CN113014788A - Camera module and electronic equipment - Google Patents
Camera module and electronic equipment Download PDFInfo
- Publication number
- CN113014788A CN113014788A CN202110475146.1A CN202110475146A CN113014788A CN 113014788 A CN113014788 A CN 113014788A CN 202110475146 A CN202110475146 A CN 202110475146A CN 113014788 A CN113014788 A CN 113014788A
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- lens
- image sensor
- camera module
- circuit board
- carrier
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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
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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
- H04N23/57—Mechanical or electrical details of cameras or camera modules specially adapted for being embedded in other devices
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04N—PICTORIAL COMMUNICATION, e.g. TELEVISION
- H04N23/00—Cameras or camera modules comprising electronic image sensors; Control thereof
- H04N23/60—Control of cameras or camera modules
- H04N23/67—Focus control based on electronic image sensor signals
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- Engineering & Computer Science (AREA)
- Multimedia (AREA)
- Signal Processing (AREA)
- Lens Barrels (AREA)
- Studio Devices (AREA)
Abstract
The application discloses camera module and electronic equipment belongs to the technical field of making a video recording. The camera module includes: the device comprises a lens, a lens fixing component, a photosensitive component and a driving component; the lens fixing assembly comprises a shell and a substrate, the shell is arranged on the substrate and provided with a mounting hole, and the lens is mounted in the mounting hole; the lens, the shell and the substrate are enclosed to form an accommodating cavity, the photosensitive assembly is arranged in the accommodating cavity and comprises a carrier and an image sensor, and the image sensor is arranged on the carrier; the driving assembly is used for driving the carrier to move in the accommodating cavity along the optical axis direction of the lens. In this application embodiment, realize auto focus through fixed lens, the mode of moving image sensor, can reduce the drive consumption, promote the formation of image effect, reduce camera module volume and strengthen the reliability of camera module.
Description
Technical Field
The application belongs to the technical field of make a video recording, concretely relates to camera module and electronic equipment.
Background
With the increasing requirements of the market on the functions of the mobile phone camera, the automatic focusing function, which is the most common function in photographing, has become a necessary option for photographing and recording of the mobile phone. The automatic focusing function of the existing camera is mainly realized by driving a lens to move through a voice coil motor, so that the relative position between the lens and a sensor is changed. However, the above driving method has at least the following drawbacks: due to the heavy weight of the lens, the movable lens has poor reliability and is more seriously impacted with other structures in the falling process.
Disclosure of Invention
The purpose of the embodiment of the application is to provide a camera module and electronic equipment, can solve among the prior art when the camera adopts movable lens, because lens weight is big, the reliability of mobilizable lens is relatively poor, falling the in-process and striking more serious problem with other structures.
In order to solve the technical problem, the present application is implemented as follows:
in a first aspect, an embodiment of the present application provides a camera module, which includes: the device comprises a lens, a lens fixing component, a photosensitive component and a driving component;
the lens fixing assembly comprises a shell and a substrate, the shell is arranged on the substrate and provided with a mounting hole, and the lens is mounted in the mounting hole;
the lens, the shell and the substrate are enclosed to form an accommodating cavity, the photosensitive assembly is arranged in the accommodating cavity and comprises a carrier and an image sensor, and the image sensor is arranged on the carrier and is opposite to the lens;
the driving assembly is used for driving the carrier to drive the image sensor to move in the accommodating cavity along the optical axis direction of the lens.
Optionally, the driving assembly includes a coil and a driving magnet, the driving magnet is disposed in the housing, the coil is disposed on the carrier, and the coil can be driven by the driving magnet when the coil is powered on, so as to drive the carrier to move along the optical axis of the lens in the accommodating cavity.
Optionally, the photosensitive assembly further includes a first circuit board, the image sensor is disposed on one side of the first circuit board, and the image sensor is electrically connected to the first circuit board.
Optionally, the carrier is provided with a first step groove, and the first circuit board is mounted in the first step groove.
Optionally, the camera module further includes a second circuit board, the second circuit board is a flexible circuit board, the second circuit board is disposed on the substrate, the second circuit board is close to an outer edge region of the side surface of the substrate and connected to the substrate, and the side surface of the first circuit board far away from the image sensor is connected to a center region of the side surface of the substrate far away from the second circuit board.
Optionally, the camera module further includes a position sensing module and a sensing magnet, the position sensing module is disposed on the first circuit board, the sensing magnet is disposed in the housing, the carrier drives the image sensor to move along the optical axis of the lens, and the position sensing module senses the change of the magnetic field generated by the sensing magnet to determine the relative position between the image sensor and the lens.
Optionally, the camera module further includes a controller, and the controller is configured to control the driving assembly according to an imaging result of the image sensor and a relative position between the image sensor and the lens.
Optionally, the photosensitive assembly further includes a filter, the filter is located between the image sensor and the lens, and the filter is perpendicular to the optical axis of the lens.
Optionally, the carrier is provided with a second step groove, and the optical filter is installed in the second step groove.
Optionally, the camera module further includes an elastic sheet, the elastic sheet is disposed in the housing, and the carrier abuts against the elastic sheet when the carrier moves to a preset position along the optical axis of the lens in the direction where the lens is located.
In a second aspect, an embodiment of the present application provides an electronic device, which includes the camera module according to the first aspect.
In this application embodiment, realize auto focus through fixed lens, the mode of moving image sensor, can alleviate and avoid even dropping the in-process and striking with other structures, can also reduce the drive consumption, promote the formation of image effect, reduce the reliability of camera module volume and reinforcing camera module.
Drawings
Fig. 1 is an exploded schematic view of a camera module according to an embodiment of the present disclosure;
FIG. 2 is a schematic view of a lens holder assembly according to an embodiment of the present disclosure;
FIG. 3 is a schematic view of a lens and a housing according to an embodiment of the present disclosure;
FIG. 4 is a schematic structural diagram of a photosensitive assembly according to an embodiment of the present disclosure;
fig. 5 is a schematic top view of a first circuit board according to an embodiment of the present disclosure;
FIG. 6 is a schematic structural diagram of a carrier provided in an embodiment of the present application;
fig. 7 is a schematic structural diagram of a second circuit board according to an embodiment of the present disclosure;
fig. 8 is a schematic bottom view of a first circuit board according to an embodiment of the present disclosure;
fig. 9 is a schematic position diagram of a sensing magnet and a driving magnet provided in an embodiment of the present application.
Detailed Description
The technical solutions in the embodiments of the present application will be clearly and completely described below with reference to the drawings in the embodiments of the present application, and it is obvious that the described embodiments are some, but not all, embodiments of the present application. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present application.
The terms first, second and the like in the description and in the claims of the present application are used for distinguishing between similar elements and not necessarily for describing a particular sequential or chronological order. It will be appreciated that the data so used may be interchanged under appropriate circumstances such that embodiments of the application may be practiced in sequences other than those illustrated or described herein, and that the terms "first," "second," and the like are generally used herein in a generic sense and do not limit the number of terms, e.g., the first term can be one or more than one. In addition, "and/or" in the specification and claims means at least one of connected objects, a character "/" generally means that a preceding and succeeding related objects are in an "or" relationship.
The camera module and the electronic device provided by the embodiment of the present application are described in detail below with reference to the accompanying drawings through specific embodiments and application scenarios thereof.
Referring to fig. 1 to 4, fig. 1 is an exploded schematic view of a camera module according to an embodiment of the present disclosure, fig. 2 is a schematic view of a lens fixing assembly according to an embodiment of the present disclosure, fig. 3 is a schematic view of a lens and a housing according to an embodiment of the present disclosure, and fig. 4 is a schematic view of a structure of a photosensitive assembly according to an embodiment of the present disclosure. As shown in fig. 1 to 4, the camera module in the embodiment of the present application includes a lens 11, a lens fixing component, a photosensitive component, and a driving component, where the lens fixing component is used to fix the lens 11, the lens fixing component includes a housing 121 and a substrate 122, the housing 121 is fixedly disposed on one side of the substrate 122, the housing 121 is provided with a mounting hole, and the lens 11 is mounted in the mounting hole; an accommodating cavity is formed by enclosing the lens 11, the housing 121 and the substrate 122, the photosensitive assembly is arranged in the accommodating cavity, the photosensitive assembly includes a carrier 131 and an image sensor 132, the image sensor 132 is fixedly arranged on the carrier 131, and the image sensor 132 is arranged opposite to the lens 11, that is, the optical axis of the lens 11 is perpendicular to the photosensitive surface of the image sensor 132, so as to convert the received optical signal into an electrical signal; the driving component is used for driving the carrier 131 to drive the image sensor 132 fixed thereon to move in the accommodating cavity along the optical axis direction of the lens 11, so as to change the relative distance between the image sensor 132 and the lens 11, and realize the automatic focusing function of the camera module.
From this, this application embodiment realizes auto focus through fixed lens, the mode of moving image sensor, can alleviate or even avoid falling the in-process and striking with other structures, can also reduce the drive consumption, promotes the imaging effect, reduces camera module volume and strengthens the reliability of camera module.
As shown in fig. 3, in some embodiments of the present application, the lens 11 is fixed to the housing 121 by glue 111, so that a secondary impact force generated when the lens 11 hits other components during a falling process of the camera module can be reduced.
In some embodiments of the present application, the driving assembly includes a driving magnet 141 and a coil 142, wherein the driving magnet 141 is fixedly disposed in the housing 121, and may be disposed on an inner wall of the housing 121, and the coil 142 is fixedly disposed on the carrier 131, and may be disposed around an outer wall of the carrier 131, and the coil 142 is located in an enclosed region of the driving magnet 141, and a central axis of the coil 142 coincides with an optical axis of the lens 11. When the coil 142 is powered on, the coil 142 may be driven by the driving magnet 141, so as to drive the carrier 131 fixed to the coil 142 to move along the optical axis of the lens 11 in the accommodating cavity, so as to change the relative position between the image sensor 132 on the carrier 131 and the lens 11. Therefore, the driving magnet 141 and the coil 142 which are separately arranged are adopted in the embodiment of the application to replace a voice coil motor in the prior art, the occupied volume of the driving assembly can be effectively reduced, so that the volume of the camera module is reduced, the image sensor 132 needs to be driven, the required driving force is small, and the driving power consumption can be reduced.
Referring to fig. 5, fig. 5 is a schematic top view of a first circuit board according to an embodiment of the present disclosure. In other embodiments of the present disclosure, as shown in fig. 5, the photosensitive assembly further includes a first circuit board 133, the image sensor 132 is disposed on the first circuit board 133, and the image sensor 132 is electrically connected to the first circuit board 133, so as to transmit and transfer an electrical signal generated by the image sensor 132.
Referring to fig. 6, fig. 6 is a schematic structural diagram of a carrier according to an embodiment of the present disclosure. As shown in fig. 6, in some embodiments of the present application, a through hole is formed in the middle of the carrier 131, a first step groove 1311 is formed on one end surface of the carrier 131, and the first circuit board 133 is mounted in the first step groove 1311 of the carrier 131. Therefore, the light transmitted by the lens 11 is irradiated to the image sensor 131 on the first circuit board 133 through the through hole in the middle of the carrier 131, and the light sensing is realized.
In other embodiments of the present application, the photosensitive assembly further includes a filter 134, the filter 134 is located between the image sensor 132 and the lens 11, the filter 134 is perpendicular to the optical axis of the lens 11, and the filter 134 is used for filtering a portion of the specific light to improve the imaging quality. As shown in fig. 6, optionally, a second stepped groove 1312 is further disposed on one end surface of the carrier 131, where the first stepped groove 1311 is disposed, and the optical filter 134 is installed in the second stepped groove 1312. The embodiment of the application does not need a bracket for fixing the optical filter, and a step does not exist between the lens 11 and the image sensor 132, so that the height of the camera module can be reduced.
In some optional embodiments, the carrier 131 further defines a coil winding slot 1313 at its outer periphery, and the coil winding slot 1313 is used for winding the fixed coil 142; the outer circumference of the carrier 131 is also provided with coil wire winding posts 1314 so that the coil 142 wound in the coil winding slot 1313 can be connected to a power source through the coil wire winding posts 1314.
Referring to fig. 7 and 8, fig. 7 is a schematic structural diagram of a second circuit board according to an embodiment of the present disclosure, and fig. 8 is a schematic bottom view of a first circuit board according to an embodiment of the present disclosure. As shown in fig. 1 to 8, in other embodiments of the present application, the camera module further includes a second circuit board 15, the second circuit board 15 is a flexible circuit board, the second circuit board 15 is disposed on the substrate 122, and the second circuit board 15 is partially covered by the housing 121, that is, the second circuit board 15 is partially located in the accommodating cavity; in the portion of the second circuit board 15 located in the accommodating cavity, an outer edge region of a side surface close to the substrate 122 is fixedly connected to the substrate 122, a central region of a side surface close to the substrate 122 is not connected to the substrate 122, a side surface of the first circuit board 133 away from the image sensor 132 is connected to a central region of a side surface of the second circuit board 15 away from the substrate 122 (i.e., the central region not connected to the substrate 122), exemplarily, a side surface of the first circuit board 133 away from the image sensor 132 is provided with a circuit connection port 1331, and the first circuit board 133 is connected to a central region (i.e., the black filling portion in fig. 7) of the portion of the second circuit board 15 located in the accommodating cavity through the circuit connection port 1331. Therefore, in the process that the carrier 131 moves along the optical axis of the lens 11 in the accommodating cavity, when the carrier is far away from the substrate 122, the first circuit board 133 fixed on the carrier 131 will be synchronously far away from the substrate 122, and since the first circuit board 133 is connected with the second circuit board 15 and the second circuit board 15 is a flexible circuit board and has a certain bending degree, the part of the second circuit board 15 connected with the first circuit board 133 will be pulled to provide resistance for hindering the movement of the first circuit board 133, and after the coil 142 is powered off, the carrier 131 will be pulled back due to the restoring force of the second circuit board 15, and in the above process, the second circuit board 15 is equivalent to a return spring.
Referring to fig. 9, fig. 9 is a schematic diagram illustrating positions of a sensing magnet and a driving magnet according to an embodiment of the present application. As shown in fig. 9, in some embodiments of the present application, the camera module further includes a position sensing module (not shown in the figure) and a sensing magnet 17, the position sensing module may be disposed on the first circuit board 133, the sensing magnet 17 is disposed in the housing 121, and specifically may be disposed on an inner wall of the housing 121 and above the driving magnet 141, and in a process that the carrier 131 drives the image sensor 132 to move along the optical axis of the lens 11, the position sensing module may sense a change of a magnetic field generated by the sensing magnet 17, so as to determine a relative position between the image sensor 132 and the lens 11, that is, may obtain position information of the image sensor 132 in real time, so as to conveniently control a displacement amount of the image sensor 132. It should be noted that, because the autofocus method adopted in the embodiment of the present application is to drive the image sensor with the lens fixed, and the relative position between the sensing magnet 17 and the driving magnet 141 is fixed, there is no problem of magnetic interference caused by the relative movement between the two, so that the accuracy of the position of the image sensor 132 measured by the position sensing module can be ensured.
Optionally, in some embodiments, the camera module further includes a controller, and the controller is configured to control the driving assembly according to an imaging result of the image sensor and a relative position between the image sensor and the lens. That is to say, the position sensing module feeds back the sensed position information of the image sensor 132 to the controller, and the controller may acquire an imaging result (for example, imaging quality) of the image sensor and the position information of the image sensor fed back by the position sensing module, and then control and adjust the coil 142 in the driving assembly according to whether the imaging result and the relative position between the image sensor and the lens meet the requirement, so as to obtain the optimal relative position between the image sensor and the lens, achieve good focusing, and obtain a better imaging effect. Therefore, in the embodiment of the application, the position sensing module is arranged to realize double closed loop feedback: the imaging result (imaging quality) feedback and the position feedback of the image sensor can effectively improve the control precision of the camera module and the imaging quality.
In some optional embodiments of the present application, the camera module further includes an elastic sheet 16, the elastic sheet 16 is disposed in the housing 121, when the carrier 131 moves to a preset position along the optical axis of the lens 11 toward the direction of the lens 11, the carrier 131 abuts against the elastic sheet 16, and the elastic sheet 16 elastically deforms to provide resistance for preventing the carrier 131 from moving forward. Therefore, when the camera module falls, the elastic sheet 16 can protect the carrier 131 and the image sensor 132 thereon, and the driving assembly of the present application has a larger thrust force, so that the rigidity of the elastic sheet 16 can be properly enhanced to improve the reliability thereof.
In this application embodiment, realize auto focus through fixed lens, the mode of moving image sensor, can alleviate and avoid even dropping the in-process and striking with other structures, can also reduce the drive consumption, promote the formation of image effect, reduce the reliability of camera module volume and reinforcing camera module.
Optionally, an embodiment of the present application further provides an electronic device, which includes the camera module described in any of the above embodiments, and can achieve the same technical effect, and for avoiding repetition, details are not repeated here.
The electronic device in the embodiment of the present application may be a mobile electronic device, and may also be a non-mobile electronic device. By way of example, the mobile electronic device may be a mobile phone, a tablet computer, a notebook computer, a palm top computer, a vehicle-mounted electronic device, a wearable device, an ultra-mobile personal computer (UMPC), a netbook or a Personal Digital Assistant (PDA), and the like, and the non-mobile electronic device may be a Personal Computer (PC), a Television (TV), a teller machine, a self-service machine, and the like, and the embodiments of the present application are not particularly limited.
It should be noted that, in this document, the terms "comprises," "comprising," or any other variation thereof, are intended to cover a non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements does not include only those elements but may include other elements not expressly listed or inherent to such process, method, article, or apparatus. Without further limitation, an element defined by the phrase "comprising an … …" does not exclude the presence of other like elements in a process, method, article, or apparatus that comprises the element. Further, it should be noted that the scope of the methods and apparatus of the embodiments of the present application is not limited to performing the functions in the order illustrated or discussed, but may include performing the functions in a substantially simultaneous manner or in a reverse order based on the functions involved, e.g., the methods described may be performed in an order different than that described, and various steps may be added, omitted, or combined. In addition, features described with reference to certain examples may be combined in other examples.
While the present embodiments have been described with reference to the accompanying drawings, it is to be understood that the invention is not limited to the precise embodiments described above, which are meant to be illustrative and not restrictive, and that various changes may be made therein by those skilled in the art without departing from the spirit and scope of the invention as defined by the appended claims.
Claims (11)
1. The utility model provides a camera module which characterized in that includes: the device comprises a lens, a lens fixing component, a photosensitive component and a driving component;
the lens fixing assembly comprises a shell and a substrate, the shell is arranged on the substrate and provided with a mounting hole, and the lens is mounted in the mounting hole;
the lens, the shell and the substrate are enclosed to form an accommodating cavity, the photosensitive assembly is arranged in the accommodating cavity and comprises a carrier and an image sensor, and the image sensor is arranged on the carrier and is opposite to the lens;
the driving assembly is used for driving the carrier to drive the image sensor to move in the accommodating cavity along the optical axis direction of the lens.
2. The camera module according to claim 1, wherein the driving assembly includes a coil and a driving magnet, the driving magnet is disposed in the housing, the coil is disposed on the carrier, and the coil is driven by the driving magnet when the coil is energized to drive the carrier to move along the optical axis of the lens in the accommodating cavity.
3. The camera module according to claim 1 or 2, wherein the photosensitive assembly further comprises a first circuit board, the image sensor is disposed on one side of the first circuit board, and the image sensor is electrically connected to the first circuit board.
4. The camera module of claim 3, wherein the carrier is provided with a first stepped recess, the first circuit board being mounted in the first stepped recess.
5. The camera module according to claim 3, further comprising a second circuit board, wherein the second circuit board is a flexible circuit board, the second circuit board is disposed on the substrate, an outer edge region of a side of the second circuit board close to the substrate is connected to the substrate, and a side of the first circuit board away from the image sensor is connected to a central region of a side of the second circuit board away from the substrate.
6. The camera module according to claim 3, further comprising a position sensing module and a sensing magnet, wherein the position sensing module is disposed on the first circuit board, the sensing magnet is disposed in the housing, and the position sensing module determines the relative position between the image sensor and the lens by sensing a change in a magnetic field generated by the sensing magnet in a process in which the carrier drives the image sensor to move along the optical axis of the lens.
7. The camera module of claim 6, further comprising a controller for controlling the driving assembly according to the imaging result of the image sensor and the relative position between the image sensor and the lens.
8. The camera module of claim 1, wherein the photosensitive assembly further comprises a filter, the filter is located between the image sensor and the lens, and the filter is perpendicular to an optical axis of the lens.
9. The camera module of claim 8, wherein the carrier is provided with a second stepped recess, and the optical filter is mounted in the second stepped recess.
10. The camera module according to claim 1, further comprising a spring, wherein the spring is disposed in the housing, and when the carrier moves to a predetermined position along the optical axis of the lens toward the lens, the carrier abuts against the spring.
11. An electronic device, comprising the camera module according to any one of claims 1 to 10.
Priority Applications (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202110475146.1A CN113014788A (en) | 2021-04-29 | 2021-04-29 | Camera module and electronic equipment |
| PCT/CN2022/088426 WO2022228300A1 (en) | 2021-04-29 | 2022-04-22 | Camera module and electronic device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202110475146.1A CN113014788A (en) | 2021-04-29 | 2021-04-29 | Camera module and electronic equipment |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN113014788A true CN113014788A (en) | 2021-06-22 |
Family
ID=76380685
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202110475146.1A Pending CN113014788A (en) | 2021-04-29 | 2021-04-29 | Camera module and electronic equipment |
Country Status (2)
| Country | Link |
|---|---|
| CN (1) | CN113014788A (en) |
| WO (1) | WO2022228300A1 (en) |
Cited By (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113242381A (en) * | 2021-06-30 | 2021-08-10 | 维沃移动通信有限公司 | Camera module and electronic equipment |
| CN113242380A (en) * | 2021-06-30 | 2021-08-10 | 维沃移动通信有限公司 | Camera module and electronic equipment |
| CN113411484A (en) * | 2021-07-20 | 2021-09-17 | 维沃移动通信有限公司 | Camera module and electronic equipment |
| CN113472987A (en) * | 2021-06-30 | 2021-10-01 | 维沃移动通信（杭州）有限公司 | Imaging device and electronic apparatus |
| CN113489885A (en) * | 2021-08-03 | 2021-10-08 | 维沃移动通信有限公司 | Camera module and electronic equipment |
| CN113824866A (en) * | 2021-09-17 | 2021-12-21 | Oppo广东移动通信有限公司 | Camera module and terminal equipment |
| WO2022228300A1 (en) * | 2021-04-29 | 2022-11-03 | 维沃移动通信有限公司 | Camera module and electronic device |
| WO2024065873A1 (en) * | 2022-09-29 | 2024-04-04 | 高瞻创新科技有限公司 | Camera focusing module, focusing method, terminal device and medium |
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Application publication date: 20210622 |