CN111751958A

CN111751958A - Mobile platform device for lens driving device and lens driving device

Info

Publication number: CN111751958A
Application number: CN202010771501.5A
Authority: CN
Inventors: 林小军
Original assignee: Individual
Current assignee: Individual
Priority date: 2020-08-04
Filing date: 2020-08-04
Publication date: 2020-10-09

Abstract

The invention discloses a mobile platform device for a lens driving device and the lens driving device, comprising: the device comprises a fixed frame, a movable bracket and at least 2 sheet springs, wherein the fixed frame and the movable bracket are matched with each other; the sheet spring comprises a working part, a first fixing part and a second fixing part, wherein the first fixing part and the second fixing part are arranged at two ends of the working part; the first fixing part is fixed on the movable support, and the second fixing part is fixed on the fixed frame; wherein a projection of the working portion of the leaf spring on a plane perpendicular to the optical axis of the moving bracket is a curved line or a broken line; wherein the material surface of the working part of the leaf spring is parallel to the optical axis; the structure is simple and reliable.

Description

Mobile platform device for lens driving device and lens driving device

Technical Field

The present invention relates to a camera lens, and more particularly, to a movable platform device for a lens driving device and a lens driving device.

Background

Small camera modules have been widely used in many types of portable electronic devices, such as smart phones. Many advanced camera functions, such as auto-focus, are integrated into a compact camera module. Recently, the market requires that the camera module be equipped with an optical image stabilization function, which in turn requires a lens driving device capable of moving the imaging lens in a direction perpendicular to the optical axis (i.e., XY direction). The conventional XY-direction moving device is mainly of a suspended filament type, but the suspended filament is extremely fine and therefore easily broken, and the processing is troublesome. Therefore, there is a strong need for a new XY moving stage device that is more durable than a suspension wire without using a suspension wire.

Disclosure of Invention

In order to solve the problems indicated in the above background art, an object of the present invention is to provide a moving platform device for a lens driving device, which is simple in structure, reliable, and durable.

The above purpose is realized by the following technical scheme:

a moving platform device for a lens driving device, comprising: the device comprises a fixed frame, a movable bracket and at least 2 sheet springs, wherein the fixed frame and the movable bracket are matched with each other;

the sheet spring comprises a working part, a first fixing part and a second fixing part, wherein the first fixing part and the second fixing part are arranged at two ends of the working part;

the first fixing part is fixed on the movable support, and the second fixing part is fixed on the fixed frame;

wherein the projection of the working part of the leaf spring on a plane perpendicular to the optical axis is a curve or a broken line;

wherein the material plane of the working part of the leaf spring is parallel to the optical axis.

In some embodiments, a first positioning mechanism is respectively disposed on the first fixing portion and the second fixing portion of the leaf spring, and the first positioning mechanism and a second positioning mechanism disposed on the fixed frame and the movable frame are respectively matched with each other to ensure that the material surface of the working portion of the leaf spring is parallel to the optical axis.

In some embodiments, the material of the first positioning mechanism and the material of the leaf spring are the same or different.

In some embodiments, the material of the leaf spring is a conductive material or an insulating material.

In some embodiments, the leaf spring is a single layer, or is made of two or more layers of laminated, bonded, adhered, coated or coated leaf material;

in some embodiments, the leaf springs, whether single-layered or multi-layered, are further over-coated to achieve protection of the leaf springs from corrosion, oxidation, moisture, insulation, and other functions or purposes.

In some embodiments, the first fixing portion, the second fixing portion or the first positioning mechanism of the leaf spring is fixed to the fixing frame or the moving support by means including, but not limited to, adhesive bonding, screw fastening, hot riveting, welding, mortise and tenon joint, concave-convex anastomosis or cross-fitting in various ways.

In some embodiments, the mobile gantry houses an imaging lens.

In some embodiments, an automatic focusing mechanism is mounted on the moving support, and the automatic focusing mechanism can drive the imaging lens to move back and forth along the direction of the optical axis.

Another object of the present invention is to provide a lens driving device, which is simple and reliable.

The above purpose is realized by the following technical scheme:

a lens driving device comprises an automatic focusing mechanism, an optical image stabilizing mechanism and at least 2 sheet springs, wherein the automatic focusing mechanism is abbreviated as AF mechanism hereinafter, and the optical image stabilizing mechanism is abbreviated as OIS mechanism hereinafter;

the AF mechanism comprises a lens support, a magnet support, at least two spring plates, at least one AF coil and at least one magnet, wherein the AF coil is fixed on the lens support;

wherein the OIS mechanism comprises a base and a plurality of OIS coils, the OIS coils are fixed on the base, and the plurality of OIS coils of the OIS mechanism and the magnet of the AF mechanism are mutually associated in an operation mode so as to push the whole automatic focusing mechanism to move along a direction perpendicular to an optical axis;

wherein the material plane of the working portion of the leaf spring is parallel to the optical axis.

In some embodiments, at least one of the at least two resilient pieces of the AF mechanism has one end fixed to an upper portion of the lens holder and the other end fixed to an upper portion of the magnet holder; one end of at least one of the elastic sheets is fixed at the lower part of the lens support, and the other end of the elastic sheet is fixed at the lower part of the magnet support.

In some embodiments, an electrode foot is wrapped on the base of the OIS mechanism. In some embodiments, the AF coil is electrically connected to the leaf spring of the auto-focusing mechanism, and the leaf spring is electrically connected to the leaf spring and is connected to the electrode pin of the optical image stabilizing mechanism through the leaf spring to realize the electrical connection with the outside.

In some embodiments, the optical image stabilization mechanism further comprises a printed circuit board, the OIS coil is fixed to the printed circuit board, and the printed circuit board is fixed to the base of the OIS mechanism.

In some embodiments, an electrode pin for connection with the outside is provided on the printed circuit board.

In some embodiments, the lens driving apparatus further includes at least one hall element for detecting a position of the lens holder or a position of the magnet holder. In some embodiments, the lens driving apparatus further includes at least one position sensor for detecting a position of the lens holder or a position of the magnet holder.

Compared with the prior art, the invention at least comprises the following beneficial effects:

1. the moving platform device and the lens driving device do not use a suspension structure, so that the moving platform device and the lens driving device are more reliable and durable, and have simple and compact structures and are easier to manufacture.

Drawings

FIG. 1 is a perspective view of a basic concept of a mobile platform device according to an embodiment;

FIG. 2 is a top view of FIG. 1 in the example;

FIG. 3 is a front or side view of FIG. 1 in the example;

FIG. 4 is a first structural view of a leaf spring in the embodiment;

FIG. 5 is a second structural view of the leaf spring in the embodiment;

FIG. 6 is a third structural view of the leaf spring in the embodiment;

FIG. 7 is a fourth structural view of the leaf spring in the embodiment;

FIG. 8 is a schematic structural view of a leaf spring provided with an outer wrap in an embodiment;

fig. 9 is a schematic structural diagram of a lens driving device in an embodiment;

FIG. 10 is a schematic structural diagram of an automatic focusing mechanism in the embodiment;

fig. 11 is a perspective view of the printed circuit board in the embodiment.

Detailed Description

For a more clear understanding of the technical features, objects and effects of the present invention, embodiments of the present invention will now be described in detail with reference to the accompanying drawings. In the following detailed description, numerous specific details are set forth in order to provide a thorough understanding of claimed subject matter. However, it will be understood by those skilled in the art that claimed subject matter may be practiced without these specific details. Furthermore, it is obvious that the following description is only of some embodiments of the invention, from which other embodiments can be derived by a person skilled in the art without inventive step. Additionally, methods, apparatus, or systems that are well known to those of ordinary skill have not been described in detail so as not to obscure claimed subject matter.

Reference in the specification to "one embodiment" or "an embodiment" may mean that a particular feature, structure, or characteristic described in connection with the particular embodiment may be included in at least one embodiment of the subject matter claimed. Thus, the appearances of the phrases "in one embodiment" or "an embodiment" in various places throughout this specification are not intended to refer to the same embodiment or to any one particular embodiment described. Furthermore, it should be appreciated that the particular features, structures, or characteristics described may be combined in various ways in one or more embodiments. Generally, of course, these and other issues will vary with the particular context of the application. Thus, a description of these terms or a particular context of the application can provide useful guidance regarding inferences about that context.

Similarly, the terms "and," "and/or," and "or" as used herein may include various meanings that depend, at least in part, on the context in which the terms are used. Typically, "or" and/or "if used in connection with a list, such as A, B or C, means A, B and C for inclusive and Z, B or C for exclusive meaning. Furthermore, the term "one or more" is used herein to describe any feature, structure, or characteristic either individually or in some combination. It should be noted, however, that this is merely an illustrative example and that claimed subject matter is not limited to this example.

In the description of the present specification, it is to be understood that the terms "front", "rear", "upper", "lower", etc., indicate orientations or positional relationships based on the orientations or positional relationships shown in the drawings, and are only for convenience in describing the present invention and simplifying the description, but do not indicate or imply that the device or element referred to must have a particular orientation, be constructed and operated in a particular orientation, and thus, should not be construed as limiting the present invention. Thus, "upper" and "lower" may be effectively substituted with "top" and "bottom", "first" and "second", "left" and "right", and so on.

It is understood that the protection is not limited to the preferred embodiments described above, and it is needless to say that modifications to the specific embodiments of the invention or equivalent substitutions of parts of technical features are made without departing from the spirit of the invention, which is intended to be covered by the scope of the claims.

Fig. 1 is a perspective view illustrating a basic concept of a moving platform device for a lens driving device according to the present invention. Fig. 2 is a plan view of fig. 1, and fig. 3 is a front or side view (left or right view) of fig. 1. In fig. 3, the optical axis direction is defined as the Z-axis direction or the Z-axis is defined as the optical axis. The invention provides a mobile platform device for a lens driving device, in particular to a micro XY mobile platform device, which comprises: a fixed frame 1, a movable bracket 2 and at least 2 sheet springs 3; wherein the leaf spring 3 comprises a working part 30, a first fixing part 31 and a second fixing part 32 arranged at two ends of the working part 30; wherein the first fixing portion 31 is fixed on the movable bracket 2, and wherein the second fixing portion 32 is fixed on the fixed bracket 1. Wherein the working portion 30 of the leaf spring is a deformable portion. In the present embodiment, the projection of the working portion 30 (fig. 2) on a plane perpendicular to the optical axis Z (i.e., XY plane) is a curve. In one embodiment, the projection of the working portion 30 on the XY plane is a polygonal line. As can be seen from fig. 1, 2, and 3, the material plane 300 (i.e., the material plane) of the working portion of the leaf spring is parallel to the Z-axis.

As shown in fig. 1, when the moving frame 2 is subjected to a force in a direction perpendicular to the optical axis (i.e., Z-axis), the moving frame 2 can move in the direction of the force because the sheet spring 3 has a very small elastic modulus in the direction perpendicular to the optical axis and is very easily elastically deformed. On the other hand, since the material surface 300 of the leaf spring 3 is parallel to the optical axis, the elastic modulus of the leaf spring 3 in the optical axis direction is very large, and thus the moving holder hardly moves when a normal force is applied to the working portion in the optical axis direction.

In the present invention, the fixed frame 1 is a stationary/moving reference coordinate of the moving frame 2 with respect to the moving frame 2. When the moving support 2 moves in any direction perpendicular to the optical axis Z, the moving distance, speed, coordinates, etc. are relative to the fixed support 1. In some embodiments applied to the mobile platform, the mobile carriage 2 moves relative to the fixed frame 1, while the fixed frame 2 is fixed relative to another reference. Therefore, the movement of the mobile carriage 2 on the fixed frame 1, i.e. the movement of the mobile carriage 2 with respect to the other reference object. In some embodiments applied to the mobile platform, the mobile carriage 2 moves relative to the fixed frame 1, and the fixed frame 1 moves further relative to another reference object. The movement of the mobile carriage 2 with respect to the other reference is therefore the resultant of the two movements.

In this embodiment, the fixing frame 1 may be a flat plate, or a square, circular, or any shape frame, or any shape member. All components fixed to the holder 1, as well as components fixed at positions other than the holder 1, but at constant positions relative to the holder 1, can be considered as part of the holder 1.

Fig. 4, 5, 6 and 7 show a schematic view of the construction of some leaf springs. All leaf springs comprise three parts, a working part 30, a first fixing part 31 and a second fixing part 32. Generally, the fixing

portions

31 and 32 are provided at both ends of the work 30, and the shape and structure thereof are not limited. In some embodiments, the first fixing portion 31 and the second fixing portion 32 may be designed to have the same or different structures. In some embodiments, the structure of the fixing portion is simple, and in some embodiments, the structure of the fixing portion is very complex. When the leaf spring 3 is used as a separate member, as shown in fig. 5, the working portion 30 may be a simple planar leaf, or may have a complex structure of bent, curved, or irregular shape (fig. 4 and 6). However, once assembled into the mobile platform, the projection of the working portion 30 of the leaf spring 3 onto a plane perpendicular to the optical axis Z must be curved, or broken. Fig. 4 further shows that the working portion 30 has an L-shaped structure on the material surface 300, i.e., the working portion 30 does not have a long straight strip structure but has a bent portion. In one embodiment, the working portion 30 may also have a more complex structure, such as an 'S' shaped structure, or the like. However, whatever the structure, the key points are that (1) once the mobile platform is assembled, the projection of the working part 30 of the leaf spring 3 in the direction perpendicular to the optical axis is a curve or a broken line, and the curve or the broken line is not necessarily continuous (as shown in fig. 7 b); (2) once assembled into the mobile platform, the material plane 300 of the working portion 30 is parallel to the optical axis. Fig. 7 shows an embodiment of a leaf spring, in fig. 7, the leaf spring working portion 30 is divided into two

parts

301 and 302, the first working portion 301 and the second working portion 302 are formed by connecting a connecting portion 303, the structural shape of the connecting portion 303 is complex, the elastic modulus of the connecting portion 303 in X, Y and the Z direction is relatively large, and the connecting portion does not deform in the normal working range but only realizes the function of transmitting the acting force. In the sheet spring 3, when it is necessary to deform in the X direction, the first operating portion 301 generates a necessary deformation, and when it is necessary to deform in the Y direction, the second operating portion 303 generates a necessary deformation. The projections of the first working part 301 and the second working part 302 on a plane perpendicular to the optical axis are two discontinuous line segments, and the two line segments are not parallel to each other. The end points of these two line segments (which refer to the projected points of the connecting portion and the working portion 30) may be connected by a virtual straight line, as shown by the dotted line in fig. 7. Therefore, it can be said that the projection of the working portion 30 (sum of 301 and 302) of the leaf spring 3 on a plane perpendicular to the optical axis is curved or broken. According to the concept disclosed in the present embodiment, those skilled in the art can easily cite many other embodiments of the leaf spring 3, in which the projection of the working part on the plane perpendicular to the optical axis is a discontinuous line segment. All segments may be connected by imaginary straight lines in accordance with the principles set forth above to form a curve or polyline consisting of projected segments and imaginary lines. It goes without saying that all these embodiments do not depart from the scope of protection defined by the present invention.

Further, the first fixing portion 31 and the second fixing portion 32 of the leaf spring 3 are respectively provided with a first positioning mechanism (fig. 5), and the shape and structure thereof are not limited. The first positioning mechanisms arranged on the first fixing part 31 and the second fixing part 32 may have the same or different structural designs. The first positioning mechanisms disposed on the first fixing portion 31 and the second fixing portion 32 are respectively matched with the second positioning mechanisms disposed on the fixing frame 1 and the movable bracket 2, so as to ensure that the material surface 300 of the working portion 30 of the sheet spring 3 is parallel to the optical axis. In one embodiment, the material of the first positioning mechanism and the material of the leaf spring 3 may be the same or different. In one embodiment, the first positioning mechanism is made of various engineering plastics so as to facilitate the production of complex shapes. Further, the first fixing portion 31, the second fixing portion 32 of the leaf spring 3 or the manner of fixing the first positioning mechanism to the fixing frame 1 or the movable support 2 is not limited, and includes but is not limited to adhesive bonding, screw fastening, hot riveting, welding, mortise and tenon, concave-convex anastomosis or various cross-fitting manners.

The leaf spring 3 is made of a leaf material, and the constituent material thereof is not limited. In the present embodiment, the material of the leaf spring 3 is a conductive material or an insulating material. In one embodiment, the leaf spring 3 is a single layer, or is made of two or more (fig. 8a) (including two) layers of laminated, bonded, adhered, coated or coated sheet material. In one embodiment, the single or multi-layer leaf spring 3 may further have various overwraps 312 to encase the leaf material in all orientations for protection, corrosion protection, oxidation protection, moisture release protection, insulation, dampening enhancement, or other functions. That is, whether a single layer or two or more layers of sheet material, the exterior may have a protective or functional layer (or layers) (fig. 8b) to protect the spring or improve the spring performance.

In one embodiment, the mobile carriage 2 carries an imaging lens therein.

In an embodiment, an auto-focusing mechanism is mounted on the moving bracket 2, and the auto-focusing mechanism can drive the imaging lens to move back and forth along the optical axis Z direction.

Example two: as shown in fig. 9 and 10, the present embodiment provides a lens driving apparatus using the above moving stage apparatus, including an Auto Focus (AF) mechanism, an Optical Image Stabilization (OIS) mechanism, and at least 2 leaf springs 3;

the automatic focusing mechanism comprises a lens support 4, a magnet support 5, at least two elastic sheets 6, at least one AF coil 7 fixed on the lens support 4 and at least one magnet 8 fixed on the magnet support 5, wherein the AF coil 7 and the magnet 8 are mutually associated in an operation mode so as to push the lens support 4 to move back and forth along the direction of an optical axis. Specifically, when the AF coil 7 is powered on, the AF coil interacts with the magnet 8 to generate electromagnetic acting force, so as to push the lens holder 4 to move along the optical axis;

wherein the optical image stabilizing mechanism comprises a base 9 and a plurality of OIS coils 10, the OIS coils 10 are fixed on the base 9, and the plurality of OIS coils 10 of the optical image stabilizing mechanism and the magnet 8 of the automatic focusing mechanism are mutually associated in an operating way so as to push the automatic focusing mechanism to move integrally along a direction vertical to the optical axis;

the sheet spring 3 includes a working portion 30, a first fixing portion 31 and a second fixing portion 32 disposed at two ends of the working portion 30, wherein the working portion 30 is a deformable portion that can deform, the shape and structure of the first fixing portion 31 and the second fixing portion 32 are not limited, the first fixing portion 31 is fixed on the magnet support 5 of the auto-focusing mechanism, and the second fixing portion 32 is fixed on the base 9 of the optical image stabilizing mechanism. It can be seen that the magnet holder 5 corresponds to the movable holder 2 in the above-described embodiment of the mobile platform device, and the base corresponds to the fixed holder 1 in the embodiment;

wherein the projection of the working portion 30 of the leaf spring 3 on a plane perpendicular to the optical axis is a curved line or a broken line;

wherein the material plane 300 of the working part 30 of the leaf spring 3 is parallel to the optical axis.

The lens driving device of the embodiment has simple and compact structure and relatively higher reliability, and can realize the back-and-forth movement of the automatic focusing mechanism in the direction vertical to the optical axis.

In an embodiment, the automatic focusing mechanism further comprises at least two elastic pieces 6, wherein one end of at least one of the elastic pieces 6 is fixed on the upper part of the lens holder 4, and the other end is fixed on the upper part of the magnet holder 5; one end of at least one elastic sheet 6 is fixed at the lower part of the lens bracket 4, and the other end is fixed at the lower part of the magnet bracket 5.

In one embodiment, the base 9 of the optical image stabilization mechanism is wrapped by an electrode pin 91, and the electrode pin 91 is embedded in the plastic base 91 or the fixing frame material by insert injection molding. In one embodiment, the AF coil 7 is electrically connected to the leaf spring 6 of the auto-focusing mechanism, and the leaf spring 6 is electrically connected to the leaf spring 3 and connected to the electrode pin 91 of the optical image stabilizing mechanism through the leaf spring 3 to realize the electrical connection with the outside. In one example, the electrode feet 91 are bonded or otherwise secured to the base 9 or a fixed platform.

In one embodiment (fig. 11), the optical image stabilizing mechanism further comprises a printed circuit board 11, the OIS coil 10 is fixed on the printed circuit board 11, and the printed circuit board 11 is fixed on the base 9 of the optical image stabilizing mechanism. The printed circuit board may be a conventional rigid printed circuit board, or may be a flexible bendable FPCB printed circuit board.

In one embodiment, an electrode pin 91 for connection with the outside is provided on the printed circuit board 11. When the OIS coil 10 is energized, the OIS coil 10 and the magnet 8 on the autofocus mechanism interact to generate an electromagnetic force that moves the autofocus mechanism in a direction perpendicular to the optical axis.

In one embodiment, the lens driving apparatus further includes at least one hall element for detecting a position of the lens holder 4 or a position of the magnet holder 5. In one embodiment, the lens driving apparatus further includes at least one position sensor for detecting a position of the lens holder 4 or a position of the magnet holder 5.

The following describes the operation of the lens driving apparatus according to the present embodiment:

when the magnet holder 5 is subjected to an acting force in any direction perpendicular to the optical axis, the sheet spring 3 can be deformed in the direction of the acting force due to the curved nature of the sheet spring 3, and therefore, the magnet holder 5 is moved in the direction of the acting force. When a plurality of acting forces in different directions are vertical to the optical axis direction, all the acting forces can be superposed to form a total acting force, namely a resultant force, and the sheet spring 3 can deform along the direction of the resultant force to force the magnet support 5 to move along the direction of the resultant force. The magnet support 5 drives the lens support and the lens to integrally move along the direction of resultant force along with the magnet support through the elastic sheet 6.

In addition, since the sheet spring 3 has a small elastic coefficient in the direction perpendicular to the material plane 300, it is easily deformed; and the elastic modulus in the transverse direction in the material face 300 is large and is hard to deform. Therefore, when the magnet holder 5 receives a force in the optical axis direction, the magnet holder 5 is substantially stationary and the sheet spring 3 is substantially not deformed. Of course, the force acting in the optical axis direction is so large that the leaf spring 3 is also deformed in the optical axis direction, and the deformation is often destructive plastic deformation, and the leaf spring 3 is irreversibly plastically deformed. Therefore, the invention is only suitable for the condition of small acting force and is particularly suitable for the field of mobile phone cameras.

What has been described above are merely some embodiments of the present invention. It will be apparent to those skilled in the art that various changes and modifications can be made without departing from the inventive concept thereof, and these changes and modifications can be made without departing from the spirit and scope of the invention.

Claims

1. A moving platform device for a lens driving device, comprising: a fixed frame, a movable bracket and at least 2 sheet springs;

2. A moving platform device for a lens driving device as claimed in claim 1, wherein a first positioning mechanism is disposed on the first fixing portion and the second fixing portion of the leaf spring, respectively, and the first positioning mechanism cooperates with a second positioning mechanism disposed on the fixing frame and the moving bracket to ensure that the material plane of the working portion of the leaf spring is parallel to the optical axis.

3. A moving platform device for a lens driving device according to claim 2, wherein the material of the first positioning mechanism and the material of the leaf spring are the same or different.

4. The moving platform device for a lens driving device as claimed in claim 1, wherein the leaf spring is a single layer, or is formed by laminating, bonding, adhering, coating or coating two or more layers of leaf materials.

5. The moving platform device for a lens driving device as claimed in claim 1, wherein an outer cladding is provided around said leaf spring.

6. The apparatus of claim 1, wherein the first fixing portion, the second fixing portion or the first positioning mechanism of the leaf spring is fixed to the fixing frame or the movable bracket by means of but not limited to adhesive bonding, screw fastening, hot riveting, welding, mortise and tenon joint, male and female engagement or cross-fitting.

7. The moving platform device for a lens driving device as claimed in claim 1, wherein an imaging lens is loaded in the moving mount.

8. The moving platform device for a lens driving device as claimed in claim 7, wherein an auto-focusing mechanism is mounted on the moving frame, and the auto-focusing mechanism can drive the imaging lens to move back and forth along the optical axis.

9. A lens driving device is characterized by comprising an automatic focusing mechanism, an optical image stabilizing mechanism and at least 2 sheet springs;

the automatic focusing mechanism comprises a lens support, a magnet support, at least two elastic sheets, at least one AF coil fixed on the lens support, and at least one magnet fixed on the magnet support, wherein the AF coil and the magnet are operatively associated with each other to push the lens support to move back and forth along the direction of an optical axis;

wherein the optical image stabilizing mechanism comprises a base and a plurality of OIS coils, the OIS coils are fixed on the base, and the plurality of OIS coils of the optical image stabilizing mechanism and the magnet of the automatic focusing mechanism are mutually associated in an operating way so as to push the automatic focusing mechanism to move integrally along a direction vertical to the optical axis;

10. The lens driving device according to claim 9, wherein at least one of the at least two resilient pieces of the auto-focusing mechanism has one end fixed to an upper portion of the lens holder and the other end fixed to an upper portion of the magnet holder; one end of at least one of the elastic sheets is fixed at the lower part of the lens support, and the other end of the elastic sheet is fixed at the lower part of the magnet support.

11. A lens driving device as claimed in claim 9, wherein the base of the optical image stabilizing mechanism is wrapped with electrode pins.

12. A lens driving apparatus as claimed in claim 9, wherein the AF coil is electrically connected to the leaf spring of the auto-focusing mechanism, and the leaf spring is electrically connected to the leaf spring and is connected to the electrode pin of the optical image stabilizing mechanism through the leaf spring to realize electrical connection with the outside.

13. A lens driving device as claimed in claim 9, wherein the optical image stabilizing mechanism further comprises a printed circuit board, the OIS coil is fixed on the printed circuit board, and the printed circuit board is fixed on the base of the optical image stabilizing mechanism.

14. A lens driving device according to claim 13, wherein electrode pins for connection with the outside are provided on the printed circuit board.

15. A lens driving apparatus according to claim 9, further comprising at least one hall element, or other position sensor, for detecting a position of the lens holder or a position of the magnet holder.