Camera device and optical device comprising same

Abstract

A camera device according to an embodiment of the present invention comprises: a lens assembly including a fixed lens group and a movable lens group movable in a first axis direction; an image sensor that detects light passing through the fixed lens group and the movable lens group; an optical member that irradiates light to the lens assembly and is tiltable with respect to a second or third axis perpendicular to the first axis; and a control unit that stores a correction value for compensating for misalignment of an optical axis of the lens assembly corresponding to zoom magnification information for the movable lens group, wherein the control unit controls the tilt of the optical member on the basis of the compensation value, the zoom magnification for the moving lens group includes a minimum magnification, a maximum magnification, and an intermediate magnification between the minimum magnification and the maximum magnification, and the compensation value sets an initial position of the optical member on the basis of the intermediate magnification and relates to a tilt amount of the optical member for the minimum magnification and the maximum magnification.

Description

Camera device and optical device including same

[0001] The present invention relates to a camera device and an optical 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 auto focusing (AF) function, and / or a zooming function, which compensates for or prevents image shaking caused by the user's movements.

[0003] The technical problem to be solved by the present invention is to provide a camera device and an optical device including the same.

[0004] In order to solve the above technical problem, a camera device according to an embodiment of the present invention includes a lens assembly including a fixed lens group and a movable lens group movable in a first axis direction; an image sensor for detecting light passing through the fixed lens group and the movable lens group; an optical member that irradiates light to the lens assembly and is tiltable based on a second or third axis perpendicular to the first axis; and a control unit that stores a correction value for compensating for misalignment of an optical axis of the lens assembly corresponding to zoom magnification information for the movable lens group, wherein the control unit controls tilt of the optical member based on the correction value, and the zoom magnification for the movable lens group includes a minimum magnification, a maximum magnification, and an intermediate magnification between the minimum magnification and the maximum magnification, and the correction value sets an initial position of the optical member based on the intermediate magnification and relates to an amount of tilt of the optical member for the minimum magnification and the maximum magnification.

[0005] The above correction value may be related to the initial position of the optical member for correcting the misalignment between the center of the fixed lens group and the center of the first lens group.

[0006] The control unit can perform a zoom or auto focus operation by moving the lens assembly in the direction of the optical axis while controlling the tilt of the optical member using the correction value.

[0007] The control unit may include a first driver that controls movement of the first lens group; and a second driver that stores the correction value and controls tilt of the optical member using the correction value.

[0008] The tilt amount of the optical element for the lowest magnification and the tilt amount of the optical element for the highest magnification may be values ​​in different directions.

[0009] It may include a first position sensor that detects displacement of the optical member with respect to the second axis; and a second position sensor that detects displacement of the optical member with respect to the third axis.

[0010] The above control unit can perform a shake correction operation by controlling the tilt of the optical member using the above compensation value.

[0011] The above moving lens group may include a zoom lens group and a focus lens group.

[0012] In order to solve the above technical problem, a camera device according to an embodiment of the present invention includes a lens assembly including a fixed lens group and a movable lens group movable in a first axis direction; an image sensor for detecting light passing through the fixed lens group and the movable lens group; an optical member that irradiates light to the lens assembly and is tiltable based on a second or third axis perpendicular to the first axis; and a control unit that stores a correction value for compensating for misalignment of an optical axis of the lens assembly corresponding to zoom magnification information for the movable lens group, wherein the control unit controls tilt of the optical member based on the correction value, and the zoom magnification for the movable lens group includes a highest magnification and a lowest magnification, and the correction value can be generated by setting an initial position of the optical member based on a chart center that is located farthest from a chart center of a lowest magnification and a chart center of a highest magnification based on an image center that is a center of an image area of ​​the image sensor.

[0013] The control unit may tilt-correct the optical member in a first direction to compensate for misalignment of the optical axis of the lens assembly corresponding to the lowest magnification, and the control unit may tilt-correct the optical member in a second direction opposite to the first direction to compensate for misalignment of the optical axis of the lens assembly corresponding to the highest magnification.

[0014] The above correction value may be related to the initial position of the optical member for correcting the misalignment between the center of the fixed lens group and the center of the first lens group.

[0015] The control unit can perform a zoom or auto focus operation by moving the lens assembly in the direction of the optical axis while controlling the tilt of the optical member using the correction value.

[0016] The control unit may include a first driver that controls movement of the first lens group; and a second driver that stores the correction value and controls tilt of the optical member using the correction value.

[0017] It may include a first position sensor that detects displacement of the optical member with respect to the second axis; and a second position sensor that detects displacement of the optical member with respect to the third axis.

[0018] The above control unit can perform a shake correction operation by controlling the tilt of the optical member using the above compensation value.

[0019] According to the present embodiments, by adjusting the tilt of the optical member of the second actuator, the horizontal path of light irradiated to the lens assembly of the first actuator can be changed, thereby compensating for deviation (or tilt) of the optical center caused by misalignment of the lens assembly or lens.

[0020] The embodiment can prevent image distortion caused by tilt of the optical center because it can compensate for deviation (or tilt) of the optical center caused by misalignment of the lens assembly or lens.

[0021] The embodiment can prevent distortion of the image, thereby improving the resolution of the image sensor.

[0022] The embodiment can prevent collisions within the physical area where the optical element is tilted when correcting the deviation (or tilt) of the optical center, and can prevent malfunctions.

[0023] Figure 1 is a perspective view of a camera device according to an embodiment.

[0024] Figure 2 is an exploded perspective view of the camera device of Figure 1.

[0025] Fig. 3 is a cross-sectional view of the camera device in the AB direction of Fig. 1.

[0026] Fig. 4 is a perspective view of the second actuator illustrated in Fig. 1.

[0027] Figure 5 is an exploded perspective view of the second actuator.

[0028] Fig. 6a is a front perspective view of the holder of Fig. 5.

[0029] Figure 6b is a rear perspective view of the holder.

[0030] Figure 6c is a downward perspective view of the holder.

[0031] Figure 7 is an exploded perspective view of the holder, the mover plate, and the magnetic support.

[0032] Figure 8a is an exploded perspective view of the holder and magnetic support combined with the optical member, the mover plate and the OIS magnet.

[0033] Figure 8b is a perspective view of the assembly of the optical member, the mover plate, the OIS magnet, and the magnetic support.

[0034] Figure 9a is a first perspective view of the first housing.

[0035] Figure 9b is a second perspective view of the first housing.

[0036] Figure 9c is a perspective view of the first housing and the second magnetic body.

[0037] Figure 10a is a perspective view of the first housing, holder, optical member, first circuit board, and cover plate.

[0038] FIG. 10b is a drawing for explaining the electromagnetic force and the movement of the mover plate according to the interaction between the first to third OIS magnets and the first to third coil units.

[0039] Fig. 11a is a cross-sectional view of the second actuator in the CD direction of Fig. 4.

[0040] Fig. 11b is a cross-sectional view of the second actuator in the EF direction of Fig. 4.

[0041] Fig. 12 is a perspective view of a first actuator and an image sensing unit according to an embodiment.

[0042] Fig. 13a is a first separated perspective view of the first actuator and image sensing unit of Fig. 12.

[0043] Fig. 13b is a second separated perspective view of the first actuator and image sensing unit of Fig. 12.

[0044] Fig. 14a is a cross-sectional view taken along the lines a and b of the first actuator and image sensing unit of Fig. 12.

[0045] Fig. 14b is a cross-sectional view of the first actuator and image sensing unit of Fig. 12.

[0046] Figure 15 is an exploded perspective view of the first actuator.

[0047] Figure 16a is an exploded perspective view of the second housing.

[0048] Figure 16b is a perspective view of the body of the second housing.

[0049] Figure 17a is a first perspective view of the first and second guide sections and the lens section.

[0050] Figure 17b is a second perspective view of the first and second guide sections and the lens section.

[0051] Figure 18 is an exploded perspective view of the first and second magnets and the lens unit.

[0052] Fig. 19 shows a functional block diagram of a camera device according to an embodiment.

[0053] Fig. 20 is a flowchart showing a control method of a control unit for performing zooming and AF or image stabilization of a camera device according to an embodiment.

[0054] Figure 21 illustrates an embodiment of a method for generating a compensation value to compensate for deviation due to lens misalignment.

[0055] Figure 22 shows the correction of deviations due to misalignment of the lens assembly or lens and deviations due to movement of the OIS moving part.

[0056] Fig. 23 is a flowchart showing a control method of a control unit for performing zooming and AF or image stabilization of a camera device according to another embodiment.

[0057] Figure 24 is a drawing to explain matters to be considered when generating a correction value to compensate for deviation caused by lens misalignment.

[0058] Figures 25 and 26 are drawings for explaining the process of generating OC compensation and OC Shift correction values ​​considering the physical limitations of the OIS mechanic stroke.

[0059] FIG. 27 is a drawing for explaining a method for generating correction values ​​for OC compensation and OC Shift compensation described in FIGS. 25 and 26 and another method.

[0060] Figure 28 illustrates a method for generating a correction value to correct for deviation caused by lens misalignment corresponding to zoom ratio information.

[0061] FIG. 29 shows the amount of deviation or tilt corresponding to the sampling points obtained by the method according to the embodiment of FIG. 28.

[0062] Figure 30a shows an example of providing information and correction values ​​regarding zoom position and focus position.

[0063] Figure 30b shows another embodiment of providing information and correction values ​​regarding zoom position and focus position.

[0064] Figure 30c illustrates another embodiment of providing information and correction values ​​regarding zoom position and focus position.

[0065] FIG. 30d illustrates another embodiment of providing information and correction values ​​regarding zoom position and focus position.

[0066] Fig. 31 shows a perspective view of an optical device according to an embodiment.

[0067] Figure 32 shows a configuration diagram of the optical device illustrated in Figure 31.

[0068] Hereinafter, a preferred embodiment of the present invention will be described in detail with reference to the attached drawings.

[0069] However, the technical idea of ​​the present invention is not limited to some of the embodiments described, but can be implemented in various different forms, and within the scope of the technical idea of ​​the present invention, one or more of the components between the embodiments can be selectively combined or substituted for use.

[0070] In addition, terms (including technical and scientific terms) used in this embodiment may be interpreted as having a meaning that can be generally understood by a person of ordinary skill in the technical field to which this embodiment belongs, unless explicitly and specifically defined and described, and terms that are commonly used, such as terms defined in a dictionary, may be interpreted in consideration of the contextual meaning of the relevant technology.

[0071] Additionally, the terms used in this embodiment are for the purpose of describing the embodiments and are not intended to limit the present invention.

[0072] In this specification, the singular may also include the plural unless specifically stated otherwise in the phrase, and when it is described as “A and / or at least one (or more) of B, C”, it may include one or more of all combinations that can be combined with A, B, C.

[0073] Additionally, in describing the components of this embodiment, terms such as first, second, A, B, (a), (b), etc. may be used. These terms are only intended to distinguish the components from other components, and are not intended to limit the nature, order, or sequence of the components.

[0074] And, when a component is described as being 'connected', 'coupled', or 'connected' to another component, it may include not only cases where the component is 'connected', 'coupled', or 'connected' directly to the other component, but also cases where the component is 'connected', 'coupled', or 'connected' by another component between the component and the other component.

[0075] Additionally, when described as being formed or arranged "above" or "below" each component, "above" or "below" includes not only cases where the two components are in direct contact with each other, but also cases where one or more other components are formed or arranged between the two components. Furthermore, when expressed as "above" or "below," the meaning may include not only the upward direction but also the downward direction based on one component.

[0076] 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 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. In addition, the Z-axis direction, which is the optical axis (OA) direction, may be referred to as a 'first direction', the X-axis direction may be referred to as a 'second direction', and the Y-axis direction may be referred to as a 'third direction'. In addition, the Y-axis may be referred to as a "first axis", the Y-axis direction may be referred to as a "first-axis direction", the X-axis may be referred to as a "second-axis direction", and the X-axis direction may be referred to as a "second-axis direction".

[0077] Additionally, the expression “terminal” below may be replaced with pad, electrode, or conductive layer.

[0078] Additionally, the “code value” below may be expressed by replacing it with data or a digital value.

[0079] In addition, in the embodiment, in the coupling between the protrusion and the hole for coupling two components to each other, one of the components may be a coupling protrusion (or coupling hole), and the other side may be a corresponding coupling hole (or coupling protrusion).

[0080] A camera device according to an embodiment may perform a shake correction function, an auto-focusing function, and a zoom function. The 'shake correction function' may be a function that moves a lens in a direction perpendicular to the optical axis direction or tilts the lens with respect to the optical axis to offset vibration (or movement) caused by the user's hand shaking. In addition, the 'auto-focusing function' may be a function that automatically focuses on a subject by moving the lens in the optical axis direction according to the distance of the subject to obtain a clear image of the subject on the image sensor. The 'zoom function' may be a zooming function that takes a picture by increasing or decreasing the magnification of a distant subject through a zoom lens for changing the zoom magnification.

[0081] Hereinafter, “camera device” may be replaced with “camera”, “camera module”, “camera camera” or “camera”.

[0082] FIG. 1 is a perspective view of a camera device (200) according to an embodiment, FIG. 2 is an exploded perspective view of the camera device (200) of FIG. 1, and FIG. 3 is a cross-sectional view of the camera device in the AB direction of FIG. 1.

[0083] Referring to FIGS. 1 to 3, the camera device (200) may include a first actuator (310), a second actuator (320), and an image sensing unit (330).

[0084] The second actuator (320) can move the optical member (40), thereby performing an OIS (Optical Image Stabilizer) operation for performing shake correction, and may be expressed as a “second driving unit” or an “OIS driving unit”.

[0085] The second actuator (320) can change the path of light. For example, the second actuator (320) may include an optical member (40) that changes the path of light. The second actuator (320) may also be expressed as a replacement for an optical path changing unit.

[0086] The first actuator (310) can move the lens assemblies (622, 624) 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.” The first actuator (310) may be expressed as a “second actuator,” and the second actuator (320) may be expressed as a “first actuator.”

[0087] For example, the first actuator (310) may be placed at the rear end of the second actuator (320) and may be coupled with the second actuator (320).

[0088] The image sensing unit (330) can receive and detect light passing through the optical member (40) of the second actuator (320) and the lens assemblies (640, 622, 624) of the first actuator (310) and convert the detected light into an electrical signal.

[0089] The camera device (200) may further include a cover member (300). The cover member (300) may be in the shape of a box having an open bottom and including a top plate (301) and a side plate (302). The cover member (300) may accommodate the first actuator (310), the second actuator (320), and the image sensing unit (330) of the camera device (200).

[0090] An opening (303) or hole exposing the incident surface of the optical member (40) may be formed in the upper plate (301) of the cover member (300).

[0091] Additionally, the camera device (200) may further include a bracket for accommodating the first actuator (310), the second actuator (320), and the image sensing unit (330). The bracket may have a hole or a through hole for accommodating the first actuator (310), the second actuator (320), and the image sensing unit (330). At least one opening may be formed on a side or lateral surface of the bracket.

[0092] The side plate (302) of the cover member (300) may be formed with at least one protrusion (304) that engages with at least one opening of the bracket. The at least one protrusion (304) may protrude from the side plate (302) in a direction perpendicular to the optical axis (e.g., in the Y-axis direction).

[0093] The cover member (300) may be formed of a metal plate, but is not limited thereto, and may be formed of a plastic or resin material. In addition, the cover member (300) may be formed of a material that blocks electromagnetic waves.

[0094] The camera device (200) may be disposed on the upper plate (301) of the cover member (300) and may further include a protective film (24) covering the opening (303) of the cover member (300). The protective film (24) may be formed of a light-transmitting material and may prevent foreign substances from entering the camera device (200) and protect the optical member (40) from impact, etc. In addition, the camera device (200) may further include a protective tape (25) disposed between the protective film (24) and the upper plate (301) and used to attach the protective film (24) to the upper plate (301).

[0095] FIG. 4 is a perspective view of the second actuator (320) shown in FIG. 1, FIG. 5 is an exploded perspective view of the second actuator (320), FIG. 6a is a front perspective view of the holder (30) of FIG. 5, FIG. 6b is a rear perspective view of the holder (30), FIG. 6c is a bottom perspective view of the holder (30), FIG. 7 is an exploded perspective view of the holder (30), the mover plate (61), and the magnetic support (64), FIG. 8a is an exploded perspective view of the holder (30) and the magnetic support (64) in which the optical member (40), the mover plate (61), and the OIS magnet (31) are combined, FIG. 8b is a combined perspective view of the optical member (40), the mover plate (61), the OIS magnet (31), and the magnetic support (64), and FIG. 9a is a first FIG. 9 is a first perspective view of a housing (50), FIG. 9b is a second perspective view of the first housing (50), FIG. 9c is an exploded perspective view of the first housing (50) and the second magnetic body (63), FIG. 10a is a perspective view of the first housing (50), the holder (30), the optical member (40), the first circuit board (250A), and the cover plate (50A), FIG. 10b is a drawing for explaining the electromagnetic force and the movement of the mover plate according to the interaction between the first to third OIS magnets (31A, 31B, 32) and the first to third coil units (230A to 230C), FIG. 11a is a cross-sectional view of the second actuator (320) in the CD direction of FIG. 4, and FIG. 11b is a cross-sectional view of the second actuator (320) in the EF direction of FIG. 4.

[0096] Referring to FIGS. 4 to 11B, the second actuator (320) may include an optical member (40) that changes the path of light so that light passes through the opening (303) of the cover member (300) and is incident on the first actuator (310), and a second driving unit (70) that rotates the optical member (40) by a preset angle in a direction perpendicular to the optical axis direction (e.g., the Z-axis direction) (e.g., the X-axis direction or the Y-axis direction).

[0097] The optical member (40) may include a reflector capable of changing the direction in which light travels. For example, the optical member (40) may be a prism that reflects light, but is not limited thereto, and in other embodiments, may be a mirror.

[0098] The optical member (40) can change the optical path of incident light into an optical axis parallel to the central axis (Z) of the lens portion, thereby changing the incident light into parallel light, and the parallel light can pass through the first lens assembly (640), the second lens assembly (622), and the third lens assembly (624) to reach the image sensor (540).

[0099] For example, the optical member (40) may include an incident surface (8A) and an exit surface (8B), and may reflect light incident on the incident surface (8A) and emit it through the exit surface (8B). For example, the optical member (40) may be a right-angled prism including an incident surface (8A), a reflective surface (8C), and an exit surface (8B). For example, the interior angle between the incident surface (8A) and the exit surface (8B) may be a right angle.

[0100] Also, for example, the first internal angle between the incident surface (8A) and the reflective surface (8C) and the second internal angle between the exit surface (8B) and the reflective surface (8C) may each be 30 to 60 degrees. For example, the first internal angle and the second internal angle may each be 45 degrees, but are not limited thereto. In addition, due to the change in the optical path by the optical member (40), the thickness of the camera device (200) in the direction perpendicular to the incident surface (8A) of the optical member (40) can be reduced, and thus the thickness of the mobile device or terminal (200A) on which the camera device (200) is mounted can be reduced.

[0101] For example, the second actuator (320) may include a first housing (50), a holder (30) disposed within the first housing (50), an optical member (40) disposed within the holder (30), a support member (60) disposed between the holder (30) and the housing (50), and a second driving member (70).

[0102] Referring to FIGS. 5 and 6A to 6C, the holder (30) may include a mounting portion (104) for placing or mounting an optical member (40). The mounting portion (104) may be in the form of a groove and may have a mounting surface (104a) (or mounting surface) for placing a reflective surface (8C) of the optical member (40). For example, the mounting surface (104a) may be an inclined surface inclined with respect to the optical axis direction.

[0103] For example, an adhesive for attaching an optical member (40) to a mounting surface (104a) of a holder (30) may be placed, and at least one groove (104b) for receiving the adhesive may be formed in the mounting surface (104a).

[0104] For example, the holder (30) may include a first opening exposing an incident surface (8A) of the optical member (40) and a second opening exposing an exit surface (8B) of the optical member (40). For example, the first opening may be disposed on an upper side of the holder (30), and the second opening may be disposed on a side (front outer surface, 31a) of the holder (30) facing a lens assembly (e.g., 640) of the first actuator (310). The exit surface (8B) of the optical member (40) mounted on the holder (30) may be disposed to face the lens assembly (e.g., 640) of the first actuator (310).

[0105] The upper surface (18) of the holder (30) may include a first surface (18A) and a second surface (18B) having a step in a second direction (e.g., X-axis direction) from the first surface (18A). The first surface (18A) may be positioned adjacent to or in contact with the rear outer surface (31b) of the holder (30), and the second surface (18B) may be positioned adjacent to or in contact with the front outer surface (31a) of the holder (30). The second surface (18B) may be positioned lower than the first surface (18A). For example, the second surface (18B) may be positioned closer to the lower surface (19) of the holder (30) than the first surface (18A).

[0106] Since the second surface (18B) has a step with the first surface (18A), when the holder (30) tilts or rotates by a preset angle in the second direction (e.g., in the X-axis direction), spatial interference between the holder (30) and the first housing (50) can be prevented.

[0107] For example, at least one stopper (38) may be formed on the upper surface (e.g., the second surface (18B)) of the holder (30). The stopper (38) may be a projection or a protrusion protruding upward from the upper surface (e.g., the second surface (18B)) of the holder (30). For example, the stopper (38) may be formed on the upper surface of each of the first and second sides of the holder (30). The tilt or rotation of the holder (30) in the second direction may be restricted by the stopper (38). For example, the height of the upper surface of the stopper (38) may be lower than or equal to the height of the first surface (18A).

[0108] The holder (30) may include first and second side portions (or outer surfaces) (31c, 31d) that face each other. For example, the mounting portion (104) may be positioned between the first side portion (31c) and the second side portion (31d) of the holder (30). For example, the first side portion (31c) and the second side portion (31d) may be positioned opposite or facing each other in a third direction (e.g., the Y-axis direction).

[0109] Each of the first and second sides (31c, 31d) of the holder (30) may include a first outer side surface (19A) and a second outer side surface (19B) having a step in a third direction (e.g., Y-axis direction) from the first outer side surface (19A). The first outer side surface (19A) may be positioned adjacent to or in contact with the rear outer side surface (31b) of the holder (30), and the second outer side surface (19B) may be positioned adjacent to or in contact with the front outer side surface (31a) of the holder (30). The second outer side surface (19B) may be positioned closer to the inner side surface of the holder (30) than the first outer side surface (19A).

[0110] Since the second outer surface (19B) of the holder (30) has a step with the first outer surface (19A), when the holder (30) tilts or rotates by a preset angle in the third direction (e.g., the Y-axis direction), spatial interference between the holder (30) and the first housing (50) can be prevented.

[0111] For example, at least one stopper (39A) may be formed on the first and second sides (e.g., the second outer surface (19B)) of the holder (30). The stopper (39A) may be a projection or a protrusion protruding from the outer surface (e.g., the second outer surface (19B)) of each of the first and second sides (31c, 31d) of the holder (30). The tilt or rotation of the holder (30) in the third direction may be restricted by the stopper (39A). For example, the protruding height of the stopper (39A) with respect to the second outer surface (19B) may be smaller than or equal to the step difference between the first outer surface (19A) and the second outer surface (19B).

[0112] The lower surface (17) of the holder (30) may include a first surface (17A) and a second surface (17B) having a step in a second direction (e.g., X-axis direction) from the first surface (17A). The first surface (17A) may be positioned adjacent to or in contact with a front outer surface (31a) of the holder (30), and the second surface (17B) may be positioned adjacent to or in contact with a rear outer surface (31b) of the holder (30). The first surface (17A) may be positioned lower than the second surface (17B). For example, the second surface (17B) may be positioned closer to the upper surface (18) of the holder (30) than the first surface (17A).

[0113] Since the second surface (17B) of the lower surface (17) of the holder (30) has a step with the first surface (17A), when the holder (30) tilts or rotates by a preset angle in the second direction (e.g., in the X-axis direction), spatial interference between the holder (30) and the second OIS coil (230C) can be prevented.

[0114] For example, at least one stopper (41) may be formed on the lower surface (e.g., the second surface (17B)) of the holder (30). The stopper (41) may be a projection or a protrusion protruding downward from the lower surface (e.g., the second surface (17B)) of the holder (30). The tilt or rotation of the holder (30) in the second direction may be limited by the stopper (41). For example, the protruding length of the stopper (38) with respect to the second surface (17B) may be smaller than or equal to the step difference between the first surface (17A) and the second surface (17B) of the lower surface (17) of the holder (30).

[0115] The holder (30) may include a first mounting groove (16A) for placing or settling a first OIS magnet (31) and a second mounting groove (16B) for placing or settling a second OIS magnet (32).

[0116] For example, the first settling groove (16A) may be formed on the outer surface (e.g., the first outer surface (19A)) of each of the first and side portions (31c, 31d) of the holder (30). For example, the first settling groove (16A) may be in the form of a recessed groove from the first outer surface (19A) of each of the first and side portions (31c, 31d) of the holder (30).

[0117] For example, the second mounting groove (16B) may be formed on the lower surface (17) (e.g., the second surface (16B)) of the holder (30). For example, the second mounting groove (16B) may be in the form of a groove sunken from the lower surface (17) (e.g., the second surface (16B)) of the holder (30).

[0118] Referring to FIG. 6b, the rear outer surface (31b) of the holder (30) may include a first surface (21a), a second surface (21b) adjacent to or in contact with the first side (31c), and a third surface (21c) adjacent to or in contact with the second side (31d).

[0119] When viewed from the rear, the first side (21a) can be placed in the center, the second side (21b) can be placed on the left side of the first side (21a), and the third side (21c) can be placed on the right side of the first side (21a).

[0120] Each of the second surface (21b) and the third surface (21c) may have a step with respect to the first surface (21a) in the first direction (e.g., the Z-axis direction). For example, the first surface (21a) may be positioned closer to the inner surface of the holder (30) than each of the second surface (21b) and the third surface (21c). For example, the second surface (21b) and the third surface (21c) may be positioned on the same plane. Alternatively, for example, the step between the first surface (21a) and the second surface (21b) may be the same as the step between the first surface (21a) and the third surface (21c), but is not limited thereto, and in other embodiments, the two may be different from each other.

[0121] For example, a groove (106) for settling or receiving a mover plate (61) may be formed on the rear outer surface (31c) of the holder (30). For example, the groove (106) may be positioned at the center of the rear outer surface (31c) and may be recessed from the rear outer surface (31c).

[0122] The holder (30) may be formed on the first surface (21a) of the rear outer surface (31c) and may include at least two grooves (36A, 36B) corresponding to at least two front protrusions (61B1, 61B2) of the mover plate (61). For example, the at least two grooves (36A, 36B) of the holder (30) may be arranged spaced apart from each other in the second direction and may be formed on the bottom surface of the groove (106).

[0123] For example, the holder (30) may include a first groove (36A) formed on the first surface (21a) of the rear outer surface (31c) and a second groove (36B) spaced apart from the first groove (36A) and positioned above the first groove (36A). In another embodiment, the first groove may be positioned above the second groove.

[0124] The first groove (36A) may include a bottom surface and multiple side surfaces. Each of the multiple side surfaces of the first groove (36A) may have the same shape. In FIG. 6b, the number of side surfaces of the first groove (36A) is four, but this is not limited to this, and in other embodiments, the number may be five or more.

[0125] For example, the areas of the multiple side surfaces of the first groove (36A) may be identical to each other. The multiple side surfaces of the first groove (36A) may be symmetrical to each other in the second and third directions. For example, the bottom surface of the first groove (36A) may be square or circular, but is not limited thereto.

[0126] For example, the second groove (36B) may include a bottom surface and a plurality of side surfaces (1A to 1D). The area of ​​at least one of the plurality of side surfaces (1A to 1D) of the second groove (36B) may be different from the area of ​​at least another of the plurality of side surfaces (1A to 1D) of the second groove (36B).

[0127] For example, two side surfaces (1C, 1D) of the second groove (36B) facing each other in the second direction may have a symmetrical shape, and the areas of the two side surfaces (1C, 1D) may be the same. In addition, two side surfaces (1A, 1B) of the second groove (36B) facing each other in the third direction may have a symmetrical shape, and the areas of the two side surfaces (1A, 1B) may be the same.

[0128] The first area of ​​each of the side surfaces (1C, 1D) of the second groove (36B) facing in the second direction may be different from the second area of ​​each of the side surfaces (1A, 1D) of the second groove (36B) facing in the third direction.

[0129] For example, the first area may be smaller than the second area. In other embodiments, the first area may be larger than the second area. For example, the bottom surface of the second groove (36B) may be rectangular or oval, but is not limited thereto.

[0130] If both the first and second grooves of the holder (30) have the shape of the first groove (36A) illustrated in FIG. 6B, a manufacturing tolerance may occur with respect to the first and second grooves of the holder (30) and / or the front protrusions of the mover plate (61), and as a result, the front protrusions of the mover plate (61) may not be properly or stably coupled to the first and second grooves of the holder (30).

[0131] In the embodiment, by making the shape of the second groove (36B) different from that of the first groove (36A), the coupling margin between the front protrusions (61B1, 61B2) of the mover plate (61) and the first and second grooves (36A, 36B) of the holder (30) can be increased. That is, even if the above-described manufacturing tolerance occurs, the front protrusions (61B1, 61B2) of the mover plate (61) can be suitably or stably coupled to the first and second grooves (36A, 36B) of the holder (30) by the second groove (36B), and stable OIS operation can be enabled.

[0132] A protrusion (22A) or a step may be formed around the first groove (36A) and the second groove (36B). The protrusion (22A) may be formed by protruding from the first surface (21a) of the rear outer surface (31c). A lubricant may be placed between the front projections (61B1, 61B2) and the first and second grooves (36A, 36B), and the protrusion (22A) may prevent the lubricant from overflowing.

[0133] At least one coupling groove (105A, 105B) for coupling with a magnetic support member (64) may be formed on the rear outer surface (31c) of the holder (30).

[0134] For example, the holder (30) may include a first coupling groove (105A) formed on the second surface (21b) of the rear outer surface (31c), and a second coupling groove (105B) formed on the third surface (21c).

[0135] For example, at least one protrusion (2A) (or groove) may be formed on at least one of the side surfaces and the bottom surface of each of the first and second coupling grooves (105A, 105B). For example, at least one protrusion (2A) may correspond to at least one groove (7B) of the magnetic support member (64) or may be formed at a position corresponding to at least one groove (7B).

[0136] At least one of the side and bottom surfaces of each of the first and second coupling grooves (105A, 105B) may be formed with grooves (4A) for placing adhesive. The grooves (4A) may increase the bonding area between the adhesive and the magnetic support (64), and may enhance the bonding strength between the holder (30) and the magnetic support (64).

[0137] The holder (30) may include at least one stopper (37) formed on the rear outer surface (31c). For example, the stopper (37) may be in the form of a protrusion or projection protruding from each of the second surface (21b) and the third surface (21c) of the rear outer surface (31c).

[0138] The first housing (50) may be placed within the cover member (300). For example, an adhesive or shield member may be placed between the first housing (50) and the cover member (300), and the first housing (50) may be coupled or fixed to the cover member (300). The holder (30) may be placed within the first housing (50). The first housing (50) may accommodate the holder (30) therein, and may expose the incident surface (8A) and the exit surface (8B) of the optical member (40) placed in the holder (30).

[0139] Referring to FIGS. 9A to 9C, for example, the first housing (50) may include a first opening (53A) (or first hole) for exposing the incident surface (8A) of the optical member (40) and a second opening (53B) (or second hole) for exposing the exit surface (8B) of the optical member (40).

[0140] The first housing (50) may include an upper portion (27A), a lower portion (27B), and a plurality of side portions (28A to 28D) disposed between the upper portion (27A) and the lower portion (27). The upper portion (27A) and the lower portion (27B) may face each other in a second direction (e.g., in the X-axis direction) or may be positioned opposite to each other.

[0141] For example, the first housing (50) may include a first side (28A), a second side (28B), a third side (28C), and a fourth side (28D).

[0142] For example, the first side (28A) of the first housing (50) may be positioned to face or be opposite the lens assembly (e.g., 640) of the first actuator (310). The first opening (53A) may be formed in the upper portion (27A), and the second opening (53B) may be formed in the first side (28A).

[0143] The second side (28B) may face the first side (28A) in the first direction or may be positioned opposite the first side (28A). The third side (28C) and the fourth side (28D) may be positioned between the first side (28A) and the second side (28D) and may face or be positioned opposite to each other in the third direction. For example, the third side (28C) may connect one end of the first side (28A) and one end of the second side (28B), and the fourth side (28D) may connect the other end of the first side (28A) and the other end of the second side (28B).

[0144] For example, the first housing (50) may include a first hole (54A) formed in the third side (28C) for mounting or arranging the first OIS coil unit (230A), a second hole (54B) formed in the fourth side for mounting or arranging the second OIS coil unit (230B), and a third hole (54C) formed in the lower part (27B) for mounting or arranging the third OIS coil unit (230C). For example, each of the first to third holes (54A to 54C) is in the form of a through hole, but is not limited thereto, and may be in the form of a groove in other embodiments.

[0145] Additionally, a groove (56) (or through hole) for placing or settling a second driver (260) may be formed in the third side (28C) (or fourth side (28D)) of the first housing (50). For example, the groove (56) may be formed spaced apart from the first hole (54A).

[0146] The first housing (50) may include at least one engaging protrusion (51) formed on at least one of the third side (28C) and the fourth side (28D). For example, the engaging protrusion (51) may protrude from the outer surface of each of the third side (28C) and the fourth side (28D). In addition, the first housing (50) may include at least one engaging protrusion (52A) formed on the first side (28A). For example, the engaging protrusion (52A) may protrude from the outer surface of the first side (28A).

[0147] Additionally, the first housing (50) may include at least one coupling protrusion (52B) formed on the lower portion (28B). For example, the coupling protrusion (52B) may be formed to protrude from the outer surface of the lower portion (28B).

[0148] A guide protrusion (59A, 59B) for guiding a first circuit board (250A) may be formed on at least one of the upper and lower portions of the third side portion (28C) of the first housing (50). In addition, a guide protrusion for guiding a second circuit board (250B) may be formed on at least one of the upper and lower portions of the fourth side portion (28D) of the first housing (50).

[0149] The second side (28B) of the first housing (50) may include at least two grooves (58A, 58B) corresponding to at least two rear projections (61C1, 61C2) of the mover plate (61). For example, the at least two grooves (58A, 58B) of the first housing (50) may be arranged spaced apart in the third direction.

[0150] A projection or step may also be formed around at least two of the grooves (58A, 58B), and a lubricant may be placed between the rear projections and the grooves (58A, 58B), and the description for the projection (22A) may be applied or mutatis mutandis.

[0151] For example, the first housing (50) may include a protrusion (57) protruding from the inner surface of the second side (28B) toward the first side (28A), and the protrusion (57) may be formed with a first groove (58A) and a second groove (58B) corresponding to, opposite to, or overlapping with the rear projections (61C1, 61C2) of the mover plate (61).

[0152] For example, the protrusion (57) may include a first portion (57A) protruding from the inner surface of the second side portion (28B) and a second portion (57B) connecting the first portion (57A) and the lower portion (27B) of the first housing (50).

[0153] The first groove (58A) and the second groove (58B) of the first housing (50) can be formed on the inner surface (or front surface) of the second portion (57B) of the protrusion (57).

[0154] Additionally, a groove (44A) for placing or settling a second magnetic body (63) may be formed on the rear surface of the protrusion (57).

[0155] The description of the shape of the first and second grooves (36A, 36B) of the holder (30) can be applied or applied to the first and second grooves (58A, 58B) of the first housing (50).

[0156] In the embodiment, by making the shape of the second groove (58B) of the first housing (50) different from the shape of the first groove (58A), the coupling margin between the rear protrusions (61C1, 61C2) of the mover plate (61) and the first and second grooves (58A, 58B) of the first housing (50) can be increased. That is, even if a manufacturing tolerance occurs between the rear protrusions of the mover plate (61) and the first and second grooves of the first housing, the rear protrusions (61C1, 61C2) of the mover plate (61) can be suitably or stably coupled to the first and second grooves (58A, 58B) of the first housing (50) by the second groove (58B), thereby enabling stable OIS operation.

[0157] In Fig. 9b, when the first housing (50) is viewed from the front, the first groove (58A) is located on the left side and the second groove (58B) is located on the right side, but this is not limited to this, and in other embodiments, the first groove (58A) may be located on the right side and the second groove (58B) may be located on the left side.

[0158] For example, an opening (55) for arranging a magnetic support member (64) may be formed in the second side (28B) of the first housing (50).

[0159] Additionally, at least one through hole may be formed in the second side (28B) of the first housing (50). For example, a first through hole (55A) and a second through hole (55B) may be formed in the second side (28B) of the first housing (50).

[0160] As shown in Fig. 9c, when viewed from the rear of the first housing (50), the first through hole (55A) may be located on one side (e.g., the right side) of the protrusion (57) of the first housing (50), and the second through hole (55B) may be located on the other side (e.g., the left side) of the protrusion (57).

[0161] Next, the support (60) will be described.

[0162] The support member (60) is arranged between the holder (30) and the first housing (50) and can support the holder (30) with respect to the first housing (50).

[0163] The support member (60) may include a mover plate (61) disposed between the holder (30) and the first housing (50).

[0164] The mover plate (61) may include at least two front protrusions (61B1, 61B2) coupled with the holder (30) and at least two rear protrusions (61C1, 61C2) coupled with the first housing (50).

[0165] For example, at least two front protrusions (61B1, 61B2) may be arranged spaced apart in the second direction. Each of the front protrusions (61B1, 61B2) may be arranged in a corresponding one of the first and second grooves (36A, 36B) of the holder (30).

[0166] For example, at least two rear protrusions (61C1, 61C2) may be arranged spaced apart in a third direction. Each of the rear protrusions (61C1, 61C2) may be arranged in a corresponding one of the first and second grooves (58A, 58B) of the first housing (50).

[0167] For example, the mover plate (61) may include a body (61A) disposed within a groove (106) of a holder (30), front protrusions (61B1, 61B2) protruding from the front of the body (61A), and rear protrusions (61C1, 61C2) protruding from the rear of the body (61A). For example, the front protrusions (61B1, 61B2) and the rear protrusions (61C1, 61C2) may protrude in opposite directions.

[0168] For example, each of the front protrusions (61B1, 61B2) may have a curved shape, a hemispherical shape, a dome shape, or a polyhedral shape, but is not limited thereto. Also, for example, each of the rear protrusions (61C1, 61C2) may have a curved shape, a hemispherical shape, a dome shape, or a polyhedral shape, but is not limited thereto.

[0169] In other embodiments, instead of the front projections, the front surface of the mover plate may have front grooves formed, and instead of the rear projections, the rear surface of the mover plate may have rear grooves formed. Additionally, the holder may have projections formed for engaging with the front grooves of the mover plate instead of the first and second grooves (36A, 36B), and the first housing may have projections formed for engaging with the rear grooves of the mover plate instead of the first and second holes (58A, 58B).

[0170] For example, the mover plate (61) may be made of an injection-molded material such as plastic or resin. In another embodiment, the mover plate (61) may be made of a metal, for example, SUS material. In addition, the mover plate (61) may be a non-magnetic material. In another embodiment, the mover plate may be a magnetic material.

[0171] The support (60) may further include a first magnetic body (62) coupled to the holder (30) and a second magnetic body (63) coupled to the first housing (40).

[0172] The support (60) may further include a magnetic support (64) on which a first magnetic body (62) is arranged and which is coupled to the holder (30). For example, the magnetic support (64) may pass through at least a portion of the first housing (40) and be coupled to the holder (30).

[0173] Referring to FIGS. 7 to 10, the magnetic support member (64) may include a body (93) in which a first magnetic body (62) is placed, a first extension portion (94a) extending from one side of the body (93) and passing through a first through-hole (55A) of the first housing (50) and coupled to a first coupling groove (105A) of the holder (30), and a first extension portion (94b) extending from the other side of the body (93) and passing through a second through-hole (55B) of the first housing (50) and coupled to a second coupling groove (105B) of the holder (30).

[0174] A groove (64a) may be formed on the front surface of the body (93) of the magnetic support member (64) to allow the first magnetic body (62) to be seated or placed. For example, the first magnetic body (62) may be coupled to the groove (64a) of the magnetic support member (64) by an adhesive. In addition, for example, the extensions (94a, 94b) of the magnetic support member (64) may be coupled to the coupling grooves (105A, 105B) of the holder (30) by an adhesive.

[0175] The second magnetic body (63) may be placed on the second side (28B) of the first housing (50). For example, the second magnetic body (63) may be placed on the protrusion (57) of the first housing (50). For example, the second magnetic body (63) may be placed in the groove (44A) of the protrusion (57) of the first housing (50). For example, the second magnetic body (63) may be coupled to the groove (44a) of the first housing (50) by an adhesive.

[0176] Referring to FIGS. 11a and 11b, the first magnetic body (62) and the second magnetic body (63) may be arranged to face each other or overlap each other in the first direction.

[0177] The second magnetic body (63) may be placed between the first magnetic body (62) and the mover plate (61). In the embodiment, the mover plate (61) is not positioned between the first magnetic body (62) and the second magnetic body (63), and since both the first magnetic body (62) and the second magnetic body (64) are placed on one side of the mover plate (61) with respect to the mover plate (61), the separation distance between the first magnetic body (62) and the second magnetic body (63) can be reduced, and thus the magnetic force (e.g., repulsive force) between the first magnetic body (62) and the second magnetic body (63) can be increased.

[0178] The mover plate (61) can be pressed against the holder (30) and / or the first housing (50) by the repulsive force between the first and second magnetic bodies (62, 63), and can be brought into close contact with the holder (30) and / or the first housing (50). In the embodiment, since the magnetic force (e.g., repulsive force) between the first magnetic body (62) and the second magnetic body (63) is large, the mover plate (61) can stably support the holder (30), and thus, a stable OIS operation can be performed.

[0179] Referring to FIG. 11a, the length of the first magnetic body (62) in the second direction may be greater than the length of the second magnetic body (63) in the second direction. Also, referring to FIG. 11b, the length of the first magnetic body (62) in the third direction may be greater than the length of the second magnetic body (63) in the third direction. In other embodiments, the length of the first magnetic body (62) in the second direction may be equal to or less than the length of the second magnetic body (63) in the second direction, and the length of the first magnetic body (62) in the third direction may be equal to or less than the length of the second magnetic body (63) in the third direction.

[0180] For example, the area of ​​the first surface of the first magnetic body (62) facing the second magnetic body (63) may be larger than the area of ​​the first surface of the second magnetic body (63) facing the first magnetic body (62). In another embodiment, the area of ​​the first surface of the first magnetic body may be equal to or smaller than the area of ​​the first surface of the second magnetic body.

[0181] A repulsive force may be applied between the first magnetic body (62) and the second magnetic body (63). The first magnetic body (62) may include a first magnet, and the second magnetic body (63) may include a second magnet that exerts a repulsive force on the first magnet. In addition, for example, the first magnetic body (62) may further include a first yoke corresponding to the first magnet and disposed within a groove (64a). For example, the second magnetic body (63) may further include a second yoke corresponding to the second magnet and disposed within a groove (44A) of the first housing (50), and the first yoke and the second yoke may increase a magnetic force (e.g., a repulsive force) applied between the first magnetic body (62) and the second magnetic body (63).

[0182] For example, the facing surfaces of the first magnetic body (62) and the second magnetic body (63) may have the same polarity (N pole or S pole).

[0183] In another embodiment, an attractive force may be applied between the first and second magnetic bodies, in which case the facing surfaces of the first and second magnetic bodies may have opposite polarities.

[0184] Next, the second driving unit (70) will be described.

[0185] The second driving unit (70) tilts the holder (30) in the second or third direction or rotates it by a preset angle.

[0186] The second driving unit (70) may include an OIS magnet (31), an OIS coil (230), an OIS position sensor unit (240), and a first substrate unit (250).

[0187] The OIS magnet (31) can be placed in the holder (30). For example, the OIS magnet (31) can include a first OIS magnet (31A, 31B) and a second OIS magnet (32).

[0188] For example, the first OIS magnet may include a first magnet unit (31A) disposed on a first side (31c) of the holder (30) and a second magnet unit (31B) disposed on a second side (31d) of the holder (30). For example, the first magnet unit (31A) may face or overlap the second magnet unit (31B) in a third direction. For example, the first magnet unit (31A) may be disposed within the first mounting groove (16A) of the first side (31c) of the holder (30), and the second magnet unit (31B) may be disposed within the first mounting groove (16A) of the second side (31d) of the holder (30).

[0189] The second OIS magnet may include a third magnet unit (32) arranged on the lower surface (17) of the holder (30). The third magnet unit (32) may be arranged within the second mounting groove (16B) of the holder (30).

[0190] Each of the first to third magnet units (31A, 31B, 32) may be a unipolar magnet having one N pole and one S pole, but is not limited thereto, and in another embodiment may be a bipolar magnet having two N poles and two S poles. In another embodiment, at least one of the first to third magnet units (31A, 31B, 32) may be a unipolar magnet, and the rest may be bipolar magnets.

[0191] The OIS coil (230) may be arranged in the first housing (50) to correspond to or face the OIS magnet (31). For example, the OIS coil (230) may include a first OIS coil (230A, 230B) corresponding to, facing, or overlapping the first OIS magnet (31A, 31B) in a third direction and a second OIS coil (230C) corresponding to, facing, or overlapping the second OIS magnet (32) in a second direction.

[0192] For example, the first OIS coil may include a first OIS coil unit (230A) corresponding to, opposite to, or overlapping with the first magnet unit (31A) in a third direction, and a second OIS coil unit (230B) corresponding to, opposite to, or overlapping with the second magnet unit (31B) in a third direction. For example, the second OIS coil may include a third OIS coil unit (230C) corresponding to, opposite to, or overlapping with the third magnet unit (32) in the second direction.

[0193] For example, the first OIS coil unit (230A) may be placed on the third side (28C) of the first housing (50) (e.g., the first hole (34A)), the second OIS coil unit (230B) may be placed on the fourth side (28D) of the first housing (50) (e.g., the second hole (54B)), and the third OIS coil unit (230C) may be placed on the lower part (28B) of the first housing (50) (e.g., the third hole (54C)).

[0194] For example, the first OIS coil unit (230A) may have a closed curve or ring shape including a hollow or hole. The first OIS coil unit (230A) may be implemented in the form of a coil ring wound clockwise or counterclockwise around a third axis parallel to the third direction.

[0195] The second OIS coil unit (230B) may have a closed curve or ring shape including a hollow or hole. The second OIS coil unit (230B) may be implemented in the form of a coil ring wound clockwise or counterclockwise around a third axis parallel to the third direction.

[0196] The third OIS coil unit (230C) may have a closed curve or ring shape including a hollow or hole. The third OIS coil unit (230C) may be implemented in the form of a coil ring wound clockwise or counterclockwise around a second axis parallel to the second direction.

[0197] Referring to FIG. 10b, a first electromagnetic force (F21, F22, F31, F32) can be generated by the interaction between the first OIS magnet (31A, 31B) and the first OIS coil (230A, 230B). That is, the first electromagnetic force can be generated by the interaction between the first magnet unit (31A) and the first OIS coil unit (230A) and the interaction between the second magnet unit (31B) and the second OIS coil unit (230B). For example, a first-first electromagnetic force (F22, F32) may be generated by the interaction between the first magnet unit (31A) and the first OIS coil unit (230A), a first-second electromagnetic force (F21, F31) may be generated by the interaction between the second magnet unit (31B) and the second OIS coil unit (230B), and the first electromagnetic force may include the first-first electromagnetic force (F22, F32) and the first-second electromagnetic force (F21, F31).

[0198] Additionally, a second electromagnetic force (F1, F2) can be generated by the interaction between the second OIS magnet (32) and the third OIS coil unit (230C).

[0199] The OIS moving part (e.g., holder (30)) can be tilted along a second axis (e.g., X-axis) by the first electromagnetic force (F21, F22, F31, F32). Here, the second axis (X-axis) tilting means that the OIS moving part is tilted based on the second axis (X-axis) or the OIS moving part is rotated by a preset angle with the second axis (X-axis) as the rotation axis.

[0200] The OIS moving part can be tilted along a third axis (e.g., Y-axis) by the second electromagnetic force (F1, F2). Here, the third-axis (Y-axis) tilting means that the OIS moving part is tilted based on the third axis or that the OIS moving part is rotated by a preset angle around the third axis as the rotation axis.

[0201] At this time, the OIS movable part may include a holder (30). Alternatively, the OIS movable part may further include a configuration coupled or mounted to the holder (30), for example, an OIS magnet (31A, 31B, 32), a yoke (33), and a magnetic support (64). In addition, the OIS movable part may further include at least one of a mover plate (61) and a first magnetic body (62).

[0202] In addition, the first OIS coil unit (230A) and the second OIS coil unit (230B) can overlap in the third direction (Y-axis direction), and the first OIS magnet (31A) and the second OIS magnet (31B) can overlap in the third direction. By this arrangement, the electromagnetic force is applied evenly to the first side (31c) and the fourth side (31d) of the holder (30), so that the X-axis tilt can be performed accurately and precisely.

[0203] In another embodiment, the OIS moving part (e.g., holder (30)) may be tilted about a third axis (e.g., Y axis) by an electromagnetic force due to an interaction between the first OIS magnet (31A, 31B) and the first OIS coil (230A, 230B), and the OIS moving part (e.g., holder (30)) may be tilted about a second axis (e.g., X axis) by an electromagnetic force due to an interaction between the second OIS magnet (32) and the third OIS coil unit (230C).

[0204] The camera device (200) may further include a yoke (33: 33A, 33B, 33C) disposed on the OIS magnet (31, 32). For example, the yoke (33) may include a first yoke (33A) disposed on the first magnet unit (31A), a second yoke (33B) disposed on the second magnet unit (31B), and a third yoke (33C) disposed on the third magnet unit (32).

[0205] For example, the first yoke (33A) may be placed within the first mounting groove (16A) of the first side (31c) of the holder (30). For example, the first yoke (33A) may be placed inside the first magnet unit (31A). The second yoke (33B) may be placed within the first mounting groove (16A) of the second side (31d) of the holder (30). For example, the second yoke (33B) may be placed inside the second magnet unit (31B). The third yoke (33C) may be placed within the second mounting groove (16B) of the holder (30).

[0206] The third yoke (33C) can be positioned inside the third magnet unit (32). The first yoke (33A) and the second yoke (33B) can increase the first electromagnetic force, and the third yoke (33C) can increase the second electromagnetic force.

[0207] For example, a groove (35a) may be formed in at least one of the first to third yokes (33A to 33C) (e.g., the third yoke (33C)), and a protrusion (35b) corresponding to the groove (35a) may be formed in at least one of the mounting grooves (16A, 16B) of the holder (30) (see FIG. 6c). The groove (35a) and the protrusion (35b) may enhance the bonding force between the yoke (33) and the holder (30).

[0208] The first substrate portion (250) may be placed in the first housing (50). For example, the first substrate portion (250) may be coupled to the first housing (50). The first substrate portion (250) may be electrically connected to the OIS coil (230) and may supply a driving signal to the OIS coil (230).

[0209] For example, the first OIS coil unit (230A) and the second OIS coil unit (230B) may be connected in series with each other, and the first substrate portion (250) may provide a first driving signal to the first and second OIS coil units (230A, 230B) that are connected in series. In addition, the first substrate portion (250) may provide a second driving signal to the third OIS coil unit (230C). The first substrate portion (250) may include a first circuit board (250A) disposed on a third side (28C) of the first housing (50), a second circuit board (250B) disposed on a fourth side (28D) of the first housing (50), and a third circuit board (250C) disposed on a lower portion (27B) of the first housing (50).

[0210] Although the first circuit board (250A) is shown as being spaced apart from the third circuit board (250C) in FIG. 5, the first to third circuit boards (250A to 250C) may be a single, integrated board and may be electrically connected to each other. In other embodiments, at least one of the first to third circuit boards may not be integrated with the others and may be electrically connected to each other.

[0211] A hole (251A) may be formed in the first circuit board (250A) to be coupled with a coupling protrusion (51) of the third side (28C) of the first housing (50). In addition, the first circuit board (250A) may include a plurality of terminals (251).

[0212] The first OIS coil unit (230A) may be arranged or mounted on a first surface of the first circuit board (250A), and the plurality of terminals (251) may be arranged on a second surface of the first circuit board (250A). The first surface of the first circuit board (250A) may be a surface facing the outer surface of the third side (28C) of the first housing (50). The second surface of the first circuit board (250A) may be an opposite surface of the first surface of the first circuit board (250A).

[0213] The first circuit board portion (250) may include a folded portion connecting between the second circuit board (250B) and the third circuit board (250C) and between the first circuit board (250A) and the third circuit board (250C).

[0214] A hole (251B) may be formed in the second circuit board (250B) to be coupled with a coupling protrusion (51) of the fourth side (28D) of the first housing (50). A hole (251C) may be formed in the third circuit board (250C) to be coupled with a coupling protrusion (52B) of the lower portion (28B) of the first housing (50).

[0215] The second OIS coil unit (230B) may be placed or mounted on the first surface of the second circuit board (250B). The first surface of the second circuit board (250B) may be a surface facing the outer surface of the fourth side (28C) of the first housing (50).

[0216] The third OIS coil unit (230C) may be placed or mounted on the first surface of the third circuit board (250C). The first surface of the third circuit board (250C) may be a surface facing the outer surface of the lower portion (28B) of the first housing (50).

[0217] The first substrate portion (250) may include at least one of a rigid printed circuit board (Rigid PCB), a flexible printed circuit board (Flexible PCB), or a rigid-flexible printed circuit board (RigidFlexible PCB). In addition, the first substrate portion (250) may include a wiring pattern for electrically connecting components arranged on the first to third circuit boards (250A, 250B, 250C) and a plurality of terminals (251).

[0218] The camera device (200) may further include a gyro sensor (82) disposed on the first substrate (250). For example, the gyro sensor (82) may be a two-axis, three-axis, or five-axis gyro sensor or an angular velocity sensor.

[0219] The camera device (200) may further include a second driver (260) disposed on the first substrate (250). For example, the second driver (260) may be disposed or mounted on the first circuit board (250A). For example, the second driver (260) may be disposed on the first housing (50). For example, the second driver (260) may be disposed or mounted on the first surface of the first circuit board (250A) of the first housing (50).

[0220] The second driver (260) may be electrically connected to the first OIS coil (230A, 230B) and the second OIS coil (230C). In addition, the second driver (260) may be electrically connected to the first OIS position sensor (240A, 240B) and the second OIS position sensor (240C).

[0221] For example, the second driver (260) can provide a driving signal to each of the first OIS position sensor (240A, 240B) and the second OIS position sensor (240C), and can receive a first output signal of the first OIS position sensor (240A, 240B) and a second output signal of the second OIS position sensor (240C).

[0222] Additionally, for example, the second driver (260) can supply a first driving signal (e.g., driving current or driving voltage) to the first OIS coil (230A, 230B) and feedback control the first driving signal using the first output signal of the first OIS position sensor (240A, 240B).

[0223] Additionally, for example, the second driver (260) can supply a second driving signal (e.g., driving current or driving voltage) to the second OIS coil (230C) and feedback control the second driving signal using the second output signal of the second OIS position sensor (240C). For example, the second driver (260) can be expressed as an “OIS driver,” a “second driver IC,” or an “OIS control unit.”

[0224] Additionally, the camera device (200) may further include a cover plate (50A) disposed on the second side (28B) of the first housing (50) and covering the opening (55) of the first housing (50). The cover plate (50A) may be coupled or attached to the outer surface of the second side (28B) of the first housing (50) and may prevent foreign substances from entering the first housing (50).

[0225] The OIS position sensor unit (240) detects the position of the OIS movable part in the second direction or / and the third direction according to the movement of the OIS movable part, and outputs an output signal according to the detection result.

[0226] The OIS position sensor unit (240) may be replaced with a “second position sensor unit”.

[0227] The OIS position sensor unit (240) may include a plurality of position sensors.

[0228] For example, the OIS position sensor unit (240) may include a first OIS position sensor (240A, 240B) and a second OIS position sensor (240C).

[0229] The first OIS position sensor (240A, 240B) can detect the displacement (or tilt or tilt amount) of the OIS moving part (e.g., optical member (40)) with respect to a second axis (e.g., X-axis). In addition, for example, the second OIS position sensor (240C) can detect the displacement (or tilt or tilt amount) of the OIS moving part (e.g., optical member (40)) with respect to a third axis (e.g., Y-axis).

[0230] At least a portion of the first OIS position sensor (240A, 240B) may correspond to, face, or overlap the first OIS magnet (31) in the third direction and may detect the strength of the magnetic field of the first OIS magnet (31).

[0231] For example, the first OIS position sensor may include a first sensor (240A) arranged or mounted on a first circuit board (250A) and a second sensor (240B) arranged or mounted on a first substrate (250-1) of a second circuit board (240B). For example, the first sensor (240A) may be arranged within a hollow (or hole) of the first OIS coil unit (230A), and the second sensor (240B) may be arranged within a hollow (or hole) of the second OIS coil unit (230B).

[0232] For example, each of the first sensor (240A) and the second sensor (240B) may be a Hall sensor including first and second input terminals and first and second output terminals.

[0233] The first and second input terminals of the first sensor (240A) and the first and second input terminals of the second sensor (240B) can be connected in parallel, and the second driver (260) can supply a driving signal or power to the first and second input terminals of the first and second sensors (240A, 240B) connected in parallel.

[0234] The first and second output terminals of the first sensor (240A) and the first and second output terminals of the second sensor (240B) can be connected in series, and a first output signal can be output from both ends of the series-connected first and second output terminals of the first and second sensors (240A, 240B), and the first output signal can be transmitted to the second driver (260).

[0235] At least a portion of the second OIS position sensor (240C) may correspond to, face, or overlap the second OIS magnet (32) in the second direction and may detect the strength of the magnetic field of the second OIS magnet (32).

[0236] For example, the second OIS position sensor (240C) may include a third sensor (240C1) and a fourth sensor (240C2) arranged or mounted on a third circuit board (250C). The third sensor (240C1) and the fourth sensor (240C2) may face or overlap the third OIS magnet (32) in the second direction. For example, the third sensor (240C1) and the fourth sensor (240C2) may be arranged to be spaced apart from each other in the third direction. For example, the third sensor (240C1) and the fourth sensor (240C) may be arranged within a hollow (or hole) of the third OIS coil unit (230C).

[0237] For example, each of the third sensor (240C1) and the fourth sensor (240C2) may be a Hall sensor including first and second input terminals and first and second output terminals.

[0238] The first and second input terminals of the third sensor (240C1) and the first and second input terminals of the fourth sensor (240B) can be connected in parallel, and the second driver (260) can supply a driving signal or power to the first and second input terminals of the third and fourth sensors (240C1, 240C2) connected in parallel.

[0239] The first and second output terminals of the third sensor (240C1) and the first and second output terminals of the fourth sensor (240C2) can be connected in series, and a second output signal can be output from both ends of the series-connected first and second output terminals of the third and fourth sensors (240C1, 240C2), and the second output signal can be transmitted to the second driver (260).

[0240] The description of the first and second sensors (71A, 71B) and the first circuit board (192) described below or the description of the third and fourth sensors (72A, 27B) and the second circuit board (194) described below can be applied or analogically applied to the first and second sensors (240A, 240B), the third and fourth sensors (240C1, 240C2) and the first circuit board (250) of FIG. 5.

[0241] In another embodiment, the output terminals of each of the first and second sensors may be unconnected and independent of each other, and may output independent output signals. In addition, the output terminals of each of the third and fourth sensors may be unconnected and independent of each other, and may output independent output signals.

[0242] In another embodiment, the first OIS position sensor may include one position sensor (e.g., a Hall sensor or a driver IC including a Hall sensor), and the second OIS position sensor may include one position sensor (e.g., a Hall sensor or a driver IC including a Hall sensor).

[0243] FIG. 12 is a perspective view of a first actuator (310) and an image sensing unit (330) according to an embodiment, FIG. 13a is a first separated perspective view of the first actuator (310) and the image sensing unit (330) of FIG. 12, FIG. 13b is a second separated perspective view of the first actuator (310) and the image sensing unit (330) of FIG. 12, FIG. 14a is an ab cross-sectional view of the first actuator (310) and the image sensing unit (330) of FIG. 12, FIG. 14b is a cd cross-sectional view of the first actuator (310) and the image sensing unit (330) of FIG. 12, FIG. 15 is an separated perspective view of the first actuator (310), and FIG. 16a is an separated perspective view of the second housing (610). FIG. 16b is a perspective view of the body (612) of the second housing (610), FIG. 17a is a first perspective view of the first and second guide parts (614A, 614B) and the lens part (620), FIG. 17b is a second perspective view of the first and second guide parts (614A, 614B) and the lens part (620), and FIG. 18 is an exploded perspective view of the first and second magnets (130A, 130B) and the lens part (620).

[0244] Referring to FIGS. 12 to 18, the first actuator (310) may include a second housing (610), a lens unit (620) disposed within the second housing (610), and a first 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).

[0245] The lens unit (620) may be replaced with a “lens assembly.” For example, the lens unit (620) may include a plurality of lens assemblies.

[0246] In FIGS. 12 to 18, the lens unit (620) includes, but is not limited to, two lens assemblies (622, 624). For example, the second lens assembly (622) and the third lens assembly (624) may be arranged in the first direction.

[0247] The first actuator (310) may further include a first lens assembly (640) positioned between the lens unit (620) and the second actuator (320). For example, the first lens assembly (640) may be a fixed lens assembly whose position is fixed and does not move in the optical axis direction.

[0248] The first lens assembly (640) may include a first lens array (642) (or a first lens group). For example, the first lens assembly (640) may further include a lens barrel (641) coupled with the first lens array (642). In addition, the first lens assembly (640) may further include a third housing (643) coupled with the lens barrel (641). The third housing (643) may be disposed between the second housing (610) and the first housing (50), and may be coupled with at least one of the second housing (610) and the first housing (50).

[0249] For example, at least one first coupling hole (643A) may be formed on the front side of the third housing (643) for coupling with at least one coupling protrusion (46A) of the second housing (610). In addition, a second coupling hole may be formed on the rear side of the third housing (643) for coupling with at least one coupling protrusion (52A) of the first housing (50).

[0250] The first lens assembly (640) is represented as being included in the first actuator (310), but is not limited thereto, and may be represented as not being included in the first actuator (310). In other embodiments, the first lens assembly (640) may be omitted.

[0251] Additionally, in other embodiments, any one of 640, 622, 624 may be represented as a “first lens assembly”, any other one of 640, 622, 624 may be represented as a “second lens assembly”, and any other one of 640, 622, 624 may be represented as a “third lens assembly”.

[0252] For example, in the embodiment, the first lens assembly (640) may be a fixed lens group. For example, the second lens assembly (622) and the third lens assembly (624) may be movable lens groups.

[0253] For example, the first lens assembly (640) can perform a focal function that focuses parallel light at a specific location. In addition, the second lens assembly (622) can perform a variator function that refocuses the image focused by the first lens assembly (640), which is a condenser, at another location. Meanwhile, in the second lens assembly (622), the distance to the subject or the image distance may change significantly, so the magnification may change significantly, and the second lens assembly (622), 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 second lens assembly (6220), which is a variator, may slightly differ depending on the location.

[0254] Additionally, the third lens assembly (624) can perform a position compensation function for the image formed by the variable lens. For example, the third lens assembly (624) can perform a compensator function that accurately forms the image formed by the second lens assembly (622), which is a variable lens, onto the pixels of the image sensor (540).

[0255] For example, the second lens assembly (622) may be a zoom lens assembly that performs a zooming function, and the third lens assembly (624) may be a focus lens assembly that performs a focusing function.

[0256] Referring to FIGS. 16A and 16B, the second housing (610) may be positioned between the first housing (50) and the image sensor unit (330) (e.g., sensor base (550)). The second housing (610) may also be expressed as a “base” or a “holder”.

[0257] The second housing (610) can be placed inside the cover member (300) and can have a polyhedral (e.g., rectangular parallelepiped) shape having a space therein to accommodate the lens unit (620) and the first driving unit (630).

[0258] For example, the second 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 upper portion (142A) of the second housing (610) may face the upper portion (301) of the cover member (300), and the side portions (141-1 to 141-4) may face the side plate (302) of the cover member (300).

[0259] The sides (141-1 to 141-4) may be alternatively referred to as “side plates” or “side walls.” For example, the first side (141-1) and the second side (141-2) may face each other in the first direction or be positioned opposite each other, and the third side (141-3) and the fourth side (141-3) may face each other in the third direction or be positioned opposite each other.

[0260] A first opening (41A) (or first hole) for exposing one end of the lens portion (620) may be formed in the first side (141-1) of the second housing (610), and a second opening (41B) (or second hole) for exposing the other end of the lens portion (620) may be formed in the second side (141-2) of the second housing (610).

[0261] Additionally, a third opening (41C) (or third hole) for placing or settling the first coil (120A) may be formed in the third side (141-3) of the second housing (610), and a fourth opening (41C) (or third hole) for placing or settling the second coil (120B) may be formed in the fourth side (141-4) of the second housing (610). Each of the third and fourth openings (41C, 41D) is in the form of a through hole, but is not limited thereto, and may also be in the form of a groove.

[0262] At least one first coupling protrusion (45A) that is coupled to the first circuit board (192) of the second substrate (190) may be formed on the third side (141-3) of the second housing (610). For example, at least one first coupling protrusion (45A) may protrude from the outer surface of the third side (141-3).

[0263] At least one second coupling protrusion (45B) that is coupled to the second circuit board (194) of the second substrate (190) may be formed on the fourth side (141-1) of the second housing (610). For example, at least one second coupling protrusion (45B) may protrude from the outer surface of the fourth side (141-4). In addition, at least one third coupling protrusion (46A) may be formed on the second side (141-2) of the second housing (610).

[0264] The second housing (610) may include a first guide portion (614A) and a second guide portion (614B). The first guide portion (614A) may support and guide the second lens assembly (622) when the lens portion (620) moves by a zooming operation. The second guide portion (614B) may support and guide the third lens assembly (624) when the lens portion (620) moves by a zooming operation.

[0265] The first guide part (614A) may be placed between the lens part (620) and the third side part (141-3), and the second guide part (614b) may be placed between the lens part (620) and the fourth side part (141-4).

[0266] For example, the first guide portion (614A) can be coupled to the third side portion (141-3) of the second housing (610), and the second guide portion (614B) can be coupled to the fourth side portion (141-4) of the second housing (610).

[0267] Referring to FIGS. 17A and 17B, the first guide portion (614A) may include at least one first guide groove (212A). The second guide portion (614B) may include at least one second guide groove (212B). Here, the guide groove may be expressed as a “rail” or a “groove.”

[0268] For example, each of the first guide portion (614A) and the second guide portion (614B) may include a body (63A) and a protrusion (63B) extending and protruding from the body (63A).

[0269] For example, the first guide groove (212A) may be formed on the inner surface of the body (63A) of the first guide portion (614A), and the second guide groove (212B) may be formed on the inner surface of the body (63A) of the second guide portion (614B). In this case, the inner surface of the body (63A) of each of the first and second guide portions (614A, 614B) may be a surface facing the lens portion (620).

[0270] In FIGS. 17A and 17B, one first guide groove (212A) is formed on the lower side of the inner surface of the body (63A) of the first guide portion (614A), and one second guide groove (212B) is formed on the upper side of the inner surface of the body (63A) of the second guide portion (614B), but this is not limited thereto. In other embodiments, a guide groove may be formed on at least one of the upper side and the lower side of the inner surface of the body of each of the first and second guide grooves.

[0271] Each of the first and second guide grooves (212A, 212B) can be formed continuously from the front end to the rear end of the inner surface of the body (64A).

[0272] The protrusions (63B) of each of the first guide portion (614A) and the second guide portion (614B) may extend and protrude in a direction (e.g., a third direction) perpendicular to the direction in which the first and second guide grooves extend (e.g., a first direction). For example, the protrusions (63B) of the first guide portion (614A) and the protrusions (63B) of the second guide portion (614B) may protrude in opposite directions.

[0273] For example, the protrusion (63B) may be formed on the rear or rear end of each of the first guide portion (614A) and the second guide portion (614B).

[0274] At least one hole (68) may be formed in the protrusion (63B) of each of the first and second guide portions (614A, 614B) to be coupled with the rear end of the body (612) of the second housing (610). For example, the hole (68) of the protrusion (63B) may be coupled with the coupling protrusion (46A) of the body (612) of the second housing (610). For example, the coupling protrusion (46A) may pass through the hole (68) of the protrusion (63B) and be coupled to the first coupling hole (643A) of the third housing (643).

[0275] At least one engaging protrusion (6A) that engages with the body (612) of the second housing (610) may be formed on the front or front end of each of the first guide portion (614A) and the second guide portion (614B). For example, a engaging hole (6B) that engages with the engaging protrusion (6A) of the first and second guide portions (614A, 614B) may be formed on the inner surface of the body (612) of the second housing (610) (see FIG. 16B).

[0276] Referring to FIG. 16B, guide protrusions (44A to 44D) for guiding the first and second guide portions (614A, 614B) may be formed on the inner surface of the body (612) of the second housing (610). For example, the first guide protrusion (44A) may be arranged on the inner surface of the lower portion (142B) of the second housing (610), and the second guide protrusion (44B) may be arranged on the inner surface of the upper portion (142A) of the second housing (610) corresponding to the first guide protrusion (44A) in the second direction. The first guide portion (614A) may be arranged in the space (49A) between the first and second guide protrusions (44A, 44B) and the third side portion (141-3) of the second housing (610).

[0277] Also, for example, the third guide protrusion (44C) may be arranged on the inner surface of the lower portion (142B) of the second housing (610), and the fourth guide protrusion (44D) may be arranged on the inner surface of the upper portion (142A) of the second housing (610) corresponding to the third guide protrusion (44C) in the second direction. The second guide portion (614B) may be arranged in the space (49B) between the third and fourth guide protrusions (44C, 44D) and the fourth side portion (141-4) of the second housing (610).

[0278] The first and second guide portions (614A, 614B) can be stably coupled to the body of the second housing (610) by the first to fourth guide protrusions (44A to 44D), and the first and second guide portions (614A, 614B) can be prevented from being detached from their original positions or colliding with the lens portion (620) due to impact or the like.

[0279] The first guide portion (614A) may have a first opening (67A) (or hole) corresponding to, opposite to, or overlapping with the first magnet (130A). For example, the first opening (67A) may be located between the first magnet (130A) and the first coil (120A).

[0280] The second guide portion (614B) may have a second opening (67B) (or hole) corresponding to, opposite to, or overlapping with the second magnet (130B). For example, the first opening (67B) may be located between the second magnet (130B) and the second coil (120B). The electromagnetic force due to the interaction between the first magnet (130A) and the first coil (120A) and the electromagnetic force due to the interaction between the second magnet (130B) and the second coil (120B) may be increased by the first and second openings (67A, 67B).

[0281] In FIGS. 16A and 16B, the first and second guide portions (614A, 614B) and the body (612) of the second housing (610) are formed as separate injection molded products, and the separate objects are combined with each other, but this is not limited thereto. In other embodiments, the first and second guide portions may be formed as a single injection molded product with the body of the second housing.

[0282] An opening (621) exposing a portion of a lens portion (620) may be formed in the upper portion (142A) of the body (612) of the second housing (610), and the second housing (610) may further include a cover (614) covering the opening (621). In other embodiments, the opening (621) may not be formed, and the cover (614) may be omitted.

[0283] The lens unit (620) may include a second lens assembly (622) that moves along the first guide unit (614A) and a third lens assembly (624) that moves along the second guide unit (614B).

[0284] Referring to FIGS. 17A, 17B, and 18, the second lens assembly (622) may include a first lens holder (29) and a second lens array (49) (or second lens group) disposed in the first lens holder (29). The lens holder may be alternatively expressed as a “bobbin.”

[0285] The second lens array (49) may include a single lens or multiple lenses.

[0286] The first lens holder (29) may include a first lens barrel (29A) in which a second lens array (49) is arranged and a first support member (29B) coupled to the first lens barrel (29A).

[0287] 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).

[0288] The first side (or first surface) of the first support member (29B) can be coupled to the first lens barrel (29A). The first support member (29B) can correspond to, face, or overlap with the body (63A) of the first guide member (614A) in the third direction.

[0289] A first mounting portion (30A) may be formed on the second side (or second surface) of the first support portion (29B) to place or mount the first magnet (130A). The second side (or second surface) of the first support portion (29B) may be a surface facing the first guide portion (614A) and may be an opposite surface of the first side (or first surface) of the first support portion (29B).

[0290] For example, the first mounting portion (30A) may include a first mounting surface (11A) formed in one area (e.g., a central area) of the second side (or second surface) of the first support portion (29B) and at least one first supporting protrusion (11B) protruding from the first mounting surface (11A). In FIG. 18, the first mounting portion (30A) includes four first supporting protrusions formed at four corners of the second side of the first support portion (29B), and the four first supporting protrusions may support the first magnet (130A). In other embodiments, the number of first supporting protrusions of the first mounting portion may be one or two or more.

[0291] The first support member (29B) may include at least one first groove (13A) (or first guide groove) for accommodating at least a portion of the first cloud member (12A).

[0292] For example, at least one first groove (13A) may correspond to, be opposite to, or overlap with at least one first guide groove (212A) of the first guide portion (614A).

[0293] For example, two first grooves spaced apart from each other may be formed on the mounting surface (11A) of the first mounting portion (30A), and two first grooves spaced apart from each other may be formed below the mounting surface (11B). In another embodiment, two grooves formed above or below the mounting surface (11B) may be connected to each other to form one groove. For example, the number of grooves may be the same as the number of balls (B11 to B14), but is not limited thereto.

[0294] The third lens assembly (624) may include a second lens holder (39) and a third lens array (59) (or third lens group) disposed in the second lens holder (39).

[0295] The third lens array (59) may include a single lens or a plurality of lenses. The 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.

[0296] The distance in the optical axis direction between the second lens group and the third lens group can be varied by the first driving unit (630).

[0297] The second lens holder (39) may include a second lens barrel (39A) in which a third lens array (59) is arranged and a second support member (39B) coupled to the second lens barrel (39A).

[0298] For example, the second lens barrel (39A) may have a barrel shape and may include an opening (39C) (or hole) for coupling the second lens array (49).

[0299] The first side (or first surface) of the second support member (39B) can be coupled to the second lens barrel (39A). The second support member (39B) can correspond to, face, or overlap with the body (63A) of the second guide member (614B) in the third direction.

[0300] A second mounting portion (30B) may be formed on the second side (or second surface) of the second support portion (39B) to place or mount the second magnet (130B). The second side (or second surface) of the second support portion (39B) may be a surface facing the second guide portion (614B) and may be an opposite surface of the first side (or first surface) of the second support portion (39B).

[0301] For example, the second anchoring portion (30B) may include a second anchoring surface formed in one area (e.g., a central area) of the second side (or second surface) of the second support portion (39B) and at least one second support protrusion protruding from the second anchoring surface. The description of the first anchoring surface (11A) and the first support protrusion (11B) of the first support portion (29B) may be applied or mutatis mutandis to the second anchoring surface and the second support protrusion of the second support portion (29B).

[0302] The second support member (39B) may include at least one second groove (13B) (or second guide groove) for accommodating at least a portion of the second cloud member (12B).

[0303] For example, at least one second groove (13B) may correspond to, be opposite to, or overlap with at least one second guide groove (212B) of the second guide portion (614B). The description of the first groove (13A) of the first support portion (30A) may be applied or applied to the second groove (13B) of the second support portion (30B).

[0304] Each of the first and second guide grooves (212A, 212B) and the first and second grooves (13A, 13B) may have a V or U shape, but is not limited thereto, and may have a shape that makes contact with the balls (B11 to B14, B21 to B24) at two or more points. The second and third lens assemblies (622, 624) can be prevented from being decentered or tilted when moved by the first and second guide grooves (212A, 212B) and the first and second grooves (13A, 13B). As a result, the alignment between the plurality of lens arrays is well matched, preventing the change in the angle of view or the occurrence of out-of-focus, so that the image quality or resolution of the camera device (200) can be significantly improved.

[0305] The first actuator (310) may further include a cloud member (12A, 12B) disposed between the second housing (610) and the lens unit (620). For example, the cloud member (12A, 12B) may be disposed between the guide member (614A, 614B) of the second housing (610) and the groove (13A, 13B) of the support member (39A, 39B) of the lens unit (620).

[0306] The cloud member may be expressed as a “ball member”, “ball”, or “ball bearing”. For example, the cloud member (12A, 12B) may include at least one ball.

[0307] The cloud members (12A, 12B) can be in contact with the second housing (610) and the lens unit (620) and can support the lens unit (620). When the lens unit (620) moves in the first direction, the cloud members (12A, 12B) can reduce friction between the lens unit (620) and the second housing (610) by performing a rolling motion between the lens unit (620) and the second housing (610). That is, by the rolling motion of the cloud members (12A, 12B), the lens unit (620) can be moved in a sliding manner in the first direction along the first and second guide units (614A, 614B) by coming into contact with the cloud members (12A, 12B).

[0308] For example, the cloud member may include a first cloud member (12A) and a second cloud member (12B). The first cloud member (12A) may be disposed between the first guide portion (614A) of the second housing (610) and the second lens assembly (622) (e.g., the first support portion (29B)). The second cloud member (12B) may be disposed between the second guide portion (614B) of the second housing (610) and the third lens assembly (624) (e.g., the second support portion (39B)).

[0309] The first cloud member (12A) may include a plurality of balls (B11 to B14), and the second cloud member (12B) may include a plurality of balls (B21 to B24). Each of the balls (B11 to B14, B221 to B24) may be made of a metal material, a plastic material, or a resin material, but is not limited thereto. Each of the balls (B11 to B14, B221 to B24) may have a circular shape and may have a diameter sufficient to support the movement of the lens unit (620).

[0310] Next, the first driving unit (630) will be described.

[0311] The first driving unit (630) can move the second lens assembly (622) in the first direction and move the third lens assembly (624) in the first direction.

[0312] For example, the first 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.

[0313] The first driving unit (630) may include a magnet (130) disposed in the lens unit (620) and a coil (120) disposed in the second housing (610). For example, the magnet (130) may include a first magnet (130A) disposed in the second lens assembly (622) and a second magnet (130B) disposed in the third lens assembly (624).

[0314] For example, the first magnet (130A) may be placed in the first lens holder (29) of the second lens assembly (622), and the second magnet (130B) may be placed in the second lens holder (39) of the third lens assembly (624).

[0315] For example, the first magnet (130A) may be placed on the first mounting portion (30A) of the first support portion (29B) of the first lens holder (29), and the second magnet (130B) may be placed on the second mounting portion (30B) of the second support portion (39B) of the second lens holder (39).

[0316] For example, each of the first and second magnets (130A, 130B) may be a unipolar magnet including one N pole and one S pole. In another embodiment, each of the first and second magnets (130A, 130B) may be a bipolar magnet including two N poles and two S poles.

[0317] The coil (120) may include a first coil (120A) corresponding to, opposite to, or overlapping with the first magnet (130A) in a third direction and disposed on a third side (142-3) of the second housing (610), and a second coil (120B) corresponding to, opposite to, or overlapping with the second magnet (130B) in a third direction and disposed on a fourth side (142-4) of the second housing (610).

[0318] For example, each of the first coil (120A) and the second coil (120B) may be in the form of a closed curve or ring having a hollow (or hole). For example, each 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 of) a third axis parallel to the third direction.

[0319] For example, the N pole and the S pole of the first magnet (130A) may be arranged to face the first coil (120A), and the N pole and the S pole of the second magnet (130B) may be arranged to face the second coil (120B). For example, the hollow or hole of each of the first and second coils (120A, 120B) may face the first and second magnets (130A, 130B) in a third direction.

[0320] A first driving signal (e.g., a first current) can be applied to the first coil (120A), and a second driving signal (e.g., a second current) can be applied to the second coil (120B).

[0321] The first lens assembly (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 (130A). In addition, the second lens assembly (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 (130B).

[0322] By controlling the first driving signal and the second driving signal, the movement of each of the first lens assembly (622) and the second lens assembly (624) can be controlled. As the movement of each of the first lens assembly (622) and the second lens assembly (624) is controlled, the position (or displacement) of each of the first lens assembly (622) and the second lens assembly (624) can be controlled, thereby performing zooming and auto-focusing of the camera device (200).

[0323] Referring to FIG. 18, the first driving unit (630) may further include a first yoke (19-1) disposed in the first lens holder (29) and a second yoke (19-2) disposed in the second lens holder (39).

[0324] The first yoke (19-1) can increase the electromagnetic force due to the interaction between the first magnet (130A) and the first coil (120A), and the second yoke (19-2) can increase the electromagnetic force due to the interaction between the second magnet (130B) and the second coil (120B). The driving force for moving the lens unit (620) can be improved by the first and second yokes (19-1, 19-2), thereby reducing power consumption.

[0325] For example, the first yoke (19-1) may be placed between the first magnet (130A) and the first lens holder (29), and the second yoke (19-2) may be placed between the second magnet (130B) and the second lens holder (39). For example, the first yoke (19-1) may be placed on the first mounting portion (30A) of the first support portion (29B), and the second yoke (19-2) may be placed on the second mounting portion (30B) of the second support portion (39B).

[0326] For example, the first yoke (19-1) may include a first portion (19A) facing the first magnet (130A) in the third direction and disposed on the first mounting surface (11A), and a second portion (19B) extending from at least one of one end and the other end of the first portion (19A). For example, the second portion (19B) may include a 2-1 portion supporting one end of the first magnet (130A) and a 2-2 portion supporting the other end of the first magnet (130A).

[0327] The first driving unit (630) may further include a second substrate unit (190) electrically connected to the first coil (120A) and the second coil (120B). For example, the second substrate unit (190) may be a printed circuit board.

[0328] The second substrate portion (190) may be disposed in the second housing (610). For example, the second substrate portion (190) may include a first circuit substrate (192) disposed on a third side (142-3) of the second housing (610) and a second circuit substrate (194) disposed on a fourth side (142-4) of the second housing (610). For example, the first circuit substrate (192) may include at least one hole (192A) for coupling with at least one first coupling protrusion (45A) of the second housing (610), and the second circuit substrate (194) may include at least one hole (194A) for coupling with at least one second coupling protrusion (45B) of the second housing (610).

[0329] The first coil (120A) may be placed or mounted on the first surface of the first circuit board (192). At this time, the first surface of the first circuit board (192) may be a surface facing the third side (142-3) of the second housing (610) in the third direction. The second coil (120B) may be placed or mounted on the first surface of the second circuit board (194). At this time, the first surface of the second circuit board (194) may be a surface facing the fourth side (142-4) of the second housing (610) in the third direction.

[0330] The first circuit board (192) may be electrically connected to the first coil (120A). For example, two pads electrically connected to the first coil (120A) may be formed on a first surface of the first circuit board (192). In addition, the first circuit board (192) may include a plurality of terminals (254A). For example, the plurality of terminals (254A) may be formed on a second surface of the first circuit board (192). For example, the second surface of the first circuit board (192) may be an opposite surface of the first surface of the first circuit board (192). For example, two terminals among the plurality of terminals (254A) may be electrically connected to two pads of the first circuit board (192) that are connected to the first coil (120A) and may be electrically connected to the first coil (120A).

[0331] The second circuit board (194) may be electrically connected to the second coil (120B). For example, two pads electrically connected to the second coil (120B) may be formed on a first surface of the second circuit board (194). In addition, the second circuit board (194) may include a plurality of terminals (254B).

[0332] For example, a plurality of terminals (254b) may be formed on the second surface of the second circuit board (194). For example, the second surface of the second circuit board (194) may be the opposite surface of the first surface of the circuit board (192). Although the terminals (254b) are not specifically visible in FIG. 15, terminals (254B) may be formed on the second surface of the second circuit board (194) in the same form as the terminals (254a) of the first circuit board (192).

[0333] For example, two terminals among the plurality of terminals (254B) can be electrically connected to two pads of the second circuit board (194) that are connected to the second coil (120B) and can be electrically connected to the second coil (120B).

[0334] The second driving unit (70) may include a first position sensor unit (170) for performing feedback driving for accurate zooming and AF operation.

[0335] The first position sensor unit (170) may include a first position sensing unit (71) for detecting the position or displacement of the second lens assembly (622) and a second position sensing unit (72) for detecting the position or displacement of the third lens assembly (624).

[0336] For example, the first position sensing unit (71) may be placed or mounted on the first circuit board (192) and may be electrically connected to the first circuit board (192). The second position sensing unit (72) may be placed or mounted on the second circuit board (194) and may be electrically connected to the second circuit board (184).

[0337] For example, the first position sensing unit (71) may be placed or mounted on the first surface of the first circuit board (192), and the second position sensing unit (72) may be placed or mounted on the first surface of the second circuit board (194). For example, the first position sensing unit (71) may be placed within the hollow of the first coil (120A), and the second position sensing unit (72) may be placed within the hollow of the second coil (120B).

[0338] For example, the first position sensing unit (71) may face or overlap the first magnet (130A) in the third direction. For example, the first position sensing unit (71) may be placed on the opposite side of the first magnet (130A).

[0339] The strength of the magnetic field of the first magnet (130A) can be detected. For example, the first position sensing unit (71) can detect the movement of the first magnet (130A) in the direction of the optical axis. The second position sensing unit (72) can face or overlap the second magnet (130B) in the third direction. For example, the second position sensing unit (72) can be placed on the opposite side of the second magnet (130B).

[0340] The strength of the magnetic field of the second magnet (130B) can be detected. For example, the second position sensing unit (72) can detect the movement of the second magnet (130B) in the direction of the optical axis.

[0341] For example, the first position sensing unit (71) may include a first sensor (71A) and a second sensor (71B). For example, each of the first and second sensors (71A, 71B) may be a Hall sensor. For example, the first sensor (71A) and the second sensor (71B) may be arranged spaced apart from each other in the first direction.

[0342] For example, the second position sensing unit (72) may include a third sensor (72A) and a fourth sensor (72B). For example, each of the third and fourth sensors (72A, 72B) may be a Hall sensor. For example, the third sensor (72A) and the fourth sensor (72B) may be arranged spaced apart from each other in the first direction.

[0343] In FIG. 15, each of the first position sensing unit (71) and the second position sensing unit (72) includes two sensors, but in other embodiments, each of the first position sensing unit and the second position sensing unit may include one sensor, and in this case, one sensor may be in the form of a Hall sensor or a driver IC including a Hall sensor.

[0344] The camera device (200) may include a memory (596) arranged on the second substrate (190). For example, the memory (596) may be a non-volatile memory, such as an Electrically Erasable PROM (EEPROM).

[0345] For example, the memory (596) may be placed or mounted on the second circuit board (194) and may be electrically connected to the second circuit board (194).

[0346] After completing the assembly of the actuator (610, 620), a single-piece process inspection is performed to examine the actuator's operating characteristics. The inspection regarding the operating characteristics may include hall calibration, lens inspection, or an active alignment process for actively aligning the image sensor and lens. For example, the lens inspection may include an inspection to verify resolution while assembling the lens and moving the lens assembly.

[0347] A storage device is required to store relevant information and data for inspecting these driving characteristics. Since the first driver (542) is not equipped in the camera device during the single-piece process inspection step for the actuator (610, 620), the memory (596) can store values ​​or data required for inspecting the driving characteristics of the actuator (610, 620).

[0348] For example, the memory (596) can store data necessary for driving the driving unit.

[0349] At this time, the driving unit may include at least one of the first driving unit (630) and the second driving unit (70). For example, the memory (596) may store at least one of the data of the first position sensing unit (71) corresponding to the movement range of the second lens group and the data of the second position sensing unit (72) corresponding to the movement range of the third lens group.

[0350] At this time, the data of the first position sensing unit (71) may be data (or reference code value) regarding the output of the first position sensing unit (71) corresponding to the movement range of the second lens group obtained through calibration. In addition, the data of the second position sensing unit (72) may be data (or reference code value) regarding the output of the second position sensing unit (72) corresponding to the movement range of the third lens group obtained through calibration.

[0351] Additionally, the memory (596) can store data of the first OIS position sensor (240A, 240B) corresponding to the second axis (X-axis) tilting range of the OIS movable part. At this time, the data of the first OIS position sensor (240A, 240B) may be a reference code value regarding the output of the first OIS position sensor (240A, 240B) corresponding to the second axis (X-axis) tilting range of the OIS movable part obtained through calibration.

[0352] Additionally, the memory (596) can store data of the second OIS position sensor (240C) corresponding to the third axis (Y-axis) tilting range of the OIS movable part. At this time, the data of the second OIS position sensor (240C) may be a reference code value regarding the output of the second OIS position sensor (240C) corresponding to the third axis (Y-axis) tilting range of the OIS movable part obtained through calibration.

[0353] The first driver (542) may be installed in the camera device after the above-described active alignment process is completed. Therefore, the embodiment facilitates the unit process inspection of the actuator included in the camera device by mounting, arranging, or providing a memory for storing values ​​necessary for inspecting the driving characteristics of the actuator (610, 620) in the actuator. The memory (596) may remain in the product after the unit process inspection is completed.

[0354] In other embodiments, the memory (596) may be removed and omitted from the final product prior to product shipment.

[0355] For example, the memory (596) may be electrically connected to at least one terminal among a plurality of terminals (254B) of the second circuit board (194).

[0356] The camera device (200) may further include a temperature sensor (566) disposed on the second substrate (190). For example, the temperature sensor (566) may measure the temperature of the camera device (200) or the surroundings of the camera device (200) and output temperature information based on the measured result.

[0357] Referring to FIG. 15, the first actuator (310) may further include glass (115) positioned in front of the lens portion (620). For example, the glass (115) may be positioned within the second housing (610) to cover the first opening (41A) of the second housing (610), thereby protecting the lens portion (620) and preventing foreign substances from entering the second housing.

[0358] The image sensing unit (330) may include an image sensor (540) that receives and detects light passing through the optical member (40) of the second actuator (320) and the lens assemblies (640, 622, 624) of the first actuator (310) and converts the detected light into an electrical signal.

[0359] For example, the image sensor (540) 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 from which an image is formed.

[0360] The image sensing unit (330) may include a third substrate portion (530) electrically connected to the image sensor (540). The third substrate portion (530) may be disposed spaced apart from the second housing (610). For example, the third substrate portion (530) may be expressed as a sensor substrate portion.

[0361] Based on the second housing (610), the first substrate part (250) can be placed in front of the second housing (610), the third substrate part (530) can be placed in the rear of the second housing (610), and the second substrate part (190) can be placed on the side of the second housing (610).

[0362] For example, the second substrate portion (190) may be disposed on a first side (e.g., left or right) of the second housing (610). For example, the first circuit board (192) may be disposed on a first side of the second housing (610), and the second circuit board (192) may be disposed on a third side of the second housing (610). The third substrate portion (530) may be disposed on a second side (e.g., rear) of the second housing (610).

[0363] Additionally, the first substrate portion (250) may be placed on the fourth side of the second housing (610). The first side and the third side may be positioned opposite each other, and the second side and the fourth side may be positioned opposite each other.

[0364] The third substrate portion (530) may include a first substrate (531) on which an image sensor (540) is arranged or mounted. For example, the image sensor (540) may be arranged on a first surface of the first substrate (531), and the first surface of the first substrate (531) may be a surface facing the first actuator (310) or the lens portion (620). The first substrate (531) may also be expressed as a “sensor substrate.”

[0365] The first substrate (531) may include a plurality of first terminals (253A) and a plurality of second terminals (253B). For example, the plurality of first terminals (253A) may be disposed between the image sensor (540) and a first end of the first substrate (531), and the plurality of second terminals (253B) may be disposed between the image sensor (540) and a second end of the first substrate (531). The first end may be located opposite the second end.

[0366] For example, a plurality of first terminals (253A) may correspond to, face, or overlap a plurality of terminals (254A) of the first circuit board (192) in the first direction, and may be electrically connected to the plurality of terminals (254A) of the first circuit board (192) by solder or a conductive adhesive.

[0367] For example, in order to facilitate solder bonding, the end (or first end) or terminal portion of the first circuit board (192) on which the plurality of terminals (254A) are formed may include a bent or curved portion. For example, the terminal portion of the first circuit board (192) on which the plurality of terminals (254A) are formed may be an inclined portion that is bent or curved inward.

[0368] For example, a plurality of second terminals (253B) may correspond to, face, or overlap a plurality of terminals (254B) of the second circuit board (194) in the first direction, and may be electrically connected to the plurality of terminals (254B) of the second circuit board (194) by solder or a conductive adhesive.

[0369] For example, in order to facilitate solder bonding, the end (or first end) or terminal portion of the second circuit board (194) on which the plurality of terminals (254B) are formed may include a bent or curved portion. For example, the terminal portion of the second circuit board (194) on which the plurality of terminals (254B) are formed may be an inclined portion that is bent or curved inward.

[0370] The third substrate portion (530) may include a second substrate (532) connected to the first substrate (531) and extending in the first direction. The second substrate (532) may include a plurality of terminals (252). The first substrate portion (250) may be electrically connected to the third substrate portion (530). For example, the plurality of terminals (252) of the second substrate (532) may be electrically connected to the plurality of terminals (251) of the first circuit board (250A) of the first substrate portion (250) by a conductive adhesive or solder.

[0371] For example, referring to FIGS. 12, 13a, and 13b, the second substrate (532) may be positioned to face the first circuit substrate (192) in a third direction and may be positioned on the second surface of the first circuit substrate (192). For example, the third substrate portion (530) may include a folded portion between the first substrate (532) and the second substrate (532).

[0372] The third substrate portion (530) may include a connector (534) including a port or socket for electrical connection with an external device. For example, the port or socket may be formed on at least one of the upper (top) or lower (bottom) side of the connector.

[0373] Additionally, the third substrate portion (530) may further include a third substrate (533) connecting the second substrate (532) and the connector (534). The third substrate portion (530) may be a printed circuit board. For example, each of the first to third substrates (531, 532, 533) may include at least one of a rigid substrate and a flexible substrate.

[0374] In another embodiment, at least one of the second substrate (532) and the connector (534) may be omitted, and the port or socket may be formed on the first substrate. In yet another embodiment, the port or socket may be formed on at least one of the first to third substrates.

[0375] The image sensing unit (330) may further include a first driver (542) disposed on the third substrate unit (530). The first driver (542) may be disposed or mounted on the first substrate (531).

[0376] For example, the first driver (542) may be positioned between the image sensor (540) and a plurality of second terminals (253B). Each of the first driver (542) and the second driver (260) may be replaced with a “control unit.” In addition, for example, each of the first and second drivers (542, 260) may include a storage unit or memory.

[0377] The third substrate portion (530) may be provided with circuit elements, passive elements, active elements, or circuit patterns.

[0378] The image sensing unit (330) may further include a sensor base (550) disposed between the third substrate unit (530) and the first actuator, and a filter (560) disposed on the sensor base (550). For example, the sensor base (550) may be disposed between the first substrate (531) of the third substrate unit (530) and the second housing (610).

[0379] The sensor base (550) can be bonded, attached or fixed to the first surface of the first substrate (531) by means of an adhesive (545). The lower or bottom surface of the sensor base (550) can be bonded to the first surface of the first substrate (531) by means of an adhesive (545).

[0380] For example, at least one coupling protrusion (551) may be formed on the lower surface or bottom of the sensor base (550), and at least one hole (530A) for coupling with at least one coupling protrusion (551) may be formed on the first substrate (531).

[0381] The sensor base (550) may include a mounting portion (550A) for placing or mounting the filter (610). For example, the mounting portion (550A) may be formed on a first surface of the sensor base (550). The first surface of the sensor base (550) may be a surface facing the second housing (610) in the first direction. For example, the mounting portion (500A) may be in the form of a recess, a cavity, or a hole recessed from the first surface of the sensor base (550), but is not limited thereto. In another embodiment, the mounting portion may be in the form of a protrusion protruding from the first surface of the sensor base (550). The sensor base (550) may also be expressed as a “holder”.

[0382] The filter (560) is placed on the mounting portion (550A) of the sensor base (550). For example, the mounting portion (550A) of the sensor base (550) may include an inner surface and a bottom surface, and the filter (560) may be placed on the bottom surface of the mounting portion (500A) of the sensor base (550).

[0383] The sensor base (550) may include an opening (552) (or through hole) to allow light passing through the filter (560) to enter the image sensor (540). The opening (552) may correspond to, face, or overlap the image sensor (550) (e.g., the imaging area). For example, the opening (552) may be formed on the bottom surface of the mounting portion (550A). The area of ​​the opening (552) may be smaller than the area of ​​the upper or lower surface of the filter (560), but is not limited thereto.

[0384] The filter (560) may block light of a specific frequency band from passing through the lens unit (620) from entering the image sensor (540). For example, the filter (560) may be an infrared blocking filter, but is not limited thereto. For example, the filter (560) may be arranged parallel to an xy plane perpendicular to the first direction. For example, the filter (560) may be attached to the bottom surface of the mounting portion (550A) of the sensor base (550) by an adhesive material (not shown), such as UV epoxy. The filter (560) and the image sensor (540) may be arranged spaced apart from each other so as to face each other in the first direction.

[0385] The image sensing unit (330) may further include a reinforcing member (510) disposed on the third substrate unit (530). For example, the reinforcing member (510) may be disposed on the second surface of the first substrate (531), and the second surface of the first substrate (531) may be the opposite surface of the first surface of the first substrate (531).

[0386] The reinforcing material (510) may be formed of a conductive material with high thermal conductivity, such as a metal material. For example, the reinforcing material (510) may be formed of SUS, aluminum, etc., but is not limited thereto.

[0387] Additionally, the reinforcing material (510) may be electrically connected to the ground terminal of the third substrate (530), thereby acting as a ground to protect the camera device (200) from ESD (Electrostatic Discharge Protection).

[0388] The image sensing unit (330) may further include a heat dissipation member (520) placed or attached to the reinforcing member (510). For example, the heat dissipation member (52) may be attached to at least one of the first substrate (531) and the reinforcing member (510) and may perform a heat dissipation function.

[0389] Next, the first position sensing unit (71) and the second position sensing unit (72) will be described.

[0390] The first sensor (71A) may include a first input terminal, a second input terminal, a first output terminal, and a second output terminal. The second sensor may include a first input terminal, a second input terminal, a first output terminal, and a second output terminal.

[0391] For example, the first input terminal of the first sensor (71A) and the first input terminal of the second sensor (71B) may be negative (-) input terminals, and the second input terminal of the first sensor (71A) and the second input terminal of the second sensor (71B) may be positive (+) input terminals. Here, the positive terminal and the negative terminal may not only mean polarity, but may also mean that there is a difference in relative size even if the polarity is the same.

[0392] Additionally, for example, the first output terminal of the first sensor (71A) and the first output terminal of the second sensor (71B) may be negative (-) output terminals, and the second output terminal of the first sensor (71A) and the second output terminal of the second sensor (71B) may be positive (+) output terminals.

[0393] The first and second input terminals of the first sensor (71A) and the first and second input terminals of the second sensor (71B) can be connected in parallel. The first and second output terminals of the first sensor (71A) and the first and second output terminals of the second sensor (71B) can be connected in series.

[0394] In addition, a first output signal, for example, a first output voltage, may be output from the second output terminal of the first sensor (71A) and the first output terminal of the second sensor (71B). For example, the first output signal may be a result of adding the output of the first sensor (71A) and the output of the second sensor (71B). For example, the sensing range of the first position sensing unit (71) may be expressed as the sum of the sensing range of the first sensor (71A) and the sensing range of the second sensor (71B). The first output signal (V1) may be output through the first and second terminals of the circuit board (192). In addition, for example, the third and fourth terminals of the first circuit board (192) may be electrically connected to the first coil (120A).

[0395] Since the output terminals of the first and second sensors (71A, 71B) are connected in series with each other, the size of the first output signal can be greater than the size of the output of one sensor. That is, in the embodiment, by connecting the output terminals of the first and second sensors (71A, 71B) in series, the size of the first output signal of the first position sensing unit (71) corresponding to the movement range (displacement or stroke section) of the second lens assembly (622) in the first direction can be increased.

[0396] In order to perform continuous zooming, control over the long stroke range or movement range of the second lens assembly (622) is required, and for easy control over the long stroke range (or movement range), the output of the Hall sensor that detects the displacement of the second lens assembly must be large.

[0397] Typically, forcing Hall sensor output digitally can degrade feedback control characteristics due to noise, potentially compromising the reliability of zooming and focusing operations. Furthermore, placing an analog amplifier within the camera to amplify Hall sensor output can impose spatial constraints, potentially compromising camera design freedom.

[0398] In an embodiment, by connecting the output terminals of two Hall sensors (71A, 71B) in series, the size of the output signal of the first position sensing unit (71) can be increased. This can improve the characteristics of the first actuator (310) for the second lens assembly (622), and solve the above-described problem.

[0399] For example, since the size of the first output signal increases, the code value (or data) corresponding to the first output signal of the first position sensing unit (71) can be increased, and the sensitivity of the first position sensing unit (71) to the movement of the second lens assembly (622) can be improved, thereby improving the resolution of the camera device. At this time, the code value may be a code value (or data) preset through calibration.

[0400] The description of the electrical connection relationship between the input terminals, output terminals, and the output signal of the first position sensing unit (71) of the first sensor (71A) and the second sensor (71B), the first coil (120A), and the terminals of the first circuit board (192) can also be applied or analogized to the electrical connection relationship between the output signal of the third sensor (72A), the fourth sensor (72B), the second position sensing unit (72), the second coil (120B), and the terminals of the second circuit board (194). For example, a second output signal, for example, a second output voltage, can be output from the serially connected output terminals of the third sensor (72A) and the fourth sensor (72B). Since the output terminals of the third and fourth sensors (72A, 72B) are serially connected to each other, the magnitude of the second output signal can be greater than the magnitude of the output of one sensor. That is, in the embodiment, by connecting the output terminals of the third and fourth sensors (72A, 712) in series, the size of the second output signal of the second position sensing unit (72) corresponding to the movement range (or displacement, or stroke section) of the third lens assembly (624) in the first direction can be increased. The above-described effect of increasing the size of the first output signal of the first position sensing unit (71) can also be applied or analogically applied to the second position sensing unit (72).

[0401] The memory (596) may be located outside the second coil (120B). For example, the memory (596) may be located outside the hollow portion of the second coil (120B).

[0402] The second circuit board (194) may include a terminal portion (or pad) (not shown) for electrically connecting the memory (596) by mounting or soldering, and the terminal portion may be located outside the coil (120B) or outside the hollow portion of the coil (120B).

[0403] The memory (596) may include two input terminals, a data terminal, and a clock terminal, which may be electrically connected to a second circuit board. The memory (596) may include a plurality of test terminals electrically connected to the two input terminals, the data terminal, and the clock terminal.

[0404] Using a protocol for data communication, such as I2C communication, the memory (596) can transmit data to or receive data from the outside through test terminals. In this case, the data may be data required for performing an actuator unit process inspection, such as data required for driving the driving unit (630, 70).

[0405] Fig. 19 shows a functional block diagram of a camera device (200) according to an embodiment.

[0406] Referring to FIG. 19, the camera device (200) may include a first substrate portion (250), a second substrate portion (190), a third substrate portion (530), a first actuator (310), a second actuator (320), a control portion (810), and an image sensor (540). For example, the control portion (810) may include a first driver (542) and a second driver (260).

[0407] The first driver (542) can move the second lens assembly (622) (or the second lens group) in the optical axis direction. The first driver (542) can move the third lens assembly (624) (or the third lens group) in the optical axis direction.

[0408] The first driver (542) can apply a first driving signal to the first coil (120A), apply a second driving signal to the second coil (120B), and control the first and second driving signals.

[0409] The second lens assembly (622) can be moved in the first direction by the interaction between the first coil (120A) to which the first driving signal is applied and the first magnet (130A), and the third lens assembly (624) can be moved in the first direction by the interaction between the second coil (120B) to which the second driving signal is applied and the second magnet (130B).

[0410] The second driver (260) can tilt or rotate the OIS moving part (e.g., optical member (40)) by a predetermined angle about the second axis and / or the third axis. In addition, the second driver (260) can store a correction value and control the tilt of the optical member (40) using the correction value.

[0411] The second driver (260) can apply a first OIS driving signal to the first OIS coil (230A, 230B). By interaction between the first OIS coil (230A, 230B) to which the first OIS driving signal is applied and the first OIS magnet (31A, 31B), the OIS moving part (e.g., holder (30)) can be rotated by a preset angle around the second axis (e.g., X-axis) as the rotation axis.

[0412] Additionally, the second driver (260) can apply a second OIS driving signal to the second OIS coil (230C). By interaction between the second OIS coil (230C) to which the second OIS driving signal is applied and the second OIS magnet (32), the OIS moving part (e.g., holder (30)) can be rotated by a preset angle around the third axis (e.g., Y axis) as the rotation axis.

[0413] By the movement of the holder (30) coupled with the optical member (40), the path of light incident on the optical member (40) can be moved on a plane (e.g., XY plane) perpendicular to the first axis (optical axis or Z axis), thereby moving the image formed on the image sensor (540) in the X-axis direction and / or the Y-axis direction. For example, the optical member (40) can be tilted with respect to the X-axis or the Y-axis or can be rotated by a predetermined angle.

[0414] That is, by controlling the movement of the holder (30), the embodiment can correct blurring of an image or shaking of a video caused by shaking of the camera device when taking an image or shooting a video due to the user's hand shaking.

[0415] For example, each of the first driver (542) and the second driver (260) may include at least one of an analog-to-digital converter, an amplifier, a PID controller, or a memory.

[0416] The first driver (542) can receive the first output signal of the first position sensing unit (71) of the first position sensor unit (170) and the second output signal of the second position sensing unit (72) of the first position sensor unit (170).

[0417] The first driver (542) can generate a first code value according to the result of analog-to-digital conversion of the first output signal received from the first position sensing unit (71), and control the first driving signal applied to the first coil (120A) based on the result of comparing the generated first code value with the first target value. For example, the first target value may be a reference code value corresponding to the target zoom position of the second lens assembly (622).

[0418] In addition, the first driver (542) can generate a second code value according to the result of analog-to-digital conversion of the second output signal received from the second position sensing unit (72), and control the second driving signal applied to the second coil (120B) based on the result of comparing the generated second code value with the second target value. For example, the second target value may be a reference code value corresponding to the target focus position of the third lens assembly (624).

[0419] The reference code value (or data) for the output of each of the first and second position sensing units (71, 72) may be preset through calibration and stored in the memory of the first driver (542). In another embodiment, the reference code value may be stored in the memory unit (760) of the optical device (200A).

[0420] The second driver (260) can receive the first output signal of the first OIS position sensor (240A, 240B) of the second position sensor unit (240) and the second output signal of the second OIS position sensor (240C).

[0421] The second driver (260) can generate a third code value according to the result of analog-to-digital conversion of the first output signal of the received first OIS position sensor (240A, 240B), and control the first driving signal applied to the first OIS coil (230A, 230B) of the second driving unit (70) based on the result of comparing the generated third code value with the third target value.

[0422] Additionally, the second driver (260) can generate a fourth code value according to the result of analog-to-digital conversion of the second output signal of the received second OIS position sensor (240C), and control a second driving signal applied to the second OIS coil (230C) based on the result of comparing the generated fourth code value with the fourth target value.

[0423] For example, the third target value may be a reference code value (or data) regarding the output of the first OIS position sensor (240A, 240B) corresponding to the target second-axis (X-axis) tilting position of the OIS movable part of the second actuator (320). Also, for example, the fourth target value may be a reference code value (or data) regarding the output of the second OIS position sensor (240C) corresponding to the target third-axis (Y-axis) tilting position of the OIS movable part of the second actuator (320). The reference code values ​​(or data) regarding the outputs of each of the first OIS position sensors (240A, 240B) and the second OIS position sensor (240C) may be preset through calibration and stored in the memory of the second driver (260). In another embodiment, the reference code values ​​may also be stored in the memory unit (760) of the optical device (200A).

[0424] The first position sensor unit (170) included in the first actuator (310) can detect the displacement of the second lens assembly (622) and output a first output signal based on the detection result. In addition, the first position sensor unit (170) can detect the displacement of the third lens assembly (624) and output a second output signal based on the detection result.

[0425] Each of the first and second sensors (240A, 240B) of the first OIS position sensor can detect displacement of the holder (30) in the third axis direction and output an output signal according to the detected result.

[0426] Alternatively, in another embodiment, the input terminals of the first and second sensors (240A, 240B) may be connected in parallel, the output terminals of the first and second sensors (240A, 240B) may be connected in series, and one output signal may be output from both ends of the serially connected output terminals.

[0427] The second OIS position sensor (240C) can detect displacement of the holder (30) in the second axis direction and output an output signal according to the detected result.

[0428] For example, the focus of the camera device (200) can be accurately adjusted based on the target position of the second lens assembly (622) and the target position of the third lens assembly (624).

[0429] The image sensing unit (330) may include an image sensor (540) that converts light reflected from a subject into an electrical signal. For example, the image sensor (540) may include a light receiving unit that receives light and converts it into an electrical signal, and an analog-to-digital converter that converts the converted electrical signal into a digital signal. In addition, for example, the image sensor (540) may further include an image signal processor that performs signal processing on the digital signal.

[0430] The camera device (200) may further include a temperature sensor (566) for temperature compensation.

[0431] The temperature sensor (566) can output temperature information based on the results of measuring the temperature of the camera device (200).

[0432] Temperature information of the temperature sensor (566) can be used for temperature compensation for the focusing operation of the third lens assembly (624). For example, a compensation value corresponding to the temperature information can be stored in the memory (226B) of the first driver (542).

[0433] For example, since the second lens assembly (622) responsible for zooming moves according to the magnification set by the user, temperature compensation for the third lens assembly (624) responsible for auto-focusing can be performed while the position of the second lens assembly (622) is fixed (or under certain conditions).

[0434] Fig. 20 is a flowchart showing a control method of a control unit (810) for performing zooming and AF or image stabilization of a camera device according to an embodiment.

[0435] Referring to FIG. 20, the control unit (810) obtains a correction value for correcting or compensating for the deviation (or tilt) of the optical axis (or optical center) caused by the misalignment (or tilt) of the lens assembly (or lens) (S110). For example, in FIG. 20, the control unit (810) may be the second driver (260). The correction value may also be expressed as a “compensation value” or a “setting value.”

[0436] Here, the meaning of 'acquire' can include 'receive,' 'extract,' 'select,' or 'read.'

[0437] For example, the correction value may be related to the initial position of the optical member (40) for correcting the misalignment of the lens assembly, e.g., the center of the fixed lens group, the center of the movable lens group. For example, the correction value may be a data value (or code value) corresponding to the output of the OIS position sensor (240; first OIS position sensors (240A and 240B), and second OIS position sensor (240C)) that detects the displacement of the optical member (40) for setting the initial position of the optical member (40).

[0438] For example, the correction value may include a data value regarding the output of the first position sensor (240A, 240B) corresponding to the initial position of the optical member (40). In addition, the correction value may include a data value regarding the output of the second position sensor (240C) corresponding to the initial position of the optical member (40).

[0439] Next, the control unit (810) uses the correction value to move the OIS moving unit (e.g., holder (30)) of the OIS actuator (320) to correct the deviation (or tilt) of the optical axis (or optical center) caused by the misalignment of the lens assembly (or lens) (S120).

[0440] Next, in a state where the deviation (or tilt) of the optical axis (or optical center) is corrected, a zoom / auto focus operation or a shake correction operation is performed (S130).

[0441] The correction value may be stored in a memory included within the control unit (810), and the control unit (810) may obtain the correction value from the built-in memory. In another embodiment, the correction value may be obtained from a memory provided separately from the control unit (810).

[0442] For example, the deviation of the optical center or optical axis may refer to the degree to which the optical axis (or optical center) of the lens assembly (or lens) is twisted or tilted with respect to a reference position. For example, the reference position may be a preset position (or coordinate value) at which the optical axis (or optical center) of the lens assembly (or lens) is aligned with the imaging area of ​​the image sensor (540) when there is no twist of the lens assembly (or lens).

[0443] For example, the reference position (or preset coordinate value) may be the center (or coordinate value of the center, e.g., origin (0,0)) of the imaging area of ​​the image sensor (540).

[0444] For example, the deviation (or tilt amount) may be the difference between the coordinate values ​​of a first position in the imaging area of ​​the image sensor (540) where the optical axis (or optical center) of the twisted or tilted lens assembly (or lens) is aligned and a preset coordinate value. For example, a correction value may be generated based on the deviation.

[0445] Ideally, when there is no misalignment (or tilt) of the lens assembly (or lens), the optical axis (or optical center) of the lens assembly can be aligned with the reference position (or preset coordinate value) of the image sensor (540). However, when there is misalignment (or tilt) of the lens assembly, the optical axis (or optical center) of the lens assembly (or lens) may not be aligned with the reference position of the image sensor (540), but may be aligned with a first position in the imaging area of ​​the image sensor (540) that is not the reference position. For example, the amount of deviation or tilt may be a difference between the reference position and the first position. For example, the deviation may be a difference in coordinate values ​​between the reference position and the first position.

[0446] There may be various causes for distortion of the lens assembly. For example, the cause may be a shape of the lens barrel (29A, 39A) of the lens assembly, a shape (e.g., degree of warpage) of the guide groove (212A, 212B), or a center distortion due to the installation of the lenses included in the lens assembly. In particular, a zoom camera device may include two or more lens assemblies, and since the stroke or movement distance of the lens assembly (e.g., zoom lens) in the optical axis direction is long, distortion of the lens due to the movement of the lens assembly may occur.

[0447] For example, the tilt (or tilt) may include at least one of a static tilt and a dynamic tilt. The static tilt may refer to a tilt of the lens assembly (or lens) at a specific position of the lens assembly (or lens) (e.g., a zoom position or a focus position). The dynamic tilt may refer to a tilt of the lens assembly (or lens) at any two specific positions of the lens assembly (or lens) (e.g., two zoom positions or two focus positions).

[0448] For example, the lens assembly that is the target of the above-described distortion may include at least one of the second lens assembly (622) (or the second lens group) and the third lens assembly (624) (or the third lens group). In another embodiment, the lens assembly that is the target of the distortion may further include the first lens assembly (622).

[0449] Additionally, for example, the object of the distortion may include at least one of a lens group, a lens, or a lens barrel included in a lens assembly.

[0450] For example, ideally, when there is no distortion (or tilt) of the lens assembly (or lens), data values ​​corresponding to the outputs of the first position sensor (240A, 240B) and the second position sensor (240C) can be set so that the initial position of the optical member (40) is located at a preset position. For example, the preset position can be a position where the center of the first sensor (240A) and the center of the first magnet unit (31A) are aligned with or overlap each other, a position where the center of the second sensor (240B) and the center of the second magnet unit (31B) are aligned with or overlap each other, and a position where the center of the third sensor (240C) and the center of the third magnet unit (31C) are aligned with or overlap each other.

[0451] For example, at the initial position of the optical member (40) controlled by the correction value, the center of each of the first to third sensors may not be aligned with or overlap the center of a corresponding one of the first to third magnet units.

[0452] In another embodiment, when there is no misalignment (or tilt) of the lens assembly (or lens), the preset position may be set to data values ​​corresponding to the outputs of the first position sensor (240A, 240B) and the second position sensor (240C) with respect to a specific position of the optical member (40) regardless of the misalignment (or tilt) of the lens assembly (or lens).

[0453] The control unit (810) can control the tilt of the optical member (40) using the compensation value, perform a shake correction operation, or perform a zoom and / or autofocus operation.

[0454] For example, the control unit (810) can set the initial position of the optical member (40) by controlling the tilt of the optical member (40) using the compensation value, and can perform a shake correction operation that controls the movement of the OIS moving unit while the tilt of the optical member (40) is controlled, or can perform a zoom operation or / and an auto focus operation for the second and third lens assemblies (622, 624).

[0455] Figure 21 illustrates an embodiment of a method for generating a correction value to compensate for deviation due to lens misalignment.

[0456] Referring to FIG. 21, the control unit (810) moves the second lens assembly (622), which is a zoom lens, to a first zoom position (S210). For example, the first zoom position may be a tele position. In another embodiment, the first zoom position may be a wide position.

[0457] For example, the wide position may be a position corresponding to the lowest magnification among the implementable zoom magnifications of the camera device (200), and the tele position may be a position corresponding to the highest magnification among the implementable zoom magnifications of the camera device (200).

[0458] For example, the wide position may be a 3x zoom position, and the tele position may be a 5x zoom position, but is not limited thereto. Information regarding the first zoom position may be stored in the control unit (810, 780).

[0459] In another embodiment, the first zoom position may be a position corresponding to an intermediate magnification between the tele position and the wide position.

[0460] Next, the control unit (810) moves the third lens assembly (624), which is a focus lens, from the first zoom position to focus on the subject (S220).

[0461] Next, the control unit (810) drives the second actuator (320) to move the OIS moving unit (e.g., holder (30)) to the initial position (S230).

[0462] For example, the initial position of the OIS moving part (e.g., holder (30)) may be a position such that the emission surface (8b) of the optical member (40) is parallel to the imaging area of ​​the image sensor (540).

[0463] Or, for example, if the initial position of the OIS moving part (e.g., holder (30)) is not ideally aligned with the lens assembly so that the optical axis of the lens assembly is aligned with a preset position of the image sensor (540) (e.g., the center of the exit surface (8b) of the optical member (40) may be the center of the lens assembly (or a position where the optical axes of the lens assemblies are aligned with each other). Alternatively, the initial position of the OIS moving part (e.g., holder (30)) may be a position where the exit surface (8b) of the optical member (40) and the optical axis of the lens assembly are perpendicular to each other under the same conditions.

[0464] Next, the control unit (810) measures the deviation (or tilt amount) caused by the misalignment (or tilt) of the lens assembly (or lens) from the initial position of the OIS moving unit (e.g., holder (30)) (S240).

[0465] For example, the deviation from the initial position of the OIS moving part can be measured according to the definition of deviation described in step S110. The deviation measurement is described later in FIG. 22.

[0466] Next, the control unit (810) stores a correction value corresponding to the measured deviation (or tilt amount) (S250). For example, the correction value may be stored in the memory of the second driver (260).

[0467] In another embodiment, the correction value may be stored in the memory of the first driver (542). Or, in another embodiment, it may be stored in the memory or AP (Application Processor) of the control unit (780) of the optical device (200A).

[0468] Figure 22 shows the correction of deviations due to misalignment of the lens assembly or lens and deviations due to movement of the OIS moving part.

[0469] Fig. 22 (a) shows an ideal state in which no distortion occurs in the lens assembly or lens. In Fig. 22 (a), the optical center (or optical axis (OA)) of the lens assembly (or lens) can be aligned with the center (540A) of the imaging area of ​​the image sensor (540), and the image (48A) of the subject (48) detected in the imaging area of ​​the image sensor (540) can be displayed as the original image of the subject (48). For example, the center (48C) of the image (48A) of the subject (48) can be aligned with the center (540A) of the image sensor (540).

[0470] Figure 22 (b) illustrates a case where a misalignment has occurred in the lens assembly or lens. In Figure 22 (b), the optical center (or optical axis (OA1)) of the lens assembly (or lens) is not aligned with the center (540A) of the image sensor (540), and as a result, the center (48C) of the image (48B) of the subject (48) detected by the image sensor (540) due to misalignment of the lens assembly or lens does not coincide with the center (540A) of the image sensor (540), and may be positioned away from the center (540A) of the image sensor (540). This may be referred to as misalignment or tilt of the optical center of the lens assembly (or lens).

[0471] Due to this, the image (48B) of the subject (48) in Fig. 22 (b) may be distorted and the resolution may be reduced.

[0472] For example, the deviation may be the difference between the coordinate values ​​of the center (540A) of the imaging area of ​​the image sensor (540) and the coordinate values ​​of the point (48C) where the misaligned optical axis (OA1) meets or is aligned with the imaging area of ​​the image sensor (540). For example, the deviation may be the difference between the coordinate values ​​of the center (540A) of the imaging area of ​​the image sensor (540) and the coordinate values ​​of the center (48C) of the subject (48B).

[0473] In (c) of FIG. 22, by moving or rotating or tilting the optical member (40) of the OIS moving unit by a preset angle based on a correction value corresponding to the deviation, the point where the optical axis and the imaging area of ​​the image sensor (540) meet can be aligned with the center (540A) of the image sensor (540). As a result, the center of the image of the subject (48) detected by the image sensor (540) can be aligned with the center of the image sensor, and distortion of the image of the subject (48) caused by misalignment of the lens assembly (or lens) can be prevented, and the resolution can be improved.

[0474] In the embodiment of FIG. 21, the deviation measured when the second lens assembly (622) is in the tele position is also utilized at other zoom positions of the second lens assembly (622). Of course, the deviation may be different when the second lens assembly (622) is in other zoom positions, but since the tele position corresponds to a high magnification, it is greatly affected by image distortion due to deviation caused by misalignment of the lens assembly (or lens).

[0475] Here, the correction value may be a value for moving the optical member (40) of the OIS moving part of the second actuator (320) to the target position or rotating it by a preset angle in order to correct or compensate for the misalignment of the lens assembly (or lens).

[0476] Specifically, the correction value may be a value for rotating or tilting the optical member (40) to the target position in order to align the point where the optical axis (or optical center) described later and the imaging area of ​​the image sensor (540) meet with the center (540A) of the image sensor (540).

[0477] In the embodiment, since the OIS moving part is rotated by feedback driving using the OIS position sensor part (240), the correction value may be a code value (or data value) regarding the output of the OIS position sensor part (240) corresponding to the target position. For example, the correction value may be an analog-to-digital converted value of the output of the OIS position sensor part (240) at the target position.

[0478] Specifically, the correction value may include a first correction code value (first data value) regarding the output of the first OIS position sensor (240A, 240B) corresponding to the target position and a second correction code value (second data value) regarding the output of the second OIS position sensor (240C) corresponding to the target position.

[0479] For example, the deviation may include an x-axis deviation in the x-axis direction and a y-axis deviation in the y-axis direction. For example, the x-axis deviation may be the difference between the x-coordinate value of the center (540A) and the x-coordinate value of the point (48C), and the y-axis deviation may be the difference between the y-coordinate value of the center (540A) and the y-coordinate value of the point (48C).

[0480] For example, the first and second correction code values ​​may be set based on the x-axis deviation and the y-axis deviation. For example, the first correction code value may be set based on one of the x-axis deviation and the y-axis deviation, and the second correction code value may be set based on the other of the x-axis deviation and the y-axis deviation.

[0481] The control unit (810), for example, the second driver (260), can receive the output signal of the OIS position sensor (240) and control the driving signal applied to the OIS coil (230) using the code value (or data value) and the correction value according to the result of analog-to-digital conversion of the received output signal. The control unit (810) can move the OIS moving unit or the optical member (40) to the target position by controlling the driving signal applied to the OIS coil (230), thereby allowing the embodiment to correct the deviation (or tilt) of the optical center caused by misalignment of the lens assembly (or lens), prevent distortion of the image, and improve resolution.

[0482] For example, the control unit (810) can control the driving signal applied to the OIS coil (230) so that the code value (or data value) according to the result of the analog-to-digital conversion converges to the correction value.

[0483] For example, the control unit (810), for example, the second driver (260), can receive the first output signal of the first OIS position sensor (240A, 240B) and the second output signal of the second OIS position sensor (240C), and control the driving signal applied to the OIS coil (230) so that the code values ​​(or data values) according to the result of analog-to-digital conversion of each of the received first and second output signals converge to the first and second correction code values.

[0484]

[0485] Fig. 23 is a flowchart showing a control method of a control unit (810) for performing zooming and AF or image stabilization of a camera device according to another embodiment.

[0486] Referring to FIG. 23, zoom ratio information (or zoom position information) is acquired (S310). The zoom ratio information may be determined by a user's selection or input, and the control unit (810) may receive the zoom ratio information determined by the user. For example, the zoom ratio information may be received from the control unit (780) of the optical device (200A).

[0487] The control unit (810), for example, the second driver (260), obtains a correction value for correcting or compensating for the distortion of the lens corresponding to the zoom ratio information (S320).

[0488] Next, the OIS actuator is driven using the correction value to correct the deviation of the optical center (S330).

[0489] Next, in a state where the deviation of the optical axis (or optical center) is corrected, a zoom / auto focus operation or a shake correction operation is performed at a zoom position according to the acquired zoom magnification information (S340).

[0490]

[0491] Figure 24 is a drawing to explain matters to be considered when generating a correction value to compensate for deviation caused by lens misalignment.

[0492] In Fig. 24, the OIS mechanic stroke refers to an image area that can be recognized by the image sensor through OIS operation. The image center (Image Center (●)) is the center of the image recognized by the image sensor and is located at the center of the x-axis and the y-axis. ■ in the OIS mechanic stroke refers to the chart center at wide magnification. △ in the mechanic stroke refers to the chart center at tele magnification. Rated stroke @ Wide refers to an operating area that must be secured at wide magnification. Rated stroke @ Tele refers to an operating area that must be secured at tele magnification. Mechanic End refers to a physical area where the optical member (40) can be driven.

[0493] Referring to Fig. 24(a), when the optical member (40) is in the correct position (①), the chart center (■) in wide magnification is located at the upper left with respect to the image center (●), so it is a tilting state requiring chart OC (Optical Center) compensation. Referring to Fig. 24(b), when the optical member (40) is tilted clockwise (①→②) and OC compensation is performed, the chart center (■) in wide magnification moves to the lower right, so that the image center (●) and the chart center (■) in wide magnification match.

[0494] Hereafter, referring to Fig. 24(b), the chart center (■) at wide magnification and the chart center (△) at tele magnification do not match, so when changing the zoom magnification from wide magnification to tele magnification, the chart center (△) at tele magnification must be aligned with the image center (●). When the optical member (40) is tilted clockwise again (②→③) to compensate for the OC shift, the chart center (△) at tele magnification moves to the lower right, so that the image center (●) and the chart center (△) at tele magnification match.

[0495] At this time, the optical member (40) collides with the physical area (Mechanical End) that the optical member (40) can drive, which may cause malfunction or oscillation. Here, tilting of the optical member may mean rotation based on three dimensions.

[0496] As shown in Fig. 24, when the tilting direction of the optical member (40) is the same during OC compensation and OC Shift compensation, the tilting space of the optical member (40) must be sufficiently secured. However, since there is a limit to increasing the size of the camera module due to the physical space in which the optical member (40) is placed and the various specifications of the mobile phone in which the camera module is placed, there is also a limit to expanding the OIS Mechanic stroke.

[0497] FIGS. 25 and 26 are diagrams for explaining a process of generating OC compensation and OC Shift correction values ​​considering the physical limitations of the OIS mechanic stroke. In FIGS. 25 and 26, the outermost rectangular area is an image chart area recognized by the image sensor, and the centers of the x-axis and y-axis may correspond to the image center. The rectangular area of ​​the solid line within the outermost rectangular area means the chart area (or image area) in tele magnification, and may be an area corresponding to ±2.4 deg based on the chart center (■) in tele magnification. The rectangular area of ​​the dotted line within the outermost rectangular area means the chart area (or image area) in wide magnification, and may be an area corresponding to ±2.4 deg based on the chart center (□) in wide array. This is merely an example, and the size of the chart area in tele magnification may be different from the size of the chart area in wide magnification.

[0498] First, a correction value is generated to move the chart center of the magnification that is farthest from the image center among the chart centers of the wide magnification and the tele magnification to the image center first. Then, a correction value is generated to move the chart centers of the remaining magnifications to the image center. By generating the correction value in this way, OC Shift compensation can be performed by tilting the optical member (40) in different tilting directions when changing the zoom magnification from the wide magnification to the tele magnification from the initial operation.

[0499] Figure 25(a) is a chart before OC compensation, and the chart center (□) of the wide magnification is located further away from the image center than the chart center (■) of the tele magnification. When the image chart area is viewed in the coordinate system of the x-axis and y-axis, the chart center (□) of the wide magnification is located approximately at (-0.9, -1.3), and the chart center (■) of the tele magnification is located approximately at (-0.6, -0.7).

[0500] As shown in Fig. 25(b), a correction value is generated to move the center of the wide magnification chart (□) located far from the image center to the image center. At this time, the optical member (40) can be seen to tilt in the (+,+) direction to move the center of the wide magnification chart (□) in the (+,+) direction.

[0501] Thereafter, as shown in Fig. 25(c), a correction value is generated to move the chart center (■) of the tele magnification to the image center. At this time, the optical member (40) can be seen to tilt in the (-,-) direction to move the chart center (■) of the tele magnification to the (-,-) direction.

[0502]

[0503] Figure 26(a) is a chart before OC compensation, and the chart center (■) of the tele magnification is located further away from the image center than the chart center (□) of the wide magnification. When the image chart area is viewed in the coordinate system of the x-axis and y-axis, the chart center (□) of the wide magnification is located approximately at (0.6, 0.4), and the chart center (■) of the tele magnification is located approximately at (1.3, 1.4).

[0504] As shown in Fig. 26(b), a correction value is generated to move the chart center (■) of the tele magnification, which is located far from the image center, to the image center. At this time, the optical member (40) can be seen to tilt in the (-,-) direction to move the chart center (■) of the tele magnification in the (-,-) direction.

[0505] Thereafter, as shown in Fig. 26(c), a correction value is generated to move the chart center (□) of the wide magnification to the image center. At this time, the optical member (40) can be seen to tilt in the (-,-) direction to move the chart center (□) of the wide magnification to the (-,-) direction.

[0506] That is, if a correction value is first generated with respect to the center of the chart at a distant location based on the image center, OC shift compensation can be performed by tilting the optical member (40) in different directions, thereby securing a margin within the physical area for tilting the optical member (40).

[0507]

[0508] FIG. 27 is a drawing for explaining a method for generating correction values ​​for OC compensation and OC Shift compensation described in FIGS. 25 and 26 and another method.

[0509] Referring to Fig. 27(a), first, a tilting correction value is generated for the optical element (40) so that the chart center of the mid magnification between the wide magnification and the tele magnification is at the image center of the image chart area. Referring to Fig. 27(b), a correction value is generated so that the chart centers of the wide magnification and the tele magnification are at the image center. At this time, a correction value can be generated so that the chart centers of other magnifications besides the wide magnification and the tele magnification are at the image center.

[0510] Therefore, since the chart center of the wide magnification and the chart center of the tele magnification are in different directions based on the chart center of the mid magnification, the optical member (40) can compensate for OC Shift by tilting in different directions.

[0511]

[0512] Figure 28 illustrates a method for generating a correction value to correct for deviation caused by lens misalignment corresponding to zoom ratio information.

[0513] Referring to FIG. 28, the control unit (810) sets the first to Nth (N>1 natural number) sampling points for the zoom position of the second lens assembly (622) corresponding to the zoom magnification information (S410).

[0514] For example, the zoom factor information may be the M magnification, where M may be a positive rational number.

[0515] For example, the zoom ratio information may be a first magnification, a third magnification, a fifth magnification, etc. For example, the sampling point may be a zoom position of the second lens assembly (622) that matches the zoom ratio information. For example, the sampling point may include a tele position and a wide position.

[0516] Next, the control unit (810) drives the first actuator (310) to move the second lens assembly (622) to the first sampling point (S420).

[0517] Next, the control unit (810) drives the first actuator (310) to move the third lens assembly (624) to focus on the subject (S430).

[0518] Next, the control unit (810) drives the second actuator (320) to move the OIS moving unit (e.g., holder (30)) to the initial position (S440). The initial position of the OIS moving unit may be applied as described in FIG. 21.

[0519] Next, the control unit (810) measures the deviation (or tilt amount) due to the misalignment (or tilt) of the lens assembly (or lens) from the initial position of the OIS moving unit (e.g., holder (30)) (S450). The description in S240 may be applied to S450 or applied analogically.

[0520] Next, the control unit (810) stores a correction value corresponding to the measured deviation (or tilt amount) (S460). The description in S250 may be applied to S460 or applied analogically.

[0521] Next, the control unit (810) determines whether the current sampling point is the same as the Nth sampling point (S470).

[0522] Next, if the current sampling point is not the same as the Nth sampling point, the control unit (810) increases the sampling point by 1 (S475) and moves the second lens assembly (622) to the increased sampling point (S476).

[0523] Next, S430 to S470 are repeatedly performed. Next, if the current sampling point is the same as the N sampling point, the control unit (810) generates and stores a correction equation using the stored correction values ​​corresponding to the first to Nth sampling points (S480).

[0524] Fig. 29 shows the deviation (or tilt amount) corresponding to the sampling points (ZP1 to ZP4) obtained by the method according to the embodiment of Fig. 28. In Fig. 31, ZP1 may be a wide position, and ZP4 may be a tele position. In Fig. 31, the number of sampling points may be four, but in other embodiments, it may be two or more.

[0525] Referring to FIG. 29, deviations (K1 to K4) corresponding to each sampling point (ZP1 to ZPN, N=4) can be obtained according to the method according to the embodiment of FIG. 28.

[0526] The control unit (810, 780) can interpolate deviations (K1 to K4) corresponding to sampling points (ZP1 to ZP4) using an interpolation method, and obtain, calculate, or produce an interpolation formula or interpolation data regarding the deviation based on the interpolation result. The deviation at zoom positions other than the sampling points (ZP1 to ZPN, N=4) can be estimated by the interpolation formula or interpolation data.

[0527] For example, the interpolation method may include at least one of various interpolation methods. For example, the interpolation method may include linear interpolation, polynomial interpolation, spline interpolation, exponential interpolation, log-linear interpolation, Lagrange interpolation, Newton interpolation, and bilinear interpolation.

[0528] For example, two deviations (e.g., K1 and K2) corresponding to two adjacent sampling points (e.g., ZP1 and ZP2) can be interpolated, and a first interpolation formula can be obtained according to the interpolation result. In the section between ZP1 and ZP2, deviations for zoom positions between ZP1 and ZP2 can be estimated using the first interpolation formula. In Fig. 31, the zoom positions can include a first section between ZP1 and ZP2, a second section between ZP2 and ZP3, and a third section between ZP3 and ZP4. An interpolation formula corresponding to each section can be obtained, calculated, or produced, and a deviation corresponding to each section can be obtained, calculated, estimated, or produced using this interpolation formula.

[0529] Figure 29 shows a case where the deviation increases as the magnification increases from low to high.

[0530] In other embodiments, the deviation may decrease from low to high magnification. In other embodiments, the deviation may increase in some sections, decrease in other sections, or remain constant in other sections.

[0531] In FIG. 21, the control unit (810) stores a single correction value, but in FIG. 28, the control unit (810) can store correction values ​​for consecutive zoom positions. For example, the correction values ​​obtained in FIG. 28 can be defined by an algorithm or a mathematical formula and stored in the control unit (810). The control unit (810) can obtain a correction value corresponding to the zoom position or zoom magnification information of the second lens assembly (622) by the algorithm or the mathematical formula.

[0532]

[0533] Figure 30a shows an example of providing information about zoom position and focus position (AZP) and correction values ​​(OCS).

[0534] Referring to FIG. 30A, the control unit (780) of the optical device (200A) can store information (AZP) and correction values ​​(OSC) regarding the zoom position (or zoom magnification) and focus position. The control unit (780) may be an AP (Application Processor), but is not limited thereto.

[0535] The optical device (200A) may include a memory (226A) for storing information (AZP) and correction values ​​(OSC) regarding the zoom position (or zoom ratio) and focus position. The memory (226A) may be included in the control unit (780) or may be provided separately from the control unit (780).

[0536] The control unit (780) of the optical device (200A) can transmit a correction value (OCS) to the second driver (260) of the camera device (200). The second driver (260) can control the movement or rotation of the OIS moving unit (holder (30) and optical member (40)) using the correction value received from the control unit (780).

[0537] For example, the second driver (260) can control the driving signal applied to the OIS coil (230) of the second actuator (320) using the correction value received from the control unit (780).

[0538] The control unit (780) of the optical device (200A) can transmit zoom position information (or zoom magnification) and focus position information to the first driver (542) of the camera device (200). The first driver (542) can control the movement of the second lens assembly (622) using the zoom position information (or zoom magnification) received from the control unit (780), and can control the movement of the third lens assembly (624) using the focus position information.

[0539] For example, the first driver (542) can control the first driving signal applied to the first coil (120A) using zoom position information (or zoom magnification), and can control the second driving signal applied to the second coil (120B) using focus position information.

[0540] Using a protocol for data communication, such as I2C communication, the control unit (780) can transmit and receive data, such as zoom ratio information (or zoom position information) and focus position information, to and from each of the first driver (542) and the second driver (260).

[0541] Figure 30b shows another embodiment of providing information and correction values ​​regarding zoom position and focus position.

[0542] Referring to FIG. 30B, the entity storing the zoom position information (or zoom magnification), focus position information, and correction value (OSC) may be the first driver (542). The first driver (542) may include a memory (226B) for storing the zoom position information (or zoom magnification), focus position information, and correction value (OSC).

[0543] The first driver (542) can control the movement of the second lens assembly (622) using the zoom position information (or zoom magnification) stored in the memory (226B), and can control the movement of the third lens assembly (624) using the focus position information stored in the memory (226B). The function of the first driver (542) can be applied or analogized to the content described in FIG. 32A.

[0544] The first driver (542) can transmit a correction value (OSC) to the control unit (780), and the control unit (780) can transmit the correction value (OSC) received from the first driver (542) to the second driver (260). The function of the first driver (260) can be applied or analogized as described in FIG. 30a.

[0545] Figures 30c and 30b illustrate another embodiment of providing information and correction values ​​regarding zoom position and focus position.

[0546] Referring to FIG. 30c, the entity storing the zoom position information (or zoom ratio) and the focus position information may be the first driver (542), and the entity storing the correction value (OSC) may be the second driver (260).

[0547] For example, the first driver (542) may include a memory (226B) for storing zoom position information (or zoom ratio) and focus position information. Additionally, the second driver (260) may include a memory (226C) for storing a correction value (OSC).

[0548] The function of the first driver (542) may be applied or analogized to the content described in FIG. 32b. The second driver (260) may control the movement or rotation of the OIS moving part (holder (30) and optical member (40)) using the correction value (OSC) stored in the memory (226C). The function of the second driver (260) may be applied or analogized to the content described in FIG. 30a.

[0549] In FIG. 30c, since the zoom position information (or zoom ratio) and focus position information are stored in the first driver (542) and the correction value (OSC) is stored in the second driver (260), the driving speed at which the first and second drivers (542, 260) drive the first and second actuators (310, 320) can be fast.

[0550] FIG. 30d illustrates another embodiment of providing information and correction values ​​regarding zoom position and focus position.

[0551] Referring to FIG. 30d, the entity storing information (AZP) regarding the zoom position and focus position, and the correction value (OSC) may be a second driver (260). The second driver (260) may include a memory (226C) for storing zoom position information (or zoom magnification), focus position information, and the correction value (OSC).

[0552] The second driver (260) can transmit information (AZP) regarding the zoom position and focus position to the control unit (780), and the control unit (780) can transmit information (AZP) regarding the zoom position and focus position received from the second driver (260) to the first driver (260). The function of the first driver (260) can be applied or analogized as described in FIG. 30a.

[0553] The second driver (260) can control the movement or rotation of the OIS moving part (holder (30) and optical member (40)) using the correction value stored in the memory (226C). The function of the second driver (260) can be applied or analogized to the content described in FIG. 32a.

[0554] If the optical center of the lens assembly (or lens) does not match the center of the image sensor (540) due to misalignment of the lens assembly (or lens), distortion occurs in the image detected by the image sensor (540), which may result in a reduction in the resolution of the camera device. In an embodiment, by controlling the movement (or rotation) of the OIS moving part (or optical member (40)), the misalignment or deviation of the optical center due to misalignment of the lens assembly (or lens) can be corrected or compensated, thereby improving the resolution of the camera device.

[0555] 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 device according to the embodiment may be a mobile phone, a smart phone, a portable smart device, 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.

[0556] Fig. 31 shows a perspective view of an optical device (200A) according to an embodiment, and Fig. 32 shows a configuration diagram of the optical device (200A) shown in Fig. 31.

[0557] Referring to FIGS. 31 and 32, the optical device (200A, hereinafter referred to as a portable “terminal”) 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).

[0558] The body (850) illustrated in Fig. 31 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.

[0559] 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).

[0560] 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).

[0561] 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.

[0562] The camera (721) may include a camera device (200) according to an embodiment.

[0563] 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.

[0564] 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).

[0565] 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.

[0566] 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.

[0567] 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).

[0568] 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.

[0569] 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.

[0570] 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.

[0571] 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.

[0572] The control unit (780) may be equipped with a multimedia module (781) for multimedia playback. The multimedia module (781) may be implemented within the control unit (780) or may be implemented separately from the control unit (780).

[0573] 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.

[0574] 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).

[0575] The camera device (200) may be arranged on the body (850) of the portable terminal (200A) such that the incident surface (8A) of the optical member (40) is arranged parallel to one side (e.g., the back or front) of the body (850). For example, the second actuator (320), the first actuator (310), and the image sensing unit (330) may be arranged from the top to the bottom of the body (850) of the portable terminal (200A). In another embodiment, the camera device may be rotated 90 degrees in the arrangement of FIG. 31. That is, the second actuator (320), the first actuator (310), and the image sensing unit (330) may be arranged in the direction from the first long side to the second long side of the body (850) of the portable terminal (200A). Through this arrangement, the embodiment can reduce spatial constraints when mounting a camera device (200) on a portable device (200A) and improve the degree of freedom in the design of the portable device.

[0576] 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.

[0577] Those skilled in the art will appreciate that the present invention can be implemented in modified forms without departing from the essential characteristics of the above-described description. Therefore, the disclosed methods should be considered illustrative rather than restrictive. The scope of the present invention is set forth in the claims, not the foregoing description, and all differences within the scope equivalent thereto should be construed as being encompassed by the present invention.

Claims

1. A lens assembly including a fixed lens group and a movable lens group movable in the first axis direction; An image sensor that detects light passing through the fixed lens group and the moving lens group; An optical member that irradiates light to the lens assembly and is tiltable around a second or third axis that is perpendicular to the first axis; A control unit is provided with a correction value for compensating for misalignment of the optical axis of the lens assembly corresponding to zoom magnification information for the moving lens group. The above control unit controls the tilt of the optical member based on the above correction value, The zoom magnification for the above moving lens group includes the lowest magnification, the highest magnification, and an intermediate magnification between the lowest magnification and the highest magnification, A camera device wherein the above correction value sets the initial position of the optical member based on the intermediate magnification and relates to the tilt amount of the optical member for the lowest magnification and the highest magnification.

2. In paragraph 1, A camera device wherein the above correction value relates to the initial position of the optical member for correcting misalignment between the center of the fixed lens group and the center of the first lens group.

3. In paragraph 1, A camera device in which the control unit performs a zoom or auto focus operation by moving the lens assembly in the direction of the optical axis while controlling the tilt of the optical member using the compensation value.

4. In paragraph 1, A camera device, wherein the control unit includes a first driver that controls movement of the first lens group; and a second driver that stores the correction value and controls tilt of the optical member using the correction value.

5. In paragraph 1, A camera device wherein the tilt amount of the optical member for the lowest magnification and the tilt amount of the optical member for the highest magnification are values ​​in different directions.

6. In paragraph 1, A first position sensor for detecting displacement of the optical member relative to the second axis; and A camera device including a second position sensor that detects displacement of the optical member with respect to the third axis.

7. In paragraph 1, A camera device in which the control unit performs a shake correction operation by controlling the tilt of the optical member using the compensation value.

8. In paragraph 1, A camera device wherein the above moving lens group includes a zoom lens group and a focus lens group.

9. A lens assembly including a fixed lens group and a movable lens group movable in the first axis direction; An image sensor that detects light passing through the fixed lens group and the moving lens group; An optical member that irradiates light to the lens assembly and is tiltable around a second or third axis that is perpendicular to the first axis; A control unit is provided with a correction value for compensating for misalignment of the optical axis of the lens assembly corresponding to zoom magnification information for the moving lens group. The above control unit controls the tilt of the optical member based on the above correction value, The zoom ratio for the above moving lens group includes the highest magnification and the lowest magnification, A camera device in which the above correction value is generated by setting the initial position of the optical member based on a chart center that is further from the image center, which is the center of the image area of ​​the image sensor, between the chart center with the lowest magnification and the chart center with the highest magnification.

10. In paragraph 9, The above control unit tilt-corrects the optical member in the first direction to compensate for the misalignment of the optical axis of the lens assembly corresponding to the lowest magnification, A camera device in which the control unit tilts the optical member in a second direction opposite to the first direction to compensate for misalignment of the optical axis of the lens assembly corresponding to the highest magnification.

Images