KR20160010201A - Camera actuator with function of auto-focus and image stabilize - Google Patents

Abstract

Disclosed is a camera actuator that has, separated from each other, a focus adjustment driving unit that generates the driving force for bringing a camera into focus and an image stabilization driving unit that generates the driving force for stabilizing an image, thereby conveniently controlling autofocus and image stabilizing function. To this end, a camera actuator according to the present invention comprises: a base, placed above an image sensor, and which adjusts the location of a lens with reference to the image sensor, to adjust focus of the camera or stabilize the image; a first carrier that has the lens and moves, above the base, in the direction of the optical axis of the lens; a second carrier that moves, above the base, in the direction perpendicular to the optical axis; a first driving unit, placed on one side of the first carrier, and which includes a first magnet and first coil that generate the driving force for moving the first carrier; a second driving unit, placed on the other side of the first carrier, separated from the first driving unit, and which includes a second magnet and second coil that generate the driving force for moving the second carrier; an elastomeric member, placed above the second carrier, and which sends back the second carrier to the original position; and a Hall sensor, placed beneath the second magnet, and which senses the displacement of the second carrier.

Description

[0001] The present invention relates to a camera actuator having an auto focus and an image stabilization function,

The present invention relates to a camera actuator having an automatic focus adjustment and an image stabilization function. The camera actuator includes a focus adjustment driving unit for generating a driving force for adjusting a focus of a camera and an image stabilization driving unit for generating a driving force for correcting the camera shake, And a camera actuator that is easy to control for camera-shake correction.

A portable terminal having voice communication as a main function can use various functions in addition to voice communication.

In particular, the camera function has become an essential function in a portable terminal.

As the portable terminal is developed, the number of camera pixels of the portable terminal is increased and supplementary functions for taking a picture are added, so that a high quality image can be conveniently photographed using the portable terminal.

On the other hand, due to the characteristics of the portable terminal, since the internal space in which the camera module can be mounted is limited, the overall size of the camera module must be kept compact while realizing high-resolution and high-performance camera functions.

Japanese Patent Application Laid-Open No. 10-2010-0066678 discloses a camera module having a camera-shake correction device installed in a portable terminal.

1 is a sectional view of a camera module having a conventional camera shake correction device.

A camera module having a conventional camera shake correction device includes a lens unit 110, a housing 120, an autofocus driving unit 130, a suspension member 140, a case 150, a circuit board 160 and a compensating actuator 170 ).

Specifically, the autofocus driving unit 130 is for driving the lens unit 110 in the direction of the optical axis, and is composed of a first coil 131 and a first magnet 132.

The first coil 131 is wound on the outer circumferential surface of the lens unit 110 and the first magnet 132 is installed on the housing 120 so as to face the first coil 131.

The automatic focus driving unit 130 moves the lens unit 110 in the Z direction by an electromagnetic force generated between an electric field caused by a current flowing through the first coil 131 and a magnetic field generated by the first magnet 132, And linearly moves in the optical axis direction.

The compensating actuator 170 compensates for the horizontal swinging of the housing 120 in the X-Y direction due to camera shake. The compensating actuator 170 includes a second coil 171, a second magnet 172, and a metal yoke 173.

The second coil 171 is wound in a rectangular or square shape and installed on the four side walls of the housing 120 to allow current to flow therethrough.

The second magnet 172 is installed on the side wall of the case 150 facing the four second coils 171 and the magnetic force of the second magnet 172 is transmitted to the second coil 171 by the metal yoke 173. [ .

The auto-focus driving unit 130 and the compensation actuator 170 adjust the focus or the shaking motion by using the electromagnetic force generated in accordance with the direction of the magnetic field when a current flows in the coil affected by the magnetic field.

However, in the conventional camera module, as shown in FIG. 1, the first coil 131, the first magnet 132, the second coil 171, and the second magnet 172 are arranged adjacent to each other, The first coil 131 is affected not only by the first magnet 132 but also by the magnetic field generated by the second magnet 172 and the second coil 271 is also affected by not only the second magnet 172, Is influenced by the magnetic field generated by the magnetic field generator 132.

If the coil is influenced by a magnetic field generated by a magnet other than a magnetic field generated from a predetermined magnet to generate an electromagnetic force, the desired electromagnetic force may be lost.

This loss of electromagnetic force makes it difficult to precisely control the camera module at a high speed, which makes it difficult to implement a high-performance camera.

Since the first coil 131, the first magnet 132, the second coil 171 and the second magnet 172 are arranged adjacently to each other, the autofocus driving unit 130 and the compensation actuator 170, So that the camera module is disadvantageously miniaturized.

SUMMARY OF THE INVENTION The present invention has been made to solve the above-mentioned problems, and it is an object of the present invention to provide a camera actuator having an automatic focus adjustment and an image stabilization function capable of fast and precise control for adjusting focus of a camera and correction of camera- .

In order to achieve the above object, a camera actuator having an automatic focus adjustment and an image stabilization function according to the present invention adjusts a position of a lens with respect to an image sensor to adjust a focus of the camera, Base; A first carrier on which a lens is mounted and which moves in an optical axis direction of the lens from an upper portion of the base; A second carrier moving in a direction perpendicular to the optical axis direction from an upper portion of the base; A first driving unit including a first magnet and a first coil disposed on either side of the first carrier to generate a driving force for moving the first carrier; A second driving unit disposed on the other side of the first carrier and separated from the first driving unit and including a second magnet and a second coil for generating a driving force for moving the second carrier; An elastic member disposed on the second carrier to return the second carrier to an original position; And a Hall sensor disposed under the second magnet to sense a change in position of the second carrier.

A camera actuator having an auto-focus adjustment and an image stabilization function according to the present invention includes a first ball guide disposed between the first and second carriers to reduce a frictional force generated between the first and second carriers, ; And a second ball guide disposed between the base and the second carrier to reduce frictional force generated between the base and the second carrier while supporting the second carrier.

And the base includes a steel plate to exert an attractive force between the base and the second magnet, and the second ball guide supports the second carrier in a direction opposite to the attraction force acting on the second magnet.

A guide protrusion is formed on both sides of the outer circumferential surface of the first carrier, a drive hole in which the first carrier is inserted is formed in the second carrier, and the guide protrusions and the guide protrusions Wherein the first driving part is located in a direction in which the first ball guide is disposed with respect to the guide protrusion and the second driving part is disposed in a direction in which the first ball guide is disposed with respect to the guide protrusion, And is located in the direction opposite to the direction in which the driving portion is located.

The yoke is mounted on the second carrier so that attraction force acts between the second carrier and the first magnet, and the first ball guide supports the guide protrusion in a direction opposite to the attraction force acting on the first carrier.

The second coil is wound around the insertion groove, and the size of the insertion groove is larger than the size of the second magnet.

The second magnet is inserted into the insertion groove when a force flows between the second coil facing the second coil and a current flowing in one direction to the second coil.

A camera actuator having an auto focus adjustment function and an image stabilization function according to the present invention includes a cover coupled to the base and covering the first carrier and the second carrier; A spacer mounted on the cover and having a plurality of spaced grooves penetrating upward and downward; A first circuit board on which the first coil is mounted; And a second circuit board mounted between the cover and the spacer, wherein a pressure pad is disposed between the cover and the second circuit board, and the second circuit board is provided with the spacing groove And the elastic member is mounted on the second carrier and connected to the first circuit board and the other end is mounted on the protrusion through the spacing groove and connected to the second circuit board.

One end of the elastic member is located under one of the spaced grooves, and each of the elastic members is soldered to the first circuit substrate.

The cross-sectional shape of the elastic member is equal to or longer than the length in the longitudinal direction parallel to the optical axis direction, which is longer than the length in the transverse direction.

The camera actuator having the auto focus adjustment and camera shake correction function of the present invention has the following effects.

By separating the first driving portion and the second driving portion, it is possible to minimize the driving force for adjusting the focus of the camera generated by the first driving portion and the driving force for correcting the shaking motion generated by the second driving portion The operation of the first carrier and the second carrier can be easily controlled, and the reaction speed of the actuator for adjusting the focus of the camera or correcting the camera-shake can be increased.

1 is a sectional view of a camera module having a conventional camera shake correction device.
2 is a perspective view of a camera actuator having an auto focus adjustment function and an image stabilization function according to an embodiment of the present invention;
3 is an exploded perspective view of a camera actuator having an auto-focus adjustment function and an image stabilization function according to an embodiment of the present invention.
4 is a sectional view taken along the line AA in Fig.
Fig. 5 is an exploded perspective view showing another portion D of Fig. 3; Fig.
6 is a sectional view taken along the line BB in Fig.
7 is a cross-sectional view taken along the line CC in Fig.
8 is a perspective view of a camera actuator having an auto-focus adjustment function and an image stabilization function except a cover and a second circuit board according to an embodiment of the present invention.

The present invention relates to a camera actuator for adjusting a focus of a camera by adjusting a position of a lens with respect to the image sensor or correcting camera shake. Such a camera actuator is made compact to be mounted on the portable terminal, and the camera performance of the portable terminal is influenced.

Hereinafter, the present invention will be described in detail with reference to the accompanying drawings.

Fig. 5 (a) is an exploded perspective view showing one part of Fig. 3 in an exploded perspective view, and Fig. 5 (b) is an exploded perspective view in the other direction, FIG. 7 (a) is a cross-sectional view taken along line CC in Fig. 2, and Fig. 7 (b) is a cross-sectional view showing a state in which a second carrier is moved in Fig. 8 is a perspective view of a camera actuator having an auto-focus adjustment function and a camera-shake correction function except for a cover and a second circuit board in order to show soldering portions of the first circuit board and the elastic member.

2 to 8, a camera actuator having an automatic focus adjustment and an image stabilization function according to an embodiment of the present invention includes a base 200, a hall sensor 210, a cover 300, a spacer 310, The first carrier 400, the second carrier 500, the first ball guide 610, the second ball guide 620, the first driving unit 700, the second driving unit 800, and the elastic member 900, .

The base 200 is disposed on top of an image sensor (not shown). The base 200 includes a steel plate 201 so that attraction force acts between the base 200 and the second magnet 810. Specifically, the base 200 is formed into a rectangular plate shape as shown in FIG. 3, and a steel plate 201 is mounted inside the base 200 as shown in FIG. In the base 200, three exposure holes 202 are formed so that the steel plate 201 is exposed to the upper portion of the base 200. A second ball guide 620 is disposed in the exposure hole 202. A more detailed description will be described later with the second ball guide 620.

The Hall sensor 210 is disposed below the second magnet 810 to sense a change in position of the second carrier 500. 3, a lower circuit board 211 is mounted on an upper portion of the base 200, and a hall sensor 210 is mounted on a lower circuit board 211. As shown in FIG. The hall sensor 210 is disposed at a lower portion of the second magnet 810 and senses a change in the magnetic field of the second magnet 810 to detect a change in the position of the second carrier 500. That is, the hall sensor 210 senses a change in the magnetic field of the second magnet 810 and provides feedback information on the position of the second carrier 500 moving for camera shake compensation. The hall sensor 210 is positioned near the lower portion of the second magnet 810 to improve the linearity of the output information according to the change of the position of the second magnet 810.

The cover 300 is coupled to the base 200 to cover the first carrier 400 and the second carrier 500.

The spacer 310 is mounted on the inner surface of the cover 300 and is spaced from the second carrier 500. 3, the spacers 310 are formed in a rectangular flat plate shape and have a plurality of spaced apart grooves 311 penetrating upward and downward.

The first carrier 400 is mounted with a lens (not shown) and moves in the direction of the optical axis of the lens from the top of the base 200. Guide protrusions 410 protrude from both sides of the outer circumferential surface of the first carrier 400. 5, the guide protrusions 410 are elongated in the vertical direction, and two guide protrusions 410 are formed on both sides of the first carrier 400, and the two guide protrusions 410 protrude in opposite directions have. Further, a mounting portion 420 is formed on the outer circumferential surface of the first carrier 400. The mounting portion 420 is formed in one direction with respect to the guide protrusion 410, and the first magnet 710 is mounted. 6, when the straight line L passing through the center of the first carrier 400 and the two guide protrusions 410 is drawn, the mounting portion 420 is positioned on the first carrier (refer to FIG. 6) 400 (right side). The straight line L is an arbitrary line for dividing the space around the first carrier 400 and the first carrier 400 into two parts. The mounting portion 420 serves as yoke for inducing the flow of the magnetic field formed by the first magnet 710 and concentrating the magnetic field around the first coil 720.

The second carrier 500 moves in the vertical direction in the direction of the optical axis from the top of the base 200. [ 5, a driving hole 501 in which the first carrier 400 is inserted is formed in the second carrier 500, and a guide protrusion 410 is formed on the inner side surface in which the driving hole 501 is formed. And a guide groove 510 into which the first ball guide 610 is inserted. The guide groove 510 is formed long up and down so that the first carrier 400 can move up and down. The second carrier 500 is formed with an insertion hole 520 into which the first coil 720 is inserted. The insertion hole 520 faces the mounting portion 420. The yoke 530 is mounted on the second carrier 500 so that attraction force acts between the second carrier 500 and the first magnet 710. The first circuit substrate 540 is mounted on the outer circumferential surface of the second carrier 500 on which the insertion hole 520 is formed and the yoke 530 is mounted on the outer surface of the first circuit substrate 540. Optionally, the yoke 530 may be mounted directly to the second carrier 500. The second carrier 500 is formed with a mounting groove 550 on which the second magnet 810 is mounted. The mounting groove 550 is formed on the other side (left side) of the first carrier 400 with respect to the straight line L as shown in FIG. That is, the insertion hole 520 and the mounting groove 550 are formed in opposite directions with respect to the straight line L. [ A contact plate 560, which contacts the second ball guide 620, is mounted on the lower portion of the second carrier 500.

The first ball guide 610 is disposed between the first carrier 400 and the second carrier 500 and supports the first carrier 400 and the second carrier 500 In the direction of the arrow. The first ball guide 610 is inserted into the guide groove 510 together with the guide protrusion 410 and is inserted in the direction opposite to the attraction force F acting on the first carrier 400 as shown in FIG. And supports the guide protrusion 410. 4, the first ball guide 610 is inserted into the guide protrusion 410 formed on both sides of the second carrier 500, and one first ball guide 610 is vertically And the diameter of the ball member located at the center of the three ball members is smaller than the diameter of the other two ball members.

The second ball guide 620 is disposed between the base 200 and the second carrier 500 to support the second carrier 500 while allowing the second carrier 500 to move forward, ) And the second carrier (500). Specifically, as shown in FIG. 4, the second ball guide 620 is inserted into the exposure hole 202 so that the lower portion contacts the steel plate 201, the upper portion contacts the contact plate 560, Lt; RTI ID = 0.0 > 810 < / RTI > The second ball guide 620 is in direct contact with the base 200 and the second carrier 500 made of a synthetic resin material or the like without contacting the steel plate 201 and the contact plate 560 made of a metal The portion of the second carrier 500 that contacts the second ball guide 620 is worn out due to the continuous friction, so that the second carrier 500 can not be precisely controlled or smoothly moved . The steel plate 201 and the contact plate 560 are disposed at a portion where the second ball guide 620 is in contact with the second carrier 500 to prevent wear of the base 200 and the second carrier 500, So that the position can be precisely controlled. It is preferable that the second ball guide 620 is composed of three or more to stably support the second carrier 500.

The first driving unit 700 includes a first magnet 710 and a first coil 720 disposed on either side of the first carrier 400 to generate a driving force for moving the first carrier 400 . Also, the first driver 700 may include a driver 730 having a built-in hall sensor. As shown in FIG. 6, the first driving unit 700 is located in a direction in which the first ball guide 610 is disposed with respect to the guide protrusion 410. 7, the first magnet 710 is mounted on the mounting portion 420 formed on the first carrier 400 and the first coil 720 is mounted on the first circuit board 540 And inserted into the insertion hole 520 formed in the second carrier 500. Accordingly, the first magnet 710 and the first coil 720 are disposed to face each other. The attraction force acts between the first magnet 710 and the yoke 530 mounted on the second carrier 500 to pull the first carrier 400 in the direction of the yoke 530. At this time, the first ball guide 610 inserted in the guide groove 510 together with the guide protrusion 410 supports the guide protrusion 410 in the direction opposite to the attraction force. Accordingly, the guide protrusion 410 is held in close contact with the first ball guide 610. When a current flows through the first coil 720 located within the magnetic field formed by the first magnet 710, the first driving unit 700 generates the electromagnetic force to move the first carrier 400 in the optical axis direction, The focus is adjusted.

The second driving unit 800 includes a second magnet 810 disposed on the other side of the first carrier 400 and separated from the first driving unit 700 and generating a driving force for moving the second carrier 500, And a second coil 820. The second coil 820 is positioned in a direction opposite to a direction in which the first driving unit 700 is positioned with respect to the guide protrusion 410 as shown in FIG. Specifically, as shown in FIG. 7, the second magnet 810 is a monopole magnet, inserted into a mounting groove 550 formed in the second carrier 500, and positioned on the hall sensor 210. The second coil 820 is mounted on the inner surface of the second circuit board 830 and is arranged to face the second magnet 810. The second circuit board 830 is mounted between the cover 300 and the spacer 310 and the cover 300 covers the first carrier 400 and the second carrier 500 and is coupled to the base 200 And is bent to surround the outside of the second carrier 500. The second coil 820 is wound around the insertion groove 821 and the insertion groove 821 is larger than the second magnet 810. The current flows in one direction to the second coil 820 located in the magnetic field formed by the second magnet 810 and the second magnet 810 and the second coil 820 facing the second coil 820, The second magnet 810 is moved and inserted into the insertion groove 821 as shown in FIG. 7 (b), and the second carrier 500 is moved in the vertical direction in the optical axis direction, that is, Direction. The second magnet 810 is positioned above the steel plate 201 and the second carrier 500 is attracted to the second ball guide 620 by the attractive force acting between the second magnet 810 and the steel plate 201. [ Respectively.

The elastic member 900 is disposed on top of the second carrier 500 to return the horizontally moving second carrier 500 to its original position. Specifically, in order to facilitate the deformation of the elastic member 900 in the horizontal direction, the cross-sectional shape of the elastic member 900 is formed such that the length in the longitudinal direction parallel to the optical axis direction is longer or equal to the length in the transverse direction. One end of the elastic member 900 is mounted on the second carrier 500 and connected to the first circuit board 540 and the other end of the elastic member 900 is mounted on the protrusion 831 through the spacing groove 311, 830). As shown in FIG. 8, one end of the elastic member 900 is located under one of the spacing grooves 311, and each of the elastic members 900 is connected to the first circuit board 540 And are connected by soldering. The elastic member 900 serves as a connection path for connecting power to the first driving unit 700. The first elastic member 900 and the first circuit substrate 540 are connected to each other, It is easy to connect. The other end of the elastic member 900 is connected to the second circuit board 830 by being positioned in a spacing groove 311 other than the spacing groove 311 where one end of the elastic member 900 is located. 7, a pressure pad 910 is disposed between the cover 300 and the second circuit board 830 and a pressure pad 910 is disposed on the second circuit board 830 by a pressure pad 910 And the other end of the elastic member 900 is connected to the lower surface of the protruding portion 831. The protruding portion 831 protrudes from the recessed groove 311, The other end of the elastic member 900 and the second circuit board 830 are vertically spaced apart by the spacer 310. Therefore, in order to connect the other end of the elastic member 900 to the second circuit board 830, 900 may be excessively deformed and damaged. A pressing pad 910 is disposed between the cover 300 and the second circuit board 830 to prevent breakage of the elastic member 900 and the second circuit board 830 is pressed by the pressing pad 910 The protrusion 831 protruding downward is formed so that the gap between the protrusion 831 and the other end of the elastic member 900 is reduced so that the elastic part is connected to the second circuit board 830 without being excessively deformed . This pressure pad 910 and the protrusion 831 are also shown in Fig. Since the elastic member 900 as described above is located on the upper portion of the second carrier 500, it is easy to design the lower structure of the second carrier 500.

Hereinafter, an operation method of a camera actuator having an auto-focus adjustment and an image stabilization function according to an embodiment of the present invention will be described.

The guide protrusion 410 and the first ball guide 540 are moved by the attraction force acting between the first magnet 710 and the yoke 530 in the initial state in which no current flows in the first coil 720 and the second coil 820, The contact plate 560 and the second ball guide 620 are kept in close contact with each other by the attraction force acting between the second magnet 810 and the steel plate 201 .

When a current flows through the first coil 720, a driving force for moving the first carrier 400 up and down is generated, and the first carrier 400 moves along the guide groove 510 by the driving force. The focus of the camera can be adjusted by adjusting the distance between the lens mounted on the first carrier 400 and the image sensor.

When vibration is generated by the camera user, power is applied to the second coil 820 to cause a current to flow and a driving force to move the second carrier 500 in the forward, backward, left and right horizontal directions is generated, The second carrier 500 to which the first carrier 400 is coupled moves in a direction perpendicular to the optical axis of the lens, so that the camera shake can be corrected.

The actuator of the present invention as described above uses electromagnetic force generated by a coil through which a current flows and a magnet that forms a magnetic field around the coil. The actuator includes a first driving unit 700 for adjusting the focus of the camera, The second drive unit 800 for the second actuator is separated from the inner space of the actuator. The first coil 720 is affected by the magnetic field generated by the second magnet 810 and the drive force for adjusting the focus of the camera is decreased or the second coil 820 is generated in the first magnet 710 It is possible to prevent the driving force for camera-shake correction from being reduced due to the influence of the magnetic field, so that it is easy to control the operation of the first carrier 400 and the second carrier 500 by increasing the respective driving forces, The reaction speed of the actuator for adjusting or correcting the shaking motion can be increased.

The camera actuator having the auto-focus adjustment function and the camera-shake correction function according to the present invention is not limited to the above-described embodiments, and can be variously modified within the scope of the technical idea of the present invention.

100: Actuator,
200: Base, 201: Steel plate, 202: Exposure hole, 210: Hall sensor, 211: Lower circuit board,
300: cover, 310: spacer, 311:
400: first carrier, 410: guide projection, 420: mounting portion,
The present invention relates to a semiconductor device and a method of manufacturing the same, and more particularly, to a semiconductor device having a first carrier, a second carrier, a driving hole, a guide groove,
610: first ball guide, 620: second ball guide,
700: first driving unit, 710: first magnet, 720: first coil, 730: driver,
A second coil, 821: an insertion groove, 830: a second circuit board, 831: a protrusion,
900: elastic member, 910: pressure pad,

Claims (10)

1. A camera actuator having an automatic focus adjustment and an image stabilization function for adjusting a focus of a camera by adjusting a position of a lens with respect to an image sensor,
A base disposed on top of the image sensor;
A first carrier on which a lens is mounted and which moves in an optical axis direction of the lens from an upper portion of the base;
A second carrier moving in a direction perpendicular to the optical axis direction from an upper portion of the base;
A first driving unit including a first magnet and a first coil disposed on either side of the first carrier to generate a driving force for moving the first carrier;
A second driving unit disposed on the other side of the first carrier and separated from the first driving unit and including a second magnet and a second coil for generating a driving force for moving the second carrier;
An elastic member disposed on the second carrier to return the second carrier to an original position; And
And a Hall sensor disposed at a lower portion of the second magnet to sense a change in position of the second carrier. The method according to claim 1,
A first ball guide disposed between the first and second carriers to reduce a frictional force generated between the first and second carriers; And
And a second ball guide disposed between the base and the second carrier for supporting the second carrier and reducing frictional force generated between the base and the second carrier. Camera actuator with function. The method of claim 2,
The base includes a steel plate so that attraction force acts between the base and the second magnet,
And the second ball guide supports the second carrier in a direction opposite to the attraction force acting on the second magnet. The method of claim 2,
Guide projections are formed on both sides of the outer circumferential surface of the first carrier,
A guide hole into which the guide protrusion and the first ball guide are inserted is formed on an inner surface of the second carrier on which the drive hole is formed,
Wherein the first driving portion is located in a direction in which the first ball guide is disposed with respect to the guide projection,
Wherein the second driving unit is located in a direction opposite to a direction in which the first driving unit is positioned with respect to the guide protrusion. The method of claim 4,
A yoke is mounted on the second carrier so that attraction force acts between the second carrier and the first magnet,
Wherein the first ball guide supports the guide protrusion in a direction opposite to the attraction force acting on the first carrier. The method according to claim 1,
The second coil is wound around the insertion groove,
Wherein the size of the insertion groove is larger than the size of the second magnet. The method of claim 6,
And the second magnet is inserted into the insertion groove when a force is applied between the second coil and the second magnet facing the second coil and a current flows in one direction to the second coil. Camera actuator with focus adjustment and camera shake compensation. The method according to claim 1,
A cover coupled to the base and covering the first carrier and the second carrier;
A spacer mounted on the cover and having a plurality of spaced grooves penetrating upward and downward;
A first circuit board on which the first coil is mounted; And
And a second circuit board mounted between the cover and the spacer,
A pressure pad is disposed between the cover and the second circuit board,
A protrusion protruding from the spacing groove is formed on the second circuit board by the pressing pad,
Characterized in that the elastic member has one end mounted on the second carrier and connected to the first circuit board and the other end mounted on the protrusion through the spacing groove and connected to the second circuit board, Camera actuator with camera shake compensation function. The method of claim 8,
Wherein the elastic member is composed of a plurality of elastic members,
Wherein one end of the elastic member is located below one of the spaced grooves and is connected to the first circuit board by soldering. The method according to claim 1,
Wherein a cross-sectional shape of the elastic member is equal to or longer than a length in a longitudinal direction parallel to the optical axis direction and equal to or greater than a length in a transverse direction direction.

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