CN211791756U

CN211791756U - Motor system, camera module and electronic equipment

Info

Publication number: CN211791756U
Application number: CN202020528004.8U
Authority: CN
Inventors: 江传东
Original assignee: Nanchang OFilm Optoelectronics Technology Co Ltd
Current assignee: Jiangxi Jinghao Optical Co Ltd
Priority date: 2020-04-10
Filing date: 2020-04-10
Publication date: 2020-10-27
Anticipated expiration: 2030-04-10

Abstract

The utility model relates to a motor system, module and electronic equipment make a video recording installs the slope correcting unit between the outer wall of the inner wall of motor system's casing and camera lens carrier, when inclining between camera lens and outside sensitization chip, can guarantee that camera lens optical axis is perpendicular with outside sensitization chip according to the slope correction that carries on of actual image self-adaptation to the imaging quality of the module is made a video recording in effectual assurance. By adopting the scheme, the finally obtained imaging quality of the camera module can also meet the requirement of a user on high quality by adopting general LHA equipment, so that the assembly process of the camera module can be effectively simplified; meanwhile, special AA glue cannot be used without adopting VCM AA equipment, so that the productivity is effectively improved, the equipment, glue and labor cost are saved, and the increase of the thickness of the module due to the use of the AA glue is avoided; meanwhile, the inclination of the lens is swung, so that the image deviation caused by shaking is offset or compensated by the deviation of light, and the inclination anti-shaking of the lens can be realized.

Description

Motor system, camera module and electronic equipment

Technical Field

The present application relates to the field of imaging technologies, and in particular, to a motor system, a camera module and an electronic device

Background

With the rapid development of science and technology, high-precision cameras are increasingly popularized in electronic equipment such as mobile phones, and the appearance of the high-precision cameras brings great convenience to photographing and shooting in daily life of people. In the assembly process of the camera module, the assembly of each part has accumulated tolerance, and the tolerance can directly influence the imaging quality of the camera module. Along with the popularization of the high pixels of the camera sensor, the large aperture of the lens and the like, the traditional assembling mode can not meet the process requirements and the requirements of users on high quality more and more, and the imaging quality, namely the yield, of the camera module is seriously influenced.

Therefore, expensive VCM AA (Active Alignment) equipment is introduced in the assembly process of the camera module, special AA glue is also needed in the assembly process of the equipment, although the AA glue can improve the imaging quality and the yield of the camera module, the AA glue is affected by the structure, the algorithm and the like, extra processes such as a dial sheet and a turntable are needed in the manufacturing process, and the productivity of the camera module is seriously affected. Therefore, the conventional camera module has a disadvantage of poor assembling reliability.

SUMMERY OF THE UTILITY MODEL

Accordingly, it is desirable to provide a motor system, a camera module and an electronic device for solving the problem of poor assembling reliability of the conventional camera module.

A motor system, comprising: a housing; the lens carrier is movably accommodated in the shell and used for bearing a lens; the inclination correcting device is arranged between the inner wall of the shell and the outer wall of the lens carrier; the automatic focusing device is arranged between the inner wall of the shell and the outer wall of the lens carrier and is used for driving the lens to move for focusing; and the processing device is connected with the inclination correction device, the automatic focusing device and the external photosensitive chip and is used for controlling the inclination correction device to perform inclination correction according to the actual image to obtain corrected lens inclination information so as to enable the lens optical axis of the lens carrier to be vertical to the external photosensitive chip.

Above-mentioned motor system installs slope correcting unit between the outer wall of the inner wall of casing and camera lens carrier, when inclining between camera lens and outside sensitization chip, can be according to the slope correction that carries on of actual image self-adaptation, guarantees that camera lens optical axis is perpendicular with outside sensitization chip to the effectual imaging quality who guarantees the module of making a video recording. Through the scheme, VCM AA equipment is not needed for assembling the camera module, and general LHA equipment is adopted to ensure that the finally obtained imaging quality of the camera module meets the requirement of a user on high quality, so that the assembling process of the camera module can be effectively simplified; meanwhile, special AA glue cannot be used without adopting VCM AA equipment, so that the productivity is effectively improved, the equipment, glue and labor cost are saved, and the increase of the thickness of the module due to the use of the AA glue is avoided; meanwhile, the deviation of light rays is realized to offset or compensate the image deviation caused by shaking by swinging the inclination of the Lens, and Lens inclination anti-shaking (Lens tilt OIS) can be realized. Therefore, when the motor system is applied to the camera module, the motor system has the advantage of high assembling reliability.

In one embodiment, the auto-focusing device includes an auto-focusing magnet and an auto-focusing coil, the auto-focusing magnet is fixedly disposed on an inner wall of the housing, the auto-focusing coil is disposed at a position opposite to the auto-focusing magnet on the lens carrier, and the auto-focusing coil is connected to the processing device. In the embodiment, the coil generates magnetic force by electrifying the automatic focusing coil, so that the lens carrier and the lens move to realize focusing operation by generating force action between the automatic focusing coil and the automatic focusing magnet, and the lens is driven to move by a corresponding distance by controlling the current flowing into the coil, so that the automatic focusing lens has the advantage of high driving reliability.

In one embodiment, the tilt correction device includes a tilt magnet fixedly disposed on an inner wall of the housing, and a tilt coil disposed at a position opposite to the tilt magnet on the lens carrier, the tilt coil being connected to the processing device. In this embodiment, the coil generates a magnetic force by energizing the tilt coil, so that a force is generated between the tilt coil and the tilt magnet to move the lens carrier and the lens to realize a tilt correction operation, and the lens is driven to move by a corresponding distance by controlling the magnitude of the current flowing into the coil, thereby having the advantage of high driving reliability.

In an embodiment, the system further includes a first elastic sheet and a second elastic sheet, one end of the first elastic sheet is fixedly connected to the housing, the other end of the first elastic sheet is fixedly connected to the lens carrier, one end of the second elastic sheet is fixedly connected to the housing, and the other end of the second elastic sheet is fixedly connected to the lens carrier. In this embodiment, the lens carrier and the housing are movably connected by the arrangement of the first elastic sheet and the second elastic sheet, when the tilt correction device is powered on to perform tilt correction on the lens in the lens carrier or the automatic focusing device is powered on to perform focusing drive on the lens in the lens carrier, the lens carrier and the corresponding lens are moved by pulling up the first elastic sheet or the second elastic sheet, and when the tilt correction device or the automatic focusing device is powered off, the lens carrier and the lens are reset by resetting the first elastic sheet or the second elastic sheet.

In one embodiment, the motor system further comprises a magnetic field detector disposed at the tilt correction device, the magnetic field detector being connected to the processing device. In this embodiment, the tilt correction device is provided with a magnetic field detector for detecting the magnetic field in real time, and the detection result is sent to the processing device for analysis, thereby effectively realizing the tilt correction operation of the lens.

In one embodiment, the magnetic field detector is a hall sensor. In the embodiment, the Hall sensor is used as a magnetic field detection device, the magnetic field condition in the inclination correction device is effectively fed back to the processing device for analysis, and the magnetic field detection device has the advantage of high reliability in magnetic field detection.

In one embodiment, the processing device is disposed inside the housing. The setting position of the processing device is not unique, and in this embodiment, the processing device may be set inside the housing, so as to ensure the timeliness of signal transmission between the processing device and the tilt correction device or the auto-focusing device.

In one embodiment, the lens tilt information is a focus curve representing a correspondence relationship between a movement amount of the lens in the motor system and a Spatial Frequency Response (SFR) at each feature point in the actual image. In this embodiment, the lens tilt correction analysis is performed by using the focusing curve of the correspondence between the movement amount of the lens in the motor system and the spatial frequency response value at each feature point in the actual image, so that information about whether the lens is tilted and the size of the tilt can be intuitively and accurately obtained, and the reliability of the tilt correction operation is effectively improved.

The utility model provides a camera module, includes sensitization chip, data processing base plate and foretell motor system, sensitization chip set up in the data processing base plate, motor system with the data processing base plate sets up relatively.

Above-mentioned module of making a video recording installs slope correcting unit between the outer wall of the inner wall of casing and camera lens carrier, when inclining between camera lens and outside sensitization chip, can be according to the slope correction that carries on of actual image self-adaptation, guarantees that camera lens optical axis is perpendicular with outside sensitization chip to the effectual imaging quality who guarantees the module of making a video recording. Through the scheme, VCM AA equipment is not needed for assembling the camera module, and general LHA equipment is adopted to ensure that the finally obtained imaging quality of the camera module meets the requirement of a user on high quality, so that the assembling process of the camera module can be effectively simplified; meanwhile, special AA glue cannot be used without adopting VCM AA equipment, so that the productivity is effectively improved, the equipment, glue and labor cost are saved, and the increase of the thickness of the module due to the use of the AA glue is avoided; meanwhile, the inclination of the lens is swung, so that the image deviation caused by shaking is offset or compensated by the deviation of light, and the inclination anti-shaking of the lens can be realized. Therefore, the camera module of the embodiment has the advantage of strong assembling reliability.

An electronic device comprises the camera module.

Above-mentioned electronic equipment, its module of making a video recording installs slope correcting unit between the inner wall of casing and the outer wall of camera lens carrier, when inclining between camera lens and outside sensitization chip, can be according to the correction of inclining of carrying on of actual image self-adaptation, guarantees that camera lens optical axis is perpendicular with outside sensitization chip to the effectual imaging quality who guarantees the module of making a video recording. Through the scheme, VCM AA equipment is not needed for assembling the camera module, and general LHA equipment is adopted to ensure that the finally obtained imaging quality of the camera module meets the requirement of a user on high quality, so that the assembling process of the camera module can be effectively simplified; meanwhile, special AA glue cannot be used without adopting VCM AA equipment, so that the productivity is effectively improved, the equipment, glue and labor cost are saved, and the increase of the thickness of the module due to the use of the AA glue is avoided; meanwhile, the inclination of the lens is swung, so that the image deviation caused by shaking is offset or compensated by the deviation of light, and the inclination anti-shaking of the lens can be realized. Its module of making a video recording has the advantage that the equipment reliability is strong.

Drawings

FIG. 1 is a schematic diagram of a motor system according to an embodiment;

FIG. 2 is a diagram illustrating an actual image capture process according to an embodiment;

FIG. 3 is a schematic view of an embodiment of a focusing curve;

FIG. 4 is a schematic view of a focusing curve in another embodiment;

FIG. 5 is a schematic view of a motor system according to another embodiment;

fig. 6 is a schematic structural diagram of a camera module according to an embodiment.

Detailed Description

To facilitate an understanding of the present application, the present application will now be described more fully with reference to the accompanying drawings. Preferred embodiments of the present application are illustrated in the accompanying drawings. This application may, however, be embodied in many different forms and should not be construed as limited to the embodiments set forth herein. Rather, these embodiments are provided so that this disclosure will be thorough and complete.

Referring to fig. 1, a motor system includes: a housing 10; a lens carrier 20 movably accommodated in the housing 10 for carrying a lens; an inclination correcting device 30 disposed between an inner wall of the housing 10 and an outer wall of the lens carrier 20; the automatic focusing device 40 is arranged between the inner wall of the shell 10 and the outer wall of the lens carrier 20 and is used for driving the lens carrier 20 to move for focusing; and the processing device is connected with the inclination correcting device 30, the automatic focusing device 40 and the external photosensitive chip (not shown) and is used for controlling the inclination correcting device 30 to perform inclination correction according to the actual image to obtain corrected lens inclination information so that the lens optical axis of the lens carrier 20 is perpendicular to the external photosensitive chip.

Specifically, the operation of the processing device in controlling the tilt correction device to perform the tilt correction according to the actual image comprises the following steps: acquiring lens inclination information of the motor system according to the actual image; carrying out algorithm correction according to the lens inclination information to obtain an inclination compensation quantity of the motor system; a tilt correction device of the tilt compensation amount control motor system performs tilt correction according to the tilt compensation amount. The Motor is a Voice Coil Motor (VCM), and the main principle of the VCM is to control the lens carrier 20 associated with the Motor to move in a permanent magnetic field by changing the dc current of the Coil in the Motor. The lens carrier 20 is generally a hollow sleeve structure, and the lens is fixed in the hollow inner cavity of the sleeve. The automatic focusing device 40 is disposed in the motor system housing 10, when the processing device in the motor system sends a control signal to the automatic focusing device 40 to make the automatic focusing device 40 access a current of a corresponding magnitude, under the driving of the automatic focusing device 40, the lens carrier 20 accommodated in the motor system housing 10 will move under the magnetic force of the automatic focusing device 40, and the lens will also move along with the movement of the lens carrier, thereby realizing the focusing operation, and at this time, the light will be sensed by the external light sensing chip through the lens. After focusing is completed, the processing device obtains an actual image in the current state, which is obtained by analyzing the external photosensitive chip, analyzes the actual image to obtain a tilt compensation amount corresponding to the lens carrier 20 in the current state, and obtains a control signal according to the tilt compensation amount to control the tilt correction device 30 to access a current with a corresponding magnitude, the tilt correction device 30 moves the lens carrier 20 (i.e., moves the lens) under the action of the current to perform tilt correction, and finally the optical axis of the lens carrier 20 is perpendicular to the external photosensitive chip, thereby effectively ensuring that the motor system meets the requirement of a user on high-quality imaging.

In the motor system, the inclination correction device 30 is installed between the inner wall of the housing 10 and the outer wall of the lens carrier 20, and when the lens carrier 20 and the external photosensitive chip are inclined, the inclination correction device can perform the inclination correction in a self-adaptive manner according to an actual image, so that the optical axis of the lens carrier 20 is perpendicular to the external photosensitive chip, and the imaging quality of the camera module is effectively guaranteed. Through the scheme, VCM AA equipment is not needed for assembling the camera module, and general LHA equipment is adopted to ensure that the finally obtained imaging quality of the camera module meets the requirement of a user on high quality, so that the assembling process of the camera module can be effectively simplified; meanwhile, special AA glue cannot be used without adopting VCM AA equipment, so that the productivity is effectively improved, the equipment, glue and labor cost are saved, the increase of the thickness of a module caused by the use of the AA glue is avoided, meanwhile, the image deviation caused by the shake is offset or compensated by the deviation of light rays through swinging the inclination of the lens carrier 20, and the anti-shake of the inclined lens can be realized. The motor system has the advantage of high assembling reliability when being applied to the camera module.

It should be noted that the way the processing means derive the tilt compensation amount of the lens carrier 20 from the actual image is not exclusive, and in one embodiment, the processing means first obtains lens tilt information of the motor system from the actual image; then, carrying out algorithm correction according to the lens inclination information to obtain an inclination compensation amount of the motor system, wherein the inclination compensation amount is used for controlling an inclination correction device 30 of the motor system to carry out inclination correction and obtain corrected lens inclination information; finally, judging whether the motor system meets the specification or not according to the corrected lens inclination information; if yes, burning and storing the inclination compensation quantity; if not, returning to continue to execute the operation of acquiring the lens inclination information of the motor system. In this embodiment, the tilt correction operation is performed again when the motor system does not meet the specification, and the tilt correction operation is stopped only when the motor system meets the specification.

Further, in one embodiment, the lens tilt information is a focus curve, and the focus curve represents the corresponding relationship between the movement amount of the lens carrier 20 in the motor system and the spatial frequency response value at each feature point in the actual image. It should be noted that the number and the selected positions of the feature points in the actual image are not unique, and a larger number of feature points may be selected for analysis in order to obtain a more accurate tilt compensation amount. In order to understand the technical solution of the present application, please refer to fig. 2, in this embodiment, the actual image is taken as a rectangle, and five feature points are selected for analysis, wherein the five feature points are respectively a diagonal intersection point of the actual image and four corners of the actual image.

After the processing device analyzes and processes the actual image, a focusing curve as shown in fig. 3 is obtained, wherein Z1, Z2, Z3 and Z4 are the sizes of the offset center points of the upper left corner, the lower left corner, the upper right corner and the lower right corner of the actual image, that is, the moving amount of the lens carrier 20 in the motor system. The larger the values of Z1, Z2, Z3, and Z4 indicate the greater the degree of tilt of the lens carrier 20 with respect to the external photosensitive chip. It can be understood that, in order to obtain a more accurate focusing curve, a corresponding spatial frequency response value should be obtained in a clear focusing state. At this time, the processing device performs analysis and calculation according to Z1, Z2, Z3 and Z4, and obtains that the lens carrier 20 needs to be moved by Tx and Ty in the horizontal direction and the vertical direction, respectively (i.e. the tilt compensation amount), so that the values of Z1, Z2, Z3 and Z4 are small enough that the lens carrier 20 is not tilted significantly with respect to the photo-sensor chip, i.e. the optical axis of the lens carrier 20 is considered to be perpendicular to the photo-sensor chip, and the corresponding focusing curve is transformed as shown in fig. 4.

It is to be understood that the values of Z1, Z2, Z3 and Z4 are small enough and not exclusive, and in one embodiment, a threshold value of the amount of movement may be preset in the processing device according to the actual imaging quality requirement, and when Z1, Z2, Z3 and Z4 are all less than or equal to the preset threshold value of the amount of movement, it indicates that the degree of tilt of the lens carrier 20 after correction at this time meets the requirement, i.e., the motor system meets the specification. It should be noted that the size of the preset movement amount threshold is not exclusive and may be set to 5 microns in one embodiment. After the lens carrier 20 is corrected, the corresponding Tx and Ty values can be burned and stored as the initial state parameters of the lens carrier 20 in the motor system, and when the motor system is applied to the camera module to shoot, the tilt correction of the lens carrier 20 is directly performed according to the Tx and Ty values, so that the imaging of the camera module can meet the high-quality imaging requirement of a user.

It should be noted that the lens tilt correction operation of the motor system may be performed once after the camera module is assembled, and after the corresponding tilt compensation amount is obtained, high-quality imaging meeting the user requirements can be obtained directly according to the tilt compensation amount in the subsequent operation. In another embodiment, the tilt correction operation may be performed once every time the image is captured, thereby obtaining a higher image quality image.

Referring to fig. 5, in an embodiment, the motor system further includes a first elastic piece 50 and a second elastic piece 60, one end of the first elastic piece 50 is fixedly connected to the housing 10, and the other end is fixedly connected to the lens carrier 20; one end of the second elastic sheet 60 is fixedly connected to the housing 10, and the other end is fixedly connected to the lens carrier 20.

Specifically, in the present embodiment, the lens carrier 20 and the housing 10 are movably connected by the arrangement of the first elastic sheet 50 and the second elastic sheet 60, when the tilt calibrating device 30 is powered on to calibrate the tilt of the lens in the lens carrier 20 or the auto-focusing device 40 is powered on to drive the lens in the lens carrier 20 to focus, the lens carrier 20 and the corresponding lens are moved by pulling up the first elastic sheet 50 or the second elastic sheet 60, and when the tilt calibrating device 30 or the auto-focusing device 40 is powered off, the lens carrier 20 and the lens are reset by resetting the first elastic sheet 50 or the second elastic sheet 60.

Referring to fig. 5, in one embodiment, the tilt calibrating device 30 includes a tilt magnet 31 and a tilt coil 32, the tilt magnet 31 is fixedly disposed on the inner wall of the housing 10, the tilt coil 32 is disposed at a position opposite to the tilt magnet 31 on the lens carrier 20, and the tilt coil 32 is connected to a processing device (not shown).

Specifically, the arrangement of the tilt magnet 31 and the tilt coil 32 inside the housing 10 is not exclusive, as long as the lens carrier 20 can move by a corresponding amount under the interaction between the magnetic field of the tilt coil 32 and the magnetic field of the tilt magnet 31 when the tilt coil 32 is energized to generate the magnetic field. In this embodiment, the tilted magnet 31 is fixed on the inner wall of the housing 10, the tilted coil 32 is disposed around the lens carrier 20, and the coil on the lens carrier 20 generates a lorentz force after being energized, so that the forced movement of the coil drives the movement of the lens carrier 20 and the lens. The tilt correction operation is performed by energizing the tilt coil 32 to generate a magnetic force in the coil and generating a force between the tilt coil and the tilt magnet 31 to move the lens carrier 20, and the lens carrier 20 is driven to move a corresponding distance by controlling the magnitude of the current flowing in the coil, which has an advantage of high driving reliability.

Referring to fig. 5, in one embodiment, the auto-focusing device 40 includes an auto-focusing magnet 41 and an auto-focusing coil 42, the auto-focusing magnet 41 is fixedly disposed on the inner wall of the housing 10, the auto-focusing coil 42 is disposed at a position opposite to the auto-focusing magnet 41 of the lens carrier 20, and the auto-focusing coil 42 is connected to a processing device (not shown).

The arrangement of the autofocus magnet 41 and autofocus coil 42 inside the housing 10 is not exclusive, as long as the lens carrier 20 and the autofocus magnet 41 can move to a corresponding extent by the interaction between the magnetic field of the autofocus coil 42 and the magnetic field of the autofocus magnet 41 when the autofocus coil 42 is energized to generate a magnetic field. Similarly, in the present embodiment, the autofocus device 40 includes a magnet and a coil, which are oppositely disposed, wherein the autofocus magnet 41 is fixed to the inner wall of the housing 10, the autofocus coil 42 is disposed around the lens carrier 20, the coil generates a magnetic force by energizing the autofocus coil 42, so that a force is generated between the autofocus magnet 41 and the lens carrier 20 to move the lens, thereby achieving a focusing operation, and the lens carrier 20 and the lens are driven to move by controlling the current flowing into the coil by a corresponding distance.

Referring to fig. 5, the motor system further includes a magnetic field detector 70, the magnetic field detector 70 is disposed on the tilt calibrating device 30, and the magnetic field detector 70 is connected to a processing device (not shown).

Specifically, in the present embodiment, the magnetic field detector 70 is provided in the tilt correction device 30 to detect the magnetic field in real time, and the detection result is sent to the processing device for analysis, thereby effectively achieving the tilt correction operation of the lens.

Further, in one embodiment, the magnetic field detector 70 is a hall sensor. In the embodiment, the hall sensor is used as a magnetic field detection device, so that the magnetic field condition in the inclination correction device 30 is effectively fed back to the processing device for analysis, and the detection reliability of the magnetic field is high.

In one embodiment, the processing device is disposed inside the housing 10 or disposed outside the housing 10. It is understood that the setting position of the processing device is not exclusive, and in the present embodiment, the processing device may be set inside the housing 10 to ensure the timeliness of signal transmission between the processing device and the tilt correction device 30 or the auto-focusing device 40, or set outside the housing 10 to avoid the processing device from affecting the magnetic field of the tilt correction device 30 or the auto-focusing device 40. That is, the processing device is disposed inside the housing 10 or outside the housing 10, and may be selected according to actual requirements, so as to achieve the corresponding lens tilt correction operation.

Referring to fig. 6, a camera module includes a photo sensor chip 80, a data processing substrate 90 and the motor system, the photo sensor chip 80 is disposed on the data processing substrate 90, and the motor system is disposed opposite to the data processing substrate 90.

Specifically, an automatic focusing device 40 is disposed in the housing 10 of the motor system, and when a processing device in the motor system sends a control signal to the automatic focusing device 40 to make the automatic focusing device 40 access a current of a corresponding magnitude, the lens carrier 20 and the lens contained in the housing 10 of the motor system will move under the magnetic force of the automatic focusing device 40 under the driving of the automatic focusing device 40, so as to realize the focusing operation. After focusing is completed, the processing device obtains an actual image in the current state, analyzes the actual image to obtain a tilt compensation amount corresponding to the lens in the lens carrier 20 in the current state, obtains a control signal according to the tilt compensation amount to control the tilt correction device 30 to access a current with a corresponding magnitude, and the tilt correction device 30 moves the lens carrier 20 and the lens to perform tilt correction under the action of the current, so that the optical axis of the lens 20 is perpendicular to the photosensitive chip 80, and the motor system is effectively ensured to meet the requirement of a user on high-quality imaging. It should be noted that, in one embodiment, the data processing substrate 90 may be specifically a PCB, and other processing devices such as the photosensitive chip 80 are connected to the PCB, so as to implement a complete image capturing operation.

It is to be understood that the way in which the processing device obtains the tilt compensation amount of the lens according to the actual image is not exclusive, and in one embodiment, the processing device first obtains the lens tilt information of the motor system according to the actual image; then, carrying out algorithm correction according to the lens inclination information to obtain an inclination compensation amount of the motor system, wherein the inclination compensation amount is used for controlling an inclination correction device 30 of the motor system to carry out inclination correction and obtain corrected lens inclination information; finally, judging whether the motor system meets the specification or not according to the corrected lens inclination information; if yes, the tilt compensation quantity is burned and stored. If not, the operation of obtaining the lens inclination information of the motor system according to the actual image is returned until the motor system meets the specification, namely that the optical axis of the lens in the motor system is perpendicular to the photosensitive chip 80.

Above-mentioned module of making a video recording installs slope correcting unit 30 between the inner wall of casing 10 and the outer wall of camera lens carrier 20, when inclining between camera lens and sensitization chip 80, can be according to the slope correction that carries on of actual image self-adaptation, guarantees that camera lens optical axis is perpendicular with sensitization chip 80 to the effectual imaging quality who guarantees the module of making a video recording. Through the scheme, VCM AA equipment is not needed for assembling the camera module, and general LHA equipment is adopted to ensure that the finally obtained imaging quality of the camera module meets the requirement of a user on high quality, so that the assembling process of the camera module can be effectively simplified; meanwhile, special AA glue cannot be used without adopting VCM AA equipment, so that the productivity is effectively improved, the equipment, the glue and the labor cost are saved, the increase of the thickness of a module caused by the use of the AA glue is avoided, meanwhile, the image deviation caused by the shake is offset or compensated by the deviation of light rays through the inclination of the swinging lens, and the anti-shake of the inclined lens can be realized. The camera module of the embodiment has the advantage of high assembling reliability.

An electronic device comprises the camera module.

Specifically, in the camera module used in the electronic device, the motor system is provided with the auto-focusing device 40 in the housing 10 of the motor system, and when the processing device in the motor system sends a control signal to the auto-focusing device 40 to make the auto-focusing device 40 access a current with a corresponding magnitude, the lens carrier 20 and the lens contained in the housing 10 of the motor system will move under the magnetic force of the auto-focusing device 40 under the driving of the auto-focusing device 40, so as to implement the focusing operation. After focusing is completed, the processing device obtains an actual image in the current state, analyzes the actual image to obtain a tilt compensation amount corresponding to the lens in the current state, obtains a control signal according to the tilt compensation amount to control the tilt correction device 30 to access a current with a corresponding magnitude, and the tilt correction device 30 enables the lens carrier 20 and the lens to move to perform tilt correction under the action of the current, so that the optical axis of the lens is perpendicular to the photosensitive chip 80, and the motor system is effectively ensured to meet the requirement of a user on high-quality imaging. It should be noted that, in one embodiment, the data processing substrate 90 may be specifically a PCB, and other processing devices such as the photosensitive chip 80 are connected to the PCB, so as to implement a complete image capturing operation.

Above-mentioned electronic equipment, its module of making a video recording installs slope correcting unit 30 between the inner wall of casing 10 and the outer wall of camera lens carrier 20, when inclining between camera lens and sensitization chip 80, can be according to the slope correction that carries on of actual image self-adaptation, guarantees that camera lens optical axis is perpendicular with sensitization chip 80 to the effectual imaging quality who guarantees the module of making a video recording. Through the scheme, VCM AA equipment is not needed for assembling the camera module, and general LHA equipment is adopted to ensure that the finally obtained imaging quality of the camera module meets the requirement of a user on high quality, so that the assembling process of the camera module can be effectively simplified; meanwhile, special AA glue cannot be used even if VCM AA equipment is not adopted, so that the productivity is effectively improved, the equipment, the glue and the labor cost are saved, the phenomenon that the thickness of the module is increased due to the use of the AA glue is avoided, meanwhile, the image deviation caused by shaking is offset or compensated by the deviation of light rays through the inclination of the swinging lens, the shaking prevention of the lens inclination can be realized, and the camera module has the advantage of high assembling reliability.

It should be noted that the type of the electronic device is not exclusive, and any device having a camera function may be used, such as a mobile phone, a computer, or a tablet.

The technical features of the embodiments described above may be arbitrarily combined, and for the sake of brevity, all possible combinations of the technical features in the embodiments described above are not described, but should be considered as being within the scope of the present specification as long as there is no contradiction between the combinations of the technical features.

The above-mentioned embodiments only represent some embodiments of the present invention, and the description thereof is specific and detailed, but not to be construed as limiting the scope of the present invention. It should be noted that, for those skilled in the art, without departing from the spirit of the present invention, several variations and modifications can be made, which are within the scope of the present invention. Therefore, the protection scope of the present invention should be subject to the appended claims.

Claims

1. A motor system, comprising:

a housing;

the lens carrier is movably accommodated in the shell and used for bearing a lens;

the inclination correcting device is arranged between the inner wall of the shell and the outer wall of the lens carrier;

the automatic focusing device is arranged between the inner wall of the shell and the outer wall of the lens carrier and is used for driving the lens to move for focusing;

and the processing device is connected with the inclination correction device, the automatic focusing device and the external photosensitive chip and is used for controlling the inclination correction device to perform inclination correction according to the actual image to obtain corrected lens inclination information so as to enable the lens optical axis of the lens carrier to be vertical to the external photosensitive chip.

2. The motor system of claim 1, wherein the auto-focusing device comprises an auto-focusing magnet and an auto-focusing coil, the auto-focusing magnet is fixedly disposed on an inner wall of the housing, the auto-focusing coil is disposed at a position opposite to the auto-focusing magnet on the lens carrier, and the auto-focusing coil is connected to the processing device.

3. The motor system according to claim 1, wherein the tilt correcting means includes a tilt magnet fixedly provided on an inner wall of the housing and a tilt coil provided at a position opposite to the tilt magnet on the lens carrier, the tilt coil being connected to the processing means.

4. The motor system according to claim 1, further comprising a first resilient plate and a second resilient plate, wherein one end of the first resilient plate is fixedly connected to the housing, the other end of the first resilient plate is fixedly connected to the lens carrier, one end of the second resilient plate is fixedly connected to the housing, and the other end of the second resilient plate is fixedly connected to the lens carrier.

5. The motor system of claim 1, further comprising a magnetic field detector disposed at the tilt correction device, the magnetic field detector being coupled to the processing device.

6. The motor system of claim 5, wherein the magnetic field detector is a Hall sensor.

7. The motor system of claim 1, wherein the processing device is disposed inside the housing.

8. The motor system according to any one of claims 1 to 7, wherein the lens tilt information is a focus curve representing a correspondence between a movement amount of the lens in the motor system at each characteristic point in the actual image and a spatial frequency response value.

9. A camera module, comprising a photosensitive chip, a data processing substrate, and the motor system of any one of claims 1 to 8, wherein the photosensitive chip is disposed on the data processing substrate, and the motor system is disposed opposite to the data processing substrate.

10. An electronic device comprising the camera module of claim 9.