Variable aperture group, optical lens module, camera module and electronic device

Abstract

The invention discloses an optical lens module which comprises a lens and a variable aperture group which are correspondingly arranged. The variable aperture group comprises a rotatable blade, a driving part and an attraction mechanism. The rotatable blade is arranged around the optical axis of the lens and forms a light through hole. The driving part comprises a rotating piece, a fixed piece, a driving magnet and a coil. The rotating part and the rotatable blade are correspondingly arranged to drive the rotatable blade to rotate so as to adjust the aperture size of the light through hole. The fixed part and the rotating part are correspondingly arranged. The driving magnet is arranged on the rotating piece. The coil and the driving magnet are correspondingly arranged to drive the rotating piece to rotate relative to the fixed piece. The attractive force mechanism provides an attractive force acting between the rotating member and the fixed member and a driving force acting on the rotatable blade, so that the light through hole is maintained in an expanded state. The attractive force comprises magnetic force of the first magnetic element acting on the fixed part by the rotating part. The invention further discloses a camera module with the optical lens module and an electronic device with the camera module.

Description

Technical Field

[0001] The present disclosure relates to a variable aperture group, an optical lens module, a camera module and an electronic device, and in particular to a variable aperture group, an optical lens module and a camera module suitable for an electronic device. Background Art

[0002] As semiconductor process technology becomes more sophisticated, the performance of electronic photosensitive elements has been improved, and pixels can reach a smaller size. Therefore, optical lenses with high imaging quality have become an indispensable part. In addition, with the rapid development of technology, the application range of mobile devices equipped with optical lenses has become wider, and the requirements for optical lenses have also become more diverse.

[0003] In recent years, micro camera modules have been applied to more fields, such as portable devices such as smart phones and sports cameras, as well as head-mounted devices such as augmented reality (AR) and virtual reality (VR), or drones. In addition, the hardware of micro camera modules is constantly updated, such as using larger photosensitive elements and using imaging lenses with better image quality. The larger photosensitive elements can bring better imaging quality to users, but will make the background blurred. An existing variable aperture module can be used to adjust the degree of background blur and control the amount of light entering the imaging lens. However, when the shading blades of the existing variable aperture module fail mechanically, the aperture function of the optical lens will interfere with each other, making the original function of the optical lens unusable. Summary of the invention

[0004] In view of the above-mentioned problems, the present disclosure discloses a variable aperture assembly, an optical lens module, a camera module and an electronic device, which help to avoid the problem in the conventional technology that the original function of the optical lens cannot be used due to mechanical failure of the shading blades of the variable aperture module.

[0005] The present disclosure provides an optical lens module, which includes at least one lens and a variable aperture group, and the variable aperture group is arranged corresponding to the lens. The variable aperture group preferably includes a plurality of rotatable blades, a driving unit and an attraction mechanism. The rotatable blades are rotatably arranged around the optical axis of the lens and together form a light-through hole, and the optical axis passes through the light-through hole. The driving unit includes a rotating member, a fixed member, at least one driving magnet and at least one coil. The rotating member is arranged corresponding to the rotatable blades, and the rotating member is used to drive the rotatable blades to rotate to adjust the aperture size of the light-through hole. The fixed member is arranged corresponding to the rotating member, and the rotating member has a degree of freedom relative to the fixed member that can rotate along a circumferential direction perpendicular to and around the optical axis. The driving magnet is arranged on the rotating member, and the coil is arranged corresponding to the driving magnet to drive the rotating member to rotate. Preferably, the attraction mechanism provides an attraction acting between the rotating member and the fixed member, and the attraction includes a magnetic force of the rotating member acting on a first magnetic element fixed to the fixed member. Preferably, the attraction mechanism provides a driving force acting on the rotatable blades to maintain the light-through hole in an expanded state.

[0006] The present disclosure further provides an optical lens module, which includes at least one lens and a variable aperture group, and the variable aperture group is arranged corresponding to the lens. The variable aperture group preferably includes a plurality of rotatable blades, a driving unit and a preload mechanism. The rotatable blades are rotatably arranged around the optical axis of the lens and together form a light-through hole, and the optical axis passes through the light-through hole. The driving unit includes a rotating member, a fixed member, at least one driving magnet and at least one coil. The rotating member is arranged corresponding to the rotatable blades, and the rotating member is used to drive the rotatable blades to rotate to adjust the aperture size of the light-through hole. The fixed member is arranged corresponding to the rotating member, and the rotating member has a degree of freedom relative to the fixed member that can rotate along a circumferential direction perpendicular to and around the optical axis. The driving magnet is arranged on the rotating member, and the coil is arranged corresponding to the driving magnet to drive the rotating member to rotate. Preferably, the preload mechanism provides an attractive force acting between the rotating member and the fixed member, and the attractive force includes a magnetic force of the rotating member acting on a certain magnet arranged on the fixed member. Preferably, the preload mechanism provides a driving force acting on the rotatable blades to maintain the light-through hole in an expanded state.

[0007] The present disclosure further provides an optical lens module, which includes at least one lens and a variable aperture group, and the variable aperture group is arranged corresponding to the lens. The variable aperture group preferably includes a plurality of rotatable blades, a driving unit and a preload mechanism. The rotatable blades are rotatably arranged around the optical axis of the lens and together form a light-through hole, and the optical axis passes through the light-through hole. The driving unit includes a rotating member, a fixed member, at least one driving magnet and at least one coil. The rotating member is arranged corresponding to the rotatable blades, and the rotating member is used to drive the rotatable blades to rotate to adjust the aperture size of the light-through hole. The fixed member is arranged corresponding to the rotating member, and the rotating member has a degree of freedom relative to the fixed member that can rotate along a circumferential direction perpendicular to and around the optical axis. The driving magnet is arranged on the rotating member, and the coil is arranged corresponding to the driving magnet to drive the rotating member to rotate. Preferably, the preload mechanism provides a repulsive force acting between the rotating member and the fixed member, and the repulsive force includes a magnetic force of the rotating member acting on a certain magnet arranged on the fixed member. Preferably, the preload mechanism provides a driving force acting on the rotatable blades to maintain the light-through hole in an expanded state.

[0008] The present disclosure provides a camera module, which includes the aforementioned optical lens module and an electronic photosensitive element, wherein the electronic photosensitive element is disposed on an imaging surface of the optical lens module.

[0009] The present disclosure provides an electronic device, which includes the aforementioned camera module.

[0010] According to the variable aperture assembly, optical lens module, camera module and electronic device disclosed in the present disclosure, by configuring an attraction mechanism or a preload force mechanism in the variable aperture assembly, the optical lens module can maintain a normally open aperture state when it is not in use or not powered on, so as to ensure that the aperture functions of the optical lens module will not interfere with each other, and further ensure the basic shooting function of the optical lens module when a mechanical failure occurs in the rotatable blades.

[0011] The above description of the contents of the present disclosure and the following description of the embodiments are used to demonstrate and explain the spirit and principle of the present disclosure, and to provide further explanation of the claims of the present disclosure. BRIEF DESCRIPTION OF THE DRAWINGS

[0012] Figure 1 A three-dimensional schematic diagram of a variable aperture assembly of an optical lens module according to a first embodiment of the present disclosure is shown.

[0013] Figure 2 Draw Figure 1 Schematic diagram of the variable aperture group.

[0014] Figure 3 Draw Figure 2 Schematic diagram of the relative position relationship between the first magnetic element and the second magnetic element buried in the fixing member.

[0015] Figure 4 Draw Figure 1 A partially exploded diagram of the variable aperture group after removing the upper cover.

[0016] Figure 5 Draw Figure 1 Schematic diagram of the action of the attraction mechanism of the variable aperture group.

[0017] Figure 6 Draw Figure 1 Schematic diagram of the configuration of the driving unit of the variable aperture group.

[0018] Figure 7 FIG. 4 is a cross-sectional schematic diagram of an optical lens module according to a first embodiment of the present disclosure.

[0019] Figure 8 and Fig. 9 Draw separately Figure 3 A three-dimensional schematic diagram of two first magnetic elements.

[0020] Fig.10 Draw Fig. 9 A front view schematic diagram of a first magnetic element.

[0021] Figures 11 to 13 A three-dimensional schematic diagram of two first magnetic elements and a front schematic diagram of one of the two first magnetic elements according to another implementation of the present disclosure are respectively shown.

[0022] Figures 14 to 16 A three-dimensional schematic diagram of two first magnetic elements and a front schematic diagram of one of the two first magnetic elements according to another implementation of the present disclosure are respectively shown.

[0023] Figures 17 to 19 A three-dimensional schematic diagram of two first magnetic elements and a front schematic diagram of one of the two first magnetic elements according to another implementation of the present disclosure are respectively shown.

[0024] Figure 20 to Figure 22 A three-dimensional schematic diagram of two first magnetic elements and a front schematic diagram of one of the two first magnetic elements according to another implementation of the present disclosure are respectively shown.

[0025] Figure 23 to Figure 25 A three-dimensional schematic diagram of two first magnetic elements and a front schematic diagram of one of the two first magnetic elements according to another implementation of the present disclosure are respectively shown.

[0026] Fig.26 FIG. 4 is a schematic diagram showing the configuration of a driving unit of a variable aperture assembly according to another embodiment of the present disclosure.

[0027] Fig. 27 A cross-sectional schematic diagram of an optical lens module according to another implementation aspect of the first embodiment of the present disclosure is shown.

[0028] Fig.28 A schematic diagram illustrating the configuration and function of an attraction mechanism of a variable aperture assembly according to another embodiment of the present disclosure is shown.

[0029] Fig.29 A three-dimensional schematic diagram of a variable aperture assembly of an optical lens module according to a second embodiment of the present disclosure is shown.

[0030] Fig.30 Draw Fig.29 Schematic diagram of the variable aperture group.

[0031] Fig.31 Draw Fig.29 A partially exploded diagram of the variable aperture group after removing the upper cover.

[0032] Fig.32 Draw Fig.29 Schematic diagram of the working principle of the preload force mechanism of the variable aperture group.

[0033] Fig.33 A partially exploded schematic diagram of a variable aperture assembly after removing an upper cover according to another implementation aspect of the second embodiment of the present disclosure is shown.

[0034] Fig.34 Draw Fig.33 Schematic diagram of the working principle of the preload force mechanism of the variable aperture group.

[0035] Fig.35 A partially exploded schematic diagram of a variable aperture assembly after removing an upper cover according to another embodiment of the present disclosure is shown.

[0036] Fig.36 Draw Fig.35 Schematic diagram of the working principle of the preload force mechanism of the variable aperture group.

[0037] Fig.37 A partially exploded schematic diagram of a variable aperture assembly after removing an upper cover according to another embodiment of the present disclosure is shown.

[0038] Fig.38 Draw Fig.37 Schematic diagram of the working principle of the preload force mechanism of the variable aperture group.

[0039] Fig.39 A partially exploded schematic diagram of a variable aperture assembly after removing an upper cover according to another embodiment of the present disclosure is shown.

[0040] Fig.40 Draw Fig.39 Schematic diagram of the working principle of the preload force mechanism of the variable aperture group.

[0041] Fig.41FIG. 4 is a schematic diagram showing the configuration and function of a preload force mechanism of a variable aperture assembly according to another embodiment of the present disclosure.

[0042] Fig.42 A schematic diagram showing the configuration and function of the attraction force mechanism and preload force mechanism of a variable aperture assembly according to another embodiment of the present disclosure is shown.

[0043] Fig.43 A three-dimensional schematic diagram of a variable aperture assembly of an optical lens module according to a third embodiment of the present disclosure is shown.

[0044] Fig.44 Draw Fig.43 Schematic diagram of the variable aperture group.

[0045] Fig.45 Draw Fig.44 Schematic diagram of the relative position relationship of the first magnetic element buried in the fixing member.

[0046] Fig.46 Draw Fig.43 A partially exploded diagram of the variable aperture group after removing the upper cover.

[0047] Fig.47 Draw Fig.43 Schematic diagram of the working principle of the preload force mechanism of the variable aperture group.

[0048] Fig.48 A three-dimensional schematic diagram of a variable aperture assembly of an optical lens module according to a fourth embodiment of the present disclosure is shown.

[0049] Fig.49 Draw Fig.48 Schematic diagram of the variable aperture group.

[0050] Fig.50 Draw Fig.49 Schematic diagram of the relative position relationship of the second magnetic element buried in the fixing member.

[0051] Fig.51 Draw Fig.48 Partially exploded schematic diagram of the variable aperture group.

[0052] Fig.52 Draw Fig.48 Schematic diagram of the action of the attraction mechanism of the variable aperture group.

[0053] Fig.53 A three-dimensional schematic diagram of a variable aperture assembly of an optical lens module according to a fifth embodiment of the present disclosure is shown.

[0054] Fig.54 Draw Fig.53 Schematic diagram of the variable aperture group.

[0055] Fig.55 Draw Fig.54 Schematic diagram of the relative position relationship of the second magnetic element buried in the fixing member.

[0056] Fig.56 Draw Fig.53 Partially exploded schematic diagram of the variable aperture group.

[0057] Fig.57 Draw Fig.53 Schematic diagram of the action of the attraction mechanism of the variable aperture group.

[0058] Fig.58 A three-dimensional schematic diagram of one side of an electronic device according to a sixth embodiment of the present disclosure is shown.

[0059] Fig.59 Draw Fig.58 A three-dimensional schematic diagram of the other side of the electronic device.

[0060] Fig.60 A schematic diagram illustrating capturing an image using an ultra-wide-angle camera module is shown.

[0061] Fig.61 A schematic diagram showing the process of capturing an image using a high-pixel camera module is shown.

[0062] Fig.62 A schematic diagram illustrating capturing an image using a telephoto camera module is shown.

[0063] Fig.63 A three-dimensional schematic diagram of one side of an electronic device according to a seventh embodiment of the present disclosure is shown.

[0064] Fig.64 A three-dimensional schematic diagram of an electronic device according to an eighth embodiment of the present disclosure is shown.

[0065] Fig.65 Draw Fig.64 A schematic side view of an electronic device.

[0066] Fig.66 Draw Fig.64 A schematic top view of an electronic device.

[0067]

Explanation of symbols

[0068] 9,9g: Optical lens module

[0069] 90,90g: Lens

[0070] 1,1f,2,2h,2j,2k,2m,3,4,5: variable aperture group

[0071] 10,20,30,40,50: Upper cover

[0072] 400,500: protrusion

[0073] 11,21,21h,21j,21k,21m,31,41,51: Rotatable blades

[0074] 110,210,210h,210j,210k,210m,310,410,510: light hole

[0075] 12,22,22j,22m,32,42,52: drive unit

[0076] 120,220,220h,220j,220k,220m,320,420,520:Fixed parts

[0077] 121,121f,221,221h,221j,221k,221m,321,421,521: Rotating parts

[0078] 122,222,322,422,522: Bearing components

[0079] 123,123n,223j,223k,423: Moving magnet

[0080] 124,124f,124n,224,224h,224j,224k,224m,224p,224q,324,424,524: Driving magnet

[0081] 125,125f,225,225h,225j,225k,225m,325,425,525: Coil

[0082] 226,226h,226j,226k,226m,226p,226q: Fixed magnet

[0083] 13,23,33,43,53:Printed circuit boards

[0084] 14, 14a, 14b, 14c, 14d, 14e, 14n, 24q, 34: first magnetic element

[0085] 140,140a,140b,140c,140d,140e,340: extension

[0086] 1400a, 1400b, 1400c, 1400d: elastic section

[0087] HST:Hollow structure

[0088] TS: Tooth structure

[0089] 141,141a,141b,141c,141d,141e,341: base

[0090] TR: Turning Point

[0091] 142e: Buffer

[0092] 15,45,55: Second magnetic element

[0093] 26m: The third magnetic element

[0094] OA: Optical Axis

[0095] S: Internal space

[0096] D1: Circumferential

[0097] AF: Attraction

[0098] RF: Repulsive force

[0099] P1: First magnetic pole

[0100] P2: Second magnetic pole

[0101] HM: Height of the first magnetic element

[0102] HB: Height of the bearing element

[0103] HE: Height of extension

[0104] HS: height of elastic section

[0105] 60a,60b,60c,60d,70,70a,70b,70c,70d,70e,70f,70g,70h,80: Camera module

[0106] 6,7,8: Electronic devices

[0107] 61,71: Flash module

[0108] 62: Focus assist module

[0109] 63: Image Signal Processor

[0110] 64: Display module DETAILED DESCRIPTION

[0111] The detailed features and advantages of the present disclosure are described in detail in the following embodiments, and the content is sufficient for any person skilled in the relevant art to understand the technical content of the present disclosure and implement it accordingly. According to the content disclosed in this specification, the scope of the patent application and the drawings, any person skilled in the relevant art can easily understand the relevant purposes and advantages of the present disclosure. The following examples further illustrate the concept of the present disclosure in detail, but do not limit the scope of the present disclosure in any way.

[0112] The present disclosure provides an optical lens module, which includes at least one lens and a variable aperture group, and the variable aperture group is arranged corresponding to the at least one lens. The number of lenses in the optical lens module can be one or more, and the present disclosure is not limited thereto. The variable aperture group can be arranged on the object side of the lens or between the lenses, and the present disclosure is not limited thereto.

[0113] The variable aperture group includes a plurality of rotatable blades and a driving unit. The rotatable blades are rotatably arranged around the optical axis of the lens and together form a light hole, and the optical axis passes through the light hole. The driving unit includes a rotating part, a fixed part, at least one driving magnet and at least one coil.

[0114] The rotating member is arranged corresponding to the rotatable blades, and the rotating member is used to drive the rotatable blades to rotate so as to adjust the aperture size of the light-through hole.

[0115] The fixed part and the rotating part are arranged correspondingly, and the rotating part has a degree of freedom relative to the fixed part, which can rotate along a circumferential direction perpendicular to and around the optical axis. The rotating part can be regarded as a rotor, the fixed part can be regarded as a stator, and the rotating part can rotate relative to the fixed part.

[0116] The driving magnet is disposed on the rotating member, and the coil is disposed corresponding to the driving magnet to drive the rotating member to rotate. The coil is disposed on the fixed member, the driving magnet rotates with the rotating member, and the coil is fixed. The number of the driving magnets and the number of the coils can be the same and can be one or more, and the present disclosure is not limited thereto.

[0117] In one embodiment, the variable aperture group may further include an attractive force mechanism. The attractive force mechanism may provide an attractive force acting between the rotating member and the fixed member, and the attractive force may include a magnetic force of the rotating member acting on a first magnetic element fixed to the fixed member. The attractive force mechanism may provide a driving force acting on the rotatable blades to maintain the light hole in an expanded state. The first magnetic element may be fixed to the fixed member by, for example, assembly, embedded injection or dispensing, but the present disclosure is not limited thereto. The magnetic element described in the present disclosure is, for example, made of a magnetic material, and the magnetic element may interact with a magnet to generate a magnetic force that attracts each other between the two, but the present disclosure is not limited thereto.

[0118] In another embodiment, the variable aperture assembly may further include a preload mechanism. The preload mechanism may provide an attractive force acting between the rotating member and the fixed member, and the attractive force may include a magnetic force of the rotating member acting on a fixed magnet (Stator Magnet) disposed on the fixed member. The preload mechanism may provide a driving force acting on the rotatable blades to maintain the light hole in an expanded state. The fixed magnet may be fixed to the fixed member, and the fixed magnet may be fixed to the fixed member by, for example, assembly or dispensing, but the present disclosure is not limited thereto.

[0119] In another embodiment, the variable aperture assembly may further include a preload mechanism. The preload mechanism may provide a repulsive force acting between the rotating member and the fixed member, and the repulsive force may include a magnetic force of the rotating member acting on a certain magnet disposed on the fixed member. The preload mechanism may provide a driving force acting on the rotatable blades to maintain the light hole in an expanded state. The fixed magnet may be fixed to the fixed member, and the fixed magnet may be fixed to the fixed member, for example, by assembly or dispensing, but the present disclosure is not limited thereto.

[0120] The optical lens module disclosed in the present disclosure configures an attraction mechanism or a preload force mechanism in the variable aperture group, so that the optical lens module can maintain a normally open aperture state when it is not in use or not powered on, thereby ensuring that the aperture functions of the optical lens module will not interfere with each other, and further ensuring the basic shooting function of the optical lens module when a mechanical failure occurs in the movable blades.

[0121] The driving part may further include at least two bearing elements arranged around the optical axis, and the at least two bearing elements are arranged between the rotating member and the fixed member. In addition, the at least two bearing elements support the rotating member so that the rotating member can rotate circumferentially relative to the fixed member. Thereby, the bearing element is aligned with the optical axis, which helps to improve the rotation stability of the rotating member. The bearing element may be, for example, a ball element, but the present disclosure is not limited thereto.

[0122] The variable aperture assembly may further include an upper cover fixed to the fixing member, wherein an inner space is formed between the upper cover and the fixing member, and the rotatable blades are disposed in the inner space. The upper cover may be a plastic element or a magnetic element, but the present disclosure is not limited thereto.

[0123] In one embodiment, the upper cover is the first magnetic element. Thus, the upper cover is a magnetic element, and the conditions required for the attraction mechanism can be achieved through mold processing to cooperate with the rotating member. However, the present disclosure is not limited to this. In another embodiment, the upper cover and the first magnetic element may be different elements, wherein the first magnetic element may include an extension portion and a base portion connected to each other, wherein the extension portion is arranged in a direction parallel to the optical axis, the base portion is arranged in a direction perpendicular to the optical axis, and the connection between the base portion and the extension portion includes a turning point.

[0124] The extension portion may include an elastic segment, the height of the extension portion is HE, and the height of the elastic segment is HS, which may satisfy the following condition: 0≤HS / HE≤1. In this way, the production qualification rate can be improved under a specific structural ratio. The height of the extension portion may refer to the length of the extension portion in a direction parallel to the optical axis. The height of the elastic segment may refer to the length of the elastic segment in a direction parallel to the optical axis. Please refer to Fig.13 , is a schematic diagram illustrating a height HE of an extension portion and a height HS of an elastic section according to one embodiment of the present disclosure.

[0125] The height of the first magnetic element is HM, and the height of each bearing element is HB, which can satisfy the following condition: 0.1≤HB / HM≤1. In this way, the process efficiency can be improved under a specific structural ratio. The height of the first magnetic element can refer to the length of the first magnetic element in a direction parallel to the optical axis. The height of each bearing element can refer to the length of each bearing element in a direction parallel to the optical axis. Please refer to Figure 2 and Fig.10 , is a schematic diagram illustrating a height HM of a first magnetic element and a height HB of a bearing element according to a first embodiment of the present disclosure.

[0126] The first magnetic element may further include a buffer portion disposed on the extension portion, thereby providing a buffer when the moving magnet or the driving magnet and the first magnetic element are close to each other and in contact due to attraction, so as to reduce impact and vibration, thereby ensuring the stability of the variable aperture assembly.

[0127] The variable aperture assembly may further include at least one second magnetic element disposed corresponding to the at least one driving magnet. Thereby, a preload force may be formed between the second magnetic element and the driving magnet to maintain the actuation of the rotating member and the fixed member so that the variable aperture assembly will not disintegrate. The preload force formed between the second magnetic element and the driving magnet may be provided, for example, by the magnetic attraction force of the interaction between the second magnetic element and the driving magnet.

[0128] The first magnetic element and the second magnetic element can be formed as one piece, thereby simplifying the assembly process and improving production efficiency.

[0129] In one embodiment, the driving magnet and the coil may be arranged in a direction perpendicular to the optical axis. This can be used as a side driving mechanism of the rotating member. However, the present disclosure is not limited to this. In another embodiment, the driving magnet and the coil may be arranged in a direction parallel to the optical axis. This can be used as a bottom driving mechanism of the rotating member.

[0130] In one embodiment, the magnetic force of the rotating member may act between the first magnetic element and the driving magnet. However, the present disclosure is not limited thereto. In another embodiment, the magnetic force of the rotating member may act between the first magnetic element and a moving magnet (rotor magnet) disposed on the rotating member.

[0131] The variable aperture assembly may further include a printed circuit board (PCB), and the printed circuit board is correspondingly arranged and electrically connected to the driving unit. The printed circuit board may be, for example, a flexible printed circuit board (FPC), but the present disclosure is not limited thereto.

[0132] In one embodiment, the magnetic force of the rotating member may act between the fixed magnet and the driving magnet. However, the present disclosure is not limited thereto. In another embodiment, the magnetic force of the rotating member may act between the fixed magnet and the moving magnet disposed on the rotating member. In yet another embodiment, the magnetic force of the rotating member may act between the fixed magnet and a third magnetic element fixed to the rotating member. The third magnetic element may be fixed to the rotating member by assembly, embedded injection molding, or dispensing, but the present disclosure is not limited thereto.

[0133] The maximum field of view of the optical lens module is FOV, which can meet the following conditions: 50 degrees ≤ FOV ≤ 105 degrees. Thus, the appropriate maximum field of view can make the aperture size of the light hole adjustable.

[0134] The aperture value (F-number) of the optical lens module is FNO, which can meet the following conditions: 0.9≤FNO≤5.6. Thus, the change of the aperture size can make the aperture value of the optical lens module adapt to different shooting environments. Among them, the aperture values ​​commonly used by the optical lens module for photography in different shooting environments are, for example, 1.6, 2.8, 2.0, 2.4, 3.2, and 4.0, but are not limited thereto.

[0135] The present disclosure provides a camera module, which includes the aforementioned optical lens module and an electronic photosensitive element, wherein the electronic photosensitive element is disposed on an imaging surface of the optical lens module.

[0136] The present disclosure provides an electronic device, which includes the aforementioned camera module.

[0137] The various technical features of the optical lens module disclosed above can be configured in combination to achieve corresponding effects.

[0138] According to the above implementation modes, specific embodiments are proposed below and described in detail with reference to the accompanying drawings.

[0139] <First Embodiment>

[0140] Please refer to Figures 1 to 10 ,in Figure 1 A three-dimensional schematic diagram of a variable aperture assembly of an optical lens module according to a first embodiment of the present disclosure is shown. Figure 2 Draw Figure 1 Schematic diagram of the variable aperture group. Figure 3 Draw Figure 2 A schematic diagram of the relative position relationship between the first magnetic element and the second magnetic element buried in the fixing member, Figure 4 Draw Figure 1 A partial exploded diagram of the variable aperture group after removing the upper cover. Figure 5 Draw Figure 1 Schematic diagram of the attraction mechanism of the variable aperture group, Figure 6 Draw Figure 1 Schematic diagram of the configuration of the drive unit of the variable aperture group, Figure 7 FIG. 4 is a cross-sectional diagram of an optical lens module according to a first embodiment of the present disclosure. Figure 8 and Fig. 9 Draw separately Figure 3 A three-dimensional schematic diagram of two first magnetic elements in FIG. Fig.10 Draw Fig. 9 A front view schematic diagram of a first magnetic element.

[0141] The optical lens module 9 includes at least one lens 90 and a variable aperture group 1 (such as Figure 7 As shown), the variable aperture group 1 is arranged corresponding to the lens 90.

[0142] The variable aperture assembly 1 comprises an upper cover 10, a plurality of rotatable blades 11, a driving unit 12, a printed circuit board 13, two first magnetic elements 14, two second magnetic elements 15, and an attraction mechanism. The rotatable blades 11 are rotatably arranged around the optical axis OA of the lens 90 and together form a light hole 110, and the optical axis OA passes through the light hole 110.

[0143] The upper cover 10 is disposed on the driving part 12 and together forms an internal space S, and the rotatable blade 11 is disposed in the internal space S. In addition, the printed circuit board 13 is disposed corresponding to the driving part 12 and is electrically connected. Specifically, the driving part 12 includes a fixed part 120, a rotating part 121, four bearing elements 122, two moving magnets 123, two driving magnets 124 and two coils 125. Among them, the upper cover 10 is fixed to the fixed part 120, and the internal space S for the rotatable blade 11 to be disposed is formed between the upper cover 10 and the fixed part 120. In addition, the printed circuit board 13 is attached to the fixed part 120.

[0144] The fixed member 120 is disposed correspondingly to the rotating member 121, and the rotating member 121 has a degree of freedom relative to the fixed member 120, which can rotate along the circumferential direction D1 perpendicular to and around the optical axis OA. In addition, the rotating member 121 is disposed correspondingly to the rotatable blade 11, and the rotating member 121 is used to drive the rotatable blade 11 to rotate so as to adjust the aperture size of the light-through hole 110. It should be understood that the upper cover 10, the rotating member 121 and the fixed member 120 all have openings corresponding to the light-through hole 110 of the rotatable blade 11, so that light can pass through the openings and the light-through hole 110.

[0145] The bearing elements 122 are disposed between the rotating member 121 and the fixed member 120 and are disposed around the optical axis OA. The bearing elements 122 support the rotating member 121 so that the rotating member 121 can rotate relative to the fixed member 120 along the circumferential direction D1 .

[0146] The two moving magnets 123 are disposed on the rotating member 121 and are respectively located on opposite sides of the rotating member 121. The two driving magnets 124 are disposed on the rotating member 121 and are respectively located on opposite sides of the rotating member 121. In this embodiment, the two moving magnets 123 and the two driving magnets 124 are alternately disposed in the circumferential direction D1 perpendicular to and surrounding the optical axis OA.

[0147] The two coils 125 are disposed on the printed circuit board 13 and electrically connected to the printed circuit board 13 , and the two coils 125 are respectively disposed corresponding to the two driving magnets 124 to drive the rotating member 121 to rotate, thereby driving the rotatable blade 11 to rotate, so as to adjust the aperture size of the light hole 110 .

[0148] like Figure 2 , Figure 3 and Figures 8 to 10As shown, the two first magnetic elements 14 are fixed to the fixing member 120, and each of the first magnetic elements 14 includes an extension portion 140 and a base portion 141 connected to each other, wherein the extension portion 140 is arranged in a direction parallel to the optical axis OA, the base portion 141 is arranged in a direction perpendicular to the optical axis OA, and the connection between the base portion 141 and the extension portion 140 includes a turning point TR. The first magnetic element 14 is used to interact with the moving magnet 123 arranged on the rotating member 121 to maintain the light hole 110 in an expanded state (detailed operation will be described later). In this embodiment, the first magnetic element 14 is buried in the fixing member 120.

[0149] like Figure 2 and Figure 3 As shown, the two second magnetic elements 15 are fixed to the fixing member 120, and the two second magnetic elements 15 are respectively arranged corresponding to the two driving magnets 124, so that a preload force is formed between the second magnetic elements 15 and the driving magnets 124 to maintain the actuation of the rotating member 121 and the fixing member 120. In this embodiment, the second magnetic element 15 is embedded in the fixing member 120.

[0150] The attraction mechanism provides an attraction force AF acting between the rotating member 121 and the fixed member 120, and the attraction force AF includes a magnetic force of the rotating member 121 acting on the first magnetic element 14. In addition, the attraction mechanism provides a driving force acting on the rotatable blade 11, so that the light hole 110 is maintained in an expanded state. In this embodiment, the magnetic force of the rotating member 121 acts between the first magnetic element 14 and the moving magnet 123. In detail, Figure 4 and Figure 5 As shown, the moving magnet 123 arranged on the rotating member 121 corresponds to the first magnetic element 14 arranged on the fixed member 120. Through the magnetic force formed between the moving magnet 123 and the first magnetic element 14, the moving magnet 123 is normally subjected to the attractive force AF toward the first magnetic element 14, so that the rotating member 121 can be driven to rotate relative to the fixed member 120 when the optical lens module 9 is not powered (for example, when no current passes through the coil 125), thereby providing a driving force to rotate the rotatable blade 11 in a direction that can make the light hole 110 expand.

[0151] The maximum viewing angle of the optical lens module 9 is FOV, which satisfies the following conditions: 50 degrees ≤ FOV ≤ 105 degrees. The aperture value of the optical lens module 9 is FNO, which satisfies the following conditions: 0.9 ≤ FNO ≤ 5.6.

[0152] like Fig.10 As shown, each of the first magnetic elements 14 has a height HM, and each of the bearing elements 122 has a height HB, which satisfy the following conditions: HM=1.314 mm; HB=0.8 mm; and HB / HM=0.609.

[0153] The present disclosure is not limited to the above-mentioned first magnetic element 14. The following further provides five other embodiments of the first magnetic element 14a, 14b, 14c, 14d and 14e of the present disclosure. The first magnetic elements 14a, 14b, 14c, 14d and 14e in the following embodiments are similar to the above-mentioned first magnetic element 14, and the same or similar reference numerals are used to represent the same elements. The functions and effects of each element are the same or similar to those mentioned above, and will not be repeated here.

[0154] For example, see Figures 11 to 13 , which respectively illustrate three-dimensional schematic diagrams of two first magnetic elements and a front view schematic diagram of one of them according to another embodiment of the present disclosure. In one embodiment of the present disclosure, the first magnetic element 14a includes an extension portion 140a and a base portion 141a, wherein the extension portion 140a includes an elastic section 1400a, and the elastic section 1400a may have a hollow structure HST. Wherein, the height of the extension portion 140a is HE, and the height of the elastic section 1400a is HS, which satisfies the following conditions: HS = 0.614 mm; HE = 1.314 mm; and HS / HE = 0.467. In addition, the height of each of the first magnetic elements 14a is HM, and the height of each of the bearing elements 122 is HB, which satisfies the following conditions: HM = 1.314 mm; HB = 0.8 mm; and HB / HM = 0.609.

[0155] For another example, please refer to Figures 14 to 16 , which respectively illustrate three-dimensional schematic diagrams of two first magnetic elements and a front view schematic diagram of one of them according to another embodiment of the present disclosure. In one embodiment of the present disclosure, the first magnetic element 14b includes an extension portion 140b and a base portion 141b, wherein the extension portion 140b includes an elastic section 1400b, and both side edges of the elastic section 1400b have a toothed structure TS. Wherein, the height of the extension portion 140b is HE, and the height of the elastic section 1400b is HS, which satisfies the following conditions: HS = 0.614 mm; HE = 1.314 mm; and HS / HE = 0.467. In addition, the height of each of the first magnetic elements 14b is HM, and the height of each of the bearing elements 122 is HB, which satisfies the following conditions: HM = 1.314 mm; HB = 0.8 mm; and HB / HM = 0.609.

[0156] For another example, please refer to Figures 17 to 19, which respectively illustrate three-dimensional schematic diagrams of two first magnetic elements and a front view schematic diagram of one of them according to another embodiment of the present disclosure. In one embodiment of the present disclosure, the first magnetic element 14c includes an extension portion 140c and a base portion 141c, wherein the extension portion 140c includes an elastic section 1400c, and the elastic section 1400c is serrated. Wherein, the height of the extension portion 140c is HE, and the height of the elastic section 1400c is HS, which satisfies the following conditions: HS = 1.02 mm; HE = 1.314 mm; and HS / HE = 0.776. In addition, the height of each of the first magnetic elements 14c is HM, and the height of each of the bearing elements 122 is HB, which satisfies the following conditions: HM = 1.314 mm; HB = 0.8 mm; and HB / HM = 0.609.

[0157] For another example, please refer to Figure 20 to Figure 22 , which respectively illustrate three-dimensional schematic diagrams of two first magnetic elements and a front view schematic diagram of one of them according to another embodiment of the present disclosure. In one embodiment of the present disclosure, the first magnetic element 14d includes an extension portion 140d and a base portion 141d, wherein the extension portion 140d includes an elastic section 1400d, and both side edges of the elastic section 1400d have a toothed structure TS. Wherein, the height of the extension portion 140d is HE, and the height of the elastic section 1400d is HS, which satisfies the following conditions: HS = 0.614 mm; HE = 0.901 mm; and HS / HE = 0.681. In addition, the height of each of the first magnetic elements 14d is HM, and the height of each of the bearing elements 122 is HB, which satisfies the following conditions: HM = 0.901 mm; HB = 0.8 mm; and HB / HM = 0.888.

[0158] For another example, please refer to Figure 23 to Figure 25 , which respectively illustrate three-dimensional schematic diagrams of two first magnetic elements and a front view schematic diagram of one of them according to another embodiment of the present disclosure. In one embodiment of the present disclosure, the first magnetic element 14e includes an extension portion 140e and a base portion 141e, and the first magnetic element 14e further includes a buffer portion 142e disposed on the extension portion 140e. The buffer portion 142e may, for example, protrude from the fixing member 120 and correspond to the moving magnet 123. The height of each of the first magnetic elements 14e is HM, and the height of each of the bearing elements 122 is HB, which satisfy the following conditions: HM = 1.314 mm; HB = 0.8 mm; and HB / HM = 0.609.

[0159] like Figure 6As shown, in the first embodiment of the present disclosure, the corresponding driving magnets 124 and coils 125 are arranged in a direction parallel to the optical axis OA, serving as the bottom driving mechanism of the rotating member 121, thereby controlling the rotation of the rotating member 121 in a bottom driving manner. However, the present disclosure is not limited to the configuration of the driving unit 12. For example, please refer to Fig.26 , is a schematic diagram illustrating the configuration of the driving unit of the variable aperture group according to another embodiment of the present disclosure. In another embodiment of the present disclosure, the variable aperture group 1f is similar to the aforementioned variable aperture group 1, and the same or similar reference numerals are used to represent the same components. The functions and effects of each component are the same as those described above, and will not be repeated here. Fig.26 As shown, the corresponding driving magnets 124f and coils 125f are arranged in a direction perpendicular to the optical axis OA, serving as a side driving mechanism of the rotating member 121f, thereby controlling the rotation of the rotating member 121f in a side driving manner.

[0160] like Figure 7 As shown, in the first embodiment of the present disclosure, the variable aperture group 1 is disposed on the object side of the lens 90 as a front aperture. However, the present disclosure is not limited to the configuration of the optical lens module 9. For example, please refer to Fig. 27 , is a cross-sectional schematic diagram illustrating another embodiment of the optical lens module according to the first embodiment of the present disclosure. In another embodiment of the present disclosure, the optical lens module 9g is similar to the aforementioned optical lens module 9, and the same or similar reference numerals are used to represent the same components. The functions and effects of each component are the same as those described above, and will not be repeated here. Fig. 27 As shown, the variable aperture group 1g is arranged between these lenses 90g to serve as a central aperture.

[0161] In the first embodiment of the present disclosure, the variable aperture assembly 1 provides the attraction force AF generated by the two first magnetic elements 14 and the two moving magnets 123 respectively to act between the rotating member 121 and the fixed member 120 through the attraction mechanism. The two first magnetic elements 14 are respectively located on one side of the two moving magnets 123 to interact with the two moving magnets 123 to generate magnetic force. However, the present disclosure is not limited to the variable aperture assembly 1 only maintaining the light hole in the expanded state through the attraction mechanism on one side. For example, please refer to Fig.28 , is a schematic diagram illustrating the configuration and function of the attraction mechanism of the variable aperture group according to another embodiment of the present disclosure. In another embodiment of the present disclosure, the variable aperture group (not separately labeled) is similar to the aforementioned variable aperture group 1, and the same or similar labels are used to represent the same components. The functions and effects of each component are the same as those described above, and will not be repeated here. First, Fig.28In the embodiment of the present invention, the two moving magnets 123n and the two driving magnets 124n are arranged in the same number as the aforementioned variable aperture group 1 and are also arranged alternately in the circumferential direction D1. The difference is that Fig.28 The number of the first magnetic elements 14n in the embodiment is four. Among them, two of the four first magnetic elements 14n are respectively arranged adjacent to the opposite sides of one of the moving magnets 123n in the circumferential direction D1, and the other two first magnetic elements 14n are respectively arranged adjacent to the opposite sides of another moving magnet 123n in the circumferential direction D1. Among them, two of the first magnetic elements 14n arranged symmetrically with the optical axis OA and the two moving magnets 123n together constitute a configuration of an attraction mechanism, and the other two first magnetic elements 14n arranged symmetrically with the optical axis OA and the two moving magnets 123n together constitute another configuration of an attraction mechanism. Through the configuration of the attraction mechanism on both sides mentioned above, an attraction force AF acting between the rotating part and the fixed part can be provided, and the attraction force AF includes the magnetic force of the rotating part acting on the first magnetic element 14n. In addition, the attraction mechanism on both sides provides a driving force acting on the rotatable blades, so that the light hole is maintained in an expanded state. In detail, through the magnetic force formed between the moving magnet 123n and the first magnetic element 14n, the moving magnet 123n is normally subjected to the attractive force AF of the first magnetic element 14n on both sides thereof, so that when the optical lens module is not powered on, the position of the rotating part relative to the fixed part can be maintained, thereby maintaining the light hole in an expanded state.

[0162] <Second Embodiment>

[0163] Please refer to Figure 29 to Figure 32 ,in Fig.29 A three-dimensional schematic diagram of a variable aperture assembly of an optical lens module according to a second embodiment of the present disclosure is shown. Fig.30 Draw Fig.29 Schematic diagram of the variable aperture group. Fig.31 Draw Fig.29 A partially exploded diagram of the variable aperture assembly after removing the upper cover, and Fig.32 Draw Fig.29 Schematic diagram of the working principle of the preload force mechanism of the variable aperture group.

[0164] The optical lens module (not separately labeled) includes at least one lens (not separately labeled) and a variable aperture group 2, and the variable aperture group 2 is arranged corresponding to the lens.

[0165] The variable aperture assembly 2 comprises an upper cover 20, a plurality of rotatable blades 21, a driving unit 22, a printed circuit board 23 and a preload mechanism. The rotatable blades 21 are rotatably arranged around the optical axis OA of the lens and together form a light hole 210, and the optical axis OA passes through the light hole 210.

[0166] The upper cover 20 is disposed on the driving part 22 and together forms an internal space (not separately labeled), and the rotatable blades 21 are disposed in the internal space. In addition, the printed circuit board 23 is disposed corresponding to the driving part 22 and is electrically connected. Specifically, the driving part 22 includes a fixing part 220, a rotating part 221, four bearing elements 222, two fixed magnets 226, two driving magnets 224 and two coils 225. Among them, the upper cover 20 is fixed to the fixing part 220, and the internal space for the rotatable blades 21 to be disposed is formed between the upper cover 20 and the fixing part 220. In addition, the printed circuit board 23 is attached to the fixing part 220.

[0167] The fixed member 220 is disposed correspondingly to the rotating member 221, and the rotating member 221 has a degree of freedom relative to the fixed member 220 that can rotate along a circumferential direction D1 that is perpendicular to and surrounds the optical axis OA. In addition, the rotating member 221 is disposed correspondingly to the rotatable blade 21, and the rotating member 221 is used to drive the rotatable blade 21 to rotate so as to adjust the aperture size of the light-through hole 210. It should be understood that the upper cover 20, the rotating member 221 and the fixed member 220 all have openings corresponding to the light-through hole 210 of the rotatable blade 21, so that light can pass through the openings and the light-through hole 210.

[0168] The bearing elements 222 are disposed between the rotating member 221 and the fixed member 220 and are disposed around the optical axis OA. The bearing elements 222 support the rotating member 221 so that the rotating member 221 can rotate relative to the fixed member 220 along the circumferential direction D1 .

[0169] The two fixed magnets 226 are disposed on the fixed member 220 and are respectively located on opposite sides of the fixed member 220. The two driving magnets 224 are disposed on the rotating member 221 and are respectively located on opposite sides of the rotating member 221. In this embodiment, the two fixed magnets 226 are respectively adjacent to and correspond to the two driving magnets 224 in the circumferential direction D1 perpendicular to and surrounding the optical axis OA.

[0170] The two coils 225 are disposed on the printed circuit board 23 and electrically connected to the printed circuit board 23 , and the two coils 225 are respectively disposed corresponding to the two driving magnets 224 to drive the rotating member 221 to rotate, thereby driving the rotatable blades 21 to rotate, so as to adjust the aperture size of the light hole 210 .

[0171] The preload mechanism provides an attractive force AF acting between the rotating member 221 and the fixed member 220, and the attractive force AF includes a magnetic force of the rotating member 221 acting on the fixed magnet 226. In addition, the preload mechanism provides a driving force acting on the rotatable blade 21, so that the light hole 210 is maintained in an expanded state. In this embodiment, the magnetic force of the rotating member 221 acts between the fixed magnet 226 and the driving magnet 224. In detail, Fig.31 and Fig.32 As shown, the driving magnet 224 arranged on the rotating part 221 corresponds to the fixed magnet 226 arranged on the fixed part 220. Through the magnetic force formed between the driving magnet 224 and the fixed magnet 226, the driving magnet 224 is normally subjected to the attractive force AF toward the fixed magnet 226, so that the rotating part 221 can be driven to rotate relative to the fixed part 220 when the optical lens module is not powered (for example, when no current passes through the coil 225), thereby providing a driving force to rotate the rotatable blade 21 in the direction in which the light hole 210 can be expanded.

[0172] The maximum viewing angle of the optical lens module is FOV, which satisfies the following conditions: 50 degrees ≤ FOV ≤ 105 degrees. The aperture value of the optical lens module is FNO, which satisfies the following conditions: 0.9 ≤ FNO ≤ 5.6.

[0173] like Fig.31 and Fig.32 As shown, in the second embodiment of the present disclosure, the side of the fixed magnet 226 adjacent to the driving magnet 224 has a first magnetic pole P1, and the side of the driving magnet 224 adjacent to the fixed magnet 226 has a second magnetic pole P2, and the polarity of the first magnetic pole P1 is different from the polarity of the second magnetic pole P2, so that an attractive force AF is formed between the driving magnet 224 and the fixed magnet 226. However, the present disclosure is not limited to the above-mentioned magnetic pole configuration direction of the fixed magnet 226 and the driving magnet 224. For example, please refer to Fig.33 and Fig.34 ,in Fig.33 A partially exploded schematic diagram of another implementation of the second embodiment of the present disclosure after removing the upper cover is shown; and Fig.34 Draw Fig.33 Schematic diagram of the effect of the preload mechanism of the variable aperture group. In another embodiment of the present disclosure, the variable aperture group 2h is similar to the aforementioned variable aperture group 2, and the same or similar reference numerals are used to represent the same elements. The functions and effects of each element are the same as those mentioned above and will not be repeated here. In this embodiment, the preload mechanism provides a repulsive force RF acting between the rotating member 221h and the fixed member 220h, and the repulsive force RF includes a magnetic force of the rotating member 221h acting on the fixed magnet 226h. In addition, the preload mechanism provides a driving force acting on the rotatable blade 21h to maintain the light hole 210h in an expanded state. In this embodiment, the magnetic force of the rotating member 221h acts between the fixed magnet 226h and the driving magnet 224h. In detail, as Fig.33 and Fig.34As shown, the side of the fixed magnet 226h adjacent to the driving magnet 224h has a first magnetic pole P1, and the side of the driving magnet 224h adjacent to the fixed magnet 226h also has a first magnetic pole P1 of the same polarity, so that a repulsive force RF is formed between the driving magnet 224h and the fixed magnet 226h. In this way, the driving magnet 224h is normally subjected to the repulsive force RF away from the fixed magnet 226h, so that the rotating member 221h can be driven to rotate relative to the fixed member 220h when the optical lens module is not powered (for example, when no current passes through the coil 225h), thereby providing a driving force to rotate the rotatable blade 21h in a direction that can make the light hole 210h in an expanded state.

[0174] In the second embodiment of the present disclosure, the magnetic force of the rotating member 221 acts between the fixed magnet 226 and the driving magnet 224. However, the magnetic force provided by the preload mechanism of the present disclosure is not limited to acting between the fixed magnet 226 and the driving magnet 224. For example, please refer to Fig.35 and Fig.36 ,in Fig.35 A partially exploded schematic diagram of a variable aperture assembly after removing the upper cover according to another embodiment of the present disclosure is shown; and Fig.36 Draw Fig.35 In another embodiment of the present disclosure, the variable aperture group 2j is similar to the aforementioned variable aperture group 2, and the same or similar reference numerals are used to represent the same components. The functions and effects of each component are the same as those described above, and will not be described in detail here. Fig.35 and Fig.36As shown, the driving part 22j further includes two moving magnets 223j, which are arranged on the rotating member 221j and are respectively located on the opposite sides of the rotating member 221j. In addition, the two moving magnets 223j and the two driving magnets 224j are staggered in the circumferential direction D1, and the two moving magnets 223j are respectively adjacent to each other in the circumferential direction D1 and correspond to the two fixed magnets 226j fixed on the fixed member 220j. The preload mechanism provides an attractive force AF acting between the rotating member 221j and the fixed member 220j, and the attractive force AF includes a magnetic force of the rotating member 221j acting on the fixed magnet 226j. In addition, the preload mechanism provides a driving force acting on the rotatable blade 21j, so that the light-through hole 210j is maintained in an expanded state. In this embodiment, the magnetic force of the rotating member 221j acts between the fixed magnet 226j and the moving magnet 223j. In detail, the moving magnet 223j arranged on the rotating part 221j corresponds to the fixed magnet 226j arranged on the fixed part 220j. Through the magnetic force formed between the moving magnet 223j and the fixed magnet 226j, the moving magnet 223j is normally subjected to the attractive force AF toward the fixed magnet 226j, thereby driving the rotating part 221j to rotate relative to the fixed part 220j when the optical lens module is not powered (for example, when no current passes through the coil 225j), thereby providing a driving force to rotate the rotatable blade 21j in a direction that can make the light hole 210j expanded.

[0175] like Fig.35 and Fig.36 In the embodiment shown, the side of the fixed magnet 226j adjacent to the moving magnet 223j has a first magnetic pole P1, and the side of the moving magnet 223j adjacent to the fixed magnet 226j has a second magnetic pole P2, and the polarity of the first magnetic pole P1 is different from the polarity of the second magnetic pole P2, so that an attractive force AF is formed between the moving magnet 223j and the fixed magnet 226j. However, the present disclosure is not limited to the above-mentioned magnetic pole configuration direction of the fixed magnet 226j and the moving magnet 223j. For example, please refer to Fig.37 and Fig.38 ,in Fig.37 A partially exploded schematic diagram of a variable aperture assembly after removing the upper cover according to another embodiment of the present disclosure is shown; and Fig.38 Draw Fig.37 In another embodiment of the present disclosure, the variable aperture group 2k is similar to the aforementioned variable aperture group 2j, and the same or similar reference numerals are used to represent the same components. The functions and effects of each component are the same as those described above, and will not be described in detail here. Fig.37 and Fig.38As shown, the two moving magnets 223k and the two driving magnets 224k are arranged alternately in the circumferential direction D1, and the two moving magnets 223k are adjacent to and correspond to the two fixed magnets 226k fixed on the fixed member 220k in the circumferential direction D1. The fixed magnet 226k has a first magnetic pole P1 on one side adjacent to the moving magnet 223k, and the moving magnet 223k also has a first magnetic pole P1 with the same polarity on one side adjacent to the fixed magnet 226k, so that a repulsive force RF is formed between the moving magnet 223k and the fixed magnet 226k. In this way, the moving magnet 223k is normally subjected to the repulsive force RF away from the fixed magnet 226k, so that the rotating member 221k can be driven to rotate relative to the fixed member 220k when the optical lens module is not powered (for example, when no current passes through the coil 225k), thereby providing a driving force to rotate the rotatable blade 21k in a direction that can make the light hole 210k in an expanded state.

[0176] In the aforementioned embodiments, the magnetic force of the rotating member acts between the fixed magnet and the driving magnet, or between the fixed magnet and the moving magnet. However, the magnetic force provided by the preload mechanism disclosed herein is not limited to acting between the aforementioned elements. For example, please refer to Fig.39 and Fig.40 ,in Fig.39 A partially exploded schematic diagram of a variable aperture assembly after removing the upper cover according to another embodiment of the present disclosure is shown; and Fig.40 Draw Fig.39 In another embodiment of the present disclosure, the variable aperture group 2m is similar to the aforementioned variable aperture group 2, and the same or similar reference numerals are used to represent the same components. The functions and effects of each component are the same as those described above, and will not be described in detail here. Fig.39 and Fig.40As shown, the variable aperture group 2m further includes two third magnetic elements 26m, which are fixed to (for example, embedded in) the rotating member 221m of the driving part 22m and are respectively located on opposite sides of the rotating member 221m. In addition, the two third magnetic elements 26m and the two driving magnets 224m disposed on the rotating member 221m are staggered in the circumferential direction D1, and the two third magnetic elements 26m are respectively adjacent to and correspond to the two fixed magnets 226m fixed on the fixed member 220m in the circumferential direction D1. The preload force mechanism provides an attractive force AF acting between the rotating member 221m and the fixed member 220m, and the attractive force AF includes a magnetic force of the rotating member 221m acting on the fixed magnet 226m. In addition, the preload force mechanism provides a driving force acting on the rotatable blade 21m to maintain the light hole 210m in an expanded state. In this embodiment, the magnetic force of the rotating member 221m acts between the fixed magnet 226m and the third magnetic element 26m. Specifically, the third magnetic element 26m disposed on the rotating member 221m corresponds to the fixed magnet 226m disposed on the fixed member 220m, and the third magnetic element 26m is normally subjected to the attraction force AF toward the fixed magnet 226m through the magnetic force formed between the third magnetic element 26m and the fixed magnet 226m, so that the rotating member 221m can be driven to rotate relative to the fixed member 220m when the optical lens module is not powered (for example, when no current passes through the coil 225m), thereby providing a driving force to rotate the rotatable blade 21m in a direction that can make the light hole 210m in an expanded state.

[0177] In the second embodiment of the present disclosure, the number of fixed magnets 226 is two, and they are respectively located on one side of the two driving magnets 224 to interact with the two driving magnets 224 to generate attraction. However, the present disclosure is not limited to the number of fixed magnets 226 and the magnetic force between the fixed magnets 226 and the driving magnets 224 as attraction. For example, please refer to Fig.41 , is a schematic diagram illustrating the configuration and function of the preload mechanism of the variable aperture assembly according to another embodiment of the present disclosure. In another embodiment of the present disclosure, the variable aperture assembly (not separately labeled) is similar to the aforementioned variable aperture assembly 2, and the same or similar labels are used to represent the same components. The functions and effects of each component are the same as those described above, and will not be repeated here. Fig.41As shown, the number of fixed magnets 226p is four, and two of the four fixed magnets 226p are respectively disposed adjacent to one of the two driving magnets 224p on the circumferential direction D1, while the other two fixed magnets 226p are respectively disposed adjacent to the other driving magnet 224p on the circumferential direction D1. Through the configuration of the above-mentioned preload mechanism, a repulsive force RF acting between the rotating member and the fixed member can be provided, and the repulsive force RF includes the magnetic force of the rotating member acting on the fixed magnet 226p. In addition, the preload mechanism provides a driving force acting on the rotatable blades to maintain the light hole in an expanded state. In detail, by the magnetic force formed between the driving magnet 224p and the fixed magnet 226p, the driving magnet 224p is normally subjected to the repulsive force RF of the fixed magnets 226p away from its two sides, so that when the optical lens module is not powered on, the position of the rotating part relative to the fixed part can be maintained, thereby maintaining the light hole in an expanded state. In addition, by changing the magnetic pole configuration of the driving magnet 224p and the fixed magnet 226p, the magnetic force between the driving magnet 224p and the fixed magnet 226p can also be an attractive force, or the magnetic force between the driving magnet 224p and the fixed magnet 226p can also be an attractive force on one side of the driving magnet 224p and a repulsive force on the other side, and the present disclosure is not limited to this.

[0178] like Fig.33 and Fig.34 In the embodiment shown, the variable aperture assembly 2h provides a repulsive force RF generated between the fixed magnet 226h and the driving magnet 224h to act between the rotating member 221h and the fixed member 220h through a preload mechanism. The two fixed magnets 226h are respectively located on one side of the two driving magnets 224h to interact with the two driving magnets 224h to generate magnetic force. However, the present disclosure is not limited to the above-mentioned variable aperture assembly 2h maintaining the light hole in an expanded state only through a preload mechanism. For example, please refer to Fig.42 , is a schematic diagram illustrating the configuration and function of the attraction mechanism and preload mechanism of the variable aperture assembly according to another embodiment of the present disclosure. In another embodiment of the present disclosure, the variable aperture assembly (not separately labeled) is similar to the aforementioned variable aperture assembly 2h, and the same or similar labels are used to represent the same components. The functions and effects of each component are the same as those described above, and will not be repeated here. Fig.42As shown, the variable aperture group further includes two first magnetic elements 24q fixed to the fixing member, and one of the first magnetic elements 24q and one of the two fixed magnets 226q are respectively arranged adjacent to the opposite sides of one of the two driving magnets 224q in the circumferential direction D1, while the other first magnetic element 24q and the other fixed magnet 226q are respectively arranged adjacent to the opposite sides of the other driving magnet 224q in the circumferential direction D1. The two first magnetic elements 24q, the two fixed magnets 226q and the two driving magnets 224q are arranged symmetrically with the optical axis OA as the axis. The two first magnetic elements 24q and the two driving magnets 224q together constitute the configuration of the attraction mechanism, and the two fixed magnets 226q and the two driving magnets 224q together constitute the configuration of the preload force mechanism. By configuring the above-mentioned attraction mechanism and preload mechanism, an attraction force AF and a repulsion force RF acting between the rotating member and the fixed member can be provided, wherein the attraction force AF includes the magnetic force of the rotating member acting on the first magnetic element 24q, and the repulsion force RF includes the magnetic force of the rotating member acting on the fixed magnet 226q. In addition, the attraction mechanism and the preload mechanism provide a driving force acting on the rotatable blades to maintain the light-through hole in an expanded state. In detail, by the magnetic force formed between the driving magnet 224q and the first magnetic element 24q, the driving magnet 224q is normally subjected to the attraction force AF toward the first magnetic element 24q, and by the magnetic force formed between the driving magnet 224q and the fixed magnet 226q, the driving magnet 224q is normally subjected to the repulsion force RF away from the fixed magnet 226q, so that the rotating member can be driven to rotate relative to the fixed member when the optical lens module is not powered on, thereby providing a driving force to rotate the rotatable blades in a direction that can make the light-through hole in an expanded state. The attractive force AF and the repulsive force RF exerted on the driving magnet 224q point to the same direction in the circumferential direction D1, but the present disclosure is not limited thereto.

[0179] <Third Embodiment>

[0180] Please refer to Figure 43 to Figure 47 ,in Fig.43 A three-dimensional schematic diagram of a variable aperture assembly of an optical lens module according to a third embodiment of the present disclosure is shown. Fig.44 Draw Fig.43 Schematic diagram of the variable aperture group. Fig.45 Draw Fig.44 A schematic diagram of the relative position relationship of the first magnetic element buried in the fixing member, Fig.46 Draw Fig.43 A partially exploded diagram of the variable aperture assembly after removing the upper cover, and Fig.47 Draw Fig.43 Schematic diagram of the working principle of the preload force mechanism of the variable aperture group.

[0181] The optical lens module (not separately labeled) includes at least one lens (not separately labeled) and a variable aperture group 3, and the variable aperture group 3 is arranged corresponding to the lens.

[0182] The variable aperture assembly 3 includes an upper cover 30, a plurality of rotatable blades 31, a driving unit 32, a printed circuit board 33, two first magnetic elements 34, and a preload mechanism. The rotatable blades 31 are rotatably arranged around the optical axis OA of the lens and together form a light hole 310, and the optical axis OA passes through the light hole 310.

[0183] The upper cover 30 is disposed on the driving part 32 and together forms an internal space (not separately labeled), and the rotatable blades 31 are disposed in the internal space. In addition, the printed circuit board 33 is disposed corresponding to the driving part 32 and is electrically connected. Specifically, the driving part 32 includes a fixing part 320, a rotating part 321, four bearing elements 322, two driving magnets 324 and two coils 325. Among them, the upper cover 30 is fixed to the fixing part 320, and the internal space for the rotatable blades 31 to be disposed is formed between the upper cover 30 and the fixing part 320. In addition, the printed circuit board 33 is attached to the fixing part 320.

[0184] The fixed member 320 is disposed correspondingly to the rotating member 321, and the rotating member 321 has a degree of freedom relative to the fixed member 320 to rotate along a circumferential direction D1 perpendicular to and around the optical axis OA. In addition, the rotating member 321 is disposed correspondingly to the rotatable blade 31, and the rotating member 321 is used to drive the rotatable blade 31 to rotate so as to adjust the aperture size of the light-through hole 310. It should be understood that the upper cover 30, the rotating member 321 and the fixed member 320 all have openings corresponding to the light-through hole 310 of the rotatable blade 31, so that light can pass through the openings and the light-through hole 310.

[0185] The bearing elements 322 are disposed between the rotating member 321 and the fixed member 320 and are disposed around the optical axis OA. The bearing elements 322 support the rotating member 321 so that the rotating member 321 can rotate relative to the fixed member 320 along the circumferential direction D1 .

[0186] The two driving magnets 324 are disposed on the rotating member 321 and are located at opposite sides of the rotating member 321 .

[0187] The two coils 325 are disposed on the printed circuit board 33 and electrically connected to the printed circuit board 33 , and the two coils 325 are respectively disposed corresponding to the two driving magnets 324 to drive the rotating member 321 to rotate, thereby driving the rotatable blades 31 to rotate, so as to adjust the aperture size of the light hole 310 .

[0188] The two first magnetic elements 34 are fixed to the fixed member 320, and each of the first magnetic elements 34 includes an extension portion 340 and a base portion 341 connected to each other, wherein the extension portion 340 is arranged in a direction parallel to the optical axis OA, the base portion 341 is arranged in a direction perpendicular to the optical axis OA, and the connection between the base portion 341 and the extension portion 340 includes a turning point (not separately labeled). The first magnetic element 34 is used to interact with the driving magnet 324 arranged on the rotating member 321 to keep the light hole 310 in an expanded state (detailed operation will be described later). Specifically, the extension portion 340 of the first magnetic element 34 and the driving magnet 324 are adjacent and correspondingly arranged in the circumferential direction D1, and the base portion 341 of the first magnetic element 34 and the driving magnet 324 are correspondingly arranged in a direction parallel to the optical axis OA, so that the extension portion 340 and the driving magnet 324 can interact with each other to maintain the light hole 310 in an expanded state, and a preload force can be formed between the base portion 341 and the driving magnet 324 in a direction parallel to the optical axis OA to maintain the actuation of the rotating member 321 and the fixing member 320. In this embodiment, the first magnetic element 34 is embedded in the fixing member 320.

[0189] The attraction mechanism provides an attraction force AF acting between the rotating member 321 and the fixed member 320, and the attraction force AF includes a magnetic force of the rotating member 321 acting on the first magnetic element 34. In addition, the attraction mechanism provides a driving force acting on the rotatable blade 31, so that the light hole 310 is maintained in an extended state. In this embodiment, the magnetic force of the rotating member 321 acts between the extension portion 340 of the first magnetic element 34 and the driving magnet 324. In detail, as Fig.46 and Fig.47 As shown, the driving magnet 324 arranged on the rotating member 321 corresponds to the first magnetic element 34 arranged on the fixed member 320. Through the magnetic force formed between the driving magnet 324 and the extension portion 340, the driving magnet 324 is normally subjected to the attractive force AF toward the extension portion 340, so that the rotating member 321 can be driven to rotate relative to the fixed member 320 when the optical lens module is not powered (for example, when no current passes through the coil 325), thereby providing a driving force to rotate the rotatable blade 31 in a direction that can make the light hole 310 expand.

[0190] It is particularly noted that the extension portion 340 of the first magnetic element 34 in this embodiment (the third embodiment) can have the same function and effect as the first magnetic element 14 of the first embodiment, and the base portion 341 of the first magnetic element 34 in the third embodiment can have the same function and effect as the second magnetic element 15 of the first embodiment, so that the first magnetic element 34 of the third embodiment can be regarded as being formed integrally by the first magnetic element 14 and the second magnetic element 15 of the first embodiment.

[0191] The maximum viewing angle of the optical lens module is FOV, which satisfies the following conditions: 50 degrees ≤ FOV ≤ 105 degrees. The aperture value of the optical lens module is FNO, which satisfies the following conditions: 0.9 ≤ FNO ≤ 5.6.

[0192] <Fourth Embodiment>

[0193] Please refer to Figures 48 to 52 ,in Fig.48 A three-dimensional schematic diagram of a variable aperture assembly of an optical lens module according to a fourth embodiment of the present disclosure is shown. Fig.49 Draw Fig.48 Schematic diagram of the variable aperture group. Fig.50 Draw Fig.49 A schematic diagram of the relative position relationship of the second magnetic element buried in the fixing member, Fig.51 Draw Fig.48 A partially exploded schematic diagram of the variable aperture group of Fig.52 Draw Fig.48 Schematic diagram of the action of the attraction mechanism of the variable aperture group.

[0194] The optical lens module (not labeled) includes at least one lens (not labeled) and a variable aperture group 4, and the variable aperture group 4 is disposed corresponding to the lens.

[0195] The variable aperture assembly 4 comprises an upper cover 40, a plurality of rotatable blades 41, a driving unit 42, a printed circuit board 43, two second magnetic elements 45 and an attraction mechanism. The rotatable blades 41 are rotatably arranged around the optical axis OA of the lens and together form a light hole 410, and the optical axis OA passes through the light hole 410.

[0196] The upper cover 40 is disposed on the driving part 42 and together forms an internal space (not separately labeled), and the rotatable blades 41 are disposed in the internal space. In addition, the printed circuit board 43 is disposed corresponding to the driving part 42 and is electrically connected. Specifically, the driving part 42 includes a fixed part 420, a rotating part 421, four bearing elements 422, two moving magnets 423, two driving magnets 424 and two coils 425. Among them, the upper cover 40 is fixed to the fixed part 420, and the internal space for the rotatable blades 41 to be disposed is formed between the upper cover 40 and the fixed part 420. In addition, the printed circuit board 43 is attached to the fixed part 420.

[0197] The fixed member 420 is disposed correspondingly to the rotating member 421, and the rotating member 421 has a degree of freedom relative to the fixed member 420 to rotate along a circumferential direction D1 perpendicular to and around the optical axis OA. In addition, the rotating member 421 is disposed correspondingly to the rotatable blade 41, and the rotating member 421 is used to drive the rotatable blade 41 to rotate so as to adjust the aperture size of the light-through hole 410. It should be understood that the upper cover 40, the rotating member 421 and the fixed member 420 all have openings corresponding to the light-through hole 410 of the rotatable blade 41, so as to allow light to pass through the openings and the light-through hole 410.

[0198] The bearing elements 422 are disposed between the rotating member 421 and the fixed member 420 and are disposed around the optical axis OA. The bearing elements 422 support the rotating member 421 so that the rotating member 421 can rotate relative to the fixed member 420 along the circumferential direction D1 .

[0199] The two moving magnets 423 are disposed on the rotating member 421 and are respectively located on opposite sides of the rotating member 421. The two driving magnets 424 are disposed on the rotating member 421 and are respectively located on opposite sides of the rotating member 421. In this embodiment, the two moving magnets 423 and the two driving magnets 424 are staggered in the circumferential direction D1 perpendicular to and surrounding the optical axis OA.

[0200] The two coils 425 are disposed on the printed circuit board 43 and electrically connected to the printed circuit board 43 , and the two coils 425 are respectively disposed corresponding to the two driving magnets 424 to drive the rotating member 421 to rotate, thereby driving the rotatable blade 41 to rotate, so as to adjust the aperture size of the light hole 410 .

[0201] In this embodiment, the upper cover 40 is a magnetic element (which has the same or similar functions and effects as the first magnetic element described above), and the inner wall of the upper cover 40 has two protrusions 400. Fig.51 and Fig.52 As shown, the two protrusions 400 are adjacent to and corresponding to the two moving magnets 423 disposed on the rotating member 421 in the circumferential direction D1, and the protrusions 400 are used to interact with the moving magnets 423 to maintain the light hole 410 in an expanded state (detailed operation will be described later).

[0202] The two second magnetic elements 45 are fixed to the fixing member 420, and the two second magnetic elements 45 are respectively arranged corresponding to the two driving magnets 424, so as to form a preload force between the second magnetic elements 45 and the driving magnets 424 to maintain the actuation of the rotating member 421 and the fixing member 420. In this embodiment, the second magnetic element 45 is embedded in the fixing member 420.

[0203] The attraction mechanism provides an attraction force AF acting between the rotating member 421 and the fixed member 420, and the attraction force AF includes a magnetic force of the rotating member 421 acting on the protrusion 400 of the upper cover 40. In addition, the attraction mechanism provides a driving force acting on the rotatable blade 41 to maintain the light hole 410 in an expanded state. In this embodiment, the magnetic force of the rotating member 421 acts between the protrusion 400 of the upper cover 40 and the moving magnet 423. In detail, as Fig.51 and Fig.52 As shown, the moving magnet 423 arranged on the rotating member 421 corresponds to the protrusion 400 of the upper cover member 40. Through the magnetic force formed between the moving magnet 423 and the protrusion 400, the moving magnet 423 is normally subjected to the attractive force AF toward the protrusion 400, so that the rotating member 421 can be driven to rotate relative to the upper cover member 40 and the fixed member 420 when the optical lens module is not powered (for example, when no current passes through the coil 425), thereby providing a driving force to rotate the rotatable blade 41 in a direction that can make the light hole 410 expand.

[0204] The maximum viewing angle of the optical lens module is FOV, which satisfies the following conditions: 50 degrees ≤ FOV ≤ 105 degrees. The aperture value of the optical lens module is FNO, which satisfies the following conditions: 0.9 ≤ FNO ≤ 5.6.

[0205] <Fifth Embodiment>

[0206] Please refer to Figure 53 to Figure 57 ,in Fig.53 A three-dimensional schematic diagram of a variable aperture assembly of an optical lens module according to a fifth embodiment of the present disclosure is shown. Fig.54 Draw Fig.53 Schematic diagram of the variable aperture group. Fig.55 Draw Fig.54 A schematic diagram of the relative position relationship of the second magnetic element buried in the fixing member, Fig.56 Draw Fig.53 A partially exploded schematic diagram of the variable aperture group of Fig.57 Draw Fig.53 Schematic diagram of the action of the attraction mechanism of the variable aperture group.

[0207] The optical lens module (not separately labeled) includes at least one lens (not separately labeled) and a variable aperture group 5, and the variable aperture group 5 is disposed corresponding to the lens.

[0208] The variable aperture assembly 5 comprises an upper cover 50, a plurality of rotatable blades 51, a driving unit 52, a printed circuit board 53, two second magnetic elements 55 and an attraction mechanism. The rotatable blades 51 are rotatably arranged around the optical axis OA of the lens and together form a light hole 510, and the optical axis OA passes through the light hole 510.

[0209] The upper cover 50 is disposed on the driving part 52 and together forms an internal space (not separately labeled), and the rotatable blades 51 are disposed in the internal space. In addition, the printed circuit board 53 is disposed corresponding to the driving part 52 and is electrically connected. Specifically, the driving part 52 includes a fixing part 520, a rotating part 521, four bearing elements 522, two driving magnets 524 and two coils 525. Among them, the upper cover 50 is fixed to the fixing part 520, and the internal space for the rotatable blades 51 to be disposed is formed between the upper cover 50 and the fixing part 520. In addition, the printed circuit board 53 is attached to the fixing part 520.

[0210] The fixed member 520 is disposed correspondingly to the rotating member 521, and the rotating member 521 has a degree of freedom to rotate along a circumferential direction D1 perpendicular to and around the optical axis OA relative to the fixed member 520. In addition, the rotating member 521 is disposed correspondingly to the rotatable blade 51, and the rotating member 521 is used to drive the rotatable blade 51 to rotate so as to adjust the aperture size of the light-through hole 510. It should be understood that the upper cover 50, the rotating member 521 and the fixed member 520 all have openings corresponding to the light-through hole 510 of the rotatable blade 51, so as to allow light to pass through the openings and the light-through hole 510.

[0211] The bearing elements 522 are disposed between the rotating member 521 and the fixed member 520 and are disposed around the optical axis OA. The bearing elements 522 support the rotating member 521 so that the rotating member 521 can rotate relative to the fixed member 520 along the circumferential direction D1.

[0212] The two driving magnets 524 are disposed on the rotating member 521 and are located at opposite sides of the rotating member 521 .

[0213] The two coils 525 are disposed on the printed circuit board 53 and electrically connected to the printed circuit board 53 , and the two coils 525 are respectively disposed corresponding to the two driving magnets 524 to drive the rotating member 521 to rotate, thereby driving the rotatable blades 51 to rotate, so as to adjust the aperture size of the light hole 510 .

[0214] In this embodiment, the upper cover 50 is a magnetic element (which has the same or similar functions and effects as the first magnetic element described above), and the inner wall of the upper cover 50 has two protrusions 500. Fig.56 and Fig.57 As shown, the two protrusions 500 are adjacent to and corresponding to the two driving magnets 524 disposed on the rotating member 521 in the circumferential direction D1, and the protrusions 500 are used to interact with the driving magnets 524 to maintain the light hole 510 in an expanded state (detailed operation will be described later).

[0215] The two second magnetic elements 55 are fixed to the fixing member 520, and the two second magnetic elements 55 are respectively disposed corresponding to the two driving magnets 524, so that a preload force is formed between the second magnetic elements 55 and the driving magnets 524 to maintain the actuation of the rotating member 521 and the fixing member 520. In this embodiment, the second magnetic element 55 is embedded in the fixing member 520.

[0216] The attraction mechanism provides an attraction force AF acting between the rotating member 521 and the fixed member 520, and the attraction force AF includes a magnetic force of the rotating member 521 acting on the protrusion 500 of the upper cover 50. In addition, the attraction mechanism provides a driving force acting on the rotatable blade 51, so that the light hole 510 is maintained in an expanded state. In this embodiment, the magnetic force of the rotating member 521 acts between the protrusion 500 of the upper cover 50 and the driving magnet 524. In detail, as Fig.56 and Fig.57 As shown, the driving magnet 524 arranged on the rotating member 521 corresponds to the protrusion 500 of the upper cover member 50. Through the magnetic force formed between the driving magnet 524 and the protrusion 500, the driving magnet 524 is normally subjected to the attractive force AF toward the protrusion 500, so that the rotating member 521 can be driven to rotate relative to the upper cover member 50 and the fixed member 520 when the optical lens module is not powered (for example, when no current passes through the coil 525), thereby providing a driving force to rotate the rotatable blade 51 in a direction that can make the light hole 510 expand.

[0217] The maximum viewing angle of the optical lens module is FOV, which satisfies the following conditions: 50 degrees ≤ FOV ≤ 105 degrees. The aperture value of the optical lens module is FNO, which satisfies the following conditions: 0.9 ≤ FNO ≤ 5.6.

[0218] <Sixth Embodiment>

[0219] Please refer to Fig.58 and Fig.59 ,in Fig.58 A schematic three-dimensional diagram of one side of an electronic device according to a sixth embodiment of the present disclosure is shown, and Fig.59 Draw Fig.58 A three-dimensional schematic diagram of the other side of the electronic device.

[0220] In this embodiment, the electronic device 6 is a smart phone and includes a plurality of camera modules, a flash module 61 , a focus auxiliary module 62 , an image signal processor 63 , a display module (user interface) 64 and an image software processor (not shown).

[0221] These camera modules include an ultra-wide-angle camera module 60a, a high-pixel camera module 60b, a telephoto camera module 60c, and a telephoto camera module 60d. The camera module 60d, for example, includes the optical lens module and an electronic photosensitive element (not shown) of the first embodiment, and the electronic photosensitive element is disposed on the imaging surface of the optical lens module. The camera modules 60a, 60b, and 60c may also include the optical lens module of the present disclosure, but the present disclosure is not limited thereto.

[0222] The ultra-wide-angle camera module 60a has a function of accommodating multiple views. Fig.60 FIG. 6 is a schematic diagram showing an image captured by the ultra-wide-angle camera module 60 a .

[0223] The high-pixel camera module 60b has the functions of high resolution and low distortion. The high-pixel camera module 60b can further capture Fig.60 part of the image. Fig.61 FIG. 6 is a schematic diagram showing the process of capturing an image using a high-pixel camera module 60 b .

[0224] The telephoto camera modules 60c and 60d have a high magnification function. The telephoto camera modules 60c and 60d can further capture Fig.61 part of the image. Fig.62 A schematic diagram of capturing images with telephoto camera modules 60c and 60d is shown. The maximum field of view (FOV) of the camera module corresponds to Fig.62 perspective.

[0225] When the user shoots the subject, the electronic device 6 uses the ultra-wide-angle camera module 60a, the high-pixel camera module 60b, the telephoto camera module 60c or the telephoto camera module 60d to focus and capture the image, activates the flash module 61 for fill light, and uses the object distance information of the subject provided by the focus auxiliary module 62 for rapid focus, and the image signal processor 63 performs image optimization processing to further improve the image quality produced by the camera module, while providing a zoom function. The focus auxiliary module 62 can use an infrared or laser focus auxiliary system to achieve rapid focus. The display module 64 can use a touch screen with a touch function, and the shooting angle can be adjusted manually, so different camera modules are switched, and the image software processor cooperates with the diverse functions to shoot and process the image (or a physical shooting button can be used for shooting). The image processed by the image software processor can be displayed on the display module 64.

[0226] <Seventh Embodiment>

[0227] Please refer to Fig.63 , is a three-dimensional schematic diagram illustrating one side of an electronic device according to the seventh embodiment of the present disclosure.

[0228] In this embodiment, the electronic device 7 is a smart phone. The electronic device 7 includes a camera module 70, a camera module 70a, a camera module 70b, a camera module 70c, a camera module 70d, a camera module 70e, a camera module 70f, a camera module 70g, a camera module 70h, a flash module 71, an image signal processor, a display device, and an image software processor (not shown). The camera module 70, the camera module 70a, the camera module 70b, the camera module 70c, the camera module 70d, the camera module 70e, the camera module 70f, the camera module 70g, and the camera module 70h are all arranged on the same side of the electronic device 7, and the display device is arranged on the other side of the electronic device 7. Among them, the camera module 70c, for example, includes the optical lens module and the electronic photosensitive element (not shown) of the first embodiment, and the electronic photosensitive element is arranged on the imaging surface of the optical lens module. The camera modules 70, 70a, 70b, 70d, 70e, 70f, 70g, and 70h may also include the optical lens module of the present disclosure, but the present disclosure is not limited thereto.

[0229] The camera module 70 is an ultra-wide-angle camera module, the camera module 70a is a telephoto camera module, the camera module 70b is a telephoto camera module, the camera module 70c is a telephoto camera module, the camera module 70d is a telephoto camera module, the camera module 70e is a wide-angle camera module, the camera module 70f is a wide-angle camera module, the camera module 70g is an ultra-wide-angle camera module, and the camera module 70h is a Time of Flight (ToF) camera module. The camera modules 70, 70a, 70b, 70c, 70d, 70e, 70f and 70g of the present embodiment have different viewing angles, so that the electronic device 7 can provide different magnifications to achieve an optical zoom shooting effect. In addition, the camera modules 70a and 70b are telephoto camera modules with light deflection element configurations. In addition, the camera module 70h can obtain depth information of the image. The electronic device 7 includes a plurality of camera modules 70, 70a, 70b, 70c, 70d, 70e, 70f, 70g, 70h as an example, but the number and configuration of the camera modules are not intended to limit the present disclosure. When the user takes a photo of an object, the electronic device 7 uses the camera module 70, the camera module 70a, the camera module 70b, the camera module 70c, the camera module 70d, the camera module 70e, the camera module 70f, the camera module 70g or the camera module 70h to focus light and take an image, activates the flash module 71 for fill light, and performs subsequent processing in a manner similar to the aforementioned embodiment, which will not be described in detail herein.

[0230] <Eighth Embodiment>

[0231] Please refer to Figure 64 to Figure 66 ,in Fig.64 FIG. 1 is a three-dimensional schematic diagram of an electronic device according to an eighth embodiment of the present disclosure. Fig.65 Draw Fig.64 A schematic side view of an electronic device, and Fig.66 Draw Fig.64 A schematic top view of an electronic device.

[0232] In this embodiment, the electronic device 8 is a car and includes a plurality of car camera modules 80, and these camera modules 80 include the optical lens modules disclosed herein, which can be applied to a panoramic driving assistance system, a driving recorder, and a reverse imaging device, for example.

[0233] like Fig.64 As shown, the camera module 80 can be set around the car body, for example, to capture images around the car, which helps to identify the road conditions outside the car, so as to realize the automatic assisted driving function. In addition, the images can be combined into a panoramic picture through the image software processor to provide the driver with images of the blind spots, so that the driver can control the situation around the car body, which is convenient for driving and parking.

[0234] like Fig.65 As shown, the camera module 80 can be, for example, disposed below the left and right rearview mirrors, respectively, wherein the viewing angle of the camera module 80 can be 40 degrees to 90 degrees, for capturing image information within the left and right lanes.

[0235] like Fig.66 As shown, the camera module 80 can also be arranged, for example, below the left and right rearview mirrors and inside the front and rear windshields, so as to help the driver obtain external space information outside the cockpit, provide more viewing angles to reduce blind spots, and improve driving safety.

[0236] The variable aperture group, optical lens module and camera module disclosed in the present invention are not limited to applications in smart phones, panoramic driving assistance systems, driving recorders and reversing imaging devices. The variable aperture group, optical lens module and camera module can be applied to a variety of mobile focus systems according to needs, and have the characteristics of excellent aberration correction and good imaging quality. For example, the variable aperture group, optical lens module and camera module can be widely used in electronic devices such as three-dimensional (3D) image capture, digital cameras, mobile devices, tablet computers, smart TVs, network monitoring equipment, multi-lens devices, identification systems, somatosensory game consoles and wearable devices. The aforementioned electronic device is only an exemplary example of the actual application of the present invention, and does not limit the scope of application of the variable aperture group, optical lens module and camera module disclosed in the present invention.

[0237] Although the present disclosure is disclosed in the above embodiments, these embodiments are not intended to limit the present disclosure. Any changes and modifications made without departing from the spirit and scope of the present disclosure are within the scope of patent protection of the present disclosure. Please refer to the attached claims for the scope of protection defined by the present disclosure.

Claims

1. An optical lens module, characterized in that: Include: at least one lens; and a variable aperture group, arranged corresponding to the at least one lens, and the variable aperture group comprises: A plurality of rotatable blades are rotatably arranged around an optical axis of the at least one lens and together form a light-through hole, and the optical axis passes through the light-through hole; A driving unit, comprising: a rotating member, arranged corresponding to the rotatable blades, and used to drive the rotatable blades to rotate so as to adjust the aperture size of the light-through hole; a fixed member, arranged corresponding to the rotating member, and the rotating member has a degree of freedom relative to the fixed member, which can rotate along a circumferential direction perpendicular to and around the optical axis; At least one driving magnet, disposed on the rotating member; as well as at least one coil, arranged corresponding to the at least one driving magnet, to drive the rotating member to rotate; as well as an attraction mechanism, providing an attraction force acting between the rotating member and the fixed member, wherein the attraction force comprises a magnetic force of the rotating member acting on a first magnetic element fixed to the fixed member; The attraction mechanism provides a driving force acting on the rotatable blades to keep the light-through hole in an expanded state.

2. The optical lens module according to claim 1, characterized in that: The first magnetic element comprises: an extension portion, arranged in a direction parallel to the optical axis; and A base portion is connected to the extension portion and is arranged along a direction perpendicular to the optical axis, and a connection between the base portion and the extension portion includes a turning point.

3. The optical lens module according to claim 2, characterized in that: The extension portion includes an elastic section, the height of the extension portion is HE, and the height of the elastic section is HS, which satisfies the following conditions: 0≤HS / HE≤1.

4. The optical lens module according to claim 2, characterized in that: The first magnetic element further comprises: A buffer portion is disposed on the extending portion.

5. The optical lens module according to claim 2, characterized in that: The variable aperture group further comprises: At least one second magnetic element is disposed corresponding to the at least one driving magnet.

6. The optical lens module according to claim 5, characterized in that: The first magnetic element and the at least one second magnetic element are integrally formed.

7. The optical lens module according to claim 1, characterized in that: The driving unit further comprises: At least two bearing elements are arranged around the optical axis, the at least two bearing elements are arranged between the rotating member and the fixed member, and the at least two bearing elements support the rotating member so that the rotating member can rotate along the circumferential direction relative to the fixed member.

8. The optical lens module according to claim 7, characterized in that: The height of the first magnetic element is HM, and the height of each of the at least two bearing elements is HB, which satisfies the following conditions: 0.1≤HB / HM≤1.

9. The optical lens module according to claim 1, characterized in that: The variable aperture group further comprises: An upper cover is fixed to the fixing member, an inner space is formed between the upper cover and the fixing member, and the rotatable blades are arranged in the inner space.

10. The optical lens module according to claim 9, characterized in that: The upper cover is the first magnetic element.

11. The optical lens module according to claim 1, characterized in that: The at least one driving magnet and the at least one coil are arranged correspondingly in a direction perpendicular to the optical axis.

12. The optical lens module according to claim 1, characterized in that: The at least one driving magnet and the at least one coil are correspondingly arranged in a direction parallel to the optical axis.

13. The optical lens module according to claim 1, characterized in that: The magnetic force of the rotating member acts between the first magnetic element and the at least one driving magnet.

14. The optical lens module according to claim 1, characterized in that: The magnetic force of the rotating member acts between the first magnetic element and a moving magnet arranged on the rotating member.

15. A camera module, characterized in that: Include: The optical lens module according to claim 1; and An electronic photosensitive element is arranged on an imaging surface of the optical lens module.

16. An electronic device, characterized in that: Include: The camera module according to claim 15.

17. An optical lens module, characterized in that: Include: at least one lens; and a variable aperture group, arranged corresponding to the at least one lens, and the variable aperture group comprises: A plurality of rotatable blades are rotatably arranged around an optical axis of the at least one lens and together form a light-through hole, and the optical axis passes through the light-through hole; A driving unit, comprising: a rotating member, arranged corresponding to the rotatable blades, and used to drive the rotatable blades to rotate so as to adjust the aperture size of the light-through hole; a fixed member, arranged corresponding to the rotating member, and the rotating member has a degree of freedom relative to the fixed member, which can rotate along a circumferential direction perpendicular to and around the optical axis; At least one driving magnet, disposed on the rotating member; as well as at least one coil, arranged corresponding to the at least one driving magnet, to drive the rotating member to rotate; as well as a preload mechanism, providing an attractive force acting between the rotating member and the fixed member, wherein the attractive force comprises a magnetic force of the rotating member acting on a certain magnet disposed on the fixed member; The preload mechanism provides a driving force acting on the rotatable blades to keep the light-through hole in an expanded state.

18. The optical lens module according to claim 17, characterized in that: The driving unit further comprises: At least two bearing elements are arranged around the optical axis, the at least two bearing elements are arranged between the rotating member and the fixed member, and the at least two bearing elements support the rotating member so that the rotating member can rotate along the circumferential direction relative to the fixed member.

19. The optical lens module according to claim 17, characterized in that: The variable aperture group further comprises: A printed circuit board is arranged corresponding to and electrically connected to the driving part.

20. The optical lens module according to claim 17, characterized in that: The at least one driving magnet and the at least one coil are arranged correspondingly in a direction perpendicular to the optical axis.

21. The optical lens module according to claim 17, characterized in that: The at least one driving magnet and the at least one coil are correspondingly arranged in a direction parallel to the optical axis.

22. The optical lens module according to claim 17, characterized in that: The magnetic force of the rotating member acts between the fixed magnet and the at least one driving magnet.

23. The optical lens module according to claim 17, characterized in that: The magnetic force of the rotating member acts between the fixed magnet and a moving magnet arranged on the rotating member.

24. The optical lens module according to claim 17, characterized in that: The magnetic force of the rotating member acts between the fixed magnet and a third magnetic element fixed to the rotating member.

25. The optical lens module according to claim 17, characterized in that: The maximum viewing angle of the optical lens module is FOV, which meets the following conditions: 50 degrees ≤ FOV ≤ 105 degrees.

26. The optical lens module according to claim 17, characterized in that: The aperture value of the optical lens module is FNO, which meets the following conditions: 0.9≤FNO≤5.

6.

27. An optical lens module, characterized in that: Include: at least one lens; and a variable aperture group, arranged corresponding to the at least one lens, and the variable aperture group comprises: A plurality of rotatable blades are rotatably arranged around an optical axis of the at least one lens and together form a light-through hole, and the optical axis passes through the light-through hole; A driving unit, comprising: a rotating member, arranged corresponding to the rotatable blades, and used to drive the rotatable blades to rotate so as to adjust the aperture size of the light-through hole; a fixed member, arranged corresponding to the rotating member, and the rotating member has a degree of freedom relative to the fixed member, which can rotate along a circumferential direction perpendicular to and around the optical axis; At least one driving magnet, disposed on the rotating member; as well as at least one coil, arranged corresponding to the at least one driving magnet, to drive the rotating member to rotate; as well as a preload mechanism, providing a repulsive force acting between the rotating member and the fixed member, wherein the repulsive force comprises a magnetic force of the rotating member acting on a certain magnet disposed on the fixed member; The preload mechanism provides a driving force acting on the rotatable blades to keep the light-through hole in an expanded state.

28. The optical lens module according to claim 27, characterized in that: The driving unit further comprises: At least two bearing elements are arranged around the optical axis, the at least two bearing elements are arranged between the rotating member and the fixed member, and the at least two bearing elements support the rotating member so that the rotating member can rotate along the circumferential direction relative to the fixed member.

29. The optical lens module according to claim 27, characterized in that: The variable aperture group further comprises: A printed circuit board is arranged corresponding to and electrically connected to the driving part.

30. The optical lens module according to claim 27, characterized in that: The magnetic force of the rotating member acts between the fixed magnet and the at least one driving magnet.

31. The optical lens module according to claim 27, characterized in that: The magnetic force of the rotating member acts between the fixed magnet and a moving magnet arranged on the rotating member.

Images