Lens module and electronic device

Abstract

The embodiments of the present application provide a lens module and an electronic device. The lens module comprises a polarization module and a photosensitive element. The polarization module comprises: a polarization assembly, the polarization assembly being provided with at least two blade-type polarizers, a rotary mount, and a base, the at least two blade-type polarizers being arranged on the rotary mount, and the rotary mount being arranged on the base; and a first drive assembly, the polarization assembly being connected to the first drive assembly, and the first drive assembly being configured to drive the at least two blade-type polarizers to switch between a closed state and a separated state. The photosensitive element is configured to receive incident light. The lens module provided in the embodiments of the present application can implement polarization three-dimensional imaging through a simple structure while ensuring conventional photographing and imaging functions, thereby reducing the volume of the lens module used for three-dimensional imaging.

Description

Lens modules and electronic devices

[0001] This application claims priority to the Chinese patent application filed with the State Intellectual Property Office of China on March 29, 2024, with application number 202410382757.5 and invention name “Lens module and electronic device”, the entire contents of which are incorporated by reference into this application. Technical Field

[0002] The present application relates to the field of lenses, and more specifically, to a lens module and an electronic device. Background Art

[0003] Three-dimensional imaging can identify depth information in space and restore the complete three-dimensional world. It has significant potential in areas such as human-computer interaction, augmented reality (AR), virtual reality (VR), facial recognition, and mobile payments. Therefore, three-dimensional imaging has become a key evolutionary direction for electronic devices. Currently, three-dimensional imaging can be divided into two methods: active imaging and passive imaging. Both methods typically require additional light sources or multiple cameras, while introducing issues such as high power consumption, high cost, and large size. Achieving polarization-based three-dimensional imaging with a single lens and single sensor without affecting the lens module's conventional shooting and imaging functions is crucial for electronic device lens modules. Summary of the Invention

[0004] The present application provides a lens module and an electronic device, which realize polarized three-dimensional imaging through a simple structure while ensuring the conventional shooting and imaging functions of the lens module, thereby reducing the volume of the lens module used for three-dimensional imaging.

[0005] In a first aspect, a lens module is provided, which includes a polarization module and a photosensitive element. The polarization module includes: a polarization component, which is provided with at least two blade-type polarizers, a rotating bracket and a base, and the at least two blade-type polarizers are arranged on the rotating bracket, and the rotating bracket is arranged on the base; a first driving component, the polarization component is connected to the first driving component, and the first driving component is used to drive the at least two blade-type polarizers to switch between a closed state and a separated state; in the closed state, the at least two blade-type polarizers are tightly closed to polarize the incident light; in the separated state, the at least two blade-type polarizers are separated to a position away from the center of the polarization component, and a gap is formed between the at least two blade-type polarizers, and the incident light passes through the gap; the photosensitive element is used to receive the incident light.

[0006] Based on the above technical solution, at least two leaf-type polarizers in the polarization assembly can be moved in or out from the direction of the incident light under the drive of the first driving assembly, that is, switched between a closed state and a separated state, further enabling the lens module to switch between a polarized imaging state and a conventional imaging state; when at least two leaf-type polarizers are in a closed state, the incident light is polarized, so that the lens module can form an image in a polarized imaging state; when at least two leaf-type polarizers are in a separated state, the incident light is not polarized, so that the lens module can form an image in a conventional imaging state, thereby realizing three-dimensional polarization imaging while not affecting the conventional shooting function of the lens module; and polarized three-dimensional imaging is realized through a simple structure, which reduces the volume of the lens module used for three-dimensional imaging.

[0007] In combination with the first aspect, in certain implementations of the first aspect, the first drive component includes a coil and a magnetic component, the coil is connected to the rotating bracket, the magnetic component is connected to the base, the coil and the magnetic component are arranged corresponding to each other, and the coil is connected to an external power supply.

[0008] Based on the above technical solution, the first driving component rotates the rotating bracket through the action of magnetic force, thereby realizing the switching of the blade-type polarizer between the closed state and the separated state.

[0009] In conjunction with the first aspect, in certain implementations of the first aspect, each of the leaf-type polarizers is provided with a limiting hole, the base is provided with a number of first limiting posts corresponding to the number of the limiting holes, and the first limiting posts are inserted into the limiting holes; each of the leaf-type polarizers is provided with a sliding slot, the rotating bracket is provided with a number of second limiting posts corresponding to the number of the sliding slots, and the second limiting posts are inserted into the sliding slots. Each of the leaf-type polarizers rotates around the first limiting post.

[0010] Based on the above technical solution, each leaf-type polarizer can rotate around the first limiting column, thereby realizing switching between a closed state and a separated state, and further enabling the lens module to switch between a polarized imaging state and a conventional imaging state.

[0011] In combination with the first aspect, in certain implementations of the first aspect, each of the blade-type polarizers is a blade-type array polarizer, and the blade-type array polarizer is provided with four different micro-polarization array units whose polarization angles conform to an arithmetic progression relationship, and the tolerance of the arithmetic progression is 45 degrees.

[0012] With reference to the first aspect, in certain implementations of the first aspect, polarization angles of the four different micro-polarization array units are respectively 0 degree, 45 degrees, 90 degrees, or 135 degrees.

[0013] Based on the above technical solution, when the incident light passes through the blade array polarizer, polarization information at four angles can be obtained simultaneously, thereby realizing three-dimensional stereoscopic imaging.

[0014] In combination with the first aspect, in some implementations of the first aspect, the polarization component is disposed on the object-side surface of the photosensitive element.

[0015] Based on the above technical solution, the loss of incident light information received by the photosensitive element is minimal, resulting in better imaging effects.

[0016] In combination with the first aspect, in certain implementations of the first aspect, each of the leaf-type polarizers is a leaf-type linear polarizer;

[0017] The polarization module further includes a second driving component, which is used to drive the polarization component to rotate along the center of the polarization component on a plane perpendicular to the incident light.

[0018] Based on the above technical solution, when the polarization angle of the polarization component is adjusted to a specific angle, the reflected light and stray light brought by the incident light can be filtered out to obtain a better imaging effect.

[0019] In combination with the first aspect, in certain implementations of the first aspect, the polarization component is rotated at an angle of 0 degrees, 45 degrees, 90 degrees, or 135 degrees along the center of the polarization component on a plane perpendicular to the incident light.

[0020] Based on the above technical solution, when the polarization component is a blade-type linear polarizer, the second driving component can drive the polarization component to rotate, thereby obtaining polarization information at four angles and realizing three-dimensional stereoscopic imaging.

[0021] In combination with the first aspect, in certain implementations of the first aspect, the second drive component includes a limiting ring, the limiting ring includes a hollow portion and an annular groove, the polarization component is arranged in the hollow portion, a stator coil is arranged in the annular groove, a mover magnetic component is arranged on the polarization component, the stator coil is arranged corresponding to the mover magnetic component, and the stator coil is connected to an external power supply.

[0022] Based on the above technical solution, the second driving component can rotate the polarization component through magnetic force, so that the polarization angle of the polarization component changes.

[0023] In combination with the first aspect, in certain implementations of the first aspect, the blade-type linear polarizer includes any one of a dielectric film polarizer, a metal wire grid polarizer, or a liquid crystal polarizer.

[0024] In combination with the first aspect, in some implementations of the first aspect, the number of the blade-type polarizers is three.

[0025] In combination with the first aspect, in certain implementations of the first aspect, the lens module further includes: a lens assembly, which includes an aperture and a first lens group along the propagation direction of the incident light; the polarization component is located on the object side or image side of the first lens group, and the photosensitive element is located at the end of the incident direction of the incident light.

[0026] In combination with the first aspect, in some implementations of the first aspect, the polarization component is disposed between lenses of the first lens group.

[0027] In combination with the first aspect, in certain implementations of the first aspect, the lens assembly further includes a second lens group and a first reflector, the first reflector being located between the first lens group and the second lens group, and the first reflector being used to change the incident direction of the incident light.

[0028] In combination with the first aspect, in certain implementations of the first aspect, the lens assembly further includes a second reflector, which is located between the second lens group and the photosensitive element, and the second reflector is used to change the incident direction of the incident light.

[0029] In combination with the first aspect, in certain implementations of the first aspect, the lens assembly further includes a color filter, which is disposed on the object side of the photosensitive element.

[0030] In a second aspect, a polarization module is provided, which includes: a polarization component, which is provided with at least two blade-type polarizers, a rotating bracket and a base, and the at least two blade-type polarizers are arranged on the rotating bracket, and the rotating bracket is arranged on the base; a first driving component, the polarization component is connected to the first driving component, and the first driving component is used to drive the at least two blade-type polarizers to switch between a closed state and a separated state; in the closed state, the at least two blade-type polarizers are tightly closed to polarize the incident light; in the separated state, the at least two blade-type polarizers are separated to a position away from the center of the polarization component, and a gap is formed between the at least two blade-type polarizers, and the incident light passes through the gap.

[0031] Based on the above technical solution, at least two leaf-type polarizers in the polarization assembly can be moved in or out from the direction of the incident light under the drive of the first driving assembly, that is, switched between a closed state and a separated state, further enabling the lens module to switch between a polarized imaging state and a conventional imaging state; when at least two leaf-type polarizers are in a closed state, the incident light is polarized, so that the lens module can form an image in a polarized imaging state; when at least two leaf-type polarizers are in a separated state, the incident light is not polarized, so that the lens module can form an image in a conventional imaging state, thereby realizing three-dimensional polarization imaging while not affecting the conventional shooting function of the lens module; and polarized three-dimensional imaging is realized through a simple structure, which reduces the volume of the lens module used for three-dimensional imaging.

[0032] In combination with the second aspect, in certain implementations of the second aspect, the first drive component includes a coil and a magnetic component, the coil is connected to the rotating bracket, the magnetic component is connected to the base, the coil is arranged corresponding to the magnetic component, and the coil is connected to an external power supply.

[0033] Based on the above technical solution, the first driving component rotates the rotating bracket through the action of magnetic force, thereby realizing the switching of the blade-type polarizer between the closed state and the separated state.

[0034] In conjunction with the second aspect, in certain implementations of the second aspect, each of the leaf-type polarizers is provided with a limiting hole, the base is provided with a number of first limiting posts corresponding to the number of the limiting holes, and the first limiting posts are inserted into the limiting holes; each of the leaf-type polarizers is provided with a sliding slot, the rotating bracket is provided with a number of second limiting posts corresponding to the number of the sliding slots, and the second limiting posts are inserted into the sliding slots. Each of the leaf-type polarizers rotates around the first limiting post.

[0035] Based on the above technical solution, each leaf-type polarizer can rotate around the first limiting column, thereby realizing switching between a closed state and a separated state, and further enabling the lens module to switch between a polarized imaging state and a conventional imaging state.

[0036] In combination with the second aspect, in certain implementations of the second aspect, each of the blade-type polarizers is a blade-type array polarizer, and the blade-type array polarizer is provided with four different micro-polarization array units whose polarization angles conform to an arithmetic progression relationship, and the tolerance of the arithmetic progression is 45 degrees.

[0037] With reference to the second aspect, in certain implementations of the second aspect, the polarization angles of the four different micro-polarization array units are respectively 0 degree, 45 degrees, 90 degrees, or 135 degrees.

[0038] Based on the above technical solution, when the incident light passes through the blade array polarizer, polarization information at four angles can be obtained simultaneously, thereby realizing three-dimensional stereoscopic imaging.

[0039] In combination with the second aspect, in certain implementations of the second aspect, the polarization component is disposed on the object side of the photosensitive element of the lens module.

[0040] Based on the above technical solution, the loss of incident light information received by the photosensitive element is minimal, resulting in better imaging effects.

[0041] In combination with the second aspect, in certain implementations of the second aspect, each of the leaf-type polarizers is a leaf-type linear polarizer; the polarization module also includes a second driving component, which is used to drive the polarization component to rotate along the center of the polarization component on a plane perpendicular to the incident light.

[0042] Based on the above technical solution, when the polarization angle of the polarization component is adjusted to a specific angle, the reflected light and stray light brought by the incident light can be filtered out to obtain a better imaging effect.

[0043] In combination with the second aspect, in certain implementations of the second aspect, the polarization component is rotated at an angle of 0 degrees, 45 degrees, 90 degrees, or 135 degrees along the center of the polarization component on a plane perpendicular to the incident light.

[0044] Based on the above technical solution, when the polarization component is a blade-type linear polarizer, the second driving component can drive the polarization component to rotate, thereby obtaining polarization information at four angles and realizing three-dimensional stereoscopic imaging.

[0045] In combination with the second aspect, in certain implementations of the second aspect, the second drive component includes a limiting ring, the limiting ring includes a hollow portion and an annular groove, the polarization component is arranged in the hollow portion, a stator coil is arranged in the annular groove, a mover magnetic component is arranged on the polarization component, the stator coil is arranged corresponding to the mover magnetic component, and the stator coil is connected to an external power supply.

[0046] Based on the above technical solution, the second driving component can rotate the polarization component through magnetic force, so that the polarization angle of the polarization component changes.

[0047] In combination with the second aspect, in certain implementations of the second aspect, the blade-type linear polarizer includes any one of a dielectric film polarizer, a metal wire grid polarizer, or a liquid crystal polarizer.

[0048] In combination with the second aspect, in some implementations of the second aspect, the number of the blade-type polarizers is three.

[0049] In combination with the second aspect, in some implementations of the second aspect, the polarization component is disposed between lenses of the first lens group of the lens module.

[0050] In a third aspect, an electronic device is provided, which includes the lens module as in the first aspect and any one of its implementations, or includes the polarization module as in the second aspect and any one of its implementations. BRIEF DESCRIPTION OF THE DRAWINGS

[0051] FIG1 is a schematic diagram of an electronic device provided in an embodiment of the present application.

[0052] FIG2 is a schematic structural diagram of a lens module provided in an embodiment of the present application.

[0053] FIG3 is a schematic structural diagram of another lens module provided in an embodiment of the present application.

[0054] FIG4 is an exploded schematic diagram of a polarization component provided in an embodiment of the present application.

[0055] FIG5 is a top view of a polarization component provided in an embodiment of the present application.

[0056] FIG6 is a partial schematic diagram of a blade-type polarizer provided in an embodiment of the present application.

[0057] FIG7 is a partial schematic diagram of FIG5.

[0058] FIG8 is a schematic structural diagram of another polarization component provided in an embodiment of the present application. DETAILED DESCRIPTION

[0059] The technical solution in this application will be described below with reference to the accompanying drawings.

[0060] It should be noted that, in the embodiments of the present application, the orientation or positional relationship indicated by the terms "upper", "lower", "vertical", "horizontal", "inside", "outside", etc. is based on the orientation or positional relationship shown in the accompanying drawings, and is only for the convenience of describing the embodiments of the present application and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore cannot be understood as limiting the embodiments of the present application. The terms "include", "comprise", "have" and their variations all mean "including but not limited to", unless otherwise specifically emphasized. In addition, the terms "first", "second", and "third" are only used for descriptive purposes and cannot be understood as indicating or implying relative importance. The size of the sequence number of each process below does not mean the order of execution. The order of execution of each process should be determined by its function and internal logic, and should not constitute any limitation on the implementation process of the embodiments of the present application.

[0061] References to "one embodiment" or "some embodiments" described in this embodiment mean that one or more embodiments of the present application include specific features, structures or characteristics described in conjunction with the embodiment. In this application, words such as "exemplary" or "for example" are used to indicate examples, illustrations or explanations. Any embodiment or design described in this application as "exemplary" or "for example" should not be interpreted as being more preferred or more advantageous than other embodiments or design. Specifically, the use of words such as "exemplary" or "for example" is intended to present the relevant concepts in a concrete way. The terms "including", "comprising", "having" and their variations all mean "including but not limited to", unless otherwise specifically emphasized. In the embodiments of the present application, descriptions such as "when...", "in the case of...", "if" and "if" all mean that the device will perform corresponding processing under certain objective circumstances, and do not limit the time, nor do they require the device to perform judgment actions when implemented, nor do they mean that there are other limitations.

[0062] In addition, it should be noted that in the description of the embodiments of this application, unless otherwise clearly specified or limited, the terms "connected" and "connection" should be understood in a broad sense. For example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection or an indirect connection through an intermediate medium, or it can be internal communication between two components. For those skilled in the art, the specific meanings of the above terms in the embodiments of this application can be understood according to specific circumstances.

[0063] For ease of understanding, the technical terms involved in this application are explained and described below.

[0064] Lens: A component that uses the refraction principle of the lens to allow the light beam of the scene to pass through the lens and form a clear image on the focal plane.

[0065] Object side: With the lens as the boundary, the side where the object is located is the object side, and the surface of the lens close to the object side is called the object side.

[0066] Image side: With the lens as the boundary, the side where the image of the object is located is called the image side, and the surface of the lens close to the image side can be called the image side.

[0067] Aperture: refers to the edge, frame or specially designed barrier with holes in the optical component of the optical assembly used to limit the size of the imaging beam or the imaging space unit.

[0068] Dielectric film-coated polarizer: It can be a polarizer prepared by atomic layer deposition, sputtering coating, electron beam evaporation coating, ion beam coating and other methods.

[0069] Wire grid polarizer: A polarizer with a periodic metal wire grid array on its surface.

[0070] Liquid crystal polarizer: The polarizer contains liquid crystal. By applying different electric fields to the liquid crystal, different polarization angles can be obtained.

[0071] It should be noted that the electronic devices involved in the embodiments of the present application may include handheld devices, vehicle-mounted devices, wearable devices, computing devices, or other processing devices connected to a wireless modem. For example, a cellular phone, a mobile phone, a smart phone, a tablet computer, a laptop computer, a video camera, a video recorder, a still camera, a smart watch, a smart wristband, or other devices with photo or video recording capabilities. The embodiments of the present application do not impose any particular restrictions on the specific type of electronic device.

[0072] Three-dimensional imaging can identify depth information in space and reconstruct the complete three-dimensional world. It holds significant potential in areas such as human-computer interaction, augmented reality (AR), virtual reality (VR), facial recognition, and mobile payments. Therefore, 3D imaging has become a key evolutionary direction for electronic devices. Currently, 3D imaging can be categorized into two methods: active and passive. Active imaging generally requires an additional light source, which introduces issues such as high power consumption, high cost, and bulk. Passive imaging, on the other hand, does not require an additional light source. Currently, the two main approaches are multi-lens stereo vision and polarization 3D imaging. Multi-lens stereo vision requires at least two cameras, and its detection range is limited by the distance between the cameras. Achieving polarization 3D imaging with a single lens and sensor without compromising the lens module's conventional shooting and imaging capabilities is crucial for electronic device lens modules.

[0073] In view of this, an embodiment of the present application provides a lens module and an electronic device for three-dimensional imaging using polarization information. The lens module can not only realize conventional shooting and imaging functions, but also realize color three-dimensional imaging by fusing and restoring different polarization information on the surface of the subject.

[0074] Figure 1 is a schematic diagram of an electronic device provided in an embodiment of the present application. This embodiment of the present application is described by taking the electronic device 100 as a mobile phone as an example.

[0075] The electronic device 100 includes a housing 10, a display screen 20, an image processor 30, and a lens module 40. In some embodiments, the housing 10 includes a frame 101 and a back cover 102. The frame 101 and the back cover 102 can be an integrally formed structure, or they can be assembled to form an integral structure. The display screen 20 and the back cover 102 are respectively mounted on both sides of the frame 101, and together enclose the inner cavity of the entire device. The display screen 20 can be a liquid crystal display (LCD) screen, an organic light emitting diode (OLED) display screen, etc., wherein the OLED display screen can be a flexible display screen or a rigid display screen.

[0076] The image processor 30 and lens module 40 are housed within the interior of the device. The image processor 30 is communicatively coupled to the lens module 40, and is used to acquire and process image data from the lens module 40. The communication between the lens module 40 and the image processor 30 can include data transmission via electrical connections such as wiring, or data transmission can be achieved through coupling or other methods. It is understood that the lens module 40 and the image processor 30 can also be communicated via other methods capable of achieving data transmission.

[0077] Image processor 30 optimizes and processes the digital image signal and transmits the processed signal to the display. Image processor 30, which can be an image processing chip or a digital signal processing chip, promptly and quickly transmits data obtained by the photosensitive element to the central processing unit and refreshes the photosensitive element. Therefore, the quality of image processor 30 directly affects image quality (such as color saturation and clarity).

[0078] The lens module 40 can be set only on the front of the electronic device 100 to shoot the scene on the front side of the electronic device 100. In some embodiments, it can be called a front lens module; it can also be set only on the back of the electronic device 100 to shoot the scene on the back side of the electronic device 100. In some embodiments, it can be called a rear lens module; it can also be set on the front and back of the electronic device 100. As shown in Figure 1, the lens module 40 is set on the front of the electronic device 100, and the lens module 40 is also set on the back of the electronic device 100. It can shoot both the scene on the front side of the electronic device 100 and the scene on the back side of the electronic device 100, as long as the corresponding lens module is used when shooting.

[0079] It should be understood that the mounting location of the lens module 40 is merely illustrative. In some embodiments, when the lens module 40 functions as a front-facing lens module, it may also be mounted elsewhere on the electronic device 100, such as to the left of the earpiece, in the upper center of the electronic device 100, at the bottom of the electronic device 100, or at one of the four corners of the electronic device 100. When the lens module 40 functions as a rear-facing lens module, it may be mounted in the upper center or upper right corner of the back of the electronic device 100. In other embodiments, the lens module 40 may not be mounted on the main body of the electronic device 100, but may be mounted on an edge protruding from the main body of the electronic device 100, or on a component that is movable or rotatable relative to the electronic device 100, such as a component that can extend, retract, or rotate from the main body of the electronic device 100. When the lens module 40 is rotatable relative to the electronic device 100, the lens module 40 functions as both a front-facing lens module and a rear-facing lens module. That is, by rotating the same lens module 40, it can capture both the front and back views of the electronic device 100. In other embodiments, when the display screen 20 can be folded, the lens module 40 can be used as either a front lens module or a rear lens module. The lens module 40 is used to shoot the scene on the front side of the electronic device 100 or the scene on the back side of the electronic device 100 as the display screen 20 is folded.

[0080] The embodiment of the present application does not limit the number of lens modules 40 provided, and can be one, two, four, or even more. For example, the electronic device 100 can be provided with one or more lens modules 40 on the front, and one or more lens modules 40 on the back. The embodiment of the present application does not impose any restrictions on the number of lens modules provided, nor does it impose any restrictions on the relative positions of multiple lens modules when provided. When multiple lens modules 40 are provided, the multiple lens modules 40 can be exactly the same or different, for example, the multiple lens modules 40 include different numbers of lenses, or different optical parameters of the lenses, or different settings of the lenses, etc.

[0081] The lens module 40 can be used to shoot videos and / or photos, and can be used to shoot scenes at different distances. For example, the lens module 40 can be used to shoot distant scenes, can be used to shoot close scenes, and can also be used to shoot macro scenes. In the embodiment provided in the present application, the lens module 40, on the basis of satisfying the above-mentioned conventional shooting and imaging functions, can also be switched to a polarized imaging state to realize a three-dimensional polarized imaging function.

[0082] Optionally, the electronic device 100 may further include a lens protection lens 103 for protecting the lens module 40. The lens protection lens 103 is arranged on the housing 10 to cover the lens module 40. When the lens protection lens 103 is used to protect the front lens module, the lens protection lens 103 may only cover the front lens module or cover the entire front of the electronic device 100, wherein when the lens protection lens 103 covers the entire front of the electronic device 100, it can be used to protect the front lens module and the display screen 20 at the same time, and the lens protection lens 103 is a cover glass (cover glass, CG). When the lens protection lens 103 is used to protect the rear lens module, the lens protection lens 103 may cover the entire back of the electronic device 100, or it may be only arranged at a position corresponding to the rear lens module to protect the rear lens module. The material of the lens protection lens 103 may be glass, sapphire, ceramic, etc., and is not specifically limited in the embodiments of the present application. In some embodiments, the lens protection lens 103 is transparent, so that a light beam outside the electronic device 100 can pass through the lens protection lens 103 and enter the lens module 40 .

[0083] It should be noted that the front of the electronic device 100 described in the embodiment of the present application can be understood as the side surface of the electronic device 100 facing the user when the user uses the electronic device 100, and the back of the electronic device 100 can be understood as the side surface of the electronic device 100 facing away from the user when the user uses the electronic device 100.

[0084] It should be understood that the electronic device 100 shown in Figure 1 is not limited to including the above devices, but may also include other devices, such as a battery, a flash, a fingerprint recognition module, an earpiece, buttons, sensors, etc. The embodiment of the present application only uses the electronic device equipped with a lens module 40 as an example for illustration, but the components installed on the electronic device 100 are not limited to this.

[0085] In some embodiments, the electronic device 100 may further include an analog-to-digital converter (also referred to as an A / D converter, not shown). The analog-to-digital converter is connected between the lens module 40 and the image processor 30. The analog-to-digital converter is used to convert the signal generated by the lens module 40 into a digital image signal and transmit it to the image processor 30. The image processor 30 then processes the digital image signal and ultimately displays the image or video on the display screen 20.

[0086] In some embodiments, the electronic device 100 may further include a memory (not shown), which is communicatively connected to the image processor 30. The image processor 30 processes the digital image signal and then transfers the image to the memory, so that the image can be retrieved from the memory and displayed on the display screen 20 at any time when the image is needed. In some embodiments, the image processor 30 also compresses the processed digital image signal before storing it in the memory to save memory space.

[0087] FIG2 is a schematic diagram of the structure of a lens module provided by an embodiment of the present application. As shown in FIG2(a), along the direction of incident light entering the lens module 40, the lens module 40 includes, in order, an aperture 41, a polarizing element 42, a first lens group 43, and a photosensitive element 44. The polarizing element 42 is disposed on the image-side surface of the aperture 41 and on the object-side surface of the first lens group 43; the aperture 41 and the first lens group 43 can be referred to as a lens assembly.

[0088] The first lens group 43 may include two lenses as shown in (a) and (b) in FIG. 2 , or three lenses as shown in (c) and (d) in FIG. 2 , or a greater number of lenses, which is not limited in the embodiments of the present application.

[0089] In some possible implementations, the lens module 40 further includes other lens groups in addition to the first lens group 43 , which is not limited in the embodiments of the present application.

[0090] In some possible implementations, a color filter 45 may be further provided on the object-side surface of the photosensitive element 44 , as shown in FIG. 2 ( b ).

[0091] In some possible implementations, the polarization component 42 may be disposed between multiple lens groups within the first lens group 43 , as shown in FIG. 2( c ).

[0092] In some possible implementations, the polarization component 42 is disposed on the image side of the first lens group 43 and the object side of the photosensitive element 44, for example, between the first lens group 43 and the photosensitive element 44, as shown in (d) in FIG. 2 .

[0093] In order to meet the telephoto shooting requirements of the lens module, in some embodiments, a reflector may be further provided in the lens assembly to extend the optical path.

[0094] Figure 3 is a structural schematic diagram of another lens module provided in an embodiment of the present application. As shown in (a) in Figure 3, in the direction along which the incident light enters the lens module 50, the lens module 50 includes, in sequence, an aperture 51, a polarization component 52, a first lens group 53, a first reflector 54, a second lens group 55, a color filter 56, and a photosensitive element 57; wherein the aperture 51, the first lens group 53, the first reflector 54, the second lens group 55 and the color filter 56 can be referred to as a lens assembly.

[0095] The first reflector 54 is located between the first lens group 53 and the second lens group 55 . The first reflector 54 can be used to change the incident angle of the incident light.

[0096] In a possible implementation, the first reflective member 54 may change the incident angle of the incident light from a first direction to a second direction, and the first direction may be perpendicular to the second direction.

[0097] The first reflective element 54 may be a prism or a reflective mirror, which is not limited in the embodiments of the present application.

[0098] In some possible implementations, the lens module 50 may further include a second reflector 58, which is located between the second lens group 55 and the photosensitive element 57. As shown in (b) of Figure 3, the second reflector 58 can be used to change the incident angle of the incident light.

[0099] In a possible implementation, the second reflector 58 may change the angle of the incident light in the second direction to a third direction, where the third direction may be perpendicular to the second direction and parallel to the first direction.

[0100] The second reflective element 58 may be a prism or a reflective mirror, which is not limited in the embodiments of the present application.

[0101] The photosensitive element 44 is located on the image side of the first lens group 43. The lens module 40 may further include a circuit board (not shown in the figure), and the photosensitive element 44 may be fixed to the circuit board. The light beam can pass through the first lens group 43 and illuminate the photosensitive surface of the photosensitive element 44. Exemplarily, the working principle of the lens module 40 is as follows: the light beam reflected by the photographed scene generates an optical image through the first lens group 43 and is projected onto the photosensitive surface of the photosensitive element 44. The photosensitive element 44 converts the optical image into an electrical signal, i.e., an analog image signal, and transmits it to the analog-to-digital converter, which converts it into a digital image signal through the analog-to-digital converter and sends it to the image processor 30.

[0102] The photosensitive element 44 (also known as an image sensor) is a semiconductor chip with hundreds of thousands to millions of photodiodes on its surface. When exposed to light, these diodes generate an electrical charge. The photosensitive element 44 can be a charge-coupled device (CCD) or a complementary metal-oxide semiconductor (CMOS). A CCD is made of a highly sensitive semiconductor material and converts light beams into electrical charge. A CCD consists of many photosensitive units, typically measured in millions of pixels. When a light beam hits the CCD's surface, each photosensitive unit reflects the charge on the component. The signals generated by all the photosensitive units are combined to form a complete image. CMOS devices primarily utilize semiconductors made of silicon and germanium, resulting in the coexistence of semiconductors with N (negative charge) and P (positive charge) levels within the CCD. The current generated by these two complementary effects can be recorded and interpreted as an image by the processing chip.

[0103] The first lens group 43 mainly uses the refraction principle of the lens to form an image, that is, the scene light beam passes through the first lens group 43 to form a clear image on the focal plane, and the image of the scene is recorded by the photosensitive element located on the focal plane.

[0104] Color filter 45 is used to filter out unwanted wavelengths of light, preventing false colors or moire on photosensitive element 44, thereby improving its effective resolution and color reproduction. For example, color filter 45 may be an infrared filter. In this embodiment, color filter 45 is a separate component. In other embodiments, color filter 45 may be eliminated and filtering may be achieved by surface or material treatment of at least one lens in the lens assembly. This application does not strictly limit the specific embodiments of the components or structures used to achieve filtering.

[0105] It should be understood that the lens module 40 installed in the electronic device 100 can also be replaced by the lens module 50; the properties of the color filter 56, the photosensitive element 57 or other components similar to those in the lens module 40 in the lens module 50 can refer to the description in the lens module 40, and for the sake of brevity, they will not be repeated here.

[0106] Taking the polarization component 42 in the lens module 40 as an example, the structure of the polarization component 42 is described in detail below. FIG4 is an exploded schematic diagram of a polarization component provided in an embodiment of the present application.

[0107] As shown in (a) and (b) of Figure 4, the polarization assembly 42 includes an upper cover 421, a plurality of blade-type polarizers 422, a rotating bracket 423 and a base 424, each blade-type polarizer 422 is provided with a limiting hole 4221 and a sliding groove 4222, the base 424 is provided with a first limiting column 4241 corresponding to the number of the limiting holes 4221, and the first limiting column 4241 is inserted into the limiting hole 4221; the rotating bracket 423 is provided with a second limiting column 4231 protruding toward the upper cover 421, and the second limiting column 4231 is inserted into the sliding groove 4222, and each blade-type polarizer can rotate around the first limiting column 4241 as the center.

[0108] It is understandable that the provision of the upper cover 421 is optional, and the upper cover 421 can play a role in preventing dust or protecting the components in the polarization component 42.

[0109] The upper cover 421 , the rotating bracket 423 and the base 424 are all configured as a ring structure with a through hole in the middle. This structure is set up so that when the incident light passes through the polarization component 42 , the incident light can pass through the through hole and reach the photosensitive element 44 .

[0110] The polarization component 42 is configured to have two different states: a polarized imaging state and a conventional imaging state. The polarized imaging state refers to the rotation of the blade-type polarizer 422 in the polarization component 42 to the center position of the polarization component 42, so that after the incident light enters the lens module 40, it needs to pass through the blade-type polarizer 422 in the polarization component 42 to collect the polarization information of the incident light at a certain polarization angle, thereby further realizing the three-dimensional polarization imaging function; the conventional imaging state refers to the rotation of the blade-type polarizer 422 in the polarization component 42 to the outer side of the polarization component 42, so that after the incident light enters the lens module 40, it does not pass through the blade-type polarizer 422, but directly passes through the lens and / or other components and is irradiated on the photosensitive element 44, thereby realizing the conventional shooting and imaging functions.

[0111] Based on the above technical solution, the lens module 40 can switch between a conventional imaging state and a polarized imaging state to meet conventional shooting and imaging functions as well as three-dimensional polarized imaging functions.

[0112] In some embodiments, the leaf-type polarizer 422 may be a leaf-type linear polarizer or a leaf-type array polarizer.

[0113] In some embodiments, the number of the leaf-type polarizers 422 can be two or more, and each leaf-type polarizer 422 is provided with a limiting hole and a sliding groove, which is not limited in the embodiments of the present application.

[0114] The blade-type linear polarizer can be a dielectric film polarizer, a metal wire grid polarizer, a liquid crystal polarizer, or other types of polarizers.

[0115] The polarization angles of dielectric-coated polarizers and wire-grid polarizers are fixed during design and production and cannot be changed. To obtain a different polarization angle, the polarizer can be rotated to achieve the desired polarization angle. The polarization angle of liquid crystal polarizers is not fixed and can be changed by adjusting the liquid crystal through a control circuit.

[0116] Figure 5 is a top view of a polarization component provided in an embodiment of the present application. (a) and (b) in Figure 5 are top views of the polarization component 42 after the upper cover 421 is removed. The polarization component 42 shown in (a) in Figure 5 is in a conventional imaging state, and the polarization component 42 shown in (b) in Figure 5 is in a polarized imaging state. The rotating bracket 423 drives the blade-type polarizer 422 to rotate while rotating, so that the polarization component 42 can switch between the conventional imaging state and the polarized imaging state.

[0117] The leaf-type polarizer 422 assembled in the polarization assembly 42 in (a), (b) and (c) of FIG5 is a leaf-type linear polarizer, that is, the polarization angle on the leaf-type linear polarizer is a fixed value.

[0118] Referring to (b) in Figure 5, when the polarization component 42 is in the polarization imaging state, the three leaf-type polarizers 422 are rotated to the center position of the light passage of the polarization component 42, completely covering the light passage, and forming a polarizer with a polarization angle of 90 degrees at the light passage; when the incident light enters the lens module 40, it will pass through the leaf-type polarizer 422 in the polarization component 42, so that the photosensitive element 44 can obtain polarization information when the polarization angle is 90 degrees.

[0119] (e) in Figure 5 is a top view of a blade-type array polarizer provided in an embodiment of the present application. The blade-type polarizer 422 is a blade-type array polarizer. The blade-type array polarizer is composed of micro-polarization array units with multiple different polarization angles. When light passes through the blade-type array polarizer, it will pass through multiple micro-polarization array units at the same time, so that polarization information at different polarization angles can be collected at the same time.

[0120] In the embodiments provided herein, a blade-type array polarizer includes four micro-polarization array units with different polarization angles that conform to an arithmetic progression relationship. The tolerance of the arithmetic progression is 45 degrees. For example, the polarization angles of the four micro-polarization array units can be 15 degrees, 60 degrees, 105 degrees, or 150 degrees, respectively. The difference between the polarization angles of any two micro-polarization array units is 0 degrees, 45 degrees, 90 degrees, or 135 degrees.

[0121] The blade array polarizer shown in (e) in Figure 5 is composed of four micro-polarization array units with polarization angles of 0 degrees, 45 degrees, 90 degrees, and 135 degrees, respectively. When light passes through the blade array polarizer, the photosensitive element can collect polarization information at the four polarization angles to achieve three-dimensional polarization imaging.

[0122] It should be understood that the arrangement order of the four different micro-polarization array units on the blade-type array polarizer is random, and the embodiments of the present application do not limit this.

[0123] In some embodiments, when a leaf-type linear polarizer is used in the polarization assembly, the polarization assembly can be positioned close to the object side surface in the lens module. For example, the leaf-type linear polarizer can be positioned on the object side surface of the first lens group, or between the lenses of the first lens group. See (a), (b), or (c) in Figure 2 for the positioning of the polarization assembly. When a leaf-type array polarizer is used in the polarization assembly, the polarization assembly can be positioned close to the image side surface in the lens module. For example, the leaf-type array polarizer can be positioned on the object side surface of the photosensitive element. See (d) in Figure 2 for the positioning of the polarization assembly. This is because when the incident light passes through the leaf-type polarizer, some light information will be lost, but the leaf-type linear polarizer can only collect polarization information of a fixed polarization angle, while the leaf-type array polarizer can collect polarization information of four polarization angles at the same time. Therefore, the light information lost when the incident light passes through the leaf-type linear polarizer is less than the light information lost by the leaf-type array polarizer. Even if the leaf-type linear polarizer is set close to the side of the object, the light information collected after the incident light finally enters the surface of the photosensitive element is sufficient for polarization imaging; for the leaf-type array polarizer, in order to enable the photosensitive element to collect enough light information, the leaf-type array polarizer needs to be set close to the photosensitive element.

[0124] In some possible implementations, the blade-type linear polarizer mounted on the polarization assembly may be a liquid crystal polarizer; the liquid crystal polarizer contains liquid crystals, and the polarization angle of the liquid crystal polarizer is adjusted by changing the applied external electric field.

[0125] Figure 5(a) is a schematic diagram of the structure of the polarization component in the normal imaging state, and Figure 5(b) is a schematic diagram of the structure of the polarization component in the polarization imaging state. In conjunction with Figures 4 and 5, the method for switching the polarization component 42 between the normal imaging state and the polarization imaging state is described.

[0126] 4 , the polarization module further includes a first driving assembly 46, which is connected to a rotating bracket 423 in the polarization assembly 42 and can drive the rotating bracket 423 to rotate. Since the second limiting column 4231 of the rotating bracket 423 is inserted into the limiting hole 4221 of the blade-type polarizer 422, when the rotating bracket 423 rotates, it can drive the blade-type polarizer 422 to rotate together. Since a sliding groove 4222 is also provided on the blade-type polarizer 422, and the rotating bracket 423 is movably connected to the blade-type polarizer 422 through the sliding groove 4222 via the second limiting column 4231, this arrangement allows the blade-type polarizer 422 to rotate according to the sliding trajectory of the sliding groove 4222.

[0127] The first driving component 46 can switch the blade-type polarizer 422 between a closed state and a separated state; the closed state means that the blade-type polarizer 422 is rotated to the center of the polarization component 42 and tightly closed, so that the blade-type polarizer 422 can polarize the incident light, and the separated state means that the blade-type polarizer 422 is rotated and separated to a position away from the center of the polarization component 42, so that a gap can be formed between the blade-type polarizers 422; for example, the blade-type polarizer 422 is rotated to the outside of the polarization component 42, so that the incident light does not pass through the blade-type polarizer 422, nor does it undergo polarization processing, but passes through the through holes of the upper cover 421, the rotating bracket 423, and the base 424, and passes through the gap between the blade-type polarizers 422.

[0128] It should be understood that when the leaf-type polarizer 422 is in a closed state, it also indicates that the polarization component 42 is in a polarized imaging state, and when the leaf-type polarizer 422 is in a separated state, it also indicates that the polarization component 42 is in a conventional imaging state.

[0129] In some possible implementations, the first driving assembly 46 includes a coil 461 and a magnetic component 462 . The coil 461 is connected to the rotating bracket 423 , and the magnetic component 462 is fixed to the base 424 .

[0130] 4 , the coil 461 and the magnetic component 462 are arranged relative to each other, with a gap left between the coil 461 and the magnetic component 462 to facilitate relative movement therebetween.

[0131] The magnetic component 462 may be a permanent magnet or a magnet, which is not limited in the embodiments of the present application.

[0132] The coil 461 can be connected to an external power source so that an electric current can be set in the coil 461; after the coil 461 is energized, a magnetic field will be generated around the coil 461, so that the coil 461 has magnetism when it is energized. Under the action of the magnetic force, the magnetic component 462 can drive the coil 461 to move, that is, the coil 461 can drive the rotating bracket 423 to rotate; when the rotating bracket 423 moves, the rotating bracket 423 drives the blade-type polarizer 422 to rotate with the limiting hole 4221 as the center. During the rotation of the blade-type polarizer 422, the second limiting column 4231 will move in the sliding groove 4222, from one end of the sliding groove 4222 to the other end. During the movement, the blade-type polarizer 422 is moved out and in in the direction of the optical path, thereby realizing the switching of the polarization component 42 between the polarized imaging state and the conventional imaging state.

[0133] It should be understood that the direction of the current flowing into the coil 461 is adjustable, which can change the direction of the magnetic field generated by the current, thereby changing the direction of the movement of the driving magnetic component 462, so that the blade-type polarizer 422 can be moved out of the light path direction or moved into the light path direction.

[0134] Under the action of the first driving component 46 , the polarization component 42 can switch between the polarization imaging state and the normal imaging state.

[0135] In some possible implementations, the first driving component 46 may be a brushless motor or an ultrasonic motor, which is not limited in the embodiments of the present application.

[0136] When the polarization component 42 switches to the polarization imaging state, when the incident light enters the lens module 40 and passes through the polarization component 42, the photosensitive element 44 can receive polarization information with a polarization angle. In order to achieve the purpose of three-dimensional stereoscopic imaging, the photosensitive element 44 needs to obtain polarization information at four different polarization angles of 0 degrees, 45 degrees, 90 degrees and 135 degrees.

[0137] Based on the above technical solution, the lens module 40 can switch between the polarized imaging state and the conventional imaging state, thereby realizing the polarized three-dimensional stereo imaging function of a single lens and a single sensor without affecting the conventional shooting and imaging functions of the lens module.

[0138] FIG6 is a partial schematic diagram of a blade-type polarizer provided in an embodiment of the present application, including a schematic diagram of a blade-type array polarizer and a schematic diagram of a blade-type linear polarizer; as shown in FIG6(a), there are three blade-type array polarizers in the polarization component, FIG6(b) shows four blade-type array polarizers, and FIG6(c) shows five blade-type array polarizers. Each blade-type array polarizer is integrated with micro-polarization array units with four different polarization angles of 0 degrees, 45 degrees, 90 degrees, and 135 degrees. The embodiment of the present application does not limit the number of blade-type array polarizers in the polarization component.

[0139] Similarly, as shown in (d) in Figure 6, the polarization component has three leaf-type linear polarizers, Figure 6 (e) has four leaf-type linear polarizers, and Figure 6 (f) has five leaf-type linear polarizers. The embodiments of the present application do not limit the number of leaf-type linear polarizers.

[0140] When the leaf-type polarizer 422 of the polarization component 42 is a leaf-type array polarizer, the leaf-type array polarizer has integrated micro-polarization array units with four different polarization angles of 0 degrees, 45 degrees, 90 degrees and 135 degrees. Therefore, when the incident light enters the lens module 40 and passes through the polarization component 42, the photosensitive element 44 can simultaneously obtain polarization information at four polarization angles. These polarization information are sent to the central processing unit, and the central processing unit can obtain four Stokes vectors based on these polarization information, and then reconstruct the three-dimensional object based on the four Stokes vectors.

[0141] When the leaf-type polarizer 422 of the polarization assembly 42 is a leaf-type linear polarizer, even if the polarization assembly 42 is switched to the polarization imaging state, the photosensitive element 44 can only obtain polarization information at a single polarization angle at that moment. To enable the photosensitive element 44 to obtain polarization information at different polarization angles, the polarization module is further provided with a second drive assembly 47, which is used to drive the polarization assembly 42 to rotate along the center of the polarization assembly 42 in a plane perpendicular to the incident light.

[0142] In some possible implementations, the second drive component 47 can be connected to the base 424 of the polarization component 42. Since the other components of the polarization component 42 are arranged on the base 424, when the second drive component 47 drives the base 424 to rotate, it can drive the entire polarization component 42 to rotate together, thereby realizing the change of the polarization angle of the polarization component 42.

[0143] The second driving component 47 may be a brushless motor. A possible implementation method of the second driving component 47 driving the polarization component 42 to rotate is described below.

[0144] Figure 8 is a structural schematic diagram of another polarization component provided in an embodiment of the present application. As shown in Figure 8, the second driving component 47 includes a limiting ring 470, the limiting ring 470 includes a hollow portion and an annular groove, the polarization component 42 is arranged in the hollow portion, and a stator coil 471 is arranged in the annular groove. (b) in Figure 8 shows a schematic diagram of the arrangement of the stator coil 471 in the annular groove of the limiting ring 470, and multiple stator coils 471 are arranged in the annular groove of the limiting ring 47.

[0145] The polarization component 42 is arranged in the internal hollow part of the limit ring 470, and the movable magnetic component 472 is also arranged on both sides of the polarization component 42; the stator coil 471 can be connected to an external power supply so that current can be set in the stator coil 471; when the stator coil 471 is energized, a magnetic field will be generated around the stator coil 471, so that the stator coil 471 has magnetism. Under the action of the magnetic force, the energized stator coil 471 can drive the movable magnetic component 472 to move. Under the action of the magnetic force, the movable magnetic component 472 can drive the polarization component 42 to rotate together, thereby realizing the change of the polarization angle of the polarization component 42.

[0146] It should be understood that the direction of the current flowing into the stator coil 471 is adjustable, which can change the direction of the magnetic field generated by the current, thereby changing the direction of rotation of the mover magnetic component 472. In other words, the polarization component 42 can rotate either counterclockwise or clockwise under the action of the second drive component 47.

[0147] In some possible implementations, the mover magnetic component 472 may be a permanent magnet or a magnet; the second driving component 47 may also be an ultrasonic motor, which is not limited in the embodiments of the present application.

[0148] It should be understood that when the leaf-type polarizer 422 is a liquid crystal polarizer, the external electric field applied to the liquid crystal can be adjusted so that the polarization angle of the liquid crystal polarizer can be freely adjusted; in particular, it can be switched between 0 degrees, 45 degrees, 90 degrees, and 135 degrees, thereby realizing three-dimensional polarization imaging; therefore, when the leaf-type polarizer 422 is a liquid crystal polarizer, there is no need for the second drive component 47 to drive the polarization component 42 to rotate.

[0149] Figure 7 is a partial schematic diagram of (c) in Figure 5. As shown in (a) in Figure 7, the polarization angle of the current polarizer is 90 degrees; after rotating 45 degrees clockwise, the polarizer with a polarization angle of 45 degrees shown in (b) in Figure 7 is obtained; on this basis, the rotation is continued by 45 degrees to obtain the polarizer with a polarization angle of 0 degrees shown in (c) in Figure 7; on this basis, the rotation is continued by 45 degrees to obtain the polarizer with a polarization angle of 135 degrees shown in (d) in Figure 7. After further rotating 45 degrees, it returns to the polarizer with a polarization angle of 90 degrees shown in (a) in Figure 7.

[0150] When the polarization component rotates under the drive of the second driving component, the polarization angle of the polarization component can be freely adjusted within 0-360 degrees;

[0151] When the polarization angle of the polarization component is rotated to a specific angle, the reflected light and stray light brought by the incident light can be filtered out to obtain better imaging effects.

[0152] Driven by the second driving component, the polarization angle of the polarization component can be switched between 0 degrees, 45 degrees, 90 degrees and 135 degrees. The lens module collects polarization information once at each polarization angle, and can obtain polarization information at four polarization angles. These polarization information are sent to the central processing unit. The central processing unit obtains four Stokes vectors based on these polarization information, and then reconstructs the three-dimensional object based on the four Stokes vectors.

[0153] It should be understood that the above uses the lens module 40 as an example to illustrate the setting method of the polarization component. In the lens module 50, corresponding polarization components, first drive components, second drive components and other structures can also be set. For the sake of brevity, they will not be repeated here.

[0154] The embodiment of the present application further provides a polarization module, which includes a polarization component and a first driving component;

[0155] In a possible implementation, the polarization module includes a polarization component, a first driving component, and a second driving component.

[0156] The relevant settings of the polarization module can refer to the relevant description of the polarization component 42 in the lens module 40, and for the sake of brevity, they are not repeated here.

[0157] Those skilled in the art will appreciate that the units and algorithm steps of each example described in conjunction with the embodiments disclosed herein can be implemented in electronic hardware, or a combination of computer software and electronic hardware. Whether these functions are performed in hardware or software depends on the specific application and design constraints of the technical solution. Professional and technical personnel can use different methods to implement the described functions for each specific application, but such implementation should not be considered beyond the scope of this application.

[0158] Those skilled in the art will clearly understand that, for the convenience and brevity of description, the specific working processes of the systems, devices and units described above can refer to the corresponding processes in the aforementioned method embodiments and will not be repeated here.

[0159] In the several embodiments provided in this application, it should be understood that the disclosed systems, devices and methods can be implemented in other ways. For example, the device embodiments described above are merely schematic. For example, the division of the units is merely a logical function division. In actual implementation, there may be other division methods, such as multiple units or components can be combined or integrated into another system, or some features can be ignored or not executed. Another point is that the mutual coupling or direct coupling or communication connection shown or discussed can be through some interfaces, indirect coupling or communication connection of devices or units, which can be electrical, mechanical or other forms.

[0160] The units described as separate components may or may not be physically separate, and the components shown as units may or may not be physical units, that is, they may be located in one place or distributed across multiple network units. Some or all of these units may be selected to achieve the purpose of this embodiment according to actual needs.

[0161] In addition, each functional unit in each embodiment of the present application may be integrated into one processing unit, or each unit may exist physically separately, or two or more units may be integrated into one unit.

[0162] If the functions are implemented in the form of software functional units and sold or used as independent products, they can be stored in a computer-readable storage medium. Based on this understanding, the technical solution of the present application, or the part that contributes to the prior art, or the part of the technical solution, can be embodied in the form of a software product. The computer software product is stored in a storage medium and includes several instructions for enabling a computer device (which can be a personal computer, a server, or a network device, etc.) to execute all or part of the steps of the method described in each embodiment of the present application. The aforementioned storage medium includes various media that can store program codes, such as a USB flash drive, a mobile hard disk, a read-only memory (ROM), a random access memory (RAM), a magnetic disk, or an optical disk.

[0163] The above description is merely a specific embodiment of the present application, but the scope of protection of the present application is not limited thereto. Any changes or substitutions that can be easily conceived by a person skilled in the art within the technical scope disclosed in this application should be included in the scope of protection of this application. Therefore, the scope of protection of this application should be based on the scope of protection of the claims.

Claims

1. A lens module (40), characterized in that: The lens module (40) comprises a polarization module and a photosensitive element (44), wherein the polarization module comprises: A polarization component (42), the polarization component (42) being provided with at least two blade-type polarizers (422), a rotating bracket (423), and a base (424), the at least two blade-type polarizers (422) being provided on the rotating bracket (423), and the rotating bracket (423) being provided on the base (424); a first driving component (46), the polarization component (42) being connected to the first driving component (46), the first driving component (46) being used to drive the at least two blade-type polarizers (422) to switch between a closed state and a separated state; In the closed state, the at least two leaf-type polarizers (422) are tightly closed to perform polarization processing on incident light; In the separated state, the at least two blade-type polarizers (422) are separated to a position away from the center of the polarization component (42), a gap is formed between the at least two blade-type polarizers (422), and the incident light passes through the gap; The photosensitive element (44) is used to receive the incident light.

2. The lens module (40) according to claim 1, characterized in that: The first driving component (46) includes a coil (461) and a magnetic component (462), wherein the coil (461) is connected to the rotating bracket (423), and the magnetic component (462) is connected to the base (424). The coil (461) and the magnetic component (462) are arranged correspondingly, and the coil (461) is connected to an external power supply.

3. The lens module (40) according to claim 1 or 2, characterized in that: Each of the blade-type polarizers (422) is provided with a limiting hole (4221), and the base (424) is provided with first limiting posts (4241) corresponding in number to the limiting holes (4221), the first limiting posts (4241) being inserted into the limiting holes (4221); Each of the blade-type polarizers (422) is provided with a sliding slot (4222), and the rotating bracket (423) is provided with second limiting posts (4231) corresponding in number to the sliding slots (4222), and the second limiting posts (4231) are inserted into the sliding slots (4222); each of the blade-type polarizers (422) rotates around the first limiting post (4241).

4. The lens module (40) according to any one of claims 1 to 3, characterized in that: Each of the blade-type polarizers (422) is a blade-type array polarizer, and the blade-type array polarizer is provided with four different micro-polarization array units whose polarization angles conform to an arithmetic progression relationship, and the tolerance of the arithmetic progression is 45 degrees.

5. The lens module (40) according to claim 4, characterized in that: The polarization angles of the four different micro-polarization array units are respectively 0 degree, 45 degrees, 90 degrees or 135 degrees.

6. The lens module (40) according to claim 4 or 5, characterized in that: The polarization component (42) is arranged on the object side of the photosensitive element (44).

7. The lens module (40) according to any one of claims 1 to 3, characterized in that: Each of the leaf-type polarizers (422) is a leaf-type linear polarizer; The polarization module further comprises a second driving component (47), and the second driving component (47) is used to drive the polarization component (42) to rotate along the center of the polarization component (42) on a plane perpendicular to the incident light.

8. The lens module (40) according to claim 7, characterized in that: The angle at which the polarization component (42) is rotated along the center of the polarization component (42) on a plane perpendicular to the incident light is 0 degrees, 45 degrees, 90 degrees or 135 degrees.

9. The lens module (40) according to claim 7 or 8, characterized in that: The second driving component (47) includes a limiting ring (470), the limiting ring (470) includes a hollow portion and an annular groove, the polarization component is arranged in the hollow portion, a stator coil (471) is arranged in the annular groove, a mover magnetic component (472) is arranged on the polarization component, the stator coil (471) and the mover magnetic component (472) are arranged correspondingly, and the stator coil (471) is connected to an external power supply.

10. The lens module (40) according to any one of claims 7 to 9, characterized in that: The blade-type linear polarizer includes any one of a dielectric film polarizer, a metal wire grid polarizer or a liquid crystal polarizer.

11. The lens module (40) according to any one of claims 1 to 10, characterized in that: The number of the blade-type polarizers (422) is three.

12. The lens module (40) according to any one of claims 1 to 11, characterized in that: The lens module (40) further includes: A lens assembly comprising an aperture (41) along a propagation direction of the incident light and a first lens group (43); The polarization component (42) is located on the object side or the image side of the first lens group (43), and the photosensitive element (44) is located at the end of the incident direction of the incident light.

13. The lens module (40) according to claim 12, characterized in that: The polarization component (42) is arranged between the lenses of the first lens group (43).

14. The lens module (40) according to claim 12 or 13, characterized in that: The lens assembly further comprises a second lens group (55) and a first reflector (54), wherein the first reflector (54) is located between the first lens group (53) and the second lens group (55), and the first reflector (54) is used to change the incident direction of the incident light.

15. The lens module (40) according to claim 14, characterized in that: The lens assembly further comprises a second reflective member (58), the second reflective member (58) being located between the second lens group (55) and the photosensitive element (57), and the second reflective member (58) being used to change the incident direction of the incident light.

16. The lens module (40) according to any one of claims 12 to 15, characterized in that: The lens assembly further comprises a color filter (45), and the color filter (45) is arranged on the object side of the photosensitive element (44).

17. A polarization module, characterized in that: The polarization module includes: A polarization component (42), the polarization component (42) being provided with at least two blade-type polarizers (422), a rotating bracket (423), and a base (424), the at least two blade-type polarizers (422) being provided on the rotating bracket (423), and the rotating bracket (423) being provided on the base (424); a first driving component (46), the polarization component (42) being connected to the first driving component (46), the first driving component (46) being used to drive the at least two blade-type polarizers (422) to switch between a closed state and a separated state; In the closed state, the at least two leaf-type polarizers (422) are tightly closed to perform polarization processing on incident light; In the separated state, the incident light passes through the gap between the at least two leaf-type polarizers (422).

18. An electronic device, characterized in that: The electronic device comprises the lens module (40) according to any one of claims 1 to 16, or the electronic device comprises the polarization module according to claim 17.

Images