JP5845577B2 - Image blur correction apparatus and imaging apparatus - Google Patents

Description

  The present invention relates to an image blur correction device that corrects image blur caused by camera shake at the time of shooting and an imaging device including the image blur correction device, and in particular, to reduce the thickness and size of the lens barrel device when retracted. The present invention relates to an image blur correction apparatus and an imaging apparatus that can perform the above-described operation.

  As a conventional image blur correction device of this type, for example, there is a device described in Patent Document 1. Patent Document 1 describes a retractable lens barrel and an imaging apparatus. The retractable lens barrel described in Patent Document 1 includes an image shake correction unit that drives the first lens on a plane orthogonal to the optical axis so as to cancel the shake of the imaging device, and an image shake correction. And a second lens arranged next to the means. In the retracted state, the image blur correction unit retracts the first lens to a position off the optical axis of the second lens, and at least part of the space on the optical axis generated by the retracting, The second lens is retracted so that a part of the lens enters.

JP 2006-146125 A

  However, in the retractable lens barrel described above, the movable lens holding frame that holds the lens holds the lens via two moving coil type electromagnetic actuators for driving the lens in the orthogonal X and Y directions. Supported by a frame. Therefore, in order to completely retract the lens in the direction perpendicular to the optical axis, it is necessary to move the movable lens holding frame in the X direction and the Y direction at least as much as the length of the lens diameter. As a result, the length of the electromagnetic actuator in the direction orthogonal to the optical axis becomes large, and the lens barrel cannot be reduced in size.

  The problem to be solved is that the conventional image blur correction apparatus is configured to move the movable lens in the first direction and the second direction at least larger than the diameter of the movable lens. For this reason, the dimension of the movable lens in the moving direction becomes large, and the image blur correction device cannot be reduced in thickness and size.

The image blur correction device of the present application includes a holder member, a camera shake detection unit, a first guide unit, a second guide unit, a third guide unit, a first drive unit, and a second drive unit. . The holder member holds a correction lens or an image sensor that corrects the optical axis of the optical system, and the camera shake detection unit detects camera shake. The first guide portion guides the movement of the holder member in the first direction on the plane orthogonal to the optical axis, and the second guide portion extends in the second direction that is also orthogonal to the first direction of the holder member. The third guide portion similarly guides the movement of the holder member in the third direction. The first drive unit moves the holder member in the first direction according to the detection result of the camera shake detection unit, and the second drive unit moves the holder member in the second direction according to the detection result of the camera shake detection unit. To do. The first guide portion includes a first guide shaft which overlaps the second drive unit in the optical axis direction front view, the second guide portion, the overlap between the first driving unit in the optical axis direction front view 2 It has a guide shaft. Then, the holder member is positioned outside the optical axis by the third guide portion on the optical axis and avoids interference with the first drive portion, the first guide shaft, the second drive portion, and the second guide shaft. It was possible to move to the retracted position.
The third guide unit rotates the holder member on a plane orthogonal to the optical axis, and rotates the holder member about the rotation axis as a rotation center, thereby moving the correction lens or the image sensor to the shooting position. A retraction position control cam that moves from the retraction position to the retraction position, and an anti-vibration drive restriction cam that engages the rotation shaft and restricts the rotation position of the holder member. The anti-vibration drive regulating cam is composed of a cylindrical shaft portion having an axial hole extending in the axial direction at the axial center portion, and a tapered guide formed in a mortar shape is provided at the opening of the axial hole. Yes. Then, after the rotational position of the rotational shaft is regulated by the anti-vibration drive regulating cam, the retracted position control cam is operated to move the correction lens or the image sensor from the photographing position to the retracted position.

In addition, the imaging apparatus of the present application includes a lens barrel device provided with an image blur correction device having a correction lens or an imaging element for correcting an optical axis of an optical system, and an imaging device main body to which the lens barrel device is fixedly or detachably attached And. The image blur correction apparatus includes a holder member, a camera shake detection unit, a first guide unit, a second guide unit, a third guide unit, a first drive unit, and a second drive unit. The holder member holds a correction lens or an image sensor that corrects the optical axis of the optical system, and the camera shake detection unit detects camera shake. The first guide portion guides the movement of the holder member in the first direction on the plane orthogonal to the optical axis, and the second guide portion extends in the second direction that is also orthogonal to the first direction of the holder member. The third guide portion similarly guides the movement of the holder member in the third direction. The first drive unit moves the holder member in the first direction according to the detection result of the camera shake detection unit, and the second drive unit moves the holder member in the second direction according to the detection result of the camera shake detection unit. To do. The first guide portion includes a first guide shaft which overlaps the second drive unit in the optical axis direction front view, the second guide portion, the overlap between the first driving unit in the optical axis direction front view 2 It has a guide shaft. Then, the holder member is positioned outside the optical axis by the third guide portion on the optical axis and avoids interference with the first drive portion, the first guide shaft, the second drive portion, and the second guide shaft. It was possible to move to the retracted position.
The third guide unit rotates the holder member on a plane orthogonal to the optical axis, and rotates the holder member about the rotation axis as a rotation center, thereby moving the correction lens or the image sensor to the shooting position. A retraction position control cam that moves from the retraction position to the retraction position, and an anti-vibration drive restriction cam that engages the rotation shaft and restricts the rotation position of the holder member. The anti-vibration drive regulating cam is composed of a cylindrical shaft portion having an axial hole extending in the axial direction at the axial center portion, and a tapered guide formed in a mortar shape is provided at the opening of the axial hole. Yes. Then, after the rotational position of the rotational shaft is regulated by the anti-vibration drive regulating cam, the retracted position control cam is operated to move the correction lens or the image sensor from the photographing position to the retracted position.

  According to the image blur correction device and the imaging device, the holder member, the camera shake detection unit, the first guide unit, the second guide unit, the third guide unit, the first drive unit, and the second drive unit are provided. And the holder member is configured to be movable between the photographing position and the retracted position by the third guide portion. As a result, the image blur correction device can be reduced in thickness and size, and the imaging device having the image blur correction function can be reduced in thickness and size.

It is a perspective view which shows the 1st example of embodiment of this image blurring correction apparatus. It is the perspective view which divided | segmented the image blurring correction apparatus shown in FIG. 1 for every block. It is the perspective view which divided | segmented the image blurring correction apparatus shown in FIG. 1 for every components, and was seen from the front side. It is the perspective view which divided | segmented the image blurring correction apparatus shown in FIG. 1 for every component, and was seen from the back side. It is explanatory drawing of the attaching part of the elastic member which concerns on the image blurring correction apparatus shown in FIG. It is a perspective view of the elastic member shown in FIG. It is a front view of the state which attached the two coils and the two position detection sensors to the base member which concerns on the image blurring correction apparatus shown in FIG. It is a front view of the state which attached the 2nd slide member to the base member shown in FIG. It is a front view of the state which attached the 1st slide member to the base member shown in FIG. It is a front view of the state which attached the holder member to the 1st slide member shown in FIG. FIG. 8 is a front view of a state in which a second slide member, a first slide member, and a holder member are sequentially overlapped and attached to the base member shown in FIG. 7. FIG. 12 is a front view showing a coil, a magnet, and the like in the base member and the like shown in FIG. 11 before image blurring occurs. It is a front view of the state after image blurring arises from the state shown in FIG. It is a front view of the state which moved the correction lens to the retracted position from the state shown in FIG. It is sectional drawing at the time of retraction of the lens barrel apparatus provided with this image blur correction apparatus. It is sectional drawing at the time of use of the lens-barrel apparatus which provided this image blurring correction apparatus. FIG. 17A is a state before the operation of the anti-vibration drive restriction cam, FIG. 17B is a state where the rotation shaft is restricted by the operation of the anti-vibration drive restriction cam, and FIG. 17C is a retracted position. It is explanatory drawing of each of the state which moved the auxiliary lens to the retracted position by operation | movement of the control cam. 1 is a perspective view of a digital camera showing a first embodiment of an imaging apparatus using a lens barrel device provided with this image blur correction device.

  A holder member, a camera shake detection unit, a first guide unit, a second guide unit, a third guide unit, a first drive unit, and a second drive unit are provided, and the holder member is rotated by the third guide unit. By moving, the auxiliary lens and the like can be moved between the photographing position and the retracted position. Accordingly, the correction lens or the like is moved largely to the third direction while reducing the amount of movement in the first and second directions, and moved to the photographing position on the optical axis and the retracted position outside the optical axis. Can do. Therefore, the image blur correction device can be made thinner and smaller than the conventional device, and the imaging device having the image blur correction function can be made thinner and smaller.

  FIG. 1 to FIG. 14 show an example of an embodiment of this image blur correction device, and this image blur correction device 1 has a sliding anti-vibration unit structure. Here, the sliding anti-vibration unit structure means that the correction lens (or image pickup device) can be rotated about a rotation axis installed on a plane orthogonal to the optical axis of the optical system, and the rotation A unit configuration in which the shaft is also movable in two directions orthogonal to each other on the surface is assumed.

  As shown in FIGS. 3 and 4, the image blur correction device 1 includes a fixing member 2, a base member 3, a first slide member 4, a second slide member 5, a correction lens 6, and a holder member. 7, two coils 8A and 8B, two magnets 9A and 9B, and the like.

  The fixing member 2 is formed of a ring-shaped flat member having a through hole 11 at the center. On one surface of the fixed member 2, an anti-vibration drive restriction cam 12 and a retraction position control cam 13 that protrude in the thickness direction are provided. The anti-vibration drive restricting cam 12 is formed of a cylindrical shaft portion having an axial hole 14 extending in the axial direction in the axial center portion, and a tapered guide 15 formed in a mortar shape is formed in the opening of the axial hole 14. Is provided. The anti-vibration drive restricting cam 12 restricts the holder member 7 to a predetermined position to prevent the function of correcting the image blur even when the image blur occurs. The prevention function is executed by fitting to a rotation shaft 65 described later. The retraction position control cam 13 is for rotating the holder member 7, is composed of a flat plate-like protrusion, and is installed in the vicinity of the anti-vibration drive restriction cam 12.

  The base member 3 has a flat plate-like end surface portion 21 formed in a disc shape, and a cylindrical side surface formed by arranging in a cylindrical shape so as to rise continuously on one surface of the plate-like end surface portion 21. Part 22. The outer diameter of the plate-like end surface portion 21 is formed to be approximately the same as the outer diameter of the fixing member 2. An opening 23 larger than the through hole 11 of the fixing member 2 is provided on the inner side of the plate-like end surface portion 21, and an inner projecting portion 24 is provided so as to project into the opening 23. The inner overhanging portion 24 is deployed radially outward from a portion that is a predetermined distance away from the central portion G of the plate-like end surface portion 21 in the radial direction, and is continuously deployed in a portion that extends approximately half of the circumferential direction. It is formed as the overhang | projection part provided in this way.

  The inner projecting portion 24 of the plate-like end surface portion 21 accommodates two elongated holes 25A and 25B having a substantially rectangular shape for accommodating the two coils 8A and 8B, and two position detection sensors 26A and 26B. Square holes 27A and 27B having a substantially square shape are provided. The two long holes 25A and 25B are one place on the diametrical direction selected as the first direction X and one place on the second direction Y orthogonal to the first direction X in the plate-like end surface portion 21. Is provided. The first elongated hole 25A and the second elongated hole 25B are installed on the same circumference around the intersection F between the first direction X and the second direction Y. That is, the first elongated hole 25A and the second elongated hole 25B are provided at positions that are rotated and displaced 90 degrees around the intersection point F.

  The first elongated hole 25A of the inner overhang portion 24 extends in a direction parallel to the second direction Y. The first elongated hole 25A is fitted with a first coil 8A that is substantially rectangular and is wound flatly to meet the requirement. Further, the second elongated hole 25 </ b> B of the inner overhang portion 24 extends in a direction parallel to the first direction X. The second long hole 25B is fitted with a second coil 8B that is substantially rectangular and is wound flatly to meet this requirement. The first coil 8A and the second coil 8B are the same, and are formed, for example, by winding a copper wire many times and overlapping a plurality of winding portions in layers.

  In the inner overhanging portion 24, the first elongated hole 25A extends in a direction parallel to the second direction Y, and a second rectangular hole is formed on the extension line and on the opposite side of the second elongated hole 25B. 27B is provided. On the other hand, the second elongated hole 25B extends in a direction parallel to the first direction X, and a first rectangular hole 27A is provided on the extended line and on the opposite side of the first elongated hole 25A. ing. A first position detection sensor 26A for detecting the amount of movement of the first slide member 4 in the first direction X is mounted and fixed in the first square hole 27A. A second position detection sensor 26B that detects the amount of movement of the first slide member 4 in the second direction Y is mounted and fixed in the second square hole 27B. As the first position detection sensor 26A and the second position detection sensor 26B, for example, Hall elements can be used.

  Further, the inner overhanging portion 24 is provided with a slide restricting pin 28 that restricts the movement amount of the first slide member 4. The slide restricting pin 28 is formed as a protrusion protruding on one surface of the inner overhanging portion 24, and is disposed at a substantially middle portion between the two long holes 25A and 25B.

  With respect to the base member 3 having such a configuration, the holder member 7 is connected to the first direction X and the second direction Y within a predetermined range via the first slide member 4 and the second slide member 5. It is configured to be movable to. Therefore, in order to move the holder member 7 in the first direction X, the image blur correction device 1 causes the first guide portion to guide the movement in the first direction and the first guide portion to guide the holder member 7. And a first drive unit that moves in the first direction. Further, in order to move the holder member 7 in the second direction Y, the image blur correction device 1 causes the second guide portion to guide the movement in the second direction and the second guide portion to guide the holder member 7. And a second drive unit that moves in the second direction.

  Further, the holder member 7 is rotatably supported on the first slide member 4 by the rotation shaft 50, and is configured to be movable in the third direction Z by the third guide portion. . The holder member 7 is attached with a correction lens 6 as a third group lens constituting a part of the optical system. The first slide member 4 that supports the holder member 7 having the correction lens 6 is configured to be movable in the first direction X via the first guide portion. The second slide member 5 is configured to be movable with respect to the first slide member 4 in a second direction Y orthogonal to the first direction X via the second guide portion. The holder member 7 is configured to be movable in a third direction Z that is a rotation direction with the rotation shaft 50 as a rotation center.

  The first guide portion has a first guide main shaft 41 and a first guide counter shaft 43. The first guide main shaft 41 is provided in association with the first slide member 4 and the second slide member 5. On the other hand, the first guide countershaft 43 is provided in association with the first slide member 4 and the base member 3. The second guide portion has a second guide main shaft 42 and a second guide counter shaft 44. The second guide main shaft 42 and the second guide counter shaft 44 are provided in association with the second slide member 5 and the base member 3. The third guide portion has a holder member 7, a rotating shaft 50 provided on the holder member 7, and a bearing block portion 52 that rotatably supports the rotating shaft 50.

  As shown in FIGS. 1 to 4, 6, 7, etc., the second main shaft fixed bearing 33, the first counter shaft fixed bearing 35, and the second sub shaft are disposed inside the cylindrical side surface portion 22 of the base member 3. A fixed bearing 37 is provided. The second main shaft fixed bearing 33 fixes and supports both axial ends of the second guide main shaft 42, and includes a bearing piece 33a having a bearing hole and a bearing portion 33b having the bearing hole. The bearing piece 33a and the bearing portion 33b are provided on the inner side of the cylindrical side surface portion 22 and on one side of the first direction X so as to face each other in the second direction Y with a predetermined interval. . The second guide main shaft 42 is supported at both ends by the base member 3 by the bearing pieces 33a and the bearing portions 33b.

  The first countershaft fixed bearing 35 fixes and supports both axial ends of the first guide countershaft 43, and includes a first bearing piece 35a having a bearing hole and a second bearing piece 35b having a bearing hole. ing. The two bearing pieces 35a and 35b are disposed inside the cylindrical side surface portion 22 and on the opposite side to the second long hole 25B in the second direction Y. The two bearing pieces 35a and 35b are provided to face each other with a predetermined gap in the first direction X. The first guide countershaft 43 is supported at both ends by the base member 3 by the two bearing pieces 35a and 35b.

  The second countershaft fixed bearing 36 fixes and supports both axial ends of the second guide countershaft 44, and includes a first bearing piece 36a having a bearing hole and a second bearing piece 36b having a bearing hole. ing. The two bearing pieces 36a and 36b are disposed on the inner side of the cylindrical side surface portion 22 and on the first square hole 27A side in the first direction X. The two bearing pieces 36a and 36b are provided to face each other with a predetermined gap in the second direction Y. Both ends of the second guide countershaft 44 are supported by the base member 3 by the two bearing pieces 36a and 36b.

  The first slide member 4 has a configuration as shown in FIGS. That is, the first slide member 4 has a through hole 51 in the center portion, and is provided with three stage portions 4a, 4b, 4c and a bearing block portion 52 formed so as to protrude outward in the radial direction. ing. The 2nd stage part 4b is arrange | positioned in the position rotated 90 degree | times centering on the through-hole 51 with respect to the 1st stage part 4a of the 1st slide member 4, The 3rd stage part 4c is on the opposite side to these. Is arranged. And the bearing block part 52 is arrange | positioned between the 2nd stage part 4b and the 3rd stage part 4c.

  Concave portions 53a and 53b for accommodating the magnets 9A and 9B are provided on the surfaces of the first stage member 4a and the second stage portion 4b of the first slide member 4 facing the inner projecting portion 24, respectively. The two concave portions 53a and 53b are provided at positions corresponding to the two long holes 25A and 25B provided in the inner overhang portion 24. After the image blur correction device 1 is assembled, the two magnets 9A and 9B accommodated in the two recesses 53a and 53b are configured to face the two coils 8A and 8B accommodated in the two elongated holes 25A and 25B. Has been.

  The two magnets 9A and 9B are the same, and are formed as rectangular flat plates that are slightly larger than the coils 8A and 8B (may have the same length and width). Each of the magnets 9A and 9B has a two-stage structure in which four rods magnetized in the thickness direction are arranged side by side with the polarities of adjacent surfaces being different, and the two are stacked vertically. Yes. Thereby, in each magnet 9A, 9B, the direction of a magnetic force line is made into the reverse direction on both sides of the width direction. Therefore, in each of the coils 8A and 8B, the direction of the magnetic force lines acting on the two long side portions are opposite to each other, and as a result, the direction of the force generated on the two long side portions can be made the same.

  The first drive unit and the second drive unit that move the holder member 7 in the first direction X and the second direction Y are configured by the two coils 8A and 8B and the two magnets 9A and 9B. That is, the first drive unit that moves the first slide member 4 in the first direction X is configured by the combination of the first coil 8A and the first magnet 9A. And the 2nd drive part which moves the 1st slide member 4 and the 2nd slide member 5 to the 2nd direction Y is comprised by the combination of the 2nd coil 8B and the 2nd magnet 9B.

  A first main shaft sliding bearing 32 that slidably supports the first guide main shaft 41 is provided on the surface of the first slide member 4 opposite to the surface on which the concave portion 53a of the first stage portion 4a is provided. . The first main shaft sliding bearing 32 includes a first bearing piece 32a having a bearing hole and a second bearing piece 32b having a bearing hole. The two bearing pieces 32a and 32b are provided on the first stage portion 4a so as to face each other with a predetermined interval in the first direction X. Both ends of the first guide main shaft 41 are fixedly supported by a first main shaft fixed bearing 31 provided on the second slide member 5. The first spindle fixed bearing 31 includes a first bearing piece 31a having a bearing hole and a second bearing piece 31b having a bearing hole. The two bearing pieces 31 a and 31 b are provided on one surface of the second slide member 5 so as to face each other with a predetermined interval in the first direction X.

  When the second slide member 5 is assembled to the first slide member 4, the two bearing pieces 32 a and 32 b of the first spindle sliding bearing 32 are interposed between the two bearing pieces 31 a and 31 b of the first spindle fixed bearing 31. Intervened. For this reason, the second slide member 5 is provided with two fitting holes 54a and 54b into which the two bearing pieces 31a and 31b are fitted. When the two bearing pieces 31a and 31b are fitted into the two fitting holes 54a and 54b, the respective bearing holes of the four bearing pieces 31a, 31b, 32a, and 32b are opposed to each other on the same axis. Further, the two bearing pieces 31a and 31b are integrally fixed in the second direction Y with respect to the two fitting holes 54a and 54b, but relative to the first direction X by a predetermined distance. It is possible to move to.

  The first guide main shaft 41 is inserted in common into the four bearing holes of the four bearing pieces 31a, 31b, 32a, and 32b, and both ends thereof are fixedly supported by the two bearing pieces 31a and 31b. Thus, the first slide member 4 and the second slide member 5 are moved in the second direction Y through the first guide main shaft 41 supported by the first main shaft fixed bearing 31 and the first main shaft sliding bearing 32. One side is pivotally connected. At this time, the first slide member 4 and the second slide member 5 can move integrally in the second direction Y, but can move relatively by a predetermined distance in the first direction X. It is configured.

  Further, a first countershaft sliding piece that is slidably engaged with the first guide countershaft 43 on the opposite side of the first main shaft fixed bearing 31 across the through hole 51 of the first slide member 4. 37 is provided. The first countershaft sliding piece 37 has a bearing groove 55 opened to the outside in the surface direction of the first slide member 4, and the first guide countershaft 43 is slidably engaged with the bearing groove 55. Are combined. As a result, the first slide member 4 is movably supported on the other side in the second direction Y via the first guide countershaft 43 supported by the first countershaft fixed bearing 35. Yes. At this time, since the first countershaft sliding piece 37 is engaged with the first guide countershaft 43 by the bearing groove 55, the first countershaft sliding piece 37 can move in either the first direction X or the second direction Y. It has become.

  Further, on the surface of the first slide member 4 where the first spindle sliding bearing 32 is located, the edge of the through hole 51 on the first spindle sliding bearing 32 side protrudes in the direction in which the through hole 51 penetrates. A stopper pin 56 is provided. The stopper pin 56 regulates the amount of rotation of the holder member 7 and positions the correction lens 6 held by the holder member 7 on the optical axis of the optical system. Further, the first slide member 4 is provided with a movement restricting recess 57 for restricting the movement range of the first slide member 4 with respect to the base member 3. The movement restricting recess 57 is formed as a square hole in a portion where the first stage portion 4 a and the second stage portion 4 b of the first slide member 4 are continuous.

  A slide restricting pin 28 provided on the inner overhang portion 24 of the base member 3 is slidably engaged with the movement restricting recess 57 of the first slide member 4. The movement restricting recess 57 is formed to be appropriately larger than the outer diameter of the slide restricting pin 28, and the first slide member 4 is relative to the base member 3 by the gap between the move restricting recess 57 and the slide restricting pin 28. Thus, it can move relatively in all directions.

  The second slide member 5 arranged on the surface side of the first slide member 4 on which the first main shaft slide bearing 32 is provided is formed as a flat plate-like member having a substantially L shape. A first main shaft fixed bearing 31 and two fitting holes 54a and 54b are provided on one side of the second slide member 5, and a second main shaft sliding bearing 34 is provided on the other side. The second main shaft sliding bearing 34 includes a first bearing piece 34a having a bearing hole and a second bearing piece 34b having a bearing hole. The two bearing pieces 34a and 34b are provided to face each other with a predetermined interval in the second direction Y.

  Both ends of the second guide main shaft 42 are fixedly supported by a second main shaft fixed bearing 33 provided on the base member 3. As shown in FIG. 8, the second main shaft fixed bearing 33 includes a bearing piece 33a having a bearing hole and a bearing portion 33b having the bearing hole. The bearing piece 33a and the bearing portion 33b are provided to face each other with a predetermined interval in the second direction Y.

  When the first slide member 4 and the second slide member 5 are assembled to the base member 3, the second spindle slide of the second slide member 5 is interposed between the bearing piece 33a and the bearing portion 33b of the second spindle fixed bearing 33. Two bearing pieces 34a and 34b of the dynamic bearing 34 are interposed. The second guide main shaft 42 is inserted in common into the four bearing holes of the three bearing pieces 33a, 34a, 34b and the bearing portion 33b, and both ends thereof are fixedly supported by the bearing piece 33a and the bearing portion 34b. As a result, the second slide member 5 is rotatable in one side in the first direction X via the second guide main shaft 42 supported by the second main shaft fixed bearing 33 and the second main shaft sliding bearing 34. It is connected.

  Further, a second counter shaft sliding piece 38 slidably engaged with the second guide counter shaft 44 is provided on the side opposite to the second main shaft sliding bearing 34 of the second slide member 5. Yes. The second countershaft sliding piece 38 has a bearing groove 58 opened to the outside of one side of the second slide member 5, and the second guide countershaft 44 is slidably engaged with the bearing groove 58. Are combined. As a result, the second slide member 5 is movably supported on the other side in the first direction X via the second guide countershaft 44 supported by the second countershaft fixed bearing 36. Yes. At this time, since the second countershaft sliding piece 38 is engaged with the second guide countershaft 44 by the bearing groove 58, the second countershaft sliding piece 38 can move in either the first direction X or the second direction Y. It has become.

  In addition, the rotation shaft 50 of the holder member 7 is pivotally supported on the bearing block portion 52 of the first slide member 4. The bearing block 52 includes a first bearing piece 52a and a second bearing piece 52b that are opposed to each other with a predetermined interval, and a connecting piece 52c that connects the two bearing pieces 52a and 52b. . Bearing holes are respectively provided at positions where the two bearing pieces 52a and 52b face each other.

  As shown in FIGS. 3 and 4 and the like, the holder member 7 includes a holding frame 61 formed in a ring shape, and an arm portion 62 formed so as to protrude radially outward from the outer peripheral surface of the holding frame 61; It has a bearing portion 63 fixed to the tip of the arm portion 62. A rotation shaft 50 extending in a direction parallel to the direction through which the hole of the holding frame 61 passes is fixedly supported on the bearing portion 63. One end of the rotation shaft 50 protrudes small from one end surface of the bearing portion 63, and the other end of the rotation shaft 50 protrudes greatly from the other end surface of the bearing portion 63.

  An auxiliary lens 6 is attached to the holding frame 61 of the holder member 7, and the auxiliary lens 6 is fixed by an adhesive and is configured integrally with the holder member 7. The auxiliary lens 6 is moved to correct image blur when image blur occurs due to camera shake or the like at the time of shooting for imaging a subject via an optical system. This correction lens is generally constituted by a combination lens obtained by combining a plurality of lenses, but can also be constituted by a single lens having a special surface shape.

  Further, the holding frame 61 is provided with a stopper convex portion 64 that protrudes radially outward from the outer peripheral surface opposite to the arm portion 62. A side surface portion of the bearing portion 63 is connected to the tip of the arm portion 62, and the axis of the rotation shaft 50 provided on the bearing portion 63 is an optical axis of the auxiliary lens 6 fixed to the holding frame 61. It is formed so that it may become parallel to. The projecting portions at both ends of the rotating shaft 50 projecting from both axial ends of the bearing portion 63 are respectively engaged with two bearing holes provided in the bearing pieces 52 a and 52 b of the bearing block portion 52. By supporting the protruding portions at both ends of the rotation shaft 50 with the bearing block portion 52, the holder member 7 is rotatably supported by the first slide member 4.

  The protruding portion at one end of the rotating shaft 50 protrudes larger than the protruding portion at the other end, and the leading end side of the vibration-proof drive regulating cam 12 provided on the fixing member 2 is opposed to the protruding end. When the image blur correction apparatus 1 is retracted, if the base member 3 moves in a direction approaching the fixed member 2, the tip end portion of the rotation shaft 50 comes into contact with the taper guide 15 provided at the tip end of the anti-vibration drive restriction cam 12. Then, the rotating shaft 50 is guided by the taper guide 15 and moves to the axial center side of the bearing portion 63, and is fitted into the axial hole 14 provided in the axial center portion. As a result, the rotation center of the holder member 7 is held by the anti-vibration drive restriction cam 12, and the rotation shaft 50 is positioned at a predetermined position. At the restriction position, the holder member 7 has the axial hole 14 as the rotation center. The first slide member 4 is rotatably held.

  In this case, the size of the maximum diameter portion of the taper guide 15 is set to be larger than the maximum moving range of the first slide member 4 and the second slide member 5. For this reason, even when the auxiliary lens is displaced the most due to camera shake or the like, when the base member 3 moves in the retracted direction, the tip of the rotating shaft 50 is always in contact with the tapered surface of the taper guide 15. As a result, the rotation shaft 50 is always guided to the axial center side, and when the taper surface of the taper guide 15 is completely slid, the rotation shaft 50 is fitted into the axial hole 14 and placed at the position of the vibration-proof drive regulating cam 12. Is positioned.

  Further, as shown in FIG. 5 and the like, a torsion spring 65 is attached to the bearing portion 63 of the holder member 7. As shown in FIG. 6, the torsion spring 65 includes a winding portion 65a formed by winding a plurality of times in a ring shape, and two elastic pieces 65b and 65c that are continuous at both ends of the winding portion 65a. have. The first elastic piece 65b and the second elastic piece 65c are each formed to be bent in an L shape, and are formed so as to face each other with the concave side of each of the bent portions inside. A winding portion 65 a of the torsion spring 65 is fitted to the bearing portion 63, and the first elastic piece 65 b is locked to a spring receiving convex portion 67 provided on the arm portion 62.

  The second elastic piece 65c of the torsion spring 65 is engaged with the side piece 52c of the bearing block 52, and the spring force of the torsion spring 65 causes the holder member 7 to have the rotation shaft 50 as the rotation center as shown in FIG. Is biased counterclockwise. The rotation of the holder member 7 due to the spring force of the torsion spring 65 is restricted by bringing the stopper convex portion 64 into contact with the stopper pin 56. And when the stopper convex part 64 contact | abuts to the stopper pin 56, it is comprised so that the optical axis of the correction lens 6 may correspond with the optical axis CL of an optical system.

  Further, the bearing 63 is provided with a cam lever 66 for rotating the holder member 7. The cam lever 66 is formed so as to protrude from the side surface of the bearing portion 63 to the side which is a direction substantially orthogonal to the direction connecting the stopper convex portion 64 and the rotation shaft 50. The cam lever 66 is opposed to the distal end side of the retraction position control cam 13 provided on the fixed member 2. When the image blur correction apparatus 1 is retracted, when the base member 3 moves in a direction approaching the fixed member 2, the cam lever 66 is brought into contact with the tip of the retracted position control cam 13, and the pressing force by the retracted position control cam 13 is applied to the cam lever 66. To the holder member 7. The pressing force of the retraction position control cam 13 increases as the relative movement amount of the base member 3 and the fixed member 2 increases.

  The holder member 7 is rotated about the rotation shaft 50 by the pressing force of the retraction position control cam 13. As a result, the auxiliary lens 6 rotates outwardly away from the optical axis CL of the optical system in the third direction Z according to the rotation amount of the holder member 7 integrated with the cam lever 66, and the photographing position on the optical axis CL. To the retracted position outside the optical axis CL. At this time, since the rotation shaft 50 is positioned by the anti-vibration drive restriction cam 12, the holder member 7 can be easily and reliably rotated even with a relatively small external force due to the pressing force of the retraction position control cam 13. Thus, the auxiliary lens 6 can be moved to the retracted position.

  The first position detection sensor 26A and the second position detection sensor 26B described above constitute a camera shake detection unit. The third guide portion includes the holder member 7 having the rotation shaft 50, the bearing block portion 52 that rotatably supports the rotation shaft 50, the anti-vibration drive restriction cam 12, and the retraction position control cam 13. Is configured.

  The image blur correction apparatus 1 having such a configuration can be assembled as follows, for example. The assembly procedure of the image blur correction apparatus 1 is not limited to that described in this embodiment. As shown in FIG. 7, two coils 8A and 8B and two position detection sensors 26A and 26B are attached in advance to a predetermined position of the base member 3, and the two magnets 9A and 9B are attached to the first slide member 4. Install it in place. The correction lens 6 is attached to the holding frame 61 of the holder member 7.

  Next, the second slide member 5 is assembled to the first slide member 4. First, the surface without the first main shaft fixed bearing 31 of the second slide member 5 is made to face the surface with the first main shaft slide bearing 32 of the first slide member 4, and two of the first main shaft slide bearing 32 are arranged. The bearing pieces 32a and 32b are fitted into the two fitting holes 54a and 54b. Next, the bearing holes provided in the two bearing pieces 31a and 31b of the first spindle fixed bearing 31 are aligned with the bearing holes provided in the two bearing pieces 32a and 32b, and the first guide spindle 41 is inserted into these bearing holes. Let Then, both ends of the first guide main shaft 41 are fixedly supported by two bearing pieces 31a and 31b. As a result, the first slide member 4 and the second slide member 5 move the first guide main shaft 41 by a predetermined gap set between the first main shaft fixed bearing 31 and the first main shaft slide bearing 32. It is connected so as to be relatively movable in the axial direction.

  Next, the holder member 7 that holds the auxiliary lens 6 is assembled to the first slide member 4. The torsion spring 65 is previously attached to the bearing portion 63 of the holder member 7, and the bearing portion 63 is inserted into the space of the bearing block portion 52 of the first slide member 4. And the bearing hole of the bearing part 63 is made to correspond to the bearing hole provided in the two bearing pieces 52a and 52b of the bearing block part 52, the rotating shaft 50 is inserted in these bearing holes, and the two bearing pieces 52a and 52b are used. The rotating shaft 50 is supported at both ends. At this time, one end of the rotation shaft 50 is protruded largely to the surface side of the first slide member 4 having the recesses 53a and 53b.

  Further, the first elastic piece 65 b is engaged with the second elastic piece 65 c of the torsion spring 65, which is engaged with the spring receiving projection 67 of the holder member 7, and is engaged with the side piece 52 c of the bearing block portion 52. The holding frame 61 side of the holder member 7 is urged toward the through hole 51 side by the spring force. Thereby, the stopper convex part 64 provided in the holder member 7 contacts the stopper pin 56 provided in the first slide member 4. As a result, the holder member 7 is positioned at a predetermined position on the optical axis CL side, and the correction lens 6 held by the holding frame 61 is disposed at a substantially central portion of the through hole 51.

  Next, a slide member assembly configured by assembling the second slide member 5 and the holder member 7 to the first slide member 4 is assembled to the base member 3. First, the slide member assembly is disposed at a predetermined position in the cylindrical side surface portion 22 of the base member 3. At this time, the first stage portion 4 a and the second stage portion 4 b of the first slide member 4 are caused to face the inner overhanging portion 24 of the base member 3. Then, the second stage portion 4 b of the first slide member 4 and the second spindle sliding bearing 34 of the second slide member 5 are provided with the bearing piece 33 a and the bearing portion of the second spindle fixed bearing 33 provided on the base member 3. 33b. Further, the first countershaft sliding piece 37 provided on the first slide member 4 is interposed between the two bearing pieces 35 a and 35 b of the first countershaft fixed bearing 35, and the second slide member 5 is provided with a first slide. The two countershaft sliding piece 38 is interposed between the two bearing pieces 36 a and 36 b of the second countershaft fixed bearing 36.

  Next, the bearing holes provided in the two bearing pieces 35a and 35b of the first countershaft fixed bearing 35 are aligned with the bearing grooves 55 provided in the first countershaft sliding piece 37, and the bearing holes and the bearing grooves are aligned with each other. One guide countershaft 43 is inserted, and both ends of the first guide countershaft 43 are fixedly supported by the first countershaft fixed bearing 35. Thus, the first countershaft sliding piece 37 is slidably supported by the base member 3 via the first guide countershaft 43. Similarly, the bearing holes provided in the two bearing pieces 36a and 36b of the second countershaft fixed bearing 36 and the bearing grooves 58 provided in the second countershaft sliding piece 38 are made to coincide with each other, and the bearing holes and the bearing grooves are aligned with each other. The two guide countershaft 44 is inserted, and both ends of the second guide countershaft 44 are fixedly supported by the second countershaft fixed bearing 36. Thus, the second countershaft sliding piece 38 is slidably supported by the base member 3 via the second guide countershaft 44.

  Further, the bearing holes of the bearing pieces 33 a and the bearing portion 33 b provided in the base member 3 are matched with the bearing holes of the two bearing pieces 34 a and 34 b provided in the second slide member 5. The second guide main shaft 42 is inserted into these bearing holes, and both ends of the second guide main shaft 42 are fixedly supported by the second main shaft fixed bearing 33. As a result, one side in the first direction X of the second slide member 5 is slidably supported by the base member 3 via the second guide main shaft 42. Thereby, the assembly work of the image blur correction apparatus 1 is completed.

  In this case, as shown in FIGS. 12 and 13, the first magnet 9 </ b> A fixed to the first slide member 4 overlaps the first coil 8 </ b> A fixed to the inner overhang portion 24 of the base member 3. Opposed. Similarly, the second magnet 8B fixed to the first slide member 4 is opposed to the second coil 8B fixed to the inner projecting portion 24 so as to overlap. Further, as shown in FIGS. 9 and 10, the slide restricting pin 28 provided in the inner overhang portion 24 is inserted into the movement restricting recess 57 provided in the first slide member 4. Since a predetermined gap is set between the slide restriction pin 28 and the movement restriction recess 57, the first slide member 4 is relative to the base member 3 in all directions within the gap. It is configured to be movable.

  The operation of the image blur correction apparatus 1 having such a configuration is, for example, as follows. 10 to 12 show a state before image blur due to camera shake or the like occurs. In this state, the optical axis of the auxiliary lens 6 coincides with the optical axis CL of the optical system. At this time, the first slide member 4 is disposed at a substantially central portion of the space portion surrounded by the cylindrical side surface portion 22 of the base member 3, and the slide restricting pin 28 is disposed at the central portion of the movement restricting recess 57. . At this time, the second slide member 5 is held at an initial predetermined position by the connection relationship with the first slide member 4.

  FIG. 13 shows a state in which image blur due to camera shake or the like occurs, and in order to correct the image blur, the first slide member 4 moves to the left end and the second slide member 5 moves to the lower end. . According to Fleming's law, such an operation operates the first drive unit to move the first slide member 4 to the left side, and operates the second drive unit to lower the second slide member 5. It is executed by moving to the side.

  That is, in the first drive unit, the first magnet 9A is caused to pass a current through the first coil 8A so that a force toward the left side in FIG. 12 is generated. In the second drive section, the second magnet 9B is caused to pass a current through the second coil 8B so that a downward force is generated in FIG. As a result, the auxiliary lens 6 is tilted at an angle of 45 degrees with respect to the first direction X and the second direction Y by the combined action of the operation by the first drive unit and the operation by the second drive unit. Moved. As a result, the image blur correction apparatus 1 changes from the state shown in FIG. 12 to the state shown in FIG. 13, and image blur due to camera shake or the like can be corrected. FIG. 14 shows a state in which the correction lens 6 is retracted from the photographing position on the optical axis CL of the optical system (state of FIG. 12) and moved to a retracted position outside the optical axis.

  15 and 16 are sectional views showing a schematic configuration of an embodiment of the lens barrel device 100 including the image blur correcting device 1 having the above-described configuration. FIG. FIG. 16 shows an expanded state during photographing. The lens barrel device 100 includes a fixed ring 101, a cam ring 102 that is rotatable about the fixed ring 101 and movable in the direction of the optical axis CL, and a rectilinear ring that is held inside the cam ring 102. As a base member 3. A first group lens holding frame 103 is attached to the tip of the cam ring 102, and a first group lens 111 is held at the center of the first group lens holding frame 103. A second group lens holding frame 104 is held behind the first group lens holding frame 103 so as to be movable in the optical axis direction, and a second group lens 112 is held at the center of the second group lens holding frame 104.

  A base member 3 is held behind the second group lens 112 in the optical axis direction so as to be movable in the optical axis direction. A fourth group lens 114 held by the fourth group lens holding frame 105 is held behind the base member 3 in the optical axis direction so as to be movable in the optical axis direction. An imaging element 120 fixed to the fixing member 2 is disposed behind the fourth group lens 114. The image sensor 120 is provided so that a substantially central portion of the light receiving surface thereof is positioned on the optical axis CL of the optical system. An optical component such as an infrared filter 121 is disposed in front of the light receiving surface of the image sensor 120. As the imaging device 120, for example, a CCD (charge coupled device), a CMOS image sensor, or the like can be applied.

  The retracting operation of the auxiliary lens 6 in the lens barrel device 100 is performed through operations as shown in FIGS. 17A to 17C, for example. 17A shows a state before the start of the save operation, FIG. 17B shows a state during the save operation, and FIG. 17C shows a state after the end of the save operation.

  As shown in FIG. 17A, before starting the retracting operation, there is a gap of an appropriate size between the image stabilizing drive restricting cam 12 and the rotating shaft 50, and the retracting position control cam 13 and the holder member 7 A gap of an appropriate size is also set between the cam lever 66 and the cam lever 66. From the state shown in FIG. 17A, when the lens barrel device 100 starts to retract, the base member 3 moves in a direction approaching the fixed member 2. When the tip of the rotation shaft 50 comes into contact with the taper guide 15 provided at the tip of the anti-vibration drive restricting cam 12, the rotation shaft 50 is guided to the taper surface and moves to the center portion. It enters into the direction hole 14. In this case, the outer diameter of the taper guide 15 is set to be larger than the moving range of the first slide member 4 and the second slide member 5. Therefore, the tip of the rotation shaft 50 is always brought into contact with the taper guide 15 and fitted into the axial hole 14.

  When the rotating shaft 50 is further fitted in the axial hole 14 in the retracting direction, the tip of the retracting position control cam 13 is then brought into contact with the cam lever 66, and the retracting position control cam 13 moves the cam lever 66. Press. Thereby, the holder member 7 is rotated clockwise around the rotation shaft 50 in FIG. 17B against the spring force of the torsion spring 65. Then, as shown in FIG. 17C, the auxiliary lens 6 is moved from the photographing position on the optical axis CL of the optical system to the retracted position outside the optical axis.

  As a result, as shown in FIG. 16, from the state where all of the fourth group lenses are arranged on the optical axis CL, as shown in FIG. 15, the third group lens (auxiliary lens 6) of the four group lenses is changed to the optical axis. It changes to the state moved out of CL. Therefore, by moving the second group lens 112 to the space formed by the movement of the third group lens (auxiliary lens 6), the lens barrel device 100 is retracted by the thickness of the third group lens (auxiliary lens 6). The thickness in the optical axis direction can be reduced.

  FIG. 18 shows a digital camera 200 showing an embodiment of an imaging apparatus provided with the lens barrel device 100 having the image blur correction device 1 described above. The digital camera 200 includes a case 201 constituting an exterior and a lens barrel device 100 as a retractable lens device attached to the case 201. A lens barrel device 100 containing an optical system is provided at a location near the front right side of the case 201. FIG. 18 shows a usage state (wide angle position, telephoto position, and intermediate position between wide angle and telephoto) in which the lens barrel device 100 is extended. From this state, the lens barrel device 100 is moved backward to enter the retracted state (accommodating position) so that the front surface of the case 201 and the front surface of the lens barrel device 100 are substantially flush with each other.

  On the upper surface of the case 201 and on the side opposite to the lens barrel device 100, a shutter button 202, a mode selection dial 204, and the like are provided. A flash unit 203 that emits flash light from the flash device is provided at the upper front of the case 201. On the back of the case 201 (not shown), there are provided a display for displaying captured images and operation functions, and a plurality of operation switches for performing power supply on / off, switching between shooting mode and playback mode, and other operations. It has been. Further, inside the case 201, an image processing unit that generates image data based on an imaging signal output from the imaging device and records it in a storage medium such as a memory card, a display processing unit that displays the image data on a display, A control unit for operating these processing units and the like is incorporated. The control unit includes a CPU that controls the image processing unit, the display processing unit, the driving unit, and the like in accordance with the operation of the operation switch and the shutter button 202.

  By using the collapsible lens barrel device 100 for the digital camera 200 having such a configuration, it is possible to easily extend and retract by reducing the operating load, and to reduce the thickness in the optical axis direction when retracted. Can be thinned. Thereby, the whole apparatus can be reduced in thickness and size when retracted.

  As described above, the present invention is not limited to the above-described embodiments, and various modifications can be made without departing from the gist of the present invention. For example, in the above-described embodiment, an example in which the present invention is applied to a digital camera has been described. However, the present invention can be applied to a surveillance camera, a vehicle-mounted camera, a video phone, a personal computer camera, and other various imaging devices. In the above-described embodiment, an example in which the correction lens is moved to the photographing position and the retracted position has been described. However, instead of the correction lens, an imaging element may be moved to the photographing position and the retracted position.

DESCRIPTION OF SYMBOLS 1 ... Image blur correction apparatus, 2 ... Fixed member, 3 ... Base member, 4 ... 1st slide member, 5 ... 2nd slide member, 6 ... Correction lens (3 group lens), 7 ... Holder member, 8A, 8B ... Coil, 9A, 9B ... Magnet, 12 ... Anti-vibration drive regulating cam, 13 ... Retraction position control cam, 14 ... Axial hole, 15 ... Tapered guide, 21 ... Plate end face, 22 ... Cylindrical side face, 24 ... inner overhanging part, 26A, 26B ... position detection sensor, 28 ... slide restricting pin, 31 ... first main shaft fixed bearing, 31a31b, 32a, 32b, 33a, 34a, 34b, 35a, 35b, 36a, 36b ... bearing piece 32 ... 1st main shaft sliding bearing, 33 ... 2nd main shaft fixed bearing, 34 ... 2nd main shaft sliding bearing, 35 ... 1st secondary shaft fixed bearing, 36 ... 2nd secondary shaft fixed bearing, 37 ... 1st secondary shaft Shaft sliding piece, 38 Second countershaft sliding piece, 41 ... first guide main shaft, 42 ... second guide main shaft, 43 ... first guide countershaft, 44 ... second guide subshaft, 50 ... rotating shaft, 52 ... bearing block portion, 54a, 54b ... fitting hole, 55, 58 ... bearing groove, 56 ... stopper pin, 57 ... movement restricting recess, 61 ... holding frame, 64 ... stopper convex, 65 ... torsion spring (elastic member), 66 ... cam lever, DESCRIPTION OF SYMBOLS 100 ... Barrel apparatus, 120 ... Imaging element, 200 ... Digital camera (imaging apparatus), 201 ... Case (imaging apparatus main body)

Claims (5)

A correction lens that corrects the optical axis of the optical system or a holder member that holds an imaging device;
A camera shake detection unit for detecting camera shake;
A first guide portion for guiding movement of the holder member in a first direction on a plane orthogonal to the optical axis;
A second guide portion for guiding movement of the holder member in a second direction orthogonal to the first direction on a plane orthogonal to the optical axis;
A third guide portion for guiding movement of the holder member in a third direction on a plane orthogonal to the optical axis;
A first drive unit that moves the holder member in the first direction according to a detection result of the camera shake detection unit;
A second drive unit that moves the holder member in the second direction according to a detection result of the camera shake detection unit,
The first guide portion has a first guide shaft that overlaps the second driving portion in a front view in the optical axis direction ,
The second guide portion has a second guide shaft that overlaps the first driving portion in the optical axis direction front view ,
The holder member is positioned on the optical axis by the third guide portion and outside the optical axis, and the first drive portion, the first guide shaft, the second drive portion, and the second guide shaft It is possible to move to a retreat position that avoids interference ,
The third guide portion is
A rotation axis for rotating the holder member on a plane orthogonal to the optical axis;
A retraction position control cam that moves the correction lens or the image sensor from the photographing position to the retraction position by rotating the holder member about the rotation axis;
An anti-vibration drive restriction cam that engages with the turning shaft and restricts the turning position of the holder member;
The anti-vibration drive restriction cam is composed of a cylindrical shaft portion provided with an axial hole extending in the axial direction in the axial center portion, and a tapered guide formed in a mortar shape is provided at an opening portion of the axial hole,
After regulating the pivot position of the pivot shaft with the anti-vibration drive regulating cam, the retracting position control cam is operated to move the correction lens or the image sensor from the photographing position to the retracted position. > Image blur correction device. The anti-vibration drive regulating cam is
The center of the optical axis or the imaging element of the correction lens, or on the optical axis of the optical system, or an image of claim 1 wherein to work when farthest from the optical axis Blur correction device. The holder member is provided with an elastic member that biases the correction lens or the image sensor toward the optical axis,
The elastic by the spring force of member, the correcting lens or the image blur correction apparatus according to claim 1 or 2, wherein the imaging element was energized in the shooting position. The rotation shaft is disposed on the opposite side of the first drive unit and the second drive unit with the optical axis as a center, and the correction lens or the image sensor is retracted on the opposite side. Item 2. The image blur correction device according to Item 1 . A lens barrel device provided with an image blur correction device having a correction lens or an image sensor for correcting the optical axis of the optical system;
An imaging device main body to which the lens barrel device is fixedly or detachably attached, and
The image blur correction device includes:
A correction lens that corrects the optical axis of the optical system or a holder member that holds an imaging device;
A camera shake detection unit for detecting camera shake;
A first guide portion for guiding movement of the holder member in a first direction on a plane orthogonal to the optical axis;
A second guide portion for guiding movement of the holder member in a second direction orthogonal to the first direction on a plane orthogonal to the optical axis;
A third guide portion for guiding movement of the holder member in a third direction on a plane orthogonal to the optical axis;
A first drive unit that moves the holder member in the first direction according to a detection result of the camera shake detection unit;
A second drive unit that moves the holder member in the second direction according to a detection result of the camera shake detection unit,
The first guide portion has a first guide shaft that overlaps the second driving portion in a front view in the optical axis direction ,
The second guide portion has a second guide shaft that overlaps the first driving portion in the optical axis direction front view ,
The holder member is positioned on the optical axis by the third guide portion and outside the optical axis, and the first drive portion, the first guide shaft, the second drive portion, and the second guide shaft It is possible to move to a retreat position that avoids interference ,
The third guide portion is
A rotation axis for rotating the holder member on a plane orthogonal to the optical axis;
A retraction position control cam that moves the correction lens or the image sensor from the photographing position to the retraction position by rotating the holder member about the rotation axis;
An anti-vibration drive restriction cam that engages with the turning shaft and restricts the turning position of the holder member;
The anti-vibration drive restriction cam is composed of a cylindrical shaft portion provided with an axial hole extending in the axial direction in the axial center portion, and a tapered guide formed in a mortar shape is provided at an opening portion of the axial hole,
After regulating the pivot position of the pivot shaft with the anti-vibration drive regulating cam, the retracting position control cam is operated to move the correction lens or the image sensor from the photographing position to the retracted position. > Imaging device.

Images