CN111142310B

CN111142310B - SMA wire optical anti-shake lens driving device, camera device and electronic equipment

Info

Publication number: CN111142310B
Application number: CN202010084737.1A
Authority: CN
Inventors: 余林涛; 曹宏
Original assignee: Ruien Photoelectric Co ltd
Current assignee: Ruien Photoelectric Co ltd
Priority date: 2020-02-10
Filing date: 2020-02-10
Publication date: 2024-05-21
Anticipated expiration: 2040-02-10
Also published as: CN111142310A

Abstract

The present disclosure provides an SMA wire optical anti-shake lens driving apparatus, comprising: the automatic focusing module comprises a lens supporting part and a focusing module base, wherein the hollow part of the lens supporting part is used for accommodating at least one camera lens, the focusing module base provides a space for accommodating the lens supporting part, and the lens supporting part is controlled to move relative to the focusing module base to focus; a first frame located outside the auto-focusing module and providing a space for accommodating the auto-focusing module; a second frame body positioned outside the first frame body and providing a space for accommodating the first frame body; the first group of SMA wires realize the movement of the lens supporting part in the first direction when the first group of SMA wires are electrified; and a second set of SMA wires that effect movement of the lens support in a second direction when the second set of SMA wires is energized. The disclosure also provides a camera device and an electronic device.

Description

SMA wire optical anti-shake lens driving device, camera device and electronic equipment

Technical Field

The present disclosure relates to an SMA wire optical anti-shake lens driving apparatus, a camera apparatus, and an electronic apparatus.

Background

In general, as the sharpness and magnification of an image photographed by a device having a photographing function such as a camera or a cellular phone are improved, OIS (Optical image stabilization, optical anti-shake) function for correcting camera shake and vibration at the time of telephoto by the device having a photographing function such as a camera or a cellular phone requires more complicated camera shake and vibration tracking capability.

In the optical anti-shake control, the control in the X-direction and the Y-direction may interfere, and thus the optical anti-shake correction is affected, and in the driving device combining the optical anti-shake with the auto focus, the size thereof is large, and the present trend of miniaturization is not suitable.

Disclosure of Invention

In order to solve at least one of the above technical problems, the present disclosure provides an SMA wire optical anti-shake lens driving apparatus, a camera apparatus, and an electronic device. According to the SMA wire optical anti-shake lens driving device, the camera device and the electronic equipment, movement in the X direction and the Y direction can be independently controlled, interference between control in the two directions is avoided, and the thickness of the lens driving device is not increased.

According to one aspect of the present disclosure, an SMA wire optical anti-shake lens driving apparatus includes:

An auto-focus module including a lens support portion having a hollow portion accommodating at least one lens for image pickup, and a focus module base providing a space accommodating the lens support portion, the lens support portion being controlled to move relative to the focus module base for focusing;

A first frame located outside the auto-focus module and providing a space accommodating the auto-focus module;

A second frame located outside the first frame and providing a space accommodating the first frame;

The first group of SMA wires are arranged on one side of the lens driving device, and two ends of the first group of SMA wires are fixedly connected to the focusing module base and the first frame body respectively so as to realize movement of the lens supporting part in a first direction when the first group of SMA wires are electrified; and

A second group of SMA wires, the second group of SMA wires are arranged on the other side adjacent to one side of the lens driving device, and two ends of the second group of SMA wires are respectively and fixedly connected to the first frame body and the second frame body so as to realize the movement of the lens supporting part in a second direction when the second group of SMA wires are electrified,

Wherein the first direction and the second direction are located in a plane direction perpendicular to an optical axis direction of the lens, and the first direction is perpendicular to the second direction.

In accordance with at least one embodiment of the present disclosure, the first set of SMA wires includes a first SMA wire and a second SMA wire,

A first end of the first SMA wire is fixed to the focus module base, and a second end of the first SMA wire is fixed to the first frame so as to control the lens support to move in a positive direction of the first direction when the first SMA wire is energized; and

A first end of the second SMA wire is fixed to the first frame and a second end of the second SMA wire is fixed to the focus module base so as to control movement of the lens support in a direction opposite to the first direction when the second SMA wire is energized.

In accordance with at least one embodiment of the present disclosure, the second set of SMA wires includes a third SMA wire and a fourth SMA wire,

A first end of the third SMA wire is fixed to the first frame and a second end of the third SMA wire is fixed to the second frame so as to control movement of the lens support in a positive direction of the second direction when the third SMA wire is energized; and

A first end of the fourth SMA wire is fixed to the second frame and a second end of the fourth SMA wire is fixed to the first frame so as to control movement of the lens support in a direction opposite to the second direction when the fourth SMA wire is energized.

In accordance with at least one embodiment of the present disclosure, there is further provided first and second balls for guiding movement in the first direction,

The first ball is arranged on the one side of the lens driving device and is positioned between the focusing module base and the first frame body; and

The second ball is disposed on an opposite side of the lens driving device to the one side, and is located between the focus module base and the first frame.

According to at least one embodiment of the present disclosure, a V-shaped groove is provided on an outer side surface of the focus module base, and a V-shaped groove is provided on an inner side surface of the first frame, and the first ball and the second ball are located between the V-shaped groove of the focus module base and the V-shaped groove of the first frame.

According to at least one embodiment of the present disclosure, the number of the second balls is two, and the two second balls are arranged between the focus module base and the first frame in the first direction.

In accordance with at least one embodiment of the present disclosure, there is further included third and fourth balls for guiding movement in the second direction,

The third ball is arranged on the other side of the lens driving device and is positioned between the first frame body and the second frame body; and

The fourth ball is disposed on an opposite side of the other side of the lens driving device and between the first frame and the second frame.

According to at least one embodiment of the present disclosure, a V-shaped groove is provided on an outer side surface of the first frame body, and a V-shaped groove is provided on an inner side surface of the second frame body, and the third ball and the fourth ball are located between the V-shaped groove of the first frame body and the V-shaped groove of the second frame body.

According to at least one embodiment of the present disclosure, the number of the fourth balls is two, and the two fourth balls are arranged between the first frame and the second frame in the second direction.

According to at least one embodiment of the present disclosure, the focusing module further comprises a first position detecting device for detecting movement in a first direction and a second position detecting device for detecting movement in a second direction, wherein the first position detecting device is disposed on the focusing module base and the first frame, and the second position detecting device is disposed on the first frame and the second frame.

According to at least one embodiment of the present disclosure, the first position detecting means and the second position detecting means are disposed near a diagonal line passing through the center of the optical axis.

According to at least one embodiment of the present disclosure, the first and second position detecting devices include a permanent magnet and a hall sensor,

The permanent magnet of the first position detection device is arranged on the lower side surface of the bottom wall of the focusing module base, and the Hall sensor of the first position detection device is arranged on the upper side surface of the bottom wall of the first frame body; and

The permanent magnet of the second position detection device is arranged on the lower side surface of the bottom wall of the first frame body, and the Hall sensor of the second position detection device is arranged on the upper side surface of the bottom wall of the second frame body.

According to at least one embodiment of the present disclosure, the lens further includes a piezoelectric USM portion for moving the lens support portion to a focal position of the lens in an optical axis direction of the lens, and a guide ball portion for maintaining smooth movement of the lens support portion in the optical axis direction.

According to at least one embodiment of the present disclosure, the piezoelectric USM part and the guide ball part are disposed near both corners of the lens supporting part in a diagonal direction.

According to another aspect of the present disclosure, a camera apparatus includes:

The SMA wire optical anti-shake lens driving device is as described above;

At least one lens fixed in the lens support; and

An image sensor receiving light passing through the at least one lens.

According to yet another aspect of the present disclosure, an electronic device comprises a camera arrangement as described above.

Drawings

The accompanying drawings, which are included to provide a further understanding of the disclosure and are incorporated in and constitute a part of this specification, illustrate exemplary embodiments of the disclosure and together with the description serve to explain the principles of the disclosure.

Fig. 1 is a schematic cross-sectional view of an SMA wire optical anti-shake lens drive apparatus according to one embodiment of the disclosure.

Fig. 2 is a schematic cross-sectional view of an SMA wire optical anti-shake lens drive apparatus according to an embodiment of the disclosure.

Fig. 3 is a schematic cross-sectional view of an SMA wire optical anti-shake lens drive apparatus according to an embodiment of the disclosure.

Fig. 4 is a control schematic of an SMA wire optical anti-shake lens drive apparatus according to an embodiment of the disclosure.

Fig. 5 is a control schematic of an SMA wire optical anti-shake lens drive apparatus according to an embodiment of the disclosure.

Description of the reference numerals

10. Lens driving device

100. Automatic focusing module

101. Lens support

102. Focusing module base

103. Piezoelectric USM part

1031. Substrate board

1032. Piezoelectric element

1033. Silicone rubber

104. Guide ball part

1041. First guide ball member

1042. Second guide ball member

200. First frame

300. Second frame

400. First group of SMA wires

401. First SMA wire

402. Second SMA wire

500. Second group of SMA wires

501. Third SMA wire

502. Fourth SMA wire

601. First ball

602. Second ball

603. Third ball

604. Fourth ball

701. First position detecting device

702. Second position detecting device

7011. Permanent magnet

7012. Hall sensor

7021. Permanent magnet

7022. Hall sensor.

Detailed Description

The present disclosure is described in further detail below with reference to the drawings and the embodiments. It is to be understood that the specific embodiments described herein are merely illustrative of the relevant content and not limiting of the present disclosure. It should be further noted that, for convenience of description, only a portion relevant to the present disclosure is shown in the drawings.

In addition, embodiments of the present disclosure and features of the embodiments may be combined with each other without conflict. The technical aspects of the present disclosure will be described in detail below with reference to the accompanying drawings in conjunction with embodiments.

Unless otherwise indicated, the exemplary implementations/embodiments shown are to be understood as providing exemplary features of various details of some ways in which the technical concepts of the present disclosure may be practiced. Thus, unless otherwise indicated, features of the various implementations/embodiments may be additionally combined, separated, interchanged, and/or rearranged without departing from the technical concepts of the present disclosure.

The use of cross-hatching and/or shading in the drawings is typically used to clarify the boundaries between adjacent components. As such, the presence or absence of cross-hatching or shading does not convey or represent any preference or requirement for a particular material, material property, dimension, proportion, commonality between illustrated components, and/or any other characteristic, attribute, property, etc. of a component, unless indicated. In addition, in the drawings, the size and relative sizes of elements may be exaggerated for clarity and/or descriptive purposes. While the exemplary embodiments may be variously implemented, the specific process sequences may be performed in a different order than that described. For example, two consecutively described processes may be performed substantially simultaneously or in reverse order from that described. Moreover, like reference numerals designate like parts.

When an element is referred to as being "on" or "over", "connected to" or "coupled to" another element, it can be directly on, connected or coupled to the other element or intervening elements may be present. However, when an element is referred to as being "directly on," "directly connected to," or "directly coupled to" another element, there are no intervening elements present. For this reason, the term "connected" may refer to physical connections, electrical connections, and the like, with or without intermediate components.

For descriptive purposes, the present disclosure may use spatially relative terms such as "under … …," under … …, "" under … …, "" lower, "" above … …, "" upper, "" above … …, "" upper "and" side (e.g., as in "sidewall") to describe one component's relationship to another (other) component as illustrated in the figures. In addition to the orientations depicted in the drawings, the spatially relative terms are intended to encompass different orientations of the device in use, operation, and/or manufacture. For example, if the device in the figures is turned over, elements described as "under" or "beneath" other elements or features would then be oriented "over" the other elements or features. Thus, the exemplary term "below … …" may encompass both an orientation of "above" and "below". Furthermore, the device may be otherwise positioned (e.g., rotated 90 degrees or at other orientations) and the spatially relative descriptors used herein interpreted accordingly.

Fig. 1 shows a schematic cross-sectional view of an SMA (shape memory alloy) wire optical anti-shake lens drive apparatus 10 according to an embodiment of the disclosure.

The SMA wire optical anti-shake lens drive apparatus 10 may comprise an autofocus module 100, a first frame 200, a second frame 300, a first set of SMA wires 400, and a second set of SMA wires 500.

The autofocus module 100 includes a lens support 101 and a focus module base 102, and at least one imaging lens is accommodated in a hollow portion of the lens support 101.

The focus module base 102 provides a space for accommodating the lens support 101, and the lens support 101 is controlled to move relative to the focus module base 102 for focusing.

The auto-focus module 100 may further include a piezoelectric USM portion 103 and a guide ball portion 104.

The piezoelectric USM portion 103 mainly includes a substrate 1031, a piezoelectric element 1032, and silicone rubber 1033. The substrate 1031 may be a ceramic substrate, and may be supported by SiC, zirconia, or the like, for example, and the substrate 1031 may be integrally formed with the lens support 101. The silicone rubber 1033 may be provided on a side wall portion of the focus module base 102. Further, a flexible circuit board may be provided between the silicone rubber 1033 and the piezoelectric element 1032 to provide a control signal for the piezoelectric element 1032.

The piezoelectric USM section 103 is used to move the lens support section 101 to the focal position of the lens in the optical axis direction of the lens.

The auto-focusing module 100 may further include a guide ball part 104, which may include a plurality of guide ball members for receiving pressure from the piezoelectric USM part 103 and maintaining smooth movement of the lens support part 101 in the optical axis direction.

The piezoelectric USM portion 103 and the guide ball portion 104 are respectively provided at the vicinities of two corner portions in the diagonal direction of the lens support portion 101, the diagonal line being in a horizontal plane perpendicular to the optical axis direction and passing through the optical axis center point of the lens.

The guide ball portion 104 includes a first guide ball member 1041 and a second guide ball member 1042.

Guide grooves accommodating the first guide ball members 1041 and the second guide ball members 1042 are opened on the side walls of the lens support 101 and the focus module base 102 so that the first guide ball members 1041 and the second guide ball members 1042 roll when the lens support 101 moves.

The first guide ball member 1041 may include three balls arranged in the optical axis direction, and the upper ball and the lower ball have the same diameter and are greater than or equal to the diameter of the middle ball. The second guide ball member 1042 may include three balls arranged in the optical axis direction, and the upper ball and the lower ball have the same diameter and are greater than or equal to the diameter of the middle ball.

The first frame 200 is located outside the auto-focusing module 100 and provides a space for accommodating the auto-focusing module 100. Wherein the first frame 200 surrounds the auto-focusing module 100.

And a second frame 300, the second frame 300 being located outside the first frame 200 and providing a space for accommodating the first frame 200, wherein the second frame 300 surrounds the first frame 200.

The first group of SMA wires 400, the first group of SMA wires 400 are disposed on one side of the lens driving device 10, and two ends of the first group of SMA wires 400 are fixedly connected to the focusing module base 102 and the first frame 200, respectively, so as to realize movement of the lens supporting portion 101 in the first direction when the first group of SMA wires 400 is energized.

The second group of SMA wires 500 is disposed at the other side adjacent to one side of the lens driving device, and both ends of the second group of SMA wires 500 are fixedly connected to the first and second frames 200 and 300, respectively, so as to realize movement of the lens supporting part 101 in the second direction when the second group of SMA wires 500 is energized.

The first direction and the second direction are located in a plane direction perpendicular to an optical axis direction of the lens, and the first direction is perpendicular to the second direction. In fig. 1, the first direction may be an X direction and the second direction may be a Y direction.

The first set of SMA wires 400 includes a first SMA wire 401 and a second SMA wire 402.

A first end of the first SMA wire 401 is fixed to the focus module base 102, and a second end of the first SMA wire 401 is fixed to the first frame 200, so that when the first SMA wire 401 is energized, the focus module base 102 is controlled to control the lens support 101 to move in the positive direction x+ of the first direction.

Thus, when the first SMA wire 401 is energized, the first SMA wire 401 contracts to a memory shape, which pulls the focus module base 102 toward the x+ direction.

Wherein the first SMA wire 401 is spaced apart from the second end by a predetermined distance, for example, the first end is located at one corner of the focus module base 102, and the second end is located on the first frame 200 near another corner of the focus module base 102 adjacent to the corner.

A first end of the second SMA wire 402 is fixed to the first frame 200 and a second end of the second SMA wire 402 is fixed to the focus module base 102 so as to control the focus module base 102 to move in a direction X-opposite to the first direction when the second SMA wire 402 is energized.

Thus, when the second SMA wire 402 is energized, the second SMA wire 402 contracts to a memory shape, which pulls the focus module base 102 toward the X-direction.

Wherein the first end and the second end of the second SMA wire 402 are spaced apart by a predetermined distance, for example, the first end is located on the first frame 200 near the one corner of the focus module base 102, and the second end is located at the other corner of the focus module base 102.

The second set of SMA wires 500 includes a third SMA wire 501 and a fourth SMA wire 502.

A first end of the third SMA wire 501 is fixed to the first frame 200 and a second end of the third SMA wire 501 is fixed to the second frame 300 so as to control the first frame 200 and thus the focus module base 102 and the lens support 101 to move in a positive direction y+ of the second direction when the third SMA wire 501 is energized.

Thus, when the third SMA wire 501 is energized, the third SMA wire 501 contracts to a memory shape, which pulls the first frame 200 to move in the y+ direction.

Wherein the first end and the second end of the third SMA wire 501 are spaced apart by a predetermined distance, for example, the first end is located near one corner of the first frame 200 and the second end is located on the second frame 300 near another corner of the first frame 200 adjacent to the corner.

The first end of the fourth SMA wire 502 is fixed to the second frame 300 and the second end of the fourth SMA wire 502 is fixed to the first frame 200 so as to control the first frame 200 and thus the focus module base 102 and the lens support 101 to move in the opposite direction Y-of the second direction when the fourth SMA wire 502 is energized.

Thus, when the fourth SMA wire 502 is energized, the fourth SMA wire 502 contracts to a memory shape, which pulls the first frame 200 to move in the Y-direction.

Wherein the first end and the second end of the fourth SMA wire 502 are spaced apart by a predetermined distance, e.g., the first end is located near the other corner of the second frame 300 and the second end is located near the one corner of the first frame 200.

In accordance with at least one embodiment of the present disclosure, there is further included a first ball 601 and a second ball 602, the first ball 601 and the second ball 602 being for guiding movement in a first direction X,

The first ball 601 is disposed on one side of the lens driving device 10 and is located between the focus module base 102 and the first housing 200.

The second ball 602 is disposed on an opposite side of the lens driving device from the first side, and is located between the focus module base 102 and the first frame 200.

According to at least one embodiment of the present disclosure, referring to fig. 2, V-grooves are provided on the outer side surface of the focus module base 102, and V-grooves are provided on the inner side surface of the first frame 200, with the first and second balls 601 and 602 being located between the V-grooves of the focus module base 102 and the V-grooves of the first frame 200.

Wherein the V-grooves of the balls each have a length so as to provide a ball movement space in the X-direction. In this way, the interval between the focus module base 102 and the first frame 200 can be effectively reduced.

According to at least one embodiment of the present disclosure, the number of the second balls 602 is two, and the two second balls 602 are arranged between the focus module base 102 and the first frame 200 along the first direction X.

According to at least one embodiment of the present disclosure, a third ball 603 and a fourth ball 604 are further included, the third ball 603 and the fourth ball 604 being for guiding movement in the second direction Y.

The third ball 603 is disposed at the other side of the lens driving device 10 and is located between the first and second housings 200 and 300.

The fourth ball 604 is disposed on the opposite side of the other side of the lens driving device 10, and is located between the first frame 200 and the second frame 300.

According to at least one embodiment of the present disclosure, a V-groove is provided on an outer side surface of the first housing 200, and a V-groove is provided on an inner side surface of the second housing 300, with the third ball 603 and the fourth ball 604 being located between the V-groove of the first housing 200 and the V-groove of the second housing 300.

According to at least one embodiment of the present disclosure, the number of the fourth balls 604 is two, and the two fourth balls 604 are arranged between the first frame body 200 and the second frame body 300 in the second direction.

Wherein the V-grooves of the balls each have a length so as to provide a ball movement space in the X-direction. In this way, the interval between the second frame 300 and the first frame 200 can be effectively reduced.

Wherein all of the V-grooves described above, which may be V-shaped in the optical axis direction, have a certain length in the X-direction (first and second balls) or the Y-direction (third and fourth balls) so as to allow the balls to move in the X-direction or the Y-direction and restrict the balls from moving in the optical axis direction.

According to at least one embodiment of the present disclosure, the focusing module further includes a first position detecting device 701 for detecting movement in the first direction X and a second position detecting device 702 for detecting movement in the second direction Y, wherein the first position detecting device 701 is disposed on the focusing module base 102 and the first frame 200, and the second position detecting device 702 is disposed on the first frame 200 and the second frame 300.

The positions of the AF (auto focus) module in the X direction and the Y direction are known by detection signals of the first position detecting device 701 and the second position detecting device 702, and the control manner of the SMA wire is controlled according to the detection signals.

According to at least one embodiment of the present disclosure, the first position detecting device 701 and the second position detecting device 702 are disposed near a diagonal line passing through the center of the optical axis.

Referring to fig. 3, the first position detecting device 701 includes a permanent magnet 7011 and a hall sensor 7012.

The permanent magnet 7011 is provided on the bottom side wall of the focus module base 102, and a hall sensor 7012 is provided at a corresponding position of the upper side surface of the bottom wall of the first frame 200, and when the permanent magnet 7011 moves relative to the hall sensor 7012 in the X direction, the hall sensor 7012 determines the movement in the X direction from the magnetic field change of the permanent magnet 7011.

Referring to fig. 2, the second position detecting device 702 includes a permanent magnet 7021 and a hall sensor 7022.

The permanent magnet 7021 is provided on the bottom side wall of the first frame 200, and a hall sensor 7022 is provided at a corresponding position of the upper side surface of the bottom wall of the second frame 300, and when the permanent magnet 7021 moves relative to the hall sensor 7022 in the Y direction, the hall sensor 7022 determines the movement in the Y direction from the magnetic field change of the permanent magnet 7021.

Figures 4 and 5 show control diagrams of SMA wires. Fig. 4 shows that when the second SMA wire is energized, the focus base may move in the X-direction, thereby driving the lens support portion to move in the X-direction, and when the third SMA wire is energized, the first frame may move in the y+ direction, thereby driving the focus base and the lens support portion to move in the y+ direction.

As shown in fig. 5, when the first SMA wire is energized, the focus base may move in the x+ direction, thereby driving the lens support portion to move in the x+ direction, and when the fourth SMA wire is energized first, the first frame may move in the Y-direction, thereby driving the focus base and the lens support portion to move in the Y-direction.

It should be noted that each SMA wire may be controlled separately, or two SMA wires or more than two SMA wires may be controlled simultaneously in combination with actual situations.

The SMA wire optical anti-shake lens driving apparatus as above;

at least one lens fixed in the lens support 101; and

An image sensor that receives light passing through the at least one lens.

In the present disclosure, in the optical anti-shake control, since the control in the X direction and the control in the Y direction are performed by controlling different components, according to the scheme of the present disclosure, interference of the XY direction control can be avoided.

According to yet another aspect of the present disclosure, an electronic device includes a camera apparatus as above.

In the description of the present specification, reference to the terms "one embodiment/manner," "some embodiments/manner," "example," "a particular example," "some examples," etc., means that a particular feature, structure, material, or characteristic described in connection with the embodiment/manner or example is included in at least one embodiment/manner or example of the application. In this specification, the schematic representations of the above terms are not necessarily for the same embodiment/manner or example. Furthermore, the particular features, structures, materials, or characteristics described may be combined in any suitable manner in any one or more embodiments/modes or examples. Furthermore, the various embodiments/modes or examples described in this specification and the features of the various embodiments/modes or examples can be combined and combined by persons skilled in the art without contradiction.

Furthermore, the terms "first," "second," and the like, are used for descriptive purposes only and are not to be construed as indicating or implying a relative importance or implicitly indicating the number of technical features indicated. Thus, a feature defining "a first" or "a second" may explicitly or implicitly include at least one such feature. In the description of the present application, the meaning of "plurality" means at least two, for example, two, three, etc., unless specifically defined otherwise.

It will be appreciated by those skilled in the art that the above-described embodiments are merely for clarity of illustration of the disclosure, and are not intended to limit the scope of the disclosure. Other variations or modifications will be apparent to persons skilled in the art from the foregoing disclosure, and such variations or modifications are intended to be within the scope of the present disclosure.

Claims

1. An SMA wire optical anti-shake lens drive apparatus comprising:

Wherein the first direction and the second direction are located in a plane direction perpendicular to an optical axis direction of the lens, and the first direction is perpendicular to the second direction,

Wherein the first set of SMA wires comprises a first SMA wire and a second SMA wire, a first end of the first SMA wire being fixed to the focus module base and a second end of the first SMA wire being fixed to the first frame so as to control movement of the lens support in a positive direction of the first direction when the first SMA wire is energized; and a first end of the second SMA wire is fixed to the first frame and a second end of the second SMA wire is fixed to the focus module base so as to control the lens support to move in a direction opposite to the first direction when the second SMA wire is energized,

Wherein the second set of SMA wires comprises a third SMA wire and a fourth SMA wire, a first end of the third SMA wire being fixed to the first frame and a second end of the third SMA wire being fixed to the second frame so as to control movement of the lens support in a positive direction of the second direction when the third SMA wire is energized; and a first end of the fourth SMA wire is fixed to the second frame and a second end of the fourth SMA wire is fixed to the first frame so as to control movement of the lens support in a direction opposite to the second direction when the fourth SMA wire is energized,

Comprising a first ball and a second ball for guiding movement in the first direction, the first ball being disposed on the one side of the lens driving device and between the focus module base and the first frame; and the second ball is arranged on the opposite side of the lens driving device, and is positioned between the focusing module base and the first frame body,

And third and fourth balls for guiding movement in the second direction, the third ball being disposed on the other side of the lens driving device and between the first and second frames; and the fourth ball is disposed on the opposite side of the other side of the lens driving device and between the first frame and the second frame,

Further comprising first position detecting means for detecting movement in a first direction and second position detecting means for detecting movement in a second direction, the first position detecting means and the second position detecting means being disposed in the vicinity of a diagonal line passing through the center of the optical axis;

And a piezoelectric USM part for moving the lens support part to a focus position of the lens in an optical axis direction of the lens, the flexible circuit board provides control signals for the piezoelectric elements of the piezoelectric USM section.

2. The SMA wire optical anti-shake lens drive apparatus according to claim 1, wherein a V-shaped groove is provided on an outer side surface of the focus module base, and a V-shaped groove is provided on an inner side surface of the first frame, and the first ball and the second ball are located between the V-shaped groove of the focus module base and the V-shaped groove of the first frame.

3. An SMA wire optical anti-shake lens drive apparatus according to claim 2, wherein the number of the second balls is two, and the two second balls are arranged between the focus module base and the first frame in the first direction.

4. The SMA wire optical anti-shake lens drive apparatus according to claim 3, wherein a V-shaped groove is provided on an outer side surface of the first frame body, and a V-shaped groove is provided on an inner side surface of the second frame body, and the third ball and the fourth ball are located between the V-shaped groove of the first frame body and the V-shaped groove of the second frame body.

5. The SMA wire optical anti-shake lens drive apparatus according to claim 4, wherein the number of the fourth balls is two, and the two fourth balls are arranged between the first frame and the second frame in the second direction.

6. The SMA wire optical anti-shake lens drive apparatus of claim 1, wherein said first and second position detection devices comprise a permanent magnet and a hall sensor, respectively,

7. The SMA wire optical anti-shake lens drive apparatus according to any one of claims 1 to 6, further comprising a guide ball portion that holds smooth movement of the lens support portion in the optical axis direction.

8. An SMA wire optical anti-shake lens drive apparatus according to claim 7, wherein the piezoelectric USM portion and the guide ball portion are disposed in the vicinity of two corners of the lens support portion in the diagonal direction.

9. A camera apparatus, comprising:

An SMA wire optical anti-shake lens drive apparatus according to any one of claims 1 to 8;

At least one lens fixed in the lens support; and

An image sensor receiving light passing through the at least one lens.

10. An electronic device comprising a camera arrangement as claimed in claim 9.