CN210781014U - Jitter compensation device, optical device, and camera - Google Patents

Abstract

The application provides a shake compensation device, optical device and camera, this shake compensation device includes stator group and active cell group, and the stator group is used for driving the active cell group and removes, and the active cell group is used for with imaging element fixed connection, and stator group and active cell group locate imaging element one side of imaging element formation of image face dorsad. Through the mode that stator group drive active cell group removed, can drive the imaging element and remove, and stator group and active cell group all set up the one side at the imaging element imaging surface dorsad, do not need the side drive imaging element removal all around at the imaging element promptly, can reduce imaging element size all around, shake compensation arrangement is adapted to the appearance of imaging element and the compact structure design of the mode of range upon range of setting also being convenient for optical device and camera more of the appearance that stacks up, and the size is little, portable and use.

Description

Jitter compensation device, optical device, and camera

Technical Field

The application relates to the technical field of shooting and anti-shake, in particular to a shake compensation device, an optical device and a camera.

Background

In the shooting process of industries such as movie and television, live broadcast and the like, handheld shooting is a main operation means, handheld shooting is unstable, and a camera is easy to shake and cannot shoot clear images. The camera has an anti-shake function which is an important embodiment for judging the design level of the camera, the current camera anti-shake function is mainly improved on a lens, a small number of camera anti-shake functions are improved on an imaging unit, and an anti-shake device is arranged around the side edge of the imaging unit. No matter which kind of anti-shake device, can make the whole length and width size increase of camera, and if do not increase the length and width size of camera, only can set up the anti-shake device of minimum size, the anti-shake effect is poor.

SUMMERY OF THE UTILITY MODEL

An object of the present application is to provide a shake compensation apparatus, an optical apparatus, and a camera capable of solving the above-described problems.

In order to achieve the purpose of the application, the application provides the following technical scheme:

in a first aspect, the application provides a shake compensation device, including stator group and active cell group, stator group is used for the drive active cell group removes, active cell group be used for with imaging unit fixed connection, imaging unit includes sensor circuit board and imaging sensor, imaging sensor has installation face and the imaging surface of carrying on the back mutually, the installation face with sensor circuit board connects, stator group with active cell group locates sensor circuit board dorsad one side of imaging surface.

In a possible implementation manner, the stator group is arranged between the imaging unit and the mover group, or the stator group is arranged on a side of the mover group, which faces away from the imaging unit; or the stator group comprises a first stator group and a second stator group, the first stator group is arranged between the imaging unit and the rotor group, and the second stator group is arranged on one side of the rotor group, which faces away from the imaging unit.

In a possible embodiment, the stator pack comprises a magnetic member and a stator mounting plate, the magnetic member being mounted on the stator mounting plate; the rotor set comprises an electromagnet and a rotor mounting plate, and the electromagnet is mounted on the rotor mounting plate.

In one possible embodiment, the magnetic member includes a first magnetic portion and a second magnetic portion, the electromagnet includes a first coil portion and a second coil portion, the first magnetic portion and the first coil portion are opposite, the second magnetic portion and the second coil portion are opposite, the first magnetic portion is used for driving the first coil portion to move along a first straight line, and the second magnetic portion is used for driving the second coil portion to move along a second straight line; the first line and the second line are perpendicular.

In a possible embodiment, the number of the first coil portions is at least two, at least two of the first coil portions being arranged in parallel to the first straight line; and/or the number of the second coil parts is at least two, and at least two second coil parts are arranged in parallel to the second straight line.

In a possible embodiment, the current flow directions of at least two first coil portions are not exactly the same, and the first magnetic portion drives adjacent first coil portions of the at least two first coil portions to move in opposite directions so as to rotate the mover group; the current flow directions of at least two second coil parts are not completely the same, and the second magnetic part drives the adjacent second coil parts of the at least two second coil parts to move along opposite directions so as to drive the rotor set to rotate.

In a possible embodiment, the number of the first magnetic parts is at least one, at least one of the first magnetic parts is arranged parallel to the first straight line; and/or the number of the second magnetic parts is at least two, and at least two second magnetic parts are arranged in parallel to the second straight line.

In a possible embodiment, the first and/or second magnetic part comprises at least two first magnets and at least one second magnet, the first magnets having a greater width than the second magnets, the second magnets being arranged alternately with the first magnets, the first and second magnets having different magnetization directions; the magnetizing directions of the first magnet and the second magnet are mutually vertical, and the first magnet and the second magnet are alternately arranged along the width direction of the first magnet and the second magnet; the magnetizing directions of the adjacent first magnets are opposite, and the magnetizing directions of the adjacent second magnets are opposite; the magnetizing direction of the first magnet is perpendicular to the plane of the imaging unit, and the magnetizing direction of the second magnet is parallel to the plane of the imaging unit.

In a possible implementation manner, when the number of the stator groups is two, the first magnetic parts of the first stator group are the same in number and opposite in position to the first magnetic parts of the second stator group; and/or the number of the second magnetic parts of the first stator group is the same as that of the second magnetic parts of the second stator group, and the positions of the second magnetic parts correspond to those of the second stator group.

In a possible embodiment, the shake compensation apparatus further includes a position detection unit for detecting a displacement of the imaging unit; the number of the position detection units is three or more.

In a possible embodiment, the position detecting unit comprises a position sensor for detecting the magnetic field of the magnetic member to obtain the displacement of the moving group; the position detection unit further comprises a reference magnetic part, and the reference magnetic part provides a reference magnetic field for the position sensor.

In a possible embodiment, one of the reference magnetic member and the position sensor is mounted on the stator mounting plate, and the other is mounted on the mover mounting plate, and the reference magnetic member corresponds to the position sensor; the magnetizing direction of the reference magnetic piece is parallel to the plane of the imaging unit.

In one possible embodiment, each group of the position detection units includes two or more hall magnets, and the two or more hall magnets are arranged in parallel and have opposite polarities between adjacent hall magnets.

In one possible embodiment, the first stator set and the second stator set are fixedly connected by a stator connecting member, the moving set is provided with a limiting hole, the stator connecting member passes through the limiting hole, and when the moving set moves relative to the first stator set and the second stator set, the peripheral side wall of the limiting hole contacts with the stator connecting member to limit the displacement of the moving set.

In a possible implementation manner, a buffering structure is arranged on the periphery of the stator connecting piece and used for buffering the impact of the stator connecting piece and the side wall of the limiting hole.

In one possible embodiment, a support body is provided between the rotor group and the stator group, and the rotor group is moved relative to the stator group by the support body.

In a possible embodiment, a tensioning member is connected between the moving set and the stator set, and is used for tensioning the moving set and the stator set so as to enable the moving set and the stator set to be always in contact with the supporting body; stator group is equipped with the through-hole, stator group dorsad one side surface of active cell group is equipped with the support, the one end of tensioning piece with the leg joint, the other end passes the through-hole with active cell group connects.

In one possible embodiment, the support body includes balls, and the stator assembly and the mover assembly are provided with ball pads on which the balls roll.

In a second aspect, the present application provides an optical apparatus, including an imaging unit and the shake compensation apparatus provided in the first aspect, the shake compensation apparatus is disposed on a side of the imaging unit facing away from an imaging surface.

In a third aspect, the present application provides a camera, including a body and the optical device provided in the second aspect, the optical device is disposed in the body, the optical device includes an imaging unit and a shake compensation device, and the shake compensation device is disposed on a side of the imaging unit opposite to an imaging surface.

Through the mode that stator group drive active cell group removed, can drive the imaging element and remove, and stator group and active cell group all set up the one side at the imaging element imaging surface dorsad, do not need the side drive imaging element removal all around at the imaging element promptly, can reduce imaging element size all around, shake compensation arrangement is adapted to the appearance of imaging element and the compact structure design of the mode of range upon range of setting also being convenient for optical device and camera more of the appearance that stacks up, and the size is little, portable and use.

Drawings

FIG. 1 is a schematic diagram of an embodiment of an optical device;

FIG. 2 is a schematic view of the structure of a camera of one embodiment, wherein the housing is not shown;

FIG. 3 is a schematic diagram of another view of the camera of FIG. 2;

FIG. 4 is an exploded view of one embodiment of a camera, including enlarged partial views A-1, B, C, and D;

fig. 5 is an exploded view of another perspective of the camera of fig. 4, including partially enlarged views a-2, E and F.

Detailed Description

The technical solutions in the embodiments of the present application will be described below clearly with reference to the drawings in the embodiments of the present application, and it is obvious that the described embodiments are only a part of the embodiments of the present application, and not all of the embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present application.

It will be understood that when an element is referred to as being "secured to" another element, it can be directly on the other element or intervening elements may also be present. When a component is referred to as being "connected" to another component, it can be directly connected to the other component or intervening components may also be present.

Unless defined otherwise, all technical and scientific terms used herein have the same meaning as commonly understood by one of ordinary skill in the art to which this application belongs. The terminology used herein in the description of the present application is for the purpose of describing particular embodiments only and is not intended to be limiting of the application. As used herein, the term "and/or" includes any and all combinations of one or more of the associated listed items.

Some embodiments of the present application will be described in detail below with reference to the accompanying drawings. The embodiments described below and the features of the embodiments can be combined with each other without conflict.

Referring to fig. 1, an optical apparatus 100 is provided in the present embodiment, and in conjunction with fig. 4, the optical apparatus includes an imaging unit 30 and a jitter compensation device. The imaging unit 30 includes a sensor circuit board 31 and an imaging sensor 32, the imaging sensor 32 is disposed on a side surface of the sensor circuit board 31, and a plurality of control devices and circuits are disposed on the sensor circuit board 31 to provide control signals for the imaging sensor 32 and receive images and videos photographed by the imaging sensor 32. The imaging sensor 32 is, for example, a Charge-coupled Device (CCD) or a Complementary Metal Oxide Semiconductor (CMOS) sensor, and may be a sensor that corresponds to other spectral regions except visible light such as infrared light and ultraviolet light, or a sensor that transmits and receives laser light and sonar to form an image. The size of the imaging sensor 32 may be medium frame, full frame, APS-C, etc. The imaging sensor 32 has a mounting surface connected to the sensor circuit board 31 and an imaging surface 321. The imaging surface 321 is opposite to the mounting surface, and the imaging surface 321 is used for receiving light. The shake compensation device is disposed on the side of the sensor circuit board 31 facing away from the imaging surface 321 of the imaging sensor 32.

The shake compensation device is arranged on one side of the imaging surface 321 of the imaging unit 30, which faces away from the imaging sensor 32, the shake compensation device is arranged in the direction perpendicular to the imaging surface 321, instead of being arranged around the imaging unit 30, the size of the peripheral side direction of the imaging unit 30 can be reduced, and the shake compensation device is suitable for the appearance of the imaging unit and is arranged in a stacked mode, so that the optical device 100 is further compact in structure, small in size, convenient to carry and use.

Referring to fig. 2 and 3, an embodiment of the present application further provides a camera 1000, and in conjunction with fig. 1 and 4, the camera 1000 includes a body and an optical device 100, the body includes a lens mount assembly 10 and a housing (not shown). The optical device 100 is disposed in the body, and specifically, the optical device is connected to the lens mount assembly 10, and the housing is connected to the lens mount assembly 10 and surrounds the optical device 100, so that the optical device 100 is entirely disposed in a space enclosed by the housing and the lens mount assembly 10. The lens mount assembly 10 is provided with a finder window 101, and the finder window 101 corresponds to an imaging surface 321 of the imaging sensor 32. The lens mount assembly 10 includes a lens mount 11 and a lens mount 12, the lens mount 12 is fixed on the lens mount 11, and the lens mount 12 is annular and encloses the viewfinder 101. The inner wall of the lens mount 12 is provided with a plurality of engaging portions 13, and the engaging portions 13 are used for engaging with a lens (not shown) to fix the lens on the lens mount 12. When the lens needs to be replaced, the lens can be separated from the engaging portion 13. The light enters the finder window 101 through a lens structure in the lens, and irradiates on an imaging surface 321 of the imaging sensor 32, and the imaging sensor 32 acquires the light to form an image. The lens mount 11 is provided with a connection post 14 connected to the optical device 100, and the connection post 14 may be matched with a screw or other structures to fix the lens mount assembly 10 and the optical device 100. The optical apparatus 100 includes an imaging unit 30 and a shake compensation device, the imaging unit 30 includes an imaging sensor 32, and the shake compensation device is disposed on a side of the imaging unit 30 facing away from an imaging surface 321 of the imaging sensor 32.

By arranging the optical device 100 in the body, the camera 1000 is integrated, the shake compensation device is arranged on one side of the imaging surface 321 of the imaging unit 30, which faces away from the imaging sensor 32, the shake prevention structure is arranged in the direction perpendicular to the imaging surface 321 instead of being arranged around the imaging unit 30, the size of the imaging unit 30 of the camera in the direction of the side edge can be reduced, and the camera 1000 is compact in structure, small in size, convenient to carry and use.

The shake compensation apparatus is described in detail below.

Referring to fig. 4 and 5, the shake compensation apparatus includes a stator set (refer to reference numerals 40 and/or 80) and a mover set 60, the stator set is used to drive the mover set 60 to move, and the imaging unit 30 is fixedly connected to the mover set 60.

Specifically, three directions, i.e., a first direction X, a second direction Y, and a third direction Z, are defined. The first direction X and the second direction Y are parallel to the imaging plane 321, and the third direction Z is perpendicular to the imaging plane 321. As can be seen from the foregoing, the imaging unit 30 and the shake compensation device are arranged in this order along the third direction Z. The stator set and the mover set 60 are arranged in a stacked structure along the third direction Z, the mover set 60 is fixedly connected to the imaging unit 30, and the stator set drives the mover set 60 to move, and the moving direction can be in a manner of rotating along the first direction X, along the second direction Y, in a plane formed by being parallel to the first direction X and the second direction Y, and the like, so that the imaging unit 30 can move along with the moving, and when the shake occurs, the imaging unit 30 moves to compensate the shake, thereby achieving the shake compensation effect.

Therefore, the shake compensation device can drive the imaging unit 30 to move in a manner that the stator set drives the moving set 60 to move, and the stator set and the moving set 60 are both arranged on the side of the imaging unit 30, which is opposite to the imaging surface 321 of the imaging sensor 32, i.e. the imaging unit 30 does not need to be driven to move on the peripheral side surface of the imaging unit 30, so that the peripheral size of the imaging unit 30 can be reduced, and the shake compensation device is suitable for the appearance of the imaging unit and is arranged in a stacked manner, so that the optical device 100 and the camera 1000 are more convenient to design in a compact structure, small in size and convenient to carry and use.

In one possible embodiment, the number of the stator groups is 1, and referring to fig. 4, the stator group 40 is disposed between the imaging unit 30 and the mover group 60, or the stator group 80 is disposed on a side of the mover group 60 opposite to the imaging unit 30. Through this setting, can further compress the whole size of shake compensation arrangement, and then the miniaturized scheme of the various picture cameras of adaptation.

In one possible embodiment, referring to fig. 4, the number of the stator groups is 2, the stator groups include a first stator group 40 and a second stator group 80, the first stator group 40 is disposed between the imaging unit 30 and the mover group 60, and the second stator group 80 is disposed on a side of the mover group 60 opposite to the imaging unit 30. This embodiment enables the moving group 60 to be driven more sensitively, thereby providing a better stabilization effect to the imaging unit 30.

No matter the number of the stator groups is 1 or 2, the imaging unit 30 is driven to move on the back side of the imaging surface 321 of the imaging sensor 32 of the imaging unit 30, and the dimension of the imaging unit 30 in the peripheral side direction can be reduced.

Taking the stator group 40 as an example, the stator group 80 is disposed with reference. The stator assembly 40 includes a stator mounting plate 41 and a magnetic member 42, and the magnetic member 42 is mounted on the stator mounting plate 41. Specifically, referring to fig. 5, the stator mounting plate 41 is provided with a magnetic member mounting groove 411/412 corresponding to the magnetic member 42 in shape, the magnetic member mounting groove 411/412 is a groove dug on the stator mounting plate 41, the magnetic member mounting groove 411/412 does not penetrate through the two side surfaces of the stator mounting plate 41, and the magnetic member 42 is only embedded into the magnetic member mounting groove 411/412 when the magnetic member 42 is mounted on the stator mounting plate 41. It is understood that the magnetic member 42 and the stator mounting plate 41 may be mounted in any other possible manner, including but not limited to gluing, welding, clamping, etc.

The mover group 60 includes a mover mount plate 61 and an electromagnet 62, and the electromagnet 62 is mounted on the mover mount plate 61. The electromagnet 62 may be mounted on the mover mount plate 61 in the same manner as the magnetic member 42 is mounted on the stator mount plate 41, or may be different.

The magnetic member 42 of the stator assembly 40 has a magnetic field, the electromagnet 62 of the mover assembly 60 is energized and then subjected to a magnetic force in the magnetic field, and the mover assembly 60 moves under the magnetic force, so as to drive the imaging unit 30 fixedly connected with the mover assembly 60 to move. The magnetic force action mode is adopted, the structure is simple, and the realization is convenient.

The magnetic member 42 includes a first magnetic portion 421 and a second magnetic portion 422, and the electromagnet 62 includes a first coil portion 621 and a second coil portion 622. The first magnetic part 421 is opposed to the first coil part 621, and the second magnetic part 422 is opposed to the second coil part 621. The first magnetic part 421 is used to drive the first coil part 621 to move along a first straight line, and the second magnetic part 422 is used to drive the second coil part 622 to move along a second straight line.

The first and second magnetic parts 421 and 422 may be permanent magnets, and the first and second coil parts 621 and 622 may be coils around which wires are wound.

The first line coincides with the first direction X, the second line coincides with the second direction Y, the first coil section 621 moves along the first line including moving in the first direction X and moving in the opposite direction to the first direction X, and the second coil section 622 moves along the second line including moving in the second direction Y and moving in the opposite direction to the second direction Y. When the shake occurs, the first coil part 621 is driven to move along the first straight line by the first magnetic part 421, and the second coil part 622 is driven to move along the second straight line by the second magnetic part 422, and the moving directions of the first coil part 621 and the second coil part 622 are reasonably selected according to the shake direction, so that the shake compensation is realized. For example, when the direction in which the shake occurs is the first direction X, the first coil portion 621 moves along a first straight line, i.e., in the opposite direction of the first direction X, and can compensate for the displacement of the shake; when the direction in which the shake occurs is opposite to the second direction Y, the second coil part 622 moves along the second straight line, i.e., the second direction Y, and can compensate for the displacement of the shake.

Wherein the first straight line intersects the second straight line, preferably the first straight line and the second straight line are perpendicular. The first straight line is not parallel to the second straight line, and the two straight lines intersect, so that the shake in any direction can be compensated by reasonably controlling the moving direction of the first coil part 621 and/or the second coil 622. When the direction of the shake is the first direction X or the second direction Y, the shake compensation can be realized by controlling one of the first coil portion 621 or the second coil portion 622 to move. When the direction of the jitter is not coincident with the first direction X and the second direction Y but forms an included angle, the first coil part 621 and the second coil part 622 can be controlled to move simultaneously, the jitter at this time can be decomposed into a jitter component on a first straight line and a jitter component on a second straight line, the first coil part 621 and the second coil part 622 are respectively controlled to move to compensate the two jitter components, and the moving direction of the mover mounting plate 61 is opposite to the jitter direction, so that the jitter compensation is realized.

In one possible embodiment, the number of the first coil portions 621 is at least two, and at least two first coil portions 621 are arranged side by side or in sequence in parallel to the first straight line (refer to the first direction X). The number of the first coil portions 621 may be 2, 3, 4, etc., and the greater the number, the stronger the magnetic force received, the better the compensation effect for the shake. The first coil portion 621 moves along a first straight line (refer to the first direction X) to compensate for a shake on the first straight line, or to compensate for a shake component on the first straight line.

In a possible embodiment, the number of the second coil parts 622 is at least two, and at least two second coil parts 622 are arranged side by side or in sequence parallel to the second straight line (with reference to the second direction Y). The number of the second coil portions 622 may be 2, 3, 4, etc., and the larger the number, the stronger the received magnetic force, the better the compensation effect for the jitter. The second coil part 622 moves along the second straight line (refer to the second direction Y) to compensate for the shake on the second straight line, or to compensate for the shake component on the second straight line. In particular, in order to fit most common rectangular imaging units and to leave a reasonable magnetic path space, at least two first coil portions 621 may be arranged side by side parallel to a straight line of a short side of the imaging unit, and at least two second coil portions 622 may be arranged in sequence parallel to a straight line of a long side of the imaging unit.

It is understood that the number of the first coil portion 621 and the second coil portion 622 may be variously combined, and the number of the first coil portion 621 and the second coil portion 622 is not limited to at least two. For example, the above-described compensation effect for the jitter can be achieved by setting the number of the first coil portions 621 to 1 and the number of the second coil portions 622 to 2, or vice versa. That is, the number of at least one of the first coil portion 621 and the second coil portion 622 may be at least two.

In a possible embodiment, the number of the first coil portions 621 is at least two, and the current flow directions of at least two first coil portions 621 are not completely the same, for example, when the number of the first coil portions 621 is 2, the current flow directions of two first coil portions 621 are different, and when the number of the first coil portions 621 is 3, the current flow direction of 1 of the first coil portions 621 is different from the current flow directions of the other two first coil portions 621, and no matter how the 3 first coil portions 621 are arranged, it is inevitable that the current flow directions of the adjacent two first coil portions 621 are different. The first magnetic part 421 drives the adjacent first coil part 621 of the at least two first coil parts 621 to move in opposite directions to rotate the moving element group 60. In this embodiment, at least two first coil portions 621 may have a certain distance difference from the first straight line on the second straight line, so that the magnetic force applied to the adjacent first coil portions 621 forms a bending moment, and magnetic forces that cancel each other on the same straight line are not formed, thereby enabling the adjacent first coil portions 621 to move in opposite directions. In addition to the fact that the current flow directions of the at least two first coil portions 621 are not completely the same, the directions of the voltages may be different, and on the basis that the current flow directions or the directions of the voltages are different, the magnitude of the magnetic force of the at least two first coil portions 621 may be controlled by controlling the magnitude of the current or the voltage, so as to control the rotation angle of the rotor set 60. Illustratively, the rotation of the mover group 60 is always maintained in the same plane (i.e., the plane formed by the first direction X and the second direction Y). The number of the first coil portions 621 is at least two, and the current flows in different directions, so that the purpose of rotating the rotor set 60 can be achieved by receiving magnetic forces in different directions under the magnetic field of the first magnetic portion 421, and the rotor set is simple in structure and easy to implement.

In one possible embodiment, similar to the first coil portion 621, the current flow directions of the at least two second coil portions 622 are not completely the same, and the second magnetic portion 622 drives the adjacent second coil portions 622 of the at least two second coil portions 622 to move in opposite directions, so as to rotate the moving element group 60. The second coil portion 622 may be disposed with reference to the first coil portion 621, and is not described in detail.

It should be understood that the rotation of the moving element group 60 can be realized by controlling the first coil portion 621 or the second coil portion 622, and the rotation of the moving element group 60 can also be realized by simultaneously controlling the first coil portion 621 and the second coil portion 622.

The imaging sensor 32 is rectangular and includes a long side extending along a first straight line (refer to the first direction X) and a short side extending along a second straight line (refer to the second direction Y), the size of the long side being larger than the size of the short side.

In a possible embodiment, the number of the first magnetic parts 421 is at least one, and at least one first magnetic part 421 is arranged side by side or in sequence parallel to the first straight line (with reference to the first direction X). The number of the first magnetic parts 421 may be 1, 2, 3, etc., the first magnetic parts 421 correspond to the first coil parts 621, and the first coil parts 621 move along the first straight line to drive the short sides of the imaging sensor 32 to move. Since the size of the short side of the imaging sensor 32 is relatively small, the magnetic force driving the movement of the short side is relatively small, and the number of the first magnetic parts 421 corresponding thereto may be 1.

In a possible embodiment, the number of the second magnetic parts 422 is at least two, and at least two second magnetic parts 422 are arranged side by side or in sequence parallel to the second straight line. The number of the second magnetic parts 422 may be 2, 3, 4, etc., the second magnetic parts 422 correspond to the second coil part 622, and the second coil part 622 moves along the second straight line to move the long side of the imaging sensor 32. Since the size of the long side of the imaging sensor 32 is relatively large, the magnetic force for driving the long side to move is relatively large, and the number of the second magnetic parts 422 corresponding to the magnetic force can be larger than the number of the first magnetic parts 421, so as to adapt to the corresponding moment of the driving force required for anti-shake along the long side. For example, the number of the first magnetic parts 421 is 1, and the number of the second magnetic parts 422 is 2; the number of the first magnetic parts 421 is 2, the number of the second magnetic parts 422 is 4, and the like. In particular, in order to adapt most of the common rectangular imaging units and to leave a reasonable magnetic path space, at least one first magnetic part 421 may be disposed parallel to the straight line of the short side of the imaging unit, and at least two second magnetic parts 422 may be sequentially disposed parallel to the straight line of the long side of the imaging unit.

In one possible embodiment, taking the second magnetic part 422 as an example, the first magnetic part 421 can be referred to. The second magnetic part 422 includes at least two first magnets 4221 and at least one second magnet 4222, the first magnets 4221 have a width (a dimension in the second direction Y is the width) greater than that of the second magnets 4222, the second magnets 4222 are alternately arranged with the first magnets 4221, and the first magnets 4221 and the second magnets 4222 have different magnetizing directions. The structure in which the wide first magnets 4221 and the narrow second magnets 4222 of the second magnetic part 422 are alternately arranged and the magnetizing directions are different can change the magnetic field distribution of the second magnetic part 422, so that the magnetic force received by the second coil part 622 is better controlled.

In one possible embodiment, the magnetizing directions of the first and second magnets 4221 and 4222 are perpendicular to each other, and the first and second magnets 4221 and 4222 are alternately arranged in the width direction thereof. The first and second magnetic bodies 4221 and 4222 may be magnetized in directions perpendicular to each other, so that a stronger magnetic field is generated on the side of the second magnetic part 422 facing the second coil part 622 (or away from the second coil part 622), and a larger (smaller) magnetic force can be applied to the second coil part 622 at the same current or voltage. It will be appreciated that in some cases the magnitude of the magnetic field may be reduced, and therefore the magnetic force may also be reduced by the above arrangement.

In one possible embodiment, when the number of the first magnets 4221 and the second magnets 4222 is greater than or equal to 2, the magnetization directions of the adjacent first magnets 4221 are opposite, and the magnetization directions of the adjacent second magnets 4222 are opposite. The magnetization direction is opposite, and the magnetic field distribution is changed, so that the magnetic field of the second magnetic part 422 toward the second coil part 622 (or away from the second coil part 622) is stronger, and a larger (smaller) magnetic force can be applied to the second coil part 622 under the same current or voltage.

In one possible embodiment, the first magnet 4221 is magnetized in a direction perpendicular to the plane of the imaging unit 30, and the second magnet 4222 is magnetized in a direction parallel to the plane of the imaging unit 30. This makes the magnetic field on the side of the second coil portion 622 stronger, and a larger magnetic force can be applied to the second coil portion 622 at the same current or voltage.

In one possible embodiment, when the number of stator groups is two, the first stator group 40 and the second stator group 80 are included. The first magnetic parts 421 of the first stator group 40 and the first magnetic parts 821 of the second stator group 80 are the same in number and opposite in position, so that the first stator group 40 and the second stator group 80 can simultaneously apply magnetic force to the rotor group 60, the magnetic force is stronger, and the movement of the rotor group 60 along the first straight line (refer to the first direction X) can be more sensitive and quicker by matching the change of the current or the voltage of the rotor group 60.

In one possible embodiment, the second magnetic portions 422 of the first stator group 40 are the same in number and correspond in position to the second magnetic portions 822 of the second stator group 80. The first stator set 40 and the second stator set 80 can simultaneously apply magnetic force to the rotor set 60, the magnetic force is stronger, and the movement of the rotor set 60 along the second straight line (referring to the second direction Y) can be more sensitive and rapid in cooperation with the change of the current or the voltage of the rotor set 60. At the same time, by controlling the change of the current or voltage, the rotation of the moving element group 60 can be more sensitive and rapid.

In a possible embodiment, the shake compensation apparatus further includes a position detection unit for detecting a displacement of the imaging unit 30. The position detection unit 30 detects the displacement of the imaging unit 30, and obtains the compensated displacement for determining whether the compensation is successful.

In one possible embodiment, the position detection unit comprises a position sensor 711, and the position sensor 711 is used for detecting the magnetic field of the magnetic member 42 to obtain the displacement of the moving element group 60. Under the magnetic field of the magnetic member 42, the displacement of the mover group 60 is related to the magnetic field and the current and voltage of the mover group 60, and the current and voltage are known, so that the displacement of the mover group 60 can be obtained according to the related calculation formula when the magnetic field is measured. The displacement of the moving object group 60 is obtained by means of magnetic field measurement, and the device is simple in structure and easy to implement.

In one possible embodiment, the position detection unit further comprises a reference magnetic member 51, and the reference magnetic member 51 provides a reference magnetic field for the position sensor 711. Since the internal space of the electronic device is limited, the magnetic member 42 is generally about the same size as the coils of the mover group 60, and it is difficult to spatially arrange the position of the position sensor 711 corresponding to the magnetic member 42 in order to save space. Therefore, the reference magnetic member 51 is provided, the magnetic field distribution of the reference magnetic member 51 is substantially the same as that of the magnetic member 42, and the position of the reference magnetic member 51 may be shifted from that of the magnetic member 42 to ensure the arrangement space of the magnetic member 42. Of course, the reference magnetic member 51 may not be provided for the position detecting unit, and the displacement of the moving element group 60 may be obtained by detecting the change of the magnetic field generated by the stator group.

In one possible embodiment, one of the reference magnetic member 51 and the position sensor 711 is mounted on the stator mounting plate 41, and the other is mounted on the mover mounting plate 61, and the reference magnetic member 51 corresponds to the position sensor 711. For example, the reference magnetic member 51 is mounted on the stator mounting plate 41, and referring to fig. 5, a reference magnetic member mounting groove 413 may be formed in the stator mounting plate 41, the reference magnetic member mounting groove 413 may have a structure similar to that of the magnetic member mounting groove 411/412, and may be disposed in a staggered manner, and the reference magnetic member 51 is inserted into the reference magnetic member mounting groove 413 and fixed on the stator mounting plate 41. The position sensor 711 is mounted on the mover mounting plate 61, a position sensor mounting groove 603 may be formed in the mover mounting plate 61, the position sensor mounting groove 603 may be similar to the magnetic member mounting groove 411/412, and the position sensor 603 is embedded in the position sensor mounting groove 603 to be fixed.

In one possible embodiment, the magnetizing direction of the reference magnetic member 51 is parallel to the plane of the imaging unit 30. The reference magnetic member 51 is disposed as similar as possible to the magnetic member 42, and referring to the manner of disposing the magnetic member 42, the magnetizing direction of the reference magnetic member 51 is parallel to the imaging unit 30, so that a larger reference magnetic field (or a larger reference magnetic field facing away from the moving group 60) can be generated on the side of the reference magnetic member 51 facing the moving group 60, and the displacement sensor 711 can receive a larger (or smaller) magnetic force, thereby more accurately detecting the displacement of the moving group 60.

In one possible embodiment, the number of the position detection units is three or more. Three sets of position detection units, i.e., three position sensors 711 and reference magnetic members 51 corresponding to each other, are shown in fig. 4. The three sets of position detecting units are staggered from each other and arranged between the gaps of the plurality of magnetic members 42. The magnetic paths between the sets of position detecting units and the plurality of magnetic members 42 are not affected by each other. It should be understood that the number of the position detecting units may be 3, 4, 5, etc., and three or more sets of position detecting units can detect magnetic fields at multiple positions, resulting in more accurate displacement data of the mover group 60.

In one possible embodiment, each group of position detecting units includes two or more hall magnets, and the two or more hall magnets are arranged in parallel and have opposite polarities between adjacent hall magnets. As shown in fig. 4, the reference magnetic member 51 includes two hall magnets 511 and 512, and in other embodiments, the number of the hall magnets may be 3, 4, 5, and the like. Two or more hall magnets are arranged in parallel and the polarities of the adjacent hall magnets are opposite to each other, so that a larger (or smaller) magnetic field can be generated toward one side of the displacement sensor 711, and the displacement sensor 711 receives a larger (or smaller) magnetic force, so that the displacement of the moving element group 60 can be more sensitively detected.

In one possible embodiment, the optical device 100 further includes a power pack 70, and the power pack 70 is connected to the mover pack 60 and is configured to provide power to the electromagnet 62. The electromagnet 62 needs to be driven by power to move in the magnetic field of the stator assembly 40 and/or the stator assembly 80, so that the power assembly is arranged to provide driving power for the optical device 100 to ensure that the jitter compensation is performed.

In one possible embodiment, the power pack 70 includes a flexible circuit board 71, and the flexible circuit board 71 is disposed on a side of the animal pack 60 facing away from the imaging unit 30. The flexible circuit board 71 is connected to a control circuit on the mover mounting plate 61 to supply power to enable the electromagnet 62 to have current flow. The end of the flexible circuit board 71 remote from the animal group 60 may be connected to a power source or a main board of the camera. The displacement sensor 711 can also be connected to the flexible circuit board 71, on one hand, the flexible circuit board 71 supplies power to the displacement sensor 711, and on the other hand, data detected by the displacement sensor 711 is transmitted through the flexible circuit board 71, for example, to a motherboard, so that the motherboard performs the next analysis and processing. The specific shape of the flexible circuit board 71 is not limited, and the whole flexible circuit board may be bent to be relatively attached to the optical device 100, and the size of the jitter compensation device may be further reduced.

In a possible embodiment, the optical device 100 further includes a front frame 20, the front frame 20 is disposed on the imaging surface 321 side of the imaging sensor 32, and the imaging unit 30, the front frame 20 and the mover group 60 are fixedly connected. The front frame 20 serves as a mounting bracket for enclosing the imaging unit 30 and serves to protect the imaging sensor 32. The front frame 20 includes a front frame main body 21 and a front frame mounting portion 22, the front frame main body 21 is provided with a through front frame window 201, the front frame window 201 corresponds to the position of the imaging sensor 32, the front frame mounting portion 22 is fixed on the surface of the front frame main body 21 facing one side of the imaging unit 30, the number of the front frame mounting portions 22 is multiple, the multiple front frame mounting portions 22 can form an accommodating space, the imaging unit 30 is accommodated in the accommodating space, the peripheral side walls of the imaging unit 30 are connected with the multiple front frame mounting portions 22, and the imaging unit 30 is fixed on the front frame 20. The front frame mounting portion 22 is fixedly connected to the mover group 60, specifically, the mover mounting plate 61, and may be fixed by means of screw connection, clamping connection, or the like. As shown in fig. 4, a screw 75 is disposed on a side of the mover mounting plate 61 facing away from the imaging unit 30, a through hole 611 is disposed in the mover mounting plate 61, the front frame mounting portion 22 corresponds to the through hole 611, and the screw 75 is screwed to the front frame mounting portion 22 through the through hole 611 to fix the front frame 20, the imaging unit 30, and the mover mounting plate 61.

In a possible embodiment, the optical device 100 further comprises a mounting unit, which is fixedly connected to the stator set (reference numerals 40 and/or 80), and the imaging unit 30 is disposed between the mounting unit and the stator set. The mounting unit may be the lens mount assembly 10, and the fixing manner of the lens mount assembly 10 and the stator set may be as described above, which is not described herein again. The mounting unit may also be an additional mounting structure. The purpose of the mounting unit is to integrate the stator assembly with the imaging unit 30.

In one possible embodiment, the first stator set 40 and the second stator set 80 are fixedly connected, so that the relative positions of the two stator sets are fixed, and the structure is stable, which can provide a good foundation for mounting the rotor set 60. The fixing manner of the two stator groups can adopt any one of the fixing manners described above, and the specific fixing structure is not limited.

In one possible embodiment, referring to fig. 4 and a partial enlarged view B in fig. 4, the first stator set 40 and the second stator set 80 are connected by a stator connector 77, the stator set 60 is provided with a limiting hole 601, and the stator connector 77 passes through the limiting hole 601. When the rotor set 60 moves relative to the first stator set 40 and the second stator set 80, the peripheral side walls of the limiting holes 601 contact the stator connectors 77 to limit the displacement of the rotor set 60, so that the phenomenon that the jitter compensation exceeds the limit and the imaging quality is affected is avoided.

A stopper hole 601 is opened on the mover mounting plate 61 with a space from the electromagnet 62. The stopper hole 601 is substantially rectangular in shape, and the rectangular shape and position correspond to the imaging sensor 32 so that the displacement range of the moving member group 60 is substantially the same around the imaging sensor 32. The stator connecting member 77 is, for example, a connecting rod, and both ends thereof are connected to the first stator group 40 and the second stator group 80, respectively. Illustratively, the stator coupling 77 has a length that satisfies that when the mover group 60 is disposed between the first stator group 40 and the second stator group 80, the mover group 60 has a gap with both the first stator group 40 and the second stator group 80, thereby enabling the mover group 60 to move relative to the first stator group 40 and the second stator group 80. The stator connecting member 77 may be connected to the first stator group 40 and the second stator group 80 by screwing, clipping, bonding, or the like.

In one possible embodiment, the buffer structure 78 is disposed on the periphery of the stator connecting member 77, and the buffer structure 78 is used for buffering the impact of the stator connecting member 77 and the sidewall of the limiting hole 601. The buffer structure 78 is, for example, a silicone tube, and the buffer structure 78 is fitted around the outer periphery of the stator connecting member 77.

Referring to fig. 4, a partial enlarged view B, an embodiment of the structure of the stator connecting member 77 is: the stator connection member 77 includes a cylindrical body 771, a first limit ring 772, a second limit ring 773, a first projection 774, and a second projection 775. The first limiting ring 772 and the second limiting ring 773 are respectively connected to two ends of the cylindrical body 771, the first protruding portion 774 is arranged on one side, facing away from the cylindrical body 771, of the second limiting ring 773, and the second protruding portion 775 is arranged on one side, facing away from the cylindrical body 771, of the first limiting ring 772. The cylindrical body 771, the first limit ring 772, the second limit ring 773, the first protrusion 774 and the second protrusion 775 are all cylindrical and coaxially arranged, the diameter of the first limit ring 772 is larger than that of the second limit ring 773, the buffer structure 78 is provided with a hollow through hole 781, and the buffer structure 78 extends into the cylindrical body 771 from the second limit ring 773 and covers the outer surface of the cylindrical body 771. The first projection 774 and the second projection 775 are used for connection and fixation with the second rotor set 80 and the first rotor set 771, respectively. Specifically, a screw hole 776 may be cut in the first projection 774 and the second projection 775, and the first projection 774 and the second projection 775 may be fixed by a screw engaged with the screw hole 776. The first limiting ring 772 limits the displacement of the stator connecting member 77 to the first stator set 40 side, and the second limiting ring 773 limits the displacement of the stator connecting member 77 to the second stator set 80 side.

In one possible embodiment, referring to a partial enlarged view C in fig. 4 and a partial enlarged view F in fig. 5, a supporting body 85 is disposed between the mover group 60 and the stator group 80 (taking the stator group 80 as an example, the stator group 40 may also be used), and the mover group 60 moves relative to the stator group 80 through the supporting body 85. Since the mover group 60 needs to be supported and the mover group 60 and the stator group 80 need to be moved relative to each other, the support 85 is provided to achieve the above-described object.

The support 85 includes any one of a ball, a rail, an air cushion, a magnetic levitation cushion, and a liquid levitation cushion. Fig. 4 is a partial enlarged view C and fig. 5 is a partial enlarged view F showing an embodiment of the support body 85 using balls, the stator mounting plate 81 is provided with a support body mounting groove 802, the balls (support body 85) are disposed in the support body mounting groove 802, the mover mounting plate 61 is further provided with a ball gasket mounting groove 606, and the ball gasket 76 is accommodated in the ball gasket mounting groove 606. The peripheral side wall 615 of the ball washer mounting groove 606 is non-circular in shape, such as quadrilateral, pentagonal, elliptical, irregular arc, etc. The peripheral outer wall 761 of the ball washer 76 corresponds to the peripheral side wall 615 of the ball washer mounting groove 606 in shape, the ball washer 76 is embedded into the ball washer mounting groove 606, the ball washer 76 is mounted, and the mounting fit is in shape fit. The surface of the ball pads 76 facing the stator assembly 80 has a low friction coefficient, and the surface of the low friction coefficient is used for being connected with the balls in a rolling mode, so that when the mover assembly 60 moves relative to the stator assembly 80, the balls roll on the ball pads 76, the rolling mode can reduce friction resistance, and the low friction resistance can improve the sensitivity of shake compensation. Illustratively, the number of the supporting bodies 85 is not less than three, and not less than three groups of the supporting bodies 85 are arranged at different positions.

In one possible embodiment, referring to fig. 4 and the partial enlarged views a-1 and D in fig. 4, and fig. 5 and the partial enlarged views E and a-2 in fig. 5, a tension member 86 is connected between the mover group 60 and the stator group 80, and the tension member 86 is used for tensioning the mover group 60 and the stator group 80 so as to make the mover group 60 and the stator group 80 always contact with the supporting body 85. The tension member 86 is, for example, a spring, and pulls the stator set 80 and the mover set 60 by an elastic force, so as to keep the stator set 80 and the mover set 60 supported by the support 85 all the time, and to ensure that the constant distance is kept between the mover set 60 and the stator set 80 all the time, thereby ensuring that the imaging unit 30 has a constant plane, and even if the imaging unit shakes, the imaging unit only moves in the plane of the imaging unit 30 (i.e., the plane formed by the first direction X and the second direction Y), and does not move in the third direction Z, so that the difficulty of shake compensation is reduced, and the rotor set 60 and the stator set 80 are further ensured not to be disengaged from each other.

The stator set 80 is provided with a through hole 801, a bracket 87 is arranged on the surface of one side of the stator set 80, which is opposite to the rotor set 60, one end of the tension member 86 is connected with the bracket 87, and the other end of the tension member passes through the through hole 801 to be connected with the rotor set 60.

Specifically, the tension member 86 includes a tension body portion 861 and first and second connection ends 862, 863 connected at opposite ends of the tension body portion 861. The bracket 87 includes a bracket mounting portion 871, a bracket main body portion 872, a bracket transition portion 873, a bracket stopper 874, and a bracket reinforcing portion 875.

The bracket mounting portion 871 is provided with a bracket connecting hole 876, the stator mounting plate 81 is provided with a corresponding stator connecting hole 803, and the bracket connecting hole 876 of the bracket mounting portion 871 corresponds to the stator connecting hole 803 and can be fixed by screw connection. In order to facilitate quick positioning, the stator mounting plate 81 can also be provided with a positioning groove 802, the positioning groove 802 corresponds to the stator connecting hole 803, the stator connecting hole 803 is arranged in the positioning groove 802, the shape of the positioning groove 802 corresponds to that of the bracket mounting part 871, the bracket mounting part 871 extends into the positioning groove 802, and accordingly the bracket connecting hole 876 corresponds to the stator connecting hole 803, and quick mounting operation can be achieved.

The bracket main body portion 872 extends from the circumference of the bracket mounting portion 871, the bracket main body portion 872, the bracket transition portion 873 and the bracket limiting portion 874 are connected in sequence, and the size of the bracket transition portion 873 is smaller than the bracket main body portion 872 and the bracket limiting portion 874, so that a groove is formed at the position of the bracket transition portion 873. The bracket reinforcing portion 875 extends from the circumferential direction of the bracket mounting portion 871, and is connected with the bracket main body portion 872, the bracket transition portion 873 and the bracket limit portion 874 for reinforcing the overall structural strength of the bracket 87.

The first connection end 862 of the tension member 86 is annularly sleeved at the bracket transition portion 873, and the bracket limiting portion 874 is used for limiting the displacement of the first connection end 862 in the extending direction of the bracket main body portion 872.

A similar structure to the bracket 87 is also provided on the mover mounting plate 61 for connection with the second connection end 863 of the tension member 86. Specifically, referring to a partial enlarged view a-1 in fig. 4 and a partial enlarged view a-2 in fig. 5, the mover mounting plate 61 is provided with a connecting member through hole 602, the inner wall of the connecting member through hole 602 is provided with the connecting member 65, the connecting member 65 includes a connecting member main body portion 651, a connecting member transition portion 652, a connecting member spacing portion 653, and a connecting member reinforcing portion 654, the connecting member main body portion 651 is connected to the inner wall of the connecting member through hole 602, the connecting member main body portion 651, the connecting member transition portion 652, and the connecting member spacing portion 653 are sequentially connected, and the size of the connecting member transition portion 652 is smaller than that of the connecting member main body portion 651 and the. Connector reinforcing portion 654 is connected to the inner wall of connector through hole 602 and is connected to connector main body portion 651, connector transition portion 652 and connector spacing portion 653 for reinforcing the overall structural strength of connector 65.

The second connection end 863 of the tension member 86 is annular and sleeved at the position of the connection member transition portion 652, and the connection member spacing portion 653 is used for limiting the displacement of the second connection end 863 in the extending direction of the connection member main body portion 651.

The bracket reinforcing portion 875 and the connector reinforcing portion 654 are provided on the side of the tension body portion 861 adjacent to the tension member 86, respectively. The present application has been described in detail above, and the principles and embodiments of the present application have been described herein using specific examples, which are provided only to help understand the method and the core concept of the present application; meanwhile, for a person skilled in the art, according to the idea of the present application, there may be variations in the specific embodiments and application scope, and in summary, the content of the present specification should not be construed as a limitation to the present application.

Claims (20)

1. The shake compensation device is characterized by comprising a stator group and a rotor group, wherein the stator group is used for driving the rotor group to move, the rotor group is used for being fixedly connected with an imaging unit, the imaging unit comprises a sensor circuit board and an imaging sensor, the imaging sensor is provided with a mounting surface and an imaging surface which are opposite, the mounting surface is connected with the sensor circuit board, and the stator group and the rotor group are arranged on one side, opposite to the imaging surface, of the sensor circuit board.

2. The shake compensation apparatus according to claim 1, wherein the stator group is disposed between the imaging unit and the mover group, or the stator group is disposed on a side of the mover group facing away from the imaging unit;

or the like, or, alternatively,

the stator group comprises a first stator group and a second stator group, the first stator group is arranged between the imaging unit and the rotor group, and the second stator group is arranged on one side of the rotor group back to the imaging unit.

3. The jitter compensating apparatus of claim 2, wherein the stator pack includes a magnetic member and a stator mounting plate, the magnetic member being mounted on the stator mounting plate; the rotor set comprises an electromagnet and a rotor mounting plate, and the electromagnet is mounted on the rotor mounting plate.

4. A shake compensation apparatus according to claim 3, wherein the magnetic member includes a first magnetic portion and a second magnetic portion, the electromagnet includes a first coil portion and a second coil portion, the first magnetic portion and the first coil portion are opposed, the second magnetic portion and the second coil portion are opposed, the first magnetic portion is for driving the first coil portion to move in a first straight line, the second magnetic portion is for driving the second coil portion to move in a second straight line; the first line and the second line are perpendicular.

5. A shake compensating apparatus according to claim 4, wherein the number of the first coil portions is at least two, at least two of the first coil portions being arranged in parallel to the first straight line; and/or the presence of a gas in the gas,

the number of the second coil parts is at least two, and at least two of the second coil parts are arranged in parallel to the second straight line.

6. The jitter compensating apparatus of claim 5, wherein the current flow directions of at least two of the first coil portions are not exactly the same, and the first magnetic portion drives adjacent ones of the at least two first coil portions to move in opposite directions to rotate the mover assembly; the current flow directions of at least two second coil parts are not completely the same, and the second magnetic part drives the adjacent second coil parts of the at least two second coil parts to move along opposite directions so as to drive the rotor set to rotate.

7. The shake compensation apparatus according to claim 4, wherein the number of the first magnetic portions is at least one, at least one of the first magnetic portions being arranged in parallel with the first straight line; and/or the presence of a gas in the gas,

the number of the second magnetic parts is at least two, and the at least two second magnetic parts are arranged in parallel to the second straight line.

8. The shake compensation apparatus according to claim 7, wherein the first magnetic part and/or the second magnetic part comprises at least two first magnets and at least one second magnet, the first magnets having a larger width than the second magnets, the second magnets being arranged alternately with the first magnets, the first magnets and the second magnets having different magnetizing directions; the magnetizing directions of the first magnet and the second magnet are mutually vertical, and the first magnet and the second magnet are alternately arranged along the width direction of the first magnet and the second magnet; the magnetizing directions of the adjacent first magnets are opposite, and the magnetizing directions of the adjacent second magnets are opposite; the magnetizing direction of the first magnet is perpendicular to the plane of the imaging unit, and the magnetizing direction of the second magnet is parallel to the plane of the imaging unit.

9. The jitter compensating apparatus of claim 7, wherein when the number of the stator groups is two, the first magnetic portions of the first stator group are the same in number and opposite in position to the first magnetic portions of the second stator group; and/or the number of the second magnetic parts of the first stator group is the same as that of the second magnetic parts of the second stator group, and the positions of the second magnetic parts correspond to those of the second stator group.

10. The shake compensation apparatus according to claim 3, further comprising a position detection unit for detecting a displacement of the imaging unit; the number of the position detection units is three or more.

11. The shake compensation apparatus according to claim 10, wherein the position detection unit includes a position sensor for detecting a magnetic field of the magnetic member to obtain the displacement of the moving group; the position detection unit further comprises a reference magnetic part, and the reference magnetic part provides a reference magnetic field for the position sensor.

12. The jitter compensating apparatus of claim 11, wherein one of the reference magnetic member and the position sensor is mounted on the stator mounting plate, and the other is mounted on the mover mounting plate, the reference magnetic member corresponding to the position sensor; the magnetizing direction of the reference magnetic piece is parallel to the plane of the imaging unit.

13. The jitter compensating apparatus of claim 10, wherein each of the position detecting units comprises two or more hall magnets, and the two or more hall magnets are arranged in parallel and have opposite polarities between adjacent hall magnets.

14. The jitter compensating apparatus of claim 2, wherein the first stator set and the second stator set are fixedly connected by a stator connecting member, the moving set defines a limiting hole, the stator connecting member passes through the limiting hole, and when the moving set moves relative to the first stator set and the second stator set, a peripheral sidewall of the limiting hole contacts the stator connecting member to limit the displacement of the moving set.

15. The jitter compensating apparatus of claim 14, wherein the stator connector has a buffer structure at an outer periphery thereof, the buffer structure being configured to buffer an impact of the stator connector with a sidewall of the stopper hole.

16. The jitter compensating apparatus of claim 1, wherein a support is provided between the mover group and the stator group, and the mover group is moved relative to the stator group by the support.

17. The jitter compensating apparatus of claim 16, wherein a tension member is connected between the moving member group and the stator group, the tension member being used to tension the moving member group and the stator group so that the moving member group and the stator group are always in contact with the supporting body; stator group is equipped with the through-hole, stator group dorsad one side surface of active cell group is equipped with the support, the one end of tensioning piece with the leg joint, the other end passes the through-hole with active cell group connects.

18. A jitter compensating apparatus as claimed in claim 16, wherein said support comprises balls, and wherein ball pads are provided on said stator pack and said mover pack, said balls rolling on said ball pads.

19. An optical device comprising an imaging unit and a shake compensation device according to any one of claims 1 to 18, the shake compensation device being provided on a side of the imaging unit facing away from an imaging surface.

20. A camera comprising a body and an optical device according to claim 19, the optical device being disposed in the body, the optical device comprising an imaging unit and a shake compensation device, the shake compensation device being disposed on a side of the imaging unit facing away from an imaging surface.

Images