Abstract: The present disclosure relates to a technical field of camera modules, and in particular to a stabilizing-focusing motor and an application module thereof. The stabilizing-focusing motor includes a stabilizing structure and a focusing structure, where the stabilizing structure includes an outer ball holder, an inner ball holder, balls, a stabilizing magnet, a stabilizing coil, and a stabilizing circuit board; and the focusing structure includes a second magnet holder, a lens carrier, a connecting spring, a focusing magnet, a focusing coil, and a focusing circuit board. The present disclosure can provide a multi-axis degree of freedom (DOF), reduce a power consumption and a size of a micro gimbal stabilizer (MGS) camera module, lessen impacts of an attitude error on stabilization performance, make assembly less difficult, and increase a maximum stabilizing angle.

Abstract: A non-sensor type closed-loop stabilization control algorithm comprises the following steps: 1, reading all voltages Vk?1 and currents Ik?1 for driving a multi-axis stabilization motor; 2, calculating and outputting all coil resistances Rk?1 in the multi-axis stabilization motor; 3, reading all the coil resistances, voltages and currents in the steps 1 and 2, and calculating and outputting counter electromotive force Ek?1 of all the coils in the multi-axis stabilization motor; 4, reading an stabilization compensation angle ?k, each coil resistance and the counter electromotive force, and calculating and outputting a closed-loop stabilization control Fk; and 5, then waiting for a time step k=k+1, and repeating the steps in the steps 1 to 4. It aims to add a closed-loop control element to a motor without a sensor to achieve an excellent stabilization effect and to reduce the risk of image blurring caused by resonance.

Abstract: A micro gimbal stabilizer (MGS) camera module includes an MGS and a camera module, where the MGS includes gimbal drive assemblies, a movable gimbal portion, and a static gimbal portion movably connected to the movable gimbal portion; a gimbal magnet is provided on the movable gimbal portion; the camera module includes a movable focusing portion, a static focusing portion, a focusing drive assembly, and a focusing feedback assembly; the static focusing portion is relatively fixed with the movable gimbal portion; and a position magnet is provided on the static focusing portion. In response to a focusing process of the camera module, the focusing position sensor is relatively fixed with the gimbal magnet and the focusing magnet, which can effectively reduce influences of magnetic fields of the gimbal magnet and the focusing magnet on the focusing position sensor.

Abstract: A camera stabilizer module includes a fixed structure including at least two split outer ball seats, where rotating fulcrums are provided on each of the outer ball seats, and there are at least four rotating fulcrums in total; a first circuit board provided with a fixed portion, an elastic portion and a connecting portion that are sequentially connected; a plurality of balls quantitatively consistent with the rotating fulcrums and rotatably connected to the rotating fulcrums in one-to-one correspondence; a movable structure provided in the outer ball seats; and a driving structure capable of driving the movable structure to rotate around at least two rotational axes.

Abstract: Disclosed are a spring stabilizer system and a lens stabilizing-focusing device using the system. The spring stabilizer system includes at least two stabilizing springs, where the stabilizing springs each include a fixed portion, an elastic connecting arm, and a movable arm; a first connecting groove is formed in the fixed portion; one end of the elastic connecting arm is connected to the first connecting groove; a ratio of a length of a vertical midline of the elastic connecting arm to a maximum distance from an edge of the elastic connecting arm to the vertical midline is greater than 5:1; a ratio of a width of the elastic connecting arm to a thickness of the elastic connecting arm is not less than 2:1; a second connecting groove is formed in the movable portion; and the second connecting groove is connected to the other end of the elastic connecting arm.

Abstract: A circuit board having multiple degrees of freedom, comprises a flat board and a conductive and flexible unit disposed on the flat board. The conductive and flexible unit comprises: an inner support plate, an outer support plate, and at least one flexible connector; a hollow portion is provided on the outer support plate; the inner support plate and the flexible connector are disposed in the hollow portion; the inner and the outer support plates are connected by the flexible connector; the flexible connector comprises an outer connecting portion, an inner connecting portion corresponding to the outer connecting portion, and an extension located between the outer connecting portion and the inner connecting portion. The circuit board has a simple and compact structure; the production efficiency is high; costs are low; a multi-axis flexible anti-shaking effect can be achieved without folding a flexible structure; the resilience performance is good.

Abstract: A magnet arrangement structure suitable for a voice coil motor is provided by the present invention, comprise a magnet holder and a coil holder coaxial with the magnet holder, wherein 2n groups of magnets are provided on the magnet holder, each group of magnets is symmetrically provided around a central axis of the magnet holder, each group of magnets comprises at least one magnet, and each magnet has two magnetic poles; the surfaces facing the central axis of each group of magnets comprise two different magnetic poles, and each magnetic pole is opposite to the magnetic pole; and each group of magnets also corresponds to a coil. Compared with the traditional art, the magnetic field intensity passing through the coil can be improved, power consumption is reduced, electromagnetic force is increased, and the benefits of reducing weight, cost and size of the motor are achieved.

Abstract: A non-sensor type closed-loop stabilization control algorithm comprises the following steps: 1, reading all voltages Vk?1 and currents Ik?1 for driving a multi-axis stabilization motor; 2, calculating and outputting all coil resistances Rk?1 in the multi-axis stabilization motor; 3, reading all the coil resistances, voltages and currents in the steps 1 and 2, and calculating and outputting counter electromotive force Ek?1 of all the coils in the multi-axis stabilization motor; 4, reading an stabilization compensation angle ?k, each coil resistance and the counter electromotive force, and calculating and outputting a closed-loop stabilization control Fk; and 5, then waiting for a time step k=k+1, and repeating the steps in the steps 1 to 4. It aims to add a closed-loop control element to a motor without a sensor to achieve an excellent stabilization effect and to reduce the risk of image blurring caused by resonance.

Abstract: A camera stabilizer module includes: a housing; a sensor assembly including a lens and an image sensor; an elastic circuit board including a first board body and a second board body, the image sensor being connected to the first board body, the first board body being connected to the second board body through a connecting portion, the connecting portion extending toward an outward side of a surface of the first board body, and the second board body being connected to the first housing; a stabilizer assembly including a stabilizing coil and a stabilizing magnet that are facing each other; and a controller electrically connected to the elastic circuit board, where the stabilizing coil is provided around the image sensor, and the stabilizing magnet is facing the stabilizing coil and provided around the lens.

Abstract: A spring system, comprising at least three springs. The centerlines of the at least three springs are not in the same plane, and the centerlines of the springs all pass through the same rotation center. A lens anti-shaking device using the spring system, comprising: a fixing assembly comprising a housing, a positioning base, and a magnet group, the positioning base being disposed on the housing, and the magnet group being disposed on the positioning base; and a movable assembly comprising a coil group, a lens, a lens carrier, an image sensor, and a circuit board, the lens carrier being mounted on the positioning base by means of the spring system, the lens being mounted on the lens carrier, the circuit board being mounted on the positioning base, and the image sensor being disposed on the circuit board.

Abstract: A magnetic interference-resistant translation-type optical image stabilization voice coil motor includes a base, a spring plate, a lens carrier, at least three groups of magnets, and a housing. The base, the housing, and the groups of magnets are connected together to form a fixed structure. The groups of magnets are disposed inside the housing. Each group of magnets includes a first magnet and a second magnet stacked on the first magnet. The first magnet and the second magnet have opposite magnetic field directions. The lens carrier includes a body and coils disposed on the body. The number of the coils is the same as the number of the groups of magnets. Each of the coils is disposed opposite to one of the groups of magnets. The spring plate is connected to the lens carrier and one of the first magnet and the second magnet.

Abstract: A circuit board having multiple degrees of freedom, comprises a flat board and a conductive and flexible unit disposed on the flat board. The conductive and flexible unit comprises: an inner support plate, an outer support plate, and at least one flexible connector; a hollow portion is provided on the outer support plate; the inner support plate and the flexible connector are disposed in the hollow portion; the inner and the outer support plates are connected by the flexible connector; the flexible connector comprises an outer connecting portion, an inner connecting portion corresponding to the outer connecting portion, and an extension located between the outer connecting portion and the inner connecting portion. The circuit board has a simple and compact structure; the production efficiency is high; costs are low; a multi-axis flexible anti-shaking effect can be achieved without folding a flexible structure; the resilience performance is good.

Abstract: A spring system, comprising at least three springs. The centerlines of the at least three springs are not in the same plane, and the centerlines of the springs all pass through the same rotation center. A lens anti-shaking device using the spring system, comprising: a fixing assembly comprising a housing, a positioning base, and a magnet group, the positioning base being disposed on the housing, and the magnet group being disposed on the positioning base; and a movable assembly comprising a coil group, a lens, a lens carrier, an image sensor, and a circuit board, the lens carrier being mounted on the positioning base by means of the spring system, the lens being mounted on the lens carrier, the circuit board being mounted on the positioning base, and the image sensor being disposed on the circuit board.

Abstract: The present invention provides a magnetic interference-resistant optical image stabilization voice coil motor and a method of manufacturing same. The motor includes a housing, multiple pairs of magnets, a lens carrier, a conductive spring plate and multiple coils. The magnet is fixed on an inner wall of the housing, the coil is mounted on an outer wall of the lens carrier, and the coil is disposed opposite to the magnet. The conductive spring plate is mechanically fixedly connected to the bottom of the lens carrier and the housing, the conductive spring plate is provided with at least three conductive paths, each of the conductive paths corresponds to one coil and has an input end and a common end adjacent to and separated from each other, a first wire end and a second wire end of each of the coils are respectively connected to the corresponding input end and common end.

Abstract: A magnetic interference-resistant translation-type optical image stabilization voice coil motor includes a base, a spring plate, a lens carrier, at least three groups of magnets, and a housing. The base, the housing, and the groups of magnets are connected together to form a fixed structure. The groups of magnets are disposed inside the housing. Each group of magnets includes a first magnet and a second magnet stacked on the first magnet. The first magnet and the second magnet have opposite magnetic field directions. The lens carrier includes a body and coils disposed on the body. The number of the coils is the same as the number of the groups of magnets. Each of the coils is disposed opposite to one of the groups of magnets. The spring plate is connected to the lens carrier and one of the first magnet and the second magnet.

Abstract: The present invention provides a magnetic interference-resistant optical image stabilization voice coil motor and a method of manufacturing same. The motor includes a housing, multiple pairs of magnets, a lens carrier, a conductive spring plate and multiple coils. The magnet is fixed on an inner wall of the housing, the coil is mounted on an outer wall of the lens carrier, and the coil is disposed opposite to the magnet. The conductive spring plate is mechanically fixedly connected to the bottom of the lens carrier and the housing, the conductive spring plate is provided with at least three conductive paths, each of the conductive paths corresponds to one coil and has an input end and a common end adjacent to and separated from each other, a first wire end and a second wire end of each of the coils are respectively connected to the corresponding input end and common end.

Abstract: Disclosed is a device for rapidly and comprehensively inspecting a lens actuator, the device comprising a bracket (4) for fixing the lens actuator, a cone-shaped body (2) and a camera (1), wherein the outer surface of the cone-shaped body (2) is a mirror surface, the cone-shaped body (2) is mounted on the top of the bracket (4), and the camera (1) is hung above the cone-shaped body (2). Further disclosed is a system employing the above-mentioned device for rapidly and comprehensively inspecting a lens actuator, and a method for inspecting a lens actuator by using the above-mentioned device. A rapid inspection can be realized so as to facilitate quality inspection and control in mass production, and a comprehensive inspection also can be realized, the inspection items including lens stroke, magnitude of inclination and the similar items under different control conditions.

Abstract: An automatic tuning method for an OIS camera module, comprising the steps of: S0, providing an automatic tuning platform (1), and enabling an OIS camera module (2) to directly face an objective plane (103); S1, a control module (101) indicating to an OIS motor controller (201) to control an OIS motor (203), thereby changing the stroke of a lens; S2, changing control parameters of each driver or each pair of drivers in sequence, and recording the control parameters, compensation angles and a relative angle each time the control parameters of one or one pair of drivers are changed; S3, according to the control parameters, the compensation angles and the relative angle, the control module (101) calculating an OIS gain in each stroke; and S4, transmitting the OIS gain in each stroke to the OIS motor controller (201).

Abstract: An automatic tuning method for an OIS camera module, comprising the steps of: S0, providing an automatic tuning platform (1), and enabling an OIS camera module (2) to directly face an objective plane (103); S1, a control module (101) indicating to an OIS motor controller (201) to control an OIS motor (203), thereby changing the stroke of a lens; S2, changing control parameters of each driver or each pair of drivers in sequence, and recording the control parameters, compensation angles and a relative angle each time the control parameters of one or one pair of drivers are changed; S3, according to the control parameters, the compensation angles and the relative angle, the control module (101) calculating an OIS gain in each stroke; and S4, transmitting the OIS gain in each stroke to the OIS motor controller (201).

Abstract: Disclosed is a device for rapidly and comprehensively inspecting a lens actuator, the device comprising a bracket (4) for fixing the lens actuator, a cone-shaped body (2) and a camera (1), wherein the outer surface of the cone-shaped body (2) is a mirror surface, the cone-shaped body (2) is mounted on the top of the bracket (4), and the camera (1) is hung above the cone-shaped body (2). Further disclosed is a system employing the above-mentioned device for rapidly and comprehensively inspecting a lens actuator, and a method for inspecting a lens actuator by using the above-mentioned device. A rapid inspection can be realized so as to facilitate quality inspection and control in mass production, and a comprehensive inspection also can be realized, the inspection items including lens stroke, magnitude of inclination and the similar items under different control conditions.