Patent Publication Number: US-11665414-B2

Title: Camera module and optical device including same

Description:
CROSS-REFERENCE TO RELATED APPLICATIONS 
     This application is a continuation of U.S. application Ser. No. 17/255,816, filed Dec. 23, 2020; which is the U.S. national stage application of International Patent Application No. PCT/KR2019/007728, filed Jun. 26, 2019, which claims the benefit under 35 U.S.C. § 119 of Korean Application No. 10-2018-0073241, filed Jun. 26, 2018, the disclosures of each of which are incorporated herein by reference in their entirety. 
    
    
     TECHNICAL FIELD 
     Embodiments relate to a camera module and an optical device including the same. 
     BACKGROUND ART 
     It is difficult to apply technology of a voice coil motor (VCM) used in existing general camera modules to a subminiature, low-power camera module, and therefore research related thereto has been actively conducted. 
     Demand for and production of electronic products, such as smartphones and mobile phones equipped with cameras, have increased. Cameras for mobile phones are trending toward increased resolution and miniaturization. As a result, an actuator has also been miniaturized, increased in diameter, and been made multifunctional. In order to realize a high-resolution camera for mobile phones, improvement in the performance of the camera for mobile phones and additional functions thereof, such as autofocusing, handshake correction, and zooming, are required. 
     DISCLOSURE 
     Technical Problem 
     Embodiments provide a camera module and an optical device including the same, which are capable of improving performance of blocking EMI noise and of reducing the electrical resistance between the reinforcing member and the ground of the board. 
     Technical Solution 
     A camera module according to an embodiment includes a lens moving unit including a lens, a connecting board connected to the lens moving unit, and a connector unit connected to the connecting board, wherein the connector unit includes a board including a cavity and a ground layer formed in an upper surface thereof, a noise-blocking unit disposed in the cavity in the board so as to be in contact with the ground layer, and a reinforcing member, which is disposed on the noise-blocking unit and is disposed over the cavity in the board and on an upper surface of the board, and wherein a length of one side of the noise-blocking unit is less than a length of one side of the cavity in the board when viewed in a plan view. 
     The noise-blocking unit includes a first portion disposed in the cavity in the board and a second portion disposed on the connecting board, an end of the first portion being disposed in the cavity in the board. 
     A length of a short side of the noise-blocking unit may be less than a length of a long side of the cavity in the board. 
     A region of the ground layer may define a bottom surface of the cavity in the board. 
     A length of one long side of the cavity in the board may be greater than a length of another long side of the cavity in the board. 
     The camera module may further include an adhesive disposed between the reinforcing member and the noise-blocking unit. 
     The cavity in the board may include a first inner surface, and the noise-blocking unit may include a first surface that faces the first inner surface of the cavity in the board, the first surface of the noise-blocking unit being spaced apart from the first inner surface of the cavity in the board. 
     The cavity in the board may include a second inner surface that faces the first inner surface and a third inner surface connecting the first inner surface to the second inner surface, and the noise-blocking unit may include a second surface that faces the second inner surface of the cavity in the board and a third surface that faces the third inner surface of the cavity in the board, the second surface of the noise-blocking unit being spaced apart from the second inner surface of the cavity in the board, and the third surface of the noise-blocking unit being spaced apart from the third inner surface of the cavity in the board. 
     A portion of the adhesive may be disposed in the cavity in the board. 
     A vertical length of the noise-blocking unit and a vertical length of the adhesive may be less than a vertical length of the cavity, the vertical direction being a direction that is perpendicular to an optical axis of the lens moving unit and extends from a first outer surface to a second outer surface of a second region of the board, and the first and second outer surfaces of the second region facing each other. 
     The adhesive may include a conductive particle, which is in contact with the ground layer through the noise-blocking unit. 
     A resistance value between the reinforcing member and the ground layer may be lower than 1 ohm. 
     A camera module according to another embodiment includes a lens moving unit including a lens, a connecting board connected to the lens moving unit, and a connector unit connected to the connecting board, wherein the connector unit includes a board including a cavity and a ground layer formed in an upper surface thereof, a noise-blocking unit disposed in the cavity in the board so as to be in contact with the ground layer, and a reinforcing member, which is disposed on the noise-blocking unit and is disposed over the cavity in the board and on an upper surface of the board, wherein the noise-blocking unit includes a first portion disposed in the cavity in the board and a second portion disposed on the connecting board, and the end of the first portion is disposed in the cavity in the board. 
     Advantageous Effects 
     Embodiments are able to improve the performance of blocking EMI noise and to reduce the electrical resistance between the reinforcing member and the ground of the board. 
    
    
     
       DESCRIPTION OF DRAWINGS 
         FIG.  1    is a cross-sectional view of the camera module according to an embodiment; 
         FIGS.  2 A to  2 D  are views illustrating a procedure of coupling a noise-blocking unit, an adhesive and a reinforcing member to a board; 
         FIG.  3    is a cross-sectional view taken along line A-B in  FIG.  2 D ; 
         FIG.  4    is a cross-sectional view taken along line C-D in  FIG.  2 D ; 
         FIG.  5    is a cross-sectional view of an embodiment of the board shown in  FIG.  1   ; 
         FIG.  6    is a view illustrating an embodiment of the adhesive; 
         FIG.  7    is a view illustrating the case in which the size of an adhesive and the size of an EMI film are larger than the size of a groove in a board; 
         FIG.  8    is a perspective view of a camera module according to another embodiment; 
         FIG.  9    is a perspective view of a portable terminal according to an embodiment; and 
         FIG.  10    is a view illustrating the configuration of the portable terminal illustrated in  FIG.  9   . 
     
    
    
     BEST MODE 
     Hereinafter, embodiments will be clearly elucidated via description thereof with reference to the accompanying drawings. In the following description of the embodiments, it will be understood that, when an element such as a layer (film), region, pattern, or structure is referred to as being “on” or “under” another element, it can be “directly” on or under the other element, or can be “indirectly” disposed such that an intervening element may also be present. In addition, it will also be understood that the criteria for “on” or “under” are determined on the basis of the drawings. 
     In the drawings, the dimensions of layers may be exaggerated, omitted or illustrated schematically for clarity and convenience of description. In addition, the dimensions of constituent elements may not accurately reflect the actual dimensions thereof. Wherever possible, the same reference numbers will be used throughout the drawings to refer to the same or like parts. 
     Hereinafter, a camera module according to an embodiment will be described with reference to the accompanying drawings. For the convenience of description, although the camera module according to the embodiment is described using a rectangular coordinate system (x, y, z), the lens moving unit may be described using some other coordinate systems, and the embodiments are not limited with regard thereto. In the respective drawings, the X-axis direction and the Y-axis direction mean directions perpendicular to an optical axis, i.e. the Z-axis. The Z-axis direction, which is the optical-axis direction, may be referred to as a “first direction”, the X-axis direction may be referred to as a “second direction”, and the Y-axis direction may be referred to as a “third direction”. 
     The camera module according to the embodiment of the present invention is capable of performing an “auto-focusing function”. Here, the “auto-focusing function” serves to automatically focus an image of a subject on an image sensor surface. 
     In addition, the camera module according to the embodiment may perform a function of “handshake correction”. Here, the function of “handshake correction” may serve to inhibit the contour line of a captured image from being indistinctly formed due to vibration caused by shaking of the user&#39;s hand when capturing a still image. 
       FIG.  1    is a cross-sectional view of the camera module  200  according to the embodiment. 
     Referring to  FIG.  1   , the camera module  200  may include a board  800 , a holder  600  disposed on the board  800 , a lens moving unit  100  mounted on the holder  600 , a connector  840  disposed on the board  800 , a noise-blocking unit  70 , a reinforcing member  85  disposed on the board  800 , and an adhesive  83  interposed between the reinforcing member  85  and the board  800 . 
     The board  800  may include a plurality of pattern layers, an insulation layer interposed between the plurality of pattern layers, cover layers disposed on the outermost pattern layers, among the plurality of pattern layers, so as to protect the pattern layers, and a contact (or a via) adapted to conductively connect the pattern layers to each other. 
     The board  800  may include a first region  801  in which the lens moving unit  100  is disposed, a second region  802  in which the connector  840  is disposed, and a third region  803  connecting the first region  801  to the second region  802 . 
     The first region  801  of the board  800  may alternatively be referred to as a “first board”, the second region  802  of the board may alternatively be referred to as a “second board”, and the third region  803  of the board  800  may alternatively be referred to as a “connecting board”. 
     In another embodiment, the first region  801  or the first board of the board  800  may be included in the lens moving unit  100 . 
     Each of the first region  801  and the second region  802  of the board  800  may include a flexible substrate  800 - 1  and rigid substrates  800 - 2  and  800 - 3 . The reason for this is because each of the first region  801  and the second region  802  requires a predetermined strength in order to be capable of supporting the lens moving unit  100  and the connector  840 . 
     For example, each of the first region  801  and the second region  802  of the board  800  may include a first rigid substrate  800 - 2 , disposed on the flexible substrate  800 - 1 , and a second rigid substrate  800 - 3 , disposed beneath the flexible substrate  800 - 1 . 
     The third region  802  of the board  800  may include the flexible substrate  800 - 1 . The flexible substrate  800 - 1  included in the first to third regions  801  to  803  of the board  800  may be integrally formed. 
     Although each of the first region  801  and the second region  802  may be a rigid substrate and the third region may be a flexible substrate, as described above, the disclosure is not limited thereto. In another embodiment, at least one of the first to third regions  801  to  803  of the board  800  may include a rigid substrate, and the remaining ones of the first to third regions  801  to  803  may include a flexible substrate. 
       FIG.  5    is a cross-sectional view of an embodiment of the board  800  shown in  FIG.  1   . 
     Referring to  FIG.  5   , the board  800  may include a plurality of pattern layers  82 - 1  to  82 - 6 , which are disposed so as to be spaced apart from each other in the optical-axis direction or in the vertical direction, insulation layers (or insulation barriers or insulation films)  91 - 1  to  91 - 5  interposed between the plurality of pattern layers  82 - 1  to  82 - 6  so as to insulate the pattern layers from each other, and cover layers  81   a ,  81   b ,  92 - 1  and  92 - 2  for protecting the plurality of pattern layers  82 - 1  to  82 - 6  from external impact or the like. 
     Referring to  FIG.  5   , the flexible substrate  800 - 1  may include an insulation layer  91 - 3 , a pattern layer  82 - 3  disposed on the insulation layer  91 - 3 , and a pattern layer  82 - 4  disposed beneath the insulation layer  91 - 3 . 
     The first rigid substrate  800 - 2  may include pattern layers  82 - 1  and  82 - 2  disposed on the flexible substrate  800 - 1  (for example, the pattern layer  82 - 3 ), an insulation layer  91 - 1  interposed between the pattern layers  82 - 1  and  82 - 2 , and an insulation layer  91 - 2  interposed between the flexible substrate  800 - 1  (for example, the pattern layer  82 - 3 ) and the first rigid substrate  800 - 2  (for example, the pattern layer  82 - 2 ). 
     The second rigid substrate  800 - 3  may include pattern layers  82 - 5  and  82 - 6  disposed beneath the flexible substrate  800 - 1  (for example, the pattern layer  82 - 4 ), an insulation layer  91 - 4  interposed between the flexible substrate  800 - 1  (for example, the pattern layer  82 - 4 ), and an insulation layer  91 - 5  interposed between the pattern layers  82 - 5  and  82 - 6 . 
     The insulation layer  91 - 3  of the board  800  may be a flexible insulation layer, for example, a polyimide layer capable of being flexibly bent. 
     Each of the insulation layers  91 - 1 ,  91 - 2 ,  91 - 4  and  91 - 5  of the board  800  may be a rigid insulation or a prepreg layer, which has a greater strength or hardness than the flexible insulation layer. 
     For example, each of the pattern layers  82 - 1  to  82 - 6  may alternatively be referred to as a copper foil, a conductive layer or a conductive pattern, and each of the insulation layers  91 - 1  to  91 - 5  may alternatively be referred to as an insulation barrier or an insulation film. 
     Referring to  FIG.  5   , although the number of pattern layers of the flexible substrate  800 - 1  is two and the number of pattern layers of each of the first and second rigid substrates  800 - 2  and  800 - 3  is two, the disclosure is not limited thereto. In another embodiment, the number of pattern layers of the flexible substrate  800 - 1  and the number of pattern layers of each of the first and second rigid substrates  800 - 2  and  800 - 3  may be one or more. 
     The cover layers of the board  800  may include a cover layer  81   a  disposed on the pattern layer  82 - 1  of the first rigid substrate  800 - 2 , a cover layer  81   b  disposed on the pattern layer  82 - 6  of the second rigid substrate  800 - 3 , a cover layer  92 - 1  disposed on the pattern layer  82 - 3  of the flexible substrate  800 - 1  of the third region  803 , and a cover layer  92 - 2  disposed beneath the pattern layer  82 - 4  of the flexible substrate  800 - 1  of the third region  803 . Each of the cover layers of the board  800  may be made of an insulation material, for example, a solder resist material. 
     Furthermore, the board  800  may include a via adapted to conductively connect two pattern layers to each other, among the pattern layers  82 - 1  to  82 - 6  of the flexible substrate  800 - 1  and the first and second rigid substrates  800 - 2  and  800 - 3 . Here, the via may alternatively be referred to as a contact or a contact via. 
     For example, the board  800  may include at least one via  93 - 4 , adapted to conductively connect the pattern layers  82 - 1  to  82 - 6  of the flexible substrate  800 - 1  to each other, and at least one via  93 - 1  to  93 - 4 , adapted to conductively connect two of the pattern layers  82 - 1  to  82 - 6  of the first and second rigid substrates  800 - 2  and  800 - 3  to each other. 
     A cavity  31  in the board  800  may expose the pattern layer  82 - 6  of the board  800  from a second surface  11   b  of the second region  802  of the board  800 . Here, the cavity  31  may alternatively be referred to as a recess. 
     The pattern layer  82 - 6  may include a “ground layer”, or may alternatively be referred to as a “ground layer” or an “earth layer”. 
     The portion of the ground layer  82 - 6  that is exposed through the cavity  31  may form the bottom surface of the cavity  31  in the second board  802 . 
     The holder  600  may be disposed on the first region  801 , and the lens moving unit  100  may be disposed or mounted on the holder  600  disposed on the board  800 . 
     The connector  840  may be disposed on the second region (or the “second board”)  802  of the board  800 . For example, the connector  840  may be disposed on one surface of the second region  802  of the board  800 . The cavity  31  may be formed in the outer surface of the second region  802  of the board  800 , and may expose the ground layer from the other surface of the second region  802 . 
     The connector  840 , the second region (or the second board)  802  of the board  800 , at least a portion of the noise-blocking unit  70  and the reinforcing member  85  may together constitute a “connector” unit. 
     For example, the holder  600  and the lens moving unit  100  may be disposed on the first surface  11   a  of the first region  801  of the board  800 , and the connector  840  may be disposed on the first surface  11   a  of the second region  802  thereof. 
     The terminals of the lens moving unit  100  may be conductively connected to at least one of the pattern layers (for example,  82 - 1  to  82 - 6 ) of the first region  801  of the board  800 , and the terminals of the connector  840  may be conductively connected to at least one of the pattern layers  82 - 1  to  82 - 6  of the second region  802  of the board  800 . 
     For example, the terminals of the lens moving unit  100  may be conductively connected to the pattern layers  82 - 3  and  82 - 4  of the flexible substrate  800 - 1  of the first region  801 , and the terminals of the connector  840  may be conductively connected to the pattern layers  82 - 3  and  82 - 4  of the flexible substrate  800 - 1  of the second region  802  of the board  800 . The terminals of the lens moving unit  100  may be conductively connected to the terminals of the connector  840  via the flexible substrate  800 - 1 . 
     The noise-blocking unit  70  may be disposed beneath the second region  802  of the board  800 . 
     Furthermore, the noise-blocking unit  70  may be disposed at both upper and lower portions of the flexible substrate  800 - 1  of the third region  803  of the board  800 . The noise-blocking unit  70  may alternatively be referred to as a noise-blocking layer, an “EMI (Electro Magnetic Interference)-blocking unit”, an EMI-shielding unit, an EMI film or an EMI tape. 
     The noise-blocking unit  70  may include a first noise-blocking portion  71  and a second noise-blocking portion  72 . 
     The first noise-blocking portion  71  may be disposed beneath the second region  802  and the third region  803  of the board  800 . For example, the first noise-blocking portion may include a first portion (or a first region)  71   a , which is disposed in the cavity  31  in the second region  802  of the board  800 , and a second portion (or a second region)  71   b , which is disposed beneath the flexible substrate  800 - 1  of the third region  803  of the board  800 . 
     The second noise-blocking portion  72  may be disposed on the third region  803  of the board  800 . 
     The noise-blocking unit  70  may further include a portion that is disposed on the upper surface and/or the lower surface of the first region  803  of the board  800 . 
     The second portion  71   b  of the first noise-blocking portion  71  may be disposed or formed only on a portion of the third region (or the connecting board)  803 . 
     The first noise-blocking portion  71  may further include a third portion  71   c , which is disposed between the first portion  71   a  and the second portion  71   b  so as to connect the first portion  71   a  to the second portion  71   b.    
     For example, the third portion  71   c  may be disposed on the lower surface (or the cover layer  81   b ) of the second region  802  of the board  800 , which connects a fourth inner surface  31   d  of the cavity  31  to a fourth outer surface  5   d  of the second region  802  of the board  800 . 
     The reinforcing member  85  may be disposed beneath the second region (or the “second board”)  802  of the board  800 . 
     For example, the reinforcing member  85  may be disposed beneath the first portion  71   a  of the first noise-blocking portion  71 , which is disposed beneath the second region  802  of the board  800 . 
     For example, the reinforcing member  85  may be disposed above the cavity  31  in the second board  802  and on the upper surface of the second board  802 . 
     The reinforcing member  85  may be made of conductive material having high thermal conductivity, for example, metal. Although the reinforcing member  85  may be made of, for example, stainless steel, aluminum or the like, the disclosure is not limited thereto. 
     The reinforcing member  85  may be conductively connected to the ground terminal of the board  300  so as to serve as a ground for protecting the camera module from electrostatic discharge (ESD). 
     The adhesive  83  may be disposed between the reinforcing member  85  and the first noise-blocking portion  71 . 
     For example, the adhesive  83  may be disposed between the first portion  71   a  of the first noise-blocking portion  71  and the reinforcing member  85  so as to fix or attach the reinforcing member  85  to the second region  802  of the board  800 . 
     Referring to  FIG.  3   , although the upper surface of the reinforcing member  85  may be spaced apart from the lower surface of the second board  802  (for example, the lower surface of the cover layer  81   b ), the disclosure is not limited thereto. In another embodiment, the upper surface of the reinforcing member  85  may be in contact with the lower surface of the second board  802  (for example, the lower surface of the cover layer  81   b ). 
     A portion of the adhesive  83  may be disposed in the cavity  31  in the second board. 
     The second region (or the second board)  802  of the board  800  according to the embodiment may have therein the cavity  31  having an inlet through which a portion of the pattern layer (for example,  82 - 6 , see  FIG.  5   ) is exposed. 
     Here, the region of the pattern layer  82 - 6  that is exposed through the cavity  31  may serve as a ground layer for grounding the board  800 , or may be conductively connected to the ground of the board  800 . 
     The region of the pattern layer  82 - 6  that is exposed through the cavity  31  may be conductively connected to the ground pin or the terminal of the connector  840 . 
     For example, the cavity  31  may be formed by cutting away a portion of the cover layer  81   b  of the second region  802  of the board  800 , and the lower surface of a portion of the pattern layer (for example,  82 - 6 , see  FIG.  5   ) of the second region  802  may be exposed through the cavity  31 . 
     The first noise-blocking portion  71  may be disposed in the cavity  31  in the second region  802  of the board  800 . At least a portion of the periphery of the first noise-blocking portion  71  may be disposed in the cavity  31 . 
     For example, the first portion  71   a  of the first noise-blocking portion  71  may be disposed in the cavity  31  in the second region  802  of the board  800 . 
     The adhesive  83  may be disposed on the first noise-blocking portion  71  disposed in the cavity  31 , and the reinforcing member  85  may be disposed on the adhesive  83 . 
     By disposing the first portion  71   a  of the first noise-blocking portion  71  in the cavity  31  in the second region  802  of the board  800  and then disposing the adhesive  83  on the first portion  71   a  of the first noise-blocking portion  71  disposed in the cavity  31 , the embodiment is able to block or reduce the noise generated by the camera module and to reduce the resistance between the reinforcing member  85  and the board  800  (for example, the ground (GND)). 
       FIGS.  2 A to  2 D  illustrate a procedure of coupling the noise-blocking unit  71 , the adhesive  83  and the reinforcing member  85  to the board  800 .  FIG.  3    is a cross-sectional view taken along line A-B in  FIG.  2 D .  FIG.  4    is a cross-sectional view taken along line C-D in  FIG.  2 D . 
       FIGS.  2 A to  2 D  are bottom views illustrating the second region  802  and the third region  803  of the board  800 .  FIGS.  3  and  4    are cross-sectional views illustrating states in which  FIG.  2 D  is rotated to 180 degrees. 
     Referring to  FIG.  2 A , the cavity  31  is formed in the second surface of the second region  802  of the board  800  so as to expose the pattern layer (or the ground layer)  82 - 6  from the second surface. The exposed ground layer is not limited to the shape shown in  FIG.  2 A  (for example, an  1 ′ shape), and may have any of various polygonal shapes (for example, a rectangular shape, a triangular shape or the like) or a circular shape. 
     Referring to  FIG.  2 A , the left and lower end of the pattern layer  82 - 6  may not be exposed through the cavity  31 . The left and lower end of the pattern layer  82 - 6  may be provided with a ground layer (for example, a “first ground layer” or a “digital ground layer”), which is exposed through the cavity  31 , and another ground layer (for example, a “second ground layer” or an “analog ground layer”), which is separated or spaced apart from the first ground layer. 
     In another embodiment, the second ground layer may also be exposed through the cavity  31 , and the first noise-blocking portion  71  and the adhesive  83  may be disposed between the exposed ground layer and the reinforcing member  85 . 
     For example, the cavity  31  may be formed so as to expose the lower surface of the pattern layer  82 - 6  by removing a portion of the cover layer  81   b  of the second region  802  of the board  800 . 
     The second region  802  of the board  800  may have four outer surfaces  5   a  to  5   d.    
     For example, the plan view of the second region  802  of the board  800  may have a rectangular shape having four sides  5   a  to  5   d.    
     Each of the distances d 1  and d 2  between the outer surfaces (or sides)  5   a  to  5   d  of the second region  802  and the cavity  31  may range from 0.3 mm to 0.5 mm. 
     The depth H of the cavity  31  may be equal to the thickness of the cover layer  81   b  of the board  800 . For example, the depth H of the cavity  31  may be the length of the lens or the lens barrel  400  of the lens moving unit  100 . For example, the depth H may range from 21 μm to 24 μm. For example, the depth H may be 23 μm. 
     Referring to  FIG.  2 B , the portion  71   a  of the first noise-blocking portion  71  is disposed in the cavity  31  in the second region  802  of the board  800 . 
     The first noise-blocking portion  71  may include the first portion  71   a  disposed in the cavity  31  in the second region  802  of the board  800  and the second portion  71   b  disposed beneath the third region  803  of the board  800 . Furthermore, the first noise-blocking portion  71  may include the third portion connecting the first portion to the second portion. 
     For example, the second portion  71   b  of the first noise-blocking portion  71  may be disposed on the connecting board  803 , and the end of the first portion  71   a  may be disposed in the cavity  31  in the second board  802 . For example, a portion of the end of the first portion  71   a  may be disposed in the cavity  31 . 
     The first portion  71   a  of the first noise-blocking portion  71  may be disposed beneath the pattern layer  82 - 6  of the second region  802  of the board  800  that is exposed through the cavity  31 . 
     The cavity  31  in the board  800  may include the inner surfaces  31   a  to  31   d  and the bottom surface. Here, the inner surface of the cavity  31  may alternatively be referred to as a “side wall”, a “side surface” or an “inner wall”. 
     For example, the first inner surface  31   a  and the second inner surface  31   b  may face each other, and the third inner surface  31   c  and the fourth side surface  31   d  may face each other. The third inner surface  31   c  may connect one end of the first inner surface  31   a  to one end of the second inner surface  31   b , and the fourth inner surface  31   d  may connect the other end of the first inner surface  31   a  to the other end of the second inner surface  31   b.    
     The bottom surface of the cavity  31  may be one surface (for example, the lower surface) of the pattern layer  82 - 6  of the second region  802  of the board  800  that is exposed. The lower surface of the first portion  71   a  of the first noise-blocking portion  71  may be in contact with the bottom surface of the cavity  31 . 
     For example, the first portion  71   a  of the first noise-blocking portion  71  may include a first surface  21   a  (or a “first side surface”) that faces the first inner surface  31   a  of the cavity  31 , a second surface  21   b  (or a “second side surface”) that faces the second inner surface  31   b  of the cavity  31 , and a third surface  21   c  (or a “third side surface”) that faces the third inner side surface  31   c  of the cavity  31 . 
     The side surface of the first portion  71   a  of the first noise-blocking portion  71  may be positioned in the cavity  31  in the second region  802  of the board  800 , and may be spaced apart from the second surface  11   b  of the second region  802  of the board  800 . 
     For example, the first surface  21   a , the second surface  21   b  and the third surface  21   c  of the first portion  71   a  of the first noise-blocking portion  71  may be positioned in the cavity  31  in the second region  802 , and may be spaced apart from the second surface  11   b  of the second region  802  of the board  800 . 
     The vertical length of the second portion  71   b  of the first noise-blocking portion  71  may be greater than the vertical length L 3  of the first portion  71   a . The reason for this is to improve the effect of blocking EMI in the third region  803  of the board  800 . 
     The length (or width) L 3  of one side of the first noise-blocking portion  71  may be less than the length (or width) L 1  of one side of the cavity  31  in the second board  802 . 
     For example, the length of a first long side that is positioned at one side of the cavity  31  of the second board  802  may be greater than the length of a second long side that is positioned at the other side of the cavity  31 . For example, the first long side and the second long side may face each other. 
     For example, the length of a first short side that is positioned at one side of the cavity  31  in the second board  802  may be greater than the length of a second short side that is positioned at the other side of the cavity  31 . For example, the first short side and the second short side may face each other. 
     For example, the length L 3  of a short side of the first noise-blocking portion  71  may be less than the length L 1  of a long side of the cavity  31  in the second board  802 . 
     The vertical length L 3  of the first portion  71   a  of the first noise-blocking portion  71  may be less than the vertical length L 1  of the cavity  31  in the board  800  (L 3 &lt;L 1 ). 
     The horizontal length L 4  of the first portion  71   a  of the first noise-blocking portion  71  may be less than the horizontal length L 2  of the cavity  31  in the board  800  (L 4 &lt;L 2 ). 
     For example, the vertical direction may be the direction of Line A-B in  FIG.  2 D  or the y-axis direction in  FIG.  1   , which is perpendicular to the optical-axis direction of the lens moving unit  100 . 
     Alternatively, the vertical direction may be a direction that is perpendicular to the optical-axis direction of the lens moving unit  100  (or the axis of the image sensor  8100 ) and extends from the first outer surface  5   a  to the second outer surface  5   b  of the second region  802  of the board  800 . 
     Alternatively, the vertical direction may be a direction perpendicular to a direction that extends from the image sensor  810  to the connector  840 . 
     For example, the horizontal direction may be the direction of line C-D in  FIG.  2 D  or the x-axis direction in  FIG.  1   , which is perpendicular to the optical-axis direction of the lens moving unit  100 . 
     For example, the vertical direction may be a direction that extends from the first inner surface  31   a  to the second inner surface  31   b  of the cavity  31  in the board  800 , and the horizontal direction may be a direction that extends from the third inner surface  31   c  to the fourth inner surface  31   d  of the cavity  31  of the board  800 . 
     For example, the area of the lower surface (or the upper surface) of the first portion  71   a  of the first noise-blocking portion  71  disposed in the cavity  31  in the board  800  may be smaller the area of the bottom surface of the cavity  31  in the board  800  (or the area of the exposed lower surface of the pattern layer  82 - 6 ). 
     The distance d 3  between the first surface  21   a  of the first portion  71   a  of the first noise-blocking portion  71  and the first outer surface  5   a  of the second region  802  of the board  800  or the distance d 3  between the second surface  21   b  of the first portion  71   a  of the first noise-blocking portion  71  and the second outer surface  5   b  of the second region  802  of the board  800  may be greater than the distance d 1  (d 3 &gt;d 1 ). 
     The distance d 4  between the third surface  21   c  of the first portion  71   a  of the first noise-blocking portion  71  and the third outer surface  5   c  of the second region  802  of the board  800  may be greater than the distance d 2  (d 4 &gt;d 2 ). 
     Because the distance d 3  is greater than the distance d 1  (d 3 &gt;d 1 ) and the distance d 4  is greater than the distance d 2  (d 4 &gt;d 2 ), the first portion  71   a  of the first noise-blocking portion  71  may be disposed in the cavity  31 . 
     In  FIG.  2 B , the distance d 4  may be greater than the distance d 3  (d 4 &gt;d 3 ). For example, the distance d 3  may range from 0.6 mm to 0.8 mm, and the distance d 4  may range from 0.9 mm to 1.1 mm. In another embodiment, the distance d 4  may be equal to the distance d 3  (d 4 =d 3 ) or may be less than the distance d 3  (d 4 &lt;d 3 ). 
     Referring to  FIG.  3   , the first to third surfaces  21   a  to  21   c  of the first portion  71   a  of the first noise-blocking portion  71  may be spaced apart from the first to third inner surfaces  31   a  to  31   c  of the cavity  31  in the board  800 . 
     For example, the first surface  21   a  may be spaced apart from the first inner surface  31   a  of the cavity  31 , the second surface  21   b  may be spaced apart from the second inner surface  31   b  of the cavity  31 , and the third surface  21   c  may be spaced apart from the third inner surface  31   c  of the cavity  31 . 
     The distance between the third surface  21   c  of the first noise-blocking portion  71  and the third surface  31   c  of the cavity  31  may be different from the distance between the first surface  21   a  of the first noise-blocking portion  71  and the first inner surface  31   a  of the cavity  31  and/or the distance between the second surface  21   b  of the first noise-blocking portion  71  and the second inner surface  31   b  of the cavity  31 . 
     For example, the distance between the third surface  21   c  of the first noise-blocking portion  71  and the third surface  31   c  of the cavity  31  may be greater than the distance between the first surface  21   a  and the first inner surface  31   a  of the cavity  31  and/or the distance between the second surface  21   b  and the second inner surface  31   b  of the cavity  31 . 
     For example, the distance between the inner surfaces  31   a  to  31   d  of the cavity  31  and the end surfaces (for example,  21   a  to  21   c ) of the first noise-blocking portion  71  may be greater than the distance between the inner surfaces  31   a  to  31   d  of the cavity  31  and the end surfaces of the adhesive  83 . The reason for this is to increase the surface area of the adhesive  83  and thus to increase the adhesive force between the reinforcing member  85  and the second board  802 . 
     For example, although the horizontal (or vertical) distance between the inner surfaces  31   a  to  31   d  of the cavity  31  and the end surfaces of the reinforcing member  85  may be greater than the horizontal (or vertical) distance between the inner surfaces  31   a  to  31   d  of the cavity  31  and the end surfaces (for example,  21   a  to  21   c ) of the first noise-blocking portion  71 , the disclosure is not limited thereto. In another embodiment, the former may be equal to or less than the latter. 
     For example, although the horizontal (or vertical) distance between the inner surfaces  31   a  to  31   d  of the cavity  31  and the end surfaces of the reinforcing member  85  may be greater than the horizontal (or vertical) distance between the inner surfaces  31   a  to  31   d  of the cavity  31  and the end surfaces of the adhesive  83 , the disclosure is not limited thereto. In another embodiment, the former may be equal to or less than the latter. 
     Referring to  FIGS.  2 C and  2 D , the reinforcing member  85  is attached to the first portion  71   a  of the first noise-blocking portion  71  disposed in the cavity  31  via the adhesive  83 . 
     For example, the reinforcing member  65  may be fixed or attached to the first portion  71   a  of the first noise-blocking portion  71  in such a way as to apply or form the adhesive  83  to one surface (for example, the upper surface) of the reinforcing member  85  and then to press the reinforcing member  85  having thereon the adhesive  83  to the first portion  71   a  of the first noise-blocking portion  71  using a hot press. By virtue of the pressing operation, the upper surface of the reinforcing member  85  may come into contact with the second surface (or the lower surface)  11   b  of the second region  802  of the board  800 . 
     The adhesive  83  may be conductive adhesive, or may include conductive adhesive (for example, conductive particles). For example, the adhesive  83  may be FGBF-700. 
     The side surface of the adhesive  83  may be spaced apart from the second surface  11   b  of the second region  802  of the board  800 . 
     The vertical length L 5  of the adhesive  83  may be less than the vertical length L 1  of the cavity  31  in the board  800  (L 5 &lt;L 1 ). The horizontal length L 6  of the adhesive  83  may be less than the horizontal length L 2  of the cavity  31  in the board  800  (L 6 &lt;L 2 ). 
     The vertical length L 5  of the adhesive  83  may be greater than or equal to the vertical length L 3  of the first portion  71   a  of the first noise-blocking portion  71 . 
     The horizontal length L 6  of the adhesive  83  may greater than or equal to the horizontal length L 4  of the first portion  71   a  of the first noise-blocking portion  71 . 
     The distance d 5  between the first side surface of the adhesive  83  and the first outer surface  5   a  of the second region  802  of the board  800  or the distance d 5  between the second side surface of the adhesive  83  and the second outer surface  5   b  of the second region  802  of the board  800  may be greater than the distance d 1  (d 5 &gt;d 1 ). In another embodiment, the distance d 5  may be equal to the distance d 1  (d 5 =d 1 ). 
     The distance d 6  between the third side surface of the adhesive  83  and the third outer surface  5   c  of the second region  802  of the board  800  may be greater than the distance d 2  (d 6 &gt;d 2 ). In another embodiment, the distance d 6  may be equal to the distance d 2  (d 6 =d 2 ). 
     For example, each of the distance d 5  and the distance d 6  may range from 0.5 mm to 0.6 mm. 
     d 1 :d 3  may range from 1:1.2 to 1:2.65, and d 2 :d 4  may range from 1:1.8 to 1:3.65. 
     d 1 :d 5  may range from 1:1 to 1:2, and d 2 :d 6  may range from 1:1 to 1:2. 
     If d 3 /d 1  is less than 1.2, because the difference between the horizontal length of the first portion  71   a  of the first noise-blocking portion  71  and the horizontal length of the cavity  31  is very small, a process margin required to dispose the first portion  71   a  of the first noise-blocking portion  71  is insufficient, and the first noise-blocking portion  71  may escape outwards from the cavity  31 , with the result that the resistance value between the reinforcing member  85  and the ground of the board  800  may increase to 1 ohm or higher. 
     If d 3 /d 1  is greater than 2.65, the surface area of the first portion  71   a  of the first noise-blocking portion  71  may decrease, and thus the ability to block noise generated by the camera module may be deteriorated, thereby deteriorating the RF sensitivity of the optical device on which the camera module is mounted. 
     If d 5 /d 1  and/or d 6 /d 2  is less than 1, the horizontal length of the adhesive  83  may become greater than the horizontal length of the cavity  31 , and the adhesive  83  may thus be disposed on the lower surface of the second region  802  outside the cavity  31 , with the result that the resistance value between the reinforcing member  85  and the ground of the board  800  may increase to 1 ohm or higher. 
     If d 5 /d 1  or d 6 /d 2  is greater than 2, because the surface area of the adhesive  83  decreases, the adhesive force between the reinforcing member  85  and the board  800  may decrease, and thus the reinforcing member  85  may easily escape the board  800 . 
     Referring to  FIG.  2 D , the distance d 7  between the first outer surface  5   a  (or the first outer surface  6   b ) of the second region  802  of the board  800  and the first side surface (or second side surface) of the reinforcing member  85  may be less than the distance d 1  (d 7 &lt;d 1 ). The distance d 8  between the third outer surface  5   c  of the second region  802  of the board  800  and the third side surface of the reinforcing member  85  may be less than the distance d 2  (d 8 &lt;d 2 ). 
     For example, each of the distances d 1  to d 8  may be the shortest distance between two planes parallel to the two surfaces in question. 
     The thickness (for example, the thickness of the first portion  71   a ) T 1  of the first noise-blocking portion  71  may be less than the depth H of the cavity  31  in the board  800  (T 1 &lt;H). Here, the thickness of the first noise-blocking portion  71  may be the length of the first noise-blocking portion  71  in the optical-axis direction. 
     For example, the thickness (the thickness of the first portion  71   a ) T 1  of the first noise-blocking portion  71  may range from 12 μm to 18 μm. 
     The side surfaces of the first portion  71   a  of the noise-blocking portion  71  may be positioned farther than the inner surfaces  31   a  to  31   d  of the cavity  31  from the outer surfaces  5   a  to  5   c  of the second region  802  of the board  800 . 
     The side surfaces of the adhesive  83  may be positioned farther than the inner surfaces  31   a  to  31   d  of the cavity  31  from the outer surfaces  5   a  to  5   c  of the second region  802  of the board  800 . 
     Furthermore, the outer surfaces of the reinforcing member  85  may be positioned closer than the side surfaces  31   a  to  31   d  of the cavity  31  in the board  300  to the outer surfaces  5   a  to  5   c  of the second region  802  of the board  800 . 
     The surface area of the first portion  71   a  of the noise-blocking portion  71 , which overlaps the second region  802  of the board  800  in the optical-axis direction of the lens moving unit  100  may be smaller than that of the bottom surface of the cavity  31 . 
     Furthermore, the surface are of the adhesive  83  that overlaps the second region  802  of the board  800  in the optical-axis direction may be smaller than that of the bottom surface of the cavity  31  in the board  800 . 
     The adhesive  83  may include adhesive resin and conductive particles. 
       FIG.  6    illustrates an embodiment of the adhesive  83 . 
     Referring to  FIG.  6   , the adhesive  83  may include resin  83   b  and conductive particles  83   a . The conductive particles  83   a  of the adhesive  83  are not depicted in  FIG.  3   . 
     Although the resin  83   b  may be a nonconductive resin layer, the disclosure is not limited thereto. In another embodiment, the resin  83   b  may be a conductive resin layer. For example, the resin  83   b  may be FGBF-700. 
     For example, the diameter of the conductive particle  83   a  may be greater than the thickness of the noise-blocking layer  71 . Alternatively, the diameter of the conductive particle  83   a  may be greater than or equal to the depth H of the cavity  31 . 
     For example, the thickness T 2  of the adhesive  83  may be greater than the thickness T 1  of the first noise-blocking portion  71  (T 2 &gt;T 1 ). For example, the thickness T 2  of the adhesive  83  may range from 24 μm to 26 μm. For example, the thickness T 2  of the adhesive  83  may be the maximum thickness of the adhesive, in consideration of the diameter of the conductive particles  83   a.    
     The conductive particles  83   a  of the adhesive  83  may come into contact with the exposed pattern layer  82 - 6  of the second region  802  of the board  800  through the first noise-blocking portion  71  (for example, the first portion  71   a ). 
     The reinforcing member  850  may be conductively connected to the pattern layer  82 - 6  of the second region  802  of the board  800 . 
     The thickness T 3  of the reinforcing member  85  may be less than the overall thickness of the board  800  but greater than the thickness of the flexible substrate  800 - 1  and the thickness of the adhesive  83 . For example, the thickness of the reinforcing member  85  may range from 90 μm to 120 μm. 
     The thickness T 3  of the reinforcing member  85  may be greater than the thickness T 1  of the first noise-blocking portion  71  and the thickness T 2  of the adhesive  83  (T 3 &gt;T 1 , T 2 ). 
     Referring to  FIGS.  3  and  4   , the upper surface of the reinforcing member  85  may be in contact with the second surface (or the lower surface)  11   b  of the second region  802  of the board  800 . For example, the upper surface of the periphery of the reinforcing member  85  may be in contact with the second surface (or the lower surface)  11   b  of the second region  802  of the board  800 . 
     In another embodiment, the upper surface of the periphery of the reinforcing member  85  may be spaced apart from the second surface  11   b  of the second region  802  of the board  800 . 
       FIG.  7    illustrates the case in which the size of an adhesive  30  and the size of an EMI film  20  are larger than the size of a groove  10 - 1  in a board  10 . 
     In this case, because the size of the EMI film  20  and the size of the adhesive  30  are larger than the size of the groove  10 - 1  in the board  10  through which a ground pattern layer  10   a  of the board  10  is exposed, when the EMI film  20  is attached to the lower surface of the board  10  and a reinforcing member  40  having the adhesive  30  applied thereto is attached to the EMI film  20 , a void or a lifting phenomenon may occur between the ground pattern layer  10   a  of the board  10 , which is exposed through the groove  10 - 1 , and the reinforcing member  40 , as illustrated in  FIG.  7   . 
     Furthermore, because the void is created between the adhesive  20  and the ground pattern layer  10   a , the conductive particles of the adhesive  30  may have difficulty coming into contact with the ground pattern layer  10   a  through the EMI film  20  even when pressed using a hot press, whereby the resistance (for example, electrical resistance) between the ground of the board  10  and the reinforcing member  40  may increase. For example, in the case of  FIG.  7   , the resistance between the ground of the board  10  and the reinforcing member  40  may be 1 ohm or higher. 
     In contrast, the embodiment of the present invention is able to block or reduce EMI noise generated from the camera module  200  by positioning the first noise-blocking portion  71  between the pattern layer  82 - 6  that is exposed through the cavity  31  in the second region  802  of the board  800  and the reinforcing member  85 . In addition, since the first noise-blocking portion  71  and the adhesive  83  are disposed in the cavity  31  such that the first noise-blocking portion  71  and the adhesive  83  are in close contact with the pattern layer  82 - 6 , which is exposed through the cavity  31 , it is possible to reduce the electrical resistance between the pattern layer  82 - 6  of the board  800 , which is used as the ground, and the reinforcing member  85 , and it is thus possible to use the reinforcing member  85  as the ground of the board  800 . Specifically, according to the embodiment, the electrical resistance between the pattern layer  82 - 6  of the board  800  and the reinforcing member  85  may be lower than 1 ohm. 
     A camera module according to another embodiment may further include a noise-blocking portion, which is disposed at at least one of the first surface  11   a  and the second surface  11   b  of the first region  801  and the first surface  11   a  of the second region  802  of the board  800 . 
       FIG.  8    is a perspective view of a camera module according to another embodiment of the present invention. 
     Referring to  FIG.  8   , the camera module  200  may include a lens or a lens barrel  400 , the lens moving unit  100 , an adhesive member  612 , a filter  610 , a holder  600 , a board  800 , an image sensor  810 , a motion sensor  820 , a controller  830 , a connector  840 , a noise-blocking unit  70 , an adhesive (not shown) and a reinforcing member  85 . The same numerals as those in  FIG.  1    indicate the same components, and descriptions of the same components will be made briefly or omitted. 
     The description regarding the noise-blocking unit  70 , which has been made with reference to  FIG.  1   , may also be applied to the noise-blocking unit  70  shown in  FIG.  8   , the description regarding the adhesive  83 , made with reference to  FIG.  1   , may also be applied to the noise-blocking unit (not shown) in  FIG.  8   , and the description regarding the reinforcing member, made with reference to  FIG.  1   , may also be applied to the reinforcing member  85  shown in  FIG.  8   . 
     The lens or lens barrel  400  may be mounted on the lens moving unit  100 . 
     The lens moving unit  100  may be referred to as a “sensing unit”, an “imaging unit”, a “VCM (Voice Coil Motor)” or a “lens moving apparatus”. 
     For example, the lens moving unit  100  may be an AF lens moving unit or an OIS lens moving unit. Here, the AF lens moving unit may be a unit capable of performing only an autofocus function, and the OIS lens moving unit may be a unit capable of performing both an autofocus function and an OIS (Optical Image Stabilizer) function. 
     For example, the lens moving unit  100  may be an AF lens moving device. The AF lens moving device may include a housing, a bobbin disposed in the housing, a coil disposed at the bobbin, a magnet disposed at the housing, at least one elastic member coupled both to the bobbin and to the housing, and a base disposed under the bobbin (and/or the housing). The elastic member may include, for example, the above-described upper and lower elastic members. 
     The coil may be provided with a drive signal (for example, driving current), and the bobbin may be moved in the optical-axis direction using the electromagnetic force resulting from the interaction between the coil and the magnet. In another embodiment, the coil may be disposed at the housing, and the magnet may be disposed at the bobbin. 
     For AF feedback operation, the AF lens moving device may further include a sensing magnet disposed at the bobbin, an AF position sensor (for example, a hall sensor) disposed at the housing, and a circuit board, at which the AF position sensor is disposed and which is disposed or mounted on the housing and/or the base. In another embodiment, the AF position sensor may be disposed at the bobbin, and the sensing magnet may be disposed at the housing. 
     The circuit board may be conductively connected to the coil and the AF position sensor. A drive signal may be provided to the coil and the AF position sensor via the circuit board, and the output of the AF position sensor may be transmitted to the circuit board. 
     The camera module according to another embodiment may include a housing, which is coupled to the lens or lens barrel  400  so as to hold the lens or lens barrel  400 , in place of the lens moving unit  100 , and the housing may be coupled or attached to the upper surface of the holder  600 . The housing, which is attached or fixed to the holder  600 , may be immovable, and may be maintained in the position in the state of being attached to the holder  600 . 
     For example, the lens moving unit  100  may be an OIS lens moving unit. 
     The OIS lens moving unit may include a housing, a bobbin disposed in the housing so as to mount a lens or lens barrel  400  thereon, a first coil disposed at the bobbin, a magnet disposed at the housing so as to face the first coil, at least one upper elastic member coupled both to the upper portion of the bobbin and to the upper portion of the housing, at least one lower elastic member coupled both to the lower portion of the bobbin and to the lower portion of the housing, a second coil disposed under the bobbin (and/or the housing), a circuit board disposed under the second coil, and a base disposed under the circuit board. 
     The OIS lens moving unit may further include a cover member, which is coupled to the base so as to define a space for accommodating the components of the lens moving unit therein in conjunction with the base. 
     The OIS lens moving unit may further include a support member, which conductively connects the circuit board to the upper elastic member and supports the housing with respect to the base. Each of the first coil and the second coil may be conductively connected to the circuit board  250 , and may receive a drive signal (drive current) from the circuit board. 
     For example, the upper elastic member may include a plurality of upper springs, and the support member may include support members connected to the upper springs. The first coil may be conductively connected to the circuit board via the upper springs and the support members. The circuit board may include a plurality of terminals, and some of the plurality of terminals may be conductively connected to the first coil and/or the second coil. 
     By virtue of the electromagnetic force resulting from the interaction between the first coil and the magnet, the bobbin and the lens or lens barrel  400  coupled to the bobbin is movable in the optical-axis direction such that the displacement of the bobbin in the optical-axis direction is controlled, thereby realizing an AF operation. 
     Furthermore, by virtue of the electromagnetic force resulting from the interaction between the second coil and the magnet, the housing is movable in a direction perpendicular to the optical-axis direction, thereby realizing handshake correction or OIS operation. 
     For AF feedback operation, the OIS lens moving unit may further include a sensing magnet disposed at the bobbin, and an AF position sensor (for example, a hall sensor) disposed at the housing. The OIS lens moving unit may further include a circuit board (not shown), which is disposed at the housing and/or the base and on which the AF position sensor is disposed or mounted. In another embodiment, the AF position sensor may be disposed at the bobbin, and the sensing magnet may be disposed at the housing. The OIS lens moving unit may further include a balancing magnet disposed at the bobbin so as to correspond to the sensing magnet. 
     The AF position sensor may output an output signal corresponding to the result of detection of variation in the intensity of the magnetic field of the sensing magnet due to movement of the bobbin. The AF position sensor may be conductively connected to the circuit board via the upper elastic member (or the lower elastic member) and/or the support member. The circuit board may provide a drive signal to the AF position sensor, and the output from the AF position sensor may be transmitted to the circuit board. The controller  830  may sense or detect the displacement of the bobbin using the output from the AF position sensor. 
     The holder  600  may be disposed under the lens moving unit  100  (for example, the base). The filter  610  may be mounted on the holder  600 , and the holder  600  may include a projection  500  on which the filter  610  is to be seated. 
     The adhesive member  612  may couple or attach the lens moving unit  100  (for example, the base) to the holder  600 . In addition to the attachment function described above, the adhesive member  6120  may serve to inhibit contaminants from entering the lens moving unit  100 . 
     The adhesive member  612  may be thermohardening adhesive (for example, thermohardening epoxy) or ultraviolet-hardening adhesive (for example, ultraviolet-hardening epoxy). 
     The filter  610  may serve to inhibit light within a specific frequency band that passes through the lens barrel  400  from being introduced into the image sensor  810 . The filter  610  may be, for example, an infrared-light-blocking filter, without being limited thereto. Here, the filter  610  may be oriented parallel to the X-Y plane. 
     The region of the holder  600  in which the filter  610  is mounted may be provided with a bore in order to allow the light that passes through the filter  610  to be introduced into the image sensor  810 . 
     The board  800  may be disposed under the holder  600 , and the image sensor  810  may be mounted on the board  600 . The image sensor  810  may be the region on which an image included in the light that passes through the filter  610  and is introduced thereinto is formed. 
     The board  800  may include, for example, various circuits, devices, and a controller in order to convert the image formed on the image sensor  810  into electrical signals and to transmit the electrical signals to external components. 
     The board  800  may be embodied as a board on which the image sensor may be mounted, on which a circuit pattern may be formed, and to which various devices may be coupled. The holder  600  may alternatively be referred to as a “sensor base”, and the board  800  may alternatively be referred to as a “circuit board”. 
     In another embodiment, some region of the board  800  may be embodied as being included in the lens moving unit  100  or as not being included in the lens moving unit  100 . 
     The image sensor  810  may receive an image included in the light introduced through the lens moving unit  100 , and may convert the received image into an electrical signal. 
     The filter  610  and the image sensor  810  may be disposed so as to be spaced apart from each other in the state of facing each other in the optical-axis direction. 
     The motion sensor  820  may be mounted on the board  800 , and may be conductively connected to the controller  830  through the circuit pattern formed on the board  800 . 
     The motion sensor  820  may output rotational angular speed caused by motion of the camera module  200 . The motion sensor  820  may be embodied as a dual-axis or triple-axis gyro sensor or an angular speed sensor. 
     The controller  830  may be mounted on the board  800 , and may be conductively connected to the lens moving unit  100 . The controller  830  may provide the lens moving unit  100  with a signal for driving the AF coil, a signal for driving the OIS coil, a signal for driving the AF position sensor and/or a signal for driving the OIS (Optical Image Stabilization) position sensor. 
     Furthermore, the controller  830  may receive the output from the AF position sensor and/or the output from the OIS position sensor. Furthermore, the controller  830  may provide the AF coil with a signal for AF feedback operation using the output from the AF position sensor, and may provide the OIS coil with a signal for OIS feedback operation using the output from the OIS position sensor of the lens moving unit  100 . 
     The connector  840  may be conductively connected to the board  800 , and may have a port that is intended to be conductively connected to an external device. 
     The lens moving unit  100  according to the embodiment may be included in an optical instrument, which is designed to form the image of an object in a space using reflection, refraction, absorption, interference, diffraction or the like, which are characteristics of light, to extend eyesight, to record an image obtained through a lens or to reproduce the image, to perform optical measurement, or to propagate or transmit an image. For example, although the optical instrument according to the embodiment may be a mobile phone, cellular phone, smart phone, portable smart instrument, digital camera, laptop computer, digital broadcasting terminal, PDA (Personal Digital Assistant), PMP (Portable Multimedia Player), navigation device, or the like, the disclosure is not limited thereto. Furthermore, any device capable of taking images or photographs is possible. 
       FIG.  9    is a perspective view illustrating a portable terminal  200 A according to an embodiment.  FIG.  10    is a view illustrating the configuration of the portable terminal illustrated in  FIG.  9   . 
     Referring to  FIGS.  9  and  10   , the portable terminal  200 A (hereinafter referred to as a “terminal”) may include a body  850 , a wireless communication unit  710 , an audio/video (A/V) input unit  720 , a sensing unit  740 , an input/output unit  750 , a memory unit  760 , an interface unit  770 , a controller  780 , and a power supply unit  790 . 
     The body  850  illustrated in  FIG.  9    has a bar shape, without being limited thereto, and may be any of various types, such as, for example, a slide type, a folder type, a swing type, or a swivel type, in which two or more sub-bodies are coupled so as to be movable relative to each other. 
     The body  850  may include a case (e.g. a casing, housing, or cover) defining the external appearance of the terminal. For example, the body  850  may be divided into a front case  851  and a rear case  852 . Various electronic components of the terminal may be accommodated in the space defined between the front case  851  and the rear case  852 . 
     The wireless communication unit  710  may include one or more modules, which enable wireless communication between the terminal  200 A and a wireless communication system or between the terminal  200 A and a network in which the terminal  200 A is located. For example, the wireless communication unit  710  may include a broadcast-receiving module  711 , a mobile communication module  712 , a wireless Internet module  713 , a nearfield communication module  714 , and a location information module  715 . 
     The A/V input unit  720  serves to input audio signals or video signals, and may include, for example, a camera  721  and a microphone  722 . 
     The camera  721  may include the camera module  200  according to the embodiment illustrated in  FIG.  1  or  8   . As described above, since the camera module  200  is capable of improving EMI-noise-blocking performance, it is possible to improve the RF (Radio Frequency) sensitivity of the portable terminal  200 A. 
     The sensing unit  740  may sense the current state of the terminal  200 A, such as, for example, the opening or closing of the terminal  200 A, the location of the terminal  200 A, the presence of a user&#39;s touch, the orientation of the terminal  200 A, or the acceleration/deceleration of the terminal  200 A, and may generate a sensing signal to control the operation of the terminal  200 A. When the terminal  200 A is, for example, a slide-type cellular phone, the sensing unit  740  may sense whether the slide-type cellular phone is opened or closed. Furthermore, the sensing unit  740  may sense the supply of power from the power supply unit  790 , coupling of the interface unit  770  to an external device, and the like. 
     The input/output unit  750  serves to generate, for example, visual, audible, or tactile input or output. The input/output unit  750  may generate input data to control the operation of the terminal  200 A, and may display information processed in the terminal  200 A. 
     The input/output unit  750  may include a keypad unit  730 , a display module  751 , a sound output module  752 , and a touchscreen panel  753 . The keypad unit  730  may generate input data in response to input on a keypad. 
     The display module  751  may include a plurality of pixels, the color of which varies depending on the electrical signals applied thereto. For example, the display module  751  may include at least one among a liquid crystal display, a thin-film transistor liquid crystal display, an organic light-emitting diode, a flexible display and a 3D display. 
     The sound output module  752  may output audio data received from the wireless communication unit  710  in, for example, a call-signal reception mode, a call mode, a recording mode, a voice recognition mode, or a broadcast reception mode, or may output audio data stored in the memory unit  760 . 
     The touchscreen panel  753  may convert variation in capacitance, caused by a user&#39;s touch on a specific region of a touchscreen, into electrical input signals. 
     The memory unit  760  may temporarily store programs for the processing and control of the controller  780 , and input/output data (for example, telephone numbers, messages, audio data, stationary images, moving images and the like). For example, the memory unit  760  may store images captured by the camera  721 , for example, pictures or moving images. 
     The interface unit  770  serves as a path through which the lens moving unit is connected to an external device connected to the terminal  200 A. The interface unit  770  may receive power or data from the external component, and may transmit the same to respective constituent elements inside the terminal  200 A, or may transmit data inside the terminal  200 A to the external component. For example, the interface unit  770  may include a wired/wireless headset port, an external charger port, a wired/wireless data port, a memory card port, a port for connection to a device equipped with an identification module, an audio input/output (I/O) port, a video input/output (I/O) port, an earphone port and the like. 
     The controller  780  may control the general operation of the terminal  200 A. For example, the controller  780  may perform control and processing related to, for example, voice calls, data communication, and video calls. 
     The controller  780  may include a multimedia module  781  for multimedia playback. The multimedia module  781  may be embodied in the controller  780 , or may be embodied separately from the controller  780 . 
     The controller  780  may perform a pattern recognition process capable of recognizing writing input or drawing input carried out on a touch screen as a character and an image, respectively. 
     The power supply unit  790  may supply power required to operate the respective constituent elements upon receiving external power or internal power under the control of the controller  780 . 
     The features, configurations, effects and the like described above in the embodiments are included in at least one embodiment, but the invention is not limited only to the embodiments. In addition, the features, configurations, effects and the like exemplified in the respective embodiments may be combined with other embodiments or modified by those skilled in the art. Accordingly, content related to these combinations and modifications should be construed as falling within the scope of the disclosure. 
     INDUSTRIAL APPLICABILITY 
     The embodiments are applicable to a camera module and an optical device including the same, which are capable of improving performance of blocking EMI noise and of reducing the electrical resistance between the reinforcing member and a ground of a board.