Camera actuator and camera module including the same

Abstract

Disclosed in an embodiment of the present invention is a camera actuator comprising: a housing comprising a first side portion and a second side portion facing each other; a first lens assembly and a second lens assembly which move in the optical axis direction in the housing; and a driving unit that moves the first lens assembly and the second lens assembly, in which the driving unit includes a first coil including a first sub-coil and a second sub-coil arranged in order in an optical axis direction, and the first side portion includes a first groove in which the first coil is disposed and a first reinforcing member disposed between the first sub-coil and the second sub-coil.

Description

Technical Field

[0001] The present invention 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 by capturing an image of an object, and is mounted on a mobile device, a drone, a vehicle, etc. In order to improve the quality of an image, a camera module may have an image stabilizer (IS) function for correcting or preventing image shaking caused by a user's motion, an auto focus (AF) function for aligning the focus of a lens by automatically adjusting the spacing between an image sensor and a lens, and a zoom function for capturing a distant object by increasing or decreasing the magnification of the distant object with a zoom lens.

[0003] However, there is a problem of manufacturing difficulty due to the miniaturization of camera modules. Summary of the invention

[0004] Technical issues

[0005] Embodiments of the present invention are directed to providing a camera actuator and a camera module having improved reliability through arrangement of sub-Hall sensors.

[0006] In addition, embodiments of the present invention are directed to providing a camera actuator and a camera module which maintain driving accuracy and secure a space for electrical connection through the position between a sub Hall sensor and a sub coil.

[0007] In addition, embodiments of the present invention are directed to providing a camera actuator and a camera module which provide different driving distances and increased driving efficiency through different lengths between sub-coils.

[0008] Embodiments of the present invention are directed to providing a camera actuator suitable for an ultra-thin, ultra-small, and high-resolution camera.

[0009] The purpose of each embodiment is not limited thereto, and may also include a purpose or effect that can be determined according to a configuration or embodiment to be described below.

[0010] Technical Solution

[0011] A camera actuator according to an embodiment of the present invention includes: a housing; a first lens assembly and a second lens assembly, which move in the housing along an optical axis direction; and a driving part, which moves the first lens assembly and the second lens assembly, wherein the driving part includes a first coil and a first Hall sensor, the first coil includes a first sub-coil and a second sub-coil arranged in sequence in the optical axis direction, the first Hall sensor includes a plurality of sub-Hall sensors arranged in one of the first sub-coil and the second sub-coil, and a long side portion of at least one of the plurality of sub-Hall sensors is arranged to be misaligned with long side portions of other Hall sensors.

[0012] The first Hall sensor may be disposed inside at least one of the first sub-coil and the second sub-coil.

[0013] The first sub-coil may include a first terminal extending to the inside of the hole of the first sub-coil and a second terminal extending to the outside of the first sub-coil.

[0014] The camera actuator may further include a plate portion disposed outside the driving portion, wherein the first coil may be disposed on the plate portion, and the plate portion may include a first connection point contacting the first terminal and a second connection point contacting the second terminal.

[0015] At least one sub Hall sensor of the plurality of sub Hall sensors may be adjacent to the first connection point.

[0016] At least one of the plurality of sub hall sensors may overlap with the first connection point in a direction perpendicular to the optical axis direction.

[0017] Other Hall sensors among the plurality of sub-Hall sensors may be disposed to be misaligned with the first connection point in a direction perpendicular to the optical axis direction.

[0018] The plurality of sub-hall sensors may include a first sub-hall sensor, a second sub-hall sensor, a third sub-hall sensor, and a fourth sub-hall sensor that are sequentially disposed in the optical axis direction.

[0019] The first connection point may overlap with the first sub hall sensor in a direction perpendicular to the optical axis direction.

[0020] The first connection point may be disposed between the first sub Hall sensor and the second sub Hall sensor.

[0021] The long side of the first sub hall sensor may not be parallel to the long sides of the second sub hall sensor, the third sub hall sensor, and the fourth sub hall sensor.

[0022] The first connection point may overlap with the second sub Hall sensor in a direction perpendicular to the optical axis direction.

[0023] The first sub hall sensor, the second sub hall sensor, the third sub hall sensor, and the fourth sub hall sensor may have the same spacing distance between adjacent sub hall sensors and between centers of the first to fourth sub hall sensors.

[0024] The first coil may be connected to an inner surface of the plate portion, and a plurality of sub Hall sensors may be disposed on the inner surface of the plate portion.

[0025] The first Hall sensor may have a spacing distance from the first sub-coil in the optical axis direction, and the spacing distance is smaller than a spacing distance between the first Hall sensor and the coil in a direction perpendicular to the optical axis direction.

[0026] Beneficial effects

[0027] According to various embodiments of the present invention, a camera actuator and a camera module having improved reliability through arrangement of sub-Hall sensors may be implemented.

[0028] In addition, according to the embodiments of the present invention, a camera actuator and a camera module that maintain driving accuracy through the position between a sub hall sensor and a sub coil and secure a space for electrical connection can be implemented.

[0029] In addition, according to various embodiments of the present invention, a camera actuator and a camera module that provide different driving distances and increased driving efficiency through different lengths between sub-coils can be implemented.

[0030] According to various embodiments of the present invention, a camera actuator suitable for an ultra-thin, ultra-small, and high-resolution camera can be provided.

[0031] Various beneficial advantages and effects of the present invention are not limited to the above contents and will be more easily understood in the process of describing the specific embodiments of the present invention. BRIEF DESCRIPTION OF THE DRAWINGS

[0032] Figure 1 is a perspective view of a camera module according to an embodiment.

[0033] Figure 2 is an exploded perspective view of a camera module according to an embodiment.

[0034] Figure 3 It is along Figure 1 View of line AA' in.

[0035] Figure 4 is a perspective view of a second camera actuator according to an embodiment.

[0036] Figure 5 is an exploded perspective view of a second camera actuator according to an embodiment.

[0037] Figure 6 It is along Figure 4 Cross-sectional view along line DD'.

[0038] Figure 7 and Figure 8 is a view for describing each driving of the lens assembly according to the embodiment.

[0039] Fig. 9 is a view for describing driving of a second camera actuator according to an embodiment.

[0040] Fig.10 is a perspective view of some components of a second camera actuator according to an embodiment.

[0041] Fig.11 2-1 is a view for describing parts of a housing, a first lens assembly, a second lens assembly, and a driving portion in a second camera actuator according to an embodiment.

[0042] Fig.12 is a view for describing a portion of a first driving portion and a first board in a second camera actuator according to an embodiment.

[0043] Figures 13 to 15 It's a picture. Fig.12 Views of various usage examples.

[0044] Fig.16 is a view illustrating a portion of a second driving portion and a second plate in a second camera actuator according to an embodiment.

[0045] Fig.17 is a side view illustrating a portion of a driving portion in a second camera actuator according to an embodiment.

[0046] Fig.18 2-1 is a view for describing parts of a housing, a first lens assembly, a second lens assembly, and a driving portion in a second camera actuator according to another embodiment.

[0047] Fig.19 2-1 is a view for describing parts of a housing, a first lens assembly, a second lens assembly, and a driving portion in a second camera actuator according to still another embodiment.

[0048] Fig. 20 The diagram shows Fig.19 A side view of a portion of the drive section.

[0049] Fig.21is a schematic diagram illustrating a circuit board according to an embodiment.

[0050] Fig. 22 is a perspective view of a mobile terminal to which a camera module according to an embodiment is applied.

[0051] Fig.23 is a perspective view of a vehicle to which a camera module according to an embodiment is applied. DETAILED DESCRIPTION

[0052] Since the present invention can have various changes and various embodiments, each specific embodiment is illustrated and described in the accompanying drawings. However, it should be understood that the present invention is not intended to limit each specific embodiment, and the present invention should be understood to include all modifications, equivalents and substitutes included in the spirit and scope of the present invention.

[0053] Terms including ordinal numbers such as second or first can be used to describe various components, but these components are not limited by these terms. These terms are only used for the purpose of distinguishing one component from another component. For example, without departing from the scope of the invention, the second component can be referred to as the first component, and similarly, the first component can also be referred to as the second component. The term "and / or" includes a combination of multiple associated listed items or any of the multiple associated listed items.

[0054] When a first component is described as being “connected” or “coupled” to a second component, it should be understood that the first component may be directly connected or coupled to the second component, or a third component may exist between the first component and the second 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.

[0055] The terms used in this application are only used to describe specific embodiments and are not intended to limit the present invention. Unless the context clearly provides otherwise, the singular includes the plural. In this application, it should be understood that the terms "including" and "having" are intended to specify that the features, numbers, steps, operations, components, parts or combinations thereof described in this specification are present, 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.

[0056] Unless otherwise defined, all terms used herein, including technical terms or scientific terms, have the same meanings as those generally understood by ordinary technicians in the field to which the present invention belongs. Terms such as those defined in commonly used dictionaries should be understood to have meanings consistent with the meanings in the context of the relevant field, and unless clearly defined in this application, these terms should not be interpreted in an ideal or overly formal meaning.

[0057] Hereinafter, various embodiments will be described in detail with reference to the accompanying drawings, and the same or corresponding components are denoted by the same reference numerals regardless of the reference numerals, and overlapping descriptions thereof will be omitted.

[0058] Figure 1 is a perspective view of a camera module according to an embodiment, Figure 2 is an exploded perspective view of a camera module according to an embodiment, and Figure 3 It is along Figure 1 View of line AA' in.

[0059] Reference Figure 1 and Figure 2 , the camera module 1000 according to the embodiment may include a cover CV, a first camera actuator 1100, a second camera actuator 1200, and a circuit board 1300. Here, the first camera actuator 1100 may be used interchangeably with the "first actuator", and the second camera actuator 1200 may be used interchangeably with the "second actuator".

[0060] 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.

[0061] In addition, the cover CV may be made of a material that blocks electromagnetic waves. Therefore, the first camera actuator 1100 and the second camera actuator 1200 in the cover CV may be easily protected.

[0062] In addition, the first camera actuator 1100 may be an optical image stabilizer (OIS) actuator. For example, the first camera actuator 1100 may move an optical member in a direction perpendicular to an optical axis (an axis of incident light).

[0063] The first camera actuator 1100 may include a fixed focal length lens disposed in a predetermined lens barrel (not shown). The fixed focal length lens may be referred to as a "single focal length lens" or a "single lens".

[0064] The first camera actuator 1100 can change the optical path. In an embodiment, the first camera actuator 1100 can change the optical path vertically by an internal optical member (e.g., a prism or a mirror). For example, the optical member can change the light from a first direction (X-axis direction) to a third direction (Z-axis direction). Alternatively, the optical member can change the 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 set in the mobile terminal by a change in the optical path, so that magnification and auto focus (AF), zoom and OIS functions can be performed.

[0065] However, the present invention is not limited thereto, and the first camera actuator 1100 may change the optical path vertically or a plurality of times at a predetermined angle.

[0066] The second camera actuator 1200 may be provided at a 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 in any method.

[0067] In addition, the second camera actuator 1200 may be a zoom actuator or an AF actuator. For example, the second camera actuator 1200 may support one lens or a plurality of lenses and perform an AF function or a zoom function by moving the lens according to a predetermined control signal of the control unit.

[0068] In addition, one lens or a plurality of lenses are independently or individually moved in the direction of the optical axis.

[0069] The circuit board 1300 may be disposed at a rear end portion of the second camera actuator 1200. The circuit board 1300 may be electrically connected to the second camera actuator 1200 and the first camera actuator 1100. In addition, a plurality of circuit boards 1300 may be provided.

[0070] The camera module according to the embodiment may be formed of one camera module or a plurality of camera modules. For example, the plurality of camera modules may include a first camera module and a second camera module.

[0071] In addition, the first camera module may include one actuator or a plurality of actuators. For example, the first camera module may include a first camera actuator 1100 and a second camera actuator 1200.

[0072] 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 portion. The actuator may be a voice coil motor, a microactuator, a silicon actuator, etc., and may be applied in any manner such as an electrostatic method, a thermal method, a dual piezoelectric chip method, and an electrostatic force method, but the present invention is not limited thereto. In addition, in this specification, the camera actuator may be referred to as an "actuator" or the like. In addition, a camera module formed by a plurality of camera modules may be installed in any electronic device 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 conveying device", a "lens moving device", an "optical member conveying device", an "optical member moving device", or the like.

[0073] Reference Figure 3 , a camera module according to an embodiment may include a first camera actuator 1100 for performing an OIS function and a second camera actuator 1200 for performing a zoom function and an AF function.

[0074] Light may be incident on the camera module or the first camera actuator through an opening area positioned in the upper surface of the first camera actuator 1100. That is, light may mainly enter the first camera actuator 1100 in a vertical direction (e.g., based on the X-axis direction of the incident light), and the optical path may be changed along the optical axis direction (e.g., the Z-axis direction) by an optical member. In addition, light may pass through the second camera actuator 1200 and may be incident on the image sensor IS positioned at one end of the second camera actuator 1200 (path). In this specification, the Z-axis direction or the third direction will be described as the optical axis direction as follows. In addition, the first direction and the X-axis direction will be described as the vertical direction. In addition, the second direction and the Y-axis direction will be described as the horizontal direction.

[0075] In this specification, the lower surface represents a side in the first direction. In addition, the first direction is the X-axis direction in the drawings, and can be used interchangeably with the second axis direction, etc. The second direction is the Y-axis direction in the drawings, and can be used interchangeably with the first axis direction, etc. The second direction is a direction perpendicular to the first direction. In addition, the third direction is the Z-axis direction in the drawings, and can be used interchangeably with the third axis direction, etc. In addition, the third direction is perpendicular to both the first direction and the second direction. Here, the third direction (Z-axis direction) corresponds to the optical axis direction, and the first direction (X-axis direction) and the second direction (Y-axis direction) are directions perpendicular to the optical axis. In addition, hereinafter, in the description of the first camera actuator and the second camera actuator, the optical axis direction is the third direction (Z-axis direction), and the following description will be given based on this.

[0076] In addition, in the present specification, the inside may be a direction from the cover CV to the first camera actuator, and the outside may be a direction opposite to the inside. That is, the first camera actuator and the second camera actuator may be positioned on the inside of the cover CV, and the cover CV may be positioned on the outside of the first camera actuator or the second camera actuator.

[0077] In addition, with this configuration, the camera module according to the embodiment can solve the space limitation of the first camera actuator and the second camera actuator by changing the optical path. That is, the camera module according to the embodiment can extend the optical path in response to the change of the optical path while minimizing the thickness of the camera module. In addition, it should be understood that the second camera actuator can provide a wide range of magnification by controlling the focus in the extended optical path, etc.

[0078] In addition, the camera module according to the embodiment can implement OIS by controlling an optical path passing through the first camera actuator, thereby minimizing the occurrence of decentering or tilting phenomena and providing optimal optical characteristics.

[0079] In addition, the second camera actuator 1200 may include an optical system and a lens driving part. For example, at least one of the first lens assembly, the second lens assembly, and the third lens assembly may be provided in the second camera actuator 1200.

[0080] In addition, the second camera actuator 1200 may include a coil and a magnet, and perform a high magnification zoom function and an AF function.

[0081] For example, although the first lens assembly and the second lens assembly may be moving lenses that move through the coil, the magnet and the guide pin, and the third lens assembly may be a fixed lens, the present invention is not limited thereto. For example, the third lens assembly may perform the function of a focuser through which light forms an image at a specific position, and the first lens assembly may perform the function of a converter for re-forming the image formed by the third lens assembly as a focuser at another position. At the same time, because the distance to the object or the image distance changes to a large extent, the first lens assembly may be in a state where the magnification changes greatly, and the first lens assembly as a converter may play an important role in the focal length or magnification change of the optical system. At the same time, the imaging point of the image formed by the first lens assembly as a converter may be slightly different depending on the position. Therefore, the second lens assembly may perform a position compensation function for the image formed by the converter. For example, the second lens assembly may perform the function of a compensator using the imaging point of the image formed by the first lens assembly as a converter to accurately form an image at the actual position of the image sensor. For example, the first lens assembly and the second lens assembly may be driven by an electromagnetic force generated by the interaction between the coil and the magnet. The above description can be applied to the lens assembly to be described below. In addition, the first lens assembly to the third lens assembly can be moved along the optical axis direction, that is, along the third direction. In addition, the first lens assembly to the third lens assembly can be moved independently or not independently along the third direction. In the present invention, the first lens assembly and the second lens assembly can be moved along the optical axis direction. In addition, the third lens assembly can be positioned at the front end of the first lens assembly or at the rear end of the second lens assembly. In addition, the third lens assembly may not move along the optical axis direction. That is, the third lens assembly can be a fixed component. In addition, the first lens assembly and the second lens assembly can be moving components.

[0082] Meanwhile, when the OIS actuator and the AF actuator / zoom actuator are provided according to an embodiment of the present invention, magnetic field interference with the AF magnet / zoom magnet can be prevented when the OIS is driven. Since the first driving magnet of the first camera actuator 1100 is provided separately from the second camera actuator 1200, magnetic field interference between the first camera actuator 1100 and the second camera actuator 1200 can be prevented. In this specification, OIS may be used interchangeably with terms such as hand shake correction, optical image stabilization, optical image correction, or shake correction.

[0083] In particular, the optical member RM in the first camera actuator 1100 may be tilted along the X-axis or the Y-axis. Therefore, the optical path may be easily changed according to the X-axis tilt or the Y-axis tilt.

[0084] The optical member RM may be seated on a holder of the first camera actuator or the like. In an embodiment, the optical member RM may be formed by a mirror or a prism. Hereinafter, the optical member RM is illustrated as a prism, but the optical member RM may be formed by a plurality of lenses as in the above-described embodiment. Alternatively, the optical member RM may be formed by a plurality of lenses and a prism or a mirror. In addition, the optical member RM may include a reflector disposed therein. However, the present invention is not limited thereto.

[0085] The optical member RM in the first camera actuator 1100 may be tilted along the X-axis or the Y-axis by driving of the VCM, etc. That is, OIS may be implemented by tilting or rotating the optical member RM in the Y-axis direction or the X-axis direction.

[0086] Figure 4 is a perspective view illustrating a second camera actuator according to an embodiment, Figure 5 is an exploded perspective view illustrating a second camera actuator according to an embodiment, Figure 6 It is along Figure 4 A cross-sectional view of the second camera actuator along line DD′, Figure 7 and Figure 8 is a view for describing each driving operation of the lens assembly according to the embodiment, and Fig. 9 is a view for describing driving of a second camera actuator according to an embodiment.

[0087] Reference Figures 4 to 6 According to an embodiment, the second camera actuator 1200 (or a camera device, a zoom lens transfer device, a zoom lens moving device, or a lens transfer device) may include a lens portion 1220, a housing 1230, a driving portion 1250, a base portion 1260, a plate portion 1270, and stoppers ST1 and ST2. In addition, the second camera actuator 1200 may further include a shield cover (not shown), an elastic portion (not shown), and a coupling member (not shown).

[0088] In addition, as will be described below, the lens group can be moved in the direction of the optical axis. In addition, the lens group can be connected to the lens assembly to move together in the direction of the optical axis. In this case, the second camera actuator may include a moving part that moves in the direction of the optical axis like the lens group, and a fixed part that is relatively fixed and does not move in the direction of the optical axis, unlike the moving part. In the present embodiment, the moving part may include a lens assembly (e.g., a first lens assembly and a second lens assembly), an optical drive magnet (a first drive magnet and a second drive magnet). In addition, the fixed part may include a housing, a plate portion, an optical drive coil (a first coil and a second coil), and a Hall sensor. In addition, the drive magnet may be disposed on one of the moving part and the fixed part, and the drive coil may be disposed on the other. The movement distance of the lens assembly to be described below corresponding to this description may correspond to the movement distance of the moving part.

[0089] A shield cover (not shown) can be positioned in an area (e.g., the outermost side) of the second camera actuator 1200 to surround the components to be described below (lens portion 1220, housing 1230, drive portion 1250, base portion 1260, board portion 1270, and an image sensor IS disposed on a circuit board at the rear end).

[0090] The shielding case (not shown) may block or reduce electromagnetic waves generated from the outside, thereby reducing the occurrence of malfunction of the driving part 1250.

[0091] The lens portion 1220 may be positioned in a shield case (not shown). The lens portion 1220 may be moved in a third direction (Z-axis direction or optical axis direction). Thus, the above-mentioned AF function or zoom function may be performed.

[0092] In addition, the lens portion 1220 may be positioned in the housing 1230. Therefore, at least a portion of the lens portion 1220 may be moved in the housing 1230 in the optical axis direction or the third direction (Z-axis direction).

[0093] Specifically, the lens portion 1220 may include a lens group 1221 and a moving assembly 1222 .

[0094] First, the lens group 1221 may include at least one lens. In addition, although the lens group 1221 may be provided as a plurality of lens groups, the following description will be given based on one lens group.

[0095] The lens group 1221 may be coupled to the moving assembly 1222 and moved in a third direction (Z-axis direction) by an electromagnetic force generated from the first magnet 1252 a and the second magnet 1252 b coupled to the moving assembly 1222 .

[0096] 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 in the optical axis direction. In addition, the lens group 1221 may further include a fourth lens group. The fourth lens group may be arranged at the rear end of the third lens group 1221c.

[0097] The first lens group 1221a may be fixedly coupled to the 2-1 housing (or a fixed component). That is, the first lens group 1221a may not move along the optical axis direction.

[0098] The second lens group 1221b may be coupled to the first lens assembly 1222a to move in a third direction or an optical axis direction. Magnification adjustment may be performed by moving the first lens assembly 1222a and the second lens group 1221b.

[0099] The third lens group 1221c may be coupled to the second lens assembly 1222b to move in a third direction or an optical axis direction. Focus adjustment or automatic focusing may be performed by moving the third lens group 1221.

[0100] However, the present invention is not limited to the number of lens groups, and the fourth lens group described above may not exist, or an additional lens group or the like may be further provided in addition to the fourth lens group 1121 d .

[0101] The moving assembly 1222 may include an opening area around the lens group 1221. The moving assembly 1222 may be used in an interchangeable manner with the first lens assembly and the second lens assembly. The moving assembly 1222 or the lens assembly may move in the housing 1230 along the optical axis direction (Z-axis direction). In addition, the moving assembly 1222 may be coupled to the lens group 1221 by any method. In addition, the moving assembly 1222 may include a groove in its side surface, and may be coupled to the first magnet 1252a and the second magnet 1252b by the groove. A coupling member or the like may be applied to the groove.

[0102] In addition, the moving assembly 1222 may be coupled to an elastic portion (not shown) at its upper end and rear end. Therefore, the moving assembly 1222 may be supported by the elastic portion (not shown) while moving in the third direction (Z-axis direction). In other words, the position of the moving assembly 1222 may be maintained in the third direction (Z-axis direction). The elastic portion (not shown) may be formed by any elastic element such as a leaf spring.

[0103] The moving assembly 1222 may be positioned in the housing 1230 and may include a first lens assembly 1222a and a second lens assembly 1222b.

[0104] The area of ​​the second lens assembly 1222b in which the third lens group is seated can be positioned at the rear end of the first lens assembly 1221a. That is, the area of ​​the second lens assembly 1222b in which the third lens group 1221c is seated can be positioned between the area of ​​the first lens assembly 1222a in which the second lens group 1221b is seated and the image sensor.

[0105] The first lens assembly 1222a and the second lens assembly 1222b may face the first guide portion and the second guide portion, respectively. The first guide portion and the second guide portion may be positioned on the first side portion 1232a and the second side portion 1232b to be described below of the housing 1230 (or 2-2 housing). The first guide portion and the second guide portion may be integrally or individually disposed on the first side portion 1232a and the second side portion 1232b to be described below of the housing 1230 (or 2-2 housing). The following description will be given based on the integral type.

[0106] In addition, the optical drive magnet can be seated on the outer surface of the first lens assembly 1222a and the second lens assembly 1222b. For example, the second magnet 1252b can be seated on the outer surface of the second lens assembly 1222b. The first magnet 1252a can be seated on the outer surface of the first lens assembly 1222a. In this specification, the first lens assembly 1222a can be used in an interchangeable manner with the "first coil frame". The second lens assembly 1222b can be used in an interchangeable manner with the "second coil frame".

[0107] The housing 1230 may be disposed between the lens portion 1220 and a shield cover (not shown). In addition, the housing 1230 may be disposed to surround the lens portion 1220 .

[0108] The housing 1230 may include a 2-1 housing 1231, a 2-2 housing 1232, and a cover base CB. The 2-1 housing 1231 may be coupled to the first lens group 1221a and may also be coupled to the first camera actuator described above. The 2-1 housing 1231 may be positioned in front of the 2-2 housing 1232. The 2-1 housing may be referred to as a "fixed assembly", "fixed lens assembly", "fixed lens housing portion", etc. The 2-2 housing may be referred to as a "main lens barrel", "lens barrel", "lens barrel", etc.

[0109] In addition, the 2-2 housing 1232 may be positioned at a rear end portion of the 2-1 housing 1231. The first and second lens assemblies and the lens portion 1220 may be seated inside the 2-2 housing 1232.

[0110] A hole may be formed in the side portion of the housing 1230 (or the 2-2 housing 1232). The first coil 1251a and the second coil 1251b may be disposed in the hole. The hole may be positioned to correspond to the above-mentioned groove of the moving component 1222. In this case, the first coil 1251a and the second coil 1251b may each be formed as a plurality of coils.

[0111] In an embodiment, the housing 1230 (particularly, the 2-2 housing 1232) may include a first side portion 1232a and a second side portion 1232b. The first side portion 1232a and the second side portion 1232b may be positioned to correspond to each other. For example, the first side portion 1232a and the second side portion 1232b may be symmetrically arranged relative to the third direction. An optical drive coil 1251 may be positioned on the first side portion 1232a and the second side portion 1232b. In addition, the plate portion 1270 may be seated on the outer surface of the first side portion 1232a and the second side portion 1232b. That is, a first plate may be positioned on the outer surface of the first side portion 1232a, and a second plate may be positioned on the outer surface of the second side portion 1232b.

[0112] The cover base CB can be arranged between the 2-1 housing 1231 and the 2-2 housing 1232. The cover base CB can prevent the lens (e.g., the first lens group) positioned or accommodated in the 2-1 housing 1231 (or the fixed component) from being damaged by impact. That is, when the moving component moves in the 2-2 housing 1232, the cover base CB can absorb the impact of the moving component. In addition, the 1-1 stopper ST1a and the 1-2 stopper St1b to be described below can be positioned on the rear surface or the lower surface of the cover base CB. For example, the 1-1 stopper ST1a and the 1-2 stopper ST1b can be positioned between the cover base CB and the moving component (e.g., the first lens assembly). Therefore, the moving component can be mainly in contact with the 1-1 stopper ST1a and the 1-2 stopper ST1b. Therefore, the reliability of the lens group can be improved.

[0113] In addition, the cover base CB can be bonded to the 2-1 housing 1231 and the 2-2 housing 1232 by a bonding member (e.g., epoxy resin). Therefore, by adjusting the shape of the cover base CB, the 2-1 housing 1231 and the 2-2 housing 1232 can be easily bonded. In addition, by adding the cover base CB, the ease of manufacturing at least one of the 2-1 housing 1231 and the 2-2 housing 1232 can be ensured.

[0114] In addition, the first guide portion and the second guide portion may be positioned on the first side portion 1232a and the second side portion 1232b of the housing 1230 (or the 2-2 housing 1232).

[0115] The first guide portion and the second guide portion can be positioned correspondingly. For example, the first guide portion and the second guide portion can be positioned to face each other relative to a third direction (Z-axis direction). In addition, at least a portion of the first guide portion and at least a portion of the second guide portion can overlap each other in the second direction (Y-axis direction).

[0116] The first guide portion and the second guide portion may include at least one groove (e.g., a guide groove) or a recess. In addition, a first spherical piece B1 or a second spherical piece B2 may be seated in the groove or recess. The second camera actuator 1200 may further include a spherical portion. The spherical portion may include a first spherical piece B1 and a second spherical piece B2. The first lens assembly and the second lens assembly may move along the optical axis direction through the spherical portion. In this case, the spherical portion may include at least one rolling member or a spherical piece. In addition, at least one spherical piece may move along the guide groove of the first guide portion and the guide groove of the second guide portion. In addition, at least one spherical piece may move along the recess or groove of the first lens assembly and the recess or groove of the second lens assembly. Therefore, the first spherical piece B1 or the second spherical piece B2 may move in the guide groove of the first guide portion or the guide groove of the second guide portion along the third direction (Z-axis direction).

[0117] 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 1232 a of the housing 1230 or a track formed inside the second side portion 1232 b of the housing 1230 .

[0118] Therefore, the first lens assembly 1222a and the second lens assembly 1222b can be moved in the third direction or the optical axis direction. In this case, the second lens assembly 1222b can be disposed adjacent to the image sensor or disposed closer to the image sensor than the first lens assembly 1222a.

[0119] According to an embodiment, the first spherical member B1 may contact the first lens assembly 1222a. The second spherical member B2 may contact the second lens assembly 1222b. Therefore, at least a portion of the first spherical member B1 may overlap with the second spherical member B2 in the first direction (X-axis direction) according to a position.

[0120] In addition, the first guide portion and the second guide portion may include a first guide groove facing the first recess RS1. In addition, the first guide portion and the second guide portion may include a second guide groove facing the second recess RS2. The first guide groove and the second guide groove may be grooves extending along a third direction (Z-axis direction). In addition, the first guide groove and the second guide groove may be grooves having different shapes. For example, the first guide groove may be a groove having an inclined side surface, and the second guide groove may be a groove having a side surface perpendicular to its bottom surface.

[0121] In addition, the first guide groove or the second guide groove can be formed as a plurality of guide grooves. In addition, a plurality of spherical members, some of which have different diameters, can be positioned in the plurality of guide grooves.

[0122] The second magnet 1252b may be positioned to face the second coil 1251b. In addition, the first magnet 1252a may be positioned to face the first coil 1251a.

[0123] For example, at least one of the first coil 1251a and the second coil 1251b may be formed as at least one coil. For example, the first coil 1251a may be formed as a plurality of coils. The second coil 1251b may be formed as a plurality of coils. In addition, even when the first coil and the second coil are each formed as one coil, a long stroke to be described below may be achieved.

[0124] In an embodiment, the optical drive coil 1251 may be formed by sub-coils arranged in sequence in the optical axis direction (Z-axis direction). For example, a plurality of sub-coils may be arranged in sequence in the optical axis direction at each of the two side portions of the main lens barrel 1232. The 2-2 housing may be used interchangeably with the "main lens barrel".

[0125] In this embodiment, the optical drive part (or drive part 1250) may include a first drive part and a second drive part. The first drive part may provide a driving force for moving the first lens assembly 1222a along the optical axis direction. The first drive part may include a first coil 1251a and a first magnet 1252a. In addition, the first drive part may include a first drive coil and a first drive magnet. Therefore, the first coil 1251a may be referred to as a "first drive coil". In addition, the first magnet 1252a may be referred to as a "first drive magnet".

[0126] In addition, the second driving part may provide a driving force for moving the second lens assembly 1222b along the optical axis direction. The second driving part may include a second coil 1251b and a second magnet 1252b.

[0127] In addition, the second driving part may include a second driving coil and a second driving magnet. Therefore, the second coil 1251b may be referred to as a "second driving coil". In addition, the second magnet 1252b may be referred to as a "second driving magnet".

[0128] The elastic part (not shown) may include a first elastic member (not shown) and a second elastic member (not shown). The first elastic member (not shown) may be coupled to the upper surface of the moving assembly 1222. The second elastic member (not shown) may be coupled to the lower surface of the moving assembly 1222. In addition, the first elastic member (not shown) and the second elastic member (not shown) may be formed by a leaf spring as described above. In addition, the first elastic member (not shown) and the second elastic member (not shown) may provide elasticity for moving the moving assembly 1222. However, the present invention is not limited to the above-mentioned positions, and the elastic part may be arranged at any position.

[0129] In addition, the driving part 1250 can provide a driving force for moving the lens part 1220 along a third direction (Z-axis direction). The driving unit 1250 may include an optical drive coil 1251 and an optical drive magnet 1252. The optical drive coil 1251 and the optical drive magnet 1252 may be positioned to face each other. For example, the first drive coil 1251a and the first drive magnet 1252a may be positioned to face each other. In addition, the second drive coil 1251b and the second drive magnet 1252b may be positioned to face each other. The first drive coil 1251a may be positioned at one side portion in the second direction in the housing, and the second drive coil 1251a may be positioned at another side portion in the second direction in the housing.

[0130] In addition, the driving part 1250 may further include a Hall sensor part. The Hall sensor part 1253 may include at least one first Hall sensor 1253 a and at least one second Hall sensor 1253 b and may be positioned inside or outside the optical driving coil 1251 .

[0131] The moving component can move in the third direction (Z-axis direction) by the electromagnetic force generated between the optical driving coil 1251 and the optical driving magnet 1252.

[0132] The optical drive coil 1251 may include a first coil 1251a and a second coil 1251b. In addition, as described above, the first coil 1251a and the second coil 1251b may each be formed by a plurality of sub-coils. In addition, the first coil 1251a and the second coil 1251b may be disposed in a hole formed in a side portion of the housing 1230. In addition, the first coil 1251a and the second coil 1251b may be electrically connected to the plate portion 1270. Therefore, the first coil 1251a and the second coil 1251b may receive current, etc., through the plate portion 1270.

[0133] In addition, the optical driving coil 1251 may be coupled to the plate portion 1270 via a yoke or the like.

[0134] In addition, in the embodiment, the optical drive coil 1251 is a fixed element together with the plate portion 1270. In contrast, the optical drive magnet 1252 is a moving element that moves in the optical axis direction (Z-axis direction) together with the first component and the second component.

[0135] The optical driving magnet 1252 may include a first magnet 1252a and a second magnet 1252b.

[0136] In an embodiment, the first coil 1251a may include a first sub-coil SC1a and a second sub-coil SC2a. The first sub-coil SC1a and the second sub-coil SC2a may be sequentially disposed in the optical axis direction. The first sub-coil SC1a may be closer to the first camera actuator than the second sub-coil SC2a.

[0137] In addition, the second coil 1251b may include a third sub-coil SC1b and a fourth sub-coil SC2b. The third sub-coil SC1b and the fourth sub-coil SC2b may be sequentially arranged in the optical axis direction. The third sub-coil SC1b may be closer to the first camera actuator than the fourth sub-coil SC2b.

[0138] In addition, the first magnet 1252a can face the first sub-coil SC1a and the second sub-coil SC2a. The second magnet 1252b can face the third sub-coil SC1b and the fourth sub-coil SC2b. The first sub-coil SC1a can be positioned to overlap with the third sub-coil SC1b in the second direction. The second sub-coil SC2a can be positioned to overlap with the fourth sub-coil SC2b in the second direction. In this way, the first magnet 1252a and the second magnet 1252b can be positioned to face the two sub-coils in the same manner.

[0139] In addition, the coil of the first driving part and the coil of the second driving part in the second camera actuator can be described as including the first sub-coil SC1a and SC1b and the second sub-coil SC2a and SC2b. However, in this specification, the sub-coil driving the second lens assembly is described by being used interchangeably with the third sub-coil and the fourth sub-coil.

[0140] The first sub-coil SC1a and the second sub-coil SC2a can be arranged to be spaced apart from each other in the direction of the optical axis. The first sub-coil SC1a and the second sub-coil SC2a can be connected in parallel to each other. For example, one end and one of the other ends of the first sub-coil SC1a can be connected to one end and one of the other ends of the second sub-coil SC2a at a single node. In addition, one end and the other end of the first sub-coil SC1a can be connected to one end and the other end of the second sub-coil SC2a at different nodes. That is, the current applied to the first sub-coil SC1a and the second sub-coil SC2a can be distributed to each sub-coil. Therefore, the first sub-coil SC1a and the second sub-coil SC2a can be electrically connected in parallel, thereby reducing the generation of heat.

[0141] In addition, the polarity of a surface of the first drive magnet 1252a facing the first drive coils SC1a and SC2a may be the same as the polarity of a surface of the second drive magnet 1252b facing the second drive coils SC1b and SC2b. For example, the inner surface of the first drive magnet 1252a and the inner surface of the second drive magnet 1252b may have one of an N pole and an S pole (e.g., an N pole). The outer surface of the first drive magnet 1252a and the outer surface of the second drive magnet 1252b may have the other of an N pole and an S pole (e.g., an S pole). Here, the inner surface may be a side surface adjacent to the optical axis, and the outer surface may be a side surface away from the optical axis relative to the optical axis. In addition, the first magnet 1252a may have a first pole on a first surface BSF1 facing the optical drive coil (e.g., the first coil). In addition, the first magnet 1252a may have a second pole on a second surface BSF2 which is a surface opposite to the first surface BSF1. The second magnet 1252b may have a first pole on a first surface BSF1 facing the optical drive coil (e.g., the second coil). In addition, the second magnet 1252b may have a second pole on a second surface BSF2 which is a surface opposite to the first surface BSF1. The first pole may be one of an N pole and an S pole. In addition, the second pole may be the other of an N pole and an S pole.

[0142] Alternatively, the first driving magnet and the second driving magnet may have a structure in which N pole / S pole or S pole / N pole is arranged in sequence in the optical axis direction.

[0143] In addition, the third sub-coil SC1b and the fourth sub-coil SC2b can be arranged to be spaced apart from each other in the optical axis direction. The third sub-coil SC1b and the fourth sub-coil SC2b can be connected in parallel to each other. For example, one end and one of the other ends of the third sub-coil SC1b can be connected to one end and one of the other ends of the fourth sub-coil SC2b at a single node.

[0144] The first magnet 1252a and the second magnet 1252b can be disposed in the above-mentioned groove of the moving component 1222 and positioned to correspond to the first coil 1251a and the second coil 1251b. In addition, the optical drive magnet 1252 can be connected to the first lens assembly and the second lens assembly (or the moving component) together with the yoke to be described below.

[0145] The yoke portion 1240 may be disposed on the plate portion 1270. The yoke portion 1240 may generate an attraction force with adjacent magnets to maintain the posture of the first lens assembly and the second lens assembly. That is, the yoke portion 1240 may provide a holding force for the moving assembly. The yoke portion 1240 may include a first yoke 1241 and a second yoke 1242. The first yoke 1241 may be disposed on the first plate 1271. The second yoke 1242 may be disposed on the second plate 1272.

[0146] The base portion 1260 may be positioned between the lens portion 1220 and the image sensor in the circuit board. Components such as filters may be fixed to the base portion 1260. In addition, the base portion 1260 may be provided to surround the above-mentioned image sensor. With this configuration, since the image sensor is protected from foreign matter, etc., the reliability of the device may be improved. However, in some of the drawings, the following description will be given without the base portion.

[0147] In addition, the second camera actuator 1200 may be a zoom actuator or an AF actuator. For example, the second camera actuator 1200 may support one lens or a plurality of lenses and perform an AF function or a zoom function by moving the lens according to a predetermined control signal of the control unit.

[0148] In addition, the second camera actuator can be a fixed zoom or a continuous zoom. For example, the second camera actuator can provide movement of the lens group 1221.

[0149] In addition, the second camera actuator may be formed of a plurality of lens assemblies. For example, in addition to the first lens assembly 1222a and the second lens assembly 1222b, at least one of a third lens assembly (not shown) and a guide pin (not shown) may be provided in the second camera actuator. The above contents may be applied hereto. Therefore, the second camera actuator may perform a high-power zoom function through the driving unit.

[0150] 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 the form of an array. In addition, the image sensor may be positioned on an optical axis.

[0151] The plate portion 1270 may be in contact with the side portion of the housing. For example, the plate portion 1270 may be positioned on the outer surface (first side surface) of the first side portion of the housing, in particular the outer surface (second side surface) of the second side portion of the 2-2 housing, and may be in contact with the first side surface and the second side surface.

[0152] The second camera actuator may further include first stoppers ST1a and ST1b disposed at one end (or front end) in the housing (or 2-2 housing 1232) and second stoppers ST2a and ST2b disposed at the other end (or rear end).

[0153] The first stopper ST1 may be positioned at one end of the housing. For example, the first stopper ST1 may be positioned on the end portion of the 2-2 housing or the main barrel 1232 in the direction opposite to the optical axis direction. In an embodiment, the first stopper ST1 may be positioned on the inner side wall or inner wall of the housing or the main barrel 1232. The first stopper ST1 may be positioned on the first inner wall of the first inner wall and the second inner wall of the main barrel 1232 facing each other in the optical axis direction. In addition, the first stopper ST1 may include a 1-1 stopper ST1a disposed at one side of the first stopper ST1 and a 1-2 stopper ST1b disposed at the other side. For example, the 1-1 stopper ST1a may be disposed at one side of the first inner wall. In addition, the 1-2 stopper ST1b may be disposed at the other side of the first inner wall. The 1-1 stopper ST1a may be positioned adjacent to the first side portion. The 1-2 stopper ST1b may be positioned adjacent to the second side portion. The one side portion and the other side portion may be one side portion and a side opposite to the one side portion in the second direction.

[0154] Alternatively, the 1-1 stopper ST1a may overlap with the guide portion of the first lens assembly in the optical axis direction. The 1-2 stopper ST1b may overlap with the lens protrusion portion of the first lens assembly in the optical axis direction.

[0155] In addition, the first stopper ST1 may further include a 1-3 stopper provided at the other side portion of the main barrel 1232. The 1-3 stopper may be positioned to overlap with the guide portion of the second lens assembly 1222b in the optical axis direction.

[0156] For example, the second stopper ST2 may be disposed at the other end of the 2-2 housing or the main barrel 1232. For example, the second stopper ST2 may be positioned on the end portion of the 2-2 housing or the main barrel 1232 in the optical axis direction. In an embodiment, the second stopper ST2 may be positioned on the inner side wall or inner wall of the housing or the main barrel 1232. The second stopper ST2 may be positioned on the second inner wall of the first inner wall and the second inner wall of the main barrel 1232 facing each other in the optical axis direction. The first inner wall may be adjacent to the first camera actuator or the first lens assembly. The second inner wall may be adjacent to the image sensor.

[0157] In addition, the second stopper ST2 may include a 2-1 stopper ST2a disposed at one side of the second stopper ST2 and a 2-2 stopper ST2b disposed at the other side. The 2-1 stopper ST2a may be positioned adjacent to the first side portion. The 2-2 stopper ST2b may be positioned adjacent to the second side portion. For example, the 2-1 stopper ST2a may be disposed at one side of the first inner wall. In addition, the 2-2 stopper ST2b may be disposed at the other side of the first inner wall.

[0158] In the following, reference is made to Figure 7 and Figure 8 , the electromagnetic force will be described below based on one coil. In the camera device according to the embodiment, an electromagnetic force DEM1 can be generated between the fourth magnet 1252a and the fourth coil 1251a, so that the first lens assembly 1222a can be moved along a track positioned on the inner surface of the shell through the first spherical piece B1 in a direction parallel to the optical axis, that is, a third direction (Z-axis direction) or in a direction opposite to the third direction. In this case, the first magnet 1252a and the second magnet 1252b do not move to the area facing the edges of the first sub-coil and the second sub-coil. Therefore, an electromagnetic force is generated based on the flow of current in the adjacent areas of the first sub-coil and the second sub-coil.

[0159] As described above, in a camera device according to an embodiment, the first magnet 1252a can be set in the first lens assembly 1222a, for example, by a unipolar magnetization method. For example, in an embodiment, the surface (first surface) facing the outer surface of the first magnet 1252a can be an S pole. In addition, the outer surface of the first magnet 1252a can be a surface facing the first coil 1251a. In addition, the surface opposite to the first surface can be an N pole. Therefore, only one of the N pole and the S pole can be positioned to face the first coil 1251a. Here, a description will be given based on the outer surface of the first magnet 1252a being an S pole. In addition, the first coil 1251a is composed of a plurality of sub-coils, and current can flow in opposite directions in the plurality of sub-coils. That is, in the region of the first sub-coil SC1a adjacent to the second sub-coil SC2a, current can flow in the same manner as "DE1".

[0160] That is, the first region of the first sub-coil SC1a and the second region of the second sub-coil SC2a may have the same current direction. The first region of the first sub-coil SC1a is a region that overlaps with the first drive magnet 1252a in a direction (second direction) perpendicular to the optical axis direction and is disposed perpendicular to the optical axis direction (for example, disposed in the first direction). The second region of the first sub-coil SC2a is a region that overlaps with the first drive magnet 1252a in a direction (second direction) perpendicular to the optical axis direction and is disposed perpendicular to the optical axis direction (for example, disposed in the first direction).

[0161] In addition, as illustrated, in an embodiment, when a magnetic force is applied from the S pole of the first magnet 1252a along a second direction (Y-axis direction) and a current DE1 flows in the second coil 1251a along a first direction (X-axis direction), the electromagnetic force DEM1 can act along a third direction (Z-axis direction) according to the interaction of electromagnetic forces (e.g., Fleming's left-hand rule).

[0162] In this case, since the first coil 1251a is fixed to the side portion of the housing, the first lens assembly 1222a on which the first magnet 1252a is disposed can be moved in a direction opposite to the Z-axis direction by the electromagnetic force DEM1 according to the current direction. That is, the optical drive magnet can be moved in a direction opposite to the electromagnetic force applied to the optical drive coil. In addition, the direction of the electromagnetic force can be changed according to the current of the coil and the magnetic force of the magnet.

[0163] Therefore, the first lens assembly 1222a can be moved in a direction (two directions) parallel to the third direction or the optical axis direction along a track positioned on the inner surface of the housing through the first spherical member B1. In this case, the electromagnetic force DEM1 can be controlled to be proportional to the current DE1 applied to the first coil 1251a.

[0164] The first lens assembly 1222a or the second lens assembly 1222b may include a first recess RS1 in which the first spherical member B1 or the second spherical member B2 is seated. In addition, the first lens assembly 1222a or the second lens assembly 1222b may include a second recess RS2 in which the first spherical member B1 or the second spherical member B2 is seated. The first recess RS1 and the second recess RS2 may each be formed as a plurality of recesses. The length of the first recess RS1 along the optical axis direction (Z-axis direction) may be preset. In addition, the length of the second recess RS2 along the optical axis direction (Z-axis direction) may be preset. Therefore, the movement distance of the first spherical member and the second spherical member in the recess along the optical axis direction may be adjusted. That is, the first recess RS1 or the second recess RS2 may be a stopper for the first spherical member and the second spherical member.

[0165] In addition, in the camera device according to the embodiment, the second magnet 1252b can be provided on the second lens assembly 1222b, for example, by a single-pole magnetization method.

[0166] In addition, the first coil 1251a is composed of a plurality of sub-coils, and current can flow in opposite directions in the plurality of sub-coils. That is, in the area of ​​the first sub-coil SC1a adjacent to the second sub-coil SC2a, current can flow in the same manner as "DE1".

[0167] In addition, in an embodiment, one of the N pole and the S pole of the second magnet 1252b may be positioned to face the second coil 1251b. In addition, in an embodiment, the surface (first surface) facing the outer surface of the second magnet 1252b may be an S pole. In addition, the first surface may be an N pole. As illustrated, the following description will be given based on the first surface as an N pole.

[0168] In addition, the second coil 1251b is composed of a plurality of sub-coils, and current can flow in opposite directions in the plurality of sub-coils. That is, in the area of ​​the first sub-coil SC1b adjacent to the second sub-coil SC2b, current can flow in the same manner as "DE2".

[0169] In an embodiment, when a magnetic force DM2 is applied from the first surface (N pole) of the second magnet 1252b along a second direction (Y-axis direction) and a current DE2 flows in the second coil 1251b corresponding to the N pole along a first direction (X-axis direction), the electromagnetic force DEM2 can act along a third direction (Z-axis direction) according to the interaction of electromagnetic forces (e.g., Fleming's left-hand rule).

[0170] In this case, since the second coil 1251b is fixed to the side portion of the shell, the second lens assembly 1222b on which the second magnet 1252b is disposed can be moved in a direction opposite to the Z-axis direction by an electromagnetic force DEM2 based on the direction of the current. For example, as described above, the direction of the electromagnetic force can be changed according to the current of the coil and the magnetic force of the magnet. Therefore, the second lens assembly 1222b can be moved in a direction parallel to the third direction (Z-axis direction) along the track positioned on the inner surface of the shell by the second spherical piece B2. In this case, the electromagnetic force DEM2 can be controlled to be proportional to the current DE2 applied to the second coil 1251b.

[0171] Reference Fig. 9 In the camera device according to the embodiment, the driving part may provide driving forces F3A, F3B, F4A, and F4B that move the first lens assembly 1222a and the second lens assembly 1222b of the lens part 1220 in the third direction (Z-axis direction). As described above, the driving part may include an optical driving coil 1251 and an optical driving magnet 1252. In addition, the lens part 1220 may be moved in the third direction (Z-axis direction) by the electromagnetic force generated between the optical driving coil 1251 and the optical driving magnet 1252.

[0172] In this case, the first coil 1251a and the second coil 1251b may be disposed in holes formed in side portions (e.g., first side portions and second side portions) of the housing 1230. In addition, the second coil 1251b may be electrically connected to the second board 1272. The first coil 1251a may be electrically connected to the first board 1271. Therefore, the first coil 1251a and the second coil 1251b may receive a driving signal (e.g., current) of a driving driver on a circuit board of the circuit board 1300 through the board portion 1270.

[0173] In this case, the first lens assembly 1222a on which the first magnet 1252a is seated can be moved along the third direction (Z-axis direction) by the electromagnetic forces F3A and F3B between the first coil 1251a and the first magnet 1252a. In addition, the second lens group 1221b seated on the first lens assembly 1222a can also be moved along the third direction.

[0174] In addition, the second lens assembly 1222b on which the second magnet 1252b is seated can be moved along the third direction (Z-axis direction) by the electromagnetic forces F4A and F4B between the second coil 1251b and the second magnet 1252b. In addition, the third lens group 1221c seated on the second lens assembly 1222b can also be moved along the third direction.

[0175] Therefore, as described above, the focal length or magnification of the optical system can be changed by moving the second lens group 1221b and the third lens group 1221c. In an embodiment, the magnification can be changed by moving the second lens group 1221b. That is, zooming can be performed. In addition, the focus can be adjusted by moving the third lens group 1221c. That is, autofocus can be performed.

[0176] In addition, according to the movement method of the second lens group (or the third lens group), the second camera actuator may be fixed zoom or continuous zoom.

[0177] In addition, the first Hall sensor 1253a and the second Hall sensor 1253b may be disposed on at least one of the first sub-coil and the second sub-coil. For example, the first Hall sensor 1253a and the second Hall sensor 1253b may overlap each other in the second direction. Alternatively, the first Hall sensor 1253a and the second Hall sensor 1253b may not overlap each other in the second direction. Alternatively, the first Hall sensor 1253a and the second Hall sensor 1253b may partially overlap each other in the second direction.

[0178] According to the driving of the first lens assembly, the first lens assembly 1222a can be positioned as close to the first stoppers ST1a and ST1b as possible. In this case, the distance between the guide portion and the 1-1 stopper ST1a of the first lens assembly 1222a can be reduced. In addition, the distance between the 1-2 stopper ST1b and the lens protrusion of the first lens assembly can also be reduced.

[0179] That is, when the first lens assembly 1222a moves maximally toward the first camera actuator, the first lens assembly 1222a may collide with the 1-1 stopper ST1a and the 1-2 stopper ST1b. The 1-1 stopper and the 1-2 stopper may collide with the movement of the first lens assembly simultaneously or sequentially. In the present embodiment, the 1-1 stopper and the 1-2 stopper may collide with the movement of the first lens assembly simultaneously.

[0180] Therefore, even when a lens made of glass is provided in the first lens assembly 1222a (or the second lens assembly) (e.g., the frontmost portion), collision at the mechanical position of the first lens assembly 1222a (or the second lens assembly) can be minimized. That is, cracking of the lens can be suppressed. For example, at least one of the first lens assembly and the second lens assembly may include a lens including glass. In addition, the glass may be positioned at the outermost portion in the first lens assembly or the second lens assembly.

[0181] As a modification example, when a sequential collision occurs, shock absorption may occur mainly in a guide portion having a large volume or the like, thereby minimizing damage to the first lens assembly.

[0182] Likewise, the 2-2 stopper ST2b may collide with the second lens assembly 1222b. That is, when the second lens assembly 1222b is moved toward the image sensor or in the optical axis direction to the maximum extent, the second lens assembly 1222b may collide with the 2-2 stopper ST2b and the 2-1 stopper ST2a. Therefore, even when a lens made of glass is provided in the second lens assembly 1222b, the collision at the mechanical position of the first lens assembly 1222a can be minimized. That is, the cracking phenomenon of the lens can be suppressed. The same is true for the modified example.

[0183] That is, when the first lens assembly 1222a is moved, the 1-1 stopper ST1a and the 1-2 stopper ST1b may contact the first lens assembly 1222a. When the first lens assembly 1222a is moved to the maximum in a mechanical-to-mechanical manner, the first lens assembly 1222a may contact the first stoppers ST1a and ST1b. For example, the first lens assembly 1222a may move to an end portion in the optical axis direction or an end portion in the direction opposite to the optical axis direction. In this case, the first lens assembly 1222a may move to a point where it contacts the first stopper or the second stopper. For example, when the first lens assembly 1222a moves, the camera module may be in a telephoto state or a wide-angle state. When the first lens assembly 1222a contacts the first stopper, the camera module may be in a wide-angle state, and when the first lens assembly 1222a contacts the second stopper, the camera module may be in a telephoto state.

[0184] The impact based on the movement of the first lens assembly 1222a and the second lens assembly 1222b can be reduced by the first stopper. Therefore, as described above, the reliability of the first lens assembly 1222a and the second lens assembly 1222b and the reliability of the second lens group and the third lens group therein can be improved. In addition, since the range of movement of the first lens assembly 1222a and the second lens assembly 1222b is limited, driving such as precise magnification can be performed.

[0185] Fig.10 is a perspective view of some components of a second camera actuator according to an embodiment.

[0186] Reference Fig.10 , the first lens assembly 1222a and the second lens assembly 1222b may be disposed to be spaced apart from each other along the optical axis direction (Z-axis direction).

[0187] The second guide portion may be arranged to face the first guide portion. In an embodiment, at least a portion of the first guide portion and at least a portion of the second guide portion may overlap each other in the second direction (Y-axis direction). With this configuration, the space efficiency of the driving portion for moving the first lens assembly and the second lens assembly in the second camera actuator may be improved, thereby easily miniaturizing the second camera actuator.

[0188] As described above, the first spherical member, the first coil, etc. may be disposed adjacent to each other, and the second spherical member, the second coil, etc. may be disposed adjacent to each other.

[0189] In addition, according to the present embodiment, each of the first lens assembly 1222a and the second lens assembly 1222b may include yokes YK1 and YK2 provided on side surfaces thereof.

[0190] The first yoke YK1 may be positioned on the side surface of the first lens assembly 1222a. The second yoke YK2 may be positioned on the side surface of the second lens assembly 1222b. At least a portion of the first yoke YK1 and at least a portion of the second yoke YK2 may extend outward. Therefore, the first yoke YK1 may surround at least a portion of the side surface of the first magnet 1252a. As illustrated, the first yoke YK1 may be formed in various structures surrounding the inner surface of the first magnet 1252a and a portion of the side surface of the first magnet 1252a. For example, the first yoke YK1 may be formed by a separation member, and each separation member may be positioned on a portion of the inner surface of the first magnet 1252a and the side surface of the first magnet 1252a. Therefore, the bonding strength between the optical drive magnet of the monopolar magnetization and the yoke may be improved. Similarly, the second yoke YK2 may surround at least a portion of the side surface of the second magnet 1252b. As shown, the second yoke YK2 can be formed in various structures around the inner surface of the second magnet 1252b and a portion of the side surface of the second magnet 1252b. For example, the second yoke YK2 can be formed by partition members, and each partition member can be positioned on the inner surface of the second magnet 1252b and a portion of the side surface of the second magnet 1252b.

[0191] Furthermore, the yoke may be positioned to couple to both the optical drive coil and the optical drive magnet.

[0192] Additionally, a plurality of spherical members may be positioned on the outer surface of the lens assembly. As described above, a first spherical member may be positioned on the outer surface of the first lens assembly 1222a. A second spherical member may be positioned on the outer surface of the second lens assembly 1222b.

[0193] The first spherical member and the second spherical member can each be formed into a plurality of spherical members. For example, the first spherical member can be formed into a plurality of spherical members and arranged side by side in a concave portion of the first lens assembly 1222a along the optical axis direction (Z-axis direction). In addition, the second spherical member can be formed into a plurality of spherical members and arranged side by side in a concave portion of the second lens assembly 1222b along the optical axis direction (Z-axis direction).

[0194] For example, the second spherical member B2 may include a first sub-spherical member B2a, a second sub-spherical member B2b, and a third sub-spherical member B2c. The first sub-spherical member B2a, the second sub-spherical member B2b, and the third sub-spherical member B2c may be arranged side by side in the optical axis direction. Therefore, the first sub-spherical member B2a, the second sub-spherical member B2b, and the third sub-spherical member B2c may at least partially overlap each other in the optical axis direction.

[0195] In addition, the first sub-spherical member B2a and the second sub-spherical member B2b may be positioned at the edge between the plurality of spherical members. The third sub-spherical member B2c may be positioned between the first sub-spherical member B2a and the second sub-spherical member B2b.

[0196] The plurality of spherical members may have the same or different diameters. For example, at least some of the diameters R1, R3, and R2 of the first sub-spherical member B2a, the second sub-spherical member B2b, and the third sub-spherical member B2c may be the same. In addition, the diameters R1, R3, and R2 of the first sub-spherical member B2a, the second sub-spherical member B2b, and the third sub-spherical member B2c may be different.

[0197] In an embodiment, among the plurality of spherical members, the diameters R1 and R3 of the spherical members (the first sub-spherical member and the second sub-spherical member) positioned at the edge may be smaller than the diameter R2 of the spherical member (the third sub-spherical member) positioned at the edge. For example, the diameter R1 of the first sub-spherical member B2a and the diameter R3 of the second sub-spherical member B2b may be smaller than the diameter R2 of the third sub-spherical member B2c. With this configuration, the movement of the lens assembly through the plurality of spherical members may be accurately performed without biasing to one side.

[0198] The description of the plurality of spherical members may be applied to the first spherical member in the same manner.

[0199] In addition, the optical drive magnet can be formed as a plurality of optical drive magnets as described above and formed by a first magnet and a second magnet. In addition, the first magnet and the second magnet can be arranged to face each other and have the same polarity arranged on the outside. That is, the first surface (outer surface) of the first magnet and the first surface (outer surface) of the second magnet can have a first pole. In addition, the second surface (inner surface) of the first magnet and the second surface (inner surface) of the second magnet can have a second pole.

[0200] Fig.11 2-1 is a view for describing parts of a housing, a first lens assembly, a second lens assembly, and a driving section in a second camera actuator according to an embodiment, Fig.12 is a view for describing a portion of a first driving portion and a first plate in a second camera actuator according to an embodiment, Figures 13 to 15 It's a picture. Fig.12 Views of various usage examples, Fig.16 is a view illustrating a portion of a second driving portion and a second plate in a second camera actuator according to an embodiment, Fig.17 is a side view illustrating a portion of a driving portion in a second camera actuator according to an embodiment.

[0201] Reference Fig.11 In the second camera actuator according to the embodiment, the 2-1 housing 1231, the first lens assembly 1222a, and the second lens assembly 1222b may be positioned inside the plate portion 1270. That is, the plate portion 1270 may be disposed outside the driving portion.

[0202] As described above, the driving part may include a first driving part and a second driving part. The first driving part may include a first coil 1251a, a first magnet facing the first coil 1251a, and a first Hall sensor 1253a. In addition, the second driving part may include a second coil 1251b, a second magnet facing the second coil 1251b, and a second Hall sensor 1253b.

[0203] The coil of the driving part and the hall sensor may be disposed on an inner surface of the plate part and electrically connected to the inner surface of the plate part (eg, a terminal).

[0204] Specifically, the first coil 1251a and the first Hall sensor 1253a of the first driving part may be disposed on the board portion 1270. In addition, the first coil 1251a and the first Hall sensor 1253a may be electrically connected to the board portion 1270. In an embodiment, the first coil 1251a and the first Hall sensor 1253a may be disposed on the first board 1271 of the board portion 1270. In addition, the first coil 1251a and the first Hall sensor 1253a may be electrically connected to the first board 1271 of the board portion 1270.

[0205] In addition, the second coil 1251b and the second Hall sensor 1253b of the second driving part may be disposed on the board portion 1270. In addition, the second coil 1251b and the second Hall sensor 1253b may be electrically connected to the board portion 1270. In an embodiment, the second coil 1251b and the second Hall sensor 1253b may be disposed on the second board 1272 of the board portion 1270. In addition, the second coil 1251b and the second Hall sensor 1253b may be electrically connected to the second board 1272 of the board portion 1270.

[0206] In an implementation, the driving part may include a first coil 1251a and a second coil 1252b including a plurality of sub-coils.

[0207] In addition, the driving part may include a first hall sensor 1253a and a second hall sensor 1253b, and the first hall sensor 1253a and the second hall sensor 1253b include a plurality of sub-hall sensors.

[0208] In an embodiment, the first Hall sensor 1253a including a plurality of sub-Hall sensors may be disposed on or within the first coil 1251a. In addition, in the first Hall sensor 1253a, at least one of the plurality of sub-Hall sensors may be arranged so that the long side of at least one sub-Hall sensor is not aligned with another Hall sensor. That is, a plurality of sub-Hall sensors may be arranged in sequence in the optical axis direction (Z-axis direction), but at least one of the plurality of sub-Hall sensors may not be parallel to the remaining sub-Hall sensors. For example, the sub-Hall sensor may have a quadrilateral shape in a plan view. In this case, a sub-Hall sensor and another sub-Hall sensor among the plurality of sub-Hall sensors may be arranged so that the edges (or long sides / short sides or corners) are not parallel (not parallel) and are arranged to be misaligned.

[0209] The first coil 1251a may include a first sub-coil SC1a and a second sub-coil SC2a sequentially disposed in the optical axis direction. The first sub-coil SC1a and the second sub-coil SC2a may be disposed in the main barrel. In an embodiment, the first sub-coil SC1a and the second sub-coil SC2a may be positioned on a first side portion of the main barrel.

[0210] The first hall sensor 1253a may be disposed in at least one of the first sub coil SC1a and the second sub coil SC2a. In an embodiment, the first hall sensor 1253a may be disposed in the first sub coil SC1a.

[0211] The first Hall sensor 1253a may include a plurality of sub-Hall sensors as described above. The plurality of sub-Hall sensors (or the first Hall sensor 1253a) may include a first sub-Hall sensor HS1, a second sub-Hall sensor HS2, a third sub-Hall sensor HS3, and a fourth sub-Hall sensor HS4 arranged in sequence in the optical axis direction.

[0212] The first, second, third, and fourth sub-hall sensors HS1, HS2, HS3, and HS4 may be positioned in a hole (or coil hole) of the first sub-coil SC1a.

[0213] The second coil 1251b may include a third sub-coil SC1b and a fourth sub-coil SC2b arranged in sequence in the optical axis direction. The third sub-coil SC1b and the fourth sub-coil SC2b may be arranged in the main barrel. In an embodiment, the third sub-coil SC1b and the fourth sub-coil SC2b may be positioned on the second side portion of the main barrel.

[0214] The second hall sensor 1253b may be disposed in at least one of the third sub-coil SC1b and the fourth sub-coil SC2b. In an embodiment, the second hall sensor 1253b may be disposed in the first sub-coil SC1b.

[0215] The second Hall sensor 1253b may include a plurality of sub-Hall sensors as described above. The plurality of sub-Hall sensors (or the second Hall sensor 1253b) may include a fifth sub-Hall sensor HS5, a sixth sub-Hall sensor HS6, a seventh sub-Hall sensor HS7, and an eighth sub-Hall sensor HS8 arranged in sequence in the optical axis direction.

[0216] The fifth sub-hall sensor HS5 , the sixth sub-hall sensor HS6 , the seventh sub-hall sensor HS7 , and the eighth sub-hall sensor HS8 may be positioned in the hole (or coil hole) of the third sub-coil SC1 b .

[0217] In addition, the length of the second coil 1251b in the optical axis direction (Z axis direction) may be different from the length of the first coil 1251a in the optical axis direction. For example, the length of the second coil 1251b in the optical axis direction (Z axis direction) may be greater than the length of the first coil 1251a in the optical axis direction.

[0218] In addition, the length of the first sub-coil SC1a or the second sub-coil SC2a in the optical axis direction may be smaller than the length of the third sub-coil SC1b or the fourth sub-coil SC2b in the optical axis direction. Alternatively, the length of the third sub-coil SC1b or the fourth sub-coil SC2b in the optical axis direction may be greater than the length of the first sub-coil SC1a or the second sub-coil SC2a in the optical axis direction.

[0219] In addition, the first coil 1251a and the second coil 1251b can be positioned asymmetrically about the optical axis. That is, the maximum movement distance between the first lens assembly and the second lens assembly can have a difference corresponding to the difference between the length of the first coil 1251a and the length of the second coil 1251b. Therefore, it is easy to design lens assemblies or moving assemblies with different strokes.

[0220] In addition, the first coil 1251a and the second coil 1251b may be misaligned in at least some areas in the direction perpendicular to the optical axis (the second direction, ie, the Y-axis direction). That is, the first coil 1251a and the second coil 1251b may not partially overlap each other in the second direction.

[0221] In addition, as described above, the first hall sensor 1253a and the second hall sensor 1253b may be disposed in sub-coils facing each other or in sub-coils disposed so as not to be aligned.

[0222] In addition, in an embodiment, according to the unipolar magnetization of the optical drive magnet, the current may flow in different directions in the first sub-coil SC1a and the second sub-coil SC2a. For example, the current may flow in one of the clockwise and counterclockwise directions in the first sub-coil SC1a, and the current may flow in the other of the clockwise and counterclockwise directions in the second sub-coil SC2a. Hereinafter, this may also be applied to the third sub-coil and the fourth sub-coil.

[0223] Further references Fig.12 , the first sub-coil SC1a may include a first terminal TM11 extending to the inside of a hole (coil hole) of the first sub-coil SC1a and a second terminal TM12 extending to the outside of the first sub-coil SC1a (in a direction opposite to the inside of the coil hole).

[0224] Correspondingly, the first plate 1271 of the plate portion 1270 may include a first connection point CT11 in contact with the first terminal TM11 and a second connection point CT12 in contact with the second terminal TM12. In addition, the first plate 1271 may include a third connection point CT21 connected to the third terminal TM21 extending to the inside of the hole of the second sub-coil SC2a and a fourth connection point CT22 connected to the fourth terminal TM22 extending to the outside of the second sub-coil.

[0225] The first and second connection points CT11 and CT12 may be connection terminals for electrically connecting the first sub-coil SC1a to the first board 1271. For example, the first and second connection points CT11 and CT12 may be bonding areas or connection points for electrical connection.

[0226] The first and second sub coils SC1a and SC2a as the first coils may be connected to the inner surface 1271IS of the first plate 1271 of the plate portion. In addition, a plurality of sub hall sensors HS1 to HS4 may be disposed on the inner surface 1271IS of the first plate 1271 of the plate portion.

[0227] The first connection point CT11 and the second connection point CT12 may be disposed to be spaced apart from each other. In addition, the first connection point CT11 may be located to correspond to the position of the first terminal TM11. The second connection point CT12 may be located to correspond to the position of the second terminal TM12.

[0228] Specifically, at least one of the plurality of sub-Hall sensors may be positioned adjacent to the first connection point CT11. For example, the first sub-Hall sensor HS1 may be positioned adjacent to the first connection point CT11. Therefore, the distance between the first sub-Hall sensor HS1 and the first connection point CT11 may be smaller than the distance between the other sub-Hall sensors (the second to fourth sub-Hall sensors) and the first connection point CT11.

[0229] In addition, the first Hall sensor 1253a may have a distance spaced apart from the first sub-coil SC1a in the optical axis direction, which is smaller than the distance spaced apart from the first sub-coil SC1a in the first direction. That is, due to the arrangement of the first Hall sensor 1253a in the first sub-coil SC1a, a connection point for electrical connection may be formed on the upper portion or the lower portion of the first Hall sensor 1253a. That is, the length of the second camera actuator in the optical axis direction is compactly formed according to the stroke, and a space in which the sub-coil is electrically connected to the board may be easily ensured.

[0230] In an embodiment, at least one of the plurality of sub-Hall sensors may be disposed adjacent to the first connection point CT11, and may be disposed to overlap with the first connection point CT11 in the first direction (X-axis direction). In this case, unlike other Hall sensors, at least one of the plurality of sub-Hall sensors may be disposed to be inclined. As described above, the first sub-Hall sensor HS1 may overlap with the first connection point CT11 in the first direction, and the long side HS1s of the first sub-Hall sensor HS1 may not be parallel or parallel to the long side (e.g., HS2s) of the second to fourth sub-Hall sensors HS2 to HS4.

[0231] With this configuration, it is possible to prevent the electromagnetic force handling problem or external exposure problem that occurs when the first terminal TM11 and the second terminal TM22 extend to the outside of the first sub-coil or the outer surface of the first plate through the groove or hole of the first plate 1271. In addition, since the first terminal TM11 and the first connection point CT11 are easily connected, the reliability of the Hall sensor can be improved.

[0232] In addition, further reference Figures 13 to 15 , at least one of the plurality of sub-Hall sensors according to the embodiment may overlap with the first connection point CT11 in the first direction (X-axis direction). At least one of the plurality of sub-Hall sensors may overlap with the first connection point CT11 in the first direction (X-axis direction) for connection.

[0233] In addition, according to various usage examples, the long side HS1s of the first sub hall sensor HS1 may not be parallel to the long sides (eg, HS2s) of the second, third, and fourth sub hall sensors HS2, HS3, and HS4.

[0234] For example, the long side HS1s of the first sub-Hall sensor HS1 and the long side HS2s of the second sub-Hall sensor HS2 may have predetermined angles θ1 to θ3. For example, the predetermined angles θ1 to θ3 may not be 180 degrees. In addition, the predetermined angles θ1 to θ3 may be varied in various ways according to the position of the first connection point CT11, etc.

[0235] In addition, another Hall sensor among the plurality of sub-Hall sensors may be arranged to be misaligned with the first connection point CT11 in the first direction (X-axis direction). The second sub-Hall sensor HS2, the third sub-Hall sensor HS3, and the fourth sub-Hall sensor HS4 may be arranged to be misaligned with the first connection point CT11 in the first direction (X-axis direction). For example, the second sub-Hall sensor HS2, the third sub-Hall sensor HS3, and the fourth sub-Hall sensor HS4 may not overlap with the first connection point CT11 in the first direction.

[0236] In addition, when the first connection point CT11 overlaps with the first sub-Hall sensor HS1 in the first direction (X-axis direction), the first connection point CT11 may be disposed between the first sub-Hall sensor HS1 and the first sub-coil SC1a, or positioned in a region between the first sub-Hall sensor HS1 and the second sub-Hall sensor HS2. That is, when the first sub-Hall sensor HS1 is tilted, the first connection point CT11 may be positioned at the left side portion or the right side portion adjacent to the first connection point CT11 for maximum use of space.

[0237] In addition, the first connection point CT11 may overlap with the second sub hall sensor HS2 in the first direction (X-axis direction).

[0238] For example, the long side HS1s of the first sub Hall sensor HS1 and the long side HS2s of the second sub Hall sensor HS2 may have a predetermined angle θ4 to θ6. In this case, the second sub Hall sensor HS2 may be tilted differently from the other sub Hall sensors. In addition, the predetermined angle θ4 to θ6 may not be 180 degrees.

[0239] In addition, other Hall sensors (first sub-Hall sensor, third sub-Hall sensor, and fourth sub-Hall sensor) among the plurality of sub-Hall sensors may be arranged to be misaligned with the first connection point CT11 in the first direction (X-axis direction). The first sub-Hall sensor HS1, the third sub-Hall sensor HS3, and the fourth sub-Hall sensor HS4 may be arranged to be misaligned with the first connection point CT11 in the first direction (X-axis direction). For example, the first sub-Hall sensor HS1, the third sub-Hall sensor HS3, and the fourth sub-Hall sensor HS4 may not overlap with the first connection point CT11 in the first direction.

[0240] Even when at least one of the plurality of sub-Hall sensors is tilted differently from the remaining Hall sensors, the plurality of sub-Hall sensors according to the embodiment may have the same distance between adjacent sub-Hall sensors and between the centers of the sub-Hall sensors. That is, the first sub-Hall sensor HS1, the second sub-Hall sensor HS2, the third sub-Hall sensor HS3, and the fourth sub-Hall sensor HS4 may have the same spacing distance between adjacent sub-Hall sensors and between the centers of the first to fourth sub-Hall sensors.

[0241] For example, the center CP1 of the first sub-Hall sensor HS1, the center CP2 of the second sub-Hall sensor HS2, the center CP3 of the third sub-Hall sensor HS3, and the center CP4 of the fourth sub-Hall sensor HS4 may overlap with each other in the optical axis direction. In addition, the center CP1 of the first sub-Hall sensor HS1, the center CP2 of the second sub-Hall sensor HS2, the center CP3 of the third sub-Hall sensor HS3, and the center CP4 of the fourth sub-Hall sensor HS4 may have the same distance from the center of the adjacent sub-Hall sensor. Therefore, the driving accuracy of the first sub-Hall sensor HS1, the second sub-Hall sensor HS2, the third sub-Hall sensor HS3, and the fourth sub-Hall sensor HS4 can be maintained, and a space for electrical connection can be ensured.

[0242] The above contents of the first coil and the first Hall sensor may be applied to the second coil and the second Hall sensor in the same manner.

[0243] In addition, the fourth sub-coil SC2b may include a seventh terminal TM41 extending to the inside of the hole (coil hole) of the fourth sub-coil SC2b and an eighth terminal TM42 extending to the outside of the fourth sub-coil SC2b (in a direction opposite to the inside of the coil hole).

[0244] Correspondingly, the second plate 1272 of the plate portion 1270 may include a seventh connection point CT41 in contact with the seventh terminal TM41 and an eighth connection point CT42 in contact with the eighth terminal TM42. In addition, the second plate 1272 may include a fifth connection point CT31 connected to the fifth terminal TM31 extending to the inside of the hole of the third sub-coil SC1b and a sixth connection point CT22 connected to the sixth terminal TM32 extending to the outside of the third sub-coil.

[0245] The seventh connection point CT41 and the eighth connection point CT42 may be connection terminals for electrically connecting the fourth sub coil SC2b to the second board 1272. For example, the seventh connection point CT41 and the eighth connection point CT42 may be bonding areas or connection points for electrical connection.

[0246] The third and fourth sub coils SC1b and SC2b as the second coils may be connected to the inner surface 1272IS of the second plate 1272 of the plate portion. In addition, a plurality of sub hall sensors HS5 to HS8 may be disposed on the inner surface 1272IS of the second plate 1272 of the plate portion.

[0247] The seventh connection point CT41 and the eighth connection point CT42 may be disposed to be spaced apart from each other. In addition, the seventh connection point CT41 may be located to correspond to the position of the seventh terminal TM41. The eighth connection point CT42 may be located to correspond to the position of the eighth terminal TM42.

[0248] Specifically, at least one of the plurality of sub-Hall sensors may be positioned adjacent to the seventh connection point CT41. For example, the fifth sub-Hall sensor HS5 may be positioned adjacent to the seventh connection point CT41. Therefore, the distance between the fifth sub-Hall sensor HS5 and the seventh connection point CT41 may be smaller than the distance between the other sub-Hall sensors (the sixth to eighth sub-Hall sensors) and the seventh connection point CT41.

[0249] In addition, the second Hall sensor 1253b may have a distance spaced apart from the fourth sub-coil SC2b in the optical axis direction, which is smaller than the distance spaced apart from the fourth sub-coil SC2b in the first direction. That is, due to the arrangement of the second Hall sensor 1253b in the fourth sub-coil SC2b, a connection point for electrical connection may be formed on the upper portion or the lower portion of the second Hall sensor 1253b. That is, the length of the second camera actuator in the optical axis direction is compactly formed according to the stroke, and a space in which the sub-coil is electrically connected to the board may be easily ensured.

[0250] In an embodiment, at least one of the plurality of sub-Hall sensors may be disposed adjacent to the seventh connection point CT41, and may overlap with the seventh connection point CT41 in the first direction (X-axis direction). In this case, unlike other Hall sensors, at least one of the plurality of sub-Hall sensors may be disposed obliquely. As described above, the fifth sub-Hall sensor HS5 may overlap with the seventh connection point CT41 in the first direction, and the long side of the fifth sub-Hall sensor HS5 may not be parallel or not parallel to the long side of the sixth sub-Hall sensor HS6 to the eighth sub-Hall sensor HS8.

[0251] With this configuration, it is possible to prevent the electromagnetic force handling problem or external exposure problem that occurs when the seventh terminal TM41 and the second terminal TM22 extend to the outside of the fourth sub-coil or the outer surface of the first plate through the groove or hole of the second plate 1272. In addition, since the seventh terminal TM41 and the seventh connection point CT41 are easily connected, the reliability of the Hall sensor can be improved.

[0252] In addition, further reference Fig.17 , the first hall sensor 1253a and the second hall sensor 1253b may be arranged to be misaligned in the second direction (Y-axis direction).

[0253] The first sub-Hall sensor HS1, the second sub-Hall sensor HS2, the third sub-Hall sensor HS3 and the fourth sub-Hall sensor HS4 may not overlap with the fifth sub-Hall sensor HS5, the sixth sub-Hall sensor HS6, the seventh sub-Hall sensor HS7 and the eighth sub-Hall sensor HS8 in the second direction (Y-axis direction). In addition, the spacing distance between the first sub-Hall sensor HS1, the second sub-Hall sensor HS2, the third sub-Hall sensor HS3 and the fourth sub-Hall sensor HS4 and the adjacent sub-Hall sensor may be different from the spacing distance between the adjacent sub-Hall sensors in the fifth sub-Hall sensor HS5, the sixth sub-Hall sensor HS6, the seventh sub-Hall sensor HS7 and the eighth sub-Hall sensor HS8. For example, the spacing distance between the first sub-Hall sensor HS1, the second sub-Hall sensor HS2, the third sub-Hall sensor HS3 and the fourth sub-Hall sensor HS4 and the adjacent sub-Hall sensor may be less than the spacing distance between the adjacent sub-Hall sensors in the fifth sub-Hall sensor HS5, the sixth sub-Hall sensor HS6, the seventh sub-Hall sensor HS7 and the eighth sub-Hall sensor HS8. Therefore, the above-mentioned maximum movement distance (stroke) can be achieved in each lens assembly.

[0254] Fig.18 is a view for describing parts of a 2-1 housing, a first lens assembly, a second lens assembly, and a driving portion in a second camera actuator according to another embodiment, Fig.19 is a view for describing portions of a 2-1 housing, a first lens assembly, a second lens assembly, and a driving portion in a second camera actuator according to still another embodiment, and Fig. 20 It's a picture. Fig.19 A side view of a portion of the drive section.

[0255] Reference Fig.18 and Fig.19 , the above contents except for the contents to be described below can be applied to the second camera actuator according to each embodiment.

[0256] The first hall sensor 1253 a and the second hall sensor 1253 b may be disposed on at least one of the first sub coil and the second sub coil.

[0257] In the second camera actuator according to another embodiment, the first hall sensor 1253a may be disposed in the second sub coil SC2a, and the second hall sensor 1253b may be disposed in the third sub coil SC1b.

[0258] In addition, in the second camera actuator according to still another embodiment, the first hall sensor 1253a and the second hall sensor 1253b may partially overlap each other in the second direction.

[0259] For example, the first Hall sensor 1253a may be disposed in the first sub-coil SC1a, and the second Hall sensor 1253b may be disposed in the third sub-coil SC1b. Alternatively, the first Hall sensor 1253a may be disposed in the second sub-coil SC2a, and the second Hall sensor 1253b may be disposed in the fourth sub-coil SC2b.

[0260] Further references Fig. 20 As described above, the first Hall sensor 1253a may be disposed in the first sub-coil SC1a, and the second Hall sensor 1253b may be disposed in the third sub-coil SC1b. In addition, the first Hall sensor 1253a may partially overlap with the second Hall sensor 1232b in the second direction. In addition, a portion of the second Hall sensor 1253b may overlap with the first sub-coil SC1a in the second direction.

[0261] In this way, the first Hall sensor 1253a and the second Hall sensor 1253b can be set in each sub-coil of the sub-coil of the first coil and the sub-coil of the second coil. In addition, one sub-Hall sensor among the plurality of sub-Hall sensors can be set differently from the other sub-Hall sensors for connection between the board and the sub-coil.

[0262] Fig.21 is a schematic diagram illustrating a circuit board according to an embodiment.

[0263] Reference Fig.21 As described above, the circuit board 1300 according to the embodiment may include a first circuit board portion 1310 and a second circuit board portion 1320. The first circuit board portion 1310 may be positioned below the base and coupled to the base. In addition, the image sensor IS may be disposed on the first circuit board portion 1310. In addition, the first circuit board portion 1310 and the image sensor IS may be electrically connected. That is, the base may be positioned at the rear end of the second camera actuator, and the image sensor and the circuit board (first circuit board portion) may be positioned at the rear end of the base. The base may include a filter (e.g., infrared). The circuit board 1300 may include the above-mentioned image sensor and sensor base.

[0264] In addition, the second circuit board portion 1320 can be positioned on the side portion of the base. In particular, the second circuit board portion 1320 can be positioned on the first side portion of the base. Therefore, the second circuit board portion 1320 can be positioned adjacent to the first coil positioned adjacent to the first side portion for simple electrical connection. In addition, the second circuit board unit 1320 can be positioned on the second side portion of the base. As described above, a plurality of second circuit board portions 1320 can be formed. However, the present invention is not limited thereto, and the second circuit board unit 1320 can be arranged only on either one of the first side portion and the second side portion.

[0265] In addition, the circuit board 1300 may further include a fixing plate (not shown) positioned on a side surface of the circuit board 1300. Therefore, even when the circuit board 1300 is made of a flexible material, the circuit board 1300 may be coupled to the base while maintaining rigidity through the fixing plate.

[0266] The second circuit board portion 1320 of the circuit board 1300 may be positioned on a side portion of the driving portion 1250. The circuit board 1300 may be electrically connected to the first driving portion and the driving portion. For example, the electrical connection may be made by surface mounting technology (SMT). However, the present invention is not limited to this method.

[0267] The circuit board 1300 may include a circuit board having a wiring pattern that can be electrically connected, such as a rigid printed circuit board (PCB), a flexible PCB, or a rigid-flexible PCB. However, the present invention is not limited to these types.

[0268] In addition, the circuit board 1300 may be electrically connected to another camera module in the terminal or a processor of the terminal. Therefore, the above-mentioned camera actuator and the camera module including the camera actuator may transmit and receive any signal in the terminal.

[0269] Fig. 22 is a perspective view of a mobile terminal to which a camera module according to an embodiment is applied.

[0270] like Fig. 22 As illustrated in FIG. 1 , the mobile terminal 1500 according to the embodiment may include a camera module 1000 , a flash module 1530 , and an AF device 1510 disposed on a rear surface thereof.

[0271] The camera module 1000 may include an image capturing function and an AF function. For example, the camera module 1000 may include an AF function using an image.

[0272] The camera module 1000 processes image frames of a still image or a moving image obtained by an image sensor in a capture mode or a video call mode.

[0273] The processed image frames may be displayed on a predetermined display or stored in a memory.A camera (not shown) may also be provided on the front surface of the body of the mobile terminal.

[0274] 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 or zoom function.

[0275] The flash module 1530 may include a light emitting device for emitting light in the flash module. The flash module 1530 may be operated by a camera operation of the mobile terminal or a user's control.

[0276] The AF device 1510 may include one of the packages of the surface light emitting laser device as the light emitting unit.

[0277] The AF device 1510 may include an AF function using laser. The AF device 1510 may be mainly used in a case where the AF function using the image of the camera module 1000 is degraded, for example, at a proximity of 10 m or less or in a dark environment.

[0278] The AF device 1510 may include a light emitting unit including a vertical cavity surface emitting laser (VCSEL) semiconductor device and a light receiving unit such as a photodiode, the light emitting unit including a vertical cavity surface emitting laser (VCSEL) semiconductor device, and the light receiving unit for converting light energy into electric energy.

[0279] Fig.23 is a perspective view of a vehicle to which a camera module according to an embodiment is applied.

[0280] For example, Fig.23 is an external view of a vehicle including a vehicle driving assistance device to which the camera module 1000 according to the embodiment is applied.

[0281] Reference Fig.23 The vehicle 700 according to the embodiment may include wheels 13FL and 13FR that are rotated by a power source and a predetermined sensor. Although the sensor may be the camera sensor 2000, the present invention is not limited thereto.

[0282] The camera sensor 2000 may be a camera sensor applied to the camera module 1000 according to the embodiment. The vehicle 700 according to the embodiment may acquire 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 a lane line is not recognized, and generate a virtual lane line when the lane line is not recognized.

[0283] For example, the camera sensor 2000 may acquire a front image by capturing a view in front of the vehicle 700, and a processor (not shown) may acquire image information by analyzing an object included in the front image.

[0284] For example, when lane lines, adjacent vehicles, obstacles to travel, and objects such as a central divider corresponding to an indirect road sign, a curb, or a tree are captured in an image captured by the camera sensor 2000, the processor may detect the object and include the detected object in the image information. At this time, the processor may further supplement the image information by acquiring distance information of the object detected by the camera sensor 2000.

[0285] The image information may be information about an object captured in an image. The camera sensor 2000 may include an image sensor and an image processing module.

[0286] The camera sensor 2000 may process a still image or a moving image obtained through an image sensor (eg, a complementary metal oxide semiconductor (CMOS) or a charge coupled device (CDD)).

[0287] The image processing module may process a static image or a moving image acquired by the image sensor to extract necessary information, and transmit the extracted information to the processor.

[0288] In this case, although the camera sensor 2000 may include a stereo camera for improving the measurement accuracy of the object and further ensuring information such as the distance between the vehicle 700 and the object, the present invention is not limited thereto.

[0289] Although each embodiment has been mainly described above, these embodiments are only illustrative and do not limit the present invention, and it is known to those skilled in the art that the present invention belongs to that various modifications and applications not illustrated above are possible without departing from the basic characteristics of each embodiment. For example, each component specifically illustrated in each embodiment can be implemented by modification. In addition, the differences related to these modifications and applications should be interpreted as being included within the scope of the present invention defined in the appended claims.

Claims

1. A camera actuator, comprising: case; a first lens assembly and a second lens assembly, wherein the first lens assembly and the second lens assembly move along an optical axis in the housing; as well as a driving portion that moves the first lens assembly and the second lens assembly, wherein the driving part includes a first coil and a first Hall sensor, the first coil includes a first sub-coil and a second sub-coil arranged in sequence in the direction of the optical axis, the first Hall sensor includes a plurality of sub-Hall sensors arranged in one of the first sub-coil and the second sub-coil, and A long side portion of at least one of the plurality of sub-Hall sensors is disposed to be misaligned with long sides of the other Hall sensors.

2. The camera actuator according to claim 1, wherein: The first Hall sensor is disposed inside at least one of the first sub-coil and the second sub-coil.

3. The camera actuator according to claim 1, wherein: The first sub-coil includes a first terminal extending to an inside of a hole of the first sub-coil and a second terminal extending to an outside of the first sub-coil.

4. The camera actuator according to claim 3, further comprising a plate portion provided outside the driving portion, in, The first coil is disposed on the plate portion, and The plate portion includes a first connection point in contact with the first terminal and a second connection point in contact with the second terminal.

5. The camera actuator according to claim 4, wherein: At least one sub Hall sensor among the plurality of sub Hall sensors is adjacent to the first connection point.

6. The camera actuator according to claim 4, wherein: At least one sub-Hall sensor among the plurality of sub-Hall sensors overlaps with the first connection point in a direction perpendicular to the optical axis direction.

7. The camera actuator according to claim 6, wherein: Other Hall sensors among the plurality of sub-Hall sensors are arranged to be misaligned with the first connection point in a direction perpendicular to the optical axis direction.

8. The camera actuator according to claim 4, wherein: The plurality of sub-hall sensors include a first sub-hall sensor, a second sub-hall sensor, a third sub-hall sensor, and a fourth sub-hall sensor which are sequentially disposed in the optical axis direction.

9. The camera actuator according to claim 8, wherein: The first connection point overlaps with the first sub-Hall sensor in a direction perpendicular to the optical axis direction.

10. The camera actuator according to claim 8, wherein: The first connection point is disposed between the first sub-Hall sensor and the second sub-Hall sensor.

11. The camera actuator according to claim 8, wherein: A long side of the first sub-Hall sensor is not parallel to long sides of the second sub-Hall sensor, long sides of the third sub-Hall sensor, and long sides of the fourth sub-Hall sensor.

12. The camera actuator according to claim 8, wherein: The first connection point overlaps with the second sub-Hall sensor in a direction perpendicular to the optical axis direction.

13. The camera actuator according to claim 8, wherein: The first sub-hall sensor, the second sub-hall sensor, the third sub-hall sensor, and the fourth sub-hall sensor have the same spacing distance between adjacent sub-hall sensors and between centers of the first sub-hall sensor to the fourth sub-hall sensor.

14. The camera actuator according to claim 4, wherein: The first coil is connected to the inner surface of the plate portion, and The plurality of sub-Hall sensors are disposed on the inner surface of the plate portion.

15. The camera actuator according to claim 2, wherein: The first Hall sensor has a spacing distance from the first sub-coil in the optical axis direction, and the spacing distance is smaller than a spacing distance between the first Hall sensor and the coil in a direction perpendicular to the optical axis direction.

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