Camera module, electronic device and vehicle tool

Abstract

A camera module includes an imaging lens group and a driving device. The imaging lens group has an optical axis. The driving device includes a fixing member, a lens carrier, a magnet carrier, a first sphere set and a second sphere set. The imaging lens group is disposed on the lens carrier. The magnet carrier has a first groove set and a second groove set. The first groove set extends parallel to the optical axis, and the second groove set extends perpendicular to the optical axis. One of the fixing member and the lens carrier has a third groove set. The third groove set extends perpendicular to the optical axis and opposite to the second groove set. The second sphere set is disposed between the second groove set and the third groove set, and the imaging lens group is movable relative to the fixing member in a plane perpendicular to the optical axis via the second sphere set. The first sphere set is disposed in the first groove set, and the imaging lens group is movable relative to the fixing member parallel to the optical axis via the first sphere set. An electronic device and a vehicle tool having the camera module are also disclosed.

Description

Technical Field

[0001] This invention relates to a camera module, electronic device, and vehicle tool, and more particularly to a camera module suitable for electronic devices and vehicle tools. Background Technology

[0002] With advancements in semiconductor technology, the performance of electronic image sensors has improved, allowing pixels to reach smaller sizes. Therefore, optical lenses with high image quality have become an indispensable component. Furthermore, with the rapid development of technology, the applications of electronic devices and vehicle tools equipped with optical lenses are becoming more widespread, leading to more diverse requirements for these lenses.

[0003] In recent years, electronic devices and automotive tools have been trending towards thinner and lighter designs. However, traditional optical lenses can no longer simultaneously meet the demands for miniaturization, high image quality, and three-dimensional movement, especially for cameras with autofocus, optical image stabilization, and zoom capabilities. Existing camera technology struggles to precisely drive lenses in three-dimensional space, thus failing to meet current market demands. Therefore, improving the precision of camera lens drive control to meet the high-specification requirements of today's electronic devices and automotive tools has become a crucial issue in the field. Summary of the Invention

[0004] In view of the problems mentioned above, the present invention discloses a camera module, electronic device and vehicle tool that helps to improve the accuracy of lens drive control.

[0005] An embodiment of the present invention discloses a camera module comprising an imaging lens group and a driving device. The imaging lens group has an optical axis. The driving device includes a fixing member, a lens carrier, a magnetic carrier, a first sphere group, and a second sphere group. The imaging lens group is disposed on the lens carrier. The magnetic carrier has a first groove group and a second groove group. The first groove group extends along a first direction parallel to the optical axis, and the second groove group extends along a second direction perpendicular to the optical axis. The first sphere group is disposed on the first groove group. The second sphere group is disposed on the second groove group. One of the fixing member and the lens carrier has a third groove group, and the other has a fourth groove group. The third groove group extends along a third direction perpendicular to the optical axis and different from the second direction and is disposed opposite to the second groove group. The second sphere group is disposed on the third groove group, and the imaging lens group is movable relative to the fixing member on a plane formed by the third direction and the second direction via the second sphere group. The fourth groove group extends along a first direction parallel to the optical axis and is disposed opposite to the first groove group. The first sphere group is disposed in the fourth groove group, and the imaging lens group can move relative to the fixing member in the first direction through the first sphere group. The third direction is orthogonal to the second direction, and both the third groove group and the second groove group are in solid contact with the second sphere group.

[0006] Another embodiment of the present invention discloses a camera module comprising an imaging lens group and a driving device. The imaging lens group has an optical axis. The driving device includes a fixing member, a lens carrier, a magnetic carrier, a first sphere group, and a second sphere group. The imaging lens group is disposed on the lens carrier. The magnetic carrier has a first groove group and a second groove group. The first groove group extends along a first direction parallel to the optical axis, and the second groove group extends along a second direction perpendicular to the optical axis. The first sphere group is disposed on the first groove group. The second sphere group is disposed on the second groove group. One of the fixing member and the lens carrier has a third groove group, and the other has a fourth groove group. The third groove group extends along a third direction perpendicular to the optical axis and different from the second direction and is disposed opposite to the second groove group. The second sphere group is disposed on the third groove group, and the imaging lens group is movable relative to the fixing member on a plane formed by the third direction and the second direction via the second sphere group. The fourth groove group extends along a first direction parallel to the optical axis and is disposed opposite to the first groove group. The first sphere group is disposed in the fourth groove group, and the imaging lens group is movable relative to the fixing member in a first direction via the first sphere group. The second groove group has at least one V-shaped groove and at least one planar groove, and the third groove group has at least one V-shaped groove and at least one planar groove. The extension directions of the at least one V-shaped groove in the second groove group and the at least one V-shaped groove in the third groove group are orthogonal to each other. The at least one V-shaped groove in the second groove group corresponds to the at least one planar groove in the third groove group, and the at least one planar groove in the second groove group corresponds to the at least one V-shaped groove in the third groove group.

[0007] Another embodiment of the present invention discloses an electronic device that includes the aforementioned camera module.

[0008] Another embodiment of the present invention discloses a vehicle tool that includes the aforementioned camera module.

[0009] The camera module, electronic device, and vehicle tool disclosed in the above embodiments can provide the imaging lens group with the degree of freedom to translate in three-dimensional space to achieve the effects of autofocus and image stabilization, and can also simplify the assembly process and enable the drive device to maintain high-precision controllability when driving the imaging lens group.

[0010] The above description of the invention and the following description of the embodiments are used to demonstrate and explain the principles of the invention, and to provide a further explanation of the claims of the invention. Attached Figure Description

[0011] Figure 1 This is a perspective view of a camera module according to a first embodiment of the present invention.

[0012] Figure 2 yes Figure 1 A schematic diagram of the camera module after it has been cut open.

[0013] Figure 3 yes Figure 1 A schematic diagram of the camera module after being cut in another way.

[0014] Figure 4 yes Figure 1 An exploded view of the camera module.

[0015] Figure 5 yes Figure 1 Another exploded view of the camera module.

[0016] Figure 6 yes Figure 1 A schematic diagram showing the correspondence between the lens carrier and the magnet carrier of the camera module.

[0017] Figure 7 This is a perspective view of a camera module according to a second embodiment of the present invention.

[0018] Figure 8 yes Figure 7 A schematic diagram of the camera module after it has been cut open.

[0019] Figure 9 yes Figure 7 A schematic diagram of the camera module after being cut in another way.

[0020] Figure 10 yes Figure 7 An exploded view of the camera module.

[0021] Figure 11 yes Figure 7 Another exploded view of the camera module.

[0022] Figure 12 yes Figure 7 A schematic diagram showing the correspondence between the lens carrier and the magnet carrier of the camera module.

[0023] Figure 13 This is a perspective view of a camera module according to a third embodiment of the present invention.

[0024] Figure 14 yes Figure 13 An exploded view of the camera module.

[0025] Figure 15 yes Figure 13 A schematic diagram showing the correspondence between the magnet carrier and the fixing component of the camera module.

[0026] Figure 16A perspective view of one side of an electronic device according to a fourth embodiment of the present invention is shown.

[0027] Figure 17 Draw Figure 16 A three-dimensional diagram of the other side of the electronic device.

[0028] Figure 18 A schematic diagram illustrating the image captured by the ultra-wide-angle camera module.

[0029] Figure 19 A schematic diagram illustrating the image captured by a high-resolution camera module.

[0030] Figure 20 A schematic diagram illustrating the image captured by a telephoto camera module.

[0031] Figure 21 A perspective view of one side of an electronic device according to a fifth embodiment of the present invention is shown.

[0032] Figure 22 A perspective view of a vehicle tool according to a sixth embodiment of the present invention is shown.

[0033] Figure 23 Draw Figure 22 A partial schematic diagram of the vehicle's tools.

[0034] Figure 24 Draw Figure 22 A side view of the vehicle and its tools.

[0035] Figure 25 Draw Figure 22 A top view diagram of the vehicle and its tools.

[0036] [Symbol Explanation]

[0037] 1, 2, 3: Camera module

[0038] 11, 21, 31: Shell

[0039] 12, 22, 32: Imaging lens group

[0040] 121, 221, 321: Optical axis

[0041] 13, 23, 33: Drive unit

[0042] 131, 231, 331: Fasteners

[0043] 3311: Third Trench Group

[0044] 3311v: Strip-shaped V-groove

[0045] 1312, 2312: Fourth trench group

[0046] 132, 232, 332: Lens carrier

[0047] 1321, 2321: Third trench group

[0048] 2321p: Planar trench

[0049] 1321v, 2321v: Strip-shaped V-groove

[0050] 3322: Fourth Trench Group

[0051] 133, 233, 333: Magnet carrier

[0052] 1331, 2331, 3331: First trench group

[0053] 1332, 2332, 3332: Second trench group

[0054] 1332p, 2332p: Planar trench

[0055] 1332V, 2332V, 3332V: Strip-shaped V-groove

[0056] 134, 234, 334: First Sphere Group

[0057] 134n, 234n, 334n: Sphere

[0058] 135, 235, 335: Second sphere group

[0059] 135n, 235n, 335n: Sphere

[0060] 136a, 236a, 336a: Autofocus magnet

[0061] 136b, 236b, 336b: Autofocus coil

[0062] 137a, 237a, 337a: Image stabilizing magnets

[0063] 137b, 237b, 337b: Image stabilization coil

[0064] 338a: First magnetic element

[0065] 338b: Second magnetic element

[0066] 339a: First position sensing element

[0067] 339b: Second position sensing element

[0068] 14, 24, 34: Circuit elements

[0069] 15, 25, 35: Electronic photosensitive element

[0070] D1: First Direction

[0071] D2: Second Direction

[0072] D3: Third direction

[0073] Electronic devices 4, 5

[0074] Vehicle Tools 6

[0075] Camera modules 40a, 40b, 40c, 50a, 50b, 50c, 50d, 50e, 50f, 50g, 50h, 50z, 60

[0076] Flash modules 41 and 51

[0077] Focusing Assist Module 42

[0078] Image signal processor 43

[0079] Display module 44 Detailed Implementation

[0080] The following detailed description of the features and advantages of the present invention in the embodiments is sufficient to enable any person skilled in the art to understand the technical content of the present invention and implement it accordingly. Based on the disclosure of this specification, the scope of the claims, and the accompanying drawings, any person skilled in the art can easily understand the related objectives and advantages of the present invention. The following embodiments further illustrate the viewpoints of the present invention in detail, but are not intended to limit the scope of the present invention in any way.

[0081] This invention provides a camera module comprising an imaging lens group and a driving device. The imaging lens group has an optical axis. The driving device includes a fixing member, a lens carrier, a magnetic carrier, a first sphere group, and a second sphere group. The imaging lens group is disposed on the lens carrier.

[0082] The magnet carrier has a first set of grooves and a second set of grooves. The first set of grooves extends along a first direction parallel to the optical axis, while the second set of grooves extends along a second direction perpendicular to the optical axis.

[0083] One of the fixing member and the lens carrier has a third groove group, and the other has a fourth groove group. The third groove group extends along a third direction perpendicular to the optical axis and different from the second direction, and is disposed opposite to the second groove group. The fourth groove group extends along a first direction parallel to the optical axis and is disposed opposite to the first groove group.

[0084] The first sphere group is disposed between the first groove group and the fourth groove group, and the imaging lens group can move relative to the fixing member in a first direction via the first sphere group. This allows the imaging lens group to have a longer travel distance relative to the fixing member in the first direction parallel to the optical axis.

[0085] The second spherical group is positioned between the second and third groove groups, and the imaging lens group can move relative to the fixing member on the plane formed by the second and third directions via the second spherical group. This allows the imaging lens group to provide degrees of freedom in a two-dimensional plane using a single set of spherical tracks.

[0086] Furthermore, the second and third directions can be orthogonal to each other, and both the second and third groove groups can make physical contact with the second sphere group. The second sphere group can include at least one sphere, and this at least one sphere can have two-point contact with one of the second and third groove groups, and a single-point contact with the other. The two-point contact restricts the sphere to move only along the direction of the groove group, while the single-point contact provides support and allows the sphere to move within a small plane. This reduces wear between the grooves and the sphere, allows for greater manufacturing tolerances, and improves assembly efficiency. Alternatively, the at least one sphere can also have two-point contact with both the second and third groove groups, simultaneously restricting the sphere to move only along the directions of these two groove groups respectively, improving the linearity of the imaging lens group's movement. This allows the drive device to control the imaging lens group using a simple circuit controller, providing compensation for the distance the image needs to move. The second sphere group may also include at least four spheres, and the second groove group may include at least four grooves, with the at least four spheres respectively disposed within the at least four grooves. This provides more stable support, prevents the imaging lens group from tilting, and improves the stability of movement.

[0087] Furthermore, the second trench group may have at least one V-shaped groove and at least one planar groove, while the third trench group may have at least one V-shaped groove and at least one planar groove. The extension directions of the at least one V-shaped groove in the second trench group and the at least one V-shaped groove in the third trench group may be orthogonal to each other. The at least one V-shaped groove in the second trench group corresponds to the at least one planar groove in the third trench group, and the at least one planar groove in the second trench group corresponds to the at least one V-shaped groove in the third trench group. However, the invention is not limited thereto. In some embodiments, the first trench group, second trench group, third trench group, and fourth trench group may all be any combination of narrower V-shaped grooves and wider planar grooves.

[0088] The above configuration provides the imaging lens group with the freedom to translate in three-dimensional space, achieving automatic focusing and image stabilization. Furthermore, this configuration simplifies the assembly process and ensures high-precision controllability of the drive unit when driving the imaging lens group.

[0089] Specifically, in some embodiments, the third groove group may be possessed by the lens carrier, while the fourth groove group may be possessed by the fixing member. The magnet carrier can move relative to the fixing member in a first direction. The lens carrier can move relative to the magnet carrier in a plane formed by a second direction and a third direction. This provides the travel distance required for autofocusing of the magnet carrier and the travel distance required for image stabilization of the lens carrier, while achieving more efficient space utilization and miniaturization.

[0090] Furthermore, the driving device may also include an autofocus magnet and an autofocus coil. The autofocus magnet may be disposed on a magnet carrier. The autofocus coil may be disposed on a fixing member. The autofocus coil may correspond to the autofocus magnet to provide a driving force for the movement of the magnet carrier in a first direction. This provides the driving force required for the imaging lens assembly to achieve autofocus. The autofocus magnet and autofocus coil may be disposed on one side of the driving device, and a magnetic element may be additionally provided to provide the preload force required for assembly. A position sensing element may also be provided to provide loop control functionality, enabling the imaging lens assembly to achieve focusing more quickly.

[0091] Furthermore, the driving device may also include an image stabilizing magnet and an image stabilizing coil. The image stabilizing magnet may be disposed on the lens carrier. The image stabilizing coil may be disposed on the fixing member. The image stabilizing coil corresponds to the image stabilizing magnet to provide a driving force for the lens carrier to move in the plane formed by the second and third directions. This provides the driving force required for the imaging lens assembly to achieve image stabilization. The image stabilizing magnet and the image stabilizing coil may be disposed on two sides of the driving device, and additional magnetic elements may be provided to provide the preload force required for assembly. A position sensing element may also be provided to provide loop control functionality, enabling the imaging lens assembly to achieve image stabilization compensation more sensitively.

[0092] In other embodiments, the third groove group may be possessed by the fixing member, and the fourth groove group may be possessed by the lens carrier. The magnet carrier is movable relative to the fixing member in a plane formed by the second and third directions. The lens carrier is movable relative to the magnet carrier in the first direction. This provides the travel distance required for autofocusing of the lens carrier and the travel distance required for image stabilization of the magnet carrier, reducing the total weight of the components required for autofocusing, thereby achieving fast focusing and reduced power consumption.

[0093] Furthermore, the driving device may also include an autofocus magnet and an autofocus coil. The autofocus magnet may be disposed on the lens carrier. The autofocus coil may be disposed on a fixing member. The autofocus coil may correspond to the autofocus magnet to provide a driving force for moving the lens carrier in a first direction. In this way, the driving force required for the imaging lens group to achieve autofocus can be provided.

[0094] Furthermore, the driving device may also include an image stabilizing magnet and an image stabilizing coil. The image stabilizing magnet may be disposed on a magnet carrier. The image stabilizing coil may be disposed on a fixing member. The image stabilizing coil corresponds to the image stabilizing magnet to provide a driving force for the magnet carrier to move in the plane formed by the second and third directions. In this way, the driving force required for the imaging lens assembly to achieve image stabilization can be provided.

[0095] The various technical features in the camera module of the present invention can be combined and configured to achieve the corresponding effects.

[0096] Based on the above implementation methods, specific embodiments are presented below and described in detail with reference to the accompanying drawings.

[0097] <First Embodiment>

[0098] Please refer to Figures 1 to 6 ,in Figure 1 This is a perspective view of a camera module according to the first embodiment of the present invention. Figure 2 yes Figure 1 A schematic diagram of the camera module after it has been cut open. Figure 3 yes Figure 1 A schematic diagram of the camera module after being cut in another way. Figure 4 yes Figure 1 An exploded view of the camera module. Figure 5 yes Figure 1 Another exploded view of the camera module, and Figure 6 yes Figure 1 A schematic diagram showing the correspondence between the lens carrier and the magnet carrier of the camera module.

[0099] In this embodiment, the camera module 1 includes a housing 11, an imaging lens group 12, a driving device 13, a circuit element 14, and an electronic photosensitive element 15. The housing 11 has an accommodating space (not otherwise labeled) to accommodate the imaging lens group 12, the driving device 13, the circuit element 14, and the electronic photosensitive element 15. The imaging lens group 12 has an optical axis 121. The driving device 13 includes a fixing member 131, a lens carrier 132, a magnet carrier 133, a first sphere group 134, a second sphere group 135, an autofocus magnet 136a, an autofocus coil 136b, two image stabilizing magnets 137a, and two image stabilizing coils 137b. The imaging lens group 12 is disposed within the lens carrier 132.

[0100] The magnet carrier 133 has a first groove group 1331 and a second groove group 1332. The first groove group 1331 extends along a first direction D1 parallel to the optical axis 121, while the second groove group 1332 extends along a second direction D2 perpendicular to the optical axis 121.

[0101] The lens carrier 132 has a third groove group 1321, while the fixing member 131 has a fourth groove group 1312. The third groove group 1321 extends along a third direction D3 perpendicular to the optical axis 121 and orthogonal to the second direction D2, and is disposed opposite to the second groove group 1332. The fourth groove group 1312 extends along a first direction D1 parallel to the optical axis 121, and is disposed opposite to the first groove group 1331.

[0102] The first sphere group 134 comprises four spheres 134n. The spheres 134n are disposed between the first groove group 1331 and the fourth groove group 1312. In this way, the magnet carrier 133 can move relative to the fixing member 131 in the first direction D1, and the imaging lens group 12 can move relative to the fixing member 131 in the first direction D1 through the lens carrier 132, the magnet carrier 133 and the first sphere group 134.

[0103] The second sphere group 135 comprises four spheres 135n. The second groove group 1332 comprises two strip-shaped V-shaped grooves 1332v and two planar grooves 1332p, and the third groove group 1321 comprises four strip-shaped V-shaped grooves 1321v. Two spheres 135n respectively have single-point solid contact with the planar groove 1332p between the second groove group 1332 and the third groove group 1321, while each sphere 135n respectively has two-point solid contact with two of the strip-shaped V-shaped grooves 1321v between the second groove group 1332 and the third groove group 1321. Figure 2 As shown. The other two spheres 135n are in solid contact at two points between the second groove group 1332 and the third groove group 1321, respectively, with the strip-shaped V-groove 1332v and the other two strip-shaped V-grooves 1321v, as shown. Figure 3As shown. In this way, the lens carrier 132 can move relative to the magnet carrier 133 on the plane formed by the second direction D2 and the third direction D3, and the imaging lens group 12 can move relative to the fixing member 131 on the plane formed by the second direction D2 and the third direction D3 through the lens carrier 132 and the second sphere group 135.

[0104] An autofocus magnet 136a is disposed on one side of the magnet carrier 133. An autofocus coil 136b is indirectly disposed on one side of the fixing member 131 via a circuit element 14. The autofocus coil 136b corresponds to the autofocus magnet 136a to provide a driving force for the magnet carrier 133 to move in the first direction D1.

[0105] Image stabilizing magnets 137a are disposed on two sides of the lens carrier 132. Image stabilizing coils 137b are indirectly disposed on two sides of the fixing member 131 via circuit elements 14. Image stabilizing coils 137b correspond to image stabilizing magnets 137a to provide driving force for the lens carrier 132 to move in the plane formed by the second direction D2 and the third direction D3.

[0106] Circuit element 14 is disposed on fixture 131. Circuit element 14 is electrically connected to autofocus coil 136b and image stabilization coil 137b to provide control signals to autofocus coil 136b and image stabilization coil 137b.

[0107] An electronic photosensitive element 15 is disposed on an imaging surface (not shown) of an imaging lens group 12 to receive optical image signals imaged on the imaging surface by the imaging lens group 12, and convert the optical image signals into electronic image signals to output the electronic image signals as image data.

[0108] <Second Embodiment>

[0109] Please refer to Figures 7 to 12 ,in Figure 7 This is a perspective view of a camera module according to a second embodiment of the present invention. Figure 8 yes Figure 7 A schematic diagram of the camera module after it has been cut open. Figure 9 yes Figure 7 A schematic diagram of the camera module after being cut in another way. Figure 10 yes Figure 7 An exploded view of the camera module. Figure 11 yes Figure 7 Another exploded view of the camera module, and Figure 12 yes Figure 7 A schematic diagram showing the correspondence between the lens carrier and the magnet carrier of the camera module.

[0110] In this embodiment, the camera module 2 includes a housing 21, an imaging lens group 22, a driving device 23, a circuit element 24, and an electronic photosensitive element 25. The housing 21 has an accommodating space (not otherwise labeled) to accommodate the imaging lens group 22, the driving device 23, the circuit element 24, and the electronic photosensitive element 25. The imaging lens group 22 has an optical axis 221. The driving device 23 includes a fixing member 231, a lens carrier 232, a magnet carrier 233, a first sphere group 234, a second sphere group 235, an autofocus magnet 236a, an autofocus coil 236b, two image stabilizing magnets 237a, and two image stabilizing coils 237b. The imaging lens group 22 is disposed within the lens carrier 232.

[0111] The magnet carrier 233 has a first groove group 2331 and a second groove group 2332. The first groove group 2331 extends along a first direction D1 parallel to the optical axis 221, while the second groove group 2332 extends along a second direction D2 perpendicular to the optical axis 221.

[0112] The lens carrier 232 has a third groove group 2321, while the fixing member 231 has a fourth groove group 2312. The third groove group 2321 extends along a third direction D3 perpendicular to the optical axis 221 and orthogonal to the second direction D2, and is disposed opposite to the second groove group 2332. The fourth groove group 2312 extends along a first direction D1 parallel to the optical axis 221, and is disposed opposite to the first groove group 2331.

[0113] The first sphere group 234 comprises four spheres 234n. The spheres 234n are disposed between the first groove group 2331 and the fourth groove group 2312. In this way, the magnet carrier 233 can move relative to the fixing member 231 in the first direction D1, and the imaging lens group 22 can move relative to the fixing member 231 in the first direction D1 through the lens carrier 232, the magnet carrier 233 and the first sphere group 234.

[0114] The second sphere group 235 comprises six spheres 235n. The second groove group 2332 comprises three strip-shaped V-shaped grooves 2332v and three planar grooves 2332p, and the third groove group 2321 comprises three strip-shaped V-shaped grooves 2321v and three planar grooves 2321p. Three spheres 235n have two-point solid contact with the strip-shaped V-shaped grooves 2332v between the second groove group 2332 and the third groove group 2321, while each sphere has a single-point solid contact with the planar grooves 2321p between the second groove group 2332 and the third groove group 2321. Figure 8As shown. The other three spheres 235n have single-point solid contact with the planar groove 2332p between the second groove group 2332 and the third groove group 2321, respectively, and have two-point solid contact with the V-shaped groove 2321v between the second groove group 2332 and the third groove group 2321, respectively. Figure 9 As shown. In this way, the lens carrier 232 can move relative to the magnet carrier 233 on the plane formed by the second direction D2 and the third direction D3, and the imaging lens group 22 can move relative to the fixing member 231 on the plane formed by the second direction D2 and the third direction D3 through the lens carrier 232 and the second sphere group 235.

[0115] An autofocus magnet 236a is disposed on one side of the magnet carrier 233. An autofocus coil 236b is indirectly disposed on one side of the fixing member 231 via a circuit element 24. The autofocus coil 236b corresponds to the autofocus magnet 236a to provide a driving force for the magnet carrier 233 to move in the first direction D1.

[0116] Image stabilizing magnets 237a are disposed on two sides of the lens carrier 232. Image stabilizing coils 237b are indirectly disposed on two sides of the fixing member 231 via circuit elements 24. Image stabilizing coils 237b correspond to image stabilizing magnets 237a to provide driving force for the lens carrier 232 to move in the plane formed by the second direction D2 and the third direction D3.

[0117] Circuit element 24 is disposed on fixture 231. Circuit element 24 is electrically connected to autofocus coil 236b and image stabilization coil 237b to provide control signals to autofocus coil 236b and image stabilization coil 237b.

[0118] An electronic photosensitive element 25 is disposed on an imaging surface (not shown) of an imaging lens group 22 to receive optical image signals imaged on the imaging surface by the imaging lens group 22, and convert the optical image signals into electronic image signals to output the electronic image signals as image data.

[0119] <Third Embodiment>

[0120] Please refer to Figures 13 to 15 ,in Figure 13 This is a perspective view of a camera module according to a third embodiment of the present invention. Figure 14 yes Figure 13 An exploded view of the camera module, and Figure 15 yes Figure 13 A schematic diagram showing the correspondence between the magnet carrier and the fixing component of the camera module.

[0121] In this embodiment, the camera module 3 includes a housing 31, an imaging lens group 32, a driving device 33, two circuit elements 34, and an electronic photosensitive element 35. The housing 31 has an accommodating space (not otherwise labeled) to accommodate the imaging lens group 32, the driving device 33, the circuit elements 34, and the electronic photosensitive element 35. The imaging lens group 32 has an optical axis 321. The driving device 33 includes a fixing member 331, a lens carrier 332, a magnet carrier 333, a first sphere group 334, a second sphere group 335, an autofocus magnet 336a, an autofocus coil 336b, two image stabilizing magnets 337a, two image stabilizing coils 337b, a first magnetic element 338a, two second magnetic elements 338b, a first position sensing element 339a, and two second position sensing elements 339b. The imaging lens group 32 is disposed within the lens carrier 332.

[0122] The magnet carrier 333 has a first groove group 3331 and a second groove group 3332. The first groove group 3331 extends along a first direction D1 parallel to the optical axis 321, while the second groove group 3332 extends along a second direction D2 perpendicular to the optical axis 321.

[0123] The fixing member 331 has a third groove group 3311, while the lens carrier 332 has a fourth groove group 3322. The third groove group 3311 extends along a third direction D3 perpendicular to the optical axis 321 and orthogonal to the second direction D2, and is disposed opposite to the second groove group 3332. The fourth groove group 3322 extends along a first direction D1 parallel to the optical axis 321, and is disposed opposite to the first groove group 3331.

[0124] The first sphere group 334 comprises six spheres 334n. The spheres 334n are disposed between the first groove group 3331 and the fourth groove group 3322. In this way, the lens carrier 332 can move relative to the magnetic carrier 333 in the first direction D1, and thus the imaging lens group 32 can move relative to the fixing member 331 in the first direction D1 through the lens carrier 332 and the first sphere group 334.

[0125] The second sphere group 335 comprises four spheres 335n. The second groove group 3332 comprises four strip-shaped V-grooves 3332v, and the third groove group 3311 comprises four strip-shaped V-grooves 3311v. Each sphere 335n makes two-point solid contact with both the strip-shaped V-grooves 3332v and 3311v, respectively, between the second groove group 3332 and the third groove group 3311. In this way, the magnet carrier 333 can move relative to the fixing member 331 on the plane formed by the second direction D2 and the third direction D3, thereby allowing the imaging lens group 32 to move relative to the fixing member 331 on the plane formed by the second direction D2 and the third direction D3 via the lens carrier 332, the magnet carrier 333, and the second sphere group 335.

[0126] An autofocus magnet 336a is disposed on one side of the lens carrier 332. An autofocus coil 336b is indirectly disposed on one side of the fixing member 331 via one of the circuit elements 34. The autofocus coil 336b corresponds to the autofocus magnet 336a to provide a driving force for the lens carrier 332 to move in the first direction D1.

[0127] The first magnetic element 338a is configured to correspond to the autofocus magnet 336a and the autofocus coil 336b to provide the preload force required for assembly. The first position sensing element 339a is disposed in the autofocus coil 336b to provide loop control.

[0128] Image stabilizing magnets 337a are disposed on two sides of the magnet carrier 333. Image stabilizing coils 337b are indirectly disposed on two sides of the fixture 331 via another circuit element 34. Image stabilizing coils 337b correspond to image stabilizing magnets 337a to provide driving force for the magnet carrier 333 to move in the plane formed by the second direction D2 and the third direction D3.

[0129] The second magnetic element 338b is configured to correspond to the image stabilizing magnet 337a and the image stabilizing coil 337b to provide the preload force required for assembly. The second position sensing element 339b is respectively disposed in the image stabilizing coil 337b to provide loop control.

[0130] Circuit element 34 is disposed on fixture 331. Circuit element 34 is electrically connected to autofocus coil 336b and image stabilization coil 337b to provide control signals to autofocus coil 336b and image stabilization coil 337b.

[0131] An electronic photosensitive element 35 is disposed on an imaging surface (not shown) of an imaging lens group 32 to receive optical image signals imaged on the imaging surface by the imaging lens group 32, and convert the optical image signals into electronic image signals to output the electronic image signals as image data.

[0132] <Fourth Embodiment>

[0133] Please refer to Figure 16 and Figure 17 ,in Figure 16 A perspective view of one side of an electronic device according to a fourth embodiment of the present invention is shown, and Figure 17 Draw Figure 16 A three-dimensional diagram of the other side of the electronic device.

[0134] In this embodiment, the electronic device 4 is a smartphone. The electronic device 4 includes multiple camera modules, a flash module 41, a focus assist module 42, an image signal processor 43, a display module (user interface) 44, and an image software processor (not shown separately).

[0135] These camera modules include an ultra-wide-angle camera module 40a, a high-resolution camera module 40b, and a telephoto camera module 40c. At least one of camera modules 40a, 40b, and 40c is a camera module of this invention.

[0136] The ultra-wide-angle camera module 40a has the ability to capture multiple scenes. Figure 18 A schematic diagram illustrating images captured by the ultra-wide-angle camera module 40a.

[0137] The high-resolution camera module 40b features high resolution and low distortion. The high-resolution camera module 40b can further capture… Figure 18 A portion of the image. Figure 19 A schematic diagram illustrating images captured by a high-resolution camera module 40b.

[0138] The telephoto camera module 40c features high magnification. The telephoto camera module 40c can further capture... Figure 19 A portion of the image. Figure 20 A schematic diagram illustrating the image captured by the telephoto camera module 40c.

[0139] When the user photographs a subject, the electronic device 4 uses the ultra-wide-angle camera module 40a, the high-resolution camera module 40b, or the telephoto camera module 40c to focus the light and capture an image. It also activates the flash module 41 for supplemental lighting and uses the subject distance information provided by the focus assist module 42 for rapid focusing. Furthermore, the image signal processor 43 performs image optimization processing to further improve the image quality produced by the camera module, while also providing zoom functionality. The focus assist module 42 can employ an infrared or laser focus assist system to achieve rapid focusing. The display module 44 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 44.

[0140] <Fifth Embodiment>

[0141] Please refer to Figure 21 This is a perspective view illustrating one side of an electronic device according to a fifth embodiment of the present invention.

[0142] In this embodiment, the electronic device 5 is a smartphone. The electronic device 5 includes camera modules 50z, 50a, 50b, 50c, 50d, 50e, 50f, 50g, and 50h, a flash module 51, an image signal processor, a display device, and an image software processor (not shown separately). Camera modules 50z, 50a, 50b, 50c, 50d, 50e, 50f, 50g, and 50h are all disposed on the same side of the electronic device 5, while the display device is disposed on the other side of the electronic device 5. At least one of the camera modules 50z, 50a, 50b, 50c, 50d, 50e, 50f, 50g, and 50h is a camera module of the present invention.

[0143] Camera module 50z is a telephoto camera module, camera module 50a is a telephoto camera module, camera module 50b is a telephoto camera module, camera module 50c is a telephoto camera module, camera module 50d is a wide-angle camera module, camera module 50e is a wide-angle camera module, camera module 50f is an ultra-wide-angle camera module, camera module 50g is an ultra-wide-angle camera module, and camera module 50h is a Time-of-Flight (ToF) camera module. In this embodiment, camera modules 50z, 50a, 50b, 50c, 50d, 50e, 50f, and 50g have different viewing angles, allowing the electronic device 5 to provide different magnifications to achieve optical zoom shooting effects. Furthermore, camera modules 50z and 50a are telephoto camera modules with light-shifting elements. Additionally, camera module 50h can acquire depth information from images. The electronic device 5 described above includes multiple camera modules 50z, 50a, 50b, 50c, 50d, 50e, 50f, 50g, and 50h as an example, but the number and configuration of the camera modules are not intended to limit the present invention. When the user photographs the subject, the electronic device 5 uses camera modules 50z, 50a, 50b, 50c, 50d, 50e, 50f, 50g, or 50h to focus light and capture an image, activates the flash module 51 for supplemental lighting, and performs subsequent processing in a manner similar to the aforementioned embodiments, which will not be described in detail here.

[0144] <Sixth Embodiment>

[0145] Please refer to Figures 22 to 25 ,in Figure 22 A perspective view of a vehicle tool according to a sixth embodiment of the present invention is shown. Figure 23 Draw Figure 22 A partial schematic diagram of the vehicle's tools. Figure 24 Draw Figure 22 A side view of the vehicle tools, and Figure 25 Draw Figure 22 A top view diagram of the vehicle and its tools.

[0146] In this embodiment, the vehicle tool 6 is a car. The vehicle tool 6 includes a plurality of vehicle camera modules 60, and these camera modules 60 are, for example, the camera modules of the present invention, which can be applied, for example, to a panoramic driving assistance system, a driving recorder, and a reversing camera.

[0147] like Figure 22 and Figure 23As shown, the camera module 60 can be positioned, for example, below the left and right rearview mirrors, in front of the vehicle, and behind the vehicle, to capture images of the vehicle's surroundings. The images can be combined into a panoramic view by the image software processor, providing images of the driver's blind spots, allowing the driver to monitor the situation around the vehicle, which is beneficial for driving and parking.

[0148] like Figure 24 As shown, for example, the camera modules 60, which are respectively set below the left and right rearview mirrors, can have a viewing angle of 40 degrees to 90 degrees, in order to capture image information within the range of the left and right lanes.

[0149] like Figure 25 As shown, the camera module 60 can also be installed, for example, inside the mirrors of the left and right rearview mirrors and inside the front and rear windshields, thereby helping the driver obtain information about the external space outside the cockpit, providing more perspectives to reduce blind spots and improve driving safety.

[0150] The camera module of this invention is not limited to applications in smartphones, panoramic driving assistance systems, dashcams, and reversing cameras. It can be applied to various mobile focusing systems as needed, and features excellent aberration correction and good image quality. For example, the camera module can be used in a wide range of electronic devices, including 3D image capture, digital cameras, mobile devices, tablet computers, smart TVs, network monitoring equipment, multi-lens devices, recognition systems, motion-sensing game consoles, and wearable devices. The aforementioned electronic devices and vehicle tools are merely illustrative examples of practical applications of this invention and do not limit the scope of application of the camera module.

[0151] Although the present invention has been disclosed above with reference to the foregoing embodiments, it is not intended to limit the present invention. Any person skilled in the art may make some modifications and refinements without departing from the spirit and scope of the present invention. Therefore, the scope of patent protection of the present invention shall be determined by the claims appended to this specification.

Claims

1. A camera module characterized by comprising: The image lens group comprises: an optical axis; and a driving device comprising: a fixed member; a lens carrier, wherein the image lens group is disposed on the lens carrier; a magnet carrier having a first groove set and a second groove set, wherein the first groove set extends along a first direction parallel to the optical axis, and the second groove set extends along a second direction perpendicular to the optical axis; a first ball set disposed in the first groove set; and a second ball set disposed in the second groove set; wherein one of the fixed member and the lens carrier has a third groove set and the other has a fourth groove set; the third groove set extends along a third direction perpendicular to the optical axis and different from the second direction, and is disposed opposite to the second groove set, the second ball set is disposed in the third groove set, and the image lens group is movable relative to the fixed member in a plane formed by the third direction and the second direction by the second ball set; the fourth groove set extends along the first direction parallel to the optical axis and is disposed opposite to the first groove set, the first ball set is disposed in the fourth groove set, and the image lens group is movable relative to the fixed member in the first direction by the first ball set; wherein the third direction and the second direction are orthogonal to each other, the second ball set comprises at least one ball, the at least one ball has two-point contact with one of the third groove set and the second groove set and single-point contact with the other, and the third groove set and the second groove set are in physical contact with the second ball set.

2. The camera module according to claim 1, characterized in that, The lens carrier has the third groove set, and the lens carrier is movable relative to the magnet carrier in the plane formed by the third direction and the second direction; the fixed member has the fourth groove set, and the magnet carrier is movable relative to the fixed member in the first direction.

3. The camera module of claim 2, wherein, The driving device further comprises: an autofocus magnet disposed on the magnet carrier; and an autofocus coil disposed on the fixed member, wherein the autofocus coil corresponds to the autofocus magnet to provide driving force for moving the magnet carrier in the first direction.

4. The camera module of claim 2, wherein, The driving device further comprises: an image stabilization magnet disposed on the lens carrier; and an image stabilization coil disposed on the fixed member, wherein the image stabilization coil corresponds to the image stabilization magnet to provide driving force for moving the lens carrier in the plane formed by the third direction and the second direction.

5. The camera module of claim 1, wherein, The fixed member has the third groove set, and the magnet carrier is movable relative to the fixed member in the plane formed by the third direction and the second direction; the lens carrier has the fourth groove set, and the lens carrier is movable relative to the magnet carrier in the first direction.

6. The camera module of claim 5, wherein, The driving device further comprises: an autofocus magnet disposed on the lens carrier; and an autofocus coil disposed on the fixed member, wherein the autofocus coil corresponds to the autofocus magnet to provide driving force for moving the lens carrier in the first direction. An autofocus coil disposed on the fixed member, wherein the autofocus coil corresponds to the autofocus magnet to provide a driving force for moving the lens carrier in the first direction.

7. The camera module of claim 5, wherein, The driving device further comprises: An image stabilization magnet disposed on the magnet carrier; and An image stabilization coil disposed on the fixed member, wherein the image stabilization coil corresponds to the image stabilization magnet to provide a driving force for moving the magnet carrier in a plane formed by the third direction and the second direction.

8. An electronic device, comprising: A camera module comprising the camera module according to claim 1.

9. A vehicle implement characterized by A camera module comprising the camera module according to claim 1.

10. A camera module characterized by comprising: An imaging lens group having an optical axis; and A driving device comprising: A fixed member; A lens carrier, wherein the imaging lens group is disposed on the lens carrier; A magnet carrier having a first groove set and a second groove set, wherein the first groove set extends along a first direction parallel to the optical axis, and the second groove set extends along a second direction perpendicular to the optical axis; A first ball set disposed in the first groove set; and A second ball set disposed in the second groove set; wherein one of the fixed member and the lens carrier has a third groove set and the other has a fourth groove set; the third groove set extends along a third direction perpendicular to the optical axis and different from the second direction and is disposed opposite to the second groove set, the second ball set is disposed in the third groove set, and the imaging lens group is movable relative to the fixed member in a plane formed by the third direction and the second direction through the second ball set; the fourth groove set extends along the first direction parallel to the optical axis and is disposed opposite to the first groove set, the first ball set is disposed in the fourth groove set, and the imaging lens group is movable relative to the fixed member in the first direction through the first ball set; wherein the second groove set has at least one strip-shaped V-groove and at least one planar groove, the third groove set has at least one strip-shaped V-groove and at least one planar groove, the at least one strip-shaped V-groove of the second groove set and the at least one strip-shaped V-groove of the third groove set are orthogonal to each other in the extending direction, the at least one strip-shaped V-groove of the second groove set corresponds to the at least one planar groove of the third groove set, and the at least one planar groove of the second groove set corresponds to the at least one strip-shaped V-groove of the third groove set. The lens carrier has the third groove set, and the lens carrier is movable relative to the magnet carrier in the plane formed by the third direction and the second direction; the fixed member has the fourth groove set, and the magnet carrier is movable relative to the fixed member in the first direction.

11. The camera module of claim 10, wherein, The driving device further comprises:

12. The camera module of claim 11, wherein, An autofocus magnet disposed on the magnet carrier; and An autofocus coil disposed on the fixed member, wherein the autofocus coil corresponds to the autofocus magnet to provide a driving force for moving the lens carrier in the first direction. An autofocus coil disposed on the fixed member, wherein the autofocus coil corresponds to the autofocus magnet to provide a driving force for moving the magnet carrier in the first direction.

13. The camera module of claim 11, wherein, The driving device further comprises: An image stabilization magnet disposed on the lens carrier; and An image stabilization coil disposed on the fixed member, wherein the image stabilization coil corresponds to the image stabilization magnet to provide a driving force for moving the lens carrier in a plane formed by the third direction and the second direction.

14. The camera module of claim 10, wherein, The fixed member has the third groove set, and the magnet carrier is movable relative to the fixed member in a plane formed by the third direction and the second direction; the lens carrier has the fourth groove set, and the lens carrier is movable relative to the magnet carrier in the first direction.

15. The camera module of claim 14, wherein, The driving device further comprises: An autofocus magnet disposed on the lens carrier; and An autofocus coil disposed on the fixed member, wherein the autofocus coil corresponds to the autofocus magnet to provide a driving force for moving the lens carrier in the first direction.

16. The camera module of claim 14, wherein, The driving device further comprises: An image stabilization magnet disposed on the magnet carrier; and An image stabilization coil disposed on the fixed member, wherein the image stabilization coil corresponds to the image stabilization magnet to provide a driving force for moving the magnet carrier in a plane formed by the third direction and the second direction.

17. The camera module of claim 10, wherein, The second groove set comprises at least four grooves, the second ball set comprises at least four balls, and the at least four balls are respectively disposed in the at least four grooves.

Images