Patent Publication Number: US-2023164440-A1

Title: Camera assembly

Description:
CROSS-REFERENCE TO RELATED APPLICATION 
     This application claims the priority benefit of Chinese Patent Application Serial Number 202111382659.4, filed on Nov. 22, 2021, the full disclosure of which is incorporated herein by reference. 
     BACKGROUND 
     Technical Field 
     The present disclosure relates to the technical field of camera assembly, particularly to a camera assembly designed to equip with a voice coil motor with an optical image stabilized sensor. 
     Related Art 
     Cameras nowadays are often equipped with image stabilization mechanisms, particularly the optical image stabilization technology, to compensate for low light situation for capturing a clear image with excellent image quality to avoid unclear outcomes due to unstable shooters&#39; hands while hand-held shooting with cameras. Conventional image stabilization of a sensor of a camera is equipped with a spring component and meanwhile, this camera assembly can be combined with metal wiring technology to realize a configuration that extends out the circuit of the floating sensor. However, the disadvantage is the exceeding cost, poor horizontal-only image stabilization without any effect in the vertical direction (roll). 
     SUMMARY 
     The embodiments of the present disclosure provide a camera device tended to solve the problem of poor image stabilization and the exceeding cost of conventional camera devices through a design of combining a driving mechanism for focusing system with a driving mechanism for optical image stabilization system. 
     The present disclosure provides a camera assembly comprising a casing, a carrying component, a magnetic component, a light sensing component, and a carrying board. The casing comprises a lens accommodating groove, a housing, and a base on which the housing is disposed. The lens accommodating groove is disposed between the housing and the base. An opening of the lens accommodating groove is disposed at the housing. The carrying component comprises a carrying body and a first coil disposed on a periphery of the carrying body. The carrying component is assembled in the lens accommodating groove. The magnetic component is disposed on a periphery of the first coil and on an inner wall of the lens accommodating groove. The light sensing component comprises a light sensing member, a baseplate, and a second coil. The light sensing member is disposed on the baseplate. The second coil is disposed around the light sensing member and below the magnetic component. The carrying board is disposed under the light sensing component and is slidably disposed on the base. 
     In one embodiment, the number of the second coils is multiple. The plurality of second coils comprise a first direction coil group and a second direction coil group. The first direction coil group is disposed at two opposite sides of the light sensing member. The second direction coil group is disposed at the other two opposite sides of the light sensing member. 
     In one embodiment, the magnetic component comprises a first direction magnet group and a second direction magnet group. The first direction magnet group is disposed above the first direction coil group. The second direction magnet group is disposed above the second direction coil group. 
     In one embodiment, the first direction coil group comprises a plurality of first side coils and a plurality of second side coils. The plurality of first side coils are disposed on a side of the light sensing member. The plurality of second side coils are disposed on another side of the light sensing member opposite to the side where the plurality of first side coils are disposed. 
     In one embodiment, the magnetic component comprises a first direction magnet group and a second direction magnet group. The first direction magnet group comprises a plurality of first side magnets and a plurality of second side magnets. The plurality of first side magnets are respectively disposed above the plurality of first side coils. The plurality of second side magnets are respectively disposed above the plurality of second side coils. The second direction magnet group is disposed above the second direction coil group. 
     In one embodiment, the base comprises a plurality of recesses and a plurality of balls slidably disposed in the plurality of recesses. A bottom surface of the carrying board is in contact with the plurality of balls. 
     In one embodiment, the bottom surface of the carrying board comprises a plurality of bumps extended into the plurality of recesses. The thickness of each of the bumps is smaller than the depth of each of the recesses. An outer diameter of each of the bumps is smaller than a diameter of an opening of each of the recesses. The plurality of balls are respectively disposed between the recesses and the bumps corresponding to the recesses. 
     In one embodiment, the camera assembly comprises a plurality of first magnetic members and a plurality of second magnetic members. The plurality of first magnetic members are disposed on the base. The plurality of second magnetic members are disposed on the carrying board in a position corresponding to the positions of the plurality of first magnetic members. The plurality of first magnetic members and the plurality of second magnetic members are mutually attracted. 
     In one embodiment, the camera assembly comprises a flexible circuit board. The flexible circuit board comprises a first end part, a second end part, and a body part disposed between the first end part and the second end part. The first end part is connected to a side of the baseplate. The body part surrounds a periphery of the light sensing component. The second end part is disposed at one side of the light sensing component. 
     In one embodiment, the number of the flexible circuit boards is two. The first end parts of the two flexible circuit boards are connected to two opposite sides of the baseplate. When the body parts of the two flexible circuit boards extend vertically upward relative to a surface of the baseplate, they would be extendingly disposed in opposite directions along the periphery of the light sensing component. The body parts of the two flexible circuit boards are disposed at the periphery of the light sensing component and are connected to the second end parts. 
     In one embodiment, the number of the flexible circuit boards is two. The first end parts of the two flexible circuit boards are connected to the same side of the baseplate. When the body parts of the two flexible circuit boards extend vertically upward relative to a surface of the baseplate, they would be extendingly disposed in opposite directions along the periphery of the light sensing component and would be connected to the second end parts. 
     In one embodiment, the first end part of the flexible circuit board is disposed parallel to the surface of the baseplate. The body part and the second end part of the flexible circuit board are disposed vertical to the surface of the baseplate. 
     In one embodiment, the camera assembly comprises a lens component. The lens component is assembled to the carrying body and is disposed in the lens accommodating groove. 
     In one embodiment, the casing comprises a holder disposed at an inner side of the housing. The magnetic component is disposed at the support. The holder surrounds the carrying component. 
     In one embodiment, the camera assembly comprises a first spring member and second spring member. An upper surface of the holder comprises an accommodating recess. A circumference of a lower surface of the holder comprises a securing column. The first spring member is disposed in the accommodating recess of the support. An inner side of the first spring member abuts against a top part of the carrying body. The first spring member is disposed between the holder and the housing. The second spring member is disposed at the securing column of the holder. An inner side of the second spring member supports a bottom side of the carrying body. The second spring member is disposed around the light sensing member. 
     In the embodiments of the present disclosure, by providing a camera assembly designed with a combination of a driving mechanism for focusing system with a driving mechanism for optical image stabilization system, the first coil of the carrying component and the second coil of the light sensing component could jointly correspond to the magnetic field of the magnetic component, so as to minimize the volume of the device by reducing the space occupied in the casing, and also to reduce the total cost. 
     It should be understood, however, that this summary may not contain all aspects and embodiments of the present disclosure, that this summary is not meant to be limiting or restrictive in any manner, and that the disclosure as disclosed herein will be understood by one of ordinary skill in the art to encompass obvious improvements and modifications thereto. 
    
    
     
       BRIEF DESCRIPTION OF THE DRAWINGS 
       The features of the exemplary embodiments believed to be novel and the elements and/or the steps characteristic of the exemplary embodiments are set forth with particularity in the appended claims. The Figures are for illustration purposes only and are not drawn to scale. The exemplary embodiments, both as to organization and method of operation, may best be understood by reference to the detailed description which follows taken in conjunction with the accompanying drawings in which: 
         FIG.  1    is an exploded view of a lens component of a camera assembly of the present disclosure; 
         FIG.  2    is a cross-sectional view along line A-A′ of  FIG.  1   ; 
         FIG.  3    is an exploded view of the camera assembly of the present disclosure; 
         FIG.  4    is another exploded view of the camera assembly of the present disclosure; 
         FIG.  5    is a perspective view of a driving mechanism of a camera assembly of the first embodiment of the present disclosure; 
         FIG.  6    is a schematic diagram of the driving direction of the driving mechanism of the present disclosure; 
         FIG.  7    is another schematic diagram of the driving direction of the driving mechanism of the present disclosure; 
         FIG.  8    is a perspective view of a driving mechanism of a camera assembly of the second embodiment of the present disclosure; 
         FIG.  9    is a perspective view of a driving mechanism of a camera assembly of the third embodiment of the present disclosure; 
         FIG.  10    is a structural diagram of a flexible circuit board of a camera assembly of the first embodiment of the present disclosure; 
         FIG.  11    is a perspective view of the flexible circuit board of the camera assembly of the first embodiment of the present disclosure; 
         FIG.  12    is another perspective view of the flexible circuit board of the camera assembly of the first embodiment of the present disclosure; 
         FIG.  13    is a structural diagram of a flexible circuit board of a camera assembly of the second embodiment of the present disclosure; 
         FIG.  14    is a perspective view of the flexible circuit board of the camera assembly of the second embodiment of the present disclosure; 
         FIG.  15    is another perspective view of the flexible circuit board of the camera assembly of the second embodiment of the present disclosure; 
         FIG.  16    is an exploded view of inner components of a camera assembly of the present disclosure; and 
         FIG.  17    is another exploded view of inner components of a camera assembly of the present disclosure. 
     
    
    
     DETAILED DESCRIPTION OF THE EMBODIMENTS 
     The present disclosure will now be described more fully hereinafter with reference to the accompanying drawings, in which exemplary embodiments of the disclosure are shown. This present disclosure may, however, be embodied in many different forms and should not be construed as limited to the embodiments set forth herein. Rather, these embodiments are provided so that this present disclosure will be thorough and complete, and will fully convey the scope of the present disclosure to those skilled in the art. 
     Certain terms are used throughout the description and following claims to refer to particular components. As one skilled in the art will appreciate, manufacturers may refer to a component by different names. This document does not intend to distinguish between components that differ in name but function. In the following description and in the claims, the terms “include/including” and “comprise/comprising” are used in an open-ended fashion, and thus should be interpreted as “including but not limited to”. “Substantial/substantially” means, within an acceptable error range, the person skilled in the art may solve the technical problem in a certain error range to achieve the basic technical effect. 
     The following description is of the best-contemplated mode of carrying out the disclosure. This description is made for the purpose of illustration of the general principles of the disclosure and should not be taken in a limiting sense. The scope of the disclosure is best determined by reference to the appended claims. 
     Moreover, the terms “include”, “contain”, and any variation thereof are intended to cover a non-exclusive inclusion. Therefore, a process, method, object, or device that includes a series of elements not only includes these elements, but also includes other elements not specified expressly, or may include inherent elements of the process, method, object, or device. If no more limitations are made, an element limited by “include a/an . . . ” does not exclude other same elements existing in the process, the method, the article, or the device which includes the element. 
       FIG.  1    is an exploded view of a lens component of a camera assembly of the present disclosure.  FIG.  2    is a cross-sectional view along line A-A′ of  FIG.  1   .  FIG.  3    is an exploded view of the camera assembly of the present disclosure.  FIG.  4    is another exploded view of the camera assembly of the present disclosure. As shown in the figures, the present disclosure provides a camera assembly  1 , which comprises a casing  11 , a carrying component  12 , a magnetic component  13 , a light sensing component  14 , and a carrying board  15 . The casing  11  comprises a lens accommodating groove  110 , a housing  111 , and a base  112 . The housing  111  is disposed on the base  112 , the lens accommodating groove  110  is disposed between the housing  111  and the base  112 , and an opening of the lens accommodating groove  110  is disposed at the housing  111 . The carrying component  12  comprises a carrying body  121  and a first coil  122 , the first coil  122  is disposed on the periphery of the carrying body  121 , and the carrying component  12  is assembled in the lens accommodating groove  110 . The magnetic component  13  is disposed on the periphery of the first coil  122 , and the magnetic component  13  is disposed on an inner wall of the lens accommodating groove  110 . The light sensing component  14  comprises a light sensing member  141 , a baseplate  142 , and a second coil  143 . The light sensing member  141  is disposed at the baseplate  142  and is correspondingly disposed at the bottom of the lens accommodating groove  110 . The second coil  143  is disposed around the light sensing member  141  and below the magnetic component  13 . The carrying board  15  is disposed under the light sensing component  14  and is disposed on the base  112 . Wherein, the camera assembly  1  further comprises a lens component  16 . The lens component  16  is assembled on the carrying body  121  and is disposed in the lens accommodating groove  110 . 
     The base  112  comprises a plurality of recesses  1121  and a plurality of balls  1122  slidably disposed in the plurality of recesses  1121 . A bottom surface of the carrying board  15  is in contact with the plurality of balls  1122 . Wherein, the bottom surface of the carrying board  15  further comprises a plurality of bumps  151  extended into the plurality of recesses  1121 . The thickness of each of the bumps  151  is smaller than the depth of each of the recesses  1121 , and the outer diameter of each of the bumps  151  is smaller than the diameter of an opening of each of the recesses  1121 . The plurality of balls  1122  are respectively disposed between the recesses  1121  and the bumps  151  corresponding to the recesses  1121 . In this way, when the bump  151  is in the recess  1121 , the bump  151  could be displaced and rotating in the recess  1121 . Meanwhile, the displacement and rotation range of the bump  151  are also limited by the opening of the recess  1121 . 
     Besides, the camera assembly  1  further comprises a plurality of first magnetic members  171  and a plurality of second magnetic members  172 . The plurality of first magnetic members  171  are disposed on the base  112 . The plurality of second magnetic members  172  are disposed on the carrying board  15  in a position corresponding to the positions of the first magnetic members  171 . The plurality of first magnetic members  171  and the plurality of second magnetic members  172  are mutually attracted. In this way, when the plurality of bumps  151  of the carrying board  15  are sliding on the balls  1122  of the base  112 , the bumps  151  of the carrying board  15  may be stably against the plurality of balls  1122  during sliding, and prevent the carrying board  15  from being separated from the base  112 . In some embodiments, the first magnetic member  171  is a magnetic conductive sheet, and the second magnetic member  172  is a magnet. Regarding the first magnetic member  171  and the second magnetic member  172 , the arrangement of the magnet and the magnetic conductive sheet can be decided according to requirements. 
       FIG.  5    is a perspective view of a driving mechanism of a camera assembly of the first embodiment of the present disclosure.  FIG.  6    and  FIG.  7    are schematic diagrams of the driving direction of the driving mechanism of the present disclosure. As shown in the figures, in this embodiment, the first coil  122  is disposed on the periphery of the carrying body  121 . When applying an electric current to the first coil  122 , the first coil  122  would generate a magnetic force relative to the magnetic component  13  so that the first coil  122  would drive the carrying body  121  to displace. 
     Besides, in this embodiment, the number of the second coils  143  is multiple. The plurality of second coils  143  are disposed around the light sensing member  141 . When an electric current is applied to the plurality of second coils  143 , the plurality of second coils  143  would generate a magnetic force against the magnetic component  13  so that the plurality of second coils  143  could drive the light sensing component  14  to horizontally displace or rotate. Moreover, the carrying board  15  is disposed under the light sensing component  14 , and the bottom surface of the carrying board  15  is in contact with the plurality of balls  1122 . The bottom surface of the carrying board  15  and a surface of the base  112  would not be affected by any friction so that the carrying board  15  will not affect the horizontal displacement or rotation of the light sensing component  14 . 
     Referring to  FIG.  7    again, in this embodiment, the light sensing component  14  further comprises a coil board member  144 . The plurality of second coils  143  could be firstly disposed on or embedded in the coil board member  144 , and since the coil board member  144  is annular shaped, the coil board member  144  could facilitate the plurality of second coils  143  to be disposed around the light sensing member  141 . Also, the coil board member  144  can secure the plurality of second coils  143  at outer positions relative to the light sensing member  141 . In this way, the plurality of second coils  143  could be disposed on the outer side of the light sensing member  141 , which is beneficial to the assembling process for the camera assembly  1 . 
     Moreover, the plurality of second coils  143  comprise a first direction coil group  1431  and a second direction coil group  1432 . The first direction coil group  1431  is disposed on two opposite sides of the light sensing member  141 , and the second direction coil group  1432  is disposed on the other two opposite sides of the light sensing member  141 . The magnetic component  13  comprises a first direction magnet group  131  and a second direction magnet group  132 . The first direction magnet group  131  is disposed above the first direction coil group  1431 , and the second direction magnet group  132  is disposed above the second direction coil group  1432 . Wherein, the first direction coil group  1431  further comprises a plurality of first side coils  14311  and a plurality of second side coils  14312 . The plurality of first side coils  14311  are disposed on a side of the light sensing member  141 , and the plurality of second side coils  14312  are disposed on another side of the light sensing member  141  opposite to the side where the plurality of first side coils  14311  are disposed. Furthermore, the first direction magnet group  131  comprises a plurality of first side magnets  1311  and a plurality of second side magnets  1312 . The plurality of first side magnets  1311  are respectively disposed above the plurality of first side coils  14311 , and the plurality of second side magnets  1312  are respectively disposed above the plurality of second side coils  14312 . 
     Referring to  FIG.  6    again, three axial directions of X, Y, and Z are marked on the drawing to facilitate the description of the driving direction of the driving mechanism. When a corresponding magnetic field is generated as the first coil  122  is applied with an electric current, the magnetic field generated by the first coil  122  would produce an attractive force or a repulsive force on the permanent magnetic field of the magnetic component  13 , where the intensity of the attractive force and the repulsive force are controlled by the first coil  122  through electric current intensity. The carrying body  121  is driven by the first coil  122  to move back and forth in a vertical direction (i.e., displacement in Z-axis). The lens component  16  is assembled on the carrying body  121 . The carrying body  121  can move closer to or away from the light sensing component  14  to adjust the distance between the lens component  16  and the light sensing member  141  for the completion of the focusing mechanism. 
     Referring to  FIG.  7    again, in this embodiment, three axial directions of X, Y, and Z are marked on the drawing to facilitate the description of the driving direction of the driving mechanism. When an electric current is applied to the second coil  143  to generate a corresponding magnetic field, the magnetic field generated by the second coil  143  would produce an attractive force or a repulsive force to the permanent magnetic field of the magnetic component  13 , where the intensity of the attractive force and the repulsive force are controlled by the second coil  143  through electric current intensity. The light sensing component  14  is driven by the second coil  143  to horizontally displace or rotate. Wherein, the first direction coil group  1431  of the second coil  143  could generate an attractive force or a repulsive force in a first direction (i.e., the X-axis direction) relative to the first direction magnet group  131  of the magnetic component  13 . The first direction coil group  1431  could drive the light sensing component  14  to move back and forth in the first direction (i.e., the X-axis direction). Moreover, the second direction coil group  1432  of the second coil  143  could generate an attractive force or a repulsive force in a second direction (i.e., the Y-axis direction) relative to the second direction magnet group  132  of the magnetic component  13 . The second direction coil group  1432  could drive the light sensing component  14  to move back and forth in the second direction (i.e., the Y-axis direction). The displacement of the lens component  16  of this embodiment could be adjusted along the vertical direction, the first direction, and the second direction which are the three axial directions of the X, Y, and Z-axis. 
     Furthermore, the first direction coil group  1431  further comprises a plurality of first side coils  14311  and a plurality of second side coils  14312 . The number of the plurality of first side coils  14311  is two, and the number of the plurality of first side coils  14311  is two. The plurality of first side coils  14311  are arranged side by side along a side of the light sensing component  14 , and meanwhile, the plurality of first side coils  14311  correspond to the plurality of first side magnets  1311  of the first direction magnet group  131 . The number of second side coils  14312  is two, and the number of second side magnets  1312  is two. The plurality of second side coils  14312  are arranged side by side along another side of the light sensing component  14 , and meanwhile, the plurality of second side coils  14312  correspond to the plurality of second side magnets  1312  of the first direction magnet group  131 . In this embodiment, by applying an electric current in the same direction to a plurality of first side coils  14311  and a plurality of second side coils  14312 , the plurality of first side coils  14311  and the plurality of second side coils  14312  could generate an attractive force or repulsion force in the first direction (i.e., the X-axis direction) relative to the magnetic component  13 . 
     In this embodiment, the two first side coils  14311  comprise two coils  14311 A and  14311 B. The two second side coils  14312  comprise two coils  14312 A and  14312 B. The two first side magnets  1311  comprise two magnets  1311 A and  1311 B. The two second side magnets  1312  comprise two magnets  1312 A and  1312 B. The first side coil  14311 A and the second side coil  14312 A are oppositely disposed, and the first side coil  14311 B and the second side coil  14312 B are oppositely disposed. An electric current in the same direction is applied to the first side coil  14311 A and the second side coil  14312 A so that the first side coil  14311 A would be positively displaced in the first direction X relative to the first side magnet  1311 A. The second side coil  14312 A could be positively displaced in the first direction X relative to the second side magnet  1312 A, that is, to be displaced in a direction from the second side coil  14312 A toward the first side coil  14311 A. 
     Besides, the first side coil  14311 B and the second side coil  14312 B also applied with an electric current in the same direction so that the first side coil  14311 B can be negatively displaced in the first direction X relative to the first side magnet  1311 B. The second side coil  14312 B is negatively displaced in the first direction X relative to the second side magnet  1312 B, that is, to be displaced in the direction from the first side coil  14311 B to the second side coil  14312 B. In this way, the light sensing component  14  close to one side of the first side coil  14311 A and the second side coil  14312 A would be driven to displace in the direction from the second side coil  14312 A toward the first side coil  14311 A. The light sensing component  14  close to one side of the first side coil  14311 B and the second side coil  14312 B would be driven to displace in the direction from the first side coil  14311 B toward the second side coil  14312 B, thereby driving the light sensing component  14  to displace in a clockwise direction. On the contrary, an electric current in a reverse direction can also be applied to cause the light sensing component  14  to displace in a counterclockwise direction. 
       FIG.  8    is a perspective view of a driving mechanism of a camera assembly of the second embodiment of the present disclosure. As shown in the figure, the difference between this embodiment and the first embodiment of the driving mechanism lies in the magnetic component  13 . In this embodiment, the magnetic components  13  are four permanent magnets, which are disposed around the first coil  122 . Meanwhile, the magnetic component  13  is disposed above the second coil  143 . This embodiment does not limit the number of the magnetic components  13  to four permanent magnets, which could also be correspondingly configured according to the number of coils. Referring to  FIG.  7    again, four permanent magnets respectively correspond to the plurality of first side coils  14311  and the plurality of second side coils  14312 . Two permanent magnets correspond to the second direction coil group  1432 . 
       FIG.  9    is a perspective view of a driving mechanism of a camera assembly of the third embodiment of the present disclosure. As shown in the figure, the difference between this embodiment and the first embodiment of the driving structure lies in the second direction coil group  1432 . The second direction coil group  1432  further comprises a plurality of first side coils  14321  and a plurality of second side coils  14322 . The number of the second direction coil groups  1432  is the same as the number of the first direction coil groups  1431 . In this way, the horizontal displacement or rotation of the light sensing component  14  can be adjusted precisely according to the direction of electric current applied to the first direction coil group  1431  and the second direction coil group  1432 , so as to perform an accurate light compensation for the light sensing member  141 . 
     In this embodiment, the number of the magnetic components  13 , the number of the first direction coil groups  1431 , and the number of the second direction coil groups  1432  can be adjusted according to requirements. Thus, the light sensing member  141  can be adjusted for light compensation. 
       FIG.  10    to  FIG.  12    are structural diagram and perspective views of a flexible circuit board of a camera assembly of the first embodiment of the present disclosure. As shown in the figures, in this embodiment, the camera assembly  1  further comprises a flexible circuit board  18 , which comprises a first end part  181 , a second end part  182 , and a body part  183  disposed between the first end part  181  and the second end part  182 . The first end part  181  of the flexible circuit board  18  is connected to a side of the baseplate  142 , and the body part  183  of the flexible circuit board  18  surrounds the periphery of the light sensing component  14 . In this embodiment, the flexible circuit board  18  is disposed on the periphery of the light sensing component  14 , which makes the moving range of the light sensing component  14  not limited by the circuit configuration of the flexible circuit board  18 . In the case of horizontal displacement or rotation of the light sensing component  14 , since the flexible circuit board  18  is disposed on the periphery of the light sensing component  14 , the flexible circuit board  18  could provide an appropriate space for the light sensing component  14  for displacement. 
     In this embodiment, the number of the flexible circuit boards  18  is two. The first end parts of the two flexible circuit boards  18  are connected to two opposite sides of the baseplate  142  and extend below the carrying board  15  to two sides of the carrying board  15 . The body parts of the two flexible circuit boards  18  are winding upward from two sides of the carrying board  15 . When the body parts of the two flexible circuit boards  18  extend vertically upward relative to a surface of the baseplate  142 , they would extend along the periphery of the light sensing component  14  in opposite directions and would connect to the second end part (see  FIG.  11    and  FIG.  12   ). 
       FIG.  13    to  FIG.  15    are structural diagram and perspective views of a flexible circuit board of a camera assembly of the second embodiment of the present disclosure. As shown in the figures, the difference between this embodiment and the first embodiment of the flexible circuit board lies in the arrangement of the flexible circuit board  18 . The number of the flexible circuit boards  18  is also two. The first end parts  181  of the two flexible circuit boards  18  are connected to the same side of the baseplate  142  and extend below the carrying board  15  to the same side of the carrying board  15 . The body parts  183  of the two flexible circuit boards  18  are wining upward from the same side of the carrying board  15 . When the body parts  183  of the two flexible circuit boards  18  extend upward vertical to a surface of the baseplate  142 , they would extend along the periphery of the light sensing component  14  in opposite directions and would connect to the second end part  182 . 
     Back to  FIG.  3    and  FIG.  4   , in some embodiments, the first end parts  181  of the two flexible circuit boards  18  are disposed parallel to the surface of the baseplate  142 , the body parts of the two flexible circuit boards  18   183  are disposed perpendicular to the surface of the baseplate  142 , and the second end parts  182  of the two flexible circuit boards  18  are disposed perpendicular to the surface of the baseplate  142 . In some embodiments, the body parts of the two flexible circuit boards  18  are disposed between the housing  111  and the light sensing component  14 , on the X-Y plane. The second end parts  182  of the two flexible circuit boards  18  are exposed from the housing  111 . In some embodiments, the housing  111  comprises two notches  1110 , from which the second end parts  182  of the two flexible circuit boards  18  are exposed. In some embodiments, the base  112  comprises two securing sidewalls  1123 , which extend vertically upward from the sides of the base  112  and are disposed corresponding to the two notches  1110 . The second end parts  182  of the two flexible circuit boards  18  are disposed on the two securing sidewalls  1123  and are exposed from the two notches  1110 . 
       FIG.  16    and  FIG.  17    are exploded views of inner components of a camera assembly of the present disclosure. As shown in the figures, in this embodiment, the casing  11  further comprises a holder  113  disposed inside the housing  111 . The holder  113  comprises a plurality of recesses  1131 . The magnetic component  13  is disposed in the plurality of recesses  1131  of the holder  113 . The holder  113  surrounds the carrying component  12 . The camera assembly  1  further comprises a first spring member  191  and a second spring member  192 . An upper surface of the holder  113  comprises an accommodating recess  1132 , and the periphery of a lower surface of the holder  113  comprises a securing column  1133 . The first spring member  191  is disposed in the accommodating recess  1132  of the holder  113  and is disposed between the holder  113  and the housing  111 . The second spring member  192  is disposed at the securing column  1133  of the holder  113  and is disposed around the light sensing member  141 . Wherein, an inner side of the first spring member  191  abuts against the periphery on the top of the lens component  16 , and an inner side of the second spring member  192  supports the periphery on the bottom of the lens component  16 . When the lens component  16  is driven by the carrying body  121 , the first spring member  191  and the second spring member  192  would maintain the balance of the lens component  16  during movement. Meanwhile, the first spring member  191  and the second spring member  192  could be used as electrical circuits providing transmission of power or signal. Besides, the flexible circuit board  18  surrounding the light sensing component  14  is disposed in the gap between the housing  111  and the holder  113 , so as to limit the circuit path of the flexible circuit board  18 . 
     In summary, embodiments of the present disclosure provide a camera assembly designed with a combination of a driving mechanism for focusing system with a driving mechanism for optical image stabilization system, the first coil of the carrying component and the second coil of the light sensing component could jointly correspond to the magnetic field of the magnetic component, so as to minimize the volume of the device by reducing the space occupied in the casing, and also to reduce the total cost. 
     It is to be understood that the term “comprises”, “comprising”, or any other variants thereof, is intended to encompass a non-exclusive inclusion, such that a process, method, article, or device of a series of elements not only comprise those elements but further comprises other elements that are not explicitly listed, or elements that are inherent to such a process, method, article, or device. An element defined by the phrase “comprising a . . . ” does not exclude the presence of the same element in the process, method, article, or device that comprises the element. 
     Although the present disclosure has been explained in relation to its preferred embodiment, it does not intend to limit the present disclosure. It will be apparent to those skilled in the art having regard to this present disclosure that other modifications of the exemplary embodiments beyond those embodiments specifically described here may be made without departing from the spirit of the disclosure. Accordingly, such modifications are considered within the scope of the disclosure as limited solely by the appended claims.