CN113446485A

CN113446485A - Miniature anti-shake cloud platform

Info

Publication number: CN113446485A
Application number: CN202010215573.1A
Authority: CN
Inventors: 麦练智
Original assignee: Vista Innotech Ltd
Current assignee: Vista Innotech Ltd
Priority date: 2020-03-24
Filing date: 2020-03-24
Publication date: 2021-09-28
Anticipated expiration: 2040-03-24
Also published as: CN113446485B

Abstract

The invention relates to the field of anti-shake cloud platforms, in particular to a miniature anti-shake cloud platform, which comprises an elastic support, a camera module, at least one positioning seat, at least one group of springs, at least one magnetic assembly and at least one coil, wherein the elastic support is arranged on the elastic support; the elastic support comprises a fixed part, a movable part and an elastic part, and two ends of the elastic part are respectively connected with the fixed part and the movable part so that the movable part can move relative to the fixed part; the camera module and the coil are arranged on the movable part; the fixing part is fixedly connected with the positioning seat, the magnetic assembly comprises two magnets which are fixedly arranged on the positioning seat and arranged in parallel, the coil is arranged opposite to the magnets, and the elastic part is positioned between the two magnets; the both ends of spring are connected respectively in positioning seat and movable part, realize that camera module is rotatory around the rotation center by parts such as movable part, elastomeric element and spring, and elastomeric element place plane is close rotation center more, has effectively reduced the consumption and has improved the anti-shake performance.

Description

Miniature anti-shake cloud platform

Technical Field

The invention relates to the field of anti-shake cloud platforms, in particular to a miniature anti-shake cloud platform.

Background

In recent years, small mobile devices with a shooting function have become popular, and the application range thereof has been expanding, including sports cameras, law enforcement recorders, and automobile data recorders. The device comprises at least one Compact camera module (Compact camera module). Therefore, the market of the module is huge, and the growth is steadily promoted.

When taking pictures and films, the pictures and films taken by the device are likely to appear blurred or swayed due to external vibration, which affects the quality of the pictures and films. This problem is exacerbated when the vibrations are relatively intense, or in low light conditions.

In order to solve the above problems, many different anti-shake technologies have appeared on the market. The current mainstream technology is to read the vibration sensor (such as gyroscope and acceleration sensor), calculate the vibration waveform and the required compensation angle, and compensate the image blur and shake caused by vibration by electronic, optical, or mechanical methods, thereby achieving the effect of improving the image quality.

The related art can be classified into three types according to a vibration compensation method, including an Electronic Image Stabilizer (EIS), an Optical Image Stabilizer (OIS), and an anti-shake tripod head (GS). EIS, OIS and anti-shake cradle head have different advantages and disadvantages.

EIS achieves anti-shake effect by electronic means. During shooting, the EIS adjusts the position of each frame of image according to the calculated vibration waveform to counteract the image shake caused by vibration. Since the EIS does not require an additional actuator, the main advantage of the EIS is low cost, without additional weight and volume.

The OIS is an Optical and mechanical method, in which an actuator is used to move an Optical component (which may be one, one or all lenses in a lens), so as to cause a relative motion between the Optical component and an Image sensor, and change the positions of an Optical Path (Optical Path) and an Image Circle (Image Circle), thereby canceling Image shake caused by vibration. Since the OIS is continuously performing the optical anti-shake compensation during each frame of image, it can counteract the shake during each frame of image exposure, and achieve better image quality than the EIS.

The mainstream anti-shake cradle head (GS) drives the whole camera module comprising the lens and the image sensor to move in a direction opposite to the vibration direction but with an amplitude close to the vibration direction by a mechanical method (refer to patents: CN103513492A, CN104903790A, EP3086451A1 and US20090257741A1), so as to counteract the shake caused by the vibration. In the anti-shake process, because there is no relative motion between the optical component and the image sensor, the image quality and the anti-shake effect will not decrease at the edge of the image, and there is no need to maintain the partial optical resolution of the lens and the partial resolution of the image sensor. Therefore, the main stream GS has better anti-shake effect and image quality than EIS and OIS.

The anti-shake principle of Micro Gimbal Stabilzer (MGS) is similar to that of the mainstream anti-shake cradle head (refer to patent: CN107340667A), and the anti-shake effect is achieved by driving the whole camera module including the lens and the image sensor. The MGS adopts a special spring plate and flexible circuit board design (refer to patent: CN107315302A), which provides the required rotational freedom and achieves the purpose of saving space.

The main drawback of EIS is that it cannot compensate for image jitter in each frame because EIS compensates for image jitter due to vibrations by adjusting the position of each frame image. Therefore, the image shot after the EIS is opened is easy to be blurred due to image shaking.

Another EIS disadvantage is that the resolution of the image sensor is sacrificed. When the EIS is turned on, the image sensor or the image processor needs to cut out an appropriate image according to the calculated vibration waveform as a final image. During cropping, the resolution may decrease and the final image may have a lower resolution than the maximum resolution of the image sensor. Therefore, EIS sacrifices the maximum resolution of the image sensor and reduces the image quality.

The main disadvantage of OIS versus GS is the sacrifice of partial optical resolution of the lens. During OIS, the position of the image circle on the image sensor changes constantly. To avoid the image circle exceeding the image sensor during OIS, the image circle must be enlarged for OIS, but this wastes the resolution that the lens should have. On the other hand, in the OIS process, when the position of the imaging circle is more off-set, the edge of the imaging circle is closer to the image sensor. Since most lenses have more severe blur and distortion at the edge than at the center, the image resolution and anti-shake effect of the conventional OIS are inferior to GS, which is more obvious in the wide-angle camera module.

Although GS has significant advantages in terms of image quality and anti-shake effects over OIS and EIS, GS requires actuators that drive the entire camera module. The cost of the GS actuator, the device, or the run time of the mobile device battery is reduced because the camera module is much heavier and heavier than the lens.

On the other hand, the mainstream GS technology (see patents: CN103513492A, CN104903790A, EP3086451a1, and US20090257741a1) employs ball bearings or other contact points with friction as mechanical support structures between fixed and movable parts. Due to the non-linear relationship between the friction of the support structure and the speed of the movable part, the support structure increases the non-linear friction, which may affect the anti-shake effect. Especially, when the vibration is very small and the frequency is high, the influence is more obvious, and the anti-shake effect may be poor. In addition, most GS technologies adopt closed-loop control, and the control circuit of GS needs an additional power consumption stabilizing anti-shake system. When the vibration amplitude and frequency are too high, the output voltage or current required by the control circuit may exceed the limit of the control circuit, resulting in overheating of the circuit or poor anti-shake effect.

Since the MGS does not employ a contact point with friction, the disadvantages caused by said friction do not occur. However, since the flexible printed circuit board in the conventional MGS is elastically deformed away from the rotation center, the elastically deformed portion needs to move in multi-axis displacement and rotational freedom during the anti-shake motion (refer to patent Nos. CN107340667A and CN 107315302A). In order to provide the degree of freedom, the flexible deformation portion of the flexible printed circuit board must be narrow and thick, which increases the cost and manufacturing time of the flexible printed circuit board. In addition, the distance between the elastic deformation part and the rotation center is relatively far, so that the MGS needs large power consumption to push the flexible circuit board in the anti-shake process. This also results in a larger size of the MGS, and at the same time, increases the distance between the lens and the rotation center, increases the Inertia Moment (Moment of Inertia) of the movable structure of the MGS, and is not favorable for MGS power consumption and anti-shake performance. Finally, most of the MGS modules adopt an MGS and camera module integrated design, but the design reduces the flexibility of matching the MGS and increases the cost. For example: when the MGS needs to be equipped with different lenses or image sensors, the design of the MGS is likely to need a large modification, resulting in an increase in cost.

Disclosure of Invention

In order to solve the above problems, an object of the present invention is to provide a miniature anti-shake tripod head, so as to solve the problems of high power consumption and poor anti-shake performance of the existing miniature anti-shake tripod head.

Based on the above, the invention provides a miniature anti-shake pan-tilt, which comprises an elastic support, a camera module, at least one positioning seat, at least one group of springs, at least one magnetic assembly and at least one coil, wherein the elastic support is arranged on the elastic support;

the elastic support comprises a fixed part, a movable part and an elastic part, and two ends of the elastic part are respectively connected with the fixed part and the movable part;

the camera module and the coil are arranged on the movable part;

the fixing part is fixedly connected with the positioning seat, the magnetic assembly comprises at least two magnets which are fixedly arranged on the positioning seat and arranged in parallel, the coil is arranged opposite to the magnets, and the elastic part is positioned between the two magnets of the magnetic assembly;

and two ends of the spring are respectively connected to the positioning seat and the movable part.

Preferably, the elastic parts are L-shaped, two elastic parts are arranged, and the movable part is positioned between the two elastic parts.

Preferably, the magnet is provided with an inclined surface inclined from a vertical surface, and the inclined surface is arranged opposite to the coil.

Preferably, the coil has two mutually parallel action sections, and the action sections are parallel to the image sensor of the camera module;

one of the magnets is arranged opposite to one of the action sections, and the other magnet is arranged opposite to the other action section.

Preferably, the lens of the camera module passes through the plane where the elastic component is located.

Preferably, the extending direction of the spring and the elastic member are obliquely arranged.

Preferably, the thickness of the elastic member in the extending direction thereof is less than 20% of the width thereof in the extending direction.

Preferably, a distance between a plane where the elastic component is located and a rotation center of the camera module is less than 30% of a height of the micro anti-shake holder in the optical axis direction of the camera module.

Preferably, a distance between a plane where the elastic component is located and an image sensor of the camera module is greater than 20% of a height of the micro anti-shake holder in the optical axis direction of the camera module.

Preferably, the lens and the image sensor of the camera module are relatively fixed, and the camera module is detachably connected to the movable part.

The invention discloses a miniature anti-shake pan-tilt head, which comprises an elastic support, a camera module, at least one positioning seat, at least one group of springs, at least one magnetic assembly and at least one coil, wherein the elastic support is arranged on the elastic support; the elastic support comprises a fixed part, a movable part and an elastic part, and two ends of the elastic part are respectively connected with the fixed part and the movable part so that the movable part can move relative to the fixed part; the camera module and the coil are arranged on the movable part; the fixing part is fixedly connected with the positioning seat, the magnetic assembly comprises two magnets which are fixedly arranged on the positioning seat and arranged in parallel, the coil is arranged opposite to the magnets, and the elastic part is positioned between the two magnets; the both ends of spring are connected respectively in positioning seat and movable part, realize that the camera module rotates around the rotation center of the spring oscillator system that comprises parts such as movable part, elastomeric element and spring, and elastomeric element place plane is close rotation center more, has effectively reduced the consumption and has improved the anti-shake performance.

Drawings

Fig. 1 is a schematic structural diagram of a housing of a miniature anti-shake pan-tilt according to an embodiment of the present invention;

fig. 2 is a schematic diagram of an arrangement structure of a positioning seat, a spring, a coil, an elastic support and a magnetic assembly of the miniature anti-shake pan-tilt according to the embodiment of the invention;

fig. 3 is a schematic view of an assembled state of a camera module and an elastic support of the miniature anti-shake pan-tilt according to an embodiment of the present invention;

fig. 4 is an exploded view of a camera module of the miniature anti-shake pan/tilt head according to an embodiment of the present invention;

FIG. 5 is a schematic cross-sectional view taken along line A-A of the micro anti-shake cradle head according to the embodiment of the present invention;

FIG. 6 is a schematic cross-sectional view at B-B of the miniature anti-shake pan/tilt head according to the embodiment of the present invention;

fig. 7 is a schematic side view of the positioning seat of the miniature anti-shake pan/tilt head according to the embodiment of the present invention;

fig. 8 is a schematic view of an assembly state of the positioning seat, the spring, the camera module, the elastic support and the magnetic assembly of the micro anti-shake pan/tilt head according to the embodiment of the invention;

fig. 9 is a schematic cross-sectional view at C-C of the elastic support of the miniature anti-shake pan/tilt head according to the embodiment of the present invention;

fig. 10 is a schematic structural diagram of the appearance of the miniature anti-shake pan-tilt according to the embodiment of the invention;

fig. 11 is an overall explosion schematic diagram of the miniature anti-shake pan-tilt according to the embodiment of the invention;

fig. 12 is a schematic top view of a micro anti-shake pan/tilt head according to an embodiment of the present invention;

fig. 13 is a schematic cross-sectional view of the micro anti-shake pan/tilt head at position D-D according to the embodiment of the present invention.

Wherein, 1, an elastic bracket; 11. a fixing member; 12. a movable part; 13. an elastic member; 14. an anti-shake driving chip; 15. a vibration sensor; 2. a camera module; 21. an image sensor; 22. a lens; 3. positioning seats; 4. a spring; 5. a magnetic component; 51. a magnet; 511. a bevel; 6. a coil; 61. an action section; 62. a coil holder; 7. a first housing; 8. a second housing.

Detailed Description

The following detailed description of embodiments of the present invention is provided in connection with the accompanying drawings and examples. The following examples are intended to illustrate the invention but are not intended to limit the scope of the invention.

With reference to fig. 1 to 13, a micro anti-shake cradle head according to the present invention is schematically shown, and includes an elastic support 1, a camera module 2, at least one positioning seat 3, at least one set of spring 4, at least one magnetic component 5, at least one coil seat 62, and at least one coil 6, and certainly, in order to protect the above components, the micro anti-shake cradle head further includes a first shell 7 and a second shell 8, where the first shell 7 and the second shell 8 form a hollow shell structure, and the elastic support 1, the camera module 2, the positioning seat 3, the spring 4, the magnetic component 5, the coil 6 seat, and the coil 6 are all disposed in the shell structure. The first shell 7, the second shell 8, the positioning seat 3 and the magnetic assembly 5 form a fixed structure outside the head, and the coil 6 seat are arranged on the movable structure.

As shown in fig. 3 and 4, the elastic bracket 1 includes a fixed part 11, a movable part 12, and an elastic part 13, both ends of the elastic part 13 are respectively connected to the fixed part 11 and the movable part 12, and the elastic part 13 itself has elasticity, which enables the movable part 12 to move relative to the fixed part 11; certainly, the elastic support 1 itself may also be a sensor circuit board of the camera module 2, that is, the fixed part 11, the movable part 12 and the elastic part 13 are provided with a flat cable or other circuits, and the sensor circuit board is composed of a flexible circuit board or a rigid-flexible composite circuit board, so as to realize the electrical connection between the camera module 2 on the movable structure and the other circuits of the stationary structure;

the camera module 2 and the coil 6 seat are both arranged on the movable part 12, so that the camera module 2 and the coil 6 can move relative to the fixed structure, and further, the coil 6 is arranged on the outer wall of the coil 6 seat;

the fixing part 11 is fixedly connected to the positioning seat 3, the positioning seat 3 is fixedly connected in the shell structure, the magnetic assembly 5 includes two magnets 51 fixedly arranged on the positioning seat 3 and arranged in parallel, as shown in fig. 5, the two magnets 51 are respectively fixed on the inner walls of the first shell 7 and the second shell 8, the magnetic fields of the two magnets 51 in the magnetic assembly 5 are opposite in direction, the coil 6 is arranged opposite to the magnets 51, the south pole or the north pole of the magnet 51 faces the coil 6, and the coil 6 is electrically connected with the sensor circuit board;

the spring 4 vibrator system is composed of a movable part 12, an elastic part 13, a spring 4 and the like, wherein the extending direction of the spring 4 and the elastic part 13 are obliquely arranged;

elastic component 13 is located between two magnetite 51, the both ends of spring 4 are connected respectively in positioning seat 3 and movable part 12, in this embodiment, the quantity of spring 4 is equipped with four, four springs 4 are in respectively on four nonparallel planes, spring 4's the nodical rotation center that is close to spring 4 oscillator system of extension, this rotation center almost can not appear the displacement at the in-process of this miniature anti-shake cloud platform motion, make the anti-shake effect of cloud platform improve, and elastic component 13 place plane is close rotation center more, the consumption has effectively been reduced.

Preferably, the Spring 4 vibrator system composed of the Spring 4 and the sensor circuit board has an extremely high displacement stiffness coefficient (Linear Spring Constant). When external displacement vibration occurs, the displacement hardly occurs in the rotating center in the spring 4 vibrator system, so that the anti-shaking effect of the miniature anti-shaking holder cannot be influenced, and the falling resistance of the miniature anti-shaking holder can be improved.

Referring to fig. 4, the camera module 2 includes a lens 22, a lens 22 holder and an image sensor 21, in this embodiment, the lens 22 holder and the image sensor 21 are fixed relatively, so that the image quality and the anti-shake effect will not be reduced at the edge of the image, and it is not necessary to sacrifice the partial optical resolution of the lens 22 and the partial resolution of the image sensor 21 due to the anti-shake effect. Anti-shake drive chip 14 and vibration sensor 15 locate on the fixed part 11 of elastic support 1, anti-shake drive chip 14 connects in coil 6 through foretell sensor circuit board, anti-shake drive chip 14 is through reading at least one vibration sensor 15 in order to calculate vibration signal, anti-shake drive chip 14 and then output control signal are with the electric current size and the electric current direction that change coil 6, coil 6 drive magnetite 51 displacement and then drive movable part 12 and move relative fixed part 11, reach the anti-shake effect. Similarly, the image sensor 21 is connected to a controller, an image processor, and other chips outside the micro anti-shake cradle head through the sensor circuit board to provide image information. Preferably, the camera module 2 is detachably connected to the movable part 12, which increases the flexibility of the matching MGS and reduces the cost. For example: when the MGS needs to be matched with different lenses 22 or image sensors 21, the design of the holder in the invention does not need to be greatly changed, and the development cost is reduced.

In addition, the lens 22 of the camera module 2 passes through the plane where the elastic component 13 is located, as shown in fig. 3 and 13, the lens 22 is disposed above the elastic component 13, and the image sensor 21 is disposed below the elastic component 13, so that the center of gravity of the camera module 2 is closer to the rotation center of the spring 4 vibrator system, the moment of inertia of the camera module 2 is reduced, and the anti-shake effect is further improved. The distance between the plane of the elastic component 13 and the image sensor 21 of the camera module 2 is greater than 20% of the height of the miniature anti-shake tripod head in the optical axis direction of the camera module 2, that is, the distance between the rotation center of the spring 4 vibrator system and the image sensor 21 is longer, and the distance between the rotation center of the spring 4 vibrator system and the lens 22 is shorter, so that the gravity center of the lens 22 can be closer to the rotation center.

Further, the fixing part 11 is fixedly connected to the positioning seat 3, the elastic part 13 is mainly made of a soft material, the elastic part 13 is located between the two magnets 51 of the magnetic assembly 5, and in the anti-shake process, the elastic part 13 elastically deforms and moves between the two magnets 51, but the elastic part 13 does not touch the two magnets 51.

As shown in fig. 3, 4 and 9, the elastic members 13 are L-shaped, two elastic members 13 are provided, the movable member 12 is located between the two elastic members 13, and the two elastic members 13 form a substantially rectangular structure. The elastic member 13 and the image sensor 21 are respectively located on two planes parallel to each other, and are disposed perpendicular to the optical axis of the lens 22. The distance between the plane of the elastic component 13 and the rotation center of the camera module 2 is less than 30% of the height of the miniature anti-shake holder in the optical axis direction of the camera module 2, so that the elastic component 13 can hardly move horizontally in the directions of the X axis and the Y axis in the anti-shake motion process. And the thickness of the elastic component 13 in the extending direction is less than 20% of the width of the elastic component 13 in the extending direction, namely the elastic component 13 is thinner, which is beneficial to the production of the sensor circuit board and can effectively reduce the production cost and the production period.

Preferably, the magnet 51 is provided with an inclined surface 511 arranged obliquely to the vertical surface, and the inclined surface 511 is arranged opposite to the coil 6, so that the inclined surface 511 can effectively utilize space, reduce the average distance between the magnet 51 and the coil 6, enhance the electromagnetic force applied to the magnet 51, and reduce the power consumption of the coil 6. The coil 6 has two action sections 61 parallel to each other, the action sections 61 are parallel to the image sensor 21 of the camera module 2, one of the magnets 51 is disposed opposite to one of the action sections 61, and the other magnet 51 is disposed opposite to the other action section 61.

By adjusting the direction and magnitude of the current in the coil 6, the coil can rotate around the rotation center in the Rx direction, thereby achieving an anti-shake effect. For example, when the camera module 2 needs to rotate in the Rx direction during the optical anti-shake process, the coil 6 is energized to generate a corresponding electromagnetic force and a moment in the Rx direction, so that the camera module 2 rotates in the Rx direction.

Furthermore, in order to achieve multi-axis anti-shake, a plurality of sets of coils 6 may be provided, and of course, a plurality of sets of coils 6 may also be provided, and as shown in fig. 11 and 13, the plurality of sets of coils 6 are respectively provided around the camera module 2. When the camera module 2 needs to rotate in the Rx direction during the optical anti-shake process, the two coils 6 parallel to each other are energized to generate corresponding electromagnetic force and torque in the Rx direction, thereby achieving the effect of rotating in the Rx direction. Similarly, by changing the current of the other two parallel coils 6, the moment in the Ry direction can be changed, and the effect of rotating in the Ry direction is achieved. Therefore, the miniature anti-shake tripod head can perform two-axis anti-shake compensation.

In particular, the shell structure has a rectangular cross section, with four magnetic assemblies 5 respectively located on four inner walls inside the first shell 7, so as to make more efficient use of the limited space inside the head.

The structure of the tripod head does not need balls or other contact points with friction force as a mechanical supporting structure between the fixed part and the movable part, thereby avoiding the nonlinear friction force in the anti-shaking process and achieving better anti-shaking effect. Especially, when the vibration is very small and the direction is changed frequently, the anti-shake effect of the structure of the invention is more obvious.

In other embodiments, the spring 4 may be electrically conductive or non-conductive; the camera module 2 can be in a fixed focus mode, an automatic focusing mode or a zooming mode; the vibration sensor 15 or the anti-shake driving chip 14 may not be in the miniature anti-shake pan-tilt structure in the present invention; a displacement or deflection sensor can be added in the invention to implement closed-loop anti-shake control; it is within the scope of the present invention to use other numbers of magnet 51 sets, coil 6 sets and housing designs.

The beneficial effects of the invention include:

1. the invention provides a miniature anti-shake holder and a camera module 2, which have simple and compact structure and convenient assembly, are beneficial to mass production and even automatic production;

2. the elastic support and the sensor circuit board are in a folding design, and the elastic part 13 is arranged between the upper magnet 51 and the lower magnet 51, so that the plane where the elastic part 13 is arranged and the lens 22 can be closer to the rotation center, the power consumption is effectively reduced, and the anti-shake performance is improved;

3. the elastic part 13 of the elastic bracket and the sensor circuit board is thinner, which is beneficial to reducing the production cost and the period;

4. the miniature anti-shake cradle head has the advantages of low cost, weight, volume, power consumption and the like;

5. in the anti-shake process, the image edge pixel of the micro anti-shake pan-tilt will not decrease, and the anti-shake sacrifice of the partial optical resolution of the lens 22 and the partial resolution of the image sensor 21 is not needed, so the anti-shake effect and the image pixel of the micro anti-shake pan-tilt have advantages over EIS and OIS, and the advantages are more prominent in the wide-angle camera module 2;

6. because the nonlinear friction force cannot occur in the anti-shake process, the micro anti-shake cradle head can achieve better anti-shake effect than GS, especially when the vibration is very fine and the direction is often changed;

7. the displacement stiffness coefficient (Linear Spring Constant) of the multi-axis rotational freedom Spring 4 vibrator system formed by elastic materials is extremely high. When external vibration or direction change of the tripod head occurs, displacement can not occur when the rotating center in the spring 4 vibrator system is close, so that the anti-shaking effect of the miniature anti-shaking tripod head can not be influenced, and the anti-falling performance of the miniature anti-shaking tripod head can also be improved.

In summary, the miniature anti-shake pan/tilt head of the present invention comprises an elastic support 1, a camera module 2, at least one positioning seat 3, at least one set of springs 4, at least one magnetic assembly 5, and at least one coil 6; the elastic bracket 1 comprises a fixed part 11, a movable part 12 and an elastic part 13, wherein two ends of the elastic part 13 are respectively connected with the fixed part 11 and the movable part 12, so that the movable part 12 can move relative to the fixed part 11; the camera module 2 and the coil 6 are both arranged on the movable part 12; the fixing part 11 is fixedly connected with the positioning seat 3, the magnetic assembly 5 comprises two magnets 51 which are fixedly arranged on the positioning seat 3 and are arranged in parallel, the coil 6 is arranged opposite to the magnets 51, and the elastic part 13 is positioned between the two magnets 51; the two ends of the spring 4 are respectively connected to the positioning seat 3 and the movable part 12, so that the camera module 2 rotates around the rotation center of the spring 4 vibrator system formed by the movable part 12, the elastic part 13, the spring 4 and other parts, the plane where the elastic part 13 is located is closer to the rotation center, the power consumption is effectively reduced, and the anti-shake performance is improved.

The above description is only a preferred embodiment of the present invention, and it should be noted that, for those skilled in the art, various modifications and substitutions can be made without departing from the technical principle of the present invention, and these modifications and substitutions should also be regarded as the protection scope of the present invention.

Claims

1. A miniature anti-shake pan-tilt is characterized by comprising an elastic support, a camera module, at least one positioning seat, at least one group of springs, at least one magnetic assembly and at least one coil;

the camera module and the coil are arranged on the movable part;

2. The micro anti-shake cradle head according to claim 1, wherein the elastic members are L-shaped, and there are two elastic members, and the movable member is located between the two elastic members.

3. The miniature anti-shake tripod head according to claim 1, wherein the magnet is provided with an inclined surface inclined from a vertical surface, the inclined surface being disposed opposite to the coil.

4. The miniature anti-shake pan/tilt head according to claim 1, wherein the coil has two mutually parallel active segments, the active segments being parallel to the image sensor of the camera module;

5. The miniature anti-shake pan/tilt head according to claim 1, wherein the lens of the camera module passes through a plane in which the elastic component is located.

6. The micro anti-shake tripod head according to claim 1, wherein the extending direction of the spring and the elastic member are obliquely arranged.

7. The micro anti-shake holder according to claim 1, wherein the elastic member has a thickness in an extending direction thereof of less than 20% of a width in the extending direction thereof.

8. The miniature anti-shake tripod head according to claim 1, wherein a distance between a plane of the elastic component and a rotation center of the camera module is less than 30% of a height of the miniature anti-shake tripod head in an optical axis direction of the camera module.

9. The miniature anti-shake tripod head according to claim 1, wherein a distance between a plane of the elastic component and an image sensor of the camera module is greater than 20% of a height of the miniature anti-shake tripod head in an optical axis direction of the camera module.

10. The miniature anti-shake tripod head according to claim 1, wherein the lens and the image sensor of the camera module are relatively fixed, and the camera module is detachably connected to the movable member.