Electronic device, camera module and polarization device thereof

Abstract

The present invention discloses an electronic device, a camera module and a polarization device thereof, wherein the polarization device comprises a driving unit and a polarization unit, wherein the polarization unit further comprises a polarization seat and a polarization part, wherein the polarization seat has a seat channel, and the polarization part is rotatably arranged on the polarization seat, and the seat channel of the polarization seat corresponds to the polarization part, wherein the polarization seat is drivably connected to the driving unit, so that the driving unit drives the polarization unit to slide by driving the polarization seat to slide, and the polarization device can be maintained in the photosensitive path of a camera device. When the driving unit drives the polarization unit to slide to the photosensitive path of the camera device, the camera module is suitable for imaging in an environment with strong light, and conversely, the camera module is suitable for imaging in an environment with weak light.

Description

Technical Field

[0001] The present invention relates to an optical imaging device, and in particular to an electronic device, a camera module and a polarization device thereof. Background Art

[0002] In recent years, the camera module used for imaging has developed into one of the standard accessories of portable electronic devices (e.g., smart phones), and the market has put forward higher requirements for the imaging quality of the camera module. In order to make the camera module have higher imaging quality, in addition to paying attention to the hardware of the camera module (e.g., image sensor, filter, lens, etc.), the adjustment of parameters for different shooting environments also needs to be taken into account. Those skilled in the art should know that the brightness of the image taken by the camera module is related to the exposure of the image, and the exposure of the image is related to the amount of light entering the camera module, and whether the image is overexposed or underexposed, it will affect the clarity of the image.

[0003] There is a polarizing film on the market that can shield and transmit incident light. It can be installed on the outside of the lens of a camera (for example, a SLR camera or a micro-single-lens camera). When shooting outdoor scenes, such as shooting scenery or landscapes, the polarizing film is installed on the outside of the camera lens to assist in adjusting the parameters of the shooting environment, so that the texture of the strong reflective parts of the scenery or landscape can be clearly expressed. Accordingly, when shooting in a dark environment, the polarizing film needs to be moved away from the outside of the camera lens to avoid the situation where the image taken by the camera is dark and affects the image quality.

[0004] As an accessory of a camera with a relatively large volume, the existing polarizing film needs to be manually installed and disassembled, which makes it impossible for the existing polarizing film to be applied to the camera module, which is one of the standard accessories of portable electronic devices. Therefore, integrating the function of the polarizing film in the camera module is a technical problem that the inventor of the present invention is committed to solving. In addition, the existing polarizing film needs to be manually rotated to adjust its polarization effect, which makes the use of the polarizing film more difficult and cannot be applied to the camera module, which is one of the standard accessories of portable electronic devices. Summary of the invention

[0005] One object of the present invention is to provide an electronic device, a camera module and a polarization device thereof, wherein the polarization device is configured to be switchable between a polarized state and a non-polarized state to allow the camera module to produce clear images in a variety of shooting environments.

[0006] One object of the present invention is to provide an electronic device, a camera module and a polarization device thereof, wherein a driving unit of the polarization device is capable of driving a polarization unit to slide to allow the polarization unit to be moved to a photosensitive path of a module device or to allow the polarization device to be moved away from the photosensitive path of the module device, so that the polarization device can switch between the polarization state and the non-polarization state.

[0007] One object of the present invention is to provide an electronic device, a camera module and a polarization device thereof, wherein when the polarization device is in the polarization state, the polarization unit provides different polarization effects, so that the camera module can clearly image in different shooting environments. For example, a polarizer of the polarization unit can be rotated to change the polarization angle of the polarizer, so that the polarization unit provides different polarization effects.

[0008] One object of the present invention is to provide an electronic device, a camera module and a polarization device thereof, wherein a second circuit board of the polarization unit and a first circuit board of the driving unit are slidably connected, so that the reliability of the connection relationship between the first circuit board and the second circuit board can be guaranteed when the driving unit drives the polarization unit to slide.

[0009] One object of the present invention is to provide an electronic device, a camera module and a polarization device thereof, wherein the driving unit provides a driving seat and two groups of conductors arranged on the driving seat, the two groups of conductors are respectively connected to the first circuit board, and the driving unit provides two groups of sliding arms, the two groups of sliding arms respectively extend from the polarization circuit board to the two groups of conductors to allow the free ends of the two groups of sliding arms and the two groups of conductors to be slidably connected, so that the reliability of the connection relationship between the first circuit board and the second circuit board can be guaranteed when the driving unit drives the polarization unit to slide.

[0010] According to one aspect of the present invention, the present invention provides a polarization device, comprising:

[0011] a drive unit; and

[0012] A polarization unit, wherein the polarization unit further comprises a polarization seat and a polarization part, the polarization seat has a seat channel, the polarization part is rotatably arranged on the polarization seat, the seat channel of the polarization seat corresponds to the polarization part, wherein the polarization seat is drivably connected to the driving unit, so that the driving unit drives the polarization unit to slide by driving the polarization seat to slide.

[0013] According to one embodiment of the present invention, the driving unit includes a driving seat, at least one first circuit board, at least one group of first coils and at least one first magnet, the driving seat includes a seat frame and a light channel formed in the seat frame, the first circuit board is arranged on the seat frame, the first coil is mounted on the first circuit board, and the first magnet is arranged on the polarization seat, wherein the polarization seat is slidably held above the seat frame, and the position of the first magnet corresponds to the position of the first coil.

[0014] According to one embodiment of the present invention, the driving seat further includes at least one guide rail, which is arranged on the seat frame, and the extension direction of the guide rail is consistent with the length direction of the seat frame, wherein the polarization seat is arranged to ride on the guide rail of the driving seat.

[0015] According to one embodiment of the present invention, the driving seat includes two guide rails, which are symmetrically arranged on opposite sides of the seat frame, wherein the polarization seat includes a seat body and two extension arms, and the two extension arms extend downward integrally on opposite sides of the seat body to form a sinking space between the seat body and the two extension arms, and the seat channel is formed in the seat body and connected to the sinking space, wherein the two guide rails extend to the sinking space of the polarization seat respectively, and each extension arm of the polarization seat is respectively held on the outside of each guide rail.

[0016] According to one embodiment of the present invention, the driving seat further includes two end plates, and the two end plates extend outward integrally at opposite ends of the seat frame to form at least one side opening between the two end plates and the seat frame, wherein the first circuit board is arranged at the side opening of the driving seat, and the first coil faces the extension arm of the polarization seat, wherein the first magnet is arranged at the extension arm of the polarization seat.

[0017] According to one embodiment of the present invention, the driving seat has two side openings, wherein the driving unit includes a first circuit board, two groups of the first coils and two first magnets, wherein the first circuit board includes two plate bodies and a connecting plate connected to the two plate bodies, each of the plate bodies is respectively arranged at each side opening of the driving seat, each group of the first coils is respectively mounted on each plate body of the first circuit board, and each of the first magnets is respectively arranged at each extension arm of the polarization seat.

[0018] According to one embodiment of the present invention, the driving seat has two side openings, wherein the driving unit includes two first circuit boards, two groups of first coils and two first magnets, wherein each first circuit board is respectively arranged at each side opening of the driving seat, each group of first coils is respectively mounted on each first circuit board, and each first magnet is respectively arranged at each extension arm of the polarization seat.

[0019] According to one embodiment of the present invention, the polarization device further includes at least two first balls, wherein the top surface of each guide rail has a first guide groove, and the polarization unit has two second guide grooves, which are formed on the seat body and connected to the sinking space, wherein a portion of the first balls is rollably retained in the first guide groove of the guide rail, and a portion is rollably retained in the second guide groove of the polarization unit.

[0020] According to an embodiment of the present invention, the polarization seat has a polarization cavity, the seat channel is connected to the polarization cavity, and the polarization part is rotatably arranged in the polarization cavity of the polarization seat.

[0021] According to one embodiment of the present invention, the polarization unit further includes a second circuit board, at least one group of second coils and at least one group of second magnets, the second circuit board has a board channel, the second circuit board is mounted on the polarization seat, and the board channel of the second circuit board corresponds to the seat channel of the polarization seat and is connected to the polarization cavity, the second coil is mounted on the second circuit board and the polarization cavity located on the polarization seat, the second magnet is arranged in the polarization part, and the position of the second magnet corresponds to the position of the second coil.

[0022] According to one embodiment of the present invention, the polarization unit includes three groups of second coils and three groups of second magnets, the three groups of second coils are arranged at intervals, the three groups of second magnets are arranged at intervals, and the position of each group of second magnets corresponds to the position of each group of second coils.

[0023] According to one embodiment of the present invention, the polarization device further includes at least one second ball, wherein the polarization seat has at least one third guide groove, which is formed in the seat body and the polarization cavity used in the connection, wherein the polarization part has at least one fourth guide groove, wherein a part of the second ball is rollably retained in the third guide groove of the polarization seat, and a part is rollably retained in the fourth guide groove of the polarization part.

[0024] According to one embodiment of the present invention, the polarization seat has a polarization cavity, the seat channel is connected to the polarization cavity, wherein the polarization part is rotatably arranged in the polarization cavity of the polarization seat, wherein the polarization unit further includes a second circuit board, at least one group of second coils and at least one group of second magnets, the second circuit board has a board channel, the second circuit board is mounted on the polarization seat, and the board channel of the second circuit board corresponds to the seat channel of the polarization seat and is connected to the polarization cavity, the second coil is mounted on the second circuit board and the polarization cavity located on the polarization seat, the second magnet is arranged in the polarization part, and the position of the second magnet corresponds to the position of the second coil, wherein the second circuit board is connected to the first circuit board.

[0025] According to one embodiment of the present invention, the driving unit further includes two groups of conductors, which are respectively arranged on the driving seat and connected to the first circuit board, wherein the polarization unit further includes two groups of sliding arms, which extend from the second circuit board to the two groups of conductors respectively, and the free ends of the sliding arms are slidably connected to the conductors.

[0026] According to another aspect of the present invention, the present invention further provides a camera module, wherein the camera module includes a module device and a polarization device, wherein the polarization device further includes a driving unit and a polarization unit, wherein the polarization unit further includes a polarization seat and a polarization part, the polarization seat has a seat channel, the polarization part is rotatably arranged on the polarization seat, and the seat channel of the polarization seat corresponds to the polarization part, wherein the polarization seat is drivably connected to the driving unit so that the polarization unit can be driven to slide by the driving unit by driving the polarization seat to slide, and the polarization device is configured to allow the driving unit to drive the polarization unit to be moved to the photosensitive path of the module device or moved away from the photosensitive path of the module device.

[0027] According to another aspect of the present invention, the present invention further provides an electronic device, comprising:

[0028] an electronic device body; and

[0029] A camera module, wherein the camera module is arranged on the electronic device body, wherein the camera module further includes a module device and a polarization device, wherein the polarization device further includes a driving unit and a polarization unit, wherein the polarization unit further includes a polarization seat and a polarization part, the polarization seat has a seat channel, the polarization part is rotatably arranged on the polarization seat, and the seat channel of the polarization seat corresponds to the polarization part, wherein the polarization seat is drivably connected to the driving unit so that the polarization unit is driven to slide by the driving unit by driving the polarization seat to slide, and the polarization device is configured to allow the driving unit to drive the polarization unit to be moved to the photosensitive path of the module device or to be moved away from the photosensitive path of the module device. BRIEF DESCRIPTION OF THE DRAWINGS

[0030] Figure 1A It is a cross-sectional schematic diagram of a camera module according to a preferred embodiment of the present invention when a polarization device is in a polarization state.

[0031] Figure 1B It is a cross-sectional schematic diagram of the camera module according to the above preferred embodiment of the present invention when the polarization device is in a non-polarized state.

[0032] Figure 2A It is a three-dimensional schematic diagram of a viewing angle of the polarization device according to the above preferred embodiment of the present invention.

[0033] Figure 2B It is a three-dimensional schematic diagram of another viewing angle of the polarization device according to the above preferred embodiment of the present invention.

[0034] Figure 3 It is a schematic diagram of an exploded view of the polarization device according to the above preferred embodiment of the present invention.

[0035] Figure 4 It is a three-dimensional cross-sectional schematic diagram of the polarization device according to the above preferred embodiment of the present invention.

[0036] Figure 5A yes Figure 4 An enlarged schematic diagram of one location.

[0037] Figure 5B yes Figure 4 An enlarged schematic diagram of another position.

[0038] Figure 6 It is a three-dimensional schematic diagram of a driving unit of the polarization device according to the above preferred embodiment of the present invention.

[0039] Fig. 7A It is a schematic diagram of an exploded view of a polarization unit of the polarization device according to the preferred embodiment of the present invention.

[0040] Figure 7B 1 is a schematic diagram of an exploded view of the polarization unit of the polarization device according to the preferred embodiment of the present invention from another viewing angle.

[0041] Figure 8 It is a three-dimensional schematic diagram of an electronic device according to the present invention. DETAILED DESCRIPTION

[0042] Before describing in detail any embodiment of the present invention, it should be understood that the present invention is not limited in its application to the construction and arrangement details of the components described below or illustrated in the following figures. The present invention can have other embodiments and can be practiced or carried out in various ways. In addition, it should be understood that the words and terms used here are for descriptive purposes and should not be considered restrictive. The use of "including", "comprising" or "having" and its variations herein is intended to cover the items and their equivalents and additional items displayed below. Unless otherwise specified or limited, the terms "install", "connect", "support" and "couple" and their variations are widely used and cover direct installation and indirect installation, connection, support and connection. In addition, "connect" and "couple" are not limited to physical or mechanical connections or connections.

[0043] Furthermore, on the first aspect, in the disclosure of the present invention, the orientation or positional relationship indicated by terms such as "longitudinal", "transverse", "upper", "lower", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inside" and "outside" are based on the orientation or positional relationship shown in the accompanying drawings, which are only for the convenience of describing the present invention and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operate in a specific orientation, and therefore the above terms cannot be understood as limitations on the present invention; on the second aspect, the term "one" should be understood as "at least one" or "one or more", that is, in one embodiment, the number of an element may be one, while in another embodiment, the number of the element may be multiple, and the term "one" cannot be understood as a limitation on the quantity.

[0044] With reference to the accompanying drawings of the present invention Figures 1A to 7B A camera module 1000 according to a preferred embodiment of the present invention will be disclosed and explained in the following description, wherein the camera module 1000 includes a module device 100 and a polarization device 200 arranged on the module device 100.

[0045] Continue to refer to the attached Figure 1A and Figure 1BThe module device 100 includes a circuit board 101, a photosensitive chip 102, a lens holder 103, an optical lens 104, and a lens holder 105, wherein the photosensitive chip 102 is mounted on the circuit board 101, the lens holder 103 is disposed on the circuit board 101 and surrounds the photosensitive area of ​​the photosensitive chip 102, the optical lens 104 is mounted on the lens holder 105, and the lens holder 105 is mounted on the lens holder 103, so that the optical lens 104 is held in the photosensitive path of the photosensitive chip 102 by the lens holder 105. After passing through the optical lens 104, the light can enter the interior of the module device 100 and be received by the photosensitive chip 102, and the photosensitive chip 102 performs photoelectric conversion to form an image.

[0046] It is worth mentioning that the type of the lens holding portion 105 is not limited in the camera module 1000 of the present invention. For example, the lens holding portion 105 can be a lens barrel, in which case the camera module 1000 is a fixed-focus camera module 1000, or the lens holding portion 105 can be a driver, in which case the lens holding portion 105 can drive the optical lens 104 to move along the optical axis direction of the module device 100 to achieve focusing, and in this case the camera module 1000 is a focus camera module 1000. It is worth mentioning that the manner in which the lens holder 103 is arranged on the circuit board 101 is not limited in the camera module 100 of the present invention. For example, the lens holder 103 can be a prefabricated part, which is mounted on the circuit board 101, or the lens holder 103 can be integrally formed on the circuit board 101 by a molding process. Specifically, in the attached Figure 1A and Figure 1B In the specific example of the camera module 1000 shown, the lens holder 103 is integrally formed on the circuit board 101 by a molding process, so that the lens holder 103 can reinforce the strength of the circuit board 101 and reduce the height dimension of the camera module 1000.

[0047] Continue to refer to the attached Figure 1A and Figure 1B The module device 100 further includes at least one electronic component 106 , which may be a resistor, a capacitor, a processor, etc., wherein the electronic component 106 is mounted on the circuit board 101 , and the lens holder 103 embeds the electronic component 106 .

[0048] Continue to refer to the attached Figure 1A and Figure 1BThe module device 100 further comprises a filter 107, which may be an infrared cutoff filter, wherein the filter 107 is held in the light sensing path of the photosensitive chip 102. Preferably, the module device 100 further comprises a filter holder 108, wherein the filter 107 is mounted on the filter holder 108, and the filter holder 108 is mounted on the lens holder 103, so that the lens holder 103 and the filter holder 108 cooperate with each other to hold the filter 107 in the light sensing path of the photosensitive chip 102.

[0049] Continue to refer to the attached Figure 1A and Figure 1B The polarization device 200 is arranged in the lens holding part 105 of the module device 100, wherein the polarization device 200 has a polarization state and a non-polarization state, and the polarization device 200 can switch between the polarization state and the non-polarization state.

[0050] Reference Figure 1A When the polarization device 200 is in the polarization state, the component of the polarization device 200 for providing the polarization function is moved to the photosensitive path of the module device 100, so that the incident light is allowed to pass through the component of the polarization device 200 for providing the polarization function and then enter the interior of the module device 100 through the optical lens 104, so as to be imaged by the photoelectric conversion by the photosensitive chip 102. At this time, the camera module 1000 is suitable for imaging in an environment with strong light.

[0051] Reference Figure 1B When the polarization device 200 is in the non-polarized state, the component of the polarization device 200 for providing the polarization function is moved away from the photosensitive path of the module device 100, so that the incident light directly enters the interior of the module device 100 through the optical lens 104, so as to be imaged by the photoelectric conversion by the photosensitive chip 102. At this time, the camera module 1000 is suitable for imaging in a weak light environment.

[0052] By switching the state of the polarization device 200 between the polarization state and the non-polarization state, the camera module 1000 can produce clear images in a variety of shooting environments.

[0053] Continue to refer to the attached Figures 1A to 7BThe polarization device 200 includes a driving unit 10 and a polarization unit 20 drivably connected to the driving unit 10, and the driving unit 10 is used to drive the polarization unit 20 to slide. The driving unit 10 can be arranged in the lens holding portion 105, wherein the driving unit 10 can drive the polarization unit 20 to slide and allow the polarization unit 20 to be moved to the photosensitive path of the module device 100 or allow the polarization unit 20 to be moved away from the photosensitive path of the module device 100, wherein when the polarization unit 20 is moved to the photosensitive path of the module device 100, the polarization device 200 is in the polarization state, and when the polarization unit 20 is moved away from the photosensitive path of the module device 100, the polarization device 200 is in the non-polarization state. The polarization device 200 can switch between the polarization state and the non-polarization state by the driving unit 10 driving the polarization unit 20 to slide, so that the camera module 1000 is suitable for clear imaging in different shooting environments.

[0054] For details, please refer to the attached Figures 1A to 6 The driving unit 10 includes a driving seat 11, at least one first circuit board 12, at least one group of first coils 13 and at least one first magnet 14, wherein the first circuit board 12 is disposed on the driving seat 11, a group of first coils 13 is mounted on the first circuit board 12, and the first magnet 14 is disposed on the polarization unit 20, wherein the polarization unit 20 is slidably mounted on the driving seat 11, and the position of the first magnet 14 corresponds to the position of the group of first coils 13. The driving seat 11 of the driving unit 10 can be disposed on the lens holding portion 105 of the module device 100, and the first circuit board 12 of the driving unit 10 can be connected to the circuit board 101 of the module device 100. When the circuit board 101 of the module device 100 supplies power to a group of the first coils 13 through the first circuit board 12 of the driving unit 10, the magnetic field generated by a group of the first coils 13 interacts with the first magnet 14 to drive the polarization unit 20 to slide along the track formed by the driving seat 11, so as to allow the polarization unit 20 to be moved to the photosensitive path of the module device 100 so that the camera module 1000 is suitable for imaging in an environment with stronger light, or to allow the polarization unit 20 to be moved away from the photosensitive path of the module device 100 so that the camera module 1000 is suitable for imaging in an environment with weaker light.

[0055] It is worth mentioning that the way in which the drive seat 11 of the drive unit 10 is arranged on the lens holding part 105 of the module device 100 is not limited in the camera module 1000 of the present invention. For example, the bottom surface of the drive seat 11 can be attached to the end surface of the lens holding part 105 by glue, so that the drive seat 11 is arranged on the lens holding part 105, or the inner wall of the drive seat 11 and the outer wall of the lens holding part 105 are attached by glue, so that the drive seat 11 is arranged on the lens holding part 105.

[0056] Furthermore, the drive seat 11 has a light channel 110, the drive seat 11 and the lens holding portion 105 can be sealed and mounted, and the lens holding portion 105 enables the optical lens 104 to correspond to the light channel 110 of the drive seat 11, so as to allow light passing through the light channel 110 of the drive seat 11 to enter the interior of the module device 100 through the optical lens 104.

[0057] Preferably, in the attached FIG. 2A to FIG. 7B In the preferred example of the polarization device 200 shown, the driving unit 10 includes a first circuit board 12, two groups of the first coils 13 and two first magnets 14. The first circuit board 12 includes two plate bodies 121 and a connecting plate 122, the two plate bodies 121 are respectively arranged on opposite sides of the driving seat 11, and the two ends of the connecting plate 122 are respectively extended to be connected to the two plate bodies 121. Each group of the first coils 13 is respectively mounted on each of the plate bodies 121 of the first circuit board 12, so that each group of the first coils 13 is respectively located on each side of the driving seat 11. Each first magnet 14 is respectively arranged on each side of the polarization unit 20, so that the position of each first magnet 14 corresponds to the position of each group of the first coils 13. When each of the board bodies 121 of the first circuit board 12 supplies power to each group of the first coils 13 at the same time, the magnetic field generated by each group of the first coils 13 interacts with each of the first magnets 14 to simultaneously drive the polarization unit 20 at opposite sides of the polarization unit 20, so as to allow the polarization unit 20 to slide smoothly along the track formed by the driving seat 11. In other words, both opposite sides of the polarization unit 20 can be driven, so as to allow the polarization unit 20 to slide smoothly along the track formed by the driving seat 11.

[0058] Optionally, in other examples of the polarization device 200 of the present invention, the number of the first circuit boards 12 of the driving unit 10 is two, which are respectively arranged on opposite sides of the driving seat 11, wherein the two first circuit boards 12 are connected to each other, and one of the two first circuit boards 12 is connected to the circuit board 101 of the module device 100.

[0059] Optionally, in other examples of the polarization device 200 of the present invention, the number of the first circuit boards 12 of the driving unit 10 is two, which are respectively arranged on opposite sides of the driving seat 11, wherein the two first circuit boards 12 are respectively connected to the circuit board 101 of the module device 100.

[0060] Continue to refer to the attached Figures 1A to 6 The driving seat 11 further includes a seat frame 111 and two end plates 112, the two end plates 112 are integrally extended outward from opposite ends of the seat frame 111, so as to form a polarization space 113 and two side openings 114 respectively connected to the polarization space 113 between the seat frame 111 and the two end plates 112, wherein the light channel 110 is formed in the seat frame 111 and connected to the polarization space 113. The bottom side and each end of the board body 121 of the first circuit board 12 are respectively arranged on the seat frame 111 and each end plate 112, so that the side opening 114 of the driving seat 11 is closed by the board body 121, and a group of the first coils 13 are located in the polarization space 113 of the driving seat 11.

[0061] Preferably, the driving seat 11 has a retaining groove 115, which extends from one side of the seat frame 111 to the other side at one end of the seat frame 111, wherein the connecting plate 122 of the first circuit board 12 is retained in the retaining groove 115 of the driving seat 11, thereby preventing the connecting plate 122 of the first circuit board 12 from protruding from the seat frame 111.

[0062] Further, please refer to the attached Figures 3 to 6 The driving seat 11 further includes two guide rails 116, which are symmetrically arranged on the seat frame 111, and opposite ends of the guide rails 116 extend toward the two end plates 112, respectively, to guide the sliding direction of the polarization unit 20. In other words, the polarization unit 20 is allowed to slide along the track formed by the two guide rails 116 of the driving seat 11, so that the polarization device 200 switches between the polarization state and the non-polarization state. Preferably, the end of the guide rail 116 extends to the end plate 112.

[0063] Furthermore, the top surface of each guide rail 116 of the driving seat 11 has a first guide groove 1161 respectively, and the polarization unit 20 has two symmetrical second guide grooves 201, wherein the position of each second guide groove 201 of the polarization unit 20 corresponds to the position of the first guide groove 1161 of each guide rail 116. The polarization device 200 further includes at least two first balls 30, wherein a portion of each of the first balls 30 is rollably retained in the first guide groove 1161 of the guide rail 116, and a portion is rollably retained in the second guide groove 201 of the polarization unit 20, so that the polarization unit 20 is supported by each of the first balls 30 and suspended on the upper side of each of the guide rails 116, so that when the first coil 13 and the first magnet 14 of the driving unit 10 cooperate with each other to drive the polarization unit 20 to slide along each of the guide rails 116 of the driving seat 11, each of the first balls 30 can avoid friction between the polarization unit 20 and the driving seat 11 by rolling, so as to ensure smooth sliding of the polarization unit 20.

[0064] Preferably, the polarization unit 20 is mounted on each of the guide rails 116 of the driving seat 11 , so as to lower the position of the first magnet 14 of the driving unit 10 and thus help reduce the height of the polarization device 200 .

[0065] Specifically, the two guide rails 116 of the driving seat 11 are not arranged at the two side edges of the seat frame 111, but are arranged near the middle of the seat frame 111, so that the two guide rails 116 can separate the polarization space 113 of the driving seat 11 into an inner space 1131 and two outer spaces 1132 located on opposite sides of the inner space 1131. Each group of the first coils 13 is respectively arranged in each of the outer spaces 1132 of the driving seat 11.

[0066] The polarization unit 20 includes a polarization seat 21 and a polarization part 22, wherein the polarization seat 21 further includes a seat body 211 and two extension arms 212, and the polarization seat 21 has a sinking space 213 and a seat channel 214, the two extension arms 212 extend downward from opposite sides of the seat body 211 to form the sinking space 213 between the two extension arms 212 and the seat body 211, and the seat channel 214 is formed in the seat body 211 and communicates with the sinking space 213, wherein the polarization part 22 is arranged in the seat body 211, and the seat channel 214 corresponds to the polarization part 22. The second guide groove 201 of the polarization unit 20 is formed in the seat body 211 and communicates with the sinking space 213. Each of the first magnets 14 of the driving unit 10 is respectively arranged in each of the extension arms 212 of the polarization seat 21.

[0067] Each of the guide rails 116 of the driving seat 11 extends to the sunken space 213 of the polarization seat 21 respectively, and each of the extension arms 212 of the polarization seat 21 extends to each of the outer spaces 1132 of the driving seat 11 respectively, thereby allowing the polarization unit 20 to ride on each of the guide rails 116 of the driving seat 11 and sink the position of the first magnet 14 of the driving unit 10, so as to help reduce the height dimension of the polarization device 200, thereby helping to reduce the height dimension of the camera module 1000 when the polarization device 200 is applied to the camera module 1000.

[0068] Furthermore, by allowing the polarization unit 20 to ride on each of the guide rails 116 of the driving seat 11, when the first coil 13 and the first magnet 14 of the driving unit 10 cooperate with each other to drive the polarization unit 20 to slide along each of the guide rails 116 of the driving seat 11, the polarization unit 20 can be prevented from being deflected, thereby facilitating the imaging quality of the camera module 1000.

[0069] It is worth mentioning that the manner in which the first magnet 14 is disposed on the extension arm 212 of the polarization seat 21 is not limited in the polarization device 200 of the present invention. FIG. 2A to FIG. 7B In the specific example of the polarization device 200 shown, the extension arm 212 of the polarization seat 21 has an embedding groove 2120, and the first magnet 14 is embedded in the embedding groove 2120 of the extension arm 212. This can prevent the first magnet 14 from protruding from the extension arm 212, which is beneficial for reducing the width dimension of the polarization device 200.

[0070] Continue to refer to the attached Figure 4 , Figure 5A , Figure 5B , Fig. 7A and Figure 7B The polarization seat 21 further has a polarization cavity 215, the polarization cavity 215 is formed in the seat body 211, and the seat channel 214 is connected to the polarization cavity 215, wherein the polarization part 22 is rotatably disposed in the polarization cavity 215 of the polarization seat 21.

[0071] Specifically, the polarization unit 20 further includes a second circuit board 23, at least one group of second coils 24 and at least one group of second magnets 25, wherein the second circuit board 23 has a board channel 231, the second circuit board 23 is mounted on the seat body 211 of the polarization seat 21, the board channel 231 of the second circuit board 23 corresponds to the seat channel 214 of the polarization seat 21 and is connected to the polarization cavity 215, wherein a group of second coils 24 is mounted on the second circuit board 23, and a group of second coils 24 is located in the polarization cavity 215 of the polarization seat 21, wherein a group of second magnets 25 is arranged in the polarization part 22, and the position of a group of second magnets 25 corresponds to the position of a group of second coils 24. When power is supplied to a group of the second coils 24 through the second circuit board 23, the magnetic field generated by a group of the second coils 24 interacts with a group of the second magnets 25 to drive the polarization part 22 to rotate in the polarization cavity 215 of the polarization seat 21, thereby changing the polarization angle of the polarization part 22, so that the camera module 1000 can form clear images in different shooting environments.

[0072] More specifically, the polarization unit 22 includes a polarizer 221 and a polarization cylinder 222 surrounding the polarizer 221, wherein a group of second magnets 25 are disposed on the polarization cylinder 222. When power is supplied to a group of second coils 24 through the second circuit board 23, the magnetic field generated by a group of second coils 24 interacts with a group of second magnets 25 to drive the polarization cylinder 222, so that the polarizer 221 is driven by the polarization cylinder 222 to rotate and change the polarization angle of the polarization unit 22. Preferably, the polarizer 221 may be, but is not limited to, a circular polarizer.

[0073] It is worth mentioning that the manner in which a group of the second magnets 25 are arranged on the polarization cylinder 222 of the polarization unit 22 is not limited in the polarization device 200 of the present invention. For example, the polarization cylinder 222 has a mounting groove 2221, wherein a group of the second magnets 25 are mounted on the mounting groove 2221 of the polarization cylinder 222, so as to arrange a group of the second magnets 25 on the polarization cylinder 222. Moreover, by mounting a group of the second magnets 25 on the mounting groove 2221 of the polarization cylinder 222, a group of the second magnets 25 can be sunk, so as to reduce the height dimension of the polarization device 200, so as to reduce the height dimension of the camera module 1000 when the polarization device 200 is applied to the camera module 1000.

[0074] Preferably, in the attached FIG. 2A to FIG. 7B In this specific example of the polarization device 200 shown, the polarization unit 20 includes three groups of second coils 24 and three groups of second magnets 25, wherein the three groups of second coils 24 are spaced apart from each other and surround the board channel 231 of the second circuit board 23, and the three groups of second magnets 25 are spaced apart from each other and surround the polarizer 221, and the position of each group of second coils 24 corresponds to the position of each group of second magnets 25.

[0075] Preferably, the polarization seat 21 has at least one limiting groove 216 formed on the seat body 211 and located at the side of the polarization cavity 215, and the side of the polarization tube 222 has at least one limiting protrusion 2222, wherein the limiting protrusion 2222 of the polarization tube 222 can extend to the limiting groove 216 of the polarization seat 21 to limit the maximum rotation range of the polarization part 22. Preferably, the number of the limiting grooves 216 of the polarization seat 21 is two, which are symmetrically arranged on opposite sides of the polarization cavity 215, and correspondingly, the number of the limiting protrusions 2222 of the polarization tube 222 is two, and the two limiting protrusions 2222 are symmetrical to each other, so that each limiting protrusion 2222 of the polarization tube 222 is rotatably mounted on each limiting groove 216 of the polarization seat 21.

[0076] Further, please refer to the attached FIG. 2A to FIG. 7BThe polarization seat 21 has at least one third guide groove 217, which is formed on the seat body 211 and connected to the polarization cavity 215, and the polarization tube 222 has at least one fourth guide groove 2223, wherein each of the fourth guide grooves 2223 of the polarization tube 222 and each of the third guide grooves 217 of the polarization seat 21 correspond to each other. The polarization device 200 further includes at least one second ball 40, wherein a portion of each second ball 40 is rollably retained in the third guide groove 217 of the polarization seat 21, and a portion is rollably retained in the fourth guide groove 2223 of the polarization tube 222, so that the polarization part 22 is supported by each second ball 40 and suspended in the polarization cavity 215 of the polarization seat 21, so that when the second coil 24 and the second magnet 25 cooperate with each other to drive the polarization part 22 to rotate in the polarization cavity 215 of the polarization seat 21, each second ball 40 can avoid friction between the polarization tube 222 of the polarization part 22 and the seat body 211 of the polarization seat 21 by rolling, so as to ensure the smooth movement of the polarization unit 20.

[0077] Preferably, the polarization seat 21 has three third guide grooves 217, which surround the seat channel 214, and the polarization tube 222 has three fourth guide grooves 2223, which surround the polarizer 221. Correspondingly, the polarization device 200 includes four second ball bearings 40, wherein a portion of each of the second ball bearings 40 is respectively retained in each of the third guide grooves 217 of the polarization seat 21, and a portion is respectively retained in each of the fourth guide grooves 2223 of the polarization tube 222. In this way, the polarization portion 22 can be prevented from tilting and the reliability of the polarization device 200 can be ensured.

[0078] Continue to refer to the attached Figures 1A to 7BThe driving unit 10 further includes two groups of conductors 15, the two groups of conductors 15 are respectively connected to the first circuit board 12, and the two groups of conductors 15 are respectively arranged on the same guide rail 116 and extend along the extension direction of the guide rail 116. The polarization unit 20 further includes two groups of sliding arms 26, the two groups of sliding arms 26 extend from the second circuit board 23 to the two groups of conductors 15, respectively, so as to allow the free ends of the two groups of sliding arms 26 and the two groups of conductors 15 to be slidably connected, so as to connect the second circuit board 23 to the first circuit board 12, so that when the driving unit 10 drives the polarization unit 20 to slide, the reliability of the connection relationship between the second circuit board 23 and the first circuit board 12 can be guaranteed. In other words, each of the slide arms 26 has a slide arm high end 261 and a slide arm low end 262 corresponding to the slide arm high end 261, wherein the slide arm high end 261 is connected to the second circuit board 23, and the slide arm low end 262 is the free end of the slide arm 26, wherein the slide arm low end 262 of the slide arm 26 can be attached to the conductor 15 so that the slide arm 26 and the conductor 15 are slidably connected.

[0079] Specifically, the polarization seat 21 has two groups of slide arm through holes 218, and the middle part of each slide arm 26 is respectively arranged on the slide arm through hole 218 of the polarization seat 21, wherein one end of the slide arm 26 exposes the polarization seat 21 to form the slide arm high end 261 of the slide arm 26, which can be welded to the second circuit board 23, wherein the other end of the slide arm 26 exposes the polarization seat 21 to form the slide arm low end 262 of the slide arm 26.

[0080] Preferably, the conductor 15 protrudes from the outer side surface of the guide rail 116, and the lower end 262 of the slide arm 26 protrudes from the inner side surface of the extension arm 212 of the polarization seat 21, so that when the polarization seat 21 rides on the guide rail 116, the lower end 262 of the slide arm 26 can contact the conductor 15 and be conductive.

[0081] Preferably, one group of the conductors 15 extends to one end plate 112 in the middle of the guide rail 116, and another group of the conductors 15 extends to another end plate 112 in the middle of the same guide rail 116. Optionally, opposite ends of each group of the conductors 15 extend to each end plate 112, respectively.

[0082] Optionally, in other examples of the polarization device 200 of the present invention, one group of the conductors 15 can be arranged on the outside of one of the guide rails 116, and another group of the conductors 15 can be arranged on the outside of another guide rail 116. Accordingly, the two groups of sliding arms 26 extend from opposite sides of the second circuit board 23 to each group of the conductors 15, respectively.

[0083] Further, the polarization unit 20 includes an integrated cover 27, and the integrated cover 27 has a cover channel 271, wherein the integrated cover 27 is buckled to the polarization seat 21 in a manner that the cover channel 271 of the integrated cover 27 corresponds to the board channel 231 of the second circuit board 23. Preferably, opposite sides of the integrated cover 27 are respectively provided with a buckle ear 272, and correspondingly, opposite sides of the polarization seat 21 are respectively provided with a buckle groove 219, wherein each buckle ear 272 of the integrated cover 27 extends to each buckle groove 219 of the driving seat 11, so as to buckle the integrated cover 27 to the polarization seat 21.

[0084] Further, the polarization device 200 includes a mask 50, wherein the mask 50 includes a mask plate 51, two protective arms 52, and a through hole 53, the two protective arms 52 respectively extend downward at opposite sides of the mask plate 51, and the through hole 53 is formed at one end of the mask plate 51. The mask 50 is mounted on the driving unit 10, and the mask plate 51 of the mask 50 closes the polarization space 113 of the driving seat 11, each of the protective arms 52 of the mask 50 is respectively attached to each of the board bodies 121 of the first circuit board 12, and the through hole 53 of the mask 50 corresponds to the mask channel 271 of the integrated cover 27, so that the mask 50 and the driving seat 11 form the general appearance of the polarization device 200.

[0085] When the camera module 1000 needs to form an image in an environment with poor light, the first circuit board 12 of the driving unit 10 supplies power to each group of the first coils 13, so that the magnetic field generated by the first coils 13 and the first magnet 14 interact with each other to drive the polarization unit 20 to slide along the track formed by the guide rail 116 of the driving seat 11, so that the polarization unit 20 is moved away from the photosensitive path of the module device 100. At this time, the incident light is allowed to pass through the light channel 110 of the driving seat 11 and enter the interior of the module device 100 through the optical lens 104 to form an image. In this process, each of the first balls 30 ensures that the polarization unit 20 is suspended and maintained in the polarization space 113 of the driving seat 11, thereby avoiding friction between the driving seat 11 and the polarization seat 21 of the polarization unit 20.

[0086] When the camera module 1000 needs to form an image in an environment with strong light, the first circuit board 12 of the driving unit 10 supplies power to each group of the first coils 13, so that the magnetic field generated by the first coils 13 and the first magnet 14 interact with each other to drive the polarization unit 20 to slide along the track formed by the guide rail 116 of the driving seat 11, so that the polarization unit 20 is moved to the photosensitive path of the module device 100. At this time, the incident light needs to pass through the polarizer 221 and enter the interior of the module device 100 through the optical lens 104 to form an image. In this process, each of the first balls 30 ensures that the polarization unit 20 is suspended and maintained in the polarization space 113 of the driving seat 11 by rolling, thereby avoiding friction between the driving seat 11 and the polarization seat 21 of the polarization unit 20.

[0087] When the polarization device 200 is in the polarization state, the first circuit board 12 can supply power to the second circuit board 23 of the polarization unit 20 through the conductor 15 and the sliding arm 26, and the second circuit board 23 further supplies power to the second coil 24 to allow the second coil 24 to generate a magnetic field. The magnetic field generated by the second coil 24 interacts with the second magnet 25 to drive the polarization part 22 to rotate in the polarization cavity 215 of the polarization seat 21, thereby changing the polarization angle of the polarizer 221 of the polarization part 22, so that the camera module 1000 can clearly image in a variety of shooting environments. In this process, each of the second balls 40 ensures that the polarization part 22 is suspended and maintained in the polarization cavity 215 of the polarization seat 21 by rolling. Thereby avoiding friction between the polarization part 22 and the polarization seat 22.

[0088] Reference Figure 8 According to another aspect of the present invention, the present invention further provides an electronic device, which includes at least one camera module 1000 and an electronic device body 2000, wherein the camera module 1000 is arranged on the electronic device body 2000.

[0089] It is worth mentioning that the type of the electronic device body 2000 can be but is not limited to a smart phone, a tablet computer, etc.

[0090] It should be understood by those skilled in the art that the embodiments of the present invention described above and shown in the accompanying drawings are only examples and do not limit the present invention. The purpose of the present invention has been fully and effectively achieved. The functional and structural principles of the present invention have been demonstrated and explained in the embodiments, and the embodiments of the present invention may be deformed or modified in any way without departing from the principles.

Claims

1. A polarization device, characterized in that include: a drive unit; and A polarization unit, wherein the polarization unit further includes a polarization seat and a polarization part, the polarization seat has a seat channel, the polarization part is rotatably arranged on the polarization seat, and the seat channel of the polarization seat corresponds to the polarization part, wherein the polarization seat is drivably connected to the driving unit, so that the driving unit drives the polarization unit to slide by driving the polarization seat to slide, wherein the driving unit includes a driving seat, at least one first circuit board, at least one group of first coils and at least one first magnet, the driving seat includes a seat frame and a light channel formed in the seat frame, the first circuit board is arranged on the seat frame, the first coil is mounted on the first circuit board, and the first magnet is arranged on the polarization seat, wherein the polarization seat is slidably maintained above the seat frame, and the position of the first magnet corresponds to the position of the first coil, wherein the driving seat further includes at least one guide rail, the guide rail is arranged on the seat frame, and the extension direction of the guide rail is consistent with the length direction of the seat frame, wherein the polarization seat is arranged on the guide rail of the driving seat to sink to the position of the first magnet.

2. The polarization device according to claim 1, wherein the driving seat comprises two guide rails, which are symmetrically arranged on opposite sides of the seat frame, wherein the polarization seat comprises a seat body and two extension arms, which extend downward integrally on opposite sides of the seat body to form a sinking space between the seat body and the two extension arms, and the seat channel is formed in the seat body and connected to the sinking space, wherein the two guide rails extend to the sinking space of the polarization seat respectively, and each extension arm of the polarization seat is respectively held on the outside of each guide rail.

3. The polarization device according to claim 2, wherein the driving seat further includes two end plates, and the two end plates extend outward integrally at opposite ends of the seat frame to form at least one side opening between the two end plates and the seat frame, wherein the first circuit board is arranged at the side opening of the driving seat, and the first coil faces the extension arm of the polarization seat, and wherein the first magnet is arranged at the extension arm of the polarization seat.

4. The polarization device according to claim 3, wherein the driving seat has two side openings, wherein the driving unit includes a first circuit board, two groups of the first coils and two first magnets, wherein the first circuit board includes two plate bodies and a connecting plate connected to the two plate bodies, each of the plate bodies is respectively arranged at each of the side openings of the driving seat, each group of the first coils is respectively mounted on each of the plate bodies of the first circuit board, and each of the first magnets is respectively arranged at each of the extension arms of the polarization seat.

5. The polarization device according to claim 3, wherein the driving seat has two side openings, wherein the driving unit includes two first circuit boards, two groups of first coils and two first magnets, wherein each of the first circuit boards is respectively arranged at each of the side openings of the driving seat, each group of the first coils is respectively mounted on each of the first circuit boards, and each of the first magnets is respectively arranged at each of the extension arms of the polarization seat.

6. The polarization device according to claim 2 further comprises at least two first balls, wherein the top surface of each guide rail has a first guide groove, and the polarization unit has two second guide grooves, which are formed on the seat body and connected to the sinking space, wherein a portion of the first ball is rollably retained in the first guide groove of the guide rail, and a portion is rollably retained in the second guide groove of the polarization unit.

7. The polarization device according to any one of claims 1 to 5, wherein the polarization seat has a polarization cavity, the seat channel is connected to the polarization cavity, and the polarization part is rotatably arranged in the polarization cavity of the polarization seat.

8. The polarization device according to claim 7, wherein the polarization unit further comprises a second circuit board, at least one group of second coils and at least one group of second magnets, the second circuit board having a board channel, the second circuit board being mounted on the polarization seat, and the board channel of the second circuit board corresponds to the seat channel of the polarization seat and is connected to the polarization cavity, the second coil is mounted on the second circuit board and the polarization cavity located on the polarization seat, the second magnet is arranged in the polarization part, and the position of the second magnet corresponds to the position of the second coil.

9. The polarization device according to claim 8, wherein the polarization unit comprises three groups of the second coils and three groups of the second magnets, the three groups of the second coils are arranged at intervals, the three groups of the second magnets are arranged at intervals, and the position of each group of the second magnets corresponds to the position of each group of the second coils, respectively.

10. The polarization device according to claim 8 further comprises at least one second ball, wherein the polarization seat has at least one third guide groove formed in the seat body and the polarization cavity connected thereto, wherein the polarization part has at least one fourth guide groove, wherein a portion of the second ball is rollably retained in the third guide groove of the polarization seat, and a portion is rollably retained in the fourth guide groove of the polarization part.

11. A polarization device according to any one of claims 1 to 5, wherein the polarization seat has a polarization cavity, and the seat channel is connected to the polarization cavity, wherein the polarization part is rotatably arranged in the polarization cavity of the polarization seat, wherein the polarization unit further includes a second circuit board, at least one group of second coils and at least one group of second magnets, the second circuit board has a board channel, the second circuit board is mounted on the polarization seat, and the board channel of the second circuit board corresponds to the seat channel of the polarization seat and is connected to the polarization cavity, the second coil is mounted on the second circuit board and the polarization cavity located on the polarization seat, the second magnet is arranged in the polarization part, and the position of the second magnet corresponds to the position of the second coil, wherein the second circuit board is connected to the first circuit board.

12. The polarization device according to claim 11, wherein the driving unit further comprises two groups of conductors, the two groups of conductors are respectively arranged on the driving seat and connected to the first circuit board, wherein the polarization unit further comprises two groups of sliding arms, the two groups of sliding arms extend from the second circuit board to the two groups of conductors respectively, and the free ends of the sliding arms are slidably connected to the conductors.

13. A camera module, characterized in that: The camera module comprises: a module device; and The polarization device according to any one of claims 1 to 12, wherein the polarization device is configured to allow the driving unit to drive the polarization unit to be moved to the photosensitive path of the module device or to be moved away from the photosensitive path of the module device.

14. An electronic device, characterized in that: include: An electronic device body; and The camera module according to claim 13, wherein the camera module is arranged on the electronic device body.

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