Camera module, polarization device and imaging method

Abstract

This invention discloses a camera module, its polarization device, and an imaging method. The camera module includes a module device and a polarization device disposed in the photosensitive path of the module device. The polarization device further includes a driving unit and a polarization unit. The polarization unit is drivably connected to the driving unit. The driving unit is configured to drive the polarization unit to move into the photosensitive path of the module device and to drive the polarization unit away from the photosensitive path of the module device. The polarization unit includes a polarizer, the polarization angle of which can be changed. Thus, the camera module can achieve clear imaging in various shooting environments.

Description

Technical Field

[0001] This invention relates to optical imaging devices, and more particularly to a camera module, its polarization device, and imaging method. Background Technology

[0002] In recent years, camera modules for imaging have become a standard accessory for portable electronic devices (e.g., smartphones), and the market has placed higher demands on their imaging quality. To achieve higher imaging quality, in addition to focusing on the hardware (e.g., image sensors, filters, lenses), adjustments to parameters for different shooting environments also need to be considered. Those skilled in the art should understand that the brightness of an image captured by a camera module is related to its exposure, which in turn is related to the amount of light entering the camera module. Both overexposure and underexposure will affect image sharpness.

[0003] There are polarizing filters on the market that both block and transmit incident light. These filters can be mounted on the outside of camera lenses (e.g., SLR and mirrorless cameras). When shooting outdoors, such as landscapes or scenery, the polarizing filter is mounted on the outside of the lens to help adjust the shooting environment parameters, thus clearly expressing the texture of strongly reflective areas of the subject or landscape. Conversely, when shooting in low-light environments, the polarizing filter needs to be moved away from the outside of the camera lens to prevent the image from being too dark and affecting image quality.

[0004] Existing polarizers, as accessories for bulky cameras, require manual installation and removal. This makes them unsuitable for use in camera modules, which are standard accessories for portable electronic devices. Therefore, integrating the functionality of a polarizer into a camera module is a technical problem that the inventors of this invention have been working to solve. Furthermore, existing polarizers require manual rotation to adjust their polarization effect, increasing the difficulty of use and preventing their application in camera modules, which are standard accessories for portable electronic devices. Summary of the Invention

[0005] One object of the present invention is to provide a camera module, a polarization device thereof, and an imaging method thereof, wherein the camera module provides a module device and a polarization device disposed on the module device, the polarization device being configured to switch between a polarization state and a non-polarization state, so as to allow the camera module to achieve clear imaging in a variety of shooting environments.

[0006] One object of the present invention is to provide a camera module, a polarization device thereof, and an imaging method thereof, wherein the polarization device provides a driving unit and a polarization unit drivably connected to the driving unit, the driving unit being capable of driving the polarization unit to move to the photosensitive path of the module device to allow the polarization device to be in the polarized state, thus the camera module is suitable for imaging in a bright light environment, and the driving unit being capable of driving the polarization unit to move away from the photosensitive path of the module device to allow the polarization device to be in the non-polarized state, thus the camera module is suitable for imaging in a low light environment.

[0007] One object of the present invention is to provide a camera module, a polarization device thereof, and an imaging method thereof, wherein the driving unit switches the polarization device between a polarization state and a non-polarization state by driving the polarization unit to translate, so that the state adjustment of the polarization device does not require occupying height space, which helps to reduce the height of the camera module.

[0008] One object of the present invention is to provide a camera module and a polarization device and imaging method thereof, wherein the driving unit provides a mounting base and a driven member, the polarization unit is drivably mounted on the driven member, and when the driven member is driven to rotate relative to the mounting base, the driven member drives the polarization unit to translate it, thereby enabling the polarization device to switch between the polarization state and the non-polarization state and avoiding occupying height space.

[0009] One object of the present invention is to provide a camera module and its polarization device and imaging method, wherein the polarization unit provides a polarization driver and a polarization mechanism, and the polarization driver can change the polarization angle of a polarizer of the polarization mechanism by driving the polarization mechanism to rotate, thereby allowing the polarization device in the polarization state to provide different polarization effects.

[0010] One object of the present invention is to provide a camera module and its polarization device and imaging method, wherein the polarizer of the polarization mechanism is a liquid crystal polarizer, and the polarization direction of the polarizer can be changed by applying an electric field to the polarizer, thereby allowing the polarization device in the polarization state to provide different polarization effects.

[0011] One object of the present invention is to provide a camera module, its polarization device, and imaging method, wherein, compared with the existing method that requires manual rotation of the polarizer, the polarization device of the present invention adjusts the angle of the polarizer by driving the polarizer to rotate through the polarization driver, which reduces the difficulty of adjusting the angle of the polarizer and improves the accuracy of the adjustment result, thereby improving the imaging effect of the camera module.

[0012] One object of the present invention is to provide a camera module and its polarization device and imaging method, wherein the polarization device provides a flexible circuit board, the flexible circuit board being bendably connected to a first substrate of the driving unit and a second substrate of the polarization unit, such that the flexible circuit board provides sufficient translational travel for the polarization unit by unfolding, thereby ensuring the reliability and stability of the polarization device.

[0013] According to one aspect of the present invention, a camera module is provided, comprising a module device and a polarizing device disposed in the photosensitive path of the module device, wherein the polarizing device further comprises:

[0014] One drive unit; and

[0015] A polarization unit, wherein the polarization unit is drivably connected to the driving unit, the driving unit being configured to drive the polarization unit to move to the photosensitive path of the module device and to drive the polarization unit to move away from the photosensitive path of the module device, wherein the polarization unit includes a polarizer whose polarization angle can be changed.

[0016] According to one embodiment of the present invention, the polarizer is a circular polarizer, whose polarization angle is changed by being rotated.

[0017] According to one embodiment of the present invention, the polarizer is a liquid crystal polarizer, whose polarization angle is changed by applying an electric field.

[0018] According to one embodiment of the present invention, the polarization unit includes a polarization seat, a polarization bracket, a substrate, and a polarization driver. The polarization seat has a through polarization space, the polarization bracket surrounds the polarizer, and the polarization bracket and the polarizer are rotatably held within the polarization space of the polarization seat. The substrate is disposed on the polarization seat. The polarization driver includes at least one set of coils and at least one magnet. The set of coils is connected to the substrate, and the magnet is disposed on the polarization bracket. The positions of the magnet and the set of coils correspond so that when the coils are powered, the magnetic field generated by the coils interacts with the magnet to drive the polarization bracket and the polarizer to rotate relative to the polarization seat.

[0019] According to one embodiment of the present invention, the polarization unit further includes at least one ball, which is rotatably held between the polarization seat and the polarization bracket.

[0020] According to one embodiment of the present invention, the substrate is disposed on the top side of the polarizer.

[0021] According to one embodiment of the present invention, the polarization device further includes a flexible circuit board, the opposite sides of which are respectively connected to the substrate of the polarization unit and the substrate of the driving unit.

[0022] According to one embodiment of the present invention, the flexible circuit board is bendable.

[0023] According to another aspect of the invention, the invention further provides a polarization device that can be disposed in the photosensitive path of a module device, wherein the polarization device includes a driving unit and a polarization unit drivably connected to the driving unit, and has a polarization state and a non-polarization state, wherein the polarization device is in the polarization state when the driving unit drives the polarization unit to be moved in a translational manner to the photosensitive path of the module device, and correspondingly, the polarization device is in the non-polarization state when the driving unit drives the polarization unit to be moved in a translational manner away from the photosensitive path of the module device.

[0024] According to one embodiment of the present invention, the driving unit further includes a mounting base, a driven member, a first substrate, and a translation driver, wherein the mounting base has a first central through hole, the driven member has a second central through hole, the driven member is rotatably held on the top side of the mounting base such that the second central through hole of the driven member corresponds to the first central through hole of the mounting base, wherein the first substrate is disposed on the mounting base, wherein the translation driver includes at least one set of first coils and at least one set of first magnets, the set of first coils is connected to the first substrate, the set of first magnets is disposed on the driven member, the positions of the set of first coils and the set of first magnets are corresponding so that when the set of first coils is powered, the magnetic field generated by the set of first coils and the set of first magnets interact to drive the driven member to rotate relative to the mounting base about the central axis of the second central through hole of the driven member and the first central axis of the mounting base, wherein the polarization unit is drivably mounted on the driven member.

[0025] According to one embodiment of the present invention, the drive unit further includes at least one first ball, which is rotatably held between the mounting base and the driven member.

[0026] According to one embodiment of the present invention, the mounting base has at least one side perforation located outside the first central perforation, wherein the first substrate is disposed on the bottom side of the mounting base, and a set of the first magnets is held in the side perforation of the mounting base.

[0027] According to one embodiment of the present invention, the driving unit further includes a first cover having a fourth central through hole and a guide groove located outside the fourth central through hole, wherein the first cover is disposed on the mounting base such that the first cover irradiates the outside of the driven member and the fourth central through hole of the first cover corresponds to the second central through hole of the driven member, wherein the driven member has a mounting convex shaft, the mounting convex shaft being movably held in the guide groove of the first cover, wherein the mounting convex shaft of the driven member is mounted on the polarization unit.

[0028] According to one embodiment of the present invention, the polarization unit further includes a polarization seat, a polarization mechanism, a second substrate, and a polarization driver. The polarization seat has a through polarization space. The polarization mechanism includes a polarizer and a polarization support surrounding the polarizer. The polarization mechanism is rotatably held in the polarization space of the polarization seat. The second substrate is disposed on the polarization seat. The polarization driver includes at least one set of second coils and at least one second magnet. The set of second coils is connected to the second substrate, and the second magnet is disposed on the polarization support. The positions of the set of second coils and the second magnet correspond so that when the second coils are powered, the magnetic field generated by the set of second coils interacts with the second magnet to drive the polarization mechanism to rotate relative to the polarization seat in the polarization space. The polarization seat is drivably connected to the driving unit.

[0029] According to one embodiment of the present invention, the polarization unit further includes at least one second ball, which is rotatably held between the polarization seat and the polarization bracket.

[0030] According to one embodiment of the present invention, the polarization device further includes a flexible circuit board, wherein the flexible circuit board is connected to the substrate of the driving unit and the substrate of the polarization unit in a bendable manner.

[0031] According to one embodiment of the present invention, the polarization device further includes a flexible circuit board, wherein the flexible circuit board is connected to the first substrate of the driving unit and the second substrate of the polarization unit in a bendable manner.

[0032] According to another aspect of the present invention, the present invention further provides an imaging method for a camera module, wherein the imaging method includes the following steps:

[0033] (a) Allow a camera module to capture a first image;

[0034] (b) Analyze information from multiple feature regions of the first image;

[0035] (c) Adjusting the state of a polarization device of the camera module and / or changing the polarization angle of a polarizer of the polarization device based on the analysis results; and

[0036] (d) Allow the camera module to capture a second image and thus form an image.

[0037] According to one embodiment of the present invention, in step (c), the polarizer is a circular polarizer, so that the polarization angle of the polarizer can be changed by rotating the polarizer; or the polarizer is a liquid crystal polarizer, so that the polarization angle of the polarizer can be changed by applying an electric field. Attached Figure Description

[0038] Figure 1 This is a perspective view of a camera module according to a preferred embodiment of the present invention.

[0039] Figure 2 This is a cross-sectional schematic diagram illustrating the process of a polarization device of the camera module according to the above-described preferred embodiment of the present invention switching from a non-polarized state to a polarized state.

[0040] Figure 3A This is a perspective view of the polarization device of the camera module according to the above-described preferred embodiment of the present invention.

[0041] Figure 3B This is a perspective view of the polarization device of the camera module according to the above-described preferred embodiment of the present invention.

[0042] Figure 4 This is an exploded view of the polarization device of the camera module according to the above-described preferred embodiment of the present invention.

[0043] Figure 5 This is a cross-sectional schematic diagram of the polarization device of the camera module according to the above-described preferred embodiment of the present invention.

[0044] Figure 6A This is an exploded view of a driving unit of the polarization device of the camera module according to the above-described preferred embodiment of the present invention.

[0045] Figure 6B This is an exploded view of the driving unit of the polarization device of the camera module according to the above-described preferred embodiment of the present invention.

[0046] Figure 7 This is a cross-sectional schematic diagram of the driving unit of the polarization device of the camera module according to the above-described preferred embodiment of the present invention.

[0047] Figure 8A yes Figure 7 An enlarged schematic diagram of a local location.

[0048] Figure 8B yes Figure 7 An enlarged diagram of another local location.

[0049] Figure 9A This is an exploded view of a polarization unit of the polarization device of the camera module according to the above-described preferred embodiment of the present invention.

[0050] Figure 9B This is an exploded view of the polarization unit of the polarization device of the camera module according to the above-described preferred embodiment of the present invention.

[0051] Figure 10 This is a cross-sectional schematic diagram of the polarization unit of the polarization device of the camera module according to the above-described preferred embodiment of the present invention.

[0052] Figure 11 yes Figure 10 A magnified diagram of a local location.

[0053] Figure 12 This is a top view schematic diagram of the polarization device of the camera module according to the above preferred embodiment of the present invention switching from a non-polarized state to a polarized state.

[0054] Figure 13 This is a cross-sectional schematic diagram of a modified example of the polarization device of the camera module according to the above-described preferred embodiment of the present invention.

[0055] Figure 14 yes Figure 13 A magnified diagram of a local location. Detailed Implementation

[0056] Before detailing any embodiment of the invention, it should be understood that the invention is not limited in its application to the details of the construction and arrangement of the components set forth in the following description or illustrated in the following figures. The invention can have other embodiments and can be practiced or carried out in various ways. Furthermore, it should be understood that the wording and terminology used herein are for descriptive purposes and should not be considered limiting. The use of “comprising,” “including,” or “having,” and variations thereof is intended to cover the items set forth below and their equivalents, as well as any additional items. Unless otherwise specified or limited, the terms “installation,” “connection,” “support,” and “linkage,” and variations thereof are used broadly and cover both direct and indirect installation, connection, support, and linking. Moreover, “connection” and “linkage” are not limited to physical or mechanical connections or links.

[0057] Furthermore, firstly, in the disclosure of this invention, the terms "longitudinal," "lateral," "upper," "lower," "front," "rear," "left," "right," "vertical," "horizontal," "top," "bottom," "inner," and "outer," etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. They are only for the convenience of describing this invention and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, the above terms should not be construed as limiting this invention. Secondly, the term "a" should be understood as "at least one" or "one or more," that is, in one embodiment, the number of an element can be one, while in another embodiment, the number of the element can be multiple. The term "a" should not be construed as a limitation on the quantity.

[0058] Refer to the accompanying drawings of the specification of this invention. Figures 1 to 12 A preferred embodiment of the present invention is disclosed and described below, wherein the camera module includes a module device 1000 and a polarizing device 2000 disposed in the photosensitive path of the module device 1000, the polarizing device 2000 having a polarized state and a non-polarized state, and the polarizing device 2000 is configured to switch between the polarized state and the non-polarized state. (See attached drawing) Figure 2 When the polarization device 2000 is in the polarization state, incident light is allowed to pass through the polarization function of the polarization device 2000 and enter the interior of the module device 1000 to form an image, thus the camera module is suitable for imaging in bright light environments. When the polarization device 2000 is in the non-polarization state, incident light is allowed to directly enter the interior of the module device 1000 to form an image, thus the camera module is suitable for imaging in low light environments. By allowing the polarization device 2000 to switch between the polarization state and the non-polarization state, the camera module of the present invention is suitable for clear imaging in a variety of shooting environments.

[0059] Continue to refer to the appendix Figure 1 and Figure 2This illustration shows an exemplary embodiment of the camera module device 1000 of the present invention, wherein the module device 1000 includes a circuit board 1001, at least one electronic component 1002, a photosensitive chip 1003, a lens mount 1004, a filter portion 1005, and a lens portion 1006. The electronic component 1002 is mounted on the circuit board 1001. The photosensitive chip 1003 is mounted on the circuit board 1001. The lens mount 1004 is disposed on the circuit board 1001, and the lens mount 1004 is disposed at least around the photosensitive area of ​​the photosensitive chip 1003. The filter portion 1005 is disposed on the top surface of the lens mount 1004 and held in the photosensitive path of the photosensitive chip 1003. The lens portion 1006 includes a lens holder 10061 and an optical lens 10062 disposed on the lens holder 10061. The lens portion 10061 is disposed on the top surface of the lens mount 1004 such that the optical lens 10062 is held in the light-sensitive path of the photosensitive chip 1003. Incident light, after passing sequentially through the optical lens 10062 and the filter portion 1005, can be received by the photosensitive chip 1003, which can perform photoelectric conversion to form an image.

[0060] It is worth mentioning that the manner in which the lens mount 1004 is disposed on the circuit board 1001 is not limited in the camera module of the present invention. For example, in the attached... Figure 1 and Figure 2 In this specific example of the camera module shown, the lens mount 1004 is integrally integrated with the circuit board 1001 and embeds the electronic component 1002, such that the lens mount 1004 surrounds the photosensitive chip 1003. Preferably, the lens mount 1004, integrally integrated with the circuit board 1001 and embedding the electronic component 1002, can be further integrated with at least a portion of the non-photosensitive area of ​​the photosensitive chip 1003, such that the lens mount 1004 surrounds the photosensitive area of ​​the photosensitive chip 1003. Optionally, the lens mount 1004 is prefabricated, wherein the lens mount 1004 can be glued to the circuit board 1001, and the lens mount 1004 surrounds the photosensitive chip 1003.

[0061] Continue to refer to the appendix Figure 1 and Figure 2The filtering portion 1005 further includes a filter holder 10051 and a filter 10052 disposed on the filter holder 10051. The filter holder 10051 is mounted to the top surface of the lens mount 1004 such that the filter 10052 is held in the light-sensing path of the photosensitive chip 1003, allowing the filter 10052 to filter stray light, such as infrared light, from the incident light, thereby improving the imaging effect of the camera module. By placing the filter 10052 on the filter holder 10051 and mounting the filter holder 10051 on the top surface of the lens mount 1004, the size of the filter 10052 can be reduced, thereby lowering the cost of the camera module.

[0062] Furthermore, the type of the lens holder 10061 of the lens portion 1006 is not limited in the camera module of the present invention. For example, the lens holder 10061 may be a lens barrel to make the camera module a fixed-focus camera module, or the lens holder 10061 may be a driver (e.g., a voice coil motor) to make the camera module a zoom camera module.

[0063] Continue to refer to the appendix Figures 1 to 12 The polarization device 2000 includes a driving unit 10 and a polarization unit 20 drivably connected to the driving unit 10. The driving unit 10 can be disposed on the lens holder 10061 of the lens portion 1006 of the module device 1000 to integrate the polarization device 2000 on the outside of the optical lens 10062 of the lens portion 1006 of the module device 1000. The polarization unit 20 can be moved by the driving unit 10 to a position corresponding to the optical lens 10062 to put the polarization device 2000 in the polarization state, so as to allow the camera module to be adapted to imaging in a strong light environment. Correspondingly, the polarization unit 20 can be moved by the driving unit 10 away from the position corresponding to the optical lens 10062 to put the polarization device 2000 in the non-polarization state, so as to allow the camera module to be adapted to imaging in a weak light environment.

[0064] Preferably, the driving unit 10 allows the polarizing unit 20 to be moved to a position corresponding to the optical lens 10062 by driving the polarizing unit 20 to be in the polarized state, and allows the polarizing unit 20 to be moved away from the position corresponding to the optical lens 10062 to be in the non-polarized state. (Refer to the attached diagram.) Figure 2 and Figure 12 Thus, the state adjustment of the polarization device 2000 does not require a height space, which helps to reduce the height of the camera module.

[0065] Specifically, see the attached document. Figures 1 to 8B The drive unit 10 includes a mounting base 11 and a driven member 12, wherein the mounting base 11 has a first central through hole 111, and the driven member 12 has a second central through hole 121. The driven member 12 is rotatably held on the top side of the mounting base 11 such that the second central through hole 121 of the driven member 12 corresponds to and communicates with the first central through hole 111 of the mounting base 11. The bottom side of the mounting base 11 is fixedly mounted to the lens holder 10061 such that the second central through hole 121 of the driven member 12 and the first central through hole 111 of the mounting base 11 correspond to the optical lens 10062. The drive unit 10 is thus disposed in the lens holder 10061 of the lens portion 1006. Incident light is allowed to enter the module device 1000 by passing sequentially through the second central perforation 121 of the driven member 12 and the first central perforation 111 of the mounting base 11. Subsequently, the incident light entering the module device 1000 can be received by the photosensitive chip 1003 after passing sequentially through the optical lens 10062 and the filter portion 1005.

[0066] It is worth mentioning that the way the mounting base 11 of the drive unit 10 is fixedly mounted to the lens holder 10061 of the lens portion 1006 is not limited in the camera module of the present invention. For example, the bottom side of the mounting base 11 and the end face of the lens holder 10061 can be glued together to fix the mounting base 11 to the lens holder 10061.

[0067] The polarization unit 20 is drivably connected to the driven member 12 of the driving unit 10. When the driven member 12 is driven to rotate relative to the mounting base 11, the driven member 12 can drive the polarization unit 20 to translate synchronously, so as to switch the state of the polarization device 2000 between the polarization state and the non-polarization state. Specifically, when the polarization unit 20 is moved to a position corresponding to the optical lens 10062, the polarization unit 20 covers the second central perforation 121 of the driven member 12, allowing the polarization device 2000 to switch from the non-polarized state to the polarized state. At this time, the incident light needs to pass through the polarization function of the polarization unit 20 before entering the second central perforation 121 of the driven member 12. Correspondingly, when the polarization unit 20 is moved away from the position corresponding to the optical lens 10062, the second central perforation 121 of the driven member 12 is exposed, allowing the polarization device 2000 to switch from the polarized state to the non-polarized state. At this time, the incident light can directly enter the second central perforation 121 of the driven member 12.

[0068] Continue to refer to the appendix Figures 6A to 8B The driving unit 10 further includes a first substrate 13 and a translation driver 14, wherein the first substrate 13 is disposed on the mounting base 11, and wherein the translation driver 14 further includes at least one set of first coils 141 and at least one set of first magnets 142. The set of first coils 141 is connected to the first substrate 13, and the set of first magnets 142 is fixedly disposed on the driven member 12. The positions of the set of first coils 141 and the set of first magnets 142 correspond to each other. Thus, when power is supplied to the set of first coils 141 through the first substrate 13, the magnetic field generated by the set of first coils 141 and the set of first magnets 142 interact to drive the driven member 12 to rotate relative to the mounting base 11 about the central axis of the second central through hole 121 of the driven member 12 and the central axis of the first central through hole 111 of the mounting base 11, thereby driving the polarization unit 20 to translate synchronously and switch the state of the polarization device 2000 between the polarization state and the non-polarization state.

[0069] Preferably, the mounting base 11 further has at least one side through-hole 112, the side through-hole 112 being located outside the first central through-hole 111. The first substrate 13 is attached to the bottom side of the mounting base 11 such that a set of first coils 141 are held in the side through-hole 112 of the mounting base 11, thus the first substrate 13 is disposed on the mounting base 11. A set of first magnets 142 is fixedly disposed on the bottom side of the driven member 12. After the driven member 12 is held on the top side of the mounting base 11, the set of first coils 141 and the set of first magnets 142 can correspond to each other, so that when power is supplied to the set of first coils 141 through the first substrate 13, the magnetic field generated by the set of first coils 141 and the set of first magnets 142 can interact to drive the driven member 12 to rotate relative to the mounting base 11.

[0070] It is worth mentioning that the manner in which a set of the first magnets 142 of the translation driver 14 are fixedly disposed on the bottom side of the driven member 12 is not limited in the camera module of the present invention. For example, in this specific example of the camera module of the present invention, refer to the attached... Figure 6B The driven member 12 has at least one mounting groove 122 on its bottom side, and a set of first magnets 142 are mounted in the mounting groove 122 of the driven member 12, thus fixing a set of first magnets 142 on the bottom side of the driven member 12.

[0071] It is worth mentioning that the number of the first coils 141 in a set of the first coils 141 of the translation driver 14 and the number of the first magnets 142 in a set of the first magnets 142 are not limited in the camera module of the present invention. Preferably, the first coils 141 in a set of the first coils 141 of the translation driver 14 are arranged in an arc shape outside the first central through hole 111 of the mounting base 11, and the first magnets 142 in a set of the first magnets 142 of the translation driver 14 are arranged in an arc shape outside the second central through hole 121 of the driven member 12. For example, in this specific example of the camera module of the present invention, refer to the attached drawing. Figure 6A and Figure 6BThe translation driver 14 has a set of first coils 141 consisting of four first coils 141, and the four first coils 141 are arranged in an arc outside the first central through hole 111 of the mounting base 11. Correspondingly, the translation driver 14 has a set of first magnets 142 consisting of three first magnets 142, and the three first magnets 142 are arranged in an arc outside the second central through hole 121 of the driven member 12.

[0072] Continue to refer to the appendix Figure 6A and Figure 6B The first substrate 13 has a third central through-hole 131. The translation driver 14 includes three sets of first coils 141, which are spaced apart from each other around the third central through-hole 131 of the first substrate 13. Correspondingly, the mounting base 11 has three side through-holes 112, which are spaced apart from each other outside the first central through-hole 111 of the mounting base 11. The first substrate 13 is mounted on the bottom side of the mounting base 11 such that the third central through-hole 131 of the first substrate 13 corresponds to and communicates with the first central through-hole 111 of the mounting base 11. Each set of first coils 141 of the translation driver 14 is held in each of the side through-holes 112 of the mounting base 11. Accordingly, the driven member 12 has three mounting slots 122, which are spaced apart from each other on the outside of the second central through hole 121 of the driven member 12. The translation actuator 14 includes three sets of first magnets 142, each set of first magnets 142 of the translation actuator 14 being mounted in each mounting slot 122 of the driven member 12. With this structure, each set of first magnets 142 of the translation actuator 14 and each set of first coils 141 can correspond to each other, so that when power is supplied to each set of first coils 141 through the first substrate 13, the magnetic field generated by each set of first coils 141 and each set of first magnets 142 interact to smoothly drive the driven member 12 to rotate relative to the mounting base 11.

[0073] Continue to refer to the appendix Figure 6A and Figure 6BThe drive unit 10 further includes at least one first ball 15, which is rotatably held between the driven member 12 and the mounting base 11 to allow the driven member 12 to be rotatably held on the top side of the mounting base 11 in a suspended manner, so that when the driven member 12 is driven to rotate relative to the mounting base 11, the first ball 15 rolls to ensure that the driven member 12 rotates smoothly relative to the mounting base 11.

[0074] Furthermore, the mounting base 11 has at least one first lower limiting groove 113 located outside the first central through hole 111, and the driven member 12 has a first upper limiting groove 123 located outside the second central through hole 121. The first lower limiting groove 113 of the mounting base 11 and the first upper limiting groove 123 of the driven member 12 correspond to each other. A portion of the first ball 15 is rotatably held in the first lower limiting groove 113 of the mounting base 11 and a portion of the first ball 15 is rotatably held in the first upper limiting groove 123 of the driven member 12. This prevents the first ball 15 from disengaging from the mounting base 11 and the driven member 12 when the driven member 12 is driven to rotate relative to the mounting base 11, thereby ensuring the reliability of the drive unit 10.

[0075] Preferably, the drive unit 10 includes three first balls 15, the mounting base 11 has three first lower limiting grooves 113, the three first lower limiting grooves 113 are provided on the outside of the first central through hole 111 of the mounting base 11 in a manner that is spaced apart from each other and surrounds the first central through hole 111 of the mounting base 11, the driven member 12 has three first upper limiting grooves 123, the three first upper limiting grooves 123 are provided on the outside of the second central through hole 121 of the driven member 12 in a manner that is spaced apart from each other and surrounds the second central through hole 121 of the driven member 12, wherein a portion of each first ball 15 is rotatably held in each first lower limiting groove 113 of the mounting base 11, and a portion of each first ball 15 is rotatably held in each first upper limiting groove 123 of the driven member 12, so that the three first balls 15 cooperate with each other to avoid the undesirable phenomenon of tilting of the driven member 12 during the process of being driven to rotate relative to the mounting base 11.

[0076] Reference Appendix Figure 6A and Figure 6BThe top side of the mounting base 11 has at least one blocking block 114, which is located on the side of the first central through hole 111. The periphery of the driven member 12 has at least one blocking protrusion 124, wherein the blocking protrusion 124 of the driven member 12 can be blocked by the blocking block 114 of the mounting base 11 to limit the maximum range of rotation of the driven member 12 relative to the mounting base 11.

[0077] Reference Appendix Figure 4 , Figure 6A and Figure 6B The top side of the driven member 12 has a mounting convex shaft 125, which is fixedly mounted on the polarization unit 20. When the driven member 12 rotates relative to the mounting base 11 about the central axis of the second central through hole 121 of the driven member 12 and the central axis of the first central through hole 111 of the mounting base 11, the mounting convex shaft 125 rotates synchronously about the central axis of the second central through hole 121 of the driven member 12, so as to drive the polarization unit 20 to translate and switch the state of the polarization device 2000 between the polarization state and the non-polarization state.

[0078] Continue to refer to the appendix Figures 4 to 8B The drive unit 10 further includes a first cover 16, which includes a first face mask 161 and an outer extension arm 162 integrally extending downward from the outside of the first face mask 161. The first face mask 161 has a fourth central through hole 1611 and a guide groove 1612 located outside the fourth central through hole 1611. The outer extension arm 162 of the first cover 16 extends to and is mounted on the mounting base 11 such that the first face mask 161 is located outside the driven member 12 and a gap is formed between the first face mask 161 and the driven member 12. The mounting convex shaft 125 of the driven member 12 is movably held in the guide groove 1612 of the first face mask 161, and the second central through hole 121 of the driven member 12 corresponds to and communicates with the fourth central through hole 1611 of the first face mask 161. Thus, the driven member 12 can be hidden to ensure the reliability of the drive unit 10.

[0079] Preferably, the first cover 16 further includes an inner extension arm 163, the inner extension arm 163 extending integrally downward from the inner side of the first mask 161, wherein the inner extension arm 163 of the first cover 16 is located inside the driven member 12, and a gap is formed between the inner extension arm 163 of the first cover 16 and the driven member 12 to avoid friction between the driven member 12 and the first cover 16.

[0080] Continue to refer to the appendix Figure 4 , Figure 5 , Figures 9A to 11 The polarization unit 20 includes a polarization seat 21 and a polarization mechanism 22, wherein the mounting convex shaft 125 of the driven member 12 is fixedly mounted on the polarization seat 21 of the polarization unit 20, and the polarization seat 21 has a through polarization space 211, wherein the polarization mechanism 22 includes a polarizer 221 and a polarization bracket 222 surrounding the polarizer 221, and the polarization bracket 222 is rotatably held in the polarization space 211 of the polarization seat 21. When the driven member 12 of the driving unit 10 is driven to rotate relative to the mounting base 11, the driven member 12 can drive the polarization unit 20 to translate and move the polarization unit 20 to a position corresponding to the optical lens 10062. At this time, the polarizer 221 of the polarization mechanism 22 corresponds to the second central through hole 121 of the driven member 12, so as to allow the polarization device 2000 to switch from the non-polarized state to the polarized state. The incident light needs to pass through the polarizer 221 of the polarization mechanism 22 and then enter the second central through hole 121 of the driven member 12. Accordingly, when the driven member 12 of the driving unit 10 is driven to rotate relative to the mounting base 11, the driven member 12 can drive the polarization unit 20 to translate, causing the polarization unit 20 to be moved away from the position corresponding to the optical lens 10062. At this time, the polarizer 221 of the polarization mechanism 22 exposes the second central through hole 121 of the driven member 12, so as to allow the polarization device 2000 to switch from the polarization state to the non-polarization state, and the incident light can directly enter the second central through hole 121 of the driven member 12.

[0081] When the polarization device 2000 is in the polarization state, the polarization angle of the polarizer 221 can be changed by driving the polarization mechanism 22 to rotate relative to the polarization seat 21 within the polarization space 211 of the polarization seat 21. This allows the polarization device 2000 in the polarization state to provide different polarization effects, thereby enabling the camera module to capture clear images in different shooting environments. Preferably, the polarizer 221 can be, but is not limited to, a circular polarizer.

[0082] Specifically, see the attached document. Figure 9A and Figure 11The polarization unit 20 further includes a second substrate 23 and a polarization driver 24, wherein the polarization driver 24 includes at least one set of second coils 241 and at least one second magnet 242. The set of second coils 241 is connected to the second substrate 23, and the second magnet 242 is fixedly disposed on the polarization support 222 of the polarization mechanism 22. The second substrate 23 is disposed on the top side of the polarization seat 21 such that the set of second coils 241 is held in the polarization space 211 of the polarization seat 21, and the positions of the set of second coils 241 and the second magnet 242 correspond to each other. Thus, when power is supplied to the set of second coils 241 through the second substrate 23, the magnetic field generated by the set of second coils 241 and the second magnet 242 interact to drive the polarization mechanism 22 to rotate relative to the polarization seat 21 within the polarization space 211 of the polarization seat 21, thereby changing the polarization angle of the polarizer 221.

[0083] Preferably, the second substrate 23 is attached to the top side of the polarization seat 21 such that a set of second coils 241 extend to the polarization space 211 of the polarization seat 21. In this arrangement, the second substrate 23 is fixedly disposed on the top side of the polarization bracket 222 of the polarization mechanism 22. With this structure, the set of second coils 241 and the second magnet 242 can correspond to each other. Thus, when power is supplied to the set of second coils 241 through the second substrate 23, the magnetic field generated by the set of second coils 241 and the second magnet 242 can interact to drive the polarization mechanism 22 to rotate within the polarization space 211 of the polarization seat 21, thereby changing the polarization angle of the polarizer 221.

[0084] It is worth mentioning that the way the second magnet 242 of the polarization driver 24 is fixedly disposed on the top side of the polarization bracket 222 of the polarization mechanism 22 is not limited in the camera module of the present invention. For example, in this specific example of the camera module of the present invention, refer to the attached... Figure 9A and Figure 9B The polarization mechanism 22 has at least one mounting groove 2221 on the top side of the polarization bracket 222. The second magnet 242 is mounted in the mounting groove 2221 of the polarization bracket 222 to fix the second magnet 242 to the polarization bracket 222.

[0085] Continue to attach Figures 9A to 11The second substrate 23 has a fifth central through hole 231, wherein the second substrate 23 is mounted on the top side of the polarizing seat 21 in such a way that the fifth central through hole 231 of the second substrate 23 corresponds to and communicates with the polarizing space 211 of the polarizing seat 21, thereby preventing the second substrate 23 from blocking the polarizer 221 of the polarizing mechanism 22.

[0086] Preferably, the polarization driver 24 includes two sets of second coils 241 and two second magnets 242, wherein the two sets of second coils 241 are symmetrically held on opposite sides of the fifth central through hole 231, and the two second magnets 242 are symmetrically held on opposite sides of the polarizer 221 of the polarization mechanism 22, so that one set of second coils 241 and one second magnet 242 can correspond to each other.

[0087] Continue to refer to the appendix Figure 9A and Figure 9B The polarization unit 20 further includes at least one second ball 25, which is rotatably held between the polarization seat 21 and the polarization support 222 of the polarization mechanism 22, so that the polarization mechanism 22 is rotatably held in the polarization space 211 of the polarization seat 21 in a suspended manner. Thus, when the polarization mechanism 22 is driven to rotate relative to the polarization seat 21 in the polarization space 211 of the polarization seat 21, the second ball 25 ensures that the polarization mechanism 22 rotates smoothly relative to the polarization seat 21 in a rolling manner.

[0088] Further, the polarizing seat 21 has at least one second lower limiting groove 212, which is located outside the bottom opening of the polarizing space 211. The polarizing bracket 222 of the polarizing mechanism 22 has a second upper limiting groove 2222, which is located outside the polarizing plate 221 of the polarizing mechanism 22. The second lower limiting groove 212 of the polarizing seat 21 and the second upper limiting groove 2222 of the polarizing bracket 222 correspond to each other. A portion of the second ball bearing 25... A portion of the second ball 25 is rotatably held in the second lower limiting groove 212 of the polarizing seat 21, and a portion of the second ball 25 is rotatably held in the second upper limiting groove 2222 of the polarizing bracket 222 of the polarizing mechanism 22. In this way, when the polarizing mechanism 22 is driven to rotate relative to the polarizing seat 21 in the polarizing space 211 of the polarizing seat 21, the second ball 25 can be prevented from disengaging from the polarizing seat 21 and the polarizing bracket 222 of the polarizing mechanism 22, so as to ensure the reliability of the polarizing unit 20.

[0089] Preferably, the polarization unit 20 includes three second balls 25. Correspondingly, the polarization seat 21 has three second lower limiting grooves 212, which are spaced apart and surround the outside of the bottom opening of the polarization space 211. The polarization bracket 222 of the polarization mechanism 22 has three second upper limiting grooves 2222, which are spaced apart and surround the polarizer 221. A portion of each second ball 25 is rotatably held in each second lower limiting groove 212 of the polarization seat 21, and a portion of each second ball 25 is rotatably held in each second upper limiting groove 2222 of the polarization bracket 222 of the polarization mechanism 22. In this way, the three second balls 25 cooperate with each other to avoid the polarization mechanism 22 from tilting during rotation relative to the polarization seat 21 within the polarization space 212 driven by the polarization seat 21.

[0090] Furthermore, the polarizing seat 21 has at least one defining groove 213, which is formed by a recess in the inner wall of the polarizing seat 21 that defines the polarization space 211, so that the defining groove 213 communicates with the polarization space 211. The polarizing bracket 222 of the polarizing mechanism 22 has at least one defining protrusion 2223 on its outer side, wherein the defining protrusion 2223 of the polarizing bracket 222 is movably held in the defining groove 213 of the polarizing seat 21, wherein the defining protrusion 2223 of the polarizing bracket 222 is only allowed to rotate within the defining groove 213 of the polarizing seat 21, so as to limit the maximum range of rotation of the polarizing mechanism 22 in the polarization space 211 of the polarizing seat 21.

[0091] Preferably, the polarizing seat 21 has two defining grooves 213, which are symmetrically arranged on opposite sides of the polarizing space 211. Correspondingly, the polarizing bracket 222 has two symmetrical defining protrusions 2223, and each defining protrusion 2223 of the polarizing bracket 222 is rotatably held in each defining groove 213 of the polarizing seat 21.

[0092] Furthermore, the polarization unit 20 further includes a second cover 26, the second cover 26 including a second mask 261 and a fixing arm 262 integrally extending downward from the outside of the second mask 261, the second mask 261 having a sixth central through hole 2611. The fixing arm 262 of the second cover 26 extends to and is fixed to the polarization seat 21 such that the second mask 261 is located outside the second substrate 23 and the sixth central through hole 2611 corresponds to the fifth central through hole 231 of the second substrate 23, thereby allowing the second substrate 23 to be hidden and ensuring the reliability of the polarization unit 20.

[0093] Preferably, refer to the appendix Figure 4 , Figure 9A and Figure 9B The polarizing base 21 has a mounting hole 214 at one corner, wherein the mounting convex shaft 125 of the driven member 12 is fixedly mounted in the mounting hole 214 of the polarizing base 21, so that the polarizing unit 20 is drivably connected to the driving unit 10. In other words, the driven member 12 of the driving unit 10 can drive the polarizing unit 20 to translate at one corner of the polarizing base 21 of the polarizing unit 20, so that the driving unit 10 can ensure that the polarizing unit 20 is moved to a position where the polarizer 221 corresponds to the second central through hole 121 of the driven member 12, the first central through hole 111 of the mounting base 11, and the third central through hole 131 of the first substrate 13.

[0094] Further, see attached document. Figure 2 , Figure 4 , Figure 5 , Figure 9A , Figure 9B and Figure 12 The polarization device 2000 includes a flexible circuit board 30, which is bendable. One end of the flexible circuit board 30 extends to and is connected to the first substrate 13 of the driving unit 10, and the other end extends to and is connected to the second substrate 23 of the polarization unit 20. Preferably, the flexible circuit board 30 and the second substrate 23 of the polarization unit 20 are an integral structure. When the polarization device 2000 switches from the non-polarized state to the polarized state, the flexible circuit board 30 can be automatically unfolded by the translating polarization unit 20 to provide sufficient translational stroke for the polarization unit 20. Correspondingly, when the polarization device 2000 switches from the polarized state to the non-polarized state, the flexible circuit board 30 can be automatically bent by the translating polarization unit 20, thus ensuring the reliability and stability of the polarization device 2000.

[0095] Continue to attach Figures 1 to 5 The polarization device 2000 further includes a housing 40, the housing 40 including a housing surface 41 and a housing arm 42, and the housing 40 having a housing space 43 and a light-transmitting hole 44 communicating with the housing space 43, wherein the housing arm 42 extends integrally downward from the outside of the housing surface 41 to form the housing space 43 between the housing arm 42 and the housing surface 41, and the light-transmitting hole 44 is formed in the housing surface 41. The housing arm 42 of the housing 40 extends to and is mounted on the mounting base 11 of the drive unit 10, such that the drive unit 10 and the polarization unit 20 are accommodated in the housing space 43 of the housing 40, thereby forming the general appearance of the polarization device 2000 by the housing 40. The light-transmitting hole 44 of the housing 40 corresponds to and communicates with the second central through hole 121 of the driven member 12 of the drive unit 10, the first central through hole 111 of the mounting base 11, and the third central through hole 131 of the first substrate 13. The light-transmitting hole 44 of the housing 40 can correspond to the fifth central through hole 231 of the second substrate 23 of the polarization unit 20 and the polarization space 211 of the polarization base 21.

[0096] Reference Appendix Figure 2 When the camera module of the present invention needs to image in a low-light environment, the driving unit 10 drives the polarization unit 20 to move away from the position corresponding to the optical lens 10062, so that the polarization device 2000 is in the non-polarized state. At this time, the incident light enters the module device 1000 in sequence through the light-transmitting hole 44 of the housing 40, the fourth central through hole 1611 of the first cover 16, the second central through hole 121 of the driven member 12, the first central through hole 111 of the mounting base 11 and the third central through hole 131 of the first substrate 13. When the camera module needs to image in a strong light environment, the driving unit 10 drives the polarization unit 20 to move to the position corresponding to the optical lens 10062, so that the polarization device 2000 is in the polarization state. At this time, the incident light sequentially enters the module device 1000 through the light-transmitting hole 44 of the housing 40, the sixth central through hole 2611 of the second cover 26, the fifth central through hole 231 of the second substrate 23, the polarizer 221, the polarization space 211 of the polarization seat 21, the fourth central through hole 1611 of the first cover 16, the second central through hole 121 of the driven member 12, the first central through hole 111 of the mounting base 11, and the third central through hole 131 of the first substrate 13.

[0097] Reference Appendix Figure 2 and Figure 12 The polarization device 2000 includes the following series of actions during the switching process from the non-polarized state to the polarized state: First, the first coil 141 is powered through the first substrate 13 to allow the first coil 141 to generate a magnetic field; second, the magnetic field generated by the first coil 141 interacts with the first magnet 142 to drive the driven member 12 to rotate clockwise relative to the mounting base 11. During this process, the first ball 15 held between the driven member 12 and the mounting base 11 ensures that the driven member 12 rotates smoothly clockwise relative to the mounting base 11; third, the driven member 12 drives the polarization unit 20 to translate so that the polarization unit 20 moves to a position where the polarizer 221 of the polarization unit 20 covers the fourth central perforation 1611 of the first cover 16 and corresponds to the optical lens 10062, thus the polarization device 2000 switches from the non-polarized state to the polarized state. Conversely, the process of the polarization device 2000 switching from the polarization state to the non-polarization state includes the following series of actions: First, the first coil 141 is powered through the first substrate 13 to allow the first coil 141 to generate a magnetic field; second, the magnetic field generated by the first coil 141 interacts with the first magnet 142 to drive the driven member 12 to rotate counterclockwise relative to the mounting base 11. During this process, the first ball 15, held between the driven member 12 and the mounting base 11, ensures that the driven member 12 rotates smoothly clockwise relative to the mounting base 11; third, the driven member 12 drives the polarization unit 20 to translate so that the polarization unit 20 moves away from the position of the fourth central perforation 1611 covering the first cover 16, thus the polarization device 2000 switches from the polarization state to the non-polarization state.

[0098] When the polarization device 2000 is in the polarization state, the polarization angle of the polarizer 221 of the polarization unit 20 can be adjusted to allow the camera module to image in different shooting environments. Specifically, firstly, the second coil 241 is powered through the second substrate 23 to allow the second coil 241 to generate a magnetic field; secondly, the magnetic field generated by the second coil 241 interacts with the second magnet 242 to drive the polarization mechanism 22 to rotate relative to the polarization seat 21 within the polarization space 211 of the polarization seat 21, thereby changing the polarization angle of the polarizer 221 of the polarization mechanism 22. This allows the polarization device 2000 in the polarization state to provide different polarization effects, enabling the camera module to image clearly in different shooting environments.

[0099] Appendix Figure 13 and Figure 14 A modified example of the polarization device 2000 of the camera module of the present invention is shown, with reference to the appendix. Figures 1 to 12 The polarization device 2000 of the camera module shown differs from the one in that it has an attached... Figure 13 and Figure 14 In this specific example of the polarization device 2000 shown, the polarizer 221 of the polarization unit 20 is a liquid crystal polarizer, and the second substrate 23 is provided with a driving circuit. The polarization unit 20 further includes a pair of electrodes 27 connected to the polarizer 221 and the second substrate 23. The driving circuit of the second substrate 23 applies an electric field to the polarizer 221 through the pair of electrodes 27 to change the polarization direction of the polarizer 221. This allows the polarization device 2000 in the polarization state to provide different polarization effects, enabling the camera module to achieve clear imaging in different shooting environments.

[0100] According to another aspect of the present invention, the present invention further provides an imaging method, wherein the imaging method includes the following steps:

[0101] (a) Allow the camera module to capture a first image;

[0102] (b) Analyze information from multiple feature regions of the first image;

[0103] (c) Adjusting the state of the polarization device 2000 of the camera module and / or changing the polarization angle of the polarizer 221 of the polarization device 2000 based on the analysis results; and

[0104] (d) Allow the camera module to capture a second image to form an image, so that the camera module can capture a clear image in the current environment.

[0105] Those skilled in the art should understand that the embodiments of the present invention described above and shown in the accompanying drawings are merely examples and do not limit the present invention. The objectives of the present invention have been fully and effectively achieved. The functions and structural principles of the present invention have been shown and explained in the embodiments, and any modifications or variations of the embodiments of the present invention may be made without departing from the stated principles.

Claims

1. A camera module, characterized in that, The device includes a module and a polarization device disposed in the photosensitive path of the module, wherein the polarization device further includes: One drive unit; and A polarization unit is drivably connected to a driving unit, the driving unit being configured to drive the polarization unit to move into the photosensitive path of the module device and to drive the polarization unit away from the photosensitive path of the module device. The polarization unit includes a polarizer whose polarization angle can be changed. The polarizer is a circular polarizer whose polarization angle is changed by rotation. The polarization unit includes a polarization seat, a polarization support, a substrate, and a polarization driver. The polarization seat has a through polarization space. The polarization support surrounds the polarizer and is rotatably held in the polarization space of the polarization seat. The substrate is disposed on the polarization seat. The polarization driver includes at least one set of coils and at least one magnet. The set of coils is connected to the substrate, and the magnet is disposed on the polarization support. The positions of the magnet and the set of coils correspond so that when the coils are powered, the magnetic field generated by the coils interacts with the magnet to drive the polarization support and the polarizer to rotate relative to the polarization seat.

2. The camera module according to claim 1, wherein the polarizer is a liquid crystal polarizer, whose polarization angle is changed by applying an electric field.

3. The camera module according to claim 1, wherein the polarization unit further includes at least one ball bearing that is rotatably held between the polarization seat and the polarization bracket.

4. The camera module according to claim 1, wherein the substrate is disposed on the top side of the polarizer.

5. The camera module according to any one of claims 1 to 4, wherein the polarization device further comprises a flexible circuit board, the opposite sides of which are respectively connected to the substrate of the polarization unit and the substrate of the driving unit.

6. The camera module according to claim 5, wherein the flexible circuit board is bendable.

7. A polarization device, which can be disposed in the photosensitive path of a module device, characterized in that, The device includes a driving unit and a polarizing unit drovisibly connected to the driving unit, and has a polarization state and a non-polarization state. When the driving unit drives the polarizing unit to be translated into the photosensitive path of the module device, the polarizing unit is in the polarization state; correspondingly, when the driving unit drives the polarizing unit to be translated away from the photosensitive path of the module device, the polarizing unit is in the non-polarization state. The driving unit further includes a mounting base, a driven member, a first substrate, and a translation driver. The mounting base has a first central through-hole, and the driven member has a second central through-hole, with the second central through-hole of the driven member corresponding to the first central through-hole of the mounting base. A centrally perforated portion is rotatably held on the top side of the mounting base, wherein a first substrate is disposed on the mounting base, wherein the translational driver includes at least one set of first coils and at least one set of first magnets, one set of first coils is connected to the first substrate, and one set of first magnets is disposed on the driven member, the positions of the one set of first coils and the one set of first magnets corresponding so that when the one set of first coils is powered, the magnetic field generated by the one set of first coils and the one set of first magnets interact to drive the driven member to rotate relative to the mounting base about the central axis of the second central perforation of the driven member and the central axis of the first central perforation of the mounting base, wherein the polarization unit is drivably mounted on the driven member.

8. The polarization device of claim 7, wherein the drive unit further comprises at least one first ball, the first ball being rotatably held between the mounting base and the driven member.

9. The polarization device of claim 7, wherein the mounting base has at least one side perforation located outside the first central perforation, wherein the first substrate is disposed on the bottom side of the mounting base, and a set of the first magnets is held in the side perforation of the mounting base.

10. The polarization device of claim 7, wherein the driving unit further comprises a first cover having a fourth central through hole and a guide groove located outside the fourth central through hole, wherein the first cover is disposed on the mounting base such that the first cover illuminates the outside of the driven member and the fourth central through hole of the first cover corresponds to the second central through hole of the driven member, wherein the driven member has a mounting convex shaft movably held in the guide groove of the first cover, wherein the mounting convex shaft of the driven member is mounted on the polarization unit.

11. The polarization device of claim 7, wherein the polarization unit further comprises a polarization seat, a polarization mechanism, a second substrate, and a polarization driver, wherein the polarization seat has a through polarization space, wherein the polarization mechanism comprises a polarizer and a polarization support surrounding the polarizer, and the polarization mechanism is rotatably held in the polarization space of the polarization seat, wherein the second substrate is disposed on the polarization seat, wherein the polarization driver comprises at least one set of second coils and at least one second magnet, the set of second coils is connected to the second substrate, the second magnet is disposed on the polarization support, the set of second coils and the second magnet are positioned correspondingly such that when the second coils are powered, the magnetic field generated by the set of second coils and the second magnet interact to drive the polarization mechanism to rotate relative to the polarization seat in the polarization space of the polarization seat, wherein the polarization seat is drivably connected to the driving unit.

12. The polarization device according to any one of claims 7 to 10, wherein the polarization unit further comprises a polarization seat, a polarization mechanism, a second substrate, and a polarization driver, wherein the polarization seat has a through polarization space, wherein the polarization mechanism comprises a polarizer and a polarization support surrounding the polarizer, and the polarization mechanism is rotatably held in the polarization space of the polarization seat, wherein the second substrate is disposed on the polarization seat, wherein the polarization driver comprises at least one set of second coils and at least one second magnet, the set of second coils is connected to the second substrate, the second magnet is disposed on the polarization support, the set of second coils and the second magnet are positioned correspondingly such that when the second coils are powered, the magnetic field generated by the set of second coils and the second magnet interact to drive the polarization mechanism to rotate relative to the polarization seat in the polarization space of the polarization seat, wherein the polarization seat is drivably connected to the driving unit.

13. The polarization device of claim 12, wherein the polarization unit further comprises at least one second ball, the second ball being rotatably held between the polarization seat and the polarization bracket.

14. The polarization device according to claim 7, further comprising a flexible circuit board, wherein the flexible circuit board is connected to the substrate of the driving unit and the substrate of the polarization unit in a bendable manner.

15. The polarization device of claim 12, further comprising a flexible circuit board, wherein the flexible circuit board is connected to the first substrate of the driving unit and the second substrate of the polarization unit in a bendable manner.

Images