CN117528218A - Anti-shake assembly, camera module, anti-shake method of camera module and electronic equipment - Google Patents

Anti-shake assembly, camera module, anti-shake method of camera module and electronic equipment Download PDF

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Publication number
CN117528218A
CN117528218A CN202410015061.9A CN202410015061A CN117528218A CN 117528218 A CN117528218 A CN 117528218A CN 202410015061 A CN202410015061 A CN 202410015061A CN 117528218 A CN117528218 A CN 117528218A
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CN
China
Prior art keywords
light
shake
assembly
lens
camera module
Prior art date
Legal status (The legal status 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 status listed.)
Pending
Application number
CN202410015061.9A
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Chinese (zh)
Inventor
郑耀辉
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Honor Device Co Ltd
Original Assignee
Honor Device Co Ltd
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.)
Filing date
Publication date
Application filed by Honor Device Co Ltd filed Critical Honor Device Co Ltd
Priority to CN202410015061.9A priority Critical patent/CN117528218A/en
Publication of CN117528218A publication Critical patent/CN117528218A/en
Pending legal-status Critical Current

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Classifications

    • GPHYSICS
    • G03PHOTOGRAPHY; CINEMATOGRAPHY; ANALOGOUS TECHNIQUES USING WAVES OTHER THAN OPTICAL WAVES; ELECTROGRAPHY; HOLOGRAPHY
    • G03BAPPARATUS OR ARRANGEMENTS FOR TAKING PHOTOGRAPHS OR FOR PROJECTING OR VIEWING THEM; APPARATUS OR ARRANGEMENTS EMPLOYING ANALOGOUS TECHNIQUES USING WAVES OTHER THAN OPTICAL WAVES; ACCESSORIES THEREFOR
    • G03B5/00Adjustment of optical system relative to image or object surface other than for focusing
    • GPHYSICS
    • G03PHOTOGRAPHY; CINEMATOGRAPHY; ANALOGOUS TECHNIQUES USING WAVES OTHER THAN OPTICAL WAVES; ELECTROGRAPHY; HOLOGRAPHY
    • G03BAPPARATUS OR ARRANGEMENTS FOR TAKING PHOTOGRAPHS OR FOR PROJECTING OR VIEWING THEM; APPARATUS OR ARRANGEMENTS EMPLOYING ANALOGOUS TECHNIQUES USING WAVES OTHER THAN OPTICAL WAVES; ACCESSORIES THEREFOR
    • G03B30/00Camera modules comprising integrated lens units and imaging units, specially adapted for being embedded in other devices, e.g. mobile phones or vehicles
    • HELECTRICITY
    • H04ELECTRIC COMMUNICATION TECHNIQUE
    • H04MTELEPHONIC COMMUNICATION
    • H04M1/00Substation equipment, e.g. for use by subscribers
    • H04M1/02Constructional features of telephone sets
    • H04M1/0202Portable telephone sets, e.g. cordless phones, mobile phones or bar type handsets
    • H04M1/026Details of the structure or mounting of specific components
    • H04M1/0264Details of the structure or mounting of specific components for a camera module assembly
    • HELECTRICITY
    • H04ELECTRIC COMMUNICATION TECHNIQUE
    • H04NPICTORIAL COMMUNICATION, e.g. TELEVISION
    • H04N23/00Cameras or camera modules comprising electronic image sensors; Control thereof
    • H04N23/50Constructional details
    • H04N23/55Optical parts specially adapted for electronic image sensors; Mounting thereof
    • HELECTRICITY
    • H04ELECTRIC COMMUNICATION TECHNIQUE
    • H04NPICTORIAL COMMUNICATION, e.g. TELEVISION
    • H04N23/00Cameras or camera modules comprising electronic image sensors; Control thereof
    • H04N23/57Mechanical or electrical details of cameras or camera modules specially adapted for being embedded in other devices
    • HELECTRICITY
    • H04ELECTRIC COMMUNICATION TECHNIQUE
    • H04NPICTORIAL COMMUNICATION, e.g. TELEVISION
    • H04N23/00Cameras or camera modules comprising electronic image sensors; Control thereof
    • H04N23/60Control of cameras or camera modules
    • H04N23/68Control of cameras or camera modules for stable pick-up of the scene, e.g. compensating for camera body vibrations
    • H04N23/682Vibration or motion blur correction
    • H04N23/685Vibration or motion blur correction performed by mechanical compensation

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  • Engineering & Computer Science (AREA)
  • Signal Processing (AREA)
  • Multimedia (AREA)
  • Physics & Mathematics (AREA)
  • General Physics & Mathematics (AREA)
  • Studio Devices (AREA)

Abstract

The application provides an anti-shake assembly, a camera module, an anti-shake method of the camera module and electronic equipment, and relates to the technical field of electronic equipment. The anti-shake assembly is arranged on the light incident side of the lens assembly and comprises a light-transmitting plate assembly, light-transmitting liquid and a driving structure. The light-transmitting plate assembly is fixed on the lens assembly through the driving structure and covers the light incident surface of the lens assembly. The light-transmitting plate assembly comprises at least two light-transmitting plates which are arranged at intervals along the optical axis of the lens assembly, and light-transmitting liquid is packaged between the adjacent light-transmitting plates. In the shooting process of the camera module, when the electronic equipment shakes, at least one of the light-transmitting plates is driven to rotate through the driving structure, the shape of the light-transmitting plate assembly is changed, and the longitudinal section of the light-transmitting plate assembly is wedge-shaped. And then, the parallel light vertically entering the camera module is deflected after passing through the light-transmitting plate assembly, so that the propagation path of the light entering the lens assembly is changed, and the angle deflection caused by shaking is compensated.

Description

Anti-shake assembly, camera module, anti-shake method of camera module and electronic equipment
Technical Field
The application relates to the technical field of electronic equipment, in particular to an anti-shake assembly, a camera module, an anti-shake method of the camera module and the electronic equipment.
Background
When a user uses a portable electronic device (such as a mobile phone, a tablet personal computer and the like) to take a picture, the hand of the user inevitably shakes, so that a light signal received by a camera deviates, and further the phenomenon of blurring of a shot image is caused.
In order to solve the problem, many electronic devices have an optical anti-shake function on a camera, and the optical anti-shake technology is to add a driving device on a lens or an image sensor to perform micro motion compensation on the lens or the image sensor, control the lens to move relative to the image sensor, compensate image offset caused by hand shake, and ensure the stability of a shot image.
However, the conventional optical anti-shake technology does not move the camera as a whole, which reduces the image quality of the edge of the image and affects the imaging quality.
Disclosure of Invention
The application provides an anti-shake assembly, camera module and anti-shake method, electronic equipment thereof, the simple structure of anti-shake assembly, reliability are high, and anti-shake is effectual, can improve the imaging quality of camera module, promotes electronic equipment's performance.
A first aspect of the present application provides an anti-shake assembly, installed on an incident side of a lens assembly of a camera module, the anti-shake assembly including:
The light-transmitting plate component covers the light incident surface of the lens component; the light-transmitting plate assembly comprises at least two light-transmitting plates which are arranged at intervals along the optical axis of the lens assembly;
light-transmitting liquid is encapsulated between adjacent light-transmitting plates;
the driving structure is used for being mounted on the lens assembly and connected with the light-transmitting plate assembly; the driving structure drives at least one of the light-transmitting plates to rotate so that the longitudinal section of the light-transmitting plate component is wedge-shaped to change the propagation path of light incident to the lens component.
The application provides an anti-shake subassembly installs the income light side at the camera lens subassembly, and anti-shake subassembly includes light-transmitting plate subassembly, printing opacity liquid and drive structure. The light-transmitting plate assembly is fixed on the lens assembly through the driving structure and covers the light-entering surface of the light-entering area of the lens assembly. The light-transmitting plate assembly comprises at least two light-transmitting plates which are arranged at intervals along the optical axis of the lens assembly, and light-transmitting liquid is packaged between the adjacent light-transmitting plates. In the shooting process of the camera module, when the electronic equipment shakes, at least one of the light-transmitting plates is driven to rotate through the driving structure, the shape of the light-transmitting plate assembly is changed, and the longitudinal section of the light-transmitting plate assembly is wedge-shaped. And then, the parallel light vertically entering the camera module is deflected after passing through the light-transmitting plate assembly, so that the propagation path of the light entering the lens assembly is changed, and the angle deflection caused by shaking is compensated. Therefore, the imaging quality of the camera module is improved, and the service performance of the electronic equipment is improved.
In one possible embodiment, the driving structure drives at least one of the light-transmitting plates to rotate around the optical axis of the lens assembly.
Through making the light-transmitting plate deflect around the optical axis of lens subassembly, can make the rotation center of light-transmitting plate and the rotation center coaxial of camera module to the required deflection angle of light-transmitting plate of more accurate control. The anti-shake precision of the anti-shake component is improved, and the imaging quality of the camera module is improved.
In one possible embodiment, the at least two light-transmitting plates include an upper light-transmitting plate and a lower light-transmitting plate, the upper light-transmitting plate being located on a side of the lower light-transmitting plate facing away from the lens assembly;
the light-transmitting liquid is encapsulated between the upper light-transmitting plate and the lower light-transmitting plate, and the driving structure drives at least one of the upper light-transmitting plate and the lower light-transmitting plate to rotate.
Through setting up light-transmitting plate and constituteing the light-transmitting plate subassembly with lower light-transmitting plate, only need fill the printing opacity liquid of certain volume between two light-transmitting plates, the space that the light-transmitting plate subassembly occupy is less, and anti-shake subassembly is small, light in weight, is favorable to frivolous the thinning of electronic equipment. And at least one of the upper light-transmitting plate and the lower light-transmitting plate is driven by the driving structure to rotate, so that the anti-shake assembly is simple in control mode and high in reliability, and the design difficulty of the anti-shake assembly is reduced.
In one possible embodiment, the upper light-transmitting plate is fixed and the driving structure drives the lower light-transmitting plate to rotate.
Through making upper light-transmitting plate fixed, the light-transmitting plate rotates under the drive structure drive, and the drive mode of anti-shake subassembly is simple, easily control, reliability are high, can promote the anti-shake precision of anti-shake subassembly.
In one possible embodiment, the light-transmitting liquid fills the gaps between adjacent light-transmitting plates.
Through making printing opacity liquid be full of the space between the adjacent printing opacity board, only there is this kind of even medium of printing opacity liquid between the adjacent printing opacity board, light propagation path in anti-shake subassembly is comparatively simple, the design of anti-shake subassembly of being convenient for can guarantee the reliability of anti-shake subassembly. And the fluidity of the light-transmitting liquid is good, the rotation of the light-transmitting plate is not hindered, and the light-transmitting plate can be ensured to smoothly rotate to a required angle. Furthermore, the anti-shake precision of the anti-shake component can be improved, and the imaging quality of the camera module is improved.
In one possible embodiment, the driving structure is attached to the outer periphery of the light transmitting plate assembly.
Through connecting the driving structure in the periphery of light-transmitting plate subassembly, the driving structure can not shelter from the income plain noodles of lens subassembly, and the installation of driving structure on the lens subassembly of being convenient for also is convenient for seal connection between driving structure and each light-transmitting plate to with the encapsulation of printing opacity liquid between adjacent light-transmitting plate.
In one possible embodiment, the anti-shake assembly further includes:
the fixed seat is connected with the lens component; the driving structure is connected with the fixing seat.
The second aspect of the present application provides a camera module, including lens assembly and as previously described anti-shake assembly, the anti-shake assembly sets up in the income light side of lens assembly.
The application provides a camera module, including the camera lens subassembly with install the anti-shake subassembly at the income light side of camera lens subassembly, anti-shake subassembly includes printing opacity board subassembly, printing opacity liquid and drive structure. The light-transmitting plate assembly is fixed on the lens assembly through the driving structure and covers the light-entering surface of the light-entering area of the lens assembly. The light-transmitting plate assembly comprises at least two light-transmitting plates which are arranged at intervals along the optical axis of the lens assembly, and light-transmitting liquid is packaged between the adjacent light-transmitting plates. In the shooting process of the camera module, when the electronic equipment shakes, at least one of the light-transmitting plates is driven to rotate through the driving structure, the shape of the light-transmitting plate assembly is changed, and the longitudinal section of the light-transmitting plate assembly is wedge-shaped. And then, the parallel light vertically entering the camera module is deflected after passing through the light-transmitting plate assembly, so that the propagation path of the light entering the lens assembly is changed, and the angle deflection caused by shaking is compensated. Therefore, the imaging quality of the camera module is improved, and the service performance of the electronic equipment is improved.
In one possible embodiment, the lens assembly includes a barrel and a plurality of lenses, each lens being enclosed within the barrel, and each lens being disposed in sequence along an axial direction of the barrel;
wherein, the anti-shake assembly is connected to the lens barrel.
In one possible embodiment, the anti-shake assembly further includes a liquid lens disposed between the lens assembly and the light-transmitting plate assembly of the anti-shake assembly.
When the camera module is a fixed focus module, the liquid lens is arranged in the anti-shake assembly, and can change the focal length, so that the zooming function of the camera module can be realized. And, through setting up liquid lens in the one side that the subassembly is close to the camera lens subassembly that prevents trembling, liquid lens can not exert an influence to the anti-shake performance of anti-trembling subassembly, can improve the anti-shake precision of anti-trembling subassembly.
In one possible embodiment, the lens assembly comprises a lens and a driving device, wherein the lens is movably arranged on the driving device, and the driving device drives the lens to move;
wherein, anti-shake subassembly is connected in drive arrangement.
In one possible embodiment, the camera module further includes:
the prism assembly is arranged on the light incident side of the lens assembly;
the anti-shake assembly is arranged on the light incident side of the prism assembly, or is arranged between the prism assembly and the lens assembly.
In one possible embodiment, the lens assembly includes a barrel and a plurality of lenses, each of the lenses being enclosed within the barrel, and each of the lenses being disposed in sequence along an axial direction of the barrel.
In one possible embodiment, the lens assembly includes a lens and a driving device, the lens being movably mounted to the driving device, the driving device driving the lens to move.
In one possible embodiment, the camera module further includes:
and the driving chip is electrically connected with the driving structure and controls the driving structure to move.
Through setting up drive chip and drive structure electricity to be connected, drive chip can be according to the angle deflection that anti-shake subassembly needs the compensation, sends drive signal to drive structure to control drive structure motion. And the light-transmitting plate is driven to rotate through the driving structure.
In one possible embodiment, the drive chip is arranged in the drive structure or the holder.
In one possible embodiment, the camera module further includes:
and the image sensor assembly is arranged on the light emitting side of the lens assembly.
Through setting up image sensor subassembly at the light-emitting side of lens subassembly, image sensor subassembly can be with shining the optical signal conversion to it and become the electrical signal to realize the imaging function of camera module.
In one possible embodiment, the camera module further includes:
and a filter assembly disposed between the image sensor assembly and the lens assembly.
Through set up the optical filter subassembly between lens subassembly and image sensor subassembly, the infrared light in the emergent light of optical filter subassembly can filtering lens subassembly improves image sensor subassembly's imaging, promotes the imaging quality of camera module.
A third aspect of the present application provides an anti-shake method of a camera module, applied to the camera module as described above, where the anti-shake method includes:
the driving chip generates a driving signal according to the acquired jitter compensation data;
the driving structure drives at least one of the light-transmitting plates to rotate according to the driving signal so as to change the propagation path of the light incident to the lens assembly.
According to the anti-shake method for the camera module, when the camera module is used for shooting, when the electronic equipment shakes, shake compensation data are obtained through the driving chip, driving signals are generated according to the shake compensation data, the driving structure in the anti-shake assembly drives at least one of the light-transmitting plates to rotate according to the driving signals, the shape of the light-transmitting plate assembly is changed, and the longitudinal section of the light-transmitting plate assembly is wedge-shaped. And then, the parallel light vertically entering the camera module is deflected after passing through the light-transmitting plate assembly, so that the propagation path of the light entering the lens assembly is changed, and the angle deflection caused by shaking is compensated. Therefore, the imaging quality of the camera module is improved, and the service performance of the electronic equipment is improved.
In one possible implementation, the driving chip acquires jitter compensation data, including:
the anti-shake chip acquires shake data acquired by the inertial sensor;
the anti-shake chip calculates shake compensation data of the camera module according to the shake data;
the anti-shake chip transmits shake compensation data to the driving chip.
In one possible embodiment, the inertial sensor includes at least one of a gyroscope sensor and an acceleration sensor, and the shake data includes at least one of angular velocity data acquired by the gyroscope sensor and acceleration data acquired by the acceleration sensor;
the anti-shake chip calculates shake compensation data of the camera module according to shake data, including:
the anti-shake chip processes the angular velocity data and/or the acceleration data to obtain a target deflection angle;
the anti-shake chip converts the target deflection angle into shake compensation data.
A fourth aspect of the present application provides an electronic device comprising a housing assembly and a camera module as described above, the camera module being mounted to the housing assembly.
The application provides an electronic equipment, including the casing subassembly with install in the camera module of casing subassembly, the camera module includes the camera lens subassembly and installs the anti-shake subassembly at the income light side of camera lens subassembly, anti-shake subassembly includes light-transmitting plate subassembly, printing opacity liquid and drive structure. The light-transmitting plate assembly is fixed on the lens assembly through the driving structure and covers the light-entering surface of the light-entering area of the lens assembly. The light-transmitting plate assembly comprises at least two light-transmitting plates which are arranged at intervals along the optical axis of the lens assembly, and light-transmitting liquid is packaged between the adjacent light-transmitting plates. In the shooting process of the camera module, when the electronic equipment shakes, at least one of the light-transmitting plates is driven to rotate through the driving structure, the shape of the light-transmitting plate assembly is changed, and the longitudinal section of the light-transmitting plate assembly is wedge-shaped. And then, the parallel light vertically entering the camera module is deflected after passing through the light-transmitting plate assembly, so that the propagation path of the light entering the lens assembly is changed, and the angle deflection caused by shaking is compensated. Therefore, the imaging quality of the camera module is improved, and the service performance of the electronic equipment is improved.
Drawings
Fig. 1 is a schematic structural diagram of an electronic device according to an embodiment of the present application;
fig. 2 is an exploded view of the electronic device shown in fig. 1;
fig. 3 is a schematic structural diagram of another electronic device according to an embodiment of the present application;
FIG. 4 is a schematic view of the electronic device in FIG. 3 in an unfolded state;
FIG. 5 is a schematic view of the electronic device in FIG. 3 in a folded state;
FIG. 6 is an exploded view of the electronic device of FIG. 3;
fig. 7 is a schematic structural diagram of a first camera module provided in an embodiment of the present application;
FIG. 8 is a schematic structural diagram of an anti-shake assembly according to an embodiment of the present disclosure;
FIG. 9 is a schematic structural diagram of another anti-shake assembly according to an embodiment of the disclosure;
fig. 10 is a schematic structural diagram of a second camera module provided in an embodiment of the present application;
fig. 11 is a schematic structural diagram of a third camera module provided in an embodiment of the present application;
fig. 12 is a schematic structural diagram of a fourth camera module provided in an embodiment of the present application;
fig. 13 is a schematic structural diagram of a fifth camera module according to an embodiment of the present disclosure;
fig. 14 is a schematic structural diagram of a sixth camera module provided in the embodiment of the present application;
Fig. 15 is a flowchart illustrating steps of an anti-shake method for a camera module according to an embodiment of the present application.
Detailed Description
The terminology used in the description section of the present application is for the purpose of describing particular embodiments of the present application only and is not intended to be limiting of the present application.
The embodiment of the application provides electronic equipment which can be consumer electronic products. Exemplary electronic devices include, but are not limited to, cell phones, tablet computers (portable android device, PAD), notebook computers, laptop computers (laptop computers), netbooks, ultra-mobile personal computers (UMPC), interphones, POS (Point of sales) sets, personal digital assistants (personal digital assistant, PDA), multimedia players, e-book readers, in-vehicle devices, wearable devices, virtual Reality (VR) devices, augmented reality (augmented reality, AR) devices, and the like. Wherein the wearable device includes, but is not limited to, a smart bracelet, a smart watch, a smart head mounted display, smart glasses, and the like.
Fig. 1 is a schematic structural diagram of an electronic device according to an embodiment of the present application. Referring to fig. 1, taking an electronic device 10 as a bar-type electronic device as an example, for example, the electronic device 10 is a bar-type mobile phone, the electronic device 10 may include a display screen 100 and a housing assembly 200. One side surface of the display screen 100 is used to display image information, and the side surface of the display screen 100 is generally defined as a front surface thereof, and the other side surface opposite to the front surface thereof is a rear surface thereof. The housing assembly 200 is disposed around the periphery and the back of the display screen 100, and is used for supporting and fixing the display screen 100 and providing protection. The front surface of the display screen 100 is exposed outside of the housing assembly 200 for a user to view the content displayed by the display screen 100 or to perform input operations to the electronic device 10.
Taking the example of the bar phone shown in the drawings, the display 100 of the electronic device 10 may be a rigid screen, and the display 100 may be an LCD (Liquid Crystal Display ) display or an OLED (Organic Light-Emitting Diode) display.
Fig. 2 is an exploded structural view of the electronic device shown in fig. 1. Referring to fig. 2, taking a bar-type electronic device as an example, the housing assembly 200 of the electronic device 10 may include a middle frame 201 and a rear cover 202, the middle frame 201 being connected between the display screen 100 and the rear cover 202, the display screen 100 being supported on one side surface of the middle frame 201, and the rear cover 202 being connected on the other side surface of the middle frame 201. The display screen 100 is generally integrally mounted on the middle frame 201, so as to ensure the strength and stability of the display screen 100, and meet the use requirement of the display screen 100. The rear cover 202 is generally connected to the middle frame 201 in a lap joint manner, and the middle frame 201 and the rear cover 202 together enclose a housing cavity, in which devices such as the circuit board 300, the battery 400, the camera module 500, and a microphone (not shown in the figure) are mounted.
The middle frame 201 may include a middle plate portion 2011 and a frame portion 2012, where the middle plate portion 2011 is located between the display screen 100 and the rear cover 202 and is generally parallel to the display screen 100 and the rear cover 202, the frame portion 2012 is enclosed on a peripheral side of the middle plate portion 2011, and the frame portion 2012 may extend, for example, perpendicular to a plate surface of the middle plate portion 2011 and faces two sides of the middle plate portion 2011. Illustratively, the rim portion 2012 and the middle plate portion 2011 may be an integrally formed structure.
The display screen 100 is generally mounted on the middle plate 2011 of the middle frame 201 in an integrally-bonded manner, for example, the display screen 100 is integrally bonded on the middle plate 2011, and the display screen 100 can be stably and firmly supported by virtue of the support of the middle plate 2011 on the display screen 100, so that the display screen 100 has enough strength, and the use requirement of the display screen 100 that is frequently pressed is met. The frame 2012 is formed around the display screen 100 to protect the side of the display screen 100, thereby helping the display screen 100 to resist collision, falling and other risk scenes and protecting the display screen 100 from damage.
The edge of the rear cover 202 is connected to the rim portion 2012 of the middle frame 201, for example, the edge of the rear cover 202 is bonded to the rim portion 2012. A space is provided between the middle plate 2011 of the middle frame 201 and the rear cover 202, and the space forms a housing chamber as described above, so that a device is mounted in the housing chamber between the middle plate 2011 of the middle frame 201 and the rear cover 202.
Fig. 3 is a schematic structural diagram of another electronic device according to an embodiment of the present application; FIG. 4 is a schematic view of the electronic device in FIG. 3 in an unfolded state; fig. 5 is a schematic structural view of the electronic device in fig. 3 in a folded state.
Referring to fig. 3 to 5, taking the electronic device 10 as a foldable electronic device, for example, the electronic device 10 is a foldable mobile phone, the electronic device 10 may include at least two parts capable of rotating relatively, and the electronic device 10 may have different use states under different use situations. Taking a foldable electronic device as an example of the electronic device 10 that can be folded once, the electronic device 10 includes two portions that can rotate relative to each other, and the usage state of the electronic device 10 is changed by the relative rotation of the two portions.
Wherein, the two parts of the electronic device 10 can rotate relatively along the arrow direction shown in fig. 3, when the two parts rotate to be mutually overlapped, the electronic device 10 is in the folding state shown in fig. 4, and at this time, the electronic device 10 has smaller volume and is convenient to carry; the two parts of the electronic device 10 may also rotate relatively in the direction opposite to the arrow direction in fig. 3, when the two parts rotate to be coplanar, the electronic device 10 is in the unfolded state shown in fig. 5, and the unfolded angle α of the electronic device 10 is 180 °, for example, where the electronic device 10 may implement a large screen display; in some cases, the electronic device 10 may also remain in a semi-expanded state (see fig. 3), where the electronic device 10 hovers at an angle between the expanded state and the collapsed state, and exemplary hover angles β of the electronic device 10 may be 120 °, 130 °, 140 °, 150 °, or the like.
It should be noted that the angles illustrated in this embodiment allow for slight deviations. For example, the expansion angle α of the electronic device 10 is 180 °, which means that the expansion angle α may be 180 °, or may be about 180 °, such as 170 °, 175 °, 185 °, 190 °, or the like. The angles illustrated hereinafter are to be understood identically.
In addition to the electronic device 10 that can be folded once, the electronic device 10 may be the electronic device 10 that can be folded twice or more. At this time, the electronic device 10 may include a plurality of portions that are sequentially rotatably connected, and two adjacent portions may be relatively close to each other to be folded into a folded state, and two adjacent portions may be relatively far apart to be unfolded into an unfolded state.
Fig. 6 is an exploded structural view of the electronic device in fig. 3. Referring to fig. 6, for a foldable electronic device, the electronic device 10 may also include a display screen 100 and a housing assembly 200, where the front surface of the display screen 100 is used for displaying image information, and the housing assembly 200 is enclosed on the peripheral side and the back surface of the display screen 100 and used for supporting and fixing the display screen 100 and providing protection, which is not described herein.
Wherein the display screen 100 of the foldable electronic device may include a foldable screen 100a capable of being folded, the foldable screen 100a may include a first region 110, a second region 120, and a foldable region 130, the foldable region 130 being located between the first region 110 and the second region 120. In the use process of the electronic device 10, the first area 110 and the second area 120 are always kept in a planar state, and the bendable area 130 can be bent to change the included angle between the first area 110 and the second area 120, so that the folding screen 100a is folded or unfolded along with the movement of the housing assembly 200, and the electronic device 10 is switched between the folded state and the unfolded state.
Illustratively, in the folding screen 100a, at least the pliable region 130 is made of a flexible material so that the pliable region 130 is pliable. The first and second regions 110 and 120 may be made of a flexible material, may be made of a rigid material, or may be made of a flexible material.
The folding screen 100a includes, but is not limited to, an organic light-emitting diode (OLED) display screen, an active-matrix organic light-emitting diode (AMOLED) display screen, a mini-led (mini organic light-emitting diode) display screen, a micro-led (micro organic light-emitting diode) display screen, a micro-organic led (micro organic light-emitting diode) display screen, or a quantum dot led (quantum dot light emitting diodes, QLED) display screen, etc.
As shown in fig. 4 and 6, when the folding screen 100a is in the folded state, the first area 110 and the second area 120 are stacked relatively, the foldable area 130 is in the folded state, and the folding angle of the foldable area 130 is 180 °. At this time, the electronic device 10 has a small size and is convenient to carry and store. As shown in fig. 5 and 6, when the folding screen 100a is in the unfolded state, the first region 110 and the second region 120 are in the unfolded state relatively far away, the foldable region 130 is in the flattened state in which no bending occurs, and the first region 110, the second region 120 and the foldable region 130 are oriented identically and are in the coplanar state. At this time, the included angle between the first area 110 and the second area 120 is 180 °, and the folding screen 100a can realize a large screen display, so as to bring a better use experience to the user.
It should be noted that, in the drawings, the foldable electronic device is an in-folded electronic device, when the electronic device 10 is in the folded state, the first area 110 and the second area 120 of the folding screen 100a are relatively attached, and the housing assembly 200 is enclosed outside the folding screen 100a, so as to prevent the folding screen 100a from being scratched by a hard object. Referring to fig. 3 or 4, if the foldable electronic device needs to implement the display function in the folded state, a bar screen 100b may be added to the back of the housing assembly 200. In the folded state, the electronic device 10 realizes a display function by means of the bar screen 100b.
In other words, the display screen 100 of the in-folding electronic device may include a folding screen 100a and a straight panel screen 100b. The folding screen 100a may be mounted on the front surface of the housing assembly 200, and the folding screen 100a may be switched between a folded state and an unfolded state as the housing assembly 200 moves. When the electronic device 10 is in the folded state, the folded screen 100a is not visible to the outside. The bar screen 100b may be mounted on the back of the housing assembly 200, the bar screen 100b being displayed when the electronic device 10 is in a folded state.
In other examples, the folding electronic device may also be an out-folding electronic device. When the electronic device 10 is in the folded state, the first region 110 and the second region 120 of the folding screen 100a are opposite, the housing assembly 200 is located between the first region 110 and the second region 120, and the folding screen 100a is enclosed outside the housing assembly 200 and is visible to a user. When the external folding electronic device is in the folded state, the folding screen 100a is exposed, and the display function can be realized by using the folding screen 100a, so that the display function of the electronic device 10 in the folded state is not required, and the straight screen 100b is additionally added on the back surface of the shell.
Additionally, as shown in connection with fig. 3 and 6, in some embodiments, a foldable electronic device, and particularly an in-folded electronic device, may rely on a damping force provided by the housing assembly 200 to hover the electronic device 10 in a semi-deployed state between an deployed state and a folded state. At this time, the folding screen 100a stays in the half-unfolded state along with the housing assembly 200, the foldable area 130 of the folding screen 100a is also in the folded state, and the foldable area 130 is folded to a smaller extent than the folded state, and the first area 110 and the second area 120 of the folding screen 100a are inclined relatively. Taking the hover angle of the electronic device 10 as 120 °, 130 °, 140 °, 150 °, etc., the included angle between the first region 110 and the second region 120 may be 120 °, 130 °, 140 °, 150 °, etc., respectively.
For a foldable electronic device, the housing assembly 200 needs to drive the foldable screen 100a to switch between a folded state and an unfolded state in addition to supporting and fixing the display screen 100. In this regard, referring to fig. 6, the housing assembly 200 of the folder-type electronic device may include a first housing 210, a second housing 220, and a rotation shaft 230, the rotation shaft 230 being connected between the first housing 210 and the second housing 220, the first housing 210 and the second housing 220 being rotatably connected through the rotation shaft 230, thereby achieving relative rotation between the first housing 210 and the second housing 220.
The first housing 210 supports and fixes the first area 110 of the folding screen 100a, the second housing 220 supports and fixes the second area 120 of the folding screen 100a, in other words, the first area 110 of the folding screen 100a is fixedly connected to the first housing 210, the second area 120 of the folding screen 100a is fixedly connected to the second housing 220, and the bendable area 130 of the folding screen 100a is disposed corresponding to the rotation axis 230. When the rotating shaft 230 drives the first housing 210 and the second housing 220 to rotate relatively, the first area 110 and the second area 120 of the folding screen 100a change the orientation, and the bendable area 130 of the folding screen 100a bends or flattens along with the change of the orientation of the first area 110 and the second area 120.
The rotating shaft 230 drives the first housing 210 and the second housing 220 to rotate relatively, so that the electronic device 10 is switched between a folded state and an unfolded state. The first case 210 and the second case 220 may be rotated in a direction approaching each other until they are stacked relatively, at which time the case assembly 200 is in a folded state and the folding screen 100a is in a folded state according to the folding of the case assembly 200, as shown in fig. 4. The first housing 210 and the second housing 220 may be rotated away from each other until they are coplanar, at which time the housing assembly 200 is in an unfolded state and the folding screen 100a is in an unfolded state as the housing assembly 200 is unfolded, as shown in fig. 5.
Illustratively, the first housing 210 may have a support surface facing the first region 110 of the folding screen 100a, the first region 110 of the folding screen 100a being attached to the support surface of the first housing 210, e.g., the first region 110 of the folding screen 100a being adhered to the support surface of the first housing 210. Similarly, the second housing 220 may have a support surface facing the second region 120 of the folding screen 100a, the second region 120 of the folding screen 100a being attached to the support surface of the second housing 220, e.g., the second region 120 of the folding screen 100a being adhered to the support surface of the second housing 220.
In addition, each of the first and second cases 210 and 220 may have a housing cavity in which some functional devices of the electronic apparatus 10 are mounted, for example, devices such as the circuit board 300, the battery 400, the camera module 500, and a microphone (not shown in the drawing) are mounted. For example, the first case 210 and the second case 220 may each be provided therein with a circuit board 300, and electrical connection between devices in the two cases is achieved through the circuit boards 300 in the two cases; the battery 400 for supplying power to the device may be provided only in the first housing 210 or the second housing 220, or the battery 400 may be provided in both the first housing 210 and the second housing 220; as for other devices such as the camera module 500 and the microphone, the devices may be disposed in the first housing 210 or the second housing 220, or some of the devices may be disposed in the first housing 210 and some of the devices may be disposed in the second housing 220.
With continued reference to fig. 6, in the case assembly 200 of the folding electronic device, the first case 210 and the second case 220 may each include a middle frame 201, and the first region 110 and the second region 120 of the folding screen 100a may be supported at the front surface of the corresponding middle frame 201. For an external folding electronic device or an internal folding electronic device without an additional straight panel screen 100b, the first housing 210 and the second housing 220 of the electronic device 10 may further include a rear cover 202, where the rear cover 202 is connected to a surface of the middle frame 201 facing away from the folding screen 100 a; for the in-folded electronic device in which the straight panel screen 100b is additionally provided, one of the first case 210 and the second case 220 may not include the rear cover 202, but instead the straight panel screen 100b is mounted at the rear surface of the middle frame 201.
In the first casing 210 and the second casing 220, the middle frame 201 and the rear cover 202 (or the straight panel screen 100 b) jointly enclose a housing cavity, and the housing cavity is used for mounting the aforementioned devices such as the circuit board 300, the battery 400, the camera module 500, the microphone, and the like.
The user may take a photograph with a camera module in the electronic device, for example, take a photograph with the camera module, record a video, etc.
During shooting of a handheld electronic device, a human hand often shakes. For example, in a stationary state, the human hand may inevitably shake; the amplitude of the shake of the human hand may also be increased when in motion. The shake of the human hand is transferred to the electronic device, so that the electronic device shakes. Furthermore, the deviation of the optical signals received by the camera module is caused, so that the problems of blurring and unclear images shot by the camera module are caused.
In order to improve the imaging definition of the camera module, many electronic devices all adopt an anti-shake technology to perform anti-shake processing on the camera module. Currently, anti-shake techniques are mainly classified into three types, namely an electronic anti-shake technique (electric image etabilization, EIS), an optical anti-shake technique (optical image stabilization, OIS) and a micro-pan-tilt (gimbal stabilization, GS) anti-shake technique. The electronic anti-shake technology mainly realizes anti-shake through a software algorithm, and may generate a certain degree of image distortion. The micro-cradle head is provided with a mechanical structure to drive (comprising a lens and an image sensor) the whole camera module to make motion which is opposite to the shaking direction but has an amplitude close to that of the shaking direction. However, the current micro-cradle head has larger structural size, occupies a large space of the motherboard, is difficult to assemble, and requires to sacrifice part of battery capacity.
Therefore, the anti-shake technology widely used in the existing electronic devices is an optical anti-shake technology. The optical anti-shake technology controls the lens to move relative to the image sensor by adding a driving device on the lens or the image sensor, and performs tiny motion compensation on the lens or the image sensor. The shaking of the electronic equipment is counteracted by adjusting the position of the optical element, so that the shot image is ensured to be stable.
However, in the conventional optical anti-shake technology, the camera module is not moved as a whole, but the lens and the image sensor are moved relatively. In this way, the edge quality of the image is reduced, and the imaging quality of the camera module is affected.
In view of this, the embodiment of the application provides an anti-shake assembly, a camera module, an anti-shake method thereof, and an electronic device, wherein the anti-shake assembly is mounted on an incident side of a lens assembly, and the anti-shake assembly includes a light-transmitting plate assembly, a light-transmitting liquid and a driving structure. The light-transmitting plate assembly is fixed on the lens assembly through the driving structure and covers the light incident surface of the lens assembly. The light-transmitting plate assembly comprises at least two light-transmitting plates which are arranged at intervals along the optical axis of the lens assembly, and light-transmitting liquid is packaged between the adjacent light-transmitting plates. In the shooting process of the camera module, when the electronic equipment shakes, at least one of the light-transmitting plates is driven to rotate through the driving structure, the shape of the light-transmitting plate assembly is changed, and the longitudinal section of the light-transmitting plate assembly is wedge-shaped. And then, the parallel light vertically entering the camera module is deflected after passing through the light-transmitting plate assembly, so that the propagation path of the light entering the lens assembly is changed, and the angle deflection caused by shaking is compensated. Therefore, the imaging quality of the camera module is improved, and the service performance of the electronic equipment is improved.
The following describes the camera module and the anti-shake component therein in detail.
Fig. 7 is a schematic structural diagram of a first camera module according to an embodiment of the present application. Referring to fig. 7, in the present embodiment, a camera module 500 may include a lens assembly 510 and an anti-shake assembly 520. The lens assembly 510 is used for collecting ambient light and converging the collected light. The anti-shake assembly 520 is mounted on the lens assembly 510 for realizing an anti-shake function of the camera module 500.
For ease of illustration, the present embodiment defines an entrance side and an exit side of the lens assembly 510. As the name suggests, the light incident side of the lens assembly 510 is the side that receives light, and the light exiting side of the lens assembly 510 is the side that emits light. Ambient light enters the lens assembly 510 from the light entrance side of the lens assembly 510, propagates through the lens assembly 510, and is converged by the lens assembly 510 to form light rays, which are emitted from the light exit side of the lens assembly 510.
The anti-shake assembly 520 is mounted on the light incident side of the lens assembly 510, and the anti-shake assembly 520 is used for changing the propagation path of the light incident to the lens assembly 510 so as to realize the anti-shake function of the camera module 500. Specifically, in the process of photographing through the camera module 500, when the electronic device shakes, the anti-shake assembly 520 works to change the propagation path of the light incident to the lens assembly 510, and compensate for the angular deflection caused by the shake.
With continued reference to fig. 7, the camera module 500 may further include an image sensor assembly 530, the image sensor assembly 530 being disposed on the light exit side of the lens assembly 510. Light emitted from the light emitting side of the lens assembly 510 is irradiated to the image sensor assembly 530, and the image sensor assembly 530 performs photoelectric conversion on the light received by the image sensor assembly, and converts an optical signal into an electrical signal, so as to implement an imaging function of the camera module 500.
The image sensor assembly 530 may include an image sensor 531 and a module circuit board 532, where the image sensor 531 is mounted on the module circuit board 532, and the module circuit board 532 controls the image sensor 531 to operate. The image sensor 531 is mounted on a side of the module circuit board 532 facing the lens assembly 510, and a light sensing surface of the image sensor 531 faces the lens assembly 510. The light emitted from the lens assembly 510 irradiates the image sensor 531, and the image sensor 531 converts the received light signal into an electrical signal, so as to implement the imaging function of the camera module 500.
The module circuit board 532 may be a rigid circuit board, for example, the module circuit board 532 may be a printed circuit board (printed circuit board, abbreviated as PCB). The module circuit board 532 may be electrically connected to a motherboard in the electronic device, for example, the module circuit board 532 is electrically connected to the motherboard through a flexible circuit board (flexible printed circuit, abbreviated as FPC) to control the operation of the image sensor assembly 530 through the motherboard. In addition, an image processor may be integrated on the motherboard, and the image processor is electrically connected to the image sensor 531, where the electrical signal converted by the image sensor 531 is usually a digital signal, and the image processor is used for converting the digital signal into an image signal.
With continued reference to fig. 7, the camera module 500 may further include a filter assembly 540, and the filter assembly 540 may be disposed between the image sensor assembly 530 and the lens assembly 510. That is, the light emitted from the lens assembly 510 passes through the filter assembly 540 and then irradiates the image sensor assembly 530. The filtering component 540 is used for filtering infrared light in the outgoing light of the lens component 510, improving the imaging effect of the image sensor component 530, and improving the imaging quality of the camera module 500.
The filter assembly 540 may include a filter 541 for filtering infrared light in the outgoing light of the lens assembly 510, and a bracket 542 for supporting the filter 541, or the filter 541 is mounted on the bracket 542. The bracket 542 may be a frame structure, and a mounting opening (optical filter 541) is formed on the bracket 542, the mounting opening corresponds to the light emitting side of the lens assembly 510, and the mounting opening corresponds to the image sensor 531, and the optical filter 541 covers the mounting opening, so that the outgoing light of the lens assembly 510 can pass through the optical filter 541 and irradiate the image sensor 531.
The filter 541 may be a reflective filter 541, for example, the filter 541 is a common infrared filter 541, and the infrared filter 541 may reflect infrared light in the outgoing light of the lens assembly 510 to filter infrared light in the outgoing light. The optical filter 541 may be an absorption optical filter 541, for example, the optical filter 541 is a blue glass optical filter 541, and the blue glass optical filter 541 can absorb infrared light in outgoing light, so that no large reflection exists, no halation phenomenon is formed on an image, the true color of the image can be improved, and the problem of color distortion of the image is avoided.
Illustratively, the bracket 542 of the filter assembly 540 may be mounted on the circuit board of the image sensor assembly 530, the lens assembly 510 is mounted on the bracket 542 of the filter assembly 540, and the anti-shake assembly 520 is mounted on the lens assembly 510 to assemble the camera module 500 as a whole.
With continued reference to fig. 7, as an embodiment, the camera module 500 may be a Fixed Focus (FF) module, in other words, the anti-shake component 520 may be applied to the fixed focus module. At this time, the lens assembly 510 of the camera module 500 may include a lens barrel 511 and a plurality of lenses (not shown in the drawing), which may be enclosed within the lens barrel 511, and which may be sequentially disposed in an axial direction of the lens barrel 511. The optical axis of each lens may be parallel to the axis of the barrel 511, for example, the center of each lens may pass through the central axis of the barrel 511.
The filter assembly 540 may be connected to the light-emitting side of the lens barrel 511, for example, the bracket 542 of the filter assembly 540 is adhered to the end surface of the light-emitting side of the lens barrel 511. The anti-shake assembly 520 may be coupled to the light incident side of the lens barrel 511, for example, the anti-shake assembly 520 is coupled to the outer sidewall of the lens barrel 511.
Fig. 8 is a schematic structural diagram of an anti-shake assembly according to an embodiment of the present application. Referring to fig. 8, in the present embodiment, an anti-shake assembly 520 mounted on the light incident side of a lens assembly 510 may include a light-transmitting plate assembly 521, a light-transmitting liquid 522 and a driving structure 523. The light-transmitting plate component 521 covers the light incident surface of the lens component 510, the light-transmitting liquid 522 is encapsulated in the light-transmitting plate component 521, the driving structure 523 is mounted on the lens component 510, and the driving structure 523 is connected with the light-transmitting plate component 521. The driving structure 523 is used for driving the light transmitting plate assembly 521 to move so as to change the shape of the light transmitting plate assembly 521.
By arranging the light-transmitting plate component 521 corresponding to the light-incident surface of the lens component 510, the light-transmitting plate component 521 can completely cover the light-incident surface of the lens component 510, and ambient light needs to pass through the light-transmitting plate component 521 to enter the lens component 510. The light transmissive liquid 522 is encapsulated within the light transmissive plate assembly 521, and as the shape of the light transmissive plate assembly 521 changes, the light transmissive liquid 522 flows within the light transmissive plate assembly 521, matching the shape of the light transmissive plate assembly 521.
The light-transmitting plate assembly 521 includes at least two light-transmitting plates 521a, and each light-transmitting plate 521a is disposed along the optical axis of the lens assembly 510 at intervals. A light-transmitting liquid 522 is encapsulated between every two adjacent light-transmitting plates 521a, or the light-transmitting liquid 522 is encapsulated between the adjacent light-transmitting plates 521a. The driving structure 523 may drive at least one of the light-transmitting plates 521a to rotate, or the driving structure 523 may drive at least one of the light-transmitting plates 521a to rotate, so as to change the shape of the light-transmitting plate 521, so that the longitudinal section (the section along the optical axis direction of the lens assembly) of the light-transmitting plate 521 is wedge-shaped, and further, the propagation path of the light is changed.
By arranging at least two light-transmitting plates 521a at intervals along the optical axis of the lens assembly 510 to form the light-transmitting plate assembly 521, the ambient light incident on the lens assembly 510 sequentially passes through each light-transmitting plate 521a. In addition, by encapsulating the light-transmitting liquid 522 between the adjacent light-transmitting plates 521a, the light-transmitting liquid 522 occupies a certain space, or, on the light path where the ambient light is incident on the lens assembly 510, the light-transmitting liquid 522 can ensure that the light has a sufficient length of optical path in the anti-shake assembly 520. In addition, when the driving structure 523 drives the at least one light-transmitting plate 521a to rotate, the ambient light sequentially passes through the light-transmitting liquid 522 between each light-transmitting plate 521a and the adjacent light-transmitting plate 521a, so that the light can be ensured to generate obvious angular deflection, the anti-shake component 520 can be ensured to change the propagation path of the light, and the angular deflection generated by shake of the electronic device 10 is compensated.
Fig. 8 (a) shows a structure in which the anti-shake assembly 520 is in a normal state. Referring to fig. 8 (a), when the anti-shake unit 520 is in a normal state, the light-transmitting plates 521a of the light-transmitting plate unit 521 are parallel to each other, and the longitudinal section of the light-transmitting plate unit 521 is rectangular. The plate surface of each light-transmitting plate 521a is perpendicular to the optical axis of the lens assembly 510, or the optical axis of the lens assembly 510 passes through each light-transmitting plate 521a. At this time, as indicated by the dotted arrows, the ambient light is incident on the anti-shake unit 520 in parallel light perpendicular to the light-transmitting plates 521a, passes through the anti-shake unit 520 vertically, and then exits, and the lens unit 510 receives the vertically incident parallel light.
Fig. 8 (b) shows a structure in which the anti-shake assembly 520 is in an anti-shake state. Referring to fig. 8 (b), when the anti-shake assembly 520 is in an anti-shake state, the driving structure 523 drives at least one of the light-transmitting plates 521a to rotate, and the rotated light-transmitting plate 521a may be in an inclined state. That is, an included angle is formed between the rotated light-transmitting plate 521a and the non-rotated light-transmitting plate 521a, the plate surface of the rotated light-transmitting plate 521a is not perpendicular to the optical axis of the lens assembly 510, and the longitudinal section of the light-transmitting plate assembly 521 is wedge-shaped. At this time, as indicated by the broken line arrow in the figure, the parallel light vertically incident on the light-transmitting plate member 521 is transmitted to the inclined light-transmitting plate 521a, and then the transmission path of the light is changed, so that the light emitted from the light-transmitting plate member 521 is deflected.
In the process of shooting by the camera module 500, when the electronic device shakes, the driving structure 523 drives the light-transmitting plate assemblies 521 to move, so that at least one of the light-transmitting plates 521a rotates to an inclined state, and the longitudinal section of the light-transmitting plate assemblies 521 is wedge-shaped. Thus, the original normal parallel light beam is changed in its propagation path after passing through the anti-shake unit 520, and the light beam is deflected by a certain angle to be incident to the lens unit 510 in an oblique (non-normal) direction. In this way, the angle deflection caused by the shake of the electronic device can be compensated, the imaging quality of the camera module 500 can be improved, and the service performance of the electronic device can be improved.
It can be understood that, since the lens assembly 510 has the function of converging light, the parallel light enters the lens assembly 510 from the light entrance side of the lens assembly 510, is converged in the lens assembly 510, and is deflected at a slight angle after exiting from the light exit side of the lens assembly 510. Therefore, in the embodiment, the anti-shake assembly 520 is disposed on the light incident side of the lens assembly 510, and the anti-shake assembly 520 adjusts the propagation path of the parallel light before entering the lens assembly 510, so as to accurately adjust and control the deflection angle of the parallel light. Further, the anti-shake accuracy of the anti-shake unit 520 can be ensured, and the amount of angular deflection caused by shake of the electronic device can be accurately compensated.
When the driving structure 523 drives the light-transmitting plate 521a to rotate, the light-transmitting plate 521a can rotate around the optical axis of the lens assembly 510. Alternatively, the light-transmitting plate 521a may be deflected by an angle change with the optical axis of the lens assembly 510 as a rotation axis. Thus, the rotation center of the transparent plate 521a is located on the optical axis of the lens assembly 510, and the rotation center of the camera module 500 is also located on the optical axis of the lens assembly 510, and the rotation center of the transparent plate 521a is coaxial with the rotation center of the camera module 500. Thus, the relationship between the angle deflection of the camera module 500 and the deflection angle of the light-transmitting plate 521a can be more precisely matched, the anti-shake precision of the anti-shake component 520 can be improved, and the imaging quality of the camera module 500 can be improved.
With continued reference to fig. 8, when the anti-shake assembly 520 is provided, the driving structure 523 may be coupled to the outer periphery of the light-transmitting plate assembly 521. For example, the driving structure 523 is connected to the outer edge of each light-transmitting plate 521 a. Wherein, for the light-transmitting plate 521a that does not need to rotate, the light-transmitting plate 521a may be fixedly connected with the driving structure 523; for the light-transmitting plate 521a to be rotated, the light-transmitting plate 521a may be movably connected with the driving structure 523.
Since the light-transmitting plate component 521 can completely cover the light-incident surface of the lens component 510, the driving structure 523 located at the periphery of the light-transmitting plate component 521 can not block the light-incident surface of the lens component 510, so as to ensure the light-incident flux of the lens component 510. In addition, the driving structure 523 is convenient to be mounted on the lens assembly 510, for example, the driving structure 523 may be enclosed outside the outer side wall of the lens assembly 510, and the outer side wall of the lens assembly 510 may serve as a mounting base of the anti-shake assembly 520. In addition, the driving structure 523 may surround the light-transmitting plate assembly 521 in a circle, for example, the driving structure 523 is a ring structure, so as to facilitate sealing connection between the driving structure 523 and each light-transmitting plate 521a, so as to encapsulate the light-transmitting liquid 522 between adjacent light-transmitting plates 521 a.
As to how the driving structure 523 drives the light-transmitting plate 521a to rotate, a driving module may be disposed in the driving structure 523, and the light-transmitting plate 521a may be driven to rotate by the driving module. The driving modules may be connected to the edge of the light-transmitting plate 521a, and multiple groups of driving modules may be disposed at intervals along the circumferential direction of the light-transmitting plate 521a, and each group of driving modules may be disposed at uniform intervals along the circumferential direction of the light-transmitting plate 521a, for example. By controlling the movement positions of the respective sets of driving modules, the deflection angle of the light-transmitting plate 521a is controlled.
For example, the driving module in the driving structure 523 may be a magnetic assembly, for example, the magnetic assembly may include a magnetic block and a magnetic coil, where the magnetic coil is mounted on the driving structure 523, and the magnetic block is connected with the light-transmitting plate 521a, and generates a magnetic force between the magnetic coil and the magnetic block. The deflection angle of the light-transmitting plate 521a is controlled by controlling the magnetic force generated by each set of magnetic components.
The driving module in the driving structure 523 may also include a driving motor and a linear module, the driving motor may be installed in the driving structure 523, the linear module may be connected with the light-transmitting plate 521a, and the driving motor drives the linear module to move. The deflection angle of the light-transmitting plate 521a is controlled by controlling the movement amount of each linear module.
As for the connection of the anti-shake assembly 520 with the lens assembly 510, in some examples, the anti-shake assembly 520 may be directly connected with the lens assembly 510 through a driving mechanism. For example, the driving structure 523 may be disposed around the outer side wall of the lens assembly 510, and the driving structure 523 is adhered to, welded to, or mechanically connected to the outer side wall of the lens assembly 510 by a locking member such as a screw or a rivet. In other examples, the anti-shake assembly 520 may further include a fixing base 524, where the fixing base 524 is used to connect with the lens assembly 510, for example, the fixing base 524 is adhered to an outer sidewall of the lens assembly 510, welded, or mechanically connected by a locking member. The driving structure 523 may be connected to the fixing base 524, for example, the driving structure 523 is adhered, welded or mechanically connected to the top end of the fixing base 524 through a locking member.
With continued reference to fig. 8, when the anti-shake assembly 520 is provided, the light-transmitting liquid 522 may be allowed to fill the gaps between the adjacent light-transmitting plates 521 a. That is, the gaps between the adjacent light-transmitting plates 521a are all filled with the light-transmitting liquid 522, and no gap exists in the gaps between the adjacent light-transmitting plates 521 a.
On the one hand, only the medium of the transparent liquid 522 exists between the adjacent transparent plates 521a, light can be transmitted along a straight line between the adjacent transparent plates 521a, and the transmission path of the light in the anti-shake assembly 520 is simpler, so that the relation between the angle deflection amount of shake of the electronic equipment and the rotation angle of the transparent plates 521a can be matched conveniently. The design difficulty of the anti-shake assembly 520 can be reduced, and the reliability of the anti-shake assembly 520 can be ensured. Furthermore, the anti-shake precision of the anti-shake component 520 is improved, and the imaging quality of the camera module 500 is improved.
On the other hand, since the light-transmitting liquid 522 is uniform between the adjacent light-transmitting plates 521a, the light-transmitting liquid 522 has good fluidity without being blocked by air. When the driving structure 523 drives the light-transmitting plate 521a to rotate, the light-transmitting liquid 522 can flow along with the rotation of the light-transmitting plate 521a, so that the smoothness of the rotation of the light-transmitting plate 521a can be ensured. Furthermore, the light-transmitting plate 521a can be ensured to smoothly rotate to a required angle, so as to precisely control the deflection angle of the light after passing through the anti-shake component 520, improve the anti-shake precision of the anti-shake component 520, and improve the imaging quality of the camera module 500.
The light-transmitting plate 521a is made of a light-transmitting material. For example, the light-transmitting plate 521a may be a glass plate, or the light-transmitting plate 521a may be a tempered glass plate, or the light-transmitting plate 521a may be made of plastic such as polymethyl methacrylate (poly (methyl methacrylate), abbreviated as PMMA), polystyrene (PS), or Polycarbonate (PC).
The light-transmitting liquid 522 enclosed between the adjacent light-transmitting plates 521a should also be able to transmit light. For example, liquid crystal may be poured into the space between the adjacent light-transmitting plates 521a, and the liquid crystal may be encapsulated between the adjacent light-transmitting plates 521a to form the light-transmitting liquid 522.
In fig. 8, for the sake of convenience, the light-transmitting plate assembly 521 includes two light-transmitting plates 521a, and the two light-transmitting plates 521a are respectively defined as an upper light-transmitting plate 5211 and a lower light-transmitting plate 5212 in this embodiment, wherein the upper light-transmitting plate 5211 is far from the lens assembly 510, the lower light-transmitting plate 5212 is close to the lens assembly 510, or the upper light-transmitting plate 5211 is located at a side of the lower light-transmitting plate 5212 facing away from the lens assembly 510. The light-transmitting liquid 522 is enclosed between the upper light-transmitting plate 5211 and the lower light-transmitting plate 5212. The driving structure 523 drives at least one of the upper and lower light-transmitting plates 5211 and 5212 to rotate.
The driving structure 523 drives at least one of the upper light-transmitting plate 5211 and the lower light-transmitting plate 5212 to rotate, and changes the shape of the light-transmitting plate assembly 521, so that the light-transmitting plate assembly 521 (shown in fig. 8 (a)) which is rectangular in cross section originally is changed into the light-transmitting plate assembly 521 (shown in fig. 8 (b)) which is wedge-shaped in cross section. Furthermore, the parallel light vertically incident to the light-transmitting plate component 521 is deflected after passing through the light-transmitting plate component 521, and is emitted in a direction inclined to the optical axis of the lens component 510, so as to compensate the angle deflection caused by the shake of the electronic device, and improve the imaging quality of the camera module 500.
It should be noted that, by providing the upper light-transmitting plate 5211 and the lower light-transmitting plate 5212, the shape of the light-transmitting plate assembly 521 can be changed as long as one of the upper light-transmitting plate 5211 and the lower light-transmitting plate 5212 can be rotated by the driving structure 523. When the light-transmitting plate component 521 moves to a wedge-shaped cross section, the original vertically incident parallel light passes through the light-transmitting plate component 521, and the propagation path of the light is changed, and the light is emitted at a non-vertical inclination angle, so that the angle deflection generated by the shake of the electronic device can be compensated, and the anti-shake requirement of the camera module 500 is met.
Also, since the light-transmitting plate assembly 521 includes only two light-transmitting plates 521a of the upper light-transmitting plate 5211 and the lower light-transmitting plate 5212, it is also only necessary to fill a certain volume of the light-transmitting liquid 522 between the two light-transmitting plates 521 a. Thus, the anti-shake assembly 520 has a smaller overall volume and occupies a smaller space, which is beneficial to reducing the overall volume of the camera module 500 and meeting the light and thin requirements of electronic equipment. And, the anti-shake assembly 520 is light in weight, which is beneficial to reducing the overall weight of the camera module 500. In addition, the anti-shake component 520 has a simple control manner and high reliability, and is beneficial to reducing the difficulty of anti-shake design of the camera module 500.
When the light transmitting plate assembly 521 includes only two light transmitting plates 521a of the upper light transmitting plate 5211 and the lower light transmitting plate 5212, the driving structure 523 drives at least one of the upper light transmitting plate 5211 and the lower light transmitting plate 5212 to rotate to change the shape of the light transmitting plate assembly 521. Further, the propagation path of the light emitted from the anti-shake component 520 is changed, so that the light incident to the lens component 510 is deflected to compensate for the angular deflection caused by the shake of the electronic device.
In fig. 8, the driving structure 523 drives the lower transparent plate 5212 to rotate, the upper transparent plate 5211 is fixed, and the upper transparent plate 5211 is always perpendicular to the optical axis of the lens assembly 510. At this time, as shown by the dotted arrows in the figure, the ambient light is incident on the anti-shake member 520 in a parallel light perpendicular to the upper light-transmitting plate 5211, and the parallel light propagates through the upper light-transmitting plate 5211 and the light-transmitting liquid 522 in a straight line. Referring to fig. 8 (a), when the anti-shake unit 520 is in a normal state, the lower light-transmitting plate 5212 is parallel to the upper light-transmitting plate 5211, the plate surface of the lower light-transmitting plate 5212 is also perpendicular to the optical axis of the lens unit 510, and the parallel light exits the anti-shake unit 520 in a direction perpendicular to the upper light-transmitting plate 5211. Referring to fig. 8 (b), when the anti-shake assembly 520 is in an anti-shake state, the driving structure 523 drives the lower transparent plate 5212 to rotate at a certain angle, the lower transparent plate 5212 is inclined to the upper transparent plate 5211, and the parallel light is deflected at a certain angle after passing through the lower transparent plate 5212 and is emitted obliquely in a direction inclined to the plate surface of the upper transparent plate 5211.
When the upper light-transmitting plate 5211 is fixed, the ambient light passes through the upper light-transmitting plate 5211 and the light-transmitting liquid 522 vertically as parallel light, and the deflection angle of the light-emitting direction of the anti-shake assembly 520 depends only on the inclination angle of the lower light-transmitting plate 5212. Therefore, according to the shake amount of the electronic device, the deflection angle of the lower light transmitting plate 5212 is easier to match and design, the movement amount of the anti-shake assembly 520 can be controlled more accurately, and the anti-shake precision of the anti-shake assembly 520 is improved.
In addition, the driving structure 523 only needs to drive the lower light-transmitting plate 5212 to rotate, so that the setting mode of the driving structure 523 is simpler, the anti-shake assembly 520 is easier to control, and the reliability is higher. In addition, since the lower light-transmitting plate 5212 is adjacent to the lens assembly 510, the lower light-transmitting plate 5212 is shielded between the upper light-transmitting plate 5211 and the lens assembly 510, and the movement of the lower light-transmitting plate 5212 is not observed from the appearance of the anti-shake assembly 520. Thus, the camera module 500 has a more compact appearance and better stability. The space occupied by the camera module 500 is certain, which is beneficial to layout design of other components in the electronic equipment.
Of course, in other examples, the driving structure 523 may also drive the upper transparent plate 5211 to rotate, the lower transparent plate 5212 is fixed, and the lower transparent plate 5212 is always kept perpendicular to the optical axis of the lens assembly 510. By rotating the upper light transmitting plate 5211 relative to the lower light transmitting plate 5212, the shape of the light transmitting plate assembly 521 is changed such that the longitudinal section of the light transmitting plate assembly 521 is wedge-shaped. At this time, when the anti-shake assembly 520 is in an anti-shake state, the driving structure 523 drives the upper transparent plate 5211 to rotate at a certain angle, and the upper transparent plate 5211 is inclined to the lower transparent plate 5212. The parallel light is deflected by a certain angle when passing through the upper transparent plate 5211, and then the light propagates through the transparent liquid 522 and the lower transparent plate 5212 along a straight line in a direction oblique to the optical axis of the lens assembly 510, and is deflected by a certain angle when exiting from the lower transparent plate 5212.
Therefore, in order to compensate for the angular deflection amount generated by the shake of the camera module 500 by the deflection angle of the light emitted from the anti-shake unit 520, it is necessary to determine the propagation path of the light within the anti-shake unit 520 according to the deflection angle required when the light is emitted from the anti-shake unit 520, and thus determine the deflection angle required by the upper light-transmitting plate 5211. In this way, the matching relationship between the angle deflection amount generated by the shake of the camera module 500 and the deflection angle required by the upper transparent plate 5211 is complex, and the design difficulty of the anti-shake assembly 520 is high.
Alternatively, the driving structure 523 may also drive the upper light-transmitting plate 5211 and the lower light-transmitting plate 5212 to rotate, and the upper light-transmitting plate 5211 and the lower light-transmitting plate 5212 to rotate so as to change the shape of the light-transmitting plate 521 and make the longitudinal section of the light-transmitting plate 521 wedge-shaped. At this time, when the anti-shake assembly 520 is in the anti-shake state, the driving structure 523 drives the upper transparent plate 5211 to rotate at a certain angle and also drives the lower transparent plate 5212 to rotate at a certain angle, and both the upper transparent plate 5211 and the lower transparent plate 5212 are inclined (non-perpendicular) to the optical axis of the lens assembly 510. The parallel light vertically incident to the anti-shake unit 520 is deflected by a certain angle when passing through the upper transparent plate 5211, and is linearly transmitted through the anti-shake unit 520 in a direction inclined to the optical axis of the lens unit 510, and is deflected by a moving angle when exiting from the lower transparent plate 5212.
Therefore, in order to compensate for the angular deflection caused by the shake of the camera module 500 by the deflection angle of the light emitted from the anti-shake unit 520, it is necessary to determine the propagation path of the light within the anti-shake unit 520 based on the deflection angle required for the light emitted from the anti-shake unit 520 and the deflection angle of the lower light-transmitting plate 5212, and thus determine the deflection angle required for the upper light-transmitting plate 5211. In this way, the matching relationship between the angle deflection amount generated by the shake of the camera module 500 and the deflection angles required by the upper transparent plate 5211 and the lower transparent plate 5212 is complex, and the design difficulty of the anti-shake assembly 520 is high.
Of course, in other embodiments, the number of the light-transmitting plates 521a in the light-transmitting plate assembly 521 may be more than three, that is, the light-transmitting plate assembly 521 includes more than three light-transmitting plates 521a disposed at intervals along the optical axis of the lens assembly 510, and the light-transmitting liquid 522 is encapsulated between every two adjacent light-transmitting plates 521 a. Thus, the light propagation path in the anti-shake assembly 520 is longer, which is more beneficial to generate obvious light deflection, so that the deflection angle range of the light emitted from the anti-shake assembly 520 can be enlarged, and the application scene of the anti-shake assembly 520 is enlarged.
When the number of the light-transmitting plates 521a in the light-transmitting plate assembly 521 is more than three, the light-transmitting plate assembly 521 occupies a larger space, the anti-shake assembly 520 has a larger volume, and the camera module 500 has a larger overall volume. In addition, when the driving structure 523 needs to control rotation of more than two light-transmitting plates 5211, the matching relationship between the angle deflection amount generated by the shake of the camera module 500 and the deflection angle required by each light-transmitting plate 521a is complex, and the design difficulty of the anti-shake assembly 520 is high.
Therefore, the anti-shake assembly 520 and the camera module 500 of this embodiment will be described below by taking the light-transmitting plate assembly 521 as an example that the light-transmitting plate assembly 521 includes two light-transmitting plates 521a, i.e. an upper light-transmitting plate 5211 and a lower light-transmitting plate 5212, and the upper light-transmitting plate 5211 is fixed and the lower light-transmitting plate 5212 is driven to rotate by the driving structure 523.
Fig. 9 is a schematic structural diagram of another anti-shake assembly according to an embodiment of the disclosure. Referring to fig. 9, since the fixed focus module does not have a zoom function, when the anti-shake assembly 520 is applied to the fixed focus module, the anti-shake assembly 520 may further include a liquid lens 525. The liquid lens 525 is disposed on a side of the light-transmitting plate component 521 near the lens component 510, or the liquid lens 525 is disposed between the light-transmitting plate component 521 and the lens component 510, and the liquid lens 525 is disposed between the light-transmitting plate 521a closest to the lens component 510 in the light-transmitting plate component 521 and the lens component 510.
The liquid lens 525 uses liquid as a lens, and changes the focal length by changing the curvature of the liquid. Further, by adding the liquid lens 525 to the anti-shake unit 520, the zoom function of the fixed focus module can be achieved. In addition, by disposing the liquid lens 525 on the side of the anti-shake assembly 520 close to the lens assembly 510, the liquid lens 525 does not affect the propagation path of the light in the light-transmitting plate assembly 521, so that the deflection angle of the light emitted from the light-transmitting plate assembly 521 can be ensured, and the angle deflection amount generated by shake of the electronic device can be compensated. Furthermore, the anti-shake precision of the anti-shake component 520 can be improved, and the imaging quality of the camera module 500 can be improved.
Illustratively, the liquid lens 525 may be a variable focus optical lens that utilizes the electrowetting on medium principle, the liquid lens 525 changing the shape of the droplet by an applied voltage, thereby changing its focal length. Alternatively, the liquid lens 525 may be a liquid crystal zoom lens, in which a liquid crystal is filled between two pieces of conductive glass, the refractive index of the liquid crystal is controlled by an electric field, and a focusing function is achieved by the distribution of the refractive index, and the focal length is controlled.
Fig. 9 (a) shows a structure in which the anti-shake assembly 520 is in a normal state. Referring to fig. 9 (a), when the anti-shake assembly 520 is in a normal state, the light-transmitting plates 521a of the light-transmitting plate assembly 521 are parallel to each other, and the plate surfaces of the light-transmitting plates 521a are perpendicular to the optical axis of the lens assembly 510. At this time, as indicated by a dotted arrow in the figure, the ambient light passes through the light-transmitting plate member 521 in a direction perpendicular to the light-transmitting plate member 521, and is incident on the liquid lens 525 as parallel light. The light emitted from the liquid lens 525 is converged toward the optical axis of the lens assembly 510 by the condensing action of the liquid lens 525.
Fig. 9 (b) shows a structure in which the anti-shake assembly 520 is in an anti-shake state. Referring to fig. 9 (b), when the anti-shake assembly 520 is in an anti-shake state, the driving structure 523 drives the lower light-transmitting plate 5212 to rotate, and the rotated lower light-transmitting plate 5212 is in an inclined state. The rotated lower transparent plate 5212 and the upper transparent plate 5211 have an included angle therebetween, and the plate surface of the rotated lower transparent plate 5212 is not perpendicular to the optical axis of the lens assembly 510. At this time, as shown by the dotted arrow, the parallel light vertically incident on the light-transmitting plate member 521 is emitted from the lower light-transmitting plate 5212, and the propagation path of the light is changed, and the light is deflected by a certain angle. The deflected light enters the liquid lens 525, and the light emitted from the liquid lens 525 is converged in the deflecting direction by the condensing action of the liquid lens 525.
Fig. 10 is a schematic structural diagram of a second camera module according to an embodiment of the present application. Referring to fig. 10, as another embodiment, the camera module 500 may be an Auto Focus (AF) module, in other words, the anti-shake component 520 may be applied to the auto focus module. At this time, the lens assembly 510 of the camera module 500 may include a lens 512 and a driving device 513, and the driving device 513 is used to drive the lens 512 to move.
The driving device 513 may drive the lens 512 to move along its own optical axis, so as to implement the zoom function of the camera module 500. On this basis, the driving device 513 may further drive the lens 512 to move along the plane direction in which the lens is located, or the driving device 513 may drive the lens 512 to perform an angular deflection motion around its own optical axis, so as to implement the anti-shake function of the camera module 500.
When the driving device 513 can realize the anti-shake function of the camera module 500, under the dual actions of the driving device 513 and the anti-shake component 520, the anti-shake precision of the camera module 500 can be improved, and the imaging quality of the camera module 500 can be improved. Furthermore, the usability of the electronic equipment is improved.
With continued reference to fig. 10, the driving apparatus 513 may include a support frame 5131 and a driving assembly 5132. The support frame 5131 is sleeved outside the lens 512, and the lens 512 can move in the support frame 5131. Alternatively, the lens 512 is movably disposed in the support frame 5131. The driving assembly 5132 is disposed in the supporting frame 5131, and the driving assembly 5132 drives the lens 512 to move. For example, the driving component 5132 drives the lens 512 to move along its own optical axis, or the driving component 5132 drives the lens 512 to move along the plane direction in which it is located, or the driving component 5132 drives the lens 512 to perform angular deflection around its own optical axis.
Illustratively, the driving assembly 5132 may include a driving coil 51321 and a plurality of magnetic elements 51322. The driving coil 51321 may be mounted on the lens 512, for example, the driving coil 51321 is adhered to an outer sidewall of the lens 512. Each magnetic member 51322 can be mounted on the support frame 5131, for example, each magnetic member 51322 can be uniformly spaced apart and mounted on the inner sidewall of the support frame 5131. The lens 512 is driven to move by a magnetic force generated between the driving coil 51321 and each magnetic member 51322.
As an example, the driving coil 51321 may be a ring member, and the driving coil 51321 is sleeved on the outer sidewall of the lens 512. The magnetic force generated between the driving coil 51321 and each magnetic element 51322 is the same, and the lens 512 is in a state of being in stress balance. At this time, by changing the magnetic force between the driving coil 51321 and each magnetic member 51322, the lens 512 can be driven to move in the direction of its own optical axis, so as to realize the zoom function of the camera module 500.
As another example, the number of driving coils 51321 may be plural, and each driving coil 51321 corresponds to each magnetic member 51322. By controlling the direction and magnitude of the current in each driving coil 51321, the magnetic force generated between different driving coils 51321 and the corresponding magnetic members 51322 can be different. At this time, when the magnetic force generated between each driving coil 51321 and the corresponding magnetic member 51322 is the same, the lens 512 may be driven to move along the optical axis direction thereof, so as to implement the zoom function of the camera module 500. When the magnetic forces between the different driving coils 51321 and the corresponding magnetic members 51322 are different, the lens 512 can be driven to perform angular deflection around its own optical axis, so as to realize the anti-shake function of the camera module 500.
With continued reference to fig. 10, when the camera module 500 is an auto-focus module, the camera module 500 may also include a filter assembly 540 and an image sensor assembly 530, and the filter assembly 540 and the image sensor assembly 530 may be sequentially connected to the light-emitting side of the lens assembly 510, which is not described herein.
Since the lens 512 moves, the filter assembly 540 may be connected to the driving device 513, and the filter assembly 540 may be connected to the light emitting side of the support frame 5131, for example, the bracket 542 of the filter assembly 540 is adhered to the end surface of the light emitting side of the support frame 5131. The anti-shake assembly 520 may be connected to the lens 512, for example, the anti-shake assembly 520 is connected to an outer sidewall of the lens 512, and the anti-shake assembly 520 may move synchronously with the lens 512. The light incident side of the lens 512 generally extends out of the supporting frame 5131, and the anti-shake assembly 520 is connected to the lens 512, so that the overall length of the anti-shake assembly 520 and the lens assembly 510 is reduced, and the anti-shake precision and the focusing precision are improved.
Fig. 11 is a schematic structural diagram of a third camera module provided in an embodiment of the present application. Fig. 12 is a schematic structural diagram of a fourth camera module according to an embodiment of the present application. Fig. 13 is a schematic structural diagram of a fifth camera module according to an embodiment of the present application. Fig. 14 is a schematic structural diagram of a sixth camera module according to an embodiment of the present application.
Referring to any one of fig. 11 to 14, as a third embodiment, the camera module 500 may be a periscope module, in other words, the anti-shake assembly 520 may be applied to the periscope module. The periscope type module can enable the optical axis of the lens component 510 of the camera module 500 to extend along the plane direction of the electronic equipment by adding the light path turning component, so that the size of the camera module 500 in the thickness direction of the electronic equipment is reduced while the light path length of the camera module 500 is increased. Therefore, the periscope type module has the characteristic of high imaging quality, and is beneficial to the light and thin electronic equipment.
Specifically, when the camera module 500 is a periscope type module, the camera module 500 may further include a prism assembly 550, where the prism assembly 550 is disposed on the light incident side of the lens assembly 510. The prism assembly 550 may include a support 551 and a prism 552, the support 551 may be fixed in an electronic device, and the prism 552 is mounted on the support 551. The prism 552 may include a light incident surface 5521, a reflective surface 5522 and a light emergent surface 5523, where the light incident surface 5521 and the light emergent surface 5523 may be perpendicular to each other, and an included angle between the reflective surface 5522 and the light incident surface 5521 and an included angle between the reflective surface 5522 and the light emergent surface 5523 may be 45 °. Also, the light exit surface 5523 of the prism 552 may be perpendicular to the optical axis of the lens assembly 510.
Ambient light is incident perpendicularly on the light-incident surface 5521 of the prism 552, passes through the reflecting surface 5522 of the prism 552, and is then emitted perpendicularly from the light-emitting surface 5523 of the prism 552. The light emitted from the prism 552 is vertically incident into the lens assembly 510 in a direction parallel to the optical axis of the lens assembly 510.
Referring to any one of fig. 11 to 14, since the prism assembly 550 does not have a converging effect on the propagation of light, the ambient light is parallel when entering the prism 552, and the light emitted from the prism 552 is still parallel. Thus, the anti-shake unit 520 may be disposed on the light incident side (see fig. 11 or 13) of the prism unit 550, and in this case, the anti-shake unit 520 may be mounted on the prism 552. The anti-shake assembly 520 may also be disposed on the light emitting side of the prism assembly 550 (as shown in fig. 12 or 14), that is, the anti-shake assembly 520 may be located between the prism assembly 550 and the lens assembly 510. At this time, the anti-shake assembly 520 may be mounted on the lens assembly 510.
Referring to fig. 11 and 12, in some examples, the periscope type module may be a fixed focus module, in other words, the periscope type module may be mounted with a fixed focus lens 512. At this time, the lens assembly 510 of the camera module 500 may include a lens barrel 511 and a plurality of lenses, each lens is encapsulated in the lens barrel 511, and each lens is sequentially disposed along an axial direction of the lens barrel 511, which is not described herein. Referring to fig. 11, the anti-shake assembly 520 is shown on the light incident side of the prism assembly 550, and the anti-shake assembly 520 may be mounted on the prism 552. Referring to fig. 12, the anti-shake assembly 520 is shown to be positioned at the light emitting side of the prism assembly 550, and at this time, the anti-shake assembly 520 may be mounted on the barrel 511 of the lens assembly 510.
Referring to fig. 13 and 14, in other examples, the periscope type module may be an autofocus module, in other words, the periscope type module may mount an autofocus lens 512. At this time, the lens assembly 510 of the camera module 500 may include a lens 512 and a driving device 513, where the lens 512 is movably mounted on the driving device 513, and the driving device 513 drives the lens 512 to move, which is not described herein. Referring to fig. 13, the anti-shake assembly 520 is shown on the light incident side of the prism assembly 550, where the anti-shake assembly 520 may be mounted on the prism 552. Referring to fig. 14, the anti-shake assembly 520 is shown to be positioned at the light emitting side of the prism assembly 550, and the anti-shake assembly 520 may be mounted on the driving device 513 of the lens assembly 510.
It should be noted that, a driving chip is generally further disposed in the electronic device, and the driving chip is electrically connected to the driving structure 523 in the anti-shake assembly 520. The driving chip may send a driving signal to the driving structure 523 according to the angular deflection amount to be compensated by the anti-shake assembly 520, and the driving structure 523 controls the light-transmitting plate assembly 521 to move according to the received driving signal. The driving structure 523 drives at least one light-transmitting plate 521a of the light-transmitting plate 521 to rotate, so that the light emitted from the anti-shake assembly 520 is deflected by a certain angle, the propagation path of the light incident on the lens assembly 510 is changed, and the angular deflection generated by the shake of the electronic device is compensated.
The driving chip may be disposed in the camera module 500, for example, the driving chip is disposed in the driving structure 523 or the fixing seat 524 of the anti-shake assembly 520. The driving chip is connected with the driving module in the driving structure 523 through a flexible circuit board or a wire, so that the driving chip controls the driving module to work, and then the light-transmitting plate 521a is driven to rotate through the driving module.
The driving chip may also be disposed outside the camera module 500, for example, the driving chip is mounted on a motherboard of the electronic device. The driving chip is connected with the driving module in the driving structure 523 through a flexible circuit board or a wire, or the driving chip is connected with the driving module in a wireless communication manner, so that the driving chip controls the driving module to work, and then the light-transmitting plate 521a is driven to rotate through the driving module.
In addition, an inertial sensor and an anti-shake chip are generally further disposed in the electronic device, and the anti-shake chip is electrically connected to the inertial sensor. The inertial sensor is used for acquiring shake data of the electronic device, and the anti-shake chip is used for acquiring the shake data and calculating shake compensation data required by the camera module 500 according to the shake data, in other words, calculating the angle deflection required by the shake prevention component 520. The anti-shake chip sends shake compensation data to the driving chip, and the driving chip controls the driving structure 523 to move according to the shake compensation data acquired by the driving chip, and the driving structure 523 drives the light-transmitting plate component 521 to move.
The anti-shake chip may be mounted in the camera module 500, for example, in the driving structure 523 or the fixing seat 524 of the anti-shake component 520. Alternatively, the anti-shake chip may be mounted outside the camera module 500, for example, mounted on a motherboard of the electronic device. The anti-shake chip is connected with the inertial sensor in a wired or wireless communication mode, and is connected with the driving chip in a wired or wireless communication mode.
The inertial sensor may include at least one of a gyro sensor and an acceleration sensor. The gyroscope sensor is used for collecting angular velocity data, wherein the angular velocity data refers to the rotating angle and the rotating direction of the electronic equipment in unit time. When the angular velocity data is larger, the larger the angle indicating the rotation of the electronic device is, the more the electronic device is dithered. The acceleration sensor is used for collecting acceleration data, and the acceleration data refers to physical quantity of the electronic equipment, wherein the physical quantity is changed in speed in unit time. When the acceleration data is larger, the faster the speed of the electronic device changes in unit time, the more the electronic device shakes.
Fig. 15 is a flowchart illustrating steps of an anti-shake method for a camera module according to an embodiment of the present application. Referring to fig. 15, based on the camera module 500, the present embodiment also provides an anti-shake method (hereinafter referred to as an anti-shake method) of the camera module, which is applied to the camera module 500, specifically, the anti-shake method is applied to an electronic device on which the camera module 500 is mounted.
Specifically, the anti-shake method comprises the following steps:
s100, the driving chip generates a driving signal according to the acquired jitter compensation data.
When the electronic device shakes, a driving chip in the electronic device can acquire a shake compensation signal, and the shake compensation signal is used for determining a deflection angle required to be compensated by a shake component in the camera module 500, or the shake compensation signal corresponds to a target deflection angle.
The driving chip generates a driving signal according to the obtained shake compensation data, and the driving signal can control the rotation angle of the light-transmitting plate 521a in the light-transmitting plate component 521, so that the deflection angle of the light emitted by the anti-shake component 520 is the target deflection angle, and the compensation of the anti-shake component 520 on the shake of the electronic equipment is satisfied.
The driving chip obtains jitter compensation data, which specifically includes:
(1) The anti-shake chip acquires shake data acquired by the inertial sensor. Taking the example that the inertial sensor includes at least one of the aforementioned gyro sensor and acceleration sensor, the shake data may include at least one of angular velocity data acquired by the gyro sensor and acceleration data acquired by the acceleration sensor.
(2) The anti-shake chip calculates shake compensation data of the camera module 500 according to the shake data. After the anti-shake chip acquires at least one of the angular velocity data acquired by the gyro sensor and the acceleration data acquired by the acceleration sensor, shake compensation data of the camera module 500 is calculated.
For example, when the inertial sensor includes only the gyro sensor, the anti-shake chip is configured to process the obtained angular velocity data to obtain a first shake angle, and convert the first shake angle into shake compensation data. When the inertial sensor only comprises an acceleration sensor, the anti-shake chip is used for processing the obtained acceleration data to obtain a second shake angle, and converting the second shake angle into shake compensation data. When the inertial sensor comprises a gyroscope sensor and an acceleration sensor, the anti-shake chip is used for processing the obtained angular velocity data to obtain a first shake angle, processing the obtained acceleration data to obtain a second shake angle, fusing the first shake angle and the second shake angle to obtain a target shake angle, and finally converting the target shake angle into shake compensation data.
(3) The anti-shake chip transmits shake compensation data to the driving chip.
S200, the driving structure drives at least one of the light-transmitting plates to rotate according to the driving signal so as to change the propagation path of the light incident to the lens assembly.
After the driving structure 523 receives the driving signal sent by the driving chip, at least one of the light-transmitting plates 521a is driven to rotate according to the driving signal, for example, as shown in fig. 8 or 9, and the driving structure 523 drives the lower light-transmitting plate 5212 to rotate by a certain angle according to the driving signal. Further, the light emitted from the anti-shake component 520 is deflected by a certain angle, so as to change the propagation path of the light incident to the lens component 510, and compensate the angle deflection generated by the shake of the electronic device.
In the description of the embodiments of the present application, it should be noted that, unless explicitly specified and limited otherwise, the terms "mounted," "connected," and "connected" are to be construed broadly, and may be, for example, fixedly connected, indirectly connected through an intermediary, or may be in communication with each other between two elements or in an interaction relationship between two elements. The specific meaning of the above terms in the embodiments of the present application will be understood by those of ordinary skill in the art according to the specific circumstances.
The terms first, second, third, fourth and the like in the description and in the claims of embodiments of the application and in the above-described figures, if any, are used for distinguishing between similar objects and not necessarily for describing a particular sequential or chronological order.

Claims (22)

1. An anti-shake assembly installed on an incident side of a lens assembly of a camera module, the anti-shake assembly comprising:
the light-transmitting plate component covers the light incident surface of the lens component; the light-transmitting plate assembly comprises at least two light-transmitting plates which are arranged at intervals along the optical axis of the lens assembly;
a light-transmitting liquid encapsulated between adjacent light-transmitting plates;
a driving structure for being mounted to the lens assembly and connected with the light-transmitting plate assembly; the driving structure drives at least one of the light-transmitting plates to rotate so as to enable the longitudinal section of the light-transmitting plate component to be wedge-shaped, and therefore the propagation path of light rays incident to the lens component is changed.
2. The anti-shake assembly of claim 1, wherein the drive structure drives at least one of the light-transmissive plates to rotate about an optical axis of the lens assembly.
3. The anti-shake assembly of claim 1, wherein the at least two light-transmissive plates include an upper light-transmissive plate and a lower light-transmissive plate, the upper light-transmissive plate being located on a side of the lower light-transmissive plate facing away from the lens assembly;
The light-transmitting liquid is encapsulated between the upper light-transmitting plate and the lower light-transmitting plate, and the driving structure drives at least one of the upper light-transmitting plate and the lower light-transmitting plate to rotate.
4. The anti-shake assembly of claim 3, wherein the upper light-transmitting plate is fixed and the drive structure drives the lower light-transmitting plate to rotate.
5. The anti-shake assembly of any of claims 1-4, wherein the light-transmissive liquid fills the void between adjacent light-transmissive panels.
6. The anti-shake assembly of any of claims 1-4, wherein the drive structure is attached to a periphery of the light-transmissive plate assembly.
7. The anti-shake assembly of any of claims 1-4, further comprising:
the fixed seat is connected with the lens component; the driving structure is connected with the fixing seat.
8. A camera module comprising a lens assembly and the anti-shake assembly of any one of claims 1-7, the anti-shake assembly being disposed on an incident side of the lens assembly.
9. The camera module of claim 8, wherein the lens assembly comprises a barrel and a plurality of lenses, each of the lenses is enclosed within the barrel, and each of the lenses is disposed in sequence along an axial direction of the barrel;
Wherein, the anti-shake assembly is connected to the lens barrel.
10. The camera module of claim 9, wherein the anti-shake assembly further comprises a liquid lens disposed between the lens assembly and the light-transmissive plate assembly of the anti-shake assembly.
11. The camera module of claim 8, wherein the lens assembly comprises a lens and a driving device, the lens being movably mounted to the driving device, the driving device driving the lens to move;
wherein, anti-shake subassembly is connected in drive arrangement.
12. The camera module of claim 8, further comprising:
the prism assembly is arranged on the light incident side of the lens assembly;
the anti-shake assembly is arranged on the light incident side of the prism assembly, or is arranged between the prism assembly and the lens assembly.
13. The camera module of claim 12, wherein the lens assembly comprises a barrel and a plurality of lenses, each of the lenses is enclosed within the barrel, and each of the lenses is disposed in sequence along an axial direction of the barrel.
14. The camera module of claim 12, wherein the lens assembly includes a lens and a driving device, the lens being movably mounted to the driving device, the driving device driving the lens to move.
15. The camera module of any of claims 8-14, further comprising:
and the driving chip is electrically connected with the driving structure and controls the driving structure to move.
16. The camera module of claim 15, wherein the driver chip is disposed within the driver structure or mount.
17. The camera module of any of claims 8-14, further comprising:
and the image sensor assembly is arranged on the light emitting side of the lens assembly.
18. The camera module of claim 17, further comprising:
and the optical filtering assembly is arranged between the image sensor assembly and the lens assembly.
19. An anti-shake method for a camera module, applied to any one of claims 8 to 18, characterized in that the anti-shake method comprises:
the driving chip generates a driving signal according to the acquired jitter compensation data;
The driving structure drives at least one of the light-transmitting plates to rotate according to the driving signal so as to change the propagation path of the light incident to the lens assembly.
20. The camera module anti-shake method according to claim 19, wherein the driving chip obtaining the shake compensation data includes:
the anti-shake chip acquires shake data acquired by the inertial sensor;
the anti-shake chip calculates shake compensation data of the camera module according to the shake data;
the anti-shake chip sends the shake compensation data to the driving chip.
21. The camera module anti-shake method according to claim 20, wherein the inertial sensor includes at least one of a gyro sensor and an acceleration sensor, and the shake data includes at least one of angular velocity data collected by the gyro sensor and acceleration data collected by the acceleration sensor;
the anti-shake chip calculates shake compensation data of the camera module according to the shake data, and the anti-shake chip comprises:
the anti-shake chip processes the angular velocity data and/or the acceleration data to obtain a target deflection angle;
The anti-shake chip converts the target deflection angle into shake compensation data.
22. An electronic device comprising a housing assembly and the camera module of any one of claims 8-18, the camera module being mounted to the housing assembly.
CN202410015061.9A 2024-01-05 2024-01-05 Anti-shake assembly, camera module, anti-shake method of camera module and electronic equipment Pending CN117528218A (en)

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CN202410015061.9A CN117528218A (en) 2024-01-05 2024-01-05 Anti-shake assembly, camera module, anti-shake method of camera module and electronic equipment

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Citations (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN210246879U (en) * 2019-08-09 2020-04-03 南昌欧菲光电技术有限公司 Camera module and electronic equipment
CN111901512A (en) * 2020-08-17 2020-11-06 精拓丽音科技(北京)有限公司 Lens
CN215300747U (en) * 2021-08-02 2021-12-24 维沃移动通信有限公司 Camera structure and electronic equipment
CN216291127U (en) * 2021-09-30 2022-04-12 江西晶浩光学有限公司 Liquid lens, camera module and electronic equipment
CN115903102A (en) * 2021-09-30 2023-04-04 江西晶浩光学有限公司 Liquid lens subassembly, module and electronic equipment make a video recording
CN116953875A (en) * 2022-04-13 2023-10-27 宁波舜宇光电信息有限公司 Variable focal length lens device and camera module

Patent Citations (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN210246879U (en) * 2019-08-09 2020-04-03 南昌欧菲光电技术有限公司 Camera module and electronic equipment
CN111901512A (en) * 2020-08-17 2020-11-06 精拓丽音科技(北京)有限公司 Lens
CN215300747U (en) * 2021-08-02 2021-12-24 维沃移动通信有限公司 Camera structure and electronic equipment
CN216291127U (en) * 2021-09-30 2022-04-12 江西晶浩光学有限公司 Liquid lens, camera module and electronic equipment
CN115903102A (en) * 2021-09-30 2023-04-04 江西晶浩光学有限公司 Liquid lens subassembly, module and electronic equipment make a video recording
CN116953875A (en) * 2022-04-13 2023-10-27 宁波舜宇光电信息有限公司 Variable focal length lens device and camera module

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