Integrated spring for simultaneously supporting AF bracket and OIS bracket, and camera module with built-in integrated spring

Abstract

The present invention relates to an integrated spring for simultaneously supporting an AF holder and an OIS holder, and a camera module incorporating the same, the camera module of the present invention comprising an integrated spring which is simultaneously coupled to a housing, the OIS holder, and the AF holder, and which elastically restrains the AF holder and the OIS holder, the central axis of the lens module is parallel to the optical axis and coincides with the center of the optical channel. The camera module with the built-in integrated spring for simultaneously supporting the AF bracket and the OIS bracket according to the present invention, which is configured above, has the integrated spring for simultaneously elastically supporting the AF bracket and the OIS bracket, thereby reducing the number of parts, correspondingly simplifying the structure, and simplifying the assembly process.

Description

Technical Field

[0001] This invention relates to a camera module mounted on a portable electronic device, and more specifically, to a camera module with an integrated spring for simultaneously supporting an AF bracket and an OIS bracket, and the integrated spring being built into the camera module. The AF bracket and the OIS bracket are supported by an integrated spring, thus reducing the number of parts, thereby simplifying the structure and enabling a simplified assembly process. Background Technology

[0002] In recent years, smartphones and other portable electronic devices have incorporated a variety of cutting-edge technologies into their cameras. These technologies include autofocus (AF) functions that can automatically focus in a shorter time, as well as image stabilization functions.

[0003] Image stabilization is a function that helps users obtain a certain level of image quality even when the moving electronic device is shaken during shooting. This function is known to be electronic or optical.

[0004] Electronic image stabilization is a technology that improves captured images through software processing; while optical image stabilization (OIS) is a technology that corrects the position of lens modules or image elements caused by factors such as hand tremors through physical means, thereby preventing the subject from being reflected as shake in the image generated on the image sensor.

[0005] However, while optical image correction technology can be easily applied to digital cameras with relatively ample internal space, its application is inevitably limited in situations like smartphones where internal space is limited. Therefore, there is a current need for smaller image stabilization devices.

[0006] On the other hand, optical image stabilization devices include springs that elastically support the lens module. When the lens module is momentarily misaligned due to an external impact, the spring helps to return the lens module to the optical axis in a shorter time. Various types of springs perform this function. However, conventional springs have a drawback: as the lens module moves repeatedly, fatigue caused by bending changes accumulates and is easily transmitted to the spring.

[0007] As background art to inventions related to camera modules with image stabilization, Korean Patent Publication No. 10-1543717 (OIS Camera Module) is disclosed.

[0008] The disclosed camera module has the following structure: a lens barrel section on which a lens is mounted; a horizontal driver that moves the lens barrel section in a horizontal direction perpendicular to the optical axis; a sensor section that senses the amount of horizontal movement of the lens barrel section caused by the horizontal driver; a body that surrounds the lens barrel section; a vertical driver that moves the lens barrel section in the optical axis direction; and an intermediate unit that includes the lens barrel section. The horizontal driver contains an OIS coil disposed on one of the intermediate unit and the body, and an OIS magnet disposed on the other of the intermediate unit and the body. In the optical axis direction, the sensor section, the OIS coil, and the OIS magnet are located at different positions, with the OIS magnet positioned between the sensor section and the OIS coil. However, the aforementioned conventional OIS camera module suffers from drawbacks such as a large thickness and easy separation of the suspension components upon external impact. Summary of the Invention

[0009] Technical issues

[0010] The purpose of this invention is to provide a camera module with an integrated spring that simultaneously supports the AF bracket and the OIS bracket. The integrated spring that elastically supports both the AF bracket and the OIS bracket reduces the number of parts, thereby simplifying the structure and enabling a simplified assembly process.

[0011] Technical solution

[0012] As a technical solution to achieve the above objectives, the present invention provides a camera module with a built-in integrated spring for simultaneously supporting an AF bracket and an OIS bracket, comprising: a housing providing an upwardly open receiving space and forming an optical channel; an OIS bracket capable of moving in a direction orthogonal to the optical axis while mounted within the receiving space of the housing, and having a setting space corresponding to the optical channel; an AF bracket housed within the setting space and capable of position adjustment in the optical axis direction; a lens module mounted on the AF bracket; a drive unit that moves the AF bracket in the optical axis direction and moves the OIS bracket when it is eccentric, so that the center of the lens module is aligned with the center of the optical channel of the housing; and an integrated spring simultaneously connected to the housing, the OIS bracket, and the AF bracket, which elastically constrains the AF bracket and the OIS bracket to ensure that the central axis of the lens module is parallel to the optical axis and aligned with the center of the optical channel.

[0013] In addition, the outer shell, OIS bracket, and AF bracket are respectively provided with a first fixing part, a second fixing part, and a third fixing part. The integrated spring has an outer shell connecting part connected to the first fixing part, an OIS bracket connecting part connected to the second fixing part, and an AF bracket connecting part connected to the third fixing part. A curved part that elastically deforms with the movement of the OIS bracket is formed between the outer shell connecting part and the OIS bracket connecting part.

[0014] Furthermore, the outer shell joint, OIS bracket joint, and AF bracket joint are in the shape of a thin plate of a specified thickness and are located on the same plane. The two ends of the curved portion are integral with the outer shell joint and OIS bracket joint and are formed at a position lower than the plane.

[0015] In addition, the OIS support also has a bend receiving groove for accommodating the bend.

[0016] Meanwhile, the curved portion is U-shaped, V-shaped, W-shaped, or ring-shaped.

[0017] In addition, the AF bracket joint has: a drive arm that is integral with the OIS bracket joint and extends horizontally, and provides elastic force to the AF bracket; and an end fixing tab that is formed at the extended end of the drive arm and is engaged with the third fixing part of the AF bracket.

[0018] The effects of the invention

[0019] The camera module of the present invention, as described above, has an integrated spring that simultaneously supports the AF bracket and the OIS bracket. This reduces the number of parts, simplifies the structure, and simplifies the assembly process. Attached Figure Description

[0020] Figure 1 This is a perspective view of a camera module with a built-in integrated spring for simultaneously supporting the AF bracket and the OIS bracket, according to an embodiment of the present invention.

[0021] Figure 2 yes Figure 1 The image shows an exploded 3D view of the camera module.

[0022] Figure 3 It will Figure 2 The diagram shows the disassembled components of the housing, OIS bracket, AF bracket, and integrated spring.

[0023] Figure 4 It is shown Figure 2 The diagram shows the installation state of the integrated spring.

[0024] Figure 5 It will Figure 4A plan view of the integrated spring shown separately.

[0025] Figure 6 It will Figure 5 The diagram shows an enlarged view of the bent portion in the integrated spring.

[0026] Figure 7 This is a diagram illustrating a modified example of the bent portion in an integral spring according to an embodiment of the present invention. Detailed Implementation

[0027] The following description, in conjunction with the accompanying drawings, will provide a more detailed account of one embodiment of the present invention.

[0028] Essentially, the camera module of this invention, with its built-in integrated spring for simultaneously supporting both the AF and OIS brackets, possesses optical image stabilization correction functionality and incorporates an integrated spring. This integrated spring minimizes the impact of camera module shake by simultaneously providing elastic force to both the AF and OIS brackets. Specifically, it acts in a manner that aligns the central axis of the lens module 13 with the optical axis. By employing an integrated spring, the number of parts can be reduced compared to conventional camera modules, resulting in a simpler structure and a simplified assembly process.

[0029] Figure 1 This is a perspective view of a camera module 10 with an integrated spring built into it, which simultaneously supports the AF bracket and the OIS bracket, according to an embodiment of the present invention. Figure 2 yes Figure 1 An exploded 3D view of the camera module is shown. Furthermore, Figure 3 It will Figure 2 The diagram shows the disassembled components of the housing, OIS bracket, AF bracket, and integrated spring. Figure 4 It is shown Figure 2 A plan view showing the installed state of the integrated spring. Additionally, Figures 5 to 7 It is used for explanation Figure 1 A diagram illustrating the movement of an integrated spring.

[0030] As shown in the figure, the camera module 10 of this embodiment includes a housing 15, an OIS bracket 19, an AF bracket 21, a lens module 13, a drive unit, a pair of integrated springs 30, and a protective canister 11.

[0031] The housing 15 provides an upwardly opening receiving space 15b and has a light channel 15c at the bottom center. The housing 15 has a generally four-sided shape and is surrounded by a circuit board 17, which is part of the drive unit.

[0032] The basic function of the drive unit is to move the AF bracket 21 along the optical axis and to move the OIS bracket 19 when it is eccentric, so that the center of the lens module 13 is aligned with the center of the optical channel of the housing.

[0033] That is, the OIS bracket 19 may become eccentric, tilted, or rotate around the optical axis due to shaking in a direction orthogonal to the optical axis. Its function is to (almost instantaneously) return the OIS bracket 19 to its normal position when such unnecessary movement occurs. This return of the OIS bracket 19 to its normal position is also facilitated by the integrated spring 30. In other words, the integrated spring 30 assists the drive unit.

[0034] For reference, the drive unit moves the AF bracket 21 along the optical axis to enable the camera to focus on the subject.

[0035] The drive unit includes a circuit board 17, an X drive coil 17a, a Y drive coil 17b, a first sensor 17e, a second sensor 17f, an AF coil 21k, and four magnets 19g.

[0036] The circuit board 17 is a flexible printed circuit board (FPCB) in the form of a strip, which is attached and fixed to the outer side of the housing 15. In addition, the circuit board 17 has a terminal section (not shown). The terminal section is the part that receives power from the outside.

[0037] X-drive coil 17a and Y-drive coil 17b are connected to the circuitry of circuit board 17 and exposed towards the interior of housing 15. X-drive coil 17a is positioned opposite each other across optical channel 15c. Y-drive coil 17b is also positioned opposite each other across optical channel 15c. The connecting lines of the opposing X-drive coils 17a and the connecting lines of the Y-drive coil 17b are orthogonal to each other.

[0038] The first sensor 17e and the second sensor 17f are respectively disposed inside the X-drive coil 17a and the Y-drive coil 17b. The first sensor 17e and the second sensor 17f sense the movement of the OIS bracket 19. That is, the first sensor 17e senses the movement of the OIS bracket 19 in the X direction, and the second sensor 17f senses the movement of the OIS bracket 19 in the Y direction.

[0039] Furthermore, the AF coil 21k is disposed on the outer peripheral surface of the AF bracket 21. The AF coil 21k is connected to a terminal located inside the housing via an integral spring 30. When the AF bracket 21 is installed in the mounting space 19c of the OIS bracket 19, the AF coil 21k is arranged opposite to the four magnets 19g.

[0040] Finally, when the OIS bracket 19 and AF bracket 21 are correctly positioned within the housing 15, the AF coil 21k will be opposite the X drive coil 17a and Y drive coil 17b via the magnet 19g. The AF coil 21k shares the magnet 19g with the X drive coil 17a and Y drive coil 17b.

[0041] The AF coil 21k, X drive coil 17a, and Y drive coil 17b utilize the power applied through the circuit board 17 to output electromagnetic force and influence the opposing magnet 19g.

[0042] That is, when current is applied to the X drive coil 17a, the OIS bracket 19 moves along the X direction; when current is applied to the Y drive coil 17b, the OIS bracket 19 moves along the Y direction. The application of current to the X drive coil 17a and the Y drive coil 17b occurs when the camera module 10 vibrates, causing the first sensor 17e and the second sensor 17f to sense the movement of the OIS bracket 19. Furthermore, when current is applied to the AF coil 21k, it moves along the optical axis according to Fleming's left-hand rule.

[0043] The protective canister 11 is a cover that is detachably attached to the housing 15 and has a central channel 11a. The protective canister 11 serves to protect the parts housed within the housing 15.

[0044] On the other hand, first protrusions 15a, serving as first fixing parts, are formed on the four corners of the outer casing 15. The first protrusions 15a are cylindrical protrusions that protrude upwards and are inserted into fixing holes 31a provided in the outer casing joint 31 of the integral spring 30. The first protrusions 15a fix the outer casing joint 31 to the upper surface of the outer casing 15 in the state of being inserted into the fixing holes 31a.

[0045] The OIS bracket 19 can be moved in a direction orthogonal to the optical axis while being installed within the housing's receiving space, and has a setting space 19c corresponding to the optical channel 15c. The OIS bracket 19 includes a bracket body 19a in the form of a four-sided frame and four magnets 19g. The magnets 19g are permanent magnets, as described above.

[0046] The bracket body 19a is molded from synthetic resin and is inserted into the receiving space 15b of the outer shell 15. A space 19c is provided to accommodate the AF bracket 21. Furthermore, two second protrusions 19d are formed at each of the four corners of the upper part of the bracket body 19a. The second protrusions 19d are second fixing parts that insert into the fixing holes 35a of the OIS bracket coupling 35 formed in the integral spring 30. By inserting the second protrusions 19d into the fixing holes 35a, the connection between the OIS bracket coupling 35 and the OIS bracket 19 is maintained.

[0047] Furthermore, a curved portion receiving groove 19b is formed on the outer side of the second protrusion 19d. The curved portion receiving groove 19b is a space that opens upwards, such as... Figure 2 As shown, the curved portion 32 accommodates the integral spring 30. The curved portion 32 is accommodated in the curved portion receiving groove 19b, but does not contact the inner surface of the curved portion receiving groove 19b.

[0048] The AF bracket 21 is housed within the mounting space 19c and its position can be adjusted along the optical axis according to the direction of the induced current in the AF coil 21k. The AF bracket 21 has a bracket body 21a and an AF coil 21k.

[0049] The support body 21a is molded from synthetic resin and has four fixing slots 21e. Each fixing slot 21e is a third fixing part that engages with the AF support joint 37 of the integrated spring 30. The four fixing slots 21e are arranged at a 90-degree angle. Furthermore, the support body 21a has a lens module fixing space 21b. The lens module fixing space 21b is a space for accommodating and fixing the lens module 13. The lens module 13 is integrated with the AF support 21 and moves together with it.

[0050] The integrated spring 30 consists of two springs forming a pair, symmetrical about the lens module 13. The integrated spring 30 elastically constrains the AF bracket and OIS bracket in a state where it is simultaneously attached to the housing 15, OIS bracket 19, and AF bracket 21, so that the central axis of the lens module 13 is parallel to the optical axis and aligned with the center of the optical channel.

[0051] The "optical axis" is the straight line component of incident light from the subject toward the image sensor (not shown, located below the optical channel 15c in the housing 15), referring to the direction perpendicular to the image sensor. Additionally, the "central axis" of the lens module is a straight line connecting the centers of the multiple lenses built into the lens module. In standby mode (without external force applied), the "central axis" passes through the center point of the optical channel 15c. Simultaneously, the "center point" of the optical channel is the center of the circle formed by the inner circumferential surface of the optical channel.

[0052] The one-piece spring 30 can be made of a variety of materials, such as rolled copper foil or spring material.

[0053] The integrated spring 30 has an integrally formed housing joint 31, an OIS bracket joint 35, and an AF bracket joint 37.

[0054] Each outer shell connecting part 31 is connected to the first fixing part, i.e., the first protrusion 15a, on the top of the four corners of the outer shell 15. In order to achieve the connection with the first protrusion 15a, the outer shell connecting part 31 is formed with a fixing hole 31a. By aligning the fixing hole 31a with the first protrusion 15a and fitting it in, the outer shell connecting part 31 can be installed on the first protrusion 15a.

[0055] The OIS bracket coupling portion 35 is located on the upper part of the opposite side of the OIS bracket 19, and each end of it has two fixing holes 35a. The fixing holes 35a are holes for receiving the second protrusion 19d. By inserting the second protrusion 19d into the fixing holes 35a, the OIS bracket coupling portion 35 can be fixed on the OIS bracket 19.

[0056] In addition, the AF bracket joint 37 is a part supported by the third fixing part, namely the fixing groove 21e, formed on the AF bracket 21, and has a drive arm 37a and an end fixing protrusion 37b.

[0057] The drive arm 37a is an integral part of the OIS bracket joint 35, extends horizontally, and provides elastic force to the AF bracket 21 in an arc shape. In this figure, the drive arm 37a is arc-shaped, but is not limited to an arc. For example, it can be a straight line or other shapes.

[0058] An end-fixing tab 37b is formed at the extended end of the drive arm 37a and is inserted into and fixed in a fixing groove 21e formed on the AF bracket. The AF bracket joint 37 elastically deforms up and down as the AF bracket 21 moves along the optical axis. The end-fixing tab 37b is also connected to the AF coil 21k.

[0059] The outer shell joint 31, the OIS bracket joint 35, and the AF bracket joint 37 are in the shape of thin plates of a specified thickness and are located on the same plane.

[0060] On the other hand, a bending portion 32 is provided between the housing joint 31 and the OIS bracket joint 35. The bending portion 32 elastically deforms as the OIS bracket 19 moves. For example, when the OIS bracket 19 moves, tilts, or rotates in a direction orthogonal to the optical axis, the bending portion 32 undergoes an elastic change and applies an elastic restoring force to the OIS bracket 19. The elastic restoring force refers to the elastic force that keeps the OIS bracket 19 in the correct position.

[0061] The bent portion 32 is a wire-type component whose two ends are integral with the housing joint portion 31 and the OIS bracket joint portion 35, and is bent into a generally U-shaped form. The bent portion 32 is located at the lower part relative to the plane including the housing joint portion 31 and the OIS bracket joint portion 35. That is, it protrudes downward from between the housing joint portion 31 and the OIS bracket joint portion 35. In addition, as described above, each bent portion 32 is received in the bent portion receiving groove 19b of the OIS bracket 19.

[0062] On the other hand, the width of the drive arm, which is integral with the OIS bracket and extends horizontally to provide elastic force to the AF bracket, can be smaller than the width of the OIS bracket joint. This is because the drive arm is used to implement the OIS function, and its width can be made smaller so that its elastic force is superior to that of the AF bracket.

[0063] As explained above, the bent portion 32 elastically deforms as the OIS support 19 moves. Figure 6 This is a diagram showing the elastic deformation of the bent portion 32 when the OIS support joint 35 moves in a direction orthogonal to the optical axis. Figure 6 The solid lines in the diagram represent the standby state, while the dashed lines represent the state during elastic deformation.

[0064] Figure 7 This is a diagram illustrating a modified example of the bent portion in an integral spring according to an embodiment of the present invention.

[0065] Figure 7 The curved section 32 shown in figure a has a V-shape. Figure 7 The curved portion 32 shown in b is roughly W-shaped. Additionally, Figure 7 The curved portion 32 in Figure 8c is annular. The curved portion 32 in Figure 8c is formed by rotating the portion used as the curved portion in the material of the integral spring 30 by 540 degrees.

[0066] As long as it can flexibly support the AF bracket 21 and the OIS bracket 19, the shape of the curved portion 32 can be arbitrarily changed. For example, in this embodiment, the curved portion 32 is a single piece, but it can also be made into two, three, or more than four pieces. In addition, the width of the curved portion 32 can also be made wider.

[0067] The camera module 10 of this embodiment, which has the above structure, operates as follows.

[0068] First, when the user begins taking a photo using the smartphone's camera function, the AF bracket 21 moves along the optical axis according to the distance to the subject. The integrated spring 30 also participates in the movement of the AF bracket 21. That is, the AF bracket joint 37 of the integrated spring 30 elastically deforms. During the movement of the AF bracket 21, the OIS bracket 50 attempts to maintain its correct position under the action of the integrated spring 30. The correct position refers to the position where the optical axis aligns with the central axis of the optical channel 15c.

[0069] However, if the camera module 10 shakes during photo capture, the bent portion 32 of the integrated spring 30 will elastically deform as the OIS bracket 19 moves. Furthermore, the first sensor 17e and the second sensor 17f sense the movement of the OIS bracket 19. When the movement of the OIS bracket 19 is sensed, the X-drive coil 17a and the Y-drive coil 17b will instantly activate, causing the eccentric OIS bracket 19 to return to its correct position. At this time, the bent portion 32 will also elastically recover, assisting the OIS bracket 19 in returning to its correct position. By repeating the above process, the problem caused by the shaking of the camera module 10 can be solved.

[0070] The present invention has been described in detail above through specific embodiments, but the present invention is not limited to the above embodiments. Within the scope of the technical concept of the present invention, those skilled in the art can make various modifications to it.

[0071] Industrial applicability

[0072] This invention can be applied to portable electronic devices equipped with cameras.

Claims

1. An integrated spring for simultaneously supporting an AF bracket and an OIS bracket, which is simultaneously integrated into the housing, OIS bracket, and AF bracket of a camera module, and elastically constrains the AF bracket and OIS bracket to ensure that the central axis of the lens module is parallel to the optical axis and aligned with the center of the optical channel, wherein the camera module includes a housing having a first fixing part, an OIS bracket and an AF bracket respectively disposed within the housing and having a second fixing part and a third fixing part, and the integrated spring for simultaneously supporting the AF bracket and OIS bracket is characterized in that... It has a housing joint portion that is attached to the first fixing portion, an OIS bracket joint portion that is attached to the second fixing portion, and an AF bracket joint portion that is attached to the third fixing portion. A curved portion is formed between the housing joint and the OIS bracket joint, which elastically deforms as the OIS bracket moves.

2. The integrated spring for simultaneously supporting the AF bracket and the OIS bracket according to claim 1, characterized in that, The outer shell joint, the OIS bracket joint, and the AF bracket joint are all in the shape of thin plates of a specified thickness and are located on the same plane. The two ends of the curved portion are integrated with the outer shell joint and the OIS bracket joint, and are formed at a position lower than the plane.

3. The integrated spring for simultaneously supporting the AF bracket and the OIS bracket according to claim 2, characterized in that, The OIS support also has a bend receiving groove for accommodating the bend.

4. The integrated spring for simultaneously supporting the AF bracket and the OIS bracket according to claim 2, characterized in that, The curved portion is U-shaped, V-shaped, W-shaped, or ring-shaped.

5. The integrated spring for simultaneously supporting the AF bracket and the OIS bracket according to claim 2, characterized in that, The AF bracket joint has: The drive arm, which is integral with the OIS bracket and extends horizontally, provides elastic force to the AF bracket; and An end-fixing tab is formed at the extended end of the drive arm and is attached to the third fixing part of the AF bracket.

6. The integrated spring for simultaneously supporting the AF bracket and the OIS bracket according to claim 5, characterized in that, The width of the drive arm is smaller than the width of the OIS bracket joint.

7. A camera module with a built-in integrated spring for simultaneously supporting both an AF bracket and an OIS bracket, characterized in that, include: The outer shell provides an upward-opening accommodating space and forms a light channel; The OIS bracket is movable in a direction orthogonal to the optical axis while being installed within the housing space, and has a mounting space corresponding to the optical channel. An AF bracket, which is housed within the mounting space and is capable of position adjustment along the optical axis; The lens module is mounted on the AF bracket; The drive unit moves the AF bracket in the optical axis direction and moves the OIS bracket when the OIS bracket is off-center, so that the center of the lens module is aligned with the center of the housing optical channel. as well as An integrated spring, which is simultaneously incorporated into the housing, OIS bracket, and AF bracket, applies force by elastically constraining the AF bracket and OIS bracket in a manner that ensures the central axis of the lens module is parallel to the optical axis and aligned with the center of the optical channel.

8. The camera module with a built-in integrated spring for simultaneously supporting the AF bracket and the OIS bracket as described in claim 7, characterized in that, The outer casing, OIS bracket, and AF bracket are respectively provided with a first fixing part, a second fixing part, and a third fixing part. The integrated spring has a housing joint portion connected to the first fixing portion, an OIS bracket joint portion connected to the second fixing portion, and an AF bracket joint portion connected to the third fixing portion. A curved portion is formed between the outer shell joint and the OIS bracket joint, which elastically deforms as the OIS bracket moves.

9. The camera module with a built-in integrated spring for simultaneously supporting the AF bracket and the OIS bracket as described in claim 8, characterized in that, The outer shell joint, OIS bracket joint, and AF bracket joint are in the shape of thin plates of a specified thickness and are located on the same plane. The two ends of the curved portion are integrated with the outer shell joint and the OIS bracket joint, and are formed at a position lower than the plane.

10. The camera module with a built-in integrated spring for simultaneously supporting the AF bracket and the OIS bracket as described in claim 9, characterized in that, The OIS support also has a bend receiving groove for accommodating the bend.

11. The camera module with a built-in integrated spring for simultaneously supporting the AF bracket and the OIS bracket as described in claim 9, characterized in that, The curved portion is U-shaped, V-shaped, W-shaped, or ring-shaped.

12. The camera module with a built-in integrated spring for simultaneously supporting the AF bracket and the OIS bracket as described in claim 9, characterized in that, The AF bracket joint has: The drive arm, which is integral with the OIS bracket and extends horizontally, provides elastic force to the AF bracket; and An end-fixing tab is formed at the extended end of the drive arm and is attached to the third fixing part of the AF bracket.

13. The camera module with a built-in integrated spring for simultaneously supporting the AF bracket and the OIS bracket as described in claim 12, characterized in that, The width of the drive arm is smaller than the width of the OIS bracket joint.

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