KR100703513B1 - Optical image stabilizer for camera lens assembly - Google Patents

Abstract

The present invention provides a camera shake assembly, comprising: a main frame including a main circuit board; A drive frame installed to be movable in at least one direction on the main frame; A camera element including a sub circuit board and mounted on the driving frame; And a circuit connection electrically connecting the main circuit board and the sub circuit board, wherein the circuit connection is connected at both ends to the main circuit board and the sub circuit board, respectively, and is independent of the main circuit board and the sub circuit board. An apparatus for compensating for a camera lens assembly including a plurality of conducting wires that are fluidly wired to the camera is disclosed.

Camera, Image Stabilization, Correction, Frame, Circuit Connection

Description

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

1 is a perspective view showing a camera device of the camera lens assembly according to an embodiment of the prior art.

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

3 is an assembled perspective view of the image stabilizer shown in FIG. 2;

4 is a perspective view illustrating a main frame of the image stabilizer shown in FIG. 2;

5 is a perspective view illustrating each of the first frames of the image stabilizer shown in FIG. 2;

6 is a perspective view illustrating each of the second frames of the image stabilizer shown in FIG. 2;

7 to 10 are views sequentially illustrating a process of configuring circuit connections between a main circuit board and a sub circuit board of the camera lens assembly shown in FIG. 2;

FIG. 11 is a side view illustrating a circuit connection between a main circuit board and a sub circuit board of the camera lens assembly shown in FIG. 2;

12 is a perspective view illustrating a circuit connection between a main circuit board and a sub circuit board of the camera lens assembly shown in FIG. 2.

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 shooting a subject.

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 device accepts the image as it is, and adjusts the position and color using an electronic method or a program to produce an image free of distortion.

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.

Meanwhile, as shown in FIG. 1, in the conventional camera device 10, an image sensor 21 mounted in a predetermined frame 11 communicates with a main circuit board (not shown) through a flexible printed circuit 41. It is a configuration for transmitting the captured image information while performing the operation. In the configuration of the flexible printed circuit 41, a copper plating line 44 pattern is formed on a flexible base 43 for maintaining a substrate shape, and a cover layer 45 is formed. The disconnection of the copper plating wire 44 is prevented and insulation is performed.

However, in constructing the camera shake correction apparatus of the camera lens assembly, the flexible printed circuit connected to the camera element is a factor to reduce the camera shake correction rate. That is, the camera element by the image stabilization device moves at a frequency of several tens of Hz and a minute amplitude. More driving force is required due to the load by the flexible printed circuit, and the load by the flexible printed circuit is always constant. It does not mean that the correction rate is lowered. This decrease in the correction rate is more serious when the flow of the camera element proceeds in a direction perpendicular to the longitudinal direction of the flexible printed circuit to perform image correction. In addition, an increase in driving force required for correction of camera shake or the like increases power consumption, which causes a reduction in the use time of a storage battery of an imaging device such as a digital camera or a portable terminal equipped with a camera lens assembly. In addition, when using a high-performance camera device having a high pixel count, a larger number of plating lines are required and the width of the flexible printed circuit increases, which causes a problem in that the correction rate decreases more seriously due to the load of the flexible printed circuit. .

In order to solve the above problems, it is an object of the present invention to provide an image stabilization device of a camera lens assembly that can improve the correction rate by reducing the load of the circuit connection for communication between the camera element and the main circuit board.

Another object of the present invention is to provide a camera shake correction apparatus of a camera lens assembly which can reduce power consumption by reducing a load of a circuit connection for communication between a camera element and a main circuit board, thereby reducing driving force required for image correction.

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

A main frame including a main circuit board;

A drive frame installed to be movable in at least one direction on the main frame;

A camera element including a sub circuit board and mounted on the driving frame; And

A circuit connection electrically connecting the main circuit board and the sub circuit board,

The circuit connection is a camera shake assembly of the camera lens assembly is composed of a plurality of conductors each of which is connected to the main circuit board and the sub-circuit board, each of which is connected to the main circuit board and the sub-circuit board separately. It starts.

Hereinafter, exemplary 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. 2 to 6, the image stabilization apparatus 100 of the camera lens assembly according to an exemplary embodiment of the present invention may include a main frame 101, a drive frame 102, a coil 143, and a permanent magnet ( 125, and the drive frame 102 flows on the main frame 101 by changing the position of the camera element 103 by the interaction of the coil 143 and the permanent magnet 125 It is a component that corrects the disturbance of the captured image due to the shaking of the user.

2 and 4, the main frame 101 has a shape in which at least a portion of the upper surface is opened so that the subject image is incident on the camera element 103, and a direction in which the image of the subject is incident on the lower surface (Z). The first sliding groove 111a which is open toward () is formed. The first sliding groove 111a extends along the first direction X. As shown in FIG. In order to form the sliding groove 111a, ribs may be formed on an inner bottom surface of the main frame 101.

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.

2 and 5, 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 as to be disposed between the main frame 101 and the first frame 102a. 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.

At least both sides of the second frame 102b are surrounded by the first frame 102a, and the second frame 102b flows in the second direction Y on the first frame 102a. The second direction Y is set in the vertical direction of the first direction X. Since the second frame 102b is installed on the first frame 102a, the second frame 102b is together with the first frame 102a in the first direction with respect to the main frame 101. It is possible to flow in 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.

2 and 6, the second frame 102b includes a pair of driving permanent magnets 125 facing the pair of coils 143, respectively, and the position detecting sensors ( Permanent magnets 127 for the sensors respectively facing 145 are provided. In addition, a yoke 126 for forming a magnetic path is attached to the upper surfaces of the driving permanent magnets 125 and the sensor permanent magnets 127, respectively, to effectively utilize the magnetic forces of the permanent magnets 125 and 127. It is configured to be.

The magnetic force of the driving permanent magnets 125 may move the second frame 102b 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, and the position detecting sensor 145 detects the position change of the permanent magnets 127 for the sensor, 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 121b is formed on the 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 frames 102a and 102b 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 sub circuit board 135 for mounting and electrically connecting the image sensor 131. In addition, a main circuit board 133c is mounted on the main frame 101, and the sub circuit board 135 is connected to the main circuit board 133c through a predetermined circuit connection 133.

As mounted on the second frame 102b, the camera element 103 may flow along the second frame 102b in the first and second directions X and Y with respect to the main frame 101. It is configured to be.

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 125 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 together with the driving permanent magnet 125 facing it, and the other with the driving permanent magnet 125 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 125 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 125 have an attraction force between the yoke 147 of the coil part 104 and the second frame 102b. Will return to the initial position set during initial assembly.

In addition, the driving permanent magnets 125 and the yoke 147 of the coil unit 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 attraction between each other. Restrict flow to Therefore, the camera element 103 is restricted from moving 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 attraction force generated between the driving permanent magnets 125 and the yoke 147 of the coil part 104 is weak and difficult to prevent the flow in the third direction Z, a separate elastic member such as a spring ( It can be supplemented by installing (not shown). 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.

Meanwhile, the yoke 126 attached to the upper surfaces of the driving permanent magnets 125 and the yoke 147 of the coil unit 104 may generate a magnetic field so that the magnetic force of the driving permanent magnet 125 may be effectively applied. By inducing, by forming a magnetic shielding structure that restricts the outflow to the outside, the magnetic force of the driving permanent magnet 125 is limited to affect the surrounding circuit devices and the like.

The position detection sensor 145 is for tracking the movement position of the second frame 102b and is a predetermined distance from the coils 143 so as not to be affected by the electromagnetic force generated in the coils 143. It is preferable to space apart. An optical sensor, a hall sensor, or the like may be used as the position detection sensor 145 as described above. The optical sensor has an advantage that high-precision position detection is possible, but because it is expensive, it may cause an increase in manufacturing cost. The Hall sensor has a lower detection sensitivity than an optical sensor, but it is inexpensive and has the advantage of having a sensitivity required to compensate for camera shake. In the present exemplary embodiment, the position detection sensor 145 is configured using a pair of hall sensors, and the permanent magnets 127 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 imaging device having the image stabilization device 100 as described above mostly uses a rechargeable battery, the strength of the driving permanent magnet 143 to reduce the power consumed by the image stabilization device 100 ND series permanent magnets are used. In this case, when using a permanent magnet having a high magnetic force, the driving frame 102 may be caused by excessive attraction between the yoke 147 of the coil part 104 and the permanent magnets 125 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 125 of the second frame (102b) 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 yoke 126 attached to the upper surfaces of the permanent magnets 125 and 127 to form a magnetic path of the magnetic poles reduces the magnetoresistance of the magnetic flux generated in the permanent magnets 125 and 127 while reducing the coils 143. It is preferable to use a metal material having a high permeability to increase the strength of the magnetic force supplied to it. It is also possible to separate and laminate the magnets according to the positions of the permanent magnets 125 and 127 and to manufacture them integrally. It is also possible.

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.

Hereinafter, a process of fabricating the circuit connection 133 and its configuration will be described with reference to FIGS. 7 to 12. As described above, the circuit connection 133 electrically connects the sub circuit board 135 to the main circuit board 133c to establish a communication path between the image sensor 131 and the main circuit board 133c. Will be provided.

At one edge of the main circuit board 133c and the sub-circuit board 135, a connection portion 161 formed of an array of a plurality of soldering bases 165 (shown in FIG. 8) is formed. In addition, another soldering base 163 is mounted on the sub circuit board 135 to mount the image sensor 131.

The main circuit board 133c and the sub circuit board 135 are aligned so that the soldering bases 165 respectively formed at the connection parts 161 are positioned in a straight line, and the plurality of conductors 133a are arranged to solder each of the soldering bases 165. Soldering 167 is performed after connecting the base 165 in a 1: 1 ratio. The method of bonding the conductive wires 133a and the soldering base 165 to each other may be performed by using an ultrasonic bonding method in addition to soldering. Ultrasonic bonding is a method of bonding the conductive wires 133a on the soldering base 165. After arranging the end portion, ultrasonic wave is applied and fused.

After the soldering 167 is performed, unnecessary conductors are removed and a reinforcing member 133b (shown in FIG. 10) is applied to each connection portion 161. The reinforcing member 133b is to prevent the soldering portions of the conductive wires 133a from being disconnected or damaged even when the sub circuit board 135 flows with respect to the main circuit board 133c. In this case, the reinforcing member 133b may utilize a curing epoxy and a flexible epoxy together. That is, after applying a high hardness cured epoxy to the connection portion 161 of the conductive wires 133a, and when the applied epoxy is completely cured, a soft epoxy having a low hardness on the surface where the conductive epoxy 133a is in contact with the surface of the cured epoxy Can be applied once more. As a result, even when the second frame 102b flows, stress is prevented from being concentrated on a portion where the surface of the curing epoxy and the conductive lines 133a are in contact with each other. This completes the circuit connection 133. Each of the conductive lines 133a is coated with insulation and is configured to be individually flowable.

Meanwhile, the main circuit board 133c is mounted on the main frame 101, and the sub circuit board 135 is mounted on the second frame 102b to flow with respect to the main frame 101. do. In this case, even when the sub circuit board 135 flows, at least a portion of the conductive lines 133a may have a curved curved portion so that external force such as a tensile force is not applied to the circuit connection 133, specifically, the conductive lines 133a. It is preferable to construct. Since the conductive lines 133a are individually movable and have at least a portion of the conductive parts, the load by the circuit connection 133 is increased even when the sub circuit board 135 flows with respect to the main circuit board 133c. It can be prevented from being applied to the sub circuit board 135. By preventing a load from being applied to the sub circuit board 135, it is easy to control the flow of the second frame 102b, thereby reducing power consumption.

In addition, the load caused by the flexible printed circuit in the image stabilization operation flowing in the vertical direction of the conventional flexible printed circuit was more severe, but the conductors 133a of the circuit connection 133 are each individually movable configuration so that the camera A good correction rate can be ensured regardless of the flow direction of the element 103.

In configuring the circuit connection 133 as described above, when the conductive wires 133a having a diameter of 0.005 mm or more and 0.08 mm or less are used, a signal is stably transmitted between the main circuit board 133c and the image sensor 131. As it was transmitted, no load was applied to the flow of the sub-circuit board 135. When the conductors having a diameter of less than 0.005 mm are used, the load on the subcircuit board 135 is reduced, but the stability of signal transmission or the efficiency of the arrangement and the soldering process of the conductors is reduced. On the other hand, when the wire having a diameter exceeding 0.08 mm is used, the stability of signal transmission and the efficiency of the process of configuring the circuit connection are improved, but the correction rate is lowered due to the load applied to the sub circuit board 135. . While using the conductive wires 133a having a diameter of 0.005 mm or more and 0.08 mm or less, by appropriately selecting the material, it is possible to further improve the stability of signal transmission. For example, when the fine wires of the aforementioned diameter range were manufactured of gold, sufficient stability was secured between the main circuit board 133c and the image sensor 131. In addition to gold, copper and silver may be used as the material of the conductive wire, and when silver is used, gold may be coated on the outer circumferential surface thereof.

The image stabilization apparatus 100 according to the preferred embodiment of the present invention is configured to change the position of the camera element in two directions (X, Y) perpendicular to each other. The driving force for changing the position of the camera element 103 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 is limited to the range of several tens to several hundred μm. 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, it is not preferable to extend the flow range of the camera element in consideration of the fact that the movement of the camera element to correct the disturbance of the photographed image is for mounting the camera lens assembly to a micro digital camera or a mobile communication terminal. The flow range of the camera element 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, the image stabilization apparatus according to the present invention is a configuration for compensating for a disturbance of a captured image caused by a user's hand shake by moving a camera element, and a circuit connection for connecting an image sensor flowing on the camera lens assembly with a main circuit board. By using a plurality of individually movable conductors in the configuration, the load on the circuit board to which the image sensor is attached is prevented. As a result, since the driving force required for the flow of the camera element for camera shake correction can be reduced, power consumption can be reduced. In addition, since the load due to the configuration of the circuit connection is prevented, it is easy to correct the disturbance of the photographed image due to factors such as camera shake by controlling the position of the camera element, thereby improving the correction rate.

Claims (20)

In the camera shake correction device of the camera lens assembly, A main frame including a main circuit board; A drive frame installed to be movable in at least one direction on the main frame; A camera element including a sub circuit board and mounted on the driving frame; And A circuit connection electrically connecting the main circuit board and the sub circuit board, The circuit connection may include a plurality of conductors each of which is connected to the main circuit board and the sub circuit board at both ends thereof and individually connected to the main circuit board and the sub circuit board. Image stabilization device. According to claim 1, Each of the conductors has a diameter of 0.005 mm or more and 0.08 mm or less. According to claim 1, An end of the conductors is connected to the main circuit board and the sub circuit board, respectively, and then a reinforcing member is applied to the connection portion to prevent disconnection of the conductors at the connection portion. . The method of claim 3, wherein the reinforcing member, A cured epoxy applied to an end portion of the conductive lines and a connection portion of the main circuit board and the sub circuit board; And Image stabilization device of the camera lens assembly, characterized in that it comprises a flexible epoxy applied to the surface in contact with the surface of the cured epoxy. According to claim 1, And wherein the circuit connection between the main circuit board and the sub circuit board includes at least a portion of the curved portion having a curved shape. According to claim 1, The camera shake assembly of the camera lens assembly, characterized in that the conductive wires are insulated. According to claim 1, The conductors of the camera lens assembly of claim 1, wherein the conductors are made of any one material of gold, copper, and silver. According to claim 1, And the conductors are made of silver and the outer circumferential surface thereof is coated with gold. According to claim 1, And an end portion of the wires is connected to the main circuit board and the sub circuit board by soldering or ultrasonic bonding, respectively. According to claim 1, A pair of driving permanent magnets installed on either of the main frame or the driving frame, and a pair of coils installed on the other side of the driving permanent magnets to face the pair of driving permanent magnets, The camera frame assembly of the camera lens assembly, characterized in that the drive frame flows as the electromagnetic force generated when the current is applied to the coils interact with the magnetic force of the driving permanent magnets. The method of claim 10, And a yoke installed on the other side of the main frame or the drive frame together with the coils, wherein the drive frame is provided in a direction in which a subject image is incident on the camera element by an attractive force between the yoke and the drive permanent magnet. Image stabilization device of the camera lens assembly, characterized in that the flow is limited. The method of claim 10, And a yoke surrounding the coils and the driving permanent magnets, wherein the yoke forms a magnetic shielding structure to prevent interference and radio wave interference caused by an external magnetic field. According to claim 1, At least one ball bearing interposed between the main frame and the drive frame further comprises a camera shake assembly. 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 the other side of the main frame or 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. The method of claim 1, wherein the drive frame, A first frame installed on the main frame to be movable in a first direction with respect to the main frame; And And a second frame installed on the first frame and flowing in the first direction together with the first frame, the second frame being installed to be movable in the second direction with respect to the main frame. Image stabilization device. The method of claim 15, At least one first sliding groove formed on the main frame along one of the first and second directions to face the first frame; A second sliding groove formed on the first frame to face the first sliding groove along one of the first and second directions; And And a ball spaced apart from the main frame and the first frame while a part is accommodated in the first sliding groove and the other part is accommodated in the second sliding groove. The first frame is shake compensation device of the camera lens assembly, characterized in that the first and second sliding grooves flow in the extending direction on the main frame. The method of claim 15, And at least one ball bearing interposed between the first frame and the second frame. The method of claim 17, wherein the ball bearing, At least one third sliding groove formed on the first frame along one of the first and second directions to face the second frame; A fourth sliding groove formed on the second frame to face the third sliding groove along the other of the first and second directions; And And a ball spaced apart from the first frame and the second frame while a part is received in the third sliding groove and the other part is received in the fourth sliding groove. And the second frame flows along the direction in which the third and fourth sliding grooves extend on the first frame. The method of claim 15, At least one permanent magnet for at least one sensor installed on either the main frame or the second frame; And It is further provided with at least one position detecting sensor installed on either of the main frame or the second frame facing the sensor permanent magnet, And the position detecting sensor detects a flow of the second frame according to a change in a magnetic force line generated from the sensor permanent magnet. The method of claim 15, And a pair of driving permanent magnets installed on either one of the main frame or the second frame of the driving frame, and a pair of coils installed on the other side facing the driving permanent magnets. Image stabilization device of the camera lens assembly.

Images