Lens driving device, camera device and electronic equipment

Abstract

Provided are a lens driving device, a photographing device and an electronic device comprising a plurality of lens supporting bodies, which ensure that each lens supporting body moves smoothly. The lens driving device (14) comprises a first mover (16a) of a first lens supporting body (20a) with the Z direction as the optical axis direction, a second mover (16b) of a second lens supporting body (20b) arranged in parallel with the first mover (16a), a stator (18) comprising a frame (22) surrounding the first mover (16a) and the second mover (16b), and a stator (18) for positioning at least one of the first lens supporting body (20a) and the second lens supporting body (20b) relative to the frame (22). A Z support device (16a, 46b) supported and freely movable in the Z direction, the Z support device (46a, 46b) comprising a Z support portion (48a, 48b) arranged on a stator (18), and a Z guide portion (50a, 50b) arranged on at least one of a first mover (16a) and a second mover (16b), the Z support portion (48a, 48b) extending in the Z direction and contacting at least two points of the Z guide portion (50a, 50b) on a cross section in the XY direction.

Description

[Technical field]

[0001] The invention relates to a lens driving device, a photographing device and an electronic device. [Background technology]

[0002] A small camera is mounted on an electronic device such as a mobile phone or a smart phone. As shown in Patent Document 1 (U.S. Patent Application Publication No. 2018 / 0100986), a widely known small camera of this type is a lens driving device that arranges two or more lenses in parallel and moves them individually. [Summary of the invention]

[0003] [Technical Problems to be Solved by the Invention]

[0004] In Patent Document 1, there are two lens support bodies supporting lenses and a frame arranged around the two lens support bodies, and a plurality of spheres are used to allow each lens support body to freely move toward the frame. In addition, a magnet is provided in the above-mentioned existing lens driving device, and a magnetic component is provided opposite to the magnet, so that the sphere is sandwiched between the lens support body and the frame by the attraction between the magnet and the magnetic component.

[0005] However, there is a problem. If a force greater than the attraction is generated between the magnet and the magnetic component due to falling, the lens support will leave the sphere. Then, when the lens support contacts the sphere again, the frame that makes point contact with the sphere is impacted, and the part in contact with the sphere may dent or crack, making it impossible to ensure smooth movement of the lens support. Moreover, if there are multiple lens supports, there is a high possibility that the support for the lens supports will be problematic.

[0006] The present invention aims to provide a lens driving device, a photographing device and an electronic device comprising a plurality of lens supporting bodies, which can eliminate the above-mentioned existing problems and ensure that each lens supporting body moves smoothly.

[0007]

Methods to solve the problem

[0008] In order to achieve the above-mentioned purpose, the first state of the lens driving device of the present invention has, in an XYZ orthogonal coordinate system, a first mover including a first lens support body for supporting a first lens body with the Z direction as the optical axis direction, a second mover including a second lens support body for supporting a second lens body arranged in parallel with the above-mentioned first mover with the above-mentioned Z direction as the optical axis direction, a stator including a frame surrounding the above-mentioned first mover and the above-mentioned second mover, and a Z supporting device supporting at least one of the above-mentioned first lens support body and the above-mentioned second lens support body relative to the above-mentioned frame so that it can move freely in the above-mentioned Z direction, the above-mentioned Z supporting device having a Z supporting portion arranged on the above-mentioned stator, and a Z guide portion arranged on at least one of the above-mentioned first mover and the above-mentioned second mover, the above-mentioned Z supporting portion extending in the above-mentioned Z direction and contacting at least two points of the above-mentioned Z guide portion on the cross section in the XY direction.

[0009] Furthermore, a second aspect of the lens driving device of the present invention comprises a first mover including a first lens support body for supporting a first lens body with the Z direction as an optical axis direction in an XYZ orthogonal coordinate system, a second mover including a second lens support body for supporting a second lens body arranged in parallel with the first mover with the Z direction as an optical axis direction, a stator including a frame surrounding the first mover and the second mover, and an XY support device for supporting at least one of the first lens support body and the second lens support body so as to be freely movable in the XY direction relative to the frame, the XY support device comprising an X support device provided on one side in the Z direction and a Y support device provided on the other side in the Z direction, the X support device comprising an X support portion and an X guide portion extending in the X direction, the X support portion being in contact with at least two points of the X guide portion in a cross section in the YZ direction, and the Y support device comprising a Y support portion and a Y guide portion extending in the Y direction, the Y support portion being in contact with at least two points of the Y guide portion in a cross section in the XZ direction.

[0010] [Effects of the invention]

[0011] According to the present invention, the Z support portion or the XY support portion extends in the Z direction or the XY direction, and on the cross section of the Z support portion in the XY direction, the YZ direction or the XZ direction, the Z support portion or the XY support portion contacts at least two points of the Z guide portion or the X or Y guide portion, so that the impact on at least one of the first lens support body and the second lens support body in the Z direction or the XY direction can be reduced, ensuring smooth movement of at least one of the first lens body and the second lens body.

Brief Description of the Drawings

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Figure 1

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Explanation of symbols

[0048] 10. Camera

[0049] 12a First lens

[0050] 12b Second lens

[0051] 14 Lens drive device

[0052] 16a First mover

[0053] 16b Second mover

[0054] 18 Stator

[0055] 20a First lens support body

[0056] 20b Second lens support body

[0057] 22 Frame

[0058] 24 abutment

[0059] 26 Lid

[0060] 28a First through hole

[0061] 28b Second through hole

[0062] 28c Third through hole

[0063] 28d Fourth through hole

[0064] 29 Bulkhead

[0065] 30a First lens mounting hole

[0066] 30b Second lens mounting hole

[0067] 32a First opening

[0068] 32b Second opening

[0069] 34a First flexible printed circuit board (first FPC)

[0070] 34b Second flexible printed circuit board (second FPC)

[0071] 36a First coil

[0072] 36b Second coil

[0073] 38a First position detector

[0074] 38b Second position detector

[0075] 40a First magnetic component

[0076] 40b Second magnetic component

[0077] 42a First magnet fixing groove

[0078] 44a First magnet

[0079] 44b Second magnet

[0080] 46a First Z support device

[0081] 46b Second Z support device

[0082] 48a First Z support portion

[0083] 48b Second Z support portion

[0084] 50a First Z guide portion

[0085] 50b Second Z guide

[0086] 52 bottom part

[0087] 54 Lower fixing part

[0088] 56 Upper fixing part

[0089] 58 Insertion hole

[0090] 60 First contact

[0091] 62 Second contact part

[0092] 64 protrusion

[0093] 66 Third contact

[0094] 68 Imaginary triangle

[0095] 70a First bite

[0096] 70b Second bite

[0097] 72a First bitten part

[0098] 72b Second bitten part

[0099] 74 ribs

[0100] 76 Adjustment device

[0101] 78 Guide Plate

[0102] 80 Push-on bearing parts

[0103] 82 Pushing parts

[0104] 84 First metal plate part

[0105] 86 Second metal sheet part

[0106] 88 threaded holes

[0107] 90 Push-on plate

[0108] 92 Push receiving part

[0109] 94 Tilt bearing part

[0110] 96 Tilt receiving part

[0111] 98 Support thread

[0112] 100a First intermediate

[0113] 100b Second intermediate

[0114] 102 Upper metal plate

[0115] 104 Lower metal plate

[0116] 106 Upper rib

[0117] 108, 110, 112 opening

[0118] 114 XY support device

[0119] 116 X support device

[0120] 118 Y support device

[0121] 120 X support

[0122] 122 X guide

[0123] 124 Y support

[0124] 126 Y guide

[0125] 128 Installation

[0126] 130 Mounting holes

[0127] 132 Installed part

[0128] 134 X drive magnet

[0129] 136 Y drive magnet

[0130] 138 X Magnetic Parts

[0131] 140 Z drive magnet

[0132] 142 terminal

[0133] 144 X driving coil

[0134] 146 Y drive coil

[0135] 148 Z drive coil

[0136] 150 X Position Detector

[0137] 152 Y position detector

[0138] 154 Z position detector [Specific implementation method]

[0139] Embodiments of the present invention will be described below with reference to the accompanying drawings.

[0140] Figures 1 to 8 A camera device 10 according to a first embodiment of the present invention is shown. The camera device 10 includes a plurality of lens bodies, for example, a first lens body 12a and a second lens body 12b, and a lens driving device 14 for driving the first lens body 12a and the second lens body 12b.

[0141] In the lens driving device 14, the first lens body 12a side and the second lens body 12b side have the same structure, so Figures 3 to 8 The second lens body 12b side is omitted.

[0142] The lens driving device 14 has a first mover 16a, a second mover 16b and a stator 18. The first mover 16a has a first lens support 20a that supports the first lens body 12a. And the second mover 16b has a second lens support 20b that supports the second lens body 12b. The stator 18 is provided with a frame 22 that surrounds the first mover 16a and the second mover 16b. The frame 22 is formed into a rectangular cube, and the first lens support 20a and the second lens support 20b are arranged side by side in the frame 22.

[0143] The frame 22 has a base 24 and a cover 26. The base 24 and the cover 26 are respectively made of resin or non-magnetic metal, and the cover 26 is embedded on the outer side of the base 24 to form the frame 22. In addition, the cover 26 is formed with a first through hole 28a and a second through hole 28b for allowing light to pass through or for inserting the first lens body 12a and the second lens body 12b. Similarly, a third through hole 28c and a fourth through hole 28d are formed on the base 24. On the base 24, a partition 29 is provided to separate the first lens support body 28a side from the second lens support body 20b side, but the partition 29 may not be required.

[0144] In this specification, the optical axis direction of the first lens body 12a and the second lens body 12b is referred to as the Z direction, the direction perpendicular to the Z direction or the optical axis direction is referred to as the X direction, and the direction perpendicular to the Z direction and the X direction is referred to as the Y direction. Furthermore, the object of the optical axis is referred to as the upper side, and the opposite side where an image sensor not shown in the figure is arranged is referred to as the lower side.

[0145] The first lens support body 20a and the second lens support body 20b are made of resin. A circular first lens mounting hole 30a and a circular second lens mounting hole 30b are formed on the inner side of the first lens support body 20a and the second lens support body 20b as viewed from the Z direction. The first lens body 12a and the second lens body 12b are mounted on the first lens mounting hole 30a and the second lens mounting hole 30b.

[0146] Furthermore, a first opening 32a and a second opening 32b are formed in parallel on one side of the long side direction of the base 24. A first flexible printed substrate (hereinafter referred to as the first FPC) 34a and a second flexible printed substrate (hereinafter referred to as the second FPC) 34b are arranged on the outside of the base 24 so as to surround the first opening 32a and the second opening 32b respectively. A first coil 36a and a second coil 36b are fixed in the center on the inner surface of the first FPC 34a and the second FPC 34b, and a first position detector 38a and a second position detector 38b are fixed on either side of the first coil 36a and the second coil 36b. The first position detector 38a and the second position detector 38b are respectively connected to the corresponding first FPC 34a and the second FPC 34b so that current can be supplied through the first FPC 34a and the second FPC 34b. The first coil 36a and the second coil 36b are composed of a straight portion and a semicircular portion, and current can flow in the +X direction and the -X direction. The first position detector 38a and the second position detector 38b are composed of a Hall element and a driving circuit for driving the Hall element. The first position detector 38a and the second position detector 38b detect the positions of the first lens support 20a and the second lens support 20b in the Z direction by the change of the magnetic flux density from the first magnet 44a and the second magnet 44b described later. The first coil 36a and the second coil 36b and the first position detector 38a and the second position detector 38b face the inner side of the base 24 through the first opening 32a and the second opening 32b.

[0147] The first magnetic member 40a and the second magnetic member 40b made of magnetic materials are arranged outside the first FPC 34a and the second FPC 34b. The first magnetic member 40a and the second magnetic member 40b are fixed to the base 24 with the first FPC 34a and the second FPC 34b interposed therebetween.

[0148] On the other hand, the first magnet fixing groove 42a and the second magnet fixing groove (not shown) are formed on the side of the first lens support 20a and the second lens support 20b opposite to the first opening 32a and the second opening 32b. The first magnet 44a and the second magnet 44b are inserted into the first magnet fixing groove 42a and the second magnet fixing groove and fixed. The first magnet 44a and the second magnet 44b form a long rectangular shape in the X direction, and are arranged in N stages and S stages in the Z direction. The first magnet 44a and the second magnet 44b are respectively opposite to the first coil 36a, the first position detector 38a and the second coil 36b, and the second position detector 38b in the Y direction. The first magnet 44a and the second magnet 44b are opposite to the first magnetic component 40a and the second magnetic component 40b with the first FPC 34a and the second FPC 34b and the first coil 36a and the second coil 36b interposed therebetween. The attraction force of the first magnet 44a and the second magnet 44b and the first magnetic component 40a and the second magnetic component 40b in the Y direction works. As a result, the first lens support body 20a and the second lens support body 20b to which the first magnet 44a and the second magnet 44b are fixed are attracted in the Y direction by the base 24 to which the first magnetic member 40a and the second magnetic member 40b are fixed.

[0149] The first lens support 20a and the second lens support 20b are supported by the first Z support mechanism 46a and the second Z support mechanism 46b, and can freely move in the Z direction relative to the frame 22. The first Z support device 46a is composed of two first Z support parts 48a, 48a provided on the frame 22 and two first Z guide parts 50a, 50a provided on the first lens support 20a. The second Z support device 46b is also composed of two second Z support parts 48b, 48b provided on the frame 22 and two second Z guide parts 50b, 50b provided on the second lens support 20b.

[0150] The first Z supporting parts 48a, 48a and the second Z supporting parts 48b, 48b are made of ceramic, metal or resin, and in the first embodiment, form a cylindrical part extending in the Z direction. The first Z supporting parts 48a, 48a and the second Z supporting parts 48b, 48b are located on the inner side of the side of the magnets 44a, 44b, and are spaced apart in the X direction, and are respectively provided near the corner of the base 24 and the corner of the partition plate 29.

[0151] The first Z support parts 48a, 48a and the second Z support parts 48b, 48b are circular in cross section in the XY direction, but may be a part of a circle, or may be an ellipse or a polygon other than a circle.

[0152] That is Figures 5 to 7As shown in the figure with the first Z supporting parts 48a, 48a as the representative, a bottom part 52 is formed around the third through hole 28c and the fourth through hole 28d of the base 24, and lower fixing parts 54, 54 are provided on both sides of the inner side of the bottom part 52 to form a cylindrical groove, and the lower ends of the first Z supporting parts 48a, 48a are inserted into the lower fixing parts 54, 54 and fixed. In addition, the upper end of the first magnetic component 40a is bent in the Y direction at both ends of the X direction to form upper fixing parts 56, 56. The upper ends of the first Z supporting parts 48a, 48a are inserted into the insertion holes 58, 58 formed by the upper fixing parts 56, 56 and fixed, and the first Z supporting parts 48a, 48a are fixed to the frame 22. In the first embodiment, the first magnetic member 40a also has the supporting function of the first Z supporting parts 48a, 48a, and the number of parts is reduced compared to the case where a separate supporting member is provided, and the first Z supporting parts 48a, 48a can be stably supported.

[0153] In the above embodiment, the first Z supporting parts 48a, 48a are inserted into the lower fixing parts 54, 54 and the insertion holes 58, 58 of the first magnetic member 40a for fixing, but the lower fixing parts 54, 54 or the insertion holes 58, 58 are designed to be slightly larger, and at least one side of the first Z supporting parts 48a, 48a has some gap relative to the lower fixing parts 54, 54 or the insertion holes 58, 58, or the first Z supporting parts 48a, 48a have positional deviation, in which case it is sufficient to deal with it. Alternatively, it is sufficient to make the lower fixing parts 54, 54 or the upper fixing parts 56, 56 elastic.

[0154] like Figure 5 as well as Figure 6 As shown, one side of the first Z guide portion 50a, 50a has a first contact portion 60 and a second contact portion 62 spaced apart in the Z direction. In the first embodiment, as shown in FIG. Figure 3 As shown, the first contact portion 60 and the second contact portion 62 form a circular hole portion, and one side of the first Z support portion 48a, 48a is inserted into the two holes. On the cross section of the first Z support portion 48a in the XY direction, the first contact portion 60 and the second contact portion 62 are in contact with the outer surface of one side of the first Z support portion 48a, 48a in the 360-degree circumferential direction.

[0155] like Figure 3 As shown, the other side of the first Z guide portion 50a, 50a is composed of two wall surfaces facing each other in the Y direction in the cross section in the XY direction. Figure 7As shown, the first Z guide portion 50a forms protrusions 64, 64, and the wall surfaces on both sides protrude into a curved surface toward the first Z support portion 48a. The center of the protrusions 64, 64 becomes a third contact portion 66 that contacts the first Z support portion 48a. The third contact portion 66 contacts the first Z support portion 48a at two points in the Y direction, thereby reducing friction resistance. Figure 8 As shown, the third contact portion 66 is located between the first contact portion 62 and the second contact portion 64 in the Z direction (in this embodiment, in the center of the first contact portion 60 and the second contact portion 62).

[0156] The first lens support body 20a is supported at three points: the first contact portion 60, the second contact portion 62, and the third contact portion 66. Thus, even when there is a slight positional deviation of the first Z support portions 48a, 48a, it can be easily handled. Figure 8 In the figure, as shown by the two-dot chain line, the first contact portion 60, the second contact portion 62, and the third contact portion 66 form an imaginary triangle 68 (an isosceles triangle in this embodiment). The centroid of the triangle 68 in the Z direction is located at the center of the first magnet 44a in the Z direction. As described later, when the current flows through the first coil 36a, the Lorentz force acts on the first magnet 44a. Therefore, when the first magnet 44a is configured, the centroid of the triangle formed by the first contact portion 60, the second contact portion 62, and the third contact portion 66 is included, thereby reducing the force that tilts the first Z support portion 48a, 48a, and the first support body 20a can be moved smoothly.

[0157] Here, the first Z support parts 48a, 48a are described, but the structure of the Z support parts 48b, 48b is the same.

[0158] like Figure 2 as well as Figure 3 As shown, the first lens support body 20a and the second lens support body 20b form two first engaging parts 70a, 70a and two second engaging parts 70b, 70b on the anti-magnet side in the Y direction, extending in a straight line in the Z direction. In addition, a first engaged part 72a and a second engaged part 72b are formed on the base 24, extending in a straight line in the Z direction, so that they engage with each other between the first engaging parts 70a, 70a and the second engaging parts 70b, 70b. By means of the first engaging parts 70a, 70a and the second engaging parts 70b, 70b and the first engaged parts 72a and the second engaged parts 72b, unnecessary rotation around the optical axis can be prevented. As shown Figure 3As shown, a plurality of gaps are designed in the Y direction between the end surface of the first lens support 20a between the first engaging portions 70a, 70a and the first engaged portion 72a, and between the end surface of the second lens support 20b between the second engaging portions 70b, 70b and the second engaged portion 72b. The first Z support portions 48a, 48a and the second Z support portions 48b, 48b maintain contact with the first Z guide portions 50a, 50a and the second Z guide portions 50b, 50b at at least two points in the Y direction, so the first lens support 20a and the second lens support 20b hardly move even if they are impacted from the outside. Furthermore, the first Z support portions 48a, 48a and the second Z support portions 48b, 48b extend in the Z direction, so even if the first lens support 20a and the second lens support 20b move back to the frame 22 side, they can be prevented from being damaged by local forces.

[0159] In the above structure, the first coil 36a and the second coil 36b are arranged between the first magnet 44a and the second magnet 44b with magnetic flux in the Y direction and the first magnetic member 40a and the second magnetic member 40b. If one of them is energized, the current in the X direction will flow into the first coil 36a or the second coil 36b, and according to Fleming's left-hand rule, the first coil 36a or the second coil 36b generates a Lorentz force in the Z direction. The first coil 36a and the second coil 36b are fixed on the base 24, so the reaction generated on the first magnet 44a or the second magnet 44b constitutes a driving force for the first lens support 20a or the second lens support 20b, and the first lens support 20a or the second lens support 20b moves in the Z direction while being supported by the first Z support device 46a or the second Z support device 46b.

[0160] As for the driving force, the driving force F is F>(μ1×N1+μ2×N2)+W, which can be handled. In the formula, N: the adsorption force generated by the magnet (N=N1+N2), μ1: the friction coefficient between one side of the first Z support part and one side of the first Z guide part or one side of the second Z support part and one side of the second Z guide part, μ2: the friction coefficient between the other side of the first Z support part and the other side of the first Z guide part or the other side of the second Z support part and the other side of the second Z guide part, W: the total weight of the first mover (the first lens body and the first lens support body) or the second mover (the second lens body and the lens support body).

[0161] If the power supply to the first coil 36a or the second coil 36b is stopped, the first lens support body 20a or the second lens support body 20b stops at the position where the power supply is stopped due to the attraction of the first magnet 44a or the second magnet 44b and the friction between the first Z support part 48a, 48a and the first Z guide part 50a, 50a or the second Z support part 48b, 48b and the second Z guide part 50b, 50b.

[0162] Assume again that the camera device 10 is subjected to an impact in the -Y direction. If subjected to an impact in the -Y direction, the first lens support 20a and the second lens support 20b resist the attractive force of the first magnet 44a and the second magnet 44b and tend to move in the +Y direction. However, since the first Z guides 50a, 50a and the second Z guides 50b, 50b do not leave the first Z support 48a, 48a and the second Z support 48b, 48b, but maintain contact in the Y direction, the first lens support 20a and the second lens support 20b hardly move even if subjected to an external impact. After the impact, the first lens support 20a and the second lens support 20b generate a force that tends to return to the -Y direction due to the attractive force generated by the first magnet 44a and the second magnet 44b. Even so, since the first Z guide parts 50a, 50a and the second Z guide parts 50b, 50b maintain contact with the first Z support parts 48a, 48a and the second Z support parts 48b, 48b in the Y direction, the first lens support body 20a and the second lens support body 20b hardly move even if they receive external impact.

[0163] Thus, even if the first Z guides 50a, 50a or the second Z guides 50b, 50b are slightly deformed, the first Z support parts 48a, 48a and the second Z support parts 48b, 48b are changed into shapes extending in the Z direction, so that the first Z support parts 48a, 48a and the second Z support parts 48b, 48b are not locally acted on, but a continuous force is generated along the Z direction. As a result, the reciprocating motion of the first lens support 20a and the second lens support 20b does not cause drastic motion changes.

[0164] In the first embodiment, the first mover 16a and the second mover 16b are supported by the Z support device, but one of the first mover 16a and the second mover 16b may also be supported by other structures, such as by a spring.

[0165] Figures 9 to 13 A camera apparatus 10 according to a second embodiment of the present invention is shown.

[0166] The second embodiment differs from the first embodiment in that the first Z support parts 48a, 48b and the second Z support part (not shown in the figure. Only the first Z support parts 48a, 48b are described below) are integrated with the base 24 and further reinforced by ribs 74, 74.

[0167] That is, the lower ends of the first Z support parts 48a and 48b extend from the bottom surface part 52 of the base 24 to the Z direction as a whole with the base 24. Furthermore, the first support parts 48a and 48a are connected and fixed by ribs 74 and 74, and the ribs 74 and 74 extend from the side surface of the base 24 and the partition plate 29 to the Y direction and the X direction as a whole with the base 24. The first Z support part 48a on one side and the first Z support part 48a on the other side are connected and fixed by ribs 74 and 74 in different directions, respectively, so that they have a strong ability to cope with external impact.

[0168] The upper ends of the first Z supporting portions 48 a and 48 a are inserted into the insertion holes 58 formed in the upper fixing portion 56 of the first magnetic member 40 a and fixed in place, similarly to the first embodiment.

[0169] In the second embodiment, the first Z support parts 48a, 48a are formed integrally with the base 24, but when the base 24 is made of resin and produced by a metal mold, the metal mold can be pulled out in the Z direction. However, it takes time to make the first opening 32a into a cutout shape.

[0170] In the first embodiment, one side of the first Z guide 50a, 50a is a through hole with a circular cross section, but in order to avoid the rib 74, a cutout extending from the Y direction end of the through hole to the Y direction is designed on one side of the first Z guide 50a, 50a. It is also preferable that the width of the rib 74 is smaller than the diameter of the first Z support 48a. That is, one side of the first Z support 48a, 48a has a circular portion of more than 180° on at least a part of its outer surface. Moreover, one side of the first Z guide 50a, 50a is in contact with one side of the first Z support 48a, 48a for at least 180°. Thus, even if it is impacted from the outside, one side of the first Z guide 50a, 50a will not leave the one side of the first Z support 48a, 48a. Moreover, the other side of the first Z guide 50a, 50a is made to extend the rib 74 in the X direction, so it can be the same as the other side of the first Z guide 50a, 50a in the first embodiment. At this time, the width of the rib 74 is also equal to or less than the diameter of the other side of the first Z support portion 48a, 48a. With this structure, in the second embodiment, the same effect as that of the first embodiment can be obtained.

[0171] The same parts as those in the first embodiment are given the same symbols and their description is omitted.

[0172] Figures 14 to 22 A camera apparatus 10 according to a third embodiment of the present invention is shown.

[0173] The third embodiment is different from the first embodiment in that an adjustment device 76 is designed to adjust the inclination angle of the first Z support parts 48a, 48a and the second Z support parts (not shown in the figure. Only the first Z support parts 48a, 48a are described below) relative to the frame 22. Moreover, with the design of the adjustment device 76, the first magnetic component 40a no longer needs to have a supporting function, and is only a flat plate in the third embodiment.

[0174] That is, the adjustment device 76 includes a guide plate 78, a push receiving member 80, and a push member 82. The guide plate 78 is shaped so as to be embedded outside the base 24 and fixed to the base 24. The push receiving member 80 is located on the first magnet 44a side and fixed to the base 24. The push receiving member 80 includes a first plate portion 84 extending in the X direction, and second plate portions 86, 86 located at both ends of the first plate portion 84 and bent in the Y direction. Screw holes 88 are formed at four locations near both ends of the first plate portion 84 and the second plate portions 86, 86, respectively.

[0175] The pressing member 82 is constituted by an adjustment screw in the third embodiment. The pressing member 82 is screwed into the screw hole 88 of the pressing receiving member 80. The tip of the pressing member 82 contacts the first Z supporting parts 48a and 48a in the X direction and the Y direction respectively at a position slightly in front of the upper end of the first Z supporting parts 48a and 48a.

[0176] The pressing member 82 may be composed not only of a screw thread but also of other devices such as a cam.

[0177] The adjustment device 76 has a push receiving plate 90 extending in the X direction. The central portion of the push receiving plate 90 is integrated with the guide plate 78. Push receiving parts 92, 92 are formed at both ends of the push receiving plate 90. The push receiving parts 92, 92 are substantially 45 degrees with respect to the X direction and the Y direction and have elasticity. The push receiving parts 92, 92 are substantially 45 degrees with respect to each push component 82 on the opposite side of the push component 82, and contact with the first Z support parts 48a, 48a, and the first Z support parts 48a, 48a are pressed against the push component 82.

[0178] And if Figures 17 to 19As shown, the adjustment device 76 has tilted receiving parts 94, 94. The tilted receiving parts 94, 94 are recessed in the inner surface of the bottom surface part 52 of the base 24 to form a hemispherical shape. On the other hand, at the lower end of the first Z support parts 48a, 48a, hemispherical tilted receiving parts 96, 96 are formed. The tilted receiving parts 96, 96 are embedded in the tilted receiving parts 94, 94 and contact with them. Therefore, the first Z support parts 48a, 48a can be tilted in the Xθ and Yθ directions with the tilted parts 96, 96 as a fulcrum.

[0179] The adjustment device 76 has support spring portions 98, 98 that support the upper ends of the first Z support portions 48a, 48a. The support spring portions 98, 98 are formed integrally with the guide plate 78 in the third embodiment. The support spring portions 98, 98 are bent in the X direction and the Y direction, and the upper ends of the first Z support portions 48a, 48a are fixed to the support spring portions 98, 98. Therefore, the first Z support portions 48a, 48a are supported by the support spring portions 98, 98 and can move freely 360 degrees.

[0180] In the above structure, when the pressing member 82 is rotated, the pressing member 82 resists the pressing receiving parts 92, 92, and the first Z supporting parts 48a, 48a are inclined in the Xθ, Yθ directions by resisting the pressing receiving parts 92, 92 with the inclined receiving parts 96, 96 as the fulcrum. When the first Z supporting parts 48a, 48a are inclined with the inclined parts 96, 96 as the fulcrum, the first Z supporting parts 48a, 48a are supported by the pressing member 82, the pressing receiving parts 92, 92, and the supporting spring parts 98, 98, so that the inclination is maintained.

[0181] The tilt adjustment of the first Z support parts 48a, 48a can be performed before the lens driving device 14 is shipped, and the tilt of the first lens support body 20a or the second lens support body 20b relative to the frame 22 is adjusted to reduce the deviation of the first lens body 12a or the second lens body 12b in the optical axis direction. After the adjustment is completed, the tilt bearing part 94 and the tilted bearing part 96 are preferably fixed with an adhesive. The first Z support parts 48a, 48a are preferably further fixed with an adhesive to the contact parts between the pushing parts 82, 82, the pushing bearing parts 92, 92 and the supporting spring parts 98, 98.

[0182] The parts that are the same as those in the first embodiment and the second embodiment are simply denoted by reference numerals and their description is omitted.

[0183] In the first to third embodiments, the first coil 36a and the second coil 36b and the first magnets 44a, 44a and the second magnets 44b, 44b can be interchanged. That is, the first coil 36a and the second coil 36b are fixed to the first mover 16a and the second mover 16b, and the first magnets 44a, 44a and the second magnets 44b, 44b are fixed to the stator 18. At this time, other components are properly rearranged to achieve the best state.

[0184] Figure 23 to Figure 29 A camera apparatus 10 according to a fourth embodiment of the present invention is shown.

[0185] The fourth embodiment is different from the first to third embodiments in that the mobile device can move not only in the Z direction but also in the XY direction.

[0186] That is, the first movable member 12a and the second movable member 12b have a first intermediate body 100a and a second intermediate body 100b, and the first lens support body 20a and the second lens support body 20b can be moved in the XY directions by the first intermediate body 100a and the second intermediate body 100b.

[0187] The first mover 12 a and the second mover 12 b have the same structure, so the first mover 12 a will be described below.

[0188] The first mover 12a is Fig.24 as well as Fig.25 As shown, there is a first intermediate body 100a that surrounds the first lens support body 20. The first intermediate body 100a has an upper plate 102, a lower plate 104 and an upper cover 106. The first lens support body 20a, the upper plate 102 and the lower plate 104 are made of engineering plastics such as liquid crystal polymer (LCP), polyacetal, polyamide, polycarbonate, deformed polyphenylene ester or polybutylene terephthalate. And the upper cover 106 is made of metal. The upper plate 102, the lower plate 104 and the upper cover 106 are respectively formed with light-transmitting openings 110, 112, 108. The openings 110, 112, 108 are respectively formed in a substantially circular shape.

[0189] The first intermediate body 100a supports the first lens support body 20a so as to be movable in the Y direction and the X direction. That is, the first intermediate body 100a has an XY support device 114, and the first lens support body 20a is movable in the XY direction by the XY support device 114.

[0190] The XY support device 114 is composed of an X support device 116 and a Y support device 118 separated in the Z direction. The X support device 116 is designed to be below the Z direction, such as Fig.28 as well as Fig.29 As shown, it is composed of an X-support portion 120 protruding from the bottom of the upper plate 102 and an X-guide portion 122 recessed from the top of the lower plate 106, and the X-support portion 120 is embedded in the X-guide portion 122. The X-support portion 120 and the X-guide portion 122 extend in the X direction and are formed near the four corners of the upper plate 102 and the lower plate 104. The X-support portion 120 and the X-guide portion 122 extending in the X direction are embedded in the Y direction to restrict movement, so that the upper plate 102 can move freely only in the X direction relative to the lower plate 104. The X-support portion 120 and the X-guide portion 122 are cut along the Y direction in the Z direction (refer to Fig.29 ) and is surrounded by three orthogonal lines, and in the X direction, is in surface contact with three planes (opposite sides and bottom).

[0191] The Y support device 118 is designed to be above the Z direction, such as Fig.28 as well as Fig.29 As shown, it is composed of a Y support portion 124 protruding from the upper side plate 102, and a Y guide portion 126 recessed from the lower side of the first lens support body 20a, and the Y support portion 124 is embedded in the Y guide portion 126. The Y support portion 124 and the Y guide portion 126 extend in the Y direction and are formed near the four corners of the first lens support body 20a and the upper side plate 102. The Y support portion 124 and the Y guide portion 126 extending in the Y direction are embedded in the X direction to limit movement, so the first lens support body 20a can only move freely in the Y direction relative to the upper side plate 102. The Y support portion 124 and the Y guide portion 126 are in the cross section cut along the X direction by the Z direction (refer to Fig.28 ) and is surrounded by three orthogonal lines, and in the Y direction, is in surface contact with three planes (opposite sides and top).

[0192] At the four corners of the upper cover 106, mounting portions 128 are provided, extending downward in the Z direction. The mounting portions 128 are formed with mounting holes 130 in a quadrangular shape. Furthermore, at the four corners of the lower plate 104, mounting portions 132 are formed, protruding laterally. The mounting holes 130 are embedded in the mounting portions 132, and the upper cover 106 is fixed to the lower plate 104. Between the lower surface of the upper cover 106 and the upper surface of the first lens support body 20a, as shown in FIG. Fig.28 as well as Fig.29 As shown, a necessary minimum gap is formed to include errors due to tolerances, etc., and to restrict the movement of the first lens support body 20a or the upper plate 102 relative to the lower plate 104 in the Z direction.

[0193] On the outer side of the first lens support 20a, an X driving magnet 134 is fixed on the surface on the side opposite to the partition in the X direction, and a Y driving magnet 136 is fixed on one surface in the Y direction. The X driving magnet 134 forms S and N stages in the X direction. The Y driving magnet 136 on one surface in the Y direction forms S and N stages in the Y direction.

[0194] Furthermore, an X magnetic member 138 composed of a magnetic body is provided below the lower plate 104. The X magnetic member 138 sandwiches the lower plate 104, faces the X driving magnet 134 in the Z direction, and generates an attractive force between the X magnetic member 138 and the X driving magnet 134. Therefore, the first lens support 20a and the upper plate 102 sandwich the lower plate 104 and are attracted, ensuring that the X support portion 120 and the X guide portion 122, and the Y support portion 124 and the Y guide portion 126 are in contact in the Z direction.

[0195] Furthermore, a Z driving magnet 140 is fixed to the outer surface of the lower plate 104 on the surface opposite to the surface on which the Y driving magnet 136 is provided in the Y direction. The Z driving magnet 140 is divided into two pieces in the Z direction, forming an S-level and an N-level in the Y direction, respectively, and the polarities thereof are opposite in the vertical direction.

[0196] Even on the second lens support body 20b side, the X driving magnet 134 is not provided on the side of the spacer 29. If provided, it is preferably provided on either the first lens support body 20a side or the second lens support body 20b side.

[0197] like Fig.26 As shown in FIG. 1 , first openings 32a are formed on three sides of the base 24. When setting, the first openings 32a are surrounded, and the first FPC 34a surrounds the outer side of the base 24. Fig.26 as well as Fig. 27 As shown, the first FPC 34 a surrounds the outer shape of the base 24 and is bent into a U-shape, and a terminal portion 142 is provided at the lower portion thereof.

[0198] Inside the first FPC 34a, an X driving coil 144 is fixed on one surface in the X direction, and a Y driving coil 146 is fixed on one surface in the Y direction. Furthermore, a Z driving coil 148 is fixed on the other surface in the Y direction inside the first FPC 34a. Further inside the first FPC 34a, an X position detector 150 is arranged in the middle of the X driving coil 144, a Y position detector 152 is arranged in the middle of the Y driving coil 146, and a Z position detector 154 is arranged on the side of the Z driving coil 148.

[0199] The X driving coil 144 , the Y driving coil 146 , and the Z driving coil 148 face the base 24 through the first opening 32 a , and the X driving magnet 134 , the Y driving magnet 136 , and the Z driving magnet 140 face each other.

[0200] The Z support device and the Z-direction driving structure of the fourth embodiment are the same as those of the first embodiment, so the same reference numerals are attached in the drawings and the description is omitted. However, the Z support device and the Z-direction driving structure are arranged between the base 24 and the lower side plate 104 of the first intermediate body 100a.

[0201] In the above configuration, when current is supplied to the X driving coil 144 facing the X driving magnet 134 having a magnetic flux in the Z direction, a current in the Y direction flows into the X driving coil 144, and according to Fleming's left-hand rule, the X driving coil 144 generates a Lorentz force in the X direction. The X driving coil 144 is fixed to the base 24, so the reaction force acting on the X driving magnet 134 becomes a driving force for the first lens support 20a and the upper plate 102. The first lens support 20a and the upper plate 102 move in the X direction while being supported by the X supporting device 116.

[0202] Here, if Fig.29 As shown, assuming that the driving force in the X direction is Fx, then Fx>μx1(Nx1+Wx1)+μx2(Nx2+Wx2)

[0203] The first lens support body 20 a and the lower plate 104 can be driven in the X direction.

[0204] Here, μx1 and μx2 are friction coefficients between the X support portion 120 and the X guide portion 122, respectively; Wx1 and Wx2 are loads applied to the X support portion 120, respectively; and Nx1 and Nx2 are forces applied to the X support portion 120 by the attraction between the X driving magnet 134 and the X magnetic member 138.

[0205] N+Wx=(Nx1+Wx1)+(Nx2+Wx2), Fx can be expressed as the following formula.

[0206] Fx=μx(N+Wx)

[0207] However, μx is the average value of μx1 and μx2.

[0208] Furthermore, if the Y driving coil 146 facing the Y driving magnet 136 having a magnetic flux in the Z direction is energized, the current in the X direction will flow into the Y driving coil 146, and according to Fleming's left-hand rule, a Lorentz force in the Y direction will be generated on the Y driving coil 146. The Y driving coil 146 is fixed to the base 24, so the reaction force acting on the Y driving magnet 146 becomes a driving force for the first lens support body 20a. Furthermore, the first lens support body 20a moves in the Y direction while being supported by the Y supporting device 118.

[0209] Here, if Figure 6 As shown, assuming that the driving force in the Y direction is Fy, then Fy>μy1(Ny1+Wy1)+μy2(Ny2+Wy2)

[0210] The first lens support body 20a can be driven in the Y direction.

[0211] Here, μy1 and μy2 are friction coefficients between the Y support portion 124 and the Y guide portion 126, respectively, Wy1 and Wy2 are loads applied to the support portion 124, and Ny1 and Ny2 are forces applied to the Y support portion 124 by the attraction between the X drive magnet 134 and the X magnetic member 138. Furthermore, N+Wy=(Ny1+Wx1)+(Ny2+Wy2), and Fy can be expressed as follows.

[0212] Fy=μy(N+Wy)

[0213] However, μy is the average value of μy1 and μy2.

[0214] After the first lens support body 20a moves in either the X direction or the Y direction, if the power supply to the X driving coil 144 is stopped, the first lens support body 20a stops at the position where the power supply is stopped due to the attraction between the X driving magnet 134 and the magnetic member 138 and the friction between the X supporting portion 120 and the X guide portion 122, and between the Y supporting portion 124 and the Y guide portion 126.

[0215] Here, it is assumed that the camera device 10 is subjected to an impact in the -Y direction. If the camera device 10 is subjected to an impact in the -Y direction, the first lens support 20a and the upper plate 102 will resist the attraction between the X driving magnet 134 and the magnetic component 138, and will move in the +Y direction. However, the first lens support 20a and the upper plate 102 are supported by the X support device 116, and the movement in the Y direction is restricted, so even if they are subjected to an external impact, they will not leave and will hardly move. After being impacted, the first lens support 20a and the upper plate 102 generate a force to return to the -Y direction due to the attraction generated by the X driving magnet 134 and the X magnetic component 138. Even so, the X support part 120 and the X guide part 122 remain in contact, and even if they are subjected to an external impact, the first lens support 20a and the upper plate 102 will hardly move. For the impact in the X direction, the X support part 120 and the X guide part 122 are in contact with each other, and the first lens support body 20a is guided by the X support device 116, so that the first lens support body 20a moves only relative to the upper plate 102. Moreover, even for the impact in the Z direction, the X support part 120 and the X guide part 122 are easy to keep in contact, so even if they leave, when they return, the surface can block the impact, so the degree of damage is small, and the first lens support body 20a can be ensured to move smoothly. The Y support device 118 also works in the same way, and the second lens support body 20b is also the same.

[0216] Furthermore, in the X support device 116 and the Y support device 118, the X support portion 120 and the X guide portion 122 and the Y support portion 124 and the Y guide portion 126 are respectively embedded in the X direction and the Y direction to form independent support devices. Therefore, even if the X and Y directions are driven simultaneously, no force is generated in the rotation direction, which can prevent the first lens support body 20a from vibrating in the rotation direction.

[0217] In the fourth embodiment, the X support device 116 is formed between the upper plate 102 and the lower plate 104, and the Y support device 118 is formed between the first lens support body 20a and the upper plate 102. However, conversely, the X support device 116 may be formed between the first lens support body 20a and the upper plate 102, and the Y support device 118 may be formed between the upper plate 102 and the lower plate 104.

[0218] Fig.30 as well as Fig.31 A fifth embodiment of the present invention is shown.

[0219] The fifth embodiment is different from the fourth embodiment in the structures of the X support device 116 and the Y support device 118 .

[0220] That is, in the X support device 116, the lower side of the X support portion 120 protrudes into an arc shape. Fig.30In the Z-direction cross section shown, the side surfaces of the X-supporting portion 120 and the X-guiding portion 122 are in line contact and the bottom surfaces are in point contact. In the X-direction, the side surfaces are in plane contact and the bottom surfaces are in line contact. Moreover, the upper side of the Y-supporting portion 124 protrudes into an arc shape. Therefore, in Fig.31 In the Z-direction cross section shown, the side surfaces of the Y support portion 124 and the Y guide portion 126 are in line contact and the bottom surfaces are in point contact. In the X-direction, the side surfaces are in plane contact and the bottom surfaces are in line contact.

[0221] Thus, in the X support device 116 and the Y support device 118, the X support portion 120 and the X guide portion 122 and the Y support portion 124 and the Y guide portion 126 are in surface and line contact in the X direction, so that the friction force can be reduced compared to the fourth embodiment.

[0222] The same parts as those in the fourth embodiment are denoted by the same reference numerals and the description thereof will be omitted.

[0223] Fig.32 as well as Fig.33 A sixth embodiment of the present invention is shown.

[0224] The sixth embodiment is different from the fourth and fifth embodiments in the structures of the X support device 116 and the Y support device 118 .

[0225] That is, in the X-support device 116, the bottom and side surfaces of the X-support portion 120 protrude in an arc shape. Fig.32 In the Z-direction cross section shown, the side and bottom surfaces of the X-support portion 120 and the X-guide portion 122 are in point contact. In the X-direction, three points of the side and bottom surfaces form line contact. In addition, the top and side surfaces of the Y-support portion 124 protrude into an arc shape. Therefore, Fig.33 In the Z-direction cross section shown, the side and bottom surfaces of the Y support portion 124 and the Y guide portion 126 are in point contact. In the X-direction, three points of the side and bottom surfaces form point contact. In the sixth embodiment, two side surfaces in the Z-direction are in point contact, but only one side surface may be in point contact.

[0226] As described above, in the X support device 116 and the Y support device 118, the X support portion 120 and the X guide portion 122, and the Y support portion 124 and the Y guide portion 126 are in point contact at three points, so that the friction force can be further reduced compared to the fifth embodiment.

[0227] The same parts as those in the fourth and fifth embodiments are denoted by the same reference numerals and description thereof will be omitted.

[0228] Fig.34 A seventh embodiment of the present invention is shown.

[0229] In the seventh embodiment, the X support portion 120 has a straight side surface, but the X guide portion 122 protrudes into a curved surface. Therefore, the X support portion 120 and the X guide portion 122 are in point contact in the XY direction cross section.

[0230] Fig.35 An eighth embodiment of the present invention is shown.

[0231] In the eighth embodiment, the X guide 122 has a linear side surface, but the X support 120 protrudes into a curved surface. Therefore, the X support 120 and the X guide 122 are in point contact in the XY direction cross section.

[0232] In the above embodiments, the convex portion is the support portion and the concave portion is the guide portion, but the convex portion may be the guide portion and the concave portion may be the support portion. The structures of the fourth to eighth embodiments may be appropriately combined.

[0233] In the fourth embodiment, an intermediate body is provided on the first mover 16a and the second mover 16b, and an XY support device is provided on the first mover 16a and the second mover 16a. However, an intermediate body may be provided on the stator 18, an XY support device may be provided on the stator side, and a Z support device may be provided on the first mover 16a and the second mover 16b. In this case, the X support device 116 may be formed between the lower plate 104 and the bottom surface portion 52 of the base 24 of the frame 22, and the Y support device 118 may be formed between the upper plate 102 and the lower plate 104. Furthermore, the first mover 16a and the second mover 16b may be supported by a leaf spring or the like. The XY support device may be provided on the first mover 16a, and the Z support device may be provided on the second mover 16b, or only the Z support device may be provided on the first mover 16a.

[0234] In the first to eighth embodiments described above, the first mover 16a and the second mover 16b use the same supporting device, but this is not limited to this, and different supporting devices may be used. In addition, one of the first mover 16a and the second mover 16b may use the supporting device described in the first to eighth embodiments, and the other may use other methods, such as a leaf spring. In addition, the X direction and the Y direction are relative and can be replaced with each other.

[0235] Furthermore, in the above-mentioned embodiment, the photographing device having two lens bodies is described, but the present invention can also be applied to a photographing device having three or more lens bodies.

Claims

1. A lens driving device, in an XYZ orthogonal coordinate system, comprising: A first mover comprises a first lens support body for supporting a first lens body, with a Z direction being an optical axis direction of the first lens body; A second mover, comprising a second lens support body for supporting a second lens body, arranged in parallel with the first mover, with the Z direction being the optical axis direction of the second lens body; A stator, comprising a frame surrounding the first mover and the second mover; A Z support device, supporting at least one of the first lens support body and the second lens support body relative to the frame so that the lens support body can move freely in the Z direction; It is characterized in that the Z supporting device includes a Z supporting portion arranged on the stator, and a Z guiding portion arranged on at least one of the first mover and the second mover, the Z supporting portion extends in the Z direction and contacts with at least 2 points of the Z guiding portion on the cross section in the XY direction.

2. The lens driving device according to claim 1, characterized in that: The lens driving device further includes an XY supporting device, wherein the XY supporting device supports at least one of the first lens supporting body and the second lens supporting body relative to the frame to freely move in the X direction and the Y direction, and the XY supporting device includes: An X support device disposed on one side of the Z direction; and A Y support device disposed on the other side of the Z direction; The X support device comprises an X support portion and an X guide portion extending in the X direction, wherein the X support portion contacts the X guide portion at least at two points on a cross section in the YZ direction; The Y support device includes a Y support portion and a Y guide portion extending in the Y direction. On a cross section in the XZ direction, the Y support portion contacts the Y guide portion at at least two points.

3. The lens driving device according to claim 2, characterized in that: At least one of the first mover and the second mover includes an intermediate body surrounding at least one of the first lens support body and the second lens support body, the Z support device supports the intermediate body and is freely movable relative to the frame in the Z direction together with at least one of the first lens support body and the second lens support body, and the XY support device supports at least one of the first lens support body and the second lens support body and is freely movable relative to the intermediate body in the X direction and the Y direction.

4. The lens driving device according to claim 2, characterized in that: The stator includes an intermediate body that surrounds at least one of the first lens support body and the second lens support body, the frame surrounds the intermediate body, the Z support part is arranged on the intermediate body, the Z support device supports at least one of the first lens support body and the second lens support body, and is freely movable relative to the intermediate body in the Z direction; the XY support device supports the intermediate body, and is freely movable relative to the frame in the X direction and the Y direction together with at least one of the first lens support body and the second lens support body.

5. The lens driving device according to claim 1, characterized in that: The Z support portion includes a columnar portion extending in the Z direction, the Z guide portion is formed as two hole portions spaced apart in the Z direction, and the columnar portion is inserted into the two hole portions to contact therewith.

6. The lens driving device according to claim 1, characterized in that: The Z support portion includes a columnar portion extending in the Z direction, and the Z guide portion includes a curved protrusion protruding toward the Z support portion, wherein the protrusion contacts the columnar portion.

7. The lens driving device according to claim 1, characterized in that: The two Z supporting devices are separately arranged in a direction orthogonal to the Z direction.

8. The lens driving device according to claim 1, characterized in that: The lens driving device also includes an adjusting device, which adjusts the inclination angle of the Z supporting portion relative to the frame.

9. The lens driving device according to claim 1, characterized in that: The lens driving device also includes: A first driving device for driving the first lens support body; A second driving device for driving the second lens support body; The first driving device includes a first coil disposed on the frame and a first magnet disposed opposite to the first coil; The second driving device includes a second coil disposed on the frame and a second magnet disposed opposite to the second coil; At most, only one of the first magnet and the second magnet disposed between the first lens support body and the second lens support body is disposed.

10. A lens driving device, in an XYZ orthogonal coordinate system, comprising: A first mover comprises a first lens support body for supporting a first lens body, with a Z direction being an optical axis direction of the first lens body; A second mover, comprising a second lens support body for supporting a second lens body, arranged in parallel with the first mover, with the Z direction being the optical axis direction of the second lens body; A stator, comprising a frame surrounding the first mover and the second mover; An XY support device supports at least one of the first lens support body and the second lens support body relative to the frame and moves freely in the XY direction. Features The XY support device comprises: An X support device disposed on one side of the Z direction; and A Y support device disposed on the other side of the Z direction; The X support device includes an X support portion and an X guide portion extending in the X direction, and in a cross section in the YZ direction, the X support portion contacts at least two points of the X guide portion; The Y support device includes a Y support portion and a Y guide portion extending in the Y direction. On a cross section in the XZ direction, the Y support portion contacts the Y guide portion at at least two points.

11. The lens driving device according to claim 10, characterized in that: At least one of the first mover and the second mover includes an intermediate body arranged around at least one of the first lens support body and the second lens support body, and the XY support device supports at least one of the first lens support body and the second lens support body, and is freely movable relative to the intermediate body in the X direction and the Y direction.

12. The lens driving device according to claim 10, characterized in that: The mover includes an intermediate body that surrounds at least one of the first lens support body and the second lens support body, the frame surrounds the intermediate body, and the XY support device supports the intermediate body and moves freely relative to the frame in the X direction and the Y direction together with at least one of the first lens support body and the second lens support body.

13. The lens driving device according to claim 10, characterized in that: The X-supporting portion is protruding, the X-guiding portion is recessed, and the X-supporting portion is embedded in the X-guiding portion; The Y supporting portion is protruding, the Y guiding portion is recessed, and the Y supporting portion is embedded in the Y guiding portion.

14. The lens driving device according to claim 10, characterized in that: The lens driving device includes an intermediate body arranged around at least one of the first lens support body and the second lens support body, the intermediate body includes an upper side plate and a lower side plate, the Y support device is formed between at least one of the first lens support body and the second lens support body and the upper side plate, and the X support device is formed between the upper side plate and the lower side plate.

15. The lens driving device according to claim 10, characterized in that: The lens driving device includes an intermediate body arranged around at least one of the first lens supporting body and the second lens supporting body, the intermediate body includes an upper side plate and a lower side plate, the Y supporting device is formed between the upper side plate and the lower side plate, and the X supporting device is formed between the lower side plate and the bottom surface of the frame.

16. The lens driving device according to claim 10, characterized in that: The lens driving device also includes: A first driving device for driving the first lens support body; A second driving device for driving the second lens support body; The first driving device includes a first coil disposed on the frame and a first magnet disposed opposite to the first coil; The second driving device includes a second coil disposed on the frame and a second magnet disposed opposite to the second coil; At most, only one of the first magnet and the second magnet disposed between the first lens support body and the second lens support body is disposed.

17. A photographic device, characterized in that: The lens driving device comprises the lens driving device according to any one of claims 1 to 16, the first lens body supported by the first lens supporting body, and the second lens body supported by the second lens supporting body.

18. An electronic device, characterized in that: A photographic device comprising the photographic device of claim 17.

Images