CN109348104B

CN109348104B - Camera module, electronic equipment and shooting method

Info

Publication number: CN109348104B
Application number: CN201811276329.5A
Authority: CN
Inventors: 周耀敏
Original assignee: Vivo Mobile Communication Hangzhou Co Ltd
Current assignee: Vivo Mobile Communication Hangzhou Co Ltd
Priority date: 2018-10-30
Filing date: 2018-10-30
Publication date: 2021-01-08
Anticipated expiration: 2038-10-30
Also published as: CN109348104A

Abstract

The invention provides a camera module, electronic equipment and a shooting method; wherein, the camera module is applied to electronic equipment, includes: the lens module is arranged in a light inlet channel of the photosensitive chip and used for collecting light and projecting the collected light onto the photosensitive chip; the focal length adjusting part realizes focal length adjustment through deformation. The technical scheme provided by the invention solves the problem that the existing camera module is large in size.

Description

Camera module, electronic equipment and shooting method

Technical Field

The invention relates to the technical field of communication, in particular to a camera module, electronic equipment and a shooting method.

Background

At present, most of electronic devices are provided with camera modules to realize shooting functions such as shooting and video recording. The existing camera module generally implements an Auto Focus function by an AF (Auto Focus) drive. However, the AF drive requires a large installation space, and the conventional camera module has a problem of a large size, which is disadvantageous for the development of the electronic device toward the thinning.

Disclosure of Invention

The embodiment of the invention provides a camera module, electronic equipment and a shooting method, and aims to solve the problem that the existing camera module is large in size.

In order to solve the technical problem, the invention is realized as follows:

in a first aspect, an embodiment of the present invention provides a camera module applied to an electronic device, including:

a photosensitive chip; and the number of the first and second groups,

the lens module comprises a focal length adjusting component, is arranged in the light inlet channel of the photosensitive chip and is used for collecting light and projecting the collected light onto the photosensitive chip; the focal length adjusting part realizes focal length adjustment through deformation.

In a second aspect, an embodiment of the present invention further provides an electronic device, including the camera module according to the first aspect.

In a third aspect, an embodiment of the present invention further provides a shooting method, including:

acquiring the definition of a first image acquired by a camera module;

and under the condition that the definition of the first image is not matched with the preset definition, controlling the focal length adjusting component to deform so as to realize focal length adjustment, so as to obtain a second image conforming to the preset definition.

In a fourth aspect, an embodiment of the present invention further provides an electronic device, including:

the first acquisition module is used for acquiring the definition of a first image acquired by the camera module;

and the first control module is used for controlling the focal length adjusting component to deform to realize focal length adjustment under the condition that the definition of the first image is not matched with the preset definition so as to obtain a second image conforming to the preset definition.

In a fifth aspect, an embodiment of the present invention further provides an electronic device, which includes a processor, a memory, and a computer program stored on the memory and executable on the processor, and when executed by the processor, the electronic device implements the steps of the shooting method according to the third aspect.

In a sixth aspect, the present invention further provides a computer-readable storage medium, on which a computer program is stored, which, when executed by a processor, implements the steps of the shooting method as described in the third aspect.

In the embodiment of the invention, the focal length adjusting part realizes focal length adjustment through deformation, and compared with the traditional method of adjusting the focal length by changing the distance between the lens group and the chip, the camera module provided by the embodiment of the invention does not need to be installed and driven to drive the lens group to realize focal length adjustment, so that the space in the camera module is saved, the overall size of the camera module is further reduced, the camera module is more convenient to install in electronic equipment, and the development of the electronic equipment towards thinning is facilitated.

Drawings

In order to more clearly illustrate the technical solutions of the embodiments of the present invention, the drawings needed to be used in the description of the embodiments of the present invention will be briefly introduced below, and it is obvious that the drawings in the following description are only some embodiments of the present invention, and it is obvious for those skilled in the art that other drawings can be obtained according to these drawings without inventive exercise.

Fig. 1 is a structural diagram of a camera module according to an embodiment of the present invention;

FIG. 2 is a block diagram of the focus adjustment assembly of FIG. 1 as a T-lens assembly;

FIG. 3 is a block diagram of the drive module of FIG. 1 as a MEMS mechanism;

FIG. 4 is a block diagram of the capacitor assembly of FIG. 3;

FIG. 5 is a block diagram of the first capacitor plate and the second capacitor plate of FIG. 4;

fig. 6 is a flowchart of a photographing method according to an embodiment of the present invention;

FIG. 7 is a block diagram of an electronic device according to an embodiment of the present invention;

fig. 8 is a block diagram of a mobile terminal according to an embodiment of the present invention.

Detailed Description

The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are some, not all, embodiments of the present invention. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.

Referring to fig. 1, fig. 1 is a structural diagram of a camera module according to an embodiment of the present invention, where the camera module is applied to an electronic device, such as a mobile terminal like a smart phone, a tablet computer, an intelligent wearable device, or a product like a digital camera. The camera module comprises a photosensitive chip 20 and a lens module 10, the lens module 10 comprises a focal length adjusting part 11, and the focal length adjusting part 11 is arranged in a light inlet channel of the photosensitive chip 20 and is used for collecting light and projecting the collected light onto the photosensitive chip 20; the focus adjustment member 11 achieves focus adjustment by being deformed.

In the embodiment of the present invention, the focal length adjusting component 11 is located in the light inlet channel of the photosensitive chip 20, and can adjust the focal length by deformation, compared with the conventional method of adjusting the focal length by changing the distance between the lens group and the chip, the camera module provided in the embodiment of the present invention does not need to install a driver to drive the lens group to adjust the focal length, thereby saving the space in the camera module, further reducing the overall size of the camera module, facilitating the installation of the camera module in the electronic device, and facilitating the development of the electronic device toward thinning.

In a specific embodiment, the focal length adjustment component 11 may be electrically connected to a processor of the electronic device, and when the electronic device is powered on and heated, the focal length adjustment component 11 expands and deforms due to heating, so as to achieve focal length adjustment; alternatively, the focal length adjusting component 11 may be made of a soft material, and can deform under the condition of stress to adjust the focal length; for example, in one embodiment of the present invention, the focal length adjusting part 11 is a T-lens (Tunable-lens) component.

Specifically, referring to fig. 2, the T-lens assembly includes: a first transparent panel 111, a second transparent panel 112, an intermediate transparent member 113 interposed between the first transparent panel 111 and the second transparent panel 112, and an urging member 114; the intermediate transparent member 113 is deformed by a force, and the force applying member 114 is configured to apply a force to the intermediate transparent member 113 through at least one of the first transparent panel 111 and the second transparent panel 112 to deform the intermediate transparent member 113.

In this embodiment, the middle transparent member 113 is made of a polymer, so that the light can penetrate through the middle transparent member and can deform. When the periphery of the middle transparent member 113 is pressed, the middle part is extruded to protrude outwards to form a convex lens, thereby playing a role of focusing light. It will be appreciated that the amount of deformation of the intermediate transparent member 113 is related to the amount of focusing power. For example, the force application member 114 may be electrically connected to a processor of the electronic device, and the force applied by the force application member 114 is adjusted by adjusting the current, that is, the force applied by the force application member 114 on the first transparent panel 111 or the second transparent panel 112 is also adjusted, or when the force application member 114 is disposed on both the first transparent panel 111 and the second transparent panel 112, the force applied by the force application member 114 can be adjusted on both the first transparent panel 111 and the second transparent panel 112, so as to adjust the force applied by the middle transparent member 113, thereby controlling the deformation degree of the middle transparent member 113.

For example, as shown in fig. 2, the force application member 114 is disposed at an edge of the first transparent panel 111 opposite to the middle transparent member 113, and the force application member 114 is configured to deform the edge of the first transparent panel 111 to approach the second transparent panel 112, so as to press the middle transparent member 113 to deform. Specifically, the force application member 114 may be a piezoelectric ceramic, and the piezoelectric ceramic is electrically connected to a processor of the electronic device. The edge of the first transparent panel 111 on the side opposite to the middle transparent member 113 may be provided with a plurality of piezoelectric ceramics, and the plurality of piezoelectric ceramics are arranged at equal intervals, so that the edge of the first transparent panel 111 is uniformly stressed. After the piezoelectric ceramics are electrified, the piezoelectric ceramics generate pressure on the edge of the first transparent panel 111, so that the edge of the first transparent panel 111 is pressed to be close to the second transparent panel 112, and the middle part of the first transparent panel 111 protrudes upwards to form a spherical surface; like this, also make the part that is close to first transparent panel 111 of middle transparent 113 receive the oppression and extrude the middle part to first transparent panel 111 protrudingly, middle transparent 113 deformation becomes thick, the thin convex lens in edge in the middle of one side to can refract light and adjust in order to realize the focus. It is understood that the second transparent panel 112 is not deformed to support the intermediate transparent member 113, thereby protecting the intermediate transparent member 113 from being damaged by external objects.

Or the force application part is arranged on the edge of one side of the middle transparent part on the back of the second transparent panel, and the force application part is used for enabling the edge of the second transparent panel to deform and approach the first transparent panel so as to press the middle transparent part to deform. The force application piece can be piezoelectric ceramics, and the piezoelectric ceramics are electrically connected with a processor of the electronic equipment. It can be understood that, in this embodiment, only the setting positions of the piezoelectric ceramics are different, and the middle transparent member can be deformed to implement the focal length adjustment in the same manner, and the deformation principle of the second transparent panel and the middle transparent member may refer to the above embodiments, and the specific implementation manner is not described herein again.

Or the force application part is arranged on one side edge of the middle transparent part, which is back to the middle transparent part, of the first transparent panel and one side edge of the middle transparent part, which is back to the middle transparent part, of the second transparent panel, and is used for applying pressure to the first transparent panel and the second transparent panel after being electrified to press the first transparent panel and the second transparent panel to deform, so that the middle transparent part is extruded to deform to form the convex lens, and the focal length adjustment is realized.

It should be noted that, as shown in fig. 1, the lens module 10 in the embodiment of the invention is further provided with a prism 13 and a lens group 12. The prism 13 is mainly used for reflecting light, and the light enters from one side of the prism 13, and enters the lens group 12 or the focal length adjusting part 11 after being reflected by the inclined plane. The lens assembly 12 is used for transmitting light, and mainly functions to eliminate aberration of the imaging light in the optical system and improve image quality. The focal length adjusting component 11 may be disposed on a side of the lens group 12 facing the prism 13, or may be disposed on a side of the lens group 12 facing away from the prism 13; alternatively, when the lens group 12 includes at least two lenses, the focal length adjusting component 11 may be disposed between any two lenses of the at least two lenses. In this way, the arrangement of the focus adjusting part 11 is made more flexible.

Referring to fig. 1 again, in the embodiment of the present invention, the camera module further includes a driving module 30, the photosensitive chip 20 is connected to the driving module 30, and the driving module 30 is used for driving the photosensitive chip 20 to move so as to achieve optical anti-shake. The driving module 30 may be a driving motor wrapping the periphery of the photosensitive chip 20, and the driving motor is electrically connected to a processor of the electronic device, and can be operated under the control of the processor to drive the photosensitive chip 20 to move, so as to realize optical anti-shake. It should be noted that the driving module 30 is configured to drive the photosensitive chip 20 to move in a first plane, which is a plane perpendicular to the light.

In a specific embodiment, the driving module 30 may be a Micro-Electro-Mechanical System (MEMS) mechanism. Specifically, referring to fig. 3 and 4, the MEMS mechanism includes: a base plate (not shown), a fixed frame 31, a movable frame 32, and a capacitor assembly 33.

The substrate is fixed in the electronic equipment, and a microprocessor electrically connected with a processor of the electronic equipment is arranged on the substrate; the microprocessor can control the movable frame 32 to move to drive the photosensitive chip 20 to move.

The fixing frame 31 is fixed on the substrate and has conductivity, for example, it can be made of conductive metal material, and the fixing frame 31 is electrically connected with the microprocessor.

The movable frame 32 is located in the fixed frame 31 and is also conductive, and may be made of a conductive metal material, for example; the movable frame 32 is electrically connected with the fixed frame 31 through the first elastic sheet 34, the first elastic sheet 34 plays a role in transmitting current, and the first elastic sheet 34 has elasticity, can move relative to the fixed frame 31 and drives the movable frame 32 to move; for example, the first resilient tab 34 may be a spring. The photosensitive chip 20 is fixed on the movable frame 32, so that the photosensitive chip 20 can move along with the movement of the movable frame 32 to realize optical anti-shake, thereby effectively overcoming the image blur caused by the vibration of the camera module and ensuring the definition of the image.

The capacitor element 33 is located in the movable frame 32, as shown in fig. 4, the capacitor element 33 includes a first capacitor plate 331 fixed on the substrate and a second capacitor plate 332 electrically connected to the movable frame 32 through the second elastic sheet 35. That is, the first capacitor plate 331 is fixed, and the second capacitor plate 332 can move along with the movement of the movable frame 32. For example, the first capacitor plate 331 and the second capacitor plate 332 are two capacitor plates facing each other, and the movement of the second capacitor plate 332 causes the capacitance of the capacitor assembly 33 to change. In particular, the amount of the solvent to be used,

C＝εS/d；

wherein C is capacitance; ε is the vacuum permittivity, which is a constant; s is the overlapping area of the first capacitor plate 331 and the second capacitor plate 332; d is the distance between the first capacitor plate 331 and the second capacitor plate 332.

It can be understood that the distance between the first capacitor plate 331 and the second capacitor plate 332 is constant, and when the second capacitor plate 332 is displaced, the overlapping area S of the first capacitor plate 331 and the second capacitor plate 332 is increased or decreased, so that the capacitance is increased or decreased accordingly.

For example, when the electronic device vibrates or shakes to displace the photosensitive chip 20 along with the movable frame 32, image blurring may occur; at this time, the second capacitor plate 332 is also moved under the driving of the movable frame 32, so as to change the capacitance of the capacitor assembly 33, so that the electrical signal of the capacitor assembly 33 is changed, and the changed electrical signal can be sent to the microprocessor; the microprocessor processes and feeds back the calculated result to a processor of the electronic device, the processor calculates a displacement compensation amount and sends the displacement compensation amount to the microprocessor, the microprocessor adjusts output voltage based on the displacement compensation amount, coulomb force is generated according to static electricity, the coulomb force between the first capacitor plate 331 and the second capacitor plate 332 changes along with the change of the output voltage, and the change of the coulomb force drives the second capacitor plate 332 to move so as to ensure the structural stability of the capacitor assembly 33; the second capacitor 332 moves to displace the movable frame 32 and the photosensitive chip 20 fixed on the movable frame 32, so as to drive the photosensitive chip 20 to move to the focus point, thereby ensuring the image sharpness and achieving optical anti-shake.

It should be noted that the moving distance and the moving direction of the second capacitor 332 can be controlled by adjusting the output voltage, so that the moving distance and the moving direction of the photosensitive chip 20 can be controlled, and optical anti-shake is realized.

The first capacitor plate 331 and the second capacitor plate 332 are both provided with capacitor plates 333, the capacitor plates on the first capacitor plate 331 and the capacitor plates on the second capacitor plate 332 are arranged in a staggered manner, and the second elastic sheet 35 is arranged on one side of the second capacitor plate 332, which faces away from the at least two capacitor plates 333. As shown in fig. 5, a plurality of first capacitor plates 3331 are disposed on a side of the first capacitor plate 331 facing the second capacitor plate 332, a plurality of second capacitor plates 3332 are disposed on a side of the second capacitor plate 332 facing the first capacitor plate 331, the plurality of first capacitor plates 3331 and the plurality of second capacitor plates 3332 are alternately disposed, and capacitance is generated between the first capacitor plates 3331 and the second capacitor plates 3332. With such an arrangement, the capacitance of the capacitor assembly 33 is larger, and the coulomb force is also larger, so that the second capacitor plate 332 can be better driven to move, so as to drive the photosensitive chip 20 to displace, thereby achieving optical anti-shake.

Referring to fig. 5 again, the first capacitor plate 331 includes a first connecting member 3311 and a plurality of second connecting members 3312 arranged in parallel on one side of the first connecting member 3311, the second capacitor plate 332 includes a third connecting member 3321 and a plurality of fourth connecting members 3322 arranged in parallel on one side of the third connecting member 3321, each of the second connecting members 3312 and each of the fourth connecting members 3322 has a capacitor plate, the plurality of second connecting members 3312 and the plurality of fourth connecting members 3322 are arranged alternately, and the first capacitor substrate 3331 on the second connecting member 3312 and the second capacitor substrate 3332 on the adjacent fourth connecting member 3322 are arranged alternately; the second elastic piece 35 is disposed on a side of the third connecting member 3321 opposite to the fourth connecting member 3322. In the embodiment of the present invention, the capacitor assembly 33 is an electrostatic comb structure, the first capacitor plate 331 is also a fixed comb, the second capacitor plate 332 is a movable comb, and an electrostatic attraction exists between the fixed comb and the movable comb. When the movable comb teeth move, the electric signals between the fixed comb teeth and the movable comb teeth change, the static comb teeth structure sends the changed electric signals to the microprocessor, the microprocessor processes and feeds back the electric signals to the processor of the electronic equipment after calculation, the displacement compensation quantity is calculated, the output voltage is adjusted according to the displacement compensation quantity, the coulomb force between the static comb teeth structure can change according to the adjusted output voltage, and then the movable comb teeth are driven to move for a certain distance in a certain direction, so that the static comb teeth structure is ensured to tend to be stable. In the moving process of the movable comb teeth, the movable frame 32 and the photosensitive chip 20 are also driven to move, so that optical anti-shake is realized.

It should be noted that, in the embodiment of the present invention, one first capacitor plate 331 and one second capacitor plate 332 are in a single electrostatic comb structure, and the capacitor assembly 33 may include a plurality of electrostatic comb structures. As shown in fig. 4, four electrostatic comb structures are disposed in the movable frame 32, and each movable comb is connected to one side of the movable frame 32 through a second elastic sheet 35. Therefore, the movable frame 32 and the photosensitive chip 20 can be driven to move in different directions (such as up, down, left and right) respectively through different electrostatic comb structures, and then the photosensitive chip 20 can be ensured to be displaced in each direction on the plane where the photosensitive chip is located, so as to move to the focus, realize optical anti-shake and ensure image definition.

Embodiments of the present invention further provide an electronic device, where the electronic device includes the camera module described in the above embodiments, and can implement each implementation manner in the above embodiments to achieve the same technical effect, and details are not repeated here to avoid repetition. The electronic device can be a mobile terminal such as a smart phone, a tablet personal computer and an intelligent wearable device, or an electronic product such as a digital camera, a smart television and an intelligent door lock.

An embodiment of the present invention further provides a shooting method, as shown in fig. 6, where the shooting method includes the following steps:

and 601, acquiring the definition of a first image acquired by the camera module.

It should be noted that the shooting method according to the embodiment of the present invention is applied to the electronic device, and the electronic device includes the camera module according to the embodiment. The definition of the first image collected by the camera module can be obtained under the condition that the camera module is started. The camera module can be started by a user opening shooting software or starting video call software.

Step 602, controlling a focal length adjusting component to deform to realize focal length adjustment under the condition that the definition of the first image is not matched with a preset definition, so as to obtain a second image conforming to the preset definition.

The method comprises the steps of starting a camera module to obtain a first image, and judging whether the definition of the first image is matched with the preset definition. The definition of the image can be represented by parameters such as the resolution of the image, for example, whether the resolution of the image acquired by the camera module is matched with a preset resolution is judged under the condition that the camera module is started.

When the definition of first image and when predetermineeing the definition and not match, then the focus adjustment part deformation in the control camera module realizes focus adjustment to the definition of the second image that makes the camera module gather matches with predetermineeing the definition.

In the embodiment of the invention, the focal length adjusting part is a T-lens assembly, and the T-lens assembly is electrically connected with a processor of the electronic equipment. The specific structure of the T-lens assembly may refer to the specific description of the embodiment described in fig. 2, and is not described herein again. Further, step 602 may include:

under the condition that the definition of the first image is not matched with the preset definition, controlling the T-lens assembly to be electrified, and changing the size of an electrified current based on a preset current change rule;

acquiring the definition of the second image;

and stopping changing the size of the electrifying current under the condition that the definition of the second image is matched with the preset definition.

It can be understood that the T-lens assembly is electrically connected with a processor of the electronic device, and the processor can control the energizing current of the T-lens assembly. Controlling the T-lens assembly to be powered on under the condition that the definition of a first image acquired when the camera module is started is not matched with the preset definition, wherein the T-lens assembly comprises a force application part electrically connected with a processor of the electronic equipment, and the force application part can be piezoelectric ceramic; piezoceramics produces pressure and oppresses the border deformation of first transparent panel to first transparent panel after the circular telegram, and then the extrusion sets up the middle transparent member deformation between first transparent panel and the second transparent panel, forms the thick, thin convex lens in edge in the middle of one to this deformation forms the middle transparent member of convex lens and can refract light in order to realize the focus and adjust.

The processor can adjust the size of the energizing current of the force application part based on the preset current change rule, if the current is larger, the pressure of the force application part on the first transparent panel is larger, the deformation degree of the middle transparent part is more obvious, the edge part of the middle transparent part is thinner, and the middle protruding part is thicker, so that the focusing capacity of the middle transparent part is larger, and the focal length adjustment can be better realized.

It should be noted that, in the process of controlling the T-lens assembly to be powered on, the processor acquires the definition of the second image in real time, and judges whether the definition of the second image is matched with the preset definition in real time. And under the condition that the definition of the second image is matched with the preset definition, stopping changing the size of the electrifying current, namely controlling the electrifying current to be output in a fixed value. Like this, also make the circular telegram size of application of force piece can not change yet, the pressure of application of force piece to first panel also can not change yet, and then in order to maintain the deformation degree of middle transparent, guarantee the focusing ability of middle transparent, guarantee the definition of second image.

In the embodiment of the invention, the focal length is adjusted by controlling the deformation of the focal length adjusting part, compared with the traditional method of adjusting the focal length by changing the distance between the lens group and the chip, the electronic equipment applying the shooting method of the embodiment of the invention does not need to be provided with a drive to drive the lens group to move, and can realize the focal length adjustment by simply controlling the deformation of the focal length adjusting part, thereby simplifying the circuit layout and the control program for realizing the focal length adjustment in the electronic equipment, reducing the whole size of the electronic equipment, and being beneficial to the development of the electronic equipment towards thinning.

Optionally, the step 602 may further include:

under the condition that the displacement of a photosensitive chip is detected, acquiring the electrical signal variation of an MEMS mechanism connected with the photosensitive chip;

calculating displacement compensation according to the electric signal variation;

adjusting the driving voltage of the MEMS mechanism to be a first voltage according to the displacement compensation amount;

controlling a capacitance component of the MEMS mechanism to move based on the first voltage so as to drive the photosensitive chip to move to a first position; the moving distance and the moving direction of the photosensitive chip moving to the first position are matched with the displacement compensation amount.

In the embodiment of the present invention, the camera module further includes an MEMS mechanism, and the specific structure of the MEMS mechanism may refer to the specific description of the embodiment described in fig. 3 to fig. 5, which is not described herein again. Under the condition that the photosensitive chip is detected to be displaced, the photosensitive chip can drive the movable frame and the second capacitor plate in the movable frame to move, so that the capacitance of the capacitor assembly is changed, the electric signal is changed, the MEMS mechanism sends the changed electric signal to the microprocessor, the changed electric signal is fed back to the processor of the electronic equipment through the microprocessor, and the processor obtains the electric signal variation of the MEMS mechanism.

Based on the electric signal variation, calculating the displacement compensation amount to be compensated, and adjusting the driving voltage of the MEMS mechanism to be a first voltage according to the displacement compensation amount, namely changing the driving voltage output to the MEMS mechanism, generating coulomb force according to static electricity, wherein the coulomb force between capacitor plates of the capacitor assembly can be changed along with the change of the driving voltage, and further the coulomb force is changed, and the change of the coulomb force can also drive a movable capacitor plate (a second capacitor plate) in the capacitor assembly to move, so that the movable frame and a photosensitive chip fixed on the movable frame are driven to displace.

In the embodiment of the invention, the driving voltage of the MEMS mechanism is adjusted to be the first voltage through the calculation of the displacement compensation amount, the first voltage can drive the photosensitive chip to move to the first position, and the moving distance and the moving direction of the photosensitive chip moving to the first position are matched with the displacement compensation amount. The displacement compensation quantity can be the moving distance and the moving direction that the sensitization chip needs to move, that is to say, the processor can calculate the displacement compensation quantity that matches with the moving distance and the moving direction that the sensitization chip needs to move when detecting that the sensitization chip takes place the displacement, and then adjust MEMS mechanism's driving voltage pertinence to the effective removal of control sensitization chip realizes optics anti-shake, obtains with predetermineeing the image that the definition matches.

Referring to fig. 7, an embodiment of the present invention further provides an electronic device, as shown in fig. 7, where the electronic device 700 includes:

a first obtaining module 701, configured to obtain a definition of a first image collected by the camera module;

a first control module 702, configured to control the focal length adjustment component to deform to implement focal length adjustment when the definition of the first image is not matched with a preset definition, so as to obtain a second image meeting the preset definition.

Optionally, the focal length adjusting component is a T-lens assembly, and the T-lens assembly is electrically connected with a processor of the electronic device; the first control module 702 is further configured to:

controlling the T-lens assembly to be electrified, and changing the size of the electrified current based on a preset current change rule;

acquiring the definition of the second image;

Optionally, the electronic device 700 further includes:

the second acquisition module is used for acquiring the electrical signal variation of the MEMS mechanism connected with the photosensitive chip under the condition of detecting the displacement of the photosensitive chip;

the calculation module is used for calculating displacement compensation according to the electric signal variation;

the adjusting module is used for adjusting the driving voltage of the MEMS mechanism to be a first voltage according to the displacement compensation amount;

the second control module is used for controlling the capacitor component of the MEMS mechanism to move based on the first voltage so as to drive the photosensitive chip to move to the first position; the moving distance and the moving direction of the photosensitive chip moving to the first position are matched with the displacement compensation amount.

It should be noted that the mobile terminal 700 can implement each process of the shooting method embodiment described in fig. 6, and can achieve the same technical effect, and for avoiding repetition, details are not described here again.

In the embodiment of the present invention, the electronic device 700 implements focus adjustment by controlling the deformation of the focus adjustment component, and compared with the conventional method of adjusting the focus by changing the distance between the lens group and the chip, the electronic device 700 provided in the embodiment of the present invention does not need to be driven by a driver, and can implement focus adjustment by simply controlling the deformation of the focus adjustment component, thereby simplifying the circuit layout and control procedure for implementing focus adjustment in the electronic device 700, reducing the overall size of the electronic device 700, and facilitating the development of the electronic device 700 toward thinning.

In a specific implementation manner of the embodiment of the present invention, the electronic device is a mobile terminal; referring to fig. 8 and fig. 8 are structural diagrams of a mobile terminal according to an embodiment of the present invention, and the mobile terminal 800 is capable of implementing various processes of the embodiment of the shooting method described in fig. 6 and achieving the same technical effect. As shown in fig. 8, a mobile terminal 800 includes, but is not limited to: a radio frequency unit 801, a network module 802, an audio output unit 803, an input unit 804, a sensor 805, a display unit 806, a user input unit 807, an interface unit 808, a memory 809, a processor 810, and a power supply 811. Those skilled in the art will appreciate that the mobile terminal architecture illustrated in fig. 8 is not intended to be limiting of mobile terminals, and that a mobile terminal may include more or fewer components than those illustrated, or some components may be combined, or a different arrangement of components. In the embodiment of the present invention, the mobile terminal includes, but is not limited to, a mobile phone, a tablet computer, a notebook computer, a palm computer, a vehicle-mounted terminal, a wearable device, a pedometer, and the like.

It should be noted that the mobile terminal 800 includes a camera module, and the camera module includes a focal length adjusting component.

Wherein, the processor 810 is configured to:

acquiring the definition of a first image acquired by a camera module;

and under the condition that the definition of the first image is not matched with the preset definition, controlling a focal length adjusting part of the camera module to deform so as to realize focal length adjustment, so as to obtain a second image conforming to the preset definition.

The focal length adjusting component is a T-lens assembly, and the T-lens assembly is electrically connected with the processor 810; a processor 810, further configured to:

controlling the T-lens assembly to be electrified, and changing the electrified current of the T-lens assembly based on a preset current change rule;

acquiring the definition of a second image of the camera module;

and stopping changing the size of the power-on current of the T-lens assembly under the condition that the definition of the second image is matched with the preset definition.

Wherein, the processor 810 is further configured to:

under the condition that displacement of a photosensitive chip of the camera module is detected, acquiring the electrical signal variation of an MEMS mechanism connected with the photosensitive chip;

In the embodiment of the present invention, the mobile terminal 800 implements focus adjustment by controlling deformation of the focus adjustment component, and compared with the conventional method of adjusting the focus by changing the distance between the lens group and the chip, the mobile terminal 800 provided in the embodiment of the present invention does not need to install a driver to drive the lens group to move, and can implement focus adjustment by simply controlling deformation of the focus adjustment component, thereby simplifying the circuit layout and control program for implementing focus adjustment in the mobile terminal 800, reducing the overall size of the mobile terminal 800, and facilitating the development of the mobile terminal 800 toward thinning.

It should be understood that, in the embodiment of the present invention, the radio frequency unit 801 may be used for receiving and sending signals during a message sending and receiving process or a call process, and specifically, receives downlink data from a base station and then processes the received downlink data to the processor 810; in addition, the uplink data is transmitted to the base station. In general, radio frequency unit 801 includes, but is not limited to, an antenna, at least one amplifier, a transceiver, a coupler, a low noise amplifier, a duplexer, and the like. Further, the radio frequency unit 801 can also communicate with a network and other devices through a wireless communication system.

The mobile terminal 800 provides the user with wireless broadband internet access, such as helping the user send and receive e-mails, browse web pages, and access streaming media, etc., through the network module 802.

The audio output unit 803 may convert audio data received by the radio frequency unit 801 or the network module 802 or stored in the memory 809 into an audio signal and output as sound. Also, the audio output unit 803 may also provide audio output related to a specific function performed by the mobile terminal 800 (e.g., a call signal reception sound, a message reception sound, etc.). The audio output unit 803 includes a speaker, a buzzer, a receiver, and the like.

The input unit 804 is used for receiving an audio or video signal. The input Unit 804 may include a Graphics Processing Unit (GPU) 8041 and a microphone 8042, and the Graphics processor 8041 processes image data of a still image or video obtained by an image capturing device (such as a camera) in a video capturing mode or an image capturing mode. The processed image frames may be displayed on the display unit 806. The image frames processed by the graphics processor 8041 may be stored in the memory 809 (or other computer-readable storage medium) or transmitted via the radio frequency unit 801 or the network module 802. The microphone 8042 can receive sound, and can process such sound into audio data. The processed audio data may be converted into a format output transmittable to a mobile communication base station via the radio frequency unit 801 in case of a phone call mode.

The mobile terminal 800 also includes at least one sensor 805, such as light sensors, motion sensors, and other sensors. Specifically, the light sensor includes an ambient light sensor that can adjust the brightness of the display panel 8081 according to the brightness of ambient light, and a proximity sensor that can turn off the display panel 8081 and/or the backlight when the mobile terminal 800 moves to the ear. As one of the motion sensors, the accelerometer sensor can detect the magnitude of acceleration in each direction (generally three axes), detect the magnitude and direction of gravity when stationary, and can be used to identify the posture of the mobile terminal (such as horizontal and vertical screen switching, related games, magnetometer posture calibration), and vibration identification related functions (such as pedometer, tapping); the sensors 805 may also include fingerprint sensors, pressure sensors, iris sensors, molecular sensors, gyroscopes, barometers, hygrometers, thermometers, infrared sensors, etc., which are not described in detail herein.

The display unit 806 is used to display information input by the user or information provided to the user. The Display unit 806 may include a Display panel 8081, and the Display panel 8081 may be configured in the form of a Liquid Crystal Display (LCD), an Organic Light-Emitting Diode (OLED), or the like.

The user input unit 807 may be used to receive input numeric or character information and generate key signal inputs related to user settings and function control of the mobile terminal 800. Specifically, the user input unit 807 includes a touch panel 8071 and other input devices 8072. The touch panel 8071, also referred to as a touch screen, may collect touch operations by a user on or near the touch panel 8071 (e.g., operations by a user on or near the touch panel 8071 using a finger, a stylus, or any other suitable object or accessory). The touch panel 8071 may include two portions of a touch detection device and a touch controller. The touch detection device detects the touch direction of a user, detects a signal brought by touch operation and transmits the signal to the touch controller; the touch controller receives touch information from the touch sensing device, converts the touch information into touch point coordinates, sends the touch point coordinates to the processor 810, receives a command from the processor 810, and executes the command. In addition, the touch panel 8071 can be implemented by various types such as a resistive type, a capacitive type, an infrared ray, and a surface acoustic wave. In addition to the touch panel 8071, the user input unit 807 can include other input devices 8072. In particular, other input devices 8072 may include, but are not limited to, a physical keyboard, function keys (e.g., volume control keys, switch keys, etc.), a trackball, a mouse, and a joystick, which are not described in detail herein.

Further, the touch panel 8071 can be overlaid on the display panel 8081, and when the touch panel 8071 detects a touch operation on or near the touch panel 8071, the touch operation can be transmitted to the processor 810 to determine the type of the touch event, and then the processor 810 can provide a corresponding visual output on the display panel 8081 according to the type of the touch event. Although the touch panel 8071 and the display panel 8081 are shown in fig. 8 as two separate components to implement the input and output functions of the mobile terminal 800, in some embodiments, the touch panel 8071 and the display panel 8081 may be integrated to implement the input and output functions of the mobile terminal 800, and this is not limited herein.

The interface unit 808 is an interface through which an external device is connected to the mobile terminal 800. For example, the external device may include a wired or wireless headset port, an external power supply (or battery charger) port, a wired or wireless data port, a memory card port, a port for connecting a device having an identification module, an audio input/output (I/O) port, a video I/O port, an earphone port, and the like. The interface unit 808 may be used to receive input (e.g., data information, power, etc.) from external devices and transmit the received input to one or more elements within the mobile terminal 800 or may be used to transmit data between the mobile terminal 800 and external devices.

The memory 809 may be used to store software programs as well as various data. The memory 809 may mainly include a storage program area and a storage data area, wherein the storage program area may store an operating system, an application program required by at least one function (such as a sound playing function, an image playing function, etc.), and the like; the storage data area may store data (such as audio data, a phonebook, etc.) created according to the use of the cellular phone, and the like. Further, the memory 809 can include high speed random access memory, and can also include non-volatile memory, such as at least one magnetic disk storage device, flash memory device, or other volatile solid state storage device.

The processor 810 is a control center of the mobile terminal 800, connects various parts of the entire mobile terminal 800 using various interfaces and lines, and performs various functions of the mobile terminal 800 and processes data by running or executing software programs and/or modules stored in the memory 809 and calling data stored in the memory 809, thereby monitoring the mobile terminal 800 as a whole. Processor 810 may include one or more processing units; preferably, the processor 810 may integrate an application processor, which mainly handles operating systems, user interfaces, application programs, etc., and a modem processor, which mainly handles wireless communications. It will be appreciated that the modem processor described above may not be integrated into processor 810.

The mobile terminal 800 may also include a power supply 811 (e.g., a battery) for powering the various components, and the power supply 811 may be logically coupled to the processor 810 via a power management system that may be used to manage charging, discharging, and power consumption.

In addition, the mobile terminal 800 includes some functional modules that are not shown, and thus, are not described in detail herein.

Optionally, an embodiment of the present invention further provides an electronic device, which includes a processor, a memory, and a computer program stored in the memory and capable of running on the processor, where the computer program, when executed by the processor, implements each process of the foregoing shooting method embodiment, and can achieve the same technical effect, and details are not repeated here to avoid repetition.

The embodiment of the present invention further provides a computer-readable storage medium, where a computer program is stored on the computer-readable storage medium, and when the computer program is executed by a processor, the computer program implements each process of the above-mentioned shooting method embodiment, and can achieve the same technical effect, and in order to avoid repetition, details are not repeated here. The computer-readable storage medium may be a Read-Only Memory (ROM), a Random Access Memory (RAM), a magnetic disk or an optical disk.

It should be noted that, in this document, the terms "comprises," "comprising," or any other variation thereof, are intended to cover a non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements does not include only those elements but may include other elements not expressly listed or inherent to such process, method, article, or apparatus. Without further limitation, an element defined by the phrase "comprising an … …" does not exclude the presence of other like elements in a process, method, article, or apparatus that comprises the element.

Through the above description of the embodiments, those skilled in the art will clearly understand that the method of the above embodiments can be implemented by software plus a necessary general hardware platform, and certainly can also be implemented by hardware, but in many cases, the former is a better implementation manner. Based on such understanding, the technical solutions of the present invention may be embodied in the form of a software product, which is stored in a storage medium (such as ROM/RAM, magnetic disk, optical disk) and includes instructions for enabling a terminal (such as a mobile phone, a computer, a server, an air conditioner, or a network device) to execute the method according to the embodiments of the present invention.

The above description is only for the specific embodiments of the present invention, but the scope of the present invention is not limited thereto, and any person skilled in the art can easily conceive of the changes or substitutions within the technical scope of the present invention, and all the changes or substitutions should be covered within the scope of the present invention. Therefore, the protection scope of the present invention shall be subject to the protection scope of the claims.

Claims

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

a photosensitive chip; and the number of the first and second groups,

the lens module comprises a focal length adjusting component, is arranged in the light inlet channel of the photosensitive chip and is used for collecting light and projecting the collected light onto the photosensitive chip; the focal length adjusting part realizes focal length adjustment through deformation;

the focal length adjusting component is a tunable lens T-lens component;

the T-lens assembly comprises:

a first transparent panel;

a second transparent panel;

the middle transparent piece is clamped between the first transparent panel and the second transparent panel; and the number of the first and second groups,

and the force application part is used for applying acting force to the middle transparent part through at least one of the first transparent panel and the second transparent panel so as to deform the middle transparent part.

2. The camera module of claim 1, wherein the intermediate transparent member is made of a polymer.

3. The camera module according to claim 1, wherein the force application member is disposed at an edge of a side of the first transparent panel opposite to the middle transparent member, and the force application member is configured to deform the edge of the first transparent panel to approach the second transparent panel so as to press the middle transparent member to deform; alternatively, the first and second electrodes may be,

the force application part is arranged on the edge of one side, back to the middle transparent part, of the second transparent panel, and the force application part is used for enabling the edge of the second transparent panel to deform and approach the first transparent panel so as to press the middle transparent part to deform.

4. The camera module of claim 3, wherein the force-applying member is made of a piezoelectric ceramic, and the force-applying member is electrically connected to a processor of the electronic device.

5. The camera module according to any one of claims 1 to 4, further comprising a driving module, wherein the photosensitive chip is connected to the driving module, and the driving module is configured to drive the photosensitive chip to move.

6. The camera module of claim 5, wherein the drive module comprises a micro-electromechanical systems (MEMS) mechanism.

7. The camera module of claim 6, wherein the MEMS mechanism comprises:

the substrate is fixed in the electronic equipment, and a microprocessor electrically connected with a processor of the electronic equipment is arranged on the substrate;

the fixing frame is fixed on the substrate and electrically connected with the microprocessor;

the movable frame is positioned in the fixed frame, the movable frame is electrically connected with the fixed frame through a first elastic sheet, and the photosensitive chip is fixedly connected with the movable frame;

the capacitor assembly is positioned in the movable frame and comprises a first capacitor piece fixed on the substrate and a second capacitor piece electrically connected with the movable frame through a second elastic piece;

the microprocessor is used for controlling the movable frame to move so as to drive the photosensitive chip to move.

8. The camera module according to claim 7, wherein the first capacitor plate and the second capacitor plate are provided with capacitor plates, the capacitor plates on the first capacitor plate and the capacitor plates on the second capacitor plate are alternately arranged, and the second spring plate is provided on a side of the second capacitor plate facing away from the capacitor plates of the second capacitor plate.

9. The camera module according to claim 8, wherein the first capacitor plate includes a first connecting member and a plurality of second connecting members juxtaposed on one side of the first connecting member, the second capacitor plate includes a third connecting member and a plurality of fourth connecting members juxtaposed on one side of the third connecting member, each of the second connecting members and each of the fourth connecting members has the capacitor plate thereon, and the plurality of second connecting members and the plurality of fourth connecting members are disposed alternately; the second elastic sheet is arranged on one side of the third connecting piece, which is back to the fourth connecting piece.

10. An electronic device, comprising the camera module according to any one of claims 1 to 9.

11. A photographing method, characterized by comprising:

acquiring the definition of a first image acquired by a camera module;

under the condition that the definition of the first image is not matched with the preset definition, controlling a focal length adjusting component to deform to realize focal length adjustment so as to obtain a second image conforming to the preset definition;

the focal length adjusting part is the T-lens assembly in claim 1, and the T-lens assembly is electrically connected with a processor of an electronic device;

the step of controlling the focal length adjustment component to deform to realize focal length adjustment so as to obtain a second image conforming to the preset definition comprises the following steps:

acquiring the definition of the second image;

12. The photographing method according to claim 11, further comprising:

13. An electronic device, comprising:

the first control module is used for controlling the focal length adjusting component to deform to realize focal length adjustment under the condition that the definition of the first image is not matched with the preset definition so as to obtain a second image conforming to the preset definition;

the focal length adjusting member is a T-lens assembly as described in claim 1, which is electrically connected to a processor of an electronic device.