Drive module for an imaging lens, camera module and electronic device
The drive module for an imaging lens, featuring a lens unit, base, cover, and flexible components, addresses motion stability issues in optical systems by using guides, balls, and a deformable component to enhance stability and imaging quality in modern electronic devices.
Patent Information
- Application Number
- DE202025102532
- Authority / Receiving Office
- DE · DE
- Patent Type
- Utility models
- Current Assignee / Owner
- Filing Date
- 2025-05-08
- Publication Date
- 2025-06-26
- Estimated Expiration
- 2035-05-31
AI Technical Summary
Conventional optical systems struggle to meet the high optical quality requirements of modern electronic devices due to inadequate motion stability during focusing, particularly in multifunctional devices with diverse applications.
A drive module for an imaging lens comprising a lens unit, base, cover, autofocus drive assembly, and flexible components, utilizing guides and balls for movement parallel to the optical axis, with a deformable flexible component to absorb impacts and ensure stability, and an autofocus drive assembly with magnets and coils for precise movement.
The solution enhances the stability and longevity of the lens unit by reducing impacts during movement, thereby improving imaging quality and meeting the stringent optical quality demands of modern electronic devices.
Smart Images
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Abstract
Description
BACKGROUNDTechnical FieldThe present disclosure relates to an imaging lens driving module, a camera module, and an electronic device, and more particularly, to an imaging lens driving module and a camera module that can be used in an electronic device.Description of Related ArtAs semiconductor fabrication technology has evolved, image sensor performance has been improved and its pixel size has been reduced. Therefore, high image quality is one of the indispensable features of an optical system today. Moreover, due to the rapid technological migration, electronic devices equipped with optical systems tend to be multifunctional for various applications, thereby increasing the demands on the functionality of the optical systems.However, in recent years, conventional optical systems have had difficulty in meeting the high demands on the optical quality of diversified electronic products. In particular, the stability of movement of conventional optical systems during the focusing process may not meet the ever more stringent market requirements for optical quality. Therefore, the improvement of mechanisms used in mobile optical systems to meet the high specifications of electronic devices of today has become a decisive issue in the relevant fields.SUMMARYAccording to an aspect of the present disclosure, a drive module for an imaging lens includes a lens unit, a base, a cover, an autofocus drive assembly, and at least one flexible component. The lens unit has an optical axis and includes a first guide and a third guide extending in a direction parallel to the optical axis, wherein the first guide includes a second surface and the third guide includes a third surface. The lens unit is disposed relative to the base. The base includes a second guide and a fourth guide extending in a direction parallel to the optical axis, the second guide including a fifth surface and a sixth surface, the sixth surface and the fifth surface being joined and forming an angle therebetween, the fourth guide including a seventh surface and an eighth surface, and the eighth surface and the seventh surface being joined and forming an angle therebetween. The cover is connected to the base and forms an inner space with the base, and the inner space is configured to receive the lens unit. The first guide and the second guide are respectively arranged to receive at least one first ball, and the third guide and the fourth guide are respectively arranged to receive at least one second ball, thereby imparting a degree of freedom for movement in a direction parallel to the optical axis. The total number of the at least one first ball and the at least one second ball is at least three. The autofocus drive assembly is configured to drive the lens assembly to move relative to the base in a direction parallel to the optical axis. The autofocus drive arrangement comprises at least one magnet and at least one coil, wherein the coil is correspondingly arranged so as to face the magnet and one of the magnet and the coil is arranged on the lens arrangement. The flexible component is disposed between the lens unit and the base and / or between the lens unit and the cover, and the flexible component is deformable to reduce the impact caused by abutment of the lens unit with adjacent components when the lens unit moves in a direction parallel to the optical axis. Preferably, the moving path of the center of the first ball along a direction parallel to the first guide is defined as a first ball axis, the moving path of the center of the second ball along a direction parallel to the third guide is defined as a second ball axis, and a first connecting line is defined as a line connected between the first ball axis and the second ball axis in a direction perpendicular to the optical axis. Preferably, the sixth surface is located closer to the center of the first connecting line than the fifth surface, and the seventh surface is located closer to the center of the first connecting line than the eighth surface. The second surface, the fifth surface, and the sixth surface each have only one contact point with the first ball, and the third surface, the seventh surface, and the eighth surface each have only one contact point with the second ball. When an angle between the sixth surface and the seventh surface θ is 67 and an angle between the fifth surface and the eighth surface θ is 58 the following condition is satisfied: |θ 67- π|≤|θ 58- π|. Preferably, the sixth surface and the seventh surface are parallel to each other.According to another aspect of the present disclosure, a drive module for an imaging lens includes a lens unit, a base, a cover, an autofocus drive assembly, and at least one flexible component. The lens unit has an optical axis and includes a first guide and a third guide extending in a direction parallel to the optical axis, wherein the first guide includes a second surface and the third guide includes a third surface. The lens unit is disposed relative to the base. The base includes a second guide and a fourth guide extending in a direction parallel to the optical axis, the second guide including a fifth surface and a sixth surface, the sixth surface and the fifth surface being joined and forming an angle therebetween, the fourth guide including a seventh surface and an eighth surface, and the eighth surface and the seventh surface being joined and forming an angle therebetween. The cover is connected to the base and forms an inner space with the base, and the inner space is configured to receive the lens unit. The first guide and the second guide are respectively arranged to receive at least one first ball, and the third guide and the fourth guide are respectively arranged to receive at least one second ball, thereby giving the lens unit a degree of freedom for movement in a direction parallel to the optical axis. The total number of the at least one first ball and the at least one second ball is at least three. The autofocus driving arrangement is configured to drive the lens unit to move relative to the base in a direction parallel to the optical axis. The autofocus driving arrangement includes at least one magnet and at least one coil, the coil being respectively arranged to face the magnet, and one of the magnet and the coil being arranged on the lens unit. The flexible component is disposed between the lens unit and the base and / or between the lens unit and the cover, and the flexible component is deformable to reduce the impact caused by abutment of the lens unit with adjacent components 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 ball, and the third surface, the seventh surface, and the eighth surface each have only one contact point with the second ball. When an angle between the sixth surface and the seventh surface θ is 67 and an angle between the fifth surface and the eighth surface θ is 58 the following condition is satisfied: |θ 67- π|≤|θ 58- π|.According to another aspect of the present disclosure, a camera module includes any one of the aforementioned imaging lens driving modules, and an image sensor disposed on an image surface of the imaging lens driving module.According to another aspect of the present disclosure, an electronic device includes the above-mentioned camera module.BRIEF DESCRIPTION OF THE DRAWINGSThe disclosure may be better understood from the following detailed description of the embodiments with reference to the accompanying drawings: FIG. 1 is a top view of a camera module according to the first embodiment of the present disclosure; FIG. 2 is a side view of the camera module in FIG. 1 ; FIG. 3 is an exploded view of the camera module in FIG. 1 ; FIG. 4 is another exploded view of the camera module in FIG. 1 ; FIG. 5 is a cross-sectional view of the camera module taken along line 5- 5 in FIG. 1 ; FIG. 6 is a cross-sectional view of the camera module taken along line 6- 6 in FIG. 2 ; FIG. 7 is a top view of the camera module in FIG. 1 after rotation with a cover omitted; FIG. 8 is an enlarged view of the portion EL 1 in FIG. 7 ; FIG. 9 is a schematic view of the positional relationship between guides and balls in the camera module of FIG. 7 ; FIG. 10 is a top view of a camera module according to the second embodiment of the present disclosure; FIG. 11 is a side view of the camera module in FIG. 10 ; FIG. 12 is an exploded view of the camera module in FIG. 10 ; FIG. 13 is another exploded view of the camera module in FIG. 10 ; FIG. 14 is still another exploded view of the camera module in FIG. 10 ; FIG. 15 is a cross-sectional view of the camera module taken along line 15- 15 in FIG. 10 ; FIG. 16 is a cross-sectional view of the camera module taken along line 16- 16 in FIG. 11 ; FIG. 17 is a top view of the camera module in FIG. 10 after rotation with a cover omitted; FIG. 18 is a schematic view of the positional relationship between guides and balls in the camera module of FIG. 17 ; FIG. 19 is a top view of a flexible circuit board, an autofocus drive assembly, and a base in the camera module of FIG. 10 ; FIG. 20 is a top view of a flexible circuit board, an autofocus drive assembly, and a base in a camera module according to a first exemplary configuration of the present disclosure; FIG. 21 is a top view of a flexible circuit board, an autofocus drive assembly, and a base in a camera module according to a second exemplary configuration of the present disclosure; FIG. 22 is a perspective view of a flexible circuit board, an autofocus driving assembly, and a base in a camera module according to a third exemplary configuration of the present disclosure; FIG. 23 is a top view of the flexible circuit board, autofocus drive assembly, and base in the camera module of FIG. 22 ; FIG. 24 is a perspective view of an electronic device according to the third embodiment of the present disclosure; FIG. 25 is another perspective view of the electronic device in FIG. 24 ; FIG. 26 is a diagram of an image captured by an ultra wide angle camera module; FIG. 27 is a diagram of an image captured by a high pixel camera module; FIG. 28 is a diagram of an image captured by a tele camera module; FIG. 29 is a perspective view of an electronic device according to the fourth embodiment of the present disclosure; FIG. 30 is a perspective view of an electronic device according to the fifth embodiment of the present disclosure; FIG. 31 is a side view of the electronic device in FIG. 30 ; and FIG. 32 is a top view of the electronic device in FIG. 30.DETAILED DESCRIPTIONIn the following detailed description, for purposes of explanation, numerous specific details are set forth in order to provide a thorough understanding of the disclosed embodiments. It will be apparent, however, that one or more embodiments may be practiced without these specific details. In other instances, well-known structures and devices are schematically illustrated to simplify the drawing.The present disclosure relates to a drive module for an imaging lens. The imaging lens driving module includes a lens unit, a base, a cover, an autofocus driving assembly, and at least one flexible component.The lens unit is disposed relative to the base. The cover is connected to the base and forms an inner space with the base, and the inner space is configured to receive the lens unit.The lens unit has an optical axis and includes a first guide and a third guide extending in a direction parallel to the optical axis. The first guide includes a second surface and the third guide includes a third surface. The base includes a second guide and a fourth guide extending in a direction parallel to the optical axis. The second guide includes a fifth surface and a sixth surface, and the sixth surface and the fifth surface are joined and form an angle therebetween. The fourth guide 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 therebetween.The first guide and the second guide are respectively arranged to receive at least one first ball, and the third guide and the fourth guide are respectively arranged to receive at least one second ball configured to provide the lens unit with a degree of freedom for movement in a direction parallel to the optical axis. In other words, the first guide and the second guide are arranged correspondingly to each other, and the third guide and the fourth guide are arranged correspondingly to each other, thereby forming two spaces each configured to receive the at least one first ball and the at least one second ball. Moreover, the total number of the first and second balls is at least three. For example, in equipment of the present disclosure, when at least two first balls and at least two second balls are respectively provided, the stability of the lens unit during the movement can be improved. However, in another configuration of the present disclosure, when the total space of the driving module for an imaging lens is limited, the total number of the first balls or the second balls may be one and the total number of the other balls, i.e., the first balls or the second balls, may be at least two, but the present disclosure is not limited thereto.The autofocus driving arrangement is configured to move the lens unit in a direction parallel to the optical axis relative to the base. In particular, the autofocus drive arrangement comprises at least one magnet and at least one coil. The coil is respectively disposed to face the magnet, and one of the magnet and the coil is disposed on the lens unit. For example, in a configuration of the present disclosure, one of the magnet and the coil is disposed on the lens array, and the other of the magnet and the coil is disposed on the base. In addition, the present disclosure is not limited to the number of magnets and coils. For example, in a configuration of the present disclosure, the number of magnets is one and the number of coils is one, and the one coil is disposed to face the magnet, respectively. In another configuration of the present disclosure, the number of magnets and the number of coils are plural, and the coils are arranged opposite to the magnets, respectively.The flexible component is disposed between the lens unit and the base and / or between the lens unit and the cover, and the flexible component is deformable to reduce the impact caused by abutment of the lens unit with adjacent components when the lens unit moves in a direction parallel to the optical axis. Moreover, the flexible component may be made of, for example, a rubber material or a silicone material, but the present disclosure is not limited thereto. The flexible component disposed between the lens unit and the base and / or between the lens unit and the cover refers to the flexible component disposed between at least one of the lens unit and the base and the lens unit and the cover.The second surface of the first guide, the fifth surface, and the sixth surface of the second guide each have only one contact point with the first ball, and the third surface of the third guide, the seventh surface, and the eighth surface of the fourth guide each have only one contact point with the second ball.When an angle between the sixth surface and the seventh surface θ is 67 and an angle between the fifth surface and the eighth surface θ is 58 the following condition is satisfied: |θ 67- π|≤|θ 58- π|. See FIG. 9 which shows a schematic view of θ 58 and θ 67 according to the first embodiment of the present disclosure.According to the present disclosure, by providing the flexible component between the lens unit and the base and / or between the lens unit and the cover, the impact caused by abutment of the lens unit with adjacent components can be reduced, thereby ensuring the stability of the lens unit and extending its life. In addition, the configuration of the guides and the balls ensures the stability of the lens unit during the autofocus movement, thereby improving the imaging quality.The moving path of the center of the first ball along a direction parallel to the first guide is defined as a first ball axis, the moving path of the center of the second ball along a direction parallel to the third guide is defined as a second ball axis, and a first connecting line is defined as a line connected between the first ball axis and the second ball axis in a direction perpendicular to the optical axis. Moreover, the first ball axis and the second ball axis are two different ball axes, both of which are substantially parallel to the optical axis. The term "substantially parallel to the optical axis" refers to the inclination angle of each of these two spherical axes relative to the optical axis not exceeding 3 degrees. See FIGS. 5 and 7 which show schematic views of the first ball axis A 1, the second ball axis A 2, and the first connecting line L 1, respectively, according to the first embodiment of the present disclosure.The sixth surface may be closer to a center of the first connecting line than the fifth surface, and the seventh surface may be closer to the center of the first connecting line than the eighth surface. In addition, the sixth surface and the seventh surface may be parallel to each other. The fact that the sixth surface and the seventh surface are parallel to one another means that the sixth surface and the seventh surface are substantially parallel, wherein the angle of inclination between the two surfaces does not exceed 3 degrees. See FIGS. 7 and 9, which are respectively schematic views showing the positional relationship between the center point P 1 of the first connecting line L 1 and the fifth surface S 5, the sixth surface S 6, the seventh surface S 7, and the eighth surface S 8 according to the first embodiment of the present disclosure.In a configuration of the present disclosure, the flexible component may be connected to the base, and the flexible component may face the lens unit. Therefore, by arranging the flexible component as described above, the impact caused by abutment of the lens unit with adjacent components can be reduced, thereby ensuring the stability of the lens unit and extending its life. Moreover, the flexible component connected to the base may serve as a buffer between the base and the lens unit.In a configuration of the present disclosure, the flexible component may be connected to the lens unit, and the flexible component may face the cover. Therefore, by arranging the flexible component as described above, the impact caused by abutment of the lens unit with adjacent components can be reduced, thereby ensuring the stability of the lens unit and extending its life. Moreover, the flexible component connected to the lens unit may serve as a buffer between the lens unit and the cover.The flexible component may include at least two flexible components, and the at least two flexible components may be respectively disposed between the lens unit and the base and between the lens unit and the cover. Therefore, by arranging the flexible components as described above, the impact caused by abutment of the lens unit with adjacent components can be reduced, thereby ensuring the stability of the lens unit and extending its life. Moreover, the flexible components disposed between the lens unit and the base and between the lens unit and the cover can reduce the impact caused by abutment of the lens unit with the base and the cover when the lens unit moves in the optical axis direction.The total number of flexible components may be eight. Therefore, appropriate arrangement of the number of flexible components can reduce the impact caused by abutment of the lens unit with adjacent components, thereby ensuring stability of the lens unit and extending its life.In a configuration of the present disclosure, the magnet may be disposed on the lens unit, the coil may be disposed on the base, and the coil is disposed to face the magnet, respectively. Therefore, the magnet and the coil can be disposed at the optimum driving positions, which is advantageous for enhancing the design flexibility of the autofocus driving arrangement. With this configuration, the magnet can move together with the lens assembly in a direction parallel to the optical axis while the coil remains fixed on the base.In a configuration of the present disclosure, the coil may be disposed on the lens unit, the magnet may be disposed on the base, and the magnet is disposed to face the coil, respectively. Therefore, the coil and the magnet can be disposed at optimum driving positions, which is advantageous for enhancing design flexibility of the autofocus driving arrangement. With this configuration, the coil can move in a direction parallel to the optical axis together with the lens unit while the magnet remains fixed to the base.According to the present disclosure, the imaging lens driving module may further include a flexible circuit board, and the flexible circuit board may be connected to the lens unit. Therefore, by utilizing the flexibility characteristics of the flexible circuit board, the flexible circuit board has sufficient flexibility to follow the autofocus movement of the lens unit, thereby satisfying the driving requirements in all directions. Moreover, the flexible circuit board may be provided with appropriate wiring to allow movement together with the lens unit in the direction parallel to the optical axis.In a configuration of the present disclosure, the coil may be disposed on the flexible circuit board, and the flexible circuit board may include a meandering circuit having portions overlapping in a direction perpendicular to the optical axis. Therefore, the design flexibility of the flexible circuit board can be increased, whereby the flexible circuit board is sufficient to meet the driving requirements in all directions. Moreover, the flexible circuit board can move with the lens unit during the autofocus operation, thereby improving its flexibility by the meandering circuit, but the present disclosure is not limited thereto.In a configuration of the present disclosure, the coil may be disposed on the flexible circuit board, and the flexible circuit board may include a folding circuit having portions overlapping in a direction parallel to the optical axis. Therefore, the design flexibility of the flexible circuit board can be increased, whereby the flexible circuit board is sufficient to meet the driving requirements in all directions. Moreover, the flexible circuit board can move with the lens unit during the autofocus operation, thereby increasing its flexibility by the folding circuit, but the present disclosure is not limited thereto.The at least one first ball may include at least two first balls, and the at least one second ball may include at least two second balls. In other words, the number of the first balls may be at least two, and the number of the second balls may be at least two. Therefore, appropriate arrangement of the number of balls can improve stability of the lens unit during movement.According to the present disclosure, a second connecting line is defined as a line that is orthogonal to and intersects the optical axis and the first connecting line and is connected between the optical axis and the first connecting line. An intersection of the first connecting line and the second connecting line is an off-center point. When a distance between the center of the first connecting line and the second spherical axis is d 1 and a distance between the off-center point and the second spherical axis is d 2, the following condition may be satisfied: 1.1≤d 1 / d 2<4.9. Therefore, by the off-center configuration, the imaging lens driving module may be disposed at the corner of a cellular phone screen, thereby improving the utilization of the internal space of the cellular phone. Moreover, the off-center point and the center point are located at two different positions, the off-center point being closer to one of the ball axes. See FIG. 7 which shows a schematic view of the first connecting line L 1 and the center point P 1 thereof, the second connecting line L 2, the off-center point P 2, and d 1 and d 2 according to the first embodiment of the present disclosure.According to the present disclosure, a third joint line is defined as a line connected between the center of the flexible component and the center of the first joint line, and a fourth joint line is defined as a line orthogonal to and intersecting the optical axis and connected between the optical axis and the center of the first joint line. When an angle between the third connection line and the first connection line is θa and an angle between the third connection line and the fourth connection line is θb, the following condition may be satisfied: θa+θb≠90 degrees. Therefore, by the eccentric configuration, the imaging lens driving module can be disposed at the corner of a mobile phone screen, thereby improving the utilization of the internal space of the mobile phone. For further explanation, θamay also denote an angle between the third connecting line and a portion of the first connecting line that is located between the center point and the ball axis that is farthest from the off-center point in a direction parallel to the first connecting line. See FIG. 7 which shows a schematic view of the first connecting line L 1 and the center point P 1 thereof, the third connecting line L 3, the fourth connecting line L 4, and θa and θb according to the first embodiment of the present disclosure.When an angle between the fifth surface and the sixth surface of the second guide θ is 56 the following condition may be satisfied: π / 2≤θ 56< π. Therefore, the design flexibility of the guide can be increased, whereby the guide is suitable for various driving means. Moreover, the following condition may also be satisfied: 98 degrees ≤ θ 56< π. Moreover, the corner formed between the fifth surface and the sixth surface may be either a sharp corner or a rounded corner, but the present disclosure is not limited thereto. See FIG. 9 which shows a schematic view of θ 56 according to the first embodiment of the present disclosure.When an angle between the seventh surface and the eighth surface of the fourth guide θ is 78 the following condition may be satisfied: π / 2≤θ 78< π. Therefore, the design flexibility of the guide can be increased, whereby the guide is suitable for various driving means. Moreover, the following condition may also be satisfied: 98 degrees ≤ θ 78< π. Moreover, the angle between the seventh surface and the eighth surface may be formed as either an acute angle or a rounded angle, but the present disclosure is not limited thereto. See FIG. 9 which shows a schematic view of θ 78 according to the first embodiment of the present disclosure.The first guide may further include a first surface, and the first surface and the second surface may be joined to each other and form an angle therebetween. In addition, the third guide may further include a fourth surface, and the fourth surface and the third surface may be connected and form an angle therebetween. There may be a gap between the first surface and the first ball and / or between the fourth surface and the second ball; in other words, there may be a gap between at least one set of the first surface and the first ball and the fourth surface and the second ball. The first surface and the sixth surface may be parallel to each other, and the fourth surface and the seventh surface may be parallel to each other. Therefore, the gap or gaps can be used to adjust manufacturing accuracy, thereby improving feasibility of mass production. In a configuration of the present disclosure, a gap may be present between the first surface and the first ball, and a gap may also be present between the fourth surface and the second ball, but the present disclosure is not limited thereto.According to the present disclosure, a camera module is provided. The camera module includes an image sensor and the aforementioned imaging lens driving module, and the image sensor is disposed on an image surface of the imaging lens driving module.According to the present disclosure, an electronic device is provided. The electronic device comprises the aforementioned camera module.According to the present disclosure, the aforementioned features and conditions may be used in various combinations to achieve respective effects.According to the above description of the present disclosure, the following specific embodiments are provided for further explanation.1. EmbodimentFIG. 1 is a top view of a camera module according to the first embodiment of the present disclosure, FIG. 2 is a side view of the camera module in FIG. 1, FIG. 3 is an exploded view of the camera module in FIG. 1, FIG. 4 is another exploded view of the camera module in FIG. 1, FIG. 5 is a sectional view of the camera module taken along line 5- 5 in FIG. 1, FIG. 6 is a cross-sectional view of the camera module taken along line 6- 6 in FIG. 2, FIG. 7 is a top view of the camera module in FIG. 1 after rotation with a cover omitted, FIG. 8 is an enlarged view of portion EL 1 in FIG. 7, FIG. 9 is a schematic view of the positional relationship between guides and balls in the camera module of FIG. 7.In this embodiment, a camera module 9 is provided. The camera module 9 includes an imaging lens driving module 1 and an image sensor 8, the image sensor 8 being disposed on an image surface IMG of the imaging lens driving module 1.The imaging lens driving module 1 includes a lens unit 11, a base 12, a cover 13, an autofocus driving assembly 14, and eight flexible components 15.The lens unit 11 is disposed relative to the base 12, and the cover 13 is connected to the base 12 and forms an internal space with the base 12 (the reference numeral thereof is omitted). The internal space is configured to house the lens unit 11.The lens unit 11 has an optical axis OL, and the lens unit 11 includes a first guide 111 and a third guide 113 extending in a direction parallel to the optical axis OL. As shown in FIGS. 8 and 9, the first guide 111 includes a first surface S 1 and a second surface S 2, and the second surface S 2 and the first surface S 1 are joined and form an angle therebetween. The third guide 113 includes a third surface S 3 and a fourth surface S 4, and the fourth surface S 4 and the third surface S 3 are connected and form an angle therebetween.The base 12 includes a second guide 122 and a fourth guide 124 extending in a direction parallel to the optical axis OL. As shown in FIGS. 8 and 9, the second guide 122 includes a fifth surface S 5 and a sixth surface S 6, and the sixth surface S 6 is connected to the fifth surface S 5 and forms an angle therebetween. The fourth guide 124 includes a seventh surface S 7 and an eighth surface S 8, and the eighth surface S 8 and the seventh surface S 7 are connected and form an angle therebetween.The first guide 111 and the second guide 122 are respectively disposed to receive three first balls B 1, and the third guide 113 and the fourth guide 124 are respectively disposed to receive three second balls B 2, thereby giving a degree of freedom to the lens unit 11 for movement in a direction parallel to the optical axis OL.As shown in FIGS. 7 to 9, there is a gap G 1 between the first surface S 1 and the first ball B 1 and a gap G 1 between the fourth surface S 4 and the second ball B 2. In addition, the first surface S 1 of the first guide 111 is parallel to the sixth surface S 6 of the second guide 122, the fourth surface S 4 of the third guide 113 is parallel to the seventh surface S 7 of the fourth guide 124, and the sixth surface S 6 of the second guide 122 is parallel to the seventh surface S 7 of the fourth guide 124.As shown in FIG. 9, each of the first balls B 1 has only one contact point C 1 with the second surface S 2, only one contact point C 1 with the fifth surface S 5, and only one contact point C 1 with the sixth surface S 6. Similarly, each of the second balls B 2 has only one contact point C 1 with the third surface S 3, only one contact point C 1 with the seventh surface S 7, and only one contact point C 1 with the eighth surface S 8.When an angle between the sixth surface S 6 and the seventh surface S 7 is θ 67 and an angle between the fifth surface S 5 and the eighth surface S 8 is θ 58 the following conditions are satisfied: θ 67= 180 degrees; θ 58= 60 degrees; and |θ 67- π|<|θ 58- π|.When an angle between the fifth surface S 5 and the sixth surface S 6 is θ 56 the following condition is satisfied: θ 56= 120 degrees.When an angle between the seventh surface S 7 and the eighth surface S 8 is θ 78 the following condition is satisfied: θ 78= 120 degrees.As shown in FIGS. 5 and 7, the moving path of the center of the first ball B 1 along a direction parallel to the first guide 111 is defined as a first ball axis A 1, and the moving path of the center of the second ball B 2 along a direction parallel to the third guide 113 is defined as a second ball axis A 2. In addition, a first connection line L 1 is defined as a line connecting the first ball axis A 1 and the second ball axis A 2 in a direction perpendicular to the optical axis OL, and a second connection line L 2 is defined as a line orthogonal to and intersecting the optical axis OL and the first connection line L 1 and connecting the optical axis OL and the first connection line L 1.According to the above definitions, the sixth surface S 6 is located closer to a center P 1 of the first connecting line L 1 than the fifth surface S 5, and the seventh surface S 7 is located closer to the center P 1 of the first connecting line L 1 than the eighth surface S 8. In addition, an intersection of the first connection line L 1 and the second connection line L 2 is defined as an off-center point P 2, and the off-center point P 2 is closer to the second ball axis A 2 (i.e., the distance between the off-center point P 2 and the first ball axis A 1 is larger than the distance between the off-center point P 2 and the second ball axis A 2).Further, when a distance between the center point P 1 of the first connecting line L 1 and the second ball axis A 2 is d 1 and a distance between the off-center point P 2 and the second ball axis A 2 is d 2, the following conditions are satisfied: d 1=3.01 mm; d 2=2.38 mm; and d 1 / d 2=1.26.The autofocus driving assembly 14 is configured to move the lens unit 11 relative to the base 12 in a direction parallel to the optical axis OL. In particular, the autofocus drive arrangement 14 comprises a magnet 141 and a coil 142, wherein the coil 142 is correspondingly arranged such that it faces 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 via, for example, a printed circuit board 18 fixed to the base 12.Among the flexible components 15, four of the flexible components 15 are disposed between the lens unit 11 and the base 12, and the other four of the flexible components 15 are disposed between the lens unit 11 and the cover 13. The deformability of the flexible components 15 is configured to reduce the impact caused by the abutment of the lens unit 11 with adjacent components when the lens unit 11 moves in a direction parallel to the optical axis OL. In this embodiment, the flexible components 15 disposed between the lens unit 11 and the base 12 are connected to the base 12 and face the lens unit 11, and the flexible components 15 disposed between the lens unit 11 and the cover 13 are connected to the lens unit 11 and face the cover 13.Further, as shown in FIG. 7, a third joint line L 3 is defined as a line connected between the center of the flexible component 15 and the center P 1 of the first joint line L 1, and a fourth joint line L 4 is defined as a line orthogonal to and intersecting the optical axis OL and connected between the optical axis OL and the center P 1 of the first joint line L 1. When an angle between the third connecting line L 3 and the first connecting line L 1 is θa and an angle between the third connecting line L 3 and the fourth connecting line L 4 is θb, the following conditions are satisfied: θa=23 degrees; θb=78 degrees; and θa+θb=110 degrees.2. EmbodimentFIG. 10 is a top view of a camera module according to the 2nd embodiment of the present disclosure, FIG. 11 is a side view of the camera module in FIG. 10, FIG. 12 is an exploded view of the camera module in FIG. 10, FIG. 13 is another exploded view of the camera module in FIG. 10, FIG. 14 is still another exploded view of the camera module in FIG. 10, FIG. 15 is a sectional view of the camera module taken along line 15- 15 in FIG. 10, FIG. 16 is a sectional view of the camera module taken along line 16- 16 in FIG. 11, FIG. 17 is a top view of the camera module in FIG. 10 after a cover-omitted rotation, FIG. 18 is a schematic view of the positional relationship between guides and balls in the camera module of FIG. 17.In this embodiment, a camera module 9 bis provided. The camera module 9 bincludes an imaging lens driving module 1 band an image sensor 8 b, and the image sensor 8 bis disposed on an image surface IMG of the imaging lens driving module 1 b.The imaging lens driving module 1 bincludes a lens unit 11 b, a base 12 b, a cover 13 b, an autofocus driving assembly 14 b, eight flexible components 15 b, and a flexible circuit board 17 b.The lens unit 11 bis disposed relative to the base 12 b, and the cover 13 bis connected to the base 12 band forms an internal space with the base 12 b(the reference numeral thereof is omitted). The internal space is configured to house the lens unit 11 b.The lens unit 11 bhas an optical axis OL and includes a first guide 111 band a third guide 113 bextending in a direction parallel to the optical axis OL. As shown in FIG. 18, the first guide 111 bincludes a first surface S 1 band a second surface S 2 b, and the second surface S 2 band the first surface S 1 bare connected and form an angle therebetween. The third guide 113 bincludes a third surface S 3 band a fourth surface S 4 b, and the fourth surface S 4 band the third surface S 3 bare connected and form an angle therebetween.The base 12 bincludes a second guide 122 band a fourth guide 124 bextending in a direction parallel to the optical axis OL. As shown in FIG. 18, the second guide 122 bincludes a fifth surface S 5 band a sixth surface S 6 b, and the sixth surface S 6 band the fifth surface S 5 bare connected and form an angle therebetween. The fourth guide 124 bincludes a seventh surface S 7 band an eighth surface S 8 b, and the eighth surface S 8 band the seventh surface S 7 bare connected and form an angle therebetween.The first guide 111 band the second guide 122 bare respectively disposed to receive three first balls B 1, and the third guide 113 band the fourth guide 124 bare respectively disposed to receive three second balls B 2, thereby giving a degree of freedom to the lens unit 11 bfor movement in a direction parallel to the optical axis OL.As shown in FIGS. 17 and 18, the first surface S 1 bof the first guide 111 bis parallel to the sixth surface S 6 bof the second guide 122 b, the fourth surface S 4 bof the third guide 113 bis parallel to the seventh surface S 7 bof the fourth guide 124 b, and the sixth surface S 6 bof the second guide 122 bis parallel to the seventh surface S 7 bof the fourth guide 124 b.As shown in FIG. 18, each of the first balls B 1 has only one contact point C 1 with the second surface S 2 b, only one contact point C 1 with the fifth surface S 5 band only one contact point C 1 with the sixth surface S 6 b, and each of the second balls B 2 has only one contact point C 1 with the third surface S 3 b, only one contact point C 1 with the seventh surface S 7 band only one contact point C 1 with the eighth surface S 8 b.When an angle between the sixth surface S 6 band the seventh surface S 7 bis θ 67 and an angle between the fifth surface S 5 band the eighth surface S 8 bis θ 58 the following conditions are satisfied: θ 67= 180 degrees; θ 58= 180 degrees; and |θ 67- π|=|θ 58- π|. In this embodiment, the sixth surface S 6 band the seventh surface S 7 bare parallel to each other such that the angle θ 67 between the sixth surface S 6 band the seventh surface S 7 bis 180 degrees; the fifth surface S 5 band the eighth surface S 8 bare parallel to each other such that the angle θ 58 between the fifth surface S 5 band the eighth surface S 8 bis 180 degrees.When an angle between the fifth surface S 5 band the sixth surface S 6 bis θ 56 the following condition is satisfied: θ 56= 90 degrees.When an angle between the seventh surface S 7 band the eighth surface S 8 bis θ 78 the following condition is satisfied: θ 78= 90 degrees.As shown in FIGS. 15 and 17, the moving path of the center of the first ball B 1 along a direction parallel to the first guide 111 bis defined as a first ball axis A 1, and the moving path of the center of the second ball B 2 along a direction parallel to the third guide 113 bis defined as a second ball axis A 2. In addition, a first connection line L 1 is defined as a line connecting the first ball axis A 1 and the second ball axis A 2 in a direction perpendicular to the optical axis OL, and a second connection line L 2 is defined as a line orthogonal to and intersecting both the optical axis OL and the first connection line L 1 and connecting the optical axis OL and the first connection line L 1.According to the above definitions, the sixth surface S 6 bis located closer to a center point P 1 of the first connecting line L 1 than the fifth surface S 5 b, and the seventh surface S 7 bis located closer to the center point P 1 of the first connecting line L 1 than the eighth surface S 8 b. In addition, an intersection of the first connection line L 1 and the second connection line L 2 is defined as an off-center point P 2, and the off-center point P 2 is closer to the second ball axis A 2 (i.e., the distance between the off-center point P 2 and the first ball axis A 1 is larger than the distance between the off-center point P 2 and the second ball axis A 2).In addition, when a distance between the center point P 1 of the first connecting line L 1 and the second ball axis A 2 is d 1 and a distance between the off-center point P 2 and the second ball axis A 2 is d 2, the following conditions are satisfied: d 1=3.01 mm; d 2=2.38 mm; and d 1 / d 2=1.26.The autofocus driving assembly 14 bis configured to move the lens unit 11 brelative to the base 12 bin a direction parallel to the optical axis OL. In particular, the autofocus drive arrangement 14 bincludes a magnet 141 band a coil 142 b, wherein the coil 142 bis correspondingly arranged such that it faces the magnet 141 b. The coil 142 bis disposed on the lens unit 11 b, and the magnet 141 bis disposed on the base 12 b.Among the flexible components 15 b, four of the flexible components 15 bare disposed between the lens unit 11 band the base 12 b, and the other four of the flexible components 15 bare disposed between the lens unit 11 band the cover 13 b. The deformability of the flexible components 15 bis configured to reduce the impact caused by the abutment of the lens unit 11 bto adjacent components when the lens unit 11 bmoves in a direction parallel to the optical axis OL. In this embodiment, the flexible components 15 bdisposed between the lens unit 11 band the base 12 bare connected to the base 12 band face the lens unit 11 b, and the flexible components 15 bdisposed between the lens unit 11 band the cover 13 bare connected to the lens unit 11 band face the cover 13 b.Further, as shown in FIG. 17, a third joint line L 3 is defined as a line connected between the center of the flexible component 15 band the center P 1 of the first joint line L 1, and a fourth joint line L 4 is defined as a line orthogonal to and intersecting the optical axis OL and connected between the optical axis OL and the center P 1 of the first joint line L 1. When an angle between the third connecting line L 3 and the first connecting line L 1 is θa and an angle between the third connecting line L 3 and the fourth connecting line L 4 is θb, the following conditions are satisfied: θa=23 degrees; θb=78 degrees; and θa+θb=110 degrees.The flexible circuit board 17 bis connected to the lens unit 11 b, and the coil 142 bis disposed on the flexible circuit board 17 b. In other words, in this embodiment, the coil 142 bis disposed on the lens unit 11 bvia the flexible printed circuit board 17 bconnected to the lens unit 11 b.As shown in FIG. 14 and with reference to FIG. 19, FIG. 19 is a top view of a flexible circuit board, an autofocus driving assembly, and a base in the camera module in FIG. 10. From the perspective of FIG. 19, the meandering circuit M 1 has at least four turn portions UL 1 on a plane perpendicular to the optical axis OL and a plurality of straight portions SL 1 extending in at least two perpendicular directions between the turn portions UL 1. However, the present disclosure is not limited to the configuration of the meandering circuit M 1 shown in FIG. 19. For example, see FIGS. 20 and 21, each of which shows a top view of a flexible circuit board, an autofocus driving assembly, and a base in a camera module according to a first exemplary configuration and a second exemplary configuration of the present disclosure. The flexible circuit board 17 b, the autofocus driving assembly 14 b, and the base 12 bshown in FIGS. 20 and 21 are similar to the flexible circuit board 17 b, the autofocus driving assembly 14 b, and the base 12 bshown in FIGS. 10 to 19, and similar or identical reference numerals are used to denote similar or identical components. The functions and effects of these components are the same as described above, so explanation thereof will not be given again.In the first exemplary configuration shown in FIG. 20, a meandering circuit M 2 of the flexible circuit board 17 bhas portions overlapping in a direction perpendicular to the optical axis OL. From the perspective of FIG. 20, the meandering circuit M 2 includes at least eight bending turn portions UL 2 on a plane perpendicular to the optical axis OL and a plurality of straight portions SL 2 extending between the bending turn portions UL 2 inclined in a direction relative to the coil 142 b.In the second exemplary configuration of FIG. 21, a meandering circuit M 3 of the flexible circuit board 17 bhas portions overlapping in a direction perpendicular to the optical axis OL. From the perspective of FIG. 21, the meandering circuit M 3 has at least two bending turn portions UL 3 on a plane perpendicular to the optical axis OL, wherein the radius of curvature of one of the bending turn portions UL 3 is larger than the radius of curvature of the other of the bending turn portions UL 3.Another example is shown in FIGS. 22 and 23. FIG. 22 is a perspective view of a flexible circuit board, an autofocus driving assembly, and a base in a camera module according to a third exemplary configuration of the present disclosure, and FIG. 23 is a top view of the flexible circuit board, the autofocus driving assembly, and the base in the camera module of FIG. 22. the flexible circuit board 17 b, the autofocus driving assembly 14 b, and the base 12 bshown in FIGS. 22 and 23 are similar to the flexible circuit board 17 b, the autofocus driving assembly 14 b, and the base 12 bshown in FIGS. 10 to 19, and similar or identical reference numerals are used to denote similar or identical components. The functions and effects of these components are the same as described above, so explanation thereof will not be given again.In the third exemplary configuration shown in FIGS. 22 and 23, the flexible circuit board 17 bincludes a folding circuit F 4 having portions overlapping in a direction parallel to the optical axis OL (as shown in FIG. 22 ). The folding circuit F 4 includes at least three turn portions UL 4 in a direction parallel to the optical axis OL and a plurality of straight portions SL 4 extending in the same direction between the turn portions UL 4.3. EmbodimentSee FIGS. 24 and 25, FIG. 24 is a perspective view of an electronic device according to the 3rd embodiment of the present disclosure, and FIG. 25 is another perspective view of the electronic device in FIG. 24.In this embodiment, the electronic device 200 is a smartphone including a plurality of camera modules, a flash module 201, a focusing aid module 202, an image signal processor 203, a display module (user interface) 204, and an image software processor (not shown).These camera modules include an ultra wide angle camera module 200 a, a high pixel camera module 200 b, a tele camera module 200 c, and a tele camera module 200 d. Moreover, the camera module 200 dincludes, for example, the imaging lens driving module 1 as disclosed in the first embodiment of the present disclosure, but the present disclosure is not limited thereto. At least one of the camera modules 200 a, 200 b, and 200 cmay include the imaging lens driving module of the present disclosure.The image captured by the ultra wide angle camera module 200 ahas a property of multiple imaged objects. FIG. 26 is an image captured by the ultra wide angle camera module 200 a.The image captured by the high pixel camera module 200 bhas high resolution and low distortion, and the high pixel camera module 200 bmay capture a part of the image in FIG. 26. FIG. 27 is an image captured by the high pixel camera module 200 b.The image captured by the tele camera module 200 cor the tele camera module 200 dhas high optical magnification, and the tele camera module 200 cor the tele camera module 200 dmay capture a part of the image in FIG. 27. FIG. 28 is an image captured by the tele camera module 200 cor the tele camera module 200 d.When a user takes images of an object, the light beams are converged in the ultra wide angle camera module 200 a, the high pixel camera module 200 b, the tele camera module 200 c, or the tele camera module 200 dto generate images, and the flash module 201 is activated for light assistance. The focusing aid module 202 captures the object distance of the imaged object to achieve fast automatic focusing. The image signal processor 203 is configured to optimize the captured image to improve image quality and provide a zoom function. The light beam emitted by the focusing aid module 202 may be either conventional infrared light or laser light. The display module 204 may include a touch screen, and the user may interact with the display module 204 to adjust the viewing angle and switch between different camera modules, and the image software processor has multiple functions to capture images and to complete image processing. Alternatively, the user may capture images via a physical key. The image processed by the image software processor may be displayed on the display module 204.4. EmbodimentSee FIG. 29 which is a perspective view of an electronic device according to the 4th embodiment of the present disclosure.In this embodiment, the electronic device 300 is a smartphone including a camera module 300 a, a camera module 300 b, a camera module 300 c, a camera module 300 d, a camera module 300 e, a camera module 300 f, a camera module 300 g, a camera module 300 h, a camera module 300 i, a flash module 301, an image signal processor, a display module, and an image software processor (not shown). The camera module 300 a, the camera module 300 b, the camera module 300 c, the camera module 300 d, the camera module 300 e, the camera module 300 f, the camera module 300 g, the camera module 300 h, and the camera module 300 iare arranged on the same side of the electronic device 300, while the display module is arranged on the opposite side of the electronic device 300. Moreover, the camera module 300 cincludes, for example, the imaging lens driving module 1 as disclosed in the first embodiment of the present disclosure, but the present disclosure is not limited thereto. At least one of the camera modules 300 a, 300 b, 300 d, 300 e, 300 f, 300 g, 300 h, and 300 imay include the imaging lens driving module of the present disclosure.The camera module 300 ais a tele camera module, the camera module 300 bis a tele camera module, the camera module 300 cis a tele camera module, the camera module 300 dis a tele camera module, the camera module 300 eis a wide-angle camera module, the camera module 300 fis a wide-angle camera module, the camera module 300 gis an ultra wide-angle camera module, the camera module 300 his a ToF camera module (from Engl. Time of Flight) and camera module 300 iis an ultra wide angle camera module. In this embodiment, the camera module 300 i, the camera module 300 a, the camera module 300 b, the camera module 300 c, the camera module 300 d, the camera module 300 e, the camera module 300 f, and the camera module 300 ghave different fields of view, so that the electronic device 300 may have different magnification ratios to meet the requirement of the optical zoom functionality. Moreover, the camera module 300 aand the camera module 300 bare tele camera modules having a light folding member configuration. In addition, the camera module 300 hmay determine depth information of the imaged object. In this embodiment, the electronic device 300 includes a plurality of camera modules 300 a, 300 b, 300 c, 300 d, 300 e, 300 f, 300 g, 300 h, and 300 i, but the present disclosure is not limited to the number and arrangement of the camera modules. When a user captures images of an object, the light beams in the camera module 300 a, the camera module 300 b, the camera module 300 c, the camera module 300 d, the camera module 300 e, the camera module 300 f, the camera module 300 g, the camera module 300 h, or the camera module 300 irun together to generate an image(s), and the flash module 301 is activated for light assistance. Further, the following processes are performed in a similar manner to the above-mentioned embodiments, so that the details thereof will not be given again.5. EmbodimentSee FIGS. 30 to 32, FIG. 30 is a perspective view of an electronic device according to the 5th embodiment of the present disclosure, FIG. 31 is a side view of the electronic device in FIG. 30, and FIG. 32 is a top view of the electronic device in FIG. 30.In this embodiment, the electronic device 400 is a motor vehicle. The electronic device 400 includes a plurality of automobile camera modules 401, and the camera modules 401 each include the imaging lens driving module of the present disclosure. The camera modules 401 may serve as panoramic car cameras, dashboard cameras, and backup cameras, for example.For example, as shown in FIG. 30, the camera modules 401 are arranged around the motor vehicle to capture peripheral images of the motor vehicle, which is advantageous for obtaining external traffic information for achieving an autopilot function. In addition, the image software processor may merge the peripheral images into a panoramic image for the driver to check all corners around the motor vehicle, which is advantageous for parking and driving.For example, as shown in FIG. 31, the camera modules 401 are respectively disposed at the lower part of the side mirrors. A maximum field of view of the camera modules 401 may be 40 degrees to 90 degrees to capture images in portions in the left and right lanes.For example, as shown in FIG. 32, the camera modules 401 may also be respectively disposed at the lower part of the side mirrors and inside the front and rear windshields to provide external information to the driver and also provide more viewing angles to reduce blind spots, thereby improving driving safety.The smartphones, panoramic automobile cameras, dashboard cameras, and vehicle backup cameras in the embodiments are only examples for illustrating the drive module for an imaging lens of the present disclosure installed in an electronic device, and the present disclosure is not limited thereto. The imaging lens driving module may be optionally applied to movable focus optical systems. Moreover, the imaging lens driving module is characterized by good aberration correction and high image quality, and can be used for 3D imaging applications (three-dimensional imaging applications) in products such as digital cameras, mobile devices, digital tablets, smart TVs, network monitors, multi-camera devices, vision systems, motion sensor input devices, wearable devices, and other electronic imaging devices.The foregoing description has been described for purposes of explanation with reference to specific embodiments. It should be noted that the present disclosure shows different data of the various embodiments; however, the data of the various embodiments were obtained from experiments. The embodiments were chosen and described in order to best explain the principles of the disclosure and its practical applications, to enable others skilled in the art to best utilize the disclosure and various embodiments with various modifications as are suited to the particular use contemplated. The above-illustrated embodiments and the accompanying drawings are exemplary and are not intended to be exhaustive or to limit the scope of the present disclosure to the precise forms disclosed. Many modifications and variations are possible in light of the above teachings.
Claims
A drive module for an imaging lens (1) comprising a lens unit (11) having an optical axis (OL), the lens unit (11) comprising a first guide (111) and a third guide (113) extending in a direction parallel to the optical axis (OL), the first guide (111) comprising a second surface (S2) and the third guide (113) comprising a third surface (S3); a base (12), wherein the lens unit (11) is disposed relative to the base (12), the base (12) includes a second guide (122) and a fourth guide (124) extending in a direction parallel to the optical axis (OL), the second guide (122) includes a fifth surface (S5) and a sixth surface (S6), the sixth surface (S6) and the fifth surface (S5) are connected and form an angle therebetween, the fourth guide (124) includes a seventh surface (S7) and an eighth surface (S8), and the eighth surface (S8) and the seventh surface (S7) are connected and form an angle therebetween; a cover (13) connected to the base (12) and forming an interior with the base (12), the interior being configured to receive the lens unit (11), the first guide (111) and the second guide (122) being respectively arranged to receive at least one first ball (B1), the third guide (113) and the fourth guide (124) being respectively arranged to receive at least one second ball (B2), the at least one first ball (B1) and the at least one second ball (B2) being configured to impart a degree of freedom to the lens unit (11) for movement in a direction parallel to the optical axis (OL), and a total number of the at least one first ball (B1) and the at least one second ball (B2) being at least three; an autofocus driving assembly (14) configured to drive the lens unit (11) to move relative to the base (12) in a direction parallel to the optical axis (OL), wherein the autofocus driving unit (14) includes at least one magnet (141) and at least one coil (142), the at least one coil (142) is correspondingly disposed to face the at least one magnet (141), and one of the at least one magnet (141) and the at least one coil (142) is disposed on the lens unit (11); and at least one flexible component (15) disposed between the lens unit (11) and the base (12) and / or between the lens unit (11) and the cover (13), wherein the at least one flexible component (15) is deformable to reduce an impact caused by an abutment of the lens unit (11) with adjacent components when the lens unit (11) moves in a direction parallel to the optical axis (OL); wherein a moving path of a center of the at least one first ball (B1) along a direction parallel to the first guide (111) is defined as a first ball axis (A1), a moving path of a center of the at least one second ball (B2) along a direction parallel to the third guide (113) is defined as a second ball axis (A2), and a first connecting line (L1) is defined as a line connected between the first ball axis (A1) and the second ball axis (A2) in a direction perpendicular to the optical axis (OL); wherein the sixth surface (S6) is located closer to a center point (P1) of the first connecting line (L1) than the fifth surface (S5) and the seventh surface (S7) is located closer to the center point (P1) of the first connecting line (L1) than the eighth surface (S8); wherein the second surface (S2), the fifth surface (S5) and the sixth surface (S6) each have only one contact point (C1) with the at least one first sphere (B1) and the third surface (S3), the seventh surface (S7) and the eighth surface (S8) each have only one contact point (C1) with the at least one second sphere (B2); wherein an angle between the sixth surface (S 6) and the seventh surface (S 7) is θ 67 an angle between the fifth surface (S 5) and the eighth surface (S 8) is θ 58 and the following condition is satisfied: | θ 67 - π | ≤ | θ 58 - π | ; and wherein the sixth surface (S 6) and the seventh surface (S 7) are parallel to each other.The drive module for an imaging lens (1) according to claim 1, wherein the at least one flexible component (15) is connected to the base (12), and the at least one flexible component (15) faces the lens unit (11).The drive module for an imaging lens (1) according to claim 1, wherein the at least one flexible component (15) is connected to the lens unit (11), and the at least one flexible component (15) faces the cover (13).The drive module for an imaging lens (1) according to claim 1, wherein the at least one flexible component (15) comprises at least two flexible components (15), and the at least two flexible components (15) are respectively disposed between the lens unit (11) and the base (12) and between the lens unit (11) and the cover (13).The imaging lens driving module (1) according to claim 1, wherein a number of the at least one flexible component (15) is eight in total.The drive module for an imaging lens (1) according to claim 1, wherein the at least one magnet (141) is disposed on the lens unit (11), the at least one coil (142) is disposed on the base (12), and the at least one coil (142) is disposed corresponding to the at least one magnet (141).The drive module for an imaging lens (1b) according to claim 1, wherein the at least one coil (142b) is disposed on the lens unit (11b), the at least one magnet (141b) is disposed on the base (12b), and the at least one magnet (141b) is disposed corresponding to the at least one coil (142b).The imaging lens driving module (1b) according to claim 7, further comprising: a flexible printed circuit board (17b) connected to the lens unit (11b).The drive module for an imaging lens (1b) according to claim 8, wherein the at least one coil (142b) is disposed on the flexible printed circuit board (17b), and the flexible printed circuit board (17b) includes a meandering circuit (M1) having portions overlapping in a direction perpendicular to the optical axis (OL).The drive module for an imaging lens (1b) according to claim 8, wherein the at least one coil (142b) is disposed on the flexible circuit board (17b), and the flexible circuit board (17b) includes a folding circuit (F4) having portions overlapping in a direction parallel to the optical axis (OL).The imaging lens driving module (1) according to claim 1, wherein the at least one first ball (B1) comprises at least two first balls (B1), and the at least one second ball (B2) comprises at least two second balls (B2).The drive module for an imaging lens (1) according to claim 1, wherein a second connecting line (L2) is defined as a line orthogonal to and intersecting the optical axis (OL) and the first connecting line (L1) and connected between the optical axis (OL) and the first connecting line (L1), an intersection of the first connecting line (L1) and the second connecting line (L2) is an off-center point (P2), a distance between the center point (P1) of the first connecting line (L1) and the second spherical axis (A2) is d1, a distance between the off-center point (P 2) and the second ball axis (A 2) is d 2, and the following condition is satisfied: 1.1≤d 1 / d 2<4.
9. The driving module for an imaging lens (1) according to claim 1, wherein a third connecting line (L3) is defined as a line connected between a center of the at least one flexible component (15) and the center point (P1) of the first connecting line (L1), a fourth connecting line (L4) is defined as a line orthogonal to and intersecting the optical axis (OL) and connected between the optical axis (OL) and the center point (P1), an angle between the third connecting line (L3) and the first connecting line (L1) is θa, an angle between the third connecting line (L3) and the fourth connecting line (L4) is θb, and the following condition is satisfied: θ a + θ b ≠ 90 degrees. The driving module for an imaging lens (1) according to claim 1, wherein an angle between the fifth surface (S5) and the sixth surface (S6) is θ 56 an angle between the seventh surface (S7) and the eighth surface (S8) is θ 78 and the following conditions are satisfied: π / 2 ≤ θ 56 < π ; and π / 2 ≤ θ 78 < π. The driving module for an imaging lens (1) according to claim 14, wherein the angle between the fifth surface (S5) and the sixth surface (S6) is θ 56 the angle between the seventh surface (S7) and the eighth surface (S8) is θ 78 and the following conditions are satisfied: 98 degrees ≤ θ 56 < π; and 98 degrees ≤ θ 78 < π. The driving module for an imaging lens (1) according to claim 1, wherein the first guide (111) further comprises a first surface (S1), the first surface (S1) and the second surface (S2) are connected and form an angle therebetween, the third guide (113) further comprises a fourth surface (S4), and the fourth surface (S4) and the third surface (S3) are connected and form an angle therebetween; wherein a gap (G1) is provided between the first surface (S1) and the at least one first sphere (B1), and / or a gap (G1) is provided between the fourth surface (S4) and the at least one second sphere (B2); and wherein the first surface (S 1) and the sixth surface (S 6) are parallel to each other, and the fourth surface (S 4) and the seventh surface (S 7) are parallel to each other.A camera module (9) comprising: the imaging lens driving module (1) according to claim 1; and an image sensor (8) disposed on an image surface (IMG) of the imaging lens driving module (1).An electronic device (200) comprising: the camera module (9) according to claim 17.A drive module for an imaging lens (1) comprising: a lens unit (11) having an optical axis (OL), the lens unit (11) comprising a first guide (111) and a third guide (113) extending in a direction parallel to the optical axis (OL), wherein the first guide (111) comprises a second surface (S2) and the third guide (113) comprises a third surface (S3); a base (12), wherein the lens unit (11) is disposed relative to the base (12), the base (12) includes a second guide (122) and a fourth guide (124) extending in a direction parallel to the optical axis (OL), the second guide (122) includes a fifth surface (S5) and a sixth surface (S6), the sixth surface (S6) and the fifth surface (S5) are connected and form an angle therebetween, the fourth guide (124) includes a seventh surface (S7) and an eighth surface (S8), and the eighth surface (S8) and the seventh surface (S7) are connected and form an angle therebetween; a cover (13) connected to the base (12) and forming an interior with the base (12), the interior being configured to receive the lens unit (11), the first guide (111) and the second guide (122) being respectively arranged to receive at least one first ball (B1), the third guide (113) and the fourth guide (124) being respectively arranged to receive at least one second ball (B2), the at least one first ball (B1) and the at least one second ball (B2) being configured to impart a degree of freedom to the lens unit (11) for movement in a direction parallel to the optical axis (OL), and a total number of the at least one first ball (B1) and the at least one second ball (B2) being at least three; an autofocus driving assembly (14) configured to drive the lens unit (11) to move relative to the base (12) in a direction parallel to the optical axis (OL), wherein the autofocus driving unit (14) includes at least one magnet (141) and at least one coil (142), the at least one coil (142) is correspondingly disposed to face the at least one magnet (141), and one of the at least one magnet (141) and the at least one coil (142) is disposed on the lens unit (11); and at least one flexible component (15) disposed between the lens unit (11) and the base (12) and / or between the lens unit (11) and the cover (13), wherein the at least one flexible component (15) is deformable to reduce an impact caused by an abutment of the lens unit (11) with adjacent components when the lens unit (11) moves in a direction parallel to the optical axis (OL); wherein the second surface (S2), the fifth surface (S5), and the sixth surface (S6) each have only one contact point (C1) with the at least one first sphere (B1), and the third surface (S3), the seventh surface (S7), and the eighth surface (S8) each have only one contact point (C1) with the at least one second sphere (B2); and wherein an angle between the sixth surface (S 6) and the seventh surface (S 7) is θ 67 an angle between the fifth surface (S 5) and the eighth surface (S 8) is θ 58 and the following condition is satisfied: | θ 67 - π | ≤ | θ 58 - π |. The imaging lens driving module (1) according to claim 19, wherein the at least one flexible component (15) is connected to the base (12), and the at least one flexible component (15) faces the lens unit (11).The imaging lens driving module (1) according to claim 19, wherein the at least one flexible component (15) is connected to the lens unit (11), and the at least one flexible component (15) faces the cover (13).The drive module for an imaging lens (1) according to claim 19, wherein the at least one flexible component (15) comprises at least two flexible components (15), and the at least two flexible components (15) are respectively disposed between the lens unit (11) and the base (12) and between the lens unit (11) and the cover (13).The imaging lens driving module (1) according to claim 19, wherein a number of the at least one flexible component (15) is eight in total.The drive module for an imaging lens (1) according to claim 19, wherein the at least one magnet (141) is disposed on the lens unit (11), the at least one coil (142) is disposed on the base (12), and the at least one coil (142) is disposed corresponding to the at least one magnet (141).The drive module for an imaging lens (1b) according to claim 19, wherein the at least one coil (142b) is disposed on the lens unit (11b), the at least one magnet (141b) is disposed on the base (12b), and the at least one magnet (141b) is disposed corresponding to the at least one coil (142b).The imaging lens driving module (1b) according to claim 25, further comprising: a flexible printed circuit board (17b) connected to the lens unit (11b).The drive module for an imaging lens (1b) according to claim 26, wherein the at least one coil (142b) is disposed on the flexible printed circuit board (17b), and the flexible printed circuit board (17b) includes a meandering circuit (M1) having portions overlapping in a direction perpendicular to the optical axis (OL).The drive module for an imaging lens (1b) according to claim 26, wherein the at least one coil (142b) is disposed on the flexible circuit board (17b), and the flexible circuit board (17b) includes a folding circuit (F4) having portions overlapping in a direction parallel to the optical axis (OL).The imaging lens driving module (1) according to claim 19, wherein the at least one first ball (B1) comprises at least two first balls (B1), and the at least one second ball (B2) comprises at least two second balls (B2).The driving module for an imaging lens (1) according to claim 19, wherein a moving path of a center of the at least one first ball (B1) along a direction parallel to the first guide (111) is defined as a first ball axis (A1), and a moving path of a center of the at least one second ball (B2) along a direction parallel to the third guide (113) is defined as a second ball axis (A2); wherein a first connecting line (L1) is defined as a line connected between the first ball axis (A1) and the second ball axis (A2) in a direction perpendicular to the optical axis (OL), a second connecting line (L2) is defined as a line, which is orthogonal to the optical axis (OL) and the first connecting line (L1) and intersects the same and is connected between the optical axis (OL) and the first connecting line (L1), an intersection point of the first connecting line (L1) and the second connecting line (L2) is an off-center point (P2), a distance between a center point (P1) of the first connecting line (L1) and the second spherical axis (A2) is d1, a distance between the off-center point (P2) and the second spherical axis (A2) is d2, and the following condition is satisfied: 1.1≤d 1 / d 2<4.
9. The driving module for an imaging lens (1) according to claim 19, wherein a moving path of a center of the at least one first ball (B1) along a direction parallel to the first guide (111) is defined as a first ball axis (A1), and a moving path of a center of the at least one second ball (B2) along a direction parallel to the third guide (113) is defined as a second ball axis (A2); wherein a first connection line (L1) is defined as a line connected between the first ball axis (A1) and the second ball axis (A2) in a direction perpendicular to the optical axis (OL), a third connection line (L3) is defined as a line, which is connected between a center of the at least one flexible component (15) and a center point (P1) of the first connecting line (L1), a fourth connecting line (L4) is defined as a line which is orthogonal to and intersects the optical axis (OL) and is connected between the optical axis (OL) and the center point (P1), an angle between the third connecting line (L3) and the first connecting line (L1) is θa, an angle between the third connecting line (L3) and the fourth connecting line (L4) is θb, and the following condition is satisfied: θ a+θ b ≠ 90 degrees. The driving module for an imaging lens (1) according to claim 19, wherein an angle between the fifth surface (S5) and the sixth surface (S6) is θ 56 an angle between the seventh surface (S7) and the eighth surface (S8) is θ 78 and the following conditions are satisfied: π / 2 ≤ θ 56 < π ; and π / 2 ≤ θ 78 < π. The driving module for an imaging lens (1) according to claim 32, wherein the angle between the fifth surface (S5) and the sixth surface (S6) is θ 56 the angle between the seventh surface (S7) and the eighth surface (S8) is θ 78 and the following conditions are satisfied: 98 degrees ≤ θ 56 < π; and 98 degrees ≤ θ 78 < π. The driving module for an imaging lens (1) according to claim 19, wherein the first guide (111) further comprises a first surface (S1), the first surface (S1) and the second surface (S2) are connected and form an angle therebetween, the third guide (113) further comprises a fourth surface (S4), and the fourth surface (S4) and the third surface (S3) are connected and form an angle therebetween; wherein the first surface (S1) and the sixth surface (S6) are parallel to each other, and the fourth surface (S4) and the seventh surface (S7) are parallel to each other.A camera module (9) comprising: the imaging lens driving module (1) according to claim 19; and an image sensor (8) disposed on an image surface (IMG) of the imaging lens driving module (1).An electronic device (200) comprising: the camera module (9) according to claim 35.