JP2005195903A - Camera module and portable terminal - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To provide a camera module whose strength is enhanced, in a camera module equipped with a macro (close-up) function in addition to an ordinary photographing function, and in a portable terminal equipped with the camera module. <P>SOLUTION: The camera module 1 has a lens holder 5 holding a lens 6, a holder 4 holding the lens holder 5 so as to move in an optical axis direction, a rotating member 8 intervening between the lens holder 5 and the holder 4 and allowing the lens holder 5 to move in the optical axis direction, and an energizing member 9 for pressing the lens holder 5 to the rotating member 8. The holder 4 has a pillar part 404 which can be elastically deformed, and a pawl part 406 which is provided on the pillar part 404 so as to hold and fix the energizing member 9 in between with the lens holder 5, and also a shutter device 30 functioning as a member to be attached to open/shut an optical path to the lens 6 is attached to the holder 4. The shutter device 30 is provided with a rib 20 for preventing the deformation of the pillar part 404 by abutting on the pillar part 404. <P>COPYRIGHT: (C)2005,JPO&NCIPI

Description

  The present invention relates to a camera module that captures an image using an image sensor, and more particularly to a camera module having a macro (close-up) function in addition to a normal shooting function and a portable terminal including the camera module.

  2. Description of the Related Art Conventionally, a function of performing focusing or zooming by moving the position of a lens held in a lens holder by a driving force of a motor or the like and changing a focal length is known.

  An example of a mechanism for moving the lens holder in the optical axis direction is disclosed in Patent Document 1. In Patent Document 1, as shown in FIG. 15, a male screw portion 1003 is formed on the outer peripheral surface of a lens frame 1000 that holds lenses 1001 and 1002, and a holding hole 1005 is formed in a lens holder 1004. An internal thread portion 1006 is formed on the peripheral surface. The lens frame 1000 is screwed into a holding hole 1005 formed in the lens holder 1004. When the lens frame 1000 is moved with respect to the lens holder 1004 in the optical axis direction, the lens is moved forward and backward in the optical axis direction by rotating the lens frame 1000 with respect to the lens holder 1004.

JP-A-9-21938

  However, if the lens frame holding the lens is rotated around the optical axis and the lens frame is advanced or retracted relative to the lens holder, the lens rotation center may not match the optical axis. A shift occurs in the center position of the lens.

  If the camera is used in a digital camera or video camera, the lens and imaging surface are large, so the effect on the captured image is small. However, the lens and imaging surface of a small camera housed in a mobile phone are downsized. Therefore, the effect on the image is great.

  In addition, there is room for improvement in the strength of the camera module.

  The present invention has been made in view of the above circumstances, and an object thereof is to provide a camera module and a portable terminal with increased strength.

  In order to achieve this object, a camera module according to claim 1 includes a lens holder for holding a lens, a holder for holding the lens holder so as to be movable in an optical axis direction, and the lens holder between the lens holder and the holder. A lens position changing member that intervenes to move the lens holder in the optical axis direction; and an urging member that presses the lens holder against the lens position changing member. And a claw portion that is provided on the column portion and clamps and fixes the urging member between the lens holder and a mounted member such as a shutter that opens and closes the optical path to the lens. The attached member is provided with a reinforcing portion that abuts on the pillar portion and prevents the pillar portion from being deformed.

  According to the first aspect of the present invention, by providing the reinforcing portion for preventing the deformation of the column portion, it is possible to prevent the claw portion that sandwiches and fixes the urging member from coming off from the end of the urging member. Therefore, the urging member that urges the lens holder by the impact does not come off from the camera module or fall off.

  The camera module according to claim 2 is characterized in that, in the camera module according to claim 1, an attachment portion for fixing the attached member to the holder also serves as the reinforcing portion.

  In the invention according to claim 2, the mounting portion for fixing the mounted member to the holder also serves as a reinforcing portion for preventing the deformation of the column portion. Therefore, it is possible to prevent the column portion from being deformed without newly providing a reinforcing portion.

  4. The portable terminal according to claim 3, wherein the camera module is mounted on a main body, and the camera module includes a lens holder that holds a lens, and a holder that holds the lens holder so as to be movable in the optical axis direction. And a lens position changing member that is interposed between the lens holder and the holder so that the lens holder can be moved in the optical axis direction, and a biasing member that presses the lens holder against the lens position changing member. The main body portion is provided with a reinforcing portion that abuts on the pillar portion to prevent the pillar portion from being deformed.

  According to a third aspect of the present invention, there is provided a portable terminal having a camera module mounted on a main body portion, wherein the main body portion is provided with a reinforcing portion that abuts on the column portion and prevents the column portion from being deformed. By providing the reinforcing portion for preventing the deformation of the column portion, it is possible to prevent the claw portion that sandwiches and fixes the urging member from coming off from the end of the urging member. Therefore, the urging member that urges the lens holder does not come off from the camera module or fall off. Since the reinforcement part for preventing the deformation of the pillar part is provided in the mobile terminal body part, it is not necessary to provide a new member for mounting the camera module on the mobile terminal, and the number of parts can be reduced.

  The present invention provides the reinforcing portion for preventing the deformation of the column portion, thereby preventing the claw portion engaged with the urging member from coming off from the end of the urging member, and the urging member even when an external force is applied. Does not come off or fall off the camera module.

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

  First, the configuration of the camera module 1 of the present embodiment will be described with reference to FIG. The camera module 1 of the present embodiment includes a shutter device 30 that opens and closes the shutter blades 13 by the driving force of the motor 11, and an imaging device 40 that includes the lens 6 and the imaging element 3 and captures a subject image. The shutter device 30 as a member to be attached is attached to the holder 4 of the imaging device 40.

  A detailed configuration of the shutter device 30 will be described with reference to FIG. FIG. 2 is an enlarged view of the peripheral portion of the operating pin 17 that drives the shutter blade 13, the motor 11 that drives the operating pin 17, and the control circuit 14 that controls the rotation of the motor 11. As shown in FIG. 2, the shutter device 30 includes a plurality of shutter blades 13 provided on the front side of the shutter substrate 12, and a side opposite to the side on which the shutter blades 13 are provided (back surface). And a control circuit 14 that controls the rotation of the motor 11.

  A plurality of shutter blades 13 provided on the shutter substrate 12 are attached to a fixed shaft 18 so as to be rotatable around the fixed shaft. Each of the shutter blades 13 is provided with a cam hole and engages with an operating pin 17 extending from the rotor shaft 15 of the motor 11. As the operating pin 17 rotates, each shutter blade 13 swings in a unique locus.

  An arm portion 16 is connected to an end portion of the rotor shaft 15 extending from the motor 11 disposed on the back side of the shutter substrate 12. An operating pin 17 is connected to the end of the arm portion 16. The operation pin 17 passes through the opening 21 provided on the shutter substrate 12 side and extends to the opposite side of the shutter substrate 12. A cam hole of the shutter blade 13 is engaged with the operating pin 17 protruding to the front side. Therefore, when the rotor shaft 15 of the motor 11 rotates, the operation pin 17 rotates in conjunction with this, and the shutter blade 13 swings along a predetermined locus. FIG. 3 shows the shutter device 30 as viewed from above. On the upper surface of the shutter device 30, as shown in FIG. 3, the head portion of the fixed shaft 18 to which the shutter blades are rotatably attached is visible. From the opening 21, the head portion of the operating pin 17 and a part of the arm portion 16 can be seen.

  Next, the configuration on the imaging device 40 side will be described. FIG. 4 shows a configuration in which the shutter device 30 is removed from the imaging device 40 for easy understanding of the configuration of the imaging device 40. As shown in FIG. 4, an image pickup device 3 such as a CCD is mounted on one surface of the substrate 2. On the substrate 2 on which the image sensor 3 is mounted, a holder 4 is fixed so as to surround the image sensor 3, and on the upper part of the holder 4 (on the side opposite to the contact portion of the holder 4 with the substrate 2). An inner cylindrical portion 403 that engages with the lens holder 5 is formed.

  Two lenses 6 that form a subject image on the image sensor 3 are held inside the lens holder 5. Further, the lens holder 5 is formed with a circumferential groove 501 that engages with the inner cylindrical portion 403 of the holder 4, and the inner cylindrical portion 403 is fitted into the circumferential groove 501.

  An adjustment member 7 is provided on the outer periphery of the cylindrical lens holder 5. The adjustment member 7 is provided with a screw portion 701 that is screwed with the screw portion 502 provided on the lens holder 5. The lens holder 5 is attached to the adjustment member 7 by screwing between the screw portions and then rotated around the optical axis to focus the lens 6 accommodated in the lens holder 5. After the focusing of the lens 6 is completed, an adhesive is applied to the screwed portion of the adjustment member 7 and the lens holder 5 to fix the lens holder 5 to the adjustment member 7. The adjustment member 7 fixed to the lens holder 5 functions as a part of the lens holder 5. In the present embodiment, the adhesive is applied to the lens holder 5, but the present invention is not limited to this, and the lens holder 5 may be fixed by laser welding or the like.

  A ring-shaped rotating member 8 is sandwiched between the adjusting member 7 and the holder 4, and these members are urged by a circular urging member 9. On the lower surface of the ring-shaped rotating member 8 (on the contact surface side with the holder 4), a cam surface for applying a driving force for moving the lens holder 5 back and forth in the optical axis direction (cam contour for realizing a predetermined driving force by the cam) Is formed). By rotating the rotating member 8 on which the cam surface is formed around the optical axis, the adjusting member 7 on the rotating member 8 and the lens holder 5 fixed to the adjusting member 7 move in the optical axis direction. Further, the urging member 9 that presses the adjusting member 7 from the lens 6 side toward the substrate 2 side is composed of a ring-shaped leaf spring as shown in FIG. 5, and the urging force is generated by bending the urging member 9. Works and presses the adjustment member 7. Note that FIG. 5 shows a front view of the imaging device 40 shown in FIG. 4 as viewed from the front.

  The holder 4 is provided with an inner cylindrical portion 403, a column portion 404 that surrounds the periphery of the lens holder 5, and a wall portion 405. These increase the strength of the camera module 1 and serve to protect the lens 6 and the image sensor 3 from external force.

  Here, the structure of each part mentioned above is demonstrated in detail. First, the configuration of the holder 4 will be described with reference to FIGS. 6 shows a top view of the holder 4 as viewed from above, FIG. 7 shows the shape of the cut surface taken along the line AA ′ shown in FIG. 6, and FIG. The bottom view which looked at from the board | substrate 2 side is shown. First, as shown in the top view of FIG. 6, the holder 4 is provided with an opening 402 for guiding the light condensed by the lens 6 to the image sensor 3 in the central region of the substantially circular bottom surface portion 401. Yes. An inner cylindrical portion 403 is erected on the bottom surface portion 401 so as to surround the opening 402 around the opening 402. The inner cylindrical portion 403 engages with the circumferential groove 501 of the lens holder 5 to hold the lens holder 5 slidably with respect to the holder 4. The sliding contact surfaces between the holder 4 and the lens holder 5 are the outer peripheral surface 403 a of the inner cylindrical portion 403 and the inner peripheral surface 501 a of the circumferential groove 501. Since the sliding contact surface is on the outer peripheral surface 403 a side, even when the lens holder 5 moves and dust such as rubbing scraps is generated on the sliding contact surface, the dust does not enter the lens holder 5. It does not enter the light path.

  Further, in the peripheral part of the holder 4, a pillar part 404 having legs for separating the bottom face part 401 from the substrate 2 by a predetermined distance, and concentration of external force on the pillar part 404 are prevented, and the camera module 1 A wall portion 405 for increasing the strength is provided. As shown in FIG. 6, three column portions 404 are provided in the peripheral portion of the bottom surface portion 401 (a position that is substantially equidistant from the center of the bottom surface portion 401). The column portions 404 provided at the three locations are arranged so that their circumferential intervals are substantially equal. This is to increase the stability of the holder 4 erected on the substrate 2. In other words, in this embodiment, the outer periphery is large due to the rotating member 8 and the like, and only the surrounding member 409 surrounding the periphery of the imaging element 3 is poor in stability, and the column portion 404 is provided. (In particular, in this embodiment, the rotating member 8 protrudes outside the holder 4 as shown in FIG. 4, so that the holder 4 on which the rotating member 8 is placed is fixed to the substrate 2 at three locations. doing.)

  As shown in FIG. 7, a claw portion 406 is provided at the tip end portion of the column portion 404 (on the side opposite to the substrate 2). The end of the urging member 9 is hung on the claw portion 406 and pushed up by the first protrusion 703 provided on the adjustment member 7 from below, so that the urging member 9 made of a leaf spring is bent, and the adjustment member 7 and the adjustment member The rotating member 8 provided below 7 is pressed downward (on the substrate 2 side).

  Three pedestal members 407 are arranged at a position slightly inside (center side) from the peripheral portion of the bottom surface portion 401 provided with the column portion 404 and the wall portion 405. Similar to the column portion 404, the base member 407 is also substantially equidistant from the center of the bottom surface portion 401, and is arranged so that the respective circumferential intervals are substantially equal. The pedestal member 407 is a protrusion that is one step higher than the bottom surface portion 401, and makes the pedestal member 407 contact the cam surface of the rotating member 8. Therefore, the contact area with the rotating member 8 can be reduced, the frictional resistance can be reduced, and the rotating member 8 can be easily rotated. Further, by providing the pedestal member 407 that is one step higher than the bottom surface portion 401, the cam surface unevenness provided on the lower surface of the rotating member 8 can be efficiently transmitted to the adjustment member 7 connected to the lens holder 5. it can.

  Next, the configuration of the holder 4 on the substrate side (lower surface side) will be described with reference to FIG. As shown in FIG. 8, an enclosing member 409 that surrounds the image sensor 3 provided on the substrate 2 is provided on the substrate side of the holder 4. In the region surrounded by the enclosing member 409, an image sensor arrangement space for arranging the image sensor 3 and a filter arrangement space for filtering the light collected by the lens 6 are provided. As shown in FIG. 4, the filter 10 is disposed between the lens 6 and the image sensor 3.

  Further, the leg portions of the three column portions 404 are provided on the lower surface side of the holder 4. As shown in FIG. 8, the three legs are arranged so that their circumferential intervals are substantially equal. Further, an opening 408 is formed on the front surface of the leg portion (in the center direction of the bottom surface portion 401). From this opening, the claw portion 406 of the column portion 404 can be seen. This opening is made when the claw portion 406 is formed.

  Next, the shape of the rotating member 8 will be described with reference to FIGS. 9A shows a top view of the rotating member 8, and FIG. 9B shows a bottom view of the rotating member 8. As shown in FIG. 10 and 11 show the shape of the cam surface formed on the rotating member 8. As shown in FIGS. 9A and 9B, the rotating member 8 includes a ring-shaped member 801 in which a central portion of a circle is cut out, and a lever member 802 attached to the ring-shaped member 801. The ring-shaped member 801 is formed with a cam surface (a surface on which a cam contour for realizing a predetermined driving force by the cam is formed) on the lower surface side in contact with the holder 4.

  As shown in FIG. 9B, the cam surface is composed of three surfaces having different thicknesses in the optical axis direction when the rotating member 8 is attached to the camera module 1. As shown in FIG. 10, the third surface of the inclined surface connecting the first surface 803 with the thickest thickness, the second surface 804 with the smallest thickness, and the first surface 803 and the second surface 804. A surface 805. FIG. 8 shows a cross-sectional view of the rotary member 8 cut in half and the cross section seen from the side.

  The rotating member 8 is formed such that three base members 407 provided on the holder 4 are always in contact with each other on the same surface of the rotating member 8. That is, when the surface in contact with one pedestal member 407 is the first surface 803, the surface in contact with the other pedestal member 407 is the second surface 804 or the third surface 805. No, the same surface always contacts the three base members 407. The cam surface having such a shape is disposed between the base member 407 and the adjustment member 7 of the holder 4. When the first surface 803 is sandwiched between the pedestal member 407 and the adjustment member 7, the adjustment member 7 and the lens holder 5 fixed to the adjustment member 7 move forward in the optical axis direction (direction away from the substrate 2). The lens 6 is disposed at the close-up position. Further, when the rotating member 8 is rotated by the lever member 802 and the second surface 804 is sandwiched between the pedestal member 407 and the adjusting member 7, the lens holder 5 fixed to the adjusting member 7 and the adjusting member 7. Retreats in the direction of the optical axis (direction approaching the substrate 2), and the lens 6 is disposed at the normal photographing position.

  In the present embodiment, a slippery material such as POM (Polyoxymethylene) is applied as the rotating member 8, but it is not particularly limited to this material. In this embodiment, the cam surface is provided on the lower surface side (substrate side) of the rotating member 8, but the surface on which the cam surface is provided is provided on the upper surface (surface in contact with the adjusting member 7) side of the rotating member 8. It may be.

  Next, the configuration of the adjustment member 7 will be described with reference to FIGS. FIG. 12A shows the configuration of the upper surface of the adjustment member 7 (the surface side in contact with the urging member 9), and FIG. 12B shows the rear surface of the adjustment member 7 (the rotation member 8 and the rotation member 8). The configuration of the contacting surface side) is shown. FIG. 13 shows a side view of the adjustment member 7 as viewed from the side. As shown in FIGS. 12A and 12B, the adjustment member 7 is also ring-shaped, and a rotation stopper 702 is provided on the side surface of the ring-shaped adjustment member 7. The rotation stopper 702 serves as a stopper for preventing the adjustment member 7 on the rotation member 8 from rotating by rotating the rotation member 8. When the rotation stopper 702 contacts the wall portions 405 provided on both sides, the adjustment member 7 is fixed so as not to rotate.

  Further, a screw portion 701 that is screwed with the screw portion 502 of the lens holder 5 is formed on the side surface opposite to the side surface on which the rotation stopper 702 of the adjustment member 7 is provided (that is, the contact surface with the lens holder 5). ing. Further, a non-slip portion 705 at the time of assembly is formed on the outer periphery opposite to the position where the rotation stopper 702 is provided on the outer periphery of the adjustment member 7. The lens holder 5 and the adjustment member 7 are screwed together to attach the lens holder 5 to the adjustment member 7. After attachment, the lens holder 5 is rotated in the optical axis direction, and focusing (initial setting) of the lens 6 is performed. After focusing, an adhesive is applied to the screwed portion of the screw, and the lens holder 5 is fixed to the adjustment member 7. Thereafter, the adjustment member 7 functions as a part of the lens holder 5.

  Further, as shown in FIG. 13, the adjustment member 7 has protrusions on the upper and lower surfaces. The first protrusions 703 provided on the upper surface (the surface side in contact with the urging member 9) are provided at three locations as shown in FIG. 12 (A) or FIG. Plays a role of pushing up from the side. The nail | claw part 406 of the holder 4 which presses the biasing member 9 from the top, and the 1st projection part 703 pushed up from the bottom are not pressing the same position on both upper and lower surfaces of the biasing member 9, The biasing member 9 is bent by slightly shifting the position to be performed.

  Also, the second protrusions 704 provided on the lower surface (the surface in contact with the rotating member 8) side of the adjustment member 7 shown in FIG. 12A or FIG. The contact area with the rotating member 8 is reduced, and the frictional force generated between the rotating member 8 and the rotating member 8 is reduced.

  Here, the alignment of the lens holder 5 and the urging of the adjusting member 7 by the urging member 9 will be described in more detail. Although the lens 6 is attached to the lens holder 5, the lens 6 cannot be accurately focused due to an error in manufacturing simply by attaching the lens holder 5 holding the lens 6 to the camera module 1. For this reason, in this embodiment, screw portions (701, 502) are provided on the joint surface between the adjustment member 7 and the lens holder 5, and the lens holder 5 is connected to the adjustment member 7 so as to be movable in the optical axis direction. Then, the lens holder 5 is moved in the optical axis direction to focus the lens 6. After the focusing is completed, the lens holder 5 is fixed to the adjustment member 7 by applying an adhesive to the screwed portions of the screw portions (701, 502). In addition, at the outer peripheral portion of the lens holder 5 in which the adjustment member 7, the rotation member 8, and the holder 4 are overlapped in the optical axis direction, these members are pressed downward (substrate 2 side) by the biasing member 9. When the lens holder 5 is attached to the adjustment member 7 and the lens holder 5 is moved in order to focus the lens 6, the lens holder 5 is pushed to the substrate 2 side. The pressing direction by the urging member 9 is the same direction as this pressing direction (image side in the optical axis direction). Therefore, the direction in which the urging member 9 is pressed after focusing is the same as the direction in which the biasing member 9 is pressed in the optical axis direction at the time of focusing, and there is no deviation in the focus adjusted by focusing.

  The camera module 1 manufactured in this way can change the position of the lens 6 and switch the focal length by turning the lever member 802 of the rotating member 8. When the first surface 803 of the rotating member 8 is sandwiched between the pedestal member 407 and the adjustment member 7, the adjustment member 7 and the lens holder 5 fixed to the adjustment member 7 are advanced in the optical axis direction (away from the substrate 2). The lens 6 can be arranged at the close-up position. Further, the rotating member 8 is rotated by the lever member 802 and the second surface 804 is sandwiched between the pedestal member 407 and the adjusting member 7, so that the adjusting member 7 and the lens holder 5 fixed to the adjusting member 7 can be illuminated. The lens 6 can be disposed at the normal photographing position by retreating in the axial direction (direction approaching the substrate 2).

  Next, connection between the shutter device 30 and the imaging device 40 will be described. The shutter device 30 as a member to be attached is attached to the holder 4 of the imaging device 40. As shown in FIG. 1, a ring-shaped rib 20 is attached around the holder 4 (see FIG. 3 for the shape of the rib 20). The rib 20 is an attachment portion that attaches the shutter device 30 as the attached member to the holder 4, and functions as a reinforcing portion that prevents the column portion 404 from being deformed. The rib 20 is erected along the side surface of the column portion 404 as shown in FIG. The shutter device 30 is connected to the imaging device 40 by fitting the rib 20 fixed to the outer periphery of the column portion 404 into a groove provided in the shutter substrate 12 and fixing it. The tip portion of the rib 20 is folded back into a substantially U shape as shown in FIG. Therefore, the rib 20 inserted into the groove of the shutter substrate 12 is structured not to easily come out of the groove.

  Further, the urging member 9 urges the adjusting member 7 by engaging the end portion with the claw portion 406 of the column portion 404. However, when the camera module 1 receives an impact due to dropping or the like, the column portion 404 may be deformed and the engagement between the claw portion 406 and the biasing member 9 may be released. Therefore, the rib 20 is brought into contact with the side opposite to the claw portion 406 of the column portion 404 so that the column portion 404 is deformed so that the engagement between the claw portion 406 and the biasing member 9 is not released. In this embodiment, the attachment portion (rib 20) when attaching the shutter device 30 as the attached member to the holder 4 has a function of a reinforcing portion. There may be provided a reinforcing portion for preventing the above.

  In the present embodiment, the shutter device 30 and the imaging device 40 are connected by the rib 20, but the connection method is not limited to this. For example, as shown in FIG. 14, a fitting member 51 for connecting to the imaging device 40 is provided on the main body side of the mobile phone 50 as the attached member, and the holder 4 of the imaging device 40 is fitted to the fitting member 51. May be included. The fitting member 51 functions as an attachment portion for attaching the mobile phone 50 as an attachment member to the holder 4 and also functions as a reinforcement portion for preventing the column portion 404 from being deformed. That is, the column portion 404 of the imaging device 40 fitted as shown in FIG. 14 and the fitting member 51 come into contact with each other, the claw portion 406 of the column portion 404 warps outward, and the urging member 9 moves from the claw portion 406. It prevents it from coming off. In this embodiment as well, the attachment portion (fitting member 51) when attaching the cellular phone 50 as the attached member to the holder 4 has a function of a reinforcing portion. There may be provided a reinforcing portion for preventing the above.

  The above-described embodiment is a preferred embodiment of the present invention. However, the present invention is not limited to this, and various modifications can be made without departing from the scope of the present invention. For example, in the above-described embodiment, the cam surface formed on the rotating member 8 is the first surface 803 and the second surface 804, but a plurality of surfaces having different heights in the optical axis direction are provided. The focal length of the lens may be adjusted more finely.

2 is a cross-sectional view showing a configuration of a camera module 1. FIG. 2 is a diagram illustrating a detailed configuration of a shutter device 30. FIG. It is the top view which looked at the shutter apparatus 30 from the top. 2 is a cross-sectional view illustrating a configuration of an imaging device 40. FIG. It is the front view which looked at the imaging device 40 from the front. It is the top view which looked at the holder 4 from the top. It is sectional drawing which shows the shape of the cut surface cut | disconnected by the AA 'line shown in FIG. It is the bottom view which looked at the holder 4 from the bottom. (A) is the top view which looked at the rotation member 8 from the top, (B) is the bottom view which looked at the rotation member 8 from the bottom. FIG. 4 is a diagram showing the shape of a cam surface formed on a rotating member 8. FIG. 4 is a diagram showing the shape of a cam surface formed on a rotating member 8. (A) is the top view which looked at the adjustment member 7 from the top, (B) is the bottom view which looked at the adjustment member 7 from the bottom. It is the side view which looked at the adjustment member 7 from the side. It is a figure which shows the fixing method of the imaging device 40 to the housing | casing of a portable terminal. It is sectional drawing which shows the structure of the conventional camera module.

Explanation of symbols

DESCRIPTION OF SYMBOLS 1 Camera module 2 Board | substrate 3 Image pick-up element 4 Holder 5 Lens holder 6 Lens 7 Adjustment member 8 Rotating member 9 Energizing member 10 Filter 11 Motor 12 Shutter board 13 Shutter blade 14 Control circuit 15 Rotor axis 16 Arm part 17 Actuation pin 18 Fixed axis 20 rib 21 opening 30 shutter device 50 mobile phone 51 fitting member 401 bottom surface portion 402 opening portion 403 inner cylindrical portion 403a outer peripheral surface 404 column portion 405 wall portion 406 claw portion 407 base member 408 opening 409 surrounding member 501 circular groove 501a inside Peripheral surface 502 Threaded portion 701 Threaded portion 702 Rotation stop 703 First protrusion 704 Second protrusion 705 Non-slip portion 801 Ring-shaped member 802 Lever member 803 First surface 804 Second surface 805 Third surface

Claims (3)

A lens holder for holding the lens;
A holder for holding the lens holder movably in the optical axis direction;
A lens position changing member that is interposed between the lens holder and the holder and that allows the lens holder to move in the optical axis direction;
A biasing member that presses the lens holder against the lens position changing member;
The holder includes an elastically deformable column portion and a claw portion that is provided on the column portion and clamps and fixes the biasing member between the lens holder and opens and closes an optical path to the lens. Attached members such as are attached,
The camera module according to claim 1, wherein the attached member is provided with a reinforcing portion that comes into contact with the pillar portion to prevent the pillar portion from being deformed. The camera module according to claim 1, wherein an attaching portion for fixing the attached member to the holder also serves as the reinforcing portion. A mobile terminal with a camera module mounted on the main body,
The camera module includes a lens holder that holds a lens, a holder that holds the lens holder so as to be movable in the optical axis direction, and the lens holder that is interposed between the lens holder and the holder in the optical axis direction. A lens position changing member that is movable, and a biasing member that presses the lens holder against the lens position changing member,
The mobile terminal according to claim 1, wherein the main body portion is provided with a reinforcing portion that abuts on the pillar portion to prevent the pillar portion from being deformed.

Images