WO2022041147A1

WO2022041147A1 - Photographing module and control method therefor, photographing apparatus, electronic device, and readable storage medium

Info

Publication number: WO2022041147A1
Application number: PCT/CN2020/112275
Authority: WO
Inventors: 薛光怀; 王平; 赵坤雷
Original assignee: 深圳市大疆创新科技有限公司
Priority date: 2020-08-28
Filing date: 2020-08-28
Publication date: 2022-03-03
Also published as: CN113228613B; CN113228613A

Abstract

A photographing module (100) and a control method therefor, a photographing apparatus (1000), an electronic device, and a computer-readable storage medium. The photographing module (100) comprises a housing (10), a lens assembly (20), a connecting member (30) and a driving assembly (40), wherein the connecting member (30) comprises a first sub-connecting member (31) and a second sub-connecting member (32) that are concentrically arranged; the first sub-connecting member (31) is arranged on the periphery of the second sub-connecting member (32); the second sub-connecting member (32) can rotate and swing relative to the first sub-connecting member (31); the first sub-connecting member (31) is fixedly connected to the housing (10); and the lens assembly (20) penetrates the second sub-connecting member (32) and is fixedly connected to the second sub-connecting member (32). The driving assembly (40) is connected to the lens assembly (20), and the driving assembly (40) is used for driving the lens assembly (20) to rotate and swing within a preset space.

Description

Shooting module and control method thereof, shooting device, electronic device and readable storage medium

technical field

The present application relates to the field of photographing technologies, and in particular, to a photographing module and a control method thereof, a photographing device, an electronic device, and a readable storage medium.

Background technique

In the related art, when the shooting module is shooting, the light enters the image sensor through the lens, and the slight jitter during the photosensitive process causes the change of the imaging point of the light on the sensor, thereby causing the image to be blurred.

SUMMARY OF THE INVENTION

Embodiments of the present application provide a photographing module and a control method thereof, a photographing apparatus, an electronic device, and a readable storage medium.

A shooting module provided by the embodiment of the present application includes:

case;

lens assembly;

a connector, the connector includes a first sub-connector and a second sub-connector that are concentrically arranged, the first sub-connector is arranged on the periphery of the second sub-connector, and the second sub-connector can Rotating and swinging relative to the first sub-connector, the first sub-connector is fixedly connected to the housing, and the lens assembly passes through the second sub-connector and is fixedly connected to the second sub-connector; and

A driving assembly, the driving assembly is connected with the lens assembly, and the driving assembly is used for driving the lens assembly to rotate and swing in a preset space.

Another shooting module provided by the embodiment of the present application includes:

case;

lens assembly;

a connecting piece, the connecting piece includes a first sub-connecting piece and a second sub-connecting piece, the second sub-connecting piece can rotate and swing relative to the first sub-connecting piece, and the first sub-connecting piece is arranged on the The periphery of the second sub-connector, the first sub-connector is fixedly connected to the housing, and the lens assembly is fixedly connected to the second sub-connector;

The driving assembly is connected with the whole formed by the fixed connection of the lens assembly and the second sub-connector, and the driving assembly is used for driving the lens assembly to rotate and swing in a preset space.

Embodiments of the present application also provide a control method for a shooting module, including:

Acquire the current position of the lens assembly, wherein the shooting module includes a housing, a lens assembly, a connector and a drive assembly, the connector includes a first sub-connector and a second sub-connector, the first sub-connector The sub-connector is arranged on the periphery of the second sub-connector, the second sub-connector can rotate and swing relative to the first sub-connector, the first sub-connector is fixedly connected to the housing, the The lens assembly is fixedly connected with the second sub-connector, and the driving assembly is used to drive the lens assembly to rotate and swing;

determining whether the current location matches the target location;

When the current position does not match the target position, the driving assembly is controlled to drive the lens assembly to rotate and swing to move the lens assembly to a target position, where the target position includes the optical axis of the lens assembly and the The position where the lens assembly is located when the central axis of the casing is coincident or the included angle between the optical axis of the lens assembly and the central axis of the casing is smaller than a preset angle.

An embodiment of the present application provides a photographing device, and the photographing device includes:

housing; and

In the shooting module described in the above embodiment, the shooting module is disposed on the casing.

Embodiments of the present application further provide a readable storage medium storing a computer program, and when the computer program is executed by one or more processors, the control method of the photographing module of the above embodiment is implemented.

Embodiments of the present application further provide an electronic device, the electronic device comprising:

case;

functional parts;

a connector, the connector includes a first sub-connector and a second sub-connector that are concentrically arranged, the first sub-connector is arranged on the periphery of the second sub-connector, and the second sub-connector can Rotating and swinging relative to the first sub-connector, the first sub-connector is fixedly connected to the housing, and the functional component passes through the second sub-connector and is fixedly connected to the second sub-connector; and

A driving assembly is connected to the functional component, and the driving component is used for driving the functional component to rotate and swing in a preset space.

In the photographing module, the control method for the photographing module, the photographing device, the electronic device, and the readable storage medium according to the embodiments of the present application, the second sub-connector can rotate and swing relative to the first sub-connector, and the first sub-connector is fixedly connected The housing, the lens assembly or the functional element is fixedly connected with the second sub-connector, and the driving assembly can drive the lens assembly or the functional element to rotate and swing in a preset space. In this way, when the photographing module or the electronic device shakes, the lens assembly or the functional element can be driven to rotate and swing through the driving assembly to compensate and correct the shake, thereby realizing the anti-shake function.

Additional aspects and advantages of embodiments of the present application will be set forth, in part, in the following description, and in part will be apparent from the following description, or learned by practice of embodiments of the present application.

Description of drawings

The above and/or additional aspects and advantages of the present application will become apparent and readily understood from the following description of embodiments taken in conjunction with the accompanying drawings, wherein:

1 is a schematic structural diagram of a photographing device according to an embodiment of the present application;

2 is a schematic structural diagram of a shooting module according to an embodiment of the present application;

3 is another schematic structural diagram of a shooting module according to an embodiment of the present application;

Fig. 4 is the cross-sectional schematic diagram of the shooting module in Fig. 3 along line IV-IV;

5 is an exploded schematic view of a photographing module according to an embodiment of the present application;

6 is a schematic structural diagram of a connector of a photographing module according to an embodiment of the present application;

FIG. 7 is another schematic structural diagram of a connector of a photographing module according to an embodiment of the present application;

8 is a schematic diagram of the installation structure of a drive coil and a magnetic member of a shooting module according to an embodiment of the present application;

9 is a schematic diagram of another installation structure of the driving coil and the magnetic member of the photographing module according to the embodiment of the present application;

10 is a partial structural schematic diagram of a shooting module according to an embodiment of the present application;

11 is a schematic flowchart of a control method of a photographing module according to an embodiment of the present application;

12 is a schematic diagram of a module of a shooting module according to an embodiment of the present application;

13 is another schematic flowchart of a control method of a photographing module according to an embodiment of the present application;

14 is another schematic flowchart of a control method for a photographing module according to an embodiment of the present application;

15 is another schematic flowchart of the control method of the photographing module according to the embodiment of the present application;

FIG. 16 is still another schematic flowchart of a control method of a photographing module according to an embodiment of the present application.

Description of main component symbols:

photographing device 1000;

Shooting module 100, housing 10, lens assembly 20, connector 30, first sub-connector 31, first spherical surface 311, second sub-connector 32, second spherical surface 321, drive assembly 40, drive coil 41, magnetic component 42 , mounting base 43 , mounting surface 431 , yoke 44 , position detection device 50 , Hall sensor 51 , and processor 60 .

detailed description

Embodiments of the present application are described in detail below, examples of which are illustrated in the accompanying drawings, wherein the same or similar reference numerals refer to the same or similar elements or elements having the same or similar functions throughout. The embodiments described below with reference to the accompanying drawings are exemplary, only used to explain the present application, and should not be construed as a limitation on the present application.

In the description of the present application, it should be understood that the terms "first" and "second" are only used for description purposes, and cannot be interpreted as indicating or implying relative importance or implicitly indicating the number of indicated technical features. Thus, features defined as "first", "second" may expressly or implicitly include one or more of said features. In the description of this application, "plurality" means two or more, unless otherwise expressly and specifically defined.

In the description of this application, it should be noted that, unless otherwise expressly specified and limited, the terms "installed", "connected" and "connected" should be understood in a broad sense, for example, it may be a fixed connection or a detachable connection Connection, or integral connection; it can be mechanical connection, electrical connection or can communicate with each other; it can be directly connected or indirectly connected through an intermediate medium, it can be the internal communication of two elements or the interaction of two elements relation. For those of ordinary skill in the art, the specific meanings of the above terms in this application can be understood according to specific situations.

The following disclosure provides many different embodiments or examples for implementing different structures of the present application. To simplify the disclosure of the present application, the components and arrangements of specific examples are described below. Of course, they are only examples and are not intended to limit the application. Furthermore, this application may repeat reference numerals and/or reference letters in different instances for the purpose of simplicity and clarity, and does not in itself indicate a relationship between the various embodiments and/or arrangements discussed. In addition, this application provides examples of various specific processes and materials, but one of ordinary skill in the art will recognize the application of other processes and/or the use of other materials.

In the related art, the anti-shake solutions include electronic anti-shake, optical anti-shake, body anti-shake and gimbal anti-shake. For Electronic Image Stabilization (EIS), its cost is low, and it can be realized by pure software algorithm, but this reduces the utilization rate of CCD, and will bring a certain loss to the picture clarity. For optical image stabilization and body image stabilization (OIS&BIS), the image stabilization mechanism is more complicated, and the image stabilization range is limited (usually ±0.5° and below 20Hz). For gimbal anti-shake (GS), its compensation angle is large (usually more than ±20°), and it has particularly good anti-shake performance for extreme sports, and the image resolution will not be lost in the corner of the screen, but it is relatively For small devices, the size and power consumption of the stabilizer are relatively large.

On this basis, the inventor found that there is no better technical solution that can solve the anti-shake problem of smaller devices. Based on this, the embodiment of the present application proposes an anti-shake solution with a compact structure, high efficiency and high reliability, which can be used in electronic equipment. For small electronic equipment, such as a photographing device, it can effectively solve the image problem caused by the body shake. vague question.

In some embodiments, the embodiments of the present application provide an electronic device, including: a housing; a functional component; a connector, the connector includes a first sub-connector and a second sub-connector, the first sub-connector The connector is arranged on the periphery of the second sub-connector, the second sub-connector can swing relative to the first sub-connector, the first sub-connector is fixedly connected to the housing, and the function A component penetrates the second sub-connector and is fixedly connected to the second sub-connector; and a driving assembly, the driving component is connected to the functional component, and the driving component is used to drive the functional component in a preset Rotating and swinging in space. Wherein, the first sub-connector and the second sub-connector may be arranged concentrically.

Electronic equipment includes equipment that requires stabilization, and functional components include modules that require stabilization. For example, in the field of photography, the electronic device may be a photography module, and the functional component may be a lens assembly. For another example, in the field of monitoring technology, the electronic device may include a monitoring module for monitoring the object to be monitored, and the functional component may include a sampling assembly for sampling the object to be monitored at a fixed position.

Hereinafter, the embodiments of the present application will be described by taking an electronic device as a photographing module and a functional component as a lens assembly as an example. Referring to FIG. 1 , the photographing module 100 of the embodiment of the present application can be applied to the photographing device 1000 of the embodiment of the present application. The photographing device 1000 includes a casing and a photographing module 100 , and the photographing module 100 is disposed on the casing.

In the related art, when a photographing device such as a camera shoots, light enters the image sensor through a lens, however, slight jitter during the photosensitive process will cause changes in the imaging point of the light on the sensor, resulting in blurred images.

Referring to FIGS. 2 to 5 , the photographing module 100 of the embodiment of the present application includes a housing 10 , a lens assembly 20 , a connecting member 30 and a driving assembly 40 , and the connecting member 30 includes a concentrically arranged first sub-connecting member 31 and a second sub-connecting member 31 . The sub-connector 32, the first sub-connector 31 is arranged on the periphery of the second sub-connector 32, the first sub-connector 31 is fixedly connected to the housing 10, the lens assembly 20 passes through the second sub-connector 32 and is connected with the second sub-connector 32. The connecting piece 32 is fixedly connected. The driving assembly 40 is connected to the lens assembly 20, and the driving assembly 40 is used for driving the lens assembly 20 to rotate and swing in a preset space.

In the photographing module 100 and the photographing device 1000 according to the embodiments of the present application, the second sub-connector 32 can rotate and swing relative to the first sub-connector 31 , the first sub-connector 31 is fixedly connected to the housing 10 , and the lens assembly 20 is connected to the second sub-connector 31 . The sub-connector 32 is fixedly connected, and the drive assembly 40 can drive the lens assembly 20 to rotate and swing within a preset space. In this way, when the photographing module 100 is shooting, if the photographing module 100 shakes, the lens assembly 20 can be driven to rotate and swing by the driving assembly 40 to compensate and correct the shaking, thereby realizing the anti-shake function and improving the image quality. The camera module 100 can be moved at small angles (for example, less than ±10°) in the three directions of Pitch, Yaw and Roll, so as to realize the five-axis anti-shake of the camera module 100 . In addition, it does not need to take up a larger volume of the stabilizer and consume a large amount of power like the gimbal anti-shake (GS) solution, which is conducive to realizing the anti-shake function of smaller devices.

Specifically, in the embodiments of the present application, the photographing device 1000 may be a motion camera, and the motion camera is used for photographing in a motion environment. It can be understood that during the motion, the photographing device 1000 may be affected by jitter, thereby affecting the photographing. As a result, in the embodiment of the present application, if shaking occurs during shooting, the lens assembly 20 can be driven to rotate and swing by the driving assembly 40 to compensate and correct the shaking, thereby improving the imaging quality. Of course, it can be understood that, in other embodiments, the photographing device 1000 can also be an electronic device with a photographing function such as a mobile phone. In this way, when using an electronic device such as a mobile phone for photographing, if there is jitter, the driving component 40 can be used for shooting. The lens assembly 20 is driven to rotate and oscillate to compensate and correct the shake, so as to avoid the impact of the shake on the image quality.

It should be noted that the center of the connector 30 is the geometric center of the connector 30 . The above-mentioned "preset space" refers to the range covered by the envelope surface formed when the lens module rotates and swings in the space. The lens module can rotate and swing arbitrarily within the range. In the following embodiments, if the same or similar It can also be understood with reference to this description.

In some embodiments, the center of gravity of the lens assembly 20 coincides with the center of gravity of the connector 30 .

In this way, the center of gravity of the lens assembly 20 coincides with the center of gravity of the connecting member 30, which can reduce the resistance of the lens assembly 20 during movement. Dither, reducing power consumption.

Specifically, in such an embodiment, the first sub-connector 31 and the second sub-connector 32 of the connector 30 are both regular shapes, and they are arranged concentrically, and the center of gravity of the connector 30 is the geometric center of the connector 30 .

In some embodiments, the second sub-connector 32 can swing relative to the first sub-connector 31 around the center of the connector 30 , and the driving assembly 40 is used to drive the lens assembly 20 around the center of the connector 30 within a preset space Rotary swing.

In this way, the swing angle of the lens assembly 20 can be calculated with the center of the connecting member 30 as a reference, so as to obtain the relative position of the lens assembly 20 and the housing 10 accurately.

Specifically, in such an embodiment, when the photographing module 100 is in a stationary state and there is no shaking, the optical axis X of the lens assembly 20 and the central axis of the connecting member 30 coincide or the included angle between the two is within a preset angle range In the shooting process, if there is jitter, the lens assembly 20 will move a certain amount, which will reduce the image quality. The direction of movement, so as to compensate for the shake, so as to ensure the image quality.

Further, in such an embodiment, the swing angle range of the lens assembly 20 to rotate and swing around the center of the connecting member 30 within the preset space is approximately ±10 degrees.

In this way, the swing angle range of the lens assembly 20 is large, and the anti-shake range is large, and the shake compensation cannot be realized because the shake of the lens assembly 20 is too large.

Specifically, in such an embodiment, the swing angle of the lens assembly 20 refers to the central axis of the connecting member 30 as the center line, and the swing angle of the lens assembly 20 is approximately ±10 degrees. In the embodiment of the present invention, the above-mentioned preset space refers to the range covered by swinging approximately ±10 degrees with the center of the connector 30 as the midpoint and the center axis of the connector 30 as the center line.

Please refer to FIG. 4 and FIG. 6 , in some embodiments, the second sub-connector 32 is sleeved in the first sub-connector 31 , a first spherical surface 311 is formed on the inner side of the first sub-connector 31 , and the second sub-connector 31 is formed on the inner side of the first sub-connector 31 . A second spherical surface 321 is formed on the outer side of the connecting member 32 .

Specifically, in such an embodiment, the first spherical surface 311 of the first sub-connector 31 and the second spherical surface 321 of the second sub-connector 32 are in sliding contact.

In this way, the contact surfaces of the first sub-connector 31 and the second sub-connector 32 are spherical, so that the second sub-connector 32 can stably rotate and swing relative to the first sub-connector 31 , that is, the second sub-connector 32 can swing stably. The sub-connector 32 can perform spherical motion relative to the first sub-connector 31 , that is, the second sub-connector 32 can swing freely within the first sub-connector 31 . In addition, the spherical sliding contact between the first sub-connector 31 and the second sub-connector 32 can reduce the sliding friction between the first sub-connector 31 and the second sub-connector 32 and reduce resistance.

It can be understood that, in order to further reduce friction, in some embodiments, lubricating oil may be injected between the first sub-connector 31 and the second sub-connector 32 .

In addition, in some embodiments, a rolling member, such as a ball, may be disposed between the first sub-connecting member 31 and the second sub-connecting member 32 , and the rolling member may be opposite to the first sub-connecting member 31 and the second sub-connecting member 32 Rolling, when the second sub-connector 32 rotates and swings relative to the first sub-connector 31, the roller rolls between the two, so that the second sub-connector 32 and the first sub-connector 31 will not directly contact, and the rolling There is rolling friction between the two sub-connectors, and the frictional force is small, so that the movement of the second sub-connector 32 is smoother.

In some embodiments, the connecting member 30 can be a joint bearing, the first connecting member 30 can be an outer ring of the joint bearing, and the second sub-connecting member 32 can be an inner ring of the joint bearing.

In this way, the joint bearing 30 can make the lens assembly 20 rotate and swing in space, that is to say, the lens assembly 20 can rotate along the coordinate axis of the space coordinate system in the space coordinate system, so that the lens assembly 20 can move to Any position within the preset space for anti-shake.

Specifically, in such an embodiment, the center of the connector 30 is used as the coordinate origin, and the optical axis of the lens assembly 20 is used as the Z-axis direction of the spatial coordinate system to establish a spatial coordinate system. It rotates and oscillates along its center. Therefore, except that the movement degree of freedom in the Z-axis direction is restricted, the other 5 degrees of freedom are not restricted, thereby realizing five-axis anti-shake.

In addition, in the embodiment of the present application, the spherical plain bearing can be selected from the standard series of spherical plain bearings. Of course, in some embodiments, the bearings can also be customized according to the actual structural requirements of the shooting module 100 and the lens assembly 20 to reduce the play and frictional resistance of the joint bearing as much as possible while satisfying the movement range of the lens assembly 20 . In this way, compared with the standard spherical plain bearing, the spherical plain bearing customized according to the actual structural requirements can be adapted to specific working conditions, and the volume and weight of the spherical plain bearing can be reduced, so that the structure of the photographing module 100 can be more compact.

Referring to FIG. 4 , in some embodiments, the driving assembly 40 and the lens assembly 20 are arranged along the optical axis X of the lens assembly 20 .

In this way, the arrangement of the driving assembly 40 and the lens assembly 20 along the optical axis X can effectively reduce the volume of the photographing module 100 in the radial direction.

It can be understood that, in other embodiments, the driving assembly 40 may also be disposed along the circumference of the lens assembly 20 , that is, the driving assembly 40 may be disposed at the periphery of the lens assembly 20 , and the specific arrangement is not limited herein.

Referring to FIGS. 4 and 5 , in some embodiments, the drive assembly 40 includes a voice coil motor. In some embodiments, the driving assembly 40 includes a driving coil 41 and a magnetic member 42, the driving coil 41 and the magnetic member 42 are disposed opposite to each other, and the driving coil 41 is used to generate a force that interacts with the magnetic member 42 when energized In order to drive the lens assembly 20 to rotate and swing in the preset space.

In this way, when the lens assembly 20 needs to be driven to rotate and swing, the drive coil 41 can be energized, and the drive coil 41 can generate a magnetic field, thereby generating an interaction force with the magnetic member 42 to drive the lens assembly 20 to rotate and swing within the preset space. , to compensate for jitter.

Specifically, in such an embodiment, one of the driving coil 41 and the magnetic member 42 is fixedly arranged on the lens assembly 20 , and the other is fixedly arranged on the housing 10 . In this way, the interaction force between the driving coil 41 and the magnetic member 42 can also act on the lens assembly 20, thereby driving the lens assembly 20 to rotate and swing. The magnetic member 42 may be a permanent magnet or an electromagnet or other element that has magnetism or has magnetism in a certain state.

Preferably, please refer to FIG. 4 and FIG. 5 , in the illustrated embodiment, the driving coil 41 is fixedly arranged on the housing 10 , and the magnetic member 42 is fixedly arranged on the lens assembly 20 . In this way, arranging the driving coil 41 with a lighter mass on the lens assembly 20 can reduce the resistance to the movement of the lens assembly 20, thereby making the driving coil 41 smaller.

Referring to FIG. 8 , in some embodiments, the line connecting the geometric center N of the driving coil 41 and the center M of the connector 30 is substantially perpendicular to the plane 411 on which the driving coil 41 is installed.

In this way, when the lens assembly 20 drives the driving coil 41 or the magnetic member 42 to swing around the center line of the connecting member 30, the swing radius is small, so that the driving coil 41 or the magnetic member 42 can be moved as far as possible without interfering with the movement of the driving coil 41 or the magnetic member 42. While ensuring that the driving output is satisfied, the gap h between the driving coil 41 and the magnetic member 42 is reduced, so as to improve the driving efficiency of the driving assembly 40 and greatly reduce the overall size of the photographing device 1000 .

Specifically, the driving coil 41 is fixedly installed on the lens assembly 20 as an example for description, please refer to FIG. , the drive coil 41 on the lens assembly 20 also rotates and oscillates around the center M of the connector 30, and its motion trajectory L is an arc shape, and the radius of the motion trajectory of the center N of the drive coil 41 is the center M of the connector 30 and the drive coil. The length of the connection of the geometric center N of 41.

It can be understood that, referring to FIG. 9 , if the line between the center M of the connector 30 and the geometric center N of the drive coil 41 is not substantially perpendicular to the plane 411 on which the drive coil 41 is installed, the radius of the motion trajectory L1 of the drive coil 41 is obviously It is larger than the radius of L in FIG. 8, so that the gap h between the driving coil 41 and the magnetic member 42 needs to be large enough. If the gap h between the magnetic member 42 and the driving coil 41 is too small, the driving The coil 41 interferes and collides with the magnetic member 42 during movement, thereby affecting the movement of the lens assembly 20. However, if the gap h between the magnetic member 42 and the driving coil 41 is too large, the driving efficiency will be too low. Therefore, the driving efficiency will be too low. The connection line between the geometric center N of the coil 41 and the center M of the connector 30 is designed to be approximately perpendicular to the plane 411 on which the driving coil 41 is installed, so as to reduce the radius of the motion trajectory of the driving coil 41 as much as possible, so that the driving coil 41 and the magnetic element The gap h between 42 can be minimized, thereby improving driving efficiency.

It can be understood that when the driving coil 41 is fixedly mounted on the housing 10 and the magnetic member 42 is mounted on the lens assembly 20, the implementation principle thereof is basically the same as the above, and will not be repeated here.

It can be understood that, in such an embodiment, the shape of the driving coil 41 may be a regular shape such as a circle or a racetrack shape.

Referring to FIGS. 4 and 5 , in some embodiments, the driving assembly 40 further includes a mounting base 43 , the mounting base 43 is fixedly connected to the lens assembly 20 , and the mounting base 43 is used for fixedly mounting the driving coil 41 .

In this way, the drive coil 41 can be installed on the installation base 43 first, and then the installation base 43 can be fixedly installed on the lens assembly 20, so as to realize the fixed connection between the drive coil 41 and the lens assembly 20. 41 For replacement or maintenance, it is only necessary to remove the mounting base 43 from the lens assembly 20, without removing the entire lens assembly 20 or directly replacing it on a larger component such as the lens assembly 20. And maintenance, simple and convenient.

Referring to FIGS. 4 and 5 again, in some embodiments, the mounting base 43 is formed with a mounting surface 431, the mounting surface 431 intersects the optical axis X of the lens assembly 20, and the driving coil 41 is mounted on the mounting surface 431 to drive the The line connecting the geometric center of the coil 41 and the center of the connector 30 is substantially perpendicular to the mounting surface 431 . It can be understood that the mounting surface 431 here is the above-mentioned plane 411 on which the driving coil 41 is mounted.

In this way, the line connecting the geometric center of the driving coil 41 and the center of the connecting member 30 is substantially perpendicular to the mounting surface 431 to reduce the gap between the driving coil 41 and the magnetic member 42 as much as possible, thereby improving the driving efficiency of the driving assembly 40 .

In some embodiments, the number of driving coils 41 is at least three, and the mounting surfaces 431 on which each driving coil 41 is mounted are different.

In this way, by installing the driving coils 41 on the three different mounting surfaces 431 on the mounting base 43 respectively, the three driving coils 41 can drive the lens assembly 20 to rotate and swing at any angle in the preset space, thereby realizing anti-shake. .

Of course, it can be understood that, in the embodiment of the present application, the number of driving coils 41 may also be greater than three, as long as three driving coils 41 are located on different mounting surfaces 431 , for example, in FIG. 4 and FIG. In the embodiment shown in FIG. 5 , the number of the driving coils 41 is four, the number of the magnetic members 42 is also four, and the mounting surfaces 431 of the four driving coils 41 are different.

Referring to FIGS. 4 and 5 , in some embodiments, the photographing module 100 further includes a yoke 44 , the magnetic member 42 is mounted on the yoke 44 , and the yoke 44 is fixedly connected to the housing 10 .

In this way, the presence of the yoke 44 can enhance the pull-in force of the driving coil 41 , thereby improving the driving efficiency of the driving coil 41 . Specifically, in such an embodiment, the yoke 44 may be a single-sided yoke or a double-sided yoke, preferably a double-sided yoke.

Referring to FIG. 5 , in some embodiments, the photographing module 100 further includes a position detection device 50 , and the position detection device 50 is used to detect the relative position of the lens assembly 20 and the housing 10 .

In this way, the relative position of the lens assembly 20 and the housing 10 can be detected by the position detection device 50, so as to determine whether it is necessary to drive the lens assembly 20 to move through the driving coil 41 for anti-shake.

Specifically, in such an embodiment, the position detection device 50 can detect the position coordinates of the lens assembly 20 in real time, so as to determine whether the lens assembly 20 shakes, that is, whether the position of the lens assembly 20 is shifted, and when the shift occurs , the photographing module 100 can drive the lens assembly 20 to move in the opposite direction through the driving assembly 40 so that the lens assembly 20 returns to the original position to realize anti-shake.

Further, referring to FIG. 10 , in some embodiments, the driving coil 41 is fixedly arranged on the lens assembly 20 , the magnetic member 42 is fixedly arranged on the housing 10 , the position detection device 50 is arranged on the lens assembly 20 , and the position detection device 50 is used for sensing the position of the magnetic member 42 to detect the relative position of the lens assembly 20 and the housing 10 .

Specifically, in such an embodiment, the position detection device 50 may include a Hall sensor 51 , and the Hall sensor 51 is used to sense the magnetic field strength to detect the relative position of the lens module and the housing 10 .

In this way, the position detection device 50 is installed on the lens assembly 20 and follows the movement of the lens assembly 20. When the lens assembly 20 moves, the magnetic member 42 is fixed differently, and the magnetic field intensity detected by the Hall sensor 51 changes, so that the magnetic field intensity can be determined according to the magnetic field intensity. The relative positions of the lens assembly 20 and the housing 10 are determined, and when the position of the lens assembly 20 is shifted, the lens assembly 20 can be driven to rotate and swing by the driving assembly 40 to achieve correction.

Still further, referring to FIG. 10 , in such an embodiment, the Hall sensor 51 is disposed within the drive coil 41 .

In this way, arranging the Hall sensor 51 on the driving coil 41 can save the installation space of the photographing module 100 , so that the volume of the photographing module 100 can be made smaller.

Specifically, in such an embodiment, the driving coil 41 may be in the shape of a racetrack, and the Hall sensor 51 is installed at the central position of the driving coil 41 . It can be understood that, in other embodiments, the driving coil 41 may also have other shapes, such as a circle, which is not specifically limited here, as long as the Hall sensor 51 can be placed inside it.

In addition, in some embodiments, the position detection device 50 may also include a position detection sensor such as a gyroscope, and the gyroscope may be installed on the lens assembly 20 to detect the position of the lens assembly 20 in real time. The type is limited, as long as the relative position of the lens assembly 20 and the housing 10 can be detected.

In the above-mentioned embodiment, the first sub-connector 31 and the second sub-connector 32 are arranged concentrically. It can be understood that in other embodiments, the first sub-connector 31 and the second sub-connector 32 may also be eccentrically arranged, and the second sub-connector 32 only needs to rotate and swing relative to the first sub-connector 31 , There is no specific limitation here.

In addition, in some embodiments, the lens assembly 20 may not pass through the second sub-connector 32 , but one end of the lens assembly 20 is installed in the second sub-connector 32 and is fixedly connected with the second sub-connector 32 ie Can.

Furthermore, in some embodiments, the driving assembly 40 may be connected with the lens assembly 20 and the second sub-connector 32 in a fixed connection to form an integral connection, and the driving assembly 40 is used to drive the lens assembly 20 to rotate and swing in a preset space. . That is to say, in such an embodiment, one of the driving coil 41 and the magnetic member 42 of the driving assembly 40 may be fixedly connected with the second sub-connecting member 32 or directly fixedly connected with the lens assembly 20, and the other The housing 10 is fixedly connected, which is not specifically limited here.

In the embodiment of the present application, by building the drive assembly 40 and the connecting member 30 inside the shooting module 100, the three-axis motion is coupled together without a complex multi-level structure, and a miniature precision three-axis pan/tilt can be formed to realize the shooting module. The 100 moves at small angles (eg, less than ±10°) in the three directions of Pitch, Yaw and Roll, so as to realize the five-axis image stabilization of the shooting module 100 . Compared with traditional anti-shake solutions, such as EIS, this solution will not affect the utilization rate of CCD, and can achieve a larger angle of anti-shake effect than existing OIS and BIS. strong reliability,

Please refer to FIG. 4 and FIG. 11 , an embodiment of the present application further provides a control method for the photographing module 100, which is used for the photographing module 100, and the control method includes the steps:

S10: Acquire the current position of the lens assembly 20; wherein, the photographing module 100 includes the housing 10, the lens assembly 20, the connector 30 and the drive assembly 40, and the connector 30 includes a first sub-connector 31 and a second sub-connector 32 , the first sub-connector 31 is arranged on the periphery of the second sub-connector 32, the second sub-connector 32 can rotate relative to the first sub-connector 31, the first sub-connector 31 is fixedly connected to the housing 10, the lens assembly 20 Fixedly connected with the second sub-connector 32 , the driving assembly 40 is used to drive the lens assembly 20 to rotate and swing.

S30: In the case that the current position does not match the target position, control the drive assembly 40 to drive the lens assembly 20 to rotate and swing to move the lens assembly 20 to the target position, where the target position includes the optical axis X of the lens assembly 20 and the center of the housing 10 The position of the lens assembly 20 when the axes coincide or the included angle between the optical axis X of the lens assembly 20 and the central axis of the housing 10 is smaller than the preset angle.

Referring to FIG. 12 , in some embodiments, the photographing module 100 further includes a processor 60 and a position detection device 50 , the position detection device 50 is connected to the processor 60 , and the position detection device 50 is used to detect the position of the lens assembly 20 . Both steps S10 and S30 can be implemented by the processor 60 . That is to say, the processor 60 is configured to obtain the current position of the lens assembly 20 through the position detection device 50, and control the driving assembly 40 to drive the lens assembly 20 to rotate within the preset space when the current position does not match the target position. The lens assembly 20 is oscillated to move to the target position, thereby compensating for the deviation of the position of the lens assembly 20 caused by the shaking of the lens assembly 20, and improving the image quality.

In the control method of the above embodiment, it can be determined whether the lens assembly 20 shakes by comparing the current position of the lens assembly 20 with the target position. At this time, the lens assembly 20 can be driven to rotate and swing by controlling the drive assembly 40 to move the lens assembly 20 to the target position, so as to realize the anti-shake function and improve the image quality.

Specifically, in this embodiment, the "target position" may be that the optical axis X of the lens assembly 20 and the central axis of the housing 10 coincide or the angle between the two is smaller than the preset angle when the shooting module 100 is stationary When the lens assembly 20 is located, in this state, the imaging quality of the photographing module 100 is good. Therefore, in some embodiments, the target position can be demarcated as the coordinate origin, and when the lens assembly 20 shakes and the position of the lens assembly 20 is shifted, the position detection device 50 can obtain the current position coordinates of the lens assembly 20 , and then control the driving assembly 40 to reversely drive the lens assembly 20 to rotate and swing according to the position coordinates to move to the target position, that is, move to the position of the coordinate origin.

It should be noted that, in the embodiments of the present application, the above-mentioned “preset angle” can be determined according to actual tests, for example, 0.5 degrees or 1 degree or other values, and it only needs to be between the optical axis X of the lens assembly 20 and the shell When the included angle between the central axes of the body 10 is smaller than the preset angle, the imaging quality of the photographing module 100 will not be affected or the imaging quality will be less affected. In addition, in the control method of the present application, the specific structures of components such as the driving assembly 40 , the position detection device 50 , and the connecting piece 30 are the same as those of the photographing module 100 described in the above-mentioned embodiment. Repeat the elaboration.

Referring to FIG. 13, in some embodiments, step S10 includes steps:

S11: Obtain the angle between the optical axis X of the lens assembly 20 and the central axis of the housing 10;

S12: Obtain the current position according to the included angle.

In some embodiments, the above steps S11 and S12 can also be implemented by the processor 60 . That is to say, the processor 60 is configured to obtain the included angle between the optical axis X of the lens assembly 20 and the central axis of the housing 10 through the position detection device 50 and obtain the current position according to the included angle.

In this way, the positional relationship between the lens assembly 20 and the housing 10 can be characterized by the angle, so as to determine the position of the lens assembly 20 .

Referring to FIG. 14, in some embodiments, after step S10 and before step S30, the control method further includes steps:

S20: determine whether the current position matches the target position;

If the current position does not match the target position, the process proceeds to step S30.

In some embodiments, the above-mentioned step S20 can also be implemented by the processor 60 . That is to say, the processor 60 is configured to determine whether the current position matches the target position and in the case that the current position does not match the target position, go to step S30.

Please refer to FIG. 15, further, in some embodiments, step S20 includes steps:

S21: determine whether the included angle satisfies the preset condition;

If not, it is determined that the current position does not match the target position, and step S30 is entered.

In some embodiments, the above-mentioned step S21 can also be implemented by the processor 60 . That is to say, the processor 60 is configured to determine whether the included angle satisfies the preset condition, and when the included angle portion satisfies the preset condition, determine that the current position does not match the target position, and further proceeds to step S30.

Specifically, in such an embodiment, the above-mentioned “determining whether the included angle satisfies the preset condition” can be understood as whether the optical axis X of the lens assembly 20 and the central axis of the housing 10 coincide, that is, whether the included angle is 0°, or It can be understood that whether the angle between the optical axis X of the lens assembly 20 and the central axis of the housing 10 is less than the preset angle, and if the angle is less than or equal to the preset angle, it will not affect the imaging quality of the shooting module 100 or Little impact on image quality.

Still further, referring to FIG. 16, in some embodiments, step S30 includes the steps of:

S31: Controlling the driving assembly 40 to drive the lens assembly 20 to rotate and swing within the preset space so that the included angle satisfies the preset condition.

In some embodiments, the above step S31 can also be implemented by the processor 60, that is, the processor 60 can be used to control the drive assembly 40 to drive the lens assembly 20 to rotate and swing in a preset space so that the included angle satisfies the preset condition .

In this way, when the included angle does not meet the preset condition, it means that the lens assembly 20 is shaken and shifted. At this time, the processor 60 can control the driving assembly 40 to drive the lens assembly 20 to rotate and swing so that the included angle satisfies the preset condition. In order to achieve anti-shake correction compensation and improve image quality.

An embodiment of the present application further provides a readable storage medium storing a computer program, when the computer program is executed by one or more processors, the control method of the photographing module 100 in any one of the foregoing embodiments is implemented.

For example, a computer program can be executed by a processor to implement a control method of the following steps:

S10: obtain the current position of the lens assembly 20;

In the description of this specification, reference to the terms "one embodiment," "some embodiments," "exemplary embodiment," "example," "specific example," or "some examples", etc. A particular feature, structure, material, or characteristic described by an embodiment or example is included in at least one embodiment or example of this application. In this specification, schematic representations of the above terms do not necessarily refer to the same embodiment or example. Furthermore, the particular features, structures, materials or characteristics described may be combined in any suitable manner in any one or more embodiments or examples.

Furthermore, any description of a process or method in the flowcharts or otherwise described herein may be understood to represent a module, segment of code comprising one or more executable instructions for performing a specified logical function or step of the process or in part, and the scope of the preferred embodiments of the present application includes additional implementations, wherein the functions may be performed out of the order shown or discussed, including performing the functions in a substantially simultaneous manner or in the reverse order depending upon the functions involved, This should be understood by those skilled in the art to which the embodiments of the present application belong.

Logic and/or steps represented in flowcharts or otherwise described herein, for example, may be considered an ordered listing of executable instructions for performing logical functions, may be embodied in any computer-readable medium, for use with, or in conjunction with, an instruction execution system, apparatus, or device (such as a computer-based system, a system including a processor 60, or other system that can fetch and execute instructions from an instruction execution system, apparatus, or device), device or equipment. For the purposes of this specification, a "computer-readable medium" can be any device that can contain, store, communicate, propagate, or transport the program for use by or in connection with an instruction execution system, apparatus, or apparatus. More specific examples (non-exhaustive list) of computer readable media include the following: electrical connections with one or more wiring (electronic devices), portable computer disk cartridges (magnetic devices), random access memory (RAM), Read Only Memory (ROM), Erasable Editable Read Only Memory (EPROM or Flash Memory), Fiber Optic Devices, and Portable Compact Disc Read Only Memory (CDROM). In addition, the computer readable medium may even be paper or other suitable medium on which the program may be printed, as it may be possible, for example, by optically scanning the paper or other medium, followed by editing, interpretation, or other suitable medium as necessary process to obtain the program electronically and then store it in computer memory.

It should be understood that portions of this application may be implemented in hardware, software, firmware, or a combination thereof. In the above-described embodiments, various steps or methods may be performed in software or firmware stored in memory and executed by a suitable instruction execution system. For example, if implemented in hardware, as in another embodiment, it may be implemented by any one or a combination of the following techniques known in the art: Discrete logic circuits, application specific integrated circuits with suitable combinational logic gates, Programmable Gate Arrays (PGA), Field Programmable Gate Arrays (FPGA), etc.

Those skilled in the art can understand that all or part of the steps carried by the above implementation method can be completed by instructing the relevant hardware through a program, and the program can be stored in a computer-readable storage medium, and the program can be executed when the program is executed. , including one or a combination of the steps of the method embodiment.

In addition, each functional unit in each embodiment of the present application may be integrated into one processing module, or each unit may exist physically alone, or two or more units may be integrated into one module. The above-mentioned integrated modules can be implemented in the form of hardware, and can also be implemented in the form of software function modules. If the integrated modules are executed in the form of software functional modules and sold or used as independent products, they may also be stored in a computer-readable storage medium.

The above-mentioned storage medium may be a read-only memory, a magnetic disk or an optical disk, and the like. Although the embodiments of the present application have been shown and described above, it should be understood that the above embodiments are exemplary and should not be construed as limitations to the present application. Embodiments are subject to variations, modifications, substitutions and variations.

Claims

A shooting module, characterized in that, comprising:

case;

lens assembly;

a connector, the connector includes a first sub-connector and a second sub-connector that are concentrically arranged, the first sub-connector is arranged on the periphery of the second sub-connector, and the second sub-connector can Rotating and swinging relative to the first sub-connector, the first sub-connector is fixedly connected to the housing, and the lens assembly passes through the second sub-connector and is fixedly connected to the second sub-connector; and

A driving assembly, the driving assembly is connected with the lens assembly, and the driving assembly is used for driving the lens assembly to rotate and swing in a preset space.
The shooting module according to claim 1, wherein the center of gravity of the lens assembly coincides with the center of gravity of the connecting member.
The photographing module according to claim 1, wherein the second sub-connector can swing relative to the first sub-connector around the center of the connector, and the drive assembly is used to drive the The lens assembly rotates and swings in a preset space around the center of the connecting piece.
The shooting module according to claim 3, wherein the swing angle range of the lens assembly rotating and swinging around the center of the connecting member in a preset space is approximately ±10 degrees.
The shooting module according to claim 1, wherein the second sub-connector is sleeved in the first sub-connector, and a first spherical surface is formed on the inner side of the first sub-connector, so A second spherical surface is formed on the outer side of the second sub-connector.
The photographing module according to claim 5, wherein the first spherical surface is in sliding contact with the second spherical surface.
The photographing module according to claim 5, wherein the connecting member is a joint bearing, the first connecting member is an outer ring of the joint bearing, and the second connecting member is an outer ring of the joint bearing. inner ring.
The shooting module according to claim 1, wherein the driving assembly and the lens assembly are arranged along the optical axis of the lens assembly, or the driving assembly is disposed along the circumference of the lens assembly.
The photographing module according to claim 1, wherein the driving assembly comprises a driving coil and a magnetic member, the driving coil and the magnetic member are disposed opposite to each other, and the driving coil is used to generate a The interaction force between the magnetic parts drives the lens assembly to rotate and swing in the preset space.
The photographing module according to claim 9, wherein one of the driving coil and the magnetic member is fixedly arranged on the lens assembly, and the other is fixedly arranged on the housing.
The photographing module according to claim 9, wherein the line connecting the geometric center of the driving coil and the center of the connecting member is substantially perpendicular to the plane on which the driving coil is installed.
The shooting module according to claim 9, wherein the driving assembly further comprises a mounting base, the mounting base is fixedly connected to the lens module, and the mounting base is used for fixing the driving coil .
The shooting module according to claim 12, wherein the mounting base is formed with a mounting surface, the mounting surface intersects with the optical axis of the lens assembly, and the driving coil is mounted on the mounting surface , the line connecting the geometric center of the driving coil and the center of the connecting piece is substantially perpendicular to the mounting surface.
The photographing module according to claim 13, wherein the number of the driving coils is at least three, and the mounting surfaces on which each of the driving coils are installed are different.
The photographing module according to claim 9, wherein the photographing module further comprises a position detection device, and the position detection device is used for detecting the relative position of the lens assembly and the housing.
The shooting module according to claim 15, wherein the driving coil is fixedly arranged on the lens assembly, the magnetic member is fixedly arranged on the casing, and the position detection device is arranged on the lens On the assembly, the position detection device is used for sensing the position of the magnetic member to detect the relative position of the lens assembly and the housing.
The photographing module according to claim 16, wherein the position detection device comprises a Hall sensor, and the Hall sensor is used for sensing the strength of a magnetic field to detect the relative relationship between the lens module and the housing. Location.
The photographing module according to claim 17, wherein the Hall sensor is arranged in the driving coil.
The photographing module according to any one of claims 1-18, wherein the photographing module is applied to a photographing device, and the photographing module is arranged in a casing of the photographing device.
A shooting module, characterized in that, comprising:

case;

lens assembly;

a connecting piece, the connecting piece includes a first sub-connecting piece and a second sub-connecting piece, the second sub-connecting piece can rotate and swing relative to the first sub-connecting piece, and the first sub-connecting piece is arranged on the The periphery of the second sub-connector, the first sub-connector is fixedly connected to the housing, and the lens assembly is fixedly connected to the second sub-connector;

The driving assembly is connected with the whole formed by the fixed connection of the lens assembly and the second sub-connector, and the driving assembly is used for driving the lens assembly to rotate and swing in a preset space.
A photographing device, characterized in that the photographing device comprises:

shell; and,

The photographing module according to any one of claims 1-20, wherein the photographing module is arranged on the casing.
The photographing device according to claim 21, wherein the photographing device comprises a motion camera.
An electronic device, comprising:

case;

functional parts;

a connector, the connector includes a first sub-connector and a second sub-connector that are concentrically arranged, the first sub-connector is arranged on the periphery of the second sub-connector, and the second sub-connector can Rotating and swinging relative to the first sub-connector, the first sub-connector is fixedly connected to the housing, and the functional component passes through the second sub-connector and is fixedly connected to the second sub-connector; and

A driving assembly is connected to the functional component, and the driving component is used for driving the functional component to rotate and swing in a preset space.
A control method for a shooting module, comprising:

Obtain the current position of the lens assembly, wherein the shooting module includes a housing, the lens assembly, a connector and a drive assembly, the connector includes a first sub-connector and a second sub-connector, the first sub-connector The sub-connector is arranged on the periphery of the second sub-connector, the second sub-connector can rotate and swing relative to the first sub-connector, the first sub-connector is fixedly connected to the housing, the The lens assembly is fixedly connected with the second sub-connector, and the driving assembly is used to drive the lens assembly to rotate and swing;

When the current position does not match the target position, the driving assembly is controlled to drive the lens assembly to rotate and swing to move the lens assembly to a target position, where the target position includes the optical axis of the lens assembly and the The position where the lens assembly is located when the central axis of the casing is coincident or the included angle between the optical axis of the lens assembly and the central axis of the casing is smaller than a preset angle.
The method for controlling a photographing module according to claim 24, wherein the acquiring the current position of the lens assembly comprises:

obtaining the included angle between the optical axis of the lens assembly and the central axis of the housing;

The current position is obtained according to the included angle.
The method for controlling a photographing module according to claim 25, wherein after the step of acquiring the current position of the lens assembly, in the case that the current position does not match the target position, Before the step of controlling the driving assembly to drive the lens assembly to rotate and swing to move the lens assembly to a target position, the control method of the shooting module further includes:

It is determined whether the current location matches the target location.
The method for controlling a photographing module according to claim 26, characterized in that comprising: said determining whether the current position matches a target position,

determining whether the included angle satisfies a preset condition;

If not, it is determined that the current position does not match the target position.
The method for controlling a photographing module according to claim 27, wherein controlling the drive assembly to drive the lens assembly to rotate and swing in a preset space to move the lens assembly to a target position comprises:

The driving assembly is controlled to drive the lens assembly to rotate and swing in a preset space so that the included angle satisfies the preset condition.
A readable storage medium storing a computer program, characterized in that, when the computer program is executed by one or more processors, the control method of the photographing module according to any one of claims 24-28 is implemented.