KR20220011519A - Camera actuator and camera module including the same - Google Patents

Abstract

A camera actuator according to an embodiment includes: a housing; a prism unit disposed in the housing; a pressing unit disposed between the housing and the prism unit; a driving unit tilting the prism unit; and a substrate connected to the driving unit. The pressing unit may include: a first pulling member disposed on the prism unit; and a second pulling member disposed on the substrate to face the first pulling member and electrically connected to the substrate.

Description

A camera actuator and a camera module including the same

This embodiment relates to a camera actuator and a camera module.

The camera module captures a subject and stores it as an image or video, and is installed in various devices such as mobile terminals such as cell phones, laptops, drones, and vehicles.

In general, the device described above is equipped with a miniature camera module, and the camera module can perform an autofocus (AF) function of automatically adjusting the distance between the image sensor and the lens to align the focal lengths of the lenses. In addition, the camera module may perform a zooming function of zooming up or zooming out by increasing or decreasing the magnification of a distant subject through a zoom lens. .

Meanwhile, a zoom actuator is used for a zooming function in the camera module. However, friction torque is generated when the lens is moved due to the mechanical movement of the actuator, and problems such as a decrease in driving force, an increase in power consumption, and a decrease in control characteristics occur due to the friction torque.

In particular, in order to derive the best optical characteristics by using a plurality of zoom lens groups in the camera module, not only align between the plurality of lens groups but also the plurality of lens groups and the image sensor Alignment must be good, but the angle of view changes when the center of the spherical surface between the lens groups deviates from the optical axis, tilt, which is a lens inclination phenomenon, or the lens group and the central axis of the image sensor are not aligned. In addition, there is a problem in that image quality or resolution is deteriorated due to defocusing.

In addition, in the case of increasing the separation distance in the area where friction occurs in order to reduce friction torque resistance when moving the lens for the zoom function in the camera module, the lens decentre or the lens during zoom movement or reversal of the zoom movement There is a technical problem that the tilt deepens.

In addition, recent camera modules employ image stabilization (IS) technology to correct or prevent image stabilization due to camera movement caused by an unstable fixing device or a user's movement.

Such image stabilization (IS) technology includes an optical image stabilizer (OIS) technology and an image stabilization prevention technology using an image sensor. Here, OIS technology is a technology that corrects motion by changing the path of light, image shake prevention technology using an image sensor is a technology that compensates movement in a mechanical and electronic way, and OIS technology is being adopted more recently. .

Meanwhile, the camera module may include a reflective member capable of changing a path of light to implement the OIS function, a mover on which the reflective member is disposed, and a driving unit that moves the mover to change the position of the reflective member. In detail, the camera module may change the path of light by controlling the position of the reflective member with the driving force applied from the driving unit. The position of the reflective member may be controlled by using a VCM (Voice Coil Motor) type driving unit including a coil and a magnet as the driving unit.

In this case, the camera module includes a mover and a housing accommodating the mover, and a pulling member is disposed between the housing and the mover. The pulling member provides a pressing force between the lower jig and the mover, so that the mover can be supported by the housing in a pressed state, and can be moved by the driving unit in the supported state.

Meanwhile, in the related art, a magnet and a yoke are used as the pulling member. However, when the center position between the pulling member composed of the magnet and the yoke as described above is misaligned, an external force is generated by this, and accordingly, the mover on which the reflective member is disposed cannot be accurately moved to the desired position. Occurs.

In addition, in the camera module, various electronic components for OIS control are mounted on a board. At this time, among the electronic components, there is also an electronic component composed of a magnetic material. Accordingly, in the related art, in addition to the attractive force between the magnet and the yoke, an additional attractive force is generated between the magnet and the electronic component of the magnetic body, and there is a problem in that the mover cannot be accurately controlled to a desired position by the generated additional attractive force.

Therefore, a new camera module capable of solving the above-described problem is required.

The embodiment provides a camera actuator capable of using an electronic component included in the camera module as a pulling member and a camera module including the same.

In addition, the embodiment provides a camera actuator capable of minimizing interference between an electronic component composed of a magnetic material and a magnet used as a pulling member, and a camera module including the same.

In addition, an embodiment is to provide a camera actuator and a camera module capable of having improved optical properties.

In addition, the embodiment is to provide a camera actuator and a camera module that can effectively control the vibration generated by hand shake.

In addition, the embodiment intends to provide a camera actuator and a camera module that can be implemented in a small size having a small volume.

In addition, an embodiment is to provide a camera actuator and a camera module having improved autofocus and high magnification zoom functions.

In addition, the embodiment intends to provide a camera actuator and a camera module capable of preventing problems such as de-centering, tilting, and friction occurring when a lens group is moved.

The technical problem to be solved in the embodiment is not limited to the technical problem mentioned above, and another technical problem not mentioned will be clearly understood by those of ordinary skill in the art to which the present invention belongs from the description below. will be able

A camera actuator according to an embodiment includes a housing; a prism unit disposed in the housing; a pressing part disposed between the housing and the prism unit; a driving unit for tilting the prism unit, and a substrate connected to the driving unit, wherein the pressing unit includes: a first pulling member disposed on the prism unit; and a second pulling member disposed on the substrate to face the first pulling member and electrically connected to the substrate.

In addition, the first pulling member includes a magnet, and the second pulling member includes a first electronic component disposed on the substrate.

In addition, the first electronic component includes a capacitor having a magnetism.

In addition, the substrate is disposed outside the housing, the housing includes a housing hole formed in a region corresponding to the second pulling member, and at least a portion of the second pulling member is disposed in the housing hole.

In addition, the substrate includes a substrate region in which the second pulling member is disposed, and the housing includes a seating groove formed in a region corresponding to the substrate region.

In addition, it includes a moving plate disposed between the prism unit and the housing and pressed against the housing together with the prism unit by the pressing unit.

In addition, the prism unit, a prism mover having a receiving portion; and a prism disposed in the receiving portion of the prism mover, wherein the moving plate is disposed between the prism mover and the opposite surfaces of the housing.

In addition, the moving plate includes a hole formed in a region corresponding to the first pulling member and the second pulling member, and the first pulling member and the second pulling member directly face each other with the hole therebetween. are placed

In addition, the moving plate includes a plurality of first moving protrusions disposed on a first surface facing the prism mover, and a second moving protrusion disposed on a second surface facing the housing, The center of the hole of the moving plate is included in a region connecting the centers of the first and second moving protrusions.

In addition, a first imaginary straight line connecting the plurality of first moving protrusions to each other is orthogonal to a second imaginary straight line connecting the plurality of second moving protrusions to each other.

In addition, the center of the hole of the moving plate is located at a point where the virtual first straight line and the virtual second straight line intersect.

In addition, the housing includes a plurality of first recesses corresponding to the plurality of second moving protrusions of the moving plate, and the center of the hole of the housing is on an imaginary straight line connecting the centers of the plurality of first recesses. is located in

In addition, the prism mover includes a second recess corresponding to the first pulling member and a plurality of third recesses corresponding to the plurality of first moving protrusions of the moving plate, and the center of the second recess is It is positioned on an imaginary straight line connecting the centers of the plurality of third recesses.

In addition, the substrate includes a first sub-region facing the side of the housing and a second sub-region other than the first sub-region, and the driving unit includes a second electronic component disposed in the second sub-region do.

In addition, the second electronic component includes a capacitor.

The camera actuator and the camera module according to the embodiment may reduce the number of parts, thereby reducing the manufacturing cost. That is, in the embodiment, an electronic component disposed on the substrate is used as one configuration of the pressing unit for pressing the prism unit to the housing. Specifically, the embodiment uses a magnetic electronic component disposed on the substrate as the second pulling member constituting the pressing unit. Specifically, the embodiment uses a magnetic capacitor disposed on the substrate 200 as the second pulling member constituting the pressing unit. According to this, in the embodiment, a separate magnet or yoke constituting the second pulling member can be deleted, and thus the manufacturing cost can be reduced.

In addition, the camera actuator and the camera module according to the embodiment may improve OIS operation reliability. That is, in the embodiment, when the capacitor disposed on the substrate is not a pressurizing part, an external force due to an attractive force generated between the magnet constituting the pressurizing part and the capacitor is generated, and accordingly, a problem may occur in OIS operation reliability. . Alternatively, in the embodiment, as the capacitor is used as a pulling member, an external force generated in the capacitor may be removed, and thus OIS operation reliability may be improved.

In addition, the camera actuator and the camera module according to the embodiment may have improved optical properties. That is, the first actuator in the embodiment may include a plurality of capacitors for the OIS operation. In this case, a part of the capacitor is used as the second pulling member constituting the pressing part of the embodiment. That is, among the electronic components in the embodiment, the capacitor may be divided into a first electronic component used as the second pulling member 620 and a second electronic component other than the first electronic component. In addition, the second electronic component may be disposed on the substrate in an area that does not overlap the first pulling member or the magnet part of the driving part. That is, when the second electronic component is a capacitor, an external force may be generated between the magnet part or the first pulling member of the pressing part by the capacitor being magnetic. Accordingly, in the embodiment, the second electronic component is disposed in a region that does not overlap with the first pulling member or the magnet portion of the driving unit, thereby removing the external force generated by the second electronic component, and thus may have improved optical properties.

1 is a perspective view of a first camera actuator according to an embodiment.
FIG. 2 is an exploded perspective view of the first camera actuator shown in FIG. 1 .
3 is a perspective view of a partial configuration of an image shake control unit of a first camera actuator.
4 is a perspective view of a substrate of a first camera actuator viewed from a first direction.
5 is a perspective view of a substrate portion of the first camera actuator viewed from the second direction.
6 is a view for explaining a pressing unit disposed on the substrate portion of the first camera actuator.
7 is an exploded perspective view of a substrate unit and a driving unit of the first camera actuator.
8 to 10 are perspective views of a housing of a camera actuator according to an embodiment.
11 to 13 are views of a prism unit of a first camera actuator.
14 is a front perspective view of a moving plate constituting a first camera actuator.
15 is a rear perspective view of a moving plate constituting a first camera actuator.
16 to 18 are diagrams illustrating a coupling relationship between a housing, a prism unit, a pressing unit, and a moving plate in the first camera actuator.
19 and 20 are exemplary views of the operation of the first camera actuator according to the embodiment.
21 is a perspective view of a camera module according to an embodiment.
22 is a perspective view in which some components are omitted from the camera module according to the embodiment.
23 is an exploded perspective view of a second camera actuator according to an embodiment.
24 is a cross-sectional view of a second camera actuator according to an embodiment.
25 is a front view of a second camera actuator according to an embodiment.
26 is a perspective view illustrating third and fourth driving units disposed in a housing in the second camera actuator according to the embodiment.
27 and 28 are exploded perspective views of first and second driving units of a second camera actuator according to an embodiment.
29 is a perspective view of a partial configuration of the second camera actuator according to the embodiment.
30 is a perspective view of a mobile terminal to which a camera module according to an embodiment is applied.
31 is an external view of a vehicle having a vehicle driving assistance device to which a camera module according to an embodiment is applied.

Hereinafter, preferred embodiments of the present invention will be described in detail with reference to the accompanying drawings.

However, the technical spirit of the present invention is not limited to some embodiments described, but may be implemented in various different forms, and within the scope of the technical spirit of the present invention, one or more of the components may be selected between the embodiments. It can be used by combining or substituted with .

In addition, terms (including technical and scientific terms) used in the embodiments of the present invention may be generally understood by those of ordinary skill in the art to which the present invention belongs, unless specifically defined and described explicitly. It may be interpreted as a meaning, and generally used terms such as terms defined in advance may be interpreted in consideration of the contextual meaning of the related art.

In addition, the terminology used in the embodiments of the present invention is for describing the embodiments and is not intended to limit the present invention. In this specification, the singular form may also include the plural form unless otherwise specified in the phrase, and when it is described as "at least one (or one or more) of A and (and) B, C", it is combined with A, B, C It may include one or more of all possible combinations.

In addition, in describing the components of the embodiment of the present invention, terms such as first, second, A, B, (a), (b), etc. may be used. These terms are only for distinguishing the component from other components, and are not limited to the essence, order, or order of the component by the term. And, when it is described that a component is 'connected', 'coupled' or 'connected' to another component, the component is not only directly connected, coupled or connected to the other component, but also with the component It may also include a case of 'connected', 'coupled' or 'connected' due to another element between the other elements.

In addition, when it is described as being formed or disposed on "above (above) or below (below)" of each component, the top (above) or bottom (below) is one as well as when two components are in direct contact with each other. Also includes a case in which another component as described above is formed or disposed between two components. In addition, when expressed as "upper (upper) or lower (lower)", a meaning of not only an upper direction but also a lower direction based on one component may be included.

An optical axis direction used below may be defined as an optical axis direction of a lens coupled to a camera actuator and a camera module, and a vertical direction may be defined as a direction perpendicular to the optical axis.

The autofocus function used below is a function that automatically focuses on a subject by adjusting the distance from the image sensor by moving the lens in the optical axis direction according to the distance of the subject so that a clear image of the subject can be obtained on the image sensor. can be defined

Meanwhile, auto focus may correspond to AF (Auto Focus). In addition, closed-loop auto focus (CLAF) control is defined as real-time feedback control of the lens position by sensing the distance between the image sensor and the lens to improve focus adjustment accuracy. can do.

In addition, before the description of the embodiment of the present invention, the first direction may mean the x-axis direction shown in the drawings, the second direction may be a different direction from the first direction. For example, the second direction may mean a y-axis direction shown in the drawing in a direction perpendicular to the first direction. Also, the third direction may be different from the first and second directions. For example, the third direction may mean a z-axis direction shown in the drawing in a direction perpendicular to the first and second directions. Here, the third direction may mean an optical axis direction.

Hereinafter, the configuration of the camera module according to the present embodiment will be described with reference to the drawings.

1 is a perspective view of a first camera actuator according to an embodiment, and FIG. 2 is an exploded perspective view of the first camera actuator shown in FIG. 1 . The first camera actuator 1000 may be an optical image stabilizer (OIS) actuator. The first camera actuator 1000 may change the path of the light incident on the camera module 10 .

1 and 2 , the first camera actuator 1000 includes a housing 100 , image shake control units 200 and 300 disposed on the housing 100 , and the image shake control units 200 and 300 . ) may include a prism unit 400 disposed on the.

In addition, the first camera actuator 1000 may further include a cover member (not shown). The cover member (not shown) may include an accommodating space therein, and at least one side surface may be open. For example, the cover member may be disposed to surround the outer surface of the housing. Preferably, the image shake control units 200 and 300 may be partially disposed on the outer surface of the housing 100 . Also, the cover member may be disposed to surround a portion of the image shake control units 200 and 300 disposed on the outer surface of the housing 100 . Accordingly, the cover member may protect the image shake control units 200 and 300 , the housing 100 , and the prism unit 400 . The cover member may have a structure in which a plurality of side surfaces connected to each other are opened. In detail, the cover member may have a structure in which a front surface through which light is incident from the outside, a lower surface corresponding to the first camera actuator 1000, and a rear surface opposite to the front surface are open, and the prism unit 400 to be described later. A light movement path may be provided.

The cover member may include a rigid material. For example, the cover member may include a material such as resin or metal, and may support the housing 100 disposed in the accommodation space. For example, the cover member is disposed to surround the housing 100 , the image shake control units 200 , 300 , and the prism unit 400 , and may support the components.

In detail, the prism unit 400, which will be described later, may be moved in a first direction and/or a second direction by the image shake control units 200 and 300 . In this case, the cover member can fix the housing 100 and the image shake control units 200 and 300 at a set position, thereby providing a more accurate light movement path. In addition, the cover member prevents the prism unit 400 from being stably supported by the housing 100 by the pressing unit 500 while the housing 100 moves out of the first camera actuator 1000 . can be prevented The cover member may be omitted depending on the arrangement relationship of the housing 100 , the image shake control units 200 and 300 , and the prism unit 400 .

Meanwhile, the image shake control units 200 and 300 may include a substrate 200 and a driving unit 300 . The driving unit 300 may include a coil unit 310 , a magnet unit 320 , a yoke unit 330 , and a position sensor unit 340 .

Also, the first camera actuator 1000 may include a moving plate 500 disposed between the housing 100 and the prism unit 400 . The moving plate 500 allows the prism unit 400 to be tilted with respect to the housing 100 in a first axis and a second axis direction perpendicular to the first axis, respectively.

Also, the first camera actuator 1000 may include a pressing unit 600 . The pressing unit 600 may include a first pulling member 610 and a second pulling member 620 . The first pulling member 610 may be disposed on the prism unit 400 . The second pulling member 620 may be disposed on the housing 100 . Specifically, the second pulling member 620 may be disposed on the substrate 200 of the image shake control unit 200 , 300 . The first pulling member 610 and the second pulling member 620 may press the prism unit 400 to the housing 100 . For example, an attractive force may be generated between the first pulling member 610 and the second pulling member 620 . And, by the attractive force, the prism unit 400 may be supported by the housing 100 in a pressurized state.

Hereinafter, each configuration of the first camera actuator 1000 according to the embodiment will be described in detail.

3 to 15 are perspective views of each configuration of the first camera actuator according to the embodiment.

The first camera actuator 1000 according to the embodiment includes the housing 100 , the image shake control units 200 and 300 , the prism unit 400 , the moving plate 500 , and the pressing unit 600 . can do.

In detail, the image shake control units 200 and 300 may include a substrate 200 , a coil unit 310 , a magnet unit 320 , a yoke unit 330 , and a position sensor unit 340 .

In addition, the prism unit 400 may include a prism 400b and the prism mover 400a.

In addition, the pressing unit 600 may include a first pulling member 610 and a second pulling member 620 . An attractive force may be generated between the first pulling member 610 and the second pulling member 620 , and the prism unit 400 may be supported by the first housing 100 in a pressurized state.

According to the embodiment, by having the image shake control units 200 and 300 disposed on the housing 100, there is a technical effect that can provide an ultra-slim and ultra-small camera actuator and a camera module including the same.

In addition, according to the embodiment, by disposing the image shake control units 200 and 300 on the lower side of the prism unit 400, there is a technical effect that can secure sufficient light quantity by solving the size limitation of the lens in the lens assembly of the optical system when OIS is implemented. .

In addition, according to the embodiment, by providing the image shake control units 200 and 300 stably arranged on the housing 100 to control the tilting of the prism unit 400 to the first axis or the second axis, the OIS is implemented. There is a technical effect that minimizes the occurrence of a center (decent) or tilt (tilt) phenomenon to produce the best optical characteristics.

In addition, according to the embodiment, unlike moving a plurality of existing solid lenses, the image shake control units 200 and 300 are provided to control the tilting of the prism unit 400 in the first axis or the second axis, thereby reducing consumption by implementing OIS. There is a technical effect that enables OIS implementation with power.

Hereinafter, each configuration of the first camera actuator 1000 will be described in detail with reference to the drawings.

<Image shake control unit>

3 is a perspective view of a partial configuration of the image shake control unit of the first camera actuator, FIG. 4 is a perspective view of the substrate of the first camera actuator viewed from the first direction, and FIG. 5 is the substrate of the first camera actuator in the second direction is a perspective view viewed from , FIG. 6 is a view for explaining a pressing unit disposed on the substrate unit of the first camera actuator, and FIG. 7 is an exploded perspective view of the substrate unit and the driving unit of the first camera actuator.

3 to 7 , the image shake control units 200 and 300 may include a substrate 200 and a driving unit 300 .

Also, the driving unit 300 may include a coil unit 310 , a magnet unit 320 , a yoke unit 330 , and a position sensor unit 340 . Some components of the driving unit 300 may be disposed on the substrate 200 . In addition, some other components of the driving unit 300 may be disposed on the outer surface of the prism unit 400 facing the inner surface of the substrate 200 . For example, the coil unit 310 and the position sensor unit 340 of the driving unit 300 may be disposed on the inner surface of the substrate 200 . In addition, the magnet unit 320 and the yoke unit 330 of the driving unit 300 may be disposed on the prism unit 400 . Specifically, the magnet unit 320 and the yoke unit 330 of the driving unit 300 may be disposed on the prism mover 400a of the prism unit 400 .

The substrate 200 may be connected to a predetermined power supply unit (not shown) to apply power to the coil unit 310 disposed on the substrate 200 .

The board 200 may include a circuit board having a wiring pattern that can be electrically connected, such as a rigid printed circuit board (Rigid PCB), a flexible printed circuit board (Flexible PCB), and a rigid flexible printed circuit board (Rigid Flexible PCB). have.

For example, the substrate 200 may include a hard region and a flexible region. For example, the gyro sensor 270 or the driver IC 280 may be mounted on the substrate 200 . Also, in the substrate 200 , a region in which the gyro sensor 270 or the driver IC 280 is mounted may be configured as a rigid region. In addition, the substrate 200 may include a region in which the coil unit 310 , the position sensor unit 340 , and the second pulling member 620 are disposed. In addition, in the substrate 200 , an area in which the coil unit 310 , the position sensor unit 340 , and the second pulling member 620 are disposed may be configured as a flexible area. The flexible region of the substrate 200 may be bent to correspond to the shape or curvature of the outer surface of the housing 100 , and thus may be stably disposed on the housing 100 .

The coil unit 310 of the driving unit 300 may be disposed on the substrate 200 . The coil unit 310 may be electrically connected to the substrate 200 . The coil unit 310 may include one or a plurality of coil units.

The coil unit 310 may include a first coil unit 311 , a second coil unit 312 , and a third coil unit 313 .

The first to third coil parts 311 , 312 , and 313 may be spaced apart from each other. For example, a region in which the first to third coil units 311 , 312 , and 313 are disposed among the entire region of the substrate 200 may have a 'C' shape.

Specifically, the substrate 200 may include a first substrate region 210 , a second substrate region 220 , a third substrate region 230 , and a fourth substrate region 240 .

A first coil unit 311 of the plurality of coil units 310 may be disposed on the first substrate region 210 . The first substrate region 210 may be a first-side region of the substrate 200 . For example, the first substrate region 210 may be a left region of the substrate 200 . The first substrate region 210 may correspond to the first side portion 110 of the housing 100 to be described later. For example, the first substrate region 210 may be a region facing the first side portion 110 of the housing 100 . For example, the first substrate region 210 may be a region disposed outside the first side portion 110 of the housing 100 .

A second coil unit 312 among the plurality of coil units 310 may be disposed in the second substrate region 220 . The first substrate region 210 may be a second side region of the substrate 200 . For example, the second substrate region 220 may be a right region of the substrate 200 . The second substrate region 220 may correspond to the second side portion 120 of the housing 100 to be described later. For example, the second substrate region 220 may be a region facing the second side portion 120 of the housing 100 . For example, the second substrate region 220 may be a region disposed outside the second side portion 120 of the housing 100 .

A second pulling member 620 of the pressing part 600 may be disposed in the third substrate area 230 . The third substrate region 230 may be a third side region of the substrate 200 . For example, the third substrate region 230 may be a rear region of the substrate 200 . The third substrate region 230 may correspond to the third side portion 130 of the housing 100 to be described later. For example, the third substrate region 230 may be a region facing the third side portion 130 of the housing 100 . For example, the third substrate region 230 may be a region disposed outside the third side portion 130 of the housing 100 . In this case, the substrate 200 in the camera actuator of the comparative example includes only the first substrate region 210 , the second substrate region 220 , and the fourth substrate region 240 .

In this case, the substrate 200 of the camera actuator 1000 in the embodiment may further include a third substrate region 230 connecting the first substrate region 210 and the second substrate region 220 . The third substrate region 230 is not directly connected to the first substrate region 210 and the second substrate region 220 . That is, the substrate 200 in the embodiment has a structure in which the first substrate region 210 , the second substrate region 220 , and the fourth substrate region 240 are separated from each other around the fourth substrate region 240 . can have For example, the substrate 200 includes the first substrate region 210 extending upward from the first side end of the fourth substrate region 240 constituting the bottom portion. In addition, the substrate 200 includes a second substrate region 220 extending upwardly from a second side end of the fourth substrate region 240 facing the first side end. In addition, the substrate 200 includes a third substrate region 230 extending upwardly from a third side end of the fourth substrate region 240 between the first side end and the second side end. The third substrate region 230 may be spaced apart from the first substrate region 210 and the second substrate region 220 . That is, the first substrate region 210 , the second substrate region 220 , and the third substrate region 230 may be connected to each other through the fourth substrate region 240 , but are not directly connected to each other.

A third substrate region 230 of the plurality of coil units 310 may be disposed in the fourth substrate region 240 . The fourth substrate region 240 may be a lower region of the substrate 200 . For example, the fourth substrate region 240 may be a bottom portion of the substrate 200 . The fourth substrate region 240 may be a region facing the fourth side portion 140 of the housing 100 , which will be described later. For example, the fourth substrate region 240 may be a region disposed outside the fourth side portion 140 of the housing 100 .

Meanwhile, the first substrate region 210 , the third substrate region 230 , and the fourth substrate region 240 of the substrate 200 may be flexible regions. Also, the second substrate region 220 of the substrate 200 may be a rigid region.

Accordingly, the gyro sensor 270 and the driver IC 280 may be disposed in the second substrate region 220 of the substrate 200 . The driver IC 280 may receive detection information obtained from the gyro sensor 270 and recognize a hand-shake state using the received detection information. Also, the driver IC 280 may control the magnitude of the current or voltage applied to the coil unit 310 based on the recognized hand-shake state.

The gyro sensor 270 may be disposed on an outer surface of the second substrate region 220 . Accordingly, the gyro sensor 270 may be exposed to the outside from the first camera actuator 1000 . The driver IC 280 may be disposed on an inner surface of the second substrate region 220 . The outer and inner surfaces of the second substrate region 220 may refer to opposite surfaces of the second substrate region 220 . In addition, a second electronic component 260 may be disposed on the second substrate region 220 . The second electronic component 260 may be a capacitor, but is not limited thereto. For example, the second electronic component 260 may be a memory in which control information for controlling the magnitude of the current or voltage supplied to the coil unit 310 based on the hand-shake state is stored. Also, the terminal 250 may be disposed in the second substrate region 220 of the substrate 200 . The terminal 250 may be a terminal for electrically connecting the main board (not shown) of the camera module and the board 200 of the first camera actuator 1000 to each other.

Meanwhile, although it has been described that the gyro sensor 270 and the driver IC 280 are disposed in the second substrate region 220 of the substrate 200 in the embodiment, the present invention is not limited thereto. For example, the gyro sensor 270 and the driver IC 280 may be disposed in the first substrate region 210 facing the second substrate region 220 .

In addition, the first coil unit 311 and the second coil unit 312 may be respectively disposed on the first substrate region 210 and the second substrate region 220 of the substrate 200 facing each other. have. Also, the third coil unit 313 may be disposed in a fourth substrate region 240 that is a connection region connecting the first substrate region 210 and the second substrate region 220 of the substrate 200 . .

Also, the driving unit 300 may include a magnet unit 320 opposite to the coil unit 310 . The magnet unit 320 may include a first magnet 321 , a second magnet 322 , and a third magnet 323 disposed in regions corresponding to the plurality of coil units 310 . Such a magnet unit 320 may be disposed to correspond to the coil unit 310 . Specifically, the magnet unit 320 may be disposed on the side of the prism mover 400a of the prism unit 400 in a region corresponding to each coil unit.

For example, the prism mover 400a may include a first side portion 410 corresponding to the first coil portion 311 . In addition, the first magnet 321 may be disposed on the first side portion 410 of the prism mover 400a. The prism mover 400a may include a second side portion 420 corresponding to the second coil portion 312 . In addition, the second magnet 322 may be disposed on the second side portion 420 of the prism mover 400a. The prism mover 400a may include a fourth side part 440 corresponding to the third coil part 313 . In addition, the third magnet 323 may be disposed on the fourth side portion 440 of the prism mover 400a.

In addition, the driving unit 300 in the embodiment may include a yoke unit 330 . The yoke unit 330 may stably fix the magnet unit 320 . The yoke part 330 may be disposed to correspond to the magnet part 320 . For example, the yoke unit 330 may be configured in plurality to correspond to the magnet unit 320 in 1:1 correspondence.

For example, the yoke unit 330 may include a first yoke 331 disposed to correspond to the first magnet 321 at the first side portion 410 of the prism mover 400a. For example, the yoke unit 330 may include a second yoke 332 disposed to correspond to the second magnet 322 at the second side portion 420 of the prism mover 400a. For example, the yoke unit 330 may include a third yoke 333 disposed to correspond to the third magnet 323 at the fourth side portion 440 of the prism mover 400a.

Also, the driving unit 300 may include a position sensor unit 340 . The position sensor unit 340 may be disposed in an inner region of the coil unit 310 .

The position sensor unit 340 may be connected to the driver IC 280 and transmit position detection information to the driver IC 280 . The position sensor unit 340 may be a magnetic sensor capable of detecting a change in magnetic force. The position sensor unit 340 may detect a change in magnetic force according to the tilt of the prism unit 400 . The position sensor unit 340 may obtain position information of the prism unit 400 by detecting a change in magnetic flux according to the movement of the magnet unit 320 .

The position sensor unit 340 may be, for example, a Hall sensor, but is not limited thereto.

The position sensor unit 340 may be disposed on each substrate 200 . Preferably, the position sensor unit 340 may be disposed adjacent to the coil unit 310 on the substrate 200 . The position sensor unit 340 may be configured in plurality.

The position sensor unit 340 may include a first position sensor 341 disposed adjacent to the first coil unit 311 in the first substrate region 210 of the substrate 200 . Also, the position sensor unit 340 may include a second position sensor 342 disposed adjacent to the second coil unit 312 in the second substrate region 220 of the substrate 200 . In addition, the position sensor unit 340 includes a third position sensor 343 and a fourth position sensor 344 disposed adjacent to the third coil unit 313 in the fourth substrate region 240 of the substrate 200 . ) may be included.

Meanwhile, the substrate 200 includes a third substrate region 230 . The third substrate region 230 of the substrate 200 may be a region disposed on the outer surface of the third side portion 130 of the housing 100 . That is, the third substrate region 230 of the substrate 200 may correspond to the third side portion 130 of the housing 100 . One configuration of the pressing unit 600 may be disposed in the third substrate region 230 of the substrate 200 . For example, a second pulling member 620 may be disposed in the third substrate region 230 of the substrate 200 . In this case, the second pulling member 620 may be electrically connected to the substrate 200 . The second pulling member 620 may be an electronic component. Specifically, the second pulling member 620 may be an electronic component having a magnetism electrically connected to the substrate 200 . For example, the second pulling member 620 may be a capacitor. In the third substrate region 230 of the substrate 200 , a plurality of capacitors corresponding to the second pulling member 620 may be disposed at regular intervals.

Preferably, the first pulling member 610 of the pressing part 600 may be disposed on the prism unit 400 . As will be described later, the first pulling member 610 of the pressing part 600 may be disposed on the third side part 530 of the prism mover 400a. The third side portion 530 of the prism mover 400a may correspond to the third side portion 130 of the housing 100 . Also, the third side portion 530 of the prism mover 400a may correspond to the third substrate region 230 of the substrate 200 . Accordingly, the first pulling member 610 and the second pulling member 620 of the pressing unit 600 correspond to each other on the prism mover 400a and the third substrate region 230 of the substrate 200 . can be placed. That is, the first pulling member 610 and the second pulling member 620 are the prism mover 400a and the third substrate area 230 in the third side part 130 of the housing 100 and will be described later. It may be disposed facing each other with the moving plate 500 interposed therebetween. This will be further described in detail below.

Meanwhile, a hole may be formed in each substrate region of the substrate 200 .

Specifically, a plurality of 1-1 holes 211 may be formed in the first substrate region 210 of the substrate 200 . Also, a plurality of 1-2 holes 221 may be formed in the second substrate region 220 of the substrate 200 . Also, a plurality of 1-3 holes 231 may be formed in the third substrate region 230 of the substrate 200 . Also, a plurality of 1-4 holes 241 may be formed in the fourth substrate region 240 of the substrate 200 . The 1-1 hole 211 , the 1-2 hole 221 , the 1-3 hole 231 , and the 1-4 hole 241 attach the substrate 200 to the housing 100 . It may be a coupling hole for coupling. For example, protrusions (described later) corresponding to the plurality of holes may be formed in the housing 100 . In addition, the 1-1 hole 211 , the 1-2 hole 221 , the 1-3 hole 231 , and the 1-4 hole 241 of the substrate 200 are formed in the housing 100 . It can be inserted into the projection formed on the. Accordingly, the position of the substrate 200 may be fixed on the housing 100 .

Meanwhile, the image shake control units 200 and 300 may further include a lower plate 200a. The lower plate 200a may be a lower cover of the camera actuator. The lower plate 200a may function to secure rigidity of the substrate 200 . The lower plate 200a is not essential, and may be optionally omitted.

<Housing>

8 to 10 are perspective views of a housing of a camera actuator according to an embodiment.

8 to 10 , the housing 100 may include an accommodation space for accommodating the prism unit 400 . The housing 100 may include a plurality of side portions. For example, the housing 100 may include a first side portion 110 corresponding to the first substrate region 210 of the substrate 200 and a second substrate region 220 corresponding to the second substrate region 220 of the substrate 200 . The second side portion 120 , the third side portion 130 corresponding to the third substrate region 230 of the substrate 200 , and the fourth side portion 140 corresponding to the fourth substrate region 240 of the substrate 200 . ) may be included.

In detail, the housing 100 includes a first side part 110 corresponding to the first coil part 311, a second side part 120 corresponding to the second coil part 312, and the second pulling member ( It may include a third side part 130 corresponding to the 620 and a fourth side part 140 corresponding to the third coil part 313 . The housing 100 may have a hexahedral shape, but is not limited thereto. However, the housing 100 may have a plurality of side portions, and at least two open regions (not shown) may be formed between the plurality of side portions. One of the two open areas may correspond to a light inlet that provides light to the prism unit 400 . In addition, the other one of the two open areas may be an area corresponding to the light output unit that provides the light reflected from the prism unit 400 to the lens unit (to be described later) of the second camera actuator.

The housing 100 may include a plurality of housing holes. The housing hole may be a through hole penetrating the inner surface and the outer surface of each side of the housing 100 . The plurality of housing holes may include first to fourth housing holes.

The housing 100 may include a first housing hole 111 . The first housing hole 111 may be a hole penetrating the inner surface and the outer surface of the first side part 110 of the housing 100 .

The housing 100 may include second housing holes 121 and 122 . The second housing holes 121 and 122 may be holes penetrating the inner and outer surfaces of the second side portion 120 of the housing 100 . The second housing hole may include a 2-1 th housing hole 121 and a 2-2 th housing hole 122 that are spaced apart from each other.

The housing 100 may include a third housing hole 134 . The third housing hole 134 may be a hole penetrating the inner and outer surfaces of the third side portion 130 of the housing 100 .

The housing 100 may include a fourth housing hole 141 . The fourth housing hole 141 may be a hole penetrating the inner and outer surfaces of the fourth side portion 140 of the housing 100 .

Some of the plurality of housing holes may be formed in a region corresponding to the coil unit 310 . Also, another part of the plurality of housing holes may be formed in a region corresponding to the driver IC 280 . In addition, the remaining part of the plurality of housing holes may be formed in a region corresponding to the second pulling member 620 of the pressing part 600 .

The first housing hole 111 may be formed in a region corresponding to the first coil unit 311 . The first housing hole 111 may have a size and shape corresponding to the first coil unit 311 . Accordingly, a part or the whole of the first coil part 311 may be inserted into the first housing hole 111 to be disposed.

The 2-1 th housing hole 121 may be formed in a region corresponding to the second coil unit 312 . The 2-1 housing hole 121 may have a size and shape corresponding to the second coil unit 312 . Accordingly, part or all of the second coil unit 312 may be inserted into the 2-1 housing hole 121 to be disposed.

The 2-2nd housing hole 122 may be formed in a region corresponding to the driver IC 280 . The 2-2nd housing hole 122 may have a size and shape corresponding to the driver IC 280 . Accordingly, part or all of the driver IC 280 may be inserted into the 2-2 housing hole 122 to be disposed.

The third housing hole 134 may be formed in a region corresponding to the second pulling member 620 . The third housing hole 134 may have a size and shape corresponding to the second pulling member 620 . Accordingly, the second pulling member 620 may be disposed to be partially or entirely inserted into the third housing hole 134 .

The fourth housing hole 141 may be formed in a region corresponding to the third coil unit 313 . The fourth housing hole 141 may have a size and shape corresponding to the third coil unit 313 . Accordingly, the third coil unit 313 may be partially or entirely inserted into the fourth housing hole 141 .

The housing 100 may include a seating groove 135 .

The seating groove 135 may be formed in a region corresponding to the third substrate region 230 of the substrate 200 . That is, the seating groove 135 may be formed on the outer surface of the third side portion 130 of the housing 100 . The seating groove 135 may be a seating portion on which the third substrate region 230 is mounted. The seating groove 135 may reduce the separation distance between the first pulling member 610 and the second pulling member 620 constituting the pressing part 600, thereby increasing the mutual attraction force. let it be

That is, each side of the housing 100 has a predetermined thickness. In this case, the housing 100 may be formed by injection molding. And, for the sake of terminology of injection, the respective side portions may have the same thickness as each other.

In this case, the second pulling member 620 is an electronic component electrically connected to the substrate 200 . For example, the second pulling member 620 is a capacitor electrically connected to the substrate 200 . At this time, the capacitor has a specification according to the product, and has a predetermined height accordingly. Here, when a magnetic material such as a general yoke is used as the second pulling member, the thickness of the yoke may be manufactured to match the thickness of the housing 100 . Unlike this, the second pulling member 620 in the embodiment is an electronic component such as a capacitor, and accordingly, it is difficult to design its thickness or height to match the thickness of the side of the housing 100 . Accordingly, in the embodiment, a seating groove in which the third substrate region 230 of the substrate 200 is disposed on the outer surface of the third side portion 130 of the housing 100 in which the second pulling member 620 is disposed. (135) is formed. Accordingly, in the embodiment, it is possible to reduce the distance between the first pulling member 610 and the second pulling member 620 by the depth of the seating groove 135, and to increase the attractive force corresponding thereto. have.

Meanwhile, a plurality of protrusions may be formed on the outer surface of each side of the housing 100 . The plurality of protrusions may correspond to holes formed in each substrate region of the substrate 200 .

That is, a first protrusion (not shown) may be formed on the outer surface of the first side portion 110 of the housing 100 . The first protrusion may correspond to the plurality of 1-1 holes 211 formed in the first substrate region 210 of the substrate 200 .

In addition, a second protrusion 123 may be formed on the outer surface of the second side portion 120 of the housing 100 . The second protrusion 123 may correspond to the plurality of 1-2 holes 221 formed in the second substrate region 220 of the substrate 200 .

In addition, a third protrusion 136 may be formed on the outer surface of the third side portion 130 of the housing 100 . The third protrusion 136 may be formed on an outer surface of the seating groove 135 among the outer surfaces of the third side portion 130 . The third protrusion 136 may correspond to the plurality of 1-3 holes 231 formed in the third substrate region 230 of the substrate 200 .

In addition, a fourth protrusion (not shown) may be formed on the outer surface of the fourth side portion 140 of the housing 100 . The fourth protrusion may correspond to the plurality of 1-4 holes 241 formed in the fourth substrate region 240 of the substrate 200 .

The first to fourth protrusions may be coupling protrusions for stably coupling the substrate 200 to the outer surface of the housing 100 . When the substrate 200 is coupled to the housing 100 , the first to fourth protrusions may be inserted into holes formed in each substrate region of the substrate 200 .

The housing 100 may include at least one recess.

For example, a first recess 131 may be formed on at least one inner surface of the housing 100 . The first recess 131 may be formed on an inner surface of the third side portion 130 of the housing 100 . Preferably, the first recess 131 is a third side portion of the third substrate region 230 and the prism mover 400a in which the first pulling member 610 and the second pulling member 620 are disposed. It may be formed in a region corresponding to 430 .

The third side portion 430 of the prism mover 400a may be an area in which the moving plate 500 corresponding to the rotation axis for tilting the prism unit 400 in the first axis and the second axis direction is disposed.

The first recess 131 may have a groove shape concave from the inner surface to the outer surface of the third side portion 130 of the housing 100 . The first recess 131 may have a concave shape from the inner surface of the third side portion 130 of the housing 100 to the outer surface direction (z-axis direction) of the third side portion 130 .

The first recess 131 may be a seating portion on which the moving plate 500 is mounted. The first recess 131 may provide a space in which a second moving protrusion (to be described later) disposed on the second surface of the moving plate 500 is seated or inserted.

The first recesses 131 may be disposed to be spaced apart from each other in the first direction (x-axis direction) with respect to the center of the inner surface of the third side part 130 . That is, the first recess 131 includes a first sub-first recess 132 spaced apart from the center of the inner surface of the third side part 130 along the -x axis and disposed along the +x axis. The second sub-first recesses 133 may be spaced apart from each other. In this case, the center of the third housing hole 134 may be located on an imaginary straight line connecting the centers of the first sub-first recess 132 and the second sub-first recess 133 . .

That is, the first recess 131 may include a plurality of sub-recesses spaced apart from each other in the first direction with respect to the central region of the third side portion 130 of the housing 100 . Here, the third housing hole 134 may be formed in a central region of the third side portion 130 . Accordingly, the first recesses 131 may be disposed to be spaced apart from each other in the first direction with respect to the third housing hole 134 .

On the other hand, the second substrate region 220 of the substrate 200 may be formed in areas other than the 2-1 th region 220a and the 2-1 th region 220a facing the second side portion 120 of the housing 100 . It may include a 2-2nd region 220b.

In addition, as described above, the second electronic component 260 may be disposed in the second substrate region 220 of the substrate 200 . In this case, the second electronic component 260 may be a memory as described above, but may also be a capacitor.

That is, the first actuator in the embodiment may include a plurality of capacitors for the OIS operation. In this case, a part of the capacitor is used as the second pulling member 620 constituting the pressing part 600 of the embodiment. In addition, it may be difficult to use all of the plurality of capacitors provided for the OIS operation as the second pulling member 620 . That is, the space in which the second pulling member 620 is disposed is limited, and accordingly, it may be difficult to arrange all of the plurality of capacitors in the limited space. Accordingly, among the electronic components in the embodiment, the capacitor may be divided into a first electronic component used as the second pulling member 620 and a second electronic component 260 other than the second pulling member 620 . .

In addition, the second electronic component 260 may be disposed in the 2-2 region 220b of the second substrate region 220 . That is, when the second electronic component 260 is a capacitor, the capacitor is magnetic, thereby reducing the external force between the magnet unit 320 or the first pulling member 610 of the pressing unit 600 . can cause Accordingly, in the embodiment, by disposing the second electronic component 260 in the 2-2 region 220b of the second substrate region 220 of the substrate 200 as described above, the magnet part 320 as described above ) and the first pulling member 610 constituting the pressing part 600 can be removed from the external force that may occur.

In addition, the center of the hole 530 of the moving plate 500 is the center of the plurality of first moving protrusions 511 disposed on the first surface 510 in the first direction, and the second surface 520 . It may be included in a region connecting the centers of the second moving protrusions 521 disposed in a second direction perpendicular to the first direction on the first direction.

Specifically, a first imaginary straight line connecting the centers of the plurality of first moving protrusions 511 to each other is orthogonal to a second imaginary straight line connecting the centers of the plurality of second moving protrusions 521 to each other. can do.

Also, the first straight line and the second straight line may cross each other. In addition, the center of the hole 530 of the moving plate 500 may be located in a region where the first straight line and the second straight line intersect each other.

<Prism Unit>

11 to 13 are views of the prism unit 400 of the first camera actuator 1000 .

11 to 13 , the prism unit 400 may be disposed in the housing 100 . In detail, the prism unit 400 may be disposed in the accommodation space of the housing 100 .

The prism unit 400 may include a prism 400b and a prism mover 400a disposed on the prism 400b.

The prism 400b may be a right-angle prism. The prism 400b may reflect the direction of light incident from the outside. That is, the prism 400b may change the path of the light incident on the first camera actuator 1000 from the outside toward the second camera actuator 2000 .

The prism mover 400a may be disposed on the prism 400b. The prism mover 400a may be disposed to surround the prism 400b. At least one side of the prism mover 400a may be opened and may include an accommodation space therein. In detail, the prism mover 400a may have a structure in which a plurality of side portions connected to each other are opened. For example, the prism mover 400a may have a structure in which a side corresponding to the prism 400b is open, and may include an accommodation space defined as the first space 450 therein.

The prism mover 400a may include an inner surface 451 . The inner surface 451 may be an inner surface constituting the first space 450 . The first space 450 may have a shape corresponding to the prism 400b. The inner surface 451 of the first space 450 may directly contact the prism 400b.

The prism mover 400a may include a stepped 452 . The step 452 may be disposed in the first space 450 . The step 452 may serve as a guide and/or a seating part for the prism 400b. In detail, a protrusion corresponding to the step 452 may be formed on the outside of the prism 400b, but is not limited thereto.

A protrusion or one end of the prism 400b may be guided by the step 452 of the prism mover 400a to be disposed in the first space 450 . Accordingly, the prism mover 400a can effectively support the prism 400b. In addition, the prism 400b may be seated at a set position, and may have improved alignment characteristics within the prism mover 400a.

The prism unit 400 may include a plurality of sides. For example, the prism mover 400a of the prism unit 400 may include a plurality of sides. The prism mover 400a may include a first side portion 410 corresponding to the first side portion 110 of the housing 100 . In addition, the prism mover 400a may include a second side portion 420 corresponding to the second side portion 120 of the housing 100 . In addition, the prism mover 400a may include a third side portion 430 corresponding to the third side portion 130 of the housing 100 . In addition, the prism mover 400a may include a fourth side portion 440 corresponding to the fourth side portion 140 of the housing 100 .

The prism mover 400a may include a plurality of recesses.

Preferably, the prism mover 400a may include a second recess 434 and a third recess 431 .

The second recess 434 may be formed in the third side portion 430 of the prism mover 400a. Preferably, the second recess 434 may be formed on the outer surface of the third side portion 430 of the prism mover 400a. The second recess 434 may have an inwardly concave shape on the outer surface of the third side portion 430 of the prism mover 400a. The second recess 434 may be formed in a central region of the outer surface of the third side portion 430 of the prism mover 400a. Preferably, the second recess 434 may be aligned with the third housing hole 134 formed in the housing 100 in the z-axis direction. The second recess 434 may be formed to face the third housing hole 134 formed in the housing 100 . Preferably, the center of the second recess 434 may be formed in a region overlapping the center of the third housing hole 134 of the housing 100 in the z-axis direction. The second recess 434 may provide a space in which one component of the pressing unit 600 is disposed. Preferably, in the second recess 434 , a first pulling member 610 that is a component of the pressing part 600 may be disposed. The first pulling member 610 may be a magnet.

Accordingly, the second recess 434 may be disposed to face the third housing hole 134 disposed in the housing 100 . That is, the second recess 434 may overlap the third housing hole 134 in the z-axis direction.

In this case, an adhesive member (not shown) may be applied to the second recess 434 . In addition, the first pulling member 610 may be fixedly disposed in the second recess 434 by the adhesive member.

A plurality of third recesses 431 may be formed on the outer surface of the side of the prism mover 400a. For example, a plurality of third recesses 431 may be formed on the outer surface of the third side portion 430 of the prism unit 400 . Preferably, the third recess 431 may be provided in the same size as the first recess 131 , or may be provided in a different size. The third recess 431 may be disposed adjacent to the second recess 434 and spaced apart from the second recess 434 . Preferably, the third recess 431 may be disposed to be spaced apart from the second recess 434 . In this case, a depth of the third recess 431 may be different from a depth of the second recess 434 . Also, a depth of the third recess 431 may be the same as a depth of the second recess 434 .

The third recess 431 may be disposed to be spaced apart from each other in the second direction with respect to the second recess 434 .

For example, the third recess 431 may include a first sub-third recess 432 and a second sub-third recess spaced apart from the second recess 434 in a second direction (y-axis direction). set 433 may be included. In this case, the center of the second recess 434 may be located on an imaginary straight line connecting the centers of the first sub-third recess 432 and the second sub-third recess 433 to each other. .

The third recess 431 may provide a space in which the plurality of first moving protrusions of the moving plate 500 disposed on one surface of the moving plate 500 are inserted and/or seated. In this case, the third recess 431 may not overlap the first recess 131 of the housing in the z-axis direction.

The prism mover 400a may further include a plurality of recesses. The recess may be a groove having a concave shape in the direction of the first space 335 on the outer surface of the side of the prism mover 400a.

The plurality of recesses may include a fourth recess 411 , a fifth recess 421 , and a sixth recess 441 .

For example, the fourth recess 411 may be formed on the outer surface of the first side portion 410 of the prism mover 400a. The fourth recess 411 may be formed in a region corresponding to the first housing hole 111 of the housing 100 . The fourth recess 411 may be formed in a region corresponding to the first coil unit 311 .

The fifth recess 421 may be formed on the outer surface of the second side portion 420 of the prism mover 400a. The fifth recess 421 may be formed in a region corresponding to the 2-1 housing hole 121 of the housing 100 . The fifth recess 421 may be formed in a region corresponding to the second coil unit 312 .

The sixth recess 441 may be formed on the outer surface of the fourth side portion 440 of the prism mover 400a. The sixth recess 441 may be formed in a region corresponding to the fourth housing hole 141 of the housing 100 . The sixth recess 441 may be formed in a region corresponding to the third coil unit 313 .

The fourth recess 411 , the fifth recess 421 , and the sixth recess 441 may be seating parts on which the magnet part 320 is mounted. The fourth recess 411 , the fifth recess 421 , and the sixth recess 441 may be seating parts on which the yoke part 330 is mounted.

For example, the first yoke 331 and the first magnet 321 may be disposed in the fourth recess 411 from the inside. In addition, a second yoke 332 and a second magnet 322 may be disposed in the fifth recess 421 from the inside. Also, a third yoke 333 and a third magnet 323 may be disposed in the sixth recess 441 from the inside. And they may be spaced apart from each other.

As described above, the prism mover 400a has a second recess 434 in which the first pulling member 610 is disposed on the outer surface, and a plurality of spaces disposed apart from the second recess 434 in the y-axis direction. may include a third recess 431 of

<Moving Plate>

14 is a front perspective view of the moving plate constituting the first camera actuator, and FIG. 15 is a rear perspective view of the moving plate constituting the first camera actuator.

14 and 15 , the moving plate 500 may include a first surface 510 and a second surface 520 .

A plurality of moving protrusions may be provided on one surface of the moving plate 500 to provide a rotation axis for rotating or tilting the prism unit 400 in a first direction (eg, a left-right direction or an x-axis direction). . A plurality of moving protrusions may be provided on the other surface of the moving plate 500 to provide a rotation axis for rotating or tilting the prism unit 400 in the second direction (eg, the vertical direction or the y-axis direction).

As described above, in the embodiment, the rotation of the prism unit 400 in the first direction is made of a plurality of moving protrusions disposed on one surface of the moving plate 500 , and the rotation in the second direction is the moving plate It is made by a plurality of moving projections arranged on the other surface of the (500).

In this case, the moving plate 500 may be disposed between the housing 100 and the prism unit 400 .

The moving plate 500 is disposed between the housing 100 and the prism unit 400 and is pressed by the pressing unit 600 to press and support the housing 100 together with the prism unit 400 . can be

Here, the moving plate 500 includes a plurality of protrusions on both sides.

In this case, the moving plate 500 may provide a rotational axis for the moving direction of the prism unit 400 moved by an external driving force, for example, the coil unit 310 and the magnet unit 320 .

The moving plate 500 may include a first surface 510 .

The first surface 510 may be a surface facing the third side portion 430 of the prism mover 400a.

A first moving protrusion 511 and a first moving recess 514 may be disposed on the first surface 510 of the moving plate 500 . The first moving protrusion 511 functions as a rotation axis for rotating the prism unit 400 in a first direction. The first moving recess 514 may be a concave groove formed on the first surface 510 as the second moving protrusion 521 is formed on the second surface 520 of the moving plate 500 .

That is, the moving plate 500 may be a flat plate-shaped member, and first and second moving protrusions 511 and 521 are formed on both surfaces thereof, respectively. In addition, as the first and second moving protrusions 511 and 521 are formed, corresponding first and second moving recesses 514 and 524 may be formed on opposite surfaces thereof.

The first moving protrusions 511 may be disposed to be spaced apart from each other in the second direction (y-axis direction) with respect to the central region of the first surface 510 of the moving plate 500 . Here, the central region of the first surface 510 may be a region facing the first pulling member 610 fixedly disposed on the prism unit 400 . Preferably, the central region of the first surface 510 may be a region overlapping the first pulling member 610 fixedly disposed on the prism unit 400 in the z-axis direction. Accordingly, a hole 530 may be formed in the central region of the moving plate 500 . The hole 530 of the moving plate 500 may be a hole passing through the first surface 510 and the second surface 520 of the moving plate 500 in the central region of the moving plate 500 . The hole 530 may be formed in a region corresponding to the second recess 434 formed in the prism mover 400a. Also, the hole 530 may be formed in a region corresponding to the third housing hole 134 of the housing 100 . Preferably, the hole 530 of the moving plate 500 may overlap the second recess 434 and the third housing hole 134 in the z-axis direction. Accordingly, the first pulling member 610 disposed in the second recess 434 and the second pulling member 620 disposed in the third housing hole 134 are formed in the hole ( 530) may be disposed to directly face each other.

In addition, the first moving protrusions 511 are disposed to be spaced apart from each other in the y-axis direction of the central region. That is, the first moving protrusion 511 is spaced apart from the first sub-first moving protrusion 512 in the +y-axis direction with respect to the central region and the -y-axis direction with respect to the central region. It may include a second sub-first moving protrusion 513 disposed therein.

The first sub-first moving protrusion 512 may correspond to the first sub-third recess 432 . That is, at least a portion of the first sub-first moving protrusion 512 may be disposed in the first sub-third recess 432 . That is, at least a portion of the first sub-first moving protrusion 512 may be inserted into the first sub-third recess 432 . In this case, the height of the first sub-first moving protrusion 512 may be greater than the depth of the first sub-third recess 432 . Accordingly, only a portion of the first sub-first moving protrusion 512 may be inserted into the first sub-third recess 432 . Accordingly, in a state in which at least a portion of the first sub-first moving protrusion 512 is inserted into the first sub-third recess 432 , the first surface 510 of the moving plate 500 is formed by the prism It may be spaced apart from the outer surface of the third side portion 430 of the mover 400a.

The second sub-first moving protrusion 513 may correspond to the second sub-third recess 433 . That is, at least a portion of the second sub-first moving protrusion 513 may be disposed in the second sub-third recess 433 . That is, at least a portion of the second sub-first moving protrusion 513 may be inserted into the second sub-third recess 433 . In this case, the height of the second sub-first moving protrusion 513 may be greater than the depth of the second sub-third recess 433 . Accordingly, only a portion of the second sub-first moving protrusion 513 may be inserted into the second sub-third recess 433 . Accordingly, in a state in which at least a portion of the second sub-first moving protrusion 513 is inserted into the second sub-third recess 433 , the first surface 510 of the moving plate 500 is formed by the prism It may be spaced apart from the outer surface of the third side portion 430 of the mover 400a.

In addition, the first sub-first moving protrusion 512 and the second sub-first moving protrusion 513 are arranged in the y-axis direction with respect to the center of the moving plate 500, and accordingly, the prism unit 400 A rotation axis for rotation in this first direction (x-axis direction) is provided. That is, the prism unit 400 uses the first virtual line formed by the first sub-first moving protrusion 512 and the second sub-first moving protrusion 513 as a reference axis in the first direction (left and right direction). ) may be provided to enable rotational motion.

The first moving recesses 514 may be disposed to be spaced apart from each other in the first direction (x-axis direction) with respect to the central region of the first surface 510 of the moving plate 500 .

In addition, the first moving recesses 514 are disposed to be spaced apart from each other in the x-axis direction of the central region. That is, the first moving recess 514 is a first sub-first moving recess 515 spaced apart from the center area in the -x-axis direction and in the +x-axis direction with respect to the center area. It may include a second sub-first moving recess 516 that is spaced apart.

The first sub-first moving recess 515 and the second sub-first moving recess 516 may correspond to the second moving protrusion 521 formed on the second surface 520 of the moving plate 500 . can

In addition, the moving plate 500 may include a second surface 520 .

The second surface 520 may be a surface facing the inner surface of the third side portion 130 of the housing 100 .

A second moving protrusion 521 and a second moving recess 524 may be disposed on the second surface 520 of the moving plate 500 . The second moving protrusion 521 functions as a rotation axis for rotating the prism unit 400 in a second direction.

The second moving protrusions 521 may be disposed to be spaced apart from each other in the first direction (x-axis direction) with respect to the central region of the second surface 520 of the moving plate 500 . Here, the central region of the second surface 520 may be a region in which the hole 530 is formed.

In addition, the second moving protrusions 521 are disposed to be spaced apart from each other in the x-axis direction of the central region. That is, the second moving protrusion 521 is spaced apart from the first sub-second moving protrusion 522 in the -x-axis direction with respect to the central region and the +x-axis direction with respect to the central region. It may include a second sub-second moving protrusion 523 disposed therein.

The first sub-second moving protrusion 522 and the second sub-second moving protrusion 523 are the first sub-first recess 132 and the second sub-first recess 133 of the housing 100 . can correspond to

That is, the first sub-second moving protrusion 522 and the second sub-second moving protrusion 523 may be inserted into the first sub-first recess 132 and the second sub-first recess 133 . can

In addition, the first sub-second moving protrusion 522 and the second sub-second moving protrusion 523 are arranged in the x-axis direction with respect to the center of the moving plate 500, and accordingly, the prism unit 400 A rotation shaft for rotation in this second direction is provided. That is, the prism unit 400 uses the imaginary second line formed by the first sub-second moving protrusion 522 and the second sub-second moving protrusion 523 as a reference axis in the second direction (up and down direction). ) may be provided to enable rotational motion.

The second moving recesses 524 may be disposed to be spaced apart from each other in the second direction (y-axis direction) with respect to the central area of the second surface 520 of the moving plate 500 .

In addition, the second moving recesses 524 are disposed to be spaced apart from each other in the y-axis direction of the central region. That is, the second moving recess 524 is a first sub-second moving recess 525 spaced apart from the center area in the +y-axis direction and in the -y-axis direction with respect to the center area. It may include a second sub-second moving recess 526 that is spaced apart from each other.

16 to 18 are diagrams illustrating a coupling relationship between a housing, a prism unit, a pressing unit, and a moving plate in the first camera actuator.

16 to 18 , the first camera actuator according to the embodiment may include a moving plate 500 . In addition, the pressing parts 600 for generating attractive forces to each other may be disposed on surfaces facing each other between the housing 100 and the prism unit 400 . That is, the first pulling member 610 may be disposed on one surface of the prism unit 400 (more specifically, a prism mover). In addition, a second pulling member 620 may be disposed on one surface of the housing 100 facing the one surface of the prism unit 400 . In this case, the first pulling member 610 may be a magnet. Also, the second pulling member 620 may be an electronic component. For example, the second pulling member 620 may be an electronic component having a magnetic field. For example, the second pulling member 620 may be an electronic component electrically connected to the substrate 200 . For example, the second pulling member 620 may be a capacitor disposed on the substrate 200 .

The prism unit 400 may be pressed against the housing 100 in a state in which the moving plate 500 is inserted between the prism unit 400 and the housing 100 by the pressing unit 600 . . Accordingly, the prism unit 400 and the moving plate 500 may be supported by the housing 100 .

The centers of the first pulling member 610 , the moving plate 500 and the second pulling member 620 may overlap each other in the z-axis direction.

In this case, the first moving protrusion 511 of the moving plate 500 may be inserted into the third recess 431 of the prism unit 400 .

The first sub-first moving protrusion 512 may be inserted into the first sub-third recess 432 , and the second sub-first moving protrusion 513 may include the second sub-third recess 433 . can be inserted into

In addition, the first sub-second moving protrusion 522 and the second sub-second moving protrusion 523 include a first sub-first recess 132 and a second sub-first recess of the housing 100 ( 133) can be inserted.

In addition, the first sub-second moving protrusion 522 and the second sub-second moving protrusion 523 are arranged in the x-axis direction with respect to the center of the moving plate 500, and accordingly, the prism unit 400 A rotation shaft for rotation in this second direction is provided. That is, the prism unit 400 uses the imaginary second line formed by the first sub-second moving protrusion 522 and the second sub-second moving protrusion 523 as a reference axis in the second direction (up and down direction). ) may be provided to enable rotational motion.

Accordingly, the first moving protrusions disposed on one surface of the moving plate 500 serve as a rotation axis for rotating the prism unit 400 in a first direction corresponding to the x-axis, and on the other surface of the moving plate 500 . The arranged second moving protrusions serve as rotation axes for rotating the prism unit 400 in a second direction corresponding to the y-axis.

And, in the embodiment, the electromagnetic force between the first to third magnets 321 , 322 , 323 and the first to third coil parts 311 , 312 , 313 disposed on the prism mover 400a is By controlling the tilting of the prism unit 400 in the first axis or the second axis, the occurrence of a decent or tilt phenomenon is minimized in the implementation of OIS, thereby providing the best optical characteristics. have.

For example, in the embodiment, in a state in which the moving plate 500 is disposed between the housing 100 and the prism unit 400, the prism unit 400 responds to the driving force of the image shake control units 200 and 300. By controlling tilting in the 1st axis or 2nd axis by the OIS implementation, the occurrence of a decent or tilt phenomenon can be minimized to achieve the best optical characteristics there is

In addition, the embodiment uses an electronic component disposed on the substrate 200 as one configuration of the pressing unit 600 for pressing the prism unit 400 to the housing 100 . Specifically, in the embodiment, as the second pulling member 620 constituting the pressing unit 600 , a magnetic electronic component disposed on the substrate 200 is used. Specifically, the embodiment uses a magnetic capacitor disposed on the substrate 200 as the second pulling member 620 constituting the pressing unit 600 . According to this, in the embodiment, a separate magnet or yoke constituting the second pulling member 620 may be deleted, and thus the manufacturing cost may be reduced. In addition, in the embodiment, when the capacitor disposed on the substrate 200 is not a pressing part, an external force is generated due to the attractive force generated between the magnet constituting the pressing part 600 and the capacitor, and thus OIS operation reliability may cause problems. Alternatively, in the embodiment, as the capacitor is used as a pulling member, an external force generated in the capacitor may be removed, and thus OIS operation reliability may be improved.

19 and 20 are exemplary views of the operation of the first camera actuator according to the embodiment.

Referring to FIGS. 19 and 20 , the prism unit 400 according to the embodiment may perform tilting control on the first axis or the second axis by the driving force of the image shake control units 200 and 300 .

First, referring to FIG. 19 , the prism unit 400 rotates in a first direction with respect to the imaginary first line L1 formed by the first moving protrusion 511 of the moving plate 500 as a reference axis. possible to be provided. In detail, the image shake control units 200 and 300 may rotate the prism unit 400 in a left and right direction.

For example, a repulsive force may be generated between a first coil portion of the first coil 311 adjacent to the moving plate 500 and a first magnet portion of the first magnet 321 corresponding thereto. An attractive force may be generated between the second coil part far from the moving plate 500 of the first coil 311 and the second magnet part of the first magnet 321 corresponding thereto.

Also, an attractive force may be generated between the third coil portion adjacent to the moving plate 500 of the second coil 312 and the third magnet portion of the second magnet 322 corresponding thereto. A repulsive force may be generated between a fourth coil part far from the moving plate 500 of the second coil 312 and a fourth magnet part of the second magnet 322 corresponding thereto.

Accordingly, the prism unit 400 may be tilted in the left and right directions with respect to the first line L1 as a reference axis. That is, the prism unit 400 may be tilted at a predetermined angle in the left and right directions based on the first line L1 . Accordingly, the movement path of the light incident on the prism unit 400 may be controlled.

Also, referring to FIG. 20 , the prism unit 400 rotates in a second direction with respect to the imaginary second line L2 formed by the second moving protrusion 521 of the moving plate 500 as a reference axis. This can be provided as possible. In detail, the image shake control units 200 and 300 may rotate the prism unit 400 in a left and right direction.

For example, a repulsive force may be generated between a fifth coil portion adjacent to the moving plate 500 of the third coil 313 and a fifth magnet portion adjacent to the moving plate 500 of the third magnet 323 . have. Also, an attractive force may be generated between a sixth coil part far from the moving plate 500 of the third coil 313 and a sixth magnet part far from the moving plate 500 of the third magnet 323 .

Accordingly, the prism unit 400 may be tilted downward with respect to the second line L2 as a reference axis. That is, the prism unit 400 may be tilted at a predetermined angle in the vertical direction based on the second line L2 . Accordingly, the movement path of the light incident on the prism unit 400 may be controlled.

21 is a perspective view of a camera module according to an embodiment, and FIG. 22 is a perspective view in which some components are omitted from the camera module according to the embodiment.

21 and 22 , the camera module 10 according to the embodiment may include one or a plurality of camera actuators. For example, the camera module 10 may include the first camera actuator 1000 and the second camera actuator 2000 described above, and the first camera actuator 1000 and the second camera actuator 2000 . ) may include a cover case 15 to protect it.

The first camera actuator 1000 may be an optical image stabilizer (OIS) actuator. In this case, the light incident on the camera module 10 from the outside may be incident on the first camera actuator 1000 first. Also, a path of the light incident on the first camera actuator 1000 may be changed to be incident on the second camera actuator 2000 . Subsequently, the light passing through the second camera actuator 2000 may be incident on the image sensor 2900 .

The second camera actuator 2000 may be a zoom and/or auto focus actuator. The second camera actuator 2000 may include a plurality of lenses. The second camera actuator 2000 may perform a zoom or autofocus function by moving at least one lens in the optical axis direction according to a control signal from the controller. The second camera actuator 2000 will be described in more detail with reference to the drawings to be described later.

<Second Camera Actuator>

23 is an exploded perspective view of the second camera actuator according to the embodiment, and FIG. 24 is a cross-sectional view of the second camera actuator according to the embodiment. Also, FIG. 25 is a front view of the second camera actuator according to the embodiment, and FIG. 26 is a perspective view illustrating third and fourth driving units disposed in the housing in the second camera actuator according to the embodiment. 27 and 28 are exploded perspective views of the first and second driving units according to the embodiment, and FIG. 29 is a perspective view of a partial configuration of the second camera actuator according to the embodiment.

23 to 29 , the second camera actuator 2000 according to the embodiment includes a second housing 2100 , a first lens unit 2105 , a first lens barrel 2200 , and a third driving unit 2300 . , a second lens barrel 2400 , and a fourth driving unit 2500 may be included.

The second housing 2100 may form an exterior of the second camera actuator 2000 . The second housing 2100 may have upper and lower partial regions open and may have a hexahedral shape.

The second housing 2100 may include an accommodating space therein. The first lens barrel 2200 , the third driving unit 2300 , the second lens barrel 2400 , and the fourth driving unit 2500 may be accommodated in the accommodating space of the second housing 2100 .

The second housing 2100 may include a first sub-housing 2110 and a second sub-housing 2120 .

The first sub-housing 2110 may include a first hole 2111 . The first hole 2111 may be formed on one side of the first sub-housing 2110 . The first hole 2111 is a hollow hole and may be a hole passing through the outside and the inside of the first sub-housing 2110 .

The first sub-housing 2110 may further include a second hole 2112 and a third hole 2113 . The second hole 2112 and the third hole 2113 may be disposed on one side of the first sub-housing 2110 . The second hole 2112 and the third hole 2113 may be hollow holes passing through the outside and the inside of the first sub-housing 2110 . The second hole 2112 and the third hole 2113 may be spaced apart from the first hole 2111 . In detail, the first hole 2111 may be disposed between the second hole 2112 and the third hole 2113 . The first hole 2111 may be disposed at equal intervals to the second hole 2112 and the third hole 2113 .

The second hole 2112 may include a plurality of protrusions protruding from the inner circumferential surface of the second hole 2112 toward the center of the second hole 2112 . For example, the plurality of protrusions may include a first protrusion 2112a disposed at an upper end of the second hole 2112 and a second protrusion 2112b disposed at a lower end of the second hole 2112 in the optical axis direction. ) may be included.

In detail, the first protrusion 2112a may include a plurality of first sub-protrusions (not shown) spaced apart from each other. The plurality of first sub-protrusions may be arranged at equal intervals from the center of the second hole 2112 along a circumference of a concentric circle shape. In addition, the second protrusion 2112b may be spaced apart from the first protrusion 2112a in the optical axis direction. The second protrusion 2112b may be disposed below the first protrusion 2112a. The second protrusion 2112b may include a plurality of second sub-protrusions (not shown) spaced apart from each other. The plurality of second sub-protrusions may be arranged at equal intervals from the center of the second hole 2112 along a circumference of a concentric circle shape. The first protrusion 2112a and the second protrusion 2112b may provide a space in which a portion of the third driving unit 2300 to be described later, for example, the first buffer member 2321 is disposed.

The third hole 2113 may include a plurality of protrusions protruding from the inner circumferential surface of the third hole 2113 toward the center of the third hole 2113 . The plurality of protrusions may include a third protrusion 2113a disposed at an upper end of the third hole 2113 and a fourth protrusion 2113b disposed at a lower end of the second hole 2112 with respect to the optical axis direction. can

The third protrusion 2113a may include a plurality of third sub-protrusions (not shown) spaced apart from each other. The plurality of third sub-protrusions may be disposed at equal intervals from the center of the third hole 2113 along a circumference of a concentric circle shape. Also, the fourth protrusion 2113b may be spaced apart from the third protrusion 2113a in the optical axis direction. The fourth protrusion 2113b may include a plurality of fourth sub-protrusions (not shown) spaced apart from each other. The plurality of fourth sub-protrusions may be arranged at equal intervals from the center of the third hole 2113 along a circumference of a concentric circle shape. The third protrusion 2113a and the fourth protrusion 2113b may provide a space in which a portion of the fourth driving unit 2500 to be described later, for example, a third buffer member 2521 is disposed.

The second sub-housing 2120 may be disposed under the first sub-housing 2110 . In detail, the second sub-housing 2120 may be disposed under the first sub-housing 2110 in a third direction (z-axis, optical-axis direction). The second sub-housing 2120 may be disposed closer to an image sensor 2900 to be described later than the first sub-housing 2110 . The first lens barrel 2200 , the third driving unit 2300 , the second lens barrel 2400 , and the fourth driving unit 2500 may be disposed in the second sub-housing 2120 .

The second sub-housing 2120 may be coupled to the first sub-housing 2110 . For example, the first sub-housing 2110 and the second sub-housing 2120 may be coupled by a separate fastening member (not shown) such as a screw. In addition, the first sub-housing 2110 and the second sub-housing 2120 may be coupled to each other by physical coupling of the formed coupling jaws and coupling grooves, respectively.

The first lens unit 2105 is disposed in the second housing 2100 and may include at least one lens. For example, the first lens unit 2105 may be disposed in the first sub-housing 2110 . In detail, the first lens unit 2105 may be disposed in the first hole 2111 of the first sub-housing 2110 . For example, the first lens unit 2105 may be coupled to the first sub-housing 2110 by a thread formed on an inner circumferential surface of the first hole 2111 .

The first lens barrel 2200 may be disposed in the second housing 2100 . The first lens barrel 2200 may be disposed in the second sub-housing 2120 . The first lens barrel 2200 may be disposed under the first lens unit 2105 . For example, the first lens barrel 2200 may be disposed below the first lens unit 2105 in the optical axis direction, and is closer to the image sensor 2900 than the first lens unit 2105 . can do. The first lens barrel 2200 may be coupled to the third driving unit 2300 . The first lens barrel 2200 may move in the second housing 2100 by the third driving unit 2300 . In detail, the first lens barrel 2200 may be moved in the optical axis direction by the third driving unit 2300 .

The first lens barrel 2200 may include a first barrel part 2210 , a second lens part 2205 , a first guide part 2220 , and a first elastic part 2230 .

The first barrel part 2210 may be disposed in a region overlapping the optical axis and may have an open shape on one surface and the other surface. For example, the first barrel part 2210 may have a cylindrical shape with one surface and the other surface open.

The first barrel part 2210 may include the first through hole 2211 . The first through hole 2211 may be a through hole penetrating through one surface and the other surface of the first barrel part 2210 . Here, one surface of the first barrel part 2210 may be a surface facing the first lens unit 2105 , and the other surface may be a surface opposite to the one surface and facing the image sensor 2900 .

The second lens unit 2205 may be disposed on the first barrel unit 2210 . In detail, the second lens unit 2205 may be disposed in the first through hole 2211 . For example, a screw line may be formed on an inner circumferential surface of the first through hole 2211 , and the second lens unit 2205 may be coupled to the first barrel unit 2210 by the screw line.

The second lens unit 2205 may include at least one lens. The second lens unit 2205 may perform a zoom function. The second lens unit 2205 may move in the optical axis direction. In detail, the second lens unit 2205 may move in the optical axis direction with respect to the first lens unit 2105 .

The first guide part 2220 may extend outwardly from the first barrel part 2210 . For example, the first guide part 2220 may extend from the first barrel part 2210 in a direction perpendicular to the optical axis, for example, in a first direction (x-axis direction).

The first guide part 2220 may include a first upper surface 2221 , a first side surface 2222 , and a first lower surface 2223 .

The first upper surface 2221 may face an inner upper surface of the second housing 2100 . The first upper surface 2221 may face the inner upper surface of the second housing 2100 in the second direction (y-axis direction). The first upper surface 2221 may include a plurality of sub upper surfaces. In detail, the first upper surface 2221 is the first sub upper surface 2221a and a second sub upper surface 2221b that is disposed lower in the second direction (y-axis direction) than the first sub upper surface 2221a. may include That is, the second sub upper surface 2221b may be disposed adjacent to the first lower surface 2223 than the first sub upper surface 2221a. At least one first fastening protrusion (not shown) may be disposed on the second sub upper surface 2221b. The first fastening protrusion may have a shape protruding upward on the second sub upper surface 2221b. The first fastening protrusion may be inserted into a first fixing groove (not shown) formed in a first elastic part 2230 to be described later.

Also, the first upper surface 2221 may include a first stepped surface 2225 disposed between the first sub upper surface 2221a and the second sub upper surface 2221b. The first stepped surface 2225 may be connected to the ends of the first sub upper surface 2221a and the second sub upper surface 2221b. The first stepped surface 2225 may be defined as the first stepped portion 2225 . That is, the first upper surface 2221 may include the first sub upper surface 2221a, the second sub upper surface 2221b, and the first stepped portion 2225, and may have a stepped structure.

The first lower surface 2223 may face an inner lower surface of the second housing 2100 to be described later. A first groove 223h1 may be disposed on the first lower surface 2223 . The first groove 223h1 may have a concave shape in a direction from the first lower surface 2223 to the first upper surface 2221 . A first magnetic scaler 2610, which will be described later, may be disposed in the first groove 223h1.

Also, a second groove 2223h2 may be disposed on the first lower surface 2223 . The second groove 2223h2 may be spaced apart from the first groove 223h1 . The second groove 2223h2 may be disposed in an edge region of the first lower surface 2223 . The second groove 2223h2 may provide a region in which a portion of the first elastic part 2230, which will be described later, is disposed. In detail, the second groove 2223h2 may provide a region in which the first elastic part 2230 is mounted and fixed.

The first side surface 2222 may be disposed between the first upper surface 2221 and the first lower surface 2223 . In detail, the first side surface 2222 may be a surface connecting the first upper surface 2221 and the first lower surface 2223 . In more detail, the first side surface 2222 may be a surface connecting the second sub upper surface 2221b and the first lower surface 2223 . The first side surface 2222 may face a second inner surface of the second sub-housing 2120 to be described later.

A first recess 2222h may be disposed on the first side surface 2222 . The first recess 2222h may have a concave shape in a direction from the first side surface 2222 to the first barrel part 2210 . Also, the first recess 2222h may have a groove shape extending in the optical axis direction (z-axis direction). The first recess 2222h may have a V-shape when viewed from the front.

The first guide part 2220 may include a first insertion hole 2220h1. The first insertion hole 2220h1 may be a hole passing through one surface and the other surface of the first guide part 2220 . Here, one surface of the first guide part 2220 may be a surface facing the first lens unit 2105 , and the other surface may be a surface opposite to the one surface and facing the image sensor 2900 .

A first pin 2250 may be disposed in the first insertion hole 2220h1 . The first pin 2250 may be disposed to pass through the first insertion hole 2220h1. The first fin 2250 may have a shape extending in the optical axis direction (z-axis direction), and may have a longer optical axis direction than the first lens barrel 2200 . The first pin 2250 may be coupled to at least one of the first sub-housing 2110 and the second sub-housing 2120 . The first lens barrel 2200 may move the first pin 2250 as a movement axis in the optical axis direction. Through this, the second lens unit 2205 disposed in the first lens barrel 2200 may perform a zoom function and/or an autofocus function.

The first elastic part 2230 may be disposed on the first guide part 2220 . For example, the first elastic part 2230 may be disposed on the first upper surface 2221 , the first lower surface 2223 , and the first side surface 2222 of the first guide part 2220 . The first elastic part 2230 may be coupled to the first guide part 2220 .

The first elastic part 2230 may include a first elastic member 2231 and a second elastic member 2232 .

The first elastic member 2231 may be coupled to the first guide part 2220 . The first elastic member 2231 may be disposed at a set position on the first side surface 2222 .

The first elastic member 2231 may have a shape corresponding to the first side surface 2222 . For example, the first elastic member 2231 may include a first area 2231a, a second area 2231b, and a third area 2231c.

The first area 2231a and the second area 2231b may be disposed on the first side surface 2222 of the first guide part 2220 and may be spaced apart from each other. The first area 2231a and the second area 2231b may be disposed on an area of the first side surface 2222 in which the first recess 2222h is not disposed.

The third area 2231c may be disposed between the first area 2231a and the second area 2231b to connect the two areas 2231a and 2231b. The third region 2231c may be disposed in a region corresponding to the first recess 2222h. The third region 2231c may have a V-shape corresponding to the first recess 2222h.

The second elastic member 2232 may be disposed on the first guide part 2220 . The second elastic member 2232 may be coupled to the first guide part 2220 .

The second elastic member 2232 may include a fourth region 2232a, a fifth region 2232b, and a sixth region 2232c.

The fourth region 2232a may be disposed on the first upper surface 2221 of the first guide part 2220 . In detail, the fourth region 2232a may be disposed on the second sub upper surface 2221b of the first guide part 2220 . The fourth region may include a first fixing groove (not shown). The first fixing groove may be disposed in a region corresponding to the first fastening protrusion, and may have a shape corresponding to the first fastening protrusion.

The fifth region 2232b may be connected to the fourth region 2232a. For example, the fifth region 2232b may be bent at one end of the fourth region 2232a and disposed on the first side surface 2222 of the first guide part 2220 . The fifth region 2232b may be disposed on the first elastic member 2231 . The fifth area 2232b may be parallel to the first area 2231a and the second area 2231b. The fifth region 2232b may be disposed to cover the first elastic member 2231 .

The sixth region 2232c may be connected to the fifth region 2232b. For example, the sixth region 2232c may be bent at one end of the fifth region 2232b and disposed on the first lower surface 2223 of the first guide part 2220 . A portion of the sixth region 2232c may be inserted into the second groove 2223h2 disposed on the first lower surface 2223 .

That is, in the second elastic member 2232 , a first fixing groove formed in the fourth region 2232a is coupled to the first fastening protrusion, and the sixth region 2232c is inserted into the second groove 2223h2 . to be physically coupled to the first guide part 2220 . Accordingly, the first elastic part 2230 may maintain a state firmly coupled to the first guide part 2220 .

In addition, the first lens barrel 2200 may further include a first guide groove 2210h1. The first guide groove 2210h1 may be disposed in an area extending outwardly from the first barrel part 2210 . The first guide groove 2210h1 may be disposed in a region corresponding to a second pin 2450 to be described later. The first guide groove 2210h1 may provide a space into which the second pin 2450 is inserted. The first lens barrel 2200 may move in the optical axis direction by the first fin 2250 and the second fin 2450 . In this case, the first guide groove 2210h1 may have an open shape at one side. For example, the first guide groove 2210h1 may have an open shape at one side facing the first inner surface of the second housing 2100 . Accordingly, friction and vibration generated when the first lens barrel 2200 is moved by the third driving unit 2300 may be minimized.

The second camera actuator 2000 may include a third driving unit 2300 . The third driving unit 2300 may be disposed in the second housing 2100 . The third driving unit 2300 may be coupled to the first lens barrel 2200 . The third driving unit 2300 may move the first lens barrel 2200 in the optical axis direction (z-axis direction).

The third driving unit 2300 may include a first piezoelectric element 2310 , a first extension bar 2320 , a first buffer member 2321 , and a second buffer member 2322 .

The first piezoelectric element 2310 may include a piezo-electric device. For example, the first piezoelectric element 2310 may include a material that causes mechanical deformation by applied power. The first piezoelectric element 2310 may contract or expand by applied power and may cause mechanical deformation in a set direction. For example, the first piezoelectric element 2310 may generate vibration while causing mechanical deformation in the optical axis direction (z-axis direction) by the applied power.

The first piezoelectric element 2310 may include a first disk part 2311 and a first protrusion part 2512 . The first disk part 2311 may have a plate shape and may be disposed on the second hole 2112 . For example, the first disk part 2311 may be disposed on the first protrusion 2112a of the second hole 2112 . In detail, the first disk part 2311 may be disposed on the plurality of first sub-protrusions. The first protrusion 2112a may support the first disk part 2311 .

The first protrusion 2512 may be disposed under the first disk part 2311 . In detail, the first protrusion 2512 may be disposed below the first circular plate 2311 in the third direction (z-axis direction) and be connected to the first circular plate 2311 . A partial region of the first protrusion 2512 may be disposed in the second hole 2112 . The first protrusion 2512 may have a shape protruding toward the image sensor 2900 . The width (x-axis, y-axis direction) of the first protrusion 2512 may change toward the optical axis direction. For example, the width of the first protrusion 2512 may decrease as it approaches the image sensor 2900 .

The first extension bar 2320 may extend in the optical axis direction. The first extension bar 2320 may be disposed parallel to the optical axis and may be connected to the first piezoelectric element 2310 . For example, an upper end of the first extension bar 2320 may be connected to the first protrusion 2512 . In addition, the lower end of the first extension bar 2320 may be inserted into the lower end of the second housing 2100 , for example, a fourth hole (not shown) formed at the lower end of the second sub-housing 2120 .

In addition, one area of the first extension bar 2320 may be connected to the first lens barrel 2200 . For example, the first extension bar 2320 may be connected to the first lens barrel 2200 by the first elastic part 2230 . In detail, the first extension bar 2320 may be disposed between the first elastic member 2231 and the second elastic member 2232 . In more detail, the first extension bar 2320 may be disposed between the third region 2231c of the first elastic member 2231 and the fifth region 2232b of the second elastic member 2232 . The first extension bar 2320 may be fixed by the elastic force of the first elastic member 2231 and the second elastic member 2232 .

The first extension bar 2320 may transmit the vibration generated by the first piezoelectric element 2310 to the first lens barrel 2200 . The first lens barrel 2200 may move upward or downward (z-axis direction, optical-axis direction) according to the vibration direction of the first extension bar 2320 . Through this, the second lens unit 2205 in the first lens barrel 2200 may move to perform a zooming function of zooming up or out.

The first buffer member 2321 may be disposed on the first extension bar 2320 . The first buffer member 2321 may be disposed on an upper region of the first extension bar 2320 . The first buffer member 2321 may be disposed in the second hole 2112 of the second housing 2100 . For example, the first buffer member 2321 may be disposed between the first protrusion 2112a and the second protrusion 2112b of the second hole 2112 . The first buffer member 2321 may be fixed to a position set by the first protrusion 2112a and the second protrusion 2112b. In addition, the first buffer member 2321 may include a through hole into which the first extension bar 2320 is inserted.

The second buffer member 2322 may be disposed on the first extension bar 2320 . The second buffer member 2322 may be disposed on a lower region of the first extension bar 2320 . The second buffer member 2322 may be spaced apart from the first buffer member 2321 in the optical axis direction. The second buffer member 2322 may be disposed in a fourth hole (not shown) of the second housing 2100 . The second buffer member 2322 may be disposed to be inserted into the fourth hole. The second buffer member 2322 may include a through hole into which the first extension bar 2320 is inserted.

The first buffer member 2321 and the second buffer member 2322 may prevent noise caused by the vibration of the first extension bar 2320 . In addition, the first buffer member 2321 and the second buffer member 2322 may prevent the first extension bar 2320 from being deformed or damaged by an external impact.

The second lens barrel 2400 may be disposed in the second housing 2100 . The second lens barrel 2400 may be disposed in the second sub-housing 2120 . The second lens barrel 2400 may be disposed under the first lens barrel 2200 . For example, the second lens barrel 2400 may be disposed below the first lens barrel 2200 in the optical axis direction, and is closer to the image sensor 2900 than the first lens barrel 2200 . can do. The second lens barrel 2400 may be coupled to the fourth driving unit 2500 . The second lens barrel 2400 may move in the second housing 2100 by the fourth driving unit 2500 . In detail, the second lens barrel 2400 may be moved in the optical axis direction by the fourth driving unit 2500 .

The second lens barrel 2400 may include a second barrel part 2410 , a third lens part 2405 , a second guide part 2420 , and a second elastic part 2430 .

The second barrel part 2410 may be disposed in a region overlapping the optical axis and may have an open shape on one surface and the other surface. For example, the second barrel part 2410 may have a cylindrical shape in which one surface and the other surface are open.

The second barrel part 2410 may include the second through hole 2411 . The second through hole 2411 may be a through hole passing through one surface and the other surface of the second barrel part 2410 . Here, one surface of the second barrel part 2410 may be a surface facing the first lens barrel 2200 , and the other surface may be a surface opposite to the one surface and facing the image sensor 2900 .

The third lens unit 2405 may be disposed on the second barrel unit 2410 . In detail, the third lens unit 2405 may be disposed in the second through hole 2411 . For example, a screw line may be formed on the inner circumferential surface of the second through hole 2411 , and the third lens unit 2405 may be coupled to the second barrel unit 2410 by the screw line.

The third lens unit 2405 may include at least one lens. The third lens unit 2405 may perform an auto focus function. The third lens unit 2405 may move in the optical axis direction. In detail, the third lens unit 2405 may move in the optical axis direction with respect to the first lens unit 2105 . The third lens unit 2405 may move separately from the second lens unit 2205 . Also, the distance at which the third lens unit 2405 can move in the optical axis direction may be the same as or different from that of the second lens unit 2205 .

The second guide part 2420 may extend outwardly from the second barrel part 2410 . For example, the second guide part 2420 may extend from the second barrel part 2410 in a direction perpendicular to the optical axis, for example, in a first direction (x-axis direction). In this case, the second guide part 2420 may extend in a direction opposite to the first guide part 2220 . For example, the first guide part 2220 may extend from the first barrel part 2210 in the +x-axis direction, and the second guide part 2420 may extend from the second barrel part 2410 . It can extend in the -x-axis direction.

The second guide part 2420 may include a second lower surface 2421 , a second side surface 2422 , and a second upper surface 2423 .

The second upper surface 2423 may face an inner upper surface of the second housing 2100 . The second upper surface 2423 may face the inner upper surface of the second housing 2100 in the second direction (y-axis direction). A third groove 2423h1 may be disposed on the second upper surface 2423 . The third groove 2423h1 may have a concave shape in a direction from the second upper surface 2423 to the second lower surface 2421 . A second magnetic scaler 2620, which will be described later, may be disposed in the third groove 2423h1.

In addition, a fourth groove 2423h2 may be disposed on the second upper surface 2423 . The fourth groove 2423h2 may be spaced apart from the third groove 2423h1 . The fourth groove 2423h2 may be disposed in an edge region of the second upper surface 2423 . The fourth groove 2423h2 may provide a region in which a portion of the second elastic part 2430, which will be described later, is disposed. In detail, the fourth groove 2423h2 may provide a region in which the second elastic part 2430 is mounted and fixed.

The second lower surface 2421 may face an inner lower surface of the second housing 2100 . The second lower surface 2421 may face the inner lower surface of the second housing 2100 in the second direction (y-axis direction). The second lower surface 2421 may include a plurality of sub lower surfaces. In detail, the second lower surface 2421 is a second sub lower surface 2421b disposed above the first sub lower surface 2421a and the first sub lower surface 2421a in the second direction (y-axis direction) than the second sub lower surface 2421b. may include That is, the second sub lower surface 2421b may be disposed adjacent to the second upper surface 2423 than the first sub lower surface 2421a. At least one second fastening protrusion (not shown) may be disposed on the second sub lower surface 2421b. The second fastening protrusion may have a shape protruding downward from the second sub-lower surface 2421b. The second fastening protrusion may be inserted into a second fixing groove (not shown) formed in a second elastic part 2430 to be described later.

In addition, the second lower surface 2421 may include a second stepped surface 2425 disposed between the first sub lower surface 2421a and the second sub lower surface 2421b. The second stepped surface 2425 may be connected to ends of the first sub lower surface 2421a and the second sub lower surface 2421b. The second stepped surface 2425 may be defined as the second stepped portion 2425 . That is, the second lower surface 2421 may include the first sub lower surface 2421a, the second sub lower surface 2421b, and the second stepped portion 2425 and may have a stepped structure.

The second side surface 2422 may be disposed between the second upper surface 2423 and the second lower surface 2421 . In detail, the second side surface 2422 may be a surface connecting the second upper surface 2423 and the second lower surface 2421 . In more detail, the second side surface 2422 may be a surface connecting the second sub lower surface 2421b and the second upper surface 2423 . The second side surface 2422 may face a first inner surface of the second sub-housing 2120 to be described later.

A second recess 2422h may be disposed on the second side surface 2422 . The second recess 2422h may have a concave shape from the second side surface 2422 toward the second barrel part 2410 . Also, the second recess 2422h may have a groove shape extending in the optical axis direction (z-axis direction). The second recess 2422h may have a V-shape when viewed from the front.

The second guide part 2420 may include a second insertion hole 2420h1 . The second insertion hole 2420h1 may be a hole passing through one surface and the other surface of the second guide part 2420 . Here, one surface of the second guide part 2420 may be a surface facing the first lens barrel 2200 , and the other surface may be a surface opposite to the one surface and facing the image sensor 2900 .

A second pin 2450 may be disposed in the second insertion hole 2420h1 . The second pin 2450 may be disposed to pass through the second insertion hole 2420h1. The second fin 2450 may have a shape extending in the optical axis direction (z-axis direction). The second fin 2450 may be spaced apart from the first fin 2250 and may be parallel to the first fin 2250 . The second fin 2450 may have a length in the optical axis direction longer than that of the second lens barrel 2400 . The second pin 2450 may be coupled to at least one of the first sub-housing 2110 and the second sub-housing 2120 . The second lens barrel 2400 may move the second pin 2450 as a movement axis in the optical axis direction. Through this, the third lens unit 2405 disposed in the second lens barrel 2400 may perform a zoom function and/or an autofocus function.

The second elastic part 2430 may be disposed on the second guide part 2420 . For example, the second elastic part 2430 may be disposed on the second upper surface 2423 , the second lower surface 2421 , and the second side surface 2422 of the second guide part 2420 . The second elastic part 2430 may be coupled to the second guide part 2420 .

The second elastic part 2430 may include a third elastic member 2431 and a fourth elastic member 2432 .

The third elastic member 2431 may be coupled to the second guide part 2420 . The third elastic member 2431 may be disposed at a set position on the second side surface 2422 .

The third elastic member 2431 may have a shape corresponding to the second side surface 2422 . For example, the third elastic member 2431 may include a seventh area 2431a, an eighth area 2431b, and a ninth area 2431c.

The seventh area 2431a and the eighth area 2431b may be disposed on the second side surface 2422 of the second guide part 2420 and may be spaced apart from each other. The seventh area 2431a and the eighth area 2431b may be disposed on an area of the second side surface 2422 in which the second recess 2422h is not disposed.

The ninth area 2431c may be disposed between the first area 2231a and the second area 2231b to connect the two areas 2431a and 2431b. The ninth area 2431c may be disposed in an area corresponding to the second recess 2422h. The ninth region 2431c may have a V-shape corresponding to the second recess 2422h.

The fourth elastic member 2432 may be disposed on the second guide part 2420 . The fourth elastic member 2432 may be coupled to the second guide part 2420 .

The fourth elastic member 2432 may include a tenth region 2432a, an eleventh region 2432b, and a twelfth region 2432c.

The tenth area 2432a may be disposed on the second lower surface 2421 of the second guide part 2420 . In detail, the tenth area 2432a may be disposed on the second sub lower surface 2421b of the second guide part 2420 . The tenth region 2431a may include a second fixing groove (not shown). The second fixing groove may be disposed in a region corresponding to the second fastening protrusion, and may have a shape corresponding to the second fastening protrusion.

The eleventh region 2432b may be connected to the tenth region 2432a. For example, the eleventh region 2432b may be bent at one end of the tenth region 2432a and disposed on the second side surface 2422 of the second guide part 2420 . The eleventh region 2432b may be disposed on the third elastic member 2431 . The eleventh area 2432b may be parallel to the seventh area 2431a and the eighth area 2431b. The eleventh region 2432b may be disposed to cover the third elastic member 2431 .

The twelfth region 2432c may be connected to the eleventh region 2432b. For example, the twelfth region 2432c may be bent at one end of the eleventh region 2432b and disposed on the second upper surface 2423 of the second guide part 2420 . A portion of the twelfth region 2432c may be inserted into the fourth groove 2423h2 disposed on the second upper surface 2423 .

That is, in the fourth elastic member 2432 , a second fixing groove formed in the seventh region 2431a is coupled to the second fastening protrusion, and the twelfth region 2432c is inserted into the fourth groove 2423h2 . to be physically coupled to the second guide part 2420 . Accordingly, the second elastic part 2430 may maintain a state firmly coupled to the second guide part 2420 .

In addition, the second lens barrel 2400 may further include a second guide groove 2410h1. The second guide groove 2410h1 may be disposed in an area extending outwardly from the second barrel part 2410 . The second guide groove 2410h1 may be disposed in a region corresponding to the first pin 2250 . The second guide groove 2410h1 may provide a space into which the first pin 2250 is inserted. The second lens barrel 2400 may move in the optical axis direction by the first fin 2250 and the second fin 2450 . In this case, the second guide groove 2410h1 may have an open shape at one side. For example, the second guide groove 2410h1 may have an open shape at one side facing the second inner surface of the second housing 2100 . Accordingly, friction and vibration generated when the second lens barrel 2400 is moved by the fourth driving unit 2500 can be minimized.

The second camera actuator 2000 may include a fourth driving unit 2500 . The fourth driving unit 2500 may be disposed in the second housing 2100 . The fourth driving unit 2500 may be coupled to the second lens barrel 2400 . The fourth driving unit 2500 may move the second lens barrel 2400 in the optical axis direction (z-axis direction).

The fourth driving unit 2500 may include a second piezoelectric element 2510 , a second extension part 2520 , a third buffer member 2521 , and a fourth buffer member 2522 .

The second piezoelectric element 2510 may include a piezo-electric device. For example, the second piezoelectric element 2510 may include a material that causes mechanical deformation by applied power. The second piezoelectric element 2510 may contract or expand by applied power and may cause mechanical deformation in a set direction. For example, the second piezoelectric element 2510 may generate vibration while causing mechanical deformation in the optical axis direction (z-axis direction) by the applied power.

The second piezoelectric element 2510 may include a second disk part 2511 and a second protrusion part 2512 . The second disk part 2511 has a plate shape and may be disposed on the third hole 2113 . For example, the second disk part 2511 may be disposed on the third protrusion 2113a of the third hole 2113 . In detail, the second disk portion 2511 may be disposed on the plurality of third sub-protrusions. The third protrusion 2113a may support the second disc part 2511 .

The second protrusion 2512 may be disposed under the second disk portion 2511 . In detail, the second protrusion 2512 may be disposed under the second disk portion 2511 in the third direction (z-axis direction) and be connected to the second disk portion 2511 . A partial region of the first protrusion 2512 may be disposed in the third hole 2113 . The second protrusion 2512 may have a shape protruding toward the image sensor 2900 . The width (x-axis, y-axis direction) of the second protrusion 2512 may change toward the optical axis direction. For example, the width of the second protrusion 2512 may decrease as it approaches the image sensor 2900 .

The second extension 2520 may extend in the optical axis direction. The second extension 2520 may be disposed parallel to the optical axis and may be connected to the second piezoelectric element 2510 . For example, an upper end of the second extension 2520 may be connected to the second protrusion 2512 . In addition, the lower end of the second extension 2520 may be inserted into the lower end of the second housing 2100 , for example, a fifth hole (not shown) formed at the lower end of the second sub-housing 2120 .

In addition, one area of the second extension part 2520 may be connected to the second lens barrel 2400 . For example, the second extension part 2520 may be connected to the second lens barrel 2400 by the second elastic part 2430 . In detail, the second extension part 2520 may be disposed between the third elastic member 2431 and the fourth elastic member 2432 . In more detail, the second extension 2520 may be disposed between the ninth region 2431c of the third elastic member 2431 and the eleventh region 2432b of the fourth elastic member 2432 . The second extension 2520 may be fixed by the elastic force of the third elastic member 2431 and the fourth elastic member 2432 .

The second extension 2520 may transmit the vibration generated by the second piezoelectric element 2510 to the second lens barrel 2400 . The second lens barrel 2400 may move upward or downward (z-axis direction, optical-axis direction) according to the vibration direction of the second extension part 2520 . Through this, the third lens unit 2405 in the second lens barrel 2400 may move to perform a zooming function of zooming up or zooming out.

The third buffer member 2521 may be disposed on the second extension part 2520 . The third buffer member 2521 may be disposed on an upper region of the second extension part 2520 . The third buffer member 2521 may be disposed in the third hole 2113 of the second housing 2100 . For example, the third buffer member 2521 may be disposed between the third protrusion 2113a and the fourth protrusion 2113b of the third hole 2113 . The third buffer member 2521 may be fixed to a position set by the third protrusion 2113a and the fourth protrusion 2113b. In addition, the third buffer member 2521 may include a through hole into which the second extension part 2520 is inserted.

The fourth buffer member 2522 may be disposed on the second extension part 2520 . The fourth buffer member 2522 may be disposed on a lower region of the second extension part 2520 . The fourth buffer member 2522 may be spaced apart from the third buffer member 2521 in the optical axis direction. The fourth buffer member 2522 may be disposed in a fifth hole (not shown) of the second housing 2100 . The fourth buffer member 2522 may be disposed to be inserted into the fifth hole. The second buffer member 2322 may include a through hole into which the second extension part 2520 is inserted.

The third buffer member 2521 and the fourth buffer member 2522 may prevent noise caused by vibration of the second extension part 2520 . In addition, the third buffer member 2521 and the fourth buffer member 2522 may prevent the second extension part 2520 from being deformed or damaged by an external impact.

The second camera actuator 2000 may include a first magnetic scaler 2610 , a first sensing unit (not shown), a second magnetic scaler 2620 , and a second sensing unit (not shown).

The first magnetic scaler 2610 may be disposed on the first lens barrel 2200 . For example, the first magnetic scaler 2610 may be disposed on the first lower surface 2223 . In detail, the first magnetic scaler 2610 may be disposed in the first groove 223h1 of the first lens barrel 2200 . The first magnetic scaler 2610 may move along the optical axis direction together with the first lens barrel 2200 .

The first magnetic scaler 2610 may include a plurality of magnets. For example, the first magnetic scaler 2610 may have an N pole and an S pole alternately disposed in the optical axis direction.

The first sensing unit may be disposed adjacent to the first magnetic scaler 2610 . For example, the first sensing unit may be disposed to face the first magnetic scaler 2610 in a first direction (x-axis direction) or a second direction (y-axis direction). The first sensing unit may detect a position of the first magnetic scaler 2610 . Through this, the first sensing unit may detect the position and movement of the first lens barrel 2200 moving together with the first magnetic scaler 2610 .

The second magnetic scaler 2620 may be disposed on the second lens barrel 2400 . For example, the second magnetic scaler 2620 may be disposed on the second upper surface 2423 . In detail, the second magnetic scaler 2620 may be disposed in the third groove 2423h1 of the second lens barrel 2400 . The second magnetic scaler 2620 may move along the optical axis direction together with the second lens barrel 2400 .

The second magnetic scaler 2620 may include a plurality of magnets. For example, the second magnetic scaler 2620 may have an N pole and an S pole alternately disposed in the optical axis direction.

Also, the second sensing unit may be disposed adjacent to the second magnetic scaler 2620 . For example, the second sensing unit may be disposed to face the second magnetic scaler 2620 in a first direction (x-axis direction) or a second direction (y-axis direction). The second sensing unit may detect a position of the second magnetic scaler 2620 . Through this, the second sensing unit may detect the position and movement of the second lens barrel 2400 moving together with the second magnetic scaler 2620 .

Also, although not shown in the drawings, the second camera actuator 2000 according to the embodiment may further include a gyro sensor (not shown). The gyro sensor may be disposed in the second housing 2100 . The gyro sensor may detect a movement of a user using the camera actuator.

The second camera actuator 2000 according to the embodiment may include a second substrate 2800 . The second substrate 2800 may be disposed on the second housing 2100 . The second substrate 2800 may be disposed to surround a partial area of the second housing 2100 . For example, the second substrate 2800 may be disposed to surround a portion of the outer side of the second sub-housing 2120 . The second substrate 2800 may provide power or current to components disposed in the second housing 2100 . That is, the second board 2800 may be a circuit board, and may be electrically connected to a rigid printed circuit board (Rigid PCB), a flexible printed circuit board (Flexible PCB), a rigid flexible printed circuit board (Rigid Flexible PCB), etc. It may include a circuit board having a wiring pattern. The second substrate 2800 may be electrically connected to the above-described first circuit board 310 .

The second substrate 2800 may include a first end 2810 . The first end 2810 may be disposed on the first piezoelectric element 2310 of the third driving unit 2300 . For example, the first end 2810 may be disposed on the first disk portion 2311 of the first piezoelectric element 2310 . In detail, the first end 2810 may be disposed on one surface of the first disk unit 2311 . Also, the first end 2810 may be disposed on the second piezoelectric element 2510 of the fourth driving unit 2500 . For example, the second end 2820 may be disposed on the second disk portion 2511 of the second piezoelectric element 2510 . In detail, the first end 2810 may be disposed on one surface of the second disk unit 2511 .

The second substrate 2800 may include a second end 2820 . The first end 2810 may be spaced apart from the first end 2810 . Also, the second end 2820 may be disposed in a region that does not overlap the first end 2810 in the optical axis direction.

The second end 2820 may be disposed on the first piezoelectric element 2310 of the third driving unit 2300 . For example, the second end 2820 may be disposed on the first disk portion 2311 of the first piezoelectric element 2310 . In detail, the first end 2810 may be disposed on the other surface opposite to one surface of the first disk part 2311 . Also, the second end 2820 may be disposed on the second piezoelectric element 2510 of the fourth driving unit 2500 . For example, the second end 2820 may be disposed on the second disk portion 2511 of the second piezoelectric element 2510 . In detail, the second end 2820 may be disposed on the other surface opposite to one surface of the second disk portion 2511 .

That is, the second substrate 2800 may supply power to the first piezoelectric element 2310 and the second piezoelectric element 2510 . Accordingly, the third driving unit 2300 and the fourth driving unit 2500 may drive the first lens barrel 2200 and the second lens barrel 2400 by the applied power, respectively.

As described above, the second camera actuator 2000 according to the embodiment includes a third driving unit 2300 and a fourth driving unit 2500 including a piezoelectric element, and the first and second lens barrels 2200 and 2400 . ) may be moved in the optical axis direction by the third and fourth driving units 2300 and 2500 . However, the embodiment is not limited thereto, and the third and fourth driving units 2300 and 2500 may include a voice coli motor (VCM) or a shape memory alloy. In this case, the third and fourth driving units 2300 and 2500 may move the first and second lens barrels 2200 and 2400 by using the electromagnetic force of the VCM or a physical change of the shape memory alloy.

The second camera actuator 2000 according to the embodiment may include an image sensor 2900 . The image sensor 2900 may collect light passing in the order of the first lens unit 2105 , the second lens unit 2205 , and the third lens unit 2405 and convert it into an image. The image sensor 2900 may be disposed so that the lenses of the lens units 105 , 205 , and 405 coincide with an optical axis. The optical axis of the image sensor 2900 and the optical axis of the lens may be aligned.

30 is a perspective view of a mobile terminal to which a camera module according to an embodiment is applied.

Referring to FIG. 30 , the mobile terminal 3 may include a camera module 10 , an autofocus device 31 , and a flash module 33 provided on the rear side.

The camera module 10 may include an image capturing function and an auto focus function. For example, the camera module 10 may include an auto-focus function using an image.

The camera module 10 processes an image frame of a still image or a moving image obtained by an image sensor in a shooting mode or a video call mode. The processed image frame may be displayed on a predetermined display unit and stored in a memory. A camera (not shown) may also be disposed on the front of the mobile terminal body.

For example, the camera module 10 may include a first camera module 10A and a second camera module 10B. In this case, at least one of the first camera module 10A and the second camera module 10B may include the aforementioned camera module, for example, the camera module 10 according to FIGS. 1 to 37 . Accordingly, the camera module 10 may implement an OIS function together with a zoom function and an autofocus function.

The auto focus device 31 may include an auto focus function using a laser. The auto focus device 31 may be mainly used in a condition in which the auto focus function using the image of the camera module 10 is deteriorated, for example, in proximity of 10 m or less or in a dark environment. The autofocus device 31 may include a light emitting unit including a vertical cavity surface emitting laser (VCSEL) semiconductor device and a light receiving unit that converts light energy such as a photodiode into electrical energy.

The flash module 33 may include a light emitting device emitting light therein. The flash module 33 may be operated by a camera operation of a mobile terminal or a user's control.

Next, FIG. 31 is a perspective view of the vehicle 5 to which the camera module according to the embodiment is applied. For example, FIG. 31 is an external view of a vehicle including a vehicle driving assistance device to which the camera module 10 according to the embodiment is applied.

Referring to FIG. 31 , the vehicle 5 according to the embodiment may include wheels 53FL and 53RL that rotate by a power source and a predetermined sensor. The sensor may be a camera sensor 51, but is not limited thereto.

The camera 51 may be a camera module according to an embodiment, for example, a camera sensor to which the camera module 10 according to FIGS. 1 to 37 is applied.

The vehicle 5 of the embodiment may acquire image information through a camera sensor 51 that captures a front image or a surrounding image, and determines a lane unidentified situation using the image information and generates a virtual lane when unidentified can do.

For example, the camera sensor 51 may acquire a front image by photographing the front of the vehicle 5 , and a processor (not shown) may obtain image information by analyzing an object included in the front image.

For example, when an object such as a median, curb, or street tree corresponding to a lane, an adjacent vehicle, a driving obstacle, and an indirect road mark is captured in the image captured by the camera sensor 51, the processor detects the object Thus, it can be included in the image information.

In this case, the processor may further supplement the image information by acquiring distance information from the object detected through the camera sensor 51 . The image information may be information about an object photographed in an image.

The camera sensor 51 may include an image sensor and an image processing module. The camera sensor 51 may process a still image or a moving image obtained by an image sensor (eg, CMOS or CCD). The image processing module may process a still image or a moving image obtained through the image sensor, extract necessary information, and transmit the extracted information to the processor.

In this case, the camera sensor 51 may include a stereo camera to improve the measurement accuracy of the object and further secure information such as the distance between the vehicle 5 and the object, but is not limited thereto.

Features, structures, effects, etc. described in the above embodiments are included in at least one embodiment of the present invention, and are not necessarily limited to only one embodiment. Furthermore, features, structures, effects, etc. illustrated in each embodiment can be combined or modified for other embodiments by those of ordinary skill in the art to which the embodiments belong. Accordingly, the contents related to such combinations and modifications should be interpreted as being included in the scope of the present invention.

In addition, although the embodiment has been described above, it is only an example and does not limit the present invention, and those of ordinary skill in the art to which the present invention pertains are exemplified above in a range that does not depart from the essential characteristics of the present embodiment. It can be seen that various modifications and applications that have not been made are possible. For example, each component specifically shown in the embodiment can be implemented by modification. And differences related to such modifications and applications should be construed as being included in the scope of the present invention defined in the appended claims.

Claims (17)

housing;
a prism unit disposed in the housing;
a pressing part disposed between the housing and the prism unit;
a driving unit for tilting the prism unit;
and a substrate connected to the driving unit;
The pressurizing part,
a first pulling member disposed on the prism unit; and
and a second pulling member disposed on the substrate to face the first pulling member and electrically connected to the substrate. According to claim 1,
The first pulling member includes a magnet,
The second pulling member is a camera actuator including a first electronic component disposed on the substrate. 3. The method of claim 2,
The first electronic component is a camera actuator including a magnetic capacitor. According to claim 1,
The substrate is disposed on the outside of the housing,
The housing includes a housing hole formed in an area corresponding to the second pulling member,
At least a portion of the second pulling member is a camera actuator disposed in the housing hole. 5. The method of claim 4,
The substrate includes a substrate region on which the second pulling member is disposed,
The housing includes a seating groove formed in a region corresponding to the substrate region. 5. The method of claim 4,
and a moving plate disposed between the prism unit and the housing and pressed against the housing together with the prism unit by the pressing unit. 7. The method of claim 6,
The prism unit is
Prism mover having a receiving portion; and
Including a prism disposed in the receiving portion of the prism mover,
The moving plate is a camera actuator disposed between the opposite surfaces of the prism mover and the housing. 8. The method of claim 7,
The moving plate includes a hole formed in an area corresponding to the first pulling member and the second pulling member,
The first pulling member and the second pulling member are disposed to face each other directly with the hole interposed therebetween. 9. The method of claim 8,
The moving plate is
and a plurality of first moving protrusions disposed on a first surface facing the prism mover,
and a second moving protrusion disposed on a second surface facing the housing,
The center of the hole of the moving plate is,
A camera actuator included in a region connecting the centers of the first and second moving protrusions. 10. The method of claim 9,
A first imaginary straight line connecting the plurality of first moving protrusions to each other is orthogonal to a second imaginary straight line connecting the plurality of second moving protrusions to each other. 11. The method of claim 10,
The center of the hole of the moving plate is located at a point where the first virtual straight line and the second virtual straight line intersect. 8. The method of claim 7,
The housing includes a plurality of first recesses corresponding to the plurality of second moving projections of the moving plate,
The center of the hole of the housing is located on an imaginary straight line connecting the centers of the plurality of first recesses. 8. The method of claim 7
The prism mover includes a second recess corresponding to the first pulling member and a plurality of third recesses corresponding to a plurality of first moving protrusions of the moving plate,
The center of the second recess is located on an imaginary straight line connecting the centers of the plurality of third recesses. According to claim 1,
the substrate includes a first sub-region facing the side of the housing and a second sub-region other than the first sub-region;
and the driving unit includes a second electronic component disposed in the second sub-region. 13. The method of claim 12
The second electronic component is a camera actuator including a capacitor. a first camera actuator; and
a second camera actuator;
The first camera actuator performs an OIS (Optical Image Stabilizer) function,
The second camera actuator performs an auto focusing or zoom function,
The first camera actuator is a camera module comprising the camera actuator according to any one of claims 1 to 13. 15. The method of claim 14,
The light incident on the camera module from the outside,
A camera module in which a path of light is changed by the first camera actuator and is incident on the second camera actuator.

Images