TWI793233B - 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, especially a camera module with Auto Focusing (AF for short), Voice Coil Motor (VCM for short), or an Optical Image Stabilizer (OIS for short). VCM and multi-lens camera module that can be used in electronic devices.

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

OIS (Optical Image Stabilizer) is the abbreviation of Optical Image Stabilizer System. It uses a gyroscope that can sense the shaking direction to measure 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 the hand-shaking environment.

Based on the development of multi-camera lens modules and the space constraints of mobile phones, two adjacent lens modules at the same time need to solve the problem of magnetic interference. The lens module structure with OIS shares the drive magnet on the basis of the traditional VCM AF. The drive magnet not only works with the drive coil to push the lens to move in the Z-axis direction, but also works with the translation coil to generate thrust for translation of the X and Y axes. To reduce magnetic interference, due to space constraints, the size of the drive magnets on adjacent sides is usually reduced intuitively. Although the magnetic field interference is reduced, it also reduces the thrust (driving force), especially the translational thrust. The decrease in thrust is equivalent to reducing performance and increasing power consumption. The demand for sufficient driving force for miniaturized OIS lens modules is constant. Therefore, how to implement multi-lens camera modules 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 that can easily reduce magnetic interference without complicated structural design. Regardless of the traditional VCM AF or the lens module with OIS, the characteristic configuration of the magnetic field of the lens drive device itself is used to reduce the mutual interference between the magnetic fields, and reduce the unstable offset caused by the magnetic field interference between adjacent lenses, and improve the The stability of the lens module is adjusted, and the distance between adjacent lens modules is shortened to ensure the effective configuration of the internal space of the mobile phone and obtain better magnetic interference performance under the same power consumption.

In order to achieve the above object, the present invention provides a multi-lens camera module, which at least includes a first lens module and a second lens module arranged adjacently, between the first lens module and the second lens module There is a space between them, and the distance from the center of this space is called the adjacent surface. Both sides of the adjacent surface are respectively the first lens module and the second lens module; the first lens module and the second lens module respectively define a mutually perpendicular X axis, a Y axis and A Z-axis direction; the first lens module and the second lens module each have a camera optical axis parallel to the Z-axis; wherein, the first lens module and the second lens module respectively include There are: an upper cover, which includes a perforation; a frame, which is located in the upper cover and forms an accommodating space inside; a lens, which is arranged in the accommodating space inside the frame; at least one elastic element, Combined with the frame body, the at least one elastic element can be used to limit the displacement of the lens in the accommodating space along the direction of the imaging optical axis; a first driving system includes: a driving coil, and a plurality of driving magnets; wherein , the driving coil is combined on the periphery of the lens, and corresponds to the complex driving magnets combined in the frame to provide thrust in the Z-axis direction; wherein, the complex driving magnets include: two main driving magnets corresponding to each other A magnet and at least one secondary driving magnet; and, the secondary driving magnet is provided on the adjacent surfaces of the first lens module and the second lens module.

In one embodiment: the first lens module and the second lens module are respectively provided with at least one secondary driving magnet at the adjacent surface; each of the secondary driving magnets has a central axes each separated by a distance; Each of the auxiliary drive magnets located at the adjacent surface is staggered along the adjacent surface and across the adjacent surface; the projection of each of the auxiliary drive magnets located at the adjacent surface to the adjacent surface , wherein the projection of at least one pair of driving magnets on the adjacent surface has a configuration in which opposite sides have different side lengths.

In one embodiment, at least one of the first lens module and the second lens module further includes a second drive system, the second drive system includes: a circuit board, at least two translational coils are arranged on Corresponding to the plurality of driving magnets on the circuit board, it provides the thrust of the translation axis; the plurality of suspension wires have the characteristics of elastic suspension and conductivity respectively, and these suspension wires are respectively connected to the frame body and the lens. , the elastic element is elastically suspended directly above the circuit board; and an external circuit is combined under the frame and electrically connected to the circuit board, and the external circuit further includes an image sensor components; wherein, the lens further includes: a lens group, and a lens carrying seat; wherein, the lens group is arranged at the center of the lens carrying seat, and is displaced synchronously with the lens carrying seat.

In one 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 on The lens is outside and aligned with one of the sensors on the external circuit.

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

In one embodiment, for the auxiliary driving magnets located on the adjacent surfaces and having different lengths of opposite sides, the two ends of the line segment of the opposite side are extended by at least one oblique line segment, arc line segment or right angle line segment connect.

In one embodiment, for the auxiliary driving magnets located on the adjacent surfaces and having different lengths of opposite sides, the lengths of the line segments of the opposite sides differ by more than 20%.

In one embodiment, the plurality of auxiliary driving magnets are partially overlapped in a way of being staggered along the adjacent surface and across the adjacent surface.

In one embodiment, the magnetization directions of the plurality of secondary driving magnets located on two 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 from the The main driving magnet is at a predetermined width.

In one embodiment, the auxiliary magnet is disposed beyond the inner side of the auxiliary driving magnet on the adjacent surface, and the auxiliary magnet and the main driving magnet have the same polarity facing the lens side.

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

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

In one embodiment, the first lens module and the second lens module located on both sides of the adjacent surface have different distances between the main driving magnet and the adjacent surface.

In one embodiment, the auxiliary driving magnet on the adjacent surface and the projection of the main driving magnet on the adjacent surface are partially overlapped.

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

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

In one embodiment, the projection of the main drive magnet included in one of the first lens module and the second lens module to the X-Z plane includes a line segment with unequal lengths of opposite sides, according to The optical axis is divided into two, and the length difference of the unequal line segments of the opposite sides included in the main driving magnet is greater than 10%.

In one embodiment, the plurality of driving magnets further includes at least one auxiliary magnet disposed in the frame body; the auxiliary magnet is disposed on the adjacent side of the symmetrical center line of the main driving magnet.

In one embodiment, the projections of the central axes of the auxiliary magnets and auxiliary driving magnets on both sides of the adjacent surface parallel to the imaging optical axis may overlap on the adjacent surface.

In one embodiment, the position corresponding to the auxiliary magnet that belongs to the same lens and is farther away from the adjacent surface and the adjacent surface can be the same as setting the auxiliary magnet on the frame, or setting the auxiliary magnet on the lens and sensor Correspondingly or for a gap, no auxiliary magnet is provided.

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

100‧‧‧adjacent faces

12‧‧‧Corner drive magnet

11,121,122,21,22,653,912,913,922,923,924‧‧‧Auxiliary drive magnet

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

231‧‧‧Extension

2201, 1213, 1223, 1213a‧‧‧upper side

2202, 1214, 1224, 1214 a‧‧‧below

2203, 2204, 1212, 1222‧‧‧slanted line

1211, 1221, 2200‧‧‧central axis

1215, 1225, 2205, 2206‧‧‧arc segment

1216, 1226, 2207, 2208‧‧‧Rectangular segment

24, 553, 932‧‧‧Auxiliary magnet

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

31,41,51,61‧‧‧top cover

311,411‧‧‧Perforation

32,42,52,62‧‧‧frame

321,421,521,621‧‧‧positioning sheet

33,43,53,63‧‧‧lens

331,431,531,631‧‧‧Lens holder

34,44,341,441,54,541,64,641‧‧‧elastic elements

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‧‧‧Translation coil

37,47,67‧‧‧Suspension wire

38,48,68‧‧‧connection plate

39‧‧‧Sensor magnet

301,401‧‧‧External circuit

302,402‧‧‧Image sensor

303,304,305,403,404‧‧‧sensor

300,400,611‧‧‧Bottom plate

425‧‧‧Gap space

426‧‧‧Shock-absorbing medium

80‧‧‧Shock-absorbing medium coating equipment

81‧‧‧probe

Figure 1 is an example of a multi-lens camera module developed by the applicant in this case, which reveals the basic structure of a multi-lens camera module adjacent to the OIS driving device.

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

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

Figure 3D and Figure 3E are three-dimensional schematic diagrams of the embodiment of the drive magnet arrangement of two adjacent lens modules in the first preferred embodiment of the multi-lens camera module of the present invention as shown in Figure 3A respectively , and a schematic diagram of the projection of the driving magnet on the adjacent surface.

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

Figure 4B is the second preferred embodiment of the multi-lens driving module of the present invention as shown in Figure 4A and the embodiment shown in Figure 1, both of which are obtained by testing the optical axis deviation caused by magnetic interference The schematic diagram of the curve.

Figure 5 is the second preferred embodiment of the multi-lens drive module of the present invention as shown in Figure 4A and the first preferred embodiment shown in Figure 3E, both of which perform optical axis deviation due to magnetic interference Schematic diagram of the curve obtained from the test.

FIG. 6 is a three-dimensional schematic diagram of an embodiment of the arrangement of driving magnets of two adjacent lens modules of the third preferred embodiment of the multi-lens camera module of the present invention.

FIG. 7 is a three-dimensional schematic diagram of an embodiment of the arrangement of driving magnets of two adjacent lens modules of the second preferred embodiment of the multi-lens camera module of the present invention as shown in FIG. 4A.

Figures 8A to 8F are respectively several different embodiments of the multi-lens camera module of the present invention, in which the secondary driving magnets of the adjacent two lens modules are located on the adjacent surfaces and are projected on the adjacent surfaces. of schematic diagram.

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 of which is a lens module with a corner magnet.

FIG. 9B is a schematic diagram of the A-A angle of view of the projection of the plurality of secondary driving magnets located on the adjacent surface to the adjacent surface of the fourth preferred embodiment of the multi-lens camera module shown in FIG. 9A.

Figure 9C to Figure 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 magnetite 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.

Figure 10B is the fifth preferred embodiment of the multi-lens drive module of the present invention as shown in Figure 10A. It has auxiliary magnets and no auxiliary magnets in the second lens module, and the optical axis is caused by magnetic interference between the two. Schematic diagram of the curve obtained from the offset test.

FIG. 11 is a perspective schematic diagram of a sixth preferred embodiment of the multi-lens camera module of the present invention, an embodiment of the arrangement of driving magnets of two adjacent lens modules.

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

FIG. 13A to FIG. 13D are the eighth to eleventh preferred embodiments of the multi-lens camera module of the present invention, respectively, the three-dimensional schematic diagrams of the configuration embodiments of the driving magnets of two adjacent lens modules.

Figure 14 is the twelfth preferred embodiment of the multi-lens camera module of the present invention, the embodiment of the embodiment in which the secondary driving magnets of the adjacent two lens modules located on the adjacent surface side are projected on the adjacent surface schematic diagram.

Fig. 15A to Fig. 15C are schematic top views of several embodiments of the multi-lens camera module of the present invention, in which the number of lens modules may be greater than 2 and configured in different ways.

FIG. 16A and FIG. 16B are respectively the 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 the arrangement of the driving magnets.

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

FIG. 18A, FIG. 18B and FIG. 18C are respectively 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.

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

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

The lens module structure with OIS optical image stabilization system is nothing more than a four-corner drive magnet or a four-side drive magnet set in a fixed frame and suspended on the base by a suspension wire. For a multi-lens camera module, two adjacent lens modules are often relatively 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 deviation and optical axis tilt.

Figure 1 is an example of a multi-lens camera module developed by the applicant in this case, which reveals the basic structure of a multi-lens camera module adjacent to the OIS drive device, and there is a The interval, the distance from the center of this interval is called the adjacent surface 100 . Using the space between the adjacent surfaces 100 of the two adjacent lens modules 10 and 20, the second and third sub-drive magnets 121, 122 and 22, which are relatively small in size, are configured to provide X and Y axis magnetic field feedback and Optical axis direction (that is, Z-axis direction) thrust and translation thrust and improve magnetic field interference. Two pairs of drive magnets (second and third secondary drive magnets 121, 122) belonging to the first lens module 10 that are smaller in volume are arranged on one side of the adjacent surface 100 of the adjacent two lens modules 10, 20; On the other side of the surface 100 is at least one secondary driving magnet 22 with a smaller volume belonging to the second lens module 20 . The second and third auxiliary drive magnets 121, 122, 22 located on both sides of the adjacent surface 100 are arranged in a staggered manner; that is, the plural auxiliary drive magnets located on both sides of the adjacent surface 100 and belonging to the two lens modules 10, 20 respectively The projections of 121 , 122 , 22 on the adjacent surface 100 do not completely overlap or even do not overlap at all.

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

The OIS lens drive device shares the drive magnet on the basis of traditional VCM AF. In addition to working with the Z-axis drive coil on the lens to move the lens in the Z-axis direction, it can also work with the translation coil set on the lower circuit board. The translational thrust generated on the X and Y axes, Pushing the lens creates a panning motion. The OIS lens driving device suspends the VCM AF through a plurality of suspension wires, that is, the frame, elastic components, multiple 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 magnetic fields of the driving magnets in two adjacent OIS lens modules causes the VCM AF part in the lens module to shift in the elastic range of the suspension wire, which affects the offset of the optical axis of the camera.

Regardless of VCM AF or including OIS lens modules with interlaced and complex magnetic fields, the total magnetic field is the sum of the characteristics of the driving magnet; generally speaking, the characteristics of the driving magnet will be related to the size, distance, position, magnetic pole and magnetic force of the driving magnet. And so on. On the one hand, it is desired to increase the size of the driving magnet so that it interacts with the coil to generate a greater electromagnetic force, and on the other hand, it is desirable to reduce the size of the driving magnet so that the magnetic field interference is as small as possible. If the original space planning of the lens module is not changed, according to the current limited internal space of the mobile phone, the original configuration structure of the driving magnet in the lens module is difficult to break through the current magnetic interference and achieve a balanced design with low magnetic field interference and strong thrust.

Under the optimal magnetic field balance planning, the multi-lens camera module of the present invention uses the balance mode of the interaction force between the magnets to reduce the magnetic field interference. Whether it is AF or multi-lens camera module with OIS, the total magnetic field of the driving device can be balanced. In addition, the multi-lens camera module with OIS reduces the amount of magnetic field interference between adjacent lens modules under the original design and planning mechanism distance, and stabilizes the problem of large variations in optical axis displacement due to the short distance of the driving magnet, and further obtains Better thrust for lower power requirements.

In order to achieve the above-mentioned purpose, the multi-lens camera module of the present invention is characterized in that it includes at least two lens modules adjacently arranged, and there is a gap between the adjacent two lens modules, and the distance center of this gap is called Adjacent faces. Each of the lens modules has a plurality of driving magnets, and defines mutually perpendicular X, Y, and Z axis directions; wherein, a camera optical axis of the lens module is parallel to the Z axis, and the adjacent surface is connected to the Y is parallel to the plane defined by the Z axis. The projection diagram of the plurality of driving magnets located on both sides of the adjacent surface projected to the adjacent surface includes 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 formed by joining oblique, arc, or straight line segments. The plurality of sub-drive magnets each have a central axis parallel to the imaging optical axis. There is a distance W between the central axes viewed from the X-axis direction. The plurality of sub-drive magnets are alternately arranged along the Y-axis direction with adjacent surfaces interposed therebetween.

Referring to Fig. 3 A, Fig. 3 B and Fig. 3 C, they are respectively multi-lens camera modules of the present invention. The three-dimensional exploded view, combined top view and 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 with at least one adjacent surface 100 . There is a gap between the adjacent first lens module 10 and the second lens module 20 , and the distance center of the gap is called the adjacent surface 100 . The first lens module 10 and the second lens module 20 respectively have a camera optical axis, and define an X axis, a Y axis and a Z axis direction perpendicular to each other, wherein the Z axis and the camera optical axis parallel, and the adjacent plane 100 is parallel to both the planes defined by the Y-axis and the Z-axis. In this embodiment, the first lens module 10 and the second lens module 20 respectively include at least a part of the following elements: an upper cover 31, 41, a frame 32, 42, a The lenses 33, 43 are arranged on a lens bearing seat 331, 431, at least one elastic element (including upper elastic elements 34, 44 and lower elastic elements 341, 441), a first drive system 35, 45, a second drive system 36, 46, A plurality of suspension wires 37 , 47 , a connecting plate 38 , 48 , and a sensor magnet 39 .

The upper cover 31 , 41 includes a through hole 311 , 411 . The frames 32, 42 are located inside the upper covers 31, 41 and form an accommodating space therein. The lens 33, 43 together with the lens holder 331, 431 is arranged in the accommodating space inside the frame body 32, 42. The at least one elastic element (including the upper elastic element 34,44 and the lower elastic element 341,441) is combined on the upper and lower end surfaces of the frame body 32,42, and is matched with the positioning pieces 321,421 located on the lower end surface of the frame body 32,42 The lower elastic elements 341, 441 are clamped and positioned on the frame bodies 32, 42 for restricting the displacement of the lenses 33, 43 (together with the lens holders 331, 431) in the accommodating space along the direction of the imaging optical axis.

The first driving system 35,45 includes: at least one driving coil 351,451, a set of corresponding two main driving magnets 13,23 and at least two secondary driving magnets 11,121,122,21,22. Wherein, the drive coils 351, 451 are combined with the outer periphery of the lens bearing seat 331, 431 of the lens 33, 43, and combined with the plurality of drive magnets (including the main drive magnets 13, 23 and the auxiliary drive magnets) in the frame body 32, 42 11, 121, 122, 21, 22) correspondingly, a driving force in the Z-axis direction is provided as a driving device for AF.

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

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

In this embodiment, the at least two secondary driving magnets include: secondary driving magnets 11 , 121 , 122 , 21 , 22 . The first lens module 10 is adjacent to the second lens module 20 and has the adjacent surface 100 between the two lens modules 10 , 20 . The two drive magnets 121, 122 of the first lens module 10 adjacent to the adjacent surface 100 and the secondary drive magnet 22 of the second lens module 20 adjacent to the adjacent surface 100, the three are mutually along the double lens The driving devices are arranged in a staggered manner across adjacent surfaces 100 in the Y-axis direction. That is, although the three sub-drive magnets 121, 122, 22 are separately arranged on both sides of the adjacent surface 100, the projection of the three sub-drive magnets 121, 122, 22 to the adjacent surface 100, The three of them are interlaced with each other along the Y-axis direction through the adjacent surface 100 in the order of sub-drive magnets 121, sub-drive magnets 22, and sub-drive magnets 122, so that the three sub-drive magnets 121, 122, and 22 are projected onto The projections of adjacent faces 100 do not completely overlap. The driving coil 351, 451 is one of a ring-type monopolar coil, a ring-type bipolar coil, a flat-plate bipolar coil, or a printed circuit board (PCB) with a coil circuit.

Please refer to Fig. 3 D and Fig. 3 E, which are respectively the driving magnet configuration embodiments of the two adjacent lens modules in the first preferred embodiment of the multi-lens camera module of the present invention as shown in Fig. 3 A A three-dimensional schematic diagram and a schematic diagram of the projection of the driving magnet on the adjacent surface. As shown in FIG. 3E, the second lens module 20 is provided with at least one secondary drive magnet 22 on the adjacent surface 100, and its projection onto the adjacent surface 100 includes at least one set of opposite sides (that is, the upper side 2201 The length of the side in the Y-axis direction is not equal to that of the lower side 2202). The configuration on both sides of the auxiliary driving magnet 22 is formed by extending and connecting the end points of the line segments of the group of opposite sides (upper side 2201 and lower side 2202) in the Y-axis direction with at least one oblique line segment 2203, 2204 (hereinafter also referred to as the hypotenuse), In this way, the secondary driving magnet 22 can be shaped like a trapezoid with a higher central part and shorter two ends in the Y-axis direction. In this embodiment, the length difference between the two opposite sides (upper side 2201 and 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 sub-drive magnets 121, 122, 22 each have a central axis 1211, 1221, 2200 parallel to the imaging optical axis (Z-axis). The projection on the adjacent surface 100 is viewed from the X direction. The sub-drive magnet in the middle There is a distance W between the central axis 2200 of 22 and the central axes 1211 , 1221 of the other two drive magnets 121 , 122 . A plurality of sub-drive magnets 121, 122, 22 are arranged staggeredly along the adjacent lens module in the direction of the Y-axis across the adjacent surface 100, and a plurality of staggered sub-drive magnets 121, 122, 22 are arranged on the adjacent surface The projections on 100 may or may not partially overlap each other, but certainly not completely. 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, 2202 of the auxiliary driving magnet 22 are different in length, and the upper side 2201 is shorter in length 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 maintains the thrust in the Z-axis direction. Moreover, since the oblique notch formed by the hypotenuse (that is, the oblique line segment 2203, 2204) is set aside from the length space on both sides, the magnetic field of the auxiliary driving magnet 22 is reduced, thereby reducing the contact between the auxiliary driving magnet 22 and the first lens module 10. The force interference between the auxiliary driving magnets 121 and 122 at the end of the adjacent surface 100; the balance of the interaction force is achieved by adjusting the ratio of the side length difference between 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 improve the translation driving force, and the elongated and extended design of the sub-drive magnet 22 is close to the magnet length of the translation coil 462 (that is, the length of the lower side 2202 ) and its connection with the translation coil 462. The effective length between them is, for example but not limited to: approaching a triangular shape to obtain better translational driving force and achieve lower power consumption performance.

Basically, a magnet in an external magnetic field will experience a torque exerted by the external field, causing the magnet's magnetic moment to be in the same direction as the external field. The magnetic field between the opposite magnetic poles of the two magnets is in the same direction as the magnetic moment of the magnet, and the magnetic field is relatively strong. The magnetic field between the driving magnets is complex, especially near the near field of the magnets. In this case, the force between the magnetic fields is used to distribute the energy of the magnetic field, so as to obtain a better balanced force and reduce the mutual interference between the magnetic fields.

Please refer to FIG. 4A , which is a schematic diagram of the configuration of the driving magnets of the second preferred embodiment of the multi-lens driving module of the present invention. Based on the above description, under the condition that the opposite sides of the two pairs of drive magnets 121, 122 adjacent to the adjacent surface 100 of the first lens module 10 respectively have a slanted segment (also called a hypotenuse) 1212, 1222 configuration conditions, by corresponding The adjacent second lens module 20 is adjacent to the opposite sides (upper side 2201 and lower side 2202) of the sub-drive magnet 22 adjacent to the adjacent surface 100. 2201 and lower side 2202) are not equal in length Long configuration, the effect of its 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 unequal-length opposite sides (upper side 2201 and lower side 2202 ) is greater than 20% of the line segment a, and the two ends of the line segment are extended and connected by oblique line segments 2203 and 2204 to form missing corners. And, in this embodiment, except that the length difference between the line segments a and a1 of the upper side 2201 and the lower side 2202 of the auxiliary driving magnet 22 is greater than 20%, the height of the left and right sides of the auxiliary driving magnet 22 is the same as the The height difference of the highest point in the center of the auxiliary driving magnet 22 is also greater than 20% of the height of the sides on both sides.

Please refer to Figure 4B, which is the second preferred embodiment of the multi-lens driving module of the present invention as shown in Figure 4A and the embodiment shown in Figure 1, both of which perform optical axis deviation due to magnetic interference Schematic diagram of the curve obtained from the test. It can be seen from the test curve in FIG. 4B that the relationship between the optical axis displacement of the auxiliary drive magnet 22 configuration and the distance between the two lens modules 10 and 20 is shown in FIG. 4A. Taking the optical axis displacement of 0um as the state without any interference, it can be seen that the magnet configuration of the curve E1 (the opposite sides of the auxiliary drive magnet 22 as shown in Fig. The opposite sides of the drive magnet 22 have the configuration of the upper and lower sides as shown in FIG. 1 , the degree of displacement of the optical axis affected by the interference of the magnetic field. Curve E1 (opposite sides with unequal lengths) obviously has less displacement of the optical axis due to magnetic field interference than curve E2 (opposite sides of the sub-drive magnet 22 have the same length), that is to say, the upper side 2201 of the sub-drive magnet 22 of the curve E1 (opposite sides with unequal lengths) The reduction of the side length keeps the volume near the central axis 2200 and effectively reduces the force of the magnetic field between the two ends and the auxiliary driving magnets 121 and 122 of the adjacent first lens module 10, so that the force generated by the overlapping ends of the projections on both sides can be reduced. The gradual descent is configured by the oblique line segments 2203, 2204. Observed from the 1.2mm distance between adjacent lens modules in Figure 4B, the configuration shown in Figure 4A, the displacement of the optical axis affected by the magnetic field is reduced from 81 μm to 26 μm, and the optical axis displacement is reduced by 55 μm, which means that there is a 4-fold improvement. Therefore, if at least one sub-drive magnet configuration with a notch is included among the plurality of sub-drive magnets at the adjacent surface ends of the drive devices of two adjacent lens modules, the magnetic interference can be reduced; and, the notch configuration It further reduces the sensitivity of the distance adjustment between two adjacent lens modules, and the oblique segment configuration of the missing corner makes the height of the auxiliary drive magnet 22 near the central axis 2200 higher, which can maintain enough energy to maintain the upward thrust; and the auxiliary drive The side length of the lower side 2202 of the magnet 22 is longer and has more energy to maintain translational thrust.

Please refer to Figure 5, which is the second preferred embodiment of the multi-lens drive module of the present invention as shown in Figure 4A and the first preferred embodiment shown in Figure 3E, both of which perform optical Schematic diagram of the curve obtained from the test of the axis deviation. It can be understood from the graph in Figure 5, as shown in Figure 4A The configuration of the opposite sides of the sub-drive magnets 121 and 122 as shown, and the configuration of the opposite sides of the sub-drive magnets 121 and 122 as shown in FIG. Graph of the distance between groups 10, 20. In the curve D1 in FIG. 5, the magnetic field configuration of the test condition is as shown in FIG. 4A, and the two ends of the sub-drive magnet 22 of the second lens module 20 have hypotenuses (oblique line segments 2203, 2204) configuration Under the same conditions, by changing the opposite sides (upper and lower sides 1213, 1214, 1223, 1224) of the sub-drive magnets 121 and 122 of the first lens module 10, the line segment lengths b1 and b are equal in length (as shown in Figure 3E ) or two configurations of unequal length (as shown in Figure 4A), to understand the configuration of the opposite sides (upper and lower sides 1213, 1214, 1223, 1224) of the auxiliary drive magnets 121, 122 for the total magnetic field force The influence of magnetic interference with the multi-lens camera module. The opposite sides (upper and lower sides 1213, 1214, 1223, 1224) of the sub-drive magnets 121, 122 differ in length by more than 20% of the lengths of the line segments b1 and b, and the oblique line segments 1212, 1222 connect the opposite sides to form missing corners. It can be seen from Fig. 5 that the magnet configuration of curve D1 (the opposite sides of the auxiliary drive magnets 121, 122 as shown in Fig. Equal length) The degree of displacement of its optical axis affected by magnetic field interference. The curve D1 (the opposite sides of the auxiliary drive magnets 121 and 122 are of unequal length) is obviously smaller than the curve D2 (the opposite sides are of the same length). Observed at a distance of 1.2 μm, the displacement of the optical axis affected by magnetic field interference is reduced by 1.7 times from 44 μm to 26 μm, that is to say, as shown in the curve D1, by the secondary driving magnets 121 and 122 of the first lens module 10 1213 The reduction of the length of 1223 can reduce the active area and effectively reduce the interaction force of the magnetic field between the two ends of the secondary driving magnet 22 of the second lens module 20 adjacent to it.

Please refer to FIG. 6 , which is a three-dimensional schematic diagram of an arrangement embodiment of driving magnets of two adjacent lens modules of the third preferred embodiment of the multi-lens camera module of the present invention. As shown in FIG. 6 , the magnetic interference between the two adjacent lens modules 10 , 20 mainly comes from the secondary driving magnets 121 , 122 , 22 on both sides of the adjacent surface 100 . A plurality of auxiliary driving magnets 121 , 122 , 22 are arranged in a staggered manner along the Y-axis direction across the adjacent surface 100 , and their central axes are separated by a distance W when viewed from the X-axis direction. The difference between this embodiment and the first preferred embodiment is that the sub-drive magnet 22 of the second lens module 20 is in the shape of a long column, while the sub-drive magnets 121, 122 of the first lens module 10 include At least one cutaway configuration. The projection of each of the auxiliary driving magnets 121, 122 to the adjacent surface 100 will have at least one opposite side (upper and lower sides 1213, 1214, 1223, 1224) with unequal side lengths; and, each of the auxiliary driving magnets 121, The oblique configuration of 122 is formed by connecting the two ends of the line segments of the opposite sides (upper and lower sides 1213, 1214, 1223, 1224) with at least one oblique line segment 1212, 1222, and the opposite sides (upper and lower sides 1213, 1214, 1223, 1224) The difference in the lengths of the line segments at the bottom 1213, 1214, 1223, 1224) is greater than 20%. Utilize the disposition of different lengths of the upper and lower sides 1213, 1214, 1223, 1224 of the sub-drive magnets 121, 122 at the ends of the adjacent surface 100 of the first lens module 10, and the configuration connected by an oblique line segment 1212, 1222, can Reduce magnetic energy and reduce the force between magnetic fields. The length of 1213, 1223 on the auxiliary driving magnet 121, 122 is relatively short, and the direction area close to the auxiliary driving magnet 22 is set aside, and a cutaway is formed by connecting with a diagonal line segment 1212, 1222, so that the area near the auxiliary driving magnet 22 area is reduced. Reduce the magnetic field interference between them; at the same time, the auxiliary drive magnets 121, 122 retain a higher height in the area close to the main drive magnet 13 on the outside, so that they can interact with the drive coil to maintain the thrust strength in the Z-axis direction; in addition, the auxiliary drive magnets 121 , 122 lower sides 1214, 1224 retain a longer length and can increase the translational driving force in the X-Y axis direction produced by the action of the translational coil.

Please refer to FIG. 7, which is a three-dimensional schematic diagram of the second preferred embodiment of the multi-lens camera module of the present invention as shown in FIG. The second preferred embodiment shown in Figure 7 differs from the first preferred embodiment in that the projections of the auxiliary drive magnets 121, 122, and 22 of the two lens modules 10, 20 projected onto the adjacent surfaces 100 are respectively Each has at least one opposite side (upper and lower sides 1213, 1214, 1223, 1224, 2201, 2202) with unequal side lengths, and the beveled configurations of the auxiliary driving magnets 121, 122 and 22 are respectively defined by their opposite sides ( The two ends of the line segments of upper and lower sides 1213, 1214, 1223, 1224, 2201, 2202) are formed by connecting at least one oblique line segment 1212, 1222, 2203, 2204, and the opposite sides (upper and lower sides 1213, 1214, 1223, 1224, 2201, 2202) the difference in line segment length is greater than 20%. Utilize the arrangement that the lengths of the upper and lower sides of the auxiliary driving magnets 121, 122, 22 are different, the overlapping ends of the auxiliary driving magnets 121, 122 and the auxiliary driving magnets 22 projected on the adjacent surface 100 are respectively separated by a diagonal line segment 1212, 1222, 2203, The cutaway configuration of the 2204 connection reduces the force between the magnetic fields of the auxiliary drive magnets 121, 122, and 22. The upper line segments 1213 , 1223 , 2201 are relatively short in length, which can reduce the overlapping areas of the secondary driving magnets 121 , 122 , 22 , reduce the force, and improve the magnetic field interference between the adjacent lens modules 10 , 20 . The lower sides 1214, 1224, 2202 of the auxiliary drive magnets 121, 122, 22 have a longer length, which can increase the driving force generated by the translation coil effect on the lower circuit board. The magnetic interference of the multi-lens camera module of this embodiment is significantly improved under the same power consumption.

Please refer to Fig. 8 A to Fig. 8 F, which are respectively different projections of the auxiliary drive magnets on the adjacent surfaces of the two adjacent lens modules in the multi-lens camera module of the present invention. Schematic diagram of an embodiment aspect. In different aspects of these embodiments, the The projections of the auxiliary drive magnets 121, 122, 22 to adjacent surfaces will include at least one auxiliary drive magnet 121, 122, 22 with at least one opposite side (upper and lower sides 1213, 1214, 1223, 1224, 2201, 2202 ) whose side lengths are unequal, and at least one oblique line segment, arc segment 1215, 1225, 2205, 2206 or right angle line segment 1216, 1226, 2207, 2208 to connect the upper and lower sides 1213, 1214, 1223, The two ends of 1224, 2201, 2202, and then constitute the sub-drive magnets 121, 122, 22 with notch configuration, and the line segment length difference of its opposite sides (upper and lower sides 1213, 1214, 1223, 1224, 2201, 2202) Greater than 20%.

Please refer to Fig. 9A and Fig. 9B; among them, Fig. 9A is a schematic top view of a fourth preferred embodiment of the multi-lens camera module of the present invention, and the first lens module is a lens module with a corner magnet . FIG. 9B is a schematic diagram of the A-A angle of view of the projection of the plurality of secondary driving magnets located on the adjacent surface to the adjacent surface of the fourth preferred embodiment of the multi-lens camera module shown in FIG. 9A. As shown in FIG. 9A and FIG. 9B, the notched corner structure of the sub-drive magnet with at least one opposite side (upper and lower sides) with unequal lengths disclosed by the present invention can also be applied to a corner-type drive magnet 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 on the adjacent surface 100, that is to say, it is located on the adjacent surface The magnetization directions of at least one secondary driving magnet 12 , 22 on both sides of the 100 and belonging to two different lens modules 10 a , 20 are not parallel to each other. Referring to Fig. 9 B, the length a of the upper side 2201 of the auxiliary driving magnet 22 is relatively short, and the side lengths of the two ends close to the direction of the corner type driving magnet 12 are kept aside, and the length of the region close to the central axis is reserved, so that the center has a larger height, which can keep the same The driving coil in the Z-axis direction acts on a large area to ensure the thrust in the Z-axis direction. The length a1 of the lower side 2202 of the auxiliary drive magnet 22 is longer, which improves the driving force generated by the action of the translation coil on the circuit board below. That is to say, reducing the active area of the two ends of the auxiliary driving magnet 22 in the Y-axis direction effectively reduces the magnetic field force between the opposite ends of the magnet and the adjacent corner-shaped driving magnet 12 .

Please refer to Fig. 9C to Fig. 9G, respectively, in the multi-lens camera module of the present invention, the first lens module is a lens module with a corner magnet, and the adjacent two lens modules are located on the adjacent side. Schematic diagrams of several different embodiments in which the secondary driving magnet is projected on the adjacent surface. The difference between the embodiment shown in Fig. 9 C and Fig. 9 D and Fig. 9 B is that, in Fig. 9 C and Fig. 9 D, the secondary driving magnet 22 at the adjacent surface of the second lens module 20 is a pair A long rectangle whose sides (upper and lower sides 2201, 2202) have the same length. The two sides of the first lens module 10a located at the adjacent surface are corner-type driving magnets 12, which utilize the upper and lower sides of the surface facing the auxiliary driving magnet 22. The lengths of the lower sides 1213a and 1214a are not the same, and a cutaway structure is made in the direction adjacent to the second auxiliary driving magnet 22 to reduce the force between the magnetic fields. That is to say, the side length b of the upper side 1213a of the corner-type driving magnet 12 facing the side of the auxiliary driving magnet 22 on both sides of the adjacent surface of the first lens module 10a is relatively short, canceling the approach to the second auxiliary driving magnet 22 direction area, and keep the outer area close to the main drive magnet, and avoid the position where the magnetic field is larger in the boundary area between the drive magnet 12 and 22; at the same time, the reserved length b1 under the corner drive magnet 12 is longer to maintain its connection with the translation coil The impetus generated by the action.

The difference between the embodiments shown in Fig. 9E, Fig. 9F, Fig. 9G and Fig. 9B is that in Fig. 9E, Fig. 9F and Fig. 9G, the second lens module 20 on the adjacent surface The second sub-drive magnet 22 and the two corner-type drive magnets 12 of the first lens module 10a, the three of them all utilize the configurations with different lengths of opposite sides (upper and lower sides), respectively positioned on the second sub-drive magnet 22 and the corners. At least one notch is configured near the end of the type driving magnet 12 to reduce the force interference between the magnetic fields. That is to say, the length b of the upper side of the corner-type drive magnet 12 towards the second secondary drive magnet 22 is relatively short, reducing the volume of the direction area close to the second secondary drive magnet 22, and retaining the volume of the area near the main drive magnet 23 on the outside . Simultaneously, the length a of the upper side of the second secondary driving magnet 22 is relatively short, and the side lengths at both ends close to the direction of the corner-shaped driving magnet 12 are kept aside, and the length of the area close to the central axis is reserved, so as to avoid the position where the magnetic field in the boundary area of the driving magnet 12 and 22 is relatively large . The lower side of the corner-type drive magnet 12 has a relatively long reserved length b1 to maintain the driving force generated by the action of the translation coil. In other words, no matter whether the auxiliary driving magnet is elongated or corner-shaped 12 or 22, its projection to the adjacent surface will have at least one opposite side (upper and lower sides) with unequal lengths, and at least one oblique line segment, The cutaway 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 the multi-lens camera module of the present invention. The two adjacent lens modules include a first lens module 10 and a second lens module 20 . On the adjacent surfaces of the two lens modules 10, 20, a plurality of secondary drive magnets 121, 122, 22 are arranged in a staggered manner along the Y-axis direction with adjacent surfaces separated, and each has a center parallel to the imaging optical axis. axis. There is a distance W (not shown in this figure) between the central axes of the plurality of auxiliary driving magnets 121, 122, 22 viewed from the X-axis direction, and the projection of the plurality of auxiliary driving magnets 121, 122 and the auxiliary driving magnet 22 on the X-axis direction can 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, 122 of the first lens module 10, so that the magnetic flux can pass. The fifth preferred embodiment has larger For the second lens module 20 at a distance of W1, between the auxiliary driving magnet 22 and the main driving magnet 23 on its adjacent surface, that is, an additional auxiliary magnet 24 with a smaller volume is added at a distance of a width W2 beside the main driving magnet 23. The fixed frame (frame body) is close to the direction of the adjacent surface, and the position is arranged beyond the inner edge of the auxiliary driving magnet 22 . The interaction force between two adjacent lens modules 10 and 20 is adjusted by the configuration of the auxiliary magnet 24 . The same polarities of the main driving magnets 13, 23, the auxiliary driving magnets 11, 121, 122, 21, 22 and the auxiliary magnets 24 of the adjacent two lens modules 10, 20 face the respective lens sides. When the distance between the two lens modules 10 and 20 remains constant, part of the magnetic field of the main driving magnet 23 will pass through the space of width W2, reducing the force interference with the auxiliary magnet 24, which is beneficial to product assembly. There is a distance W4 between the auxiliary magnet 24 and the auxiliary driving magnet 22 , which can be equal to the distance W1 between the main driving magnet 23 and the auxiliary driving magnet 22 , or other preferred distances. Since the auxiliary magnet 24 of the second lens module 20 is close to the first lens module 10, the magnetic force is stronger, and the magnetic field lines of the auxiliary magnet 24 pass through the W4 space and the plurality of driving magnets 13, 121 of the first lens module 10 , 122 magnetic field, a force is generated between the two to make it balance with the force between the auxiliary driving magnets 121, 122, 22 on the adjacent surface. Wherein, the interaction force generated between the auxiliary magnet 24 and the main driving magnets 13 , 23 and the auxiliary driving magnets 121 , 122 , 22 is determined by the magnetic interference orientation between the magnetic fields of the two lens modules 10 , 20 .

The invention reduces the mutual interference between the magnetic fields by increasing the balance force of the auxiliary magnet and the disposition of the cutaway 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. It has auxiliary magnets and no auxiliary magnets in the second lens module, and the two are due to magnetic interference. Schematic diagram of the curve obtained from the test that caused the optical axis to shift. In FIG. 10B , curve C is a curve without auxiliary magnets, and curve C1 is a curve with at least one auxiliary magnet 24 added in the space next to the main drive magnet 23 at the adjacent surface end of the second lens module 20 . The main driving magnets 13, 23 of the adjacent two lens modules 10, 20, the auxiliary driving magnets 11, 121, 122, 21, 22 and the auxiliary magnets 24 are facing the respective lens sides with the same polarity. The optical axis displacement of 0 (um) is the undisturbed state. The optical axis displacement results are observed from the distance range of the two lens modules 10 and 20: the curve C1 obtained after adding the auxiliary magnet 24 is indeed relatively small in magnetic field interference. The displacement of the curve C1 at the distance of 1.2mm between the two adjacent lens modules 10 and 20 is 0 (um); the displacement of the optical axis of the curve C is -39 (um). The two lens modules 10 and 20 are arranged in the near-field position with a relatively short distance, and the value of the optical axis displacement driven by the action force changes significantly in the positive direction. Therefore, without changing the size structure of the driving device of the adjacent lens module Next, add at least one auxiliary magnet 24 to increase the force, which helps to balance the force distribution of the magnetic field The magnetic interference between two adjacent lens modules 10 and 20 is reduced.

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 for acting with the drive coil, nor affect the thrust balance of the original design; in other words, the thrust used to push the lens carrier to move It is mainly generated by the interaction between the main drive magnet and the drive coil, and does not need to rely on the thrust generated by the interaction between the auxiliary magnet 24 and the drive coil, so the design does not need to consider the impact of the auxiliary magnet 24 on the aforementioned thrust for driving the lens holder to move The amount of contribution. The auxiliary magnet 24 has the characteristics of unlimited dimensions and tolerances, and does not need to be equal in height or thickness to the main driving magnet 23 . Under the limitation of the manufacturing process of the size of the auxiliary magnet 24, 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 equal to other drive magnets 11, 121, 122, 13, 21, 22, and 23, the configuration of the auxiliary magnet 24 is a design flexibility and a simple structure for reducing magnetic interference that is not limited by the precise manufacturing process of the module. The smaller auxiliary magnets 24 are configured to reduce the magnetic interference between the two adjacent lens modules 10, 20, so that the multiple auxiliary drive magnets 121, 122, 22 can increase the volume or magnetic energy product to increase the translational thrust in the X-axis direction, thereby reducing the Lens module power consumption.

Please refer to FIG. 11 , which is a perspective schematic diagram of a sixth preferred embodiment of the multi-lens camera module of the present invention, and an embodiment of the arrangement of driving magnets of two adjacent lens modules. The difference between the sixth preferred embodiment of the present invention shown in Figure 11 and the fifth preferred embodiment shown in Figure 10A is that the auxiliary magnet 24 in the sixth preferred embodiment of the present invention shown in Figure 11 is a Multipolar magnets. The driving magnets of the two adjacent lens modules 10 and 20 have the same polarity facing the lens side. The magnetization direction of the auxiliary magnet 24 is the same as that of the main drive magnet 23 , and is perpendicular to the optical axis toward the lens side. The auxiliary magnet 24 is adjacent to the main driving magnet 23 with opposite polarity, 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 field force between 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 is relatively close, and the distance between the auxiliary driving magnets 121, 122, and 22 is relatively strong. The force of the magnetic field between them generates a balance force, thereby reducing the amount of magnetic interference generated when two adjacent lens modules 10 and 20 are adjacent to each other. The force generated between the multi-pole auxiliary magnet 24 and the main driving magnets 13 , 23 and the auxiliary driving magnets 121 , 122 , 22 determines the magnetic interference orientation between the magnetic fields of the two lens modules 10 , 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, the two adjacent lens modules 10, 20 drive the magnets with the same polarity towards their respective lenses, which differs from the fifth preferred embodiment shown in Figure 10A in that Therefore, the auxiliary magnet 24 on the second lens module 20 is designed with a notch. In order to make the two adjacent lens modules 10, 20 have more magnetic field force distribution and use in the 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 magnet. The inner surface of the driving magnet 22 and the plurality of driving magnets 13 , 121 , 122 closer to the first lens module 10 make the force between them stronger. Utilize the space of the suspension wire on the second lens module 20, wherein the auxiliary magnet 24 leaves a gap to allow the suspension wire to pass through, effectively utilize the structural space of the OIS lens module, obtain more magnetic force, and balance the magnetic field interference between the magnetic fields. The magnetization direction of the auxiliary magnet 24 is the same as that of the main drive magnet 23 , and the same polarity faces the lens. The magnetic force between the auxiliary magnet 24 of the second lens module 20 and the auxiliary driving magnets 121, 122, 22 is balanced, thereby improving the magnetic interference.

Please refer to FIG. 13A to FIG. 13D, which are the eighth to eleventh preferred embodiments of the multi-lens camera module of the present invention, and the three-dimensional schematic diagrams of the driving magnet configuration embodiments of the two adjacent lens modules. . In these eighth to eleventh preferred embodiments, the same polarity of the plurality of driving magnets of each lens module is directed toward the lens side. The difference between the eighth to eleventh preferred embodiments shown in Figure 13A to Figure 13D and the fifth preferred embodiment shown in Figure 10A is that the main drive of the second lens module 20 is used The extension of the magnet 23 to the direction of the adjacent surface is designed as an extra protruding extension 231, so that the magnetic field of the main driving magnet 23 is at a fixed distance between the lens modules. Because the distance of the extension 231 is closer to the first lens module 10, Generate a strong magnetic force. Furthermore, due to the original cutaway configuration of the unequal lengths of the upper and lower sides of the auxiliary drive magnet 22, the space is opened to make its magnetic lines of force more easily pass through to the first lens module 10, and the auxiliary drive magnets 121, 122, 22 on both sides of the adjacent surface. The resulting balance of forces achieves reduced magnetic interference. The projected image of the main driving magnet 23 onto the X-Z surface includes at least one opposite side (upper side and lower side) with unequal lengths. Line segments with unequal lengths on opposite sides (upper and lower sides) divide it into two according to the optical axis, and the length difference of line segments with unequal lengths on opposite sides (upper and lower sides) in the projection diagram is greater than 10%. The volume of the extended part can be smaller or thinner, so that a slow and gradually changing magnetic field force can be generated between them, as shown in Figure 13A for long strip extension, Figure 13B for gradual extension, or Figure 13C The thickness gradient extension of two line segments of unequal length projected on the X-Y plane can also be an extension of the size of a main drive magnet 23 (equivalent extension as shown in FIG. 13D).

Please refer to Figure 14, which is the twelfth preferred embodiment of the multi-lens camera module of the present invention, the embodiment in which two adjacent lens modules are located on the side of the adjacent surface and the auxiliary drive magnets are projected on the adjacent surface Schematic diagram of the pattern. As shown in Figure 14, the secondary drive magnets 121, 122, 22 The lengths of at least one opposite side (upper and lower) of the projected figure projected to the adjacent surface are not the same, and the auxiliary driving magnets 121, 122, 22 of each opposite side (upper and lower) with different lengths can be formed by It is composed of several small magnets 12191, 12192, 12291, 12292, 2291, 2292 which are independent and have a simple configuration (such as a square shape). By combining several small magnets 12191, 12192, 12291, 12292, 2291, 2292 of simple configuration to form secondary driving magnets 121, 122, 22 with opposite sides (upper and lower sides) of different lengths, it is not only easy Production and production can reduce the production loss of asymmetrical shapes, and are also conducive 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, in which the number of lens modules can be more than 2 and configured in different ways. As shown in Figure 15A to Figure 15C, the number of lens modules of the multi-lens camera module of the present invention is not limited to 2, and it can also be composed of 3, 4, 5 or more A multi-lens camera module formed by arranging and combining lens modules 91, 92, 94, 95, 96, 97 with the same structure or different structures.

In the multi-lens camera module described in the present invention, the implementation of the driving device is whether it is composed of a plurality of lens modules with OIS adjacent to each other, or a multi-AF lens module adjacent to each other, 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 in the present invention; and whether the structure is spring type (Spring Type) or ball type (Ball Type) Type) lens modules are all within the scope of the present invention.

In the foregoing embodiments of the present invention, as shown in Figure 10A, an auxiliary magnet is added at a predetermined width away from the main drive magnet on the adjacent side as shown in Figure 10A, and as shown in Figure 13A to Figure 13D, the main drive magnet faces the opposite direction. Several embodiments extending in the direction of the adjacent surface are configured by configuring the optimal distance from 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. Since the closer the distance between the magnets, the greater the interaction force, there is an acting force between the auxiliary driving magnets on both sides of the adjacent surface, and the main driving magnet and the multiple driving magnets of the lens module on the other side of the adjacent surface also have an acting force; If the position of the main driving magnet is extended toward the adjacent surface, the inner surface of the secondary driving magnet that exceeds the adjacent surface will get a stronger interaction force; as long as there is a sufficient distance W1 in the path, it is enough to obtain the main driving magnet ( or auxiliary magnets) and the multiple driving magnets of the lens module on the other side of the adjacent side are used to balance the interaction force and reduce the magnetic interference between the multi-lens camera modules.

Please refer to Figure 16A and Figure 16B for an embodiment of the description of the above-mentioned action force, which are respectively the thirteenth preferred embodiment of the multi-lens camera module of the present invention. The three-dimensional exploded view and the top view schematic diagram of the drive magnet configuration. The thirteenth preferred embodiment shown in Fig. 16 A and Fig. 16 B is especially aimed at at least one first lens module 50 with AF function and at least one second lens module with both OIS and AF functions. The multi-lens camera module composed of group 60. There is a gap between the adjacent first lens module 50 (with AF only) and the second lens module 60 (with both OIS and AF), and the distance center of this gap is called the adjacent surface 100 .

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

The upper cover 51, 61 includes a perforation. The frames 52, 62 are located inside the upper covers 51, 61 and form an accommodating space therein. The lens 53,63 together with the lens holder 531,631 is arranged in the accommodating space inside the frame body 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 on the upper and lower end surfaces of the frame body 52,62 and the lens bearing seat 531,631, and matched The positioning pieces 521, 621 located on the lower end surfaces of the frames 52, 62 clamp and position the lower elastic elements 541, 641 on the frames 52, 62, and are used to restrict the lenses 53, 63 (together with the lens holders 531, 631) in the accommodating space The displacement along the direction of the imaging optical axis.

The first driving system 55,65 includes: at least one driving coil 551,651, and a set of corresponding two main driving magnets 552,652. Wherein, the drive coils 551,651 are arranged on the periphery of the lens mounts 531,631 of the lenses 53,63, and correspond to the plurality of drive magnets (including the main drive magnets 552,652) combined in the frames 52,62, providing Z The driving force in the axial direction is used as the driving device of AF. The driving coil 551, 651 is a ring-type unipolar coil, but it can also be a ring-type bipolar coil, a flat-plate bipolar coil, or a printed circuit board (PCB) with a coil circuit. It is divided under the first lens module 50 and the second lens module 60 An external circuit 301, 401 is provided respectively, and an image sensing element 302, 402 is respectively provided in each external circuit 301, 401, and is used for receiving the lens 53, 64 that gathers from the first, second lens module 50, 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 the OIS function, there is no need to set the auxiliary drive magnet; Two auxiliary magnets 553 are used to reduce magnetic interference. In contrast, the second lens module 60 has at least two secondary driving magnets 653 because it has the OIS function, and the volume of the secondary driving magnets 653 is smaller than or equal to the main driving magnet 652 . Wherein, the first lens module 50 is provided with the auxiliary magnet 553 on the side adjacent to the adjacent surface 100 , and the second lens module 60 is provided with the auxiliary driving magnet 653 on the side adjacent to the adjacent surface 100 .

The second driving system 66 of the second lens module 60 at least includes: a circuit board 661 and at least two translational coils 662, 663, 664, 665. The at least two translational coils 662, 663, 664, 665 are arranged on the circuit board 661 and correspond to the two main driving magnets 652 and the at least two secondary driving magnets 653 of the second lens module 60 respectively, providing the translational axes of the X-axis and the Y-axis. The thrust to act as the driving device of the 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 under the frame body 62 , on which the image sensor 402 and other related electronic components are disposed. A plurality of suspension wires 67 have the characteristics of elastic suspension and conduction respectively, and these suspension wires 67 are respectively the frame body 62, the lens carrying base 631 (together with the lens 63), the elastic elements 64, 641 and other elements together elastically. Suspended 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 FIG. 16A and FIG. 16B, the first lens module 50 includes at least one smaller auxiliary magnet 553 disposed on the side adjacent to the surface 100, and the other side of the adjacent surface 100 It is at least one driving magnet 653 of the second lens module 60 . The plurality of driving magnets (including the main driving magnets 552 and 652 and the auxiliary driving magnet 653 ) and the auxiliary driving magnet 553 are unipolar magnetic field directions facing the respective lens 53 sides.

The respective main driving magnets 552 and 652 of the two adjacent lens modules 50 and 60 are correspondingly arranged on the frame bodies 52 and 62 on both sides of the lens on the vertically adjacent surface 100, and the auxiliary magnet 553 is arranged on the symmetrical center line of the main driving magnet 552 The purpose of setting the auxiliary magnet 553 on the side of the adjacent surface 100 is to provide the configuration and application of the balanced magnetic interference force, not to provide the thrust for driving the lens; drive magnet 552 and The interaction between the driving coil 551 does not depend on the thrust generated by the interaction between the auxiliary magnet 553 and the driving coil 551, so the design does not need to consider the contribution of the auxiliary magnet 553 to the aforementioned thrust for moving the lens holder 531. The main driving magnets 552 on both sides of the first lens module 50 correspond to the driving coils 551 on the lens to generate electromagnetic force to push the lens 53 to move along the optical axis for AF driving. The second lens module 60 has a plurality of driving magnets (including the main driving magnet 652 and the auxiliary driving magnet 653) which are arranged around the outer frame body 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, but also It can also interact with the translation coils 662, 663, 664, and 665 to generate a driving force in the translation direction to push the lens to move in the X and Y directions and provide the OIS function.

Viewed from the direction of arrangement perpendicular to the adjacent surface 100, the projections of 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, each of which includes a center parallel to the imaging optical axis. Axial projections on adjacent faces 100 may be overlapping. A force is obtained by using a smaller auxiliary magnet 553 on one side of the adjacent surface 100 and at least one auxiliary driving magnet 653 on the other side. The length L1 of the auxiliary magnet 553 is smaller than the arrangement range L2 of at least one auxiliary driving magnet 653 on one side of the adjacent surface 100; Distance W3 to main drive magnet 652 . The length range of the main drive magnet 552 of the first lens module 50 with the auxiliary magnet 553 is configured to exceed or equal to the inner surface of the auxiliary magnet 533 close to 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 projections 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 among the magnets 552, 553, 652, and 653.

In the first lens module 50, the position corresponding to the auxiliary magnet 553 that belongs to the same lens and is located farther away from the adjacent surface 100 can be the same as setting the auxiliary magnet 553 on the frame, or setting the auxiliary magnet 533 on the lens. Corresponding to the sensor, or for a gap, no auxiliary magnet is provided.

As shown in Figure 17A, Figure 17B, and Figure 17C, they are the fourteenth, fifteenth and sixteenth preferred embodiments of the multi-lens camera module of the present invention, which have three adjacent lenses A schematic top view of an embodiment of the drive magnet configuration of the module.

In the fourteenth preferred embodiment shown in Figure 17A, the three lens modules 91, 92 arranged in a row include the first lens module 91 located in the center and the first lens module respectively located at the center. There is an adjacent surface 100 between 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 both sides thereof. For each lens module 91, 92 of the multi-lens camera module of the present invention, each of the secondary driving magnets 912, 922, 923 located at the adjacent surface 100 is along the adjacent surface 100 and separated by the adjacent The surface 100 is arranged in a staggered manner, and the length setting range L1 of the driving magnet 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 . There is a distance W1 between the two ends of the auxiliary driving magnet 912 of the first lens module 91 and the main driving magnet 911 . The main driving magnet 911 of the first lens module 91 is longer than the main driving magnet 921 of the second lens module 92 . Moreover, the length setting range L2 of the two driving magnets 922 and 923 of the second lens module 92 is also greater than the length of the main driving magnet 921 of the second lens module 92 . On the side of the second lens module 92 that is farther away from the adjacent surface 100, another sub-drive magnet 924 is also provided, and its volume or length can be roughly equal to the volume or length sum of the two sub-drive magnets 922, 923, or roughly equal to the main body. The volume or length of the driving magnet 921.

In this embodiment, the arrangement length of the main driving magnet 911 of the first lens module 91 is increased, and the length range of the arrangement of the secondary driving magnets 922 and 923 of the second lens module 92 on the side adjacent to the surface 100 is increased to obtain multi-lens photography. 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 auxiliary driving magnet 912 on the side of the adjacent surface 100, and the main driving magnet 911 of the first lens module 91 The distance W5 to the adjacent surface 100 in the X-axis direction is smaller than the distance W6 from the main drive magnet 921 of the adjacent second lens module 92 to the adjacent surface 100 in the X-axis direction; from the projection on the X-Z plane projection diagram, The left and right ends of the main driving magnet 911 of the first lens module 91 partially overlap with the auxiliary driving magnet 912 that belongs to the first lens module 91 and is disposed on the side of the adjacent surface 100 .

The Y-axis length range L2 of the two driving magnets 922 and 923 on the adjacent surface 100 side of the second lens module 92 is greater than the Y-axis distance L3 of the two corresponding inner surfaces of the main driving magnet 921 . That is to say, 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 surface of the main driving magnet 921 close to the lens, and the projection diagram of the two driving magnets 922 and 923 projected onto the adjacent surface 100 can be seen from the main The driving magnet 921 partially overlaps with the auxiliary driving magnets 922 and 923 . Observing from the direction in which the multi-lens camera module is vertically arranged to the adjacent surfaces, each of the secondary driving magnets 912, 922, 923 is projected on the adjacent surfaces to partially overlap each other. The force balance configuration among them obtains the low magnetic interference performance of the multi-lens camera module.

In the fifteenth preferred embodiment shown in Figure 17B, the three lens modules 91, 92 arranged in a row include a second lens module 92 located in the center and a second lens module 92 located on the left and right sides of the second lens module 92 respectively. There is an adjacent surface 100 between 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 thereof. For each lens module 91, 92 of the multi-lens camera module of the present invention, each of the secondary driving magnets 912, 922, 923 located at the adjacent surface 100 is along the adjacent surface 100 and separated by the adjacent The surface 100 is arranged in a staggered manner, and the length setting range L1 of the driving magnet 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 . There is a distance W1 between the two ends of the auxiliary driving magnet 912 of the first lens module 91 and the main driving magnet 911 . The main driving magnet 911 of the first lens module 91 is longer than the main driving magnet 921 of the second lens module 92 . Moreover, the length setting range L2 of the two driving magnets 922 and 923 of the second lens module 92 is also greater than the length of the main driving magnet 921 of the second lens module 92 . Another auxiliary driving magnet 913 is provided on the side of the first lens module 91 farther away from the adjacent surface 100 , and its volume or length may be equal to or greater than that of the auxiliary driving magnet 912 .

In this embodiment, the arrangement length of the main driving magnet 911 of the first lens module 91 is increased, and the length range of the arrangement of the secondary driving magnets 922 and 923 of the second lens module 92 on the side adjacent to the surface 100 is increased to obtain multi-lens photography. 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 auxiliary driving magnet 912 on the side of the adjacent surface 100, and the main driving magnet 911 of the first lens module 91 The distance W5 to the adjacent surface 100 in the X-axis direction is smaller than the distance W6 from the main drive magnet 921 of the adjacent second lens module 92 to the adjacent surface 100 in the X-axis direction; from the projection on the X-Z plane projection diagram, Two ends of the main driving magnet 921 of the first lens module 91 partially overlap with the auxiliary driving magnet 912 and another auxiliary driving magnet 913 respectively belonging to the first lens module 91 on the side of the adjacent surface 100 .

The Y-axis length range L2 of the two driving magnets 922 and 923 on the adjacent surface 100 side of the second lens module 92 is greater than the Y-axis distance L3 of the two corresponding inner surfaces of the main driving magnet 921 . That is to say, 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 surface of the main driving magnet 921 close to the lens, and the projection diagram of the two driving magnets 922 and 923 projected onto the adjacent surface 100 can be seen from the main The driving magnet 921 partially overlaps with the auxiliary driving magnets 922 and 923 . Observed from the direction in which the multi-lens camera module is arranged vertically to the adjacent surface, each pair of drive magnets The stones 912, 922, 923 projected on the adjacent surfaces partially overlap each other, and the performance of the multi-lens camera module with low magnetic interference is obtained by using the force balance configuration among the driving magnets 911, 912, 921, 922, 923.

In the sixteenth preferred embodiment shown in Figure 17C, the multi-lens camera module includes a first lens module 91, a second lens module 92 and a third lens module 93 with different structures. Formed in a row. There is an adjacent surface 100 between 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 thereof. Among them, the first lens module 91 and the second lens module 92 are lens modules with both AF and OIS functions, so they include main driving magnets 911, 921 and auxiliary driving magnets 912, 913, 922, 923, 924 Configuration. The third lens module 93 only has the AF function but does not have the OIS function, so it does not have the sub-drive magnet, but has the main drive magnet 931 that can provide the AF drive force, and the auxiliary magnet that is not provided for the purpose of providing the drive force. 932.

In the sixteenth preferred embodiment, the length setting range L1 of the sub-drive magnet 912 of the first lens module 91 in the Y-axis direction is smaller than that of the second lens module 92 on the other side of the adjacent surface 100 The length setting range L2 of the two driving magnets 922, 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 the adjacent surface 100 and the other The length setting range L2a of the auxiliary drive magnet 924 of the second lens module 92 disposed on the Y-axis direction.

The two ends of the secondary drive magnet 912 of the first lens module 91 and the main drive magnet 911 have a distance W1 in the Y-axis direction, and the two ends of the auxiliary drive magnet 932 of the third lens module 93 are in the Y-axis direction with the main drive magnet 931 Then there is another interval W1a. The distance W5 between the main driving magnet 911 of the first lens module 91 and the adjacent surface 100 in the X-axis direction is smaller than the distance W6 between the main driving magnet 921 of the adjacent second lens module 92 and the adjacent surface 100 in the X-axis direction . Moreover, the distance W5a between the main driving magnet 931 of the third lens module 93 and the adjacent surface 100 in the X-axis direction is also smaller than that of the adjacent second lens module 92 from the main driving magnet 921 to the adjacent surface 100 in the X-axis direction. The distance W6. The difference between the sixteenth preferred embodiment shown in Figure 17C and the embodiments shown in Figure 17A and Figure 17B is that two of the adjacent surfaces 100 in the sixteenth preferred embodiment The side is that the auxiliary magnet 932 of the third lens module 93 corresponds to the sub-drive magnet 924 of the second lens module 92 , and the centerlines of their parallel optical axes overlap on the adjacent surface 100 . 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 the three-dimensional exploded view, the side view of some components, and the E-E sectional view of the seventeenth preferred embodiment of the multi-lens camera module of the present invention.

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

The upper cover 31 , 41 includes a through hole 311 , 411 . The frames 32, 42 are located inside the upper covers 31, 41 and form an accommodating space therein. The lens 33, 43 together with the lens holder 331, 431 is arranged in the accommodating space inside the frame body 32, 42. The at least one elastic element (including the upper elastic element 34,44 and the lower elastic element 341,441) is combined on the upper and lower end surfaces of the frame body 32,42 for limiting the lens 33,43 (together with the lens holder 331,431) Displacement along the direction of the imaging optical axis in the accommodating space.

The first driving system includes: at least one driving coil 351,451, a set of corresponding two main driving magnets 13,23 and at least two auxiliary driving magnets 11,121,122,21,22. Wherein, the driving coils 351, 451 are combined with the outer periphery of the lens bearing seat 331, 431 of the lens 33, 43, and combined with the plurality of driving magnets (including the main driving magnets 13, 23 and the auxiliary driving magnets 13, 23 and auxiliary driving magnets) in the frame body 32, 42. Correspondingly, the moving magnets 11, 121, 122, 21, 22) provide a driving force in the direction of the Z axis as a driving device for AF.

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

The connecting boards 38, 48 are electrically connected to the circuit boards 361, 461 and an external circuit 301, 401 respectively. The external circuit 301, 401 is located under the frame body 32, 42, on which an image sensing element 302, 402 is disposed. A plurality of suspension wires 37, 47 have the characteristics of elastic suspension and conduction respectively, and these suspension wires respectively connect the frame body 32, 42, the lens holder 331, 431 (together with the lens 33, 43), the elastic element 34, 341 , 44,441 are elastically suspended directly above the circuit board 361,461. The bottom boards 300, 400 are disposed under 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 boards 300, 400.

In the seventeenth preferred embodiment, one or more position sensors such as Hall elements (Hall) can be selectively added on the circuit boards 361, 461 or the connection boards 38, 48 to detect the lens carrying Seats 331, 431 and the lens 33, 43 on it are relative to the position of the frame body 32, 42 in the direction of the optical axis (Z axis), or/and the detection frame body 32, 42 and the lens 33, 43 therein are relative to the circuit board The positions of 361 and 461 in the horizontal direction (X-axis and Y-axis) provide the closed-loop control function of AF or/and OIS.

In the seventeenth preferred embodiment, the at least two auxiliary driving magnets include: auxiliary driving magnets 11 , 121 , 122 , 21 , and 22 . The first lens module 10 is adjacent to the second lens module 20 and has the adjacent surface 100 between the two lens modules 10 , 20 . The two drive magnets 121, 122 of the first lens module 10 adjacent to the adjacent surface 100 and the secondary drive magnet 22 of the second lens module 20 adjacent to the adjacent surface 100, the three are mutually along the double lens The driving devices are arranged in a staggered manner across adjacent surfaces 100 in the Y-axis direction. That is, although the three sub-drive magnets 121, 122, 22 are separately arranged on both sides of the adjacent surface 100, the projection of the three sub-drive magnets 121, 122, 22 to the adjacent surface 100, The three are interlaced with each other in the order of the sub-drive magnet 121, the sub-drive magnet 22, and the sub-drive magnet 122 through the adjacent surface 100 along the Y-axis direction, so that The projections of the three auxiliary driving magnets 121 , 122 , 22 onto the adjacent surface 100 are incompletely overlapped.

In the seventeenth preferred embodiment, the structures of the sub-drive magnets 121, 122, 22 of the two lens modules 10, 20 are similar to those of the second preferred embodiment shown in Fig. 4A and Fig. 7 . That is, the respective projections of the secondary drive magnets 121, 122, 22 of the two lens modules 10, 20 onto the adjacent surface 100 have at least one opposite side (upper and lower sides) with unequal lengths. The secondary drive magnet 121 The oblique configurations of , 122 and 22 are formed by connecting the two ends of the line segments of the opposite sides (upper and lower sides) with at least one oblique line segment, and the difference in length of the line segments of the opposite sides (upper and lower sides) is greater than 20% . Utilizing the arrangement of the upper and lower sides of the sub-drive magnets 121, 122, and 22 having different lengths, the overlapping ends of the sub-drive magnets 121, 122 and the sub-drive magnet 22 projected on the adjacent surface 100 are each connected by a diagonal line segment. , reduce the force between the magnetic fields of the auxiliary driving magnets 121, 122, and 22. The relative length of the upper line segment is relatively short, which can reduce the area of the overlapping area of the secondary drive magnets 121 , 122 , 22 , reduce the acting force, and further improve the magnetic field interference between the adjacent lens modules 10 , 20 . Auxiliary driving magnet 121, 122, 22 bottoms are longer in length, and can increase the driving force generated by the translational coil effect on the lower circuit board.

In the seventeenth preferred embodiment, the structure of the main driving magnet 23 of the second lens module 20 is similar to the structure 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 to the direction of the adjacent surface is designed to be an extra protruding elongated extension, so that the magnetic field of the main driving magnet 23 is at a fixed distance between the lens modules. Because the distance of the extension part is closer to the first lens module 10, a stronger magnetic force is generated. Furthermore, due to the original cutaway configuration of the unequal lengths of the upper and lower sides of the auxiliary drive magnet 22, the space is opened to make its magnetic lines of force more easily pass through to the first lens module 10, and the auxiliary drive magnets 121, 122, 22 on both sides of the adjacent surface. The resulting balance of forces achieves reduced magnetic interference. The projected image of the main driving magnet 23 onto the X-Z surface includes at least one opposite side (upper side and lower side) with unequal lengths. Line segments with unequal lengths on opposite sides (upper and lower sides) divide it into two according to the optical axis, and the length difference of line segments with unequal lengths on opposite sides (upper and lower sides) in the projection diagram is greater than 10%. The volume of the part extended by it can be smaller or thinner, so that a gentle and gradually changing magnetic field force can be generated therebetween.

In addition, as can be seen from FIG. 18A and FIG. 18C, 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 extra protruding elongated extension toward the adjacent surface 100, it will affect the suspension wire 47 that should be arranged at the corner of the frame body 42; therefore, The suspension on the upper and lower sides of the secondary drive magnet 22 located at the adjacent surface 100 The setting position of the suspension wire 47 (that is, the two suspension wires 47 on the left side of the second lens module 20 ) is not located at the corner, but slightly shifted towards the two ends of the secondary driving magnet 22 to avoid the two main driving magnets 23 Extra convex elongated extension. In other words, since the length of the sub-drive magnet 22 adjacent to the adjacent surface 100 on the left side of the second lens module 20 is relatively short, there is a space on both sides of the second lens module 20 for setting the suspension wire 47, so that the second lens module 20 The two suspension wires 47 adjacent to the adjacent surface 100 on the left side are not located at the corners. Therefore, the setting 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 secondary driving magnet 22, and are not located at the corners of the frame body 42. ; and the two suspension wires 47 on the side away from the adjacent surface 100 are located at the corners of the frame body 42), satisfying the extension structure design of the main drive magnet 23 so that the interaction force between the two lens modules 10 and 20 is balanced.

Please refer to Fig. 19A and Fig. 19B, respectively, in the seventeenth preferred embodiment of the multi-lens camera module of the present invention shown in Fig. 18A to 18C, the second lens module performs Side view schematic diagram and three-dimensional schematic diagram of dispensing process.

Due to the trend of miniaturization of the structure design of the lens drive device with optical stabilization system suitable for smartphones, the maximum width in the horizontal direction of the X-axis and Y-axis is usually only about 6-12mm, while in the direction of the Z-axis The maximum height on the lens is only between 2-5mm. Therefore, many miniaturized parts inside the lens driving device are not only small in size, but also have a smaller distance between the parts, resulting in a typical optical lens as shown in Figure 1a. It is very difficult for the lens driving device 10 of the stabilization system to apply a shock-absorbing medium (such as but not limited to damping soft glue).

In order to solve the above-mentioned difficulties, the multi-lens camera module of the present invention, especially on the frame body 42 of the first and second lens module (taking the second lens module 20 as an example), several additional lenses are provided on the upper surface of the frame body 42. The notch spaces 425 extending downward (along the Z-axis direction), the bottom of each notch space 425 is the point where the damping medium 426 is expected to be applied. From a view perpendicular to the optical axis, as shown in FIG. 18C, there is a relatively large distance between the driving magnets 21 and 23 of the second lens module 20 . The frame body 42 at least includes a penetrating notch space 425 , which is disposed corresponding to a relatively larger distance between adjacent driving magnets 21 , 23 . In this way, during the manufacturing process of the second lens module 20, the probe 81 of the shock-absorbing medium coating device 80 can easily penetrate these devices arranged on the frame body 42 from top to bottom (that is, along the Z-axis direction). The notch space 425, and the shock-absorbing medium 426 is applied at the bottom position of each notch space 425, so that a part of the shock-absorbing medium 426 contacts (joins) the frame The bottom surface of the body 42 and the other part are in contact with (connected to) the upper surface of the circuit board 461 . Moreover, the medium photocuring device (not shown in the figure) can also directly irradiate downwards from the top of the lens module 20 to dilute the fluid-like shock-absorbing medium 426 to achieve the purpose of thickening the shock-absorbing medium 426, so as to Provides shock absorption. Not only can it provide a single axial (Z-axis direction) operation, apply and cure the shock-absorbing medium 426 along the straight up and down parallel to the optical axis to save production man-hours, but also reduce the layout spacing between mass-produced disks to increase batches and improve the lens drive device The space structure is small, the light-incoming area of the photo-curing process is blocked, and the extended shock-absorbing medium is insufficiently cured, the curing time is long, and the control of power consumption characteristics is unstable.

However, the above-mentioned embodiments should not be used to limit the scope of application of the present invention. The scope of protection of the present invention should be based on the technical spirit defined in the content of the patent application of the present invention and the range included in equivalent changes. That is, all equivalent changes and modifications made according to the patent scope of the present invention will still not lose the gist of the present invention, nor depart from the spirit and scope of the present invention, so all should be regarded as further implementation status of the present invention.

10. 20‧‧‧lens module

100‧‧‧adjacent faces

11,121,122,21,22‧‧‧Auxiliary drive magnet

13. 23‧‧‧Main drive magnet

31,41‧‧‧top cover

311,411‧‧‧Perforation

32,42‧‧‧frame

321,421‧‧‧positioning sheet

33,43‧‧‧Lens

331,431‧‧‧Lens holder

34,44,341,441‧‧‧Elastic elements

35,45‧‧‧First drive system

351,451‧‧‧Drive coil

36,46‧‧‧Second drive system

361,461‧‧‧circuit board

362,363,364,365,462,463,464,465‧‧‧Translation coil

37,47‧‧‧Suspension wire

38,48‧‧‧Connection plate

39‧‧‧Sensor magnet

301,401‧‧‧External circuit

302,402‧‧‧Image sensor

303,304,305,403,404‧‧‧sensor

Claims (20)

A multi-lens camera module, at least comprising a first lens module and a second lens module adjacent to each other; there is a gap between the first lens module and the second lens module, the gap between The distance from the center is called the adjacent surface; the two sides of the adjacent surface are respectively the first lens module and the second lens module; the first lens module and the second lens module respectively define mutually perpendicular An X-axis, a Y-axis, and a Z-axis direction; the first lens module and the second lens module each have a camera optical axis parallel to the Z-axis; wherein, the first lens module and the second The two lens modules respectively include: a top cover; a frame, which is located in the top cover and forms an accommodating space inside; a lens, which is arranged in the accommodating space inside the frame; a first A driving system includes: a driving coil, and a plurality of driving magnets; wherein, the driving coil is combined with the periphery of the lens, and corresponds to the plurality of driving magnets combined in the frame, providing a drive along the Z-axis direction thrust; it is characterized in that, the plurality of drive magnets of the first lens module include two main drive magnets corresponding to each other; the plurality of drive magnets of the second lens module include: two main drive magnets corresponding to each other and At least one secondary driving magnet; the volume of the secondary driving magnet of the second lens module is smaller than the main driving magnet of the second lens module; and, the second lens module is provided with the adjacent surface The auxiliary driving magnet, and the first lens module is not provided with the main driving magnet at the adjacent surface; wherein: the plurality of driving magnets of the first lens module further includes at least one auxiliary driving magnet; and, the first lens module A lens module and the second lens module are respectively provided with at least one secondary driving magnet at the adjacent surface; each of the secondary driving magnets has a central axis parallel to the imaging optical axis, and each of the central axes There is a distance apart; each of the auxiliary driving magnets located at the adjacent surface is staggered along the adjacent surface and across the adjacent surface; each of the auxiliary driving magnets located at the adjacent surface is projected to the phase The projection of the adjacent surface, wherein the projection of at least one secondary driving magnet on the adjacent surface has a configuration in which the lengths of opposite sides are different. The multi-lens camera module as described in item 1 of the scope of the patent application, wherein at least one of the first lens module and the second lens module further includes a second drive system, and the second drive system It includes: a circuit board, at least two translational coils are arranged on the circuit board and correspond to the plurality of driving magnets, providing thrust in the translational axis; an elastic element, combined with the frame; a plurality of suspension wires, respectively with The characteristics of elastic suspension and conductivity, and the suspension wires are respectively elastically suspending the frame, the lens, and the elastic element directly above the circuit board; at least one sensor is arranged on a plurality of driving magnets The bottom is connected to the connection board; and an external circuit is combined under the frame and electrically connected to the circuit board, and the external circuit further includes an image sensing element; wherein, the lens further includes: a A lens group, and a lens carrying seat; wherein, the lens group is arranged at the center of the lens carrying seat, and is displaced synchronously with the lens carrying seat. The multi-lens camera module as described in item 2 of the scope of the patent application, 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 arranged outside the lens and aligned with one of the sensors on the external circuit. The multi-lens camera module as described in item 1 of the patent scope of the application, wherein the volume of the auxiliary drive magnet located at the adjacent surface is at least smaller than that belonging to the same lens module and located farther away from the adjacent surface and with the auxiliary The volume of another driving magnet corresponding to the driving magnet. The multi-lens camera module as described in item 1 of the patent scope of the application, wherein, for the secondary driving magnets located at the adjacent surfaces and having different lengths of opposite sides, the two ends of the line segment of the opposite sides are formed by at least A diagonal, arc, or right-angle segment to extend the connection. The multi-lens camera module as described in item 5 of the scope of the patent application, wherein, for the secondary drive magnets located on the adjacent surfaces and having different lengths of opposite sides, the difference in the length of the line segment of the opposite sides is greater than 20%. . The multi-lens camera module as described in item 1 of the scope of the patent application, wherein the plurality of auxiliary drive magnets are arranged in a staggered manner along the adjacent surfaces and partially overlap each other. In the multi-lens camera module as described in item 1 of the scope of the patent application, the magnetization directions of the plurality of secondary driving magnets located on both sides of the adjacent surface are not parallel to each other. The multi-lens camera module as described in item 1 of the scope of the patent application, wherein the plurality of drive magnets in at least one of the first lens module and the second lens module further includes at least one auxiliary magnet It is arranged in the frame body; the auxiliary magnet is arranged at the adjacent surface. The multi-lens camera module as described in item 9 of the scope of the patent application, wherein the auxiliary magnet is arranged between the auxiliary driving magnet and the main driving magnet, and is at a predetermined width away from the main driving magnet; the auxiliary magnet is The position is arranged beyond the inner side of the auxiliary driving magnet at the adjacent surface, and the auxiliary driving magnet and the main driving magnet have the same polarity facing the lens side. The multi-lens camera module as described in item 10 of the scope of the patent application, wherein the auxiliary magnet is a multi-pole magnet. The multi-lens camera module as described in claim 10 of the patent application, wherein the auxiliary magnet has a notch, and its magnetization direction is the same as that of the main driving magnet. The multi-lens camera module as described in item 1 of the scope of the patent application, wherein the first lens module and the second lens module located on both sides of the adjacent surface each contain the main driving magnet The distance between the adjacent faces is different. The multi-lens camera module as described in item 13 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 adjacent to the adjacent The ends of the faces are one of the following: sliver formations, height or thickness gradient formations. The multi-lens camera module as described in item 13 of the scope of the patent application, wherein the main driving magnet included in one of the first lens module and the second lens module is projected onto the X-Z plane The projection includes a line segment of unequal length on opposite sides, and the difference in length of the line segment of unequal length on opposite sides included in the main driving magnet is greater than 10%. The multi-lens camera module as described in item 13 of the scope of the patent application, wherein, the main driving magnet included in one of the first lens module and the second lens module is projected onto the X-Y plane The projection includes a line segment of unequal length on opposite sides, and the difference in length of the line segment of unequal length on opposite sides included in the main driving magnet is greater than 10%. For the multi-lens camera module described in item 13 of the scope of the patent application, the distance W5 between the main driving magnet of the first lens module and the adjacent surface in the X-axis direction is smaller than that of the adjacent second lens module The distance W6 between the main drive magnet and the adjacent surface in the X-axis direction; observed from the projection on the X-Z plane projection diagram, the end of the main drive magnet of the first lens module belongs to the first lens module A magnet disposed on the side of the adjacent surface partially overlaps. For the multi-lens camera module described in item 13 of the scope of the patent application, the second lens module is provided with two pairs of driving magnets on the adjacent surface; the positions of the two pairs of driving magnets are within the setting range in the Y-axis direction The main driving magnet beyond the second lens module is close to the inner surface of the lens, and it is observed from the projection diagram projected on the adjacent surface. The main driving magnet and the two auxiliary driving magnets of the second lens module are partially overlap. The multi-lens camera module as described in item 1 of the scope of the patent application, wherein the multi-lens camera module is one of the following: a plurality of lens modules with an optical stabilization system (OIS) are adjacently combined, A plurality of lens modules with auto focus (AF) are combined adjacently, or a lens module with AF and a lens module with OIS function are combined adjacently; and the first lens module and the second lens module It is one of the following: Spring Type lens module or Ball Type lens module. The multi-lens camera module as described in item 1 of the scope of the 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 along the direction of the imaging optical axis, and the notch A damping medium is applied to the bottom of the space.

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