Patent Publication Number: US-11656476-B2

Title: Folded module and portable electronic device including a folded module

Description:
CROSS-REFERENCE TO RELATED APPLICATIONS 
     This application claims the benefit under 35 USC 119(a) of Korean Patent Application No. 10-2020-0032090 filed on Mar. 16, 2020, and Korean Patent Application No. 10-2020-0079633 filed on Jun. 29, 2020, in the Korean Intellectual Property Office, the entire disclosures of which are incorporated herein by reference for all purposes. 
     BACKGROUND 
     1. Field 
     The following description relates to a folded module and a portable electronic device including a Folded Module. 
     2. Description of the Background 
     In recent years, cameras have been basically employed in portable electronic devices such as smartphones, tablet personal computers (PCs), and laptops, and autofocusing (AF), optical image stabilization (OIS), zoom functions and the like have been added to cameras for mobile terminals. 
     In addition, a camera module may be provided with an actuator directly moving a lens module or indirectly moving a reflection module including a reflective member to correct shake. In addition, the actuator may move the lens module or the reflection module in a direction intersecting that of an optical axis with driving force of a magnet and a coil. 
     On the other hand, in recent years, demand for video recording devices has increased rapidly, and there is a problem in that it is difficult to accurately correct shaking when shaking occurs continuously, such as in video recording, in the related art. 
     In addition, when a subject to be imaged moves during video recording, there may be inconvenience in that the user must directly move a mobile communications terminal to adjust the imaging direction of the camera module to the moving subject, and it may be difficult to accurately capture video footage. 
     The above information is presented as background information only to assist with an understanding of the present disclosure. No determination has been made, and no assertion is made, as to whether any of the above might be applicable as prior art with regard to the disclosure. 
     SUMMARY 
     This Summary is provided to introduce a selection of concepts in simplified form that are further described below in the Detailed Description. This Summary is not intended to identify key features or essential features of the claimed subject matter, nor is it intended to be used as an aid in determining the scope of the claimed subject matter. 
     In one general aspect, a folded module includes a housing, a carrier disposed in the housing, and a rotation holder disposed on the carrier and including a reflective member. The carrier is rotatable, with respect to the housing, around a first axis formed by one rotating shaft ball, the rotation holder is rotatable with respect to the carrier around a second axis formed by two ball members, and the first axis and the second axis intersect each other, and the one rotating shaft ball and the two ball members are disposed on a plane including both the first axis and the second axis. 
     When viewed in a first axis direction, the rotating shaft ball and the two ball members may be aligned in a second axis direction. 
     The carrier may include a first magnet for driving, and the rotation holder may include a second magnet for driving, and the first magnet and the second magnet may have a rounded shape. 
     Inner side ends of the first magnet and the second magnet may correspond to an arc shape of a circle centered on the rotating shaft ball. 
     The housing may include a first coil and a second coil which face the first magnet and the second magnet, in the housing. 
     At least one of the first coil and the second coil may be provided in plural. 
     The at least one of the first coil and the second coil provided in plural may be disposed in a bent shape as a whole. 
     The carrier may be supported on the housing by the one rotating shaft ball and two guide balls. 
     The carrier may include a first magnet for driving, and a center of the first magnet may be disposed inside of a triangle formed by the one rotating shaft ball and the two guide balls. 
     The guide ball may be disposed in a first guide portion and a second guide portion which are provided in the carrier and the housing, respectively. 
     The first guide portion and the second guide portion may have a linear shape. 
     One of the first guide portion and the second guide portion may have a width wider than a width of the other, for the guide ball to only contact a bottom surface while the guide ball is moving. 
     The guide ball may be supported by two points on both sides of one of the first guide portion and the second guide portion, and may be supported by one point only on a bottom surface of the other. 
     Positions of the one rotating shaft ball and the two ball members may be fixed. 
     A portable electronic device may include a plurality of camera modules having different angles of view, wherein at least one of the plurality of camera modules may be a camera module comprising the folded module. 
     The plurality of camera modules may be disposed in a plurality of cameras. 
     In another general aspect, a folded module includes a housing having an internal space of which at least a portion is rounded, a carrier disposed in the internal space and at least partially rounded, and a rotation holder disposed on the carrier. The carrier is rotatable, with respect to the housing, about a first axis, and both the rounded shape of the internal space and the rounded shape of the carrier correspond to a shape of an arc of a circle centered on the first axis. 
     A portable electronic device may include a plurality of cameras having camera modules having different angles of view, wherein at least one of the plurality of camera modules may include the folded module. 
     Other features and aspects will be apparent from the following detailed description, the drawings, and the claims. 
    
    
     
       BRIEF DESCRIPTION OF DRAWINGS 
         FIGS.  1 A and  1 B  are perspective views of portable electronic devices according to one or more examples. 
         FIG.  2    is a reference diagram illustrating an imaging angle of view of a plurality of camera modules mounted in a portable electronic device according to one or more examples. 
         FIG.  3    is a reference diagram illustrating an image display screen of a plurality of camera modules mounted in a portable electronic device according to one or more examples. 
         FIG.  4    is a perspective view of a camera module according to one or more examples. 
         FIGS.  5 A and  5 B  are cross-sectional views of a camera module according to one or more examples. 
         FIG.  6    is an exploded perspective view of a camera module according one or more examples. 
         FIG.  7    is a perspective view of a housing of a camera module according to one or more examples. 
         FIG.  8    is a perspective view of a reflection module and a lens module coupled to a housing of a camera module according to one or more examples. 
         FIG.  9    is an exploded perspective view of a housing and a reflection module of a camera module according to one or more examples. 
         FIG.  10 A  is a detailed upper exploded perspective view of a housing and a reflection module of a camera module according to one or more examples. 
         FIG.  10 B  is a detailed lower exploded perspective view of a housing and a reflection module of a camera module according to one or more examples. 
         FIG.  11    is an exploded perspective view of a holder and a carrier of a camera module according to one or more examples. 
         FIGS.  12 A and  12 B  are perspective views illustrating shapes in which an auxiliary member (stopper or damper) is coupled to a carrier in a camera module according to one or more examples. 
         FIG.  13    is a cross-sectional view for schematically illustrating a state in which a holder rotates relative to a carrier in a camera module according to one or more examples. 
         FIG.  14    is an exploded perspective view of a carrier and a housing of a camera module according to one or more examples. 
         FIG.  15    is a bottom perspective view of a reflection module of a camera module according to one or more examples. 
         FIGS.  16 A and  16 B  are reference diagrams illustrating an example in which a ball member of a camera module, according to one or more examples, is fixed to a guide portion to be supported by three points. 
         FIGS.  17 A and  17 B  are excerpt cross-sectional views of a state in which a carrier is coupled to a housing of a camera module according to one or more examples. 
         FIG.  18    is a bottom perspective view for schematically illustrating a state in which a carrier rotates relative to a housing in a camera module according to one or more examples. 
         FIG.  19    is a reference diagram for explaining the arrangement of a ball member in which a carrier is supported by a housing, and a positional relationship thereof with another member, in a camera module, according to one or more examples. 
         FIG.  20    is a reference diagram illustrating a driving unit used for a reflection module in a camera module according to one or more examples. 
         FIG.  21    is a reference diagram for explaining the positional relationship of two axes in which a reflection module rotates in a camera module according to one or more examples. 
         FIGS.  22 A and  22 B  are views for explaining the shape of an opening of a cover (cover member) in a camera module according to one or more examples. 
         FIG.  23    is a perspective view of an integrated substrate installed in a camera module according to one or more examples. 
         FIG.  24    is a perspective view illustrating a state in which an integrated substrate is installed in a housing of a camera module according to one or more examples. 
         FIG.  25    is a reference diagram illustrating that a camera module has two lens barrels according to one or more other examples. 
         FIG.  26    is a reference diagram illustrating that a camera module has three lens barrels according to one or more still other examples. 
     
    
    
     Throughout the drawings and the detailed description, the same reference numerals refer to the same elements. The drawings may not be to scale, and the relative size, proportions, and depiction of elements in the drawings may be exaggerated for clarity, illustration, and convenience. 
     DETAILED DESCRIPTION 
     Hereinafter, while examples of the present disclosure will be described in detail with reference to the accompanying drawings, it is noted that examples are not limited to the same. 
     The following detailed description is provided to assist the reader in gaining a comprehensive understanding of the methods, apparatuses, and/or systems described herein. However, various changes, modifications, and equivalents of the methods, apparatuses, and/or systems described herein will be apparent after an understanding of this disclosure. For example, the sequences of operations described herein are merely examples, and are not limited to those set forth herein, but may be changed as will be apparent after an understanding of this disclosure, with the exception of operations necessarily occurring in a certain order. Also, descriptions of features that would be well known in the art may be omitted for increased clarity and conciseness. 
     The features described herein may be embodied in different forms, and are not to be construed as being limited to the examples described herein. Rather, the examples described herein have been provided merely to illustrate some of the many possible ways of implementing the methods, apparatuses, and/or systems described herein that will be apparent after an understanding of this disclosure. 
     Herein, it is noted that use of the term “may” with respect to an embodiment or example, for example, as to what an embodiment or example may include or implement, means that at least one embodiment or example exists in which such a feature is included or implemented while all embodiments and examples are not limited thereto. 
     Throughout the specification, when an element, such as a layer, region, or substrate, is described as being “on,” “connected to,” or “coupled to” another element, it may be directly “on,” “connected to,” or “coupled to” the other element, or there may be one or more other elements intervening therebetween. In contrast, when an element is described as being “directly on,” “directly connected to,” or “directly coupled to” another element, there can be no other elements intervening therebetween. As used herein “portion” of an element may include the whole element or less than the whole element. 
     As used herein, the term “and/or” includes any one and any combination of any two or more of the associated listed items; likewise, “at least one of” includes any one and any combination of any two or more of the associated listed items. 
     Although terms such as “first,” “second,” and “third” may be used herein to describe various members, components, regions, layers, or sections, these members, components, regions, layers, or sections are not to be limited by these terms. Rather, these terms are only used to distinguish one member, component, region, layer, or section from another member, component, region, layer, or section. Thus, a first member, component, region, layer, or section referred to in examples described herein may also be referred to as a second member, component, region, layer, or section without departing from the teachings of the examples. 
     Spatially relative terms such as “above,” “upper,” “below,” “lower,” and the like, may be used herein for ease of description to describe one element&#39;s relationship to another element as illustrated in the figures. Such spatially relative terms are intended to encompass different orientations of the device in use or operation in addition to the orientation depicted in the figures. For example, if the device in the figures is turned over, an element described as being “above” or “upper” relative to another element will then be “below” or “lower” relative to the other element. Thus, the term “above” encompasses both the above and below orientations depending on the spatial orientation of the device. The device may also be oriented in other ways (for example, rotated 90 degrees or at other orientations), and the spatially relative terms used herein are to be interpreted accordingly. 
     The terminology used herein is for describing various examples only, and is not to be used to limit the disclosure. The articles “a,” “an,” and “the” are intended to include the plural forms as well, unless the context clearly indicates otherwise. The terms “comprises,” “includes,” and “has” specify the presence of stated features, numbers, operations, members, elements, and/or combinations thereof, but do not preclude the presence or addition of one or more other features, numbers, operations, members, elements, and/or combinations thereof. 
     Due to manufacturing techniques and/or tolerances, variations of the shapes illustrated in the drawings may occur. Thus, the examples described herein are not limited to the specific shapes illustrated in the drawings, but include changes in shape that occur during manufacturing. 
     The features of the examples described herein may be combined in various ways as will be apparent after gaining an understanding of this disclosure. Further, although the examples described herein have a variety of configurations, other configurations are possible as will be apparent after an understanding of this disclosure. 
     Examples disclosed herein describe a folded module in which shaking may be easily controlled in not only imaging a fixed subject, but also in capturing video of a moving subject, and a camera module including the same. 
     Examples disclosed herein describe a folded module capable of tracking a moving subject and correcting shake, and a portable electronic device including the same. 
       FIGS.  1 A and  1 B  are perspective views of portable electronic devices according to one or more examples, and  FIG.  2    is a reference diagram illustrating an imaging angle of view of a plurality of camera modules mounted in a portable electronic device according to one or more examples, and  FIG.  3    is a reference diagram illustrating an image display screen of a plurality of camera modules mounted in a portable electronic device according to one or more examples. 
     Portable electronic devices  1  and  2  may be portable electronic devices such as mobile communication terminals, smart phones, and tablet PCs. 
     As illustrated in  FIGS.  1 A and  1 B , a plurality of camera modules are mounted in the portable electronic devices  1  and  2  to capture a subject. For example, the portable electronic device may include a first camera module  1000  and a second camera module  500 . 
     In each of  FIGS.  1 A and  1 B , two camera modules may be provided.  FIG.  1 A  illustrates a case in which the first camera module  1000  and the second camera module  500  are sequentially disposed in a width direction (a relatively short side direction) of the portable electronic device  1 , while  FIG.  1 B  illustrates a case in which the first camera module  1000  and the second camera module  500  are sequentially disposed in a length direction (relatively long side direction) of the portable electronic device  2 . 
     In the case of using two camera modules, entrance ports through which light is incident on the two camera modules may be disposed to be as close to each other as possible. 
     Further, as illustrated in  FIG.  2   , the first camera module  1000  and the second camera module  500  are configured to have different angles of view. 
     The first camera module  1000  is configured with a relatively narrow angle of view (e.g., a telephoto camera), and the second camera module  500  is configured with a relatively wide angle of view (e.g., a wide-angle camera). In this case, the first camera module  1000  may correspond to a camera module described below with reference to  FIGS.  4  to  25   . 
     For example, the angle of view θ 1  of the first camera module  1000  may be formed in the range of 9° to 35°, and the angle of view θ 2  of the second camera module  500  may be formed in the range of 60° to 120°. 
     By designing different angles of view of the two camera modules as described above, an image of a subject may be imaged at various depths. 
     On the other hand, the portable electronic devices  1  and  2  according to one or more examples may have a Picture in Picture (PIP) function. 
     For example, the portable electronic device  1 ,  2  may display an image captured by a camera module having a relatively narrower field of view (e.g., by the first camera module  1000 ) in an image captured by a camera module having a relatively wider field of view (e.g., by the second camera module  500 ). 
     For example, a subject of interest may be imaged with a narrow angle of view (thus, the subject of interest is enlarged) and may be displayed in an image imaged with a wide angle of view. 
     When shooting a video, a subject of interest may move, and thus, a camera module having a narrower angle of view (for example, the first camera module  1000 ) may have a reflection module (folded module) that rotates to capture an image according to the movement of the subject of interest. Accordingly, the light incident on the first camera module  1000  may be reflected by a reflective member of the reflection module so that the light path is changed and then incident on a lens module. 
     For example, the first camera module  1000  may rotate the reflection module to track the movement of the subject of interest. 
     For example, the reflection module provided in the first camera module  1000  may be rotated based on a first axis (X axis) and a second axis (Y axis). Accordingly, the first camera module  1000  may correct shake that may occur during imaging. 
     In this case, the first axis (X axis) means an axis perpendicular to the optical axis (Z axis), and the second axis (Y axis) means an axis perpendicular to both the optical axis (Z axis) and the first axis (X axis). In addition, the first axis (X axis) and the second axis (Y axis), rotation axes of the reflection module of the first camera module  1000 , may intersect the optical axis (Z axis); and the optical axis (Z axis), the first axis (X axis) and the second axis (Y axis) may meet at approximately any one point. 
       FIG.  3    illustrates a range of a subject that may be imaged using the first camera module  1000  and the second camera module  500  installed in the portable electronic devices  1  and  2  according to one or more examples. 
     The second camera module  500  having a relatively wide field of view is capable of imaging a subject of a relatively large area, and the first camera module  1000  having a relatively narrow field of view may image a subject of a relatively narrow area. 
     In detail, the first camera module  1000  may image an inner area of a wide imaging range W captured by the second camera module  500 , as a teleimaging range T 1  to T 9 , and thus, an image captured as the teleimaging range T 1  to T 9  may be displayed inside of an image captured as the wide imaging range W. Of course, the teleimaging range T 1  to T 9  imaged by the first camera module  1000  may overlap a portion of the inner area of the wide imaging range W and an exterior thereof, or may be an outer area of the wide imaging range W. 
     On the other hand, since the first camera module  1000  includes a reflection module (folded module) that rotates about the first axis (X axis) and the second axis (Y axis) intersecting the optical axis (Z axis), the image captured by the first camera module  1000  may be inclined to an image captured by the second camera module  500  by changing an imaging angle by rotation of the reflection module, which is a case in which the angle of T 1  to T 3  or T 7  to T 9  of the teleimaging range illustrated in the reference diagram of  FIG.  3    is changed by the rotation of the reflection module. 
     Accordingly, in the case of an image (video) taken of T 1  to T 3  or T 7  to T 9  as a subject, among the teleimaging range taken by the first camera module  1000 , the image may be rotated to be aligned with a captured image (video) of the second camera module  500  to implement the PIP function. 
     To implement these functions, the camera modules  1000  and  500  of the portable electronic devices  1  and  2  may be provided with a control unit for editing an image or implementing a PIP function. 
       FIG.  4    is a perspective view of a camera module according to one or more examples,  FIGS.  5 A and  5 B  are cross-sectional views of a camera module according to one or more examples, and  FIG.  6    is an exploded perspective view of a camera module according to one or more examples,  FIG.  7    is a perspective view of a housing of a camera module according to one or more examples, and  FIG.  8    is a perspective view in which a reflection module and a lens module are combined in a housing of a camera module according to one or more examples. 
     Referring to  FIGS.  4  to  8   , a camera module  1000  according to one or more examples includes a reflection module  1100  (folded module) and a lens module  1200  provided in a housing  1010 . 
     The reflection module  1100  is configured to change the traveling direction of light. As an example, the travelling direction of the light incident through an opening  1031  of a cover  1030  (for example, a shield can) covering the camera module  1000  from the top may be changed to be directed toward the lens module  1200  through the reflection module  1100 . To this end, the reflection module  1100  may include a reflective member  1150  reflecting light. 
     The reflective member  1150  may include a chamfer  1153  in which a corner of the reflective member  1150  is cut to reduce light reflection or scattering. 
     The path of light incident in the thickness direction (Y-axis direction) of the camera module  1000  is changed by the reflection module  1100  to substantially coincide with the optical axis (Z-axis) direction. 
     To this end, the reflection module  1100  includes the reflective member  1150  reflecting light. Then, the light incident on the lens module  1200  may be converted into an electric signal by an image sensor (not illustrated) after passing through the plurality of lenses and then be stored. 
     The lens module  1200  includes a plurality of lenses through which light whose traveling direction has been changed by the reflection module  1100  passes. In addition, the lens module  1200  includes at least one lens barrel. Autofocusing (AF) or a zoom function may be implemented by the movement of at least one lens barrel in the optical axis direction (Z-axis). 
     An image sensor module (not illustrated) may include an image sensor (not illustrated) for converting light passing through a plurality of lenses into electric signals, and a printed circuit board (not illustrated) on which the image sensor is mounted. 
     In an internal space of the housing  1010 , the reflection module  1100  is provided in front of the lens module  1200 , centered on the lens module  1200 , and the image sensor module (not illustrated) is provided at the rear of the lens module  1200 . 
     In addition, a baffle  1300  may be provided at the rear of the lens module  1200  in the housing  1010  to block unnecessary light that may flow toward the image sensor, to reduce flare. In the drawing, only one baffle  1300  is illustrated, but two or more baffles  1300  may also be provided. 
     To implement a telephoto camera, the focal length may be increased, and accordingly, the distance between the lens module  1200  and the image sensor may be increased. 
     Accordingly, the baffle  1300  may be provided to block unnecessary light in an internal optical path of the housing  1010 . The baffle  1300  is a member fitted into the inner space of the housing  1010 , and may reduce the size of the optical path so that excessive reflection does not occur when light passes through the inner space of the housing  1010 . 
     The reflection module  1100  and the lens module  1200  are sequentially provided from one side to the other side in the housing  1010 . 
     For example, as illustrated in the drawing, the housing  1010  may be integrally provided so that both the reflection module  1100  and the lens module  1200  are inserted into the inner space thereof. 
     By using the integrated housing  1010 , there is no need to separately align the optical axes of the reflection module  1100  and the lens module  1200 , and since the housing is provided as one, the number of components may be reduced, and thus assembly may be very easy. 
     However, examples of the present disclosure are not limited thereto, and for example, separate housings into which the reflection module  1100  and the lens module  1200  are inserted respectively may be interconnected. 
     In this embodiment, the reflective member  1150  provided in the reflection module  1100  may have a rotation angle of approximately ±10 degrees with respect to the first axis (X-axis) (a total of 20 degrees may be rotated), and a rotation angle of approximately ±25 degrees with respect to the second axis (Y-axis) (a total of 50 degrees may be rotated), and for example, may rotate in a fairly large range. 
     Accordingly, a space in the housing  1010  in which the reflection module  1100  is provided may have a greater width, for example, a greater length in the X-axis direction, than that of a space in which the lens module  1200  is provided. 
     For example, in the housing  1010 , the width of the space in which the reflection module  1100  is provided (length in the X-axis direction) is referred to as ‘A’, and the width of the space in which the lens module  1200  is provided (the length in the X-axis direction) is referred to ‘B’, the relationship of ‘2&gt;A/B&gt;1’ may be satisfied. 
     The light whose path is changed by the reflection module  1100  is incident on the lens module  1200 . Therefore, a plurality of lenses provided in the lens module  1200  are provided to be stacked in a Z-axis direction, which is a direction in which light is emitted from the reflection module  1100 . 
     In addition, the lens module  1200  includes a third driving unit to implement autofocusing (AF) and zoom functions. 
     The lens module  1200  includes a lens holder  1220  provided in a second space  1090  of the housing  1010  and including a stacked lens therein, and a third driving unit for moving the lens holder  1220 . 
     The lens holder  1220  accommodates a plurality of lenses for imaging a subject, and the plurality of lenses are mounted in the lens holder  1220  along an optical axis. The lens holder  1220  may separately include a lens barrel in which a plurality of lenses are stacked, and a carrier surrounding the lens barrel. Alternatively, a plurality of lenses may be stacked in the lens holder  1220  itself. 
     The lens holder  1220  is configured to move in the direction of the optical axis (Z axis) to implement an autofocusing or zoom function. 
     The third driving unit generates driving force so that the lens holder  1220  may move in the optical axis (Z axis) direction. For example, the third driving unit may move the lens holder  1220  to change the distance between the lens holder  1220  and the reflection module  1100 . 
     For example, the third driving unit includes a plurality of third magnets  1241   a  and  1243   a  and a plurality of third coils  1241   b  and  1243   b  disposed to face the plurality of third magnets  1241   a  and  1243   a.    
     When power is applied to the plurality of third coils  1241   b  and  1243   b , the lens holder  1220  on which the plurality of third magnets  1241   a  and  1243   a  are mounted may be moved in the direction of the optical axis (Z axis) by an electromagnetic influence between the plurality of third magnets  1241   a  and  1243   a  and the plurality of third coils  1241   b  and  1243   b.    
     The plurality of third magnets  1241   a  and  1243   a  are mounted in the lens holder  1220 . For example, the plurality of third magnets  1241   a  and  1243   a  may be mounted on the side of the lens holder  1220 . 
     The plurality of third coils  1241   b  and  1243   b  are mounted in the housing  1010 . For example, a main substrate  1070  may be mounted in the housing  1010  in a state in which the plurality of third coils  1241   b  and  1243   b  are mounted on the main substrate  1070 . 
     In this case, for convenience of explanation, in the drawing, both a coil for the reflection module  1100  and a coil for the lens module  1200  are mounted on the main substrate  1070 , but the configuration is not limited thereto, and the main substrate  1070  may be provided as separate substrates on which the coil for the reflection module  1100  and the coil for the lens module  1200  are mounted respectively. 
     In this embodiment, when the lens holder  1220  is moved, a closed loop control method in which the position of the lens holder  1220  is sensed and fed back is used. Therefore, a third position detection sensor  1243   c  is required for closed loop control. The third position detection sensor  1243   c  may be a Hall sensor. 
     The third position detection sensor  1243   c  is disposed inside or outside of at least one third coil  1243   b , and the third position detection sensor  1243   c  may be mounted on the main substrate  1070  on which the third coil  1243   b  is mounted. 
     The lens holder  1220  is provided in the housing  1010  to be movable in the optical axis (Z axis) direction. For example, a plurality of third ball members  1250  are disposed between the lens holder  1220  and the housing  1010 . 
     The plurality of third ball members  1250  serve as bearings that guide the movement of the lens holder  1220 , and also function to maintain a gap between the lens holder  1220  and the housing  1010 . 
     The plurality of third ball members  1250  are configured to roll or slide in the optical axis (Z axis) direction when driving force is generated in the optical axis (Z axis) direction. Accordingly, the plurality of third ball members  1250  guide the movement of the lens holder  1220  in the optical axis (Z axis) direction. 
     A plurality of seventh guide portions  1221  and  1231  accommodating the plurality of third ball members  1250  are formed on at least one of surfaces of the lens holder  1220  and the housing  1010 , facing each other. 
     The plurality of third ball members  1250  are accommodated in the plurality of seventh guide portions  1221  and  1231  and are fitted between the lens holder  1220  and the housing  1010 . 
     The plurality of seventh guide portions  1221  and  1231  may have a shape having a length in the optical axis (Z axis) direction. 
     The plurality of third ball members  1250  are restricted in movement in the X-axis and Y-axis directions perpendicular to the optical axis in the state of being accommodated in the plurality of seventh guide portions  1221 ,  1231  and only move in the optical axis (Z-axis) direction. For example, the plurality of third ball members  1250  may only roll in the optical axis (Z axis) direction. 
     To this end, the plurality of seventh guide portions  1221 ,  1231  may respectively be formed in a shape elongated in the optical axis (Z axis) direction. In addition, cross-sections of the plurality of seventh guide portions  1221  may have various shapes such as a curved shape or a polygonal shape. 
     In this case, the lens holder  1220  is pressed toward the housing  1010  so that the plurality of third ball members  1250  may maintain contact thereof with the lens holder  1220  and the housing  1010 . 
     To this end, a third yoke  1260  may be mounted on the bottom surface of the housing  1010  to face the plurality of third magnets  1241   a  and  1243   a  mounted in the lens holder  1220 . The third yoke  1260  may be a magnetic material. 
     Attractive force acts between the third yoke  1260  and the plurality of third magnets  1241   a  and  1243   a . Accordingly, the lens holder  1220  may be moved in the optical axis (Z axis) direction by the driving force of the third driving unit in a state in contact with the plurality of third ball members  1250 . 
     The lens holder  1220  is supported by the housing  1010  by the attractive force of the third yoke  1260  and the plurality of third magnets  1241   a  and  1243   a , but accordingly, the lens holder  1220  may be separated by an external force such as external impacts or the like to collide with other members such as the cover  1030  or the like. 
     Accordingly, in an example of the present disclosure, a third auxiliary member  1280  may be provided to prevent the lens holder  1220  from being displaced and to absorb an impact even in the case in which shaking by an external force occurs. 
     The third auxiliary member  1280  serves as a stopper or damper, is provided in an approximately ‘ E’ shape, and both ends thereof may be fitted and fixed to the housing  1010  to cover the lens holder  1220  from the top. 
     The third auxiliary member  1280  may additionally include a damping member formed of an elastic material on various portions thereof to absorb shock. For example, in the process of moving the lens holder  1220  in the optical axis direction, the front end or the rear end of the lens holder  1220  in the optical axis direction may contact the third auxiliary member  1280 , and in this case, both ends of the third auxiliary member  1280  may be provided with a damper  1283 . 
     The third auxiliary member  1280  may be provided as two third auxiliary members to be installed on both sides of the lens holder  1220 , respectively. 
     The housing  1010  is covered by the cover  1030 . 
     The cover  1030  has an opening  1031  so that light is incident therein, and the light incident through the opening  1031  is changed in a traveling direction by the reflection module  1100  so that the light enters the lens module  1200 . The cover  1030  may be integrally provided to cover the entire housing  1010 , or may be divided into separate members covering the reflection module  1100  and the lens module  1200 , respectively. 
     The opening  1031  provided in the cover  1030  may be provided in a substantially hexagonal shape. The reflection module  1100 , according to the present embodiment, is capable of relatively large rotation based on the second axis (Y axis), and accordingly, when the reflective member  1150  is rotated to the maximum, based on the second axis (Y-axis), a short edge of the reflective member  1150  and the side of the cover  1030  may be disposed substantially parallel to each other. 
     Referring further to  FIG.  7   , the housing  1010  includes the reflection module  1100  and the lens module  1200  in an internal space. Accordingly, the internal space of the housing  1010  may be divided into a first space  1080  in which the reflection module  1100  is disposed and a second space  1090  in which the lens module  1200  is disposed. 
     The first space  1080  in which the reflection module  1100  is disposed in the housing  1010  may be provided so that the inner space has a rounded shape, such that a carrier  1110  rotating relatively widely may be easily rotated. 
     Further, since the plurality of coils  1114 ,  1134 ,  1241   b , and  1243   b  are provided in the housing  1010  while being mounted on the main substrate  1070 , a plurality of through-holes  1010   a ,  1010   b ,  1010   c , and  1010   d  may be provided in the housing  1010  in such a manner that the plurality of coils  1114 ,  1134 ,  1241   b , and  1243   b  are exposed to the inner space of the housing  1010 . 
       FIG.  9    is an exploded perspective view of a housing and a reflection module of a camera module according to one or more examples, and  FIG.  10 A  is a detailed upper exploded perspective view of a housing and a reflection module of a camera module according to one or more examples, and  FIG.  10 B  is a detailed lower exploded perspective view of a housing and a reflection module of a camera module according to one or more examples. 
     Referring further to  FIGS.  9  to  10 B , the reflection module  1100  includes the carrier  1110  provided in the housing  1010  and a rotation holder  1130  provided in the carrier  1110 . 
     The carrier  1110  rotates with respect to the housing  1010  about a second axis A 2  (an axis parallel to the Y axis), and the rotation holder  1130  rotates with respect to the carrier  1110  about a first axis A 1  (an axis parallel to the X axis). 
     Referring further to  FIGS.  14  to  19   , the carrier  1110  is provided in the first space  1080  of the housing  1010 . The carrier  1110  is closely supported with a first ball member  1111  sandwiched between the bottom surface of the housing  1010  and the carrier  1110 , and the carrier  1110  is rotationally driven by a first driving unit. At least a portion of the first space  1080  may be provided in a rounded shape to facilitate a relatively large rotation of the carrier  1110 . In more detail, at least a portion of the inner surface of the first space  1080  may be provided to correspond to an arc shape of a circle centered on the second axis A 2 . 
     In addition, the carrier  1110  may be provided such that at least a portion thereof has a rounded shape, to facilitate the relatively large rotation thereof in the first space  1080 . In further detail, at least a portion of the carrier  1110  may be provided corresponding to the arc shape of a circle centered on the second axis A 2 . 
     Further, the rotation holder  1130  mounted on the carrier  1110  may be provided such that at least a portion thereof has a rounded shape, to facilitate the relatively large rotation in the first space  1080 . More specifically, at least a portion of the rotation holder  1130  may be provided to correspond to the arc shape of a circle centered on the second axis A 2 . 
     The first driving unit includes a first magnet  1113  and a first coil  1114 . 
     Accordingly, a first yoke  1112  is provided on the bottom surface of the housing  1010 , and the first yoke  1112  enables the carrier  1110  to be in close contact with the bottom surface of the housing  1010  by attraction force with the first magnet  1113  provided in the carrier  1110 . 
     At least three first ball members ( 1111 )  1111   a ,  1111   b , and  1111   c  may be provided between the bottom surface of the housing  1010  and the carrier  1110 . 
     One of the three first ball members, a rotating shaft ball  1111   a , forms the second axis A 2  (an axis parallel to the Y-axis), which is a rotation axis in which the carrier  1110  rotates with respect to the housing  1010 , and the other ball members, guide balls  1111   b  and  1111   c  may help to facilitate rotation of the carrier  1110 . 
     In this case, the second axis A 2  may be perpendicular to a plane including a triangle connecting the three first ball members ( 1111 )  1111   a ,  1111   b , and  1111   c.    
     Since the rotating shaft ball  1111   a  should form a rotating shaft, the position is not changed and the rotating shaft ball may be rotated or fixed in place by itself while being fixed in one place. Accordingly, the carrier  1110  may rotate about the rotating shaft ball  1111   a.    
     The guide balls  1111   b  and  1111   c  are provided on a position other than the rotation axis, to guide the rotation of the carrier  1110 , and thus may be provided to roll or slide. Accordingly, the movement of the carrier  1110  may be guided by the rolling or sliding of the guide balls  1111   b  and  1111   c.    
     Accordingly, a guide portion or the like into which the rotating shaft ball  1111   a  is inserted is provided on the bottom surface of the housing  1010  and the lower surface of the carrier  1110 . 
     A first guide portion  1121   a  may be provided in the housing  1010  such that the rotating shaft ball  1111   a  is inserted, and a second guide portion  1121   b  may be provided in the carrier  1110 . Since the rotating shaft ball  1111   a  having a spherical shape should not be moved in position, at least one of the first guide portion  1121   a  and the second guide portion  1121   b  may be supported by at least three points with the rotating shaft ball  1111   a.    
     For example, the first guide portion  1121   a  and the second guide portion  1121   b  may be provided in a shape in which each corner is cut in a triangular pyramid (tetrahedral) shape as illustrated in  FIGS.  16 A and  16 B , which will be described later. 
     Alternatively, the rotating shaft ball  1111   a  may be fixedly provided to one of the housing  1010  or the carrier  1110 , and the guide portion that is not moved in position is provided in the other of the housing  1010  or the carrier  1110 . 
     Third guide portions  1123   a  may be provided in the housing  1010  and fourth guide portions  1123   b  may be provided in the carrier  1110 , such that the guide balls  1111   b  and  1111   c  are inserted. Since the spherical guide balls  1111   b  and  1111   c  are preferably moved in position, the third guide portion  1123   a  and the fourth guide portion  1123   b  may be provided to be elongated in the rotation direction of the carrier  1110 . 
     In this embodiment, the third guide portion  1123   a  and the fourth guide portion  1123   b  may be provided in a straight line shape in the rotation direction. 
     In the case in which the third guide portion  1123   a  and the fourth guide portion  1123   b  are provided in a straight line shape, one of the third guide portion  1123   a  and the fourth guide portion  1123   b  may be provided to have an additional degree of freedom. This is because the guide balls  1111   b  and  1111   c  support the rotating carrier  1110 , and thus, if configured to be only moved in a straight direction, the guide may not be properly performed. 
     For example, among the third guide portion  1123   a  and the fourth guide portion  1123   b , as illustrated in  FIGS.  17 A and  17 B , respectively, selectively, one is supported by at least two points, including a side surface of a ‘V-shaped’ or ‘U-shaped’ groove, by the guide balls  1111   b  and  1111   c , and the other is supported by one point on a substantially flat bottom surface by the guide ball  1111   b ,  1111   c , not contacting the side surface of the groove. 
     Accordingly, there is no restraint on the side surface inside of the guide portion that does not contact the side of the groove and is supported only by one point on the bottom surface, and thus, the ball may move left and right along the bottom surface, thereby providing an additional degree of freedom. Therefore, even when the carrier  1110  rotates, the rolling of the guide balls  1111   b  and  1111   c  may be relatively smooth. 
     Referring to  FIG.  17 A , a rotating portion  1110  which rotates relative to a fixed portion  1010  with respect to a rotation axis may be guided by the guide balls  1111   b  and  1111   c . The guide balls  1111   b  and  1111   c  may include a third guide portion  1123   a  and a fourth guide portion  1123   b  that are provided in a straight line substantially in a rotational direction. In this case, the third guide portion  1123   a  provided in the housing that is the fixed portion  1010  has a bottom surface  26   a  and both side surfaces  25   a , and the guide balls  1111   b  and  1111   c  may be supported by at least two points on both side surfaces  25   a  (may also be supported up to the bottom surface  26   a ). 
     In addition, the fourth guide portion  1123   b  provided in the carrier, which is the rotating portion  1110 , has a bottom surface  26   b  and both side surfaces  25   b , and the guide balls  1111   b  and  1111   c  are by one point on the bottom surface  26   a . When the guide balls  1111   b  and  1111   c  come into contact with one of the side surfaces  25   b , the guide balls  1111   b  and  1111   c  are no longer able to roll over, and thus, both side surfaces  25   b  may serve as stoppers. 
     In this manner, the guide balls  1111   b  and  1111   c  are supported by at least two points in the third guide portion  1123   a  provided in the fixed portion  1010  to move linearly along a predetermined path of the guide portion, and are supported by one point on the bottom surface in the fourth guide portion  1123   b  provided in the rotating portion  1110 . The guide balls  1111   b  and  1111   c  supported by one point form a curved moving path on the bottom surface  26   b  of the guide portion of the rotating portion  1110  according to the movement of the carrier, which is the rotating portion  1110 . 
     In addition, referring to  FIG.  17 B , the rotating portion  1110  which rotates relative to the fixed portion  1010  with respect to the rotation axis may be guided by the guide balls  1111   b  and  1111   c . The guide balls  1111   b  and  1111   c  may include a third guide portion  1123   a - 1  and a fourth guide portion  1123   b - 1 , provided in a straight line in the rotation direction. 
     In this case, the third guide portion  1123   a - 1  provided in the housing, which is the fixed portion  1010 , has a bottom surface  26   a - 1  and both side surfaces  25   a - 1 , and the guide balls  1111   b  and  1111   c  are supported by one point on the bottom surface  26   a - 1 . When the guide balls  1111   b  and  1111   c  come into contact with either of both side surfaces  25   a - 1 , the guide balls  1111   b  and  1111   c  cannot rolling move any more, and thus, both side surfaces  25   a - 1  may function as stoppers. In addition, the fourth guide portion  1123   b - 1  provided in the carrier, which is the rotating portion  1110 , has a bottom surface  26   b - 1  and both side surfaces  25   b - 1 , and the guide balls  1111   b  and  1111   c  may be supported by at least two points on both side surfaces  25   b - 1  (may also be supported up to the bottom surface  26   b - 1 ). 
     In this manner, the guide balls  1111   b  and  1111   c  are supported by at least two points in the fourth guide portion  1123   b - 1  provided in the rotating portion  1110  to move linearly along a predetermined path of the guide portion, and are supported by one point on the bottom surface in the third guide portion  11231 - 1  provided in the fixed portion  1010 , and the one point supported guide balls  1111   b  and  1111   c  form a curved path on the bottom surface  26   a - 1  of the guide portion of the fixed portion  1010  according to the movement of the carrier, which is the rotating portion  1110 . 
     Referring further to  FIGS.  18  to  20   , a first coil  1114  is provided on the bottom of the housing  1010 , and a first magnet  1113  facing the first coil  1114  is provided on the carrier  1110 . In addition, to detect the rotation position of the carrier  1110 , a first position detection sensor  1115  may be provided in the housing  1010  to face the first magnet  1113 . 
     The first magnet  1113  may be provided in a rounded shape in consideration of the rotation of the carrier  1110 . The first magnet  1113  may have an inner end and an outer end in a circular arc shape, and in more detail, the first magnet  1113  has an inner end and an outer end of a circular arc centered on the rotating shaft ball  1111   a.    
     For example, the first magnet  1113  may be provided in a shape in which a donut is partially cut off. In addition, the first magnet  1113  may be provided to have an N pole and an S pole in the rotation direction. 
     In the carrier  1110 , a rear yoke  1113   a  that maintains or further improves the performance of the first magnet  1113  by focusing magnetism on the rear surface of the first magnet  1113 , for example, between the carrier  1110  and the first magnet  1113 , may be further provided. In consideration of the fact that the first magnet  1113  has a rounded shape, the rear yoke  1113   a  may be provided in a relatively larger shape to face the first magnet  1113 . 
     In addition, the first coil  1114  may also be disposed in a position corresponding to the first magnet  1113 . The first coil  1114  may be provided as one or two or more first coils, and the first coil  1114  may be disposed in a rounded shape or a bent shape corresponding to the shape of the first magnet  1113 . For example, when two first coils  1114  are provided, the coils may be disposed to implement a bent shape as a whole, for example, a ‘V’ shape. 
     For example, when the first magnet  1113  is magnetized with three poles of ‘N pole, S pole, N pole’ or ‘S pole, N pole, S pole’ in the rotation direction of the carrier  1110 , the first coil  1114  may be provided in two so that respective coils may be disposed to face the poles at the middle and left and right ends at the same time. 
     For example, in the case of the ‘N pole, S pole, N pole’ magnet, one of the two first coils  1114  may be disposed to substantially face the N pole on the left and the left half of the S pole in the middle, and the other may be disposed to substantially face the N pole on the right and the right half of the S pole in the middle. 
     Of course, the first magnet  1113  may be provided as two magnets each separated by two poles, and may be disposed to face the two first coils  1114 , respectively. In this case, the first magnet  1113  may have a rounded shape or a straight shape. 
     On the other hand, the first magnet  1113  may be provided between the first ball members ( 1111 )  1111   a ,  1111   b , and  1111   c . In more detail, the first magnet  1113  may be disposed between the rotating shaft ball  1111   a  and the guide balls  1111   b  and  1111   c.    
     The first ball members ( 1111 )  1111   a ,  1111   b , and  1111   c , for example, one rotating shaft ball  1111   a  and two guide balls  1111   b  and  1111   c , may be disposed in a triangular shape. 
     The center of gravity or the geometric center of the first magnet  1113  may be provided inside of a triangle formed by the first ball members ( 1111 )  1111   a ,  1111   b , and  1111   c . The carrier  1110  is in close contact with the housing  1010  by the attraction between the first yoke  1112  and the first magnet  1113 , and the carrier  1110  is not inclined to either side by the attraction generated at this time. 
     On the other hand, since the center of gravity or the geometric center of the first magnet  1113  is provided inside of the triangle formed by the first ball members ( 1111 )  1111   a ,  1111   b , and  1111   c , when the power supply to the reflection module  1100  is stopped, the first carrier  1110  may be moved to the initial position by the attraction of the magnet  1113  and the first yoke  1112 . 
     The initial position may be adjusted depending on the arrangement of the first magnet  1113  and the first yoke  1112 , for example, in the case of the present embodiment, the position in which the reflective member  1150  is aligned parallel to the optical axis direction may be preferable. 
     The two first coils  1114  facing the first magnet  1113  may also be disposed between the rotating shaft ball  1111   a  and the guide balls  1111   b  and  1111   c.    
     In addition, the first position detection sensor  1115  for sensing the position of the carrier  1110  may be disposed to face the first magnet  1113 . The first position detection sensor  1115  may be a Hall sensor. One or two or more first position detection sensors  1115  may be provided for more accurate position detection of the carrier  1110 . 
     The first position detection sensor  1115  may be provided between the first coil  1114  and the rotating shaft ball  1111   a  when viewed in a plan view. In the case of the rotating carrier  1110 , the moving distance thereof becomes longer as the distance from the rotating shaft  1111   a  increases, and when moving away from the rotating shaft ball  1111   a  forming the rotating shaft by considering that the carrier  1110  of this embodiment rotates a large amount (rotation angle approximately ±25 degrees), since the movement distance increases, a relatively large number of position detection sensors may be required. 
     Accordingly, in the present embodiment, the first position detection sensor  1115  may be disposed in an inside of the first coil  1114 , for example, on a position close to the rotating shaft ball  1111   a  forming a rotating shaft. 
     On the other hand, a first yoke  1112  may be provided in the housing  1010  to face the first magnet  1113 . The first yoke  1112  may serve as a pulling yoke that closely contacts the carrier  1110  to the housing  1010 . 
     In addition, the first yoke  1112  may be provided in the housing  1010  to surround (finishing) the first coil  1114 , and accordingly, magnetic field (magnetic) leakage of the first magnet  1113  or the first coil  1114  may be prevented. 
     The first yoke  1112  may enable the carrier  1110  to be in close contact with the housing  1010  by the attraction with the first magnet  1113 , and thus, the first yoke  1112  may be provided to face the first magnet  1113  with the coil  1114  or the like therebetween, in a shape similar to the first magnet  1113 . 
     For example, the first yoke  1112  may be provided in a rounded shape in which a donut is partially cut, and may be provided to be larger than both the first magnet  1113  and the first coil  1114  to surround the same. 
     With additional reference to  FIGS.  11  to  13   , the rotation holder  1130  is provided in the carrier  1110 . The rotation holder  1130  is provided with the reflective member  1150 , and the rotation holder  1130  is rotationally driven by a second driving unit. The second driving unit includes a second magnet  1133  and a second coil  1134 . 
     The reflective member  1150  may change the traveling direction of light. For example, the reflective member  1150  may be a mirror or a prism reflecting light (for convenience of explanation, the reflective member  1150  is illustrated as a prism in the drawings related to an embodiment). 
     The reflective member  1150  is fixed to the rotation holder  1130 . The rotation holder  1130  is provided with a mounting surface  1136  on which the reflective member  1150  is mounted. 
     The mounting surface  1136  of the rotation holder  1130  may be configured as an inclined surface such that the path of light is changed. For example, the mounting surface  1136  may be an inclined surface inclined 30 to 60 degrees with respect to the optical axis (Z axis) of the plurality of lenses. The inclined surface of the rotation holder  1130  may face the opening  1031  of the cover  1030  through which light is incident. 
     Further, on an end of the mounting surface  1136  in the lens module ( 1200 ) direction in the optical axis direction, a plurality of protrusions  1136   a  may be provided toward the reflective member  1150  to reduce the occurrence of flares due to light reflection, diffraction, or the like. 
     The end of the protrusion  1136   a  may be sharply formed, and the protrusion  1136   a  may be provided over a predetermined area of the end portion of the mounting surface  1136 . 
     The rotation holder  1130  may be supported in close contact with the carrier  1110  with two second ball members  1131  sandwiched therebetween. 
     Accordingly, the carrier  1110  and the rotation holder  1130  are selectively provided with a first magnetic body  1138  and a second magnetic body  1132 , respectively, and the rotation holder  1130  is in close contact with the carrier  1110  by the attraction of the first magnetic body  1138  and the second magnetic body  1132 . 
     When the first magnetic body  1138  is a magnet, for example, the fourth magnet  1138 , a rear yoke is further provided on the rear surface of the fourth magnet  1138  to maintain or further improve the performance of the fourth magnet  1138  by focusing magnetism. 
     As illustrated in detail in  FIG.  20   , when the fourth magnet  1138  is provided in the carrier  1110 , the rear yoke  1113   a  may be used in common. For example, the carrier  1110  is provided with the rear yoke  1113   a  that maintains or further improves the performance of the first magnet  1113  by focusing the magnetism of the first magnet  1113 , and the rear yoke  1113   a  may be provided to cover the rear surface of the fourth magnet  1138  by increasing the length of the rear yoke  1113   a . Accordingly, the rear yoke  1113   a  may include an extension portion  1113   b  extending to the rear surface of the fourth magnet  1138 . 
     In this case, in the case of the reflection module  1100  (folded module) according to one or more examples, a first magnetic body  1138  and a second magnetic body  1132  may be provided selectively on the carrier  1110  and the rotation holder  1130 . Further, the rotation holder  1130  may be provided to be supported by the carrier  1110  by the attractive force of the first magnetic body  1138  and the second magnetic body  1132 . The first magnetic body  1138  and the second magnetic body  1132  may be provided to face each other in the second axis A 2  direction. The reflection module  1100  (folded module) according to the present embodiment has a structure in which the rotation holder  1130  is placed on an upper portion of the carrier  1110 , and thus, the rotation holder  1130  may be supported toward the carrier  1110  for driving stability. 
     In this case, the first magnetic body  1138  or the second magnetic body  1132  is a magnetic material, and may be a material having magnetism, for example, a material that is magnetized in a magnetic field (including both metal or non-metal materials). The first magnetic body  1138  or the second magnetic body  1132  may be a pulling magnet or a pulling yoke. 
     For example, when the first magnetic body  1138  is a pulling magnet, the second magnetic body  1132  may be a pulling yoke or a pulling magnet. In addition, when the first magnetic body  1138  is a pulling yoke, the second magnetic body  1132  may be a pulling magnet. 
     The rotation holder  1130  rotates relative to the carrier  1110  based on a first axis (an axis parallel to the X axis) connecting the two second ball members  1131  to each other. 
     Accordingly, the carrier  1110  is provided with two first support portions  1141  on both sides in the X-axis direction, and the rotation holder  1130  is provided with two second support portions  1143  which are mounted on the first support portions  1141  and are disposed on both sides in the X-axis direction to correspond to each other. 
     The second ball member  1131  may be provided between the pairs of the first support portions  1141  and the second support portions  1143  provided on both sides, respectively. In addition, the two second ball members  1131  may form a first axis A 1  that is parallel to the X-axis direction and is a rotation axis of the rotation holder  1130 . 
     Since the two second ball members  1131  need to form a rotating shaft, the positions thereof are not changed and may be rotated or fixed in place by themselves while being fixed in one place. Accordingly, the rotation holder  1130  may rotate about the first axis A 1  formed by the two second ball members  1131  as an axis. 
     Accordingly, the first support portion  1141  and the second support portion  1143  are provided with a guide portion (for example, a groove, a notch, a collar, a divot, etc.) into which the second ball member  1131  is inserted. 
     The first support portion  1141  of the carrier  1110  is provided with a fifth guide portion  1141   a , and the second support portion  1143  of the rotation holder  1130  is provided with a sixth guide portion  1143   a , such that the second ball members  1131  are inserted. 
     Since the spherical second ball member  1131  should not be moved in position, at least one of the fifth guide portion  1141   a  and the sixth guide portion  1143   a  may be supported by at least three points by the second ball member  1131 . In this case, the rotating shaft ball  1111   a  may be provided to be fixed to either the housing  1010  or the carrier  1110 , and a guide portion that is not moved in position may be provided on the other of the housing  1010  or the carrier  1110 . 
     For example,  FIGS.  16 A and  16 B  are reference diagrams illustrating an example of a structure in which a ball member of a camera module, according to one or more examples, is fixed to be supported by three points, on a guide portion. 
     Referring to  FIGS.  16 A and  16 B , since the ball members  1111   a  and  1131  forming the rotating shaft cannot move their position, the positions thereof may be fixed by a three-point support structure. 
     The ball members  1111   a  and  1131  may be inserted into the guide portions  1121   a ,  1121   b ,  1141   a , and  1143   a.    
     In addition, the ball member inserted into the guide portion may maintain a supported state by contacting the guide portion only at three points P to maintain an accurate position inside the guide portion. 
     If the ball member contacts the guide portion at four or more points, it may be driven in a biased state, such as forming contact at only three points according to manufacturing tolerances or driving conditions of the guide portion or the ball member. 
     To this end, the guide portions  1121   a ,  1121   b ,  1141   a , and  1143   a  may be provided in a shape in which each corner is cut in a triangular pyramid (tetrahedron) shape. 
     The spherical ball members  1111   a  and  1131  are supported at three points P on the inner side surfaces of the guide portions  1121   a ,  1121   b ,  1141   a , and  1143   a , and thus, the guide portions include three first surfaces  21 . Therefore, the three contact points P of the ball members  1111   a  and  1131  and the guide portions  1121   a ,  1121   b ,  1141   a  and  1143   a  are formed on the first surfaces  21 . 
     In this case, the first surface  21  is a portion of the side surface, and the side surface includes the first surface  21  on which the ball members  1111   a  and  1131  contact, and a second surface  23  provided between the first surfaces  21  (for example, provided adjacent to two of the first surfaces) and not in contact with the ball members  1111   a  and  1131 . 
     In addition, a triangular pyramid (tetrahedron) may be implemented by extending the three side surfaces (first surfaces  21 ) to which the ball members  1111   a  and  1131  are respectively in point contact. For example, a line segment formed by extending the three side surfaces that are in point contact with the ball members  1111   a  and  1131  and intersect each other may implement the corners of a triangular pyramid (tetrahedron). In addition, a triangular pyramid implemented by extending three side surfaces may be an equilateral triangular pyramid. 
     On the other hand, the guide portions  1121   a ,  1121   b ,  1141   a , and  1143   a  may be provided in a shape in which each vertex is cut in a triangular pyramid (tetrahedron) shape. 
     In the triangular pyramid, the incision on the inner apex of the guide portion may form a bottom  10  of the guide portion ( 1121   a ,  1121   b ,  1141   a ,  1143   a ), and the incised portions of the remaining three apexes of the guide portion on the entrance side may form the second surface  23  that does not contact the ball members  1111   a  and  1131 , among the side surfaces. 
     Both the bottom  10  and the second surface  23  are formed by cutting off the vertices of the triangular pyramid, and thus, may all have a triangular shape, and the ball members  1111   a  and  1131  do not contact the bottom  10  and the second surface  23 . In addition, the entrances of the guide portions  1121   a ,  1121   b ,  1141   a , and  1143   a  may have a hexagonal shape because all the vertices are cut from the bottom of the triangular shape of a triangular pyramid (tetrahedron). 
     On the other hand, the bottoms of the guide portions  1121   a ,  1121   b ,  1141   a , and  1143   a  may have a triangular shape. 
     A second coil  1134  is provided on a side surface of the housing  1010 , and a second magnet  1133  facing the second coil  1134  is provided on the rotation holder  1130 . In addition, to detect the rotation position of the rotation holder  1130 , the housing  1010  may be provided with a second position detection sensor  1135  to face the second magnet  1133 . 
     The second magnet  1133  may be magnetized to have an N pole and an S pole in a direction of the second axis A 2  perpendicular to the first axis A 1 , and the rotation holder  1130  may rotate with respect to the carrier  1110  based on the first axis A 1  by interaction between the second magnet  1133  and the second coil  1134 . 
     In this case, the side surface of the housing  1010  on which the second coil  1134  is provided may mean a side surface perpendicular to the optical axis. 
     The rotation holder  1130  may have a rounded end portion in consideration of being provided on the carrier  1110  that rotates. In addition, the second magnet  1133  may be provided on the end of a rounded shape of the rotation holder  1130 , which is an opposite side to the direction in which the reflective member  1150  is installed. Accordingly, the second magnet  1133  may also be provided in a rounded shape. The second magnet  1133  may have an inner end and an outer end in a circular arc shape, and in more detail, the second magnet  1133  has an inner end and an outer end to correspond to an arc shape of a circle centered on the rotating shaft ball  1111   a.    
     On the rotation holder  1130 , a rear yoke  1133   a  may further be provided to maintain or further improve the performance of the second magnet  1133  by focusing magnetism on the rear surface of the second magnet  1133 , for example, between the rotation holder  1130  and the second magnet  1133 . Considering that the second magnet  1133  has a rounded shape, the rear yoke  1133   a  may have a relatively larger shape corresponding to the second magnet  1133 . 
     The second coil  1134  may also be disposed in a position corresponding to the second magnet  1133 . 
     The second coil  1134  may be provided as one or two or more second coils, and the second coil  1134  may be disposed in a rounded shape or a bent shape to correspond to the shape of the second magnet  1133 . For example, the second coil  1134  may be provided in two, and the two coils  1134  may be disposed on both sides to face the second magnet  1133 , and when the second coil  1134  is provided in two, the second coils may be disposed to implement an overall bent shape, for example, a ‘V’ shape. 
     Of course, the second magnet  1133  may be provided as two separate magnets, and may also be disposed to face the two first coils  1134 , respectively. In this case, the second magnet  1133  may have a rounded shape or a linear shape. 
     The second magnet  1133  may be provided at an end that is farthest from the first axis A 1 , which is a rotation axis of the rotation holder  1130 . For example, the second magnet  1133  may be provided on the end of the rounded shape. 
     The second yoke  1132  (second magnetic body) and the fourth magnet  1138  (first magnetic body) serve as a pulling yoke and a pulling magnet, respectively, and may be optionally provided on the rotation holder  1130  or the carrier  1110 . The second yoke  1132  and the fourth magnet  1138  may be respectively provided in one or two or more to face each other in the Y-axis direction. 
     Since the rotation holder  1130  is supported by the carrier  1110  and rotates relative thereto, the second yoke  1132  and the fourth magnet  1138  disposed to face each other may be disposed in positions not to interfere with the rotation of the rotation holder  1130 . 
     Accordingly, in this embodiment, the second yoke  1132  and the fourth magnet  1138  are very close to the rotating shaft A 1  and respectively two thereof may be provided below the first axis A 1 , to sufficiently exert pulling force and not to interfere with the rotation of the rotation holder  1130  as much as possible. Accordingly, the first axis A 1 , the second yoke  1132 , and the fourth magnet  1138  may be aligned in the Y-axis direction, and may be provided on approximately the same position in the optical axis (Z-axis) direction (see  FIG.  21   ). 
     The second position detection sensor  1135  for detecting the position of the rotation holder  1130  may be disposed to face the second magnet  1133 . The second position detection sensor  1135  may be a Hall sensor. The second position detection sensor  1135  may be provided in one or two or more for more accurate position detection of the rotation holder  1130 . 
     The second position detecting sensor  1135  may be provided vertically between the two second coils  1134 . 
     On the other hand, the carrier  1110  may be provided with two first support portions  1141  protruding on both sides in the X-axis direction, and the rotation holder  1130  may be provided with two second support portions  1143  mounted on the first support portions  1141 , on both sides in the X-axial direction. 
     In this case, the first support portion  1141  may have an open upper portion, and a structure in which the second support portion  1143  is fitted to the first support portion  1141  from the top to the lower portion may be provided. 
     In addition, the carrier  1110  may further include a first auxiliary member  1160  covering the open upper portion of the first support portion  1141 . Since the second support portion  1143  rotates, the first auxiliary member  1160  may not be in close contact with the second support portion  1143  and may have a slight gap therewith, so as not to interfere with the rotation of the second support portion  1143 . 
     The first auxiliary member  1160  may serve as a stopper that prevents the rotation holder  1130  from being separated from the carrier  1110  or a buffer member that absorbs the shock when the second support portion  1143  collides with other parts due to displacement. 
     When the second support portion  1143  is coupled to the first support portion  1141 , the first auxiliary member  1160  may be fitted into the carrier  1110  through the side surface to cover the second support portion  1143  from the top. Accordingly, a slit-shaped coupling hole  1142  may be provided in the carrier  1110  such that the first auxiliary member  1160  is inserted. 
     The first auxiliary member  1160  may be provided with a bent portion  1163  for preventing a separation thereof on an end of a body  1161  having a E′ shape for firmed coupling. In addition, the body  1161  may include a fixed portion  1161   a  of which a portion is fitted to the carrier  1110 , and a damping portion  1161   b  disposed on the second support portion  1143  and coupled to a damping member  1165 . 
     The damping member  1165  has a damping protrusion  1165   a  protruding toward the second support portion  1143 , and the damping protrusion  1165   a  may be provided to face the second ball member  1131  provided on the second support portion  1143 . The structure of the damping protrusion  1165   a  may efficiently perform a buffering or stopping role of the rotation holder  1130 . 
     In addition, the damping member  1165  may further include a buffer protrusion  1165   b  protruding toward the cover  1030 . 
     Further, in the present embodiment, when the rotation holder  1130  is separated from the carrier  1110 , the end of the rotation holder  1130 , for example, the upper portion of the rounded portion on which the second magnet  1133  is installed may also collide with an inner wall of the cover  1030 . 
     Accordingly, in the present embodiment, a second auxiliary member  1040  may be provided to prevent the end of the rotation holder  1130  from colliding with the cover  1030  or to absorb an impact. 
     The second auxiliary member  1040  may be provided in a E shape such that an end portion thereof may be fitted to the side surface of the housing  1010  to be fixed. In addition, the second auxiliary member  1040  may be provided with a buffer member  1043  that is further provided between the second auxiliary member and the rotation holder  1130  or the cover  1030  to facilitate shock absorption. 
     The second ball member  1131  may be provided between the first support portion  1141  and the second support portion  1143 . In addition, the two second ball members  1131  provided on both sides may form a first axis A 1  that is formed as a connection line therebetween which is in parallel with the X-axis direction while being the rotation axis of the rotation holder  1130 . 
       FIG.  21    is a reference diagram for explaining a positional relationship between two axes in which a reflection module rotates in a camera module, according to one or more examples. 
     Referring to  FIG.  21   , the reflection module  1100  according to one or more examples may be provided in such a manner that the reflective member  1150  rotates about two axes. 
     The carrier  1110  provided in the housing  1010  may rotate based on the first axis A 1  formed by the rotating shaft ball  1111   a , and the rotation holder  1130  provided in the carrier  1110  may rotate based on the second axis A 2  formed by the second ball member  1131 . 
     Accordingly, the reflective member  1150  provided in the rotation holder  1130  may rotate based on the first axis A 1  and the second axis A 2 . In the illustration of  FIG.  21   , a portion illustrated by a dotted line includes the rotation holder  1130 , and the rotation holder  1130  may rotate with respect to the first axis A 1 . In addition, a portion illustrated by a solid line includes the carrier  1110 , and the carrier  1110  may rotate based on the second axis A 2 . 
     The first axis A 1  and the second axis A 2  intersect each other, and the rotating shaft ball  1111   a  forming the second axis A 2  and the two ball members  1131  forming the first axis A 1  may be disposed on a plane on which both the first axis A 1  and the second axis A 2  are provided. In detail, when viewed in the direction in which light is incident, for example, in the direction of the second axis A 2 , the rotation axis ball  1111   a  and the two ball members  1131  may be aligned in the direction of the first axis A 1  perpendicular to the optical axis. 
     In the reflection module  1100  according to the present embodiment, the intersection of the first axis A 1  and the second axis A 2  may be formed at approximately the center of the mounting surface  1136  on which the reflective member  1150  is mounted. For example, the first axis A 1  may be formed along the mounting surface  1136  in a direction parallel to the X-axis direction, and the second axis A 2  may be provided to penetrate approximately through the center of the mounting surface  1136 . 
     The reflective member  1150  is mounted on the mounting surface  1136 , and the approximately center of the mounting surface  1136  may substantially correspond to the center of the reflective surface. Therefore, when the intersection point of the first axis A 1  and the second axis A 2  is formed at approximately the center of the mounting surface  1136 , the actual rotation amount of the rotation holder  1130  approximately matches the rotation amount of the reflective surface, for example, the mounting surface  1136 , and thus, controlling shake correction or tracking may be relatively very easy. 
       FIGS.  22 A and  22 B  are views for explaining a shape of an opening of a cover (cover member) in a camera module, according to one or more examples. 
     The cover  1030  of the present embodiment includes an opening  1031  through which light is incident, and the opening  1031  may be provided in a substantially hexagonal shape. 
     The carrier  1110  of the reflection module  1100  rotates based on a second axis A 2  parallel to the direction (Y-axis direction) in which light is incident on the camera module  1000 , and the rotation angle thereof is approximately ±25 degrees as a relatively very large degree. 
     Therefore, the opening  1031  is provided in a substantially hexagonal shape to sufficiently receive the incident light while reducing the incidence of unnecessary light. 
     For example, when the carrier  1110  rotates about the second axis A 2  with respect to the housing  1010 , the reflective member  1150  rotates, and the angle may change slightly in a state in which the edge portion is aligned in parallel with the optical axis direction (Z axis direction). Accordingly, in consideration of a maximum rotation angle of the reflective member  1150 , a side of the entrance hole positioned in the lateral direction of the housing  1010  may be formed substantially parallel to the edge of the reflective member  1150 . 
       FIG.  22 A  illustrates a shape when the reflective member  1150  is rotated at a maximum in a clockwise direction with respect to the second axis A 2 , and  FIG.  22 B  illustrates a shape in which the reflective member  1150  is rotated at a maximum counterclockwise with respect to the second axis A 2 . 
       FIG.  23    is a perspective view of an integrated substrate installed in the camera module, according to one or more examples, and  FIG.  24    is a perspective view illustrating a state in which the integrated substrate is installed in the housing of the camera module, according to one or more examples. 
     The main substrate  1070  according one or more examples may be provided integrally. Further, the main substrate  1070  may be provided with coils  1114  and  1134  for driving the reflection module  1100  of the first and second driving units, and a plurality of coils  1241   b  and  1243   b  for driving the lens module  1200  of the third driving unit, which may be mounted on an inner surface of the main substrate. In addition, components (not illustrated) such as active devices and various passive devices, gyro sensors (not illustrated), and the like may be mounted on the outer surface of the main substrate. Accordingly, the main substrate  1070  may be a double-sided substrate. 
     In addition, the main substrate  1070  may be coupled to the housing  1010 . Since the integrally provided main substrate  1070  is coupled to the housing  1010  in the state in which all the coils of the driving unit are mounted on the main substrate  1070 , assembly may be relatively easy. 
       FIG.  25    is a reference diagram illustrating two lens barrels of a camera module according to one or more other examples, and  FIG.  26    is a reference diagram illustrating three lens barrels of a camera module according to one or more still other examples. 
     Referring to  FIG.  25   , a camera module  1001  according to one or more other examples may include a reflection module  1100  and a lens module  1201 . 
     In addition, the lens module  1201  may include two or more lens holders  1221  and  1223  to implement an improved autofocusing or zoom function. 
     The two or more lens holders  1221  and  1223  may respectively move in the direction of the optical axis (Z axis), and may be individually controlled. 
     When the camera module  1001  includes two or more lens holders  1221  and  1223 , one thereof may be used for autofocusing, and the remaining or all lens holders may be used to implement the zoom function. Therefore, further improved autofocusing or zoom function may be implemented. 
     Referring to  FIG.  26   , a camera module  1002  according to one or more still other examples may include a reflection module  1100  and a lens module  1202 . 
     In addition, the lens module  1202  may include three or more lens holders  1231 ,  1233  and  1235  to implement an improved autofocusing or zoom function. 
     Any one of the three or more lens holders  1231 ,  1233  and  1235 , for example, the lens holder  1231  provided closest to the reflection module  1100 , has a fixed position, and the remaining two or more lens holders  1233  and  1235  may respectively move in the direction of the optical axis (Z axis), and may be individually controlled. 
     The camera module  1002  may be provided in such a manner that a portion  1231  of the lenses aligned in the optical axis direction is fixed, and two or more remaining lens holders  1233  and  1235  may move in the optical axis direction. 
     When a portion of the plurality of lenses is additionally provided as a fixed lens, a further improved optical effect may be implemented. In addition, since any one of the movable lens holders may be used for autofocusing, and the remaining or all lens holders may be used to implement the zoom function, further improved autofocusing or zoom function may be implemented. 
     Through these examples, the camera module and the portable electronic device including the camera module according to one or more examples may implement functions such as autofocusing, zoom, shake correction, PIP, tracking, etc., while the structure is relatively simple and the driving may be significantly easy. 
     As set forth above, according to one or more examples, shaking may be easily corrected in not only imaging a fixed subject but also in capturing video of a moving subject. 
     In addition, a folded module (a camera module) capable of tracking a moving subject and a portable electronic device including the same may be provided. 
     While specific examples have been shown and described above, it will be apparent after an understanding of this disclosure that various changes in form and details may be made in these examples without departing from the spirit and scope of the claims and their equivalents. The examples described herein are to be considered in a descriptive sense only, and not for purposes of limitation. Descriptions of features or aspects in each example are to be considered as being applicable to similar features or aspects in other examples. Suitable results may be achieved if the described techniques are performed in a different order, and/or if components in a described system, architecture, device, or circuit are combined in a different manner, and/or replaced or supplemented by other components or their equivalents. Therefore, the scope of the disclosure is defined not by the detailed description, but by the claims and their equivalents, and all variations within the scope of the claims and their equivalents are to be construed as being included in the disclosure.