Camera actuator, and camera module including the same

Abstract

Embodiments of the present invention disclose a camera actuator including a housing, a first lens assembly and a second lens assembly that move in the optical axis direction with respect to the housing, a first driving unit that moves the first lens assembly, a second driving unit that moves the second lens assembly, and a first yoke disposed so as to overlap in a direction perpendicular to the optical axis direction of the first driving unit. 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 invention relates to a camera actuator and a camera module including the same.

Background Art

[0002] A camera is a device that captures a subject as a photo or video, and is mounted on a portable device, a drone, a vehicle, etc. A camera module has an image stabilization (IS) function that corrects or prevents image shake caused by the movement of the user in order to improve the image quality, an auto focusing (AF) function that automatically adjusts the distance between the image sensor and the lens to align the focal length of the lens, and a zooming function that increases or decreases the magnification of a distant subject through a zoom lens for shooting.

[0003] On the other hand, the higher the pixel count of an image sensor, the higher the resolution and the smaller the pixel size. However, the smaller the pixel size, the less light it can receive in the same time. Therefore, as the pixel count of the camera increases, the image shake phenomenon caused by camera shake due to a slower shutter speed in a dark environment may become more serious. As a typical example of image stabilization (IS) technology, there is an optical image stabilizer (OIS) technology that corrects movement by changing the optical path.

[0004] According to general OIS technology, the movement of the camera can be sensed through a gyrosensor or the like, and based on the sensed movement, the lens can be tilted or moved, or the camera module including the lens and the image sensor can be tilted or moved. When tilting or moving the lens or the camera module including the lens and the image sensor for OIS, it is necessary to further secure space for tilting or moving around the lens or the camera module.

[0005] On the one hand, the actuator for OIS may be arranged around the lens. At this time, the actuator for OIS may include two axes perpendicular to the optical axis Z, that is, an actuator responsible for tilting the X-axis and an actuator responsible for tilting the Y-axis.

[0006] However, depending on the needs of ultra-thin and ultra-small camera modules, there are significant space constraints for arranging the actuator for OIS, and it may be difficult to secure sufficient space for the lens or the camera module itself including the lens and the image sensor to tilt or move for OIS. Also, as the pixel count of the camera increases, it is preferable for the size of the lens to increase in order to increase the amount of light received, but there may be a limit to increasing the size of the lens due to the space occupied by the actuator for OIS.

[0007] In addition, when the camera module includes all of the zoom function, AF function, and OIS function, there is also a problem that the OIS magnet and the AF or Zoom magnet are arranged close to each other, resulting in magnetic field interference. There is also a problem that it is difficult to connect to the substrate in a miniaturized camera module. Furthermore, the requirement for protecting the circuit elements from inflows, that is, improving reliability, is also increasing. Summary of the Invention Problems to be Solved by the Invention

[0008] The technical problem to be solved by the present invention is to provide a camera actuator and a camera module with minimized magnetic field interference.

[0009] In addition, the present invention can provide a camera actuator and a camera module in which autofocus and zoom (magnification) are performed accurately and precisely by reducing the magnetic force generated by the magnet of the AF / ZOOM camera actuator.

[0010] In addition, the present invention can provide an AF / ZOOM camera actuator with the influence of an OIS camera actuator minimized, and a camera module including the same.

[0011] In addition, the present invention can provide a camera actuator and a camera module in which the frictional force with respect to the movement of the first and second lens assemblies is optimized.

[0012] In addition, the present invention can provide a camera actuator and a camera module in which sufficient space for connection to a main board is ensured in a camera module composed of two actuators.

[0013] In addition, the present invention can provide a camera actuator and a camera module with improved reliability by protecting circuit elements and the like from the inflow of foreign matter.

[0014] In addition, the present invention can provide a camera actuator and a camera module in which an element mounting space is easily ensured and the strength is improved by increasing the bonding area for connection.

[0015] The technical problem to be solved by the present invention is to provide a camera actuator applicable to an ultra-thin, ultra-small, and high-resolution camera.

[0016] The problems to be solved in the embodiments are not limited to these, and it can be said that they also include the means for solving the problems described below and the objects and effects that can be grasped from the embodiments.

Means for Solving the Problems

[0017] The camera actuator according to an embodiment of the present invention includes a housing, a first lens assembly and a second lens assembly that move in the optical axis direction with respect to the housing, a first driving unit that moves the first lens assembly, a second driving unit that moves the second lens assembly, and a first yoke that is disposed so as to overlap in a direction perpendicular to the optical axis direction, and the first yoke includes a first region and a second region having a different thickness from the first region.

[0018] The second region may be thicker than the first region.

[0019] In the optical axis direction, the length of the second region may be smaller than the length of the first region.

[0020] The first driving unit includes a first magnet, and the first magnet may include a first pole region, a neutral region, and a second pole region that are sequentially arranged along the optical axis direction.

[0021] When the first magnet moves maximally in the optical axis direction, the first pole region of the first magnet may be arranged so as to overlap the first region.

[0022] When the first magnet moves maximally in the direction opposite to the optical axis direction, the first pole region of the first magnet may be arranged so as to overlap the second region.

[0023] When the first magnet moves maximally in the direction opposite to the optical axis direction, the length of the second region may be larger than the length of the overlapping region between the second region and the first pole region.

[0024] When the first magnet moves maximally in the 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 pole region and the length of the neutral region.

[0025] The length of the first pole region may be different from the length of the second region.

[0026] The length of the second region may be smaller than the length of the first magnet.

[0027] The first yoke includes a boundary region between the first region and the second region, and when the first magnet moves maximally in the direction opposite to the optical axis direction, the boundary region may overlap with the neutral region.

[0028] It includes a second yoke arranged to overlap with the second driving part in a direction perpendicular to the optical axis direction, and the thickness of the first region of the second yoke may be different from that of the second region of the second yoke.

[0029] The second region and the first region of the first yoke may be sequentially arranged along the optical axis direction.

[0030] The second region of the first yoke may protrude outside or inside the first region.

[0031] The first driving part includes a first magnet and a first coil facing the first magnet, and the first coil may include a hollow.

[0032] The second region may not overlap with the hollow.

[0033] The second region of the first yoke may overlap with the second region of the second yoke.

[0034] The second region of the first yoke may be at least partially offset from the second region of the second yoke.

[0035] The length of the second region in the optical axis direction may be 20% - 50% of the length of the first yoke.

[0036] The thickness of the second region in the first yoke may be 1.2 times to 1.7 times the thickness of the first region.

[0037] The camera actuator according to the embodiment includes a housing, a first lens assembly and a second lens assembly disposed in the housing, a first driving unit that moves the first lens assembly in the optical axis direction, and a first yoke disposed so as to overlap the first driving unit in a direction perpendicular to the optical axis direction. The first driving unit includes a first magnet, and the first magnet includes a first pole region, a second pole region, and a neutral region disposed between the first pole region and the second pole region. The first yoke includes a first region and a second region having a magnetic strength different from that of the first region. When the first lens assembly moves to the maximum moving distance, the second region overlaps the first pole region of the first magnet in a direction perpendicular to the optical axis direction.

[0038] When the first lens assembly moves maximally in the direction opposite to the optical axis direction, the boundary region between the first region and the second region may overlap the neutral region.

[0039] The second region may not overlap the second pole region in a direction perpendicular to the optical axis direction.

[0040] The camera actuator according to the embodiment includes a housing, a first lens assembly and a second lens assembly that move in the optical axis direction with respect to the housing, a first driving unit that moves the first lens assembly, a second driving unit that moves the second lens assembly, and a first yoke disposed so as to overlap 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 magnetic strength different from that of the first region.

[0041] The camera module according to an embodiment of the present invention includes a housing, two movable lens groups disposed within the housing, and a substrate coupled to the housing. The housing 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 substrate includes a first substrate disposed on the first side surface and the second side surface, and a second substrate disposed on the second side surface and the third side surface. An area of the first substrate disposed on the second side surface includes a plurality of terminals, and an area of the second substrate disposed on the second side surface includes a plurality of pads. At least a part of the plurality of terminals is soldered to at least a part of the plurality of pads.

[0042] The plurality of terminals and the plurality of pads may be at least six.

[0043] The plurality of terminals and the plurality of pads may correspond one-to-one.

[0044] The number of the plurality of terminals or the plurality of pads may be the same as the number of solder joints.

[0045] The cross-sectional area of the plurality of pads may be larger than the cross-sectional area of the plurality of terminals.

[0046] The plurality of terminals may include grooves formed in a part of the area.

[0047] At least a part of the plurality of terminals may overlap with at least a part of the plurality of pads in a direction perpendicular to the optical axis.

[0048] The plurality of terminals may be arranged along the optical axis with respect to each other.

[0049] The plurality of pads may be arranged along the optical axis with respect to each other.

[0050] The camera module according to the embodiment includes a second actuator including two movable lens groups, a first substrate on which an image sensor is disposed, and a second substrate overlapping with a direction perpendicular to the optical axis. The first substrate includes a first unit substrate on which the image sensor is disposed, and a second unit substrate connected to the first unit substrate and including a plurality of terminals. The second substrate includes a first unit substrate disposed on a first side surface of the second actuator, and a second unit substrate connected to the first unit substrate and including a plurality of pads. The second unit substrate of the first substrate and the second unit substrate of the second substrate overlap in a direction perpendicular to the optical axis, and at least a part of the plurality of terminals on the second unit substrate of the first substrate corresponds to at least a part of the plurality of pads on the second unit substrate of the second substrate.

[0051] At least a part of the plurality of terminals on the second unit substrate of the first substrate may be bonded to at least a part of the plurality of pads on the second unit substrate of the second substrate by soldering.

[0052] The first unit substrate of the first substrate may not be connected to the second unit substrate of the second substrate.

[0053] It may include a first yoke disposed between the second unit substrate of the first substrate and the second unit substrate of the second substrate.

[0054] The second unit substrate of the first substrate may have a flexible region and a rigid region.

[0055] It may include a first actuator including an optical member that changes an optical path.

[0056] The plurality of terminals on the second unit substrate of the first substrate may be disposed at an edge of the second unit substrate of the first substrate.

[0057] The plurality of terminals on the second unit substrate of the first substrate may be located above and below the second unit substrate of the first substrate.

[0058] The camera module according to an embodiment of the present invention includes a first actuator and a second actuator sequentially arranged in the optical axis direction, a first unit main board on which an image sensor is arranged, and a main board including a second unit main board extending from the first unit main board in the optical axis direction and overlapping the second actuator in a horizontal direction perpendicular to the optical axis direction. The second actuator includes a first substrate overlapping the second unit main board in the horizontal direction, and the first substrate is arranged at a distance from the first unit main board in the optical axis direction.

[0059] The second unit main board includes a first terminal portion, the first substrate includes a second terminal portion, and the first terminal portion may be soldered to the second terminal portion.

[0060] The second actuator includes a first yoke arranged outside the first substrate, and the first yoke may be arranged between the second unit main board and the first substrate.

[0061] The first yoke may be coupled between the second unit main board and the first substrate.

[0062] The first actuator may include a plurality of sub-substrates facing each other.

[0063] The plurality of sub-substrates may not overlap the second unit main board in the horizontal direction.

[0064] The plurality of sub-substrates may overlap the second unit main board in the horizontal direction.

[0065] The second unit main board includes a third terminal portion, at least one of the plurality of sub-substrates includes a fourth terminal portion, and the third terminal portion may be soldered to the fourth terminal portion.

[0066] The main board includes a sensor base surrounding the image sensor, and the sensor base may include a base housing including a base hole.

[0067] The main substrate includes a filter disposed above the image sensor, the base hole includes a first hole region where the filter is disposed, and the first hole region may further include a blocking structure outside the filter.

[0068] The base hole includes a second hole region and a third hole region sequentially disposed below the first hole region, and the image sensor may be disposed within the third hole region.

[0069] The sensor base may further include a vent hole connected to the third hole region.

[0070] The first terminal portion may overlap the second terminal portion in the horizontal direction.

[0071] The main substrate includes a sensor base surrounding the image sensor, and the first substrate may be disposed separated from the sensor base in the optical axis direction.

[0072] The first substrate may overlap the sensor base in the optical axis direction.

[0073] The first substrate may be located in a region between the plurality of sub-substrates.

[0074] In the second unit main substrate, an end portion adjacent to the first actuator may be located inside an end portion in contact with the first unit main substrate.

[0075] The second unit main substrate may have a length in the vertical direction smaller than that of the first substrate, and the vertical direction may be a direction perpendicular to the optical axis direction and the horizontal direction.

[0076] The first terminal portion may not overlap the third terminal portion in the optical axis direction.

[0077] The first terminal portion may be located at a first corner of the second unit main board, and the third terminal portion may be located at a second corner of the second unit main board perpendicular to the first corner.

Advantages of the Invention

[0078] The technical problem to be solved by the present invention is to realize a camera actuator and a camera module with minimized magnetic field interference.

[0079] In addition, the present invention can realize a camera actuator and a camera module in which autofocus and zoom (magnification) are performed accurately and precisely by reducing the magnetic force generated by the magnet of the AF / ZOOM camera actuator.

[0080] In addition, the present invention can realize an AF / ZOOM camera actuator with minimized influence by the OIS camera actuator, and a camera module including the same.

[0081] In addition, the present invention can realize a camera actuator and a camera module in which the frictional force against the movement of the first and second lens assemblies is optimized.

[0082] In addition, the present invention can realize a camera actuator and a camera module in which sufficient space for connection to the main board is ensured in a camera module composed of two actuators.

[0083] In addition, the present invention can realize a camera actuator and a camera module with improved reliability by protecting circuit elements and the like from the inflow of foreign matter.

[0084] In addition, the present invention can realize a camera actuator and a camera module in which an element mounting space is easily ensured and the strength is improved by increasing the bonding area for connection.

[0085] The technical problem to be solved by the present invention is to provide a camera actuator applicable to an ultra-thin, ultra-small, and high-resolution camera.

[0086] The various and beneficial advantages and effects of the present invention are not limited to the above-described content, and will be more easily understood in the process of describing the specific embodiments of the present invention.

Brief Description of the Drawings

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Embodiments for Carrying Out the Invention

[0161] Since the present invention can be modified in various ways and can have various embodiments, specific embodiments are shown in the drawings and described. However, this is not intended to limit the present invention to specific embodiments, and it should be understood to include all modifications, equivalents, and alternatives included in the spirit and technical scope of the present invention.

[0162] Terms including ordinal numbers such as "second", "first", etc. can be used to describe various components, but the components are not limited by the terms. The terms are used only for the purpose of distinguishing one component from another. For example, without departing from the scope of the present invention, the second component can be called the first component, and similarly, the first component can also be called the second component. The term "and / or" includes a combination of a plurality of related recited items or any one of the plurality of related recited items.

[0163] When a component is described as being "coupled" or "connected" to another component, it should be understood that it may be directly coupled or connected to the other component, but there may also be other components between them. On the other hand, when a component is described as being "directly coupled" or "directly connected" to another component, it should be understood that there are no other components between them.

[0164] The terms used in this application are merely used to describe specific embodiments and are not intended to limit the present invention. Singular expressions include plural expressions unless the context clearly indicates otherwise. In this application, terms such as "including" or "having" are used to specify the presence of the features, numbers, steps, operations, components, parts, or combinations thereof described in the specification, and should not be construed as precluding the possibility of the presence or addition of one or more other features, numbers, steps, operations, components, parts, or combinations thereof.

[0165] Unless otherwise defined, all terms used herein, including technical and scientific terms, have the same meaning as commonly understood by one of ordinary skill in the technical field to which the present invention belongs. Terms defined in commonly used dictionaries should be interpreted as having a meaning consistent with the meaning in the context of the related art, and should not be interpreted in an idealized or overly formal sense unless clearly defined in this application.

[0166] Hereinafter, embodiments will be described in detail with reference to the accompanying drawings. However, the same or corresponding components will be denoted by the same reference numerals regardless of the reference signs, and redundant descriptions thereof will be omitted. Also, the views shown are corresponding to the views seen by cutting along the cutting plane.

[0167] FIG. 1 is a perspective view of a camera module according to an embodiment, FIG. 2 is an exploded perspective view of the camera module according to the embodiment, and FIG. 3 is a view seen along AA' of FIG. 1.

[0168] Referring to FIGS. 1 and 2, the camera module 1000 according to the embodiment may be composed of 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 mixed with the first actuator, and the second camera actuator 1200 may be mixed with the second actuator. Further, when the first camera actuator is described as the "second camera actuator" in order, the second camera actuator will be described as the "first camera actuator".

[0169] The cover CV can cover the first camera actuator 1100 and the second camera actuator 1200. The cover CV can improve the coupling force between the first camera actuator 1100 and the second camera actuator 1200.

[0170] Furthermore, the cover CV may be formed of a material that performs electromagnetic wave shielding. Therefore, the first camera actuator 1100 and the second camera actuator 1200 inside the cover CV can be easily protected.

[0171] Also, the first camera actuator 1100 may be an OIS (Optical Image Stabilizer) actuator. For example, the first camera actuator 1100 can move an optical member in a direction perpendicular to the optical axis (the axis of incident light).

[0172] 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 be referred to as a "single focal length lens" or a "single lens".

[0173] The first camera actuator 1100 can change the optical path. In an embodiment, the first camera actuator 1100 can vertically change the optical path through an internal optical member (e.g., a prism or a mirror). For example, the optical member can change light from a first direction (X-axis direction) to a third direction (Z-axis direction). Alternatively, the optical member can change light from a first axis to a second axis. With such a configuration, even if the thickness of the mobile terminal decreases, a lens configuration larger than the thickness of the mobile terminal can be disposed in the mobile terminal by changing the optical path, and functions such as magnification, autofocus (AF), zoom, and OIS can be achieved.

[0174] However, without being limited thereto, the first camera actuator 1100 can change the optical path vertically or at a predetermined angle multiple times.

[0175] The second camera actuator 1200 may be disposed at the rear end of the first camera actuator 1100. The second camera actuator 1200 can be coupled to the first camera actuator 1100. Also, the coupling between them may be performed in various ways. In the present invention, the front end may be an end on the opposite side of the optical axis direction, and the rear end may be an end in the optical axis direction (Z-axis direction).

[0176] Further, the second camera actuator 1200 may be a zoom actuator or an AF (Auto Focus) actuator. For example, the second camera actuator 1200 supports one or more lenses and can move the lenses according to a control signal from a predetermined control unit to perform an auto-focus function or a zoom function.

[0177] Also, one or more lenses move independently or individually along the optical axis direction.

[0178] The circuit board 1300 may be disposed at the rear end of the second camera actuator 1200. The circuit board 1300 can be electrically connected to the second camera actuator 1200 and the first camera actuator 1100. Also, there may be a plurality of circuit boards 1300.

[0179] The camera module according to the embodiment may be composed of one or more camera modules. For example, the plurality of camera modules may include a first camera module and a second camera module.

[0180] Further, the first camera module may include one or more actuators. For example, the first camera module may include the first camera actuator 1100 and the second camera actuator 1200.

[0181] In addition, the second camera module may be disposed in a predetermined housing (not shown) and include an actuator (not shown) capable of driving a lens unit. The actuator may be a voice coil motor, a micro actuator, a silicon actuator, etc., and can be applied in various ways such as an electrostatic method, a thermal method, a bimorph method, an electrostatic force method, etc., but is not limited thereto. Also, in this specification, the camera actuator may sometimes be referred to as an actuator or the like. Further, a camera module composed of a plurality of camera modules may be mounted in various electronic devices such as a mobile terminal. Furthermore, the actuator may be a device that moves or tilts a lens or an optical member. However, hereinafter, the actuator will be described as a concept including a lens and an optical member. Furthermore, the actuator may also be referred to as a "lens transfer device", "lens moving device", "optical member transfer device", "optical member moving device", etc.

[0182] Referring to FIG. 3, the camera module according to the embodiment may include a first camera actuator 1100 that performs an OIS function and a second camera actuator 1200 that performs a zooming function and an AF function.

[0183] Light can enter the camera module or the first camera actuator through an opening region located on the upper surface of the first camera actuator 1100. That is, light enters the inside of the first camera actuator 1100 along the optical axis direction (for example, the X-axis direction, based on the incident light), and the optical path can be changed in the vertical direction (for example, the Z-axis direction) by an optical member. Also, light can pass through the second camera actuator 1200 and enter an image sensor IS located 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.

[0184] In this specification, the bottom surface means one side in the first direction. Also, the first direction is the X-axis direction on the drawing, and it may be used interchangeably with the second axis direction or the like. The second direction is the Y-axis direction on the drawing, and it may be used interchangeably with the first axis direction or the like. The second direction is perpendicular to the first direction. Also, the third direction is the Z-axis direction on the drawing, and it may be used interchangeably with the third axis direction or the like. Also, the third direction is perpendicular to both the first direction and the second direction. Here, the third direction (Z-axis direction) corresponds to the direction of the optical axis, and the first direction (X-axis direction) and the second direction (Y-axis direction) are perpendicular to the optical axis. Also, in the following descriptions of the first and second camera actuators 1100 and 1200, the optical axis direction is the third direction (Z-axis direction), and the following explanations are based on this.

[0185] Also, in this specification, the inside may be the direction toward the first and second camera actuators by the cover CV, and the outside may be the opposite direction to the inside. That is, the first camera actuator and the second camera actuator are located inside the cover CV, and the cover CV may be located outside the first camera actuator or the second camera actuator. Further, the outside may be the direction toward the outer surface based on the center (for example, the center of gravity) of each camera actuator. Also, the inside may mean the opposite direction to the outside.

[0186] Also, with such a configuration, the camera module according to the embodiment can improve the spatial limits of the first camera actuator and the second camera actuator by changing the optical path. That is, the camera module according to the embodiment can extend the optical path while minimizing the thickness of the camera module in response to the change in the optical path. Further, it should also be understood that the second camera actuator can provide a high range of magnifications by controlling the focus and the like with the extended optical path.

[0187] In addition, the camera module according to the embodiment can implement OIS by controlling the optical path through the first camera actuator, thereby minimizing the occurrence of decent and tilt conditions and obtaining the best optical characteristics.

[0188] Furthermore, the second camera actuator 1200 may include an optical system and a lens driving unit. For example, at least one or more of a first lens assembly, a second lens assembly, and a third lens assembly may be arranged in the second camera actuator 1200.

[0189] In addition, the second camera actuator 1200 can perform a high-magnification zoom function and an autofocus function by including a coil and a magnet.

[0190] For example, the first lens assembly and the second lens assembly may be a moving lens that moves via a coil, a magnet, and a guide pin, and the third lens assembly may be a fixed lens, but is not limited thereto. For example, the third lens assembly can function as a focator that forms an image of light at a specific position, and the first lens assembly can function as a variator that re-images the image formed by the third lens assembly, which is a focator, at another location. On the other hand, in the first lens assembly, there is a possibility that the distance from the subject or the image distance changes significantly and the magnification change is large, and the first lens assembly, which is a variator, can play an important role in the focal length or magnification change of the optical system. On the other hand, the image point formed by the first lens assembly, which is a variator, may have a slight difference depending on the position. Therefore, the second lens assembly can perform a position compensation function for the image formed by the variator. For example, the second lens assembly can function as a compensator that accurately forms the image point formed by the first lens assembly, which is a variator, at the actual image sensor position. For example, the first lens assembly and the second lens assembly may be driven by an electromagnetic force due to the interaction between the coil and the magnet. The above-described content can be applied to the lens assemblies described later. Also, the first lens assembly to the third lens assembly can move along the optical axis direction, that is, the third direction. Also, the first lens assembly to the third lens assembly can move in the third direction independently or dependently on each other. In the present invention, the first lens assembly and the second lens assembly can move along the optical axis direction. Also, the third lens assembly may be located at the front end of the first lens assembly or the rear end of the second lens assembly. Also, the third lens assembly may not move in the optical axis direction. That is, the third lens assembly may be a fixed part. Also, the first and second lens assemblies may be moving parts.

[0191] On the one hand, when the OIS actuator and the AF / Zoom actuator are arranged according to the embodiments of the present invention, magnetic field interference with the AF / Zoom magnet can be prevented during the driving of OIS. Since the first drive magnet of the first camera actuator 1100 is arranged separately 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 shake correction, optical image stabilization, optical image correction, and blur correction.

[0192] FIG. 4 is a perspective view of the first camera actuator according to the embodiment, and FIG. 5 is an exploded perspective view of the first camera actuator according to the embodiment.

[0193] Referring to FIGS. 4 and 5, the first camera actuator 1100 according to the embodiment includes a first housing 1120, a mover 1130, a rotating part 1140, a first driving part 1150, a first member 1126, and a second member 1131a. Further, the first camera actuator 1100 may further include a plate.

[0194] The mover 1130 may include a holder 1131 and an optical member 1132 mounted on the holder 1131. The rotating part 1140 may include a tilt guide part 1141, a second magnetic body 1142 and a first magnetic body 1143 having the same or different polarities from each other so as to press the tilt guide part 1141. For example, the first magnetic body 1143 and the second magnetic body 1142 may have the same polarity on the surfaces facing each other. The first driving part 1150 includes a drive magnet 1151, a drive coil 1152, a hall sensor part 1153, a first substrate part 1154, and a yoke part 1155. The first driving part 1150 can correspond to an "OIS driving part", a "front-end driving part", etc.

[0195] First, the first camera actuator 1100 may include a shield can (not shown). The shield can (not shown) may be located on the outermost side of the first camera actuator 1100 and may be positioned to surround a rotating part 1140 and a first driving part 1150 described later.

[0196] Such a shield can (not shown) can block or reduce electromagnetic waves generated outside. That is, the shield can (not shown) can reduce the occurrence of malfunction in the rotating part 1140 or the first driving part 1150.

[0197] The first housing 1120 may be located inside the shield can (not shown). In the case where there is no shield can, the first housing 1120 may be located on the outermost side of the first camera actuator.

[0198] Also, the first housing 1120 may be located inside a first substrate part 1154 described later. The first housing 1120 may be fitted or aligned with the shield can (not shown) and fastened.

[0199] The first housing 1120 may include a first housing side part 1121, a second housing side part 1122, a third housing side part 1123, and a fourth housing side part 1124. A detailed description thereof will be given later.

[0200] The first member 1126 may be arranged on the first housing 1120. A part of the region of the first member 1126 may be penetrated by a second member 1131a. The first member 1126 may be arranged inside the housing. The first member 1126 may be integral with the first housing 1120 or may have a separated structure.

[0201] Furthermore, the first camera actuator 1100 may further include a plate disposed outside the first member 1126. The plate can prevent foreign matter from flowing into the second member 1131a or the like that penetrates the first member 1126. Further, the plate may be formed of a magnetic material. Therefore, the plate has magnetism, and a magnetic force may not be generated with respect to the first magnetic body 1143 and the second magnetic body 1142 having polarities for pressurization. That is, generation of a magnetic force that hinders driving (pressurization) of the first magnetic body 1143 and the second magnetic body 1142 can be reduced.

[0202] When such a plate is a magnetic material, it may also be called a magnetic member, a magnetic body, a cover plate, a metal member, a metal plate, or the like.

[0203] The mover 1130 includes a holder 1131 and an optical member 1132 seated on the holder 1131.

[0204] The holder 1131 can be seated in the accommodation portion 1125 of the first housing 1120. The holder 1131 may include a first holder outer surface to a fourth holder outer surface 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 holder outer surface to the fourth holder outer surface 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.

[0205] Also, the holder 1131 may include a second member 1131a disposed in the fourth seating groove. The second member 1131a can penetrate the first member 1126 and be coupled to the holder 1131. The second member 1131a and the holder 1131 can be coupled to each other by various joining members or coupling members. A detailed description thereof will be given later.

[0206] The optical member 1132 can be mounted on the holder 1131. For this purpose, the holder 1131 may have a mounting surface, and the mounting surface may be formed by a receiving groove. In an embodiment, the optical member 1132 may be composed of a mirror or a prism. Although the following is shown based on a prism, it may be composed of a plurality of lenses as in the above-described embodiment. Alternatively, the optical member 1132 may be composed of a plurality of lenses and a prism or a mirror. Further, the optical member 1132 may include a reflecting portion disposed inside. However, it is not limited thereto.

[0207] Also, the optical member 1132 can reflect the light reflected from the outside (for example, an object) inside the camera module. In other words, the optical member 1132 can improve the spatial limits of the first camera actuator and the second camera actuator by changing the path of the reflected light. Thus, it should also be understood that the camera module can provide a high range of magnifications while securing the optical path while minimizing the thickness.

[0208] Furthermore, the second member 1131a can be coupled to the holder 1131. The second member 1131a may be disposed outside the holder 1131 and inside the housing. Also, the second member 1131a can be mounted in an additional groove located in a region other than the fourth mounting groove on the fourth outer surface of the holder 1131. Thereby, the second member 1131a is coupled to the holder 1131, and at least a part of the first member 1126 can be located between the second member 1131a and the holder 1131. For example, at least a part of the first member 1126 may be disposed in a space formed between the second member 1131a and the holder 1131. Also, as described above, the second member 1131a can penetrate through the holes (the first through hole and the second through hole described later) formed in the first member 1126.

[0209] Further, the second member 1131a may not have a structure separate from the holder 1131. With such a configuration, as will be described later, the assembly of the first camera actuator can be easily performed. Alternatively, the second member 1131a may be formed integrally with the holder 1131, but will be described below as a separated structure.

[0210] The rotating part 1140 includes a tilt guide part 1141, a second magnetic body 1142 having the same polarity as each other so as to press the tilt guide part 1141, and a first magnetic body 1143. The first magnetic body and the second magnetic body may be arranged such that poles having the same polarity as each other (for example, the north pole) face each other.

[0211] The tilt guide part 1141 can be coupled to the above-described mover 1130 and the first housing 1120. Specifically, the tilt guide part 1141 may be disposed between the holder 1131 and the first member 1126. Therefore, the tilt guide part 1141 can be coupled to the mover 1130 of the holder 1131 and the first housing 1120. However, different from the above-described content, in the present embodiment, the tilt guide part 1141 may be disposed between the first member 1126 and the holder 1131. Specifically, the tilt guide part 1141 may be located between the first member 1126 and the fourth seating groove of the holder 1131. For example, at least a part of the tilt guide part 1141 may be located in the fourth seating groove.

[0212] In the third direction (Z-axis direction), the second member 1131a, the first member 1126, the tilt guide portion 1141, and the holder 1131 may be arranged in this order. Further, the second magnetic body 1142 and the first magnetic body 1143 can be seated in a first groove gr1 formed in the second member 1131a and a second groove gr2 formed in the first member 1126, respectively. In the present embodiment, the positions of the first groove gr1 and the second groove gr2 may be different from those of the first and second grooves described in the other embodiments above. However, the first groove gr1 is located within the second member 1131a and moves integrally with the holder and the second member 1131a, and the second groove gr2 is located on the first member 1126 corresponding to the first groove gr1 and is coupled to the first housing 1120. Therefore, these terms will be described in a mixed manner. Further, as described above, the first groove and the second groove may be grooves. Alternatively, the first groove and the second groove may be replaced with holes.

[0213] Further, the tilt guide portion 1141 may be arranged adjacent to the optical axis. Thereby, the actuator according to the embodiment can easily change the optical path by the first and second axis tilts described later.

[0214] The tilt guide portion 1141 may include a first protruding portion arranged spaced apart in the first direction (X-axis direction) and a second protruding portion arranged spaced apart in the second direction (Y-axis direction). Further, the first protruding portion and the second protruding portion may protrude in opposite directions. A detailed description thereof will be given later.

[0215] Further, as described above, the second magnetic body 1142 may be located within the second member 1131a. Also, the first magnetic body 1143 may be located within the first member 1126.

[0216] The second magnetic body 1142 and the first magnetic body 1143 may have the same polarity as each other. For example, the second magnetic body 1142 may be a magnet having an N pole, and the first magnetic body 1143 may be a magnet having an N pole. Alternatively, conversely, the second magnetic body 1142 may be a magnet having an S pole, and the first magnetic body 1143 may be a magnet having an S pole.

[0217] For example, the first pole face of the first magnetic body 1143 and the second pole face of the second magnetic body 1142 facing the first pole face may have the same polarity as each other.

[0218] The second magnetic body 1142 and the first magnetic body 1143 can generate a repulsive force between each other due to the above-described polarity. With such a configuration, the above-described repulsive force can be applied to the second member 1131a or the holder 1131 coupled to the second magnetic body 1142, and the first member 1126 or the first housing 1120 coupled to the first magnetic body 1143. At this time, the repulsive force applied to the second member 1131a can be transmitted to the holder 1131 coupled to the second member 1131a. Thereby, the tilt guide portion 1141 disposed between the second member 1131a and the first member 1126 can be pressurized by the repulsive force. Further, the repulsive force can also be transmitted to the housing and the mover. Therefore, the housing and the mover can be pressurized against each other by the repulsive force. In other words, the repulsive force can correspond to a holding force for maintaining the position between the housing and the mover. That is, the repulsive force can maintain the tilt guide portion 1141 in a position between the holder 1131 and the first housing 1120 (or the first member 1126). With such a configuration, the position between the mover 1130 and the first housing 1120 can be maintained even during X-axis tilt or Y-axis tilt. Also, the tilt guide portion can be in close contact with the first member 1126 and the holder 1131 due to the repulsive force between the first magnetic body 1143 and the second magnetic body 1142. In other words, the repulsive force by the first magnetic body 1143 and the second magnetic body 1142 may be a holding force for the position between the holder 1131 and the first housing 1120.

[0219] The first drive unit 1150 includes a drive magnet 1151, a drive coil 1152, a hall sensor unit 1153, a first substrate unit 1154, and a yoke unit 1155. The details thereof will be described later. Also, the yoke unit 1155 may be referred to as the "first yoke unit" in the first camera actuator. Further, the yoke unit in the second camera actuator may be referred to as the "second yoke unit".

[0220] FIG. 6a is a perspective view of a first housing of a first camera actuator according to an embodiment, FIG. 6b is a perspective view in a direction different from that of FIG. 6a, and FIG. 6c is a front view of the first housing of the first camera actuator according to the embodiment.

[0221] Referring to FIGS. 6a to 6c, the first housing 1120 according to the embodiment may include a first housing side portion 1121 to a fourth housing side portion 1124. Further, the first member 1126 may be coupled to the first housing 1120 to be integrally formed. Therefore, the first member 1126 may be a configuration included in the first housing 1120. Alternatively, the first housing 1120 may include the first member 1126.

[0222] The first housing side portion 1121 and the second housing side portion 1122 may be arranged to face each other. Also, the third housing side portion 1123 and the fourth housing side portion 1124 may be arranged to face each other.

[0223] Also, the third housing side portion 1123 and the fourth housing side portion 1124 may be arranged between the first housing side portion 1121 and the second housing side portion 1122.

[0224] 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. Also, the third housing side portion 1123 may be the bottom surface of the first housing 1120. Further, the fourth housing side portion 1124 may be the upper surface of the first housing 1120. Also, the description of the direction can be similarly applied to the above-described content.

[0225] Also, the first housing side portion 1121 may include a first housing hole 1121a. A third coil, which will be described later, may be located in the first housing hole 1121a.

[0226] Also, the second housing side portion 1122 may include a second housing hole 1122a. Also, a fourth coil 1152b, which will be described later, may be located in the second housing hole 1122a.

[0227] Also, the first housing side portion 1121 and the second housing side portion 1122 may be the side surfaces of the first housing 1120.

[0228] The third coil and the fourth coil can be coupled to the first substrate portion. In an embodiment, the third coil and the fourth coil may be electrically connected to the first substrate portion and a current may flow. Such a current is an element of the electromagnetic force that allows the second camera actuator to tilt with respect to the X-axis.

[0229] Also, the third housing side portion 1123 may include a third housing hole 1123a.

[0230] A fifth coil, which will be described later, may be located in the third housing hole 1123a. Also, the fifth coil 1152c can be electrically connected to and coupled to the first substrate portion in contact with the first housing 1120. Therefore, the fifth coil can be electrically connected to the first substrate portion and receive a current from the first substrate portion. Such a current is an element of the electromagnetic force that allows the second camera actuator to tilt with respect to the Y-axis.

[0231] A first member 1126 can be seated between a first housing side portion 1121 and a fourth housing side portion 1124. As a result, the first member 1126 may be positioned on the third housing side portion 1123. For example, the first member 1126 may be positioned on one side. Based on the third direction, the first member 1126 and the holder may be positioned in sequence.

[0232] The fourth housing side portion 1124 is 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.

[0233] Also, 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. Accordingly, light can pass through the fourth housing hole 1124a and be incident on the optical member.

[0234] Also, the first housing 1120 may include a housing portion 1125 formed by the first housing side portion 1121 to the fourth housing side portion 1124. The first member 1126, the second member 1131a, and the mover 1130 may be positioned as components in the housing portion 1125.

[0235] Further, the first housing 1120 may further include a fifth housing side portion facing the first member 1126. The fifth housing side portion is 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. The fifth housing side portion includes an opening region and can provide a path for the light reflected from the optical member 1132 to travel. The fifth housing side portion includes protrusions or grooves, etc., and can provide easy coupling with other adjacent camera actuators. With such a configuration, while providing an optical path, the coupling force between the fifth housing side portion having an opening formed therein for providing the optical path and other components is improved, and the change in the optical path is minimized by suppressing the movement of the opening due to separation or the like.

[0236] Also, as described above, the first member 1126 may be coupled to the first housing 1120 and may be a configuration included in the first housing 1120. That is, the first housing 1120 may include the first member 1126.

[0237] Also, the first member 1126 may be disposed on the first housing 1120. Alternatively, the first member 1126 may be located within the first housing 1120.

[0238] Also, the first member 1126 can be coupled to the first housing 1120. In an embodiment, the first member 1126 may be located between the first housing side portion 1121 and the second housing side portion 1122. Also, the first member 1126 may be located between the third housing side portion 1123 and the fourth housing side portion 1124.

[0239] Also, the first member 1126 may be located on the third housing side portion 1123 and may be in contact with the third housing side portion from the first housing side portion.

[0240] Further, a first stopper member 1121b may be located on the inner surface of the first housing side portion 1121. Also, a second stopper member 1122b may be located on the inner surface of the second housing side portion 1122.

[0241] The first stopper member 1121b and the second stopper member 1122b may be symmetrically located with respect to the first direction (X-axis direction). The first stopper member 1121b and the second stopper member 1122b may extend in the first direction (X-axis direction). With such a configuration, even if the first member 1126 moves within the first housing 1120, the position can be maintained by the first stopper member 1121b and the second stopper member 1122b. In other words, the first stopper member 1121b and the second stopper member 1122b can maintain the first member 1126 in a position on one side of the first housing 1120.

[0242] Furthermore, the first stopper member 1121b and the second stopper member 1122b can remove factors causing errors such as vibrations by fixing the position of the first member 1126 and fixing the position of the tilt guide portion between the first member 1126 and the mover. Thereby, the first camera actuator according to the embodiment can perform X-axis tilt and Y-axis tilt accurately and precisely.

[0243] Also, the separation distance L2 in the second direction (Y-axis direction) between the first stopper member 1121b and the second stopper member 1122b may be smaller than the maximum length L1 of the first member 1126 in the second direction (Y-axis direction). Therefore, the first member 1126 can be assembled or inserted into the side surface of the first housing 1120 and coupled to the first housing 1120. Further, the holder may be assembled along the first direction with respect to the first housing 1120. Also, as described above, the first member 1126 may be coupled to the first housing 1120 along the side surface, that is, the optical axis direction. Also, the second member may be assembled or inserted along the optical axis direction. Thereby, the second member can penetrate the first member 1126. Thereafter, a plate may be further disposed on the first member 1126.

[0244] Further, the first member 1126 includes a second protrusion groove on which the second protrusion of the tilt guide portion is seated. The second protrusion groove PH2 may be located on the inner surface 1126s1 of the first member 1126. As will be described later, the content described for the first protrusion groove can be similarly applied to the second protrusion groove PH2. For example, there may be a plurality of second protrusion grooves PH2, and they may have a structure having the same or different contact points as the second protrusion of the tilt guide portion. For example, there may be two second protrusion grooves PH2, and they may have a four-point and an eight-point contact structure. That is, the second protrusion groove PH2 may be formed of a plurality of inclined surfaces. Also, the second protrusion groove PH2 may be a hemispherical groove.

[0245] As a result, in the first member 1126, the protrusion of the tilt guide portion (for example, the second protrusion) is disposed adjacent to the prism within the fourth seating groove, and the protrusion, which is the reference axis of the tilt, is disposed close to the center of gravity of the mover 1130. Thereby, when the holder tilts, the moment for moving the mover 1130 due to the tilt can be minimized. Therefore, since the current consumption for driving the coil is also minimized, the power consumption of the camera actuator can be reduced.

[0246] Further, the first member 1126 may include through holes 1126a and 1126b. There may be a plurality of through holes, and they may be composed of a first through hole 1126a and a second through hole 1126b.

[0247] The first extension portion and the second extension portion of the second member described later can respectively penetrate through the first through hole 1126a and the second through hole 1126b. As a result, a holding force between the second member and the first member may be generated by the repulsive force between the first and second magnetic bodies. In other words, even when the mover tilts, the relative positions between the first housing and the mover can be maintained.

[0248] A second protrusion groove PH2 may be located between the first through hole 1126a and the second through hole 1126b. With such a configuration, the bonding force between the tilt guide portion 1141 and the first member 1126 can be improved, and a decrease in tilt accuracy caused by the movement of the tilt guide portion 1141 within the first housing can be prevented.

[0249] Also, a second groove gr2 may be located on the outer surface 1126s2 of the first member 1126. A first magnetic body can be seated in the second groove gr2. Further, the outer surface 1126s2 of the first member 1126 may face the inner surface of the second member or the member base portion. Furthermore, the second magnetic body seated on the second member and the first magnetic body of the first member 1126 can face each other to generate the repulsive force described above. Therefore, since the first member 1126 presses the tilt guide portion inward or the holder due to the repulsive force, the mover can be separated from the side portion of the third housing by a predetermined distance within the first housing without injecting current into the coil. In other words, the first magnetic body and the second magnetic body can generate a holding force that maintains the position among the mover, the housing, and the tilt guide portion.

[0250] Also, when the first member 1126 is integrated with the first housing 1120, the bonding force between the first member 1126 and the first housing 1120 can be improved, and the reliability of the camera actuator can be improved. Also, when formed separately, the ease of assembly and manufacture of the first member 1126 and the first housing 1120 can be improved.

[0251] Also, in the embodiment, the first member 1126 may include the first through hole 1126a and the second through hole 1126b as described above. Also, the first through hole 1126a and the second through hole 1126b may be arranged side by side in the second direction (Y-axis direction) and overlap each other.

[0252] Further, the first member 1126 may include an upper member UA located above the first through hole 1126a and the second through hole 1126b, and a lower member BA located below the first through hole 1126a and the second through hole 1126b. Accordingly, the first through hole 1126a and the second through hole 1126b may be located at the center of the first member 1126. That is, the first member 1126 may include a connecting member MA located on the side portions of the first through hole 1126a and the second through hole 1126b. That is, the upper member UA and the lower member BA can be connected to each other via the connecting member MA. Also, there may be a plurality of the lower members BA for forming the first and second through holes, and they may be arranged to be spaced apart from each other in the second direction (Y-axis direction).

[0253] Thereby, the first member 1126 can improve its rigidity by having the upper member UA. For example, the rigidity of the first member 1126 can be increased as compared with the case where the upper member UA does not exist. For example, in the present embodiment, the unit of the rigidity may be N / μm. Thereby, the reliability of the first camera actuator according to the embodiment can be improved.

[0254] Also, a first coupling groove 1126k may be located on the outer surface 1126s2 of the first member 1126. The first coupling groove 1126k may be located at the edge of the outer surface 1126s2 of the first member 1126. In particular, the first coupling groove 1126k may be located at the end portions (for example, the left and right side portions) of the outer surface 1126s2 of the first member 1126 and may be located adjacent to the first housing side portion 1121.

[0255] The first coupling groove 1126k may be located corresponding to the second coupling grooves 1121m, 1122m of the first housing side portion 1121 and the second housing side portion 1122. In the embodiment, the first coupling groove 1126k may be located facing the second coupling grooves 1121m, 1122m of the first housing side portion 1121 and the second housing side portion 1122. The second coupling grooves 1121m, 1122m may be located on the side surface that is adjacent to the outer surface 1126s2 of the first member 1126 and forms the same surface.

[0256] In an embodiment, the plurality of first coupling grooves 1126k and second coupling grooves 1121m, 1122m may be provided, and the plurality of first coupling grooves 1126k and second coupling grooves 1121m, 1122m may be symmetrically positioned with respect to the first direction or the second direction.

[0257] Also, a coupling member may be applied to the first coupling groove 1126k and the second coupling grooves 1121m, 1122m. That is, the joining member is applied between the first housing side portion (or the second housing side portion) and the first member 1126, and the coupling force between the first housing 1120 and the first member 1126 can be improved. Such a joining member may include epoxy or the like, but is not limited to such materials.

[0258] Also, the first member 1126 may further include a first protrusion and a second protrusion. The first protrusion may contact the first housing side portion, and the second protrusion may contact the second housing side portion. The first protrusion may extend in the third direction (Z-axis direction) from one end of the outer surface 1126s2 of the first member. The second protrusion may extend in the third direction (Z-axis direction) from the other end of the outer surface 1126s2 of the first member. That is, the first protrusion and the second protrusion may extend toward the holder.

[0259] The position of the first protrusion can be maintained by the first stopper member 1121b, and the position of the second protrusion can be maintained by the second stopper member 1122b. Thereby, the camera actuator according to the embodiment can improve reliability.

[0260] FIG. 7 is a perspective view of an optical member of the first camera actuator according to the embodiment.

[0261] The optical member 1132 can be mounted on the holder. Such an optical member 1132 may be a right-angle prism as a reflecting portion, but is not limited thereto.

[0262] In an embodiment, the optical member 1132 may have a protrusion (not shown) on a part of its outer surface. The optical member 1132 can be easily coupled to the holder through the protrusion (not shown). Also, the holder can be coupled to the optical member 1132 by having a groove or a protrusion.

[0263] Also, the bottom surface 1132b of the optical member 1132 can be seated on the seating surface of the holder. Accordingly, the bottom surface 1132b of the optical member 1132 can correspond to the seating surface of the holder. Further, the bottom surface 1132b of the optical member 1132 may be a reflecting surface. Also, the upper surface of the optical member 1132 may be an incident surface on which light is incident. Also, the back surface of the optical member 1132 may be an exit surface from which light is emitted.

[0264] In an embodiment, the bottom surface 1132b may not be an inclined surface, similar to the seating of the holder. Thereby, it is possible to prevent the prism from moving as the holder moves and the optical member 1132 from being separated from the holder as it moves.

[0265] Also, a groove is formed in the bottom surface 1132b of the optical member 1132, and by applying a joining member, the optical member 1132 can be coupled to the holder. Alternatively, the holder can be coupled to the optical member 1132 by applying a joining member to the groove or protrusion of the holder.

[0266] Also, as described above, the optical member 1132 may not have a structure capable of reflecting light reflected from the outside (e.g., an object) inside the camera module. As in the embodiment, the optical member 1132 may be configured as a single mirror. Also, the optical member 1132 can improve the spatial limitations of the first camera actuator and the second camera actuator by changing the path of the reflected light. Accordingly, it should also be understood that the camera module can provide a high range of magnifications while expanding the optical path while minimizing the thickness. Also, it should be understood that the camera module including the camera actuator according to the embodiment can provide a high range of magnifications while expanding the optical path while minimizing the thickness.

[0267] FIG. 8a is a perspective view of a holder of a first camera actuator according to an embodiment, FIG. 8b is a bottom view of the holder of the first camera actuator according to the embodiment, FIG. 8c is a front view of the holder of the first camera actuator according to the embodiment, FIG. 8d is a rear view of a second member of the first camera actuator according to the embodiment, and FIG. 8e is a bottom view of the second member of the first camera actuator according to the embodiment.

[0268] Referring to FIGS. 8a to 8e, the holder 1131 may include a seating surface 1131k on which the optical member 1132 is seated. The seating surface 1131k may be an inclined surface. Further, the holder 1131 may include a stepped portion above the seating surface 1131k. Also, in the holder 1131, the stepped portion can be coupled to a protruding portion (not shown) of the optical member 1132.

[0269] 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.

[0270] 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 symmetrically arranged with respect to the second holder outer surface 1131S2 based on the first direction (X-axis direction).

[0271] The first holder outer surface 1131S1 may be positioned corresponding to the first housing side portion. That is, the first holder outer surface 1131S1 may be positioned to face the first housing side portion. Also, the second holder outer surface 1131S2 may be positioned corresponding to the second housing side portion. That is, the second holder outer surface 1131S2 may be positioned to face the second housing side portion.

[0272] Further, the outer surface 1131S1 of the first holder may include a first seating groove 1131S1a. Also, the outer surface 1131S2 of the second holder may include a second seating groove 1131S2a. The first seating groove 1131S1a and the second seating groove 1131S2a may be arranged symmetrically with respect to each other with reference to the first direction (X-axis direction).

[0273] Also, the first seating groove 1131S1a and the second seating groove 1131S2a may be arranged so as to overlap in the second direction (Y-axis direction). Further, a third magnet 1151a may be arranged in the first seating groove 1131S1a, and a fourth magnet 1151b may be arranged in the second seating groove 1131S2a. The third magnet 1151a and the fourth magnet 1151b may also be arranged symmetrically with respect to each other with reference to the first direction (X-axis direction). It should be understood that in this specification, the third to fifth magnets can be coupled to the housing by a yoke or a joining member. The polarities of the third magnet and the fourth magnet may be positioned opposite to each other. For example, in the third magnet, the N pole and the S pole may be sequentially arranged in the third direction, and in the fourth magnet, the S pole and the N pole may be sequentially arranged in the third direction. As a modification, by adjusting the current injection or the current direction of the third and fourth coils, the polarities of the third magnet and the fourth magnet can also be positioned the same as each other.

[0274] As described above, according to the positions of the first and second seating grooves and the third and fourth magnets, electromagnetic forces induced by the respective magnets are provided coaxially on the outer surface S1131S1 of the first holder and the outer surface 1131S2 of the second holder. For example, the regions applied on the outer surface S1131S1 of the first holder (for example, the portion where the electromagnetic force is the strongest) and the regions applied on the outer surface S1131S1 of the second holder (for example, the portion where the electromagnetic force is the strongest) may be located on an axis parallel to the second direction (Y-axis direction). Thereby, accurate X-axis tilting can be performed.

[0275] A third magnet 1151a may be arranged in the first seating groove 1131S1a, and a fourth magnet 1151b may be arranged in the second seating groove 1131S2a.

[0276] The outer surface 1131S3 of the third holder is in contact with the outer surface 1131S1 of the first holder and the outer surface 1131S2 of the second holder, and may be an outer surface extending in the second direction (Y-axis direction) from one side of the outer surface 1131S1 of the first holder and the outer surface 1131S2 of the second holder. Further, the outer surface 1131S3 of the third holder may be located between the outer surface 1131S1 of the first holder and the outer surface 1131S2 of the second holder. The outer surface 1131S3 of the third holder may be the bottom surface of the holder 1131. That is, the outer surface 1131S3 of the third holder may be located to face the third housing side portion.

[0277] Further, the outer surface 1131S3 of the third holder may include a third mounting groove 1131S3a. A fifth magnet 1151c may be disposed in the third mounting groove 1131S3a. The outer surface 1131S3 of the third holder may be located to face the third housing side portion 1123.

[0278] Further, the third housing hole 1123a may at least partially overlap with the third mounting groove 1131S3a in the first direction (X-axis direction). Thereby, the fifth magnet 1151c in the third mounting groove 1131S3a and the fifth coil 1152c in the third housing hole 1123a may be located to face each other. Further, by generating an electromagnetic force between the fifth magnet 1151c and the fifth coil 1152c, the second camera actuator can tilt in the Y-axis direction.

[0279] Also, while the X-axis tilt is performed by a plurality of magnets (the third and fourth magnets 1151a, 1151b), the Y-axis tilt is performed only by the fifth magnet 1151c.

[0280] In an embodiment, the third mounting groove 1131S3a may be wider than the first mounting groove 1131S1a or the second mounting groove 1131S2a. With such a configuration, the Y-axis tilt can be performed with the same current control as the X-axis tilt.

[0281] The outer surface 1131S4 of the fourth holder is in contact with the outer surface 1131S1 of the first holder and the outer surface 1131S2 of the second holder, and may be an outer surface extending in the first direction (X-axis direction) from the outer surface 1131S1 of the first holder and the outer surface 1131S2 of the second holder. Further, the outer surface 1131S4 of the fourth holder may be located between the outer surface 1131S1 of the first holder and the outer surface 1131S2 of the second holder. That is, the outer surface 1131S4 of the fourth holder may be located opposite to the first member.

[0282] The outer surface 1131S4 of the fourth holder may include a fourth seating groove 1131S4a. The tilt guide portion 1141 may be located in the fourth seating groove 1131S4a. Further, the second member 1131a and the first member 1126 may be located in the fourth seating groove 1131S4a. Further, the fourth seating groove 1131S4a may include a plurality of regions. It may include a first region AR1, a second region AR2, and a third region AR3.

[0283] The second member 1131a may be located in the first region AR1. That is, the first region AR1 may overlap with the second member 1131a in the first direction (X-axis direction). In particular, the first region AR1 may be a region where the member base portion of the second member 1131a is located. At this time, the first region AR1 may be located on the outer surface 1131S4 of the fourth holder. That is, the first region AR1 may correspond to a region located above the fourth seating groove 1131S4a. In this case, the first region AR1 may not be a region within the fourth seating groove 1131S4a.

[0284] The first member 1126 may be located in the second region AR2. That is, the second region AR2 may overlap with the first member 1126 in the first direction (X-axis direction).

[0285] Further, similar to the first region, the second region AR2 may be located on the outer surface 1131S4 of the fourth holder. That is, the second region AR2 may correspond to a region located above the fourth seating groove 1131S4a.

[0286] The tilt guide portion may be located in the third region AR3. In particular, the base of the tilt guide portion may be located in the third region AR3. That is, the third region AR3 may overlap with the tilt guide portion (for example, the base) in the first direction (X-axis direction).

[0287] Also, the second region AR2 may be located between the first region AR1 and the third region AR3.

[0288] Also, a second member is disposed in the first region AR1, and the second member 1131a may include the first groove gr1. In an embodiment, the second member 1131a may include the first groove gr1 formed on the inner surface 1131aas. Also, as described above, the second magnetic body may be disposed in the first groove gr1.

[0289] Also, as described above, a first member may be disposed in the second region AR2. The first groove gr1 may be located opposite to the second groove gr2. For example, the first groove gr1 may at least partially overlap with the second groove gr2 in the third direction (Z-axis direction).

[0290] Also, the repulsive force generated by the second magnetic body can be transmitted to the fourth seating groove 1131S4a of the holder 1131 via the second member. Therefore, the holder can apply a force to the tilt guide portion in the same direction as the repulsive force generated by the second magnetic body.

[0291] The first member may include a second groove gr2 that faces the first groove gr1 formed on the outer surface. Also, as described above, the first member may include a second protrusion groove formed on the inner surface. Also, a second protrusion can be seated in the second protrusion groove.

[0292] Also, similar to the second magnetic body, the repulsive force generated by the first magnetic body and the second magnetic body can be applied to the first member. Thereby, the first member and the second member can press the tilt guide portion disposed between the first member and the holder 1131 through the repulsive force.

[0293] The tilt guide portion 1141 may be disposed in the third region AR3.

[0294] Further, the first protrusion groove PH1 may be located in the fourth seating groove 1131S4a. Further, the first protrusion of the tilt guide portion 1141 may be received in the first protrusion groove PH1. Accordingly, 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 similarly applied to the second protrusion groove and the second protrusion PR2. That is, the maximum diameter of the second protrusion groove can correspond to the maximum diameter of the second protrusion PR2. Accordingly, the second protrusion can be in contact with the second protrusion groove. With such a configuration, the first axial tilt with respect to the first protrusion and the second axial tilt with respect to the second protrusion can easily occur, and the tilt radius can be improved.

[0295] In the embodiment, there may be a plurality of first protrusion grooves PH1. For example, any one of the first protrusion groove PH1 and the second protrusion groove PH2 may include a first-1 protrusion groove PH1a and a first-2 protrusion groove PH1b. Hereinafter, the case where the first protrusion groove PH1 includes the first-1 protrusion groove PH1a and the first-2 protrusion groove PH1b will be described. Further, the following description can be similarly applied to the second protrusion groove PH2. For example, the second protrusion groove PH2 includes a second-1 protrusion groove and a second-2 protrusion groove, and the description of the first-1 protrusion groove can be applied to the second-1 protrusion groove, and the description of the first-2 protrusion groove can be applied to the second-2 protrusion groove.

[0296] The first-1 protrusion groove PH1a and the first-2 protrusion groove PH1b may be arranged side by side in the first direction (x-axis direction). The maximum widths of the first-1 protrusion groove PH1a and the first-2 protrusion groove PH1b may be the same as each other.

[0297] 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 bottom surface and an inclined surface. At this time, the plurality of protrusion grooves may have different numbers of inclined surfaces. Also, the widths of the bottom surfaces in the protrusion grooves may be different.

[0298] For example, the first first protrusion groove PH1a may include a first groove bottom surface LS1 and a first inclined surface CS1. The first second protrusion groove PH1b may include a second groove bottom surface LS2 and a second inclined surface CS2.

[0299] At this time, the first groove bottom surface LS1 and the second groove bottom surface LS2 may have different widths from each other. The width of the first groove bottom surface LS1 may be smaller than the width of the second groove bottom surface LS2.

[0300] Also, the number of the first inclined surfaces CS1 in contact with the first groove bottom 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 more than the number of the second inclined surfaces CS2.

[0301] With such a configuration, it is possible to easily compensate for the assembly tolerance of the first protrusion that is seated on the first protrusion groove PH1. For example, since the number of the first inclined surfaces CS1 is more than the number of the second inclined surfaces CS2, the first protrusion contacts more inclined surfaces, and the position of the first protrusion can be maintained more accurately by the first first protrusion groove PH1a.

[0302] In contrast, in the first second protrusion groove PH1b, since the number of the inclined surfaces in contact with the first protrusion is smaller than that in the first first protrusion groove PH1a, the position of the first protrusion can be easily adjusted.

[0303] 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). Also, the second groove bottom surface LS2 extends in the first direction (X-axis direction), and the first protrusion can easily move in the first direction (X-axis direction) in a state where the first protrusion is in contact with the second inclined surfaces CS2. That is, in the first second protrusion groove PH1b, the position of the first protrusion can be easily adjusted.

[0304] Also, in the present embodiment, the first region AR1, the second region AR2, and the third region AR3 may have different heights in the first direction (X-axis direction). In the embodiment, the height of the first region AR1 in the first direction (X-axis direction) may be even greater than those of the second region AR2 and the third region AR3. Therefore, a step can be located between the first region AR1 and the second region AR2.

[0305] Further, the second member 1131a may include the first groove gr1. In other words, the first groove gr1 may be located on the inner surface of the member base portion 1131aa. Also, the second magnetic body can be seated in the first groove gr1. Further, there may be a plurality of first grooves gr1 according to the number of the second magnetic bodies. That is, the first grooves gr1 may be formed in a number corresponding to the number of the second magnetic bodies.

[0306] Also, the second member 1131a may include a member base portion 1131aa, a first extension portion 1131ab, and a second extension portion 1131ac.

[0307] The member base portion 1131aa may be located on the outermost side of the first camera actuator. The member base portion 1131aa may be located outside the first member. That is, the first member may be located between the member base portion 1131aa and the tilt guide portion.

[0308] The first extension portion 1131ab may extend from the edge of the member base portion 1131aa in the third direction (Z-axis direction). That is, the first extension portion 1131ab may extend from the member base portion 1131aa toward the holder 1131. The same applies to the second extension portion 1131ac. Also, the second extension portion 1131ac may extend from the edge of the member base portion 1131aa in the third direction (Z-axis direction). In the embodiment, the first extension portion 1131ab and the second extension portion 1131ac may be located at the edge of the member base portion 1131aa in the second direction (Y-axis direction). Also, the first extension portion 1131ab and the second extension portion 1131ac may be disposed between the upper member and the lower member.

[0309] Therefore, the second member 1131a can have a groove formed by the first extension 1131ab and the second extension 1131ac. That is, the groove may be located between the first extension 1131ab and the second extension 1131ac. Therefore, the first extension 1131ab and the second extension 1131ac can be connected to each other only by the member base portion 1131aa. With such a configuration, the second member 1131a can continuously receive the repulsive force from the second magnetic body seated at the center of the member base portion 1131aa, particularly in the first groove gr1.

[0310] In addition, since the second member 1131a is coupled to the holder and moves during X-axis tilting and Y-axis tilting, the rigidity of the second member 1131a may be greater than the rigidity of the first member.

[0311] Furthermore, as described above, the first member according to the embodiment can enhance the rigidity by having an upper member and a lower member. With such a configuration, the rigidity difference between the second member and the first member can be reduced. As a result, when the second member 1131a and the holder 1131 coupled to the second member 1131a are tilted together in the X-axis or Y-axis direction, the second member 1131a may have a reduced adjacent distance from the first member and may contact the first member. Therefore, by having the improved rigidity as described above, the first member can easily operate as a stopper. That is, the reliability of the camera actuator can be improved.

[0312] Furthermore, since the rigidity difference between the first member and the second member is reduced, damage due to contact during tilting can be minimized. That is, the reliability of the camera actuator can be improved.

[0313] In addition, the first extension 1131ab can be spaced apart from the second extension 1131ac in the second direction (Y-axis direction) to form a separation space. In such a separation space, the first member and the tilt guide portion can be seated. Also, the second magnetic body and the first magnetic body may be located in the separation space.

[0314] Further, the first extension part 1131ab and the second extension part 1131ac may have the same length in the third direction (Z-axis direction). Therefore, the bonding force, weight, etc. are formed in a well-balanced manner, and the tilting of the holder is accurately performed without tilting to one side.

[0315] Also, the first extension part 1131ab and the second extension part 1131ac can be coupled to the holder. It should be understood that the coupling in this specification can be performed by a joining member in addition to the above-described protrusion and groove structures. In an embodiment, the first extension part 1131ab and the second extension part 1131ac may include a third coupling groove 1131k formed in the third direction (Z-axis direction). Further, in the fourth seating groove 1131S4a, a coupling protrusion 1131m may be located in a region overlapping the first extension part 1131ab, the second extension part 1131ac, and the third direction (Z-axis direction). The coupling protrusion 1131m may be located corresponding to the third coupling groove 1131k.

[0316] For example, a joining member such as epoxy may be applied to the third coupling groove 1131k. Also, the coupling protrusion 1131m may be inserted into the third coupling groove 1131k of the first extension part 1131ab and the second extension part 1131ac. With such a configuration, the second member 1131a and the holder 1131 can be coupled to each other. Also, by such coupling, the repulsive force applied to the second member 1131a can be transmitted to the holder 1131.

[0317] However, as described above, it should be understood that the positions of the protrusion and the groove structure can be interchanged with each other.

[0318] FIG. 9a is a perspective view of a tilt guide part of a first camera actuator according to an embodiment, FIG. 9b is a perspective view in a direction different from FIG. 9a, and FIG. 9c is a view seen along FF' of FIG. 9a.

[0319] The tilt guide portion 1141 according to the embodiment may include a base BS, a first protruding portion PR1 protruding from the first surface 1141a of the base BS, and a second protruding portion PR2 protruding from the second surface 1141b of the base BS. Also, depending on the structure, the first protruding portion and the second protruding portion may have opposite formed surfaces, but this will be described below with reference to the drawings. Further, the first protruding portion PR1 and the second protruding portion PR2 may be integrally formed with the base BS, and as shown in the drawings, it should be understood that the first protruding portion PR1 and the second protruding portion PR2 may be spherical like balls. Also, the first protruding portion PR1 and the second protruding portion PR2 may be balls instead of protrusions or protruding shapes.

[0320] First, the base BS may include a first surface 1141a and a second surface 1141b facing the first surface 1141a. That is, the first surface 1141a may be spaced apart from the second surface 1141b in the third direction (Z-axis direction), and may be an outer surface facing each other or facing each other within the tilt guide portion 1141.

[0321] The tilt guide portion 1141 may include a first protruding portion PR1 extending to one side on the first surface 1141a. According to an embodiment, the first protruding portion PR1 may protrude from the first surface 1141a toward the holder. There may be a plurality of first protruding portions PR1, and the first-1 protruding portion PR1a and the first-2 protruding portion PR1b may be included.

[0322] The first-1 protruding portion PR1a and the first-2 protruding portion PR1b may be positioned side by side in the first direction (X-axis direction). In other words, the first-1 protruding portion PR1a and the first-2 protruding portion PR1b may overlap in the first direction (X-axis direction). Also, in the embodiment, the first-1 protruding portion PR1a and the first-2 protruding portion PR1b may be bisected by an imaginary line extending in the first direction (X-axis direction).

[0323] Also, the first-1 protruding portion PR1a and the first-2 protruding portion PR1b may have a curvature and may be, for example, hemispherical. Also, the first-1 protruding portion PR1a and the first-2 protruding portion PR1b may contact the first groove of the housing at the point farthest from the first surface 1141a of the base BS.

[0324] Further, an alignment groove 1141aa may be located on the first surface 1141a. The alignment groove 1141aa is disposed on one side of the first surface 1141a and can provide the assembly position or assembly direction of the tilt guide portion 1141 during the assembly process.

[0325] Also, the tilt 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. Also, there may be a plurality of second protrusions PR2, and in an embodiment, it may include a second - 1 protrusion PR2a and a second - 2 protrusion PR2b.

[0326] The second - 1 protrusion PR2a and the second - 2 protrusion PR2b may be arranged side by side in the second direction (Y - axis direction). That is, the second - 1 protrusion PR2a and the second - 2 protrusion PR2b may overlap in the second direction (Y - axis direction). Also, in an embodiment, the second - 1 protrusion PR2a and the second - 2 protrusion PR2b may be bisected by an imaginary line extending in the second direction (Y - axis direction).

[0327] The second - 1 protrusion PR2a and the second - 2 protrusion PR2b may have a curvature, for example, they may be hemispherical. Also, the second - 1 protrusion PR2a and the second - 2 protrusion PR2b may contact the second member 1131a at a point separated from the second surface 1141b of the base BS.

[0328] The first protrusion PR1a and the second protrusion PR1b may be located in the region between the second protrusion PR2a and the second protrusion PR2b in the second direction. According to an embodiment, the first protrusion PR1a and the second protrusion PR1b may be located at the center of the spaced-apart space between the second protrusion PR2a and the second protrusion PR2b in the second direction. With such a configuration, the actuator according to the embodiment can make the angular ranges of the X-axis tilt the same with respect to the X-axis. In other words, with reference to the first protrusion PR1a and the second protrusion PR1b, the tilt guide portion 1141 and the holder can provide the same range (for example, positive / negative range) in which the holder can tilt in the Y-axis direction with respect to the Y-axis.

[0329] Further, the second protrusion PR2a and the second protrusion PR2b may be located in the region between the first protrusion PR1a and the second protrusion PR1b in the first direction. According to an embodiment, the second protrusion PR2a and the second protrusion PR2b may be located at the center of the spaced-apart space between the first protrusion PR1a and the second protrusion PR1b in the first direction. With such a configuration, the actuator according to the embodiment can make the angular ranges of the Y-axis tilt the same with respect to the Y-axis. In other words, with reference to the second protrusion PR2a and the second protrusion PR2b, the tilt guide portion 1141 and the holder can provide the same range (for example, positive / negative range) in which the holder can tilt in the Y-axis direction with respect to the Y-axis.

[0330] 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. Also, the third outer line M3 and the fourth outer line M4 may be located between the first outer line M1 and the second outer line M2. Further, the first outer line M1 and the second outer line M2 may be perpendicular to the first direction (X-axis direction), and the third outer line M3 and the fourth outer line M4 may be parallel to the first direction (X-axis direction).

[0331] At this time, the first protrusion PR1 may be located 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 and third virtual lines VL1, VL1' are lines that bisect the base BS in the second direction (Y-axis direction). Thereby, the tilt guide portion 1141 can easily perform X-axis tilting through the first protrusion PR1. Also, since the tilt guide portion 1141 performs X-axis tilting with reference to the first virtual line VL1, the rotational force can be uniformly applied to the tilt guide portion 1141. Therefore, X-axis tilting can be performed with high accuracy, and the reliability of the element can be improved.

[0332] Also, the first-1 protrusion PR1a and the first-2 protrusion PR1b may be symmetrically arranged with reference to the first virtual line VL1 and the second virtual line VL2. Alternatively, the first-1 protrusion PR1a and the first-2 protrusion PR1b may be symmetrically located with reference to the first center point. With such a configuration, the supporting force supported by the first protrusion PR1 during X-axis tilting can be equally applied to the upper side and the lower side with reference to the second virtual line VL2. Therefore, the reliability of the tilt guide portion 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 and fourth virtual lines VL2, VL2' are lines that bisect the base BS in the first direction (X-axis direction).

[0333] Also, the first center point may be the intersection of the first virtual line VL1 and the second virtual line VL2. Alternatively, it may be a point corresponding to the center of gravity according to the shape of the tilt guide portion 1141.

[0334] Further, 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. Also, the seventh outer line M3' and the eighth outer line M4' may be located between the fifth outer line M1' and the sixth outer line M2'. Further, the fifth outer line M1' and the sixth outer line M2' may be perpendicular to the first direction (X-axis direction), and the seventh outer line M3' and the eighth outer line M4' may be parallel to the first direction (X-axis direction).

[0335] Furthermore, since the tilt guide portion 1141 performs the Y-axis tilt with reference to the fourth virtual line VL2', a rotational force can be uniformly applied to the tilt guide portion 1141. Therefore, the Y-axis tilt can be performed accurately, and the reliability of the element can be improved.

[0336] Also, the second-1 protrusion PR2a and the second-2 protrusion PR2b may be symmetrically arranged with respect to the third virtual line VL1' on the fourth virtual line VL2'. Alternatively, the second-1 protrusion PR2a and the second-2 protrusion PR2b may be symmetrically located with respect to the second center point. With such a configuration, the support force supported by the second protrusion PR2 during Y-axis tilt can be equally applied to the upper and lower sides of the tilt guide portion with reference to the fourth virtual line VL2'. Therefore, the reliability of the tilt guide portion 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'. Also, the second center point may be the intersection of the third virtual line VL1' and the fourth virtual line VL2'. Alternatively, it may be a point corresponding to the center of gravity according to the shape of the tilt guide portion 1141.

[0337] Also, the interval DR2 in the first direction (X-axis direction) between the first-1 protrusion PR1a and the first-2 protrusion PR1b may be larger than the length of the second protrusion PR2 in the first direction (X-axis direction). Therefore, when performing X-axis tilt with reference to the first-1 protrusion PR1a and the first-2 protrusion PR1b, the resistance by the second protrusion PR2 can be minimized.

[0338] Correspondingly, the interval ML2 in the second direction (Y-axis direction) between the second-1 protruding portion PR2a and the second-2 protruding portion PR2b may be larger than the length of the first protruding portion PR1 in the second direction (Y-axis direction). Therefore, when performing Y-axis tilt with respect to the second-1 protruding portion PR2a and the second-2 protruding portion PR2b as a reference, the resistance by the first protruding portion PR1 can be minimized.

[0339] FIG. 10 is a diagram showing a first driving unit of the first camera actuator according to the embodiment.

[0340] Referring to FIG. 10, the first driving unit 1150 includes a driving magnet 1151, a driving coil 1152, a hall sensor unit 1153, a first substrate unit 1154, and a yoke unit 1155.

[0341] Also, as described above, the driving magnet 1151 may include a third magnet 1151a, a fourth magnet 1151b, and a fifth magnet 1151c that provide a driving force by electromagnetic force. The third magnet 1151a, the fourth magnet 1151b, and the fifth magnet 1151c may be located on the outer surface of the holder 1131, respectively.

[0342] Also, the driving coil 1152 may include a plurality of coils. In the embodiment, the driving coil 1152 may include a third coil 1152a, a fourth coil 1152b, and a fifth coil 1152c.

[0343] The third coil 1152a may be located to face the third magnet 1151a. Therefore, the third coil 1152a may be located in the first housing hole 1121a of the first housing side portion 1121 as described above. Also, the fourth coil 1152b may be located to face the fourth magnet 1151b. Therefore, the fourth coil 1152b may be located in the second housing hole 1122a of the second housing side portion 1122 as described above.

[0344] The second camera actuator according to the embodiment can rotate and control the mover 1130 in the first axis (X-axis direction) or the second axis (Y-axis direction) by the electromagnetic force between the drive magnet 1151 and the drive coil 1152, so as to minimize the occurrence of decentering and tilting during the realization of OIS and provide the best optical characteristics.

[0345] Also, according to the embodiment, by realizing OIS through the tilt guide portion 1141 of the rotating portion 1140 disposed between the first housing 1120 and the mover 1130, the size limitation of the actuator can be eliminated, and an ultra-thin and ultra-small camera actuator and a camera module including the same can be provided.

[0346] The first substrate portion 1154 may include a first substrate side portion 1154a, a second substrate side portion 1154b, and a third substrate side portion 1154c.

[0347] The first substrate side portion 1154a and the second substrate side portion 1154b may be disposed opposite to each other. Also, the third substrate side portion 1154c may be located between the first substrate side portion 1154a and the second substrate side portion 1154b.

[0348] Also, the first substrate side portion 1154a may be located between the first housing side portion and the shield can, and the second substrate side portion 1154b may be located between the second housing side portion and the shield can. Also, the third substrate side portion 1154c may be located between the third housing side portion and the shield can, or may be the bottom surface of the first substrate portion 1154.

[0349] The first substrate side portion 1154a can be coupled to and electrically connected to the third coil 1152a. Also, the first substrate side portion 1154a can be coupled to and electrically connected to the first hall sensor 1153a.

[0350] The second substrate side portion 1154b can be coupled to and electrically connected to the fourth coil 1152b. It should also be understood that the second substrate side portion 1154b can be coupled to and electrically connected to the first Hall sensor.

[0351] The third substrate side portion 1154c can be coupled to and electrically connected to the fifth coil 1152c. Also, the third substrate side portion 1154c can be coupled to and electrically connected to the second Hall sensor 1153b.

[0352] The yoke portion 1155 may include a third yoke 1155a, a fourth yoke 1155b, and a fifth yoke 1155c. The third yoke 1155a is located within the first seating groove and can be coupled to the third magnet 1151a. Also, the fourth yoke 1155b is located within the second seating groove and can be coupled to the fourth magnet 1151b. Further, the fifth yoke 1155c is located within the third seating groove and can be coupled to the fifth magnet 1151c. Such third to fifth yokes 1155a - 1155c enable the third to fifth magnets 1151a - 1151c to be easily seated in the first to third seating grooves and coupled to the housing.

[0353] FIG. 11a is a perspective view of a first camera actuator according to an embodiment, FIG. 11b is a view taken along line PP' of FIG. 11a, and FIG. 11c is a view taken along line QQ' of FIG. 11a.

[0354] Referring to FIGS. 11a to 11c, the third coil 1152a may be located on the first housing side portion 1121, and the third magnet 1151a may be located on the first outer surface 1131S1 of the holder 1131. Accordingly, the third coil 1152a and the third magnet 1151a may be positioned to face each other. The third magnet 1151a may at least partially overlap the third coil 1152a in the second direction (Y - axis direction).

[0355] Further, the fourth coil 1152b may be located on the second housing side portion 1122, and the fourth magnet 1151b may be located on the second holder outer surface 1131S2 of the holder 1131. Therefore, the fourth coil 1152b and the fourth magnet 1151b may be positioned to face each other. The fourth magnet 1151b may at least partially overlap with the fourth coil 1152b in the second direction (Y-axis direction).

[0356] Also, 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).

[0357] With such a configuration, the electromagnetic force applied to the outer surface of the holder (the first holder outer surface and the second holder outer surface) is located on the parallel axis in the second direction (Y-axis direction), and the X-axis tilt can be performed accurately and precisely.

[0358] Also, 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 can be seated in the second protrusion groove PH2 formed on one side surface of the first member 1126. Also, when performing the X-axis tilt, the second protrusions PR2a and PR2b may be the tilt reference axis (or rotation axis). Therefore, the tilt guide portion 1141 and the mover 1130 can move along the second direction.

[0359] Also, as described above, the first hall sensor 1153a may be located outside for electrical connection and coupling with the first substrate portion 1154. However, it is not limited to such a position.

[0360] Further, the fifth coil 1152c may be located on the third housing side portion 1123, and the fifth magnet 1151c may be located on the third outer surface 1131S3 of the holder 1131. The fifth coil 1152c and the fifth magnet 1151c may at least partially overlap in the first direction (X-axis direction). Thereby, the intensity of the electromagnetic force between the fifth coil 1151c and the fifth magnet 1151c can be easily controlled.

[0361] As described above, the tilt guide portion 1141 may be located on the fourth outer surface 1131S4 of the holder 1131. Further, the tilt guide portion 1141 can be seated in the fourth seating groove 1131S4a on the fourth outer surface. As described above, the fourth seating groove 1131S4a may include the first region AR1, the second region AR2, and the third region AR3.

[0362] The second member 1131a is disposed in the first region AR1, and the second member 1131a may include the first groove gr1 formed on the inner surface. Further, as described above, the second magnetic body 1142 is disposed in the first groove gr1, and the repulsive force RF2 generated by the second magnetic body 1142 can be transmitted to the fourth seating groove 1131S4a of the holder 1131 via the second member 1131a (RF2'). Therefore, the holder 1131 can apply a force to the tilt guide portion 1141 in the same direction as the repulsive force RF2 generated by the second magnetic body 1142.

[0363] The first member 1126 may be disposed in the second region AR2. The first member 1126 may include a second groove gr2 facing the first groove gr1. Further, the first member 1126 may include a second protrusion groove PH2 disposed on a surface corresponding to the second groove gr2. Also, a repulsive force RF1 generated by the first magnetic body 1143 can be applied to the first member 1126. Thereby, the first member 1126 and the second member 1131a can press the tilt guide portion 1141 disposed between the first member 1126 and the holder 1131 through the generated repulsive forces RF1 and RF2'. Therefore, even after the holder is tilted about the X-axis or the Y-axis by the current applied to the third and fourth coils or the fifth coil 1152c, the connection between the holder 1131, the first housing 1120, and the tilt guide portion 1141 can be maintained.

[0364] The tilt guide portion 1141 may be disposed in the third region AR3. The tilt guide portion 1141 may include the first protrusion PR1 and the second protrusion PR2 as described above. At this time, the first protrusion PR1 and the second protrusion PR2 may be disposed on the second surface 1141b and the first surface 1141a of the base BS, respectively. Thus, also in other embodiments described below, the first protrusion PR1 and the second protrusion PR2 may be variously positioned on the opposing surfaces of the base BS.

[0365] The first protrusion groove PH1 may be located in the fourth seating groove 1131S4a. Further, the first protrusion PR1 of the tilt guide portion 1141 may be received 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 similarly applied to the second protrusion groove PH2 and the second protrusion PR2. That is, the maximum diameter of the second protrusion groove PH2 can correspond to the maximum diameter of the second protrusion PR2. Therefore, the second protrusion PR2 can be in contact with the second protrusion groove PH2. With such a configuration, a first-axis tilt with reference to the first protrusion PR1 and a second-axis tilt with reference to the second protrusion PR2 can be easily generated, and the tilt radius can be improved.

[0366] Further, the tilt guide portion 1141 may be arranged side by side with the second member 1131a and the first member 1126 in the third direction (Z-axis direction), and the tilt guide portion 1141 may overlap with the optical member 1132 in the first direction (X-axis direction). More specifically, in the embodiment, the first protrusion PR1 may overlap with the optical member 1132 in the first direction (X-axis direction). Further, at least a part of the first protrusion PR1 may overlap with the fifth coil 1152c or the fifth magnet 1151c in the first direction (X-axis direction). That is, each protrusion, which is the center axis of tilt in the camera actuator according to the embodiment, may be located adjacent to the center of gravity of the mover 1130. Thereby, the tilt guide portion may be located adjacent to the center of gravity of the holder. Thereby, the camera actuator according to the embodiment can minimize the moment value for tilting the holder, and can also minimize the current consumption applied to a coil or the like for tilting the holder, so that the power consumption and the reliability of the element can be improved.

[0367] Furthermore, the second magnetic body 1142 and the first magnetic body 1143 may not overlap with the fifth coil 1152c or the optical member 1132 in the first direction (X-axis direction). In other words, in the embodiment, the second magnetic body 1142 and the first magnetic body 1143 may be arranged separated from the fifth coil 1152c or the optical member 1132 in the third direction (Z-axis direction). Thereby, the fifth coil 1152c can minimize the magnetic force transmitted from the second magnetic body 1142 and the first magnetic body 1143. Therefore, the camera actuator according to the embodiment can easily perform vertical driving (Y-axis tilt) and can minimize the power consumption.

[0368] Furthermore, as described above, the second hall sensor 1153b located inside the fifth coil 1153c senses a change in magnetic flux, and thereby, position sensing between the fifth magnet 1151c and the second hall sensor 1153b can be performed. At this time, the offset voltage of the second hall sensor 1153b may change due to the influence of the magnetic field formed by the second magnetic body 1142 and the first magnetic body 1143.

[0369] Based on the outermost surface, in the first camera actuator according to the embodiment, the second member 1131a, the second magnetic body 1142, the first magnetic body 1143, the first member 1126, the tilt guide portion 1141, and the holder 1131 may be arranged in this order in the third direction. However, since the second magnetic body is located within the second member and the first magnetic body is located within the first member, they may be arranged in the order of the second member, the first member, the tilt guide portion, and the holder.

[0370] Also, in the embodiment, the separation distance in the third direction of the second magnetic body 1142 and the first magnetic body 1143 from the holder 1131 (or the optical member 1132) may be larger than the separation distance between the tilt guide portions 1141. Thereby, the second hall sensor 1153b at the lower part of the holder 1131 may also be arranged at a predetermined distance from the second magnetic body 1142 and the first magnetic body 1143. Therefore, the influence of the magnetic field formed by the second magnetic body 1142 and the first magnetic body 1143 on the second hall sensor 1153b can be minimized, and it is possible to prevent the hall voltage from concentrating positively or negatively and saturating. That is, with such a configuration, it is possible to provide a range in which hall calibration can be performed on the hall electrode. Furthermore, temperature also affects the electrodes of the hall sensor, and the resolution of the camera lens changes depending on the temperature. However, in the embodiment, since the concentration of the hall voltage positively or negatively is prevented and compensation for the resolution of the lens is also performed accordingly, it is possible to easily prevent a decrease in resolution.

[0371] Also, circuit design for compensating the offset of the output (i.e., the hall voltage) of the second hall sensor 1153b can be easily performed.

[0372] Also, according to the embodiment, a part of the tilt guide portion 1141 may be located outside the outer surface of the fourth holder compared to the outer surface of the fourth holder of the holder 1131.

[0373] The tilt guide portion 1141 can be seated in the fourth seating groove 1131S4a with reference to the base BS, excluding the first protruding portion PR1 and the second protruding portion PR2. In other words, 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). Such a configuration facilitates miniaturization.

[0374] Further, the maximum length of the tilt guide portion 1141 in the third direction (Z-axis direction) may be larger 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 protruding portion PR2 can be positioned between the outer surface of the fourth holder and the first member 1126. That is, at least a part of the second protruding portion PR2 may be located in the direction opposite to the third direction (Z-axis direction) with respect to the holder 1131. In other words, the holder 1131 may be separated from the end of the second protruding portion PR2 (the portion in contact with the second protruding groove) by a predetermined distance in the third direction (Z-axis direction).

[0375] Also, the front surface 1131aes of the second member 1131a according to the embodiment may be separated 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 in 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 inside the front surface 1126es of the first member 1126. For this purpose, the first member 1126 may have a structure that extends and bends inward. Also, a part of the second member 1131a may be positioned in a groove formed by the extended and bent structure of the first member 1126.

[0376] With such a configuration, since the second member 1131a is positioned inside the first member 1126, space efficiency can be improved and miniaturization can be achieved. Further, even when driving by electromagnetic force (tilting or rotating of the mover 1130) is performed, the second member 1131a does not protrude outside the first member 1126, so that contact with surrounding elements can be prevented. Therefore, reliability can be improved.

[0377] In addition, a predetermined separation space may exist between the second magnetic body 1142 and the first magnetic body 1143. In other words, the second magnetic body 1142 and the first magnetic body 1143 may face each other with the same polarity.

[0378] FIG. 12a is a perspective view of a first camera actuator according to an embodiment, FIG. 12b is a view seen along SS' of FIG. 12a, and FIG. 12c is an exemplary view of the movement of the first camera actuator shown in FIG. 12b.

[0379] Referring to FIGS. 12a to 12c, Y-axis tilting can be performed with the first camera actuator according to the embodiment. That is, by rotating in the first direction (X-axis direction), OIS can be realized.

[0380] In an embodiment, the fifth magnet 1151c disposed below the holder 1131 forms an electromagnetic force with the fifth coil 1152c, thereby tilting or rotating the mover 1130 with respect to the second direction (Y-axis direction).

[0381] Specifically, the repulsive force between the second magnetic body 1142 and the first magnetic body 1143 can be transmitted to the second member 1131a and the first member 1126, and finally transmitted to the tilt guide portion 1141 disposed between the first member 1126 and the holder 1131. As a result, the tilt guide portion 1141 can be pressed by the mover 1130 and the first housing 1120 due to the repulsive force described above.

[0382] In addition, the second protrusion PR2 may be supported by the first member 1126. At this time, in the embodiment, the tilt guide portion 1141 can rotate or tilt with respect to the second protrusion PR2 protruding toward the first member 1126 as a reference axis (or rotation axis), that is, with respect to the second direction (Y-axis direction). In other words, the tilt guide portion 1141 can rotate or tilt in the first direction (X-axis direction) with respect to the second protrusion PR2 protruding toward the first member 1126 as a reference axis (or rotation axis).

[0383] For example, by rotating the mover 1130 by a first angle θ1 in the X-axis direction (X1→X1a) due to the first electromagnetic forces F1A and F1B between the fifth magnet 1151c disposed in the third seating groove and the fifth coil 1152c disposed on the third substrate side portion, OIS can be realized.

[0384] Conversely, by rotating the mover 1130 by a first angle θ1 in the opposite direction of the X-axis direction (X1→X1b) due to the first electromagnetic forces F1A and F1B between the fifth magnet 1151c disposed in the third seating groove and the fifth coil 1152c disposed on the third substrate side portion, OIS can be realized.

[0385] The first angle θ1 may be ±1° to ±3°, but is not limited thereto.

[0386] Hereinafter, in the first camera actuator according to various embodiments, the electromagnetic force can generate a force in the described direction to move the mover, and can also generate a force in a different direction to move the mover in the described direction. That is, the described direction of the electromagnetic force means 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 can act in the third direction or the opposite direction of the third direction.

[0387] Also, the center MC1 of the second magnetic body 1142 and the center MC2 of the first magnetic body 1143 may be arranged side by side along the third direction (Z-axis direction). In other words, the center line TL1 connecting the center MC1 of the second magnetic body 1142 and the center MC2 of the first magnetic body 1143 may be parallel to the third direction (Z-axis direction).

[0388] Also, the second protrusion PR2 may be bisected, and the bisecting line TL2 corresponding to the third direction (Z-axis direction) may be arranged side by side with the center line TL1 (or the bisecting line). In other words, there may be a plurality of bisecting lines TL2 that bisect the second protrusion PR2 in the first direction (X-axis direction).

[0389] In an embodiment, such a bisector TL2 may be disposed at a distance from the center line TL1 in the first direction (X-axis direction). The bisector TL2 may be located above the center line TL1. With such a configuration, the separation distance between the fifth coil 1152c or the fifth magnet 1151c increases, and the holder can be tilted more accurately in two axes. Further, the position of the holder can be maintained the same when no current is applied to the coil.

[0390] More specifically, since the center MC1 of the second magnetic body 1142 and the center MC2 of the first magnetic body 1143 are separated from the bisector TL2 in the first direction (X-axis direction), the force (e.g., repulsive force) between the second magnetic body 1142 and the first magnetic body 1143 can act separated from the bisector TL2 corresponding to the optical axis in the first direction (X-axis direction). Also, due to such a force, momentum is generated in the mover 1130. However, if the center MC1 of the second magnetic body 1142 and the center MC2 of the first magnetic body 1143 are located on the bisector TL2, there is a problem that the calibration progress and the position of the tilt guide portion and the second magnetic body 1142 are not maintained after tilting. That is, the camera actuator according to the embodiment is configured such that the center MC1 of the second magnetic body 1142 and the center MC2 of the first magnetic body 1143 are not arranged on the bisector TL2, so that the position of the tilt guide portion and the second magnetic body 1142 can be maintained after tilting or rotation.

[0391] In another embodiment, the center MC1 of the second magnetic body 1142 and the center MC2 of the first magnetic body 1143 may be arranged separated from each other in the first direction (X-axis direction).

[0392] Also, the center MC1 of the second magnetic body 1142 and the center MC2 of the first magnetic body 1143 do not have to be located on the bisector TL2. For example, the center MC1 of the second magnetic body 1142 and the center MC2 of the first magnetic body 1143 may be located above the bisector TL2.

[0393] As a result, the separation distance between the fifth coil 1152c or the fifth magnet 1151c increases, and the holder can be tilted more accurately in two axes. Further, the position of the holder can be maintained the same when no current is applied to the coil.

[0394] Also, the second magnetic body 1142 and the first magnetic body 1143 may have different lengths in the first direction (X-axis direction).

[0395] In an embodiment, the second magnetic body 1142 that is coupled to the second member 1131a and tilts together with the mover 1130 may have an area larger than the area of the first magnetic body 1143. As an example, the second magnetic body 1142 may have a length in the first direction (X-axis direction) larger than the length of the first magnetic body 1143 in the first direction (X-axis direction). Also, the second magnetic body 1142 may have a length in the second direction (Y-axis direction) larger than the length of the first magnetic body 1143 in the second direction (Y-axis direction). Also, the first magnetic body 1143 may be positioned within a virtual straight line extending in the third direction at both ends of the second magnetic body 1142.

[0396] With such a configuration, when tilting or rotating, even if one side magnetic body (for example, the second magnetic body) tilts, it is possible to easily prevent other forces than the vertical force from being generated by the tilt. That is, even if the second magnetic body tilts up and down together with the mover 1130, it does not receive a force (for example, a repulsive force or an attractive force) opposing the tilt from the first magnetic body 1143. Thereby, the drive efficiency can be improved.

[0397] FIG. 13a is a view seen from RR' of FIG. 12a, and FIG. 13b is an exemplary view of the movement of the first camera actuator shown in FIG. 13a.

[0398] Referring to FIGS. 13a and 13b, X-axis tilting can be performed. That is, by tilting or rotating the mover 1130 in the Y-axis direction, OIS can be realized.

[0399] In an embodiment, each of the third magnet 1151a and the fourth magnet 1151b disposed in the holder 1131 forms an electromagnetic force with the third coil 1152a and the fourth coil 1152b, and can tilt or rotate the tilt guide portion 1141 and the mover 1130 with respect to the first direction (X-axis direction).

[0400] Specifically, the repulsive force between the second magnetic body 1142 and the first magnetic body 1143 can be transmitted to the first member 1126 and the holder 1131, and finally transmitted to the tilt guide portion 1141 disposed between the holder 1131 and the first member 1126. Thereby, the tilt guide portion 1141 can be pressed by the mover 1130 and the first housing 1120 due to the above-described repulsive force.

[0401] Further, the first-1 protrusion PR1a and the first-2 protrusion PR1b may be supported by a first protrusion groove PH1 formed in the fourth seating groove 1131S4a of the holder 1131 at a distance in the first direction (X-axis direction). In the embodiment, the tilt guide portion 1141 can rotate or tilt with respect to the first protrusion PR1 protruding toward the holder 1131 (e.g., toward the third direction), that is, with respect to the first direction (X-axis direction) as a reference axis (or rotation axis).

[0402] For example, the OIS can be realized by rotating the mover 1130 by a second angle θ2 in the Y-axis direction (Y1→Y1a) by the second electromagnetic forces F2A and F2B between the third and fourth magnets 1151a and 1151b disposed in the first seating groove and the third and fourth coils 1152a and 1152b disposed on the first and second substrate side portions. Further, the OIS can be realized by rotating the mover 1130 by a second angle θ2 in the Y-axis direction (Y1→Y1b) by the second electromagnetic forces F2A and F2B between the third and fourth magnets 1151a and 1151b disposed in the first seating groove and the third and fourth coils 1152a and 1152b disposed on the first and second substrate side portions. The second angle θ2 may be ±1° to 3°, but is not limited thereto.

[0403] Also, as described above, the electromagnetic force generated by the third and fourth magnets 1151a and 1151b and the third and fourth coils 1152a and 1152b can act in the third direction or the opposite direction of the third direction. For example, the electromagnetic force can be generated in the third direction (Z-axis direction) from the left side of the mover 1130 and act in the opposite direction of the third direction (Z-axis direction) from the right side of the mover 1130. Therefore, the mover 1130 can rotate with respect to the first direction. Alternatively, it can move along the second direction.

[0404] Thus, the second actuator according to the embodiment controls the rotation of the mover 1130 in the first direction (X-axis direction) or the second direction (Y-axis direction) by the electromagnetic force between the drive magnet in the holder and the drive coil disposed in the first housing, thereby minimizing the occurrence of decent and tilt during the realization of OIS and providing the best optical characteristics. Also, as described above, "Y-axis tilt" means rotating or tilting in the first direction (X-axis direction), and "X-axis tilt" means rotating or tilting in the second direction (Y-axis direction).

[0405] FIG. 14 is a perspective view of a second camera actuator according to an embodiment, FIG. 15 is an exploded perspective view of the second camera actuator according to the embodiment, FIG. 16 is a cross-sectional view taken along DD' of FIG. 14, FIGS. 17a, 17b, and 17c are perspective views of a second housing in the second camera actuator according to the embodiment, FIGS. 18 and 19 are diagrams for explaining each drive of a lens assembly according to the embodiment, and FIG. 20 is a diagram for explaining the drive of the second camera actuator according to the embodiment.

[0406] Referring to FIGS. 14 to 16, the second camera actuator 1200 according to the embodiment may include a lens unit 1220, a second housing 1230, a second driving unit 1250, a base unit 1260, a second substrate unit 1270, a stopper portion ST of the joining member 1280, and a yoke portion YK. Further, the second camera actuator 1200 may further include a second shield can (not shown), an elastic portion (not shown), and a joining member (not shown).

[0407] The second shield can (not shown) may be located in an area (for example, the outermost side) of the second camera actuator 1200 and may be positioned to surround components (lens unit 1220, second housing 1230, second driving unit 1250, base unit 1260, second substrate unit 1270, and image sensor IS) described later.

[0408] Such a second shield can (not shown) can block or reduce electromagnetic waves generated externally. Thereby, the occurrence of malfunction in the second driving unit 1250 can be reduced.

[0409] The lens unit 1220 may be located within the second shield can (not shown). The lens unit 1220 can move along the third direction (Z-axis direction or optical axis direction). Thereby, the above-described AF function and zoom function can be achieved.

[0410] Also, the lens unit 1220 may be located within the second housing 1230. Therefore, at least a part of the lens unit 1220 can move along the optical axis direction or the third direction (Z-axis direction) within the second housing 1230.

[0411] Specifically, the lens unit 1220 may include a lens group 1221 and a moving assembly 1222.

[0412] First, the lens group 1221 may include at least one or more lenses. Also, there may be a plurality of lens groups 1221, but hereinafter, description will be made based on one.

[0413] The lens group 1221 can be moved in the third direction (Z-axis direction) by the electromagnetic force generated by the first magnet 1252a and the second magnet 1252b, which are combined with the moving assembly 1222 and coupled to the moving assembly 1222.

[0414] 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 sequentially arranged along the optical axis direction. Further, the lens group 1221 may further include a fourth lens group 1221d. The fourth lens group 1221d may be arranged at the rear end of the third lens group 1221c.

[0415] The first lens group 1221a may be combined with and fixed to the second-1 housing. In other words, the first lens group 1221a may not move along the optical axis direction.

[0416] The second lens group 1221b can be combined with the first lens assembly 1222a and move in the third direction or the optical axis direction. The magnification can be adjusted by the movement of the first lens assembly 1222a and the second lens group 1221b.

[0417] The third lens group 1221c can be combined with the second lens assembly 1222b and move in the third direction or the optical axis direction. Focus adjustment or autofocus can be performed by the movement of the third lens group 1221c.

[0418] However, it is not limited to such a number of lens groups. The fourth lens group 1221d may not be provided, or additional lens groups other than the fourth lens group 1121d may be further arranged.

[0419] The moving assembly 1222 may include an opening area surrounding the lens group 1221. Such a moving assembly 1222 is used in combination with the lens assembly. Also, the moving assembly 1222 can be coupled to the lens group 1221 in various ways. Further, the moving assembly 1222 may include a groove on the side surface and can be coupled to the first magnet 1252a and the second magnet 1252b through the groove. A coupling member or the like may be applied to the groove.

[0420] Also, the moving assembly 1222 may be coupled to elastic parts (not shown) at the upper end and the rear end. Accordingly, the moving assembly 1222 may move in the third direction (Z-axis direction) and be supported by the elastic parts (not shown). That is, the position of the moving assembly 1222 can be maintained and held in the third direction (Z-axis direction). The elastic parts (not shown) may be formed of various elastic elements such as leaf springs.

[0421] The moving assembly 1222 is located within the second housing 1230 and may include a first lens assembly 1222a and a second lens assembly 1222b.

[0422] The area where the third lens group is seated by the second lens assembly 1222b may be located at the rear end of the first lens assembly 1222a. In other words, the area where the third lens group 1221c is seated by the second lens assembly 1222b may be located between the area where the second lens group 1221b is seated by the first lens assembly 1222a and the image sensor.

[0423] The first lens assembly 1222a and the second lens assembly 1222b can each be seated inside the second-2 housing. For example, the recess where the ball is disposed by the first lens assembly 1222a may be located opposite the first side portion. Also, the recess where the ball is disposed by the second lens assembly 1222b may be located opposite the second side portion. A detailed description thereof will be given later.

[0424] In addition, a second drive magnet can be mounted on the outer surfaces of the first lens assembly 1222a and the second lens assembly 1222b. For example, a second magnet 1252b can be mounted on the outer surface of the second lens assembly 1222b. A first magnet 1252a can be mounted on the outer surface of the first lens assembly 1222a.

[0425] The second housing 1230 may be disposed between the lens unit 1220 and a second shield can (not shown). Further, the second housing 1230 may be disposed so as to surround the lens unit 1220.

[0426] The second housing 1230 may include a second-1 housing 1231 and a second-2 housing 1232. The second-1 housing 1231 can be coupled to the first lens group 1221a and can also be coupled to the first camera actuator. The second-1 housing 1231 may be located in front of the second-2 housing 1232.

[0427] Also, the second-2 housing 1232 may be located at the rear end of the second-1 housing 1231. The lens unit 1220 can be mounted inside the second-2 housing 1232.

[0428] The second housing 1230 (or the second-2 housing 1232) may have holes formed in its side portions. The first coil 1251a and the second coil 1251b may be disposed in the holes. The holes may be located corresponding to the grooves of the moving assembly 1222 described above.

[0429] In an embodiment, the second housing 1230 (particularly, the second - 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 corresponding to each other. For example, the first side portion 1232a and the second side portion 1232b may be symmetrically arranged with respect to the third direction. The second drive coil 1251 may be positioned on the first side portion 1232a and the second side portion 1232b. Also, the second substrate portion 1270 can be seated on the outer surfaces of the first side portion 1232a and the second side portion 1232b. In other words, the first substrate 1271 may be positioned on the outer surface of the first side portion 1232a, and the second substrate 1272 may be positioned on the outer surface of the second side portion 1232b.

[0430] As another example, the first and second guide grooves facing the recess (the seating groove where the first and second balls are seated) of the first lens assembly 1222a may be located on the first side portion. Also, the first and second guide grooves facing the recess of the second lens assembly 1222b may be located on the second side portion. At this time, another member (for example, a guide portion) including the first and second guide grooves may have a structure coupled to the second - 2 housing 1232. However, in this embodiment, the first and second guide grooves are described based on the integral structure formed in the second - 2 housing 1232. Further, similar to other examples, the first guide portion and the second guide portion may be positioned corresponding to each other. For example, the first guide portion and the second guide portion may be positioned opposite to each other with respect to the third direction (Z - axis direction). Also, at least a part of the first guide portion and the second guide portion may overlap each other in the second direction (Y - axis direction).

[0431] The first guide portion and the second guide portion may include at least one groove (for example, a guide groove) or a recess. Also, the first ball B1 or the second ball B2 can be seated in the groove or the recess. Therefore, the first ball B1 or the second ball B2 can move in the third direction (Z - axis direction) within the guide groove of the first guide portion or the guide groove of the second guide portion.

[0432] Alternatively, the first ball B1 or the second ball B2 can move in the third direction along a rail formed inside the first side portion 1232a of the second housing 1230 or a rail formed inside the second side portion 1232b of the second housing 1230.

[0433] As a result, the first lens assembly 1222a and the second lens assembly 1222b can move in the third direction.

[0434] According to an embodiment, the first ball B1 may be disposed on the upper portion of the first lens assembly 1222a or the second lens assembly 1222b. Also, the second ball B2 may be disposed on the lower portion of the first lens assembly 1222a or the second lens assembly 1222b. For example, the first ball B1 may be located above the second ball B2. Therefore, depending on the position, the first ball B1 may at least partially overlap the second ball B2 along the first direction (X-axis direction).

[0435] Also, the second-2 housing 1232 may include first guide grooves GG1a and GG2a facing the first recess RS1. Also, the second-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 the third direction (Z-axis direction). Also, the first guide grooves GG1a and GG2a and the second guide grooves GG1b and GG2b may be grooves having different shapes from each other. For example, the first guide grooves GG1a and GG2a may be grooves with inclined side surfaces, and the second guide grooves GG1b and GG2b may be grooves with side surfaces perpendicular to the bottom surface.

[0436] The first magnet and the first coil may be located on the first side portion. Also, the second magnet and the second coil may be located on the second side portion. Also, the second magnet 1252b may be located opposite the second coil 1251b. Also, the first magnet 1252a may be located opposite the first coil 1251a.

[0437] The elastic part (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. Also, the first elastic member (not shown) and the second elastic member (not shown) may be formed of a leaf spring as described above. Further, the first elastic member (not shown) and the second elastic member (not shown) can provide elasticity against the movement of the moving assembly 1222. However, it is not limited to the above-described positions, and the elastic part may be arranged at various positions.

[0438] Also, the second driving unit 1250 can provide a driving force for moving the lens unit 1220 in the third direction (Z-axis direction). Such a second driving unit 1250 may include a second driving coil 1251 and a second driving magnet 1252. Further, the second driving unit 1250 may further include a second hall sensor unit. The second hall sensor unit 1253 includes at least one fourth hall sensor 1253a and may be located inside or outside the second driving coil 1251.

[0439] Also, the second driving unit 1250 can correspond to a "Zoom / AF driving unit" and a "rear end driving unit". Further, such a Zoom / AF driving unit may include a first driving unit and a second driving unit. Here, the first driving unit is different from the driving unit corresponding to the OIS driving unit. In the following description of the second camera actuator, the first driving unit may include a first magnet 1252a and a first coil 1251a. Such a first driving unit can move the first lens assembly 1222a in the optical axis direction (Z-axis direction). Further, the first driving unit may further include a first yoke YK1 among the yoke parts. Alternatively, the first driving unit may be a component different from the first yoke YK1. In other words, the first yoke YK1 may be a component included in the first driving unit or may be a different component.

[0440] In addition, the second driving unit may include a second magnet 1252b and a second coil 1251b. Such a second driving unit can move the second lens assembly 1222b in the optical axis direction (Z-axis direction). Further, the second driving unit may further include a second yoke YK2 among the yoke parts. Alternatively, the second driving unit may be a component different from the second yoke YK2. In other words, the second yoke YK2 may be a component included in the second driving unit or may be a different component.

[0441] Due to the electromagnetic force formed between the second driving coil 1251 and the second driving magnet 1252, the moving assembly can move in the third direction (Z-axis direction).

[0442] 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 arranged in holes formed in the side part of the second housing 1230. Also, the first coil 1251a and the second coil 1251b can be electrically connected to the second substrate part 1270. Therefore, the first coil 1251a and the second coil 1251b can receive current etc. via the second substrate part 1270.

[0443] 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 arranged in the above-described grooves of the moving assembly 1222 and may be positioned corresponding to the first coil 1251a and the second coil 1251b.

[0444] The base part 1260 may be located between the lens part 1220 and the image sensor IS. Components such as a filter may be fixed to the base part 1260. Also, the base part 1260 may be arranged so as to surround the above-described image sensor. With such a configuration, foreign matter etc. does not adhere to the image sensor, so the reliability of the element can be improved. However, this will be omitted from the description in some of the following drawings. However, it is not limited to such a structure.

[0445] Also, the second camera actuator 1200 may be a zoom actuator and an AF (Auto Focus) actuator. For example, the second camera actuator supports one or more lenses and can move the lenses according to a control signal from a predetermined control unit to perform at least one of an auto focus function and a zoom function.

[0446] Also, the second camera actuator may be a fixed zoom or a continuous zoom. For example, the second camera actuator can provide movement of the lens group 1221.

[0447] Furthermore, the second camera actuator may be composed of a plurality of lens assemblies. For example, in addition to the first lens assembly 1222a and the second lens assembly 1222b, at least one or more of a third lens assembly (not shown) and guide pins (not shown) may be arranged in the second camera actuator. The above-described content can be applied to this. Therefore, the second camera actuator can perform a high-magnification zoom function through the second drive unit. For example, the first lens assembly 1222a and the second lens assembly 1222b may be moving lenses that move through the second drive unit and guide pins (not shown), and the third lens assembly (not shown) may be a fixed lens, but is not limited thereto. For example, the third lens assembly (not shown) can perform the function of a focator that forms an image of light at a specific position, and the first lens assembly can perform the function of a variator that re-images the image formed by the third lens assembly (not shown) that is a focator at another location. On the other hand, in the first lens assembly, there is a possibility that the distance to the subject or the image distance changes greatly and the magnification change is large. The first lens assembly, which is a variator, can play an important role in the focal length or magnification change of the optical system. On the other hand, the image point formed by the first lens assembly, which is a variator, may have a slight difference depending on the position. Therefore, the second lens assembly can perform a position compensation function for the image formed by the variator. For example, the second lens assembly can perform the function of a compensator that accurately forms the image point formed by the second lens assembly 1222b, which is a variator, at the actual image sensor position. However, the configuration of the present embodiment will be described based on the following drawings.

[0448] The image sensor may be located inside or outside the second camera actuator. In an embodiment, as shown in the figure, the image sensor may be located outside the second camera actuator. For example, the image sensor may be located on a circuit board. The image sensor can receive light and convert the received light into an electrical signal. Also, the image sensor may have a plurality of pixels arranged in an array. Also, the image sensor may be located on the optical axis.

[0449] The second substrate portion 1270 may be in contact with the side portion of the second housing. As an example, the second substrate portion 1270 may be located on the outer surfaces (the first side surface) of the first side portion and the outer surface (the second side surface) of the second side portion of the second housing, particularly the second-2 housing, and may be in contact with the first side surface and the second side surface.

[0450] The stopper portion ST includes a first stopper ST1 disposed at one end by the second-2 housing 1232 and a second stopper ST2 disposed at the other end. The first stopper ST1 and the second stopper ST2 may be sequentially arranged along the optical axis direction.

[0451] Furthermore, the first stopper ST1 is a plurality of ST1a and ST1b, and may be respectively arranged on the movement path of the first lens assembly and the movement path of the second lens assembly. For convenience, it will be described as the first-1 stopper ST1a and the first-2 stopper ST1b. Similarly, the second stopper ST2 is a plurality of ST2a and ST2b, and may be respectively arranged on the movement path of the first lens assembly and the movement path of the second lens assembly. Also, it will be described as the second-1 stopper ST2a and the second-2 stopper ST2b.

[0452] The first-1 stopper ST1a and the second-1 stopper ST2a may be located on the movement path of the first lens assembly. The first-2 stopper ST1b and the second-2 stopper St2b may be located on the movement path of the second lens assembly.

[0453] The first stopper ST1a and the first stopper ST1b may overlap in the second direction. Alternatively, the first stopper ST1a and the first stopper ST1b may be displaced in the second direction.

[0454] Also, the second stopper ST2a and the second stopper ST2b may be displaced and positioned in the second direction. The distance in the third direction between the first stopper ST1a and the second stopper ST2a may be smaller than the distance between the first stopper ST1b and the second stopper ST2b. This is a configuration that reflects the fact that the movable distance (stroke) of the first lens assembly is shorter than the movable distance (stroke) of the second lens assembly.

[0455] In an embodiment, the second yoke portion or the yoke portion YK may be disposed outside the second driving portion. For example, the yoke portion YK may be disposed outside the first and second coils. The yoke portion YK may include a first yoke YK1 and a second yoke YK2. The first yoke YK1 may overlap in a direction perpendicular to the optical axis direction (for example, the second direction) with the first driving portion (the first magnet and the first coil). Also, the second yoke YK2 may overlap in a direction perpendicular to the optical axis direction (for example, the second direction) with the second driving portion (the second magnet and the second coil).

[0456] The first yoke YK1 and the second yoke YK2 may be disposed to face each other. For example, the first yoke YK1 and the second yoke YK2 may be positioned corresponding to each other with respect to the optical axis.

[0457] 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 inside the first yoke YK1 and the second yoke YK2. Also, the first yoke YK1, the first coil 1251a, the second coil 1251b, and the second yoke YK2 may be sequentially arranged in one direction (for example, the second direction).

[0458] The first yoke YK1 can form an attractive force with the first magnet. Also, the second yoke YK2 can form an attractive force with the second magnet. Therefore, the postures of the first and second lens assemblies can be maintained. In other words, the first yoke YK1 and the second yoke YK2 can provide a holding force for the positions of the first and second lens assemblies.

[0459] Furthermore, each of the first yoke YK1 and the second yoke YK2 may include regions having different thicknesses. For example, the first yoke YK1 may include a first region and a second region having a different thickness from the first region. Similarly, the second yoke YK2 may also include a first region and a second region having a different thickness from the first region corresponding to the first yoke. An explanation for this will be described later.

[0460] Referring to FIGS. 17a, 17b, and 17c, as described above, the second housing 1230 (particularly, the second - 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 corresponding to each other. For example, the first side portion 1232a and the second side portion 1232b may be symmetrically arranged with respect to the third direction. A second drive coil may be located on the first side portion 1232a and the second side portion 1232b. Also, a second substrate portion can be seated on the outer surfaces of the first side portion 1232a and the second side portion 1232b. The second substrate portion is located outside the drive coil and can be electrically connected to the drive coil.

[0461] For example, a first substrate may be located on the outer surface of the first side portion 1232a, and a second substrate may be located on the outer surface of the second side portion 1232b.

[0462] Furthermore, on the inner surface of the first side portion 1232a, first guide grooves GG1a and GG1b on which the first ball and the second ball are seated may be located. The first guide grooves GG1a and GG1b may face the first recess and the second recess. Similarly, on the inner surface of the second side portion 1232b, second guide grooves GG2a and GG2b on which the first ball and the second ball are seated may be located. The first guide grooves GG1a and GG1b may face the first recess and the second recess.

[0463] Furthermore, the first side portion 1232a may include a first side portion hole 1232ah. A first magnet may be located in the first side portion hole 1232ah. Furthermore, the first side portion hole 1232ah may be smaller in length in the first direction than the first coil.

[0464] Also, the second side portion 1232b may include a second side portion hole 1232bh. A second magnet may be located in the second side portion hole 1232bh. Furthermore, the second side portion hole 1232bh may be smaller in length in the first direction than the second coil.

[0465] Furthermore, the second - 2 housing 1232 may include a housing hole 1232h disposed in either the upper part or the lower part. The housing hole 1232h enables easy connection and inspection (for example, visual inspection) of the first lens assembly and the second lens assembly.

[0466] Also, the first guide grooves GG1a and GG1b located in the first side portion 1232a may extend in the third direction. Furthermore, the first guide grooves GG1a and GG1b may have different shapes from each other. For example, any one of the first guide grooves GG1a may be an inclined groove, and the other GG1b may be a flat structure. This can be similarly applied to the second guide grooves GG2a and GG2b. The first and second balls are seated on the inclined groove and the flat structure, and the first lens assembly or the second lens assembly can move along the optical axis direction.

[0467] Referring to FIGS. 18 and 19, in the camera module according to the embodiment, an electromagnetic force DEM1 is generated between the first magnet 1252a and the first coil 1251a, and the first lens assembly 1222a can move along a rail located on the inner surface of the housing in parallel with the optical axis, that is, in the third direction (Z-axis direction) or the opposite direction of the third direction via the first ball B1 and the second ball B2.

[0468] Specifically, in the camera module according to the embodiment, the first magnet 1252a may be provided on the first lens assembly 1222a by, for example, a vertical magnetization method. For example, in the embodiment, both the N pole and the S pole of the first magnet 1252a may be located opposite to the first coil 1251a. Accordingly, the N pole and the S pole of the first magnet 1252a may be respectively arranged so as to correspond to a region where a current flows in the X-axis direction or the opposite direction in the first coil 1251a.

[0469] In the embodiment, when a magnetic force is applied in the opposite direction of the second direction (Y-axis direction) at the N pole of the first magnet 1252a and a current DE1 flows in the opposite direction of the first direction (X-axis direction) from the first coil 1251a corresponding to the N pole, the electromagnetic force DEM1 can act in the third direction (Z-axis direction) according to the interaction of electromagnetic forces (for example, Fleming's left-hand rule).

[0470] Also, in the embodiment, when a magnetic force is applied in the second direction (Y-axis direction) at the S pole of the first magnet 1252a and a current DE1 flows in the first direction (X-axis direction) from the first coil 1251a corresponding to the S pole, the electromagnetic force DEM1 can act in the Z-axis direction by the interaction of electromagnetic forces.

[0471] At this time, since the first coil 1251a is fixed to the side portion of the second housing, the first lens assembly 1222a in which the first magnet 1252a is disposed can move in the opposite direction of the Z-axis direction by the electromagnetic force DEM1 according to the current direction. That is, the second drive magnet can move in the opposite direction of the electromagnetic force applied to the second drive coil. Further, the direction of the electromagnetic force can be changed by the current of the coil and the magnetic force of the magnet.

[0472] Therefore, the first lens assembly 1222a can move along the rail located on the inner surface of the housing via the first ball B1 and the second ball B2 in the third direction or a direction parallel to the optical axis direction (bidirectional). At this time, the electromagnetic force DEM1 can be controlled in proportion to the current DE1 applied to the first coil 1251a.

[0473] The first lens assembly 1222a or the second lens assembly 1222b may include a first recess RS1 in which the first ball B1 is seated. Further, the first lens assembly 1222a or the second lens assembly 1222b may include a second recess RS2 in which the second ball B2 is seated. The length of the first recess RS1 in the optical axis direction (Z-axis direction) may be preset. Also, the length of the second recess RS2 in the optical axis direction (Z-axis direction) may be preset. Thereby, the first ball B1 and the second ball B2 can adjust the moving distance in the optical axis direction within each recess. In other words, the first recess RS1 or the second recess RS2 may be a stopper for the first and second balls B1, B2.

[0474] Also, in the camera module according to the embodiment, the second magnet 1252b may be provided in 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 may be positioned to face the second coil 1251b. Thereby, the N pole and the S pole of the second magnet 1252b may be respectively arranged so as to correspond to the region where the current flows in the X-axis direction or the opposite direction in the second coil 1251b.

[0475] In an embodiment, when a magnetic force DM2 is applied in the second direction (Y-axis direction) at the N pole of the second magnet 1252b and a current DE2 flows in the first direction (X-axis direction) through the second coil 1251b corresponding to the N pole, an electromagnetic force DEM2 can act in the third direction (Z-axis direction) according to the interaction of electromagnetic forces (e.g., Fleming's left-hand rule).

[0476] Also, in an embodiment, when a magnetic force is applied in the opposite direction of the second direction (Y-axis direction) at the S pole of the second magnet 1252b and a current DE2 flows in the opposite direction of the first direction (X-axis direction) through the second coil 1251b corresponding to the S pole, an electromagnetic force DEM2 can act in the Z-axis direction due to the interaction of electromagnetic forces.

[0477] At this time, since the second coil 1251b is fixed to the side portion of the second housing, the second lens assembly 1222b in which the second magnet 1252b is disposed can move in the opposite direction of the Z-axis direction by the electromagnetic force DEM2 according to the current direction. For example, as described above, the direction of the electromagnetic force can be changed by the current of the coil and the magnetic force of the magnet. Therefore, the second lens assembly 1222b can move along a rail located on the inner surface of the second housing via the second ball B2 in a direction parallel to the third direction (Z-axis direction). At this time, the electromagnetic force DEM2 can be controlled in proportion to the current DE2 applied to the second coil 1251b.

[0478] Referring to FIG. 20, in the camera module according to the embodiment, the second driving unit can provide driving forces F3A, F3B, F4A, and F4B for moving the first lens assembly 1222a and the second lens assembly 1222b of the lens unit 1220 along the third direction (Z-axis direction). Such a second driving unit may include the second driving coil 1251 and the second driving magnet 1252 as described above. Also, due to the electromagnetic force formed between the second driving coil 1251 and the second driving magnet 1252, the lens unit 1220 can move along the third direction (Z-axis direction).

[0479] At this time, the first coil 1251a and the second coil 1251b may be disposed in holes formed in side portions (for example, the first side portion and the second side portion) of the second housing 1230. Also, the second coil 1251b can be electrically connected to the first substrate 1271. The first coil 1251a can be electrically connected to the second substrate 1272. Accordingly, the first coil 1251a and the second coil 1251b can receive a drive signal (for example, current) from a drive driver on the circuit board of the circuit board 1300 via the second substrate portion 1270.

[0480] 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) by the electromagnetic forces F3A and F3B between the first coil 1251a and the first magnet 1252a. Also, the second lens group 1221b seated on the first lens assembly 1222a can also move along the third direction.

[0481] Also, the second lens assembly 1222b on which the second magnet 1252b is seated can move along the third direction (Z-axis direction) by the electromagnetic forces F4A and F4B between the second coil 1251b and the second magnet 1252b. Also, the third lens group 1221c seated on the second lens assembly 1222b can also move along the third direction.

[0482] Thereby, similar to the above-described content, the focal length and magnification of the optical system can be changed by the movement of the second lens group 1221b and the third lens group 1221c. In an embodiment, the magnification can be changed by the movement of the second lens group 1221b. In other words, zooming can be performed. Also, the focus can be adjusted by the movement of the third lens group 1221c. In other words, auto focusing can be performed. With such a configuration, the second camera actuator may be a fixed zoom or a continuous zoom.

[0483] FIG. 21 is a schematic diagram showing a circuit board according to an embodiment.

[0484] Referring to FIG. 21, as described above, the circuit board 1300 according to the embodiment may include a first circuit board portion 1310 and a second circuit board portion 1320. The first circuit board portion 1310 is located at the lower part of the base and can be coupled to the base. Also, an image sensor IS may be disposed on the first circuit board portion 1310. Further, the first circuit board portion 1310 and the image sensor IS can be electrically connected. That is, the base may be located at the rear end of the second camera actuator, and the image sensor and the circuit board (the first circuit board portion) may be located at the rear end of the base. The base may include a filter (e.g., infrared, etc.). Also, the second circuit board portion 1320 may be located at the side portion of the base. In particular, the second circuit board portion 1320 may be located at the first side portion of the base. Accordingly, the second circuit board portion 1320 is located adjacent to the first coil located adjacent to the first side portion and can easily make an electrical connection. Also, the second circuit board portion 1320 may be located at the second side portion. Thus, there may be a plurality of second circuit board portions 1320. However, it is not limited thereto, and it may be disposed on only one of the first side portion and the second side portion.

[0485] Furthermore, the circuit board 1300 may further include a fixed board (not shown) located on the side surface. Accordingly, even if the circuit board 1300 is made of a flexible material, it can be coupled to the base while maintaining rigidity by the fixed board.

[0486] The second circuit board portion 1320 of the circuit board 1300 may be located at the side portion of the second driving portion 1250. The circuit board 1300 can be electrically connected to the first driving portion and the second driving portion. For example, the electrical connection may be performed by SMT. However, it is not limited to such a method.

[0487] Such a 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 Printed Circuit Board (Flexible PCB), a Rigid Flexible Printed Circuit Board (Rigid Flexible PCB), etc. However, it is not limited to these types.

[0488] In addition, the circuit board 1300 can be electrically connected to other camera modules or the processor of the terminal within the terminal. Thereby, the above-described camera actuator and the camera module including the same can transmit and receive various signals within the terminal.

[0489] FIG. 22 is a perspective view of a first lens assembly, a first joining member, a second joining member, and a second lens assembly according to an embodiment.

[0490] Referring to FIG. 22, the first lens assembly 1222a and the second lens assembly 1222b may be arranged to be separated in the optical axis direction (Z-axis direction). Also, 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 achieved by the movement of the first lens assembly 1222a and the second lens assembly 1222b.

[0491] In addition, the first lens assembly 1222a may include a first lens holder LAH1 that holds and couples the second lens group 1221b. The first lens holder LAH1 may be coupled to the second lens group 1221b. Also, 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 arranged in the first lens hole LH1. The first lens holder LAH1 may be mixed with a housing portion (for example, a first housing portion and a second housing portion).

[0492] Further, the second lens assembly 1222b may include a second lens holder LAH2 that holds and couples the third lens group 1221c. The second lens holder LAH2 may also include a second lens aperture LH2 for accommodating the third lens group 1221c. That is, at least one lens may be disposed in the second lens aperture LH2.

[0493] 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 bottom surface of the first lens holder LAH1 with respect to the optical axis direction (Z-axis direction). Further, a third outer surface MM3 described later may be the top surface of the first lens holder LAH1. Also, the second outer surface MM2 may be the top surface of the second lens holder LAH2, and the fourth outer surface MM4 may be the bottom surface of the second lens holder LAH2.

[0494] Also, 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 outer surface MM1 to the fourth outer surface MM4 may at least partially overlap with each other in the optical axis direction (Z-axis direction).

[0495] For example, a joining member (not shown) may be in contact with at least one of the first outer surface MM1 and the second outer surface MM2.

[0496] FIG. 23 is a view of the second camera actuator according to the embodiment with the second housing removed, FIG. 24 is a side view of various examples of the second yoke portion in the second camera actuator according to the embodiment, FIG. 25 is a top view of various examples of the second yoke portion in the second camera actuator according to the embodiment, FIG. 26 is a view showing an example of the second yoke portion in the second camera actuator according to the embodiment, and FIG. 27 is a view showing another example of the second yoke portion in the second camera actuator according to the embodiment.

[0497] Referring to FIG. 23, in the second camera actuator according to the embodiment, the yoke portion may be disposed adjacent to each of the first lens assembly and the second lens assembly that are sequentially arranged and move in the optical axis direction (Z-axis direction).

[0498] In the embodiment, the yoke portion YK may be disposed outside the second driving portion. For example, the yoke portion YK may be disposed outside the first and second coils. The yoke portion YK may include a first yoke YK1 and a second yoke YK2.

[0499] 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 corresponding to each other with respect to the optical axis.

[0500] 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 inside the first yoke YK1 and the second yoke YK2. Also, the first yoke YK1, the first coil 1251a, the second coil 1251b, and the second yoke YK2 may be sequentially arranged in one direction (for example, the second direction).

[0501] The yoke portion YK can generate a coupling force with the first magnet 1252a and the second magnet 1252b. Therefore, the second housing can be easily coupled to the first lens assembly 1222a and the second lens assembly 1222b. Further, when the first lens assembly 1222a and the second lens assembly 1222b move along the optical axis, the posture in the first direction and the like can be maintained.

[0502] In an embodiment, the yoke portion YK may have a plurality of regions with different thicknesses. The yoke portion YK may include a first region SA1 and a second region SA2. The second region SA2 may be thicker 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 portion YK may be the length in a direction perpendicular to the optical axis. For example, the thickness may be the length in the second direction. Thereby, the gravitational force between the magnets can be increased in the second region SA2. For example, the second region SA2 of the second yoke YK2 can prevent the magnetism generated by the second magnet from being provided to the other side. Further, the second region SA2 of the second yoke YK2 can also improve the gravitational force with the second magnet and cancel the influence (for example, malfunction (movement to the rear end)) received by the second assembly from the first magnet.

[0503] Alternatively, the yoke portion YK may include a first region SA1 and a second region SA2 having a different magnetic strength from that of the first region. In particular, the first yoke YK1 may include a first region SA1 and a second region SA2 having different magnetic strengths from each other.

[0504] Also, the first yoke YK1 may include a first region SA1 and a second region SA2. Similarly, the second yoke YK2 may include a first region SA1 and a second region SA2.

[0505] The yoke portion YK may include a first divided region DA1, a third divided region DA3, and a second divided region DA2 sequentially arranged in the optical axis direction.

[0506] The first divided region DA1 may be located at one end or the front end of the yoke portion YK. Here, one end or the front end means a portion adjacent to the first camera actuator in the yoke portion YK. Also, one end or the front end may mean an end portion in the direction opposite to the optical axis direction.

[0507] Further, the second divided region DA2 may be located at the other end or the rear end of the yoke portion YK. Here, the other end or the rear end may mean the end portion in the optical axis direction. Also, the other end or the rear end may mean the portion adjacent to the image sensor in the yoke portion YK.

[0508] The third divided region DA3 may be located between the first divided region DA1 and the second divided region DA2.

[0509] The second region SA2 may be arranged in any one of the first to third divided regions DA1 to DA3 of the yoke portion YK. Also, such content can be similarly applied to the second regions SA2 of the first yoke YK1 and the second yoke YK2.

[0510] In an embodiment, the second region SA2 of the yoke portion YK may be located in the first divided region DA1. Therefore, the thick second region SA2 can be arranged adjacent to the first camera actuator rather than the first region SA1. Thus, through the second region SA2, the yoke portion YK can more easily block magnetic force and the like generated from the first camera actuator. Thereby, in the second camera actuator, the first and second lens assemblies can be moved or driven more accurately.

[0511] Also, the second regions SA2 in the first yoke YK1 and the second yoke YK2 facing each other may be positioned so as to overlap in the second direction or may be offset. The explanation for this will be described later.

[0512] Also, as described above, the yoke portion YK may be arranged on the second substrate arranged outside the second housing. For example, the yoke portion YK may be arranged outside the second substrate. Also, the yoke portion YK may have a structure for coupling with the second substrate and the second housing. For example, the yoke portion YK can have holes to be coupled to the second substrate and the second housing. That is, the above-described coupling can be realized by hole-protrusion coupling or by applying a joining member to the holes.

[0513] Further, the yoke portion may be partitioned into two regions in the optical axis direction. At this time, the second region SA2 may be disposed in one of the two regions. Also, the first region SA1 may be disposed in the other of the two regions. Furthermore, a part of the first region SA1 may be disposed in a part of either one of the two regions.

[0514] Furthermore, the yoke portion may include a boundary region BA between the first region SA1 and the second region SA2. For example, each of the first yoke YK1 and the second yoke YK2 may include the boundary region BA.

[0515] Referring to FIG. 24, in the second camera actuator, the second region SA2 of the yoke portion YK may be located in at least one of the first divided region DA1, the second divided region DA2, and the third divided region DA3. Also, the second region SA2 may be disposed in a part of one of the first divided region DA1, the second divided region DA2, and the third divided region DA3 and a part of another one of the first divided region DA1, the second divided region DA2, and the third divided region DA3. Such a position of the second region SA2 may change according to the tele, wide, and mid positions of the second camera actuator.

[0516] In the present embodiment, the second region SA2 may be located in the first divided region DA1 in the second camera actuator (see FIG. 24(a)). That is, the second region SA2 may be located at one end of the yoke portion YK. Also, the second region SA2 and the first region SA1 may be sequentially arranged along the optical axis direction in the yoke portion YK. In such a case, as described above, it is possible to prevent a phenomenon in which magnetic force or the like generated from the first camera actuator is applied to the second camera actuator.

[0517] Also, as shown in FIG. 24(b), the second region SA2 may be located between the separated first regions SA1. Further, as shown in FIG. 24(c), the second region SA2 may be located at the other end of the yoke portion YK. That is, the second region SA2 may be located adjacent to the image sensor. Also, the first region SA1 and the second region SA2 may be sequentially arranged along the optical axis direction in the yoke portion YK.

[0518] Referring to FIG. 25, as described above, in the second camera actuator, the yoke portion YK may include a first yoke YK1 and a second yoke YK2 facing each other.

[0519] Also, the second region SA2 of the first yoke YK1 may overlap with the second region SA2 of the second yoke YK2, or may be at least partially displaced. At this time, the overlapping direction may be the second direction (Y-axis direction) perpendicular to the optical axis.

[0520] As shown in FIG. 25(a), the second region SA2 of the first yoke YK1 may be arranged at the same position as the second region SA2 of the second yoke YK2 in the optical axis direction. Therefore, the second region SA2 of the first yoke YK1 may overlap with the second region SA2 of the second yoke YK2 (in the second direction).

[0521] Similarly, the first region SA1 of the first yoke YK1 may be located at the same position as the first region SA1 of the second yoke YK2 in the optical axis direction. Therefore, the first region SA1 of the first yoke YK1 may overlap with the first region SA1 of the second yoke YK2.

[0522] Furthermore, the thickness dd2 of the second region SA2 in the yoke portions YK1 and YK2 (hereinafter referred to as the second thickness) may be greater than the thickness dd1 of the first region SA1 (hereinafter referred to as the first thickness). For example, the thickness dd2 of the second region SA2 may be 0.07 mm to 0.13 mm. Also, the first thickness dd1 may have a thickness ratio to the second thickness dd2 of 1:1.2 to 1:2.6. Preferably, the thickness ratio may be 1:1.4 to 1:2.4. More preferably, the thickness ratio may be 1:1.5 to 1:2.2. If the thickness ratio is greater than 1:2.6, there is a problem that the weight increases and the frictional force with respect to the driving of the lens assembly increases significantly. Also, if the thickness ratio is less than 1:1.2, the shielding effect of the magnetic field interference generated from the first and second magnets etc. may not be significant.

[0523] Also, the length of the second region SA2 may be different from the length of the first region SA1. For example, the length of the second region SA2 may be smaller than the length of the first region SA1. With such a configuration, the magnetic field interference effect by the first and second magnets can be blocked, and the magnetic force from the first camera actuator can be easily blocked. Also, in the second camera actuator, an increase in the frictional force of the balls with respect to the first lens assembly and the second lens assembly can be minimized. Here, the length means the length in the second direction. The length of the second region SA2 may have a length ratio to the length of the first region SA1 of 1:1 to 1:3. Furthermore, the length of the second region SA2 may be 20% to 50% of the length of the first yoke YK1.

[0524] Furthermore, the thickness dd2b at one end and the thickness dd2a at the other end in the second region SA2 may be the same or different. That is, the thickness dd2b at one end of the second region SA2 and the second thickness dd2a at the other end of the second region SA2 may be the same. Also, the thickness dd2b at one end of the second region SA2 and the second thickness dd2a at the other end of the second region SA2 may be different. In an embodiment, the thickness of the second region SA2 in the first yoke YK1 may be 1.2 times to 2.5 times the thickness of the first region SA1. Preferably, the thickness of the second region SA2 in the first yoke YK1 may be 1.3 times to 2.0 times the thickness of the first region SA1. More preferably, the thickness of the second region SA2 in the first yoke YK1 may be 1.4 times to 1.7 times the thickness of the first region SA1. The descriptions of such thickness and length can be applied to the yoke portions of various examples.

[0525] Referring to FIG. 25(b), in the second camera actuator according to the embodiment, the second region SA2 of the second yoke YK2 may be partially displaced from the second region SA2 of the first yoke YK1. Accordingly, the second region SA2 of the first yoke YK1 may overlap with the first region SA1 of the second yoke YK2. Also, the second region SA2 of the second yoke YK2 may overlap with the first region SA1 of the first yoke YK1.

[0526] Also, the first region SA1 of the first yoke YK1 and the first region SA1 of the second yoke YK2 may at least partially overlap with each other.

[0527] Furthermore, the thickness dd2b at one end of the second region SA2 and the second thickness dd2a at the other end may be different. Similarly, the descriptions of such thickness and length can be applied to the yoke portions of various examples.

[0528] For example, in the second region SA2 of the first yoke or the second yoke, the thickness at one end and the thickness at the other end may be different, and the thickness may be linearly or stepwise deformed from one end to the other end. Furthermore, the change in thickness in the second region SA2 can be applied in various ways.

[0529] Furthermore, the first region SA1 of the first yoke YK1 may be arranged obliquely or shifted with respect to the first region SA1 of the second yoke YK2 with reference to the optical axis.

[0530] Referring to FIG. 25(c), in the second camera actuator according to the embodiment, the second region SA2 of the second yoke YK2 may partially overlap with the second region SA2 of the first yoke YK1, and the other part may be shifted from each other. That is, in the second camera actuator according to the embodiment, the second region SA2 of the second yoke YK2 may be shifted at least partially from the second region SA2 of the first yoke YK1. Therefore, the second region SA2 of the first yoke YK1 may overlap with the first region SA1 of the second yoke YK2. Also, the second region SA2 of the second yoke YK2 may partially overlap with the first region SA1 of the first yoke YK1.

[0531] Referring to FIG. 25(d), in the second camera actuator according to the embodiment, the second region SA2 of the yoke portion YK may be formed in either the first yoke YK1 or the second yoke YK2. For example, the first yoke YK1 may have the first region SA1 and the second region SA2. In contrast, the second yoke YK2 may have no change in thickness. Here, having no change in thickness means a range including a change rate of 10% with reference to the average thickness. Also, the first yoke YK1 may have no change in thickness, and the second yoke YK2 may have the first region SA1 and the second region SA2.

[0532] Referring to FIG. 26, in the second camera actuator according to the embodiment, the second region SA2 of the yoke portion may be located on the side surface of the second substrate portion 1270. The second region SA2 of the yoke portion may face the second substrate portion 1270. Also, the second region SA2 of the yoke portion may be in contact with the second substrate portion 1270.

[0533] The yoke portion may protrude outwardly or inwardly in the second region SA2. In FIG. 26, the second region SA2 of the yoke portion may have a structure that protrudes outwardly with respect to the second substrate portion 1270. That is, the second region SA2 may have a structure that protrudes outwardly from the first region SA1. With such a structure, the separation distance in the second direction between the yoke portion and the first magnet (or the second magnet) can be maintained the same.

[0534] For example, the separation distance GP2 in the second direction between the second region SA2 and the first magnet (or the second magnet) may be the same as the separation distance GP1 in the second direction between the first region SA1 and the first magnet (or the second magnet).

[0535] Therefore, even if the attractive force between the first and second magnets and the yoke portion increases in the adjacent region of the second region SA2, it is possible to suppress the generation of a very large frictional force in a specific region with respect to the first and second lens assemblies.

[0536] Referring to FIG. 27, as described above, in the second camera actuator according to the embodiment, the second region SA2 of the yoke portion may be located on the side surface of the second substrate portion 1270. The second region SA2 of the yoke portion may face the second substrate portion 1270. Also, the second region SA2 of the yoke portion may be in contact with the second substrate portion 1270.

[0537] The yoke portion may protrude outwardly or inwardly in the second region SA2. In FIG. 27, the second region SA2 of the yoke portion may have a structure that protrudes inwardly with respect to the second substrate portion 1270. That is, the second region SA2 may have a structure that protrudes more inwardly than the first region SA1. With such a structure, the separation distance in the second direction between the yoke portion and the first magnet (or the second magnet) may be different. For example, the separation distance GP2 in the second direction between the second region SA2 and the first magnet (or the second magnet) may be larger than the separation distance GP1 in the second direction between the first region SA1 and the first magnet (or the second magnet). Therefore, the length of the second camera actuator in the second direction can be shortened.

[0538] FIG. 28 is a cross-sectional view of the wide state of the second camera actuator according to the embodiment, FIG. 29 is a cross-sectional view of the tele state of the second camera actuator according to the embodiment, FIG. 30 is a graph for explaining the driving of the third group when the structure of the second yoke portion is not applied in the second camera actuator according to the embodiment, and FIG. 31 is a graph for explaining the driving of the third group when the structure of the second yoke portion is applied in the second camera actuator according to the embodiment.

[0539] Referring to FIG. 28, in the second camera actuator, the first yoke YK1 may be disposed adjacent to the first coil 1251a. Also, the second yoke YK2 may be disposed adjacent to the second coil 1251b. Also, the first yoke YK1 may be disposed adjacent to the first magnet 1252a. Also, the second yoke YK2 may be disposed adjacent to the second magnet 1252b.

[0540] Also, the drive coil according to the embodiment may include a hollow. In the embodiment, the first coil 1251a may include a first coil hollow 1251ah. Also, the second coil 1251b may include a second coil hollow 1251bh.

[0541] At this time, the second region SA2 of the yoke portion may not overlap with the hollow (the first and second coil hollows). In other words, the second region SA2 of the yoke portion may be displaced in the second direction from the hollow (the first and second coil hollows). Further, the second region SA2 of the yoke portion may be located adjacent to the first camera actuator rather than the hollow (the first and second coil hollows). In other words, the second region SA2 of the yoke portion may be arranged farther from the image sensor than the hollow (the first and second coil hollows).

[0542] Furthermore, the first and second magnets 1252a may include a first pole region (N pole or S pole), a second pole region (S pole or N pole), and neutral regions NA1, NA2. The neutral regions NA1, NA2 may be arranged between the first pole region and the second pole region. Also, in the first magnet 1252a, the first pole region, the neutral region, and the second pole region may be sequentially arranged in the optical axis direction. Similarly, in the second magnet 1252b, the first pole region, the neutral region, and the second pole region may be sequentially arranged in the optical axis direction. Also, in the first magnet 1252a and the second magnet 1252b, the first pole region may be an N pole. Also, in the first magnet 1252a and the second magnet 1252b, the second pole region may be an S pole. Also, the reverse is also true.

[0543] In an embodiment, FIG. 28 shows the positions of the first lens assembly 1222a and the second lens assembly 1222b in the second camera actuator in the wide state. For example, the wide state means a state in which the second camera actuator provides the minimum magnification with respect to an object. For this purpose, the first lens assembly 1222a may move maximally in the optical axis direction. Alternatively, the first magnet 1252a may move maximally in the optical axis direction (Z-axis direction). Alternatively, the first magnet 1252a may have a maximum movement distance in the optical axis direction (Z-axis direction). The second lens assembly 1222b may be arranged at various positions for autofocus, unlike the illustrated position.

[0544] In such a wide or wide 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 separation distance between the first lens assembly 1222a and the first stopper ST1a may be greater than the separation distance between the first lens assembly 1222a and the second stopper ST2a. Also, the separation distance between the second lens assembly 1222b and the first stopper ST1b may be greater than the separation distance between the second lens assembly 1222b and the second stopper ST2b.

[0545] In the wide state, that is, when the first magnet 1252a moves maximally in the optical axis direction, the first pole region of the first magnet 1252a may be arranged to overlap with the first region SA1 in the second direction or a direction perpendicular to the optical axis direction.

[0546] Also, in the wide state, the second region SA2 of the first yoke YK1 may overlap with the first pole region of the first magnet 1252a in the second direction. Also, the second region SA2 of the second yoke YK2 may overlap with the first pole region of the second magnet 1252b in the second direction.

[0547] As a modification, the second region SA2 of the first yoke YK1 may overlap with the first pole region and the neutral region NA1 of the first magnet 1252a in the second direction. Also, the second region SA2 of the second yoke YK2 may overlap with the first pole region of the second magnet 1252b in the second direction.

[0548] Referring to FIG. 29, as described above, in the second camera actuator, the first yoke YK1 may be arranged adjacent to the first coil 1251a. Also, the second yoke YK2 may be arranged adjacent to the second coil 1251b. Also, the first yoke YK1 may be arranged adjacent to the first magnet 1252a. Also, the second yoke YK2 may be arranged adjacent to the second magnet 1252b.

[0549] Also, the drive coil according to the embodiment may include a hollow. In the embodiment, the first coil 1251a may include a first coil hollow 1251ah. Also, the second coil 1251b may include a second coil hollow 1251bh.

[0550] At this time, the second region SA2 of the yoke portion may not overlap with the hollow (the first and second coil hollows). In other words, the second region SA2 of the yoke portion may be displaced in the second direction from the hollow (the first and second coil hollows). Further, the second region SA2 of the yoke portion may be located adjacent to the first camera actuator rather than the hollow (the first and second coil hollows). In other words, the second region SA2 of the yoke portion may be arranged farther from the image sensor than the hollow (the first and second coil hollows).

[0551] In the embodiment, FIG. 29 shows the positions of the first lens assembly 1222a and the second lens assembly 1222b in the second camera actuator in the tele state. For example, the tele state means a state in which the second camera actuator provides the maximum magnification for an object. For this purpose, the first lens assembly 1222a may move maximally in the direction opposite to the optical axis direction. Alternatively, the first magnet 1252a may move maximally in the direction opposite to the optical axis direction (Z-axis direction). Alternatively, the first magnet 1252a may have a maximum movement distance in the direction opposite to the optical axis direction (Z-axis direction). However, unlike the position shown in the figure, the second lens assembly 1222b may be arranged at various positions for autofocus.

[0552] In such a tele or tele 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 separation distance between the first lens assembly 1222a and the first stopper ST1a may be smaller than the separation distance between the first lens assembly 1222a and the second stopper ST2a. Also, the separation distance between the second lens assembly 1222b and the first stopper ST1b may be smaller than the separation distance between the second lens assembly 1222b and the second stopper ST2b.

[0553] Also, in tele, the second region SA2 of the first yoke YK1 may overlap with the first pole region and the neutral region NA1 of the first magnet 1252a in the second direction. Also, the second region SA2 of the second yoke YK2 may overlap with the first pole region and the neutral region NA2 of the second magnet 1252b in the second direction.

[0554] Also, in tele, the second region SA2 of the first yoke YK1 may not overlap with the second pole region of the first magnet 1252a in a direction perpendicular to the optical axis direction or in the second direction (Y-axis direction).

[0555] Also, the length YS2 of the second region SA2 of the first yoke YK1 is the same as the length YS2 of the second region SA2 of the second yoke YK2. Also, the length YS1 of the first region SA1 of the first yoke YK1 is the same as the length YS1 of the first region SA1 of the second yoke YK2.

[0556] Furthermore, with respect to tele as a reference, the length YS2 of the second region SA2 in the first yoke YK1 may be larger than the length in the optical axis direction of the overlapping region between the second region SA2 and the first pole region.

[0557] Also, the length YS2 of the second region SA2 in the first yoke YK1 may be smaller than the sum of the length in the optical axis direction of the overlapping region between the second region SA2 and the first pole region and the length in the optical axis direction of the neutral region.

[0558] Furthermore, 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 optical axis direction may be smaller than the length of the second region SA2. Therefore, the second region SA2 can easily block the magnetism generated in the first pole region. Alternatively, the length of the first pole region in the optical axis direction may be larger than the length of the second region SA2. Therefore, the actuator can provide an improved driving force. Also, the length YS2 of the second region SA2 may be smaller than the length of the first magnet 1252a in the optical axis direction.

[0559] Also, with respect to tele, the boundary region between the first region SA1 and the second region SA2 may overlap with the neutral region NA in the second direction.

[0560] As a modification, the second region SA2 of the second yoke YK2 may overlap with the first pole region of the second magnet 1252b in the second direction.

[0561] Referring to FIG. 30, the second lens assembly can be moved by increasing the current to the second coil. In FIGS. 30 and 31, the target position means the position or set position (or required position) of the second lens assembly with respect to the coil current. Also, the hall sensor output is the output value of the hall sensor with respect to the second lens assembly and means the actual position of the second lens assembly. Furthermore, FIGS. 30 and 31 are described based on the state where the position of the first lens assembly is fixed or hardly moves.

[0562] Thus, when the structure with different thicknesses is not applied to the yoke portion, it can be seen that the target position or the set position increases corresponding to the coil current (excluding the stopper region). However, in the actual position of the second lens assembly, there is a section where it does not change corresponding to the coil current. That is, when the second lens assembly is adjacent to the first lens assembly, the difference in magnitude between the actual position and the target position or the set position may become large, or may become larger than a predetermined difference value. In other words, when the yoke portion does not have the 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, the problem that the gap between the target position and the actual position increases occurs. Or, there is a section where the actual position does not change corresponding to the target position.

[0563] In contrast, referring to FIG. 31, as in the embodiment, when the yoke portion includes the second region and the first region (see FIGS. 28 and 29), it can be seen that the target position or the set position increases corresponding to the coil current. Also, it can be seen that the actual position of the second lens assembly moves corresponding to the coil current. That is, when the second lens assembly is adjacent to the first lens assembly, the difference in magnitude between the actual position and the target position or the set position can be maintained, or may be smaller than a predetermined difference value. In other words, the yoke portion 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. In other words, the yoke portion can reduce the above-described magnetic field interference and suppress the gap between the target position and the actual position from becoming large.

[0564] FIG. 32 is a perspective view showing a circuit board according to another embodiment and the separation of the first camera actuator and the second camera actuator.

[0565] In the camera module according to the embodiment, the first camera actuator 1100, the second camera actuator 1200, and the circuit board or the main board portion 1300 may be sequentially arranged in one direction or the optical axis direction (Z-axis direction). Therefore, the second camera actuator 1200 may be located at the rear end of the first camera actuator 1100.

[0566] Also, the first camera actuator 1100 and the second camera actuator 1200 can have surfaces facing each other. For example, it can be described that the first surface of the first camera actuator 1100 and the second surface of the second camera actuator 1200 face each other. Also, the first surface may correspond to the outer surface of the housing side portion described above, or may correspond to the rear surface of the first camera actuator 1100. Also, the second surface may be the front surface of the second camera actuator 1200 or the front surface of the third lens assembly. A joining member or the like may be applied to the first surface and the second surface. Also, the first surface and the second surface can be coupled to each other through a protrusion / groove structure. Therefore, the first camera actuator 1100 and the second camera actuator 1200 can be coupled to each other. That is, the first camera actuator 1100 and the second camera actuator 1200 can be directly or indirectly coupled in various ways.

[0567] FIG. 33a is a perspective view of a circuit board, a first driving portion (excluding a part), and a second driving portion (excluding a part) according to an embodiment, FIG. 33b is a conceptual diagram for explaining the connection of a circuit board, a first driving portion (excluding a part), and a second driving portion (excluding a part) according to an embodiment, FIG. 33c is a conceptual diagram for explaining the connection of a circuit board, a first driving portion (excluding a part), and a second driving portion (excluding a part) according to a modified example, FIG. 33d is a conceptual diagram for explaining the connection of a circuit board, a first driving portion (excluding a part), and a second driving portion (excluding a part) according to another embodiment, and FIG. 33e is a conceptual diagram for explaining the connection of a circuit board, a first driving portion (excluding a part), and a second driving portion (excluding a part) according to another embodiment.

[0568] Referring to FIG. 33a, the main board portion (corresponding to the "circuit board") 1300 according to the embodiment may at least partially surround the side surface of the second camera actuator. For example, the main board portion 1300 may at least partially 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, second direction).

[0569] Also, the second board portion 1270 according to the embodiment may be disposed on the side surface by the second camera actuator. For example, the second board portion 1270 may be in contact with the side surface of the second camera actuator (e.g., the second housing).

[0570] Also, the first board portion 1154 according to the embodiment may be disposed on the side surface by the first camera actuator. For example, the first board portion 1154 can be in contact with the side surface of the first camera actuator (e.g., the first housing).

[0571] Specifically, an image sensor may be mounted on the main board portion 1300. The main board portion 1300 may include a first unit main board 1310 that overlaps with the second camera actuator (or the first camera actuator) along the optical axis direction (Z-axis direction), and a second unit main board 1320 that extends from the first unit main board 1310 to the side surface of the second camera actuator. Further, the main board portion 1300 may extend to both side surfaces of the second camera actuator and further include a third unit main board (not shown). The third unit main board (not shown) may be located opposite to the second unit main board 1320 with respect to the optical axis.

[0572] First, an image sensor and a sensor base may be disposed on the first unit main board 1310.

[0573] Further, at least one of the second unit main board 1320 and the third unit main board (not shown) according to the embodiment may extend along the optical axis direction so as 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 overlap only in the horizontal direction with the second camera actuator.

[0574] Hereinafter, the second unit main board 1320 may extend along the optical axis direction so as to partially surround the first camera actuator. Therefore, the second unit main board 1320 may at least partially overlap with the first camera actuator in the second direction (Y-axis direction).

[0575] Any one of the second unit main board 1320 and the third unit main board (not shown) may be connected to the above-described connector portion CN. Except for FIGS. 33b to 33e, the description will be made on the basis that the main board portion 1300 includes the first unit main board 1310 and the second unit main board 1320.

[0576] Further, the second unit main board 1320 may be connected to an end of the first unit main board 1310 and extend in the optical axis direction or the third direction (Z-axis direction). That is, the second unit main board 1320 may be bent at the main board portion 1300 and 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).

[0577] The first unit main board 1310 and the second unit main board 1320 may have an integrated structure or a separated structure. In the embodiment, the first unit main board 1310 and the second unit main board 1320 may include an integrated common board (common board FP described later). Further, each of the first unit main board 1310 and the second unit main board 1320 may include individual boards RP1 to RP4.

[0578] In an embodiment, the first unit main board 1310 and the second unit main board 1320 may be composed of a plurality of layers. Further, the first unit main board 1310 and the second unit main board 1320 may include holes for circuit patterns or a plurality of layers inside. That is, the first unit main board 1310 may have a structure in which individual substrates, common substrates, or individual substrates are stacked. Also, the second unit main board 1320 may also have a structure in which individual substrates, common substrates, or individual substrates are stacked. At this time, the individual substrate and the common substrate have circuit patterns inside and may include one or more layers.

[0579] For example, in the first unit main board 1310 and the second unit main board 1320, rigid printed circuit boards and flexible printed circuit boards may be arranged in a plurality of layers.

[0580] As a modification, the first unit main board 1310 may have a structure in which a flexible printed circuit board, a rigid printed circuit board, and a flexible printed circuit board are stacked in this order. Also, in the regions where the flexible printed circuit boards are arranged in the first unit main board 1310 and the second unit main board 1320, a reinforcing material or a reinforcing plate may be further arranged. For example, a reinforcing plate may be further arranged on the upper or lower part of the first unit main board 1310.

[0581] Also, in this specification, the first unit main board and the second unit main board may include a common substrate that is a flexible printed circuit board. Also, in the first unit main board and the second unit main board, a rigid printed circuit board may be arranged inside and / or outside the flexible printed circuit board.

[0582] Also, the second substrate portion 1270 may include a first substrate 1271 and a second substrate 1272. The first substrate 1271 may face the second unit main board 1320 and may overlap the second unit main board 1320 in the horizontal direction.

[0583] In other words, the second camera actuator may include a first substrate and a second substrate. At this time, the first substrate of the second camera actuator can correspond to the main substrate portion 1300 described later. Also, the second substrate of the second camera actuator can correspond to the second substrate portion 1270.

[0584] Therefore, in the second camera actuator, the first substrate may include a first unit substrate and a second unit substrate. Here, the first unit substrate of the first substrate (main substrate portion) can correspond to the first unit main substrate 1310 or the first circuit board portion. Also, the second unit substrate of the first substrate (main substrate portion) can correspond to the second unit main substrate 1320 or the second circuit board portion.

[0585] Also, in the second camera actuator, the second substrate may include a first unit substrate and a second unit substrate. Here, the first unit substrate of the second substrate (second substrate portion) can correspond to "first substrate 1271". Also, the second unit substrate of the second substrate (second substrate portion) can correspond to "second substrate 1272".

[0586] Therefore, the second substrate may overlap in a direction perpendicular to the optical axis direction. That is, it may be composed of the first and second unit substrates (first and second substrates 1271, 1272) that overlap in a direction perpendicular to the optical axis (for example, the second direction).

[0587] Thereby, in the second camera actuator, the first substrate (main substrate portion) may be located on the first side surface and the second side surface (and / or the second side surface). Also, the second substrate (second substrate portion) may be located on the second side surface and the third side surface.

[0588] Furthermore, the first substrate 1271 and the second substrate 1272 may be spaced apart from the first unit main substrate 1310 in the optical axis direction. Therefore, it is possible to secure the size of a sensor base or the like disposed on the first unit main substrate 1310. Furthermore, the sensor base becomes larger, and the elements mounted on the first unit main substrate 1310 are not exposed to the outside. That is, the reliability of the circuit elements can be improved. Also, the sizes of the first substrate 1271 and the second substrate 1272 are reduced, and miniaturization and weight reduction of the camera module can be effectively provided.

[0589] The first substrate 1271 and the second substrate 1272 may be arranged symmetrically with respect to each other with the optical axis or the optical axis direction as a reference. Furthermore, each of the first substrate 1271 and the second substrate 1272 can be electrically connected to the first coil and the second coil. Also, the first substrate 1271 may be disposed on the side surface of the second camera actuator.

[0590] Also, the second substrate portion 1270 may include a substrate connection member 1273 (see FIG. 36a) that connects the first substrate 1271 and the second substrate 1272. Therefore, the reliability of the first substrate 1271 and the second substrate 1272 can be improved.

[0591] The first substrate portion 1154 may include a first sub-substrate 1154a disposed on the bottom surface of the first camera actuator, and a second sub-substrate 1154b and a third sub-substrate 1154c disposed on the side surface of the first camera actuator, respectively.

[0592] As described above, the first sub-substrate 1154a is disposed below the first camera actuator and may at least partially overlap the first camera actuator in the first direction (X-axis direction).

[0593] The second sub-substrate 1154b and the third sub-substrate 1154c may surround the side surface of the first camera actuator. Also, the second sub-substrate 1154b and the third sub-substrate 1154c may be in contact with at least a part of the side surface of the first camera actuator.

[0594] Such a second sub-substrate 1154b and a third sub-substrate 1154c may be arranged symmetrically with respect to each other based on the optical axis or the optical axis direction. The second sub-substrate 1154b may be arranged adjacent to the first housing side portion. Further, the third sub-substrate 1154c may be arranged adjacent to the second housing side portion.

[0595] In addition, the second sub-substrate 1154b may be arranged adjacent to the first substrate 1271. For example, the second sub-substrate 1154b may at least partially overlap with the first substrate 1271 along the optical axis direction. Alternatively, the second sub-substrate 1154b may be located outside the first substrate 1271 with the optical axis as the center.

[0596] In addition, the third sub-substrate 1154c may be arranged adjacent to the second substrate 1272. For example, the third sub-substrate 1154c may at least partially overlap with the second substrate 1272 along the optical axis direction. Alternatively, the third sub-substrate 1154c may be located outside the second substrate 1272 with the optical axis as the center.

[0597] Furthermore, the second sub-substrate 1154b may be in contact with at least a part of the second unit main substrate 1320. Also, the second sub-substrate 1154b may be surrounded by the second unit main substrate 1320.

[0598] Furthermore, the second camera actuator may include a first substrate 1271 having a second terminal portion. The second terminal portion may be soldered to the first terminal portion of the second unit main substrate 1320 described later. In other words, in the second camera actuator, the second substrate (second substrate portion) can have a first unit substrate (first substrate) and a second unit substrate (second substrate). Also, a region of the first substrate (first unit substrate) arranged on the second side surface may include a plurality of terminals (first terminal portions). Further, a region of the second substrate (second substrate of the second substrate portion) may include a plurality of pads (corresponding to the second terminal portions).

[0599] Therefore, an image sensor may be located on the first unit substrate of the first substrate (main substrate). Further, the second unit substrate of the first substrate may be connected to the first unit substrate and may include a plurality of terminals (first terminal portion).

[0600] Also, the first unit substrate of the second substrate (second substrate portion) may be located on the first side surface of the second actuator. Further, the second unit substrate of the second substrate may be connected to the first unit substrate and may include a plurality of pads (second terminal portion).

[0601] Therefore, as will be described later, the second unit substrate (second unit main substrate) of the first substrate and the second unit substrate (second substrate) of the second substrate may overlap each other in a direction perpendicular to the optical axis (for example, the second direction).

[0602] Also, at least a part of the plurality of terminals (first terminal portion) on the second unit substrate of the first substrate may correspond to at least a part of the plurality of pads (second terminal portion) on the second unit substrate of the second substrate.

[0603] Furthermore, as disclosed in this specification, at least one of the first unit substrate and / or the second unit substrate of the first substrate and at least one of the first unit substrate and / or the second unit substrate of the second substrate may be soldered and joined. Here, any one on the first substrate and any one on the second substrate can be positionally corresponding. For example, any one on the first substrate and any one on the second substrate may be positioned to face each other. For example, the first unit substrate (including a plurality of terminals or first terminal portion) of the first substrate and the first unit substrate (including a plurality of pads or second terminal portion) of the second substrate may be soldered and connected. Alternatively, the second unit substrate (including a plurality of terminals or first terminal portion) of the first substrate and the second unit substrate (including a plurality of pads or second terminal portion) of the second substrate may be soldered and connected.

[0604] In other words, either one of the first substrate 1271 and the second substrate 1272 may include a second terminal portion. The second terminal portion may be entirely disposed on each or either one of the first substrate 1271 and the second substrate 1272. For example, the first substrate 1271 of the second camera actuator may include a second terminal portion. Also, the plurality of sub-substrates of the first actuator may include a fourth terminal portion.

[0605] Hereinafter, except for FIGS. 33b to 33e, the description will be based on the first substrate 1271 including a second terminal portion. Also, hereinafter, the description will be based on any one of the plurality of first sub-substrates being the second sub-substrate 1154b and the second sub-substrate 1154b including a fourth terminal portion.

[0606] Furthermore, the second unit main substrate 1320 may include a first terminal portion and a third terminal portion. The first terminal portion may be positioned corresponding to the second terminal portion. Also, the third terminal portion may be positioned corresponding to the fourth terminal portion. Also, the first terminal portion may be soldered to the second terminal portion. In other words, a plurality of terminals (first terminal portion) disposed in a region (for example, on the second side surface) of the first substrate (main substrate) and a plurality of pads (second terminal portion) disposed in a region (for example, on the second side surface) of the second substrate (second substrate portion) may be soldered to each other. In an embodiment, at least a part of the first terminal portion may be soldered to at least a part of the second terminal portion. Therefore, the first terminal portion and the second terminal portion can be electrically connected. Also, the third terminal portion may be soldered to the fourth terminal portion. Therefore, the third terminal portion and the fourth terminal portion can be electrically connected.

[0607] Furthermore, the second terminal portion may be disposed on at least one of the first substrate 1271 or the second substrate 1272. In the following various embodiments, the second terminal portion may be disposed on the first substrate 1271 or the second substrate 1272 in various manners. Further, the first substrate 1271 and the second substrate 1272 can be electrically connected to each other via a connection substrate. Therefore, as shown in FIG. 33d or FIG. 33e, the second terminal portion SG2 may be disposed on the first substrate 1271 or on the second substrate 1272. Correspondingly, the first terminal portion SG1 may be disposed on at least one of the second unit main substrate 1320 and the third unit main substrate 1330.

[0608] Referring further to FIG. 33b, the second unit main substrate 1320 may extend along the optical axis direction corresponding to or facing the first sub-substrate 1154a. The second unit main substrate 1320 may at least partially overlap the first sub-substrate 1154a in the horizontal direction (Y-axis direction). Also, the third unit main substrate 1330 may be disposed so as to correspond to the second substrate 1272. Therefore, the third unit main substrate 1330 may extend to a region corresponding to the second substrate 1272. Thereby, the length of the second unit main substrate 1320 in the optical axis direction may be at least the same as or greater than that of the third unit main substrate 1330.

[0609] Also, in the present embodiment, the first terminal portion SG1 and the third terminal portion SG3 may be disposed on the second unit main substrate 1320. Also, the first terminal portion SG1 may also be disposed on the third unit main substrate 1330.

[0610] Also, the first terminal portion SG1 can be electrically connected to the second terminal portion SG2 on the first substrate 1271 or the second substrate 1272 by soldering.

[0611] Also, in the embodiment, the first terminal portion and the second terminal portion may be at least six in number.

[0612] Furthermore, the plurality of terminals and the plurality of pads may correspond to each other one-to-one. Therefore, the number of the plurality of terminals or the plurality of pads may be the same as the number of soldering points. Further, for easy coupling or connection, the cross-sectional area of the plurality of pads may be larger than the cross-sectional area of the plurality of terminals. Also, the plurality of terminals may include grooves formed in some regions.

[0613] Also, the plurality of terminals may at least partially overlap the plurality of pads in a direction perpendicular to the optical axis. Therefore, the electrical reliability can be improved.

[0614] The plurality of terminals may be arranged along the optical axis with respect to each other, and the plurality of pads may be arranged along the optical axis with respect to each other.

[0615] Also, as described above, the second unit main substrate 1320 may include a third terminal portion SG3 that is coupled or soldered to the fourth terminal portion SG4. At this time, the second unit main substrate 1320 may at least partially overlap the first sub-substrate 1154a in the optical axis direction. Also, the first sub-substrate 1154a may include the fourth terminal portion SG4. Also, the third terminal portion SG3 and the fourth terminal portion SG4 can be coupled to each other by soldering and electrically connected.

[0616] Therefore, the fourth terminal portion SG4, the third terminal portion SG3, and the first terminal portion SG1 (or the second terminal portion SG2) may be sequentially arranged along the optical axis direction (Z-axis direction).

[0617] Also, as described above, in this specification, the first terminal portion SG1 can be electrically connected to the second terminal portion SG2, and the third terminal portion SG3 can be electrically connected to the fourth terminal portion SG4. For such electrical connections, the content described later can be applied.

[0618] Referring to FIG. 33c, as a modification, the fourth terminal portion SG4 of the first sub-substrate 1154ab may be positioned corresponding to the third terminal portion SG3 of the second unit main substrate 1320. Also, the second terminal portion SG2 may be disposed on the first substrate 1271.

[0619] At this time, the second unit main substrate 1320 may be a portion that bends at the first unit main substrate 1310 where the image sensor is disposed and extends in the optical axis direction. Therefore, the second unit main substrate 1320 may be the second main substrate, and the first unit main substrate 1310 may be the first main substrate.

[0620] Also, the second unit main substrate 1320 may include, as described above, a third terminal portion SG3 formed at a position corresponding to the fourth terminal portion SG4 and a first terminal portion SG1 formed at a position corresponding to the second terminal portion SG2. That is, the main substrate may be simply designed. In this example, without the third unit main substrate, all of the first terminal portion SG1 and the third terminal portion SG3 may be disposed on the second unit main substrate 1320 disposed on one side of the first unit main substrate 1310. Thereby, the manufacturing cost of the main substrate and the like can be easily reduced. For other contents, the contents applicable to the description in this specification can be applied in the same manner.

[0621] Referring to FIG. 33d, in another embodiment, the fourth terminal portion SG4 of the first sub-substrate 1154a may be positioned corresponding to the third terminal portion SG3 of the second unit main substrate 1320. Also, the second terminal portion SG2 may be disposed on the second substrate 1272.

[0622] In other words, the second terminal portion may not be located on the first substrate 1271. Also, the second terminal portion SG2 may be disposed on the second substrate 1272, and the first terminal portion SG1 may be disposed on the third unit main substrate 1330. The first terminal portion SG1 may be positioned corresponding to the second terminal portion SG2.

[0623] Further, the second terminal portion SG2 may be soldered to, coupled with, or connected to the first terminal portion SG1 by a connector or the like. Hereinafter, the same applicable content as the description in this specification can be similarly applied to other contents.

[0624] Referring to FIG. 33e, in another embodiment, the fourth terminal portion SG4 of the first sub-substrate 1154a may be positioned corresponding to the third terminal portion SG3 of the second unit main substrate 1320. Further, the second terminal portion SG2 may be disposed on the first substrate 1271.

[0625] In other words, the second terminal portion may be located on the first substrate 1271. Further, the second terminal portion may not exist on the second substrate 1272.

[0626] Furthermore, the second terminal portion SG2 may be disposed on the first substrate 1271, and the first terminal portion SG1 may be disposed on the second unit main substrate 1320. The first terminal portion SG1 may be positioned corresponding to the second terminal portion SG2.

[0627] Also, the third terminal portion SG3 may be located on the first sub-substrate 1154a of the first actuator.

[0628] In this example, unlike FIG. 33c, the fourth terminal portion SG4 may overlap the third terminal portion SG3 in the optical axis direction. Further, the second sub-substrate 1154b may overlap the second unit main substrate 1320 in the optical axis direction. Also, at least a part of the second sub-substrate 1154b may be located outside the optical axis with respect to the first substrate 1271.

[0629] Therefore, in the various embodiments described above, the first actuator can be coupled with an optical member (prism), and the second actuator can be coupled with a lens. However, depending on the structure, conversely, the first actuator can be coupled with a lens and the second actuator can be coupled with a prism.

[0630] Furthermore, the first terminal portion SG1 may include a groove that exposes a part of the second terminal portion SG2. For example, the first terminal portion SG1 may have a notch structure. Furthermore, the first terminal portion SG1 may include an exposed conductive region. Such an exposed conductive region can be electrically connected to a circuit pattern within the substrate. Also, the exposed region may be made of metal. For example, the exposed region may be made of copper foil.

[0631] Also, when the third terminal portion SG3 and the fourth terminal portion SG4 overlap in the horizontal direction (Y-axis direction), the third terminal portion SG3 may include a groove that exposes a part of the fourth terminal portion SG4. Alternatively, the third terminal portion SG3 and the fourth terminal portion SG4 may each have an exposed conductive region.

[0632] Also, the electrical connection between the terminal portions described above may be made by a conductive member or a conductive component. For example, the second terminal portion may be connected to the first terminal portion by a conductive member. This can be similarly applied to the third terminal portion and the fourth terminal portion.

[0633] As another example, each terminal portion may be connected by a connector.

[0634] FIG. 34 is a plan view of a circuit board, a first driving portion (excluding a part), and a second driving portion (excluding a part) according to an embodiment.

[0635] According to the embodiment, as described above, the main substrate portion 1300 may include a sensor base SB disposed on the first unit main substrate 1310. Also, an image sensor may be disposed within the sensor base SB. The image sensor may be mounted on the first unit main substrate 1310.

[0636] Also, the second unit main substrate 1320 connected to the first unit main substrate 1310 and extending along the optical axis direction may be located outside the first substrate 1271.

[0637] At this time, the first substrate 1271 can be coupled to the second unit main substrate 1320 with the outer first yoke interposed therebetween. As a coupling member for such coupling, a binder made of various materials such as epoxy can be used.

[0638] In addition, the first substrate 1271 according to the embodiment may be disposed at a distance from the sensor base SB in the optical axis direction. For example, a first isolation distance gapa may be formed between the first substrate 1271 and the sensor base SB. Further, the first substrate 1271 may be disposed at a distance from the first unit main substrate 1310 in the optical axis direction. For example, a second isolation distance gapb may be formed in the optical axis direction between the first substrate 1271 and the first unit main substrate 1310.

[0639] Also, the first isolation distance gapa may be smaller than the second isolation distance gapb.

[0640] In addition, the content described for the first substrate 1271 can be similarly applied to the second substrate 1272. That is, the second substrate 1272 may be disposed at a distance from the sensor base SB and the first unit main substrate 1310.

[0641] With such a configuration, the size of the sensor base SB can be easily increased. Also, more circuit elements on the first unit main substrate 1310 can be mounted and protected within the sensor base SB. Also, the size of the first substrate (or the second substrate) can be reduced to achieve miniaturization.

[0642] In addition, the first substrate 1271 may partially overlap the sensor base SB in the optical axis direction. Therefore, miniaturization of the second camera actuator can be achieved.

[0643] Also, the plurality of sub-substrates of the first actuator may not overlap the second unit main substrate 1320 in the horizontal direction (Y-axis direction).

[0644] Further, the second unit main board 1320 and a plurality of sub-boards (hereinafter, the second sub-board 1154b) may at least partially overlap in the optical axis direction (Z-axis direction). Further, at least one of the plurality of sub-boards may have a fourth terminal portion. For example, the second sub-board 1154b may include a fourth terminal portion. Thereby, easy connection can be realized by soldering between the third terminal portion and the fourth terminal portion.

[0645] As another example, a plurality of sub-boards, that is, the second sub-board 1154b may overlap with the second unit main board 1320 in the horizontal direction (Y-axis direction). Therefore, soldering connection between the third terminal portion and the fourth terminal portion can be performed more easily.

[0646] At this time, at least a part of the second unit main board 1320 may be located outside the optical axis with respect to the second sub-board 1154b.

[0647] Further, in the second unit main board, an end portion 1320ea adjacent to the first actuator may be located inside an end portion 1320eb in contact with the first unit main board. For example, in the second unit main board, the distance between the end portion 1320ea adjacent to the first actuator and the first coil 1251a may be larger than the distance between the end portion 1320eb where the second unit main board contacts the first unit main board and the first coil 1251a. Alternatively, the end portion 1320ea adjacent to the first actuator on the second unit main board and the end portion 1320eb in contact with the first unit main board may have a separation distance gapc in the horizontal direction.

[0648] That is, the second unit main board 1320 may have a structure that approaches the optical axis as it goes in the direction opposite to the optical axis.

[0649] Further, in the embodiment, the first board 1271 and the second board 1272 may be located in a region between the first sub-board 1154a and the second sub-board 1154b which are a plurality of sub-boards.

[0650] Furthermore, the first substrate 1271 may overlap with the first coil 1251a along the optical axis direction (Z-axis direction). Also, the second substrate 1272 may overlap with the second coil 1152b along the optical axis direction (Z-axis direction).

[0651] Also, at least a part of the first coil 1251a and the second coil 1251b may be located in the region between the first coil 1251a and the second coil 1152b. Also, at least a part of the first coil 1251a and the second coil 1251b may overlap with each other along the optical axis direction between the first coil 1251a and the second coil 1152b, respectively.

[0652] For example, the distance Laa in the horizontal direction (Y-axis direction) between the first coil 1251a and the second coil 1152b may be greater than the distance Lab in the horizontal direction between the first coil 1251a and the second coil 1251b.

[0653] Furthermore, the first yoke may overlap with the first coil 1251a along the optical axis direction. Also, the second yoke may overlap with the second coil 1152b along the optical axis direction.

[0654] FIG. 35a is a perspective view and a plan view of a circuit board according to an embodiment, FIG. 35b is a side view of the circuit board according to the embodiment, FIG. 35c is a rear view of the circuit board according to the embodiment, FIG. 35d is a front view of the circuit board according to the embodiment, FIG. 35e is an inner plan view of the circuit board according to the embodiment unfolded, and FIG. 35f is an outer plan view of the circuit board according to the embodiment unfolded.

[0655] Considering FIG. 35a, the second unit main substrate 1320 may be connected to the connector portion CN. Through the connector portion CN, the camera module can be connected to an element (e.g., a processor, etc.) within the terminal. The connection elements of such a connector portion CN can be arranged at various positions and can have various shapes.

[0656] As described above, the first unit main board 1310 may include a common board FP and individual boards RP1 and RP2 inside and / or outside the common board.

[0657] Specifically, hereinafter, in the first unit main board 1310, the first individual board RP1 may be located outside the common board FP. Also, in the first unit main board 1310, the second individual board RP2 may be located inside the common board FP.

[0658] The first unit main board 1310 can have rigidity in the area where the sensor base SB, the image sensor, etc. are mounted by the first individual board RP1 and the second individual board RP2.

[0659] Also, the second unit main board 1320 may also include a common board FP and individual boards RP3 and RP4 inside and / or outside the common board.

[0660] In the second unit main board 1320, the third individual board RP3 may be located outside the common board FP. Also, in the second unit main board 1320, the fourth individual board RP4 may be located inside the common board FP.

[0661] As described above, the first unit main board 1310 and the second unit main board 1320 may commonly include a common board FP. Such a common board may be of an integrated type.

[0662] Also, the fourth individual board RP4 may face the first yoke or the first board.

[0663] Referring to FIG. 35b, the second unit main board 1320 may include a first terminal portion SG1. At this time, the first terminal portion SG1 may be located in one layer of the second unit main board 1320. For example, the first terminal portion SG1 may be located in the outermost layer of the second unit main board 1320. Therefore, the first terminal portion SG1 may be located on the third individual board RP3. Therefore, a part of the third individual board RP3 can be exposed. Also, the exposed area may be formed of a conductive material as described above.

[0664] Also, the lengths of the third individual board RP3 and the fourth individual board RP4 in the optical axis direction may be smaller than the length of the common board FP in the optical axis direction.

[0665] The common board FP may extend adjacent to the first actuator. Also, a third terminal portion SG3 may be located on the common board FP. Therefore, the first terminal portion SG1 may be located outside the optical axis with respect to the third terminal portion SG3.

[0666] Also, each of the first terminal portion Sg1 and the third terminal portion SG3 may be located in different layers on the second unit main board 1320.

[0667] Also, there may be a plurality of the first terminal portions SG1, and they may be arranged along the optical axis direction. Also, there may be a plurality of the third terminal portions SG3, and they may be arranged along the first direction or the vertical direction (X-axis direction).

[0668] Therefore, the first terminal portion SG1 and the third terminal portion SG3 may be arranged in different directions from each other. Therefore, soldering can be easily performed for each of the first terminal portion SG1 and the third terminal portion SG3.

[0669] Furthermore, the first terminal portion SG1 is located outside the second unit main board 1320, and soldering work can be easily performed. Furthermore, the first terminal portion SG1 may also be located at a corner on the third individual board RP3. Thereby, soldering work can be performed more easily.

[0670] Furthermore, the second unit main board 1320 may include a first side area RA1, a first connection area BA1, and a second connection area BA2. The first side area RA1 may correspond to the area where the individual board is located. Also, the first connection area BA1 may be located between the first side area RA1 and the first unit main board 1310. Also, the second connection area BA2 may be an area adjacent to the first actuator.

[0671] The first terminal portion SG1 may be located in the first side area RA1. Also, the third terminal portion SG3 may be located in the second connection area BA2.

[0672] The first side area RA1 according to the embodiment may overlap with the fourth and fifth coils along the second direction (Y-axis direction). Also, the second unit main board 1320 may not overlap with the first and second coils in the horizontal direction.

[0673] Also, the first connection area BA1, the first side area RA1, and the second connection area BA2 may be sequentially located in the direction opposite to the optical axis direction.

[0674] The first side region RA1 may further include a material different from the first connection region BA1 and the second connection region BA2. Alternatively, as described above, the first connection region BA1 and the second connection region BA2 may be formed of a flexible printed circuit board without including a rigid printed circuit board. Alternatively, the first connection region BA1 and the second connection region BA2 may be more flexible than the first side region RA1. The region made of a flexible substrate can correspond to a flexible region (or connection region), and the region including a rigid substrate can correspond to a rigid region (side region). For example, the first connection region BA1 and the second connection region BA2 are flexible printed circuit boards (FPCBs), and the first side region RA1 may be a rigid printed circuit board (RPCB) or a region in which a rigid printed circuit board is further arranged on a flexible substrate. With such a configuration, since the flexible printed circuit board absorbs impacts and the like, the camera module according to the embodiment can prevent disconnection or separation of the above-described substrates (circuit board, first substrate portion, second substrate portion) even when the electronic device shakes or moves. Further, the second connection region BA2 can also have a step on the inside. Therefore, the coupling force between the first actuator and the second actuator and the main board (for example, the second unit main board) can be improved.

[0675] Also, the first connection region BA1 and the second connection region BA2 according to the embodiment may have a step with the first side region RA1. For example, the first connection region BA1 and the second connection region BA2 may be separated from the first side region RA1 by a predetermined distance in the second direction (Y-axis direction).

[0676] Referring to FIG. 35c, a heat sink HD may be further arranged on the first unit main board 1310. Such a heat sink may be located outside the common substrate FP. For example, the heat sink HD may be located outside the first individual substrate RP1. Thereby, the heat generated by the image sensor can be easily released to the outside. Further, the heat sink HD may be formed in various shapes such as a square or a circle.

[0677] Referring to FIG. 35d, in the first unit main board 1310, the image sensor IS may be located on the second individual board RP2. The image sensor IS is mounted on the first unit main board 1310 and can be electrically connected to a board (common board or individual board). Therefore, there may be terminals for electrical connection to the image sensor IS. The image sensor may be connected to the first unit main board 1310 by various methods such as wires and soldering.

[0678] Also, the common board FP may be longer in the first direction than the third individual board RP3 and the fourth individual board RP4. This can also be similarly applied to the common board FP and the first and second individual boards.

[0679] Further considering FIGS. 35e and 35f, the second unit main board 1320 may include an inner board surface 1320a facing the first board and an outer board surface 1320b opposite to the inner board surface 1320a. The inner board surface 1320a corresponds to the fourth individual board. The outer board surface 1320b corresponds to the third individual board.

[0680] Also, the first side region RA1 may include a first side hole 1320h1. The first side hole 1320h1 can be coupled to the second board and the second camera actuator through a protrusion of the second camera actuator or the like.

[0681] A first terminal portion SG1 may be disposed on the outer board surface 1320b. The first terminal portion SG1 may be disposed along the edge of the outer board surface 1320b. In this specification, a plurality of terminal portions are regions where electrical connection is made, and the electrode pattern can be exposed to the outside.

[0682] The first terminal portion SG1 may be disposed on the long side rather than the short side of the edge of the first side region RA1. With such a configuration, it is possible to easily secure the arrangement space of the first terminal portion SG1 electrically connected by the second unit main board. Therefore, the occurrence of short circuits can be easily prevented, and various electrical designs are possible.

[0683] Further, a third terminal portion SG3 may be disposed in the second connection region BA2 of the outer surface 1320b of the substrate or the second unit main substrate 1320. Further, the third terminal portion SG3 may be disposed on the long side rather than the short side among the edges of the second connection region BA2. Accordingly, the occurrence of a short circuit can be suppressed, and electrical design can be easily performed.

[0684] Further, as will be described later, the first terminal portion SG1 may be disposed on the second unit main substrate 1320, and the second terminal portion SG2 may be disposed on the first substrate 1271. That is, the first terminal portion SG1 may be disposed on any of the second unit main substrates 1320. Further, the second terminal portion may be disposed on either the first substrate 1271 or the second substrate 1272 of the second camera actuator.

[0685] As a modification, the first terminal portion SG1 may be disposed on the inner surface 1320a of the substrate. Further, the first terminal portion SG1 may be disposed on the long side and / or the short side of the edge of the first side region RA1 on the inner surface 1320a of the substrate.

[0686] In this way, the first unit main substrate 1310 can be electrically connected to the first camera actuator and the second camera actuator via the second unit main substrate 1320 or the third unit main substrate. Accordingly, one or more drive driver ICs can be mounted on the main substrate portion. That is, the number of mounted drive drivers can be easily adjusted. Further, since the first camera actuator and the second camera actuator are electrically connected by one second unit main substrate, individual electrical connection structures are eliminated, the bonding process is simplified, and the vulnerability to impact due to bonding can also be reduced.

[0687] That is, the first terminal portion SG1 and the third terminal portion SG3 may be disposed on the inner substrate surface 1320a and the outer substrate surface 1320b of the second unit main substrate. With such a configuration, the main substrate portion can be easily coupled to the first substrate and the second sub-substrate through a conductive member (or a conductive member) described later, and can provide an improved coupling force. The conductive member described later may be formed of various substances of conductive materials. For example, the conductive member may be made of metal, and the second terminal portion SG2 may be disposed inside the first terminal portion SG1. Also, the first yoke YK1 may be disposed on the outer surface of the first substrate 1271. Also, the second yoke YK2 may be disposed on the outer surface of the second substrate 1272.

[0688] Also, the first coil 1251a may be disposed on the inner surface 1271b of the first substrate 1271. The first coil 1251a may be mounted and electrically connected to the inner surface 1271b of the first substrate 1271. Also, the second coil 1251b may be disposed on the inner surface 1272b of the second substrate 1272. The second coil 1251b may be mounted and electrically connected to the inner surface 1272b of the second substrate 1272.

[0689] The connection terminals between the first coil 1251a and the first substrate 1271 may be symmetrically positioned with respect to the optical axis with the connection terminals between the second coil 1251b and the second substrate 1272, or may be offset (diagonal) positions.

[0690] The outer surface 1271a of the first substrate 1271 may face the second unit main substrate. The outer surface 1272a of the second substrate 1272 may face the third unit main substrate (if present).

[0691] FIG. 37a is a perspective view seen from one side of the first driving unit (excluding a part) according to the embodiment, and FIG. 37b is a perspective view seen from the other side of the first driving unit (excluding a part) according to the embodiment.

[0692] Referring to FIGS. 37a and 37b, the first sub-substrate 1154a may be connected to the second sub-substrate 1154b and the third sub-substrate 1154c disposed on the side surface of the first camera actuator. In the first substrate portion 1154, the first sub-substrate 1154a, the second sub-substrate 1154b, and the third sub-substrate 1154c may have an integrated structure or a separated structure. Also, the first sub-substrate 1154a, the second sub-substrate 1154b, and the third sub-substrate 1154c may be connected to each other through a circuit pattern or the like. Further, a processor, a driver IC, or the like may be disposed on any one of the first sub-substrate 1154a, the second sub-substrate 1154b, and the third sub-substrate 1154c. Also, the processor and the driver IC can supply current to each coil mounted on the first sub-substrate 1154a, the second sub-substrate 1154b, and the third sub-substrate 1154c.

[0693] A third coil 1152a may be disposed on the first sub-substrate 1154a according to the embodiment. Also, a first coil 1251a may be disposed on the second sub-substrate 1154b. Also, a second coil 1152b may be disposed on the first sub-substrate 1154a.

[0694] Also, the outer surface of the second sub-substrate 1154b may be positioned corresponding to the second unit main substrate. For example, the second sub-substrate 1154b may overlap with the second unit main substrate along the optical axis direction (Z-axis direction), or may overlap with the second unit main substrate in the horizontal direction (Y-axis direction).

[0695] FIG. 38a is an outer plan view showing a circuit board, a first substrate portion, and a second substrate portion according to the embodiment in an unfolded state, FIG. 38b is an enlarged view of a K1 portion of FIG. 38a, FIG. 38c is an enlarged view of a K2 portion of FIG. 38a, and FIG. 38d is a view seen from OO' of FIG. 38b.

[0696] Referring to FIGS. 38a to 38d, the outer surface of the first terminal portion SG1 may be convex inward or concave outward. With such a configuration, a conductive member can be easily filled into the first terminal portion SG1.

[0697] For example, the second unit main substrate 1320 may be located on the first substrate 1721. Based on this, the second terminal portion SG2 may be located below the first terminal portion SG1. The first terminal portion SG1 may overlap the second terminal portion SG2 in the second direction (Y-axis direction).

[0698] The length of the first terminal portion SG1 in the first direction (X-axis direction) may be smaller than the length of the second terminal portion SG2 in the first direction (X-axis direction). With such a configuration, when the conductive member is applied to the first terminal portion SG1 and the second terminal portion SG2, it is possible to prevent the conductive member from flowing down inside the first substrate. Furthermore, the first terminal portion SG1 and the second terminal portion SG2 can be easily coupled to each other by the conductive member.

[0699] Also, the length Waa of the first terminal portion SG1 in the third direction or the optical axis direction may be smaller than the length Wab of the second terminal portion SG2 in the optical axis direction. Therefore, it is possible to prevent the soldered conductive member from flowing down inside the first substrate.

[0700] The width of the first terminal portion SG1 may be smaller than the width of the second terminal portion SG2. Therefore, electrical connection can be performed more accurately. Also, rigidity due to soldering can be easily ensured. Furthermore, even when there is a shift of the first substrate 1271 during active alignment of the first and second lens assemblies or active alignment of the sensor base SB, a soldering area can be easily ensured. Also, the first substrate 1271 may include an exposed area EPA that overlaps the hole of the first terminal portion SG1 in the horizontal direction. The exposed area EPA may be an area separated from the second terminal portion SG2. Thereby, the conductive member can flow through the first terminal portion SG1 and settle on the second terminal portion SG2.

[0701] Further, the third terminal portion SG3 may be positioned corresponding to the fourth terminal portion SG4 of the second sub-substrate 1154b. The third terminal portion SG3 and the fourth terminal portion SG4 may at least partially overlap in the optical axis direction. With such a configuration, electrical connection by soldering between the third terminal portion and the fourth terminal portion can be easily performed.

[0702] The first yoke YK1 disposed outside the first substrate 1271 may be disposed between the second unit main substrate 1320 and the first substrate 1271. Therefore, the first yoke YK1 can easily block the conductive member applied to the first terminal portion SG1 from flowing into the actuator through the first substrate 1271.

[0703] Further, the first yoke YK1 can be coupled to the second unit main substrate 1320 and the first substrate 1271 therebetween. Further, the first yoke YK1 can block the magnetic force or the like provided to the second unit main substrate 1320.

[0704] Also, as described above, the first substrate 1271 may or may not partially overlap with the sensor base SB in the optical axis direction (Z-axis direction).

[0705] Further, the second unit main substrate 1320 may have a length in the vertical direction that is even smaller than that of the first substrate 1271. Therefore, soldering between the first terminal portion SG1 and the second terminal portion SG2 can be easily performed.

[0706] Also, the first terminal portion SG1 may not overlap at least a part of the third terminal portion SG3 in the optical axis direction (Z-axis direction). As described above, the first terminal portion Sg1 may be located at the first corner of the second unit main substrate 1320, and the third terminal portion SG3 may be located at the second corner perpendicular to the first corner. Therefore, the soldering work process can be distinguished according to the position.

[0707] FIG. 39 is a plan view of a sensor base, a filter, and an image sensor according to an embodiment, FIG. 40 is a view seen along JJ' of FIG. 39, and FIG. 41 is a plan view of the sensor base and the image sensor according to the embodiment.

[0708] Referring to FIGS. 39 to 41, in the camera module according to the embodiment, as described above, the main board or the main board portion includes a sensor base surrounding the image sensor IS.

[0709] Further, the sensor base SB may include an inflow groove BH disposed on the upper surface. For example, the main board portion and the sensor base SB can be coupled by a joining member such as epoxy. Also, the sensor base and the second actuator can be coupled by a joining member such as epoxy. At this time, the joining member can flow in between the second camera actuator and the sensor base SB through the inflow groove BH.

[0710] Further, the sensor base SB may include a base groove SBG formed on the side surface. There may be a plurality of base grooves SBG, and they may be offset from each other (diagonally) positioned.

[0711] Also, in the embodiment, the sensor base SB may be composed of a base housing BH including a base hole SBH.

[0712] The base housing BH may include a protrusion BHP extending inward. Therefore, the base hole SBH of the sensor base SB may include a first hole region HA1 positioned above with reference to the extending protrusion BHP, and a third hole region HA3 positioned below. Further, the base hole SBH may include a second hole region HA2 corresponding to the extending protrusion BHP. The area of the second hole region HA2 may be smaller than the area of the first hole region HA1 or the third hole region HA3.

[0713] Further, the main board part or the main board may include a filter F disposed on top of the image sensor IS. The filter F can be seated on the protrusion BHP of the base housing BH. The filter F can block or pass light in a predetermined wavelength band.

[0714] The filter F may be disposed in the first hole region HA1. Further, the first hole region HA1 may further include a blocking structure (e.g., a groove) outside the filter F. Such a groove can prevent the bonding member from overflowing when the bonding member is applied to mount the filter F on the sensor base SB.

[0715] An image sensor may be disposed in the third hole region HA3. Thereby, foreign matter flowing into the image sensor IS can be easily blocked.

[0716] Specifically, after the filter F is attached to the sensor base SB, the sensor base SB and the filter F can be attached or coupled or disposed to the main board part (e.g., the first unit main board) by a bonding member or a coupling member. Also, the vent hole VH connected to the third hole region HA3 can be sealed. Air in the lower part of the filter F or in the second hole region HA2 and the third hole region HA3 can be discharged to the outside through the vent hole VH.

[0717] FIG. 42 is a diagram showing a second housing and a fixed lens assembly according to an embodiment, FIG. 43 is a perspective view of the second housing according to an embodiment, FIG. 44 is a diagram of the fixed lens assembly according to an embodiment, FIG. 45 is a view seen along LL' of FIG. 42, and FIG. 46 is a view seen along MM' of FIG. 42.

[0718] Referring to FIGS. 42 to 46, the third lens assembly 1222c may be located at the front ends 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 may be sequentially arranged along the optical axis direction. The third lens assembly can correspond to the second-1 housing. Also, the first lens group 1221a may be located within the third lens assembly 1222c. Hereinafter, the third lens assembly or the second-1 housing will be used interchangeably.

[0719] The third lens assembly 1222c may be located at the front end of the second-2 housing 1232.

[0720] The upper surface 1232avs of the second-2 housing 1232 may face the lower surface 1222cbs of the third lens assembly 1222c. At this time, a joining member (for example, epoxy) may be disposed between the upper surface 1232avs of the second-2 housing 1232 and the lower surface 1222cbs of the third lens assembly 1222c. Thereby, active alignment with respect to the first lens group 1221a can be performed. For example, after active alignment (such as optical axis alignment) from the first lens group 1221a to the third lens group is performed, the third lens assembly 1222c and the second-2 housing 1232 can be coupled to each other by curing the joining member.

[0721] 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 located on the assembly protrusion 1222cp. For example, there may be a plurality of assembly protrusions 1222cp. Also, a first-1 stopper ST1a may be located on one side of the first lens group 1221a on at least one assembly protrusion 1222cp. Also, a first-2 stopper ST1b may be located on at least one assembly protrusion 1222cp. The first-1 stopper ST1a and the first-2 stopper ST1b may be symmetrically located with respect to the first lens group 11221a or the optical axis.

[0722] Also, the joining member EP may be applied to the outer region EPA with respect to the first stopper on the lower surface 1222cbs. The lower surface 1222cbs has a plurality of grooves or the like, and can be coupled to the second housing 1232 through such grooves. Also, the bonding force can be improved.

[0723] Also, the outer region EPA may not overlap with the first lens group 1221a in the optical axis direction. The outer region EPA may be located outside the first lens group 1221a. Therefore, it is possible to easily block the joining member from affecting the first lens group 1221a.

[0724] Furthermore, grooves may be further formed in the region between the outer region EPA and the first lens group 1221a. Therefore, it is also possible to block the joining member from moving to the first lens group 1221a.

[0725] FIG. 47 is a perspective view of a mobile terminal to which the camera module according to the embodiment is applied.

[0726] As shown in FIG. 47, the mobile terminal 1500 of the embodiment may include a camera module 1000, a flash module 1530, and an autofocus device 1510 provided on the rear surface.

[0727] The camera module 1000 may include an image capturing function and an autofocus function. For example, the camera module 1000 may include an autofocus function using an image.

[0728] The camera module 1000 processes a still image or a video image frame obtained by an image sensor in a shooting mode or a video call mode.

[0729] The processed image frame may be displayed on a predetermined display unit and stored in a memory. A camera (not shown) may also be disposed on the front surface of the mobile terminal body.

[0730] 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 can implement OIS together with an AF or zoom function.

[0731] The flash module 1530 may include a light-emitting element that emits light inside. The flash module 1530 can be operated by the operation of the camera of the mobile terminal or by the control of the user.

[0732] The autofocus device 1510 may include one of the packages of surface-emitting laser elements as a light-emitting part.

[0733] The autofocus device 1510 may include an autofocus function using a laser. The autofocus device 1510 can be mainly used under conditions where the autofocus function using the image of the camera module 1000 deteriorates, for example, at a short distance of 10 m or less or in a dark environment.

[0734] The autofocus device 1510 may include a light-emitting part including a vertical cavity surface-emitting laser (VCSEL) semiconductor element, and a light-receiving part that converts light energy such as a photodiode into electrical energy.

[0735] FIG. 48 is a perspective view of a vehicle to which a camera module according to an embodiment is applied.

[0736] For example, FIG. 48 is an external view of a vehicle including a driving assistance device to which the camera module 1000 according to an embodiment is applied.

[0737] Referring to FIG. 48, the vehicle 700 of the embodiment may include wheels 13FL and 13FR that rotate by a power source and a predetermined sensor. The sensor may be a camera sensor 2000, but is not limited thereto.

[0738] The camera 2000 may be a camera sensor to which the camera module 1000 according to the embodiment is applied. The vehicle 700 of the embodiment can acquire image information through the camera sensor 2000 that captures a front image or a surrounding image, determine a lane non-identification situation using the image information, and generate a virtual lane when the lane is not identified.

[0739] For example, the camera sensor 2000 can capture the front of the vehicle 700 to obtain a front image, and a processor (not shown) can analyze the objects included in such a front image to obtain image information.

[0740] For example, when objects corresponding to lanes, adjacent vehicles, driving obstacles, and indirect road markings such as a median strip, a curb, and a street tree are captured in the image captured by the camera sensor 2000, the processor may detect such objects and include them in the image information. At this time, the processor can obtain distance information from the objects detected by the camera sensor 2000 to further supplement the image information.

[0741] The image information may be information about the objects captured in the image. Such a camera sensor 2000 may include an image sensor and an image processing module.

[0742] The camera sensor 2000 can process still images or moving images obtained by an image sensor (for example, CMOS or CCD).

[0743] The image processing module can process the still image or moving image obtained by the image sensor, extract necessary information, and transmit the extracted information to the processor.

[0744] At this time, the camera sensor 2000 may include a stereo camera, but is not limited thereto, so as to improve the measurement accuracy of the object and further ensure information such as the distance between the vehicle 700 and the object.

[0745] Although the above has been described mainly centered on the embodiments, these are merely examples and do not limit the present invention. Those having ordinary knowledge in the field to which the present invention pertains will be able to understand that various changes and applications not exemplified above are possible without departing from the essential characteristics of the present embodiment. For example, each component specifically shown in the embodiment can be implemented with modifications. Also, differences regarding such modifications and applications should be construed as being included in the scope of the present invention defined by the appended claims.

Claims

1. A housing, a first lens assembly and a second lens assembly that move in the optical axis direction with respect to the housing, a first driving unit that moves the first lens assembly, a second driving unit that moves the second lens assembly, and a first yoke disposed so as to overlap in a direction perpendicular to the optical axis direction of the first driving unit, wherein the first yoke includes a first region and a second region having a different thickness from the first region, and is a camera actuator.

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 in the optical axis direction, the length of the second region is smaller than the length of the first region.

4. 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 that are sequentially arranged along the optical axis direction, and is the camera actuator according to claim 1.

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

6. The camera actuator according to claim 4, wherein when the first magnet moves maximally in the direction opposite to the optical axis direction, the first pole region of the first magnet is arranged to overlap the second region.

7. The camera actuator according to claim 4, wherein when the first magnet moves maximally in the direction opposite to the optical axis direction, the length of the second region is greater than the length of the 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 the direction opposite to the optical axis direction, the length of the second region is smaller than the sum of the length of the 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 pole 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 first yoke includes a boundary region between the first region and the second region. The camera actuator according to claim 4, wherein when the first magnet moves maximally in the direction opposite to the optical axis direction, the boundary region overlaps with the neutral region.

12. Further comprising a second yoke arranged to overlap with the second driving part in a direction perpendicular to the optical axis direction, The camera actuator according to claim 1, wherein a first region of the second yoke has a different thickness from a 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 arranged in sequence along the optical axis direction.

14. The camera actuator according to claim 1, wherein the second region of the first yoke protrudes outside or inside the first region.

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

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

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 the second region of the first yoke is at least partially displaced from the second region of the second yoke.

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

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

21. A housing, A first lens assembly and a second lens assembly arranged in the housing, A first driving part for moving the first lens assembly in the optical axis direction, Including a first yoke arranged to overlap with the first driving part in a direction perpendicular to the optical axis direction, The first driving part includes a first magnet, The first magnet includes a first pole region, a second pole region, and a neutral region arranged between the first pole region and the second pole region, The first yoke includes a first region and a second region having a different magnetic strength from the first region. When the first lens assembly moves to the 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, the camera actuator.

22. When the first lens assembly moves to the maximum extent in the direction opposite to the optical axis direction, the boundary region between the first region and the second region overlaps with the neutral region, the camera actuator according to claim 21.

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

24. A housing, A first lens assembly and a second lens assembly that move in the optical axis direction with reference to the housing, A first driving unit that moves the first lens assembly, A second driving unit that moves the second lens assembly, A first yoke arranged to overlap with the first driving unit in a direction perpendicular to the optical axis direction, and The first yoke includes a first region and a second region having a different magnetic strength from the first region, the camera actuator.

Images