Camera actuator and camera module including the same

Abstract

An embodiment of the present disclosure discloses a camera actuator. The camera actuator includes: a housing; a moving member disposed in the housing and including an optical member; a tilt guide unit connected to the moving member in the housing; and a driving unit for rotating the moving member; wherein the driving unit comprises a driving magnet; a drive coil facing the drive magnet; a plate unit on which the drive coil is disposed in the housing; and a posture detection sensor provided on the plate unit. The plate unit includes a first plate side portion and a second plate side portion, the second plate side portion faces the first plate side portion and is provided with a posture detection sensor, and the thickness of the second plate side portion is greater than that of the first plate side portion.

Description

Technical Field

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

[0002] A camera is a device for taking pictures or videos of an object, and is mounted on a mobile device, a drone, a vehicle, etc. A camera module may have: an image stabilization (IS) function for correcting or preventing image blurring caused by user movement to improve the quality of an image; an autofocus (AF) function for aligning the focal length of a lens by automatically adjusting the distance between an image sensor and the lens; and a zoom function for capturing a distant object by increasing or decreasing the magnification of the distant object with a zoom lens.

[0003] However, when an impact is applied to a miniaturized camera module, the accuracy of detecting the attitude is reduced. In addition, there is an increasing demand for improving the reliability against an impact. Summary of the Invention

[0004] Technical Problem

[0005] The present disclosure aims to provide a camera actuator and a camera device in which the board material and structure are changed to improve the reliability of an attitude detection sensor against an impact in a camera module including two actuators.

[0006] In addition, the present disclosure aims to provide a camera actuator and a camera device in which the reliability is improved by easily reducing the heat generated from a drive coil.

[0007] In addition, the present disclosure aims to provide a camera actuator and a camera device in which the reliability is improved by protecting circuit elements, etc. from the inflow of foreign substances.

[0008] In addition, the present disclosure aims to provide a camera actuator and a camera device in which an element mounting space is easily ensured, and the strength is improved due to an increased bonding area for connection.

[0009] The present disclosure aims to provide a camera actuator applicable to an ultra-thin, ultra-small, and high-resolution camera.

[0010] The object of each embodiment is not limited thereto, and may also include an object or an effect that can be recognized from the configurations or embodiments to be described below.

[0011] Technical Solution

[0012] A camera actuator according to an embodiment of the present disclosure includes: a housing; a moving member disposed in the housing and including an optical member; an inclined guiding unit connected to the moving member in the housing; and a driving unit configured to rotate the moving member; wherein the driving unit includes: a driving magnet; a driving coil facing the driving magnet; a plate unit on which the driving coil is disposed in the housing; and an attitude detection sensor disposed on the plate unit, and the thickness of the plate unit is different to correspond to the attitude detection sensor.

[0013] The plate unit may include a first plate side portion, a second plate side portion facing the first plate side portion, and a third plate side portion disposed between the first plate side portion and the second plate side portion.

[0014] The plate unit may include a first layer, a second layer disposed inside the first layer, and a third layer disposed outside the first layer.

[0015] The second layer may be disposed inside the first plate side portion and the second plate side portion.

[0016] The first layer may be disposed on the first plate side portion to the third plate side portion.

[0017] The second layer and the third layer may be disposed on at least one of the first plate side portion and the second plate side portion.

[0018] The attitude detection sensor may be disposed on the second plate side portion, and the second layer and the third layer may be disposed on the second plate side portion.

[0019] The attitude detection sensor may be disposed outside the first layer on the second plate side portion, and the driving coil may be disposed inside the first layer on the second plate side portion.

[0020] The second layer may be disposed on the second plate side portion to correspond to the attitude detection sensor, and the third layer may be disposed on the second plate side portion to correspond to the driving coil.

[0021] The second layer may overlap the attitude detection sensor and the driving coil in the horizontal direction, the third layer may overlap the attitude detection sensor and the driving coil in the horizontal direction, and the horizontal direction may correspond to the direction from the first plate side portion toward the second plate side portion.

[0022] The second layer may overlap the attitude detection sensor, and at least a part thereof may not overlap the driving coil on the second plate side portion, and the third layer may overlap the driving coil, and at least a part thereof may not overlap the attitude detection sensor on the second plate side portion.

[0023] At least some portions of the attitude detection sensor and the drive coil may overlap each other in the horizontal direction.

[0024] At least some portions of the second layer and the third layer may overlap each other in the horizontal direction.

[0025] The first board side portion and the second board side portion may have different lengths.

[0026] The first layer may be exposed at an end of either the first board side portion or the second board side portion.

[0027] The first layer may be exposed at an end of the first board side portion, and the exposed area of the first layer on the first board side portion may be set to be spaced apart from the second layer.

[0028] The board unit may include connection terminals provided on the first board side portion corresponding to the exposed area of the first layer.

[0029] The third board side portion may not overlap with the second layer and the third layer in the vertical direction, and the vertical direction may correspond to the direction from the third board side portion toward the moving member.

[0030] Advantageous Effects

[0031] According to an embodiment of the present disclosure, a camera actuator and / or a camera device can be implemented, in which the board material and / or structure are changed to improve the impact reliability of an attitude detection sensor in a camera module including two actuators.

[0032] In addition, according to the present disclosure, a camera actuator and a camera device can be implemented, in which the reliability is improved by easily reducing the heat generated from the drive coil.

[0033] In addition, according to the present disclosure, a camera actuator and a camera device can be implemented, in which the reliability is improved by protecting circuit elements and the like from the inflow of foreign substances.

[0034] In addition, the present disclosure can provide a camera actuator and a camera device in which an element mounting space is easily ensured, and the strength is improved due to an increased bonding area for connection.

[0035] According to the present disclosure, a camera actuator applicable to a thin, ultra-small, and high-resolution camera can be implemented.

[0036] Various advantageous advantages and effects of the present disclosure are not limited to the above, and will be more easily understood in the process of describing the above specific embodiments of the present disclosure. Brief Description of the Drawings

[0037] Figure 1Is a perspective view of a camera module according to an embodiment.

[0038] Figure 2 Is an exploded perspective view of a camera module according to an embodiment;

[0039] Figure 3 Is along Figure 1 View of the camera module along line A-A' in

[0040] Figure 4 Is a perspective view of a first camera actuator according to an embodiment;

[0041] Figure 5 Is an exploded perspective view of a first camera actuator according to an embodiment;

[0042] Figure 6a Is a perspective view of a first housing of a first camera actuator according to an embodiment;

[0043] Figure 6b Is a perspective view of the first housing of the first camera actuator in a direction different from Figure 6a ;

[0044] Figure 6c Is a front view of a first housing of a first camera actuator according to an embodiment;

[0045] Figure 6d Is a rear view of a first housing of a first camera actuator according to an embodiment;

[0046] Figure 6e Is a top view of a first housing of a first camera actuator according to an embodiment;

[0047] Figure 7 Is a perspective view of an optical member of a first camera actuator according to an embodiment;

[0048] Figure 8a Is a perspective view of a retainer of a first camera actuator according to an embodiment;

[0049] Figure 8b Is a bottom view of a retainer of a first camera actuator according to an embodiment;

[0050] Figure 8c Is a front view of a retainer of a first camera actuator according to an embodiment;

[0051] Figure 8d Is a rear view of a second member of a first camera actuator according to an embodiment;

[0052] Figure 8e Is a bottom view of a second member of a first camera actuator according to an embodiment;

[0053] Figure 9a is a perspective view of an inclination guiding unit of a first camera actuator according to an embodiment;

[0054] Figure 9b is a perspective view of the inclination guiding unit of the first camera actuator in a direction different from Figure 9a ;

[0055] Figure 9c is a view of the inclination guiding unit of the first camera actuator along line F-F’ in Figure 9a ;

[0056] Figure 10a is a view showing a first driving unit of a first camera actuator according to an embodiment;

[0057] Figure 10b is a perspective view of a driving coil and a first plate portion in a first camera actuator according to an embodiment;

[0058] Figure 10c is another perspective view of a driving coil and a first plate portion in a first camera actuator according to an embodiment;

[0059] Figure 10d is a front view of a driving coil and a first plate portion in a first camera actuator according to an embodiment;

[0060] Figure 10e is a plan view of a driving coil and a first plate portion in a first camera actuator according to an embodiment;

[0061] Figure 10f is a developed plan view of a driving coil and a first plate portion in a first camera actuator according to an embodiment;

[0062] Figure 10g is a developed bottom view of a driving coil and a first plate portion in a first camera actuator according to an embodiment;

[0063] Figure 10h is a view for describing Figure 10f the connection between coils in;

[0064] Figure 10i is a cross-sectional view of a first plate portion in a first camera actuator according to an embodiment;

[0065] Figure 10j and Figure 10k are views for describing the effects of a driving coil and a first plate portion in a first camera actuator according to an embodiment;

[0066] Figure 10lFront view of the drive coil and the first plate portion in the first camera actuator according to another embodiment;

[0067] Figure 10m Cross-sectional view of the first plate portion in the first camera actuator according to another embodiment;

[0068] Figure 10n Front view of the drive coil and the first plate portion in the first camera actuator according to yet another embodiment;

[0069] Figure 10o Cross-sectional view of the first plate portion in the first camera actuator according to yet another embodiment;

[0070] Figure 10p Front view of the drive coil and the first plate portion in the first camera actuator according to still another embodiment;

[0071] Figure 10q Cross-sectional view of the first plate portion in the first camera actuator according to still another embodiment;

[0072] Figure 11a Perspective view of the first camera actuator according to an embodiment;

[0073] Figure 11b Is along Figure 11a View of the first camera actuator along line P-P' in;

[0074] Figure 11c Is along Figure 11a View of the first camera actuator along line Q-Q' in;

[0075] Figure 12a Perspective view of the first camera actuator according to an embodiment;

[0076] Figure 12b Is along Figure 12a View of the first camera actuator along line S-S' in;

[0077] Figure 12c Shows Figure 12b Exemplary view of the movement of the first camera actuator shown in;

[0078] Figure 13a Is along Figure 12a View of the first camera actuator along line R-R' in;

[0079] Figure 13b Is Figure 13a Exemplary view of the movement of the first camera actuator shown in;

[0080] Figure 14Is a perspective view of a second camera actuator according to an embodiment;

[0081] Figure 15 Is an exploded perspective view of a second camera actuator according to an embodiment;

[0082] Figure 16 Is along Figure 14 View of the second camera actuator along line D-D' in;

[0083] Figure 17a 、 Figure 17b And Figure 17c Is a perspective view of a second housing in a second camera actuator according to an embodiment;

[0084] Figure 18 And Figure 19 Is a view for describing each drive of a lens assembly according to an embodiment.

[0085] Figure 20 Is a view for describing the drive of a second camera actuator according to an embodiment;

[0086] Figure 21 Is a schematic diagram showing a circuit board according to an embodiment;

[0087] Figure 22 Is a perspective view of a first lens assembly, a first engagement member, a second engagement member, and a second lens assembly according to an embodiment;

[0088] Figure 23 Is a perspective view of a mobile terminal to which a camera module according to an embodiment is applied; and

[0089] Figure 24 Is a perspective view of a vehicle to which a camera module according to an embodiment is applied. Detailed Description of the Embodiment

[0090] Since the present disclosure may have various changes and various embodiments, specific embodiments are illustrated and described in the drawings. However, it should be understood that the present disclosure is not intended to limit the specific embodiments, and the present disclosure should be understood to include all modifications, equivalents, and alternatives included in the spirit and scope of the present disclosure.

[0091] Terms including ordinal numbers such as second or first may be used to describe various components, but these components are not limited by the terms. The terms are only for the purpose of distinguishing one component from another. For example, without departing from the scope of the present disclosure, a second component may be referred to as a first component, and similarly, a first component may also be referred to as a second component. The term "and / or" includes combinations of multiple related listed items or any one of multiple related listed items.

[0092] When a component is described as being "connected" or "coupled" to another component, it should be understood that the component can be directly connected or coupled to the other component, or other components can also be provided between the component and the other component. On the other hand, when a component is described as being "directly connected" or "directly coupled" to another component, it should be understood that there are no other components between the component and the other component.

[0093] The terms used in this application are only for describing specific embodiments and are not intended to limit the present disclosure. Unless otherwise clearly specified in the context, singular expressions include plural expressions. In this application, it should be understood that terms such as "including" or "having" are intended to indicate the presence of the features, numbers, steps, operations, components, parts, or combinations thereof described in this specification, but do not exclude the possibility of the presence or addition of one or more other features, numbers, steps, operations, components, parts, or combinations thereof.

[0094] Unless otherwise defined, all terms, including technical terms or scientific terms, used herein have the same meaning as commonly understood by those of ordinary skill in the art to which the present disclosure pertains. Terms such as those defined in commonly used dictionaries should be interpreted as having a meaning consistent with the meaning in the context of the relevant field, and should not be interpreted in an ideal or overly formalized meaning unless clearly defined in this application.

[0095] Hereinafter, each embodiment will be described in detail with reference to the drawings, and regardless of the reference numerals, the same or corresponding components are given the same reference numerals, and the overlapping description of the same or corresponding components will be omitted.

[0096] Figure 1 is a perspective view of a camera module according to an embodiment, Figure 2 is an exploded perspective view of the camera module according to an embodiment, and Figure 3 is along Figure 1 the sectional view taken along line A - A' in

[0097] Hereinafter, the view along the line corresponds to the view along the corresponding cutting surface.

[0098] Referring to Figure 1 and Figure 2, according to an embodiment, the camera module 1000 may include a cover CV, a first camera actuator 1100, a second camera actuator 1200, and a circuit board 1300. Herein, the first camera actuator 1100 may be used interchangeably with the "first actuator", and the second camera actuator 1200 may be used interchangeably with the "second actuator". In addition, the camera actuator may be used interchangeably with the "actuator", "lens transfer device", "lens moving device", "lens driving device", etc. Further, the camera module may be used interchangeably with a camera device, an optical device, a mobile phone, etc.

[0099] The cover CV may cover the first camera actuator 1100 and the second camera actuator 1200. The coupling strength between the first camera actuator 1100 and the second camera actuator 1200 may be increased by the cover CV.

[0100] In addition, the cover CV may be made of a material that blocks electromagnetic waves. Accordingly, the first camera actuator 1100 and the second camera actuator 1200 in the cover CV may be easily protected.

[0101] Additionally, the first camera actuator 1100 may be an optical image stabilizer (OIS) actuator. For example, the first camera actuator 1100 may move an optical member in a direction perpendicular to the optical axis (the axis of incident light).

[0102] The first camera actuator 1100 may include a fixed focal length lens disposed in a predetermined lens barrel (not shown). The fixed focal length lens may also be referred to as a "single focal length lens" or a "single lens".

[0103] The first camera actuator 1100 may change the optical path. In an embodiment, the first camera actuator 1100 may vertically change the optical path through an internal optical member (e.g., a prism or a mirror). For example, the optical member may change light from a first direction (X-axis direction) to a third direction (Z-axis direction). Alternatively, the optical member may change light from a first axis to a second axis. With this configuration, even when the thickness of the mobile terminal is reduced, a lens having a focal length greater than the thickness of the mobile terminal is disposed in the mobile terminal through the change of the optical path, so that zooming, autofocus (AF), zooming, and OIS functions may be performed.

[0104] However, the present disclosure is not limited thereto, and the first camera actuator 1100 may vertically or repeatedly change the optical path at a predetermined angle.

[0105] The second camera actuator 1200 may be disposed at the rear end portion of the first camera actuator 1100. The second camera actuator 1200 may be coupled to the first camera actuator 1100. In addition, the mutual coupling may be performed by various methods.

[0106] In addition, the second camera actuator 1200 may be a zoom actuator or an AF actuator. For example, the second camera actuator 1200 may support one or more lenses and perform an AF function or a zoom function by moving the lenses according to a predetermined control signal of the control section.

[0107] In addition, one lens or a plurality of lenses may move independently or separately in the optical axis direction.

[0108] The circuit board 1300 may be disposed at the rear end portion of the second camera actuator 1200. The circuit board 1300 may be electrically connected to the second camera actuator 1200 and the first camera actuator 1100. In addition, a plurality of circuit boards 1300 may be provided.

[0109] The camera module according to an embodiment may include one or more camera modules. For example, the plurality of camera modules may include a first camera module and a second camera module.

[0110] In addition, 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.

[0111] In addition, the second camera module may include an actuator (not shown) disposed in a predetermined housing (not shown) and capable of driving a lens unit. The actuator may be a voice coil motor, a micro actuator, a silicon actuator, etc. and may be applied by various methods such as an electrostatic method, a thermal method, a piezoelectric method, and an electrostatic force method, but the present disclosure is not limited thereto. In addition, in the specification, the camera actuator may be referred to as an "actuator" or the like. In addition, the camera module including a plurality of camera modules may be mounted in various electronic devices such as a mobile terminal. In addition, the actuator may be a device for moving or tilting a lens or an optical member. However, hereinafter, the actuator will be described as including a lens or an optical member. In addition, the actuator may be referred to as a "lens transfer device", a "lens moving device", an "optical member transfer device", an "optical member moving device", etc.

[0112] Referring to Figure 3 , the camera module according to an embodiment may include the first camera actuator 1100 for performing an OIS function and the second camera actuator 1200 for performing a zoom function and an AF function.

[0113] Light can enter the camera module or the first camera actuator through an opening area positioned in the upper surface of the first camera actuator 1100. That is, light can enter the first camera actuator 1100 in the optical axis direction (e.g., the X-axis direction based on the incident light), and the optical path can be changed by an optical member (e.g., changed from the X-axis direction to the Z-axis direction). Additionally, light can pass through the second camera actuator 1200 and can be incident on the image sensor IS positioned at one end of the second camera actuator 1200 (path). In this specification, the Z-axis direction or the third direction will be described as the optical axis direction as follows.

[0114] In this specification, the lower surface refers to one side in the first direction. Additionally, the first direction is the X-axis direction in the drawings and can be used interchangeably with the second axis direction, etc. The second direction is the Y-axis direction in the drawings and can be used interchangeably with the first axis direction, etc. The second direction is a direction perpendicular to the first direction. Additionally, the third direction is the Z-axis direction in the drawings and can be used interchangeably with the third axis direction, etc. Additionally, the third direction is perpendicular to both the first direction and the second direction. Here, the third direction (Z-axis direction) corresponds to the optical axis direction, and the first direction (X-axis direction) and the second direction (Y-axis direction) are directions perpendicular to the optical axis. Additionally, hereinafter, the optical axis direction is the third direction (Z-axis direction) in the description of the second camera actuator 1200, and the following will be described based on the above description.

[0115] Additionally, in this specification, the inner side can be the direction from the cover (CV) toward the first camera actuator, and the outer side can be the opposite direction of the inner side. That is, the first camera actuator and the second camera actuator can be positioned inside the cover CV, and the cover CV can be positioned outside the first camera actuator or the second camera actuator.

[0116] Additionally, with this configuration, the camera module according to an embodiment can reduce the space limitation on the first camera actuator and the second camera actuator by changing the optical path. That is, in response to the change of the optical path, the camera module according to an embodiment can extend the optical path while minimizing the thickness of the camera module. Furthermore, it should be understood that the second camera actuator can provide a high magnification by controlling the focus, etc. in the extended optical path.

[0117] Additionally, the camera module according to an embodiment can achieve OIS by controlling the optical path with the first camera actuator, thereby minimizing the occurrence of eccentricity or tilt phenomena and providing the best optical characteristics.

[0118] In addition, the second camera actuator 1200 may include an optical system and a lens driving unit. For example, at least one of a first lens assembly, a second lens assembly, and a third lens assembly may be provided in the second camera actuator 1200.

[0119] In addition, the second camera actuator 1200 may include a coil and a magnet and perform a high magnification zoom function and an autofocus function.

[0120] For example, the first lens assembly and the second lens assembly may be movable lenses that move through a coil, a magnet, and a guide pin respectively, and the third lens assembly may be a fixed lens, but the present disclosure is not limited thereto. For example, the third lens assembly may perform the function of a focusing device through which light forms an image at a specific position, and the first lens assembly may perform the function of a converter for reforming the image formed by the third lens assembly serving as the focusing device at another position. Meanwhile, since the distance to the object or the image distance varies significantly, the first lens assembly may be in a state of large magnification change, and the first lens assembly serving as the converter may play an important role in terms of the change in the focal length or magnification of the optical system. Meanwhile, the imaging point of the image formed by the first lens assembly serving as the converter may be slightly different depending on the position. Therefore, the second lens assembly may perform a position compensation function for the image formed by the converter. For example, the second lens assembly may perform the function of a compensator for accurately forming an image at the actual position of the image sensor using the imaging point of the image formed by the first lens assembly serving as the converter. For example, the first lens assembly and the second lens assembly may be driven by the electromagnetic force generated by the interaction between the coil and the magnet. The above description may be applied to the lens assemblies to be described below. In addition, the first lens assembly to the third lens assembly may move in the optical axis direction, that is, in the third direction. In addition, the first lens assembly to the third lens assembly may move independently or in relation to each other in the third direction. In the present disclosure, the first lens assembly and the second lens assembly may move in the optical axis direction. In addition, the third lens assembly may be positioned at the front end of the first lens assembly or at the rear end of the second lens assembly. In addition, the third lens assembly may not move in the optical axis direction. That is, the third lens assembly may be a fixed unit. In addition, the first lens assembly and the second lens assembly may be movable units.

[0121] Meanwhile, when the OIS actuator and the AF / zoom actuator are arranged according to an embodiment of the present disclosure, magnetic field interference with the AF / zoom magnet can be prevented when the OIS is driven. Since the first driving magnet of the first camera actuator 1100 is arranged in a manner separated from the second camera actuator 1200, magnetic field interference between the first camera actuator 1100 and the second camera actuator 1200 can be prevented. In this specification, OIS may be used interchangeably with terms such as hand shake correction, optical image stabilizer, optical image correction, shake correction, etc.

[0122] Figure 4 is an exploded perspective view of a first camera actuator according to an embodiment, and Figure 5 is an exploded perspective view of a first camera actuator according to an embodiment.

[0123] Referring to Figure 4 and Figure 5 According to an embodiment, the first camera actuator 1100 may include a first housing 1120, a moving member 1130, a rotating unit 1140, a first driving unit 1150, a first member 1126, and a second member 1131a. In addition, the first camera actuator 1100 may further include a board CP.

[0124] The moving member 1130 may include a holder 1131 and an optical member 1132 seated on the holder 1131. In addition, the rotating unit 1140 may include an inclination guiding portion 1141 and a second magnetic portion 1142 and a first magnetic portion 1143 having the same or different polarities to press the inclination guiding portion 1141. For example, the first magnetic portion 1143 and the second magnetic portion 1142 may have facing surfaces with the same polarity. In addition, the first driving unit 1150 includes a driving magnet 1151, a driving coil 1152, a Hall sensor 1153, a first plate portion 1154, and a yoke portion 1155.

[0125] First, the first camera actuator 1100 may include a shielding cover (not shown). The shielding cover (not shown) may be positioned on the outermost side of the first camera actuator 1100 to surround the rotating unit 1140 and the first driving unit 1150 described below.

[0126] The shielding cover (not shown) may block or reduce electromagnetic waves generated from the outside. That is, the shielding cover (not shown) may reduce the occurrence of failures in the rotating unit 1140 or the first driving unit 1150.

[0127] The first housing 1120 may be positioned inside the shielding cover (not shown). When there is no shielding cover, the first housing 1120 may be positioned on the outermost side of the first camera actuator.

[0128] In addition, the first housing 1120 may be positioned inside the first plate portion 1154 to be described below. The first housing 1120 may be fastened by being fitted into or engaged with a shielding case (not shown).

[0129] The first housing 1120 may include a first housing side portion 1121, a second housing side portion 1122, a third housing side portion 1123, and a fourth housing side portion 1124. A detailed description thereof will be given below.

[0130] The first member 1126 may be provided in the first housing 1120. The second member 1131a may pass through some regions of the first member 1126. The first member 1126 may be provided in the housing. The first member 1126 may be a structure integrally formed with or separated from the first housing 1120.

[0131] In addition, the first camera actuator 1100 may further include a plate CP provided outside the first member 1126. The plate CP may prevent foreign matter from flowing into the second member 1131a through the first member 1126 or the like. In addition, the plate CP may be formed of a magnetic material. Therefore, since the plate CP has magnetism, the first magnetic portion 1143 and the second magnetic portion 1142 having polarities for pressing may not generate a magnetic force. That is, the generation of a magnetic force that interferes with the driving (pressing) of the first magnetic portion 1143 and the second magnetic portion 1142 may be reduced.

[0132] When the plate CP is a magnetic portion, the plate CP may be referred to as a magnetic member, a magnetic portion, a cover plate, a metal member, a metal plate, or the like.

[0133] The moving member 1130 includes a holder 1131 and an optical member 1132 seated on the holder 1131.

[0134] The holder 1131 may 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 respectively correspond to or face the inner surface of the first housing side portion 1121, the inner surface of the second housing side portion 1122, the inner surface of the third housing side portion 1123, and the inner surface of the first member 1126.

[0135] In addition, the retainer 1131 may include a second member 1131a disposed in the fourth seating groove. The second member 1131a may be coupled to the retainer 1131 by passing through the first member 1126. The second member 1131a and the retainer 1131 may be coupled by any of various engaging members or coupling members. A detailed description thereof will be given below.

[0136] The optical member 1132 may be seated on the retainer 1131. To this end, the retainer 1131 may have a seating surface, and the seating surface may be formed by an accommodation groove. In an embodiment, the optical member 1132 may be formed of a mirror or a prism. Hereinafter, the optical member 1132 is illustrated as a prism, but may also be formed of a plurality of lenses as in the above-described embodiment. Alternatively, the optical member 1132 may include a plurality of lenses and prisms or mirrors. In addition, the optical member 1132 may include a reflector disposed therein. However, the present disclosure is not limited thereto.

[0137] In addition, the optical member 1132 may reflect light reflected from the outside (e.g., an object) into the camera module. That is, the optical member 1132 may reduce the spatial limitation on the first camera actuator and the second camera actuator by changing the path of the reflected light. Therefore, it should be understood that the camera module may provide a wide range of magnifications by extending the optical path while minimizing the thickness of the camera module.

[0138] Additionally, the second member 1131a may be coupled to the retainer 1131. The second member 1131a may be disposed outside the retainer 1131 and inside the housing. In addition, the second member 1131a may be seated in an additional groove located in an area of the retainer 1131 other than the fourth seating groove located on the outer surface of the fourth retainer. Therefore, the second member 1131a may be coupled to the retainer 1131, and at least a portion of the first member 1126 may be positioned between the second member 1131a and the retainer 1131. For example, at least a portion of the first member 1126 may be disposed in a space formed between the second member 1131a and the retainer 1131. In addition, as described above, the second member 1131a may pass through holes (a first through hole and a second through hole described below) formed in the first member 1126.

[0139] In addition, the second member 1131a may have a structure separated from the retainer 1131. With this configuration, as will be described below, the first camera actuator can be easily assembled. Alternatively, the second member 1131a may be integrally formed with the retainer 1131, but will be described as a separated structure below.

[0140] The rotation unit 1140 includes an inclined guide portion 1141, and a second magnetic portion 1142 and a first magnetic portion 1143 having the same polarity to press the inclined guide portion 1141.

[0141] The inclined guide portion 1141 may be coupled to the moving member 1130 and the first housing 1120. Specifically, the inclined guide portion 1141 may be disposed between the retainer 1131 and the first member 1126. Thus, the inclined guide portion 1141 may be coupled to the moving member 1130 of the retainer 1131 and the first housing 1120. However, different from the above description, in an embodiment, the inclined guide portion 1141 may be disposed between the first member 1126 and the retainer 1131. Specifically, the inclined guide portion 1141 may be positioned between the first member 1126 and the fourth seating groove of the retainer 1131. For example, at least a portion of the inclined guide portion 1141 may be positioned in the fourth seating groove.

[0142] The second member 1131a, the first member 1126, the inclined guide portion 1141, and the retainer 1131 may be arranged in sequence in the third direction (Z-axis direction). In addition, the second magnetic portion 1142 and the first magnetic portion 1143 may be seated in the first groove gr1 formed in the second member 1131a and the second groove gr2 formed in the first member 1126, respectively. In an embodiment, the first groove gr1 and the second groove gr2 may have positions different from the first groove and the second groove described above in other embodiments. However, the first groove gr1 is positioned in the second member 1131a and moves integrally with the retainer and the second member 1131a, and the second groove gr2 is positioned on the first member 1126 to correspond to the first groove gr1 and is coupled to the first housing 1120. Therefore, these terms will be used interchangeably. In addition, the first groove and the second groove may be the grooves as described above. Alternatively, the first groove and the second groove may also be in the form of holes.

[0143] In addition, the inclined guide portion 1141 may be disposed adjacent to the optical axis. Thus, the actuator according to the embodiment can easily change the optical path according to the inclination of the first axis and the second axis to be described below.

[0144] The inclined guide portion 1141 may include a first protrusion disposed to be spaced apart from each other in the first direction (X-axis direction) and a second protrusion disposed to be spaced apart from each other in the second direction (Y-axis direction). In addition, the first protrusion and the second protrusion may protrude in opposite directions. A detailed description thereof will be given below.

[0145] In addition, as described above, the second magnetic portion 1142 may be positioned in the second member 1131a. In addition, the first magnetic portion 1143 may be positioned in the first member 1126.

[0146] The second magnetic portion 1142 and the first magnetic portion 1143 may have the same polarity. For example, the second magnetic portion 1142 may be a magnet having an N pole, and the first magnetic portion 1143 may be a magnet having an N pole. Alternatively, the second magnetic portion 1142 may be a magnet having an S pole, and the first magnetic portion 1143 may be a magnet having an S pole. For example, as described above, the first pole surface of the first magnetic portion 1143 and the second pole surface of the second magnetic portion 1142 facing the first pole surface may have the same polarity.

[0147] Due to the above polarity, the second magnetic portion 1142 and the first magnetic portion 1143 may generate a repulsive force therebetween. With this configuration, the above repulsive force may be applied to the second member 1131a or the holder 1131 coupled to the second magnetic portion 1142 and the first member 1126 or the first housing 1120 coupled to the first magnetic portion 1143. In this case, the repulsive force applied to the second member 1131a may be transmitted to the holder 1131 coupled to the second member 1131a. Therefore, the inclined guide portion 1141 provided between the second member 1131a and the first member 1126 may be pressed by the repulsive force. In addition, the repulsive force may also be transmitted to the housing and the moving member. Therefore, the housing and the moving member may be pressed by the repulsive force. That is, the repulsive force may correspond to the holding force for holding the position between the housing and the moving member. That is, the repulsive force may hold the position of the inclined guide portion 1141 between the holder 1131 and the first housing 1120 (or the first member 1126). With this configuration, even during X-axis inclination or Y-axis inclination, the position between the moving member 1130 and the first housing 1120 may be maintained. In addition, the inclined guide portion may be in close contact with the first member 1126 and the holder 1131 due to the repulsive force between the first magnetic portion 1143 and the second magnetic portion 1142. That is, the repulsive force generated by the first magnetic portion 1143 and the second magnetic portion 1142 may be the holding force for the position between the holder 1131 and the first housing 1120.

[0148] The first driving unit 1150 includes a driving magnet 1151, a driving coil 1152, a Hall sensor 1153, a first plate portion 1154, and a yoke portion 1155. A description thereof will be given below. In addition, the yoke portion 1155 may be referred to as the "first yoke portion" in the first camera actuator. In addition, the yoke portion in the second camera actuator may be referred to as the "second yoke portion".

[0149] Figure 6a is a perspective view of a first housing of a first camera actuator according to an embodiment, Figure 6b is a perspective view of the first housing of the first camera actuator in a direction Figure 6a different from that, Figure 6c is a front view of the first housing of the first camera actuator according to an embodiment, Figure 6d is a rear view of the first housing of the first camera actuator according to an embodiment, and Figure 6e is a top view of the first housing of the first camera actuator according to an embodiment.

[0150] Referring to Figures 6a to 6e , the first housing 1120 according to an embodiment may include a first housing side portion 1121 to a third housing side portion 1123. Additionally, the first member 1126 may be integrally formed by being coupled to the first housing 1120. Thus, the first member 1126 may be a component included in the first housing 1120. Alternatively, the first housing 1120 may include the first member 1126.

[0151] The first housing side portion 1121 and the second housing side portion 1122 may be arranged to face each other. Additionally, the first member 1216a and the housing wall portion 1124 may be arranged to face each other. Furthermore, the housing wall portion 1124 may also be similarly applied to the structure of a camera actuator in which no first member and second member exist. That is, even in a structure in which a moving member is inclined within a housing, the fixed housing may include a housing wall portion.

[0152] Additionally, the third housing side portion 1123 may be disposed between the first housing side portion 1121 and the second housing side portion 1122.

[0153] The third housing side portion 1123 may be in contact with the first housing side portion 1121 and the second housing side portion 1122. Additionally, the third housing side portion 1123 may be the lower surface of the first housing 1120. Additionally, the above-described content may also be applied in the same manner to the description of directions.

[0154] Additionally, the first housing side portion 1121 may include a first housing hole 1121a. The first coil to be described below may be positioned in the first housing hole 1121a.

[0155] Additionally, the second housing side portion 1122 may include a second housing hole 1122a. Additionally, the second coil 1152b to be described below may be positioned in the second housing hole 1122a.

[0156] Additionally, the first housing side portion 1121 and the second housing side portion 1122 may be the side surfaces of the first housing 1120.

[0157] The first coil and the second coil may be coupled to the first plate portion. In an embodiment, the first coil and the second coil may be electrically connected to the first plate portion such that current can flow through the first plate portion. The current is an element of the electromagnetic force that can cause the second camera actuator to tilt with respect to the X-axis.

[0158] In addition, the third housing side portion 1123 may include a third housing hole 1123a.

[0159] The third coil to be described below may be positioned in the third housing hole 1123a. In addition, the third coil 1152c may be electrically connected to the first plate portion in contact with the first housing 1120, and the third coil 1152c and the first plate portion may be coupled. Accordingly, the third coil may be electrically connected to the first plate portion to receive current from the first plate portion. The current is an element of the electromagnetic force that can cause the second camera actuator to tilt with respect to the Y-axis.

[0160] The first member 1126 may be seated between the first housing side portion 1121 and the third housing side portion 1123. Accordingly, the first member 1126 may be positioned on the third housing side portion 1123. For example, the first member 1126 may be positioned at one side of the third housing side portion 1123. The first member 1126 and the retainer may be positioned in order along the third direction.

[0161] In addition, the first housing 1120 may include a receiving portion 1125 formed by the first housing side portion 1121 to the third housing side portion 1123. The first member 1126, the second member 1131a, and the moving member 1130 may be positioned as components in the receiving portion 1125. The moving member, the tilt guiding portion, etc. may be positioned in the receiving portion 1125.

[0162] In addition, the first housing 1120 may further include a housing wall portion 1124 facing the first member 1126. In addition, the housing wall portion 1124 may be provided 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.

[0163] In addition, the housing wall portion 1124 may be positioned at the end portions of the first housing side portion 1121 and the second housing side portion 1122. For example, a plurality of housing wall portions 1124 may be formed. Additionally, the plurality of housing wall portions 1124 may be positioned on each of the first housing side portion 1121 and the second housing side portion 1122. The plurality of housing wall portions 1124 may be spaced apart from each other in the second direction (Y-axis direction). Thus, the light reflected by the optical member 1132 and passing through the separation region may move to the second camera actuator positioned at the rear end portion of the camera module. That is, the separation region provides a path for the movement of light.

[0164] In addition, the housing wall portion 1124 may include protrusions, grooves, etc. for facilitating coupling with another camera actuator (second camera actuator) adjacent to the housing wall portion 1124. With this configuration, while providing an optical path, the coupling strength between the housing wall portion 1124 having an opening for providing the optical path and another component can be increased, thereby suppressing the movement of the opening due to separation or the like to minimize changes in the optical path.

[0165] More specifically, the housing wall portion 1124 may be provided on the side portion corresponding to the emission surface of the optical member. Additionally, the housing wall portion 1124 may be positioned between the first housing side portion 1121 and the second housing side portion 1122 and at the end portions of the first housing side portion 1121 and the second housing side portion 1122 in the optical axis direction. Thus, the housing wall portion 1124 may be positioned at the rear end portion of the accommodation portion 1125 in the optical axis direction. Furthermore, the housing wall portion 1124 may be positioned at the rear end portion of the optical member in the optical axis direction (Z-axis direction).

[0166] In addition, the housing wall portion 1124 may overlap with the holder in the optical axis direction (Z-axis direction). Additionally, at least a portion of the housing wall portion 1124 may overlap with the holder in the optical axis direction. Here, the optical axis direction (Z-axis direction) may correspond to the movement direction of the reflected light. Additionally, the optical axis direction may correspond to the direction perpendicular to the emission surface of the optical member. Thus, for the anti-shake function, even when the moving member, i.e., the holder, is tilted, the amount of movement can be restricted by the housing wall portion 1124. Furthermore, the housing wall portion 1124 and the holder may collide with each other so that no impact occurs in the first member or the second member. Therefore, the reliability of the first member and the second member can be improved.

[0167] In addition, the housing wall portion 1124 may be integrally formed with the first housing 1120. Additionally, a portion of the housing wall portion 1124 may be made of an elastic material. Additionally, an elastic member may be additionally provided on the housing wall portion 1124. Accordingly, the impact applied to the holder 1131 due to the collision between the housing wall portion 1124 and the holder 1131 can be reduced.

[0168] In addition, the housing wall portion 1124 according to an embodiment may include a wall portion 1124a facing (or corresponding to) the rear surface of the holder (or the emission surface of the optical member) and a housing extension portion 1124b extending from the wall portion 1124a to the upper portion of the holder.

[0169] The wall portion 1124a may overlap with the holder in the optical axis direction (Z-axis direction). Additionally, the housing extension portion 1124b may overlap with the holder in a first direction.

[0170] The wall portion 1124a may serve as a stopper for preventing the holder from tilting in a first direction or a second direction. That is, when the holder tilts, the holder and the wall portion 1124a may collide with each other or may come into contact with each other.

[0171] In addition, when the holder moves in a first direction or performs a second axis tilt (e.g., vertical driving), the housing extension portion 1124b may collide with the holder or may come into contact with the holder. That is, the housing extension portion 1124b may serve as a stopper for preventing the holder from moving in a first direction. In addition, the third housing side portion 1123 may also perform a stopper function.

[0172] In addition, as described above, the first member 1126 may be a component coupled to and included in the first housing 1120. For example, the first member 1126 may be a structure integrally formed with or separated from the first housing 1120. Hereinafter, the first member 1126 will be described as a structure separated from the first housing 1120.

[0173] In addition, the first member 1126 may be disposed in the first housing 1120. Alternatively, the first member 1126 may be positioned in the first housing 1120.

[0174] In addition, the first member 1126 may be coupled to the first housing 1120. In an embodiment, the first member 1126 may be positioned between the first housing side portion 1121 and the second housing side portion 1122. Additionally, the first member 1126 may be positioned on the third housing side portion 1123 and coupled to the first housing side portion to the third housing side portion.

[0175] In addition, the first stopper member 1121b may be positioned on the inner surface of the first housing side portion 1121. In addition, the second stopper member 1122b may be positioned on the inner surface of the second housing side portion 1122.

[0176] The first stopper member 1121b and the second stopper member 1122b may be positioned symmetrically with respect to the first direction (X-axis direction). The first stopper member 1121b and the second stopper member 1122b may extend along the first direction (X-axis direction). With this configuration, even when the first member 1126 moves into the first housing 1120, the position of the first member 1126 can be held by the first stopper member 1121b and the second stopper member 1122b. That is, the first stopper member 1121b and the second stopper member 1122b can hold the position of the first member 1126 at one side of the first housing 1120.

[0177] In addition, the first stopper member 1121b and the second stopper member 1122b may fix the position of the first member 1126 to fix the position of the tilt guiding portion between the first member 1126 and the moving member, thereby eliminating error-causing factors such as vibration. Accordingly, the first camera actuator according to the embodiment can accurately perform X-axis tilting and Y-axis tilting.

[0178] In addition, the distance between the first stopper member 1121b and the second stopper member 1122b in the second direction (Y-axis direction) may be smaller than the maximum length of the first member 1126 in the second direction (Y-axis direction). Accordingly, 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. In addition, the retainer may be assembled to the first housing 1120 along the first direction. In addition, as described above, the first member 1126 may be coupled to the first housing 1120 along the side surface of the first housing 1120, i.e., in the optical axis direction. In addition, the second member may be assembled or inserted into the first housing 1120 in the optical axis direction. Accordingly, the second member may pass through the first member 1126. Thereafter, a plate may also be provided on the first member 1126.

[0179] In addition, the first member 1126 includes a second protrusion groove PH2 in which the second protrusion of the inclined guide portion is seated. The second protrusion groove PH2 may be positioned in the inner surface 1126S1 of the first member 1126. As will be described below, the content of the first protrusion groove can be applied to the second protrusion groove PH2 in the same manner. For example, a plurality of second protrusion grooves PH2 may be formed, and the plurality of second protrusion grooves may have a structure having contact points that are the same as or different from the contact points of the second protrusion of the inclined guide portion. For example, the number of the second protrusion grooves PH2 is two, and the second protrusion groove PH2 may have a 4-point or 8-point contact structure. That is, the second protrusion groove PH2 may have a plurality of inclined surfaces. In addition, the second protrusion groove PH2 may also be a hemispherical groove.

[0180] In addition, in the first member 1126, the protrusion (e.g., the second protrusion) of the inclined guide portion is arranged adjacent to the optical member (prism) in the fourth seating groove, so that the protrusion serving as the inclined reference axis is arranged adjacent to the center of gravity of the moving member 1130. Therefore, when the holder is tilted, the torque used to move the moving member 1130 for tilting can be minimized. Therefore, the current consumption used to drive the coil can be minimized, thereby reducing the power consumption of the camera actuator.

[0181] In addition, the first member 1126 may include through holes 1126a and 1126b. A plurality of through holes may be formed, and the plurality of through holes may include a first through hole 1126a and a second through hole 1126b.

[0182] The first extension portion and the second extension portion of the second member, which will be described below, may pass through the first through hole 1126a and the second through hole 1126b, respectively. Therefore, the holding force between the second member and the first member can be generated by the repulsive force between the first magnetic portion and the second magnetic portion. That is, even when the moving member is tilted, the position between the first housing and the moving member can be maintained.

[0183] The second protrusion groove PH2 may be positioned between the first through hole 1126a and the second through hole 1126b. With this configuration, the coupling strength between the inclined guide portion 1141 and the first member 1126 can be increased, thereby preventing a decrease in tilt accuracy caused by the movement of the inclined guide portion 1141 in the first housing.

[0184] In addition, the second groove gr2 may be positioned on the outer surface 1126S2 of the first member 1126. The first magnetic portion may be seated in the second groove gr2. In addition, 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 portion seated on the second member and the first magnetic portion of the first member 1126 may face each other and generate the repulsive force described above. Thus, since the first member 1126 presses the tilt guide portion inward or toward the holder by the repulsive force, the moving member may be spaced apart from the third housing side portion in the first housing by a predetermined distance even when no current is injected into the coil. That is, the holding force for maintaining the positions among the moving member, the housing, and the tilt guide portion may be generated by the first magnetic portion and the second magnetic portion.

[0185] In addition, when the first member 1126 is integrally formed with the first housing 1120, the coupling strength between the first member 1126 and the first housing 1120 may be increased, thereby improving the reliability of the camera actuator. In addition, when the first member 1126 is separately formed from the first housing 1120, the ease of assembly and manufacturing of the first member 1126 and the first housing 1120 may be increased.

[0186] In addition, in an embodiment, the first member 1126 may include the first through hole 1126a and the second through hole 1126b as described above. In addition, the first through hole 1126a and the second through hole 1126b may be arranged side by side in the second direction (Y-axis direction) and may overlap each other.

[0187] In addition, the first member 1126 may include an upper member UA positioned above the first through hole 1126a and the second through hole 1126b and a lower member BA positioned below the first through hole 1126a and the second through hole 1126b. Thus, the first through hole 1126a and the second through hole 1126b may be positioned in the middle of the first member 1126. That is, the first member 1126 may include a connecting member MA positioned at the side portions of the first through hole 1126a and the side portions of the second through hole 1126b. That is, the upper member UA and the lower member BA may be connected by the connecting member MA. In addition, a plurality of lower members BA may be formed to form the first through hole and the second through hole, and the plurality of lower members BA may be spaced apart from each other in the second direction (Y-axis direction).

[0188] Thus, the first member 1126 may have the upper member UA, thereby increasing the stiffness. For example, the stiffness of the first member 1126 may be increased compared to the case where the upper member UA does not exist. For example, in an embodiment, the unit of stiffness may be N / μm. Thus, the reliability of the first camera actuator according to the embodiment may be improved.

[0189] In addition, the first coupling groove 1126k can be positioned in the outer surface 1126S2 of the first member 1126. The first coupling groove 1126k can be positioned at the edge of the outer surface 1126S2 of the first member 1126. In particular, the first coupling groove 1126k can be positioned at the ends (e.g., the left side and the right side) of the outer surface 1126S2 of the first member 1126 and positioned adjacent to the first housing side portion 1121.

[0190] The first coupling groove 1126k can be positioned to correspond to the second coupling groove 1121m of the first housing side portion 1121 and the second coupling groove 1122m of the second housing side portion 1122. In an embodiment, the first coupling groove 1126k can be positioned to correspond to (or face) the second coupling groove 1121m of the first housing side portion 1121 and the second coupling groove 1122m of the second housing side portion 1122. The second coupling grooves 1121m and 1122m can be adjacent to the outer surface 1126S2 of the first member 1126 and positioned on the same side surface.

[0191] In an embodiment, a plurality of first coupling grooves 1126k and a plurality of second coupling grooves 1121m and 1122m can be formed, and the plurality of first coupling grooves 1126k and the plurality of second coupling grooves 1121m and 1122m can be symmetrically positioned in the first direction or the second direction.

[0192] The engaging member can be applied to the first coupling groove 1126k and the second coupling grooves 1121m and 1122m. That is, the engaging member can be applied between the first housing side portion (or the second housing side portion) and the first member 1126, thereby increasing the coupling strength between the first housing 1120 and the first member 1126. The engaging member can include epoxy resin or the like, but is not limited to this material.

[0193] In addition, the first member 1126 can further include a first protrusion 1126c and a second protrusion 1126d. The first protrusion 1126c can be in contact with the first housing side portion 1121, and the second protrusion 1126d can be in contact with the second housing side portion 1122. The first protrusion 1126c can extend along a third direction (Z-axis direction) from one end of the outer surface 1126S2 of the first member. The second protrusion 1126d can extend along 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 can face the retainer.

[0194] 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. Accordingly, the reliability of the camera actuator according to the embodiment can be improved.

[0195] In addition, as described above, the housing wall portion 1124 according to the embodiment may include the wall portion 1124a and the housing extension 1124b.

[0196] The housing wall portion 1124 or the wall portion 1124a may overlap with the first through hole 1126a and the second through hole 1126b of the first member 1126 in the optical axis direction (Z-axis direction). For example, the housing wall portion 1124 or the wall portion 1124a may partially overlap with the first through hole 1126a and the second through hole 1126b of the first member 1126 in the optical axis direction (Z-axis direction).

[0197] In addition, the second protrusion groove PH2 may be positioned between adjacent wall portions 1124a. In addition, the housing wall portion 1124 or the wall portion 1124a may not overlap with the second protrusion groove PH2 in the optical axis direction (Z-axis direction).

[0198] With this configuration, the effective area of the light emitted after being reflected by the optical member positioned between the adjacent wall portions 1124a can be increased.

[0199] In addition, the distance (spacing distance in the second direction) between adjacent housing extensions 1124b may be decreased in the optical axis direction. With this configuration, the amount of light incident on the optical member can be increased. In addition, the housing extension 1124b can sufficiently serve as a stopper for preventing the holder from tilting.

[0200] In addition, the third housing hole 1123a may be positioned between adjacent housing extensions 1124b. That is, the third housing hole 1123a and the housing extension 1124b do not overlap with each other in the first direction (X-axis direction) and may not be aligned.

[0201] Figure 7 is a perspective view of an optical member of a first camera actuator according to an embodiment.

[0202] The optical member 1132 may be seated on the holder. The optical member 1132 may be a right-angled prism serving as a reflector, but is not limited thereto.

[0203] In the embodiment, the optical member 1132 may have a protrusion (not shown) located on a part of its outer surface. The optical member 1132 may be easily coupled to the holder through the protrusion (not shown). In addition, the holder may be coupled to the optical member 1132 through a groove or a protrusion.

[0204] In addition, the lower surface 1132b of the optical member 1132 can be seated on the seating surface of the holder. Thus, the lower surface 1132b of the optical member 1132 can correspond to the seating surface of the holder. In addition, the lower surface 1132b of the optical member 1132 can be a reflective surface. Further, the upper surface of the optical member 1132 can be an incident surface through which light is incident. Further, the rear surface of the optical member 1132 can be an output surface through which light is output.

[0205] In addition, in the embodiment, the lower surface 1132b can be formed of an inclined surface in the same manner as the seating surface of the holder. Thus, it is possible to prevent the optical member 1132 from being separated from the holder when the prism moves according to the movement of the holder.

[0206] In addition, a groove is formed on the lower surface 1132b of the optical member 1132, and a joining member is applied to the groove, and thus the optical member 1132 can be coupled to the holder. Alternatively, the holder can also be coupled to the optical member 1132 by applying the joining member to a groove or a protrusion of the holder.

[0207] In addition, the protrusion of the holder can face the housing wall portion to be described below. Further, the protrusion of the holder can overlap the optical member 1132 in the optical axis direction. Thus, in the embodiment, the protrusion of the holder can not overlap the housing wall portion in the optical axis direction.

[0208] In addition, as described above, the optical member 1132 can have a structure capable of reflecting light reflected from the outside (e.g., an object) into the camera module. As in the embodiment, the optical member 1132 can be formed of a single mirror. Further, the optical member 1132 can solve the spatial limitation of the first camera actuator and the second camera actuator by changing the path of the reflected light. Thus, it should be understood that the camera module can provide a wide range of magnifications by extending the optical path while minimizing the thickness of the camera module. Further, it should be understood that a camera module including a camera actuator according to the embodiment can provide a wide range of magnifications by extending the optical path while minimizing the thickness.

[0209] Figure 8a is a perspective view of a holder of a first camera actuator according to an embodiment, Figure 8b is a bottom view of a holder of a first camera actuator according to an embodiment, Figure 8c is a front view of a holder of a first camera actuator according to an embodiment, Figure 8d is a rear view of a second member of a first camera actuator according to an embodiment, and Figure 8eIt is a bottom view of the second member of the first camera actuator according to an embodiment.

[0210] Referring Figures 8a to 8e , the holder 1131 may include a seating surface 1131o on which the optical member 1132 is seated. The seating surface 1131o may be an inclined surface. Additionally, the holder 1131 may include a stepped portion on the seating surface 113o. Additionally, the stepped portion of the holder 1131 may be coupled to a protrusion (not shown) of the optical member 1132.

[0211] 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.

[0212] 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 disposed based on the second holder outer surface 1131S2 with respect to the first direction (X-axis direction).

[0213] The first holder outer surface 1131S1 may be positioned to correspond to the first housing side portion. That is, the first holder outer surface 1131S1 may face the first housing side portion. Additionally, the second holder outer surface 1131S2 may be positioned to correspond to the second housing side portion. That is, the second holder outer surface 1131S2 may be positioned to face the second housing side portion.

[0214] Additionally, the first holder outer surface 1131S1 may include a first seating groove 1131S1a. Additionally, the second holder outer surface 1131S2 may include a second seating groove 1131S2a. The first seating groove 1131S1a and the second seating groove 1131S2a may be symmetrically disposed with respect to the first direction (X-axis direction).

[0215] In addition, the first seating groove 1131S1a and the second seating groove 1131S2a can be arranged to overlap each other in the second direction (Y-axis direction). In addition, the first magnet 1151a can be disposed in the first seating groove 1131S1a, and the second magnet 1151b can be disposed in the second seating groove 1131S2a. The first magnet 1151a and the second magnet 1151b can also be symmetrically arranged with respect to the first direction (X-axis direction). In this specification, it should be understood that the first magnet to the third magnet can be coupled to the housing through a yoke or a coupling member. The polarities of the first magnet and the second magnet can be opposite to each other. For example, the N pole and the S pole of the first magnet can be arranged in sequence along the third direction, and the S pole and the N pole of the second magnet can be arranged in sequence along the third direction. As a modification example, by adjusting the current injection or the current direction of the first coil and the second coil, the polarities of the first magnet and the second magnet can be the same as each other.

[0216] As described above, due to the positions of the first seating groove and the second seating groove, and the first magnet and the second magnet, the electromagnetic forces generated by each magnet are coaxially disposed on the outer surface 1131S1 of the first holder and the outer surface 1131S2 of the second holder. For example, the region applied to the outer surface 1131S1 of the first holder (e.g., the part where the electromagnetic force is the strongest) and the region applied to the outer surface 1131S2 of the second holder (e.g., the part where the electromagnetic force is the strongest) can be located on an axis parallel to the second direction (Y-axis direction). Therefore, the X-axis tilt can be accurately performed.

[0217] The first magnet 1151a can be disposed in the first seating groove 1131S1a, and the second magnet 1151b can be disposed in the second seating groove 1131S2a.

[0218] The outer surface 1131S3 of the third holder can be in contact with the outer surface 1131S1 of the first holder and the outer surface 1131S2 of the second holder, and can be an outer surface extending along 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. In addition, the outer surface 1131S3 of the third holder can 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 can be the lower surface of the holder 1131. That is, the outer surface 1131S3 of the third holder can be positioned to face the third housing side portion.

[0219] In addition, the outer surface 1131S3 of the third holder can include a third seating groove 1131S3a. The third magnet can be positioned in the third seating groove 1131S3a. The outer surface 1131S3 of the third holder can be positioned to face the third housing side portion 1123.

[0220] In addition, at least a part of the third housing hole 1123a may overlap with the third seating groove 1131S3a in the first direction (X-axis direction). Accordingly, the third magnet in the third seating groove 1131S3a and the third coil in the third housing hole 1123a may be positioned to face each other. In addition, the third magnet and the third coil may generate an electromagnetic force such that the second camera actuator can be tilted with respect to the Y-axis.

[0221] In addition, the X-axis tilt may be performed by a plurality of magnets (the first magnet and the second magnet), while the Y-axis tilt may be performed by only the third magnet.

[0222] In an embodiment, the third seating groove 1131S3a may have a larger area than the first seating groove 1131S1a or the second seating groove 1131S2a. With this configuration, the Y-axis tilt can be performed using current control similar to the current control for the X-axis tilt.

[0223] The fourth retainer outer surface 1131S4 may contact the first retainer outer surface 1131S1 and the second retainer outer surface 1131S2, and may be an outer surface extending in the first direction (X-axis direction) from one side of the first retainer outer surface 1131S1 and the second retainer outer surface 1131S2. In addition, the fourth retainer outer surface 1131S4 may be positioned between the first retainer outer surface 1131S1 and the second retainer outer surface 1131S2. That is, the fourth retainer outer surface 1131S4 may be positioned to face the first member.

[0224] The fourth retainer outer surface 1131S4 may include a fourth seating groove 1131S4a. The tilt guide portion 1141 may be positioned in the fourth seating groove 1131S4a. In addition, the second member 1131a and the first member 1126 may be positioned in the fourth seating groove 1131S4a. In addition, the fourth seating groove 1131S4a may include a plurality of regions. The fourth seating groove 1131S4a may include a first region AR1, a second region AR2, and a third region AR3.

[0225] The second member 1131a may be positioned 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 the region where the member base portion of the second member 1131a is positioned. In this case, the first region AR1 may be positioned on the fourth retainer outer surface 1131S4. That is, the first region AR1 may correspond to the region positioned above the fourth seating groove 1131S4a. In this case, the first region AR1 may not be a region in the fourth seating groove 1131S4a.

[0226] The first member 1126 may be positioned in the second region AR2. That is to say, the second region AR2 may overlap with the first member 1126 in the first direction (X-axis direction).

[0227] In addition, similar to the first region, the second region AR2 may be positioned on the outer surface 1131S4 of the fourth retainer. That is to say, the second region AR2 may correspond to the region positioned above the fourth seating groove 1131S4a.

[0228] The inclined guide portion may be positioned in the third region AR3. In particular, the base portion of the inclined guide portion may be positioned in the third region AR3. That is to say, the third region AR3 may overlap with the inclined guide portion (e.g., the base portion) in the first direction (X-axis direction).

[0229] In addition, the second region AR2 may be positioned between the first region AR1 and the third region AR3.

[0230] In addition, a second member may be provided in the first region AR1, and the second member 1131a may include a first groove gr1. In an embodiment, the second member 1131a may include the first groove gr1 formed on the inner surface 1131aas. In addition, a second magnetic portion may be provided in the first groove gr1 as described above.

[0231] In addition, as described above, the first member may be provided in the second region AR2. The first groove gr1 may be positioned to face the second groove gr2. For example, at least a part of the first groove gr1 may overlap with the second groove gr2 in the third direction (Z-axis direction).

[0232] In addition, the repulsive force generated by the second magnetic portion may be transmitted to the fourth seating groove 1131S4a of the retainer 1131 through the second member. Therefore, the retainer may apply a force to the inclined guide portion in the same direction as the repulsive force generated by the second magnetic member.

[0233] The first member may include a second groove gr2 facing the first groove gr1 formed in its outer surface. In addition, the first member may include a second protrusion groove formed on its inner surface as described above. In addition, the second protrusion may be seated in the second protrusion groove.

[0234] In addition, similar to the second magnetic portion, the repulsive force generated by the first magnetic portion and the second magnetic portion may be applied to the first member. Therefore, the first member and the second member may press the inclined guide portion provided between the first member and the retainer 1131 through the repulsive force.

[0235] The inclined guide portion 1141 can be provided in the third region AR3.

[0236] In addition, the first protrusion groove PH1 can be positioned in the fourth seating groove 1131S4a. Further, the first protrusion of the inclined guide portion 1141 can 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 applied to the second protrusion groove and the second protrusion PR2 in the same manner. That is, the maximum diameter of the second protrusion groove can correspond to the maximum diameter of the second protrusion PR2. Accordingly, the second protrusion can be in contact with the second protrusion groove. With this configuration, the first axis inclination can be easily performed based on the first protrusion, the second axis inclination can be easily performed based on the second protrusion, and the radius of the inclination can be improved.

[0237] In addition, in an embodiment, a plurality of first protrusion grooves PH1 can be formed. For example, either the first protrusion groove PH1 or the second protrusion groove PH2 can include a 1-1 protrusion groove PH1a and a 1-2 protrusion groove PH1b. Hereinafter, the description will be based on the first protrusion groove PH1 including the 1-1 protrusion groove PH1a and the 1-2 protrusion groove PH1b. In addition, the following description can also be applied to the second protrusion groove PH2 in the same manner. For example, the second protrusion groove PH2 can include a 2-1 protrusion groove and a 2-2 protrusion groove, where the description of the 1-1 protrusion groove can be applied to the 2-1 protrusion groove, and the description of the 1-2 protrusion groove can be applied to the 2-2 protrusion groove.

[0238] The 1-1 protrusion groove PH1a and the 1-2 protrusion groove PH1b can be arranged side by side in the first direction (X-axis direction). The 1-1 protrusion groove PH1a and the 1-2 protrusion groove PH1b can have the same maximum area or different maximum areas.

[0239] The plurality of first protrusion grooves PH1 can have different numbers of inclined surfaces. For example, the first protrusion groove PH1 can include a groove lower surface and an inclined surface. In this case, the plurality of protrusion grooves can have different numbers of inclined surfaces. In addition, the areas of the lower surfaces of the protrusion grooves can also be different.

[0240] For example, the 1-1 protrusion groove PH1a can include a first groove lower surface LS1 and a first inclined surface CS1. The 1-2 protrusion groove PH1b can include a second groove lower surface LS2 and a second inclined surface CS2.

[0241] In this case, the lower surface LS1 of the first groove and the lower surface LS2 of the second groove may have different areas. The area of the lower surface LS1 of the first groove may be smaller than the area of the lower surface LS2 of the second groove.

[0242] In addition, the number of the first inclined surfaces CS1 in contact with the lower surface LS1 of the first groove may be different from the number of the second inclined surfaces CS2. For example, the number of the first inclined surfaces CS1 may be greater than the number of the second inclined surfaces CS2.

[0243] With this configuration, the assembly tolerance of the first protrusion seated in the first protrusion groove PH1 can be easily compensated. For example, since the number of the first inclined surfaces CS1 is greater than the number of the second inclined surfaces CS2, the first protrusion can contact more inclined surfaces, thereby more accurately maintaining the position of the first protrusion in the 1-1 protrusion groove PH1a.

[0244] In contrast, in the 1-2 protrusion groove PH1b, the number of the inclined surfaces in contact with the first protrusion may be smaller than the number of the inclined surfaces in contact with the first protrusion in the 1-1 protrusion groove PH1a, thereby easily adjusting the position of the first protrusion.

[0245] In an embodiment, the second inclined surfaces CS2 may be arranged to be spaced apart from each other in the second direction (Y-axis direction). In addition, the lower surface LS2 of the second groove may extend in the first direction (X-axis direction) such that the first protrusion can easily move in the first direction (X-axis direction) in a state of being in contact with the second inclined surfaces CS2. That is, the position of the first protrusion in the 1-2 protrusion groove PH1b can be easily adjusted. In addition, a lubricating member may be applied to the first protrusion groove PH1.

[0246] In addition, in this 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 an embodiment, the first region AR1 may have a greater height in the first direction (X-axis direction) than the second region AR2 and the third region AR3. Therefore, a stepped portion may be positioned between the first region AR1 and the second region AR2.

[0247] In addition, the second member 1131a may include a first groove gr1. That is, the first groove gr1 may be positioned in the inner surface of the member base portion 1131aa. In addition, the second magnetic portion described above may be seated in the first groove gr1. In addition, a plurality of first grooves gr1 may be formed according to the number of the second magnetic portions. That is, the number of the first grooves gr1 may correspond to the number of the second magnetic portions.

[0248] In addition, the second member 1131a may include a member base portion 1131aa, a first extension portion 1131ab, and a second extension portion 1131ac.

[0249] The member base portion 1131aa may be positioned at the outermost side of the first camera actuator. The member base portion 1131aa may be positioned outside the first member. That is, the first member may be positioned between the member base portion 1131aa and the tilt guide portion.

[0250] The first extension portion 1131ab may extend from the edge of the member base portion 1131aa in a third direction (Z-axis direction). That is, the first extension portion 1131ab may extend from the member base portion 1131aa toward the holder 1131. This also applies to the second extension portion 1131ac in the same manner. In addition, the second extension portion 1131ac may extend from the edge of the member base portion 1131aa in a third direction (Z-axis direction). In an embodiment, the first extension portion 1131ab and the second extension portion 1131ac may be positioned at the edge of the member base portion 1131aa in a second direction (Y-axis direction). In addition, the first extension portion 1131ab and the second extension portion 1131ac may be provided between the upper member and the lower member.

[0251] Therefore, the second member 1131a may have a groove formed by the first extension portion 1131ab and the second extension portion 1131ac. That is, the groove may be positioned between the first extension portion 1131ab and the second extension portion 1131ac. Therefore, the first extension portion 1131ab and the second extension portion 1131ac may be connected only by the member base portion 1131aa. With this configuration, the second member 1131a may continuously receive a repulsive force generated by a second magnetic portion seated at the center of the member base portion 1131aa, particularly seated in the first groove gr1.

[0252] In addition, the first extension portion 1131ab may be spaced apart from the second extension portion 1131ac in a second direction (Y-axis direction) to form a separation space. The first member and the tilt guide portion may be seated in the separation space. In addition, the second magnetic portion and the first magnetic portion may be positioned in the separation space.

[0253] In addition, the first extension portion 1131ab and the second extension portion 1131ac may have the same length in a third direction (Z-axis direction). Therefore, the coupling strength, weight, etc. may be formed in a balanced manner such that the tilt of the holder can be accurately performed without tilting to one side.

[0254] In addition, the first extension portion 1131ab and the second extension portion 1131ac may be coupled to the holder. In the present specification, it should be understood that the coupling may be performed by a joining member other than the protrusion and groove structure described above. In an embodiment, the first extension portion 1131ab and the second extension portion 1131ac may include a third coupling groove 1131k formed in the third direction (Z-axis direction). In addition, a coupling protrusion 1131m may be positioned in a region where the first extension portion 1131ab and the second extension portion 1131ac in the fourth seating groove 1131S4a overlap in the third direction (Z-axis direction). The coupling protrusion 1131m may be positioned to correspond to the third coupling groove 1131k.

[0255] For example, a joining member, such as epoxy resin, may be applied to the third coupling groove 1131k. In addition, the coupling protrusion 1131m may be inserted into the third coupling groove 1131k of the first extension portion 1131ab and the second extension portion 1131ac. With this configuration, the second member 1131a and the holder 1131 may be coupled. In addition, the repulsive force applied to the second member 1131a may be transmitted to the holder 1131 through this coupling.

[0256] However, as described above, it should be understood that the positions of the protrusion and groove structure may also be changed relative to each other.

[0257] Figure 9a is a perspective view of an inclination guiding unit of a first camera actuator according to an embodiment, Figure 9b is a perspective view of the inclination guiding unit of the first camera actuator in a direction Figure 9a different from, and Figure 9c is a view of the inclination guiding unit of the first camera actuator along the line F-F' in Figure 9a .

[0258] The inclination guiding portion 1141 according to an embodiment may include a base BS, a first protrusion PR1 protruding from a first surface 1141a of the base BS, and a second protrusion PR2 protruding from a second surface 1141b of the base BS. In addition, the first protrusion and the second protrusion may have opposite surfaces depending on the structure, but will be described based on the drawings below. In addition, it should be understood that the first protrusion PR1 and the second protrusion PR2 may be integrally formed with the base BS, and as illustrated in the drawings, the first protrusion PR1 and the second protrusion PR2 may have a spherical shape similar to a spherical member. In addition, the first protrusion PR1 and the second protrusion PR2 may not be in a protruding or projecting shape, but may be spherical.

[0259] First, the base BS may include a first surface 1141a and a second surface 1141b opposite to the first surface 1141a. That is, the first surface 1141a may be spaced apart from the second surface 1141b in the third direction (Z-axis direction), and the first surface 1141a and the second surface 1141b may be outer surfaces that are opposite to each other or face each other in the inclined guiding portion 1141.

[0260] The inclined guiding portion 1141 may include a first protrusion PR1 extending to one side on the first surface 1141a. According to an embodiment, the first protrusion PR1 may protrude from the first surface 1141a toward the holder. A plurality of first protrusions PR1 may be formed, and the plurality of first protrusions PR1 may include a 1-1 protrusion PR1a and a 1-2 protrusion PR1b.

[0261] The 1-1 protrusion PR1a and the 1-2 protrusion PR1b may be positioned side by side in the first direction (X-axis direction). That is, the 1-1 protrusion PR1a and the 1-2 protrusion PR1b may overlap in the first direction (X-axis direction). Additionally, in an embodiment, the 1-1 protrusion PR1a and the 1-2 protrusion PR1b may be bisected by a virtual line extending in the first direction (X-axis direction).

[0262] Furthermore, each of the 1-1 protrusion PR1a and the 1-2 protrusion PR1b may have a curvature and may have, for example, a hemispherical shape. Additionally, the 1-1 protrusion PR1a and the 1-2 protrusion PR1b may contact the first groove of the housing at a point farthest from the first surface 1141a of the base BS.

[0263] In addition, the inclined guiding 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. Additionally, in an embodiment, a plurality of second protrusions PR2 may be formed, and the plurality of second protrusions PR2 may include a 2-1 protrusion PR2a and a 2-2 protrusion PR2b.

[0264] The 2-1 protrusion PR2a and the 2-2 protrusion PR2b may be positioned side by side in the second direction (Y-axis direction). That is, the 2-1 protrusion PR2a and the 2-2 protrusion PR2b may overlap in the second direction (Y-axis direction). Additionally, in an embodiment, the 2-1 protrusion PR2a and the 2-2 protrusion PR2b may be bisected by a virtual line extending in the second direction (Y-axis direction).

[0265] Each of the 2-1 protrusion PR2a and the 2-2 protrusion PR2b may have a curvature and have, for example, a hemispherical shape. Additionally, the 2-1 protrusion PR2a and the 2-2 protrusion PR2b may contact the second member 1131a at a point spaced apart from the second surface 1141b of the base BS.

[0266] The 1-1 protrusion PR1a and the 1-2 protrusion PR1b may be positioned in a region between the 2-1 protrusion PR2a and the 2-2 protrusion PR2b in a second direction. According to an embodiment, the 1-1 protrusion PR1a and the 1-2 protrusion PR1b may be positioned at the center of a separation space between the 2-1 protrusion PR2a and the 2-2 protrusion PR2b in the second direction. With this configuration, the actuator according to the embodiment may have an angle of X-axis tilt within the same range with respect to the X-axis. That is, the tilt guide portion 1141 and the holder may similarly provide the following range (e.g., positive / negative range): within this range, X-axis tilt may be performed based on the 1-1 protrusion PR1a and the 1-2 protrusion PR1b with respect to the X-axis.

[0267] Additionally, the 2-1 protrusion PR2a and the 2-2 protrusion PR2b may be positioned in a region between the 1-1 protrusion PR1a and the 1-2 protrusion PR1b in a first direction. According to an embodiment, the 2-1 protrusion PR2a and the 2-2 protrusion PR2b may be positioned at the center of a separation space between the 1-1 protrusion PR1a and the 1-2 protrusion PR1b in the first direction. With this configuration, the actuator according to the embodiment may have an angle of Y-axis tilt within the same range with respect to the Y-axis. That is, the tilt guide portion 1141 and the holder may similarly provide the following range (e.g., positive / negative range): within this range, Y-axis tilt may be performed based on the 2-1 protrusion PR2a and the 2-2 protrusion PR2b with respect to the Y-axis.

[0268] 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. Additionally, the third outer line M3 and the fourth outer line M4 may be positioned between the first outer line M1 and the second outer line M2. Additionally, the first outer line M1 and the second outer line M2 may be perpendicular to the first direction (X-axis direction), but the third outer line M3 and the fourth outer line M4 may be parallel to the first direction (X-axis direction).

[0269] In this case, the first protrusion PR1 can be positioned on the first virtual line VL1. Here, the first virtual line VL1 is the line that bisects the first outer line M1 and the second outer line M2. Alternatively, the first virtual line VL1 and the third virtual line VL1' are the lines that bisect the base BS in the second direction (Y-axis direction). Therefore, the tilt guiding portion 1141 can easily perform X-axis tilting through the first protrusion PR1. In addition, since the tilt guiding portion 1141 performs X-axis tilting with respect to the first virtual line VL1, the rotational force can be evenly applied to the tilt guiding portion 1141. Therefore, X-axis tilting can be precisely performed and the reliability of the device can be improved.

[0270] In addition, the 1-1 protrusion PR1a and the 1-2 protrusion PR1b can be symmetrically arranged with respect to the first virtual line VL1 and the second virtual line VL2. Alternatively, the 1-1 protrusion PR1a and the 1-2 protrusion PR1b can be symmetrically positioned based on the first center point. With this configuration, when performing X-axis tilting, the supporting force supported by the first protrusion PR1 can be equally applied to the upper side portion and the lower side portion with respect to the second virtual line VL2. Therefore, the reliability of the tilt guiding portion can be improved. Here, the second virtual line VL2 is the line that bisects the third outer line M3 and the fourth outer line M4. Alternatively, the second virtual line VL2 and the fourth virtual line VL2' are the lines that bisect the base BS in the first direction (X-axis direction).

[0271] In addition, the first center point can be the intersection of the first virtual line VL1 and the second virtual line VL2. Alternatively, according to the shape of the tilt guiding portion 1141, the second center point can also be the point corresponding to the center of gravity.

[0272] In addition, the second surface 1141b can 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' can face each other, and the seventh outer line M3' and the eighth outer line M4' can face each other. In addition, the seventh outer line M3' and the eighth outer line M4' can be positioned between the fifth outer line M1' and the sixth outer line M2'. In addition, the fifth outer line M1' and the sixth outer line M2' can be perpendicular to the first direction (X-axis direction), but the seventh outer line M3' and the eighth outer line M4' can be parallel to the first direction (X-axis direction).

[0273] In addition, since the tilt guiding portion 1141 performs Y-axis tilting with respect to the fourth virtual line VL2', the rotational force can be evenly applied to the tilt guiding portion 1141. Therefore, Y-axis tilting can be precisely performed and the reliability of the device can be improved.

[0274] In addition, the 2-1 protrusion PR2a and the 2-2 protrusion PR2b may be symmetrically disposed on the fourth virtual line VL2' with respect to the third virtual line VL1'. Alternatively, the 2-1 protrusion PR2a and the 2-2 protrusion PR2b may be symmetrically positioned based on the second center point. With this configuration, when performing Y-axis tilting, the support force supported by the second protrusion PR2 can be equally applied to the upper side portion and the lower side portion with respect to the fourth virtual line VL2'. Therefore, the reliability of the tilting 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'. In addition, the second center point may be the intersection of the third virtual line VL1' and the fourth virtual line VL2'. Alternatively, depending on the shape of the tilting guide portion 1141, the second center point may also be a point corresponding to the center of gravity.

[0275] In addition, the distance DR2 between the 1-1 protrusion PR1a and the 1-2 protrusion PR1b in the first direction (X-axis direction) may be greater than the length of the second protrusion PR2 in the first direction (X-axis direction). Therefore, when performing X-axis tilting based on the 1-1 protrusion PR1a and the 1-2 protrusion PR1b, the resistance caused by the second protrusion PR2 can be minimized.

[0276] Correspondingly, the distance ML2 between the 2-1 protrusion PR2a and the 2-2 protrusion PR2b in the second direction (Y-axis direction) may be greater than the length of the first protrusion PR1 in the second direction (Y-axis direction). Therefore, when performing Y-axis tilting based on the 2-1 protrusion PR2a and the 2-2 protrusion PR2b, the resistance caused by the first protrusion PR1 can be minimized.

[0277] Figure 10a is a view showing a first driving unit of a first camera actuator according to an embodiment, Figure 10b is a perspective view of a driving coil and a first plate portion in a first camera actuator according to an embodiment, Figure 10c is another perspective view of a driving coil and a first plate portion in a first camera actuator according to an embodiment, Figure 10d is a front view of a driving coil and a first plate portion in a first camera actuator according to an embodiment, Figure 10e is a plan view of a driving coil and a first plate portion in a first camera actuator according to an embodiment, Figure 10f is a developed plan view of a driving coil and a first plate portion in a first camera actuator according to an embodiment, Figure 10g is a developed bottom view of a driving coil and a first plate portion in a first camera actuator according to an embodiment, Figure 10h is for describing Figure 10f the connection between the coils in Figure 10iA cross-sectional view of a first plate portion in a first camera actuator according to an embodiment. Figure 10j and Figure 10k is a view for describing the effects of a drive coil and a first plate portion in a first camera actuator according to an embodiment. Figure 10l is a front view of a drive coil and a first plate portion in a first camera actuator according to another embodiment. Figure 10m is a cross-sectional view of a first plate portion in a first camera actuator according to another embodiment. Figure 10n is a front view of a drive coil and a first plate portion in a first camera actuator according to yet another embodiment. Figure 10o is a cross-sectional view of a first plate portion in a first camera actuator according to yet another embodiment. Figure 10p is a front view of a drive coil and a first plate portion in a first camera actuator according to yet another embodiment, and Figure 10q is a cross-sectional view of a first plate portion in a first camera actuator according to yet another embodiment.

[0278] Referring to Figure 10a , the first driving unit 1150 includes a driving magnet 1151, a drive coil 1152, a Hall sensor 1153, a first plate portion 1154, and a yoke portion 1155. Alternatively, the first driving unit 1150 may be separated from the first plate portion 1154. For example, the first plate portion 1154 may include the drive coil 1152.

[0279] In addition, as described above, the driving magnet 1151 may include a first magnet 1151a, a second magnet 1151b, and a third magnet 1151c that provide a driving force generated by electromagnetic force. The first magnet 1151a, the second magnet 1151b, and the third magnet 1151c may each be positioned on the outer surface of the holder 1131.

[0280] In addition, the drive coil 1152 may include a plurality of coils. In an embodiment, the drive coil 1152 may include a first coil 1152a, a second coil 1152b, and a third coil 1152c.

[0281] The first coil 1152a may be positioned to face the first magnet 1151a. Thus, as described above, the first coil 1152a may be positioned in the first housing hole 1121a of the first housing side portion 1121. In addition, the second coil 1152b may be positioned to face the second magnet 1151b. Thus, as described above, the second coil 1152b may be positioned in the second housing hole 1122a of the second housing side portion 1122.

[0282] The second camera actuator according to the embodiment can control the moving member 1130 to rotate along the first axis (X-axis direction) or the second axis (Y-axis direction) by the electromagnetic force between the driving magnet 1151 and the driving coil 1152, thereby minimizing the occurrence of eccentricity or tilting phenomena when implementing OIS and providing optimal optical characteristics.

[0283] In addition, according to the embodiment, OIS can be implemented by means of the tilt guiding portion 1141 provided between the first housing 1120 and the moving member 1130 of the rotating unit 1140, to provide an ultra-thin and ultra-small camera actuator and a camera module including the camera actuator, so as to solve the size limitation of the actuator.

[0284] The first plate portion 1154 may include a first plate side portion 1154a, a second plate side portion 1154b, and a third plate side portion 1154c.

[0285] The first plate side portion 1154a and the second plate side portion 1154b may be arranged to face each other. In addition, the third plate side portion 1154c may be positioned between the first plate side portion 1154a and the second plate side portion 1154b.

[0286] In addition, the first plate side portion 1154a may be positioned between the first housing side portion and the shielding cover, and the second plate side portion 1154b may be positioned between the second housing side portion and the shielding cover. In addition, the third plate side portion 1154c may be positioned between the third housing side portion and the shielding cover, and may be the lower surface of the first plate portion 1154.

[0287] The first plate side portion 1154a may be coupled to and electrically connected to the first coil 1152a. In addition, the first plate side portion 1154a may be coupled to and electrically connected to the first Hall sensor 1153a.

[0288] The second plate side portion 1154b may be coupled to and electrically connected to the second coil 1152b. It should be understood that the second plate side portion 1154b may also be coupled to and electrically connected to the first Hall sensor.

[0289] The third plate side portion 1154c may be coupled to and electrically connected to the third coil 1152c. In addition, the third plate side portion 1154c may be coupled to and electrically connected to the second Hall sensor 1153b.

[0290] The yoke portion 1155 may include a third yoke 1155a, a fourth yoke 1155b, and a fifth yoke 1155c. The third yoke 1155a may be positioned in the first seating groove and coupled to the first magnet 1151a. Additionally, the fourth yoke 1155b may be positioned in the second seating groove and coupled to the second magnet 1151b. Additionally, the fifth yoke 1155c may be positioned in the third seating groove and coupled to the third magnet 1151c. The third yoke 1155a to the fifth yoke 1155c allow the first magnet 1151a to the third magnet 1151c to be easily seated in the first seating groove to the third seating groove and coupled to the housing.

[0291] Referring Figures 10b to 10i , in a camera actuator according to an embodiment, the first plate portion 1154 may be connected to the holder 1131. For example, as described above, the first plate portion 1154 may be coupled to the holder 1131.

[0292] Furthermore, the drive coil 1152 and the Hall sensor 1153 may be provided on the first plate portion 1154. In an embodiment, the first coil 1152a to the third coil 1152c of the drive coil 1152 may be provided on the first plate portion 1154. Additionally, the first coil 1152a to the third coil 1152c may be mounted on the first plate portion 1154. Additionally, the first Hall sensor 1153a and the second Hall sensor 1153b may be provided on the first plate portion 1154. Additionally, the first Hall sensor 1153a and the second Hall sensor 1153b may be provided on the first plate portion 1154.

[0293] Additionally, the posture detection sensor GS may be provided on the first plate portion 1154. The posture detection sensor GS may be mounted on the first plate portion 1154. Additionally, the driver IC DI and the actuator controller may be provided on the first plate portion 1154. The driver IC DI may be mounted on the first plate portion 1154. For example, the posture detection sensor GS may include various sensors. For example, the posture detection sensor GS may include a gyro sensor. Additionally, in an embodiment, the first plate portion 1154 may include the posture detection sensor GS. Alternatively, the first drive unit may include the posture detection sensor GS.

[0294] Furthermore, according to the present disclosure, the thickness of the first plate portion 1154 may be different to correspond to the posture detection sensor GS or the driver IC DI. Details of the configuration will be described below.

[0295] In an embodiment, the first board side portion 1154a and the second board side portion 1154b of the first board portion 1154 have different thicknesses to correspond to the posture detection sensor GS or the drive coils (the first coil and the second coil). The board side portion can be replaced with various expressions such as "board area" and "board portion".

[0296] In an embodiment, the drive IC DI can be disposed inside the second board side portion 1154b. In addition, the posture detection sensor GS can be disposed outside the second board side portion 1154b. Further, each of the first coil 1152a to the third coil 1152c can be disposed inside each of the first board side portion 1154a to the third board side portion 1154c. Hereinafter, a description will be made based on the above description. The second board side portion 1154b can have a greater thickness than the other board side portions in the region where the second coil 1152b is disposed. For example, the second board side portion 1154b can have the first layer to the third layer in the region where the posture detection sensor GS and the drive IC DI are disposed. As a modification example, the first layer to the third layer can overlap the region where the posture detection sensor GS and the drive IC DI are disposed in the second direction. Alternatively, the first layer to the third layer can overlap the second coil 1152b in the second direction. As another example, at least a part of the first layer to the third layer can overlap the second coil 1152b in the second direction.

[0297] In addition, at least some portions of the second board side portion 1154b and the first board side portion 1154a can overlap the third coil 1152c in the second direction.

[0298] In addition, the thickness d1 of the first board side portion 1154a can be the same as or different from the thickness d2 of the second board side portion 1154b. In this embodiment, the thickness d1 of the first board side portion 1154a can be the same as the thickness d2 of the second board side portion 1154b. In this case, the thickness of the first board side portion 1154a and the thickness of the second board side portion 1154b can correspond to the length in the second direction (Y-axis direction). Further, the thickness d3 of the third board side portion 1154c can correspond to the length in the first direction. The thickness d3 of the third board side portion 1154c can be less than the thickness d1 of the first board side portion 1154a or the thickness d2 of the second board side portion 1154b. However, as a modification example, the second layer L2 to be described below can also be disposed inside the third board side portion 1154c. Therefore, the second layer L2 can be disposed between the first layer L1 on the third board side portion 1153c and the third coil 1152c. Therefore, the heat generated from the third coil 1152c can be easily dissipated through the second layer L2.

[0299] First, as described above, the first plate portion 1154 may include a first plate side portion 1154a, a second plate side portion 1154b facing the first plate side portion 1154a, and a third plate side portion 1154c disposed between the first plate side portion 1154a and the second plate side portion 1154b. Additionally, the thickness of the first plate side portion 1154a may be greater than the thicknesses of the second plate side portion 1154b and the third plate side portion 1154c. That is, the thickness of the first plate portion 1154 may be large in the region or side portion where the gyro sensor is installed. For example, the thickness of the second plate side portion 1154b on which the posture detection sensor is provided may be greater than the thicknesses of the other plate side portions. Thus, the heat resistance durability can be improved.

[0300] Furthermore, the first plate side portion 1154a, the second plate side portion 1154b, and the third plate side portion 1154c may have a structure that is integrally formed with each other or separated from each other. Additionally, the first plate side portion 1154a, the second plate side portion 1154b, and the third plate side portion 1154c as separated members may have a structure that is connected to each other.

[0301] Moreover, the first plate portion 1154 may include a first layer L1, a second layer L2 disposed inside the first layer L1, and a third layer L3 disposed outside the first layer L1. That is, based on the first layer L1, the third layer L3 may be positioned to face the second layer L2 or be opposite to the second layer L2. Alternatively, the first layer L1 may be positioned between the second layer L2 and the third layer L3. The inside means the direction from the first plate portion 1154 toward the center. For example, the inside may correspond to the direction from the first plate side portion 1154a toward the second plate side portion 1154b based on the first plate side portion 1154a. Additionally, the inside may correspond to the direction from the second plate side portion 1154b toward the first plate side portion 1154a based on the second plate side portion 1154b. The outside may be the direction opposite to the inside.

[0302] In addition, in an embodiment, the first layer L1 may be positioned over the entire region of the first plate portion 1154. For example, the first layer L1 may exist on each of the first plate side portion 1154a to the third plate side portion 1154c.

[0303] The first layer L1 may include a first sub-layer L1a positioned at its central portion, a second sub-layer L1b positioned outside and inside the first sub-layer L1a, a third sub-layer L1c positioned outside and inside the second sub-layer L1b, a fourth sub-layer L1d positioned outside and inside the third sub-layer L1c, and a fifth sub-layer L1e positioned outside and inside the fourth sub-layer L1c.

[0304] The first sub-layer L1a may include a metal and a polymer (a material or molecule having an imide functional group). For example, the first sub-layer L1a may be made of a copper foil and polyimide. Additionally, the first sub-layer L1a may be formed by stacking copper (Cu) on the outer and inner sides, with polyimide between the outer and inner sides.

[0305] The second sub-layer L1b may be a layer made of a metal. For example, the second sub-layer L1b may be made of copper.

[0306] The third sub-layer L1c may be formed by electroplating or may be an electroplated layer. The third sub-layer L1c may be a layer formed by using metal plating on an insulating plate, via holes, and conductive patterns by means of chemical or electrochemical reactions.

[0307] The fourth sub-layer L1d may be a bonding layer or a covering layer. The fourth sub-layer L1d may be a layer formed by an adhesive member.

[0308] Furthermore, the fifth sub-layer L1e may be a layer made of polyimide. The fifth sub-layer L1e may be coupled to the first sub-layer L1a, etc. using the semi-cured fourth sub-layer L1d. For example, the fourth sub-layer L1d and the fifth sub-layer L1e may be protective layers in the first layer L1.

[0309] In addition, the first insulating layer PL1 may be disposed inside the first layer L1. The first insulating layer PL1 may be an insulating layer or a bonding layer. For example, the first insulating layer PL1 may be a prepreg in the form of a sheet pre-impregnated with reinforcing fibers. The first insulating layer PL1 may be made of glass fibers and epoxy resin. For example, the first insulating layer PL1 may be formed by impregnating glass fibers and epoxy resin. The first insulating layer PL1 may have improved strength, elasticity, and lightweight characteristics. The first layer L1 may be joined to the second layer L2 through the first insulating layer PL1.

[0310] Additionally, the second insulating layer PL2 may be disposed outside the first layer L1. The second insulating layer PL2 may be an insulating layer or a bonding layer. For example, the second insulating layer PL2 may be a sheet-like prepreg material pre-impregnated with reinforcing fibers. The second insulating layer PL2 may be made of glass fibers and epoxy resin. For example, the second insulating layer PL2 may be formed by impregnating glass fibers and epoxy resin. The second insulating layer PL2 may have improved strength, elasticity, and lightweight characteristics. The first layer L1 may be joined to the third layer L3 through the second insulating layer PL2.

[0311] The second layer L2 may be located inside the first layer L1. The second layer L2 may include a first inner sub-layer L2a, a second inner sub-layer L2b, a third inner sub-layer L2c, and a fourth inner sub-layer L2d.

[0312] Based on the first layer L1, the first inner sub-layer L2a, the second inner sub-layer L2b, the third inner sub-layer L2c, and the fourth inner sub-layer L2d can be stacked sequentially. Among the first inner sub-layer L2a, the second inner sub-layer L2b, the third inner sub-layer L2c, and the fourth inner sub-layer L2d, the first inner sub-layer L2a can be positioned closest to the first layer L1.

[0313] The first inner sub-layer L2a is a core layer and can be made of FR-5. Additionally, the second inner sub-layer L2b can be a layer made of metal. For example, the second inner sub-layer L2b can be made of copper.

[0314] The third inner sub-layer L2c can be formed by plating or can be a plated layer. The third inner sub-layer L2c can be a layer formed by plating an insulating board, vias, and conductive patterns with metal by means of chemical or electrochemical reactions.

[0315] The fourth inner sub-layer L2d can be an insulating layer on the third inner sub-layer L2c. The fourth inner sub-layer L2d can be a solder mask layer including insulating ink.

[0316] The third layer L3 can be positioned outside the first layer L1.

[0317] The third layer L3 can include a first outer sub-layer L3a, a second outer sub-layer L3b, a third outer sub-layer L3c, and a fourth outer sub-layer L3d.

[0318] Based on the first layer L1, the first outer sub-layer L3a, the second outer sub-layer L3b, the third outer sub-layer L3c, and the fourth outer sub-layer L3d can be stacked sequentially. Among the first outer sub-layer L3a, the second outer sub-layer L3b, the third outer sub-layer L3c, and the fourth outer sub-layer L3d, the first outer sub-layer L3a can be positioned closest to the first layer L1.

[0319] The first outer sub-layer L3a is a core layer and can be made of FR-5. Additionally, the second outer sub-layer L3b can be a layer made of metal. For example, the second outer sub-layer L3b can be made of copper.

[0320] The third outer sub-layer L3c can be formed by plating or can be a plated layer. The third outer sub-layer L3c can be a layer formed by plating an insulating board, vias, and conductive patterns with metal by means of chemical or electrochemical reactions.

[0321] The fourth outer sub-layer L3d can be an insulating layer on the third outer sub-layer L3c. The fourth outer sub-layer L3d can be a solder mask layer including insulating ink.

[0322] The first outer sub-layer L3a can be positioned corresponding to or opposite to the first inner sub-layer L2a based on the first layer L1. The second outer sub-layer L3b can be positioned corresponding to or opposite to the second inner sub-layer L2b based on the first layer L1. The third outer sub-layer L3c can be positioned corresponding to or opposite to the third inner sub-layer L2c based on the first layer L1. The fourth outer sub-layer L3d can be positioned corresponding to or opposite to the fourth inner sub-layer L2d based on the first layer L1.

[0323] In an embodiment, the second layer L2 can be disposed inside the first layer L1 and inside the first board side portion 1154a and the second board side portion 1154b. That is to say, the second layer L2 can be positioned adjacent to the drive coil.

[0324] In addition, the second layer L2 can be positioned inside the first board side portion 1154a and / or inside the second board side portion 1154b.

[0325] As described above, the first layer L1 can be disposed on the first board side portion 1154a to the third board side portion 1154c. For example, the first layer L1 can be integrally formed with the first board side portion 1154a to the third board side portion 1154c, or separately formed from the first board side portion 1154a to the third board side portion 1154c.

[0326] In addition, the second layer L2 and the third layer L3 can be disposed on at least one of the first board side portion 1154a and the second board side portion 1154b. For example, the second layer L2 can be disposed on at least one of the first board side portion 1154a and the second board side portion 1154b. In addition, the third layer L3 can be disposed on at least one of the first board side portion 1154a and the second board side portion 1154b.

[0327] In addition, the attitude detection sensor GS can be disposed on at least one of the first board side portion 1154a and the second board side portion 1154b. For example, the attitude detection sensor GS can be disposed on the second board side portion 1154b. In addition, the second layer L2 and the third layer L3 can be disposed on the second board side portion 1154b. With this configuration, external shocks and the like can be easily absorbed by the second layer L2 and the third layer L3. Therefore, regardless of the shock, the attitude detection sensor GS can provide a stable attitude detection signal. That is to say, the camera actuator and the camera module according to the embodiment can provide improved reliability and more precise and stable driving.

[0328] In addition, the attitude detection sensor GS can be disposed outside the first layer L1 on the second board side portion 1154b. In addition, the drive coils 1152a, 1152b can be disposed inside the first layer L1 on the second board side portion 1154b.

[0329] In an embodiment, the second layer L2 may be arranged to correspond to the attitude detection sensor GS on the second board side portion 1154b. Additionally, the third layer L3 may be arranged on the second board side portion 1154b to correspond to the drive coil or the second drive coil 1152b.

[0330] For example, when the second layer L2 is positioned inside the first layer L1, the first drive coil 1152a and the second drive coil 1152b may be in contact with the second layer L2 positioned inside the first layer L1. Alternatively, the first drive coil 1152a and the second drive coil 1152b may be in contact with the first layer L1 inside the first layer L1.

[0331] Furthermore, the second layer L2 may overlap with the attitude detection sensor GS and the drive coil (second drive coil) in the horizontal direction (Y-axis direction). Additionally, the third layer L3 may overlap with the attitude detection sensor GS and the drive coil (second drive coil) in the horizontal direction (Y-axis direction). The horizontal direction is the second direction (Y-axis direction) and may correspond to the direction from the first board side portion 1154a towards the second board side portion 1154b.

[0332] Additionally, the second layer L2 may overlap with the attitude detection sensor GS on the second board side portion 1154b in the second direction or the horizontal direction. Additionally, at least a portion of the second layer L2 may not overlap with the drive coil (second coil) on the second board side portion 1154b.

[0333] Additionally, the third layer L3 may overlap with the drive coil (second coil) on the second board side portion 1154b. Additionally, at least a portion of the third layer L3 may not overlap with the attitude detection sensor on the second board side portion 1154b.

[0334] Furthermore, at least some portions of the attitude detection sensor GS and the drive coil (second coil) may overlap (OV1 and OV2) in the horizontal direction (Y-axis direction). With this configuration, while reducing the heat generated from the drive coil, the sensitivity to shock as described above can be reduced.

[0335] Furthermore, the first board side portion 1154a and the second board side portion 1154b may have different lengths. The length L1 of the first board side portion 1154a in the third direction (Z-axis direction) may be greater than the length L2 of the second board side portion 1154b in the third direction. Additionally, the length L2 of the second board side portion 1154b in the third direction may be greater than the length L3 of the third board side portion 1154c in the third direction.

[0336] In addition, the first layer L1 may be exposed at an end of either the first board side portion 1154a or the second board side portion 1154b. Hereinafter, the first layer L1 exposed on the first board side portion 1154a having a long length in the third direction will be described. In addition, the exposed first layer L1 is the exposed first layer or the exposed first insulating layer. Further, the first board side portion 1154a may include an exposed area EA where the first layer L1 is exposed.

[0337] That is, the first layer L1 may be exposed at the end of the first board side portion 1154a, and the exposed area EA on the first board side portion 1154a where the first layer L1 is exposed may be spaced apart from the second layer L2. That is, the second layer L2 may not be positioned in the exposed area EA. Alternatively, the exposed area EA may not be in contact with the second layer L2.

[0338] The exposed area EA may correspond to connection terminals EN1 to EN7 positioned at the end of the outer surface of the first board side portion 1154a on the first board side portion 1154a. That is, the first board portion 1154 may include connection terminals EN1 to EN7 provided on the first board side portion 1154a to correspond to the exposed area where the first layer L1 is exposed. For example, the exposed area EA may overlap with the connection terminals EN1 to EN7 in the second direction. Therefore, electrical connection (e.g., soldering) between the connection terminals EN1 to EN7 and a circuit board or a connector can be easily achieved.

[0339] In addition, the third board side portion 1154c may not overlap with the second layer L2 and the third layer L3 in the vertical direction or the first direction (X-axis direction). Alternatively, the third board side portion 1154c may not be aligned with the second layer L2 and the third layer L3 in the vertical direction or the first direction (X-axis direction). The vertical direction may correspond to the first direction (X-axis direction), or the direction from the third board side portion 1153c toward the moving member 1130 above the third board side portion 1153c.

[0340] In addition, third coil terminals CN3a and CN3b may be provided on the third board side portion 1152c. For example, the third coil terminals CN3a and CN3b may be positioned on the third board side portion 1152c or on the inner surface of the first layer L1. Further, the third coil terminals CN3a and CN3b may be respectively connected to both ends of the third coil 1152c. In addition, the third coil terminals CN3a and CN3b may be electrically connected to the driver IC DI or an external connector.

[0341] In addition, the first coil terminals CN1a and CN1b can be positioned inside the first board side portion 1154a. Additionally, the second coil terminals CN2a and CN2b can be positioned inside the second board side portion 1154b. The first coil terminals CN1a and CN1b and the second coil terminals CN2a and CN2b can overlap each other in the second direction. Therefore, since resistance is uniformly generated due to the electrical connection, the electrical characteristics of the camera actuator can be improved.

[0342] Furthermore, a plurality of first coil terminals CN1a and CN1b can be formed. Any one of the plurality of first coil terminals can be connected to any one of the plurality of second coil terminals. For example, any one of the first coil terminals CN1b that overlap in the second direction can be connected to any one of the second coil terminals CN2b. With this configuration, the rotation of the holder can be accurately performed by the first coil 1152a and the second coil 1152b.

[0343] In addition, the first board side portion 1154a can include an extension portion 1154p that does not overlap with the second board side portion 1154b in the second direction. The extension portion 1154p can include an exposed area EA. Moreover, the width W1 of the extension portion 1154p in the first direction can be greater than the width W2 of the area other than the extension portion 1154p. Therefore, it is possible to easily ensure a space for connecting the terminals EN1 to EN7.

[0344] In addition, as described above, the connection terminals EN1 to EN7 can be positioned at the ends of the outer surface of the first board side portion 1154a. Additionally, a plurality of nodes N1 to N7 can be positioned adjacent to the connection terminals EN1 to EN7. Each of the plurality of nodes N1 to N7 can correspond to each of the connection terminals EN1 to EN7. For example, the number of nodes and the number of connection terminals can be the same. Moreover, the electrically connected nodes and connection terminals can be positioned adjacent to each other.

[0345] Additionally, the third board side portion 1154c can include a first edge 1154c1s and a second edge 1154c2s that face each other in the third direction. The third coil 1152c can be positioned in the region between the first edge 1154c1s and the second edge 1154c2s. In this case, the distance L4 between the third coil 1152c and the first edge 1154c1s can be less than the distance L5 between the third coil 1152c and the second edge 1154c2s. That is, the third coil 1152c can be positioned adjacent to the first edge 1154c1s. Additionally, the third coil 1152c can be arranged not to be aligned with the center of the third board side portion 1154c. Additionally, the third coil 1152c can be arranged to be offset from the center of the third board side portion 1154c in the optical axis direction.

[0346] In addition, as described above, the third board side portion 1154c can be formed by the first layer L1. In this case, the third board side portion 1154c can be a flexible printed circuit board (FPCB).

[0347] In addition, the second board side portion 1154b and the first board side portion 1154a can include a second layer L2 and / or a third layer L3 in addition to the first layer L1. Alternatively, as will be described below, the first board side portion 1154a and the second board side portion 1154b can be formed of a rigid-flexible PCB (RFPCB) or an FPCB according to the region. With this configuration, the first board side portion 1154a and the second board side portion 1154b can be formed of an RFPCB. That is, the strength and heat resistance of the first board side portion 1154a and the second board side portion 1154b can be increased due to the addition of the second layer or the third layer. Therefore, the occurrence of failures in which the output value of the attitude detection sensor changes due to external shock or heat generated by the coil can be reduced. In addition, the reliability of the first board portion 1154 can be improved.

[0348] Refer to Figure 10j and Figure 10k , Figure 10j show the output values (corresponding to data) in response to shocks of the attitude detection sensor with respect to the X-axis Gyro_DC_X or the Y-axis Gyro_DC_Y when the second layer or the third layer is made of a layer other than the layer made of FR-5. Figure 10k show the output values in response to shocks of the attitude detection sensor with respect to the X-axis or the Y-axis when the second layer or the third layer includes a layer made of FR-5.

[0349] That is, since the second layer and the third layer are positioned on the first board side portion and the second board side portion, the fluctuation range of the output value in response to shock can be reduced. The output value can be a direct current (DC) offset value. Therefore, the reliability and accuracy of the attitude detection sensor can be improved.

[0350] Refer to Figure 10l and Figure 10m , in the camera actuator according to the embodiment, the second layer L2 and the third layer L3 can be provided on at least one of the first board side portion 1154a and the second board side portion 1154b. In the camera actuator according to another embodiment, the third layer L3 can be positioned on at least one of the first board side portion 1154a and the second board side portion 1154b. For example, the third layer L3 can be positioned on the second board side portion 1154b. In addition, the third board side portion 1154c can include only the first layer L1.

[0351] Accordingly, the first plate portion 1154 may include a third layer L3 in contact with the attitude detection sensor GS. The third layer L3 may be positioned between the attitude detection sensor GS and the first layer L1 on the second plate side portion 1154b. Accordingly, the weight of the first plate portion may be reduced while minimizing the change in the output value in response to the impact of the attitude detection sensor GS.

[0352] Referring Figure 10n and Figure 10o , in the camera actuator according to the embodiment, the second layer L2 and the third layer L3 may be provided on at least one of the first plate side portion 1154a and the second plate side portion 1154b. In the camera actuator according to another embodiment, the third layer L3 may be positioned on at least one of the first plate side portion 1154a and the second plate side portion 1154b. For example, the third layer L3 may be positioned on the second plate side portion 1154b.

[0353] In addition, the second layer L2 may be provided on at least one of the first plate side portion 1154a and the second plate side portion 1154b. For example, the second layer L2 may be positioned on the first plate side portion 1154a and the second plate side portion 1154b. In addition, the third plate side portion 1154c may include only the first layer L1.

[0354] Accordingly, the second plate side portion 1154b of the first plate portion 1154 may include a third layer L3 in contact with the attitude detection sensor GS. In addition, the third layer L3 may be positioned between the attitude detection sensor GS and the first layer L1 on the second plate side portion 1154b.

[0355] In addition, the second layer L2 may be positioned between the second coil 1152b and the first layer L1 on the second plate side portion 1154b. Accordingly, the change in the output value in response to the impact of the attitude detection sensor GS may be minimized. In addition, the heat generated from the second coil may also be absorbed by the second layer L2. Accordingly, the reliability of the camera actuator and the camera module according to this embodiment may be improved.

[0356] In addition, the second layer L2 may be positioned between the first coil 1152a and the first layer L1 on the first plate side portion 1154a. Accordingly, the change in the output value in response to the impact of the attitude detection sensor GS may be minimized. However, the third layer L3 may not be provided outside the first layer L1 on the first plate side portion 1154a. Accordingly, the weight of the first plate portion may be reduced. In addition, the heat generated from the second coil may be absorbed by the second layer L2. Accordingly, the reliability of the camera actuator and the camera module according to this embodiment may be improved.

[0357] Referring Figure 10p andFigure 10q In the camera actuator according to the embodiment, the second layer L2 and the third layer L3 may be disposed on at least one of the first plate side portion 1154a and the second plate side portion 1154b. In the camera actuator according to another embodiment, the third layer L3 may be positioned on at least one of the first plate side portion 1154a and the second plate side portion 1154b. For example, the third layer L3 may be positioned on the second plate side portion 1154b. Additionally, the third plate side portion 1154c may include only the first layer L1.

[0358] Additionally, the second layer L2 may be disposed on at least one of the first plate side portion 1154a and the second plate side portion 1154b. For example, the second layer L2 may be positioned on the first plate side portion 1154a and the second plate side portion 1154b. Additionally, the third plate side portion 1154c may include only the first layer L1.

[0359] In particular, the second layer L2 may be positioned to correspond to the drive coil to contact the drive coil. Additionally, the third layer L3 may be positioned to correspond to the attitude detection sensor GS. Thus, the third layer L3 may contact the attitude detection sensor.

[0360] That is, the second plate side portion 1154b of the first plate portion 1154 may include the third layer L3 that contacts the attitude detection sensor GS. Additionally, the third layer L3 may be positioned between the attitude detection sensor GS and the first layer L1 on the second plate side portion 1154b. Additionally, the second layer L2 may be positioned between the second coil 1152b and the first layer L1 on the second plate side portion 1154b. Thus, the change in the output value in response to the impact of the attitude detection sensor GS can be minimized. Additionally, the heat generated from the second coil can be absorbed by the second layer L2. Thus, the reliability of the camera actuator and the camera module according to this embodiment can be improved.

[0361] Additionally, the second layer L2 may be positioned between the first coil 1152a and the first layer L1 on the first plate side portion 1154a. However, as described above, the second layer L2 may be positioned to overlap the first coil 1152a in the horizontal direction. That is, the second layer L2 may be positioned to contact the first coil 1152a or correspond to the first coil 1152a. Thus, the change in the output value in response to the impact of the attitude detection sensor GS can be minimized. However, the third layer L3 may not be disposed outside the first layer L1 on the first plate side portion 1154a. Thus, the weight of the first plate portion can be reduced. Additionally, the heat generated from the second coil can be absorbed by the second layer L2. Thus, the reliability of the camera actuator and the camera module according to this embodiment can be improved.

[0362] Figure 11a is a perspective view of a first camera actuator according to an embodiment, Figure 11b is along Figure 11a a view of the first camera actuator along the line P-P', and Figure 11c is along Figure 11a View of the first camera actuator along line Q-Q'.

[0363] Reference Figures 11a to 11c , the first coil 1152a can be positioned on the first housing side portion 1121, and the first magnet 1151a can be positioned on the first holder outer surface 1131S1 of the holder 1131. Therefore, the first coil 1152a and the first magnet 1151a can be positioned to face each other. At least a portion of the first magnet 1151a can overlap with the first coil 1152a in the second direction (Y-axis direction).

[0364] In addition, the second coil 1152b can be positioned on the second housing side portion 1122, and the second magnet 1151b can be positioned on the second holder outer surface 1131S2 of the holder 1131. Therefore, the second coil 1152b and the second magnet 1151b can be positioned to face each other. At least a portion of the second magnet 1151b can overlap with the second coil 1152b in the second direction (Y-axis direction).

[0365] In addition, the first coil 1152a and the second coil 1152b may overlap in the second direction (Y-axis direction), and the first magnet 1152a and the second magnet 1151b may overlap in the second direction (Y-axis direction).

[0366] With this configuration, the electromagnetic force applied to the outer surfaces of the holder (the first holder outer surface and the second holder outer surface) can be positioned on an axis parallel to the second direction (Y-axis direction), and thus X-axis tilting can be performed accurately and precisely.

[0367] In addition, the second protrusions PR2a and PR2b of the tilting guide portion 1141 may contact the first member 1126 of the first housing 1120. The second protrusion PR2 may be seated in a second protrusion groove PH2 formed in one side surface of the first member 1126. In addition, when performing X-axis tilting, the second protrusions PR2a and PR2b may be a reference axis (or rotation axis) of the tilting. Therefore, the tilting guide portion 1141 and the moving member 1130 may move in the second direction.

[0368] In addition, as described above, the first hall sensor 1153a may be positioned at the outside to be electrically connected and coupled to the first plate portion 1154. However, the present disclosure is not limited to such a position.

[0369] In addition, the third coil 1152c may be positioned on the third housing side portion 1123, and the third magnet 1151c may be positioned on the third holder outer surface 1131S3 of the holder 1131. At least some portions of the third coil 1152c and the third magnet 1151c may overlap in the first direction (X-axis direction). Therefore, the intensity of the electromagnetic force between the third coil 1152c and the third magnet 1151c can be easily controlled.

[0370] As described above, the inclined guide portion 1141 may be positioned on the fourth holder outer surface 1131S4 of the holder 1131. In addition, the inclined guide portion 1141 may be seated in the fourth seating groove 1131S4a of the fourth holder outer surface. As described above, the fourth seating groove 1131S4a may include a first region AR1, a second region AR2, and a third region AR3.

[0371] The second member 1131a may be disposed in the first region AR1, and the second member 1131a may include a first groove gr1 formed on the inner surface of the second member 1131a. In addition, as described above, the second magnetic portion 1142 may be disposed in the first groove gr1, and the repulsive force RF2 generated by the second magnetic portion 1142 may be transmitted to the fourth seating groove 1131S4a of the holder 1131 through the second member 1131a (RF2’). Therefore, the holder 1131 can apply a force to the inclined guide portion 1141 in the same direction as the repulsive force RF2 generated by the second magnetic portion 1142.

[0372] 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. In addition, the first member 1126 may include a second protrusion groove PH2 provided on the surface corresponding to the second groove gr2. In addition, the repulsive force RF1 generated by the first magnetic portion 1143 may be applied to the first member 1126. Therefore, the first member 1126 and the second member 1131a can press the inclined guide portion 1141 disposed between the first member 1126 and the holder 1131 by the generated repulsive forces RF1 and RF2’. Therefore, even after the holder is tilted with respect to the X-axis or Y-axis by the current applied to the first coil, the second coil, or the third coil 1152c, the coupling (or position) between the holder 1131, the first housing 1120, and the inclined guide portion 1141 can be maintained.

[0373] The tilt guiding portion 1141 may be provided in the third region AR3. As described above, the tilt guiding portion 1141 may include a first protrusion PR1 and a second protrusion PR2. In this case, the first protrusion PR1 and the second protrusion PR2 may also be provided on the second surface 1141b and the first surface 1141a of the base BS, respectively. As described above, even in another embodiment to be described below, the first protrusion PR1 and the second protrusion PR2 may be differently positioned on the facing surfaces of the base.

[0374] The first protrusion groove PH1 may be positioned in the fourth seating groove 1131S4a. Additionally, the first protrusion PR1 of the tilt guiding portion 1141 may be received in the first protrusion groove PH1. Thus, the first protrusion PR1 may be in contact with the first protrusion groove PH1. The maximum diameter of the first protrusion groove PH1 may correspond to the maximum diameter of the first protrusion PR1. This may be applied in the same way to the second protrusion groove PH2 and the second protrusion PR2. With this configuration, the first axis tilt may be easily performed based on the first protrusion PR1, the second axis tilt may be easily performed based on the second protrusion PR2, and the radius of the tilt may be improved.

[0375] Additionally, the tilt guiding 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 thus the tilt guiding 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 third coil 1152c or the third magnet 1151c in the first direction (X-axis direction). That is, in the camera actuator according to the embodiment, each protrusion serving as the central axis of the tilt may be positioned adjacent to the center of gravity of the moving member 1130. Thus, the tilt guiding portion may be positioned adjacent to the center of gravity of the holder. Therefore, the camera actuator according to the embodiment may minimize the torque value for tilting the holder and also minimize the consumption of the current applied to the coil or the like to tilt the holder, thereby improving power consumption and device reliability.

[0376] In addition, the second magnetic portion 1142 and the first magnetic portion 1143 may not overlap with the third coil 1152c or the optical member 1132 in the first direction (X-axis direction). That is, in the embodiment, the second magnetic portion 1142 and the first magnetic portion 1143 may be arranged to be spaced apart from the third coil 1152c or the optical member 1132 in the third direction (Z-axis direction). Therefore, the magnetic force transmitted from the second magnetic portion 1142 and the first magnetic portion 1143 to the third coil 1152c can be minimized. Accordingly, the camera actuator according to this embodiment can easily perform vertical driving (Y-axis tilt) and can minimize power consumption.

[0377] In addition, as described above, the second Hall sensor 1153b positioned inside the third coil 1152c can detect a change in magnetic flux and thereby perform position sensing between the third magnet 1151c and the second Hall sensor 1153b. In this case, the offset voltage of the second Hall sensor 1153b may change according to the influence of the magnetic field generated by the second magnetic portion 1142 and the first magnetic portion 1143.

[0378] The first camera actuator according to the embodiment includes a second member 1131a, a second magnetic portion 1142, a first magnetic portion 1143, a first member 1126, an inclination guide portion 1141, and a holder 1131 that may be arranged in sequence based on its outermost surface. However, since the second magnetic portion is positioned in the second member and the first magnetic portion is positioned in the first member, the second member, the first member, the inclination guide portion, and the holder may be arranged in sequence.

[0379] In addition, in the embodiment, the distance by which the second magnetic portion 1142 and the first magnetic portion 1143 are spaced apart from the holder 1131 (or the optical member 1132) in the third direction may be greater than the distance between the inclination guide portions 1141. Accordingly, the second Hall sensor 1153b below the holder 1131 may also be arranged to be spaced apart from the second magnetic portion 1142 and the first magnetic portion 1143 by a predetermined distance. Therefore, the influence of the magnetic field generated by the second magnetic portion 1142 and the first magnetic portion 1143 on the second Hall sensor 1153b can be minimized, thereby preventing the Hall voltage from concentrating to a positive or negative value and saturating. That is, such a configuration can allow the Hall electrode to have a range in which Hall calibration can be performed. In addition, the temperature is also affected by the electrodes of the Hall sensor and the resolution of the camera lens varies according to the temperature. However, in the embodiment, it is possible to prevent the Hall voltage from concentrating to a positive or negative value, thereby correspondingly compensating for the resolution of the lens and easily preventing a reduction in resolution.

[0380] In addition, a circuit for compensating for an offset with respect to the output (i.e., Hall voltage) of the second Hall sensor 1153b can be easily designed.

[0381] In addition, according to an embodiment, some regions of the inclined guide portion 1141 with respect to the fourth holder outer surface of the holder 1131 may be positioned outside the fourth holder outer surface.

[0382] In addition to the first protrusion PR1 and the second protrusion PR2, the inclined guide portion 1141 may be seated on the fourth seating groove 1131S4a based on the base portion. That is, the length of the base portion in the third direction (Z-axis direction) may be smaller than the length of the fourth seating groove 1131S4a in the third direction (Z-axis direction). With this configuration, miniaturization can be achieved.

[0383] In addition, the maximum length of the inclined guide portion 1141 in the third direction (Z-axis direction) may be greater than the length of the fourth seating groove 1131S4a in the third direction (Z-axis direction). Therefore, as described above, the end portion of the second protrusion PR2 may be positioned between the fourth holder outer surface and the first member 1126. That is, at least a part of the second protrusion PR2 may be positioned in a direction opposite to the third direction (Z-axis direction) compared to the holder 1131. That is, the holder 1131 may be spaced apart from the end portion (the portion in contact with the second protrusion groove) of the second protrusion PR2 by a predetermined distance in the third direction (Z-axis direction).

[0384] In addition, the front surface 1131aes of the second member 1131a according to an embodiment may be spaced apart from the front surface 1126es of the first member 1126. In particular, the front surface 1131aes of the second member 1131a according to an embodiment may be positioned in the third direction (Z-axis direction) with respect to the front surface 1126es of the first member 1126. Alternatively, the front surface 1131aes of the second member 1131a according to an embodiment may be positioned inside the front surface 1126es of the first member 1126. To this end, the first member 1126 may have a structure that extends inward and is curved. In addition, some regions of the second member 1131a may be positioned in a groove formed by the above-described extended and curved structure of the first member 1126.

[0385] With this configuration, since the second member 1131a is positioned inside the first member 1126, space efficiency can be improved and miniaturization can be achieved. In addition, even when driving (tilting or rotating the moving member 1130) by electromagnetic force is performed, the second member 1131a does not protrude to the outside of the first member 1126, and thus contact with nearby devices can be blocked. Therefore, reliability can be improved.

[0386] In addition, a predetermined separation space may exist between the second magnetic part 1142 and the first magnetic part 1143. That is to say, the second magnetic part 1142 and the first magnetic part 1143 may face each other with the same polarity.

[0387] Figure 12a is a perspective view of a first camera actuator according to an embodiment, Figure 12b is along Figure 12a a view of the first camera actuator along line S-S' in Figure 12c and Figure 12b is an exemplary view showing the movement of the first camera actuator shown in

[0388] Referring to Figures 12a to 12c , Y-axis tilting may be performed by the first camera actuator according to the embodiment. That is to say, OIS may be achieved by rotating the first camera actuator in the first direction (X-axis direction).

[0389] In the embodiment, a third magnet 1151c disposed below the holder 1131 may generate an electromagnetic force with a third coil 1152c to tilt or rotate the moving member 1130 with respect to the second direction (Y-axis direction).

[0390] Specifically, the repulsive force between the second magnetic part 1142 and the first magnetic part 1143 may be transmitted to the second member 1131a and the first member 1126 and finally transmitted to the tilt guiding part 1141 disposed between the first member 1126 and the holder 1131. Therefore, the tilt guiding part 1141 may be pressed by the moving member 1130 and the first housing 1120 by the above-mentioned repulsive force.

[0391] In addition, the second protrusion PR2 may be supported by the first member 1126. In this case, in the embodiment, the tilt guiding part 1141 may rotate or tilt based on the second protrusion PR2 protruding toward the first member 1126 as a reference axis (or rotation axis), that is, rotate or tilt in the second direction (Y-axis direction). That is to say, the tilt guiding part 1141 may rotate or tilt in the first direction (X-axis direction) based on the second protrusion PR2 protruding toward the first member 1126 as a reference axis (or rotation axis).

[0392] For example, OIS may be achieved by rotating the moving member 130 at a first angle θ1 in the X-axis direction (X1→X1a) by the first electromagnetic forces F1A and F1B between the third magnet 1151c disposed in the third seating groove and the third coil 1152c disposed on the third plate side portion.

[0393] Conversely, OIS can be achieved by rotating the moving member 130 by a first angle θ1 in a direction opposite to the X-axis direction (X1→X1b) by means of first electromagnetic forces F1A and F1B between a third magnet 1151c disposed in a third seating groove and a third coil 1152c disposed on a third plate side portion.

[0394] The first angle θ1 can be in the range of ±1° to ±3°. However, the present disclosure is not limited thereto.

[0395] Hereinafter, in a first camera actuator according to various embodiments, the electromagnetic force can move the moving member by generating a force in the direction, or can move the moving member in the direction even when a force is generated in another direction. That is, the direction of the electromagnetic force refers to the direction of the force generated by the magnet and the coil for moving the moving member. For example, the first electromagnetic forces F1A and F1B can act in a third direction or in a direction opposite to the third direction.

[0396] In addition, the center MC1 of the second magnetic portion 1142 and the center MC2 of the first magnetic portion 1143 can be arranged side by side in a third direction (Z-axis direction). That is, a center line TL1 connecting the center MC1 of the second magnetic portion 1142 and the center MC2 of the first magnetic portion 1143 can be parallel to the third direction (Z-axis direction).

[0397] In addition, a bisector TL2 that bisects the second protrusion PR2 and corresponds to the third direction (Z-axis direction) can be parallel to the center line TL1 (or the bisector). That is, the bisector TL2 can be a line that bisects the second protrusion PR2 in a first direction (X-axis direction), and a plurality of bisectors TL2 can be formed.

[0398] In an embodiment, the bisector TL2 can be arranged to be spaced apart from the center line TL1 in a first direction (X-axis direction). The bisector TL2 can be positioned above the center line TL1. With this configuration, since the distance between the third coil 1152c and the third magnet 1151c can be increased, the holder can perform two-axis tilting more accurately. In addition, when no current is applied to the coil, the position of the holder can be maintained as well.

[0399] More specifically, since the center MC1 of the second magnetic part 1142 and the center MC2 of the first magnetic part 1143 are spaced apart from the bisector TL2 in the first direction (X-axis direction), a force (e.g., a repulsive force) between the second magnetic part 1142 and the first magnetic part 1143 can act at a certain distance spaced apart from the bisector TL2 corresponding to the optical axis in the first direction (X-axis direction). Additionally, momentum is generated in the moving member 1130 by this force. However, when the center MC1 of the second magnetic part 1142 and the center MC2 of the first magnetic part 1143 are positioned on the bisector TL2, there is the following problem: During the execution of calibration, the positions of the tilt guiding part and the second magnetic part 1142 are not maintained after tilting. That is, in the camera actuator according to the embodiment, since the center MC1 of the second magnetic part 1142 and the center MC2 of the first magnetic part 1143 are not provided on the bisector TL2, the positions of the tilt guiding part and the second magnetic part 1142 can be maintained after tilting or rotation.

[0400] In another embodiment, the center MC1 of the second magnetic part 1142 and the center MC2 of the first magnetic part 1143 can be arranged to be spaced apart from each other in the first direction (X-axis direction).

[0401] Additionally, the center MC1 of the second magnetic part 1142 and the center MC2 of the first magnetic part 1143 may not be positioned on the bisector TL2. For example, the center MC1 of the second magnetic part 1142 and the center MC2 of the first magnetic part 1143 may be positioned above the bisector TL2.

[0402] Therefore, since the spacing distance between the third coil 1152c and the third magnet 1151c increases, the holder can perform two-axis tilting more accurately. Moreover, when no current is applied to the coil, the position of the holder can be maintained equally.

[0403] Additionally, the second magnetic part 1142 and the first magnetic part 1143 can have different lengths in the first direction (X-axis direction).

[0404] In an embodiment, the area of the second magnetic portion 1142 that is coupled to the second member 1131a and is inclined together with the moving member 1130 may be larger than the area of the first magnetic portion 1143. For example, the length of the second magnetic portion 1142 in the first direction (X-axis direction) may be larger than the length of the first magnetic portion 1143 in the first direction (X-axis direction). Additionally, the length of the second magnetic portion 1142 in the second direction (Y-axis direction) may be larger than the length of the first magnetic portion 1143 in the second direction (Y-axis direction). Additionally, the first magnetic portion 1143 may be positioned in a virtual straight line along which two end portions of the second magnetic portion 1142 extend in a third direction.

[0405] With this configuration, even when a magnetic portion (e.g., the second magnetic portion) on one side is inclined during inclination or rotation, it is possible to easily prevent a force other than the vertical force from being generated due to the inclination. That is, even when the second magnetic portion is vertically inclined together with the moving member 1130, the second magnetic portion may not receive a force (e.g., a repulsive force or an attractive force) that resists the inclination from the first magnetic portion 1143. Therefore, the driving efficiency can be improved.

[0406] Figure 13a is along Figure 12a a view of the first camera actuator along line R-R' in Figure 13b and Figure 13a is an exemplary view of the movement of the first camera actuator shown in

[0407] Referring to Figure 13a and Figure 13b , X-axis inclination can be performed. That is, OIS can be achieved by inclining or rotating the moving member 1130 in the Y-axis direction.

[0408] In an embodiment, the first magnet 1151a and the second magnet 1151b provided on the holder 1131 may generate electromagnetic forces with the first coil 1152a and the second coil 1152b, respectively, and incline or rotate the inclination guide portion 1141 and the moving member 1130 with respect to the first direction (X-axis direction).

[0409] Specifically, the repulsive force between the second magnetic portion 1142 and the first magnetic portion 1143 may be transmitted to the first member 1126 and the holder 1131 and ultimately transmitted to the inclination guide portion 1141 provided between the holder 1131 and the first member 1126. Therefore, the inclination guide portion 1141 may be pressed by the moving member 1130 and the first housing 1120 by the above-mentioned repulsive force.

[0410] In addition, the 1-1 protrusion PR1a and the 1-2 protrusion PR1b can be spaced apart from each other in the first direction (X-axis direction), and are supported by the first protrusion groove PH1 formed in the fourth seating groove 1131S4a of the holder 1131. In addition, in the embodiment, the tilt guiding portion 1141 can rotate or tilt based on the first protrusion PR1 protruding toward the holder 1131 (e.g., in the third direction) as a reference axis (or rotation axis), that is, rotate or tilt in the first direction (X-axis direction).

[0411] For example, OIS can be achieved by rotating the moving member 130 at a second angle θ2 in the Y-axis direction (Y1→Y1a) by means of the second electromagnetic forces F2A and F2B between the first magnet 1151a and the second magnet 1151b provided in the first seating groove and the first coil 1152a and the second coil 1152b provided on the first plate side portion and the second plate side portion. In addition, OIS can be achieved by rotating the moving member 130 at a second angle θ2 in the Y-axis direction (Y1→Y1b) by means of the second electromagnetic forces F2A and F2B between the first magnet 1151a and the second magnet 1151b provided in the first seating groove and the first coil 1152a and the second coil 1152b provided on the first plate side portion and the second plate side portion. The first angle θ2 can be in the range of ±1° to ±3°. However, the present disclosure is not limited thereto.

[0412] In addition, as described above, the electromagnetic force generated by the first magnet 1151a and the second magnet 1151b and the first coil 1152a and the second coil 1152b can act in the third direction or in the direction opposite to the third direction. For example, the electromagnetic force can be generated on the left side of the moving member 1130 in the third direction (Z-axis direction), and act on the right side of the moving member 1130 in the direction opposite to the third direction (Z-axis direction). Therefore, the moving member 1130 can rotate relative to the first direction. Alternatively, the moving member 130 can move in the second direction.

[0413] As described above, the second camera actuator according to the embodiment can control the moving member 1130 to rotate along the first axis (X-axis direction) or the second axis (Y-axis direction) by the electromagnetic force between the drive magnet in the holder and the drive coil provided in the first housing, thereby minimizing the occurrence of eccentricity or tilt phenomena when implementing OIS and providing optimal optical characteristics. In addition, 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).

[0414] Figure 14 is a perspective view of the second camera actuator according to the embodiment, Figure 15Is an exploded perspective view of a second camera actuator according to an embodiment, Figure 16 is along Figure 14 a view of the second camera actuator along line D-D' in Figure 17a , Figure 17b and Figure 17c is a perspective view of a second housing in the second camera actuator according to an embodiment, Figure 18 and Figure 19 are views for describing each driving of a lens assembly according to an embodiment, and Figure 20 is a view for describing the driving of the second camera actuator according to an embodiment.

[0415] Referring to Figures 14 to 16 , the second camera actuator 1200 according to an embodiment may include a lens unit 1220, a second housing 1230, a second driving unit 1250, a rear end optical unit 1260, a second plate unit 1270, a coupling member 1280, a stopper unit ST, and a yoke unit YK. In addition, the second camera actuator 1200 may further include a second shield (not shown), an elastic unit (not shown), and a coupling member (not shown).

[0416] The second shield (not shown) may be positioned in an area (e.g., the outermost side) of the second camera actuator 1200 and positioned to surround components (the lens unit 1220, the second housing 1230, the second driving unit 1250, the rear end optical unit 1260, the second plate unit 1270, and the image sensor) to be described below.

[0417] In addition, the second camera actuator 1200 may be a member separated from an image sensor and a base member to be described below, or a concept including an image sensor and a base member. Hereinafter, the main board or circuit board 1300 separated from the second camera actuator 1200 will be described as including an image sensor and a base member.

[0418] The second shield (not shown) may block or reduce electromagnetic waves generated from the outside. Accordingly, the occurrence of failures in the second driving unit 1250 may be reduced.

[0419] The lens unit 1220 may be positioned in the second shield (not shown). The lens unit 1220 may move along a third direction (Z-axis direction or optical axis direction). Accordingly, the above-described AF function and zoom function may be performed.

[0420] In addition, the lens unit 1220 may be positioned in the second housing 1230. Accordingly, at least a part of the lens unit 1220 may move in the optical axis direction or the third direction (Z-axis direction) in the second housing 1230.

[0421] Specifically, the lens unit 1220 may include a lens group 1221 and a moving assembly 1222.

[0422] First, the lens group 1221 may include at least one lens. Additionally, although multiple lens groups 1221 may be formed, hereinafter, the description will be based on one lens group.

[0423] The lens group 1221 may be coupled to the moving assembly 1222 to move in a third direction (Z-axis direction) by an electromagnetic force generated by a fourth magnet 1252a and a fifth magnet 1252b coupled to the moving assembly 1222.

[0424] In an embodiment, the lens group 1221 may include a first lens group 1221a, a second lens group 1221b, and a third lens group 1221c. The first lens group 1221a, the second lens group 1221b, and the third lens group 1221c may be arranged in sequence along the optical axis direction. In addition, the lens group 1221 may further include a fourth lens group 1221d. The fourth lens group 1221d may be disposed at the rear end portion of the third lens group 1221c.

[0425] The first lens group 1221a may be fixedly coupled to the 2-1 housing. That is, the first lens group 1221a may not move in the optical axis direction.

[0426] The second lens group 1221b may be coupled to the first lens assembly 1222a to move in the third direction or the optical axis direction. Magnification adjustment may be performed by moving the first lens assembly 1222a and the second lens group 1221b.

[0427] The third lens group 1221c may be coupled to the second lens assembly 1222b to move in the third direction or the optical axis direction. Focus adjustment or autofocus may be performed by moving the third lens group 1221c.

[0428] However, the present disclosure is not limited to the number of lens groups, and the fourth lens group 1221d may not exist, or additional lens groups other than the fourth lens group 1121d may also be provided, etc.

[0429] The moving assembly 1222 may include an opening area surrounding the lens group 1221. The moving assembly 1222 and the lens assembly are used in an interchangeable manner. Additionally, the moving assembly 1222 may be coupled to the lens group 1221 by various methods. Additionally, the moving assembly 1222 may include a groove in a side surface of the moving assembly 1222 and may be coupled to the fourth magnet 1252a and the fifth magnet 1252b through the groove. A coupling member or the like may be applied to the groove.

[0430] In addition, the moving component 1222 may be coupled to an elastic unit (not shown) at the upper end portion and the rear end portion of the moving component 1222. Therefore, the moving component 1222 may be supported by the elastic unit (not shown) while moving in the third direction (Z-axis direction). That is, the position of the moving component 1222 may be maintained in the third direction (Z-axis direction). The elastic unit (not shown) may be formed of various elastic elements such as leaf springs.

[0431] The moving component 1222 may be positioned in the second housing 1230 and may include a first lens component 1222a and a second lens component 1222b.

[0432] The region where the third lens group is seated in the second lens component 1222b may be positioned at the rear end portion of the first lens component 1222a. That is, the region where the third lens group 1221c is seated in the second lens component 1222b may be positioned between the region where the second lens group 1221b is seated in the first lens component 1222a and the image sensor.

[0433] Each of the first lens component 1222a and the second lens component 1222b may be seated inside the 2-2 housing. For example, the concave portion provided with the spherical member in the first lens component 1222a may be positioned to face the first side portion. In addition, the concave portion provided with the spherical member in the second lens component 1222b may be positioned to face the second side portion. A detailed description thereof will be given below.

[0434] In addition, the second drive magnet may be seated on the outer surfaces of the first lens component 1222a and the second lens component 1222b. For example, the fifth magnet 1252b may be seated on the outer surface of the second lens component 1222b. The fourth magnet 1252a may be seated on the outer surface of the first lens component 1222a.

[0435] The second housing 1230 may be provided between the lens unit 1220 and a second shield (not shown). In addition, the second housing 1230 may be provided to surround the lens unit 1220.

[0436] The second housing 1230 may include a 2-1 housing 1231 and a 2-2 housing 1232. The 2-1 housing 1231 may be coupled to the first lens group 1221a and may also be coupled to the above-described first camera actuator. The 2-1 housing 1231 may be positioned in front of the 2-2 housing 1232.

[0437] In addition, the 2-2 housing 1232 may be positioned at the rear end portion of the 2-1 housing 1231. The lens unit 1220 may be seated inside the 2-2 housing 1232.

[0438] Holes may be formed in the side portion of the second housing 1230 (or the 2-2 housing 1232). The fourth coil 1251a and the fifth coil 1251b may be disposed in the holes. The holes may be positioned to correspond to the grooves of the moving assembly 1222.

[0439] In an embodiment, the second housing 1230 (specifically, the 2-2 housing 1232) may include a first side portion 1232a and a second side portion 1232b. The first side portion 1232a and the second side portion 1232b may be positioned to correspond to each other. For example, the first side portion 1232a and the second side portion 1232b may be symmetrically disposed 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. Additionally, the second plate unit 1270 may be seated on the outer surfaces of the first side portion 1232a and the second side portion 1232b. That is, the first plate 1271 may be positioned on the outer surface of the first side portion 1232a, and the second plate 1272 may be positioned on the outer surface of the second side portion 1232b. Additionally, the second housing 1230 may include a third side portion 1232c. In this case, the third side portion 1232c may be perpendicular to the optical axis. Additionally, the third side portion 1232c may be connected to the first side portion 1232a and the second side portion 1232b.

[0440] Furthermore, the third side portion 1232c may correspond to the outer surface of the second housing 1230 that is perpendicular to the optical axis. For example, the third side portion 1232c may correspond to the "first side surface".

[0441] Furthermore, the first side portion 1232a and the second side portion 1232b may correspond to the "second side surface" and the "third side surface" of the second housing 1230, respectively.

[0442] Therefore, the second side surface may be connected to the first side surface. The third side surface may also be connected to the first side surface. Additionally, the second side surface and the third side surface may be positioned to face each other. This may correspond to the positional relationship between the above-mentioned second side portion and the third side portion.

[0443] Additionally, as another example, the first guiding groove and the second guiding groove facing the recess of the first lens assembly 1222a (the seating groove in which the first spherical member and the second spherical member are seated) may be positioned in the first side portion. Additionally, the first guiding groove and the second guiding groove facing the recess of the second lens assembly 1222b may be positioned in the second side portion. In this case, there may be a structure in which a separate member (e.g., a guiding unit) including the first guiding groove and the second guiding groove is coupled to the 2-2 housing 1232. However, in an embodiment, an integral structure in which the first guiding groove and the second guiding groove are formed in the 2-2 housing 1232 will be described. Further, as in another example, the first guiding unit and the second guiding unit may be positioned to correspond to each other. For example, the first guiding unit and the second guiding unit may be positioned to face each other with respect to the third direction (Z-axis direction). Additionally, at least some portions of the first guiding unit and the second guiding unit may overlap each other in the second direction (Y-axis direction).

[0444] The first guiding unit and the second guiding unit may include at least one groove (e.g., a guiding groove) or a recess. Additionally, the first spherical member B1 or the second spherical member B2 may be seated in the groove or the recess. Accordingly, the first spherical member B1 or the second spherical member B2 may move in the third direction (Z-axis direction) in the guiding groove of the first guiding unit or the guiding groove of the second guiding unit.

[0445] Alternatively, the first spherical member B1 or the second spherical member B2 may move in the third direction along a track formed inside the first side portion 1232a of the second housing 1230 or a track formed inside the second side portion 1232b of the second housing 1230.

[0446] Accordingly, the first lens assembly 1222a and the second lens assembly 1222b may move in the third direction.

[0447] According to an embodiment, the first spherical member B1 may be disposed on the upper portion of the first lens assembly 1222a or the second lens assembly 1222b. Additionally, the second spherical member B2 may be disposed on the lower portion of the first lens assembly 1222a or the second lens assembly 1222b. For example, the first spherical member B1 may be positioned above the second spherical member B2. Accordingly, at least a portion of the first spherical member B1 may overlap the second spherical member B2 in the first direction (X-axis direction) depending on the position.

[0448] In addition, the 2-2 housing 1232 may include first guiding grooves GG1a and GG2a facing the first recess RS1. In addition, the 2-2 housing 1232 may include second guiding grooves GG1b and GG2b facing the second recess RS2. The first guiding grooves GG1a and GG2a and the second guiding grooves GG1b and GG2b may be grooves extending in the third direction (Z-axis direction). In addition, the first guiding grooves GG1a and GG2a and the second guiding grooves GG1b and GG2b may have different shapes. For example, the first guiding grooves GG1a and GG2a may be grooves having inclined side surfaces, and the second guiding grooves GG1b and GG2b may be grooves having side surfaces perpendicular to their lower surfaces.

[0449] The fourth magnet and the fourth coil may be positioned on the first side portion. In addition, the fifth magnet and the fifth coil may be positioned on the second side portion. In addition, the fifth magnet 1252b may be positioned to face the fifth coil 1251b. In addition, the fourth magnet 1252a may be positioned to face the fourth coil 1251a.

[0450] The elastic unit (not shown) may include a first elastic member (not shown) and a second elastic member (not shown). The first elastic member (not shown) may be coupled to the upper surface of the moving assembly 1222. The second elastic member (not shown) may be coupled to the lower surface of the moving assembly 1222. In addition, the first elastic member (not shown) and the second elastic member (not shown) may be formed of a leaf spring as described above. In addition, the first elastic member (not shown) and the second elastic member (not shown) may provide elasticity for moving the moving assembly 1222. However, the present disclosure is not limited to the above positions, and the elastic unit may be provided at various positions.

[0451] In addition, the second driving unit 1250 may provide a driving force for moving the lens unit 1220 in the third direction (Z-axis direction). The second driving unit 1250 may include a second driving coil 1251 and a second driving magnet 1252. In addition, the second driving unit 1250 may further include a second Hall sensor portion. The second Hall sensor portion 1253 may include at least one fourth Hall sensor 1253a and may be positioned inside or outside the second driving coil 1251.

[0452] The moving assembly may move in the third direction (Z-axis direction) by an electromagnetic force generated between the second driving coil 1251 and the second driving magnet 1252.

[0453] The second drive coil 1251 may include a fourth coil 1251a and a fifth coil 1251b. The fourth coil 1251a and the fifth coil 1251b may be disposed in holes formed in a side portion of the second housing 1230. Additionally, the fourth coil 1251a and the fifth coil 1251b may be electrically connected to the second board unit 1270. Accordingly, the fourth coil 1251a and the fifth coil 1251b may receive current or the like through the second board unit 1270.

[0454] The drive magnet 1252 may include a fourth magnet 1252a and a fifth magnet 1252b. The fourth magnet 1252a and the fifth magnet 1252b may be disposed in the above-described grooves of the moving assembly 1222 and positioned to correspond to the fourth coil 1251a and the fifth coil 1251b.

[0455] The rear-end optical unit 1260 may include a lens such as glass.

[0456] The base unit or the base member of the circuit board may be positioned between the lens unit 1220 and the image sensor IS. A component such as a filter may be fixed to the base member. Additionally, the base member may be provided to surround the above-described image sensor. With this configuration, since the image sensor is protected from foreign substances or the like, the reliability of the device may be improved. However, some of the following drawings will be described without the above description. However, the present disclosure may not be limited to this structure.

[0457] Additionally, the second camera actuator 1200 may be a zoom actuator or an AF actuator. For example, the second camera actuator 1200 may support one lens or a plurality of lenses and perform at least one of an AF function or a zoom function by moving the lens according to a predetermined control signal of the controller.

[0458] Additionally, the second camera actuator may be a fixed zoom or a continuous zoom. For example, the second camera actuator may provide the movement of the lens group 1221.

[0459] In addition, the second camera actuator may be formed of multiple lens components. For example, at least one of a third lens component (not shown) and a guide pin (not shown) may be provided in the second camera actuator in addition to the first lens component 1222a and the second lens component 1222b. In this regard, the above may be applied. Thus, the second camera actuator may perform a high-magnification zoom function through the second driving unit. For example, the first lens component 1222a and the second lens component 1222b may be movable lenses that are moved through the second driving unit and a guide pin (not shown), and the third lens component (not shown) may be a fixed lens, but the present disclosure is not limited thereto. For example, the third lens component (not shown) may perform the function of a focusing device through which light forms an image at a specific position, and the first lens component may perform the function of a converter for reforming the image formed by the third lens component (not shown) acting as the focusing device at another position. Meanwhile, since the distance to the object or the image distance changes greatly, the first lens component may be in a state of large magnification change, and the first lens component acting as the converter may play an important role in terms of the change in the focal length or magnification of the optical system. Meanwhile, the imaging point of the image formed by the first lens component acting as the converter may be slightly different according to the position. Thus, the second lens component may perform a position compensation function for the image formed by the converter. For example, the second lens component may use the imaging point of the image formed by the second lens component 1222b acting as the converter to perform the function of a compensator for accurately forming an image at the actual position of the image sensor. However, the configuration of the embodiment will be described with reference to the following drawings.

[0460] The image sensor may be positioned inside or outside the second camera actuator. In an embodiment, as illustrated, the image sensor may be positioned outside the second camera actuator. For example, the image sensor may be positioned on a circuit board. The image sensor may receive light and convert the received light into an electrical signal. In addition, the image sensor may include a plurality of pixels in an array form. In addition, the image sensor may be positioned on the optical axis.

[0461] The second plate unit 1270 may be in contact with the second housing side portion. For example, the second plate unit 1270 may be positioned on the outer surfaces (first side surface and second side surface) of the first side portion and the second side portion of the second housing, specifically the 2-2 housing, and may be in contact with the first side surface and the second side surface.

[0462] The stopper unit ST includes a first stopper ST1 provided at one end of the 2-2 housing 1232 and a second stopper ST2 provided at the other end of the 2-2 housing 1232. The first stopper ST1 and the second stopper ST2 may be arranged in order along the optical axis direction.

[0463] In addition, a plurality of first stoppers ST1 can be formed, and the plurality of first stoppers ST1 can be respectively disposed on the movement paths of the first lens unit and the second lens unit. For convenience, the 1-1 stopper ST1a and the 1-2 stopper ST1b will be described. Similarly, a plurality of second stoppers ST2 can be formed, and the plurality of second stoppers ST2 can be respectively disposed on the movement paths of the first lens unit and the second lens unit. In addition, the 2-1 stopper ST2a and the 2-2 stopper ST2b will be described.

[0464] The 1-1 stopper ST1a and the 2-1 stopper ST2a can be positioned on the movement path of the first lens unit. The 1-2 stopper ST1b and the 2-2 stopper ST2b can be positioned on the movement path of the second lens unit.

[0465] The 1-1 stopper ST1a and the 1-2 stopper ST1b can overlap in the second direction. Alternatively, the 1-1 stopper ST1a and the 1-2 stopper ST1b can be misaligned in the second direction.

[0466] In addition, the 2-1 stopper ST2a and the 2-2 stopper ST2b can be positioned to be misaligned in the second direction. The distance in the third direction between the 1-1 stopper ST1a and the 2-1 stopper ST2a can be less than the distance between the 1-2 stopper ST1b and the 2-2 stopper ST2b. This is a configuration reflecting that the movable distance (stroke) of the first lens unit is less than the movable distance (stroke) of the second lens unit.

[0467] In an embodiment, the second yoke unit or the yoke unit YK can be disposed outside the second driving unit, and for example, the yoke unit YK can be disposed outside the fourth coil and the fifth coil. The second yoke unit can include a first yoke YK1 and a second yoke YK2.

[0468] The first yoke YK1 and the second yoke YK2 can be disposed opposite to each other. For example, the first yoke YK1 and the second yoke YK2 can be positioned corresponding to each other with respect to the optical axis.

[0469] The first yoke YK1 can be positioned adjacent to the fourth coil 1251a. The second yoke YK2 can be positioned adjacent to the fifth coil 1251b. The fourth coil 1251a and the fifth coil 1251b can be positioned inside the first yoke YK1 and the second yoke YK2. Additionally, the first yoke YK1, the fourth coil 1251a, the fifth coil 1251b, and the second yoke YK2 can be arranged in sequence along one direction (e.g., the second direction). The first yoke YK1 can generate an attractive force with the fourth magnet. Additionally, the second yoke YK2 can generate an attractive force with the fifth magnet. Therefore, the attitude holding of the first lens assembly and the second lens assembly can be performed.

[0470] Furthermore, the thicknesses of the first yoke YK1 and the second yoke YK2 can vary in some regions. With this configuration, the influence of the magnetic force generated by the fourth magnet and the fifth magnet or the fourth coil and the fifth coil on another magnet or coil can be suppressed. For example, the first yoke YK1 can suppress the magnetic force generated by the fourth magnet from being applied to the fifth magnet and the fifth coil.

[0471] Referring to Figure 17a , Figure 17b and Figure 17c , as described above, the second housing 1230 (specifically, the 2-2 housing 1232) can include a first side portion 1232a and a second side portion 1232b. The first side portion 1232a and the second side portion 1232b can be positioned to correspond to each other. For example, the first side portion 1232a and the second side portion 1232b can be symmetrically arranged with respect to the third direction. The second drive coil can be positioned on the first side portion 1232a and the second side portion 1232b. Additionally, the second plate unit can be seated on the outer surfaces of the first side portion 1232a and the second side portion 1232b. The second plate unit can be positioned outside the drive coil and electrically connected to the drive coil.

[0472] For example, the first plate can be positioned on the outer surface of the first side portion 1232a, and the second plate can be positioned on the outer surface of the second side portion 1232b.

[0473] Furthermore, the first guide grooves GG1a and GG1b in which the first spherical member and the second spherical member are seated can be positioned in the inner surface of the first side portion 1232a. The first guide grooves GG1a and GG1b can face the above-mentioned first recess and second recess. Similarly, the second guide grooves GG2a and GG2 in which the first spherical member and the second spherical member are seated can be positioned in the inner surface of the second side portion 1232b. The first guide grooves GG1a and GG1b can face the above-mentioned first recess and second recess.

[0474] In addition, the first side portion 1232a may include a first side portion hole 1232ah. The fourth magnet may be positioned in the first side portion hole 1232ah. In addition, the length of the first side portion hole 1232ah in the first direction may be less than the length of the first coil in the first direction.

[0475] In addition, the second side portion 1232b may include a second side portion hole 1232bh. The fifth magnet may be positioned in the second side portion hole 1232bh. In addition, the length of the second side portion hole 1232bh in the first direction may be less than the length of the fifth coil in the first direction.

[0476] In addition, the 2-2 housing 1232 may include a housing hole 1232h provided in one of the upper portion and the lower portion of the 2-2 housing. Coupling can be easily performed through the housing hole 1232h, or inspection (e.g., visual inspection) can be performed on the first lens assembly and the second lens assembly.

[0477] In addition, the first guiding grooves GG1a and GG1b positioned on the first side portion 1232a may extend in the third direction. In addition, the first guiding grooves GG1a and GG1b may have different shapes. For example, any one of the first guiding grooves, GG1a, may be an inclined groove, and the other guiding groove GG1b may be a flat structure. This can also be applied in the same way to the second guiding grooves GG2a and GG2b. The first spherical member and the second spherical member may be seated in the inclined groove and the flat structure such that the first lens assembly or the second lens assembly can move in the optical axis direction.

[0478] Referring to Figure 18 and Figure 19 , in the camera device according to the embodiment, by generating an electromagnetic force DEM1 between the fourth magnet 1252a and the fourth coil 1251a, the first lens assembly 1222a can move in a direction parallel to the optical axis, i.e., in the third direction (Z-axis direction) or in a direction opposite to the third direction, along the track positioned on the inner surface of the housing through the first spherical member B1 and the second spherical member B2.

[0479] Specifically, in the camera device according to the embodiment, the fourth magnet 1252a may be provided in the first lens assembly 1222a, for example, by a vertical monopole magnetization method. For example, in the embodiment, both the N pole and the S pole of the fourth magnet 1252a may be positioned to face the fourth coil 1251a. Therefore, each of the N pole and the S pole of the fourth magnet 1252a may be set to correspond to the region where current flows from the fourth coil 1251a in the X-axis direction or in a direction opposite to the X-axis direction.

[0480] In an embodiment, when a magnetic force is applied from the N pole of the fourth magnet 1252a in a direction opposite to the second direction (Y-axis direction) and a current DE1 flows in the fourth coil 1251a corresponding to the N pole in a direction opposite to the first direction (X-axis direction), an electromagnetic force DEM1 can act in the third direction (Z-axis direction) according to the interaction of electromagnetic forces (e.g., Fleming's left-hand rule).

[0481] In addition, in an embodiment, when a magnetic force is applied from the S pole of the fourth magnet 1252a in the second direction (Y-axis direction) and a current DE1 flows in the fourth coil 1251a corresponding to the S pole in the first direction (X-axis direction), the electromagnetic force DEM1 can act in the Z-axis direction according to the interaction of electromagnetic forces.

[0482] At this time, since the fourth coil 1251a is in a state fixed to the side portion of the second housing, the first lens assembly 1222a provided with the fourth magnet 1252a thereon can move in a direction opposite to the Z-axis direction by the electromagnetic force DEM1 according to the current direction. That is, the second drive magnet can move in a direction opposite to the electromagnetic force applied to the second drive coil. In addition, the direction of the electromagnetic force can vary according to the current of the coil and the magnetic force of the magnet.

[0483] Therefore, the first lens assembly 1222a can move in the third direction or in a direction parallel to the optical axis direction (two directions) along a track positioned on the inner surface of the housing through the first spherical member B1 and the second spherical member B2. At this time, the electromagnetic force DEM1 can be controlled to be proportional to the current DE1 applied to the fourth coil 1251a.

[0484] The first lens assembly 1222a or the second lens assembly 1222b may include a first concave portion RS1 in which the first spherical member B1 is seated. In addition, the first lens assembly 1222a or the second lens assembly 1222b may include a second concave portion RS2 in which the second spherical member B2 is seated. The length of the first concave portion RS1 can be preset in the optical axis direction (Z-axis direction). In addition, the length of the second concave portion RS2 can be preset in the optical axis direction (Z-axis direction). Therefore, the moving distances of the first spherical member B1 and the second spherical member B2 can be adjusted in the optical axis direction in each concave portion. That is, the first concave portion RS1 or the second concave portion RS2 can be a stopper for the first spherical member B1 and the second spherical member B2.

[0485] In addition, in the camera device according to the embodiment, the fifth magnet 1252b may be provided on the second lens assembly 1222b by, for example, a vertical monopole magnetization method. For example, in the embodiment, both the N pole and the S pole of the fifth magnet 1252b may be positioned to face the fifth coil 1251b. Therefore, each of the N pole and the S pole of the fifth magnet 1252b may be set to correspond to a region where current flows in the X-axis direction or in the direction opposite to the X-axis direction from the fifth coil 1251b.

[0486] In the embodiment, when a magnetic force DM2 is applied from the N pole of the fifth magnet 1252b in the second direction (Y-axis direction) and a current DE2 flows in the fifth coil 1251b corresponding to the N pole in the first direction (X-axis direction), an electromagnetic force DEM2 may act in the third direction (Z-axis direction) according to the interaction of electromagnetic forces (e.g., Fleming's left-hand rule).

[0487] In addition, in the embodiment, when a magnetic force is applied from the S pole of the fifth magnet 1252b in the direction opposite to the second direction (Y-axis direction) and a current DE2 flows in the fifth coil 1251b corresponding to the S pole in the direction opposite to the first direction (X-axis direction), the electromagnetic force DEM2 may act in the Z-axis direction according to the interaction of electromagnetic forces.

[0488] At this time, since the fifth coil 1251b is in a state fixed to the side portion of the second housing, the second lens assembly 1222b provided with the fifth magnet 1252b thereon may move in the direction opposite to 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 may change according to the current in the coil and the magnetic force of the magnet. Therefore, the second lens assembly 1222b may move in a direction parallel to the third direction (Z-axis direction) along a track located on the inner surface of the second housing through the second spherical member B2. At this time, the electromagnetic force DEM2 may be controlled to be proportional to the current DE2 applied to the fifth coil 1251b.

[0489] Refer to Figure 20 , in the camera device according to the embodiment, the second driving unit may provide driving forces F3A, F3B, F4A, and F4B that cause the first lens assembly 1222a and the second lens assembly 1222b of the lens unit 1220 to move in the third direction (Z-axis direction). As described above, the second driving unit may include a second driving coil 1251 and a second driving magnet 1252. In addition, the lens unit 1220 may move in the third direction (Z-axis direction) by the electromagnetic force generated between the second driving coil 1251 and the second driving magnet 1252.

[0490] At this time, the fourth coil 1251a and the fifth coil 1251b may be disposed in holes formed in side portions (e.g., a first side portion and a second side portion) of the second housing 1230. In addition, the fifth coil 1251b may be electrically connected to the first plate 1271. The fourth coil 1251a may be electrically connected to the second plate 1272. Accordingly, the fourth coil 1251a and the fifth coil 1251b may receive a driving signal (e.g., current) from a driving driver on the circuit board 1300 through the second plate unit 1270.

[0491] At this time, the first lens assembly 1222a on which the fourth magnet 1252a is seated may move in a third direction (Z-axis direction) by electromagnetic forces F3A and F3B between the fourth coil 1251a and the fourth magnet 1252a. In addition, the second lens group 1221b seated on the first lens assembly 1222a may also move in the third direction.

[0492] In addition, the second lens assembly 1222b on which the fifth magnet 1252b is seated may move in a third direction (Z-axis direction) by electromagnetic forces F4A and F4B between the fifth coil 1251b and the fifth magnet 1252b. In addition, the third lens group 1221c seated on the second lens assembly 1222b may also move in the third direction.

[0493] Accordingly, as described above, the focal length or magnification of the optical system may be changed by moving the second lens group 1221b and the third lens group 1221c. In an embodiment, the magnification may be changed by moving the second lens group 1221b. That is, zooming may be performed. In addition, the focus may be adjusted by moving the third lens group 1221c. That is, autofocus may be performed. With this configuration, the second camera actuator may be a fixed zoom or a continuous zoom.

[0494] Figure 21 is a schematic diagram showing a circuit board according to an embodiment.

[0495] Refer to Figure 21, as described above, the circuit board 1300 according to the embodiment may include a first circuit board unit 1310 and a second circuit board unit 1320. The first circuit board unit 1310 may be positioned below the base and coupled to the base. Additionally, the image sensor IS may be disposed on the first circuit board unit 1310. Further, the first circuit board unit 1310 and the image sensor IS may be electrically connected. That is, the base may be positioned at the rear end portion of the second camera actuator, and the image sensor and the circuit board (the first circuit board unit) may be positioned at the rear end portion of the base. The base may include a filter (e.g., an infrared filter). Here, the circuit board 1300 is used interchangeably with the "main board unit" to be described below. Additionally, the first circuit board unit 1310 is used interchangeably with the "first unit main board" to be described below. Additionally, the second circuit board unit 1320 is used interchangeably with the "second unit main board" to be described below.

[0496] Additionally, the second circuit board unit 1320 may be positioned on the side portion of the base. In particular, the second circuit board unit 1320 may be positioned on the first side portion of the base. Thus, the second circuit board unit 1320 may be positioned adjacent to the fourth coil, which is positioned adjacent to the first side portion, for simple electrical connection. Additionally, the second circuit board unit 1320 may be positioned on the second side portion of the base. As described above, a plurality of second circuit board units 1320 may be formed. However, the present disclosure is not limited thereto, and the second circuit board unit 1320 may be disposed only on either the first side portion or the second side portion.

[0497] Furthermore, the circuit board 1300 may also include a fixing plate (not shown) positioned on the side surface of the circuit board. Thus, even when the circuit board 1300 is made of a flexible material, the circuit board 1300 may be coupled to the base while maintaining stiffness through the fixing plate.

[0498] The second circuit board unit 1320 of the circuit board 1300 may be positioned on the side portion of the second driving unit 1250. The circuit board 1300 may be electrically connected to the first driving unit and the second driving unit. For example, the electrical connection may be performed by surface mount technology (SMT). However, the present disclosure is not limited to this method.

[0499] The circuit board 1300 may include a circuit board having wiring patterns that can be electrically connected, such as a rigid printed circuit board (rigid PCB), a flexible PCB, and a rigid-flexible PCB. However, the present disclosure is not limited to these types.

[0500] In addition, the circuit board 1300 may be electrically connected to another camera module in the terminal or the processor of the terminal. Accordingly, the camera actuator and the camera device including the above-described camera actuator may transmit and receive various signals within the terminal.

[0501] Figure 22 is a perspective view of a first lens assembly, a first engagement member, a second engagement member, and a second lens assembly according to an embodiment.

[0502] Referring to Figure 22 , the first lens assembly 1222a and the second lens assembly 1222b may be disposed to be spaced apart from each other in the optical axis direction (Z-axis direction). In addition, the first lens assembly 1222a and the second lens assembly 1222b may be moved in the optical axis direction (Z-axis direction) by the second driving unit. For example, an autofocus or zoom function may be performed by moving the first lens assembly 1222a and the second lens assembly 1222b.

[0503] In addition, the first lens assembly 1222a may include a first lens holder LAH1 for holding and coupling the second lens group 1221b. The first lens holder LAH1 may be coupled to the second lens group 1221b. In addition, the first lens holder LAH1 may include a first lens hole LH1 for accommodating the second lens group 1221b. That is, the second lens group 1221b including at least one lens may be disposed in the first lens hole LH1. The first lens holder LAH1 is the same as the accommodation unit (e.g., the first accommodation unit or the second accommodation unit) described below and is used interchangeably with the accommodation unit.

[0504] In addition, the second lens assembly 1222b may include a second lens holder LAH2 for holding and coupling the third lens group 1221c. In addition, the second lens holder LAH2 may include a second lens hole LH2 for accommodating the third lens group 1221c. That is, at least one lens may be disposed in the second lens hole LH2.

[0505] In an embodiment, each of the first lens assembly 1222a and the second lens assembly 1222b may include outer surfaces adjacent to each other. The first lens assembly 1222a may include a first outer surface MM1, and the second lens assembly 1222b may include a second outer surface MM2. The first outer surface MM1 may be the lower surface of the first lens holder LAH1 with respect to the optical axis direction (Z-axis direction). In addition, a third outer surface MM3 described below may be the upper surface of the first lens holder LAH1. In addition, the second outer surface MM2 may be the upper surface of the second lens holder LAH2, and a fourth outer surface MM4 may be the lower surface of the second lens holder LAH2.

[0506] In addition, at least some portions of the first outer surface MM1 and the second outer surface MM2 may overlap in the optical axis direction (Z-axis direction). In an embodiment, at least some portions of the first outer surface MM1 to the fourth outer surface MM4 may overlap in the optical axis direction (Z-axis direction).

[0507] 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.

[0508] Figure 23 is a perspective view of a mobile terminal to which a camera module according to an embodiment is applied.

[0509] As Figure 23 shown, a mobile terminal 1500 according to an embodiment may include a camera module 1000, a flash module 1530, and an AF device 1510 disposed on its rear surface.

[0510] The camera module 1000 may include an image capture function and an AF function. For example, the camera module 1000 may include an AF function using an image.

[0511] The camera module 1000 processes image frames of a still image or a moving image obtained through an image sensor in a capture mode or a video call mode.

[0512] The processed image frames may be displayed on a predetermined display and stored in a memory. A camera (not shown) may also be disposed on the front surface of the main body of the mobile terminal.

[0513] For example, the camera module 1000 may include a first camera module 1000A and a second camera module 1000B, and the first camera module 1000A may implement an OIS function as well as an AF / zoom function.

[0514] The flash module 1530 may include a light emitting device for emitting light in the flash module. The flash module 1530 may be operated through a camera operation of the mobile terminal or a user's control.

[0515] The AF device 1510 may include one package in a package of a surface emitting laser device as a light emitting unit.

[0516] The AF device 1510 may include an AF function using a laser. The AF device 1510 may be mainly used in cases where the AF function of using an image of the camera module 1000 deteriorates, for example, in a proximity of 10 m or less or in a dark environment.

[0517] The AF device 1510 may include a light emitting unit and a light receiving unit, such as a photodiode. The light emitting unit includes a vertical cavity surface emitting laser (VCSEL) semiconductor device, and the light receiving unit is configured to convert light energy into electrical energy.

[0518] Figure 24 FIG. is a perspective view of a vehicle to which a camera module according to an embodiment is applied.

[0519] For example, Figure 24 FIG. is an external view of a vehicle including a vehicle driver assistance device to which a camera module 1000 according to an embodiment is applied.

[0520] Referring to Figure 24 , the vehicle 700 in 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 the present disclosure is not limited thereto.

[0521] The camera sensor 2000 may be a camera sensor to which a camera module 1000 according to an embodiment is applied. The vehicle 700 in the embodiment may obtain image information through the camera sensor 2000 for capturing a front image or a surrounding image, use the image information to determine a situation where lane lines are not recognized, and generate virtual lane lines when the lane lines are not recognized.

[0522] For example, the camera sensor 2000 may obtain a front image by capturing a view in front of the vehicle 700, and a processor (not shown) may obtain image information by analyzing objects included in the front image.

[0523] For example, when lane lines, adjacent vehicles, traveling obstacles, and objects corresponding to indirect road markings, such as a median strip, a curb, or a tree, are captured in an image captured by the camera sensor 2000, the processor may detect the objects and include the detected objects in the image information. At this time, the processor may further supplement the image information by obtaining distance information from the objects detected by the camera sensor 2000.

[0524] The image information may be information about objects captured in the image. The camera sensor 2000 may include an image sensor and an image processing module.

[0525] The camera sensor 2000 may process a still image or a moving image obtained through an image sensor (e.g., complementary metal oxide semiconductor (CMOS) or charge coupled device (CCD)).

[0526] The image processing module may process a still image or a moving image obtained through the image sensor to extract necessary information and transmit the extracted information to the processor.

[0527] At this time, the camera sensor 2000 may include a stereo camera for improving the measurement accuracy of an object and further ensuring information such as the distance between the vehicle 700 and the object, but the present disclosure is not limited thereto.

[0528] Although the embodiments have been mainly described above, these embodiments are merely illustrative and do not limit the present disclosure, and those skilled in the art to which the present disclosure pertains will understand that various modifications and applications not illustrated above are possible without departing from the basic characteristics of the embodiments. For example, each component specifically illustrated in the embodiments can be implemented by modification. In addition, the differences related to these modifications and applications should be construed as being included in the scope of the present disclosure defined in the appended claims.

Claims

1. A camera actuator, the camera actuator comprises: a housing; a moving member disposed in the housing and including an optical member; an inclination guiding unit connected to the moving member in the housing; and a driving unit configured to rotate the moving member; wherein, the driving unit includes: a driving magnet; a driving coil facing the driving magnet; a plate unit on which the driving coil is disposed; and an attitude detection sensor disposed on the plate unit, the plate unit includes a first plate side portion and a second plate side portion, the second plate side portion faces the first plate side portion and the attitude detection sensor is disposed on the second plate side portion, and the thickness of the second plate side portion is greater than the thickness of the first plate side portion.

2. The camera actuator according to claim 1, wherein, the plate unit includes a third plate side portion disposed between the first plate side portion and the second plate side portion.

3. The camera actuator according to claim 2, wherein, the plate unit includes a first layer, a second layer disposed inside the first layer, and a third layer disposed outside the first layer.

4. The camera actuator according to claim 3, wherein, the second layer is disposed inside the first plate side portion and the second plate side portion.

5. The camera actuator according to claim 3, wherein, the first layer is disposed on the first plate side portion to the third plate side portion.

6. The camera actuator according to claim 3, wherein, the second layer and the third layer are disposed on at least one of the first plate side portion and the second plate side portion.

7. The camera actuator according to claim 3, wherein, the attitude detection sensor is disposed on the second plate side portion, and the second layer and the third layer are disposed on the second plate side portion.

8. The camera actuator according to claim 3, wherein, the attitude detection sensor is disposed outside the first layer on the second plate side portion, and the driving coil is disposed inside the first layer on the second plate side portion.

9. The camera actuator according to claim 3, wherein, the second layer is disposed on the second plate side portion to correspond to the attitude detection sensor, and the third layer is disposed on the second plate side portion to correspond to the driving coil.

10. The camera actuator according to claim 3, wherein, the second layer overlaps the attitude detection sensor and the driving coil in a horizontal direction, the third layer overlaps the attitude detection sensor and the driving coil in the horizontal direction, and the horizontal direction corresponds to the direction from the first plate side portion toward the second plate side portion.

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