WO2018082061A1 - Camera module and control method on the basis of lens tilting controllable motor and fast focus sensor - Google Patents

Abstract

A camera module and a control method on the basis of lens tilting controllable motor and fast focus sensor, which relate to the technical field of miniature camera modules and which may solve the problem of lens initial installation position error or the problem of additional parasitic deflection generated during and after a lens movement required for auto-focusing. The camera module includes a focusing motor (1) and a phase auto-focusing image sensor (2); the focusing motor (1) includes a motor stator (12) and a motor rotor (11) disposed in the motor stator (12); the motor rotor (11) includes a lens holder (121), three or more sets of electromagnetic drivers (125), which may drive a lens unit (122) to move in parallel along an axis that is perpendicular to the phase auto-focusing image sensor (2) and move in an obliquely deflected manner along X and Y directions that are perpendicular to the axis, are disposed between an outer side wall of the lens holder (121) and an inner wall of the motor stator (12). The present invention may reduce the automation equipment requirements for producing PDAF cameras, simplifying back-end debugging and correction technologies and process requirements, thereby increasing qualified product rate and reducing production cost.

Description

 Camera module and control method based on lens tilt controllable motor and fast focus sensor

 Technical field

 [0001] The present invention relates to the field of miniature camera modules, and more particularly to a structure and a control method for a high-pixel integrated camera module used in a smart phone.

 Background technique

 [0002] The increasing popularity of high-pixel, highly integrated cameras in smartphones has made the quality of mobile phone photos closer and closer to ordinary digital cameras. For a conventional digital camera, because of its large size and space, it can allow more complicated optical paths and sensors and driving mechanisms, thereby enabling an optical anti-shake structure and a phase detecting sensor to realize optical image stabilization and phase detection fast autofocus. However, high-pixel mobile phone cameras do not contain some optical and mechanical components of ordinary digital cameras. This lack of hardware will undoubtedly make the camera phone less effective than a digital camera, and the focus speed is not as fast as that of a normal digital camera. Specifically, most of the current camera phones have only one autofocus motor to achieve the near-focus telephoto conversion function. The control of the lens is at most a single dimension to bring the lens closer to or away from the image sensor. Although the technology of today's autofocus camera modules is quite mature and widely used. However, the resolution of image sensors in today's smartphone cameras is increasing, and in some high-end phones, image sensors exceeding 10 million pixels are already common. When the resolution of the image sensor is higher, the image quality is degraded due to excessive blurring of the photographed image, especially in the low-light environment.

 [0003] In response to the above problems, in order to make the camera effect of the camera phone closer to the digital camera, many internationally renowned mobile phone focus motor manufacturers have begun to develop three-axis optical anti-shake and auto focus motors, and develop smart phone camera models. Phase detection autofocus technology in the group.

 [0004] Phase Detection Auto in Smartphone Camera Module (Phase Detection Auto

Focus, PDAF) is a new technology that quickly and accurately determines the direction and position of the lens movement by means of a detection phase unit embedded in the image sensor, thereby moving the lens in the axial direction of the lens to achieve fast focus (see application number 201280048151.3). Invention patent application). Smartphone camera module has special The detection phase unit detected in the image sensor detects the phase signal and can be quickly calculated by the upper processor to find the appropriate focus position to achieve fast focus. The reason why phase detection autofocus (PDAF) as a new technology of smart phone camera is still not able to quickly occupy the market is that the PDAF camera still has a lot of difficulties in the manufacturing process, and the general module factory will still encounter Great production yields, automated back-end equipment and new process capabilities. On the one hand, in the manufacturing process of the assembly of the smartphone camera, the assembly parameters such as the parallelism and the central coaxiality of the image sensor, the focus motor and the lens are extremely high. Therefore, the PDAF camera must use high-precision Active Alignment (AA) equipment to participate in the production, and the expensive equipment means that the equipment manufacturer's automated production equipment is extremely demanding, otherwise it will be extremely The impact of yield and production efficiency. On the other hand, the ordinary AF motor has only one focus coil that controls the lens to move back and forth along the optical axis direction. In the process, the lens will have an unavoidable parasitic tilting motion, which may cause the detection signal of the phase detecting unit to be disordered and cannot be used. The focus calculation, and therefore the requirements for the quality and performance of the AF motor are also extremely high. At the same time, the camera solution as a fast focus also requires an AF motor to respond quickly. It can be seen that the drive motor applied to the PDAF camera module can be completed by a non-ordinary focus motor. In these aspects, the challenges in the production yield of PDAF cameras, production automation equipment requirements (that is, production costs) and back-end debugging correction techniques and means (ie, new process capability and production efficiency) are extremely high. Make it difficult to popularize the application.

[0005] Since the deflection of the lens or the like affects the phase detection signal of the phase detection image sensor, optical image stabilization is also difficult to apply to the smartphone camera module in the same manner as the phase detection sensor.

 technical problem

 [0006] In summary, the object of the present invention is to solve the following problems: 1. The image quality is blurred due to human hand shake; 2. The initial installation position error of the lens or the lens movement process and the movement completion required for autofocusing After the additional parasitic deflection generated by the image sensor phase detection unit, the detection signal is disordered; 3. Autofocus 吋 lens movement or image loss caused by additional parasitic deflection after the lens movement is completed The problem; 4, the production process has a low complexity yield, and proposes a camera module and control method based on the lens tilt controllable motor and the fast focus sensor. Problem solution

Technical solution [0007] In order to solve the technical problem proposed by the present invention, the technical solution adopted is:

 [0008] A camera module based on a lens tilt controllable motor and a fast focus sensor includes a focus motor and a phase autofocus image sensor disposed at a bottom of the focus motor; the focus motor includes a motor stator and is disposed in the motor stator The motor rotor is characterized in that: the motor rotor comprises a lens holder, which is disposed in the lens part of the lens holder, and three or more sets of driving lens components are arranged between the outer side wall of the lens holder and the inner wall of the motor stator, and the image is perpendicular to the phase autofocus image sensor. The electromagnetic drive of the axis of the parallel movement and the obliquely yaw movement of the X and Y directions of the axis, the lens mount can perform at least three degrees of freedom with respect to the stator.

 [0009] As a technical solution further defined by the present invention, the following includes:

 [0010] Each of the electromagnetic actuators includes a coil disposed on an outer sidewall of the lens holder and a set of magnets corresponding to the coils disposed on an inner wall of the motor stator, and the side surfaces of the magnet and the coils are different in polarity. Upper magnetic pole face and lower magnetic pole face.

 [0011] The motor stator is provided with a metal terminal, and the coils of the three or more sets of electromagnetic actuators are electrically connected to the metal terminals on the motor stator through a flexible connecting circuit.

 [0012] Each set of magnets is disposed at a position between adjacent sets of coils, and four sets of magnets of the four sets of electromagnetic actuators are respectively disposed at four corners of the inner wall of the motor stator.

[0013] Each of the sets of magnets comprises a single-sided bipolar magnet.

 [0014] Alternatively, each set of magnets is composed of two magnets arranged side by side, and the magnetic pole directions of the two magnets are opposite.

 [0015] The lens component is a single lens or a lens group; the upper end and the lower end of the lens holder are elastically connected to the motor stator through the upper elastic piece and the lower elastic piece, respectively.

 [0016] The motor stator includes a base, a metal cover and a cover; the base is engaged with the metal cover, and the lower elastic piece is clamped and fixed between the base and the metal cover, and the metal terminal is fixed on the base, and the upper end surface of the base is provided The flexible connecting circuit is electrically connected to the four sets of electromagnetic actuators and the metal terminals; the metal cover is disposed in the outer cover, and the upper elastic piece is clamped and fixed between the top surface of the metal cover and the inner wall of the top of the outer cover.

[0017] An upper gasket is disposed between the upper elastic piece and the top surface of the metal cover.

[0018] The control method of the camera module is characterized in that the control method comprises:

[0019] a focus control method for driving the lens component along the phase perpendicular to the phase by controlling each group of electromagnetic actuators The axis of the image sensor is moved in parallel;

 [0020] an optical anti-shake control method, by controlling each group of electromagnetic actuators, causing each group of electromagnetic actuators to generate a magnetic difference, thereby driving the lens components to perform oblique tilting movement in the X direction and the \ or ¥ direction perpendicular to the axis;

 [0021] The parasitic deflection control method controls each group of electromagnetic actuators according to the phase information detected by the phase detecting unit of the phase autofocus image sensor, so that each group of electromagnetic actuators generates a corresponding magnetic difference, thereby driving the lens component to be perpendicular to The X-direction of the axis and the tilting of the \ or ¥ direction to compensate and eliminate the initial mounting position and the parasitic deflection movement of the lens during focus translation and after the focus shift to ensure the phase detection unit detection of the phase autofocus image sensor The phase information is in accordance with the preset value;

 [0022] an anti-shake fast focus control method, by controlling each group of electromagnetic actuators, driving the lens components to move in parallel along an axis perpendicular to the phase autofocus image sensor and obliquely tilting in an X direction and a \/¥ direction perpendicular to the axis Motion, the phase information parameter table is detected for the phase autofocus image sensor to compensate for the effect of eliminating the optical image stabilization on the detected phase information of the phase autofocus image sensor, thereby achieving optical image stabilization and fast focus control.

 Advantageous effects of the invention

 Beneficial effect

 [0023] The beneficial effects of the present invention are: The present invention is a miniature camera module based on a controllable lens tilt optical image stabilization motor and a phase detection fast focus image sensor, which can be combined with a gyroscope motion sensor and an optical image stabilization motor driver and the like. By using, each set of electromagnetic actuators is disposed between the outer sidewalls of the four different directions of the lens mount and the inner wall of the motor stator, thereby driving the lens components to move parallel to the axis perpendicular to the phase autofocus image sensor and perpendicular to the X direction of the axis And the tilting movement in the Y direction. It can reduce the production automation equipment requirements of the PDAF camera, simplify the back-end debugging correction technology and process requirements, thereby improving production yield and reducing production costs. The control method of the invention can realize the compatibility between the PDAF and the optical image stabilization function, so that the smart phone camera module has the functions of optical image stabilization and PDAF, thereby greatly improving the fast focus and anti-shake photography of the camera smartphone. user experience.

 Brief description of the drawing

 DRAWINGS

1 is a schematic perspective view of the present invention; 2 is a schematic exploded view of the present invention;

3 is a schematic structural view of a focus motor of the present invention;

[0027] FIG. 4 is a first position state of the lens component of the present invention;

[0028] FIG. 5 is an initial position state 2 of the lens component of the present invention;

 6 is a schematic diagram of a parasitic deflection state of a lens during autofocusing of a lens component of the present invention or after autofocusing is completed;

 7 is a schematic diagram of a state in which the lens component of the present invention is subjected to deflection compensation during autofocusing or after autofocusing is completed;

 [0031] FIG. 8 is a schematic diagram showing the principle of generating a magnetic difference 四 by the four groups of electromagnetic actuators of the present invention;

9 is a schematic diagram of the principle of the present invention applied to a smart phone;

10 is a schematic view showing the working principle of the tilting and focusing movement displacement of the lens component according to the present invention;

11 is a phase autofocus image sensor detection phase information parameter table.

 BEST MODE FOR CARRYING OUT THE INVENTION

 BEST MODE FOR CARRYING OUT THE INVENTION

The structure and method of the present invention will be further described with reference to the drawings and preferred embodiments of the invention.

 Referring to FIGS. 1 through 8, the present invention is based on a lens tilt controllable motor and a fast focus sensor camera module, including a focus motor 1 and a phase autofocus image sensor 2 disposed at the bottom of the focus motor 1. For convenience of explanation, the axis perpendicular to the phase autofocus image sensor is the Z axis, and the X direction and the Y direction perpendicular to the axis are the X axis and the Y axis, and the plane formed by the X axis and the Y axis is parallel to the phase autofocus image. The sensor is illuminated. The focus motor 1 of the present invention is used to drive the optical imaging lens component to move parallel along the Z axis, or to be tilted off-axis about the X-axis, or to be tilted off-axis about the Y-axis, or two or three of these three motions. get on. The phase autofocus image sensor 2 is an existing image sensor with a detection phase unit embedded therein, which can quickly and accurately determine the direction and position of the movement of the lens component, and provide a signal basis for the drive control of the focus motor.

 The specific structure of the focus motor 1 includes a motor stator 11 and a motor rotor 12 provided in the motor stator 11.

[0038] The motor rotor 12 includes a lens holder 121 disposed in the lens unit 121 of the lens holder 121. The lens unit 122 may be a single lens or a lens group composed of a plurality of lenses; the upper end and the lower end of the lens holder 121 respectively The upper elastic piece 123 and the lower elastic piece 124 are elastically coupled to the motor stator 11, and three sets of driving lens parts 122 are disposed between the outer wall of the lens housing 121 in three different directions and the inner wall of the motor stator 11 along the axis perpendicular to the phase autofocus image sensor. An electromagnetic actuator 125 that moves obliquely and yaws in the X and Y directions perpendicular to the axis; preferably three sets of driving lens members 122 are disposed between the outer wall of the four different directions of the lens holder 121 and the inner wall of the motor stator 11 The axis of the phase autofocus image sensor moves in parallel and the electromagnetic actuator 125 is tilted to move in a direction perpendicular to the X and Y directions of the axis.

Each of the electromagnetic actuators 125 includes a coil 1251 disposed on an outer sidewall of the lens mount 121 and a set of magnets 1252 disposed on the inner wall of the motor stator 11 and the coil 1251. The side of the magnet 1252 corresponding to the coil 1251 includes a pole. The upper and lower magnetic pole faces are distributed differently above and below, as shown in FIG. Each of the sets of magnets 12 52 may be a single-sided bipolar magnet; or two magnets may be combined side by side, and the magnetic directions of the two magnets are opposite. In order to save the overall volume of the present invention, each set of magnets 1252 is disposed between the adjacent two sets of coils 1251, and four sets of magnets 1252 of the four sets of electromagnetic actuators are respectively disposed at four corners of the inner wall of the motor stator 11.

 [0040] In order to facilitate the power supply to the coils 1251 of the four electromagnetic actuators 125, the motor rotor 12 is moved by the upper elastic piece 123 and the lower elastic piece 124, and the metal terminal 110 may be disposed on the motor stator 11. The coils 1251 of the four sets of electromagnetic actuator horses are electrically connected to the metal terminals 110 on the motor stator 11 via flexible connecting circuits 126.

 [0041] The specific structure of the motor stator 11 includes a base 111, a metal cover 112 and a cover 113. The base 111 is engaged with the metal cover 112, and the lower elastic piece 124 is clamped and fixed between the base 111 and the metal cover 112. 1 10 is fixed on the base 111, the flexible connecting circuit 126 is electrically connected to the metal terminal 110 on the base 111 and the four sets of electromagnetic actuators; the metal cover 112 is disposed in the outer cover 113, and the upper elastic piece 123 is clamped and fixed on the top surface of the metal cover 112. Between the inner wall of the top of the outer cover 113. An upper spacer 114 is disposed between the upper elastic piece 123 and the top surface of the metal cover 112 as needed to achieve electrical isolation.

 [0042] The control method of the camera module of the present invention includes: a focus control method, an optical image stabilization control method, a parasitic deflection control method, and an anti-shake fast focus control method.

 [0043] a focus control method for driving the lens component 122 by controlling four sets of electromagnetic actuators to move parallel along an axis perpendicular to the phase autofocus image sensor;

[0044] The optical anti-shake control method, the four groups of electromagnetic actuators are solid-generated by controlling four sets of electromagnetic actuators Poor, thereby driving the tilting deflection movement of the lens component along the X direction and the \ or ¥ direction perpendicular to the axis;

 [0045] a parasitic deflection control method, which controls four sets of electromagnetic actuators according to phase information detected by a phase detecting unit of the phase autofocus image sensor, so that four sets of electromagnetic actuators generate corresponding magnetic differences, thereby driving the lens components to be perpendicular to The X-direction of the axis and the tilting of the \ or ¥ direction to compensate and eliminate the initial mounting position and the parasitic deflection movement of the lens during focus translation and after the focus shift to ensure the phase detection unit detection of the phase autofocus image sensor The phase information is in accordance with the preset value;

 [0046] An anti-shake fast focus control method, by controlling four sets of electromagnetic actuators, driving the lens components to move in parallel along an axis perpendicular to the phase autofocus image sensor and to tilt obliquely in an X direction and a \/¥ direction perpendicular to the axis Motion, the phase information parameter table is detected for the phase autofocus image sensor to compensate for the effect of eliminating the optical image stabilization on the detected phase information of the phase autofocus image sensor, thereby achieving optical image stabilization and fast focus control.

 [0047] That is, the present invention is based on a controllable lens tilting optical image stabilization motor, a detectable phase autofocus image sensor, using four coils and four pairs of magnets to form four electromagnetic actuators, with the upper shrapnel, The lower shrapnel forms a three-dimensional degree of freedom miniature camera lens drive motor. By controlling the electromagnetic driving forces of the four electromagnetic actuators respectively, the tilting deflection movement of the lens parallel to the axis of the imaging sensor and perpendicular to the axis is realized. The autofocus function is achieved by the parallel movement of the lens components. Optical anti-shake is achieved by deflection of the lens components. The deflection of the lens component compensates for and eliminates the initial mounting position and the parasitic deflection motion of the lens during focus translation and after the focus shift, and ensures that the image sensor phase detection unit detects the signal in accordance with the phase focus image sensor application requirements. Compensate the phase information offset table of the PDAF image sensor by lens deflection and focus motion to compensate for the effect of eliminating optical image stabilization on the detected phase information of the PDAF image sensor, thereby achieving optical image stabilization and compatibility with the fast phase focusing function of the PDAF image sensor. .

 [0048] The automatic debugging system of the focus motor solves the problem of low production yield and low production rate, reduces the production automation equipment requirements of the PDAF camera head, simplifies the back-end debugging correction technology and process requirements, improves the production yield, and reduces the production cost.

[0049] The optical anti-shake is implemented by an optical anti-shake algorithm according to the corresponding driving lens component of the gyroscope detecting the motion signal. [0050] In the prior art, in the processing of the error of the initial mounting position of the lens, it is often necessary to add an expensive optical automatic calibration device (AA machine) and a complicated process flow based on the production process of the common autofocus module. The parasitic tilting movement that is difficult to avoid during the movement of the lens needs to be realized by specially testing and screening high-precision AF motors, which involve complicated and expensive equipment and complicated process flow to make the PDAF smartphone camera. The module is costly to produce and has a very low yield. At the same time, high-pixel autofocus smartphone cameras often have problems with blurred images caused by human hands. These aspects of the production automation equipment requirements and back-end debugging correction technology and means of the PDAF camera are extremely high, resulting in low production yield and efficiency, making the PDAF smart phone camera difficult to popularize. In contrast, the camera module and the control method of the present invention can eliminate the special equipment and process flow on the basis of the production process of the ordinary auto-focus module, and only pass the existing automatic optical anti-shake correction system. Software (Auto Turner, AT) can be done.

 [0051] The invention can realize the flexible compatibility of the smart phone camera module, does not require special automation equipment input and increases complicated process flow, can greatly improve the production yield and efficiency of the camera, and has the same simple structure and integration. With the high degree, the selected number of parts is small, and the price is economical, the introduction of the invention will enable the OIS+PDAF smart phone camera to achieve mass production and popularization and application value.

 [0052] The principle of the present invention will be further described with reference to FIGS. 4 through 11.

 4 and FIG. 5, there may be an inclination angle with respect to the phase autofocus image sensor 2 at the initial position of the motor rotor 12 due to processing or assembly errors, which may cause the target scene to be automatically focused with the phase image. The angle of the sensor 2 cannot be clearly imaged on the phase autofocus image sensor 2; similarly, as shown in Fig. 6, since the motor rotor 12 performs the process of autofocusing along the Z axis or after the motion is completed, if not By compensating, it is easy to cause the lens component 122 on the motor rotor 12 to generate a parasitic tilting motion during the process of moving the focus along the Z axis due to the machining assembly error of the mechanical system and the error of the characteristics of the mechanical parts, thereby affecting the image quality. As shown in Fig. 8, in the example of the present invention, the image can be clearly imaged to the phase autofocus image sensor 2 by adjusting the deflection of the lens member 122 by adjusting the electromagnetic actuators at different positions.

9 is applied to a smartphone 吋, the focus motor 1 and the phase autofocus image sensor 2 of the present invention are used in conjunction with the single-chip microcomputer 4 and the motion detecting gyro 5, and the mobile phone main control circuit is connected through the mobile phone connector 6. . [0055] FIG. 10 shows the principle of moving the lens stabilization 吋 phase information in the optical image stabilization operation mode based on the optical image stabilization motor and the phase detection image sensor based on the tilt of the controllable lens. The phase detection image sensor 2 works on the basis of the change of the phase information detected by moving the lens along the optical axis direction to calculate the position at which the lens is accurately focused, and then drives the lens to quickly reach the point to form a fast focus. However, when the lens is deflected, the detected phase information will also be moved. For example, when the lens moves along the optical axis, the tilt position is d, and the tilt angle of the lens is Θ吋, and the detected position of the phase is shifted out by P ( pL, pR) The pixel position, and thus the relationship between the phase change information and the tilt angle of the lens and the focus shift displacement.

 11 shows an optical anti-shake motor and a phase detecting sensor based on the tilt of the controllable lens to realize the lens tilting and the focus shifting and the shifting displacement of the lens in the optical image stabilization and the autofocus operation. Relationship form. Repeat the experiment of Fig. 10 in the y direction according to a certain rule, and obtain the offset pixel distance table of the y-direction lens deflection and the lens optical axis axial movement 吋 phase detection information. Similarly, an offset pixel distance table of the X-direction lens deflection and the axial movement of the lens optical axis and the phase detection information can be obtained. Since the camera lens is rotationally symmetrical in the X and y directions perpendicular to each other, the tilt angle of the lens in the other direction and the offset pixel distance value of the phase detection information can be determined by the corresponding mutually perpendicular X directions and y. The offset pixel of the direction is obtained by vector synthesis from the values in the table. Using the obtained offset pixel distance compensation to eliminate the influence of the tilt of the lens during the optical image stabilization process on the phase detection information, the influence of the axial movement of the lens on the phase detection information can be obtained. The compensated phase detection information can achieve fast calculation and accurate focus. The position of the lens is the same as that of the driving lens to achieve the fast focus and the compatible lens tiltable optical image stabilization function.

 [0057] The detailed flow and steps of the debugging can be changed. The example only shows that the phase detection signal compensation is performed according to the lens optical anti-shake deflection command of the current lens after the stroke is changed, thereby improving the phase detection focus accuracy and the focusing speed.

Claims

Claim  [Claim 1] A camera module based on a lens tilt controllable motor and a fast focus sensor includes a focus motor and a phase autofocus image sensor disposed at a bottom of the focus motor; the focus motor includes a motor stator and a motor stator The motor rotor is characterized in that: the motor rotor comprises a lens holder, which is disposed in the lens component of the lens mount, and three or more sets of driving lens components are disposed between the outer side wall of the lens mount and the inner wall of the motor stator, and the autofocus is perpendicular to the phase. An electromagnetic actuator in which the axis of the image sensor moves in parallel and is obliquely deflected in the X and Y directions of the axis, the lens mount can perform movement of at least three degrees of freedom with respect to the stator.  [Claim 2] The camera module based on the lens tilt controllable motor and the fast focus sensor according to claim 1, wherein: each of the electromagnetic actuators comprises a coil disposed on an outer side wall of the lens holder and A set of magnets corresponding to the coils are disposed on the inner wall of the motor stator, and the side surfaces of the magnets corresponding to the coils include upper and lower magnetic pole faces having different polarities.  [Claim 3] The camera module based on the lens tilt controllable motor and the fast focus sensor according to claim 2, wherein: the motor stator is provided with a metal terminal, and three or more sets of electromagnetic drive horse coils The metal terminal on the motor stator is electrically connected through a flexible connecting circuit.  [Claim 4] The camera module based on the lens tilt controllable motor and the fast focus sensor according to claim 2, wherein: each set of magnets is disposed at a position between adjacent two sets of coils, and four sets of electromagnetics The four sets of magnets of the driver are respectively disposed at four corners of the inner wall of the motor stator.  [Claim 5] The camera module based on the lens tilt controllable motor and the fast focus sensor according to claim 2, wherein: each of the sets of magnets comprises a single-sided bipolar magnet.  [Claim 6] The camera module based on the lens tilt controllable motor and the fast focus sensor according to claim 2, wherein: each set of magnets is composed of two magnets side by side, and the magnetic poles of the two magnets The direction is the opposite. [Claim 7] The camera module based on the lens tilt controllable motor and the fast focus sensor according to claim 1, wherein: the lens component is a single lens or a lens group; upper and lower ends of the lens holder The elastic piece is elastically connected to the motor stator through the upper elastic piece and the lower elastic piece, respectively. [Claim 8] The camera module based on the lens tilt controllable motor and the fast focus sensor according to claim 7, wherein: the motor stator comprises a base, a metal cover and a cover; and the base cooperates with the metal cover The lower elastic piece is clamped and fixed between the base and the metal cover, the metal terminal is fixed on the base, and the upper end surface of the base is provided with a flexible connecting circuit electrically connecting each group of electromagnetic driver and metal terminal; the metal cover is disposed in the outer cover The upper elastic piece is clamped and fixed between the top surface of the metal cover and the inner wall of the top of the outer cover.  [Claim 9] The camera module based on the lens tilt controllable motor and the fast focus sensor according to claim 8, wherein: the upper elastic piece and the top surface of the metal cover are provided with an upper spacer [Claim 10] The control method of the camera module according to any one of claims 1 to 9, wherein the control method comprises:  The focus control method is implemented by controlling each group of electromagnetic actuators to drive the lens components to move in parallel along an axis perpendicular to the phase autofocus image sensor;  The optical image stabilization control method, by controlling each group of electromagnetic actuators, causes each group of electromagnetic actuators to generate a magnetic difference, thereby driving the lens component to perform oblique tilting movement in the X direction and the \ or ¥ direction perpendicular to the axis;  a parasitic deflection control method, which controls each group of electromagnetic actuators according to phase information detected by a phase detecting unit of the phase autofocus image sensor, so that each group of electromagnetic actuators generates a corresponding magnetic difference, thereby driving the lens component along the axis perpendicular to the axis Tilt deflection of the X direction and \ or ¥ direction to compensate and eliminate the initial mounting position and the parasitic deflection movement of the lens during focus translation and after the focus shift to ensure the phase detected by the phase detection unit of the phase autofocus image sensor The information meets the preset value;  An anti-shake fast focus control method, by controlling each group of electromagnetic actuators, driving the lens components to move in parallel along an axis perpendicular to the phase autofocus image sensor and to perform a tilting movement along an X direction and a \/¥ direction perpendicular to the axis, The phase autofocus image sensor detects the phase information parameter table to compensate for the effect of eliminating optical image stabilization on the detected phase information of the phase autofocus image sensor, thereby achieving optical image stabilization and fast focus control.