Imaging lens module and electronic device

Abstract

The present invention discloses an imaging lens module, which includes an imaging lens, a light deflecting element, and a sensing magnet group. The imaging lens includes a plastic lens barrel and a plastic lens group, and has an optical axis. The plastic lens group is accommodated in the plastic lens barrel, and the optical axis passes through the plastic lens group. The light deflecting element is used to deflect an incident light path into the imaging lens and coincide with the optical axis. The sensing magnet group includes two sensing magnets. The sensing magnets are sequentially arranged on the plastic lens barrel in a direction parallel to the optical axis. The sensing magnets are located on the same side relative to a reference plane, the reference plane passes through the optical axis, and the normal direction of the reference plane is perpendicular to the optical axis. When the sensing magnets are observed in a direction parallel to the optical axis, the images of the sensing magnets at least partially overlap. Two adjacent magnetic poles of the sensing magnets are of the same polarity, and a repulsive force exists between the magnetic poles. The present invention also discloses an electronic device having the above-mentioned imaging lens module.

Description

Technical Field

[0001] The present invention relates to an imaging lens module and an electronic device, and in particular to an imaging lens module suitable for an electronic device. Background Art

[0002] As semiconductor processing technology continues to improve, the performance of electronic photosensitive components has increased, allowing pixels to achieve smaller sizes. Therefore, optical lenses with high imaging quality have become indispensable. Furthermore, with the rapid advancement of technology, the application range of electronic devices equipped with optical lenses has become wider, and the requirements for optical lenses have also become more diverse.

[0003] In recent years, electronic products have been trending towards becoming thinner and lighter. However, traditional optical lenses have struggled to simultaneously meet the demands for miniaturization and high image quality, especially for telephoto lenses with long focal lengths. Existing telephoto lenses suffer from drawbacks such as poor zoom positioning, making them unable to meet current market demands. Therefore, improving the zoom positioning accuracy of telephoto lenses to meet the high standards required of today's electronic devices has become a key issue in the relevant field. Summary of the Invention

[0004] In view of the above-mentioned problems, the present invention discloses an imaging lens module and an electronic device, which are helpful to improve the accuracy of zoom positioning.

[0005] An imaging lens module disclosed in one embodiment of the present invention includes at least one imaging lens, a light deflecting element, and a sensing magnet assembly. The at least one imaging lens includes at least one plastic lens barrel and at least one plastic lens assembly, and has an optical axis. The at least one plastic lens assembly is housed within the at least one plastic lens barrel, with the optical axis passing through the at least one plastic lens assembly. The light deflecting element is used to deflect an incident light path into the at least one imaging lens so that it coincides with the optical axis. The sensing magnet assembly includes at least two sensing magnets. The at least two sensing magnets are sequentially arranged on the at least one plastic lens barrel in a direction parallel to the optical axis. The at least two sensing magnets are located on the same side relative to a reference plane, which passes through the optical axis and has a normal direction perpendicular to the optical axis. When the at least two sensing magnets are observed in a direction parallel to the optical axis, the images of the at least two sensing magnets at least partially overlap. Two adjacent magnetic poles of the at least two sensing magnets are of the same polarity, and a repulsive force exists between the adjacent magnetic poles of the same polarity. The shortest distance between two magnetic poles of the same polarity among the at least two sensing magnets in a direction parallel to the optical axis is Dp, the longest distance between two magnetic poles of the at least two sensing magnets in a direction parallel to the optical axis is Dm, and the total number of the at least two sensing magnets is Nt, which satisfies the following conditions:

[0006] 0.1 <Nt×Dp / (Dm-(Nt-1)×Dp)<3.2。

[0007] Another embodiment of the present invention discloses an electronic device comprising the aforementioned imaging lens module and an electronic photosensitive element, wherein the electronic photosensitive element is disposed on an imaging surface of the imaging lens module and is configured to convert light passing through the at least one imaging lens into an image signal.

[0008] When Nt×Dp / (Dm−(Nt−1)×Dp) satisfies the above conditions, the continuity of the magnetic flux density between the sensing magnets can be ensured, which helps to accurately locate the position of the at least one plastic lens barrel.

[0009] The above description of the content of the present invention and the following description of the embodiments are used to demonstrate and explain the principles of the present invention, and to provide further explanation of the scope of the patent application of the present invention. BRIEF DESCRIPTION OF THE DRAWINGS

[0010] Figure 1 FIG. 1 is a perspective schematic diagram of an imaging lens module according to a first embodiment of the present invention.

[0011] Figure 2 for Figure 1 A partially exploded diagram of the imaging lens module.

[0012] Figure 3 for Figure 1 Schematic diagram of the exploded imaging lens module.

[0013] Figure 4 for Figure 1 Another exploded schematic diagram of the imaging lens module.

[0014] Figure 5 for Figure 1 Schematic diagram of the front configuration relationship of the flexible printed circuit board, drive coil group, Hall sensing element group and sensing magnet group of the imaging lens module.

[0015] Figure 6 for Figure 1 Schematic diagram of the lateral configuration relationship of the flexible printed circuit board, drive coil group, Hall sensing element group and sensing magnet group of the imaging lens module.

[0016] Figure 7 The figure is a graph showing the magnetic flux density and the output voltage according to the configuration relationship among the driving coil group, the Hall sensing element group and the sensing magnet group.

[0017] Figure 8 FIG. 4 is a perspective schematic diagram of an imaging lens module according to a second embodiment of the present invention.

[0018] Figure 9 for Figure 8A partially exploded diagram of the imaging lens module.

[0019] Figure 10 for Figure 8 Schematic diagram of the exploded imaging lens module.

[0020] Figure 11 for Figure 8 Another exploded schematic diagram of the imaging lens module.

[0021] Figure 12 for Figure 8 Schematic diagram of the front configuration relationship of the flexible printed circuit board, drive coil group, Hall sensing element group and sensing magnet group of the imaging lens module.

[0022] Figure 13 for Figure 8 Schematic diagram of the lateral configuration relationship of the flexible printed circuit board, drive coil group, Hall sensing element group and sensing magnet group of the imaging lens module.

[0023] Figure 14 The figure is a graph showing the magnetic flux density and the output voltage according to the configuration relationship among the driving coil group, the Hall sensing element group and the sensing magnet group.

[0024] Figure 15 FIG. 4 is a schematic perspective view of an imaging lens module according to a third embodiment of the present invention.

[0025] Figure 16 for Figure 15 A partially exploded diagram of the imaging lens module.

[0026] Figure 17 for Figure 15 Schematic diagram of the exploded imaging lens module.

[0027] Figure 18 for Figure 15 Another exploded schematic diagram of the imaging lens module.

[0028] Figure 19 for Figure 15 Schematic diagram of the front configuration relationship of the flexible printed circuit board, drive coil group, Hall sensing element group and sensing magnet group of the imaging lens module.

[0029] Figure 20 for Figure 15 Schematic diagram of the lateral configuration relationship of the flexible printed circuit board, drive coil group, Hall sensing element group and sensing magnet group of the imaging lens module.

[0030] Figure 21 The figure is a graph showing the magnetic flux density and the output voltage according to the configuration relationship among the driving coil group, the Hall sensing element group and the sensing magnet group.

[0031] Figure 22 FIG. 4 is a schematic perspective view of an imaging lens module according to a fourth embodiment of the present invention.

[0032] Figure 23 for Figure 22 Schematic diagram of the exploded imaging lens module.

[0033] Figure 24 for Figure 22 Another exploded schematic diagram of the imaging lens module.

[0034] Figure 25 for Figure 22 Schematic diagram of the front configuration relationship of the flexible printed circuit board, drive coil group, Hall sensing element group and sensing magnet group of the imaging lens module.

[0035] Figure 26 for Figure 22 Schematic diagram of the lateral configuration relationship of the flexible printed circuit board, drive coil group, Hall sensing element group and sensing magnet group of the imaging lens module.

[0036] Figure 27 The figure is a graph showing the magnetic flux density and the output voltage according to the configuration relationship among the driving coil group, the Hall sensing element group and the sensing magnet group.

[0037] Figure 28 FIG. 1 is an exploded schematic diagram of a camera module according to a fifth embodiment of the present invention.

[0038] Figure 29 for Figure 28 Another exploded diagram of the camera module.

[0039] Figure 30 A schematic three-dimensional diagram of one side of an electronic device according to a sixth embodiment of the present invention is shown.

[0040] Figure 31 Draw Figure 30 A three-dimensional schematic diagram of the other side of the electronic device.

[0041] Figure 32 A schematic diagram illustrating image capture using an ultra-wide-angle camera module.

[0042] Figure 33 A schematic diagram illustrating image capture using a high-pixel camera module.

[0043] Figure 34 A schematic diagram illustrating image capture using a telephoto camera module is shown.

[0044] Figure 35 A schematic three-dimensional diagram of one side of an electronic device according to a seventh embodiment of the present invention is shown.

[0045]

Explanation of symbols

[0046] 1, 2, 3, 4, 5…imaging lens module

[0047] 10, 20, 30, 40... base

[0048] 101, 201, 301, 401...guide grooves

[0049] 11, 21, 31, 41… frame elements

[0050] 12, 22, 32, 42... rolling support parts

[0051] 13, 23, 33, 43... movable imaging lenses

[0052] 131, 231, 331, 431... movable plastic lens barrel

[0053] 1311, 2311, 3311, 4311...guide groove

[0054] 132, 232, 332, 432... movable plastic lens set

[0055] 14, 34, 44... fixed imaging lens

[0056] 141, 341, 441...Fixed plastic lens barrel

[0057] 142, 342, 442...Fixed plastic lens assembly

[0058] 15, 25, 35, 45... light deflection elements

[0059] 16, 26, 36, 46...sensing magnet group

[0060] 161, 261, 361, 461…first sensing magnet

[0061] 162, 262, 362, 462…Second sensing magnet

[0062] 463…Third sensing magnet

[0063] 17, 27, 37, 47…Flexible printed circuit boards

[0064] 18, 28, 38, 48... driving coil group

[0065] 181, 182, 183, 184, 185, 186, 281, 282, 283, 381, 382, ​​383, 384, 385, 386, 481, 482, 483, 484, 485, 486... driving coils

[0066] 19, 29, 39, 49...Hall sensing element group

[0067] 191, 192, 193, 194, 195, 196, 291, 292, 293, 391, 392, 393, 394, 395, 396, 491, 492, 493, 494, 495, 496... Hall effect sensors

[0068] C5, 60a, 60b, 60c, 70a, 70b, 70c, 70d, 70e, 70f, 70g, 70h… camera module

[0069] 5a…Optical image stabilization

[0070] 5b…Auxiliary sensing magnet group

[0071] 5c…Auxiliary drive coil assembly

[0072] 5d…Auxiliary Hall sensor element group

[0073] 6, 7…Electronic devices

[0074] 61, 71…Flash module

[0075] 62…Focus assist module

[0076] 63…Image signal processor

[0077] 64…Display module

[0078] AS…accommodation space

[0079] OA…Optical Axis

[0080] IOP…Incoming light path

[0081] S…Magnetic pole

[0082] N…magnetic pole

[0083] H…High potential

[0084] L…Low potential

[0085] IS…electronic photosensitive element

[0086] Dp…The shortest distance between two poles of the same polarity in the sensing magnet in the direction parallel to the optical axis

[0087] Dm…The longest distance between the two poles of the sensing magnet in the direction parallel to the optical axis

[0088] Dh…The shortest distance between Hall sensing elements in the direction parallel to the optical axis DETAILED DESCRIPTION

[0089] The following detailed description of the features and advantages of the present invention 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 relevant objects and advantages of the present invention. The following examples further illustrate the concepts of the present invention in detail but are not intended to limit the scope of the present invention in any way.

[0090] The present invention provides an imaging lens module, which may include a base, a frame element, multiple rolling supports, at least one imaging lens, a light deflection element, a sensing magnet group, an elastic printed circuit board, a driving coil group and a Hall sensing element group.

[0091] The frame element can be coupled to the base to form a receiving space therebetween.

[0092] The at least one imaging lens is movably positioned within the accommodating space. Specifically, the at least one imaging lens comprises at least one plastic lens barrel and at least one plastic lens assembly, and has an optical axis. The at least one plastic lens barrel is movably supported on a base. The at least one plastic lens assembly is housed within the at least one plastic lens barrel. The optical axis passes through the at least one plastic lens assembly. The base may have a guide groove extending parallel to the optical axis and facing the at least one imaging lens to guide movement of the at least one imaging lens, thereby ensuring stability of the at least one imaging lens during movement. The at least one imaging lens may also be movably supported on the base via multiple rolling supports. Alternatively, the multiple rolling supports may be positioned within the accommodating space and disposed between the at least one imaging lens and the base, thereby reducing sliding frictional resistance of the at least one imaging lens during movement. The rolling supports may be disposed within the guide groove, thereby maintaining a high degree of driving alignment for the at least one imaging lens.

[0093] A light deflecting element may be located within the accommodation space and disposed on the object side of the at least one imaging lens. The light deflecting element may be a reflector or a prism, configured to deflect an incident light path into the at least one imaging lens and align it with the optical axis. This facilitates miniaturization of the imaging lens module.

[0094] The sensing magnet group can be located in the accommodating space. Specifically, the sensing magnet group includes at least two sensing magnets. The at least two sensing magnets are sequentially arranged on the at least one plastic lens barrel in a direction parallel to the optical axis.

[0095] The at least two sensing magnets are located on the same side relative to a reference plane, wherein the reference plane passes through the optical axis and the normal direction of the reference plane is perpendicular to the optical axis. When the at least two sensing magnets are observed in a direction parallel to the optical axis, the images of the at least two sensing magnets at least partially overlap. In this way, the magnetic flux density (Flux Density) in the direction parallel to the optical axis will not have excessive fluctuations. The sensing magnet group may also include more than three sensing magnets. Please refer to Figure 7 , a graph showing the magnetic flux density corresponding to the sensing magnet group is drawn.

[0096] The two adjacent magnetic poles between the at least two sensing magnets are of the same polarity, and a repulsive force exists between the adjacent magnetic poles of the same polarity. The adjacent magnetic poles of the same polarity can be arranged at a specific distance to ensure continuity of the magnetic flux density. This prevents excessively low magnetic flux density between the adjacent magnetic poles of the same polarity. Furthermore, this further ensures that the release point will not be triggered within the hysteresis range of the Hall effect sensor group.

[0097] The flexible printed circuit board can be supported by the frame element. The flexible printed circuit board is flexible, thereby helping to further miniaturize the imaging lens module.

[0098] The drive coil assembly can be disposed on a flexible printed circuit board in a direction parallel to the optical axis. The drive coil assembly can be positioned opposite the sensing magnet assembly, generating a Lorentz force through electromagnetic interaction. This Lorentz force can serve as a driving magnetic force to drive the at least one plastic lens barrel to move in a direction parallel to the optical axis. Appropriate spatial arrangement can optimize the driving efficiency of the drive coil assembly.

[0099] The Hall sensing element group may include at least two Hall sensing elements. The at least two Hall sensing elements may be sequentially soldered on the flexible printed circuit board in a direction parallel to the optical axis. The Hall sensing element group may also include three or more Hall sensing elements. The Hall sensing element group may be arranged opposite to the sensing magnet group to detect the displacement of the at least one plastic lens barrel in a direction parallel to the optical axis. Specifically, one of the at least two sensing magnets may be arranged corresponding to one of the at least two Hall sensing elements. When the sensing magnet moves away from the corresponding Hall sensing element due to the displacement of the plastic lens barrel, another Hall sensing element may take over the corresponding relationship with the sensing magnet to detect the location of the sensing magnet and thereby determine the location of the plastic lens barrel where the sensing magnet is arranged. The sensing efficiency of the Hall sensing element group may be optimized through appropriate spatial configuration.

[0100] The imaging lens module disclosed in the present invention may also include at least one fixed imaging lens. The at least one fixed imaging lens includes at least one fixed plastic lens barrel and at least one fixed plastic lens group, and the at least one fixed plastic lens group is accommodated in the at least one fixed plastic lens barrel. Compared with the aforementioned at least one imaging lens that is movable relative to the base, the at least one fixed imaging lens is fixed relative to the base. In this way, the optical design requirements of group drive can be responded to, and the purpose of zooming can be achieved by only changing the relative positions of some lenses, so as to increase the design margin of the optical design and correspond to higher-specification optical requirements. Please refer to Figure 3 、 Figure 17 and Figure 23 , respectively depicting fixed imaging lenses 14 , 34 , and 44 according to the first, third, and fourth embodiments of the present invention.

[0101] The imaging lens module disclosed in the present invention may also include an optical image stabilization device. The optical image stabilization device is used to be disposed on an electronic photosensitive element to stabilize the image signal converted from the light passing through the at least one imaging lens on the electronic photosensitive element. This can provide a more stable method for capturing optical image signals to improve imaging quality. Please refer to Figure 28 and Figure 29 , which shows an optical image stabilization device 5a according to a fifth embodiment of the present invention.

[0102] The imaging lens module disclosed in the present invention may also include an auxiliary sensing magnet group, an auxiliary driving coil group, and an auxiliary Hall sensing element group. The auxiliary sensing magnet group, the auxiliary driving coil group, and the auxiliary Hall sensing element group are all disposed on the optical image stabilization device. In this way, the auxiliary sensing magnet group, the auxiliary driving coil group, and the auxiliary Hall sensing element group can be matched with each other to enable the electronic photosensitive element to be in a drivable state to achieve the effect of optical image stabilization. Please refer to Figure 28 and Figure 29 , depicts an auxiliary sensing magnet set 5b, an auxiliary driving coil set 5c, and an auxiliary Hall sensing element set 5d according to a fifth embodiment of the present invention.

[0103] The shortest distance between two like poles among the at least two sensing magnets in the direction parallel to the optical axis is Dp, the longest distance between the two poles of the at least two sensing magnets in the direction parallel to the optical axis is Dm, and the total number of the at least two sensing magnets is Nt, which satisfies the following condition: 0.1 < Nt×Dp / (Dm - (Nt - 1)×Dp) < 3.2; thereby, the continuity of the magnetic flux density between the sensing magnets can be ensured, which helps to accurately locate the position of the at least one plastic lens barrel. Among them, the following condition can also be satisfied: 0.15 < Nt×Dp / (Dm - (Nt - 1)×Dp) < 2; thereby, the accuracy of the signal judgment of the Hall sensing element group can be increased. Please refer to Figure 7 , which shows Dp and Dm according to the first embodiment of the present invention.

[0104] The shortest distance between two like poles among the at least two sensing magnets in the direction parallel to the optical axis is Dp, the longest distance between the two poles of the at least two sensing magnets in the direction parallel to the optical axis is Dm, and the following condition can be satisfied: 0 < Dp / Dm < 1. Thereby, the sensing efficiency of the Hall sensing element group can be ensured. Among them, the following condition can also be satisfied: 0.1 < Dp / Dm < 0.8.

[0105] The shortest distance between two like poles among the at least two sensing magnets in the direction parallel to the optical axis is Dp, the shortest distance between the at least two Hall sensing elements in the direction parallel to the optical axis is Dh, and the following condition can be satisfied: 0 < Dh / Dp < 3. Thereby, it can be ensured that the magnetic flux density of the sensing magnets can be accurately detected by the Hall sensing element group. Please refer to Figure 7 , which shows Dp and Dh according to the first embodiment of the present invention.

[0106] Each technical feature in the above imaging lens module of the present invention can be combined and configured to achieve the corresponding effects.

[0107] According to the above embodiments, specific embodiments are proposed below and will be described in detail with reference to the accompanying drawings.

[0108] <First Embodiment>

[0109] Please refer to Figures 1 to 7 , wherein Figure 1 is a three-dimensional schematic diagram of an imaging lens module shown according to the first embodiment of the present invention, <000{0291>is Figure 1 a partial exploded schematic diagram of the imaging lens module of Figure 3 is Figure 1 an exploded schematic diagram of the imaging lens module of Figure 4 is Figure 1 another exploded schematic diagram of the imaging lens module of Figure 5 is Figure 1 Schematic diagram of the front configuration relationship of the flexible printed circuit board, drive coil group, Hall sensing element group and sensing magnet group of the imaging lens module, Figure 6 for Figure 1 A schematic diagram of the lateral configuration relationship of the flexible printed circuit board, the drive coil group, the Hall sensing element group and the sensing magnet group of the imaging lens module is provided. Figure 7 The figure is a graph showing the magnetic flux density and the output voltage according to the configuration relationship among the driving coil group, the Hall sensing element group and the sensing magnet group.

[0110] In this embodiment, the imaging lens module 1 includes a base 10, a frame element 11, a plurality of rolling supports 12, a movable imaging lens 13, a fixed imaging lens 14, a light deflection element 15, a sensing magnet assembly 16, an elastic printed circuit board 17, a driving coil assembly 18, and a Hall sensor assembly 19.

[0111] The base 10 has a plurality of guide grooves 101. The guide grooves 101 extend in the same direction.

[0112] The frame element 11 is coupled to the base 10 to form an accommodating space AS therebetween.

[0113] The rolling support member 12 is located in the accommodating space AS and disposed in the guiding groove 101 .

[0114] The movable imaging lens 13 is movably positioned within the accommodating space AS. Specifically, the movable imaging lens 13 includes a movable plastic lens barrel 131 and a movable plastic lens assembly 132, and has an optical axis OA. The movable plastic lens barrel 131 has a plurality of guide grooves 1311. The guide grooves 1311 face and correspond to the guide grooves 101 of the base 10. The rolling support 12 is clamped by the guide grooves 101 and 1311 and can roll in the extending direction of the guide grooves 101 and 1311, so that the movable plastic lens barrel 131 is movably supported on the base 10. The movable plastic lens assembly 132 is accommodated in the movable plastic lens barrel 131 and can be driven by the movable plastic lens barrel 131 to move relative to the base 10. The optical axis OA passes through the movable plastic lens assembly 132 , and the direction of the optical axis OA is parallel to the extending direction of the guiding grooves 101 and 1311 .

[0115] The fixed imaging lens 14 is fixedly positioned within the accommodation space AS and is disposed on the object side of the movable imaging lens 13. The fixed imaging lens 14 comprises a fixed plastic lens barrel 141 and a fixed plastic lens assembly 142, with the fixed plastic lens assembly 142 housed within the fixed plastic lens barrel 141. It is worth noting that the movable plastic lens assembly 132 and the fixed plastic lens assembly 142 can each comprise one or more lenses, and the present invention is not limited thereto.

[0116] The light deflecting element 15 is located within the accommodation space AS and is disposed on the object side of the fixed imaging lens 14. The light deflecting element 15 is, for example, a reflector or a prism, and deflects an incident light path IOP from the outside world so that the light enters the fixed imaging lens 14 and the movable imaging lens 13 and coincides with the optical axis OA.

[0117] The sensing magnet group 16 is located within the accommodating space AS. Specifically, the sensing magnet group 16 includes a first sensing magnet 161 and a second sensing magnet 162. The first sensing magnet 161 and the second sensing magnet 162 are sequentially arranged on the movable plastic lens barrel 131 in a direction parallel to the optical axis OA. The first sensing magnet 161 and the second sensing magnet 162 are located on the same side relative to a reference plane (not shown); the reference plane passes through the optical axis OA, and the normal direction of the reference plane is perpendicular to the optical axis OA; in other words, the optical axis OA is located on the reference plane. When observing the first sensing magnet 161 and the second sensing magnet 162 in a direction parallel to the optical axis OA, the images of the first sensing magnet 161 and the second sensing magnet 162 at least partially overlap. The two adjacent magnetic poles between the first sensing magnet 161 and the second sensing magnet 162 are both S poles, and a repulsive force exists between the two S poles.

[0118] The flexible printed circuit board 17 is supported by the frame element 11 and is flexible.

[0119] The drive coil assembly 18 is disposed on the flexible printed circuit board 17 in a direction parallel to the optical axis OA. The drive coil assembly 18 includes six drive coils 181, 182, 183, 184, 185, and 186, and is positioned relative to the first sensing magnet 161 and the second sensing magnet 162 of the sensing magnet assembly 16. The drive coil assembly 18 and the sensing magnet assembly 16 generate a Lorentz force through electromagnetic interaction, which acts as the driving magnetic force that drives the movable plastic lens barrel 131 in a direction parallel to the optical axis OA. It is worth noting that when the movable plastic barrel 131 has not yet been driven, the first sensing magnet 161 corresponds to three of the driving coils 181, 182, and 183, and the second sensing magnet 162 corresponds to the other three driving coils 184, 185, and 186. This ensures that after the movable plastic barrel 131 is moved, the first sensing magnet 161 and the second sensing magnet 162 can still at least partially correspond to the driving coils 181, 182, 183, 184, 185, and 186, thereby ensuring that sufficient driving magnetic force can still be generated.

[0120] The Hall effect sensor assembly 19 includes six Hall effect sensors 191, 192, 193, 194, 195, and 196. Hall effect sensors 191, 192, 193, 194, 195, and 196 are soldered sequentially to the flexible printed circuit board 17 in a direction parallel to the optical axis OA and are, for example, located at the center of the driving coils 181, 182, 183, 184, 185, and 186, respectively. When the movable plastic barrel 131 is not yet driven, the first sensing magnet 161 corresponds to three of the Hall effect sensors 191, 192, and 193, and the second sensing magnet 162 corresponds to the other three Hall effect sensors 194, 195, and 196. This ensures that after the movable plastic barrel 131 is moved, the first sensing magnet 161 and the second sensing magnet 162 are still at least partially relative to the Hall effect sensors 191, 192, 193, 194, 195, and 196. This ensures that the positions of the first sensing magnet 161 and the second sensing magnet 162 can still be accurately detected, thereby determining the position of the movable plastic barrel 131 and calculating the displacement of the movable plastic barrel 131.

[0121] Specifically, through appropriate spatial configuration, the magnetic flux density generated by the sensing magnet group 16 in the direction parallel to the optical axis OA can be referred to Figure 7 . Figure 7 In the graph, the magnetic flux density in a direction parallel to the optical axis OA fluctuates with the positions of the magnetic poles of the first sensing magnet 161 and the second sensing magnet 162. Furthermore, the change in magnetic flux density from the release point to the operating point generates an output voltage for the Hall effect sensor assembly 19. The Hall effect sensor assembly 19 uses the high and low potentials H and L of the output voltage to determine the current positions of the magnetic poles of the sensing magnet assembly 16 and indirectly infer the current position of the movable plastic lens barrel 131. Appropriate spatial configuration can be achieved by setting the following parameters.

[0122] The shortest distance between the two S magnetic poles of the same pole in the first sensing magnet 161 and the second sensing magnet 162 in the direction parallel to the optical axis OA is Dp, the longest distance between the two magnetic poles of the first sensing magnet 161 and the second sensing magnet 162 in the direction parallel to the optical axis OA is Dm, and the total number of sensing magnets in the sensing magnet group 16 is Nt, which satisfies the following conditions: Dp = 2.62 [mm]; Dm = 9.62 [mm]; Nt = 2; and Nt×Dp / (Dm-(Nt-1)×Dp) = 0.75.

[0123] The shortest distance between the two S poles of the same pole in the first sensing magnet 161 and the second sensing magnet 162 in the direction parallel to the optical axis OA is Dp, and the longest distance between the two magnetic poles of the first sensing magnet 161 and the second sensing magnet 162 in the direction parallel to the optical axis OA is Dm, which satisfies the following condition: Dp / Dm=0.27.

[0124] The shortest distance between the two S magnetic poles of the same pole in the first sensing magnet 161 and the second sensing magnet 162 in the direction parallel to the optical axis OA is Dp, and the shortest distance between the Hall sensing elements 191, 192, 193, 194, 195, and 196 in the direction parallel to the optical axis OA is Dh, which satisfies the following conditions: Dh = 1.40 [mm]; and Dh / Dp = 0.53.

[0125] <Second embodiment>

[0126] Please refer to Figures 8 to 14 ,in Figure 8 is a perspective schematic diagram of an imaging lens module according to a second embodiment of the present invention. Figure 9 for Figure 8 A partially exploded diagram of the imaging lens module. Figure 10 for Figure 8 Schematic diagram of the imaging lens module. Figure 11 for Figure 8 Another exploded schematic diagram of the imaging lens module, Figure 12 for Figure 8 Schematic diagram of the front configuration relationship of the flexible printed circuit board, drive coil group, Hall sensing element group and sensing magnet group of the imaging lens module, Figure 13 for Figure 8 A schematic diagram of the lateral configuration relationship of the flexible printed circuit board, the drive coil group, the Hall sensing element group and the sensing magnet group of the imaging lens module is provided. Figure 14 The figure is a graph showing the magnetic flux density and the output voltage according to the configuration relationship among the driving coil group, the Hall sensing element group and the sensing magnet group.

[0127] In this embodiment, the imaging lens module 2 includes a base 20, a frame element 21, a plurality of rolling supports 22, two movable imaging lenses 23, a light deflection element 25, two sensing magnet groups 26, an elastic printed circuit board 27, two driving coil groups 28, and two Hall sensing element groups 29.

[0128] The base 20 has a plurality of guide grooves 201. The guide grooves 201 extend in the same direction.

[0129] The frame element 21 is coupled to the base 20 to form an accommodating space AS therebetween.

[0130] The rolling support member 22 is located in the accommodating space AS and disposed in the guiding groove 201 .

[0131] The movable imaging lens 23 is movably positioned within the accommodation space AS. Specifically, each movable imaging lens 23 includes a movable plastic lens barrel 231 and a movable plastic lens assembly 232, and has an optical axis OA. Each movable plastic lens barrel 231 has a plurality of guide grooves 2311. The guide grooves 2311 face and correspond to the guide grooves 201 of the base 20. The rolling support 22 is clamped by the guide grooves 201 and 2311 and can roll in the direction in which the guide grooves 201 and 2311 extend, so that each movable plastic lens barrel 231 is movably supported on the base 20. The movable plastic lens assembly 232 is respectively accommodated in the movable plastic lens barrel 231 and can be driven by the movable plastic lens barrel 231 to move relative to the base 20. The optical axis OA passes through the movable plastic lens assembly 232, and the direction of the optical axis OA is parallel to the extension direction of the guide grooves 201 and 2311. It is worth noting that the movable plastic lens assembly 232 can have one or more lenses, and the present invention is not limited thereto.

[0132] The light deflecting element 25 is located in the accommodation space AS and is disposed on the object side of the movable imaging lens 23. The light deflecting element 25 is, for example, a reflector or a prism, which deflects an incident light path IOP from the outside world so that the light enters the movable imaging lens 23 and coincides with the optical axis OA.

[0133] The sensing magnet groups 26 are located within the accommodating space AS. Specifically, each sensing magnet group 26 includes a first sensing magnet 261 and a second sensing magnet 262. The first sensing magnet 261 and the second sensing magnet 262 are sequentially arranged on the movable plastic lens barrel 231 in a direction parallel to the optical axis OA. The two sensing magnet groups 26 are located on opposite sides of the optical axis OA, and the first sensing magnet 261 and the second sensing magnet 262 of each sensing magnet group 26 are located on the same side relative to a reference plane (not shown). The reference plane passes through the optical axis OA, and the normal direction of the reference plane is perpendicular to the optical axis OA. Alternatively, the optical axis OA is located on the reference plane. When observing the first sensing magnet 261 and the second sensing magnet 262 of each sensing magnet group 26 in a direction parallel to the optical axis OA, the images of the first sensing magnet 261 and the second sensing magnet 262 at least partially overlap. In each sensing magnet set 26 , the two adjacent magnetic poles between the first sensing magnet 261 and the second sensing magnet 262 are both S poles, and a repulsive force exists between the two S poles.

[0134] The flexible printed circuit board 27 is supported by the frame element 21 and is flexible.

[0135] The drive coil assemblies 28 are disposed on opposite sides of the flexible printed circuit board 27 in a direction parallel to the optical axis OA. Each drive coil assembly 28 includes three drive coils 281, 282, and 283, and is positioned relative to the first sensing magnet 261 and the second sensing magnet 262 of the sensing magnet assembly 26. The drive coil assemblies 28 and the sensing magnet assembly 26 generate a Lorentz force through electromagnetic interaction, which serves as the driving magnetic force that drives the movable plastic lens barrel 231 in a direction parallel to the optical axis OA. It is worth noting that when the movable plastic lens barrel 231 is not yet driven, the first sensing magnet 261 corresponds to one of the drive coils 281, and the second sensing magnet 262 corresponds to the other two drive coils 282 and 283. This ensures that the first sensing magnet 261 and the second sensing magnet 262 remain at least partially relative to the drive coils 281, 282, and 283 after the movable plastic lens barrel 231 is moved, thereby ensuring that sufficient driving magnetic force is still generated.

[0136] Each Hall sensor assembly 29 includes three Hall sensor elements 291, 292, and 293. The Hall sensor elements 291, 292, and 293 of each Hall sensor assembly 29 are soldered sequentially to the flexible printed circuit board 27 in a direction parallel to the optical axis OA and are, for example, located at the center of one of the drive coils 281, 282, and 283. When the movable plastic lens barrel 231 is not yet driven, the first sensing magnet 261 corresponds to one of the Hall effect sensors 291, and the second sensing magnet 262 corresponds to the other two Hall effect sensors 292 and 293. This ensures that after the movable plastic lens barrel 231 is moved, the first sensing magnet 261 and the second sensing magnet 262 are still at least partially relative to the Hall effect sensors 291, 292, and 293. This ensures that the positions of the first sensing magnet 261 and the second sensing magnet 262 can still be accurately detected, thereby determining the position of the movable plastic lens barrel 231 and calculating the displacement of the movable plastic lens barrel 231.

[0137] Specifically, through appropriate spatial configuration, the magnetic flux density generated by the sensing magnet group 26 in the direction parallel to the optical axis OA can be referred to Figure 14 . Figure 14 In the graph, the magnetic flux density in a direction parallel to the optical axis OA fluctuates with the positions of the magnetic poles of the first sensing magnet 261 and the second sensing magnet 262. Furthermore, an output voltage is generated for the Hall effect sensor assembly 29 from the release point to the operating point of the magnetic flux density. The Hall effect sensor assembly 29 uses the high and low potentials H and L of the output voltage to determine the current positions of the magnetic poles of the sensing magnet assembly 26 and indirectly infer the current position of the movable plastic lens barrel 231. Appropriate spatial configuration can be achieved by setting the following parameters.

[0138] The shortest distance between the two S magnetic poles of the same pole in the first sensing magnet 261 and the second sensing magnet 262 in the direction parallel to the optical axis OA is Dp, and the longest distance between the two magnetic poles of the first sensing magnet 261 and the second sensing magnet 262 in the direction parallel to the optical axis OA is Dm. The total number of sensing magnets in each sensing magnet group 26 is Nt, which satisfies the following conditions: Dp = 1.53 [mm]; Dm = 5.03 [mm]; Nt = 2; and Nt×Dp / (Dm-(Nt-1)×Dp) = 0.87.

[0139] The shortest distance between the two S poles of the same pole in the first sensing magnet 261 and the second sensing magnet 262 in the direction parallel to the optical axis OA is Dp, and the longest distance between the two magnetic poles of the first sensing magnet 261 and the second sensing magnet 262 in the direction parallel to the optical axis OA is Dm, which satisfies the following condition: Dp / Dm=0.30.

[0140] The shortest distance between the two S magnetic poles of the same pole in the first sensing magnet 261 and the second sensing magnet 262 in the direction parallel to the optical axis OA is Dp, and the shortest distance between the Hall sensing elements 291, 292, and 293 in the direction parallel to the optical axis OA is Dh, which satisfies the following conditions: Dh = 1.40 [mm]; and Dh / Dp = 0.92.

[0141] <Third embodiment>

[0142] Please refer to Figures 15 to 21 ,in Figure 15 is a perspective schematic diagram of an imaging lens module according to a third embodiment of the present invention. Figure 16 for Figure 15 A partially exploded diagram of the imaging lens module. Figure 17 for Figure 15 Schematic diagram of the imaging lens module. Figure 18 for Figure 15 Another exploded schematic diagram of the imaging lens module, Figure 19 for Figure 15 Schematic diagram of the front configuration relationship of the flexible printed circuit board, drive coil group, Hall sensing element group and sensing magnet group of the imaging lens module, Figure 20 for Figure 15 A schematic diagram of the lateral configuration relationship of the flexible printed circuit board, the drive coil group, the Hall sensing element group and the sensing magnet group of the imaging lens module is provided. Figure 21 The figure is a graph showing the magnetic flux density and the output voltage according to the configuration relationship among the driving coil group, the Hall sensing element group and the sensing magnet group.

[0143] In this embodiment, the imaging lens module 3 includes a base 30, a frame element 31, multiple rolling supports 32, a movable imaging lens 33, two fixed imaging lenses 34, a light deflection element 35, a sensing magnet group 36, an elastic printed circuit board 37, a driving coil group 38 and a Hall sensor element group 39.

[0144] The base 30 has a plurality of guide grooves 301. The guide grooves 301 extend in the same direction.

[0145] The frame element 31 is coupled to the base 30 to form an accommodating space AS therebetween.

[0146] The rolling support member 32 is located in the accommodating space AS and disposed in the guiding groove 301 .

[0147] The movable imaging lens 33 is movably positioned within the accommodating space AS. Specifically, the movable imaging lens 33 includes a movable plastic lens barrel 331 and a movable plastic lens assembly 332, and has an optical axis OA. The movable plastic lens barrel 331 has a plurality of guide grooves 3311. The guide grooves 3311 face and correspond to the guide grooves 301 of the base 30. The rolling support 32 is clamped by the guide grooves 301 and 3311 and can roll in the direction in which the guide grooves 301 and 3311 extend, so that the movable plastic lens barrel 331 is movably supported on the base 30. The movable plastic lens assembly 332 is accommodated within the movable plastic lens barrel 331 and can be driven by the movable plastic lens barrel 331 to move relative to the base 30. The optical axis OA passes through the movable plastic lens assembly 332 , and the direction of the optical axis OA is parallel to the extending direction of the guiding grooves 301 and 3311 .

[0148] The fixed imaging lenses 34 are fixedly positioned within the accommodation space AS and are disposed on the object and image sides of the movable imaging lens 33. Each fixed imaging lens 34 comprises a fixed plastic lens barrel 341 and a fixed plastic lens assembly 342, with the fixed plastic lens assembly 342 housed within the fixed plastic lens barrel 341. It is worth noting that the movable plastic lens assembly 332 and the fixed plastic lens assembly 342 can each comprise one or more lenses, and the present invention is not limited thereto.

[0149] The light deflecting element 35 is located within the accommodation space AS and is disposed on the object side of the movable imaging lens 33 and the fixed imaging lens 34. The light deflecting element 35 is, for example, a reflector or a prism, and deflects an incident light path IOP from the outside world so that it enters the fixed imaging lens 34 and the movable imaging lens 33 and coincides with the optical axis OA.

[0150] The sensing magnet assembly 36 is located within the accommodating space AS. Specifically, the sensing magnet assembly 36 includes a first sensing magnet 361 and a second sensing magnet 362. The first sensing magnet 361 and the second sensing magnet 362 are sequentially arranged on the movable plastic lens barrel 331 in a direction parallel to the optical axis OA. The first sensing magnet 361 and the second sensing magnet 362 are located on the same side relative to a reference plane (not shown); the reference plane passes through the optical axis OA, and the normal direction of the reference plane is perpendicular to the optical axis OA; in other words, the optical axis OA is located on the reference plane. When observing the first sensing magnet 361 and the second sensing magnet 362 in a direction parallel to the optical axis OA, the images of the first sensing magnet 361 and the second sensing magnet 362 at least partially overlap. The two adjacent magnetic poles of the first sensing magnet 361 and the second sensing magnet 362 are both S poles, and a repulsive force exists between the two S poles.

[0151] The flexible printed circuit board 37 is supported by the frame element 31 and is flexible.

[0152] The drive coil assembly 38 is disposed on the flexible printed circuit board 37 in a direction parallel to the optical axis OA. The drive coil assembly 38 includes six drive coils 381, 382, ​​383, 384, 385, and 386, and is positioned relative to the first sensing magnet 361 and the second sensing magnet 362 of the sensing magnet assembly 36. The drive coil assembly 38 and the sensing magnet assembly 36 generate a Lorentz force through electromagnetic interaction, which acts as the driving magnetic force that drives the movable plastic lens barrel 331 in a direction parallel to the optical axis OA. It is worth noting that when the movable plastic lens barrel 331 has not yet been driven, the first sensing magnet 361 corresponds to three of the driving coils 381, 382, ​​and 383, and the second sensing magnet 362 corresponds to the other three driving coils 384, 385, and 386. This ensures that after the movable plastic lens barrel 331 is moved, the first sensing magnet 361 and the second sensing magnet 362 can still be at least partially relative to the driving coils 381, 382, ​​383, 384, 385, and 386, thereby ensuring that sufficient driving magnetic force can still be generated.

[0153] The Hall effect sensor assembly 39 includes six Hall effect sensors 391, 392, 393, 394, 395, and 396. These sensors are soldered sequentially to the flexible printed circuit board 37 in a direction parallel to the optical axis OA and are located, for example, at the center of the drive coils 381, 382, ​​383, 384, 385, and 386, respectively. When the movable plastic barrel 331 is not yet driven, the first sensing magnet 361 corresponds to three of the Hall effect sensors 391, 392, and 393, and the second sensing magnet 362 corresponds to the other three Hall effect sensors 394, 395, and 396. This ensures that after the movable plastic barrel 331 is moved, the first sensing magnet 361 and the second sensing magnet 362 remain at least partially relative to the Hall effect sensors 391, 392, 393, 394, 395, and 396. This ensures that the positions of the first sensing magnet 361 and the second sensing magnet 362 can still be accurately detected, thereby determining the position of the movable plastic barrel 331 and calculating the displacement of the movable plastic barrel 331.

[0154] Specifically, through appropriate spatial configuration, the magnetic flux density generated by the sensing magnet group 36 in the direction parallel to the optical axis OA can be referred to Figure 21 . Figure 21 In the graph, the magnetic flux density in a direction parallel to the optical axis OA fluctuates with the positions of the magnetic poles of the first sensing magnet 361 and the second sensing magnet 362. Furthermore, an output voltage is generated for the Hall effect sensor assembly 39 from the release point to the operating point of the magnetic flux density. The Hall effect sensor assembly 39 uses the high and low potentials H and L of the output voltage to determine the current positions of the magnetic poles of the sensing magnet assembly 36 and indirectly infer the current position of the movable plastic lens barrel 331. Appropriate spatial configuration can be achieved by setting the following parameters.

[0155] The shortest distance between the two S magnetic poles of the same pole in the first sensing magnet 361 and the second sensing magnet 362 in the direction parallel to the optical axis OA is Dp, and the longest distance between the two magnetic poles in the first sensing magnet 361 and the second sensing magnet 362 in the direction parallel to the optical axis OA is Dm. The total number of sensing magnets in the sensing magnet group 36 is Nt, which satisfies the following conditions: Dp = 0.82 [mm]; Dm = 7.82 [mm]; Nt = 2; and Nt×Dp / (Dm-(Nt-1)×Dp) = 0.23.

[0156] The shortest distance between the two S poles of the same pole in the first sensing magnet 361 and the second sensing magnet 362 in the direction parallel to the optical axis OA is Dp, and the longest distance between the two magnetic poles in the direction parallel to the optical axis OA is Dm, which satisfies the following condition: Dp / Dm=0.10.

[0157] The shortest distance between the two S magnetic poles of the same pole in the first sensing magnet 361 and the second sensing magnet 362 in the direction parallel to the optical axis OA is Dp, and the shortest distance between the Hall sensing elements 391, 392, 393, 394, 395, and 396 in the direction parallel to the optical axis OA is Dh, which satisfies the following conditions: Dh = 1.40 [mm]; and Dh / Dp = 1.71.

[0158] <Fourth embodiment>

[0159] Please refer to Figures 22 to 27 ,in Figure 22 is a perspective schematic diagram of an imaging lens module according to a fourth embodiment of the present invention. Figure 23 for Figure 22 Schematic diagram of the imaging lens module. Figure 24 for Figure 22 Another exploded schematic diagram of the imaging lens module, Figure 25 for Figure 22 Schematic diagram of the front configuration relationship of the flexible printed circuit board, drive coil group, Hall sensing element group and sensing magnet group of the imaging lens module, Figure 26 for Figure 22 A schematic diagram of the lateral configuration relationship of the flexible printed circuit board, the drive coil group, the Hall sensing element group and the sensing magnet group of the imaging lens module is provided. Figure 27 The figure is a graph showing the magnetic flux density and the output voltage according to the configuration relationship among the driving coil group, the Hall sensing element group and the sensing magnet group.

[0160] In this embodiment, the imaging lens module 4 includes a base 40, a frame element 41, a plurality of rolling supports 42, a movable imaging lens 43, a fixed imaging lens 44, a light deflection element 45, a sensing magnet assembly 46, an elastic printed circuit board 47, a driving coil assembly 48, and a Hall sensor element assembly 49.

[0161] The base 40 has a plurality of guide grooves 401. The guide grooves 401 extend in the same direction.

[0162] The frame element 41 is coupled to the base 40 to form an accommodating space AS therebetween.

[0163] The rolling support member 42 is located in the accommodating space AS and disposed in the guiding groove 401 .

[0164] The movable imaging lens 43 is movably positioned within the accommodating space AS. Specifically, the movable imaging lens 43 includes a movable plastic lens barrel 431 and a movable plastic lens assembly 432, and has an optical axis OA. The movable plastic lens barrel 431 has a plurality of guide grooves 4311. The guide grooves 4311 face and correspond to the guide grooves 401 of the base 40. The rolling support member 42 is clamped by the guide grooves 401 and 4311 and can roll in the direction in which the guide grooves 401 and 4311 extend, so that the movable plastic lens barrel 431 is movably supported on the base 40. The movable plastic lens assembly 432 is accommodated in the movable plastic lens barrel 431 and can be driven by the movable plastic lens barrel 431 to move relative to the base 40. The optical axis OA passes through the movable plastic lens assembly 432 , and the direction of the optical axis OA is parallel to the extending direction of the guiding grooves 401 and 4311 .

[0165] The fixed imaging lens 44 is fixedly positioned within the accommodation space AS and is disposed on the object side of the movable imaging lens 43. The fixed imaging lens 44 comprises a fixed plastic lens barrel 441 and a fixed plastic lens assembly 442, with the fixed plastic lens assembly 442 housed within the fixed plastic lens barrel 441. It is worth noting that the movable plastic lens assembly 432 and the fixed plastic lens assembly 442 can each have one or more lenses, and the present invention is not limited thereto.

[0166] The light deflecting element 45 is located in the accommodation space AS and is disposed on the object side of the fixed imaging lens 44. The light deflecting element 45 is, for example, a reflector or a prism, which deflects an incident light path IOP from the outside world so that the light enters the fixed imaging lens 44 and the movable imaging lens 43 and coincides with the optical axis OA.

[0167] The sensing magnet assembly 46 is located within the accommodating space AS. Specifically, the sensing magnet assembly 46 includes a first sensing magnet 461, a second sensing magnet 462, and a third sensing magnet 463. The first sensing magnet 461, the second sensing magnet 462, and the third sensing magnet 463 are sequentially arranged on the movable plastic lens barrel 431 in a direction parallel to the optical axis OA. The first sensing magnet 461, the second sensing magnet 462, and the third sensing magnet 463 are located on the same side relative to a reference plane (not shown). The reference plane passes through the optical axis OA, and the normal direction of the reference plane is perpendicular to the optical axis OA. Alternatively, the optical axis OA lies on the reference plane. When observing the first sensing magnet 461, the second sensing magnet 462, and the third sensing magnet 463 in a direction parallel to the optical axis OA, the images of the first sensing magnet 461, the second sensing magnet 462, and the third sensing magnet 463 at least partially overlap. The two adjacent poles between the first sensing magnet 461 and the second sensing magnet 462 are both S poles, and there is a repulsive force between the two S poles. The two adjacent poles between the second sensing magnet 462 and the third sensing magnet 463 are both N poles, and there is a repulsive force between the two N poles.

[0168] The flexible printed circuit board 47 is supported by the frame element 41 and is flexible.

[0169] The drive coil assembly 48 is disposed on the flexible printed circuit board 47 in a direction parallel to the optical axis OA. The drive coil assembly 48 includes six drive coils 481, 482, 483, 484, 485, and 486, and is positioned relative to the first sensing magnet 461, the second sensing magnet 462, and the third sensing magnet 463 of the sensing magnet assembly 46. The drive coil assembly 48 and the sensing magnet assembly 46 generate a Lorentz force through electromagnetic interaction, which serves as the driving magnetic force that drives the movable plastic lens barrel 431 in a direction parallel to the optical axis OA. It is worth noting that when the movable plastic lens barrel 431 has not yet been driven, the first sensing magnet 461 corresponds to the three driving coils 481, 482, and 483, the second sensing magnet 462 corresponds to the three driving coils 483, 484, and 485, and the third sensing magnet 463 corresponds to the two driving coils 485 and 486. This ensures that after the movable plastic lens barrel 431 is moved, the first sensing magnet 461, the second sensing magnet 462, and the third sensing magnet 463 can still be at least partially relative to the driving coils 481, 482, 483, 484, 485, and 486, thereby ensuring that sufficient driving magnetic force can still be generated subsequently.

[0170] The Hall effect sensor assembly 49 includes six Hall effect sensors 491, 492, 493, 494, 495, and 496. Hall effect sensors 491, 492, 493, 494, 495, and 496 are soldered sequentially to the flexible printed circuit board 47 in a direction parallel to the optical axis OA and are, for example, located at the center of the drive coils 481, 482, 483, 484, 485, and 486, respectively. When the movable plastic barrel 431 is not driven, the first sensing magnet 461 corresponds to two of the Hall effect sensors 491 and 492, the second sensing magnet 462 corresponds to three of the Hall effect sensors 493, 494, and 495, and the third sensing magnet 463 corresponds to the remaining Hall effect sensor 496. This ensures that after the movable plastic barrel 431 is moved, the first sensing magnet 461, the second sensing magnet 462, and the third sensing magnet 463 are still at least partially relative to the Hall effect sensors 491, 492, 493, 494, 495, and 496. This ensures that the positions of the first sensing magnet 461, the second sensing magnet 462, and the third sensing magnet 463 can still be accurately detected, thereby determining the position of the movable plastic barrel 431 and calculating the displacement of the movable plastic barrel 431.

[0171] Specifically, through appropriate spatial configuration, the magnetic flux density generated by the sensing magnet group 46 in the direction parallel to the optical axis OA can be referred to Figure 27 . Figure 27 In the graph, the magnetic flux density in a direction parallel to the optical axis OA fluctuates with the positions of the magnetic poles of the first sensing magnet 461, the second sensing magnet 462, and the third sensing magnet 463. Furthermore, an output voltage is generated for the Hall effect sensor assembly 49 from the release point to the operating point of the magnetic flux density. The Hall effect sensor assembly 49 uses the high and low potentials H and L of the output voltage to determine the current positions of the magnetic poles of the sensing magnet assembly 46 and indirectly infer the current position of the movable plastic lens barrel 431. Appropriate spatial configuration can be achieved by setting the following parameters.

[0172] The shortest distance between two S poles or two N poles of the same pole among the first sensing magnet 461, the second sensing magnet 462 and the third sensing magnet 463 in the direction parallel to the optical axis OA is Dp, and the longest distance between two magnetic poles of the first sensing magnet 461, the second sensing magnet 462 and the third sensing magnet 463 in the direction parallel to the optical axis OA is Dm. The total number of sensing magnets in the sensing magnet group 46 is Nt, which satisfies the following conditions: Dp = 0.82 [mm]; Dm = 12.13 [mm]; Nt = 2; and Nt×Dp / (Dm-(Nt-1)×Dp) = 0.23.

[0173] The shortest distance between two S poles or two N poles of the same pole among the first sensing magnet 461, the second sensing magnet 462 and the third sensing magnet 463 in the direction parallel to the optical axis OA is Dp, and the longest distance between the two magnetic poles of the first sensing magnet 461, the second sensing magnet 462 and the third sensing magnet 463 in the direction parallel to the optical axis OA is Dm, which satisfies the following condition: Dp / Dm=0.07.

[0174] The shortest distance between two S poles or two N poles of the same pole in the direction parallel to the optical axis OA among the first sensing magnet 461, the second sensing magnet 462 and the third sensing magnet 463 is Dp, and the shortest distance between the Hall sensing elements 491, 492, 493, 494, 495, and 496 in the direction parallel to the optical axis OA is Dh, which satisfies the following conditions: Dh = 1.40 [mm]; and Dh / Dp = 1.71.

[0175] <Fifth embodiment>

[0176] Please refer to Figures 28 to 29 ,in Figure 28 is an exploded schematic diagram of a camera module according to a fifth embodiment of the present invention, and Figure 29 for Figure 28 Another exploded diagram of the camera module.

[0177] In this embodiment, camera module C5 includes an imaging lens module 5 and an electronic photosensitive element IS. Imaging lens module 5 is, for example, similar to imaging lens module 3 described in the third embodiment, with only the differences described in this embodiment. Furthermore, camera module C5 may also include the imaging lens modules of the other embodiments described above, and the present invention is not limited thereto.

[0178] The imaging lens module 5 has an imaging surface (not shown), and the electronic photosensitive element IS is disposed on the imaging surface of the imaging lens module 5 to convert light passing through the imaging lens module 5 into an image signal.

[0179] The imaging lens module 5 also includes an optical image stabilization device 5a, an auxiliary sensing magnet assembly 5b, an auxiliary drive coil assembly 5c, and an auxiliary Hall effect sensor assembly 5d. The optical image stabilization device 5a is mounted on the electronic image sensor IS and can drive the electronic image sensor IS to stabilize the converted image signal from the electronic image sensor IS. The auxiliary sensing magnet assembly 5b, an auxiliary drive coil assembly 5c, and the auxiliary Hall effect sensor assembly 5d are all mounted on the optical image stabilization device 5a and work together to drive the optical image stabilization device 5a, keeping the electronic image sensor IS in a drivable state, thereby achieving optical image stabilization.

[0180] <Sixth embodiment>

[0181] Please refer to Figure 30 and Figure 31 ,in Figure 30 A schematic perspective view of one side of an electronic device according to a sixth embodiment of the present invention is shown, and Figure 31 Draw Figure 30 A three-dimensional schematic diagram of the other side of the electronic device.

[0182] In this embodiment, the electronic device 6 is a smart phone and includes a plurality of camera modules, a flash module 61 , a focus assist module 62 , an image signal processor 63 , a display module (user interface) 64 , and an image software processor (not shown).

[0183] These camera modules include an ultra-wide-angle camera module 60a, a high-pixel camera module 60b, and a telephoto camera module 60c. The telephoto camera module 60c is the camera module C5 of the fifth embodiment, but the present invention is not limited thereto.

[0184] The ultra-wide-angle camera module 60a has a function of accommodating multiple views. Figure 32 FIG. 4 is a schematic diagram illustrating an image captured by the ultra-wide-angle camera module 60 a .

[0185] The high-pixel camera module 60b has high resolution and low distortion functions. The high-pixel camera module 60b can further capture Figure 32 Part of the image. Figure 33 FIG. 4 is a schematic diagram showing an image captured by a high-pixel camera module 60 b .

[0186] The telephoto camera module 60c has a high magnification function. The telephoto camera module 60c can further capture Figure 33 Part of the image. Figure 34 A schematic diagram of capturing an image with the telephoto camera module 60c is shown. The maximum field of view (FOV) of the telephoto camera module 60c corresponds to Figure 34 perspective.

[0187] When a user photographs a subject, electronic device 6 utilizes ultra-wide-angle camera module 60a, high-pixel camera module 60b, or telephoto camera module 60c to focus and capture the image. Flash module 61 is activated for fill light, and the subject's distance information provided by focus assist module 62 is used for rapid focusing. Image signal processor 63 then performs image optimization processing to further enhance the image quality produced by the camera modules while also providing a zoom function. Focus assist module 62 may utilize an infrared or laser focus assist system to achieve rapid focusing. Display module 64 may utilize a touch screen, coupled with the diverse functions of an image software processor, for image capture and processing (or a physical capture button may be used). Images processed by the image software processor are displayed on display module 64.

[0188] <Seventh embodiment>

[0189] Please refer to Figure 35 , which is a three-dimensional schematic diagram of one side of an electronic device according to a seventh embodiment of the present invention.

[0190] In this embodiment, electronic device 7 is a smartphone. Electronic device 7 includes the camera module C5, camera module 70a, camera module 70b, camera module 70c, camera module 70d, camera module 70e, camera module 70f, camera module 70g, camera module 70h, flash module 71, an image signal processor, a display device, and an image software processor (not shown). Camera module C5, camera module 70a, camera module 70b, camera module 70c, camera module 70d, camera module 70e, camera module 70f, camera module 70g, and camera module 70h are all located on the same side of electronic device 7, while the display device is located on the other side of electronic device 7.

[0191] Camera module C5 is a telephoto camera module, camera module 70a is a telephoto camera module, camera module 70b is a telephoto camera module, camera module 70c is a telephoto camera module, camera module 70d is a wide-angle camera module, camera module 70e is a wide-angle camera module, camera module 70f is an ultra-wide-angle camera module, camera module 70g is an ultra-wide-angle camera module, and camera module 70h is a time-of-flight (ToF) camera module. In this embodiment, camera modules C5, 70a, 70b, 70c, 70d, 70e, 70f, and 70g have different viewing angles, allowing electronic device 7 to provide different magnifications, achieving an optical zoom effect. Furthermore, camera module C5 and camera module 70a are telephoto camera modules equipped with light deflection elements. Furthermore, camera module 70h can acquire depth information from an image. The electronic device 7 described above includes a plurality of camera modules C5, 70a, 70b, 70c, 70d, 70e, 70f, 70g, and 70h, but the number and configuration of the camera modules are not intended to limit the present invention. When a user photographs a subject, the electronic device 7 utilizes camera module C5, camera module 70a, camera module 70b, camera module 70c, camera module 70d, camera module 70e, camera module 70f, camera module 70g, or camera module 70h to focus light and capture an image. The flash module 71 is activated for fill light, and subsequent processing is performed in a manner similar to the aforementioned embodiments, which will not be further described here.

[0192] The camera module of the present invention is not limited to smartphones. It can also be used in mobile focus systems, depending on the needs, and features both excellent aberration correction and high-quality imaging. For example, the camera module can be used in a variety of electronic devices, including three-dimensional (3D) image capture, digital cameras, mobile devices, tablet computers, smart TVs, network monitoring equipment, dashcams, backup cameras, multi-lens devices, recognition systems, motion-sensing game consoles, and wearable devices. The aforementioned electronic devices are merely illustrative examples of practical applications of the present invention and are not intended to limit the scope of application of the camera module of the present invention.

[0193] Although the present invention is disclosed above with reference to the aforementioned embodiments, they are not intended to limit the present invention. Any person skilled in the art may make slight changes and modifications 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 scope of protection of the claims attached to this specification.

Claims

1. An imaging lens module, characterized in that: Include: At least one imaging lens comprises at least one plastic lens barrel and at least one plastic lens group, and has an optical axis, wherein the at least one plastic lens group is accommodated in the at least one plastic lens barrel, and the optical axis passes through the at least one plastic lens group; a light deflecting element for deflecting an incident light path into the at least one imaging lens and aligning the light path with the optical axis; as well as a sensing magnet set comprising at least two sensing magnets, wherein the at least two sensing magnets are sequentially disposed on the at least one plastic lens barrel in a direction parallel to the optical axis; The at least two sensing magnets are located on the same side relative to a reference plane, the reference plane passes through the optical axis, and a normal direction of the reference plane is perpendicular to the optical axis; wherein, when observing the at least two sensing magnets in a direction parallel to the optical axis, the images of the at least two sensing magnets at least partially overlap; Wherein, the two adjacent magnetic poles between the at least two sensing magnets are of the same polarity, and there is a repulsive force between the two magnetic poles; The shortest distance between two magnetic poles of the same polarity among the at least two sensing magnets in a direction parallel to the optical axis is Dp, the longest distance between two magnetic poles of the at least two sensing magnets in a direction parallel to the optical axis is Dm, and the total number of the at least two sensing magnets is Nt, which satisfies the following conditions: 0.1 <Nt×Dp / (Dm-(Nt-1)×Dp)≤0.87。 2. The imaging lens module according to claim 1, wherein: The shortest distance between two magnetic poles of the same polarity among the at least two sensing magnets in a direction parallel to the optical axis is Dp, the longest distance between two magnetic poles of the at least two sensing magnets in a direction parallel to the optical axis is Dm, and the total number of the at least two sensing magnets is Nt, which satisfies the following conditions: 0.15 <Nt×Dp / (Dm-(Nt-1)×Dp)≤0.87。 3. The imaging lens module according to claim 1, wherein: The shortest distance between two magnetic poles of the same polarity among the at least two sensing magnets in a direction parallel to the optical axis is Dp, and the longest distance between two magnetic poles of the at least two sensing magnets in a direction parallel to the optical axis is Dm, which satisfies the following conditions: 0 <Dp / Dm<1。 4. The imaging lens module according to claim 3, wherein: The shortest distance between two magnetic poles of the same polarity among the at least two sensing magnets in a direction parallel to the optical axis is Dp, and the longest distance between two magnetic poles of the at least two sensing magnets in a direction parallel to the optical axis is Dm, which satisfies the following conditions: 0.1 <Dp / Dm<0.8。 5. The imaging lens module according to claim 1, wherein: Also includes: a base, carrying the at least one imaging lens; A plurality of rolling support members are disposed between the at least one imaging lens and the base; a frame member coupled to the base; a flexible printed circuit board carried by the frame member; a driving coil assembly, disposed on the flexible printed circuit board in a direction parallel to the optical axis; as well as A Hall sensing element group includes at least two Hall sensing elements, wherein the at least two Hall sensing elements are sequentially soldered on the flexible printed circuit board in a direction parallel to the optical axis.

6. The imaging lens module according to claim 5, wherein: The shortest distance between two magnetic poles of the same polarity among the at least two sensing magnets in a direction parallel to the optical axis is Dp, and the shortest distance between the at least two Hall sensing elements in a direction parallel to the optical axis is Dh, which satisfies the following conditions: 0 <Dh / Dp<3。 7. The imaging lens module according to claim 5, wherein: The driving coil group and the sensing magnet group are arranged opposite to each other and generate a driving magnetic force therebetween, and the driving magnetic force drives the at least one plastic lens barrel to move in a direction parallel to the optical axis.

8. The imaging lens module according to claim 7, wherein: The Hall sensing element group and the sensing magnet group are arranged opposite to each other to detect the displacement of the at least one plastic lens barrel in a direction parallel to the optical axis.

9. The imaging lens module according to claim 5, wherein: The device further comprises at least one fixed imaging lens, wherein the at least one fixed imaging lens comprises at least one fixed plastic lens barrel and at least one fixed plastic lens group, the at least one fixed plastic lens group being accommodated in the at least one fixed plastic lens barrel, the at least one fixed imaging lens being fixed relative to the base, and the at least one imaging lens being movable relative to the base.

10. The imaging lens module according to claim 5, wherein: The invention further comprises an optical image stabilizing device, wherein the optical image stabilizing device is used to be disposed on an electronic photosensitive element to stabilize the optical image signal on the electronic photosensitive element.

11. The imaging lens module according to claim 10, wherein: The optical image stabilization device further comprises an auxiliary sensing magnet group, an auxiliary driving coil group and an auxiliary Hall sensing element group, wherein the auxiliary sensing magnet group, the auxiliary driving coil group and the auxiliary Hall sensing element group are all disposed on the optical image stabilization device.

12. The imaging lens module according to claim 5, wherein: The base has a guiding groove, wherein the guiding groove extends in a direction parallel to the optical axis and faces the at least one imaging lens.

13. The imaging lens module according to claim 12, wherein: The rolling support member is disposed in the guiding groove.

14. An electronic device, characterized in that: Include: The imaging lens module according to claim 1; and An electronic photosensitive element is disposed on an imaging surface of the imaging lens module, wherein the electronic photosensitive element is used to convert light passing through the at least one imaging lens into an image signal.

Images