CN113438398B

CN113438398B - Camera module and electronic equipment

Info

Publication number: CN113438398B
Application number: CN202110683008.2A
Authority: CN
Inventors: 赵旭豪
Original assignee: Vivo Mobile Communication Hangzhou Co Ltd
Current assignee: Vivo Mobile Communication Hangzhou Co Ltd
Priority date: 2021-06-18
Filing date: 2021-06-18
Publication date: 2022-11-11
Anticipated expiration: 2041-06-18
Also published as: CN113438398A

Abstract

The application discloses a camera module and an electronic device; wherein, the module of making a video recording includes: the lens assembly, the image sensor and the driving assembly; the image sensor is arranged on the image side of the lens assembly; the driving assembly is connected with the lens assembly and/or the image sensor and is used for driving one of the lens assembly and the image sensor to incline relative to the other and/or driving one of the lens assembly and the image sensor to move towards or away from the other in a translation mode along the direction of an optical axis. The embodiment of the application provides a shooting scheme that can shift the axle for electronic equipment, when the great shot object of depth is shot to the module of making a video recording that utilizes electronic equipment, can improve the bad condition of focusing well, has the formation of image effect of preferred.

Description

Camera module and electronic equipment

Technical Field

This application belongs to terminal equipment technical field, concretely relates to module and electronic equipment make a video recording.

Background

Among the functions of electronic devices, a photographing function is one of important functions. Nowadays, photography of electronic devices such as smart phones plays an increasingly important role in daily life, and users have made more and higher demands on the shooting effect of the smart phone photography in different application scenes.

The camera is limited to the structure and the function of a camera of electronic equipment such as a traditional mobile phone, and the requirement of special photographing effect under partial scenes is difficult to meet. For example, when a subject with a relatively small volume is photographed, if the arrangement direction of the subject is not perpendicular to the optical axis of the lens, the object may be poorly focused by a too shallow depth of field, and thus, the near and far portions of the subject cannot be simultaneously imaged clearly. Increasing the depth of field requires reducing the aperture, which sacrifices resolution and is not a concern.

In the related art, in the currently disclosed tilt-shift photographing scheme for a camera module of an electronic device, a lens mainly moves along a plane parallel to an image sensor, but after imaging, a close position of a subject still can be clearly imaged, and a far position is blurred, that is, when a subject with a large depth is photographed, focusing is often poor.

Disclosure of Invention

The application aims at providing a camera module and electronic equipment to there is the bad problem of focusing when shooting the great object of shooing of depth in the camera module of solving current electronic equipment.

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:

a lens assembly;

an image sensor disposed on an image side of the lens assembly; and the number of the first and second groups,

the driving component is connected with the lens component and/or the image sensor and is used for driving one of the lens component and the image sensor to incline relative to the other and/or driving one of the lens component and the image sensor to move in a translation mode in the direction of the optical axis to move close to or away from the other.

In a second aspect, an embodiment of the present application provides an electronic device, which includes the camera module described in any one of the above.

In the embodiment of the application, either one of the lens assembly and the image sensor is controlled to be inclined relative to the other one, so that the camera module has a good focusing function, and a miniature photographing effect can be photographed; and, a focusing function can also be realized. The camera module that this application embodiment provided can improve the bad condition of focusing well when shooing the great object of shooing of depth, makes the far and near position of the object of shooing clear formation of image simultaneously, has the imaging effect of preferred.

Additional aspects and advantages of the present application will be set forth in part in the description which follows and, in part, will be obvious from the description, or may be learned by practice of the present application.

Drawings

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

fig. 1 is a schematic structural diagram of a camera module according to an embodiment of the present application;

fig. 2 is a second schematic structural diagram of a camera module according to an embodiment of the present disclosure;

fig. 3 is a third schematic structural diagram of a camera module according to an embodiment of the present application;

FIG. 4 is a fourth schematic structural diagram of a camera module according to an embodiment of the present disclosure;

fig. 5 is a fifth schematic structural view of a camera module according to an embodiment of the present application;

fig. 6 is a sixth schematic structural view of a camera module according to an embodiment of the present application;

FIG. 7 is a seventh schematic structural diagram of a camera module according to an embodiment of the present application;

fig. 8 is an eighth schematic structural diagram of a camera module according to an embodiment of the present application;

FIG. 9 is a ninth schematic view of a camera module according to an embodiment of the present disclosure;

FIG. 10 is a schematic representation of Samm's Law;

fig. 11 is a schematic view of the depth of field range when a common camera shoots;

FIG. 12 is a schematic view of the depth of field range after axis shift;

FIG. 13 is a schematic view of the depth of field range after reverse tilt shift;

FIG. 14 is a diagram illustrating a distance measuring module of an electronic device measuring a subject;

FIG. 15 is one of the schematic diagrams for calculating the shift angle;

fig. 16 is a second schematic diagram of the principle of calculating the shift angle.

Reference numerals:

1-lens assembly, 101-camera lens, 102-bracket, 103-optical axis, 104-lens plane, 2-image sensor, 201-imaging plane, 3-driving assembly, 301-housing, 302-bearing sliding piece, 303-first driving piece, 304-first elastic piece, 305-second elastic piece, 306-bearing plate, 307-rotating piece, 308-permanent magnet, 309-magnetic coil, 310-third elastic piece, 311-second driving piece, 4-focusing plane, 5-object to be shot.

Detailed Description

Reference will now be made in detail to the embodiments of the present application, examples of which are illustrated in the accompanying drawings, wherein like 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 drawings are exemplary only for the purpose of explaining the present application and are not to be construed as limiting the present application. All other embodiments obtained by a person of ordinary skill in the art based on the embodiments in the present application without making any creative effort belong to the protection scope of the present application.

The features of the terms first and second in the description and in the claims of the present application may explicitly or implicitly include one or more of such features. In the description of the present application, the meaning of "a plurality" is two or more unless otherwise specified. 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.

In the description of the present application, it is to be understood that the terms "central," "longitudinal," "lateral," "length," "width," "thickness," "upper," "lower," "front," "rear," "left," "right," "vertical," "horizontal," "top," "bottom," "inner," "outer," "clockwise," "counterclockwise," "axial," "radial," "circumferential," and the like are used in the orientations and positional relationships indicated in the drawings for convenience in describing the present application and to simplify the description, but are not intended to indicate or imply that the device or element so referred to must have a particular orientation, be constructed in a particular orientation, and be operated in a particular manner, and are not to be construed as limiting the present application.

In the description of the present application, it is to be noted that, unless otherwise explicitly specified or limited, the terms "mounted," "connected," and "connected" are to be construed broadly, e.g., as meaning either a fixed connection, a removable connection, or an integral connection; can be mechanically or electrically connected; they may be connected directly or indirectly through intervening media, or they may be interconnected between two elements. The specific meaning of the above terms in the present application can be understood in a specific case by those of ordinary skill in the art.

The following describes an image pickup module and an electronic apparatus according to an embodiment of the present application with reference to fig. 1 to 16.

The camera module provided by the embodiment of the application can be applied to various types of electronic equipment. The electronic device may be, but is not limited to, a smart phone, and the electronic device may also be an electronic product such as a tablet computer, a notebook computer, an electronic book, a smart wearable device, and the like, which is not limited in this application.

The camera module that this application embodiment provided, refer to fig. 1 to fig. 9 and show, it includes: a lens assembly 1, an image sensor 2 and a driving assembly; wherein the image sensor 2 is arranged on the image side of the lens assembly 1; the driving assembly is connected with the lens assembly 1 and/or the image sensor 2, and the driving assembly 3 is used for driving one of the lens assembly 1 and the image sensor 2 to tilt relative to the other and/or driving one of the lens assembly 1 and the image sensor 2 to move in a translational motion approaching or moving away from the other along the optical axis direction.

In the embodiment of the application, a tilt-shift shooting scheme is provided for a camera module of an electronic device, and by moving an optical axis of the lens assembly 1 and/or an angle of the image sensor 2, one of the lens assembly 1 and the image sensor 2 can be tilted relative to the other, so that the camera module has a good focusing function; meanwhile, the effect of miniature photography can be shot. In addition, the scheme of the application can also realize a focusing function.

The camera module that this application embodiment provided can improve the bad condition of focusing well when shooing the great object of shooing of depth, makes the far and near position of the object of shooing clear formation of image simultaneously to have the imaging effect of preferred.

The lens assembly 1 includes a camera lens 101 and a bracket 102, the camera lens 101 is disposed on the bracket 102 through a connecting member, and the bracket 102 is connected to the driving assembly 3.

The module scheme of making a video recording that this application embodiment provided, it mainly is when shooing the great object of shooing of depth to the camera of electronic equipment such as smart mobile phone, often has the bad problem of focusing to provide a shift shaft scheme of making a video recording based on schem's law, and it can improve the bad condition of focusing well.

For example, when shooting a reflective planar object (such as a mirror, reflective glass or an album), in order to avoid that some details cannot be seen due to reflection when a photographer shoots a reverse image or turns on a flash lamp, the current method needs to deflect the angle to shoot, and then stretch the object deformed by perspective into a normal proportion by an algorithm, so that the problem of poor focusing is solved, and the whole shot object cannot be shot clearly. In this case, the problem of poor focusing can be solved by using a shift shaft scheme.

Due to a general photographic optical imaging system, when the focusing distance is short, the depth of field is very shallow, and the poor focusing condition is more serious. For example, poor focusing condition occurs when the main shot surface (the portion that a photographer wants to be able to clearly image) of a small shot object is not parallel to the surface of the image sensor of the camera, wherein only the focused portion can be clearly imaged, and a portion far away from the main shot surface can be obviously out of focus, which finally results in that a closer portion of the shot object can be clearly imaged, and a portion far away from the main shot object is blurred, that is, the far and near portions cannot be clearly imaged at the same time, resulting in poor imaging quality.

Besides, besides the application scenes, a special shooting effect, namely 'micro landscape', can be provided by implementing the shift scheme. For example, a certain scene/landscape in reality is photographed out of the effect of the sand table toy.

In fact, the solution of the present application is based on the schemer law. Referring to fig. 10, the schem's law specifically means that if the lens plane 104 (the plane where the image pickup lens 101 in the lens assembly 1 is located) is not parallel to the imaging plane 201 (the plane where the image sensor 2 is located), and it is not assumed that the two planes intersect with each other on a straight line L, all the clearly imageable points fall on another plane, which is the focusing plane 4, and this plane also passes through the straight line L. That is, all three planes of the focus plane 4 (a plane where a point capable of being clearly imaged is located, which is also referred to as an object plane), the lens plane 104, and the imaging plane 201 intersect at a straight line, i.e., an intersection point (line) X in fig. 11.

Under normal conditions, the lens plane 104 is parallel to the imaging plane 201, and the focusing plane 4 is also parallel to the lens plane 104, on the basis of which the front and rear limits of the depth of field range are naturally also parallel to the lens plane 104. As shown in fig. 11, it can be seen from fig. 11 that the reason for the poor focusing of the subject 5 is: only a part of the focus plane 4, i.e. the object plane, can be imaged sharp in the depth of field range, whereas parts outside the depth of field range, e.g. further away than the back depth of field plane, are imaged blurred. That is, a closer portion of the subject can be clearly imaged, and a portion at a longer distance is blurred.

When the lens plane 104 is not parallel to the imaging plane 201, the focusing plane 4, the lens plane 104, and the imaging plane 201 intersect at the same position, and the front and rear limits of the depth of field range also intersect at the same position, and at this time, the depth of field range is a wedge-shaped space, and in this case, as shown in fig. 12, the distance of the image formed by the focusing plane is clear. Namely, the far and near parts of the shot object can be clearly imaged at the same time, so that the whole shot picture has higher definition and better imaging quality.

It should be noted that the shift scheme is not limited to the above-mentioned usage, and there is also a usage of reverse shift, which may cause the effect that the projection range of the depth of field on the focusing plane 4 (also called object plane) is extremely shallow. As shown in fig. 13, in this case, the clear range of the object 5 is further narrowed, and particularly when a long-distance view is taken, an ultra-shallow depth-of-field effect similar to that of a shot object appears, so that a person can visually mistakenly take a picture of a nearby sand table model, and an effect of taking a "miniature landscape" can be achieved.

Through the description of the above principle, the scheme of the present application designs a shift scheme, and the shift effect can be realized by moving the angle of the optical axis of the camera lens 101 or moving the angle of the image sensor (so that it is no longer perpendicular to the optical axis).

It should be noted that the scheme of this application can cooperate the range finding module that has in the electronic equipment such as smart mobile phone to implement. The distance measurement module is, for example, a structured light measurement system or a Time of flight (TOF) algorithm in a smart phone, and the principles of these distance measurements are common knowledge of those skilled in the art, and will not be described in detail herein.

For example, the system first determines whether the user has started panning:

if the shift shaft is started, the focusing mode or the shooting micro mode is actually selected;

if the focusing mode is turned on, the user selects the focusing point 1 (starting point a) and the focusing point 2 (starting point B) of the object 5, and after the selection is completed, the distance AT between the focusing point 1 (starting point a) and the plane where the main body of the electronic device is located and the distance BT between the focusing point 2 (starting point B) and the plane where the main body of the electronic device is located are respectively measured by the distance measuring module (T) on the electronic device, as shown in fig. 14. The & lt ATA & gt can be calculated through the field of view occupied by the starting point A in the imaging of the distance measuring lens, and meanwhile, the distance measuring module can measure the distance AT, then AA "= AT × sin & lt ATA", AA' = A "T = AT × cos & lt ATA", and BB "= BT × sin & lt BTB" T = BT × cos & lt BTB "can be obtained in the same way. Then, a shift angle (i.e., an angle at which one of the lens assembly 1 and the image sensor 2 is inclined with respect to the other) is calculated.

Moreover, the system also needs to detect the angle at which one of the lens assembly 1 and the image sensor 2 is currently tilted relative to the other:

if the inclined angle is matched with the calculated shift angle, shooting is carried out, and before shooting is not finished, distance measurement calculation is continuously carried out and whether the inclined angle of one of the lens assembly 1 and the image sensor 2 relative to the other is matched with the calculated shift angle or not is judged;

if the current inclination angle of one of the lens assembly 1 and the image sensor 2 relative to the other does not match the calculated shift angle, the inclination angle needs to be adjusted, and the distance calculation is performed again, and if the current inclination angle does not match the calculated shift angle, the operation is continued.

In addition, if the starting mode is the miniature mode, the user can manually adjust the shift angle to obtain a better shooting effect.

In the embodiment of the present application, there are two different schemes, one of which is to implement the shift by moving the lens assembly 1.

As shown in fig. 14, the distance difference AC = BB '-AA' in fig. 15 can be obtained from the data calculated in fig. 14, and therefore ≈ BAC can be calculated, and then the imaging plane 201 intersects the focusing plane 4 in a straight line, and is projected as a point X in fig. 15, and it can be known that: the angle is AXO =180 DEG-BAC, the distance A ' X = AA ' × tan BAC between the projection A ' of the starting point A on the imaging plane 201 and the point X, and since the distance from the point A ' to the point O is equal to the distance between the lens assembly 1 and the distance measuring module plus AA ', the angle between the lens plane where the rotating shaft L of the lens assembly 1 is located and the imaging plane is OXL = arcsin (OL/OX), and the angle is the angle of the lens assembly 1 inclined relative to the image sensor 2.

In an alternative example of the present application, as shown in fig. 1 to 4, the driving assembly 3 comprises a housing 301 and at least three bearing sliders 30 disposed inside the housing 301; each of the bearing sliding pieces 302 is connected to the housing 301 through a first driving piece 303 and a first elastic piece 304, the at least three bearing sliding pieces 302 are enclosed to form an accommodating space, the lens assembly 1 is movably disposed in the accommodating space and abutted to each of the bearing sliding pieces 302, and the lens assembly 1 is connected to the housing 301 through at least three second elastic pieces 305.

In the above alternative example, the driving assembly 3 can be used to drive the lens assembly 1 (mainly the camera lens 101 therein) to tilt at an angle relative to the image sensor 2, and the lens assembly 1 can move in a translational motion in the optical axis direction to approach or move away from the image sensor 2. Each of the bearing sliding parts 302 can drive the lens assembly 1 to deflect and/or move in a translation manner under the driving of the connected first driving part 303, so as to achieve a shift effect, thereby improving the problem of poor focusing.

In an alternative example of the present application, referring to fig. 4, each of the first driving member 303, each of the first elastic member 304, and each of the second elastic member 305 are uniformly distributed on an edge area of the lens assembly 1. The above components are prevented from touching the camera lens 101 in the lens assembly 1 or blocking the lens from entering light.

Wherein, the bearing slide piece 302 is provided with at least three. So that the objective of tilting the lens assembly 1 in any direction can be achieved.

Wherein, the second elastic member 305 is also provided with at least three. So that the balance of the lens assembly 1 can be maintained.

For example, referring to fig. 4, four bearing sliders 302 are provided, the four bearing sliders 302 are uniformly distributed in the edge region of the lens assembly 1, and each bearing slider 302 is connected to the housing 301 through the first driving member 303 and the first elastic member 304; also, four second elastic members 305 are provided, the four second elastic members 305 are uniformly distributed in the edge area of the lens assembly 1, one end of each second elastic member 305 is connected to the back surface of the lens assembly 1, and the other end of each second elastic member 305 is connected to the housing 301.

It should be noted that the number of the load sliding members 302 and the number of the second elastic members 305 may be matched. The number of the load sliding member 302 and the second elastic member 305 can be flexibly adjusted by those skilled in the art according to the specific needs, but at least three are provided.

As shown in fig. 1 to 3, the first driving member 303 may be a shape memory alloy member, for example. Under the condition of power supply, each shape memory alloy piece can be subjected to telescopic deformation to drive each bearing sliding piece 302 to jointly drive the lens assembly 1 to incline or move relative to the image sensor 2, wherein the movement is that the lens assembly 1 translates towards a direction close to the image sensor 2 or the lens assembly 1 translates towards a direction far away from the image sensor 2.

The first elastic member 304 may be a spring, for example. The first elastic member 304 may be used to reposition the corresponding carriage slide 302.

The second elastic member 305 may be a spring, for example. The provision of the second resilient member 305 helps to maintain the balance of the lens assembly 1.

The surface of the bearing sliding piece 302 contacting with the lens assembly 1 is an inclined plane 3021.

Alternatively, the surface of the bearing sliding member 302 contacting the lens assembly 1 is a plane, and an inclined edge is disposed on the plane.

The lens assembly 1 will deflect under the effect of the inclined surface (or the inclined edge) of the bearing sliding piece 302 to generate the inclination relative to the image sensor 2, as shown in fig. 2.

It should be noted that, in the present embodiment, the specific shape of the bearing slider 302 is not limited, but the surface of the bearing slider contacting the lens assembly 1 needs to be an inclined surface or an inclined edge.

In an initial state, referring to fig. 1, a pulling force of each second elastic member 305 (e.g., a spring) on the lens assembly 1 is balanced with a supporting force of each bearing sliding member 302 on the lens assembly 1; meanwhile, the pulling force of each first driving member 303 (a shape memory alloy member) to each load sliding member 302 and the pushing force of each first elastic member 304 to each first driving member 303 are balanced.

Referring to fig. 2, when the shape memory alloy member on one side is extended and the shape memory alloy member on the other side is shortened, the lens assembly 1 is shifted by the inclined surface of the bearing sliding member 302, and when the tension of each shape memory alloy member after stopping moving is balanced with the tension of each second elastic member 305, the lens plane where the lens assembly 1 is located is no longer parallel to the imaging plane where the image sensor 2 is located, so that the axis shifting effect is achieved.

In addition to the above-mentioned shift axis, referring to fig. 3, the length of each shape memory alloy member is equal to the length of each shape memory alloy member, so that the distance between the lens plane where the lens assembly 1 is located and the imaging plane where the image sensor 2 is located can be changed, thereby implementing the function of auto-focusing.

For example, when each shape memory alloy member is extended by the same length, the distance between the lens plane where the lens assembly 1 is located and the imaging plane where the image sensor is located can be increased.

For another example, when each shape memory alloy member is shortened by the same length, the distance between the lens plane where the lens assembly 1 is located and the imaging plane where the image sensor is located can be reduced.

According to the camera module provided by the embodiment of the application, the lens assembly 1 can be driven by the driving assembly 3 to incline relative to the image sensor 2. The focusing function can be realized, and the effect of shooting miniature photography can also be realized. Meanwhile, as a general camera module, it can normally use an auto-focus function (see fig. 3).

In the embodiment of the present application, a further scheme is to realize a shift effect by moving the image sensor 2, that is, by moving the angle of the imaging plane where the image sensor 2 is located, the optical axis of the lens component 1 may no longer be perpendicular to the imaging plane where the image sensor 2 is located.

The distance difference AC = AA '-BB' in fig. 16 and the distance difference BC = BB "-AA" in the direction parallel to the lens plane can be obtained from the data calculated in fig. 14, thereby calculating ≤ BAC, when the imaging plane and the lens plane intersect on a straight line, the projection point in the figure is X, and it is known that ≤ AXO =180 ° -BAC, the distance a 'X = AA' × tan BAC between the projection a 'of the point a on the imaging plane and X, since the distance between the point a' and the point O is equal to the distance between the tilt camera and the distance measurement module plus AA ≤ OXS = arctan (OS/OX), which is the angle between the imaging plane where the rotation axis S of the image sensor 2 is located and the lens plane, as shown in fig. 16.

In an alternative example of the present application, referring to fig. 5 and 6, the driving assembly 3 includes a carrier plate 306, and the carrier plate 306 is disposed on a rear side of the image sensor 2; a rotating part 307 is arranged at the center of the bearing plate 306, a concave part is arranged on the back surface of the image sensor 2, the rotating part 307 is partially arranged in the concave part, and a gap is arranged between the bearing plate 306 and the image sensor 2; at least three permanent magnets 308 are arranged in the edge region of the carrier plate 306, magnetic coils 309 corresponding to the permanent magnets 308 are arranged on the back surface of the image sensor 2, and the image sensor 2 can deflect in any direction relative to the carrier plate 306 under the condition that the magnetic coils 309 are energized.

That is to say, in the embodiment of the present application, it may also be designed that the driving component 3 controls the image sensor 2 to deflect, so that the image sensor 2 tilts with respect to the lens assembly 1 by a certain angle, and at this time, an imaging plane where the image sensor 2 is located may not be perpendicular to the optical axis of the lens assembly 1 any more.

The rotating member 307 is a ball joint or a ball.

A concave portion (e.g., a concave pit) wrapping the rotating member 307 is disposed in the center of the back surface of the image sensor 2, and the rotating member 307 can rotate freely, so as to drive the image sensor 2 to rotate freely.

A plurality of magnetic coils 309 are disposed around the back surface of the image sensor 2, and the magnitude and direction of magnetism can be controlled by controlling the magnitude and direction of current flowing into each of the magnetic coils 309. A plurality of permanent magnets (e.g., magnets) 308 are disposed on the carrier plate 306, and the magnetic poles are oriented uniformly.

Referring to fig. 5, when there is no current flowing through each of the magnetic coils 309, there is no force between each of the permanent magnets 308 on the carrier plate 306 and each of the magnetic coils 309, and at this time, the optical axis 103 of the camera lens 101 in the lens assembly 1 is perpendicular to the imaging plane 201 of the image sensor 2.

Referring to fig. 6, when the magnitude and the direction of the current flowing through the magnetic coil 309 are different at different positions, the direction and the magnitude of the force between the magnetic coil 309 and the corresponding permanent magnet 308 are different, so that under the condition that the forces on the two sides are unbalanced, the image sensor 2 will deflect, and the imaging plane 201 where the image sensor is located is no longer perpendicular to the optical axis 103 of the camera lens 101 in the lens assembly 1, thereby achieving the purpose of moving the axis.

Wherein, the number of the permanent magnets 308 is at least three, and at least three permanent magnets 308 are uniformly distributed in the edge region of the carrier plate 306, which helps to realize any angle of deflection of the image sensor 2. The number of the magnetic coils 309 is matched with the number of the permanent magnets 308.

The permanent magnet 308 and the magnetic coil 309 need to be provided with at least three pairs to be able to realize full angle shift. The number of the permanent magnets 308 and the magnetic coils 309 can be flexibly set by those skilled in the art according to specific needs.

The image sensor 2 is moved to shift the axis, so that a focusing function can be realized, and a 'miniature photography' effect can be realized.

And, because the position of the lens assembly 1 is fixed, the whole screen printing windowing size can be reduced, which is beneficial to making the appearance more beautiful.

The above-mentioned manner of moving the image sensor 2 to implement the shift axis may be modified by other driving manners, since the position of the lens assembly 1 is relatively fixed, which sacrifices the auto-focusing function of the lens assembly 1 in the normal use mode to some extent.

In an alternative example of the present application, referring to fig. 7 to 9, the driving assembly 3 includes a housing 301, the image sensor 2 is disposed in the housing 301, a back edge region of the image sensor 2 is connected to the housing 301 through at least three third elastic members 310, and an edge of the image sensor 2 is connected to the housing 301 through at least three second driving members 311.

The second driving member 311 is, for example, a shape memory alloy member.

One end of each shape memory alloy piece is connected with the edge of the image sensor 2, and the other end of each shape memory alloy piece is connected with the shell 1. Under the condition of power supply, each shape memory alloy piece can be subjected to telescopic deformation so as to drive the image sensor 2 to incline or move relative to the lens assembly 1, wherein the movement is the translation of the image sensor 2 towards the direction close to the lens assembly 1 or the translation of the image sensor 2 towards the direction far away from the lens assembly 1.

The third elastic member 310 may be a spring, for example.

That is, a plurality of Shape Memory Alloy (SMA) members are connected to the edge of the image sensor 2, a plurality of springs are connected to the back of the image sensor 2, the SMA members stretch and contract to provide a pulling force to the image sensor 2, and the springs provide opposite pulling forces, when the SMA members and the SMA members are balanced, an imaging plane 201 where the image sensor 2 is located is perpendicular to the optical axis 103 of the lens assembly 1, as shown in fig. 7.

When the shape memory alloy member on one side contracts and the shape memory alloy member on the other side extends, the image sensor 2 will incline, and at this time, the imaging plane 201 where the image sensor 2 is located is no longer perpendicular to the optical axis 103 of the lens assembly 1, so as to achieve the shift effect, as shown in fig. 8.

When the shape memory alloy pieces contract or extend with the same length, the image sensor 2 can be translated towards a direction away from the lens assembly 1 or the image sensor 2 can be translated towards a direction close to the lens assembly 1, and an automatic focusing function can be realized.

It should be noted that at least three of the second driving element 311 and the third elastic element 310 are also provided, so that full-angle shaft shifting can be realized.

The structure of the driving component 3 can push the image sensor to realize shaft shift, focus combining function and miniature photography function. And, in the case of turning on the tilt-shift mode, the focusing function of the lens assembly 1 can be realized by translating the image sensor 2, that is, the lens assembly 1 can be used as a normal camera to normally use the focusing function thereof. And because the position of the lens component 1 is fixed, the size of the whole screen printing windowing can be reduced, and the appearance of the product is more attractive.

In an alternative example of the present application, referring to fig. 1 to 3 and fig. 5 to 9, the lens assembly 1 includes a camera lens 101 and a holder 102, the camera lens 101 is disposed on the holder 102 through a connector, and the holder 102 is connected to the driving assembly 3.

The holder 102 can be used as a carrier for carrying the camera lens 101.

The connection mode of the bracket 102 and the camera lens 101 can be a snap joint, a threaded connection, a glue dispensing and other modes, and the application does not limit the connection mode.

The embodiment of the application also provides electronic equipment which comprises the camera module.

The electronic device may be, but is not limited to, a smart phone, and the electronic device may also be an electronic product such as a tablet computer, a notebook computer, an electronic book, a smart wearable device, and the like, which is not limited in this application.

Other configurations and operations of the electronic device according to the embodiments of the present application are known to those of ordinary skill in the art and will not be described in detail herein.

In the description of the present specification, reference to the description of "one embodiment," "some embodiments," "an illustrative embodiment," "an example," "a specific example," or "some examples" or the like means that a particular feature, structure, material, or characteristic described in connection with the embodiment or example is included in at least one embodiment or example of the present application. In this specification, the schematic representations of the terms used above 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.

While embodiments of the present application have been shown and described, it will be understood by those of ordinary skill in the art that: various changes, modifications, substitutions and alterations can be made to the embodiments without departing from the principles and spirit of the application, the scope of which is defined by the claims and their equivalents.

Claims

1. The utility model provides a module of making a video recording, is applied to electronic equipment, its characterized in that includes:

a lens assembly (1);

an image sensor (2), the image sensor (2) being disposed on an image side of the lens assembly (1); and (c) a second step of,

a drive assembly (3), the drive assembly (3) being connected with the lens assembly (1) and/or the image sensor (2);

the driving assembly (3) is used for driving one of the lens assembly (1) and the image sensor (2) to be inclined relative to the other so that the optical axis of the lens assembly (1) is not perpendicular to the imaging plane of the image sensor (2);

or the driving component (3) is used for driving one of the lens component (1) and the image sensor (2) to be inclined relative to the other so that the optical axis of the lens component (1) is not perpendicular to the imaging plane where the image sensor (2) is located any more, and driving one of the lens component (1) and the image sensor (2) to move towards or away from the other in the direction of the optical axis in a translation manner;

the camera module comprises a focusing mode

Acquiring a focus A and a focus B of an object (5) to be photographed;

respectively measuring the distance AT of the focus A and the distance BT of the focus B by a distance measuring module T on the electronic equipment; acquiring ≈ ATA "through a view field occupied by the combined focus A in imaging of the camera module, and acquiring AA" = AT × sin ≈ ATA ", AA '= A" T = AT × cos ℃ ", acquiring BB" = BT × sin = BTB ", BB' = B" T = BT × cos ℃ "BTB" according to the distance BT; wherein A 'is a projection of the convergent point A on an imaging plane where the image sensor (2) is located, B' is a projection of the convergent point B on the imaging plane where the image sensor (2) is located, A 'is a projection of the convergent point A on a horizontal plane, and B' is a projection of the convergent point B on the horizontal plane; a 'B' is the projection distance of the AB on the horizontal plane;

obtaining a tilt angle from the AA ', BB ' and BB ', the tilt angle being indicative of an angle at which one of the lens assembly (1) and the image sensor (2) is tilted relative to the other.

2. The camera module according to claim 1, characterized in that the drive assembly (3) comprises a housing (301) and at least three bearing slides (302) arranged within the housing (301);

each bearing sliding piece (302) is connected with the shell (301) through a first driving piece (303) and a first elastic piece (304) respectively;

the at least three bearing sliding pieces (302) are arranged in an enclosing mode to form an accommodating space, the lens assembly (1) is movably arranged in the accommodating space and is abutted to the bearing sliding pieces (302), and the lens assembly (1) is connected with the shell (301) through at least three second elastic pieces (305).

3. The camera module according to claim 2, wherein the first driving member (303) is a shape memory alloy member, and the first elastic member (304) and the second elastic member (305) are both springs.

4. A camera module according to claim 2, characterized in that the surface of the carrier slider (302) abutting against the lens arrangement (1) is a ramp (3021).

5. The camera module according to claim 1, characterized in that the drive assembly (3) comprises a carrier plate (306), the carrier plate (306) being arranged on a rear side of the image sensor (2);

a rotating part (307) is arranged at the center of the bearing plate (306), a concave part is arranged on the back surface of the image sensor (2), the rotating part (307) is partially arranged in the concave part, and an interval is arranged between the bearing plate (306) and the image sensor (2);

at least three permanent magnets (308) are arranged in the edge area of the bearing plate (306), and magnetic coils (309) corresponding to the permanent magnets (308) are arranged on the back surface of the image sensor (2); when the magnetic coil (309) is energized, the image sensor (2) can be deflected in any direction relative to the carrier plate (306).

6. The camera module according to claim 5, wherein the rotational member (307) is a ball joint or a ball bearing.

7. The camera module according to claim 1, characterized in that the drive assembly (3) comprises a housing (301), the image sensor (2) is arranged in the housing (301), a rear edge region of the image sensor (2) is connected to the housing (301) by at least three third elastic members (310), and an edge of the image sensor (2) is connected to the housing (301) by at least three second driving members (311).

8. The camera module according to claim 7, wherein the second driving member (311) is a shape memory alloy member and the third elastic member (310) is a spring.

9. Camera module according to claim 1, characterized in that the lens assembly (1) comprises a camera lens (101) and a holder (102), the camera lens (101) being arranged on the holder (102) by means of a connection, the holder (102) being connected to the drive assembly (3).

10. An electronic device comprising the camera module of any one of claims 1-9.