Optical adjustment structure protection method, camera device, anti-shake module and mobile terminal

Abstract

The invention relates to an optical adjustment structure protection method, a camera device, an anti-shake module and a mobile terminal. The optical adjustment structure protection method comprises the following steps: S10, monitoring the magnitude and direction of an acceleration value of the camera module; and S20, when the acceleration value is in a first acceleration range containing the gravitational acceleration, the position of the movable part is locked in the 1 / 3 area of the upstream in the acceleration direction in the movement range of the movable part. And S30, when the acceleration value is in a second acceleration range larger than the first acceleration range, the position of the movable part is locked in a middle 1 / 3 area or an upstream 1 / 3 area in the movement range of the movable part in the acceleration direction. And S40, after the acceleration value is reduced to be lower than the first acceleration range or lower than the second acceleration range, position locking of the movable part is relieved. The movable part is provided with the buffer space, so that the movable part does not directly collide with the positioning part, and the risk of failure of functions such as automatic focusing or shake prevention of the camera module is reduced.

Description

Technical Field

[0001] The present application relates to the technical field of photographic devices, and in particular to an optical adjustment structure protection method, a camera device, an anti-shake module and a mobile terminal. Background Art

[0002] Some mobile terminals are equipped with an optical adjustment structure that can achieve autofocus or anti-shake to improve the photography function. When autofocus is required, the optical adjustment structure includes movable parts such as a lens assembly and a coil, and also includes positioning parts such as a permanent magnet and an image sensor. After the permanent magnet and the image sensor are respectively positioned and connected to the support structure, the lens assembly is movably arranged relative to the image sensor along the optical axis. The elastic member causes the lens assembly to shift to the reset position. After the coil is energized, a magnetic force is formed between the coil and the permanent magnet, and the coil drives the lens assembly to leave the reset position. And under the action of the magnetic force of the coil and the elastic force of the elastic member, the lens assembly can move relative to the image sensor within a certain range of movement. Since the lens assembly has a focusing effect on light, when the lens assembly is adjusted to a suitable position relative to the image sensor, the external light can be accurately focused on the image sensor.

[0003] As the requirements for mobile terminal imaging functions increase, the area of ​​image sensors continues to increase, and the volume and weight of moving parts are also gradually increasing. When the optical adjustment structure is subjected to a large acceleration, a violent collision may occur between the moving parts and the positioning parts, resulting in the risk of failure of functions such as autofocus or anti-shake. Summary of the invention

[0004] Based on this, the present invention provides an optical adjustment structure protection method, a camera device, an anti-shake module and a mobile terminal that can solve or at least alleviate the above-mentioned technical problems.

[0005] The present invention provides an optical adjustment structure protection method, comprising the following steps:

[0006] Monitor the magnitude and direction of the acceleration value of the camera module;

[0007] When the acceleration value is in a first acceleration range including gravity acceleration, locking the position of the movable component in a region of 1 / 3 upstream in the acceleration direction in its movable range;

[0008] When the acceleration value is in a second acceleration range greater than the first acceleration range, locking the position of the movable component in a region in the middle 1 / 3 of its movable range along the acceleration direction, or in a region in the upstream 1 / 3 of its movable range along the acceleration direction; and

[0009] After the acceleration value drops below the first acceleration range or below the second acceleration range, the position lock of the movable component is released.

[0010] In the above optical adjustment structure protection method, since the gravity acceleration is within the first acceleration range, when the acceleration value is within the first acceleration range, the magnitude of the acceleration value is close to the gravity acceleration, and the camera module can be determined to be in a free fall state. According to the acceleration direction, the relative height relationship between the first boundary and the second boundary can be determined, and the side of the camera module that may collide with the ground can be determined. By locking the position of the movable component in the 1 / 3 area upstream of the acceleration direction, when the camera module collides with the ground, although the movable component may have a large relative speed relative to the boundary position of the activity range, the movable component has a large buffer space, so that the movable component does not collide directly with the positioning component, or the movable component collides with the positioning component at a lower relative speed after deceleration, thereby reducing the risk of failure of the camera module's autofocus or anti-shake functions. In addition, when the camera module is shaken, for example, when the user is moving, the acceleration is large, but the time for the camera module to accelerate in one direction is short, so before the acceleration of the camera module changes, the speed of the movable component is relatively small. When the acceleration value of the camera module is in the second acceleration range, by locking the position of the movable component in the 1 / 3 area upstream along the acceleration direction in its range of motion, sufficient buffer space can be provided for the movable component in unidirectional shaking. In addition, by locking the position of the movable component in any position in the middle 1 / 3 area of ​​its range of motion, the movable component can be prevented from repeatedly colliding with the positioning components on both sides in reciprocating shaking, thereby reducing the risk of failure of the camera module's autofocus or anti-shake functions.

[0011] In one of the embodiments, when the acceleration value is within the first acceleration range, the movable component is locked at a position at a boundary of the movable range upstream along the acceleration direction.

[0012] In one of the embodiments, a corresponding current is applied to the electromagnetic driving member in the movable component, so that the movable component is pressed against a boundary surface of the movable range upstream along the acceleration direction under the action of magnetic force.

[0013] In one of the embodiments, the method further includes the step of gradually resetting the movable component to the upstream 1 / 3 region after the movable component leaves the upstream 1 / 3 region due to inertia.

[0014] In one embodiment, when the movable part reaches a maximum stroke relative to the upstream 1 / 3 region under the action of inertia, the gradual resetting of the movable part begins; and / or the step size of the resetting movement that occurs earlier is larger than the step size of the resetting movement that occurs later.

[0015] In one of the embodiments, when the acceleration value is within the second acceleration range, the position of the movable component is locked at the midpoint of its movable range.

[0016] In one embodiment, when the acceleration value is in the second acceleration range, the position of the movable component is first locked in the upstream 1 / 3 area in the acceleration direction in its movable range, and then, if the acceleration direction changes within a predetermined period of time, the position of the movable component is locked in the middle 1 / 3 area in the acceleration direction in its movable range.

[0017] In one of the embodiments, when the acceleration value drops below the second acceleration range, the position of the movable component is locked in the middle 1 / 3 area or in the upstream 1 / 3 area within a set period of time, and the position lock of the movable component is released after the set period of time ends.

[0018] In one of the embodiments, the acceleration value of the camera module is monitored by an acceleration sensor.

[0019] In one of the embodiments, when releasing the position lock of the movable part, the movable part is gradually moved to the unlocked position.

[0020] The present invention provides a camera device for implementing the optical adjustment structure protection method of any one of the above embodiments.

[0021] The present invention provides an anti-shake module for implementing the optical adjustment structure protection method of any one of the above embodiments.

[0022] The present invention provides a mobile terminal for implementing the optical adjustment structure protection method of any one of the above embodiments. BRIEF DESCRIPTION OF THE DRAWINGS

[0023] Figure 1 This is a schematic structural diagram of a camera module in a camera device according to an embodiment of the present application, wherein the movable component is located in the second 1 / 3 area within the movable range.

[0024] Figure 2 for Figure 1 The structural schematic diagram of the camera module in another state is shown, the camera module is in the first falling condition, and the movable component is in the third 1 / 3 area within the movable range.

[0025] Figure 3 for Figure 1 The structural schematic diagram of the camera module in another state is shown, the camera module is in the second falling situation, and the movable component is in the first 1 / 3 area within the movable range.

[0026] Figure 4 A schematic diagram of the structure of a mobile terminal according to an embodiment of the present application.

[0027] Figure 5 This is a schematic diagram of the structure of an anti-shake module according to an embodiment of the present application, wherein the movable component is located in the third 1 / 3 area within the movable range.

[0028] Figure 6 This is a schematic diagram of the structure of an anti-shake module according to an embodiment of the present application, wherein the movable component is located in the third 1 / 3 area within the movable range.

[0029] Figure 7 The figure is a flowchart of a camera module protection method according to an embodiment of the present application.

[0030] Figure 8 FIG. 4 is a flow chart of a camera module protection method according to another embodiment of the present application.

[0031] Figure numerals: 100, mobile terminal; 101, front camera; 102, ultra-wide-angle camera; 103, main camera; 104, telephoto camera; 20, camera module; 201, first side; 202, second side; 21, magnet; 22, elastic member; 232, lens assembly; 233, base; 24, image sensor; 25, supporting structure; 26, protective cover; 30, anti-shake module; 31, frame; 32, carrier; F1, acceleration direction. DETAILED DESCRIPTION

[0032] The technical solution of the present application will be described clearly and completely below in conjunction with the accompanying drawings. Obviously, the described embodiments are part of the embodiments of the present application, rather than all of the embodiments. Based on the embodiments in the present application, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present application.

[0033] In the description of the present application, it should be noted that the terms "center", "upper", "lower", "left", "right", "vertical", "horizontal", "inner", "outer", etc., indicating the orientation or positional relationship, are based on the orientation or positional relationship shown in the drawings, and are only for the convenience of describing the present application and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore cannot be understood as limiting the present application. In addition, the terms "first", "second", and "third" are used for descriptive purposes only, and cannot be understood as indicating or implying relative importance.

[0034] In the description of this application, it should be noted that, unless otherwise clearly specified and limited, the terms "installed", "connected", and "connected" should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, an integral connection, a mechanical connection, an electrical connection, a direct connection, an indirect connection through an intermediate medium, or the internal connection of two components. For ordinary technicians in this field, the specific meanings of the above terms in this application can be understood according to specific circumstances.

[0035] The technical solution provided by the embodiments of the present application is described below in conjunction with the accompanying drawings.

[0036] The present application provides a camera device, which is used to convert an optical signal into an electrical signal to achieve image capture. The camera device can also achieve automatic focus or optical image stabilization.

[0037] Specifically, combined Figure 1 As shown, the camera device includes a camera module 20 and a control unit electrically connected to the camera module 20. The control unit and the camera module 20 cooperate through control to achieve automatic focus or optical image stabilization.

[0038] Specifically, combined Figure 1 As shown, the camera module 20 includes a movable part and a positioning part. The positioning part is supported, and the movable part is movably arranged relative to the positioning part. Specifically, the movable part includes a lens assembly 232 and an electromagnetic driving member connected to the lens assembly 232. The positioning part includes a magnet 21 and an image sensor 24. The magnet 21 and the image sensor 24 are supported respectively, and there is a stable or approximately stable relative position between the magnet 21 and the image sensor 24. The movable part can move relative to the image sensor 24 within a range of motion parallel to the optical axis. Specifically, the camera module 20 can be understood as an optical adjustment structure.

[0039] Specifically, the camera module 20 also includes an elastic member 22, which generates an elastic force on the movable part in a deformed state. When a certain current or voltage is applied to the electromagnetic driver, the electromagnetic driver and the magnet 21 generate a magnetic force. When the magnetic force exerted on the electromagnetic driver just offsets the elastic force of the elastic member 22, the movable part can be in a stable position within the range of motion. In addition, by adjusting the current or voltage applied to the electromagnetic driver and changing the magnitude of the magnetic force exerted on the electromagnetic driver, the deformation amplitude of the elastic member 22 can be changed, thereby moving the movable part to other positions within the range of motion. By adjusting the position of the lens assembly 232 relative to the image sensor 24, the function of autofocus can be achieved.

[0040] Optionally, combined Figure 1 As shown, the magnet 21 and the image sensor 24 are connected to the same support structure 25. Optionally, the magnet 21 and the image sensor 24 are connected to different support structures 25. Optionally, the support structure 25 is a packaging shell or other packaging structure of the camera module 20. Optionally, the support structure 25 is a structure outside the camera module 20. Optionally, the magnet 21 is made of a permanent magnetic material, or an electromagnet structure.

[0041] Optionally, the elastic member 22 may be a single one. Further, one end of the elastic member 22 abuts against the movable component, and the other end abuts against the support structure 25. Optionally, the elastic member 22 may also be multiple. Further, the movable component may be abutted between two elastic members 22. Optionally, the elastic member 22 is a spring, a spring sheet or other elastic structure.

[0042] More specifically, combined with Figure 1 As shown, the lens assembly 232 includes one or more optical lenses. Figure 1 As shown, the camera module 20 further includes a protective cover 26 positioned and connected to the support structure 25 , and movable parts are located between the protective cover 26 and the image sensor 24 . The protective cover 26 provides protection for the lens assembly 232 .

[0043] Optionally, the electromagnetic drive member is a voice coil motor or other electromagnetic drive structure. Figure 1 As shown, the movable component also includes a base 233, and the lens assembly 232 and the electromagnetic driving component are respectively positioned and connected to the base 233.

[0044] Specifically, the control unit is used to control the position adjustment of the movable part relative to the image sensor 24. More specifically, the control unit is electrically connected to the electromagnetic driver, and the control unit applies current or voltage to the electromagnetic driver, so that the position of the movable part relative to the image sensor 24 is adjusted.

[0045] Specifically, the magnet 21, the image sensor 24, the support structure 25 or the protective cover 26 can be understood as a positioning component. When the autofocus or optical image stabilization function is implemented, the movable component moves relative to the positioning component.

[0046] Optionally, the camera device further includes an acceleration sensor electrically connected to the control unit, and the acceleration sensor can be used to detect the magnitude of the acceleration value of the camera module 20 .

[0047] Specifically, the acceleration sensor can also be used to identify the acceleration direction F1 of the camera module 20. More specifically, the control unit adjusts the position of the movable component in the movable range according to the feedback of the acceleration sensor.

[0048] Optionally, the acceleration sensor is a three-axis acceleration sensor that can identify the magnitude and direction of uniaxial acceleration on three spatial axes. By synthesizing the uniaxial acceleration on the three spatial axes, the actual magnitude and actual direction of the acceleration value of the camera module 20 can be obtained. Furthermore, when the direction of the uniaxial acceleration is the same as the direction of the arrow of the spatial axis, the uniaxial acceleration is a positive number. When the direction of the uniaxial acceleration is opposite to the direction of the arrow of the spatial axis, the uniaxial acceleration is a negative number. Furthermore, since each uniaxial acceleration can correspond to a point on the spatial axis, in the spatial coordinate system, the three uniaxial accelerations can correspond to a line segment starting from the origin of the spatial coordinate system, and the line segment can represent the actual magnitude and actual direction of the acceleration value.

[0049] Optionally, the camera device may also include three uniaxial acceleration sensors, and the measurement directions of the three uniaxial acceleration sensors are arranged perpendicular to each other.

[0050] Optionally, the camera device may also receive information about the magnitude of the acceleration value and the acceleration direction F1 of the camera module 20 from the outside, that is, the control unit may receive information about the magnitude of the acceleration value and the acceleration direction F1 of the camera module 20 from the outside.

[0051] Specifically, combined Figure 1 As shown, the camera module 20 has two opposite sides, which can be specifically understood as a first side 201 and a second side 202. The range of motion of the movable component in the camera module 20 has two opposite boundaries, which can be specifically understood as a first boundary and a second boundary. More specifically, the relative direction between the first boundary and the second boundary is roughly parallel to the relative direction between the first side 201 and the second side 202. The first boundary is closer to the first side 201 relative to the second boundary, and the second boundary is closer to the second side 202 relative to the first boundary. More specifically, the position of the protective cover 26 corresponds to the first side 201 of the camera module 20, and the position of the image sensor 24 corresponds to the second side 202 of the camera module 20.

[0052] Specifically, the two boundaries of the range of motion may be formed by hardware, for example, by forming a boundary surface through the support structure 25, and the support structure 25 limits the further movement of the active part by abutting against the active part. The two boundaries of the range of motion may be formed by software, for example, according to the position feedback of the active part, the further movement of the active part is limited when the active part reaches the boundary coordinates.

[0053] Specifically, the camera module 20 in a free-falling state includes at least two situations, in which the relative direction between the first side 201 and the second side 202 is substantially parallel to the vertical direction. Figure 2 As shown, in the first falling situation of the two situations, the first side 201 is generally facing the ground. Figure 3 As shown, in the second drop condition, the second side 202 is generally facing the ground.

[0054] Specifically, the activity range is evenly divided into three areas, and the three areas are linearly distributed in sequence along the relative direction between the first boundary and the second boundary, and each of the three areas occupies 1 / 3 of the length of the activity range. Furthermore, along the direction from the first boundary to the second boundary, the three areas are the first 1 / 3 area, the second 1 / 3 area, and the third 1 / 3 area.

[0055] Furthermore, combined with Figure 2 As shown, in the first falling condition, relative to the first 1 / 3 area and the second 1 / 3 area, the third 1 / 3 area is located upstream of the active range along the acceleration direction F1. Figure 3 As shown, in the second falling situation, relative to the second 1 / 3 area and the third 1 / 3 area, the first 1 / 3 area is located upstream of the active range along the acceleration direction F1. Optionally, when the camera module 20 needs to focus on a closer target, the lens assembly 232 is located in the first 1 / 3 area. When the camera module 20 needs to focus on a farther target, the lens assembly 232 is located in the third 1 / 3 area.

[0056] Furthermore, combined with Figure 1 As shown, the second 1 / 3 area is in the middle of the range of motion. More specifically, the midpoint of the second 1 / 3 area coincides or roughly coincides with the midpoint of the range of motion.

[0057] Optionally, the range of motion can be understood as the overall motion space of the active component. Optionally, when the length of 1 / 3 of the overall motion space of the active component is less than the length of the active component along the optical axis, the range of motion can be understood as the travel range of the midpoint of the active component.

[0058] Specifically, when not subjected to the magnetic force, the movable part is in the unlocked position in the movable range. Optionally, the unlocked position may be in one of the first 1 / 3 area, the second 1 / 3 area, or the third 1 / 3 area. Optionally, the unlocked position may be located at the midpoint of the movable range. Optionally, the unlocked position may also be located at the boundary of the movable range, in which case the movable part is disposed adjacent to the first boundary or the second boundary, or the movable part is disposed intersecting with the first boundary or the second boundary.

[0059] Specifically, when the position of the movable part changes within the movable range, the control unit can obtain the position information of the movable part within the movable range in real time. Specifically, the real-time position information of the movable part can be obtained through the current change of the electromagnetic drive or other sensing methods.

[0060] In some embodiments, the camera device further includes an anti-shake module 30. The anti-shake module 30 can control the movement of the lens assembly 232 within a plane range to achieve optical anti-shake. The anti-shake module 30 can be understood as an optical adjustment structure.

[0061] Combination Figure 5 and Figure 6 As shown, the present application also provides an anti-shake module 30. The anti-shake module 30 includes a movable component and a positioning component. The positioning component is supported, and the movable component is movably arranged relative to the positioning component. The movable direction of the movable component relative to the positioning component is a direction parallel to a predetermined plane. Specifically, the positioning component includes at least a frame 31. The movable component includes at least a carrier 32. The carrier 32 is movably accommodated in the frame 31. Furthermore, the shape of the movable range of the carrier 32 relative to the frame 31 is rectangular, circular or other plane figures. When the center of the carrier 32 coincides with the center of the movable range, the carrier 32 can move relative to the positioning component in any direction parallel to the predetermined plane. It can be understood that the movable range of the carrier 32 relative to the frame 31 can be understood as the travel range of the center of the carrier 32 relative to the reference point. Optionally, the reference point can be the midpoint of the frame 31.

[0062] Specifically, the anti-shake module 30 also includes a driving component. The driving component is arranged between the carrier 32 and the frame 31, and is used to drive the carrier 32 to translate relative to the frame 31 within the range of motion. Optionally, the driving component includes a suspension wire. Optionally, the driving component includes a motor with a ball. Specifically, the anti-shake module 30 also includes an acceleration sensor and a control unit. The control unit detects the magnitude and direction of the acceleration of the frame 31 through the acceleration sensor. The control unit sends a control signal to the driving component to adjust the position of the carrier 32 relative to the frame 31.

[0063] Optionally, the stage 32 is used to install the lens assembly 232. Optionally, the anti-shake module 30 can also be used to install the camera module 20. More specifically, the stage 32 serves as a supporting structure to provide support for the magnet 21 or the image sensor 24. It can be understood that the predetermined plane is substantially perpendicular to the optical axis of the lens assembly 232. It can be understood that after the camera module 20 is combined with the anti-shake module 30, it can also be understood as an optical adjustment structure capable of realizing autofocus and optical image stabilization.

[0064] Specifically, the free-falling state of the anti-shake module 30 includes at least one situation, which is briefly described as the third falling situation below. In the third falling situation, a portion of the outer periphery of the frame 31 is generally facing the ground, and another portion of the outer periphery of the frame 31 is generally facing away from the ground. Specifically, the outer periphery of the frame 31 is generally corresponding to the outer edge of the range of motion. It can be understood that in the third falling situation, the acceleration direction F1 is generally perpendicular to the optical axis.

[0065] Specifically, combined Figure 5 and Figure 6 As shown, the movable range of the platform 32 relative to the frame 31 can be divided into three adjacent areas. More specifically, a vertical line segment passing through the center of the movable range is set. In the third falling situation, the vertical line segment is parallel to the acceleration direction F1. In addition, two nodes are set to divide the vertical line segment into three equal segments. In a plane parallel to the movable range, dividing lines passing through the nodes are respectively made. The dividing lines are perpendicular to the vertical line segment, and the dividing lines are the boundaries between adjacent areas. Specifically, the three areas each occupy 1 / 3 of the length of the vertical line segment. More specifically, along the direction from the lower end to the upper end of the vertical line segment, the three areas are the first 1 / 3 area, the second 1 / 3 area and the third 1 / 3 area, respectively.

[0066] Furthermore, in the third falling condition, relative to the first 1 / 3 area and the second 1 / 3 area, the third 1 / 3 area is located upstream of the active range along the acceleration direction F1.

[0067] Combination Figure 4 As shown, the present application also provides a mobile terminal 100. Specifically, the mobile terminal 100 can at least be a mobile phone, a tablet computer, a digital camera or a laptop computer.

[0068] Specifically, the mobile terminal 100 includes a camera module 20 and a control unit electrically connected to the camera module 20. The control unit cooperates with the camera module 20 to achieve auto focus or optical image stabilization. More specifically, the control unit is a central processing unit. Further, the mobile terminal 100 includes

[0069] Furthermore, the mobile terminal 100 further includes a power module, which is used to supply power to the control unit. More specifically, the power module includes an energy storage component. Optionally, the energy storage component is a lithium battery or other components capable of outputting electrical energy.

[0070] Optionally, the mobile terminal 100 further includes an acceleration sensor electrically connected to the control unit, and the acceleration sensor can be used to detect the magnitude of the acceleration value of the mobile terminal 100 as a whole. The acceleration sensor can also be used to identify the acceleration direction F1 of the mobile terminal 100 as a whole. Optionally, the control unit can also be integrated with the acceleration value magnitude and acceleration direction F1 detection function. It can be understood that the magnitude of the acceleration value and the acceleration direction F1 of the camera module 20 are equivalent to the magnitude of the acceleration value and the acceleration direction F1 of the mobile terminal 100 as a whole.

[0071] Optionally, the metal middle frame or the main circuit board of the mobile terminal 100 can serve as the support structure 25 to provide support for the magnet 21 or the image sensor 24 .

[0072] Combination Figure 7 As shown, the present application also provides an optical adjustment structure protection method, which can be applied to at least a camera device or a mobile terminal 100. Specifically, the optical adjustment structure protection method includes the following steps:

[0073] S10: monitoring the magnitude and direction of the acceleration value of the camera module 20 .

[0074] S20: When the acceleration value is in the first acceleration range including the gravitational acceleration, the position of the movable component is locked in a region of 1 / 3 of the movable range that is upstream along the acceleration direction F1.

[0075] S30: When the acceleration value is in a second acceleration range greater than the first acceleration range, the position of the movable component is locked in an area in the middle 1 / 3 of its movable range along the acceleration direction F1, or is locked in an area in the upstream 1 / 3 of its movable range along the acceleration direction F1.

[0076] S40: After the acceleration value drops below the first acceleration range or the second acceleration range, releasing the position lock of the movable component.

[0077] The optical adjustment structure protection method of the present application, since the gravity acceleration is within the first acceleration range, when the acceleration value is within the first acceleration range, the magnitude of the acceleration value is close to the gravity acceleration, and the camera module 20 can be determined to be in a free fall state. According to the acceleration direction F1, the relative height relationship between the first boundary and the second boundary can be determined, and the side of the camera module 20 that may collide with the ground can be determined. By locking the position of the movable component in the 1 / 3 area upstream of the acceleration direction F1, when the camera module 20 collides with the ground, although the movable component may have a large relative speed relative to the boundary position of the movable range, the movable component has a large buffer space, so that the movable component does not collide directly with the positioning component, or the movable component collides with the positioning component at a lower relative speed after deceleration, thereby reducing the risk of failure of the automatic focus function of the camera module 20. In addition, when the camera module 20 is shaken, for example, when the user moves, the acceleration is large, but the time for the camera module 20 to accelerate in one direction is short, so before the acceleration of the camera module 20 changes, the speed of the movable component is relatively small. When the acceleration value of the camera module 20 is in the second acceleration range, by locking the position of the movable component in the upstream 1 / 3 region in the acceleration direction in its range of motion, sufficient buffer space can be provided for the movable component in unidirectional shaking. In addition, by locking the position of the movable component in any position in the middle 1 / 3 region of its range of motion, the movable component can be prevented from repeatedly colliding with the positioning components on both sides in reciprocating shaking, thereby reducing the risk of failure of functions such as autofocus or anti-shake of the camera module 20.

[0078] Specifically, since the internal structure of the mobile terminal 100 may be complex and include multiple components, some consumers may judge the workmanship quality of the mobile terminal 100 or the abnormality inside the mobile terminal 100 based on whether there is an abnormal sound inside the mobile terminal 100 during unidirectional shaking or reciprocating shaking. If the optical adjustment structure in the mobile terminal 100 makes a sound due to the collision between the moving parts and the positioning parts during shaking, it is easy for consumers to think that the workmanship quality of the mobile terminal 100 is poor, or that there is an abnormality inside the mobile terminal 100. The optical adjustment structure protection method of the present application can effectively avoid the noise generated by the collision between the movable part and the positioning part by locking the position of the movable part in the middle 1 / 3 area along the acceleration direction F1 in its movable range, or locking it in the upstream 1 / 3 area in its movable range along the acceleration direction F1 when the acceleration value is in the second acceleration range, thereby preventing the noise generated by the optical adjustment structure from causing consumers to believe that the workmanship quality of the mobile terminal 100 is poor, or causing users to believe that there is an abnormal condition inside the mobile terminal 100.

[0079] Specifically, combined Figure 2 As shown, when the magnitude of the acceleration value is within the first acceleration range and in the first falling situation, the control unit applies a corresponding current to the electromagnetic drive member so that the position of the movable component is stably maintained in the third 1 / 3 area. At this time, the distance between the movable component and the first boundary is not less than the sum of the lengths between the first 1 / 3 area and the second 1 / 3 area. Therefore, after the first side 201 of the camera module 20 collides with the ground, even if the movable component moves downward relative to the positioning component under inertia, due to the sufficient buffer distance between the movable component and the first boundary, the movable component can be limited from moving downward relative to the positioning component to the first boundary, effectively preventing the movable component from colliding with the positioning component when reaching or exceeding the first boundary.

[0080] Optionally, the control unit applies a constant current to the electromagnetic drive member so that the movable part is locked in one of the positions within the third 1 / 3 area due to the magnetic force.

[0081] Specifically, combined Figure 3 As shown, when the magnitude of the acceleration value is within the first acceleration range, and in the second falling situation, the control unit applies a corresponding current to the electromagnetic drive member so that the position of the movable component is stably maintained in the first 1 / 3 area. At this time, the distance between the movable component and the second boundary is not less than the sum of the lengths between the second 1 / 3 area and the third 1 / 3 area. Therefore, after the second side 202 of the camera module 20 collides with the ground, even if the movable component moves downward relative to the positioning component under inertia, due to the sufficient buffer distance between the movable component and the second boundary, the movable component can be limited from moving downward relative to the positioning component to the second boundary, effectively preventing the movable component from colliding with the positioning component when reaching or exceeding the second boundary.

[0082] Understandably, for the anti-shake module 30, when the optical adjustment structure protection method of the present application is adopted, when the acceleration value is in the first acceleration range, it can be determined that the anti-shake module 30 is in a free fall state. According to the acceleration direction F1, the vertical line segment in the activity range and the third 1 / 3 area upstream along the acceleration direction F1 can be determined. By locking the position of the movable component in the 1 / 3 area upstream of the acceleration direction F1, when a part of the periphery of the frame 31 collides with the ground, although the movable components such as the platform 32 may have a large relative speed relative to the boundary position of the activity range, the movable components have a large buffer space, so that the movable components do not collide directly with the positioning components, or the movable components collide with the positioning components at a lower relative speed after deceleration, thereby reducing the risk of failure of the anti-shake function of the anti-shake module 30. In addition, when the anti-shake module 30 is subjected to reciprocating shaking, for example, when the user is moving, the acceleration is large, but the time for the anti-shake module 30 to accelerate in one direction is short, so when the acceleration of the anti-shake module 30 changes to the front, the speed of the moving part is relatively small. When the acceleration value of the anti-shake module 30 is in the second acceleration range, by locking the position of the moving part in the middle 1 / 3 area of ​​its active range, that is, any position in the second 1 / 3 area, it can prevent the moving part from repeatedly colliding with the inner periphery of the positioning part, reduce the risk of failure of the anti-shake function of the anti-shake module 30, and prevent the sound generated by the collision between the platform 32 and the frame 31, which causes consumers to think that the workmanship quality of the mobile terminal 100 is poor, or causes users to think that there is an abnormal condition inside the mobile terminal 100. In step S10, specifically, for the mobile terminal 100, optionally, the control unit monitors the magnitude and direction of the acceleration value of the camera module 20 through feedback from the acceleration sensor. Optionally, the control unit monitors the magnitude of the acceleration value through an internally integrated acceleration detection function.

[0083] Specifically, for the camera device, optionally, the control unit monitors the magnitude and direction of the acceleration value through feedback from an internal acceleration sensor. Optionally, the control unit monitors the magnitude and direction of the acceleration value through feedback from an external acceleration sensor.

[0084] Optionally, the acceleration value of the camera module 20 may be monitored at intervals. For example, the acceleration sensor samples the acceleration value at intervals. Optionally, the acceleration sensor transmits relevant data of the acceleration value to the control unit at intervals.

[0085] For step S20, in some embodiments, the first acceleration range is 9 m / s 2 ~11m / s 2 , so that the gravitational acceleration is included in the first acceleration range, and in the presence of measurement deviations, the control of the moving parts can be guaranteed.

[0086] In some embodiments, when the acceleration value is in the first acceleration range, the movable component is locked at a position at the upstream activity range boundary along the acceleration direction F1. Specifically, for simplicity of description and ease of understanding, the upstream activity range boundary along the acceleration direction F1 is referred to as the upper boundary.

[0087] More specifically, in the first falling situation, the upper boundary can be understood as the second boundary of the movable range, and the first boundary is located at the lower side relative to the second boundary. When the movable component is locked at the second boundary, the distance between the movable component and the first boundary is roughly equal to the length of the movable range, so that there is a more sufficient buffer distance between the movable component and the first boundary, and it is more effective to prevent the collision between the movable component and the positioning component when reaching or exceeding the first boundary.

[0088] More specifically, in the second falling situation, the upper boundary can be understood as the first boundary of the movable range, and the second boundary is located at the lower side relative to the first boundary. When the movable component is locked at the first boundary, the distance between the movable component and the second boundary is roughly equal to the length of the movable range, so that there is a more sufficient buffer distance between the movable component and the second boundary, and it is more effective to prevent the collision between the movable component and the positioning component when reaching or exceeding the second boundary.

[0089] More specifically, when the movable component is locked at the upper boundary, the magnetic force applied to the movable component may be arranged in the same direction as the elastic force applied by the elastic member 22 , or may be arranged in the opposite direction.

[0090] In some embodiments, a corresponding current is applied to the electromagnetic driving member in the movable component, so that the movable component is abutted against the boundary surface of the movable range located upstream along the acceleration direction F1 under the action of magnetic force. Specifically, the boundary surface of the movable range can be formed by the support structure 25, or by other positioning components without causing damage.

[0091] More specifically, when the movable part is locked at the second boundary, the movable part can be in abutment with the support structure 25 near the second boundary, so that the electromagnetic drive member applies a greater magnetic force to the movable part, thereby more effectively preventing the movable part from leaving the second boundary under inertia. Further, the magnitude of the current applied to the electromagnetic drive member can be greater than the current required to move the movable part to the second boundary. Since the electromagnetic force is greater than the elastic force of the elastic member 22, the movable part can be in abutment with the support structure 25 near the second boundary.

[0092] More specifically, when the movable part is locked at the first boundary, the movable part can be in abutment with the support structure 25 near the first boundary, so that the electromagnetic drive member applies a greater magnetic force to the movable part, thereby more effectively preventing the movable part from leaving the first boundary under inertia. Furthermore, the magnitude of the current applied to the electromagnetic drive member can be greater than the current required to move the movable part to the first boundary, so that the movable part can be in abutment with the support structure 25 near the first boundary.

[0093] More specifically, for the mobile terminal 100, the power module may apply current to the electromagnetic driver under the control of the control unit. For the camera device, the control unit may control the on / off of the electrical circuit between the external power supply and the electromagnetic driver, and may adjust the input current of the electromagnetic driver.

[0094] More specifically, in the third falling situation, when the position of the movable part is locked at the upper boundary, optionally, the edge of the platform 32 coincides with the upper end of the vertical line segment. Optionally, the midpoint of the platform 32 coincides with the upper end of the vertical line segment at this time.

[0095] In some embodiments, when the mobile terminal 100 includes a camera module 20 and an anti-shake module 30. It is understandable that when the acceleration value is in the first acceleration range, according to the monitored acceleration direction F1, one of the camera module 20 and the anti-shake module 30 performs a position locking operation of the movable component. For example, when the acceleration direction F1 is approximately parallel to the optical axis, that is, in the first drop situation or the second drop situation, a position locking operation is performed on the movable component in the camera module 20. It is understandable that when the acceleration direction F1 is approximately parallel to the optical axis, the front or back of the mobile terminal 100 is facing the ground and will collide with the ground. For example, when the acceleration direction F1 is approximately perpendicular to the optical axis, that is, in the third drop situation, a position locking operation is performed on the movable component in the anti-shake module 30. It is understandable that when the acceleration direction F1 is approximately perpendicular to the optical axis, a part of the side frame of the mobile terminal 100 is facing the ground and will collide with the ground.

[0096] It is understandable that when the acceleration value is within the first acceleration range, the camera module 20 and the anti-shake module 30 also simultaneously perform the position locking operation of the movable components. For example, when the acceleration direction is tilted relative to each spatial axis, the position locking operation is performed on the movable components in the camera module 20 and the movable components in the anti-shake module 30.

[0097] Optionally, combined Figure 8As shown, the optical adjustment structure protection method also includes step S21: after the movable component leaves the upstream 1 / 3 area due to inertia, gradually resetting the movable component to the upstream 1 / 3 area. Specifically, by moving the movable component to the upstream 1 / 3 area step by step, it can be avoided that the movable component moves significantly and reaches the upstream 1 / 3 area, causing inertial impact due to excessive speed. Due to the slow reset, when reaching the original locked position, the speed of the movable component is a safe speed, thereby preventing the movable component from hitting the positioning component due to inertia.

[0098] Specifically, after the movable part leaves the upstream 1 / 3 region, it returns to its original position in the upstream 1 / 3 region through multiple reset movements. Furthermore, the stride of the reset movement that occurs earlier is greater than the stride of the reset movement that occurs later, and by gradually reducing the stride of the reset movement, the inertial impact of the movable part when it returns to the original locking position is minimized.

[0099] Specifically, when the movable part reaches the maximum stroke in the 1 / 3 area relative to the upstream under the action of inertia, the gradual resetting of the movable part begins. More specifically, since the control unit can obtain the real-time position of the movable part through the electromagnetic drive or other sensing structure, the control unit can start controlling the gradual resetting of the movable part after the movable part leaves the locking position due to inertia and reaches the maximum stroke.

[0100] More specifically, in the case of using coordinates to mark different positions of the movable component within the movable range, when the coordinates of the movable component are in the range of 0 to 300, the movable component is within the first 1 / 3 area. When the coordinates of the movable component are in the range of 300 to 600, the movable component is within the second 1 / 3 area. When the coordinates of the movable component are in the range of 600 to 900, the movable component is within the third 1 / 3 area. Further, in the second falling situation, the first 1 / 3 area is the upstream 1 / 3 area. When the acceleration value is in the first acceleration range, after the movable component is locked at the position with coordinates of 50, when the second side 202 of the camera module 20 collides with the bottom surface, the movable component leaves the locked position due to inertia. When the movable component reaches the position with coordinates of 500, the movable component stops further movement relative to the positioning component. Thereafter, in the process of multiple reset movements, the first reset movement is to move the movable part from the position of coordinate 500 to the position of coordinate 350, the second reset movement is to move the movable part from the position of coordinate 350 to the position of coordinate 150, and the third reset movement is to move the movable part from the position of coordinate 150 to the position of coordinate 50, thereby gradually reducing the step of the reset movement. More specifically, the step of the reset movement can be adjusted according to the actual number of reset movements.

[0101] In some embodiments, after the movable component leaves the upper boundary of the movable range due to inertia, the movable component is gradually restored to the upper boundary of the movable range.

[0102] It is understandable that before a reset movement begins, the movable part is roughly stationary at a position within the range of motion, and after a reset movement ends, the movable part is roughly stationary at another position. Specifically, the other position can be understood as the target position. Specifically, the time of each reset movement is the sum of the time required for position movement and the time required for smooth transition. The time required for position movement is briefly described as the movement time, and the time required for smooth transition is briefly described as the transition time. After a reset movement, after the movement time, the movable part passes the target position for the first time. Then, after the transition time, the movable part is roughly stationary at the target position. It is understandable that the size of the movement time is respectively related to the structural form of the optical adjustment structure and the size of the driving current. The size of the transition time is respectively related to factors such as the mass of the movable part, the distance of the position movement and the driving voltage. Optionally, the movement time is 10ms to 15ms. Optionally, the transition time is 10ms to 60ms. It is understandable that the time used for the process of resetting the movable part to the original locked position after multiple reset movements is 100ms to 200ms.

[0103] For step S30, optionally, the second acceleration range is 18 m / s 2 ~44m / s 2 .

[0104] In some embodiments, when the acceleration value is in the second acceleration range, the position of the movable component is locked in the middle 1 / 3 area along the acceleration direction F1 in its movable range. Since the camera module 20 is subjected to reciprocating shaking, but the time for the camera module 20 to accelerate in a single direction is short, when the acceleration direction F1 of the camera module 20 changes, the speed of the movable component may still be relatively small. Therefore, a gap can be formed between the second acceleration range and the first acceleration range, and only when the acceleration value is large, it is determined that the reciprocating shaking situation may cause a collision, thereby reducing the adjustment frequency of the movable component and reducing the power consumption of the camera device or the mobile terminal 100.

[0105] Furthermore, since the position of the movable component is locked in the middle 1 / 3 of its movable range when the acceleration value is in the second acceleration range, the camera module 20 is prevented from repeatedly colliding with the positioning components on both sides when it is subjected to reciprocating shaking, thereby preventing the camera module 20 from making abnormal noises due to repeated slight collisions.

[0106] In some embodiments, when the acceleration value is in the second acceleration range, the position of the movable component is locked at the midpoint of its movable range, so that the distance between the movable component and the first boundary is roughly equal to the distance between the movable component and the second boundary, which can more effectively prevent the movable component from repeatedly colliding with the positioning components on both sides.

[0107] Specifically, combined Figure 6 As shown, when the acceleration value is in the second acceleration range, the movable part of the anti-shake module 30 is locked in the second 1 / 3 area of ​​its movable range. Optionally, when the acceleration value is in the second acceleration range, the center of the stage 32 is arranged to coincide with the center of the movable range. Optionally, when the acceleration value is in the second acceleration range, the center of the stage 32 is arranged to coincide with the center of the frame 31.

[0108] In some embodiments, when the acceleration value is in the second acceleration range, the position of the movable component is locked in the upstream 1 / 3 region in the acceleration direction F1 in its movable range. When the camera module 20 is subjected to unidirectional shaking, the position of the movable component is locked in the upstream 1 / 3 region, so that the movable component has a larger buffer space.

[0109] In some embodiments, when the acceleration value is in the second acceleration range, the position of the movable component is first locked in the upstream 1 / 3 region along the acceleration direction F1 in its range of motion, and then, if the acceleration direction F1 changes within a predetermined period of time, the position of the movable component is locked in the middle 1 / 3 region along the acceleration direction F1 in its range of motion, so that the locking position of the movable component can be adjusted in time according to the actual shaking situation, and sufficient buffer space can be provided for the movable component during unidirectional shaking, and buffer space can be set for two opposite sides of the movable component during reciprocating shaking to avoid collision of the movable component. Specifically, the predetermined period of time is 50ms, 100ms, 200ms or other time lengths set according to actual conditions.

[0110] Step S40 specifically includes step S41, after the acceleration value drops below the first acceleration range, releasing the position lock of the movable component. Specifically, when the acceleration value is within the first acceleration range, the movable component is locked in the 1 / 3 region upstream along the acceleration direction F1, but the acceleration value drops below the first acceleration range, by releasing the position lock of the movable component, it is avoided that the current or voltage needs to be continuously applied to the electromagnetic drive component, which can effectively reduce the power consumption of the camera module 20.

[0111] The step S40 specifically includes a step S42, in which the position lock of the movable part is released after the acceleration value drops below the second acceleration range. Specifically, when the acceleration value is within the second acceleration range, the movable part is locked in the upstream 1 / 3 region or the middle 1 / 3 region along the acceleration direction F1, but the acceleration value drops below the second acceleration range, by releasing the position lock of the movable part, it is avoided that the current or voltage needs to be continuously applied to the electromagnetic drive part, and the power consumption of the camera module 20 can be effectively reduced.

[0112] Furthermore, when the acceleration value is within the second acceleration range, causing the movable component to be locked in the middle 1 / 3 area along the acceleration direction F1 or in the middle 1 / 3 area, but the acceleration value subsequently drops below the first acceleration range, the position lock of the movable component is released and the autofocus or optical image stabilization function is restored.

[0113] Further, for step S42, when the acceleration value drops below the second acceleration range, the position of the movable component is locked in the middle 1 / 3 area or in the upstream 1 / 3 area within a set period of time, and the position lock of the movable component is released after the set period of time ends.

[0114] Optionally, in the case of unidirectional shaking, when the acceleration value drops below the second acceleration range, the position of the movable component continues to be locked in the upstream 1 / 3 area of ​​its movable range along the acceleration direction F1 for a set period of time thereafter to prevent unidirectional shaking from occurring again within a short period of time.

[0115] Optionally, in the case of unidirectional shaking, when the acceleration value drops below the second acceleration range, the position of the movable component is changed to be locked in the middle 1 / 3 area along the acceleration direction F1 in its range of motion within a set period of time thereafter, so as to prevent reciprocating shaking from occurring again in a short time. Understandably, in the case of deliberate shaking by the user, the acceleration is large. In the case of initial shaking, the adjustment speed of some optical adjustment structures is slow, and collisions or abnormal noises may inevitably occur. When the user confirms the internal condition again by shaking in a short period of time, ensure that the device is in a safe position to reduce the possibility of collision. Specifically, the set period is 3s, 5s or other time lengths set according to actual conditions.

[0116] Optionally, in the case of reciprocating shaking, when the acceleration value drops below the second acceleration range, the position of the movable part continues to be locked in the middle 1 / 3 area of ​​its movable range along the acceleration direction F1 for a set period of time thereafter to prevent reciprocating shaking from occurring again in a short time.

[0117] In some embodiments, when releasing the position lock of the movable component, the movable component is gradually moved to the unlocked position. Specifically, by moving the movable component to the unlocked position step by step, it is possible to avoid the movable component from shaking back and forth due to a large movement to the unlocked position, and prevent the movable component from colliding with the positioning component due to shaking.

[0118] For step S40, it may also be that when the acceleration value drops from any one of the first acceleration range and the second acceleration range to below the first acceleration range, the position lock of the movable component is released.

[0119] In some embodiments, in combination Figure 4 As shown, the mobile terminal 100 includes a plurality of camera modules 20. It is understandable that the plurality of camera modules 20 can be respectively used as a front camera 101, an ultra-wide-angle camera 102, a main camera 103 and a telephoto camera 104.

[0120] Furthermore, the multiple camera modules 20 of the mobile terminal 100 can be protected by the optical adjustment structure protection method. Since the front camera 101 is generally arranged away from the ultra-wide-angle camera 102, the main camera 103 and the telephoto camera 104, the relative movement direction of the movable parts inside is different in different camera modules 20. More specifically, when the ultra-wide-angle camera 102, the main camera 103 and the telephoto camera 104 are in the first falling state, the front camera 101 is in the second falling state, so the control unit needs to confirm the 1 / 3 area in the upstream along the acceleration direction F1 in the activity range of different camera modules 20 according to the installation position of the camera module 20 on the mobile terminal 100.

[0121] Specifically, the control unit and acceleration sensor of the mobile terminal 100 can also be used to implement other functions, such as software system operation or screen direction control, which is beneficial to saving hardware resources of the mobile terminal 100 and avoiding additional hardware requirements due to the implementation of the optical adjustment structure protection method.

[0122] Further, for the mobile terminal 100, among the multiple camera modules 20, at least one camera module 20 corresponds to an anti-shake module 30. The multiple camera modules 20 and the at least one anti-shake module 30 can be protected by the optical adjustment structure protection method. More specifically, a single acceleration sensor in the mobile terminal 100 can be used to confirm the magnitude and direction of the acceleration of the multiple camera modules 20 and the at least one anti-shake module 30. More specifically, the control unit in the mobile terminal 100 can be used to simultaneously control the movement of the active components in the multiple camera modules 20 and the at least one anti-shake module 30, so that when the multiple camera modules 20 and the at least one anti-shake module 30 are protected by the optical adjustment structure protection method, it is beneficial to reduce the requirements for the hardware resources of the mobile terminal 100. In some embodiments, when the camera device or the mobile terminal 100 is in a shooting state, the optical adjustment structure protection method is in an invalid state to prevent the autofocus function or the optical anti-shake function of the optical adjustment structure from being unable to be enabled due to the position locking of the active components. Specifically, in the shooting state, the user may hold the device in a violent motion state, causing the acceleration of the camera device, the anti-shake module 30 or the mobile terminal 100 to be within the first acceleration range or the second acceleration range. Since the optical adjustment structure protection method is in a failed state in the shooting state, the position locking of the movable component is avoided when the acceleration is within the first acceleration range or the second acceleration range.

[0123] The above implementation modes are merely descriptions of the preferred implementation modes of the present application, and are not intended to limit the scope of the present application. Without departing from the design spirit of the present application, various modifications and improvements made to the technical solutions of the present application by ordinary engineering and technical personnel in the field shall fall within the protection scope determined by the claims of the present application.

Claims

1. A method for protecting an optical adjustment structure, characterized in that: The steps include: Monitor the magnitude and direction of the acceleration value of the camera module; When the acceleration value is in a first acceleration range including gravity acceleration, locking the position of the movable component in a region of 1 / 3 upstream in the acceleration direction in its movable range; When the acceleration value is in a second acceleration range greater than the first acceleration range, locking the position of the movable component in a region in the middle 1 / 3 of its movable range along the acceleration direction, or in a region in the upstream 1 / 3 of its movable range along the acceleration direction; and After the acceleration value drops below the first acceleration range or below the second acceleration range, the position lock of the movable component is released.

2. The optical adjustment structure protection method according to claim 1, characterized in that: When the acceleration value is within the first acceleration range, the movable component is locked at a position at a boundary of the movable range that is upstream along the acceleration direction.

3. The optical adjustment structure protection method according to claim 2, characterized in that: A corresponding current is applied to the electromagnetic driving member in the movable component, so that the movable component is pressed against a boundary surface of the movable range located upstream along the acceleration direction under the action of magnetic force.

4. The optical adjustment structure protection method according to claim 1, characterized in that: The method further comprises the steps of: gradually resetting the movable component to the upstream 1 / 3 region after the movable component leaves the upstream 1 / 3 region due to inertia.

5. The optical adjustment structure protection method according to claim 4, characterized in that: When the movable part reaches the maximum stroke relative to the upstream 1 / 3 area under the action of inertia, the gradual resetting of the movable part begins; and / or the step width of the resetting movement occurring earlier is greater than the step width of the resetting movement occurring later.

6. The optical adjustment structure protection method according to claim 1, characterized in that: When the acceleration value is within the second acceleration range, the position of the movable component is locked at the midpoint of its movable range.

7. The optical adjustment structure protection method according to claim 1, characterized in that: When the acceleration value is in the second acceleration range, the position of the movable component is first locked in the upstream 1 / 3 area in the acceleration direction in its movable range. Thereafter, if the acceleration direction changes within a predetermined period of time, the position of the movable component is locked in the middle 1 / 3 area in the acceleration direction in its movable range.

8. The optical adjustment structure protection method according to claim 1, characterized in that: When the acceleration value drops below the second acceleration range, the position of the movable component is locked in the middle 1 / 3 area or in the upstream 1 / 3 area within a set period of time, and the position lock of the movable component is released after the set period of time ends.

9. The optical adjustment structure protection method according to claim 1, characterized in that: When releasing the position lock of the movable component, the movable component is gradually moved to the unlocking position.

10. A camera device, characterized in that: Used to implement the optical adjustment structure protection method as described in any one of claims 1 to 9.

11. An anti-shake module, characterized in that: Used to implement the optical adjustment structure protection method as described in any one of claims 1 to 9.

12. A mobile terminal, characterized in that: Used to implement the optical adjustment structure protection method as described in any one of claims 1 to 9, and provide protection for one or more optical adjustment structures.

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