KR101035791B1 - Optical image stabilizer for camera lens assembly - Google Patents

Abstract

The present invention provides a camera shake assembly, comprising: a main frame; A drive frame flowing in at least one direction on the main frame; A camera element mounted on the drive frame; A pair of driving permanent magnets installed on one of the main frame and the driving frame, and a pair of coils provided on the other side to face the pair of driving permanent magnets, respectively; And a yoke installed on the other side of the main frame or the driving frame together with the coils, and the driving as the electromagnetic force generated when the current is applied to the coils interacts with the magnetic forces of the driving permanent magnets. The movement of the frame and the movement of the drive frame in the direction in which the subject image is incident on the camera element discloses a camera shake assembly of the camera lens assembly, which is limited by the attraction force between the yoke and the driving permanent magnet.

Camera, camera shake, correction, frame, terminal, ball bearing

Description

Image stabilizer for camera lens assembly {OPTICAL IMAGE STABILIZER FOR CAMERA LENS ASSEMBLY}

1 is an exploded perspective view illustrating an image stabilizer of a camera lens assembly according to a first exemplary embodiment of the present invention;

FIG. 2 is an assembled perspective view illustrating an image stabilizer of the camera lens assembly illustrated in FIG. 1;

3 is a top perspective view illustrating a first frame of the image stabilizer shown in FIG. 1;

4 is a bottom perspective view illustrating a first frame of the image stabilizer illustrated in FIG. 1;

FIG. 5 is a cross-sectional view illustrating an image stabilizer cut along line A-A 'shown in FIG. 2;

FIG. 6 is a cross-sectional view illustrating an image stabilizer cut along the line BB ′ shown in FIG. 2;

7 is an exploded perspective view illustrating an image stabilizer of a camera lens assembly according to a second exemplary embodiment of the present invention.

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a camera lens assembly, and more particularly, to a camera shake correction apparatus for correcting an image disturbed by camera shake while photographing a subject in an optical device mounted on a digital camera or a mobile communication terminal.

Recently, with the development of compact and lightweight digital cameras, camera devices can be mounted in mobile communication terminals, and mobile communication terminals equipped with optical lenses and camera devices are becoming more common.

As the camera lens assembly mounted on the mobile communication terminal further increases its fluidity, image disturbance is increased due to fine vibration or hand shaking generated by the human body. The need to correct this is increasing.

In addition, high-resolution cameras have emerged due to the development of optical technology, but the effect of mounting a high-resolution camera has been halved due to the image disturbance caused by the vibration of vibration.

Currently, there are two techniques for compensating for camera shake. One of the image stabilization techniques is digital image stabilization (DIS) or electronic image stabilization (EIS), which is an electronic image stabilization technique that detects hand shake from the result of captured images and corrects data stored in the camera element or memory. The camera element accepts the image as it is, and adjusts the position and color using an electronic method or a program to produce an image without blurring.

Such electronic image stabilization technology has the advantage that it is easy to adopt due to the low cost and less structural constraints because there is no need for a separate mechanical and physical configuration, but it requires a separate memory or a high performance camera element because it is corrected through software. . In addition, since the time required for correcting the already disturbed image is longer, the shooting speed may be slower, and the correction rate may be lowered because there is a limitation in removing afterimages through software.

Another type of image stabilization technique is optical image stabilization (OIS). The optical image stabilizer is a method of correcting an image of a subject formed on a camera element without shaking by detecting a user's hand shake and changing a position of an optical lens or a camera element.

Such an optical image stabilization device has an additional driving device, which increases manufacturing costs and has difficulty in providing an installation space. However, since an afterimage can be removed by distorting an image without disturbance on a camera element, a correction rate is 90% or more. If the conditions are maintained and use the same performance camera element, there is an advantage that can shoot relatively clear image compared to the device using the electronic image stabilization device. Therefore, the optical image stabilization device is used more than the electronic image stabilization device in the imaging device requiring a high resolution.

On the other hand, a technique for moving and correcting an optical lens may be adopted in a digital camera having a sufficient space to include a driving unit for driving the optical lens, but there are limitations in employing a small digital camera or a mobile communication terminal with a limited space. Therefore, researches on techniques for compensating for hand shake by moving camera elements have been actively conducted.

Japanese Patent Laid-Open No. 10-39350 discloses an optical image stabilizer. The disclosed image stabilization apparatus has a piezoelectric element for the X-axis and a piezoelectric element for the Y-axis disposed on the outer side of the optical lens, and provides a separate support portion for supporting the optical axis. It is configured to move by the distance of. As described above, in order to install a driving device such as a piezoelectric element on the outer side of the optical lens, the outer diameter of the optical lens system is increased, which makes it difficult to mount the mobile communication terminal in which the length and the outer diameter of the camera lens assembly are extremely limited.

In addition, there is a limit to downsizing the driving device because a considerable driving force must be generated in order to drive an optical lens having a certain weight, and since a lot of power consumption is required, there is a limit to mounting in a portable photographing device using a rechargeable battery. .

In addition, the difficulty in designing a small drive device and the increase in manufacturing cost due to the increase in the number of parts are obstacles in securing a price competitiveness of a photographing device having a camera shake correction device.

In addition, in the case of a contact driving device using a friction force with a drive shaft, such as a piezoelectric element, not only there is a difficulty in managing the tolerance of the contact surface, but there is a problem in that malfunction occurs when the contact surface wears, thereby lowering reliability. In addition, a driving circuit for generating and applying a specific voltage waveform is required to drive a driving device such as a piezoelectric element, which increases manufacturing cost and restricts the simplification of the photographing apparatus.

In order to solve the above problems, an object of the present invention can be embedded in a small, light-weight shooting device such as a small digital camera, a mobile communication terminal, it is possible to capture a clear image even in the shaking of the shooting device due to hand shake, etc. The camera lens assembly to provide a camera shake correction device.

Another object of the present invention is to use a coil and a permanent magnet to move the camera element according to the user's hand shake to simplify the structure, easy to control, and to reduce the manufacturing cost of the camera lens assembly image stabilization device To provide.

Still another object of the present invention is to provide a camera shake correction apparatus of a camera lens assembly capable of improving product reliability by adopting a non-contact driving method in driving for camera shake correction.

Still another object of the present invention is to provide a camera shake correction apparatus of a camera lens assembly capable of smoothly flowing a driving body in a hand shake correction operation by inserting a ball bearing between a fixed body and a driving body.

Still another object of the present invention is to provide a camera shake correction apparatus of the camera lens assembly, which can improve the correction rate by allowing the camera to move in at least two directions when the driving body is driven in the camera shake correction operation.

In order to achieve the above objects, the present invention in the camera shake correction apparatus,

Main frame;

A drive frame flowing in at least one direction on the main frame;

A camera element mounted on the drive frame;

A pair of driving permanent magnets installed on one of the main frame and the driving frame, and a pair of coils provided on the other side to face the pair of driving permanent magnets, respectively; And

And a yoke installed on the other side of the main frame or a driving frame together with the coils,

As the electromagnetic force generated by applying current to the coils interacts with the magnetic forces of the driving permanent magnets, the driving frame flows, and the driving frame flows in a direction in which the subject image is incident on the camera element. Disclosed is a camera shake correction apparatus of a camera lens assembly limited by the attractive force of a yoke and the driving permanent magnet.

Hereinafter, preferred embodiments of the present invention will be described in detail with reference to the accompanying drawings. In the following description of the present invention, if it is determined that the detailed description of the related known function or configuration may unnecessarily obscure the subject matter of the present invention, the detailed description thereof will be omitted.

As shown in FIGS. 1, 2, 5, and 6, the image stabilization apparatus 100 of the camera lens assembly according to the first exemplary embodiment of the present invention may include a main frame 101, a drive frame 102, And a coil 143 and a permanent magnet 125a. The drive frame 102 flows on the main frame 101 by the interaction of the coil 143 and the permanent magnet 125a. By changing the position of 103, it is a configuration for correcting the disturbance of the captured image due to the shaking of the user.

The main frame 101 has a shape in which at least a portion of an upper surface of the main frame 101 is opened so that the subject image is incident on the camera element 103, and a lower surface of the main frame 101 opens in a direction Z in which the image of the subject is incident. 111a) is formed. The first sliding groove 111a extends along the first direction X. As shown in FIG. The lower surface of the main frame 101 is closed by the coil unit 104. The coil unit 104 includes a printed circuit board 141 having a connector 149 formed at one end thereof, a pair of coils 143 mounted on the printed circuit board 141, and the driving frame 102. Position detection sensors 145 are mounted to detect whether there is flow and the amount thereof. The coils 143 may generally use a winding coil wound with a winding machine, and may also use a laminated coil manufactured by using a micro electro mechanical systems (MEMS) technique. The yoke 147 is mounted on the lower surface of the printed circuit board 141.

The driving frame 102 is configured such that the first frame 102a and the second frame 102b stacked in the direction in which the subject is incident are surrounded by the main frame 101.

3 and 4, the first frame 102a has a second sliding groove 111b extending along the first direction X on a lower surface thereof, and the second sliding groove 111b. ) Is positioned to face the first sliding groove 111a. A ball 113 is interposed between the main frame 101 and the first frame 102a, and specifically, between the first sliding groove 111a and the second sliding groove 111b. A portion of the ball 113 is accommodated in the first sliding groove 111a and the other portion is accommodated in the second sliding groove 111b, so that between the main frame 101 and the bottom surface of the first frame 102a. Will be spaced apart. Since the first and second sliding grooves 111a and 111b respectively extend along the first direction X, the first frame 102a may be in the first direction without friction with the main frame 101. It can flow smoothly along X).

That is, the first and second sliding grooves 111a and 111b and the ball 113 are combined with each other to serve as a ball bearing to smoothly flow the first frame 102a. In this case, the first and second sliding grooves 111a and 111b may be formed in various groove shapes, but the cross-section is preferably formed in a letter 'V' shape. In addition, in order to prevent wear due to frequent flow, at least the portion in which the ball 113 and the ball 113 directly contact is preferably made of a metallic material.

The second frame 102b is stacked on the upper surface of the first frame 102a to flow in the second direction Y. The second direction Y is set in the vertical direction of the first direction X.

Since the second frame 102b is stacked on the first frame 102a, the second frame 102b may be coupled to the main frame 101 together with the first frame 102a. It is possible to flow in the direction X. In addition, since the second frame 102b is configured to be movable in the second direction Y on the first frame 102a, the second frame 102b is first and second directions X, Y) can be configured to flow.

The second frame 102b includes a pair of driving permanent magnets 125a facing the pair of coils 143, respectively, and a permanent sensor for facing the position detecting sensors 145, respectively. Magnets 127a are installed. In addition, yokes 125b and 127b for forming a magnetic path are attached to the upper surfaces of the driving permanent magnets 125a and the sensor permanent magnets 127a, respectively, so that the magnetic forces of the permanent magnets 125a and 127a may be attached. It is configured to be used effectively.

The magnetic force of the driving permanent magnets 125a may cause the second frame 102b to move in the first and second directions X and Y by interaction with the electromagnetic force generated by the coils 143. Generates a driving force to flow, the position detection sensor 145 detects the position change of the permanent magnets for the sensor (127a), thereby monitoring the position of the flow of the second frame (102b).

At least one extending along the second direction (Y) on the upper surface of the first frame (102a) so that the second frame (102b) can smoothly flow along the second direction (Y) direction A third sliding groove 121a is formed, and a fourth sliding groove (not shown) is formed on a lower surface of the second frame 102b to face the third sliding groove 121a.

A ball 123 is interposed between the first frame 102a and the second frame 102b, specifically, between the third and fourth sliding grooves 121a and 121b, so that the second frame 102b of the second frame 102b is interposed therebetween. Smooth the flow along direction (Y). The ball bearing shape is formed by the combination of the third and fourth sliding grooves 121a and 121b and the ball 123. The ball bearing combination between the first and second frames 102a and 102b may be easily understood through the ball bearing combination between the main frame 101 and the first frame 102a.

In this case, at least three first, second, third, and fourth sliding grooves 111a, 111b, 121a, and 121b may be formed. This is to maintain the flow of the first and second frame (102a, 102b) frame on one plane.

The camera element 103 is mounted on the second frame 102b. The camera element 103 includes an image sensor 131 that receives an image of a subject and a flexible printed circuit 133 that transmits an image signal input from the image sensor 131, and a predetermined substrate 135. It is supported by and mounted on the second frame 102b. Therefore, the camera element 103 is configured to flow in the first and second directions X and Y with respect to the main frame 101 together with the second frame 102b.

The main frame 101 is mounted and fixed to a photographing device such as a digital camera or a mobile communication terminal, and the electromagnetic force generated by applying electric current to the coils 143 according to the degree of shaking of the user during shooting and the driving permanentity. The interaction of the magnetic force formed by the magnets 125a changes the position of the second frame 102b, specifically, the camera element 103.

At this time, any one of the coils 143 is installed in the first direction X with the driving permanent magnet 125a facing it, and the other with the driving permanent magnet 125a facing it. It is installed in the second direction Y. The electromagnetic force generated according to the current applied to the coils 143 interacts with the magnetic force of the driving permanent magnets 125a to move the second frame 102b in a first or second direction (X, Y). ).

In a state in which no current is applied to the coils 143, the driving permanent magnets 125a are attracted to the yoke 147 of the coil part 104, so that the second frame 102b operates. Will return to the initial position set during initial assembly.

In addition, the driving permanent magnets 125a and the yoke 147 of the coil part 104 may have a third direction in which the second frame 102b enters a third direction, that is, the direction Z of the subject image due to the attraction force between each other. Restrict flow to Accordingly, the camera element 103 is restricted from being moved away from the focal length of the lens system (not shown) which flows in the direction Z in which the subject image is incident and mounted in front of the camera element 103.

When the magnetic force of the driving permanent magnets 125a is weak and the attraction force generated between the yokes 147 of the coil unit 104 is weak, and thus it is difficult to prevent the flow in the third direction Z, a separate spring such as a spring An elastic member (not shown) may be installed to compensate for this. The elastic member may be installed between the main frame 101 and the driving frame 102 to limit the flow along the third direction Z of the second frame 102b.

On the other hand, the yoke 125b attached to the upper surfaces of the driving permanent magnets 125a and the yoke 147 of the coil part 104 generate a magnetic field so that the magnetic force of the driving permanent magnet 125a can be effectively applied. By inducing, by forming a magnetic shield structure that restricts the outflow to the outside, the magnetic force of the driving permanent magnet 125a is limited to affect the surrounding circuit devices and the like.

The position detecting sensor 145 is for tracking the moving position of the second frame 102b and is fixed by a predetermined distance from the coils 143 so as not to be affected by the electromagnetic force generated in the coils 143. It is desirable to space them apart. An optical sensor, a hall sensor, or the like may be used as the position detection sensor 145 as described above. Optical sensors have the advantage of being able to detect with high accuracy, but because they are expensive, they can cause an increase in manufacturing cost. The Hall sensor has a lower detection sensitivity than an optical sensor, but it is inexpensive and has an advantage of having an appropriate sensitivity for image stabilization. In the present exemplary embodiment, the position detecting sensor 145 is configured using a pair of Hall sensors, and the permanent magnets 127a for the sensors are mounted on the second frame 102b so that the second frame 102b is mounted. It is configured to detect the change in position of.

On the other hand, since the photographing device having the image stabilization device 100 as described above mostly uses a rechargeable battery, the strength of the driving permanent magnet 143 is increased to reduce power consumed by the image stabilization device 100. Large permanent magnets of ND series are used. At this time, when using a permanent magnet having a large strength of magnetic force, the drive frame 102 due to excessive attraction between the yoke 147 of the coil part 104 and the permanent magnets 125a on the second frame 102b. Since the reaction speed or the correction speed may decrease, it is preferable to set the strength of the permanent magnet in consideration of the attraction force due to the magnetic force, the weight of the driving frame, the friction force during the flow for image stabilization, and the like.

In addition, by placing a yoke or a separate permanent magnet having a permeability on one side of the main frame 101 by using the attraction force or reaction force with the permanent magnets 125a of the second frame 102b, the camera element 103 It is possible to maintain the initial stop position of) more precisely. Therefore, the position control algorithm of the second frame 102b can be easily implemented and the correction speed can be improved.

The yokes 125b and 127b attached to the upper surfaces of the permanent magnets 125a and 127a to form magnetic poles of the magnetic poles may reduce the magnetic resistance of the magnetic fluxes generated by the permanent magnets 125a and 127a while reducing the magnets. 143) is used to increase the strength of the magnetic force to be supplied, it is preferable to use a high permeability metal material, it is also possible to separate and laminated according to the position of the permanent magnets (125a, 127a) and integrally It is also possible to produce.

The image sensor 131 may use a CCD sensor, a CMOS sensor, or the like as a photoelectric conversion element capable of digitally processing image information such as color and brightness of a subject by receiving an image of a subject to be photographed. The image sensor 131 is mounted on the upper end of the second frame 102b so that the disturbance in the second direction Y is corrected by the flow of the second frame 102b and the first direction X The disturbance may be corrected by the flow of the first frame 102a to capture a clear image.

FIG. 7 illustrates an image stabilizer 200 of a camera lens assembly according to a second exemplary embodiment of the present invention. The camera shake assembly apparatus 200 of the camera lens assembly according to the second exemplary embodiment of the present invention is slightly different from the previous embodiment in the configuration of the driving frame 202, specifically, the first and second frames 202a and 202b. . Therefore, the same reference numerals as those of the previous embodiment are omitted or omitted for the components that can be easily understood through the preceding embodiments, and the detailed description thereof may be omitted.

The image stabilization apparatus 200 according to the second preferred embodiment of the present invention shows the largest difference in that the thickness is reduced in comparison with the previous embodiment. In addition, in forming the sliding grooves (111a, 121a, 221, 223), the portion (221, 223) is formed in a planar advantage that the flow of the first and second frames (202a, 202b) can be more smoothly Have

In the preceding embodiment, in forming the first, second, third, and fourth sliding grooves 111a, 111b, and 121a, the second and third sliding grooves 111b and 121a are formed at similar heights. It can be seen. That is, in view of the configuration of the positional relationship between the sliding grooves, the three layers are configured in a stacked form.

In the camera shake correction apparatus 200 according to the second exemplary embodiment of the present invention, the shape of the first frame 202b is changed so that the third sliding groove 121a is formed at the same height as the first sliding groove 111a. The fourth sliding groove 223 is formed at the same height as the second sliding groove 221. The image stabilization apparatus 200 according to the present exemplary embodiment is configured in a form in which two layers are stacked in view of the configuration of the positional relationship between the sliding grooves.

In detail, support ribs 221 are formed on inner surfaces of the main frame 201 along the first direction X, respectively. The support ribs 211 extend in the first direction X, and both ends thereof are spaced apart from the inner wall along the second direction Y, respectively.

As long as the first frame 202a extends in parallel with each other along the pair of first support members 227 extending in parallel with each other along the first direction X, the first frame 202a extends in parallel with each other along the second direction Y. It consists of a pair of second support members 229. Both ends of the second support members 299 are respectively coupled to both ends of the first support members 227. When the first frame 202a is positioned on the main frame 201, lower surfaces of the first support members 227 are stacked on the support ribs 211 of the main frame, respectively. In this case, both ends of the second support members 229 are respectively located in the space between the ends of the support ribs 211 and the inner wall of the main frame 201 along the second direction (Y). Thus, the second support members 229 are positioned on the same plane as the support ribs 211.

Meanwhile, the first sliding grooves 111a are formed on the support ribs 211, and the third sliding grooves 121a are formed on the second support members 229, respectively. The first and third sliding grooves 111a and 121a are located on the same plane.

When the second frame 202b is positioned on the first frame 202a, both sides of the second frame 202b may be surrounded by the first support members 227. As a result, the thickness of the image stabilizer 200 is determined by the thicknesses of the support ribs 211 and the second frame 202b of the main frame 201 as compared with the previous embodiment.

In addition, in the image stabilization apparatus 200 according to the present embodiment, the first, second, third, and fourth sliding grooves 111a, 221, 121a, and 223 are each composed of three grooves. Some of the three grooves constituting the fourth sliding grooves 221 and 223 are configured in a planar shape.

Looking at the configuration of the first sliding groove 111a and the second sliding groove 221 as an example, the first sliding groove (111a) is configured on the main frame 101, one pair on one side, one on the other side. In this case, the pair of grooves formed on one side are positioned on a straight line, and the other side groove is formed in parallel thereto. Since the second sliding groove 221 is formed corresponding to the configuration of the first sliding groove 111a, a detailed description thereof will be omitted.

At this time, when the parallelism between the grooves formed on one side and the grooves on the other side of the main frame 101 is not ideal, the second sliding groove 221 does not suit the first sliding groove 111a properly. If not, the flow of the first frame 202a is not smooth. Furthermore, when the first and second sliding grooves 111a and 221 are formed only in a V shape, the smoothness of the flow of the first frame 202a is further lowered.

Therefore, one of the grooves constituting the second sliding groove 221 is formed in a planar shape so that parallelism between the sliding grooves is not ideal, or sliding formed in each of the main frame 101 and the first frame 202a. Even if the grooves do not coincide with each other, the flow of the first frame 202a is smooth.

The image stabilization apparatuses 100 and 200 according to an exemplary embodiment of the present invention are configured to change the position of the camera element in two directions (X, Y) that are perpendicular to each other in common. The driving force for changing the position of the camera element is formed as the magnetic force of the permanent magnet and the coil which generates the electromagnetic force as the current is applied. At this time, the flow range of the camera element on the image stabilizer (100, 200) is limited to a range of tens to hundreds of micrometers. It is obvious that the larger the flow range of the camera element is, the more advantageous it is to correct the disturbance of the captured image due to the greater hand shake. However, in general, it is possible to correct the disturbance of the captured image due to hand shake during the shooting by flowing the camera element in the range of several tens to several hundred μm. In addition, considering that the camera element is moved to correct the disturbance of the photographed image, the camera lens assembly is intended to be mounted on a compact digital camera or a mobile communication terminal. Therefore, it is not preferable to extend the flow range of the camera element.

The flow range of the camera element for correcting the disturbance of the photographed image due to the shaking and the like may be appropriately set by those skilled in the art according to the product and the use of the product.

In the foregoing detailed description of the present invention, specific embodiments have been described. However, it will be apparent to those skilled in the art that various modifications can be made without departing from the scope of the present invention.

For example, the number of ball bearing combinations can be varied if the flow and level of the second frame can be maintained smoothly.

As described above, since the camera shake correction apparatus according to the preferred embodiment of the present invention is configured to change the position of the camera element by using a pair of coils and a permanent magnet, the camera system is moved to compensate for the camera shake correction. It is advantageous in miniaturization than the conventional technique to be carried out. Accordingly, there is an advantage in that it is easy to capture a clear image by attaching to a miniaturized photographing device such as a small digital camera and a mobile communication terminal. In addition, by using a coil and a permanent magnet to drive the camera element according to the user's hand shake, the structure is simplified, easy to control, and manufacturing costs can be reduced, and a non-contact type using a coil and a permanent magnet rather than a piezoelectric element By adopting the driving method, the reliability of the product can be improved. Moreover, the ball bearing is inserted between the main frame and the drive frame driving body to smooth the flow of the driving body in the image stabilization operation, and to move in at least two directions when driving the driving body in the image stabilization operation. It is easy to compose and improves the correction rate.

Claims (5)

In the camera shake correction device of the camera lens assembly, Main frame; A drive frame flowing in at least one direction on the main frame; A camera element mounted on the drive frame; A pair of driving permanent magnets installed on one of the main frame and the driving frame, and a pair of coils provided on the other side to face the pair of driving permanent magnets, respectively; And And a yoke installed on the other side of the main frame or a driving frame together with the coils, As the electromagnetic force generated by applying current to the coils interacts with the magnetic forces of the driving permanent magnets, the driving frame flows, and the driving frame flows in a direction in which the subject image is incident on the camera element. Image stabilization device of the camera lens assembly, characterized in that limited by the attraction of the yoke and the drive permanent magnet. According to claim 1, further comprising a further yoke for each of the driving permanent magnets, each of the yoke surrounding the driving permanent magnets, and the coil and the other side of the main frame or the drive frame is installed with the coil The image stabilizer of the camera lens assembly of the yoke prevents interference and propagation interference caused by an external magnetic field by forming a magnetic shield structure. The camera shake assembly of claim 1, further comprising at least one ball bearing interposed between the main frame and the drive frame. According to claim 1, At least one permanent magnet for at least one sensor installed on either the main frame or the drive frame; And It is further provided with at least one position detecting sensor installed on either of the main frame or the drive frame facing the sensor permanent magnet, And the position detecting sensor detects a flow of the driving frame according to a change in a magnetic force line generated from the sensor permanent magnet. 2. The coil of claim 1, wherein one of the coils is installed along a first direction with a drive permanent magnet facing it, and the other is perpendicular to the first direction with a drive permanent magnet facing it. The camera element is moved in the first direction or the second direction with respect to the main frame together with the drive frame according to a coil to which a current is applied to the camera lens assembly. Device.

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