TW201940954A - Multi-lens camera module - Google Patents

Abstract

A multi-lens camera module comprises at least two lens modules located side-by-side. Each lens module can be a voice coil motor (VCM) lens module furnished with an auto-focusing (AF) or/and an optical image stabilizer (OIS) functions. The surface where two neighbouring lens modules are adjacent with is called as the neighbouring surface. Each lens module comprises a plurality of driving magnets and is defined with an X axis, a Y axis and a Z axis which are perpendicular to each other; wherein, an optical axis is parallel to the Z axis. The neighbouring surface is parallel with a surface defined by the X and Y axises. A projection view on the neighbouring surface of a plurality of secondary driving magnets located at two sides of the neighbouring surface includes at least one secondary driving magnet which has unequal lengths of two opposite sides along either the Y axis or the Z axis, in addition, shapes of the two opposite sides include at least one of the following: slope, arc and straight line. Each of the secondary driving magnets has a central axis parallel to the optical axis. When viewing along the X axis, a distance W is defined between two neighbouring secondary driving magnets, in addition, these secondary driving magnets are arranged across the neighbouring surface along the Y axis in a staggered manner.

Description

Multi-lens camera module

The present invention relates to a multi-lens camera module, in particular to a voice coil motor (VCM) with auto focus (AF) or an optical image stabilization system (OIS) VCM can also be used in multi-lens camera modules of electronic devices.

In the thin and light design of the smart phone, its internal central processing unit (CPU), memory, and battery modules have taken up most of the space, thus limiting the size of the camera module. Various brand manufacturers are racing to launch smart phones with multi-camera lens modules, and especially equipped with OIS camera modules have become standard equipment in flagship smartphones.

OIS (Optical Image Stabilizer) is an abbreviation for Optical Image Stabilization System. It uses a gyroscope that can sense the shaking direction to measure the shaking data, and the system predicts the image offset based on the value. Then, the system controls the lens to make a corresponding axial displacement relative to the image sensor, thereby offsetting the offset, and ensuring that the camera can still maintain stable imaging in a hand-shake environment.

Based on the development of multi-camera lens modules and the limitation of mobile phone space, two adjacent lens modules need to solve the problem of magnetic interference at the same time. The OIS lens module architecture shares the driving magnet on the basis of the traditional VCM AF. In addition to acting with the driving coil to drive the lens to move in the Z-axis direction, it also produces translational X and Y thrusts with the translation coil. In order to reduce magnetic interference, due to space constraints, the size of adjacent side drive magnets is often intuitively reduced. Although the magnetic field interference is reduced, the thrust (driving force), especially the translational thrust, is also reduced. Decreasing thrust is equivalent to reducing performance and increasing power consumption. The demand for sufficient miniaturized OIS lens modules with sufficient driving force is constant, so how to implement a multi-lens camera module with low magnetic interference in the most limited space is the goal of various manufacturers.

The present invention mainly provides a miniaturized multi-lens camera module capable of reducing magnetic interference easily without requiring complicated structure design. Regardless of the traditional VCM AF or the lens module with OIS, the characteristic configuration of the magnetic field of the lens driving device is used to reduce the mutual interference between the magnetic fields, and to reduce the unstable offset extended by the magnetic interference between adjacent lenses. The lens module adjusts the stability, and closes the distance between adjacent lens modules to ensure the effective configuration of the internal space of the mobile phone and obtain better magnetic interference performance at the same power consumption.

To achieve the above object, the present invention provides a multi-lens camera module, which includes at least a first lens module and a second lens module disposed adjacently, and the first lens module and the second lens module There is a gap between them, and the distance center of this gap is called an adjacent face. The two sides of the adjacent surface are the first lens module and the second lens module, respectively; the first lens module and the second lens module respectively define an X axis, a Y axis, and A Z-axis direction; each of the first lens module and the second lens module has a camera optical axis parallel to the Z axis; wherein the first lens module and the second lens module each include There are: an upper cover including a perforation; a frame body located in the upper cover and forming an accommodation space therein; a lens disposed in the accommodation space inside the frame body; at least one elastic element, Combined with the frame, the at least one elastic element can be used to limit the displacement of the lens along the direction of the optical axis of the camera in the accommodating space; a first driving system includes a driving coil and a plurality of driving magnets; The driving coil is coupled to the periphery of the lens and corresponds to the plurality of driving magnets incorporated in the frame to provide the thrust in the Z-axis direction. Among them, the plurality of driving magnets include two main drives corresponding to each other. Magnet and at least one assistant Magnets; and, the first module and the second lens in the lens module is disposed adjacent to the secondary face of the driving magnet.

In an embodiment: the first lens module and the second lens module are respectively provided with at least one auxiliary driving magnet at the adjacent surface; each of the auxiliary driving magnets has a parallel to the camera optical axis A central axis, and each central axis is spaced a distance apart; The auxiliary driving magnets at the adjacent surface are staggered with each other along the adjacent surface and across the adjacent surface; the projection of the auxiliary driving magnets at the adjacent surface onto the adjacent surface The projection of at least one pair of driving magnets on the adjacent surface has a configuration in which the lengths of the opposite sides are different.

In one embodiment, at least one of the first lens module and the second lens module further includes a second driving system. The second driving system includes a circuit board, and at least two translation coils are disposed on the circuit board. The circuit board corresponds to the plurality of driving magnets and provides translational axial thrust; the plurality of suspension wires have the characteristics of elastic suspension and conductivity, and the suspension wires are respectively the frame and the lens. The elastic element is elastically suspended directly above the circuit board; and an external circuit is coupled below the frame and electrically connected to the circuit board, and the external circuit further includes an image sensor An element; wherein the lens further includes: a lens group and a lens bearing seat; wherein the lens group is disposed at the center of the lens bearing seat and is synchronously displaced with the lens bearing seat.

In an embodiment, the external circuit further includes at least one sensor; and at least one of the first lens module and the second lens module further includes at least one sensing magnet, which is disposed at Out of the lens, and aimed at one of the sensors on the external circuit.

In one embodiment, the volume of the secondary driving magnet located at the adjacent surface is at least smaller than the volume of another secondary driving magnet belonging to the same lens module and located farther from the adjacent surface and corresponding to the secondary driving magnet. , And the volume of the other auxiliary driving magnet located farther from the adjacent surface and corresponding to the auxiliary driving magnet may be smaller than, equal to, or larger than the volume of the main driving magnet.

In an embodiment, the opposite driving magnets located at the adjacent faces and having different opposite sides have different lengths. The opposite ends of the line segment are extended by at least one oblique line segment, arc line segment, or right angle line segment. connection.

In one embodiment, the difference between the lengths of the opposite driving line segments of the auxiliary driving magnets located at the adjacent faces and having different opposite sides and sides is greater than 20%.

In one embodiment, the plurality of the auxiliary driving magnets are partially overlapped with each other along the adjacent surface and alternately arranged through the adjacent surface.

In an embodiment, the magnetization directions of the plurality of auxiliary driving magnets located on both sides of the adjacent surface are not parallel to each other.

In one embodiment, the plurality of driving magnets further includes at least one auxiliary magnet disposed in the frame; the auxiliary magnet is disposed between the auxiliary driving magnet and the main driving magnet at the adjacent surface, and the distance is The main drive magnet is at a predetermined width.

In an embodiment, the auxiliary magnet is disposed beyond the inner side of the auxiliary driving magnet at the adjacent surface, and the auxiliary magnet and the main driving magnet are oriented toward the lens side with the same polarity.

In one embodiment, the auxiliary magnet is a multi-pole magnet.

In one embodiment, the auxiliary magnet has a gap, and its magnetization direction is the same as that of the main driving magnet.

In an embodiment, the distance between the first lens module and the second lens module located on both sides of the adjacent surface and between the main driving magnet and the adjacent surface are different.

In one embodiment, the projections of the sub-driving magnets and the main driving magnets located on the adjacent surface are partially overlapped with each other.

In one embodiment, the projection of the auxiliary driving magnet (or auxiliary magnet) and the projection of the main driving magnet on the X-Z plane partially overlaps.

In one embodiment, the main driving magnet included in one of the first lens module and the second lens module, and the end adjacent to the adjacent surface is one of the following: Shape, height, or thickness gradient configuration.

In an embodiment, the projection of the main driving magnet included in one of the first lens module and the second lens module onto the XZ plane includes a line segment of unequal length on opposite sides, according to The optical axis is divided into two, and the difference in the lengths of the line segments of the opposite sides of the main driving magnet which are unequal is greater than 10%.

In an embodiment, the plurality of driving magnets further include at least one auxiliary magnet disposed in the frame; the auxiliary magnet is disposed on an adjacent surface side of the main driving magnet symmetry center line.

In an embodiment, the central axis parallel to the imaging optical axis of the auxiliary magnet and the auxiliary driving magnet on both sides of the adjacent surface may be projected on the adjacent surface to overlap.

In an embodiment, the same lens belongs to a lens and is located farther away from the adjacent surface and the position corresponding to the auxiliary magnet of the adjacent surface. The auxiliary magnet may be disposed on the frame, or the auxiliary magnet may be disposed on the lens and the sensor. Corresponding or a gap is not provided with auxiliary magnets.

10, 10a, 20, 50, 60, 91, 92, 93, 94, 95, 96, 97‧‧‧ lens modules

100‧‧‧ Adjacent faces

12‧‧‧Corner Drive Magnet

11,121,122,21,22,653,912,913,922,923,924

13, 23, 552, 652, 911, 921, 931‧‧‧ main drive magnet

231‧‧‧ extension

2201, 1213, 1223, 1213a‧‧‧

2202, 1214, 1224, 1214 a‧‧‧

2203, 2204, 1212, 1222‧‧‧ slashes

1211, 1221, 2200‧‧‧ central axis

1215, 1225, 2205, 2206‧‧‧‧arc segments

1216, 1226, 2207, 2208‧‧‧ right-angle segments

24, 553, 932‧‧‧ auxiliary magnets

12191, 12192, 12291, 12292, 2291, 2292‧‧‧ small magnets

31,41,51,61‧‧‧Top cover

311,411‧‧‧Perforated

32,42,52,62‧‧‧Frame

321,421,521,621‧‧‧ Positioning film

33,43,53,63‧‧‧lens

331,431,531,631 ‧‧‧ lens mount

34,44,341,441,54,541,64,641‧‧‧‧Elastic element

35,45,55,65‧‧‧‧first drive system

351,451,551,651‧‧‧Drive coil

36,46,66‧‧‧Second Drive System

361,461,661‧‧‧Circuit Board

362,363,364,365,462,463,464,465,662,663,664,665

37,47,67

38,48,68‧‧‧Connecting plate

39‧‧‧ Sensor Magnet

301,401‧‧‧External Circuit

302,402‧‧‧Image sensor

303,304,305,403,404‧‧‧ sensors

300,400,611‧‧‧floor

425‧‧‧ gap

426‧‧‧ shock-absorbing medium

80‧‧‧ shock-absorbing medium coating equipment

81‧‧‧ Probe

FIG. 1 is an example of a multi-lens camera module developed by the applicant of the present application, which discloses the basic structure of an OIS driving device adjacent to a multi-lens camera module.

FIG. 2 is a schematic diagram of driving magnets and magnetic fields of the multi-lens camera module developed by the applicant of the present invention as shown in FIG. 1. FIG.

Figures 3A, 3B, and 3C are three-dimensional exploded views, combined top views, and combinations of the first preferred embodiment (represented by the dual lens driving device) of the lens module of the multi-lens camera module of the invention Sectional view.

FIG. 3D and FIG. 3E are three-dimensional schematic diagrams of a driving magnet configuration example of two adjacent lens modules in the first preferred embodiment of the multi-lens camera module of the present invention shown in FIG. 3A. Schematic diagram of the projection of the driving magnet on the adjacent surface.

FIG. 4A is a schematic diagram of a driving magnet configuration of a second preferred embodiment of the multi-lens driving module of the present invention.

FIG. 4B is the second preferred embodiment of the multi-lens driving module of the present invention shown in FIG. 4A and the embodiment shown in FIG. 1, both of which are obtained by testing the optical axis shift caused by magnetic interference. Schematic illustration of the curve.

FIG. 5 is a second preferred embodiment of the multi-lens driving module of the present invention as shown in FIG. 4A and a first preferred embodiment as shown in FIG. 3E, both of which perform optical axis shift due to magnetic interference Schematic diagram of the test results.

FIG. 6 is a perspective view of a third preferred embodiment of the multi-lens camera module according to the present invention, and a driving magnet configuration example of two adjacent lens modules.

FIG. 7 is a perspective view of the second preferred embodiment of the multi-lens camera module of the present invention shown in FIG.

FIG. 8A to FIG. 8F are respectively several different embodiments of the multi-lens camera module of the present invention, in which two adjacent lens modules on the side of the adjacent surface are projected on the adjacent surface. of schematic diagram.

FIG. 9A is a schematic top view of a fourth preferred embodiment of a multi-lens camera module according to the present invention. The first lens module is a lens module with a corner magnet.

FIG. 9B is a fourth preferred embodiment of the multi-lens camera module shown in FIG. 9A. A-A perspective view of the projection of the plurality of auxiliary driving magnets located on the adjacent surface onto the adjacent surface.

FIGS. 9C to 9G are the multi-lens camera modules of the present invention. The first lens module is a lens module with a corner magnet, and the two adjacent lens modules are located on the side of the adjacent surface. Schematic diagrams of several different embodiments of magnets projected on the adjacent surface.

FIG. 10A is a schematic top view of a fifth preferred embodiment of the multi-lens camera module of the present invention.

FIG. 10B is a fifth preferred embodiment of the multi-lens driving module of the present invention as shown in FIG. 10A. The second lens module is provided with an auxiliary magnet and no auxiliary magnet. Both of them perform optical axes caused by magnetic interference. Schematic diagram of the curve obtained from the offset test.

FIG. 11 is a perspective view of a sixth preferred embodiment of the multi-lens camera module according to the present invention, and a driving magnet configuration example of two adjacent lens modules.

FIG. 12 is a schematic top view of a seventh preferred embodiment of a multi-lens camera module according to the present invention.

FIGS. 13A to 13D are perspective views of the eighth to eleventh preferred embodiments of the multi-lens camera module of the present invention, and the driving magnet configuration examples of two adjacent lens modules.

FIG. 14 is a twelfth preferred embodiment of the multi-lens camera module according to the present invention. An example of an embodiment in which the auxiliary driving magnets of two adjacent lens modules on the adjacent surface side are projected on the adjacent surface schematic diagram.

FIGS. 15A to 15C are schematic top views of several embodiments of the multi-lens camera module of the present invention. The number of lens modules may be greater than two and configured in different ways.

FIG. 16A and FIG. 16B are respectively a thirteenth preferred embodiment of the multi-lens camera module of the present invention, a three-dimensional exploded view of two adjacent lens modules, and a schematic top view of a driving magnet configuration.

Figures 17A, 17B, and 17C are the fourteenth, fifteenth, and sixteenth preferred embodiments of the multi-lens camera module of the present invention, respectively, which have the driving of three adjacent lens modules Schematic top view of a magnet configuration example.

18A, 18B, and 18C are a three-dimensional exploded view, a side view of some components, and an E-E sectional view of a seventeenth preferred embodiment of the multi-lens camera module of the present invention, respectively.

FIG. 19A and FIG. 19B are respectively a seventeenth preferred implementation of the multi-lens camera module of the present invention In the example, a side view and a three-dimensional view of a second lens module performing a dispensing process.

In order to more clearly describe the specific structure, operation mode and effect of the multi-lens camera module provided by the present invention, it will be described in detail below with reference to the drawings.

The lens module structure with the OIS optical image stabilization system is nothing more than a four-corner driving magnet or a four-sided driving magnet set in a fixed frame and suspended on a base by a suspension wire. For a multi-lens camera module, two adjacent lens modules are often close to each other, and the driving magnets in the two lens modules generate magnetic field interference with each other, causing problems such as optical axis misalignment and optical axis tilt.

Figure 1 is an example of a multi-lens camera module developed by the applicant of the present application, which reveals the basic structure of an OIS driving device adjacent to a multi-lens camera module. There is one between the two adjacent lens modules 10 and 20. The interval, the distance center of this interval is called adjacent surface 100. Using the space of the adjacent surface 100 of two adjacent lens modules 10 and 20, the second and third auxiliary driving magnets 121, 122, and 22 with smaller volume are provided through the total magnetic field configuration to provide X and Y axis magnetic field feedback and The thrust in the direction of the optical axis (that is, the direction of the Z axis) and the translational thrust and improve magnetic field interference. Two adjacent lens modules 10 and 20 are provided on one side of the adjacent surface 100 with two smaller driving magnets (second and third driving magnets 121 and 122) belonging to the first lens module 10; The other side of the surface 100 is at least one auxiliary driving magnet 22 with a small volume belonging to the second lens module 20. The second and third auxiliary driving magnets 121, 122, and 22 on both sides of the adjacent surface 100 are staggered; that is, a plurality of auxiliary driving magnets on both sides of the adjacent surface 100 and belonging to the two lens modules 10 and 20, respectively The projections of 121, 122, 22 on this adjacent surface 100 do not completely overlap or even completely overlap.

Please refer to FIG. 2, which is a schematic diagram of a driving magnet of a multi-lens driving device developed by the applicant of this case as shown in FIG. 1. Referring to FIG. 1 and FIG. 2 at the same time, due to the closer the distance between the magnets, the greater the interaction force, the secondary driving magnets 121, 122, and 22 on both sides of the adjacent surface 100 have a force; the main driving magnets 13, 23, and the phase The auxiliary driving magnets 121, 122, and 22 of the lens module on the other side of the adjacent surface 100 also have a force. Therefore, the closer the two adjacent lens modules 10 and 20 are, the larger the force generated between the driving magnets 13, 23, 121, 122, and 22 is.

The OIS lens driving device shares the driving magnet based on the traditional VCM AF. In addition to interacting with the Z-axis driving coil located on the lens to promote the lens to move in the Z-axis direction, it can also interact with the translation coil provided on the circuit board below. Translational thrust generated by the X and Y axes, Push the lens to produce a panning motion. The OIS lens driving device suspends the VCM AF through a plurality of suspension lines, that is, the frame, the elastic element, the plurality of driving magnets, and the lens are elastically suspended directly above the circuit board. Therefore, the closer the distance between two adjacent OIS lens modules, the greater the force generated between the driving magnets. The mutual influence of the driving magnet magnetic field in two adjacent OIS lens modules causes the VCM AF part in the lens module to move within the elastic range of the suspension line, which in turn affects the optical axis of the camera.

Regardless of the VCM AF or the complex relationship of the magnetic field shape of the OIS lens module, the total magnetic field is the sum of the characteristics of the driving magnets. In general, the characteristics of the driving magnets are related to the size, distance, position, magnetic pole and magnetic force of the driving magnets. And so on. On the one hand, it is desirable to increase the driving magnet to make it generate electromagnetic force with the coil as large as possible, and on the other hand, it is desirable to reduce the size of the driving magnet to make the magnetic field interference as small as possible. Without changing the original space planning of the lens module, according to the current limited internal space of mobile phones, the original configuration structure of the driving magnets in the lens module is difficult to break through the current magnetic interference and achieve a balanced design with small magnetic field interference and strong thrust.

In the multi-lens camera module of the present invention, under the optimal magnetic field balance planning, the magnetic field interference force balance method is used to reduce magnetic field interference. The total magnetic field of the drive unit of the AF or OIS multi-lens camera module can be balanced. The problems of reducing the mutual interference between magnetic fields between adjacent lens modules under the original design and planning mechanism spacing of the multi-lens camera module with OIS, and the problem of large variation in optical axis displacement due to the close distance of the stable driving magnet, have been further obtained. Better thrust to reduce power requirements.

In order to achieve the above object, the multi-lens camera module of the present invention is characterized in that it includes at least two lens modules disposed adjacently, and there is an interval between the two adjacent lens modules. The distance center of this interval is called Adjacent faces. Each lens module has a plurality of driving magnets, and defines X, Y, and Z directions perpendicular to each other. Among them, an imaging optical axis of the lens module is parallel to the Z axis, and the adjacent surface is connected with the Y is parallel to the plane defined by the Z axis. The projections of the plurality of auxiliary driving magnets located on both sides of the adjacent surface to the adjacent surface include at least one driving magnet whose opposite side lengths in the Y-axis or Z-axis directions are different, and the two opposite sides are at least A configuration consisting of a slash, arc, or straight line segment. Each of the plurality of auxiliary driving magnets has a central axis parallel to the imaging optical axis, and a distance W between the central axes is viewed from the X-axis direction. The plurality of auxiliary driving magnets are staggered along the Y-axis direction with adjacent surfaces across.

Referring to FIG. 3A, FIG. 3B and FIG. A three-dimensional exploded view, a combined top view, and a combined sectional view of the first preferred embodiment of the lens module of the group (represented by the dual lens driving device). The multi-lens camera module includes a first lens module 10 and a second lens module 20 having at least one adjacent surface 100. There is an interval between the adjacent first lens module 10 and the second lens module 20, and the distance center of this interval is called the adjacent surface 100. The first lens module 10 and the second lens module 20 each have a camera optical axis, and define an X axis, a Y axis, and a Z axis direction that are perpendicular to each other, wherein the Z axis and the camera optical axis The two adjacent surfaces 100 are parallel to a plane defined by the Y-axis and the Z-axis. In this embodiment, the first lens module 10 and the second lens module 20 each include at least a part of the following components: a cover 31, 41, a frame 32, 42, a The lenses 33, 43 are disposed on a lens bearing base 331, 431, at least one elastic element (including upper elastic elements 34, 44 and lower elastic elements 341, 441), a first driving system 35, 45, a second driving system 36, 46, A plurality of suspension wires 37, 47, a connecting plate 38, 48, and a sensor magnet 39.

The cover 31,41 includes a perforation 311,411. The frame bodies 32 and 42 are located in the upper covers 31 and 41 and form an accommodating space in the inside. The lenses 33, 43 and the lens mounts 331, 431 are disposed in the accommodating space inside the frame bodies 32, 42. The at least one elastic element (including the upper elastic element 34, 44 and the lower elastic element 341, 441) is coupled to the upper and lower end surfaces of the frame body 32, 42 and is matched with positioning pieces 321, 421 on the lower end surface of the frame body 32, 42. The lower elastic elements 341 and 441 are sandwiched and positioned on the frames 32 and 42 to limit the displacement of the lenses 33 and 43 (together with the lens holders 331 and 431) along the direction of the camera optical axis in the accommodation space.

The first driving system 35, 45 includes: at least one driving coil 351, 451, a pair of corresponding two main driving magnets 13, 23, and at least two auxiliary driving magnets 11, 121, 122, 21, 22. Among them, the driving coils 351, 451 are combined with the periphery of the lens mounts 331, 431 of the lens 33, 43 and with the plurality of driving magnets (including the main driving magnets 13, 23 and the auxiliary driving magnets) combined in the frame 32, 42 11,121,122,21,22), and provide driving force in the Z-axis direction as a driving device for AF.

The second driving system 36,46 includes at least: a circuit board 361,461, and at least two translation coils 362,363,364,365,462,463,464,465. The at least two translation coils 362, 363, 364, 365, 462, 463, 464, 465 are disposed on the circuit boards 361, 461 and correspond to the two main driving magnets 13, 23 and the at least two auxiliary driving magnets 11, 121, 122, 21, 22, respectively, and provide translational axes of the X-axis and Y-axis. Thrust to act as a drive for OIS.

The connection boards 38 and 48 are electrically connected to the circuit boards 361 and 461 and an external circuit 301 and 401, respectively. The external circuits 301 and 401 are located below the casings 32 and 42, and an image sensing element 302 and 402 are disposed on the external circuits. At least one sensor 303, 304, 305, 403, 404 is disposed on the connection board 38, 48 or the external circuit 301, 401. The plurality of suspension wires 37 and 47 have the characteristics of elastic suspension and conductivity respectively, and the suspension wires are respectively the frame body 32, 42, the lens mount 331, 431 (together with the lenses 33, 43), and the elastic element 34, 341. Together, 44,441 are elastically suspended directly above the circuit boards 361,461. The sensor magnet 39 is disposed on one side of the periphery of the lens 33 and is aligned with one of the sensors 304 on the external circuit 301.

In this embodiment, the at least two auxiliary driving magnets include the auxiliary driving magnets 11, 121, 122, 21, and 22. The first lens module 10 and the second lens module 20 are adjacent to each other and have the adjacent surface 100 between the two lens modules 10 and 20. The two pairs of driving magnets 121 and 122 of the first lens module 10 adjacent to the adjacent surface 100 and the pair of driving magnets 22 of the second lens module 20 adjacent to the adjacent surface 100 are three of the two lenses. The driving device is staggered in the Y-axis direction with the adjacent surface 100 interposed therebetween. That is, although the three auxiliary driving magnets 121, 122, and 22 are separately disposed on both sides of the adjacent surface 100, the projection of the three auxiliary driving magnets 121, 122, and 22 onto the adjacent surface 100, The three are arranged alternately in the order of the sub-driving magnet 121, the sub-driving magnet 22, and the sub-driving magnet 122 across the adjacent surface 100 along the Y-axis direction, so that the three sub-driving magnets 121, 122, and 22 are projected to The projections of adjacent faces 100 do not completely overlap. The driving coils 351 and 451 are one of a toroidal unipolar coil, a toroidal bipolar coil, a flat bipolar coil, or a printed circuit board (PCB) with a coil circuit.

Please refer to FIG. 3D and FIG. 3E, respectively, in the first preferred embodiment of the multi-lens camera module of the present invention shown in FIG. A three-dimensional schematic diagram and a schematic diagram of driving the projection of the magnet on the adjacent surface. As shown in FIG. 3E, the projection of the second lens module 20 on the adjacent surface 100 with at least one auxiliary driving magnet 22 includes at least one set of opposite edges (ie, the upper edge 2201). It does not have the same length as the side 2202) in the Y-axis direction. The configuration of the two sides of the auxiliary driving magnet 22 is formed by extending the line segment endpoints of the set of opposite sides (the upper side 2201 and the lower side 2202) in the Y-axis direction by using at least one diagonal line segment 2203, 2204 (hereinafter also referred to as a hypotenuse). Thereby, the auxiliary driving magnet 22 can be made into a trapezoid-like shape with a high middle portion and a short height at both ends in the Y-axis direction. In this embodiment, the length difference between the opposite sides (the upper side 2201 and the lower side 2202) is greater than 20%. That is, the length of the upper side 2201 is less than 80% of the length of the lower side 2202. The plurality of auxiliary driving magnets 121, 122, and 22 each have a central axis 1211, 1221, and 2200 parallel to the imaging optical axis (Z axis), and the projection on the adjacent surface 100 is viewed from the X direction, and the auxiliary driving magnets located in the middle There is a distance W between the central axis 2200 of 22 and the central axes 1211 and 1221 of the other two sets of driving magnets 121 and 122, respectively. The plurality of auxiliary driving magnets 121, 122, and 22 are staggered along the adjacent lens module in the Y-axis direction with an adjacent surface 100 interposed therebetween, and the plurality of sub driving magnets 121, 122, and 22 are staggered on the adjacent surface. The projections on 100 may be partially overlapping or non-overlapping with each other, but certainly not completely overlapping. The auxiliary driving magnet 22 is longer than the auxiliary driving magnets 121 and 122. In this embodiment, the side lengths of the upper and lower sides 2201 and 2202 of the auxiliary driving magnet 22 are different. The length of the upper side 2201 is shorter to reserve the area near the central axis 2200, so that the auxiliary driving magnet 22 and the driving coil 451 (see also FIG. Three A) The action keeps the thrust in the Z-axis direction. In addition, the oblique angle notch formed by the oblique sides (ie, the oblique line segments 2203 and 2204) is provided on the length space on both sides to reduce the magnetic field of the sub-driving magnet 22, thereby reducing the phase between the sub-driving magnet 22 and the first lens module 10. The force interference between the auxiliary driving magnets 121 and 122 on the adjacent 100 side is disturbed; the balance of the interaction force is achieved by adjusting the ratio of the side length difference of the opposite sides (the upper side 2201 and the lower side 2202). Once the magnetic interference is reduced, there will be more space planning to increase the translational driving force. The length of the magnet (that is, the length of the lower 2202) and the translational coil 462, which is the extension design auxiliary driving magnet 22 near the translation coil 462, is extended. The length of action between them, for example, but not limited to: approaching the configuration of a triangular body to obtain better translational driving force and lower power consumption performance.

Basically, a magnet in an external magnetic field will feel the torque applied by the external magnetic field, which will cause the magnetic moment of the magnet to be in the same direction as the external magnetic field. The magnetic fields between the opposite magnetic poles of the two magnets are in the same direction as the magnetic moments of the magnets, and their magnetic fields are stronger. The magnetic field between the driving magnets is complex, especially near the magnet's near field. In this case, the magnetic field energy is used to distribute the magnetic field energy to obtain a better balanced force to reduce the mutual interference between the magnetic fields.

Please refer to FIG. 4A, which is a schematic diagram of a driving magnet configuration of a second preferred embodiment of the multi-lens driving module of the present invention. Based on the above description, on the opposite sides of the two pairs of driving magnets 121 and 122 of the first lens module 10 adjacent to the adjacent surface 100, each of which has a diagonal line segment (also known as a hypotenuse) 1212, 1222. Adjacent second lens module 20 is adjacent to the opposite side (top 2201 and bottom 2202) of the auxiliary driving magnet 22 on the adjacent side 100. The line segments a and a1 are of equal length or unequal length. Learn about the opposite side of the auxiliary driving magnet 22 (upper side). 2201 and 2202 below) vary in length Long configuration, the influence of the total magnetic field force on the magnetic interference of the multi-lens camera module. In this embodiment, the length difference between the line segments a and a1 of the opposite sides of the unequal length (the upper side 2201 and the lower side 2202) is greater than 20% of the line segment a. The two ends of the line segment are extended and connected by oblique line segments 2203, 2204 to form a notch. Moreover, in this embodiment, the height of the left and right sides of the auxiliary driving magnet 22 is different from that of the auxiliary driving magnet 22 except that the length difference between the line segments a and a1 of the upper side 2201 and the lower side 2202 is greater than 20%. The height difference at the center of the auxiliary driving magnet 22 is also greater than 20% of the height of the sides.

Please refer to FIG. 4B, which is the second preferred embodiment of the multi-lens driving module of the present invention shown in FIG. 4A and the embodiment shown in FIG. 1. Both of them perform optical axis shift due to magnetic interference. Schematic diagram of the test results. It can be seen from the test curve diagram in FIG. 4B that the relationship between the displacement of the optical axis of the configuration of the auxiliary driving magnet 22 shown in FIG. 4A and the distance between the two lens modules 10 and 20 is shown. With the optical axis displacement of 0um as the state without any interference, it can be seen that the magnet configuration of curve E1 (the opposite sides of the auxiliary driving magnet 22 are as shown in Figure 4A as the upper and lower sides 2201 and 2202 are of unequal length) and the curve E2 (secondary The opposite sides of the driving magnet 22 have the configuration of the same length (upper and lower sides as shown in FIG. 1), and the degree of displacement of the optical axis is affected by magnetic field interference. The curve E1 (the opposite sides are unequal in length) is obviously smaller than the curve E2 (the opposite sides of the auxiliary drive magnet 22 have the same length), which means that the upper side 2201 of the auxiliary drive magnet 22 in the curve E1 (the opposite sides are unequal in length). The side length is reduced, and the volume near the central axis 2200 is retained to effectively reduce the magnetic field forces at both ends and the auxiliary driving magnets 121 and 122 of the adjacent first lens module 10, so that the forces generated at the overlapping ends of the projections on both sides can be reduced. With the diagonal lines 2203, 2204, the configuration gradually decreases. Looking at the 1.2mm distance between adjacent lens modules on Figure 4B, the configuration shown in Figure 4A shows that the displacement of the optical axis by magnetic field interference has decreased from 81 μm to 26 μm, and the reduction of the optical axis displacement by 55 μm indicates a 4-fold improvement. Therefore, the magnetic interference can be reduced if the plurality of auxiliary driving magnets at the adjacent surface ends of the driving devices of two adjacent lens modules include at least one auxiliary driving magnet with a notch; and the notch configuration The sensitivity of the distance adjustment between two adjacent lens modules is further reduced, and the configuration of the oblique angled section makes the height of the secondary driving magnet 22 near the central axis 2200 high, which can maintain sufficient energy to maintain the upward thrust; and the secondary driving The side length of the lower side 2202 of the magnet 22 is longer, and energy is maintained to maintain translational thrust.

Please refer to FIG. 5, which is a second preferred embodiment of the multi-lens driving module of the present invention as shown in FIG. 4A and a first preferred embodiment as shown in FIG. 3E. Schematic diagram of the curve obtained from the test of the axis offset. Can be understood from the graph in Figure 5, as shown in Figure 4A The configuration of the opposite driving magnets 121 and 122 shown on the opposite side, and the configuration of the opposite driving magnets 121 and 122 on the opposite side as shown in FIG. A graph of the distance between groups 10 and 20. In the curve D1 in FIG. 5, the magnetic field configuration of the test conditions is as shown in FIG. 4A. The two ends of the auxiliary driving magnet 22 of the second lens module 20 are configured with oblique edges (slanted line segments 2203 and 2204). Under the same conditions, by changing the opposite sides (upper and lower sides 1213, 1214, 1223, 1224) of the auxiliary driving magnets 121 and 122 of the first lens module 10, the line lengths b1 and b are the same length (as shown in Figure 3E). ) Or two configurations of unequal length (as shown in Figure 4A) to understand the opposite edges (upper and lower edges 1213, 1214, 1223, 1224) of the auxiliary driving magnets 121, 122, which are acting on the total term magnetic field. Effects of magnetic interference with multi-lens camera modules. The lengths of the unequal-length line segments b1 and b of the opposite sides (upper and lower sides 1213, 1214, 1223, 1224) of the auxiliary driving magnets 121 and 122 are greater than 20%, and the diagonal sides 1212 and 1222 are connected to form opposite corners. It can be seen from Fig. 5 that the configuration of the magnet of curve D1 (the opposite sides of the auxiliary driving magnets 121 and 122 shown in FIG. 4A are unequal length) and curve D2 (the opposite sides of the auxiliary driving magnets 121 and 122 shown in FIG. 3E) Equal length) The degree of displacement whose optical axis is affected by magnetic field interference. The curve D1 (the opposite sides of the auxiliary driving magnets 121 and 122 are unequal in length) is obviously smaller than the curve D2 (the opposite sides are of the same length). Observed from a distance of 1.2 μm, the displacement of the optical axis affected by the magnetic field from 44 μm to 26 μm has an improvement of 1.7 times, that is to say, as shown by curve D1, the auxiliary driving magnets 121 and 122 on the first lens module 10 top 1213 The reduction of the length of 1223 can reduce the effective area and effectively reduce the magnetic field interaction force between the two ends of the auxiliary driving magnet 22 of the second lens module 20 adjacent to it.

Please refer to FIG. 6, which is a perspective view of a third preferred embodiment of a multi-lens camera module according to the present invention, and a driving magnet configuration example of two adjacent lens modules. As shown in FIG. 6, the magnetic interference of the two adjacent lens modules 10 and 20 mainly comes from the auxiliary driving magnets 121, 122, and 22 on both sides of the adjacent surface 100. The plurality of auxiliary driving magnets 121, 122, and 22 are staggered along the Y-axis direction with the adjacent surface 100 therebetween, and the center axes thereof are separated by a distance W from the X-axis direction. This embodiment is different from the first preferred embodiment in that the auxiliary driving magnet 22 of the second lens module 20 has a long cylindrical configuration, and the auxiliary driving magnets 121 and 122 of the first lens module 10 include At least one notch configuration. The projection of each of the auxiliary driving magnets 121, 122 onto the adjacent surface 100 will have at least one opposite side (upper and lower sides 1213, 1214, 1223, 1224) of different side lengths; and each of the auxiliary driving magnets 121, 122, The beveled configuration of 122 is formed by connecting two ends of line segments of opposite sides (upper and lower sides 1213, 1214, 1223, 1224) with at least one inclined line segment 1212, 1222. 1213, 1214, 1223, 1224) The line length difference is greater than 20%. Using the configuration that the auxiliary driving magnets 121 and 122 on the 100 side of the adjacent surface of the first lens module 10 have different lengths above and below 1213, 1214, 1223, and 1224, and a configuration connected by an oblique line segment 1212 and 1222, Reduce magnetic energy and force between magnetic fields. The upper sides 1213 and 1223 of the auxiliary driving magnets 121 and 122 are relatively short in length. The area close to the direction of the auxiliary driving magnets 22 is opened and connected with a diagonal line segment 1212 and 1222 to form a notch. The area close to the auxiliary driving magnets 22 can be reduced. Reduce the magnetic interference between them; at the same time, the auxiliary drive magnets 121 and 122 and the outer area close to the main drive magnet 13 have a high height, so that they interact with the drive coil to maintain the thrust strength in the Z axis direction; in addition, the auxiliary drive magnet 121 The lower retention lengths of 12 and 1224 of 122 can increase the driving force for translation in the XY axis direction caused by the interaction with the translation coil.

Please refer to FIG. 7, which is a perspective view of a second preferred embodiment of the multi-lens camera module of the present invention shown in FIG. The second preferred embodiment shown in FIG. 7 differs from the first preferred embodiment in that the auxiliary driving magnets 121, 122, and 22 of the two lens modules 10, 20 respectively project onto the adjacent surface 100 respectively. Each has at least one opposite side (upper and lower sides 1213, 1214, 1223, 1224, 2201, 2202) with different side lengths, and the oblique configuration of the auxiliary driving magnets 121, 122, and 22 are respectively based on their opposite sides ( The upper and lower sides of the line segment 1213, 1214, 1223, 1224, 2201, 2202) are connected by at least one diagonal line segment 1212, 1222, 2203, and 2204, and the opposite sides (upper and lower sides 1213, 1214, 1223, 1224, 2201, 2202) The line length difference is greater than 20%. By using the configurations in which the upper and lower sides of the auxiliary driving magnets 121, 122, and 22 have different lengths, the overlapping ends of the auxiliary driving magnets 121, 122 and the auxiliary driving magnet 22 projected on the adjacent surface 100 respectively pass a diagonal line segment 1212, 1222, 2203, The notch configuration of the 2204 connection reduces the force between the magnetic fields of the auxiliary driving magnets 121, 122, and 22. The relative lengths of the upper 1213, 1223, and 2201 line segments are relatively short, which can reduce the area of the overlapping area of the auxiliary driving magnets 121, 122, and 22, reduce the force, and thereby improve the magnetic interference between adjacent lens modules 10 and 20. The lower lengths of the auxiliary driving magnets 121, 122, and 22 below 1214, 1224, and 2202 are longer, and the driving force generated by the interaction with the translation coil provided on the circuit board below can be increased. In the multi-lens camera module of this embodiment, magnetic interference is significantly improved under the same power consumption.

Please refer to FIG. 8A to FIG. 8F. In the multi-lens camera module of the present invention, the sub-driving magnets of two adjacent lens modules on the side of the adjacent surface are projected on the adjacent surface in several different ways. Schematic representation of the embodiment. In different aspects of these embodiments, The projection of the auxiliary driving magnets 121, 122, 22 onto adjacent surfaces will include at least one auxiliary driving magnet 121, 122, 22 which has at least one opposite side (upper and lower sides 1213, 1214, 1223, 1224, 2201, 2202). ) The sides are of unequal length and are connected by at least one diagonal segment, arc segment 1215, 1225, 2205, 2206, or right-angle segment 1216, 1226, 2207, 2208 to connect the upper and lower sides of different lengths 1213, 1214, 1223, The two ends of 1224, 2201, and 2202 constitute the auxiliary driving magnets 121, 122, and 22 with a notched configuration, and the lengths of the opposite sides (upper and lower sides 1213, 1214, 1223, 1224, 2201, 2202) are different More than 20%.

Please refer to FIG. 9A and FIG. 9B; FIG. 9A is a schematic top view of a fourth preferred embodiment of the multi-lens camera module of the present invention. The first lens module is a lens module with a corner magnet. . FIG. 9B is a fourth preferred embodiment of the multi-lens camera module shown in FIG. 9A. A-A perspective view of the projection of the plurality of auxiliary driving magnets located on the adjacent surface onto the adjacent surface. As shown in FIG. 9A and FIG. 9B, the notch structure of the auxiliary driving magnets with at least one opposite side (upper and lower sides) with unequal lengths disclosed in the present invention can also be applied to the corner driving magnets 12 Lens module 10a. The fourth preferred embodiment of the multi-lens camera module of this case is different from the first preferred embodiment in that the first lens module 10a includes a corner-type driving magnet 12 configuration on the adjacent surface 100, that is, it is located on the adjacent surface. The magnetization directions of the at least one auxiliary driving magnets 12 and 22 on both sides of 100 and belonging to two different lens modules 10a and 20 are not parallel to each other. Referring to FIG. 9B, the length 220a of the upper side 2201 of the auxiliary driving magnet 22 is relatively short, so that the two sides are close to the side in the direction of the corner driving magnet 12 and the length of the area near the central axis is kept so that the center has a large height, which can keep the The Z-axis drive coil acts on a large area to ensure the thrust in the Z-axis direction. The length 220 a1 of the lower side 2202 of the auxiliary driving magnet 22 is relatively long, which improves the driving force generated by the interaction with the translation coil on the circuit board below. That is, reducing the active area of the two ends of the auxiliary driving magnet 22 in the Y-axis direction, effectively reducing the magnetic field force of the two ends of the magnet opposing the adjacent corner-type driving magnet 12.

Please refer to FIG. 9C to FIG. 9G, respectively. Among the multi-lens camera modules of the present invention, the first lens module is a lens module with a corner magnet, and two adjacent lens modules are located on adjacent surfaces. Schematic diagrams of several different embodiments of the auxiliary driving magnet projected on the adjacent surface. The difference between the embodiments shown in FIGS. 9C and 9D and FIG. 9B is that in FIGS. 9C and 9D, the auxiliary driving magnet 22 of the second lens module 20 located at an adjacent surface is a Long rectangles with the same length (top and bottom 2201, 2202). The two sides of the first lens module 10 a located at adjacent surfaces are corner-type driving magnets 12, which utilize the upper and lower sides of the surface facing the auxiliary driving magnet 22. The lower 1213a and 1214a are configured with different lengths, and a notch structure is formed in a direction adjacent to the second auxiliary driving magnet 22 to reduce the force between the magnetic fields. In other words, the two sides of the first lens module 10a at the adjacent sides are corner-type driving magnets 12 and the upper side 1213a of the side facing the auxiliary driving magnet 22 has a shorter side length b. 22, and keep the area near the main drive magnet on the outside, and avoid the larger magnetic field of the boundary area of the drive magnets 12 and 22. At the same time, the corner type drive magnet 12 has a longer length b1 below to maintain it and the translation coil. The driving force generated by the action.

The embodiment shown in FIGS. 9E, 9F, 9G, and 9B differs from the embodiment shown in FIG. 9E, FIG. 9F, and FIG. 9G in that the second lens module 20 on the adjacent surface is The second sub-drive magnet 22 and the two corner-type drive magnets 12 of the first lens module 10a, all three of which use different configurations of opposite sides (upper and lower sides) of different lengths, respectively in the second sub-drive magnet 22 and the corner At least one notch is arranged at the adjacent end of the type driving magnet 12 to reduce the force interference between magnetic fields. That is, the end of the corner-type driving magnet 12 facing the second auxiliary driving magnet 22 has a short upper length b, which reduces the volume of the area near the second auxiliary driving magnet 22 and retains the volume of the area near the main driving magnet 23 on the outside. . At the same time, the length a of the upper side of the second auxiliary driving magnet 22 is short, so that the sides are close to the corner driving magnet 12 in the direction of the side, and the length of the region close to the central axis is kept to avoid the larger magnetic field in the boundary regions of the driving magnets 12 and 22. . The corner-type driving magnet 12 has a long remaining length b1 at the lower side, and maintains the driving force generated by the interaction with the translation coil. In other words, whether the auxiliary driving magnet is long or corner-shaped 12 or 22, the projection of the auxiliary driving magnet onto the adjacent surface will have at least one opposite side (upper and lower sides) with side edges of different lengths, and at least one diagonal line segment, The notch configuration formed by connecting arc segments or right-angle segments can reduce magnetic interference.

FIG. 10A is a schematic top view of a fifth preferred embodiment of a multi-lens camera module according to the present invention. Two adjacent lens modules include a first lens module 10 and a second lens module 20. At the adjacent faces of the two lens modules 10, 20, a plurality of auxiliary driving magnets 121, 122, 22 are staggered along the Y-axis direction with adjacent faces apart, and each has a center parallel to the imaging optical axis axis. From the X-axis direction, there is a distance W between the central axes of the plurality of auxiliary driving magnets 121, 122, and 22 (not shown in the figure), and the projection of the plurality of auxiliary driving magnets 121, 122 and the auxiliary driving magnet 22 in the X-axis direction may be Partially overlap each other. The distance W1 between the main driving magnet 23 and the auxiliary driving magnet 22 of the second lens module 20 is greater than the distance W3 between the main driving magnet 13 and the auxiliary driving magnets 121 and 122 of the first lens module 10, so that the magnetic lines of force can pass. The fifth preferred embodiment has a larger The second lens module 20 with a distance of W1 is between the auxiliary driving magnet 22 and the main driving magnet 23 on its adjacent surface, that is, a small auxiliary magnet 24 is added at a distance of W2 from the side of the main driving magnet 23. The fixed frame (frame body) is located close to the adjacent surface, and is positioned beyond the inner edge of the auxiliary driving magnet 22. The configuration of the auxiliary magnet 24 is used to adjust the interaction force between two adjacent lens modules 10 and 20. The same polarities of the main driving magnets 13 and 23 and the auxiliary driving magnets 11, 121, 122, 21, 22 and auxiliary magnets 24 of the two adjacent lens modules 10 and 20 face the respective lens sides. When the distance between the two lens modules 10 and 20 is constant, part of the magnetic field of the main driving magnet 23 will pass through the width W2 space, reducing the interference of force with the auxiliary magnet 24, which is beneficial to product assembly. The auxiliary magnet 24 and the auxiliary driving magnet 22 have a distance W4 which may be equal to the distance W1 between the main driving magnet 23 and the auxiliary driving magnet 22, or another preferred configuration distance. Since the auxiliary magnet 24 of the second lens module 20 is close to the first lens module 10 and the magnetic field is strong, the magnetic lines of force of the auxiliary magnet 24 pass through the W4 space and the plurality of driving magnets 13 and 121 of the first lens module 10 And 122 magnetic fields, a force is generated between the two to make a balanced configuration with the forces between the auxiliary driving magnets 121, 122, and 22 on adjacent surfaces. The interaction force between the auxiliary magnet 24, the main driving magnets 13, 23, and the auxiliary driving magnets 121, 122, and 22 is determined by the magnetic interference orientation between the magnetic fields of the two lens modules 10 and 20.

The invention reduces the mutual interference between magnetic fields by increasing the balance force of the auxiliary magnet and the notch configuration.

Please refer to FIG. 10B, which is the fifth preferred embodiment of the multi-lens driving module of the present invention as shown in FIG. 10A. The second lens module is provided with an auxiliary magnet and no auxiliary magnet. Schematic diagram of the test results that caused the optical axis shift. In FIG. 10B, curve C is a curve without auxiliary magnets, and curve C1 is a curve in which at least one auxiliary magnet 24 is added to the space next to the main driving magnet 23 adjacent to the end of the second lens module 20. The main driving magnets 13 and 23 and the auxiliary driving magnets 11, 121, 122, 21, 22 and the auxiliary magnet 24 of the two adjacent lens modules 10 and 20 face the respective lens sides with the same polarity. The optical axis displacement 0 (um) is an undisturbed state. Observe the optical axis displacement results from the distance range of the two lens modules 10 and 20. The curve C1 obtained after adding the auxiliary magnet 24 does have relatively small magnetic field interference. The displacement of the curve C1 at the distance of 1.2 mm between the two adjacent lens modules 10 and 20 is 0 (um); the curve C has an optical axis displacement value of -39 (um). The near-field positions of the two lens modules 10 and 20 are relatively close, and the value of the optical axis displacement driven by the force changes significantly in the positive direction. Therefore, the size structure of the driving device of the adjacent lens module is not changed. Next, the addition of at least one auxiliary magnet 24 increases the force and helps to balance the force distribution of the magnetic field Reduce magnetic interference between two adjacent lens modules 10 and 20.

The auxiliary magnet 24 described in the present invention only provides the effect of magnetic field balance, and its main purpose is not to provide thrust with the driving coil, nor to affect the thrust balance of the original design; in other words, the thrust for pushing the lens carrier to move, It is mainly generated by the interaction between the main driving magnet and the driving coil, and it is not necessary to rely on the thrust generated by the interaction between the auxiliary magnet 24 and the driving coil. Contribution. The auxiliary magnet 24 has the characteristics of unlimited size and tolerance in installation, and does not need to have the same height or the same thickness as the main driving magnet 23. Under the limitation of the manufacturing process of the auxiliary magnet 24 size, different magnetic energy products can be selected to balance the force and reduce the magnetic field interference. Since the size does not need to be the same as other drive magnets 11, 121, 122, 13, 21, 22, and 23, the configuration of the auxiliary magnet 24 is a design flexibility and simple magnetic interference reduction structure that is not limited to the precise manufacturing process of the module. The smaller auxiliary magnet 24 is configured to reduce the magnetic interference between the two adjacent lens modules 10 and 20, so that the multiple auxiliary driving magnets 121, 122, and 22 can increase the volume or magnetic energy product to increase the translational thrust in the X-axis direction, thereby reducing Power consumption of the lens module.

Please refer to FIG. 11, which is a perspective view of a sixth preferred embodiment of a multi-lens camera module according to the present invention, and a driving magnet configuration example of two adjacent lens modules. The sixth preferred embodiment of the present invention shown in FIG. 11 is different from the fifth preferred embodiment shown in FIG. 10A in that the auxiliary magnet 24 in the sixth preferred embodiment of the present invention shown in FIG. Multipolar magnet. The driving magnets of two adjacent lens modules 10 and 20 have the same polarity toward the lens side. The magnetization direction of the auxiliary magnet 24 is the same as that of the main driving magnet 23 in parallel to the adjacent surface, and is perpendicular to the optical axis toward the lens side. The auxiliary magnet 24 is adjacent to the main driving magnet 23 at different polarities, so that the auxiliary magnet 24 of the second lens module 20 and the plurality of driving magnets 13, 121, 122 of the first lens module 10 generate a force. The magnetic force between the auxiliary magnet 24 of the second lens module 20 and the plurality of driving magnets 13, 121, and 122 of the first lens module 10 is relatively close, and it is the same as that of the auxiliary driving magnets 121, 122, and 22. The force of the magnetic field between them generates a balance force, thereby reducing the amount of magnetic interference generated by two adjacent lens modules 10 and 20 adjacent to each other. The forces generated between the multi-pole auxiliary magnet 24 and the main driving magnets 13 and 23 and the auxiliary driving magnets 121, 122 and 22 determine the orientation of magnetic interference between the magnetic fields of the two lens modules 10 and 20.

Please refer to FIG. 12, which is a schematic top view of a seventh preferred embodiment of the multi-lens camera module of the present invention. In the seventh preferred embodiment, two adjacent lens modules 10, 20 drive magnets with the same polarity toward the respective lenses, which is different from the fifth preferred embodiment shown in FIG. 10A. Therefore, the auxiliary magnet 24 on the second lens module 20 has a notched design. In order to make two adjacent lens modules 10 and 20 have more magnetic field force distribution in a limited distance, the position of the auxiliary magnet 24 of the present invention is moved closer to the direction of the adjacent surface, so that the auxiliary magnet 24 exceeds the auxiliary The plurality of driving magnets 13, 121, and 122 that are closer to the inner peripheral surface of the driving magnet 22 and closer to the first lens module 10 make the force generated therebetween stronger. The space of the suspension line on the second lens module 20 is used, wherein a gap is formed on the auxiliary magnet 24 to allow the suspension line to pass, and the structure space of the OIS lens module is effectively utilized to obtain more magnetic field forces and balance magnetic field interference between the magnetic fields. The magnetizing direction of the auxiliary magnet 24 is the same as that of the main driving magnet 23, and the same polarity is toward the lens. The magnetic force between the auxiliary magnet 24 and the auxiliary driving magnets 121, 122, and 22 of the second lens module 20 is balanced, thereby improving magnetic interference.

Please refer to FIGS. 13A to 13D, which are three-dimensional schematic diagrams of the driving magnet configuration examples of the two adjacent lens modules in the eighth to eleventh preferred embodiments of the multi-lens camera module of the present invention, respectively. . In these eighth to eleventh preferred embodiments, the plurality of driving magnets of each lens module face the lens side with the same polarity. The eighth to eleventh preferred embodiments shown in FIGS. 13A to 13D are different from the fifth preferred embodiment shown in FIG. 10A in that the main driving of the second lens module 20 is used The extension of the magnet 23 in the direction of the adjacent surface is designed as an additional convex extension 231, so that the magnetic field of the main driving magnet 23 is at a fixed lens module interval, because the distance of the extension 231 is closer to the first lens module 10, Generate strong magnetic field forces. Because of the unique notch configuration of the auxiliary drive magnet 22 with different lengths above and below, the open space makes it easier for the magnetic lines of force to reach the first lens module 10, and the auxiliary drive magnets 121, 122, and 22 on both sides of the adjacent surface. The resulting forces are balanced to reduce magnetic interference. The projection of the main driving magnet 23 onto the X-Z surface includes at least one opposite side (upper and lower sides) of different lengths. Lines of unequal length on opposite sides (upper and lower sides) are divided into two according to the optical axis, and the difference in length of lines of unequal length on the opposite side (upper and lower sides) in the projection is greater than 10%. The volume of the part that it extends can be smaller or thinner, so that a gentle and gradual magnetic field force is generated between them, as shown in Figure 13A, a long bar, Figure 13B, a gradual extension, or Figure 13C The thickness of the two line segments projected on the XY plane is unequal in length, and may also be an extension of the size of a main driving magnet 23 (equivalent size extension shown in FIG. 13D).

Please refer to FIG. 14, which is a twelfth preferred embodiment of the multi-lens camera module according to the present invention. An embodiment in which two adjacent lens modules on the side of an adjacent surface are projected on the adjacent surface is projected. Schematic representation. As shown in FIG. 14, the auxiliary driving magnets 121, 122, At least one opposite side (upper and lower sides) of the projection image projected onto an adjacent surface is different in length, and each of the auxiliary driving magnets 121, 122, and 22 having opposite sides (upper and lower sides) having different lengths may be formed by It consists of several independent small magnets 12191, 12192, 12291, 12292, 2292, 2291, and 2292 with a simple configuration (such as a block). By combining several small magnets 12191, 12192, 12291, 12291, 12292, 2291, and 2292 in a simple configuration to form auxiliary driving magnets 121, 122, and 22 with opposite sides (upper and lower sides) of different lengths, it is not only easy. Production can reduce the production loss of asymmetrical shape, and it is also beneficial to assembly production.

Please refer to FIG. 15A to FIG. 15C, which are schematic top views of several embodiments of the multi-lens camera module of the present invention. The number of lens modules may be greater than two and configured in different ways. As shown in FIG. 15A to FIG. 15C, it can be known that the number of lens modules of the multi-lens camera module of the present invention is not limited to two, and may also be three, four, five, or more. A multi-lens camera module in which the lens modules 91, 92, 94, 95, 96, 97 of the same structure or different structures are arranged and combined.

In the multi-lens camera module according to the present invention, the driving device is implemented in the form of a combination of multiple lens module structures with OIS, or a combination of multiple AF lens modules, or an AF lens module. The adjacent combination of the group and the lens module with OIS function can obtain low magnetic interference performance through the unique configuration of various driving magnets disclosed by the present invention; and the structure is either elastic type (ball type) or ball type (ball type) Type) lens modules are all within the scope of the present invention.

In the foregoing embodiment of the present invention, as shown in FIG. 10A, an auxiliary magnet is added at a predetermined distance from the main driving magnet on the adjacent surface side, and the main driving magnet is facing the phase as shown in FIGS. 13A to 13D. Several embodiments extending in the direction of the adjacent surface are balanced by the optimal distance between the main driving magnet (or auxiliary magnet) perpendicular to the adjacent surface to the adjacent surface to generate an appropriate force to balance the adjacent modules. Magnetic interference. Because the closer the distance between the magnets is, the greater the interaction force is, there is a force between the secondary drive magnets on both sides of the adjacent face, and the main drive magnet and the multiple drive magnets on the other side of the adjacent lens module also have a force; If the position of the main drive magnet is extended toward the adjacent surface, the secondary drive magnet that exceeds the adjacent surface will obtain a strong interaction force near the inner side of the lens; as long as there is a sufficient distance W1 in the path, it is sufficient to obtain the main drive magnet ( Or auxiliary magnets) and a plurality of driving magnets of the lens module on the other side of the adjacent side to balance the interaction forces to reduce the magnetic interference between the multi-lens camera modules.

For an embodiment combining the above force descriptions, please refer to FIG. 16A and FIG. 16B, which are respectively the thirteenth preferred embodiment of the multi-lens camera module of the present invention. Top view of three-dimensional exploded view and drive magnet configuration. The thirteenth preferred embodiment shown in FIGS. 16A and 16B is particularly directed to at least one first lens module 50 having an AF function and at least one second lens module having both an OIS and an AF function. Multi-lens camera module composed of group 60. There is an interval between the adjacent first lens module 50 (only AF) and the second lens module 60 (both OIS and AF). The distance center of this interval is called the adjacent surface 100.

The first lens module 50 and the second lens module 60 each have a camera optical axis, and define an X axis, a Y axis, and a Z axis direction that are perpendicular to each other, wherein the Z axis and the camera optical axis The two adjacent surfaces 100 are parallel to a plane defined by the Y-axis and the Z-axis. In this embodiment, the first lens module 50 and the second lens module 60 each include the following components: an upper cover 51, 61, a frame 52, 62, and a lens 53, 63 are disposed in a At least one elastic element (including upper elastic element 54,64 and lower elastic element 541,641) on the lens holder 531,631, and a first driving system 55,65. In addition, the second lens module 60 further includes a second driving system 46, a plurality of suspension wires 67, and a connection plate 68 in addition to the aforementioned components.

The upper covers 51, 61 include a perforation. The frames 52 and 62 are located in the upper covers 51 and 61 and form an accommodating space therein. The lenses 53,63 and the lens mounts 531,631 are disposed in the accommodating space inside the frames 52,62. The outer end and the inner frame of the at least one elastic element (including the upper elastic element 54,64 and the lower elastic element 541,641) are respectively combined with the upper and lower end faces of the frame bodies 52,62 and the lens bearing bases 531,631, and are matched. The positioning pieces 521,621 located on the lower end of the frame body 52,62 sandwich and locate the lower elastic elements 541,641 on the frame body 52,62, for restricting the lenses 53,63 (together with the lens holders 531,631) in the accommodation space. Displacement in the direction of the imaging optical axis.

The first driving system 55, 65 includes: at least one driving coil 551, 651, and a pair of corresponding two main driving magnets 552, 652. Among them, the driving coils 551, 651 are provided on the periphery of the lens holders 531, 631 of the lenses 53, 63, and correspond to the plurality of driving magnets (including the main driving magnets 552, 652) combined in the frame 52, 62, providing Z The driving force in the axial direction is used as a driving device for AF. The driving coils 551 and 651 are a toroidal unipolar coil, but they can also be one of a toroidal bipolar coil, a flat bipolar coil, or a printed circuit board (PCB) with a coil circuit. Divided under the first lens module 50 and the second lens module 60 An external circuit 301, 401 is provided, and an image sensing element 302, 402 is provided at each of the external circuits 301, 401, which are used to receive the lenses 53 and 64 gathered from the first and second lens modules 50 and 60. The imaged external image light is converted into an image signal that can be interpreted by a computer.

In this embodiment, since the first lens module 50 does not have an OIS function, there is no need to provide a secondary driving magnet; however, the first lens module 50 is additionally provided with a volume smaller than a quarter of the main driving magnet 552 Two auxiliary magnets 553 to reduce magnetic interference. In contrast, since the second lens module 60 has an OIS function, at least two auxiliary driving magnets 653 are provided, and the volume of the auxiliary driving magnet 653 is less than or equal to the main driving magnet 652. The auxiliary lens 553 is disposed on the side of the first lens module 50 adjacent to the adjacent surface 100, and the auxiliary driving magnet 653 is disposed on the side of the second lens module 60 adjacent to the adjacent surface 100.

The second driving system 66 of the second lens module 60 includes at least: a circuit board 661 and at least two translation coils 662,663,664,665. The at least two translation coils 662, 663, 664, and 665 are disposed on the circuit board 661 and correspond to the two main driving magnets 652 and the at least two auxiliary driving magnets 653 of the second lens module 60, respectively, and provide translational axes of the X-axis and Y-axis. The thrust is used as the driving device of OIS. The connection board 68 is electrically connected to the circuit board 661 and the external circuit 401, respectively. The external circuit 401 is located below the frame 62, and includes an image sensing element 402 and other related electronic components. The plurality of suspension wires 67 have the characteristics of elastic suspension and conductivity, respectively, and the suspension wires 67 are respectively elastic to the frame 62, the lens holder 631 (together with the lens 63), the elastic elements 64,641 and the like. Hanging directly above the circuit board 661. The bottom plate 611 is combined with the bottom surface of the upper cover 61.

In the embodiment shown in FIGS. 16A and 16B, the first lens module 50 includes at least one auxiliary magnet 553 having a smaller volume and is disposed on the side of the adjacent surface 100 and the other side of the adjacent surface 100. It is at least one pair of driving magnets 653 of the second lens module 60. The plurality of driving magnets (including the main driving magnets 552 and 652 and the sub driving magnets 653) and the auxiliary magnets 553 have a unipolar magnetic field direction toward the respective lens 53 side.

The main driving magnets 552 and 652 of the two adjacent lens modules 50 and 60 are respectively disposed on the frames 52 and 62 on both sides of the lens on the vertical adjacent surface 100, and the auxiliary magnet 553 is disposed on the symmetrical centerline of the main driving magnet 552. The side of the adjacent surface 100 is provided with an auxiliary magnet 553 for the purpose of providing a balanced magnetic interference force, not for the lens drive thrust; in other words, the thrust for the lens mount 531 is mainly driven by the main Drive magnets 552 and The interaction between the driving coil 551 and the thrust generated by the interaction between the auxiliary magnet 553 and the driving coil 551 does not need to be considered in the design, so it is not necessary to consider the contribution of the auxiliary magnet 553 to the aforementioned thrust for pushing the lens holder 531 to move. The main driving magnets 552 on both sides of the first lens module 50 and the driving coil 551 on the lens generate electromagnetic force corresponding to the lens 53 to move the lens 53 along the optical axis direction as the AF drive. The second lens module 60 includes a plurality of driving magnets (including a main driving magnet 652 and a sub-driving magnet 653) arranged on the outer frame 62 of the lens, which can not only generate electromagnetic force with the driving coil 651 to push the lens 63 to move along the optical axis direction, but also It can also act with the translation coils 662, 663, 664, and 665 to generate a driving force in the translation direction, pushing the lens to move in the X and Y directions, and providing an OIS function.

Viewed from the arrangement direction of the vertical adjacent surface 100, the auxiliary magnet 553 and the auxiliary driving magnet 653 on the other side of the adjacent surface 100 overlap each other on the adjacent surface 100, and each of them includes a center parallel to the imaging optical axis. The projection of the axes onto the adjacent surface 100 may be overlapped. A small auxiliary magnet 553 on one side of the adjacent surface 100 and at least one pair of driving magnets 653 on the other side are used to obtain a force. The length L1 of the auxiliary magnet 553 is less than the configuration range L2 of at least one pair of driving magnets 653 on one side of the adjacent face 100; the distance W1 between the ends of the auxiliary magnet 553 and the main driving magnet 552 is greater than at least one pair of driving magnets 653 on the other side of the adjacent face 100 The distance W3 to the main drive magnet 652. The first lens module 50 with the auxiliary magnet 553 has a length range of the main driving magnet 552 that is more than or equal to the inner side of the lens near the lens. The distance W5 between the main driving magnet 552 of the first lens module 50 and the adjacent surface 100 is smaller than the distance W6 between the main driving magnet 652 of the second lens module 60 and the adjacent surface 100. The projection images of the main driving magnet 552 and the auxiliary magnet 553 of the first lens module 50 on the X-Z plane partially overlap each other. A multi-lens camera module with low magnetic interference is obtained by utilizing the balance between the magnetic forces between the magnets 552, 553, 652, and 653.

In the first lens module 50, the same lens is located at a position farther away from the adjacent surface 100 and the auxiliary magnet 553. The auxiliary magnet 553 may be set on the frame or the auxiliary magnet 533 on the lens. Corresponding to the sensor, or no auxiliary magnet is provided for a gap.

As shown in FIG. 17A, FIG. 17B, and FIG. 17C, the fourteenth, fifteenth, and sixteenth preferred embodiments of the multi-lens camera module of the present invention have three adjacent lenses, respectively. A schematic top view of a driving magnet configuration example of a module.

In the fourteenth preferred embodiment shown in FIG. 17A, the three lens modules 91 and 92 arranged in a row include the first lens module 91 located in the center and the first lens modules respectively. The two second lens modules 92 on the left and right sides of the group 91; the first lens module 91 in the center and the two second lens modules 92 on the two sides thereof have an adjacent surface 100 respectively. Each of the lens modules 91 and 92 of the multi-lens camera module of the present invention, the sub-driving magnets 912, 922, and 923 located at the adjacent surface 100 are along each other along the adjacent surface 100 and across the adjacent The surfaces 100 are staggered, and the length setting range L1 of the auxiliary driving magnets 912 of the first lens module 91 is smaller than the length setting range L2 of the two driving magnets 922 and 923 on the other side of the adjacent surface 100. The two ends of the auxiliary driving magnet 912 of the first lens module 91 and the main driving magnet 911 have a space W1 therebetween. The length of the main driving magnet 911 of the first lens module 91 is longer than that of the main driving magnet 921 of the second lens module 92. In addition, the length setting range L2 of the two driving magnets 922 and 923 of the second lens module 92 is also larger than the length of the main driving magnet 921 of the second lens module 92. On the side of the second lens module 92 further away from the adjacent surface 100, there is another auxiliary driving magnet 924, whose volume or length can be approximately equal to the sum of the volume or length of the two driving magnets 922, 923, or approximately equal to the main The volume or length of the driving magnet 921.

In this embodiment, the length of the main lens 911 configuration of the first lens module 91 is increased, and the length range of the sub-drive magnets 922 and 923 of the second lens module 92 on the adjacent surface 100 side is increased to obtain a multi-lens camera. The magnetic force between the modules cancels the effect. The feature of this embodiment is that the length of the main driving magnet 911 of the first lens module 91 in the X-axis direction is extended beyond the inner diameter side of the side 100 of the adjacent driving magnet 912, and the first lens module 91 is the main driving magnet 911 The distance W5 to the adjacent surface 100 in the X-axis direction is smaller than the distance W6 to the adjacent surface 100 in the X-axis direction from the main driving magnet 921 of the adjacent second lens module 92; The left and right ends of the main driving magnet 911 of the first lens module 91 are partially overlapped with the sub driving magnets 912 disposed on the adjacent surface 100 side of the first lens module 91.

The length range L2 of the Y-axis direction provided by the two pairs of driving magnets 922 and 923 of the second lens module 92 on the adjacent surface 100 side is greater than the distance Y3 of the Y-axis direction of the two corresponding side surfaces of the main driving magnet 921. In other words, the setting range of the two driving magnets 922 and 923 of the second lens module 92 in the Y-axis direction exceeds the inner side of the main driving magnet 921 near the lens. The driving magnets 921 and the auxiliary driving magnets 922 and 923 are partially overlapped. Viewed from the direction in which the multi-lens camera module is arranged perpendicular to the adjacent surface, each of the auxiliary driving magnets 912, 922, and 923 is projected on the adjacent surface to partially overlap each other. Each of the driving magnets 911, 912, 921, 922, 923 is used. The balance of forces is configured to achieve low magnetic interference performance of the multi-lens camera module.

In the fifteenth preferred embodiment shown in FIG. 17B, the three lens modules 91 and 92 arranged in a row include the second lens module 92 in the center and the second lens module 92 respectively The two second lens modules 91 on both sides; the second lens module 92 in the center and the two first lens modules 91 on both sides of the second lens module 91 have an adjacent surface 100 respectively. Each of the lens modules 91 and 92 of the multi-lens camera module of the present invention, the sub-driving magnets 912, 922, and 923 located at the adjacent surface 100 are along each other along the adjacent surface 100 and across the adjacent The surfaces 100 are staggered, and the length setting range L1 of the auxiliary driving magnets 912 of the first lens module 91 is smaller than the length setting range L2 of the two driving magnets 922 and 923 on the other side of the adjacent surface 100. The two ends of the auxiliary driving magnet 912 of the first lens module 91 and the main driving magnet 911 have a space W1 therebetween. The length of the main driving magnet 911 of the first lens module 91 is longer than that of the main driving magnet 921 of the second lens module 92. In addition, the length setting range L2 of the two driving magnets 922 and 923 of the second lens module 92 is also larger than the length of the main driving magnet 921 of the second lens module 92. On the side of the first lens module 91 further away from the adjacent surface 100, another auxiliary driving magnet 913 is provided, and its volume or length may be equal to or greater than the volume or length of the auxiliary driving magnet 912.

In this embodiment, the length of the main lens 911 configuration of the first lens module 91 is increased, and the length range of the sub-drive magnets 922 and 923 of the second lens module 92 on the adjacent surface 100 side is increased to obtain a multi-lens camera. The magnetic force between the modules cancels the effect. The feature of this embodiment is that the length of the main driving magnet 911 of the first lens module 91 in the X-axis direction is extended beyond the inner diameter side of the side 100 of the adjacent driving magnet 912, and the first lens module 91 is the main driving magnet 911 The distance W5 to the adjacent surface 100 in the X-axis direction is smaller than the distance W6 to the adjacent surface 100 in the X-axis direction from the main driving magnet 921 of the adjacent second lens module 92; The two ends of the main driving magnet 921 of the first lens module 91 are partially overlapped with the sub driving magnet 912 and the other sub driving magnet 913 which are disposed on the adjacent surface 100 side of the first lens module 91.

The length range L2 of the Y-axis direction provided by the two pairs of driving magnets 922 and 923 of the second lens module 92 on the adjacent surface 100 side is greater than the distance Y3 of the Y-axis direction of the two corresponding side surfaces of the main driving magnet 921. In other words, the setting range of the two driving magnets 922 and 923 of the second lens module 92 in the Y-axis direction exceeds the inner side of the main driving magnet 921 near the lens. The driving magnets 921 and the auxiliary driving magnets 922 and 923 are partially overlapped. Observed from the direction in which the multi-lens camera module is vertically aligned with the adjacent surface, The stones 912, 922, and 923 are projected on adjacent surfaces to partially overlap each other. The force balance configuration of the driving magnets 911, 912, 921, 922, and 923 is used to obtain the low magnetic interference performance of the multi-lens camera module.

In the sixteenth preferred embodiment shown in FIG. 17C, the multi-lens camera module includes a first lens module 91, a second lens module 92, and a third lens module 93 that include different structures. Formed in a row. The second lens module 92 located in the center and the first lens module 91 and the third lens module 93 located on both sides of the second lens module 92 respectively have adjacent surfaces 100. Among them, the first lens module 91 and the second lens module 92 are lens modules having both AF and OIS functions, so they include main driving magnets 911 and 921 and auxiliary driving magnets 912, 913, 922, 923, and 924. Configuration. The third lens module 93 only has an AF function but does not have an OIS function, so it does not have a secondary driving magnet, but has a main driving magnet 931 that can provide AF driving force, and an auxiliary magnet that is not set to provide driving force. 932.

In the sixteenth preferred embodiment, the length setting range L1 of the auxiliary driving magnet 912 of the first lens module 91 in the Y-axis direction is smaller than the second lens module 92 provided on the other side of the adjacent surface 100. The length setting range L2 of the two driving magnets 922 and 923 in the Y-axis direction; meanwhile, the length setting range L1a of the auxiliary magnet 932 of the third lens module 93 in the Y-axis direction is also smaller than that of the adjacent surface 100 and the other A length setting range L2a of the auxiliary driving magnet 924 of the second lens module 92 disposed on the side in the Y-axis direction is set.

The two ends of the auxiliary driving magnet 912 of the first lens module 91 and the main driving magnet 911 have a distance W1 in the Y-axis direction, and the two ends of the auxiliary magnet 932 of the third lens module 93 and the main driving magnet 931 are in the Y-axis direction. The upper part has another interval W1a. The distance W5 of the first lens module 91 main driving magnet 911 to the adjacent surface 100 in the X-axis direction is smaller than the distance W6 of the adjacent second lens module 92 main driving magnet 921 to the adjacent surface 100 in the X-axis direction. . In addition, the distance W5a of the third lens module 93 main driving magnet 931 to the adjacent surface 100 in the X-axis direction is also smaller than that of the adjacent second lens module 92 main driving magnet 921 to the adjacent surface 100 in the X-axis direction. Distance W6. The sixteenth preferred embodiment shown in FIG. 17C is different from the embodiments shown in FIGS. 17A and 17B in that two of two adjacent faces 100 in a sixteenth preferred embodiment The auxiliary magnet 932 on the side of the third lens module 93 corresponds to the auxiliary driving magnet 924 of the second lens module 92. The center line of the parallel optical axis is projected on the adjacent surface 100 to overlap. The third lens module 93 with the auxiliary magnet 932 is a lens module with only AF.

Please refer to FIG. 18A, FIG. 18B, and FIG. 18C, which are a three-dimensional exploded view, a side view of some components, and an E-E sectional view of a seventeenth preferred embodiment of the multi-lens camera module of the present invention, respectively.

Since the seventeenth preferred embodiment of the multi-lens camera module of the present invention shown in FIG. 18A is substantially the same as the basic structure of the first preferred embodiment of the multi-lens camera module shown in FIG. 3A, In the following description, the same or similar components will be given the same component names and numbers and their structural details will not be repeated, but only the seventeenth preferred embodiment of the multi-lens camera module of the present invention will be described in terms of structure or function. The different sections are detailed. That is, the basic structure of the seventeenth preferred embodiment of the multi-lens camera module of the present invention shown in FIG. 18A, FIG. 18B, and FIG. 18C includes the same as shown in FIG. 3A. A first lens module 10 and a second lens module 20 having at least one adjacent surface. There is an interval between the adjacent first lens module 10 and the second lens module 20, and the distance center of this interval is called the adjacent surface 100. The first lens module 10 and the second lens module 20 each have a camera optical axis, and define an X axis, a Y axis, and a Z axis direction that are perpendicular to each other, wherein the Z axis and the camera optical axis The two adjacent surfaces 100 are parallel to a plane defined by the Y-axis and the Z-axis. In this embodiment, the first lens module 10 and the second lens module 20 each include at least a part of the following components: a cover 31, 41, a frame 32, 42, a The lenses 33, 43 are arranged on a lens bearing base 331, 431, at least one elastic element (including upper elastic elements 34, 44 and lower elastic elements 341, 441), a first driving system, a second driving system, a plurality of suspension wires 37, 47, and a connecting plate 38,48.

The cover 31,41 includes a perforation 311,411. The frame bodies 32 and 42 are located in the upper covers 31 and 41 and form an accommodating space in the inside. The lenses 33, 43 and the lens mounts 331, 431 are disposed in the accommodating space inside the frame bodies 32, 42. The at least one elastic element (including the upper elastic element 34, 44 and the lower elastic element 341, 441) is coupled to the upper and lower end faces of the frame body 32, 42 for restricting the lens 33, 43 (together with the lens bearing seats 331, 431). A displacement in the accommodation space along the direction of the imaging optical axis.

The first driving system includes: at least one driving coil 351, 451, a pair of corresponding two main driving magnets 13, 23, and at least two auxiliary driving magnets 11, 121, 122, 21, 22. Among them, the driving coils 351, 451 are combined with the periphery of the lens mounts 331, 431 of the lens 33, 43 and with the plurality of driving magnets (including the main driving magnets 13, 23 and the auxiliary driving magnets) combined in the frame 32, 42. Corresponding to moving magnets 11,121,122,21,22), it provides driving force in the Z-axis direction as a driving device for AF.

The second driving system includes at least: a circuit board 361,461, and at least two translation coils 362,363,364,365,462,463,464,465. The at least two translation coils 362, 363, 364, 365, 462, 463, 464, 465 are disposed on the circuit boards 361, 461 and correspond to the two main driving magnets 13, 23 and the at least two auxiliary driving magnets 11, 121, 122, 21, 22, respectively, and provide translational axes of the X-axis and Y-axis. Thrust to act as a drive for OIS.

The connection boards 38 and 48 are electrically connected to the circuit boards 361 and 461 and an external circuit 301 and 401, respectively. The external circuits 301 and 401 are located below the casings 32 and 42, and an image sensing element 302 and 402 are disposed on the external circuits. The plurality of suspension wires 37 and 47 have the characteristics of elastic suspension and conductivity respectively, and the suspension wires are respectively the frame body 32, 42, the lens mount 331, 431 (together with the lenses 33, 43), and the elastic element 34, 341. Together, 44,441 are elastically suspended directly above the circuit boards 361,461. The bottom plates 300, 400 are disposed below the circuit boards 361, 461 and fixed to the bottom of the upper covers 31, 41, so as to accommodate the aforementioned components between the upper covers 31, 41 and the bottom plates 300, 400.

In the seventeenth preferred embodiment, one or more position sensors, such as Hall elements, can be selectively added to the circuit boards 361,461 or the connection boards 38,48, respectively, for detecting the lens bearing. Blocks 331,431 with the lenses 33,43 above them relative to the frame 32,42 in the optical axis (Z-axis) direction, or / and the detection frames 32,42 together with the lenses 33,43 within the circuit board The position of 361,461 in the horizontal direction (X-axis and Y-axis) provides the function of closed-loop control of AF or / and OIS.

In the seventeenth preferred embodiment, the at least two auxiliary driving magnets include the auxiliary driving magnets 11, 121, 122, 21, and 22. The first lens module 10 and the second lens module 20 are adjacent to each other and have the adjacent surface 100 between the two lens modules 10 and 20. The two pairs of driving magnets 121 and 122 of the first lens module 10 adjacent to the adjacent surface 100 and the pair of driving magnets 22 of the second lens module 20 adjacent to the adjacent surface 100 are three of the two lenses. The driving device is staggered in the Y-axis direction with the adjacent surface 100 interposed therebetween. That is, although the three auxiliary driving magnets 121, 122, and 22 are separately disposed on both sides of the adjacent surface 100, the projection of the three auxiliary driving magnets 121, 122, and 22 onto the adjacent surface 100, The three are alternately arranged in the order of the sub-driving magnet 121, the sub-driving magnet 22, and the sub-driving magnet 122 across the adjacent surface 100 along the Y-axis direction. It is found that the projections of the three auxiliary driving magnets 121, 122, and 22 onto the adjacent surface 100 do not completely overlap.

In the seventeenth preferred embodiment, the structures of the auxiliary driving magnets 121, 122, and 22 of the two lens modules 10 and 20 are similar to those of the second preferred embodiment shown in FIGS. 4A and 7. That is, the projections of the auxiliary driving magnets 121, 122, and 22 of the two lens modules 10 and 20 onto the adjacent surface 100 each have at least one opposite side (upper and lower sides) of different lengths, and the auxiliary driving magnets 121 have different lengths. The bevel configurations of, 122, and 22 are respectively formed by connecting at least one oblique line at both ends of the line segments of the opposite sides (upper and lower sides), and the length difference of the line segments of the opposite sides (upper and lower sides) is greater than 20%. . Using the configuration in which the upper and lower sides of the auxiliary driving magnets 121, 122, and 22 have different lengths, the overlapping ends of the auxiliary driving magnets 121, 122 and the auxiliary driving magnet 22 projected on the adjacent surface 100 are each connected by a diagonal line segment with a notch configuration. , Reduce the force between the secondary drive magnets 121, 122, 22 magnetic field. The upper line segment has a relatively short length, which can reduce the area of the overlapping area of the auxiliary driving magnets 121, 122, and 22, reduce the force, and improve the magnetic interference between adjacent lens modules 10 and 20. The length of the lower side of the auxiliary driving magnets 121, 122, and 22 is longer, which can increase the driving force generated by the interaction with the translation coil provided on the circuit board below.

In the seventeenth preferred embodiment, the structure of the main driving magnet 23 of the second lens module 20 is similar to that of the eighth preferred embodiment shown in FIG. 13A. That is, the extension of the main driving magnet 23 of the second lens module 20 toward the adjacent surface is designed as an extra convex elongated extension, so that the magnetic field of the main driving magnet 23 is at a fixed lens module interval. Because the distance of the extension portion is closer to the first lens module 10, a stronger magnetic field force is generated. Because of the unique notch configuration of the auxiliary drive magnet 22 with different lengths above and below, the open space makes it easier for the magnetic lines of force to reach the first lens module 10, and the auxiliary drive magnets 121, 122, and 22 on both sides of the adjacent surface. The resulting forces are balanced to reduce magnetic interference. The projection of the main driving magnet 23 onto the X-Z surface includes at least one opposite side (upper and lower sides) of different lengths. Lines of unequal length on opposite sides (upper and lower sides) are divided into two according to the optical axis, and the difference in length of lines of unequal length on the opposite side (upper and lower sides) in the projection is greater than 10%. The volume of the extended part can be smaller or thinner, so that a slow and gradual magnetic field force is generated between them.

In addition, it can be seen from FIGS. 18A and 18C that the four suspension wires 47 of the second lens module 20 have another feature. Since the two main driving magnets 23 of the second lens module 20 have an elongated extension extending in the direction of the adjacent surface 100, it will affect the suspension wire 47 that should be provided at the corner of the frame 42; therefore, Overhangs of the upper and lower sides of the auxiliary driving magnet 22 provided at the adjacent surface 100 The setting position of the suspension wires 47 (that is, the two suspension wires 47 on the left side of the second lens module 20) is not located at the corners, but is slightly offset toward the two ends of the auxiliary driving magnet 22 to avoid the two main driving magnets 23. Extra convex elongated extension. In other words, since the length of the auxiliary driving magnet 22 adjacent to the adjacent surface 100 on the left side of the second lens module 20 is short, there is a space on each of the upper and lower sides of the second lens module 20 for hanging wires 47 to make the second lens module 20 The two suspension wires 47 on the left side adjacent to the adjacent surface 100 are not located at the corners. Therefore, the positions of the four suspension wires 47 of the second lens module 20 are not completely symmetrical (the positions of the two suspension wires 47 adjacent to the side of the adjacent surface 100 are closer to the upper and lower ends of the auxiliary driving magnet 22 and are not located at the corner of the frame 42 The two suspension wires 47 far from the side of the adjacent surface 100 are located at the corner of the frame 42), which satisfies the extension structure design of the main driving magnet 23 and balances the interaction forces between the two lens modules 10 and 20.

Please refer to FIG. 19A and FIG. 19B, which are the seventeenth preferred embodiment of the multi-lens camera module of the present invention as shown in FIGS. 18A to 18C, respectively. Side view and three-dimensional view of the dispensing process.

Due to the lens drive device with optical stabilization system for smart phones, there is a tendency to miniaturize the structural design. The maximum width in the horizontal direction of the X-axis and Y-axis is usually only about 6-12mm, and in the Z-axis direction The maximum height is also only between 2-5mm, so many miniaturized parts inside the lens drive device are not only small in size, but also the distance between each part is even smaller, resulting in a typical optical The lens driving device 10 of the stabilization system is very difficult to perform a process of applying a damping medium such as, but not limited to, damping soft rubber.

In order to solve the above-mentioned difficulties, the multi-lens camera module of the present invention specifically adds a plurality of upper surfaces of the frame 42 to the frame 42 of the first and second lens modules (taking the second lens module 20 as an example). The notch spaces 425 extending downward (in the Z-axis direction), and the bottom of each notch space 425 is a position where the damping medium 426 is expected to be applied. Viewed from a view perpendicular to the optical axis, as shown in FIG. 18C, the driving magnets 21, 23 of the second lens module 20 have a relatively large interval. The frame body 42 includes at least a penetrating notch space 425 provided at a relatively large interval corresponding to adjacent driving magnets 21 and 23. Thereby, during the manufacturing process of the second lens module 20, the probes 81 of the shock absorbing medium coating device 80 can easily penetrate these provided on the frame body 42 from top to bottom (that is, along the Z axis direction). The notched space 425, and the damping medium 426 is applied at the bottom position of each notched space 425, so that the damping medium 426 partially contacts (connects) the frame The bottom surface of the body 42 and the other portion are in contact with (connected to) the upper surface of the circuit board 461. In addition, the medium light curing device (not shown) can also directly irradiate the shock-absorbing medium 426 in the form of a diluted fluid downward from the top of the lens module 20 to achieve the purpose of thickening the shock-absorbing medium 426. Provides shock absorption. Not only can provide a single axial (Z-axis direction) operation to apply and cure the damping medium 426 straight up and down parallel to the optical axis to save production man-hours, at the same time reduce the space between the production discs to increase the batch size, improve the lens drive device The space structure is small, and the shock-absorbing medium extending in the light-curing process is blocked and the curing of the shock-absorbing medium is insufficient, the curing time is long, and the power consumption characteristics are unstable.

However, the above-mentioned embodiments should not be used to limit the applicable scope of the present invention. The protection scope of the present invention should be the scope encompassed by the technical spirit defined by the scope of patent application of the present invention and its equivalent changes. That is to say, all equal changes and modifications made in accordance with the scope of the patent application of the present invention will still not lose the essence of the present invention, nor depart from the spirit and scope of the present invention, so they should be regarded as the further implementation status of the present invention.

Claims (23)

A multi-lens camera module includes at least a first lens module and a second lens module disposed adjacently; there is a space between the first lens module and the second lens module, and the interval is The distance center is referred to as an adjacent surface; the two sides of the adjacent surface are the first lens module and the second lens module; the first lens module and the second lens module are respectively defined as perpendicular to each other. An X axis, a Y axis, and a Z axis direction; each of the first lens module and the second lens module has a camera optical axis parallel to the Z axis; wherein the first lens module and the second lens module The two lens modules each include: an upper cover; a frame body located in the upper cover and forming an accommodation space therein; a lens disposed in the accommodation space inside the frame body; a first A driving system includes: a driving coil and a plurality of driving magnets; wherein the driving coil is coupled to the periphery of the lens and corresponds to the plurality of driving magnets incorporated in the frame, and is provided along the Z-axis direction Thrust; characterized in that the The plurality of driving magnets includes two main driving magnets corresponding to each other; the plurality of driving magnets of the second lens module includes: two main driving magnets and at least one pair of driving magnets corresponding to each other; the sub lens of the second lens module The driving magnet is smaller than the main driving magnet of the second lens module; and, the second lens module is provided with the auxiliary driving magnet at the adjacent surface, and the first lens module is at the adjacent surface. This main drive magnet is not set. The multi-lens camera module according to item 1 of the patent application scope, wherein: the plurality of driving magnets of the first lens module further include at least one driving magnet; and the first lens module and the second lens The modules are respectively provided with at least one auxiliary driving magnet at the adjacent surface; each of the auxiliary driving magnets has a central axis parallel to the optical axis of the camera, and each central axis is separated by a distance; and is located on the adjacent surface Each of the auxiliary driving magnets is staggered with each other along the adjacent surface and across the adjacent surface; a projection of each of the auxiliary driving magnets located at the adjacent surface onto the adjacent surface, of which at least one The projection of the driving magnet on the adjacent surface has a configuration in which the opposite sides have different side lengths. The multi-lens camera module according to item 1 of the patent application scope, wherein the first lens module and the At least one of the second lens module further includes a second driving system. The second driving system includes a circuit board, and at least two translation coils are disposed on the circuit board and correspond to the plurality of driving magnets. Provides translational axial thrust; a plurality of suspension wires have the characteristics of elastic suspension and conductivity, and the suspension wires are respectively elastically suspended from the frame, the lens, and the elastic element on the circuit board Directly above; at least one sensor is arranged below the plurality of driving magnets and connected to the connection board; and an external circuit is coupled below the frame and electrically connected to the circuit board, and the external circuit further includes There is an image sensing element; wherein the lens further includes: a lens group and a lens bearing seat; wherein the lens group is disposed at the center of the lens bearing seat and is synchronously displaced with the lens bearing seat. The multi-lens camera module according to item 3 of the patent application scope, wherein the external circuit further includes at least one sensor; and at least one of the first lens module and the second lens module It further includes at least one sensing magnet, which is disposed outside the lens and is aligned with one of the sensors on the external circuit. The multi-lens camera module according to item 2 of the scope of patent application, wherein the volume of the auxiliary driving magnet located at the adjacent surface is at least smaller than that of the same lens module and located farther away from the adjacent surface and the auxiliary The volume of the other driving magnet corresponding to the driving magnet. The multi-lens camera module according to item 2 of the scope of patent application, wherein, at the two ends of the sub-driving magnet located at the adjacent surface and having different lengths of opposite sides, the opposite sides of the line segment are formed by at least two ends. An oblique, arc, or right-angled segment to extend the connection. The multi-lens camera module according to item 6 of the scope of the patent application, wherein the difference in line lengths of the auxiliary driving magnets located at the adjacent faces and having different opposite sides and sides is greater than 20%. . The multi-lens camera module according to item 2 of the scope of patent application, wherein the plurality of sub-driving magnets are partially overlapped with each other along the adjacent surface and alternately arranged across the adjacent surface. The multi-lens camera module according to item 2 of the scope of patent application, wherein the magnetization directions of the plurality of auxiliary driving magnets located on both sides of the adjacent surface are not parallel to each other. The multi-lens camera module according to item 1 of the patent application scope, wherein the plurality of driving magnets included in at least one of the first lens module and the second lens module further include at least one An auxiliary magnet is disposed in the frame; the auxiliary magnet is disposed at the adjacent surface. The multi-lens camera module according to item 10 of the scope of patent application, wherein the auxiliary magnet is disposed between the auxiliary driving magnet and the main driving magnet, and a predetermined width from the main driving magnet; the auxiliary magnet The position is disposed beyond the inner side of the auxiliary driving magnet at the adjacent surface, and the auxiliary magnet and the main driving magnet face the lens side with the same polarity. The multi-lens camera module according to item 11 of the patent application scope, wherein the auxiliary magnet is a multi-pole magnet. The multi-lens camera module according to item 11 of the patent application scope, wherein the auxiliary magnet has a notch, and its magnetization direction is the same as the main driving magnet. The multi-lens camera module according to item 1 of the scope of patent application, wherein the first lens module and the second lens module located on both sides of the adjacent surface each include the main driving magnet The distance from this adjacent face is different. The multi-lens camera module according to item 14 of the patent application scope, wherein the main driving magnet included in one of the first lens module and the second lens module is adjacent to the adjacent The end of the face is one of the following: a sliver configuration, a height or thickness gradient configuration. The multi-lens camera module according to item 14 of the scope of patent application, wherein the main driving magnet included in one of the first lens module and the second lens module is projected onto the XZ plane. The projection includes a line segment of unequal length of opposite sides, which is divided into two according to the optical axis, and the length difference of the line segments of unequal length included in the main driving magnet is greater than 10%. The multi-lens camera module according to item 14 of the patent application scope, wherein the main driving magnet included in one of the first lens module and the second lens module is projected onto the XY plane. The projection includes a line segment of unequal length of opposite sides, which is divided into two according to the optical axis, and the length difference of the line segments of unequal length included in the main driving magnet is greater than 10%. According to the multi-lens camera module described in item 1 of the scope of the patent application, the plurality of driving magnets of the first lens module includes at least one auxiliary magnet with a relatively small volume, and the first lens module does not have a secondary driver. Magnet; the first lens module is provided with the auxiliary magnet at the adjacent surface. According to the multi-lens camera module described in item 18 of the scope of patent application, both the auxiliary magnet of the first lens module and the auxiliary driving magnet of the second lens module and the camera are located on both sides of the adjacent surface. The central axis parallel to the optical axis is projected on the adjacent surface to overlap. According to the multi-lens camera module described in item 14 of the scope of patent application, the main driver of the first lens module The distance W5 in the X-axis direction from the moving magnet to the adjacent surface is smaller than the distance W6 in the X-axis direction from the main driving magnet of the adjacent second lens module to the adjacent surface; projected on the XZ plane As shown in the figure, the end of the main driving magnet of the first lens module partially overlaps with a magnet disposed on the adjacent surface side of the first lens module. According to the multi-lens camera module described in item 14 of the scope of patent application, the second lens module is provided with two pairs of driving magnets at the adjacent surfaces; the positions of the two pairs of driving magnets in the Y-axis direction The main driving magnet that exceeds the second lens module is close to the inner side of the lens, which is observed from a projection image projected on the adjacent surface. The main driving magnet and the two pairs of driving magnets of the second lens module are Partial overlap. The multi-lens camera module according to the first patent application scope, wherein the multi-lens camera module is one of the following: an adjacent combination of a plurality of lens module with an optical stabilization system (OIS), Multiple adjacent lens modules with autofocus (AF), or adjacent lens modules with AF lens module and OIS function; and the first lens module and the second lens module It is one of the following: a spring-type lens module or a ball-type lens module. The multi-lens camera module according to item 1 of the scope of patent application, wherein at least one notch space is provided on the frame, and the notch space extends downward from the upper surface of the frame in the direction of the imaging optical axis, and the notch A damping medium is applied to the bottom of the space.