CN114755872B - Driving device with internal focusing and anti-shake functions, imaging device and electronic equipment - Google Patents
Driving device with internal focusing and anti-shake functions, imaging device and electronic equipment Download PDFInfo
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- CN114755872B CN114755872B CN202210265321.9A CN202210265321A CN114755872B CN 114755872 B CN114755872 B CN 114755872B CN 202210265321 A CN202210265321 A CN 202210265321A CN 114755872 B CN114755872 B CN 114755872B
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- 238000003384 imaging method Methods 0.000 title claims description 3
- 230000003287 optical effect Effects 0.000 claims abstract description 41
- 230000007246 mechanism Effects 0.000 claims abstract description 16
- 239000000725 suspension Substances 0.000 claims abstract description 8
- 239000002184 metal Substances 0.000 claims description 56
- 238000013461 design Methods 0.000 abstract description 4
- 230000007547 defect Effects 0.000 abstract 1
- 239000000758 substrate Substances 0.000 description 5
- 235000014676 Phragmites communis Nutrition 0.000 description 4
- 230000000694 effects Effects 0.000 description 4
- 238000009434 installation Methods 0.000 description 4
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- 244000273256 Phragmites communis Species 0.000 description 3
- 238000010586 diagram Methods 0.000 description 3
- 230000017525 heat dissipation Effects 0.000 description 2
- 238000001746 injection moulding Methods 0.000 description 2
- 239000000463 material Substances 0.000 description 2
- 230000002035 prolonged effect Effects 0.000 description 2
- 238000003466 welding Methods 0.000 description 2
- 238000007792 addition Methods 0.000 description 1
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Classifications
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- G—PHYSICS
- G03—PHOTOGRAPHY; CINEMATOGRAPHY; ANALOGOUS TECHNIQUES USING WAVES OTHER THAN OPTICAL WAVES; ELECTROGRAPHY; HOLOGRAPHY
- G03B—APPARATUS OR ARRANGEMENTS FOR TAKING PHOTOGRAPHS OR FOR PROJECTING OR VIEWING THEM; APPARATUS OR ARRANGEMENTS EMPLOYING ANALOGOUS TECHNIQUES USING WAVES OTHER THAN OPTICAL WAVES; ACCESSORIES THEREFOR
- G03B5/00—Adjustment of optical system relative to image or object surface other than for focusing
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- G—PHYSICS
- G02—OPTICS
- G02B—OPTICAL ELEMENTS, SYSTEMS OR APPARATUS
- G02B13/00—Optical objectives specially designed for the purposes specified below
- G02B13/001—Miniaturised objectives for electronic devices, e.g. portable telephones, webcams, PDAs, small digital cameras
- G02B13/0015—Miniaturised objectives for electronic devices, e.g. portable telephones, webcams, PDAs, small digital cameras characterised by the lens design
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- G—PHYSICS
- G02—OPTICS
- G02B—OPTICAL ELEMENTS, SYSTEMS OR APPARATUS
- G02B7/00—Mountings, adjusting means, or light-tight connections, for optical elements
- G02B7/02—Mountings, adjusting means, or light-tight connections, for optical elements for lenses
-
- G—PHYSICS
- G02—OPTICS
- G02B—OPTICAL ELEMENTS, SYSTEMS OR APPARATUS
- G02B7/00—Mountings, adjusting means, or light-tight connections, for optical elements
- G02B7/02—Mountings, adjusting means, or light-tight connections, for optical elements for lenses
- G02B7/04—Mountings, adjusting means, or light-tight connections, for optical elements for lenses with mechanism for focusing or varying magnification
- G02B7/09—Mountings, adjusting means, or light-tight connections, for optical elements for lenses with mechanism for focusing or varying magnification adapted for automatic focusing or varying magnification
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- G—PHYSICS
- G03—PHOTOGRAPHY; CINEMATOGRAPHY; ANALOGOUS TECHNIQUES USING WAVES OTHER THAN OPTICAL WAVES; ELECTROGRAPHY; HOLOGRAPHY
- G03B—APPARATUS OR ARRANGEMENTS FOR TAKING PHOTOGRAPHS OR FOR PROJECTING OR VIEWING THEM; APPARATUS OR ARRANGEMENTS EMPLOYING ANALOGOUS TECHNIQUES USING WAVES OTHER THAN OPTICAL WAVES; ACCESSORIES THEREFOR
- G03B13/00—Viewfinders; Focusing aids for cameras; Means for focusing for cameras; Autofocus systems for cameras
- G03B13/32—Means for focusing
- G03B13/34—Power focusing
- G03B13/36—Autofocus systems
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- G—PHYSICS
- G03—PHOTOGRAPHY; CINEMATOGRAPHY; ANALOGOUS TECHNIQUES USING WAVES OTHER THAN OPTICAL WAVES; ELECTROGRAPHY; HOLOGRAPHY
- G03B—APPARATUS OR ARRANGEMENTS FOR TAKING PHOTOGRAPHS OR FOR PROJECTING OR VIEWING THEM; APPARATUS OR ARRANGEMENTS EMPLOYING ANALOGOUS TECHNIQUES USING WAVES OTHER THAN OPTICAL WAVES; ACCESSORIES THEREFOR
- G03B30/00—Camera modules comprising integrated lens units and imaging units, specially adapted for being embedded in other devices, e.g. mobile phones or vehicles
Abstract
The invention belongs to the technical field of image pickup, and particularly relates to a driving device with internal focusing and anti-shake, an image pickup device and electronic equipment. It solves the defects of unreasonable design in the prior art. The driving device for internal focusing and anti-shake comprises a base and an active anti-shake frame connected with the base through a suspension wire; the focusing frame is positioned in the active anti-shake frame; the focusing frame is connected with the active anti-shake frame through an elastic sheet; the focusing driving mechanism is arranged between the active anti-shake frame and the focusing frame; the driven anti-shake frame is fixed at one end of the driving anti-shake frame, which is far away from the base; the driven anti-shake frame and the focusing frame are distributed in sequence along the optical axis. The application has the advantages that: OIS and large-stroke AF focusing functions are realized.
Description
Technical Field
The invention belongs to the technical field of image pickup, and particularly relates to a driving device with internal focusing and anti-shake, an image pickup device and electronic equipment.
Background
The prior art long focus OIS is formed by single OIS focusing.
The single OIS structure cannot achieve AF large-stroke, i.e. cannot simultaneously consider long focus, and is greatly limited in the long-distance focusing stroke.
Disclosure of Invention
The present invention aims to solve the above problems, and provides a driving device and a driving assembly for internal focusing and anti-shake, which can solve the above problems.
In order to achieve the above purpose, the present invention adopts the following technical scheme:
this internal focusing and anti-shake's drive arrangement includes the base, and connect in through the suspension wire initiative anti-shake frame of base, drive arrangement still includes:
the focusing frame is positioned in the active anti-shake frame; the focusing frame is connected with the active anti-shake frame through an elastic sheet;
the focusing driving mechanism is arranged between the active anti-shake frame and the focusing frame to drive the focusing frame to axially move on the optical axis;
the driven anti-shake frame is fixed at one end of the driving anti-shake frame, which is far away from the base; the driven anti-shake frame moves along a plane perpendicular to the optical axis along with the driving anti-shake frame;
the driven anti-shake frame and the focusing frame are distributed in sequence along the optical axis.
In the driving device with internal focusing and anti-shake functions, the focusing driving mechanism comprises driving magnets fixed on the inner wall of the active anti-shake frame, and focusing driving coils distributed at intervals with the driving magnets are arranged on the outer wall of the focusing frame.
In the driving device with internal focusing and anti-shake functions, the first embedded metal piece is embedded in the driving anti-shake frame, the second embedded metal piece is embedded in the driven anti-shake frame, and the first embedded metal piece and the second embedded metal piece are welded together through the exposed part.
In the driving device with focusing and anti-shake functions, the first embedded metal piece penetrates through the driving anti-shake frame in the optical axis direction, the second embedded metal piece penetrates through the driven anti-shake frame in the radial direction outwards in a plane perpendicular to the optical axis, the exposed part comprises a first exposed sub-part and a second exposed sub-part, one side, close to the driven anti-shake frame, of the first embedded metal piece is connected with the first exposed sub-part, the second embedded metal piece penetrates through the outer side of the driven anti-shake frame in the radial direction outwards to be connected with the second exposed sub-part, and the first exposed sub-part and the second exposed sub-part are fixedly connected.
In the driving device with internal focusing and anti-shake functions, the first exposed sub-portion is vertically connected with the first embedded metal piece, the first exposed sub-portion is attached to one end face of the driving anti-shake frame, which is close to the driven anti-shake frame, and the second exposed sub-portion is in contact with the first exposed sub-portion face and is welded and fixed.
In the driving device with internal focusing and anti-shake functions, a positioning hole is formed in an end face, close to the driven anti-shake frame, of the driving anti-shake frame, and a positioning pin inserted into the positioning hole is arranged in an end face, close to the driving anti-shake frame, of the driven anti-shake frame.
In the driving device with the internal focusing function and the anti-shake function, a magnet fixing step is arranged on the inner wall of the active anti-shake frame, the driving magnet is fixed on the magnet fixing step, and the driving magnet is attached to the first embedded metal piece.
In the driving device with internal focusing and anti-shake functions, one side of the driving magnet, which is close to the base, protrudes out of one end of the active anti-shake frame, which is close to the base.
In the driving device with internal focusing and anti-shake functions, an anti-shake coil group is arranged on one end face, close to the active anti-shake frame, of the base, the anti-shake coil group is distributed relative to the driving magnet, and the anti-shake coil group is matched with the driving magnet so that the active anti-shake frame moves on a plane perpendicular to the optical axis.
In the driving device with internal focusing and anti-shake functions, the base is buckled with the shell, the top of the shell is provided with the incident light hole, and the active anti-shake frame is positioned in a cavity formed by the base and the shell.
In the driving device with internal focusing and anti-shake function, one end of the driven anti-shake frame, which is far away from the driving anti-shake frame, extends out of the incident light hole.
The application also provides an image pickup device, which is provided with the driving device with the internal focusing function and the anti-shake function.
The application also provides electronic equipment, which is provided with the image pickup device.
Compared with the prior art, the application has the advantages that:
the OIS and AF focusing functions are realized, and in order to achieve a large stroke of the AF part, the AF part drives the lenses, and the weight of the movable part is only 1 lens, so that the light weight can meet the requirement of the large stroke and better reliability; in order to achieve larger stroke and anti-shake effect in the OIS part, the weight of the movable part is only 1 lens, and the light weight can meet the requirements of large stroke and better reliability; in order to achieve long-focus large-stroke of the product, the motor drives 2 lenses to achieve the long-stroke required by long-focus; meanwhile, AF focusing is arranged on the anti-shake of the OIS, so that the image pickup quality and definition can be improved.
The OIS prepositive and AF postpositive modes are reserved in the interior to form a larger focusing space so as to meet the focusing requirement of a large stroke.
The inside metalwork is utilized to connect the bare dew point, so that the high-efficiency assembly connection of the driving anti-shake frame and the driven anti-shake frame is realized, and the production product and the final shooting quality are improved.
The driving magnets are shared, so that the overall structure is further simplified, and the overall structure is more compact.
The driving magnet is magnetized by utilizing the metal piece, so that the focusing stroke is further increased.
Drawings
Fig. 1 is a schematic perspective view of an internal focusing and anti-shake driving device according to the present invention.
Fig. 2 is a schematic diagram of a driving device with internal focusing and anti-shake effects according to the present invention.
Fig. 3 is a schematic view of the cross-sectional structure along the line A-A in fig. 2.
Fig. 4 is a schematic view of the cross-sectional structure along line B-B in fig. 2.
Fig. 5 is a schematic view of the driving device provided by the invention with the casing removed.
Fig. 6 is a schematic view of a bare part structure provided by the present invention.
Fig. 7 is a schematic perspective view of an active anti-shake frame according to the present invention, in which a driving magnet is assembled.
Fig. 8 is a schematic perspective view of an active anti-shake frame according to the present invention.
Fig. 9 is a schematic view of a driven anti-shake frame according to the present invention.
Fig. 10 is a schematic view of an anti-shake driving stereoscopic structure according to the present invention.
Fig. 11 is a schematic diagram of an anti-shake driving structure according to the present invention.
Fig. 12 is a schematic structural diagram of a second embodiment provided by the present invention.
Fig. 13 is a schematic view of a third embodiment provided by the present invention.
Fig. 14 is a schematic view of a fourth embodiment provided by the present invention.
In the figure, a base 1, an anti-shake coil group 10, a focus avoidance through hole 11, a plastic substrate 12, a suspension wire 2, a driving anti-shake frame 3, a first embedded metal piece 30, a positioning hole 31, a magnet fixing step 32, a focus frame 4, a focus optical component 4a, a focus driving mechanism 5, a driving magnet 50, a focus driving coil 51, a driven anti-shake frame 6, a second embedded metal piece 60, a positioning pin 61, an anti-shake optical component 6a, an exposed part 7, a first exposed sub-part 70, a second exposed sub-part 71, a housing 8, an incident light hole 80, a spring piece 9, and a corner reed 90.
Detailed Description
The following are specific embodiments of the invention and the technical solutions of the invention will be further described with reference to the accompanying drawings, but the invention is not limited to these embodiments.
As shown in fig. 1, XYZ three-axis coordinates in the present embodiment are coordinates of a conventional meaning. OIS is anti-shake, and AF is in focus.
Example 1
As shown in fig. 1-4, the driving device for focusing and anti-shake in the device comprises a base 1, a driving anti-shake frame 3, a focusing frame 4, a focusing driving mechanism 5 and a driven anti-shake frame 6, wherein a focusing avoidance through hole 11 is formed in the central area of the base 1, and the base 1 plays roles in bearing and mounting positioning.
As shown in fig. 3 and 5, the active anti-shake frame 3 is connected to the base 1 through a plurality of suspension wires 2, and in a preferred embodiment, the suspension wires 2 of the embodiment have four and are distributed at four angles of the active anti-shake frame 3 and four corners of the base 1, so as to realize that the active anti-shake frame 3 moves on a plane perpendicular to the optical axis, that is, to achieve the OIS purpose.
The focusing frame 4 is positioned in the active anti-shake frame 3; and the focusing frame 4 and the active anti-shake frame 3 are connected through the elastic sheet 9. The two spring plates 9 are arranged on one end face of the focusing frame 4 along the optical axis, the other end face of the focusing frame 4 along the optical axis is arranged on the other end face, and the two corresponding end faces of the spring plates 9 and the active anti-shake frame 3 are connected, so that focusing movement of the focusing frame 4 in the axial direction of the optical axis can be realized in this way.
And a spring plate 9 at one end of the focusing frame 4 far away from the base 1, which is provided with four corner reeds 90 with corners extending outwards, one end of the suspension wire 2 far away from the base 1 is connected with the corresponding corner reeds 90, the connection mode adopts welding or clamping and the like, and the power of the corner reeds 90 is supplied when the suspension wire 2 is electrified, and finally the power of the focusing driving mechanism is supplied.
This embodiment utilizes to set up frame 4 that focuses in initiative anti-shake frame 3, when initiative anti-shake frame 3 carries out anti-shake, can effectively make frame 4 that focuses also carry out anti-shake in step to frame 4 focuses in anti-shake the motion of focusing, satisfies the long burnt that is that the product accomplish the big stroke of accomplish in the inside limited altitude dimension.
The focusing movement is realized by adopting a scheme that a focusing driving mechanism 5 is arranged between the active anti-shake frame 3 and the focusing frame 4 so as to drive the focusing frame 4 to move in the axial direction of the optical axis. The focus drive mechanism 5 of the present embodiment is a drive mechanism that generates lorentz force in a magnet coil.
Further, the focusing driving mechanism 5 includes a driving magnet 50 fixed to the inner wall of the active anti-shake frame 3, and focusing driving coils 51 spaced from the driving magnet 50 are provided on the outer wall of the focusing frame 4. In the preferred embodiment, the driving magnets 50 have four pieces, the inner wall of the active anti-shake frame 3 has four inner side walls, one driving magnet 50 is fixed on each inner side wall, the focusing driving coil 51 is a side winding annular coil, the driving magnets 50 are distributed on the periphery of the peripheral surface of the side winding annular coil, and when the side winding annular coil is electrified, the side winding annular coil and the driving magnets 50 cooperate to generate a focusing lorentz force so as to drive the focusing frame 4 in the active anti-shake frame 3 to perform focusing movement in the axial direction of the optical axis.
In order to achieve both anti-shake and focusing, the present embodiment further designs a driven anti-shake frame 6, that is, the driven anti-shake frame 6 moves together with the driving anti-shake frame 3, where the driven anti-shake frame 6 is fixed at one end of the driving anti-shake frame 3 away from the base 1; the driven anti-shake frame 6 moves along the plane perpendicular to the optical axis along with the driving anti-shake frame 3, and when in shooting, an anti-shake optical component (such as a lens) fixed in the driven anti-shake frame 6 and a focusing optical component (such as a lens) fixed in the focusing frame 4 are in stroke combination synergistic action, and particularly, the anti-shake optical component is designed in the light incidence direction of the focusing optical component, so that the anti-shake correction can be formed in advance for focusing actively, and the purpose of high-definition shooting is achieved; secondly, the driven anti-shake frame 6 and the focusing frame 4 are distributed in sequence along the optical axis, in this way, the relative interference of the two frames can be prevented, and meanwhile, the long-distance focusing of the focusing frame 4 can be ensured, so that the use requirement of large-stroke focusing can be met.
Furthermore, the focus avoidance through-hole 11 of the present embodiment can facilitate further increase of the focus stroke, that is, the focus stroke of the focus frame 4.
In addition, the focusing frame 4 and the driven anti-shake frame 6 are arranged on the driving anti-shake frame 3, and the structure enables the two lenses to be integrated and synchronously anti-shake, and due to the integrated design, the high coincidence of the axes of the two lenses and the high coincidence of the axes of the two lenses can be ensured, and the shooting precision can be improved.
Finally, the focusing driving motion of the embodiment only carries one lens, and the focusing driving motion has light weight and can meet the requirements of large stroke and better reliability.
In a preferred embodiment, as shown in fig. 3 and 7, in order to facilitate the installation and fixation and to ensure the stability of the installation and fixation, a magnet fixing step 32 is provided on the inner wall of the active anti-shake frame 3, and a driving magnet 50 is fixed to the magnet fixing step 32. The magnet fixing step 32 may also be understood as a structure of a slot body, that is, a slot body is opened at one side close to the base 1 and a slot body is opened at one side close to the optical axis, and the two openings are designed to improve the installation efficiency of the driving magnet and increase the driving force of the lorentz force.
In order to achieve efficient processing and ensure efficient heat dissipation, as shown in fig. 3, 5 and 6, the first embedded metal piece 30 is embedded in the active anti-shake frame 3 of the embodiment, the second embedded metal piece 60 is embedded in the driven anti-shake frame 6, the first embedded metal piece 30 and the second embedded metal piece 60 are welded together through the exposed part 7, and the assembly efficiency of the active anti-shake frame 3 and the driven anti-shake frame 6 can be ensured by using the embedded metal piece and the exposed part, meanwhile, the embedded metal piece can enhance the structural strength of the active anti-shake frame 3 and the driven anti-shake frame 6 so as to provide stronger anti-falling use performance and stronger bearing performance.
That is, the driving anti-shake frame 3 and the driven anti-shake frame 6 are fixed together by a plurality of exposed portions 7. The exposed portion 7 is also called an overhead portion.
Secondly, the first embedded metal piece 30 and the second embedded metal piece 60 of the present embodiment may be separate metal plates, or may be a ring-shaped piece with a whole circle, and the embedding is performed by injection molding, that is, the main materials of the driving anti-shake frame 3 and the driven anti-shake frame 6 of the present embodiment are plastic materials, and the first embedded metal piece 30 and the second embedded metal piece 60 are respectively embedded and fixed by injection molding.
Of course, as shown in fig. 6, when the first metal insert 30 and the second metal insert 60 of the present embodiment are separate metal plates, the preferred number of the first metal insert 30 of the present embodiment is four, and the second metal insert 60 is a ring-shaped member of a whole circle, the four first metal inserts 30 are respectively embedded and fixed on the corresponding sides of the four sides of the driving anti-shake frame 3, and the connection and fixation of the corresponding sides of the driving anti-shake frame 3 and the corresponding sides of the driven anti-shake frame 6 are realized by using the ring-shaped member and the four exposed portions 7 of the four metal plates, so that the balance of the center of gravity of the driven anti-shake frame 6 can be ensured.
Preferably, when the first embedded metal piece 30 of the present embodiment is a metal plate, the length of the metal plate is smaller than that of a single side of the active anti-shake frame 3, so as to prevent interference when two adjacent metal plates are embedded due to longer length, and the corresponding corner position of the driven anti-shake frame 6, which is close to one end face of the active anti-shake frame 3, can be overhead by length setting, so that internal heat can be dissipated in time, especially, heat dissipation of the focusing driving mechanism is achieved, and the service life of the focusing driving mechanism is prolonged.
The present embodiment uses the exposed portion 7 reserved by the first embedded metal piece 30 and the second embedded metal piece 60 to connect the driving anti-shake frame 3 and the driven anti-shake frame 6, which is simple in this way, has high connection efficiency and good connection stability, and ensures the motion consistency of the anti-shake driving and driven due to the rigid connection.
Further, as shown in fig. 3, 6 and 7, the first embedded metal piece 30 of the present embodiment penetrates the active anti-shake frame 3 along the optical axis direction, that is, the first embedded metal piece 30 penetrates the single side of the active anti-shake frame 3 along the optical axis direction, so as to achieve the above-mentioned rigid connection.
The second embedded metal piece 60 penetrates through the driven anti-shake frame 6 radially outwards in a plane perpendicular to the optical axis, the exposed part 7 comprises a first exposed sub-part 70 and a second exposed sub-part 71, one side, close to the driven anti-shake frame 6, of the first embedded metal piece 30 is connected with the first exposed sub-part 70, the second embedded metal piece 60 penetrates through the driven anti-shake frame 6 radially outwards, the second exposed sub-part 71 is connected with the outer side of the driven anti-shake frame 6, and the first exposed sub-part 70 and the second exposed sub-part 71 are fixedly connected. For example, both welded connections achieve fixation.
Further, the first exposed sub-portion 70 is vertically connected to the first embedded metal piece 30, and the first exposed sub-portion 70 is attached to an end surface of the driving anti-shake frame 3 near the driven anti-shake frame 6, in this way, a stable supporting base can be provided, deformation after bearing is prevented, and the supporting bearing is more stable and reliable, and the second exposed sub-portion 71 is in surface contact with and welded and fixed to the first exposed sub-portion 70. That is, both are the face-to-face contact mode, and this mode can ensure the stability and the reliability of supporting the bearing, simultaneously, can also improve the equipment machining efficiency, and follow-up welding efficiency.
In order to enable the above-mentioned surface-to-surface contact position accuracy, as shown in fig. 8 and 9, a positioning hole 31 is provided at an end face of the driving anti-shake frame 3 near the driven anti-shake frame 6, and a positioning pin 61 inserted into the positioning hole 31 is provided at an end face of the driven anti-shake frame 6 near the driving anti-shake frame 3.
In addition, in order to magnetically enhance the driving magnet, as shown in fig. 3 and 7, the driving magnet 50 of the embodiment is close to the first embedded metal piece 30, that is, the first embedded metal piece 30 has an exposed inner side surface and is directly exposed to the magnet fixing step 32, and the first embedded metal piece 30 can magnetically enhance the driving magnet 50, and meanwhile, the assembly efficiency of the driving magnet 50 can be further improved, and the pre-fixing of the driving magnet 50 can be realized due to magnetic connection, and then the stable fixing of the driving magnet 50 to the magnet fixing step 32 can be further realized through glue.
As shown in fig. 3, 10 and 11, the driving magnet 50 protrudes from the end of the active anti-shake frame 3 near the base 1, and this structure has the following main design advantages: the anti-shake and focusing magnet is shared to improve the compactness of the whole structure and the lorentz force thrust of the anti-shake drive, so that the anti-shake and focusing magnet has very good OIS performance. An anti-shake coil set 10 is arranged on one end face of the base 1, which is close to the active anti-shake frame 3, four groups of anti-shake coil sets 10 are embedded in a plastic substrate 12, the plastic substrate 12 is an FPC board, and the plastic substrate 12 is arranged on the base 1 during installation, so that the service life of the anti-shake coil set 10 can be prolonged, the anti-shake coil set 10 and the driving magnet 50 are distributed relatively, and the anti-shake coil set 10 and the driving magnet 50 are matched so that the active anti-shake frame 3 moves on a plane perpendicular to an optical axis.
The plastic substrate 12 is provided with a second avoidance hole communicated with the avoidance through hole so as to facilitate long-distance avoidance of focusing.
Finally, as shown in fig. 1 and 3, the base 1 is fastened with a housing 8, an incident light hole 80 is formed at the top of the housing 8, the active anti-shake frame 3 is located in a cavity formed by the base 1 and the housing 8, and one end of the driven anti-shake frame 6, which is far away from the active anti-shake frame 3, extends out of the incident light hole 80. The mode can form dust blocking effect to the greatest extent, and meanwhile, the OIS and focusing purposes can be achieved.
The working principle of this embodiment is as follows:
after the anti-shake coil assembly 10 is energized, an anti-shake lorentz force perpendicular to the optical axis is formed between the anti-shake coil assembly and the driving magnet 50, and the active anti-shake frame 3 can perform anti-shake motion in the X direction or the Y direction or in the direction rotating around the optical axis.
For example, if two opposite anti-shake coil sets 10 are in the same energizing direction, anti-shake driving of the active anti-shake frame 3 in the X direction or the Y direction can be achieved.
When two opposite anti-shake coil sets 10 are energized in a clockwise or counterclockwise direction, the active anti-shake frame 3 can perform a rotational anti-shake motion around the optical axis (or Z axis). Of course, the four anti-shake coil groups 10 can be energized in the clockwise or anticlockwise direction at the same time, so that the thrust is larger and the anti-shake effect is better.
When the active anti-shake frame 3 moves in an anti-shake mode, the driven anti-shake frame 6 at the moment follows the active anti-shake frame 3 to perform anti-shake motion synchronously, in the motion process, the focusing frame 4 can be subjected to anti-shake motion synchronously, the focusing driving mechanism 5 drives the focusing frame 4 to focus, and the anti-shake effect is achieved while focusing is performed, so that the final shooting quality is better.
Example two
The structure and the working principle of the present embodiment are basically the same as those of the first embodiment, and the different structures are as follows: as shown in fig. 12, the focusing driving mechanism 5 includes a plurality of driving magnets 50 fixed on the inner wall of the active anti-shake frame 3, and a plurality of focusing driving coils 51 spaced from the driving magnets 50 are disposed on the outer wall of the focusing frame 4, that is, one focusing driving coil 51 corresponds to one driving magnet 50, so as to also meet the focusing driving requirement.
Example III
As shown in fig. 13, the present embodiment provides an image pickup apparatus having the driving apparatus for inner focus and anti-shake of the first or second embodiment. On the basis of the first or second embodiment, an anti-shake optical component 6a is provided in the driven anti-shake frame 6, a focusing optical component 4a is provided in the focusing frame 4, and the axis of the anti-shake optical component 6a coincides with the axis of the focusing optical component 4 a.
Example IV
As shown in fig. 14, the present embodiment provides an electronic apparatus having the image pickup device of the third embodiment. The electronic device of the embodiment is, for example, a 3C product such as a mobile phone.
The specific embodiments described herein are offered by way of example only to illustrate the spirit of the invention. Those skilled in the art may make various modifications or additions to the described embodiments or substitutions thereof without departing from the spirit of the invention or exceeding the scope of the invention as defined in the accompanying claims.
Claims (13)
1. The driving device with the internal focusing function and the anti-shake function comprises a base (1) and an active anti-shake frame (3) connected to the base (1) through a suspension wire (2), and is characterized in that the driving device further comprises:
the focusing frame (4) is positioned in the active anti-shake frame (3); the focusing frame (4) and the active anti-shake frame (3) are connected through an elastic sheet (9), and the focusing frame (4) is used for bearing optical components;
the focusing driving mechanism (5) is arranged between the active anti-shake frame (3) and the focusing frame (4) so as to drive the focusing frame (4) to axially move on the optical axis;
the driven anti-shake frame (6) is fixed at one end of the driving anti-shake frame (3) far away from the base (1); the driven anti-shake frame (6) moves along the driving anti-shake frame (3) on a plane perpendicular to the optical axis, and the driven anti-shake frame (6) is used for bearing optical components;
the driven anti-shake frame (6) and the focusing frame (4) are distributed in sequence by the optical axis.
2. The driving device for internal focusing and anti-shake according to claim 1, wherein the focusing driving mechanism (5) comprises a driving magnet (50) fixed on the inner wall of the active anti-shake frame (3), and focusing driving coils (51) distributed at intervals with the driving magnet (50) are arranged on the outer wall of the focusing frame (4).
3. The driving device for internal focusing and anti-shake according to claim 2, wherein a first embedded metal piece (30) is embedded in the driving anti-shake frame (3), a second embedded metal piece (60) is embedded in the driven anti-shake frame (6), and the first embedded metal piece (30) and the second embedded metal piece (60) are welded together through a bare part (7).
4. The driving device for focusing and anti-shake according to claim 3, wherein the first embedded metal piece (30) penetrates through the driving anti-shake frame (3) along the optical axis direction, the second embedded metal piece (60) penetrates through the driven anti-shake frame (6) along the plane perpendicular to the optical axis radially outwards, the exposed portion (7) comprises a first exposed sub-portion (70) and a second exposed sub-portion (71), one side, close to the driven anti-shake frame (6), of the first embedded metal piece (30) is connected with the first exposed sub-portion (70), the second embedded metal piece (60) penetrates through the outer side of the driven anti-shake frame (6) radially outwards and is connected with the second exposed sub-portion (71), and the first exposed sub-portion (70) and the second exposed sub-portion (71) are fixedly connected.
5. The driving device for internal focusing and anti-shake according to claim 4, wherein the first exposed sub-portion (70) is vertically connected with the first embedded metal piece (30), the first exposed sub-portion (70) is attached to an end face of the driving anti-shake frame (3) close to the driven anti-shake frame (6), and the second exposed sub-portion (71) is in surface contact with and welded to the first exposed sub-portion (70).
6. The driving device for internal focusing and anti-shake according to claim 1, wherein a positioning hole (31) is provided on an end surface of the driving anti-shake frame (3) close to the driven anti-shake frame (6), and a positioning pin (61) inserted into the positioning hole (31) is provided on an end surface of the driven anti-shake frame (6) close to the driving anti-shake frame (3).
7. A driving device for internal focusing and anti-shake according to claim 3, wherein a magnet fixing step (32) is provided on the inner wall of the active anti-shake frame (3), the driving magnet (50) is fixed on the magnet fixing step (32), and the driving magnet (50) is attached to the first embedded metal piece (30).
8. The driving device for internal focusing and anti-shake according to claim 7, wherein the side of the driving magnet (50) near the base (1) protrudes from the end of the active anti-shake frame (3) near the base (1).
9. The driving device for internal focusing and anti-shake according to claim 8, wherein an anti-shake coil group (10) is disposed on an end surface of the base (1) near the active anti-shake frame (3), the anti-shake coil group (10) and the driving magnet (50) are distributed relatively, and the anti-shake coil group (10) is matched with the driving magnet (50) so as to enable the active anti-shake frame (3) to move on a plane perpendicular to the optical axis.
10. The driving device for internal focusing and anti-shake according to claim 1, wherein the base (1) is buckled with a housing (8), an incident light hole (80) is formed in the top of the housing (8), and the active anti-shake frame (3) is located in a cavity formed by the base (1) and the housing (8).
11. The driving device for internal focusing and anti-shake according to claim 10, characterized in that the end of the driven anti-shake frame (6) away from the driving anti-shake frame (3) protrudes from the incident light hole (80).
12. An image pickup apparatus having the driving apparatus for inner focus and anti-shake according to any one of claims 1 to 11.
13. An electronic apparatus having the imaging device according to claim 12.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
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| CN202210265321.9A CN114755872B (en) | 2022-03-17 | 2022-03-17 | Driving device with internal focusing and anti-shake functions, imaging device and electronic equipment |
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| Application Number | Priority Date | Filing Date | Title |
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| CN202210265321.9A CN114755872B (en) | 2022-03-17 | 2022-03-17 | Driving device with internal focusing and anti-shake functions, imaging device and electronic equipment |
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| CN114755872B true CN114755872B (en) | 2024-04-16 |
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| JP4684771B2 (en) * | 2005-06-30 | 2011-05-18 | Ｈｏｙａ株式会社 | Image blur correction device |
| KR101993077B1 (en) * | 2015-09-06 | 2019-06-25 | 코어포토닉스 리미티드 | Automatic focus and optical image stabilization by roll compensation of compact folding camera |
| JP7449119B2 (en) * | 2020-03-04 | 2024-03-13 | ニデックインスツルメンツ株式会社 | Optical unit with shake correction function |
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| JPH1152445A (en) * | 1997-07-31 | 1999-02-26 | Canon Inc | Correction optical system state setting device and shake correction device |
| JP2003057710A (en) * | 2001-08-22 | 2003-02-26 | Canon Inc | Image shake correcting system |
| WO2021159391A1 (en) * | 2020-02-13 | 2021-08-19 | 南昌欧菲光电技术有限公司 | Camera module, photographing apparatus, and electronic device |
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| CN114755872A (en) | 2022-07-15 |
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