CN118226685A

CN118226685A - Anti-shake structure and image pickup apparatus

Info

Publication number: CN118226685A
Application number: CN202410249419.4A
Authority: CN
Inventors: 刘辉; 邱盛平; 王浩; 李昆; 吴恙
Original assignee: Union Optech Co Ltd
Current assignee: Union Optech Co Ltd
Priority date: 2024-03-05
Filing date: 2024-03-05
Publication date: 2024-06-21

Abstract

The invention discloses an anti-shake structure and image pickup equipment, wherein the anti-shake structure comprises a bottom plate, a cover plate, a moving group, a driving mechanism and an electric control device, wherein the moving group is movably arranged between the bottom plate and the cover plate and comprises a mounting seat and a photosensitive chip mounted on the mounting seat; the driving mechanism comprises a plurality of magnetic driving components, each magnetic driving component comprises two magnets which are respectively arranged on a bottom plate and a cover plate, and a driving coil which is arranged on a mounting seat and is positioned between the two magnets, so that shake can be corrected transversely and longitudinally by an optical compensation method, the magnetic driving mechanism can also rotate to correct shake in the circumferential rotation direction, a position detection part in an electric control device is arranged in an area on the outer side of the driving coil, the detection magnets are arranged on the bottom plate and correspond to the position detection part, and the position detection part is positioned in a magnetic field generated by the detection magnets and is not interfered by the magnetic field generated by the magnets, so that the feedback displacement quantity can be accurate, and a high-precision anti-shake structure capable of covering various application scenes is provided.

Description

Anti-shake structure and image pickup apparatus

Technical Field

The present invention relates to the field of lens design, and in particular, to an anti-shake structure and an image pickup apparatus.

Background

In the fields of digital cameras, in-vehicle lenses, monitoring lenses, and the like, vibration is often generated in optical devices. The shake of the lens can cause the shake of the picture, and a clear image cannot be captured. For cameras, anti-shake at photographing is classified into optical anti-shake and electronic anti-shake, which is a technique of counteracting image blur caused by camera shake by adjusting the position of a lens or a sensor. Optical anti-shake systems typically use mechanical devices or moving elements around the camera lens or sensor that adjust the position of the lens or sensor in real time as the camera shakes to maintain image stability. Sensor anti-shake is a technique that uses information inside an image sensor to detect camera shake or motion and counteracts image shake by adjusting pixel positions on the sensor. Sensor anti-shake does not involve physical movement of the lens or sensor, but relies on image processing algorithms to process image data to achieve image stabilization. The specific principle is that the gyroscope in the lens detects the micro movement of the camera, then the information is transmitted to the processor, the processor calculates the amount to be compensated, the optical compensation method is adopted to correct the shake, the lens moves reversely to compensate the amount of the shake, the light path is changed, and the imaged picture is consistent with the picture before the shake.

Disclosure of Invention

The invention mainly aims to provide an anti-shake structure and image pickup equipment, and aims to provide a high-precision anti-shake structure capable of covering various application scenes.

In order to achieve the above object, the present invention provides an anti-shake structure for a lens, the anti-shake structure comprising:

A bottom plate;

The cover plate is arranged on one side of the bottom plate;

the movable group is movably arranged between the bottom plate and the cover plate and is arranged at intervals with the bottom plate and the cover plate, and comprises an installation seat and a photosensitive chip installed on the installation seat;

The driving mechanism comprises at least three magnetic driving assemblies, wherein one magnetic driving assembly is used for driving the movable group to move transversely, the other two magnetic driving assemblies are arranged at intervals transversely and are used for driving the movable group to move longitudinally, each magnetic driving assembly comprises two magnets which are respectively arranged on the bottom plate and the cover plate and are oppositely arranged, and driving coils which are arranged on the mounting seat and are positioned between the two magnets, and the three driving coils are arranged in parallel so as to be independently controlled; and

The electric control device comprises a position detection device, wherein the position detection device comprises a position detection part and a detection magnet, the position detection part is fixed with the mounting seat and is positioned in the area outside the driving coil, and the detection magnet is arranged on the bottom plate and corresponds to the position detection part.

Optionally, the mounting seat is provided with a plurality of mounting holes in a penetrating manner, and each mounting hole is used for mounting the corresponding driving coil;

the electric control device further comprises a photosensitive element soft row, the photosensitive element soft row is provided with a connecting row section, the connecting row section is positioned on one side of the mounting hole, which faces the bottom plate, and is connected with the driving coil, and one side of the connecting row section, which faces the bottom plate, is provided with the position detection part.

Optionally, the detecting magnet includes a first detecting magnet and two second detecting magnets disposed at intervals in a lateral direction, the first detecting magnet is located at one side of the two second detecting magnets in a longitudinal direction, correspondingly, the position detecting portion includes a plurality of position detecting elements including a first position detecting element and two second position detecting elements disposed at intervals in the lateral direction, the first position detecting element is located at one side of the two second position detecting elements in the longitudinal direction, the first position detecting element is disposed corresponding to the first detecting magnet, and the two second position detecting elements are disposed corresponding to the two second detecting magnets, respectively.

Optionally, each driving coil includes two sides disposed opposite to each other;

Each magnet comprises two magnetic strips which are respectively and correspondingly arranged with two side edges of the driving coil so as to form a magnetic circuit gap between the two magnetic strips which are respectively arranged on the bottom plate and the cover plate and are oppositely arranged, and the two side edges of the driving coil are respectively arranged in the corresponding magnetic circuit gap.

Optionally, the anti-shake structure further includes a plurality of rolling parts, and each rolling part is arranged between the mounting seat and the bottom plate in a cushioning manner.

Optionally, the anti-shake structure further includes a plurality of limit posts arranged at intervals along the circumferential direction of the bottom plate, and two ends of each limit post are respectively fixed with the bottom plate and the cover plate;

the installation seat is arranged on the inner sides of the plurality of limit posts, a plurality of notches are formed in the periphery of the installation seat, and the plurality of notches and the plurality of limit posts are respectively and correspondingly arranged, so that when the installation seat moves transversely or longitudinally, the plurality of limit posts can limit the movement of the installation seat.

Optionally, the anti-shake structure further comprises a buffer sleeve sleeved on the limiting column.

Optionally, the material of the bottom plate and/or the cover plate is magnetic; and/or

Each magnet is adhered to the corresponding base plate or cover plate.

Optionally, the bottom plate is provided as a magnetic material;

The anti-shake structure further comprises a magnetic attraction structure connected with the mounting seat, the magnetic attraction structure comprises a first magnetic attraction part and at least one second magnetic attraction part, wherein the first magnetic attraction part is used for magnetically attracting the bottom plate, and the second magnetic attraction part is arranged in the area inside the inner ring of the driving coil so as to magnetically attract the magnet arranged on the bottom plate.

The present invention also provides an image pickup apparatus including an anti-shake structure including:

A bottom plate;

The cover plate is arranged on one side of the bottom plate;

According to the technical scheme, when the driving coils for driving the movable group to move in the transverse direction are electrified, the compensation of the movable group in the transverse direction is realized, when at least one driving coil for driving the movable group to move in the longitudinal direction is electrified, the compensation of the movable group in the longitudinal direction is realized, because the two magnetic driving assemblies distributed at intervals in the transverse direction can both drive the movable group to move in the longitudinal direction, by controlling the current directions of the two driving coils, the directions of driving forces generated by the two magnetic driving assemblies are the same or opposite, when the directions of driving forces generated by the two magnetic driving assemblies are the same, the movement of the movable group in the longitudinal direction can be realized, and when the directions of driving forces generated by the two magnetic driving assemblies are opposite, the movement group rotation can be realized. In addition, the position detecting part is fixedly arranged on the mounting seat and is arranged in an area outside the driving coil, the detecting magnet is arranged on the bottom plate and corresponds to the position detecting part, and the position detecting part is positioned in a magnetic field generated by the detecting magnet and is staggered with the magnet, so that the position detecting part is not interfered by the magnetic field of the driving coil, and the accurate feedback displacement can be realized, so that the high-precision anti-shake structure capable of covering various application scenes is provided.

Drawings

In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings that are required in the embodiments or the description of the prior art will be briefly described, and it is obvious that the drawings in the following description are only some embodiments of the present invention, and other drawings may be obtained according to the structures shown in these drawings without inventive effort for a person skilled in the art.

FIG. 1 is a schematic perspective view of an anti-shake structure according to an embodiment of the present invention;

FIG. 2 is a perspective view of the anti-shake structure of FIG. 1 from another perspective;

FIG. 3 is a perspective view of the base plate, magnet and sensing magnet of FIG. 1;

FIG. 4 is a perspective view of the moving group and the driving coil of FIG. 1;

FIG. 5 is a schematic perspective view of the other view of FIG. 4;

fig. 6 is a perspective view of the cover plate and the magnet of fig. 1.

Reference numerals illustrate:

the achievement of the objects, functional features and advantages of the present invention will be further described with reference to the accompanying drawings, in conjunction with the embodiments.

Detailed Description

The following description of the embodiments of the present invention will be made clearly and fully with reference to the accompanying drawings, in which it is evident that the embodiments described are only some, but not all embodiments of the invention. All other embodiments, which can be made by those skilled in the art based on the embodiments of the invention without making any inventive effort, are intended to be within the scope of the invention.

It should be noted that, if directional indications (such as up, down, left, right, front, and rear … …) are included in the embodiments of the present invention, the directional indications are merely used to explain the relative positional relationship, movement conditions, etc. between the components in a specific posture (as shown in the drawings), and if the specific posture is changed, the directional indications are correspondingly changed.

In addition, if there is a description of "first", "second", etc. in the embodiments of the present invention, the description of "first", "second", etc. is for descriptive purposes only and is not to be construed as indicating or implying a relative importance or implicitly indicating the number of technical features indicated. Thus, a feature defining "a first" or "a second" may explicitly or implicitly include at least one such feature. In addition, the meaning of "and/or" as it appears throughout includes three parallel schemes, for example "A and/or B", including the A scheme, or the B scheme, or the scheme where A and B are satisfied simultaneously. In addition, the technical solutions of the embodiments may be combined with each other, but it is necessary to base that the technical solutions can be realized by those skilled in the art, and when the technical solutions are contradictory or cannot be realized, the combination of the technical solutions should be considered to be absent and not within the scope of protection claimed in the present invention.

In the fields of digital cameras, in-vehicle lenses, monitoring lenses, and the like, vibration is often generated in optical devices. The shake of the lens can cause the shake of the picture, and a clear image cannot be captured. For the camera, the anti-shake during photographing is divided into optical anti-shake and electronic anti-shake, in principle, the micro-movement of the camera is detected through a gyroscope in a lens, then information is transmitted to a processor, the processor calculates the amount to be compensated, the amount of shake is corrected by adopting an optical compensation method, the amount of picture shake is more or less, and the lens moves reversely to compensate the amount of picture shake, so that the optical path is changed, and the imaged picture is consistent with the picture before shake. The anti-shake lens in the prior art has complex structure, lag reaction and large power consumption, and simultaneously causes the whole volume and the weight of the lens to be large, thus being not applicable to a complex and precise lens optical system.

In order to solve the above-mentioned problems, the present invention provides an anti-shake structure, and fig. 1 is a schematic perspective view of an embodiment of the anti-shake structure provided by the present invention; FIG. 2 is a perspective view of the anti-shake structure of FIG. 1 from another perspective; FIG. 3 is a perspective view of the base plate, magnet and sensing magnet of FIG. 1; FIG. 4 is a perspective view of the moving group and the driving coil of FIG. 1; FIG. 5 is a schematic perspective view of the other view of FIG. 4; fig. 6 is a perspective view of the cover plate and the magnet of fig. 1.

Referring to fig. 3 to 6, the anti-shake structure 100 includes a base plate 1, a cover plate 2, a moving group 3, a driving mechanism and an electric control device 6, wherein the cover plate 2 is disposed on one side of the base plate 1; the moving group 3 is movably arranged between the bottom plate 1 and the cover plate 2 and is arranged at intervals from the bottom plate 1 and the cover plate 2, and the moving group 3 comprises a mounting seat 31 and a photosensitive chip 32 mounted on the mounting seat 31; the driving mechanism comprises at least three magnetic driving components 4, wherein one magnetic driving component 4 is used for driving the movable group 3 to move transversely, the other two magnetic driving components 4 are arranged at intervals transversely and are used for driving the movable group 3 to move longitudinally, each magnetic driving component 4 comprises two magnets which are respectively arranged on the bottom plate 1 and the cover plate 2 and are oppositely arranged, and a driving coil 42 which is arranged on the mounting seat 31 and is positioned between the two magnets, and the three driving coils 42 are arranged in parallel so as to be independently controlled; the electric control device 6 includes a position detection device, which includes a position detection portion and a detection magnet, the position detection portion is fixed to the mounting seat 31 and located in an area outside the driving coil 42, and the detection magnet is disposed on the bottom plate 1 and corresponds to the position detection portion.

It should be noted that, the driving mode of the magnetic driving assembly 4 is as follows: the driving coil 42 is disposed between two magnets disposed opposite to each other, and the polarities of the two magnets on the sides close to each other are opposite to each other, so that a magnetic field perpendicular to the driving coil 42 is generated, and according to the left hand rule, the left hand is placed in the magnetic field, so that the directions of the four fingers are consistent with the current direction in the wire, and the direction pointed by the thumb is the force direction. Therefore, when the driving coil 42 is energized with current in different directions, the driving coil 42 can move in the lateral direction or the forward and reverse directions in the longitudinal direction, so as to drive the mounting seat 31 to drive the photosensitive chip 32 to adjust and move, thereby realizing compensation.

It will be appreciated that in the magnetic drive assembly 4 for driving the moving group 3 in a lateral direction, the drive coil 42 thereof has a straight wire extending in a longitudinal direction, and when the drive coil 42 is energized, an ampere force in a lateral direction can be generated according to the left hand rule; in the magnetic drive assembly 4 for driving the moving group 3 to move in the longitudinal direction, the drive coil 42 has a straight wire extending in the transverse direction, and when the drive coil 42 is energized, an ampere force in the longitudinal direction can be generated according to the left-hand rule.

Because two magnetic force driving components 4 which are distributed at intervals in the transverse direction can drive the moving group 3 to move longitudinally, the directions of the driving forces generated by the two magnetic force driving components 4 can be controlled to be the same or opposite by controlling the current directions of the two driving coils 42, when the directions of the driving forces generated by the two magnetic force driving components 4 are the same, the moving group 3 can move longitudinally, and when the directions of the driving forces generated by the two magnetic force driving components 4 are opposite, the moving group 3 can rotate.

It should be noted that the photosensitive chip 32 may be configured as a CMOS or a CCD. The "transverse" and "longitudinal" referred to in the present document are merely expressed as two directions disposed to intersect at about 90 °, and when the anti-shake structure 100 shown in the drawings is rotated by 90 °, the magnetic driving assembly 4 in the previous "transverse" may be described as the magnetic driving assembly 4 in the "longitudinal" direction, and thus, the layout form of the magnetic driving assembly 4 is not limited to the one described above.

In another embodiment, in order to realize the rotation of the moving group 3, two magnetic driving assemblies 4 that are all used for driving the moving group 3 to move along the transverse direction may be arranged at intervals in the longitudinal direction, and when two magnetic driving assemblies 4 generate a force in the opposite direction along the transverse direction after being electrified, the moving group 3 may be driven to rotate as well.

In yet another embodiment, the number of the magnetic driving assemblies 4 may be four, or even more, the four magnetic driving assemblies 4 may be two arranged at intervals in the lateral direction, two arranged at intervals in the longitudinal direction, and the two magnetic driving assemblies 4 arranged at intervals in the longitudinal direction or the lateral direction may be arranged side by side on the same straight line or may be staggered.

The two magnetic driving assemblies 4 for driving the moving group 3 to move along the transverse direction may be disposed on the same side, or may be separately disposed on two sides of the base plate 1 disposed opposite to each other in the transverse direction or the longitudinal direction, and of course, the number of the magnetic driving assemblies 4 is not limited to the above examples, and the arrangement of the magnetic driving assemblies 4 is not limited to the above examples, and other modifications are possible by those skilled in the art in light of the technical spirit of the present embodiment, so long as the functions and effects achieved by the present embodiment are the same as or similar to those achieved by the present embodiment, and all the modifications are covered in the protection scope of the present embodiment.

It should be noted that, in the prior art, optical anti-shake is generally involved, and adverse effects caused by camera shake are offset by adjusting positions of lenses in a longitudinal direction and a lateral direction, so that the anti-shake structure 100 in the prior art involves only two-dimensional adjustment.

In the technical solution provided in the present application, when the driving coil 42 for driving the moving group 3 to move in the transverse direction is energized, compensation of the moving group 3 in the transverse direction is achieved, when at least one of the driving coils 42 for driving the moving group 3 to move in the longitudinal direction is energized, compensation of the moving group 3 in the longitudinal direction is achieved, both the two magnetic driving assemblies 4 arranged at intervals in the transverse direction can drive the moving group 3 to move in the longitudinal direction, by controlling the current directions of the two driving coils 42, whether the directions of the driving forces generated by the two magnetic driving assemblies 4 are the same or opposite can be controlled, when the directions of the driving forces generated by the two magnetic driving assemblies 4 are the same, rotation of the moving group 3 can be achieved, and when the directions of the driving forces generated by the two magnetic driving assemblies 4 are opposite, the shake can be corrected by the optical compensation method in the transverse direction and the longitudinal direction, and the shake can also be corrected in the circumferential rotation direction, and the shake preventing structure 100 can not only be applied to the optical shake preventing technology, but also can be applied to the shake preventing technology. In addition, the position detecting portion is fixedly mounted on the mounting seat 31 and is disposed in an area outside the driving coil 42, the detecting magnet is disposed on the bottom plate 1 and is disposed corresponding to the position detecting portion, and the position detecting portion is disposed in a magnetic field generated by the detecting magnet and is offset from the magnet, so that the position detecting portion is not interfered by the magnetic field of the driving coil 42, and a precise feedback displacement amount can be provided, so that the high-precision anti-shake structure 100 capable of covering various application scenes can be provided.

Specifically, in the present embodiment, the mounting seat 31 is perforated with a plurality of mounting holes 31b, and each mounting hole 31b is configured to mount the corresponding driving coil 42; the electronic control device 6 further comprises a soft photosensitive element row 63, the soft photosensitive element row 63 is provided with a connecting row section 631, the connecting row section 631 is located at one side of the mounting hole 31b facing the bottom plate 1 and is connected with the driving coil 42, and one side of the connecting row section 631 facing the bottom plate 1 is provided with the position detection part.

The position detecting part is positioned in a magnetic field generated by the corresponding detecting magnet, when the lens shakes, the moving group 3 moves relatively to the bottom plate 1 and the cover plate 2, the intensity of the magnetic field around the position detecting part in the magnetic field changes, corresponding voltage signals are generated when the magnetic field changes, and the relative displacement between objects can be calculated through signal processing and analysis of the output voltage signals. By the arrangement, the position detection part can be positioned in the magnetic field generated by the detection magnet in a short distance, and the position detection part can sensitively reflect the intensity change of the surrounding magnetic field, so that accurate measurement is realized.

Specifically, the detection magnet includes a first detection magnet 611 and two second detection magnets 612 disposed at intervals in the lateral direction, the first detection magnet 611 is located at one side of the two second detection magnets 612 in the longitudinal direction, and correspondingly, the position detection portion includes a plurality of position detection elements including a first position detection element 621 and two second position detection elements 622 disposed at intervals in the lateral direction, the first position detection element 621 is located at one side of the two second position detection elements 622 in the longitudinal direction, the first position detection element 621 is disposed corresponding to the first detection magnet 611, and the two second position detection elements 622 are disposed corresponding to the two second detection magnets 612, respectively. In this way, the first position detecting element 621 can accurately detect the displacement of the moving group 3 in the lateral direction, each of the second position detecting elements 622 can accurately detect the displacement of the moving group 3 in the longitudinal direction, and when the moving group 3 rotates, the two second position detecting elements 622 can accurately detect the rotation angle of the moving group 3.

The position detecting element may be a hall element, a TMR (tunnel magnetoresistance), or the like, and other possible detecting elements may be used, and may be specifically determined according to the actual situation, which is not limited in the embodiment of the present specification.

In this embodiment, referring to fig. 3 and 4, each of the driving coils 42 includes two opposite side edges 421; each of the magnets 41 includes two magnetic strips 411 respectively corresponding to two side edges 421 of the driving coil 42, so as to form a magnetic path gap between the two magnetic strips 411 respectively disposed on the bottom plate 1 and the cover plate 2 and disposed opposite to each other, and the two side edges 421 of the driving coil 42 are respectively disposed in the corresponding magnetic path gaps. In this way, by providing four magnetic strips 411, two magnetic circuit gaps are formed, so that two side edges 421 of each driving coil 42 are simultaneously located in the magnetic fields of the two magnetic circuit gaps, thereby enhancing the driving force of the magnetic force driving each driving coil 42, and enabling the moving group 3 to quickly respond to realize compensation.

Further, since the driving coil 42 is disposed between the two magnets 41, in order to avoid friction caused by direct contact between the driving coil 42 and the two magnets 41, a certain gap exists between the two magnets 41 of the driving coil 42, so that the driving coil 42 is disposed between the two magnets 41 in a floating manner, and is likely to be unstable during movement, and in order to ensure stability of the movement of the moving group 3 on a plane while reducing friction as much as possible, in this embodiment, the anti-shake structure 100 further includes a plurality of rolling parts 5, and each rolling part 5 is disposed between the mounting seat 31 and the bottom plate 1 in a pad manner. Preferably, three rolling parts 5 are provided, and three rolling parts 5 form a plane, so that the mounting seat 31 can be stably supported on the bottom plate 1. The rolling portion 5 may be a ball, a roller, or the like. Preferably, a ball is provided.

In this embodiment, referring to fig. 4, a receiving groove 31a with an opening facing the bottom plate 1 is provided on a side of the mounting seat 31 facing the bottom plate 1, the rolling portion 5 may be accommodated in the receiving groove 31a, and at least a portion of the rolling portion 5 may protrude out of a notch of the receiving groove 31a, so that the rolling portion 5 may abut against the bottom plate 1.

In other embodiments, each rolling portion 5 may also be arranged between the mounting seat 31 and the cover plate 2. The above-mentioned effect of reducing friction as much as possible while ensuring the stability of the movement of the moving group 3 on the plane can be achieved.

In this embodiment, referring to fig. 3 and 4, the anti-shake structure 100 further includes a plurality of limiting posts 71 disposed at intervals along the circumferential direction of the base plate 1, and two ends of each of the limiting posts 71 are respectively fixed to the base plate 1 and the cover plate 2; the mounting seat 31 is disposed at the inner sides of the plurality of limiting columns 71, a plurality of notches 31c are disposed at the periphery of the mounting seat 31, and the plurality of notches 31c and the plurality of limiting columns 71 are disposed corresponding to each other, so that when the mounting seat 31 moves in the transverse direction or the longitudinal direction, the plurality of limiting columns 71 can limit the movement of the mounting seat 31. In this way, when the movement group 3 shakes severely, the plurality of limit posts 71 limit the travel of the movement group 3.

Further, in order to avoid the collision between the mounting seat 31 of the moving group 3 and the limiting post 71, a large impact force is generated, and in this embodiment, the anti-shake structure 100 further includes a buffer sleeve 72 sleeved on the limiting post 71. The cushion cover 72 may be a rubber cover, but may also be a foam cover, etc., and may be specifically determined according to practical situations, which is not limited in the embodiment of the present disclosure.

In this embodiment, the material of the bottom plate 1 and/or the cover plate 2 is magnetic; and/or each magnet is adhered to the corresponding base plate 1 or cover plate 2. So arranged, the magnet can be directly fixed on the bottom plate 1 or the cover plate 2 by magnetic attraction. The installation form and the procedure are simpler; meanwhile, the material of the bottom plate 1 and/or the cover plate 2 is magnetic, so that the magnetic field strength can be increased, and the driving coil 42 can generate driving force better in an induction way.

Of course, in order to make the magnets be more stably fixed on the bottom plate 1 and/or the cover plate 2, each magnet may be adhered to the corresponding bottom plate 1 or the cover plate 2 by dispensing.

Referring to fig. 3 and 4, in an embodiment, the base plate 1 is made of a magnetic material; the anti-shake structure 100 further includes a magnetic attraction structure 8 connected to the mounting base 31, where the magnetic attraction structure 8 includes a first magnetic attraction portion 81 for magnetically attracting the base plate 1. The arrangement is such that the adsorption effect can be generated between the base plate 1 and the mounting seat 31 through the magnetic force, so that the moving group 3 can be stably supported on the balls, and the stability is good. The first magnetic part 81 may be a magnetic sheet, or the like, and may be specifically determined according to practical situations, which is not limited in the embodiment of the present disclosure.

Further, referring to fig. 4, the magnetic attraction structure 8 further includes at least one second magnetic attraction portion 82, where the second magnetic attraction portion 82 is disposed in a region inside the inner ring of the driving coil 42, so as to magnetically attract the magnet disposed on the base plate 1. In this way, by magnetically attracting the second magnetic attraction portion 82 and the magnet fixed on the base plate 1, a stronger adsorption effect can be further generated, so that the moving group 3 has better stability. The first magnetic part 81 includes a plurality of magnetic pieces, and the area inside the inner ring of each driving coil 42 may be provided with one magnetic piece, which may be of any other form, and the second magnetic part 82 may be specifically determined according to practical situations, which is not limited in this embodiment of the present disclosure.

The present invention also provides an image capturing apparatus, which may be a camera, a vehicle-mounted lens, etc., and includes the above-mentioned anti-shake structure 100, and further includes a lens barrel, a lens, etc., because the image capturing apparatus includes the above-mentioned anti-shake structure 100, the specific structure of the anti-shake structure 100 refers to the above-mentioned embodiments, and because the anti-shake structure 100 of the present image capturing apparatus adopts all the technical solutions of all the above-mentioned embodiments, it has at least all the beneficial effects brought by the technical solutions of the above-mentioned embodiments, and will not be described in detail herein.

The foregoing description is only of the preferred embodiments of the present invention and is not intended to limit the scope of the invention, and all equivalent structural changes made by the description of the present invention and the accompanying drawings or direct/indirect application in other related technical fields are included in the scope of the invention.

Claims

1. An anti-shake structure for a lens, the anti-shake structure comprising:

A bottom plate;

The cover plate is arranged on one side of the bottom plate;

2. The anti-shake structure of claim 1, wherein the mounting base is provided with a plurality of mounting holes therethrough, each of the mounting holes being configured to mount a corresponding one of the driving coils;

3. The anti-shake structure according to claim 1 or 2, wherein the detection magnet includes a first detection magnet and two second detection magnets arranged at an interval in a lateral direction, the first detection magnet being located on one side of the two second detection magnets in a longitudinal direction, and correspondingly, the position detection section includes a plurality of position detection elements including a first position detection element located on one side of the two second position detection elements in the longitudinal direction, and two second position detection elements arranged at an interval in the lateral direction, the first position detection element being arranged in correspondence with the first detection magnet, the two second position detection elements being respectively arranged in correspondence with the two second detection magnets.

4. The anti-shake structure of claim 1, wherein each of the drive coils includes two sides disposed opposite to each other;

5. The anti-shake structure of claim 1, further comprising a plurality of rolling portions, each of the rolling portions being interposed between the mounting base and the base plate.

6. The anti-shake structure of claim 1, further comprising a plurality of limit posts arranged at intervals along the circumferential direction of the base plate, wherein both ends of each limit post are respectively fixed with the base plate and the cover plate;

7. The anti-shake structure of claim 5 further comprising a buffer sleeve over the stopper post.

8. The anti-shake structure of claim 1, wherein the material of the base plate and/or the cover plate is a magnetic material; and/or

Each magnet is adhered to the corresponding base plate or cover plate.

9. The anti-shake structure of claim 1, wherein the base plate is provided as a magnetic material;

10. An image pickup apparatus comprising the anti-shake structure according to any one of claims 1 to 9.