JP3365926B2 - Lens drive - Google Patents

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a lens driving device for optical equipment.

[0002]

2. Description of the Related Art Conventionally, products equipped with a mechanism for correcting optical image blur caused by camera shake in optical equipment such as still cameras and binoculars have been put into practical use. These image blur correction mechanisms correct the image blur by driving the correction lens in a direction that cancels the image blur in a plane perpendicular to the optical axis thereof. As such a correction mechanism, a coil, a permanent magnet, and a yoke are arranged at a predetermined position of a lens frame holding a correction lens, and the lens frame is driven by using an electromagnetic force generated by passing a current through the coil. The composition is known.

However, in order to correct the image blur, the lens frame has to be two-dimensionally moved in two directions orthogonal to the optical axis of the correction lens. Therefore, the image blur correction mechanism has a large space around the correction lens. However, there is a problem that the entire optical device becomes large.

[0004]

SUMMARY OF THE INVENTION The present invention is intended to solve the above problems, and it is an object of the present invention to reduce the size of a lens driving device such as an image blur correction mechanism.

[0005]

A lens driving device according to the present invention is a first driving means for driving a lens support frame holding a pair of lenses in a first direction within a plane perpendicular to the optical axis of the lenses. And a second drive means for driving in a second direction orthogonal to the first direction in the plane, the first drive means comprising:
The first coil, the first and second permanent magnets, and the first
A second drive means having a yoke and a second yoke;
The second coil, the third and fourth permanent magnets, and the first
It has a yoke and a third yoke, and the first yoke is
Hollow provided between a pair of lenses in the lens support frame
The first coil is disposed inside the holding part of
It is placed on one of a pair of flat parts perpendicular to the optical axis, and
And the second permanent magnet are arranged so as to face the first coil.
And the second yoke interposes the first and second permanent magnets.
And is disposed so as to face the first coil, and the second coil
Is placed on the other of the pair of flat parts, and the third and fourth
The permanent magnet is arranged to face the second coil,
The third yoke is connected to the second yoke via the third and fourth permanent magnets.
It is arranged so as to face the coil .

[0006]

[0007]

Preferably, the first and second coils are
This is a flat coil in which a conductor wire wound around an axis parallel to the optical axis of the lens has a small axial thickness.

[0009]

The first and second permanent magnets have, for example, a plate shape whose longitudinal direction extends in a direction orthogonal to the first direction, and the third and fourth permanent magnets have a longitudinal direction which is second. It has a plate shape extending in a direction orthogonal to the direction.

Further, the lens driving device according to the present invention has a lens support frame for holding a pair of lenses, and a first direction and a second direction in which the lens support frame is orthogonal to each other on a plane orthogonal to the optical axis of the lens. A lens driving device including a first driving unit and a second driving unit that are respectively driven in a direction, wherein a pair of lenses are provided between a pair of lenses in a lens support frame.
A hollow enclosure with a pair of flats along a plane orthogonal to the axis.
A holding portion is formed, and the first driving means is disposed in the holding portion.
Mounted on one of the pair of flat parts
The first coil is provided so as to face the first coil.
First and second permanent magnets, and first and second permanent magnets
A second drive means for supporting a magnet,
Is placed on the first yoke and the other of the pair of flat portions.
The second coil is provided so as to face the second coil.
Second and third permanent magnets, and second and third permanent magnets
And a third yoke for supporting the magnet .

For example, the lens is a correction lens for correcting image blur of an optical device.

[0013]

BEST MODE FOR CARRYING OUT THE INVENTION Embodiments of the present invention will be described below with reference to the drawings. In the present specification, "longitudinal" means a direction orthogonal to a plane including two optical axes extending in parallel, that is, a direction orthogonal to the paper surface of FIG. 1, and "lateral" means two optical axes extending in parallel. A direction parallel to a plane including and parallel to an axis orthogonal to the two optical axes, that is, a horizontal direction in FIG. FIG. 1 shows binoculars to which an embodiment according to the present invention is applied, with optical axes O of objective lenses 31 and 32 thereof.
FIG. 3 is a partial cross-sectional view taken along a plane horizontal to l and Or. The light flux that has passed through the pair of objective lenses 31 and 32 passes through the pair of correction lenses 21 and 22 and the pair of image inversion optical systems 41 and 42.
Be led to. The image inverting optical systems 41 and 42 are Porro prisms each of which is composed of two right-angle prisms to form an erect image. The light flux that has passed through the image inverting optical systems 41 and 42 is guided to the pair of eyepiece lenses 51 and 52. That is, the left telephoto optical system includes a correction lens 21, an objective lens 31, an image inverting optical system 41, and an eyepiece lens 51, and the right telephoto optical system includes a correction lens 22, an objective lens 32, an image inverting optical system 42, and an eyepiece lens 52. Become. Ol is the optical axis of the objective lens 31, Or
Represents the optical axis of the objective lens 32, and Ol ′ represents the eyepiece lens 5
The optical axis 1 and Or 'indicate the optical axis of the eyepiece lens 52.

The objective lens 31 is an objective lens barrel 31A.
In addition, the objective lens 32 is held by the objective lens barrel 32A. The objective lens barrel 31A has an optical axis Ol in the support hole 13B of the objective lens barrel support portion 13A of the left mirror body 13.
It is supported so as to be able to reciprocate along. Similarly, the objective lens barrel 32A is the objective lens barrel support portion 1 of the right mirror body 14.
It is supported in the support hole 14B of 4A so as to be capable of reciprocating along the optical axis Or.

The eyepiece lens 51 is an eyepiece lens barrel 51A.
The eyepiece lens 52 is held by the eyepiece lens barrel 52A. The eyepiece lens barrel 51A is fixed to the eyepiece lens barrel support portion 13D of the left mirror body 13 and has an eyepiece lens barrel 52A.
Is fixed to the eyepiece lens barrel support portion 14D of the right mirror body 14. The Porro prism of the image inverting optical system 41 is a prism chamber 13 provided between the objective lens barrel supporting portion 13A and the eyepiece lens barrel supporting portion 13D in the left mirror body 13.
It is located at C. Similarly, the Porro prism of the image inverting optical system 42 is disposed in the prism chamber 14C provided between the objective lens barrel support portion 14A and the eyepiece lens barrel support portion 14D in the right mirror body 14.

The prism chamber 13C of the left mirror body 13 and the right mirror body 1
The outer surfaces of the four prism chambers 14C facing each other are provided with meshing members (not shown), and mesh with each other.

Eyepiece lens barrel 51A and eyepiece lens barrel 5
A cylindrical rolling wheel 90 is arranged between 2A. A rolling wheel shaft 91 is fixed to the axis of the rolling wheel 90, and an elevating shaft 92 is screwed onto the rolling wheel shaft 91. The lifting shaft 92 is the left arm 9
3 is connected to the objective lens barrel 31A via 3 and is connected to the objective lens barrel 32A via the right arm 94.

When the roller wheel 90 is rotated, its rotational motion is transmitted to the elevator shaft 92 via the roller shaft 91, and the elevator shaft 92 is rotated.
Are driven along the optical axes Or and Ol. That is,
The rotation of the wheel 90 is converted into movement of the elevating shaft 92 along the optical axes Or and Ol. The movement of the elevating shaft 92 is performed by the objective lens barrel 31 through the left arm 93 in the left telephoto optical system.
A is similarly transmitted to the objective lens barrel 32A via the right arm 94 in the right telephoto system. Therefore, the objective lens barrels 31A and 32A are driven in conjunction with each other in response to the elevation shaft 92 being driven along the optical axes Ol and Or.

That is, the roller 90, the roller shaft 91, the lifting shaft 92, the arms 93 and 94, the objective lens barrel 31A, and the objective lens barrel 32A are an integrated unit for focusing. The pair of objective lens barrels 31A and 32A are synchronized with each other by rotating the optical axes Ol and Or.
Driven along. Therefore, the user can perform the focusing operation by rotating the wheel 90 by a predetermined amount clockwise or counterclockwise.

Further, the left mirror body 13 and the right mirror body 14 respond to the above-described change in the meshing position of the meshing members, so that the left mirror body 13 is changed.
Is rotated around the optical axis Ol of the objective lens 31, and the right mirror body 14 is rotated around the optical axis Or of the objective lens 32 in synchronization with the above-mentioned integrated unit for focusing. .
Since the left mirror body 13 and the right mirror body 14 are engaged with each other on the opposite side surfaces, when the left mirror body 13 rotates clockwise around the optical axis Ol, the right mirror body 14 rotates counterclockwise around the optical axis Or. When the left mirror 13 rotates in the counterclockwise direction around the optical axis Ol, the right mirror 14 rotates in the clockwise direction around the optical axis Or. By the rotation of the left mirror body 13 and the right mirror body 14 as described above,
The distance between the optical axes Ol 'and Or' changes and the interpupillary adjustment is performed.

In this specification, the "reference position" means
It indicates the position where the optical axes of the correction lenses 21 and 22 coincide with the optical axes of other optical systems such as the objective lens and the image inverting optical system.

FIG. 2 is a perspective view of the image blur correction mechanism of this embodiment. The lens support frame 20 includes correction lenses 21 and 22.
Holding units 20L and 20R for holding
It is composed of a connecting portion 20C that connects L and 20R. Holding part 2
Reference numerals 0L and 20R are flat plates that are provided at symmetrical positions and have a sufficient thickness to fix the correction lenses 21 and 22.

The holding portion 20L is provided on the left end surface of the holding portion 20L.
Holes 20a, 20b having a predetermined depth and extending in the axial direction parallel to a plane including the optical axes Ol, Or and at a twist position perpendicular to the optical axes Ol, Or toward the inside of the It is provided near the part. A similar hole is provided on the right end surface of the holding portion 20R (not shown).

The U-shaped guide bar 61 has lateral guide portions 61a and 61b whose axial directions are parallel to each other,
It is composed of a vertical guide portion 61c that connects the horizontal guide portions 61a and 61b. The axial length of the vertical guide portion 61c is substantially equal to the distance between the holes 20a and 20b of the holding portion 20L. The lateral guide portions 61a and 61b of the guide bar 61 are slidably inserted into the holes 20a and 20b, respectively.

Like the guide bar 61, the guide bar 62 has a lateral guide portion 62 whose axial directions are parallel to each other.
a and 62b, and a vertical guide portion 62c that connects the horizontal guide portions 62a and 62b, and has a U-shape. The axial length of the vertical guide portion 62c is substantially equal to the distance between the holes at the upper and lower ends of the holding portion 20R. Holding part 20R
The horizontal guide portion 6 of the guide bar 62 is provided in the holes at the upper and lower ends.
2a and the lateral guide portion 62b are slidably inserted.

That is, the lens support frame 20 is the guide bar 6
1 and 62, and the tips of the lateral guide portions 61a and 61b of the guide bar 61 are 20a and 2a, respectively.
0b and the lateral direction guide portions 62a and 62b of the guide bar 62 contact the bottoms of the holes at the upper and lower ends of the holding portion 20R, respectively, and can reciprocate laterally. .

The vertical guide portion 61c of the guide bar 61 is inserted through the projection portion 11 formed on the inner wall surface of the outer frame of the binoculars, and is supported by the projection portion 11 so as to be capable of reciprocating in the vertical direction. Similarly, the vertical guide portion 62c of the guide bar 62
Is inserted through the protrusion 12 formed on the inner wall surface of the outer frame, and is supported by the protrusion 12 so as to be reciprocally movable in the vertical direction.

The connecting portion 20C has a substantially hollow rectangular parallelepiped, and a first yoke 180 fixed to the inner wall surface (not shown) of the outer frame of the binoculars is disposed inside the connecting portion 20C. Connection part 2
At 0C, the first coil 161 is provided on the outer surface 20D that is perpendicular to the optical axes Ol and Or of the correction lenses 21 and 22. The first coil 161 includes correction lenses 21 and 22.
Is a flat coil in which a conductor wire wound around an axis parallel to the optical axes Ol and Or is thin in the axial direction. That is, in the first coil 161, the axial dimension of the conductor wire wound around the axis parallel to the optical axes Ol and Or is orthogonal to the plane orthogonal to the axial direction, that is, the optical axes Ol and Or. It is smaller than the dimension in the plane parallel to the plane. Further, a second coil 162 similar to the first coil 161 is provided on the outer side surface 20E on the back side of the outer side surface 20D as described later.

The second yoke 181 is a flat plate having substantially the same size and shape as the outer surfaces 20D and 20E of the connecting portion 20C. The first permanent magnet 1 is provided on the plane of the second yoke 181.
71a and the second permanent magnet 171b are attracted by magnetic force. The second yoke 181 includes the first permanent magnet 171.
a, the longitudinal direction of the second permanent magnet 171b is the guide bar 6
The first permanent magnet 171a and the second permanent magnet 171 extend along a direction orthogonal to the first vertical guide portion 61c.
It is fixed to the inner wall surface (not shown) of the outer frame of the binoculars so that b is opposed to the first coil 161.

The third yoke 182 is the second yoke 181.
Similar to the above, it is a flat plate having substantially the same size and shape as the outer surfaces 20D and 20E of the connecting portion 20C, and the third permanent magnet 172a and the fourth permanent magnet 172b are attracted to the flat surface by magnetic force. The third yoke 182 includes the third permanent magnet 1
72a, the longitudinal direction of the fourth permanent magnet 172b extends along a direction orthogonal to the lateral guide portions 61a, 61b of the guide bar 61, and the third permanent magnet 172a and the fourth permanent magnet 172b are described later. It is fixed to the inner wall surface of the outer frame of the binoculars so as to face the second coil 162.

FIG. 3 shows that the central portion of the connecting portion 20C of FIG. 2 is perpendicular to the plane containing the optical axes Or and Ol and the optical axes Or and O.
It is sectional drawing which cut | disconnects by the surface extended in parallel with 1, and shows the vicinity of the connection part 20C from the holding | maintenance part 20L side. The side of the first permanent magnet 171a attracted to the second yoke 181 is N
The pole, the side facing the first coil 161 is the S pole. The second permanent magnet 171b has an S pole on the side attracted to the second yoke 181, and an N pole on the side facing the first coil 161. That is, as shown in FIG. 3, the first coil 161 includes a first permanent magnet 171 a, a second permanent magnet 171 b, a first yoke 180, and a second yoke 18.
It is positioned at a position affected by the magnetic flux density.

Therefore, when a current is applied to the first coil 161 in the i1 direction (see FIG. 2), an electromagnetic force acts on the first coil 161 and the connecting portion 20C is driven in the y1 direction, that is, the lens support frame. 20 is driven in the same direction. Also,
When a current is applied to the first coil 161 in the i2 direction (see FIG. 2), an electromagnetic force acts on the first coil 161 and the connecting portion 2
0C is driven in the y2 direction, and the lens support frame 20 is driven in the same direction.

FIG. 4 is a sectional view showing the vicinity of the connecting portion 20C from above from the center portion of the connecting portion 20C of FIG. 2 taken along a plane including the optical axes Or and Ol. Third permanent magnet 172
a is the N pole on the side attracted to the third yoke 182, the second pole
The side facing the coil 162 is the south pole. The fourth permanent magnet 172b has an S pole on the side attracted to the third yoke 182, and an N pole on the side facing the second coil 162. That is, as shown in FIG. 4, the second coil 16
2 is a third permanent magnet 172a and a fourth permanent magnet 172
b, the first yoke 180, and the third yoke 182 are positioned at positions affected by the magnetic flux density.

Therefore, when a current is applied to the second coil 162 in the i1 direction (see FIG. 4), an electromagnetic force acts on the second coil 162, the connecting portion 20C is driven in the x1 direction, and the lens support frame 20 is moved. Are driven in the same direction. In addition, when a current is applied to the second coil 162 in the i2 direction (see FIG. 4), the second coil 162
The electromagnetic force acts on the coil 162 of the
The lens support frame 20 is driven in two directions, and is driven in the same direction.

In FIG. 2, a first hole 203 penetrating along the optical axis Ol of the correction lens 21 is formed near the lower end of the left end of the holding portion 20L. The first hole 203 is a long hole whose longitudinal direction of a cross-sectional shape cut along a plane perpendicular to the optical axis Ol extends parallel to the axial direction of the lateral guide portions 61a and 61b of the guide bar 61. A second hole 213 penetrating along the optical axis Or of the correction lens 22 is formed near the lower end of the right end of the holding portion 20R. The second hole 213 is a long hole whose cross-sectional shape cut along a plane perpendicular to the optical axis Or extends in a direction parallel to the axial direction of the vertical guide portion 62c of the guide bar 62.

The first LED 201 is the lens support frame 20.
Is disposed at a predetermined distance from and at a position corresponding to the first hole 203. First through the lens support frame 20
On the opposite side of the LED 201 of the first PS
D (Position Sensitive Devi
ce) 202 is provided. The first PSD 202 is provided with a pair of electrodes, and detects the position of the incident light from the ratio of the current values flowing through the electrodes according to the position of the incident light and outputs it as a position signal. Similarly, the second LED 211 is separated from the lens support frame 20 by a predetermined distance and the second hole 21
The second PSD 212 is arranged at a position corresponding to No. 3, and is provided on the opposite side of the second LED 211 with the lens support frame 20 interposed therebetween.
Is provided. First LED 201, second LED
211, the first PSD 202, and the second PSD 21
2 are fixed to the inner wall surface (not shown) of the outer frame of the binoculars.

The first LED 201 and the first PSD 202 are arranged so that the light flux emitted from the first LED 201 passes through the first hole 203 and reaches the first PSD 202. Therefore, the lens support frame 20 is attached to the guide bar 6
When the first vertical guide portion 61c and the vertical guide portion 62c of the guide bar 62 move in the vertical direction, the relative position of the first hole 203 with respect to the first LED 201 and the first PSD 202 changes. , Accordingly, the correction lens 2 for the reference position from the first PSD 202
The vertical position signals 1 and 22 are output.

Similarly, the second LED 211 and the second PSD 21 are arranged so that the luminous flux emitted from the second LED 211 passes through the second hole 213 and reaches the second PSD 212.
2 is provided. Therefore, when the lens support frame 20 is moved in the horizontal and vertical directions by being guided by the lateral guide portions 61a and 61b of the guide bar 61 and the lateral guide portions 62a and 62b of the guide bar 62, the second LED 211 and the second LED 211 and the second LED 211 and the second guide portion 62b are moved. The relative position of the second hole 213 with respect to the PSD 212 changes, and accordingly, the second PSD 212 outputs a lateral position signal of the correction lenses 21 and 22 with respect to the reference position.

FIG. 5 is a block diagram of a correction lens drive circuit for correcting the movement of the optical axis in the vertical direction in this embodiment. The correction lens drive circuit that corrects the movement of the optical axis in the lateral direction has the same configuration. An operation switch 350 is connected to the vertical direction integrator 344. The operation switch 350 is normally in the A position, and is manually switched to the B position when performing the shake correction drive. Operation switch 3
When 50 is in the A position, the first coil 161 operates to correct the correction lenses 21, 2 based on the output of the first PSD 202.
2 is energized so as to be positioned at the reference position. That is, by setting the operation switch 350 to the A position, the lens support frame 20 is controlled so that the correction lenses 21 and 22 are always positioned at the reference position.

The gyro sensor 340 detects the direction of movement of the binoculars due to camera shake and the angular velocity thereof, and outputs a voltage signal corresponding to them. Gyro sensor 34
A vertical direction integrator 344 is connected to 0, integrates and outputs the angular velocity voltage signal output from the gyro sensor 340, and outputs a voltage signal in the moving direction. When the user switches the operation switch 350 to the B position to perform the camera shake correction operation, the output signal of the vertical integrator 344 is input to the vertical error amplifier 345. On the other hand, the vertical positions of the correction lenses 21 and 22 are set to the first PSD 202.
Is detected by and output as a position signal.

The voltage signal relating to the movement of the binoculars output from the vertical integrator 344 and the position signal output from the first PSD 202 are compared and amplified by the vertical error amplifier 345, and the power is amplified by the vertical power amplifier 346. , A predetermined current is output. The first power coil 161 is connected to the vertical power amplifier 346, and the vertical power amplifier 34 is connected.
The current output from 6 flows in the first coil 161, and the lens support frame 20 is driven in a direction that cancels the movement of the optical axis due to the movement of the binoculars in the vertical direction. Also, the first P
A longitudinal differentiator 349 is connected to the SD202,
The driving of the lens support frame 20 is stabilized.

Similarly, in the correction lens drive circuit for correcting the movement of the optical axis in the horizontal direction, the second coil 162 includes the horizontal error amplifier, the horizontal power amplifier, and the second PSD 21.
2. A lateral differentiator is connected, and the lens support frame 20 is driven in a direction that cancels the movement of the optical axis in the lateral direction.

According to this embodiment, since the driving means for the correction lens is arranged along the optical axis of the correction lens, the space around the correction lens can be saved, and the driving means for the correction lens is The weight is well balanced because it is positioned between the left and right correction lenses.

Further, since some of the yokes for driving the lens supporting frame are shared by the vertical driving and the horizontal driving, the number of members can be reduced and the size can be reduced.

Further, since the coils having the same shape, that is, the flat coils having a substantially square shape are used in the drive mechanisms in the two directions orthogonal to each other, the yoke and the magnet having the same shape are used in the respective drive mechanisms. it can. In addition, coils for each drive, permanent magnets,
Since the relative arrangement of the yokes is the same, the two drive mechanisms can be used for the vertical drive and the horizontal drive, respectively, which is economical and the mounting work is easy.

Furthermore, in an optical device having a pair of optical systems, the pair of correction lenses are driven integrally, so that control is easy.

[0047]

As described above, according to the present invention, it is possible to miniaturize the lens driving device for driving the correction lens for correcting the image blur.

[Brief description of drawings]

FIG. 1 is a partial cross-sectional view of binoculars to which an embodiment of the present invention is applied.

FIG. 2 is a perspective view of an image blur correction mechanism according to an embodiment of the present invention.

FIG. 3 is a cross-sectional view of the image blur drive mechanism taken along the vertical direction.

FIG. 4 is a cross-sectional view taken along the lateral direction of the image blur drive mechanism.

FIG. 5 is a block diagram of an embodiment of the present invention.

[Explanation of symbols]

20 Lens support frame 21, 22 correction lens 31, 32 Objective lens 41, 42 Image inversion optical system 51, 52 eyepiece 61, 62 Guide bar 90 wheels 91 wheel axle 92 Lifting axis 161 first coil 171a First permanent magnet 171b Second permanent magnet 172a Third permanent magnet 172b Fourth permanent magnet 180 First York 181 second yoke 182 Third yoke

Continuation of front page (56) Reference JP-A-9-33972 (JP, A) JP-A-6-18970 (JP, A) JP-A-8-149777 (JP, A) JP-A-10-186437 (JP , A) JP-A-10-83007 (JP, A) JP-A-10-20213 (JP, A) (58) Fields investigated (Int.Cl. ⁷ , DB name) G03B 5/00

Claims (5)

(57) [Claims] 1. A first drive means for driving a lens support frame holding a pair of lenses in a first direction in a plane perpendicular to the optical axis of the lens, and the first direction in the plane. Second driving means for driving in a second direction orthogonal to each other, wherein the first driving means includes a first coil and first and second driving means.
2 permanent magnets, a first yoke and a second yoke
And said second drive means includes a second coil, the third and
No. 4, a permanent magnet, the first yoke, and a third yoke
And the first yoke includes the first yoke in the lens support frame.
Disposed inside a hollow holding part provided between a pair of lenses
And the first coil is connected to one of the holding coils which is perpendicular to the optical axis.
The first and second permanent magnets are mounted on one of the pair of flat portions, and the first and second permanent magnets are connected to the first coil.
The second yokes are arranged so as to face each other, and
And facing the first coil via a second permanent magnet
And the second coil is placed on the other of the pair of flat portions.
And the third and fourth permanent magnets are connected to the second coil.
The third yokes are arranged so as to face each other.
And facing the second coil via a fourth permanent magnet
A lens driving device characterized in that the lens driving device is arranged . 2. The first and second coils are flat coils in which a conductor wire wound around an axis parallel to the optical axis of the lens has a small axial thickness. Item 2. The lens driving device according to item 1. 3. The first and second permanent magnets each have a plate shape whose longitudinal direction extends in a direction orthogonal to the first direction, and the third and fourth permanent magnets each have a longitudinal direction. The lens drive device according to claim 2, wherein is a plate shape extending in a direction orthogonal to the second direction. 4. A lens supporting frame for holding a pair of lenses, and a first driving unit for driving the lens supporting frame in a first direction and a second direction orthogonal to each other on a plane orthogonal to the optical axis of the lens. And a second driving means, wherein a lens driving device is provided between the pair of lenses in the lens support frame.
Inside having a pair of plane portions along a plane orthogonal to the optical axis
An empty holding part is formed, and the first driving means is arranged in the holding part .
And a first one mounted on one of the pair of flat portions
Of the coil and the first coil.
The first and second permanent magnets, and the first and second permanent magnets
A second yoke for supporting a permanent magnet, wherein the second driving means includes the first yoke and the pair of
A second coil placed on the other of the flat surfaces of the
Second and third permanent magnets provided to face the coil of
A permanent magnet and a first magnet supporting the second and third permanent magnets.
3. A lens driving device, comprising: 5. The lens is a correction lens for correcting image blur of an optical device.
Alternatively, the lens driving device according to item 4 .