Imaging lens driving module, camera module and electronic device

Abstract

The invention discloses an imaging lens driving module. The imaging lens driving module comprises a lens unit, a base, a shell, an automatic focusing driving assembly and a flexible element, the lens unit is accommodated in an internal space defined by the base and the housing and includes first and third rails parallel to the optical axis. The base includes second and fourth rails parallel to the optical axis. The first and second tracks receive a first ball. The third and fourth rails receive a second ball. The total number of the first balls and the second balls is at least three. The automatic focusing driving assembly is used for driving the lens unit to move relative to the base. The soft element is arranged between the lens unit and the base and / or the shell so as to reduce impact generated by collision between the lens unit and an adjacent element when the lens unit moves. One surface of each of the first and third tracks and two surfaces of each of the third and fourth tracks respectively have only one contact point with the first sphere or the second sphere. The invention further discloses a camera module with the imaging lens driving module and an electronic device with the camera module.

Description

TECHNICAL FIELD

[0001] The present application relates to an imaging lens driving module, a camera module and an electronic device, in particular to an imaging lens driving module and a camera module suitable for an electronic device. BACKGROUND

[0002] With the advancement of semiconductor process technology, the performance of electronic photosensitive elements is improved, and the size of pixels can reach smaller size. Therefore, optical lenses with high imaging quality are indispensable. In addition, with the rapid development of technology, the application range of mobile devices equipped with optical lenses is more extensive, and the requirements for optical lenses are more diverse.

[0003] However, in recent years, traditional optical lenses have been difficult to meet the high optical quality requirements of electronic products under diversified development. In particular, the movement stability of the existing optical lenses during focusing process cannot meet the increasingly strict market demand for optical quality. Therefore, how to improve the mechanism for moving optical lenses to meet the high-specification requirements of electronic devices has become an important issue in the related field. SUMMARY

[0004] In view of the above-mentioned problems, the present application provides an imaging lens driving module, a camera module and an electronic device, which helps to improve the movement stability of the optical lens during the focusing process.

[0005] The present application provides an imaging lens driving module, which includes a lens unit, a base, a housing, an auto-focusing driving assembly and at least one soft element. The lens unit has an optical axis, and the lens unit includes a first track and a third track extending along a direction parallel to the optical axis, wherein the first track includes a second surface, and the third track includes a third surface. The lens unit is disposed relative to the base. The base includes a second track and a fourth track extending along a direction parallel to the optical axis, wherein the second track includes a fifth surface and a sixth surface, the sixth surface and the fifth surface are connected to each other and form an included angle, the fourth track includes a seventh surface and an eighth surface, and the eighth surface and the seventh surface are connected to each other and form an included angle. The housing is coupled to the base and jointly defines an internal space, and the internal space is used to accommodate the lens unit. The first track and the second track are correspondingly arranged to accommodate at least one first sphere, and the third track and the fourth track are correspondingly arranged to accommodate at least one second sphere, so as to provide a movement degree of freedom of the lens unit along a direction parallel to the optical axis. The total number of the first spheres and the second spheres is at least three. The auto-focusing driving assembly is used to drive the lens unit to move relative to the base along a direction parallel to the optical axis. The auto-focusing driving assembly includes at least one magnet and at least one coil, the coil is correspondingly arranged opposite to the magnet, and one of the magnet and the coil is arranged on the lens unit. The soft element is arranged between the lens unit and the base and / or between the lens unit and the housing, and the soft element can be deformed to reduce the impact generated by the lens unit colliding with adjacent elements when moving along a direction parallel to the optical axis. Preferably, a movement track of a center of the first sphere along a direction parallel to the first track is defined as a first spherical axis, a movement track of a center of the second sphere along a direction parallel to the third track is defined as a second spherical axis, and a first connecting line connecting between the first spherical axis and the second spherical axis in a direction perpendicular to the optical axis is defined. Preferably, the sixth surface is closer to a center point of the first connecting line than the fifth surface, and the seventh surface is closer to the center point of the first connecting line than the eighth surface. The second surface, the fifth surface and the sixth surface respectively have only one contact point with the first sphere, and the third surface, the seventh surface and the eighth surface respectively have only one contact point with the second sphere. An included angle between the sixth surface and the seventh surface is θ 67 , and an included angle between the fifth surface and the eighth surface is θ 58 , which satisfies the following condition: |θ 67 -π|≤|θ 58 -π|。Preferably, the sixth surface and the seventh surface are parallel to each other.

[0006] The present application provides an imaging lens driving module. The imaging lens driving module includes a lens unit, a base, a housing, an auto-focusing driving assembly, and at least one soft element. The lens unit has an optical axis. The lens unit includes a first track and a third track extending in a direction parallel to the optical axis. The first track includes a second surface, and the third track includes a third surface. The lens unit is disposed relative to the base. The base includes a second track and a fourth track extending in a direction parallel to the optical axis. The second track includes a fifth surface and a sixth surface connected to each other and forming an included angle. The fourth track includes a seventh surface and an eighth surface connected to each other and forming an included angle. The housing is coupled to the base and defines an internal space together with the base. The internal space is configured to accommodate the lens unit. The first track and the second track are correspondingly configured to accommodate at least one first sphere, and the third track and the fourth track are correspondingly configured to accommodate at least one second sphere, so as to provide a degree of freedom for the lens unit to move in a direction parallel to the optical axis. The total number of the first spheres and the second spheres is at least three. The auto-focusing driving assembly is configured to drive the lens unit to move relative to the base in a direction parallel to the optical axis. The auto-focusing driving assembly includes at least one magnet and at least one coil. The coil is correspondingly disposed opposite to the magnet, and one of the magnet and the coil is disposed on the lens unit. The soft element is disposed between the lens unit and the base and / or between the lens unit and the housing. The soft element can be deformed to reduce impact generated by the lens unit colliding with adjacent elements when the lens unit moves in a direction parallel to the optical axis. The second surface, the fifth surface, and the sixth surface each have only one contact point with the first sphere, and the third surface, the seventh surface, and the eighth surface each have only one contact point with the second sphere. The included angle between the sixth surface and the seventh surface is θ 67 , and the included angle between the fifth surface and the eighth surface is θ 58 , which satisfy the following condition: |θ 67 -π|≤|θ 58 -π|.

[0007] The present application provides a camera module including the aforementioned imaging lens driving module and an electronic photosensitive element disposed on an imaging surface of the imaging lens driving module.

[0008] The present application provides an electronic device including the aforementioned camera module.

[0009] According to the imaging lens driving module, the camera module, and the electronic device disclosed by the present application, the soft element is disposed between the lens unit and the base and / or between the lens unit and the housing to reduce impact generated by the lens unit colliding with adjacent elements, so as to ensure stability of the lens unit and improve service life of the lens unit. In addition, the embedding of the tracks and the spheres ensures stability of the lens unit when the lens unit moves for auto-focusing, so as to improve imaging quality.

[0010] The above description about the content of the present application and the following description of the embodiments are to demonstrate and explain the principles of the present application, and to provide further explanation of the claims of the present application. BRIEF DESCRIPTION OF DRAWINGS

[0011] Figure 1 A top view schematic diagram of a camera module according to a first embodiment of the present application is shown.

[0012] Figure 2 A side view schematic diagram of the camera module of Figure 1 is shown.

[0013] Figure 3 An exploded view schematic diagram of the camera module of Figure 1 is shown.

[0014] Figure 4 Another exploded view schematic diagram of the camera module of Figure 1 is shown.

[0015] Figure 5 A sectional view schematic diagram of the camera module of Figure 1 along section line 5-5 is shown.

[0016] Figure 6 A sectional view schematic diagram of the camera module of Figure 2 along section line 6-6 is shown.

[0017] Figure 7 A top view schematic diagram of the camera module of Figure 1 rotated and with the housing omitted is shown.

[0018] Figure 8 An enlarged view schematic diagram of the area EL1 of Figure 7 is shown.

[0019] Figure 9 A schematic diagram of the positional relationship between the track and the ball in the camera module of Figure 7 is shown.

[0020] Figure 10 A top view schematic diagram of a camera module according to a second embodiment of the present application is shown.

[0021] Figure 11 A side view schematic diagram of the camera module of Figure 10 is shown.

[0022] Figure 12 An exploded view schematic diagram of the camera module of Figure 10 is shown.

[0023] Figure 13 Another exploded view schematic diagram of the camera module of Figure 10 is shown.

[0024] Figure 14 schematic view of the camera module of Figure 10

[0025] Figure 15 schematic view of the camera module of Figure 10

[0026] Figure 16 schematic view of the camera module of Figure 11

[0027] Figure 17 schematic view of the camera module of Figure 10

[0028] Figure 18 schematic view of the camera module of Figure 17

[0029] Figure 19 schematic view of the camera module of Figure 10

[0030] Figure 20 schematic view of the camera module of

[0031] Figure 21 schematic view of the camera module of

[0032] Figure 22 schematic view of the camera module of

[0033] Figure 23 schematic view of the camera module of Figure 22

[0034] Figure 24 schematic view of the camera module of

[0035] Figure 25 schematic view of the camera module of Figure 24

[0036] Figure 26 schematic view of the camera module of

[0037] ​​​​​​​​Figure 27 A schematic diagram of capturing an image with a high-pixel camera module.

[0038] Figure 28 A schematic diagram of capturing an image with a telephoto camera module.

[0039] Figure 29 A perspective view of one side of an electronic device according to a fourth embodiment of the present application.

[0040] Figure 30 A perspective view of an electronic device according to a fifth embodiment of the present application.

[0041] Figure 31 A side view of an electronic device according to Figure 30

[0042] Figure 32 A top view of an electronic device according to Figure 30

[0043]

Symbol Description

[0044] 9, 9b: camera module

[0045] 8, 8b: electronic photosensitive element

[0046] IMG: imaging surface

[0047] 1, 1b: imaging lens driving module

[0048] 11, 11b: lens unit

[0049] 111, 111b: first track

[0050] 122, 122b: second track

[0051] 113, 113b: third track

[0052] 124, 124b: fourth track

[0053] 12, 12b: base

[0054] 13, 13b: housing

[0055] 14, 14b: auto-focusing driving assembly

[0056] 141, 141b: magnet

[0057] 142, 142b: coil

[0058] 15, 15b: flexible element

[0059] 17b: flexible circuit board

[0060] ​​18: circuit board

[0061] M1, M2, M3: meandering line

[0062] UL1, UL2, UL3, UL4: turning portion

[0063] SL1, SL2, SL4: straight line portion

[0064] F4: folding line

[0065] G1: gap

[0066] C1: contact point

[0067] OL: optical axis

[0068] B1: first sphere

[0069] B2: second sphere

[0070] A1: first sphere axis

[0071] A2: second sphere axis

[0072] L1: first connecting line

[0073] L2: second connecting line

[0074] L3: third connecting line

[0075] L4: fourth connecting line

[0076] P1: center point

[0077] P2: eccentric point

[0078] S1, S1b: first surface

[0079] S2, S2b: second surface

[0080] S3, S3b: third surface

[0081] S4, S4b: fourth surface

[0082] S5, S5b: fifth surface

[0083] S6, S6b: sixth surface

[0084] S7, S7b: seventh surface

[0085] S8, S8b: eighth surface

[0086] θ 56 : angle between fifth surface and sixth surface

[0087] θ 58 : angle between fifth surface and eighth surface

[0088] θ 67 : angle between the sixth surface and the seventh surface

[0089] θ 78 : angle between the seventh surface and the eighth surface

[0090] θa: angle between the third connecting line and the first connecting line

[0091] θb: angle between the third connecting line and the fourth connecting line

[0092] d1: distance between the center point of the first connecting line and the second ball shaft

[0093] d2: distance between the eccentric point and the second ball shaft

[0094] 200, 300, 400: electronic device

[0095] 201, 301: flash module

[0096] 202: focus-assisting module

[0097] 203: image signal processor

[0098] 204: display module

[0099] 200a, 200b, 200c, 200d, 300a, 300b, 300c, 300d, 300e, 300f, 300g, 300h, 300i, 401: camera module DETAILED DESCRIPTION

[0100] The detailed features and advantages of the present application are described in detail in the embodiments below, which are sufficient to enable any person skilled in the art to understand the technical content of the present application and to implement it, and according to the content disclosed in the specification, claims and drawings, any person skilled in the art can easily understand the related purposes and advantages of the present application. The following examples further illustrate the ideas of the present application, but do not limit the scope of the present application in any way.

[0101] The present application provides an imaging lens driving module, which includes a lens unit, a base, a housing, an auto-focusing driving assembly and at least one flexible element.

[0102] The lens unit is disposed relative to the base, the housing is coupled with the base and jointly defines an internal space, and the internal space is used to accommodate the lens unit.

[0103] The lens unit has an optical axis, and the lens unit includes a first track and a third track extending in a direction parallel to the optical axis, wherein the first track includes a second surface, and the third track includes a third surface. The base includes a second track and a fourth track extending in a direction parallel to the optical axis, wherein the second track includes a fifth surface and a sixth surface connected to each other and forming an included angle, and the fourth track includes a seventh surface and an eighth surface connected to each other and forming an included angle.

[0104] The first track and the second track are correspondingly arranged to accommodate at least one first ball, and the third track and the fourth track are correspondingly arranged to accommodate at least one second ball, so as to provide a movement degree of freedom of the lens unit in a direction parallel to the optical axis. That is, the first track and the second track are correspondingly arranged to each other, and the third track and the fourth track are correspondingly arranged to each other, thereby forming two internal spaces for accommodating the first ball and the second ball, respectively. The total number of the first ball and the second ball is at least three. For example, in an embodiment of the present application, when at least two first balls and at least two second balls are arranged respectively, the stability of the lens unit during movement can be improved. However, in another embodiment of the present application, when the overall space of the imaging lens driving module is limited, the number of one of the first ball and the second ball can be one, and the number of the other can be at least two, but the present application is not limited thereto.

[0105] The autofocus driving assembly is used to drive the lens unit to move relative to the base in a direction parallel to the optical axis. In detail, the autofocus driving assembly includes at least one magnet and at least one coil, wherein the coil is correspondingly arranged to face the magnet, and one of the magnet and the coil is arranged on the lens unit. For example, in an embodiment of the present application, one of the magnet and the coil is arranged on the lens unit, and the other is arranged on the base. In addition, the present application is not limited to the number of magnets and coils. For example, in an embodiment of the present application, the number of magnets and the number of coils are both single, and the single coil is correspondingly arranged to face the single magnet. In another embodiment of the present application, the number of magnets and the number of coils are both multiple and corresponding, and the coils are correspondingly arranged to face the magnets, respectively.

[0106] The soft element is arranged between the lens unit and the base and / or between the lens unit and the housing, and the soft element can be deformed to reduce the impact generated by the lens unit colliding with adjacent elements when moving in a direction parallel to the optical axis. The material of the soft element can be, for example, rubber or silicone, but the present application is not limited thereto. The soft element arranged between the lens unit and the base and / or between the lens unit and the housing can mean that the soft element is arranged between at least one of the lens unit and the base and the lens unit and the housing.

[0107] The second surface of the first track and the fifth and sixth surfaces of the second track each have only one contact point with the first ball, and the third surface of the third track and the seventh and eighth surfaces of the fourth track each have only one contact point with the second ball.

[0108] The angle between the sixth surface and the seventh surface is θ 67 , and the angle between the fifth surface and the eighth surface is θ 58 , which satisfy the following condition: |θ 67 -π|≤|θ 58 -π|. Please refer to Figure 9 , which shows a schematic diagram of the parameters θ 58 and θ 67 in the first embodiment of the present application.

[0109] According to the disclosed imaging lens driving module, the soft element is arranged between the lens unit and the base and / or between the lens unit and the housing, so as to reduce the impact generated by the impact between the lens unit and the adjacent elements, to ensure the stability of the lens unit and improve the service life of the lens unit. In addition, the stability of the lens unit during automatic focusing movement can be ensured by the fitting of the tracks and the balls, so as to improve the imaging quality.

[0110] The moving track of the center of the first ball along the direction parallel to the first track is defined as a first ball axis, the moving track of the center of the second ball along the direction parallel to the third track is defined as a second ball axis, and a first connecting line is defined in the direction perpendicular to the optical axis and connected between the first ball axis and the second ball axis. The first ball axis and the second ball axis are two different ball axes and are substantially parallel to the optical axis. The two ball axes are substantially parallel to the optical axis, which means that the inclination angle of each of the two ball axes relative to the optical axis is not more than 3 degrees. Please refer to Figure 5 and Figure 7 , which respectively show the schematic diagram of the first ball axis A1, the second ball axis A2 and the first connecting line L1 in the first embodiment of the present application.

[0111] The sixth surface can be closer to a center point of the first connecting line than the fifth surface, and the seventh surface can be closer to the center point of the first connecting line than the eighth surface. In addition, the sixth surface and the seventh surface can be parallel to each other. The sixth surface and the seventh surface are parallel to each other, which means that the sixth surface and the seventh surface are substantially parallel to each other, and the inclination angle of the two surfaces relative to each other is not more than 3 degrees. Please refer to Figure 7 and Figure 9 , which respectively show the positional relationship between the center point P1 of the first connecting line L1 and the fifth surface S5, the sixth surface S6, the seventh surface S7 and the eighth surface S8 in the first embodiment of the present application.

[0112] In one embodiment of the present application, the soft element can be coupled to the base, and the soft element can face the lens unit. By the above configuration of the soft element, the impact caused by the lens unit colliding with the adjacent element can be reduced, the stability of the lens unit can be ensured, and the service life of the lens unit can be improved. The soft element coupled to the base can serve as a buffer between the base and the lens unit.

[0113] In one embodiment of the present application, the soft element can be coupled to the lens unit, and the soft element can face the housing. By the above configuration of the soft element, the impact caused by the lens unit colliding with the adjacent element can be reduced, the stability of the lens unit can be ensured, and the service life of the lens unit can be improved. The soft element coupled to the lens unit can serve as a buffer between the lens unit and the housing.

[0114] The soft element can include at least two soft elements, and the at least two soft elements can be respectively arranged between the lens unit and the base and between the lens unit and the housing. By the above configuration of the soft element, the impact caused by the lens unit colliding with the adjacent element can be reduced, the stability of the lens unit can be ensured, and the service life of the lens unit can be improved. The soft elements arranged between the lens unit and the base and between the lens unit and the housing can reduce the impact caused by the lens unit colliding with the base and the housing when the lens unit moves in the optical axis direction.

[0115] The total number of the soft elements can be eight. By the appropriate number of soft elements, the impact caused by the lens unit colliding with the adjacent element can be reduced, the stability of the lens unit can be ensured, and the service life of the lens unit can be improved.

[0116] In one embodiment of the present application, the magnet can be arranged in the lens unit, the coil can be arranged in the base, and the coil and the magnet are arranged correspondingly. By the above configuration, the magnet and the coil can be arranged in the ideal driving position, and the design margin of the autofocus driving assembly can be increased. By the above configuration, the coil can move with the movable lens unit in the direction parallel to the optical axis, and the magnet is fixed on the base.

[0117] In one embodiment of the present application, the coil can be arranged in the lens unit, the magnet can be arranged in the base, and the magnet and the coil are arranged correspondingly. By the above configuration, the coil and the magnet can be arranged in the ideal driving position, and the design margin of the autofocus driving assembly can be increased. By the above configuration, the coil can move with the movable lens unit in the direction parallel to the optical axis, and the magnet is fixed on the base.

[0118] The imaging lens driving module of the present application can further include a flexible circuit board, and the flexible circuit board can be coupled with the lens unit. By virtue of the flexible circuit board, the flexible circuit board has sufficient flexibility to follow the movement of the lens unit during auto-focusing, thereby satisfying the driving requirements in all directions. The flexible circuit board can be designed to move along with the lens unit in the optical axis direction.

[0119] In one embodiment of the present application, the coil can be disposed on the flexible circuit board, and the flexible circuit board can include a meandering line having overlapping portions in a direction perpendicular to the optical axis. By virtue of the meandering line, the design flexibility of the flexible circuit board can be increased to satisfy the driving requirements in all directions. The flexible circuit board can move along with the lens unit during auto-focusing, and thus the flexibility of the flexible circuit board can be improved by the meandering line, but the present application is not limited thereto.

[0120] In one embodiment of the present application, the coil can be disposed on the flexible circuit board, and the flexible circuit board can include a folded line having overlapping portions in a direction parallel to the optical axis. By virtue of the folded line, the design flexibility of the flexible circuit board can be increased to satisfy the driving requirements in all directions. The flexible circuit board can move along with the lens unit during auto-focusing, and thus the flexibility of the flexible circuit board can be improved by the folded line, but the present application is not limited thereto.

[0121] The at least one first sphere can include at least two first spheres, and the at least one second sphere can include at least two second spheres. That is, the number of the first spheres can be at least two, and the number of the second spheres can be at least two. By virtue of the appropriate number of the spheres, the stability of the lens unit during movement can be improved.

[0122] According to the imaging lens driving module of the present application, a second connecting line is defined to be simultaneously orthogonal to and to intersect the optical axis and the first connecting line and to be connected between the optical axis and the first connecting line, and the intersection point of the first connecting line and the second connecting line is an eccentric point. The distance between the center point of the first connecting line and the second sphere axis is d1, and the distance between the eccentric point and the second sphere axis is d2, which can satisfy the following condition: 1.1≤d1 / d2<4.9. By virtue of the eccentric design, the imaging lens driving module can be disposed at the corner position of the screen of a mobile phone, thereby helping to improve the space utilization inside the mobile phone. The eccentric point and the center point are two different points, and the eccentric point is closer to one of the sphere axes. Please refer to Figure 7 FIG. 1 shows a schematic diagram of the first connecting line L1 and the center point P1, the second connecting line L2, the eccentric point P2, and the parameters d1 and d2 according to the first embodiment of the present application.

[0123] According to the imaging lens driving module disclosed by the present application, a third connecting line is defined between the center of the soft element and the center point of the first connecting line, and a fourth connecting line is defined which is orthogonal to the optical axis and intersects the optical axis and is connected between the optical axis and the center point of the first connecting line. The included angle between the third connecting line and the first connecting line is θa, and the included angle between the third connecting line and the fourth connecting line is θb, which can satisfy the following condition: θa+θb≠90 degrees. In this way, through the eccentric design, the imaging lens driving module can be arranged at the corner position of the mobile phone screen, thereby helping to improve the space utilization rate inside the mobile phone. Further, θa can also refer to the included angle between the first connecting line and the third connecting line at the part between the center point and the ball shaft farther away from the eccentric point in the direction parallel to the first connecting line. Please refer to Figure 7 which shows a schematic diagram of the first connecting line L1 and the center point P1, the third connecting line L3, the fourth connecting line L4, and the parameters θa and θb according to the first embodiment of the present application.

[0124] The included angle between the fifth surface and the sixth surface of the second track is θ 56 which can satisfy the following condition: π / 2≤θ 56 <π. In this way, the design margin of the track can be increased, which is sufficient to adapt to various types of driving modes. Among them, the following condition can also be met: 98 degrees≤θ 56 <π. Among them, the fifth surface and the sixth surface can be formed as an acute angle or a rounded angle, but the present application is not limited thereto. Please refer to Figure 9 which shows a schematic diagram of the parameter θ 56 according to the first embodiment of the present application.

[0125] The included angle between the seventh surface and the eighth surface of the fourth track is θ 78 which can satisfy the following condition: π / 2≤θ 78 <π. In this way, the design margin of the track can be increased, which is sufficient to adapt to various types of driving modes. Among them, the following condition can also be met: 98 degrees≤θ 78 <π. Among them, the seventh surface and the eighth surface can be formed as an acute angle or a rounded angle, but the present application is not limited thereto. Please refer to Figure 9 which shows a schematic diagram of the parameter θ 78 according to the first embodiment of the present application.

[0126] The first track can further include a first surface, and the first surface and the second surface can be connected to each other and form an included angle. Also, the third track can further include a fourth surface, and the fourth surface and the third surface can be connected to each other and form an included angle. There can be a gap between the first surface and the first ball, and / or there can be a gap between the fourth surface and the second ball; that is, at least one of the gap between the first surface and the first ball and the gap between the fourth surface and the second ball can exist. The first surface and the sixth surface can be parallel to each other, and the fourth surface and the seventh surface can be parallel to each other. In this way, the gap can be used to adjust the manufacturing precision as needed, thereby improving the mass productivity. In an embodiment of the present application, there can be a gap between the first surface and the first ball, and there can also be a gap between the fourth surface and the second ball, but the present application is not limited thereto.

[0127] The present application provides a camera module including an electronic photosensitive element and the aforementioned imaging lens driving module, wherein the electronic photosensitive element is disposed on an imaging surface of the imaging lens driving module.

[0128] The present application provides an electronic device including the aforementioned camera module.

[0129] The technical features of the imaging lens driving module disclosed in the present application can be combined to achieve the corresponding effects.

[0130] According to the above-mentioned embodiments, the following specific examples are described in detail with reference to the accompanying drawings.

[0131] <First Embodiment>

[0132] Please refer to Figures 1 to 9 , wherein Figure 1 a top view of a camera module according to the first embodiment of the present application is shown, Figure 2 a side view of the camera module of Figure 1 is shown, Figure 3 an exploded view of the camera module of Figure 1 is shown, Figure 4 another exploded view of the camera module of Figure 1 is shown, Figure 5 a cross-sectional view of the camera module of Figure 1 along section line 5-5 is shown, Figure 6 a cross-sectional view of the camera module of Figure 2 along section line 6-6 is shown, Figure 7 a top view of the camera module of Figure 1 after rotation and omitting the housing is shown, Figure 8 an enlarged view of region EL1 of Figure 7 is shown, and Figure 9 a cross-sectional view of the camera module of Figure 7Fig. 1 is a schematic view of the positional relationship between a track and a ball in a camera module according to an embodiment of the present application.

[0133] The camera module 9 of the present embodiment includes an imaging lens driving module 1 and an electronic photosensitive element 8, wherein the electronic photosensitive element 8 is disposed on an imaging surface IMG of the imaging lens driving module 1.

[0134] The imaging lens driving module 1 includes a lens unit 11, a base 12, a housing 13, an auto-focusing driving assembly 14, and eight soft elements 15.

[0135] The lens unit 11 is disposed relative to the base 12, the housing 13 is coupled to the base 12 and jointly defines an internal space (not separately labeled) for accommodating the lens unit 11.

[0136] The lens unit 11 has an optical axis OL, and includes a first track 111 and a third track 113 extending in a direction parallel to the optical axis OL. As shown in Figure 8 and Figure 9 the first track 111 includes a first surface S1 and a second surface S2, and the second surface S2 is connected to the first surface S1 and forms an included angle therebetween. The third track 113 includes a third surface S3 and a fourth surface S4, and the fourth surface S4 is connected to the third surface S3 and forms an included angle therebetween.

[0137] The base 12 includes a second track 122 and a fourth track 124 extending in a direction parallel to the optical axis OL. As shown in Figure 8 and Figure 9 the second track 122 includes a fifth surface S5 and a sixth surface S6, and the sixth surface S6 is connected to the fifth surface S5 and forms an included angle therebetween. The fourth track 124 includes a seventh surface S7 and an eighth surface S8, and the eighth surface S8 is connected to the seventh surface S7 and forms an included angle therebetween.

[0138] The first track 111 and the second track 122 are correspondingly disposed to accommodate three first balls B1, and the third track 113 and the fourth track 124 are correspondingly disposed to accommodate three second balls B2, so as to provide a movement degree of freedom of the lens unit 11 in a direction parallel to the optical axis OL.

[0139] As shown in Figures 7 to 9 there is a gap G1 between the first surface S1 and the first ball B1, and a gap G1 between the fourth surface S4 and the second ball B2. In addition, the first surface S1 of the first track 111 and the sixth surface S6 of the second track 122 are parallel to each other, the fourth surface S4 of the third track 113 and the seventh surface S7 of the fourth track 124 are parallel to each other, and the sixth surface S6 of the second track 122 and the seventh surface S7 of the fourth track 124 are parallel to each other.

[0140] As shown in Figure 9 , each of the first spheres B1 has only one contact point C1 with the second surface S2, the fifth surface S5 and the sixth surface S6, respectively, and each of the second spheres B2 has only one contact point C1 with the third surface S3, the seventh surface S7 and the eighth surface S8, respectively.

[0141] The angle between the sixth surface S6 and the seventh surface S7 is θ 67 , and the angle between the fifth surface S5 and the eighth surface S8 is θ 58 , which satisfy the following conditions: θ 67 = 180 degrees; θ 58 = 60 degrees; and |θ 67 - π | < |θ 58 - π |.

[0142] The angle between the fifth surface S5 and the sixth surface S6 is θ 56 , which satisfy the following condition: θ 56 = 120 degrees.

[0143] The angle between the seventh surface S7 and the eighth surface S8 is θ 78 , which satisfy the following condition: θ 78 = 120 degrees.

[0144] As shown in Figure 5 and Figure 7 , the moving track of the center of the first sphere B1 along the direction parallel to the first track 111 is defined as a first sphere axis A1, and the moving track of the center of the second sphere B2 along the direction parallel to the third track 113 is defined as a second sphere axis A2. Also, a first connecting line L1 connecting between the first sphere axis A1 and the second sphere axis A2 in the direction perpendicular to the optical axis OL is defined, and a second connecting line L2 connecting between the optical axis OL and the first connecting line L1 while being orthogonal and intersecting the optical axis OL and the first connecting line L1 is defined.

[0145] According to the above definitions, the sixth surface S6 is closer to a center point P1 of the first connecting line L1 than the fifth surface S5, and the seventh surface S7 is closer to the center point P1 of the first connecting line L1 than the eighth surface S8. Also, the intersection point of the first connecting line L1 and the second connecting line L2 is an eccentric point P2, wherein the eccentric point P2 is closer to the second sphere axis A2 (i.e., the distance between the eccentric point P2 and the first sphere axis A1 is greater than the distance between the eccentric point P2 and the second sphere axis A2).

[0146] Furthermore, the distance between the center point P1 of the first connecting line L1 and the second spherical axis A2 is d1, and the distance between the eccentric point P2 and the second spherical axis A2 is d2, which satisfy the following conditions: d1 = 3.01 mm; d2 = 2.38 mm; and d1 / d2 = 1.26.

[0147] The autofocus drive assembly 14 is used to drive the lens unit 11 to move relative to the base 12 in a direction parallel to the optical axis OL. Specifically, the autofocus drive assembly 14 includes a magnet 141 and a coil 142, with the coil 142 correspondingly disposed facing the magnet 141. The magnet 141 is disposed on the lens unit 11, and the coil 142 is disposed on the base 12. In this embodiment, the coil 142 is disposed on the base 12, for example, via a circuit board 18 attached to the base 12.

[0148] Of these flexible elements 15, four are disposed between the lens unit 11 and the base 12, and another four are disposed between the lens unit 11 and the housing 13, to reduce the impact caused by the lens unit 11 colliding with adjacent elements when it moves in a direction parallel to the optical axis OL. In this embodiment, the flexible element 15 disposed between the lens unit 11 and the base 12 is coupled to the base 12 and faces the lens unit 11, while the flexible element 15 disposed between the lens unit 11 and the housing 13 is coupled to the lens unit 11 and faces the housing 13.

[0149] Furthermore, such as Figure 7 As shown, a third connecting line L3 is defined, connecting the center of the flexible element 15 and the center point P1 of the first connecting line L1. A fourth connecting line L4 is defined, orthogonal to and intersecting the optical axis OL, connecting the optical axis OL and the center point P1 of the first connecting line L1. The angle between the third connecting line L3 and the first connecting line L1 is θa, and the angle between the third connecting line L3 and the fourth connecting line L4 is θb, satisfying the following conditions: θa = 23 degrees; θb = 78 degrees; and θa + θb = 101 degrees.

[0150] <Second Embodiment>

[0151] Please refer to Figures 10 to 18 ,in Figure 10 A top view schematic diagram of a camera module according to a second embodiment of the present invention is shown. Figure 11 Draw Figure 10 A side view diagram of the camera module. Figure 12 Draw Figure 10 An exploded view of the camera module. Figure 13 Draw Figure 10 Another exploded view of the camera module, Figure 14 Draw Figure 10Another exploded view of the camera module. Figure 15 Draw Figure 10 A cross-sectional view of the camera module along section line 15-15. Figure 16 Draw Figure 11 A cross-sectional view of the camera module along section line 16-16. Figure 17 Draw Figure 10 The top view of the camera module, rotated and omitting the outer casing, and Figure 18 Draw Figure 17 A schematic diagram showing the positional relationship between the track and the sphere in the camera module.

[0152] The camera module 9b in this embodiment includes an imaging lens driving module 1b and an electronic photosensitive element 8b, wherein the electronic photosensitive element 8b is disposed on an imaging surface IMG of the imaging lens driving module 1b.

[0153] The imaging lens drive module 1b includes a lens unit 11b, a base 12b, a housing 13b, an autofocus drive assembly 14b, eight flexible components 15b, and a flexible circuit board 17b.

[0154] The lens unit 11b is disposed relative to the base 12b, and the housing 13b is coupled to the base 12b and together defines an internal space (not otherwise indicated), and the internal space is used to accommodate the lens unit 11b.

[0155] Lens unit 11b has an optical axis OL, and includes a first track 111b and a third track 113b extending in a direction parallel to the optical axis OL. For example... Figure 18 As shown, the first track 111b includes a first surface S1b and a second surface S2b, and the second surface S2b and the first surface S1b are connected to each other and form an angle. The third track 113b includes a third surface S3b and a fourth surface S4b, and the fourth surface S4b and the third surface S3b are connected to each other and form an angle.

[0156] The base 12b includes a second track 122b and a fourth track 124b extending in a direction parallel to the optical axis OL. For example... Figure 18 As shown, the second track 122b includes a fifth surface S5b and a sixth surface S6b, and the sixth surface S6b and the fifth surface S5b are connected to each other and form an angle. The fourth track 124b includes a seventh surface S7b and an eighth surface S8b, and the eighth surface S8b and the seventh surface S7b are connected to each other and form an angle.

[0157] The first rails 111b and the second rails 122b are correspondingly arranged to accommodate the three first balls B1, and the third rails 113b and the fourth rails 124b are correspondingly arranged to accommodate the three second balls B2, so as to provide a movement degree of freedom of the lens unit 11b along a direction parallel to the optical axis OL.

[0158] As shown in Figure 17 and Figure 18 , the first surface S1b of the first rails 111b and the sixth surface S6b of the second rails 122b are parallel to each other, the fourth surface S4b of the third rails 113b and the seventh surface S7b of the fourth rails 124b are parallel to each other, and the sixth surface S6b of the second rails 122b and the seventh surface S7b of the fourth rails 124b are parallel to each other.

[0159] As shown in Figure 18 , each of the first balls B1 has only one contact point C1 with the second surface S2b, the fifth surface S5b and the sixth surface S6b, and each of the second balls B2 has only one contact point C1 with the third surface S3b, the seventh surface S7b and the eighth surface S8b.

[0160] The angle between the sixth surface S6b and the seventh surface S7b is θ 67 , and the angle between the fifth surface S5b and the eighth surface S8b is θ 58 , which satisfy the following conditions: θ 67 = 180 degrees; θ 58 = 180 degrees; and |θ 67 - π | = |θ 58 - π |. In the present embodiment, the sixth surface S6b and the seventh surface S7b are parallel to each other, so the angle θ 67 between the sixth surface S6b and the seventh surface S7b is 180 degrees; and the fifth surface S5b and the eighth surface S8b are parallel to each other, so the angle θ 58 between the fifth surface S5b and the eighth surface S8b is 180 degrees.

[0161] The angle between the fifth surface S5b and the sixth surface S6b is θ 56 , which satisfies the following condition: θ 56 = 90 degrees.

[0162] The angle between the seventh surface S7b and the eighth surface S8b is θ 78 , which satisfies the following condition: θ 78 = 90 degrees.

[0163] As shown in Figure 15 and Figure 17As shown, a moving track of the ball center of the first sphere B1 in a direction parallel to the first track 111b is defined as a first sphere axis A1, and a moving track of the ball center of the second sphere B2 in a direction parallel to the third track 113b is defined as a second sphere axis A2. Furthermore, a first connecting line L1 connecting between the first sphere axis A1 and the second sphere axis A2 in a direction perpendicular to the optical axis OL is defined, and a second connecting line L2 connecting between the optical axis OL and the first connecting line L1 while being orthogonal and intersecting the optical axis OL and the first connecting line L1 is defined.

[0164] According to the above definitions, the sixth surface S6b is closer to a center point P1 of the first connecting line L1 than the fifth surface S5b, and the seventh surface S7b is closer to the center point P1 of the first connecting line L1 than the eighth surface S8b. Furthermore, an intersection point of the first connecting line L1 and the second connecting line L2 is an eccentric point P2, wherein the eccentric point P2 is closer to the second sphere axis A2 (i.e., a distance between the eccentric point P2 and the first sphere axis A1 is greater than a distance between the eccentric point P2 and the second sphere axis A2).

[0165] In addition, a distance between the center point P1 of the first connecting line L1 and the second sphere axis A2 is d1, and a distance between the eccentric point P2 and the second sphere axis A2 is d2, which satisfy the following conditions: d1 = 3.01 mm; d2 = 2.38 mm; and d1 / d2 = 1.26.

[0166] The auto-focusing driving assembly 14b is used to drive the lens unit 11b to move relative to the base 12b in a direction parallel to the optical axis OL. In detail, the auto-focusing driving assembly 14b includes a magnet 141b and a coil 142b, and the coil 142b is correspondingly arranged opposite to the magnet 141b. The coil 142b is arranged on the lens unit 11b, and the magnet 141b is arranged on the base 12b.

[0167] Among the soft elements 15b, four of them are arranged between the lens unit 11b and the base 12b, and the other four of them are arranged between the lens unit 11b and the housing 13b, so as to reduce the impact generated by the lens unit 11b colliding with the adjacent elements when moving in a direction parallel to the optical axis OL. In this embodiment, the soft elements 15b arranged between the lens unit 11b and the base 12b are coupled with the base 12b and face the lens unit 11b, and the soft elements 15b arranged between the lens unit 11b and the housing 13b are coupled with the lens unit 11b and face the housing 13b.

[0168] Further, as shown in FIG. 1B, the lens unit 11b is arranged on the base 12b, and the auto-focusing driving assembly 14b is arranged between the lens unit 11b and the base 12b. The auto-focusing driving assembly 14b is used to drive the lens unit 11b to move relative to the base 12b in a direction parallel to the optical axis OL. Figure 17As shown, a third connecting line L3 is defined, connecting the center of the flexible element 15b to the center point P1 of the first connecting line L1. A fourth connecting line L4 is defined, orthogonal to and intersecting the optical axis OL, connecting the optical axis OL to the center point P1 of the first connecting line L1. The angle between the third connecting line L3 and the first connecting line L1 is θa, and the angle between the third connecting line L3 and the fourth connecting line L4 is θb, satisfying the following conditions: θa = 23 degrees; θb = 78 degrees; and θa + θb = 101 degrees.

[0169] The flexible circuit board 17b is coupled to the lens unit 11b, and the coil 142b is disposed on the flexible circuit board 17b. That is, in this embodiment, the coil 142b is disposed on the lens unit 11b through the flexible circuit board 17b coupled to the lens unit 11b.

[0170] like Figure 14 As shown, please refer to the following: Figure 19 ,in Figure 19 Draw Figure 10 A top view schematic diagram of the flexible circuit board, autofocus drive assembly, and base in the camera module. In the second embodiment, the flexible circuit board 17b includes a meandering line M1 with overlapping portions in a direction perpendicular to the optical axis OL, and... Figure 19 From a certain perspective, the meandering line M1 has at least four turning portions UL1 on a plane perpendicular to the optical axis OL, and between these turning portions UL1 are a plurality of straight portions SL1 extending in at least two mutually perpendicular directions. However, the present invention does not... Figure 19 The implementation of the winding M1 line is limited to specific examples. For instance, please refer to... Figure 20 and Figure 21 The diagrams illustrate, respectively, the flexible circuit board, the autofocus drive assembly, and the base in the camera module of the first and second exemplary embodiments of the present invention. Figure 20 and Figure 21 The flexible circuit board 17b, autofocus drive assembly 14b, and base 12b presented in each part are all similar to those described above. Figures 10 to 19 The flexible circuit board 17b, autofocus drive assembly 14b and base 12b are similar, and the same or similar reference numerals are used to represent the same or similar components. The functions and effects of each component are the same as those described above, and will not be repeated here.

[0171] exist Figure 20 In the first exemplary embodiment, the meandering lines M2 of the flexible circuit board 17b have overlapping portions in the direction perpendicular to the optical axis OL, and are... Figure 20In the view of the light axis OL, the meandering line M2 has at least eight curved turns UL2 in a plane perpendicular to the light axis OL, and has a plurality of straight line portions SL2 extending in one direction inclined with respect to the coil 142b between the turns UL2.

[0172] In Figure 21 a second exemplary embodiment, the meandering line M3 of the flexible circuit board 17b has overlapping portions in a direction perpendicular to the light axis OL, and has Figure 21 In the view of the light axis OL, the meandering line M3 has at least two curved turns UL3 in a plane perpendicular to the light axis OL, and a radius of curvature of one of the curved turns UL3 is greater than a radius of curvature of the other of the curved turns UL3.

[0173] For further example, please refer to Figure 22 and Figure 23 wherein Figure 22 a perspective view of a camera module according to a third exemplary embodiment of the present application is shown, and Figure 23 a top view of the camera module of Figure 22 is shown. Figure 22 and Figure 23 The flexible circuit board 17b, the autofocus drive assembly 14b and the base 12b presented in Figures 10 to 19 are similar to the flexible circuit board 17b, the autofocus drive assembly 14b and the base 12b of the aforementioned , and the same or similar elements are denoted by the same or similar reference numerals, and each element has the same or similar functions and effects as the aforementioned, which will not be described here again.

[0174] In Figure 22 and Figure 23 a third exemplary embodiment, the flexible circuit board 17b comprises a folded line F4 (as shown in Figure 22 ) having overlapping portions in a direction parallel to the light axis OL, the folded line F4 has at least three turns UL4 in a direction parallel to the light axis OL, and has a plurality of straight line portions SL4 extending in the same direction between the turns UL4.

[0175] <Third Embodiment>

[0176] Please refer to Figure 24 and Figure 25 wherein Figure 24 a perspective view of one side of an electronic device according to the third embodiment of the present application is shown, and Figure 25 a perspective view of the other side of the electronic device of Figure 24 is shown.

[0177] In this embodiment, the electronic device 200 is a smartphone. The electronic device 200 includes multiple camera modules, a flash module 201, a focus assist module 202, an image signal processor 203, a display module (user interface) 204, and an image software processor (not shown).

[0178] These camera modules include an ultra-wide-angle camera module 200a, a high-resolution camera module 200b, a telephoto camera module 200c, and a telephoto camera module 200d. Camera module 200d includes the imaging lens driving module 1 of the first embodiment of the present invention, but the present invention is not limited thereto. At least one of camera modules 200a, 200b, and 200c may also include the imaging lens driving module of the present invention.

[0179] The ultra-wide-angle camera module 200a has the ability to capture multiple scenes. Figure 26 A schematic diagram illustrating images captured by the ultra-wide-angle camera module 200a.

[0180] The high-resolution camera module 200b features high resolution and low distortion. The high-resolution camera module 200b can further capture… Figure 26 A portion of the image. Figure 27 A schematic diagram illustrating images captured by a high-resolution camera module 200b.

[0181] The telephoto camera module 200c and telephoto camera module 200d have high magnification capabilities. The telephoto camera module 200c or telephoto camera module 200d can further capture... Figure 27 A portion of the image. Figure 28 A schematic diagram illustrating the image captured by telephoto camera module 200c or telephoto camera module 200d.

[0182] When the user photographs a subject, the electronic device 200 uses an ultra-wide-angle camera module 200a, a high-resolution camera module 200b, a telephoto camera module 200c, or a telephoto camera module 200d to focus the light for image capture. It activates the flash module 201 for supplemental lighting and uses the subject distance information provided by the focus assist module 202 for rapid focusing. The image signal processor 203 then performs image optimization processing to further improve the image quality produced by the camera module, while also providing zoom functionality. The focus assist module 202 can employ an infrared or laser focus assist system to achieve rapid focusing. The display module 204 can be a touchscreen with touch functionality, allowing manual adjustment of the shooting angle. This enables switching between different camera modules and utilizes the diverse functions of the image software processor for image capture and processing (or can be performed using a physical shooting button). The image processed by the image software processor is then displayed on the display module 204.

[0183] <Fourth Embodiment>

[0184] Reference is made to Figure 29 which illustrates a perspective view of one side of an electronic device according to the fourth embodiment of the present application.

[0185] In this embodiment, the electronic device 300 is a smartphone. The electronic device 300 comprises camera modules 300a, 300b, 300c, 300d, 300e, 300f, 300g, 300h, 300i, a flash module 301, an image signal processor, a display device, and an image software processor (not shown). The camera modules 300a, 300b, 300c, 300d, 300e, 300f, 300g, 300h, and 300i are arranged on the same side of the electronic device 300, and the display device is arranged on the other side of the electronic device 300. The camera module 300c comprises the imaging lens driving module 1 according to the first embodiment of the present application, but the present application is not limited thereto. At least one of the camera modules 300a, 300b, 300d, 300e, 300f, 300g, 300h, and 300i can also comprise the imaging lens driving module according to the present application.

[0186] Camera module 300a is a telephoto camera module, camera module 300b is a telephoto camera module, camera module 300c is a telephoto camera module, camera module 300d is a telephoto camera module, camera module 300e is a wide-angle camera module, camera module 300f is a wide-angle camera module, camera module 300g is an ultra-wide-angle camera module, camera module 300h is a Time of Flight (ToF) camera module, and camera module 300i is an ultra-wide-angle camera module. Camera module 300i, camera module 300a, camera module 300b, camera module 300c, camera module 300d, camera module 300e, camera module 300f, and camera module 300g of the present embodiment have different angles of view, so that electronic device 300 can provide different magnifications to achieve the effect of optical zoom. In addition, camera module 300a and camera module 300b are telephoto camera modules with a light folding element configuration. In addition, camera module 300h can obtain depth information of an image. The above-mentioned electronic device 300 is exemplified by including a plurality of camera modules 300a, 300b, 300c, 300d, 300e, 300f, 300g, 300h, 300i, but the number and configuration of camera modules are not intended to limit the present application. When a user takes a photograph of a subject, electronic device 300 uses camera module 300a, camera module 300b, camera module 300c, camera module 300d, camera module 300e, camera module 300f, camera module 300g, camera module 300h, or camera module 300i to take an image, activates flash module 301 to provide supplementary light, and performs subsequent processing in a manner similar to the foregoing embodiments, which will not be described again here.

[0187] <5th Embodiment>

[0188] Please refer to Figures 30 to 32 , wherein Figure 30 a perspective view of an electronic device of the 5th embodiment of the present application is shown, Figure 31 a side view of the electronic device of Figure 30 is shown, and Figure 32 a top view of the electronic device of Figure 30 is shown.

[0189] In the present embodiment, electronic device 400 is a car. Electronic device 400 includes a plurality of vehicle camera modules 401, which for example each include an imaging lens driving module of the present application, which can be applied to, for example, a panoramic driving assistance system, a driving recorder, and a reversing imaging device.

[0190] As Figure 30As shown, the camera modules 401 can be disposed around the vehicle body, for example, to capture images around the vehicle, to help identify road conditions outside the vehicle, so as to realize the automatic auxiliary driving function. In addition, the image software processor can also combine the images into a panoramic image to provide the driver with images of the blind area, so that the driver can control the situation around the vehicle, which is beneficial to driving and parking.

[0191] As shown in FIG. 1, the camera modules 401 can be disposed under the left and right rearview mirrors, respectively. The angle of view of the camera modules 401 can be 40 to 90 degrees, to capture image information in the left and right lane ranges. Figure 31

[0192] As shown in FIG. 1, the camera modules 401 can be disposed under the left and right rearview mirrors, respectively. The angle of view of the camera modules 401 can be 40 to 90 degrees, to capture image information in the left and right lane ranges. Figure 32

[0193] The imaging lens driving module of the present application is not limited to be applied to smartphones, panoramic driving assistance systems, driving recorders, and reversing display devices. The imaging lens driving module can also be applied to various mobile focusing systems as needed, and has the characteristics of excellent aberration correction and good imaging quality. For example, the imaging lens driving module can be applied to various electronic devices such as 3D image capture, digital cameras, mobile devices, tablet computers, smart TVs, network monitoring equipment, multi-lens devices, recognition systems, motion game consoles, and wearable devices. The above-mentioned electronic devices are only exemplary to illustrate the practical application examples of the present application, and are not intended to limit the application range of the imaging lens driving module of the present application.

[0194] Although the present application is disclosed with the above-mentioned embodiments, these embodiments are not intended to limit the present application. Any changes and modifications made without departing from the spirit and scope of the present application are within the scope of the present application. The scope of protection of the present application is subject to the appended claims.​​

Claims

1. An imaging lens driving module, characterized in that, Include: A lens unit has an optical axis, the lens unit includes a first track and a third track extending in a direction parallel to the optical axis, the first track includes a second surface, and the third track includes a third surface; A base, wherein the lens unit is disposed relative to the base, the base includes a second track and a fourth track extending in a direction parallel to the optical axis, the second track includes a fifth surface and a sixth surface, the sixth surface and the fifth surface are connected to each other and form an angle, the fourth track includes a seventh surface and an eighth surface, and the eighth surface and the seventh surface are connected to each other and form an angle. An outer shell, coupled to the base and jointly defining an internal space for accommodating the lens unit, wherein the first track and the second track are correspondingly arranged to accommodate at least one first sphere, and the third track and the fourth track are correspondingly arranged to accommodate at least one second sphere. The at least one first sphere and the at least one second sphere are used to provide the lens unit with a degree of freedom of movement in a direction parallel to the optical axis, and the total number of the at least one first sphere and the at least one second sphere is at least three. An autofocus drive assembly is provided for driving the lens unit to move relative to the base in a direction parallel to the optical axis, wherein the autofocus drive assembly includes at least one magnet and at least one coil, the at least one coil being disposed opposite to the at least one magnet, and one of the at least one magnet and the at least one coil being disposed on the lens unit. as well as At least one flexible element is disposed between the lens unit and the base and / or between the lens unit and the housing, and the at least one flexible element can be deformed to reduce the impact generated by the lens unit colliding with adjacent elements when it moves in a direction parallel to the optical axis; Wherein, the movement trajectory of the center of the at least one first sphere along a direction parallel to the first track is defined as a first sphere axis, the movement trajectory of the center of the at least one second sphere along a direction parallel to the third track is defined as a second sphere axis, and a first connecting line is defined between the first sphere axis and the second sphere axis in a direction perpendicular to the optical axis; Wherein, the sixth surface is closer to a center point of the first connecting line than the fifth surface, and the seventh surface is closer to the center point of the first connecting line than the eighth surface; Wherein, the second surface, the fifth surface and the sixth surface each have only one contact point with the at least one first sphere, and the third surface, the seventh surface and the eighth surface each have only one contact point with the at least one second sphere; The angle between the sixth surface and the seventh surface is θ. 67 And the angle between the fifth surface and the eighth surface is θ 58 It satisfies the following conditions: |θ 67 -π|≤|θ 58 -π|; and The sixth surface and the seventh surface are parallel to each other.

2. The imaging lens driving module according to claim 1, characterized in that, The at least one flexible element is coupled to the base, and the at least one flexible element faces the lens unit.

3. The imaging lens driving module according to claim 1, characterized in that, The at least one flexible element is coupled to the lens unit, and the at least one flexible element faces the housing.

4. The imaging lens driving module according to claim 1, characterized in that, The at least one flexible element comprises at least two flexible elements, and the at least two flexible elements are respectively disposed between the lens unit and the base and between the lens unit and the housing.

5. The imaging lens driving module according to claim 1, characterized in that, The total number of the at least one flexible element is eight.

6. The imaging lens driving module according to claim 1, characterized in that, The at least one magnet is disposed on the lens unit, the at least one coil is disposed on the base, and the at least one coil is disposed corresponding to the at least one magnet.

7. The imaging lens driving module according to claim 1, characterized in that, The at least one coil is disposed on the lens unit, the at least one magnet is disposed on the base, and the at least one magnet is disposed corresponding to the at least one coil.

8. The imaging lens driving module according to claim 7, characterized in that, Also includes: A flexible circuit board is coupled to the lens unit.

9. The imaging lens driving module according to claim 8, characterized in that, The at least one coil is disposed on the flexible circuit board, and the flexible circuit board includes a meandering line with overlapping portions in a direction perpendicular to the optical axis.

10. The imaging lens driving module according to claim 8, characterized in that, The at least one coil is disposed on the flexible circuit board, and the flexible circuit board includes a folded line with overlapping portions in a direction parallel to the optical axis.

11. The imaging lens driving module according to claim 1, characterized in that, The at least one first sphere comprises at least two first spheres, and the at least one second sphere comprises at least two second spheres.

12. The imaging lens driving module according to claim 1, characterized in that, Define a second connecting line that is orthogonal to and intersects both the optical axis and the first connecting line, and connects the optical axis and the first connecting line. The intersection of the first connecting line and the second connecting line is an eccentric point. The distance between the center point of the first connecting line and the second spherical axis is d1, and the distance between the eccentric point and the second spherical axis is d2, satisfying the following conditions: 1.1≤d1 / d2<4.

9.

13. The imaging lens driving module according to claim 1, characterized in that, Define a third connecting line connecting the center of the at least one flexible element to the center point of the first connecting line, and define a fourth connecting line orthogonal to and intersecting the optical axis and connecting the optical axis to the center point. The angle between the third connecting line and the first connecting line is θa, and the angle between the third connecting line and the fourth connecting line is θb, satisfying the following conditions: θa+θb≠90 degrees.

14. The imaging lens driving module according to claim 1, characterized in that, The angle between the fifth surface and the sixth surface is θ. 56 And the angle between the seventh surface and the eighth surface is θ 78 It satisfies the following conditions: π / 2≤θ 56 <p; π / 2≤θ 78 <p.

15. The imaging lens driving module according to claim 14, characterized in that, The angle between the fifth surface and the sixth surface is θ. 56 And the angle between the seventh surface and the eighth surface is θ 78 It satisfies the following conditions: 98 degrees ≤ θ 56 <π;hereafter 98 degrees ≤ θ 78 <π.

16. The imaging lens driving module according to claim 1, characterized in that, The first track further includes a first surface, the first surface and the second surface are connected to each other and form an angle, and the third track further includes a fourth surface, the fourth surface and the third surface are connected to each other and form an angle; Wherein, a gap exists between the first surface and the at least one first sphere and / or a gap exists between the fourth surface and the at least one second sphere; and The first surface and the sixth surface are parallel to each other, and the fourth surface and the seventh surface are parallel to each other.

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

18. An electronic device, characterized in that, Include: The camera module according to claim 17.

19. An imaging lens driving module, characterized in that, Include: A lens unit has an optical axis, the lens unit includes a first track and a third track extending in a direction parallel to the optical axis, the first track includes a second surface, and the third track includes a third surface; A base, wherein the lens unit is disposed relative to the base, the base includes a second track and a fourth track extending in a direction parallel to the optical axis, the second track includes a fifth surface and a sixth surface, the sixth surface and the fifth surface are connected to each other and form an angle, the fourth track includes a seventh surface and an eighth surface, and the eighth surface and the seventh surface are connected to each other and form an angle. An outer shell, coupled to the base and jointly defining an internal space for accommodating the lens unit, wherein the first track and the second track are correspondingly arranged to accommodate at least one first sphere, and the third track and the fourth track are correspondingly arranged to accommodate at least one second sphere. The at least one first sphere and the at least one second sphere are used to provide the lens unit with a degree of freedom of movement in a direction parallel to the optical axis, and the total number of the at least one first sphere and the at least one second sphere is at least three. An autofocus drive assembly is provided for driving the lens unit to move relative to the base in a direction parallel to the optical axis, wherein the autofocus drive assembly includes at least one magnet and at least one coil, the at least one coil being disposed opposite to the at least one magnet, and one of the at least one magnet and the at least one coil being disposed on the lens unit. as well as At least one flexible element is disposed between the lens unit and the base and / or between the lens unit and the housing, and the at least one flexible element can be deformed to reduce the impact generated by the lens unit colliding with adjacent elements when it moves in a direction parallel to the optical axis; Wherein, the second surface, the fifth surface, and the sixth surface each have only one contact point with the at least one first sphere, and the third surface, the seventh surface, and the eighth surface each have only one contact point with the at least one second sphere; and The angle between the sixth surface and the seventh surface is θ. 67 And the angle between the fifth surface and the eighth surface is θ 58 It satisfies the following conditions: |θ 67 -π|≤|θ 58 -p|。 20. The imaging lens driving module according to claim 19, characterized in that, The at least one flexible element is coupled to the base, and the at least one flexible element faces the lens unit.

21. The imaging lens driving module according to claim 19, characterized in that, The at least one flexible element is coupled to the lens unit, and the at least one flexible element faces the housing.

22. The imaging lens driving module according to claim 19, characterized in that, The at least one flexible element comprises at least two flexible elements, and the at least two flexible elements are respectively disposed between the lens unit and the base and between the lens unit and the housing.

23. The imaging lens driving module according to claim 19, characterized in that, The total number of the at least one flexible element is eight.

24. The imaging lens driving module according to claim 19, characterized in that, The at least one magnet is disposed on the lens unit, the at least one coil is disposed on the base, and the at least one coil is disposed corresponding to the at least one magnet.

25. The imaging lens driving module according to claim 19, characterized in that, The at least one coil is disposed on the lens unit, the at least one magnet is disposed on the base, and the at least one magnet is disposed corresponding to the at least one coil.

26. The imaging lens driving module according to claim 25, characterized in that, Also includes: A flexible circuit board is coupled to the lens unit.

27. The imaging lens driving module according to claim 26, characterized in that, The at least one coil is disposed on the flexible circuit board, and the flexible circuit board includes a meandering line with overlapping portions in a direction perpendicular to the optical axis.

28. The imaging lens driving module according to claim 26, characterized in that, The at least one coil is disposed on the flexible circuit board, and the flexible circuit board includes a folded line with overlapping portions in a direction parallel to the optical axis.

29. The imaging lens driving module according to claim 19, characterized in that, The at least one first sphere comprises at least two first spheres, and the at least one second sphere comprises at least two second spheres.

30. The imaging lens driving module according to claim 19, characterized in that, The trajectory of the center of the at least one first sphere moving along a direction parallel to the first track is defined as a first sphere axis, and the trajectory of the center of the at least one second sphere moving along a direction parallel to the third track is defined as a second sphere axis. Here, a first connecting line is defined in a direction perpendicular to the optical axis, connecting the first spherical axis and the second spherical axis; a second connecting line is defined that is orthogonal to and intersects both the optical axis and the first connecting line, connecting the optical axis and the first connecting line; the intersection of the first connecting line and the second connecting line is an eccentric point; the distance between a center point of the first connecting line and the second spherical axis is d1, and the distance between the eccentric point and the second spherical axis is d2, satisfying the following conditions: 1.1≤d1 / d2<4.

9.

31. The imaging lens driving module according to claim 19, characterized in that, The trajectory of the center of the at least one first sphere moving along a direction parallel to the first track is defined as a first sphere axis, and the trajectory of the center of the at least one second sphere moving along a direction parallel to the third track is defined as a second sphere axis. Wherein, a first connecting line is defined in a direction perpendicular to the optical axis, connecting the first spherical axis and the second spherical axis; a third connecting line is defined connecting the center of the at least one flexible element and a center point of the first connecting line; a fourth connecting line is defined orthogonal to and intersecting the optical axis, connecting the optical axis and the center point; the angle between the third connecting line and the first connecting line is θa, and the angle between the third connecting line and the fourth connecting line is θb, satisfying the following conditions: θa+θb≠90 degrees.

32. The imaging lens driving module according to claim 19, characterized in that, The angle between the fifth surface and the sixth surface is θ. 56 And the angle between the seventh surface and the eighth surface is θ 78 It satisfies the following conditions: π / 2≤θ 56 <p; π / 2≤θ 78 <p.

33. The imaging lens driving module according to claim 32, characterized in that, The angle between the fifth surface and the sixth surface is θ. 56 And the angle between the seventh surface and the eighth surface is θ 78 It satisfies the following conditions: 98 degrees ≤ θ 56 <π;hereafter 98 degrees ≤ θ 78 <π.

34. The imaging lens driving module according to claim 19, characterized in that, The first track further includes a first surface, the first surface and the second surface are connected to each other and form an angle, and the third track further includes a fourth surface, the fourth surface and the third surface are connected to each other and form an angle; The first surface and the sixth surface are parallel to each other, and the fourth surface and the seventh surface are parallel to each other.

35. A camera module, characterized in that, Include: The imaging lens driving module according to claim 19; and An electronic photosensitive element is disposed on an imaging surface of the imaging lens driving module.

36. An electronic device, characterized in that, Include: The camera module according to claim 35.

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