JP2014035477A - Image blur correction device and optical apparatus - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide an image blur correction device in which an electromagnetic actuator can be miniaturized by compactly and integrally arranging the electromagnetic actuator for driving in two axial directions in one area and making a movement amount required for driving smaller and to provide an optical apparatus.SOLUTION: The image blur correction device includes: a first regulation part making a moved body movable in a first direction and regulating movement in an orthogonal second direction, between a first moving part having a first coil and the moved body for correcting an image blur and moved in a direction orthogonal to an optical axis by a first electromagnetic action force acting on the first coil and a second moving part having a magnet and engaged with the first moving part; and a second regulation part making the moved body movable in a second direction and regulating the movement in the first direction, between the second moving part and a fixed part having a second coil on a second electromagnetic action force. The direction of generating the first electromagnetic action force and the direction of generating the reaction force of the second electromagnetic action force are set to an inclined third direction.

Description

  The present invention uses an electromagnetic force acting between a coil and a magnet to correct image blur caused by camera shake or the like, and moves the optical element such as a lens or a photoelectric conversion element such as an image sensor. The present invention relates to a correction device and an optical apparatus using the correction device. The optical apparatus includes an interchangeable lens equipped with an image blur correction device, and an imaging device such as a video camera and a digital still camera.

  An image stabilization device as an image blur correction device mounted on an image pickup device such as an interchangeable lens or a video camera or a digital still camera detects a shake such as a camera shake, and optically illuminates the lens or the image sensor according to the detection result. What moves in the direction orthogonal to an axis | shaft is known.

  That is, in Patent Document 1, an electromagnetic actuator is constituted by a coil and a magnet, and the lens is moved in two orthogonal axes (pitch and yaw directions) by using an electromagnetic acting force generated between the coil and the magnet by energizing the coil. Is disclosed. Furthermore, Patent Document 2 discloses a similar anti-vibration device, but in which electromagnetic actuators for driving a driving object such as a lens in a biaxial direction are arranged in one area in a compact manner.

JP-A-11-305277 Japanese Patent No. 4692027

  However, in the above-described prior art, when it is desired to move a movable body (for example, a correction lens) that corrects image blur in the direction perpendicular to the optical axis, for example, in the pitch direction, the coil is relatively positioned with respect to the fixed magnet. I need to move one. That is, the size of the coil and the magnet is required by the amount of movement necessary for driving.

  SUMMARY OF THE INVENTION An object of the present invention is to provide an image blur correction apparatus and an optical device in which electromagnetic actuators for driving in two axial directions are compactly integrated into one region, and the electromagnetic actuator is miniaturized by reducing the amount of movement required for driving. To provide equipment.

  In order to achieve the above object, the present invention includes a first coil and a first lens that has a correction lens or an image sensor as a moving body for image blur correction and acts on the first coil that is energized. A first moving part that moves in a direction orthogonal to the optical axis by an acting force; and a magnet that generates the first electromagnetic acting force in cooperation with the energized first coil; A second moving part to be engaged and a second coil provided on the opposite side of the first coil across the magnet in the optical axis direction, and holding the first moving part and the second moving part And the second moving unit including the magnet is optically coupled to the optical axis by a reaction force of a second electromagnetic acting force acting on the second coil that is energized in cooperation with the magnet. An image blur correction device that moves in a direction orthogonal to the front The movable body can be moved in the first direction between the first moving unit and the second moving unit with respect to a first direction and a second direction orthogonal to each other in a plane orthogonal to the optical axis. On the other hand, a first restricting portion that restricts movement in the second direction, and one that enables the movable body to move in the second direction between the second moving portion and the fixed portion. A second restricting portion for restricting movement in the first direction, and the direction in which the first electromagnetic acting force is generated and the direction in which the second electromagnetic acting force is generated are The first direction and the second direction are set in a third direction inclined in a plane perpendicular to the optical axis.

  An optical apparatus using the image blur correction device also constitutes another aspect of the present invention.

  According to the present invention, an image blur correction apparatus and an optical device in which electromagnetic actuators for driving in two axial directions are compactly integrated into one region, and the electromagnetic actuator is miniaturized by reducing the amount of movement required for driving. Equipment can be provided.

(A) is the disassembled perspective view seen from the front lens side of the image shift correction apparatus which concerns on embodiment of this invention, (b) is the disassembled perspective view seen from the imaging surface of the image shift correction apparatus. (A) is a perspective view of a camera equipped with an image shift correction device according to an embodiment of the present invention, (b) is a front view seen from the front lens side and a sectional view of an actuator portion. 1 is a perspective view of an image shift correction apparatus according to an embodiment of the present invention. It is a schematic diagram of a lens barrel of a camera equipped with an image shift correction device according to an embodiment of the present invention. (A) is a figure when shifting lens L3 as a correction lens is located in the optical axis center position, (b) is a figure when shifting lens L3 is moved 1 up. (A) is a figure when the shift lens L3 is moved one downward, and (b) is a figure when the shift lens L3 is moved one right. (A) is a figure when the shift lens L3 is moved by one in the left direction, and (b) is a figure when the shift lens L3 is moved by one in the upper right direction. (A) is a figure when the shift lens L3 is moved by one in the upper left direction, and (b) is a figure when the shift lens L3 is moved by one in the lower right direction. It is a figure when the shift lens L3 is moved 1 in the lower left direction. It is a graph which shows the relationship between the relative displacement of a position detection sensor and a drive magnet, and the magnetic flux density of a Hall element. (A) is the figure which looked at the shift base lens barrel 4 from the front lens side, (b) is the figure which looked at the PY direction guide part 5 on the shift base lens barrel 4 from the front lens side. is there.

  Hereinafter, preferred embodiments of the present invention will be described in detail with reference to the accompanying drawings.

<< First Embodiment >>
(Optical equipment)
FIG. 2A is a perspective view of a camera as an optical apparatus equipped with the image shift correction device (anti-vibration unit) according to the embodiment of the present invention. In the figure, L is a lens barrel, and B is a camera body. FIG. 4 is a diagram schematically showing an example of the lens barrel L. As shown in FIG. In FIG. 4, an output signal from the image sensor 20 is subjected to various signal processing by the camera signal processing circuit 201 and converted into a video signal. The video signal is displayed on a display (not shown) through the microcomputer 202 or stored in a storage medium (semiconductor memory, optical disk, hard disk, magnetic tape, etc.) not shown.

  The microcomputer 202 receives signals from the zoom reset circuit 206 that detects the reference position of the second lens unit L2 in the optical axis direction and the focus position detection circuit 205 that detects the position of the fourth lens unit L4. Then, the zoom motor drive circuit 204 and the focus drive circuit 203 are controlled with reference to these signals to perform zoom drive and focus drive. Further, the microcomputer 202 controls the aperture unit driving circuit 207 based on the luminance signal component of the video signal, and changes the aperture diameter of the light amount adjusting unit 3 to a size corresponding to the appropriate light amount.

(Overview of image stabilization)
Further, the microcomputer 202 receives pitch signals such as a vibration gyro mounted on the video camera and shake signals from the yaw shake sensors 215 and 216. Then, based on the shake signal, the pitch and the target drive position in the yaw direction of the shift lens L3 as a correction lens for correcting image blur are calculated. Further, the microcomputer 202 receives information on the position (detection position) of the shift lens L3 from the pitch position and yaw position detection circuits 213 and 214 including first and second Hall elements (not shown).

  Then, energization to the first and second drive coils (not shown) is controlled through the pitch and yaw coil drive circuits 211 and 212 so that the detection position reaches the target drive position. Thereby, image blur correction (anti-vibration) is performed.

(Image blur correction device)
Next, the image blur correction device (anti-vibration unit) according to the embodiment of the present invention will be described in detail. FIG. 1A is an exploded perspective view as viewed from the front lens side of the image shift correction apparatus according to the present embodiment, and FIG. 1B is an exploded perspective view as viewed from the imaging surface of the image shift correction apparatus. FIG. 2B is a front view of the image shift correction apparatus according to the present embodiment as viewed from the front lens side, and a sectional view of the actuator portion. FIG. 3 is a perspective view of the image shift correction apparatus according to the present embodiment.

  In FIG. 1A, in the optical axis direction from the object side, first, a shift lens L3 (FIG. 2B) which is a correction lens for correcting image shift is held movably within a plane orthogonal to the optical axis. A shift barrel 6 as a first moving unit is provided. Next, the guide unit 5 (the shift barrel 6 is connected to the optical axis) as a second moving unit that engages with the first moving unit and holds the correction lens that corrects the image shift so as to be movable in a plane orthogonal to the optical axis. And a base portion for driving in the orthogonal direction. Further, a shift base barrel 4 is provided as a fixed part that holds the first moving part and the second moving part.

  While the shift lens L3, which is a moving object, can be moved in the pitch direction (first direction) between the shift barrel 6 and the guide unit 5 in a plane orthogonal to the optical axis, the orthogonal yaw direction A first restricting portion that restricts movement in the (second direction) is provided. That is, a guide V-groove 6a of the shift barrel 6 and a guide V-groove 5c of the guide 5 are provided as the first restricting portion, and the rolling ball 12 is sandwiched between them, and only rolling friction of the ball is obtained. It is provided so as to be movable.

  In addition, the shift lens L3, which is a moving object, can be moved in the yaw direction (second direction) between the guide unit 5 and the shift base barrel 4, while in the pitch direction (first direction). A second restricting portion that restricts movement is provided. That is, as the second restricting portion, a guide V-groove 5b of the guide portion 5 and a guide V-groove 4a of the shift base barrel 4 are provided, and the rolling ball 11 is sandwiched between them so that only rolling friction of the ball is present. It is provided so as to be movable.

  The two coil springs 7 are configured to be hooked on the shift base barrel 4 on one side and on the shift barrel 6 on the other side, and the shift base barrel 4 and the shift barrel with the guide portion 5 as an intermediate portion. 6 has the role of generating a force to be sandwiched between them. By adopting this configuration, the guide V-groove and the rolling ball are in reliable contact with each other, and the movable portion moves only by rolling friction.

(Direction of electromagnetic force)
As shown in the AA cross section of the actuator portion in FIG. 2 (b), N and S are reversed 1 on the side where the magnet 5d insert-molded in the guide portion 5 is close to the optical axis and on the side far from the optical axis. Two poles are magnetized on the surface. Then, the pitch direction driving coil 10a and the yaw direction driving coil 10b on the opposite side to the coil 10a are arranged on the shift barrel 6 and the shift base barrel 4 so as to sandwich the magnet 5d in the optical axis direction. It is bonded and fixed with an adhesive.

  Here, the directions of the currents of the coils 10a and 10b are opposite on the side close to the optical axis and the side far from the optical axis, respectively. However, since the directions of the magnetic lines of force by the magnet 5d are opposite on the side close to the optical axis and the side far from the optical axis, respectively, the first electromagnetic acting force and the second electromagnetic acting force are generated in the same direction.

  As shown in FIG. 2B, with respect to any of the 6a direction (first direction) that is the pitch direction and the 5a direction (second direction) that is the yaw direction in a plane orthogonal to the optical axis. Also, the magnet 5d is arranged in the L3a direction (third direction) inclined 45 degrees in the plane orthogonal to the optical axis. Similarly to the magnet 5d, the coils 10a and 10b are also viewed from the front lens side of the lens barrel, in the L3a direction (first order) having an inclination of 45 degrees in the plane perpendicular to the optical axis with respect to the 6a direction and the 5a direction. 3) and the magnet 5d is interposed therebetween. Thereby, electromagnetic acting force is generated in the coils 10a and 10b in the L3a direction having a 45 degree inclination in the plane perpendicular to the optical axis with respect to the 6a direction and the 5a direction.

  Since the coil 10a is provided in the shift barrel 6 serving as the first moving unit, the shift barrel 6 is moved by the electromagnetic acting force generated in the coil 10a. On the other hand, since the coil 10b is provided in the shift base barrel 4 as a fixed portion, a reaction force of the electromagnetic acting force generated in the coil 10b is generated in the magnet 5d, and the reaction force serves as a guide as the second moving portion. Part 5 moves.

(Movement only in the pitch direction)
When a voltage is applied to the pitch direction driving coil 10a, the pitch direction driving coil 10a and the magnet 5d cooperate to generate an electromagnetic acting force (driving force) in the L3a direction. This driving force is controlled by the magnitude and direction (polarity) of the voltage applied to the pitch direction driving coil 10a. The pitch direction driving coil 10a is adhesively fixed to the shift lens barrel 6, and the position of the guide portion 5 is controlled by applying a voltage to the yaw direction driving coil 10b as described above. The driving force acts as a force for moving the shift barrel 6.

  At that time, the driving direction is the direction of L3a, but as described above, the shift barrel 6 is configured to be movable only in the pitch direction (6a direction) with respect to the guide portion 5. Therefore, the component force in the 6a direction of the driving force in the L3a direction acts on the shift barrel 6, and as a result, the shift barrel 6 is driven only in the 6a direction (pitch direction).

(Moving only in the yaw direction)
When a voltage is applied to the yaw direction driving coil 10b, the yaw direction driving coil 10b and the magnet 5d cooperate to generate an electromagnetic acting force (driving force) in the L3a direction. This driving force is controlled by the magnitude and direction (polarity) of the voltage applied to the yaw direction driving coil 10b. Since the coil 10b for driving in the yaw direction is bonded and fixed to the shift base barrel 4 which is a fixing portion, the driving force acts as a force (reaction force) for moving the guide portion 5.

  At that time, the driving direction is the direction of L3a. However, as described above, the guide portion 5 is configured to be movable only in the yaw direction (5a direction) with respect to the shift base barrel 4. Therefore, the component force in the direction 5a of the driving force in the L3a direction acts on the guide portion 5, and as a result, the guide portion 5 is driven only in the 5a direction (yaw direction).

  In this way, the shift barrel 6 including the shift lens L3 is configured to be freely movable in the 6a direction (pitch direction) and the 5a direction (yaw direction).

(Position detection sensor)
In FIG. 2B, reference numeral 9a denotes a pitch position detection sensor, which is fixedly arranged inside the pitch direction drive coil 10a (first coil). Reference numeral 9b denotes a yaw position detection sensor, which is fixedly arranged inside the coil 10b (second coil) for driving in the yaw direction. In both cases, for example, a Hall element can be used. The specific position of the Hall element is in the vicinity of the magnetization boundary between the N pole and the S pole of the magnet magnetized in two poles with respect to one surface inside the first coil and the second coil.

  When such a displacement of the drive magnet 5d with respect to the position detection sensor occurs in the L3a direction, the output of the electrical signal of the position detection sensor changes according to the change in magnetic flux from the drive magnet 5d, and position detection is possible. It becomes. That is, the Hall element detects the magnetic flux density of the magnet and detects a relative position between the magnet, the first coil, and the second coil (first position detection sensor, second position detection). Sensor).

(Movement amount in the direction of electromagnetic force generation suitable for downsizing)
Next, the amount of movement of the shift lens L3 in the image blur correction device (anti-vibration unit) of the present embodiment will be described. That is, for example, when one movement is desired, an explanation of how many pitch direction driving coils 10a and yaw direction driving coils 10b should be moved relative to the driving magnet 5d is shown in FIG. Details will be described with reference to FIG. 5 to 9 all show only four components, that is, the shift lens L3, the magnet 5d, the pitch direction driving coil 10a, and the yaw direction driving coil 10b, as viewed from the front lens direction of the lens barrel. It is a figure.

  FIG. 5A is a diagram when the shift lens L3 as a correction lens is positioned at the center of the optical axis, and FIG. 5B is a diagram when the shift lens L3 is moved upward by one. FIG. 6A is a diagram when the shift lens L3 is moved one downward, and FIG. 6B is a diagram when the shift lens L3 is moved one right. FIG. 7A is a diagram when the shift lens L3 is moved by one in the left direction, and FIG. 7B is a diagram when the shift lens L3 is moved by one in the upper right.

  8A is a diagram when the shift lens L3 is moved by one in the upper left direction, FIG. 8B is a diagram when the shift lens L3 is moved by one in the lower right direction, and FIG. 9 is a diagram when the shift lens L3 is moved by one. It is a figure when it moves 1 in the lower left direction.

  Here, for example, in FIG. 5B, in order to move the shift lens L3 upward by one, it is only necessary to move the pitch direction driving coil 10a by 1 / √2 in the L3a direction with respect to the magnet 5d. . Since the shift lens L3 is configured to move only in the 6a direction, if the pitch direction driving coil 10a is moved in the L3a direction by 1 / √2, the result is a 1 / √2 movement in the L3b direction. . Thus, the size of the magnet 5d in the L3a direction can be reduced.

  In general, when designing an actuator for shift driving, as shown in FIG. 5A, the distance L3aA from the outer shape of the coil to the outer shape of the magnet in the L3a direction is the maximum value of the relative driving range of the coil and the magnet. Set to degree. In the L3b direction, the distance L3bA from the coil inner diameter to the outer shape of the drive magnet is also set to about the maximum value of the relative drive range of the coil and the drive magnet. Specifically, in the conventional configuration (the configuration of Japanese Patent No. 4692027), when it is desired to move the shift lens L3 by one, L3aA is set to 1, and L3bA is also set to 1.

  On the other hand, in the configuration of the present embodiment, as shown in Table 1, the relative movement amount of the coil and the magnet is 1 / √2, regardless of which direction the shift lens L3 is moved. That is, in the present embodiment, when it is desired to move the shift lens L3 by one, L3aA is set to 1 / √2, and L3bA is also set to 1 / √2. Therefore, by adopting the configuration of the present embodiment, both the size of the magnet 5d in the L3a direction and the size of the L3b direction can be reduced, so that the shift driving actuator can be reduced in size.

  When it is desired to move the shift lens L3 by one, as described above, it is only necessary to move the relative movement amount of the coil and the magnet in the L3a direction by 1 / √2. This means that since the position detection sensor is arranged inside the coil, it is only necessary to move the relative movement amount of the position detection sensor and the magnet 5d by 1 / √2.

  FIG. 10 is a graph showing the relationship between the relative movement amount of the position detection sensor and the drive magnet in the L3a direction and the magnetic flux density of the position detection sensor (Hall element). The horizontal axis represents the relative movement amount, and the vertical axis represents the magnetic flux density. The zero position on the horizontal axis is the position where the NS boundary position of the drive magnet overlaps the position of the position detection sensor.

  As can be seen from FIG. 10, the Hall element has a characteristic that the output is saturated as the relative movement amount of the position detection sensor and the magnet increases. In FIG. 10, the range that can be used as the position detection sensor is a range of −S to S, and the approximate straight line in the range is SS. That is, when the relative movement amount increases beyond the range of -S to S, a difference occurs between the approximate straight line SS and the actual sensor output, and the position accuracy of the shift lens L3 is outside the movable range of the shift lens L3. There is a problem that the sensor linearity is reduced.

  In the present embodiment, as described above, in order to move the shift lens L3 by 1, it is only necessary to move the pitch direction and yaw direction drive coils 1 / √2 in the L3a direction with respect to the magnet 5d. In other words, in this embodiment, when the sensor linearity is the same as the conventional condition, the drive range can be expanded to √2 times the conventional value.

(Relationship between guide V-groove direction and gravity direction)
Next, in this embodiment, the relationship between the direction of gravity and the direction of the guide V-groove set in the shift barrel 6 and the guide unit 5 will be described with reference to FIG. FIG. 11A is a view of the shift base barrel 4 as seen from the front lens side. As described above, the shift base barrel 4 is provided with the three guide V-grooves 4a extending in the yaw direction. G is the direction of gravity. FIG. 11B is a view as seen from the front lens side in a state where the guide portion 5 is assembled on the shift base barrel 4. As described above, the guide portion 5 is provided with three guide V-grooves 5c extending in the pitch direction. Similarly, G is the direction of gravity.

  Since the force that tries to move downward is exerted on each part due to the influence of gravity, the shift base barrel 4 is “weight of the guide portion 5 + weight of the magnet 5d + weight of the shift barrel 6 + weight of the shift lens L3. ”Must be supported. On the other hand, the guide portion 5 only needs to support the sum of “the weight of the shift barrel 6 + the weight of the shift lens L3”. That is, in the present embodiment, since the weight to be supported by the shift base barrel 4 is heavy, a configuration in which gravity generated by the guide V-groove is supported by setting the guide V-groove so as to intersect with the direction of gravity by 90 degrees. Have taken. By adopting this configuration, the size of the shift drive actuator can be reduced as much as possible.

(Moving magnet configuration)
In the present embodiment, a magnet 5d is insert-molded in the guide portion 5, and when the shift lens barrel 6 is driven, the guide portion 5 moves, which is a so-called moving magnet configuration. In FIG. 2B and FIG. 3, 8 is a flexible printed circuit board. One side is fixed to the shift barrel 6, and the other side is fixed to the shift base barrel 4. The connecting portion 8a is a U-shape when viewed from the L3a direction which is a direction perpendicular to the optical axis, and has a certain degree of deflection.

  In the conventional configuration (the configuration of Japanese Patent No. 4692027), since the magnet is on the fixed portion side, the flexible movable portion from the fixed side to the pitch driving coil and the flexible movable portion from the fixed side to the yaw driving coil are arranged. Two locations are required. In addition, both of the two locations need to have a certain degree of deflection so that the influence of the reaction force of the flex does not affect the movable portion.

  On the other hand, in this embodiment, since it is a moving magnet configuration as described above, it is only necessary to consider that only one portion of the flexible movable part of the pitch driving coil to the yaw driving coil has a certain degree of deflection. That is, in the present embodiment, only one place where the deflection should be taken into account is required, and thus the shift unit can be reduced in size.

(Effect of this embodiment)
According to the present embodiment, an image blur correction apparatus including a lens barrel that is smaller in size and electromagnetic actuators for driving in the two-axis directions in a compact area and that is smaller in size is provided. Can be provided.

  Specifically, according to the present embodiment, the electromagnetic actuator that drives the shift barrel 6 in the pitch and yaw directions is constituted by the two coils 10a and 10b and the magnet 5d. That is, the magnet 5d is shared by the pitch direction drive and the yaw direction drive. Thereby, compared with the case where two electromagnetic actuators each having a coil and a magnet are used as in the prior art, the number of parts is reduced, and the ease of assembly and cost reduction can be achieved.

  Furthermore, the magnet generally has a heavy weight with respect to the size, and in the so-called moving magnet type vibration isolation unit as in this embodiment, it is disadvantageous for driving the shift barrel. However, in the present embodiment, since one drive magnet 5d is mounted on the shift movable part side for the biaxial driving, the weight of the shift movable part can be reduced. Therefore, it is possible to perform vibration-proof driving at high speed and high accuracy.

  Further, when the vibration isolating unit is viewed from the optical axis direction, the two coils 10a and 10b and the magnet 5d are arranged together in an obliquely upper region (45 degree direction) of the vibration isolating unit. The area of the vibration isolation unit can be reduced when viewed from the direction. Therefore, it is possible to reduce the size of the image stabilizing unit and the video camera on which the image stabilizing unit is mounted.

  In addition, an image blur correction device including a lens barrel that improves the sensor output characteristic saturation when the drive stroke is long and improves the accuracy of the sensor output characteristic, and an optical apparatus using the image blur correction apparatus are provided. it can.

(Modification 1)
As mentioned above, although preferable embodiment of this invention was described, this invention is not limited to these embodiment, A various deformation | transformation and change are possible within the range of the summary. For example, the image blur correction device (anti-vibration unit) of this embodiment can be mounted not only on a video camera but also on an imaging device such as a digital still camera and various optical devices such as an interchangeable lens.

(Modification 2)
In the above-described embodiment, the magnet is disposed in a state inclined by 45 degrees with respect to the pitch direction when the lens barrel is viewed from the front lens side, but an angle different from 45 degrees with respect to the pitch direction ( For example, even if the range is changed from 30 degrees to 60 degrees, the same object as in the present embodiment can be achieved.

(Modification 3)
In the above-described embodiment, the configuration example of the image blur correction device (anti-vibration unit) in which the optical glass is decentered is shown, but this may be replaced with a photoelectric conversion element (imaging device) such as a CCD or CMOS sensor. . That is, the moving object that moves in a plane orthogonal to the optical axis is not limited to the image shift correction lens (for example, the shift lens L3), but may be an image sensor (for example, the image sensor 20).

··· Shift base barrel (fixed portion), ··· Guide portion (second moving portion), 5a · · Yaw direction (second direction), 5d · · Magnet, 6 · · · Shift barrel (first Moving part), 6a..Pitch direction (first direction), 9a..Pitch position detection sensor, 9b..Yaw position detection sensor, 10a..Pitch direction drive coil, 10b..Yaw direction drive Coil, 11, 12, .. Rolling ball, L3a ... Electromagnetic force generation direction (first direction)

Claims (5)

A first coil and a correction lens or imaging element as a moving object for image blur correction, and a first electromagnetic force acting on the first coil that is energized to move in a direction orthogonal to the optical axis. 1 moving part,
A second moving part having a magnet for generating the first electromagnetic acting force in cooperation with the energized first coil, and engaging with the first moving part;
A second coil provided on the opposite side of the first coil across the magnet in the optical axis direction, the first moving part and a fixed part holding the second moving part;
Have
Image blur correction in which the second moving part having the magnet moves in a direction orthogonal to the optical axis by the reaction force of the second electromagnetic acting force acting on the second coil energized in cooperation with the magnet. A device,
Regarding the first direction and the second direction orthogonal to each other in a plane orthogonal to the optical axis,
A first restricting portion that restricts movement in the second direction while allowing the movable body to move in the first direction between the first moving portion and the second moving portion;
A second restricting portion for restricting movement in the first direction while allowing the object to be moved in the second direction between the second moving portion and the fixed portion. ,
The direction of generation of the first electromagnetic acting force and the direction of reaction of the second electromagnetic acting force are inclined in a plane perpendicular to the optical axis with respect to the first direction and the second direction. An image blur correction apparatus characterized by being set in a third direction.   The image blur correction apparatus according to claim 1, wherein the third direction is a direction of 45 degrees with respect to the first direction and the second direction.   The image blur correction apparatus according to claim 1, wherein the first direction is a gravity direction. The magnet is a magnet magnetized in two poles with respect to one surface,
A first position detection that detects a relative position between the magnet and the first coil by detecting a magnetic flux density of the magnet at a magnetization boundary between the N pole and the S pole of the magnet inside the first coil. Sensors for
A second position detection for detecting a relative position between the magnet and the second coil by detecting a magnetic flux density of the magnet at a magnetization boundary between the N pole and the S pole of the magnet inside the second coil. Sensors for
The image blur correction apparatus according to claim 1, wherein the image blur correction apparatus includes:   An optical apparatus using the image blur correction device according to claim 1.