Actuator and camera device comprising same

Abstract

An embodiment comprises: a housing; a lens unit disposed in the housing; a magnet disposed on the lens unit; a core disposed in the housing; and a coil which is wound around the core and moves the lens unit in a first direction by interaction with the magnet, wherein the core has a body including a core portion disposed within a hollow of the coil and a first extension portion disposed between the coil and the magnet and extending from the core portion in the first direction.

Description

Actuator and camera device including the same

[0001] The embodiment relates to an actuator and a camera device including the same.

[0002] A camera device is a device that captures a subject as a photo or video, and is installed on portable devices, drones, vehicles, etc. In order to improve the quality of the image, the camera device may have an image stabilization (IS) function, such as an optical image stabilizer (OIS), an autofocus (AF) function, and / or a zooming function, which compensates for or prevents image shaking caused by the user's movements.

[0003] The embodiment provides an actuator capable of increasing an electromagnetic force by interaction between a coil and a magnet unit for moving a lens unit, and a camera device including the same.

[0004] Additionally, embodiments provide an actuator and a camera device that can increase the stroke range of a lens assembly for a zoom or focus operation and reduce the current consumption required for a zoom or focus operation.

[0005] An actuator according to an embodiment includes a housing; a lens portion disposed within the housing; a magnet disposed within the lens portion; a core disposed within the housing; and a coil wound around the core and moving the lens portion in a first direction by interaction with the magnet, wherein the core has a body including a core portion disposed within a hollow portion of the coil and a first extension portion disposed between the coil and the magnet and extending in the first direction from the core portion.

[0006] The body of the core may include a second extension portion positioned opposite the first extension portion based on the core portion and extending in the first direction from the core portion. The coil may overlap the first extension portion in a second direction perpendicular to the first direction.

[0007] The core portion includes a plurality of core portions spaced apart from each other, the coil includes a plurality of coil units arranged in the first direction, each of the plurality of core portions is arranged within a corresponding hollow portion of one of the plurality of coil units, and the first extension portion can extend from each of the plurality of core portions.

[0008] The first extension portion may include a first region and a second region extending in opposite directions with respect to the core portion.

[0009] The core may include a gap formed in a region of a first extension portion located between two adjacent core portions among the plurality of core portions.

[0010] The core may include a first connecting portion disposed between a first end of the first extension portion and a first end of the second extension portion, and a second connecting portion disposed between a second end of the first extension portion and a second end of the second extension portion.

[0011] The body of the core may include a plurality of plates stacked in a third direction, the third direction being perpendicular to the first direction and the second direction, and the second direction being perpendicular to the first direction and a direction in which the coil and the magnet face each other.

[0012] The core may further include an insulating member disposed between the plurality of plates.

[0013] The actuator includes a cloud member disposed between the lens portion and the housing, and an attractive force can be applied between the first extension portion and the magnet.

[0014] The above magnet can overlap with three adjacent core parts among the plurality of core parts.

[0015] The actuator may include a substrate disposed in the housing, and the core may be disposed between the substrate and the magnet. The substrate may include an opening exposing at least a portion of the second extension. The magnet may be positioned closer to the first extension than the coil. Signals having different phases may be supplied to each of three adjacent coil units among the plurality of coil units.

[0016] According to another embodiment, an actuator includes a housing; a lens portion disposed within the housing; a magnet disposed in the lens portion; a core disposed in the housing; and a coil that moves the lens portion in a first direction by interaction with the magnet, wherein the coil includes a plurality of coil units disposed in the first direction, and the core includes a plurality of core portions disposed spaced apart from each other in the first direction; and a first extension portion disposed between the lens portion and the coil and extending in the first direction from the plurality of core portions, wherein each of the plurality of coil units can be wound around a corresponding one of the plurality of core portions. The core includes a second extension portion positioned opposite the first extension portion, and the plurality of coil units can overlap the first extension portion in a direction in which the coil and the magnet face each other.

[0017] According to another embodiment, an actuator includes a lens barrel; a magnet disposed on the lens barrel; and a coil that moves the lens barrel in a first direction by interacting with the magnet, wherein the coil includes a first coil unit and a second coil unit that are disposed spaced apart from each other in the first direction, and the magnet includes a first magnet portion, a second magnet portion, and a third magnet portion disposed in the first direction, a first partition wall disposed between the first magnet portion and the second magnet portion, and a second partition wall disposed between the second magnet portion and the third magnet portion, wherein a length of the first magnet portion in the first direction and a length of the third magnet portion in the first direction are each greater than a length of the second magnet portion in the first direction.

[0018] The length of each of the first and second bulkheads in the first direction may be less than the length of the second magnet portion in the first direction. The length of the first magnet portion in the first direction may be greater than the length of the hollow portion of each of the first and second coil units in the first direction. The length of the third magnet portion in the first direction may be greater than the length of the hollow portion of each of the first and second coil units in the first direction.

[0019] The length of the second magnet portion in the first direction may be equal to the distance between the first coil unit and the second coil unit. The distance between the first coil unit and the second coil unit may be smaller than the length of the hollow portion of the first coil unit in the first direction and the length of the hollow portion of the second coil unit in the first direction.

[0020] Each of the first to third magnet portions includes an N pole and an S pole, and the first magnet portion and the second magnet portion may be arranged so that their polarities face each other in the first direction, and the second magnet portion and the third magnet portion may be arranged so that their polarities face each other in the first direction.

[0021] The lens barrel may include a position sensor that detects displacement of the lens barrel, and the position sensor may include a first sensor disposed within the hollow of the first coil unit and a second sensor disposed within the hollow of the second coil unit.

[0022] The total length of the first magnet in the first direction may be less than a maximum distance from one end of the first coil unit to one end of the second coil unit. Each of the first and second coil units may be a coil ring wound clockwise or counterclockwise with respect to an axis parallel to the second direction. The first coil unit includes a first portion and a second portion facing each other in the first direction, and a third portion and a fourth portion positioned between the first portion and the second portion and facing each other, and the second coil unit includes a fifth portion and a sixth portion facing each other in the first direction, and a seventh portion and an eighth portion positioned between the fifth portion and the sixth portion and facing each other, and the lengths of each of the first portion, the second portion, the fifth portion, and the sixth portion in the first direction may be less than a length of the second magnet portion in the first direction.

[0023] The length of each of the first and second bulkheads in the first direction may be less than or equal to the length of each of the first portion, the second portion, the fifth portion, and the sixth portion in the first direction.

[0024] In a section where the third magnet portion overlaps the second coil unit in a second direction perpendicular to the first direction and the first partition wall and the second partition wall overlap the first coil unit in the second direction, a driving signal can be supplied only to the second coil unit among the first and second coil units.

[0025] In a section where the second magnet portion overlaps the hollow of the second coil unit in a second direction perpendicular to the first direction, the first partition wall overlaps the first coil unit in the second direction, and the second partition wall overlaps the second coil unit in the second direction, a driving signal may be supplied only to the first coil unit among the first and second coil units.

[0026] In a section where the first magnet portion does not overlap the coil in a second direction perpendicular to the first direction, and the second and third magnet portions overlap the first coil unit in the second direction, a driving signal may be supplied only to the first coil unit among the first and second coil units.

[0027] In a section where the second magnet portion does not overlap the coil in a second direction perpendicular to the first direction and the second and third magnet portions overlap the second coil unit in the second direction, a driving signal may be supplied only to the second coil unit among the first and second coil units.

[0028] According to another embodiment, an actuator includes a lens barrel; a magnet disposed on the lens barrel; and a coil that moves the lens barrel in a first direction by interacting with the magnet, wherein the coil includes a first coil unit and a second coil unit that are disposed to be spaced apart from each other in the first direction, and the magnet includes a first magnet portion, a second magnet portion, and a third magnet portion disposed in the first direction, a first partition wall disposed between the first magnet portion and the second magnet portion, and a second partition wall disposed between the second magnet portion and the third magnet portion, wherein a length of the first magnet portion in the first direction and a length of the third magnet portion in the first direction may each be greater than a separation distance between the first coil unit and the second coil unit.

[0029] An embodiment may include a core wound with a coil, thereby increasing the electromagnetic force due to the interaction between the coil and the magnet unit to move the lens portion.

[0030] Additionally, the embodiment may include a core including a first extension portion disposed between the coil and the magnet unit, thereby increasing a holding force acting between the magnet unit and the first extension portion to support the lens portion.

[0031] Additionally, in embodiments, an insulating material may be placed between the plates of the core, thereby preventing the generation of eddy currents and reduction of electromagnetic force.

[0032] Additionally, the embodiment may increase the stroke range of the lens assembly for zoom or focus operations and may reduce the current consumption required for zoom or focus operations.

[0033] Figure 1 is a perspective view of an actuator according to an embodiment.

[0034] Figure 2 is an exploded perspective view of the actuator of Figure 1.

[0035] Fig. 3a is a cross-section of the actuator of Fig. 1 in the AB direction.

[0036] Fig. 3b is a cross-section of the actuator of Fig. 1 in the CD direction.

[0037] Figure 4a is a first perspective view of the housing.

[0038] Figure 4b is a second perspective view of the housing.

[0039] Figure 5a is a first separated perspective view of the lens unit and the driving unit.

[0040] Figure 5b is a second separated perspective view of the lens unit and the driving unit.

[0041] Figure 6a is a plan view of the first substrate, the first core, the coil units of the first coil, and the first magnet unit.

[0042] FIG. 6b is a cross-sectional view of the first substrate, the first core, the coil units of the first coil, and the first magnet unit.

[0043] Figure 7 shows the driving signal supplied to the coil units of the first coil.

[0044] Figure 8a is a perspective view of the first core and connecting portion.

[0045] Figure 8b is an exploded perspective view of the first core and the connecting portion.

[0046] Figure 9a shows the first to third drive signals supplied to three adjacent coil units.

[0047] Figure 9b shows the electromagnetic force between three adjacent coil units and the first magnet unit.

[0048] Figure 10 shows the assembly order of the first core, the first coil, and the first substrate.

[0049] Figure 11 shows an exploded perspective view of a first core according to another embodiment.

[0050] FIG. 12 is a schematic drawing of a camera device including the actuator of FIG. 1.

[0051] Fig. 13 is a perspective view of a camera device according to an embodiment.

[0052] Fig. 14 is an exploded perspective view of the actuator of Fig. 13.

[0053] Fig. 15a is a cross-section of the actuator of Fig. 13 in the AB direction.

[0054] Fig. 15b is a cross-section in the CD direction of the actuator of Fig. 13.

[0055] Figure 16a is a first perspective view of the housing.

[0056] Figure 16b is a second perspective view of the housing.

[0057] Figure 17a is a first separated perspective view of the lens unit and the driving unit.

[0058] Figure 17b is a second separated perspective view of the lens unit and the driving unit.

[0059] Figure 18a is a plan view of the first magnet, the coil units of the first coil, and the first position sensor.

[0060] Figure 18b is a cross-sectional view of the coil units of the first magnet and the first coil.

[0061] Figures 19a and 19b illustrate step-by-step control of drive signals supplied to the first coil for movement of the first magnet in the rearward direction.

[0062] Figures 20a and 20b illustrate step-by-step control of drive signals supplied to the first coil for forward movement of the first magnet.

[0063] Figure 21 shows the stroke range of the lens section by the drive coil and drive magnet according to a comparative example.

[0064] Fig. 22 is a schematic drawing of the camera device of Fig. 13.

[0065] Fig. 23 shows a perspective view of an optical device according to an embodiment.

[0066] Figure 24 shows a configuration diagram of the optical device illustrated in Figure 23.

[0067] Hereinafter, embodiments of the present invention that can specifically achieve the above purpose will be described with reference to the attached drawings.

[0068] In the description of the embodiments, when it is described that each element is formed "on or under", "on or under" includes both cases where two elements are in direct contact with each other or where one or more other elements are formed by being disposed indirectly between the two elements. In addition, when it is expressed as "on or under", it can include the meaning of not only the upward direction but also the downward direction based on one element.

[0069] Additionally, relational terms such as “first” and “second,” “upper / upper / lower,” and “lower / lower / below” used hereinafter may be used only to distinguish one entity or element from another entity or element, without necessarily requiring or implying any physical or logical relationship or order between such entities or elements. In addition, the same reference numbers represent the same elements throughout the description of the drawings.

[0070] Furthermore, terms such as "include," "comprise," or "have" described above, unless specifically stated otherwise, imply that the corresponding component may be included, and thus should be interpreted to include other components rather than excluding other components. Furthermore, terms such as "corresponding" described above may include at least one of the meanings of "opposite" or "overlapping."

[0071] Hereinafter, a camera device according to an embodiment and an optical device including the same will be described with reference to the attached drawings. For convenience of explanation, the camera device according to the embodiment will be described using a Cartesian coordinate system (x, y, z), but it may be described using another coordinate system, and the embodiment is not limited thereto. In each drawing, the X-axis and the Y-axis may mean a direction perpendicular to the Z-axis, which is the optical axis (OA) direction.

[0072] In addition, the Z-axis direction, which is the optical axis (OA) direction, can be expressed as any one of the first direction, the second direction, and the third direction, the X-axis direction can be expressed as any one of the other of the first direction, the second direction, and the third direction, and the Y-axis direction can be expressed as any one of the other of the first direction, the second direction, and the third direction. In addition, the X-axis can be expressed as any one of the first axis and the second axis, and the Y-axis can be expressed as any one of the other of the first axis and the second axis. The X-axis direction can be expressed as any one of the first axis direction and the second axis direction, and the Y-axis direction can be expressed as any one of the other of the first axis direction and the second axis direction. For example, the optical axis (OA) can be the optical axis of the lens unit (620). In addition, the optical axis (OA) can be perpendicular to the sensor surface of the image sensor and pass through the center of the image sensor. The optical axis direction may be the direction of the optical axis (OA) of the lens unit (620) or a direction parallel to the optical axis (OA).

[0073] The actuator according to the embodiment can perform a zoom function and an auto-focusing function. The 'zoom function' may be a zooming function that enlarges or reduces a distant subject using a zoom lens.

[0074] Additionally, the 'auto focusing function' may be a function that automatically focuses on a subject by moving the focus lens in the direction of the optical axis according to the distance to the subject in order to obtain a clear image of the subject on the image sensor.

[0075] The camera device according to the embodiment may perform an image stabilization function. The 'image stabilization function' may be a function that moves the lens in a direction perpendicular to the optical axis or tilts the lens relative to the optical axis to offset vibration (or movement) caused by the user's hand shaking.

[0076] Hereinafter, the actuator may be replaced with a lens shift device, a lens drive device, or a motor. In addition, the term "camera device" below may be replaced with "camera," "camera module," "camera camera," or "camera camera."

[0077] FIG. 1 is a perspective view of an actuator (100) according to an embodiment, FIG. 2 is an exploded perspective view of the actuator (100) of FIG. 1, FIG. 3a is a cross-section of the actuator (100) of FIG. 1 in the AB direction, FIG. 3b is a cross-section of the actuator (100) of FIG. 1 in the CD direction, FIG. 4a is a first perspective view of a housing (610), FIG. 4b is a second perspective view of the housing (610), FIG. 5a is a first separated perspective view of a lens unit (620) and a driving unit (630), FIG. 5b is a second separated perspective view of the lens unit (620) and a driving unit (630), and FIG. 6a is a first substrate (192), a first core (38A), coil units (31 to 36) of a first coil (120A), and a first FIG. 6b is a plan view of a magnet unit (130A), FIG. 6b is a cross-sectional view of a first substrate (192), a first core (38A), coil units (31 to 36) of a first coil (120A), and a first magnet unit (130A), FIG. 7 shows a driving signal supplied to the coil units (31 to 36) of the first coil (120A), FIG. 8a is a perspective view of a first core (38A) and a connecting portion (60), and FIG. 8b is an exploded perspective view of the first core (38A) and a connecting portion (60). In FIG. 1, covers (614, 615) illustrated in FIG. 2 and FIG. 5b are omitted.

[0078] The actuator (100) can move the lens parts (622, 624) in the optical axis direction, thereby performing a zoom function and / or an auto focus function.

[0079] Referring to FIGS. 1 to 8B, the actuator (100) may include a lens unit (620) and a driving unit (630) that moves the lens unit (620) in a first direction (e.g., in the optical axis direction or the Z-axis direction).

[0080] The actuator (100) may include a housing (610) that accommodates or supports a lens unit (620) and a driving unit (630). For example, the lens unit (620) may be disposed within the housing (610). The lens unit (620) may be a “moving unit” that is movable in a first direction with respect to a fixed unit. For example, the fixed unit may include a housing (610) and a configuration coupled with the housing (610). For example, the fixed unit may include at least one of a coil (120), a core (38), a circuit board (190), and a cover (48, 49).

[0081] The lens unit (620) may be replaced with a “lens assembly.” For example, the lens unit (620) may include a plurality of lens units (or lens assemblies).

[0082] In FIG. 2, the lens unit (620) may include two lens units (622, 624). In another embodiment, the lens unit (630) may include three or more lens units. For example, the lens unit (622) and the lens assembly (623) may be arranged to correspond to, face, or overlap each other in the first direction.

[0083] The actuator (100) may further include a lens unit (640) positioned in front of the lens unit (620). For example, the lens unit (640) may be positioned on the opposite side of the lens unit (624) with respect to the lens unit (622). For example, the lens unit (640) may be a fixed lens unit (or fixed lens assembly) that does not move in the optical axis direction and has a fixed position.

[0084] The lens unit (640) may include a first lens array (642) (or a first lens group). For example, the lens unit (640) may include a lens barrel (643) and a first lens array (642) coupled with the lens barrel (643). The lens barrel (643) may be alternatively referred to as a “housing” or a “lens carrier.” In addition, the lens barrel (643) may be positioned in front of the lens unit (622). The lens barrel (643) may be coupled with the housing (610).

[0085] Although the lens unit (640) is represented as being included in the actuator (100), in other embodiments it may be a separate component not included in the actuator (100). In yet other embodiments, the third lens unit (640) may be omitted.

[0086] Also, in another embodiment, one of 640, 622, and 624 may be represented as a “first lens unit (or first lens assembly)”, another of 640, 622, and 624 may be represented as a “second lens unit (or second lens assembly)”, and the remaining other of 640, 622, and 624 may be represented as a “third lens unit (or third lens assembly)”. For example, in the embodiment, the third lens unit (640) may be a “fixed lens unit”, and each of the first lens unit (622) and the second lens unit (624) may be a “moving lens unit”.

[0087] For example, the third lens unit (640) can perform a focal function that focuses parallel light at a specific location. In addition, the first lens unit (622) can perform a variator function that refocuses the image focused by the third lens unit (640), which is a condenser, at another location. Meanwhile, in the first lens unit (622), the distance to the subject or the image distance may change significantly, so the magnification may change significantly, and the first lens unit (622), which is a variator, may play an important role in the change in the focal length or magnification of the optical system. Meanwhile, the image focused by the first lens unit (622), which is a variator, may have a slight difference depending on the location. In addition, the second lens unit (624) can perform a position compensation function for the image focused by the variator. For example, the second lens unit (624) may perform a compensator function that accurately focuses the point imaged by the first lens unit (622), which is a variable, onto the pixels of the image sensor (540). For example, the first lens unit (622) may be a zoom lens assembly that performs a zooming function, and the second lens unit (624) may be a focus lens assembly that performs an autofocus function.

[0088] The housing (610) may have a polyhedral (e.g., rectangular) shape with a space inside to accommodate or support the lens unit (620) and the driving unit (630). The housing (610) may also be expressed as a “base,” “holder,” or case.

[0089] For example, the housing (610) may include a body (612) including an upper portion (142A) (or upper plate), a lower portion (142B) (or lower plate), and a plurality of side portions (141-1 to 141-4) disposed between the upper portion (142A) and the lower portion (142B). The side portions (141-1 to 141-4) may be alternatively expressed as “side plates” or “side walls.” For example, the first side portion (141-1) and the second side portion (141-2) may face each other or be positioned opposite each other in a second direction (e.g., in the Y-axis direction), and the third side portion (141-3) and the fourth side portion (141-3) may face each other or be positioned opposite each other in a first direction (e.g., in the Z-axis direction).

[0090] A first opening (41A) (or first hole) for exposing one end of the lens unit (620) may be formed in a side portion (141-3) of the housing (610). A second opening (41B) (or second hole) for exposing the other end of the lens unit (620) may be formed in a side portion (141-4) of the housing (610). In addition, an opening (41C) (or third hole) for placing or settling a first coil (120A) may be formed in a side portion (141-1) of the housing (610). An opening (41D) (or third hole) for placing or settling a second coil (120B) may be formed in a side portion (141-4) of the housing (610). Each of the openings (41C, 41D) is in the form of a through hole, but may be in the form of a recess in other embodiments. For example, each of the openings (41C, 41D) may include two or more openings. In another embodiment, each of the openings (41C, 41D) may include one.

[0091] In order to guide movement of the lens unit (620) in the optical axis direction, the housing (610) may include at least one guide unit (43) formed on the inner surface of the housing (610). For example, the at least one guide unit (43) may include at least one protrusion (44A to 44C) formed on at least one of the upper portion (142A) or the lower portion (142B) of the housing (610). In addition, the guide unit (43) may include at least one groove (43A to 43D) formed between the at least one protrusion (44A to 44C) and the side portion of the housing (140). For example, the first protrusion (44A) may be arranged on the inner surface of the lower portion (142B) of the housing (610), and the second protrusion (44B) may be formed on the inner surface of the upper portion (142A) of the housing (610) so as to correspond to, face, or overlap with the first protrusion (44A) in a third direction (e.g., in the X-axis direction). The first and second protrusions (44A, 44B) may be arranged at a preset interval on the inner surface of the side portion (141-1) of the housing (610).

[0092] For example, the first groove (43A) may be formed on the inner surface of the lower portion (142B) of the housing (610). The first groove (43A) may be arranged adjacent to the lower portion of the inner surface of the side portion (141-1) of the housing (610). For example, the first groove (43A) may be formed between the first protrusion (44A) and the inner surface of the side portion (141-1) of the housing (610). For example, the second groove (43B) may be formed on the inner surface of the lower portion (142B) of the housing (610). The second groove (43B) may be arranged adjacent to the upper portion of the inner surface of the side portion (141-1) of the housing (610). For example, the second groove (43B) may be formed between the second protrusion (44B) and the inner surface of the side portion (141-1) of the housing (610).

[0093] For example, the third protrusion (44C) may be arranged on the inner surface of the lower portion (142B) of the housing (610), and the fourth protrusion (44D) may be formed on the inner surface of the upper portion (142A) of the housing (610) to correspond to, face, or overlap with the third protrusion (44C) in the second direction (X-axis direction). The third and fourth protrusions (44C, 44D) may be arranged at a predetermined interval on the inner surface of the side portion (141-2) of the housing (610). For example, the third groove (43C) may be formed on the inner surface of the upper portion (142A) of the housing (610). The third groove (43C) may be arranged adjacent to the lower portion of the inner surface of the side portion (141-2) of the housing (610). For example, the third groove (43C) may be formed between the third protrusion (44C) and the inner surface of the side portion (141-2) of the housing (610). For example, the fourth groove (43D) may be formed on the inner surface of the upper portion (142A) of the housing (610). For example, the fourth groove (43D) may be arranged adjacent to the upper portion of the inner surface of the side portion (141-2) of the housing (610). For example, the fourth groove (43D) may be formed between the fourth protrusion (44D) and the inner surface of the side portion (141-2) of the housing (610).

[0094] For example, a groove (42A, 42B) may be formed on the inner surface of at least one of the sides (141-1, 141-2) of the housing (610) to accommodate or place at least a portion of the cloud members (B1 to B8). For example, a groove (e.g., 43A, 43B) may be formed on the inner surface of the side (141-1, 141-2) of the housing (140) adjacent to at least one of the first to fourth grooves (43A to 43D). In FIG. 4A, two grooves (e.g., 43A, 43B) are formed, but in other embodiments, a groove corresponding to each of the first to fourth grooves may be formed.

[0095] The support portion (29B) of the lens portion (622) can be arranged within the first and second grooves (43A, 43B), and the first and second protrusions (44A, 44B) can guide the movement of the support portion (29B) of the lens portion (622). In addition, the support portion (39B) of the lens portion (624) can be arranged within the third and fourth grooves (43C, 43D), and the third and fourth protrusions (44C, 44D) can guide the movement of the support portion (39B) of the lens portion (624).

[0096] The movement of the lens parts (622, 624) can be stably guided by the first to fourth protrusions (44A to 44D) and the first to fourth grooves (43A to 43D), and the support parts (29B, 39B) can be prevented from being detached from the grooves (43A to 43D) or colliding with the lens part (620) due to impact or the like.

[0097] The housing (610) may be formed at the upper portion (142A) and may include an opening (621) exposing a portion of the lens portion (620). The housing (610) may further include a cover (614) covering the opening (621). For example, the housing (610) may include an opening (622) formed at the lower portion and exposing another portion of the lens portion (620). The housing (610) may further include a cover (615) covering the opening (622). In other embodiments, at least one of the openings (621, 622) may not be formed, and the covers (614, 615) may be omitted.

[0098] For example, the housing (610) may be formed as an injection-molded product. For example, at least one groove (28) may be formed on the outer surface of the upper portion (142A) of the housing (610) to correspond to, oppose, or overlap the protrusions (44B, 44D). This is because, if the thickness of the injection-molded product is thick, it is difficult to injection-mold the desired shape, so the grooves are formed to correspond to the protrusions. In addition, for example, at least one groove (not shown) may be formed on the outer surface of the lower portion (142B) of the housing (610) to correspond to, oppose, or overlap the protrusions (44A, 44C).

[0099] The lens unit (620) may include a first lens unit (622) and a second lens unit (624). The first lens unit (622) and the second lens unit (624) may be arranged or positioned in a first direction (e.g., the Z-axis direction).

[0100] Referring to FIGS. 5A and 5B , the first lens unit (622) may include a first lens holder (29). In addition, the first lens unit (622) may include a second lens array (49) (or a second lens group) that is disposed on or coupled with the first lens holder (29). The lens holder may be alternatively expressed as a “bobbin” or a “lens carrier.” For example, the second lens array (49) may include a single lens or a plurality of lenses.

[0101] For example, the first lens holder (29) may include a first lens barrel (29A) in which a second lens array (49) is arranged or coupled. For example, the first lens barrel (29A) may be moved in a first direction by interaction between the first magnet unit (130A) and the first coil (120A).

[0102] Additionally, the first lens holder (29) may include a first support portion (29B) connected or coupled with the first lens barrel (29A). For example, the first lens barrel (29A) may have a barrel shape and may include an opening (29C) (or hole) for coupling the second lens array (49). A first side (or first surface) of the first support portion (29B) may be connected or coupled with the first lens barrel (29A). The first support portion (29B) may correspond to, face, or overlap with a side portion (141-1) of the housing (140) in a second direction (e.g., in the Y-axis direction). For example, the first support portion (29B) may protrude in the first direction from the front surface of the first lens barrel (29A).

[0103] The first support member (29B) may include at least one first groove (13A, 13B) (or first guide groove) for accommodating at least a portion of the cloud members (B1 to B4). For example, at least one first groove (13A, 13B) may be formed on a second side (or second surface) of the first support member (29B). For example, the second side (or second surface) of the first support member (29B) may be an opposite surface of the first side (or first surface) of the first support member (29B). For example, at least one first groove (13A, 13B) of the first support member (29B) may correspond to, face, or overlap a side (141-1) of the housing (610). For example, at least one first groove (13A) of the first support portion (29B) may correspond to, be opposite to, or overlap with a groove (42A) formed on the side (141-1) of the housing (610). For example, at least one groove (13A) may be formed on the lower side of the second side of the first support portion (29B), and at least one groove (13B) may be formed on the upper side of the second side of the first support portion (29B).

[0104] The second lens unit (624) may include a second lens holder (39). In addition, the second lens unit (624) may include a third lens array (59) (or a third lens group) that is arranged or coupled to the second lens holder (39). For example, the third lens array (59) may include a single lens or a plurality of lenses. For example, the second lens holder (39) may include a second lens barrel (39A) in which the third lens array (59) is arranged or coupled. For example, the second lens barrel (39A) may be moved in the first direction by the interaction between the second magnet unit (130B) and the second coil (120B).

[0105] Additionally, the second lens holder (39) may include a second support member (39B) that is connected or coupled with the second lens barrel (39A). For example, the second lens barrel (39A) may have a barrel shape and may include an opening (39C) (or hole) for coupling the third lens array (59).

[0106] The first side (or first surface) of the second support member (39B) can be connected or coupled to the second lens barrel (39A). The second support member (39B) can correspond to, face, or overlap with the side (141-2) of the housing (140) in the second direction (e.g., in the Y-axis direction). For example, the second support member (39B) can protrude in the first direction from the rear surface of the second lens barrel (39A). For example, the second support member (39B) can protrude in the opposite direction to the first support member (29B).

[0107] The second support member (39B) may include at least one second groove (13C, 13D) (or second guide groove) for accommodating at least a portion of the cloud members (B5 to B8). For example, at least one second groove (13C, 13D) may be formed on a second side (or second surface) of the second support member (39B). For example, the second side (or second surface) of the second support member (39B) may be an opposite surface of the first side (or first surface) of the second support member (39B). For example, at least one second groove (13C, 13D) of the second support member (39B) may correspond to, face, or overlap with a side (141-2) of the housing (610). For example, at least one second groove (13D) of the second support member (39B) may correspond to, be opposite to, or overlap with a groove (42B) formed on the side (141-2) of the housing (610). For example, at least one groove (13C) may be formed on the lower side of the second side of the second support member (39B), and at least one groove (13D) may be formed on the upper side of the second side of the second support member (39B).

[0108] A plurality of lenses included in each of the second and third lens arrays (49, 59) may be sequentially arranged or arranged in the first direction. For example, each of the second and third lens arrays (49, 59) may include various types of optical lenses. For example, each of the second and third lens arrays (49, 59) may include at least one of a front lens having positive power and a rear lens having negative power.

[0109] Each of the grooves (42A, 42B) of the housing (610) and the grooves (13A to 13D) of the first and second supports may have a shape that makes contact with the cloud members (B1 to B8) at two or more points. For example, each of the grooves (42A, 42B) of the housing (610) and the grooves (13A to 13D) of the first and second supports may have a polygonal (e.g., rectangular), V-shaped, or U-shaped shape.

[0110] The second and third lens units (622, 624) can be prevented from being decentered or tilted when moving by the protrusions (44A to 44D) of the housing (610) and the grooves (42A, 42B) of the housing (610), and / or the grooves (13A to 13D) of the first and second support units (29B, 39B). As a result, the alignment between the plurality of lens arrays (49, 59) is well matched, so that the angle of view is prevented from changing or the focus is prevented, and the image quality or resolution of the camera device (100) can be significantly improved.

[0111] The actuator (100) may include cloud members (B1 to B8) disposed between the housing (610) and the lens unit (620). The cloud members (B1 to B8) may be in contact with the housing (610) and the lens unit (620). For example, the cloud members (B1 to B8) may be disposed between the side portions (141-1, 141-2) of the housing (610) and the support portions (29B, 39B) of the lens unit (620). The cloud members (B1 to B8) may be in contact with the side portions (141-1, 141-2) of the housing (610) and the support portions (29B, 39B) of the lens unit (620).

[0112] For example, the cloud members (B1 to B8) may be arranged between the inner surface (or groove (42A, 42B)) of the side portion (141-1, 141-2) of the housing (610) and the grooves (13A to 13D) of the support portion (29B, 39B). The cloud members (B1 to B8) may be in contact with the inner surface (or groove (42A, 42B)) of the side portion (141-1, 141-2) of the housing (610) and the grooves (13A to 13D) of the support portion (29B, 39B).

[0113] The cloud members (B1 to B8) may be expressed as “ball members”, “balls”, or “ball bearings”. For example, the cloud members (B1 to B8) may include at least one ball. Each of the balls (B1 to B8) may have a circular shape and may have a diameter sufficient to support the movement of the lens unit (620). In another embodiment, the cloud members may be in the form of rollers. For example, the cloud members (B1 to B8) may be made of a metal material, a plastic material, or a resin material.

[0114] The cloud members (B1 to B8) can support the lens unit (620). When the lens unit (620) moves in the first direction, the cloud members (B1 to B8) can reduce friction between the lens unit (620) and the housing (610) by performing a rolling or sliding movement between the lens unit (620) and the housing (610). That is, by the cloud members (B1 to B8), the lens unit (620) can be moved in a sliding manner in the first direction along the guide unit (43) of the housing (710) by contacting the cloud members (B1 to B8).

[0115] For example, the cloud member may include a first cloud member (B1 to B4) and a second cloud member (B5 to B8). The first cloud member (B1 to B4) may be disposed between the guide member (43) of the housing (610) and the first lens member (622) (e.g., the first support member (29B)). The second cloud member (B5 to B8) may be disposed between the guide member (43) of the housing (610) and the second lens member (624) (e.g., the second support member (39B)).

[0116] Next, the driving unit (630) will be described.

[0117] The driving unit (630) can move the first lens unit (622) in the first direction and move the second lens unit (624) in the first direction. For example, the driving unit (630) can move at least one lens group, for example, the second lens group or the third lens group, in the first direction or the optical axis direction. The distance in the optical axis direction between the first lens unit (622) and the second lens unit (624) can be varied by the driving unit (630).

[0118] The driving unit (630) may include a magnet (130) disposed in the lens unit (620), a coil (120) disposed in the housing (610), and a core (38). In another embodiment, the magnet may be disposed in the housing, and the coil (120) and core (38) may be disposed in the lens unit (620).

[0119] The lens unit (620) can move in the first direction or the optical axis direction by the interaction between the coil (120) and the magnet (130). The core (38) can be connected to the coil (120). Alternatively, the core (38) can be coupled to the coil (120). The core (38) can be disposed spaced apart from the magnet (130). The core (38) can be disposed between the lens unit (620) and the circuit board (190). The core (38) can be disposed in the housing (610). The coil (120) can be wound around the core (38). At least a portion of the core (38) can be disposed between the coil (120) and the magnet (130). The core (38) can include a portion disposed between the circuit board (190) and the magnet (130).

[0120] The core (38) may be made of a material that is attracted to a magnet. The core (38) may include a material that is attracted to a magnet. For example, the core (38) may be a magnetic material. For example, the core (38) may be made of a metal material that is attracted to a magnet. Alternatively, for example, the core (38) may be made of a magnetic metal material. Alternatively, in another embodiment, the core (38) may be a magnet. The core (38) may be made of a material with high magnetic permeability, for example, an alloy of iron, cobalt, or nickel. For example, the core (38) may include an iron core or an iron strip.

[0121] The core (38) can increase the electromagnetic force generated by the interaction between the coil (120) and the magnet (130). That is, the core (38) can play a role in increasing the magnetic flux density of the coil (120) to which the driving signal is supplied.

[0122] In addition, an attractive force (FH, see FIG. 7) may act between the core (38) and the magnet (130). A magnetic circuit may be formed between the core (38) and the magnet (130). An attractive force (F1) may act in a second direction (e.g., in the Y-axis direction) between the core (38) and the magnet (130). That is, since the core (38) is placed in the housing (610), which is a fixed part, the lens part (620) may be pulled toward the housing (610) by the attractive force (FH) acting between the core (38) and the magnet (130). The attractive force (FH) acting between the core (38) and the magnet (130) may also be expressed as a “holding force” or a “holding force”. The core (38) may be expressed as a “yoke” or a “core plate”.

[0123] The cloud members (B1 to B8) can be pressed by the lens unit (620) and the housing (610) by the attractive force (FH) caused by the interaction between the core (38) and the magnet (130). The core (38) and the magnet (130) can be a “pressure unit” or a “pressure member.” When the lens unit (620) moves in the optical axis direction by the pressurization unit, contact can be maintained between the lens unit (620) and the cloud members (B1 to B8) and between the housing (610) and the cloud members (B1 to B8), and the lens unit (620) can be stably supported.

[0124] The coil (120) may include a first coil (120A) disposed on the first side (142-1) of the housing (610) and for moving the lens unit (622), and a second coil (120B) disposed on the second side (142-2) of the housing (610) and for moving the lens unit (624).

[0125] The first coil (120A) may include a plurality of coil units. For example, the plurality of coil units of the first coil (120A) may be sequentially arranged or arranged in the first direction. For example, the plurality of coil units of the first coil (120A) may be arranged or arranged with equal spacing. In another embodiment, the plurality of coil units of the first coil may be arranged or arranged sequentially or consecutively so as to be in contact with each other. In FIGS. 5A and 5B , the first coil (120A) may include six coil units (31 to 36). In another embodiment, the number of coil units of the first coil (120A) may be two or more. Or, for example, the number of coil units of the first coil (120A) may be a multiple of three. In another embodiment, the first coil (120A) may include three coil units (31 to 33). Alternatively, in another embodiment, the first coil may include four or more coil units.

[0126] The second coil (120B) may include a plurality of coil units. For example, the plurality of coil units of the second coil (120B) may be sequentially arranged or arranged in the first direction. For example, the plurality of coil units of the second coil (120B) may be arranged or arranged with equal spacing. In another embodiment, the plurality of coil units of the second coil may be arranged or arranged sequentially or consecutively so as to be in contact with each other. In FIGS. 5A and 5B , the second coil (120B) may include six coil units (41 to 46). In another embodiment, the number of coil units of the second coil (120B) may be two or more. Or, for example, the number of coil units of the second coil (120B) may be a multiple of three. In another embodiment, the second coil (120B) may include three coil units (41 to 43). Alternatively, in another embodiment, the second coil may include four or more coil units. The description of the coil units (31 to 36) of the first coil (120A) may be applied or analogized to the coil units (41 to 46) of the second coil (120B).

[0127] For example, referring to FIG. 6A, each of the coil units of the first coil (120A) and the second coil (120B) may have a hollow (201, or hole). Each of the coil units of the first coil (120A) and the second coil (120B) may be a closed curve or ring having a hollow (201, or hole). For example, each of the coil units of the first coil (120A) and the second coil (120B) may be in the form of a coil ring wound clockwise or counterclockwise around (or as the center) a third axis that is parallel to the second direction (e.g., the Y-axis direction). For example, the hollow or hole of the coil unit of the first coil (120A) may face the first magnet unit (130A) in the second direction (e.g., the Y-axis direction). Or, for example, the hollow or hole of the coil unit of the second coil (120B) may face the second magnet unit (130B) in the second direction (e.g., the Y-axis direction).

[0128] A first driving signal (e.g., a first current or a first voltage) can be applied to the first coil (120A), and a second driving signal (e.g., a second current or a second voltage) can be applied to the second coil (120B).

[0129] The core (38) may include a first core (38A) connected to the first coil (120A) and a second core (38B) connected to the second coil (120A). The first core (38A) may be placed on the first side (141-1) of the housing (610). The second core (38B) may be placed on the second side (141-2) of the housing (610).

[0130] For example, the first coil (120A) can be coupled to the first core (38A). The first coil (120A) can be wound around the first core (38A). The first core (38A) can correspond to the first magnet unit (130A) and can be disposed spaced apart from the first magnet unit (130A). The first core (38A) can be disposed between the lens unit (622) and the first substrate (192) of the circuit board (190). The first coil (120A) can be wound around the first core (38A). At least a portion of the first core (38A) can be disposed between the first coil (120A) and the first magnet unit (130A). The first core (38A) can include a portion disposed between the first substrate (192) and the first magnet unit (130A).

[0131] For example, the second coil (120B) can be coupled to the second core (38B). The second coil (120B) can be wound around the second core (38B). The second core (38B) can correspond to the second magnet unit (130B) and can be disposed spaced apart from the second magnet unit (130B). The second core (38B) can be disposed between the lens unit (624) and the second substrate (194) of the circuit board (190). The second coil (120B) can be wound around the second core (38B). At least a portion of the second core (38B) can be disposed between the second coil (120B) and the second magnet unit (130B). The second core (38B) can include a portion disposed between the second substrate (194) and the second magnet unit (130B).

[0132] The magnet (130) may include a first magnet unit (130A) arranged or coupled to the first lens unit (622) and a second magnet unit (130B) arranged or coupled to the second lens unit (624). For example, the first magnet unit (130A) may be arranged or coupled to the first lens holder (29) of the first lens unit (622), and the second magnet unit (130B) may be arranged or coupled to the second lens holder (39) of the second lens unit (624). For example, the first magnet unit (130A) may be arranged or coupled to the first support (29B) of the first lens holder (29). The second magnet unit (130B) may be arranged or coupled to the second support (39B) of the second lens holder (39). For example, each of the first and second magnet units (130A, 130B) may be a bipolar magnet including two N poles and two S poles. In another embodiment, each of the first and second magnets may be a unipolar magnet including one N pole and one S pole.

[0133] The first magnet unit (130A) may correspond to, oppose, or overlap at least three coil units among the coil units of the first coil (120A). In addition, the second magnet unit (130B) may correspond to, oppose, or overlap at least three coil units among the coil units of the second coil (120B). For example, in the second direction (e.g., in the Y-axis direction), the first magnet unit (130A) may correspond to, oppose, or overlap at least three coil units among the coil units of the first coil (120A). In addition, for example, in the second direction (e.g., in the Y-axis direction), the second magnet unit (130B) may correspond to, oppose, or overlap at least three coil units among the coil units of the second coil (120B).

[0134] The first lens unit (622) can be moved in the first direction by the electromagnetic force resulting from the interaction between the first coil (120A) and the first magnet unit (130A). In addition, the second lens unit (624) can be moved in the first direction by the electromagnetic force resulting from the interaction between the second coil (120B) and the second magnet unit (130B). By controlling the first driving signal and the second driving signal, the movement of each of the first lens unit (622) and the second lens unit (624) can be controlled. As the movement of each of the first lens unit (622) and the second lens unit (624) is controlled, the position (or displacement) of each of the first lens unit (622) and the second lens unit (624) can be controlled, and thereby zooming and auto-focusing of the camera device (200) can be performed.

[0135] The first core (38A) can serve to increase the electromagnetic force due to the interaction between the first magnet unit (130A) and the first coil (120A). In addition, the second core (38B) can serve to increase the electromagnetic force due to the interaction between the second magnet unit (130B) and the second coil (120B).

[0136] The driving unit (630) may include a first yoke (19A) disposed in the lens unit (622) and a second yoke (19B) disposed in the lens unit (624). The first yoke (19A) may be disposed in or coupled to the first lens holder (29), and the second yoke (19B) may be disposed in or coupled to the second lens holder (39). The first yoke (19A) may increase an electromagnetic force due to an interaction between the first magnet unit (130A) and the first coil (120A), and the second yoke (19B) may increase an electromagnetic force due to an interaction between the second magnet unit (130B) and the second coil (120B). The driving force for moving the lens unit (620) by the first and second yokes (19A, 19B) can be improved, so that the power consumption for auto-focusing or zoom driving can be reduced.

[0137] For example, the first yoke (19A) may be disposed between the first magnet unit (130A) and the first lens holder (29), and the second yoke (19B) may be disposed between the second magnet unit (130B) and the second lens holder (39). For example, the first yoke (19A) may be disposed on the first support (29B), and the second yoke (19B) may be disposed on the second support (39B). For example, the first yoke (19A) may include a body (or “first portion”) that faces the first magnet unit (130A) in a second direction (e.g., in the Y-axis direction) and is coupled to the first lens holder (29), and an extension portion (or “second portion”) that extends from the body and is disposed on one or more surfaces of the first magnet unit (130A).

[0138] The driving unit (630) may include a circuit board (190, or substrate) electrically connected to the coil (120). For example, the circuit board (190) may be a printed circuit board. The circuit board (190) may be placed in the housing (610). The circuit board (190) may be coupled to the housing (610). The circuit board (190) may include a first substrate (192) placed or coupled to a first side (142-1) of the housing (610) and a second substrate (194) placed or coupled to a second side (142-2) of the housing (610).

[0139] The first coil (120A) may be placed or mounted on the first substrate (192), and the second coil (120B) may be placed or mounted on the second substrate (194). The first coil (120A) may be placed or mounted on the first surface of the first substrate (192). At this time, the first surface of the first substrate (192) may be a surface facing the first side (142-1) of the housing (610) in the second direction (e.g., the Y-axis direction). The second coil (120B) may be placed or mounted on the first surface of the second substrate (194). At this time, the first surface of the second substrate (194) may be a surface facing the second side (142-2) of the housing (610) in the second direction (e.g., the Y-axis direction).

[0140] The first substrate (192) may be electrically connected to the first coil (120A). In addition, the first substrate (192) may include a plurality of terminals (e.g., S1 to S12) electrically connected to the first coil (120A). Each coil unit (31 to 36) of the first coil (120A) may be electrically connected to two different terminals among the plurality of terminals (S1 to S12). For example, the plurality of terminals (S1 to S12) of the first substrate (192) may be formed on a first surface of the first substrate (192). For example, the first substrate (192) may include a plurality of terminals (not shown) for electrical connection with an external device or element, and in this case, the plurality of terminals may be arranged on a second surface of the first substrate (192) opposite the first surface of the first substrate (192).

[0141] The first substrate (192) may include an opening (9A) (or “through hole”) in which at least a portion of the first core (38A) is disposed. For example, at least a portion (e.g., 8C) of the first core (38A) may be exposed from the first substrate (192) by the opening (9A). For example, at least a portion (e.g., 8C) of the first core (38A) may be exposed from a second surface of the first substrate (192). The opening (9A) may allow at least a portion (e.g., 8C) of the first core (38A) to overlap the first substrate (192), thereby reducing the size of the actuator (100) in the second direction. In other embodiments, the first substrate (192) may not include the opening (9A).

[0142] The second substrate (194) may be electrically connected to the second coil (120B). For example, the second substrate (194) may include a plurality of terminals (K1 to K12) electrically connected to the second coil (120B). Each coil unit of the first coil (120B) may be electrically connected to two different terminals among the plurality of terminals (K1 to K12). For example, the plurality of terminals (K1 to K12) may be formed on a first surface of the second substrate (194). For example, the second substrate (194) may include a plurality of terminals (not shown) for electrical connection with an external device or element, and in this case, the plurality of terminals may be arranged on a second surface of the second substrate (194) opposite the first surface of the second substrate (194).

[0143] The second substrate (194) may include an opening (9B) (or “through hole”) in which at least a portion of the second core (38B) is disposed. For example, at least a portion of the second core (38B) may be exposed from the second substrate (194) by the opening (9B). For example, at least a portion of the second core (38B) may be exposed from a second surface of the second substrate (194). At least a portion of the second core (38B) may overlap the second substrate (194) by the opening (9B), thereby reducing the size of the actuator (100) in the second direction (Y-axis direction). In other embodiments, the second substrate (194) may not include the opening (9B).

[0144] Referring to FIGS. 8A and 8B, the first core (38A) may include a core portion (8A) disposed within the hollow portion (201) of the first coil (120A) and a first extension portion (8B) extending from the core portion (8A). The core portion (8A) may be alternatively expressed as a “column portion” or a “first portion.” The first extension portion (8B) may be alternatively expressed as a “sub-part” or a “second portion.”

[0145] The first coil (120A) can be wound around the core portion (8A). The core portion (8A) can overlap the hollow portion (201) of the first coil (120A) in a second direction (e.g., the Y-axis direction). The first core (38A) can include a plurality of core portions (8A1 to 8A6) that are spaced apart from each other. For example, in FIG. 8A, the number of core portions of the first core (38A) is six, but in other embodiments, the number of core portions of the first core (38A) can be the same as the number of coil units of the first coil (120A).

[0146] Each of the plurality of core parts (8A1 to 8A6) can be placed within a corresponding hollow (201) of any one of the plurality of coil units (31 to 36) of the first coil (120A). Each of the plurality of coil units (31 to 36) of the first coil (120A) can be wound around any one of the plurality of core parts (8A1 to 8A6).

[0147] The first extension portion (8B) may extend in a first direction from the core portion (8A). At least a portion of the first extension portion (8B) may be disposed between the first lens portion (622) and the first coil (120A). At least a portion of the first extension portion (8B) may be disposed between the first magnet unit (130A) and the first coil (120A). The first extension portion (8B) may include a first region (8B1) extending to one side of the core portion (8A) and a second region (8B2) extending to the other side of the core portion (8B). The first region (8B1) and the second region (8B2) may extend in opposite directions with respect to the core portion (8B). In other embodiments, either the first region (8B1) or the second region (8B2) may be omitted. The first magnet unit (130A) may be positioned closer to the first extension (8B) than the first coil (120A).

[0148] A first attractive force may be applied between the core portion (8B) and the first magnet unit (130A), and the first lens portion (622) may be pulled toward the first side portion (141-1) of the housing (610) by the first attractive force, and the ball members (B1 to B4) may be pressed by the first lens portion (622) and the first side portion (141-1) of the housing (610), and the first lens portion (622) may be supported by the first attractive force. The first attractive force may serve as a holding force that supports the first lens portion (622).

[0149] The first extension portion (8B) may include at least one gap (9) for passing the first coil (120A). The gap (9) may be expressed as a gap, an opening, or a hole. The gap (9) may be formed in a region of the first extension portion (8B) located between two adjacent core portions.

[0150] For example, the first extension portion (8B) may include a plurality of gaps (9-1 to 9-6). The number of gaps (9) may be the same as the number of coil units of the first coil (120A). The gaps (9-1 to 9-6) may be formed to facilitate the process of winding the coil units (31 to 36) around the core portions (8A1 to 8A6). The size or width (M1, see FIG. 6B) of the gap (9) may be larger than the diameter of one strand of the coil units of the first coil (120A). The size (or width) of the gap (9) may be the length of the gap (9) in the first direction. If the size of the gap (9) is too large, the performance of the first core (38A) with respect to the increase in electromagnetic force and the first attractive force described later may be weakened, so the size of the gap (9) may be larger than the diameter of one strand of the coil unit of the first coil (120A) and smaller than five times the diameter of one strand of the coil unit of the first coil (120A).

[0151] The first region (8B1) and the second region (8B2) of the first extension portion (8B) connected to one of the two adjacent core portions (e.g., 8A1 and 8A2) may be spaced apart from the first region (8B1) and the second region (8B2) of the first extension portion (8B) connected to the other of the two adjacent core portions (e.g., 8A2).

[0152] In another embodiment, the first extension portion (8B) may not have a gap (9), and the first and second regions of the first extension portion connected to the plurality of core portions may be connected. In another embodiment, all regions of the first extension portion connected to the plurality of core portions may be connected.

[0153] The first core (38A) may include a second extension (8C) connected to the core portion (8A) and positioned opposite the first extension (8B) with respect to the core portion (8A). The second extension (8C) may be alternatively expressed as a “sub part” or a “third part.” The second extension (8C) may extend in the first direction. At least a portion of the second extension (8C) may be positioned within the opening (9A) of the first substrate (192). At least a portion of the second extension (8C) may be exposed from the second surface of the first substrate (192).

[0154] Each of the first and second extension portions (8B, 8C) may extend in a direction parallel to the direction in which the plurality of coil units (31 to 36) of the first coil (120A) are sequentially arranged or arranged. The second extension portion (8C) may be connected to the plurality of core portions (8A1 to 8A6). The core portion (8A) and the first and second extension portions (8B, 8C) may be formed integrally. In another embodiment, the core portion (8A) and at least one of the first and second extension portions (8B, 8C) may be formed separately.

[0155] In another embodiment, the gap (9) may not be formed in the first extension (8B), but a gap may be formed in the second extension (8C). The description of the gap (9) may be applied or analogized to the gap formed in the second extension (8C).

[0156] In another embodiment, a gap (9) may be formed in the first extension portion (8B), and a gap may also be formed in the second extension portion (8C). In this case, the plurality of core portions may be separated from each other without being connected to each other, and the first region (8B1) and the second region (8B2) of the first extension portion (8B) connected to each core portion (8A1 to 8A6) may be spaced apart from each other or separated from each other, and the first region and the second region of the second extension portion (8C) connected to each core portion (8A1 to 8A6) may be spaced apart from each other or separated from each other. That is, a first core according to another embodiment may include a plurality of core units that are separated or spaced apart from each other, and each of the core units may include a first extension portion and a second extension portion, and the first extension portion of each core unit may include at least one of a first region (8B1) and a second region (8B2), and the second extension portion of each core unit may include at least one of a first region (8B1) and a second region (8B2).

[0157] Referring to FIG. 8B, the first core (38A) may include a plurality of plates (38A1 to 38AN, N being a natural number > 1). The plates (38A1 to 38AN, N being a natural number > 1) may have the same shape. The plates (38A1 to 38AN, N being a natural number > 1) may be arranged or arranged in a third direction (e.g., the X-axis direction). The plates (38A1 to 38AN, N being a natural number > 1) may be stacked in the third direction (e.g., the X-axis direction). Since the longitudinal direction of the plates is the same as the arrangement direction of the coil unit, the coupling work between the coil unit and the first core may be easy, and the design of the first core may be simplified.

[0158] The first core (120A) may further include a connecting portion (60) arranged between the end of the first extension portion (8B) and the end of the second extension portion (8C). The connecting portion (60) may create a passage (or a route) for a magnetic field to travel between the end of the first extension portion (8B) and the end of the second extension portion (8C), thereby increasing the electromagnetic force between the first coil (120A) and the first magnet unit (130A). The connecting portion (60) may be alternatively expressed as a “core connecting portion” or a “connector.”

[0159] The connecting portion (60) may include a first connecting portion (60A) positioned between a first end of the first extension portion (8B) and a first end of the second extension portion (8C), and a second connecting portion (60B) positioned between a second end of the first extension portion (8B) and a second end of the second extension portion (8C). The first end of the first extension portion (8B) and the second end of the first extension portion (8B) may be positioned opposite each other in a first direction with respect to the core portion (8A). The first end of the second extension portion (8C) and the second end of the second extension portion (8C) may be positioned opposite each other in the first direction with respect to the core portion (8A).

[0160] The first core (38A) may include a body (8) and a connecting portion (60). The body (8) of the first core (38A) may include a core portion (8A) and a first extension portion (8B). In another embodiment, the body of the first core (38A) may further include a second extension portion (8C).

[0161] The first connecting portion (60A) can connect the first end of the first extension portion (8A) and the first end of the second extension portion (8B), and the second connecting portion (60B) can connect the second end of the first extension portion (8A) and the second end of the second extension portion (8B).

[0162] The first connecting portion (60A) may include a plurality of plates (60A1 to 60AN, N being a natural number > 1). The plates (60A1 to 60AN, N being a natural number > 1) may have the same shape. The plates (60A1 to 60AN, N being a natural number > 1) may be arranged or arranged in a third direction (e.g., X-axis direction). The plates (60A1 to 60AN, N being a natural number > 1) may be stacked in a third direction (e.g., X-axis direction).

[0163] The second connecting portion (60B) may include a plurality of plates (60B1 to 60BN, N being a natural number > 1). The plates (60B1 to 60BN, N being a natural number > 1) may have the same shape. The plates (60B1 to 60BN, N being a natural number > 1) may be arranged or arranged in a third direction (e.g., the X-axis direction). The plates (60B1 to 60BN, N being a natural number > 1) may be stacked in the third direction (e.g., the X-axis direction). For example, the number of plates of each of the first connecting portion (60A) and the second connecting portion (60B) may be the same as the number of plates of the first and second extension portions (8B, 8C). The first connecting portion (60A) and the second connecting portion (60B) may have shapes that are symmetrical with respect to the core portion.

[0164] Referring to FIG. 6B, the length (L7) of the first connecting portion (60A) (or the second connecting portion (60B)) in the first direction may be smaller than the length of the core portion (8A) in the first direction. In other embodiments, L7 may be equal to or greater than the length of the core portion (8A) in the first direction.

[0165] The description of the first core (38A) of FIGS. 8A and 8B may be applied to, or analogically applied to, the second core (38B). The description of the first and second connecting portions (60A, 60B) of the first core (38A) may be applied to, or analogically applied to, the first and second connecting portions (70A, 70B) of the second core (38B).

[0166] Additionally, the description of the relationship between the first core (38A), the first coil (120A), and the first magnet unit (130A) can be applied or analogized to the relationship between the second core (38B), the second coil (120B), and the second magnet unit (130B).

[0167] FIG. 9A shows first to third drive signals supplied to three adjacent coil units (e.g., 31 to 33), and FIG. 9B shows the electromagnetic force between the three adjacent coil units (e.g., 31 to 33) and the first magnet unit (130A).

[0168] Referring to FIGS. 9A and 9B, the first magnet unit (130A) may be a bipolar magnet or a quadrupolar magnet including two N poles and two S poles. For example, the first magnet unit (130A) may include a first magnet portion (401), a second magnet portion (402), and a partition wall (403) disposed between the first magnet portion (401) and the second magnet portion (402). Here, the magnet portion may be replaced with a “magnet unit”, and the partition wall (403) may be replaced with a “non-magnetic partition wall”.

[0169] The first magnet portion (401) may include a first polarity region (41A) and a second polarity region (41B). For example, the first polarity region (41A) may be a south pole (or north pole), and the second polarity region (41B) may be a north pole (or south pole). In addition, the first magnet portion (401) may include a first boundary between the first polarity region (41A) and the second polarity region (41B). The first boundary may include a substantially non-magnetic region, a section with almost no polarity, and may be a naturally occurring region to form a magnet composed of one north pole and one south pole. The second magnet portion (402) may include a third polarity region (42A) and a fourth polarity region (42B). For example, the third polarity region (42A) may be a north pole (or south pole), and the fourth polarity region (42B) may be a south pole (or north pole). In addition, the second magnet portion (402) may include a second boundary portion between the third polarity region (42A) and the fourth polarity region (42B). The second boundary portion may include a substantially non-magnetic portion, a section with little polarity, and may be a naturally occurring portion to form a magnet composed of one north pole and one south pole.

[0170] The partition wall (403) separates or isolates the first magnet portion (401) and the second magnet portion (402), and may be a portion that is substantially non-magnetic and has almost no polarity. For example, the partition wall may be a non-magnetic material, a gap, or air. For example, the partition wall may be expressed as a “neutral zone” or a “neutral area.” The partition wall (403) is a portion that is artificially formed when the first magnet portion (401) and the second magnet portion (402) are magnetized, and the width of the partition wall (403) may be greater than the width of the first boundary portion (or the width of the second boundary portion). Here, the width of the partition wall (403) may be the length in the direction from the first magnet portion (401) toward the second magnet portion (402). The width of the first boundary portion (or second boundary portion) may be the length of the first boundary portion (or second boundary portion) in the direction from the N pole to the S pole of each of the first and second magnet portions (401, 402).

[0171] The first magnet portion (401) and the second magnet portion (402) may be arranged in the first direction with the partition wall (403) therebetween. For example, the first magnet portion (401) and the second magnet portion (402) may be arranged facing each other in the first direction with the partition wall (403) therebetween.

[0172] The first magnet portion (401) and the second magnet portion (402) may be arranged so that their polarities face each other in the optical axis direction. For example, the first magnet portion (402) and the second magnet portion (402) may be arranged so that they face each other or face each other in the optical axis direction. In addition, for example, the N pole and the S pole of each of the first magnet portion (401) and the second magnet portion (402) may be arranged so that they face each other or face each other in the second direction (e.g., the Y-axis direction). For example, the N pole of the first magnet portion (401) may be arranged closer to the coil units (31 to 36) of the first coil (120A) than the S pole, and the S pole of the second magnet portion (402) may be arranged closer to the coil units (31 to 36) of the first coil (120A) than the N pole, but in other embodiments, the positions of the N pole and the S pole may be arranged oppositely.

[0173] In another embodiment, the first magnet portion and the second magnet portion of the first magnet may be arranged to face each other in the second direction (e.g., the Y-axis direction) or the third direction (e.g., the X-axis direction). In another embodiment, the first magnet may be a two-pole magnet including one N pole and one S pole. For example, one N pole and one S pole of the first magnet may be arranged to face each other in the optical axis direction. In another embodiment, one N pole and one S pole of the first magnet may be arranged to face each other in the second direction (e.g., the Y-axis direction). The description of the first magnet unit (130A) may be applied or analogized to the second magnet unit (130B).

[0174] Referring to FIG. 6A, in a second direction (e.g., in the Y-axis direction), the first magnet unit (130A) may overlap with three adjacent coil units among the coil units (31 to 36) of the first coil (120A). For example, the second direction may be a direction in which the first coil (120A) and the first magnet unit (130A) face each other.

[0175] The first extension portion (8B) can overlap with the first coil (120) in the second direction. For example, the first extension portion (8B) can overlap with the coil units (31 to 36) of the first coil (120) in the second direction. The first extension portion (8B) can overlap with the first part (3a) and the second part (3b) of the coil units (31 to 36) in the second direction. The first magnet unit (130A) can overlap with three adjacent core portions of the first core (38A) in the second direction.

[0176] For example, the length (L11) of the first magnet unit (130A) in the first direction may be smaller than the total length (L4) of the three adjacent coil units (e.g., 31 to 33) in the first direction (L11 <L4). 제1 마그넷 유닛(130A)의 제1 방향으로의 길이(L11)는 제1 코어(38A)의 제1 방향으로의 전체 길이(L6)보다 작을 수 있다(L11<L6).

[0177] For example, the overall length (L4) may be the sum of the lengths (L21, L22, L23) of each of the three adjacent coil units in the optical axis direction and the separation distance (d1) between the coil units. For example, L11 may be smaller than the sum of the lengths of the three adjacent coil units (e.g., 31 to 33) in the first direction.

[0178] For example, the length (L11) of the first magnet unit (130A) in the first direction may be greater than the total lengths of two adjacent coil units (e.g., 31 and 32) among the plurality of coil units (31 to 36) in the first direction. For example, the total lengths of the two adjacent coil units (e.g., 31 to 32) in the first direction may be the sum of the lengths of each of the two adjacent coil units in the optical axis direction and the separation distance between the adjacent coil units. For example, L11 may be greater than the sum of the lengths of the two adjacent coil units (e.g., 31 and 32) in the first direction.

[0179] In another embodiment, the length (L11) of the first magnet unit (130A) in the first direction may be equal to the total length (L4) of the three adjacent coil units (e.g., 31 to 33) in the first direction.

[0180] For example, the length (L11) of the first magnet unit (130A) in the first direction may be smaller than the sum of the lengths (e.g., L21, L22, L23) of the three adjacent coil units in the first direction. In another embodiment, the length (L11) of the first magnet unit (130A) in the first direction may be equal to the sum of the lengths (e.g., L21, L22, L23) of the three adjacent coil units in the first direction.

[0181] The length (L11) of the first magnet unit (130A) in the first direction may be greater than the sum of the lengths of two of the three adjacent coil units in the first direction.

[0182] The length (L11) of the first magnet unit (130A) in the first direction may be less than or equal to the total length of the first extension portion (8B) in the first direction that is connected to the three adjacent core portions (e.g., 8A1, 8A2, 8A3). In another embodiment, L11 may be greater than the total length of the first extension portion (8B) in the first direction that is connected to the three adjacent core portions (e.g., 8A1, 8A2, 8A3).

[0183] For example, the length (L11) of the first magnet unit (130A) in the first direction may be greater than the length (L12) of the first magnet unit (130A) in the third direction (e.g., in the X-axis direction) (L11 > L12). In addition, the length (L6) of the first core (38A) in the first direction may be greater than the length (L12) of the first core (38A) in the third direction (e.g., in the X-axis direction) (L6 > L12). For example, the total length of the first extension (8B) in the first direction may be greater than the length of the first extension (8B) in the third direction (e.g., in the X-axis direction). For example, the total length of the second extension (8C) in the first direction may be greater than the length of the second extension (8C) in the third direction (e.g., in the X-axis direction).

[0184] For example, the length (L12) of the first magnet unit (130A) in the third direction (e.g., in the X-axis direction) may be smaller than the length (L31) of the coil unit of the first coil (120A) in the third direction (e.g., in the X-axis direction) (L12 < L31). In another embodiment, the length (L12) of the first magnet unit (130A) in the third direction (e.g., in the X-axis direction) may be equal to or greater than the length (L31) of the coil unit of the first coil (120A) in the third direction (e.g., in the X-axis direction).

[0185] For example, the length (L13) of the first core (38A) in the third direction (e.g., in the X-axis direction) may be greater than or equal to the length (L12) of the first magnet unit (130A) in the third direction (e.g., in the X-axis direction). The length (L13) of the first core (38A) in the third direction (e.g., in the X-axis direction) may be less than or equal to the length (L31) of the coil unit of the first coil (120A) in the third direction.

[0186] For example, each of the coil units (31 to 36) of the first coil (120A) may have the same shape. Also, for example, each of the coil units (31 to 36) of the first coil (120A) may have the same number of turns (or number of rotations). For example, the lengths (L21, L22, L23) of each of the coil units (31 to 36) of the first coil (120A) in the first direction may be the same. Also, for example, the lengths (H2) of each of the coil units (31 to 33) of the first coil (120A) in the third direction (e.g., the X-axis direction) may be the same. In other embodiments, the number of turns, the length in the first direction, or the length in the second direction of at least one of the coil units of the first coil may be different.

[0187] The length (M2) in the first direction of the first extension portion (8B) extending from each core portion (8A1 to 8A6) may be greater than or equal to the length (L21, L22, or L23) in the first direction of each coil unit (31) of the first coil (120). M2 may be greater than M1.

[0188] For example, the length (L31) of each coil unit of the first coil (120A) in the third direction (e.g., in the X-axis direction) may be greater than the length (L21) in the first direction (L31 > L21). In another embodiment, the length of each coil unit in the third direction (e.g., in the X-axis direction) may be equal to or less than the length in the first direction.

[0189] For example, the length (L2) of one polarity region of the first magnet unit (130A) in the first direction may be greater than the length (L21, L22, or L23) of the coil unit (e.g., 31) of the first coil (120A) in the first direction (L2>L21, L2>L22, L2>L23).

[0190] For example, the length (L2) of the first magnet part (401) in the first direction may be greater than the length (L21, L22, or L23) of each coil unit (e.g., 31) of the first coil (120A) in the first direction. Also, for example, the length (L2) of the second magnet part (402) in the first direction may be greater than the length (L21, L22, or L23) of each coil unit (e.g., 31) of the first coil (120A) in the first direction. L2 may be greater than M2. L3 may be smaller than M2.

[0191] For example, the length (H1) of the first magnet unit (130A) in the second direction (e.g., the Y-axis direction) may be smaller than the length (H2) of each coil unit of the first coil (120A) in the second direction (H1 < H2). In other embodiments, the length (H1) of the first magnet unit (130A) in the second direction (e.g., the Y-axis direction) may be equal to or greater than the length (H2) of the coil unit of the first coil (120A) in the second direction (e.g., the Y-axis direction).

[0192] For example, the length (L3) of the partition wall (403) of the first magnet unit (130A) in the first direction may be smaller than the length (L5) of the hollow (201) of the coil unit of the first coil (120A) in the first direction. In other embodiments, the length (L3) of the partition wall (403) in the first direction may be equal to or greater than the length (L5) of the hollow (201) of the coil unit of the first coil (120A) in the first direction.

[0193] For example, the length (L3) of the partition wall (403) in the first direction may be greater than the separation distance (d1) between two adjacent coil units. In other embodiments, the length (L3) of the partition wall (403) in the first direction may be equal to or smaller than the separation distance (d1) between two adjacent coil units.

[0194] For example, a first pitch (P1) between the first magnet portion (401) and the second magnet portion (402) may be greater than a second pitch (P2) between adjacent coil units (P1>P2). For example, the first pitch (P1) may be a distance between the center of the first magnet portion (401) and the center of the second magnet portion (402). Additionally, the second pitch (P2) may be a distance between the center of the hollow (201) of one of the two adjacent coil units and the center of the hollow (201) of the other of the two adjacent coil units. In other embodiments, the first pitch may be equal to or smaller than the second pitch.

[0195] Referring to FIGS. 6a and 6b, each of the coil units (31 to 36) may include a first part (3a), a second part (3b), a third part (3c), and a fourth part (3d). For example, the first part (3a) and the second part (3b) may be positioned facing each other or opposite each other in a first direction (e.g., in the Z-axis direction). In addition, the third part (3c) and the fourth part (3d) may be positioned facing each other or opposite each other in a third direction (e.g., in the X-axis direction). For example, the third part (3c) may connect one side of the first part (3a) and one side of the second part (3b), and the fourth part (3d) may connect the other side of the first part (3a) and the other side of the second part (3b).

[0196] Referring to FIG. 7 and FIG. 9A, a first driving signal (I1) may be supplied to one (e.g., 31) of three adjacent coil units (e.g., 31 to 33) among a plurality of coil units of the first coil (120A), a second driving signal (I2) may be supplied to another (e.g., 32) of the three adjacent coil units (e.g., 31 to 33) of the first coil (120A), and a third driving signal (I3) may be supplied to the remaining other one (33) of the three adjacent coil units (e.g., 31 to 33) of the first coil (120A).

[0197] The first to third driving signals (I1 to I3) may be signals with different phases. For example, each of the first to third coil units (31 to 33) may be supplied with an AC signal with a different phase. For example, each of the first to third coil units (31 to 33) may be supplied with an AC current with a phase difference of 120 degrees.

[0198] The first to third driving signals (I1 to I3) may be signals having a preset phase difference. For example, the preset phase difference may be 120 degrees. For example, the first driving signal may be a U-phase driving current, the second driving signal may be a V-phase driving current, and the third driving signal may be a W-phase driving current.

[0199] For example, a driving signal having three phases may be supplied to three adjacent coil units (e.g., 31 to 33) among the plurality of coil units of the first coil (120A). For example, the driving signal may be an alternating current. In another embodiment, the driving signal may be an alternating voltage. For example, the first to third driving signals may be three-phase sinusoidal signals. For example, the sinusoidal signal may be a sine wave or a cosine wave.

[0200] In another embodiment, the first to third driving signals may be pulse width modulation (PWM) signals. Or, for example, each of the first to third driving signals may be a sinusoidal PWM signal.

[0201] Referring to FIG. 6a and FIG. 9, for example, the direction of the current of the driving signal (I1 to I3) flowing through each of the first to third coil units (31 to 33) may be clockwise (or counterclockwise) in a section having a positive (+) current value, and may be counterclockwise (or clockwise) in a section having a negative (-) current value.

[0202] In addition, a fourth driving signal (I4) may be supplied to one (e.g., 34) of the three adjacent remaining coil units (e.g., 34 to 36) of the first coil (120A), a fifth driving signal (I5) may be supplied to another (e.g., 32) of the three coil units (e.g., 34 to 36) of the first coil (120A), and a sixth driving signal (I6) may be supplied to the other remaining one (36) of the three coil units (e.g., 34 to 36) of the first coil (120A). The fourth to sixth driving signals (I4 to I6) may be supplied with three-phase driving currents, and the description of the first to third driving signals (I1 to I3) described above may be applied or analogized. For example, the fourth driving signal (I4) may be identical to the first driving signal (I1), the fifth driving signal (I5) may be identical to the second driving signal (I2), and the sixth driving signal (I6) may be identical to the third driving signal (I3).

[0203] Referring to Fig. 9b, when the three-phase driving currents (I1 to I3) of Fig. 9a are supplied to the first to third coil units (31 to 33), a first driving force (Fz) (or first force) in a first direction and a second driving force (Fy) (or second force) in a second direction (e.g., Y-axis direction) may be generated by interaction with the first magnet unit (130A). In addition, the driving force (Fx) or force in the third direction (e.g., X-axis direction) may be hardly generated.

[0204] When three-phase driving currents (I1 to I3) are supplied to the first to third coil units (31 to 33), a magnetic field is formed in the coil units (31 to 33), and the first magnet unit (130A) is positioned so that the magnetic field of the formed coil units (31 to 33) and the first magnet unit (130A) are synchronized. Since each of the driving currents (I1 to I3) is an AC signal with a different phase, the magnetic field of the coil units (31 to 33) changes. That is, the position at which the strength of the magnetic field of the coil units (31 to 33) is the strongest changes, and the first magnet unit (130A) can move in synchronization with this positional change.

[0205] The first magnet unit (130A) can move in the first direction by the first driving force (Fz), and as shown in FIG. 9b, the fluctuation of the first driving force (Fz) is not large throughout the entire range of the stroke section of the first magnet unit (130A), and the first driving force can be uniform.

[0206] In the embodiment, the variation of the first driving force (Fz) is not large due to the size and arrangement relationship between the first magnet unit (130A) and the three coil units (31 to 33) to which the three-phase driving currents (I1 to I3) are supplied, and a uniform first driving force can be obtained, thereby improving the accuracy of the zooming operation of the first lens unit (622).

[0207] In addition, in the embodiment, by sequentially arranging six coil units (31 to 36) in the first direction, the movement distance that the first magnet unit (130A) can move can be increased, thereby increasing the range of the stroke of the first lens unit (622) for the zooming operation. In the embodiment, the movement of the second lens unit (624) can be controlled with the same or uniform driving force within the stroke section of the second magnet unit (130B) or the stroke section of the second lens unit (624). In the embodiment, a uniform driving force for moving the second lens unit (624) in the optical axis direction can be obtained, and the accuracy of the movement control of the second lens unit (624) in the optical axis direction can be improved.

[0208] When applying the analogy described above in FIGS. 6A to 7, 9A, and 9B, the embodiment can obtain a uniform first driving force (Fz) with little fluctuation in the first driving force due to the size and arrangement relationship between the second magnet unit (130B) and the three coil units (41 to 43) to which the three-phase driving currents are supplied, thereby improving the accuracy of the focusing operation of the second lens unit (624). In addition, in the embodiment, by sequentially arranging the six coil units (41 to 46) of the second coil (120B) in the first direction, the moving distance that the second magnet unit (130B) can move can be increased, thereby increasing the stroke range of the second lens unit (624) for the focusing operation.

[0209] The description of the first coil (120A) and the first magnet unit (130A) can be applied or analogically applied to the second coil (120B) and the second magnet unit (130B). In addition, the description of the first core (38A), the first coil (120A), and the first magnet unit (130A) of FIGS. 6A and 6B can be applied or analogically applied to the second core (38B), the second coil (120B), and the second magnet unit (130B).

[0210] Fig. 10 illustrates the assembly sequence of the first core (38A), the first coil (120A), and the first substrate (192). Referring to Fig. 10, first, the body (8) of the first core (38A) is prepared. The body (8) can be formed by an etching or press method.

[0211] Next, coil units (31 to 36) are wound around each of the core parts (8A1 to 8A6) of the body (8). Next, the first connecting part (60A) and the second connecting part (60B) are connected to the body (8). For example, the first connecting part (60A) and the second connecting part (60B) can be connected to the body (8) by welding. Next, the coil units (31 to 36) and the first substrate (192) are connected by an adhesive (e.g., epoxy). Next, the coil units (31 to 36) and the terminals (S1 to S12) of the first substrate (192) are electrically connected by solder or a conductive adhesive.

[0212] Fig. 11 shows an exploded perspective view of a first core (38-1) according to another embodiment.

[0213] The first core (38A-1) may be an example in which an insulating part (6) is added to the first core (38A) to prevent or suppress the occurrence of eddy current.

[0214] An insulating portion (6) may be disposed between a plurality of plates (38A1 to 38AN). The insulating portion (6) may be an insulating layer or an insulating coating layer. The insulating portion (6) may serve to block current from flowing through the plurality of plates (38A1 to 38AN). The insulating portion (6) may be disposed between two plates among the plurality of plates (38A1 to 38AN). In FIG. 10, the insulating portion (6) is disposed between each plate, but in other embodiments, the insulating portion (6) may be disposed between at least two plates among the plates.

[0215] The first core (38A-1) may include a first connecting portion (60A-1) including an insulating portion (4). The insulating portion (4) may be arranged between plates (60A1 to 60AN) of the first connecting portion (60A-1). The first core (38A-1) may include a second connecting portion (60B-1) including an insulating portion (5). The insulating portion (5) may be arranged between plates (60B1 to 60BN) of the second connecting portion (60B-1). The description of the insulating portion (6) may be applied to or analogized with the insulating portions (4, 5).

[0216] Eddy currents can cause heat to be generated in the core and increase the temperature of the core. Eddy currents can also cause a decrease in the electromagnetic force between the core and the magnet unit. The first core (38A-1) according to the embodiment includes an insulating portion (6, 4, 5), thereby preventing or suppressing the generation of eddy currents in the first core (38A-1), and preventing heat generation and a decrease in the electromagnetic force of the first core (38A-1) caused by eddy currents.

[0217] Fig. 12 is a schematic drawing of a camera device (200) according to an embodiment.

[0218] Referring to FIG. 12, the camera device (200) may include an actuator (100) and an image sensor (810) according to an embodiment. The image sensor (810) may receive and detect light passing through the lens unit (620) and convert the detected light into an electrical signal. For example, the image sensor (810) may include an imaging area for detecting light. Here, the imaging area may be expressed as an effective area, a light-receiving area, or an active area. For example, the imaging area may include a plurality of pixels on which an image is formed.

[0219] The image sensor (810) may be positioned at the rear of the lens unit (620). For example, the image sensor (810) may be positioned at the rear of the second lens unit (624). For example, the image sensor (810) may be positioned to face the lens array (59) of the second lens unit (624) in the first direction.

[0220] The camera device (200) may further include a filter (560) disposed between the image sensor and the lens unit (620) and facing the image sensor in a first direction. The filter (560) may block light of a specific frequency band from passing through the lens unit (620) from entering the image sensor (810). For example, the filter (560) may be an infrared cutoff filter, but is not limited thereto. For example, the filter (560) may be disposed parallel to an xy-plane perpendicular to the first direction.

[0221] The camera device (200) may further include a circuit board (800) on which an image sensor (810) is arranged or mounted. The image sensor (810) may be electrically connected to the circuit board (800). The circuit board (800) may be electrically connected to the circuit board (190).

[0222] The camera device (200) may further include an actuator (310) for driving OIS.

[0223] The actuator (320) may be positioned in front of the actuator (100). The actuator (310) may change the path of light. For example, the actuator (310) may include an optical member that changes the path of light. The optical member may include a reflector that may change the direction in which light travels. For example, the optical member may be a prism that reflects light, but is not limited thereto, and in other embodiments, may be a mirror. The optical member may change the optical path of incident light into an optical axis parallel to the central axis (Z) of the lens unit (620), thereby changing the incident light into parallel light, and the parallel light may pass through the first lens assembly (640), the first lens unit (622), and the second lens unit (624) to reach the image sensor (810).

[0224] For example, the actuator (310) can move the optical member, thereby performing an OIS (Optical Image Stabilizer) operation to correct for hand shake. For example, the actuator (310) can rotate the optical member around the X-axis or around the Y-axis, and move the image formed on the image sensor (810) in the X-axis direction or the Y-axis direction. The actuator (310) can include a coil and a magnet for moving the optical member.

[0225] FIG. 13 is a perspective view of an actuator (1100) according to an embodiment, FIG. 14 is an exploded perspective view of the actuator (1100) of FIG. 13, FIG. 15a is a cross-section of the actuator (1100) of FIG. 13 in the AB direction, FIG. 15b is a cross-section of the actuator (1100) of FIG. 13 in the CD direction, FIG. 16a is a first perspective view of a housing (1610), FIG. 16b is a second perspective view of the housing (1610), FIG. 17a is a first separated perspective view of a lens unit (1620) and a driving unit (1630), and FIG. 17b is a second separated perspective view of the lens unit (1620) and a driving unit (1630). In FIG. 13, the covers (1614, 1615) and yokes (1048, 1049) shown in FIG. 14 and FIG. 17b are omitted.

[0226] The actuator (1100) can move the lens assemblies (1622, 1624) in the optical axis direction, thereby performing auto focus and / or zoom functions, and may be alternatively expressed as a “first driving unit” or an “AF and zoom driving unit”.

[0227] Referring to FIGS. 13 to 17b, the actuator (1100) may include a lens unit (1620) and a driving unit (1630) that moves the lens unit (1620) in a first direction (e.g., in the optical axis direction or the Z-axis direction).

[0228] The actuator (1100) may include a housing (1610) that accommodates or supports a lens unit (1620) and a driving unit (1630). For example, the lens unit (1620) may be disposed within the housing (1610). The lens unit (1620) may be a “moving unit” that is movable in a first direction relative to a fixed unit. For example, the fixed unit corresponds to a fixed configuration that does not move in the first direction. The fixed unit may include at least one of the housing (1610) and a configuration coupled to the housing (1610), for example, a coil (1120), a position sensor unit (1170), a circuit board (1190), a yoke (1080), and covers (1614, 1615, 1616).

[0229] The lens unit (1620) may be replaced with a “lens assembly.” For example, the lens unit (1620) may include a plurality of lens assemblies.

[0230] In FIG. 14, the lens unit (1620) may include two lens assemblies (1622, 1624). In another embodiment, the lens unit (630) may include three or more lens assemblies. For example, the lens assembly (1622) and the lens assembly (1624) may be arranged to correspond to, face, or overlap each other in the first direction.

[0231] The actuator (1100) may further include a lens assembly (1640) positioned at the rear of the lens unit (1620). For example, the lens assembly (1640) may be positioned on the opposite side of the lens assembly (1624) with respect to the lens assembly (1622). For example, the lens assembly (1640) may be a fixed lens assembly whose position is fixed and does not move in the optical axis direction.

[0232] The lens assembly (1640) may include a lens array (642) (or lens group). For example, the lens assembly (1640) may further include a lens barrel (1643) coupled with the lens array (642). The lens barrel (1643) may be disposed at the rear of the housing (1610). The lens barrel (1643) may be coupled with the housing (1610). The lens barrel (1643) may be alternatively expressed as a “housing” or a “lens carrier.”

[0233] Although the lens assembly (1640) is represented as being included in the actuator (1100), in other embodiments it may be a separate component not included in the actuator (1100). In still other embodiments, the lens assembly (1640) may be omitted.

[0234] Also, in other embodiments, one of 1640, 1622, and 1624 may be represented as a “first lens assembly” or “first lens unit,” another of 1640, 1622, and 1624 may be represented as a “second lens assembly” or “second lens unit,” and the remaining other of 1640, 1622, and 1624 may be represented as a “third lens assembly” or “third lens unit.” For example, in the embodiments, the lens assembly (1640) may be a fixed lens group, and each of the lens assembly (1622) and the lens assembly (1624) may be a moving lens group.

[0235] For example, the lens assembly (1640) can perform a focal function that focuses parallel light on a specific location. In addition, the lens assembly (1622) can perform a variator function that refocuses the image focused by the lens assembly (1640), which is a condenser, on another location. Meanwhile, in the lens assembly (1622), the distance to the subject or the image distance may change significantly, resulting in a large change in magnification, and the lens assembly (1622), which is a variator, may play an important role in changing the focal length or magnification of the optical system. Meanwhile, the image focused by the lens assembly (1622), which is a variator, may slightly differ depending on the location.

[0236] Additionally, the lens assembly (1624) may perform a position compensation function for the image formed by the variable lens assembly (1622). For example, the lens assembly (1624) may perform a compensator function that accurately forms the image formed by the variable lens assembly (1622) onto the pixels of the image sensor (1810). For example, the lens assembly (1622) may be a zoom lens assembly that performs a zooming function, and the lens assembly (1624) may be a focus lens assembly that performs a focusing function.

[0237] The housing (1610) may have a polyhedral (e.g., rectangular) shape with a space inside to accommodate or support the lens unit (1620) and the driving unit (1630). The housing (1610) may also be expressed as a “base,” “holder,” or case.

[0238] For example, the housing (1610) may include an upper portion (1142A) (or upper plate), a lower portion (1142B) (or lower plate), and a plurality of side portions (1141-1 to 1141-4) disposed between the upper portion (1142A) and the lower portion (1142B). The side portions (1141-1 to 1141-4) may also be alternatively referred to as “side plates” or “side walls.” For example, the side portions (1141-1) and the side portions (1141-2) may face each other or be positioned opposite each other in a direction perpendicular to the optical axis or in a third direction (e.g., the Y-axis direction). In addition, the side portions (1141-3) and the side portions (1141-3) may face each other in a first direction or be positioned opposite each other.

[0239] A first opening (1041A) (or first hole) for exposing one end of the lens unit (1620) may be formed in a side portion (1141-3) of the housing (1610). A second opening (1041B) (or second hole) for exposing the other end of the lens unit (1620) may be formed in a side portion (1141-4) of the housing (1610). In addition, an opening (1041C) (or third hole) for placing or settling a first coil (1120A) may be formed in a side portion (1141-1) of the housing (1610). An opening (1041D) (or third hole) for placing or settling a second coil (1120B) may be formed in a side portion (1141-4) of the housing (1610). Each of the openings (1041C, 1041D) is in the form of a through hole, but in other embodiments may be in the form of a recess. In other embodiments, the opening (1041C) may include a plurality of holes corresponding to the coil units (1031, 1032), and the opening (1041D) may include a plurality of holes corresponding to the coil units (1041, 1042).

[0240] In order to guide movement of the lens unit (1620) in the optical axis direction, the housing (1610) may include at least one guide unit (1043) formed on the inner surface of the housing (1610). For example, the at least one guide unit (1043) may include at least one protrusion (1044A to 1044D) formed on at least one of the upper portion (1142A) or the lower portion (1142B) of the housing (1610). In addition, the guide unit (1043) may include at least one groove (1043A to 1043D) formed between the at least one protrusion (1044A to 1044D) and the side portion of the housing (1610).

[0241] For example, the first protrusion (1044A) may be arranged on the inner surface of the lower portion (1142B) of the housing (1610), and the second protrusion (1044B) may be formed on the inner surface of the upper portion (1142A) of the housing (1610) to correspond to, face, or overlap with the first protrusion (1044A) in a second direction (e.g., in the X-axis direction). The first and second protrusions (1044A, 1044B) may be arranged to be spaced apart from the inner surface of the side portion (1141-1) of the housing (1610) by a preset interval. For example, the first groove (1043A) may be formed on the inner surface of the lower portion (1142B) of the housing (1610). The first groove (1043A) may be arranged adjacent to the lower portion of the inner surface of the side portion (1141-1) of the housing (1610). For example, the first groove (1043A) may be formed between the first protrusion (1044A) and the inner surface of the side portion (1141-1) of the housing (1610). For example, the second groove (1043B) may be formed on the inner surface of the lower portion (1142B) of the housing (1610). The second groove (1043B) may be positioned adjacent to the upper portion of the inner surface of the side portion (1141-1) of the housing (1610). For example, the second groove (1043B) may be formed between the second protrusion (1044B) and the inner surface of the side portion (1141-1) of the housing (1610).

[0242] For example, the third protrusion (1044C) may be arranged on the inner surface of the lower portion (1142B) of the housing (1610), and the fourth protrusion (1044D) may be formed on the inner surface of the upper portion (1142A) of the housing (1610) to correspond to, face, or overlap with the third protrusion (1044C) in the second direction (X-axis direction). The third and fourth protrusions (1044C, 1044D) may be arranged at a predetermined interval from the inner surface of the side portion (1141-2) of the housing (1610). For example, the third groove (1043C) may be formed on the inner surface of the upper portion (1142A) of the housing (1610). The third groove (1043C) may be arranged adjacent to the lower surface of the inner surface of the side portion (1141-2) of the housing (1610). For example, the third groove (1043C) may be formed between the third protrusion (1044C) and the inner surface of the side portion (1141-2) of the housing (1610). For example, the fourth groove (1043D) may be formed on the inner surface of the upper portion (1142A) of the housing (1610). For example, the fourth groove (1043D) may be positioned adjacent to the upper portion of the inner surface of the side portion (1141-2) of the housing (1610). For example, the fourth groove (1043D) may be formed between the fourth protrusion (1044D) and the inner surface of the side portion (1141-2) of the housing (1610).

[0243] For example, a groove (1042A, 1042B) may be formed on the inner surface of at least one of the sides (1141-1, 1141-2) of the housing (1610) to accommodate or place at least a portion of the cloud members (B1 to B8). For example, a groove (e.g., 1043A, 1043B) may be formed on the inner surface of a side (1141-1, 1141-2) of the housing (140) adjacent to at least one of the first to fourth grooves (1043A to 1043D). In FIG. 16A, two grooves (e.g., 1043A, 1043B) are formed, but in other embodiments, grooves may be formed on the upper and lower sides of the inner surface of the side portion (1141-1) of the housing (140), respectively, and grooves may be formed on the upper and lower sides of the inner surface of the side portion (1141-2) of the housing (140), respectively.

[0244] The support portion (1029B) of the lens assembly (1622) can be positioned within the first and second grooves (1043A, 1043B), and the first and second protrusions (1044A, 1044B) can guide the movement of the support portion (1029B) of the lens assembly (1622). In addition, the support portion (1039B) of the lens assembly (1624) can be positioned within the third and fourth grooves (1043C, 1043D), and the third and fourth protrusions (1044C, 1044D) can guide the movement of the support portion (1039B) of the lens portion (624). The movement of the lens assemblies (1622, 1624) can be stably guided by the first to fourth protrusions (1044A to 1044D) and the first to fourth grooves (1043A to 1043D), and the support parts (1029B, 1039B) of the lens assemblies (1622, 1624) can be prevented from being detached from the grooves (1043A to 1043D) of the housing (1610) due to impact, etc.

[0245] The housing (1610) may be formed in the upper portion (1142A) and may include an opening (1621A) exposing a portion of the lens portion (1620). The housing (1610) may further include a cover (1614) covering the opening (1621A). For example, the housing (1610) may be formed in the lower portion (1142B) and may include an opening (1621B) exposing another portion of the lens portion (1620). The housing (1610) may further include a cover (1615) covering the opening (1621B). In other embodiments, at least one of the openings (1621A, 1621B) may not be formed, and the covers (1614, 1615) may be omitted. Additionally, the actuator (1100) may include a cover (1616) covering the second opening (1041B) (or second hole) of the housing (1610). The cover (1616) may be a light-transmitting material, such as glass. The cover (1616) may also be expressed as a glass cover.

[0246] The housing (1610) may be formed as an injection-molded product. For example, at least one groove (1028) may be formed on the outer surface of the upper portion (1142A) of the housing (1610) to correspond to, oppose, or overlap the protrusions (1044B, 1044D). This is because, if the thickness of the injection-molded product is thick, it is difficult to injection-mold the desired shape, so the grooves are formed to correspond to the protrusions. In addition, for example, at least one groove (not shown) may be formed on the outer surface of the lower portion (1142B) of the housing (1610) to correspond to, oppose, or overlap the protrusions (1044A, 1044C).

[0247] The lens unit (1620) may include a lens assembly (1622) (or “first lens unit”) and a lens assembly (1624) (or “second lens unit”). The lens assemblies (1622, 1624) may be arranged or positioned in a first direction.

[0248] Referring to FIGS. 17A and 17B , the lens assembly (1622) may include a first lens holder (1029). The lens assembly (1622) may also include a second lens array (1049) (or second lens group) disposed in or coupled with the first lens holder (1029). The lens holder may be alternatively referred to as a “bobbin” or a “lens carrier.” For example, the second lens array (1049) may include a single lens or may include a plurality of lenses.

[0249] For example, the first lens holder (1029) may include a first lens barrel (1029A) in which a second lens array (1049) is arranged or coupled. For example, the first lens barrel (1029A) may be moved in a first direction by interaction between the first magnet (1130A) and the first coil (1120A).

[0250] Additionally, the first lens holder (1029) may include a first support (1029B) that is connected or coupled with the first lens barrel (1029A). For example, the first lens barrel (1029A) may have a barrel shape and may include an opening (1029C) (or hole) for coupling the second lens array (1049).

[0251] A first side (or first surface) of the first support member (1029B) may be connected or coupled to the first lens barrel (1029A). The first support member (1029B) may correspond to, face, or overlap with the side (1141-1) of the housing (140) in a third direction (e.g., in the Y-axis direction). For example, the first support member (1029B) may protrude in the first direction from the front of the first lens barrel (1029A).

[0252] The first support member (1029B) may include at least one first groove (1013A, 1013B) (or first guide groove) for accommodating at least a portion of the cloud members (B1 to B4). For example, the at least one first groove (1013A, 1013B) may be formed on a second side (or second surface) of the first support member (1029B). For example, the second side (or second surface) of the first support member (1029B) may be an opposite surface of the first side (or first surface) of the first support member (1029B). For example, the at least one first groove (1013A, 1013B) of the first support member (1029B) may correspond to, face, or overlap with a side (1141-1) of the housing (1610). For example, at least one first groove (1013A) of the first support (1029B) may correspond to, face, or overlap a groove (1042A) formed on the side (1141-1) of the housing (1610).

[0253] The lens assembly (1624) may include a second lens holder (1039). The lens assembly (1624) may also include a third lens array (1059) (or third lens group) disposed or coupled to the second lens holder (1039). For example, the third lens array (1059) may include a single lens or a plurality of lenses.

[0254] For example, the second lens holder (1039) may include a second lens barrel (1039A) in which a third lens array (1059) is arranged or coupled. For example, the second lens barrel (1039A) may be moved in the first direction by the interaction between the second magnet (1130B) and the second coil (1120B).

[0255] Additionally, the second lens holder (1039) may include a second support (1039B) that is connected or coupled with the second lens barrel (1039A). For example, the second lens barrel (1039A) may have a barrel shape and may include an opening (1039C) (or hole) for coupling the third lens array (1059).

[0256] A first side (or first surface) of the second support member (1039B) may be connected or coupled to the second lens barrel (1039A). The second support member (1039B) may correspond to, face, or overlap with the side (1141-2) of the housing (1610) in a third direction (e.g., in the Y-axis direction). For example, the second support member (1039B) may protrude in the first direction from the rear surface of the second lens barrel (1039A). For example, the second support member (1039B) may protrude in the opposite direction to the first support member (1029B).

[0257] The second support member (1039B) may include at least one second groove (1013C, 1013D) (or second guide groove) for accommodating at least a portion of the cloud members (B5 to B8). For example, the at least one second groove (1013C, 1013D) may be formed on a second side (or second surface) of the second support member (1039B). For example, the second side (or second surface) of the second support member (1039B) may be an opposite surface of the first side (or first surface) of the second support member (1039B).

[0258] For example, at least one second groove (1013C, 1013D) of the second support member (1039B) may correspond to, be opposite to, or overlap with a side portion (1141-2) of the housing (1610). For example, at least one second groove (1013D) of the second support member (1039B) may correspond to, be opposite to, or overlap with a groove (1042B) formed in the side portion (1141-2) of the housing (1610).

[0259] A plurality of lenses included in each of the second and third lens arrays (1049, 1059) may be sequentially arranged or arranged in the first direction. For example, each of the second and third lens arrays (1049, 1059) may include various types of optical lenses. For example, each of the second and third lens arrays (1049, 1059) may include at least one of a front lens having positive power and a rear lens having negative power.

[0260] Each of the grooves (1042A, 1042B) of the housing (1610) and the grooves (1013A to 1013D) of the first and second supports may have a shape that makes contact with the cloud members (B1 to B8) at two or more points. For example, each of the grooves (1042A, 1042B) of the housing (1610) and the grooves (1013A to 1013D) of the first and second supports may have a polygonal (e.g., rectangular), V-shaped, or U-shaped shape.

[0261] The second and third lens units (622, 624) can be prevented from being decentered or tilted when moving by the protrusions (1044A to 1044D) of the housing (1610) and the grooves (1042A, 1042B) of the housing (1610), and / or the grooves (1013A to 1013D) of the first and second support units (1029B, 1039B). As a result, the alignment between the plurality of lens arrays (1049, 1059) can be well matched, thereby preventing the change in the angle of view or the occurrence of focus deviation, and the image quality or resolution of the camera device (100) can be significantly improved.

[0262] The actuator (1100) may include cloud members (B1 to B8) disposed between the housing (1610) and the lens unit (1620). The cloud members (B1 to B8) may be in contact with the housing (1610) and the lens unit (1620). For example, the cloud members (B1 to B8) may be disposed between the side portions (1141-1, 1141-2) of the housing (1610) and the support portions (1029B, 1039B) of the lens unit (1620). The cloud members (B1 to B8) may be in contact with the side portions (1141-1, 1141-2) of the housing (1610) and the support portions (1029B, 1039B) of the lens unit (1620).

[0263] For example, the cloud members (B1 to B8) may be positioned between the inner surface (or groove (1042A, 1042B)) of the side portion (1141-1, 1141-2) of the housing (1610) and the groove (1013A to 1013D) of the support portion (1029B, 1039B). The cloud members (B1 to B8) may contact the inner surface (or groove (1042A, 1042B)) of the side portion (1141-1, 1141-2) of the housing (1610) and the groove (1013A to 1013D) of the support portion (1029B, 1039B).

[0264] The cloud members (B1 to B8) may be expressed as “ball members”, “balls”, or “ball bearings”. For example, the cloud members (B1 to B8) may include at least one ball. Each of the balls (B1 to B8) may have a circular shape and may have a diameter sufficient to support the movement of the lens unit (1620). In another embodiment, the cloud members may be in the form of rollers. For example, the cloud members (B1 to B8) may be made of a metal material, plastic, ceramic, or resin material.

[0265] The cloud members (B1 to B8) can support the lens unit (1620). When the lens unit (1620) moves in the first direction, the cloud members (B1 to B8) can reduce friction between the lens unit (1620) and the housing (1610) by performing a rolling or sliding movement between the lens unit (1620) and the housing (1610). That is, the lens unit (1620) can be moved in a sliding manner in the first direction along the guide unit (1043) of the housing (1610) by contacting the cloud members (B1 to B8).

[0266] For example, the cloud member may include a first cloud member (B1 to B4) and a second cloud member (B5 to B8). The first cloud member (B1 to B4) may be disposed between the guide member (1043) of the housing (1610) and the lens assembly (1622) (e.g., the first support member (1029B)). The second cloud member (B5 to B8) may be disposed between the guide member (1043) of the housing (1610) and the lens assembly (1624) (e.g., the second support member (1039B)).

[0267] Next, the driving unit (1630) is described.

[0268] The driving unit (1630) can move the lens assembly (1622) in a first direction and move the lens assembly (1624) in the first direction. For example, the driving unit (1630) can move at least one lens group, for example, the second lens group or the third lens group, in the first direction or the optical axis direction. The distance in the optical axis direction between the lens assembly (1622) and the lens assembly (1624) can be varied by the driving unit (1630).

[0269] The driving unit (1630) may include a magnet (1130) disposed in the lens unit (1620) and a coil (1120) disposed in the housing (1610). In other embodiments, the magnet may be disposed in the housing and the coil may be disposed in the lens unit.

[0270] The coil (1120) may include a first coil (1120A) disposed on a first side (1141-1) of the housing (1610) and a second coil (1120B) disposed on a second side (1141-2) of the housing (1610).

[0271] The first coil (1120A) may include a plurality of coil units. For example, the first coil (1120A) may include a first coil unit (1031) and a second coil unit (1032). The first coil unit (1031) and the second coil unit (1032) may be arranged or spaced apart from each other in the first direction.

[0272] The second coil (1120B) may include a plurality of coil units. For example, the second coil (1120B) may include a third coil unit (1041) and a fourth coil unit (1042). The third coil unit (1041) and the fourth coil unit (1042) may be arranged or spaced apart from each other in the first direction.

[0273] For example, referring to FIGS. 18A and 18B, each of the coil units of the first coil (1120A) and the second coil (1120B) may have a closed curve or ring shape having a hollow (1201A, 1201B) (or hole). For example, each of the coil units of the first coil (1120A) and the second coil (1120B) may have a coil ring shape wound clockwise or counterclockwise around (or as the center) a third axis that is parallel to the third direction (e.g., the Y-axis direction). For example, the hollow (1201A, 1201B) (or hole) of the coil units (1031, 1032) of the first coil (1120A) may face the first magnet (1130A) in the third direction (e.g., the Y-axis direction). Or, for example, the hollow (or hole) of the coil unit (1041, 1042) of the second coil (1120B) may face the second magnet (1130B) in a third direction (e.g., Y-axis direction).

[0274] A driving signal may be supplied to each of the first coil (1120A) and the second coil (1120B). For example, the driving signal may be a direct current or an alternating current signal. Alternatively, the driving signal may include both direct current and alternating current signals. The driving signal may be in the form of a current or a voltage.

[0275] For example, a first driving signal (e.g., a first current or a first voltage) may be applied to a first coil unit (1031) of a first coil (1120A), and a second driving signal (e.g., a second current or a second voltage) may be applied to a second coil unit (1032) of the first coil (1120A). A third driving signal (e.g., a third current or a third voltage) may be applied to a third coil unit (1041) of a second coil (1120B), and a fourth driving signal (e.g., a fourth current or a fourth voltage) may be applied to a fourth coil unit (1042) of the second coil (1120B).

[0276] The magnet (1130) may include a first magnet (1130A) disposed or coupled to the lens assembly (1622) and a second magnet (1130B) disposed or coupled to the lens assembly (1624). For example, the first magnet (1130A) may be disposed or coupled to the first lens holder (1029) of the lens assembly (1622). The second magnet (1130B) may be disposed or coupled to the second lens holder (1039) of the lens assembly (1624). For example, the first magnet (1130A) may be disposed or coupled to the first support (1029B) of the first lens holder (1029). The second magnet (1130B) may be disposed or coupled to the second support (1039B) of the second lens holder (1039).

[0277] The first magnet (1130A) may include a first magnet portion (1061), a second magnet portion (1062), and a third magnet portion (1063) disposed between the first magnet portion and the second magnet portion (1062). The first magnet portion (1061), the second magnet portion (1062), and the third magnet portion (1063) may be disposed to be spaced apart from each other in the first direction. The first magnet portion (1061) may be a single-pole magnetizing magnet or a two-pole magnet including a N pole and a S pole. The second magnet portion (1062) may be a single-pole magnetizing magnet or a two-pole magnet including a N pole and a S pole. The third magnet portion (1063) may be a single-pole magnetizing magnet or a two-pole magnet including a N pole and a S pole. The magnet section may also be expressed alternatively as a “magnet unit” or a “segment”.

[0278] The first magnet (1130A) may include a first partition wall (1060A) disposed between the first magnet portion (1061) and the third magnet portion (1063) and a second partition wall (1060B) disposed between the second magnet portion (1062) and the third magnet portion (1063). The first partition wall (1060A) separates or isolates the first magnet portion (1061) and the third magnet portion (1063), and may be a portion that is substantially non-magnetic and has almost no polarity. The second partition wall (1060B) separates or isolates the second magnet portion (1062) and the third magnet portion (1063), and may be a portion that is substantially non-magnetic and has almost no polarity.

[0279] For example, each of the first and second bulkheads (1060A, 1060B) may be a non-magnetic material, a void, air, etc. For example, the bulkhead may be expressed as a “neutral zone” or a “neutral area.” The width (L4, L5) of each of the bulkheads (1060A, 1060B) may be greater than the width of the boundary between the N pole and the S pole of each of the first to third magnet sections (1061, 1062, 1063).

[0280] The N pole and the S pole of each of the first to third magnet parts (1061, 1062, 1063) may be opposite or facing each other in a third direction (e.g., in the Y-axis direction). The first magnet part (1061) and the third magnet part (1063) may be arranged so that their opposite polarities face each other or face each other in the first direction (e.g., in the Z-axis direction). The second magnet part (1062) and the third magnet part (1063) may be arranged so that their opposite polarities face each other or face each other in the first direction (e.g., in the Z-axis direction). The first magnet part (1061) and the second and third magnet parts (1063) may be arranged so that their same polarities face each other or face each other in the first direction (e.g., in the Z-axis direction).

[0281] In a third direction (e.g., in the Y-axis direction), the first magnet (1130A) may correspond to, oppose, or overlap the coil units (1031, 1032) of the first coil (1120A). Also, for example, in a third direction (e.g., in the Y-axis direction), the second magnet (1130B) may correspond to, oppose, or overlap the coil units (1041, 1042) of the second coil (1120B).

[0282] The second magnet (1130B) may include a fourth magnet portion (1064), a fifth magnet portion (1065), and a sixth magnet portion (1066) disposed between the fourth magnet portion (1064) and the fifth magnet portion (1065). In addition, the second magnet (1130B) may include a third partition wall (1060C) disposed between the fourth magnet portion (1064) and the fifth magnet portion (1065), and a fourth partition wall (1060D) disposed between the fifth magnet portion (1065) and the sixth magnet portion (1066).

[0283] The description of the first magnet portion (1061), the second magnet portion (1062), the third magnet portion (1063), the first bulkhead (1060A), and the second bulkhead (1060B) of the first magnet (1130A) can be applied or analogically applied to the fourth magnet portion (1064), the fifth magnet portion (1065), the sixth magnet portion (1066), the third bulkhead (1060C), and the fourth bulkhead (1060D) of the second magnet (1130B).

[0284] The first lens assembly (1622) can be moved in the first direction by the electromagnetic force resulting from the interaction between the first coil (1120A) and the first magnet (1130A). In addition, the second lens assembly (1624) can be moved in the first direction by the electromagnetic force resulting from the interaction between the second coil (1120B) and the second magnet (1130B).

[0285] By controlling the first driving signal of the first coil unit (1031) and the second driving signal of the second coil unit (1032), the movement of the first lens assembly (1622) can be controlled. By controlling the third driving signal of the third coil unit (1041) and the fourth driving signal of the fourth coil unit (1042), the movement of the second lens assembly (1624) can be controlled. As the movement of each of the first lens assembly (1622) and the second lens assembly (1624) is controlled, the position (or displacement) of each of the first lens assembly (1622) and the second lens assembly (1624) can be controlled, and thereby zooming and auto-focusing of the camera device (1200) can be performed.

[0286] The driving unit (1630) may include a circuit board (1190, or substrate) electrically connected to the coil (1120). For example, the circuit board (1190) may be a printed circuit board. The circuit board may be disposed on a fixing member. The circuit board (1190) may be disposed on a housing (1610). The circuit board (1190) may include a first substrate (1192) disposed or coupled to a first side (1141-1) of the housing (1610) and a second substrate (1194) disposed or coupled to a second side (1141-2) of the housing (1610). In addition, the circuit board (1190) may further include a third substrate (1196) connecting the first substrate (1192) and the second substrate (1194).

[0287] The first coil (1120A) may be arranged or mounted on the first surface of the first substrate (1192). At this time, the first surface of the first substrate (1192) may be a surface facing the first side (1141-1) of the housing (1610) in a third direction (e.g., in the Y-axis direction). The second coil (1120B) may be arranged or mounted on the first surface of the second substrate (1194). At this time, the first surface of the second substrate (1194) may be a surface facing the second side (1141-2) of the housing (1610) in a third direction (e.g., in the Y-axis direction).

[0288] The first substrate (1192) may be electrically connected to the first coil (1120A). In addition, the first substrate (1192) may include a plurality of terminals (1092A). For example, the plurality of terminals (1092A) of the first substrate (1192) may be formed on a second surface of the first substrate (1192). For example, the second surface of the first substrate (1192) may be an opposite surface of the first surface of the first substrate (1192). The first coil (1120A) may be disposed on the first substrate (1192). The first coil (1120A) may be coupled to the first substrate (1192) by solder or a conductive adhesive. The first coil (1120A) may be disposed on the first surface of the first substrate (1192).

[0289] The second substrate (1194) may be electrically connected to the second coil (1120B). For example, the second substrate (1194) may include a plurality of terminals (92B). For example, the plurality of terminals (92B) of the second substrate (1194) may be formed on a second surface of the second substrate (1194). For example, the second surface of the second substrate (1194) may be an opposite surface of the first surface of the circuit board (1192). The second coil (1120B) may be disposed on the second substrate (1194). The second coil (1120B) may be coupled to the second substrate (1194) by solder or a conductive adhesive. The second coil (1120B) may be disposed on the first surface of the second substrate (1194). The third substrate (1196) may be positioned on the lower portion (1142B) of the housing (1610). In another embodiment, the third substrate (1196) may be positioned on the upper portion (1142A) of the housing (1610).

[0290] The driving unit (1630) may include a yoke (1080) disposed on a circuit board (1190). The yoke (1080) may include a first yoke (1082) disposed on a first substrate (1192) and a second yoke (1084) disposed on a second substrate (1194). The first yoke (1082) may be disposed on a second surface of the first substrate (1192), and the second yoke (1084) may be disposed on a second surface of the second substrate (1194). The first yoke (1082) can serve to increase the electromagnetic force due to the interaction between the first coil (1120A) and the first magnet (1130A), and the second yoke (1084) can serve to increase the electromagnetic force due to the interaction between the second coil (1120B) and the second magnet (1130B).

[0291] The driving unit (1630) may include a first position sensor (1071) to perform feedback driving for accurate zooming. In addition, the driving unit (1630) may include a second position sensor (1072) to perform feedback driving for accurate AF operation.

[0292] The first position sensor (1071) can detect the position or displacement of the lens assembly (1622). The first position sensor (1071) can detect the magnetic field of the first magnet (1130A). The first position sensor (1071) can detect the displacement of the first magnet (1130A). The first position sensor (1071) can be arranged or mounted on the first substrate (1192). The first position sensor (1071) can be electrically connected to the first substrate (1192). For example, the first position sensor (1071) can be arranged, coupled, or mounted on the first surface of the first substrate (1192). The first position sensor (1071) can be arranged within the hollow of the first coil (1120A).

[0293] The first position sensor (1071) may include a first sensor (1071A) and a second sensor (1071B). For example, the first sensor (1071A) and the second sensor (1071B) may be arranged spaced apart from each other in the first direction. For example, the first sensor (1071A) may be positioned within the hollow (1201A) of the first coil unit (1031), and the second sensor (1071B) may be positioned within the hollow (1201B) of the second coil unit (1032). In another embodiment, the first sensor (1071A) may be positioned outside the hollow of the first coil unit (1031), and the second sensor (1071B) may be positioned outside the hollow of the second coil unit (1032). For example, in another embodiment, either one of the first and second sensors (1071A, 1071B) may be positioned in the space between the first coil unit (1031) and the second coil unit (1032).

[0294] The second position sensor (1072) can detect the position or displacement of the lens assembly (1624). The second position sensor (1072) can detect the magnetic field of the second magnet (1130B). The second position sensor (1072) can detect the displacement of the second magnet (1130B). The second position sensor (1072) can be disposed or mounted on the second substrate (1194). The second position sensor (1072) can be electrically connected to the second substrate (1194). For example, the second position sensor (1072) can be disposed, coupled, or mounted on the first surface of the second substrate (1194). The second position sensor (1072) can be disposed within the hollow of the second coil (1120B). In other embodiments, each of the first position sensor (1071) and the second position sensor (1072) may include three or more sensors.

[0295] The second position sensor (1072) may include a third sensor (1072A) and a fourth sensor (1072B). For example, the third sensor (1072A) and the fourth sensor (1072B) may be arranged spaced apart from each other in the first direction. For example, the third sensor (1072A) may be positioned within the hollow of the third coil unit (1041) of the second coil (1120B), and the fourth sensor (1072B) may be positioned within the hollow of the fourth coil unit (1042). In another embodiment, the third sensor (1072A) may be positioned outside the hollow of the third coil unit (1041), and the fourth sensor (1072B) may be positioned outside the hollow of the fourth coil unit (1042).

[0296] For example, each of the first to fourth sensors (1071A, 1071B, 1072A, 1072B) may be a Hall sensor or a Tunnel MagnetoResistance (TMR) sensor. For example, the TMR sensor may be a TMR linear magnetic field sensor. In another embodiment, at least one of the first to fourth sensors may be a driver IC including a Hall sensor.

[0297] In another embodiment, the first position sensor (1071) may include one sensor, and the second position sensor (1072) may include one sensor. In this case, the one sensor may be a Hall sensor or a driver IC including a Hall sensor.

[0298] For example, each of the first and second sensors (1071A, 1071B) may include two input terminals for inputting a power or driving signal and two output terminals for outputting an output signal. The two output terminals of the first sensor (1071A) and the two output terminals of the second sensor (1071B) may be connected in series. The output signal of the first position sensor (1071) may be an output signal output from the output terminals of the first and second sensors (1071A, 1071B) that are connected in series. The driving signals supplied to the first coil (1120A) may be controlled using the output signal of the first position sensor (1071).

[0299] In another embodiment, each of the first and second sensors (1071A, 1071B) may output an output signal (or output voltage), and one or more of the output signals output from each of the first and second sensors (1071A, 1071B) may be used to detect the displacement or position of the first magnet (1130A) or the lens assembly (1622).

[0300] Also, for example, each of the third and fourth sensors (1072A, 1072B) may include two input terminals for inputting a power or drive signal and two output terminals for outputting an output signal. The two output terminals of the third sensor (1072A) and the two output terminals of the fourth sensor (1072B) may be connected in series. The output signal of the second position sensor (1072) may be an output signal output from the output terminals of the third and fourth sensors (1072A, 1072B) that are connected in series. The drive signals supplied to the second coil (1120B) may be controlled using the output signal of the second position sensor (1072).

[0301] In another embodiment, each of the third and fourth sensors (1072A, 1072B) may output an output signal (or output voltage), and one or more of the output signals output from each of the third and fourth sensors (1072A, 1072B) may be used to detect the displacement or position of the second magnet (1130B) or the lens assembly (1624).

[0302] For example, within a stroke section of the lens assembly (1622) (or the first lens holder (1029)) in the first direction, the first position sensor (1071) may face or overlap with the first magnet (1130A) in the third direction (e.g., in the Y-axis direction). For example, within a stroke section of the lens assembly (1624) (or the second lens holder (1039)) in the first direction, the second position sensor (1072) may face or overlap with the second magnet (1130B) in the third direction (e.g., in the Y-axis direction).

[0303] Referring to FIG. 15b, the camera device (1200) may include buffer members (1021A to 1021D) disposed between the lens unit (1620) and the housing (1610). The buffer members (1021A to 1021D) may absorb collisions or impacts between the lens assemblies (1622, 1624) and the housing (1610), and may prevent damage or breakage of the lens assemblies (1622, 1624).

[0304] FIG. 18a is a plan view of the first magnet (1130A), the coil units (1031, 1032) of the first coil (1120A), and the first position sensor (1071), and FIG. 18b is a cross-sectional view of the first magnet (1130A), the coil units (1031, 1032) of the first coil (1120A), and the first position sensor (1071), and FIGS. 19a and 19b illustrate step-by-step control of drive signals supplied to the first coil (1120) for movement in the rearward direction of the first magnet (1130A), and FIGS. 20a and 20b illustrate step-by-step control of drive signals supplied to the first coil (1120) for movement in the forward direction of the first magnet (1130A).

[0305] At this time, the forward direction may be the direction from the first lens assembly (1622) to the second lens assembly (1624). Alternatively, the forward direction may be the direction in which light is incident on the lens unit (1620). Alternatively, the forward direction may be the direction from the lens unit (1620) to the image sensor (1810). The rearward direction may be the opposite direction of the forward direction. In Fig. 19, the X mark may be the direction of the current going down below the ground, and the dot mark may be the direction of the current coming forward through the ground.

[0306] Referring to FIGS. 18A and 18B, the first magnet portion (1061) and the third magnet portion (1063) may be arranged in the first direction with the first partition wall (1060A) interposed therebetween. For example, the second magnet portion (1062) and the third magnet portion (1063) may be arranged facing each other in the first direction with the second partition wall (1060B) interposed therebetween.

[0307] For example, the S pole of each of the first magnet portion (1061) and the second magnet portion (1062) may be arranged closer to the coil units (1031, 1032) of the first coil (1120A) than the N pole. The N pole of the third magnet portion (1063) may be arranged closer to the coil units (1031, 1032) of the first coil (1120A) than the S pole. In another embodiment, the positions of the N poles and the S poles of each of the first to third magnet portions (1061, 1062, 1063) of FIG. 18B may be reversed. The first magnet (1130A) may overlap the coil units (1031, 1032) of the first coil (1120A) in the third direction (e.g., the Y-axis direction).

[0308] The first coil unit (1031) may include a first part (1003A) and a second part (1003B) positioned facing or opposite each other in a first direction, and a third part (1003C) and a fourth part (1003D) positioned between the first part (1003A) and the second part (1003B) and positioned facing or opposite each other. For example, the third part (1003C) and the fourth part (1003D) may face each other in a second direction (e.g., the X-axis direction). For example, the third part (1003C) may connect one side of the first part (1003A) and one side of the second part (1003B), and the fourth part (1003D) may connect the other side of the first part (1003A) and the other side of the second part (1003B).

[0309] The second coil unit (1032) may include a fifth part (1003E) and a sixth part (1003F) positioned facing or opposite each other in the first direction, and a seventh part (1003G) and an eighth part (1003H) positioned between the fifth part (1003E) and the sixth part (1003F) and positioned facing or opposite each other.

[0310] For example, the seventh part (1003G) and the eighth part (1003H) may be positioned facing or opposite to each other in the second direction (e.g., in the X-axis direction). For example, the seventh part (1003G) may connect one side of the fifth part (1003E) and one side of the sixth part (1003G), and the eighth part (1003H) may connect the other side of the fifth part (1003E) and the other side of the sixth part (1003G).

[0311] The length (L31) of the first magnet (1130A) in the first direction may be smaller than the maximum distance (L32) in the first direction from one end of the first coil unit (1031) to one end of the second coil unit (1032) (L31 <L32). 예컨대, 최대 거리(L32)는 제1 및 제2 코일 유닛들(1031,1032)의 제1 방향으로의 길이(L12, L22)와 제1 및 제2 코일 유닛들(1031,1032) 간의 이격 거리(D1)를 합한 것일 수 있다.

[0312] For example, the length (L31) of the first magnet (1130A) in the first direction may be greater than the length (L12, L22) of each of the first and second coil units (1031, 1032) in the first direction (L31 > L12, L22).

[0313] The length (L1) of the first magnet portion (1061) in the first direction may be greater than the length (L3) of the third magnet portion (1063) in the first direction (L1>L3). The length (L2) of the second magnet portion (1062) in the first direction may be greater than the length (L3) of the third magnet portion (1063) in the first direction (L2>L3). This is to prevent the electromagnetic force between the first coil (1120A) of the first magnet (1130A) from decreasing when the first and second coil units (1031, 1032) described later are selectively driven, and to secure sufficient driving force to move the lens assembly (1622). L1 and L2 may be the same, but in other embodiments, L1 may be smaller or larger than L2.

[0314] The length (L1, L2, L3) of each of the first to third magnet parts (1061 to 1063) in the first direction may be smaller than the length (L12) of the first coil unit (1031) in the first direction. The length (L1, L2, L3) of each of the first to third magnet parts (1061 to 1063) in the first direction may be smaller than the length (L22) of the second coil unit (1032) in the first direction.

[0315] The length (L1) of the first magnet portion (1061) in the first direction may be greater than the length (K2) of the hollow portion (1201A, 1201B) of the first coil unit (1031) (or the second coil unit (1032)) in the first direction (L1>K2). The length (L2) of the second magnet portion (1062) in the first direction may be greater than the length (K2) of the hollow portion (1201A, 1201B) of the first coil unit (1031) (or the second coil unit (1032)) in the first direction.

[0316] The length (L1, L2, L3) of each of the first to third magnet portions (1061 to 1063) in the first direction may be greater than the length (K1) of the first part (1003A) (or the second part (1003B)) of the first coil unit (1031) in the first direction. The length (L1, L2, L3) of each of the first to third magnet portions (1061 to 1063) in the first direction may be greater than the length (K1) of the fifth part (1003E) (or the sixth part (1003F)) of the second coil unit (1032) in the first direction. For example, K1 and L4 may be the same. In another embodiment, K1 may be smaller than L4. In yet another embodiment, K1 may be greater than L4.

[0317] The length (L1, L2, L3) of each of the first to third magnet sections (1061 to 1063) in the first direction may be greater than the length (L4) of the first bulkhead (1060A) in the first direction. The length (L1, L2, L3) of each of the first to third magnet sections (1061 to 1063) in the first direction may be greater than the length (L5) of the second bulkhead (1060B) in the first direction.

[0318] The lengths (L1, L2) of each of the first magnet portion (1061) and the second magnet portion (1062) in the first direction may be greater than the separation distance (D1) between the first coil unit (1031) and the second coil unit (1032) (L1>D1, L2>D1). The length (L3) of the third magnet portion (1063) in the first direction may be equal to the separation distance (D1) between the first coil unit (1031) and the second coil unit (1032) (L3=D1). In another embodiment, the length (L3) of the third magnet portion (1063) in the first direction may be greater than the separation distance (D1) between the first coil unit (1031) and the second coil unit (1032). In yet another embodiment, L3 may be smaller than D1.

[0319] The separation distance (D1) between the first coil unit (1031) and the second coil unit (1032) may be greater than the length (L4) of the first partition wall (1060A) in the first direction. The separation distance (D1) between the first coil unit (1031) and the second coil unit (1032) may be greater than the length (L5) of the second partition wall (1060B) in the first direction. The separation distance (D1) between the first coil unit (1031) and the second coil unit (1032) may be less than the length (K2) of the hollow portion (1201A, 1201B) of the first coil unit (1031) (or the second coil unit (1032)) in the first direction. In another embodiment, the separation distance (D1) between the first coil unit (1031) and the second coil unit (1032) may be equal to the length (K2) of the hollow portion (1201A, 1201B) of the first coil unit (1031) (or the second coil unit (1032)) in the first direction.

[0320] The length (L31) of the first magnet (1130A) in the first direction may be greater than the length (L41) of the first magnet (1130A) in the second direction (e.g., in the X-axis direction) (L31 > L41). The length (L41) of the first magnet (1130A) in the second direction (e.g., in the X-axis direction) may be less than the lengths (L11, L21) of each of the first and second coil units (1031, 1032) in the second direction (L41 < L11, L21).

[0321] Each of the coil units (1031, 1032) of the first coil (1120A) may have the same shape. Also, for example, each of the coil units (1031, 1032) of the first coil (1120A) may have the same number of turns (or number of rotations). For example, the lengths (L12, L22) of each of the coil units (1031, 1032) of the first coil (1120A) in the first direction may be the same. Also, for example, the lengths (H2) of each of the coil units (1031, 1032) of the first coil (1120A) in the third direction (e.g., the Y-axis direction) may be the same. In another embodiment, the number of turns, the length in the first direction, or the length in the second direction of at least one of the coil units of the first coil (1120A) may be different.

[0322] The length (H1) of the first magnet (1130A) in the third direction (e.g., in the Y-axis direction) may be less than or equal to the length (H2) of the coil unit of the first coil (1120A) in the third direction (H1 ≤ H2). In another embodiment, the length (H1) of the first magnet (1130A) in the third direction (e.g., in the Y-axis direction) may be greater than the length (H2) of the coil unit of the first coil (1120A) in the third direction (e.g., in the Y-axis direction).

[0323] Referring to FIGS. 19A to 20B, the stroke section (or movement section) of the first lens assembly (1622) (or the first magnet (1130A)) may range from a first position (position 1) to a second position (position 2).

[0324] The first position (position 1) may be a position where the first lens assembly (1622) (or the first magnet (1130A)) is closest to the image sensor (1810). The second position (position 2) may be a position where the first lens assembly (1622) (or the first magnet (1130A)) is farthest from the image sensor (1810).

[0325] A first driving signal may be supplied to the first coil unit (1031) of the first coil (1120A), and a second driving signal may be supplied to the second coil unit (1032) of the first coil (1120A). Within the stroke section of the first lens assembly (1622), either the first driving signal or the second driving signal may be selectively not supplied to the first coil (1120A).

[0326] Referring to FIGS. 19A and 19B , the rear stroke section may include a plurality of sections. The plurality of sections may be defined based on the overlapping relationship in the third direction between the first magnet (1130A) and the first coil (1120A). For example, the rear stroke section may include a first section (R_stage 1) to a sixth section (R_stage 6). In another embodiment, the rear stroke section may include two or more consecutive sections from the first section (R_stage 1) to the sixth section (R_stage 6). The number of sections included in the rear stroke section may be two, three, four, or five. For example, in another embodiment, the rear stroke section may include a second section to a fifth section. In yet another embodiment, the rear stroke section may include more sections than the six sections of FIGS. 19A and 19B .

[0327] In the first section (R_stage 1), the first magnet (1130A) overlaps the first coil unit (1031) in a third direction (e.g., in the Y-axis direction) and does not overlap the second coil unit (1032) in the third direction. In the first section (R_stage 1), the first magnet portion (1061) does not overlap the first coil (1120A) in the third direction. In the first section (R_stage 1), the first magnet portion (1061) may be positioned forward with respect to the first coil unit (1031). In addition, in the first section (R_stage 1), the first partition wall (1060A) does not overlap the first coil (1120A) in the third direction. In the first section (R_stage 1), the third magnet portion (1063) may overlap the first coil unit (1031) in the third direction.

[0328] In the first section (R-stage 1), the first driving signal may be supplied to the first coil unit (1031), and the second driving signal may not be supplied to the second coil unit (1032). At this time, the direction of the current of the first driving signal may be a direction that moves the first magnet (1130A) backward. In the first section (R-stage 1), the first driving signal is turned on and the second driving signal is turned off, so that the current consumption and power consumption required for the movement of the lens assembly (1622) can be reduced.

[0329] In the second section (R_stage 2), the second magnet portion (1062) can overlap with the second coil unit (1032) in the third direction. In the second section (R_stage 2), the second magnet portion (1062) can overlap with the fifth portion (1003E) of the second coil unit (1032) in the third direction.

[0330] In the second section (R_stage 2), the first bulkhead (1060A) and the second bulkhead (1060B) may overlap with the first coil unit (1031) in the third direction. Also, in the second section (R_stage 2), the first bulkhead (1060A) and the first part (1003A) of the first coil unit (1031) may overlap with each other in the third direction. In the second section (R_Stage 2), the second bulkhead (1060B) and the second part (1003B) of the first coil unit (1031) may overlap with each other in the third direction.

[0331] In the second section (R_stage 2), the first magnet portion (1061) does not overlap with the first coil (1120A) in the third direction. In the second section (R_stage 2), the first partition wall (1060A) and the second partition wall (1060B) may overlap with the first coil unit (1031) in the third direction.

[0332] In the second section (R_Stage 2), the third magnet portion (1063) may include a first portion that overlaps with the hollow portion (1201A) of the first coil unit (1031) in the third direction and a second portion that does not overlap with the hollow portion (1201A) of the first coil unit (1031) in the third direction. In the second section (R_Stage 2), the area of ​​the first portion of the third magnet portion (1063) is larger than the area of ​​the second portion of the third magnet portion (1063). For example, in the second section (R_Stage 2), the area of ​​the first portion of the third magnet portion (1063) may be at least twice the area of ​​the second portion of the third magnet portion (1063).

[0333] In the second section (R_stage 2), the first driving signal may not be supplied to the first coil unit (1031), and the second driving signal may be supplied to the second coil unit (1032). The current direction of the second driving signal supplied in the second section (R_stage 2) may be a direction that moves the first magnet (1130A) backward. For example, the current direction of the second driving signal supplied in the second section (R_stage 2) may be opposite to the current direction of the first driving signal of the first section (R_stage 1). For example, the current direction of the driving signal flowing to each of the first and second coil units (1031, 1032) may be clockwise (or counterclockwise) in a section having a positive (+) current value, and may be counterclockwise (or clockwise) in a section having a negative (-) current value. In the second section (R-stage 2), the first driving signal is turned off and only the second driving signal is turned on, so that the current consumption and power consumption required for movement of the lens assembly (1622) can be reduced.

[0334] In the third section (R_Stage 3), the first magnet portion (1061) and the third magnet portion (1063) can overlap the first coil unit (1031) in the third direction, and the second magnet portion (1062) can overlap the second coil unit (1032) in the third direction. In the third section (R_Stage 3), since the three magnet portions (1061, 1062, 1063) overlap the first coil (1120A), the electromagnetic force (or driving force) between the first magnet (1130A) and the first coil (1120A) can be increased.

[0335] For example, in the third section (R_Stage 3), the first magnet portion (1061) may overlap with the first part (1003A) of the first coil unit (1031) in the third direction, the third magnet portion (1063) may overlap with the second part (1003B) of the first coil unit (1031) in the third direction, and the second magnet portion (1062) may overlap with the fifth part (1003E) of the second coil unit (1032) in the third direction.

[0336] In the third section (R_stage 3), a first driving signal may be supplied to the first coil unit (1031), and a second driving signal may be supplied to the second coil unit (1032). The current direction of each of the first driving signal and the second driving signal in the third section (R_stage 3) may be a direction that moves the first magnet (1130A) backward. For example, the current directions of the first driving signal and the second driving signal in the third section (R_stage 3) may be the same as each of the current directions of the first driving signal and the second driving signal in the third section (R_stage 3) may be the same as the current direction of the second driving signal in the second section (R_stage 2).

[0337] In the fourth section (R_stage 4), the first magnet portion (1061) can overlap with the first coil unit (1031) and the hollow portion (1201A) of the first coil unit (1031) in the third direction, and the third magnet portion (1063) can overlap with the space between the first coil unit (1031) and the second coil unit (1032) in the third direction.

[0338] In the fourth section (R_stage 4), the second magnet portion (1062) can overlap with the hollow portion (1201B) of the second coil unit (1032) in the third direction, the first partition wall (1060A) can overlap with the first coil unit (1031) in the third direction, and the second partition wall (1060B) can overlap with the second coil unit (1032) in the third direction.

[0339] In the fourth section (R_stage 4), the third magnet portion (1063) may include a first portion that overlaps the space between the first coil unit (1031) and the second coil unit (1032) in the third direction and a second portion that does not overlap the space between the first coil unit (1031) and the second coil unit (1032) in the third direction. In the fourth section (R_stage 4), the area of ​​the first portion of the third magnet portion (1063) is larger than the area of ​​the second portion of the third magnet portion (1063). For example, the area of ​​the first portion of the third magnet portion (1063) may be at least twice the area of ​​the second portion of the third magnet portion (1063).

[0340] Additionally, in the fourth section (R_stage 4), the second magnet portion (1062) may include a first portion that overlaps with the hollow (1201B) of the second coil unit (1032) in the third direction and a second portion that does not overlap with the hollow (1201B) of the second coil unit (1032) in the third direction. In the fourth section (R_stage 4), the area of ​​the first portion of the second magnet portion (1062) is larger than the area of ​​the second portion of the second magnet portion (1062). For example, in the fourth section (R_stage 4), the area of ​​the first portion of the second magnet portion (1062) may be more than twice the area of ​​the second portion of the second magnet portion (1062).

[0341] In the fourth section (R_stage 4), the first driving signal may be supplied to the first coil unit (1031), and the second driving signal may not be supplied to the second coil unit (1032). Since the second driving signal is turned off in the fourth section (R_stage 4), the current consumption and power consumption required for movement of the lens assembly (1622) can be reduced.

[0342] In the fifth section (R_stage 5), the first magnet portion (1061) can overlap with the first coil unit (1031) in the third direction, the second magnet portion (1062) can overlap with the second coil unit (1032) in the third direction, and the third magnet portion (1063) can overlap with the second coil unit (1032) in the third direction. For example, in the fifth section (R_stage 5), the first magnet portion (1061) may overlap with the second portion (1003B) of the first coil unit (1031) in the third direction, the second magnet portion (1062) may overlap with the sixth portion (1003F) of the second coil unit (1032) in the third direction, and the third magnet portion (1063) may overlap with the fifth portion (1003E) of the second coil unit (1032) in the third direction. In the fifth section (R_stage 5), a first driving signal may be supplied to the first coil unit (1031), and a second driving signal may be supplied to the second coil unit (1032).

[0343] In the sixth section (R_stage 6), the second magnet portion (1062) and the third magnet portion (1063) do not overlap with the first coil unit (1031) in the third direction. In the sixth section (R_stage 6), the first magnet portion (1061) may include a first portion that overlaps with the first coil unit (1031) in the third direction and a second portion that does not overlap with the first coil unit (1031) in the third direction. In the sixth section (R_stage 6), the area of ​​the second portion of the first magnet portion (1061) is larger than the area of ​​the first portion of the first magnet portion (1061). For example, in the sixth section (R_stage 6), the area of ​​the second portion of the first magnet portion (1061) may be more than twice the area of ​​the first portion of the first magnet portion (1061).

[0344] In the sixth section (R_stage 6), the first driving signal may not be supplied to the first coil unit (1031), and the second driving signal may be supplied to the second coil unit (1032). Since the first driving signal is turned off in the sixth section, the current consumption and power consumption required for movement of the lens assembly (1622) can be reduced.

[0345] The current direction of the second driving signal supplied in the sixth section (R_stage 6) may be a direction that moves the first magnet (1130A) backward. For example, the current direction of the second driving signal supplied in the sixth section (R_stage 6) may be the opposite to the current direction of the second driving signal of the fifth section (R_stage 5). In addition, by making the current direction of the second driving signal in the sixth section (R_stage 6) opposite to that of the fifth section (R_stage 5), the first magnet (1130A) can be moved further backward, thereby increasing the stroke range of the lens assembly (1622).

[0346] Referring to FIGS. 20A and 20B , the forward stroke section may include a plurality of sections. The forward stroke section may include a first section (F_stage 1) to a sixth section (F_stage 6). The first to sixth sections (F_stage 1 to F_stage 6) of the forward stroke section may correspond to the first to sixth sections (R_stage 1 to R_stage 6) of the rear stroke section. In another embodiment, the forward stroke section may include two or more consecutive sections from the first section (F_stage 1) to the sixth section (F_stage 6). The number of sections included in the forward stroke section may be two, three, four, or five. For example, in another embodiment, the forward stroke section may include the second section to the fifth section. In yet another embodiment, the forward stroke section may include more sections than the six sections of FIGS. 20A and 20B .

[0347] The description of the rear stroke section of FIGS. 19a and 19b can be applied analogously to the front stroke section of FIGS. 20a and 20b.

[0348] In the first section (F_stage 1), the first magnet (1130A) overlaps the second coil unit (1032) in a third direction (e.g., in the Y-axis direction) and does not overlap the first coil unit (1031) in the third direction. In the first section (F_stage 1), the second magnet portion (1062) does not overlap the first coil (1120A) in the third direction. In the first section (F_stage 1), the second magnet portion (1062) may be positioned rearward with respect to the second coil unit (1032). In addition, in the first section (F_stage 1), the second partition wall (1060B) does not overlap the first coil (1120A) in the third direction. In the first section (F_stage 1), the first magnet portion (1061) may overlap the second coil unit (1032) in the third direction.

[0349] In the first section (F-stage 1), a second driving signal may be supplied to the second coil unit (1032), and the first driving signal may not be supplied to the first coil unit (1031). At this time, the direction of the current of the second driving signal may be a direction that moves the first magnet (1130A) in the omnidirectional direction.

[0350] In the second section (F_stage 2), the first magnet portion (1061) can overlap with the first coil unit (1031) in the third direction. In the second section (F_stage 2), the first magnet portion (1061) can overlap with the second part (1003B) of the first coil unit (1031) in the third direction. In the second section (F_stage 2), the first partition wall (1060A) and the second partition wall (1060B) can overlap with the second coil unit (1032) in the third direction. In the second section (F_stage 2), the first partition wall (1060A) and the fifth part (1003E) of the second coil unit (1032) can overlap with each other in the third direction. In the second section (F_stage 2), the second bulkhead (1060B) and the sixth part (1003F) of the second coil unit (1032) can overlap each other in the third direction.

[0351] In the second section (F_stage 2), the second magnet unit (1062) does not overlap with the first coil (1120A) in the third direction. In the second section (F_stage 2), the first partition wall (1060A) and the second partition wall (1060B) may overlap with the second coil unit (1032) in the third direction.

[0352] In the second section (F_Stage 2), the third magnet portion (1063) may include a first portion that overlaps with the hollow (1201B) of the second coil unit (1032) in the third direction and a second portion that does not overlap with the hollow (1201B) of the second coil unit (1031) in the third direction. In the second section (F_Stage 2), the area of ​​the first portion of the third magnet portion (1063) is larger than the area of ​​the second portion of the third magnet portion (1063). For example, in the second section (F_Stage 2), the area of ​​the first portion of the third magnet portion (1063) may be at least twice the area of ​​the second portion of the third magnet portion (1063).

[0353] In the second section (F_stage 2), the second driving signal may not be supplied to the second coil unit (1032), and the first driving signal may be supplied to the first coil unit (1031). The current direction of the first driving signal supplied in the second section (F_stage 2) may be a direction that moves the first magnet (1130A) forward.

[0354] In the third section (F_stage 3), the second magnet unit (1062) and the third magnet unit (1063) can overlap with the second coil unit (1032) in the third direction, and the first magnet unit (1061) can overlap with the first coil unit (1031) in the third direction.

[0355] For example, in the third section (F_stage 3), the first magnet portion (1061) may overlap with the second part (1003B) of the first coil unit (1031) in the third direction, the third magnet portion (1063) may overlap with the fifth part (1003E) of the second coil unit (1032) in the third direction, and the second magnet portion (1062) may overlap with the sixth part (1003F) of the second coil unit (1032) in the third direction.

[0356] In the third section (F_stage 3), a first driving signal may be supplied to the first coil unit (1031), and a second driving signal may be supplied to the second coil unit (1032). The current direction of each of the first driving signal and the second driving signal in the third section (F_stage 3) may be a direction that moves the first magnet (1130A) forward.

[0357] In the fourth section (F_stage 4), the second magnet portion (1062) can overlap with the second coil unit (1032) and the hollow portion (1201B) of the second coil unit (1032) in the third direction, and the third magnet portion (1063) can overlap with the space between the first coil unit (1031) and the second coil unit (1032) in the third direction.

[0358] In the fourth section (F_stage 4), the first magnet portion (1061) can overlap with the hollow portion (1201A) of the first coil unit (1031) in the third direction, the first partition wall (1060A) can overlap with the first coil unit (1032) in the third direction, and the second partition wall (1060B) can overlap with the second coil unit (1032) in the third direction.

[0359] In the fourth section (F_stage 4), the third magnet portion (1063) may include a first portion that overlaps the space between the first coil unit (1031) and the second coil unit (1032) in the third direction and a second portion that does not overlap the space between the first coil unit (1031) and the second coil unit (1032) in the third direction. In the fourth section (F_stage 4), the area of ​​the first portion of the third magnet portion (1063) is larger than the area of ​​the second portion of the third magnet portion (1063). For example, the area of ​​the first portion of the third magnet portion (1063) may be at least twice the area of ​​the second portion of the third magnet portion (1063).

[0360] Additionally, in the fourth section (F_stage 4), the second magnet portion (1062) may include a first portion that overlaps with the hollow (1201B) of the second coil unit (1032) in the third direction and a second portion that does not overlap with the hollow (1201B) of the second coil unit (1032) in the third direction. In the fourth section (F_stage 4), the area of ​​the first portion of the second magnet portion (1062) is larger than the area of ​​the second portion of the second magnet portion (1062). For example, in the fourth section (F_stage 4), the area of ​​the first portion of the second magnet portion (1062) may be more than twice the area of ​​the second portion of the second magnet portion (1062).

[0361] In the fourth section (F_stage 4), the second driving signal may be supplied to the second coil unit (1032), and the first driving signal may not be supplied to the first coil unit (1031).

[0362] In the fifth section (F_stage 5), the first magnet portion (1061) can overlap with the first coil unit (1031) in a third direction, the second magnet portion (1062) can overlap with the second coil unit (1032) in a third direction, and the third magnet portion (1063) can overlap with the second coil unit (1032) in a third direction. In the fifth section (F_stage 5), a first driving signal can be supplied to the first coil unit (1031), and a second driving signal can be supplied to the second coil unit (1032).

[0363] In the sixth section (F_stage 6), the first magnet portion (1061) and the third magnet portion (1063) do not overlap with the second coil unit (1032) in the third direction. In the sixth section (F_stage 6), the second magnet portion (1062) may include a first portion that overlaps with the second coil unit (1032) in the third direction and a second portion that does not overlap with the second coil unit (1032) in the third direction. In the sixth section (F_stage 6), the area of ​​the second portion of the second magnet portion (1062) is larger than the area of ​​the first portion of the second magnet portion (1062). For example, in the sixth section (F_stage 6), the area of ​​the second portion of the second magnet portion (1062) may be more than twice the area of ​​the first portion of the second magnet portion (1062).

[0364] In the sixth section (F_stage 6), the second driving signal may not be supplied to the second coil unit (1032), and the second driving signal may be supplied to the first coil unit (1032). The current direction of the first driving signal supplied in the sixth section (F_stage 6) may be a direction that moves the first magnet (1130A) forward.

[0365] The description of FIGS. 18A to 20B can be applied or analogized to the second magnet (1130B), the second coil (1120B), and the second position sensor (1072). The length of the stroke section of the zoom lens assembly (1622) and the length of the stroke section of the AF lens unit (624) may be different from each other, and thus the length (or size) of the coil unit (1031, 1032) of the first coil (1120A) may be different from the length (or size) of the coil unit (1041, 1042) of the second coil (1120B), and the length (or size) of the first magnet (1130A) may be different from the length (or size) of the second magnet (1130B). However, the relationship between the length or size, etc., between the first magnet (1130A) and the first coil (1120A) described in FIGS. 18A to 20B and the description of the first position sensor (1071) can be equally applied or analogically applied to the second magnet (1130B), the second coil (1120B), and the second position sensor (1072).

[0366] According to the structure and arrangement of the first magnet (1130A) and the first coil (1120A) according to FIGS. 18A and 18B, the embodiment can increase the driving range or stroke range. That is, the embodiment can increase the stroke range of the lens assembly (1622) for the zooming operation, thereby securing a high-magnification zoom function. In addition, the embodiment can increase the stroke range of the lens assembly (1624) for the focusing operation, thereby securing the accuracy and reliability of the autofocus operation.

[0367] As the overlapping area between the magnet parts (1061, 1062, 1063) of the first magnet (1130A) and the winding parts (3A to 3F) of the coil units (1031, 1032) in the third direction increases, the driving force (or electromagnetic force) generated to move the lens assembly (1622) can increase. Conversely, when the overlapping area between the magnet parts (1061, 1062, 1063) and the winding parts (3A to 3F) of the coil units (1031, 1032) is small, or when the overlapping area between the partition walls (1060A, 1060B) and the winding parts (3A to 3F) is large, the driving force (or electromagnetic force) generated to move the lens assembly (1622) is small.

[0368] Referring to FIGS. 19A and 20B, when the first magnet (1130A) is moved in the first direction, in a section where the area of ​​overlap between a coil unit and the magnet sections (1061, 1062, 1063) is small or the area of ​​overlap between the partition walls (1060A, 1060B) is large, a driving signal may not be supplied to the coil unit, and thus, the electromagnetic force (or driving force) may be slightly reduced, but the current consumption or power consumption required for the zoom or focus operation may be significantly reduced.

[0369] That is, in the embodiment, by selectively supplying a driving signal to the first coil unit (1031) and the second coil unit (1032) of the first coil (1120A), the current consumption or power consumption required during the zoom operation can be reduced. For example, in the sections (R_stage 1, R_stage 2, R_stage 4, R_stage 6) of FIGS. 19a and 19b, the driving signal is supplied to only one of the first and second coil units (1031, 1032), so the current consumption or power consumption required during the zoom operation can be reduced. In addition, in the sections (F_stage 1, F_stage 2, F_stage 4, F_stage 6) of FIGS. 20a and 20b, the driving signal is supplied to only one of the first and second coil units (1031, 1032), so the current consumption or power consumption required during the focus operation can be reduced.

[0370] In addition, in the embodiment, by reducing the current consumption and power consumption, it is possible to prevent high heat generated due to the coil units (1031, 1032), and to prevent errors in zoom operation or focus operation due to high heat.

[0371] Fig. 21 shows the stroke range of the lens unit by the drive coil (1053) and the drive magnet (1430) according to a comparative example. The lens unit of Fig. 21 may be for zoom operation or focus operation.

[0372] Referring to Fig. 21, the driving magnet (1430) of the comparative example may be a four-pole magnet. The driving magnet (1430) may include a first magnet portion (1007A) having an N pole and an S pole, a second magnet portion (1007B) having an S pole and an N pole, and a partition wall (1007C) disposed between the first magnet portion (1007A) and the second magnet portion (1007B). The driving coil (1053) may include a first coil unit (1053A) and a second coil unit (1053B) disposed to be spaced apart from each other in the first direction.

[0373] In the comparative example, since the driving force decreases as the second magnet portion (1007B) approaches the portion (1003F) of the second coil unit (1053B), the range of movement of the driving magnet (1430) may be limited to avoid the reduction in driving force. On the other hand, in the embodiments of FIGS. 19A and 19B, since the first magnet (1130A) includes three magnet portions, the reduction in driving force as in the comparative example may not occur, and thus the stroke range (Position 1 to Position 2) of the first magnet (1130A) (or lens assembly (1622)) of the embodiment may be greater than the stroke range (SR) of the comparative example.

[0374] The actuator (1100) may include a control unit (1830). The control unit (1830) may be disposed on a circuit board (1190) and may be electrically connected to the circuit board (1190). The control unit (1830) may be a driver IC. The control unit (1830) may be electrically connected to at least one of the position sensors (1071, 1072) and the coil (1120).

[0375] For example, the control unit (1830) can receive the output of the position sensor (1071, 1072) and supply a driving signal to the first coil (1120A) and the second coil (1120B). The control unit (1830) can receive the output signal of the position sensor (1071, 1072), convert the received output signal into analog-to-digital, and generate a digital value (or code value).

[0376] The control unit (1830) can store reference code values ​​(Code 1 to Code 6) corresponding to displacements of the lens assembly (1622) within the stroke range of FIGS. 19A and 19B. In addition, the control unit (1830) can store reference code values ​​(Code 11 to Code 16) corresponding to displacements in the first direction of the lens assembly (1622) within the stroke range of FIGS. 20A and 20B.

[0377] For example, using the code value of the output signal of the first position sensor (1071), the control unit (1830) can adjust the driving signal supplied to the first coil unit (1031) and the second coil unit (1032).

[0378] For example, when the code value of the output signal of the first position sensor (1071) becomes the second code value (Code2), the first magnet (1130A) can be positioned in the second section (R_stage 2) of FIG. 19A, and the control unit (1830) can control the first and second driving signals as described in the second section. That is, the control unit (1830) can determine which section of FIG. 19A, FIG. 19B, FIG. 20A, and FIG. 20B the position of the first magnet (1130A) corresponds to by using the code value of the output signal of the first position sensor (1071), and can control the first and second driving signals as described in FIG. 19A, FIG. 19B, FIG. 20A, and FIG. 20B based on the determination result.

[0379] Fig. 22 is a schematic drawing of a camera device (1200) according to an embodiment.

[0380] Referring to FIG. 22, the camera device (1200) may include an actuator (1100) and an image sensor (1810).

[0381] The image sensor (1810) can receive and detect light passing through the lens unit (1620) and convert the detected light into an electrical signal. For example, the image sensor (1810) can include an imaging area for detecting light. Here, the imaging area can be expressed as an effective area, a light-receiving area, or an active area. For example, the imaging area can include a plurality of pixels on which an image is formed.

[0382] The image sensor (1810) may be positioned at the rear of the lens assembly (1624). For example, the image sensor (1810) may be positioned to face the third lens array (1059) of the lens assembly (1624) in the first direction.

[0383] The camera device (1200) may further include a filter (1560) disposed between the image sensor (1810) and the lens unit (1620) and facing the image sensor in a first direction.

[0384] The filter (1560) may block light of a specific frequency band from passing through the lens unit (1620) from entering the image sensor (1810). For example, the filter (1560) may be an infrared blocking filter, but is not limited thereto. For example, the filter (1560) may be arranged parallel to an xy-plane perpendicular to the first direction.

[0385] The camera device (1200) may further include a circuit board (1800) on which an image sensor (1810) is arranged or mounted. The image sensor (1810) may be electrically connected to the circuit board (1800).

[0386] The camera device (1200) may further include an actuator (1310) for driving OIS.

[0387] The actuator (1310) may be positioned at the rear of the actuator (1100). The actuator (1310) may change the path of light. For example, the actuator (1310) may include an optical member that changes the path of light. The optical member may include a reflector that may change the direction in which light travels. For example, the optical member may be a prism that reflects light, but is not limited thereto, and in other embodiments, may be a mirror. The optical member may change the optical path of incident light into an optical axis parallel to the central axis (Z) of the lens unit (1620), thereby changing the incident light into parallel light, and the parallel light may pass through the lens assembly (1640), the lens assembly (1622), and the lens assembly (1624) to reach the image sensor (1810).

[0388] For example, the actuator (1310) can move the optical member, thereby performing an OIS (Optical Image Stabilizer) operation to correct for hand shake. For example, the actuator (1310) can rotate the optical member around the X-axis or around the Y-axis, and move an image formed on the image sensor (1810) in the X-axis direction or the Y-axis direction. The actuator (1310) can include a coil and a magnet for moving the optical member.

[0389] In addition, the camera device (200) according to the embodiment may be included in an optical instrument that forms an image of an object in space by using the characteristics of light such as reflection, refraction, absorption, interference, and diffraction, and aims to increase the visual acuity of the eye, or to record and reproduce an image using a lens, or to optically measure, propagate or transmit an image, etc. For example, the optical instrument according to the embodiment may be a mobile phone, a cell phone, a smart phone, a portable smart device, a portable terminal, a digital camera, a laptop computer, a digital broadcasting terminal, a PDA (Personal Digital Assistants), a PMP (Portable Multimedia Player), a navigation system, etc., but is not limited thereto, and any device for taking a video or a photo may be used.

[0390] Fig. 23 shows a perspective view of an optical device (200A) according to an embodiment, and Fig. 24 shows a configuration diagram of the optical device (200A) shown in Fig. 23.

[0391] Referring to FIGS. 23 and 24, the optical device (200A) may include a body (850), a wireless communication unit (710), an A / V input unit (720), a sensing unit (740), an input / output unit (750), a memory unit (760), an interface unit (770), a control unit (780), and a power supply unit (790).

[0392] The body (850) is in the form of a bar, but is not limited thereto, and may have various structures such as a slide type, folder type, swing type, or swivel type in which two or more sub-bodies are connected to enable relative movement.

[0393] The body (850) may include a case (casing, housing, cover, etc.) that forms the exterior. For example, the body (850) may be divided into a front case (851) and a rear case (852). Various electronic components of the terminal may be built into the space formed between the front case (851) and the rear case (852).

[0394] The wireless communication unit (710) may be configured to include one or more modules that enable wireless communication between the terminal (200A) and a wireless communication system or between the terminal (200A) and a network in which the terminal (200A) is located. For example, the wireless communication unit (710) may be configured to include a broadcast reception module (711), a mobile communication module (712), a wireless Internet module (713), a short-range communication module (714), and a location information module (715).

[0395] The A / V (Audio / Video) input unit (720) is for inputting audio signals or video signals and may include a camera (721) and a microphone (722), etc. The camera (721) may include a camera device (200, 1200) according to an embodiment.

[0396] The sensing unit (740) can detect the current state of the terminal (200A), such as the open / close state of the terminal (200A), the position of the terminal (200A), the presence or absence of user contact, the orientation of the terminal (200A), and the acceleration / deceleration of the terminal (200A), and generate a sensing signal to control the operation of the terminal (200A). For example, if the terminal (200A) is in the form of a slide phone, it can sense whether the slide phone is opened or closed. In addition, it is responsible for sensing functions related to whether power is supplied to the power supply unit (790), whether the interface unit (770) is connected to an external device, etc.

[0397] The input / output unit (750) is for generating input or output related to visual, auditory, or tactile senses. The input / output unit (750) can generate input data for controlling the operation of the terminal (200A) and can also display information processed in the terminal (200A).

[0398] The input / output unit (750) may include a key pad unit (730), a display module (751), an audio output module (752), and a touch screen panel (753). The key pad unit (730) may generate input data through key pad input.

[0399] The display module (751) may include a plurality of pixels whose colors change according to an electrical signal. For example, the display module (751) may include at least one of a liquid crystal display, a thin film transistor-liquid crystal display, an organic light-emitting diode, a flexible display, and a 3D display.

[0400] The audio output module (752) can output audio data received from the wireless communication unit (710) in a call signal reception mode, call mode, recording mode, voice recognition mode, or broadcast reception mode, or can output audio data stored in the memory unit (760).

[0401] The touch screen panel (753) can convert a change in electrostatic capacity caused by a user's touch on a specific area of ​​the touch screen into an electrical input signal.

[0402] The memory unit (760) may store programs for processing and controlling the control unit (780), and may temporarily store input / output data (e.g., phone book, messages, audio, still images, photographs, videos, etc.). For example, the memory unit (760) may store images captured by the camera (721), such as photographs or videos.

[0403] The interface unit (770) serves as a passage connecting to an external device connected to the terminal (200A). The interface unit (770) receives data from the external device, supplies power and transmits it to each component inside the terminal (200A), or allows data inside the terminal (200A) to be transmitted to the external device. For example, the interface unit (770) may include a wired / wireless headset port, an external charger port, a wired / wireless data port, a memory card port, a port for connecting a device equipped with an identification module, an audio I / O (Input / Output) port, a video I / O (Input / Output) port, and an earphone port.

[0404] The control unit (controller, 780) can control the overall operation of the terminal (200A). For example, the control unit (780) can perform related control and processing for voice calls, data communications, video calls, etc. The control unit (780) can be equipped with a multimedia module (781) for multimedia playback. The multimedia module (781) can be implemented within the control unit (780) or can be implemented separately from the control unit (780). The control unit (780) can perform pattern recognition processing to recognize handwriting input or drawing input performed on the touch screen as characters and images, respectively.

[0405] The power supply unit (790) can supply power required for the operation of each component by receiving external power or internal power under the control of the control unit (780).

[0406] The features, structures, effects, etc. described in the embodiments above are included in at least one embodiment of the present invention, and are not necessarily limited to just one embodiment. Furthermore, the features, structures, effects, etc. exemplified in each embodiment can be combined or modified in other embodiments by those skilled in the art to which the embodiments pertain. Therefore, the contents related to such combinations and modifications should be construed as being included within the scope of the present invention.

[0407] The embodiment can be used in an actuator that can increase an electromagnetic force by interaction between a coil and a magnet unit for moving a lens unit, and a camera device including the same.

Claims

1. Housing; A lens unit disposed within the housing; A magnet placed in the above lens section; a core disposed in the housing; and A coil is included that is wound around the core and moves the lens unit in the first direction by interacting with the magnet, An actuator having a body including a core portion disposed within the hollow of the coil and a first extension portion disposed between the coil and the magnet and extending in the first direction from the core portion.

2. In paragraph 1, An actuator in which the body of the core includes a second extension portion positioned opposite the first extension portion with respect to the core portion and extending in the first direction from the core portion.

3. In paragraph 1, An actuator in which the coil overlaps the first extension in a second direction perpendicular to the first direction.

4. In paragraph 2, The above core portion includes a plurality of core portions spaced apart from each other, The coil comprises a plurality of coil units arranged in the first direction, Each of the plurality of core parts is placed within a corresponding hollow portion of one of the plurality of coil units, The above first extension portion is an actuator extending from each of the plurality of core portions.

5. In paragraph 1, An actuator wherein the first extension portion includes a first region and a second region extending in opposite directions with respect to the core portion.

6. In paragraph 4, An actuator in which the core includes a gap formed in one area of ​​a first extension portion located between two adjacent core portions among the plurality of core portions.

7. In paragraph 4, An actuator wherein the core comprises a first connecting portion disposed between a first end of the first extension portion and a first end of the second extension portion, and a second connecting portion disposed between a second end of the first extension portion and a second end of the second extension portion.

8. In paragraph 4, The body of the above core comprises a plurality of plates stacked in a third direction, An actuator in which the third direction is perpendicular to the first direction and the second direction, the second direction is perpendicular to the first direction, and the coil and the magnet face each other.

9. In paragraph 8, An actuator wherein the core further comprises an insulating member disposed between a plurality of plates.

10. In paragraph 1, Including a cloud member disposed between the lens portion and the housing, An actuator in which a force acts between the first extension and the magnet.

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