CN116088126A - Image pickup apparatus, control method thereof, control apparatus, and terminal device - Google Patents

Abstract

The present disclosure relates to an image pickup apparatus, a control method thereof, a control apparatus, and a terminal device. Wherein, the camera device includes: a lens assembly; a detection assembly; a movement driving part connected with the lens assembly and used for driving the lens assembly to move along the optical axis direction of the lens assembly; the motion driving part is connected with the detection assembly and is used for driving the detection assembly to move along the optical axis direction of the lens assembly; and a driving control part electrically connected with the motion driving part to drive the lens assembly and the detection assembly to move along the optical axis direction of the lens assembly in opposite directions. According to the image pickup device, the lens assembly and the detection assembly are controlled to move in opposite directions through the motion driving part, so that the distance between the lens assembly and the detection assembly can be changed more quickly, and the focusing speed is improved.

Description

Image pickup apparatus, control method thereof, control apparatus, and terminal device

Technical Field

The disclosure relates to the technical field of electronic equipment, and in particular relates to an imaging device, a control method thereof, a control device thereof and terminal equipment.

Background

The built-in camera of mobile device has satisfied people's life and has shooed and make a video recording the demand, and camera in the related art generally includes lens, voice coil motor and image sensor, and image sensor is used for receiving the light through the lens to convert it into image information. In the photographing or image capturing process, when the distance (object distance) between the lens and the object to be photographed changes, the distance (image distance) between the imaging plane after the light passes through the lens and the lens also changes. In order to acquire a clear image, the distance between the lens and the image sensor must be adjusted so that the image sensor coincides with the imaging plane, thereby acquiring a clear image.

Disclosure of Invention

In order to overcome the problems in the related art, the present disclosure provides an image pickup apparatus, a control method thereof, a control apparatus, and a terminal device.

According to a first aspect of the present disclosure, there is provided an image pickup apparatus including: a lens assembly; a detection assembly; a movement driving part connected with the lens assembly, wherein the movement driving part is used for driving the lens assembly to move along the optical axis direction of the lens assembly; the motion driving part is connected with the detection component and is used for driving the detection component to move along the optical axis direction of the lens component; and a driving control part electrically connected with the motion driving part to drive the lens assembly and the detection assembly to move along the optical axis direction of the lens assembly in opposite directions.

In some embodiments of the present disclosure, the motion driving part includes a first driving part and a second driving part that are independent of each other, the first driving part is connected with the lens assembly, and the second driving part is connected with the detection assembly; alternatively, the driving part includes a first driving part and a second driving part, and the first driving part and the second driving part are integrated into one body.

In some embodiments of the present disclosure, the internal structure arrangement order of the first driving part is opposite to the internal structure arrangement order of the second driving part; alternatively, the winding direction of the coil of the first driving part is opposite to the winding direction of the coil of the second driving part; or the connection mode of the positive electrode and the negative electrode of the first driving part is opposite to the connection mode of the positive electrode and the negative electrode of the second driving part; alternatively, the directions of the currents input to the first driving unit and the second driving unit are opposite.

In some embodiments of the present disclosure, the motion driving part includes a base, and the first driving part and the second driving part are mounted to the base; and the inner structure of the first driving part and the inner structure of the second driving part are symmetrically arranged by taking the central line of the base as a symmetry axis.

In some embodiments of the disclosure, the driving control part comprises a first control chip and a second control chip which are independent from each other, the first control chip is connected with the first driving part, and the second control chip is connected with the second driving part; and/or, the driving control part comprises a total control chip, the total control chip comprises a first control branch and a second control branch, the first control branch is connected with the first driving part, and the second control branch is connected with the second driving part.

In some embodiments of the present disclosure, the detection assembly includes an image sensor and a circuit board connected to the image sensor.

In some embodiments of the present disclosure, the motion driving part includes a voice coil motor and a piezoelectric motor.

According to a second aspect of the present disclosure, there is provided a control method of an image pickup apparatus, applied to a drive control section, the control method including: acquiring first interval information between a lens assembly and an imaging plane; acquiring second interval information between the lens assembly and the detection assembly; acquiring a first preset value; determining an absolute value of a difference between the first pitch information and the second pitch information according to the first pitch information and the second pitch information; the absolute value of the difference is larger than the first preset value, and control information is sent to the motion driving part to drive the lens assembly and the detection assembly to move in opposite directions.

In some embodiments of the present disclosure, the control method includes: the absolute value of the difference is smaller than or equal to the first preset value, and control information is sent to the motion driving part to drive the lens assembly to move relative to the detection assembly or drive the detection assembly to move relative to the lens assembly.

In some embodiments of the present disclosure, the transmitting control information to the motion driving part includes: a first driving part for transmitting first current information to the motion driving part; transmitting second current information to a second driving part of the motion driving part; the current directions of the first current information and the second current information are opposite.

According to a third aspect of the present disclosure, there is provided a control apparatus for implementing a control method of an image pickup apparatus, the apparatus including: an acquisition module for acquiring first interval information between the lens assembly and the imaging plane; the acquisition module is also used for acquiring second interval information between the lens component and the detection component; a determining module, configured to determine an absolute value of a difference between the first pitch information and the second pitch information according to the first pitch information and the second pitch information; and the control module is used for sending control information to the motion driving part when the absolute value of the difference value is larger than the first preset value so as to drive the lens component and the detection component to move in opposite directions.

In some embodiments of the present disclosure, the determining module is further configured to send control information to the motion driving unit to drive the lens assembly to move relative to the detection assembly or to drive the detection assembly to move relative to the lens assembly, where an absolute value of the difference is less than or equal to the first preset value.

According to a fourth aspect of the present disclosure, there is provided a terminal device comprising an imaging apparatus as set forth in the first aspect.

According to a fifth aspect of the present disclosure, there is provided a terminal device, the terminal device comprising a processor; a memory for storing processor-executable instructions; wherein the processor is configured to perform a method comprising the control as set forth in the second aspect.

The technical solutions provided in some embodiments of the present disclosure may include the following beneficial effects: the lens component and the detection component are respectively driven by the motion driving part to move along opposite directions, so that the distance between the lens component and the detection component can be changed more quickly, and the focusing speed is improved.

It is to be understood that both the foregoing general description and the following detailed description are exemplary and explanatory only and are not restrictive of the disclosure.

Drawings

The accompanying drawings, which are incorporated in and constitute a part of this specification, illustrate embodiments consistent with the invention and together with the description, serve to explain the principles of the invention.

Fig. 1 is a schematic diagram of an image pickup apparatus according to an exemplary embodiment.

Fig. 2 is a schematic diagram of an image pickup apparatus shown according to an exemplary embodiment.

Fig. 3 is a schematic diagram of an image pickup apparatus according to an exemplary embodiment.

Fig. 4 is a schematic diagram of a drive control section and a motion drive section according to an exemplary embodiment.

Fig. 5 is a schematic diagram of a drive control section and a motion drive section according to an exemplary embodiment.

Fig. 6 is a schematic diagram of a drive control section and a motion drive section according to an exemplary embodiment.

Fig. 7 is a schematic diagram of a control device according to an exemplary embodiment.

Fig. 8 is a flowchart illustrating a control method of the image capturing apparatus according to an exemplary embodiment.

Fig. 9 is a flowchart illustrating a control method of the image capturing apparatus according to an exemplary embodiment.

Fig. 10 is a flowchart illustrating a control method of the image capturing apparatus according to an exemplary embodiment.

Fig. 11 is a schematic diagram of an image pickup apparatus according to an exemplary embodiment.

Fig. 12 is a block diagram of a terminal device shown according to an exemplary embodiment.

Detailed Description

Reference will now be made in detail to exemplary embodiments, examples of which are illustrated in the accompanying drawings. When the following description refers to the accompanying drawings, the same numbers in different drawings refer to the same or similar elements, unless otherwise indicated. The implementations described in the following exemplary examples do not represent all implementations consistent with the invention. Rather, they are merely examples of apparatus consistent with aspects of the invention as detailed in the accompanying claims.

In the related art, an image sensor is fixedly arranged on a mobile device shell, a base of the image sensor and a base of a voice coil motor are relatively static, a lens is arranged on a coil of the voice coil motor, and the lens is driven to move through the coil of the voice coil motor in the shooting process so as to change the distance between the lens and the image sensor and realize the adjustment of object distance and image distance. The mode of focusing is realized only by driving the lens to move, so that the time consumption is long, the focusing speed is low, and the shooting experience of a user is influenced.

In order to solve the above technical problems, the present disclosure provides an image pickup apparatus, as shown in fig. 1, referring to fig. 6, which includes a lens assembly 10, a detection assembly 20, a motion driving part 30, and a driving control part 40. The detecting element 20 receives the light transmitted through the lens element 10 and converts it into an image signal.

Wherein, the motion driving part 30 is respectively connected with the lens assembly 10 and the detecting assembly 20, the driving control part 40 is electrically connected with the motion driving part 30, and the driving control part 40 controls the motion driving part 30 to drive the lens assembly 10 and the detecting assembly 20 to move along the optical axis direction of the lens assembly 10 towards opposite directions, so that the lens assembly 10 and the detecting assembly 20 move towards each other at the same time or the lens assembly 10 and the detecting assembly 20 move towards each other at the same time, so as to change the distance between the lens assembly 10 and the detecting assembly 20 rapidly.

In this embodiment, compare in the regulation mode of adjusting the image distance through the removal lens, this application is through two objects of motion drive portion simultaneous control lens subassembly and detection subassembly along opposite direction removal, distance between lens subassembly and the detection subassembly that can be faster change, improves focusing speed.

According to an exemplary embodiment, the present embodiment provides an image pickup apparatus, as shown in fig. 1, referring to fig. 6, which includes a lens assembly 10, a detection assembly 20, a motion driving section 30, and a driving control section 40. The lens assembly 10 includes one or more convex lenses, and the detecting assembly 20 is located on the optical axis of the lens assembly 10, so that the light transmitted through the lens assembly 10 can be irradiated to the detecting assembly 20. The light irradiated on the object can form an image of the object on an imaging plane after being diffusely reflected through the lens assembly 10, and the detection assembly 20 can receive the light transmitted through the lens assembly 10 and convert the light into an image signal, and the image signal is transmitted to a screen to complete the display or storage of the image of the object.

When the position of the detecting component 20 is coincident with the imaging plane, the detecting component 20 can obtain clear image information, and the distance between the lens component 10 and the detecting component 20 is the image distance. In the present embodiment, the motion driving portion 30 is respectively connected to the lens assembly 10 and the detection assembly 20, the motion driving portion 30 can drive the lens assembly 10 to move along the optical axis direction of the lens assembly 10, the motion driving portion 30 can also drive the detection assembly 20 to move along the optical axis direction of the lens assembly 10, and focusing is completed by changing the distance between the lens assembly 10 and the detection assembly 20.

The driving control unit 40 is electrically connected to the motion driving unit 30, and when the object to be photographed is changed in the photographing process, the distance (object distance) between the lens assembly 10 and the imaging plane is changed due to the change of the distance (object distance) between the lens assembly and the object to be photographed, and at this time, the relative position between the detection assembly 20 and the lens assembly 10 needs to be changed so that the detection assembly 20 coincides with the imaging plane to obtain a clear image. The driving control part 40 controls the motion driving part 30 to simultaneously drive the lens assembly 10 and the detection assembly 20 to move in opposite directions, so that the relative position between the lens assembly 10 and the detection assembly 20 is quickly changed, the detection assembly 20 is overlapped with an imaging plane to obtain a clear image, and the focusing process of the image pickup device is completed.

In this embodiment, the detecting assembly 20 includes an image sensor 21 and a circuit board 22 connected to the image sensor 21, the image sensor 21 is used for receiving the light transmitted through the lens assembly 10 and converting the light into an image signal, and the circuit board 22 is used for transmitting the image signal. The image sensor 21 includes, but is not limited to, a CCD sensor (charge coupled device image sensor Charge Coupled Device), a CMOS sensor (Complementary Metal-Oxide-Semiconductor). The circuit board 22 is a flexible circuit board, and when the motion driving part 30 drives the image sensor 21 to move, one end of the circuit board 22 connected to the image sensor 21 moves along with the image sensor 21 to ensure that the circuit board 22 can maintain electrical connection with the image sensor 21.

In the present embodiment, as shown in fig. 1 and 3, the motion driving section 30 includes a voice coil motor and a piezoelectric motor. Voice coil motors include, but are not limited to, a plate type voice coil motor, a ball type voice coil motor. In one example, when the movement driving part 30 includes a voice coil motor, the lens assembly 10 or the detection assembly 20 is disposed on a movement coil of the voice coil motor to drive the lens assembly or the detection assembly 20 to move by the movement coil of the voice coil motor, and a moving direction of the movement coil of the voice coil motor is parallel to an optical axis of the lens assembly. In another example, as shown in fig. 3, when the motion driving part 30 includes a piezoelectric motor, the lens assembly 10 or the detection assembly 20 is disposed on the piezoelectric body 34 of the piezoelectric motor, and a voltage is applied to the piezoelectric body 34 to cause the piezoelectric body 34 to perform an axial telescopic motion, thereby driving the lens assembly 10 or the detection assembly 20 to move. The axial direction of the piezoelectric body 34 is parallel to the optical axis direction of the lens assembly 10. The piezoelectric body 34 is a thin-walled cylindrical piezoelectric body, and when a voltage is applied between the inner and outer walls of the piezoelectric body 34, an axial expansion and contraction movement occurs.

In another embodiment of the present disclosure, the motion driving part may further include a shape memory alloy (shape memory alloys, SMA) motor, although the form of the motor is not limited in the embodiment of the present disclosure.

In some embodiments of the present disclosure, as shown in fig. 1, referring to fig. 6, the motion driving part 30 includes a first driving part 31 and a second driving part 32 that are independent of each other. The first driving part 31 is connected to the lens assembly 10, and the first driving part 31 is used for driving the lens assembly 10 to move along the optical axis direction of the lens assembly 10. The second driving part 32 is connected to the detecting unit 20, and the second driving part 32 is used for driving the detecting unit 20 to move along the optical axis direction of the lens unit 10. In this embodiment, the lens assembly 10 and the detection assembly 20 are driven by two independent first driving portions 31 and second driving portions 32 respectively, so that focusing processes can be completed in different manners, and users can have more choices and the shooting experience of the users is enriched. In one example, the driving control device may only control the first driving part 31 to drive the lens assembly to move, so that the detection assembly 20 remains stationary, and the focusing process is relatively slow. In another example, the driving control device may also control the first driving part 31 to drive the lens assembly 10 to move, and control the second driving part 32 to drive the detecting assembly 20, so that the lens assembly 10 and the detecting assembly 20 respectively move in opposite directions, and the focusing process is completed more quickly.

The two mutually independent first and second driving parts 31, 32 can make the structure of the camera device simpler and the control process easier to implement. In the implementation process, the first driving part 31 and the second driving part 32 are voice coil motors, the lens assembly 10 is arranged on the moving coil of one voice coil motor, the detection assembly 20 is arranged on the moving coil of the other voice coil motor, and the moving coils of the two voice coil motors are respectively controlled to move by the driving control part 40, so that the rapid focusing function can be realized.

In another example, as shown in fig. 2, the internal structure of the first driving unit 31 is arranged in the reverse order to the internal structure of the second driving unit 32, and when the same current is input to the first driving unit 31 and the second driving unit 32, the first driving unit and the second driving unit can be moved in the opposite directions. For example, as shown in fig. 1, the first driving part 31 and the second driving part 32 are voice coil motors, one voice coil motor is inverted with respect to the other voice coil motor, and when the two voice coil motors receive the same current input signal, the moving coils on the two voice coil motors move toward each other or the moving coils on the two voice coil motors move toward each other.

In some embodiments of the present disclosure, as shown in fig. 2 and 3, the motion driving part 30 includes a first driving part 31 and a second driving part 32, and the first driving part 31 and the second driving part 32 are integrated into one body, making the structure of the image pickup apparatus more compact. The first driving part 31 is connected to the lens assembly 10, and the first driving part 31 is used for driving the lens assembly 10 to move along the optical axis direction of the lens assembly 10. The second driving part 32 is connected to the detecting unit 20, and the second driving part 32 is used for driving the detecting unit 20 to move along the optical axis direction of the lens unit 10. As shown in fig. 2, the first driving part 31 and the second driving part 32 are integrated on one base 33.

In one example, as shown in fig. 3, when the motion driving portion 30 includes a piezoelectric motor, the first driving portion 31 and the second driving portion 32 are integrally formed with a piezoelectric body 34, and the lens assembly 10 and the detection assembly 20 are respectively disposed at two ends of the piezoelectric body 34, and drive the lens assembly 10 and the detection assembly 20 to move in opposite directions through the telescopic motion of the piezoelectric body 34 along the circumferential direction.

In one example, as shown in fig. 2, the motion driving part 30 includes a base 33, and the first driving part 31 and the second driving part 32 are mounted to the base 33. The first driving part 31 and the second driving part 32 can move along the optical axis direction of the lens assembly 10 relative to the base 33, the central line of the base 33 is used as a symmetrical axis, the internal structure of the first driving part 31 and the internal structure of the second driving part 32 are symmetrically arranged, when the first driving part 31 and the second driving part 32 acquire the same input current, the first driving part 31 and the second driving part 32 can move along opposite directions respectively, and the control mode of the first driving part 31 and the second driving part 32 is simpler. For example, when the motion driving unit 30 includes a voice coil motor, the first driving unit 31 and the second driving unit 32 are two independent motion coils, the voice coil motor includes a base 33, the two motion coils are respectively mounted at two ends of the base 33, the two motion coils are slidably connected to the base 33, the two motion coils have the same structure, and the two motion coils are symmetrically arranged with a center line of the base 33 as a symmetry axis, and when the same current is respectively inputted to the two motion coils, the two motion coils are respectively moved in opposite directions.

In another example, when the winding direction of the coil of the first driving unit 31 is opposite to the winding direction of the coil of the second driving unit 32 and the same current is applied to the coils, the directions of the magnetic fields generated in the coil of the first driving unit 31 and the coil of the second driving unit 32 are opposite, and the magnetic field force received by the first driving unit 31 is opposite to the magnetic field force received by the second driving unit 32, so that the first driving unit 31 and the second driving unit 32 are moved in opposite directions. For example, the first driving unit 31 and the second driving unit 32 are two independent voice coil motors, the two voice coil motors are arranged in the same direction, the winding direction of the coil of the first driving unit 31 is opposite to the winding direction of the coil of the second driving unit 32, and the base of the voice coil motor is provided with a magnet, so that the magnetic field generated by the coil of the first driving unit 31 and the magnetic field of the magnet repel each other or attract each other. When current is applied to the coils of the first driving unit 31 and the second driving unit 32, the winding directions of the coils are opposite, so that the directions of the magnetic fields generated by the coils of the first driving unit 31 and the coils of the second driving unit 32 are opposite, and when the magnetic fields generated by the coils of the first driving unit 31 and the magnets attract each other, the magnetic fields generated by the coils of the second driving unit 32 and the magnets repel each other, so that the stress directions of the coils of the first driving unit 31 and the coils of the second driving unit 32 are opposite, and the movement directions of the first driving unit 31 and the second driving unit 32 are opposite.

In another example, the connection mode of the positive and negative electrodes of the first driving part 31 is opposite to the connection mode of the positive and negative electrodes of the second driving part 32, and the voltage connected to the first driving part 31 and the second driving part 32 is opposite, or the current flowing into the first driving part 31 is opposite to the current flowing into the second driving part 32, so that the first driving part 31 and the second driving part 32 move in opposite directions. For example, when the first driving unit 31 and the second driving unit 32 are voice coil motors, the base 33 of the voice coil motor is provided with a magnet so that the magnetic field generated by the coil of the first driving unit 31 and the magnetic field of the magnet repel each other or attract each other. Both voice coil motors are disposed in the same direction, and when the current direction of the coil of the first driving unit 31 is opposite to the current direction of the coil of the second driving unit 32, the magnetic field generated by the coil of the first driving unit 31 and the magnetic field generated by the magnet are attracted to each other, and when the magnetic field generated by the coil of the first driving unit 31 and the magnetic field generated by the magnet are attracted to each other, the magnetic field generated by the coil of the second driving unit 32 and the magnetic field generated by the magnet are repelled to each other, so that the stress directions of the coil of the first driving unit 31 and the coil of the second driving unit 32 are opposite to each other, and the movement directions of the first driving unit 31 and the second driving unit 32 are reversed.

According to an exemplary embodiment, the image capturing apparatus in this embodiment includes various structures related to the above-described embodiments, and will not be described here again. In addition, as shown in fig. 4, the driving control part 40 in the present embodiment includes a first control chip 41 and a second control chip 42 that are independent of each other, the first control chip 41 is connected to the first driving part 31, the second control chip 42 is connected to the second driving part 32, the driving control part 40 controls the first driving part 31 to drive the lens assembly 10 to move in the optical axis direction of the lens assembly 10 through the first control chip 41, and the driving control part 40 controls the second driving part 32 to drive the lens assembly 10 to move in the optical axis direction of the detection assembly 20 through the second control chip 42. The first control chip 41 controls the first driving part 31 and the second control chip 42 controls the second driving part 32 independently, so that the driving control part 40 can transmit different control signals to the first driving part 31 and the second driving part 32, and the first driving part 31 and the second driving part 32 can move independently. For example, as shown in fig. 1, when the motion driving part 30 includes two voice coil motors independent of each other, the lens assembly 10 is disposed at the moving coil of one voice coil motor, the detection assembly 20 is disposed at the moving coil of the other voice coil motor, and currents in different directions can be respectively inputted to the two voice coil motors through the first control chip 41 and the second control chip 42 to move the two moving coils in opposite directions.

According to an exemplary embodiment, unlike the previous embodiment, as shown in fig. 5, the driving control part 40 in the present embodiment includes a total control chip 43, the total control chip 43 includes a first control branch 431 and a second control branch 432, the first control branch 431 is connected to the first driving part 31, the second control branch 432 is connected to the second driving part 32, and the first driving part 31 and the second driving part 32 are simultaneously controlled by one total control chip 43, so that the first driving part 31 and the second driving part 32 are simultaneously moved in opposite directions to reduce signal delay, so that the first driving part 31 and the second driving part 32 can be synchronously moved, and the focusing speed is further increased. The distance of the first control branch 431 and the distance of the second control branch 432 are as equal as possible, so as to reduce signal delay.

According to an exemplary embodiment, the present embodiment provides a control method of an image pickup apparatus, as shown in fig. 8, the control method including the steps of:

step S101: acquiring first interval information between a lens assembly and an imaging plane;

step S102: acquiring second interval information between the lens assembly and the detection assembly;

step S103: determining an absolute value of a difference between the first pitch information and the second pitch information according to the first pitch information and the second pitch information;

step S104: the absolute value of the difference is larger than a first preset value, and control information is sent to the motion driving part to drive the lens assembly and the detection assembly to move in opposite directions.

As shown in fig. 11, the distance between the lens assembly 10 and the imaging plane Y is the image distance, and therefore, the first distance information between the lens assembly 10 and the imaging plane Y is the length of the image distance. The second distance information is an actual distance value between the lens assembly 10 and the detecting assembly 20, and the absolute value of the difference between the first distance information and the second distance information is a sum of distances required to be moved between the lens assembly 10 and the detecting assembly 20 in the process of moving the detecting assembly 20 to the imaging plane Y. For example, when the image capturing device captures an object, the distance between the lens assembly 10 and the imaging plane Y is a, before focusing, the distance between the lens assembly 10 and the detecting assembly 20 is B, and for clear imaging, the detecting assembly 20 needs to be moved to coincide with the imaging plane Y to complete focusing, and when focusing is completed, the distance between the lens assembly 10 and the detecting assembly 20 is a. Therefore, the absolute value of the difference between a and B is the sum of the distance traveled by the lens assembly 10 and the distance traveled by the detection assembly 20. The first preset value is a distance value preset in advance, when the absolute value of the difference is greater than the first preset value, it is indicated that the detection component 20 is not located on the imaging plane Y, and the lens component 10 and the detection component 20 need to move a larger distance to complete focusing, at this time, control information is sent to the motion driving part to drive the lens component 10 and the detection component 20 to move in opposite directions, so that the distance value between the lens component 10 and the detection component 20 is quickly adjusted to a, and quick focusing is achieved.

In an implementation, sending the control information to the motion driving portion includes: a first driving part for transmitting the first current information to the motion driving part; transmitting the second current information to a second driving part of the motion driving part; the first current information and the second current information are opposite in current direction, so that the first driving part and the second driving part move in opposite directions.

According to an exemplary embodiment, as shown in fig. 9, the control method further comprises the steps of:

step S201: acquiring first interval information between a lens assembly and an imaging plane;

step S202: acquiring second interval information between the lens assembly and the detection assembly;

step S203: acquiring a first preset value;

step S204: determining an absolute value of a difference between the first pitch information and the second pitch information according to the first pitch information and the second pitch information;

step S205: the absolute value of the difference is smaller than or equal to a first preset value, and control information is sent to the motion driving part to drive the lens assembly to move relative to the detection assembly or drive the detection assembly to move relative to the lens assembly.

In this embodiment, the implementation manners of step S201, step S202, and step S204 are the same as those of step S101 to step S103, and will not be described here again. In step S205, when the absolute value of the difference is smaller than or equal to the first preset value, it is indicated that the detection component is located on the imaging plane, or the lens component and the detection component need to move a smaller distance to complete focusing, so that control information is sent to the motion driving portion, and the focusing process can be rapidly completed by only driving the lens component to move or the detection component to move, thereby saving electric energy while meeting the user requirements.

According to an exemplary embodiment, as shown in fig. 10, the control method further includes the steps of:

step S301: acquiring first interval information between a lens assembly and an imaging plane;

step S302: acquiring second interval information between the lens assembly and the detection assembly;

step S303: acquiring a first preset value;

step S304: determining an absolute value of a difference between the first pitch information and the second pitch information according to the first pitch information and the second pitch information;

step S305: judging whether the absolute value of the difference value is larger than a first preset value, if so, executing a step S306, otherwise, executing a step S307;

step S306: transmitting control information to the motion driving part to drive the lens assembly and the detection assembly to move in opposite directions;

step S307: and sending control information to the motion driving part to drive the lens assembly to move relative to the detection assembly or drive the detection assembly to move relative to the lens assembly.

In this embodiment, the implementation manners of step S201, step S202, and step S204 are the same as those of step S101 to step S103, and will not be described here again. In step S305, the magnitude relation between the absolute value of the judgment difference and the first preset value is judged, when the absolute value of the judgment difference is greater than the first preset value, it is indicated that the detection component is not located on the imaging plane Y and the lens component and the detection component need to move a larger distance to complete focusing, and step S306 is executed to drive the lens component and the detection component to move in opposite directions by sending control information to the motion driving part, so as to realize rapid focusing. When the absolute value of the difference is less than or equal to the first preset value, it is indicated that the detection component is located on the imaging plane, or the lens component and the detection component need to move a small distance to complete focusing, so that step S307 is performed to send control information to the motion driving part, and the focusing process can be rapidly completed by only driving the lens component to move or the detection component to move, thereby saving electric energy while meeting the user requirements. In this embodiment, when the control method is executed, there is no sequence among the three steps of step S301, step S302, and step S303.

According to an exemplary embodiment, the present embodiment provides a control apparatus, as shown in fig. 7, including an acquisition module 100, a determination module 200, and a control module 300. The acquisition module 100 is configured to acquire first pitch information between the lens assembly and the imaging plane, and the acquisition module 100 is further configured to acquire second pitch information between the lens assembly and the detection assembly; the determining module 200 is configured to determine an absolute value of a difference between the first pitch information and the second pitch information according to the first pitch information and the second pitch information; the control module 300 is configured to send control information to the motion driving part to drive the lens assembly and the detection assembly to move in opposite directions when the absolute value of the difference is greater than a first preset value.

The control module 300 is further configured to send control information to the motion driving portion to drive the lens assembly to move relative to the detection assembly or drive the detection assembly to move relative to the lens assembly when the absolute value of the difference is less than or equal to a first preset value.

According to an exemplary embodiment, the present embodiment provides a terminal device, which includes an image pickup apparatus, and the image pickup apparatus controls the image pickup apparatus using a control method of the image pickup apparatus to achieve focusing during photographing by the image pickup apparatus.

According to an exemplary embodiment, the present embodiment provides a terminal device, including a processor; a memory for storing processor-executable instructions; wherein the processor is configured to execute a control method of the image pickup apparatus.

The imaging device provided by the disclosure has the following beneficial effects: the lens component and the detection component are controlled to move in opposite directions through the motion driving part, so that the distance between the lens component and the detection component can be changed more quickly, and the focusing speed is improved.

The application also provides a terminal device, and the terminal can be a mobile phone, a tablet computer, a notebook computer, a video camera, a camera and other devices.

In one exemplary embodiment, referring to fig. 12, a terminal device 400 may include one or more of the following components: a processing component 402, a memory 404, a power component 406, a multimedia component 408, an audio component 410, an input/output (I/O) interface 412, a sensor component 414, and a communication component 416.

The processing component 402 generally controls overall operation of the terminal device 400, such as operations associated with display, telephone calls, data communications, camera operations, and recording operations. The processing component 402 may include one or more processors 420 to execute instructions to perform all or part of the steps of the methods described above. Further, the processing component 402 can include one or more modules that facilitate interaction between the processing component 402 and other components. For example, the processing component 402 may include a multimedia module to facilitate interaction between the multimedia component 408 and the processing component 402.

The memory 404 is configured to store various types of data to support operations at the terminal device 400. Examples of such data include instructions for any application or method operating on the terminal device 400, contact data, phonebook data, messages, pictures, video, and the like. The memory 404 may be implemented by any type or combination of volatile or nonvolatile memory devices such as Static Random Access Memory (SRAM), electrically erasable programmable read-only memory (EEPROM), erasable programmable read-only memory (EPROM), programmable read-only memory (PROM), read-only memory (ROM), magnetic memory, flash memory, magnetic or optical disk.

The power component 406 provides power to the various components of the terminal device 400. Power components 406 may include a power management system, one or more power sources, and other components associated with generating, managing, and distributing power for terminal device 400.

The multimedia component 408 includes a screen between the terminal device 400 and the user that provides an output interface. In some embodiments, the screen may include a Liquid Crystal Display (LCD) and a Touch Panel (TP). If the screen includes a touch panel, the screen may be implemented as a touch screen to receive input signals from a user. The touch panel includes one or more touch sensors to sense touches, swipes, and gestures on the touch panel. The touch sensor may sense not only the boundary of a touch or sliding action, but also the duration and pressure associated with the touch or sliding operation. In some embodiments, the multimedia component 408 includes a front camera module and/or a rear camera module. The front camera module and/or the rear camera module may receive external multimedia data when the terminal device 400 is in an operation mode, such as a photographing mode or a video mode. Each of the front camera module and the rear camera module may be a fixed optical lens system or have focal length and optical zoom capabilities.

The audio component 410 is configured to output and/or input audio signals. For example, the audio component 410 includes a Microphone (MIC) configured to receive external audio signals when the terminal device 400 is in an operational mode, such as a call mode, a recording mode, and a voice recognition mode. The received audio signals may be further stored in the memory 404 or transmitted via the communication component 416. In some embodiments, audio component 410 further includes a speaker for outputting audio signals.

The I/O interface 412 provides an interface between the processing component 402 and peripheral interface modules, which may be a keyboard, click wheel, buttons, etc. These buttons may include, but are not limited to: homepage button, volume button, start button, and lock button.

The sensor assembly 414 includes one or more sensors for providing status assessment of various aspects of the terminal device 400. For example, the sensor assembly 414 may detect an on/off state of the terminal device 400, a relative positioning of the assemblies, such as a display and keypad of the terminal device 400, the sensor assembly 414 may also detect a change in position of the terminal device 400 or a component of the terminal device 400, the presence or absence of a user's contact with the terminal device 400, an orientation or acceleration/deceleration of the terminal device 400, and a change in temperature of the terminal device 400. The sensor assembly 414 may include a proximity sensor configured to detect the presence of nearby objects in the absence of any physical contact. The sensor assembly 414 may also include a light sensor, such as a CMOS or CCD image sensor, for use in imaging applications. In some embodiments, the sensor assembly 414 may also include an acceleration sensor, a gyroscopic sensor, a magnetic sensor, a pressure sensor, or a temperature sensor.

The communication component 416 is configured to facilitate communication between the terminal device 400 and other devices, either wired or wireless. The device 700 may access a wireless network based on a communication standard, such as WiFi, 2G, 3G, 4G, 5G, or a combination thereof. In one exemplary embodiment, the communication component 416 receives broadcast signals or broadcast-related information from an external broadcast management system via a broadcast channel. In one exemplary embodiment, the communication component 416 further includes a Near Field Communication (NFC) module to facilitate short range communications. For example, the NFC module may be implemented based on Radio Frequency Identification (RFID) technology, infrared data association (IrDA) technology, ultra Wideband (UWB) technology, bluetooth (BT) technology, and other technologies.

In an exemplary embodiment, the terminal device 400 may be implemented by one or more Application Specific Integrated Circuits (ASICs), digital Signal Processors (DSPs), digital Signal Processing Devices (DSPDs), programmable Logic Devices (PLDs), field Programmable Gate Arrays (FPGAs), controllers, microcontrollers, microprocessors, or other electronic elements for executing the methods described above.

In an exemplary embodiment, a non-transitory computer readable storage medium is also provided, such as memory 404, including instructions executable by processor 420 of terminal device 400 to perform the above-described method. For example, the non-transitory computer readable storage medium may be ROM, random Access Memory (RAM), CD-ROM, magnetic tape, floppy disk, optical data storage device, etc. The instructions in the storage medium, when executed by the processor of the terminal, enable the terminal to perform the method shown in the above embodiments.

Other embodiments of the invention will be apparent to those skilled in the art from consideration of the specification and practice of the invention disclosed herein. This application is intended to cover any variations, uses, or adaptations of the invention following, in general, the principles of the invention and including such departures from the present disclosure as come within known or customary practice within the art to which the invention pertains. It is intended that the specification and examples be considered as exemplary only, with a true scope and spirit of the invention being indicated by the following claims.

It is to be understood that the invention is not limited to the precise arrangements and instrumentalities shown in the drawings, which have been described above, and that various modifications and changes may be effected without departing from the scope thereof. The scope of the invention is limited only by the appended claims.

Claims (14)

1. An image pickup apparatus, comprising:

a lens assembly;

a detection assembly;

a movement driving part connected with the lens assembly, wherein the movement driving part is used for driving the lens assembly to move along the optical axis direction of the lens assembly;

the motion driving part is connected with the detection component and is used for driving the detection component to move along the optical axis direction of the lens component;

and a driving control part electrically connected with the motion driving part to drive the lens assembly and the detection assembly to move along the optical axis direction of the lens assembly in opposite directions.

2. The image pickup apparatus according to claim 1, wherein the movement driving section includes a first driving section and a second driving section that are independent of each other, the first driving section being connected to the lens assembly, the second driving section being connected to the detection assembly; or alternatively, the process may be performed,

the driving part comprises a first driving part and a second driving part, and the first driving part and the second driving part are integrated into a whole.

3. The image pickup apparatus according to claim 2, wherein an internal structure arrangement order of the first driving section is opposite to an internal structure arrangement order of the second driving section;

or alternatively, the process may be performed,

the winding direction of the coil of the first driving part is opposite to the winding direction of the coil of the second driving part;

or alternatively, the process may be performed,

the connection mode of the positive electrode and the negative electrode of the first driving part is opposite to the connection mode of the positive electrode and the negative electrode of the second driving part;

or alternatively, the process may be performed,

the current input to the first driving part and the current input to the second driving part are opposite in direction.

4. The image pickup apparatus according to claim 2, wherein the movement driving section includes a base, the first driving section and the second driving section being mounted to the base;

and the inner structure of the first driving part and the inner structure of the second driving part are symmetrically arranged by taking the central line of the base as a symmetry axis.

5. The image pickup apparatus according to claim 2, wherein the drive control section includes a first control chip and a second control chip that are independent of each other, the first control chip being connected to the first drive section, the second control chip being connected to the second drive section; and/or the number of the groups of groups,

the driving control part comprises a total control chip, the total control chip comprises a first control branch and a second control branch, the first control branch is connected with the first driving part, and the second control branch is connected with the second driving part.

6. The image capturing apparatus of claim 1, wherein the detection assembly comprises an image sensor and a circuit board coupled to the image sensor.

7. The image pickup apparatus according to claim 1, wherein the motion driving section includes a voice coil motor and a piezoelectric motor.

8. A control method of an image pickup apparatus, applied to a drive control section, the control method comprising:

acquiring first interval information between a lens assembly and an imaging plane;

acquiring second interval information between the lens assembly and the detection assembly;

determining an absolute value of a difference between the first pitch information and the second pitch information according to the first pitch information and the second pitch information;

the absolute value of the difference is larger than a first preset value, and control information is sent to the motion driving part to drive the lens component and the detection component to move in opposite directions.

9. The control method according to claim 8, characterized in that the control method includes:

the absolute value of the difference is smaller than or equal to the first preset value, and control information is sent to the motion driving part to drive the lens assembly to move relative to the detection assembly or drive the detection assembly to move relative to the lens assembly.

10. The control method according to claim 8, characterized in that the sending control information to the motion driving section includes:

a first driving part for transmitting first current information to the motion driving part;

transmitting second current information to a second driving part of the motion driving part;

the current directions of the first current information and the second current information are opposite.

11. A control device of an image pickup apparatus, characterized in that the control device of the image pickup apparatus includes:

an acquisition module for acquiring first interval information between the lens assembly and the imaging plane;

the acquisition module is also used for acquiring second interval information between the lens component and the detection component;

a determining module, configured to determine an absolute value of a difference between the first pitch information and the second pitch information according to the first pitch information and the second pitch information;

and the control module is used for sending control information to the motion driving part when the absolute value of the difference value is larger than a first preset value so as to drive the lens assembly and the detection assembly to move in opposite directions.

12. The control device of an image capturing apparatus according to claim 11, wherein the determining module is further configured to send control information to the motion driving section to drive the lens assembly to move relative to the detecting assembly or to drive the detecting assembly to move relative to the lens assembly, the absolute value of the difference being less than or equal to the first preset value.

13. A terminal device comprising the image pickup apparatus according to any one of claims 1 to 7.

14. A terminal device, comprising:

a processor;

a memory for storing processor-executable instructions;

wherein the processor is configured to perform the control method of any one of claims 8 to 10.

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