A camera device and a portable electronic device

Abstract

The application discloses a camera device and a portable electronic device, the camera device comprises a shell with a receiving cavity, an optical imaging part placed in the receiving cavity and an anti-shake mechanism, the optical imaging part comprises a lens with an optical axis and a driving mechanism for driving the lens to move, the anti-shake mechanism comprises a first movable part, a first fixed part, a first coil, a first magnet, a filter and a photosensitive sensor, the driving mechanism comprises a second magnet for driving the lens to move, the first magnet, the first coil and the second magnet are sequentially and spacedly arranged along the direction of the optical axis, and the first coil is simultaneously subjected to the action of the first magnet and the second magnet to drive the first movable part to move. Compared with the prior art, the first coil can simultaneously utilize the magnetic flux of the first magnet and the second magnet, so that the first movable part fixed with the first coil can be subjected to greater driving force, and the efficiency of shake correction of the camera device is improved.

Description

[0001] This application claims priority to Japanese Patent Application No. 2022-060631, filed March 31, 2022, in the Japan Patent Office, the entire contents of which are incorporated herein by reference. TECHNICAL FIELD

[0002] The present application relates to the technical field of camera devices, and in particular to a camera device and a portable electronic device. BACKGROUND

[0003] With the rapid development of shooting technology, camera devices containing lenses are widely used in many various portable electronic devices, such as portable phones, tablet computers, etc.

[0004] The camera device applied to the general portable electronic device generally includes a driving mechanism for adjusting the focus in the optical axis direction and a hand-shake correction mechanism for moving in the plane orthogonal to the optical axis direction.

[0005] The functions of driving are formed by a coil and a magnet, and the coil is fixed to the outer periphery of the lens carrier. When current is applied to the coil, the coil moves the lens carrier to move along the optical axis direction of the lens by the action of electromagnetic force, thereby enabling focusing.

[0006] In addition, when the user holds the electronic device with his hand to take a picture, for the shaking of the camera device caused by hand-shake, the shaking can be corrected by driving in the direction perpendicular to the optical axis.

[0007] However, as a small device mounted on, for example, a portable electronic device, the hand-shake correction mechanism in the optical system of medium telephoto or the like with a long optical axis full length has a problem that it is difficult to realize low height and miniaturization in an integrated mechanism due to the length of the driving amount and the weight of the lens.

[0008] In addition, since the driving mechanism for adjusting the focus driven in the optical axis direction and the hand-shake correction mechanism driven in the plane orthogonal to the optical axis are integrated, mechanisms for suppressing the inherent vibration of each, a centering adjustment mechanism of the lens, etc. are also required, and therefore there is a tendency that the assembly requires effort and the design difficulty is also increased. SUMMARY

[0009] The object of the present application is to provide a camera device and a portable electronic device to solve the technical problems in the prior art, which can simplify components and reduce the occupied space.

[0010] The present application provides a camera device, comprising a housing having a receiving cavity, an optical imaging part placed in the receiving cavity, and an anti-shake mechanism, the optical imaging part comprising a lens having an optical axis and a driving mechanism for driving the lens to move, wherein:

[0011] The anti-shake mechanism comprises a first movable part, a first fixed part, a first coil, a first magnet, a filter and a photosensitive sensor, the first movable part is supported on the first fixed part through rolling of balls, the first coil, the filter and the photosensitive sensor are fixedly connected to the first movable part, the first magnet is fixedly connected to the first fixed part, and the first magnet is oppositely and spacedly arranged with the first coil;

[0012] The driving mechanism comprises a second magnet for driving the lens to move;

[0013] The first magnet, the first coil and the second magnet are sequentially and spacedly arranged along the optical axis direction, and the first coil is simultaneously acted on by the first magnet and the second magnet to drive the first movable part to move.

[0014] The camera as described above, preferably, the first magnet and the second magnet are each provided with a plurality of groups, the plurality of groups of the first magnet and the plurality of groups of the second magnet are correspondingly arranged around the optical axis, each group of the first magnet is arranged as two separate parts along a direction perpendicular to the optical axis, the two separate parts of the first magnet have opposite magnetization directions along the optical axis, each group of the second magnet is magnetized along a direction perpendicular to the optical axis, and each group of the second magnet and each group of the corresponding first magnet have opposite magnetic pole distribution directions on a side of the second magnet.

[0015] The camera as described above, preferably, the first movable part can move in a first direction and a second direction perpendicular to the optical axis direction and can rotate in a plane defined by the first direction and the second direction; the first direction is perpendicular to the second direction, the anti-shake mechanism has a first axis parallel to the first direction and a second axis parallel to the second direction, the optical axis passes through an intersection of the first axis and the second axis, the first coil is provided with a plurality of groups, the plurality of groups of the first coil are arranged around the optical axis, the plurality of groups of the first coil are rotationally symmetrically distributed about the intersection and are non-axially symmetrically distributed about the first axis and the second axis.

[0016] The camera as described above, preferably, the optical imaging part is an automatic focusing lens structure, the driving mechanism further comprises a second movable part, a second fixed part, an elastic support part and a second coil, the lens and the second coil are fixedly connected to the second movable part, the second magnet is fixed to the second fixed part, the second magnet is oppositely and spacedly arranged with the second coil, and the two ends of the elastic support part are respectively connected with the second movable part and the second fixed part to suspend the second movable part in the accommodating cavity.

[0017] The camera as claimed in any one of the preceding claims, wherein preferably, the optical imaging unit and the anti-shake structure are detachably abutted along the optical axis direction.

[0018] The camera as claimed in any one of the preceding claims, wherein preferably, the optical imaging unit is a periscopic lens structure or a zoom lens structure.

[0019] The camera as claimed in any one of the preceding claims, wherein preferably, the first movable unit is convex on the backlight side thereof along the optical axis direction, and a first protrusion is arranged on an end surface of the first protrusion away from the first movable unit, and a first groove is arranged on the end surface of the first protrusion away from the first movable unit.

[0020] The first fixed unit is concave on the light-receiving side thereof along the optical axis direction, and a second groove is arranged on the first fixed unit.

[0021] The photosensitive sensor is fixed on the first protrusion, one end of the photosensitive sensor extends into the first groove, and the other end of the photosensitive sensor extends into the second groove.

[0022] The first movable unit is penetrated by a stepped groove on the light-receiving side thereof along the optical axis direction, the stepped groove corresponds to the first groove and penetrates to be in communication with the first groove, the filter is fixed in the stepped groove, and the filter is arranged in opposite relation to the photosensitive sensor along the optical axis direction.

[0023] The camera as claimed in any one of the preceding claims, wherein preferably, the first movable unit is concave on the backlight side thereof along the optical axis direction, and a third groove is arranged in the first movable unit, and a magnetic yoke is fixed in the third groove, and the magnetic yoke corresponds to the first magnet in one-to-one correspondence.

[0024] The camera as claimed in any one of the preceding claims, wherein preferably, the first movable unit is convex on the backlight side thereof along the optical axis direction, and a second protrusion is arranged on the first movable unit, and a fourth groove is arranged on an end surface of the second protrusion away from the first movable unit, and a first plate body is arranged in the fourth groove.

[0025] The first fixed unit is concave on the light-receiving side thereof along the optical axis direction, and a fifth groove is arranged in the first fixed unit, and the fifth groove corresponds to the fourth groove in one-to-one correspondence, and a second plate body is arranged in the fifth groove.

[0026] The ball is arranged between the first plate body and the second plate body, one end of the ball close to the first movable unit extends into the fourth groove and is in rolling connection with the first plate body, and the other end of the ball close to the first fixed unit extends into the fifth groove and is in rolling connection with the second plate body, so that the first movable unit can reciprocate in a plane orthogonal to the optical axis direction.

[0027] The application further provides a portable electronic device comprising the camera device.

[0028] Compared with the prior art, the first magnet, the first coil and the second magnet are sequentially and spacedly arranged along the optical axis direction, and the first coil is arranged between the first magnet and the second magnet, so that the first coil can simultaneously use the magnetic flux of the first magnet and the second magnet, and the first movable part with the first coil can be driven by a greater driving force, thereby improving the efficiency of the shake correction of the camera device. BRIEF DESCRIPTION OF DRAWINGS

[0029] Figure 1 is a perspective view of the overall structure of the camera device of the embodiment provided by the application;

[0030] Figure 2 is a perspective exploded view of the overall structure of the camera device of the embodiment provided by the application;

[0031] Figure 3 is a side view of the overall structure of the camera device of the embodiment provided by the application;

[0032] Figure 4 is a top view of the overall structure of the camera device of the embodiment provided by the application;

[0033] Figure 5 is an A-A sectional view of Figure 4 ;

[0034] Figure 6 is a perspective view of the first movable part of the camera device of the embodiment provided by the application;

[0035] Figure 7 is a rear view of the first movable part of the camera device of the embodiment provided by the application;

[0036] Figure 8 is a B-B sectional view of Figure 7 ;

[0037] Figure 9 is a perspective view of the overall structure of the camera device in a hidden part shell state of the embodiment provided by the application;

[0038] Figure 10 is a perspective view of the positional relationship of the first magnet and the second magnet of the camera device of the embodiment provided by the application;

[0039] Figure 11 is a top view of the positional relationship of the first coil of the camera device of the embodiment provided by the application;

[0040] Figure 12 is a structural schematic view of the periscopic lens structure of the embodiment provided by the application;

[0041] Figure 13 is a structural schematic diagram of a zoom lens structure of an embodiment provided by the present application;

[0042] Figure 14 is a schematic diagram of lens retraction of a zoom lens structure of an embodiment provided by the present application;

[0043] Figure 15 is a perspective view of a portable electronic device of an embodiment provided by the present application.

[0044] BRIEF DESCRIPTION OF DRAWINGS

[0045] 10 - image pickup device;

[0046] 20 - portable electronic device;

[0047] 100 - housing, 100a - accommodation cavity, 101 - top wall, 102 - bottom wall, 103 - peripheral wall, 104 - through hole;

[0048] 200 - lens;

[0049] 300 - anti-shake mechanism, 301 - first movable part, 3011 - first protrusion, 3012 - first groove, 3013 - stepped groove, 3014 - third groove, 3015 - second protrusion, 3016 - fourth groove, 3017 - third protrusion, 302 - first fixed part, 3021 - second groove, 3022 - fifth groove, 303 - optical filter, 304 - photosensitive sensor, 305 - magnetic yoke, 306 - first coil, 307 - first magnet, 308 - first flexible conductive substrate, 309 - heat conduction member, 310 - first position detection element, 311 - first shock-absorbing buffer, 312 - first plate body, 313 - second plate body, 314 - ball, 315 - first shaft, 316 - second shaft;

[0050] 400 - driving mechanism, 401 - second movable part, 402 - second fixed part, 403 - second coil, 404 - second magnet, 405 - elastic support part, 4051 - upper leaf spring, 4052 - lower leaf spring, 406 - second position detection element, 407 - second flexible conductive substrate, 408 - second shock-absorbing buffer;

[0051] 500 - optical axis;

[0052] 600 - periscopic lens structure, 601 - first prism, 602 - second prism;

[0053] 700 - zoom lens structure;

[0054] D1 - first direction;

[0055] D2 - second direction. DETAILED DESCRIPTION

[0056] The embodiments described below are exemplary only, and are not to be construed as limiting the present application.

[0057] As Figures 1 to 11 shown, the embodiments of the present application provide a camera 10, comprising a housing 100 having a receiving cavity 100a, an optical imaging unit disposed in the receiving cavity 100a, and an anti-shake mechanism 300, the optical imaging unit comprising a lens 200 having an optical axis 500 and a driving mechanism 400 driving the lens 200 to move, the optical imaging unit and the anti-shake mechanism 300 being disposed in sequence along the direction of the optical axis 500, the lens 200 being located on the light receiving side of the direction of the optical axis 500, wherein:

[0058] The housing 100 comprises a top wall 101, a bottom wall 102, and a peripheral wall 103, the peripheral wall 103 connecting the top wall 101 and the bottom wall 102, the receiving cavity 100a being enclosed by the top wall 101, the bottom wall 102, and the peripheral wall 103, and a through hole 104 being formed in the top wall 101 and communicating with the receiving cavity 100a, so that at least part of the lens 200 protrudes out.

[0059] The anti-shake mechanism 300 comprises a first movable part 301, a first fixed part 302, a first coil 306, a first magnet 307, a filter 303, and a photosensitive sensor 304, the first fixed part 302 being fixed in the receiving cavity 100a, the first movable part 301 being movably disposed in the receiving cavity 100a, the first movable part 301 being supported on the first fixed part 302 by rolling balls 314, the first movable part 301 being movable in a plane orthogonal to the direction of the optical axis 500, the first magnet 307 being fixed on the first fixed part 302, and the first coil 306, the filter 303, and the photosensitive sensor 304 being fixedly connected to the first movable part.

[0060] The filter 303 is closer to the light receiving side of the direction of the optical axis 500 than the photosensitive sensor 304. In some embodiments, the filter 303 is an infrared cut filter 303, which generally protects the photosensitive sensor 304 and blocks harmful wavelengths, filters out unnecessary light, and only needs to pass visible light.

[0061] The signal lines, power lines, etc. of the first coil 306, the filter 303, and the photosensitive sensor 304 can be configured to the outside of the anti-shake mechanism 300 through the first flexible conductive substrate 308, so as not to hinder the movement of the anti-shake mechanism 300. Preferably, a space for free movement is provided in the receiving cavity 100a, so that at least the bending surface of the first flexible conductive substrate 308 does not hinder the movement when moving in the plane.

[0062] The anti-shake mechanism 300 corrects the shake by moving the filter 303 and the photosensitive sensor 304 in the plane perpendicular to the optical axis 500 by using the first movable part 301, and the first coil 306, the filter 303 and the photosensitive sensor 304 are fixedly connected to the first movable part 301, so that the height, the size of the camera 10 are reduced, the components are simplified, the occupied space is reduced, and the quality of the photographed image is improved. The working principle of the anti-shake mechanism 300 is that when the first coil 306 is powered, the Lorentz force is generated in the first coil 306 through the interaction between the magnetic field of the first magnet 307 and the current flowing in the first coil 306. The direction of the Lorentz force is perpendicular to the direction of the magnetic field of the first magnet 307 and the direction of the current flowing in the first coil 306. Since the first magnet 307 is fixed, the reaction force acts on the first coil 306. The reaction force becomes the driving force of the first movable part 301, and the first movable part 301 with the first coil 306 moves in the plane perpendicular to the direction of the optical axis 500, so that the correction anti-shake is performed.

[0063] The driving mechanism 400 includes the second magnet 404 for driving the lens 200 to move.

[0064] Further, referring to Figure 5 As shown in the figure, the first magnet 307, the first coil 306 and the second magnet 404 are sequentially and spaced apart along the optical axis direction, the first magnet 307, the first coil 306 and the second magnet 404 are sequentially and spaced apart along the direction of the optical axis 500, and the first coil 306 is simultaneously subjected to the action of the first magnet 307 and the second magnet 404 to drive the first movable part 301 to move.

[0065] By sequentially and spaced apart the first magnet 307, the first coil 306 and the second magnet 404 along the optical axis direction, and the first coil 306 is arranged between the first magnet 307 and the second magnet 404, so that the first coil 306 can simultaneously use the magnetic flux of the first magnet 307 and the second magnet 404, so that the first movable part 301 with the first coil 307 can be subjected to greater driving force, and the efficiency of the shake correction of the camera is improved.

[0066] Further, the first magnet 307 and the second magnet 404 are each provided with a plurality of groups, and the plurality of groups of the first magnet 307 and the plurality of groups of the second magnet 404 are correspondingly arranged around the optical axis 500, each group of the first magnet 307 is arranged as two separate parts along the direction perpendicular to the optical axis 500, and the two first magnets 307 arranged separately have opposite magnetizing directions along the optical axis 500, each group of the second magnet 404 is magnetized along the direction perpendicular to the optical axis 500, and each group of the second magnet 404 has opposite pole distribution directions on the side opposite to the corresponding first magnet 307.

[0067] In some embodiments, referring to Figure 10 As shown, the first magnet 307 has two layers in the direction of the optical axis, the polarities of the two layers of the first magnet 307 are opposite, the S pole of the layer closer to the second magnet 404 is closer to the lens 200 than the N pole, and the S pole of the second magnet 404 is farther away from the lens 200 than the N pole.

[0068] Further, referring to Figure 11 As shown, the first movable part 301 can move in the first direction D1 and the second direction D2 orthogonal to the direction of the optical axis 500 and can rotate in the plane defined by the first direction D1 and the second direction D2; the first direction D1 is perpendicular to the second direction D2, the anti-shake mechanism 300 has a first axis 315 parallel to the first direction D1 and a second axis 316 parallel to the second direction D2, the optical axis 500 passes through the intersection of the first axis 315 and the second axis 316, the first coil 306 is provided in multiple groups, the multiple groups of the first coil 306 are arranged around the optical axis, the multiple groups of the first coil 306 are rotationally symmetrically distributed about the intersection and are non-axially symmetrically distributed about the first axis 315 and the second axis 316, the first coil 306 can change the direction of the current to change the rotation direction of the first movable part 301, so that the first movable part 301 can rotate clockwise and counterclockwise in the plane orthogonal to the optical axis 500.

[0069] Further, referring to Figures 6 to 8 As shown, in some embodiments, the main body of the first movable part 301 is a plate structure, the main body of the first movable part 301 is convexly provided with a first protrusion 3011 on the back light side in the direction of the optical axis 500, the first protrusion 3011 is preferably located in the middle of the first movable part 301, the photosensitive sensor 304 is fixed on the first protrusion 3011 and can move synchronously with the first movable part 301, the end face of the first protrusion 3011 away from the first movable part 301 is concavely provided with a first groove 3012, the first groove 3012 is used to accommodate part of the structure of the photosensitive sensor 304, one end of the photosensitive sensor 304 extends into the first groove 3012, so as to further compress the space occupied by the photosensitive sensor 304 in the direction of the optical axis 500, and at the same time, the photosensitive sensor 304 can be protected, the shape and size of the first groove 3012 can be determined according to the shape and size of the photosensitive sensor 304, which is not limited here.

[0070] The light-receiving side of the first fixed part 302 in the direction of the optical axis 500 is recessed with a second groove 3021, the second groove 3021 corresponding to the first groove 3012, the second groove 3021 being used to accommodate a partial structure of the photosensitive sensor 304, one end of the photosensitive sensor 304 extending into the second groove 3021, so as to further compress the space occupied by the photosensitive sensor 304 in the direction of the optical axis 500, and at the same time, to play a protective role for the photosensitive sensor 304. The shape and size of the second groove 3021 can be determined according to the shape and size of the photosensitive sensor 304, and are not limited here. It can be known by those skilled in the art that the inner diameter of the second groove 3021 is greater than the size of the structure of the photosensitive sensor 304 extending into the second groove 3021, so that the lateral movement of the photosensitive sensor 304 in the second groove 3021 is not hindered, and the movement of the photosensitive sensor 304 by the inner wall of the second groove 3021 is avoided.

[0071] By accommodating the photosensitive sensor 304 in the first groove 3012 and the second groove 3021, the projection of the photosensitive sensor 304 in the direction of the optical axis 500 overlaps the first movable part 301 and the first fixed part 302, and the thicknesses of the first movable part 301, the first fixed part 302 and the photosensitive sensor 304 are overlapped, thereby reducing the space occupied by the photosensitive sensor 304, which is conducive to the miniaturization of the camera 10, and at the same time, can efficiently achieve the effects of reducing the components, improving the perpendicularity of the photosensitive sensor 304 to the optical axis 500, reducing the harmful inclination of the photosensitive sensor 304 to the optical axis 500, further reducing the installation deviation of the plane of the photosensitive sensor 304, improving the rigidity of the whole photosensitive sensor 304, and protecting against drop impact.

[0072] Further, with reference to Figures 6 to 8As shown, the light-receiving side of the first movable part 301 in the direction of the optical axis 500 is penetrated by a stepped groove 3013, which is provided at a position corresponding to the first protrusion 3011 and which is in communication with the first groove 3012. The filter 303 is fixed in the stepped groove 3013. The filter 303 and the photosensitive sensor 304 are arranged opposite each other in the direction of the optical axis 500. The filter 303 is closer to the light-receiving side in the direction of the optical axis 500. The projection of the filter 303 in the direction of the optical axis 500 overlaps the first movable part 301. The thickness of the first movable part 301 and the filter 303 is overlapped, thereby reducing the space occupied by the filter 303, which is conducive to the miniaturization of the camera 10. At the same time, the filter 303 can efficiently have the effects of reducing the components, improving the perpendicularity of the filter 303 with respect to the optical axis 500, reducing the harmful inclination of the filter 303 with respect to the optical axis 500, further reducing the mounting deviation of the plane of the filter 303, improving the rigidity of the entire filter 303, and protecting against drop impact.

[0073] Further, referring to Figure 5 As shown, the first movable part 301 is arranged on the light-receiving side of the first fixed part 302 in the direction of the optical axis 500. The first coil 306 is fixed to the side of the first movable part 301 facing the first fixed part 302. The first coil 306 is arranged around the photosensitive sensor 304. The first magnet 307 is fixed to the side of the first fixed part 302 facing the first movable part 301. The first magnet 307 corresponds to the first coil 306. In some embodiments, the first magnet 307 and the first coil 306 are each provided in multiple numbers. The multiple first magnets 307 and the multiple first coils 306 correspond to each other. Preferably, the first coil 306 is provided in four numbers. The four first coils 306 are arranged at equal intervals around the photosensitive sensor 304. Those skilled in the art can know that the number and distribution of the first coil 306 can be determined according to actual conditions, which are not limited herein.

[0074] Further, referring to Figure 5 and Figure 7 As shown, the first movable part 301 is recessed on the back side in the direction of the optical axis 500 to form a third groove 3014. The third groove 3014 is fixed with a magnetic yoke 305. The magnetic yoke 305 corresponds to the first magnet 307. The magnetic yoke 305 is arranged in the third groove 3014, so that the surface of the magnetic yoke 305 is lower than the surface of the first movable part 301, which is also conducive to the miniaturization of the camera 10.

[0075] The magnetic yoke 305 is installed on the first movable part 301 and is formed in a structure that is pulled towards the center of the first magnet 307, has a magnetic spring effect that always pulls the anti-shake mechanism 300 towards the center of the optical axis 500 through the magnetic yoke 305 and the first magnet 307, interacts with the first magnet 307, has an effect of efficiently eliminating looseness, can reduce the inclination of the first movable part 301 relative to the optical axis 500, and plays a role of motion reset and compression of the ball 314.

[0076] Further, referring to Figures 5 to 8 As shown in the figure, the first movable part 301 protrudes a second protrusion 3015 on the backlight side in the direction of the optical axis 500, the end face of the second protrusion 3015 away from the first movable part 301 is recessed with a fourth groove 3016, the first plate body 312 is arranged in the fourth groove 3016, and the first plate body 312 is fixed to the bottom surface of the fourth groove 3016.

[0077] The first fixed part 302 is recessed with a fifth groove 3022 on the light receiving side in the direction of the optical axis 500, the fifth groove 3022 corresponds to the fourth groove 3016 one by one, the second plate body 313 is arranged in the fifth groove 3022, and the second plate body 313 is fixed to the bottom surface of the fifth groove 3022.

[0078] The ball 314 is arranged between the first plate body 312 and the second plate body 313, the first plate body 312, the second plate body 313 and the ball 314 are all arranged in multiple, the multiple first plate bodies 312, the multiple second plate bodies 313 and the multiple balls 314 correspond one by one, thereby providing balanced support force, avoiding the inclination of the first movable part 301 during movement, the end of the ball 314 close to the first movable part 301 extends into the fourth groove 3016 and is in rolling connection with the first plate body 312, and the end of the ball 314 close to the first fixed part 302 extends into the fifth groove 3022 and is in rolling connection with the second plate body 313, so that the first movable part 301 can move back and forth in a plane perpendicular to the direction of the optical axis 500.

[0079] By accommodating the ball 314 into the fourth groove 3016 and the fifth groove 3022, the movement of the ball 314 can be limited, the movement amplitude of the first movable part 301 is avoided to be too large, at the same time, the projection of the ball 314 in the direction of the optical axis 500 exists a coincidence area between the first movable part 301 and the first fixed part 302, the thicknesses of the first movable part 301, the first fixed part 302 and the ball 314 are coincided, thereby reducing the space occupied by the ball 314, which is beneficial to the miniaturization of the camera device 10 and improving the protection effect against drop impact.

[0080] Further, referring to Figure 5As shown, the first movable part 301 is provided with a third protrusion 3017 on the light receiving side in the direction of the optical axis 500, and the first shockproof buffer 311 is covered on the third protrusion 3017. In some embodiments, the third protrusion 3017 is provided with a plurality of third protrusions 3017 which are annularly and spacedly arranged on the first movable part 301 to improve the balanced dispersion buffer and support effect. Those skilled in the art can know that the number and distribution of the third protrusions 3017 can be determined according to the actual situation, which is not limited here. The first shockproof buffer 311 is preferably a shock-absorbing gel, which can have more accurate anti-shake function by producing a shock-absorbing effect against the sudden energized control pulsation action of the anti-shake mechanism 300.

[0081] Further, the optical imaging part and the anti-shake structure 300 are separable in the direction of the optical axis 500, and the movement driven by the driving mechanism 400 of the optical imaging part and the movement guided by the anti-shake structure 300 do not interfere with each other. Therefore, the anti-shake structure 300 provided by the present application can be freely combined with various optical imaging parts of different structures and different driving modes.

[0082] In some embodiments, referring to Figure 1 As shown, the first flexible conductive substrate 308 is provided with a first position detection element 310 which can detect the magnetic flux of the first magnet 307. Preferably, the first position detection element 310 is provided with at least two first position detection elements 310, which can correctly detect the position of the first movable part 301 and control the anti-shake by detecting the magnetic flux of the first magnet 307.

[0083] According to the technical solutions of the above embodiments, the purpose of realizing a more efficient anti-shake mechanism 300 in a miniaturized portable electronic device can be achieved, and the quality of the photographed image is improved.

[0084] Referring to Figure 1 , Figure 5 and Figure 9 As shown, the optical imaging part is an automatic focusing lens structure, and the driving mechanism 400 includes a second movable part 401, a second fixed part 402, an elastic support part 405 and a second coil 403. The second movable part 401 can reciprocate in the direction of the optical axis 500, and the lens 200 and the second coil 403 are connected with the second movable part 401.

[0085] The middle part of the second movable part 401 is penetrated by a cylindrical through slot, the lens 200 is fixed on the inner circumferential surface of the through slot by bonding, screwing or other connecting methods, the second coil 403 is a hollow coil energized during focusing, viewed along the optical axis 500 direction, the second coil 403 is a polygonal structure, for example, a quadrilateral structure, the second coil 403 is sleeved on the outer wall surface of the second movable part 401, and viewed along the optical axis 500 direction, the second fixed part 402 is a square frame structure, the second movable part 401 extends into the frame of the second fixed part 402, the second magnet 404 is arranged on the inner wall surface of the second fixed part 402, and the second magnet 404 is arranged around the second coil 403.

[0086] The two ends of the elastic support part 405 are connected with the second movable part 401 and the second fixed part 402 respectively, so as to suspend the second movable part 401 in the accommodation cavity 100a, and by the respective elasticity, the lens 200 can be kept in the suspended state without electromagnetic force.

[0087] In some embodiments, the elastic support part 405 includes an upper leaf spring 4051 and a lower leaf spring 4052, the upper leaf spring 4051 is located on the side of the second movable part 401 close to the light receiving side in the direction of the optical axis 500, the two ends of the upper leaf spring 4051 are connected with the upper end surfaces of the second movable part 401 and the second fixed part 402 respectively, a plurality of positioning protrusions are arranged on the upper end surfaces of the second movable part 401 and the second fixed part 402, and a plurality of positioning through slots matched with the positioning protrusions are arranged on the upper leaf spring 4051. Similarly, the lower leaf spring 4052 is located on the side of the second movable part 401 away from the light receiving side in the direction of the optical axis 500, the lower leaf spring 4052 is arranged opposite to the upper leaf spring 4051, the two ends of the lower leaf spring 4052 are connected with the lower end surfaces of the second movable part 401 and the second fixed part 402 respectively, a plurality of positioning protrusions are arranged on the lower end surfaces of the second movable part 401 and the second fixed part 402, and a plurality of positioning through slots matched with the positioning protrusions are arranged on the lower leaf spring 4052.

[0088] The working principle of the above-mentioned driving mechanism 400 is as follows: the second coil 403 is energized, and the Lorentz force is generated in the second coil 403 through the interaction between the magnetic field of the second magnet 404 and the current flowing in the second coil 403. The direction of the Lorentz force is orthogonal to the direction of the magnetic field of the second magnet 404 and the direction of the current flowing in the second coil 403. Since the second magnet 404 is fixed, the reaction force acts on the second coil 403. The reaction force becomes the driving force of the second movable part 401, and the second movable part 401 with the second coil 403 moves in the direction of the optical axis 500, so as to perform focusing.

[0089] Further, with reference to Figure 1 and Figure 5As shown, the second flexible conductive substrate 407 is further arranged in the driving mechanism 400, and the second position detection element 406 capable of detecting the magnetic flux of the second magnet 404 is arranged in the second flexible conductive substrate 407. By detecting the magnetic flux of the second magnet 404, the lens 200 can be correctly detected and controlled. The signal line and power line of the second coil 403 and the second position detection element 406 can be arranged outside the driving mechanism 400 through the second flexible conductive substrate 407. Preferably, the second flexible conductive substrate 407 is integrated with the first flexible conductive substrate 308. In the case that the driving integrated circuit for control is arranged on the first flexible conductive substrate 308, the driving lens 200 can be powered, the servo control of the signal of the second position detection element 406 can be fed back, and the like.

[0090] Further, referring to Figure 1 As shown, the second movable part 401 is provided with the second shockproof buffer 408, which is preferably a shock-absorbing gel. By generating a shock-absorbing effect against the sudden power-on control pulsation action of the driving lens 200, the driving lens 200 can have more accurate driving function.

[0091] In the prior art, there is a technical problem that as the camera component assembly becomes larger, the heat generation increases, and the heat dissipation in the anti-shake mechanism 300 for the camera component assembly becomes a problem. It is possible that the motion is limited, and the element is damaged due to the heat of the camera component assembly itself. To solve the technical problem of heat dissipation of the camera component assembly, at least a part of the shell 100 is made of metal material with high thermal conductivity. The part is preferably adjacent to the photosensitive sensor 304, for example, the part is located on the bottom wall 102, or the bottom wall 102 is made of metal material. The heat conduction member 309 is arranged in the receiving cavity 100a, and the heat conduction member 309 is in contact with the photosensitive sensor 304 and the shell 100 to conduct the heat of the photosensitive sensor 304 to the shell 100.

[0092] Therefore, it is not necessary to use a new heat dissipation structure or more components such as a fan for air circulation for heat dissipation. Therefore, the embodiment has the advantages of reducing damage to the photosensitive sensor 304, good heat dissipation effect, and being beneficial to miniaturization and thinning.

[0093] In some embodiments, the heat conduction member 309 is a heat dissipation gel, which can not only efficiently transfer the heat emitted from the photosensitive sensor 304 to the shell 100, but also has a shock-absorbing effect against the sudden power-on control pulsation action of the anti-shake mechanism 300, thereby having more accurate anti-shake function. Those skilled in the art can know that the heat conduction member 309 has more embodiments, which are not listed here.

[0094] The optical imaging part of the foregoing embodiment is an automatic focusing lens structure. In some embodiments, as shown in Figure 12 The anti-shake mechanism 300 described above can also be applied to the optical imaging part of the periscopic lens structure 600, which further comprises a first prism 601 located on the object side of the lens 200 and / or a second prism 602 located on the image side of the lens 200, and the first prism 601 and the second prism 602 are used to change the direction of the light path. By arranging the first prism 601 and / or the second prism 602 that can change the light path, the volume of the camera device can be reduced, thereby facilitating the miniaturization and portability of the camera device.

[0095] As shown in Figure 13 and 14 The anti-shake mechanism 300 described above can also be applied to the optical imaging part of the zoom lens structure 700, which comprises at least two lenses arranged along the optical axis direction, and the zoom lens structure 700 can change the distance between the two lenses along the optical axis 500 direction. Specifically, the lens 200 comprising a plurality of lenses can perform telescopic movement. By arranging the zoom lens structure 700, not only the shooting effect of the camera device can be improved, but also the user experience can be improved.

[0096] Based on the foregoing embodiments, as shown in Figure 15 The present application also provides a portable electronic device 20, such as a smart phone or a tablet device, which comprises the camera device 10 described above.

[0097] The above embodiments according to the drawings illustrate the structure, features and effects of the present application. The above description is only the preferred embodiment of the present application, but the present application is not limited by the drawings. Any changes or modifications made in accordance with the concept of the present application, or equivalent embodiments with equivalent changes, shall be within the scope of the present application.

Claims

1. An image pickup device, characterized by comprising: The optical imaging device comprises a housing with a receiving cavity, an optical imaging unit arranged in the receiving cavity, and an anti-shake mechanism, wherein the optical imaging unit comprises a lens with an optical axis and a driving mechanism for driving the lens to move. The anti-shake mechanism comprises a first movable part, a first fixed part, a first coil, a first magnet, a filter, and a photosensitive sensor, the first movable part is supported on the first fixed part through rolling balls, the first coil, the filter, and the photosensitive sensor are fixedly connected to the first movable part, the first magnet is fixedly connected to the first fixed part, and the first magnet is arranged in opposite spacing with the first coil. The driving mechanism comprises a second magnet for driving the lens to move. The first magnet, the first coil, and the second magnet are sequentially and spacedly arranged along the optical axis direction, and the first coil is simultaneously acted on by the first magnet and the second magnet to drive the first movable part to move.

2. The camera of claim 1, wherein: The first magnet and the second magnet are each provided with multiple groups, multiple groups of the first magnet and multiple groups of the second magnet are correspondingly arranged around the optical axis, each group of the first magnet is arranged as two separate parts along a direction perpendicular to the optical axis, and the two separate first magnets have opposite magnetization directions along the optical axis direction, each group of the second magnet is magnetized along a direction perpendicular to the optical axis, and each group of the second magnet and each group of the corresponding first magnet have opposite magnetic pole distribution directions on a side opposite to the second magnet.

3. The camera of claim 1, wherein: The first movable part can move in translation in a first direction and a second direction orthogonal to the optical axis direction and can move in rotation in a plane defined by the first direction and the second direction, the first direction is perpendicular to the second direction, the anti-shake mechanism has a first axis parallel to the first direction and a second axis parallel to the second direction, the optical axis passes through an intersection of the first axis and the second axis, the first coil is provided with multiple groups, multiple groups of the first coil are arranged around the optical axis, multiple groups of the first coil are rotationally symmetrically distributed about the intersection and are non-axially symmetrically distributed about the first axis and the second axis.

4. The camera of claim 1, wherein: The optical imaging unit is an autofocus lens structure, and the driving mechanism further comprises a second movable part, a second fixed part, an elastic support part, and a second coil, the lens and the second coil are fixedly connected to the second movable part, the second magnet is fixed to the second fixed part, the second magnet is arranged in opposite spacing with the second coil, and two ends of the elastic support part are connected with the second movable part and the second fixed part respectively to suspend the second movable part in the receiving cavity.

5. The camera of claim 1, wherein: The optical imaging unit and the anti-shake mechanism are detachably abutted along the optical axis direction.

6. The camera of claim 1, wherein: The optical imaging unit is a periscopic lens structure or a zoom lens structure.

7. The camera device according to claim 1, wherein: a first protrusion is protruded on a backlight side of the first movable part in the optical axis direction, and a first groove is recessed on an end surface of the first protrusion away from the first movable part. The light-receiving side of the first fixed part in the optical axis direction is recessed with a second groove corresponding to the first groove; The photosensitive sensor is fixed on the first protrusion, one end of the photosensitive sensor extends into the first groove, and the other end of the photosensitive sensor extends into the second groove; The light-receiving side of the first movable part in the optical axis direction is penetrated with a stepped groove corresponding to the first groove and penetrating to communicate with the first groove, the filter is fixed in the stepped groove, and the filter and the photosensitive sensor are oppositely arranged along the optical axis direction.

8. The camera of claim 7, wherein: The back light side of the first movable part in the optical axis direction is recessed with a third groove, and a magnetic yoke is fixed in the third groove, the magnetic yoke corresponding to the first magnet one by one.

9. The camera device according to claim 1, characterized in that: The back light side of the first movable part in the optical axis direction is protruded with a second protrusion, the end face of the second protrusion away from the first movable part is recessed with a fourth groove, and a first plate body is arranged in the fourth groove; The light-receiving side of the first fixed part in the optical axis direction is recessed with a fifth groove corresponding to the fourth groove, and a second plate body is arranged in the fifth groove; The ball is arranged between the first plate body and the second plate body, one end of the ball close to the first movable part extends into the fourth groove and is rolling connected with the first plate body, and the other end of the ball close to the first fixed part extends into the fifth groove and is rolling connected with the second plate body, so that the first movable part can reciprocate in the plane orthogonal to the optical axis direction.

10. A portable electronic device, characterized by: The camera device according to any one of the preceding claims 1-9.

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