens carrier (500) moves up or down in the optical axis direction by the first driving unit (810).

[0137]

[0138] As shown in FIGS. 26 and 30, the second driving unit (820) includes a second magnet (M2) and a second coil (C2), and includes a second yoke (Y2) disposed on the outside of the second coil (C2). The second magnet (M2) is disposed on the third side (S3) of the holder (400), and the third side (S3) is provided with a second recess (482) that accommodates the second magnet (M2), and the second recess (482) is open to the outside of the third side (S3) of the holder (400). The second coil (C2) is disposed on the second coupling part (182) of the side of the housing (100) facing the second magnet (M2), that is, the second coupling part (182) of the third side part (S13). The positions of the second magnet (M2) and the second coil (C2) may be interchanged. The second yoke (Y2) is coupled to the outside of the second coil (C2) and has an area or length greater than the outer area or length of the second coil (C2). The second yoke (Y2) has a magnetic material and may exert an attractive force with the second magnet (M2). The second yoke (Y2) 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 first direction (X) by means of the electromagnetic force.

[0139] As shown in FIG. 30, the second yoke (Y2) is placed in the fourth region (PC4) of the second sub-substrate (952) of the sub-substrate (950A). The second sub-substrate (952) can attach the second yoke (Y2) to the fourth region (PC4) from which the outermost layer has been removed. The outermost layer of the second sub-substrate (952) may be a coverley layer or a protective layer. Accordingly, the problem of the second yoke (Y2) protruding further outward than the thick area of ​​the second sub-substrate (952) or coming into contact with the cover (600) can be prevented.

[0140]

[0141] As shown in FIGS. 25 and 29, the third driving unit (830) includes a third magnet (M3) and a third coil (C3), and includes a third yoke (Y3) disposed on the outside of the third coil (C3). The third magnet (M3) is disposed on the second side (S2) of the holder (400), and the second side (S2) is provided with a third recess (483) that accommodates the third magnet (M3), and the third recess (483) is open to the outside of the second side (S2) of the holder (400). The third coil (C3) is disposed on the fourth coupling part (184) of the side of the housing (100) facing the third magnet (M3), that is, the fourth coupling part (184) of the second side part (S12). The positions of the third magnet (M3) and the third coil (C3) can be interchanged. The third yoke (Y3) is coupled to the outside of the third coil (C3) and has an area or length greater than the outer area or length of the third coil (C3). The third yoke (Y3) has a magnetic material and can exert an attractive force with the third magnet (M3). The third yoke (Y3) 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.

[0142] As shown in FIG. 29, the third yoke (Y3) is placed in the second region (PC2) of the first sub-substrate (951) of the sub-substrate (950A). The first sub-substrate (952) can attach the third yoke (Y3) to the second region (PC2) from which the outermost layer has been removed. The outermost layer of the first sub-substrate (951) may be a coverley layer or a protective layer. Accordingly, the problem of the third yoke (Y3) protruding further outward than the thick area of ​​the first sub-substrate (951) or coming into contact with the cover (600) can be prevented. Since the second and third yokes (Y2, Y3) are placed on the sub-substrate (950A) on the outside of the housing (100), the increase in size of the second and third driving parts (820, 830) can be suppressed, and the driving freedom or design freedom can be improved.

[0143]

[0144] As shown in FIG. 31, the yokes (Y2A, Y2B) of the second and third driving units (820, 830) can be formed integrally. These yokes (Y2A, Y2B) can be defined as a fourth yoke, and the fourth yoke (Y2A, Y2B) is attached to an area where the outermost layer of the first and second sub-substrates (951, 952) has been removed, and includes a folded area extending from the first sub-substrate (951) to the second sub-substrate (952). The fourth yoke (Y2A, Y2B) overlaps with the second coil (C2) in the second direction (Y) and can overlap with the third coil (C3) in the first direction (X). By covering the second and third drive units (820, 830) with the fourth yoke (Y2A, Y2B), it is applied to the outside of the second and third magnets (M2, M3), so that the position of the holder (400) can always be positioned at the center, and as the position of the OIS is stably positioned at the center, correction during AF adjustment is easy, and noise generation due to movement of the OIS mode (movement to the original position) in the power-off state can be reduced.

[0145]

[0146] As shown in FIGS. 25 to 27, a first Hall sensor (HS1) may be provided within the area of ​​the first driving unit (810) to ensure driving accuracy of the first driving unit (810). The first Hall sensor (HS1) may be placed in the internal space of the first coil (C1) and electrically connected to an extension (920) bent from one end (921) of the sensor substrate (910). The first Hall sensor (HS1) is a position sensing sensor and can sense to correct the position of the lens carrier (500). As shown in FIG. 28, the extension (920) may be placed between the first coil (C1) and the first yoke (Y1) and may be coupled to the outside of the first side of the holder (400). To ensure driving accuracy of the second driving unit (820), a second Hall sensor (HS2) may be provided within the area of ​​the second driving unit (820). The second Hall sensor (HS2) 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 (HS3) may be provided within the area of ​​the third driving unit (830). The third Hall sensor (HS3) may be placed in the internal space of the third coil (C3), placed inside the first sub-substrate (951), and electrically connected to the first sub-substrate (951). The second Hall sensor (HS2) and the third Hall sensor (HS3) serve as position sensing sensors and can sense to correct the position of the holder (400).

[0147]

[0148] Referring to FIGS. 25 to 27 and FIG. 32, the bottom portion (S15) of the cavity (101) of the housing (100) may include a lower yoke storage portion (101A), a first ball lower groove (RG17, RG18), and a buffer lower recess (101B, 101C). The lower yoke storage portion (101A) is positioned in the central area of ​​the bottom portion (S15) and accommodates a holding yoke (HY2), which is a lower yoke, and the holding yoke (HY2) may overlap with the image sensor (990) in the optical axis direction (Z direction). The first ball lower groove (RG17, RG18) may be arranged as one or multiple. The first ball lower groove (RG17, RG18) may be spaced apart from each other in the second direction (Y) and may overlap with the holding yoke (HY2) in the second direction (Y). The first ball lower grooves (RG17, RG18) are positioned on both sides of the holding yoke (HY2) and may have a concave shape from the bottom surface of the bottom portion (S15). The first ball lower grooves (RG17, RG18) are defined as the first-1 ball lower groove (RG17) and the first-2 ball lower groove (RG18), and each of the first ball lower grooves (RG17, RG18) may have a polygonal or circular upper surface and a shape that gradually narrows toward the bottom. The lower portions of the first balls (281, 282) are respectively inserted into the first ball lower grooves (RG17, RG18).

[0149] The buffer lower recesses (101B, 101C) are grooves with a concave shape on the surface of the bottom portion (S15) and may be arranged as one or multiple recesses. The buffer lower recesses (101B, 101C) are arranged on both sides of the first diagonal direction of the lower yoke storage portion (101A) and may include first and second buffer lower recesses (101B, 101C). The buffer lower recesses (101B, 101C) may have a polygonal or circular shape and may overlap diagonally with the lower yoke storage portion (101A). A part of the first buffer lower recess (101B) may overlap with the first-1 ball lower groove (RG17) in the first direction (X), and a part of the second buffer lower recess (101C) may overlap with the first-2 ball lower groove (RG18) in the first direction (X). The lower recess (101B, 101C) of the buffer above can have the lower part of the buffer (BF1, BF2) inserted or attached.

[0150]

[0151] As shown in FIGS. 33, 34, and 36, the moving plate (200A) includes a coupling hole (201) in the center, a first ball upper groove (RG13, RG14) in the lower part, a buffer upper recess (28T1, 28T2) in the lower part, a second ball lower groove (RG11, RG12) in the upper part, and a boss hole (H1, H2). The coupling hole (201) and the boss hole (H1, H2) penetrate from the upper surface to the lower surface of the moving plate (200A). The boss hole (H1, H2) may be placed on one or both sides of the moving plate (200A), or may be placed as one or multiple holes, and the area of ​​each of the multiple boss holes (H1, H2) may be smaller than the area of ​​the coupling hole (201). The shape of the coupling hole (201) may be polygonal, or as another example, circular. The shape of the boss holes (H1, H2) may be circular, or as another example, polygonal. The boss holes (H1, H2) and the buffer upper recesses (28T1, 28T2) are arranged in different diagonal directions with respect to the coupling hole (201). For example, the boss holes (H1, H2) are arranged in a second diagonal direction with respect to the coupling hole (201), and the buffer upper recesses (28T1, 28T2) are arranged in a first diagonal direction with respect to the coupling hole (201).

[0152] The above buffer upper recesses (28T1, 28T2) are positioned on both lower sides of the coupling hole (201) and the lower surface of the moving plate (200A) is provided as a concave stepped area. The first ball upper grooves (RG13, RG14) are positioned on both lower sides of the coupling hole (201) and are spaced apart in the first direction (X). The first ball upper grooves (RG13, RG14) include a first-1 ball upper groove (RG13) and a first-2 ball upper groove (RG14). The first-1 ball upper groove (RG13) is positioned between the first buffer upper recess (28T1) and the second boss hole (H2), and the first-2 ball upper groove (RG14) is positioned between the second buffer upper recess (28T2) and the first boss hole (H1). Here, the moving plate (200A) has a shape in which the two corner regions (28G1, 28G2) of the first diagonal direction of the polygonal shape are removed, and the corner regions (28G1, 28G2) are respectively connected to the buffer upper recess (28T1, 28T2). The two corner regions of the first diagonal direction of the polygonal shape of the moving plate (200A) may be provided as curved surfaces.

[0153]

[0154] The second ball lower grooves (RG11, RG12) are positioned on both sides of the first direction of the coupling hole (201). A straight line passing through the second ball lower grooves (RG11, RG12) may be orthogonal to a straight line passing through the first ball upper grooves (RG13, RG14). The lower portion of the second ball (381, 382) may be positioned in the second ball lower grooves (RG11, RG12), and the upper surface may be polygonal or circular. When the moving plate (200A) is coupled to the cavity (101) of the housing (100), the first balls (281, 282) are respectively coupled between the first ball lower groove (RG17, RG18) and the first ball upper groove (RG13, RG14), and the buffers (BF1, BF2) are respectively placed between the buffer lower recess (101B, 101C) and the buffer upper recess (28T1, 28T2). Accordingly, the buffers (BF1, BF2) can mitigate the impact applied to the moving plate (200A). The buffers (BF1, BF2) may be attached using an elastomer or Poron material capable of absorbing shock. Since the first ball (281, 282) is positioned in the second direction, the moving plate (200A) is guided so that both ends of the first direction can move or rotate with respect to the second direction. The area of ​​the lower buffer recess (101B, 101C) is larger than the area of ​​the upper buffer recess (28T1, 28T2) and is positioned further outward, and the exterior of the buffer (BF1, BF2) may be exposed further outward than the edge of the moving plate (200A).

[0155]

[0156] As shown in FIGS. 34 and 41, the lower portion of the sensor base (300) includes a coupling portion (305) having a holding magnet (HM1), bosses (P1, P2), and second ball upper grooves (RG15, RG16). The coupling portion (305) protrudes toward the moving plate (200A) from the lower surface of the sensor base (300) and is coupled to the coupling hole (201) of the moving plate (200A). The holding magnet (HM1) is coupled to the inner groove (305A) of the coupling portion (305) and is exposed to the lower surface of the coupling portion (305). The coupling portion (305) may be provided with the same material as the sensor base (300) or may be formed integrally. The lower surface of the holding magnet (HM1) faces the holding yoke (HY2) and overlaps with the holding yoke (HY2) in the optical axis direction. The lower surface area of ​​the holding magnet (HM1) may be smaller than the upper surface area of ​​the holding yoke (HY2). The holding yoke (HY2) and the holding magnet (HM1) exert an attractive force, and the sensor base (300) having the holding magnet (HM1) can maintain a gap or coupling force with the housing (100) having the holding yoke (HY2). The bosses (P1, P2) are each positioned in the diagonal direction of the coupling part (305) and may correspond to the boss holes (H1, H2). The bosses (P1, P2) may be provided with the same material as the sensor base (300) or formed integrally. The bosses (P1, P2) may protrude from the lower surface of the sensor base (300) toward the bottom of the housing (100) and may be coupled to the boss holes (H1, H2) of the moving plate (200A), respectively. Accordingly, the bosses (P1, P2) can suppress horizontal movement of the moving plate (200A).

[0157] The second ball upper groove (RG15, RG16) is a concave groove shape on the lower surface of the sensor base (300), and may have a polygonal or circular shape, and may have a width that gradually narrows toward the center of the groove. The second ball upper groove (RG15, RG16) may be positioned on both sides of the first direction (X) of the coupling part (305) and may correspond to the second ball lower groove (RG11, RG12), respectively.

[0158]

[0159] The upper surface area of ​​the moving plate (200A) may be smaller than the lower surface area of ​​the sensor base (300), and the moving plate (200A) may be seated or coupled within the lower storage portion (315) of the sensor base (300). When the moving plate (200A) is seated in the lower storage portion (315) of the sensor base (300), the second balls (381, 382) are positioned between the moving plate (200A) and the sensor base (300), and may be coupled to the upper grooves (RG15, RG16) of the second balls and the lower grooves (RG11, RG12) of the second balls, respectively. The second ball (381, 382) is arranged in the first direction (X) on the moving plate (200A), thereby guiding the sensor base (300) so that both sides in the second direction (Y) can move or rotate relative to the first direction (X). An angular velocity sensor (450) may be coupled to one side of the lower portion of the sensor base (300), and the angular velocity sensor (405) is a gyroscope sensor that detects and provides information on the angle change of the rotation axis of the sensor base (300).

[0160]

[0161] As shown in FIGS. 38 to 41, the holder (400) has an opening (401) inside and is provided with a first coupling groove (481) on a first side (S1), a third recess (483) on the outside of a second side (S2), and a second recess (482) on the outside of a third side (S3). The lens carrier (500) can be seated on a bottom (415) positioned around the opening (401) of the holder (400). On the bottom surface (421) of the holder (400), a stepped area (401A) is provided around the opening (401) to which the filter portion (991) is seated. Each corner area of ​​the bottom surface of the holder (400) is provided with a concave stepped coupling recess (417) and an insertion hole (417A) inside. Each corner area of ​​the upper surface of the sensor base (300) may be provided with a mating projection (302) that is seated in each of the mating recesses (417) and an insertion projection (302A) that is fitted into each of the mating holes (417A). The inner sides of the mating recesses (417) and the mating projections (302) have a bent shape. Accordingly, the sensor base (300) and the holder (400) can be closely coupled and horizontal movement can be suppressed. When the mating recesses (417) and the mating projections (302) are mated, the sensor substrate (910) is placed in the inner area (301) of the upper surface of the sensor base (300), that is, the inner area of ​​the mating projections (302). A portion of the fourth side (S4) of the sensor base (300) may be provided with a groove (315A) to which each speed sensor (450, FIG. 35) is coupled.

[0162] As shown in FIG. 42, a sensor substrate (910) having an image sensor (990) is mounted on the sensor base (300), and the sensor substrate (910) is connected to an external connection board (906) through first and second extension parts (911, 913) and can electrically transmit and receive signals to and from the outside. The sensor substrate (910) may be made of a rigid printed circuit board (Rigid PCB). The first and second extension parts (911, 913) may be made of a flexible printed circuit board (Flexible PCB) or a rigid-flexible printed circuit board (Rigid-Flexible PCB).

[0163]

[0164] FIG. 43 is a perspective view of a mobile terminal with a camera module applied according to an embodiment. As shown in FIG. 43, 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 capturing 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 the first camera module (1000A) may enable the implementation of OIS along with an AF function. The flash module (1530) may include a light-emitting element that emits light internally. The flash module (1530) may be operated by the camera operation 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 comprising a vertical cavity surface-emitting laser (VCSEL) semiconductor device and a light-receiving part that converts light energy into electrical energy, such as a photodiode.

[0165] FIG. 44 is a perspective view of a vehicle having a camera module applied according to an embodiment. As shown in FIG. 44, 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.

[0166] 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.

[0167] 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.

[0168] 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 comprising first and second sides facing each other in a first direction, and third and fourth sides facing each other in a second direction different from the first direction; A moving plate disposed within the above housing; A sensor base disposed on the above-mentioned moving plate; A sensor substrate disposed on the sensor base and having an image sensor; A holder having a through hole inside and disposed on the sensor substrate; A lens carrier disposed on the inner side of the above holder and having a lens; A first driving unit disposed on the first side of the housing and coupled to the holder and the lens carrier; A second driving unit coupled to the third side of the holder and the housing; A third driving unit coupled to the fourth side of the holder and the housing; It includes a fourth driving unit disposed between the bottom part of the housing and the moving plate, and The lens carrier is moved in the direction of the optical axis by the first driving unit, and A camera module in which the lens holder is tilted about a first axis parallel to the first direction by the second and third driving units, and tilted about a second axis parallel to the second direction by the fourth driving unit.

2. In claim 1, the first driving unit comprises a first magnet coupled to the outer side of the first side of the lens carrier, a first coil coupled to a first coupling groove on the first side of the holder facing the first magnet, and a first yoke disposed on the inner side of the first magnet. A camera module comprising a driving substrate disposed on the outer side of the first coil and connected to the sensor substrate.

3. A camera module according to paragraph 2, comprising a first holding yoke disposed inside the first coil and facing the first magnet, and a first Hall sensor.

4. In paragraph 2 or 3, the sub-substrate disposed on the lower surface of the housing, and A camera module comprising a first and second sub-sub 5. In paragraph 4, the second driving unit comprises a second magnet coupled to the third side of the holder, a second coil coupled to a second coupling groove on the third side of the housing facing the second magnet, and a second yoke disposed inside the second magnet. A second Hall sensor is placed inside the second coil, and A camera module in which the second coil and the second Hall sensor are disposed inside the first sub-substrate.

6. In paragraph 4, the third driving unit comprises a third magnet coupled to the fourth side of the holder, a third coil coupled to a fourth coupling groove on the fourth side of the housing facing the third magnet, and a third yoke disposed inside the third magnet. A third Hall sensor is placed inside the third coil, and The third coil and the third Hall sensor are disposed inside the second sub-substrate, and The fourth driving unit comprises a fourth magnet coupled within the sensor base, a fourth coil disposed on the sub-substrate facing the fourth magnet, and a fourth yoke disposed between the fourth magnet and the sub-substrate. A camera module having a second holding yoke and a fourth Hall sensor disposed inside the fourth coil.

7. In paragraph 6, the bottom portion of the housing has an open area open in the center and a stepped storage portion from the lower surface of the bottom portion, and The above moving plate is positioned on the above open area, and The above storage portion is configured such that the above sub-substrate is placed thereon, The above open area is a camera module that overlaps with the moving plate, the fourth magnet, and the fourth coil in the direction of the optical axis.

8. In Clause 7, the moving plate is, A coupling hole penetrating the interior facing the second holding yoke; First ball upper holes disposed on both sides of the first direction relative to the above coupling hole; It includes second ball lower holes positioned on both sides of the second direction of the upper surface based on the aforementioned coupling hole, and A camera module comprising first and second balls, some of which are disposed in the first ball lower holes and the first ball upper holes.

9. In claim 8, the housing comprises first ball lower grooves disposed on both sides of the first direction of the bottom portion, and The first ball is disposed in the first ball upper hole and the first ball lower groove, respectively. The sensor base includes second ball upper grooves disposed on both sides of the second direction of the lower surface, and The camera module, wherein the second ball is disposed in the lower hole of the second ball and the upper groove of the second ball, respectively.

10. A housing having first to fourth side portions and a cavity inside; A moving plate disposed in the cavity of the above housing; A sensor base disposed on the above-mentioned moving plate; A substrate portion comprising a sensor substrate having an image sensor disposed on the sensor base; A holder disposed on the sensor base and the substrate portion; A lens carrier disposed on the inner side of the above holder and having a lens; A first driving unit disposed on the inner side of the first side portion of the housing and coupled to the holder and the lens carrier; A second driving unit coupled to the second side portion of the holder and the housing; A third driving unit coupled to the third side portion of the holder and the housing; A camera module comprising a sub-substrate extending from the outer side of the second side portion of the housing to the outer side of the third side portion.

11. In claim 10, the first driving unit comprises a first magnet coupled to the outer side of a first side of the lens carrier, a first coil coupled to a first coupling groove of the holder facing the first magnet, and a first yoke disposed on the outer side of the first coil. The second driving unit comprises a second magnet coupled to a third side of the holder, a second coil coupled to a second coupling groove on the third side of the housing facing the second magnet, and a second yoke disposed on the outer side of the sub-substrate. The third driving unit comprises a third magnet coupled to a second side of the holder, a third coil coupled to a third coupling groove on the second side of the housing facing the third magnet, and a third yoke disposed on the outside of the sub-substrate. The third yoke is a camera module positioned on the outer side of the second side portion of the housing.

12. In paragraph 11, the first and second side portions are positioned on both sides of the first direction, and The third and fourth side portions are positioned on both sides of the second direction, which is orthogonal to the first direction, and The above-mentioned second yoke and the above-mentioned third yoke are camera modules that are separated from or connected to each other.

13. In paragraph 12, the sub-substrate comprises a first sub-substrate disposed in an outer storage area of ​​a second side portion of the housing, and a second sub-substrate disposed in an outer storage area of ​​a third side portion of the housing. The third yoke is disposed on the outer side of the first sub-substrate, and The second yoke is disposed on the outer side of the second sub-substrate, and A camera module in which the area of ​​the first and second sub-substrates on which the second and third yokes are arranged has a thinner thickness than the thickness of other areas and is a stepped area.

14. In any one of claims 11 to 13, the apparatus comprises a plurality of buffers disposed between the moving plate and the bottom of the housing, and The above housing is, A lower yoke storage section in which a holding yoke is stored in the center of the bottom; First ball lower grooves disposed on both sides of the second direction of the lower yoke storage portion; and It includes buffer lower recesses disposed on both sides of the first diagonal direction of the lower yoke storage portion, and The above moving plate is, A connecting hole penetrating the center of the bottom facing the holding yoke; First ball upper grooves positioned on both sides of the second direction relative to the above coupling hole; Concave buffer upper recesses on both sides of the first diagonal direction of the lower surface based on the coupling hole; and It includes second ball lower grooves positioned on both sides of the first direction of the upper surface based on the aforementioned coupling hole, and It includes a first ball disposed between the first ball lower groove and the first ball upper groove, respectively, and A camera module in which the buffer is respectively positioned between the lower recess of the buffer and the upper recess of the buffer.

15. In paragraph 14, the moving plate includes a boss hole disposed on one or both sides in a second diagonal direction with respect to the coupling hole, and The sensor base comprises a boss protruding into the boss hole of the moving plate; a coupling part protruding into the coupling hole and having a holding magnet inside; and second ball upper grooves disposed on both sides of the first direction of the lower surface with respect to the coupling part. It includes a second ball disposed between the second ball lower groove and the second ball upper groove, respectively. The above sub-substrate is a camera module comprising a plurality of pads exposed on the lower outer side.

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