CN111751955B

CN111751955B - Lens driving device, camera device and electronic equipment

Info

Publication number: CN111751955B
Application number: CN201910248892.XA
Authority: CN
Inventors: 萩原一嘉
Original assignee: New Shicoh Motor Co Ltd
Current assignee: New Shicoh Motor Co Ltd
Priority date: 2019-03-29
Filing date: 2019-03-29
Publication date: 2025-01-03
Anticipated expiration: 2039-03-29
Also published as: CN111751955A

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

Lens driving device, camera device and electronic equipment

[ Field of technology ]

The invention relates to a lens driving device, a camera device and an electronic device.

[ Background Art ]

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), such a compact camera is widely known as a lens driving device in which 2 or more lenses are arranged side by side so as to be individually moved.

[ Invention ]

[ Problem to be solved by the invention ]

In patent document 1, there are two lens supports supporting lenses and a frame provided around the two lens supports, and a plurality of balls are used for each lens support to be movable toward the frame. In the conventional lens driving device, a magnet is provided, a magnetic member is provided opposite to the magnet, and a ball is sandwiched between a lens support and a frame by 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 drop or the like, the lens support is separated from the sphere, and then the lens support is again brought into contact with the sphere, the frame in point contact with the sphere is impacted, the sphere contact portion may be depressed, and cracks may be generated, so that smooth movement of the lens support cannot be ensured. Furthermore, there are a plurality of lens supports, and there is a high possibility that a problem will occur in supporting the lens supports.

The present invention is directed to a lens driving device, a photographing device, and an electronic apparatus including a plurality of lens supports, which can eliminate the above-described existing problems and ensure smooth movement of the respective lens supports.

[ Means for solving the problems ]

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

The 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 in an XYZ orthogonal coordinate system in a Z direction as an optical axis direction, a second mover including a second lens support for supporting a second lens body arranged in parallel with the first mover in 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 and the second lens support to be movable in the XY direction with respect to the frame, wherein the XY support device includes 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 includes an X support portion and an X guide portion extending in the X direction, the X support portion contacts at least 2 points of the X guide portion in a section in the YZ direction, and the Y support device includes a Y support portion extending in the Y direction and a Y guide portion extending in the Y direction, and at least one point of the Y guide portion contacting the Y guide portion in the Z direction.

[ Effect of the invention ]

According to the present invention, since the Z support portion or the XY support portion extends in the Z direction or the XY direction, and the Z support portion or the XY support portion is in contact with at least 2 points of the Z guide portion or the X or Y guide portion in the XY direction, the impact applied to 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 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 photographic apparatus according to a first embodiment of the present invention from an obliquely upward view.

Fig. 2 is an exploded perspective view of the photographic apparatus according to the first embodiment of the present invention from an obliquely downward view.

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

Fig. 4 is a sectional view taken along line A-A in fig. 3, showing a photographic apparatus according to a first embodiment of the present invention.

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

Fig. 6 is a sectional view taken along line C-C of fig. 3, showing a photographic apparatus according to a first embodiment of the present invention.

Fig. 7 is a sectional view taken along line D-D in fig. 3, showing a photographic apparatus according to a first embodiment of the present invention.

Fig. 8 is a side view showing a photographic apparatus according to a first embodiment of the present invention, with a frame removed.

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

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

Fig. 11 is a cross-sectional view taken along line F-F in fig. 9, showing a photographic apparatus according to a second embodiment of the present invention.

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

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

Fig. 14 is an exploded perspective view of a photographic apparatus according to a third embodiment of the present invention from an obliquely upward view.

Fig. 15 is an exploded perspective view of a photographic apparatus according to a third embodiment of the present invention from an obliquely downward view.

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

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

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

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

Fig. 20 is a perspective view showing a photographic apparatus according to a third embodiment of the present invention, in which a lens and a cover are removed.

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

Fig. 22 is a perspective view of an adjusting device used in a photographic apparatus according to a third embodiment of the present invention.

Fig. 23 is an exploded perspective view of a photographic apparatus according to a fourth embodiment of the present invention from an obliquely upward view.

Fig. 24 is an exploded perspective view of a first mover used in a photographic apparatus according to a fourth embodiment of the present invention.

Fig. 25 is an exploded perspective view of a first mover used in a photographic apparatus according to a fourth embodiment of the present invention from an obliquely downward perspective.

Fig. 26 is an exploded perspective view of a part of a stator used in a photographic apparatus according to a fourth embodiment of the present invention.

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

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

Fig. 31 is a cross-sectional view showing the periphery of a Y-supporting device in a photographic apparatus according to a fifth embodiment of the present invention.

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

Fig. 33 is a cross-sectional view showing the periphery of a Y-supporting device in a photographic apparatus according to a sixth embodiment of the present invention.

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

Fig. 35 is a cross-sectional view in XY directions showing an X-supporting device in a photographic apparatus according to an eighth embodiment of the present invention.

[ Symbolic description ]

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. Partition board

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 component

40B second magnetic component

42A first magnet fixing groove

44A first magnet

44B second magnet

46A first Z support

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 fixing part

58. Insertion hole

60. A first contact part

62. A second contact part

64. Protruding part

66. Third contact portion

68. Virtual triangle

70A first bite

70B second bite

72A first engaged portion

72B second engaged portion

74. Ribs

76. Adjusting device

78. Guide plate

80. Push-and-pull receiving member

82. Pressing member

84. A first metal plate part

86. A second metal plate part

88. Threaded hole

90. Push-and-press bearing plate

92. Push-and-press receiving part

94. Inclination receiving part

96. Is inclined and received by the part

98. Support screw part

100A first intermediate

100B second intermediate

102. Upper side metal plate

104. Lower metal plate

106. Upper side rib

108. 110, 112 Openings

114 XY supporting device

116 X-support device

118 Y supporting device

120 X support part

122 X guide part

124 Y support part

126 Y guide part

128. Mounting part

130. Mounting hole

132. Mounted part

134 Magnet for X driving

136 Magnet for Y driving

138 X-magnetic component

140 Magnet for Z driving

142. Terminal for connecting a plurality of terminals

144 Coil for X driving

146 Coil for Y driving

148 Coil for Z driving

150 X position detector

152 Y-position detector

154 Z position detector

[ Detailed description ] of the invention

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

Fig. 1 to 8 show a photographic apparatus 10 according to a first embodiment of the present invention. The photographing device 10 has 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 structure, and therefore, the second lens body 12b side is omitted in fig. 3 to 8.

The lens driving device 14 includes 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 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 each made of resin or a nonmagnetic metal, and the cover 26 is fitted to the outside of the base 24 to form 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 that separates 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 of the optical axis is referred to as an upper side, and the side on which an image sensor, not shown in the figure, is disposed on the opposite side is referred to as a lower side.

The first lens support 20a and the second lens support 20b are made of resin, and 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 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.

The first opening 32a and the second opening 32b are formed in parallel on one side surface of the base 24 in the longitudinal direction. A first flexible printed board (hereinafter, first FPC) 34a and a second flexible printed board (hereinafter, 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 inner surfaces of the first FPC34a and the second FPC34b at the center, and the first position detector 38a and the second position detector 38b are fixed to either the left or right of the first coil 36a and the second coil 36 b. The first and second position detectors 38a and 38b are connected to the corresponding first and second FPCs 34a and 34b, respectively, so that they can supply current through the first and second FPCs 34a and 34 b. The first coil 36a and the second coil 36b are constituted by a straight line portion and a semicircular portion, and can flow a current in the +x direction and the-X direction. The first position detector 38a and the second position detector 38b are constituted by hall elements and a driving circuit that drives the hall elements. 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 a change in magnetic flux density from a first magnet 44a and a second magnet 44b 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 32b.

Further, a first magnetic member 40a and a second magnetic member 40b made of a magnetic material 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, first magnet fixing grooves 42a and second magnet fixing grooves (not shown) are formed in 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 are arranged in the Z direction in the N and S stages. The first magnet 44a and the second magnet 44b are opposed to the first coil 36a and the first position detector 38a, and 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 attractive force in the Y direction of the first magnet 44a and the second magnet 44b acts on the first magnetic member 40a and the second magnetic member 40 b. Thus, the lens first lens support 20a and the second lens support 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.

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 so as to be movable in the Z direction with respect to the frame 22. The first Z-support 46a is composed of 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 body 20 a. The second Z-support 46b is also composed of 2 second Z-support sections 48b, 48b provided on the frame 22 and 2 second Z-guide sections 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, cylindrical portions extending in the Z direction are formed. The first Z support portions 48a, 48a and the second Z support portions 48b, 48b are located inside the side surfaces of the magnets 44a, 44b, are spaced apart in the X direction, and are provided near the corners of the base 24 and near the corners of the diaphragm 29, respectively.

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

That is, as shown by the first Z supporting portions 48a and 48a in fig. 5 to 7, 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 and 54 are provided on both inner sides of the bottom surface portion 52 to form cylindrical grooves, and lower ends of the first Z supporting portions 48a and 48a are inserted into the lower fixing portions 54 and 54 to be fixed. The upper ends of the first magnetic members 40a are 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, 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 48a, and the number of components is reduced as compared with the case where the supporting members are separately provided, and the first Z supporting portions 48a and 48a can be stably supported.

In the above embodiment, the first Z supporting portions 48a, 48a are inserted into the lower fixing portions 54, 54 and the insertion holes 58, 58 of the first magnetic member 40a to be fixed, 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 supporting portions 48a, 48a may have some clearance with respect to the lower fixing portions 54, 54 or the insertion holes 58, or the first Z supporting portions 48a, 48a may be offset, as long as it is possible to cope with this. Or the lower fixing portions 54, 54 or the upper fixing portions 56, 56 may be made elastic.

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

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 XY direction cross section. As shown in fig. 7, the first Z guide 50a is formed with protruding portions 64, and both side walls protrude in a curved surface shape toward the first Z support 48 a. The centers of the protruding portions 64, 64 are a third contact portion 66 that contacts the first Z support portion 48a, and the third contact portion 66 contacts the first Z support portion 48a at 2 points in the Y direction, thereby reducing the 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 centers 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. Thus, even when the first Z supporting portions 48a, 48a have a certain positional deviation, it can be easily handled. In fig. 8, the first contact portion 60, the second contact portion 62, and the third contact portion 66 form a virtual triangle 68 (in this embodiment, an isosceles triangle) as shown by two-dot chain lines. 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 current flows through the first coil 36a, the force in the direction of tilting the first Z support portions 48a and 48a is reduced by including 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 when the first magnet 44a is disposed, and the first support body 20a can be smoothly moved.

The first Z-support portions 48a, 48a are described herein, but the structure of the Z-support portions 48b, 48b is also the same.

As shown in fig. 2 and 3, the first lens support 20a and the second lens support 20b are formed with 2 first engaging portions 70a, 70a and 2 second engaging portions 70b, 70b on the Y-direction antimagnet side, and extend in a straight line in the Z-direction. The first engaged portion 72a and the second engaged portion 72b are formed on the base 24, and extend in a straight line in the Z direction so as to engage between 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 engaged portions 70a, 70b and the first and second engaged portions 72a, 72 b. As shown in fig. 3, a plurality of gaps are designed in the Y direction between the end surface of the first lens support 20a and the first engaged portion 72a between the first engaged portions 70a, and between the end surface of the second lens support 20b and the second engaged portion 72b between the second engaged portions 70b, 70 b. The first and second Z support portions 48a, 48b maintain contact with the first and second Z guide portions 50a, 50b at least 2 points in the Y direction, so the first and second lens supports 20a, 20b hardly move even if they are subjected to an external impact. Further, since the first Z support portions 48a, 48a and the second Z support portions 48b, 48b extend in the Z direction, even if the first lens support body 20a and the second lens support body 20b move back toward the frame 22 side, the damage can be prevented by local force.

In the above configuration, the first coil 36a and the second coil 36b arranged between the first magnet 44a and the second magnet 44b, and the first magnetic member 40a and the second magnetic member 40b, and when one of them is energized, current in the X direction flows into the first coil 36a or the second coil 36b, and the first coil 36a or the second coil 36b generates lorentz force in the Z direction according to fleming's left hand. 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 forms 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 is moved in the Z direction while being supported by the first Z support 46a or the second Z support 46 b.

While the driving force is mentioned, the driving force F is F > (μ1×n1+μ2×n2) +W, which can be dealt with. Wherein N is an adsorption force (N=N1+N2) generated by the magnet, mu 1 is a 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, mu 2 is a 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, and W is a 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).

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 portion 48a, 48a and the first Z guide portion 50a, 50a or between the second Z support portion 48b, 48b and the second Z guide portion 50b, 50 b.

Again, assume that the camera 10 receives an impact in the-Y direction. When the impact in the-Y direction is applied, the first lens support 20a and the second lens support 20b are moved 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 do not leave the first Z support portions 48a, 48a and the second Z support portions 48b, but maintain contact in the Y direction, the first lens support body 20a and the second lens support body 20b hardly move even if an external impact is received. When the impact is applied, the first lens support 20a and the second lens support 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, since 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, 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 shaped to extend in the Z direction, so that a continuous force is not locally generated in the first Z support portions 48a, 48a and the second Z support portions 48b, but is generated along the Z direction. Thus, the reciprocation of the first lens support 20a and the second lens support 20b and the like do not undergo a drastic change in operation.

In the first embodiment, the first mover 16a and the second mover 16b are supported by the Z supporting means, but one of the first mover 16a and the second mover 16b may be supported by other structures, for example, by a spring.

Fig. 9 to 13 show a photographic apparatus 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 and 48b and the second Z support portion (not shown; only the first Z support portions 48a and 48b will be described below) are integrated with the base 24 and further reinforced by the ribs 74 and 74.

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

The upper ends of the first Z supporting portions 48a and 48a are inserted into the insertion holes 58 formed in the upper fixing portions 56 of the first magnetic member 40a and fixed 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 manufactured by a mold, the mold can be pulled out in the Z direction. But it takes a great deal of time to make the first opening 32a into a slit shape.

In the first embodiment, one side of the first Z guide portions 50a, 50a is a through hole having a circular cross section, but in order to avoid the rib 74, one side of the first Z guide portions 50a, 50a is provided with a slit having an opening extending in the Y direction from the Y direction end of the through hole. 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 supporting parts 48a, 48a has a circular portion of 180 ° or more at least a part of the outer surface thereof. Further, one side of the first Z guide portions 50a, 50a is in contact with one side of the first Z support portions 48a, 48a at least 180 °. Thus, even if an external impact is applied, one side of the first Z guide portions 50a, 50a does not separate from one side of the first Z support portions 48a, 48 a. The other side of the first Z guide portions 50a, 50a extends the rib 74 in the X direction, and thus may be the same as the other side of the first Z guide portions 50a, 50a of the first embodiment. The width of the rib 74 is also equal to or smaller than the diameter of the other side of the first Z-support 48a, 48 a. With this configuration, in the second embodiment, the same effects as those of the first embodiment can be obtained.

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

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

The third embodiment differs from the first embodiment in that an adjusting device 76 is provided to adjust the inclination angle of the first Z support portions 48a and the second Z support portion (not shown; only the first Z support portions 48a and 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 supporting function, but is merely a flat plate in the third embodiment.

That is, the adjusting device 76 includes a guide plate 78, a pressing receiving member 80, and a pressing member 82. The guide plate 78 is shaped to be fitted to the outside of the base 24 and fixed to the base 24. The pressing receiving member 80 is positioned on the first magnet 44a side and fixed to the base 24. The pressing receiving member 80 includes a first plate portion 84 extending in the X direction, and second plate portions 86, 86 bent in the Y direction at both ends of the first plate portion 84. Screw holes 88 are formed near both ends of the first plate portion 84 and at 4 portions of the second plate portions 86, respectively.

In the third embodiment, the pressing member 82 is constituted by an adjusting screw. The pressing member 82 is screwed into a screw hole 88 of the pressing receiving member 80. The distal ends of the pressing members 82 contact the upper ends of the first Z supporting portions 48a, 48a in the X direction and the Y direction, respectively.

The pressing member 82 may be constituted by other means such as a cam, in addition to a screw.

The adjustment device 76 further includes a pressing receiving plate 90 extending in the X direction. The center portion of the pressing receiving plate 90 is integrated with the guide plate 78. The pressing receiving portions 92, 92 are formed at both ends of the pressing receiving plate 90. The pressing force receiving portions 92, 92 are substantially 45 degrees with respect to the X direction and the Y direction, and have elasticity. The pressing receiving portions 92, 92 are substantially 45 degrees to the pressing members 82 on the opposite side of the pressing members 82, contact the first Z supporting portions 48a, and 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 inclination receiving portions 94, 94. The inclined receiving portions 94, 94 are formed in hemispherical shapes recessed in the inner surface of the bottom surface 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 fit into and contact the inclined receiving portions 94, 94. For this reason, the first Z supporting portions 48a, 48a may be inclined in the X θ, Y θ directions with the inclined portions 96, 96 as fulcrums.

The adjustment device 76 further includes support spring portions 98, 98 for supporting 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 this 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. For this purpose, the first Z support portions 48a, 48a are supported by the support spring portions 98, and are free to move 360 degrees.

In the above configuration, when the pressing member 82 is rotated, the pressing member 82 resists the pressing receiving portions 92, and the first Z supporting portions 48a, 48a tilt toward xθ, yθ about the inclined receiving portions 96, 96 as the supporting points, against the pressing receiving portions 92, 92. If the first Z support portions 48a, 48a are inclined with the inclined 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, so that the inclination is maintained.

Such adjustment of the tilt of the first Z support portions 48a, 48a can be performed before shipment of the lens driving device 14, and the tilt of the first lens support body 20a or the second lens support body 20b with respect to the frame 22 can be adjusted, thereby reducing the deviation of the tilt of the first lens body 12a or the second lens body 12b in the optical axis direction. After the adjustment, the inclined receiving portion 94 and the inclined receiving portion 96 are preferably fixed with 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.

In the same parts as those of the first and second embodiments, only the reference numerals are given, and the description thereof is omitted.

In the first to third embodiments, the first and second coils 36a and 36b are interchangeable with the first and second magnets 44a and 44 b. 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, the other components are appropriately reconfigured to achieve the optimum state.

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

The 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 direction 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, so 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 side 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, deformed polystyrene, and polybutylene terephthalate. And the upper cover 106 is made of metal. The upper side plate 102, the lower side plate 104 and the upper side cover 106 are respectively formed with light-transmitting openings 110, 112 and 108. The openings 110, 112, 108 each form 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 114, and the first lens support 20a is freely movable in the XY directions by the XY support 114.

The XY support 114 is composed of an X support 116 and a Y support 118 that are separated in the Z direction. The X support device 116 is designed to be arranged below in the Z direction, and as shown in fig. 28 and 29, is composed of an X support portion 120 protruding from the lower surface of the upper side plate 102, and an X guide portion 122 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 side plate 102 and the lower side plate 104. Since the X support 120 and the X guide 122 extending in the X direction fit in the Y direction to restrict movement, the upper side plate 102 is free to move only in the X direction relative to the lower side plate 104. The X support 120 and the X guide 122 are surrounded by 3 orthogonal lines in a cross section (see fig. 29) cut along the Y direction in the Z direction, and are in surface contact with each other in 3 planes (opposing side surfaces and lower surfaces) in the X direction.

The Y-support device 118 is designed to be arranged above in the Z-direction, and as shown in fig. 28 and 29, is configured to have a Y-support portion 124 protruding from the upper surface of the upper side plate 102 and a Y-guide portion 126 recessed from the lower surface of the first lens support body 20a, and the Y-support portion 124 is fitted into the Y-guide portion 126. The Y support 124 and the Y guide 126 extend in the Y direction and are formed near the 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 movement, the first lens support 20a is free to move only in the Y direction with respect to the upper side plate 102. The Y support 124 and the Y guide 126 are surrounded by 3 orthogonal lines in a cross section (see fig. 28) cut along the X direction and the Z direction, and are in surface contact with each other in 3 planes (opposing side surfaces and upper surfaces) in the Y direction.

Mounting portions 128 are provided at four corners of the upper cover 106, and extend downward in the Z direction. The mounting portion 128 is formed with a rectangular mounting hole 130. Further, attachment 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 gap is formed between the lower surface of the upper cover 106 and the upper surface of the first lens support body 20a, and movement of the first lens support body 20a or the upper side plate 102 in the Z direction with respect to the lower side plate 104 is restricted, including errors due to tolerances and the like.

An X-driving magnet 134 is fixed to the surface of the first lens support 20a on the side of the counter plate in the X direction, and a Y-driving magnet 136 is fixed to one surface in the Y direction. The X-drive magnet 134 forms S-stage and N-stage in the X-direction. The Y-driving magnet 136 on one surface in the Y direction forms S-stage and N-stage in the Y direction.

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

Further, the lower side plate 104 is fixed with a Z-drive magnet 140 on the outer 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 blocks in the Z direction, and is formed into S-stage and N-stage in the Y direction, respectively, with polarities thereof being opposite from each other.

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 preferable to provide either one of the first lens support 20a side or the second lens support 20b side.

As shown in fig. 26, first openings 32a are formed in each of the 3 side surfaces of the base 24. When the mounting is performed, 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 into コ, and has a terminal portion 142 provided 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 on the inner side of the first FPC34 a. The Z-drive coil 148 is fixed to the other surface of the first FPC34a in the Y-direction. Further, an X position detector 150 is disposed on the inner side of the first FPC34a, a Y position detector 152 is disposed on the middle side of the X driving coil 144, and a Z position detector 154 is disposed on the side of the Z driving coil 148.

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-support device and the Z-direction driving structure of the fourth embodiment are the same as those of the first embodiment, the same reference numerals are attached to the drawings, and the description thereof is omitted. But the Z-support means and the Z-direction driving structure are disposed between the base 24 and the lower side plate 104 of the first intermediate body 100 a.

In the above configuration, if current is applied to the X-drive coil 144 facing the X-drive magnet 134 having the Z-direction magnetic flux, current in the Y-direction flows into the X-drive coil 144, and the X-drive coil 144 generates 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 acts as a driving force for the first lens support 20a and the upper side plate 102. The first lens support 20a and the upper side 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 (Nx 1+wx1) +μx2 (Nx 2+wx2)

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

Here, μx1 and μx2 are friction coefficients between the X support 120 and the X guide 122, wx1 and Wx2 are loads applied to the X support 120, and Nx1 and Nx2 are forces applied to the X support 120 by attractive forces between the X driving magnet 134 and the X magnetic member 138. And

N+wx= (Nx 1+wx1) + (Nx 2+wx2), and Fx may be represented by the following formula.

Fx=μx(N+Wx)

However, μx is the average of μx1 and μx2.

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

Here, assuming that the driving force in the Y direction is Fy, as shown in fig. 6, fy > μy1 (ny1+wy1) +μy2 (ny2+wy2)

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

Here, μy1 and μy2 are friction coefficients between the Y support portion 124 and the Y guide portion 126, 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 attractive forces between the X drive magnet 134 and the X magnetic member 138. Further, n+wy= (ny1+wx1) + (ny2+wy2), and Fy may be represented as the following formula.

Fy=μy(N+Wy)

However, μy is the average of μy1 and μy2.

When the power supply to the X-drive coil 144 is stopped after the first lens support 20a moves in either the X-direction or the Y-direction, the first lens support 20a is stopped at the position where the power supply is stopped by the attractive force between the X-drive 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 the first lens support 20a and the upper side plate 102 receive an impact from the-Y direction, the first lens support moves in the +y direction against the attractive force between the X-driving magnet 134 and the magnetic member 138. However, the first lens support 20a and the upper side plate 102 are supported by the X support 116 and are restricted from moving in the Y direction, so that they do not separate from each other and hardly move even if an external impact is applied. After the impact, the first lens support 20a and the upper side plate 102 generate a force in the return-Y direction due to the attractive force generated by the X drive magnet 134 and the X magnetic member 138. Even then, the X support 120 remains in contact with the X guide 122, and the first lens support 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 in a state where the X support 120 is kept in contact with the X guide 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 120 and the X guide 122 are easily kept in contact, but even if they are separated, the impact is received by the surface when they return, so that the damage degree is small, and smooth movement of the first lens support 20a can be ensured. The Y-support 118 also acts similarly, as does the second lens support 20 b.

In addition, since the X support device 116 and the Y support device 118 are independent support devices in which the X support portion 120 and the X guide portion 122 and the Y support portion 124 and the Y guide portion 126 are embedded in the X direction and the Y direction, respectively, even if the XY direction is simultaneously driven, no force acts in the rotation direction, and the first lens support body 20a can be prevented from vibrating in the rotation direction.

While in the fourth embodiment described above, the X-support 116 is formed between the upper side plate 102 and the lower side plate 104 and the Y-support 118 is formed between the first lens support 20a and the upper side plate 102, the X-support 116 may be formed between the first lens support 20a and the upper side plate 102 and the Y-support 118 may be formed between the upper side plate 102 and the lower side 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 116 and the Y support 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 Z-direction cross section 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 124 is projected in an arc shape. Therefore, in the Z-direction cross section 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 surface is 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 friction force can be reduced as compared with the fourth embodiment.

The same reference numerals are given to the same parts as those of the fourth embodiment, and the description thereof will be omitted.

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

The sixth embodiment is different 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 in point contact. In the X direction, 3 points of the side face and the bottom face constitute line contact. The upper surface and the side surface of the Y support 124 are projected 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 in point contact. In the X direction, 3 points of the side face and the bottom face constitute point contacts. 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.

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 point contact with each other at 3 points, so that the friction force can be further reduced as compared with the fifth embodiment.

The same reference numerals are given to the same parts as those of the fourth and fifth embodiments, and the description thereof will be 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 120 and the X guide 122 form a 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 122 has a linear side surface, but the X support 120 protrudes in a curved surface shape. Therefore, the X support 120 and the X guide 122 form a point contact in the XY-direction cross section.

While the convex portion is formed as the support portion and the concave portion is formed as the guide portion in the description of the above embodiment, the convex portion may be formed as the guide portion and the concave portion may be formed as the support portion. The structures of the fourth to eighth embodiments may be appropriately combined.

In the fourth embodiment, the intermediate is provided to the first mover 16a and the second mover 16b, and the XY support device is provided to the first mover 16a and the second mover 16a, but the intermediate may be provided to the stator 18, the XY support device may be provided to the stator side, and the Z support device may be provided to the first mover 16a and the second mover 16 b. In this case, the X support 116 may be formed between the lower plate 104 and the bottom surface 52 of the base 24 of the frame 22, and the Y support 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 a leaf spring or the like. The first mover 16a may be provided with an XY support device, the second mover 16b may be provided with a Z support device, and the first mover 16a may be provided with only the Z support device.

In the first to eighth embodiments, the same supporting means is used for the first mover 16a and the second mover 16b, but the present invention is not limited to this, and different supporting means may be used. The support 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 used for another support, for example, a plate spring or the like. The X direction and the Y direction are opposite to each other and can be replaced with each other.

Further, although the above embodiment describes a photographic apparatus having 2 lens bodies, the present invention is applicable to a photographic apparatus having 3 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 comprises 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 so as to freely move in the X direction and the Y direction, and the XY supporting 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 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 is 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 is characterized in that the stator includes an intermediate body surrounding 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 is characterized in that the Z supporting portion includes a columnar portion extending in the Z direction, the Z guiding portion is formed as two hole portions spaced apart in the Z direction, and the columnar portion is inserted into the two hole portions and contacts therewith.

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

7 . The lens driving device according to claim 1 , wherein 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 , further comprising an adjusting device for adjusting an 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 further comprises:

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 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;

11. The lens driving device according to claim 10 is 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 free to move relative to the intermediate body in the X direction and the Y direction.

12. The lens driving device according to claim 10 is characterized in that the mover includes an intermediate body surrounding at least one of the first lens support body and the second lens support body, the frame surrounds the intermediate body, and the XY supporting 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, wherein 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 is 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 is 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 the upper side plate and the lower side plate, and the X support 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 further comprises:

A first driving device for driving the first lens support body;

A second driving device for driving the second lens support body;

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

18. An electronic device, comprising the camera device according to claim 17.