Patent Publication Number: US-11662546-B2

Title: Lens driving unit, and a camera module and an optical appliance including the same

Description:
CROSS-REFERENCE TO RELATED APPLICATIONS 
     This application is a continuation of U.S. application Ser. No. 17/138,163, filed Dec. 30, 2020; which is a continuation of U.S. application Ser. No. 16/668,931, filed Oct. 30, 2019, now U.S. Pat. No. 10,908,382, issued Feb. 2, 2021; which is a continuation of U.S. application Ser. No. 16/110,736, filed Aug. 23, 2018, now U.S. Pat. No. 10,502,923, issued Dec. 10, 2019; which is a continuation of U.S. application Ser. No. 15/271,955, filed Sep. 21, 2016, now U.S. Pat. No. 10,082,638, issued Sep. 25, 2018; which claims the benefit under 35 U.S.C. § 119 of Korean Patent Application Nos. 10-2015-0133180, filed Sep. 21, 2015; 10-2015-0135403, filed Sep. 24, 2015; and 10-2015-0135404, filed Sep. 24, 2015, which are hereby incorporated by reference in their entirety. 
    
    
     TECHNICAL FIELD 
     Embodiments relate to a lens driving unit, a camera module, and an optical appliance. 
     BACKGROUND 
     The following disclosure merely provides background information related to the embodiments and does not describe the related art. 
     As various kinds of portable terminals have become widely generalized and popularized and wireless Internet service is commercialized, consumer demand related to portable terminals has been diversified, and therefore various kinds of additional devices have been mounted to portable terminals. 
     A representative one of these additional devices is a camera module that captures a still or moving image of an object. 
     Recent camera modules include an Optical Image Stabilization (OIS) actuator for a hand tremor compensation function, and there is need for a reduced height of the entire module and a simplified manufacturing process thereof. 
     Conventional camera modules have a high price and a large number of manufacturing processes due to the great number of elements thereof, and an increase in process management points upon the manufacture of a product results in increased manufacturing costs and an increased height of the entire product. 
     In addition, because a printed circuit board and a circuit member have different sizes, the printed circuit board may be warped when the circuit member is assembled to one surface of the printed circuit board, which deteriorates the quality of the camera module. 
     In addition, a gap may be generated between a pad unit provided on one surface of the printed circuit board and a base to which the printed circuit board is assembled, thus causing contact failure. 
     In addition, when only the pad unit is provided on one surface of the printed circuit board, a portion of a pad may be separated from the printed circuit board during soldering, which causes deterioration in the quality of the camera module. 
     In addition, the printed circuit board may be provided on one surface of the base and the circuit member may be provided on one surface of the printed circuit board. When the base, the printed circuit board, and the circuit member are sequentially assembled with one another, the circuit member does not come into contact with the base, which may make the height of the circuit member uneven. 
     In addition, when a pattern, which protrudes from the pad provided on one surface of the printed circuit board, is thin, the pad may be cracked by an external shock. 
     The circuit member may be assembled so as to be disposed on the upper surface of the printed circuit board. 
     In the process of assembling the circuit member so as to be disposed on the top of the printed circuit board, the circuit member may be slightly tilted. 
     When the circuit member is tilted, rather than being evenly disposed on the upper surface of the printed circuit board, the resolution of the camera module may be deteriorated. 
     In addition, because a conventional lens driving apparatus is configured such that the circuit member and the printed circuit board are assembled with each other, rather than integrally forming the circuit member and the printed circuit board, a foreign substance may be introduced between the circuit member and the printed circuit board, thus causing deterioration in the resolution of the camera module. 
     BRIEF SUMMARY 
     Embodiments provide a lens driving unit, which achieves a reduction in the number of elements, the number of processes, the number of process management points, and the height of an entire product. 
     In addition, embodiments provide a camera module and an optical appliance, each of which includes a lens driving unit. 
     In addition, embodiments provide a lens driving apparatus and a camera module including the same, which may inhibit deterioration in the quality of the camera module due to warping of a printed circuit board, which is caused when a circuit member is assembled to one surface of the printed circuit board because the printed circuit board and the circuit member have different sizes. 
     In addition, embodiments provide a lens driving apparatus and a camera module including the same, which may inhibit contact failure due to a gap between a pad unit provided on one surface of a printed circuit board and a base to which the printed circuit board is assembled. 
     In addition, embodiments provide a lens driving apparatus and a camera module including the same, which may inhibit deterioration in the quality of the camera module due to the separation of a portion of a pad from a printed circuit board during soldering in the case where only a pad unit is provided on one surface of the printed circuit board. 
     In addition, embodiments provide a lens driving apparatus and a camera module including the same, which may inhibit a circuit member from having an irregular height because it does not come into contact with a base when the circuit member, the base, and a printed circuit board are sequentially assembled with one another so that the printed circuit board is provided on one surface of the base and the circuit member is provided on one surface of the printed circuit board. 
     In addition, embodiments provide a lens driving apparatus and a camera module including the same, which may inhibit a pattern, which protrudes from a pad provided on one surface of a printed circuit board, from being cracked by an external shock when the pattern is thin. 
     In addition, embodiments provide a lens driving apparatus and a camera module including the same, which may inhibit a circuit member from being slightly tilted in the process of assembling the circuit member so as to be disposed on the top of a printed circuit board. 
     In addition, embodiments provide a lens driving apparatus and a camera module including the same, which may inhibit deterioration in the resolution of the camera module when a circuit member is tilted, rather than being evenly disposed on the upper surface of a printed circuit board. 
     In addition, embodiments provide a lens driving apparatus and a camera module including the same, which may inhibit deterioration in the resolution of the camera module due to the introduction of a foreign substance between a circuit member and a printed circuit board because the circuit member and the printed circuit board are assembled with each other, rather than being integrally formed with each other. 
     In one embodiment, a lens driving unit includes a base, a housing supported so as to be movable relative to the base, a magnet located on the housing, a pattern coil part including a pattern coil that is located opposite the magnet, the pattern coil part being located on the base, and a sensor part mounted to the pattern coil part for sensing a position or movement of the housing, wherein the pattern coil part includes a first layer and a second layer stacked on the first layer, the sensor part being mounted underneath the first layer, and the pattern coil being formed on the second layer. 
     The pattern coil part may include a body provided with the pattern coil, and a terminal portion bent from the body so as to extend downward. 
     The sensor part may be located so as not to overlap the pattern coil in an optical-axis direction. 
     The body may include a through-hole formed in a center thereof, the pattern coil may include first to fourth coil pieces located around the through-hole, the first coil piece and the third coil piece may be located opposite each other, and the second coil piece and the fourth coil piece may be located opposite each other. The first coil piece and the second coil piece may have the same shape, and the third coil piece and the fourth coil piece may have the same shape. The first coil piece and the third coil piece may have different shapes. 
     The sensor part may be located so as to overlap the pattern coil in an optical-axis direction, and the pattern coil part may further include a third layer located between the first layer and the second layer. 
     The base or the body may support the housing from a bottom side thereof so that the housing is horizontally moved or tilted. 
     The lens driving unit may further include a lateral support member coupled at one end thereof to the housing, and the lateral support member may have a remaining end coupled to the body. 
     The lateral support member may include a wire, and the body may include a coupling hole for penetration of the wire, and an electrical conduction portion formed on a lower surface of the body so as to come into contact with the coupling hole. 
     The base may include a sensor part accommodation recess formed in an upper surface thereof for accommodating therein the sensor part. 
     The sensor part may include a hall sensor for sensing magnetic force of the magnet, and the hall sensor may be mounted to the pattern coil part via a Surface Mount Technology (SMT). 
     The lens driving unit may further include a bobbin located inside the housing, a coil located on the bobbin so as to be opposite the magnet, and an upper support member and a lower support member that are coupled to the bobbin and the housing for supporting the bobbin so as to be movable relative to the housing. 
     The upper support member may be divided into six upper electrical conduction parts, and the lower support member may be divided into two lower electrical conduction parts. Four electrical conduction parts among the six upper electrical conduction parts may conduct electricity together with an auto-focusing feedback sensor located on the bobbin, and two remaining electrical conduction parts among the six upper electrical conduction parts may be connected to the two lower electrical conduction parts via an electrical conduction member so as to conduct electricity together with the coil located on the bobbin. 
     The lens driving unit may further include a cover member for accommodating therein the housing, the cover member having a lower end coupled to the base, and the cover member may include a cutaway portion for exposing the terminal portion to an outside. 
     The terminal portion may be accommodated in a terminal accommodation portion formed in a portion of a side surface of the base. 
     The terminal portion may be located on each of opposite lateral sides of the body. 
     In another embodiment, a camera module includes a base, a housing supported so as to be movable relative to the base, a magnet located on the housing, a pattern coil part including a pattern coil that is located opposite the magnet, the pattern coil part being located on the base, and a sensor part mounted to the pattern coil part for sensing a position or movement of the housing, wherein the pattern coil part includes a first layer and a second layer stacked on the first layer, the sensor part being mounted underneath the first layer, and the pattern coil being formed on the second layer. 
     In another embodiment, an optical appliance includes a main body, a display unit disposed on one surface of the main body for displaying information, and a camera module installed to the main body for capturing an image or photograph, wherein the camera module includes a base, a housing supported so as to be movable relative to the base, a magnet located on the housing, a pattern coil part including a pattern coil that is located opposite the magnet, the pattern coil part being located on the base, and a sensor part mounted to the pattern coil part for sensing a position or movement of the housing, wherein the pattern coil part includes a first layer and a second layer stacked on the first layer, the sensor part being mounted underneath the first layer, and the pattern coil being formed on the second layer. 
     In another embodiment, a lens driving apparatus includes a first lens driving unit including a bobbin provided with at least one lens sheet therein and a first coil on an outer circumferential surface thereof, a first magnet located around the bobbin so as to be opposite the first coil, a housing for supporting the first magnet, and upper and lower elastic members that are coupled to the bobbin and the housing, the first lens driving unit moving the bobbin in a first direction, which is parallel to an optical axis, via interaction between the first magnet and the first coil, and a second lens driving unit including a base spaced apart from the first lens driving unit by a predetermined distance, a plurality of support members for supporting the housing so as to be movable relative to the base in second and third directions, which are orthogonal to the first direction, a second coil located so as to be opposite the first magnet, and a printed circuit board disposed on one surface of the base via an adhesive member, the second lens driving unit moving the housing in the second and third directions via interaction between the first magnet and the second coil, wherein the printed circuit board includes a plurality of terminals provided on one surface thereof, and a coating member for covering a portion of opposite side surfaces of each of the terminals. 
     The terminals may be spaced apart from one another by a first length on the surface of the printed circuit board. 
     The first length may range from 0.01 μm to 0.45 μm. 
     The coating member may be integrally provided on one surface of two or more of the terminals. 
     The terminals may include first terminals located on opposite ends of the printed circuit board, and a second terminal located between the first terminals. 
     The coating member may be provided to cover one side surface of each first terminal and opposite side surfaces of the second terminal. 
     The coating member may be formed of a Photo Solder Resist (PSR) or cover layer material. 
     The printed circuit board may have a hollow shape and may include at least one protruding hollowed portion, which protrudes radially outward from a center of the printed circuit board. 
     The lens driving apparatus may further include a circuit member having the second coil, and the circuit member may have the same diagonal length in the first direction as the diagonal length of the printed circuit board in the first direction. 
     The circuit member may have the same diagonal length in the second direction, which crosses the first direction, as the diagonal length of the printed circuit board in the second direction. 
     In another embodiment, a camera module includes a lens driving apparatus, the lens driving apparatus including a first lens driving unit including a bobbin provided with at least one lens sheet therein and a first coil on an outer circumferential surface thereof, a first magnet located around the bobbin so as to be opposite the first coil, a housing for supporting the first magnet, and upper and lower elastic members that are coupled to the bobbin and the housing, the first lens driving unit moving the bobbin in a first direction, which is parallel to an optical axis, via interaction between the first magnet and the first coil, and a second lens driving unit including a base spaced apart from the first lens driving unit by a predetermined distance, a plurality of support members for supporting the housing so as to be movable relative to the base in second and third directions, which are orthogonal to the first direction, a second coil located so as to be opposite the first magnet, and a printed circuit board disposed on one surface of the base via an adhesive member, the second lens driving unit moving the housing in the second and third directions via interaction between the first magnet and the second coil, wherein the printed circuit board includes a plurality of terminals provided on one surface thereof, and a coating member for covering a portion of opposite side surfaces of each of the terminals, an image sensor, and a circuit board on which the image sensor is mounted. 
     The terminal may have a thickness of 400 μm or more. 
     The printed circuit board may have a hollow shape and may include at least one protruding hollowed portion, which protrudes radially outward from a center of the printed circuit board. 
     The lens driving apparatus may further include a circuit member having the second coil, and the circuit member may have the same diagonal length in the first direction as the diagonal length of the printed circuit board in the first direction. 
     The coating member may be formed of a Photo Solder Resist (PSR) or cover layer material. 
     The coating member may be provided to cover a portion of an upper surface of each terminal. 
     In another embodiment, a lens driving apparatus includes a first lens driving unit including a bobbin provided with at least one lens sheet therein and a first coil on an outer circumferential surface thereof, a first magnet located around the bobbin so as to be opposite the first coil, a housing for supporting the first magnet, and upper and lower elastic members that are coupled to the bobbin and the housing, the first lens driving unit moving the bobbin in a first direction that follows an optical axis via interaction between the first magnet and the first coil, and a second lens driving unit including a base spaced apart from the first lens driving unit by a predetermined distance, a plurality of support members for supporting the housing so as to be movable relative to the base in second and third directions, which are orthogonal to the first direction, a second coil located so as to be opposite the first magnet, and a circuit member disposed on one surface of the base via an adhesive member, the second lens driving unit moving the housing in the second and third directions via interaction between the first magnet and the second coil, wherein the circuit member includes a first circuit board unit including at least one pattern for electrically connecting the circuit member and a controller to each other, a second circuit board unit disposed on a top of the first circuit board unit, and a third circuit board unit disposed on a bottom of the first circuit board unit, and wherein each of the first circuit board unit, the second circuit board unit, and the third circuit board unit includes the second coil, such that the circuit member and the second coil are integrally formed with each other. 
     The first circuit board unit may include a plurality of circuit boards, and may further include a terminal that is electrically connected to the controller. 
     Each of the second circuit board unit and the third circuit board unit may include at least one circuit board. 
     No second coil may be formed on a lowermost circuit board of the third circuit board unit, and a position sensor may be mounted on a portion corresponding to a position of the second coil. 
     Each of the second coils provided on the first circuit board unit, the second circuit board unit, and the third circuit board unit may be wound to have five turns or more. 
     The circuit member may include at least six circuit boards. 
     One of the six circuit boards may include no second coil, and may include a position sensor on a portion thereof corresponding to a position of the second coil. 
     The circuit boards may be formed of a Flexible Printed Circuit Board (FPCB). 
     In another embodiment, a camera module may include the lens driving apparatus of the above embodiment, the image sensor, and a sensor board on which the image sensor is mounted. 
     In a further embodiment, the lens driving apparatus includes a first lens driving unit including a bobbin provided with at least one lens sheet therein and a first coil on an outer circumferential surface thereof, a first magnet located around the bobbin so as to be opposite the first coil, a housing for supporting the first magnet, and upper and lower elastic members that are coupled to the bobbin and the housing, the first lens driving unit moving the bobbin in a first direction that follows an optical axis via interaction between the first magnet and the first coil, and a second lens driving unit including a base spaced apart from the first lens driving unit by a predetermined distance, a plurality of support members for supporting the housing so as to be movable relative to the base in second and third directions, which are orthogonal to the first direction, a circuit member disposed on one surface of the base via an adhesive member, a circuit board unit disposed on a lower surface of the circuit member, and a second coil wound on the circuit member and/or the circuit board unit, the second lens driving unit moving the housing in the second and third directions via interaction between the first magnet and the second coil, and the circuit board unit and the circuit member being integrally formed with each other. 
     The circuit board unit may include a first circuit board unit including at least one pattern for electrically connecting the circuit board unit and a controller to each other, and a second circuit board unit disposed on the first circuit board unit. 
     The circuit member may include a first circuit member, a second circuit member located below the first circuit member, a third circuit member located below the second circuit member, and a fourth circuit member located below the third circuit member. 
     The circuit board unit may be located between the second circuit member and the third circuit member. 
     No second coil may be wound on at least one of the circuit members. 
    
    
     
       BRIEF DESCRIPTION OF THE DRAWINGS 
       Arrangements and embodiments may be described in detail with reference to the following drawings in which like reference numerals refer to like elements and wherein: 
         FIG.  1    is a perspective view illustrating a lens driving unit according to an embodiment; 
         FIG.  2    is an exploded perspective view of the lens driving unit according to the present embodiment; 
         FIG.  3    is a perspective view illustrating a pattern coil part of the lens driving unit according to the present embodiment; 
         FIG.  4    is a bottom perspective view illustrating the coupling of a second sensor part and the pattern coil part of the lens driving unit according to the present embodiment; 
         FIG.  5    illustrates a perspective view and a partially enlarged view illustrating the coupling of the second sensor part and the pattern coil part of the lens driving unit according to the present embodiment; 
         FIG.  6    is a perspective view illustrating the coupling of a base and the pattern coil part of the lens driving unit according to the present embodiment; 
         FIG.  7    illustrates a base, a printed circuit board, and a second coil according to an embodiment; 
         FIG.  8    illustrates the upper surface of the printed circuit board according to the embodiment; 
         FIG.  9    illustrates the lower surface of the printed circuit board according to the embodiment; 
         FIG.  10    is a detailed view illustrating a third printed-circuit-board portion  250   c  of the printed circuit board according to the embodiment; 
         FIG.  11    illustrates a first terminal and a second terminal according to the embodiment, which are placed on the third printed-circuit-board portion  250   c;    
         FIG.  12    is an exploded view illustrating a printed circuit board and a circuit member including a second coil according to an embodiment; 
         FIG.  13    illustrates a first circuit board according to the embodiment; and 
         FIG.  14    illustrates a second circuit board according to the embodiment. 
     
    
    
     DETAILED DESCRIPTION 
     Hereinafter, some embodiments will be clearly revealed via description thereof with reference to the accompanying drawings. Wherever possible, the same reference numbers will be used throughout the drawings to refer to the same or like parts. In addition, in the following description of the embodiments, a detailed description of known functions and configurations incorporated herein will be omitted when it may impede the understanding of the embodiments. 
     In addition, in the description of constituent elements of the embodiments, terms “first”, “second”, “A”, “B”, “(a)”, “(b)”, and the like may be used to distinguish any one element from another element without requiring or containing any physical or logical relationship or sequence between these substances or elements. When an element is described as being “connected” or “coupled”, to another element, it can be directly connected or coupled to the other element, or intervening elements may also be “connected” or “coupled” therebetween. 
     The expression “optical-axis direction” used below is defined as the optical axis of a lens module, which is coupled to a lens driving unit. Meanwhile, “optical-axis direction” may be replaced with the vertical direction, the Z-axis direction, or the like. 
     The term “auto-focusing function” used below is defined as a function of focusing on an object by moving a lens module in the optical-axis direction so as to adjust the distance to an image sensor depending on the distance to the object, in order to allow the image sensor to acquire a clear image of the object. 
     The term “hand tremor compensation function” used below is defined as a function of moving or tilting a lens module in a direction perpendicular to the optical-axis direction so as to compensate for vibrations (movement) of an image sensor generated by external force. Meanwhile, “hand tremor compensation” may be used along with “Optical Image Stabilization (OIS)”. 
     Hereinafter, the configuration of an optical appliance according to the present embodiment will be described. 
     The optical appliance according to the present embodiment may be, for example, a cellular phone, a smart phone, a portable smart appliance, a digital camera, a laptop computer, a digital broadcasting terminal, a Personal Digital Assistant (PDA), a Portable Multimedia Player (PMP), or a navigation system, without being limited thereto, and may be any one device for capturing an image or a photograph. 
     The optical appliance according to the present exemplary embodiment may include a main body (not illustrated), a display unit (not illustrated) disposed on one surface of the main body for displaying information, and a camera (not illustrated) installed on the main body to capture an image or a photograph, the camera including a camera module (not illustrated). 
     Hereinafter, the configuration of the camera module according to the present embodiment will be described. 
     The camera module may include a lens driving unit  10 , a lens module (not illustrated), an infrared-ray blocking filter (not illustrated), a printed circuit board (not illustrated), an image sensor (not illustrated), and a controller (not illustrated). 
     The lens module may include one or more lenses (not illustrated), and a lens barrel for accommodating the lenses. One constituent element of the lens module is not limited to the lens barrel, and any other holder structure capable of supporting the lenses may be used. The lens module may be coupled to the lens driving unit  10  and may be moved along with the lens driving unit  10 . In one example, the lens module may be coupled inside the lens driving unit  10 . In one example, the lens module may be screwed to the lens driving unit  10 . In another example, the lens module may be coupled to the lens driving unit  10  using an adhesive (not illustrated). Light that has passed through the lens module may be emitted to the image sensor. 
     The infrared-ray blocking filter may inhibit infrared rays from being introduced into the image sensor. In one example, the infrared-ray blocking filter may be located between the lens module and the image sensor. The infrared-ray blocking filter may be located on a holder member (not illustrated), which is provided separately from a base  500 . Alternatively, the infrared-ray blocking filter may be mounted in a through-hole  510 , which is formed in the central portion of the base  500 . The infrared-ray blocking filter may be formed of, for example, a film material or glass material. Alternatively, the infrared-ray blocking filter may be formed by coating an optical filter, which has a flat plate shape and is formed of cover glass for the protection of an image-capturing surface, with an infrared-ray blocking material. 
     The printed circuit board may support the lens driving unit  10 . The image sensor may be mounted on the printed circuit board. In one example, the image sensor may be located on the inner side of the upper surface of the printed circuit board, and a sensor holder (not illustrated) may be located on the outer side of the upper surface of the printed circuit board. The lens driving unit  10  may be located above the sensor holder. Alternatively, the lens driving unit  10  may be located on the outer side of the upper surface of the printed circuit board and the image sensor may be located on the inner side of the upper surface of the printed circuit board. Through this structure, light that has passed through the lens module, which is accommodated inside the lens driving unit  10 , may be emitted to the image sensor mounted on the printed circuit board. The printed circuit board may supply a voltage to the lens driving unit  10 . The controller for controlling the lens driving unit  10  may be located on the printed circuit board. 
     The image sensor may be mounted on the printed circuit board. The image sensor may be located so as to have the same optical axis as the lens module. Thereby, the image sensor may acquire light that has passed through the lens module. The image sensor may output the acquired light as an image. In one example, the image sensor may be a Charge Coupled Device (CCD), a Metal Oxide Semiconductor (MOS), a Charge Priming Device (CPD), or a Charge Injection Device (CID), without being limited thereto. 
     The controller may be mounted on the printed circuit board. The controller may be located at the outer side of the lens driving unit  10 . Alternatively, the controller may be located at the inner side of the lens driving unit  10 . The controller may control, for example, the direction, intensity and pulse width of the current supplied to each constituent element of the lens driving unit  10 . The controller may perform the auto-focusing function and/or the hand tremor compensation function of the camera module by controlling the lens driving unit  10 . That is, the controller may move the lens module in the optical-axis direction or in a direction perpendicular to the optical-axis direction, or may tilt the lens module by controlling the lens driving unit  10 . In addition, the controller may perform the feedback control of the auto-focusing function and/or the hand tremor compensation function. More specifically, the controller may control the voltage or current that is to be applied to a first drive part  220  or a pattern coil  410  based on the position of a bobbin  210  or a housing  310 , which is sensed by a sensor part  700 . 
     Hereinafter, the configuration of the lens driving unit  10  according to the present embodiment will be described with reference to the drawings. 
       FIG.  1    is a perspective view illustrating a lens driving unit according to an embodiment,  FIG.  2    is an exploded perspective view of the lens driving unit according to the present embodiment,  FIG.  3    is a perspective view illustrating a pattern coil part of the lens driving unit according to the present embodiment,  FIG.  4    is a bottom perspective view illustrating the coupling of a second sensor part and the pattern coil part of the lens driving unit according to the present embodiment,  FIG.  5    illustrates a perspective view and a partially enlarged view illustrating the coupling of the second sensor part and the pattern coil part of the lens driving unit according to the present embodiment, and  FIG.  6    is a perspective view illustrating the coupling of a base and the pattern coil part of the lens driving unit according to the present embodiment. 
     Referring to  FIGS.  1  to  6   , the lens driving unit  10  according to the present embodiment may include a cover member  100 , a first mover  200 , a second mover  300 , a pattern coil part  400 , a base  500 , a support member  600 , and a sensor part  700 . In the lens driving unit  10  according to the present embodiment, one or more of the cover member  100 , the first mover  200 , the second mover  300 , the pattern coil part  400 , the base  500 , the support member  600 , and the sensor part  700  may be omitted. In particular, the sensor part  700  is used for the auto-focusing feedback function and/or the hand tremor compensation feedback function, and may be omitted. 
     The cover member  100  may define the external appearance of the lens driving unit  10 . The cover member  100  may take the form of a hexahedron, the bottom of which is open, without being limited thereto. The cover member  100  may include an upper plate  101  and a side plate  102  extending downward from the outer periphery of the upper plate  101 . The side plate  102  of the cover member  100  may have a lower end mounted on the base  500 . The cover member  100  and the base  500  may define the space therein for accommodating the first mover  200 , the second mover  300 , the pattern coil part  400 , and the support member  600 . In addition, the cover member  100  may be mounted on the base  500  such that the inner surface thereof comes into close contact with a portion of the side surface or the entire side surface of the base  500 . Through this structure, the cover member  100  may function to protect the elements therein from an external shock and to inhibit the introduction of contaminants. 
     The cover member  100  may be formed of, for example, a metal material. More specifically, the cover member  100  may be formed of a metal panel. In this case, the cover member  100  may inhibit the interference of electric waves. That is, the cover member  100  may inhibit 
     electric waves, generated at the outside of the lens driving unit  10 , from being introduced into the cover member  100 . In addition, the cover member  100  may inhibit electric waves, generated inside the cover member  100 , from being discharged outward from the cover member  100 . Note that the material of the cover member  100  is not limited to the aforementioned one. 
     The cover member  100  may include an opening  110  formed in the upper plate  101  for exposing the lens module. The opening  110  may have a shape corresponding to the lens module. The size of the opening  110  may be larger than the diameter of the lens module in order to allow the lens module to be assembled through the opening  110 . In addition, light introduced through the opening  110  may pass through the lens module. The light that has passed through the lens module may be transferred to the image sensor. 
     The cover member  100  may include a cutaway portion  120  for exposing a terminal portion  430  to the outside. The cutaway portion  120  may be cut away from a lower portion of the cover member  100 . The cutaway portion  120  may expose the terminal portion  430  to the outside and may be spaced apart from the terminal portion  430 . An insulation material may be disposed between the cutaway portion  120  and the terminal portion  430  so as to inhibit electrical conduction between the cover member  100  and the terminal portion  430 . 
     The first mover  200  may be coupled to the lens module, which is one constituent element of the camera module (note that the lens module may be described as a constituent element of the lens driving unit  10 ). The lens module may be located inside the first mover  200 . The outer circumferential surface of the lens module may be coupled to the inner circumferential surface of the first mover  200 . The first mover  200  may be moved along with the lens module via interaction with the second mover  300 . That is, the first mover  200  may move the lens module. 
     The first mover  200  may include a bobbin  210  and a first drive part  220 . The bobbin  210  of the first mover  200  may be coupled to the lens module. The first drive part  220  of the first mover  200  may be located on the bobbin  210  and may be moved by electromagnetic interaction with a second drive part  320 . 
     The bobbin  210  may be coupled to the lens module. More specifically, the outer circumferential surface of the lens module may be coupled to the inner circumferential surface of the bobbin  210 . The first drive part  220  may be coupled to the bobbin  210 . In addition, the bottom of the bobbin  210  may be coupled to a lower support member  620  and the top of the bobbin  210  may be coupled to an upper support member  610 . The bobbin  210  may be located inside the housing  310 . The bobbin  210  may move in the optical-axis direction relative to the housing  310 . 
     The bobbin  210  may include a lens coupling portion  211  formed therein. The lens module may be coupled to the lens coupling portion  211 . The inner circumferential surface of the lens coupling portion  211  may be provided with screw-threads, which correspond to screw-threads formed on the outer circumferential surface of the lens module. That is, the outer circumferential surface of the lens module may be screwed to the inner circumferential surface of the lens coupling portion  211 . Alternatively, an adhesive may be introduced between the lens module and the bobbin  210 . At this time, the adhesive may be Ultraviolet-Light (UV) curable epoxy. That is, the lens module and the bobbin  210  may be attached to each other by UV curable epoxy. Alternatively, the lens module and the bobbin  210  may be attached to each other by thermally curable epoxy. 
     The bobbin  210  may include a first-drive-part coupling portion  212  on which the first drive part  220  is wound or mounted. The first-drive-part coupling portion  212  may be integrally formed with the outer surface of the bobbin  210 . In addition, the first-drive-part coupling portion  212  may be formed throughout the outer surface of the bobbin  210 , or may be formed at predetermined intervals on the outer surface of the bobbin  210 . The first-drive-part coupling portion  212  may include a recess formed in a portion of the outer surface of the bobbin  210 . The first drive part  220  may be located in the recess. At this time, the first drive part  220  may be supported by the first-drive-part coupling portion  212 . 
     In one example, the first-drive-part coupling portion  212  may be formed by protruding portions on the upper and lower sides of the recess. At this time, a coil of the first drive part  220  may be wound in the recessed first-drive-part coupling portion  212 . In another example, the first-drive-part coupling portion  212  may take the form of a recess, the upper or lower side of which is open and the other side of which is provided with a holder portion, such that the coil of the first drive part  220 , which has been previously wound, may be inserted and coupled through the open side. 
     The bobbin  210  may include an upper coupling portion  213  configured to be coupled to the upper support member  610 . The upper coupling portion  213  may be coupled to an inner-side portion  612  of the upper support member  610 . In one example, a protrusion (not illustrated) of the upper coupling portion  213  may be inserted into and coupled to a recess or hole (not illustrated) formed in the inner-side portion  612 . Alternatively, the upper support member  610  may be provided with a protrusion and the bobbin  210  may be provided with a recess or hole for the coupling therebetween. The bobbin  210  may include a lower coupling portion (not illustrated) configured to be coupled to the lower support member  620 . The lower coupling portion formed on the bottom of the bobbin  210  may be coupled to an inner-side portion  622  of the lower support member  620 . In one example, a protrusion (not illustrated) of the lower coupling portion may be inserted into and coupled to a recess or hole (not illustrated) formed in the inner-side portion  622 . Alternatively, the lower support member  620  may be provided with a protrusion and the bobbin  210  may be provided with a recess or hole for the coupling therebetween. 
     The first drive part  220  may be located so as to be opposite the second drive part  320  of the second mover  300 . The first drive part  220  may move the bobbin  210  relative to the housing  310  via electromagnetic interaction with the second drive part  320 . The first drive part  220  may include a coil. The coil may be guided by the first-drive-part coupling portion  212  so as to be wound around the outer surface of the bobbin  210 . In another embodiment, four coils may be independently provided on the outer surface of the bobbin  210  such that two neighboring coils form an angle of 90 degrees therebetween. When the first drive part  220  includes the coil, a voltage may be supplied to the coil through the lower support member  620 . At this time, the lower support member  620  may be divided into a pair of lower support members for the supply of voltage to the coil. The first drive part  220  may include a pair of lead cables (not illustrated) for the supply of voltage. In this case, each of the pair of lead cables of the first drive part  220  may be electrically coupled to each of the pair of lower support members  620 . Alternatively, the first drive part  220  may receive a voltage from the upper support member  610 . When a voltage is supplied to the coil, an electromagnetic field may be formed around the coil. In another embodiment, the first drive part  220  may include a magnet and the second drive part  320  may include a coil. 
     The second mover  300  may be located at the outer side of the first mover  200  so as to be opposite the first mover  200 . The second mover  300  may be supported by the base  500  located therebelow. The second mover  300  may be supported by fixing members. At this time, the fixing members may include the base  500  and the pattern coil part  400 . That is, the second mover  300  may be supported by the base  500  and/or the pattern coil part  400 . The second mover  300  may be located in the space inside the cover member  100 . 
     The second mover  300  may include the housing  310  and the second drive part  320 . The housing  310  of the second mover  300  may be located at the outer side of the bobbin  210 . In addition, the second drive part  320  of the second mover  300  may be located so as to be opposite the first drive part  220  and may be fixed to the housing  310 . 
     At least a portion of the housing  310  may have a shape corresponding to the inner surface of the cover member  100 . In particular, the outer surface of the housing  310  may have a shape corresponding to the inner surface of the side plate  102  of the cover member  100 . The outer surface of the housing  310  and the inner surface of the side plate  102  of the cover member  100  may be flat. More specifically, when the housing  310  is located at the initial position thereof, the outer surface of the housing  310  and the inner surface of the side plate  102  of the cover member  100  may be parallel to each other. In this case, when the housing  310  is moved closest to the cover member  100 , the outer surface of the housing  310  and the inner surface of the side plate  102  of the cover member  100  may come into surface contact with each other, which may disperse a shock generated in the housing  310  and/or the cover member  100 . The housing  310  may take the form of, for example, a hexahedron having four sides. Note that the housing  310  may have any other shape so long as it can be located inside the cover member  100 . 
     The housing  310  may be formed of an insulation material and may be injection-molded in consideration of productivity. Because the housing  310  is moved for Optical Image Stabilization (OIS) driving, the housing  310  may be spaced apart from the cover member  100  by a predetermined distance. However, in an Auto-Focusing (AF) model, the housing  310  may be fixed on the base  500 . Alternatively, in the AF model, the housing  310  may be omitted and a magnet, which is provided as the second drive part  320 , may be fixed to the cover member  100 . 
     The housing  310  may have open upper and lower sides and may accommodate the first mover  200  in a vertically movable manner. The housing  310  may include an inner space  311 , the upper and lower sides of which are open. The bobbin  210  may be movably located in the inner space  311 . That is, the inner space  311  may have a shape corresponding to the bobbin  210 . In addition, the inner circumferential surface of the housing  310 , which defines the inner space  311 , may be spaced apart from the outer circumferential surface of the bobbin  210 . The housing  310  may be supported so as to be movable relative to the base  500 . That is, the housing  310  may be horizontally moved or tilted relative to the base  500 . 
     The housing  310  may include a second-drive-part coupling portion  312  formed on the side surface thereof so as to have a shape corresponding to the second drive part  320  for accommodating the second drive part  320 . That is, the second-drive-part coupling portion  312  may accommodate and fix the second drive part  320 . The second drive part  320  may be fixed to the second-drive-part coupling portion  312  using an adhesive (not illustrated). The second-drive-part coupling portion  312  may be located on the inner circumferential surface of the housing  310 . This may be advantageous for the electromagnetic interaction between the second drive part  320  and the first drive part  220  located therein. The second-drive-part coupling portion  312  may have, for example, the open bottom side. This may be advantageous for the electromagnetic interaction between the second drive part  320  and a body  420  located below the second drive part  320 . In one example, the lower end of the second drive part  320  may protrude downward from the lower end of the housing  310 . For example, four second-drive-part coupling portions  312  may be provided. The second drive part  320  may be coupled to each of the four second-drive-part coupling portions  312 . 
     The housing  310  may be coupled at the top thereof to the upper support member  610  and may be coupled at the bottom thereof to the lower support member  620 . The housing  310  may include an upper coupling portion  313  configured to be coupled to the upper support member  610 . The upper coupling portion  313  may be coupled to an outer-side portion  611  of the upper support member  610 . In one example, a protrusion of the upper coupling portion  313  may be inserted into and coupled to a recess or hole (not illustrated) in the outer-side portion  611 . In an alternative embodiment, the upper support member  610  may be provided with a protrusion and the housing  310  may be provided with a recess or hole for the coupling therebetween. The housing  310  may further include a lower coupling portion (not illustrated) configured to be coupled to the lower support member  620 . The lower coupling portion formed on the bottom of the housing  310  may be coupled to an outer-side portion  621  of the lower support member  620 . In one example, the protrusion of the lower coupling portion may be inserted into and coupled to a recess or hole (not illustrated) in the outer-side portion  621 . In an alternative embodiment, the lower support member  620  may be provided with a protrusion and the housing  310  may be provided with a recess or hole for the coupling therebetween. 
     The housing  310  may include a first side surface, a second side surface located near the first side surface, and a corner portion located between the first side surface and the second side surface. The corner portion of the housing  310  may be provided with an upper stopper (not illustrated). The upper stopper may vertically overlap the cover member  100 . When the housing  310  is moved upward by an external shock, the upper stopper may limit the upward movement of the housing  310  by coming into contact with the cover member  100 . 
     The second drive part  320  may be located so as to be opposite the first drive part  220  of the first mover  200 . The second drive part  320  may move the first drive part  220  via electromagnetic interaction with the first drive part  220 . The second drive part  320  may include a magnet. The magnet may be fixed to the second-drive-part coupling portion  312  of the housing  310 . In one example, as illustrated in  FIG.  2   , four magnets may be independently provided on the housing  310  such that the two neighboring magnets form an angle of 90 degrees therebetween. That is, four second drive parts  320  may be equidistantly mounted on four side surfaces of the housing  310 , which may contribute to the efficient use of the inner volume. In addition, the second drive parts  320  may be attached to the housing  310  using an adhesive, without being limited thereto. Alternatively, the first drive part  200  may include a magnet and the second drive part  320  may include a coil. 
     The pattern coil part  400  may be located on the base  500 . The pattern coil part  400  may be located so as to be opposite the bottom of the second mover  300 . The pattern coil part  400  may movably support the second mover  300 . The pattern coil part  400  may move the second mover  300 . The pattern coil part  400  may be centrally provided with a through-hole  421 , which corresponds to the lens module. In the present embodiment, because the pattern coil part  400  may be provided with the terminal portion  430  to enable direct electrical conduction with the outside, a separate Flexible Printed Circuit Board (FPCB) may not be provided. Accordingly, the present embodiment may achieve a reduction in price attributable to a reduction in the number of elements, processes, and process management points, compared to a model in which an FPCB and a pattern coil are separately provided. In addition, the overall height of the product is reduced, which may contribute to a reduction in size. 
     The pattern coil part  400  may include a lower first layer and a second layer stacked on the first layer, a second sensor part  720  being mounted underneath the first layer, and the pattern coil  410  being formed on the second layer. At this time, each of the first layer and the second layer may include a single conductive layer. In one example, when the pattern coil part  400  includes only two layers, i.e. the first layer and the second layer, the second sensor part  720  and the pattern coil  410  may not vertically overlap each other. The pattern coil part  400  may further include a third layer interposed between the first layer and the second layer. That is, the pattern coil part  400  may include three or more layers. In other words, the pattern coil part  400  may include three or more conductive layers. In this case, the second sensor part  720  and the pattern coil  410  may vertically overlap each other. 
     The pattern coil part  400  may include, for example, the pattern coil  410  and the body  420 . The pattern coil part  400  may include the pattern coil  410  disposed on the body  420 . In addition, the body  420  of the pattern coil part  400  may be located so as to be opposite the bottom of the second drive part  320  and may be seated on the base  500 . The pattern coil part  400  may include the pattern coil  410 , the body  420  provided with the pattern coil  410 , and the terminal portion  430  bent from the body  420  so as to extend downward. 
     The pattern coil  410  may be opposite the second drive part  320 . The pattern coil  410  may move the second drive part  320  via electromagnetic interaction therebetween. When a voltage is applied to the pattern coil  410 , the second drive part  320  and the housing  310 , to which the second drive part  320  is fixed, may be integrally moved via interaction between the pattern coil  410  and the second drive part  320 . The pattern coil  410  may be mounted on or electrically connected to the body  420 , or may be integrally formed with the body  420 . The pattern coil  420  may be, for example, a Fine Pattern (FP) coil and may be placed, mounted or formed on the body  420 . The pattern coil  410  may be formed, for example, so as to minimize interference with the second sensor part  720  located therebelow. The pattern coil  410  may be formed so as not to vertically overlap the second sensor part  720 . The second sensor part  720  may be mounted below the pattern coil part  400  so as not to vertically overlap the pattern coil  410 . In addition, the pattern coil  410  may have an asymmetrical shape. 
     The pattern coil  410  may include first to fourth coil pieces  411 ,  412 ,  413  and  414  arranged around the through-hole  421 . The first coil piece  411  and the third coil piece  413  may be opposite each other, and the second coil piece  412  and the fourth coil piece  414  may be opposite each other. The first coil piece  411  may be near the second coil piece  412  and the fourth coil piece  414 , and the third coil piece  413  may be near the fourth coil piece  414  and the second coil piece  412 . That is, the first coil piece  411  to the fourth coil piece  414  may be successively arranged in the clockwise or counterclockwise direction. The first coil piece  411  and the second coil piece  412  may have a corresponding shape, and the third coil piece  413  and the fourth coil piece  414  may have a corresponding shape. Note that the shapes of the first coil piece  411  and the third coil piece  413  may not correspond to each other. Through the change in the shape of the first coil piece  411  to the fourth coil piece  414 , the space for the mounting of the second sensor part  720  may be attained. The second sensor part  720  may be located so as not to vertically overlap the first coil piece  411  to the fourth coil piece  414 . Two second sensor parts  720  may be provided. At this time, imaginary lines that connect the two second sensor parts  720  to the optical axis, may be perpendicular to each other. When the second sensor parts  720  do not vertically overlap the first coil piece  411  to the fourth coil piece  414 , the body  420  may include only two layers (conductive layers), which is advantageous. 
     In another embodiment, the first coil piece  411  to the fourth coil piece  414  may vertically overlap the second sensor parts  720 . In this case, the body  420  may include three or more layers (conductive layers). This is because the body  420  that includes only two layers, as in the above example, may cause failure in electrical conduction between the second sensor parts  720  and the pattern coil  410 , which overlap each other in the optical-axis direction. 
     The body  420  may be seated on the base  500 . The body  420  may supply a voltage to the pattern coil  410 . In addition, the body  420  may supply a voltage to the first drive part  220  or the second drive part  320 . In one example, the body  420  may supply a voltage to the first drive part  220  through a lateral support member  630 , the upper support member  610 , an electrical conduction member  640 , and the lower support member  620 . Alternatively, the body  420  may supply a voltage to the first drive part  220  through the lateral support member  630  and the upper support member  610 . 
     The body  420  may support the housing  310  from the bottom side thereof so that the housing  310  is horizontally moved or tilted. The body  420  may be coupled to the housing  310  via the lateral support member  630 . The second sensor part  720 , which senses the position or movement of the housing  310 , may be located on the body  420 . The pattern coil  410  may be located on the upper surface of the body  420 , and the second sensor part  720  may be located on the lower surface of the body  420 . 
     The body  420  may include the through-hole  421 . Light that has passed through the lens module may pass through the through-hole  421  of the body  420 . The through-hole  421  may be formed in the central portion of the body  420 . The through-hole  421  may have a circular shape, without being limited thereto. 
     The body  420  may include a coupling hole  422  for the penetration of a wire of the lateral support member  630 , and an electrical conduction portion  423  formed on the lower surface of the body  420  so as to come into contact with the coupling hole  422 . The coupling hole  422  may be formed in the body  420 , and the lateral support member  630  may pass through the coupling hole  422 . The electrical conduction portion  423 , which is formed on the lower surface of the body  420  so as to come into contact with the coupling hole  422 , may be electrically connected to the lateral support member  630 , which is coupled to the coupling hole  422 . 
     The terminal portion  430  may be connected to an external power supply through conductive layers  431  and  432 . A voltage may be supplied to the body  420  through the terminal portion  430 . The terminal portion  430  may extend from the lateral side of the body  420 . A pair of terminal portions  430  may be located on opposite lateral sides of the body  420 . The body  420  and the terminal portions  430  may be integrally formed with each other. The terminal portions  430  may have a width smaller than the body  420 . Each of the terminal portions  430  may be accommodated in a terminal accommodation portion  540 , which is formed in a portion of the side surface of the base  500 . The terminal accommodation portion  540  may have a width corresponding to the width of the terminal portion  430 . 
     The base  500  may support the second mover  300 . The printed circuit board may be located below the base  500 . The base  500  may include the through-hole  510 , which is formed at a position corresponding to the lens coupling portion  211  of the bobbin  210 . The base  500  may function as a sensor holder for protecting the image sensor. An infrared-ray filter may be coupled to the through-hole  510  of the base  500 . Alternatively, the infrared-ray filter may be coupled to a separate sensor holder, which is located below the base  500 . 
     The base  500  may include, for example, a foreign substance collection portion  520 , which collects a foreign substance introduced into the cover member  100 . The foreign substance collection portion  520  may be located on the upper surface of the base  500 , and may include an adhesive material so as to collect a foreign substance in the inner space defined by the cover member  100  and the base  500 . 
     The base  500  may include a sensor part accommodation recess  530  to which the second sensor part  720  is coupled. That is, the second sensor part  720  may be mounted in the sensor part accommodation recess  530 . At this time, the second sensor part  720  may sense the horizontal movement or tilting of the housing  310  by sensing the second drive part  320  coupled to the housing  310 . For example, two sensor part accommodation recesses  530  may be provided. The two sensor part accommodation recesses  530  may accommodate the respective second sensor parts  720 . In this case, the second sensor parts  720  may be arranged so as to sense all of the x-axis movement and the y-axis movement of the housing  310 . That is, imaginary lines that connect the two second sensor parts  720  to the optical axis, may be perpendicular to each other. 
     The support member  600  may connect two or more ones of the first mover  200 , the second mover  300 , the pattern coil part  400 , and the base  500  to each other. The support member  600  may elastically connect two or more of the first mover  200 , the second mover  300 , the pattern coil part  400 , and the base  500  to each other so as to enable relative movement between the respective constituent elements. The support member  600  may be an elastic member. The support member  600  may include, for example, the upper support member  610 , the lower support member  620 , the lateral support member  630 , and the electrical conduction member  640 . The electrical conduction member  640  may be used for the electrical conduction between the upper support member  610  and the lower support member  620 , and may be described separately from the upper support member  610 , the lower support member  620 , and the lateral support member  630 . 
     The upper support member  610  may include, for example, the outer-side portion  611 , the inner-side portion  612 , and a connection portion  613 . The upper support member  610  may include the outer-side portion  611  coupled to the housing  310 , the inner-side portion  612  coupled to the bobbin  210 , and the connection portion  613  for elastically connecting the outer-side portion  611  and the inner-side portion  612  to each other. 
     The upper support member  610  may be connected to the top of the first mover  200  and the top of the second mover  300 . More specifically, the upper support member  610  may be coupled to the top of the bobbin  210  and the top of the housing  310 . The inner-side portion  612  of the upper support member  610  may be coupled to the upper coupling portion  213  of the bobbin  210 , and the outer-side portion  611  of the upper support member  610  may be coupled to the upper coupling portion  313  of the housing  310 . 
     The upper support member  610  may be divided into, for example, six upper electrical conduction parts. At this time, two upper electrical conduction parts among the six upper electrical conduction parts may be used to apply a voltage to the first drive part  220  via the electrical conduction with the lower support member  620 . Each of the two upper electrical conduction parts may be electrically connected to each of a pair of lower support members  620   a  and  620   b  via the electrical conduction member  640 . The other four upper electrical conduction parts among the six upper electrical conduction parts may conduct electricity together with the first sensor part  710 , which is located on the bobbin  210 . The other four upper electrical conduction parts may be used to supply a voltage to the first sensor part  710  and to enable the transmission and reception of information or signals between the controller and the first sensor part  710 . In an alternative embodiment, two upper electrical conduction parts among the six upper electrical conduction parts may be directly connected to the first drive part  220 , and the other four upper electrical conduction parts may be connected to the first sensor part  710 . 
     The lower support member  620  may include, for example, the pair of lower support members  620   a  and  620   b . That is, the lower support member  620  may include a first lower support member  620   a  and a second lower support member  620   b . At this time, the lower support member  620  may be described as including two lower electrical conduction parts. Each of the first lower support member  620   a  and the second lower support member  620   b  may be connected to each of the lead cables of the first drive part  220 , which is configured as a coil, thereby supplying a voltage thereto. The lower support members  620   a  and  620   b  may be electrically connected to the pattern coil  410 . Through this structure, the lower support members  620  may provide a voltage supplied from the pattern coil  410  to the first drive part  220 . 
     The lower support member  620  may include, for example, the outer-side portion  621 , the inner-side portion  622 , and a connection portion  623 . The lower support member  620  may include the outer-side portion  621  coupled to the housing  310 , the inner-side portion  622  coupled to the bobbin  210 , and the connection portion  623  for elastically connecting the outer-side portion  621  and the inner-side portion  622  to each other. 
     The lower support member  620  may be connected to the bottom of the first mover  200  and the bottom of the second mover  300 . More specifically, the lower support member  620  may be coupled to the bottom of the bobbin  210  and the bottom of the housing  310 . The inner-side portion  622  of the lower support member  620  may be coupled to the lower coupling portion of the bobbin  210 , and the outer-side portion  621  of the lower support member  620  may be coupled to the lower coupling portion of the housing  310 . 
     The lateral support member  630  may be coupled at one side thereof to the pattern coil part  400  and/or the base  500  and coupled at the other side thereof to the upper support member  610  and/or the second mover  300 . In one example, the lateral support member  630  may be coupled at one side thereof to the pattern coil part  400  and coupled at the other side thereof to the housing  310 . In another example, the lateral support member  630  may be coupled at one side thereof to the base  500  and coupled at the other side thereof to the upper support member  610 . As such, the lateral support member  630  may elastically support the second mover  300  so that the second mover  300  is horizontally moved or tilted relative to the base  500 . 
     The lateral support member  630  may include a plurality of wires. In addition, the lateral support member  630  may include a plurality of leaf-springs. In one example, the lateral support member  630  may be provided in the same number as the upper support member  610 . That is, the lateral support member  630  may be divided into six lateral support parts so as to be connected the respective parts of the upper support member  610 . In this case, each part of the lateral support member  630  may supply a voltage, supplied from the pattern coil part  400  or an external power supply, to each part of the upper support member  610 . The number of lateral support members  630  may be determined based on, for example, symmetry. In one example, the lateral support member  630  may include a total of eight parts such that two parts are arranged on each corner of the housing  310 . 
     The lateral support member  630  or the upper support member  610  may include, for example, a shock-absorbing part for absorbing an external shock. The shock-absorbing part may be provided on the lateral support member  630  and/or the upper support member  610 . The shock-absorbing part may be a separate member, such as a damper. In addition, the shock-absorbing part may be realized by changing the shape of a portion of at least one of the lateral support member  630  and the upper support member  610 . 
     The electrical conduction member  640  may electrically connect the upper support member  610  and the lower support member  620  to each other. The electrical conduction member  640  may be separately provided from the lateral support member  630 . A voltage supplied to the upper support member  610  may be supplied to the lower support member  620  through the electrical conduction member  640 , and in turn may be supplied to the first drive part  220  through the lower support member  620 . In an alternative embodiment, when the upper support member  610  is directly connected to the first drive part  220 , the electrical conduction member  640  may be omitted. 
     The sensor part  700  may be used for at least one of Auto-Focusing (AF) feedback and hand tremor compensation feedback. The sensor part  700  may sense the position or movement of at least one of the first mover  200  and the second mover  300 . 
     The sensor part  700  may include, for example, the first sensor part  710  and the second sensor part  720 . The first sensor part  710  may provide information for AF feedback by sensing the vertical movement of the bobbin  210  relative to the housing  310 . In this case, the first sensor part  710  may be referred to as an auto-focusing feedback sensor. The second sensor part  720  may provide information for OIS feedback by sensing the horizontal movement or tilting of the second mover  300 . In this case, the second sensor part  720  may be referred to as a hand tremor compensation feedback sensor. 
     The first sensor part  710  may be located on the first mover  200 . The first sensor part  710  may be located on the bobbin  210 . The first sensor part  710  may be inserted into and fixed to a sensor guide groove (not illustrated) formed in the outer circumferential surface of the bobbin  210 . The first sensor part  710  may include, for example, a first sensor  711 , a flexible printed circuit board  712 , and a terminal portion  713 . 
     The first sensor  711  may sense the movement or position of the bobbin  210 . Alternatively, the first sensor  711  may sense the position of the second drive part  320  mounted on the housing  310 . The first sensor  711  may be, for example, a hall sensor. In this case, the first sensor  711  may sense variation in the relative positions between the bobbin  210  and the housing  310  by sensing magnetic force generated from the second drive part  320 . 
     The first sensor  711  may be mounted on the flexible printed circuit board  712 . The flexible printed circuit board  712  may have, for example, a strip shape. At least a portion of the flexible printed circuit board  712  may have a shape corresponding to a sensor guide groove, which is formed in the top of the bobbin  210 , so as to be inserted into the sensor guide groove. The flexible printed circuit board  712  may bend so as to correspond to the shape of the sensor guide groove. The terminal portion  713  may be formed on the flexible printed circuit board  712 . 
     The terminal portion  713  may receive a voltage and supply the same to the first sensor  711  through the flexible printed circuit board  712 . In addition, the terminal portion  713  may receive a control command for the first sensor  711 , or may transmit a sensed value from the first sensor  711 . In one example, four terminal portions  713  may be provided and may be electrically connected to the upper support member  610 . In this case, two terminal portions  713  may be used to receive a voltage from the upper support member  610 , and the other two terminal portions  713  may be used to transmit or receive information or signals. 
     The second sensor part  720  may be located on the pattern coil part  400 . The second sensor part  720  may be located on the upper surface or the lower surface of the pattern coil  410 . In one example, the second sensor part  720  may be disposed on the lower surface of the pattern coil  410  so as to be located in the sensor part accommodation recess  530  formed in the base  500 . The second sensor part  720  may include, for example, a hall sensor. In this case, the second sensor part  720  may sense the movement of the second mover  300  relative to the pattern coil part  400  by sensing the magnetic field of the second drive part  320 . The hall sensor may be mounted on the body  420  via Surface Mount Technology (SMT). In one example, at least two second sensor parts  720  may be provided to sense all of the x-axis movement and the y-axis movement of the second mover  300 . 
     In one example, the second sensor part  720  may be located so as not to overlap the pattern coil  410  in the optical-axis direction. The second sensor part  720  and the pattern coil  410 , as illustrated in  FIG.  5   , may be horizontally spaced apart from each other by a distance D. At this time, the body  420  may be formed in two layers. 
     In an alternative embodiment, the second sensor part  720  may be located so as to overlap the pattern coil  410  in the optical-axis direction. In this case, the body  420  may be formed in three or more layers in order to avoid the electrical conduction between the pattern coil  410  and the second sensor part  720 . 
     Hereinafter, the operation of the camera module according to the present embodiment will be described. 
     First, the auto-focusing function of the camera module according to the present embodiment will be described. When a voltage is supplied to the coil of the first drive unit  220 , the first drive part  220  begins to move relative to the second drive part  320  via the electromagnetic interaction between the first drive part  220  and the magnet of the second drive part  320 . At this time, the bobbin  210 , coupled to the first drive part  220 , is integrally moved along with the first drive part  220 . That is, the bobbin  210 , coupled inside the lens module, is vertically moved relative to the housing  310 . This movement of the bobbin  210  causes the lens module to be moved closer to or farther away from the image sensor. Thereby, in the present embodiment, focusing on a subject may be adjusted by supplying a voltage to the coil of the first drive part  220 . 
     Auto-focusing feedback may be applied in order to more precisely realize the auto-focusing function of the camera module according to the present embodiment. The first sensor  711 , which is mounted on the bobbin  210  and is provided as a hall sensor, senses the magnetic field of the magnet of the second drive part  320  fixed to the housing  310 . When the bobbin  210  is moved relative to the housing  310 , the magnitude of the magnetic field sensed by the first sensor  711  varies. As such, the first sensor  711  may sense the moved distance or position of the bobbin  210  in the z-axis direction and may transmit the sensed value to the controller. The controller determines whether or not to additionally move the bobbin  210  based on the received sensed value. Because this process is performed in real time, the camera module according to the present embodiment may more precisely perform the auto-focusing function via auto-focusing feedback. 
     The hand tremor compensation function of the camera module according to the present embodiment will be described. When a voltage is supplied to the pattern coil  410  of the pattern coil part  400 , the second drive part  320  begins to move relative to the pattern coil part  400  via the electromagnetic interaction between the pattern coil  410  and the magnet of the second drive part  320 . At this time, the housing  310  coupled to the second drive part  320  is integrally moved along with the second drive part  320 . That is, the housing  310  is horizontally moved relative to the base  500 . At this time, the housing  310  may be tilted relative to the base  500 . This movement of the housing  310  causes the lens module to be moved relative to the image sensor in a direction parallel to the direction in which the image sensor is placed. Thereby, in the present embodiment, the hand tremor compensation function may be performed by supplying a voltage to the pattern coil  410 . 
     Hand tremor compensation feedback may be applied in order to more precisely realize the hand tremor compensation function of the camera module according to the present embodiment. The pair of second sensor parts  720 , which are mounted on the pattern coil part  400  and are configured as hall sensors, senses the magnetic field of the magnet of the second drive part  320  fixed to the housing  310 . When the housing  310  is moved relative to the base  500 , the magnitude of the magnetic field sensed by the second sensor parts  720  varies. The second sensor parts  720  may sense the moved distance or position of the housing  310  in the horizontal direction (i.e. the x-axis direction and the y-axis direction) and may transmit the sensed value to the controller. The controller determines whether or not to additionally move the housing  310  based on the received sensed value. Because this process is performed in real time, the camera module according to the present embodiment may more precisely perform the hand tremor compensation function via hand tremor compensation feedback. 
       FIG.  7    is an exploded perspective view of a base  2100 , a printed circuit board  2500 , and a second coil  2300  according to an embodiment. The lens driving unit may further include a position sensor  2400 . 
     The position sensor  2400  may be placed on the center of the second coil  2300  and may sense the movement of a housing  1400 . At this time, the position sensor  2400  may basically sense the movement of the housing  1400  in a first direction, and in some cases, may sense the movement of the housing  1400  in the second and third directions. 
     The position sensor  2400  may be, for example, a hall sensor, or may be any of various other sensors so long as it can sense variation in magnetic force. As illustrated in  FIG.  7   , two position sensors  2400  may be installed on corner portions of the base  2100 , which is located below the printed circuit board  2500 , and more specifically, may be inserted into position sensor seating recesses  2150  formed in the base  2100 . The printed circuit board  2500  may include an upper surface, on which the second coil  2300  is placed, and a lower surface opposite to the upper surface. 
     Each position sensor  2400  may be downwardly spaced apart from the second coil  2300  by a predetermined distance with the printed circuit board  2500  interposed therebetween. That is, the position sensor  2400  may not be directly connected to the second coil  2300 , and the second coil  2300  may be installed on the upper surface of the printed circuit board  2500  and the position sensor  2400  may be installed on the lower surface of the printed circuit board  2500 . 
     The lens driving apparatus according to the above-described embodiment may be used in various fields, such as, for example, in a camera module. The camera module may be applied to, for example, a mobile appliance, such as a cellular phone. 
     The camera module according to an embodiment may include a lens barrel coupled to a bobbin, and an image sensor (not illustrated). At this time, the lens barrel may include at least one lens sheet for transferring an image to the image sensor. 
     In addition, the camera module may further include an infrared-ray blocking filter (not illustrated). The infrared-ray blocking filter serves to inhibit infrared-rays from being introduced into the image sensor. 
     In this case, the infrared-ray blocking filter may be installed on the base  2100  illustrated in  FIG.  9    at a position corresponding to the image sensor, and may be coupled to a holder member (not illustrated). In addition, the holder member may support the bottom of the base  2100 . 
     A separate terminal member may be installed on the base  2100  for the electrical conduction with the printed circuit board  2500 . Alternatively, a terminal may be integrally formed with the base  2100  using, for example, a surface electrode. 
     The base  2100  may further include an adhesive member  2110  for attaching the printed circuit board  2500  to the base  2100 . 
     The adhesive member  2110  may be provided on one side surface of the base  2100 , and as illustrated, may be provided at the position at which one side surface of the base  2100  comes into surface contact with one side surface of the printed circuit board  2500 . 
     Although the adhesive member  2110  is illustrated as being provided on one side surface of the base  2100  in the present embodiment, the adhesive member  2110  may be additionally provided on each of two opposite side surfaces of the base  2100 . 
     The adhesive members  2110  illustrated in the present embodiment are merely given by way of example, and the scope of the embodiments is not limited by the position and number of adhesive members  2110  so long as the adhesive members  2110  can attach the printed circuit board  2500  to the base  2100 . 
     The base  2100  may further include a seating recess  2140  for a spring unit (not illustrated), and the seating recess  2140  may be provided with a stepped portion. 
     In order to attach the base  2100  and the printed circuit board  2500  to each other, the adhesive member  2110  may be provided on one surface of the base  2100 . When the amount of the adhesive member  2110  is excessively small, the adhesive force between the base  2100  and the printed circuit board  2500  may be insufficient, causing the printed circuit board  2500  to be separated from the base  2100 . When the amount of the adhesive member  2110  is excessively large, the adhesive member  2110  may be introduced into the seating recess  2140 , thus making it difficult for the spring unit (not illustrated) to be accurately coupled to the seating recess  2140 . 
     Therefore, the seating recess  2140  of the base  2100  may be provided with the stepped portion in order to inhibit the adhesive member  2110  from being introduced into the seating recess  2140 . 
     The stepped portion may include at least one side surface portion  2143  forming the side surface of the stepped portion, a lower surface portion  2142  forming the lower surface of the stepped portion, and a stepped space  2141  defined by the side surface portion  2143  and the lower surface portion  2142  for accommodating therein the adhesive member  2110 . 
     The lower surface portion  2142  of the stepped space  2141  may have a planar cross-sectional shape. 
     In addition, the cross section of the lower surface portion  2142  of the stepped space  2141  may be convex in the first direction, which is orthogonal to the lower surface portion  2142 . 
     When the cross section of the lower surface portion  2142  of the stepped space  2141  is convex in the first direction, which is orthogonal to the lower surface portion  2142 , the adhesive member  2110  is guided so as to be gathered to opposite sides of the lower surface portion  2142 , which may effectively inhibit the adhesive member  2110  from being introduced into the seating recess  2140 . 
     In addition, the cross section of the lower surface portion  2142  of the stepped space  2141  may be concave in the first direction, which is orthogonal to the lower surface portion  2142 . 
     When the cross section of the lower surface portion  2142  of the stepped space  2141  is concave in the first direction, which is orthogonal to the lower surface portion  2142 , the adhesive member  2110  is guided so as to be gathered to the center of the lower surface portion  2142 , which may effectively inhibit the adhesive member  2110  from being introduced into the seating recess  2140 . 
     In addition, the cross section of the lower surface portion  2142  of the stepped space  2141  may have a sinusoidal shape. 
     When the cross section of the lower surface portion  2142  of the stepped space  2141  has a sinusoidal shape, the adhesive member  2110  is guided so as to be gathered to a plurality of recesses formed in the lower surface portion  2142 , which may effectively inhibit the adhesive member  2110  from being introduced into the seating recess  2140 . 
     Although only one single stepped portion is illustrated in the present embodiment, a plurality of stepped portions may be provided. 
     Because the provision of the plurality of stepped portions ensures the provision of a plurality of spaces in which the adhesive member  2110  may be accommodated, the introduction of the adhesive member  2110  into the seating recess  2140  may be more effectively inhibited. 
     A plurality of protruding members may protrude upward from the lower surface portion  2142  by a predetermined height. 
     Because the protruding members, provided on the lower surface portion  2142 , increase resistance in the flow of the adhesive member  2110  introduced into the stepped space  2141 , the introduction of the adhesive member  2110  from the stepped space  2141  into the seating recess  2140  may be more effectively inhibited. 
     Although the protruding members may have a semi-spherical shape, this is merely given by way of example, and the protruding members  2144  may have a conical shape or a polygonal shape. 
     The base  2100  may function as a sensor holder for protecting the image sensor. In this case, a downwardly protruding portion may be formed along the side surface of the base  2100 . However, this may be not necessary, and although not illustrated, a separate sensor holder may be located below the base  2100 . 
       FIG.  8    illustrates the upper surface of the printed circuit board according to the embodiment, and  FIG.  9    illustrates the lower surface of the printed circuit board according to the embodiment. 
     Referring to  FIGS.  8  and  9   , the printed circuit board  2500  of the embodiment includes a first printed-circuit-board portion  2500   a , which has a hollow shape in order to accommodate the bobbin, a second printed-circuit-board portion  2500   b , which extends from at least one side of the first printed-circuit-board portion  2500   a  and is bendable, and a third printed-circuit-board portion  2500   c , which extends from at least one side of the second printed-circuit-board portion  2500   b  and includes a terminal  2510  for electrical communication between the printed circuit board  2500  and a controller (not illustrated). 
     The first printed-circuit-board portion  2500   a  may have a hollow shape such that the center thereof defines the circumference C. 
     In addition, the first printed-circuit-board portion  2500   a  having a hollow shape may include one or more protruding hollowed portions  2530 , which are formed in the inner circumferential surface of the first printed-circuit-board portion  2500   a  so as to protrude radially outward. 
     The protruding hollowed portions  2530  may form recesses in the inner circumferential surface of the first printed-circuit-board portion  2500   a.    
     In the lens driving apparatus of the embodiment, the printed circuit board  2500  may be provided on the upper surface of the base  2100 , and a circuit member  2310  may be provided on the upper surface of the printed circuit board  2500 . 
     In other words, in the lens driving apparatus of the embodiment, the base  2100 , the printed circuit board  2500 , and the circuit member  2310  may be stacked one above another in sequence from the bottom side. When the first printed-circuit-board portion  2500   a  is not provided with the protruding hollowed portions  2530 , the circuit member  2310  may come into surface contact with the printed circuit board  2500 . 
     When the circuit member  2310  comes into surface contact with the printed circuit board  2500 , and in turn the printed circuit board  2500  comes into surface contact with the base  2100 , a protruding member (not illustrated) provided on the upper surface of the base  2100  may come into surface contact with the printed circuit board  2500 , rather than coming into contact with the circuit member  2310 . 
     With this structure, the height from the lower surface of the base  2100  to one surface of the circuit member  2310  may vary depending on the thickness of the printed circuit board  2500 , which may make it difficult to maintain the consistent quality of the lens driving unit. 
     However, when the first printed-circuit-board portion  2500   a  is provided with the protruding hollowed portions  2530 , the aforementioned protruding member (not illustrated) provided on the upper surface of the base  2100  may penetrate the protruding hollowed portions  2530  to thereby come into contact with the circuit member  2310 . 
     Thereby, the height from the lower surface of the base  2100  to one surface of the circuit member  2310  may be consistently maintained. 
     As illustrated in the drawings, in a coordinate system, the origin of which is the center of the first printed-circuit-board portion  2500   a , a total of eight protruding hollow portions  2530  may be provided in such a manner that two are provided in the first quadrant, two are provided in the second quadrant, two are provided in the third quadrant, and two are provided in the fourth quadrant. 
     This is merely given by way of example, and the shape, position, and number of protruding hollow portions  2530  may be altered in various ways by the user depending on the shape of the base  2100 , and the scope of the embodiment is not limited thereby. 
     The first printed-circuit-board portion  2500   a  may have a first diagonal length X 1  based on the center thereof. 
     In addition, the first printed-circuit-board portion  2500   a  may have a second diagonal length X 2  based on the center thereof, which crosses the first diagonal length X 1 . 
     The first diagonal length X 1  and the second diagonal length X 2  may be the same as each other. 
     On the other hand, the first diagonal length X 1  and the second diagonal length X 2  may differ from each other. 
     In addition, the first diagonal length X 1  and the second diagonal length X 2  may be orthogonal to each other, or may not be orthogonal to each other. 
     The circuit member  2310  may be stacked on one surface of the printed circuit board  2500 , and the first diagonal length X 1  of the printed circuit board  2500  may be the same as the first diagonal length X 1  of the circuit member  2310 . 
     In addition, the second diagonal length X 2  of the printed circuit board  2500  may be the same as the second diagonal length X 2  of the circuit member  2310 . 
     In addition, both the first diagonal length X 1  and the second diagonal length X 2  of the printed circuit board  2500  may be the same as the first diagonal length X 1  and the second diagonal length X 2  of the circuit member  2310 . 
     When the first diagonal length X 1  and/or the second diagonal length X 2  of the printed circuit board  2500  is the same as the first diagonal length X 1  and/or the second diagonal length X 2  of the circuit member  2310 , the distortion of the circuit member  2310  or the printed circuit board  2500  may be inhibited in the state where the circuit member  2310  is stacked on one surface of the printed circuit board  2500 , which may improve the quality of the camera module. 
     The second printed-circuit-board portion  2500   b  may extend from one surface of the first printed-circuit-board portion  2500   a . More specifically, the second printed-circuit-board portion  2500   b  may extend from opposite surfaces of the first printed-circuit-board portion  2500   a  in opposite directions. 
     The second printed-circuit-board portion  2500   b  may bend in order to enable the electrical-communication between the first printed-circuit-board portion  2500   a  and the third printed-circuit-board portion  2500   c , which extends from the second printed-circuit-board portion  2500   b  as will be described below, and the controller (not illustrated). 
     Accordingly, the second printed-circuit-board portion  2500   b  may be formed of a Flexible Printed Circuit Board (FPCB). 
     The first printed-circuit-board portion  2500   a , the second printed-circuit-board portion  2500   b , and the third printed-circuit-board portion  2500   c  may be integrally formed with one another. 
     Accordingly, in addition to the second printed-circuit-board portion  2500   b , the first printed-circuit-board portion  2500   a  and the third printed-circuit-board portion  2500   c  may also be formed of a flexible printed circuit board. 
     Each of the second printed-circuit-board portion  2500   b  and the third printed-circuit-board portion  2500   c  may include at least one elastic member opening  2540 , which provides an accommodation space for the arrangement of a hand-tremor-prevention elastic member (not illustrated). The hand-tremor-prevention elastic member provides elastic force to an optical module, which moves in the second and third directions, which are orthogonal to the first direction, which is parallel to the optical axis, in order to inhibit the user&#39;s hand tremor. 
     Four elastic member openings  2540  may be provided. This is merely given by way of example, and the number of elastic member openings  2540  may be changed depending on the number of hand-tremor-prevention elastic members (not illustrated) required in the lens driving unit. The shape and size of the elastic member openings  2540  may also be altered depending on the user&#39;s requirements, and the scope of the embodiments is not limited thereby. 
     The third printed-circuit-board portion  2500   c  may include at least one terminal  2510  provided so as to be electrically connected to the controller (not illustrated), and a coating member  2520  provided to cover the third printed-circuit-board portion  2500   c  and a portion of the terminal  2510 . 
     The terminal  2510  and the coating member  2520  will be described below in detail with reference to  FIGS.  10  and  11   . 
       FIG.  10    is a detailed view illustrating the third printed-circuit-board portion  2500   c  according to the embodiment. 
     Referring to  FIG.  10   , the third printed-circuit-board portion  2500   c  may include a plurality of terminals  2510  on one surface thereof. The terminals  2510  may protrude from the third printed-circuit-board portion  2500   c  by a first length. 
     More specifically, the first length may be 400 μm or more. 
     When a portion of the printed circuit board  2500  and the controller (not illustrated) come into contact with each other to establish electrical connection therebetween, cracks may be generated in the terminals  2510 . When the length that the terminals  2510  protrude from the third printed-circuit-board portion  2500   c  is 400 μm or more, the generation of cracks in the terminals  2510  may be inhibited, which results in improved reliability and quality of the camera module. 
     Each of the terminals  2510  may have a horizontal length W and a height H. In some embodiments, the terminals  2510  may have the same horizontal length and the same height, or may have different horizontal lengths and different heights. 
     The terminals  2510  may include first terminals A located on opposite ends of the third printed-circuit-board portion  2500   c , and second terminals B located between the two first terminals A. 
     The terminals  2510  may be spaced apart from one another on the third printed-circuit-board portion  2500   c  by a second length d. 
     The coating member  2520  may be located on a portion of each terminal  2510  and over the gap corresponding to the second length d between the terminals  2510 . 
     When the coating member  2520  is located on a portion of each terminal  2510  and over the gap between the terminals  2510 , the thickness of the third printed-circuit-board portion  2500   c  from the lower surface may be increased by a predetermined height. 
     Therefore, when the printed circuit board  2500  is assembled, assembly tolerance may be minimized, and consequently, deterioration in quality due to contact failure may be inhibited. 
     In addition, the second length d may be 0.01 μm. 
     With the distance of 0.01 μm between the terminals  2510 , when the printed circuit board  2500  is assembled in the state where the coating member  2520  is applied on at least two terminals  2510 , it is possible to inhibit a portion of each terminal  2510  from being separated from the printed circuit board  2500 . 
     The coating member  2520  may be formed of a Photo Solder Resist (PSR) or cover layer material. 
     The PSR material is generally applied in order to inhibit the bridging of solder upon soldering after elements are mounted on a circuit board and to inhibit oxidation of an exposed circuit. 
       FIG.  11    illustrates the first terminal A and the second terminal B placed on the third printed-circuit-board portion  2500   c  according to the embodiment. 
     Hereinafter, the coating member  2520  disposed on the first terminal A and the second terminal B will be described with reference to  FIG.  11   . 
     As described above, the first terminals A may be located on opposite ends of the third printed-circuit-board portion  2500   c , and the second terminals B may be located between the two first terminals A so as to be spaced apart from one another. 
     The coating member  2520  disposed on each first terminal A may be applied to only one end of the first terminal A. 
     More specifically, the first terminal A may have a horizontal length W, and the coating member  2520  may introduce the first terminal A from one end thereof by a third length O 1 . 
     That is, when the overall area of the first terminal A is H 1 ×W, the area of the first terminal A over which the coating member  2520  is located may be O 1 ×H 1 , and the area of the first terminal A over which no coating member  2520  is located may be (W−O 1 )×H 1 . 
     The coating member  2520  disposed on the second terminal B may be applied to opposite ends of the second terminal B. 
     More specifically, the second terminal B may have a horizontal length W, and the coating member  2520  may intrude the second terminal B from opposite ends thereof by the length of 2×O 1 . 
     That is, when the overall area of the second terminal B is H 1 ×W, the area of the second terminal B over which the coating member  2520  is located may be 2×(O 1 ×H 1 ), and the area of the second terminal B over which no coating member  2520  is located may be (W−2×O 1 )×H 1 . 
     In addition, the coating member  2520  may be disposed on a portion of the upper surface of each terminal  2510 . 
     In addition, the coating member  2520  may be disposed on a portion of opposite side surfaces of the terminal  2510  and a portion of the upper surface of the terminal  2510 . 
     This is merely given by way of example, and it is sufficient for the coating member  2520  to be applied to two neighboring terminals  2510  so as to inhibit a portion of each terminal  2510  from being separated from the third printed-circuit-board portion  2500   c . The position and area of the coating member  2520  and the like may be altered depending on the user&#39;s requirements, and the scope of the embodiment is not limited thereby. 
       FIG.  12    is an exploded view of the printed circuit board  2500  and the circuit member  2310  according to an embodiment. 
     Referring to  FIG.  12   , the circuit member  2310  and the printed circuit board  2500  of the embodiment may be integrally formed with each other. 
     More specifically, the circuit member  2310  may include an uppermost first circuit member  2311 , a second circuit member  2312  located below the first circuit member  2311 , a third circuit member  2313  located below the second circuit member  2312 , and a fourth circuit member  2314  located below the third circuit member  2313 . 
     The printed circuit board  2500  may include a first circuit board  2511  located below the second circuit member  2312  and a second circuit board  2513  located below the first circuit board  2511 . 
     The first to fourth circuit members  2311 ,  2312 ,  2313  and  2314  may respectively include second circuit member coils  2301 ,  2302 ,  2303  and  2304 , which perform hand tremor compensation by moving a housing in the second and/or third directions via the electromagnetic interaction with a first magnet. 
     The first circuit board  2511  and the second circuit board  2513  may respectively include second circuit board coils  2501  and  2504 , which perform hand tremor compensation by moving the housing in the second and/or third directions via the electromagnetic interaction with the first magnet. 
     Each of the second circuit member coils  2301 ,  2302 ,  2303  and  2304  wound on the first to fourth circuit members  2311 ,  2312 ,  2313  and  2314  may have five turns or more. 
     Although  FIG.  12    illustrates that the second circuit member coil  2304  is wound on the fourth circuit member  2314 , the second circuit member coil  2304  may not be wound on the fourth circuit member  2314  and a position sensor (not illustrated) may be mounted on a portion of the fourth circuit member  2314  at a position corresponding to the second circuit member coil  2304 . 
     The position of the position sensor is not limited to the fourth circuit member  2314 , at least one of the circuit member  2310  and the printed circuit board  2500  may not be provided with the second circuit member coils  2301 ,  2302 ,  2303 , and  2304  and/or the second circuit board coils  2501  and  2504 , and a position sensor (not illustrated) may be mounted on a position corresponding to any one of the second circuit member coils  2301 ,  2302 ,  2303 , and  2304  and/or the second circuit board coils  2501  and  2504 . 
     Each of the second circuit board coils  2501  and  2504 , wound on the first circuit board  2511  and the second circuit board  2513 , may have five turns or more. 
     Expressing the configuration of the lens driving apparatus in a different way, in an embodiment, the circuit members  2310  and the printed circuit board  2500  may include a first circuit board unit  2511  and  2513 , which includes at least one pattern unit for electrical connection with the controller (not illustrated), a second circuit board unit  2311  and  2312 , which is disposed above the first circuit board unit  2511  and  2513 , and a third circuit board unit  2313  and  2314 , which is disposed below the first circuit board unit  2511  and  2513 . 
     The first circuit board unit  2511  and  2513 , the second circuit board unit  2311  and  2312 , and the third circuit board unit  2313  and  2314  may include second coils  2301 ,  2302 ,  2501 ,  2504 ,  2303  and  2304 . 
     In addition, the circuit member  2310 , the printed circuit board  250  and the second coils  2301 ,  2302 ,  2501 ,  2504 ,  2303  and  2304  may be integrally formed with each other. The number of turns of the second circuit member coils  2301 ,  2302 ,  2303  and  2304  and the second circuit board coils  2501  and  2504 , wound on the first to fourth circuit members  2311 ,  2312 ,  2313  and  2314 , the first circuit board  2511  and the second circuit board  2513 , is merely given by way of example, and the number of turns of the second circuit member coils  2301 ,  2302 ,  2303  and  2304  and the second circuit board coils  2501  and  2504  may be altered depending on the user&#39;s requirements, and the scope of the embodiment is not limited thereby. 
     In summary, the lens driving apparatus of the embodiment may include the circuit member  2310  and the printed circuit board  2500 , and the circuit member  2310  and the printed circuit board  2500  may include the first circuit board unit  2511  and  2513 , which includes at least one pattern unit for the electrical connection with the controller, the second circuit board unit  2311  and  2312  disposed above the first circuit board unit  2511  and  2513 , and the third circuit board unit  2313  and  2314  disposed below the first circuit board unit  2511  and  2513 . 
     The first circuit board unit  2511  and  2513 , the second circuit board unit  2311  and  2312 , and the third circuit board unit  2313  and  2314  may include the second coils  2301 ,  2302 ,  2303 ,  2304 ,  2501  and  2504 , which perform hand tremor compensation by moving the housing in the second and/or third directions via the electromagnetic interaction with the first magnet. 
     Each of the second coils  2301 ,  2302 ,  2303 ,  2304 ,  2501  and  2504 , wound on the first circuit board unit  2511  and  2513 , the second circuit board unit  2311  and  2312 , and the third circuit board unit  2313  and  2314 , may have five turns or more. 
     Each of the first circuit board unit  2511  and  2513 , the second circuit board unit  2311  and  2312 , and the third circuit board unit  2313  and  2314  may include a plurality of circuit boards. 
     More specifically, the second circuit board unit  2311  and  2312  may include a first circuit board  2311  and a second circuit board  2312 . 
     The first circuit board unit  2511  and  2513  may include a third circuit board  2511  and a fourth circuit board  2513 . 
     The third circuit board unit  2313  and  2314  may include a fifth circuit board  2313  and a sixth circuit board  2314 . 
     Although  FIG.  12    illustrates that the second coil  2304  is wound on the sixth circuit board  2314 , the second coil  2304  may not be wound on the sixth circuit board  2314 , and a position sensor (not illustrated) may be mounted on a portion corresponding to the position of the second coil  2304 . 
     The position of the position sensor is not limited to the sixth circuit board  2314 , at least one of the first to sixth circuit boards  2311 ,  2312 ,  2511 ,  2513 ,  2313  and  2314  may not be provided with the second coils  2301 ,  2302 ,  2303 ,  2304 ,  2501  and  2504 , and a position sensor (not illustrated) may be mounted on a portion corresponding to the position of each of the second coils  2301 ,  2302 ,  2303 ,  2304 ,  2501  and  2504 . As described above, the number of turns of each of the second coils  2301 ,  2302 ,  2303 ,  2304 ,  2501  and  2504  wound on the first to sixth circuit boards  2311 ,  2312 ,  2511 ,  2513 ,  2313  and  2314  is given by way of example, and may be altered in various ways depending on the user&#39;s requirements, and the scope of the embodiment is not limited thereby. 
     The lens driving apparatuses illustrated in  FIGS.  8  and  13    illustrates the embodiments in which the printed circuit board  2500  and the circuit member  2310  are not integrally formed with each other and the circuit member  2310  is assembled to the upper surface of the printed circuit board  2500 . 
     When the printed circuit board  2500  and the circuit member  2310  are not integrally formed with each other and the circuit member  2310  is assembled to the upper surface of the printed circuit board  2500 , as described above, the circuit member  2310  may be tilted in the process of being assembled on the printed circuit board  2500 , which may cause deterioration in the quality of the camera module. 
     In addition, a foreign substance may be introduced in the process of assembling the circuit member  2310  on the printed circuit board  2500 , which may cause deterioration in the quality of the camera module. 
     Therefore, the lens driving apparatus of the embodiment illustrated in  FIGS.  12  to  14    has the feature by which the printed circuit board  2500  and the circuit member  2310  are integrally formed with each other in order to solve the problems described above. 
     When the circuit member  2310  and the printed circuit board  2500  are integrally formed with each other according to the embodiment, as described above, the process of assembling the circuit member  2310  on the printed circuit board  2500  may be omitted, which may increase productivity. 
     In addition, when the circuit member  2310  and the printed circuit board  2500  are integrally formed with each other according to the embodiment, as described above, there is no process of assembling the circuit member  2310  on the printed circuit board  2500 , which may inhibit deterioration in the quality of the camera module due to the tilting of the circuit member  2310 . 
     In addition, the circuit member  2310  and the printed circuit board  2500 , which are integrally formed with each other, according to the embodiment may inhibit a foreign substance from being introduced therebetween, which may improve the quality of the camera module. 
       FIG.  13    illustrates the first circuit board according to the embodiment. 
     Referring to  FIG.  13   , the first circuit board  2511  of the embodiment may include a first-first printed-circuit-board portion  2511   a , which has a hollow shape in order to accommodate the bobbin, a first-second printed-circuit-board portion  2511   b , which extends from at least one side of the first-first printed-circuit-board portion  2511   a  and is bendable, and a first-third printed-circuit-board portion  2511   c , which extends from at least one side of the first-second printed-circuit-board portion  2511   b  and includes a pattern  2502  for the electrical-communication between the printed circuit board  2500  and the base  2100 . 
     The first-first printed-circuit-board portion  2511   a  may have a hollow shape such that the center thereof is the circumference C. 
     The first-second printed-circuit-board portion  2511   b  may extend from one surface of the first-first printed-circuit-board portion  2511   a , and more specifically, may extend from opposite surfaces of the first-first printed-circuit-board portion  2511   a  in opposite directions. 
     The first-second printed-circuit-board portion  2511   b  may be provided so as to bend, in order to ensure the electrical-communication between the first-first printed-circuit-board portion  2511   a  and the first-third printed-circuit-board portion  2511   c , which extends from the first-second printed-circuit-board portion  2511   b  as described below, and the base  2100 . 
     Accordingly, the first-second printed-circuit-board portion  2511   b  may be formed of a Flexible Printed Circuit Board (FPCB). 
     The first-first printed-circuit-board portion  2511   a , the first-second printed-circuit-board portion  2511   b , and the first-third printed-circuit-board portion  2511   c  may be integrally formed with one another. 
     Accordingly, in addition to the first-second printed-circuit-board portion  2511   b , the first-first printed-circuit-board portion  2511   a  and the first-third printed-circuit-board portion  2511   c  may be formed of a flexible printed circuit board. 
     Each of the first-second printed-circuit-board portion  2511   b  and the first-third printed-circuit-board portion  2511   c  may include at least one first elastic member opening  2504 , which provides an accommodation space for the arrangement of a hand-tremor-prevention elastic member (not illustrated). The hand-tremor-prevention elastic member provides elastic force to an optical module, which moves in the second and third directions, which are orthogonal to the first direction, which is parallel to the optical axis, in order to inhibit the user&#39;s hand tremor. 
     Four first elastic member openings  2504  may be provided. This is merely given by way of example, and the number of first elastic member openings  2504  may be changed depending on the number of hand-tremor-prevention elastic members (not illustrated) required in the lens driving unit. The shape and size of the first elastic member openings  2504  may also be altered depending on the user&#39;s requirements, and the scope of the embodiments is not limited thereby. 
     The first-third printed-circuit-board portion  2511   c  may include at least one pattern  2502  provided so as to be electrically connected to the base  2100 , and a coating member  2503  provided to cover the first-third printed-circuit-board portion  2511   c  and a portion of the pattern  2502 . 
       FIG.  14    illustrates the second circuit board according to the embodiment. 
     Referring to  FIG.  14   , the second circuit board  2513  of the embodiment may include a second-first printed-circuit-board portion  2513   a , which has a hollow shape in order to accommodate the bobbin, a second-second printed-circuit-board portion  2513   b , which extends from at least one side of the second-first printed-circuit-board portion  2513   a  and is bendable, and a second-third printed-circuit-board portion  2513   c , which extends from at least one side of the first-second printed-circuit-board portion  2511   b.    
     The second-first printed-circuit-board portion  2513   a  may have a hollow shape such that the center thereof is the circumference C. 
     The second-second printed-circuit-board portion  2513   b  may extend from one surface of the second-first printed-circuit-board portion  2513   a , and more specifically, may extend from opposite surfaces of the second-first printed-circuit-board portion  2513   a  in opposite directions. 
     The second-second printed-circuit-board portion  2513   b  may be provided so as to bend, in order to ensure the electrical-communication between the second-first printed-circuit-board portion  2513   a  and the second-third printed-circuit-board portion  2513   c , which extends from the second-second printed-circuit-board portion  2513   b  as described below, and the base  2100 . 
     Accordingly, the second-second printed-circuit-board portion  2513   b  may be formed of a Flexible Printed Circuit Board (FPCB). 
     The second-first printed-circuit-board portion  2513   a , the second-second printed-circuit-board portion  2513   b , and the second-third printed-circuit-board portion  2513   c  may be integrally formed with one another. 
     Accordingly, in addition to the second-second printed-circuit-board portion  2513   b , the second-first printed-circuit-board portion  2513   a  and the second-third printed-circuit-board portion  2513   c  may be formed of a flexible printed circuit board. 
     Each of the second-second printed-circuit-board portion  2513   b  and the second-third printed-circuit-board portion  2513   c  may include at least one second elastic member opening  2505 , which provides an accommodation space for the arrangement of a hand-tremor-prevention elastic member (not illustrated). The hand-tremor-prevention elastic member provides elastic force to an optical module, which moves in the second and third directions, which are orthogonal to the first direction, which is parallel to the optical axis, in order to inhibit the user&#39;s hand tremor. 
     Four second elastic member openings  2505  may be provided. This is merely given by way of example, and the number of second elastic member openings  2505  may be changed depending on the number of hand-tremor-prevention elastic members (not illustrated) required in the lens driving unit. The shape and size of the second elastic member openings  2505  may also be altered depending on the user&#39;s requirements, and the scope of the embodiments is not limited thereby. 
     As is apparent from the above description, reduced manufacturing costs may be accomplished owing to a reduction in the number of elements, processes, and process management points. 
     In addition, the height of an entire product may be reduced, resulting in a reduced product size. 
     In addition, a lens driving apparatus and a camera module including the same according to an embodiment may inhibit deterioration in the quality of the camera module due to warping of a printed circuit board, which is caused when a circuit member is assembled to one surface of the printed circuit board because the printed circuit board and the circuit member have different sizes. 
     In addition, a lens driving apparatus and a camera module including the same according to an embodiment may inhibit contact failure due to a gap between a pad unit provided on one surface of a printed circuit board and a base to which the printed circuit board is assembled. 
     In addition, a lens driving apparatus and a camera module including the same according to an embodiment may inhibit deterioration in the quality of the camera module due to the separation of a portion of a pad from a printed circuit board during soldering in the case where only a pad unit is provided on one surface of the printed circuit board. 
     In addition, a lens driving apparatus and a camera module including the same according to an embodiment may inhibit a circuit member from having an irregular height because it does not come into contact with a base when the circuit member, the base, and a printed circuit board are sequentially assembled with one another so that the printed circuit board is provided on one surface of the base and the circuit member is provided on one surface of the printed circuit board. 
     In addition, a lens driving apparatus and a camera module including the same according to an embodiment may inhibit a pattern, which protrudes from a pad provided on one surface of a printed circuit board, from being cracked by an external shock when the pattern is thin. 
     In addition, a lens driving apparatus and a camera module including the same according to an embodiment may inhibit a circuit member from being slightly tilted in the process of assembling the circuit member so as to be disposed on the top of a printed circuit board. 
     In addition, a lens driving apparatus and a camera module including the same according to an embodiment may inhibit deterioration in the resolution of the camera module when a circuit member is tilted, rather than being evenly disposed on the upper surface of a printed circuit board. 
     In addition, a lens driving apparatus and a camera module including the same according to an embodiment may inhibit deterioration in the resolution of the camera module due to the introduction of a foreign substance between a circuit member and a printed circuit board because the circuit member and the printed circuit board are assembled with each other, rather than being integrally formed with each other. 
     In the above description, although all elements of the embodiments have been described as being coupled or operated in the coupled state thereof, the disclosure is not limited to these embodiments. That is, one or more elements among all of the embodiments may be selectively coupled and operated so long as this configuration falls within the objective range of the embodiments. In addition, the terms “comprises,” “includes,” and/or “has”, when used in this specification, specify the presence of stated elements, but do not preclude the presence or addition of other elements. Unless otherwise defined, all terms (including technical and scientific terms) used herein have the same meaning as commonly understood by one of ordinary skill in the art to which the embodiments belong. It will be further understood that terms, such as those defined in commonly used dictionaries, should be interpreted as having a meaning that is consistent with their meaning in the context of the relevant art and should not be interpreted in an idealized or overly formal sense unless expressly so defined herein. 
     The above description merely describes the technical sprit of the embodiments by way of example, and various modifications and substitutions related to the above description are possible by those skilled in the art without departing from the scope and spirit of the disclosure. Accordingly, the disclosed embodiments are provided for the purpose of description and are not intended to limit the technical scope of the disclosure, and the technical scope of the disclosure is not limited by the embodiments. The range of the disclosure should be interpreted based on the following claims, and all technical ideas that fall within the range equivalent to the claims should be understood as belonging to the scope of the disclosure.