CN115167062A - Lens anti-shake assembly, anti-shake device and electronic equipment - Google Patents
Lens anti-shake assembly, anti-shake device and electronic equipment Download PDFInfo
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- CN115167062A CN115167062A CN202210731387.2A CN202210731387A CN115167062A CN 115167062 A CN115167062 A CN 115167062A CN 202210731387 A CN202210731387 A CN 202210731387A CN 115167062 A CN115167062 A CN 115167062A
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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
- 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 embodiment of the invention relates to the field of camera shooting, and provides a lens anti-shake component, an anti-shake device and electronic equipment, which comprise: the first coil is arranged on one side surface of the lens module, which is adjacent to the first magnet, wherein the first magnet is fixedly arranged on one side of the first coil, which is far away from the lens module; the first coil is used for transmitting a first positive phase current or a first reverse phase current, wherein the lens module is driven to rotate along a first direction under the condition that the first coil transmits the first positive phase current, or the lens module is driven to rotate along a second direction under the condition that the first coil transmits the first reverse phase current, so that the problem of image quality loss in the shooting process is avoided.
Description
Technical Field
The embodiment of the invention relates to the field of camera shooting, in particular to a lens anti-shake assembly, an anti-shake device and electronic equipment.
Background
With the rapid development of image technology, the phenomenon of taking pictures by using a lens is more and more common. The object can generate an optical image through the lens and project on the photosensitive chip, and when the object is different from the lens in distance, the corresponding generated optical image is different in position, so that the distance between the lens and the photosensitive chip is required to be adjusted, and a clear imaging effect can be obtained on the photosensitive chip all the time.
In the process of shooting by using a lens, a user has the problem of blurred and unclear shot images caused by lens shake, generally, in order to improve the shooting quality, optical anti-shake needs to be arranged in a lens module, and final picture shake is reduced through movement of the lens.
Disclosure of Invention
The embodiment of the invention provides a lens anti-shake assembly, an anti-shake device and electronic equipment, which are used for avoiding the problem of image quality loss in the shooting process.
An embodiment of the present invention provides a lens anti-shake assembly, including: the magnetic field direction in the first magnet is parallel to the surface of one side of the lens module, which is provided with the first coil, and is intersected with the bottom of the lens module; the first coil is used for transmitting a first positive phase current or a first reverse phase current, wherein the lens module is driven to rotate along a first direction under the condition that the first coil transmits the first positive phase current, or the lens module is driven to rotate along a second direction under the condition that the first coil transmits the first reverse phase current.
In some embodiments, the lens anti-shake assembly further includes: the second coil is arranged on the surface of the side wall of the lens module, the plane of the second coil is vertical to the plane of the first coil, and the second coil is used for transmitting a second positive phase current or a second reverse phase current; the second magnet is fixedly arranged on one side of the second coil, which is far away from the lens module, and the direction of a magnetic field inside the second magnet is parallel to the bottom surface of the lens module and is parallel to the surface of one side of the lens module, which is provided with the second coil; the lens module is driven to rotate along a third direction under the condition that the second coil transmits a second positive-phase current, or the lens module is driven to rotate along a fourth direction under the condition that the second coil transmits a second negative-phase current.
In some embodiments, the lens anti-shake assembly further includes: the third coil is arranged on the surface of the side wall of the lens module, the plane of the third coil is parallel to the plane of the first coil, and the third coil is used for transmitting a third normal phase current or a third reverse phase current; the third magnet is fixedly arranged on one side of the third coil, which is far away from the lens module, and the direction of a magnetic field in the third magnet is vertical to the surface of the lens module, which is provided with the third coil; the lens module is driven to move along a fifth direction under the condition that the third coil transmits a third normal-phase current, or the lens module is driven to move along a sixth direction under the condition that the third coil transmits a third reversed-phase current.
In some embodiments, the lens anti-shake assembly further includes: the fourth coil is arranged on the surface of the side wall of the lens module, the plane where the fourth coil is located is parallel to the plane where the second coil is located, and the fourth coil is used for transmitting a fourth normal phase current or a fourth reverse phase current; the fourth magnet is fixedly arranged on one side of the fourth coil, which is far away from the lens module, and the direction of a magnetic field in the fourth magnet is vertical to the surface of the lens module, which is provided with the fourth coil; the lens module is driven to move along the seventh direction under the condition that the fourth coil transmits the fourth positive phase current, or the lens module is driven to move along the eighth direction under the condition that the fourth coil transmits the fourth negative phase current.
In some embodiments, the lens anti-shake assembly further includes: the first magnetism isolating sheet, the second magnetism isolating sheet, the third magnetism isolating sheet and the fourth magnetism isolating sheet are fixed on the surface of the lens module; the first magnetism isolating sheet is located between the lens module and the first coil, the second magnetism isolating sheet is located between the lens module and the second coil, the third magnetism isolating sheet is located between the lens module and the third coil, and the fourth magnetism isolating sheet is located between the lens module and the fourth coil.
In some embodiments, the lens anti-shake assembly further includes: the Hall elements are respectively arranged on one side surface of the lens module, which is provided with the first coil, the second coil, the third coil and the fourth coil, and are electrically connected with the lens module; the flexible circuit board is used for electrically connecting the lens module with an external device and extends to the outside of the lens module along the bottom of one side of the lens module, which is provided with the first coil; and the control driver is configured to compensate the shaking influence of the lens module based on the position information fed back by the Hall element.
In some embodiments, the flexible circuit board is folded in half with a bottom edge of one side of the lens module having the first coil as an axis to form a bending portion, and the bending portion is used for stretching or compressing along with the movement of the lens module.
In some embodiments, the lens module includes a lens and a focusing component that achieves focusing of the lens based on one of an open-loop motor, a closed-loop motor, an optical anti-shake motor, or a six-axis motor.
An embodiment of the present invention further provides an anti-shake apparatus, including any one of the lens anti-shake assemblies in the above embodiments, further including: a housing having a receiving cavity for receiving the lens anti-shake assembly; go up shell fragment and shell fragment down, go up the interior week of shell fragment and be connected with the periphery at lens module top, the inner wall connection at periphery and shell top, the interior week of lower shell fragment is connected with the periphery of lens module bottom, the inside wall connection of outside and shell bottom, the lens module is based on last shell fragment and shell fragment unsettled in the shell down.
The embodiment of the invention also provides electronic equipment, and the anti-shake device is adopted to realize anti-shake of the lens.
The technical scheme provided by the embodiment of the invention at least has the following advantages: through set up first coil at the lateral wall of camera lens module, first coil correspondence has the first magnetite of fixed setting, and the inside magnetic field direction of first magnetite is parallel with the side surface that the camera lens module is provided with first coil, intersects with the bottom of camera lens module, produces the interact power between first coil and first magnetite under, can realize the rotation of camera lens module in first direction and second direction. When the lens module shakes in the use process, acting force is generated between the change of the direction of the magnetic field generated by the first coil and the first magnet fixedly arranged, and the lens module can be driven to move, so that the overall shake of the lens module is counteracted, and the image quality loss in the shooting process is avoided.
In addition, the lens anti-shake assembly can further comprise Hall elements, position information acquired through the Hall elements is directly fed back to the control driver, the control driver directly controls corresponding coils to generate a magnetic field based on the position information of the lens module, the coils and corresponding magnets generate acting force, and shake influence of the lens module is directly compensated, so that a closed-loop control system is formed, and shake compensation of the lens anti-shake assembly is more accurate and rapid.
Drawings
One or more embodiments are illustrated by corresponding figures in the drawings, which are not to be construed as limiting the embodiments, unless expressly stated otherwise, the drawings are not to scale; in order to more clearly illustrate the embodiments of the present invention or the technical solutions in the conventional technologies, the drawings needed to be used in the embodiments will be briefly described below, and it is obvious that the drawings in the following description are only some embodiments of the present invention, and it is obvious for those skilled in the art to obtain other drawings without creative efforts.
Fig. 1 is a schematic view of an angle structure of a lens anti-shake device according to an embodiment of the present invention;
fig. 2 is a side view of a lens anti-shake assembly according to an embodiment of the invention;
fig. 3 is a schematic structural diagram of a lens anti-shake assembly according to another angle in the present invention;
fig. 4 is a top view of a lens anti-shake assembly according to an embodiment of the invention.
Detailed Description
As is clear from the background art, there is a problem of image quality loss during imaging.
The camera lens module of the camera shooting product is provided with a camera lens and a light sensing chip, an optical image generated by the camera lens is projected onto the surface of the light sensing chip, the position of the camera lens is adjusted to enable the optical image projected on the light sensing chip to be clear, and then the clear image can be obtained. However, in the use process of the lens, the lens may shake due to human operation, so that the lens and the light sensing chip cannot keep relatively static, and therefore, the optical image on the light sensing chip is continuously changed, and finally, the shot image is unclear. Generally, in order to improve the shooting quality, an optical anti-shake function is required to be installed in the lens module, and the final image shake is reduced by the movement of the lens, but when the lens moves greatly relative to the light sensing chip, a large-scale image quality loss of a non-central area of an image is caused, so that the anti-shake function is required to be realized on the whole lens module to avoid the problem of edge image quality loss.
An embodiment of the present invention provides an anti-shake lens assembly to avoid the problem of image quality loss during the photographing process.
Embodiments of the present invention will be described in detail below with reference to the accompanying drawings. However, it will be appreciated by those of ordinary skill in the art that in various embodiments of the invention, numerous technical details are set forth in order to provide a better understanding of the present invention. However, the claimed invention may be practiced without these specific details or with various changes and modifications based on the following embodiments.
Fig. 1 is a schematic view of an angle structure of a lens anti-shake device according to an embodiment of the present invention; fig. 2 is a side view of a lens anti-shake assembly according to an embodiment of the invention; fig. 3 is a schematic structural diagram of a lens anti-shake assembly according to another angle in the present invention; fig. 4 is a top view of a lens anti-shake apparatus according to an embodiment of the present invention, and the following describes the lens anti-shake apparatus in detail with reference to the accompanying drawings, specifically as follows:
referring to fig. 1, the lens anti-shake assembly includes:
the lens module 100 and the first coil 102, the first coil 102 is disposed on a side surface of the lens module 100 adjacent to the first magnet 101, wherein the first magnet 101 is fixedly disposed on a side of the first coil 102 away from the lens module 100, and a magnetic field direction inside the first magnet 101 is parallel to the side surface of the lens module 100 where the first coil 102 is disposed and intersects with a bottom of the lens module 100; the first coil 102 is used for transmitting a first positive phase current or a first reverse phase current; referring to fig. 2, the lens module 100 is driven to rotate in the first direction a when the first coil 102 transmits a first positive phase current, or the lens module 100 is driven to rotate in the second direction B when the first coil 102 transmits a first negative phase current.
The first coil 102 is matched with the first magnet 101 fixedly arranged, so that the lens module 100 can rotate in a first direction a and a second direction B, wherein the first direction a can enable the axis S of the lens module to rotate in a clockwise direction, and the second direction B is the reverse direction of the first direction a, that is, the first coil 102 and the first magnet 101 can prevent the lens module from tilting forward or tilting in the use process. When the lens module 100 shakes during use, the first coil 102 generates a magnetic field in a direction which changes with the first magnet 101, and an acting force is generated between the first magnet and the second magnet, so that the lens module 100 can be driven to move, shaking of the whole lens module 100 in the first direction A and the second direction B is counteracted, and image quality loss during shooting is avoided.
Specifically, referring to fig. 2, for example, when the lens module 100 shakes and rotates in the first direction a, a first reverse current is transmitted into the first coil 102 to make the first coil 102 generate a magnetic field, so that the first coil 102 receives an attractive force from the first magnet 101 away from the bottom of the lens module 100 and a repulsive force from the first magnet 101 close to the bottom of the lens module 100, and the first coil 102 drives the lens module 100 to rotate in the second direction B to counteract the shaking effect of the lens module 100; when the lens module 100 shakes and rotates in the second direction B, the first positive phase current is transmitted into the first coil 102, so that the first coil 102 generates a magnetic field, and the first coil 102 receives a repulsive force from the first magnet 101 away from the bottom of the lens module 100 and an attractive force from the first magnet 101 close to the bottom of the lens module 100, so that the first coil 102 drives the lens module 100 to rotate in the first direction a, and the shaking influence of the lens module 100 is counteracted.
It should be noted that the direction of the magnetic field inside the first magnet 101 is parallel to the surface of the lens module 100 on which the first coil 102 is disposed, and intersects with the bottom of the lens module 100, that is, one side of the first magnet 101 close to the bottom of the lens module 100 may be an N pole or an S pole, and one side of the first magnet 101 away from the bottom of the lens module 100 may be the other one of the N pole or the S pole. In an actual use process, the position of the N pole or S pole of the first magnet 101 may be adjusted according to specific conditions, and the first positive phase current and the first negative phase current are correspondingly matched to generate an interaction force to counteract the rotational shake of the lens module 100 in the first direction a and the second direction B, where the specific position of the N pole or S pole of the first magnet 101 is not specifically limited in this embodiment; accordingly, the current direction in the first coil 102 can be switched to cooperate with the first magnet 101 to produce corresponding effects, and the specific current directions of the first positive phase current and the first negative phase current in the first coil 102 are not limited in this embodiment.
It should be noted that, in the present embodiment, the magnetic field inside the first magnet 101 is perpendicular to the bottom surface of the lens module 100; in other embodiments, the angle between the magnetic field direction inside the first magnet 101 and the bottom surface of the lens module 100 may be 30 °, 45 °, or 60 °, so as to adjust the angle between the magnetic field direction inside the first magnet 101 and the bottom surface of the lens module 100 according to the actual usage of the lens module 100, thereby generating a corresponding acting force to keep the lens module 100 relatively still, and this embodiment does not constitute a limitation on the angle between the magnetic field direction inside the first magnet 101 and the bottom surface of the lens module 100.
For the lens module, the lens module may include a lens and a focusing component, and the focusing component may implement focusing of the lens based on one of an open-loop motor, a closed-loop motor, an optical anti-shake motor, or a six-axis motor. It can be understood that the focusing component is arranged in the lens module, so that the lens and the light sensing chip can be focused to present a clear image; the focusing assembly in the lens module can also be provided with an anti-shake device such as an optical anti-shake motor and the like to adjust the position deviation of the lens in the lens module and each direction of the light sensing chip, so that the alignment precision of the lens in the lens module and the light sensing chip is further improved, and the picture has clear picture quality. The first magnet and the first coil are located outside the lens module, and when a focusing component in the lens cannot adjust a large shaking range, the first magnet and the first coil are matched to compensate the whole shaking influence of the lens module, so that the image quality loss in the shooting process is avoided.
As for the first magnet 101, in the present embodiment, the shape of the first magnet 101 is a square block; in other embodiments, the shape of the first magnet 101 may also be a tile shape, a profile shape, a cylindrical shape, a circular ring shape, a circular sheet shape, a bar shape, or the like, and this embodiment does not constitute a limitation on the shape of the first magnet 101. The kind of first magnetite 101 includes samarium cobalt magnet, neodymium iron boron magnet, ferrite magnet, alnico magnet or iron chromium cobalt magnet etc. and this embodiment does not prescribe a limit to the concrete kind of first magnetite 101, and the effect of first magnetite 101 can be realized producing interact's force with first coil 102 to offset the shake influence of camera lens module 100 can.
For the first coil 102, the bundle number of the first coil 102 may be 3, 5, or 10 turns; the area of the first coil 102 may be equal to the area of the first magnet 101 or smaller than the area of the first magnet 101. It can be understood that the first coil 102 is used for generating a corresponding magnetic field after transmitting the first positive phase current or the first negative phase current to cooperate with the fixedly disposed first magnet 101 to generate a corresponding acting force, so as to implement the movement of the lens module 100, and the specific structure of the first coil 102 is not limited in this embodiment.
Further, referring to fig. 3, in some embodiments, the lens anti-shake assembly may further include: a third coil 302 disposed on the surface of the sidewall of the lens module 100, wherein the plane of the third coil 302 is parallel to the plane of the first coil 102, and the third coil 302 is configured to transmit a third normal phase current or a third reverse phase current; a third magnet 301 fixedly arranged on one side of the third coil 302 far away from the lens module 100, wherein the direction of a magnetic field inside the third magnet 301 is vertical to the surface of the lens module 100 with the third coil 302; referring back to fig. 2, the lens module 100 is driven to move in the fifth direction C if the third coil 302 transmits a third positive phase current, or the lens module 100 is driven to move in the sixth direction D if the third coil 302 transmits a third negative phase current.
Through setting up third coil 302 and third magnetite 301, can realize the removal of lens module in fifth direction C and sixth direction D direction, thereby offset the shake influence of lens module 100 on fifth direction C and sixth direction D, wherein, fifth direction C is the direction that makes the axis S translation of lens module 100, sixth direction D is the reverse moving direction of fifth direction C, that is to say, can realize the upper and lower or left and right sides anti-shake of lens module in the use, and then on the basis that is provided with first magnetite 101 and first coil 102, can increase the compensation of lens module 100 different shake directions.
Specifically, referring to fig. 2, for example, when the lens module 100 shakes and moves in the fifth direction C, a third opposite-phase current is transmitted in the third coil 302, so that the third coil 302 generates a magnetic field, and the third coil 302 is acted by the attractive force of the third magnet 301, so that the third coil 302 drives the lens module 100 to move in the sixth direction D, and the shake influence of the lens module 100 is counteracted; when the lens module 100 shakes and moves in the sixth direction D, a third normal phase current is transmitted in the third coil 302, so that the third coil 302 generates a magnetic field, and the third coil 302 is subjected to the repulsive force of the third magnet 301, so that the third coil 302 drives the lens module 100 to move in the fifth direction C, and the shaking effect of the lens module 100 is counteracted.
It should be noted that the direction of the magnetic field inside the third magnet 301 is perpendicular to the surface of the lens module 100 having the third coil 302, that is, one of the N pole and the S pole can be on the side of the third magnet 301 close to the lens module 100, and the other of the N pole and the S pole can be on the side of the third magnet 301 far from the lens module 100. In an actual use process, the position of the N pole or S pole in the third magnet 301 may be adjusted according to specific conditions, and the third normal phase current and the third reverse phase current are correspondingly matched to generate an interaction force to counteract the movement of the lens module 100 in the fifth direction C and the sixth direction D, where the specific position of the N pole or S pole of the third magnet 301 is not specifically limited in this embodiment; accordingly, the current direction in the third coil 302 can be switched to produce corresponding effects in cooperation with the third magnet 301, and the specific current directions of the third positive-phase current and the third negative-phase current in the third coil 302 are not limited in this embodiment.
As for the third magnet 301, in the present embodiment, the shape of the third magnet 301 is a square block; in other embodiments, the third magnet 301 may also have a tile shape, a special shape, a cylindrical shape, a doughnut shape, a disc shape, a rod shape, or the like; in addition, in the present embodiment, the shape of the third magnet 301 is the same as the shape of the first magnet 101, and in other embodiments, the shape of the third magnet 301 may be different from the shape of the first magnet 101, and the present embodiment does not limit the shape of the third magnet 301. The kind of third magnetite 301 includes samarium cobalt magnet, neodymium iron boron magnet, ferrite magnet, alnico magnet or iron chromium cobalt magnet etc. and this embodiment does not prescribe a limit to the concrete kind of third magnetite 301, and the effect of third magnetite 301 can be realized producing interact's force with third coil 302 to offset the shake influence of lens module 100 can.
For third coil 302, the number of turns of third coil 302 may be 3, 5, or 10 turns; the area of the third coil 302 may be equal to that of the third magnet 301, or smaller than that of the third magnet 301. It can be understood that the third coil 302 is used to generate a corresponding magnetic field after a third positive phase current or a third negative phase current is applied, so as to generate a corresponding acting force in cooperation with the fixedly disposed third magnet 301, thereby implementing the movement of the lens module 100, and the specific structure of the third coil 302 is not limited in this embodiment.
With continued reference to fig. 3, in some embodiments, the lens anti-shake assembly further comprises: a fourth coil 402 disposed on the surface of the sidewall of the lens module 100, wherein a plane of the fourth coil 402 is parallel to a plane of a second coil (not shown), perpendicular to a plane of the first coil 102, and perpendicular to a plane of the third coil 302, and the fourth coil 402 is configured to transmit a fourth positive phase current or a fourth negative phase current; a fourth magnet 401 fixedly disposed on a side of the fourth coil 402 away from the lens module 100, wherein a magnetic field inside the fourth magnet 401 is perpendicular to a surface of the lens module 100 having the fourth coil 402; referring to fig. 4, the lens module is driven to move in the seventh direction E when the fourth coil 402 transmits the fourth positive phase current, or the lens module is driven to move in the eighth direction F when the fourth coil 402 transmits the fourth negative phase current.
Through the arrangement of the fourth coil 402 and the fourth magnet 401, the lens module can move in the seventh direction E and the eighth direction F, so as to counteract the shaking influence of the lens module 100 in the seventh direction E and the eighth direction F, wherein the seventh direction E is a direction for translating the axis S of the lens module 100, the eighth direction F is a reverse moving direction of the seventh direction E, and an included angle between a straight line in which the seventh direction E and the eighth direction F are located and a straight line in which the fifth direction C and the sixth direction F are located is 90 °. That is to say, the fourth coil 402 and the fourth magnet 401, and the third coil 302 and the third magnet 301 can prevent the lens module 100 from shaking up and down and left and right during use, and can further increase the compensation effect of the lens module 100 in different shaking directions.
Specifically, referring to fig. 3 and 4, for example, when the lens module 100 shakes and moves in the seventh direction E, a fourth reverse phase current is transmitted in the fourth coil 402, so that the fourth coil 402 generates a magnetic field, and the fourth coil 402 is attracted by the fourth magnet 401, so that the fourth coil 402 drives the lens module 100 to move in the eighth direction F, thereby counteracting the shaking effect of the lens module; when the lens module 100 shakes and moves in the eighth direction F, the fourth normal phase current is transmitted in the fourth coil 402, so that the fourth coil 402 generates a magnetic field, and the fourth coil 402 is subjected to the repulsive force of the fourth magnet 401, so that the fourth coil 402 drives the lens module 100 to move in the seventh direction E, thereby canceling out the shaking effect of the lens module.
It should be noted that the direction of the magnetic field inside the fourth magnet 401 is perpendicular to the surface of the lens module 100 having the fourth coil 402, that is, one of the N pole and the S pole can be on the side of the fourth magnet 401 close to the lens module 100, and the other of the N pole and the S pole can be on the side of the fourth magnet 401 away from the lens module 100. In an actual use process, the position of the N pole or S pole of the fourth magnet 401 may be adjusted according to specific conditions, and the fourth positive phase current and the fourth negative phase current are correspondingly matched to generate an interaction force to counteract the movement of the lens module 100 in the seventh direction E and the eighth direction F, where the specific position of the N pole or S pole of the fourth magnet 401 is not specifically limited in this embodiment; accordingly, the current direction in the fourth coil 402 can be switched to produce a corresponding effect in cooperation with the fourth magnet 401, and the specific current directions of the fourth positive-phase current and the fourth negative-phase current in the fourth coil 402 are not limited in this embodiment.
As for the fourth magnet 401, in the present embodiment, the shape of the fourth magnet 401 is a square block; in other embodiments, the shape of the fourth magnet 401 may also be a tile shape, a profile shape, a cylinder shape, a doughnut shape, a disc shape, a rod shape, or the like; in addition, in the present embodiment, the shape of the fourth magnet 401 is the same as the shape of the first magnet 101, and in other embodiments, the shape of the fourth magnet 401 may be different from the shape of the first magnet 101, and the present embodiment does not limit the shape of the fourth magnet 401. The kind of fourth magnetite 401 includes samarium cobalt magnet, neodymium iron boron magnet, ferrite magnet, alnico magnet or iron chromium cobalt magnet etc. and this embodiment does not inject the specific kind of fourth magnetite 401, and fourth magnetite 401's effect can be realized producing interact's force with fourth coil 402 to offset the shake influence of lens module 100 can.
For the fourth coil 402, the bundle number of the fourth coil 402 may be 3, 5, or 10 turns; the area of the fourth coil 402 may be equal to the area of the fourth magnet 401, or smaller than the area of the fourth magnet 401. It can be understood that the fourth coil 402 is used to generate a corresponding magnetic field after being energized with a fourth positive phase current or a fourth negative phase current, so as to generate a corresponding acting force in cooperation with the fixedly disposed fourth magnet 401, thereby implementing the movement of the lens module 100, and the specific structure of the fourth coil 402 is not excessively limited in this embodiment.
Further, in some embodiments, the lens anti-shake assembly further includes: the second coil is arranged on the surface of the side wall of the lens module, the plane of the second coil is vertical to the plane of the first coil, and is parallel to the plane of the fourth coil, and the second coil is used for transmitting a second positive phase current or a second reverse phase current; the second magnet is fixedly arranged on one side of the second coil, which is far away from the lens module, and the direction of a magnetic field inside the second magnet is parallel to the bottom surface of the lens module and is parallel to the surface of one side of the lens module, which is provided with the second coil; the lens module is driven to rotate in a third direction (direction G shown in fig. 4) when the second coil transmits a second positive phase current, or in a fourth direction (direction H shown in fig. 4) when the second coil transmits a second negative phase current.
Through setting up second coil and second magnetite, can realize the rotation of lens module in third direction G and the ascending rotation of fourth direction H side, thereby offset the shake influence of lens module on third direction G and fourth direction H, wherein, fourth direction H is the reverse direction of third direction G, the plane that third direction G and fourth direction H place is parallel with the bottom surface of lens module, and perpendicular with the axis S of lens module, that is to say, second coil and second magnetite can realize the anti-shake of lens module along lens axis S direction of rotation in the use, can further increase the compensation effect of the different shake directions of lens module.
Specifically, for example, when the lens module shakes and rotates in the third direction G, a second inverse current is transmitted in the second coil, so that a magnetic field generated by the second coil is generated, and the second coil is attracted by the second magnet on the side away from the first magnet and driven by a repulsive force of the second magnet on the side close to the first magnet to rotate the lens module in the fourth direction H; when the lens module shakes and rotates in the fourth direction H, the second positive phase current is transmitted in the second coil, so that the magnetic field generated by the second coil is generated, the second coil is driven by the repulsive force of the second magnet far away from one side of the first magnet, and the attractive force of the second magnet close to one side of the first magnet drives the lens module to rotate in the third direction G, and the shaking influence of the lens module is counteracted.
It should be noted that the direction of the magnetic field inside the second magnet is parallel to the bottom surface of the lens module and parallel to the surface of the lens module having the second coil, that is, one side of the second magnet close to the first magnet may be an N pole or an S pole, and one side of the second magnet far from the first magnet may be the other one of the N pole or the S pole. In an actual use process, the position of the N pole or the S pole of the second magnet can be adjusted according to specific conditions, and the second normal phase current and the second reverse phase current are correspondingly matched to generate an interaction force to counteract the rotation of the lens module in the third direction G and the fourth direction H.
For the second magnet, the shape of the second magnet can be a square block shape, a tile shape, a special shape, a cylinder shape, a circular ring shape, a circular sheet shape, a rod shape or the like; the kind of second magnetite includes samarium cobalt magnet, neodymium iron boron magnet, ferrite magnet, alnico magnet or iron chromium cobalt magnet etc. and this embodiment does not inject the concrete shape and the kind of second magnetite, and the effect of second magnetite can be realized producing interact power with the second coil to the shake influence that offsets the camera lens module can.
For the second coil, the number of the second coil may be 3, 5 or 10 turns; the area of the second coil may be equal to the area of the second magnet, or the area of the second coil may be smaller than the area of the second magnet. It can be understood that the second coil is used for generating a corresponding magnetic field after the second positive phase current or the second negative phase current is electrified so as to generate a corresponding acting force by matching with the fixedly arranged second magnet, thereby realizing the movement of the lens module.
Further, in some embodiments, the lens anti-shake assembly may further include: the first magnetism isolating sheet, the second magnetism isolating sheet, the third magnetism isolating sheet and the fourth magnetism isolating sheet are fixed on the surface of the lens module; the first magnetism isolating sheet is located between the lens module and the first coil, the second magnetism isolating sheet is located between the lens module and the second coil, the third magnetism isolating sheet is located between the lens module and the third coil, and the fourth magnetism isolating sheet is located between the lens module and the fourth coil. Through setting up first magnetism sheet, second magnetism sheet, third magnetism sheet and fourth magnetism sheet, when the inside motor magnetite that has of camera lens module, can prevent the interact power of outside magnetite and inside magnetite, avoid the mobile state confusion of camera lens module, improve the anti-shake function of camera lens anti-shake subassembly.
The first magnetism isolating sheet, the second magnetism isolating sheet, the third magnetism isolating sheet and the fourth magnetism isolating sheet can be made of carbon cold rolled steel materials, the first magnetism isolating sheet, the second magnetism isolating sheet, the third magnetism isolating sheet and the fourth magnetism isolating sheet are used for isolating interaction between magnets inside the lens module and magnets outside the lens module, and specific limitation is not made on materials of the first magnetism isolating sheet, the second magnetism isolating sheet, the third magnetism isolating sheet and the fourth magnetism isolating sheet in the embodiment.
In some embodiments, the first magnetism isolating sheet, the second magnetism isolating sheet, the third magnetism isolating sheet and the fourth magnetism isolating sheet can be connected into a whole to cover the bottom and the side wall of the lens module to realize the function of shielding the magnetic field in all directions.
In some embodiments, the lens anti-shake assembly may further include: the plurality of Hall components are respectively arranged on one side surface of the lens module provided with the first coil, the second coil, the third coil and the fourth coil, and particularly can be arranged in the centers of the first coil, the second coil, the third coil and the fourth coil and are electrically connected with the lens module; the flexible circuit board is used for electrically connecting the lens module with an external device and extends to the outside of the lens module along the bottom of one side of the lens module, which is provided with the first coil; and the control driver is configured to compensate the shaking influence of the lens module based on the position information fed back by the Hall element.
Through setting up a plurality of hall components, can realize that first coil, second coil, third coil and the fourth coil of camera lens module lateral wall are direct through control driver control to when hall components and parts detected the position change, directly convey position information to control driver, control driver directly carries out corresponding current control, thereby form closed loop's control system, in order to realize the position of in time accurately adjusting the camera lens module, avoid the shake to produce the influence to the image quality of the in-process of making a video recording.
To hall components and parts and control driver, its effect forms the closed loop system to make the position of the timely accurate adjustment lens module of camera lens anti-shake subassembly, realize more accurate camera lens anti-shake system, excessive injecing is not done to hall components and parts and control driver to this embodiment.
For the flexible circuit board, be used for making the camera lens module and external device electricity be connected, can understand that, the camera lens module receives the effort of magnetite and coil to take place relative motion, and the flexible circuit board has pliability, can satisfy the motion process of camera lens module not influenced.
With continued reference to fig. 4, in some embodiments, the flexible circuit board 600 is folded in half with the bottom edge of the lens module having the first coil 102 as an axis to form a bending portion 601, and the bending portion 601 is used for stretching or compressing with the movement of the lens module 100. It can be understood that, in the moving process of the lens module 100, the bending portion 601 of the flexible circuit board 600 stretches or compresses along with the lens module 100, so that the shake compensation process of the lens module 100 is not affected, the problem that the position calibration of the lens module 100 is incorrect due to the dragging of the flexible circuit board 600 is avoided, and the influence on the image definition of the lens is avoided.
In this embodiment, the flexible circuit board 600 extends to the outside through the bottom of the side of the lens module 100 having the first coil 102, and is folded along the bottom of the side of the lens module 100 having the first coil 102 as an axis to form a bending portion 601; in other embodiments, the flexible circuit board 600 may extend to the outside along the bottom of the side of the lens module 100 having the second, third, or fourth coils 302, 402, and correspondingly fold along the bottom of the side of the lens module 100 having the second, third, or fourth coils 302, 402 as an axis to form a bending portion.
According to the anti-shake lens assembly provided by the embodiment of the invention, the first coil is arranged on the side wall of the lens module, the first coil corresponds to the fixedly arranged first magnet, the direction of a magnetic field in the first magnet is parallel to the surface of one side of the lens module, which is provided with the first coil, and is intersected with the bottom of the lens module, and the lens module can rotate in the first direction and the second direction under the action of interaction force generated between the first coil and the first magnet. When the lens module shakes in the use process, acting force is generated between the change of the direction of the magnetic field generated by the first coil and the first magnet fixedly arranged, and the lens module can be driven to move, so that the overall shake of the lens module is counteracted, and the image quality loss in the shooting process is avoided.
Referring to fig. 3 and 4, another embodiment of the present invention provides an anti-shake apparatus for improving anti-shake performance of a lens anti-shake assembly, including any one of the lens anti-shake assemblies in the above embodiments, further including:
a housing (not shown in the drawings) having a receiving cavity for receiving the lens anti-shake assembly; the lens module comprises an upper elastic sheet 501 and a lower elastic sheet 502, wherein the inner periphery of the upper elastic sheet 501 is connected with the outer periphery of the top of the lens module 100, the outer periphery of the upper elastic sheet 501 is connected with the inner wall of the top of the shell, the inner periphery of the lower elastic sheet 502 is connected with the outer periphery of the bottom of the lens module 100, the outer part of the lower elastic sheet 502 is connected with the inner wall of the bottom of the shell, and the lens module 100 is suspended in the shell based on the upper elastic sheet 501 and the lower elastic sheet 502.
To the shell, the shell is used for holding camera lens anti-shake subassembly to protect camera lens anti-shake subassembly, the shape and the material of shell can be selected according to the in-service use condition, and excessive restriction is not done to the shell to this embodiment.
For the upper elastic sheet 501 and the lower elastic sheet 502, the upper elastic sheet 501 and the lower elastic sheet 502 provided in this embodiment are suspended in the air and in the housing of the lens module 100, it can be understood that the upper elastic sheet 501 and the lower elastic sheet 502 have a plurality of hollow parts, so that the elasticity of the upper elastic sheet 501 and the lower elastic sheet 502 is increased, and the lens module 100 can move conveniently, which is beneficial to the anti-shake control of the lens module 100. The upper spring plate 501 and the lower spring plate 502 provided in the present embodiment do not form a shape limitation for the upper spring plate 501 and the lower spring plate 502, and the upper spring plate 501 and the lower spring plate 502 with different shapes may be designed according to specific use cases.
According to the anti-shake device provided by the embodiment of the invention, the upper elastic sheet and the lower elastic sheet are respectively fixed at the top and the bottom of the lens module, so that the lens module is suspended in the shell based on the upper elastic sheet and the lower elastic sheet, and the lens module is protected; simultaneously, first magnetite, second magnetite, third magnetite and fourth magnetite can be corresponding respectively fix the inner wall at the shell, with first coil, second coil, third coil and fourth coil one-to-one to constitute the structure of little cloud platform, make the camera lens module unsettled in the shell of anti-shake device, and realize the anti-shake based on first magnetite, second magnetite, third magnetite and fourth magnetite, improve the anti-shake performance of camera lens anti-shake subassembly.
Another embodiment of the present invention further provides an electronic device, wherein the anti-shake device is adopted to achieve anti-shake of a lens. It can be understood that electronic equipment can be products such as cell-phones, camera or panel computer that have the function of making a video recording, and the anti-shake with the realization process of making a video recording all belongs to the scope that this application protected based on above-mentioned anti-shake device.
It will be understood by those of ordinary skill in the art that the foregoing embodiments are specific examples for carrying out the invention, and that various changes in form and details may be made therein without departing from the spirit and scope of the invention in practice.
Claims (10)
1. A lens anti-shake assembly, comprising:
the magnetic field direction in the first magnet is parallel to the surface of one side of the lens module, which is provided with the first coil, and is intersected with the bottom of the lens module;
the first coil is used for transmitting a first positive phase current or a first reverse phase current, wherein the lens module is driven to rotate along a first direction under the condition that the first coil transmits the first positive phase current, or the lens module is driven to rotate along a second direction under the condition that the first coil transmits the first reverse phase current.
2. The lens anti-shake assembly as defined in claim 1, further comprising:
the second coil is arranged on the surface of the side wall of the lens module, the plane of the second coil is vertical to the plane of the first coil, and the second coil is used for transmitting a second positive phase current or a second reverse phase current;
the second magnet is fixedly arranged on one side, far away from the lens module, of the second coil, and the direction of a magnetic field inside the second magnet is parallel to the bottom surface of the lens module and is parallel to the surface of one side, with the second coil, of the lens module;
the lens module is driven to rotate along a third direction under the condition that the second coil transmits the second positive-phase current, or the lens module is driven to rotate along a fourth direction under the condition that the second coil transmits the second negative-phase current.
3. The lens anti-shake assembly as defined in claim 2, further comprising:
the third coil is arranged on the surface of the side wall of the lens module, the plane of the third coil is parallel to the plane of the first coil, and the third coil is used for transmitting a third normal-phase current or a third reversed-phase current;
the third magnet is fixedly arranged on one side, far away from the lens module, of the third coil, and the direction of a magnetic field inside the third magnet is perpendicular to the surface, with the third coil, of the lens module;
and the lens module is driven to move in a fifth direction under the condition that the third coil transmits the third positive-phase current, or the lens module is driven to move in a sixth direction under the condition that the third coil transmits the third negative-phase current.
4. The lens anti-shake assembly as defined in claim 3, further comprising:
the fourth coil is arranged on the surface of the side wall of the lens module, the plane where the fourth coil is located is parallel to the plane where the second coil is located, and the fourth coil is used for transmitting a fourth normal-phase current or a fourth reverse-phase current;
the fourth magnet is fixedly arranged on one side of the fourth coil, which is far away from the lens module, and the direction of a magnetic field in the fourth magnet is vertical to the surface of the lens module, which is provided with the fourth coil;
the lens module is driven to move along a seventh direction under the condition that the fourth coil transmits the fourth positive-phase current, or the lens module is driven to move along an eighth direction under the condition that the fourth coil transmits the fourth negative-phase current.
5. The lens anti-shake assembly as defined in claim 4, further comprising:
the first magnetism isolating sheet, the second magnetism isolating sheet, the third magnetism isolating sheet and the fourth magnetism isolating sheet are fixed on the surface of the lens module;
the first magnetism isolating sheet is located between the lens module and the first coil, the second magnetism isolating sheet is located between the lens module and the second coil, the third magnetism isolating sheet is located between the lens module and the third coil, and the fourth magnetism isolating sheet is located between the lens module and the fourth coil.
6. The lens anti-shake assembly as defined in claim 4, further comprising:
the plurality of Hall components are respectively arranged on one side surface of the lens module provided with the first coil, the second coil, the third coil and the fourth coil and are electrically connected with the lens module;
the flexible circuit board is used for enabling the lens module to be electrically connected with an external device and extends to the outside of the lens module along the bottom of one side of the lens module, which is provided with the first coil;
and the control driver is configured to compensate the shaking influence of the lens module based on the position information fed back by the Hall element.
7. The lens anti-shake apparatus according to claim 6, wherein the flexible printed circuit board is folded in half with a bottom edge of the lens module having the first coil as an axis to form a bending portion, and the bending portion is adapted to be stretched or compressed with the movement of the lens module.
8. The lens anti-shake assembly of claim 1, wherein the lens module includes a lens and a focus component that effects focusing of the lens based on one of an open-loop motor, a closed-loop motor, an optical anti-shake motor, or a six-axis motor.
9. An anti-shake apparatus comprising the lens anti-shake assembly according to any one of claims 1 to 8, comprising:
a housing having a receiving cavity for receiving the lens anti-shake assembly;
the inner periphery of the upper elastic sheet is connected with the outer periphery of the top of the lens module, the outer periphery of the upper elastic sheet is connected with the inner wall of the top of the shell, the inner periphery of the lower elastic sheet is connected with the outer periphery of the bottom of the lens module, the outer periphery of the lower elastic sheet is connected with the inner wall of the bottom of the shell, and the lens module is suspended in the shell based on the upper elastic sheet and the lower elastic sheet.
10. An electronic device implementing lens anti-shake using the anti-shake apparatus according to claim 9.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202210731387.2A CN115167062A (en) | 2022-06-24 | 2022-06-24 | Lens anti-shake assembly, anti-shake device and electronic equipment |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202210731387.2A CN115167062A (en) | 2022-06-24 | 2022-06-24 | Lens anti-shake assembly, anti-shake device and electronic equipment |
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| CN115167062A true CN115167062A (en) | 2022-10-11 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN202210731387.2A Pending CN115167062A (en) | 2022-06-24 | 2022-06-24 | Lens anti-shake assembly, anti-shake device and electronic equipment |
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| CN102043226A (en) * | 2009-10-20 | 2011-05-04 | 思考电机（上海）有限公司 | Lens driving device, automatic focusing camera function unit and mobile phone |
| CN102650722A (en) * | 2011-02-24 | 2012-08-29 | 思考电机（上海）有限公司 | Lens driving device, auto-focusing camera, and mobile terminal device with camera |
| CN105573014A (en) * | 2016-01-22 | 2016-05-11 | 南昌欧菲光电技术有限公司 | Camera module with focusing and anti-shaking functions |
| CN108873562A (en) * | 2017-05-08 | 2018-11-23 | 日本电产三协株式会社 | Optical unit with shake correcting function |
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2022
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Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102043226A (en) * | 2009-10-20 | 2011-05-04 | 思考电机（上海）有限公司 | Lens driving device, automatic focusing camera function unit and mobile phone |
| CN102650722A (en) * | 2011-02-24 | 2012-08-29 | 思考电机（上海）有限公司 | Lens driving device, auto-focusing camera, and mobile terminal device with camera |
| CN105573014A (en) * | 2016-01-22 | 2016-05-11 | 南昌欧菲光电技术有限公司 | Camera module with focusing and anti-shaking functions |
| CN108873562A (en) * | 2017-05-08 | 2018-11-23 | 日本电产三协株式会社 | Optical unit with shake correcting function |
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