CN113325542B - Lens holder, lens driving device, image pickup device, and electronic apparatus - Google Patents
Lens holder, lens driving device, image pickup device, and electronic apparatus Download PDFInfo
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- CN113325542B CN113325542B CN202110631830.4A CN202110631830A CN113325542B CN 113325542 B CN113325542 B CN 113325542B CN 202110631830 A CN202110631830 A CN 202110631830A CN 113325542 B CN113325542 B CN 113325542B
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- magnetism
- translation frame
- magnet
- increasing reinforcing
- increasing
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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
- G02B7/023—Mountings, adjusting means, or light-tight connections, for optical elements for lenses permitting adjustment
-
- G—PHYSICS
- G02—OPTICS
- G02B—OPTICAL ELEMENTS, SYSTEMS OR APPARATUS
- G02B27/00—Optical systems or apparatus not provided for by any of the groups G02B1/00 - G02B26/00, G02B30/00
- G02B27/64—Imaging systems using optical elements for stabilisation of the lateral and angular position of the image
- G02B27/646—Imaging systems using optical elements for stabilisation of the lateral and angular position of the image compensating for small deviations, e.g. due to vibration or shake
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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
-
- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02K—DYNAMO-ELECTRIC MACHINES
- H02K41/00—Propulsion systems in which a rigid body is moved along a path due to dynamo-electric interaction between the body and a magnetic field travelling along the path
- H02K41/02—Linear motors; Sectional motors
- H02K41/035—DC motors; Unipolar motors
- H02K41/0352—Unipolar motors
- H02K41/0354—Lorentz force motors, e.g. voice coil motors
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- Physics & Mathematics (AREA)
- General Physics & Mathematics (AREA)
- Optics & Photonics (AREA)
- Engineering & Computer Science (AREA)
- Chemical & Material Sciences (AREA)
- Combustion & Propulsion (AREA)
- Electromagnetism (AREA)
- Power Engineering (AREA)
- Adjustment Of Camera Lenses (AREA)
- Lens Barrels (AREA)
Abstract
The invention belongs to the technical field of optical anti-shake, and particularly relates to a lens support, a lens driving device, a camera device and electronic equipment. It has solved current support anti deformability subalternation technical problem. The lens holder includes a translation frame moving in a plane perpendicular to the optical axis; the magnetism-increasing reinforcing piece is fixed on the translation frame and is used for reinforcing a radial structure and/or an axial structure of the translation frame; the magnetism increasing reinforcing piece uniformly increases magnetism of the first magnet and/or the second magnet which take the shaft axis of the translation frame as the center. The invention has the advantages that: the magnetism-increasing reinforcing part not only can strengthen the structure of the translation frame, but also can be matched with the first magnet and/or the second magnet to enhance the magnetic field intensity, so that the thrust is increased, the large-thrust requirement of the motor is met, the stability of the whole motor structure can be enhanced, the structure is not easy to loosen, and the service life and the use performance of the O I S motor are greatly prolonged.
Description
Technical Field
The invention belongs to the technical field of optical anti-shake, and particularly relates to a lens support, a lens driving device, a camera device and electronic equipment.
Background
In a voice coil motor, parts in a casing of the voice coil motor need to be installed and positioned through a support piece, and in order to ensure the smooth operation of the voice coil motor, the installation stability of the support piece in the casing is firstly ensured. The commonly used supporting piece adopts the composition surface and the cooperation of shells inner wall, and after long-time the use, support piece takes place the deformation, and its position takes place the skew in the casing to it is not hard up to cause other components in the motor and support piece combination, produces adverse effect to the whole operation effect of motor.
Secondly, the AF electromagnetic thrust and/or OIS electromagnetic thrust of the existing voice coil motor are small, and the use requirement of large thrust cannot be met.
Disclosure of Invention
The present invention has been made in view of the above problems, and an object of the present invention is to provide a lens holder, an anti-shake and lens driving device, an imaging device, and an electronic apparatus that can solve the above problems.
In order to achieve the purpose, the invention adopts the following technical scheme:
the lens holder includes a translation frame moving in a plane perpendicular to the optical axis;
the magnetism-increasing reinforcing piece is fixed on the translation frame and is used for reinforcing the radial structure and/or the axial structure of the translation frame;
the magnetism increasing reinforcing piece uniformly increases magnetism of the first magnet and/or the second magnet which take the shaft axis of the translation frame as the center.
The first magnet is an AF magnet, and the second magnet is an OIS magnet.
In the lens holder, the magnetism-increasing reinforcing members have one to four and are supported at one to four inner corners of the translation frame.
In the lens holder, a magnetism-increasing reinforcing member is provided at each inner corner of the translation frame.
In the lens holder, each magnetization reinforcing member includes a lower magnetization reinforcing plate, the first magnet is fixed to an upper surface of the lower magnetization reinforcing plate, and the second magnet is fixed to a lower surface of the lower magnetization reinforcing plate.
In the lens support, each magnetism increasing reinforcing part further comprises an upper magnetism increasing reinforcing plate which is located above the lower magnetism increasing reinforcing plate and parallel to the lower magnetism increasing reinforcing plate, and a first magnet fixing cavity is formed between the upper magnetism increasing reinforcing plate and the lower magnetism increasing reinforcing plate.
In the lens support, the opening of the first magnet fixing cavity faces the axial lead of the translation frame.
In the above lens holder, the notch of the second magnet fixing groove faces downward.
In the lens support, the upper magnetism increasing reinforcing plate and the lower magnetism increasing reinforcing plate are parallel to each other and fixed on the inner wall of the translation frame.
In the lens support, the upper magnetism-increasing reinforcing plate and the lower magnetism-increasing reinforcing plate are respectively and vertically distributed with the axial lead of the translation frame.
In the lens support, the four corners of the upper end face of the translation frame are respectively provided with an inner convex boss for fixing the elastic sheet, and the inner convex boss is partially suspended in the translation frame.
In the lens support, the upper surface of the upper magnetism-increasing reinforcing plate is fixed on the lower surface of the inner convex boss extending to the inner side of the translation frame.
In the lens support, the side edge of the upper magnetism increasing reinforcing plate close to the inner wall of the translation frame is provided with an upper corner baffle plate which is vertically connected with the upper magnetism increasing reinforcing plate, the shape of the upper corner baffle plate is matched with that of the corner part of the inner wall of the translation frame, and the outer surface of the upper corner baffle plate is fixed on the corner part of the inner wall of the translation frame.
In the lens support, the inner wall of the translation frame is further provided with a step groove located below the outer side of the upper magnetism-increasing reinforcing plate, and the upper surface of the lower magnetism-increasing reinforcing plate is fixed on the upper groove wall of the step groove.
In the lens support, the outer side edge of the lower magnetism-increasing reinforcing plate, which is close to the step groove, is provided with a lower corner baffle plate which is vertically connected with the lower magnetism-increasing reinforcing plate, the outer surface of the lower corner baffle plate is fixedly connected with the side groove wall of the step groove, and the lower surface of the lower magnetism-increasing reinforcing plate and the inner side surface of the lower corner baffle plate form a second magnet fixing groove.
In the lens support, four corners of the upper end surface of the translation frame are respectively provided with a sunken table.
The application provides a lens driving device, which is provided with the lens bracket.
The application provides an image pickup device with the lens driving device.
The application provides an electronic device with the camera device.
Compared with the prior art, the invention has the advantages that:
the magnetism-increasing reinforcing piece not only can strengthen the structure formation of the translation frame, but also can be matched with the first magnet and/or the second magnet to strengthen the magnetic field intensity, so that the thrust is increased, the requirement of the motor on large thrust is met, the stability of the whole motor structure can be enhanced, the structure is not easy to loosen, and the service life and the use performance of the OIS motor are greatly prolonged.
Drawings
Fig. 1 is a schematic view of a lens holder structure provided by the present invention.
FIG. 2 is a schematic view of another embodiment of a lens holder according to the present invention.
Fig. 3 is a schematic structural diagram of a second embodiment of the present invention.
FIG. 4 is a schematic diagram of a third structure of the embodiment of the present invention.
Fig. 5 is a schematic structural diagram of the fourth embodiment of the present invention.
Fig. 6 is a schematic structural diagram of a fifth embodiment of the present invention.
Fig. 7 is a schematic structural diagram of a sixth embodiment of the present invention.
Fig. 8 is a schematic structural diagram of a seventh embodiment of the present invention.
In the figure, a translation frame 1, a step groove 10, a sunken platform 11, a notch 12, a magnetism-increasing reinforcing piece 2, an upper magnetism-increasing reinforcing plate 20, a lower magnetism-increasing reinforcing plate 21, a first magnet fixing cavity 22, an upper corner baffle plate 24, a lower corner baffle plate 25, an inner convex boss 3 and an optical axis a are arranged.
Detailed Description
The following are specific embodiments of the present invention and are further described with reference to the accompanying drawings, but the present invention is not limited to these embodiments.
As shown in fig. 1, the lens holder includes a translation frame 1 moving in a plane perpendicular to an optical axis a, the translation frame 1 is shaped in a tetragonal structure, and is formed by injection molding to improve the production process efficiency and the structural strength.
As shown in fig. 1 and 2, the magnetism-increasing reinforcement 2 is fixed on the translational frame 1 and is used for reinforcing the radial structure and/or the axial structure of the translational frame 1;
the magnetism increasing reinforcer 2 uniformly increases magnetism of the first magnet and/or the second magnet taking the axial lead of the translation frame 1 as the center.
The magnetism-increasing reinforcing part 2 can not only strengthen the structure of the translation frame 1, but also be matched with the first magnet and/or the second magnet to enhance the magnetic field intensity, so that the thrust is increased, the large thrust requirement of the motor is met, the stability of the whole motor structure can be enhanced, the structure is not easy to loosen, and the service life and the use performance of the OIS motor are greatly prolonged.
Preferably, the magnetism increasing reinforcement member 2 of the present embodiment simultaneously increases the magnetic field for the first magnet and the second magnet.
Of course, the magnetism-increasing reinforcing part 2 can be used for reinforcing the magnetic field of the first magnet alone or reinforcing the magnetic field of the second magnet alone so as to meet different use requirements.
Preferably, four corners of the upper end surface of the translation frame 1 are respectively provided with a sunken table 11. The sink deck 11 is used for evacuation and the like.
Preferably, a magnetizing reinforcement 2 is provided at each inner corner of the translating frame 1. The inner corner here refers to the inner right-angle portion.
Specifically, each of the magnetism increasing reinforcing members 2 of the present embodiment includes a lower magnetism increasing reinforcing plate 21, a first magnet fixed to an upper surface of the lower magnetism increasing reinforcing plate 21, and a second magnet fixed to a lower surface of the lower magnetism increasing reinforcing plate 21.
The lower magnetism increasing reinforcing plate 21 has a function of fixing the first magnet and the second magnet in addition to the above-described advantages, and for example, the lower magnetism increasing reinforcing plate 21, the first magnet, and the second magnet may be assembled and fixed together as a unit module in advance, and then the unit module may be fixed to the translating frame 1 together and fixed by an adhesive. Or, increase magnetism reinforcing plate 21 down and utilize and mould plastics integrated into one piece's mode with translation frame 1 and inlay admittedly, then fix first magnetite and second magnetite, it has obviously improved production packaging efficiency to reach the precision of magnetite fixed position, and the magnetite is fixed more firmly and stable.
Preferably, each magnetization enhancing reinforcement 2 of the present embodiment further includes an upper magnetization enhancing reinforcement plate 20 located above the lower magnetization enhancing reinforcement plate 21 and parallel to the lower magnetization enhancing reinforcement plate 21, and a first magnet fixing cavity 22 is formed between the upper magnetization enhancing reinforcement plate 20 and the lower magnetization enhancing reinforcement plate 21. The upper magnetization enhancing plate 20, the lower magnetization enhancing plate 21, the first magnets and the second magnets may be assembled and fixed together as a unit module, and then the unit module may be fixed to the translation frame 1, for example, by using an adhesive. Or, go up and increase magnetism reinforcing plate 20 and increase magnetism reinforcing plate 21 down and utilize and mould plastics integrated into one piece's mode with translation frame 1 and inlay admittedly, then fix first magnetite and second magnetite again, it has obviously improved production packaging efficiency to above two kinds of modes to and the precision of magnetite fixed position, the magnetite is fixed more firmly and stable.
In order to facilitate assembly and further improve the thrust of the first magnet, the opening of the first magnet fixing cavity 22 faces the axial lead of the translation frame 1. That is, the AF coil of the magnet is at the opening.
Secondly, the upper magnetism-increasing reinforcing plate 20 and the lower magnetism-increasing reinforcing plate 21 are fixed on the inner wall of the translation frame 1. There are two fixing methods, and reference can be made to the above two fixing methods.
In addition, the upper magnetism increasing reinforcing plate 20 and the lower magnetism increasing reinforcing plate 21 are respectively distributed perpendicularly to the axial lead of the translation frame 1. In this way, it is possible to prevent the interference of the upper and lower magnetism increasing reinforcing plates 20 and 21 with respect to the first magnet, and at the same time, it is possible to improve the efficiency of mounting and dismounting.
Preferably, the four corners of the upper end face of the translation frame 1 are respectively provided with an inner convex boss 3 for fixing the elastic sheet, and the inner convex boss 3 is partially suspended in the translation frame 1. The inward convex boss 3 is directly formed with the translation frame 1 in an integrated injection mode, and therefore accuracy of the elastic sheet fixing position is guaranteed.
Next, the upper surface of the upper magnetism-increasing reinforcing plate 20 is fixed to the lower surface of the inner convex boss 3 extending to the inner side of the translation frame 1. In this way, the fixing stability of the upper magnetism increasing reinforcing plate 20 can be improved. And the side edge of the upper magnetism increasing reinforcing plate 20 close to the inner wall of the translation frame 1 is provided with an upper corner baffle plate 24 which is vertically connected with the upper magnetism increasing reinforcing plate 20, the shape of the upper corner baffle plate 24 is adapted to the shape of the corner part of the inner wall of the translation frame 1, and the outer surface of the upper corner baffle plate 24 is fixed on the corner part of the inner wall of the translation frame 1. The upper magnetism increasing reinforcing plate 20 can be prevented from falling off downward by increasing the contact fixing surface to improve the fixing stability of the upper magnetism increasing reinforcing plate 20.
In addition, a step groove 10 is further provided on the inner wall of the translation frame 1, which is located below the outer side of the upper magnetism-increasing reinforcing plate 20, and the upper surface of the lower magnetism-increasing reinforcing plate 21 is fixed to the upper groove wall of the step groove 10. The outer side edge of the lower magnetism increasing reinforcing plate 21 close to the step groove 10 is provided with a lower corner baffle plate 25 which is vertically connected with the lower magnetism increasing reinforcing plate 21, the outer surface of the lower corner baffle plate 25 is fixedly connected with the side groove wall of the step groove 10, and a second magnet fixing groove is formed in the lower surface of the lower magnetism increasing reinforcing plate 21 and the inner side surface of the lower corner baffle plate 25. For the same reason, the contact fixing surface is increased to improve the fixing firmness of the lower magnetism increasing reinforcing plate 21, so that the lower magnetism increasing reinforcing plate 21 is prevented from falling off downwards.
The thickness of the upper magnetism increasing reinforcing plate 20 is smaller than that of the lower magnetism increasing reinforcing plate 21, and of course, the thicknesses of the two may be equal.
The lower magnetism-increasing reinforcing plates 21 are located on the same horizontal plane, and the upper magnetism-increasing reinforcing plates 20 are located on the same horizontal plane.
The middle part of the lower sides of two opposite sides of the translation frame 1 is provided with a notch 12. The functions of avoiding weight reduction and the like are achieved.
Example two
As shown in fig. 3, the structure and principle of the present embodiment are substantially the same as those of the first embodiment, and the different structure is as follows: the magnetism increasing reinforcing member 2 has one and is supported at four inner corners of the translation frame 1, that is, the magnetism increasing reinforcing member 2 of the embodiment is a circular ring member.
EXAMPLE III
As shown in fig. 4, the structure and principle of the present embodiment are substantially the same as those of the first embodiment, and the different structure is as follows: the magnetism-increasing reinforcing member 2 has two and is supported at two inner corners of the diagonal line of the translation frame 1.
Example four
As shown in fig. 5, the structure and principle of the present embodiment are substantially the same as those of the first embodiment, and the different structure is as follows: the magnetism-increasing reinforcement 2 has two or three and is supported at three of the inner corners of the translation frame 1.
EXAMPLE five
Based on embodiments one to four, as shown in fig. 6, the present embodiment provides a lens driving apparatus, that is, the lens driving apparatus includes an AF motor, and an optical anti-shake mechanism connected to the AF motor, wherein the optical anti-shake mechanism includes the lens holder according to embodiments one to four.
EXAMPLE six
Based on embodiment five, as shown in fig. 7, this embodiment provides an image pickup apparatus having the lens driving apparatus described in embodiment five. The image pickup device is, for example, an image pickup module.
EXAMPLE seven
Based on the sixth embodiment, as shown in fig. 8, the present embodiment provides an electronic apparatus having the image pickup device described in the sixth embodiment. Electronic devices such as cell phones and the like.
The specific embodiments described herein are merely illustrative of the spirit of the invention. Various modifications or additions may be made to the described embodiments or alternatives may be employed by those skilled in the art without departing from the spirit or ambit of the invention as defined in the appended claims.
Claims (15)
1. Lens holder comprising a translational frame (1) moving in a plane perpendicular to the optical axis (a), characterized in that it further comprises:
the magnetism-increasing reinforcing piece (2) is fixed on the translation frame (1) and is used for reinforcing the radial structure and/or the axial structure of the translation frame (1);
the magnetism increasing reinforcement (2) uniformly increases magnetism of the first magnet and/or the second magnet which take the axial lead of the translation frame (1) as the center;
the magnetism-increasing reinforcing pieces (2) are provided with one to four and are supported at one to four inner corners of the translation frame (1); each magnetism-increasing reinforcing piece (2) comprises a lower magnetism-increasing reinforcing plate (21), a first magnet is fixed on the upper surface of the lower magnetism-increasing reinforcing plate (21), and a second magnet is fixed on the lower surface of the lower magnetism-increasing reinforcing plate (21).
2. Lens holder according to claim 1, characterized in that a magnetization enhancing reinforcement (2) is provided at each inner corner of the translatory frame (1).
3. The lens holder according to claim 1, wherein each magnetization enhancing reinforcement member (2) further comprises an upper magnetization enhancing reinforcement plate (20) located above the lower magnetization enhancing reinforcement plate (21) and parallel to the lower magnetization enhancing reinforcement plate (21), and a first magnet fixing cavity (22) is formed between the upper magnetization enhancing reinforcement plate (20) and the lower magnetization enhancing reinforcement plate (21).
4. A lens holder according to claim 3, characterized in that the opening of the first magnet holding cavity (22) is directed towards the axis of the translating frame (1).
5. Lens holder according to claim 3, characterized in that the upper and lower magnetism increasing stiffening plates (20, 21) are fixed to the inner wall of the translating frame (1).
6. The lens holder according to claim 5, characterized in that the upper and lower magnetism-increasing reinforcing plates (20, 21) are respectively arranged perpendicular to the axial center line of the translating frame (1).
7. The lens support according to claim 3, characterized in that four corners of the upper end surface of the translation frame (1) are respectively provided with an inward convex boss (3) for fixing the elastic sheet, and the inward convex bosses (3) are partially suspended in the translation frame (1).
8. The lens holder according to claim 7, characterized in that the upper surface of the upper magnetism-increasing reinforcing plate (20) is fixed to the lower surface of the inner convex boss (3) extending to the inner side of the translation frame (1).
9. The lens support according to claim 8, characterized in that the side of the upper magnetism-increasing reinforcing plate (20) close to the inner wall of the translation frame (1) is provided with an upper corner baffle (24) vertically connected with the upper magnetism-increasing reinforcing plate (20), the shape of the upper corner baffle (24) is adapted to the shape of the corner of the inner wall of the translation frame (1), and the outer surface of the upper corner baffle (24) is fixed on the corner of the inner wall of the translation frame (1).
10. Lens holder according to claim 9, characterized in that the inner wall of the translational frame (1) is further provided with a step groove (10) below the outer side of the upper magnetism adding reinforcement plate (20).
11. The lens support according to claim 10, wherein the outer side edge of the lower magnetism-increasing reinforcing plate (21) close to the step groove (10) is provided with a lower corner baffle plate (25) vertically connected with the lower magnetism-increasing reinforcing plate (21), the outer surface of the lower corner baffle plate (25) is fixedly connected with the side groove wall of the step groove (10), and a second magnet fixing groove is formed on the lower surface of the lower magnetism-increasing reinforcing plate (21) and the inner side surface of the lower corner baffle plate (25).
12. Lens holder according to claim 1, characterized in that the upper end surface of the translation frame (1) is provided with sinkers (11) at its four corners.
13. Lens driving device, characterized in that it has a lens holder according to any of claims 1-12.
14. An image pickup apparatus having the lens driving apparatus according to claim 13.
15. An electronic apparatus having the imaging device according to claim 14.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202110631830.4A CN113325542B (en) | 2021-06-07 | 2021-06-07 | Lens holder, lens driving device, image pickup device, and electronic apparatus |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202110631830.4A CN113325542B (en) | 2021-06-07 | 2021-06-07 | Lens holder, lens driving device, image pickup device, and electronic apparatus |
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| Publication Number | Publication Date |
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| CN113325542A CN113325542A (en) | 2021-08-31 |
| CN113325542B true CN113325542B (en) | 2022-09-09 |
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| US8451543B2 (en) * | 2010-11-12 | 2013-05-28 | Tdk Taiwan Corporation | Magnet holding structure of auto-focus module |
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| CN101216589A (en) * | 2008-01-16 | 2008-07-09 | 张超 | Lens actuating device |
| CN101520534A (en) * | 2008-02-29 | 2009-09-02 | 德昌电机(深圳)有限公司 | Lens driving device |
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| CN113325542A (en) | 2021-08-31 |
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