Reflection module and periscopic camera module thereof

Abstract

The invention discloses a reflection module and a periscopic camera module thereof, and the reflection module comprises a light path turning element which is used for reflecting light incident along a first optical axis to be emergent along a second optical axis; the rotating frame is coupled to the light path turning element and supports the light path turning element to rotate around a first rotating shaft, and the first rotating shaft is parallel to the second optical axis and is not collinear with the second optical axis; a base for accommodating the rotating frame; the rotary driving part is configured to drive the rotary frame to rotate around a first rotary shaft relative to the base; a rotation support portion pressed between the rotation frame and the base in a direction parallel to the first optical axis and held in frictional contact with at least one of the rotation frame and the base; the rotation supporting part comprises a rotation guiding shaft and a rotation supporting piece which are arranged at intervals in the direction parallel to the first rotation shaft, the first rotation shaft penetrates through the center of the rotation guiding shaft and the center of the rotation supporting piece, and the rotation guiding shaft extends in the direction parallel to the first rotation shaft.

Description

Technical Field

[0001] The present invention relates to the field of optical imaging, and in particular to a reflection module and a periscope camera module thereof. Background Art

[0002] Camera modules are an indispensable part of mobile electronic devices. With the further development of camera module technology, users' demands for camera modules are becoming more and more refined. The development of camera products not only needs to meet the requirements of high performance such as background blur, night shooting, dual-camera zoom, etc., but also needs to meet the requirements of miniaturization, lightness, and compactness. In particular, the periscope camera module has a longer focal length based on the folded optical path through the optical path turning part, which can meet the requirements of high zoom and lightness at the same time, and has broad market prospects.

[0003] At present, the reflective module of the periscope camera module usually rotates in a direction parallel to the incident light axis, which easily causes the loss of image information, and a part of the light participating in the imaging will also be blocked at the aperture, causing the performance of the periscope camera module to decrease and affecting the final image quality. Summary of the invention

[0004] One object of the present invention is to provide a reflection module, which is conducive to correcting image blur caused by rotational jitter, thereby reducing phase difference and improving imaging quality.

[0005] Another object of the present invention is to provide a camera module having the above-mentioned reflection module.

[0006] To achieve at least one of the above purposes, the technical solution adopted by the present invention is: a reflection module, comprising: an optical path turning element, used to reflect the light incident along a first optical axis to emerge along a second optical axis; A rotating frame, coupled to the optical path turning element, and supporting the optical path turning element to rotate around a first rotating axis, wherein the first rotating axis is parallel to the second optical axis; A base, used for accommodating the rotating frame; A rotation driving unit, configured to drive the rotating frame to rotate relative to the base around a first rotation axis; A rotating support portion is crimped between the rotating frame and the base along a direction parallel to the first optical axis, and maintains frictional contact with at least one of the rotating frame and the base; the rotating support portion includes a rotating guide shaft and a rotating support member spaced apart along a direction parallel to the first rotating axis, the first rotating axis passes through the center of the rotating guide shaft and the center of the rotating support member, wherein the rotating guide shaft extends along a direction parallel to the first rotating axis.

[0007] Preferably, the rotating guide axis has a friction contact line with at least one of the rotating frame and the base extending in a direction parallel to the first rotating axis, and the projection of the rotating guide axis in a direction parallel to the first optical axis has an edge parallel to the first rotating axis.

[0008] Preferably, the rotating guide shaft has a first central axis passing through its center, the rotating support has a second central axis passing through its center, the first central axis, the second central axis and the first rotating axis coincide, and the first rotating axis is not colinear with the second optical axis.

[0009] Preferably, the rotation guide axis is a convex axis protruding from the rotation frame or the base in a direction parallel to the first optical axis, and the rotation support member is a boss protruding from the rotation frame or the base in a direction parallel to the first optical axis, wherein the convex axis extends in a direction parallel to the first rotation axis, and the boss has a rotational symmetry axis parallel to the first optical axis.

[0010] Preferably, the convex shaft has a first plane extending along a plane parallel to the plane where the second optical axis and the third axis are located, and a first curved surface protruding from the first plane along a direction parallel to the first optical axis, the first plane is integrally connected to the surface of the rotating frame facing the base, the surface of the base facing the rotating frame has a guide rail, the convex shaft and the guide rail are arranged opposite to each other in a direction parallel to the first optical axis, the first curved surface of the convex shaft is in frictional contact with the inner surface of the guide rail, wherein the first optical axis, the second optical axis and the third axis are perpendicular to each other.

[0011] Preferably, the boss has a second plane extending in parallel to the plane where the second optical axis and the third axis are located, and a second curved surface protruding from the second plane in a direction parallel to the first optical axis, the second plane is integrally connected to the surface of the rotating frame facing the base, the surface of the base facing the rotating frame has a guide groove, the boss and the guide groove are arranged opposite to each other in a direction parallel to the first optical axis, and the second curved surface of the boss is in frictional contact with the inner surface of the guide groove.

[0012] Preferably, the rotating guide shaft is a roller, the roller has a length extending in a direction parallel to the first optical axis, the rotating support is a ball, the surface of the rotating frame facing the base has a first upper guide rail and a first upper guide groove, the surface of the base facing the rotating frame has a first lower guide rail and a first lower guide groove, the first upper guide rail and the first lower guide rail are arranged relative to each other in a direction parallel to the first optical axis, the first upper guide groove and the first lower guide groove are arranged relative to each other in a direction parallel to the first optical axis, the roller is movably clamped between the first upper guide rail and the first lower guide rail, and the roller is movably clamped between the first upper guide groove and the first lower guide groove.

[0013] As a preferred embodiment, the rotating drive unit includes at least one rotating magnet and at least one rotating coil, the at least one rotating magnet includes a first rotating magnet and a second rotating magnet arranged at intervals in a direction parallel to the third axis, and the at least one rotating coil includes a first rotating coil and a second rotating coil arranged at intervals in a direction parallel to the third axis, wherein the first rotating magnet and the first rotating coil are arranged opposite to each other in a direction parallel to the first optical axis, and the second rotating magnet and the second rotating coil are arranged opposite to each other in a direction parallel to the first optical axis, and when the first rotating coil and the second rotating coil are energized, the first rotating magnet and the first rotating coil interact with each other, and the second rotating magnet and the second rotating coil interact with each other, so as to drive the rotating frame to rotate around the first rotating axis relative to the base.

[0014] Preferably, the first rotating magnet, the second rotating magnet and the rotating support part are located at the bottom of the rotating frame, wherein the first rotating magnet and the second rotating magnet are located on both sides of the rotating support part along a direction parallel to the third axis.

[0015] Preferably, viewed from a direction parallel to the second optical axis, during the rotational motion of the rotating frame around the first rotational axis, a change in the distance between the first rotating magnet and the first rotating coil is opposite to a change in the distance between the second rotating magnet and the second rotating coil.

[0016] Preferably, the reflection module further includes a movable carrier, a pitch support portion and a pitch drive portion, wherein the movable carrier is movably arranged on the rotating frame, the pitch support portion is crimped between the movable carrier and the rotating frame, and a second rotation axis passes through the pitch support portion, wherein the second rotation axis is parallel to the third axis, and the pitch drive portion is configured to drive the movable carrier to drive the optical path turning element to perform a pitch movement around the second rotation axis.

[0017] As a preference, the pitch support portion and the pitch drive portion are located on different sides of the movable carrier, wherein the pitch support portion is arranged at the bottom of the movable carrier, and the pitch drive portion is arranged at the back of the movable carrier.

[0018] Preferably, the movable carrier includes a carrier body and a carrier side wall that are integrally connected, the carrier side wall includes a first carrier side wall and a second carrier side wall that are spaced apart along a direction parallel to a third axis, the first carrier side wall and the second carrier side wall respectively have a first recess and a second recess that are recessed inward along a first optical axis direction; the rotating frame includes a frame body and a support arm extending from the frame body along a first direction, the support arm includes a first support arm and a second support arm that are spaced apart along a direction parallel to the third axis, the first support arm extends into the first recess, and the second support arm extends into the second recess; wherein the pitch support portion includes a first pitch support member and a second pitch support member, the first pitch support member is clamped between the first support arm and the first recess, and the second pitch support member is clamped between the second support arm and the second recess.

[0019] Preferably, an imaginary line connecting the first pitch support member and the second pitch support member projected in a direction parallel to the first optical axis is perpendicular to an imaginary line connecting the rotation guide axis and the rotation support member projected in a direction parallel to the first optical axis.

[0020] Preferably, the pitch driving unit comprises at least one pitch magnet and at least one pitch coil, the at least one pitch magnet and the at least one pitch coil are arranged relative to each other in a direction parallel to the second optical axis, the at least one pitch coil and the at least one pitch magnet interact with each other to drive the movable carrier to perform a pitch movement around the second rotation axis, wherein the at least one pitch magnet is arranged on the back of the movable carrier, and the at least one rotating magnet is arranged on the bottom of the rotating frame.

[0021] Preferably, the reflection module also includes a position sensing component, which includes at least one rotation sensing element and at least one rotation sensing magnet, the at least one rotation sensing element includes a first rotation sensing element and a second rotation sensing element, the at least one rotation sensing magnet includes a first rotation sensing magnet and a second rotation sensing magnet, the first rotation sensing element obtains first rotating magnetic field information of the first rotating magnet, and the second rotation sensing element obtains second rotating magnetic field information of the second rotating magnet, so that information about the rotation of the movable carrier around the first rotation axis can be calculated through the first rotating magnetic field information and the second rotating magnetic field information, and information interference of the rotation of the movable carrier around the second rotation axis can be eliminated.

[0022] To achieve at least one of the above purposes, the technical solution adopted by the present invention is: a periscope camera module, comprising: a reflection module as described above, wherein the reflection module is configured to reflect light incident along a first optical axis to emerge along a second optical axis; a lens module, wherein the lens module is configured to receive the light from the reflection module and continue to propagate the light along a second optical axis; A photosensitive module, wherein the photosensitive module is configured to receive light and perform imaging; A base body, the base body having a containing cavity, the reflection module and the lens module are arranged in the containing cavity, and the base of the reflection module is integrally or separately arranged on the base body; A shell is disposed on the base.

[0023] Compared with the prior art, the present invention has the following beneficial effects: When the rotating frame is driven to rotate around the first rotating axis, the rotating direction of the rotating frame is limited by the rotating guide shaft to only be able to rotate around the first rotating axis without interference of the rocking motion, so as to improve the rotation accuracy of the reflection module. BRIEF DESCRIPTION OF THE DRAWINGS

[0024] Figure 1 is a cross-sectional schematic diagram of a periscope camera module according to some embodiments of the present invention.

[0025] Figure 2 is a three-dimensional schematic diagram of a reflection module according to some embodiments of the present invention.

[0026] Figure 3 It is a schematic exploded view of a rotating frame and a base from an upward perspective according to some embodiments of the present invention.

[0027] Figure 4 1 is an exploded schematic diagram of a rotating frame and a base from a top view according to some embodiments of the present invention.

[0028] Figure 5 is a schematic cross-sectional view of a rotation support according to some embodiments of the present invention.

[0029] Figure 6 2 is a schematic cross-sectional view of a rotating support portion according to some other embodiments of the present invention.

[0030] Figure 7 is a cross-sectional schematic diagram of a rotation driving portion according to some embodiments of the present invention.

[0031] Figure 8 is an exploded schematic diagram of a movable carrier and a rotating frame according to some embodiments of the present invention.

[0032] Fig. 9is a stereoscopic schematic diagram of a rotating frame according to some embodiments of the present invention from a bottom-up perspective.

[0033] Fig.10 is a schematic top view of a rotation support portion and a pitch support portion according to some embodiments of the present invention.

[0034] Fig.11 3D schematic diagram of the first magnetic conductive member and the second magnetic conductive member according to some embodiments of the present invention.

[0035] Fig.12 Schematic diagram of an exploded view of a reflection module according to some other embodiments of the present invention.

[0036] In the figure: 10, reflection module; 11, optical path turning element; 12, movable carrier; 121, carrier body; 1211, carrier back; 1212, carrier bottom; 1213, bearing part; 122, carrier side wall; 1221, first carrier side wall; 1222, second carrier side wall; 12211, first recess; 12221, second recess; 122111, first upper slide groove; 122211, second upper slide groove; 13, rotating frame; 131, frame body; 132, support arm; 1321, first support arm; 1322, second support arm; 13211, first lower slide groove; 13221, second lower slide groove; 1323, first upper guide rail; 1324, first upper guide groove; 14, base; 141, guide rail; 142, guide groove; 1411, first lower guide rail; 1421, first lower guide groove; 15, rotation support; 151, rotation guide shaft; 1511, convex shaft; 1512, roller; 152, rotation support; 1521, boss; 1522, Ball; 15111, first plane; 15112, first arc surface; 15211, second plane; 15212, second arc surface; 16, pitch support part; 161, first pitch support member; 1611, first pitch ball; 162, second pitch support member; 1621, second pitch ball; 17, rotation drive part; 171, rotating magnet; 1711, first rotating magnet; 1712, second rotating magnet; 172, rotating coil; 1721, first rotating coil; 172 2. second rotating coil; 18. pitch driving unit; 181. pitch magnet; 1811. first pitch magnet; 182. pitch coil; 1821. first pitch coil; 1822. second pitch coil; 19. position sensing component; 191. rotation sensing element; 1911. first rotation sensing element; 1912. second rotation sensing element; 192. rotation sensing magnet; 1921. first rotation sensing magnet; 1922. second rotation sensing magnet; 193. pitch sensing element; 101. first magnetic conductive member; 1011. first magnetic conductive part; 1012. second magnetic conductive part; 1013. third magnetic conductive part; 1014. fourth reinforcing part; 102. second magnetic conductive member; C1. first rotation axis; C2. second rotation axis; OA1. first optical axis; OA2. second optical axis; OA3. third axis. DETAILED DESCRIPTION

[0037] The present invention is further described below in conjunction with specific implementation methods. It should be noted that, under the premise of no conflict, the various embodiments or technical features described below can be arbitrarily combined to form a new embodiment.

[0038] In the description of the present invention, it should be noted that directional words, such as the terms "center", "lateral", "longitudinal", "length", "width", "thickness", "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inside", "outside", "clockwise", "counterclockwise", etc., indicating directions and positional relationships are based on the directions or positional relationships shown in the accompanying drawings, which are only for the convenience of narrating the present invention and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific direction, be constructed and operated in a specific direction, and cannot be understood as limiting the specific scope of protection of the present invention.

[0039] It should be noted that the terms "first", "second", etc. in the description and claims of the present application are used to distinguish similar objects, and are not necessarily used to describe a specific order or sequence.

[0040] The terms "including" and "having" and any variations thereof in the specification and claims of this application are intended to cover non-exclusive inclusions. For example, a process, method, system, product or apparatus comprising a series of steps or units is not necessarily limited to those steps or units explicitly listed, but may include other steps or units not explicitly listed or inherent to these processes, methods, products or apparatuses.

[0041] In the description of the present invention, it is also necessary to explain that, unless otherwise clearly specified and limited, the terms "set", "install", "connect", and "connect" should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection, a contact connection, or an indirect connection through an intermediate medium, and it can be the internal communication of two elements. For ordinary technicians in this field, the specific meanings of the above terms in the present invention can be understood according to specific circumstances.

[0042] For ease of description, the reflective module 10 and the periscope camera module are defined to extend along the mutually perpendicular first optical axis OA1, second optical axis OA2 and third axis OA3. The width of the periscope camera module is defined along the third axis OA3, the length of the periscope camera module is defined along the second optical axis OA2, and the height (thickness) of the periscope camera module is defined along the first optical axis OA1.

[0043] A reflection module 10, such as Figures 1 to 12As shown, it includes: an optical path turning element 11, used for reflecting the light incident along the first optical axis OA1 to be emitted along the second optical axis OA2; a rotating frame 13, coupled to the optical path turning element 11, and supporting the optical path turning element 11 to rotate around the first rotation axis C1, wherein the first rotation axis C1 is parallel to the second optical axis OA2 and is not colinear with the second optical axis OA2; a base 14, used for accommodating the rotating frame 13; a rotation driving unit 17, configured to drive the rotating frame 13 to rotate around the first rotation axis C1 relative to the base 14; The rotating support part 15 is crimped between the rotating frame 13 and the base 14 along a direction parallel to the first optical axis OA1, and maintains frictional contact with at least one of the rotating frame 13 and the base 14; the rotating support part 15 includes a rotating guide shaft 151 and a rotating support member 152 arranged at intervals along a direction parallel to the first rotating axis C1, and the first rotating axis C1 passes through the center of the rotating guide shaft 151 and the center of the rotating support member 152, wherein the rotating guide shaft 151 extends along a direction parallel to the first rotating axis C1.

[0044] It should be understood that when the camera is shaken unintentionally (for example, due to hand shaking of the user), the image formed on the image sensor may be unstable. In this case, according to an exemplary embodiment, the periscope camera module can implement a function for correcting the unstable image (i.e., optical image stabilization, hereinafter referred to as "optical image stabilization"). In some embodiments, the periscope camera module can implement the optical image stabilization function by driving the reflection module 10.

[0045] In some embodiments, the optical image stabilization function can be achieved by rotating the reflection module 10. For example, when the periscope camera module shakes, the reflection module 10 can be rotated within a predetermined range to optically stabilize the unstable image. Here, the reflection module 10 can rotate around one or more axes. For example, when the optical axis is parallel to the second optical axis OA2, the reflection module 10 can rotate around the first rotation axis C1 parallel to the second optical axis OA2; the reflection module 10 can swing around the third rotation axis parallel to the first optical axis OA1; the reflection module 10 can pitch around the second rotation axis C2 parallel to the third axis OA3, wherein the first optical axis OA1, the second optical axis OA2 and the third axis OA3 are perpendicular to each other. Specifically, the wording "swing" can indicate the left-right swinging movement of the reflection module 10, the wording "pitch" can indicate the up-and-down pitching movement of the reflection module 10, and the wording "rotation" can indicate the rotational movement of the reflection module 10 parallel to the imaging surface of the image sensor. However, the unstable images of the periscope camera module are mostly caused by the rotational jitter parallel to the imaging plane of the image sensor caused by the user's hand shaking. Therefore, compensation for the rotational jitter is more important for the periscope camera module.

[0046] If the driving rotating frame 13 carries the optical path turning element 11 and drives the optical path turning element 11 to only realize the swinging motion around the third rotation axis parallel to the first optical axis OA1, since the imaging surface of the image sensor is parallel to the plane where the first optical axis OA1 and the third axis OA3 are located, and the plane where the aperture is located is also parallel to the plane where the first optical axis OA1 and the third axis OA3 are located, after the optical path turning element 11 swings around the third rotation axis, part of the imaging information will be lost when the imaging surface of the image sensor is projected onto the plane where the first optical axis OA1 and the third axis OA3 are located, and part of the light participating in the imaging will also be blocked at the aperture, so that the MTF axis value of the optical path turning element 11 during the rotational motion around the third rotation axis is smaller than the MTF axis value when the object distance is infinite (INF state), that is, the swinging motion of the optical path turning element 11 around the third rotation axis parallel to the first optical axis OA1 will cause the performance of the periscope camera module to decrease, thereby affecting the final imaging quality.

[0047] In the present application, the rotating frame 13 is able to carry the optical path turning element 11 and drive the optical path turning element 11 to rotate around the first rotation axis C1 parallel to the second optical axis OA2, so that the image on the imaging surface of the image sensor can produce the effect of rotating around the first rotation axis C1, thereby compensating for the rotational jitter of the periscope camera module during use, reducing the phase difference and improving the imaging quality. Specifically, since the imaging surface of the image sensor is parallel to the plane where the first optical axis OA1 and the third axis OA3 are located, and the plane where the aperture is located is also parallel to the plane where the first optical axis OA1 and the third axis OA3 are located, after the optical path turning element 11 rotates around the first rotation axis C1, the size of the image plane when the imaging surface of the image sensor is projected onto the plane where the first optical axis OA1 and the third axis OA3 are located will not change, the image plane information will still be complete, and the light participating in the imaging will not be lost at the aperture. In this way, the MTF axis value when the optical path turning element 11 rotates around the first rotation axis C1 can be consistent with the MTF axis value when the object distance is infinite (INF state), that is, the rotation of the optical path turning element 11 around the first rotation axis C1 can completely maintain the same image quality without performance degradation. In other words, the rotation of the optical path turning element 11 around the first rotation axis C1 only involves the rotation of the image plane angle, and there is no offset in the image plane height position, so it does not affect the MTF axis value. Among them, MTF is called modulation transfer function, which is a visual expression of accurate and quantitative evaluation of the resolution of the lens.

[0048] It is worth mentioning that because the aperture of the periscope camera module is smaller, the jitter during night scene or video shooting will make the imaging effect worse. The rotation frame 13 carries the optical path turning element 11 to rotate around the first rotation axis C1, which is also conducive to correcting the rotation jitter generated by the periscope camera module in low light environment and video shooting, thereby improving the performance of night scene shooting and video shooting of the device, thereby meeting a wider range of usage needs.

[0049] In some embodiments, the optical path turning element 11 turns the light incident along the first optical axis OA1 into the light emitted along the second optical axis OA2. The optical path turning element 11 can be a reflector or a prism for turning the light path. For ease of description, the embodiment of the present application takes the optical path turning element 11 as a reflector as an example.

[0050] The optical path deflection element 11 includes a reflective surface and a mounting surface, the mounting surface is coupled to the rotating frame 13 to support the optical path deflection element 11 through the rotating frame 13, and the reflective surface extends at a certain angle relative to the first optical axis OA1 and the second optical axis OA2. After the light incident along the first optical axis OA1 reaches the reflective surface, the light path is deflected by the reflective surface, so that the light is emitted along the second optical axis OA2.

[0051] As mentioned above, in the present application, the reflection module 10 rotates around the first rotation axis C1 parallel to the second optical axis OA2 and around the second rotation axis C2 parallel to the third axis OA3, and the posture of the reflection module 10 is corrected in the direction of the first rotation axis C1 and the second rotation axis C2, respectively, so as to compensate for the jitter of the periscope camera module in two directions. Furthermore, the rotational movement of the reflection module 10 around the first rotation axis C1 combined with the pitching movement of the reflection module 10 around the second rotation axis C2 is conducive to making the jitter compensation of the periscope camera module more omnidirectional, thereby better compensating for the image blur caused by the rotation of the device or the hand shake of the user, and producing a higher quality image. Among them, the first rotation axis C1 is parallel to the second optical axis OA2, and the first rotation axis C1 is not collinear with the second optical axis OA2; the second rotation axis C2 is parallel to the third axis OA3, and in some embodiments, the second rotation axis C2 is not collinear with the third axis OA3; in other embodiments, the second rotation axis C2 is collinear with the third axis OA3. Furthermore, the reflection module 10 performs a rotational motion around the first rotation axis C1 , and the reflection module 10 performs a pitching motion around the second rotation axis C2 .

[0052] like Figures 4 to 6As shown, in some embodiments, the rotating support part 15 is pressed between the rotating frame 13 and the base 14 along a direction parallel to the first optical axis OA1, and maintains frictional contact with at least one of the rotating frame 13 and the base 14 to support the rotating frame 13 to rotate around the first rotation axis C1 in the base 14. Specifically, the rotating support part 15 is pressed between the bottom of the rotating frame 13 and the upper part of the base 14. Compared with the direct contact between the rotating frame 13 and the base 14, the rotating support part 15 is pressed between the rotating frame 13 and the base 14, so that the rotating support part 15 can support the rotating frame 13 along a direction parallel to the first optical axis OA1, so as to reduce the contact area between the rotating frame 13, the rotating support part 15 and the base 14, thereby facilitating the reduction of friction, so that the rotating frame 13 can rotate around the first rotation axis C1 more smoothly, and also facilitating the reduction of the power consumption required for the rotating frame 13 to rotate.

[0053] In some embodiments, the rotation support portion 15 includes a rotation guide shaft 151 and a rotation support member 152 that are spaced apart along the second optical axis OA2 direction, wherein the first rotation axis C1 passes through the center of the rotation guide shaft 151 and the center of the rotation support member 152. In this way, the rotation guide shaft 151 and the rotation support member 152 can be aligned in a direction parallel to the first rotation axis C1, so that the rotation frame 13 can rotate around the first rotation axis C1, thereby improving the rotation accuracy of the rotation frame 13.

[0054] Specifically, the rotation guide shaft 151 extends in a direction parallel to the first rotation axis C1. In other words, the projection of the rotation guide shaft 151 in a direction parallel to the first optical axis OA1 has an edge parallel to the first rotation axis C1. In this way, when the rotating frame 13 is driven to rotate around the first rotation axis C1, the rotation direction of the rotating frame 13 is limited by the rotation guide shaft 151 to only be able to rotate around the first rotation axis C1 without the interference of the swinging motion, so as to improve the rotation accuracy of the reflection module 10.

[0055] More specifically, the rotation guide shaft 151 has a length extending in a direction parallel to the first rotation axis C1, so that the rotation guide shaft 151 and at least one of the rotation frame 13 and the base 14 have a friction contact line extending in a direction parallel to the first rotation axis C1. Furthermore, a plurality of friction contact lines extending in a direction parallel to the first rotation axis C1 may constitute a friction contact surface extending in a direction parallel to the first rotation axis C1. In other words, the rotation guide shaft 151 and at least one of the rotation frame 13 and the base 14 are in surface friction contact or line friction contact.

[0056] Further, the rotation guide shaft 151 is an axisymmetric shape, and the symmetry axis of the rotation guide shaft 151 coincides with the first rotation axis C1, that is, the rotation guide shaft 151 is an axisymmetric structure relative to the first rotation axis C1. For example, the rotation guide shaft 151 can be implemented as a cylinder or a part of a cylinder. Further, the rotation support member 152 is a rotationally symmetric shape, and the rotation support member 152 has a rotationally symmetric axis parallel to the first optical axis OA1, that is, the rotation support member 152 is a rotationally symmetric structure relative to the rotationally symmetric axis. For example, the rotation support member 152 can be implemented as a sphere or a part of a sphere.

[0057] It should be understood that if there is only point friction contact between the rotating frame 13 and the rotating guide shaft 151, the point friction contact cannot limit the rotation direction of the rotating frame 13. Therefore, when the rotating frame 13 is driven to rotate around the first rotation axis C1, the rotating frame 13 may have a swinging motion tendency around the third rotation axis, which makes the rotational motion of the rotating frame 13 interfere with the swinging motion, affecting the rotation accuracy of the reflection module 10.

[0058] In the present application, the rotating guide shaft 151 has a length extending in a direction parallel to the first rotating axis C1, so that the rotating guide shaft 151 and at least one of the rotating frame 13 and the base 14 have a friction contact line extending in a direction parallel to the first rotating axis C1, and then the rotating direction of the rotating frame 13 is limited by the rotating guide shaft 151 to only be able to rotate around the first rotating axis C1 without the interference of swinging motion, so as to improve the anti-shake accuracy of the reflection module 10.

[0059] In some embodiments, the rotation guide shaft 151 has a first central axis, and the first central axis passes through the center of the rotation guide shaft 151. The rotation support 152 has a second central axis, and the second central axis passes through the center of the rotation support 152. The first central axis, the second central axis and the first rotation axis C1 coincide with each other. In other words, the first rotation axis C1 passes through the center of the rotation guide shaft 151 and the center of the rotation support 152.

[0060] In some embodiments, the rotation guide shaft 151 has a first height extending in a direction parallel to the first optical axis OA1, and the rotation support member 152 has a second height extending in a direction parallel to the first optical axis OA1. The first height is equal to the second height, so that the rotation guide shaft 151 and the rotation support member 152 can stably support the rotating frame 13 to reduce the risk of the rotating frame 13 tilting.

[0061] It should be understood that the rotating support member 152 can have the same structure as the rotating guide shaft 151, or can have a different structure. In the present application, the rotating support member 152 extends in a direction parallel to the first optical axis OA1, and has a friction contact point with at least one of the rotating frame 13 and the base 14. Furthermore, multiple friction contact points can form a friction contact line. In other words, the rotating support member 152 is in point friction contact or line friction contact with at least one of the rotating frame 13 and the base 14. Since the friction force generated by surface friction is greater than the friction force generated by line friction, and the friction force generated by line friction is greater than the friction force generated by point friction, therefore, in the present application, the friction force between the rotating frame 13, the rotating support part 15 and the base 14 can be reduced by the rotating support member 152, thereby reducing the power consumption required to drive the rotating frame 13 to rotate around the first rotation axis C1.

[0062] Furthermore, the material of the rotating guide shaft 151 and the rotating support member 152 can be the same as the material of the rotating frame 13 or the base 14, such as resin, and the rotating guide shaft 151 and the rotating support member 152 are integrally formed during the injection molding process of the rotating frame 13 or the base 14. Of course, the materials of the rotating guide shaft 151 and the rotating support member 152 can also be different materials, such as metal, and the rotating guide shaft 151 and the rotating support member 152 are embedded in the rotating frame 13 or the base 14 and integrally formed through the insert injection molding process.

[0063] like Figure 1 , Figure 3 and Figure 5 As shown, in some embodiments, the rotation guide shaft 151 is implemented as a convex shaft 1511, which extends in a direction parallel to the first rotation axis C1, so that the convex shaft 1511 has a length extending in a direction parallel to the first rotation axis C1. The rotation support member 152 is implemented as a boss 1521, which extends in a direction parallel to the first optical axis OA1. The convex shaft 1511 and the boss 1521 protrude from one of the rotating frame 13 and the base 14 in a direction parallel to the first optical axis OA1. Further, the other of the rotating frame 13 and the base 14 is provided with a guide rail 141 and a guide groove 142, so that the convex shaft 1511 is disposed in the guide rail 141, and the boss 1521 is disposed in the guide groove 142. In this way, the convex shaft 1511 is in frictional contact with the surface of the guide rail 141 along a direction parallel to the first optical axis OA1; the boss 1521 is in frictional contact with the surface of the guide groove 142 along a direction parallel to the first optical axis OA1.

[0064] Specifically, the convex shaft 1511 has a first plane 15111 extending in parallel with the plane where the second optical axis OA2 and the third axis OA3 are located, and a first arc surface 15112 protruding from the first plane 15111 in a direction parallel to the first optical axis OA1, wherein the first plane 15111 is integrally connected with the surface of the rotating frame 13 facing the base 14. The surface of the base 14 facing the rotating frame 13 has a guide rail 141, and the guide rail 141 extends in a direction parallel to the first rotation axis C1. The first arc surface 15112 of the convex shaft 1511 is in frictional contact with the inner surface of the guide rail 141, so as to limit the rotation direction of the rotating frame 13 through the convex shaft 1511 and the guide rail 141, that is, when the rotating frame 13 is driven to rotate around the first rotation axis C1, the rotation direction of the rotating frame 13 is limited by the convex shaft 1511 to only be able to rotate around the first rotation axis C1, without the interference of the swinging motion, so as to improve the rotation motion accuracy of the reflection module 10.

[0065] More specifically, the boss 1521 has a second plane 15211 extending in parallel with the plane where the second optical axis OA2 and the third axis OA3 are located, and a second arc surface 15212 protruding from the surface of the second plane 15211 in a direction parallel to the first optical axis OA1, wherein the second plane 15211 is integrally connected to the surface of the rotating frame 13 facing the base 14. The surface of the base 14 facing the rotating frame 13 has a guide groove 142, and the second arc surface 15212 of the boss 1521 is in frictional contact with the inner surface of the guide groove 142 to reduce the friction between the rotating frame 13, the rotating support portion 15 and the base 14.

[0066] In some embodiments, the first central axis passes through the center of the protruding shaft 1511 on the first plane 15111, and the second central axis passes through the center of the boss 1521 on the second plane 15211. The first central axis coincides with the second central axis and forms a first rotation axis C1. In other words, the first rotation axis C1 passes through the center of the protruding shaft 1511 and the center of the boss 1521.

[0067] Of course, the convex shaft 1511 and the boss 1521 can also be set to protrude from the surface of the base 14 facing the rotating frame 13 in a direction parallel to the first optical axis OA1, and the surface of the rotating frame 13 facing the base 14 is correspondingly provided with a guide rail 141 and a guide groove 142, the convex shaft 1511 is arranged in the guide rail 141 and is in frictional contact with the surface of the guide rail 141, and the boss 1521 is arranged in the guide groove 142 and is in frictional contact with the surface of the guide groove 142. Further, by controlling the processing accuracy of the convex shaft 1511, the boss 1521, the guide rail 141 and the guide groove 142, it is beneficial to improve the assembly accuracy of the reflection module 10, and it is also beneficial to improve the controllability and reliability of the rotational movement of the rotating frame 13. Furthermore, the cooperation of the convex shaft 1511 and the boss 1521 can also reduce the assembly tolerance of the rotating frame 13, the rotating support part 15 and the base 14, and reduce the difficulty of assembly.

[0068] like Figure 6 As shown, in some embodiments, the rotation guide shaft 151 is implemented as a roller 1512 , which extends in a direction parallel to the first rotation axis C1 so that the roller 1512 has a length extending in a direction parallel to the first rotation axis C1 , and the rotation support member 152 is implemented as a ball 1522 . The roller 1512 and the ball 1522 are crimped between the rotating frame 13 and the base 14 along a direction parallel to the first optical axis OA1. Further, the surface of the rotating frame 13 facing the base 14 has a first upper guide rail 1323 and a first upper guide groove 1324, and the surface of the base 14 facing the rotating frame 13 is correspondingly provided with a first lower guide rail 1411 and a first lower guide groove 1421. The first upper guide rail 1323 and the first lower guide rail 1411 are relatively arranged in a direction parallel to the first optical axis OA1, and the first upper guide groove 1324 and the first lower guide groove 1421 are relatively arranged in a direction parallel to the first optical axis OA1. The roller 1512 is movably clamped between the first upper guide rail 1323 and the first lower guide rail 1411, and the roller 1512 is movably clamped between the first upper guide groove 1324 and the first lower guide groove 1421.

[0069] Specifically, the roller 1512 has a first arc surface, the first upper guide rail 1323 and the first lower guide rail 1411 extend in a direction parallel to the first rotation axis C1, and the first arc surface is in frictional contact with the inner surface of the first upper guide rail 1323 and the inner surface of the first lower guide rail 1411. In this way, the rotation direction of the rotating frame 13 can be limited by the roller 1512, the first upper guide rail 1323 and the first lower guide rail 1411 to only be able to rotate around the first rotation axis C1, without the interference of the swing rotation, thereby improving the anti-shake accuracy of the reflection module 10.

[0070] The ball 1522 has a second arc surface, which is in frictional contact with the inner surface of the first upper guide groove 1324 and the inner surface of the first lower guide groove 1421. In this way, not only the friction force is reduced, but also the assembly tolerance of the rotating frame 13, the rotating support part 15 and the base 14 is reduced, and the assembly difficulty is reduced.

[0071] Of course, in some embodiments, the rotation guide shaft 151 is implemented as a convex shaft 1511, and the rotation support member 152 is implemented as a ball 1522; or, the rotation guide shaft 151 is implemented as a roller 1512, and the rotation support member 152 is implemented as a boss 1521, and the present application does not impose any limitation on this.

[0072] Furthermore, the above-mentioned cam shaft 1511 and roller 1512 can be implemented as cylindrical, semi-cylindrical, etc., the above-mentioned boss 1521 and ball 1522 can be implemented as spherical, hemispherical, etc., and the above-mentioned guide rail 141 and guide groove 142 can be implemented as grooves in the shape of a quadrangular pyramid, cylinder, hemispherical, rectangle, etc., respectively, and the present application does not make any specific restrictions on this.

[0073] like Figure 3 , Figure 4 and Figure 7 As shown, in some embodiments, the rotation driving unit 17 includes at least one rotating magnet 171 and at least one rotating coil 172, and the at least one rotating magnet 171 and the at least one rotating coil 172 are arranged opposite to each other in a direction parallel to the first optical axis OA1, and the at least one rotating magnet 171 and the at least one rotating coil 172 interact with each other to drive the rotating frame 13 to rotate around the first rotating axis C1 relative to the base 14. Among them, the at least one rotating magnet 171 is arranged on one of the rotating frame 13 and the base 14, and the at least one rotating coil 172 is arranged on the other of the rotating frame 13 and the base 14.

[0074] Furthermore, the surface of the rotating frame 13 facing the base 14 has a magnet groove, and at least one rotating magnet 171 is disposed in the magnet groove of the rotating frame 13. Correspondingly, the surface of the base 14 facing the rotating frame 13 has a coil groove, and at least one rotating coil 172 is disposed in the coil groove. In this way, the structure of the reflection module 10 can be made more compact, and the height of the reflection module 10 can be avoided from being increased.

[0075] Specifically, at least one rotating magnet 171 includes a first rotating magnet 1711 and a second rotating magnet 1712 spaced apart in a direction parallel to the third axis OA3, and at least one rotating coil 172 includes a first rotating coil 1721 and a second rotating coil 1722 spaced apart in a direction parallel to the third axis OA3, wherein the first rotating magnet 1711 and the first rotating coil 1721 are arranged opposite to each other in a direction parallel to the first optical axis OA1, and the second rotating magnet 1712 and the second rotating coil 1722 are arranged opposite to each other in a direction parallel to the first optical axis OA1. When the first rotating coil 1721 and the second rotating coil 1722 are energized, the first rotating magnet 1711 and the first rotating coil 1721 interact with each other, and the second rotating magnet 1712 and the second rotating coil 1722 interact with each other, so as to drive the rotating frame 13 to rotate around the first rotating axis C1.

[0076] In some embodiments, the rotating magnet 171 and the rotating support part 15 are located on the same side of the rotating frame 13, for example, the rotating magnet 171 and the rotating support part 15 are located at the bottom of the rotating frame 13. Further, the first rotating magnet 1711, the second rotating magnet 1712 and the rotating support part 15 are located at the bottom of the rotating frame 13, and the first rotating magnet 1711 and the second rotating magnet 1712 are located on both sides of the rotating support part 15 along a direction parallel to the third axis OA3. In this way, when the first rotating magnet 1711 and the second rotating magnet 1712 generate a driving force, the driving force acts on both sides of the rotating support part 15 to provide a stable support through the rotating support part 15, so that the rotating frame 13 can rotate around the first rotating axis C1 provided by the rotating support part 15.

[0077] The first rotating magnet 1711 and the second rotating magnet 1712 include a first magnetic region and a second magnetic region arranged in a direction parallel to the first optical axis OA1, wherein the magnetic poles of the first magnetic region and the second magnetic region are opposite, for example, the first magnetic region is an N pole and the second magnetic region is an S pole. The magnetic poles of the first rotating magnet 1711 and the second rotating magnet 1712 are symmetrically arranged relative to the direction parallel to the second optical axis OA2, for example, the first magnetic region and the second magnetic region of the first rotating magnet 1711 are stacked in a direction parallel to the first optical axis OA1, and the first magnetic region and the second magnetic region of the second rotating magnet 1712 are stacked in a direction parallel to the first optical axis OA1. The side of the first rotating magnet 1711 facing the first rotating coil 1721 is the first magnetic region, the side of the first rotating magnet 1711 away from the first rotating coil 1721 is the second magnetic region, the side of the second rotating magnet 1712 facing the second rotating coil 1722 is the first magnetic region, and the side of the second rotating magnet 1712 away from the second rotating coil 1722 is the second magnetic region. Furthermore, through the cooperation between the first rotating magnet 1711 and the first rotating coil 1721, and the cooperation between the second rotating magnet 1712 and the second rotating coil 1722, the rotating frame 13 can be driven to rotate around the first rotating axis C1 relative to the base 14 more reliably and stably. It is worth mentioning that the rotating magnet 171 also includes a neutral area located between the first magnetic area and the second magnetic area.

[0078] Further, the first rotating magnet 1711 and the second rotating magnet 1712 may also be multi-pole magnets, that is, the first rotating magnet 1711 and the second rotating magnet 1712 include a plurality of first magnetic regions and a plurality of second magnetic regions. For example, the side of the first rotating magnet 1711 facing the first rotating coil 1721 is the first magnetic region and the second magnetic region arranged in a direction parallel to the second optical axis OA2, and the side of the first rotating magnet 1711 away from the first rotating coil 1721 is the second magnetic region and the first magnetic region arranged in a direction parallel to the second optical axis OA2, wherein the first magnetic region of the side of the first rotating magnet 1711 facing the first rotating coil 1721 is opposite to the second magnetic region of the side of the first rotating magnet 1711 away from the first rotating coil 1721, and the second magnetic region of the side of the first rotating magnet 1711 facing the first rotating coil 1721 is opposite to the first magnetic region of the side of the first rotating magnet 1711 away from the first rotating coil 1721. The side of the second rotating magnet 1712 facing the second rotating coil 1722 is a first magnetic area and a second magnetic area arranged in a direction parallel to the second optical axis OA2, and the side of the second rotating magnet 1712 away from the second rotating coil 1722 is a second magnetic area and a first magnetic area arranged in a direction parallel to the second optical axis OA2, wherein the first magnetic area of ​​the side of the second rotating magnet 1712 facing the second rotating coil 1722 is opposite to the second magnetic area of ​​the side of the second rotating magnet 1712 away from the second rotating coil 1722, and the second magnetic area of ​​the side of the second rotating magnet 1712 facing the second rotating coil 1722 is opposite to the first magnetic area of ​​the side of the second rotating magnet 1712 away from the second rotating coil 1722. When the first rotating magnet 1711 and the second rotating magnet 1712 are multi-pole magnets, it is beneficial to improve the magnetic field strength of the rotating magnet 171 and provide a driving force for the rotation of the reflection module 10.

[0079] It should be understood that, viewed from the direction parallel to the second optical axis OA2, during the process of the rotating frame 13 rotating around the first rotating axis C1, the change in the distance between the first rotating magnet 1711 and the first rotating coil 1721 is opposite to the change in the distance between the second rotating magnet 1712 and the second rotating coil 1722. Specifically, when the rotating frame 13 rotates clockwise around the first rotating axis C1, the distance between the first rotating magnet 1711 and the first rotating coil 1721 increases, and the distance between the second rotating magnet 1712 and the second rotating coil 1722 decreases. When the rotating frame 13 rotates counterclockwise around the first rotating axis C1, the distance between the first rotating magnet 1711 and the first rotating coil 1721 decreases, and the distance between the second rotating magnet 1712 and the second rotating coil 1722 increases.

[0080] In some embodiments, the rotating magnet 171 adopts high-performance permanent magnet materials, including but not limited to: neodymium iron boron permanent magnet materials, ferrite permanent magnet materials, etc., so that the rotating magnet 171 has a higher magnetic energy product and coercive force, so that the rotating magnet 171 can have a smaller volume while ensuring that the rotating magnet 171 has a stronger magnetic force, which is beneficial to increase the driving force between the rotating magnet 171 and the rotating coil 172, and make the structure of the reflection module 10 more compact, which is beneficial to reduce the overall size of the reflection module 10.

[0081] like Figure 3 , Figure 4 and Figure 8 As shown, in some embodiments, the reflection module 10 further includes a movable carrier 12, a pitch support portion 16 and a pitch drive portion 18, wherein the optical path turning element 11, the movable carrier 12, the pitch support portion 16, the rotating frame 13, the rotating support portion 15 and the base 14 are sequentially arranged along a direction parallel to the first optical axis OA1. Specifically, the movable carrier 12 is movably arranged on the rotating frame 13, and the movable carrier 12 can drive the optical path turning element 11 to perform a pitch motion relative to the rotating frame 13 around the second rotation axis C2, and the rotating frame 13 can drive the movable carrier 12 and the optical path turning element 11 to perform a rotational motion relative to the base 14 around the first rotation axis C1. The pitch support portion 16 is crimped between the movable carrier 12 and the rotating frame 13, and the second rotation axis C2 passes through the center of the pitch support portion 16, and the second rotation axis C2 is parallel to the third axis OA3, and the pitch drive portion 18 is configured to drive the movable carrier 12 to drive the optical path turning element 11 to perform a pitch motion around the second rotation axis C2. It should be understood that along the direction parallel to the first optical axis OA1, when the height of the center of the pitch support part 16 is aligned with the height of the center of the optical path turning element 11, the second rotation axis C2 is parallel to the third axis OA3 and colinear with the third axis OA3, so as to improve the rotation accuracy of the movable carrier 12 around the second rotation axis C2.

[0082] Of course, in some embodiments, along the direction parallel to the first optical axis OA1, when the height at which the center of the pitch support portion 16 is located is not aligned with the height at which the center of the optical path turning element 11 is located, the second rotation axis C2 is parallel to the third axis OA3 and is not colinear with the third axis OA3, so as to simplify the structure of the reflection module 10 and facilitate manufacturing.

[0083] Specifically, the movable carrier 12 includes a carrier body 121 and a carrier side wall 122 that are integrally connected, wherein the carrier body 121 includes a bearing portion 1213, a carrier back 1211, and a carrier bottom 1212, the bearing portion 1213 extends at a certain angle relative to the first optical axis OA1 and the second optical axis OA2, and the mounting surface of the optical path turning element 11 is fixed to the bearing portion 1213 to place the optical path turning element 11 on the movable carrier 12. The carrier back 1211 is located in a plane perpendicular to the second optical axis OA2, the carrier bottom 1212 is located in a plane perpendicular to the first optical axis OA1, and the plane where the carrier back 1211 is located is perpendicular to the plane where the carrier bottom 1212 is located. The carrier side wall 122 includes a first carrier side wall 1221 and a second carrier side wall 1222 that are spaced apart in a direction parallel to the third axis OA3, and the first carrier side wall 1221 and the second carrier side wall 1222 are connected to the carrier back 1211 and the carrier bottom 1212, respectively. Further, the first carrier side wall 1221 and the second carrier side wall 1222 respectively have a first recess 12211 and a second recess 12221 that are recessed inwardly from the carrier bottom 1212 along the first optical axis OA1 direction. It should be understood that the carrier back 1211 is located at the back of the movable carrier 12, that is, the side away from the optical path turning element 11 along the direction parallel to the second optical axis OA2; the carrier bottom 1212 is located at the bottom of the movable carrier 12, that is, the side away from the optical path turning element 11 along the direction parallel to the first optical axis OA1.

[0084] The rotating frame 13 includes a frame body 131 and a support arm 132 extending from the frame body 131 in a first direction, the support arm 132 includes a first support arm 1321 and a second support arm 1322, wherein the first support arm 1321 and the second support arm 1322 are spaced apart along the third axis OA3. It should be understood that the frame body 131 extends in a plane where the second optical axis OA2 and the third axis OA3 are located, and the first support arm 1321 and the second support arm 1322 are formed to be protruding relative to the frame body 131.

[0085] Further, the first support arm 1321 corresponds to the first recess 12211 and extends into the first recess 12211, and the second support arm 1322 corresponds to the second recess 12221 and extends into the second recess 12221. The pitch support part 16 is clamped between the first support arm 1321 and the first recess 12211 and between the second support arm 1322 and the second recess 12221, that is, the first pitch support member 161 is clamped between the first support arm 1321 and the first recess 12211, and the second pitch support member 162 is clamped between the second support arm 1322 and the second recess 12221, so as to support the rotation of the movable carrier 12 relative to the rotating frame 13 around the second rotation axis C2.

[0086] The pitch support part 16 includes a first pitch support member 161 and a second pitch support member 162 arranged in a direction parallel to the third axis OA3, the first pitch support member 161 is clamped between the first support arm 1321 and the first recess 12211 to maintain frictional contact with the first support arm 1321 and the first recess 12211; the second pitch support member 162 is clamped between the second support arm 1322 and the second recess 12221 to maintain frictional contact with the second support arm 1322 and the second recess 12221. An imaginary line extending from the second rotation axis C2 passes through the first pitch support member 161 and the second pitch support member 162, so that the first pitch support member 161 and the second pitch support member 162 support the movable carrier 12 to perform a pitch motion around the second rotation axis C2. The second rotation axis C2 is parallel to the third axis OA3.

[0087] In some embodiments, the first pitch support member 161 and the second pitch support member 162 are implemented as a first pitch ball 1611 and a second pitch ball 1621. Fig. 9 As shown, the first recess 12211 has a first upper groove 122111, the first support arm 1321 has a first lower groove 13211, the first upper groove 122111 and the first lower groove 13211 are relatively arranged along the direction of the first optical axis OA1, and the first pitch ball 1611 can be rolled between the first upper groove 122111 and the first lower groove 13211; the second recess 12221 has a second upper groove 122211, the second support arm 1322 has a second lower groove 13221, the second upper groove 122211 and the second lower groove 13221 are relatively arranged along the direction parallel to the first optical axis OA1, and the second pitch ball 1621 can be rolled between the second upper groove 122211 and the second lower groove 13221.

[0088] In some embodiments, the first pitch support member 161 and the second pitch support member 162 are implemented as a first pitch protrusion and a second pitch protrusion. Further, the first pitch protrusion and the second pitch protrusion protrude from one of the movable carrier 12 and the rotating frame 13 in a direction parallel to the first optical axis OA1, and the other of the movable carrier 12 and the rotating frame 13 is provided with a slide groove, and the first pitch protrusion and the second pitch protrusion maintain frictional contact with the inner surface of the slide groove. The first pitch protrusion is pressed between the first recess 12211 of the movable carrier 12 and the first support arm 1321 of the rotating frame 13, and the second pitch protrusion is pressed between the second recess 12221 of the movable carrier 12 and the second support arm 1322 of the rotating frame 13.

[0089] Of course, in some embodiments, the first pitch support member 161 is implemented as a pitch ball 1522, and the second pitch support member 162 is implemented as a pitch bump; or, the first pitch support member 161 is implemented as a pitch bump, and the second pitch support member 162 is implemented as a pitch ball 1522, and the present application does not impose any limitation on this.

[0090] In some embodiments, in combination Fig.10 As shown, viewed along the direction of the first optical axis OA1, the first pitch support member 161 and the second pitch support member 162 are respectively located on both sides of the rotating guide shaft 151 and the second rotating support member 15, that is, the projections of the rotating guide shaft 151 and the rotating support member 152 along the direction of the first optical axis OA1 fall between the projections of the first pitch support member 161 and the second pitch support member 162 along the direction of the first optical axis OA1, so as to prevent the movable carrier 12 and the rotating frame 13 from being tilted due to the biased supporting force.

[0091] Furthermore, an imaginary line connecting the first pitch support member 161 and the second pitch support member 162 projected in a direction parallel to the first optical axis OA1 is perpendicular to an imaginary line connecting the rotation guide shaft 151 and the rotation support member 152 projected in a direction parallel to the first optical axis OA1. In this way, the movement of the rotating frame 13 and the movable carrier 12 can be decomposed into rotations around two mutually perpendicular first rotation axes C1 and second rotation axes C2, reducing the movement component of the rotating frame 13 and the movable carrier 12 on the third rotation axis, thereby improving the driving accuracy of the rotation and pitch movements of the rotating frame 13 and the movable carrier 12, and reducing the risk of the rotating frame 13 and the movable carrier 12 tilting.

[0092] In some embodiments, the pitch support part 16 and the pitch drive part 18 are located on different sides of the movable carrier 12, wherein the pitch support part 16 is arranged at the bottom of the movable carrier 12, and the pitch drive part 18 is arranged at the back of the movable carrier 12, so that the structure of the reflection module 10 is more compact and the space arrangement is more reasonable.

[0093] like Figure 5 , Figure 6 , Figure 8 and Fig.11As shown, in some embodiments, the pitch driving unit 18 includes at least one pitch magnet 181 and at least one pitch coil 182, and the at least one pitch magnet 181 and the at least one pitch coil 182 are arranged opposite to each other in a direction parallel to the second optical axis OA2. Among them, at least one pitch magnet 181 is arranged on the carrier back 1211 of the movable carrier 12, and extends in a direction parallel to the third axis OA3 and in a direction parallel to the first optical axis OA1 on the carrier back 1211, and at least one pitch coil 182 is arranged on the surface of the base 14 facing the movable carrier 12, and extends in a direction parallel to the third axis OA3 and in a direction parallel to the first optical axis OA1 on the surface of the base 14 facing the movable carrier 12. The at least one pitch coil 182 and the at least one pitch magnet 181 interact with each other to drive the movable carrier 12 to perform a pitch motion around the second rotation axis C2.

[0094] In some embodiments, at least one pitch magnet 181 is disposed on the back of the movable carrier 12, and at least one rotating magnet 171 is disposed on the bottom of the rotating frame 13, that is, at least one pitch magnet 181 and at least one rotating magnet 171 are disposed on opposite sides to avoid magnetic interference.

[0095] The pitch magnet 181 may be a multi-pole magnet, that is, the pitch magnet 181 includes a plurality of third magnetic regions and a fourth magnetic region, wherein the third magnetic region and the fourth magnetic region have opposite magnetic poles, for example, the third magnetic region is an N pole, and the fourth magnetic region is an S pole. The side of the pitch magnet 181 facing the pitch coil 182 is the third magnetic region and the fourth magnetic region arranged in a direction parallel to the first optical axis OA1, and the side of the pitch magnet 181 away from the pitch coil 182 is the fourth magnetic region and the third magnetic region arranged in a direction parallel to the first optical axis OA1, wherein the third magnetic region on the side of the pitch magnet 181 facing the pitch coil 182 and the fourth magnetic region on the side of the pitch magnet 181 away from the pitch coil 182 are arranged opposite to each other in a direction parallel to the second optical axis OA2, and the fourth magnetic region on the side of the pitch magnet 181 facing the pitch coil 182 and the third magnetic region on the side of the pitch magnet 181 away from the pitch coil 182 are arranged opposite to each other in a direction parallel to the second optical axis OA2. When the pitch magnet 181 is a multi-pole magnet, it is beneficial to improve the magnetic field strength of the pitch magnet 181 and provide a driving force for the pitch movement of the reflection module 10. It is worth mentioning that the pitch magnet 181 also includes a neutral region between the third magnetic region and the fourth magnetic region.

[0096] Viewed along the third axis OA3, during the pitching motion of the movable carrier 12 around the second rotation axis C2, the change in the distance between the third magnetic area of ​​the pitch magnet 181 on the side facing the pitch coil 182 and the pitch coil 182 is opposite to the change in the distance between the fourth magnetic area of ​​the pitch magnet 181 on the side facing the pitch coil 182 and the pitch coil 182. Specifically, when the movable carrier 12 rotates clockwise around the second rotation axis C2, the distance between the third magnetic area of ​​the pitch magnet 181 on the side facing the pitch coil 182 and the pitch coil 182 increases, and the distance between the fourth magnetic area of ​​the pitch magnet 181 on the side facing the pitch coil 182 and the pitch coil 182 decreases. When the movable carrier 12 rotates counterclockwise around the second rotation axis C2, the distance between the third magnetic area of ​​the pitch magnet 181 on the side facing the pitch coil 182 and the pitch coil 182 decreases, and the distance between the fourth magnetic area of ​​the pitch magnet 181 on the side facing the pitch coil 182 and the pitch coil 182 increases.

[0097] Of course, the pitch magnet 181 may also be a monopole magnet, that is, the pitch magnet 181 includes a third magnetic region and a fourth magnetic region, and the present application does not impose any limitation on this.

[0098] In some embodiments, the pitch magnet 181 adopts high-performance permanent magnet materials, including but not limited to: neodymium iron boron permanent magnet materials, ferrite permanent magnet materials, etc., so that the pitch magnet 181 has a higher magnetic energy product and coercive force, so that the pitch magnet 181 can have a smaller volume while ensuring that the pitch magnet 181 has a stronger magnetic force, which is beneficial to increase the driving force between the pitch magnet 181 and the pitch coil 182, and make the structure of the reflection module 10 more compact, which is beneficial to reduce the overall size of the reflection module 10.

[0099] It should be understood that the number of the at least one pitch magnet 181 can be one or two; correspondingly, the number of the at least one pitch coil 182 can be one or two. Fig.12 As shown, the number of at least one pitch magnet 181 is one, including a first pitch magnet 1811, and the first pitch magnet 1811 is arranged on the carrier back 1211 of the movable carrier 12; the number of at least one pitch coil 182 is two, including a first pitch coil 1821 and a second pitch coil 1822, and the first pitch coil 1821 and the second pitch coil 1822 are arranged on the surface of the base 14 facing the carrier back 1211, so that the first pitch coil 1821, the second pitch coil 1822 and the first magnet pitch magnet 181 are arranged relatively to each other in a direction parallel to the second optical axis OA2, and the first pitch coil 1821, the second pitch coil 1822 and the first pitch magnet 1811 interact with each other to drive the movable carrier 12 to perform pitch motion around the second rotation axis C2.

[0100] Further, the first pitch coil 1821 and the second pitch coil 1822 are arranged at intervals in a direction parallel to the third axis OA3, and in a direction parallel to the second optical axis OA2, the first pitch coil 1821 is opposite to the third magnetic region and the fourth magnetic region of the first pitch magnet 1811, and the second pitch coil 1822 is opposite to the third magnetic region and the fourth magnetic region of the first pitch magnet 1811. In this way, the driving force of the movable carrier 12 during the pitch motion can be increased through the interaction between the first pitch coil 1821 and the first pitch magnet 1811 and the second pitch coil 1822 and the first pitch magnet 1811, and the pitch angle of the movable carrier 12 rotating around the second rotation axis C2 can be increased.

[0101] In some embodiments, the pitch driving unit 18 and the rotation driving unit 17 are arranged on different sides. Specifically, the pitch driving unit 18 is located at the back of the optical path turning element 11, and the rotation driving unit 17 is located at the bottom of the optical path turning element 11. More specifically, the pitch magnet 181 of the pitch driving unit 18 is arranged at the carrier back 1211 of the movable carrier 12, and the rotation magnet 171 of the rotation driving unit 17 is arranged at the bottom of the rotating frame 13. In this way, on the one hand, the pitch magnet 181 and the rotating magnet 171 are respectively arranged on the movable carrier 12 and the rotating frame 13, and are respectively located on the back of the movable carrier 12 and the bottom of the rotating frame 13, which can avoid magnetic interference between the pitch magnet 181 and the rotating magnet 171; on the other hand, the rotating magnet 171 and the pitch magnet 181 are arranged on opposite sides, which can provide a larger placement space for the pitch magnet 181 on the back of the movable carrier 12, so as to increase the size of the pitch magnet 181, improve the driving force during the pitch movement, and achieve a larger pitch movement angle; on the other hand, the pitch magnet 181 and the rotating magnet 171 are respectively arranged on two components, which can realize the separate driving of the pitch movement and the rotation movement, and it is not easy to interfere with each other.

[0102] In some embodiments, the pitch driving unit 18 and the pitch supporting unit 16 are located on different sides of the movable carrier 12. Specifically, the pitch driving unit 18 is arranged on the carrier back 1211 of the movable carrier 12, and the pitch supporting unit 16 is arranged on the carrier bottom 1212 of the movable carrier 12. In this way, a larger placement space can be provided for the pitch magnet 181 on the back of the movable carrier 12 to increase the size of the pitch magnet 181, increase the driving force during the pitch movement, and achieve a larger pitch movement angle. Moreover, through the cooperation of the pitch driving unit 18 and the pitch supporting unit 16, the movable carrier 12 can be driven to perform pitch movement around the second rotation axis C2 relative to the rotating frame 13 more reliably and smoothly.

[0103] In some embodiments, the rotating support part 15 and the rotating drive part 17 are located on the same side of the rotating frame 13. Specifically, the rotating support part 15 and the rotating drive part 17 are both arranged at the bottom of the rotating frame 13. In this way, a larger placement space can be provided for the pitch magnet 181 on the back of the movable carrier 12 to increase the size of the pitch magnet 181, increase the driving force during the pitch movement, and achieve a larger pitch movement angle. Furthermore, through the cooperation of the rotating drive part 17 and the rotating support part 15, the rotating frame 13 can be driven to rotate around the first rotation axis C1 relative to the base 14 more reliably and smoothly.

[0104] In some embodiments, Fig.12 As shown, at least one rotating magnet 171 is disposed on one of the movable carrier 12 and the base 14, at least one rotating coil 172 is disposed on the other of the movable carrier 12 and the base 14, the at least one rotating magnet 171 and the at least one rotating coil 172 are disposed opposite to each other along a first direction, and the at least one rotating magnet 171 and the at least one rotating coil 172 interact with each other to drive the rotating frame 13 to rotate relative to the base 14 around the first rotation axis C1. In this way, the at least one rotating magnet 171 and the at least one pitching magnet 181 are both disposed on the movable carrier 12, so that the structure of the reflection module 10 is more compact. Further, the at least one rotating magnet 171 and the at least one pitching magnet 181 are disposed on different sides of the movable carrier 12, for example, the at least one rotating magnet 171 is disposed on the bottom of the movable carrier 12, and the at least one pitching magnet 181 is disposed on the back of the movable carrier 12, so as to avoid magnetic interference between the at least one rotating magnet 171 and the at least one pitching magnet 181.

[0105] Further, the carrier bottom 1212 of the movable carrier 12 is provided with a magnet groove, and at least one rotating magnet 171 is arranged in the magnet groove of the movable carrier 12. Correspondingly, the surface of the base 14 facing the movable carrier 12 has a coil groove, and at least one rotating coil 172 is arranged in the coil groove. The middle part of the frame body 131 of the rotating frame 13 has an opening structure, so that at least one rotating magnet 171 and at least one rotating coil 172 can be arranged relatively in a direction parallel to the first optical axis OA1 through the opening structure of the rotating frame 13, so that the structure of the reflection module 10 can be made more compact and the height of the reflection module 10 can be avoided from being increased.

[0106] Specifically, at least one rotating magnet 171 includes a first rotating magnet 1711 and a second rotating magnet 1712 spaced apart in a direction parallel to the third axis OA3, and at least one rotating coil 172 includes a first rotating coil 1721 and a second rotating coil 1722 spaced apart in a direction parallel to the third axis OA3, wherein the first rotating magnet 1711 and the first rotating coil 1721 are disposed opposite to each other in a direction parallel to the first optical axis OA1, and the second rotating magnet 1712 and the second rotating coil 1722 are disposed opposite to each other in a direction parallel to the first optical axis OA1. When the first rotating coil 1721 and the second rotating coil 1722 are energized, the first rotating magnet 1711 and the first rotating coil 1721 interact with each other, and the second rotating magnet 1712 and the second rotating coil 1722 interact with each other, so as to drive the rotating frame 13 to rotate around the first rotating axis C1.

[0107] like Figures 5 to 7 As shown, in some embodiments, the reflection module 10 further includes a magnetic magnet 123 and a yoke 143, wherein the magnetic magnet 123 is disposed on one of the movable carrier 12 and the base 14, and the yoke 143 is disposed on the other of the movable carrier 12 and the base 14. A magnetic attraction force is generated between the magnetic magnet 123 and the yoke 143 in a direction parallel to the first optical axis OA1, and under the action of the magnetic attraction force, the rotating frame 13 is clamped between the movable carrier 12 and the base 14, the pitch support portion 16 is pressed between the movable carrier 12 and the rotating frame 13, and the rotating support portion 15 is pressed between the rotating frame 13 and the base 14.

[0108] In this way, through the interaction between the magnetic magnet 123 and the yoke 143, a magnetic attraction force parallel to the first optical axis OA1 is provided to the movable carrier 12, and under the action of the magnetic attraction force, the movable carrier 12, the pitch support part 16, the rotating frame 13, the rotating support part 15 and the base 14 are stacked.

[0109] It should be understood that the pitch support part 16 and the rotation support part 15 can be reliably clamped between the movable carrier 12, the rotating frame 13 and the base 14 under the action of magnetic attraction, so that when the periscope camera module is subjected to external forces such as falling, collision, etc., it is beneficial to improve the reliability of the attachment between the movable carrier 12, the rotating frame 13 and the base 14, thereby reducing the risk of separation of the movable carrier 12, the rotating frame 13 and the base 14.

[0110] In some embodiments, the yoke 143 is a structure extending along a plane parallel to the second optical axis OA2 and the third axis OA3, and the yoke 143 is embedded in the base 14 through an insert injection molding process to reduce the space occupied by the yoke 143, thereby reducing the size of the reflection module 10. Further, the carrier bottom 1212 of the movable carrier 12 extends a protrusion toward the base 14 along a direction parallel to the first optical axis OA1, and the frame body 131 of the rotating frame 13 forms an opening so that the protrusion can extend toward the base 14 through the opening. Furthermore, the end of the protrusion is recessed inward to form a groove, and the magnetic magnet 123 is disposed in the groove, so that the position of the magnetic magnet 123 can be made closer to the yoke 143 to increase the magnetic attraction generated between the magnetic magnet 123 and the yoke 143.

[0111] Furthermore, along a direction parallel to the third axis OA3, the magnetic attraction magnet 123 is arranged between the first rotating magnet 1711 and the second rotating magnet 1712 to keep the point of action of the magnetic attraction force generated between the magnetic attraction magnet 123 and the yoke 143 on the movable carrier 12 located in the middle part of the carrier bottom 1212, thereby avoiding the movable carrier 12 from tilting.

[0112] like Figure 3 , Figure 8 and Fig.11 As shown, in some embodiments, the reflection module 10 also includes a position sensing component 19, which includes at least one rotation sensing element 191 and at least one pitch sensing element 193, wherein the at least one rotation sensing element 191 is used to sense information about the movable carrier 12 rotating around the first rotation axis C1, and the at least one pitch sensing element 193 is used to sense information about the movable carrier 12 rotating around the second rotation axis C2.

[0113] Furthermore, the position sensing component 19 also includes at least one rotation sensing magnet 192, at least one rotation sensing magnet 192 is arranged on one of the movable carrier 12 and the base 14, at least one rotation sensing element 191 is arranged on the other of the movable carrier 12 and the base 14, and at least one rotation sensing magnet 192 and at least one rotation sensing element 191 are arranged relative to each other to sense the magnetic field information of at least one rotation sensing magnet 192 through at least one rotation sensing element 191.

[0114] Among them, at least one rotation sensing element 191 includes a first rotation sensing element 1911 and a second rotation sensing element 1912, and at least one rotation sensing magnet 192 includes a first rotation sensing magnet 1921 and a second rotation sensing magnet 1922. The first rotation sensing magnet 1921 is arranged on the surface of the first carrier side wall 1221 facing the base 14, the first rotation sensing element 1911 is arranged on the surface of the base 14 facing the first carrier side wall 1221, and the first rotation sensing magnet 1921 and the first rotation sensing element 1911 are arranged opposite to each other along a direction parallel to the third axis OA3. The second rotation sensing magnet 1922 is arranged on the surface of the second carrier side wall 1222 facing the base 14, the second rotation sensing element 1912 is arranged on the surface of the base 14 facing the second carrier side wall 1222, and the second rotation sensing magnet 1922 and the second rotation sensing element 1912 are arranged opposite to each other along a direction parallel to the third axis OA3.

[0115] It should be understood that when the movable carrier 12 rotates around the first rotation axis C1, there may be interference of pitching motion around the second rotation axis C2, which in turn affects the sensing accuracy of the rotation sensing element 191. Therefore, in order to improve the sensing accuracy of the rotation sensing element 191, it is necessary to reduce the interference of pitching motion around the second rotation axis C2 that may exist when the movable carrier 12 rotates around the first rotation axis C1.

[0116] Specifically, the first rotating sensing element 1911 obtains the first rotating magnetic field information T1 of the first rotating magnet 1711, and the second rotating sensing element 1912 obtains the second rotating magnetic field information T2 of the second rotating magnet 1712, so that the information of the movable carrier 12 rotating around the first rotating axis C1 can be calculated through the first rotating magnetic field information T1 and the second rotating magnetic field information T2, and the information interference of the movable carrier 12 rotating around the second rotating axis C2 is eliminated. If there is a pitching motion around the second rotating axis C2 during the rotating motion of the movable carrier 12 around the first rotating axis C1, there is a certain tilt angle between the first rotating sensing element 1911 and the first rotating magnet 1711, and there is a certain tilt angle between the second rotating sensing element 1912 and the second rotating magnet 1712. In other words, the center line of the first rotation sensing element 1911 along the direction parallel to the first optical axis OA1 is not parallel to the center line of the first rotation sensing magnet 1921 along the direction parallel to the first optical axis OA1, and the center line of the second rotation sensing element 1912 along the direction parallel to the first optical axis OA1 is not parallel to the center line of the second rotation sensing magnet 1922 along the direction parallel to the first optical axis OA1. This will cause the sensing results of the first rotation sensing element 1911 and the second rotation sensing element 1912 to be easily affected by the rotation of the movable carrier 12 around the second rotation axis C2.

[0117] In the present application, the first rotation sensing element 1911 and the second rotation sensing element 1912 cooperate with each other to reduce the influence of the pitch motion around the second rotation axis C2 when the movable carrier 12 performs rotation motion around the first rotation axis C1 . Specifically, the first rotating sensing element 1911 obtains the first rotating magnetic field information T1 of the first rotating sensing magnet 1921, and the second rotating sensing element 1912 obtains the second rotating magnetic field information T2 of the second rotating sensing magnet 1922, and calculates the center value Tm of the rotational motion of the movable carrier 12 around the first rotation axis C1, where Tm=(T1+T2) / 2; further, the stroke information about the rotational motion of the movable carrier 12 around the first rotation axis C1 obtained by the first rotating sensing element 1911 is T1-Tm, and the stroke information about the rotational motion of the movable carrier 12 around the first rotation axis C1 obtained by the second rotating sensing element 1912 is T2-Tm; further, the stroke information about the rotational motion of the movable carrier 12 around the first rotation axis C1 is (T1-Tm)+(T2-Tm), i.e., the sum of the stroke information about the rotational motion of the movable carrier 12 around the first rotation axis C1 obtained by the first rotating sensing element 1911 and the second rotating sensing element 1912.

[0118] It should be understood that when the movable carrier 12 simultaneously has rotational motion around the first rotation axis C1 and pitching motion around the second rotation axis C2, the first rotating magnetic field information T1 and the second rotating magnetic field information T2 will include travel information of the pitching motion around the second rotation axis C2, and the travel information of the pitching motion included in the first rotating magnetic field information T1 is opposite to the travel information of the pitching motion included in the second rotating magnetic field information T2, and then the travel information of the pitching motion is offset by calculating (T1+T2) / 2, so that there is no interference from the travel information of the pitching motion in Tm, which is beneficial to improving the accuracy of the sensing results of the first rotating sensing element 1911 and the second rotating sensing element 1912, and thus is beneficial to achieving more accurate closed-loop control of the reflection module 10.

[0119] It is worth mentioning that the aforementioned (T1+T2), (T1-Tm), (T2-Tm), (T1-Tm)+(T2-Tm) are not simple additions and subtractions, but involve complex algorithmic processing. Specifically, the process of calculating the rotation angle may include but is not limited to: 1. Data preprocessing steps for magnetic field information, such as converting the output signals of the first rotation sensing element 1911 and the second rotation sensing element 1912 into digital signals, filtering and amplifying the signals; 2. Centering or zero-meaning the data, or performing translation processing; 3. Calibrating the detection results according to the external environment in which the reflection system is located; 4. Debugging the optimization algorithm during the calculation process.

[0120] In some embodiments, the rotation sensing magnet 192 is disposed on the opposite side from the rotating magnet 171 to reduce magnetic interference between the rotation sensing magnet 192 and the rotating magnet 171. Specifically, the rotation sensing magnet 192 is disposed on the side of the movable carrier 12, and the rotating magnet 171 is disposed at the bottom of the rotating frame 13.

[0121] In some embodiments, Fig.12 As shown, at least one rotation sensing element 191 includes a first rotation sensing element 1911 and a second rotation sensing element 1912. The first rotation sensing element 1911 and the second rotation sensing element 1912 are respectively arranged on the surface of the base 14 facing the bottom 1212 of the carrier, so that the first rotation sensing element 1911 and the first rotating magnet 1711 are arranged opposite to each other along a direction parallel to the first optical axis OA1, and the second rotation sensing element 1912 and the second rotating magnet 1712 are arranged opposite to each other along a direction parallel to the first optical axis OA1. When the rotating frame 13 drives the first rotating magnet 1711 and the second rotating magnet 1712 to rotate around the first rotating axis C1, the first rotating sensing element 1911 and the second rotating sensing element 1912 respectively sense the rotation information of the first rotating magnet 1711 and the rotation information of the second rotating magnet 1712, and obtain the information of the movable carrier 12 rotating around the first rotating axis C1 by calculating the rotation information of the first rotating magnet 1711 and the rotation information of the second rotating magnet 1712, and eliminate the information interference of the movable carrier 12 rotating around the second rotating axis C2. In other words, the rotating magnet 171 is used as both a driving magnet and a sensing magnet to reduce the number of components of the reflection module 10 and reduce the complexity of the reflection module 10.

[0122] The specific calculation method can refer to the calculation method of the first rotating magnetic field information T1 and the second rotating magnetic field information T2, and this application will not elaborate on it.

[0123] Furthermore, the rotation sensing element 191 can be disposed inside the rotation coil 172 to reduce the space occupied by the rotation sensing element 191 and provide a larger space for the rotation coil 172. Of course, the rotation sensing element 191 can also be disposed outside the rotation coil 172 to reduce the interference of the rotation coil 172 on the pitch sensing element 193 after being energized, which is beneficial to improve the sensing accuracy of the rotation sensing element 191.

[0124] In some embodiments, the pitch magnet 181 has a length extending in a direction parallel to the third axis OA3 and in a direction parallel to the first optical axis OA1 on the carrier back 1211 of the movable carrier 12, so that the pitch magnet 181 has a larger size on the carrier back 1211 of the movable carrier 12. The pitch sensing element 193 is disposed on the surface of the base 14 facing the carrier back 1211, so that the pitch magnet 181 and the pitch sensing element 193 are disposed opposite to each other in a direction parallel to the second optical axis OA2. When the pitch magnet 181 performs a pitch motion around the second rotation axis C2, the pitch sensing element 193 can always be located within the magnetic field range of the pitch magnet 181, so that the pitch sensing element 193 is less disturbed by the rotation motion, which is conducive to improving the sensing accuracy of the pitch sensing element 193 and achieving better closed-loop control of the reflection module 10. In other words, the pitch magnet 181 is used as both a driving magnet and a sensing magnet to reduce the number of components of the reflection module 10 and reduce the complexity of the reflection module 10.

[0125] Specifically, Fig.12 As shown, the pitch sensing element 193 is disposed between the first pitch coil 1821 and the second pitch coil 1822, and the pitch sensing element 193 and the pitch magnet 181 are disposed opposite to each other along a direction parallel to the second optical axis OA2. In this way, on the one hand, the pitch motion of the pitch magnet 181 can be sensed by the pitch sensing element 193; on the other hand, the interference of the magnetic field generated by the first pitch coil 1821 and the second pitch coil 1822 after being energized on the pitch sensing element 193 can be reduced, so as to improve the sensing accuracy of the pitch sensing element 193.

[0126] It is worth mentioning that the reflection module 10 may also include a pitch sensing magnet, which is disposed on the carrier back 1211 of the movable carrier 12, and the pitch sensing element 193 is disposed on the surface of the base 14 facing the carrier back 1211, so that the pitch sensing magnet and the pitch sensing element 193 are relatively disposed in a direction parallel to the second optical axis OA2, so as to obtain the magnetic field information of the pitch sensing magnet through the pitch sensing element 193. Furthermore, the pitch magnet 181 and the pitch sensing magnet are disposed separately, so as to reduce the influence of the magnetic field of the pitch magnet 181 on the magnetic field of the pitch sensing magnet, which is conducive to improving the sensing accuracy of the pitch sensing element 193.

[0127] Furthermore, the pitch sensing element 193 can be disposed inside the pitch coil 182 to reduce the space occupied by the pitch sensing element 193 and provide a larger space for the pitch coil 182. Of course, the pitch sensing element 193 can also be disposed outside the pitch coil 182 to reduce the influence of the pitch coil 182 on the pitch sensing element 193 after being energized, which is beneficial to improve the sensing accuracy of the pitch sensing element 193.

[0128] Furthermore, the rotation sensing magnet 192 , the rotation magnet 171 , the pitch sensing magnet and the pitch magnet 181 can be respectively arranged on different sides of the movable carrier 12 , which is beneficial to avoid mutual interference between the magnets and thereby improve the driving accuracy and control accuracy of the reflection module 10 .

[0129] It is worth mentioning that the rotation sensing element 191 and the pitch sensing element 193 may use the same element or different elements, such as Hall, driver IC, TMR, or rotating gyroscope.

[0130] In some embodiments, the total number of the rotation sensing elements 191 and the pitch sensing elements 193 is at least three, so that the sensing accuracy of the rotation sensing elements 191 and the pitch sensing elements 193 can be improved through calculation, thereby improving the closed-loop control accuracy of the reflection module 10.

[0131] In some embodiments, the reflection module 10 further includes a driving circuit, which is electrically connected to the rotating coil 172, the pitch coil 182, the rotating sensing element 191 and the pitch sensing element 193 and provides current, so that the rotating coil 172 and the rotating magnet 171 cooperate with each other to drive the rotating frame 13 to rotate around the first rotation axis C1, and the pitch coil 182 and the pitch magnet 181 cooperate with each other to drive the movable carrier 12 to pitch around the second rotation axis C2. Furthermore, the rotating sensing element 191 and the pitch sensing element 193 can also sense the travel information of the rotating frame 13 and the movable carrier 12 to improve the closed-loop control accuracy of the reflection module 10. It is worth mentioning that the driving circuit can be implemented as a conductive metal insert embedded in the base 14, or can be implemented as a flexible circuit board attached to the base 14, and the present application does not make specific restrictions on this.

[0132] In some embodiments, the reflection module 10 further includes a buffer portion, which includes a first buffer member, and the first buffer member is disposed on at least one of the movable carrier 12 and the rotating frame 13, so that the first buffer member is located between the movable carrier 12 and the rotating frame 13. During the pitching motion of the movable carrier 12 around the second rotation axis C2, the first buffer member first contacts the movable carrier 12 or the rotating frame 13, thereby playing a buffering role, avoiding direct collision between the movable carrier 12 and the rotating frame 13, which is beneficial to protecting the movable carrier 12 and the rotating frame 13, thereby reducing the risk of damage to the movable carrier 12 and the rotating frame 13, and extending the service life of the reflection module 10. In addition, the first buffer member is spaced between the movable carrier 12 and the rotating frame 13, so as to play a small noise effect, which is beneficial to improving user experience.

[0133] Specifically, the first buffer is arranged on the surface of the carrier bottom 1212 of the movable carrier 12 facing the rotating frame 13, and the first buffer can also be arranged on the surface of the carrier bottom 1212 of the rotating frame 13 facing the movable carrier 12, so that when the movable carrier 12 performs a pitch movement around the second rotation axis C2, the first buffer first contacts the movable carrier 12 or the rotating frame 13, and then plays a buffering role.

[0134] In some embodiments, the buffering part further includes a second buffer, which is disposed on at least one of the rotating frame 13 and the base 14, so that the second buffer is located between the rotating frame 13 and the base 14. When the rotating frame 13 rotates around the first rotating axis C1, the second buffer first contacts the rotating frame 13 or the base 14, thereby playing a buffering role, avoiding direct collision between the rotating frame 13 and the base 14, which is beneficial to protecting the rotating frame 13 and the base 14, thereby reducing the risk of damage to the rotating frame 13 and the base 14 and extending the service life of the reflective module 10. In addition, the second buffer is spaced between the rotating frame 13 and the base 14, so as to play a small noise effect, which is beneficial to improving user experience.

[0135] Specifically, the second buffer is disposed on a surface where the rotating frame 13 and the base 14 come into contact with each other during the rotation of the rotating frame 13 around the first rotating axis C1. For example, the second buffer is disposed on a surface of the side of the rotating frame 13 facing the base 14, or the second buffer may be disposed on a surface of the side of the base 14 facing the rotating frame 13.

[0136] In some embodiments, the buffer portion further includes a third buffer, which is disposed on at least one of the movable carrier 12 and the base 14, so that the third buffer is located between the movable carrier 12 and the base 14. When the movable carrier 12 moves along the first optical axis OA1, the third buffer first contacts the movable carrier 12 or the base 14 to avoid direct collision between the movable carrier 12 and the base 14. It should be understood that in the case where the periscope camera module falls, the impact force of the fall may cause the movable carrier 12 to separate from the base 14, thereby causing the movable carrier 12 to collide with the base 14. The third buffer can play a buffering role, which is beneficial to protecting the movable carrier 12 and the base 14, so as to reduce the risk of damage to the movable carrier 12 and the base 14 and extend the service life of the reflection module 10. In addition, the third buffer is spaced between the movable carrier 12 and the base 14, so as to reduce the effect of noise reduction, which is beneficial to improving the user experience.

[0137] It should be understood that the first buffer, the second buffer and the third buffer can be implemented as a silicone structure; or, the first buffer, the second buffer and the third buffer can also be implemented as a structure combining metal and silicone; or, the first buffer, the second buffer and the third buffer can also be implemented as a metal structure. The structures of the first buffer, the second buffer and the third buffer can be the same or different, and this application does not limit this.

[0138] like Fig.11 As shown, in some embodiments, the reflection module 10 further includes a first magnetic conductive member 101 and a second magnetic conductive member 102, wherein the first magnetic conductive member 101 is integrally formed on the movable carrier 12 by an insert injection molding process, at least a portion of the first magnetic conductive member 101 is located on a side of the pitch magnet 181 away from the pitch coil 182, at least a portion of the first magnetic conductive member 101 is located on a side of the rotation sensing magnet 192 away from the rotation sensing element 191, and at least a portion of the first magnetic conductive member 101 is located on a side of the magnetic attraction magnet 123 away from the yoke 143. In this way, the first magnetic conductive member 101 can make the magnetic force of the pitch magnet 181, the rotation sensing magnet 192 and the magnetic attraction magnet 123 more concentrated, avoid the magnetic force of the pitch magnet 181, the rotation sensing magnet 192 and the magnetic attraction magnet 123 from overflowing, and increase the magnetic field strength of the pitch magnet 181, the rotation sensing magnet 192 and the magnetic attraction magnet 123.

[0139] Furthermore, the second magnetic conductive member 102 is integrally formed on the rotating frame 13 through an insert injection molding process, and at least a portion of the second magnetic conductive member 102 is located on a side of the rotating magnet 171 away from the rotating coil 172. In this way, the second magnetic conductive member 102 can make the magnetic force of the rotating magnet 171 more concentrated, avoid the magnetic force of the rotating magnet 171 from overflowing, and increase the magnetic field strength of the rotating magnet 171.

[0140] Specifically, the first magnetic conductive part 101 includes a first magnetic conductive part 1011, a second magnetic conductive part 1012, a third magnetic conductive part 1013 and a fourth reinforcement part 1014. The first magnetic conductive part 1011 extends in a plane parallel to the first optical axis OA1 and the third axis OA3. The first magnetic conductive part 1011 is arranged on the side of the pitch magnet 181 away from the pitch coil 182, so that the magnetic force of the pitch magnet 181 is more concentrated through the first magnetic conductive part 1011, thereby avoiding the overflow of the magnetic force of the pitch magnet 181, increasing the magnetic field strength of the pitch magnet 181, and thereby improving the driving force when driving the movable carrier 12 to rotate around the second rotation axis C2.

[0141] The second magnetic conductive portion 1012 is bent from the plane where the first magnetic conductive portion 1011 is located in a direction parallel to the second optical axis OA2, and the second magnetic conductive portion 1012 extends in a plane parallel to the first optical axis OA1 and the second optical axis OA2. There are two second magnetic conductive portions 1012, and the two second magnetic conductive portions 1012 are respectively arranged on the side of the first rotation sensing magnet 1921 away from the first rotation sensing element 1911, and the side of the second rotation sensing magnet 1922 away from the second rotation sensing element 1912. The magnetic force of the first rotation sensing magnet 1921 and the second rotation sensing magnet 1922 is more concentrated through the second magnetic conductive portion 1012, so as to avoid the magnetic force of the first rotation sensing magnet 1921 and the second rotation sensing magnet 1922 from overflowing, increase the magnetic field strength of the first rotation sensing magnet 1921 and the second rotation sensing magnet 1922, and thus improve the sensing accuracy of the rotation sensing element 191.

[0142] The third magnetic conductive part 1013 is bent twice along the direction parallel to the second optical axis OA2 and the direction parallel to the first optical axis OA1 from the plane where the first magnetic conductive part 1011 is located, and the third magnetic conductive part 1013 extends in the plane parallel to the second optical axis OA2 and the third axis OA3. The third magnetic conductive part is arranged on the side of the magnetic magnet 123 away from the magnetic yoke 143, so that the magnetic force of the magnetic magnet 123 is more concentrated through the third magnetic conductive part, the magnetic force of the magnetic magnet 123 is prevented from overflowing, the magnetic field strength of the magnetic magnet 123 is increased, and the magnetic attraction generated between the magnetic magnet 123 and the magnetic yoke 143 is increased.

[0143] The fourth reinforcing portion 1014 is bent from the plane where the first magnetic conductive portion 1011 is located in a direction intersecting the first optical axis OA1, the second optical axis OA2 and the third axis OA3, and the fourth reinforcing portion 1014 extends in the bearing portion 1213 of the movable carrier 12 at a certain angle relative to the first optical axis OA1 and the second optical axis OA2. Furthermore, the plane where the fourth reinforcing portion 1014 is located is parallel to the plane where the mounting surface of the optical path turning element 11 is located. The fourth reinforcing portion 1014 can increase the strength of the movable carrier 12, thereby preventing the optical path turning element 11 disposed on the movable carrier 12 from being damaged. Of course, the first magnetic conductive portion 1011, the second magnetic conductive portion 1012 and the third magnetic conductive portion 1013 can also realize the function of increasing the strength of the movable carrier 12.

[0144] It should be understood that the first magnetic conductive portion 1011 , the second magnetic conductive portion 1012 , the third magnetic conductive portion 1013 and the fourth reinforcing portion 1014 may be an integrated structure or a split structure.

[0145] Specifically, the second magnetic conductive member 102 extends in a plane parallel to the second optical axis OA2 and the third axis OA3, and is disposed on a side of the rotating magnet 171 away from the rotating coil 172, so that the magnetic force of the rotating magnet 171 is more concentrated through the second magnetic conductive member 102, thereby avoiding overflow of the magnetic force of the rotating magnet 171, increasing the magnetic field strength of the rotating magnet 171, and thereby improving the driving force when driving the movable carrier 12 to rotate around the first rotating axis C1.

[0146] It is worth mentioning that the first magnetic conductive member 101 and the second magnetic conductive member 102 may not contain magnetism, for example, the first magnetic conductive member 101 and the second magnetic conductive member 102 may be made of ferrite, or the first magnetic conductive member 101 and the second magnetic conductive member 102 may be permanent magnets themselves.

[0147] In some embodiments, the reflection module 10 also includes a first lens, which is supported by a movable carrier 12 and arranged close to the object side. The first optical axis OA1 passes through the optical path turning element 11 and the first lens. The movable carrier 12 is suitable for carrying and driving the first lens and the optical path turning element 11 to synchronously rotate around the first rotation axis C1 and / or synchronously pitch around the second rotation axis C2.

[0148] It should be understood that the movable carrier 12 carries and drives the first lens and the optical path turning element 11 to rotate synchronously around the first rotation axis C1 and / or to pitch synchronously around the second rotation axis C2, which is conducive to reducing the overall size of the periscope camera module. Specifically, if only the optical path turning element 11 is driven to rotate around the first rotation axis C1 and / or around the second rotation axis C2, and the first lens is fixed, the first lens needs to be fixed to the light incident side of the optical path turning element 11 through the base 14. In order to avoid interference between the movable carrier 12 and the first lens when rotating, a large gap needs to be reserved between the first lens and the movable carrier 12, which will inevitably lead to an increase in the height dimension of the reflection module 10. And because the base 14 has a large size, the first lens may need a larger size to be adapted to be installed on the base 14, which is not conducive to the miniaturization and lightweight of the periscope camera module.

[0149] In the present application, the first lens is mounted on the movable carrier 12. Since the size of the movable carrier 12 is smaller than the base 14, the first lens can be installed and fixed by using a smaller size, which is conducive to reducing the size of the first lens and reducing the weight of the first lens. In addition, there is no need to reserve a large gap between the first lens and the optical path turning element 11 for the optical path turning element 11 to rotate alone, that is, the gap between the first lens and the optical path turning element 11 can be smaller, which is conducive to making the structure of the reflection module 10 more compact.

[0150] In some embodiments, the first lens has at least one convex surface, so that the first lens has positive optical power for converging light. It is worth mentioning that the first lens defines a first optical axis OA1. It should be understood that the light along the first optical axis OA1 is converged after passing through the first lens, so as to increase the amount of light entering without changing the physical aperture of the periscope camera module, that is, equivalent to increasing the effective aperture of the periscope camera module.

[0151] Furthermore, the light rays converged by the first lens remain converged after being reflected by the optical path turning element 11, thereby facilitating reducing the size of each optical lens in the lens module 20 of the periscope camera module along the first optical axis OA1, thereby reducing the shoulder height of the periscope camera module, and facilitating the miniaturization of the periscope camera module.

[0152] Furthermore, after being focused by the first lens, the light is incident on the light path turning element 11, so that the reflection point of the focused light at the outermost position on the light path turning element 11 is closer to the first optical axis OA1. In other words, compared with the light being incident on the light path turning element 11 in parallel, the area of ​​the reflective surface of the light path turning element 11 required by the present application is smaller, which is beneficial to reducing the size of the light path turning element 11, thereby reducing the overall height of the periscope camera module.

[0153] In some embodiments, the first lens is a non-cut lens, which is conducive to reducing the difficulty of processing the first lens, thereby reducing the production cost of the reflection module 10. In other embodiments, the first lens is a cut lens, which is conducive to reducing the size of the reflection module 10 along the direction parallel to the first optical axis OA1. This application does not make specific restrictions on this.

[0154] In some embodiments, the movable carrier 12 and the rotating frame 13 are suitable for carrying and driving the first lens and the optical path turning element 11 to synchronously rotate around the first rotation axis C1 and / or synchronously pitch around the second rotation axis C2, so that the relative position and relative angle between the first lens and the optical path turning element 11 are stable. In other words, when the light passes through the first lens and is incident on the optical path turning element 11, the stability of the propagation path and propagation angle of the light can be maintained, which is not only conducive to improving the imaging clarity of the periscope camera module, but also conducive to enhancing the overall image quality of the periscope camera module.

[0155] In the present application, the movable carrier 12 and the rotating frame 13 are suitable for carrying and driving the first lens and the optical path turning element 11 to synchronously rotate around the first rotation axis C1 and / or pitch around the second rotation axis C2, so that the propagation path and angle of the light between the first lens and the optical path turning element 11 are stable, which is beneficial to reduce the movement of the focusing position of the light when it propagates to the photosensitive module 30, thereby improving the final imaging quality of the periscope camera module.

[0156] It is worth mentioning that by carrying the first lens and the optical path turning element 11 for synchronous movement through the movable carrier 12, the variables that need to be considered during the anti-shake operation can be reduced, which is conducive to simplifying the driving structure and improving reliability, and can reduce the research and development difficulty and manufacturing difficulty of the reflection module 10 and the periscope camera module, which is conducive to reducing time cost and production cost.

[0157] In some embodiments, the movable carrier 12 includes a bracket, which is integrally or separately arranged on the movable carrier 12. Specifically, the bracket has a first fixing portion for mounting the first lens, and the movable carrier 12 is able to drive the bracket to synchronously rotate around the first rotation axis C1 and / or synchronously pitch around the second rotation axis C2, thereby causing the first lens and the optical path turning element 11 to move synchronously.

[0158] In some embodiments, a first gap is defined between the first fixed portion and the bearing portion 1213 of the movable carrier 12, and at least a portion of the first lens extends into the first gap, thereby making the arrangement of the first fixed portion, the first lens, the optical path turning element 11 and the movable carrier 12 more compact in a direction parallel to the first optical axis OA1, which is beneficial to reducing the size of the reflection module 10 in a direction parallel to the first optical axis OA1, thereby reducing the height of the periscope camera module.

[0159] In some embodiments, the reflection module 10 also includes a second lens, which is supported by a movable carrier 12 and arranged close to the image side. The second optical axis OA2 passes through the optical path turning element 11 and the second lens. The optical path turning element 11 is supported by the movable carrier 12 and is located between the first lens and the second lens to reflect the light incident from the object side to the image side. The movable carrier 12 is suitable for carrying and driving the first lens, the optical path turning element 11 and the second lens to synchronously rotate around the first rotation axis C1 and / or synchronously pitch around the second rotation axis C2. Refer to the above-mentioned content of the synchronous movement of the first lens and the optical path turning element 11 and no further details will be given.

[0160] In some embodiments, the second lens has at least one concave surface, so that the second lens has a negative optical power for expanding the light. It is worth mentioning that the second lens defines a second optical axis OA2. Specifically, the second lens has a negative optical power, so that the light along the second optical axis OA2 is expanded after passing through the second lens.

[0161] It should be understood that by providing a second lens with a beam expansion function, the light converged by the first lens can be diffused after passing through the second lens, increasing the coverage area of ​​the light reaching the photosensitive chip, and thus the movement of the optical path turning element 11 has a relatively small effect on the position of the light on the image sensor. The difference between the MTF design value under unit jitter angle of the periscope camera module and the MTF design value under static state is small, so that the periscope camera module can obtain clearer images in motion, vibration or jitter usage scenarios.

[0162] In some embodiments, the bracket further has a second fixing portion connected to the first fixing portion for mounting a second lens, thereby enabling the first lens, the optical path turning element 11 and the second lens to move synchronously. Please refer to the above content and will not repeat it here.

[0163] In some embodiments, a periscope camera module is provided, including the above-mentioned reflection module 10, which is used to reflect the light incident along the first optical axis OA1 to be emitted along the second optical axis OA2; the lens module 20, which is configured to receive the light from the reflection module 10 and continue to propagate the light along the second optical axis OA2; the photosensitive module 30, the photosensitive module 30 is configured to receive the light and perform imaging; the base 50, the base 50 has a accommodating cavity, the reflection module 10 and the lens module 20 are arranged in the accommodating cavity, and the base 14 of the reflection module 10 is integrally or separately arranged on the base 50; and the shell 40, the shell 40 is covered on the base 50.

[0164] In some embodiments, the lens module 20 includes a plurality of lenses sequentially arranged along the second optical axis OA2, and at least one of the plurality of lenses can be driven to move in a direction parallel to the second optical axis OA2 in the accommodating cavity of the base 50 to achieve optical zoom and / or optical focus functions. Of course, at least one of the plurality of lenses can be fixed in the accommodating cavity of the base 50, and the present application does not limit this.

[0165] Furthermore, the lens module 20 may further include a focus driving motor to drive at least one of the plurality of lenses to move in a direction parallel to the second optical axis OA2, wherein the focus driving unit may be implemented as a VCM motor, an SMA motor or a piezoelectric motor.

[0166] In some embodiments, the photosensitive module 30 includes a circuit board, an image sensor, and a plurality of electronic components. Specifically, the image sensor and the plurality of electronic components are electrically connected to the circuit board, and the image sensor is used to receive the external light image collected by the reflection module 10, and is electrically connected to the external electronic device through the circuit board. It should be understood that the plurality of electronic components include but are not limited to passive electronic devices such as resistors and capacitors, and driver chips, storage chips, etc.

[0167] Furthermore, the photosensitive module 30 further includes a filter assembly, which includes a filter element, and the filter element is used to filter the incident light entering the image sensor to filter out the incident light, such as infrared light, and other stray light that is not necessary for imaging. It should be understood that the filter element is maintained on the photosensitive path of the image sensor and is disposed between the lens module 20 and the image sensor.

[0168] Furthermore, the filter assembly also includes a filter bracket, the filter bracket has a light hole, the filter element is mounted and fixed on the filter bracket, and corresponds to at least part of the photosensitive area of ​​the image sensor, and the incident light passing through the lens module 20 is incident on the image sensor through the light hole. The filter element can be attached to the filter bracket positively or invertedly. The filter bracket is fixed to the circuit board. It is worth mentioning that the photosensitive module 30 is fixed to the image side of the filter element through the filter bracket; the photosensitive module 30 can also be fixed to the image side of the filter element through the chip circuit board, and this application does not make specific restrictions on this.

[0169] The above describes the basic principles, main features and advantages of the present invention. Those skilled in the art should understand that the present invention is not limited to the above embodiments. The above embodiments and descriptions only describe the principles of the present invention. The present invention may be subject to various changes and improvements without departing from the spirit and scope of the present invention. These changes and improvements fall within the scope of the present invention to be protected. The scope of protection claimed by the present invention is defined by the attached claims and their equivalents.

Claims

1. A reflection module, characterized in that: include: An optical path turning element, used for reflecting light incident along a first optical axis to emerge along a second optical axis; A rotating frame, coupled to the optical path turning element, and supporting the optical path turning element to rotate around a first rotating axis, wherein the first rotating axis is parallel to the second optical axis; A base, used for accommodating the rotating frame; A rotation driving unit, configured to drive the rotating frame to rotate relative to the base around a first rotation axis; A rotating support portion is crimped between the rotating frame and the base along a direction parallel to the first optical axis, and maintains frictional contact with at least one of the rotating frame and the base; the rotating support portion includes a rotating guide shaft and a rotating support member spaced apart along a direction parallel to the first rotating axis, the first rotating axis passes through the center of the rotating guide shaft and the center of the rotating support member, wherein the rotating guide shaft extends along a direction parallel to the first rotating axis.

2. The reflection module according to claim 1, characterized in that: The rotation guide shaft has a friction contact line extending in a direction parallel to the first rotation axis with at least one of the rotation frame and the base, and a projection of the rotation guide shaft in a direction parallel to the first optical axis has a side parallel to the first rotation axis.

3. The reflection module according to claim 2, characterized in that: The rotation guide shaft has a first central axis passing through the center thereof, the rotation support has a second central axis passing through the center thereof, the first central axis, the second central axis and the first rotation axis coincide with each other, and the first rotation axis is not colinear with the second optical axis.

4. The reflection module according to claim 3, characterized in that: The rotation guide axis is a convex axis protruding from the rotation frame or the base in a direction parallel to the first optical axis, and the rotation support is a boss protruding from the rotation frame or the base in a direction parallel to the first optical axis, wherein the convex axis extends in a direction parallel to the first rotation axis, and the boss has a rotational symmetry axis parallel to the first optical axis.

5. The reflection module according to claim 4, characterized in that: The convex shaft has a first plane extending along a plane parallel to the plane where the second optical axis and the third axis are located, and a first curved surface protruding from the first plane along a direction parallel to the first optical axis, the first plane is integrally connected to the surface of the rotating frame facing the base, the surface of the base facing the rotating frame has a guide rail, the convex shaft and the guide rail are arranged opposite to each other along a direction parallel to the first optical axis, the first curved surface of the convex shaft is in frictional contact with the inner surface of the guide rail, wherein the first optical axis, the second optical axis and the third axis are perpendicular to each other.

6. The reflection module according to claim 5, characterized in that: The boss has a second plane extending in parallel to the plane where the second optical axis and the third axis are located, and a second curved surface protruding from the second plane in a direction parallel to the first optical axis. The second plane is integrally connected to the surface of the rotating frame facing the base. The surface of the base facing the rotating frame has a guide groove. The boss and the guide groove are arranged opposite to each other in a direction parallel to the first optical axis, and the second curved surface of the boss is in frictional contact with the inner surface of the guide groove.

7. The reflection module according to claim 3, characterized in that: The rotating guide shaft is a roller, and the roller has a length extending in a direction parallel to the first optical axis. The rotating support is a ball bearing. The surface of the rotating frame facing the base has a first upper guide rail and a first upper guide groove, and the surface of the base facing the rotating frame has a first lower guide rail and a first lower guide groove. The first upper guide rail and the first lower guide rail are arranged opposite to each other in a direction parallel to the first optical axis, and the first upper guide groove and the first lower guide groove are arranged opposite to each other in a direction parallel to the first optical axis. The roller is movably clamped between the first upper guide rail and the first lower guide rail, and the roller is movably clamped between the first upper guide groove and the first lower guide groove.

8. The reflection module according to claim 6, characterized in that: The rotating drive unit includes at least one rotating magnet and at least one rotating coil, the at least one rotating magnet includes a first rotating magnet and a second rotating magnet arranged at intervals in a direction parallel to the third axis, and the at least one rotating coil includes a first rotating coil and a second rotating coil arranged at intervals in a direction parallel to the third axis, wherein the first rotating magnet and the first rotating coil are arranged opposite to each other in a direction parallel to the first optical axis, and the second rotating magnet and the second rotating coil are arranged opposite to each other in a direction parallel to the first optical axis, and when the first rotating coil and the second rotating coil are energized, the first rotating magnet and the first rotating coil interact with each other, and the second rotating magnet and the second rotating coil interact with each other to drive the rotating frame to rotate around the first rotating axis relative to the base.

9. The reflection module according to claim 8, characterized in that: The first rotating magnet, the second rotating magnet and the rotating support part are located at the bottom of the rotating frame, wherein the first rotating magnet and the second rotating magnet are located on both sides of the rotating support part along a direction parallel to the third axis.

10. The reflection module according to claim 9, characterized in that: When the rotating frame rotates around the first rotating axis, the distance between the first rotating magnet and the first rotating coil changes inversely to the distance between the second rotating magnet and the second rotating coil when viewed from a direction parallel to the second optical axis.

11. The reflection module according to claim 10, characterized in that: The reflection module also includes a movable carrier, a pitch support part and a pitch drive part, the movable carrier is movably arranged on the rotating frame, the pitch support part is crimped between the movable carrier and the rotating frame, and the second rotation axis passes through the pitch support part, wherein the second rotation axis is parallel to the third axis, and the pitch drive part is configured to drive the movable carrier to drive the optical path turning element to perform a pitch movement around the second rotation axis.

12. The reflection module according to claim 11, characterized in that: The pitch support part and the pitch driving part are located at different sides of the movable carrier, wherein the pitch support part is arranged at the bottom of the movable carrier, and the pitch driving part is arranged at the back of the movable carrier.

13. The reflection module according to claim 11, characterized in that: The movable carrier includes an integrally connected carrier body and a carrier side wall, the carrier side wall includes a first carrier side wall and a second carrier side wall spaced apart in a direction parallel to a third axis, the first carrier side wall and the second carrier side wall respectively have a first recess and a second recess recessed inwardly in a first optical axis direction; the rotating frame includes a frame body and a support arm extending from the frame body along a first direction, the support arm includes a first support arm and a second support arm spaced apart in a direction parallel to the third axis, the first support arm extends into the first recess, and the second support arm extends into the second recess; wherein the pitch support part includes a first pitch support member and a second pitch support member, the first pitch support member is clamped between the first support arm and the first recess, and the second pitch support member is clamped between the second support arm and the second recess.

14. The reflection module according to claim 13, characterized in that: An imaginary line connecting the first pitch support member and the second pitch support member projected in a direction parallel to the first optical axis is perpendicular to an imaginary line connecting the rotation guide axis and the rotation support member projected in a direction parallel to the first optical axis.

15. The reflection module according to claim 11, characterized in that: The pitch driving unit includes at least one pitch magnet and at least one pitch coil, and the at least one pitch magnet and the at least one pitch coil are arranged relative to each other in a direction parallel to the second optical axis. The at least one pitch coil and the at least one pitch magnet interact with each other to drive the movable carrier to perform pitch movement around the second rotation axis, wherein the at least one pitch magnet is arranged on the back of the movable carrier, and the at least one rotating magnet is arranged on the bottom of the rotating frame.

16. The reflection module according to claim 15, characterized in that: The reflection module also includes a position sensing component, which includes at least one rotation sensing element and at least one rotation sensing magnet, the at least one rotation sensing element includes a first rotation sensing element and a second rotation sensing element, and the at least one rotation sensing magnet includes a first rotation sensing magnet and a second rotation sensing magnet, the first rotation sensing element obtains first rotating magnetic field information of the first rotating magnet, and the second rotation sensing element obtains second rotating magnetic field information of the second rotating magnet, so that information about the rotation of the movable carrier around the first rotation axis can be calculated through the first rotating magnetic field information and the second rotating magnetic field information, and information interference caused by the rotation of the movable carrier around the second rotation axis can be eliminated.

17. A periscope camera module, characterized in that: include: The reflection module according to any one of claims 1 to 16, wherein the reflection module is configured to reflect light incident along a first optical axis to emerge along a second optical axis; a lens module, wherein the lens module is configured to receive the light from the reflection module and continue to propagate the light along a second optical axis; A photosensitive module, wherein the photosensitive module is configured to receive light and perform imaging; A base body, the base body having a containing cavity, the reflection module and the lens module are arranged in the containing cavity, and the base of the reflection module is integrally or separately arranged on the base body; A shell is disposed on the base.

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