Camera module, camera equipment and method for adjusting image plane

Abstract

The invention provides a camera module, camera equipment and a method for adjusting an image plane, and belongs to the technical field of camera shooting. The camera module comprises a supporting piece, an image sensor assembly, a motor assembly and a position sensor. The image sensor assembly is rotationally connected with the supporting piece. The motor assembly is located on the supporting piece and used for driving the image sensor assembly to rotate. The position sensor is configured to send out a target signal after the image sensor assembly rotates to the reference position. Therefore, for the condition that a plurality of camera devices are installed in a plurality of similar application scenes, the motor assemblies of the plurality of camera devices are firstly controlled to drive the image sensor assemblies to rotate to the reference position in a unified manner. And then, the motor assemblies of the plurality of camera devices are controlled to drive the image sensor assemblies to rotate by the same target rotation stroke from the reference position, so that unified adjustment of the image surfaces of the plurality of camera devices can be realized.

Description

Technical Field

[0001] The present disclosure relates to the field of camera technology, and in particular to a camera module, a camera device, and a method for adjusting an image plane. Background Art

[0002] Schaum's law means that when the extended surfaces of the three planes, namely the object plane (referred to as the object plane), the lens plane and the image plane (referred to as the image plane), intersect in a straight line, a completely clear image can be obtained.

[0003] In order to make the camera device satisfy Sham's law in various application scenarios, the camera device in the related art uses a motor to drive the image sensor to rotate to adjust the image plane of the camera device. The image plane is the photosensitive surface of the image sensor.

[0004] However, the camera equipment in the related art cannot obtain the tilt angle of the image sensor, and thus cannot obtain the tilt angle of the image plane. In the actual installation process, the staff needs to adjust the image plane separately according to each application scenario, which makes the installation process more complicated.

[0005] For example, when multiple cameras are installed in multiple similar application scenarios, although the angles of the image planes required by these multiple application scenarios are the same, due to the tolerance of the motor or structural assembly at the factory, the initial position of the image plane is different, and the current tilt angle of the image plane cannot be obtained in real time. Therefore, when adjusting the image plane to the required angle, the staff is required to adjust each camera device independently. Summary of the invention

[0006] The present disclosure provides a camera module, a camera device, and a method for adjusting an image plane. The camera module includes a position sensor, which can send a target signal after the image sensor assembly rotates to a reference position. In this way, in the case where multiple camera devices are installed in multiple similar application scenarios, the motor assemblies of the multiple camera devices are first controlled to drive the image sensor assembly to rotate to the reference position. Then, the multiple motor assemblies are controlled to drive the image sensor assembly to rotate from the reference position to the same target rotation stroke, so that the image planes of multiple camera devices can be uniformly adjusted. The technical solutions of the camera module, the camera device, and the method for adjusting the image plane are described as follows.

[0007] In a first aspect, the present disclosure provides a camera module. The camera module includes a support, an image sensor assembly, a motor assembly, and a position sensor. The image sensor assembly is rotatably connected to the support. The motor assembly is located on the support, and the motor assembly is transmission-connected to the image sensor assembly, and the motor assembly is used to drive the image sensor assembly to rotate. The position sensor is configured to send a target signal after the image sensor assembly rotates to a reference position.

[0008] Among them, the support member is used to carry other components of the camera module. The image sensor assembly includes an image sensor. Therefore, when the image sensor assembly rotates, the photosensitive surface of the image sensor also rotates, and then the tilt angle of the image plane of the camera module changes synchronously. The motor assembly includes at least a motor, and the motor can be a stepper motor.

[0009] In the technical solution provided by the present disclosure, the camera module includes a position sensor, and the position sensor can emit a target signal after the image sensor assembly rotates to a reference position. In this way, for the case where multiple camera devices are installed in multiple similar application scenarios, first control the motor assemblies of the multiple camera devices to drive the image sensor assemblies to rotate to the reference position, so that the multiple image sensor assemblies all rotate to the same tilt angle. Then, control the motor assemblies of the multiple camera devices to drive the image sensor assemblies to rotate the same rotation stroke from the reference position, that is, the image sensor assemblies of the multiple camera devices can be adjusted to the same target tilt angle, realizing the unified adjustment of the image planes of the multiple camera devices and simplifying the installation process of the camera devices.

[0010] In a possible implementation manner, the position sensor includes an optocoupler and an occlusion member. The optocoupler is located on the support member, and the optocoupler has a detection light path. The occlusion member is connected to the motor shaft of the motor assembly and can periodically turn on and off the detection light path by rotating. Among them, the reference position of the image sensor assembly is the limit position where the image sensor assembly rotates in the first direction, and the target signal is that the duration of the detection light path being connected or disconnected exceeds the target duration.

[0011] In the technical solution provided by the present disclosure, since the reference position of the image sensor assembly is the limit position of rotation, when the image sensor assembly rotates to the reference position, the motor shaft of the motor assembly cannot continue to rotate, so the occlusion member will also stop rotating. As a result, the detection light path is always in a connected state or a disconnected state.

[0012] Based on this characteristic, if the position sensor feeds back that the duration of the detection light path being connected or disconnected exceeds the target duration, it can be determined that the image sensor assembly has rotated to the reference position.

[0013] In addition, according to the on-off situation of the detection light path, the position sensor can also feed back the rotation stroke and rotation speed information of the motor shaft. Furthermore, according to the rotation stroke and rotation speed information of the motor shaft, the rotation stroke and position information of the image sensor assembly can be calculated.

[0014] In a possible implementation manner, the occlusion member includes a plurality of occlusion portions and a plurality of avoidance portions arranged circumferentially, and the occlusion portions and the avoidance portions are arranged alternately. When the occlusion portion is located on the detection light path, the detection light path is disconnected. When the avoidance portion is located on the detection light path, the detection light path is connected.

[0015] Among them, when the image sensor assembly rotates to the reference position, if the shielding part of the shielding member is located on the detection optical path, the target signal is that the duration of the disconnection of the detection optical path exceeds the target duration; and if the avoidance part of the shielding member is located on the detection optical path, the target signal is that the duration of the connection of the detection optical path exceeds the target duration.

[0016] In a possible implementation, the shielding member has a fan blade structure, the blades of the shielding member form the shielding part, and the gaps between adjacent two blades form the avoidance part.

[0017] In a possible implementation, the motor of the motor assembly includes a motor body and a speed reducer. The motor body has a motor shaft, one end of the motor shaft is connected to the shielding member, and the other end is connected to the speed reducer. The speed reducer is in transmission connection with the image sensor assembly. Among them, the speed reducer is in transmission connection with the image sensor assembly through a transmission mechanism, and the transmission mechanism is a rotation-to-linear mechanism or a gear set mechanism, etc. The motor can be a stepper motor.

[0018] The technical solution provided by the present disclosure reduces the output speed of the motor by providing that the motor includes a speed reducer, and can improve the adjustment accuracy of the image plane. Moreover, by providing that the shielding member is connected to the motor shaft instead of the output shaft of the speed reducer, the detection accuracy of the position sensor can be improved. For example, assuming that the reduction ratio is N:1 (N>1), and the deviation value between the rotation angle of the motor shaft detected by the position sensor and the actual rotation angle is 10°, then in fact, the deviation between the detected rotation angle of the output shaft of the speed reducer and the actual rotation angle is only 10° / N. Furthermore, by arranging the shielding member and the speed reducer at both ends of the motor shaft, interference between the speed reducer and the optocoupler is avoided, which is convenient for the arrangement of the optocoupler.

[0019] In a possible implementation, during the process of adjusting the image plane of the camera module, the motor assembly is configured to drive the image sensor assembly to rotate to the reference position and drive the image sensor assembly to rotate a target rotation stroke from the reference position.

[0020] In a possible implementation, the reference position of the image sensor assembly is the limit position of the image sensor assembly rotating along the first direction. Then, during the process of adjusting the image plane of the camera module, the motor assembly is configured to drive the image sensor assembly to rotate along the first direction to the reference position and drive the image sensor assembly to rotate a target rotation stroke from the reference position along the second direction. Among them, the second direction is opposite to the first direction.

[0021] In a possible implementation, the camera module further includes a controller. In the process of driving the image sensor assembly to rotate to the reference position, the controller is configured to determine that the image sensor assembly rotates to the reference position in response to a target signal sent by the position sensor. The controller may be located in the camera module or in other locations of the camera device to which the camera module belongs.

[0022] The technical solution provided by the present disclosure, for the case where the position sensor includes an optical coupler and a shielding member, when the controller determines that the duration of connection or disconnection of the detection light path exceeds the target duration, it is determined that the image sensor assembly has rotated to the reference position.

[0023] In a possible implementation, the position sensor is further configured to detect the rotational stroke of the image sensor assembly. In the process of driving the image sensor assembly to rotate the target rotational stroke, the controller is further configured to control the motor assembly to stop driving the image sensor assembly to rotate when it is determined based on the position sensor that the image sensor assembly has rotated the target rotational stroke.

[0024] The technical solution provided by the present disclosure can further improve the rotation accuracy of the image sensor assembly by setting a position sensor to detect the rotation stroke of the image sensor assembly. For example, after the controller sends an instruction to control the rotation of the motor shaft to the motor, the motor responds to the instruction and controls the rotation of the motor shaft, but the actual rotation stroke of the motor shaft may have some deviations from the rotation stroke indicated by the controller. For example, the controller instructs the stepper motor to rotate 1000 steps, but the stepper motor only rotates 990 steps (this is also called the step loss problem of the stepper motor), which will cause the actual rotation stroke of the image sensor assembly to be inconsistent with the target rotation stroke.

[0025] The present disclosure realizes the verification of the actual rotation stroke of the image sensor assembly by setting a position sensor to detect the rotation stroke of the image sensor assembly, ensures that the actual rotation stroke of the image sensor assembly is the same as the target rotation stroke, and improves the rotation accuracy of the image sensor assembly. The position sensor can calculate the rotation stroke of the image sensor assembly by detecting the rotation stroke of the motor shaft.

[0026] In a possible implementation, the motor assembly includes a motor, a rotation-to-linear mechanism and a driving member, and the rotation-to-linear mechanism includes a mounting seat, a lead screw and a nut. The lead screw is rotationally connected to the mounting seat, and the lead screw is transmission-connected to the motor shaft of the motor, and the nut is sleeved on the lead screw and slidably connected to the mounting seat. The driving member is connected to the nut, and the driving member is located on the rotation path of the image sensor assembly. The camera module also includes an elastic component, which is used to drive the image sensor assembly to abut against the driving member.

[0027] The above-mentioned rotation-to-linear mechanism can also be called a screw-nut mechanism or a ball screw mechanism. The screw can also be called a lead screw. The nut can also be called a slider. The screw-nut mechanism can also be replaced by a gear rack mechanism.

[0028] The technical solution provided by the present disclosure is that the motor drives the lead screw to rotate, the lead screw drives the nut to slide along the extension direction of the lead screw, and the nut drives the driving member to move. When the driving member moves, with the cooperation of the elastic component, the image sensor assembly rotates and can stabilize in the position after rotation. The present disclosure adopts a lead screw nut mechanism as a rotation-to-linear mechanism. Compared with the gear rack mechanism, the lead screw nut mechanism has higher accuracy in short strokes. In this way, the movement accuracy of the driving member is improved, thereby improving the adjustment accuracy of the image plane of the camera module.

[0029] In a possible implementation, when the image sensor assembly rotates to the reference position, the nut contacts one end of the mounting seat, thereby achieving the reference position of the image sensor assembly, which is the extreme position of the rotation of the image sensor assembly.

[0030] In a possible implementation, the rotation-to-linear mechanism further includes two guide rods and two first elastic members. The nut is slidably connected to the mounting seat through the two guide rods, and the two guide rods are respectively located on both sides of the lead screw and are parallel to the lead screw. The two first elastic members are respectively sleeved on the two guide rods, and one end of the two first elastic members abuts against the mounting seat, and the other end abuts against the same side of the nut. Among them, the first elastic member is a compression spring.

[0031] The technical solution provided by the present disclosure makes the engagement between the nut and the lead screw tighter by arranging two first elastic members to abut against the nut, thereby improving the motion accuracy of the rotating linear mechanism.

[0032] In a possible implementation, the motor assembly includes a motor, a rotation-to-straight-line mechanism, and a driver. The motor is connected to the driver through the rotation-to-straight-line mechanism, and the driver is located on the rotation path of the image sensor assembly. The camera module also includes an elastic component, and the elastic component and the driver are located on different sides of the rotation axis of the image sensor assembly, and the elastic component is used to drive the image sensor assembly to abut against the driver. Among them, the rotation-to-straight-line mechanism is used to convert the rotation of the motor into the movement of the driver. The rotation-to-straight-line mechanism can be a screw-nut mechanism, a ball screw mechanism, and a rack-and-pinion mechanism.

[0033] The technical solution provided by the present disclosure facilitates the arrangement of the elastic component, the driving component and the motor component by arranging the elastic component and the driving component on different sides of the rotation axis of the image sensor component.

[0034] In a possible implementation, the motor assembly includes a motor, a first gear, and a second gear. The motor shaft of the motor is in driving connection with the first gear. The second gear is fixed to the image sensor assembly, and the rotation axis of the second gear is collinear with the rotation axis of the image sensor assembly. The second gear meshes with the first gear. Among them, the motor can be a stepper motor. The motor may include a speed reducer.

[0035] According to the technical solution provided by the present disclosure, when the motor shaft of the motor assembly drives the first gear to rotate, the first gear drives the second gear to rotate, and the second gear drives the image sensor assembly to rotate. Thus, the adjustment of the image plane of the camera module is realized.

[0036] In a second aspect, the present disclosure provides a camera device. The camera device includes the camera module according to any one of the first aspect.

[0037] In a third aspect, the present disclosure provides a method for adjusting an image plane. The method is applied to the camera module according to any one of the first aspect. The method includes: controlling the motor assembly to drive the image sensor assembly to rotate to a reference position; controlling the motor assembly to drive the image sensor assembly to rotate a target rotation stroke from the reference position.

[0038] According to the technical solution provided by the present disclosure, for the case where multiple camera devices are installed in multiple similar application scenarios, by controlling the motor assemblies of the multiple camera devices to drive the image sensor assemblies to rotate to the reference position uniformly, the image sensor assemblies of the multiple camera devices are all rotated to the same inclination angle. Then, by controlling the motor assemblies of the multiple camera devices to drive the image sensor assemblies to rotate the target rotation stroke from the reference position, the image sensor assemblies of the multiple camera devices can be adjusted to the same target inclination angle, realizing the unified adjustment of the image planes of the multiple camera devices and simplifying the installation process of the camera devices.

[0039] In a possible implementation, the reference position of the image sensor assembly is the limit position where the image sensor assembly rotates in the first direction. Then, controlling the motor assembly to drive the image sensor assembly to rotate to the reference position includes: controlling the motor assembly to drive the image sensor assembly to rotate in the first direction to the reference position. And controlling the motor assembly to drive the image sensor assembly to rotate the target rotation stroke from the reference position includes: controlling the motor assembly to drive the image sensor assembly to rotate the target rotation stroke in the second direction from the reference position. Among them, the second direction is opposite to the first direction.

[0040] In a possible implementation, controlling the image sensor assembly to rotate to the reference position includes: responding to the target signal sent by the position sensor and determining that the image sensor assembly rotates to the reference position.

[0041] In a possible implementation, the position sensor is further configured to detect the rotation stroke of the image sensor assembly. Controlling the motor assembly to drive the image sensor assembly to rotate a target rotation stroke includes: when it is determined based on the position sensor that the image sensor assembly rotates the target rotation stroke, controlling the motor shaft of the motor assembly to stop rotating.

[0042] The technical solution provided by the present disclosure realizes the verification of the actual rotation stroke of the image sensor assembly by setting a position sensor to detect the rotation stroke of the image sensor assembly, ensures that the actual rotation stroke of the image sensor assembly is the same as the target rotation stroke, and improves the rotation accuracy of the image sensor assembly. BRIEF DESCRIPTION OF THE DRAWINGS

[0043] Figure 1 is a schematic diagram of a camera module provided by an embodiment of the present disclosure;

[0044] Figure 2 is a schematic diagram of a camera module provided by an embodiment of the present disclosure;

[0045] Figure 3 is an exploded view of a camera module provided by an embodiment of the present disclosure;

[0046] Figure 4 is a schematic diagram of an image sensor assembly provided by an embodiment of the present disclosure;

[0047] Figure 5 is a schematic diagram of a motor assembly and a position sensor provided by an embodiment of the present disclosure;

[0048] Figure 6 is a schematic diagram of a position sensor provided by an embodiment of the present disclosure;

[0049] Figure 7 is a schematic diagram of a shielding member provided by an embodiment of the present disclosure;

[0050] Figure 8 is a schematic diagram of another shielding member provided by an embodiment of the present disclosure;

[0051] Figure 9 is an exploded view of a motor assembly provided by an embodiment of the present disclosure;

[0052] Figure 10 is a schematic diagram of a motor assembly, a position sensor and a cable provided by an embodiment of the present disclosure;

[0053] Figure 11 is a schematic diagram of another camera module provided by an embodiment of the present disclosure;

[0054] Figure 12Schematic diagram of the setting positions of the first elastic component and the driving component provided by the embodiments of the present disclosure;

[0055] Figure 13 Schematic diagram of the setting positions of the second elastic component and the driving component provided by the embodiments of the present disclosure;

[0056] Figure 14 Schematic diagram of the setting positions of the third elastic component and the driving component provided by the embodiments of the present disclosure;

[0057] Figure 15 Schematic diagram of the setting positions of the fourth elastic component and the driving component provided by the embodiments of the present disclosure;

[0058] Figure 16 Schematic diagram of the state change of the camera module during the process of adjusting the image plane provided by the embodiments of the present disclosure;

[0059] Figure 17 Partial schematic diagram of the state change of the camera module during the process of adjusting the image plane provided by the embodiments of the present disclosure;

[0060] Figure 18 Schematic diagram of another camera module provided by the embodiments of the present disclosure;

[0061] Figure 19 Provided by the embodiments of the present disclosure Figure 18 Partial enlarged view of the part framed by the dotted line in

[0062] Figure 20 Exploded view of an image sensor assembly and an elastic component provided by the embodiments of the present disclosure;

[0063] Figure 21 Flow chart of a method for adjusting the image plane provided by the embodiments of the present disclosure.

[0064] Legend description

[0065] 1. Support member, 11. Support plate, 111. Mounting post, 12. Hinge seat, 13. Third elastic member;

[0066] 2. Image sensor assembly, 21. Carrier, 211. Limiting groove, 212. Rotating shaft, 213. Limiting portion, 22. Circuit board;

[0067] 3. Motor assembly, 31. Motor, 311. Motor body, 3111. Motor shaft, 312. Reducer, 3121. Reducer shaft, 32. Rotating-to-linear mechanism, 321. Mounting seat, 322. Lead screw, 323. Nut, 324. Guide rod, 325. First elastic member, 33. Driving member, 34. First gear, 35. Second gear;

[0068] 4. Position sensor, 41. Optocoupler, 410. Detection optical path, 411. Light emitting component, 412. Light receiving component, 42. Shading member, 421. Shading portion, 422. Avoidance portion;

[0069] 5. Elastic component, 51. Screw, 52. Second elastic member, 53. Baffle;

[0070] 6. Cable, 61. First cable, 62. Second cable. Specific embodiments

[0071] With the development of imaging devices, the aperture of the lens is getting larger, the pixels of the image sensor are getting higher, and the requirement for image clarity is also getting higher. According to the basic knowledge of geometric optics, the larger the aperture and the higher the pixels, the shallower the depth of field of the lens, and the more prominent the contradiction of insufficient depth of field.

[0072] When the imaging device satisfies the Scheimpflug's law, the depth of field of the imaging device can be improved, thereby expanding the range of clear imaging of the imaging device. Among them, Scheimpflug's law means that the extended planes of the object plane (referred to as the object surface), the lens plane, and the image plane (referred to as the image surface) intersect at a straight line.

[0073] To enable the imaging device to satisfy the Scheimpflug's law in various application scenarios. In the related art, the imaging device uses a motor to drive the image sensor to rotate to adjust the image plane of the imaging device. Thus, the depth of field expansion for a specific scenario is realized, and the larger the focal length, the more obvious the depth of field expansion effect. Among them, the photosensitive surface of the image sensor is the image plane. Therefore, when the image sensor rotates, the image plane of the imaging device will also change accordingly.

[0074] However, the imaging device in the related art cannot obtain the tilt angle of the image sensor, and thus cannot obtain the angle of the image plane. Therefore, during the actual installation process, the staff needs to adjust the image plane separately according to each application scenario, resulting in a cumbersome installation process.

[0075] For example, for the case of installing multiple imaging devices in multiple identical or similar application scenarios, although the angles of the image planes required for these multiple application scenarios are the same. However, due to the tolerances of the motor or structural assembly at the time of factory, there are differences in the initial positions of the image planes, and the current tilt angle of the image plane cannot be obtained in real time. Therefore, when adjusting the image plane to the required angle, it is required that the staff independently adjust each imaging device.

[0076] In view of the above technical problems, embodiments of the present disclosure provide an imaging module that can control an image sensor to rotate to a unified reference position. In this way, for the case where multiple imaging devices are installed in multiple identical or similar application scenarios, the image sensors of the multiple imaging devices can be first controlled to rotate to the reference position uniformly. Then, by controlling the image sensors of the multiple imaging devices to rotate the same target rotation stroke from the reference position, the unified adjustment of the image planes of the multiple imaging devices can be achieved, without the need for staff to perform independent adjustment on each imaging device, simplifying the installation process.

[0077] Next, an exemplary description will be given of the imaging module provided by the embodiments of the present disclosure. As Figures 1 - 3 shown, the imaging module includes a support member 1, an image sensor assembly 2, a motor assembly 3, and a position sensor 4. The image sensor assembly 2 is rotatably connected to the support member 1. The motor assembly 3 is located on the support member 1, and the motor assembly 3 is drivingly connected to the image sensor assembly 2, and the motor assembly 3 is used to drive the image sensor assembly 2 to rotate. The position sensor 4 is configured to emit a target signal after the image sensor assembly 2 rotates to the reference position.

[0078] Among them, the support member 1 is used to carry other components of the imaging module. In some examples, as Figure 3 shown, the support member 1 includes a support plate 11, a hinge seat 12, and a third elastic member 13. The hinge seat 12 is fixed to the support plate 11, and the rotating shaft 212 of the image sensor assembly 2 is rotatably connected to the hinge seat 12. The third elastic member 13 is sleeved around the rotating shaft 212 and abuts against the hinge seat 12 and the image sensor assembly 2 respectively. The third elastic member 13 is used to keep the position of the image sensor assembly 2 stable in the axial direction.

[0079] The image sensor assembly 2 includes an image sensor. Therefore, when the image sensor assembly 2 rotates, the photosensitive surface of the image sensor also rotates, and the angle of the image plane of the imaging module changes synchronously. In some examples, as Figure 4 shown, the image sensor assembly 2 includes a carrier 21, a circuit board 22, and an image sensor (not shown in the figure). The carrier 21 has a rotating shaft 212.

[0080] The motor assembly 3 includes at least a motor 31, and the motor 31 can be a stepper motor.

[0081] The position sensor 4 can emit a target signal after the image sensor assembly 2 rotates to the reference position. Therefore, the motor assembly 3 can drive the image sensor assembly 2 to rotate accurately to the reference position.

[0082] The embodiments of the present disclosure do not limit the implementation manner of the position sensor 4. Next, an exemplary description will be given. In some examples, as Figure 3 , Figure 5 andFigure 6 As shown, the position sensor 4 includes an optocoupler 41 and an occlusion member 42. The optocoupler 41 is located on the support member 1, and the optocoupler 41 has a detection optical path 410. The occlusion member 42 is connected to the motor shaft 3111 of the motor assembly 3, and the occlusion member 42 can periodically turn on and off the detection optical path 410 by rotating. In this way, if the occlusion member 42 stops rotating, the detection optical path 410 will always be in a connected state or a disconnected state, and which specific state it is in depends on the position where the occlusion member 42 stops rotating.

[0083] Based on the above characteristics of the optocoupler 41 and the occlusion member 42, in some examples, the reference position of the image sensor assembly 2 is set to the limit position where the image sensor assembly 2 rotates in the first direction. This makes it so that when the image sensor assembly 2 rotates to the reference position, the motor shaft 3111 cannot continue to rotate, and then the target signal is that the duration of the detection optical path 410 being connected or disconnected exceeds the target duration.

[0084] Among them, the implementation method for the reference position of the image sensor assembly 2 to be the limit position can be that when the image sensor assembly 2 rotates to the reference position, the motor shaft 3111 directly touches the limit structure and cannot rotate, or it can be that other components (such as the image sensor assembly 2 or the transmission member between the image sensor assembly 2 and the motor shaft 3111) are blocked, resulting in the image sensor assembly 2 being unable to continue rotating.

[0085] In some examples, as Figure 6 shown, the optocoupler 41 includes a light emitting component 411 and a light receiving component 412. The light emitting component 411 is used to emit a light beam to the light receiving component 412. The optical path between the light emitting component 411 and the light receiving component 412 is the detection optical path 410.

[0086] In some examples, as Figure 7 and Figure 8 shown, the occlusion member 42 includes a plurality of occlusion portions 421 and a plurality of avoidance portions 422 arranged circumferentially, and the occlusion portions 421 and the avoidance portions 422 are arranged alternately. When the occlusion portion 421 is located in the detection optical path 410, the detection optical path 410 is disconnected. When the avoidance portion 422 is located in the detection optical path 410, the detection optical path 410 is connected. Among them, the avoidance portion 422 is the gap between two adjacent occlusion portions 421.

[0087] Based on the above structure, when the image sensor assembly 2 rotates to the reference position, if the occlusion portion 421 is located in the detection optical path 410, the target signal is that the duration of the detection optical path 410 being disconnected exceeds the target duration, and if the avoidance portion 422 is located in the detection optical path 410, the target signal is that the duration of the detection optical path 410 being connected exceeds the target duration.

[0088] In some examples, as Figure 7As shown, the shielding member 42 has a fan blade structure, and the blades form a shielding portion 421, and the gap between two adjacent blades is an avoidance portion 422.

[0089] In some examples, as Figure 9 shown, the motor 31 of the motor assembly 3 includes a motor body 311 and a speed reducer 312. The motor body 311 has a motor shaft 3111. One end of the motor shaft 3111 is connected to the shielding member 42, and the other end is connected to the speed reducer 312. The speed reducer 312 is in transmission connection with the image sensor assembly 2. Wherein, the speed reducer 312 has a speed reducer shaft 3121, and the speed reducer shaft 3121 is in transmission connection with the image sensor assembly 2 through a transmission mechanism. The speed ratio of the motor shaft 3111 to the speed reducer shaft 3121 is N:1, and N is greater than 1.

[0090] The technical solution provided by the embodiments of the present disclosure reduces the output speed of the motor 31 by providing that the motor 31 includes a speed reducer 312, and can improve the adjustment accuracy of the image plane. And, by setting the shielding member 42 to be connected to the motor shaft 3111 instead of the speed reducer shaft 3121 of the speed reducer 312, the detection accuracy of the position sensor 4 can be improved. For example, if the deviation value between the rotation angle of the motor shaft 3111 detected by the position sensor 4 and the actual rotation angle is 10°, then the deviation value between the detected rotation angle of the speed reducer shaft 3121 and the actual rotation angle is only 10° / N. Assuming N = 5, the deviation is only 2°. Furthermore, by arranging the shielding member 42 and the speed reducer 312 at both ends of the motor shaft 3111, interference between the speed reducer 312 and the optocoupler 41 is avoided, which is convenient for the arrangement of the optocoupler 41.

[0091] In addition, according to the on-off situation of the detection light path 410 of the optocoupler 41, the rotation stroke and speed information of the motor shaft 3111 can also be fed back. In this way, since the position sensor 4 can determine the reference position of the motor shaft 3111 and the rotation stroke of the motor shaft 3111, the position sensor 4 can detect the rotation position of the motor shaft 3111, and then can determine the rotation stroke of the image sensor assembly 2.

[0092] In other examples, the position sensor 4 is a pressure sensor, and the pressure sensor is arranged on the support member 1. Then, when the image sensor assembly 2 touches the pressure sensor, the image sensor assembly 2 is blocked by the support member 1 (at this time, the image sensor assembly 2 rotates to the reference position, and the reference position is also the limit position), and the pressure sensor is pressed and emits a target signal.

[0093] Next, an exemplary description of the implementation manner of the motor assembly 3 will be given. In some examples, as Figures 1 - 3 、 Figure 5 and Figure 9As shown in the figure, the motor assembly 3 includes a motor 31, a rotation-to-linear mechanism 32, and a driving member 33. The motor 31 is connected to the driving member 33 through the rotation-to-linear mechanism 32. The rotation-to-linear mechanism 32 is used to convert the rotation of the motor shaft 3111 into the linear motion of the driving member 33. The driving member 33 is located on the rotation path of the image sensor assembly 2. The imaging module further includes an elastic component 5, and the elastic component 5 is used to drive the image sensor assembly 2 to abut against the driving member 33.

[0094] Among them, the elastic component 5 and the driving member 33 act together to keep the image sensor assembly 2 in a stable state, and the position of the image sensor assembly 2 will not change due to environmental vibration. Moreover, when the position of the driving member 33 changes, the rotation angle of the image sensor assembly 2 will also change accordingly.

[0095] The specific type of the rotation-to-linear mechanism 32 is not limited in the embodiments of the present disclosure. In some examples, the rotation-to-linear mechanism 32 adopts a gear-rack mechanism. The gear-rack mechanism includes a gear and a rack. The gear is in transmission connection with the motor shaft 3111 of the motor 31, the rack is slidably connected to the support member 1, and the rack meshes with the gear. The driving member 33 is fixed to the rack. In this way, when the motor shaft 3111 drives the gear to rotate, the gear drives the rack to move, and the rack drives the driving member 33 to move.

[0096] In other examples, as Figures 1 - 3 、 Figure 5 and Figure 9 shown, the rotation-to-linear mechanism 32 adopts a ball screw mechanism. The ball screw mechanism includes a mounting seat 321, a ball screw 322, and a nut 323. The ball screw 322 is rotatably connected to the mounting seat 321, and the ball screw 322 is in transmission connection with the motor shaft 3111 of the motor 31. The nut 323 sleeved on the ball screw 322 is slidably connected to the mounting seat 321. The driving member 33 is connected to the nut 323. In this way, when the motor shaft 3111 of the motor 31 drives the ball screw 322 to rotate, the ball screw 322 drives the nut 323 to slide along the extension direction of the ball screw 322, and the nut 323 drives the driving member 33 to move.

[0097] Among them, the above ball screw mechanism can also be replaced by a ball screw mechanism. The ball screw 322 can also be called a lead screw. The nut 323 can also be called a slider. Compared with the gear-rack mechanism, the ball screw mechanism has higher precision in short strokes. Therefore, by adopting the ball screw mechanism, the moving precision of the driving member 33 is improved, and further, the rotation precision of the image sensor assembly 2 and the adjustment precision of the image plane are improved.

[0098] In some examples, as Figure 9 shown, the motor 31 includes a motor body 311 and a reducer 312, and the reducer shaft 3121 of the reducer 312 is connected to the ball screw 322.

[0099] In some examples, such as Figure 9 shown, the lead screw nut mechanism further includes two guide rods 324. The nut 323 is slidably connected to the mounting base 321 through the two guide rods 324. The two guide rods 324 are respectively located on both sides of the lead screw 322 and are parallel to the lead screw 322.

[0100] In some examples, such as Figure 9 shown, the lead screw nut mechanism further includes two first elastic members 325. The two first elastic members 325 respectively surround the two guide rods 324, and one end of each of the two first elastic members 325 abuts against the mounting base 321, and the other end abuts against the same side of the nut 323.

[0101] The technical solution provided by the embodiments of the present disclosure makes the nut 323 mesh more tightly with the lead screw 322 by providing two first elastic members 325 to abut against the nut 323, which further improves the movement accuracy of the driving member 33.

[0102] For the motor assembly 3 employing the lead screw nut mechanism, as Figure 16 and Figure 17 shown in the middle part, when the image sensor assembly 2 rotates to the reference position, the nut 323 touches one end of the mounting base 321, which causes the image sensor assembly 2 to be unable to rotate further. That is, the reference position of the image sensor assembly 2 is also the limit position of rotation.

[0103] In some examples, such as Figures 1 - 3 shown, the image sensor assembly 2 has a limiting groove 211. The driving member 33 is located in the limiting groove 211 and can move in the limiting groove 211.

[0104] In some examples, such as Figure 10 shown, the imaging module further includes a cable 6. The cable 6 is used to supply power to the motor 31 and the optocoupler 41 and transmit corresponding control signals. Among them, the cable 6 includes a first cable 61 and a second cable 62. The first cable 61 is used for electrical connection with the motor 31, and the second cable 62 is used for electrical connection with the optocoupler 41.

[0105] In some examples, such as Figure 11 shown, the elastic component 5 includes a screw 51, a second elastic member 52, and a baffle 53. The screw 51 is fixed to the support member 1. The second elastic member 52 and the baffle 53 surround the screw 51. One end of the second elastic member 52 abuts against the baffle 53, and the other end abuts against the image sensor assembly 2.

[0106] In some examples, such as Figure 11 shown, the support member 1 has a mounting post 111, and the screw 51 is connected to the mounting post 111.

[0107] In some examples, such as Figure 4 shown, the image sensor assembly 2 (carrier 21) has a limiting portion 213, and the limiting portion 213 is used to abut against the second elastic member 52.

[0108] Next, an exemplary description of the relative positional relationship between the driving member 33 and the elastic assembly 5 will be given. In some examples, such as Figures 11 - 13 shown, the elastic assembly 5 and the driving member 33 are located on different sides of the rotating shaft 212 of the image sensor assembly 2. In this way, it is convenient to arrange the elastic assembly 5 and the driving member 33.

[0109] Exemplarily, such as Figure 11 and Figure 12 shown, the image sensor assembly 2 is located between the driving member 33 and the support member 1, and is also located between the elastic assembly 5 and the support member 1. As Figure 12 shown, when the driving member 33 moves in the direction of the arrow shown in the figure, the elastic assembly 5 extends, and drives the image sensor assembly 2 to rotate in the direction of the arrow shown in the figure, so that the image sensor assembly 2 abuts against the driving member 33. Correspondingly, when the driving member 33 moves in the direction opposite to the arrow shown in the figure (which can be understood as from bottom to top for reference Figure 12 ), the driving member 33 drives the image sensor assembly 2 to rotate in the direction opposite to the arrow shown in the figure, and the image sensor assembly 2 drives the elastic assembly 5 to retract. At the same time, under the elastic force of the elastic assembly 5, the image sensor assembly 2 abuts against the driving member 33.

[0110] Another example is, such as Figure 13 shown, the driving member 33 is located between the image sensor assembly 2 and the support member 1, and the elastic assembly 5 is located between the image sensor assembly 2 and the support member 1. When the driving member 33 moves in the direction of the arrow shown in the figure, the driving member 33 drives the image sensor assembly 2 to rotate in the direction of the arrow shown in the figure, and the image sensor assembly 2 drives the elastic assembly 5 to retract. At the same time, under the elastic force of the elastic assembly 5, the image sensor assembly 2 abuts against the driving member 33. Correspondingly, when the driving member 33 moves in the direction opposite to the arrow shown in the figure (which can be understood as from bottom to top for reference Figure 13 ), the elastic assembly 5 extends, and drives the image sensor assembly 2 to rotate in the direction opposite to the arrow shown in the figure, and makes the image sensor assembly 2 abut against the driving member 33.

[0111] In some other examples, such as Figure 14 and Figure 15 shown, the elastic assembly 5 and the driving member 33 are located on the same side of the rotation axis of the image sensor assembly 2.

[0112] Exemplarily, such as Figure 14As shown, the image sensor assembly 2 is clamped between the driving member 33 and the elastic assembly 5, and the driving member 33 is located between the image sensor assembly 2 and the support member 1. When the driving member 33 moves in the direction of the arrow shown in the figure, the elastic assembly 5 stretches and drives the image sensor assembly 2 to rotate in the direction of the arrow shown in the figure, and makes the image sensor assembly 2 abut against the driving member 33. Correspondingly, when the driving member 33 moves in the direction opposite to the arrow shown in the figure (which can be understood as referring from bottom to top Figure 14 ), the driving member 33 drives the image sensor assembly 2 to rotate in the direction opposite to the arrow shown in the figure, and the image sensor assembly 2 drives the elastic assembly 5 to retract. At the same time, under the elastic force of the elastic assembly 5, the image sensor assembly 2 abuts against the driving member 33.

[0113] Exemplarily, as Figure 15 shown, the image sensor assembly 2 is clamped between the driving member 33 and the elastic assembly 5, and the elastic assembly 5 is located between the image sensor assembly 2 and the support member 1. When the driving member 33 moves in the direction of the arrow shown in the figure, the driving member 33 drives the image sensor assembly 2 to rotate in the direction of the arrow shown in the figure. The image sensor assembly 2 drives the elastic assembly 5 to retract. At the same time, under the elastic force of the elastic assembly 5, the image sensor assembly 2 abuts against the driving member 33. Correspondingly, when the driving member 33 moves in the direction opposite to the arrow shown in the figure (which can be understood as referring from bottom to top Figure 15 ), the elastic assembly 5 stretches and drives the image sensor assembly 2 to rotate in the direction opposite to the arrow shown in the figure, and makes the image sensor assembly 2 abut against the driving member 33.

[0114] Next, please refer to Figure 16 and Figure 17 to exemplarily illustrate the process of adjusting the image plane of the camera module.

[0115] In some examples, during the process of adjusting the image plane of the camera module, the motor assembly 3 is configured to drive the image sensor assembly 2 to rotate to a reference position ( Figure 16 and Figure 17 from the upper part to the middle part), and drive the image sensor assembly 2 to rotate a target rotation stroke from the reference position ( Figure 16 and Figure 17 the process from the middle part to the lower part).

[0116] In some examples, for the reference position of the image sensor assembly 2, it is the case of the limit position where the image sensor assembly 2 rotates in the first direction. The motor assembly 3 is configured to drive the image sensor assembly 2 to rotate in the first direction to the reference position ( Figure 16 and Figure 17 from the upper part to the middle part), and drive the image sensor assembly 2 to rotate a target rotation stroke from the reference position in the second direction ( Figure 16 and Figure 17The second direction is opposite to the first direction.

[0117] In other examples, when the reference position of the image sensor assembly 2 is not the extreme position, since the relative relationship between the initial position of the image sensor assembly 2 and the reference position when leaving the factory is uncertain, the motor assembly 3 is configured to drive the image sensor assembly 2 to rotate in the first direction, and if the target signal is not received within the first target time, then drive the image sensor assembly 2 to rotate in the second direction until the target signal is received. Thereafter, the image sensor assembly 2 is driven to rotate from the reference position to the target rotation stroke.

[0118] In some examples, the camera module also includes a controller. During the process of driving the image sensor assembly 2 to rotate to a reference position, the controller is configured to determine whether the image sensor assembly 2 rotates to the reference position in response to a target signal sent by the position sensor 4.

[0119] In some examples, for the case where the position sensor 4 is also capable of detecting the rotational travel of the image sensor assembly 2, during the process of driving the image sensor assembly 2 to rotate the target rotational travel, the controller is further configured to control the motor shaft 3111 of the motor assembly 3 to stop rotating when it is determined based on the position sensor 4 that the image sensor assembly 2 has rotated the target rotational travel.

[0120] The technical solution provided by the embodiment of the present disclosure realizes the verification of the actual rotation stroke of the image sensor assembly 2 by setting the position sensor 4 to detect the rotation stroke of the image sensor assembly 2, realizes the closed-loop control of the rotation of the image sensor assembly 2, ensures that the actual rotation stroke of the image sensor assembly 2 is the same as the target rotation stroke, and improves the rotation accuracy of the image sensor assembly 2.

[0121] In addition to using the motor assembly 3 including the rotary-to-linear mechanism 32, in other examples, such as Figure 18 and Figure 19 As shown, the motor assembly 3 includes a motor 31, a first gear 34 and a second gear 35. The motor shaft 3111 of the motor 31 is in transmission connection with the first gear 34. The second gear 35 is fixed to the image sensor assembly 2, and the rotation axis of the second gear 35 is colinear with the rotation axis of the image sensor assembly 2, and the second gear 35 is meshed with the first gear 34.

[0122] In this way, when the motor shaft 3111 of the motor 31 drives the first gear 34 to rotate, the first gear 34 drives the second gear 35 to rotate, and the second gear 35 drives the image sensor assembly 2 to rotate. Thus, the image plane of the camera module is adjusted.

[0123] In some examples, such as Figure 18 andFigure 20 As shown, the camera module further includes an elastic component 5, and the elastic component 5 is used to drive the second gear 35 to mesh tightly with the first gear 34.

[0124] Of course, in some other examples, after the first gear 34 and the second gear 35 are meshed, the first gear 34 completes the limit of the second gear 35, that is, completes the limit of the image sensor assembly 2. Therefore, the camera module may not include the elastic component 5. Among them, for the case with the elastic component 5, the meshing between the second gear 35 and the first gear 34 is tighter, making the angle of the image sensor assembly 2 more accurate.

[0125] For Figures 18 - 20 the shown technical solution, when the image sensor assembly 2 rotates to the reference position, the image sensor assembly 2 can touch the support 1, that is, the reference position of the image sensor assembly 2 is the reference position for rotation in a certain direction (such as the first direction).

[0126] The embodiments of the present disclosure provide a camera device, and the camera device includes the above camera module. Among them, the camera device can be applied to cameras, digital cameras, video conferencing systems, etc.

[0127] In some examples, the camera module can be integrated in the camera device. For example, Figure 18 the shown camera device.

[0128] In some other examples, the camera module is bonded to other components of the camera device. For example, Figure 1 for the shown camera module, the support 1 of the camera module can be fixedly connected to the lens by gluing.

[0129] The embodiments of the present disclosure provide a method for adjusting the image plane, and the method is applied to the above camera module or the above camera device, for example, applied to the controller of the camera module or the camera device. As Figure 21 shown, the method includes the following steps.

[0130] In step 2101, control the motor assembly 3 to drive the image sensor assembly 2 to rotate to the reference position.

[0131] For the technical solution provided by the embodiments of the present disclosure, when the controller receives the target signal sent by the position sensor 4, it determines that the image sensor assembly 2 has rotated to the reference position and can control the motor assembly 3 to stop rotating.

[0132] In some examples, for the case where the reference position of the image sensor component 2 is the limit position of the rotation of the image sensor component 2 in the first direction. Then, during the process of controlling the motor component 3 to drive the image sensor component 2 to rotate to the reference position, the motor component 3 is controlled to drive the image sensor component 2 to rotate in the first direction to the reference position.

[0133] In other examples, for the case where the reference position of the image sensor component 2 is not the limit position, since the relative relationship between the initial position of the image sensor component 2 and the reference position at the time of factory is uncertain, during the process of controlling the image sensor component 2 to rotate to the reference position, first control the motor component 3 to drive the image sensor component 2 to rotate in the first direction. If the target signal is not received within the first target duration, then control the motor component 3 to drive the image sensor component 2 to rotate in the second direction until the target signal is received.

[0134] In step 2102, control the motor component 3 to drive the image sensor component 2 to rotate a target rotation stroke from the reference position.

[0135] In some examples, for the case where the reference position of the image sensor component 2 is the limit position of the rotation of the image sensor component 2 in the first direction. Then, during the process of controlling the motor component 3 to drive the image sensor component 2 to rotate a target rotation stroke from the reference position, the motor component 3 is controlled to drive the image sensor component 2 to rotate a target rotation stroke in the second direction from the reference position. Here, the second direction is opposite to the first direction.

[0136] In some examples, for the case where the position sensor 4 can also detect the rotation stroke of the image sensor component 2, for example, the case where the position sensor 4 includes an optocoupler 41 and an occlusion member 42. During the process of controlling the motor component 3 to drive the image sensor component 2 to rotate a target rotation stroke from the reference position, when it is determined based on the position sensor 4 that the image sensor component 2 has rotated the target rotation stroke, control the motor shaft 3111 of the motor component 3 to stop rotating.

[0137] The technical solution provided by the embodiments of the present disclosure realizes the verification of the actual rotation stroke of the image sensor component 2 by setting the position sensor 4 to detect the rotation stroke of the image sensor component 2, realizes the closed-loop control of the rotation of the image sensor component 2, ensures that the actual rotation stroke of the image sensor component 2 is the same as the target rotation stroke, and improves the rotation accuracy of the image sensor component 2.

[0138] In summary, the embodiments of the present disclosure provide a method for adjusting the image plane. For the case of installing multiple imaging devices in multiple similar application scenarios, by adopting this method for adjusting the image plane, it is possible to control the motor assembly 3 of multiple imaging devices to drive the image sensor assembly 2 to rotate uniformly to a reference position, so that the image sensor assemblies 2 of multiple imaging devices are all rotated to the same reference angle. Then, by controlling the motor assembly 3 of multiple imaging devices to drive the image sensor assembly 2 to rotate a target rotation stroke from the reference position, the image sensor assemblies 2 of multiple imaging devices can be adjusted to the same target angle, realizing the unified adjustment of the image planes of multiple imaging devices and simplifying the installation process of the imaging devices.

[0139] The terms used in the embodiments of the present disclosure are only for explaining the embodiments of the present disclosure and are not intended to limit the present disclosure. Unless otherwise defined, the technical terms or scientific terms used in the embodiments of the present disclosure should have the ordinary meanings understood by those of ordinary skill in the field to which the present disclosure belongs. The "first", "second" and similar terms used in the specification and claims of the present disclosure do not indicate any order, quantity or importance, but are only used to distinguish different components. Similarly, the terms such as "a" or "one" do not indicate a quantity limitation, but indicate that there is at least one. The terms such as "including" or "comprising" mean that the elements or objects appearing before "including" or "comprising" cover the elements or objects listed after "including" or "comprising" and their equivalents, and do not exclude other elements or objects. The terms such as "up", "down", "left", "right" are only used to represent relative position relationships. When the absolute position of the object being described changes, the relative position relationship may also change accordingly. "Multiple" means two or more, unless otherwise clearly defined.

[0140] The above are only optional embodiments of the present disclosure and are not intended to limit the present disclosure. Any modifications, equivalent replacements, improvements, etc. made within the principles of the present disclosure shall be included in the protection scope of the present disclosure.

Claims

1. An imaging module, characterized in that, The camera module comprises a support (1), an image sensor assembly (2), a motor assembly (3) and a position sensor (4); The image sensor assembly (2) is rotatably connected to the support member (1); The motor component (3) is located on the support member (1), and the motor component (3) is transmission-connected to the image sensor component (2), and the motor component (3) is used to drive the image sensor component (2) to rotate; The position sensor (4) is configured to send out a target signal after the image sensor assembly (2) rotates to a reference position.

2. The imaging module according to claim 1, wherein The position sensor (4) comprises an optical coupler (41) and a shielding member (42), wherein the optical coupler (41) is located on the support member (1), and the optical coupler (41) has a detection optical path (410), and the shielding member (42) is connected to the motor shaft (3111) of the motor assembly (3), and can periodically open and close the detection optical path (410) by rotating; The reference position of the image sensor assembly (2) is the extreme position of rotation of the image sensor assembly (2), and the target signal is the duration of connection or disconnection of the detection light path (410) exceeding the target duration.

3. The camera module according to claim 2, wherein The shielding member (42) comprises a plurality of shielding portions (421) and a plurality of avoiding portions (422) arranged in a circumferential direction, and the shielding portions (421) and the avoiding portions (422) are arranged alternately; When the shielding portion (421) is located in the detection light path (410), the detection light path (410) is disconnected, and when the avoiding portion (422) is located in the detection light path (410), the detection light path (410) is connected.

4. The imaging module according to claim 2 or 3, characterized in that, The motor (31) of the motor assembly (3) comprises a motor body (311) and a reducer (312); The motor body (311) comprises the motor shaft (3111), one end of the motor shaft (3111) is connected to the shielding member (42), and the other end is connected to the reducer (312), and the reducer (312) is transmission-connected to the image sensor assembly (2).

5. The imaging module according to any one of claims 1-4, characterized in that, In the process of adjusting the image plane of the camera module, the motor component (3) is configured to drive the image sensor component (2) to rotate to the reference position, and drive the image sensor component (2) to rotate a target rotation stroke from the reference position.

6. The camera module according to any one of claims 1-5, characterized in that, The reference position of the image sensor component (2) is the extreme position of the image sensor component (2) when rotating along the first direction; In the process of adjusting the image plane of the camera module, the motor assembly (3) is configured to drive the image sensor assembly (2) to rotate along the first direction to the reference position, and drive the image sensor assembly (2) to rotate from the reference position along the second direction to a target rotation stroke, wherein the second direction is opposite to the first direction.

7. The camera module according to claim 5 or 6, characterized in that, The camera module further includes a controller. During the process of driving the image sensor assembly (2) to rotate to the reference position, the controller is configured to determine that the image sensor assembly (2) rotates to the reference position in response to the target signal sent by the position sensor (4).

8. The camera module according to claim 7, wherein, The position sensor (4) is further configured to detect the rotation stroke of the image sensor assembly (2); During the process of driving the image sensor assembly (2) to rotate a target rotation stroke, the controller is further configured to control the motor assembly (3) to stop driving the image sensor assembly (2) to rotate when it is determined based on the position sensor (4) that the image sensor assembly (2) has rotated the target rotation stroke.

9. The camera module according to any one of claims 1-8, characterized in that, The motor assembly (3) includes a motor (31), a rotation-to-linear mechanism (32), and a driving member (33). The rotation-to-linear mechanism (32) includes a mounting seat (321), a lead screw (322), and a nut (323); The lead screw (322) is rotatably connected to the mounting seat (321), and the lead screw (322) is in transmission connection with the motor shaft (3111) of the motor (31). The nut (323) sleeves the lead screw (322) and is slidably connected to the mounting seat (321); The driving member (33) is connected to the nut (323), and the driving member (33) is located on the rotation path of the image sensor assembly (2); The camera module further includes an elastic component (5), and the elastic component (5) is used to drive the image sensor assembly (2) to abut against the driving member (33).

10. The camera module according to claim 9, wherein, When the image sensor assembly (2) rotates to the reference position, the nut (323) touches one end of the mounting seat (321).

11. The camera module according to claim 9 or 10, characterized in that, The rotation-to-linear mechanism (32) further includes two guide rods (324) and two first elastic members (325); The nut (323) is slidably connected to the mounting seat (321) through the two guide rods (324). The two guide rods (324) are respectively located on both sides of the lead screw (322) and are parallel to the lead screw (322); The two first elastic members (325) respectively sleeve the two guide rods (324), and one end of the two first elastic members (325) abuts against the mounting seat (321), and the other end abuts against the same side of the nut (323).

12. The camera module according to any one of claims 1-11, characterized in that, The motor assembly (3) includes a motor (31), a rotation-to-linear mechanism (32), and a driving member (33); The motor (31) is in transmission connection with the driving member (33) through the rotation-to-linear mechanism (32), and the driving member (33) is located on the rotation path of the image sensor assembly (2); The camera module further includes an elastic component (5). The elastic component (5) and the driving member (33) are located on different sides of the rotation axis of the image sensor assembly (2), and the elastic component (5) is used to drive the image sensor assembly (2) to abut against the driving member (33).

13. The camera module according to any one of claims 1-8, characterized in that, The motor assembly (3) includes a motor (31), a first gear (34), and a second gear (35); A motor shaft (3111) of the motor (31) is in driving connection with the first gear (34); The second gear (35) is fixed to the image sensor assembly (2), and a rotation axis of the second gear (35) is collinear with a rotation axis of the image sensor assembly (2), and the second gear (35) meshes with the first gear (34).

14. An imaging device, characterized in that, The imaging device includes the imaging module according to any one of claims 1-13.

15. A method for adjusting an image plane, characterized in that, The method is applied to the imaging module according to any one of claims 1-13, and the method includes: Controlling the motor assembly (3) to drive the image sensor assembly (2) to rotate to a reference position; Controlling the motor assembly (3) to drive the image sensor assembly (2) to rotate a target rotation stroke from the reference position.

16. The method according to claim 15, characterized in that, The reference position of the image sensor assembly (2) is an extreme position where the image sensor assembly (2) rotates in a first direction; The controlling the motor assembly (3) to drive the image sensor assembly (2) to rotate to the reference position includes: controlling the motor assembly (3) to drive the image sensor assembly (2) to rotate in the first direction to the reference position; The controlling the motor assembly (3) to drive the image sensor assembly (2) to rotate the target rotation stroke from the reference position includes: controlling the motor assembly (3) to drive the image sensor assembly (2) to rotate the target rotation stroke in a second direction from the reference position, where the second direction is opposite to the first direction.

Images