WO2022095751A1 - Module de caméra optique anti-tremblement - Google Patents

Module de caméra optique anti-tremblement Download PDF

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Publication number
WO2022095751A1
WO2022095751A1 PCT/CN2021/126324 CN2021126324W WO2022095751A1 WO 2022095751 A1 WO2022095751 A1 WO 2022095751A1 CN 2021126324 W CN2021126324 W CN 2021126324W WO 2022095751 A1 WO2022095751 A1 WO 2022095751A1
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WO
WIPO (PCT)
Prior art keywords
base
driving
camera module
lens
movable part
Prior art date
Application number
PCT/CN2021/126324
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English (en)
Chinese (zh)
Inventor
魏罕钢
卞强龙
刘佳
袁栋立
Original Assignee
宁波舜宇光电信息有限公司
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
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Publication date
Application filed by 宁波舜宇光电信息有限公司 filed Critical 宁波舜宇光电信息有限公司
Priority to CN202180069891.4A priority Critical patent/CN116349235B/zh
Publication of WO2022095751A1 publication Critical patent/WO2022095751A1/fr

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    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04N—PICTORIAL COMMUNICATION, e.g. TELEVISION
    • H04N23/00—Cameras or camera modules comprising electronic image sensors; Control thereof
    • H04N23/60—Control of cameras or camera modules
    • H04N23/68—Control of cameras or camera modules for stable pick-up of the scene, e.g. compensating for camera body vibrations
    • H04N23/682—Vibration or motion blur correction
    • H04N23/685—Vibration or motion blur correction performed by mechanical compensation
    • H04N23/687—Vibration or motion blur correction performed by mechanical compensation by shifting the lens or sensor position
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04N—PICTORIAL COMMUNICATION, e.g. TELEVISION
    • H04N23/00—Cameras or camera modules comprising electronic image sensors; Control thereof
    • H04N23/50—Constructional details
    • H04N23/55—Optical parts specially adapted for electronic image sensors; Mounting thereof
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04N—PICTORIAL COMMUNICATION, e.g. TELEVISION
    • H04N23/00—Cameras or camera modules comprising electronic image sensors; Control thereof
    • H04N23/60—Control of cameras or camera modules
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04N—PICTORIAL COMMUNICATION, e.g. TELEVISION
    • H04N23/00—Cameras or camera modules comprising electronic image sensors; Control thereof
    • H04N23/60—Control of cameras or camera modules
    • H04N23/68—Control of cameras or camera modules for stable pick-up of the scene, e.g. compensating for camera body vibrations
    • H04N23/681—Motion detection
    • H04N23/6812—Motion detection based on additional sensors, e.g. acceleration sensors

Definitions

  • the present invention relates to the technical field of camera equipment, and in particular, the present invention relates to an optical anti-shake camera module.
  • FIG. 1 shows a typical camera module with a motor in the prior art.
  • the camera module generally includes a lens 1 , a motor mechanism 2 (may be referred to as a motor for short) and a photosensitive assembly 3 .
  • the lens 1 is fixed on the motor carrier of the motor (shown in detail in FIG. 1 ), and the motor carrier is a movable part, which can usually drive the lens 1 in the direction of the optical axis under the action of the driving element of the motor. move up to achieve the focus function.
  • the motor often has a more complex structure. This is because the motor needs to drive the lens 1 to move in other degrees of freedom (eg, the direction perpendicular to the optical axis) in addition to driving the lens to move in the direction of the optical axis to compensate for the shake during shooting.
  • degrees of freedom e.g, the direction perpendicular to the optical axis
  • the shaking of the camera module includes translation in the direction perpendicular to the optical axis (translation in the x-axis, y-axis direction) and rotation (referring to the rotation in the xoy plane, and the rotation axis direction can be roughly the same as the optical axis) , and tilt jitter (referring to the rotation around the x and y axes, in the field of camera modules, tilt jitter is also called tilt jitter).
  • the gyroscope (or other position sensing element) in the module detects the shaking in a certain direction, it can issue an instruction to make the motor drive the lens to move a distance in the opposite direction, thereby compensating for the shaking of the lens.
  • the lens is only translated and/or rotated in the direction perpendicular to the optical axis to compensate for the shake of the camera module. This is because if the lens is rotated around the x and y axes, that is, if the tilt adjustment of the lens is used to achieve The anti-shake effect may reduce the image quality of the module, and even cause image blur, making it difficult to meet the basic image quality requirements.
  • the purpose of the present invention is to overcome the deficiencies of the prior art and provide a solution that can improve the anti-shake stroke and anti-shake response speed of the camera module.
  • an optical anti-shake camera module which includes: a lens; a photosensitive component, which has a photosensitive chip; and a first driving part, which is suitable for installing the lens and driving the lens in translate in the x-axis and y-axis directions; and a second driving part, which is adapted to drive the photosensitive chip to translate in the x-axis and y-axis directions, the second driving part includes a second base part and a second movable part,
  • the second base part includes a base and a cover, at least a part of the base is located below the photosensitive assembly, the bottom of the cover is connected to the base, and the top of the cover is connected to the first driving part;
  • the second movable part is movably connected with the second base part through balls, and the freedom of movement is limited in the xoy plane through the balls; wherein, the lens and the photosensitive chip are configured to be driven at the same time , and move in the opposite direction; the ball is located outside the
  • the second driving part is also used for driving the photosensitive chip to rotate on the xoy plane.
  • the lens movement distance b of the first drive module to drive the lens to move is determined, and the second drive module to drive the photosensitive chip to move the photosensitive chip
  • the moving distance c; wherein, the moving distance b of the lens, the moving distance c of the photosensitive chip, and the image-side focal length f of the camera module satisfy: a arctan(b/f)+arctan(c/f) .
  • the driving structure further includes a driving logic module, which is configured to keep the ratio between the moving distance b of the lens and the moving distance c of the photosensitive chip at a preset fixed ratio.
  • the driving structure further includes a driving logic module, which has an anti-shake threshold K, and the driving logic module is configured to move the lens by a distance when the tilt angle a is less than or equal to the anti-shake threshold K
  • the preset fixed ratio between the moving distance of the lens and the moving distance of the photosensitive chip is based on the weight of the lens, the driving force of the first driving part, the weight of the photosensitive chip or the photosensitive component, and the weight of the first
  • the driving forces of the two driving parts are set so that the time when the lens and the photosensitive chip move to their respective anti-shake target positions are consistent.
  • the first driving part includes a first base part and a first movable part; the top of the cover is fixed with the first base part, and the second movable part is located above the base and movably connected with the second base part, the photosensitive component is fixed on the upper surface of the second movable part; the second movable part is movably connected with the second base part through the balls, wherein the The upper surface of the second base part, the balls and the lower surface of the second movable part bear in turn in the z-axis direction, so that the second movable part moves relative to the second base part
  • the degrees of freedom are constrained within the xoy plane, where the z-axis is perpendicular to the xoy plane.
  • the balls are arranged in the four-corner area of the second driving part in a plan view.
  • the second base portion is provided with at least three grooves, and at least three balls are provided in the at least three grooves, so as to support the second movable portion on the xoy plane.
  • the second movable part includes a movable part bottom plate and a movable part side wall, and the movable part side wall is formed by extending upward from the edge region of the movable part bottom plate; the photosensitive component is placed in the in the accommodating groove formed by the bottom plate of the movable part and the side wall of the movable part; there is glue between the inner side surface of the side wall of the movable part and the outer side surface of the photosensitive component, so that the second movable part is The part is fixed with the photosensitive assembly.
  • the cover includes a side wall of the cover and a bearing platform formed by extending inward from the top of the side wall of the cover;
  • the second movable part also includes a side wall formed by extending outward from the movable part
  • the base includes a base plate and base sidewalls formed by extending upward from an edge region of the base plate, the base plate is located under the photosensitive component, and the top surface of the base sidewall has a first grooves, the balls are located in the first grooves, and the lower surface of the epitaxial structure is supported by the balls.
  • the side wall of the cover and the side wall of the base are connected to form a complete side wall of the base portion.
  • the epitaxial structure is formed by extending outward from the top of the sidewall of the movable portion.
  • the balls include a first ball and a second ball; the first ball is located in the first groove, the epitaxial structure is formed by extending outward from the middle of the side wall of the movable part, and the The upper surface of the epitaxial structure has a second groove, the second ball is located in the second groove, and the lower surface of the bearing platform is supported by the second ball.
  • the base includes a base plate
  • the driving element of the second driving part is a combination of coil magnets; wherein the magnets are arranged at the edge area of the base plate, and the coils are arranged at the edge area of the bottom plate of the movable part; or the The coil and the magnet are respectively provided on the side walls of the second movable part and the second base part.
  • the coil magnet combination includes a first coil magnet pair, a second coil magnet pair and a third coil magnet pair; wherein, the first coil magnet pair and the second coil magnet pair are used to provide the x-axis direction
  • the third pair of coil magnets is used to provide the driving force in the y-axis direction; and in a top view, the first pair of coil magnets and the second pair of coil magnets can be along the The first side and the second side of the two driving parts are arranged, the first side and the second side do not intersect, and the second coil magnet pair is arranged along the third side of the second driving part, so The third side intersects both the first side and the second side.
  • the present application can improve the anti-shake stroke of the camera module, thereby compensating for the larger shaking of the camera module.
  • the present application can improve the anti-shake response speed of the camera module.
  • the optical anti-shake camera module of the present application has the advantage of compact structure, and is especially suitable for miniaturized camera modules.
  • settings can be made according to factors such as the weight of the lens, the driving force of the first driving part, the weight of the photosensitive chip (or photosensitive component), the driving force of the second driving part, etc., so that the lens and the photosensitive chip
  • the time to move to the respective anti-shake target positions is basically the same, so as to obtain a better anti-shake effect.
  • the second driving part does not need to be provided with a light-passing hole, so that the thickness of the base part or/and the movable part of the second driving part can be reduced, thereby helping to reduce the thickness of the camera module. the height of.
  • the movable part of the second driving part and the base part are movably connected by balls, and the movement is limited on the xoy plane, and the balls are arranged on the outside of the photosensitive assembly (meaning being arranged on the photosensitive surface).
  • the outer side of the outer side of the assembly so as to avoid occupying the space in the height direction of the camera module and help to reduce the height of the camera module.
  • the movable part of the second driving part and the base of the base part are both arranged below the circuit board of the photosensitive assembly, so as to avoid the problem of picture stains caused by leakage of the glue material (referring to the problem of image blemishes caused by the image formation).
  • FIG. 1 shows a typical camera module with a motor in the prior art
  • FIG. 2 shows a schematic cross-sectional view of a camera module with an anti-shake function according to an embodiment of the present application
  • FIG. 3 shows a schematic cross-sectional view of a comparative example of a camera module with anti-shake function according to another embodiment of the present application
  • FIG. 4 shows a schematic diagram of the relationship between the moving distance of the lens and the photosensitive chip and the inclination angle of the module under four different situations in this application;
  • FIG. 5 shows a schematic cross-sectional view of a camera module in an embodiment of the present application
  • Figure 6a shows a schematic perspective view of a second driving part in an embodiment of the present application
  • Fig. 6b shows a schematic exploded perspective view of the second driving part in an embodiment of the present application
  • FIG. 7 shows a schematic cross-sectional view of a camera module according to an embodiment of the present application.
  • Fig. 8a shows the ball structure of the second driving part in a modified embodiment of the present application
  • Figure 8b shows a schematic diagram of the rotation of the movable part in the xoy plane
  • Fig. 9 shows a schematic diagram of a typical assembly manner of the second driving part in an embodiment of the present application.
  • Fig. 10 shows a schematic diagram of a disassembled state before assembly of the second driving part in another embodiment of the present application
  • FIG. 11 shows a schematic diagram of an intermediate state in the assembling process of the second driving part in another embodiment of the present application.
  • FIG. 12 shows the installation position of the driving element of the second driving part in a top view according to an embodiment of the present application
  • Fig. 13a shows a schematic cross-sectional view of a second driving part including driving elements in an embodiment of the present application
  • Fig. 13b shows a schematic cross-sectional view of a second driving part including driving elements in another embodiment of the present application
  • FIG. 14 shows a schematic diagram of an assembly method of a camera module in an embodiment of the present application
  • Fig. 15a shows the arrangement of the camera module and its connecting belt in an embodiment of the present application
  • Fig. 15b shows a schematic perspective view of the second driving part in an embodiment of the present application
  • FIG. 16 shows a schematic diagram of the connection between the photosensitive assembly and the second movable part in another embodiment of the present application
  • FIG. 17 shows a schematic cross-sectional view of a camera module according to another embodiment of the present application.
  • FIG. 18 shows a schematic cross-sectional view of a camera module according to another embodiment of the present application.
  • FIG. 2 shows a schematic cross-sectional view of a camera module with an anti-shake function according to an embodiment of the present application.
  • the camera module includes a lens 10 , a photosensitive assembly 20 , a first driving part 30 and a second driving part 40 .
  • the photosensitive component 20 includes a photosensitive chip 21 .
  • the first driving part 30 is configured to drive the lens 10 to move in the x and y directions
  • the second driving part 40 is configured to drive the photosensitive chip 21 to move in the x and y directions.
  • the x and y directions are perpendicular to each other, and both are parallel to the photosensitive surface of the photosensitive element 20 .
  • FIG. 2 also shows a three-dimensional Cartesian coordinate system constructed based on the x, y, and z directions.
  • the optical anti-shake of the camera module is realized by simultaneously driving the lens 10 and the photosensitive chip 21 to move in opposite directions by the control module.
  • the lens 1 and the photosensitive chip 21 are configured to be driven at the same time and move in opposite directions.
  • the photosensitive chip 21 when the lens 10 is driven to move in the positive direction of the x-axis, the photosensitive chip 21 is driven to move in the negative direction of the x-axis; If it is driven to move in the positive direction of the y-axis, the photosensitive chip 21 is driven to move in the negative direction of the y-axis; or the lens 10 is driven to move in the x-axis and y-axis, and the photosensitive chip 21 is driven in the x-axis and y-axis to move in the same direction as the lens. 10 moves in the opposite direction.
  • the camera module usually includes a position sensor, and the position sensor is used to detect the shaking of the camera module or the terminal device (that is, the electronic device equipped with the camera module, such as a mobile phone).
  • the position sensor sends a signal to the camera module, and drives the lens 10 and the photosensitive chip 21 to move accordingly to compensate for the jitter, so as to achieve the purpose of optical anti-shake.
  • the lens 10 and the photosensitive chip 21 are configured to move at the same time, and the lens 10 and the photosensitive chip 21 move in opposite directions, which can achieve faster response and better anti-shake effect.
  • the anti-shake angle range of the camera module is usually limited by the suspension system and the driving system, and a relatively large compensation angle range cannot be achieved.
  • the lens 10 and the photosensitive chip 21 are driven to move in opposite directions at the same time. , to achieve large-angle shake compensation.
  • this embodiment by simultaneously driving the lens 10 or the photosensitive chip 21 to move in opposite directions, compared with the solution of only driving the lens 10 to move, there is a larger relative movement stroke between the lens 10 and the photosensitive chip 21 (for For convenience of description, this relative movement stroke may be referred to as the anti-shake stroke for short), which can have a better compensation effect.
  • this embodiment also has a better compensation effect for the tilting and shaking of the camera module.
  • the moving direction of the anti-shake movement in this embodiment can be limited in the xoy plane, and it is not necessary to tilt the optical axis of the lens 10 or the photosensitive chip 21, thereby avoiding the problem of image blur caused by the anti-shake movement.
  • the photosensitive chip 21 can also be driven by the second driving part 40 to rotate in the xoy plane, so as to compensate for the shake in the rotation direction of the camera module.
  • the camera module includes a first driving part 30 , a lens 10 , a second driving part 40 and a photosensitive assembly 20 .
  • the lens 10 is mounted on the first driving part 30 .
  • the first driving part 30 can have a cylindrical first motor carrier, the first motor carrier can be used as a movable part of the first driving part, and the lens is mounted on the inner side of the first motor carrier.
  • the first driving part also has a stationary part, or a base part.
  • the base portion may be implemented as a motor housing.
  • the motor housing may include a base and a cover.
  • the base has a light hole.
  • the movable part is movably connected with the base part.
  • the driving element may be a coil magnet combination, which may be installed between the movable part and the base part.
  • it can be mounted between the first motor carrier and the motor housing.
  • the first driving part in this embodiment can directly adopt the common structure of the optical anti-shake motor in the prior art.
  • the second driving part 40 may also include a base part and a movable part.
  • the base part may include a base plate and a base part side wall, the bottom part of the base part side wall is connected with the base plate, and the top part is connected with the base part of the first driving part.
  • the base part of the first drive part 30 is sometimes referred to as the first base part
  • the base part of the second drive part 40 is called the second base part
  • the movable part of the first drive part 30 is called the first base part.
  • the first movable portion the movable portion of the second driving portion 40 is referred to as a second movable portion.
  • the second movable portion is located above the base plate of the second base portion, and is movably connected with the second base portion through a ball structure.
  • the photosensitive assembly 20 includes a circuit board 23 , a photosensitive chip 21 mounted on the surface of the circuit board, and a mirror base 22 surrounding the photosensitive chip 21 .
  • the bottom of the mirror base 22 can be mounted on the surface of the circuit board 23 .
  • the center of the lens holder 22 has a light-passing hole, and a filter 24 is installed on the lens holder 22 (the filter 24 can also be regarded as an integral part of the photosensitive assembly 20 ).
  • the bottom surface of the circuit board may be fixed (eg, bonded) to the upper surface of the second movable portion. In this way, driven by the second movable portion, the photosensitive assembly 20 can translate relative to the base portion in the x and y directions or rotate on the xoy plane.
  • the second movable part can be arranged on the back of the circuit board, the bases of the second movable part and the second base part can not be provided with light through holes, so that the same structural strength can be achieved.
  • the second movable part can be designed to be lighter and thinner, which is beneficial to the miniaturization of the camera module.
  • the following description will be given in conjunction with a comparative example.
  • FIG. 3 shows a schematic cross-sectional view of a comparative example of a camera module with an anti-shake function according to another embodiment of the present application.
  • the camera module includes a first driving part 30 , a lens 10 , a second driving part 40 and a photosensitive assembly 20 .
  • the lens 10 is mounted on the first driving part 30 .
  • the structures and assembling methods of the first driving part 30 and the lens 10 may be the same as those of the previous embodiment shown in FIG. 2 , and will not be repeated here.
  • the difference between this comparative example and the previous embodiment is that the second driving part 40 is located between the lens 10 and the photosensitive component 20 .
  • the second base portion 41 can be directly fixed on the bottom surface of the first base portion, and the second movable portion 42 is located below the second base portion 41 and is movably connected with the second base portion 41, so that the second movable portion 42 It is movable relative to the second base part 41 on the xoy plane.
  • the photosensitive element 20 is installed below the second movable portion 42 . Wherein, the top surface of the mirror base 22 of the photosensitive assembly 20 is connected and fixed with the bottom surface of the second movable portion 42 , so that the photosensitive assembly 20 can be driven by the second movable portion 42 relative to the second movable portion 42 .
  • the base portion 41 translates in the x, y direction or rotates in the xoy plane.
  • the circuit board 23 of the photosensitive component 20 may be supported on the main board 90 of the electronic device (eg, mobile phone).
  • the filter 24 can be mounted on the lens holder 22 .
  • both the second base part 41 and the second movable part 42 are located on the imaging light path, both the second base part 41 and the second movable part 42 need to be provided with a light-through hole in the center so that light can pass through .
  • the thicknesses of the second base portion 41 and the second movable portion must be increased, which may lead to an increase in the height of the camera module.
  • the base of the second base portion 41 and the second movable portion 42 are both disposed on the back of the circuit board of the photosensitive assembly 20 . Therefore, under the premise of the same structural strength, the first The thicknesses of the bases of the two base portions 41 and the second movable portion 42 can be reduced, thereby helping to reduce the height of the camera module and helping to achieve miniaturization of the camera module.
  • FIG. 16 shows a schematic diagram of the connection between the photosensitive component and the second movable part in another embodiment of the present application.
  • the second movable part 42 may include a movable part bottom plate 42a and a movable part side wall 42b, and the movable part side wall 42b is upward from the edge region of the movable part bottom plate 42a formed by extension.
  • the photosensitive assembly 20 can be placed in a receiving groove formed by the movable part bottom plate 42a and the movable part side wall 42b.
  • the glue 91 can be arranged between the inner side of the side wall 42b of the movable part and the outer side of the photosensitive component 20, that is, in this embodiment, the second movable part 42 and the photosensitive component 20 are fixed by arranging glue on the side. together.
  • FIG. 4 is a schematic diagram showing the relationship between the moving distance of the lens and the photosensitive chip and the inclination angle of the module in four different situations in the present application.
  • the position A in the figure represents the combination of the moving distance of the lens and the photosensitive chip for compensating for the shaking angle a of the camera module.
  • the moving distance of the lens in the figure is b
  • the moving distance of the photosensitive chip (hereinafter sometimes referred to as the chip)
  • the moving distance of the lens or chip can be equivalent to the angle of the image plane deviating from the optical axis during optical imaging.
  • the translation distance of the lens in the xoy plane is b
  • it causes an arithmetic relationship between the image plane offset angle ⁇ 1 and the image distance.
  • the image distance is different under different shooting distances.
  • the image distance is replaced by the image square focal length.
  • the photosensitive chip moves at a distance c on the xoy plane
  • the moving distances of the lens and the photosensitive chip may be set to be unequal, for example, the moving distance of the lens may be greater than the moving distance of the photosensitive chip, that is, b>c.
  • the second driving part can select a driver with a smaller size (eg, a mems driver, etc., and the movable stroke of such a driver is usually relatively small), so as to help the overall miniaturization of the camera module.
  • the compensation effect within the range is uniform, and it is also beneficial to reduce the design difficulty of the driving logic module of the anti-shake system of the camera module.
  • an anti-shake threshold can be set. For example, for the jitter angle a that needs to be compensated, a threshold K can be set.
  • the anti-shake angle corresponding to the maximum travel b max of the lens movement may be smaller than the maximum distance of the photosensitive chip.
  • the anti-shake system of the camera module can have a faster response speed.
  • the lens In high-end lenses, the lens often has a large number of lenses. For example, the number of lenses in the rear main camera lens of a smartphone can reach 8. In order to further improve the image quality, some lenses also use glass lenses. These all result in the lens being heavier.
  • the photosensitive chip or photosensitive assembly is relatively light in weight, and can reach a preset position with a small driving force. Therefore, in the solution of this embodiment, the advantages of the photosensitive chip or photosensitive assembly being relatively close in weight and relatively fast moving can be better utilized to effectively improve the response speed of the anti-shake system of the camera module.
  • the fixed ratio of the moving distance of the lens to the moving distance of the photosensitive chip may be based on the weight of the lens, the driving force of the first driving part, the weight of the photosensitive chip (or the photosensitive component), Factors such as the driving force of the second driving part are set, and an appropriate fixed ratio can be set, so that the time for the lens and the photosensitive chip to move to their respective anti-shake target positions is basically the same, so as to obtain a better anti-shake effect.
  • the weight of the lens and the driving force of the first driving part can basically determine the moving speed of the lens
  • the weight of the photosensitive chip (or photosensitive component) and the driving force of the second driving part can basically determine the moving speed of the photosensitive chip.
  • the moving speed of the photosensitive chip is lower than the moving speed of the photosensitive chip (for example, when the weight of the lens is large), when the fixed ratio is set, the moving distance of the photosensitive chip can occupy a larger proportion.
  • the fast feature makes the photosensitive chip move a longer distance, so that the time for the lens and the photosensitive chip to move to their respective anti-shake target positions is basically the same.
  • the first driving part may adopt a driving element with a large driving force and a suspension system with a large stroke.
  • the first driving part may be driven by an SMA (shape memory alloy) element.
  • SMA shape memory alloy
  • the SMA element can provide a larger driving force with a smaller occupied space, so the first driving part can be designed to be more compact, which is beneficial to the miniaturization of the camera module.
  • FIG. 5 shows a schematic cross-sectional view of a camera module in an embodiment of the present application.
  • the second base portion 41 of the second drive portion 40 is fixed to the first base portion of the first drive portion 30 (the first base portion may be composed of the casing 33 and the first base 34 ) together.
  • the lens 10 may be mounted on the first movable portion of the first driving portion 30 (eg, may be mounted on the first motor carrier 31 of the first movable portion).
  • the photosensitive component 20 includes a circuit board 23 , a photosensitive chip 21 , a lens holder 22 , a filter 24 and the like.
  • the photosensitive assembly 20 may be mounted on the second movable part 42 of the second driving part 40 .
  • the bottom surface of the moving part 42 can bear against the top surface of the lens holder 22 of the photosensitive assembly 20 .
  • the second base part 41 and the second movable part 42 can be elastically connected through a suspension system.
  • the suspension system allows the second movable part 42 to translate relative to the second base part 41 in the xoy plane.
  • the suspension system can be a ball system, the advantage of which is that in the z direction, the second movable part 42 and the second base part 41 are in contact with each other through balls, and the second movable part 42 only moves in the xoy plane, The movement in the optical axis direction (ie, the z-axis direction) can be blocked by the balls between the second movable part 42 and the second base part 41 , so as to avoid affecting the focus of the camera module.
  • the suspension system may include an elastic element (such as a spring) through which the fixed part and the movable part are connected, which allows the movable part to be in the xoy plane relative to the base part Translates, but prevents movement of the movable part relative to the base part outside the xoy plane.
  • an elastic element such as a spring
  • the advantage of arranging the elastic element is that the elastic element can provide an initial force between the base part and the movable part, and the initial force can control the movement of the movable part in cooperation with the driving force of the driving element. distance or maintain its position without additionally providing a driving element to provide a conjugate driving force to control the position of the movable part.
  • the movable part can move freely relative to the base part in the xoy direction without the driving force provided by the driving element, so it is often necessary to provide at least a pair of mutually opposite driving forces to control the movable part The part remains in its original position.
  • anti-shake can be achieved by driving the entire photosensitive assembly 20 to move.
  • the circuit board 23, the photosensitive chip 21, the lens holder 22, and the optical filter 24 are packaged as a whole.
  • the circuit board 23, the lens holder 22, and the optical filter 24 form a closed space.
  • the photosensitive chip 21 is accommodated in the closed space, which improves the The closedness of the photosensitive assembly 20 ensures that the imaging of the photosensitive chip 21 is not affected by dust during the production or use of the camera module.
  • the first driving part 30 is implemented to be adapted to drive the lens 10 to move in the direction of the optical axis to realize the focusing function, and also to drive the lens 10 to move in the xoy plane to achieve anti-shake function.
  • the first driving part 30 includes at least two carriers, namely a first carrier 31 and a second carrier 32 , the lens 10 is supported on the first carrier 31 , and a space between the first carrier 31 and the second carrier 32 is provided.
  • Suspension system a suspension system is provided between the second carrier 32 and the casing 33 of the first driving part 30 .
  • the suspension system between the first carrier 31 and the second carrier 32 (ie, the first suspension system) is set as a ball system
  • the suspension system between the second carrier 32 and the housing 33 ie, the second suspension system
  • the suspension system between the second carrier 32 and the housing 33 can be It is a ball structure (for example, the ball structure may include a vertical groove and a plurality of balls arranged in the vertical groove), or a suspension system based on elastic elements (such as spring sheets).
  • the bottom surface of the casing 33 can be mounted on the first base 34 , and the first base 34 and the casing 33 can jointly constitute the first base part of the first driving part 30 .
  • the second suspension system is arranged outside the first suspension system, the first suspension system allows the lens 10 and the first carrier 31 to translate in the xoy plane to realize the anti-shake function, the second suspension system allows the lens 10, the first carrier 31 to translate in the xoy plane
  • the carrier 31 and the second carrier 32 are integrally moved in the optical axis direction to realize the focusing function.
  • the second suspension system may also be arranged inside the first suspension system.
  • the second suspension system can also be arranged below the first suspension system.
  • the suspension system refers to a system in which two components are movably connected, and the relative movement degrees of freedom (ie, movement directions) of the two components are limited to a certain extent.
  • the two movably connected parts may be referred to as the base part and the movable part, respectively.
  • suspension systems are used in conjunction with drive elements such as SMA elements or coil magnet combinations.
  • a driving force is provided by the driving element, and under the action of the driving force, the movable part moves relative to the base part in the movement direction defined by the suspension system.
  • FIG. 6a shows a schematic perspective view of the second driving part in an embodiment of the present application.
  • Fig. 6b shows a schematic exploded perspective view of the second driving part in an embodiment of the present application.
  • FIG. 7 shows a schematic cross-sectional view of a camera module according to an embodiment of the present application, wherein a cross-section of the second driving part is shown.
  • the second driving part 40 includes a second base part 41 and a second movable part 42 .
  • the second base part 41 is sometimes referred to as the base part 41 for short, and the second movable part 42 is simply referred to as the movable part 42, which will not be repeated below.
  • the base portion 41 includes a base 41a and a cover 41b.
  • the base 41a can be in the shape of a flat plate, so it can also be called a bottom plate
  • the cover 41b includes a cover side wall 41b1 and a self-cover side wall A bearing platform 41b2 formed by extending the top of 41b1 inward
  • the movable part 42 is located between the bearing platform 41b2 and the base 41a
  • the four corners of the base 41a can be provided with grooves 41a1, balls placed in the groove 41a1.
  • the bottom surface of the movable portion 42 is in contact with the balls and is supported by the balls 46 , thereby forming an active connection between the base portion 41 and the movable portion 42 .
  • the support base 41b2 and the base 41a can clamp the movable portion 42, thereby limiting the movement of the movable portion 42 in the z-axis direction.
  • the movement degrees of freedom of the movable part 42 relative to the base part 41 are limited to the xoy plane.
  • the movement degrees of freedom of the movable part 42 relative to the base part 41 may include x-axis translation, y-axis translation, and z-axis translation. Rotation of the axis (i.e. rotation in the xoy plane).
  • the grooves 41a1 are provided at the corresponding positions of the balls 46.
  • the balls 46 can be placed in the grooves 41a1 during the assembly process, so as to facilitate the assembly of the second driving part 40; on the other hand, the grooves 41a1 can be The maximum moving distance of the movable part 42 relative to the base part 41 is limited, so as to avoid collision during the relative movement of the movable part 42 and the base part 41 .
  • four grooves 41a1 can be provided on the upper surface of the base 41a of the base portion 41, and there are also four balls 46, which are respectively arranged in the four corner regions of the second driving portion 40 (refer to Fig. 6b ). ).
  • the grooves and the balls may also be arranged at four sides of the second driving part.
  • the inner surface of the side wall of the base part 41 and the outer surface of the movable part 42 have a first gap 43 , and the first gap 43 is larger than
  • the maximum distance of the anti-shake movement of the movable part 42 (that is, the maximum stroke in one direction, where the one direction can be, for example, the positive x-axis direction, the negative x-axis direction, the positive direction of the y-axis, or the negative direction of the y-axis)
  • the first gap 43 Usually it can be larger than 200 ⁇ m.
  • the ball structure is used to realize the movable connection, which can reduce the movement resistance of the movable part 42, thereby reducing the driving force required to drive the movable part 42 to move, and then the movable part 42 can be designed to have a larger journey. Therefore, in some embodiments, the first gap 43 may be larger than 300 ⁇ m.
  • a second gap 44 may also be formed between the lower surface of the bearing platform 41b2 and the movable part 42 .
  • the two gaps 44 may be smaller than 10 ⁇ m to reduce friction between the movable portion 42 and the bearing platform 41b2. This reduces frictional resistance and avoids friction debris.
  • the bearing platform 41b2 can still limit the movable portion 42 in the z-axis direction, so as to prevent the movement of the movable portion 42 from deviating from the xoy plane.
  • a third gap 45 is formed between the lower surface of the movable part 42 and the upper surface of the base 41a.
  • the diameter of the ball is greater than the depth of the groove in which the ball is accommodated.
  • the third gap 45 may be smaller than 10 ⁇ m, for example.
  • the upper surface of the cover 41b ie, the upper surface of the support table 41b2
  • the top surface of the photosensitive assembly 20 mirror seat
  • Fig. 8a shows the ball structure of the second driving part in a modified embodiment of the present application.
  • the number of balls 46 between the base portion 41 and the movable portion 42 of the second driving portion 40 may be three, and the corresponding number of grooves 41a1 for accommodating the balls 46 may also be is three.
  • the number of the balls and the positions at which they are arranged are sufficient as long as the movable portion 42 can be supported on a reference plane (for example, a horizontal plane).
  • the reference plane is the xoy plane.
  • the bottom surface of the groove 41a1 is set as a plane, and the balls can move freely on the bottom surface of the groove 41a1, thereby allowing the movable part 42 to translate in the x-axis and y-axis, and also allow the movable part 42 to translate in the xoy plane.
  • rotation (as shown in Figure 8b, which shows a schematic diagram of the rotation of the movable part in the xoy plane).
  • the balls 46 are arranged below the photosensitive assembly 20 , that is, the projections of the balls 46 and the photosensitive assembly 20 on the reference plane at least partially overlap, or in other words, when viewed from a top view,
  • the balls 46 are completely located within the projection range of the photosensitive assembly 20 or at least partially within the projection range of the photosensitive assembly 20 .
  • This design can prevent the ball mechanism from occupying extra space in the radial direction of the camera module (ie, the x-axis or the y-axis direction), which helps to reduce the lateral dimension of the second driving part 40 (ie, the x-axis or the y-axis). size in the direction), which is conducive to the miniaturization of the module.
  • FIG. 9 shows a schematic diagram of a typical assembly manner of the second driving part in an embodiment of the present application.
  • the second driving part 40 can be assembled by three main components separated from each other, the three components are the base 41a, the cover 41b and the movable part 42 respectively, which can be vertically assemble in the direction.
  • the base 41a with the balls 46 can be arranged on the assembly table first, and then the movable part 42 can be placed above the base 41a to be supported by the balls 46 in the base 41a, and finally the cover can be placed 41b is moved to the top of the base 41a and the movable part 42, and then the cover 41b is moved downward so that the bottom surface of the cover side wall 41b1 is close to the top surface of the base 41a, and then the bottom surface of the cover side wall 41b1 and the base The top surface of 41a is bonded to complete the assembly of the second driving part 40 .
  • the base 41a is in the shape of a flat plate without base side walls, so it can also be called a base plate or a bottom plate.
  • the base 41a can also be composed of the base side wall and the base plate.
  • the second driving part as shown in FIG. 9 The assembly method may be the same as that shown in FIG. 9 . That is to say, three main components, which are the base, the cover and the movable part, are separated from each other first, and then the three are assembled together in the vertical direction.
  • FIG. 10 shows a schematic diagram of a disassembled state before assembly of the second driving part in another embodiment of the present application.
  • FIG. 11 shows a schematic diagram of an intermediate state in the assembling process of the second driving part in another embodiment of the present application.
  • the second driving portion 40 may be assembled by a lateral assembly method. Specifically, three main components (refer to FIG. 10 ), which are the base part main body 41 ′, the movable part 42 and the side cover 41 b ′′, which are separated from each other, can be prepared first.
  • the base part main body 41 ′ can include the base 41 a and the base
  • the cover body 41b' to which the seat 41a is attached (in some embodiments, the base 41a and the cover body 41b' may be integrally formed), the cover body 41b' is a part of the complete cover 41b, which is connected with the side cover 41b" together constitute the complete cover 41b.
  • the cover body 41b' can surround the movable part 42 (or the photosensitive component) on three sides, for example, and the other side is left for the movable part 42 (or the movable part 42 and the photosensitive component)
  • the combination body is inserted into the notch of the base body 41' from the side.
  • the side cover 41b" corresponds to the notch.
  • the side cover 41b" can be approached from the side to the base 41a, and The outer side of the base 41a and the inner side of the side cover 41b" are bonded together to form a complete second driving part 40.
  • the upper and lower end surfaces of the base part 41 are The parallelism is only determined by the manufacturing accuracy of the base part 41 itself, so this method of bonding and fixing from the side can improve the parallelism of the upper and lower end surfaces of the base part 41 and the parallelism between the upper end surface of the base part 41 and the movable part 42 .
  • FIG. 12 shows the installation position of the driving element of the second driving part in a plan view according to an embodiment of the present application.
  • Fig. 13a shows a schematic cross-sectional view of a second driving part including driving elements in an embodiment of the present application.
  • the driving element of the second driving part 40 is a combination of coil magnets.
  • the magnet 61 may be provided in the edge area of the bottom plate of the base part 41 (i.e. the base 41a), and the coil 62 may be provided in the edge area of the movable part bottom plate 42a of the movable part 42.
  • the magnet may be disposed on the bottom plate of the base portion 41 .
  • the coil 62 can be connected to the circuit board 23 of the photosensitive assembly 20 by welding through the FPC board (soft board) provided on the movable part 42 .
  • the advantage of arranging the coil 62 on the movable part 42 is that the movable part 42 and the photosensitive component 20 move synchronously during the anti-shake process. There is no relative movement, reducing the risk of electrical failure at the weld.
  • the connection method through the FPC board is not the only electrical connection method in this application.
  • the coil can also be connected to the circuit board through a contact or a contact array arranged on the upper surface of the movable part. The bottom surface realizes the electrical connection.
  • the arrangement of the driving elements shown in FIG. 13a helps to reduce the lateral dimension (ie, the dimension perpendicular to the optical axis direction) of the camera module.
  • FIG. 13b shows a schematic cross-sectional view of a second driving part including driving elements in another embodiment of the present application.
  • the coil 62 and the magnet 61 may be disposed on the side walls of the movable portion 42 and the base portion 41 .
  • This design is beneficial to reduce the thickness of the second driving portion 40, thereby reducing the height of the camera module.
  • the magnet 61 is arranged on the base 41a of the base part 41 instead of the cover 41b, and this design can leave the connection (may be adhesive) area between the base part 41 and the first driving part 30 .
  • three pairs of coil magnets are provided, respectively referred to as the first pair of coil magnets 63 and the second pair of coil magnets 64 and the third coil magnet pair 65.
  • the first pair of coil magnets 63 and the second pair of coil magnets 64 are used to drive the translation of the movable portion 42 in the x-axis direction, that is, to provide a driving force in the x-axis direction.
  • the third coil magnet pair 65 is used to drive the translation of the movable portion 42 in the y-axis direction, that is, to provide a driving force in the y-axis direction.
  • the first pair of coil magnets 63 and the second pair of coil magnets 64 may be arranged along two opposite sides of the second driving part, and the two opposite sides may be referred to as the first Side 48 and second side 49, first side 48 and second side 49 do not intersect.
  • the second coil magnet pair 64 may be arranged along the third side 47 of the second driving part, and the third side 47 intersects with both the first side 48 and the second side 49 .
  • the three coil-magnet pairs can realize both the x-axis translation and the y-axis translation, as well as the rotation on the xoy plane.
  • first coil magnet pair 63 and the second coil magnet pair 64 provide driving forces in opposite directions, a combined driving force for rotating the movable portion on the xoy plane can be generated.
  • the driving force for the rotation on the xoy plane is not unique.
  • first coil magnet pair 63 and the third coil magnet pair 65 work, it is also possible to generate a driving force that makes the movable part rotate on the xoy plane. Combined drive.
  • the positions of the first coil magnet pair and the second coil magnet pair may be staggered (that is, the arrangement positions of the first coil magnet pair and the second coil magnet pair may be asymmetrical with respect to the central axis of the second driving part), so as to The rotation of the movable part in the xoy plane (ie, the movement in the Rz direction) is realized by providing a driving force.
  • FIG. 14 shows a schematic diagram of an assembly method of a camera module in an embodiment of the present application.
  • the lens 10 is first installed on the first driving part 30, the photosensitive assembly 20 is installed on the second driving part 40, and then the relative position between the photosensitive assembly 20 and the lens 10 is adjusted through an active calibration process Then, the first driving part 30 and the second driving part 40 are bonded and fixed by the glue 92, so that the relative position of the bonded photosensitive assembly 20 and the lens 10 is maintained at the relative position determined by the active calibration.
  • the glue 92 may be disposed between the base portion of the first driving portion 30 and the base portion of the second driving portion 40 .
  • FIG. 15a shows the arrangement of the camera module and its connection straps in an embodiment of the present application.
  • the camera module may include a first connecting strip 26a and a second connecting strip 26b.
  • the first connecting strip 26a is disposed on the top area of the first driving part 30 and is electrically connected to the first driving part 30 and the second connecting strip 26a.
  • the belt 26b communicates with the circuit board 23 of the photosensitive member 20 .
  • the second connecting belt 26b may be provided with a plurality of bends to form a curved layered shape, so as to buffer the stress caused by the movement of the photosensitive assembly 20 .
  • a connector can be provided at the end of the second connecting strip 26b, and the connector can be optionally fixed and electrically connected to the transfer post 26c by pressing, and then the main board (or other components) of the terminal device is conducted through the transfer post 26c.
  • the end of the first connecting strip 26a can also be connected to a connector, the connector can be fixed by pressing and electrically connected to the transfer column 26c, and then the main board (or other components) of the terminal device can be connected through the transfer column 26c.
  • the conduction circuit of the first driving part 30 can be separated from the photosensitive component 20 and is not affected by the movement of the photosensitive component 20 .
  • the second connecting belt 26b and the intermediate post 26c can be accommodated in the second casing 70 (the second casing 70 can be a connecting belt receiving casing), the first connecting belt 26a is located outside the second casing 70, the second casing
  • the top of the body 70 may have a third through hole 70a, so that the connector of the first connecting strip 26a can protrude into and be in electrical communication with the second connecting strip 26b or the transfer post 26c.
  • FIG. 15b shows a schematic perspective view of the second driving part in an embodiment of the present application.
  • one side surface of the movable part 42 and the base part 41 has a slot or a window, so that the first connecting belt passes through the side of the movable part 42 wall and the side wall of the base portion 41 .
  • the first driving part and the second driving part may constitute a dual optical anti-shake driving structure (also referred to as a dual OIS driving structure).
  • the first driving part is suitable for installing the lens
  • the second driving part is suitable for installing the photosensitive component
  • the lens and the photosensitive chip are configured to be driven simultaneously and move in opposite directions.
  • the lens is driven to move in the positive direction of the x-axis
  • the photosensitive chip is driven to move in the negative direction of the x-axis
  • the lens is driven to move in the positive direction of the y-axis
  • the photosensitive chip is driven to move in the negative direction of the y-axis
  • the lens is driven to move in the negative direction of the y-axis.
  • the x-axis and y-axis move, and the photosensitive chip is driven to move in the opposite direction of the lens movement on the x-axis and y-axis.
  • the directions of the vector and the displacement vector of the photosensitive chip are opposite.
  • the lens and the photosensitive chip are configured to move at the same time, and the lens and the photosensitive chip move in opposite directions, which can achieve faster response and better anti-shake effect.
  • the anti-shake angle range of the existing camera module is usually limited by the suspension system and the driving system, and a relatively large compensation angle range cannot be achieved. Move in the opposite direction to achieve large-angle shake compensation.
  • the distance between the lens and the photosensitive chip is larger.
  • the relative movement stroke of (for convenience of description, this relative movement stroke may be referred to as the anti-shake stroke for short), which can have a better compensation effect.
  • the present application also has a better compensation effect for the tilt shake of the camera module.
  • the movement direction of the anti-shake movement may be limited in the xoy plane, and it is not necessary to tilt the optical axis of the lens or the photosensitive chip, thereby avoiding the problem of image blur caused by the anti-shake movement.
  • FIG. 17 shows a schematic cross-sectional view of a camera module according to another embodiment of the present application.
  • the ball structure is arranged on the outer side of the photosensitive assembly 20 , so as to prevent the ball structure from occupying the space of the camera module in the height direction (ie, in the z-axis direction) , in order to reduce the height of the camera module.
  • the base part 41 may include a base 41a and a cover 41b.
  • the base 41 a includes a base plate 41 a 2 and base side walls 41 a 3 extending upward from the edge of the base plate 41 a 2 .
  • the cover 41b includes a cover side wall 41b1 and a bearing platform 41b2 formed by extending inward from the top of the cover side wall 41b1.
  • the bottom surface of the cover side wall 41b1 may be connected (eg bonded) to the top surface of the base side wall 41a3, and the base side wall 41a3 and the cover side wall 41b1 may together form a complete base side wall.
  • the movable portion 42 may include a movable portion bottom plate 42a, a movable portion sidewall 42b and an epitaxial structure 42c, wherein the movable portion sidewall 42b is formed by extending upward from the edge of the movable portion bottom plate 42a, and the photosensitive assembly 20 can be fixed on The movable part bottom plate 42a and the movable part side wall 42b form the accommodating groove.
  • the epitaxial structure 42c is formed by extending outward from the top of the movable portion sidewall 42b.
  • the epitaxial structure 42c is located between the bearing platform 41b2 of the base portion 41 and the top surface of the base side wall 41a3.
  • the epitaxial structure 42c may be located above the first groove 41a4 on the top surface of the base sidewall 41a3, and the lower surface thereof may be supported by the balls 46, so that the movable portion 42 and the base portion 41 are movably connected.
  • the fifth gap may be greater than 200 ⁇ m, so as to allow the movable portion 42 to have a lateral movement stroke of 200 ⁇ m in one direction. Further, the fifth gap may also be larger than 300 ⁇ m, so as to further increase the lateral movement stroke of the movable portion 42 and improve its anti-shake capability.
  • the camera module has two driving parts, and the first driving part for driving the lens assembly often has a relatively large lateral dimension.
  • the lateral dimension of the second driving part is slightly The increase will not significantly increase the overall lateral size of the module, but can more fully utilize the space outside the photosensitive assembly to significantly reduce the height of the module.
  • mobile terminals such as mobile phones
  • the area of the multi-camera module installation area of the mobile terminal is relatively large. Therefore, there is less restriction on the lateral size of a single camera module.
  • arranging the ball structure on the outside of the photosensitive assembly can reduce the height of the camera module, which is beneficial to reduce the installation of multi-camera modules in mobile terminals (such as mobile phones).
  • the height of the protruding part of the area can significantly improve the user experience of a mobile terminal (eg, a cell phone).
  • FIG. 18 shows a schematic cross-sectional view of a camera module according to another embodiment of the present application.
  • two layers of balls can be arranged between the base portion 41 and the movable portion 42 of the second driving portion 40 , thereby avoiding friction generated when the movable portion 42 moves relative to the base portion 41 .
  • the cover 41b of the base portion 41 can have a better limiting effect in the z-axis direction.
  • the base portion 41 may include a base 41a and a cover 41b.
  • the base 41a includes a base plate 41a2 and base side walls 41a3 extending upward from the edge of the base plate 41a2.
  • the top surface of the base side walls 41a3 can be provided with first grooves 41a4 to accommodate the first balls 46a.
  • the cover 41b includes a cover side wall 41b1 and a bearing platform 41b2 formed by extending inward from the top of the cover side wall 41b1.
  • the bottom surface of the cover side wall 41b1 may be connected (eg bonded) to the top surface of the base side wall 41a3, and the base side wall 41a3 and the cover side wall 41b1 may together form a complete base side wall.
  • the movable portion 42 may include a movable portion bottom plate 42a, a movable portion sidewall 42b and an epitaxial structure 42c, wherein the movable portion sidewall 42b is formed by extending upward from the edge of the movable portion bottom plate 42a, and the photosensitive assembly 20 can be fixed on The movable part bottom plate 42a and the movable part side wall 42b form the accommodating groove.
  • the epitaxial structure 42c is formed by extending outward from the middle of the movable portion sidewall 42b.
  • the epitaxial structure 42b is located between the bearing platform 41b2 of the base portion 41 and the top surface of the base side wall 41a3.
  • the epitaxial structure 42b may be located above the first groove 41a4 on the top surface of the base sidewall 41a3, and the lower surface of the epitaxial structure 42b may be supported by the first balls 46a, so that the movable portion 42 and the base portion 41 are connected. Form active connections. Different from the embodiment of FIG. 17 , in this embodiment, the upper surface of the epitaxial structure 42c is disposed in the second groove 42b1 , and the second ball 46b is disposed in the second groove 42b1 .
  • the bearing platform 41b2 may be supported by the second ball 46b. Due to the addition of the second balls 46b, the connection between the bearing base 41b2 and the movable portion 42 in the z-axis direction is rigid, and has an excellent limiting effect.
  • the second ball 46b also plays a role in reducing the movement resistance, and can also prevent the bearing platform 41b2 from rubbing against the epitaxial structure 42c produce debris.
  • FIG. 7 and FIG. 8 can also be improved by using the design of two layers of balls, so as to improve the z-axis limiting effect while avoiding the cover friction with the movable part.

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Abstract

La présente invention concerne un module de caméra optique anti-tremblement, comprenant : une lentille ; un composant photosensible ; une première partie d'entraînement appropriée pour monter la lentille et entraîner la lentille pour effectuer une translation dans les directions de l'axe x et de l'axe y ; et une seconde partie d'entraînement appropriée pour entraîner une puce photosensible pour effectuer une translation dans les directions de l'axe x et de l'axe y. La seconde partie d'entraînement comprend une seconde partie de base et une seconde partie mobile ; la seconde partie de base comprend une base et un couvercle, au moins une partie de la base est située au-dessous du composant photosensible, le fond du couvercle est relié à la base, et la partie supérieure du couvercle est reliée à la première partie d'entraînement ; la seconde partie mobile est reliée de façon mobile à la seconde partie de base au moyen de billes, et le degré de liberté de mouvement est limité dans un plan xoy au moyen des billes. La lentille et la puce photosensible sont configurées pour être entraînées simultanément et se déplacer dans des directions opposées, et les billes sont situées à l'extérieur de la surface latérale externe du composant photosensible. La présente invention peut augmenter la course anti-tremblement et la vitesse de réponse anti-tremblement d'un module de caméra, et peut également aider à réduire la hauteur du module de caméra.
PCT/CN2021/126324 2020-11-06 2021-10-26 Module de caméra optique anti-tremblement WO2022095751A1 (fr)

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CN111698352A (zh) * 2019-03-14 2020-09-22 南昌欧菲光电技术有限公司 摄像头模组及电子设备
CN110139013A (zh) * 2019-06-01 2019-08-16 瑞声科技(新加坡)有限公司 摄像模组和潜望式摄像头
CN111478549A (zh) * 2020-05-21 2020-07-31 江苏新鑫星科技有限公司 一种摄像模组用音圈马达

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CN116033267A (zh) * 2022-10-13 2023-04-28 荣耀终端有限公司 防抖机构、摄像模组及电子设备
CN116033267B (zh) * 2022-10-13 2023-10-24 荣耀终端有限公司 防抖机构、摄像模组及电子设备

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