Actuator, camera device, and optical device including same

Abstract

An embodiment comprises: a zoom lens unit and a focus lens unit arranged in an optical axis direction; a first position sensor for sensing the position of the zoom lens unit; a second position sensor for sensing the position of the focus lens unit; and a control unit for generating a first driving signal for moving the zoom lens unit to a first target position and a second driving signal for moving the focus lens unit to a second target position, wherein the control unit divides a first target value of the first position sensor corresponding to the first target position into a plurality of first groups and generates the first driving signal on the basis of the first groups, and divides a second target value of the second position sensor corresponding to the second target position into a plurality of second groups and generates the second driving signal on the basis of the second groups.

Description

Actuators, camera devices and optical devices including the same

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

[0003] The embodiment provides an actuator, a camera device and an optical device including the same that can suppress or prevent a phenomenon in which an image becomes momentarily out of focus when the zoom magnification is changed.

[0004] An actuator according to an embodiment includes a zoom lens unit and a focus lens unit arranged in an optical axis direction; a first position sensor for detecting a position of the zoom lens unit; a second position sensor for detecting a position of the focus lens unit; and a control unit for generating a first driving signal for moving the zoom lens unit to a first target position and a second driving signal for moving the focus lens unit to a second target position, wherein the control unit divides a first target value of the first position sensor corresponding to the first target position into a plurality of first groups and generates the first driving signal based on the first groups, divides a second target value of the second position sensor corresponding to the second target position into a plurality of second groups, and generates the second driving signal based on the second groups. Each of the second groups may correspond to any one of the first groups. Positions of the focus lens units matching the second groups may correspond to focus positions.

[0005] The first groups may be generated by dividing reference code values ​​within a range from a reference code value for the output of the first position sensor to the first target value using a preset number of codes per first unit time, and the second groups may be generated by dividing reference code values ​​within a range from a reference code value for the output of the second position sensor to the second target value using a preset number of codes per second unit time.

[0006] The control unit can generate the first groups using the output of the first position sensor and the first target value, and can generate the second groups using the output of the second position sensor and the second target value.

[0007] The number of the second groups may be less than or equal to the number of the first groups.

[0008] The first driving signal may have a step waveform corresponding to the plurality of first groups, and the second driving signal may have a step waveform corresponding to the plurality of second groups.

[0009] A preset first delay time may exist between two neighboring first groups among the plurality of first groups, and a preset second delay time may exist between two neighboring second groups among the plurality of second groups.

[0010] According to another embodiment, an actuator includes a zoom lens unit and a focus lens unit arranged in an optical axis direction; and a control unit for moving the zoom lens unit to a first target position based on a zoom magnification and moving the focus lens unit to a second target position corresponding to the first target position, wherein the control unit divides a first target value of the first position sensor corresponding to the first target position into a plurality of first groups and generates a first driving signal for driving the zoom lens unit based on the first groups, and when a difference in the zoom magnification before and after a change is equal to or greater than a preset value, divides a second target value of the second position sensor corresponding to the second target position into a plurality of second groups and generates the second driving signal based on the second groups.

[0011] When the difference between the zoom ratios before and after the change is less than a preset value, the control unit can generate the second driving signal based on the second target value. The preset value may be 2.

[0012] The actuator includes a first position sensor for detecting a position of the zoom lens unit; and a second position sensor for detecting a position of the focus lens unit, and the control unit can generate the first groups using an output of the first position sensor and the first target value, and can generate the second groups using an output of the second position sensor and the second target value.

[0013] Each of the second groups corresponds to one of the first groups, and the positions of the focus lens parts matching the second groups may correspond to focus positions.

[0014] The first groups may be generated by dividing reference code values ​​within a range from a reference code value for the output of the first position sensor to the first target value using a preset number of codes per first unit time, and the second groups may be generated by dividing reference code values ​​within a range from a reference code value for the output of the second position sensor to the second target value using a preset number of codes per second unit time.

[0015] A camera device according to an embodiment may include the actuator; and an image sensor facing the focus lens unit.

[0016] The embodiment can suppress or prevent a phenomenon in which the focus of an image of a camera device is momentarily blurred when the zoom ratio is changed from a high magnification (or low magnification) to a low magnification (or high magnification), and can prevent malfunction of the auto focus function.

[0017] Figure 1 is a perspective view of a camera device according to an embodiment.

[0018] Figure 2 is an exploded perspective view of the camera device of Figure 1.

[0019] Fig. 3 is a cross-sectional view of the camera device in the AB direction of Fig. 1.

[0020] Fig. 4 is a perspective view of the actuator illustrated in Fig. 1.

[0021] Fig. 5 is an exploded perspective view of the actuator of Fig. 4.

[0022] Fig. 6a is a front perspective view of the holder of Fig. 5.

[0023] Figure 6b is a rear perspective view of the holder.

[0024] Figure 6c is a downward perspective view of the holder.

[0025] Figure 7 is an exploded perspective view of the holder, the tilting guide part, and the magnetic support part.

[0026] Figure 8a is an exploded perspective view of a holder and a magnetic support unit in which an optical member, a tilting guide unit, and a magnet are combined.

[0027] Figure 8b is a perspective view of the combination of the optical member, the tilting guide member, the magnet, and the magnetic support member.

[0028] Fig. 9a is a first perspective view of the housing of Fig. 5.

[0029] Figure 9b is a second perspective view of the housing of Figure 9a.

[0030] Figure 9c is a perspective view of the housing and magnet of Figure 5.

[0031] Figure 10a is a perspective view of the housing, holder, optical member, first circuit board, and cover plate.

[0032] FIG. 10b is a drawing for explaining the electromagnetic force and the movement of the tilting guide part according to the interaction between the first to third magnets and the first to third coil units.

[0033] Fig. 11a is a cross-sectional view of the actuator in the CD direction of Fig. 4.

[0034] Fig. 11b is a cross-sectional view of the actuator in the EF direction of Fig. 4.

[0035] Fig. 12 is a perspective view of an actuator and an image sensing unit according to an embodiment.

[0036] Fig. 13a is a first separated perspective view of the actuator and image sensing unit of Fig. 12.

[0037] Fig. 13b is a second separated perspective view of the actuator and image sensing unit of Fig. 12.

[0038] Fig. 14a is a cross-sectional view of the actuator and image sensing unit of Fig. 12 taken along the lines a and b.

[0039] Fig. 14b is a cross-sectional view of the actuator and image sensing unit of Fig. 12.

[0040] Fig. 15 is an exploded perspective view of the actuator of Fig. 12.

[0041] Figure 16a is a perspective view of the housing and guide part separated.

[0042] Figure 16b is a perspective view of the body of the housing.

[0043] Figure 17a is a first perspective view of the first and second guide sections and the lens section.

[0044] Figure 17b is a second perspective view of the first and second guide sections and the lens section.

[0045] Figure 18 is an exploded perspective view of the first and second magnets and the lens unit.

[0046] Figure 19 illustrates a zooming and focus operation method according to an embodiment.

[0047] Fig. 20 illustrates a method for controlling movement of a lens unit according to an embodiment.

[0048] Fig. 21 shows a block diagram according to one embodiment of a driver IC.

[0049] Fig. 22 shows one embodiment of the division groups of the first target value generated by the driver IC of Fig. 21.

[0050] Figure 23 shows the relationship between the focus position of the lens unit corresponding to the zoom position of the lens unit obtained through calibration.

[0051] Fig. 24 shows a method for controlling movement of a lens unit according to an embodiment.

[0052] Figure 25 shows an example of the split groups of the second target value.

[0053] FIG. 26 illustrates an embodiment of divided zoom positions, a first divided group, divided focus positions, and a second divided group.

[0054] Figure 27 shows a perspective view of an optical device according to an embodiment.

[0055] Fig. 28 shows a configuration diagram of the optical device illustrated in Fig. 27.

[0056] Hereinafter, embodiments of the present invention that can specifically achieve the above purpose will be described with reference to the attached drawings.

[0057] In the description of the embodiments, when it is described that each element is formed "on or under", "on or under" includes both cases where two elements are in direct contact with each other or where one or more other elements are formed by being disposed indirectly between the two elements. In addition, when it is expressed as "on or under", it can include the meaning of not only the upward direction but also the downward direction based on one element.

[0058] Additionally, relational terms such as “first” and “second,” “upper / upper / lower,” and “lower / lower / below” used hereinafter may be used only to distinguish one entity or element from another entity or element, without necessarily requiring or implying any physical or logical relationship or order between such entities or elements. In addition, the same reference numbers represent the same elements throughout the description of the drawings.

[0059] Furthermore, terms such as "include," "comprise," or "have" described above, unless specifically stated otherwise, imply that the corresponding component may be included, and thus should be interpreted to include other components rather than excluding other components. Furthermore, terms such as "corresponding" described above may include at least one of the meanings of "opposite" or "overlapping."

[0060] 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 direction of the optical axis (OA). For example, the optical axis direction may be the direction of the optical axis (OA) or a direction parallel to the optical axis. Alternatively, the optical axis direction may be a direction perpendicular to a sensor surface of an image sensor. In addition, the Z-axis direction, which is the direction of the optical axis (OA), may be defined as 'any one of the first direction, the second direction, or the third direction', the X-axis direction may be defined as 'another one of the first direction, the second direction, or the third direction', and the Y-axis direction may be defined as 'another one of the first direction, the second direction, or the third direction'. Additionally, the Z-axis can be defined as any one of the first, second, and third axes, the X-axis can be defined as any other one of the first, second, and third axes, and the Y-axis can be defined as any other one of the first, second, and third axes.

[0061] Additionally, the term "terminal" below may be expressed as a pad, electrode, or conductive layer. Additionally, the term "code value" below may be expressed as data or a digital value.

[0062] 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).

[0063] A camera device according to an embodiment may perform a shake correction function, a zoom function, and an auto-focusing 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 'zoom function' may be a zooming function that increases or decreases the magnification of a distant subject by using a zoom lens to take a picture. 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.

[0064] Hereinafter, “camera device” may be replaced with “camera”, “camera module”, “camera camera” or “camera”.

[0065] 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. FIG. 4 is a perspective view of the actuator (320) shown in FIG. 1, FIG. 5 is an exploded perspective view of the actuator (320) of FIG. 4, 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 tilting guide part (61), and the magnetic support part (64), FIG. 8a is an exploded perspective view of the holder (30) and the magnetic support part (64) in which the optical member (40), the tilting guide part (61), and the magnet (31) are combined, FIG. 8b is a combined perspective view of the optical member (40), the tilting guide part (61), the magnet (31), and the magnetic support part (64), and FIG. 9a is a perspective view of the 5 is a first perspective view of the housing (50), FIG. 9b is a second perspective view of the housing (50) of FIG. 9a, FIG. 9c is an exploded perspective view of the housing (50) and the magnetic body (63) of FIG. 5, FIG. 10a is a perspective view of the 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 tilting guide part according to the interaction between the first to third magnets (31A, 31B, 32) and the first to third coil units (230A to 230C), FIG. 11a is a cross-sectional view of the actuator (320) in the CD direction of FIG. 4, and FIG. 11b is a cross-sectional view of the actuator (320) in the EF direction of FIG. 4.

[0066] Referring to FIGS. 1 to 3, the camera device (200) may include an actuator (310) for performing an auto focus and / or zoom function. The camera device (200) may further include an actuator (320) for performing an OIS (Optical Image Stabilizer) operation for performing shake correction. The camera device (200) may include an image sensing unit (330) for image sensing.

[0067] The actuator (320) can change the path of light. For example, the actuator (320) can include an optical member (40) that changes the path of light. The actuator (310) can include a plurality of lens units. The actuator (310) can move the lens units (622, 624) in the first axis direction (e.g., the Z-axis direction) or the optical axis direction, thereby performing a zoom function and an auto focus function. The actuator (320) can be expressed as an “optical path changing unit,” a “driving unit,” or an “OIS driving unit.” The actuator (310) can be expressed as an “driving unit” or an “AF and zoom driving unit.” The actuator (310) may be represented by either the first actuator or the second actuator, and the actuator (320) may be represented by the other of the first actuator and the second actuator. The actuator (310) may be positioned at the rear end or rear of the actuator (320). The actuator (310) and the actuator (320) may be coupled to each other.

[0068] The image sensing unit (330) can receive and detect light passing through the optical member (40) of the actuator (320) and the lens units (640, 622, 624) of the actuator (310) and convert the detected light into an electrical signal.

[0069] 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 actuator (310), the actuator (320), and the image sensing unit (330) of the camera device (200). An opening (303) or a hole exposing an incident surface of the optical member (40) may be formed in the top plate (301) of the cover member (300). The cover member (300) may be formed of a metal plate. In another embodiment, the cover member (300) may be formed of a plastic or resin material. In another embodiment, the cover member (300) may be made of a material that blocks electromagnetic waves. 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).

[0070] The actuator (320) may include a fixed portion and an OIS moving portion. The fixed portion may be a fixed element that does not move during OIS operation. The OIS moving portion may tilt or rotate by a preset angle based on a second axis (e.g., X-axis) or a third axis (e.g., Y-axis) intersecting a first axis (e.g., optical axis). The fixed portion may include a housing (50) and a configuration coupled to the housing (50). For example, the fixed portion may include at least one of a substrate portion (250), a coil (230), and a position sensor (240).

[0071] The OIS moving unit may include an optical member (40). The OIS moving unit may include a holder (30) for accommodating the optical member (40) and a configuration coupled with the holder (30). For example, the OIS moving unit may further include a magnetic support member (64). For example, the OIS moving unit may further include at least one of the magnets (31, 32, 62). For example, the OIS moving unit may further include a magnetic support member (64). The OIS moving unit may further include a yoke (33). The actuator (320) may further include a tilting guide member (61) disposed between the fixed member and the OIS moving unit.

[0072] The optical member (40) can change the path of light so that light passing through the opening (303) of the cover member (300) is incident on the actuator (310). The actuator (320) can include an OIS driving unit that rotates the OIS moving unit (e.g., the optical member (40)) by a preset angle around (or as the center) of a second axis (e.g., the X-axis) or a third axis (e.g., the Y-axis). For example, the OIS driving unit can include a coil (230) and magnets (31, 32).

[0073] The optical member (40) may include a reflector capable of changing the direction of light propagation. For example, the optical member (40) may be a prism that reflects light. In another embodiment, the optical member (40) may be a mirror. The optical member (40) may be placed in the holder (30). The optical member (40) may change the optical path of incident light into an optical axis parallel to the central axis (Z-axis) of the lens units (640, 622, 624), thereby changing the incident light into parallel light, and the parallel light may pass through the lens units (640), the lens units (622), and the lens units (624) to reach the image sensor (540).

[0074] For example, the optical member (40) may include an incident surface (8A) and an exit surface (8B). The optical member (40) 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.

[0075] 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. 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 optical device (200A) on which the camera device (200) is mounted can be reduced.

[0076] For example, the actuator (320) may include a housing (50), a holder (30) disposed within the 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 driving member (70).

[0077] The holder (30) may include a mounting portion (104) for placing or mounting the 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 the 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. For example, an adhesive for attaching the optical member (40) to the mounting surface (104a) of the holder (30) may be placed, and at least one groove (104b) for accommodating the adhesive may be formed in the mounting surface (104a).

[0078] 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 arranged on the upper side of the holder (30), and the second opening may be arranged on one side (front outer side, 31a) of the holder (30) facing a lens section (e.g., 311) of the actuator (310). The exit surface (8B) of the optical member (40) mounted on the holder (30) may be arranged to face the lens section (e.g., 311) of the actuator (310).

[0079] 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). 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 housing (50) can be prevented.

[0080] 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).

[0081] 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).

[0082] 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). 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 a third direction (e.g., in the Y-axis direction), spatial interference between the holder (30) and the housing (50) can be prevented. 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 protrusion or a projection 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 can be restricted by the stopper (39A). For example, the protruding height of the stopper (39A) based on 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).

[0083] 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). 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. 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 protrusion or a projection that protrudes 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 can be restricted by the stopper (41). For example, the protruding length of the stopper (38) based on the second surface (17B) may be smaller than or equal to the step between the first surface (17A) and the second surface (17B) of the lower surface (17) of the holder (30).

[0084] The holder (30) may include a first mounting groove (16A) for placing or settling the first magnet (31) and a second mounting groove (16B) for placing or settling the second magnet (32). For example, the first mounting groove (16A) may be formed on an outer surface (e.g., a first outer surface (19A)) of each of the first and side portions (31c, 31d) of the holder (30). For example, the first mounting groove (16A) may be a groove shape that is sunken from the first outer surface (19A) of each of the first and side portions (31c, 31d) of the holder (30). For example, the second mounting groove (16B) may be formed on a lower surface (17) (e.g., a second surface (16B)) of the holder (30). For example, the second fixing groove (16B) may be a groove shape sunken from the lower surface (17) of the holder (30) (e.g., the second surface (16B)).

[0085] 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). When viewed from the rear, the first surface (21a) may be positioned in the center, the second surface (21b) may be positioned on the left side of the first surface (21a), and the third surface (21c) may be positioned on the right side of the first surface (21a). 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. Or, 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.

[0086] For example, a groove (106) for settling or receiving a tilting guide part (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).

[0087] The holder (30) may be formed on the first surface (21a) of the rear outer surface (31c) and may include at least one groove (36A, 36B) corresponding to at least two protrusions (61B1, 61B2) of the tilting guide portion (61). In another embodiment, the number of grooves (36A, 36B) may be two or more. For example, the grooves (36A, 36B) of the holder (30) may be arranged to be spaced apart from each other in the second direction and may be formed on the bottom surface of the groove (106). The number of grooves of the holder (30) may be the same as the number of protrusions (61B1, 61B2) of the tilting guide portion (61). The grooves (36A, 36B) may have different shapes. In another embodiment, the grooves (36A, 36B) may have the same shape. In another embodiment, the grooves (36A, 36B) of the holder (30) may be arranged spaced apart in a third direction (e.g., in the Y-axis direction).

[0088] 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 protrusions (61B1, 61B2) and the first and second grooves (36A, 36B), and the protrusion (22A) may prevent the lubricant from overflowing.

[0089] 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). 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). For example, at least one protrusion (2A) (or groove) may be formed on at least one of the side surface 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). At least one of the side surface and the bottom surface of each of the first and second coupling grooves (105A, 105B) may be formed with grooves (4A) for placing adhesive. The bonding area between the adhesive and the magnetic support (64) may be increased by the grooves (4A), and the bonding force between the holder (30) and the magnetic support (64) may be improved. 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).

[0090] The housing (50) can be placed within the cover member (300). The holder (30) can be placed within the housing (50). For example, an adhesive or shield member can be placed between the housing (50) and the cover member (300), and the housing (50) can be coupled or fixed to the cover member (300). The housing (50) can accommodate the holder (30) therein, and can expose the incident surface (8A) and the output surface (8B) of the optical member (40) placed in the holder (30).

[0091] The 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).

[0092] The 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 or be positioned opposite each other in a second direction (e.g., in the X-axis direction). For example, the housing (50) may include a first side portion (28A), a second side portion (28B), a third side portion (28C), and a fourth side portion (28D). For example, the first side portion (28A) of the housing (50) may be disposed to face or be opposite a lens portion (e.g., 640) of the 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 portion (28A). 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).

[0093] For example, the housing (50) may include a first hole (54A) formed in the third side (28C) for mounting or arranging the coil unit (230A) of the coil (230), a second hole (54B) formed in the fourth side for mounting or arranging the coil unit (230B), and a third hole (54C) formed in the lower part (27B) for mounting or arranging the coil unit (230C). For example, each of the first to third holes (54A to 54C) is in the form of a through hole, but may be in the form of a groove in another embodiment. In addition, a groove (56) (or a through hole) for mounting or arranging the driver IC (260) may be formed in the third side (28C) (or the fourth side (28D)) of the housing (50). For example, the groove (56) may be formed to be spaced apart from the first hole (54A).

[0094] The 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 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). In addition, the housing (50) may include at least one engaging protrusion (52B) formed on the lower portion (28B). For example, the engaging protrusion (52B) may be formed to protrude from the outer surface of the lower portion (28B).

[0095] 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 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 housing (50).

[0096] The second side (28B) of the housing (50) may include at least one groove (58A, 58B) corresponding to the protrusions (61C1, 61C2) of the tilting guide portion (61). The grooves (58A, 58B) may be formed on the side (28B) of the housing (50) facing the tilting guide portion (61). The grooves (58A, 58B) may be formed on the inner surface of the side (28B) of the housing (50). For example, the housing (50) may include a protrusion (57) formed on the side (28B) of the housing (50). The protrusion (57) may protrude from the inner surface of the second side (28B) of the housing (50) toward the first side (28A). The grooves (58A, 58B) may be formed on the protrusion (57). The protrusion (57) may include a first portion (57A) protruding from the inner surface of the second side (28B) of the housing (50) and a second portion (57B) connecting the first portion (57A) and the lower portion (27B) of the housing (50). The grooves (58A, 58B) of the housing (50) may be formed on the inner surface (or front surface) of the second portion (57B) of the protrusion (57). For example, the number of grooves (58A, 58B) may be two or more. For example, the grooves (58A, 58B) of the housing (50) may be arranged to be spaced apart in the third direction. In addition, the number of grooves (58A, 58B) of the housing (50) may be the same as the number of protrusions (61C1, 61C2) of the tilting guide portion (61). In another embodiment, the grooves (58A, 58B) of the housing (50) may be arranged spaced apart in the second direction. A protrusion or step may be formed around the grooves (58A, 58B) of the housing (50), and a lubricant may be placed between the protrusion of the tilting guide part (61) and the grooves (58A, 58B) of the housing (50), and the description of the protrusion (22A) of the holder (30) may be applied or applied accordingly. The description of the shape of the grooves (36A, 36B) of the holder (30) may be applied or applied accordingly to the grooves (58A, 58B) of the housing (50).

[0097] In addition, a groove (44A) for placing or settling a magnetic body (63) may be formed on the rear surface of the protrusion (57) of the housing (50). For example, an opening (55) for allowing at least a portion of the magnetic body support (64) to pass through may be formed on the second side (28B) of the housing (50). In addition, at least one through hole may be formed on the second side (28B) of the housing (50). For example, a first through hole (55A) for allowing a portion of the magnetic body support (64) to pass through and a second through hole (55B) for allowing another portion of the magnetic body support (64) to pass through may be formed on the second side (28B) of the housing (50). As shown in Fig. 9c, when viewed from the rear of the housing (50), the first through hole (55A) may be located on one side (e.g., the right side) of the protrusion (57) of the housing (50), and the second through hole (55B) may be located on the other side (e.g., the left side) of the protrusion (57).

[0098] Next, the support (60) will be described.

[0099] The support member (60) is disposed between the holder (30) and the housing (50) and can support the holder (30) with respect to the housing (50). The support member (60) can include a tilting guide member (61) disposed between the fixed member (e.g., the housing (50)) and the OIS moving member (e.g., the holder (30)). The tilting guide member (61) can support the OIS moving member (e.g., the holder (30)) with respect to the fixed member (e.g., the housing (50)). The tilting guide member (61) can also be expressed as a “mover”, a “driving plate”, a “tilting guide”, a “mover plate”, a “driving plate”, a “plate”, a “moving plate”, or a “support plate”.

[0100] The tilting guide part (61) may be arranged between one side (48C) of the holder (30) and one side (28B) of the housing (50). The tilting guide part (61) may include at least one protrusion (61B1, 61B2) that comes into contact with the holder (30) and at least one protrusion (61C1, 61C2) that comes into contact with the housing (50). For example, at least one protrusion (61B1, 61B2) of the tilting guide part (61) may be coupled with the holder (30), and at least one protrusion (61C1, 61C2) of the tilting guide part (61) may be coupled with the housing (50). The protrusions (61B1, 61B2) of the tilting guide part (61) may be replaced with "front protrusions", and the protrusions (61C1, 61C2) of the tilting guide part (61) may be replaced with "rear protrusions". The number of each of the front protrusions and the rear protrusions may be 1 or more. In the embodiments of FIGS. 7 and 8A, the number of each of the front protrusions and the rear protrusions of the tilting guide part may be 2.

[0101] For example, the protrusions (61B1, 61B2) of the tilting guide part (61) can be arranged spaced apart in the second direction. Each of the protrusions (61B1, 61B2) of the tilting guide part (61) can be arranged in a corresponding one of the grooves (36A, 36B) of the holder (30). The protrusions (61C1, 61C2) of the tilting guide part (61) can be arranged spaced apart in the third direction. Each of the protrusions (61C1, 61C2) of the tilting guide part (61) can be arranged in a corresponding one of the grooves (58A, 58B) of the housing (50). In another embodiment, the protrusions (61B1, 61B2) of the tilting guide portion (61) may be arranged spaced apart in the third direction, and the protrusions (61C1, 61C2) of the tilting guide portion (61) may be arranged spaced apart in the second direction.

[0102] For example, the tilting guide part (61) may include a body (61A) disposed in a groove (106) of the holder (30), protrusions (61B1, 61B2) protruding from the front of the body (61A), and protrusions (61C1, 61C2) protruding from the rear of the body (61A). For example, the protrusions (61B1, 61B2) and the protrusions (61C1, 61C2) may protrude in opposite directions. For example, each of the protrusions (61B1, 61B2) may have a curved shape, a hemispherical shape, a dome shape, or a polyhedral shape, but is not limited thereto. In addition, for example, each of the protrusions (61C1, 61C2) may have a curved shape, a hemispherical shape, a dome shape, or a polyhedral shape.

[0103] In other embodiments, instead of protrusions, front grooves may be formed on the front side of the tilting guide portion, and instead of protrusions, rear grooves may be formed on the rear side of the tilting guide portion. In addition, instead of grooves (36A, 36B), the holder may be formed with protrusions for engaging with the front grooves of the tilting guide portion, and instead of grooves (58A, 58B), the housing may be formed with protrusions for engaging with the rear grooves of the tilting guide portion.

[0104] In another embodiment, instead of the front protrusions, front grooves may be formed on the first surface of the tilting guide portion, and instead of the rear protrusions, rear grooves may be formed on the second surface of the tilting guide portion, and the camera device (200) may include front ball members (or first ball members) arranged between the grooves (36A, 36B) of the holder (30) and the front grooves of the tilting guide portion, and rear ball members (or second ball members) arranged between the grooves (58A, 58B) of the housing (50) and the rear grooves of the tilting guide portion.

[0105] For example, the tilting guide part (61) may be made of an injection-molded material such as plastic or resin. In another embodiment, the tilting guide part (61) may be made of a metal, for example, SUS material. In addition, the tilting guide part (61) may be a non-magnetic material. In another embodiment, the tilting guide part may be a magnetic material.

[0106] The support (60) may include a magnetic body (63) disposed in the fixed portion and a magnetic body (62) disposed in the OIS moving portion. The magnetic body (62) may be coupled to the OIS moving portion, and the magnetic body (63) may be coupled to the fixed portion. For example, the magnetic body (62) may be coupled to the holder (30), and the magnetic body (63) may be coupled to the housing (50). The magnetic body (62) may be disposed in the holder (30), and the magnetic body (63) may be disposed in the housing (50). The support (60) may further include a magnetic body support (64) on which the magnetic body (62) is disposed, and which is coupled to the OIS moving portion (e.g., the holder (30)). The magnetic body (62) may be coupled to the magnetic body support (64). The magnetic support member (64) may be positioned apart from the tilting guide member (61). For example, the magnetic support member (64) may pass through at least a portion of the housing (40) and be coupled to the holder (30). The magnetic support member (64) may also be expressed as a “support member,” “mover rigid,” or “coupling member.”

[0107] Referring to FIGS. 7 to 10, the magnetic support member (64) may include a body (93) in which a 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 housing (140) to be coupled with the holder (30), and a second extension portion (94b) extending from the other side of the body (93) and passing through a second through-hole (55B) of the housing (140) to be coupled with the holder (30). For example, the first extension portion (94a) may be coupled to a first coupling groove (105A) of the holder (30), and the second extension portion (94b) may be coupled to a second coupling groove (105B) of the holder (30).

[0108] A groove (64a) may be formed in the magnetic support member (64) to allow the magnetic body (62) to be settled or placed. For example, the groove (64a) may be formed on the front surface of the body (93) of the magnetic support member (64). For example, the 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. The magnetic body (63) may be placed on the second side (28B) of the housing (50). For example, the magnetic body (63) may be placed on the protrusion (57) of the housing (50). For example, the magnetic body (63) can be placed in the groove (44A) of the protrusion (57) of the housing (50). For example, the magnetic body (63) can be combined with the groove (44a) of the housing (50) by an adhesive.

[0109] The magnetic body (62) and the magnetic body (63) may be spaced apart from each other. The magnetic body (62) and the magnetic body (63) may be arranged to face each other. The magnetic body (62) and the magnetic body (63) may be arranged to face each other or overlap each other in the optical axis direction or the first direction.

[0110] The magnetic body (63) may be positioned between the magnetic body (62) and the tilting guide part (61). In an embodiment, the tilting guide part (61) is not positioned between the magnetic body (62) and the magnetic body (63), and both the magnetic body (62) and the second magnetic body (64) may be positioned on one side of the tilting guide part (61) with respect to the tilting guide part (61). The magnetic body (62) and the magnetic body (64) may be positioned on opposite sides of the optical member (40) with respect to the tilting guide part (61). This can reduce the separation distance between the magnetic body (62) and the magnetic body (63), and increase the magnetic force (e.g., repulsive force) between the magnetic body (62) and the magnetic body (63).

[0111] The tilting guide part (61) can be pressed against the holder (30) and / or the housing (50) by the magnetic force (e.g., 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 housing (50). In an embodiment, the magnetic force (e.g., repulsive force) between the magnetic bodies (62) and (63) can be large, and the tilting guide part (61) can stably support the holder (30), thereby enabling stable OIS operation to be performed.

[0112] Referring to FIG. 11a, the length of the magnetic body (62) in the second direction may be greater than the length of the magnetic body (63) in the second direction. Also, referring to FIG. 11b, the length of the magnetic body (62) in the third direction may be greater than the length of the magnetic body (63) in the third direction. In another embodiment, the length of the magnetic body (62) in the second direction may be equal to or less than the length of the magnetic body (63) in the second direction, and the length of the magnetic body (62) in the third direction may be equal to or less than the length of the magnetic body (63) in the third direction. For example, the area of ​​the first surface of the magnetic body (62) facing the magnetic body (63) may be greater than the area of ​​the first surface of the magnetic body (63) facing the magnetic body (62). In other embodiments, the area of ​​the first face of the first magnetic body may be equal to or smaller than the area of ​​the first face of the second magnetic body.

[0113] A repulsive force may be applied between the magnetic body (62) and the magnetic body (63). The magnetic body (62) may include a first magnet. The magnetic body (63) may include a second magnet on which the repulsive force is applied with the first magnet. For example, each of the magnetic bodies (62) and (63) may be a magnet including a north pole and a south pole. In addition, for example, the magnetic body (62) may further include a first yoke corresponding to the first magnet and disposed within a groove (64a). For example, the magnetic body (63) may further include a second yoke corresponding to the second magnet and disposed within a groove (44A) of the housing (50), and the first yoke and the second yoke may increase a magnetic force (e.g., a repulsive force) applied between the magnetic bodies (62) and (63). For example, the facing surfaces of the magnetic body (62) and the magnetic body (63) may have the same polarity (N pole or S pole).

[0114] 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.

[0115] Next, the driving unit (70) will be described.

[0116] The camera device (200) may include a driving unit (70) that tilts the OIS moving unit or rotates it by a preset angle. The driving unit (70) may tilt the holder (30) in a second direction or a third direction or rotate it by a preset angle. The driving unit (70) may include magnets (31, 32) and a coil (230). The driving unit (70) may be replaced with the term “OIS driving unit.” The magnets (31, 32) may be replaced with the term “OIS magnet” or “magnet unit,” and the coil (230) may be replaced with the term “OIS coil” or “coil unit.” In addition, the driving unit (70) may further include a position sensor unit (240) and a substrate unit (250).

[0117] Magnets (31, 32) can be placed in the holder (30). Magnets (31, 32) can be coupled to the holder (30). Magnets (31, 32) can include a first OIS magnet (31) and a second OIS magnet (32).

[0118] For example, the first OIS magnet (31) 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 a first mounting groove (16A) of the first side (31c) of the holder (30), and the second magnet unit (31B) may be disposed within a first mounting groove (16A) of the second side (31d) of the holder (30). The second OIS magnet (32) may include a third magnet unit disposed on a lower surface (17) of the holder (30). The third magnet unit (32) can be placed in the second mounting groove (16B) of the holder (30).

[0119] Each of the first to third magnet units (31A, 31B, 32) may be a unipolar magnet having one N pole and one S pole or a bipolar magnet. In another embodiment, each of the first to third magnet units (31A, 31B, 32) may be a bipolar magnet having two N poles and two S poles or a quadrupolar magnet. In yet another embodiment, at least one of the first to third magnet units (31A, 31B, 32) may be a bipolar magnet, and the rest may be quadrupolar magnets.

[0120] The coil (230) may be disposed in the housing (50). The coil (230) may be disposed corresponding to or opposite the magnet (31). For example, the coil (230) may include a first OIS coil (230A, 230B) corresponding to, opposite to, or overlapping the first magnet (31A, 31B) in a third direction, and a second OIS coil (230C) corresponding to, opposite to, or overlapping the second magnet (32) in a second direction.

[0121] For example, the first OIS coil may include a coil unit (230A) corresponding to, opposite to, or overlapping with the first magnet unit (31A) in a third direction and a 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 coil unit (230C) corresponding to, opposite to, or overlapping with the third magnet unit (32) in a second direction. For example, the coil unit (230A) may be placed on the third side (28C) of the housing (50) (e.g., the first hole (34A)), the coil unit (230B) may be placed on the fourth side (28D) of the housing (50) (e.g., the second hole (54B)), and the coil unit (230C) may be placed on the lower part (28B) of the housing (50) (e.g., the third hole (54C)).

[0122] For example, the coil unit (230A) may have a closed curve or ring shape including a hollow or hole. The coil unit (230A) may be implemented in a coil ring shape that is wound clockwise or counterclockwise with respect to an axis parallel to the third direction. The coil unit (230B) may have a closed curve or ring shape that is wound clockwise or counterclockwise with respect to an axis parallel to the third direction. The coil unit (230C) may have a closed curve or ring shape that is wound clockwise or counterclockwise with respect to an axis parallel to the third direction.

[0123] Referring to FIG. 10b, a first electromagnetic force (F21, F22, F31, F32) can be generated by the interaction between the first 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 coil unit (230A) and the interaction between the second magnet unit (31B) and the 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 coil unit (230A), a first-second electromagnetic force (F21, F31) may be generated by the interaction between the second magnet unit (31B) and the 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). In addition, a second electromagnetic force (F1, F2) may be generated by the interaction between the second magnet (32) and the coil unit (230C).

[0124] The OIS moving part (e.g., holder (30)) can be tilted about 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. The OIS moving part can be tilted about 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 the OIS moving part is rotated by a preset angle with the third axis as the rotation axis. In addition, the coil unit (230A) and the coil unit (230B) can overlap in the third direction (Y-axis direction), and the first magnet (31A) and the second 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.

[0125] 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 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 magnet (32) and the coil unit (230C).

[0126] The camera device (200) may further include yokes (33: 33A, 33B, 33C) disposed on magnets (31, 32). For example, the yokes (33) may include a first yoke (33A) disposed on a first magnet unit (31A), a second yoke (33B) disposed on a second magnet unit (31B), and a third yoke (33C) disposed on a third magnet unit (32). For example, the first yoke (33A) may be disposed within a first mounting groove (16A) of a first side (31c) of the holder (30). For example, the first yoke (33A) may be disposed 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). The third yoke (33C) may be placed inside the third magnet unit (32). The first yoke (33A) and the second yoke (33B) may increase the first electromagnetic force, and the third yoke (33C) may increase the second electromagnetic force.

[0127] 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).

[0128] The actuator (320) may include a substrate (250) disposed on a fixed portion (e.g., a housing (50). The substrate (250) may be coupled to the housing (50). The substrate (250) may be electrically connected to the coil (230). The first to third coil units (230A, 230B, 230C) may be electrically connected to the substrate (250) by solder or a conductive adhesive. A driving signal may be supplied to the coil (230) through the substrate (250).

[0129] For example, the coil unit (230A) and the coil unit (230B) may be connected in series with each other. A third driving signal may be supplied to the coil units (230A, 230B) connected in series through the substrate (250). Additionally, a fourth driving signal may be supplied to the coil unit (230C) through the substrate (250). In another embodiment, the first coil unit (230A) and the second coil unit (230B) may not be connected to each other, and independent and separate driving signals may be supplied to the coil unit (230A) and the coil unit (230B) through the substrate (250).

[0130] The substrate portion (250) may include a first circuit substrate (250A) disposed on a side (28C) of the housing (50), a second circuit substrate (250B) disposed on a side (28D) of the housing (50), and a third circuit substrate (250C) disposed on a lower portion (27B) of the housing (50). In FIG. 5, the first circuit substrate (250A) appears to be spaced apart from the third circuit substrate (250C), but the first to third circuit substrates (250A to 250C) may be a single integrated substrate and may be electrically connected to each other. In other embodiments, at least one of the first to third circuit substrates may not be integrated with the others, and may be electrically connected to each other.

[0131] 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 housing (50). In addition, the first circuit board (250A) may include a plurality of terminals (251).

[0132] The 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 an outer surface of the third side (28C) of the housing (140). The second surface of the first circuit board (250A) may be an opposite surface of the first surface of the first circuit board (250A). The substrate portion (250) may include a bent 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). 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 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 part (28B) of the housing (50).

[0133] The coil unit (230B) may be arranged or mounted on a first surface of a second circuit board (250B). The first surface of the second circuit board (250B) may be a surface facing an outer surface of the fourth side (28C) of the housing (140). The coil unit (230C) may be arranged or mounted on a first surface of a third circuit board (250C). The first surface of the third circuit board (250C) may be a surface facing an outer surface of the lower portion (28B) of the housing (140). This 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). Additionally, the substrate (250) may include a wiring pattern for electrically connecting components arranged on the first to third circuit substrates (250A, 250B, 250C) and a plurality of terminals (251).

[0134] The camera device (200) may further include a gyro sensor (82) disposed on the circuit board (250). For example, the gyro sensor (82) may be disposed on one of the first and second circuit boards (250A, 250B) (e.g., 250A). The gyro sensor (82) may be electrically connected to the circuit board (250). The gyro sensor (82) may output angular velocity information of the camera device (200). For example, the gyro sensor (82) may be a two-axis, three-axis, or five-axis gyro sensor or an angular velocity sensor.

[0135] The camera device (200) may further include a driver IC (260) disposed on the substrate (250). For example, the driver IC (260) may be disposed or mounted on one of the first and second circuit substrates (250A, 250B) (e.g., 250A). For example, the driver IC (260) may be disposed on the housing (50). For example, the driver IC (260) may be disposed or mounted on the first surface of the first circuit substrate (250A) of the housing (50).

[0136] The driver IC (260) can be electrically connected to the first OIS coil (230A, 230B) and the second OIS coil (230C). In addition, the driver IC (260) can be electrically connected to the first OIS position sensor (240A, 240B) and the second OIS position sensor (240C).

[0137] The driver IC (260) can supply a third driving signal to the first OIS position sensor (240A, 240B) and a fourth driving signal to the second OIS position sensor (240C). The driver IC (260) can receive the third output signal of the first OIS position sensor (240A, 240B) and the fourth output signal of the second OIS position sensor (240C).

[0138] The driver IC (260) can perform analog-to-digital conversion on the received third output signal and generate a third code value. The driver IC (260) can control or adjust the third driving signal applied to the first OIS coil (230A, 230B) based on the result of comparing the generated third code value with the third target value. In addition, the driver IC (260) can perform analog-to-digital conversion on the received fourth output signal and generate a fourth code value. The driver IC (260) can control or adjust the fourth 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.

[0139] 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 moving unit of the 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 moving unit of the 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 memory. For example, the driver IC (260) may be expressed as “OIS driver IC”, “OIS control unit”, or “control unit”.

[0140] In addition, the camera device (200) may further include a cover plate (50A) disposed on the second side (28B) of the housing (50) and covering the opening (55) of the housing (50). The cover plate (50A) may be coupled or attached to the outer surface of the second side (28B) of the housing (50) and may prevent foreign substances from entering the housing (50). The cover plate (50A) may be formed of a non-magnetic material. For example, the cover plate (50A) may be formed of an injection molded material such as resin or plastic, similar to the housing (50). In another embodiment, the cover plate (50A) may include a magnetic body or may be formed of a magnetic material. For example, the cover plate (50A) may be a magnetic body plate. When the cover plate (50A) is a magnetic plate, the magnetic flux of the magnetic body (62) leaking to the rear of the magnetic body (62) can be reduced, the magnetic flux generated from the magnetic body (62) can be concentrated to the magnetic body (63), and the repulsive force between the first and second magnetic bodies (62, 63) can be increased. As a result, the sagging of the tilting guide part (61) can be prevented, the tilting guide part (61) can stably support the holder (30), stable OIS operation can be performed, and the reliability of OIS operation can be secured.

[0141] The actuator (320) may include a position sensor (240) for detecting displacement of the OIS moving part. The position sensor (240) may be electrically connected to the substrate (250). The position sensor (240) may be replaced with an “OIS position sensor.” The position sensor (240) may detect a tilted position (or displacement) of the OIS moving part according to the movement (or tilting) of the OIS moving part. The position sensor (240) may include a first OIS position sensor (240A, 240B) and a second OIS position sensor (240B). The position sensor (240) may include a plurality of sensors.

[0142] The first OIS position sensor (240A, 240B) can detect the X-axis tilted position (or displacement) of the OIS moving part. At least a part of the first OIS position sensor (240A, 240B) can correspond to, face, or overlap with the first magnet (31) in the third direction. The first OIS position sensor (240A, 240B) can detect the strength of the magnetic field of the first magnet (31). The first OIS position sensor can include the first sensor (240A) and the second sensor (240B).

[0143] The second OIS position sensor (240C) can detect the Y-axis tilted position (or displacement) of the OIS moving part. At least a portion of the second OIS position sensor (240C) can correspond to, face, or overlap with the second OIS magnet (32) in the second direction. The second OIS position sensor (240C) can detect the strength of the magnetic field of the second OIS magnet (32).

[0144] For example, the first sensor (240A) may be placed or mounted on the first circuit board (250A). The second sensor (240B) may be placed or mounted on the second circuit board (250B). For example, the first sensor (240A) may be placed within the hollow (or hole) of the coil unit (230A), and the second sensor (240B) may be placed within the hollow (or hole) of the coil unit (230B). In another embodiment, the first sensor (240A) may be placed outside the hollow (or hole) of the first coil unit (230A), and the second sensor (240B) may be placed outside the hollow (or hole) of the second coil unit (230B).

[0145] For example, the first sensor (240A) and the second sensor (240B) may each be a Hall sensor including first and second input terminals and first and second output terminals. The output terminals of the first sensor (240A) and the output terminals of the second sensor (240B) may be connected in series, and a first output signal may be output from the serially connected output terminals of the first and second sensors (240A, 240B), and the first output signal may be transmitted to the driver IC (260). In another embodiment, the output terminals of the first sensor (240A) and the output terminals of the second sensor (240B) may not be connected to each other, and the output of the first sensor (240A) and the output of the second sensor (240B) may each be transmitted to the driver IC (260). The driver IC (260) can supply a driving signal or power to the input terminals of the first sensor (240A1) and the input terminals of the second sensor (240A2).

[0146] In another embodiment, either one of the first sensor (240A) and the second sensor (240B) may be omitted, and the driver IC (260) may supply a driving signal or power to the input terminals of the remaining one of the first and second sensors (240A, 240B), and an output signal output from the output terminals of the remaining one of the first and second sensors (240A, 240B) may be transmitted to the driver IC (260).

[0147] 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 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 (240C2) may be arranged within the hollow (or hole) of the coil unit (230C). In another embodiment, the third sensor (240C1) and the fourth sensor (240C2) may be arranged outside the hollow (or hole) of the third coil unit (230B).

[0148] 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. The output terminals of the third sensor (240C1) and the output terminals of the fourth sensor (240C2) may be connected in series, and a second output signal may be output from both ends of the serially connected output terminals of the third and fourth sensors (240C1, 240C2), and the second output signal may be transmitted to the driver IC (260). In another embodiment, the output terminals of the third sensor (240C1) and the output terminals of the fourth sensor (240C2) may not be connected to each other, and the output of the third sensor (240C1) and the output of the second sensor (240BC) may each be transmitted to the driver IC (260).

[0149] The driver IC (260) can supply a driving signal or power to the input terminals of the third sensor (240C1) and the input terminals of the fourth sensor (240C2). In another embodiment, either the third sensor (240C1) or the fourth sensor (240C2) may be omitted, and the driver IC (260) can supply a driving signal or power to the input terminals of the remaining one of the third and fourth sensors (240C1, 240C2). An output signal output from the output terminals of the remaining one of the third and fourth sensors (240C1, 240C2) can be transmitted to the driver IC (260).

[0150] In another embodiment, the first OIS position sensor (240A, 240B) may be a digital sensor, and the second OIS position sensor (240C) may be a digital sensor. For example, the digital sensor may be a driver IC including a Hall sensor. When the first and second OIS position sensors (240A, 240B, 240C) are digital sensors, the first OIS position sensor (240A, 240B) may supply a driving signal or power to the first OIS coil (230A, 230B) instead of the driver IC (260), and the second OIS position sensor (240C) may supply a driving signal or power to the second OIS coil (230C).

[0151] FIG. 12 is a perspective view of an actuator (310) and an image sensing unit (330) according to an embodiment, FIG. 13a is a first separated perspective view of the actuator (310) and the image sensing unit (330) of FIG. 12, FIG. 13b is a second separated perspective view of the actuator (310) and the image sensing unit (330) of FIG. 12, FIG. 14a is an ab cross-sectional view of the actuator (310) and the image sensing unit (330) of FIG. 12, FIG. 14b is a cd cross-sectional view of the actuator (310) and the image sensing unit (330) of FIG. 12, FIG. 15 is an separated perspective view of the actuator (310) of FIG. 12, FIG. 16a is an separated perspective view of a housing (610), and FIG. 16b is FIG. 17A is a perspective view of a body (612) of a 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).

[0152] Referring to FIGS. 12 to 18, the actuator (310) may include a fixed portion and a moving portion. The fixed portion may be a fixed element that does not move during AF and zoom operations. The fixed portion may include a housing (610) and components coupled with the housing (610). The fixed portion may include at least one of a substrate portion (190) and a substrate portion (530). The fixed portion may include components disposed on the substrate portions (190, 530) or coupled with the substrate portions (190, 530). For example, the fixed portion may include at least one of a coil (120), an image sensor (540), a sensor base (550), and a filter (560).

[0153] The moving unit may be a part that moves in the direction of the optical axis. The moving unit may include a zoom moving unit and an auto focus moving unit. The zoom moving unit may move in the direction of the optical axis to perform a zoom operation. The auto focus moving unit may move in the direction of the optical axis to perform an auto focus operation. The zoom moving unit may include a lens unit (622). The zoom moving unit may include a magnet (130A). The auto focus moving unit may include a lens unit (624). The auto focus moving unit may include a magnet (130B).

[0154] The actuator (310) may include a “zoom and auto focus driving unit” for moving the zoom moving unit and the auto focus moving unit in the optical axis direction. The zoom and auto focus driving unit may include a magnet (130) and a coil (120).

[0155] The actuator (310) may include a housing (610), a lens unit (620) disposed within the housing (610), and a driving unit (630) that moves the lens unit (620) in a first direction (e.g., in the optical axis direction or the Z-axis direction).

[0156] The lens unit (620) may be alternatively expressed as a “lens assembly” or a “lens group.” For example, the lens unit (620) may include a plurality of lens units. In FIGS. 12 to 18 , the lens unit (620) may include two lens units (622, 624). In other embodiments, the number of lens units may be one or three or more. For example, the lens units (622, 624) may be arranged in the first direction or the optical axis direction.

[0157] The actuator (310) may further include a lens unit (640) positioned between the lens unit (620) and the actuator (320). For example, the lens unit (640) may be a fixed lens unit whose position is fixed and does not move in the optical axis direction.

[0158] The lens unit (640) may include a lens array (642) (or a first lens group). For example, the lens unit (640) may further include a lens barrel (643) coupled with the lens array (642). The lens unit (640) may be coupled with the housing (610). The lens unit (640) may be positioned between the housing (50) of the actuator (320) and the housing (610) of the actuator (310). The lens unit (640) may be coupled with at least one of the housing (610) and the housing (50).

[0159] For example, at least one first coupling hole (643A) may be formed on the front side of the lens barrel (643) to be coupled with at least one coupling protrusion (46A) of the housing (610). In addition, a second coupling hole may be formed on the rear side of the lens barrel (643) to be coupled with at least one coupling protrusion (52A) of the housing (50). The lens unit (640) is expressed as being included in the actuator (310), but is not limited thereto, and may be expressed as not being included in the actuator (310). In other embodiments, the lens unit (640) may be omitted.

[0160] Also, in another embodiment, one of 640, 622, and 624 may be represented as a “first lens unit,” another of 640, 622, and 624 may be represented as a “second lens unit,” and the remaining other of 640, 622, and 624 may be represented as a “third lens unit.” For example, in the embodiment, the lens unit (640) may be a fixed lens group, and each of the lens unit (622) and the lens unit (624) may be a moving lens group.

[0161] For example, the lens unit (640) can perform a focal function that focuses parallel light at a specific location. In addition, the lens unit (622) can perform a variator function that refocuses the image focused by the lens unit (640), which is a condenser, at another location. Meanwhile, in the lens unit (622), the distance to the subject or the image distance may change significantly, resulting in a large change in magnification, and the lens unit (622), which is a variator, can play an important role in the change in the focal length or magnification of the optical system. Meanwhile, the image point focused by the lens unit (6220), which is a variator, may have a slight difference depending on the location. In addition, the lens unit (624) can perform a position compensation function for the image focused by the variator. For example, the lens unit (624) can perform a compensator function that accurately focuses the image point focused by the lens unit (622), which is a variator, onto the pixels of the image sensor (540). For example, the lens unit (622) may be a zoom lens unit that performs a zooming function, and the lens unit (624) may be a focus lens unit that performs a focusing function.

[0162] Referring to FIGS. 16A and 16B, a housing (610) may be disposed between the housing (50) and the image sensor unit (330) (e.g., sensor base (550)). The housing (610) may also be alternatively expressed as a “base” or a “holder”. The housing (610) may be disposed inside the cover member (300) and may have a polyhedral (e.g., rectangular parallelepiped) shape having a space therein to accommodate the lens unit (620) and the driving unit (630).

[0163] For example, the housing (610) may include a body (612) including an upper portion (142A) (or top plate), a lower portion (142B) (or bottom 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 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). The side portions (141-1 to 141-4) may be alternatively expressed 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 may 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 may be positioned opposite each other. A first opening (41A) (or first hole) for exposing one end of the lens unit (620) may be formed in the first side (141-1) of the housing (610), and a second opening (41B) (or second hole) for exposing the other end of the lens unit (620) may be formed in the second side (141-2) of the housing (610). In addition, a third opening (41C) (or third hole) for placing or settling a first coil (120A) may be formed in the third side (141-3) of the housing (610), and a fourth opening (41C) (or third hole) for placing or settling a second coil (120B) may be formed in the fourth side (141-4) of the housing (610). Each of the third and fourth openings (41C, 41D) has a through-hole shape, but is not limited thereto, and may also have a groove shape. At least one first coupling protrusion (45A) for being coupled with a first circuit board (192) of the substrate (190) may be formed in the third side (141-3) of the housing (610). For example, at least one first coupling protrusion (45A) may protrude from the outer surface of the third side (141-3).At least one second coupling protrusion (45B) that is coupled to the second circuit board (194) of the substrate (190) may be formed on the fourth side (141-1) of the 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 housing (610).

[0164] The 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 lens portion (622) when the lens portion (620) moves by a zooming operation. The second guide portion (614B) may support and guide the lens portion (624) when the lens portion (620) moves by a zooming operation. The first guide portion (614A) may be arranged between the lens portion (620) and the third side portion (141-3), and the second guide portion (614b) may be arranged between the lens portion (620) and the fourth side portion (141-4). For example, the first guide portion (614A) can be coupled to the third side portion (141-3) of the housing (610), and the second guide portion (614B) can be coupled to the fourth side portion (141-4) of the housing (610).

[0165] 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 “home.” 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). 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). At this time, the inner surface of the body (63A) of each of the first and second guide parts (614A, 614B) may be a surface facing the lens part (620).

[0166] 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. Each of the first and second guide grooves (212A, 212B) may be formed continuously from the front end to the rear end of the inner surface of the body (64A). 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. For example, the protrusions (63B) may be formed on the rear or rear end of each of the first guide portion (614A) and the second guide portion (614B). At least one hole (68) may be formed in the protrusions (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 housing (610). For example, the hole (68) of the protrusion (63B) can be coupled with the coupling protrusion (46A) of the body (612) of the housing (610). For example, the coupling protrusion (46A) can pass through the hole (68) of the protrusion (63B) and be coupled to the first coupling hole (643A) of the lens barrel (643).

[0167] At least one engaging protrusion (6A) that engages with the body (612) of the 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 housing (610) (see FIG. 16B).

[0168] Referring to FIG. 16B, guide protrusions (44A to 44D) for guiding first and second guide portions (614A, 614B) may be formed on the inner surface of the body (612) of the housing (610). For example, the first guide protrusion (44A) may be arranged on the inner surface of the lower portion (142B) of the housing (610), and the second guide protrusion (44B) may be arranged on the inner surface of the upper portion (142A) of the 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 (141-3) of the housing (610). Also, for example, the third guide protrusion (44C) may be arranged on the inner surface of the lower portion (142B) of the housing (610), and the fourth guide protrusion (44D) may be arranged on the inner surface of the upper portion (142A) of the 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 housing (610).

[0169] The first and second guide portions (614A, 614B) can be stably coupled to the body of the 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 dislodged from their original positions or colliding with the lens portion (620) due to impact or the like. The first guide portion (614A) can have a first opening (67A) (or hole) corresponding to, opposite to, or overlapping with the first magnet (130A). For example, the first opening (67A) can be located between the first magnet (130A) and the first coil (120A). 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).

[0170] In FIGS. 16A and 16B, the first and second guide portions (614A, 614B) and the body (612) of the housing (610) are each formed as separate injection molded objects, 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 object with the body of the housing.

[0171] 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 housing (610), and the 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. The lens portion (620) may include a lens portion (622) that moves along a first guide portion (614A) and a lens portion (624) that moves along a second guide portion (614B).

[0172] Referring to FIGS. 17A, 17B, and 18, the lens unit (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 replaced with a “bobbin.” The second lens array (49) may include a single lens or a plurality of lenses. The first lens holder (29) may include a first lens barrel (29A) in which the second lens array (49) is disposed, and a first support (29B) coupled with the first lens barrel (29A). For example, the first lens barrel (29A) may have a barrel shape and may include an opening (29C) (or hole) for coupling the second lens array (49).

[0173] The first side (or first surface) of the first support portion (29B) can be coupled to the first lens barrel (29A). The first support portion (29B) can correspond to, face, or overlap with the body (63A) of the first guide portion (614A) in the third direction. A first mounting portion (30A) for arranging or mounting a first magnet (130A) can be formed on the second side (or second surface) of the first support portion (29B). The second side (or second surface) of the first support portion (29B) can be a surface facing the first guide portion (614A) and can be an opposite surface of the first side (or first surface) of the first support portion (29B).

[0174] 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.

[0175] 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). For example, at least one first groove (13A) may correspond to, face, or overlap at least one first guide groove (212A) of the first guide portion (614A). 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 equal to the number of balls (B11 to B14), but is not limited thereto.

[0176] The lens unit (624) may include a second lens holder (39) and a third lens array (59) (or a third lens group) arranged in the second lens holder (39). 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.

[0177] The distance in the optical axis direction between the second lens group and the third lens group can be varied by the driving unit (630). The second lens holder (39) may include a second lens barrel (39A) in which the third lens array (59) is arranged and a second support member (39B) coupled with the second lens barrel (39A). For example, the second lens barrel (39A) may have a barrel shape and may include an opening (39C) (or hole) for coupling the second lens array (49). A first side (or first surface) of the second support member (39B) may be coupled to the second lens barrel (39A). The second support member (39B) may correspond to, face, or overlap with the body (63A) of the second guide member (614B) in the third direction.

[0178] 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). For example, the second mounting portion (30B) may include a second mounting surface formed on 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 supporting protrusion protruding from the second mounting surface. The description of the first mounting surface (11A) and the first supporting protrusion (11B) of the first support member (29B) can be applied or applied to the second mounting surface and the second supporting protrusion of the second support member (29B).

[0179] 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). For example, at least one second groove (13B) may correspond to, be opposite to, or overlap at least one second guide groove (212B) of the second guide member (614B). The description of the first groove (13A) of the first support member (30A) may be applied or mutatis mutandis to the second groove (13B) of the second support member (30B).

[0180] The first and second guide grooves (212A, 212B) and the first and second grooves (13A, 13B) may each have a V or U shape, but are 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 units (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 angle of view from changing or the focus from being out of focus, so that the image quality or resolution of the camera device (200) can be significantly improved.

[0181] The actuator (310) may further include a cloud member (12A, 12B) disposed between the 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 housing (610) and the groove (13A, 13B) of the support member (39A, 39B) of the lens unit (620). The cloud member may be alternatively expressed as a “ball member”, “ball”, or “ball bearing”. For example, the cloud member (12A, 12B) may include at least one ball.

[0182] The cloud members (12A, 12B) can be in contact with the 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 housing (610) by performing a rolling motion between the lens unit (620) and the 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 members (614A, 614B) by coming into contact with the cloud members (12A, 12B).

[0183] 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 member (614A) of the housing (610) and the lens member (622) (e.g., the first support member (29B)). The second cloud member (12B) may be disposed between the second guide member (614B) of the housing (610) and the lens member (624) (e.g., the second support member (39B)).

[0184] 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).

[0185] Next, the driving unit (630) will be described.

[0186] The driving unit (630) can move the lens unit (622) in the first direction and move the lens unit (624) in the first direction. For example, the driving unit (630) can move at least one lens unit, for example, the lens unit (622) or the lens unit (624), in the first direction or the optical axis direction. The driving unit (630) can include a magnet (130) disposed in the lens unit (620) and a coil (120) disposed in the housing (610).

[0187] The magnet (130) may include a first magnet (130A) disposed in the lens unit (622) and a second magnet (130B) disposed in the lens unit (624). For example, the first magnet (130A) may be disposed in the first lens holder (29) of the lens unit (622), and the second magnet (130B) may be disposed in the second lens holder (39) of the lens unit (624). For example, the first magnet (130A) may be disposed in the first mounting portion (30A) of the first support portion (29B) of the first lens holder (29), and the second magnet (130B) may be disposed in the second mounting portion (30B) of the second support portion (39B) of the second lens holder (39). For example, each of the first and second magnets (130A, 130B) may be a unipolar magnet or a two-pole 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 or a four-pole magnet including two N poles and two S poles.

[0188] The coil (120) may include a first coil (120A) that corresponds to, opposes, or overlaps with the first magnet (130A) in a third direction and is disposed on a third side (142-3) of the housing (610), and a second coil (120B) that corresponds to, opposes, or overlaps with the second magnet (130B) in the third direction and is disposed on a fourth side (142-4) of the housing (610). For example, each of the first coil (120A) and the second coil (120B) may have a closed curve or ring shape having a hollow (or hole). For example, each of the first coil (120A) and the second coil (120B) may have a coil ring shape that is wound clockwise or counterclockwise about (or centered on) a third axis that is parallel to the third direction.

[0189] 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.

[0190] A first driving signal (e.g., a first current) may be applied to the first coil (120A), and a second driving signal (e.g., a second current) may be applied to the second coil (120B). The first lens unit (622) may be moved in the first direction by an electromagnetic force resulting from the interaction between the first coil (120A) and the first magnet (130A). In addition, the second lens unit (624) may be moved in the first direction by an electromagnetic force resulting from the interaction between the second coil (120B) and the second magnet (130B).

[0191] By controlling the first driving signal and the second driving signal, the movement of each of the first lens unit (622) and the second lens unit (624) can be controlled. As the movement of each of the first lens unit (622) and the second lens unit (624) is controlled, the position (or displacement) of each of the first lens unit (622) and the second lens unit (624) can be controlled, and thereby zooming and auto-focusing of the camera device (200) can be performed.

[0192] Referring to FIG. 18, the 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). The first yoke (19-1) may increase an electromagnetic force due to an interaction between the first magnet (130A) and the first coil (120A), and the second yoke (19-2) may increase an electromagnetic force due to an interaction between the second magnet (130B) and the second coil (120B). The driving force for moving the lens unit (620) may be improved by the first and second yokes (19-1, 19-2), thereby reducing power consumption. For example, the first yoke (19-1) may be disposed between the first magnet (130A) and the first lens holder (29), and the second yoke (19-2) may be disposed between the second magnet (130B) and the second lens holder (39). For example, the first yoke (19-1) may be disposed on the first mounting portion (30A) of the first support portion (29B), and the second yoke (19-2) may be disposed on the second mounting portion (30B) of the second support portion (39B). 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 part (19B) may include a 2-1 part supporting one end of the first magnet (130A) and a 2-2 part supporting the other end of the first magnet (130A).

[0193] The driving unit (630) may further include a substrate (190) electrically connected to the first coil (120A) and the second coil (120B). For example, the substrate (190) may be a printed circuit board. The substrate (190) may be disposed in the housing (610). For example, the substrate (190) may include a first circuit board (192) disposed on a third side (142-3) of the housing (610) and a second circuit board (194) disposed on a fourth side (142-4) of the housing (610). For example, the first circuit board (192) may include at least one hole (192A) for engaging with at least one first engaging protrusion (45A) of the housing (610), and the second circuit board (194) may include at least one hole (194A) for engaging with at least one second engaging protrusion (45B) of the housing (610).

[0194] The first coil (120A) may be arranged or mounted on a first surface of a 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 housing (610) in the third direction. The second coil (120B) may be arranged or mounted on a first surface of a 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 housing (610) in the third direction. 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 the first surface of the first circuit board (192). In addition, the first circuit board (192) may include a plurality of terminals (254A). For example, a plurality of terminals (254A) may be formed on a second surface of a 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).

[0195] 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). For example, the plurality of terminals (254b) may be formed on a 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, the terminals (254B) may be formed on the second surface of the second circuit board (194) in the same shape as the terminals (254a) of the first circuit board (192). 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).

[0196] The driving unit (630) may include a position sensor (170) for performing feedback driving for accurate zooming and AF operation. The position sensor (170) may include a first position sensor (71) for detecting the position or displacement of the lens unit (622) and a second position sensor (72) for detecting the position or displacement of the lens unit (624).

[0197] For example, the first position sensor (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 sensor (72) may be placed or mounted on the second circuit board (194) and may be electrically connected to the second circuit board (184). For example, the first position sensor (71) may be placed or mounted on the first surface of the first circuit board (192), and the second position sensor (72) may be placed or mounted on the first surface of the second circuit board (194). For example, the first position sensor (71) may be placed in the hollow of the first coil (120A), and the second position sensor (72) may be placed in the hollow of the second coil (120B).

[0198] For example, the first position sensor (71) may face or overlap the first magnet (130A) in the third direction. For example, the first position sensor (71) may be placed on the opposite side of the first magnet (130A). The first position sensor (71) may detect the strength of the magnetic field of the first magnet (130A). For example, the first position sensor (71) may detect the movement of the first magnet (130A) in the direction of the optical axis.

[0199] The second position sensor (72) may face or overlap the second magnet (130B) in the third direction. For example, the second position sensor (72) may be placed on the opposite side of the second magnet (130B). It may detect the strength of the magnetic field of the second magnet (130B). For example, the second position sensor (72) may detect the movement of the second magnet (130B) in the direction of the optical axis.

[0200] For example, the first position sensor (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 to be spaced apart from each other in a first direction. For example, the second position sensor (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 to be spaced apart from each other in a first direction.

[0201] In FIG. 15, each of the first position sensor (71) and the second position sensor (72) includes two sensors, but in other embodiments, each of the first position sensor and the second position sensor may include one sensor, wherein the one sensor may be in the form of a Hall sensor or a driver IC including a Hall sensor. In yet other embodiments, each of the first position sensor and the second position sensor may include three sensors or four sensors. In yet other embodiments, each of the first position sensor and the second position sensor may include five or more sensors.

[0202] The camera device (200) may include a memory (596) disposed on the substrate (190). For example, the memory (596) may be a non-volatile memory, such as an Electrically Erasable Programmable Read-Only Memory (EEPROM). For example, the memory (596) may be disposed or mounted on the second circuit board (194) and may be electrically connected to the second circuit board (194). 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).

[0203] For example, the memory (596) can store data required for driving the driving unit. At this time, the driving unit can include at least one of the driving unit (630) and the driving unit (70). For example, the memory (596) can store at least one of data of the first position sensor (71) corresponding to the movement range (or stroke section) of the lens unit (622) and data of the second position sensor (72) corresponding to the movement range (or stroke section) of the lens unit (624).

[0204] At this time, the data of the first position sensor (71) may be data (or reference code value) regarding the output of the first position sensor (71) corresponding to the movement range of the lens unit (622) obtained through calibration. In addition, the data of the second position sensor (72) may be data (or reference code value) regarding the output of the second position sensor (72) corresponding to the movement range of the lens unit (624) obtained through calibration.

[0205] In addition, 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 moving unit. 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 X-axis tilting range of the OIS moving unit obtained through calibration. In addition, 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 moving unit. 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 Y-axis tilting range of the OIS moving unit obtained through calibration. In other embodiments, the memory (596) may be omitted.

[0206] The camera device (200) may further include a temperature sensor (566) disposed on the 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. The actuator (310) may further include a glass (glass, 115) disposed in front of the lens unit (620). For example, the glass (115) may be disposed within the housing (610) to cover the first opening (41A) of the housing (610), and may protect the lens unit (620) and prevent foreign substances from entering the housing.

[0207] The image sensing unit (330) may include an image sensor (540) that receives and detects light passing through the optical member (40) of the actuator (320) and the lens units (640, 622, 624) of the actuator (310) and converts the detected light into an electrical signal.

[0208] 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 on which an image is formed. The image sensing unit (330) may include a substrate (530) electrically connected to the image sensor (540). The substrate (530) may be disposed to be spaced apart from the housing (610). For example, the substrate (530) may be expressed as a sensor substrate.

[0209] With respect to the housing (610), the substrate portion (250) can be placed in front of the housing (610), the substrate portion (530) can be placed in the rear of the housing (610), and the substrate portion (190) can be placed on the side of the housing (610).

[0210] The substrate (190) may be disposed on a first side (e.g., left or right) of the housing (610). For example, the first circuit board (192) may be disposed on a first side of the housing (610), and the second circuit board (192) may be disposed on a third side of the housing (610). The substrate (530) may be disposed on a second side (e.g., rear) of the housing (610). Additionally, the substrate (250) may be disposed on a fourth side of the 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.

[0211] The substrate (530) may include a first substrate (531) on which an image sensor (540) is arranged or mounted. The first substrate (531) may face the lens unit (620) in the optical axis direction. 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 actuator (310) or the lens unit (620). The first substrate (531) may also be expressed as a “sensor substrate.” The first substrate (531) may include a plurality of first terminals (253A) and a plurality of second terminals (253B). For example, a plurality of first terminals (253A) may be disposed between the image sensor (540) and a first end of the first substrate (531), and a 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. For example, the plurality of first terminals (253A) may correspond to, face, or overlap with the 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. 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 a plurality of terminals (254A) are formed may be an inclined portion that is bent or folded inward.

[0212] For example, the plurality of second terminals (253B) may correspond to, face, or overlap with the 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. 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.

[0213] The substrate portion (530) may include a second substrate (532) connected to the first substrate (531) and extending in a first direction. The second substrate (532) may include a plurality of terminals (252). The substrate portion (250) may be electrically connected to the 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 substrate portion (250) by a conductive adhesive or solder. For example, referring to FIGS. 12, 13A, and 13B, the second substrate (532) may be arranged to face the first circuit board (192) in a third direction, and may be arranged on a second surface of the first circuit board (192). For example, the substrate portion (530) may include a folded portion between the first substrate (532) and the second substrate (532).

[0214] The substrate portion (530) may include a connector (534) including a port or socket for electrically connecting with an external device. For example, the port or socket may be formed on at least one of the upper (top) or lower (bottom) surface of the connector. In addition, the substrate portion (530) may further include a third substrate (533) connecting the second substrate (532) and the connector (534). The 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. 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. The substrate (530) may be provided with circuit elements, passive elements, active elements, or circuit patterns.

[0215] The image sensing unit (330) may further include a driver IC (542). The driver IC (542) may be placed on the substrate unit (530). For example, the driver IC (542) may be placed or mounted on the first substrate (531). For example, the driver IC (542) may be placed between the image sensor (540) and a plurality of second terminals (253B).

[0216] The driver IC (542) can supply a first driving signal to the first coil (120A) and a second driving signal to the second coil (120B). The driver IC (542) can receive a first output signal of the first position sensor (71) and a second output signal of the second position sensor (72). The driver IC (542) can convert the received first output signal into analog-to-digital and generate a first code value. The driver IC (542) can control or adjust the first driving signal applied to the first coil (120A) based on a result of comparing the generated first code value with the first target value. For example, the first target value can be a reference code value corresponding to a target zoom position of the lens unit (622).

[0217] In addition, the driver IC (542) can perform analog-to-digital conversion on the received second output signal and generate a second code value. The driver IC can control or adjust 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 lens unit (624). The reference code value (or data) regarding the output of each of the first position sensor (71) and the second position sensor (72) may be preset through calibration and stored in a memory. The driver IC (542) may be expressed as a “control unit” or a “zoom and auto focus control unit”. In addition, each of the driver ICs (542, 260) may include a storage unit or a memory.

[0218] The image sensing unit (330) may further include a sensor base (550) disposed between the substrate unit (530) and the actuator (310) 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 substrate unit (530) and the housing (610). The sensor base (550) may be coupled, attached, or fixed to the first surface of the first substrate (531) by an adhesive (545). The lower portion or bottom surface of the sensor base (550) may be coupled to the first surface of the first substrate (531) by the adhesive (545). For example, at least one coupling protrusion (551) may be formed on the lower portion or bottom surface of the sensor base (550), and at least one hole (530A) may be formed on the first substrate (531) to be coupled with the at least one coupling protrusion (551). 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 housing (610) in a 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.”

[0219] The filter (560) is disposed 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 disposed on the bottom surface of the mounting portion (500A) of the sensor base (550). The sensor base (550) may include an opening (552) (or a through hole) so that light passing through the filter (560) may be incident on the image sensor (540). The opening (552) may correspond to, face, or overlap with 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.

[0220] 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.

[0221] The image sensing unit (330) may further include a reinforcing member (510) disposed on the 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). The reinforcing member (510) may be formed of a conductive material with high thermal conductivity, for example, a metal material. For example, the reinforcing member (510) may be formed of SUS, aluminum, or the like, but is not limited thereto. In addition, the reinforcing member (510) may be electrically connected to the ground terminal of the substrate unit (530), thereby acting as a ground to protect the camera device (200) from ESD (Electrostatic Discharge Protection). The image sensing unit (330) may further include a heat dissipation member (520) disposed or attached to the reinforcing member (510). For example, the heat dissipation member (52) can be attached to at least one of the first substrate (531) and the reinforcing material (510) and can perform a heat dissipation function.

[0222] The camera device (200) may further include a temperature sensor (566) for temperature compensation. The temperature sensor (566) may output temperature information based on the result of measuring the temperature of the camera device (200). The temperature information of the temperature sensor (566) may be used for temperature compensation for the focusing operation of the lens unit (622). For example, the camera device (200) may include a memory that stores a compensation value corresponding to the temperature information.

[0223] For accurate zooming and autofocus operation, the zoom position of the lens unit (622) and the focus position of the lens unit (624) must be set considering the distance (or separation distance) between the subject and the camera device (or lens). This setting process is called "calibration" or "zoom / focus calibration." The distance to the subject can be obtained using a distance measuring device (e.g., a laser diode) equipped in the camera device. For example, if the distance between the camera device (or user) and the subject is far, the zoom ratio can be set to a high magnification or changed to a high magnification. On the other hand, if the distance between the camera device and the subject is close, the zoom ratio can be set to a low magnification or changed to a low magnification. The stroke or displacement of the lens unit (622) can be set or changed based on the zoom magnification. The position at which the lens unit (622) is positioned or moved so as to realize an accurate zoom magnification in this way is called a "zoom position." Also, the position, displacement, or stroke of the lens unit (624) that allows the subject to be accurately focused at the “zoom position” of the lens unit (622) is referred to as the “focus position.” Therefore, the focus position may vary depending on the “zoom position” and distance information to the subject. For example, the zoom position may be set in a range from a low magnification (wide) position (e.g., 1x or 3x) to a high magnification position (e.g., 5x). The distance information to the subject may include infinity, macro, or a distance between infinity and macro. A focus position corresponding to each zoom position may be set through calibration. The camera device (200) may include a memory that stores data regarding the zoom position and the focus position. The driver IC (542) may store a first code value (or a first target value) of the first position sensor (71) corresponding to each of the zoom positions through calibration.Additionally, the driver IC (542) can store the second code value (or second target value) of the second position sensor (72) corresponding to the first code value (or first target value).

[0224] For example, the driver IC (542) may store data regarding specific sampling zoom positions and focus positions for specific sampling zoom positions. The driver IC (542) may obtain interpolated data regarding zoom positions and focus positions for other points located between specific sampling zoom points using interpolation. In another embodiment, the driver IC (542) may store data regarding zoom positions and focus positions in the form of an algorithm or mathematical formula.

[0225] Figure 19 illustrates a zooming and focus operation method according to an embodiment.

[0226] Referring to FIG. 19, the driver IC (542) obtains information regarding a zoom ratio (S110). Here, the zoom ratio information may be information regarding a zoom position of the lens unit (622) provided or input by the user.

[0227] Next, the driver IC (542) acquires data regarding a zoom position matching the input zoom ratio and data regarding a focus position corresponding to the zoom position (S120). The data regarding the zoom position may be information regarding the zoom position, and the data regarding the focus position may be information regarding the focus position. For example, FIG. 23 may be an example of data regarding the zoom position and data regarding the focus position.

[0228] Next, the driver IC (542) controls the movement of the lens unit (622), which is a zoom lens, using data regarding the zoom position (S130).

[0229] The driver IC (542) can generate a first driving signal to move the lens unit (622) to the first target position (Tx). The driver IC (542) can control or adjust the first driving signal (e.g., first driving current) supplied to the first coil (120A) so that the lens unit (622) can move to the first target position (Tx). For example, the driver IC (542) can adjust the first target value of the first position sensor (71), thereby adjusting or controlling the first driving signal (e.g., first driving current) supplied to the first coil (120A).

[0230] Fig. 20 shows a method for controlling the movement of a lens unit (622) according to an embodiment.

[0231] Referring to FIG. 20, the driver IC (542) divides the first target value of the first position sensor (71) to generate a plurality of first groups (S210). For example, the driver IC (542) may divide the first target value of the first position sensor (71) corresponding to the first target position into a plurality of first groups (G1 to GM, where M is a natural number greater than 1). At this time, the plurality of first groups (G1 to GM) may be generated for the purpose of divided driving of the first coil (120A).

[0232] The driver IC (542) can obtain a first target value of the first position sensor (71) that matches the zoom magnification information. For example, the first target value may be data (or a code value) corresponding to or matching a first output signal of the first position sensor (71) for moving the lens unit (622) to a target zoom position (or first target position). For example, the first target value may be transmitted to the driver IC (542) from an external device (e.g., an optical device (200A)) of the camera device by a user.

[0233] The driver IC (542) can generate first groups (G1 to GM) using the output of the first position sensor (71) and the first target value (Tx).

[0234] The driver IC (542) can generate a plurality of first groups (G1 to GM) by dividing data (or “first code value”) regarding the output of the first position sensor (71) at the zoom position of the lens unit (622) and code values ​​within a range from the first target value of the first position sensor (71) at the first target position of the lens unit (622). For example, the first code value may be data or code value generated according to the result of analog-to-digital conversion of the output signal of the first position sensor (71).

[0235] Fig. 21 illustrates a block diagram according to one embodiment of a driver IC (542). Referring to Fig. 21, the driver IC (542) may include a segmentation group generation unit (1002A) and a comparator (1002B).

[0236] The division group generation unit (1002A) can divide the first target value (Tx) into a plurality of first groups (G1 to GM), and can output a plurality of first groups (G1 to GM, M is a natural number > 1). Through calibration, the reference code values ​​of the first position sensor (71) can be set within a range from a minimum value (e.g., -2048) to a maximum value (e.g., +2048). The first target value can be set to any value within the range from the minimum value (e.g., -2048) to the maximum value (+2048). For example, the first target value can be expressed as a code value of n (a natural number where n is > 1, for example, n = 12) bits. The plurality of first groups (G1 to GM, M is a natural number > 1) can be expressed by replacing them with a "first division group".

[0237] The segmentation group generation unit (1002A) can receive the number of codes per unit time (SP) and the delay time (De). The driver IC (542) can store the number of codes per unit time (SP) and the delay time (De). In another embodiment, the driver IC (542) can also receive the number of codes per unit time (SP) and the delay time (De) from an external device (e.g., the control unit (780) of the optical device (200A)).

[0238] The segmentation group generation unit (1002A) can generate a plurality of first groups (G1 to GM) by dividing the code values ​​within the range from the first code value to the first target value (Tx) using a preset number of codes per unit time (SP) and a preset delay time (De). For example, the segmentation group generation unit (1002A) can generate a plurality of first groups by sequentially grouping the reference code values ​​within the range from the first code value to the first target value (Tx) by the preset number of codes per unit time.

[0239] SP may be defined as the number of codes per unit time included in each of the first groups (G1 to GM) generated based on the first target value. In addition, the delay time (De) may be defined as the delay time between two neighboring first groups (e.g., G1 and G2). For example, each of the first groups (G1 to GM) may be distinguished by the delay time (De) between the two neighboring first groups. In another embodiment, the delay time (De) may be zero (0).

[0240] The number of codes per unit time of each of the first groups (G1 to GM) may be at least 1. For example, the number of codes per unit time of each of the first groups (G1 to GM) may be 2 or more. The number of codes per unit time of each of the first groups (G1 to GM) may be the same. In another embodiment, the number of codes per unit time of at least one of the first groups (G1 to GM) may be different from the others.

[0241] For example, the number of codes per unit time may be a reference code value that increases or decreases over the unit time. Alternatively, for example, the number of codes per unit time may be a change in the reference code value per unit time. The number of codes per unit time may be set taking into account the response speed and zooming operation time of the lens unit (622).

[0242] Fig. 22 shows an example of the division groups (G1 to GM) of the first target value (Tx) generated by the driver IC (542) of Fig. 21, and Fig. 23 shows the relationship between the focus position of the lens unit (624) corresponding to the zoom position of the lens unit (622) obtained through calibration. Fig. 23 shows the correlation between the zoom position corresponding to the zoom magnification (ZP1 to ZP5) and the focus position (Mac1 to Mac5, InF1 to InF5).

[0243] Referring to FIGS. 22 and 23, a case is described where the distance information to the subject corresponds to Macro, and the lens unit (622) is moved from a zoom position (ZX1) corresponding to a zoom magnification (ZP2) to a first target position. For example, the first target position may be a zoom position (ZX2) corresponding to a zoom magnification (ZP4).

[0244] For example, the reference code value of the first position sensor (71) corresponding to the zoom position (e.g., ZX1) may be a1, and the reference code value of the first position sensor (71) corresponding to the first target position (e.g., ZX2) may be aN (a natural number where N>1). For example, a1 may be the reference code value corresponding to the output of the first position sensor (71). aN may be the first target value. In addition, for example, the number of codes per unit time (SP) may be 3 codes / 200 [μs], and the delay time (De) may be 200 [μs].

[0245] The driver IC (542) can generate first groups (G1 to GM) based on the first target value (aN) and the number of codes per unit time (SP). The reference code values ​​from the reference code value (a1) of the zoom position (e.g., ZX1) of the lens unit (622) to the first target value (aN) can be divided by the number of codes per unit time (SP), and the first groups (G1 to GM) can be generated based on the division result. For example, 900 reference code values ​​(a1 to aN, e.g., N=900) can be divided based on 3 codes / 200 [μs], and 300 first groups (G1 to GM, e.g., M=300) can be generated based on the division result. In addition, for example, a delay section (e.g., t1 to t2) equal to the delay time can exist between two neighboring first groups. The number of 300 first groups (G1 to GM) is only an example, and in other embodiments, the number of split groups (G1 to GM) may be two or more. Also, in other embodiments, the delay time (De) may not exist.

[0246] The driver IC (542) generates a first driving signal for moving the lens unit (622) based on a plurality of first groups (G1 to GM) (S220). The driver IC (542) can generate a first driving signal for driving the first coil (120A) based on the plurality of first groups (G1 to GM). For example, the first driving signal can be a driving current or a driving voltage. The driver IC (542) can compare reference code values ​​included in the plurality of first groups (G1 to GM) with a feedback value (St) and generate the first driving signal using the comparison result. For example, the driver IC (542) can generate a plurality of divided driving signals corresponding to the plurality of first groups (G1 to GM).

[0247] For example, the driver IC (542) compares the reference code values ​​included in the plurality of first groups (G1 to GM) with the feedback value (St) and generates an error value (ES) based on the comparison result. The comparator (1002B) can compare the reference code values ​​included in the plurality of groups (G1 to GM) with the feedback value (St) and generate an error value (ES). The movement distance and movement direction of the lens unit (622) can be determined by the error value (ES). The feedback value (St) can be an analog-to-digital converted value of the output of the first position sensor (71) by the driver IC (542).

[0248] The driver IC (542) can generate a control signal by applying a proportional control gain, an integral control gain, and a differential control gain to the error value (ES), and can generate a first driving signal (e.g., a first driving current) for driving the first coil (120A) based on the control signal. For example, the driver IC (542) can generate a control signal for causing the feedback value (St) to converge to the first target value.

[0249] In an embodiment, in order to move the lens unit (622) to the first target position, the first target value may be divided into a plurality of first groups (G1 to GM), and a first driving signal for driving the first coil (120A) may be generated based on each of the divided groups (G1 to GM). The first driving signal thus generated may have a step waveform. For example, the first driving signal supplied to the first coil (120A) may be a waveform that increases stepwise or / and decreases stepwise.

[0250] The driver IC (542) may generate an error value (ES) based on the result of comparing each of the plurality of first groups (G1 to GM) with a feedback value (St), and may generate a control signal based on the result of performing proportional, differential, and integral control on the error value (ES). For example, at least one of the error value (ES) and the control signal may match or correspond to the number of codes per unit time and the delay time of each of the first groups (G1 to GM). For example, the control signal may have a digital value that matches or corresponds to the number of codes per unit time and the delay time of the first groups (G1 to GM). The driver IC (542) may include a digital-to-analog converter that generates an analog signal based on the control signal, which is a digital value. For example, since the control signal has a digital value that matches or corresponds to the number of codes per unit time and the delay time of the first groups (G1 to GM), when the control signal is digitally converted to analog, a first driving signal having a waveform that increases or decreases stepwise may be generated.

[0251] For example, the step waveform may include a plurality of steps that gradually increase to reach a target current value corresponding to a first target position (or a first target value (Tx)). The plurality of steps of the driving current may correspond to a plurality of first groups (G1 to GM), and the waveform of each of the plurality of steps may be generated based on reference code values ​​included in the corresponding group. Each of the plurality of steps may include a curve. For example, each of the plurality of steps may include an overshoot, but the overshoot of each of the plurality of steps may be minimal to induce oscillation of the actuator (310).

[0252] Compared to a camera device without a zooming function, a camera device with a zooming function may have a longer stroke section or range in the direction of the optical axis. Since the stroke section is long, in order to increase the response speed of the drive of the zoom lens unit by the drive current of the zooming coil, the arrival time of the drive signal to the current value corresponding to the first target value, i.e., the settling time, must be shortened. However, shortening the settling time increases the overshoot of the drive signal, which may cause oscillation in the drive of the zoom lens unit, may cause a large collision between the zoom lens unit and the housing, and may deteriorate the zooming performance of the camera device.

[0253] As the movement range (or stroke section) of the zoom lens unit becomes longer, the range of the reference code value of the zoom-calibrated first position sensor corresponding to the movement range (or stroke section) may also increase, and the first target value of the first position sensor for moving to the first target position may also increase. When the first target value is large, a large overshoot may occur in the waveform of the driving current of the zooming coil generated based on the first target value, and when the overshoot of the driving current becomes large, oscillation of the actuator may be induced.

[0254] In an embodiment, a first driving signal for driving the lens unit (622) multiple times to a first target position of the lens unit (622) can be supplied to the first coil (120A), and overshoot of the first driving signal can be reduced, oscillation of the actuator (310) can be prevented, and stable zooming and AF operations can be performed. In this case, the divided driving may mean that the lens unit (622) is not driven to the first target position at once, but is driven to the first target position in multiple divided stages.

[0255] In an embodiment, rather than generating a driving current for driving the first coil (120A) by converting the first target value all at once into digital-to-analog, the first target value may be divided into a plurality of first groups, and a driving current having a step waveform may be generated based on the divided groups. In an embodiment, the first coil (120A) may be driven by a first driving signal having a step waveform, and oscillation of the actuator caused by overshoot of the first driving signal may be prevented.

[0256] Next, the driver IC (542) controls the movement of the lens unit (624), which is a focus lens, based on data regarding the focus position (S140).

[0257] The driver IC (542) can generate a second driving signal (e.g., a second driving current) to move the lens unit (624) to a second target position (Ty). For example, the driver IC (542) can control or adjust the second driving signal (e.g., a second driving current) supplied to the second coil (120B) so that the lens unit (624) can be moved to a second target position (Ty) corresponding to or matching the first target position. For example, the driver IC (542) can adjust the second target value (Ty) of the second position sensor (72), thereby adjusting or controlling the second driving signal (e.g., a second driving current) supplied to the second coil (120B). The focus position can be set to match or be linked to the zoom position.

[0258] The driver IC (542) can store information on the correlation between the zoom position and the focus position as shown in Fig. 23. The driver IC (542) can obtain the second target position (FY2) of the lens unit (624) corresponding to the first target position (ZX2) of the lens unit (622).

[0259] Referring to FIG. 23, the focus position corresponding to the zoom position (ZX1) may be “FY1”, and the focus position corresponding to the first target position (ZX2) may be FY2. For example, when the lens unit (622) moves from the zoom (ZX1) position to the target position (ZX2), the lens unit (624) may move from the focus position (FY1) to the focus position (FY2).

[0260] Fig. 24 shows a method for controlling movement of a lens unit (624) according to an embodiment, and Fig. 25 shows one embodiment of division groups (M1 to MK) of a second target value (Ty).

[0261] Referring to FIGS. 23 to 25, the driver IC (542) can store information on the correlation between the zoom position and the focus position shown in FIG. 23. The driver IC (542) obtains the second target value (Ty) of the second position sensor (72) corresponding to the first target value (Tx) of the first position sensor (71) (S310).

[0262] The reference code value of the second position sensor (72) corresponding to the focus position (FY1) may be b1, and the reference code value of the second position sensor (72) corresponding to the second target position (FY2) may be bR (a natural number where R>1). For example, b1 may be the reference code value corresponding to the output of the second position sensor (72). For example, bR may be the second target value.

[0263] Next, it is determined whether the split driving condition for the second coil (120B) is satisfied (S320). For example, the split driving condition may be determined based on zoom magnification information (e.g., ZP1, ZP2, ZP3, ZP4, ZP5).

[0264] The split driving condition can be set when the change in zoom magnification is large or the degree of change in zoom position is large. When the difference in the zoom magnification before and after the change is greater than or equal to a preset value (e.g., 2), the split driving condition can be satisfied. When the difference between the zoom magnification of the current position (e.g., ZX1) (e.g., ZP1 is 1x) and the zoom magnification of the first target position (e.g., ZX2) (e.g., ZP4 is 4x) is greater than or equal to a preset value (e.g., 2), the split driving condition can be satisfied. Or, for example, in another embodiment, the preset value may be 3 or 4.

[0265] In another embodiment, the split driving condition may be determined based on the first target value. For example, when the difference (aN-a1) between the first code value (a1) of the first position sensor (71) corresponding to the zoom position (e.g., ZX1) and the first target value (aN) of the first position sensor (71) corresponding to the first target position (e.g., ZX2) is greater than or equal to a preset code value, the split driving condition may be satisfied. In the embodiment of Fig. 22, the split driving condition may be satisfied. For example, the preset code value may be a difference in the code value of the first position sensor (71) corresponding to the difference in the preset zoom magnification described above (e.g., 2).

[0266] In another embodiment, the split driving condition may be determined by a first movement distance of the lens unit (622) to a first target position of the lens unit (622) or a second movement distance of the lens unit (624) to a second target position according to a change in the zoom magnification. For example, the split driving condition may be satisfied when the first movement distance (or the second movement distance) is greater than or equal to a preset distance value. Additionally, the split driving condition may not be satisfied when the first movement distance (or the second movement distance) is less than the preset distance value. For example, the preset distance may be a first movement distance of the lens unit (622) (or a second movement distance of the lens unit (622)) corresponding to a difference in the preset zoom magnification.

[0267] If the difference in the zoom ratio before and after the change is less than a preset value, the split driving condition is not satisfied. If the split driving condition is not satisfied, the driver IC (542) generates a second driving signal (e.g., a second driving current) corresponding to the second target value (Ty) (S350).

[0268] If the split condition is not satisfied, the lens unit (624) can be continuously moved to the second target position (FY2) at once. That is, the driver IC (542) can compare the second target value (Ty) with the feedback value and generate an error value according to the comparison result. At this time, the feedback value may be a code value (“second code value”) generated according to the result of the analog-to-digital conversion of the output of the second position sensor (72). For example, the second target value (Ty) may be data (or code value) corresponding to or matching the second output signal of the second position sensor (72) for moving the lens unit (624) to the target zoom position (or second target position (FY2)). For example, the second target value (Ty) may be data (or code value) of the second position sensor (624) for moving the lens unit (624) to the second target position (FY2) of the lens unit (624) corresponding to the first target position (ZX2) of the lens unit (622).

[0269] The driver IC (542) can generate a control signal by applying a proportional control gain, an integral control gain, and a differential control gain to the error value, and can generate a second driving signal (e.g., a second driving current) for driving the second coil (120B) based on the control signal. For example, the driver IC (542) can generate a control signal for causing the feedback value to converge to the second target value.

[0270] When the split driving condition is satisfied, the driver IC (542) generates a plurality of second groups (M1 to MK, K is a natural number > 1) based on the second target value (Ty) (S330). The driver IC (542) can divide the second target value (Ty) into a plurality of second groups (M1 to MK). At this time, the plurality of second groups (M1 to MK) can be generated for the purpose of split driving of the second coil (120B). The plurality of second groups (M1 to MK) can also be expressed as "second split groups" instead.

[0271] The driver IC (542) can generate second groups (M1 to MK, natural numbers where K>1) using the output of the second position sensor (72) and the second target value.

[0272] The driver IC (542) can generate a plurality of second groups (M1 to MK, where K is a natural number > 1) by dividing data (or “second code value”) regarding the output of the second position sensor (72) at the focus position of the lens unit (624) and code values ​​within the range up to the second target value of the second position sensor (72) at the second target position of the lens unit (624). For example, the second code value may be data or code value generated according to the result of analog-to-digital conversion of the output signal of the second position sensor (72).

[0273] The description of the generation of the plurality of first groups (G1 to GM) of FIGS. 20 and 21 can be applied or analogized to the plurality of second groups (M1 to MK, natural numbers where K>1) of FIG. 25.

[0274] The driver IC (542) can divide the second target value (Ty) into a plurality of second groups (M1 to MK) and output a plurality of second groups (M1 to MK, M>1 being a natural number). For example, through calibration, the reference code values ​​of the second position sensor (72) can be set within a range from a minimum value (e.g., -2048) to a maximum value (e.g., +2048). The second target value can be set to any value within the range from the minimum value (e.g., -2048) to the maximum value (+2048). For example, the second target value can be expressed as a code value of n (a natural number where n>1, e.g., n=12) bits.

[0275] The driver IC (542) can store the number of codes per unit time and the delay time for generating the second groups (M1 to MK). In another embodiment, the driver IC (542) can also receive the number of codes per unit time and the delay time for generating the second groups (M1 to MK) from an external device (e.g., the control unit (780) of the optical device (200A)).

[0276] The driver IC (542) can generate a plurality of second groups (M1 to MK) by dividing the code values ​​within the range from the second code value to the second target value (Ty) using a preset number of codes per unit time and a preset delay time. For example, the driver IC (542) can generate a plurality of second groups (M1 to MK) by sequentially grouping the reference code values ​​within the range from the second code value to the second target value (Ty) by the preset number of codes per unit time. At this time, the number of codes per unit time can be defined as the number of codes per unit time included in each of the second groups (M1 to MK) generated based on the second target value. In addition, the delay time (e.g., t11 to t12) can be defined as the delay time between two neighboring second groups (e.g., M1 and M2). For example, each of the second groups (M1 to MK) can be distinguished by the delay time between two neighboring groups. In other embodiments, the delay time may be zero (0). The description of the delay time and number of codes per unit time in FIG. 22 may be applied or analogized to the delay time and number of codes per unit time in FIG. 25.

[0277] The number of codes per unit time of each of the second groups (M1 to MK) may be at least 1. For example, the number of codes per unit time of each of the second groups (M1 to MK) may be 2 or more. The number of codes per unit time of each of the second groups (M1 to MK) may be the same. In another embodiment, the number of codes per unit time of at least one of the second groups (M1 to MK) may be different from the others. For example, the number of codes per unit time of the second groups (M1 to MK) may be a reference code value that increases or decreases during the unit time. Alternatively, for example, the number of codes per unit time of the second groups (M1 to MK) may be a change amount of the reference code value per unit time. The number of codes per unit time may be set in consideration of the response speed and the zooming operation time of the lens unit (624).

[0278] For example, the preset number of codes per unit time (hereinafter referred to as “the second number of codes per unit time”) of the plurality of second groups (M1 to MK) may be the same as the preset number of codes per unit time (hereinafter referred to as “the first number of codes per unit time”) of the plurality of first groups (G1 to GM). In other embodiments, the number of codes per second unit time may be different from the number of codes per first unit time. For example, the number of codes per second unit time may be greater than the number of codes per first unit time. In yet other embodiments, the number of codes per second unit time may be less than the number of codes per first unit time.

[0279] Also, for example, the delay time (hereinafter referred to as “first delay time”) of the plurality of first groups (G1 to GM) may be the same as the delay time (hereinafter referred to as “second delay time”) of the plurality of second groups (M1 to MK). In other embodiments, the first delay time may be different from the second delay time. For example, the first delay time may be greater than the second delay time. In other embodiments, the first delay time may be less than the second delay time.

[0280] A plurality of second groups (M1 to MK) for the second target value (Ty) may be generated to correspond to or match the plurality of first groups (G1 to GM) for the first target value (Tx). The number of second groups (M1 to MK) may be less than or equal to the number of first groups (G1 to GM).

[0281] FIG. 26 illustrates an embodiment of divided zoom positions (X1 to X300), a first divided group (G1 to G300), divided focus positions (Y1 to Y300), and a second divided group.

[0282] Referring to FIG. 26, in CASE1, the second segment groups (M1 to M300) may be generated to be one-to-one matched with the first segment groups (G1 to G300). For example, the number of the second segment groups (M1 to M300) may be the same as the number of the first segment groups (G1 to G300). In CASE1, segmented focus positions (Y1 to Y300) may be set to match each of the segmented zoom positions (X1 to X300) that fall between the zoom position (ZX1) and the first target position (ZX2). The driver IC (542) may generate a driving signal for segmenting and driving the lens unit (624) using a plurality of second segment groups (M to M300). The lens unit (624) may be sequentially moved to the focus positions (Y1 to Y300). At the focus positions (Y1 to Y300), the autofocus operation of the camera device (200) can be performed, and the subject can be accurately focused. Accordingly, in CASE1, second segmentation groups are created to match each of the first segmentation groups, so that the performance of the autofocus operation can be improved.

[0283] In CASE2 and CASE3, the second partition groups (S1 to S150 or W1 to W100) may be generated to have a smaller number than the first partition groups (G1 to G300). In CASE2 and CASE3, each of the second partition groups (S1 to S150 or W1 to W100) may include two or more partition groups among the second partition groups (M1 to M300) of CASE1.

[0284] Among the second partition groups (M1 to M300) of CASE1, two or more adjacent second partition groups can be sequentially grouped into one group to create new second partition groups. In FIG. 26, the number of partition groups grouped among the second partition groups (M1 to M300) is described as two or three as an example, but in other embodiments, the number of partition groups grouped may be four or more and may be smaller than the number of the second partition groups (M1 to M300) of CASE1.

[0285] In CASE2, the driver IC (542) can generate a driving signal for driving the lens unit (624) in a divided manner using a plurality of second division groups (S1 to S150). The lens unit (624) can be sequentially moved to focus positions (Y2, Y4, Y6, …, Y300). At the focus positions (Y2, Y4, Y6, …, Y300), the auto-focusing operation of the camera device (200) can be performed, and an accurate focus on the subject can be set. In addition, in CASE3, the driver IC (542) can generate a driving signal for driving the lens unit (624) in a divided manner using a plurality of second division groups (W1 to W100). The lens unit (624) can be sequentially moved to focus positions (Y3, Y6, Y9, …, Y300). At the focus positions (Y3, Y6, Y9…Y300), the auto-focusing operation of the camera device (200) can be performed, and an accurate focus can be set on the subject. In CASE2 and CASE3, the number of auto-focusing points is reduced compared to CASE1, but the speed of the auto-focusing operation can be improved. In CASE2 and CASE3, some of the focus positions (Y1 to Y300) of CASE1 can be selected.

[0286] Next, the driver IC (542) generates a second driving signal based on the plurality of groups (M1 to MK) (S340). The driver IC (542) can generate a second driving signal for driving the second coil (120B) based on the plurality of groups (M1 to MK). For example, the second driving signal can be a driving current or a driving voltage. The driver IC (542) can compare the reference code values ​​and the feedback value included in the plurality of second groups (M1 to MK) and generate the second driving signal using the comparison result.

[0287] For example, the driver IC (542) compares the reference code values ​​included in the plurality of second groups (M1 to MK) with the feedback value and generates an error value based on the comparison result. The driver IC (542) can determine the movement distance and movement direction of the lens unit (624) based on the error value. The feedback value can be an analog-to-digital converted value of the output of the second position sensor (72) by the driver IC (542). The driver IC (542) can generate a control signal by applying a proportional control gain, an integral control gain, and a differential control gain to the error value, and can generate a second driving signal for driving the second coil (120A) based on the control signal. For example, the driver IC (542) can generate a plurality of divided driving signals corresponding to the plurality of second groups (M1 to MK).

[0288] In an embodiment, in order to move the lens unit (624) to the second target position, the second target value may be divided into a plurality of second groups (M1 to MK), and a second driving signal for driving the second coil (120B) may be generated based on each of the second groups (M1 to MK). The second driving signal thus generated may have a step waveform. For example, the second driving signal supplied to the second coil (120B) may be a waveform that increases stepwise or / and decreases stepwise.

[0289] The driver IC (542) may generate an error value based on the result of comparing the feedback value with each of the plurality of second groups (M1 to MK), and may generate a control signal based on the result of performing proportional, differential, and integral control on the error value. For example, at least one of the error value and the control signal may match or correspond to the number of codes per unit time and the delay time of each of the second groups (M1 to MK). For example, the control signal may have a digital value that matches or corresponds to the number of codes per unit time and the delay time of the second groups (M1 to MK). The driver IC (542) may include a digital-to-analog converter that generates an analog signal based on the control signal, which is a digital value. For example, since the control signal has a digital value that matches or corresponds to the number of codes per unit time and the delay time of the second groups (M1 to MK), when the control signal is digitally converted to analog, a driving current having a waveform that increases or decreases stepwise may be generated.

[0290] For example, the step waveform may include a plurality of steps that gradually increase to reach a target current value corresponding to a second target position (or a second target value (Ty)). The plurality of steps of the driving current may correspond to a plurality of second groups (M1 to MK), and the waveform of each of the plurality of steps may be generated based on reference code values ​​included in the corresponding group. Each of the plurality of steps may include a curve. For example, each of the plurality of steps may include an overshoot, but the overshoot of each of the plurality of steps may be minimal to induce oscillation of the actuator (310).

[0291] In the embodiment, reference code values ​​within a range from a code value of a first position sensor at a current zoom position to a first target value can be divided based on a preset number of codes per unit time to generate a plurality of groups, and a driving current having a step waveform can be generated based on the generated groups over time, and a first coil (120A) of an actuator (310) can be driven with the driving current having the step waveform. In the embodiment, overshoot of the driving current of the first coil (120A) can be reduced, oscillation of the actuator (310) can be prevented, and stable zooming and AF operations can be performed.

[0292] When the zoom ratio changes significantly from high (or low) to low (or high) magnification, the focus lens's response speed may be slower than that of the zoom lens. This may cause the camera device's image to momentarily go out of focus, cause the autofocus function to malfunction, and possibly cause other subjects to be recognized.

[0293] The driver IC (542) divides the first target value (Tx) to generate first division groups (G1 to GM) to move the lens unit (622) to the first target position (ZX2), and generates a first driving signal for driving the first coil (120A) using the first division groups (G1 to GM). By the first driving signal, the lens unit (622) can be divided and moved to the divided zoom positions (e.g., X1 to X300), and the lens unit (622) can reach the first target position (ZX2).

[0294] In addition, the driver IC (542) divides the second target value (Ty) to generate second groups (M1 to MK) to move the lens unit (624) to a second target position (FY2) corresponding to or matching the first target position (ZX2), and generates a second driving signal for driving the second coil (120B) using the second groups (M1 to MK). By the second driving signal, the lens unit (624) can be moved to the divided focus positions (e.g., Y1 to Y300), and the lens unit (624) can reach the second target position (FY2). In an embodiment, the divided driving can be performed up to the second target position (FY2), and thus, a focusing operation can be performed at the divided focus positions, and thus, auto focus can be implemented in a continuous zoom operation section. Therefore, in the embodiment, when the zoom ratio is changed from high magnification (or low magnification) to low magnification (or high magnification), the phenomenon of the image of the camera device being momentarily out of focus can be suppressed or prevented, and the malfunction of the auto focus function can be prevented.

[0295] In addition, in the embodiment, as described in FIG. 24, when the split driving condition is satisfied, split driving of the focus lens (624) can be performed. For example, when the change in the zoom magnification is small, the lens unit (622) can be split-driven to split-move to the first target position, and the lens unit (624) can be directly moved to the second target position. As a result, in the embodiment, selective split driving of the focus lens unit can be possible, and the speed of the zoom and auto focus operations can be increased.

[0296] In another embodiment, steps S320 and S350 in FIG. 24 may be omitted. That is, steps S310, S330, and S340 may be performed without determining the split driving condition.

[0297] 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.

[0298] Fig. 27 shows a perspective view of an optical device (200A) according to an embodiment, and Fig. 28 shows a configuration diagram of the optical device (200A) illustrated in Fig. 28.

[0299] Referring to FIGS. 27 and 28, 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).

[0300] The body (850) illustrated in Fig. 27 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.

[0301] 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).

[0302] 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.

[0303] The camera (721) may include a camera device (200) according to an embodiment.

[0304] 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.

[0305] 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).

[0306] 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.

[0307] 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.

[0308] 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).

[0309] 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.

[0310] 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.

[0311] 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.

[0312] 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.

[0313] 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).

[0314] 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.

[0315] 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).

[0316] 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 actuator (320), the 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. 25. That is, the actuator (320), the actuator (310), and the image sensing unit (330) may be arranged in a 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.

[0317] 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.

[0318] The embodiments can be used in actuators, camera devices and optical devices that can suppress or prevent the phenomenon of an image being momentarily out of focus when the zoom magnification is changed.

Claims

1. Zoom lens unit and focus lens unit arranged in the direction of the optical axis; A first position sensor that detects the position of the zoom lens unit; A second position sensor that detects the position of the focus lens unit; and A control unit that generates a first driving signal for moving the zoom lens unit to a first target position and a second driving signal for moving the focus lens unit to a second target position, The above control unit, Divide the first target value of the first position sensor corresponding to the first target position into a plurality of first groups, and generate the first driving signal based on the first groups, An actuator that divides the second target value of the second position sensor corresponding to the second target position into a plurality of second groups and generates the second driving signal based on the second groups.

2. In paragraph 1, Each of the above second groups is an actuator corresponding to one of the above first groups.

3. In paragraph 2, The positions of the focus lens parts matching the second groups are actuators corresponding to the focus positions.

4. In paragraph 1, The above first groups are generated by dividing the reference code values ​​within the range from the reference code value to the first target value regarding the output of the first position sensor using the preset number of codes per first unit time, The above second groups are actuators generated by dividing the reference code values ​​within the range from the reference code value to the second target value regarding the output of the second position sensor using the preset number of codes per second unit time.

5. In paragraph 1, The above control unit, Generating the first groups using the output of the first position sensor and the first target value, An actuator that generates the second groups using the output of the second position sensor and the second target value.

6. In paragraph 1, The number of actuators in the second groups is less than or equal to the number of actuators in the first groups.

7. In paragraph 1, An actuator wherein the first driving signal has a step waveform corresponding to the plurality of first groups, and the second driving signal has a step waveform corresponding to the plurality of second groups.

8. In paragraph 1, There is a preset first delay time between two neighboring first groups among the plurality of first groups, An actuator in which a preset second delay time exists between two adjacent second groups among the plurality of second groups.

9. Zoom lens unit and focus lens unit arranged in the direction of the optical axis; A first position sensor that detects the position of the zoom lens unit; A second position sensor that detects the position of the focus lens unit; and A control unit is included that moves the zoom lens unit to a first target position based on a zoom magnification, and moves the focus lens unit to a second target position corresponding to the first target position. The above control unit, Divide the first target value of the first position sensor corresponding to the first target position into a plurality of first groups, and generate a first driving signal for driving the zoom lens unit based on the first groups, An actuator that divides the second target value of the second position sensor corresponding to the second target position into a plurality of second groups when the difference in the zoom magnification before and after the change is greater than a preset value, and generates the second driving signal based on the second groups.

10. In paragraph 9, An actuator that generates the second driving signal based on the second target value when the difference between the zoom magnification before and after the change is less than a preset value.

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