Camera actuator and camera module including the same

Abstract

A camera actuator according to an embodiment of the present invention comprises: a housing; the first lens assembly and the second lens assembly move in the optical axis direction relative to the shell; a first driving unit that moves the first lens assembly; a second driving unit that moves the second lens assembly; and a first yoke provided so as to overlap with the first driving unit in a direction perpendicular to the optical axis direction. The first yoke includes a first region and a second region having a different thickness from the first region.

Description

Technical Field

[0001] The present disclosure relates to a camera actuator and a camera module including the camera actuator. Background Art

[0002] A camera is a device for taking photos or videos of an object, and is mounted on a mobile device, a drone, a vehicle, etc. The camera module may have an image stabilization (IS) function for correcting or preventing image shaking caused by user motion in order to improve the quality of an image, an auto focus (AF) function for aligning the focus of a lens by automatically adjusting the spacing between an image sensor and a lens, and a zoom function for capturing a remote object by increasing or decreasing the magnification of the remote object with a zoom lens.

[0003] Meanwhile, as the camera resolution increases, the pixel density of the image sensor increases, and thus the size of the pixel becomes smaller, and as the pixel becomes smaller, the amount of light received in the same time decreases. Therefore, when the camera has a higher pixel density, image shake caused by hand shake that occurs when the shutter speed is reduced in a dark environment may occur more seriously. As a representative IS technology, there is an optical image stabilizer (OIS) technology that corrects motion by changing the path of light.

[0004] According to the general OIS technology, the movement of the camera can be detected by a gyro sensor or the like, and the lens can be tilted or moved based on the detected movement, or the camera module including the lens and the image sensor can be tilted or moved. When the camera module including the lens or the lens and the image sensor is tilted or moved for OIS, it is necessary to additionally ensure that there is a space around the lens or the camera module for tilting or moving.

[0005] Meanwhile, the actuator for OIS may be arranged around the lens. In this case, the actuator for OIS may include an actuator responsible for tilting two axes (ie, an X-axis and a Y-axis perpendicular to the Z-axis, which is the optical axis).

[0006] However, according to the demand for ultra-thin and ultra-small camera modules, there is a large space limitation for arranging an actuator for OIS, and it may be difficult to ensure sufficient space for a camera module including a lens or including a lens and an image sensor itself that can be tilted or moved for OIS. In addition, when a camera has a higher pixel density, it is preferred that the size of the lens is increased to increase the amount of received light, and there may be a limitation on increasing the size of the lens due to the space occupied by the actuator used for OIS.

[0007] In addition, when the zoom function, AF function, and OIS function are all included in the camera module, there is also a problem that the OIS magnet and the AF / zoom magnet are arranged close to each other to cause magnetic field interference. In addition, in the miniaturized camera module, there is a problem that it is difficult to connect with the board. In addition, the requirement for protecting circuit elements from the inflow of foreign matter, that is, improving reliability, is also increasing. Summary of the invention

[0008] Technical issues

[0009] The present disclosure is directed to providing a camera actuator and a camera module with minimized magnetic field interference.

[0010] In addition, the present disclosure is directed to providing a camera actuator and a camera module in which auto focus and zoom (magnification) are accurately and precisely performed by reducing a magnetic force generated by a magnet of an auto focus (AF) / zoom camera actuator or the like.

[0011] In addition, the present disclosure is directed to providing an AF / zoom camera actuator and a camera module including the same, in which the influence of an optical image stabilizer (OIS) camera actuator is minimized.

[0012] In addition, the present disclosure is directed to providing a camera actuator and a camera module having optimized friction on the movement of a first lens assembly and a second lens assembly.

[0013] In addition, the present disclosure is directed to providing a camera actuator and a camera module, in which a sufficient space for connection with a main board is ensured in a camera module including two actuators.

[0014] In addition, the present disclosure is directed to providing a camera actuator and a camera module having improved reliability by protecting circuit elements and the like from inflow of foreign substances.

[0015] In addition, the present disclosure is directed to providing a camera actuator and a camera module which easily secure a component mounting space and have improved strength due to an increase in a bonding area for connection.

[0016] The present disclosure is directed to providing a camera actuator suitable for an ultra-thin, ultra-small, and high-resolution camera.

[0017] The objects of the embodiments are not limited thereto, and may also include objects or effects that can be identified from configurations or embodiments to be described below.

[0018] Technical Solution

[0019] A camera actuator according to an embodiment of the present disclosure includes: a housing; a first lens assembly and a second lens assembly, the first lens assembly and the second lens assembly being configured to move relative to the housing along an optical axis; a first driving unit, the first driving unit being configured to move the first lens assembly; a second driving unit, the second driving unit being configured to move the second lens assembly; and a first magnetic yoke, the first magnetic yoke being arranged to overlap with the first driving unit in a direction perpendicular to the optical axis direction, wherein the first magnetic yoke includes a first region and a second region, the second region having a thickness different from that of the first region.

[0020] The second region may be thicker than the first region.

[0021] A length of the second region in the optical axis direction may be smaller than a length of the first region in the optical axis direction.

[0022] The first driving unit may include a first magnet, and the first magnet includes a first pole region, a neutral region, and a second pole region which are sequentially disposed along the optical axis direction.

[0023] When the first magnet is maximally moved in the optical axis direction, the first pole region of the first magnet may be arranged to overlap with the first region.

[0024] When the first magnet is maximally moved in a direction opposite to the optical axis direction, the first pole region of the first magnet may be arranged to overlap with the second region.

[0025] When the first magnet is maximally moved in a direction opposite to the optical axis direction, the length of the second region may be greater than the length of an overlapping region between the second region and the first pole region.

[0026] When the first magnet is maximally moved in a direction opposite to the optical axis direction, the length of the second region may be smaller than the sum of the length of the overlapping region between the second region and the first polar region and the length of the neutral region.

[0027] The length of the first polar region may be different from the length of the second region.

[0028] The length of the second region may be smaller than the length of the first magnet.

[0029] The first yoke may include a boundary region between the first region and the second region, and when the first magnet is maximally moved in a direction opposite to the optical axis direction, the boundary region may overlap with the neutral region.

[0030] The camera actuator may include a second yoke disposed to overlap with the second driving unit in a direction perpendicular to the optical axis direction, wherein a first region of the second yoke may have a different thickness from a second region of the second yoke.

[0031] The second region and the first region of the first yoke may be sequentially disposed along the optical axis direction.

[0032] The second region of the first yoke may protrude outward or inward from the first region.

[0033] The first driving unit may include a first magnet and a first coil facing the first magnet, and the first coil may include a hollow portion.

[0034] The second region may not overlap with the hollow portion.

[0035] The second region of the first yoke may overlap the second region of the second yoke.

[0036] At least a portion of the second region of the first yoke may be misaligned with the second region of the second yoke.

[0037] The length of the second region in the optical axis direction may be in the range of 20% to 50% of the length of the first yoke in the optical axis direction.

[0038] The thickness of the second region of the first yoke may be 1.2 to 1.7 times the thickness of the first region of the first yoke.

[0039] A camera actuator according to an embodiment includes: a housing; a first lens assembly and a second lens assembly, the first lens assembly and the second lens assembly being arranged in the housing; a first driving unit, the first driving unit being configured to move the first lens assembly along the optical axis direction; and a first magnetic yoke, the first magnetic yoke being arranged to overlap with the first driving unit in a direction perpendicular to the optical axis direction, wherein the first driving unit includes a first magnet, the first magnet includes a first polar region, a second polar region, and a neutral region arranged between the first polar region and the second polar region, the first magnetic yoke includes a first region and a second region, the second region has a magnetic strength different from that of the first region, and when the first lens assembly moves to a maximum moving distance, the second region overlaps with the first polar region of the first magnet in a direction perpendicular to the optical axis direction.

[0040] When the first lens assembly is maximally moved in a direction opposite to the optical axis direction, a boundary region between the first region and the second region may overlap with the neutral region.

[0041] The second region may not overlap with the second pole region in a direction perpendicular to the optical axis direction.

[0042] A camera actuator according to an embodiment of the present disclosure includes: a housing; a first lens assembly and a second lens assembly, the first lens assembly and the second lens assembly being configured to move relative to the housing along an optical axis; a first driving unit, the first driving unit being configured to move the first lens assembly; a second driving unit, the second driving unit being configured to move the second lens assembly; and a first magnetic yoke, the first magnetic yoke being arranged to overlap with the first driving unit in a direction perpendicular to the optical axis direction, wherein the first magnetic yoke includes a first region and a second region, the second region having a magnetic strength different from that of the first region.

[0043] A camera module according to an embodiment of the present disclosure includes a shell, two movable lens groups arranged in the shell, and a plate connected to the shell, wherein the shell includes a first side surface perpendicular to the optical axis, a second side surface connected to the first side surface, and a third side surface facing the second side surface, the plate includes a first plate arranged on the first side surface and the second side surface, and a second plate arranged on the second side surface and the third side surface, an area of ​​the first plate arranged on the second side surface includes a plurality of terminals, an area of ​​the second plate arranged on the second side surface includes a plurality of solder pads, and at least some of the plurality of terminals are soldered to at least some of the plurality of solder pads.

[0044] The number of the plurality of terminals and the number of the plurality of pads may be at least six.

[0045] Each of the plurality of terminals may correspond to one of the plurality of pads.

[0046] The number of the plurality of terminals or the plurality of pads may be equal to the number of welding operations.

[0047] A cross-sectional area of ​​the plurality of pads may be greater than a cross-sectional area of ​​the plurality of terminals.

[0048] The plurality of terminals may include grooves formed in some areas of the plurality of terminals.

[0049] At least some of the plurality of terminals may overlap with the plurality of pads in a direction perpendicular to the optical axis.

[0050] Multiple terminals may be arranged along the optical axis.

[0051] Multiple pads may be arranged along the optical axis.

[0052] According to an embodiment, a camera module includes: a second actuator including two movable lens groups; a first board on which an image sensor is arranged; and a second board overlapping with a direction perpendicular to the optical axis, wherein the first board includes a first unit board on which the image sensor is arranged and a second unit board connected to the first unit board and including a plurality of terminals, the second board includes a first unit board arranged on a first side surface of the second actuator and a second unit board connected to the first unit board and including a plurality of pads, the second unit board of the first board and the second unit board of the second board overlap with each other in a direction perpendicular to the optical axis, and at least some of the plurality of terminals on the second unit board of the first board correspond to at least some of the plurality of pads on the second unit board of the second board.

[0053] At least some of the plurality of terminals on the second unit board of the first board may be coupled to at least some of the plurality of pads on the second unit board of the second board by welding.

[0054] The first unit board of the first board may not be connected to the second unit board of the second board.

[0055] The camera module may include a first yoke disposed between the second unit board of the first board and the second unit board of the second board.

[0056] The second unit plate of the first plate may have a flexible region and a rigid region.

[0057] The camera module may include a first actuator including an optical member configured to change an optical path.

[0058] The plurality of terminals on the second unit board of the first board may be disposed at an edge of the second unit board of the first board.

[0059] The plurality of terminals on the second unit board of the first board may be disposed at an upper side and a lower side of the second unit board of the first board.

[0060] According to an embodiment of the present disclosure, a camera module includes a first actuator and a second actuator and a main board arranged in sequence along an optical axis direction, the main board including: a first unit main board on which an image sensor is arranged; and a second unit main board extending from the first unit main board along the optical axis direction and overlapping with the second actuator in a horizontal direction perpendicular to the optical axis direction, wherein the second actuator includes a first plate overlapping with the second unit main board in the horizontal direction, and the first plate is arranged to be spaced apart from the first unit main board in the optical axis direction.

[0061] The second unit main board may include a first terminal unit, the first board may include a second terminal unit, and the first terminal unit may be welded to the second terminal unit.

[0062] The second actuator may include a first yoke disposed at an outer side of the first plate, and the first yoke may be disposed between the second unit main plate and the first plate.

[0063] The first yoke may be coupled to the second unit main plate and the first plate between the second unit main plate and the first plate.

[0064] The first actuator may include a plurality of sub-boards facing each other.

[0065] The plurality of sub-boards may not overlap with the second unit main board in the horizontal direction.

[0066] The plurality of sub-boards may overlap with the second unit main board in a horizontal direction.

[0067] The second unit main board may include a third terminal unit, at least one of the plurality of sub-boards may include a fourth terminal unit, and the third terminal unit may be welded to the fourth terminal unit.

[0068] The main board may include a sensor base surrounding the image sensor, and the sensor base may include a base housing having a base hole.

[0069] The main board may include an optical filter disposed above the image sensor, the base hole may include a first hole area in which the optical filter is disposed, and the first hole area may further include a blocking structure located at an outer side of the optical filter.

[0070] The base hole may include a second hole region and a third hole region sequentially disposed below the first hole region, and the image sensor may be disposed in the third hole region.

[0071] The sensor base may further include a vent hole connected to the third hole region.

[0072] The first terminal unit may overlap with the second terminal unit in a horizontal direction.

[0073] The main board may include a sensor base surrounding the image sensor, and the first plate may be disposed to be spaced apart from the sensor base in the optical axis direction.

[0074] The first plate may overlap with the sensor base in the optical axis direction.

[0075] The first board may be positioned in a region between the plurality of sub-boards.

[0076] An end portion of the second unit main plate adjacent to the first actuator may be positioned at an inner side of an end portion in contact with the first unit main plate.

[0077] The length of the second unit main board in the vertical direction may be smaller than the length of the first board in the vertical direction, and the vertical direction may be a direction perpendicular to the optical axis direction and the horizontal direction.

[0078] The first terminal unit may not overlap with the third terminal unit in the optical axis direction.

[0079] The first terminal unit may be positioned at a first corner of the second unit main board, and the third terminal unit may be positioned at a second corner of the second unit main board that is perpendicular to the first corner.

[0080] Beneficial Effects

[0081] According to the present disclosure, a camera actuator and a camera module with minimized magnetic field interference can be realized.

[0082] In addition, according to the present disclosure, a camera actuator and a camera module in which automatic focusing and zooming (magnification) are accurately and precisely performed by reducing the magnetic force generated by a magnet of an AF / zoom camera actuator or the like can be realized.

[0083] In addition, according to the present disclosure, an AF / zoom camera actuator in which the influence of an OIS camera actuator is minimized and a camera module including the same may be realized.

[0084] In addition, according to the present disclosure, a camera actuator and a camera module having optimized friction for movement of a first lens assembly and a second lens assembly can be realized.

[0085] In addition, according to the present disclosure, a camera actuator and a camera module in which a sufficient space for connection with a main board is ensured in a camera module including two actuators can be realized.

[0086] In addition, according to the present disclosure, a camera actuator and a camera module having improved reliability by protecting circuit elements and the like from inflow of foreign substances can be realized.

[0087] In addition, according to the present disclosure, it is possible to realize a camera actuator and a camera module which easily secure a component mounting space and have improved strength due to an increase in a bonding area for connection.

[0088] According to the present disclosure, a camera actuator suitable for an ultra-thin, ultra-small, and high-resolution camera can be realized.

[0089] Various beneficial advantages and effects of the present disclosure are not limited to the above contents and will be more easily understood in the course of describing specific embodiments of the present disclosure. BRIEF DESCRIPTION OF THE DRAWINGS

[0090] Figure 1 is a perspective view of a camera module according to an embodiment;

[0091] Figure 2 is an exploded perspective view of a camera module according to an embodiment;

[0092] Figure 3 It is along Figure 1 A view of the camera module along line AA′ in FIG.

[0093] Figure 4 is a perspective view of a first camera actuator according to an embodiment;

[0094] Figure 5 is an exploded perspective view of a first camera actuator according to an embodiment;

[0095] Figure 6a is a perspective view of a first housing of a first camera actuator according to an embodiment;

[0096] Figure 6b The first housing of the first camera actuator is in contact with Figure 6a Stereoscopic images in different orientations;

[0097] Figure 6c is a front view of a first housing of a first camera actuator according to an embodiment;

[0098] Figure 7 is a perspective view of an optical member of a first camera actuator according to an embodiment;

[0099] Figure 8a is a perspective view of a holder of a first camera actuator according to an embodiment;

[0100] Figure 8b is a bottom view of a holder of a first camera actuator according to an embodiment;

[0101] Figure 8c is a front view of a holder of a first camera actuator according to an embodiment;

[0102] Figure 8d is a rear view of a second member of a first camera actuator according to an embodiment;

[0103] Figure 8e is a bottom view of a second member of a first camera actuator according to an embodiment;

[0104] Figure 9a is a perspective view of a tilt guide unit of a first camera actuator according to an embodiment;

[0105] Figure 9b The first camera actuator is a tilt guide unit in contact with Figure 9a Stereoscopic images in different orientations;

[0106] Fig.9c It is along Figure 9a A view of the tilt guide unit of the first camera actuator along line FF′;

[0107] Fig.10 is a view illustrating a first driving unit of a first camera actuator according to an embodiment;

[0108] Fig.11a is a perspective view of a first camera actuator according to an embodiment;

[0109] Fig.11b It is along Fig.11a A view of the first camera actuator along line PP′ in FIG.

[0110] Fig.11c It is along Fig.11a A view of the first camera actuator along line QQ′;

[0111] Fig.12a is a perspective view of a first camera actuator according to an embodiment;

[0112] Figure 12b It is along Fig.12a A view of the first camera actuator along line SS′ in FIG.

[0113] Fig.12c It shows Figure 12b An exemplary view of the motion of the first camera actuator illustrated in FIG.

[0114] Fig.13a It is along Fig.12a A view of the first camera actuator along line RR′ in FIG.

[0115] Fig.13b yes Fig.13a An exemplary view of the motion of the first camera actuator illustrated in FIG.

[0116] Fig.14 is a perspective view of a second camera actuator according to an embodiment;

[0117] Fig.15 is an exploded perspective view of a second camera actuator according to an embodiment;

[0118] Fig.16 It is along Fig.14 A view of the second camera actuator along line DD′ in FIG.

[0119] Fig.17a , Fig.17b and Fig.17c is a perspective view of a second housing in a second camera actuator according to an embodiment;

[0120] Fig.18 and Fig.19 is a view for describing each driving operation of the lens assembly according to the embodiment;

[0121] Fig. 20 is a view for describing driving of a second camera actuator according to an embodiment;

[0122] Fig.21 is a schematic diagram illustrating a circuit board according to an embodiment;

[0123] Fig. 22 is a perspective view of a first lens assembly, a first coupling member, a second coupling member, and a second lens assembly according to an embodiment;

[0124] Fig.23 is a view in which a second housing is removed from a second camera actuator according to an embodiment;

[0125] Fig.24 is a side view of various examples of a second yoke unit in a second camera actuator according to an embodiment;

[0126] Fig.25 is a top view of various examples of a second yoke unit in a second camera actuator according to an embodiment;

[0127] Fig.26 is a view illustrating one example of a second yoke unit in a second camera actuator according to an embodiment;

[0128] Fig. 27 is a view illustrating another example of a second yoke unit in a second camera actuator according to an embodiment;

[0129] Fig.28 is a cross-sectional view of a second camera actuator in a wide angle state according to an embodiment;

[0130] Fig.29 is a cross-sectional view of a second camera actuator in a telephoto state according to an embodiment;

[0131] Fig.30 is a graph for describing driving of the third group when the structure of the second yoke unit is not applied to the second camera actuator according to the embodiment;

[0132] Fig.31 is a graph for describing driving of the third group when the structure of the second yoke unit is applied to the second camera actuator according to the embodiment;

[0133] Fig.32 is a perspective view of a circuit board, a first camera actuator, and a second camera actuator separated according to another embodiment;

[0134] Fig.33a is a perspective view of a circuit board, a first driving unit (excluding some parts), and a second driving unit (excluding some parts) according to an embodiment;

[0135] Figure 33b is a conceptual diagram for describing the connection of a circuit board, a first driving unit (excluding some parts), and a second driving unit (excluding some parts) according to an embodiment;

[0136] Fig.33c is a conceptual diagram illustrating connection of a circuit board, a first driving unit (excluding some parts), and a second driving unit (excluding some parts) according to a modified example;

[0137] Fig.33d is a conceptual diagram illustrating connections between a circuit board, a first driving unit (excluding some parts), and a second driving unit (excluding some parts) according to another embodiment;

[0138] Fig.33e is a conceptual diagram illustrating connections between a circuit board, a first driving unit (excluding some parts), and a second driving unit (excluding some parts) according to still another embodiment;

[0139] Fig.34 is a plan view of a circuit board, a first driving unit (excluding some parts), and a second driving unit (excluding some parts) according to an embodiment;

[0140] Fig.35a shows a perspective view and a plan view of a circuit board according to an embodiment;

[0141] Fig.35b is a side view of a circuit board according to an embodiment;

[0142] Fig.35c is a rear view of a circuit board according to an embodiment;

[0143] Fig.35d is a front view of a circuit board according to an embodiment;

[0144] Fig.35e is an internal unfolded plan view of a circuit board according to an embodiment;

[0145] Figure 35f is an external developed plan view of a circuit board according to an embodiment;

[0146] Fig.36a is a perspective view of a second drive unit (excluding some parts) in a side direction according to an embodiment;

[0147] Fig.36b is a perspective view of a second driving unit (excluding some parts) according to an embodiment in another side direction;

[0148] Fig.37a is a perspective view of a first driving unit (excluding some parts) in a side direction according to an embodiment;

[0149] Figure 37b is a perspective view of a first driving unit (excluding some parts) according to an embodiment in another side direction;

[0150] Fig.38a is an external development plan view of a circuit board, a first board unit, and a second board unit according to an embodiment;

[0151] Figure 38b yes Fig.38a An enlarged view of part K1 in FIG.

[0152] Fig.38c yes Fig.38a An enlarged view of part K2 in FIG.

[0153] Fig.38d It is along Figure 38b A view of the circuit board, the first board unit and the second board unit along line OO' in FIG.

[0154] Fig.39 is a plan view of a sensor base, an optical filter, and an image sensor according to an embodiment;

[0155] Fig.40 It is along Fig.39 A view of the sensor base, filter and image sensor along line JJ' in FIG.

[0156] Fig.41 is a plan view of a sensor base and an image sensor according to an embodiment;

[0157] Fig.42 is a view illustrating a second housing and a fixed lens assembly according to an embodiment;

[0158] Fig.43 is a perspective view of a second housing according to an embodiment;

[0159] Fig.44 is a view of a fixed lens assembly according to an embodiment;

[0160] Fig.45 It is along Fig.42 A view of the second housing and fixed lens assembly taken along line LL';

[0161] Fig.46 It is along Fig.42A view of the second housing and the fixed lens assembly along line MM';

[0162] Fig.47 is a perspective view of a moving terminal applied to a camera module according to an embodiment; and

[0163] Fig.48 is a perspective view of a vehicle to which the camera module according to the embodiment is applied. DETAILED DESCRIPTION

[0164] Since the present disclosure may have various changes and various embodiments, specific embodiments are illustrated and described in the drawings. However, it should be understood that the present disclosure is not intended to limit specific embodiments, and the present disclosure should be understood to include all modifications, equivalents and substitutes included in the spirit and scope of the present disclosure.

[0165] Terms including ordinal numbers such as first or second can be used to describe various components, but these components are not limited by the terms. The terms are only for the purpose of distinguishing one component from another component. For example, without departing from the scope of the present disclosure, the second component can be referred to as the first component, and similarly, the first component can also be referred to as the second component. The term "and / or" includes a combination of multiple related listed items or any one of multiple related listed items.

[0166] When a certain component is described as being “connected” or “coupled” to another component, it should be understood that the certain component may be directly connected or coupled to the other component, or other components may be disposed between the certain component and the other component. On the other hand, when a certain component is described as being “directly connected” or “directly coupled” to another component, it should be understood that no other components are disposed between the certain component and the other component.

[0167] The terms used in this application are only used to describe specific embodiments and are not intended to limit the present disclosure. Unless the context clearly provides otherwise, singular expressions include plural expressions. In this application, it should be understood that terms such as "including" or "having" are intended to indicate the presence of features, numbers, steps, operations, components, parts, or combinations thereof described in this specification, but do not exclude the possibility of the presence or addition of one or more other features, numbers, steps, operations, components, parts, or combinations thereof.

[0168] Unless otherwise defined, all terms used herein, including technical or scientific terms, have the same meanings as those generally understood by those skilled in the art to which the present disclosure belongs. For example, terms defined in commonly used dictionaries should be interpreted as having a meaning consistent with the meaning in the context of the relevant art, and should not be interpreted in an ideal or overly formal sense unless clearly defined in the present application.

[0169] Hereinafter, each embodiment will be described in detail with reference to the accompanying drawings, and regardless of the reference numerals, the same or corresponding parts are given the same reference numerals, and overlapping descriptions of the same or corresponding parts will be omitted. In addition, the drawings observed correspond to the drawings along the cutting surface.

[0170] Figure 1 is a perspective view of a camera module according to an embodiment, Figure 2 is an exploded perspective view of a camera module according to an embodiment, and Figure 3 It is along Figure 1 Cross-sectional view along line AA'.

[0171] Reference Figure 1 and Figure 2 , the camera module 1000 according to the embodiment may include a cover CV, a first camera actuator 1100, a second camera actuator 1200, and a circuit board 1300. Here, the first camera actuator 1100 may be used interchangeably with the "first actuator", and the second camera actuator 1200 may be used interchangeably with the "second actuator". In addition, when the first camera actuator is described as the "second camera actuator" according to the sequence, the second camera actuator is described as the "first camera actuator".

[0172] The cover CV may cover the first camera actuator 1100 and the second camera actuator 1200. The coupling strength between the first camera actuator 1100 and the second camera actuator 1200 may be increased by the cover CV.

[0173] In addition, the cover CV may be made of a material that blocks electromagnetic waves. Therefore, the first camera actuator 1100 and the second camera actuator 1200 in the cover CV may be easily protected.

[0174] In addition, the first camera actuator 1100 may be an optical image stabilizer (OIS) actuator. For example, the first camera actuator 1100 may move an optical member in a direction perpendicular to an optical axis (an axis of incident light).

[0175] The first camera actuator 1100 may include a fixed focal length lens disposed in a predetermined lens barrel (not shown). The fixed focal length lens may also be referred to as a “single focal length lens” or a “single lens”.

[0176] The first camera actuator 1100 can change the optical path. In an embodiment, the first camera actuator 1100 can change the optical path vertically by an internal optical component (e.g., a prism or a mirror). For example, the optical component can change the light from a first direction (X-axis direction) to a third direction (Z-axis direction). Alternatively, the optical component can change the light from a first axis to a second axis. Through this configuration, even when the thickness of the mobile terminal is reduced, a lens having a focal length greater than the thickness of the mobile terminal is disposed in the mobile terminal by a change in the optical path, so that zoom, auto focus (AF), zoom, and OIS functions can be performed.

[0177] However, the present disclosure is not limited thereto, and the first camera actuator 1100 may change the optical path vertically or a plurality of times at a predetermined angle.

[0178] The second camera actuator 1200 may be disposed at the rear end portion of the first camera actuator 1100. The second camera actuator 1200 may be coupled to the first camera actuator 1100. In addition, the mutual coupling may be performed by various methods. In the present disclosure, the front end portion may be an end portion in the opposite direction of the optical axis, and the rear end portion may be an end portion in the optical axis direction (Z-axis direction).

[0179] In addition, the second camera actuator 1200 may be a zoom actuator or an AF actuator. For example, the second camera actuator 1200 may support one or more lenses and perform an AF function or a zoom function by moving the lenses according to a predetermined control signal of the control part.

[0180] Additionally, the lens or lenses may be independently or individually movable along the optical axis.

[0181] The circuit board 1300 may be provided at a rear end portion of the second camera actuator 1200. The circuit board 1300 may be electrically connected to the second camera actuator 1200 and the first camera actuator 1100. In addition, a plurality of circuit boards 1300 may be provided.

[0182] The camera module according to the embodiment may include one or more camera modules. For example, the plurality of camera modules may include a first camera module and a second camera module.

[0183] In addition, the first camera module may include one or more actuators. For example, the first camera module may include a first camera actuator 1100 and a second camera actuator 1200.

[0184] In addition, the second camera module may include an actuator (not shown) disposed in a predetermined housing (not shown) and capable of driving the lens unit. The actuator may be a voice coil motor, a microactuator, a silicon actuator, etc. and may be applied in various methods such as an electrostatic method, a thermal method, a dual piezoelectric chip method, and an electrostatic force method, but the present disclosure is not limited thereto. In addition, in the specification, the camera actuator may be referred to as an "actuator" or the like. In addition, a camera module including a plurality of camera modules may be installed in various electronic devices such as a mobile terminal. In addition, the actuator may be a device for moving or tilting a lens or an optical member. However, hereinafter, the actuator will be described as including a lens or an optical member. In addition, the actuator may be referred to as a "lens transfer device", a "lens moving device", an "optical member transfer device", an "optical member moving device", or the like.

[0185] Reference Figure 3 , a camera module according to an embodiment may include a first camera actuator 1100 for performing an OIS function and a second camera actuator 1200 for performing a zoom function and an AF function.

[0186] Light may enter the camera module or the first camera actuator through an opening area positioned in the upper surface of the first camera actuator 1100. That is, light may enter the first camera actuator 1100 along an optical axis direction (e.g., an X-axis direction based on incident light), and the optical path may be changed along a vertical direction (e.g., a Z-axis direction) by an optical member. In addition, light may pass through the second camera actuator 1200 and may be incident on the image sensor IS positioned at one end of the second camera actuator 1200 (path). In this specification, the Z-axis direction or the third direction will be described as the optical axis direction as follows.

[0187] In this specification, the lower surface refers to a side in the first direction. In addition, the first direction is the X-axis direction in the drawings and can be used interchangeably with the second axis direction, etc. The second direction is the Y-axis direction in the drawings and can be used interchangeably with the first axis direction, etc. The second direction is a direction perpendicular to the first direction. In addition, the third direction is the Z-axis direction in the drawings and can be used interchangeably with the third axis direction, etc. In addition, the third direction is perpendicular to both the first direction and the second direction. Here, the third direction (Z-axis direction) corresponds to the optical axis direction, and the first direction (X-axis direction) and the second direction (Y-axis direction) are directions perpendicular to the optical axis. In addition, hereinafter, the optical axis direction is the third direction (Z-axis direction) in the description of the first camera actuator 1100 and the second camera actuator 1200, and will be described based on this below.

[0188] In addition, in the present specification, the inside may be a direction from the cover (CV) toward the first camera actuator and the second camera actuator, and the outside may be the opposite direction of the inside. That is, the first camera actuator and the second camera actuator may be positioned at the inside of the cover CV, and the cover CV may be positioned at the outside portion of the first camera actuator or the second camera actuator. In addition, the outside may be a direction toward the outer surface relative to the center (e.g., center of gravity) of each camera actuator. In addition, the inside may refer to the opposite direction of the outside.

[0189] In addition, through this configuration, the camera module according to the embodiment can reduce the space restriction on the first camera actuator and the second camera actuator by changing the optical path. That is, in response to the change of the optical path, the camera module according to the embodiment can extend the optical path while minimizing the thickness of the camera module. In addition, it should be understood that the second camera actuator can provide a high magnification by controlling the focus in the extended optical path, etc.

[0190] In addition, the camera module according to the embodiment may implement OIS by controlling an optical path through the first camera actuator, thereby minimizing the occurrence of a decentering or tilting phenomenon and providing the best optical characteristics.

[0191] In addition, the second camera actuator 1200 may include an optical system and a lens driving unit. For example, at least one of a first lens assembly, a second lens assembly, and a third lens assembly may be provided in the second camera actuator 1200.

[0192] In addition, the second camera actuator 1200 may include a coil and a magnet, and perform a high-magnification zoom function and an auto focus function.

[0193] For example, the first lens assembly and the second lens assembly may be moving lenses that each move through the coil, the magnet, and the guide pin, and the third lens assembly may be a fixed lens, but the present disclosure is not limited thereto. For example, the third lens assembly may perform the function of a focuser through which light forms an image at a specific position, and the first lens assembly may perform the function of a converter for re-forming the image formed by the third lens assembly as a focuser at another position. At the same time, since the distance to the object or the image distance varies to a large extent, the first lens assembly may be in a state where the magnification changes greatly, and the first lens assembly as a converter may play an important role in the focal length or magnification change of the optical system. At the same time, the imaging point of the image formed by the first lens assembly as a converter may be slightly different depending on the position. Therefore, the second lens assembly may perform a position compensation function for the image formed by the converter. For example, the second lens assembly may perform the function of a compensator using the imaging point of the image formed by the first lens assembly as a converter, which is used to accurately form an image at the actual position of the image sensor. For example, the first lens assembly and the second lens assembly may be driven by the electromagnetic force generated by the interaction between the coil and the magnet. The above description can be applied to the lens assembly to be described below. In addition, the first lens assembly to the third lens assembly can be moved along the optical axis direction, that is, along the third direction. In addition, the first lens assembly to the third lens assembly can be moved independently or in relation to each other along the third direction. In the present disclosure, the first lens assembly and the second lens assembly can be moved along the optical axis direction. In addition, the third lens assembly can be positioned at the front end of the first lens assembly or at the rear end of the second lens assembly. In addition, the third lens assembly may not move along the optical axis direction. That is, the third lens assembly may be a fixed unit. In addition, the first lens assembly and the second lens assembly may be a mobile unit.

[0194] Meanwhile, when the OIS actuator and the AF / zoom actuator are provided according to an embodiment of the present disclosure, magnetic field interference with the AF / zoom magnet can be prevented when the OIS is driven. Since the first driving magnet of the first camera actuator 1100 is provided in a manner separated from the second camera actuator 1200, magnetic field interference between the first camera actuator 1100 and the second camera actuator 1200 can be prevented. In this specification, OIS may be used interchangeably with terms such as hand shake correction, optical image stabilizer, optical image correction, shake correction, and the like.

[0195] Figure 4 is a perspective view of a first camera actuator according to an embodiment, and Figure 5 is an exploded perspective view of a first camera actuator according to an embodiment.

[0196] Reference Figure 4 and Figure 5 , the first camera actuator 1100 according to the embodiment includes a first housing 1120, a mover 1130, a rotating unit 1140, a first driving unit 1150, a first member 1126, and a second member 1131a. In addition, the first camera actuator 1100 may further include a plate.

[0197] The mover 1130 may include a holder 1131 and an optical member 1132 seated on the holder 1131. In addition, the rotating unit 1140 may include an inclined guide portion 1141 and a second magnetic portion 1142 and a first magnetic portion 1143 having the same polarity or different polarities to press the inclined guide portion 1141. For example, the first magnetic portion 1143 and the second magnetic portion 1142 may have facing surfaces with the same polarity. In addition, the first driving unit 1150 includes a driving magnet 1151, a driving coil 1152, a Hall sensor portion 1153, a first plate portion 1154, and a yoke portion 1155. The first driving unit 1150 may correspond to an "OIS driving unit", a "front end driving unit", or the like.

[0198] First, the first camera actuator 1100 may include a shield case (not shown). The shield case (not shown) may be positioned at the outermost side of the first camera actuator 1100 to surround a rotating unit 1140 and a first driving unit 1150 to be described below.

[0199] The shielding cover (not shown) may block or reduce electromagnetic waves generated from the outside. That is, the shielding cover (not shown) may reduce the occurrence of a malfunction in the rotating unit 1140 or the first driving unit 1150.

[0200] The first housing 1120 may be positioned inside a shield case (not shown). When the shield case is not present, the first housing 1120 may be positioned at the outermost side of the first camera actuator.

[0201] In addition, the first housing 1120 may be positioned at the inner side of a first plate portion 1154 to be described below. The first housing 1120 may be fastened by being fitted into a shield case (not shown) or engaged with the shield case.

[0202] The first case 1120 may include a first case side portion 1121, a second case side portion 1122, a third case side portion 1123, and a fourth case side portion 1124. A detailed description thereof will be given below.

[0203] The first member 1126 may be disposed in the first housing 1120. The second member 1131a may pass through some areas of the first member 1126. The first member 1126 may be disposed in the housing. The first member 1126 may be a structure formed integrally with the first housing 1120 or separated therefrom.

[0204] In addition, the first camera actuator 1100 may further include a plate disposed at the outer side of the first member 1126. The plate may prevent foreign matter from passing through the first member 1126 and the like and flowing into the second member 1131a. In addition, the plate may be formed of a magnetic material. Therefore, since the plate has magnetism, magnetic force is not generated by the first magnetic portion 1143 and the second magnetic portion 1142 having polarity for pressing. That is, the generation of magnetic force that interferes with the driving (pressing) of the first magnetic portion 1143 and the second magnetic portion 1142 may be reduced.

[0205] When the plate is a magnetic portion, the plate may be referred to as a magnetic member, a magnetic portion, a covering plate, a metal member, a metal plate, or the like.

[0206] The mover 1130 includes a holder 1131 and an optical member 1132 seated on the holder 1131 .

[0207] The holder 1131 may be seated in the receiving portion 1125 of the first housing 1120. The holder 1131 may include first to fourth holder outer surfaces corresponding to the first housing side portion 1121, the second housing side portion 1122, the third housing side portion 1123, and the first member 1126, respectively. For example, the first to fourth holder outer surfaces may correspond to or face the inner surfaces of the first housing side portion 1121, the second housing side portion 1122, the third housing side portion 1123, and the first member 1126, respectively.

[0208] In addition, the retainer 1131 may include a second member 1131a disposed in the fourth seating groove. The second member 1131a may be coupled to the retainer 1131 by passing through the first member 1126. The second member 1131a and the retainer 1131 may be coupled by any of various coupling members or coupling members. A detailed description of this will be given below.

[0209] The optical member 1132 may be seated on the holder 1131. To this end, the holder 1131 may have a seating surface, and the seating surface may be formed by a receiving groove. In an embodiment, the optical member 1132 may be formed by a mirror or a prism. In the following, the optical member 1132 is illustrated as a prism, but may also be formed by a plurality of lenses as in the embodiment described above. Alternatively, the optical member 1132 may include a plurality of lenses and a prism or a mirror. In addition, the optical member 1132 may include a reflector disposed therein. However, the present disclosure is not limited thereto.

[0210] In addition, the optical member 1132 can reflect light reflected from the outside (e.g., an object) into the camera module. That is, the optical member 1132 can reduce the space restriction on the first camera actuator and the second camera actuator by changing the path of the reflected light. Therefore, it should be understood that the camera module can provide a wide range of magnifications by extending the optical path while minimizing the thickness of the camera module.

[0211] Additionally, the second member 1131a may be coupled to the retainer 1131. The second member 1131a may be disposed at the outer side of the retainer 1131 and the inner side of the housing. In addition, the second member 1131a may be seated in an additional groove positioned in the retainer 1131 in an area other than the fourth seating groove located on the outer surface of the fourth retainer. Therefore, the second member 1131a may be coupled to the retainer 1131, and at least a portion of the first member 1126 may be positioned between the second member 1131a and the retainer 1131. For example, at least a portion of the first member 1126 may be disposed in a space formed between the second member 1131a and the retainer 1131. In addition, as described above, the second member 1131a may pass through a hole (a first through hole and a second through hole to be described below) formed in the first member 1126.

[0212] In addition, the second member 1131a may have a structure separated from the holder 1131. With this configuration, the first camera actuator can be easily assembled, as will be described below. Alternatively, the second member 1131a may be formed integrally with the holder 1131, but will be described below as a separate structure.

[0213] The rotating unit 1140 includes an inclined guide portion 1141, and a second magnetic portion 1142 and a first magnetic portion 1143 having the same polarity to press the inclined guide portion 1141. The first and second magnetic portions may be disposed such that poles having the same polarity (eg, N pole) face each other.

[0214] The inclined guide portion 1141 may be coupled to the mover 1130 and the first housing 1120. Specifically, the inclined guide portion 1141 may be disposed between the holder 1131 and the first member 1126. Therefore, the inclined guide portion 1141 may be coupled to the mover 1130 and the first housing 1120 of the holder 1131. However, unlike the above description, in an embodiment, the inclined guide portion 1141 may be disposed between the second member 1126 and the holder 1131. Specifically, the inclined guide portion 1141 may be positioned between the first member 1126 and the fourth seating groove of the holder 1131. For example, at least a portion of the inclined guide portion 1141 may be positioned in the fourth seating groove.

[0215] The second member 1131a, the first member 1126, the inclined guide portion 1141 and the retainer 1131 can be arranged in sequence along the third direction (Z-axis direction). In addition, the second magnetic portion 1142 and the first magnetic portion 1143 can be seated in the first groove gr1 formed in the second member 1131a and the second groove gr2 formed in the first member 1126, respectively. In an embodiment, the first groove gr1 and the second groove gr2 may have different positions from the first groove and the second groove described above in other embodiments. However, the first groove gr1 is positioned in the second member 1131a and moves integrally with the retainer and the second member 1131a, and the second groove gr2 is positioned on the first member 1126 corresponding to the first groove gr1 and is connected to the first housing 1120. Therefore, these terms will be used in an interchangeable manner. In addition, the first groove and the second groove may be grooves as described above. Alternatively, the first groove and the second groove may also be replaced by the form of holes.

[0216] In addition, the tilt guide portion 1141 may be disposed adjacent to the optical axis. Therefore, the actuator according to the embodiment may easily change the optical path according to the tilt of the first axis and the second axis to be described below.

[0217] The inclined guide portion 1141 may include a first protrusion disposed to be spaced apart from each other in a first direction (X-axis direction) and a second protrusion disposed to be spaced apart from each other in a second direction (Y-axis direction). In addition, the first protrusion and the second protrusion may protrude in opposite directions. A detailed description of this will be given below.

[0218] In addition, as described above, the second magnetic portion 1142 may be positioned in the second member 1131 a . In addition, the first magnetic portion 1143 may be positioned in the first member 1126 .

[0219] The second magnetic portion 1142 and the first magnetic portion 1143 may have the same polarity. For example, the second magnetic portion 1142 may be a magnet having an N pole, and the first magnetic portion 1143 may be a magnet having an N pole. Alternatively, the second magnetic portion 1142 may be a magnet having an S pole, and the first magnetic portion 1143 may be a magnet having an S pole.

[0220] For example, a first pole surface of the first magnetic portion 1143 and a second pole surface of the second magnetic portion 1142 facing the first pole surface may have the same polarity.

[0221] Due to the above polarity, the second magnetic part 1142 and the first magnetic part 1143 can generate a repulsive force therebetween. With this configuration, the above repulsive force can be applied to the second member 1131a or the retainer 1131 coupled to the second magnetic part 1142 and the first member 1126 or the first shell 1120 coupled to the first magnetic part 1143. In this case, the repulsive force applied to the second member 1131a can be transmitted to the retainer 1131 coupled to the second member 1131a. Therefore, the inclined guide part 1141 disposed between the second member 1131a and the first member 1126 can be pressed by the repulsive force. In addition, the repulsive force can also be transmitted to the shell and the mover. Therefore, the shell and the mover can be pressed by the repulsive force. That is, the repulsive force can correspond to the holding force of the position between the shell and the mover. That is, the repulsive force can keep the position of the inclined guide part 1141 between the retainer 1131 and the first shell 1120 (or the first member 1126). With this configuration, the position between the mover 1130 and the first housing 1120 can be maintained even during the X-axis tilt or the Y-axis tilt. In addition, the tilt guide portion can be in close contact with the first member 1126 and the holder 1131 by the repulsive force between the first magnetic portion 1143 and the second magnetic portion 1142. That is, the repulsive force generated by the first magnetic portion 1143 and the second magnetic portion 1142 can be a holding force for the position between the holder 1131 and the first housing 1120.

[0222] The first driving unit 1150 includes a driving magnet 1151, a driving coil 1152, a Hall sensor portion 1153, a first plate portion 1154, and a yoke portion 1155. A description of this will be given below. In addition, the yoke portion 1155 may be referred to as a "first yoke portion" in the first camera actuator. In addition, the yoke portion in the second camera actuator may be referred to as a "second yoke portion"

[0223] Figure 6a is a perspective view of a first housing of a first camera actuator according to an embodiment, Figure 6bThe first housing of the first camera actuator is in contact with Figure 6a Stereoscopic images in different directions, and Figure 6c is a front view of a first housing of a first camera actuator according to an embodiment.

[0224] Reference Figures 6a to 6c , the first housing 1120 according to the embodiment may include the first housing side portion 1121 to the fourth housing side portion 1124. In addition, the first member 1126 may be integrally formed by being coupled to the first housing 1120. Therefore, the first member 1126 may be a component included in the first housing 1120. Alternatively, the first housing 1120 may include the first member 1126.

[0225] The first case side portion 1121 and the second case side portion 1122 may be disposed to face each other. In addition, the third case side portion 1123 and the fourth case side portion 1124 may be disposed to face each other.

[0226] In addition, the third case side portion 1123 and the fourth case side portion 1124 may be disposed between the first case side portion 1121 and the second case side portion 1122 .

[0227] The third housing side portion 1123 and the fourth housing side portion 1124 may be in contact with the first housing side portion 1121 and the second housing side portion 1122. In addition, the third housing side portion 1123 may be a lower surface of the first housing 1120. In addition, the fourth housing side portion 1124 may be an upper surface of the first housing 1120. In addition, the above-described contents may also be applied to the description of directions in the same manner.

[0228] In addition, the first case side portion 1121 may include a first case hole 1121a. A third coil to be described below may be positioned in the first case hole 1121a.

[0229] In addition, the second case side portion 1122 may include a second case hole 1122a. In addition, a fourth coil 1152b to be described below may be positioned in the second case hole 1122a.

[0230] In addition, the first case side portion 1121 and the second case side portion 1122 may be side surfaces of the first case 1120 .

[0231] The third coil and the fourth coil may be coupled to the first plate portion. In an embodiment, the third coil and the fourth coil may be electrically connected to the first plate portion so that current may flow through the first plate portion. The current is an element of the electromagnetic force capable of tilting the second camera actuator relative to the X-axis.

[0232] In addition, the third case side portion 1123 may include a third case hole 1123 a .

[0233] The fifth coil to be described below may be positioned in the third housing hole 1123a. In addition, the fifth coil 1152c may be electrically connected to the first plate portion in contact with the first housing 1120, and the fifth coil 1152c and the first plate portion may be coupled. Thus, the fifth coil may be electrically connected to the first plate portion to receive current from the first plate portion. Current is an element of the electromagnetic force capable of tilting the second camera actuator relative to the Y-axis.

[0234] The first member 1126 may be seated between the first to fourth case side portions 1121 to 1124. Therefore, the first member 1126 may be positioned on the third case side portion 1123. For example, the first member 1126 may be positioned at one side of the third case side portion 1123. The first member 1126 and the retainer may be positioned sequentially along the third direction.

[0235] The fourth case side portion 1124 may be disposed between the first case side portion 1121 and the second case side portion 1122 and may contact the first case side portion 1121 , the second case side portion 1122 , and the third case side portion 1123 .

[0236] In addition, the fourth housing side portion 1124 may include a fourth housing hole 1124a. The fourth housing hole 1124a may be positioned above the optical member. Therefore, light may be incident to the optical member after passing through the fourth housing hole 1124a.

[0237] In addition, the first case 1120 may include a receiving portion 1125 formed by the first to fourth case side portions 1121 to 1124. The first member 1126, the second member 1131a, and the mover 1130 may be positioned in the receiving portion 1125 as components.

[0238] In addition, the first housing 1120 may further include a fifth housing side portion facing the first member 1126. In addition, the fifth housing side portion may be disposed between the first housing side portion 1121 and the second housing side portion 1122 and may be in contact with the first housing side portion 1121, the second housing side portion 1122, and the third housing side portion 1123. In addition, the fifth housing side portion may include an opening area to provide a path along which light reflected from the optical member 1132 moves. In addition, the fifth housing side portion may include a protrusion, a groove, etc., to provide easy connection with other camera actuators adjacent to the fifth housing side portion. With this configuration, an optical path can be provided, and the change in the optical path can also be improved by increasing the connection strength between the fifth housing side portion in which an opening providing an optical path is formed and other components so as to suppress the movement of the opening caused by separation, etc.

[0239] In addition, as described above, the first member 1126 may be a component coupled to the first housing 1120 and included in the first housing 1120. That is, the first housing 1120 may include the first member 1126.

[0240] In addition, the first member 1126 may be disposed in the first housing 1120. Alternatively, the first member 1126 may be positioned in the first housing 1120.

[0241] In addition, the first member 1126 may be coupled to the first housing 1120. In an embodiment, the first member 1126 may be positioned between the first housing side portion 1121 and the second housing side portion 1122. In addition, the second member 1126 may be positioned between the third housing side portion 1123 and the fourth housing side portion 1124.

[0242] Additionally, the first member 1126 may be positioned on the third housing side portion 1123 and coupled to the first housing side portion to the third housing side portion.

[0243] In addition, the first stopper member 1121b may be positioned on the inner surface of the first housing side portion 1121. In addition, the second stopper member 1122b may be positioned on the inner surface of the second housing side portion 1122.

[0244] The first stop member 1121b and the second stop member 1122b can be positioned symmetrically about the first direction (X-axis direction). The first stop member 1121b and the second stop member 1122b can extend along the first direction (X-axis direction). With this configuration, even when the first member 1126 moves into the first housing 1120, the position of the first member 1126 can be maintained by the first stop member 1121b and the second stop member 1122b. In other words, the first stop member 1121b and the second stop member 1122b can maintain the position of the first member 1126 at one side of the first housing 1120.

[0245] In addition, the first stopper member 1121b and the second stopper member 1122b can fix the position of the first member 1126 to fix the position of the tilt guide portion between the first member 1126 and the mover, thereby eliminating factors causing errors such as vibration. Therefore, the first camera actuator according to the embodiment can accurately or precisely perform X-axis tilt and Y-axis tilt.

[0246] In addition, the separation distance L2 between the first stopper member 1121b and the second stopper member 1122b in the second direction (Y-axis direction) may be less than the maximum length L1 of the first member 1126 in the second direction (Y-axis direction). Therefore, the first member 1126 may be assembled or inserted into the side surface of the first housing 1120 and coupled to the first housing 1120. In addition, the retainer may be assembled to the first housing 1120 along the first direction. In addition, as described above, the first member 1126 may be coupled to the first housing 1120 along the side surface of the first housing 1120, i.e., along the optical axis direction. In addition, the second member may be assembled or inserted into the first housing 1120 along the optical axis direction. Therefore, the second member may pass through the first member 1126. Thereafter, the plate may also be disposed on the first member 1126.

[0247] In addition, the first member 1126 includes a second protrusion groove in which the second protrusion of the inclined guide portion is seated. The second protrusion groove PH2 can be positioned in the inner surface 1126S1 of the first member 1126. As will be described below, the contents of the first protrusion groove can be applied to the second protrusion groove PH2 in the same manner. For example, a plurality of second protrusion grooves PH2 can be formed, and the plurality of second protrusion grooves can have a structure having contact points that are the same as or different from the contact points of the second protrusion of the inclined guide portion. For example, the number of the second protrusion grooves PH2 is two, and the second protrusion groove PH2 can have a 4-point or 8-point contact structure. That is, the second protrusion groove PH2 can have a plurality of inclined surfaces. In addition, the second protrusion groove PH2 can also be a hemispherical groove.

[0248] Therefore, in the first member 1126, the protrusion (e.g., the second protrusion) of the tilt guide portion is disposed adjacent to the prism in the fourth seating groove, so that the protrusion as the tilt reference axis is disposed adjacent to the center of gravity of the mover 1130. Therefore, when the holder is tilted, the moment for moving the mover 1130 for tilting can be minimized. Therefore, the current consumption for driving the coil can be minimized, thereby reducing the power consumption of the camera actuator.

[0249] In addition, the second member 1126 may include through holes 1126a and 1126b. A plurality of through holes may be formed, and the plurality of through holes may include a first through hole 1126a and a second through hole 1126b.

[0250] The first extension and the second extension of the second member described below can pass through the first through hole 1126a and the second through hole 1126b, respectively. Therefore, the holding force between the second member and the first member can be generated by the repulsive force between the first magnetic part and the second magnetic part. That is, even when the mover is tilted, the position between the first shell and the mover can be maintained.

[0251] The second protrusion groove PH2 may be positioned between the first through hole 1126a and the second through hole 1126b. With this configuration, the coupling strength between the tilt guide portion 1141 and the first member 1126 may be increased, thereby preventing a decrease in tilt accuracy caused by movement of the tilt guide portion 1141 in the first housing.

[0252] In addition, the second groove gr2 can be positioned on the outer surface 1126S2 of the first member 1126. The first magnetic part can be seated in the second groove gr2. In addition, the outer surface 1126S2 of the first member 1126 can face the inner surface of the second member or the member base portion. In addition, the second magnetic part seated on the second member and the first magnetic part of the first member 1126 can face each other and generate the above-mentioned repulsive force. Therefore, since the first member 1126 presses the inclined guide part inward or toward the retainer by the repulsive force, the mover can be spaced apart from the third shell side part in the first shell by a predetermined distance even if no current is injected into the coil. That is, the holding force for maintaining the position between the mover, the shell and the inclined guide part can be generated by the first magnetic part and the second magnetic part.

[0253] In addition, when the second member 1126 is integrally formed with the first housing 1120, the coupling strength between the first member 1126 and the first housing 1120 can be improved, thereby improving the reliability of the camera actuator. In addition, when the first member 1126 is separately formed from the first housing 1120, the ease of assembly and manufacturing of the first member 1126 and the first housing 1120 can be improved.

[0254] In addition, in an embodiment, the first member 1126 may include the first through hole 1126a and the second through hole 1126b as described above. In addition, the first through hole 1126a and the second through hole 1126b may be arranged side by side along the second direction (Y-axis direction) and may overlap each other.

[0255] In addition, the first member 1126 may include an upper member UA positioned above the first through hole 1126a and the second through hole 1126b and a lower member BA positioned below the first through hole 1126a and the second through hole 1126b. Therefore, the first through hole 1126a and the second through hole 1126b may be positioned in the middle of the first member 1126. That is, the first member 1126 may include a connecting member MA positioned at the side portion of the first through hole 1126a and the second through hole 1126b. That is, the upper member UA and the lower member BA may be connected by the connecting member MA. In addition, a plurality of lower members BA may be formed to form the first through hole and the second through hole, and the plurality of lower members BA may be spaced apart from each other in the second direction (Y-axis direction).

[0256] Therefore, the first member 1126 may have an upper member UA, thereby improving the rigidity. For example, the rigidity of the first member 1126 may be increased compared to a case where the upper member UA does not exist. For example, in an embodiment, the unit of the rigidity may be N / μm. Therefore, the reliability of the first camera actuator according to an embodiment may be improved.

[0257] In addition, the first coupling groove 1126k may be positioned in the outer surface 1126S2 of the first member 1126. The first coupling groove 1126k may be positioned at an edge of the outer surface 1126S2 of the first member 1126. In particular, the first coupling groove 1126k may be positioned at ends (e.g., left and right sides) of the outer surface 1126S2 of the first member 1126 and positioned adjacent to the first housing side portion 1121.

[0258] The first coupling groove 1126k may be positioned to correspond to the second coupling groove 1121m of the first housing side portion 1121 and the second coupling groove 1122m of the second housing side portion 1122. In an embodiment, the first coupling groove 1126k may be positioned to face the second coupling groove 1121m of the first housing side portion 1121 and the second coupling groove 1122m of the second housing side portion 1122. The second coupling grooves 1121m and 1122m may be adjacent to the outer surface 1126S2 of the first member 1126 and positioned on the same side surface.

[0259] In an implementation, a plurality of first coupling grooves 1126k and a plurality of second coupling grooves 1121m and 1122m may be formed and may be symmetrically positioned in the first direction or the second direction.

[0260] The coupling member may be applied to the first coupling groove 1126k and the second coupling grooves 1121m and 1122m. That is, the coupling member may be applied between the first housing side portion (or the second housing side portion) and the first member 1126, thereby increasing the coupling strength between the first housing 1120 and the first member 1126. The coupling member may include epoxy resin or the like, but is not limited to the material.

[0261] In addition, the first member 1126 may further include a first protrusion and a second protrusion. The first protrusion may be in contact with the first shell side portion, and the second protrusion may be in contact with the second shell side portion. The first protrusion may extend from one end of the outer surface 1126S2 of the first member along a third direction (Z-axis direction). The second protrusion may extend from the other end of the outer surface 1126S2 of the first member along a third direction (Z-axis direction). In other words, the first protrusion and the second protrusion may extend toward the retainer.

[0262] The position of the first protrusion may be maintained by the first stopper member 1121b, and the position of the second protrusion may be maintained by the second stopper member 1122b. Therefore, the reliability of the camera actuator according to the embodiment may be improved.

[0263] Figure 7 is a perspective view of optical components of a first camera actuator according to an embodiment.

[0264] The optical member 1132 may be seated on the holder. The optical member 1132 may be a right angle prism as a reflector, but is not limited thereto.

[0265] In an embodiment, the optical member 1132 may have a protrusion (not shown) located on a portion of its outer surface. The optical member 1132 may be easily coupled to the holder through the protrusion (not shown). In addition, the holder may be coupled to the optical member 1132 through a groove or a protrusion.

[0266] In addition, the lower surface 1132b of the optical member 1132 may be seated on the seating surface of the holder. Therefore, the lower surface 1132b of the optical member 1132 may correspond to the seating surface of the holder. In addition, the lower surface 1132b of the optical member 1132 may be a reflective surface. In addition, the upper surface of the optical member 1132 may be an incident surface through which light is incident. In addition, the rear surface of the optical member 1132 may be an output surface through which light is output.

[0267] In an embodiment, the lower surface 1132b may be formed of an inclined surface in the same manner as the seating surface of the holder. Therefore, the optical member 1132 may be prevented from being separated from the holder when the prism moves according to the movement of the holder.

[0268] In addition, a groove is formed on the lower surface 1132b of the optical member 1132, and a bonding member is applied to the groove, and thus the optical member 1132 can be coupled to the holder. Alternatively, the holder can also be coupled to the optical member 1132 by applying a bonding member to the groove or protrusion of the holder.

[0269] In addition, as described above, the optical member 1132 may have a structure capable of reflecting light reflected from the outside (e.g., an object) into the camera module. As in an embodiment, the optical member 1132 may be formed by a single mirror. In addition, the optical member 1132 can overcome the spatial limitations of the first camera actuator and the second camera actuator by changing the path of the reflected light. Therefore, it should be understood that the camera module can provide a wide range of magnifications by extending the optical path while minimizing the thickness of the camera module. In addition, it should be understood that the camera module including the camera actuator according to the embodiment can provide a wide range of magnifications by extending the optical path while minimizing the thickness.

[0270] Figure 8a is a perspective view of a holder of a first camera actuator according to an embodiment, Figure 8b is a bottom view of a holder of a first camera actuator according to an embodiment, Figure 8c is a front view of a holder of a first camera actuator according to an embodiment, Figure 8d is a rear view of a second member of a first camera actuator according to an embodiment, and Figure 8e is a bottom view of a second member of a first camera actuator according to an embodiment.

[0271] Reference Figures 8a to 8e, the holder 1131 may include a seating surface 1131k on which the optical member 1132 is placed. The seating surface 1131k may be an inclined surface. In addition, the holder 1131 may include a stepped portion located on the seating surface 1131k. In addition, the stepped portion of the holder 1131 may be coupled to a protrusion (not shown) of the optical member 1132.

[0272] The holder 1131 may include a plurality of outer surfaces. For example, the holder 1131 may include a first holder outer surface 1131S1, a second holder outer surface 1131S2, a third holder outer surface 1131S3, and a fourth holder outer surface 1131S4.

[0273] The first holder outer surface 1131S1 may be positioned to face the second holder outer surface 1131S2. That is, the first holder outer surface 1131S1 may be disposed symmetrically with respect to the first direction (X-axis direction) based on the second holder outer surface 1131S2.

[0274] The first retainer outer surface 1131S1 can be positioned to correspond to the first housing side portion. That is, the first retainer outer surface 1131S1 can face the first housing side portion. In addition, the second retainer outer surface 1131S2 can be positioned to correspond to the second housing side portion. That is, the second retainer outer surface 1131S2 can be positioned to face the second housing side portion.

[0275] In addition, the first holder outer surface 1131S1 may include a first seating groove 1131S1a. In addition, the second holder outer surface 1131S2 may include a second seating groove 1131S2a. The first seating groove 1131S1a and the second seating groove 1131S2a may be symmetrically disposed with respect to the first direction (X-axis direction).

[0276] In addition, the first seating groove 1131S1a and the second seating groove 1131S2a can be arranged to overlap each other in the second direction (Y-axis direction). In addition, the third magnet 1151a can be arranged in the first seating groove 1131S1a, and the fourth magnet 1151b can be arranged in the second seating groove 1131S2a. The third magnet 1151a and the fourth magnet 1151b can also be arranged symmetrically about the first direction (X-axis direction). In this specification, it should be understood that the third magnet to the fifth magnet can be connected to the housing by a yoke or a combining member. The polarity of the third magnet and the polarity of the fourth magnet can be opposite to each other. For example, the N pole and the S pole of the third magnet can be arranged in sequence along the third direction, and the S pole and the N pole of the fourth magnet can be arranged in sequence along the third direction. As a modified example, by adjusting the current injection or current direction of the third coil and the fourth coil, the polarity of the third magnet and the polarity of the fourth magnet can be the same as each other.

[0277] As described above, due to the positions of the first and second seating grooves and the third and fourth magnets, the electromagnetic force generated by each magnet is coaxially provided on the first holder outer surface S1131S1 and the second holder outer surface 1131S2. For example, the area where the electromagnetic force is applied (e.g., the part where the electromagnetic force is the strongest) of the first holder outer surface S1131S1 and the area where the electromagnetic force is applied (e.g., the part where the electromagnetic force is the strongest) of the second holder outer surface S1131S2 can be positioned on an axis parallel to the second direction (Y-axis direction). Therefore, the X-axis tilt can be accurately performed.

[0278] The third magnet 1151a may be disposed in the first seating groove 1131S1a, and the fourth magnet 1151b may be disposed in the second seating groove 1131S2a.

[0279] The third retainer outer surface 1131S3 may be in contact with the first retainer outer surface 1131S1 and the second retainer outer surface 1131S2, and may be an outer surface extending from one side of each of the first retainer outer surface 1131S1 and the second retainer outer surface 1131S2 along the second direction (Y-axis direction). In addition, the third retainer outer surface 1131S3 may be positioned between the first retainer outer surface 1131S1 and the second retainer outer surface 1131S2. The third retainer outer surface 1131S3 may be the lower surface of the retainer 1131. That is, the third retainer outer surface 1131S3 may be positioned to face the third shell side portion.

[0280] In addition, the third holder outer surface 1131S3 may include a third seating groove 1131S3a. The fifth magnet 1151c may be disposed in the third seating groove 1131S3a. The third holder outer surface 1131S3 may be positioned to face the third housing side portion 1123.

[0281] In addition, at least a portion of the third housing hole 1123a may overlap with the third seating groove 1131S3a in the first direction (X-axis direction). Therefore, the fifth magnet 1151c in the third seating groove 1131S3a and the fifth coil 1152c in the third housing hole 1123a may be positioned to face each other. In addition, the fifth magnet 1151c and the fifth coil 1152c may generate an electromagnetic force so that the second camera actuator may be tilted relative to the Y-axis.

[0282] In addition, the X-axis tilt may be performed by a plurality of magnets (the third magnet 1151a and the fourth magnet 1151b), while the Y-axis tilt may be performed only by the fifth magnet 1151c.

[0283] In an implementation, the third seating groove 1131S3a may have a larger area than the first seating groove 1131S1a or the second seating groove 1131S1a. Through this configuration, the Y-axis tilt may be performed using current control similar to that of the X-axis tilt.

[0284] The fourth retainer outer surface 1131S4 may be in contact with the first retainer outer surface 1131S1 and the second retainer outer surface 1131S2, and may be an outer surface extending from one side of each of the first retainer outer surface 1131S1 and the second retainer outer surface 1131S2 along the first direction (X-axis direction). In addition, the fourth retainer outer surface 1131S4 may be positioned between the first retainer outer surface 1131S1 and the second retainer outer surface 1131S2. That is, the fourth retainer outer surface 1131S4 may be positioned to face the first member.

[0285] The fourth retainer outer surface 1131S4 may include a fourth seating groove 1131S4a. The inclined guide portion 1141 may be positioned in the fourth seating groove 1131S4a. In addition, the second member 1131a and the first member 1126 may be positioned in the fourth seating groove 1131S4a. In addition, the fourth outer seating groove 1131S4a may include a plurality of regions. The fourth seating groove 1131S4a may include a first region AR1, a second region AR2, and a third region AR3.

[0286] The second member 1131a may be positioned in the first area AR1. That is, the first area AR1 may overlap with the second member 1131a in the first direction (X-axis direction). In particular, the first area AR1 may be an area where the member base portion of the second member 1131a is positioned. In this case, the first area AR1 may be positioned on the fourth retainer outer surface 1131S4. That is, the first area AR1 may correspond to an area positioned above the fourth seating groove 1131S4a. In this case, the first area AR1 may not be an area in the fourth seating groove 1131S4a.

[0287] The first member 1126 may be positioned in the second area AR2. That is, the second area AR2 may overlap with the first member 1126 in the first direction (X-axis direction).

[0288] In addition, like the first area, the second area AR2 may be positioned on the fourth holder outer surface 1131S4. That is, the second area AR2 may correspond to an area positioned above the fourth seating groove 1131S4a.

[0289] The inclined guide portion may be positioned in the third area AR3. Specifically, the base of the inclined guide portion may be positioned in the third area AR3. That is, the third area AR3 may overlap with the inclined guide portion (eg, the base) in the first direction (X-axis direction).

[0290] In addition, the second area AR2 may be positioned between the first area AR1 and the third area AR3.

[0291] In addition, the second member may be disposed in the first area AR1, and the second member 1131a may include a first groove gr1. In an embodiment, the first member 1131a may include a first groove gr1 formed on the inner surface 1131aas. In addition, the second magnetic portion may be disposed in the first groove gr1 as described above.

[0292] In addition, as described above, the first member may be disposed in the second area AR2. The first groove gr1 may be positioned to face the second groove gr2. For example, at least a portion of the first groove gr1 may overlap with the second groove gr2 in the third direction (Z-axis direction).

[0293] In addition, the repulsive force generated by the second magnetic part may be transferred through the second member to the fourth seating groove 1131S4a of the holder 1131. Therefore, the holder may apply a force to the inclined guide portion in the same direction as the repulsive force generated by the second magnetic part.

[0294] The first member may include a second groove gr2 facing the first groove gr1 formed in the outer surface thereof. In addition, the first member may include a second protrusion groove formed on the inner surface thereof as described above. In addition, the second protrusion may be seated in the second protrusion groove.

[0295] In addition, similar to the second magnetic part, the repulsive force generated by the first magnetic part and the second magnetic part may be applied to the first member. Therefore, the first member and the second member may press the inclined guide part provided between the first member and the holder 1131 by the repulsive force.

[0296] The inclined guide portion 1141 may be provided in the third area AR3.

[0297] In addition, the first protrusion groove PH1 can be positioned in the fourth seating groove 1131S4a. In addition, the first protrusion of the inclined guide portion 1141 can be accommodated in the first protrusion groove PH1. Therefore, the first protrusion PR1 can be in contact with the first protrusion groove. The maximum diameter of the first protrusion groove PH1 can correspond to the maximum diameter of the first protrusion PR1. This can be applied to the second protrusion groove and the second protrusion PR2 in the same manner. That is, the maximum diameter of the second protrusion groove can correspond to the maximum diameter of the second protrusion PR2. Therefore, the second protrusion can be in contact with the second protrusion groove. With this configuration, the first axis tilting can be easily performed based on the first protrusion, the second axis tilting can be easily performed based on the second protrusion, and the radius of the tilting can be improved.

[0298] In addition, in an embodiment, a plurality of first protrusion grooves PH1 may be formed. For example, any one of the first protrusion groove PH1 and the second protrusion groove PH2 may include a 1-1 protrusion groove PH1a and a 1-2 protrusion groove PH1b. Hereinafter, the first protrusion groove PH1 including a 1-1 protrusion groove PH1a and a 1-2 protrusion groove PH1b will be described. In addition, the following description may also be applied to the second protrusion groove PH2 in the same manner. For example, the second protrusion groove PH2 may include a 2-1 protrusion groove and a 2-2 protrusion groove, wherein the description of the 1-1 protrusion groove may be applied to the 2-1 protrusion groove, and the description of the 1-2 protrusion groove may be applied to the 2-2 protrusion groove.

[0299] The 1-1 protrusion groove PH1a and the 1-2 protrusion groove PH1b may be disposed side by side in the first direction (X-axis direction). The 1-1 protrusion groove PH1a and the 1-2 protrusion groove PH1b may have the same maximum area.

[0300] The plurality of first protrusion grooves PH1 may have different numbers of inclined surfaces. For example, the first protrusion groove PH1 may include a groove lower surface and an inclined surface. In this case, the plurality of protrusion grooves may have different numbers of inclined surfaces. In addition, the area of ​​the lower surface of the protrusion groove may also be different.

[0301] For example, the 1-1 protrusion groove PH1a may include a first groove lower surface LS1 and a first inclined surface CS1. The 1-2 protrusion groove PH1b may include a second groove lower surface LS2 and a second inclined surface CS2.

[0302] In this case, the first groove lower surface LS1 and the second groove lower surface LS2 may have different areas. The area of ​​the first groove lower surface LS1 may be smaller than the area of ​​the second groove lower surface LS2.

[0303] In addition, the number of the first inclined surfaces CS1 contacting the first groove lower surface LS1 may be different from the number of the second inclined surfaces CS2. For example, the number of the first inclined surfaces CS1 may be greater than the number of the second inclined surfaces CS2.

[0304] With this configuration, it is possible to easily compensate for the assembly tolerance of the first protrusion seated in the first protrusion groove PH1. For example, since the number of the first inclined surfaces CS1 is greater than the number of the second inclined surfaces CS2, the first protrusion can contact more inclined surfaces, thereby more accurately maintaining the position of the first protrusion in the 1-1 protrusion groove PH1a.

[0305] Different from this, in the 1-2 protrusion groove PH1b, the number of inclined surfaces contacting the first protrusion may be smaller than that of the 1-1 protrusion groove PH1a, thereby easily adjusting the position of the first protrusion.

[0306] In an embodiment, the second inclined surfaces CS2 may be arranged to be spaced apart from each other in the second direction (Y-axis direction). In addition, the second groove lower surface LS2 may extend in the first direction (X-axis direction), so that the first protrusion may be easily moved in the first direction (X-axis direction) in a state of contact with the second inclined surface CS2. That is, the position of the first protrusion in the 1-2 protrusion groove PH1b may be easily adjusted.

[0307] In addition, in this embodiment, the first area AR1, the second area AR2, and the third area AR3 may have different heights in the first direction (X-axis direction). In an embodiment, the first area AR1 may have a greater height in the first direction (X-axis direction) than the second area AR2 and the third area AR3. Therefore, a step-shaped portion may be positioned between the first area AR1 and the second area AR2.

[0308] In addition, the second member 1131a may include a first groove gr1. That is, the first groove gr1 may be positioned in the inner surface of the member base portion 1131aa. In addition, the second magnetic portion described above may be seated in the first groove gr1. In addition, a plurality of first grooves gr1 may be formed according to the number of second magnetic portions. That is, the number of first grooves gr1 may correspond to the number of second magnetic portions.

[0309] In addition, the second member 1131a may include a member base portion 1131aa, a first extension portion 1131ab, and a second extension portion 1131ac.

[0310] The member base portion 1131aa may be positioned at the outermost portion of the first camera actuator. The member base portion 1131aa may be positioned at the outer side of the first member. That is, the first member may be positioned between the member base portion 1131aa and the tilt guide portion.

[0311] The first extension portion 1131ab can extend from the edge of the component base portion 1131aa along the third direction (Z-axis direction). That is, the first extension portion 1131ab can extend from the component base portion 1131aa toward the retainer 1131. This also applies to the second extension portion 1131ac in the same manner. In addition, the second extension portion 1131ac can extend from the edge of the component base portion 1131aa along the third direction (Z-axis direction). In an embodiment, the first extension portion 1131ab and the second extension portion 1131ac can be positioned at the edge of the component base portion 1131aa along the second direction (Y-axis direction). In addition, the first extension portion 1131ab and the second extension portion 1131ac can be arranged between the upper member and the lower member.

[0312] Therefore, the second member 1131a may have a groove formed by the first extension 1131ab and the second extension 1131ac. That is, the groove may be positioned between the first extension 1131ab and the second extension 1131ac. Therefore, the first extension 1131ab and the second extension 1131ac may be connected only by the member base portion 1131aa. With this configuration, the second member 1131a may continuously receive the repulsive force generated by the second magnetic portion seated at the center of the member base portion 1131aa, particularly seated in the first groove gr1.

[0313] In addition, since the second member 1131 a is coupled to the holder to move during the X-axis tilt and the Y-axis tilt, the rigidity of the second member 1131 a may be greater than the rigidity of the first member.

[0314] In addition, as described above, the first member according to the embodiment may have an upper member and a lower member, thereby increasing the rigidity. With this configuration, the difference in rigidity between the second member and the first member may be reduced. Therefore, when the second member 1131a and the retainer 1131 coupled to the second member 1131a are tilted relative to the X-axis or the Y-axis, the distance between the second member 1131a and the first member adjacent to the second member 1131a may be a smaller distance, and the second member 1131a may be in contact with the first member. Therefore, since the first member has improved rigidity as described above, the operation of the stopper may be easily performed. That is, the reliability of the camera actuator may be improved.

[0315] In addition, since the difference in rigidity between the first member and the second member is reduced, damage caused by contact during tilting can be minimized. That is, the reliability of the camera actuator can be improved.

[0316] In addition, the first extension portion 1131ab can be spaced apart from the second extension portion 1131ac in the second direction (Y-axis direction) to form a separation space. The first member and the inclined guide portion can be seated in the separation space. In addition, the second magnetic portion and the first magnetic portion can be positioned in the separation space.

[0317] In addition, the first extension portion 1131ab and the second extension portion 1131ac may have the same length in the third direction (Z-axis direction). Therefore, the coupling strength, weight, etc. may be formed in a balanced manner so that the tilting of the holder may be accurately performed without tilting to one side.

[0318] In addition, the first extension 1131ab and the second extension 1131ac can be connected to the retainer. In the present specification, it should be understood that the connection can be performed by a coupling member other than the protrusion and groove structure described above. In an embodiment, the first extension 1131ab and the second extension 1131ac may include a third coupling groove 1131k formed in a third direction (Z-axis direction). In addition, a coupling protrusion 1131m may be positioned in the area where the first extension 1131ab and the second extension 1131ac in the fourth seating groove 1131S4a overlap in the third direction (Z-axis direction). The coupling protrusion 1131m may be positioned to correspond to the third coupling groove 1131k.

[0319] For example, a bonding member, such as epoxy resin, may be applied to the third coupling groove 1131k. In addition, the coupling protrusion 1131m may be inserted into the third coupling groove 1131k of the first extension 1131ab and the second extension 1131ac. With this configuration, the second member 1131a and the retainer 1131 may be coupled. In addition, the repulsive force applied to the second member 1131a may be transmitted to the retainer 1131 through this coupling.

[0320] However, as mentioned above, it will be appreciated that the positions of the protrusion and groove structures may also vary relative to each other.

[0321] Figure 9a is a perspective view of a tilt guide unit of a first camera actuator according to an embodiment, Figure 9b The first camera actuator is a tilt guide unit in contact with Figure 9a Stereoscopic images in different directions, and Fig.9c It is along Figure 9a View of the tilt guiding unit of the first camera actuator along line FF'.

[0322] The inclined guide portion 1141 according to the embodiment may include a base BS, a first protrusion PR1 protruding from a first surface 1141a of the base BS, and a second protrusion PR2 protruding from a second surface 1141b of the base BS. In addition, the first protrusion and the second protrusion may have opposite surfaces according to the structure, but will be described below based on the drawings. In addition, it should be understood that the first protrusion PR1 and the second protrusion PR2 may be formed integrally with the base BS, and as illustrated in the drawings, the first protrusion PR1 and the second protrusion PR2 may have a spherical shape similar to a spherical piece. In addition, the first protrusion PR1 and the second protrusion PR2 may not be protrusions or protrusion shapes, but may be spherical pieces.

[0323] First, the base BS may include a first surface 1141a and a second surface 1141b opposite to the first surface 1141a. That is, the first surface 1141a may be spaced apart from the second surface 1141b in a third direction (Z-axis direction), and the first surface 1141a and the second surface 1141b may be outer surfaces opposite to or facing each other in the inclined guide portion 1141.

[0324] The inclined guide portion 1141 may include a first protrusion PR1 extending to one side on the first surface 1141a. According to an embodiment, the first protrusion PR1 may protrude from the first surface 1141a toward the holder. A plurality of first protrusions PR1 may be formed, and the plurality of first protrusions PR1 may include a 1-1 protrusion PR1a and a 1-2 protrusion PR1b.

[0325] The 1-1 protrusion PR1a and the 1-2 protrusion PR1b may be positioned side by side in the first direction (X-axis direction). That is, the 1-1 protrusion PR1a and the 1-2 protrusion PR1b may overlap in the first direction (X-axis direction). In addition, in an embodiment, the 1-1 protrusion PR1a and the 1-2 protrusion PR1b may be bisected by a virtual line extending in the first direction (X-axis direction).

[0326] In addition, each of the 1-1 protrusion PR1a and the 1-2 protrusion PR1b may have a curvature and have, for example, a hemispherical shape. In addition, the 1-1 protrusion PR1a and the 1-2 protrusion PR1b may contact the first groove of the case at a point farthest from the first surface 1141a of the base BS.

[0327] In addition, an alignment groove 1141aa may be positioned in the first surface 1141a. The alignment groove 1141aa may be provided at one side of the first surface 1141a to provide an assembly position or assembly direction of the inclined guide portion 1141 during an assembly process.

[0328] In addition, the inclined guide portion 1141 may include a second protrusion PR2 extending to one side on the second surface 1141b. According to an embodiment, the second protrusion PR2 may protrude from the second surface 1141b toward the housing. In addition, in an embodiment, a plurality of second protrusions PR2 may be formed, and the plurality of second protrusions PR2 may include a 2-1 protrusion PR2a and a 2-2 protrusion PR2b.

[0329] The 2-1 protrusion PR2a and the 2-2 protrusion PR2b may be positioned side by side in the second direction (Y-axis direction). That is, the 2-1 protrusion PR2a and the 2-2 protrusion PR2b may overlap in the second direction (Y-axis direction). In addition, in an embodiment, the 2-1 protrusion PR2a and the 2-2 protrusion PR2b may be bisected by a virtual line extending in the second direction (Y-axis direction).

[0330] Each of the 2-1 protrusion PR2a and the 2-2 protrusion PR2b may have a curvature and have, for example, a hemispherical shape. In addition, the 2-1 protrusion PR2a and the 2-2 protrusion PR2b may contact the second member 1131a at a point spaced apart from the second surface 1141b of the base BS.

[0331] The 1-1 protrusion PR1a and the 1-2 protrusion PR1b can be positioned in the area between the 2-1 protrusion PR2a and the 2-2 protrusion PR2b in the second direction. According to an embodiment, the 1-1 protrusion PR1a and the 1-2 protrusion PR1b can be positioned at the center of the separation space between the 2-1 protrusion PR2a and the 2-2 protrusion PR2b in the second direction. With this configuration, the actuator according to the embodiment can have an angle of X-axis inclination in the same range relative to the X-axis. That is, the tilting guide portion 1141 and the retainer can similarly provide the following range (e.g., positive / negative range): within this range, the X-axis inclination can be performed relative to the X-axis based on the 1-1 protrusion PR1a and the 1-2 protrusion PR1b.

[0332] In addition, the 2-1 protrusion PR2a and the 2-2 protrusion PR2b can be positioned in the area between the 1-1 protrusion PR1a and the 1-2 protrusion PR1b in the first direction. According to an embodiment, the 2-1 protrusion PR2a and the 2-2 protrusion PR2b can be positioned at the center of the separation space between the 1-1 protrusion PR1a and the 1-2 protrusion PR1b in the first direction. With this configuration, the actuator according to the embodiment can have an angle of Y-axis inclination in the same range relative to the Y-axis. That is, the tilting guide portion 1141 and the retainer can similarly provide the following range (e.g., positive / negative range): within this range, the Y-axis inclination can be performed relative to the Y-axis based on the 2-1 protrusion PR2a and the 2-2 protrusion PR2b.

[0333] Specifically, the first surface 1141a may include a first outer line M1, a second outer line M2, a third outer line M3, and a fourth outer line M4. The first outer line M1 and the second outer line M2 may face each other, and the third outer line M3 and the fourth outer line M4 may face each other. In addition, the third outer line M3 and the fourth outer line M4 may be positioned between the first outer line M1 and the second outer line M2. In addition, the first outer line M1 and the second outer line M2 may be perpendicular to the first direction (X-axis direction), but the third outer line M3 and the fourth outer line M4 may be parallel to the first direction (X-axis direction).

[0334] In this case, the first protrusion PR1 can be positioned on the first virtual line VL1. Here, the first virtual line VL1 is a line that bisects the first outer line M1 and the second outer line M2. Alternatively, the first virtual line VL1 and the third virtual line VL1' are lines that bisect the base BS in the second direction (Y-axis direction). Therefore, the tilting guide portion 1141 can easily perform X-axis tilting through the first protrusion PR1. In addition, since the tilting guide portion 1141 performs X-axis tilting relative to the first virtual line VL1, the rotational force can be uniformly applied to the tilting guide portion 1141. Therefore, the X-axis tilting can be accurately performed and the reliability of the device can be improved.

[0335] In addition, the 1-1 protrusion PR1a and the 1-2 protrusion PR1b can be symmetrically arranged relative to the first virtual line VL1 and the second virtual line VL2. Alternatively, the 1-1 protrusion PR1a and the 1-2 protrusion PR1b can be symmetrically positioned based on the first center point. With this configuration, when performing X-axis tilting, the supporting force supported by the first protrusion PR1 can be applied to the upper side and the lower side in the same manner relative to the second virtual line VL2. Therefore, the reliability of the tilting guide part can be improved. Here, the second virtual line VL2 is a line that bisects the third outer line M3 and the fourth outer line M4. Alternatively, the second virtual line VL2 and the fourth virtual line VL2' are lines that bisect the base BS in the first direction (X-axis direction).

[0336] In addition, the first center point may be an intersection point of the first virtual line VL1 and the second virtual line VL2 Alternatively, the first center point may also be a point corresponding to the center of gravity according to the shape of the inclination guide portion 1141 .

[0337] In addition, the second surface 1141b may include a fifth outer line M1', a sixth outer line M2', a seventh outer line M3', and an eighth outer line M4'. The fifth outer line M1' and the sixth outer line M2' may face each other, and the seventh outer line M3' and the eighth outer line M4' may face each other. In addition, the seventh outer line M3' and the eighth outer line M4' may be positioned between the fifth outer line M1' and the sixth outer line M2'. In addition, the fifth outer line M1' and the sixth outer line M2' may be perpendicular to the first direction (X-axis direction), but the seventh outer line M3' and the eighth outer line M4' may be parallel to the first direction (X-axis direction).

[0338] In addition, since the tilt guide portion 1141 performs Y-axis tilt with respect to the fourth virtual line VL2', the rotation force may be uniformly applied to the tilt guide portion 1141. Therefore, the Y-axis tilt may be accurately performed and the reliability of the device may be improved.

[0339] In addition, the 2-1 protrusion PR2a and the 2-2 protrusion PR2b can be symmetrically arranged on the fourth virtual line VL2' relative to the third virtual line VL1'. Alternatively, the 2-1 protrusion PR2a and the 2-2 protrusion PR2b can be symmetrically positioned based on the second center point. With this configuration, when performing Y-axis tilting, the supporting force supported by the second protrusion PR2 can be applied to the upper side and the lower side in the same manner relative to the fourth virtual line VL2'. Therefore, the reliability of the tilting guide part can be improved. Here, the third virtual line VL1' is a line that bisects the fifth outer line M1' and the sixth outer line M2'. In addition, the second center point can be the intersection of the third virtual line VL1' and the fourth virtual line VL2'. Alternatively, depending on the shape of the tilting guide part 1141, the second center point can also be a point corresponding to the center of gravity.

[0340] In addition, the distance DR2 between the 1-1 protrusion PR1a and the 1-2 protrusion PR1b in the first direction (X-axis direction) may be greater than the length of the second protrusion PR2 in the first direction (X-axis direction). Therefore, when X-axis tilting is performed based on the 1-1 protrusion PR1a and the 1-2 protrusion PR1b, the resistance caused by the second protrusion PR2 may be minimized.

[0341] Correspondingly, the distance ML2 between the 2-1 protrusion PR2a and the 2-2 protrusion PR2b in the second direction (Y-axis direction) may be greater than the length of the first protrusion PR1 in the second direction (Y-axis direction). Therefore, when Y-axis tilting is performed based on the 2-1 protrusion PR2a and the 2-2 protrusion PR2b, the resistance caused by the first protrusion PR1 may be minimized.

[0342] Fig.10 is a view illustrating a first driving unit of a first camera actuator according to an embodiment.

[0343] Reference Fig.10 , the first driving unit 1150 includes a driving magnet 1151 , a driving coil 1152 , a hall sensor portion 1153 , a first plate portion 1154 , and a yoke portion 1155 .

[0344] In addition, as described above, the driving magnet 1151 may include third, fourth, and fifth magnets 1151a, 1151b, and 1151c providing driving force generated by electromagnetic force. The third, fourth, and fifth magnets 1151a, 1151b, and 1151c may each be positioned on an outer surface of the holder 1131.

[0345] In addition, the driving coil 1152 may include a plurality of coils. In an embodiment, the driving coil 1152 may include a third coil 1152a, a fourth coil 1152b, and a fifth coil 1152c.

[0346] The third coil 1152a can be positioned to face the third magnet 1151a. Therefore, as described above, the third coil 1152a can be positioned in the first housing hole 1121a of the first housing side portion 1121. In addition, the fourth coil 1152b can be positioned to face the fourth magnet 1151b. Therefore, as described above, the fourth coil 1152b can be positioned in the second housing hole 1122a of the second housing side portion 1122.

[0347] According to an embodiment, the second camera actuator can control the mover 1130 to rotate along the first axis (X-axis direction) or the second axis (Y-axis direction) by driving the electromagnetic force between the magnet 1151 and the coil 1152, thereby minimizing the occurrence of eccentricity or tilt when implementing OIS and providing optimal optical characteristics.

[0348] In addition, according to an embodiment, an ultra-thin and ultra-small camera actuator and a camera module including the same may be provided by implementing OIS with the aid of the inclined guide portion 1141 of the rotating unit 1140 disposed between the first housing 1120 and the mover 1130 to solve the size limitation of the actuator.

[0349] The first plate portion 1154 may include a first plate side portion 1154a, a second plate side portion 1154b, and a third plate side portion 1154c.

[0350] The first plate side portion 1154a and the second plate side portion 1154b may be disposed to face each other. In addition, the third plate side portion 1154c may be positioned between the first plate side portion 1154a and the second plate side portion 1154b.

[0351] In addition, the first plate side portion 1154a can be positioned between the first shell side portion and the shielding cover, and the second plate side portion 1154b can be positioned between the second shell side portion and the shielding cover. In addition, the third plate side portion 1154c can be positioned between the third shell side portion and the shielding cover, and can be the lower surface of the first plate portion 1154.

[0352] The first board side portion 1154a may be coupled to and electrically connected to the third coil 1152a. In addition, the first board side portion 1154a may be coupled to and electrically connected to the first hall sensor 1153a.

[0353] The second plate side portion 1154b may be coupled to and electrically connected to the fourth coil 1152b. It should be understood that the second plate side portion 1154b may also be coupled to and electrically connected to the first Hall sensor.

[0354] The third plate side portion 1154c may be coupled to and electrically connected to the fifth coil 1152c. In addition, the third plate side portion 1154c may be coupled to and electrically connected to the second hall sensor 1153b.

[0355] The yoke portion 1155 may include a third yoke 1155a, a fourth yoke 1155b, and a fifth yoke 1155c. The third yoke 1155a may be positioned in the first seating groove and coupled to the third magnet 1151a. In addition, the fourth yoke 1155b may be positioned in the second seating groove and coupled to the fourth magnet 1151b. In addition, the fifth yoke 1155c may be positioned in the third seating groove and coupled to the fifth magnet 1151c. The third yokes 1155a to the fifth yokes 1155c allow the third magnets 1151a to the fifth magnets 1151c to be easily seated in the first seating groove to the third seating groove and coupled to the housing.

[0356] Fig.11a is a perspective view of a first camera actuator according to an embodiment, Fig.11b It is along Fig.11a a view of the first camera actuator of line PP', and Fig.11c It is along Fig.11a View of the first camera actuator along line QQ'.

[0357] Reference Figures 11a to 11c , the third coil 1152a can be positioned on the first housing side portion 1121, and the third magnet 1151a can be positioned on the first holder outer surface 1131S1 of the holder 1131. Therefore, the third coil 1152a and the third magnet 1151a can be positioned to face each other. At least a portion of the third magnet 1151a can overlap with the third coil 1152a in the second direction (Y-axis direction).

[0358] In addition, the fourth coil 1152b can be positioned on the second housing side portion 1122, and the fourth magnet 1151b can be positioned on the second holder outer surface 1131S2 of the holder 1131. Therefore, the fourth coil 1152b and the fourth magnet 1151b can be positioned to face each other. At least a portion of the fourth magnet 1151b can overlap with the fourth coil 1152b in the second direction (Y-axis direction).

[0359] In addition, the third coil 1152a and the fourth coil 1152b may overlap in the second direction (Y-axis direction), and the third magnet 1151a and the fourth magnet 1151b may overlap in the second direction (Y-axis direction).

[0360] With this configuration, the electromagnetic force applied to the outer surfaces of the holder (the first holder outer surface and the second holder outer surface) can be positioned on an axis parallel to the second direction (Y-axis direction), and thus X-axis tilting can be performed accurately and precisely.

[0361] In addition, the second protrusions PR2a and PR2b of the tilt guide portion 1141 may contact the first member 1126 of the first housing 1120. The second protrusion PR2 may be seated in a second protrusion groove PH2 formed in one side surface of the first member 1126. In addition, when performing X-axis tilting, the second protrusions PR2a and PR2b may be a reference axis (or rotation axis) of the tilt. Therefore, the tilt guide portion 1141 and the mover 1130 may move in the second direction.

[0362] In addition, as described above, the first hall sensor 1153a may be positioned outside to be electrically connected and coupled to the first plate portion 1154. However, the present disclosure is not limited to such a position.

[0363] In addition, the fifth coil 1152c can be positioned on the third housing side portion 1123, and the fifth magnet 1151c can be positioned on the third holder outer surface 1131S3 of the holder 1131. The fifth coil 1152c and the fifth magnet 1151c can at least partially overlap in the first direction (X-axis direction). Therefore, the strength of the electromagnetic force between the fifth coil 1151c and the fifth magnet 1151c can be easily controlled.

[0364] As described above, the inclined guide portion 1141 may be positioned on the fourth holder outer surface 1131S4 of the holder 1131. In addition, the inclined guide portion 1141 may be seated in the fourth seating groove 1131S4a of the fourth holder outer surface. As described above, the fourth seating groove 1131S4a may include the first area AR1, the second area AR2, and the third area AR3.

[0365] The second member 1131a may be disposed in the first area AR1, and the second member 1131a may include a first groove gr1 formed on an inner surface of the second member 1131a. In addition, as described above, the second magnetic portion 1142 may be disposed in the first groove gr1, and the repulsive force RF2 generated by the second magnetic portion 1142 may be transmitted to the fourth seating groove 1131S4a of the retainer 1131 through the second member 1131a (RF2'). Therefore, the retainer 1131 may apply a force to the inclined guide portion 1141 in the same direction as the repulsive force RF2 generated by the second magnetic portion 1142.

[0366] The first member 1126 may be disposed in the second area AR2. The first member 1126 may include a second groove gr2 facing the first groove gr1. In addition, the first member 1126 may include a second protrusion groove PH2 disposed on a surface corresponding to the second groove gr2. In addition, the repulsive force RF1 generated by the first magnetic portion 1143 may be applied to the first member 1126. Therefore, the first member 1126 and the second member 1131a may press the inclined guide portion 1141 disposed between the first member 1126 and the retainer 1131 by the repulsive forces RF1 and RF2' generated. Therefore, even after the retainer is tilted relative to the X-axis or Y-axis by the current applied to the third coil and the fourth coil or the fifth coil 1152c, the connection between the retainer 1131, the first shell 1120 and the inclined guide portion 1141 can be maintained.

[0367] The inclined guide portion 1141 may be disposed in the third area AR3. As described above, the inclined guide portion 1141 may include a first protrusion PR1 and a second protrusion PR2. In this case, the first protrusion PR1 and the second protrusion PR2 may also be disposed on the second surface 1141b and the first surface 1141a of the base BS, respectively. As described above, even in another embodiment to be described below, the first protrusion PR1 and the second protrusion PR2 may be positioned differently on the facing surface of the base BS.

[0368] The first protrusion groove PH1 can be positioned in the fourth seating groove 1131S4a. In addition, the first protrusion PR1 of the inclined guide portion 1141 can be accommodated in the first protrusion groove PH1. Therefore, the first protrusion PR1 can be in contact with the first protrusion groove PH1. The maximum diameter of the first protrusion groove PH1 can correspond to the maximum diameter of the first protrusion PR1. This can be applied to the second protrusion groove PH2 and the second protrusion PR2 in the same manner. That is, the maximum diameter of the second protrusion groove PH2 can correspond to the maximum diameter of the second protrusion PR2. In addition, the second protrusion PR2 can be in contact with the second protrusion groove PH2. With this configuration, the first axis inclination can be easily performed based on the first protrusion PR1, the second axis inclination can be easily performed based on the second protrusion PR2, and the radius of inclination can be improved.

[0369] In addition, the tilt guide portion 1141 can be arranged side by side with the second member 1131a and the first member 1126 in the third direction (Z-axis direction), and thus the tilt guide portion 1141 can overlap with the optical member 1132 in the first direction (X-axis direction). More specifically, in an embodiment, the first protrusion PR1 can overlap with the optical member 1132 in the first direction (X-axis direction). In addition, at least a portion of the first protrusion PR1 can overlap with the fifth coil 1152c or the fifth magnet 1151c in the first direction (X-axis direction). That is, in the camera actuator according to the embodiment, each protrusion as the central axis of the tilt can be positioned adjacent to the center of gravity of the mover 1130. Therefore, the tilt guide portion can be positioned adjacent to the center of gravity of the holder. Therefore, the camera actuator according to the embodiment can minimize the moment value for tilting the holder, and also minimize the consumption of the current applied to the coil, etc. to tilt the holder, thereby improving power consumption and device reliability.

[0370] In addition, the second magnetic portion 1142 and the first magnetic portion 1143 may not overlap with the fifth coil 1152c or the optical member 1132 in the first direction (X-axis direction). That is, in an embodiment, the second magnetic portion 1142 and the first magnetic portion 1143 may be arranged to be spaced apart from the fifth coil 1152c or the optical member 1132 in the third direction (Z-axis direction). Therefore, the magnetic force transmitted from the second magnetic portion 1142 and the first magnetic portion 1143 to the fifth coil 1152c can be minimized. Therefore, the camera actuator according to the embodiment can easily perform vertical drive (Y-axis tilt) and can minimize power consumption.

[0371] In addition, as described above, the second Hall sensor 1153b positioned at the inner side of the fifth coil 1153c can detect changes in magnetic flux and thus perform position sensing between the fifth magnet 1151c and the second Hall sensor 1153b. In this case, the offset voltage of the second Hall sensor 1153b can be changed according to the influence of the magnetic field generated by the second magnetic portion 1142 and the first magnetic portion 1143.

[0372] The first camera actuator according to the embodiment includes the second member 1131a, the second magnetic portion 1142, the first magnetic portion 1143, the first member 1126, the tilt guide portion 1141, and the holder 1131, which may be arranged in sequence based on the outermost surface thereof. However, since the second magnetic portion is positioned in the second member and the first magnetic portion is positioned in the first member, the second member, the first member, the tilt guide portion, and the holder may be arranged in sequence.

[0373] In addition, in an embodiment, the distance between the second magnetic portion 1142 and the first magnetic portion 1143 and the holder 1131 (or the optical member 1132) in the third direction may be greater than the distance between the inclined guide portions 1141. Therefore, the second Hall sensor 1153b below the holder 1131 may also be arranged to be spaced a predetermined distance from the second magnetic portion 1142 and the first magnetic portion 1143. Therefore, the influence of the magnetic field generated by the second magnetic portion 1142 and the first magnetic portion 1143 on the second Hall sensor 1153b can be minimized, thereby preventing the Hall voltage from being concentrated to a positive or negative value and saturated. That is, this configuration can allow the Hall electrode to have a range in which Hall calibration can be performed. In addition, the temperature is also affected by the electrode of the Hall sensor and the resolution of the camera lens varies according to the temperature, but in an embodiment, the situation where the Hall voltage is concentrated to a positive or negative value can be prevented to compensate for the resolution of the lens accordingly, thereby easily preventing the reduction of the resolution.

[0374] In addition, a circuit for compensating for an offset relative to the output of the second Hall sensor 1153b (ie, the Hall voltage) can be easily designed.

[0375] In addition, according to an embodiment, some areas of the inclined guide portion 1141 relative to the fourth holder outer surface of the holder 1131 may be positioned at the outer side of the fourth holder outer surface.

[0376] In addition to the first protrusion PR1 and the second protrusion PR2, the inclined guide portion 1141 may be seated in the fourth seating groove 1131S4a based on the base BS. That is, the length of the base BS in the third direction (Z-axis direction) may be smaller than the length of the fourth seating groove 1131S4a in the third direction (Z-axis direction). With this configuration, miniaturization may be achieved.

[0377] In addition, the maximum length of the inclined guide portion 1141 in the third direction (Z-axis direction) can be greater than the length of the fourth seating groove 1131S4a in the third direction (Z-axis direction). Therefore, as described above, the end of the second protrusion PR2 can be positioned between the outer surface of the fourth retainer and the first member 1126. That is, at least a portion of the second protrusion PR2 can be positioned in a direction opposite to the third direction (Z-axis direction) of the retainer 1131. That is, the retainer 1131 can be spaced a predetermined distance from the end of the second protrusion PR2 (the portion in contact with the second protrusion groove) in the third direction (Z-axis direction).

[0378] In addition, the front surface 1131aes of the second member 1131a according to the embodiment may be spaced apart from the front surface 1126es of the first member 1126. In particular, the front surface 1131aes of the second member 1131a according to the embodiment may be positioned along the third direction (Z-axis direction) from the front surface 1126es of the first member 1126. Alternatively, the front surface 1131aes of the second member 1131a according to the embodiment may be positioned at the inner side of the front surface 1126es of the first member 1126. To this end, the first member 1126 may have a structure extending inwardly and bending. In addition, some areas of the second member 1131a may be positioned in a groove formed by the extending and bending structure of the first member 1126 described above.

[0379] With this configuration, since the second member 1131a is positioned at the inner side of the first member 1126, it is possible to improve space efficiency and achieve miniaturization. In addition, even when driving by electromagnetic force (tilting or rotation of the mover 1130) is performed, the second member 1131a does not protrude to the outside of the first member 1126, and thus can block contact with nearby devices. Therefore, reliability can be improved.

[0380] In addition, a predetermined separation space may exist between the second magnetic portion 1142 and the first magnetic portion 1143. That is, the second magnetic portion 1142 and the first magnetic portion 1143 may face each other with the same polarity.

[0381] Fig.12a is a perspective view of a first camera actuator according to an embodiment, Figure 12b It is along Fig.12a a view of the first camera actuator in line SS', and Fig.12c It shows Figure 12b An exemplary view of the movement of the first camera actuator illustrated in FIG.

[0382] Reference Figures 12a to 12c , the Y-axis tilt can be performed by the first camera actuator according to the embodiment. That is, OIS can be implemented by rotating the first camera actuator in the first direction (X-axis direction).

[0383] In an implementation, the fifth magnet 1151 c disposed under the holder 1131 may generate an electromagnetic force with the fifth coil 1152 c to tilt or rotate the mover 1130 with respect to the second direction (Y-axis direction).

[0384] Specifically, the repulsive force between the second magnetic portion 1142 and the first magnetic portion 1143 may be transmitted to the second member 1131a and the first member 1126 and ultimately to the inclined guide portion 1141 disposed between the first member 1126 and the retainer 1131. Therefore, the inclined guide portion 1141 may be pressed by the mover 1130 and the first housing 1120 by the repulsive force described above.

[0385] In addition, the second protrusion PR2 may be supported by the first member 1126. In this case, in an embodiment, the tilt guide portion 1141 may be rotated or tilted based on the second protrusion PR2 protruding toward the first member 1126 as a reference axis (or rotation axis), that is, rotated or tilted in the second direction (Y-axis direction). That is, the tilt guide portion 1141 may be rotated or tilted along the first direction (X-axis direction) based on the second protrusion PR2 protruding toward the first member 1126 as a reference axis (or rotation axis).

[0386] For example, OIS may be implemented by rotating the mover 1130 by a first angle θ1 in the X-axis direction (X1→X1a) by first electromagnetic forces F1A and F1B between a third magnet 1151c disposed in a third seating groove and a fifth coil 1152c disposed on a third plate side portion.

[0387] In contrast, OIS may be achieved by rotating the mover 1130 by a first angle θ1 in a direction opposite to the X-axis direction (X1→X1b) by means of first electromagnetic forces F1A and F1B between the third magnet 1151c disposed in the third seating groove and the fifth coil 1152c disposed on the third plate side portion.

[0388] The first angle θ1 may be in the range of ±1° to ±3°. However, the present disclosure is not limited thereto.

[0389] Hereinafter, in the first camera actuator according to various embodiments, the electromagnetic force may move the mover by generating a force in the direction, or may move the mover in the direction even when a force in another direction is generated. That is, the direction of the electromagnetic force refers to the direction of the force generated by the magnet and the coil to move the mover. For example, the first electromagnetic forces F1A and F1B may act in the third direction or in the direction opposite to the third direction.

[0390] In addition, the center MC1 of the second magnetic portion 1142 and the center MC2 of the first magnetic portion 1143 may be arranged side by side in the third direction (Z-axis direction). That is, the center line TL1 connecting the center MC1 of the second magnetic portion 1142 and the center MC2 of the first magnetic portion 1143 may be parallel to the third direction (Z-axis direction).

[0391] In addition, the bisector TL2 that bisects the second protrusion PR2 and corresponds to the third direction (Z-axis direction) may be parallel to the center line TL1 (or bisector). That is, the bisector TL2 may be a line that bisects the second protrusion PR2 in the first direction (X-axis direction), and a plurality of bisectors TL2 may be formed.

[0392] In an embodiment, the bisector TL2 can be arranged to be spaced apart from the center line TL1 in the first direction (X-axis direction). The bisector TL2 can be positioned above the center line TL1. With this configuration, since the separation distance between the fifth coil 1152c and the fifth magnet 1151c can be increased, the retainer can more accurately perform two-axis tilting. In addition, when current is not applied to the coil, the position of the retainer can be maintained in the same manner.

[0393] More specifically, since the center MC1 of the second magnetic portion 1142 and the center MC2 of the first magnetic portion 1143 are spaced apart from the bisector TL2 in the first direction (X-axis direction), the force (e.g., repulsive force) between the second magnetic portion 1142 and the first magnetic portion 1143 can act at a certain distance spaced apart from the bisector TL2 corresponding to the optical axis in the first direction (X-axis direction). In addition, momentum is generated in the mover 1130 by the force. However, when the center MC1 of the second magnetic portion 1142 and the center MC2 of the first magnetic portion 1143 are positioned on the bisector TL2, there is a problem in that the positions of the tilt guide portion and the second magnetic portion 1142 are not maintained after tilting during calibration. That is, in the camera actuator according to the embodiment, since the center MC1 of the second magnetic portion 1142 and the center MC2 of the first magnetic portion 1143 are not set on the bisector TL2, the positions of the tilt guide portion and the second magnetic portion 1142 can be maintained after tilting or rotating.

[0394] In another embodiment, the center MC1 of the second magnetic portion 1142 and the center MC2 of the first magnetic portion 1143 may be disposed to be spaced apart from each other in the first direction (X-axis direction).

[0395] In addition, the center MC1 of the second magnetic portion 1142 and the center MC2 of the first magnetic portion 1143 may not be positioned on the bisector TL2. For example, the center MC1 of the second magnetic portion 1142 and the center MC2 of the first magnetic portion 1143 may be positioned above the bisector TL2.

[0396] Therefore, since the separation distance between the fifth coil 1152c and the fifth magnet 1151c increases, the holder can perform two-axis tilting more accurately. In addition, when current is not applied to the coil, the position of the holder can be maintained in the same manner.

[0397] In addition, the second magnetic portion 1142 and the first magnetic portion 1143 may have different lengths in the first direction (X-axis direction).

[0398] In an embodiment, the area of ​​the second magnetic portion 1142 coupled to the second member 1131a and tilted together with the mover 1130 may be greater than the area of ​​the first magnetic portion 1143. For example, the length of the second magnetic portion 1142 in the first direction (X-axis direction) may be greater than the length of the first magnetic portion 1143 in the first direction (X-axis direction). In addition, the length of the second magnetic portion 1142 in the second direction (Y-axis direction) may be greater than the length of the first magnetic portion 1143 in the second direction (Y-axis direction). In addition, the first magnetic portion 1143 may be positioned in a virtual straight line extending the two ends of the second magnetic portion 1142 along a third direction.

[0399] With this configuration, even when the magnetic part (e.g., the second magnetic part) at one side is tilted when tilting or rotating, it is possible to easily prevent the generation of forces other than the vertical force due to the tilt. That is, even when the second magnetic part is vertically tilted together with the mover 1130, the second magnetic part may not receive a force (e.g., a repulsive force or an attractive force) resisting the tilt from the first magnetic part 1143. Therefore, the driving efficiency can be improved.

[0400] Fig.13a It is along Fig.12a a view of the first camera actuator in line RR', and Fig.13b yes Fig.13a An exemplary view of the movement of the first camera actuator illustrated in FIG.

[0401] Reference Fig.13a and Fig.13b , X-axis tilting may be performed. That is, OIS may be implemented by tilting or rotating the mover 1130 along the Y-axis direction.

[0402] In an embodiment, the third magnet 1151a and the fourth magnet 1151b disposed on the holder 1131 may generate electromagnetic force with the third coil 1152a and the fourth coil 1152b, respectively, and tilt or rotate the tilt guide portion 1141 and the mover 1130 relative to the first direction (X-axis direction).

[0403] Specifically, the repulsive force between the second magnetic portion 1142 and the first magnetic portion 1143 may be transmitted to the first member 1126 and the retainer 1131 and finally to the inclined guide portion 1141 disposed between the retainer 1131 and the first member 1126. Therefore, the inclined guide portion 1141 may be pressed by the mover 1130 and the first housing 1120 by the above-mentioned repulsive force.

[0404] In addition, the 1-1 protrusion PR1a and the 1-2 protrusion PR1b may be spaced apart from each other in the first direction (X-axis direction) and supported by the first protrusion groove PH1 formed in the fourth seating groove 1131S4a of the holder 1131. In addition, in an embodiment, the tilt guide portion 1141 may be rotated or tilted based on the first protrusion PR1 protruding toward the holder 1131 (for example, in the third direction) as a reference axis (or rotation axis), that is, rotated or tilted in the first direction (X-axis direction).

[0405] For example, OIS can be achieved by rotating the mover 1130 along the Y-axis direction at a second angle θ2 (Y1→Y1a) by means of the second electromagnetic forces F2A and F2B between the third magnet 1151a and the fourth magnet 1151b disposed in the first seating groove and the third coil 1152a and the fourth coil 1152b disposed on the first plate side portion and the second plate side portion. In addition, OIS can be achieved by rotating the mover 1130 along the Y-axis direction at a second angle θ2 (Y1→Y1b) by means of the second electromagnetic forces F2A and F2B between the third magnet 1151a and the fourth magnet 1151b disposed in the first seating groove and the third coil 1152a and the fourth coil 1152b disposed on the first plate side portion and the second plate side portion. The second angle θ2 may be in the range of ±1° to ±3°. However, the present disclosure is not limited thereto.

[0406] In addition, as described above, the electromagnetic force generated by the third magnet 1151a and the fourth magnet 1151b and the third coil 1152a and the fourth coil 1152b can act in the third direction or in the direction opposite to the third direction. For example, the electromagnetic force can be generated at the left side of the mover 1130 along the third direction (Z-axis direction) and act on the right side of the mover 1130 in the direction opposite to the third direction (Z-axis direction). Therefore, the mover 1130 can rotate relative to the first direction. Alternatively, the mover 1130 can move in the second direction.

[0407] As described above, the second camera actuator according to the embodiment can control the mover 1130 to rotate along the first axis (X-axis direction) or the second axis (Y-axis direction) through the electromagnetic force between the driving magnet in the holder and the driving coil provided in the first shell, thereby minimizing the occurrence of eccentricity or tilt when implementing OIS and providing optimal optical characteristics. In addition, as described above, "Y-axis tilt" refers to rotation or tilt in the first direction (X-axis direction), and "X-axis tilt" refers to rotation or tilt in the second direction (Y-axis direction).

[0408] Fig.14 is a perspective view of a second camera actuator according to an embodiment, Fig.15is an exploded perspective view of a second camera actuator according to an embodiment, Fig.16 It is along Fig.14 A view of the second camera actuator in line DD', Fig.17a , Fig.17b and Fig.17c is a perspective view of a second housing in a second camera actuator according to an embodiment, Fig.18 and Fig.19 is a view for describing each driving operation of the lens assembly according to the embodiment, and Fig. 20 is a view for describing driving of a second camera actuator according to an embodiment.

[0409] Reference Fig.14 and Fig.16 According to the embodiment, the second camera actuator 1200 may include a lens unit 1220, a second housing 1230, a second driving unit 1250, a base unit 1260, a second plate unit 1270, a coupling member 1280, a stopper unit ST, and a yoke unit YK. In addition, the second camera actuator 1200 may further include a second shielding case (not shown), an elastic unit (not shown), and a coupling member (not shown).

[0410] A second shield cover (not shown) can be positioned in a region (e.g., the outermost portion) of the second camera actuator 1200 and positioned to surround components to be described below (the lens unit 1220, the second housing 1230, the second driving unit 1250, the base unit 1260, the second board unit 1270, and the image sensor (IS)).

[0411] The second shielding case (not shown) may block or reduce electromagnetic waves generated from the outside, thereby reducing the occurrence of malfunctions in the second driving unit 1250.

[0412] The lens unit 1220 may be positioned in a second shield case (not shown). The lens unit 1220 may be moved in a third direction (Z-axis direction or optical axis direction). Therefore, the above-described AF function and zoom function may be performed.

[0413] In addition, the lens unit 1220 may be positioned in the second housing 1230. Therefore, at least a portion of the lens unit 1220 may be moved in the second housing 1230 in the optical axis direction or the third direction (Z-axis direction).

[0414] Specifically, the lens unit 1220 may include a lens group 1221 and a moving assembly 1222 .

[0415] First, the lens group 1221 may include at least one lens. In addition, although a plurality of lens groups 1221 may be formed, hereinafter, description will be made based on one lens group.

[0416] The lens group 1221 may be coupled to the moving assembly 1222 to move in a third direction (Z-axis direction) by an electromagnetic force generated by a first magnet 1252 a and a second magnet 1252 b coupled to the moving assembly 1222 .

[0417] In an embodiment, the lens group 1221 may include a first lens group 1221a, a second lens group 1221b, and a third lens group 1221c. The first lens group 1221a, the second lens group 1221b, and the third lens group 1221c may be arranged in sequence along the optical axis direction. In addition, the lens group 1221 may further include a fourth lens group 1221d. The fourth lens group 1221d may be disposed at the rear end portion of the third lens group 1221c.

[0418] The first lens group 1221a may be fixedly coupled to the 2-1 housing. That is, the first lens group 1221a may not move along the optical axis direction.

[0419] The second lens group 1221b may be coupled to the first lens assembly 1222a to move in a third direction or an optical axis direction. The magnification adjustment may be performed by moving the first lens assembly 1222a and the second lens group 1221b.

[0420] The third lens group 1221c may be coupled to the second lens assembly 1222b to move in a third direction or optical axis direction. Focus adjustment or auto-focusing may be performed by moving the third lens group 1221c.

[0421] However, the present disclosure is not limited to the number of lens groups, and the fourth lens group 1221d may not exist, or an additional lens group other than the fourth lens group 1121d may be provided.

[0422] The moving assembly 1222 may include an opening area around the lens group 1221. The moving assembly 1222 is used in an interchangeable manner with the lens assembly. In addition, the moving assembly 1222 may be coupled to the lens group 1221 by various methods. In addition, the moving assembly 1222 may include a groove in the side surface of the moving assembly 1222, and may be coupled to the first magnet 1252a and the second magnet 1252b by the groove. A coupling member or the like may be applied to the groove.

[0423] In addition, the moving assembly 1222 can be connected to an elastic unit (not shown) at the upper end and the rear end of the moving assembly 1222. Therefore, the moving assembly 1222 can be supported by the elastic unit (not shown) while moving in the third direction (Z-axis direction). That is, the position of the moving assembly 1222 can be maintained in the third direction (Z-axis direction). The elastic unit (not shown) can be formed by various elastic elements such as a leaf spring.

[0424] The moving assembly 1222 may be positioned in the second housing 1230 and may include a first lens assembly 1222a and a second lens assembly 1222b.

[0425] The area where the third lens group is seated in the second lens assembly 1222b can be positioned at the rear end of the first lens assembly 1222a. That is, the area where the third lens group 1221c is seated in the second lens assembly 1222b can be positioned between the area where the second lens group 1221b is seated in the first lens assembly 1222a and the image sensor.

[0426] Each of the first lens assembly 1222a and the second lens assembly 1222b can be seated at the inner side of the 2-2 housing. For example, the concave portion where the spherical piece is disposed in the first lens assembly 1222a can be positioned to face the first side portion. In addition, the concave portion where the spherical piece is disposed in the second lens assembly 1222b can be positioned to face the second side portion. A detailed description of this will be given below.

[0427] In addition, a second driving magnet may be seated on the outer surface of the first lens assembly 1222a and the second lens assembly 1222b. For example, the second magnet 1252b may be seated on the outer surface of the second lens assembly 1222b. The first magnet 1252a may be seated on the outer surface of the first lens assembly 1222a.

[0428] The second housing 1230 may be disposed between the lens unit 1220 and a second shield cover (not shown). In addition, the second housing 1230 may be disposed to surround the lens unit 1220.

[0429] The second housing 1230 may include a 2-1 housing 1231 and a 2-2 housing 1232. The 2-1 housing 1231 may be coupled to the first lens group 1221 a and may also be coupled to the above-mentioned first camera actuator. The 2-1 housing 1231 may be positioned in front of the 2-2 housing 1232.

[0430] In addition, the 2-2 housing 1232 may be positioned at a rear end portion of the 2-1 housing 1231. The lens unit 1220 may be seated inside the 2-2 housing 1232.

[0431] A hole may be formed in a side portion of the second housing 1230 (or the 2-2 housing 1232). The first coil 1251a and the second coil 1251b may be disposed in the hole. The hole may be positioned to correspond to the groove of the moving component 1222 described above.

[0432] In an embodiment, the second housing 1230 (particularly, the 2-2 housing 1232) may include a first side portion 1232a and a second side portion 1232b. The first side portion 1232a and the second side portion 1232b may be positioned to correspond to each other. For example, the first side portion 1232a and the second side portion 1232b may be symmetrically arranged relative to the third direction. A second drive coil 1251 may be positioned on the first side portion 1232a and the second side portion 1232b. In addition, the second board unit 1270 may be seated on the outer surface of the first side portion 1232a and the second side portion 1232b. That is, the first plate 1271 may be positioned on the outer surface of the first side portion 1232a, and the second plate 1272 may be positioned on the outer surface of the second side portion 1232b.

[0433] In addition, as another example, a first guide groove and a second guide groove facing a recess of the first lens assembly 1222a (a seating groove in which the first spherical member and the second spherical member are seated) may be positioned in the first side portion. In addition, a first guide groove and a second guide groove facing a recess of the second lens assembly 1222b may be positioned in the second side portion. In this case, there may be a structure in which a separate member (e.g., a guide unit) including the first guide groove and the second guide groove is connected to the 2-2 housing 1232. However, in an embodiment, an integrated structure in which the first guide groove and the second guide groove are formed in the 2-2 housing 1232 will be described. In addition, as in another example, the first guide unit and the second guide unit may be positioned to correspond to each other. For example, the first guide unit and the second guide unit may be positioned to face each other relative to a third direction (Z-axis direction). In addition, the first guide unit and the second guide unit may overlap each other at least partially in the second direction (Y-axis direction).

[0434] The first guide unit and the second guide unit may include at least one groove (e.g., a guide groove) or a recess. In addition, the first spherical member B1 or the second spherical member B2 may be seated in the groove or the recess. Therefore, the first spherical member B1 or the second spherical member B2 may move in the guide groove of the first guide unit or the guide groove of the second guide unit along the third direction (Z-axis direction).

[0435] Alternatively, the first spherical member B1 or the second spherical member B2 may move in the third direction along a track formed at an inner side of the first side portion 1232 a of the second housing 1230 or a track formed at an inner side of the second side portion 1232 b of the second housing 1230 .

[0436] Therefore, the first lens assembly 1222a and the second lens assembly 1222b may move in the third direction.

[0437] According to an embodiment, the first spherical member B1 may be disposed on an upper portion of the first lens assembly 1222a or the second lens assembly 1222b. In addition, the second spherical member B2 may be disposed on a lower portion of the first lens assembly 1222a or the second lens assembly 1222b. For example, the first spherical member B1 may be positioned above the second spherical member B2. Therefore, at least a portion of the first spherical member B1 may overlap with the second spherical member B2 in the first direction (X-axis direction) according to the position.

[0438] In addition, the 2-2 housing 1232 may include first guide grooves GG1a and GG2a facing the first recess RS1. In addition, the 2-2 housing 1232 may include second guide grooves GG1b and GG2b facing the second recess RS2. The first guide grooves GG1a and GG2a and the second guide grooves GG1b and GG2b may be grooves extending in a third direction (Z-axis direction). In addition, the first guide grooves GG1a and GG2a and the second guide grooves GG1b and GG2b may have different shapes. For example, the first guide grooves GG1a and GG2a may be grooves having inclined side surfaces, and the second guide grooves GG1b and GG2b may be grooves having side surfaces perpendicular to their lower surfaces.

[0439] The first magnet and the first coil can be positioned on the first side portion. In addition, the second magnet and the second coil can be positioned on the second side portion. In addition, the second magnet 1252b can be positioned to face the second coil 1251b. In addition, the first magnet 1252a can be positioned to face the first coil 1251a.

[0440] The elastic unit (not shown) may include a first elastic member (not shown) and a second elastic member (not shown). The first elastic member (not shown) may be coupled to the upper surface of the moving assembly 1222. The second elastic member (not shown) may be coupled to the lower surface of the moving assembly 1222. In addition, the first elastic member (not shown) and the second elastic member (not shown) may be formed by a leaf spring as described above. In addition, the first elastic member (not shown) and the second elastic member (not shown) may provide elasticity for moving the moving assembly 1222. However, the present disclosure is not limited to the positions described above, and the elastic unit may be provided at various positions.

[0441] In addition, the second drive unit 1250 can provide a driving force for moving the lens unit 1220 along a third direction (Z-axis direction). The second drive unit 1250 may include a second drive coil 1251 and a second drive magnet 1252. In addition, the second drive unit 1250 may also include a second Hall sensor portion. The second Hall sensor portion 1253 may include at least one fourth Hall sensor 1253a, and may be positioned at the inner side or outer side of the second drive coil 1251.

[0442] In addition, the second drive unit 1250 may correspond to a "zoom / AF drive unit" and a "rear drive unit". In addition, the zoom / AF drive unit may include a first drive unit and a second drive unit. Here, the first drive unit is different from the drive unit corresponding to the OIS drive unit described above. In the following description of the second camera actuator, the first drive unit may include a first magnet 1252a and a first coil 1251a. The first drive unit may move the first lens assembly 1222a along the optical axis direction (Z-axis direction). In addition, the first drive unit may also include a first yoke YK1 in the yoke unit. Alternatively, the first drive unit may be a component separate from the first yoke YK1. That is, the first yoke YK1 may be a component included in the first drive unit or may also be a separate component.

[0443] In addition, the second drive unit may include a second magnet 1252b and a second coil 1251b. The second drive unit may move the second lens assembly 1222b along the optical axis direction (Z-axis direction). In addition, the second drive unit may also include a second yoke YK2 in the yoke unit. Alternatively, the second drive unit may be a component separate from the second yoke YK2. That is, the second yoke YK2 may be a component included in the second drive unit or may also be a separate component.

[0444] The moving component may be moved in a third direction (Z-axis direction) by an electromagnetic force generated between the second driving coil 1251 and the second driving magnet 1252 .

[0445] The second driving coil 1251 may include a first coil 1251a and a second coil 1251b. The first coil 1251a and the second coil 1251b may be disposed in a hole formed in a side portion of the second housing 1230. In addition, the first coil 1251a and the second coil 1251b may be electrically connected to the second board unit 1270. Therefore, the first coil 1251a and the second coil 1251b may receive current, etc. through the second board unit 1270.

[0446] The second driving magnet 1252 may include a first magnet 1252a and a second magnet 1252b. The first magnet 1252a and the second magnet 1252b may be disposed in the groove of the moving component 1222 described above and positioned to correspond to the first coil 1251a and the second coil 1251b.

[0447] The base unit 1260 may be positioned between the lens unit 1220 and the image sensor IS. Components such as filters may be fixed to the base unit 1260. In addition, the base unit 1260 may be arranged to surround the image sensor described above. With this configuration, since the image sensor has no foreign matter, etc., the reliability of the device may be improved. However, some of the following drawings will be described with the above description removed. However, the present disclosure may not be limited to this structure.

[0448] In addition, the second camera actuator 1200 may be a zoom actuator or an AF actuator. For example, the second camera actuator 1200 may support one lens or a plurality of lenses and perform at least one of an AF function and a zoom function by moving the lens according to a predetermined control signal of the controller.

[0449] In addition, the second camera actuator can be a fixed zoom or a continuous zoom. For example, the second camera actuator can provide movement of the lens group 1221.

[0450] In addition, the second camera actuator may be formed by a plurality of lens assemblies. For example, at least one of a third lens assembly (not shown) and a guide pin (not shown) in addition to the first lens assembly 1222a and the second lens assembly 1222b may be provided in the second camera actuator. In this regard, the above-described contents may be applied. Therefore, the second camera actuator may perform a high-power zoom function by a second driving unit. For example, the first lens assembly 1222a and the second lens assembly 1222b may be movable lenses moved by a second driving unit and a guide pin (not shown), and the third lens assembly (not shown) may be a fixed lens, but the present disclosure is not limited thereto. For example, the third lens assembly (not shown) may perform the function of a focuser through which light forms an image at a specific position, and the first lens assembly may perform the function of a converter for causing the image formed by the third lens assembly (not shown) as a focuser to be reformed at another position. At the same time, since the distance to the object or the image distance changes greatly, the first lens assembly can be in a state where the magnification changes greatly, and the first lens assembly as a converter can play an important role in the focal length or magnification change of the optical system. At the same time, the imaging point of the image formed by the first lens assembly as a converter may be slightly different depending on the position. Therefore, the second lens assembly can perform a position compensation function for the image formed by the converter. For example, the second lens assembly can use the imaging point of the image formed by the second lens assembly 1222b as a converter to perform the function of a compensator for accurately forming an image at the actual position of the image sensor. However, the configuration of the embodiment will be described with reference to the following drawings.

[0451] The image sensor may be positioned at the inside or outside of the second camera actuator. In an embodiment, as illustrated, the image sensor may be positioned at the outside of the second camera actuator. For example, the image sensor may be positioned on a circuit board. The image sensor may receive light and convert the received light into an electrical signal. In addition, the image sensor may include a plurality of pixels in an array. In addition, the image sensor may be positioned on an optical axis.

[0452] The second plate unit 1270 may be in contact with the side portion of the second shell. For example, the second plate unit 1270 may be positioned on the outer surface (first side surface) of the first side portion and the outer surface (second side surface) of the second side portion of the second shell, particularly the 2-2 shell, and may be in contact with the first side surface and the second side surface.

[0453] The stopper unit ST includes a first stopper ST1 disposed at one end of the 2-2 housing 1232 and a second stopper ST2 disposed at the other end of the 2-2 housing 1232. The first stopper ST1 and the second stopper ST2 may be sequentially arranged along the optical axis direction.

[0454] In addition, a plurality of first stoppers ST1 (ST1a and ST1b) may be formed, and the plurality of first stoppers ST1 (ST1a and ST1b) may be respectively disposed on the moving path of the first lens assembly and the moving path of the second lens assembly. For convenience, the 1-1 stopper ST1a and the 1-2 stopper ST1b will be described. Similarly, a plurality of second stoppers ST2 (ST2a and ST2b) may be formed, and the plurality of second stoppers ST2 (ST2a and ST2b) may be respectively disposed on the moving path of the first lens assembly and the moving path of the second lens assembly. In addition, the 2-1 stopper ST2a and the 2-2 stopper ST2b will be described.

[0455] The 1-1 stopper ST1a and the 2-1 stopper ST2a may be positioned on a moving path of the first lens assembly. The 1-2 stopper ST1b and the 2-2 stopper ST2b may be positioned on a moving path of the second lens assembly.

[0456] The 1-1 stopper ST1a and the 1-2 stopper ST1b may overlap in the second direction. Alternatively, the 1-1 stopper ST1a and the 1-2 stopper ST1b may be misaligned in the second direction.

[0457] In addition, the 2-1 stopper ST2a and the 2-2 stopper ST2b may be positioned so as to be misaligned in the second direction. The distance between the 1-1 stopper ST1a and the 2-1 stopper ST2a in the third direction may be smaller than the distance between the 1-2 stopper ST1b and the 2-2 stopper ST2b. This is a configuration reflecting that the movable distance (stroke) of the first lens assembly is smaller than the movable distance (stroke) of the second lens assembly.

[0458] In an embodiment, the second yoke unit or the yoke unit YK may be disposed at the outer side of the second drive unit, and for example, the yoke unit YK may be disposed at the outer side of the first coil and the second coil. The yoke unit YK may include a first yoke YK1 and a second yoke YK2. The first yoke YK1 may overlap with the first drive unit (the first magnet and the first coil) in a direction perpendicular to the optical axis direction (e.g., the second direction). In addition, the second yoke YK2 may overlap with the second drive unit (the second magnet and the second coil) in a direction perpendicular to the optical axis direction (e.g., the second direction).

[0459] The first yoke YK1 and the second yoke YK2 may be disposed opposite to each other. For example, the first yoke YK1 and the second yoke YK2 may be positioned to correspond to each other with respect to the optical axis.

[0460] The first yoke YK1 may be positioned adjacent to the first coil 1251a. The second yoke YK2 may be positioned adjacent to the second coil 1251b. The first coil 1251a and the second coil 1251b may be positioned at the inner sides of the first yoke YK1 and the second yoke YK2. In addition, the first yoke YK1, the first coil 1251a, the second coil 1251b and the second yoke YK2 may be arranged in sequence along one direction (e.g., the second direction).

[0461] The first yoke YK1 can generate an attraction force with the first magnet. In addition, the second yoke YK2 can generate an attraction force with the second magnet. Therefore, the posture of the first lens assembly and the second lens assembly can be maintained. That is, the first yoke YK1 and the second yoke YK2 can provide a holding force for the position of the first lens assembly and the second lens assembly.

[0462] In addition, each of the first yoke YK1 and the second yoke YK2 may include regions with different thicknesses. For example, the first yoke YK1 may include a first region and a second region having a thickness different from that of the first region. Similarly, the second yoke YK2 may also include a first region and a second region having a thickness different from that of the first region corresponding to the first yoke. A description of this will be given below.

[0463] Reference Fig.17a , Fig.17b and Fig.17c As described above, the second housing 1230 (particularly, the 2-2 housing 1232) may include a first side portion 1232a and a second side portion 1232b. The first side portion 1232a and the second side portion 1232b may be positioned to correspond to each other. For example, the first side portion 1232a and the second side portion 1232b may be symmetrically arranged relative to the third direction. The second drive coil may be positioned on the first side portion 1232a and the second side portion 1232b. In addition, the second board unit may be seated on the outer surface of the first side portion 1232a and the second side portion 1232b. The second board unit may be positioned at the outside of the drive coil and electrically connected to the drive coil.

[0464] For example, the first plate may be positioned on an outer surface of the first side portion 1232a, and the second plate may be positioned on an outer surface of the second side portion 1232b.

[0465] In addition, the first guide grooves GG1a and GG1b in which the first spherical member and the second spherical member are seated may be positioned in the inner surface of the first side portion 1232a. The first guide grooves GG1a and GG1b may face the first recess and the second recess described above. Similarly, the second guide grooves GG2a and GG2b in which the first spherical member and the second spherical member are seated may be positioned in the inner surface of the second side portion 1232b. The first guide grooves GG1a and GG1b may face the first recess and the second recess described above.

[0466] In addition, the first side portion 1232a may include a first side portion hole 1232ah. The first magnet may be positioned in the first side portion hole 1232ah. In addition, the length of the first side portion hole 1232ah in the first direction may be smaller than the length of the first coil in the first direction.

[0467] In addition, the second side portion 1232b may include a second side portion hole 1232bh. The second magnet may be positioned in the second side portion hole 1232bh. In addition, the length of the second side portion hole 1232bh in the first direction may be smaller than the length of the second coil in the first direction.

[0468] In addition, the 2-2 housing 1232 may include a housing hole 1232h provided in one of the upper and lower portions of the housing. The coupling can be easily performed through the housing hole 1232h, or the first and second lens assemblies can be inspected (eg, visually inspected).

[0469] In addition, the first guide grooves GG1a and GG1b positioned on the first side portion 1232a may extend in the third direction. In addition, the first guide grooves GG1a and GG1b may have different shapes. For example, any one of the first guide grooves GG1a may be an inclined groove, and the other guide groove GG1b may be a flat structure. This may also be applied to the second guide grooves GG2a and GG2b in the same manner. The first spherical member and the second spherical member may be seated in the inclined grooves and the flat structure so that the first lens assembly or the second lens assembly may move in the optical axis direction.

[0470] Reference Fig.18 and Fig.19 In the camera module according to the embodiment, by generating an electromagnetic force DEM1 between the first magnet 1252a and the first coil 1251a, the first lens assembly 1222a can be moved along a track positioned on the inner surface of the shell through the first spherical part B1 and the second spherical part B2 in a direction parallel to the optical axis, that is, in a third direction (Z-axis direction) or in a direction opposite to the third direction.

[0471] Specifically, in the camera module according to the embodiment, the first magnet 1252a may be provided in the first lens assembly 1222a, for example, by a vertical monopole magnetization method. For example, in the embodiment, both the N pole and the S pole of the first magnet 1252a may be positioned to face the first coil 1251a. Therefore, each of the N pole and the S pole of the first magnet 1252a may be provided to correspond to a region where a current flows from the first coil 1251a in the X-axis direction or in a direction opposite to the X-axis direction.

[0472] In an embodiment, when a magnetic force is applied from the N pole of the first magnet 1252a in a direction opposite to the second direction (Y-axis direction) and a current DE1 flows in the first coil 1251a corresponding to the N pole in a direction opposite to the first direction (X-axis direction), the electromagnetic force DEM1 can act in a third direction (Z-axis direction) according to the interaction of electromagnetic forces (e.g., Fleming's left-hand rule).

[0473] In addition, in an embodiment, when a magnetic force is applied from the S pole of the first magnet 1252a along the second direction (Y-axis direction) and the current DE1 flows in the first coil 1251a corresponding to the S pole along the first direction (X-axis direction), the electromagnetic force DEM1 can act along the Z-axis direction according to the interaction of the electromagnetic forces.

[0474] At this time, since the first coil 1251a is in a state of being fixed to the side portion of the second housing, the first lens assembly 1222a on which the first magnet 1252a is disposed can be moved in a direction opposite to the Z-axis direction by the electromagnetic force DEM1 according to the current direction. That is, the second driving magnet can be moved in a direction opposite to the electromagnetic force applied to the second driving coil. In addition, the direction of the electromagnetic force can be changed according to the current of the coil and the magnetic force of the magnet.

[0475] Therefore, the first lens assembly 1222a can be moved in a third direction or a direction parallel to the optical axis direction (in two directions) along a track positioned on the inner surface of the housing through the first spherical member B1 and the second spherical member B2. At this time, the electromagnetic force DEM1 can be controlled to be proportional to the current DE1 applied to the first coil 1251a.

[0476] The first lens assembly 1222a or the second lens assembly 1222b may include a first recess RS1 in which the first spherical member B1 is seated. In addition, the first lens assembly 1222a or the second lens assembly 1222b may include a second recess RS2 in which the second spherical member B2 is seated. The length of the first recess RS1 may be pre-set in the optical axis direction (Z-axis direction). In addition, the length of the second recess RS2 may be pre-set in the optical axis direction (Z-axis direction). Therefore, the moving distance of the first spherical member B1 and the second spherical member B2 in each recess in the optical axis direction may be adjusted. That is, the first recess RS1 or the second recess RS2 may be a stopper for the first spherical member B1 and the second spherical member B2.

[0477] In addition, in the camera module according to the embodiment, the second magnet 1252b can be provided on the second lens assembly 1222b by, for example, a vertical magnetization method. For example, in the embodiment, both the N pole and the S pole of the second magnet 1252b can be positioned to face the second coil 1251b. Therefore, each of the N pole and the S pole of the second magnet 1252b can be provided to correspond to the region where the current flows from the second coil 1251b in the X-axis direction or in the direction opposite to the X-axis direction.

[0478] In an embodiment, when a magnetic force DM2 is applied from the N pole of the second magnet 1252b along a second direction (Y-axis direction) and a current DE2 flows in the second coil 1251b corresponding to the N pole along a first direction (X-axis direction), the electromagnetic force DEM2 can act along a third direction (Z-axis direction) according to the interaction of electromagnetic forces (e.g., Fleming's left-hand rule).

[0479] In addition, in an embodiment, when a magnetic force is applied from the S pole of the second magnet 1252b in a direction opposite to the second direction (Y-axis direction) and the current DE2 flows in the second coil 1251b corresponding to the S pole in a direction opposite to the first direction (X-axis direction), the electromagnetic force DEM2 can act along the Z-axis direction according to the interaction of the electromagnetic forces.

[0480] At this time, since the second coil 1251b is in a state of being fixed to the side portion of the second shell, the second lens assembly 1222b on which the second magnet 1252b is disposed can be moved in a direction opposite to the Z-axis direction by the electromagnetic force DEM2 according to the direction of the current. For example, as described above, the direction of the electromagnetic force can be changed according to the current of the coil and the magnetic force of the magnet. Therefore, the second lens assembly 1222b can be moved in a direction parallel to the third direction (Z-axis direction) along the track located on the inner surface of the second shell through the second spherical piece B2. At this time, the electromagnetic force DEM2 can be controlled to be proportional to the current DE2 applied to the second coil 1251b.

[0481] Reference Fig. 20 In the camera module according to the embodiment, the second driving unit may provide driving forces F3A, F3B, F4A, and F4B that move the first lens assembly 1222a and the second lens assembly 1222b of the lens unit 1220 in a third direction (Z-axis direction). As described above, the second driving unit may include a second driving coil 1251 and a second driving magnet 1252. In addition, the lens unit 1220 may be moved in the third direction (Z-axis direction) by an electromagnetic force generated between the second driving coil 1251 and the second driving magnet 1252.

[0482] At this time, the first coil 1251a and the second coil 1251b may be disposed in holes formed in the side portions (e.g., the first side portion and the second side portion) of the second housing 1230. In addition, the second coil 1251b may be electrically connected to the first board 1271. The first coil 1251a may be electrically connected to the second board 1272. Therefore, the first coil 1251a and the second coil 1251b may receive a driving signal (e.g., current) from a driving driver on the circuit board 1300 through the second board unit 1270.

[0483] At this time, the first lens assembly 1222a on which the first magnet 1252a is seated can move along the third direction (Z-axis direction) through the electromagnetic forces F3A and F3B between the first coil 1251a and the first magnet 1252a. In addition, the second lens group 1221b seated on the first lens assembly 1222a can also move along the third direction.

[0484] In addition, the second lens assembly 1222b on which the second magnet 1252b is seated can be moved along the third direction (Z-axis direction) by the electromagnetic forces F4A and F4B between the second coil 1251b and the second magnet 1252b. In addition, the third lens group 1221c seated on the second lens assembly 1222b can also be moved along the third direction.

[0485] Therefore, as described above, the focal length or magnification of the optical system can be changed by moving the second lens group 1221b and the third lens group 1221c. In an embodiment, the magnification can be changed by moving the second lens group 1221b. That is, zooming can be performed. In addition, the focus can be adjusted by moving the third lens group 1221c. That is, autofocus can be performed. With this configuration, the second camera actuator can be fixed zoom or continuous zoom.

[0486] Fig.21 is a schematic diagram illustrating a circuit board according to an embodiment.

[0487] Reference Fig.21As described above, the circuit board 1300 according to the embodiment may include a first circuit board unit 1310 and a second circuit board unit 1320. The first circuit board unit 1310 may be positioned below the base and coupled to the base. In addition, the image sensor IS may be provided on the first circuit board unit 1310. In addition, the first circuit board unit 1310 and the image sensor IS may be electrically connected. That is, the base may be positioned at the rear end of the second camera actuator, and the image sensor and the circuit board (first circuit board unit) may be positioned at the rear end of the base. The base may include an optical filter (e.g., infrared). In addition, the second circuit board unit 1320 may be positioned on a side portion of the base. In particular, the second circuit board unit 1320 may be positioned on a first side portion of the base. Therefore, the second circuit board unit 1320 may be positioned adjacent to the first coil, which is positioned adjacent to the first side portion, for easy electrical connection. In addition, the second circuit board unit 1320 may be positioned on a second side portion of the base. As described above, a plurality of second circuit board units 1320 may be formed. However, the present disclosure is not limited thereto, and the second circuit board unit 1320 may be disposed on only either one of the first side portion and the second side portion.

[0488] In addition, the circuit board 1300 may further include a fixing plate (not shown) positioned on a side surface of the circuit board. Therefore, even when the circuit board 1300 is made of a flexible material, the circuit board 1300 may be coupled to the base while maintaining rigidity through the fixing plate.

[0489] The second circuit board unit 1320 of the circuit board 1300 may be positioned on a side portion of the second drive unit 1250. The circuit board 1300 may be electrically connected to the first drive unit and the second drive unit. For example, the electrical connection may be performed by surface mounting technology (SMT). However, the present disclosure is not limited to this method.

[0490] The circuit board 1300 may include a circuit board having a wiring pattern that can be electrically connected, such as a rigid printed circuit board (rigid PCB), a flexible PCB, and a rigid-flexible PCB. However, the present disclosure is not limited to these types.

[0491] In addition, the circuit board 1300 may be electrically connected to another camera module in the terminal or a processor of the terminal. Therefore, the camera actuator and the camera module including the camera actuator described above may transmit and receive various signals within the terminal.

[0492] Fig. 22 is a perspective view of a first lens assembly, a first coupling member, a second coupling member, and a second lens assembly according to an embodiment.

[0493] Reference Fig. 22, the first lens assembly 1222a and the second lens assembly 1222b can be arranged to be spaced apart from each other in the optical axis direction (Z axis direction). In addition, the first lens assembly 1222a and the second lens assembly 1222b can be moved along the optical axis direction (Z axis direction) by the second driving unit. For example, an auto focus or zoom function can be performed by moving the first lens assembly 1222a and the second lens assembly 1222b.

[0494] In addition, the first lens assembly 1222a may include a first lens holder LAH1 for holding and coupling the second lens group 1221b. The first lens holder LAH1 may be coupled to the second lens group 1221b. In addition, the first lens holder LAH1 may include a first lens hole LH1 for accommodating the second lens group 1221b. That is, the second lens group 1221b including at least one lens may be disposed in the first lens hole LH1. The first lens holder LAH1 may be used in an interchangeable manner with a housing unit (e.g., a first housing unit or a second housing unit).

[0495] In addition, the second lens assembly 1222b may include a second lens holder LAH2 for holding and coupling the third lens group 1221c. In addition, the second lens holder LAH2 may include a second lens hole LH2 for accommodating the third lens group 1221c. That is, at least one lens may be disposed in the second lens hole LH2.

[0496] In an embodiment, each of the first lens assembly 1222a and the second lens assembly 1222b may include outer surfaces adjacent to each other. The first lens assembly 1222a may include a first outer surface MM1, and the second lens assembly 1222b may include a second outer surface MM2. The first outer surface MM1 may be the lower surface of the first lens holder LAH1 relative to the optical axis direction (Z-axis direction). In addition, the third outer surface MM3 to be described below may be the upper surface of the first lens holder LAH1. In addition, the second outer surface MM2 may be the upper surface of the second lens holder LAH2, and the fourth outer surface MM4 may be the lower surface of the second lens holder LAH2.

[0497] In addition, the first outer surface MM1 and the second outer surface MM2 may at least partially overlap in the optical axis direction (Z axis direction).In an embodiment, the first to fourth outer surfaces MM1 to MM4 may at least partially overlap in the optical axis direction (Z axis direction).

[0498] For example, a coupling member (not shown) may be in contact with at least one of the first outer surface MM1 and the second outer surface MM2.

[0499] Fig.23is a view in which a second housing is removed from a second camera actuator according to an embodiment, Fig.24 is a side view of various examples of a second yoke unit in a second camera actuator according to an embodiment, Fig.25 is a top view of various examples of a second yoke unit in a second camera actuator according to an embodiment, Fig.26 is a view illustrating one example of a second yoke unit in a second camera actuator according to an embodiment, and Fig. 27 is a view illustrating another example of the second yoke unit in the second camera actuator according to the embodiment.

[0500] Reference Fig.23 In the second camera actuator according to the embodiment, the yoke unit may be provided adjacent to each of the first lens assembly and the second lens assembly which are sequentially arranged and moved along the optical axis direction (Z-axis direction).

[0501] In an embodiment, the yoke unit YK may be disposed at an outer side of the second driving unit, and for example, the yoke unit YK may be disposed at outer sides of the first coil and the second coil. The yoke unit YK may include a first yoke YK1 and a second yoke YK2.

[0502] The first yoke YK1 and the second yoke YK2 may be disposed opposite to each other. For example, the first yoke YK1 and the second yoke YK2 may be positioned to correspond to each other with respect to the optical axis.

[0503] The first yoke YK1 may be positioned adjacent to the first coil 1251a. The second yoke YK2 may be positioned adjacent to the second coil 1251b. The first coil 1251a and the second coil 1251b may be positioned at the inner sides of the first yoke YK1 and the second yoke YK2. In addition, the first yoke YK1, the first coil 1251a, the second coil 1251b and the second yoke YK2 may be arranged in sequence along one direction (e.g., the second direction).

[0504] The yoke unit YK can generate a connection strength with the first magnet 1252a and the second magnet 1252b. Therefore, the second housing can be easily connected to the first lens assembly 1222a and the second lens assembly 1222b. In addition, when the first lens assembly 1222a and the second lens assembly 1222b move along the optical axis, the posture of the first lens assembly 1222a and the second lens assembly 1222b in the first direction, etc. can be maintained.

[0505] In an embodiment, the yoke unit YK may have a plurality of regions with different thicknesses. The yoke unit YK may include a first region SA1 and a second region SA2. The second region SA2 may have a greater thickness than the first region SA1. That is, the thickness dd2 of the second region SA2 may be greater than the thickness dd1 of the first region SA1. The thickness of the yoke unit YK may be a length in a direction perpendicular to the optical axis. For example, the thickness may be a length in the second direction. Therefore, the attraction between the magnets in the second region SA2 may be increased. For example, the second region SA2 of the second yoke YK2 may prevent the magnetism generated by the second magnet from being provided to the other side thereof. In addition, the second region SA2 of the second yoke YK2 may also increase the attraction with the second magnet to offset the influence of the first magnet on the second component (e.g., a failure (movement to the rear end)).

[0506] Alternatively, the yoke unit YK may include a first area SA1 and a second area SA2 having a magnetic strength different from that of the first area SA1. In particular, the first yoke YK1 may include a first area SA1 and a second area SA2 having different magnetic strengths.

[0507] In addition, the first yoke YK1 may include a first area SA1 and a second area SA2. Similarly, the second yoke YK2 may include a first area SA1 and a second area SA2.

[0508] The yoke unit YK may include a first separation area DA1, a third separation area DA3, and a second separation area DA2 which are sequentially arranged along the optical axis direction.

[0509] The first separation area DA1 may be positioned at one end or front end of the yoke unit YK. Here, one end or front end refers to a portion of the yoke unit YK adjacent to the first camera actuator. In addition, one end or front end may refer to an end in a direction opposite to the optical axis direction.

[0510] In addition, the second separation area DA2 can be positioned at the other end or rear end of the yoke unit YK. Here, the other end or rear end may refer to the end in the optical axis direction. In addition, the other end or rear end may refer to the portion of the yoke unit YK adjacent to the image sensor.

[0511] The third separation area DA3 may be positioned between the first separation area DA1 and the second separation area DA2.

[0512] The second area SA2 may be provided in any one of the first to third partition areas DA1 to DA3 of the yoke unit YK. In addition, these contents may be applied to the second area SA2 of each of the first and second yokes YK1 and YK2 in the same manner.

[0513] In an embodiment, the second area SA2 of the yoke unit YK may be positioned in the first separation area DA1. Therefore, the second area SA2 having a large thickness may be disposed closer to the first camera actuator than the first area SA1. Therefore, the yoke unit YK may more easily block the magnetic force generated from the first camera actuator through the second area SA2. Therefore, the first lens assembly and the second lens assembly may be moved or driven more accurately in the second camera actuator.

[0514] In addition, second areas SA2 of the first yoke YK1 and the second yoke YK2 that are opposed to each other may be positioned to overlap or be misaligned in the second direction. A description thereof will be given below.

[0515] In addition, as described above, the yoke unit YK can be arranged on the second plate arranged at the outer side of the second shell. For example, the yoke unit YK can be arranged at the outer side of the second plate. In addition, the yoke unit YK can have a structure to be connected to the second plate and the second shell. For example, the yoke unit YK can be connected to the second plate and the second shell through a hole. That is, the above-mentioned connection can be performed by connecting the hole and the protrusion or applying a bonding member to the hole.

[0516] In addition, the yoke unit may be divided into two regions along the optical axis direction. In this case, the second region SA2 may be provided in either region of the two regions. In addition, the first region SA1 may be provided in the other region of the two regions. In addition, a portion of the first region SA1 may also be provided on a portion of either region of the two regions.

[0517] In addition, the yoke unit may include a boundary area BA between the first area SA1 and the second area SA2. In addition, each of the first yoke YK1 and the second yoke YK2 may include a boundary area BA.

[0518] Reference Fig.24 , in the second camera actuator, the second area SA2 of the yoke unit YK may be positioned in any one of the first partition area DA1, the second partition area DA2, and the third partition area DA3. In addition, the second area SA2 may be provided on a portion of any one of the first partition area DA1, the second partition area DA2, and the third partition area DA3 and may be provided on a portion of the other of the first partition area DA1, the second partition area DA2, and the third partition area DA3. The position of the second area SA2 may also be changed according to the position of the telephoto, wide angle, and mid-focus of the second camera actuator.

[0519] In this embodiment, the second area SA2 may be positioned in the first separation area DA1 in the second camera actuator (see Fig.24 (a) in the figure). That is, the second area SA2 can be positioned at one end of the yoke unit YK. In addition, the second area SA2 and the first area SA1 can be arranged in sequence along the optical axis direction in the yoke unit YK. In this case, as described above, the phenomenon that the magnetic force generated from the first camera actuator, etc. is applied to the second camera actuator can be blocked.

[0520] In addition, if Fig.24 As shown in (b) of FIG. 1 , the second area SA2 may be positioned between the separated first areas SA1. Fig.24 As shown in (c) of FIG. 1 , the second area SA2 may be positioned at the other end of the yoke unit YK. That is, the second area SA2 may be positioned adjacent to the image sensor. In addition, the first area SA1 and the second area SA2 may be arranged in sequence along the optical axis direction in the yoke unit YK.

[0521] Reference Fig.25 As described above, in the second camera actuator, the yoke unit YK may include a first yoke YK1 and a second yoke YK2 that are opposite to each other.

[0522] In addition, the second area SA2 of the first yoke YK1 may overlap with the second area SA2 of the second yoke YK2 or may be at least partially misaligned. In this case, the overlapping direction may be a second direction (Y-axis direction) perpendicular to the optical axis.

[0523] like Fig.25 As shown in (a), the second area SA2 of the first yoke YK1 can be arranged at the same position as the second area SA2 of the second yoke YK2 along the optical axis direction. Therefore, the second area SA2 of the first yoke YK1 can overlap with the second area SA2 of the second yoke YK2 (along the second direction).

[0524] Similarly, the first area SA1 of the first yoke YK1 may be positioned at the same position as the first area SA1 of the second yoke YK2 in the optical axis direction. Therefore, the first area SA1 of the first yoke YK1 may overlap with the first area SA1 of the second yoke YK2.

[0525] In addition, in the yoke units YK1 and YK2, the thickness dd2 of the second area SA2 (hereinafter referred to as the "second thickness") may be greater than the thickness dd1 of the first area SA1 (hereinafter referred to as the "first thickness"). For example, the thickness dd2 of the second area SA2 may be in the range of 0.07 mm to 0.13 mm. In addition, the first thickness dd1 and the second thickness dd2 may have a thickness ratio of 1:1.2 to 1:2.6. Preferably, the thickness ratio may be in the range of 1:1.4 to 1:2.4. More preferably, the thickness ratio may be in the range of 1:1.5 to 1:2.2. When the thickness ratio is greater than 1:2.6, there are problems of increased weight and greatly increased frictional force resisting driving the lens assembly. In addition, when the thickness ratio is less than 1:1.2, the blocking effect on the magnetic field interference generated from the first magnet, the second magnet, etc. may not be significant.

[0526] In addition, the length of the second area SA2 may be different from the length of the first area SA1. For example, the length of the second area SA2 may be less than the length of the first area SA1. With this configuration, the magnetic field interference generated by the first magnet and the second magnet can be blocked, and the magnetic force from the first camera actuator can be easily blocked. In addition, the increase in the friction force of the spherical piece in the second camera actuator against the first lens assembly and the second lens assembly can be minimized. Here, the length refers to the length in the second direction. The length ratio of the second area SA2 to the first area SA1 may be in the range of 1:1 to 1:3. In addition, the length of the second area SA2 may be 20% to 50% of the length of the first yoke YK1.

[0527] In addition, the thickness dd2b at one end of the second area SA2 and the thickness dd2a at the other end may be the same as or different from each other. That is, the thickness dd2b at one end of the second area SA2 may be the same as the second thickness dd2a at the other end of the second area SA2. In addition, the thickness dd2b at one end of the second area SA2 may be different from the second thickness dd2a at the other end of the second area SA2. In an embodiment, in the first yoke YK1, the thickness of the second area SA2 may be in the range of 1.2 to 2.5 times the thickness of the first area SA1. Preferably, in the first yoke YK1, the thickness of the second area SA2 may be in the range of 1.3 to 2.0 times the thickness of the first area SA1. More preferably, in the first yoke YK1, the thickness of the second area SA2 may be in the range of 1.4 to 1.7 times the thickness of the first area SA1. In various examples, the description of both thickness and length can be applied to the yoke unit.

[0528] Reference Fig.25(b), in the second camera actuator according to the embodiment, the second area SA2 of the second yoke YK2 may be partially misaligned with the second area SA2 of the first yoke YK1. Therefore, the second area SA2 of the first yoke YK1 may overlap with the first area SA1 of the second yoke YK2. In addition, the second area SA2 of the second yoke YK2 may overlap with the first area SA1 of the first yoke YK1.

[0529] In addition, the first area SA1 of the first yoke YK1 and the first area SA1 of the second yoke YK2 may at least partially overlap each other.

[0530] In addition, the thickness dd2b at one end of the second area SA2 may be different from the second thickness dd2a at the other end of the second area SA2. Also, in various examples, descriptions of both thickness and length may be applied to the yoke unit.

[0531] For example, the second area SA2 of the first yoke or the second yoke may have one end and the other end with different thicknesses, and the thickness may be linearly or stepwise deformed from one end to the other end. In addition, the deformation of the thickness in the second area SA2 may be applied by various methods.

[0532] In addition, the first area SA1 of the first yoke YK1 and the first area SA1 of the second yoke YK2 may be disposed diagonally or alternately with respect to the optical axis.

[0533] In addition, refer to Fig.25 (c), in the second camera actuator according to the embodiment, a portion of the second area SA2 of the second yoke YK2 may overlap with the second area SA2 of the first yoke YK1, and the remaining portion of the second area SA2 of the second yoke YK2 may be misaligned with the second area SA2 of the first yoke YK1. That is, in the second camera actuator according to the embodiment, at least a portion of the second area SA2 of the second yoke YK2 may be misaligned with the second area SA2 of the first yoke YK1. Therefore, the second area SA2 of the first yoke YK1 may overlap with the first area SA1 of the second yoke YK2. In addition, a portion of the second area SA2 of the second yoke YK2 may overlap with the first area SA1 of the first yoke YK1.

[0534] Reference Fig.25(d) in the second camera actuator according to the embodiment, the second area SA2 of the second yoke YK may be formed on either the first yoke YK1 or the second yoke YK2. For example, the first yoke YK1 may include a first area SA1 and a second area SA2. In contrast, the thickness of the second yoke YK2 may inevitably vary. In this case, when the thickness does not vary, it means that the thickness is within a range including a rate of variation of 10% based on the average thickness. In addition, the first yoke YK1 may not vary in thickness, and the second yoke YK2 may also have a first area SA1 and a second area SA2.

[0535] Reference Fig.26 In the second camera actuator according to the embodiment, the second area SA2 of the yoke unit may be positioned on the side surface of the second board unit 1270. The second area SA2 of the yoke unit may face the second board unit 1270. In addition, the second area SA2 of the yoke unit may contact the second board unit 1270.

[0536] The yoke unit may protrude outward or inward from the second area SA2. Fig.26 In the embodiment of the present invention, the second area SA2 of the yoke unit may have a structure protruding outward from the second plate unit 1270. That is, the second area SA2 may have a structure protruding outward from the first area SA1. With this structure, the spacing distance between the yoke unit and the first magnet (or the second magnet) in the second direction may be maintained equally.

[0537] For example, a spacing distance GP2 between the second area SA2 and the first magnet (or the second magnet) in the second direction may be equal to a spacing distance GP1 between the first area SA1 and the first magnet (or the second magnet) in the second direction.

[0538] Therefore, even when the attractive force between the first and second magnets and the yoke unit increases in the region adjacent to the second area SA2, generation of a very large friction force against the first and second lens assemblies in a specific region can be suppressed.

[0539] Reference Fig. 27 As described above, in the second camera actuator according to the embodiment, the second area SA2 of the yoke unit may be positioned on the side surface of the second board unit 1270. The second area SA2 of the yoke unit may face the second board unit 1270. In addition, the second area SA2 of the yoke unit may contact the second board unit 1270.

[0540] The yoke unit may protrude outward or inward from the second area SA2. Fig. 27, the second area SA2 of the yoke unit may have a structure protruding inward from the second plate unit 1270. That is, the second area SA2 may have a structure protruding inward from the first area SA1. With this structure, the spacing distance between the yoke unit and the first magnet (or the second magnet) in the second direction may be different. For example, the spacing distance GP2 between the second area SA2 and the first magnet (or the second magnet) in the second direction may be greater than the spacing distance GP1 between the first area SA1 and the first magnet (or the second magnet) in the second direction. Therefore, the length of the second camera actuator in the second direction can be reduced.

[0541] Fig.28 is a cross-sectional view of a second camera actuator in a wide-angle state according to an embodiment, Fig.29 is a cross-sectional view of a second camera actuator in a telephoto state according to an embodiment, Fig.30 is a graph for describing driving of the third group when the structure of the second yoke unit is not applied to the second camera actuator according to the embodiment, and Fig.31 is a graph for describing driving of the third group when the structure of the second yoke unit is applied to the second camera actuator according to the embodiment.

[0542] Reference Fig.28 In the second camera actuator, the first yoke YK1 may be disposed adjacent to the first coil 1251a. In addition, the second yoke YK2 may be positioned adjacent to the second coil 1251b. In addition, the first yoke YK1 may be positioned adjacent to the first magnet 1252a. In addition, the second yoke YK2 may be positioned adjacent to the second magnet 1252b.

[0543] In addition, the driving coil according to the embodiment may include a hollow portion. In the embodiment, the first coil 1251a may include a first coil hollow portion 1251ah. In addition, the second coil 1251b may include a second coil hollow portion 1251bh.

[0544] In this case, the second area SA2 of the yoke unit may not overlap with the hollow portion (the first coil hollow portion and the second coil hollow portion). That is, the second area SA2 of the yoke unit may be positioned to be misaligned with the hollow portion (the first coil hollow portion and the second coil hollow portion) in the second direction. In addition, the second area SA2 of the yoke unit may be positioned closer to the first camera actuator than the hollow portion (the first coil hollow portion and the second coil hollow portion). That is, the second area SA2 of the yoke unit may be arranged to be farther from the image sensor than the hollow portion (the first coil hollow portion and the second coil hollow portion).

[0545] In addition, the first magnet 1252a and the second magnet may include a first pole region (N pole or S pole), a second pole region (S pole or N pole) and a neutral region NA1 or NA2. The neutral region NA1 or NA2 may be disposed between the first pole region and the second pole region. In addition, the first pole region, the neutral region and the second pole region may be arranged in sequence along the optical axis direction in the first magnet 1252a. Similarly, the first pole region, the neutral region and the second pole region may be arranged in sequence along the optical axis direction in the second magnet 1252b. In addition, in the first magnet 1252a and the second magnet 1252b, the first pole region may be an N pole. In addition, in the first magnet 1252a and the second magnet 1252b, the second pole region may be an S pole. Vice versa.

[0546] In an embodiment, Fig.28 The diagram illustrates the positions of the first lens assembly 1222a and the second lens assembly 1222b in the second camera actuator in the wide-angle state. For example, the wide-angle state refers to a state in which the second camera actuator provides a minimum magnification for an object. To this end, the first lens assembly 1222a can be moved to the maximum extent along the optical axis. Alternatively, the first magnet 1252a can be moved to the maximum extent along the optical axis direction (Z-axis direction). Alternatively, the first magnet 1252a can have a maximum moving distance in the optical axis direction (Z-axis direction). Different from the illustrated position, the second lens assembly 1222b can be set at various positions for autofocus.

[0547] In the wide angle or wide angle state, the first lens assembly 1222a may be adjacent to the second stopper ST2a, and the second lens assembly 1222b may be adjacent to the second stopper ST2b. That is, the spacing distance between the first lens assembly 1222a and the first stopper ST1a may be greater than the spacing distance between the first lens assembly 1222a and the second stopper ST2a. In addition, the spacing distance between the second lens assembly 1222b and the first stopper ST1b may be greater than the spacing distance between the second lens assembly 1222b and the second stopper ST2b.

[0548] In the wide angle state, that is, when the first magnet 1252a is maximally moved along the optical axis direction, the first pole region of the first magnet 1252a may be disposed to overlap the first area SA1 in the second direction or a direction perpendicular to the optical axis direction.

[0549] In addition, in a wide angle, the second area SA2 of the first yoke YK1 may overlap with the first pole area of ​​the first magnet 1252a in the second direction. In addition, the second area SA2 of the second yoke YK2 may overlap with the first pole area of ​​the second magnet 1252b in the second direction.

[0550] As a modified example, the second area SA2 of the first yoke YK1 may overlap the first pole area and the neutral area NA1 of the first magnet 1252a in the second direction. In addition, the second area SA2 of the second yoke YK2 may overlap the first pole area of ​​the second magnet 1252b in the second direction.

[0551] Reference Fig.29 As described above, in the second camera actuator, the first yoke YK1 may be disposed adjacent to the first coil 1251a. In addition, the second yoke YK2 may be positioned adjacent to the second coil 1251b. In addition, the first yoke YK1 may be positioned adjacent to the first magnet 1252a. In addition, the second yoke YK2 may be positioned adjacent to the second magnet 1252b.

[0552] In addition, the driving coil according to the embodiment may include a hollow portion. In the embodiment, the first coil 1251a may include a first coil hollow portion 1251ah. In addition, the second coil 1251b may include a second coil hollow portion 1251bh.

[0553] In this case, the second area SA2 of the yoke unit may not overlap with the hollow portion (the first coil hollow portion and the second coil hollow portion). That is, the second area SA2 of the yoke unit may be positioned to be misaligned with the hollow portion (the first coil hollow portion and the second coil hollow portion) in the second direction. In addition, the second area SA2 of the yoke unit may be positioned closer to the first camera actuator than the hollow portion (the first coil hollow portion and the second coil hollow portion). That is, the second area SA2 of the yoke unit may be arranged to be farther from the image sensor than the hollow portion (the first coil hollow portion and the second coil hollow portion).

[0554] In an embodiment, Fig.29 The positions of the first lens assembly 1222a and the second lens assembly 1222b in the second camera actuator in the telephoto state are illustrated. For example, the telephoto state refers to a state in which the second camera actuator provides maximum magnification for the object. To this end, the first lens assembly 1222a can be moved to the maximum extent in a direction opposite to the optical axis direction. Alternatively, the first magnet 1252a can be moved to the maximum extent in a direction opposite to the optical axis direction (Z-axis direction). Alternatively, the first magnet 1252a can have a maximum moving distance in a direction opposite to the optical axis direction (Z-axis direction). However, unlike the illustrated position, the second lens assembly 1222b can be set at various positions for autofocus.

[0555] In the telephoto or telephoto state, the first lens assembly 1222a may be adjacent to the first stopper ST1a, and the second lens assembly 1222b may be adjacent to the first stopper ST1b. That is, the spacing distance between the first lens assembly 1222a and the first stopper ST1a may be smaller than the spacing distance between the first lens assembly 1222a and the second stopper ST2a. In addition, the spacing distance between the second lens assembly 1222b and the first stopper ST1b may be smaller than the spacing distance between the second lens assembly 1222b and the second stopper ST2b.

[0556] In addition, in telephoto, the second area SA2 of the first yoke YK1 may overlap with the first pole area and the neutral area NA1 of the first magnet 1252a in the second direction. In addition, the second area SA2 of the second yoke YK2 may overlap with the first pole area and the neutral area NA2 of the second magnet 1252b in the second direction.

[0557] In addition, in telephoto, the second area SA2 of the first yoke YK1 may not overlap with the second pole area of ​​the first magnet 1252a in the direction perpendicular to the optical axis direction or in the second direction (Y-axis direction).

[0558] In addition, the length YS2 of the second area SA2 of the first yoke YK1 is equal to the length YS2 of the second area SA2 of the second yoke YK2. In addition, the length YS1 of the first area SA1 of the first yoke YK1 is equal to the length YS1 of the first area SA1 of the second yoke YK2.

[0559] Furthermore, based on telephoto, the length YS2 of the second area SA2 of the first yoke YK1 may be greater than the length of an overlapping area between the second area SA2 and the first pole area in the optical axis direction.

[0560] In addition, the length YS2 of the second area SA2 of the first yoke YK1 may be smaller than the sum of the length of the overlapping area between the second area SA2 and the first pole area in the optical axis direction and the length of the neutral area in the optical axis direction.

[0561] In addition, the length of the first pole region may be the same as or different from the length of the second region SA2. For example, the length of the first pole region in the direction of the optical axis may be less than the length of the second region SA2. Therefore, the magnetism generated from the first pole region can be easily blocked by the second region SA2. Alternatively, the length of the first pole region in the direction of the optical axis may be greater than the length of the second region SA2. Therefore, the actuator can provide an improved driving force. In addition, the length YS2 of the second region SA2 may be less than the length of the first magnet 1252a in the direction of the optical axis.

[0562] In addition, based on telephoto, a boundary area between the first area SA1 and the second area SA2 may overlap with the neutral area NA in the second direction.

[0563] As a modified example, the second area SA2 of the second yoke YK2 may overlap with the first pole area of ​​the second magnet 1252b in the second direction.

[0564] Reference Fig.30 , the second lens assembly can be moved by increasing the current in the second coil. Fig.30 and Fig.31 In the embodiment, the target position refers to the position or set position (or desired position) of the second lens assembly relative to the coil current. In addition, the Hall sensor output is the output value of the Hall sensor of the second lens assembly and refers to the actual position of the second lens assembly. In addition, Fig.30 and Fig.31 The state in which the position of the first lens assembly is fixed or hardly moves is illustrated.

[0565] As described above, when the structure with different thicknesses is not applied to the yoke unit, it can be seen that the target position or set position increases in response to the coil current (excluding the stopper area). However, there is a section where the actual position of the second lens assembly does not change in response to the coil current. That is, when the second lens assembly is adjacent to the first lens assembly, the size difference between the actual position and the target position or set position may increase or may be greater than a predetermined difference. That is, when the yoke unit does not have a second region as in the embodiment, due to the magnetic field interference between the first magnet and the second magnet, the second lens assembly or the first lens assembly may be driven differently from the applied coil current. That is, there is a problem of an increase in the gap between the target position and the actual position. Alternatively, there is a section where the actual position does not change corresponding to the target position.

[0566] In contrast, refer to Fig.31 , when the yoke unit includes the second region and the first region as in the present embodiment (see Fig.28 and Fig.29 ), it can be seen that the target position or the set position increases in response to the coil current. In addition, it can be seen that the actual position of the second lens assembly moves in response to the coil current. That is, when the second lens assembly is adjacent to the first lens assembly, the size difference between the actual position and the target position or the set position can remain unchanged or can be less than a predetermined difference. That is, the yoke unit according to the embodiment can suppress the second lens assembly or the first lens assembly from being driven differently from the applied coil current due to the magnetic field interference between the first magnet and the second magnet. That is, the yoke unit can reduce the above-mentioned magnetic field interference, thereby suppressing the increase in the gap between the target position and the actual position.

[0567] Fig.32 is a perspective view in which a circuit board, a first camera actuator, and a second camera actuator are separated according to another embodiment.

[0568] In the camera module according to the embodiment, the first camera actuator 1100, the second camera actuator 1200 and the circuit board or main board unit 1300 may be arranged in sequence along one direction or the optical axis direction (Z-axis direction). Therefore, the second camera actuator 1200 may be positioned at the rear end of the first camera actuator 1100.

[0569] In addition, the first camera actuator 1100 and the second camera actuator 1200 may have surfaces facing each other. For example, the first surface of the first camera actuator 1100 and the second surface of the second camera actuator 1200 will be described as facing each other. In addition, the first surface may correspond to the outer surface of the side portion of the housing described above or to the rear surface of the first camera actuator 1100. In addition, the second surface may be the front surface of the second camera actuator 1200 or the front surface of the third lens assembly. A bonding member or the like may be applied to the first surface and the second surface. In addition, the first surface and the second surface may be coupled by a protrusion and groove structure. Therefore, the first camera actuator 1100 and the second camera actuator 1200 may be coupled. That is, the first camera actuator 1100 and the second camera actuator 1200 may be coupled directly or indirectly by various methods.

[0570] Fig.33a is a perspective view of a circuit board, a first driving unit (excluding some parts), and a second driving unit (excluding some parts) according to an embodiment, Figure 33b is a conceptual diagram for describing the connection of a circuit board, a first driving unit (excluding some parts), and a second driving unit (excluding some parts) according to an embodiment, Fig.33c is a conceptual diagram illustrating connection of a circuit board, a first driving unit (excluding some parts), and a second driving unit (excluding some parts) according to a modified example, Fig.33d is a conceptual diagram illustrating connections between a circuit board, a first driving unit (excluding some parts), and a second driving unit (excluding some parts) according to another embodiment, and Fig.33e is a conceptual diagram illustrating connections among a circuit board, a first driving unit (excluding some parts), and a second driving unit (excluding some parts) according to still another embodiment.

[0571] Reference Fig.33a, the main board unit (corresponding to a "circuit board") 1300 according to an embodiment may surround at least a portion of the side surface of the second camera actuator described above. For example, at least a portion of the main board unit 1300 may overlap with the side surface of the second camera actuator or the side surface of the first camera actuator in the horizontal direction (Y-axis direction or second direction).

[0572] In addition, the second board unit 1270 according to the embodiment may be provided on the side surface of the second camera actuator. For example, the second board unit 1270 may be in contact with the side surface (eg, the second housing) of the second camera actuator.

[0573] In addition, the first plate portion 1154 according to an embodiment may be provided on a side surface of the first camera actuator. For example, the first plate portion 1154 may be in contact with a side surface (eg, first housing) of the first camera actuator.

[0574] Specifically, the image sensor may be mounted on the main board unit 1300. The main board unit 1300 may include a first unit main board 1310 overlapping the second camera actuator (or the first camera actuator) in the optical axis direction (Z-axis direction) and a second unit main board 1320 extending from the first unit main board 1310 to the side surface of the second camera actuator. Additionally, the main board unit 1300 may further include a third unit main board (not shown) extending to both side surfaces of the second camera actuator. The third unit main board (not shown) may be positioned to face the second unit main board 1320 with respect to the optical axis.

[0575] First, the image sensor and the sensor base may be disposed on the first unit main board 1310 .

[0576] In addition, at least one of the second unit main board 1320 and the third unit main board (not shown) according to the embodiment may extend in the optical axis direction to surround the first camera actuator. For example, the second unit main board 1320 and the third unit main board (not shown) may at least partially overlap with the first camera actuator in the horizontal direction or the second direction (Y-axis direction). Alternatively, the second unit main board 1320 and the third unit main board (not shown) may also overlap with the second camera actuator only in the horizontal direction.

[0577] Hereinafter, the second unit main board 1320 may extend in the optical axis direction to partially surround the first camera actuator. Therefore, at least a portion of the second unit main board 1320 may overlap with the first camera actuator in the second direction (Y-axis direction).

[0578] Any one of the second unit main board 1320 and the third unit main board (not shown) may be connected to the connector unit CN. Figures 33b to 33eIn addition, description will be made based on the main board unit 1300 including the first unit main board 1310 and the second unit main board 1320 .

[0579] In addition, the second unit main board 1320 may be connected to the end of the first unit main board 1310 to extend in the optical axis direction or the third direction (Z-axis direction). That is, the second unit main board 1320 may be bent from the main board unit 1300 and may extend in the third direction. Therefore, as described above, the second unit main board 1320 may overlap with the second camera actuator in the horizontal direction (Y-axis direction).

[0580] The first unit main board 1310 and the second unit main board 1320 may have an integrated structure or a separated structure. In an embodiment, the first unit main board 1310 and the second unit main board 1320 may include an integrated common board (a common board FP to be described below). In addition, each of the first unit main board 1310 and the second unit main board 1320 may include separate boards RP1 to RP4.

[0581] In an embodiment, the first unit main board 1310 and the second unit main board 1320 may be formed of a plurality of layers. In addition, the first unit main board 1310 and the second unit main board 1320 may have holes therein for circuit patterns or may be formed of a plurality of layers. That is, the first unit main board 1310 may have a structure in which a separate board, a common board, and a separate board are stacked. That is, the second unit main board 1320 may also have a structure in which a separate board, a common board, and a separate board are stacked. In this case, the separate board and the common board may have circuit patterns therein and may be formed of a single layer or a plurality of layers.

[0582] For example, the first unit main board 1310 and the second unit main board 1320 may have a rigid PCB and a flexible PCB arranged in a plurality of layers.

[0583] As a modified example, the first unit main board 1310 may have a structure in which a flexible PCB, a rigid PCB, and a flexible PCB are stacked in sequence. In addition, in the first unit main board 1310 and the second unit main board 1320, a reinforcing material or a reinforcing plate may be additionally provided in the area where the flexible PCB is provided. For example, the reinforcing plate may be additionally provided on the upper portion or the lower portion of the first unit main board 1310.

[0584] In addition, in the specification, the first unit main board and the second unit main board may include a common board which is a flexible PCB. In addition, in the first unit main board and the second unit main board, the rigid PCB may be disposed at an inner side and / or an outer side of the flexible PCB.

[0585] In addition, the second board unit 1270 may include a first board 1271 and a second board 1272. The first board 1271 may face the second unit main board 1320 and may overlap the second unit main board 1320 in a horizontal direction.

[0586] In addition, that is, the second camera actuator may include a first board and a second board. In this case, the first board of the second camera actuator may correspond to the main board unit 1300 to be described below. In addition, the second board of the second camera actuator may correspond to the second board unit 1270.

[0587] Therefore, in the second camera actuator, the first board may include a first unit board and a second unit board. Here, the first unit board of the first board (main board unit) may correspond to the first unit main board 1310 or the first circuit board unit. In addition, the second unit board of the first board (main board unit) may correspond to the second unit main board 1320 or the second circuit board unit.

[0588] In addition, in the second camera actuator, the second board may include a first unit board and a second unit board. Here, the first unit board of the second board (second board unit) may correspond to the "first board 1271". In addition, the second unit board of the second board (second board unit) may correspond to the "second board 1272".

[0589] Therefore, the second plate can overlap in a direction perpendicular to the optical axis direction. That is, the second plate can be formed by a first unit plate and a second unit plate (first plate 1271 and second plate 1272) overlapping each other in a direction perpendicular to the optical axis (eg, the second direction).

[0590] Therefore, in the second camera actuator, the first board (main board unit) can be positioned on the first side surface and the second side surface (and / or the second side surface). In addition, the second board (second board unit) can be positioned on the second side surface and the third side surface.

[0591] In addition, the first plate 1271 and the second plate 1272 can be spaced apart from the first unit main board 1310 in the optical axis direction. Therefore, the size of the sensor base and the like provided on the first unit main board 1310 can be ensured. In addition, since the sensor base becomes larger, the components mounted on the first unit main board 1310 may not be exposed to the outside. That is, the reliability of the circuit components can be improved. In addition, since the size of the first plate 1271 and the second plate 1272 can be reduced, the size and weight of the camera module can be reduced.

[0592] The first plate 1271 and the second plate 1272 may be symmetrically arranged with respect to the optical axis or the optical axis direction. In addition, the first plate 1271 and the second plate 1272 may be electrically connected to the first coil and the second coil, respectively. In addition, the first plate 1271 may be arranged on a side surface of the second camera actuator.

[0593] In addition, the second board unit 1270 may include a board connecting member 1273 (see Fig.36a ). Therefore, the reliability of the first board 1271 and the second board 1272 can be improved.

[0594] The first board portion 1154 may include a first sub-board 1154 a disposed on a lower surface of the first camera actuator, and second and third sub-boards 1154 b and 1154 c each disposed on one of side surfaces of the first camera actuator.

[0595] As described above, the first sub-board 1154a may be disposed on a lower portion of the first camera actuator and may at least partially overlap the first camera actuator in the first direction (X-axis direction).

[0596] The second sub-board 1154b and the third sub-board 1154c may surround the side surface of the first camera actuator. In addition, the second sub-board 1154b and the third sub-board 1154c may at least partially contact the side surface of the first camera actuator.

[0597] The second sub-board 1154b and the third sub-board 1154c can be symmetrically arranged with respect to the optical axis or the optical axis direction. The second sub-board 1154b can be arranged adjacent to the first housing side portion described above. In addition, the third sub-board 1154c can be arranged adjacent to the second housing side portion described above.

[0598] In addition, the second sub-board 1154b may be disposed adjacent to the first board 1271. For example, at least a portion of the second sub-board 1154b may overlap the first board 1271 in the optical axis direction. Alternatively, the second sub-board 1154b may be positioned at an outer portion of the first board 1271 relative to the optical axis.

[0599] In addition, the third sub-board 1154c may be disposed adjacent to the second board 1272. For example, at least a portion of the third sub-board 1154c may overlap the second board 1272 in the optical axis direction. Alternatively, the third sub-board 1154c may be positioned at an outer side of the second board 1272 relative to the optical axis.

[0600] In addition, at least a portion of the second sub-board 1154b may be in contact with the second unit main board 1320. In addition, the second sub-board 1154b may be surrounded by the second unit main board 1320.

[0601] In addition, the second camera actuator may include a first board 1271 having a second terminal unit. The second terminal unit may be welded to the first terminal unit of the second unit main board 1320 to be described below. That is, in the second camera actuator, the second board (second board unit) may have a first unit board (first board) and a second unit board (second board). In addition, a plurality of terminals (first terminal units) may be included in one area of ​​the first board (first unit board) provided on the second side surface. In addition, a plurality of pads (corresponding to the second terminal unit) may be included in one area of ​​the second board (second board of the second board unit).

[0602] Therefore, the image sensor may be positioned on the first unit board of the first board (main board).In addition, the second unit board of the first board may be connected to the first unit board and may include a plurality of terminals (first terminal unit).

[0603] In addition, the first unit plate of the second board (second board unit) may be positioned on the first side surface of the second actuator. In addition, the second unit plate of the second board may be connected to the first unit plate and may include a plurality of pads (second terminal unit).

[0604] Therefore, as will be described below, the second unit board (second unit main board) of the first board and the second unit board (second board) of the second board (second board unit) can overlap each other in a direction perpendicular to the optical axis (e.g., the second direction).

[0605] In addition, at least some of the plurality of terminals (first terminal units) on the second unit board of the first board may correspond to at least some of the plurality of pads (second terminal units) on the second unit board of the second board.

[0606] In addition, as disclosed herein, at least one of the first unit plate and / or the second unit plate of the first plate and at least one of the first unit plate and / or the second unit plate of the second plate can be connected by welding. Here, any one of the first unit plate and / or the second unit plate of the first plate and any one of the first unit plate and / or the second unit plate of the second plate can correspond to each other in position. For example, any one of the first unit plate and / or the second unit plate of the first plate and any one of the first unit plate and / or the second unit plate of the second plate can be positioned to face each other. For example, the first unit plate of the first plate (including a plurality of terminals or first terminal units) and the first unit plate of the second plate (including a plurality of pads or second terminal units) can be connected by welding. Alternatively, the second unit plate of the first plate (including a plurality of terminals or first terminal units) and the second unit plate of the second plate (including a plurality of pads or second terminal units) can be connected by welding.

[0607] That is, any one of the first board 1271 and the second board 1272 may include a second terminal unit. The second terminal unit may be provided on each or any one of the first board 1271 and the second board 1272. For example, the first board 1271 of the second camera actuator may include a second terminal unit. In addition, the plurality of sub-boards of the first actuator described above may include a fourth terminal unit.

[0608] In the following, except Figures 33b to 33e In addition, the description will be made based on the first board 1271 including the second terminal unit. In addition, hereinafter, the description will be made based on any one of the plurality of first sub-boards as the second sub-board 1154b, and the second sub-board 1154b includes the fourth terminal unit.

[0609] In addition, the second unit main board 1320 may include a first terminal unit and a third terminal unit. The first terminal unit may be positioned to correspond to the second terminal unit. In addition, the third terminal unit may be positioned to correspond to the fourth terminal unit. In addition, the first terminal unit may be welded to the second terminal unit. That is, a plurality of terminals (first terminal units) arranged on an area of ​​the first board (main board) (e.g., on the second side surface) and a plurality of pads (second terminal units) arranged on an area of ​​the second board (second board unit) (e.g., on the second side surface) may be welded. In an embodiment, at least some of the first terminal units in the first terminal unit may be welded to at least some of the second terminal units in the second terminal unit. In addition, the first terminal unit may be electrically connected to the second terminal unit. In addition, the third terminal unit may be welded to the fourth terminal unit. Therefore, the third terminal unit and the fourth terminal unit may be electrically connected.

[0610] In addition, the second terminal unit may be provided on at least one of the first plate 1271 and the second plate 1272. In various embodiments below, in various cases, the second terminal unit may be provided on the first plate 1271 or the second plate 1272. In addition, the first plate 1271 and the second plate 1272 may be electrically connected via a connecting plate. Fig.33d or Fig.33e As illustrated in FIG. 1 , the second terminal unit SG2 may be provided on the first board 1271 or the second board 1272. In addition, the first terminal unit SG1 may be provided on at least one of the second unit main board 1320 and the third unit main board 1330, correspondingly.

[0611] Further references Figure 33b, the second unit main board 1320 can extend along the optical axis direction to correspond to or face the first sub-board 1154a. At least a portion of the second unit main board 1320 can overlap with the first sub-board 1154b in the horizontal direction (Y-axis direction). In addition, the third unit main board 1330 can be arranged to correspond to the second board 1272. Therefore, the third unit main board 1330 can extend to the area corresponding to the second board 1272. Therefore, the length of the second unit main board 1320 in the optical axis direction can be greater than or equal to the length of the third unit main board 1330 in the optical axis direction.

[0612] In addition, in the present embodiment, the first terminal unit SG1 and the third terminal unit SG3 may be provided on the second unit main board 1320. In addition, the first terminal unit SG1 may also be provided on the third unit main board 1330.

[0613] In addition, the first terminal unit SG1 may be electrically connected to the second terminal unit SG2 on the first board 1271 or the second board 1272 by welding.

[0614] In addition, in the present embodiment, at least six first terminal units and second terminal units may be formed.

[0615] In addition, each of the plurality of terminals may correspond to a pad in the plurality of pads. Therefore, the number of the plurality of terminals or the plurality of pads may be equal to the number of welding operations. In addition, in order to facilitate the connection or connection, the cross-sectional area of ​​the plurality of pads may be greater than the cross-sectional area of ​​the plurality of terminals. In addition, the plurality of terminals may include grooves formed in some areas.

[0616] In addition, at least some of the plurality of terminals may overlap with the plurality of pads in a direction perpendicular to the optical axis. Therefore, electrical reliability may be improved.

[0617] A plurality of terminals may be arranged along the optical axis, and a plurality of pads may be arranged along the optical axis.

[0618] In addition, as described above, the second unit main board 1320 may include a third terminal unit SG3 coupled or welded to the fourth terminal unit SG4. In this case, at least a portion of the second unit main board 1320 may overlap with the first sub-board 1154b in the optical axis direction. In addition, the first sub-board 1154b may include a fourth terminal unit SG4. In addition, the third terminal unit SG3 and the fourth terminal unit SG4 may be coupled and electrically connected by welding.

[0619] Therefore, the fourth terminal unit SG4, the third terminal unit SG3, and the first terminal unit SG1 (or the second terminal unit SG2) may be sequentially arranged along the optical axis direction (Z-axis direction).

[0620] In addition, as described above, in the specification, the first terminal unit SG1 may be electrically connected to the second terminal unit SG2, and the third terminal unit SG3 may be electrically connected to the fourth terminal unit SG4. The following description may be applied to such electrical connections.

[0621] Reference Fig.33c As a modified example, the fourth terminal unit SG4 of the first sub-board 1154b may be positioned to correspond to the third terminal unit SG3 of the second unit main board 1320. In addition, the second terminal unit SG2 may be provided on the first board 1271.

[0622] In this case, the second unit main board 1320 may be a portion bent from the first unit main board 1310 on which the image sensor is disposed and extended in the optical axis direction. Therefore, the second unit main board 1320 may be a second main board, and the first unit main board 1310 may be a first main board.

[0623] In addition, as described above, the second unit main board 1320 may include a third terminal unit SG3 formed at a position corresponding to the fourth terminal unit SG4 and a first terminal unit SG1 formed at a position corresponding to the second terminal unit SG2. That is, the main board can be simply designed. In this example, both the first terminal unit SG1 and the third terminal unit SG3 can be arranged on the second unit main board 1320 arranged at one side of the first unit main board 1310 without the third unit main board described above. Therefore, the manufacturing cost of the main board, etc. can be easily reduced. The content of the description applied to the specification can be applied to other content in the same manner.

[0624] Reference Fig.33d In another embodiment, the fourth terminal unit SG4 of the first sub-board 1154b may be positioned to correspond to the third terminal unit SG3 of the second sub-board 1320. In addition, the second terminal unit SG2 may be provided on the second board 1272.

[0625] That is, the second terminal unit may not be positioned on the first board 1271. In addition, the second terminal unit SG2 may be provided on the second board 1272 and the first terminal unit SG1 may be provided on the third unit main board 1330. The first terminal unit SG1 may be positioned to correspond to the second terminal unit SG2.

[0626] In addition, the second terminal unit SG2 may be welded or coupled to the first terminal unit SG1 or connected to the first terminal unit SG1 through a connector, etc. Hereinafter, the contents applied to the description of the specification may be applied to other contents in the same manner.

[0627] Reference Fig.33eIn yet another embodiment, the fourth terminal unit SG4 of the first sub-board 1154b may be positioned to correspond to the third terminal unit SG3 of the second sub-board 1320. In addition, the second terminal unit SG2 may be provided on the first board 1271.

[0628] That is, the second terminal unit may be positioned on the first plate 1271. In addition, the second terminal unit may not exist on the second plate 1272.

[0629] In addition, the second terminal unit SG2 may be disposed on the first board 1271 and the first terminal unit SG1 may be disposed on the second unit main board 1320. The first terminal unit SG1 may be located to correspond to the second terminal unit SG2.

[0630] In addition, the third terminal unit SG3 may be positioned on the first sub plate 1154b of the first actuator.

[0631] In this example, with Fig.33c Differently, the fourth terminal unit SG4 may overlap the third terminal unit SG3 in the optical axis direction. In addition, the second sub-board 1154b may overlap the second unit main board 1320 in the optical axis direction. At least a portion of the second sub-board 1154b may be positioned outside the first board 1271 relative to the optical axis.

[0632] Therefore, in the above-mentioned various embodiments, the first actuator may be coupled to the optical member (prism) and the second actuator may be coupled to the lens. However, conversely, depending on the structure, the first actuator may be coupled to the lens and the second actuator may be coupled to the prism.

[0633] In addition, the first terminal unit SG1 may include a groove that exposes a portion of the second terminal unit SG2. For example, the first terminal unit SG1 may have a notch structure. In addition, the first terminal unit SG1 may include a conductive exposed area. The conductive exposed area may be electrically connected to a circuit pattern in the board. In addition, the exposed area may be made of metal. For example, the exposed area may be made of copper foil.

[0634] In addition, when the third terminal unit SG3 and the fourth terminal unit SG4 overlap each other in the horizontal direction (Y-axis direction), the third terminal unit SG3 may include a groove that exposes a portion of the fourth terminal unit SG4. Alternatively, each of the third terminal unit SG3 and the fourth terminal unit SG4 may have an exposed conductive area.

[0635] In addition, the above-mentioned electrical connection between the terminal units can be carried out through a conductive member or an electrically conductive member. For example, the second terminal unit can be connected to the first terminal unit through an electrically conductive member. This can be applied to the third terminal unit and the fourth terminal unit in the same manner.

[0636] As another example, the corresponding terminal units may also be connected via connectors.

[0637] Fig.34 is a plan view of a circuit board, a first driving unit (excluding some parts), and a second driving unit (excluding some parts) according to an embodiment.

[0638] According to an embodiment, as described above, the main board unit 1300 may include a sensor base SB disposed on the first unit main board 1310. In addition, an image sensor may be disposed in the sensor base SB. The image sensor may be mounted on the first unit main board 1310.

[0639] In addition, the second unit main board 1320 connected to the first unit main board 1310 and extending in the optical axis direction may be positioned at an outer side of the first board 1271 .

[0640] In this case, the first plate 1271 may be coupled with the second unit main board 1320 through a yoke unit positioned at an outer portion thereof interposed between the first plate 1271 and the second unit main board 1320. As a coupling member for such coupling, an adhesive made of various materials such as epoxy resin may be used.

[0641] In addition, the first plate 1271 according to the embodiment may be arranged to be spaced apart from the sensor base SB in the optical axis direction. For example, a first spacing distance gapa may be formed between the first plate 1271 and the sensor base SB. In addition, the first plate 1271 may be arranged to be spaced apart from the first unit main board 1310 in the optical axis direction. For example, a second spacing distance gapb may be formed between the first plate 1271 and the first unit main board 1310 along the optical axis direction.

[0642] In addition, the first gap distance gapa may be smaller than the second gap distance gapb.

[0643] In addition, the description of the first plate 1271 may also be applied in the same manner to the second plate 1272. That is, the second plate 1272 may be disposed to be spaced apart from the sensor base SB and the first unit main board 1310.

[0644] By this configuration, the size of the sensor base SB can be easily increased. In addition, more circuit elements on the first unit main board 1310 can be protected by being installed in the sensor base SB. In addition, the size of the first board (or the second board) can be reduced, thereby achieving miniaturization.

[0645] In addition, a portion of the first plate 1271 may overlap with the sensor base SB in the optical axis direction. Therefore, the second camera actuator can be miniaturized.

[0646] In addition, the plurality of sub-boards of the first actuator may not overlap with the second unit main board 1320 in the horizontal direction (Y-axis direction).

[0647] In addition, the second unit main board 1320 and the plurality of sub-boards (hereinafter referred to as "second sub-board 1154b") may overlap at least partially along the optical axis direction (Z-axis direction). In addition, at least one of the plurality of sub-boards may have a fourth terminal unit. For example, the second sub-board 1154b may include the fourth terminal unit. Therefore, the third terminal unit and the fourth terminal unit may be easily connected by welding.

[0648] As another example, a plurality of sub-boards, that is, the second sub-board 1154b may overlap in the horizontal direction (Y-axis direction) with the second unit main board 1320. Therefore, the third terminal unit and the fourth terminal unit may be more easily coupled by welding.

[0649] In this case, at least a portion of the second unit main board 1320 may be positioned outside the second sub board 1154b with respect to the optical axis.

[0650] In addition, the end 1320ea of ​​the second unit main board adjacent to the first actuator may be positioned inside the end portion 1320eb of the second unit main board in contact with the first unit main board. For example, the distance between the end 1320ea of ​​the second unit main board adjacent to the first actuator and the first coil 1251a may be greater than the distance between the end portion 1320eb of the second unit main board in contact with the first unit main board and the first coil 1251a. Alternatively, the end 1320ea of ​​the second unit main board adjacent to the first actuator and the end portion 1320eb of the second unit main board in contact with the first unit main board may have a spacing distance gapc in the horizontal direction.

[0651] That is, the second unit main board 1320 may have a structure closer to the optical axis in a direction opposite to the optical axis.

[0652] In addition, in an embodiment, the first board 1271 and the second board 1272 may be positioned in a region between the first sub-board 1154 a and the second sub-board 1154 b as a plurality of sub-boards.

[0653] In addition, the first plate 1271 may overlap with the first coil 1251a in the optical axis direction (Z-axis direction) and the second plate 1272 may overlap with the second coil 1152b in the optical axis direction (Z-axis direction).

[0654] In addition, the first coil 1251a and the second coil 1251b may be at least partially positioned in a region between the first coil 1251a and the second coil 1152b. In addition, the first coil 1251a and the second coil 1251b may at least partially overlap with the first coil 1251a and the second coil 1152b, respectively, in the optical axis direction.

[0655] For example, a distance Laa between the first coil 1251a and the second coil 1152b in the horizontal direction (Y-axis direction) may be greater than a distance Lab between the first coil 1251a and the second coil 1251b in the horizontal direction.

[0656] In addition, the first yoke may overlap with the first coil 1251a in the optical axis direction. In addition, the second yoke may overlap with the second coil 1152b in the optical axis direction.

[0657] Fig.35a shows a perspective view and a plan view of a circuit board according to an embodiment, Fig.35b is a side view of a circuit board according to an embodiment, Fig.35c is a rear view of a circuit board according to an embodiment, Fig.35d is a front view of a circuit board according to an embodiment, Fig.35e is an internal development plan view of a circuit board according to an embodiment, and Figure 35f is an external developed plan view of a circuit board according to an embodiment.

[0658] Reference Fig.35a , the second unit main board 1320 may be connected to the connector unit CN. The camera module may be connected to an element (eg, a processor) in the terminal through the connector unit CN. The connection element of the connector unit CN may be disposed at various positions and may have various shapes.

[0659] As described above, the first unit main board 1310 may include the common board FP and the individual boards RP1 and RP2 located at the inner and / or outer portions of the common board.

[0660] Hereinafter, specifically, the first separate board RP1 may be positioned at an outer side of the common board FP in the first unit main board 1310. In addition, the second separate board RP2 may be positioned at an inner side of the common board FP of the first unit main board 1310.

[0661] The first unit main board 1310 may have rigidity in a region where the sensor base SB, the image sensor, and the like are disposed by the first and second separate boards RP1 and RP2.

[0662] In addition, the second unit main board 1320 may include a common board FP and separate boards RP3 and RP4 positioned at an inner side and / or an outer side of the common board.

[0663] The third separate board RP3 may be positioned at an outer side portion of the common board FP in the second unit main board 1320. In addition, the second separate board RP4 may be positioned at an inner side portion of the common board FP of the second unit main board 1320.

[0664] As described above, the first unit main board 1310 and the second unit main board 1320 may include the common board FP in common. The common board may be an integrated type.

[0665] In addition, the fourth separate plate RP4 may face the first yoke or the first plate described above.

[0666] Reference Fig.35b , the second unit main board 1320 may include a first terminal unit SG1. In this case, the first terminal unit SG1 may be positioned on one layer of the second unit main board 1320. For example, the first terminal unit SG1 may be positioned on the outermost layer of the second unit main board 1320. Therefore, the first terminal unit SG1 may be positioned on the third separate board RP3. Therefore, some areas of the third separate board RP3 may be exposed. In addition, the exposed area may be made of a conductive material as described above.

[0667] In addition, the lengths of the third separate plate RP3 and the fourth separate plate RP4 in the optical axis direction may be smaller than the length of the common plate FP in the optical axis direction.

[0668] The common plate FP may extend to be adjacent to the first actuator. In addition, the third terminal unit SG3 may be positioned on the common plate FP. Therefore, the first terminal unit SG1 may be positioned outside the third terminal unit SG3 with respect to the optical axis.

[0669] In addition, each of the first terminal unit SG1 and the third terminal unit SG3 may be positioned on a different layer of the second unit main board 1320 .

[0670] In addition, a plurality of first terminal units SG1 may be formed and arranged along the optical axis direction. In addition, a plurality of third terminal units SG3 may be formed and arranged along the first direction or the vertical direction (X-axis direction).

[0671] Therefore, the arrangement directions of the first terminal unit SG1 and the third terminal unit SG3 may be different from each other. Therefore, each of the first terminal unit SG1 and the third terminal unit SG3 may be easily welded.

[0672] Furthermore, since the first terminal unit SG1 is positioned at the outer side of the second unit main board 1320, the welding operation can be easily performed. Furthermore, the first terminal unit SG1 can also be positioned at the corner of the third separate board RP3. Therefore, the welding operation can be more easily performed.

[0673] In addition, the second unit main board 1320 may include a first side surface area RA1, a first connection area BA1, and a second connection area BA2. The first side surface area RA1 may correspond to an area in which a separate board is positioned. In addition, the first connection area BA1 may be positioned between the first side surface area RA1 and the first unit main board 1310. In addition, the second connection area BA2 may be an area adjacent to the first actuator.

[0674] The first terminal unit SG1 may be positioned in the first side surface area RA1. In addition, the third terminal unit SG3 may be positioned in the second connection area BA2.

[0675] The first side surface area RA1 according to the embodiment may overlap the fourth coil and the fifth coil in the second direction (Y-axis direction) In addition, the second unit main board 1320 may not overlap the first coil and the second coil in the horizontal direction.

[0676] In addition, the first connection area BA1, the first side surface area RA1, and the second connection area BA2 may be sequentially positioned in a direction opposite to the optical axis direction.

[0677] The first side surface area RA1 may also include a material different from that of the first connection area BA1 and the second connection area BA2. Alternatively, as described above, the first connection area BA1 and the second connection area BA2 may be formed by a flexible PCB instead of a rigid PCB. Alternatively, the first connection area BA1 and the second connection area BA2 may be more flexible than the first side surface area RA1. The area made of a flexible board may correspond to a flexible area (or a connection area), and the area including a rigid board may correspond to a rigid area (side surface area). For example, the first connection area BA1 and the second connection area BA2 are flexible PCBs (FPCBs), and the first side surface area RA1 may be a rigid PCB (RPCB) or may be an area on the FPCB where an RPCB is additionally provided. By this configuration, since the FPCB absorbs shocks, etc., it is possible to prevent the above-described boards (circuit boards, first board units, and second board units) of the camera module according to the embodiment from being disconnected or separated due to the movement of the electronic device, such as vibration. In addition, the second connection area BA2 may also have an inward step-shaped portion. Therefore, the coupling strength between the first actuator and the second actuator and the main board (e.g., the second unit main board) may be increased.

[0678] In addition, the first and second connection areas BA1 and BA2 according to the embodiment may have a stepped portion with the first side surface area RA1. For example, the first and second connection areas BA1 and BA2 may be spaced apart from the first side surface area RA1 by a predetermined distance in the second direction (Y-axis direction).

[0679] Reference Fig.35c , a heat sink HD may be additionally provided on the first unit main board 1310. The heat sink may be positioned at the outer side of the common board FP. For example, the heat sink HD may be positioned at the outer side of the first individual board RP1. Therefore, the heat generated from the image sensor may be easily dissipated to the outside. In addition, the heat sink HD may be formed in various shapes such as a quadrilateral and a circular shape.

[0680] Reference Fig.35d , the image sensor IS may be positioned on the second separate board RP2 of the first unit main board 1310. The image sensor IS may be mounted on the first unit main board 1310 and electrically connected to the board (a common board or a separate board). Therefore, there may be a terminal to be electrically connected to the image sensor IS. The image sensor may be connected to the first unit main board 1310 by various methods such as wiring and welding.

[0681] In addition, the length of the common panel FP in the first direction may be greater than the lengths of the third and fourth individual panels RP3 and RP4 in the first direction. This may also be applied to the common panel FP, the first individual panel, and the second individual panel in the same manner.

[0682] Further references Fig.35e and Figure 35f The second unit main board 1320 may include a board inner side surface 1320a facing the first board and a board outer side surface 1320b, which is a surface opposite to the board inner side surface 1320a. The board inner side surface 1320a corresponds to the fourth separate board. The board outer side surface 1320b corresponds to the third separate board.

[0683] In addition, the first side surface area RA1 may include a first side surface hole 1320h1. The first side surface hole 1320h1 may be coupled to the second plate and the second camera actuator through a protrusion of the second camera actuator, etc.

[0684] The first terminal unit SG1 may be disposed on the board outer side surface 1320b. The first terminal unit SG1 may be disposed along an edge of the board outer side surface 1320b. In this specification, a plurality of terminal units are electrical connection regions, and an electrode pattern may be exposed to the outside.

[0685] The first terminal unit SG1 can be arranged on the long side rather than the short side in the edge of the first side surface area RA1. Through this configuration, it is easy to ensure the layout space of the electrically connected first terminal unit SG1 in the second unit main board. Therefore, it is easy to prevent the occurrence of short circuits and realize various electrical designs.

[0686] In addition, the third terminal unit SG3 can be arranged on the board outer surface 1320b or in the second connection area BA2 of the second unit main board 1320. In addition, the third terminal unit SG3 can be arranged on the long side rather than the short side in the edge of the second connection area BA2. Therefore, the occurrence of short circuit can be suppressed and the electrical design is convenient.

[0687] In addition, as described below, the first terminal unit SG1 may be provided on the second unit main board 1310, and the second terminal unit SG2 may be provided on the first board 1271. That is, the first terminal unit SG1 may be provided on either of the second unit main boards 1320. In addition, the second terminal unit may be provided on either of the first board 1271 and the second board 1272 of the second camera actuator.

[0688] As a modified example, the first terminal unit SG1 may be provided on the board inner side surface 1320a. In addition, the first terminal unit SG1 may also be provided on the long side and / or short side of the edge of the first side surface area RA1 on the board inner side surface 1320a.

[0689] As described above, the first unit main board 1310 can be electrically connected to the first camera actuator and the second camera actuator through the second unit main board 1320 or the third unit main board. Therefore, one or more drive driver ICs can be mounted on the main board. That is, the number of installed drive drivers can be easily adjusted. In addition, since one second unit main board is electrically connected to the first camera actuator and the second camera actuator, a separate electrical connection structure can be eliminated, thereby simplifying the bonding process and reducing the impact vulnerability caused by bonding.

[0690] That is, the first terminal unit SG1 and the third terminal unit SG3 can be arranged on the inner surface 1320a and the outer surface 1320b of the second unit main board. Through this configuration, the main board can be easily connected to the first board and the second sub-board by the conductive member (or electrical conductive member) described below, and the increased connection strength can be provided. The conductive member to be described below can be made of various materials, such as conductive materials. For example, the conductive member can be a metal, and the second terminal unit SG2 can be arranged on the inner side of the first terminal unit SG1. In addition, the first yoke YK1 can be arranged on the outer surface of the first plate 1271. In addition, the second yoke YK2 can be arranged on the outer surface of the second plate 1272.

[0691] In addition, the first coil 1251a may be disposed on the inner surface 1271b of the first plate 1271. The first coil 1251a may be mounted on and electrically connected to the inner surface 1271b of the first plate 1271. In addition, the second coil 1251b may be disposed on the inner surface 1272b of the second plate 1272. The second coil 1251b may be mounted on and electrically connected to the inner surface 1272b of the second plate 1272.

[0692] The connection terminals between the first coil 1251a and the first board 1271 may be positioned symmetrically or misaligned (diagonally) with respect to the optical axis with respect to the connection terminals between the second coil 1251b and the second board 1272.

[0693] An outer surface 1271a of the first plate 1271 may face the second unit main board. An outer surface 1272a of the second plate 1272 may face the third unit main board (when present).

[0694] Fig.37a is a perspective view of a first driving unit (excluding some parts) in a one-side direction according to an embodiment, and Figure 37b is a perspective view of a first driving unit (excluding some parts) according to an embodiment in another side direction.

[0695] Reference Fig.37a and Figure 37b, the first sub-board 1154a can be connected to the second sub-board 1154b and the third sub-board 1154c arranged on the side surface of the first camera actuator. The first sub-board 1154a, the second sub-board 1154b and the third sub-board 1154c of the first board portion 1154 can be an integrated structure or a separated structure. In addition, the first sub-board 1154a, the second sub-board 1154b and the third sub-board 1154c can be connected by a circuit pattern or the like. In addition, a processor, a driver IC, etc. can be arranged on any one of the first sub-board 1154a, the second sub-board 1154b and the third sub-board 1154c. In addition, the processor and the driver IC can provide current to each of the coils installed on the first sub-board 1154a, the second sub-board 1154b and the third sub-board 1154c.

[0696] According to an embodiment, the third coil 1152c may be disposed on the first sub-board 1154a. In addition, the first coil 1251a may be disposed on the second sub-board 1154b. In addition, the second coil 1152b may be disposed on the first sub-board 1154a.

[0697] In addition, the outer surface of the second sub-board 1154b can be positioned to correspond to the second unit main board described above. For example, the second sub-board 1154b can overlap with the second unit main board in the optical axis direction (Z-axis direction) or overlap with the second unit main board in the horizontal direction (Y-axis direction).

[0698] Fig.38a is an external development plan view of a circuit board, a first board unit, and a second board unit according to an embodiment, Figure 38b yes Fig.38a A magnified view of the K1 section in Fig.38c yes Fig.38a A magnified view of the K2 section in FIG. Fig.38d It is along Figure 38b A view of the circuit board, the first board unit and the second board unit taken along the line OO' in FIG.

[0699] Reference Figures 38a to 38d , the outer surface of the first terminal unit SG1 may be convex inward or concave outward. With this configuration, the conductive member may easily fill the inside of the first terminal unit SG1.

[0700] For example, the second unit main board 1320 may be positioned on the first board 1721. Based on this, the second terminal unit SG2 may be positioned below the first terminal unit SG1. The first terminal unit SG1 may overlap with the second terminal unit SG2 in the second direction (Y-axis direction).

[0701] The length of the first terminal unit SG1 in the first direction (X-axis direction) can be less than the length of the second terminal unit SG2 in the first direction (X-axis direction). With this configuration, when a conductive member is applied to the first terminal unit SG1 and the second terminal unit SG2, the conductive member may not flow into the first plate. In addition, the first terminal unit SG1 and the second terminal unit SG2 can be easily connected by the conductive member.

[0702] In addition, the length Waa of the first terminal unit SG1 in the third direction or the optical axis direction may be smaller than the length Wab of the second terminal unit SG2 in the optical axis direction. Therefore, the soldered conductive member may not flow into the first plate.

[0703] The area of ​​the first terminal unit SG1 may be smaller than the area of ​​the second terminal unit SG2. Therefore, electrical connection can be made more accurately. In addition, rigidity can be easily ensured by welding. In addition, even if the first plate 1271 is offset during active alignment of the first lens assembly and the second lens assembly or active alignment of the sensor base SB, the welding area can be easily fixed. In addition, the first plate 1271 may include an exposed area EPA that overlaps with the hole of the first terminal unit SG1 in the horizontal direction. The exposed area EPA may be an area separated from the second terminal unit SG2. Therefore, the conductive member can be placed on the second terminal unit SG2 after flowing through the first terminal unit SG1.

[0704] In addition, the third terminal unit SG3 can be positioned to correspond to the fourth terminal unit SG4 of the second sub-plate 1154b. The third terminal unit SG3 and the fourth terminal unit SG4 can overlap each other at least partially in the optical axis direction. Through this configuration, the third terminal unit can be easily electrically connected to the fourth terminal unit by welding.

[0705] The first yoke YK1 disposed at the outer side of the first plate 1271 may be disposed between the second unit main plate 1310 and the first plate 1271. Therefore, the first yoke YK1 may easily block the conductive member applied to the first terminal unit SG1 from flowing into the actuator after passing through the first plate 1271.

[0706] In addition, the first yoke YK1 may be coupled to the second unit main board 1310 and the first plate 1271 between the second unit main board 1310 and the first plate 1271. In addition, the first yoke YK1 may block a magnetic force provided to the second unit main board 1310, and the like.

[0707] In addition, as described above, a portion of the first plate 1271 may overlap with the sensor base SB in the optical axis direction (Z-axis direction) or may not overlap with the sensor base SB in the optical axis direction (Z-axis direction).

[0708] In addition, the length of the second unit main plate 1320 in the vertical direction may be smaller than the length of the first plate 1271. Therefore, the first terminal unit SG1 and the second terminal unit SG2 may be easily welded.

[0709] In addition, the first terminal unit SG1 may not overlap at least a portion of the third terminal unit SG3 in the optical axis direction (Z-axis direction). As described above, the first terminal unit SG1 may be positioned at a first corner of the second unit main board 1320, and the third terminal unit SG3 may be positioned at a second corner perpendicular to the first corner. Therefore, the welding work process can be performed by distinguishing each position.

[0710] Fig.39 is a plan view of a sensor base, an optical filter, and an image sensor according to an embodiment, Fig.40 It is along Fig.39 A view of the sensor base, filter and image sensor taken along line J-J' in FIG. Fig.41 is a plan view of a sensor base and an image sensor according to an embodiment.

[0711] Reference Figure 39 to Figure 41 As described above, the main board or main board unit of the camera module according to the embodiment includes a sensor base surrounding the image sensor IS.

[0712] In addition, the sensor base SB may include an inflow groove BH provided on its upper surface. For example, the main board and the sensor base SB may be coupled by a coupling member, such as epoxy resin. In addition, the sensor base and the second actuator may also be coupled by a coupling member, such as epoxy resin. In this case, the coupling member may be introduced between the second camera actuator and the sensor base SB through the inflow groove BH.

[0713] In addition, the sensor base SB may include a base groove SBG formed in a side surface thereof. A plurality of base grooves SBG may be formed and positioned to be misaligned (diagonally) with each other.

[0714] In addition, in the embodiment, the sensor base SB may be formed of a base housing BH including a base hole SBH.

[0715] The base housing BH may include a protrusion BHP extending inwardly. Therefore, the base hole SBH of the sensor base SB may include a first hole area HA1 positioned above the extended protrusion BHP and a third hole area HA3 positioned below the extended protrusion BHP. In addition, the base hole SBH may also include a second hole area HA2 corresponding to the extended protrusion BHP. The area of ​​the second hole area HA2 may be smaller than the area of ​​the first hole area HA1 or the third hole area HA3.

[0716] In addition, the main board unit or the main board may include an optical filter F disposed above the image sensor IS. The optical filter F may be mounted on the protrusion BHP of the base housing BH. The optical filter F may block light of a predetermined wavelength band or allow light of a predetermined wavelength band to pass therethrough.

[0717] The filter F may be disposed in the first hole area HA1. In addition, the first hole area HA1 may further include a blocking structure (e.g., a groove) at an outer side of the filter F. The groove may prevent the coupling member from overflowing when the coupling member is applied to mount the filter F on the sensor base SB.

[0718] The image sensor may be disposed in the third hole area HA3. Therefore, it is possible to easily block the inflow of foreign matter into the image sensor IS.

[0719] Specifically, after the filter F is attached to the sensor base SB, the sensor base SB and the filter F may be attached to or connected to the main board portion (e.g., the first unit main board) by a coupling member or a connecting member or may be disposed on the main board portion by a coupling member or a connecting member. In addition, the vent hole VH connected to the third hole area HA3 may be sealed. The air below the filter F or in the second hole area HA2 and the third hole area HA3 may be discharged to the outside through the vent hole VH.

[0720] Fig.42 is a view illustrating a second housing and a fixed lens assembly according to an embodiment, Fig.43 is a perspective view of a second housing according to an embodiment, Fig.44 is a view of a fixed lens assembly according to an embodiment, Fig.45 It is along Fig.42 A view of the second housing and the fixed lens assembly taken along line L-L' in FIG. Fig.46 It is along Fig.42 A view of the second housing and the fixed lens assembly taken along line M-M' in FIG.

[0721] Reference Figure 42 to Figure 46 , the third lens assembly 1222c can be positioned at the front end of the first lens assembly and the second lens assembly. Therefore, the third lens assembly 1222c, the first lens assembly and the second lens assembly can be arranged in sequence along the optical axis direction. The third lens assembly can correspond to the 2-1 housing. In addition, the first lens group 1221a can be positioned in the third lens assembly 1222c. In the following, the terms "third lens assembly" and "2-1 housing" can be used interchangeably.

[0722] The third lens assembly 1222c may be positioned at a front end portion of the 2-2 housing 1232 .

[0723] The upper surface 1232avs of the 2-2 housing 1232 may face the lower surface 1222cbs of the third lens assembly 1222c. In this case, a bonding member (e.g., epoxy resin) may be provided between the upper surface 1232avs of the 2-2 housing 1232 and the lower surface 1222cbs of the third lens assembly 1222c. Thus, active alignment for the first lens group 1221a may be performed. For example, after active alignment (e.g., optical axis alignment) is performed on the first lens group 1221a to the third lens group, the third lens assembly 1222c and the 2-2 housing 1232 may be coupled by curing of the bonding member or the like.

[0724] The lower surface 1222cbs of the second lens assembly 1222b may include an assembly protrusion 1222cp protruding in the optical axis direction. A first stopper may be positioned on the assembly protrusion 1222cp. For example, a plurality of assembly protrusions 1222cp may be formed. In addition, a 1-1 stopper ST1a may be positioned on at least one assembly protrusion 1222cp on one side of the first lens group 1221a. In addition, a 1-2 stopper ST1b may be positioned on at least one assembly protrusion 1222cp. The 1-1 stopper ST1a and the 1-2 stopper ST1b may be positioned symmetrically with respect to the first lens group 11221a or the optical axis.

[0725] In addition, the coupling member EP may be applied to the outer area EPA on the lower surface 1222cbs relative to the first stopper. A plurality of grooves may be present on the lower surface 1222cbs, and the lower surface 1222cbs may be coupled to the 2-2 housing 1232 through the grooves. In addition, the coupling strength may be increased.

[0726] In addition, the outer area EPA may not overlap with the first lens group 1221a in the optical axis direction. The outer area EPA may be positioned outside the first lens group 1221a. Therefore, the influence of the bonding member on the first lens group 1221a can be easily blocked.

[0727] In addition, a groove may be further formed in a region between the outer area EPA and the first lens group 1221a. Therefore, the coupling member may be blocked from moving to the first lens group 1221a.

[0728] Fig.47 is a perspective view of a mobile terminal to which a camera module according to an embodiment is applied.

[0729] Reference Fig.47 , the mobile terminal 1500 according to the embodiment may include a camera module 1000 , a flash module 1530 , and an AF device 1510 disposed on a rear surface thereof.

[0730] The camera module 1000 may include an image capturing function and an AF function. For example, the camera module 1000 may include an AF function using an image.

[0731] The camera module 1000 processes image frames of a still image or a moving image obtained by an image sensor in a capture mode or a video call mode.

[0732] The processed image frames may be displayed on a predetermined display or stored in a memory.A camera (not shown) may also be provided on the front surface of the body of the mobile terminal.

[0733] 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 implement an OIS function together with an AF / zoom function.

[0734] The flash module 1530 may include a light emitting device for emitting light therein. The flash module 1530 may be operated by a camera operation of the mobile terminal or a user's control.

[0735] The AF device 1510 may include one of the packages of a surface light emitting laser device as a light emitting unit.

[0736] The AF device 1510 may include an AF function using laser. The AF device 1510 may be mainly used in a case where the AF function using an image of the camera module 1000 deteriorates, for example, at a close distance of 10 m or less or in a dark environment.

[0737] The AF device 1510 may include a light emitting unit and a light receiving unit, the light emitting unit including a vertical cavity surface emitting laser (VCSEL) semiconductor device, and the light receiving unit for converting light energy into electric energy, such as a photodiode.

[0738] Fig.48 is a perspective view of a vehicle to which the camera module according to the embodiment is applied.

[0739] For example, Fig.48 is an external view of a vehicle including a vehicle driver assistance device to which the camera module 1000 according to an embodiment is applied.

[0740] Reference Fig.48 The vehicle 700 in the embodiment may include wheels 13FL and 13FR rotated by a power source, and a predetermined sensor. The sensor may be a camera sensor 2000, but the present disclosure is not limited thereto.

[0741] The camera sensor 2000 may be a camera sensor applied to the camera module 1000 according to the embodiment. The vehicle 700 in the embodiment may acquire image information through the camera sensor 2000 for capturing a front image or a surrounding image, determine a situation where a lane line is not recognized using the image information, and generate a virtual lane line when the lane line is not recognized.

[0742] For example, the camera sensor 2000 may acquire a front image by capturing a view in front of the vehicle 700, and a processor (not shown) may acquire image information by analyzing an object included in the front image.

[0743] For example, when lane lines, adjacent vehicles, driving obstacles, and objects corresponding to indirect road markings, such as a central divider, a curb, or a tree, are captured in the image captured by the camera sensor 2000, the processor may detect the object and include the detected object in the image information. At this time, the processor may further supplement the image information by acquiring distance information to the object detected by the camera sensor 2000.

[0744] The image information may be information about an object captured in an image. The camera sensor 2000 may include an image sensor and an image processing module.

[0745] The camera sensor 2000 may process a still image or a moving image obtained through an image sensor such as a complementary metal oxide semiconductor (CMOS) or a charge coupled device (CCD).

[0746] The image processing module may process a static image or a moving image acquired by the image sensor to extract necessary information and transmit the extracted information to the processor.

[0747] At this time, the camera sensor 2000 may include a stereo camera for improving the measurement accuracy of the object and further ensuring information such as the distance between the vehicle 700 and the object, but the present disclosure is not limited thereto.

[0748] Although the embodiments have been mainly described above, these descriptions are illustrative only and do not limit the present disclosure, and it will be understood by those skilled in the art that various modifications and applications not illustrated above are possible without departing from the basic features of the embodiments. For example, each component specifically illustrated in the embodiments can be implemented by modification. In addition, the differences associated with these modifications and applications should be interpreted as being included in the scope of the present disclosure defined in the appended claims.

Claims

1. A camera actuator, comprising: case; a first lens assembly and a second lens assembly, wherein the first lens assembly and the second lens assembly are configured to move relative to the housing along an optical axis; a first driving unit configured to move the first lens assembly; a second driving unit configured to move the second lens assembly; as well as a first yoke, the first yoke being arranged to overlap with the first driving unit in a direction perpendicular to the optical axis direction, The first magnetic yoke includes a first region and a second region, and the second region has a thickness different from that of the first region.

2. The camera actuator according to claim 1, wherein: The second region is thicker than the first region.

3. The camera actuator according to claim 1, wherein: The length of the second region in the direction of the optical axis is smaller than the length of the first region in the direction of the optical axis.

4. The camera actuator according to claim 1, wherein: The first driving unit includes a first magnet, and The first magnet includes a first pole region, a neutral region, and a second pole region which are sequentially arranged along the optical axis direction.

5. The camera actuator according to claim 4, wherein: When the first magnet is maximally moved in the optical axis direction, the first pole region of the first magnet is arranged to overlap with the first region.

6. The camera actuator according to claim 4, wherein: When the first magnet is maximally moved in a direction opposite to the optical axis direction, the first pole region of the first magnet is arranged to overlap with the second region.

7. The camera actuator according to claim 4, wherein: When the first magnet is maximally moved in a direction opposite to the optical axis direction, the length of the second region is greater than the length of an overlapping region between the second region and the first pole region.

8. The camera actuator according to claim 5, wherein: When the first magnet moves maximally in a direction opposite to the optical axis direction, the length of the second region is smaller than the sum of the length of an overlapping region between the second region and the first pole region and the length of the neutral region.

9. The camera actuator according to claim 4, wherein: The length of the first polar region is different from the length of the second region.

10. The camera actuator according to claim 4, wherein: The length of the second region is smaller than the length of the first magnet.

11. The camera actuator according to claim 4, wherein: The first yoke includes a boundary region between the first region and the second region, and When the first magnet is maximally moved in a direction opposite to the optical axis direction, the boundary region overlaps with the neutral region.

12. The camera actuator according to claim 1, further comprising a second yoke disposed to overlap with the second driving unit in a direction perpendicular to the optical axis direction, in, The first region of the second yoke has a thickness different from that of the second region of the second yoke.

13. The camera actuator according to claim 1, wherein: The second region and the first region of the first yoke are sequentially arranged along the optical axis direction.

14. The camera actuator according to claim 1, wherein: The second region of the first yoke protrudes outward or inward from the first region.

15. The camera actuator according to claim 1, wherein: The first driving unit includes a first magnet and a first coil facing the first magnet, and The first coil includes a hollow portion.

16. The camera actuator according to claim 15, wherein: The second region does not overlap with the hollow portion.

17. The camera actuator according to claim 12, wherein: The second region of the first yoke overlaps with the second region of the second yoke.

18. The camera actuator according to claim 12, wherein: At least a portion of the second region of the first yoke is misaligned with the second region of the second yoke.

19. The camera actuator of claim 1, wherein: The length of the second region in the optical axis direction is within a range of 20% to 50% of the length of the first yoke in the optical axis direction.

20. The camera actuator of claim 1, wherein: The thickness of the second region of the first yoke is 1.2 to 1.7 times the thickness of the first region of the first yoke.

21. A camera actuator, comprising: case; a first lens assembly and a second lens assembly, wherein the first lens assembly and the second lens assembly are disposed in the housing; a first driving unit, wherein the first driving unit is configured to move the first lens assembly along an optical axis direction; as well as a first yoke, the first yoke being arranged to overlap with the first driving unit in a direction perpendicular to the optical axis direction, Wherein, the first driving unit comprises a first magnet, The first magnet includes a first polar region, a second polar region, and a neutral region disposed between the first polar region and the second polar region. The first yoke includes a first region and a second region, the second region having a magnetic strength different from that of the first region, and When the first lens assembly moves to a maximum moving distance, the second region overlaps with the first pole region of the first magnet in a direction perpendicular to the optical axis direction.

22. The camera actuator of claim 21, wherein: When the first lens assembly is maximally moved in a direction opposite to the optical axis direction, a boundary region between the first region and the second region overlaps with the neutral region.

23. The camera actuator of claim 22, wherein: The second region does not overlap with the second pole region in a direction perpendicular to the optical axis direction.

24. A camera actuator, comprising: case; a first lens assembly and a second lens assembly, wherein the first lens assembly and the second lens assembly are configured to move relative to the housing along an optical axis; a first driving unit configured to move the first lens assembly; a second driving unit configured to move the second lens assembly; as well as a first yoke, the first yoke being arranged to overlap with the first driving unit in a direction perpendicular to the optical axis direction, The first magnetic yoke includes a first region and a second region, and the second region has a magnetic strength different from that of the first region.

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