CN209821468U - Lens driving device, camera device and electronic equipment - Google Patents

Abstract

Provided are a lens driving device, a camera device and an electronic device, wherein each lens supporting body can move smoothly. The lens driving device (14) comprises a first mover (16a), a second mover (16b), a stator (18) and Z supporting devices (16a, 46b), wherein the Z supporting devices (46a, 46b) comprise Z supporting parts (48a, 48b) arranged on the stator (18) and Z guide parts (50a, 50b) arranged on at least one of the first mover (16a) and the second mover (16b), the Z supporting parts (48a, 48b) extend in the Z direction and are in contact with at least 2 points of the Z guide parts (50a, 50b) on the section in the XY direction.

Description

Lens driving device, camera device and electronic equipment

[ technical field ] A method for producing a semiconductor device

The utility model relates to a lens drive arrangement, camera device and electronic equipment.

[ background of the invention ]

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 small camera of this type is widely known as a lens driving device in which 2 or more lenses are arranged in parallel and moved individually.

[ Utility model ] content

[ problem to be solved by the present invention ]

In patent document 1, two lens holders for holding lenses and a frame provided around the two lens holders are provided, and a plurality of balls are used to freely move the lens holders to the frame. In the conventional lens driving device, a magnet is provided, a magnetic member is provided to face the magnet, and the ball is sandwiched between the lens support and the frame by an attractive force between the magnet and the magnetic member.

However, if a force higher than the attractive force is generated between the magnet and the magnetic member due to a fall or the like, the lens support is separated from the ball, and then the lens support comes into contact with the ball again, and the frame in point contact with the ball is impacted, so that the ball contact portion may be depressed, and cracks may be generated, and smooth movement of the lens support cannot be ensured. Further, there are a plurality of lens holders, and there is a high possibility that a problem arises in the support of the lens holders.

The present invention is directed to a lens driving device, a camera device, and an electronic apparatus including a plurality of lens supporting bodies, which can eliminate the above-mentioned existing problems and ensure smooth movement of each lens supporting body.

[ MEANS FOR SOLVING PROBLEMS ] to solve the problems

In order to achieve the above object, a first aspect of the present invention is a lens driving device including a first mover including a first lens support for supporting a first lens body and having a Z direction as an optical axis direction, a second mover including a second lens support for supporting a second lens body and having the Z direction as the optical axis direction, the second mover being disposed in parallel with the first mover, a stator including a frame surrounding the first mover and the second mover, and a Z supporting device for supporting at least one of the first lens support and the second lens support relative to the frame so as to be movable in the Z direction, the Z supporting device including a Z supporting portion provided on the stator and a Z guide portion provided on at least one of the first mover and the second mover, the Z support extends in the Z direction and contacts at least 2 points of the Z guide in a cross section in the XY direction.

A second aspect of the lens driving device of the present invention includes a first mover including a first lens support for supporting a first lens body, the first mover being arranged in parallel with the first mover and including a second lens support for supporting a second lens body, the second mover including a frame surrounding the first mover and the second mover, the frame supporting at least one of the first lens support and the second lens support to the frame so as to be movable in the XY directions, the XY support including an X support provided on one side of the Z direction and a Y support provided on the other side of the Z direction, the X support including an X support portion and an X guide portion extending in the X direction, the X support part contacts with at least 2 points of the X guide part on the section of YZ direction, the Y support device has a Y support part and a Y guide part extending in the Y direction, and the Y support part contacts with at least 2 points of the Y guide part on the section of XZ direction.

[ Utility model effect ] is provided

According to the present invention, the Z-supporting portion or the XY-supporting portion extends in the Z direction or the XY direction, and the Z-supporting portion or the XY-supporting portion contacts at least 2 points of the Z guide portion or the X or Y guide portion on the cross section in the XY direction, the YZ direction, or the XZ direction of the Z-supporting portion, so that the impact received by 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, and the smooth movement of at least one of the first lens body and the second lens body can be ensured.

[ description of the drawings ]

Fig. 1 is a perspective view of a camera according to a first embodiment of the present invention, viewed from an oblique upper perspective.

Fig. 2 is an exploded perspective view of a camera according to a first embodiment of the present invention, viewed from an oblique lower perspective.

Fig. 3 is a sectional view of a camera according to a first embodiment of the present invention, cut out in a plane.

Fig. 4 is a sectional view of a line a-a in fig. 3, showing a camera according to a first embodiment of the present invention.

Fig. 5 is a sectional view of the camera device according to the first embodiment of the present invention, taken along line B-B of fig. 3.

Fig. 6 is a cross-sectional view of a camera device according to a first embodiment of the present invention, taken along line C-C of fig. 3.

Fig. 7 is a cross-sectional view of a camera device according to a first embodiment of the present invention, taken along line D-D of fig. 3.

Fig. 8 is a side view of the camera device according to the first embodiment of the present invention, with the frame removed.

Fig. 9 is a sectional view of a photographic apparatus according to a second embodiment of the present invention, cut out in a plane.

Fig. 10 is a sectional view of the camera device according to the second embodiment of the present invention, taken along line E-E of fig. 9.

Fig. 11 is a sectional view of a camera device according to a second embodiment of the present invention, taken along line F-F of fig. 9.

Fig. 12 is a sectional view of the photographic apparatus according to the second embodiment of the present invention, taken along line G-G of fig. 9.

Fig. 13 is a perspective view of a base station used in a camera device according to a second embodiment of the present invention.

Fig. 14 is an exploded perspective view of a camera according to a third embodiment of the present invention, viewed from an oblique upper perspective.

Fig. 15 is an exploded perspective view of a camera according to a third embodiment of the present invention, viewed obliquely from below.

Fig. 16 is a sectional view of a camera according to a third embodiment of the present invention, cut out in a plane.

Fig. 17 is a sectional view of the third embodiment of the present invention, taken along line H-H of fig. 16.

Fig. 18 is a sectional view of the third embodiment of the present invention, taken along line I-I of fig. 16.

Fig. 19 is a sectional view of a third embodiment of the camera device according to the present invention, taken along line J-J of fig. 16.

Fig. 20 is a perspective view of a camera according to a third embodiment of the present invention, with a lens and a cover removed.

Fig. 21 is an enlarged oblique view of a portion K in fig. 20, showing a camera device according to a third embodiment of the present invention.

Fig. 22 is a perspective view of an adjustment device used in a camera device according to a third embodiment of the present invention.

Fig. 23 is an exploded perspective view of a camera according to a fourth embodiment of the present invention, viewed from an oblique upper perspective.

Fig. 24 is an exploded perspective view showing a first mover used in a camera according to a fourth embodiment of the present invention, viewed from an oblique upper view.

Fig. 25 is an exploded perspective view showing a first mover used in a camera according to a fourth embodiment of the present invention, viewed from an oblique lower perspective.

Fig. 26 is an exploded perspective view showing a part of a stator used in a camera device according to a fourth embodiment of the present invention, viewed from an obliquely upper perspective.

Fig. 27 is a perspective view showing a flexible printed circuit board used in a camera device according to a fourth embodiment of the present invention.

Fig. 28 is an X-direction cross-sectional view showing a first mover used in a camera according to a fourth embodiment of the present invention.

Fig. 29 is a cross-sectional view in the Y direction showing a first mover used in a camera according to a fourth embodiment of the present invention.

Fig. 30 is a sectional view showing the periphery of an X-ray support device in a camera device according to a fifth embodiment of the present invention.

Fig. 31 is a sectional view showing the periphery of a Y-holder in a camera device according to a fifth embodiment of the present invention.

Fig. 32 is a sectional view showing the periphery of an X-ray support device in a camera device according to a sixth embodiment of the present invention.

Fig. 33 is a sectional view showing the periphery of the Y-holder in the camera device according to the sixth embodiment of the present invention.

Fig. 34 is an XY-direction cross-sectional view showing an X-support device in a camera device according to a seventh embodiment of the present invention.

Fig. 35 is an XY-direction cross-sectional view showing an X-support device in a camera device according to an eighth embodiment of the present invention.

[ notation ] to show

10 photographic device

12a first lens body

12b second lens body

14 lens driving device

16a first mover

16b second mover

18 stator

20a first lens support

20b second lens support

22 frame body

24 base station

26 cover

28a first through hole

28b second through hole

28c third through hole

28d fourth through hole

29 baffle plate

30a first lens mounting hole

30b second lens mounting hole

32a first opening

32b second opening

34a first Flexible printed Circuit Board (first FPC)

34b second Flexible printed Circuit Board (second FPC)

36a first coil

36b second coil

38a first position detector

38b second position detector

40a first magnetic part

40b second magnetic component

42a first magnet fixing groove

44a first magnet

44b second magnet

46a first Z support device

46b second Z support device

48a first Z support

48b second Z support

50a first Z guide

50b second Z guide

52 bottom surface portion

54 lower fixing part

56 upper side fixing part

58 is inserted into the hole

60 first contact part

62 second contact part

64 projecting part

66 third contact part

68 imaginary triangle

70a first engaging part

70b second engaging part

72a first engaged part

72b second engaged part

74 Ribs

76 adjustment device

78 guide plate

80 push receiving member

82 urging member

84 first sheet metal part

86 second metal plate part

88 screw hole

90 push receiving plate

92 push-receiving part

94 inclined bearing part

96 inclined receiving part

98 support screw thread part

100a first intermediate

100b second intermediate

102 upper metal plate

104 lower metal plate

106 upper side rib

108. 110, 112 opening

114 XY support device

116X strutting arrangement

118Y supporting device

120X support part

122X guide part

124Y support part

126Y guide part

128 mounting part

130 mounting hole

132 mounted part

134X drive magnet

136Y drive magnet

138X magnetic component

140Z driving magnet

142 terminal

144X drive coil

146Y drive coil

148Z driving coil

150X position detector

152Y position detector

154Z position detector

[ detailed description ] embodiments

The following describes embodiments of the present invention with reference to the drawings.

Fig. 1 to 8 show a camera 10 according to a first embodiment of the present invention. The camera apparatus 10 includes a plurality of lens bodies, such as a first lens body 12a and a second lens body 12b, and a lens driving device 14 that drives the first lens body 12a and the second lens body 12 b.

In the lens driving device 14, the first lens body 12a side and the second lens body 12b side have the same configuration, and therefore the second lens body 12b side is omitted in fig. 3 to 8.

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 body 20a that supports the first lens body 12 a. And the second mover 16b has a second lens support 20b that supports the second lens body 12 b. The stator 18 is provided with a frame 22 surrounding the first mover 16a and the second mover 16 b. The frame 22 is formed in a rectangular square shape, and the first lens support 20a and the second lens support 20b are arranged in parallel in the frame 22.

The frame 22 has a base 24 and a cover 26. The base 24 and the cover 26 are made of resin or nonmagnetic metal, respectively, and the cover 26 is fitted to the outside of the base 24 to constitute the frame 22. The cover 26 is formed with a first through hole 28a and a second through hole 28b for allowing light to pass therethrough or for inserting the first lens body 12a and the second lens body 12 b. Similarly, a third through hole 28c and a fourth through hole 28d are formed in the base 24. The base 24 is provided with a spacer 29 for spacing the first lens support 28a from the second lens support 20b, but the spacer 29 may be omitted.

In this specification, the optical axis direction of the first lens body 12a and the second lens body 12b is referred to as a Z direction, a direction orthogonal to the Z direction or the optical axis direction is referred to as an X direction, and a direction orthogonal to the Z direction and the X direction is referred to as a Y direction. The object on the optical axis is referred to as an upper side, and the opposite side on which an image sensor not shown in the drawing is disposed is referred to as a lower side.

The first lens support 20a and the second lens support 20b are made of resin, circular first lens mounting holes 30a and second lens mounting holes 30b are formed inside the first lens support 20a and the second lens support 20b as viewed in the Z direction, and the first lens body 12a and the second lens body 12b are mounted on the upper surfaces of the first lens mounting holes 30a and the second lens mounting holes 30 b.

A first opening 32a and a second opening 32b are formed in parallel on one side surface of the base 24 in the longitudinal direction. A first flexible printed circuit board (hereinafter, referred to as a first FPC)34a and a second flexible printed circuit board (hereinafter, referred to as a second FPC)34b are disposed outside the base 24 so as to surround the first opening 32a and the second opening 32b, respectively. The first coil 36a and the second coil 36b are fixed to the center of the inner surfaces of the first FPC34a and the second FPC34b, and the first position detector 38a and the second position detector 38b are fixed to either the left or right side of the first coil 36a and the second coil 36 b. The first position detector 38a and the second position detector 38b are connected to the corresponding first FPC34a and second FPC34b, respectively, so that current can be supplied through the first FPC34a and second FPC34 b. The first coil 36a and the second coil 36b are formed of a straight portion and a semicircular portion, and can pass a current in the + X direction and the-X direction. The first position detector 38a and the second position detector 38b are each composed of a hall element and a drive 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 changes in magnetic flux density from a first magnet 44a and a second magnet 44b, which will be described later. The first and second coils 36a and 36b and the first and second position detectors 38a and 38b face the inside of the base 24 through the first and second openings 32a and 32 b.

Further, a first magnetic member 40a and a second magnetic member 40b made of magnetic materials are disposed outside the first FPC34a and the second FPC34 b. The first magnetic member 40a and the second magnetic member 40b are fixed to the base 24 with the first FPC34a and the second FPC34b interposed therebetween.

On the other hand, a first magnet fixing groove 42a and a second magnet fixing groove (not shown) are formed on the side surfaces of the first lens support 20a and the second lens support 20b facing the first opening 32a and the second opening 32 b. 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 are formed in a long rectangular shape in the X direction, and N-stage and S-stage magnets are arranged in the Z direction. The first magnet 44a and the second magnet 44b are opposed to the first coil 36a, the first position detector 38a, the second coil 36b, and the second position detector 38b, respectively, in the Y direction. The first magnet 44a and the second magnet 44b are opposed to the first magnetic member 40a and the second magnetic member 40b with the first FPC34a and the second FPC34b and the first coil 36a and the second coil 36b interposed therebetween. The first magnet 44a and the second magnet 44b act on the first magnetic member 40a and the second magnetic member 40b with attraction force in the Y direction. Thereby, the first lens support 20a and the second lens support 20b of the lens 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.

The first lens support 20a and the second lens support 20b are supported by a first Z support mechanism 46a and a second Z support mechanism 46b, and are movable in the Z direction with respect to the frame 22. The first Z support device 46a is constituted by 2 first Z support portions 48a, 48a provided on the frame 22 and 2 first Z guide portions 50a, 50a provided on the first lens support 20 a. The second Z support device 46b is also composed of 2 second Z support portions 48b, 48b provided on the frame 22 and 2 second Z guide portions 50b, 50b provided on the second lens support body 20 b.

The first Z support portions 48a, 48a and the second Z support portions 48b, 48b are made of ceramic, metal, or resin, and in the first embodiment, a columnar portion extending in the Z direction is formed. The first Z support portions 48a, 48a and the second Z support portions 48b, 48b are located inside the side surfaces on the magnets 44a, 44b side, are spaced apart in the X direction, and are provided near the corners of the base 24 and near the corners of the spacer 29, respectively.

The first Z support portions 48a, 48a and the second Z support portions 48b, 48b are circular in the XY-direction cross section, but may be a part of a circle, or may be an oval or polygonal shape other than a circle.

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

In the above embodiment, the first Z support portions 48a, 48a are inserted into the lower fixing portions 54, 54 and the insertion holes 58, 58 of the first magnetic member 40a for fixing, but the lower fixing portions 54, 54 or the insertion holes 58, 58 are designed to be slightly larger, and at least one side of the first Z support portions 48a, 48a may have some clearance with respect to the lower fixing portions 54, 54 or the insertion holes 58, or a positional deviation of the first Z support portions 48a, 48a may occur. Alternatively, the lower fixing portions 54, 54 or the upper fixing portions 56, 56 may have elasticity.

As shown in fig. 5 and 6, one side of the first Z guide portions 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. 3, the first contact portion 60 and the second contact portion 62 form circular hole portions, and one side of the first Z support portion 48a, 48a is inserted into both hole portions. In the XY-direction cross section of the first Z support portion 48a, the first contact portion 60 and the second contact portion 62 are in contact with the outer faces of one side of the first Z support portions 48a, 48a in the 360-degree circumferential direction, respectively.

As shown in fig. 3, the other side of the first Z guide 50a, 50a is composed of 2 wall surfaces facing each other in the Y direction in the cross section in the XY direction. As shown in fig. 7, the first Z guide portion 50a is formed with protruding portions 64, and the wall surfaces on both sides protrude toward the first Z support portion 48a in a curved surface shape. The center of the protruding portions 64, 64 is a third contact portion 66 that contacts the first Z support portion 48a, and the third contact portion 66 makes 2-point contact with the first Z support portion 48a in the Y direction, thereby reducing frictional resistance. As shown in fig. 8, 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, the center of the first contact portion 60 and the second contact portion 62).

The first lens support body 20a is supported at three points of the first contact portion 60, the second contact portion 62, and the third contact portion 66. This allows easy handling even when the first Z support portions 48a, 48a are slightly displaced. In fig. 8, 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 is located at the center of the first magnet 44a in the Z direction. As described later, since the lorentz force acts on the first magnet 44a when the first coil 36a is supplied with current, the first magnet 44a is disposed so that the center of gravity of the triangle formed by the first contact portion 60, the second contact portion 62, and the third contact portion 66 is included, whereby the force for tilting the first support 20a in the direction of the first Z support portions 48a, 48a is reduced, and the first support 20a can be smoothly moved.

The first Z support portions 48a, 48a are explained here, but the structures of the Z support portions 48b, 48b are also the same.

As shown in fig. 2 and 3, the first lens support 20a and the second lens support 20b have 2 first engaging portions 70a and 2 second engaging portions 70b and 70b formed on the Y-direction opposing magnet side and linearly extending in the Z direction. The base 24 is formed with a first engaged portion 72a and a second engaged portion 72b, which extend linearly in the Z direction and engage with the first engaging portions 70a, 70a and the second engaging portions 70b, 70 b. Unnecessary rotation about the optical axis can be prevented by the first and second engaging portions 70a, 70b and the first and second engaged portions 72a, 72 b. As shown in fig. 3, a slight gap is provided 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 72 b. The first Z support portions 48a, 48a and the second Z support portions 48b, 48b are maintained in contact with the first Z guide portions 50a, 50a and the second Z guide portions 50b, 50b at least 2 points in the Y direction, so that the first lens support body 20a and the second lens support body 20b hardly move even when external impact is applied. Since the first Z support portions 48a and the second Z support portions 48b and 48b extend in the Z direction, even if the first lens support body 20a and the second lens support body 20b move and return to the frame 22 side, they can be prevented from being damaged by local force.

In the above configuration, if one of the first and second coils 36a and 36b arranged between the first and second magnets 44a and 44b and the first and second magnetic members 40a and 40b, in which the magnetic flux in the Y direction is present, is energized, the current in the X direction flows into the first or second coil 36a or 36b, and the first or second coil 36a or 36b generates the lorentz force in the Z direction according to fleming's left hand rule. Since the first coil 36a and the second coil 36b are fixed to the base 24, the reaction of the first magnet 44a or the second magnet 44b generates 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 46a or the second Z support 46 b.

As a driving force, F > (μ 1 × N1+ μ 2 × N2) + W can be used. In the formula, N: attraction force by magnet (N — N1+ N2), μ 1: coefficient of friction between one side of the first Z support and one side of the first Z guide or one side of the second Z support and one side of the second Z guide, μ 2: coefficient of friction between the other side of the first Z support and the other side of the first Z guide or between the other side of the second Z support and the other side of the second Z guide, W: the total weight of the first mover (the first lens body and the first lens support) or the second mover (the second lens body and the lens support).

If the energization of the first coil 36a or the second coil 36b is stopped, the first lens support 20a or the second lens support 20b is stopped at the position where the energization is stopped by the attractive force of the first magnet 44a or the second magnet 44b and the friction between the first Z support 48a, 48a and the first Z guide 50a, 50a or between the second Z support 48b, 48b and the second Z guide 50b, 50 b.

It is assumed again that the photographic apparatus 10 is subjected to an impact in the-Y direction. When the impact in the-Y direction is received, the first lens holder 20a and the second lens holder 20b will move in the + Y direction against the attractive force of the first magnet 44a and the second magnet 44 b. However, since the first Z guide portions 50a, 50a and the second Z guide portions 50b, 50b maintain contact in the Y direction without being separated from the first Z support portions 48a, 48a and the second Z support portions 48b, the first lens support body 20a and the second lens support body 20b hardly move even if external impact is applied. When the impact is applied, the first lens holder 20a and the second lens holder 20b generate a force to return to the-Y direction due to the attractive force generated by the first magnet 44a and the second magnet 44 b. Even in this case, the first Z guide portions 50a, 50a and the second Z guide portions 50b, 50b maintain contact with the first Z support portions 48a, 48a and the second Z support portions 48b, 48b in the Y direction, and therefore the first lens support body 20a and the second lens support body 20b hardly move even when an external impact is applied.

In this way, even if the first Z guide portions 50a, 50a or the second Z guide portions 50b, 50b are slightly deformed, the first Z support portions 48a, 48a and the second Z support portions 48b, 48b are formed in a shape extending in the Z direction, and therefore, a continuous force is generated in the Z direction, not a local force, but a continuous force is generated in the first Z support portions 48a, 48a and the second Z support portions 48b, 48 b. This prevents drastic operational changes such as the reciprocating operation of the first lens support 20a and the second lens support 20 b.

While the first embodiment described above supports both the first mover 16a and the second mover 16b by the Z support device, either the first mover 16a or the second mover 16b may be supported by another structure, for example, by a spring.

Fig. 9 to 13 show a camera 10 according to a second embodiment of the present invention.

The second embodiment differs from the first embodiment in that the first Z support portions 48a, 48b and the second Z support portion (not shown, only the first Z support portions 48a, 48b will be described below) are integrated with the base 24, and are further reinforced by the ribs 74, 74.

That is, the lower ends of the first Z support portions 48a and 48b extend in the Z direction from the bottom surface portion 52 of the base 24 integrally with the base 24. The first support portions 48a, 48a are connected and fixed by ribs 74, and the ribs 74, 74 extend in the Y direction and the X direction from the side surface of the base 24 and the partition 29 integrally with the base 24. The first Z support portion 48a on the one side and the first Z support portion 48a on the other side are connected and fixed by the ribs 74, 74 in different directions, and therefore, the present invention has a strong capability of coping with external impact.

The upper ends of the first Z support portions 48a, 48a are inserted into and fixed to insertion holes 58 formed in the upper fixing portion 56 of the first magnetic member 40a, as in the first embodiment.

In the second embodiment, the first Z support portions 48a, 48a are formed integrally with the base 24, but when the base 24 is made of resin and is formed by a metal mold, the metal mold can be pulled out in the Z direction. But it takes a great deal of thought to make the first opening 32a in the shape of a notch.

In the first embodiment, although one side of the first Z guide portions 50a, 50a is a through hole having a circular cross section, the one side of the first Z guide portions 50a, 50a is provided with a notch having an opening extending from the Y-direction end of the through hole in the Y-direction so as to avoid the rib 74. And preferably the width of the rib 74 is less than the diameter of the first Z support 48 a. That is, one side of the first Z support portion 48a, 48a has a circular portion of 180 ° or more at least a part of the outer face thereof. One side of the first Z guide portions 50a, 50a is in contact with one side of the first Z support portions 48a, 48a by at least 180 °. Thus, even if an external impact is applied, the first Z guide portions 50a and 50a do not move away from the first Z support portions 48a and 48 a. The other side of the first Z guide portions 50a, 50a may be the same as the other side of the first Z guide portions 50a, 50a of the first embodiment, in that the rib 74 extends in the X direction. The width of the rib 74 at this time is also equal to or smaller than the diameter of the other side of the first Z support portions 48a, 48 a. With this configuration, the second embodiment can also obtain the same effects as those of the first embodiment.

The same portions as those in the first embodiment are denoted by the same reference numerals, and description thereof is omitted.

Fig. 14 to 22 show a camera 10 according to a third embodiment of the present invention.

The third embodiment is different from the first embodiment in that an adjusting device 76 is provided to adjust the inclination angles of the first Z support portions 48a, 48a and the second Z support portions (not shown, only the first Z support portions 48a, 48a will be described below) with respect to the frame 22. Furthermore, with the design of the adjustment device 76, the first magnetic member 40a no longer needs to have a support function, and in the third embodiment, it is only a flat plate.

That is, the adjusting device 76 includes a guide plate 78, a pressure receiving member 80, and a pressing member 82. The guide plate 78 is fitted to the outside of the base 24 and fixed to the base 24. The pressure receiving member 80 is positioned 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 and 86 located at both ends of the first plate portion 84 and bent in the Y direction. Screw holes 88 are formed near both ends of the first plate portion 84 and at 4 positions of the second plate portions 86, 86.

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 ends of the pressing members 82 come into contact with the upper ends of the first Z-support portions 48a, 48a at positions slightly before the upper ends thereof in the X-direction and the Y-direction, respectively.

The pressing member 82 may be constituted not only by a screw but also by other means such as a cam.

The adjusting device 76 further includes a press receiving plate 90 extending in the X direction. The center portion of the press receiving plate 90 is integrated with the guide plate 78. The pressure receiving portions 92, 92 are formed at both ends of the pressure receiving plate 90. The pressure receiving portions 92, 92 are elastic at substantially 45 degrees with respect to the X direction and the Y direction. The pressure receiving portions 92, 92 are disposed at substantially 45 degrees to the respective pressing members 82 on the opposite side of the pressing members 82, and contact the first Z supporting portions 48a, 48a to press the first Z supporting portions 48a, 48a against the pressing members 82.

As shown in fig. 17 to 19, the adjusting device 76 includes inclined receiving portions 94 and 94. The tilt receiving portions 94, 94 are formed in a hemispherical shape recessed in the inner surface of the bottom surface portion 52 of the base 24. On the other hand, hemispherical inclined receiving portions 96, 96 are formed at the lower ends of the first Z-supporting portions 48a, 48 a. The inclined receiving portions 96, 96 are fitted into the inclined receiving portions 94, 94 to be in contact therewith. Therefore, the first Z support portions 48a, 48a can be inclined in the X θ and Y θ directions with the inclined portions 96, 96 as fulcrums.

The adjusting device 76 also has support spring portions 98, 98 that support the upper ends of the first Z-support portions 48a, 48 a. 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 and 48a are supported by the support spring portions 98 and 98, and are freely movable in 360 degrees.

In the above configuration, if the pressing member 82 is rotated, the pressing member 82 tilts toward X θ and Y θ against the pressure receiving portions 92 and 92, and the first Z support portions 48a and 48a tilt toward X θ and Y θ against the pressure receiving portions 92 and 92 with the tilt receiving portions 96 and 96 as fulcrums. If the first Z support portions 48a, 48a are tilted about the tilted portions 96, 96 as fulcrums, the first Z support portions 48a, 48a are supported by the pressing member 82, the pressing receiving portions 92, and the support spring portions 98, and therefore the tilting is maintained.

Such tilt adjustment of the first Z support portions 48a, 48a can be performed before shipment of the lens drive device 14, and the tilt of the first lens support 20a or the second lens support 20b with respect to the frame 22 is adjusted to reduce the variation in the tilt of the first lens body 12a or the second lens body 12b in the optical axis direction. After the adjustment is completed, the tilt receiving portion 94 and the to-be-tilted receiving portion 96 are preferably fixed by an adhesive. The first Z support portions 48a, 48a are preferably further fixed with an adhesive to contact portions between the pressing members 82, the pressing receiving portions 92, and the support spring portions 98, 98.

The same portions as those in the first and second embodiments are denoted by reference numerals, and description thereof is omitted.

In the first to third embodiments, the first and second coils 36a, 36b and the first and second magnets 44a, 44b may be interchanged in position. 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 and the second magnets 44b and 44b are fixed to the stator 18. At this time, other components are appropriately rearranged to achieve an optimum state.

Fig. 23 to 29 show a camera 10 according to a fourth embodiment of the present invention.

This fourth embodiment is different from the first to third embodiments in that it can move not only in the Z direction but also in the XY direction.

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

The first mover 12a and the second mover 12b have the same structure, and therefore the first mover 12a will be described below.

As shown in fig. 24 and 25, the first mover 12a includes a first intermediate body 100a surrounding the first lens support 20. The first intermediate body 100a has an upper side plate 102, a lower side plate 104, and an upper cover 106. The first lens support 20a, the upper side plate 102, and the lower side plate 104 are made of engineering plastics such as Liquid Crystal Polymer (LCP), polyacetal, polyamide, polycarbonate, modified polystyrene, or polybutylene terephthalate. And the upper side cover 106 is made of metal. The upper side plate 102, the lower side plate 104 and the upper cover 106 have light-transmitting openings 110, 112 and 108 formed therein, respectively. The openings 110, 112, 108 are each formed in a generally circular shape.

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 freely moved in the XY directions by the XY support device 114.

The XY support 114 is composed of an X support 116 and a Y support 118 spaced in the Z direction. The X support device 116 is designed to be located below the Z direction, and as shown in fig. 28 and 29, includes an X support portion 120 formed to protrude from the lower surface of the upper side plate 102, and an X guide portion 122 formed to be recessed from the upper surface of the lower side plate 106, and the X support portion 120 is fitted into 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 4 corners of the upper plate 102 and the lower plate 104. Since the X support portion 120 and the X guide portion 122 extending in the X direction fit in the Y direction and restrict the movement, the upper side plate 102 is movable only in the X direction with respect to the lower side plate 104. The X support portion 120 and the X guide portion 122 are surrounded by 3 orthogonal lines in a cross section (see fig. 29) cut in the Z direction along the Y direction, and are in surface contact with 3 planes (opposing side surfaces and lower surfaces) in the X direction.

The Y support device 118 is designed to be located upward in the Z direction, and as shown in fig. 28 and 29, is configured by a Y support portion 124 formed by protruding the upper surface of the upper side plate 102 and a Y guide portion 126 formed by recessing the lower surface of the first lens support 20a, and the Y support portion 124 is fitted into 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 4 corners of the first lens support 20a and the upper side plate 102. Since the Y support 124 and the Y guide 126 extending in the Y direction fit in the X direction and restrict the movement, the first lens support 20a is movable only in the Y direction with respect to the upper side plate 102. The Y support portion 124 and the Y guide portion 126 are surrounded by 3 orthogonal lines in a cross section (see fig. 28) cut in the Z direction along the X direction, and are in surface contact with 3 planes (opposing side surfaces and upper surface) in the Y direction.

The upper cover 106 has mounting portions 128 at four corners thereof and extends downward in the Z direction. The mounting portion 128 is formed with a mounting hole 130 having a quadrangular shape. In addition, attached portions 132 are formed at four corners of the lower side plate 104 so as to protrude laterally. The mounting hole 130 is fitted into the mounted portion 132, and the upper cover 106 is fixed to the lower plate 104. As shown in fig. 28 and 29, a minimum necessary gap is formed between the lower surface of the upper cover 106 and the upper surface of the first lens support 20a, and the movement of the first lens support 20a or the upper plate 102 in the Z direction with respect to the lower plate 104 is restricted by including an error due to a tolerance or the like.

An X drive magnet 134 is fixed to a surface on the opposite-to-spacer side in the X direction and a Y drive magnet 136 is fixed to one surface in the Y direction outside the first lens support 20 a. The X drive magnet 134 forms S-stage and N-stage in the X direction. The Y drive magnet 136 on one side in the Y direction is formed into S-stage and N-stage in the Y direction.

An X magnetic member 138 made of a magnetic material is provided on the lower surface of the lower plate 104. The X magnetic member 138 faces the X driving magnet 134 in the Z direction with the lower plate 104 interposed therebetween, and generates an attractive force with the X driving magnet 134. Therefore, the first lens support 20a and the upper plate 102 are attracted by sandwiching the lower plate 104 therebetween, and the X support 120 and the X guide 122 and the Y support 124 and the Y guide 126 are ensured to be in contact with each other in the Z direction.

The Z drive magnet 140 is fixed to the lower plate 104 on the outer surface of the surface opposite to the surface on which the Y drive magnet 136 is provided in the Y direction. The Z drive magnet 140 is divided into 2 pieces in the Z direction, and S-stage and N-stage magnets are formed in the Y direction, respectively, and the polarities thereof are opposite to each other.

On the other hand, the X drive magnet 134 is not provided on the spacer 29 side, even on the second lens support 20b side. If provided, it is preferably provided on either the first lens support 20a side or the second lens support 20b side.

As shown in fig. 26, first openings 32a are formed in 3 side surfaces of the base 24. When the device is installed, the first opening 32a is surrounded, and the first FPC34a surrounds the outside of the base 24. That is, as shown in fig. 26 and 27, the first FPC34a surrounds the outer shape of the base 24, is bent コ, and is provided with a terminal portion 142 at the lower portion thereof.

An X driving coil 144 is fixed to one surface in the X direction and a Y driving coil 146 is fixed to one surface in the Y direction inside the first FPC34 a. The Z drive coil 148 is fixed to the other surface of the first FPC34a in the Y direction on the inner side. Further, an X position detector 150 is disposed on the middle side of the X driving coil 144, a Y position detector 152 is disposed on the middle side of the Y driving coil 146, and a Z position detector 154 is disposed on the side of the Z driving coil 148 inside the first FPC34 a.

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

Since the Z-supporting device and the driving structure in the Z-direction in the fourth embodiment are the same as those in the first embodiment, the same reference numerals are attached to the drawings, and the description thereof will be omitted. The Z supporting means and the driving mechanism in the Z direction are provided between the base 24 and the lower side plate 104 of the first intermediate body 100 a.

In the above configuration, if a current is applied to the X drive coil 144 facing the X drive magnet 134 in which a Z-direction magnetic flux exists, a current flows in the Y direction into the X drive coil 144, and the X drive coil 144 generates a lorentz force in the X direction according to fleming's left hand rule. Since the X-drive coil 144 is fixed to the base 24, a reaction force acting on the X-drive magnet 134 serves as a driving force for the first lens support 20a and the upper side plate 102. The first lens support 20a and the upper plate 102 move in the X direction while being supported by the X support device 116.

Here, as shown in fig. 29, assuming that the driving force in the X direction is Fx

Fx>μx1(Nx1+Wx1)+μx2(Nx2+Wx2)

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

Here, μ X1 and μ X2 are coefficients of friction between the X support portion 120 and the X guide portion 122, Wx1 and Wx2 are loads applied to the X support portion 120, and Nx1 and Nx2 are forces applied to the X support portion 120 by an attractive force between the X drive magnet 134 and the X magnetic member 138. And also

N + Wx ═ (Nx1+ Wx1) + (Nx2+ Wx2), and Fx can be represented by the following formula.

Fx＝μx(N+Wx)

However, μ x is an average value of μ x1 and μ x 2.

When current is supplied to the Y drive coil 146 opposed to the Y drive magnet 136 having Z-direction magnetic flux, X-direction current flows into the Y drive coil 146, and lorentz force is generated in the Y drive coil 146 according to fleming's left hand rule. Since the Y drive coil 146 is fixed to the base 24, a reaction force acting on the Y drive magnet 146 becomes a driving force for the first lens support 20 a. The first lens support 20a is moved in the Y direction while being supported by the Y support device 118.

Here, as shown in fig. 6, assuming that the driving force in the Y direction is Fy, the driving force in the Y direction is

Fy>μy1(Ny1+Wy1)+μy2(Ny2+Wy2)

The first lens support 20a can be driven in the Y direction.

Here, μ Y1 and μ Y2 are friction coefficients between the Y support 124 and the Y guide 126, Wy1 and Wy2 are loads applied to the support 124, and Ny1 and Ny2 are forces applied to the Y support 124 by an attractive force between the X drive magnet 134 and the X magnetic member 138. N + Wy is (Ny1+ Wx1) + (Ny2+ Wy2), and Fy can be represented by the following formula.

Fy＝μy(N+Wy)

However, μ y is an average value of μ y1 and μ y 2.

After the first lens support 20a is moved in either the X direction or the Y direction, if the energization of the X driving coil 144 is stopped, the first lens support 20a stops at a position where the energization is stopped due to the attraction between the X driving magnet 134 and the magnetic member 138 and the friction between the X support 120 and the X guide 122 and between the Y support 124 and the Y guide 126.

Here, it is assumed that the photographic apparatus 10 is subjected to an impact in the-Y direction. When an impact is applied from the-Y direction, the first lens support 20a and the upper plate 102 move in the + Y direction against the attractive force between the X drive magnet 134 and the magnetic member 138. However, since the first lens support 20a and the upper side plate 102 are supported by the X support device 116 and restricted from moving in the Y direction, they are not separated from each other and hardly move even when an external impact is applied. When the impact is applied, the first lens support 20a and the upper plate 102 generate a force in the return-Y direction due to the attraction force generated by the X drive magnet 134 and the X magnetic member 138. Even if the X support portion 120 is kept in contact with the X guide portion 122 in this way, the first lens support body 20a and the upper side plate 102 hardly move even if an external impact is applied. With respect to the impact in the X direction, the first lens support 20a is guided by the X support device 116 while the X support portion 120 is kept in contact with the X guide portion 122, and moves only with respect to the upper side plate 102. Further, even if the impact in the Z direction is applied, the X support portion 120 and the X guide portion 122 are likely to be kept in contact with each other, but even if the X support portion is separated, the impact is received by the front surface when the X support portion is returned at an appropriate time, so that the degree of damage is small, and smooth movement of the first lens support body 20a can be ensured. The Y support 118 also functions, and thus the second lens support 20 b.

In addition, since the X support unit 116 and the Y support unit 118, the X support unit 120 and the X guide unit 122, and the Y support unit 124 and the Y guide unit 126 are respectively fitted in the X direction and the Y direction to be independent support units, even if the X support unit and the Y support unit are simultaneously driven in the XY direction, no force is applied in the rotational direction, and the first lens support body 20a can be prevented from vibrating in the rotational direction.

While in the fourth embodiment, the X-support 116 is formed between the upper plate 102 and the lower plate 104 and the Y-support 118 is formed between the first lens support 20a and the upper plate 102, the X-support 116 may be formed between the first lens support 20a and the upper plate 102 and the Y-support 118 may be formed between the upper plate 102 and the lower plate 104.

Fig. 30 and 31 show a fifth embodiment of the present invention.

The fifth embodiment differs from the fourth embodiment in the structure of the X support device 116 and the Y support device 118.

That is, in the X support device 116, the lower surface side of the X support portion 120 protrudes in an arc shape. Therefore, in the cross section in the Z direction shown in fig. 30, the side surfaces of the X support portion 120 and the X guide portion 122 are in line contact, and the bottom surface is in point contact. In the X direction, the side surfaces are in plane contact, and the bottom surfaces are in line contact. The upper surface side of the Y support portion 124 is formed in an arc shape. Therefore, in the cross section in the Z direction shown in fig. 31, 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.

In this way, 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 frictional force can be reduced as compared with the fourth embodiment.

The same portions as those of the fourth embodiment are denoted by the same reference numerals, and description thereof is omitted.

Fig. 32 and 33 show a sixth embodiment of the present invention.

The sixth embodiment differs from the fourth and fifth embodiments in the structure of the X support device 116 and the Y support device 118.

That is, in the X support device 116, the lower surface and the side surface of the X support portion 120 protrude in an arc shape. Therefore, in the Z-direction cross section shown in fig. 32, the side surfaces and the bottom surfaces of the X support portion 120 and the X guide portion 122 are point-contacted. In the X direction, 3 points of the side surface and the bottom surface constitute line contact. The upper surface and the side surface of the Y support portion 124 protrude in an arc shape. Therefore, in the Z-direction cross section shown in fig. 33, the side surfaces and the bottom surfaces of the Y support portion 124 and the Y guide portion 126 are point-contacted. In the X direction, 3 points of the side surface and the bottom surface constitute point contact. In the sixth embodiment, two side surfaces in the Z direction are point-contacted, but only one side surface may be point-contacted.

In this way, 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 make point contact at 3 points, and therefore, the frictional force can be further reduced as compared with the fifth embodiment.

The same portions as those in the fourth and fifth embodiments are denoted by the same reference numerals, and description thereof is omitted.

Fig. 34 shows a seventh embodiment of the present invention.

In the seventh embodiment, the X support portion 120 has a linear side surface, but the X guide portion 122 protrudes in a curved surface shape. Therefore, the X support portion 120 and the X guide portion 122 form point contact in the XY-direction cross section.

Fig. 35 shows an eighth embodiment of the present invention.

In the eighth embodiment, the X guide portion 122 has a linear side surface, but the X support portion 120 protrudes in a curved surface shape. Therefore, the X support portion 120 and the X guide portion 122 form point contact in the XY-direction cross section.

In the above description of the embodiment, 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 combined as appropriate.

In the fourth embodiment, the intermediate body is provided on the first mover 16a and the second mover 16b, and the XY support device is provided on the first mover 16a and the second mover 16a, but the intermediate body may be provided on the stator 18, the XY support device may be provided on the stator side, and the Z support device may be provided on the first mover 16a and the second mover 16 b. 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. The first mover 16a and the second mover 16b may be supported by using a plate spring or the like. XY support means may be further provided on the first mover 16a, Z support means may be provided on the second mover 16b, and only Z support means may be further provided on the first mover 16 a.

In the first to eighth embodiments, the same support means is used for the first mover 16a and the second mover 16b, but the present invention is not limited thereto, and different support means may be used. The supporting device described in the first to eighth embodiments may be used for one of the first mover 16a and the second mover 16b, and the other may be supported by a plate spring or the like. The X direction and the Y direction are opposite to each other and may be replaced with each other.

Further, although the above embodiment has been described with respect to the camera device in which 2 lens bodies are designed, the present invention can be applied to a camera device in which 3 or more lens bodies are designed.

Claims (18)

1. A lens driving device, comprising, in an XYZ orthogonal coordinate system:

a first mover including a first lens support for supporting a first lens body, the first mover being in an optical axis direction of the first lens body in a Z direction;

a second mover including a second lens support for supporting a second lens body, the second mover being arranged in parallel with the first mover, and the Z direction being an optical axis direction of the second lens body;

a stator including a frame surrounding the first mover and the second mover;

a Z support device that supports at least one of the first lens support and the second lens support relative to the frame so as to be movable in the Z direction;

characterized in that the Z supporting means includes a Z supporting portion provided on the stator, and a Z guide portion provided on at least one of the first mover and the second mover, the Z supporting portion extending in the Z direction and being in contact with at least 2 points of the Z guide portion on a cross section in the XY direction.

2. The lens driving device according to claim 1, further comprising an XY support device that supports at least one of the first lens support body and the second lens support body with respect to the frame to be freely movable in an X direction and a Y direction, the XY support device comprising:

an X supporting device arranged on one side of the Z direction; and

the Y supporting device is arranged on the other side in the Z direction;

the X supporting device comprises an X supporting part and an X guiding part, wherein the X supporting part extends in the X direction, and the X supporting part is in point contact with at least 2 points of the X guiding part on a section in the YZ direction;

the Y supporting device comprises a Y supporting part extending in the Y direction and a Y guiding part, and the Y supporting part is in point contact with at least 2 points of the Y guiding part on the section of the XZ direction.

3. The lens driving device according to claim 2, wherein at least one of the first mover and the second mover includes an intermediate body that surrounds a periphery of at least one of the first lens support body and the second lens support body, the Z support device supports the intermediate body to be freely movable in the Z direction with respect to the frame 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 to be freely movable in the X direction and the Y direction with respect to the intermediate body.

4. The lens driving apparatus according to claim 2, wherein the stator includes an intermediate body surrounding a periphery of at least one of the first lens support body and the second lens support body, the frame surrounds the periphery of the intermediate body, the Z support portion is provided in the intermediate body, and the Z support portion supports the at least one of the first lens support body and the second lens support body to be freely movable in the Z direction with respect to the intermediate body; the XY support device supports the intermediate body, and is free to move in the X direction and the Y direction together with at least one of the first lens support and the second lens support relative to the frame.

5. The lens driving device according to claim 1, wherein the Z supporting 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 and brought into contact with the two hole portions.

6. The lens driving device according to claim 1, wherein the Z supporting portion includes a columnar portion extending in the Z direction, and the Z guide portion includes a curved protrusion portion protruding toward the Z supporting portion, the protrusion portion being in contact with the columnar portion.

7. The lens driving device according to claim 1, wherein two Z supporting means are provided separately in a direction orthogonal to the Z direction.

8. The lens driving device according to claim 1, further comprising an adjusting device that adjusts an inclination angle of the Z support with respect to the frame.

9. The lens driving device according to claim 1, characterized in that the lens driving device further comprises:

a first driving device that drives the first lens support;

a second driving device that drives the second lens support;

the first driving device comprises a first coil arranged on the frame and a first magnet arranged opposite to the first coil;

the second driving device includes a second coil disposed on the frame, and a second magnet disposed to face the second coil;

the first magnet and the second magnet disposed between the first lens support and the second lens support are disposed at most only one of them.

10. A lens driving device, comprising, in an XYZ orthogonal coordinate system:

a first mover including a first lens support for supporting a first lens body, the first mover being in an optical axis direction of the first lens body in a Z direction;

a second mover including a second lens support for supporting a second lens body, the second mover being arranged in parallel with the first mover, the Z direction being an optical axis direction of the second lens body;

a stator including a frame surrounding the first mover and the second mover;

an XY support device which supports at least one of the first lens support and the second lens support relative to the frame and moves freely in the XY directions,

it is characterized in that

The XY-support device includes:

an X supporting device arranged on one side of the Z direction; and

the Y supporting device is arranged on the other side in the Z direction; the X supporting device comprises an X supporting part and an X guiding part, wherein the X supporting part extends in the X direction, and the X supporting part is in point contact with at least 2 points of the X guiding part on a section in the YZ direction; the Y supporting device comprises a Y supporting part extending in the Y direction and a Y guiding part, and the Y supporting part is in point contact with at least 2 points of the Y guiding part on the section of the XZ direction.

11. The lens driving device according to claim 10, wherein at least one of the first mover and the second mover includes an intermediate body disposed 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 to be freely movable relative to the intermediate body in the X direction and the Y direction.

12. The lens driving device according to claim 10, wherein the mover includes an intermediate body that surrounds a periphery of at least one of the first lens support body and the second lens support body, the frame surrounds a periphery of the intermediate body, and the XY support device supports the intermediate body to be freely movable in the X direction and the Y direction together with the at least one of the first lens support body and the second lens support body with respect to the frame.

13. The lens driving device according to claim 10, wherein the X supporting portion protrudes, the X guide portion is recessed, and the X supporting portion is fitted into the X guide portion;

the Y supporting part protrudes, the Y guide part is sunken, and the Y supporting part is embedded into the Y guide part.

14. The lens driving device according to claim 10, comprising an intermediate body disposed around at least one of the first and second lens supports, the intermediate body including an upper side plate and a lower side plate, the Y supporting means being formed between the upper side plate and at least one of the first and second lens supports, and the X supporting means being formed between the upper side plate and the lower side plate.

15. The lens driving device as claimed in claim 10, wherein the lens driving device includes an intermediate body disposed around at least one of the first and second lens supporting bodies, the intermediate body including an upper side plate and a lower side plate, the Y supporting means being formed between the upper side plate and the lower side plate, and the X supporting means being formed between the lower side plate and the bottom surface of the frame.

16. The lens driving device according to claim 10, further comprising:

a first driving device that drives the first lens support;

a second driving device that drives the second lens support;

the first driving device comprises a first coil arranged on the frame and a first magnet arranged opposite to the first coil;

the second driving device includes a second coil disposed on the frame, and a second magnet disposed to face the second coil;

the first magnet and the second magnet disposed between the first lens support and the second lens support are disposed at most only one of them.

17. A camera device, characterized by comprising the lens driving device of any one of claims 1 to 16, the first lens body supported by the first lens support, and the second lens body supported by the second lens support.

18. An electronic device characterized by comprising the photographic apparatus according to claim 17.