CN116614698A - Camera module and electronic equipment - Google Patents

Camera module and electronic equipment Download PDF

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Publication number
CN116614698A
CN116614698A CN202310775472.3A CN202310775472A CN116614698A CN 116614698 A CN116614698 A CN 116614698A CN 202310775472 A CN202310775472 A CN 202310775472A CN 116614698 A CN116614698 A CN 116614698A
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CN
China
Prior art keywords
signal
lens
driving device
camera module
reflecting
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
CN202310775472.3A
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Chinese (zh)
Inventor
丁文超
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.)
Vivo Mobile Communication Co Ltd
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Vivo Mobile Communication 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 Vivo Mobile Communication Co Ltd filed Critical Vivo Mobile Communication Co Ltd
Priority to CN202310775472.3A priority Critical patent/CN116614698A/en
Publication of CN116614698A publication Critical patent/CN116614698A/en
Pending legal-status Critical Current

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    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04N—PICTORIAL COMMUNICATION, e.g. TELEVISION
    • H04N23/00—Cameras or camera modules comprising electronic image sensors; Control thereof
    • H04N23/50—Constructional details
    • H04N23/55—Optical parts specially adapted for electronic image sensors; Mounting thereof
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04N—PICTORIAL COMMUNICATION, e.g. TELEVISION
    • H04N23/00—Cameras or camera modules comprising electronic image sensors; Control thereof
    • H04N23/50—Constructional details
    • H04N23/54—Mounting of pick-up tubes, electronic image sensors, deviation or focusing coils
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04N—PICTORIAL COMMUNICATION, e.g. TELEVISION
    • H04N23/00—Cameras or camera modules comprising electronic image sensors; Control thereof
    • H04N23/57—Mechanical or electrical details of cameras or camera modules specially adapted for being embedded in other devices
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04N—PICTORIAL COMMUNICATION, e.g. TELEVISION
    • H04N23/00—Cameras or camera modules comprising electronic image sensors; Control thereof
    • H04N23/60—Control of cameras or camera modules
    • H04N23/68—Control of cameras or camera modules for stable pick-up of the scene, e.g. compensating for camera body vibrations
    • H04N23/681—Motion detection
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04N—PICTORIAL COMMUNICATION, e.g. TELEVISION
    • H04N23/00—Cameras or camera modules comprising electronic image sensors; Control thereof
    • H04N23/60—Control of cameras or camera modules
    • H04N23/68—Control of cameras or camera modules for stable pick-up of the scene, e.g. compensating for camera body vibrations
    • H04N23/682—Vibration or motion blur correction
    • H04N23/685—Vibration or motion blur correction performed by mechanical compensation
    • H04N23/687—Vibration or motion blur correction performed by mechanical compensation by shifting the lens or sensor position

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  • Engineering & Computer Science (AREA)
  • Multimedia (AREA)
  • Signal Processing (AREA)
  • Adjustment Of Camera Lenses (AREA)

Abstract

The application discloses a camera module and electronic equipment. The camera module includes: the device comprises a lens, a photosensitive chip, a driving device, a positioning device and a control device; the lens is arranged opposite to the photosensitive chip and is arranged in the driving device, and the driving device is used for driving the lens to move towards the direction approaching or far away from the photosensitive chip; the positioning device comprises a signal emitter, a signal receiver and a plurality of signal reflecting components, the plurality of signal reflecting components are sequentially arranged at intervals along the circumferential edge of the lens, the signal emitter and the signal receiver are arranged opposite to the signal reflecting components, and the control device is electrically connected with the driving device, the signal emitter and the signal receiver; the signal transmitter is used for transmitting the optical signal towards the signal reflection assembly; the signal receiver is used for receiving the optical signals reflected by the plurality of signal reflection assemblies at different positions; the control device is used for generating jitter compensation quantity according to the reflected optical signal; the driving device is used for conducting jitter compensation in the process of driving the lens to move according to the jitter compensation quantity.

Description

Camera module and electronic equipment
Technical Field
The application belongs to the technical field of electronic products, and particularly relates to a camera module and electronic equipment.
Background
The anti-shake function of the existing camera is usually realized by a Hall chip or a tunnel magneto-resistance technology chip, and the devices usually position the lens by detecting the change of a magnetic field.
In actual use, the devices are easily influenced by external magnetic components and magnetic permeability parts when detecting a magnetic field, so that the anti-shake positioning precision is poor, the imaging anti-shake effect of a camera is poor, and even the anti-shake failure is caused; in addition, the Hall chip or the tunnel magnetic resistance technology chip and the magnet are required to occupy a certain space position, so that the volume and the power consumption of the camera are affected.
Disclosure of Invention
The application aims to provide a camera module and electronic equipment, which at least solve the problems that the camera anti-shake device of the existing electronic equipment is easily influenced by external magnetic components and magnetic permeability parts, so that the positioning accuracy of anti-shake is poor and even the anti-shake is invalid.
In order to solve the technical problems, the application is realized as follows:
in a first aspect, an embodiment of the present application provides an image capturing module, including:
the device comprises a lens, a photosensitive chip, a driving device, a positioning device and a control device;
the lens is arranged opposite to the photosensitive chip, and is arranged in the driving device, and the driving device is used for driving the lens to move towards a direction approaching or far away from the photosensitive chip;
the positioning device comprises a signal emitter, a signal receiver and a plurality of signal reflecting components, the signal reflecting components are sequentially arranged at intervals along the circumferential edge of the lens, the signal emitter and the signal receiver are arranged opposite to the signal reflecting components, and the control device is electrically connected with the driving device, the signal emitter and the signal receiver;
the signal transmitter is used for transmitting an optical signal towards the signal reflection assembly; the signal receiver is used for receiving the optical signals reflected by the plurality of signal reflection assemblies at different positions; the control device is used for generating jitter compensation quantity according to the reflected optical signal; the driving device is used for conducting jitter compensation in the process of driving the lens to move according to the jitter compensation quantity.
In a second aspect, an embodiment of the present application further provides an electronic device, including the camera module as described above.
The camera module provided by the application refracts and focuses the light reflected by the shot object on the photosensitive chip through the lens so that the photosensitive chip performs photosensitive imaging to complete shooting; meanwhile, in the focusing process, the driving device is arranged to drive the lens to be close to or far away from the photosensitive chip so as to focus. In addition, a plurality of signal reflection assemblies are arranged on the lens, a signal emitter and a signal receiver are arranged relative to the plurality of signal reflection assemblies, light signals are emitted to the signal reflection assemblies through the plurality of signal emitters, the light signals reflected by the signal reflection assemblies are received by the signal receiver, distances between different signal reflection assemblies and the signal receiver are calculated based on time difference between light signal emission and light signal receiving, so that a control device calculates displacement amounts in different directions of the lens based on the change of the distances, and jitter compensation amounts are generated according to the displacement amounts in different directions, so that a driving device is controlled to carry out jitter compensation on the lens, the whole anti-jitter process is independent of monitoring of magnetic fields, and the problem that the camera anti-jitter device of the current electronic equipment is easily influenced by external magnetic components and magnetic permeability parts, and leads to poor positioning accuracy of anti-jitter and even anti-jitter failure is effectively solved.
Additional aspects and advantages of the application will be set forth in part in the description which follows, and in part will be obvious from the description, or may be learned by practice of the application.
Drawings
The foregoing and/or additional aspects and advantages of the application will become apparent and may be better understood from the following description of embodiments taken in conjunction with the accompanying drawings in which:
FIG. 1 is an exploded view of a camera module according to an embodiment of the present application;
FIG. 2 is a cross-sectional view of an image capturing module according to an embodiment of the present application;
FIG. 3 is a schematic diagram of a lens and signal reflection assembly according to an embodiment of the present application;
FIG. 4 is a schematic diagram of an optical signal path of a positioning device according to an embodiment of the present application;
reference numerals:
1. a camera module;
11. a lens;
12. a photosensitive chip;
13. a driving device; 131. mounting through holes;
14. a positioning device; 141. a signal transmitter; 142. a signal receiver; 143. a signal reflection assembly; 1431. positioning columns; 1432. a reflecting mirror; 1433. a first signal reflecting component; 1434. a second signal reflection group; 1435. a third signal reflecting component; 1436. a fourth signal reflecting component;
15. a control device; 151. a circuit board; 152. a connector;
16. a transparent shield.
Detailed Description
Reference will now be made in detail to embodiments of the present application, examples of which are illustrated in the accompanying drawings, wherein like or similar reference numerals refer to like or similar elements throughout or elements having like or similar functionality. The embodiments described below by referring to the drawings are illustrative only and are not to be construed as limiting the application. All other embodiments, which can be made by those skilled in the art based on the embodiments of the application without making any inventive effort, are intended to be within the scope of the application.
The features of the application "first", "second" and the like in the description and in the claims may be used for the explicit or implicit inclusion of one or more such features. In the description of the present application, unless otherwise indicated, the meaning of "a plurality" is two or more.
In the description 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 either fixedly connected, detachably connected, or integrally connected, for example; can be mechanically or electrically connected; can be directly connected or indirectly connected through an intermediate medium, and can be communication between two elements. The specific meaning of the above terms in the present application will be understood in specific cases by those of ordinary skill in the art.
The following describes, with reference to fig. 1 to 4, an imaging module according to an embodiment of the present application, where the imaging module is used in a smart phone, a tablet computer, a vehicle-mounted camera, or other electronic devices with imaging functions. Of course, the camera module may be used in other devices, which is not limited in the embodiment of the present application.
As shown in fig. 1 and 2, an image capturing module 1 provided by the present application includes: a lens 11, a photosensitive chip 12, a driving device 13, a positioning device 14 and a control device 15; the lens 11 is arranged opposite to the photosensitive chip 12, the lens 11 is arranged in the driving device 13, and the driving device 13 is used for driving the lens 11 to move towards or away from the photosensitive chip 12; the positioning device 14 comprises a signal emitter 141, a signal receiver 142 and a plurality of signal reflecting components 143, the plurality of signal reflecting components 143 are sequentially arranged at intervals along the circumferential edge of the lens 11, the signal emitter 141 and the signal receiver 142 are arranged opposite to the signal reflecting components 143, and the control device 15 is electrically connected with the driving device 13, the signal emitter 141 and the signal receiver 142; the signal transmitter 141 is configured to transmit an optical signal toward the signal reflection assembly 143; the signal receiver 142 is configured to receive optical signals reflected by the plurality of signal reflection components 143 at different positions; the control device 15 is used for generating jitter compensation amount according to the reflected optical signal; the driving device 13 is used for performing jitter compensation on the lens 11 in the process of driving the lens to move.
In the present embodiment, the lens 11 is configured to receive light reflected by a subject and focus the light on the photosensitive chip 12, so that the photosensitive chip 12 performs photosensitive imaging; during focusing, the lens 11 is driven to approach or depart from the photosensitive chip 12 by the driving device 13, so as to perform focusing. Meanwhile, by arranging the signal reflection components 143 at intervals on the circumferential edge of the lens 11, the plurality of signal reflection components 143 can move together with the lens 11, the signal transmitter 141 transmits optical signals to the plurality of signal reflection components 143, the signal reflection components 143 reflect the optical signals to the signal receivers 142, and the distances between the signal reflection components 143 and the signal receivers 142 can be calculated by recording the transmitting time and the receiving time of the single optical signals and calculating the time difference thereof. In the actual shooting process, the lens 11 may shake, when the lens 11 shakes, the distance between each signal reflection component 143 and the signal receiver 142 also changes, and the signal transmitter 141 continuously sends out light signals to continuously measure and calculate the distance between each signal reflection component 143 and the signal receiver 142, and send the distances to the control device 15, and the control device 15 calculates displacement amounts in different directions of the lens 11 based on a positioning algorithm, such as an RSSI (Received Signal Strength Indicator, received signal strength indication) three-dimensional space four-point positioning algorithm, and generates shake compensation amounts based on the displacement amounts in different directions, and uses the shake compensation amounts to control the driving device 13 to perform shake compensation on the lens 11 in the moving process of the lens 11, so as to avoid blurring and distortion of the shot picture caused by shake of the lens 11.
In the camera module 1 provided by the application, light reflected by a shot object is refracted and focused on the photosensitive chip 12 through the lens 11, so that the photosensitive chip 12 performs photosensitive imaging to complete shooting; meanwhile, in the focusing process, the lens 11 is driven to approach or depart from the photosensitive chip 12 by the driving device 13, so as to perform focusing. In addition, a plurality of signal reflection components 143 are arranged on the lens 11, a signal emitter 141 and a signal receiver 142 are arranged relative to the plurality of signal reflection components 143, light signals are emitted to the signal reflection components 143 through the plurality of signal emitters 141, the light signals reflected by the signal reflection components 143 are received by the signal receiver 142, distances between different signal reflection components 143 and the signal receiver 142 are calculated based on time differences of light signal emission and light signal reception, so that the control device 15 calculates displacement amounts in different directions of the lens 11 based on the change of the distances, and generates jitter compensation amounts according to the displacement amounts in different directions, thereby controlling the driving device 13 to perform jitter compensation on the lens 11.
Specifically, as shown in fig. 3 and 4, four signal reflection assemblies 143 are provided, and the four signal reflection assemblies 143 are respectively disposed at the peripheral edges of one side of the lens 11.
In this embodiment, four signal reflection components 143 are disposed at the peripheral edge of one side of the lens 11, the arrows in fig. 4 indicate the light path schematic direction of the signal light, each time the signal emitter 141 emits an optical signal to the signal reflection component 143, the optical signal sequentially reaches the four signal reflection components 143 from near to far according to the distance between the signal reflection components 143 and the signal emitter 141, and is emitted to the signal receiver 142 under the reflection of the four signal reflection components 143, so that the distances between the four signal reflection components 143 and the signal receiver 142 can be measured and calculated; after the optical signals are emitted for many times, the distance changes between the four signal reflection components 143 and the signal receiver 142 can be obtained, the displacement direction of the lens 11 is calculated based on the distance changes, so that the accuracy of calculation is improved, the displacement of the lens 11 in different directions can be obtained, the anti-shake compensation amount can be generated more accurately, the anti-shake effect is effectively improved, the structure is simple, and the practicability is strong.
Specifically, in some embodiments, as shown in fig. 3, the four signal reflecting components 143 include: a first signal reflecting component 1433, a second signal reflecting component 1434, a third signal reflecting component 1435, and a fourth signal reflecting component 1436; the first signal reflection component 1433 is arranged on the first side of the lens 11 to cooperate with the control device 15 to generate a shake compensation amount of the lens 11 in a first direction; the second signal reflection component 1434 is arranged on the second side of the lens 11 to cooperate with the control device 15 to generate a shake compensation amount of the lens 11 in the second direction; the third signal reflection component 1435 is arranged at the third side of the lens 11 to cooperate with the control device 15 to generate a shake compensation amount of the third direction of the lens 11; the fourth signal reflecting component 1436 is disposed on the fourth side of the lens 11 to cooperate with the control device 15 to generate a shake compensation amount in the fourth direction of the lens 11.
In the present embodiment, by providing the first signal reflection assembly 1433, the signal transmitter 141 continuously transmits an optical signal to the first signal reflection assembly 1433, the optical signal is reflected by the signal receiver 142 after passing through the first signal reflection assembly 1433, and calculates a distance between the signal receiver 142 and the first signal reflection assembly 1433 based on a time difference between a transmission time and a reception time of the optical signal; after the optical signal is emitted for multiple times, the distance change between the first signal reflecting component 1433 and the signal receiver 142 can be obtained, that is, the distance change of the lens 11 along the first direction (that is, the direction of connecting the signal receiver 142 and the first signal reflecting component 1433) can be obtained, and the jitter compensation amount of the lens 11 along the first direction is generated based on the distance change, so as to perform jitter compensation on the lens 11; it is to be readily understood that the functions of the second signal reflecting component 1434, the third signal reflecting component 1435 and the fourth signal reflecting component 1436 are similar to those of the first signal reflecting component 1433, and are not described herein again; the second direction is a direction in which the signal receiver 142 is connected to the second signal reflection component 1434; the third direction is the direction in which the signal receiver 142 is connected to the third signal reflection component 1435; the fourth direction is the direction in which the signal receiver 142 is connected to the fourth signal reflection component 1436; since the first signal reflecting component 1433, the second signal reflecting component 1434, the third signal reflecting component 1435 and the fourth signal reflecting component 1436 are positioned at different sides of the lens 11, the first direction, the second direction, the third direction and the fourth direction are different; the first signal reflection component 1433, the second signal reflection component 1434, the third signal reflection component 1435 and the fourth signal reflection component 1436 can be matched with the signal control device 15 to correspondingly generate shake compensation amounts of the lens 11 in different directions, the driving device 13 drives the lens 11 to move according to the shake compensation amounts in all directions to perform shake compensation, the anti-shake effect is better, the structure is simple, and the practicability is strong.
Further, in some embodiments, as shown in fig. 1 and 3, each signal reflecting assembly 143 includes: the lens comprises a positioning column 1431 and a reflector 1432, wherein one end of the positioning column 1431 is connected to one side of the lens 11, which is far away from the shooting direction, the other end of the positioning column 1431 is connected with the reflector 1432, and at least one reflector 1432 is not coplanar with any three other reflectors 1432.
In this embodiment, the positioning device 14 includes at least four signal reflecting components 143, and the positioning posts 1431 are disposed to connect the lens 11 and the reflecting mirrors 1432, so that the heights of the respective positioning posts 1431 can be different to ensure that at least one reflecting mirror 1432 is not coplanar with any three other reflecting mirrors 1432, and when the signal transmitter 141 transmits an optical signal to the signal reflecting components 143, the optical signal is reflected by the four reflecting mirrors 1432 and is directed to the signal receiver 142, so as to measure and calculate the distances between the signal receiver 142 and the four reflecting mirrors 1432. In an initial state before shooting, performing measurement calculation on the signal receiver 142 and the four reflectors 1432 once to obtain initial distances between the signal receiver 142 and the four reflectors 1432; in the photographing process, the signal emitter 141 continuously emits light signals to the four reflectors 1432, so that distances between the signal receiver 142 and the four reflectors 1432 are obtained through measurement and calculation, and the distances are compared with the initial distances to obtain the distance difference; meanwhile, as the four reflectors 1432 are not coplanar, the three-axis displacement data of the lens 11 can be calculated based on the distance difference and the RSSI three-dimensional space four-point positioning algorithm, and the shake compensation quantity is generated through the three-axis displacement data, so that the anti-shake compensation is carried out on the lens 11 through the driving device 13; the triaxial displacement data can reflect the shaking direction and distance of the lens 11 more accurately, is beneficial to improving the shaking prevention effect, and the whole positioning device 14 is simple in structure and good in use effect.
Alternatively, the optical signal emitted by the signal emitter 141 may be ultraviolet light or infrared light.
In some embodiments, signal emitter 141 is an infrared light emitter, signal receiver 142 is an infrared light receiver, and mirror 1432 is an infrared light mirror. By using infrared light as an optical signal, the distance between the signal emitter 141, the signal reflection component 143 and the signal receiver 142 is measured by emitting, reflecting and receiving the infrared light, the infrared light does not interfere with the photosensitive chip 12 in the measuring process, imaging of the photosensitive chip 12 is not affected, shooting quality is not affected, and the use effect is better; meanwhile, the cost of the infrared light serving as a corresponding component of the optical signal is low, and the cost of the camera module 1 is reduced.
Optionally, the infrared light reflecting mirror is a gold-plated mirror or a silver-plated mirror. The gold-plated mirror or silver-plated mirror has extremely high infrared light reflectivity, the reflectivity of which is close to 98%, while the bottom structure of the lens 11 near the infrared light reflector is usually a plastic piece, and the reflectivity of which is relatively low, usually about 80%; the intensity of the infrared light reflected by the two and reaching the signal receiver 142 is significantly different; the signal receiver 142 can identify whether the infrared light signal reflected by the mirror 1432 is received based on the received infrared light intensity, which is advantageous for more accurately calculating the distance between the signal receiver 142 and the mirror 1432.
In some embodiments, as shown in fig. 1, the camera module 1 further includes a transparent protection member 16, where the transparent protection member 16 is disposed between the photosensitive chip 12 and the lens 11.
In this embodiment, the transparent protection member 16 is disposed between the photosensitive chip 12 and the lens 11 to protect the photosensitive chip 12, and prevent dust or other impurities from contacting the photosensitive chip 12 while allowing light to pass through, thereby affecting the photosensitive imaging effect and improving the shooting imaging effect.
Alternatively, the transparent protection member 16 may be a transparent plastic sheet or a transparent glass sheet, and the transparent plastic sheet or the transparent glass sheet covers the surface of the photosensitive chip 12 to protect the photosensitive chip 12.
Alternatively, the transparent shield 16 may be a cut-off filter corresponding to the light signal according to the light signal actually used. For example, the signal emitter 141 is an infrared light emitter, the signal receiver 142 is an infrared light receiver, the reflecting mirror 1432 is an infrared light reflecting mirror, the optical signal emitted by the signal emitter 141 is infrared light, and the surface of the photosensitive chip 12 is covered with an infrared cut-off filter. When the infrared light passes between the signal emitter 141, the signal receiver 142 and the reflecting mirror 1432, the infrared cut filter can further prevent the infrared light from reaching the photosensitive chip 12 to cause image distortion, which is beneficial to improving the shooting effect. Accordingly, if the adopted optical signal is ultraviolet light, the surface of the photosensitive chip 12 may be covered with an ultraviolet cut-off filter, and the effect is similar to that of the above embodiment, and will not be described herein.
In some embodiments, as shown in fig. 1 and 2, the control device 15 includes: the control unit, the circuit board 151 and the connector 152, the driving device 13 is provided with a mounting through hole 131, and the lens 11 is mounted in the mounting through hole 131; the driving device 13 is disposed on the circuit board 151, the lens 11, the driving device 13 and the circuit board 151 form an inner cavity around the mounting through hole 131, the signal emitter 141, the signal receiver 142, the signal reflection assembly 143 and the photosensitive chip 12 are all located in the inner cavity, and the signal emitter 141, the signal receiver 142 and the photosensitive chip 12 are all connected with the control unit through the circuit board 151 and the connector 152.
In this embodiment, the circuit board 151 is used for carrying the driving device 13, the signal emitter 141, the signal receiver 142 and the photosensitive chip 12, and is electrically connected with the signal emitter 141, the signal receiver 142 and the photosensitive chip 12, and supplies power to each component of the camera module 1 through the connector 152, and meanwhile, signal transmission is performed between the control unit and the driving device 13, the signal emitter 141, the signal receiver 142 and the photosensitive chip 12. So that the control unit controls the signal transmitter 141 to transmit the optical signal, records the transmitting time of the optical signal and the corresponding receiving time of the signal receiver 142, calculates the distance between the signal receiver 142 and the signal reflecting component 143 according to the time difference between the transmitting time and the receiving time of the optical signal, calculates the displacement direction and the displacement distance of the lens 11 by measuring and calculating the distance between the signal receiver 142 and the signal reflecting component 143 a plurality of times during photographing, and then generates a jitter compensation amount based on the displacement direction and the displacement distance of the lens 11; after the shake compensation amount is generated, the control unit drives the driving device 13 to perform shake compensation on the lens 11 according to the shake compensation amount; meanwhile, the lens 11, the driving device 13 and the circuit board 151 form an inner cavity by surrounding the mounting through hole 131, and the signal emitter 141, the signal receiver 142, the signal reflecting component 143 and the photosensitive chip 12 are arranged in the inner cavity, so that the signal emitter 141, the signal receiver 142, the signal reflecting component 143 and the photosensitive chip 12 are protected, the light signal is prevented from being interfered by the external environment (such as external stray light), the positioning precision of the positioning device 14 is improved, and the anti-shake effect is improved.
Moreover, compared with the conventional anti-shake device, which requires a plurality of hall position sensors to be mounted inside the driving device 13 to position the lens 11, the signal transmitter 141 and the signal receiver 142 of the present application can be mounted on the circuit board 151, and are not required to be mounted inside the driving device 13, and no wiring is required inside the driving device 13, which is beneficial to reducing the size of the driving device 13.
In a specific embodiment, as shown in fig. 1 and 2, the lens 11 is a cylindrical lens, the driving device 13 is in a square structure, a mounting through hole 131 for adapting to the lens 11 is arranged on the square structure, the lens 11 is mounted in the mounting through hole 131, four signal reflection components 143 are arranged at the bottom of the lens 11 near the edge, the four signal reflection components 143 comprise four positioning columns 1431 and corresponding reflectors 1432, one end of each positioning column 1431 is fixedly connected to the bottom of the lens 11, one reflector 1432 is adhered to the other end of each positioning column 1431, the driving device 13 is mounted on the circuit board 151, and the signal emitter 141, the signal receiver 142 and the photosensitive chip 12 are all arranged at positions of the circuit board 151 corresponding to the mounting through hole 131; the signal emitter 141 and the signal receiver 142 are located on one side of the photo-sensing chip 12 to further reduce interference of the optical signal with the photo-sensing chip 12 when passing between the signal emitter 141, the signal receiver 142 and the signal reflecting component 143. The driving device 13, the signal transmitter 141, the signal receiver 142 and the photosensitive chip 12 are all electrically connected with a circuit board 151, one side of the circuit board 151 away from components such as the driving device 13 is electrically connected with a connector 152, and the connector 152 is electrically connected with the control unit. At the same time, the surface of the photosensitive chip 12 is covered with a glass sheet as a transparent protective member 16.
In some embodiments, the driving device 13 includes an electronic anti-shake module and an optical anti-shake module; the electronic anti-shake module is electrically connected with the signal receiver 142 and is used for performing electronic anti-shake compensation on the image obtained by the lens 11 according to the shake compensation amount to obtain an image after the electronic anti-shake compensation; the optical anti-shake module is connected to the lens 11, electrically connected to the signal receiver 142, and used for driving the lens 11 to move according to the shake compensation amount.
In this embodiment, the electronic anti-shake module processes the image of the lens 11 based on the shake compensation amount mainly through the digital circuit, so that the image is clearer; the optical anti-shake module drives the lens 11 to move mainly through a mechanical structure so as to offset shake of the lens 11, thereby effectively overcoming image blurring caused by shake of the lens 11; the electronic anti-shake mode and the optical anti-shake mode are matched with the anti-shake mode, so that image distortion blurring caused by lens shake can be better overcome, image definition is improved, and a shooting effect is better.
Specifically, the optical anti-shake module is a voice coil motor. The voice coil motor drives the elastic sheet/spring to move mainly through control current, and can adjust the position of the lens 11 on three axes so as to perform focusing or anti-shake compensation on the lens 11 under the control of the control device 15, and the voice coil motor has the characteristics of small volume, high precision and good integration, is beneficial to improving the precision of the anti-shake compensation, thereby improving the anti-shake effect and reducing the size of the whole camera module 1.
On the other hand, the application also provides electronic equipment, which comprises the camera shooting module 1 provided by any one of the embodiments. By adopting the camera module 1 provided in the above embodiment, the electronic device of the present application also has the advantages of the camera module 1 described above, and will not be described herein again.
In the description of the present specification, reference to the terms "one embodiment," "some embodiments," "illustrative embodiments," "examples," "specific examples," or "some examples," etc., means that a particular feature, structure, material, or characteristic described in connection with the embodiment or example is included in at least one embodiment or example of the application. In this specification, schematic representations of the above terms do not necessarily refer to the same embodiments or examples. Furthermore, the particular features, structures, materials, or characteristics described may be combined in any suitable manner in any one or more embodiments or examples.
While embodiments of the present application have been shown and described, it will be understood by those of ordinary skill in the art that: many changes, modifications, substitutions and variations may be made to the embodiments without departing from the spirit and principles of the application, the scope of which is defined by the claims and their equivalents.

Claims (10)

1. A camera module (1), characterized by comprising:
a lens (11), a photosensitive chip (12), a driving device (13), a positioning device (14) and a control device (15);
the lens (11) is arranged opposite to the photosensitive chip (12), the lens (11) is arranged in the driving device (13), and the driving device (13) is used for driving the lens (11) to move towards a direction approaching or separating from the photosensitive chip (12);
the positioning device (14) comprises a signal emitter (141), a signal receiver (142) and a plurality of signal reflecting components (143), the signal reflecting components (143) are sequentially arranged at intervals along the circumferential edge of the lens (11), the signal emitter (141) and the signal receiver (142) are arranged opposite to the signal reflecting components (143), and the control device (15) is electrically connected with the driving device (13), the signal emitter (141) and the signal receiver (142);
-the signal emitter (141) is adapted to emit an optical signal towards the signal reflecting assembly (143); the signal receiver (142) is configured to receive optical signals reflected by the plurality of signal reflection components (143) at different positions; -said control means (15) for generating a jitter compensation amount from the reflected light signal; the driving device (13) is used for performing shake compensation in the process of driving the lens (11) to move according to the shake compensation amount.
2. The camera module (1) according to claim 1, wherein four signal reflection assemblies (143) are provided, and the four signal reflection assemblies (143) are respectively disposed at the peripheral edges of one side of the lens (11).
3. The camera module (1) according to claim 2, wherein four of the signal reflecting assemblies (143) comprise: a first signal reflecting component (1433), a second signal reflecting component (1434), a third signal reflecting component (1435) and a fourth signal reflecting component (1436);
the first signal reflection component (1433) is arranged on the first side of the lens (11) and is matched with the control device (15) to generate the jitter compensation quantity of the first direction of the lens (11);
the second signal reflection component (1434) is arranged on the second side of the lens (11) to cooperate with the control device (15) to generate the jitter compensation quantity of the second direction of the lens (11);
the third signal reflection component (1435) is arranged on the third side of the lens (11) to cooperate with the control device (15) to generate the jitter compensation quantity of the lens (11) in the third direction;
the fourth signal reflection component (1436) is arranged on the fourth side of the lens (11) to cooperate with the control device (15) to generate the shake compensation quantity of the fourth direction of the lens (11).
4. The camera module (1) of claim 1, wherein each of the signal reflecting assemblies (143) comprises: the camera comprises a positioning column (1431) and a reflecting mirror (1432), wherein one end of the positioning column (1431) is connected to one side, deviating from the shooting direction, of the camera lens (11), the other end of the positioning column (1431) is connected with the reflecting mirror (1432), and at least one reflecting mirror (1432) is not coplanar with any three reflecting mirrors (1432).
5. The camera module (1) according to claim 4, wherein the signal transmitter (141) is an infrared light transmitter, the signal receiver (142) is an infrared light receiver, and the mirror (1432) is an infrared light mirror.
6. Camera module (1) according to claim 1, characterized in that the camera module (1) further comprises a transparent shield (16), the transparent shield (16) being arranged between the light sensitive chip (12) and the lens (11).
7. Camera module (1) according to claim 1, characterized in that the control means (15) comprise: the lens comprises a control unit, a circuit board (151) and a connector (152), wherein a mounting through hole (131) is formed in the driving device (13), and the lens (11) is mounted in the mounting through hole (131);
the driving device (13) is arranged on the circuit board (151), the lens (11), the driving device (13) and the circuit board (151) are surrounded in the mounting through hole (131) to form an inner cavity, the signal emitter (141), the signal receiver (142), the signal reflection assembly (143) and the photosensitive chip (12) are all located in the inner cavity, and the signal emitter (141), the signal receiver (142) and the photosensitive chip (12) are all connected with the control unit through the circuit board (151) and the connector (152).
8. Camera module (1) according to any of claims 1-7, characterized in that the driving means (13) comprise:
the electronic anti-shake module is electrically connected with the signal receiver (142) and is used for carrying out electronic anti-shake compensation on the image obtained by the lens (11) according to the shake compensation amount to obtain an image after the electronic anti-shake compensation;
and the optical anti-shake module is connected with the lens (11), is electrically connected with the signal receiver (142) and is used for driving the lens (11) to move according to the shake compensation amount.
9. The camera module (1) according to claim 8, wherein the optical anti-shake module is a voice coil motor.
10. Electronic device, characterized in that it comprises an imaging module (1) according to any one of claims 1 to 9.
CN202310775472.3A 2023-06-28 2023-06-28 Camera module and electronic equipment Pending CN116614698A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN202310775472.3A CN116614698A (en) 2023-06-28 2023-06-28 Camera module and electronic equipment

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CN202310775472.3A CN116614698A (en) 2023-06-28 2023-06-28 Camera module and electronic equipment

Publications (1)

Publication Number Publication Date
CN116614698A true CN116614698A (en) 2023-08-18

Family

ID=87678398

Family Applications (1)

Application Number Title Priority Date Filing Date
CN202310775472.3A Pending CN116614698A (en) 2023-06-28 2023-06-28 Camera module and electronic equipment

Country Status (1)

Country Link
CN (1) CN116614698A (en)

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