CN210572963U - Automatic focusing and anti-shaking driving device for micro optical lens - Google Patents

Abstract

The utility model relates to a driving device for automatic focusing and anti-shaking of a micro optical lens, which is provided with a support module and a moving part suitable for lens installation, wherein the support module is embedded with a FPC (flexible printed circuit) board with a sensor which is electrically connected with a control system of the micro optical lens; the moving part is assembled on the supporting module through a suspension system, so that the moving part moves along the optical axis of the lens; the driving mechanism further comprises a first pair of driving modules and a second pair of driving modules which are driven based on the principle that the SMA wire is heated to shrink, and the driving moving parts of the first pair of driving modules and the second pair of driving modules move in opposite directions along the optical axis of the lens; the single-side independent control driving of the first pair of driving modules and the second pair of driving modules realizes the angle control of the lens around the X axis and the Y axis, so as to achieve the inclination angle adjustment type optical anti-shake; the sensor feeds back a Z-direction position signal of the moving part and the inclination angle of the moving part, and focusing displacement and inclination angle feedback of the lens are realized. The product structure is light and handy and miniaturized, and control is simple and convenient, accurate.

Description

Automatic focusing and anti-shaking driving device for micro optical lens

Technical Field

The utility model belongs to the technical field of miniature optical lens technique and specifically relates to a miniature optical lens that is applied to portable electronic equipment such as cell-phone or panel computer technical field that focuses is related to.

Background

With the development and popularization of portable electronic devices such as mobile phones and tablet computers, the requirement for the camera function attached to the portable electronic devices is relatively increased. In order to focus and zoom the micro optical lens, a driving device is required to be disposed in a narrow space of the micro optical lens to drive the lens to move along the optical axis. The space is small, which limits the types of drive mechanisms that can be used. In the micro optical lens in the prior art, the driving is mainly realized by using a magnet and coil structure, but the structure is relatively complex, the volume is difficult to reduce, and the requirement of product miniaturization cannot be met.

Meanwhile, the micro automatic focusing micro optical lens is widely applied to products such as mobile phones, automobiles, unmanned planes, security monitoring, smart homes and the like. The common miniature automatic focusing miniature optical lens module is driven by a miniature voice coil motor to move up and down in the direction of an optical axis, and the voice coil motor is driven to move through a control chip during photographing, so that the automatic focusing function is realized. When the miniature optical lens is used for taking a picture or taking a picture, the lens cannot keep absolute stability due to human shake or other reasons, a certain offset is generated, and at the moment, the focusing and light incoming amount of the miniature optical lens are influenced, so that the quality of the image acquired by the miniature optical lens is influenced. Generally, such lens deflection occurs in a direction perpendicular to the optical axis, and the auto-focus voice coil motor can only drive the lens to move in the optical axis direction, so that the problem caused by such lens deflection cannot be solved. An optical anti-shake actuator is added on the basis of an automatic focusing voice coil motor to drive the lens to move in two directions vertical to the optical axis, so that the deflection of the lens can be compensated, and the micro optical lens is helped to acquire better image quality, and the micro optical lens motor is called as a micro optical anti-shake micro optical lens motor.

The real sense of the micro optical anti-shake micro optical lens motor is a closed-loop control system, the gyroscope detects the shake parameters of the lens and feeds the shake parameters back to the control chip of the micro optical lens module, and the control chip calculates the corrected angle or displacement according to the position information provided by the lens sensor and sends an instruction to drive the anti-shake actuator to reach the specified position, so that the displacement deflection of the lens caused by shake is corrected, and the photographing or the shooting can obtain better image quality.

In the prior art, the same method can be adopted in two directions perpendicular to the optical axis as driving the lens to move in the optical axis direction, that is, the method can be realized by adopting a miniature voice coil motor. The common miniature voice coil motor generates Lorentz magnetic force in a magnetic field by an electrified coil to drive the lens to move; however, to realize optical anti-shake, the lens needs to be driven in at least two directions, which means that a plurality of coils need to be arranged, and thus, the miniaturization of the whole structure is challenging. For this reason, the micro-actuator using the voice coil motor principle for optical anti-shake generally integrates a plurality of coils on one circuit board, which is called as FP coil, thereby solving the size problem of the optical anti-shake actuator. However, the micro vcm optical anti-shake actuator and the autofocus micro vcm are separate, and the lens is usually mounted in the autofocus micro vcm, and the lens is moved in a direction perpendicular to the optical axis, that is, the lens moves along with the autofocus micro vcm. Therefore, the assembly process of the micro optical anti-shake micro optical lens module is more difficult, the structural reliability of the whole micro motor is reduced, the requirement of product miniaturization is difficult to meet, and meanwhile, the Z direction of the micro voice coil motor is lack of displacement feedback, so that the quality of photographing or shooting is influenced.

Disclosure of Invention

The utility model aims to provide a driving device for automatic focusing and anti-shaking of a micro optical lens, which meets the miniaturization requirement of products, obtains better focusing performance for driving the lens to move along an optical axis and also realizes anti-shaking; and the real-time position signal feedback is carried out in the Z direction of automatic focusing, so that the quality of photographing or shooting is improved.

In order to achieve the above purpose, the utility model adopts the following technical scheme:

the driving device for the automatic focusing and the anti-shaking of the micro optical lens is provided with a supporting module and a moving part suitable for lens installation and assembly, wherein the supporting module is formed by overlapping a bottom plate and an upper seat, an FPC (flexible printed circuit) board is embedded between the bottom plate and the upper seat, a sensor is arranged on the FPC board, and the sensor is electrically connected with a control system of the micro optical lens; the moving part is assembled on the support module through a suspension system, and the suspension system guides the moving part to move along the optical axis of the lens; the first pair of driving modules are symmetrically arranged on two opposite sides of the moving component, and the second pair of driving modules are symmetrically arranged on the remaining two opposite sides of the moving component; the first pair of driving modules and the second pair of driving modules are driven based on the principle that the SMA wire is heated to contract, the first pair of driving modules are provided with first driving arms for pushing the moving part to move along the optical axis of the lens, the second pair of driving modules are provided with second driving arms for pushing the moving part to move along the optical axis of the lens, and the driving moving parts of the first pair of driving modules and the second pair of driving modules are opposite in moving direction along the optical axis of the lens; the single-side independent control driving of the first pair of driving modules and the second pair of driving modules realizes the angle control of the lens around the X axis and/or the Y axis, and realizes the inclination angle adjustment type optical anti-shake; the sensor feeds back a Z-direction position signal of the moving part and the inclination angle of the moving part, and focusing displacement and inclination angle feedback of the lens are achieved.

The single body of the first pair of driving modules comprises two first driving arms, a first SMA wire and two first conductive supports, wherein the first conductive supports are fixed on the support module and electrically connected with the control system of the micro optical lens, the first conductive supports are provided with first elastic arms capable of opening and closing, the two first driving arms and the first SMA wire form a movable triangular relation, two ends of the first SMA wire are respectively connected with the first elastic arms on the two first conductive supports, one end of each first driving arm is connected with the first elastic arm corresponding to the first conductive support, and the other end of each first driving arm is hinged with the moving part; the single body of the second pair of driving modules comprises two second driving arms, a second SMA wire and two second conductive supports, the second conductive supports are fixed on the supporting module and electrically connected with the control system of the micro optical lens, the second conductive supports are provided with second elastic arms capable of opening and closing, the two second driving arms and the second SMA wire form a movable triangular relation, two ends of the second SMA wire are respectively connected with the second elastic arms on the two second conductive supports, one end of each second driving arm is connected with the second elastic arm corresponding to the second conductive support, and the other end of each second driving arm is hinged with the moving part.

The suspension system further comprises an upper spring and a lower spring, wherein the upper spring and the lower spring are respectively connected between the upper end and the lower end of the moving part and the support module; the upper spring comprises an upper inner ring and a first flexible part led out from the periphery of the upper inner ring, the upper inner ring is fixedly connected with the upper end of the moving part, and the tail end of the first flexible part is fixedly connected with the support module; the lower spring comprises a lower inner ring and a second flexible part led out from the periphery of the lower inner ring, the lower inner ring is fixedly connected with the lower end of the moving part, and the tail end of the second flexible part is fixedly connected with the support module.

The scheme is further that the upper seat is provided with a vacancy avoiding position for accommodating and assembling the sensor, the sensor is arranged on the peripheral side of the moving part, the moving part is provided with an induction part, and the induction part and the sensor are matched for closed-loop control; the upper side of the upper seat, which is far away from the bottom plate, is provided with an upward-protruding column, and the column is matched with a suspension system and is installed with a first pair of driving modules and a second pair of driving modules; and the hinge parts are respectively hinged with a first driving arm of the first pair of driving modules and a second driving arm of the second pair of driving modules.

In the above scheme, the two first drive arms and the first SMA wire form an isosceles triangle relationship, the two second drive arms and the second SMA wire also form an isosceles triangle relationship, the first SMA wire and the second SMA wire are the bottom side of the isosceles triangle, and the first SMA wire and the second SMA wire are arranged in a vertically staggered manner in the axial direction of the relative motion component.

In the above scheme, the two first driving arms are respectively integrally formed with the two first conductive supports; the two second driving arms are respectively and integrally formed with the two second conductive supports, and the first elastic arm and the second elastic arm are designed to be inverted relatively.

According to the scheme, the supporting module is further covered with an outer cover, the outer cover covers the moving part, the first pair of driving modules and the second pair of driving modules, and the FPC circuit board is provided with ports or welding pads electrically connected with other parts.

The utility model discloses utilize SMA (Shape Memory Alloys) line to be heated the characteristics of shrink for the drive arrangement of the miniature optical lens module of preparation cell-phone or panel computer can drive the camera lens up-and-down motion, realizes the auto focus function of camera lens, utilizes the motion through the drive camera lens different sides, can adjust the camera lens around the inclination of X axle and Y axle, realizes the function of OIS (optics anti-shake) from this through the mode at regulation camera lens inclination, promotes miniature optical lens's performance. The SMA wire body is small, the driving structure is effectively simplified, the requirement of product miniaturization is met, the product structure is light and compact, the manufacturing cost is reduced, and meanwhile, the control is simple, convenient and accurate, and the SMA wire body is suitable for popularization and utilization. The automatic focusing device is provided with the sensor, the sensor feeds back a Z-direction position signal of automatic focusing and the inclination angle of the moving part, the focusing displacement and the inclination angle feedback of the lens are realized, the focusing positioning is more accurate, and the photographing or the shooting can obtain better image quality.

Description of the drawings:

FIG. 1 is a schematic structural diagram of a preferred embodiment of the present invention;

FIG. 2 is a schematic structural diagram of a first pair of driving modules of the embodiment shown in FIG. 1;

FIG. 3 is a schematic structural diagram of a second pair of driving modules according to the embodiment of FIG. 1;

FIG. 4 is a schematic diagram of the moving parts of the embodiment of FIG. 1;

FIG. 5 is a schematic diagram of the support module of the embodiment of FIG. 1;

FIG. 6 is a schematic diagram of the upper spring structure of the embodiment of FIG. 1;

fig. 7 is a schematic view of the lower spring structure of the embodiment of fig. 1.

The specific implementation mode is as follows:

the conception, the specific structure and the technical effects of the present invention will be further described with reference to the accompanying drawings, so as to fully understand the objects, the features and the effects of the present invention.

It should be noted that in the description of the present invention, the terms of direction or positional relationship indicated by the terms "upper", "lower", "left", "right", "vertical", "horizontal", "inner", "outer", etc. are based on the directions or positional relationships shown in the drawings, which are merely for convenience of description, and do not indicate or imply that the device or element must have a specific orientation, be constructed and operated in a specific orientation, and thus, should not be construed as limiting the present invention. Furthermore, the terms "first," "second," "third," and "fourth" are used for descriptive purposes only and are not to be construed as indicating or implying relative importance.

Referring to fig. 1-7, it is the schematic diagram of the preferred embodiment of the present invention, the present invention relates to a driving device for automatic focusing and anti-shake of a micro optical lens, which has a supportingmodule 1 and a movingpart 2 suitable for lens installation and assembly, and certainly further includes an inherent control system of the micro optical lens device and a corresponding outer cover (not shown in the figure), and the outer cover covers themoving part 2, a first pair ofdriving modules 4 and a second pair ofdriving modules 5. The supportingmodule 1 is adapted to be installed on a portable electronic device such as a mobile phone or a tablet personal computer, the supportingmodule 1 is formed by overlapping abottom plate 11 and anupper seat 12, an FPC (flexible printed circuit) 6 is embedded between thebottom plate 11 and theupper seat 12, a port or a welding disc electrically connected with other components is arranged on the FPC 6, asensor 7 is assembled on the FPC 6, and thesensor 7 is electrically connected with a control system of the micro optical lens. The movingpart 2 is assembled on thesupport module 1 through asuspension system 3, thesuspension system 3 guides themoving part 2 to move along the optical axis of the lens, and an assembly hole is formed in the middle of the movingpart 2 to meet the requirement of lens element assembly, so that themoving part 2 and the lens element are connected to move together. The device also comprises a first pair ofdriving modules 4 and a second pair ofdriving modules 5, wherein the first pair ofdriving modules 4 are symmetrically arranged on two opposite sides of the movingcomponent 2, and the second pair ofdriving modules 5 are symmetrically arranged on the remaining two opposite sides of the movingcomponent 2; the first pair ofdriving modules 4 and the second pair ofdriving modules 5 are driven based on the principle that the SMA wire is heated to contract, the first pair ofdriving modules 4 is provided with afirst driving arm 41 for pushing the movingpart 2 to move along the optical axis of the lens, the second pair ofdriving modules 5 is provided with asecond driving arm 51 for pushing the movingpart 2 to move along the optical axis of the lens, and the driving movingparts 2 of the first pair ofdriving modules 4 and the second pair ofdriving modules 5 move along the optical axis of the lens in opposite directions. Therefore, the SMA wires are heated and contracted to drive the corresponding driving arms to push themoving part 2 to move along the optical axis of the lens and overcome the reverse force of thesuspension system 3, the lens can be driven to move up and down, the automatic focusing function of the lens is realized, the inclination angles of the lens around the X axis and the Y axis can be adjusted by driving the movement of different sides of the lens, and the OIS (optical anti-shake) function is realized by adjusting the inclination angles of the lens. Thesuspension system 3 has corresponding resetting capability in work and is matched with the first pair ofdriving modules 4 and the second pair ofdriving modules 5 and thesensor 7 to feed back a Z-direction position signal of the movingpart 2, so that focusing displacement feedback of the lens is realized. The control system of the micro optical lens pulls the movingpart 2 to move based on the change of the length of the SMA wire of the first pair ofdriving modules 4 or the second pair ofdriving modules 5, so as to realize the focusing control of the lens.

Referring to fig. 1, 2 and 3, in the present embodiment, the single body of the first pair ofdriving modules 4 includes twofirst driving arms 41, afirst SMA wire 42 and two firstconductive supports 43, and the firstconductive supports 43 are fixed on the supportingmodule 1 and electrically connected to the control system of the micro optical lens. The firstconductive support 43 is provided with an openable firstelastic arm 431, the two first drivingarms 41 and thefirst SMA wire 42 form a movable triangular relationship, two ends of thefirst SMA wire 42 are respectively connected with the firstelastic arms 431 on the two firstconductive supports 43, one end of eachfirst driving arm 41 is connected with the firstelastic arm 431 corresponding to the firstconductive support 43, and the other end of eachfirst driving arm 41 is hinged with themoving part 2. The single body of the second pair ofdriving modules 5 includes two second drivingarms 51, asecond SMA wire 52 and two secondconductive supports 53, the secondconductive supports 53 are fixed on thesupport module 1 and electrically connected to the control system of the micro optical lens, the secondconductive supports 53 are provided with secondelastic arms 531 capable of opening and closing, the two second drivingarms 51 and thesecond SMA wire 52 form a movable triangular relationship, two ends of thesecond SMA wire 52 are respectively connected to the secondelastic arms 531 on the two secondconductive supports 53, one end of thesecond driving arm 51 is connected to the secondelastic arm 531 corresponding to the secondconductive support 53, and the other end of thesecond driving arm 51 is hinged to themoving part 2. The SMA wire (such as a nickel-titanium memory alloy wire) is in a martensite structure at normal temperature, and when the temperature is increased, the SMA wire can generate phase change, the martensite is converted into austenite, the length is shortened, and the resistance is reduced; when the temperature is lowered, the SMA wire undergoes a phase transition from austenite to martensite, the length thereof is increased, and the electric resistance thereof is increased. During the phase transformation, the temperature and strain of the SMA wire are not very linear, but its resistance is linear with strain over a certain temperature range. Therefore, the length of the SMA wire can be accurately controlled by controlling the resistance of the SMA wire, and the position and the moving distance of the driving device are calculated according to the resistance of the SMA wire. Therefore, the control system is used for electrifying and heating thefirst SMA wire 42 and/or thesecond SMA wire 52, the SMA wires can contract, the corresponding triangular relation is changed, the correspondingfirst driving arm 41 and/or thesecond driving arm 51 push themoving part 2 to move along the optical axis of the lens, the focusing and zooming of the micro optical lens are realized, and themoving part 2 can be stably and accurately driven to carry out focusing movement with the lens by utilizing the relative stability of the triangle. In this embodiment, the first pair ofdriving modules 4 are symmetrically disposed on two opposite sides of the movingcomponent 2, the second pair ofdriving modules 5 are symmetrically disposed on the two remaining opposite sides of the movingcomponent 2, and the driving movingcomponents 2 of the first pair ofdriving modules 4 and the second pair ofdriving modules 5 move in opposite directions along the optical axis of the lens, so that when focusing is realized, different driving modules can be powered on by a control system of the micro optical lens, different side movements of the movingcomponent 2 occur, and thus, the tilt angles of the lens around the X axis and the Y axis can be adjusted, so that the OIS (optical anti-shake) function is realized by adjusting the tilt angle of the lens, and the usability of the micro optical lens is improved.

Referring to fig. 1, 2 and 3, in this embodiment, the two first drivingarms 41 and thefirst SMA wire 42 form an isosceles triangle relationship, and the twosecond driving arms 51 and thesecond SMA wire 52 also form an isosceles triangle relationship, where thefirst SMA wire 42 and thesecond SMA wire 52 are the bottom side of the isosceles triangle, and thefirst SMA wire 42 and thesecond SMA wire 52 are arranged in a vertically staggered manner and are horizontal with respect to the axial direction of the movingpart 2, so that the structure is more stable in operation and more accurate in control. Further, the two first drivingarms 41 are respectively integrally formed with the two firstconductive supports 43, and the first drivingarms 41 are integrally extended from the firstelastic arms 431 of the firstconductive supports 43; the two second drivingarms 51 are respectively and integrally formed with the two secondconductive supports 53, the second drivingarms 51 are integrally extended from the secondelastic arms 531 of the secondconductive supports 53, the firstelastic arms 431 and the secondelastic arms 531 are designed in an inverted manner, the structure is optimized, the manufacturing and the assembly are convenient, and the firstconductive supports 43 and the secondconductive supports 53 are connected with a control system circuit of the micro optical lens through welding.

As shown in fig. 1 to 7, in this embodiment, theupper seat 12 leaves a space for accommodating and assembling thesensor 7, thesensors 7 are arranged on the periphery of themoving part 2, the number of the sensors may be one or more, the movingpart 2 is provided with aninduction portion 22, and theinduction portion 22 and thesensor 7 are matched for closed-loop control. Thesensor 7 is preferably a hall sensor, thesensor 7 is surface-mounted and welded on a preset bonding pad of theFPC board 6, thesensor 7 feeds back a signal in cooperation with asensing part 22 on the movingpart 2, and a magnet is arranged on thesensing part 22. The movement of the lens is controlled in a closed loop mode by utilizing a feedback signal of thesensor 7, so that the movement deviation of themoving part 2 can be corrected, and accurate control can be obtained. The upper side of theupper seat 12, which is far away from thebottom plate 11, is provided with astand column 121 which protrudes upwards, and thestand column 121 is adapted to thesuspension system 3 and is installed with the first pair ofdriving modules 4 and the second pair ofdriving modules 5; the movingmember 2 is provided with ahinge portion 21 on the peripheral side thereof, and thehinge portion 21 is respectively hinged to thefirst driving arm 41 of the first pair ofdriving modules 4 and thesecond driving arm 51 of the second pair ofdriving modules 5 to form a driving kinematic pair. Thesuspension system 3 comprises anupper spring 31 and alower spring 32, and theupper spring 31 and thelower spring 32 are respectively connected between the upper end and the lower end of the movingpart 2 and thesupport module 1. Theupper spring 31 comprises an upperinner ring 311 and a firstflexible part 312 led out from the periphery of the upperinner ring 311, the upperinner ring 311 is fixedly connected with the upper end of the movingpart 2, and the tail end of the firstflexible part 312 is fixedly connected with thesupport module 1; thelower spring 32 comprises a lowerinner ring 321 and a secondflexible part 322 led out from the periphery of the lowerinner ring 321, the lowerinner ring 321 is fixedly connected with the lower end of the movingpart 2, and the tail end of the secondflexible part 322 is fixedly connected with thesupport module 1. Thesuspension system 3 has simple structure, convenient manufacture and assembly and small size, and effectively supports the movingpart 2 to be suspended on thesupport module 1 and meets the requirement that the movingpart 2 moves along the optical axis of the lens; and the automatic focusing work of the lens is realized by matching the first pair of drivingmodules 4 and/or the second pair of drivingmodules 5.

The utility model discloses utilize SMA (Shape Memory Alloys) line to be heated the characteristics of shrink for the drive arrangement of the miniature optical lens module of preparation cell-phone or panel computer can drive the camera lens up-and-down motion, realizes the auto focus function of camera lens, utilizes the motion through the drive camera lens different sides, can adjust the camera lens around the inclination of X axle and Y axle, realizes the function of OIS (optics anti-shake) from this through the mode at regulation camera lens inclination, promotes miniature optical lens's performance. The SMA wire body is small, the driving structure is effectively simplified, the requirement of product miniaturization is met, the product structure is light and compact, the manufacturing cost is reduced, and meanwhile, the control is simple, convenient and accurate, and the SMA wire body is suitable for popularization and utilization. The sensor is arranged and feeds back a Z-direction position signal of automatic focusing, so that focusing displacement feedback of the lens is realized, focusing positioning is more accurate, and better image quality is obtained by photographing or shooting.

Although the preferred embodiments of the present invention have been described in connection with the accompanying drawings, the present invention should not be limited to the exact construction and operation as described and illustrated, and many equivalent modifications and variations of the above-described embodiments may be made by logical analysis, reasoning or limited experimentation by those skilled in the art without departing from the spirit and scope of the present invention, which should fall within the scope of the claims.

Claims (7)

1. The driving device for automatic focusing and anti-shaking of the miniature optical lens is characterized in that: the micro-optical lens driving device is provided with a supporting module (1) and a moving part (2) suitable for lens installation and assembly, wherein the supporting module (1) is formed by overlapping a bottom plate (11) and an upper seat (12), an FPC (flexible printed circuit) board (6) is embedded between the bottom plate (11) and the upper seat (12), a sensor (7) is arranged on the FPC (6), and the sensor (7) is electrically connected with a control system of the micro-optical lens; the moving part (2) is assembled on the support module (1) through a suspension system (3), and the suspension system (3) guides the moving part (2) to move along the optical axis of the lens; the device also comprises a first pair of driving modules (4) and a second pair of driving modules (5), wherein the first pair of driving modules (4) are symmetrically arranged on two opposite sides of the moving component (2), and the second pair of driving modules (5) are symmetrically arranged on the remaining two opposite sides of the moving component (2); the first pair of driving modules (4) and the second pair of driving modules (5) are driven based on the principle that the SMA wire is heated to contract, the first pair of driving modules (4) are provided with first driving arms (41) to push the moving part (2) to move along the optical axis of the lens, the second pair of driving modules (5) are provided with second driving arms (51) to push the moving part (2) to move along the optical axis of the lens, and the driving moving parts (2) of the first pair of driving modules (4) and the second pair of driving modules (5) move in opposite directions along the optical axis of the lens; the single-side independent control driving of the first pair of driving modules (4) and the second pair of driving modules (5) realizes the angle control of the lens around the X axis and/or the Y axis, and realizes the inclination angle adjustment type optical anti-shake; the sensor (7) feeds back a Z-direction position signal of the moving part (2) and the inclination angle of the moving part (2), and focusing displacement and inclination angle feedback of the lens are achieved.

2. The driving apparatus for auto-focusing and anti-shaking of a micro optical lens according to claim 1, wherein: the single body in the first pair of driving modules (4) comprises two first driving arms (41), a first SMA wire (42) and two first conductive supports (43), the first conductive supports (43) are fixed on the support module (1) and electrically connected with a control system of the micro optical lens, the first conductive supports (43) are provided with first elastic arms (431) capable of opening and closing, the two first driving arms (41) and the first SMA wire (42) form a movable triangular relation, two ends of the first SMA wire (42) are respectively connected with the first elastic arms (431) on the two first conductive supports (43), one end of each first driving arm (41) is connected with the corresponding first elastic arm (431) of the first conductive support (43), and the other end of each first driving arm (41) is hinged with the moving part (2); the single body of the second pair of driving modules (5) comprises two second driving arms (51), a second SMA wire (52) and two second conductive supports (53), the second conductive supports (53) are fixed on the support module (1) and electrically connected with a control system of the micro optical lens, the second conductive supports (53) are provided with second elastic arms (531) capable of opening and closing, the two second driving arms (51) and the second SMA wire (52) form a movable triangular relation, two ends of the second SMA wire (52) are respectively connected with the second elastic arms (531) on the two second conductive supports (53), one end of each second driving arm (51) is connected with the second elastic arm (531) corresponding to the second conductive support (53), and the other end of each second driving arm (51) is hinged with the moving part (2).

3. The driving apparatus for auto-focusing and anti-shaking of a micro optical lens according to claim 1, wherein: the suspension system (3) comprises an upper spring (31) and a lower spring (32), and the upper spring (31) and the lower spring (32) are respectively connected between the upper end and the lower end of the moving part (2) and the support module (1); the upper spring (31) comprises an upper inner ring (311) and a first flexible part (312) led out from the periphery of the upper inner ring (311), the upper inner ring (311) is fixedly connected with the upper end of the moving component (2), and the tail end of the first flexible part (312) is fixedly connected with the support module (1); the lower spring (32) comprises a lower inner ring (321) and a second flexible part (322) led out from the periphery of the lower inner ring (321), the lower inner ring (321) is fixedly connected with the lower end of the moving component (2), and the tail end of the second flexible part (322) is fixedly connected with the support module (1).

4. The driving apparatus for auto-focusing and anti-shaking of a micro optical lens according to claim 1, wherein: the upper seat (12) is provided with a space avoiding position for accommodating and assembling the sensors (7), the sensors (7) are arranged on the periphery of the moving part (2), the number of the sensors (7) is one or more, the moving part (2) is provided with an induction part (22), and the induction part (22) is matched with the sensors (7) for closed-loop control; the upper side of the upper seat (12) departing from the bottom plate (11) is provided with a stand column (121) protruding upwards, and the stand column (121) is matched with the suspension system (3) and is installed with the first pair of driving modules (4) and the second pair of driving modules (5); the side of the moving component (2) is provided with a hinge part (21), and the hinge part (21) is respectively hinged with a first driving arm (41) of the first pair of driving modules (4) and a second driving arm (51) of the second pair of driving modules (5).

5. The driving apparatus for auto-focusing and anti-shaking of micro optical lens according to claim 2, wherein: the two first driving arms (41) and the first SMA wire (42) form an isosceles triangle relationship, the two second driving arms (51) and the second SMA wire (52) also form the isosceles triangle relationship, the first SMA wire (42) and the second SMA wire (52) are the bottom sides of the isosceles triangle, and the first SMA wire (42) and the second SMA wire (52) are arranged in a vertically staggered mode relative to the axial direction of the moving part (2).

6. The driving apparatus for automatically focusing and anti-shaking of micro-optical lens according to claim 2 or 5, wherein: the two first driving arms (41) are respectively integrally formed with the two first conductive supports (43); the two second driving arms (51) are respectively and integrally formed with the two second conductive supports (53), and the first elastic arm (431) and the second elastic arm (531) are designed to be inverted relatively.

7. The driving apparatus for auto-focusing and anti-shaking of a micro optical lens according to claim 1, wherein: the support module (1) is further covered with an outer cover, the outer cover covers the moving part (2), the first pair of driving modules (4) and the second pair of driving modules (5), and ports or welding pads electrically connected with other parts are arranged on the FPC circuit board (6).

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