CAMERA DEVICE AND PORTABLE ELECTRONIC DEVICE INCLUDING THE SAME

The camera device includes a base, a lens unit having an optical axis, a camera element unit, a first movable frame, a second movable frame, multiple first balls, multiple second balls, a first drive mechanism, and a second drive mechanism. The first movable frame is supported on the base by the multiple first balls. The first drive mechanism is configured to drive the first movable frame to rotate and/or move radially along the optical axis. The second movable frame is supported on the first movable frame by the multiple second balls, and the camera element unit is fixed to the second movable frame. The second drive mechanism is configured to drive the camera element unit to move along the optical axis and/or deflect along a direction perpendicular to the optical axis. The present application can achieve more efficient anti-shaking correction and autofocusing, and improve the quality of captured images.

CROSS REFERENCE TO RELATED APPLICATIONS

The present application claims the benefit of priority under the Paris Convention to Japanese Patent Application No. 2023134562 filed on Aug. 22, 2023, which is incorporated herein by reference in its entirety.

TECHNICAL FIELD

The embodiments of the present application relate to the technical field of camera devices, in particular to a camera device and a portable electronic device including the same.

BACKGROUND

With the rapid development of photography technology, a camera device including a lens is widely applied to various portable electronic devices, such as a portable phone, a tablet, etc. A drive mechanism configured to drive the lens to move is widely applied to various camera devices.

In the related technologies, the drive mechanism generally includes a coil and a magnet, and the coil is fixed on the outer circumference of a lens frame. After the coil is energized to generate a magnetic field, the lens is driven by the electromagnetic force to move along an optical axis to achieve focusing function, and the lens can move on a plane perpendicular to the optical axis to achieve correction for hand shaking.

At present, in the case where an optical system has a longer optical axis length or a glass lens is used to improve the imaging quality of camera devices, sometimes the weight of the lens increases significantly. Therefore, in response to the lens being driven by the drive mechanism, in order to enable the drive mechanism to drive a heavy lens to move, it is necessary for the drive mechanism to provide a large driving force. In this way, the drive mechanism or camera device needs to develop towards a “large-scale” direction, which is inconsistent with the current “miniaturization” development direction of camera devices.

In addition, in the drive mechanism in the related technologies, the focus drive is arranged on the lens and the correction for hand shaking is arranged on the sensor, which makes it difficult to align the lens, the focus drive, and the correction drive for hand shaking during assembly, resulting in reduced optical performance.

Therefore, it is necessary to provide a camera device that develops towards miniaturization and simplifies the alignment of the optical axis during assembly.

SUMMARY

An objective of the present application is to provide a camera device and a portable electronic device to solve the technical problems in the related technologies, which can reduce the occupied space and simplify the alignment of the optical axis during assembly.

In a first aspect, camera device is provided according to the present application, and the camera device includes a casing having an accommodating cavity, a base fixed to the casing, a lens unit having an optical axis and fixed to the casing, and a camera element unit arranged in the casing, a first movable frame, a second movable frame, multiple first balls, multiple second balls, a first drive mechanism, and a second drive mechanism;where a first through groove is formed on the first movable frame along the optical axis, and the first movable frame is supported on the base by the multiple first balls;where the second movable frame is supported on the first movable frame by the multiple second balls, and a second through groove is formed on the second movable frame along the optical axis, a first annular protrusion protruding from an inner wall of the second through groove is formed at a backlight side along the optical axis, the first annular protrusion extends at least partially into the first through groove, and the camera element unit is fixed to the first annular protrusion and arranged opposite to the second through groove along the optical axis;where the first drive mechanism is configured to drive the first movable frame to move to enable the second movable frame and the camera element unit to rotate along the optical axis as a centerline and/or move in a plane perpendicular to the optical axis, and the second drive mechanism is configured to drive the second movable frame to move to enable the camera element unit to move along the optical axis and/or deflect along a direction perpendicular to the optical axis.

As an improvement, the first drive mechanism includes a first magnet fixed on the first movable frame and a first coil arranged on the base and opposite to the first magnet, the second drive mechanism includes a second coil arranged on the second movable frame and opposite to the first magnet, there are multiple first magnets, multiple first coils, multiple second coils, and the multiple first magnets are in a one-to-one correspondence to the multiple first coils and the multiple second coils.

As an improvement, the first drive mechanism further includes multiple first yokes and a first circuit board arranged on the base, the multiple first coils and the multiple first yokes are both arranged on the first circuit board, and the multiple first coils are in a one-to-one correspondence to the multiple first yokes;where the second drive mechanism further includes multiple second yokes and a second circuit board arranged on the second movable frame, the second coil and the multiple second yokes are both arranged on the second circuit board, and the multiple second coils are in a one-to-one correspondence to the multiple second yokes.

As an improvement, the multiple first coils include four first coils symmetrically distributed with the optical axis as a centerline, and two adjacent first coils are arranged orthogonally to each other;where the multiple second coils include four second coils symmetrically distributed with the optical axis as a centerline, and two adjacent second coils are arranged orthogonally to each other.

As an improvement, both the multiple first coils and the multiple second coils are runway shaped coils, and the camera device further includes a position sensor arranged within the multiple first coils and the multiple second coils.

As an improvement, the second movable frame has multiple guide grooves at the backlight side along the optical axis, an extending angel of a respective guide groove in the multiple guide grooves forms a preset angle with a plane perpendicular to the optical axis, the multiple guide grooves are in a one-to-one correspondence to the multiple second balls, an end of each respective of second ball close to the second movable frame extends into the respective guide groove in the multiple guide grooves and is in a rolling connection to the second movable frame, and an end of each respective of second ball close to the first movable frame is a rolling connection to the first movable frame.

As an improvement, the second ball includes magnetic material.

As an improvement, the base is provided with a first groove on a light receiving side along the optical axis, the first movable frame is provided with a second groove on the backlight side along the optical axis, the first groove has a first plate body, the second groove has a second plate body, and the multiple first balls are at least partially accommodated in the first groove and arranged between the first plate body and the second plate body.

As an improvement, there are multiple first shock absorbers between the first movable frame and the base, and multiple first shock absorbers are arranged at intervals in a circle on the base;where there are multiple second shock absorbers arranged between an outer wall surface of the first annular protrusion and an inner wall surface of the first through groove, and the multiple second shock absorbers are arranged at intervals in a circle within the first through groove.

As an improvement, a flexible conductive substrate is arranged in the accommodating cavity, the flexible conductive substrate is a plate structure with at least two bends or a plate spring shaped structure that can be driven in a plane perpendicular to the optical axis, the accommodating cavity has space for curved surfaces of the flexible conductive substrate to pass, one end of the flexible conductive substrate is connected to the camera element unit, and the other end of the flexible conductive substrate is fixed to the base and at least partially extends outside the accommodating cavity.

As an improvement, the camera element unit includes an optical filter and an image sensor arranged sequentially along a light incident direction, both the optical filter and the image sensor are fixed in a mounting base, and the mounting base is integrally formed with the second movable frame.

As an improvement, the first movable frame is configured to extend at the backlight side along the optical axis to form a cylinder, the cylinder has an inner wall surface flushed with the outer wall surface of the first annular protrusion, and a first position-limiting ring protrudes from the inner wall surface of the cylinder to the first annular protrusion;where the outer wall surface of the first annular protrusion is provided with a second position-limiting ring protruding to the cylinder;where the multiple second balls are movably arranged between the first position-limiting ring and the second position-limiting ring, and are in a rolling connection to the inner wall surface of the cylinder and the outer wall surface of the first annular protrusion.

As an improvement, the first movable frame has an accommodating groove at a light receiving side along the optical axis, a predetermined angle is formed between an extending direction of an inner wall surface on one side of the accommodating groove and the optical axis, the second movable frame has a protrusion block formed opposite to the accommodating groove, and the protrusion block extends along the optical axis to the first movable frame;an end of each respective second ball in the multiple second balls close to the first movable frame is configured to extend into the accommodating groove and is in a rolling connection to the first movable frame, and an end of each respective second ball in the multiple second balls close to the second movable frame is in a rolling connection to the protrusion block.

As an improvement, the lens unit is a zoom lens structure or a periscope lens structure.

As an improvement, the lens unit further includes an aperture structure configured to optically control an amount of light.

In a second aspect, a portable electronic device is further provided according to the present application, and the portable electronic device includes the camera device according to any one above.

Compared with the related technologies, in the camera device of the present application, the first drive mechanism is used to drive the first movable frame and drive the second movable frame and the camera element unit to perform correction for hand shaking, and the second drive mechanism is used to drive the second movable frame and drive the camera element unit to perform focusing adjustment and/or correction for hand shaking, thereby achieving optical anti-shaking and automatic focusing along all six axis direction only by moving the camera element unit, which is conducive to achieving miniaturization of the camera device. In addition, the lens unit is fixed, and the camera element unit is arranged on the second movable frame, so that the optical alignment on the existing anti-shaking correction component and the possible secondary optical offset from the optical alignment with the lens unit can be limited to a point where the anti-shaking correction component is aligned with the fixed lens unit. Therefore, the optical axis alignment during the assembly of the camera device becomes simpler, which minimizes the reduction of optical performance.

By fixing the lens unit, the lens unit will not lose control even when it falls, which causes the impact caused by the contact between the weighted lens unit and other components to disappear. The design difficulty of the impact countermeasure when the lens unit falls is reduced, and the alignment of the lens unit is also easier. It can also minimize the openings formed by the lens unit protruding over the electronic device such as a smartphone. Moreover, the action of correction for hand shaking and auto focusing in the present application is concentrated in the camera element unit, so that the camera element unit can be assembled with lens units with various different structures and drive methods.

The multiple first balls are used to support the first movable frame, and the multiple second balls are used to support the second movable frame, which avoids drive faults and effect on imaging performance caused by the deformation of an elastic component in response the elastic component being used to support the movable frame body in the existing structure, and eliminates unnecessary resonance modes of the elastic component and contribute to stable control of correction for hand shaking.

In summary, the camera device of the present application can achieve more efficient anti-shaking correction and autofocusing in a miniaturized portable electronic device, thereby improving the imaging quality.

REFERENCE NUMERALS

DETAILED DESCRIPTION

The embodiments described below with reference to the accompanying drawings are exemplary and are only intended to explain the present application and cannot be interpreted as limitations on the present application.

First Embodiment

As shown inFIG.1toFIG.19, a camera device100is provided according to embodiments of the present application, and the camera device100includes a casing11having an accommodating cavity11a, a base15fixed to the casing11, a lens unit12fixed to the casing11and having an optical axis300, and an camera element unit arranged in the accommodating cavity11a, a first movable frame16, a second movable frame17, multiple first balls18, multiple second balls19, a first drive mechanism, and a second drive mechanism.

In a feasible embodiment, the casing11is a split type structure for easy assembly and maintenance. Specifically, the casing11includes a bottom plate112and a housing111configured to cover the bottom plate112. The housing111is a box structure having an opening on the bottom, and the accommodating cavity11ais formed by the housing111and the bottom plate112. The housing111is provided with a through hole113in communication with the accommodating cavity11a. The lens unit12is fixed inside the casing11by bonding, screws or other connection methods, and at least part of the lens units12protrudes from the through hole113. Preferably, the lens unit12further includes an aperture structure that can control the amount of light optically. The camera element unit has an optical axis300, and the axis of the through hole113coincides with the optical axis300.

The base15is fixed on the bottom wall surface of the accommodating cavity11a, the first movable frame16has a first through groove161penetrating along the optical axis300, and the first movable frame16is supported on the base15by multiple first balls in a rolling connection manner. The first movable frame16is arranged on the base15at a light receiving side along the optical axis300. In a feasible embodiment, there are 3 first balls18arranged roughly equidistant in a circumferential direction of the optical axis300, to improve the stability and reliability of the support.

The first drive mechanism is configured to drive the first movable frame16to move to drive the second movable frame17and the camera element unit to rotate along the optical axis300as the centerline and/or move in a plane perpendicular to the optical axis300. The first drive mechanism and the first movable frame16form an anti-shaking correction component. In response to the user holding the electronic device in hand for shooting, the shaking of the camera device100caused by hand shaking can be corrected in the three-axis direction.

The second movable frame17is supported on the first movable frame16by multiple second balls19, and the second movable frame17has a second through groove171penetrating along the optical axis300. In a feasible embodiment, there are 4 second balls19arranged roughly equidistant in a circumferential direction of the optical axis300, to improve the stability and reliability of the support.

As shown inFIG.1andFIG.4, a first annular protrusion172is formed in the second through groove171at a backlight side along the optical axis300, and the camera element unit includes an optical filter13and an image sensor14arranged sequentially along the incident direction of the optical axis300. The optical filter13and the image sensor14are fixed in the mounting base36. Optionally, the mounting base36can be integrally formed at the bottom of the first annular protrusion172. In some embodiments, the optical filter13is an infrared cutting filter13, which typically protects the image sensor14and blocks harmful wavelengths, filters out unwanted light by passing through visible light.

The second drive mechanism is configured to drive the second movable frame17to move to drive the camera element unit to move along the optical axis300and/or deflect in a direction perpendicular to the optical axis300, which achieves automatic focusing of the camera device and anti-shaking in two axis directions.

In the present application, the first drive mechanism is used to drive the first movable frame16and drive the second movable frame17and the camera element unit to perform correction for hand shaking, and the second drive mechanism is used to drive the second movable frame17and drive the camera element unit to perform focusing adjustment and/or correction for hand shaking, thereby achieving optical anti-shaking and automatic focusing along all six axis direction only by moving the camera element unit, which is conducive to achieving miniaturization of the camera device. In addition, the lens unit is fixed, and the camera element unit is arranged on the second movable frame17, so that the optical alignment on the existing anti-shaking correction component and the possible secondary optical offset from the optical alignment with the lens unit can be limited to a point where the anti-shaking correction component is aligned with the fixed lens unit. Therefore, the optical axis alignment during the assembly of the camera device becomes simpler, which minimizes the reduction of optical performance.

By fixing the lens unit, the lens unit will not lose control even when it falls, which causes the impact caused by the contact between the weighted lens unit and other components to disappear. The design difficulty of the impact countermeasure when the lens unit falls is reduced, and the alignment of the lens unit is also easier. It can also minimize the openings formed by the lens unit protruding over the electronic device such as a smartphone. Moreover, the action of correction for hand shaking and auto focusing in the present application is concentrated in the camera element unit, so that the camera element unit can be assembled with lens units with various different structures and drive methods.

The multiple first balls18are used to support the first movable frame16, and the multiple second balls19are used to support the second movable frame17, which avoids drive faults and effect on imaging performance caused by the deformation of an elastic component in response the elastic component being used to support the movable frame body in the existing structure, and eliminates unnecessary resonance modes of the elastic component and contribute to stable control of correction for hand shaking.

In the embodiments provided according to the present application, referring toFIG.1andFIG.4, the first drive mechanism includes a first coil20, a first yoke21, a first magnet22, and a first circuit board23. The first circuit board23is arranged on the base15, the first coil20and the first yoke21are arranged on the first circuit board23. The first magnet22is arranged on the first movable frame16, and there are multiple first magnets22, multiple first coils20, and multiple first yokes21. The multiple first magnets22are in a one-to-one correspondence to the multiple first coils20, and the multiple first yokes21. The multiple first coils20are arranged between the multiple first magnets22and the multiple first yokes21.

In response to the multiple first coils20being energized, a Lorentz force is generated in the multiple first coils20through the interaction between the magnetic field of the multiple first magnets22and the current flowing through the multiple first coils20. The direction of the Lorentz force is orthogonal to the direction of the magnetic field of the multiple first magnets22and the direction of the current flowing through the multiple first coils20. Due to the fixation of the first coil20, the reaction force acts on the multiple first magnets22. The reaction force becomes the driving force of the first movable frame16, and the first movable frame16having the first magnet22moves in a plane orthogonal to the direction of the optical axis300or rotates around the optical axis300, thereby performing anti-shaking correction.

The first coil20can change the translation or rotation direction of the first movable frame16by changing the direction of the current, so that the first movable frame16can perform translation, clockwise rotation, and counterclockwise rotation in a plane perpendicular to the optical axis300.

In a feasible embodiment, there are four first coils20, as shown inFIG.9toFIG.11. The four first coils20are symmetrically distributed around the optical axis300, and are arranged on four sides of the square structure. The extending directions of adjacent first coils20are orthogonal, and the two first coils20arranged on the diagonal position are parallel, while the two first coils20on the same side are perpendicular to each other. Those of ordinary skills in the art can be aware that the first magnet22and the first yoke21corresponding to the first coil20are also four, all of which is in a one-to-one correspondence to the four first magnets22and the four first yokes21.

As shown inFIG.9, two first coils20at a diagonal position are energized, and the first coil20in the energized state is subjected to a corresponding force of the first magnet22. However, the first coil20that is not energized is not subjected to the corresponding force of the first magnet22, so that the first movable frame16can translate in a direction perpendicular to the optical axis300. As shown inFIG.10, at this time, the two first coils20at the other diagonal position are energized, If the other two first coils20are not energized, the first movable frame16can be moved in another direction perpendicular to the optical axis300.

As shown inFIG.11, currents with different directions are applied to the four first coils20, and the force exerted on the four first magnets22causes the first movable frame16to rotate clockwise or counterclockwise.

In the embodiment provided according to the present application, the first yoke21is installed on the first circuit board23to form a structure that is pulled closer to the center of the first magnet22, with a magnetic spring effect that always pulls the first movable frame16closer to the center of the optical axis300through the first yoke21and the first magnet22. The first yoke21interacts with the first magnet22, which achieves efficient loosening elimination, which can reduce the tilt of the first movable frame16relative to the optical axis300, thereby playing a role in motion reset and compressing the first ball18.

Furthermore, as shown inFIG.4,FIG.6, andFIG.7, the base15is provided with a first groove24on the light receiving side along the optical axis300. The first movable frame16is provided with a second groove26on the backlight side along the optical axis300. The first groove24is provided with a first plate body25, and the second groove26is provided with a second plate body27. The multiple first balls18are arranged between the first plate body25and the second plate body27, and an end of each respective first ball18close to the base15extends into the first groove24and is connected to the first plate body25in a rolling manner. An end of each respective first ball18close to the first movable frame16extends into the second groove26and is connected to the second plate body27in a rolling manner, so that the first movable frame16can move back and forth on a plane orthogonal to the optical axis300or rotate around the optical axis300. The multiple first plate bodies25are in one-to-one correspondence to the multiple second plate bodies27, and the multiple first ball bodies18, which provides a balanced and uniformly distributed support force, and prevent the first movable frame16from tilting during movement.

By accommodating the first ball18into the first groove24and the second groove26, the movement of the first ball18can be limited to avoid excessive movement of the first movable frame16. In addition, there is an overlap area between the projection of the first ball18in the orthogonal direction of the optical axis300and the base15and the first movable frame16. The base15, the first movable frame16, and the first ball18can be overlapped along a thickness direction, which reduces the space occupied by the first ball18, and is conducive to the miniaturization of the camera device100and improves protection against falling impacts.

In the embodiments provided according to the present application, as shown inFIG.1andFIG.4, there are multiple first shock absorbers28between the first movable frame16and the base15, and multiple first shock absorbers28are arranged in circular intervals on the base15to improve balanced and dispersed buffering and support effects. Those of ordinary skills in the art can know that the number and distribution of the first shock absorbers28can be determined according to actual situations, which will not be limited thereto. The first shock absorber28is preferably a shock absorbing gel, which can have a more accurate shock absorbing function by generating the shock absorption effect of the sudden power on control pulsation action for the shock absorbing correction component. In this embodiment, the first shock absorber28is arranged between the first magnet22and the base15. As shown inFIG.1,FIG.4, andFIG.7, the first annular protrusion172extends into the first through groove161, and there are multiple second shock absorbers29between the outer wall of the first annular protrusion172and the inner wall of the first through groove161. Multiple second shock absorbers29are arranged in circular intervals within the first through groove161to improve balanced and dispersed buffering and support effects. Those of ordinary skills in the art can know that the number and distribution of the second shock absorbers29can be determined according to actual situations, which will not be limited thereto. The first shock absorber29is preferably a shock absorbing gel, which can have a more accurate shock absorbing function by generating the shock absorption effect of the sudden power on control pulsation action for the second movable frame17.

In the embodiment provided according to the present application, the second drive mechanism includes a second yoke30, a second coil31, and a second circuit board32. The second circuit board32is arranged on the second movable frame17, the first coil20and the second coil31are both runway shaped coils, the second coil31and the second yoke30are both arranged on the second circuit board32. There are multiple second yokes30and multiple second coils31. The multiple first magnets22are in a one-to-one correspondence to the multiple second coils31and multiple second yokes30. Each respective second coil31is arranged between a respective first magnet22and a respective second yoke30.

In response to the second coil31being energized, the interaction between the magnetic field of the first magnet22and the current flowing in the second coil31generates a Lorentz force in the second coil31, which becomes the driving force of the second movable frame17. The second movable frame17having the second coil31moves along the optical axis300or deflects in a direction perpendicular to the optical axis300, thereby performing automatic focusing and correction for hand shaking.

The second coil31can change the direction of the current, to change the direction of movement of the second movable frame17along the optical axis300or the direction of the second movable frame17deflecting along the direction perpendicular to the optical axis300.

In a feasible embodiment, there are four second coils31, as shown inFIG.12andFIG.13. The four second coils31are symmetrically distributed around the axis of the optical axis300, and are arranged on the four sides of the square structure. The extending directions of adjacent second coils31are orthogonal, and the two second coils31on the diagonal position are parallel, and the two second coils31on the same side are perpendicular to each other. Those of ordinary skills in the art can be aware that there are also four second yokes30corresponding to the second coils31.

The first coils20and the second coils31can share the first magnet22for driving, so there is no need to install additional magnets or drive structures, which helps to achieve the miniaturization and easy assembly brought about by the significant reduction of components.

As shown inFIG.12, in response to the second coils31being energized, the second coils31on both sides are subjected to a force in the same direction, which causes the second movable frame17on which the second coil31is arranged to ascend or descend along the optical axis300.

As shown inFIG.13, in response to the second coils31being energized, the second coils31on both sides are subjected to forces with opposite directions, which causes the second movable frame17on which the second coil31is arranged to deflect in a direction perpendicular to the optical axis300as the centerline.

Furthermore, as shown inFIG.8, the second movable frame17is provided with a guide groove173on the backlight side along the optical axis300. The extending direction of the guide groove173forms a preset angle with a plane perpendicular to the optical axis300. An end of each respective second ball19close to the second movable frame17extends into the guide groove173and is connected to the second movable frame17in a rolling manner, and an end of each respective second ball19close to the first movable frame16is connected to the first movable frame16in a rolling manner, to facilitate the deflection of the second movable frame17.

In a feasible embodiment, the second ball19includes magnetic material, and the first magnet22attracts the second yoke30arranged on the second movable frame17and the second ball19with magnetism. In summary, in response to the second movable frame17deflecting along the optical axis300and/or rotate around the direction perpendicular to the optical axis, the second ball19is forced to roll outward or inward by the guide groove173inclined to the second movable frame17. However, due to the magnetism of the second ball19, the attraction causes the second ball19to return to the center position of the first magnet22, which provides a returning force for the movement of the second movable frame17.

Furthermore, the base15, the first movable frame16, and the second movable frame17are magnetically attached to each other, but by deliberately adopting a structure that can be separated when impact is applied, the impact can be dispersed at a certain strength position of the component rather than concentrated on the first ball18and the second ball19. Thus, it is possible to prevent the failure of the support components (e.g., first ball18and second ball19) that become weak points of the movable structure (e.g., first movable frame16and second movable frame17).

As a result, it is not possible to cause poor driving caused by damage to the support components, which is common in camera devices100in the market. In this structure, a safe structure that can be fully re driven even after the impact is applied can be achieved.

In some embodiments, the camera device100further includes a position sensor arranged within the first coils20and the second coils31. Specifically, the position sensor includes a and a second position detecting element34.

As shown inFIG.1andFIG.4, the first position detecting element33configured to detect the magnetic flux of the first magnet22is arranged on the first circuit board23. Preferably, there are at least three first position detecting elements33. By detecting the magnetic flux of the first magnet22, the correct position detecting and anti-shaking control of the first movable frame16can be carried out, which not only can detect the movement of the first movable frame16on a plane orthogonal to the optical axis300, but also can detect a degree of the first movable frame16rotating relative to the optical axis300, thereby enabling accurate position detecting and anti-shaking control.

Reference is continuously made toFIG.1andFIG.4, the second position detecting element34configured to detect the magnetic flux of the first magnet22is arranged on the second circuit board32. It is preferred that there are at least three second position detecting elements34. By detecting the magnetic flux of the first magnet22, it is possible to detect the position of the second movable frame17moving along the optical axis or rotating around the axis orthogonal to the optical axis300, and detect the position during pitching and deflecting movements, which enables accurate position detecting and anti-shaking control.

As shown inFIG.5, the signal lines and power lines of the first coil20, the first position detecting element33, the second coil31, and the second position detecting element34can be connected to the camera element unit through the flexible conductive substrate35and wired to the outer side of the anti-shaking correction component and the focusing adjustment component, so as not to hinder the operation of the anti-shaking correction component and the focusing adjustment component. The flexible conductive substrate35is a board structure with at least two bends. One end of the flexible conductive substrate35is connected to the camera element unit, and the other end of the flexible conductive substrate35is fixed to the base15and extends at least partially to the outside of the accommodating cavity11a. The accommodating cavity11a is provided with a space for free movement, so that when the bending surface of the flexible conductive substrate35moves on the plane, it will not hinder movement. In addition, the flexible conductive substrate35may also have a plate spring shaped surface structure that can be driven in a plane direction perpendicular to the optical axis, such as the so-called “telescopic FPC”.

Optionally, the form of the guide groove for accommodating the second balls19can be designed according to specific needs, which will not limited thereto. For example, as shown inFIG.14, there is a guide groove173at the corresponding positions of the first movable frame16and the second movable frame17. The guide groove173is a V-shaped structure, and the two ends of the second ball19are connected to the two opposite guide grooves173.

As shown inFIG.15, there is a guide groove173on the first movable frame16, which is a V-shaped structure. The second movable frame17is a plane. One end of the second ball19abuts against the guide groove173, and the other end of the second ball19abuts against the second movable frame17.

As shown inFIG.16, there is a guide groove173on the first movable frame16, which is a square groove. The second movable frame17is a plane. One end of the second ball19abuts against the guide groove173, and the other end of the second ball19abuts against the second movable frame17.

As shown inFIG.17, there is a guide groove173on the second movable frame17, which is a square groove. The first movable frame16is a plane. One end of the second ball19abuts against the guide groove173, and the other end of the second ball19abuts against the first movable frame16.

Second Embodiment

As shown inFIG.18, unlike the first embodiment, multiple first magnets22are arranged in the circumferential direction of the first through groove161, and the first movable frame16forms a cylinder162on the backlight side along the optical axis300. The inner wall surface of the cylinder162is flush with the outer wall surface of the first annular protrusion172, and a first position-limiting ring163protrudes towards the first annular protrusion172on the inner wall surface of the cylinder162.

A second position-limiting ring174protrudes from the outer wall surface of the first annular protrusion172towards the cylinder162.

The second ball19is arranged between the first position-limiting ring163and the second position-limiting ring174. A side of each respective second ball19close to the cylinder162is in a rolling connection to the inner wall of the cylinder162, and a side of each respective second ball19close to the first annular protrusion172is in a rolling connection to the outer wall of the first annular protrusion172.

The second coil31and the second yoke30are both arranged on the outer wall surface of the first annular protrusion172, and the second coil31is arranged between the first magnet22and the second yoke30.

In this embodiment, the second ball19includes non-magnetic material, and is arranged on the central side of the optical axis300. The second movable frame17is held in the center of the movement direction by attracting the second yoke30through the first magnet22.

The effectiveness of this structure has the same advantages as the first embodiment.

Third Embodiment

In this embodiment, unlike the second embodiment, multiple first magnets22are arranged in the circumferential direction of the first through groove161. The first movable frame16is provided with an accommodating groove164on the light receiving side along the optical axis300. The extending direction of the inner wall near the first magnet22of the accommodating groove164forms a preset angle with the direction of the optical axis300. A side of the accommodating groove164away from the first magnet22is provided with a magnetic adsorbing portion165, which includes magnetic material.

A protrusion block175extending along the optical axis300towards the first movable frame16is arranged on a position on the second movable frame17opposite to the accommodating groove164.

An end of each respective second ball19close to the first movable frame16extends into the accommodating groove164and is in a rolling connection to the first movable frame16, and an end of each respective second ball19close to the second movable frame17is in a rolling connection to the protrusion block175.

The second coil31and the second yoke30are both arranged on the second movable frame17, and the second coil31is arranged between the first magnet22and the second yoke30.

The first magnetic attracts the magnetic adsorbing portion165on the first movable frame16, and presses each respective second ball19onto the inclined plane of the accommodating groove164of the first movable frame16in a direction orthogonal to the optical axis300, so that the first magnet22attracts the second yoke30to press the second movable frame17towards the optical axis300, thereby keeping the second movable frame17in the center along the movement direction.

The effectiveness of this structure has the same advantages as the first embodiment.

The camera device100of the above embodiments is an autofocus lens structure. In some embodiments, as shown inFIG.20, the above camera device100may also be applied to a periscope lens structure400. The periscope lens structure400further includes a first prism401arranged on an object side of the lens unit12and/or a second prism402arranged on an image side of the lens unit12. The first prism401and the second prism402are configured to change the direction of the optical path. By setting the first prism401and/or the second prism402configured to change the direction of the optical path, it is beneficial to reduce the volume of the camera device100, thereby achieving miniaturization and portability of the camera device100.

As shown inFIG.21andFIG.22, the above camera device100may also be applied to a zoom lens structure500. The lens unit12includes at least two lenses spaced along the optical axis300. The zoom lens structure500can change a distance between two lenses along the optical axis300. Specifically, the lens unit12including multiple lenses can perform telescopic motion. By setting the zoom lens structure500, it is not only beneficial to improve the shooting effect of the camera device100, but also to enhance the user experience.

Based on the above embodiment and referring toFIG.23, a portable electronic device200is further provided according to the present application, such as a smart phone or a tablet device, which includes the above camera device100.

The above embodiments based on the schematic diagram provide a detailed explanation of the structure, features, and effects of the present application. The above are only preferred embodiments of the present application, but the scope of embodiment is not limited by the accompanying drawings. Any changes made according to the concept of the present application, or equivalent embodiments modified to equivalent changes, that do not exceed the spirit covered by the instructions and illustrations, shall fall within the scope of protection of the present application.