Optical lens, camera module, and electronic device

Abstract

The present application provides an optical lens (100), a camera module (1000), and an electronic device (1). The optical lens (100) comprises a movable reflector (103), a driving assembly (110), and a mobile lens group (105). When the movable reflector (103) is in a first position (103c), the movable reflector (103) and the mobile lens group (105) can form a first optical path. When the movable reflector (103) is in a second position (103d), the mobile lens group (105) can form a second optical path. The driving assembly (110) can drive the movable reflector (103) to switch between the first position (103c) and the second position (103d), thereby implementing switching between the first optical path and the second optical path. The optical lens (100) and the camera module (1000) reuse the mobile lens group (105) and an image sensor (200). When the movable reflector (103) is in the first position (103c), at least one axis of one rotation (103e) of the movable reflector (103) is located on the side of the movable reflector (103) away from the mobile lens group (105); or, the movable reflector (103) has two axes of rotation located on the plane in which the movable reflector (103) is located, or on a same side of the plane in which the movable reflector (103) is located. When the movable reflector (103) is located at the second position (103d), a front end (103a) of the movable reflector (103) is located outside a movement region (105a) of the mobile lens group (105) and does not affect the operation of the mobile lens group (105). Thus, the size of the optical lens (100) in a first direction can be made small.

Description

An optical lens, a camera module and an electronic device

[0001] The present application claims priority to the Chinese patent application No. 202410866407.6, filed on June 28, 2024, and entitled "An optical lens, a camera module and an electronic device", the content of which is incorporated herein by reference in its entirety. TECHNICAL FIELD

[0002] Embodiments of the present application relate to the technical field of camera modules, and in particular to an optical lens, a camera module and an electronic device. BACKGROUND

[0003] In the related art, a plurality of camera modules can be provided on an electronic device such as a mobile phone, and the effective focal lengths of the plurality of camera modules are different. By switching different camera modules, multi-scene and multi-focal-length shooting can be achieved. How to provide an optical lens and a camera module that can switch different optical paths and occupy less space is a problem that the industry needs to face. SUMMARY

[0004] Embodiments of the present application provide an optical lens, a camera module and an electronic device, which can switch different optical paths and occupy less space.

[0005] Embodiments of the present application adopt the following technical solutions:

[0006] In a first aspect, the present application provides an optical lens, comprising: a movable reflecting member, a driving assembly and a moving lens group. The movable reflecting member and the moving lens group are arranged along a first direction. The movable reflecting member has a front end close to the moving lens group. The driving assembly is configured to drive the movable reflecting member to switch between a first position and a second position. When the movable reflecting member is in the first position, the movable reflecting member can reflect a first light to the moving lens group. When the movable reflecting member is in the second position, the movable reflecting member can avoid a second light projected to the moving lens group, and the front end is located outside a moving area of the moving lens group. The movable reflecting member has one or two rotation axes. When the movable reflecting member is in the first position, at least one rotation axis of the movable reflecting member and the moving lens group are located on opposite sides of a plane on which the movable reflecting member is located. Alternatively, the movable reflecting member has two rotation axes, and both of the two rotation axes of the movable reflecting member are located on the plane on which the movable reflecting member is located or on the same side of the plane on which the movable reflecting member is located.

[0007] The optical lens, the movable reflecting element and the moving lens group are arranged along a first direction. The movable reflecting element and the moving lens group can form a first optical path when the movable reflecting element is in a first position. The moving lens group can form a second optical path when the movable reflecting element is in a second position. The driving assembly can drive the movable reflecting element to switch between the first position and the second position, so that the first optical path and the second optical path can be switched. The optical lens reuses the moving lens group, and the optical lens can reuse an image sensor when the optical lens is applied to a camera module. The optical lens and the camera module having the optical lens occupy less space and have lower use cost. When the movable reflecting element is in the first position, at least one rotation axis of the movable reflecting element is located on a side of the movable reflecting element away from the moving lens group. Alternatively, the movable reflecting element has two rotation axes, and both of the two rotation axes are located on a plane where the movable reflecting element is located or on a same side of the plane. When the movable reflecting element is in the second position, a front end of the movable reflecting element is located outside a movable area of the moving lens group and does not enter the movable area of the moving lens group, so that the movable reflecting element does not affect the operation of the moving lens group, and the size of the optical lens in the first direction can be reduced.

[0008] In an optional implementation, the movable reflecting element can be a plane mirror, the plane mirror can reflect light, and the plane mirror occupies less space.

[0009] In an optional implementation, an angle between a plane where the movable reflecting element is located and a third direction is 45 degrees when the movable reflecting element is in the first position. The plane where the movable reflecting element is located is perpendicular to the third direction when the movable reflecting element is in the second position.

[0010] In an optional implementation, the moving lens group can be driven to move along an optical axis direction by a driving motor. The driving motor can be a voice coil motor, a piezoelectric motor, a shape memory alloy motor, or the like.

[0011] In an optional implementation, during movement of the movable reflecting element between the first position and the second position, the front end of the movable reflecting element is entirely located outside the movable area of the moving lens group, or the front end of the movable reflecting element is partially located inside the movable area of the moving lens group.

[0012] In an optional implementation, the movable reflecting element can block the second light when the movable reflecting element is in the first position. The first light is preferably reflected to the moving lens group by the movable reflecting element in the first position, so that the second light does not enter an optical path as stray light to cause unclear imaging.

[0013] In an optional implementation, the movable reflecting element can block the first light when the movable reflecting element is in the second position. The second light is preferably projected to the moving lens group, so that the first light does not enter the optical path as stray light to cause unclear imaging.

[0014] In an optional implementation, the base and the support are further included, the support is movably mounted on the base, the movable reflecting member is fixed on the support, and the driving assembly is arranged on the base and the support. The movable reflecting member is assembled conveniently. The position of the support is adjusted by the driving assembly, and the position of the movable reflecting member is adjusted.

[0015] In an optional implementation, the support is rotatably connected to the base. The support and the base are rotatably connected through a pin shaft. One of the support and the base is fixedly connected to the pin shaft, and the other is rotatably connected to the pin shaft.

[0016] In an optional implementation, the support has a light-transmitting area, and the light-transmitting area is arranged opposite to the reflecting surface of the movable reflecting member. When the movable reflecting member is in the first position, the second light cannot pass through the light-transmitting area but is blocked by the movable reflecting member. When the movable reflecting member is in the second position, the light-transmitting area is used for transmitting the second light to the moving lens group.

[0017] In an optional implementation, the support includes a supporting wall and a first side wall, the first side wall is connected to the supporting wall, and the movable reflecting member is arranged on the supporting wall. The supporting wall and the first side wall form a cavity as the light-transmitting area.

[0018] In an optional implementation, the support includes a first side wall, and no supporting wall is arranged. One side of the movable reflecting member is connected to the first side wall. The light-transmitting area can be a cavity or a transparent body. The light-transmitting area is arranged adjacent to the first side wall.

[0019] In an optional implementation, the driving assembly is a first rotary motor, and the movable part of the first rotary motor is connected to the support. The first rotary motor includes a fixed part and a movable part, and the movable part can rotate relative to the fixed part.

[0020] In an optional implementation, the first rotary motor can be a voice coil motor, a piezoelectric motor, a shape memory alloy motor, or the like.

[0021] In an optional implementation, the first rotary motor includes a first magnet group and a first coil. One of the first magnet group and the first coil is arranged on the base, and the other is arranged on the support. The first magnet group extends in an arc shape along the rotation axis of the support as the axis. The first magnet group and the first coil are arranged opposite to each other along a second direction. The first magnet group and the first coil are cooperated to drive the support to rotate. The second direction is perpendicular to the first direction. The first magnet group and the first coil constitute a voice coil motor.

[0022] In an optional implementation, the first magnet group has two opposite polarity directions, the polarity direction of the first magnet group is parallel to the second direction, the polarity direction of the first magnet group is perpendicular to the winding plane of the first coil, the first coil has two first sub-segments that are spaced apart and conductive, and the two first sub-segments and the two polarity directions of the first magnet group are oppositely arranged one by one.

[0023] When the first coil is powered, the current directions in the two first sub-segments are opposite. The two polarity directions of the first magnet group are opposite, and the two first sub-segments can be subjected to a same-direction Lorentz force moment, which can make the first coil rotate in a direction on the XZ plane relative to the first magnet group.

[0024] In an optional implementation, the first magnet group can be two magnets arranged around the rotation axis of the support and having opposite polarity directions. In addition, the first magnet group can also be a Halbach magnet array, a single magnet made by a double-pole magnetization process, and the like.

[0025] In an optional implementation, the side of the first magnet group away from the first coil is provided with a first magnetic conducting member. The magnetic line of the first magnet group can be improved, so that the first coil forms a larger electromagnetic driving force under the magnetic field of the first magnet group to drive the rotation of the support and the movable reflecting element.

[0026] In an optional implementation, in the case where the first rotary motor includes the first magnet group and the first coil, one of the first magnet group and the first coil can be embedded in the first mounting slot of the support, and the other is embedded in the second mounting slot of the base. This scheme has a compact structure and occupies a small space.

[0027] In an optional implementation, the support has a first side wall, the base has a second side wall, the support is rotationally mounted on the base, and the second side wall and the first side wall are spaced apart along the second direction. The first side wall has the first mounting slot, and the second side wall has the second mounting slot.

[0028] In an optional implementation, the driving assembly includes a first translation motor and a first transmission mechanism, the first translation motor is used to drive the movement of the first transmission mechanism to rotate the support. The first translation motor has a fixed part and a movable part, and the movable part can translate relative to the fixed part.

[0029] In an optional implementation, the first translation motor can be a voice coil motor, a piezoelectric motor, a shape memory alloy motor, or the like. Hereinafter, the voice coil motor is taken as an example for description.

[0030] In some embodiments, the first translation motor comprises a second magnet set and a second coil, one of the second magnet set and the second coil is a fixed part of the first translation motor and is arranged on the base, and the other is a movable part of the first translation motor, the second magnet set is arranged along the first direction or the third direction, the second magnet set and the second coil are oppositely arranged along the second direction, the second magnet set and the second coil cooperate to output linear motion, the first direction and the third direction form a predetermined angle, and the second direction is perpendicular to the first direction and the third direction respectively. The second magnet set and the second coil constitute a voice coil motor.

[0031] In an optional implementation, the second magnet set has two opposite polarity directions, the polarity direction of the second magnet set is parallel to the second direction, the polarity direction of the second magnet set is perpendicular to the winding plane of the second coil, and the second coil has two second sub-segments that are spaced apart and conductive, and the two second sub-segments and the two polarity directions of the second magnet set are oppositely arranged one by one.

[0032] In an optional implementation, the second magnet set can include two magnets, the two magnets are arranged along the first direction (or the third direction) and have opposite polarity directions. In addition, the second magnet set can also be a Halbach magnet array, a single magnet made by a double-pole magnetization process, etc.

[0033] In an optional implementation, the second magnet set is provided with a second magnetic conducting member away from the second coil. The magnetic line of the second magnet set is improved, so that the second coil forms a larger electromagnetic driving force under the magnetic field of the second magnet set to drive the first transmission mechanism to move.

[0034] In an optional implementation, the first transmission mechanism comprises a first crank and a first sliding member, the first sliding member is slidingly installed on the base along the first direction, the movable part of the first translation motor is movable along the first direction and is connected with the first sliding member, one end of the first crank is pivotally connected with the base, the other end of the first crank is pivotally connected with a support, and the support is pivotally connected with the first sliding member. The base, the first crank, the first sliding member and the support can constitute a crank slider mechanism. When the first translation motor drives the first sliding member to translate along the first direction on the base, the support and the first crank move together, and the support can rotate relative to the base.

[0035] In an optional implementation, the rotation axis of the first crank relative to the base is located between the two rotation axes of the support, so that the movable reflecting member can be switched between the first position and the second position, and the first crank and the support occupy a smaller space and have a compact structure.

[0036] In an optional implementation, a guide structure extending along the first direction can be arranged between the base and the first sliding member. The first sliding member is slidingly installed on the base.

[0037] In an alternative implementation, when the first translation motor comprises a second magnet set and a second coil, one of the second magnet set and the second coil can be embedded in the second mounting slot of the base, and the other can be embedded in the third mounting slot of the first sliding member, which is compact in structure.

[0038] In an alternative implementation, the first crank and the first sliding member can be arranged in pairs. The base comprises a connecting wall and a pair of second side walls connected to opposite sides of the connecting wall, respectively. The support comprises a support wall and a pair of first side walls connected to opposite sides of the support wall, respectively, and the movable reflecting member is arranged on the support wall. The support is movably mounted in the base. The support and the movable reflecting member are stably moved relative to the base.

[0039] In an alternative implementation, the driving assembly comprises a first translation motor and a first transmission mechanism, the first transmission mechanism comprises a first connecting rod and a second sliding member, the second sliding member is slidably mounted on the base in the first direction, the movable part of the first translation motor is movable in the first direction and connected to the second sliding member, the support is pivotally connected to the base, one end of the first connecting rod is pivotally connected to the second sliding member, and the other end of the first connecting rod is pivotally connected to the support. The base, the support, the second sliding member and the first connecting rod can constitute a crank slider mechanism. When the first translation motor drives the second sliding member to translate in the first direction on the base, the first connecting rod and the support follow the movement, and the support can rotate.

[0040] In an alternative implementation, a guide structure extending in the first direction can be arranged between the base and the second sliding member, so as to achieve the sliding mounting of the second sliding member on the base.

[0041] In an alternative implementation, when the first translation motor comprises a second magnet set and a second coil, one of the second magnet set and the second coil can be embedded on the base, and the other can be embedded on the second sliding member, which is compact in structure and occupies less space.

[0042] In an alternative implementation, the first lens set and the movable reflecting member are arranged opposite to each other in the third direction, and the second sliding member can be arranged away from the first lens set. The rotation axis of the support relative to the base, the rear end of the first movable reflecting member, the rotation axis of the support relative to the first connecting rod and the front end of the first movable reflecting member are arranged in sequence.

[0043] In an alternative implementation, the first lens set and the movable reflecting member are arranged opposite to each other in the third direction, and the second sliding member can be arranged close to the first lens set. The rotation axis of the support relative to the base and the rear end of the first movable reflecting member are arranged adjacent to each other. The rear end of the first movable reflecting member, the rotation axis of the support relative to the first connecting rod and the front end of the first movable reflecting member are arranged in sequence.

[0044] In an alternative implementation, the driving assembly comprises a first translation motor and a first transmission mechanism, the first transmission mechanism comprises a second crank and a third sliding member, the third sliding member is slidingly mounted on the base along a third direction, the movable part of the first translation motor is movable along the third direction and connected with the third sliding member, one end of the second crank is pivotally connected with the base, the other end of the second crank is pivotally connected with a support, the support is pivotally connected with the third sliding member, and a predetermined angle is formed between the first direction and the third direction. The base, the second crank, the third sliding member and the support can constitute a crank slider mechanism. When the first translation motor drives the third sliding member to move along the third direction on the base, the support and the second crank move followingly, and the support can rotate.

[0045] In an alternative implementation, the driving assembly comprises a first translation motor and a first transmission mechanism, the first transmission mechanism comprises a second crank and a third sliding member, the third sliding member is slidingly mounted on the base along a third direction, the movable part of the first translation motor is movable along the third direction and connected with the third sliding member, one end of the second crank is pivotally connected with the base, the other end of the second crank is pivotally connected with a support, the support is pivotally connected with the third sliding member, and a predetermined angle is formed between the first direction and the third direction. The base, the second crank, the third sliding member and the support can constitute a crank slider mechanism. When the first translation motor drives the third sliding member to move along the third direction on the base, the support and the second crank move followingly, and the support can rotate.

[0046] In an alternative implementation, the first sliding part (the second sliding part) is a columnar structure, and the columnar structure is slidingly fitted with the first sliding groove (the second sliding groove). The base can have the first sliding groove for the first sliding part to slide and the second sliding groove for the second sliding part to slide.

[0047] In an alternative implementation, the driving assembly comprises a first translation motor and a first transmission mechanism, the support is rotatably connected with the base, the first transmission mechanism comprises a gear and a rack, the gear is fixed on the support, the rotation axis of the support relative to the base is coaxially arranged with the gear, the rack is fixed on the movable part of the first translation motor, and the gear and the rack are engaged. When the first translation motor drives the rack to translate, the gear and the rack are engaged, the gear is driven to rotate, and the support is rotated relative to the base.

[0048] In an alternative implementation, the driving assembly comprises a second rotation motor and a second transmission mechanism, the second rotation motor is used to drive the second transmission mechanism to move so as to rotate the support. The second rotation motor can drive the second transmission mechanism to move, and the rotation of the support is realized through the second transmission mechanism.

[0049] In an alternative implementation, the support is pivotally connected to the base, and the second transmission mechanism includes a third crank and a fifth sliding member, the fifth sliding member is slidingly mounted on the support, one end of the third crank is fixed to the movable part of the second rotary motor, and the other end of the third crank is pivotally connected to the fifth sliding member. When the second rotary motor drives the third crank to rotate, the fifth sliding member and the support move together, and the support can rotate relative to the base.

[0050] In an alternative implementation, the fifth sliding member can have a linear guide groove, and the support can have a linear guide rail, the linear guide rail and the linear guide groove are slidingly fitted, so that the fifth sliding member is slidingly mounted on the support.

[0051] In an alternative implementation, the driving assembly includes a second translation motor, a third translation motor, a sixth sliding member and a seventh sliding member, the sixth sliding member is slidingly mounted on the base in a first direction, the second translation motor is used to drive the sixth sliding member to move in the first direction, the seventh sliding member is slidingly mounted on the base in a third direction, and the third translation motor is used to drive the seventh sliding member to move in the third direction; the support has a first end and a second end distributed oppositely, the first end is pivotally connected to the sixth sliding member, and the second end is pivotally connected to the seventh sliding member, and the first direction and the third direction form a predetermined included angle. By driving the two ends of the support to move in different directions by the second translation motor and the third translation motor respectively, the movement of the support is realized.

[0052] In an alternative implementation, the sixth sliding member can have a first guide groove in the first direction, and the base can have a first guide rail in the first direction, the first guide rail and the first guide groove are slidingly fitted, so that the sixth sliding member is slidingly mounted on the base in the first direction.

[0053] In an alternative implementation, the seventh sliding member can have a second guide groove in the third direction, and the base can have a second guide rail in the third direction, the second guide rail and the second guide groove are slidingly fitted, so that the seventh sliding member is slidingly mounted on the base in the third direction.

[0054] In an alternative implementation, the optical lens further includes a first magnetic assembly for moving the movable reflecting member adjacent to the first position to the first position, the first magnetic assembly includes a first magnetic member arranged on the base and a second magnetic member arranged on the support, and the first magnetic member and the second magnetic member can be magnetically attracted. When the movable reflecting member is adjacent to the first position, the support is moved under the magnetic attraction between the first magnetic member and the second magnetic member until the movable reflecting member is located at the first position, and the movable reflecting member on the support is kept at the first position.

[0055] In an optional implementation, the bracket includes a support wall and a first side wall connected to the support wall, and the movable reflection member is arranged on the support wall. The base includes a connecting wall and a second side wall connected to the connecting wall. The first magnetic member can be arranged on the connecting wall and / or the second side wall of the base, and the second magnetic member can be arranged on the first side wall of the bracket.

[0056] In an optional implementation, the optical lens further includes a second magnetic assembly for moving the movable reflection member adjacent to the second position to the second position. The second magnetic assembly includes a third magnetic member arranged on the base and a fourth magnetic member arranged on the bracket, and the third magnetic member and the fourth magnetic member can be magnetically attracted. When the movable reflection member is adjacent to the second position, the bracket is moved under the magnetic attraction between the third magnetic member and the fourth magnetic member until the movable reflection member is located at the second position, and the movable reflection member on the bracket is kept at the second position.

[0057] In an optional implementation, the bracket includes a support wall and a first side wall connected to the support wall, and the movable reflection member is arranged on the support wall. The base includes a connecting wall and a second side wall connected to the connecting wall. The third magnetic member can be directly arranged on the second side wall of the base, and the fourth magnetic member can be arranged on the first side wall of the bracket close to the side edge of the support wall.

[0058] In an optional implementation, the third magnetic member can also be indirectly arranged on the second side wall of the base, and the first lens group and the movable reflection member are arranged opposite in the third direction. The housing part of the first lens group is arranged on the second side wall, the third magnetic member is arranged on the housing part of the first lens group, and the fourth magnetic member can be arranged on the first side wall of the bracket.

[0059] In an optional implementation, the base has a first outward protrusion, and the side of the bracket facing the first outward protrusion has a second outward protrusion. When the first outward protrusion and the second outward protrusion abut, the bracket cannot continue to move, and the movable reflection member is limited to the first position. The contact area of the bracket and the base is small, which facilitates accurate positioning of the bracket on the base and accurate positioning of the movable reflection member at the first position.

[0060] In an optional implementation, the base has a third outward protrusion, and when the third outward protrusion and the bracket abut, the bracket cannot continue to move, and the movable reflection member is limited to the second position. The contact area of the bracket and the base is small, which facilitates accurate positioning of the bracket on the base and accurate positioning of the movable reflection member at the second position.

[0061] In an optional implementation, the support frame includes a support wall and a first side wall connected to the support wall, and the movable reflecting member is arranged on the support wall. The base includes a connecting wall and a second side wall connected to the connecting wall. The second side wall and the first side wall are arranged to face each other in the second direction. The first outer protrusion can be arranged on the connecting wall, and the second outer protrusion can be arranged on the support wall and / or the first side wall. The third outer protrusion can be arranged on the second side wall.

[0062] In an optional implementation, the support frame is provided with an elastic frame, the elastic frame includes a bending portion and a support portion, one end of the bending portion is connected to the support portion, and the other end of the bending portion is fixed to the support frame. The movable reflecting member is fixed to the support portion. The position of the movable reflecting member can be prevented from changing after being heated, so that the movable reflecting member is accurately installed on the support frame, and the first light is reflected to the image sensor in a predetermined direction through the movable reflecting member.

[0063] In an optional implementation, the bending portion can be bent along the second direction to form a U-shaped, S-shaped or other-shaped bending structure. The support portion can be in a sheet shape and used to connect to the back of the movable reflecting member.

[0064] In an optional implementation, the support frame has a receiving groove, and the elastic frame and the movable reflecting member are arranged in the receiving groove. The assembly size of the movable reflecting member and the support frame can be reduced.

[0065] In an optional implementation, the elastic frames are arranged in pairs and spaced apart on the support frame. The end of the bending portion away from the support portion can be fixed to the wall surface of the receiving groove. The support portions in the pair of elastic frames are arranged oppositely, and the support portions are connected to the back of the movable reflecting member, so that the movable reflecting member is accurately installed on the support frame.

[0066] In an optional implementation, a contact portion is arranged between the support frame and the base along the second direction, and the second direction is perpendicular to the first direction. The friction between the support frame and the base can be reduced, the support frame is limited in the base in the second direction, the support frame can stably move relative to the base, and the shaking of the support frame during movement can be reduced. The contact portion can be a ball or a protrusion. The contact portion can be arranged on the support frame or the base.

[0067] In an optional implementation, the support frame has a pair of first side walls arranged in pairs and spaced apart, the base has a pair of second side walls arranged in pairs and spaced apart, the support frame is movably installed in the base, and the pair of first side walls and the pair of second side walls are arranged one by one in correspondence. The corresponding second side wall and the first side wall are respectively provided with a contact portion arranged therebetween along the second direction.

[0068] In an optional implementation, the optical lens further comprises a first lens group, a second lens group and a fixed reflecting element. The movable reflecting element is located between the fixed reflecting element and the moving lens group along the first direction. The first lens group and the movable reflecting element are oppositely arranged along the third direction, and the second lens group and the fixed reflecting element are oppositely arranged along the third direction. A predetermined angle is formed between the first direction and the third direction. When the movable reflecting element is in the first position, the first light ray passes through the first lens group and is reflected by the movable reflecting element to the moving lens group, and the optical lens has a first effective focal length. When the movable reflecting element is in the second position, the second light ray passes through the second lens group and is reflected by the fixed reflecting element to the moving lens group, and the movable reflecting element can avoid the reflected light formed by the fixed reflecting element. The optical lens has a second effective focal length which is not equal to the first effective focal length. When the movable reflecting element is in the first position and the second position respectively, the effective focal length of the optical lens is different, that is, the optical lens has different effective focal lengths when the moving lens group receives the light rays from the first lens group and the second lens group, so that the optical lens has an optical zooming capability.

[0069] In an optional implementation, when the movable reflecting element is in the first position, the second light ray from the second lens group passes through the fixed reflecting element to form reflected light, and the movable reflecting element can block the reflected light. The first light ray from the first lens group preferably passes through the movable reflecting element in the first position to the moving lens group, avoiding the second light ray as stray light entering the light path to cause unclear imaging.

[0070] In an optional implementation, when the movable reflecting element is in the second position, the movable reflecting element can be arranged close to the first lens group, and the movable reflecting element can block the first light ray from the first lens group. The second light ray from the second lens group preferably passes through the fixed reflecting element to the moving lens group, avoiding the first light ray as stray light entering the light path to cause unclear imaging.

[0071] In an optional implementation, the fixed reflecting element can be a plane mirror, which can reflect light rays and occupy a small space. In the case that the optical lens comprises a base and a support, the support is movably mounted on the base, and the fixed reflecting element can be arranged on the base.

[0072] In an optional implementation, the first direction and the third direction are perpendicular to each other. The first lens group and the second lens group are arranged along the first direction, and the optical axis of the first lens group and the optical axis of the second lens group are both parallel to the third direction. The plane on which the fixed reflecting element is located forms a 45° angle with the third direction.

[0073] In an optional implementation, the first lens group and the second lens group can be located on the same side of the fixed reflecting element, and the first lens group and the second lens group are arranged along the first direction.

[0074] In an optional implementation, the first lens group and the second lens group are respectively located on opposite sides of the fixed reflective member.

[0075] In an optional implementation, the distance between the front end and the rear end is greater than or equal to the straight-line distance between the two positions of the front end when the movable reflective member is respectively in the first position and the second position. The movable reflective member is set to a length that enables the first light to be reflected by the movable reflective member in the first position to the moving lens group. The movable reflective member can be switched from the first position to the second position more quickly with a smaller stroke, and the user experience is good.

[0076] In an optional implementation, the straight-line distance between the two positions of the front end is greater than or equal to the straight-line distance between the two positions of the rear end when the movable reflective member is respectively in the first position and the second position. During the switching of the movable reflective member from the first position to the second position, the front end gradually approaches the first lens group, and the straight-line distance between the two positions of the front end is greater than or equal to the straight-line distance between the two positions of the rear end, that is, the stroke of the front end is greater than the stroke of the rear end.

[0077] In an optional implementation, the optical lens includes a first lens group, a second lens group, a third lens group, a fixed reflective member, a first movable reflective member, a second movable reflective member, a first driving assembly, a second driving assembly, and a moving lens group. The fixed reflective member, the second movable reflective member, the first movable reflective member, and the moving lens group are arranged along a first direction. The first movable reflective member and the first lens group are arranged along a third direction, the fixed reflective member and the second lens group are arranged along the third direction, and the third lens group and the second movable reflective member are arranged along the third direction. The first driving assembly is configured to drive the first movable reflective member to switch between a first position and a second position. The second driving assembly is configured to drive the second movable reflective member to switch between a third position and a fourth position. The first effective focal length, the second effective focal length, and the third effective focal length are different from each other.

[0078] In an optional implementation, the focal length of one of the first lens group and the second lens group can be 0, and the focal length of the other lens group can be positive or negative.

[0079] In an optional implementation, the focal lengths of the first lens group and the second lens group are the same (not 0), and the distances between the first lens group and the moving lens group and between the second lens group and the moving lens group are different.

[0080] In an optional implementation, a fixed lens group can be arranged on the light-emitting side of the moving lens group, and the fixed reflective member, the movable reflective member, the fixed lens group, and the moving lens group are sequentially arranged along the first direction.

[0081] In an optional implementation, the prism is further included, the prism has an incident surface, a first reflecting surface and a second reflecting surface, the incident surface of the prism is arranged opposite to the light exit side of the mobile lens group, and the light from the mobile lens group is incident into the prism from the incident surface, and then is reflected by the first reflecting surface and the second reflecting surface in sequence and is emitted from the first reflecting surface. A large-area image sensor can be arranged on the first reflecting surface of the prism, and the thickness of the camera module is small.

[0082] In a second aspect, the embodiments of the present application provide a camera module, including an image sensor and an optical lens, the light exit side of the optical lens is arranged opposite to the image sensor, and the optical lens is used for projecting light on the image sensor.

[0083] In a third aspect, the embodiments of the present application provide an electronic device, including a device shell and a camera module, and the camera module is arranged in the device shell. BRIEF DESCRIPTION OF DRAWINGS

[0084] Fig. 1 (a) and (b) are structural schematic diagrams of the electronic device from different perspectives according to the embodiments of the present application;

[0085] Fig. 2 (a) and (b) are structural schematic diagrams of the movable reflecting element in the optical lens in the first position and the second position according to the embodiments of the present application;

[0086] Fig. 3 is a structural schematic diagram of the movable reflecting element in the optical lens in different positions according to the embodiments of the present application;

[0087] Fig. 4 is a structural schematic diagram of the movable reflecting element in the optical lens in different positions according to another embodiment of the present application;

[0088] Fig. 5 is a perspective assembly diagram of the optical lens according to the embodiments of the present application;

[0089] Fig. 6 is a perspective exploded view of the optical lens of Fig. 5, and the movable reflecting element is in the first position;

[0090] Fig. 7 is a structural schematic diagram of the optical lens of Fig. 6, and the movable reflecting element is in the second position, and part of the structure is not shown;

[0091] Fig. 8 is a further perspective exploded view of part of the structure of the optical lens of Fig. 6;

[0092] Fig. 9 is another perspective exploded view of part of the structure of the optical lens of Fig. 8 from another perspective;

[0093] Fig. 10 is a still further perspective exploded view of part of the structure of the optical lens of Fig. 8;

[0094] Fig. 11 (a) and (b) are sectional views of the optical lens of Fig. 5 when the movable reflecting element is in the first position and the second position, respectively;

[0095] Figures 12(a) and (b) are schematic diagrams of structures of driving components in the optical lens of Figure 5 driving the movable reflecting member to move in different directions, respectively;

[0096] Figures 13(a) and (b) are schematic diagrams of structures of driving components and movable reflecting members in another embodiment of the present application when the movable reflecting member is in a first position and a second position, respectively;

[0097] Figure 14 is an assembled perspective view of an optical lens according to another embodiment of the present application;

[0098] Figure 15 is an exploded perspective view of the optical lens of Figure 14;

[0099] Figure 16 is a further exploded perspective view of a partial structure of the optical lens of Figure 15;

[0100] Figure 17 is a still further exploded perspective view of a partial structure of the optical lens of Figure 16;

[0101] Figure 18 is another perspective view of the optical lens of Figure 17;

[0102] Figures 19(a) and (b) are schematic diagrams of structures of the optical lens of Figure 14 when the movable reflecting member is in a first position and a second position, respectively;

[0103] Figures 20(a) and (b) are schematic diagrams of structures of driving components and movable reflecting members in another embodiment of the present application when the movable reflecting member is in a first position and a second position, respectively;

[0104] Figures 21(a) and (b) are schematic diagrams of structures of driving components and movable reflecting members in another embodiment of the present application when the movable reflecting member is in a first position and a second position, respectively;

[0105] Figures 22(a) and (b) are schematic diagrams of structures of driving components and movable reflecting members in another embodiment of the present application when the movable reflecting member is in a first position and a second position, respectively;

[0106] Figures 23(a) and (b) are schematic diagrams of structures of driving components and movable reflecting members in another embodiment of the present application when the movable reflecting member is in a first position and a second position, respectively;

[0107] Figure 24 is an assembled perspective view of an optical lens according to another embodiment of the present application;

[0108] Figure 25 is an exploded perspective view of the optical lens of Figure 24;

[0109] Figures 26(a) and (b) are schematic diagrams of structures of the optical lens of Figure 24 when the movable reflecting member is in a first position and a second position, respectively;

[0110] Fig. 27(a) and (b) are schematic diagrams of a driving assembly and a movable reflecting member in a first position and a second position, respectively, according to another embodiment of the present application;

[0111] Fig. 28(a) and (b) are schematic diagrams of a driving assembly and a movable reflecting member in a first position and a second position, respectively, according to another embodiment of the present application;

[0112] Fig. 29(a) and (b) are schematic diagrams of a movable reflecting member in a first position and a second position, respectively, in an optical lens according to another embodiment of the present application;

[0113] Fig. 30(a) to (c) are schematic diagrams of a first movable reflecting member in a first position, a first movable reflecting member in a second position and a second movable reflecting member in a fourth position, and a first movable reflecting member in a second position and a second movable reflecting member in a third position, respectively, in an optical lens according to another embodiment of the present application;

[0114] Fig. 31(a) and (b) are schematic diagrams of a movable reflecting member in a first position and a second position, respectively, in an optical lens according to another embodiment of the present application. DETAILED DESCRIPTION

[0115] In order to make the technical problems solved by the present application, the technical solutions and the beneficial effects clearer, the present application will be further described in detail below with reference to the drawings and embodiments. It should be understood that the specific embodiments described herein are only used to explain the present application and not used to limit the present application. Although the description of the present application will be introduced in combination with some embodiments, this does not mean that the features of the present application are limited to the implementation. On the contrary, the purpose of introducing the embodiments as the application is to cover other options or modifications that can be extended based on the claims of the present application. In order to provide a deep understanding of the present application, many specific details will be included in the following description. The present application can also be implemented without using these details. In addition, in order to avoid confusion or obscure the focus of the present application, some specific details will be omitted in the description. It should be noted that the embodiments and the features in the embodiments in the present application can be combined with each other without conflict.

[0116] It should be noted that when an element is referred to as being "fixed to" or "set to" another element, it can be directly on the other element or indirectly on the other element. When an element is referred to as being "connected to" another element, it can be directly connected to the other element or indirectly connected to the other element.

[0117] It should be understood that, in the description of the embodiments of the present application, it needs to be explained that, unless otherwise explicitly specified and limited, the terms "mounting", "connecting" should be understood in a broad sense, for example, "connecting" can be detachably connected, or can be non-detachably connected, can be directly connected, or indirectly connected through an intermediate medium. The directions or positional relationships indicated by the terms "length", "width", "upper", "lower", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer" and the like are based on the directions or positional relationships shown in the drawings, and are only for the purpose of facilitating the description of the present application and simplifying the description, and do not indicate or imply that the device or element indicated must have a particular direction, be constructed and operated in a particular direction, and therefore cannot be understood as limiting the present application.

[0118] In addition, the terms "first", "second" are only for descriptive purpose, and cannot be understood as indicating or implying relative importance or implicitly indicating the number of the indicated technical features. Therefore, the features defined with "first", "second" can explicitly or implicitly include one or more of the features. In the description of the present application, the meaning of "multiple" is two or more, unless otherwise explicitly specified and limited.

[0119] In the embodiments of the present application, "and / or" is only a description of the association relationship of the associated objects, which means that there can be three relationships, for example, A and / or B can mean that there are three cases of A alone, A and B together, and B alone. In addition, the character " / " in this paper generally represents that the front and rear associated objects are in an "or" relationship.

[0120] In the description of the present application, the reference to "one embodiment" or "some embodiments" and the like means that the specific features, structures or characteristics described in connection with the embodiment are included in one or more embodiments of the present application. Therefore, the statements "in one embodiment", "in some embodiments", "in other some embodiments", "in other some embodiments" and the like appearing in different places in the specification are not necessarily all referring to the same embodiment, but mean "one or more but not all embodiments", unless otherwise specifically emphasized. The terms "include", "contain", "have" and their variants mean "include but not limited to", unless otherwise specifically emphasized.

[0121] Referring to (a) and (b) of FIG. 1, an embodiment of the present application provides an electronic device 1, comprising a device shell 2000 and a camera module 1000, the camera module 1000 is arranged on the device shell 2000. The device shell 2000 is used to install the components of the electronic device 1 and provide protection, so as to reduce the damage of the components caused by external influences. The camera module 1000 is used for shooting to capture still images or videos. The electronic device 1 can also include a battery, a mainboard, a receiver, a speaker and other components, which can be arranged on the device shell 2000.

[0122] The electronic device 1 can be a mobile phone, a tablet computer, a notebook computer, a television, a vehicle-mounted device, a wearable device, a personal digital assistant, a sales terminal, a video camera, a camera, a video monitoring device and other electronic products with shooting or video recording functions. The wearable device can be a smart bracelet, a smart watch, a wireless earphone, an augmented reality (AR) device, a virtual reality (VR) device and the like.

[0123] The electronic device 1 is taken as a mobile phone for illustration. The electronic device 1 further comprises a display screen 3000, the device shell 2000 comprises a back cover 2100 and a middle frame 2200, and the display screen 3000 and the back cover 2100 are arranged on opposite sides of the middle frame 2200 respectively. The display screen 3000 and the middle frame 2200 can be connected by adhesion or the like. The middle frame 2200 and the back cover 2100 can be connected by adhesion, buckling or the like. The middle frame 2200 and the back cover 2100 can also be an integrally formed structure. The camera module 1000 can be arranged on the middle frame 2200 as a front camera module. The camera module 1000 can be arranged on the back cover 2100 as a rear camera module.

[0124] Referring to (a) and (b) of FIG. 2, an embodiment of the present application provides a camera module 1000, comprising an image sensor 200 and an optical lens 100, the light exit side of the optical lens 100 and the image sensor 200 are arranged to face each other, and the optical lens 100 is used to project light on the image sensor 200. The image sensor 200 uses the photoelectric conversion function of the photoelectric device to convert the light image projected on the photosensitive surface of the image sensor 200 into an electrical signal, so as to capture still images or videos.

[0125] The image sensor 200 can be a charge coupled device (CCD), a complementary metal oxide semiconductor (CMOS), a thin film transistor (TFT) or the like.

[0126] Referring to (a) and (b) of FIG. 2 and FIG. 3, an optical lens 100 is provided in an embodiment of the present application, which comprises a movable reflecting member 103, a driving assembly 110 and a moving lens group 105. The movable reflecting member 103 and the moving lens group 105 are arranged along a first direction X. The movable reflecting member 103 has a front end 103a close to the moving lens group 105. The driving assembly 110 is used to drive the movable reflecting member 103 to switch between a first position 103c and a second position 103d. Referring to (a) of FIG. 2, when the movable reflecting member 103 is in the first position 103c, the movable reflecting member 103 can reflect a first light L1 to the moving lens group 105. Referring to (b) of FIG. 2, when the movable reflecting member 103 is in the second position 103d, the movable reflecting member 103 can avoid a second light L2 projected to the moving lens group 105, and the front end 103a is located outside a moving area 105a of the moving lens group 105.

[0127] The movable reflecting member 103 has one or two rotation axes 103e. When the movable reflecting member 103 is in the first position 103c, at least one rotation axis 103e of the movable reflecting member 103 and the moving lens group 105 are respectively located on opposite sides of a plane where the movable reflecting member 103 is located.

[0128] Alternatively, the movable reflecting member 103 has two rotation axes, and both of the two rotation axes of the movable reflecting member 103 are located on the plane where the movable reflecting member 103 is located or on the same side of the plane where the movable reflecting member 103 is located.

[0129] Wherein, the front end 103a of the movable reflecting member 103 is an end of the movable reflecting member 103 close to the moving lens group 105. The plane where the movable reflecting member 103 is located refers to a plane where a reflecting surface of the movable reflecting member 103 is located.

[0130] In the case that the movable reflecting member 103 has one rotation axis 103e, the movable reflecting member 103 is pivoted on a predetermined component part, so that the movable reflecting member 103 can rotate around the rotation axis 103e.

[0131] In the case that the movable reflecting member 103 has two rotation axes 103e, the two positions of the movable reflecting member 103 are respectively pivoted on different component parts, so that the movable reflecting member 103 can rotate around the two rotation axes 103e.

[0132] The mobile lens group 105 can include one or more optical lenses. When the mobile lens group 105 includes multiple optical lenses, the multiple optical lenses are arranged along a predetermined optical axis direction. By moving the mobile lens group 105 along the optical axis direction thereof, zooming or focusing of the optical lens 100 can be achieved. Zooming is changing the length of the focal length of the lens and changing the size of the angle of view of the lens, to achieve the magnification and reduction of the image. Focusing is adjusting the distance between the lens and the photosensitive surface of the image sensor 200, so that the distance from the photosensitive surface to the optical center is equal to the image distance, so that the object can be clearly imaged on the image sensor 200. The mobile area 105a of the mobile lens group 105 refers to the space in which the mobile lens group 105 moves along the optical axis.

[0133] The optical lens 100 of the embodiment of the present application, as shown in (a) of FIG. 2, the movable reflecting member 103 and the mobile lens group 105 are arranged along the first direction X. When the movable reflecting member 103 is at the first position 103c, the movable reflecting member 103 and the mobile lens group 105 can form a first light path. As shown in (b) of FIG. 2, when the movable reflecting member 103 is at the second position 103d, the mobile lens group 105 can form a second light path. The driving assembly 110 can drive the movable reflecting member 103 to switch between the first position 103c and the second position 103d, so as to achieve the switching of the first light path and the second light path. The optical lens 100 multiplexes the mobile lens group 105, and when the optical lens 100 is applied to the camera module 1000, the image sensor 200 can be multiplexed. The optical lens 100 and the camera module 1000 having the optical lens 100 occupy less space and have lower use cost.

[0134] In the optical lens 100' as shown in FIG. 4, the movable reflecting member 103' can rotate around the rotation axis 103b', to achieve switching of the movable reflecting member 103' between the first position 103c' and the second position 103d'. When the movable reflecting member 103' moves to the second position 103d', the front end 103a' of the movable reflecting member 103 will enter the mobile area 105a of the mobile lens group 105, affecting the operation of the mobile lens group 105. In order to avoid the front end 103a' of the movable reflecting member 103' from affecting the operation of the mobile lens group 105, and to meet the light reflection function of the movable reflecting member 103', the length of the movable reflecting member 103' cannot be shortened to avoid the mobile lens group 105, but the distance between the movable reflecting member 103' and the mobile lens group 105 needs to be increased, so that the size of the optical lens 100' in the first direction X is larger.

[0135] Compared with the optical lens 100' shown in FIG. 4, in the optical lens 100 shown in FIG. 3, when the movable reflecting member 103 is in the first position 103c, at least one rotation axis 103e of the movable reflecting member 103 is located on the side of the movable reflecting member 103 away from the moving lens group 105, i.e., the rotation axis 103e is offset. Alternatively, the movable reflecting member 103 has two rotation axes, both of which are located on the plane of the movable reflecting member 103 or on the same side of the plane of the movable reflecting member 103. When the movable reflecting member 103 is in the second position 103d, the front end 103a of the movable reflecting member 103 is located outside the active area 105a of the moving lens group 105 and does not enter the active area 105a of the moving lens group 105, without affecting the operation of the moving lens group 105, so that the size of the optical lens 100 in the first direction X can be reduced.

[0136] In order to facilitate the description of the positions and orientations of the parts of the optical lens 100 and the camera module 1000, the optical axis direction of the moving lens group 105 is defined as the first direction X, a direction parallel to the reflecting surface of the movable reflecting member 103 is defined as the second direction Y, and the incident direction of the first light ray L1 on the movable reflecting member 103 when the movable reflecting member 103 is in the first position 103c is defined as the third direction Z. The second direction Y is perpendicular to the first direction X and the third direction Z, respectively. The first direction X and the third direction Z form a predetermined angle, which can be any value between 60° and 120°, such as 90°.

[0137] Referring to FIG. 2, the movable reflecting member 103 can have a rear end 103b opposite to the front end 103a, and the rear end 103b is arranged away from the moving lens group 105. Referring to (a) in FIG. 2, when the movable reflecting member 103 is in the first position 103c, the movable reflecting member 103 is located in a first area 103f, which can be a rectangle. Referring to (b) in FIG. 2, when the movable reflecting member 103 is in the second position 103d, the rear end 103b is located outside the first area 103f in the first direction X and is arranged away from the moving lens group 105. The space of the optical lens 100 in the first direction X can be effectively utilized, so that the size of the optical lens 100 in the first direction X can be reduced.

[0138] For example, referring to (a) in FIG. 2, when the movable reflecting member 103 is in the first position 103c, the angle between the plane of the movable reflecting member 103 and the first direction X is 45°, and the length of the movable reflecting member 103 is L. The first area 103f occupies a size of L in the first direction X and the third direction Z. Referring to (b) in FIG. 2, the movable reflecting member 103 is rotated by 45° to switch to the second position 103d, and the redundant length of the rear end 103b of the movable reflecting member 103 is L. The length of the redundant part is distributed outside the first area 103f and away from the position of the moving lens group 105. The front end 103a of the movable reflecting member 103 does not enter the active area 105a of the moving lens group 105, and the length of the optical lens 100 in the first direction X is effectively utilized.

[0139] In the setting of the movable reflecting member 103, the movable reflecting member 103 can be a plane mirror, which can reflect light and occupies a small space.

[0140] In some embodiments, as shown in (a) of FIG. 2, the plane in which the movable reflecting member 103 in the first position 103c is located and the third direction Z form a 45° angle. As shown in (b) of FIG. 2, the plane in which the movable reflecting member 103 in the second position 103d is located is perpendicular to the third direction Z. The plane in which the movable reflecting member 103 is located refers to the plane in which the reflecting surface of the movable reflecting member 103 is located.

[0141] In some embodiments, the moving lens group 105 can be driven to move along the optical axis direction by a driving motor, which can be a voice coil motor, a piezoelectric motor, a shape memory alloy motor, etc.

[0142] In order to make the movable reflecting member 103 not affect the operation of the moving lens group 105, in some embodiments, referring to FIG. 3, during the movement of the movable reflecting member 103 between the first position 103c and the second position 103d, the front end 103a of the movable reflecting member 103 is entirely located outside the active area 105a of the moving lens group 105, or the front end 103a of the movable reflecting member 103 is partially located inside the active area 105a of the moving lens group 105.

[0143] By driving the movable reflecting member 103 to move between the first position 103c and the second position 103d by the driving assembly 110, the front end 103a of the movable reflecting member 103 can be completely located outside the moving lens group 105, or a part of the front end 103a of the movable reflecting member 103 can enter the active area 105a of the moving lens group 105. When the movable reflecting member 103 is switched to the second position 103d, the front end 103a is located outside the active area 105a of the moving lens group 105, and the moving lens group 105 moves in the first direction X to realize zooming or focusing. Even if the moving lens group 105 moves to the position closest to the movable reflecting member 103, the movable reflecting member 103 does not contact the moving lens group 105, and does not affect the normal use of the moving lens group 105.

[0144] In order to make the first light L1 better reflect to the moving lens group 105 through the movable reflecting member 103 at the first position 103c, in some embodiments, referring to (a) of FIG. 2, the movable reflecting member 103 can block the second light L2 when the movable reflecting member 103 is at the first position 103c. The first light L1 is better reflected to the moving lens group 105 through the movable reflecting member 103 at the first position 103c, avoiding the second light L2 entering the light path as stray light to cause unclear imaging.

[0145] In order to make the second light L2 better project to the moving lens group 105, in some embodiments, referring to (b) of FIG. 2, the movable reflecting member 103 can block the first light L1 when the movable reflecting member 103 is at the second position 103d. The second light L2 is better projected to the moving lens group 105, avoiding the first light L1 entering the light path as stray light to cause unclear imaging.

[0146] In order to facilitate the assembly and position adjustment of the movable reflecting member 103, in some embodiments, referring to FIGS. 5-10, a base 120 and a bracket 130 are further included, the bracket 130 is movably mounted on the base 120, the movable reflecting member 103 is fixed on the bracket 130, and the driving assembly 110 is arranged on the base 120 and the bracket 130.

[0147] The movable reflecting member 103 is arranged on the bracket 130, and the bracket 130 is movably mounted on the base 120, facilitating the assembly of the movable reflecting member 103. The driving assembly 110 is arranged on the base 120 and the bracket 130, and the position of the bracket 130 is adjusted by the driving assembly 110, thereby adjusting the position of the movable reflecting member 103.

[0148] The bracket 130 is rotatably arranged relative to the base 120, and the movable reflecting member 103 is fixedly mounted on the bracket 130. The rotation axis 130a of the bracket 130 is the rotation axis 103e of the movable reflecting member 103.

[0149] For example, the bracket 130 can be rotatably connected to the base 120. The bracket 130 and the base 120 can be rotatably connected through a pin shaft 133, one of the bracket 130 and the base 120 is fixedly connected with the pin shaft 133, and the other is rotatably connected with the pin shaft 133. In addition, the bracket 130 can also be movably mounted on the base 120 in other ways.

[0150] In order to allow the second light L2 to pass through the bracket 130 when the movable reflecting member 103 is in the second position 103d, in some embodiments, referring to FIG. 9, the bracket 130 has a light-transmitting region 138, which is arranged opposite to the reflecting surface of the movable reflecting member 103. The light-transmitting region 138 of the bracket 130 is arranged opposite to the reflecting surface of the movable reflecting member 103, and can be a cavity or a transparent body. In combination with (a) of FIG. 11, when the movable reflecting member 103 is in the first position 103c, the second light L2 cannot pass through the light-transmitting region 138, but is blocked by the movable reflecting member 103. In combination with (b) of FIG. 11, when the movable reflecting member 103 is in the second position 103d, the light-transmitting region 138 is used for the second light L2 to pass through and project to the moving lens group 105.

[0151] For example, referring to FIG. 8 and FIG. 9, the bracket 130 includes a support wall 131 and a first side wall 132, the first side wall 132 is connected to the support wall 131, and the movable reflecting member 103 is arranged on the support wall 131. A cavity is formed between the support wall 131 and the first side wall 132 as the light-transmitting region 138, and the light-transmitting region 138 of the bracket 130 is arranged opposite to the reflecting surface of the movable reflecting member 103.

[0152] For example, the bracket 130 includes the first side wall 132, and the support wall 131 is not arranged, and one side of the movable reflecting member 103 is connected to the first side wall 132. The light-transmitting region 138 can be a cavity or a transparent body. The light-transmitting region 138 is arranged adjacent to the first side wall 132, and the light-transmitting region 138 of the bracket 130 is arranged opposite to the reflecting surface of the movable reflecting member 103.

[0153] There are various optional implementations when the driving assembly 110 is arranged. Eight implementations of the driving assembly 110 are exemplarily given below.

[0154] The first implementation of the driving assembly 110: referring to FIG. 10 to FIG. 12, the driving assembly 110 is a first rotary motor 111, and the movable part of the first rotary motor 111 is connected to the bracket 130. The first rotary motor 111 includes a fixed part and a movable part, and the movable part can rotate relative to the fixed part.

[0155] The first rotary motor 111 can drive the bracket 130 to rotate, and further drive the movable reflecting member 103 on the bracket 130 to rotate between the first position 103c and the second position 103d. This scheme has simple structure and high reliability. (a) and (b) of FIG. 11 respectively show the cases that the movable reflecting member 103 is in the first position 103c and the second position 103d. The rotation axis 130a of the bracket 130 is the rotation axis 103e of the movable reflecting member 103. The direction of the rotation axis 130a of the bracket 130 is also the second direction Y.

[0156] The support 130 is rotatably arranged relative to the base 120, and has a rotation axis 130a, which is arranged away from the movable lens group 105. When the movable reflector 103 is in the first position 103c, the rotation axis 130a of the support 130 is located on opposite sides of the plane in which the movable reflector 103 is located, respectively.

[0157] There are various alternative implementations for the first rotary motor 111. The first rotary motor 111 can be a voice coil motor, a piezoelectric motor, a shape memory alloy motor, etc. The following will be described taking a voice coil motor as an example.

[0158] In some embodiments, referring to FIGS. 8-11, the first rotary motor 111 includes a first magnet group 1111 and a first coil 1112, one of which is arranged on the base 120 and the other of which is arranged on the support 130. The first magnet group 1111 extends in an arc shape with the rotation axis 130a of the support 130 as an axis, and the first magnet group 1111 and the first coil 1112 are arranged opposite to each other along the second direction Y. The first magnet group 1111 and the first coil 1112 cooperate to drive the support 130 to rotate, and the second direction Y is perpendicular to the first direction X.

[0159] The first magnet group 1111 and the first coil 1112 constitute a voice coil motor. The support 130 is rotatably arranged on the base 120. The energized first coil 1112 generates a Lorentz force moment in the magnetic field of the first magnet group 1111, which can drive the support 130 to rotate relative to the base 120, thereby switching the movable reflector 103 between the first position 103c and the second position 103d. This first rotary motor 111 has a simple structure, occupies less space, and is easy to control.

[0160] In the case where the first magnet group 1111 is the fixed part of the first translation motor 112 and is arranged on the base 120, and the first coil 1112 is the movable part of the first rotary motor 111, the energized first coil 1112 generates a Lorentz force moment in the magnetic field of the first magnet group 1111, and the first coil 1112 rotates under the Lorentz force moment.

[0161] In the case where the first coil 1112 is the fixed part of the first translation motor 112 and is arranged on the base 120, and the first magnet group 1111 is the movable part of the first rotary motor 111, the energized first coil 1112 generates a Lorentz force moment in the magnetic field of the first magnet group 1111, and the first magnet group 1111 rotates under the reaction torque of the Lorentz force moment.

[0162] In setting the first magnet group 1111 and the first coil 1112, referring to FIG. 10 and FIG. 12, the first magnet group 1111 has two opposite polarity directions, the polarity directions of the first magnet group 1111 are parallel to the second direction Y, the polarity directions of the first magnet group 1111 are perpendicular to the winding plane (XZ plane, the first direction X and the third direction Z are both parallel to the XZ plane) of the first coil 1112, the first coil 1112 has two first sub-segments 1112a which are spaced apart and conductive, and the two first sub-segments 1112a and the two polarity directions of the first magnet group 1111 are oppositely arranged one by one.

[0163] When the first coil 1112 is energized, the current directions in the two first sub-segments 1112a are opposite. The two polarity directions of the first magnet group 1111 are opposite, and the two first sub-segments 1112a can be subjected to a same-direction Lorentz force moment, which can make the first coil 1112 rotate in one direction on the XZ plane relative to the first magnet group 1111. By changing the energization direction of the first coil 1112, the two first sub-segments 1112a are subjected to a same-direction Lorentz force moment, which can make the first coil 1112 rotate in the other direction on the XZ plane relative to the first magnet group 1111.

[0164] In setting the first magnet group 1111, referring to FIG. 14, the first magnet group 1111 can be two magnets 1111a, the two magnets 1111a are arranged around the rotation axis 130a of the support 130, and the polarity directions of the two magnets 1111a are opposite. The side of the first magnet group 1111 facing the first coil 1112 includes a north pole (N) and a south pole (S), and the side of the first magnet group 1111 facing away from the first coil 1112 correspondingly includes a south pole (S) and a north pole (N). In addition, the first magnet group 1111 can also be a Halbach magnet array, a single magnet made by a bipolar magnetization process, etc.

[0165] For example, referring to FIG. 12, the first magnet group 1111 has two opposite polarity directions, the first magnet group 1111 includes two magnets 1111a, the polarity direction of the upper magnet 1111a is perpendicular to the XZ plane and outward, and the polarity direction of the lower magnet 1111a is perpendicular to the XZ plane and inward. The first magnet group 1111 is installed on the base 120, and the first coil 1112 is installed on the support 130.

[0166] Referring to (a) in FIG. 12, the first coil 1112 is energized in the arrow direction, and the current directions in the two first sub-segments 1112a are opposite. Under the electromagnetic field of the first magnet group 1111, the two first sub-segments 1112a will be subjected to a counterclockwise Lorentz force moment on the XZ plane, so that the support 130 connected with the first coil 1112 rotates counterclockwise around the rotation axis 130a.

[0167] Referring to (b) of FIG. 12, the first coil 1112 is energized in the arrow direction, and the current directions in the two first sub-segments 1112a are opposite. Under the action of the magnetic field of the first magnet set 1111, the two first sub-segments 1112a will be subjected to a clockwise Lorentz force moment in the XZ plane, so as to make the bracket 130 connected with the first coil 1112 rotate clockwise about the rotation axis 130a.

[0168] In order to enhance the electromagnetic driving force formed by the first magnet set 1111 and the first coil 1112, in some embodiments, referring to FIG. 10, the side of the first magnet set 1111 away from the first coil 1112 is provided with a first magnetic conducting member 1113.

[0169] The first magnetic conducting member 1113 can improve the magnetic field lines of the first magnet set 1111, so that the first coil 1112 forms a larger electromagnetic driving force under the magnetic field of the first magnet set 1111 to drive the bracket 130 and the movable reflecting member 103 to rotate. The first magnetic conducting member 1113 can be made of a magnetic conducting material. The first magnetic conducting member 1113 can be in the form of a sheet.

[0170] Referring to FIG. 10, in the case where the first rotary motor 111 includes the first magnet set 1111 and the first coil 1112, one of the first magnet set 1111 and the first coil 1112 can be embedded in the first mounting groove 1321 of the bracket 130, and the other is embedded in the second mounting groove 1221 of the base 120. This scheme has a compact structure and occupies a small space.

[0171] For example, the bracket 130 has a first side wall 132, and the base 120 has a second side wall 122. The bracket 130 is rotatably mounted on the base 120, and the second side wall 122 and the first side wall 132 are arranged to be spaced apart along the second direction Y. The first side wall 132 has the first mounting groove 1321, and the second side wall 122 has the second mounting groove 1221.

[0172] Second implementation mode of the driving assembly 110: Referring to FIGS. 13 to 16, the driving assembly 110 includes a first translation motor 112 and a first transmission mechanism 113. The first translation motor 112 is used to drive the first transmission mechanism 113 to move so as to rotate the bracket 130. The first translation motor 112 has a fixed part and a movable part, and the movable part can translate relative to the fixed part.

[0173] The first translation motor 112 can drive the first transmission mechanism 113 to move, and the rotation of the bracket 130 is realized through the first transmission mechanism 113, so as to make the movable reflecting member 103 on the bracket 130 rotate between the first position 103c and the second position 103d.

[0174] There are various optional implementations when setting the first translation motor 112. The first translation motor 112 can be a voice coil motor, a piezoelectric motor, a shape memory alloy motor, etc. The voice coil motor is taken as an example for description below.

[0175] In some embodiments, referring to FIGS. 17-19, the first translation motor 112 includes a second magnet set 1121 and a second coil 1122, one of which is a fixed part of the first translation motor 112 and is arranged on the base 120, and the other is a movable part of the first translation motor 112. The second magnet set 1121 is arranged along the first direction X or the third direction Z, and the second magnet set 1121 and the second coil 1122 are arranged opposite to each other along the second direction Y. The second magnet set 1121 and the second coil 1122 cooperate to output linear motion. The first direction X and the third direction Z form a predetermined angle, and the second direction Y is perpendicular to the first direction X and the third direction Z, respectively.

[0176] The second magnet set 1121 and the second coil 1122 constitute a voice coil motor. The energized second coil 1122 generates a Lorentz force in the magnetic field of the second magnet set 1121, which enables the second coil 1122 to translate relative to the second magnet set 1121, and in combination with the first transmission mechanism 113, the movable reflecting element 103 is switched between the first position 103c and the second position 103d. The first translation motor 112 has a simple structure, occupies a small space, and is easy to control.

[0177] When the movable part of the first translation motor 112 needs to output linear displacement along the first direction X, the second magnet set 1121 is arranged along the first direction X. When the movable part of the first translation motor 112 needs to output linear displacement along the third direction Z, the second magnet set 1121 is arranged along the third direction Z.

[0178] In the case where the second magnet set 1121 is installed on the base 120 as the fixed part of the first translation motor 112, and the second coil 1122 is the movable part of the first translation motor 112, the energized second coil 1122 generates a Lorentz force in the magnetic field of the second magnet set 1121, and the second coil 1122 outputs linear movement under the Lorentz force.

[0179] In the case where the second coil 1122 is installed on the base 120 as the fixed part of the first translation motor 112, and the second magnet set 1121 is the movable part of the first translation motor 112, the energized second coil 1122 generates a Lorentz force in the magnetic field of the second magnet set 1121, and the second magnet set 1121 outputs linear movement under the Lorentz force.

[0180] In setting the second magnet group 1121 and the second coil 1122, referring to FIGS. 17-19, the second magnet group 1121 has two opposite polarity directions, the polarity directions of the second magnet group 1121 are parallel to the second direction Y, the polarity directions of the second magnet group 1121 are perpendicular to the winding plane (XZ plane) of the second coil 1122, the second coil 1122 has two second sub-segments 1122a which are spaced apart and conductive, and the two second sub-segments 1122a and the two polarity directions of the second magnet group 1121 are oppositely arranged one by one.

[0181] When the second coil 1122 is energized, the current directions in the two second sub-segments 1122a are opposite. The two polarity directions of the second magnet group 1121 are opposite, and the two second sub-segments 1122a can be subjected to a same direction Lorentz force, which can make the second coil 1122 translate relative to the second magnet group 1121. By changing the energization direction of the second coil 1122, the two second sub-segments 1122a are subjected to a same direction Lorentz force, which can make the second coil 1122 reversely translate relative to the second magnet group 1121.

[0182] In setting the second magnet group 1121, the second magnet group 1121 can include two magnets 1121a, the two magnets 1121a are arranged along the first direction X (or the third direction Z) and have opposite polarity directions. The side of the second magnet group 1121 facing the second coil 1122 includes a north pole (N) and a south pole (S), and the side of the second magnet group 1121 facing away from the second coil 1122 correspondingly includes a south pole (S) and a north pole (N). In addition, the second magnet group 1121 can also be a Halbach magnet array, a single magnet made by a bipolar magnetization process, etc.

[0183] For example, the second magnet group 1121 has two opposite polarity directions, the second magnet group 1121 includes two magnets 1121a, the polarity direction of the left magnet 1121a is perpendicular to the XZ plane and outward, and the polarity direction of the right magnet 1121a is perpendicular to the XZ plane and inward. The second coil 1122 is installed on the base 120 as a fixed part of the first translation motor 112, and the second magnet group 1121 is installed as a movable part of the first translation motor 112.

[0184] Referring to (a) in FIG. 19, the second coil 1122 is energized in the arrow direction, and the current directions in the two second sub-segments 1122a are opposite. Under the action of the magnetic field of the second magnet group 1121, the two second sub-segments 1122a will be subjected to a Lorentz force in the first direction X to the left, the second coil 1122 is a fixed part of the first translation motor 112, the second magnet group 1121 is subjected to a counterforce to the right, and the second magnet group 1121 translates along the first direction X to the right.

[0185] Referring to (b) of FIG. 19, the second coil 1122 is energized in the direction of the arrow, and the current directions in the two second sub-segments 1122a are opposite. Under the action of the magnetic field of the second magnet set 1121, the two second sub-segments 1122a are subjected to the Lorentz force in the first direction X to the right. The second coil 1122 serves as the fixed part of the first translation motor 112, and the second magnet set 1121 is subjected to the reaction force to the left, so that the second magnet set 1121 is translated in the first direction X to the left.

[0186] In order to enhance the electromagnetic driving force formed by the second magnet set 1121 and the second coil 1122, in some embodiments, referring to FIGS. 17 and 18, the side of the second magnet set 1121 away from the second coil 1122 is provided with a second magnetic conducting member 1123.

[0187] The second magnetic conducting member 1123 can improve the magnetic flux lines of the second magnet set 1121, so that the second coil 1122 forms a larger electromagnetic driving force under the magnetic field of the second magnet set 1121 to drive the first transmission mechanism 113 to move. The second magnetic conducting member 1123 can be made of a magnetic conducting material. The second magnetic conducting member 1123 can be in the form of a sheet.

[0188] When the first transmission mechanism 113 is arranged, referring to FIGS. 13, 16-18, the first transmission mechanism 113 includes a first crank 113a and a first sliding member 113b. The first sliding member 113b is slidingly installed on the base 120 in the first direction X. The movable part of the first translation motor 112 can move in the first direction X and is connected with the first sliding member 113b. One end of the first crank 113a is pivotally connected with the base 120, and the other end of the first crank 113a is pivotally connected with the support 130. The support 130 is pivotally connected with the first sliding member 113b.

[0189] FIGS. 13(a) and (b) are schematic diagrams of the driving assembly and the movable reflecting member when the movable reflecting member is in the first position and the second position, respectively. In FIG. 13, the support 130 is represented by two fixedly connected rods, and the black triangular area between the two rods represents the fixed connection between the two rods. In actual applications, the specific shape of the support 130 is not limited. For example, two T-shaped rods can be replaced by a triangle. As shown in FIG. 17, the support 130 can include a support wall 131 and a first side wall 132 connected with each other. The support wall 131 is in the shape of a rectangle, and the first side wall 132 is generally in the shape of a triangle. In addition, the support 130 can also be arranged in other shapes.

[0190] FIGS. 19(a) and (b) are schematic diagrams of the optical lens when the movable reflecting member is in the first position and the second position, respectively. FIG. 13(a) and FIG. 19(a) show the case where the movable reflecting member is in the first position. FIG. 13(b) and FIG. 19(b) show the case where the movable reflecting member is in the second position.

[0191] The base 120, the first slider 113b, the bracket 130 and the first crank 113a constitute a crank slider mechanism, the base 120 as a frame, the first slider 113b as a slider, the bracket 130 as a connecting rod, and the first crank 113a connected between the base 120 and the bracket 130. The first crank 113a can rotate relative to the base 120 about the rotation axis 113a1.

[0192] The bracket 130 has two rotation axes, i.e. the rotation axis 130b of the bracket 130 relative to the first slider 113b and the rotation axis 130c of the bracket 130 relative to the first crank 113a, which are also the two rotation axes 103e of the movable mirror 103. When the movable mirror 103 is in the first position 103c, the rotation axis 130b of the bracket 130 and the moving lens group 105 are located on opposite sides of the plane in which the movable mirror 103 is located. The rotation axis 130c can be located in the plane in which the movable mirror 103 is located; or, when the movable mirror 103 is in the first position 103c, the rotation axis 130c is located on the side of the plane in which the movable mirror 103 is located away from the moving lens group 105.

[0193] When the first translation motor 112 drives the first slider 113b to translate along the first direction X on the base 120, the bracket 130 and the first crank 113a follow the movement, and the bracket 130 can rotate relative to the base 120, so that the movable mirror 103 on the bracket 130 can switch between the first position 103c and the second position 103d.

[0194] As shown in (a) of FIG. 13, the movable mirror 103 is in the first position 103c. The first translation motor 112 drives the first slider 113b to translate to the right, and the first crank 113a and the bracket 130 follow the movement, and the bracket 130 and the movable mirror 103 rotate counterclockwise, as shown in (b) of FIG. 13, so that the movable mirror 103 switches to the second position 103d. The first translation motor 112 drives the first slider 113b to move reversely, so that the movable mirror 103 can switch from the second position 103d to the first position 103c.

[0195] When the positions of the first crank 113a and the bracket 130 are set, the rotation axis 113a1 of the first crank 113a relative to the base 120 is located between the two rotation axes (130b, 130c) of the bracket 130, so that the movable mirror 103 can switch between the first position 103c and the second position 103d, and the first crank 113a and the bracket 130 occupy a smaller space and have a compact structure.

[0196] One end of the first crank 113a is pivotally connected to the base 120, and the other end of the first crank 113a is pivotally connected to the support 130, and the support 130 is pivotally connected to the first sliding piece 113b. The pivotally connected structure between two parts can be achieved by a shaft hole structure, that is, one part is provided with a shaft, and the other part is provided with a hole, and the shaft hole is matched to achieve the rotation connection between the two parts.

[0197] Referring to FIGS. 17 and 18, a guide structure extending along the first direction X can be arranged between the base 120 and the first sliding piece 113b. For example, the base 120 is provided with a slide column 125 extending along the first direction X, and the first sliding piece 113b is provided with a slide groove 113b1 extending along the first direction X, and the slide groove 113b1 and the slide column 125 are matched to achieve the sliding installation of the first sliding piece 113b on the base 120.

[0198] Referring to FIGS. 17 and 18, in the case that the first translation motor 112 includes the second magnet group 1121 and the second coil 1122, one of the second magnet group 1121 and the second coil 1122 can be embedded in the second mounting groove 1221 of the base 120, and the other one can be embedded in the third mounting groove 113b2 of the first sliding piece 113b. This scheme has a compact structure and occupies a small space.

[0199] When the first crank 113a and the first sliding piece 113b are arranged, referring to FIGS. 16 to 18, the first crank 113a and the first sliding piece 113b can be arranged in pairs. The base 120 includes a connecting wall 121 and a pair of second side walls 122, and the pair of second side walls 122 are respectively connected to the opposite two side edges of the connecting wall 121. The support 130 includes a supporting wall 131 and a pair of first side walls 132, and the pair of first side walls 132 are respectively connected to the opposite two side edges of the supporting wall 131, and the movable reflecting element 103 is arranged on the supporting wall 131. The support 130 is movably installed in the base 120.

[0200] The first side wall 132, the second side wall 122, the first crank 113a and the first sliding piece 113b are arranged in groups. In the same group, the second side wall 122 and the first side wall 132 are arranged at intervals, one end of the first crank 113a is pivotally connected to the first side wall 132, the other end of the first crank 113a is pivotally connected to the second side wall 122, the first side wall 132 is pivotally connected to the first sliding piece 113b, and the first sliding piece 113b is slidingly installed on the connecting wall 121. This scheme enables the support 130 and the movable reflecting element 103 to stably move relative to the base 120.

[0201] The third implementation of the driving assembly 110: referring to (a) and (b) of FIG. 20, the driving assembly 110 includes a first translation motor 112 and a first transmission mechanism 113, the first transmission mechanism 113 includes a first connecting rod 113c and a second sliding piece 113d, the second sliding piece 113d is slidingly installed on the base 120 along the first direction X, a movable part of the first translation motor 112 is movable along the first direction X and is connected with the second sliding piece 113d, the bracket 130 is pivotally connected with the base 120, one end of the first connecting rod 113c is pivotally connected with the second sliding piece 113d, and the other end of the first connecting rod 113c is pivotally connected with the bracket 130.

[0202] The base 120, the bracket 130, the second sliding piece 113d and the first connecting rod 113c can constitute a slider-crank mechanism, the base 120 serves as a frame, the bracket 130 serves as a crank, the second sliding piece 113d serves as a slider, and the first connecting rod 113c is connected between the bracket 130 and the second sliding piece 113d.

[0203] The bracket 130 has two rotation axes, i.e., a rotation axis 130b of the bracket 130 relative to the base 120 and a rotation axis 130c of the bracket 130 relative to the first connecting rod 113c, which are also two rotation axes 103e of the movable reflecting member 103. When the movable reflecting member 103 is in the first position 103c, the rotation axis 130b of the bracket 130 and the moving lens group 105 are located on opposite sides of the plane in which the movable reflecting member 103 is located. The rotation axis 130c can be located in the plane in which the movable reflecting member 103 is located; or, when the movable reflecting member 103 is in the first position 103c, the rotation axis 130c can be located on a side of the plane in which the movable reflecting member 103 is located away from the moving lens group 105.

[0204] When the first translation motor 112 drives the second sliding piece 113d to translate along the first direction X on the base 120, the first connecting rod 113c and the bracket 130 follow the movement, and the bracket 130 can rotate, so that the movable reflecting member 103 on the bracket 130 can switch between the first position 103c and the second position 103d.

[0205] As shown in (a) of FIG. 20, the movable reflecting member 103 is in the first position 103c. The first translation motor 112 drives the second sliding piece 113d to translate to the right, the first connecting rod 113c and the bracket 130 follow the movement, and the bracket 130 and the movable reflecting member 103 rotate counterclockwise, as shown in (b) of FIG. 20, so that the movable reflecting member 103 switches to the second position 103d. The first translation motor 112 drives the second sliding piece 113d to move reversely, so that the movable reflecting member 103 can switch from the second position 103d to the first position 103c.

[0206] A guide structure extending along the first direction X can be arranged between the base 120 and the second sliding member 113d. For example, the base 120 is provided with a slide post 125 extending along the first direction X, and the second sliding member 113d is provided with a slide groove extending along the first direction X, the slide groove and the slide post 125 are in sliding fit, so as to achieve sliding installation of the second sliding member 113d on the base 120.

[0207] In the case that the first translation motor 112 comprises the second magnet group 1121 and the second coil 1122, one of the second magnet group 1121 and the second coil 1122 can be embedded on the base 120, and the other one can be embedded on the second sliding member 113d. This scheme is compact in structure and occupies less space.

[0208] The position of the second sliding member 113d can be set as required. For example, referring to (a) and (b) of FIG. 20, the first lens group 101 and the movable mirror 103 are arranged opposite to each other along the third direction Z, and the second sliding member 113d can be arranged at a position away from the first lens group 101. In FIG. 20, the support 130 is represented by two fixedly connected rods, and the black triangular area between the two rods represents the fixed connection of the two rods. In actual application, the specific shape of the support 130 is not limited. The rotation axis 130b of the support 130 relative to the base 120, the rear end 103b of the first movable mirror 103, the rotation axis 130c of the support 130 relative to the first connecting rod 113c, and the front end 103a of the first movable mirror 103 are sequentially arranged.

[0209] Alternatively, referring to (a) and (b) of FIG. 21, the first lens group 101 and the movable mirror 103 are arranged opposite to each other along the third direction Z, and the second sliding member 113d can be arranged at a position close to the first lens group 101. The rotation axis 130b of the support 130 relative to the base 120 and the rear end 103b of the first movable mirror 103 are arranged adjacent to each other. The rear end 103b of the first movable mirror 103, the rotation axis 130c of the support 130 relative to the first connecting rod 113c, and the front end 103a of the first movable mirror 103 are sequentially arranged.

[0210] The support 130 has two rotation axes, which are the rotation axis 130b of the support 130 relative to the base 120 and the rotation axis 130c of the support 130 relative to the first connecting rod 113c, and are also the two rotation axes 103e of the movable mirror 103. The two rotation axes (130b, 130c) of the support 130 can both be located in the plane where the movable mirror 103 is located. Alternatively, when the movable mirror 103 is in the first position 103c, at least one of the rotation axis 130b and the rotation axis 130c of the support 130 can be located on the side away from the moving lens group 105 of the plane where the movable mirror 103 is located.

[0211] The fourth implementation manner of the driving assembly 110: referring to (a) and (b) of FIG. 22, the driving assembly 110 comprises a first translation motor 112 and a first transmission mechanism 113, the first transmission mechanism 113 comprises a second crank 113e and a third sliding piece 113f, the third sliding piece 113f is slidingly installed on the base 120 along a third direction Z, a movable part of the first translation motor 112 is movable along the third direction Z and is connected with the third sliding piece 113f, one end of the second crank 113e is pivotally connected with the base 120, the other end of the second crank 113e is pivotally connected with a support 130, the support 130 is pivotally connected with the third sliding piece 113f, and a predetermined included angle is formed between the first direction X and the third direction Z.

[0212] The base 120, the second crank 113e, the third sliding piece 113f and the support 130 can constitute a crank slider mechanism, the base 120 serves as a frame, the third sliding piece 113f serves as a slider, the support 130 serves as a connecting rod, and the second crank 113e is connected between the base 120 and the support 130.

[0213] The support 130 has two rotation axes, i.e., a rotation axis 130b of the support 130 relative to the third sliding piece 113f and a rotation axis 130c of the support 130 relative to the second crank 113e, which are also two rotation axes 103e of the movable mirror 103. The two rotation axes (130b, 130c) of the support 130 can be located in the plane where the movable mirror 103 is located. Alternatively, at least one of the rotation axis 130b and the rotation axis 130c of the support 130 can be located on a side of the plane where the movable mirror 103 is located away from the moving lens group 105 when the movable mirror 103 is in the first position 103c.

[0214] When the first translation motor 112 drives the third sliding piece 113f to move along the third direction Z on the base 120, the support 130 and the second crank 113e follow the movement, and the support 130 can rotate, so that the movable mirror 103 on the support 130 can switch between the first position 103c and the second position 103d.

[0215] As shown in (a) of FIG. 22, the movable mirror 103 is in the first position 103c. The first translation motor 112 drives the third sliding piece 113f to move upward, the support 130 and the second crank 113e follow the movement, and the support 130 and the movable mirror 103 rotate counterclockwise, as shown in (b) of FIG. 22, so that the movable mirror 103 switches to the second position 103d. The first translation motor 112 drives the third sliding piece 113f to move reversely, so that the movable mirror 103 can switch from the second position 103d to the first position 103c.

[0216] The fifth implementation manner of the driving assembly 110: referring to (a) and (b) of FIG. 23, the driving assembly 110 comprises a first translation motor 112 and a first transmission mechanism 113, the first transmission mechanism 113 comprises a second connecting rod 113g and a fourth sliding piece 113h, the fourth sliding piece 113h is slidingly installed on the base 120 along the first direction X, a movable part of the first translation motor 112 is movable along the first direction X and is connected with the fourth sliding piece 113h, two ends of the second connecting rod 113g are respectively pivotally connected with the fourth sliding piece 113h and the support 130; the support 130 has a first sliding part 135 and a second sliding part 136 which are spaced apart, the first sliding part 135 is slidingly installed on the base 120, the second sliding part 136 is slidingly installed on the base 120, a sliding route 135a of the first sliding part 135 and a sliding route 136a of the second sliding part 136 are different.

[0217] When the first translation motor 112 drives the fourth sliding piece 113h to translate along the first direction X on the base 120, the second connecting rod 113g and the support 130 move together, the first sliding part 135 and the second sliding part 136 of the support 130 are respectively slidingly installed on the base 120, the sliding routes (135a, 136a) of the first sliding part 135 and the second sliding part 136 are different, the support 130 is rotatable, so that the movable reflecting element 103 on the support 130 can switch between the first position 103c and the second position 103d.

[0218] As shown in (a) of FIG. 23, the movable reflecting element 103 is in the first position 103c. The first translation motor 112 drives the fourth sliding piece 113h to translate to the right, the second connecting rod 113g and the support 130 move together, the support 130 and the movable reflecting element 103 rotate counterclockwise, as shown in (b) of FIG. 23, so that the movable reflecting element 103 switches to the second position 103d. The first translation motor 112 drives the fourth sliding piece 113h to move reversely, so that the movable reflecting element 103 can switch from the second position 103d to the first position 103c.

[0219] The sliding route 135a of the first sliding part 135 and the sliding route 136a of the second sliding part 136 both determine the posture of the support 130 during switching between the first position 103c and the second position 103d.

[0220] The first sliding part 135 (the second sliding part 136) can be a columnar structure, which is in sliding fit with the first sliding groove 126 (the second sliding groove 127). The base 120 can have the first sliding groove 126 for the first sliding part 135 to slide, and the second sliding groove 127 for the second sliding part 136 to slide. The extension route of the first sliding groove 126 is the sliding route 135a of the first sliding part 135. The extension route of the second sliding groove 127 is the sliding route 136a of the second sliding part 136. The shapes of the first sliding groove 126 and the second sliding groove 127 can be set as straight lines, arcs or other shapes.

[0221] The positions of the first sliding part 135 and the second sliding part 136 can be understood as two rotation axes of the bracket 130, which are the rotation axis 130b corresponding to the first sliding part 135, the rotation axis 130c corresponding to the second sliding part 136, and also two rotation axes 103e of the movable reflecting member 103. The two rotation axes (130b, 130c) of the bracket 130 can be located on the plane where the movable reflecting member 103 is located. Alternatively, at least one of the rotation axis 130b and the rotation axis 130c of the bracket 130 is located on the side away from the moving lens group 105 of the plane where the movable reflecting member 103 is located when the movable reflecting member 103 is in the first position 103c.

[0222] The sixth implementation manner of the driving assembly 110: referring to FIGS. 24-26, the driving assembly 110 includes the first translation motor 112 and the first transmission mechanism 113, the bracket 130 is rotationally connected to the base 120, the first transmission mechanism 113 includes a gear 113i and a rack 113j, the gear 113i is fixed to the bracket 130, the rotation axis 130a of the bracket 130 relative to the base 120 is coaxially arranged with the gear 113i, and the rack 113j is fixed to the movable part of the first translation motor 112, the gear 113i and the rack 113j are in meshing engagement.

[0223] When the first translation motor 112 drives the rack 113j to translate, the gear 113i and the rack 113j are in meshing engagement, the gear 113i is rotated, the bracket 130 is rotated relative to the base 120, and the movable reflecting member 103 on the bracket 130 can be switched between the first position 103c and the second position 103d.

[0224] As shown in (a) of FIG. 26, the movable reflecting member 103 is in the first position 103c. The first translation motor 112 drives the rack 113j to translate to the right, the gear 113i rotates counterclockwise, the bracket 130 and the movable reflecting member 103 rotate counterclockwise, as shown in (b) of FIG. 26, so that the movable reflecting member 103 is switched to the second position 103d. The first translation motor 112 drives the rack 113j to move reversely, so that the movable reflecting member 103 can be switched from the second position 103d to the first position 103c.

[0225] The bracket 130 is arranged to rotate relative to the base 120, and has a rotation axis 130a. The rotation axis 130a of the bracket 130 is arranged away from the movable lens group 105. When the movable reflecting member 103 is in the first position 103c, the rotation axis 130a of the bracket 130 and the movable lens group 105 are located on opposite sides of the plane in which the movable reflecting member 103 is located.

[0226] The third to sixth drive assemblies 110 described above can be implemented by referring to the first translation motor 112 of the second drive assembly 110.

[0227] The seventh drive assembly 110 is implemented as follows: Referring to (a) and (b) of FIG. 27, the drive assembly 110 includes a second rotation motor 114 and a second transmission mechanism 115. The second rotation motor 114 is configured to drive the second transmission mechanism 115 to rotate the bracket 130. The second rotation motor 114 has a fixed portion and a movable portion, and the movable portion is configured to rotate relative to the fixed portion.

[0228] The second rotation motor 114 is configured to drive the second transmission mechanism 115 to rotate the bracket 130, thereby switching the movable reflecting member 103 on the bracket 130 between the first position 103c and the second position 103d.

[0229] The bracket 130 is arranged to rotate relative to the base 120, and has a rotation axis 130a. The rotation axis 130a of the bracket 130 is arranged away from the movable lens group 105. When the movable reflecting member 103 is in the first position 103c, the rotation axis 130a of the bracket 130 and the movable lens group 105 are located on opposite sides of the plane in which the movable reflecting member 103 is located.

[0230] When the second transmission mechanism 115 is arranged, the bracket 130 is rotatably connected to the base 120. The second transmission mechanism 115 includes a third crank 115a and a fifth sliding member 115b. The fifth sliding member 115b is slidingly arranged on the bracket 130. One end of the third crank 115a is fixed to the movable portion of the second rotation motor 114, and the other end of the third crank 115a is pivotally connected to the fifth sliding member 115b.

[0231] When the second rotary motor 114 drives the third crank 115a to rotate, the fifth sliding member 115b and the bracket 130 follow the movement, and the bracket 130 can rotate relative to the base 120, so that the movable mirror 103 on the bracket 130 can switch between the first position 103c and the second position 103d.

[0232] In FIG. 27, the bracket 130 is represented by two fixedly connected rods, and the black triangular area between the two rods represents the fixed connection between the two rods. In actual applications, the specific shape of the bracket 130 is not limited.

[0233] As shown in (a) of FIG. 27, the movable mirror 103 is in the first position 103c. The second rotary motor 114 drives the third crank 115a to rotate counterclockwise, and the fifth sliding member 115b and the bracket 130 follow the movement. The bracket 130 and the movable mirror 103 rotate counterclockwise, as shown in (b) of FIG. 27, so that the movable mirror 103 switches to the second position 103d. The second rotary motor 114 drives the third crank 115a to move reversely, which can realize the switching of the movable mirror 103 from the second position 103d to the first position 103c.

[0234] The fifth sliding member 115b can have a straight guide groove, and the bracket 130 can have a straight guide rail. The straight guide rail and the straight guide groove are in sliding fit, so that the fifth sliding member 115b is slidingly installed on the bracket 130.

[0235] The seventh driving assembly 110 can refer to the embodiment of the first rotary motor 111 in the first driving assembly 110 when the second rotary motor 114 is provided. The second rotary motor 114 can drive the second transmission mechanism 115 to move to rotate the bracket 130.

[0236] The implementation mode of the eighth driving assembly 110: referring to (a) and (b) of FIG. 28, the driving assembly 110 includes a second translation motor 116, a third translation motor 117, a sixth sliding member 118, and a seventh sliding member 119. The sixth sliding member 118 is slidingly installed on the base 120 along the first direction X, and the second translation motor 116 is used to drive the sixth sliding member 118 to move along the first direction X. The seventh sliding member 119 is slidingly installed on the base 120 along the third direction Z, and the third translation motor 117 is used to drive the seventh sliding member 119 to move along the third direction Z. The bracket 130 has a first end 130d and a second end 130e distributed relative to each other. The first end 130d is pivotally connected to the sixth sliding member 118, and the second end 130e is pivotally connected to the seventh sliding member 119. The first direction X and the third direction Z form a predetermined included angle.

[0237] The movement of the bracket 130 is achieved by driving the two ends of the bracket 130 to move in different directions by the second translation motor 116 and the third translation motor 117, so that the movable reflecting element 103 on the bracket 130 can be switched between the first position 103c and the second position 103d.

[0238] As shown in (a) of FIG. 28, the movable reflecting element 103 is in the first position 103c. The second translation motor 116 drives the sixth sliding piece 118 to move leftward along the first direction X, and the third translation motor 117 drives the seventh sliding piece 119 to move upward along the second direction Y. As shown in (b) of FIG. 28, the bracket 130 can be switched from the inclined position to the horizontal position, and the movable reflecting element 103 can be switched from the first position 103c to the second position 103d. The second translation motor 116 drives the sixth sliding piece 118 to move rightward, and the third translation motor 117 drives the seventh sliding piece 119 to move downward, so that the movable reflecting element 103 can be switched from the second position 103d to the first position 103c.

[0239] The sixth sliding piece 118 can have a first guide groove along the first direction X, and the base 120 can have a first guide rail 128 along the first direction X. The first guide rail 128 and the first guide groove are in sliding fit, so that the sixth sliding piece 118 is slidably installed on the base 120 along the first direction X.

[0240] The seventh sliding piece 119 can have a second guide groove along the third direction Z, and the base 120 can have a second guide rail 129 along the third direction Z. The second guide rail 129 and the second guide groove are in sliding fit, so that the seventh sliding piece 119 is slidably installed on the base 120 along the third direction Z.

[0241] The first end 130d and the second end 130e of the bracket 130 can be understood as two rotation axes of the bracket 130, which are the rotation axis 130b corresponding to the first end 130d and the rotation axis 130c corresponding to the second end 130e, and are also two rotation axes 103e of the movable reflecting element 103. The two rotation axes (130b, 130c) of the bracket 130 can be located on the plane where the movable reflecting element 103 is located. Alternatively, when the movable reflecting element 103 is in the first position 103c, at least one of the rotation axis 130b and the rotation axis 130c of the bracket 130 is located on the side of the plane where the movable reflecting element 103 is located away from the moving lens group 105.

[0242] The eighth driving assembly 110 can refer to the first translation motor 112 in the second driving assembly 110 for implementation when the second translation motor 116 and the third translation motor 117 are provided.

[0243] In order to limit the position of the bracket 130 in the first position 103c, in some embodiments, referring to FIG. 8 and FIG. 9, the optical lens 100 further comprises a first magnetic assembly 150 for moving the movable reflecting member 103 adjacent to the first position 103c to the first position 103c, the first magnetic assembly 150 comprises a first magnetic member 151 arranged on the base 120 and a second magnetic member 152 arranged on the bracket 130, the first magnetic member 151 and the second magnetic member 152 can be magnetically attracted. FIG. 6 shows the relative positions of the bracket 130 and the base 120 when the movable reflecting member 103 is in the first position 103c.

[0244] One of the first magnetic member 151 and the second magnetic member 152 can be a magnet, and the other one is made of magnetic conductive material (such as stainless steel). Alternatively, both the first magnetic member 151 and the second magnetic member 152 are magnets, so that the first magnetic member 151 and the second magnetic member 152 form a magnetic attraction force when they are close to each other. When the movable reflecting member 103 is adjacent to the first position 103c, the bracket 130 is moved under the magnetic attraction force between the first magnetic member 151 and the second magnetic member 152 until the movable reflecting member 103 is in the first position 103c, and the movable reflecting member 103 on the bracket 130 is kept in the first position 103c.

[0245] For example, the bracket 130 comprises a support wall 131 and a first side wall 132 connected to the support wall 131, and the movable reflecting member 103 is arranged on the support wall 131. The base 120 comprises a connecting wall 121 and a second side wall 122 connected to the connecting wall 121. The first magnetic member 151 can be arranged on the connecting wall 121 and / or the second side wall 122 of the base 120, and the second magnetic member 152 can be arranged on the corresponding position of the first side wall 132 of the bracket 130, and the first magnetic member 151 and the second magnetic member 152 can be magnetically attracted.

[0246] In order to limit the position of the bracket 130 in the second position 103d, in some embodiments, referring to FIG. 6 to FIG. 8, the optical lens 100 further comprises a second magnetic assembly 160 for moving the movable reflecting member 103 adjacent to the second position 103d to the second position 103d, the second magnetic assembly 160 comprises a third magnetic member 161 arranged on the base 120 and a fourth magnetic member 162 arranged on the bracket 130, the third magnetic member 161 and the fourth magnetic member 162 can be magnetically attracted. FIG. 7 shows the relative positions of the bracket 130 and the base 120 when the movable reflecting member 103 is in the second position 103d.

[0247] One of the third magnetic member 161 and the fourth magnetic member 162 can be a magnet, and the other can be made of a magnetic conductive material (e.g., stainless steel). Alternatively, both the third magnetic member 161 and the fourth magnetic member 162 can be magnets, such that the third magnetic member 161 and the fourth magnetic member 162 generate a magnetic attraction force when they are close to each other. When the movable reflecting member 103 is adjacent to the second position 103d, the bracket 130 is moved under the magnetic attraction force between the third magnetic member 161 and the fourth magnetic member 162 until the movable reflecting member 103 is located at the second position 103d, and the movable reflecting member 103 on the bracket 130 is kept at the second position 103d.

[0248] For example, the bracket 130 includes a support wall 131 and a first side wall 132 connected to the support wall 131, and the movable reflecting member 103 is arranged on the support wall 131. The base 120 includes a connecting wall 121 and a second side wall 122 connected to the connecting wall 121. The third magnetic member 161 can be directly arranged on the second side wall 122 of the base 120, and the fourth magnetic member 162 can be arranged on the first side wall 132 of the bracket 130 close to the side edge of the support wall 131. Alternatively, the third magnetic member 161 can also be indirectly arranged on the second side wall 122 of the base 120, for example, the first lens group 101 and the movable reflecting member 103 are arranged opposite to each other along the third direction Z, the housing 1011 of the first lens group 101 is arranged on the second side wall 122, the third magnetic member 161 is arranged on the housing 1011 of the first lens group 101, and the fourth magnetic member 162 is arranged on the first side wall 132 of the bracket 130.

[0249] In order to accurately position the movable reflecting member 103 at the first position 103c or the second position 103d, in some embodiments, referring to FIGS. 8-10, the driving assembly 110 can drive the movable reflecting member 103 to move between the first position 103c and the second position 103d, and the movable reflecting member 103 and the bracket 130 move synchronously.

[0250] The base 120 has a first outward protrusion 123, and the side of the bracket 130 facing the first outward protrusion 123 has a second outward protrusion 137. When the first outward protrusion 123 and the second outward protrusion 137 abut, the bracket 130 cannot continue to move, and the movable reflecting member 103 is limited to the first position 103c. By using the abutting mode of the first outward protrusion 123 and the second outward protrusion 137, the contact area of the bracket 130 and the base 120 is small, which facilitates accurate positioning of the bracket 130 on the base 120 and accurate positioning of the movable reflecting member 103 at the first position 103c. FIG. 6 shows the relative positions of the bracket 130 and the base 120 when the movable reflecting member 103 is at the first position 103c.

[0251] The base 120 has a third protruding portion 124. When the third protruding portion 124 abuts against the bracket 130, the bracket 130 cannot continue to move, and the movable reflecting element 103 is limited to the second position 103d. The third protruding portion 124 and the bracket 130 abut against each other, so that the contact area between the bracket 130 and the base 120 is small, the bracket 130 is accurately positioned on the base 120, and the movable reflecting element 103 is accurately positioned at the second position 103d. FIG. 7 shows the relative positions of the bracket 130 and the base 120 when the movable reflecting element 103 is at the second position 103d.

[0252] When the bracket 130 is at an intermediate position between the first position 103c and the second position 103d, the first protruding portion 123 and the second protruding portion 137 do not abut against each other, and the third protruding portion 124 and the bracket 130 also do not abut against each other.

[0253] For example, referring to FIGS. 8-10, the bracket 130 includes a support wall 131 and a first side wall 132 connected to the support wall 131, and the movable reflecting element 103 is arranged on the support wall 131. The base 120 includes a connecting wall 121 and a second side wall 122 connected to the connecting wall 121. The second side wall 122 and the first side wall 132 are arranged to face each other in the second direction Y.

[0254] The first protruding portion 123 can be arranged on the connecting wall 121, and the second protruding portion 137 can be arranged on the support wall 131 and / or the first side wall 132. When the movable reflecting element 103 is at the first position 103c, the first protruding portion 123 and the second protruding portion 137 abut against each other. The first protruding portion 123 and the second protruding portion 137 can be arranged in the same number, for example, one or more.

[0255] The third protruding portion 124 can be arranged on the second side wall 122. When the movable reflecting element 103 is at the second position 103d, the first side wall 132 of the bracket 130 and the third protruding portion 124 abut against each other. The third protruding portion 124 and the first side wall 132 can be arranged in the same number, for example, one or two.

[0256] In order to accurately mount the movable reflecting element 103 on the bracket 130, in some embodiments, referring to FIGS. 8-10, the bracket 130 is provided with an elastic frame 140, which includes a bending portion 141 and a support portion 142. One end of the bending portion 141 is connected to the support portion 142, and the other end of the bending portion 141 is fixed to the bracket 130. The movable reflecting element 103 is fixed to the support portion 142.

[0257] The bending portion 141 of the elastic frame 140 is arranged on the support frame 130, and the movable reflecting member 103 is arranged on the supporting portion 142 of the elastic frame 140. The bending portion 141 is elastically deformable. In the case that the point adhesive 143 is used to assemble the bending portion 141 and the support frame 130 and the supporting portion 142 and the movable reflecting member 103, the point adhesive 143 is solidified by heating, so that the support frame 130 and the elastic frame 140 are reliably connected, and the elastic frame 140 and the movable reflecting member 103 are reliably connected. The elastic frame 140 is arranged between the support frame 130 and the movable reflecting member 103, so that the position of the movable reflecting member 103 is not changed after being heated, the movable reflecting member 103 is accurately mounted on the support frame 130, as shown in (a) of FIG. 2, so that the first light L1 is reflected by the movable reflecting member 103 to the image sensor 200 in a predetermined direction, and the camera module 1000 with the optical lens 100 can have high-quality imaging.

[0258] When the elastic frame 140 is arranged, the bending portion 141 can be bent along the second direction Y to form a U-shaped, S-shaped or other-shaped bending structure. The first direction X, the third direction Z and the second direction Y can be perpendicular to each other. The supporting portion 142 can be in a sheet shape, and is used to connect the back surface of the movable reflecting member 103.

[0259] Referring to FIGS. 8 and 9, the support frame 130 has a receiving groove 1311, and the elastic frame 140 and the movable reflecting member 103 are arranged in the receiving groove 1311, so that the assembly structure size of the movable reflecting member 103 and the support frame 130 can be reduced.

[0260] The elastic frames 140 are arranged in pairs on the support frame 130, and the ends of the bending portions 141 away from the supporting portions 142 are fixed on the wall surface of the receiving groove 1311. The supporting portions 142 of the elastic frames 140 arranged in pairs are oppositely arranged, and the supporting portions 142 are connected to the back surface of the movable reflecting member 103, so that the movable reflecting member 103 is accurately mounted on the support frame 130.

[0261] In other embodiments, the elastic frame 140 can not be arranged on the support frame 130, and the movable reflecting member 103 is directly fixed on the support frame 130.

[0262] In order to stably move the support frame 130 relative to the base 120, in some embodiments, referring to FIGS. 8 to 10, a contact portion 134 is arranged between the support frame 130 and the base 120 along the second direction Y, and the second direction Y is perpendicular to the first direction X.

[0263] The contact portion 134 is arranged between the support 130 and the base 120, which can reduce the friction between the support 130 and the base 120, limit the support 130 on the base 120 in the second direction Y, and facilitate the stable movement of the support 130 relative to the base 120, and reduce the shaking of the support 130 during movement. The contact portion 134 can be a ball or a protrusion. The contact portion 134 can be arranged on the support 130 or the base 120.

[0264] For example, referring to FIGS. 8-10, the contact portion 134 is a ball arranged on the support 130. During the movement of the support 130 relative to the base 120, the ball and the base 120 roll and rub, which can facilitate the stable movement of the support 130 relative to the base 120.

[0265] For example, the contact portion 134 is a protrusion arranged on the base 120. During the movement of the support 130 relative to the base 120, the protrusion and the support 130 slide and rub, which can facilitate the stable movement of the support 130 relative to the base 120.

[0266] When the base 120 and the support 130 are arranged, referring to FIGS. 8-10, the support 130 has a pair of first side walls 132 arranged at intervals, the base 120 has a pair of second side walls 122 arranged at intervals, the support 130 is movably arranged in the base 120, the pair of first side walls 132 and the pair of second side walls 122 are arranged one by one, and the corresponding second side wall 122 and the first side wall 132 are respectively provided with the contact portion 134 along the second direction Y, which can facilitate the stable movement of the support 130 relative to the base 120.

[0267] In other embodiments, the contact portion 134 can not be arranged between the support 130 and the base 120, and the support 130 is movably arranged in the base 120.

[0268] In order to switch the focal length by switching the optical path, the optical lens 100 further comprises a first lens group 101, a second lens group 102 and a fixed reflecting element 104 in some embodiments. The movable reflecting element 103 is located between the fixed reflecting element 104 and the moving lens group 105 along the first direction X. The first lens group 101 and the movable reflecting element 103 are oppositely arranged along the third direction Z, and the second lens group 102 and the fixed reflecting element 104 are oppositely arranged along the third direction Z. The first direction X and the third direction Z form a predetermined angle. Referring to (a) of FIG. 2, when the movable reflecting element 103 is in the first position 103c, the first light ray L1 passes through the first lens group 101 and is reflected by the movable reflecting element 103 to the moving lens group 105, and the optical lens 100 has a first effective focal length. Referring to (b) of FIG. 2, when the movable reflecting element 103 is in the second position 103d, the second light ray L2 passes through the second lens group 102 and is reflected by the fixed reflecting element 104 to the moving lens group 105, and the movable reflecting element 103 can avoid the reflected light formed by the fixed reflecting element 104 from the second light ray L2, and the optical lens 100 has a second effective focal length which is not equal to the first effective focal length.

[0269] The first lens group 101 and the second lens group 102 are used to receive external ambient light. The first lens group 101 (the second lens group 102) can comprise one or more optical lenses. When the first lens group 101 (the second lens group 102) comprises a plurality of optical lenses, the plurality of optical lenses are arranged along a predetermined optical axis direction. By designing the number of lenses and the parameters of each lens, a lens group with different characteristics such as wide-angle, standard, telephoto, etc. can be obtained. For example, the first effective focal length is smaller than the second effective focal length, the first lens group 101 is a wide-angle lens group, and the second lens group 102 is a telephoto lens group.

[0270] As shown in (a) of FIG. 2, the first lens group 101 and the movable reflecting element 103 are oppositely arranged along the third direction Z, and the movable reflecting element 103 and the moving lens group 105 are arranged along the first direction X. When the movable reflecting element 103 is in the first position 103c, the first lens group 101, the movable reflecting element 103 and the moving lens group 105 can form a first optical path.

[0271] As shown in (b) of FIG. 2, the second lens group 102 and the fixed reflecting element 104 are oppositely arranged along the third direction Z, and the fixed reflecting element 104 and the moving lens group 105 are arranged along the first direction X. When the movable reflecting element 103 is in the second position 103d, the second lens group 102, the fixed reflecting element 104 and the moving lens group 105 can form a second optical path.

[0272] When the movable reflecting member 103 is in the first position 103c and the second position 103d respectively, the effective focal length of the optical lens 100 is different, that is, the optical lens 100 has different effective focal lengths when the moving lens group 105 receives the light from the first lens group 101 and the second lens group 102, so that the optical lens 100 has optical zoom capability.

[0273] Referring to (a) of FIG. 2, when the movable reflecting member 103 is in the first position 103c, the rear end 103b can be located between the first lens group 101 and the second lens group 102 and close to the first lens group 101. Referring to (b) of FIG. 2, when the movable reflecting member 103 is in the second position 103d, the rear end 103b is located between the first lens group 101 and the second lens group 102 in the first direction X, effectively utilizing the space of the optical lens 100 in the first direction X, so that the size of the optical lens 100 in the first direction X can be small.

[0274] In order to make the first light L1 better reflect to the moving lens group 105 through the movable reflecting member 103 in the first position 103c, in some embodiments, referring to (a) of FIG. 2, when the movable reflecting member 103 is in the first position 103c, the second light L2 from the second lens group 102 reflects through the fixed reflecting member 104 to form reflected light, and the movable reflecting member 103 can block the reflected light. The first light L1 from the first lens group 101 better reflects to the moving lens group 105 through the movable reflecting member 103 in the first position 103c, avoiding the second light L2 as stray light entering the light path to cause unclear imaging.

[0275] In order to make the second light L2 better reflect to the moving lens group 105 through the fixed reflecting member 104, in some embodiments, referring to (b) of FIG. 2, when the movable reflecting member 103 is in the second position 103d, the movable reflecting member 103 can be arranged close to the first lens group 101, and the movable reflecting member 103 can block the first light L1 from the first lens group 101. The second light L2 from the second lens group 102 better reflects to the moving lens group 105 through the fixed reflecting member 104, avoiding the first light L1 as stray light entering the light path to cause unclear imaging.

[0276] When the fixed reflecting member 104 is arranged, the fixed reflecting member 104 can be a plane mirror, which can reflect light and occupy small space. In the case that the optical lens 100 includes a base 120 and a support 130, the support 130 is movably mounted on the base 120, and the fixed reflecting member 104 can be arranged on the base 120. For example, the fixed reflecting member 104 can be directly fixed on the base 120. In addition, the fixed reflecting member 104 can also be installed at other positions.

[0277] In some embodiments, referring to FIG. 2, the first direction X and the third direction Z are perpendicular. The first lens group 101 and the second lens group 102 are arranged along the first direction X, and the optical axis of the first lens group 101 and the optical axis of the second lens group 102 are parallel to the third direction Z. The plane on which the fixed reflecting member 104 is located forms a 45° angle with the third direction Z. The plane on which the fixed reflecting member 104 is located refers to the plane on which the reflecting surface of the fixed reflecting member 104 is located.

[0278] In some embodiments, referring to (a) and (b) of FIG. 2, the first lens group 101 and the second lens group 102 can be located on the same side of the fixed reflecting member 104, and the first lens group 101 and the second lens group 102 are arranged along the first direction X. In combination with (b) of FIG. 1, when the optical lens 100 with the first lens group 101 and the second lens group 102 is applied to the camera module 1000, the optical lens 100 can serve as a rear camera module.

[0279] In other embodiments, referring to (a) and (b) of FIG. 29, the first lens group 101 and the second lens group 102 can be located on opposite sides of the fixed reflecting member 104, respectively. When the optical lens 100 with the first lens group 101 and the second lens group 102 is applied to the camera module 1000, one of the first lens group 101 and the second lens group 102 can serve as a front lens group, and the other can serve as a rear lens group. The camera module 1000 uses the movable lens group 105 and the image sensor 200, and the first lens group 101 and the second lens group 102 are respectively directed to opposite sides to receive light from the opposite sides. The movable reflecting member 103 can be switched between the first position 103c and the second position 103d to switch different light paths, thereby realizing shooting on the opposite sides, respectively.

[0280] When the front end 103a and the rear end 103b of the movable reflecting member 103 are arranged, referring to FIG. 3, the distance D1 between the front end 103a and the rear end 103b is greater than or equal to the straight-line distance between the two positions of the front end 103a when the movable reflecting member 103 is respectively in the first position 103c and the second position 103d. The distance D1 between the front end 103a and the rear end 103b is the distance between the two ends of the movable reflecting member 103 in the XZ plane.

[0281] In combination with (a) of FIG. 2, the movable reflecting member 103 is arranged to have a certain length, so that the first light L1 is reflected by the movable reflecting member 103 in the first position 103c to the movable lens group 105. The distance D1 between the front end 103a and the rear end 103b is greater than or equal to the straight-line distance between the two positions of the front end 103a, so that the movable reflecting member 103 can be quickly switched from the first position 103c to the second position 103d with a small stroke, and the user experience is good.

[0282] In setting the front end 103a and the rear end 103b of the movable reflecting member 103, referring to FIG. 3, the linear distance between the two positions of the front end 103a is greater than or equal to the linear distance D3 between the two positions of the rear end 103b when the movable reflecting member 103 is in the first position 103c and the second position 103d respectively.

[0283] In combination with (a) in FIG. 2, when the movable reflecting member 103 is in the first position 103c, the rear end 103b is arranged close to the first lens group 101, and the front end 103a is arranged away from the first lens group 101. In the process of switching the movable reflecting member 103 from the first position 103c to the second position 103d, the front end 103a gradually approaches the first lens group 101, the linear distance between the two positions of the front end 103a is greater than or equal to the linear distance D3 between the two positions of the rear end 103b, that is, the stroke of the front end 103a is greater than the stroke of the rear end 103b. In combination with (b) in FIG. 2, the front end 103a and the rear end 103b are both arranged close to the first lens group 101, that is, the movable reflecting member 103 is arranged close to the first lens group 101. In the case that the second light L2 irradiates to the moving lens group 105, the movable reflecting member 103 close to the first lens group 101 can avoid the first light L1 entering the optical path as stray light.

[0284] In order to make the optical lens 100 have more effective focal length, more lens groups, movable reflecting members and driving assemblies can be added. By adjusting the positions of the corresponding movable reflecting members through the driving assemblies, the switching of the optical path with different effective focal lengths is realized, so as to realize the shooting of multiple scenes and multiple focal lengths.

[0285] For example, referring to (a) to (c) in FIG. 30, the optical lens 100 includes a first lens group 101, a second lens group 102, a third lens group 106, a fixed reflecting member 104, a first movable reflecting member 103, a second movable reflecting member 107, a first driving assembly 110, a second driving assembly 108 and a moving lens group 105. The fixed reflecting member 104, the second movable reflecting member 107, the first movable reflecting member 103 and the moving lens group 105 are arranged along the first direction X. The first movable reflecting member 103 and the first lens group 101 are arranged along the third direction Z, the fixed reflecting member 104 and the second lens group 102 are arranged along the third direction Z, and the third lens group 106 and the second movable reflecting member 107 are arranged along the third direction Z. The first driving assembly 110 is used to drive the first movable reflecting member 103 to switch between the first position 103c and the second position 103d. The second driving assembly 108 is used to drive the second movable reflecting member 107 to switch between the third position 107c and the fourth position 107d.

[0286] As shown in (a) of FIG. 30, when the first movable reflecting member 103 is in the first position 103c, the first lens group 101, the first movable reflecting member 103 and the moving lens group 105 can form a first light path. The first light L1 from the first lens group 101 is reflected by the first movable reflecting member 103 to the moving lens group 105, and the optical lens 100 has a first effective focal length.

[0287] As shown in (b) of FIG. 30, when the first movable reflecting member 103 is in the second position 103d and the second movable reflecting member 107 is in the fourth position 107d, the second lens group 102, the fixed reflecting member 104 and the moving lens group 105 can form a second light path. The second light L2 from the second lens group 102 is reflected by the fixed reflecting member 104 to the moving lens group 105, and the optical lens 100 has a second effective focal length.

[0288] As shown in (c) of FIG. 30, when the first movable reflecting member 103 is in the second position 103d and the second movable reflecting member 107 is in the third position 107c, the third lens group 106, the second movable reflecting member 107 and the moving lens group 105 can form a third light path. The third light L3 from the third lens group 106 is reflected by the second movable reflecting member 107 to the moving lens group 105, and the optical lens 100 has a third effective focal length.

[0289] The first effective focal length, the second effective focal length and the third effective focal length are different from each other. For example, the first effective focal length is smaller than the third effective focal length, the third effective focal length is smaller than the second effective focal length, the first lens group 101 can be a wide-angle lens group, the second lens group 102 can be a telephoto lens group, and the third lens group 106 can be a standard lens group. By switching different light paths, the effective focal length switching of the optical lens 100 is realized.

[0290] As shown in (a) of FIG. 30, the plane where the first movable reflecting member 103 in the first position 103c is located and the third direction Z form an angle of 45°. As shown in (b) of FIG. 30, the plane where the first movable reflecting member 103 in the second position 103d is located and the third direction Z are perpendicular. As shown in (c) of FIG. 30, the plane where the second movable reflecting member 107 in the third position 107c is located and the third direction Z form an angle of 45°. As shown in (b) of FIG. 30, the plane where the second movable reflecting member 107 in the fourth position 107d is located and the third direction Z are perpendicular.

[0291] In some embodiments, one of the first lens group 101 and the second lens group 102 has a focal length of 0, and the other has a positive or negative focal length. For example, the first lens group 101 has a positive focal length, and the second lens group 102 has a focal length of 0. In this case, the second lens group 102 can have no lens, i.e., no lens is arranged on the optical path of the second lens group 102, and the second lens group 102 only serves as an optical path entrance, and the second light can directly pass through the optical path or entrance of the second lens group 102 and be incident on the fixed reflecting element 104. Alternatively, the lens in the second lens group 102 can be a plane mirror with a focal length of 0.

[0292] In some embodiments, the first lens group 101 and the second lens group 102 have the same focal length (non-0), and the first lens group 101 and the second lens group 102 are respectively arranged at different distances from the moving lens group 105. The optical lens 100 has different effective focal lengths when the first lens group 101 or the second lens group 102 forms an image.

[0293] In some embodiments, referring to (a) and (b) of FIG. 2, a fixed lens group 109 can be arranged on the light exit side of the moving lens group 105, and the fixed reflecting element 104, the movable reflecting element 103, the fixed lens group 109, and the moving lens group 105 are arranged in sequence along the first direction X. The fixed lens group 109 can include one or more optical lenses. When the moving lens group 105 includes a plurality of optical lenses, the plurality of optical lenses are arranged along a predetermined optical axis direction. The light emitted by the moving lens group 105 passes through the fixed lens group 109 and is projected toward the image sensor 200.

[0294] In order to arrange a large-area image sensor 200 in a small thickness region, in some embodiments, referring to FIG. 2, a prism 170 is further included, the prism 170 has an entrance surface 170a, a first reflecting surface 170b, and a second reflecting surface 170c, the entrance surface 170a of the prism 170 is arranged opposite to the light exit side of the moving lens group 105, and the light from the moving lens group 105 is incident on the prism 170 from the entrance surface 170a, and then is reflected by the first reflecting surface 170b and the second reflecting surface 170c in sequence and is emitted from the first reflecting surface 170b.

[0295] After the prism 170 is arranged on the light exit side of the moving lens group 105, a large-area image sensor 200 can be arranged on the first reflecting surface 170b of the prism 170, and the photosensitive surface of the image sensor 200 faces the first reflecting surface 170b, so that high-quality imaging is obtained on the image sensor 200, and the thickness of the camera module 1000 is small.

[0296] In other embodiments, referring to (a) and (b) of FIG. 31, the prism 170 can not be provided, and the image sensor 200 can be directly arranged on the light exit side of the moving lens group 105.

[0297] Finally, it should be noted that the above description is merely specific embodiments of the present application, and the protection scope of the present application is not limited thereto. Any changes or replacements within the technical scope disclosed in the present application should be covered within the protection scope of the present application. Therefore, the protection scope of the present application should be subject to the protection scope of the claims.

Claims

1. An optical lens characterized in that, The application relates to a mobile mirror, a driving assembly and a mobile lens group. The mobile mirror and the mobile lens group are arranged along a first direction. The mobile mirror has a front end close to the mobile lens group. The driving assembly is used for driving the mobile mirror to switch between a first position and a second position. When the mobile mirror is in the first position, the mobile mirror can reflect first light to the mobile lens group. When the mobile mirror is in the second position, the mobile mirror can avoid second light projected to the mobile lens group, and the front end is located outside a moving area of the mobile lens group. The mobile mirror has one or two rotation axes. When the mobile mirror is in the first position, at least one of the rotation axes of the mobile mirror and the mobile lens group are located on opposite sides of a plane where the mobile mirror is located. Alternatively, the mobile mirror has two rotation axes, and both of the rotation axes of the mobile mirror are located on the same side of the plane where the mobile mirror is located. The application further relates to a base and a support movably mounted on the base, the mobile mirror is fixed on the support, and the driving assembly is arranged on the base and the support.

2. The optical lens of claim 1, wherein, The support has a light-transmitting area, and the light-transmitting area is arranged opposite to a reflecting surface of the mobile mirror.

3. The optical lens of claim 2, wherein, When the mobile mirror is in the first position, the mobile mirror can block the second light. When the mobile mirror is in the second position, the light-transmitting area is used for transmitting the second light to the mobile lens group. The driving assembly is a first rotary motor, and a moving part of the first rotary motor is connected with the support.

4. The optical lens according to claim 2 or 3, characterized in that, The first rotary motor comprises a first magnet group and a first coil, one of the first magnet group and the first coil is arranged on the base, and the other is arranged on the support.

5. The optical lens of claim 4, wherein, The first magnet group extends in an arc shape along a rotation axis of the support.

6. The optical lens of claim 5, wherein, The first magnet group and the first coil are arranged opposite to each other along a second direction. The first magnet group has two opposite polarity directions, the polarity direction of the first magnet group is parallel to the second direction, and the polarity direction of the first magnet group is perpendicular to a winding plane of the first coil.

7. The optical lens according to claim 2 or 3, characterized in that, The first coil has two first sub-segments spaced apart and conductive, and the two first sub-segments and the two polarity directions of the first magnet group are arranged opposite to each other one by one. Alternatively, a first magnetic guide is arranged on a side of the first magnet group away from the first coil. The driving assembly comprises a first translation motor and a first transmission mechanism, and the first translation motor is used for driving the first transmission mechanism to move so as to rotate the support.

8. The optical lens of claim 7, wherein, The first translation motor comprises a second magnet group and a second coil, one of which is arranged on the base as a fixed part of the first translation motor, and the other is arranged as a movable part of the first translation motor, the second magnet group is arranged along the first direction or the third direction, the second magnet group and the second coil are arranged opposite to each other along the second direction, the second magnet group and the second coil cooperate to output linear motion, the first direction and the third direction form a predetermined included angle, and the second direction is perpendicular to the first direction and the third direction respectively.

9. The optical lens of claim 8, wherein, The second magnet group has two opposite polarity directions, the polarity direction of the second magnet group is parallel to the second direction, and the polarity direction of the second magnet group is perpendicular to the winding plane of the second coil. The second coil has two second sub-segments spaced apart and conductive, and the two second sub-segments and the two polarity directions of the second magnet group are arranged opposite to each other one by one. And / or, the second magnet group is provided with a second magnetic conducting member away from the second coil.

10. The optical lens according to any one of claims 7 to 9, characterized in that, The first transmission mechanism comprises a first crank and a first sliding member, the first sliding member is slidably installed on the base along the first direction, the movable part of the first translation motor can move along the first direction and is connected with the first sliding member, one end of the first crank is pivotally connected with the base, the other end of the first crank is pivotally connected with the support, and the support is pivotally connected with the first sliding member. Or, the first transmission mechanism comprises a first connecting rod and a second sliding member, the second sliding member is slidably installed on the base along the first direction, the movable part of the first translation motor can move along the first direction and is connected with the second sliding member, the support is pivotally connected with the base, one end of the first connecting rod is pivotally connected with the second sliding member, and the other end of the first connecting rod is pivotally connected with the support. Or, the first transmission mechanism comprises a second crank and a third sliding member, the third sliding member is slidably installed on the base along the third direction, the movable part of the first translation motor can move along the third direction and is connected with the third sliding member, one end of the second crank is pivotally connected with the base, the other end of the second crank is pivotally connected with the support, and the support is pivotally connected with the third sliding member, and the first direction and the third direction form a predetermined included angle. Or, the first transmission mechanism comprises a second connecting rod and a fourth sliding member, the fourth sliding member is slidably installed on the base along the first direction, the movable part of the first translation motor can move along the first direction and is connected with the fourth sliding member, and the two ends of the second connecting rod are pivotally connected with the fourth sliding member and the support respectively; the support has a first sliding part and a second sliding part spaced apart, the first sliding part is slidably installed on the base, the second sliding part is slidably installed on the base, and the sliding path of the first sliding part is different from that of the second sliding part. Or, the support is rotatably connected to the base, the first transmission mechanism comprises a gear and a rack, the gear is fixed to the support, the rotation axis of the support relative to the base is coaxial with the gear, and the rack is fixed to the movable part of the first translation motor.

11. The optical lens of claim 2 or 3, wherein, The driving assembly comprises a second rotation motor and a second transmission mechanism, the second rotation motor is used to drive the second transmission mechanism to move so as to rotate the support.

12. The optical lens of claim 11, wherein, The support is rotatably connected to the base, the second transmission mechanism comprises a third crank and a fifth sliding member, the fifth sliding member is slidingly installed on the support, one end of the third crank is fixed to the movable part of the second rotation motor, and the other end of the third crank is pivotally connected to the fifth sliding member.

13. The optical lens of claim 2 or 3, wherein, The driving assembly comprises a second translation motor, a third translation motor, a sixth sliding member and a seventh sliding member, the sixth sliding member is slidingly installed on the base along the first direction, the second translation motor is used to drive the sixth sliding member to move along the first direction, the seventh sliding member is slidingly installed on the base along a third direction, and the third translation motor is used to drive the seventh sliding member to move along the third direction; the support has a first end and a second end which are oppositely distributed, the first end is pivotally connected to the sixth sliding member, the second end is pivotally connected to the seventh sliding member, and a predetermined included angle is formed between the first direction and the third direction.

14. The optical lens of any of claims 2 to 13, wherein, The base and the support are provided with a first magnetic assembly for moving the movable reflecting member adjacent to the first position to the first position; the first magnetic assembly comprises a first magnetic member arranged on the base and a second magnetic member arranged on the support, and the first magnetic member and the second magnetic member can be magnetically adsorbed. And / or, the base and the support are provided with a second magnetic assembly for moving the movable reflecting member adjacent to the second position to the second position; the second magnetic assembly comprises a third magnetic member arranged on the base and a fourth magnetic member arranged on the support, and the third magnetic member and the fourth magnetic member can be magnetically adsorbed.

15. The optical lens of any of claims 2 to 14, wherein, The support is provided with an elastic frame, the elastic frame comprises a bending part and a supporting part, one end of the bending part is connected to the supporting part, and the other end of the bending part is fixed to the support, and the movable reflecting member is fixed to the supporting part.

16. The optical lens of any of claims 2 to 15, wherein, The support and the base are provided with a contact part along a second direction, and the second direction is perpendicular to the first direction.

17. The optical lens of any of claims 1 to 16, wherein, During the movement of the movable reflecting member between the first position and the second position, the front end is entirely located outside the movable lens group active area, or the front end is partially located in the movable lens group active area. And / or, the movable reflecting member has a rear end which is oppositely arranged to the front end, the rear end is away from the movable lens group, and the straight-line distance between the two positions of the front end is greater than or equal to the straight-line distance between the two positions of the rear end when the movable reflecting member is respectively in the first position and the second position. And / or, the movable reflecting member has a front end and a rear end opposite to the front end, the rear end is away from the moving lens group, the distance between the front end and the rear end is greater than or equal to the straight line distance between the two positions of the front end when the movable reflecting member is in the first position and the second position respectively.

18. The optical lens of any of claims 1 to 17, wherein, Further comprising a first lens group, a second lens group and a fixed reflecting member; along the first direction, the movable reflecting member is between the fixed reflecting member and the moving lens group; The first lens group and the movable reflecting member are opposite to each other along a third direction, and the second lens group and the fixed reflecting member are opposite to each other along the third direction; the first direction and the third direction form a predetermined angle; When the movable reflecting member is in the first position, the first light passes through the first lens group and is reflected by the movable reflecting member to the moving lens group, and the optical lens has a first effective focal length; When the movable reflecting member is in the second position, the second light passes through the second lens group and is reflected by the fixed reflecting member to the moving lens group, and the movable reflecting member can avoid the reflected light formed by the fixed reflecting member, and the optical lens has a second effective focal length different from the first effective focal length.

19. The optical lens of claim 18, wherein, When the movable reflecting member is in the first position, the second light is reflected by the fixed reflecting member to form reflected light, and the movable reflecting member can block the reflected light; And / or, when the movable reflecting member is in the second position, the movable reflecting member is close to the first lens group, and the movable reflecting member can block the first light.

20. The optical lens of any of claims 1 to 19, wherein, Further comprising a prism, the prism has an incident surface, a first reflecting surface and a second reflecting surface, the incident surface of the prism and the light exit side of the moving lens group are opposite to each other, and the light from the moving lens group is incident into the prism through the incident surface, and then reflected by the first reflecting surface and the second reflecting surface in sequence, and then exits from the first reflecting surface.

21. An image capture module, comprising: An image sensor and an optical lens according to any one of claims 1 to 20, the light exit side of the optical lens and the image sensor are opposite to each other, and the optical lens is used for projecting light on the image sensor.

22. An electronic device, comprising: A device housing and a camera module according to claim 21, the camera module is arranged in the device housing.

Images