JPWO2014156632A1 - Lens barrel and imaging device - Google Patents

Abstract

Provided are a lens barrel that has a simple configuration and is capable of correcting an image blur at the time of photographing and retracting from the optical axis at the time of retracting, and is excellent in energy saving, and an imaging apparatus using the lens barrel. At the time of image blur correction, the moving body 122 rotates and slides in a plane perpendicular to the optical axis with respect to the support shaft 125, and at the time of retraction, the moving body 122 rotates largely around the support shaft 125. By using 125 in common, the configuration to be driven is simplified and the mass thereof is reduced, so that power consumption during driving is reduced and energy saving can be achieved.

Description

  The present invention relates to a lens barrel and an imaging apparatus, and more particularly, to a lens barrel that can be corrected for image blur and retracts, and an imaging apparatus using the same.

  As a collapsible lens barrel, there is a lens barrel in which some lens groups are retracted outside the optical axis when retracted in order to shorten the length in the optical axis direction when retracted. On the other hand, there is also known a lens barrel in which an image blur correcting lens group can be driven in a direction orthogonal to the optical axis in order to correct camera shake during photographing. A lens barrel having both such a retractable function and a camera shake correction function is disclosed in Patent Document 1.

  In the lens barrel shown in Patent Document 1, the third lens group LG3 and the fourth lens group LG4 are positioned apart from each other in the optical axis direction in the photographing state, and the second stage that holds the third lens group LG3 is provided in the second stage. Image blur correction is performed by driving in the direction orthogonal to the optical axis on one stage 30. On the other hand, during storage, the second stage 31 is moved in the direction perpendicular to the optical axis (Y direction) with respect to the first stage 30, and the third lens group LG3 moved away from the optical axis and the fourth lens remaining on the optical axis O. The length of the optical axis direction is shortened by positioning the lens group LG4 in the Y direction.

JP 2011-215389 A Japanese Patent No. 4830512

  However, in the configuration of Patent Document 1, since the first stage 30 and the second stage 31 are moved together in the X direction at the time of image blur correction, the driving mechanism becomes complicated and large, and the driving power increases. There is a problem that energy saving cannot be achieved.

  On the other hand, Patent Document 2 discloses a configuration in which the shake correction lens group chamber 19 is retracted in the direction orthogonal to the optical axis by swinging around the rotation axis of the vibration frame 17 when retracted. However, since the vibration frame 17 is driven in the direction orthogonal to the optical axis with respect to the fixed frame 16 at the time of image blur correction, the driving mechanism becomes large and the driving power is large as in Patent Document 1. There is a problem that energy saving cannot be achieved.

  The present invention has been made to solve the above-mentioned problems, and has a simple configuration, enables image blur correction during photographing and retraction from the optical axis during collapsing, and is a lens barrel excellent in energy saving. And it aims at providing the imaging device using the same.

The lens barrel according to the present invention is:
A plurality of lens groups including a correction lens group for correcting image blur;
A movable lens barrel that can be retracted by moving in the direction of the optical axis;
A fixed cylinder disposed outside the movable lens barrel;
A spindle provided in the movable lens barrel;
A lens frame that rotates and slides with respect to the support shaft to hold the correction lens group movably in a plane perpendicular to the optical axis;
A first drive unit that moves the lens frame in a plane orthogonal to the optical axis during image blur correction; and, when retracted, the lens frame is rotated about the support shaft to a greater extent than during image blur correction. And a second drive unit.

  According to the present invention, the first drive unit moves the lens frame in a plane orthogonal to the optical axis with respect to the support shaft during image blur correction, and the second drive unit moves the lens frame to the support shaft when retracted. Since the rotation is larger than that at the time of image blur correction, the drive structure can be simplified by using a common support shaft, and the mass is reduced, so that power consumption during driving is reduced. Can shorten the lens barrel when retracted.

  An image pickup apparatus according to the present invention includes the lens barrel described above and an image pickup element that photoelectrically converts an image formed by the lens group.

  According to the present invention, it is possible to provide an image blur correction function at the time of photographing and a lens barrel that can be retracted from the optical axis at the time of retraction and has excellent energy saving and an imaging device using the same with a simple configuration. .

1A and 1B are external views of a digital camera that is an example of an imaging apparatus including a lens unit according to the present embodiment, in which FIG. 1A is a front view of the digital camera, and FIG. It is a perspective view of the lens unit 100 containing the lens barrel concerning this embodiment, and shows the state at the time of imaging | photography. It is a perspective view of the lens unit 100 containing the lens barrel concerning this embodiment, and shows the state at the time of collapse. It is the figure which cut | disconnected the structure of FIG. 2 by the IV-IV line and looked at the arrow direction. It is sectional drawing of the same direction which shows the state at the time of collapse. It is a figure which shows the locus | trajectory of the lens group at the time of zooming. 7A is a view of the configuration of FIG. 4 cut along the AA line and viewed in the direction of the arrow. FIG. 7B is a view of the configuration of FIG. 4 cut along the BB line and viewed in the direction of the arrow. It is a figure and shows the state at the time of imaging. 8A is a cross-sectional view similar to FIG. 7A showing the state when retracted, and FIG. 8B is a cross-sectional view similar to FIG. 7B illustrating the state when retracted. is there. 9A is a diagram in which only main components are taken out from FIG. 7A, FIG. 9B is a diagram in which only main components are taken out from FIG. 7B, and FIG. It is the figure which looked at the structure of b) in the arrow C direction, (d) is the figure which looked at the structure of (b) in the arrow DC direction. FIG. 10A is a perspective view showing a mechanism for retracting the moving body when retracted, and FIG. 10B is a cross-sectional view.

  Hereinafter, embodiments of the present invention will be described with reference to the drawings. FIG. 1 is an external view of a digital camera that is an example of an imaging apparatus including a lens barrel and an imaging element according to the present embodiment. FIG. 1A is a front view of the digital camera 1, and FIG. 1B is a rear view.

  As shown in FIGS. 1A and 1B, the digital camera 1 includes a lens barrel that holds a zoom lens, an imaging unit 2 having an imaging device, and a camera body unit 3.

  The imaging unit 2 includes a lens barrel that holds a zoom lens capable of zooming operation and a solid-state imaging device such as a CCD or a CMOS as shown in an embodiment described later, and forms an image via the zoom lens in the lens barrel. The subject image thus converted is converted into an image signal by a solid-state imaging device.

  The camera body unit 3 includes an LCD display unit 6 including an LCD (Liquid Crystal Display), an EVF (Electronic View Finder) 7, and external connection terminals for connecting the digital camera 1 to a personal computer (not shown). The image signal captured by the imaging unit 2 is subjected to predetermined signal processing, image display on the LCD display unit 6 and EVF 7, image recording on a recording medium such as a memory card (not shown), or a personal computer Processing such as transferring an image to.

  On the front surface of the camera body 3, a flash light emitting unit 4 is provided at an appropriate upper position. Further, an LCD display unit 6 and an EVF 7 are provided on the back side of the camera body unit 3 for displaying captured images and reproducing and displaying recorded images.

  On the upper surface of the camera body 3, there are provided a shutter button 5 and a shooting mode changeover switch (not shown) that switches between “recording mode” and “reproduction mode” near the shutter button 5. The recording mode is a mode for taking a picture from the shooting standby state through the exposure control process, and the playback mode is a mode for reproducing and displaying the shot image recorded on the memory card on the LCD display unit 6 and the EVF 7. is there.

  On the back surface of the camera body 3, a playback frame advance switch / zoom switch 9 is provided for frame playback of playback images and zoom operations during shooting. The frame advance of the playback image by the playback frame advance switch / zoom switch 9 is to set the camera to the playback mode and sequentially display the images recorded on the memory card on the LCD display unit 6 together with the frame number. Note that it is possible to instruct to change the image display on the LCD display unit 6 in the ascending order direction (direction of photographing order) or the descending order direction (direction opposite to the photographing order). Further, the zoom operation at the time of shooting is performed by operating the playback frame advance switch / zoom switch 9 to change the magnification of the imaging optical system, which is a zoom lens, in the tele direction or the wide direction.

  Further, an EVF changeover switch 8 for selecting an LCD display unit 6 and an EVF 7 for displaying an image is provided on the back surface of the camera body unit 3.

  In addition, a battery (not shown) as a power source for operating the digital camera 1 is provided inside the bottom surface of the camera body 3.

  2 and 3 are perspective views of the lens unit 100 including the lens barrel according to the present embodiment. FIG. 2 shows a state during photographing, and FIG. 3 shows a state when retracted. 4 is a view of the configuration of FIG. 2 taken along line IV-IV and viewed in the direction of the arrow, showing a state at the time of photographing, and FIG. 5 is a cross-sectional view in the same direction showing a state at the time of collapsing.

  The lens unit 100 according to the present embodiment will be described using a zoom lens having a three-group configuration as an example. The lens unit 100 includes a first lens group L1, a second lens group (correction lens group) L2, and a third lens group L3 in order from the object side. Then, the first lens group L1, the second lens group L2, and the third lens group L3 move in the direction of the optical axis O while performing mutual zooming while changing the distance between the groups. The third lens unit L3 independently moves in the direction of the optical axis O to perform focusing.

  A schematic configuration of the lens unit 100 will be described with reference to FIG. The base plate 101 fixed to the camera body 3 has an opening 101a at the center and holds an IR cut filter 102 on the object side. A fixed cylinder 104 is attached to the base plate 101. A cam groove and a straight guide groove (not shown) are provided on the inner peripheral surface of the fixed cylinder 104.

  The first rotating cylinder 105 is a cylinder housed on the inner diameter side of the fixed cylinder 104, and a rotational force is obtained by an actuator (not shown) via a gear portion (not shown) provided on the outer periphery of the image side to the fixed cylinder 104. It rotates with respect to it, and it moves to an optical axis direction by engagement with the cam pin not shown provided in the outer surface, and the above-mentioned cam groove.

  A through-hole through which a rotation transmission key (not shown) and a cam pin of the second rotary cylinder 109 pass is provided on the inner periphery of the first rotary cylinder 105. The first rectilinear guide 106 provided inside the first rotating cylinder 105 is bayonet-coupled to the first rotating cylinder 105, engages with the rectilinear guide groove of the fixed cylinder 104, and does not rotate. Along with 105, it moves in the optical axis direction. On the inner periphery of the first rectilinear guide 106, a rectilinear guide groove that engages with the second rectilinear guide 107, a cam groove of the second rotary cylinder 109, and a rectilinear guide groove for the rectilinear key ring 110 are formed.

  A second rectilinear guide 107 is provided inside the first rectilinear guide 106 and is connected to the second rotating cylinder 109 and bayonet so as to move in the optical axis direction together with the second rotating cylinder 109 without rotating. It has become. Further, a rectilinear guide groove that engages with the first holding cylinder 108 that holds the first lens unit L <b> 1 is provided inside the second rectilinear guide 107.

  The first holding cylinder 108 does not rotate by the rectilinear guide groove of the second rectilinear guide 107 but moves in the optical axis direction by engaging with the cam groove on the outer periphery of the second rotating cylinder 109.

  A second rotating cylinder 109 is provided inside the first holding cylinder 108. The second rotating cylinder 109 is engaged with a groove formed on the inner periphery of the first rotating cylinder 105 with the follower pin portion protruding from the outer periphery of the end portion, and rotates together with the rotating cylinder 105. The first linear guide 106 is engaged with the cam so as to move in the optical axis direction. The second rotary cylinder 109 is coupled to the straight key ring 110 with a bayonet. A cam for driving the second holding cylinder 111 is formed on the inner periphery of the second rotating cylinder 109.

  The rectilinear key ring 110 is not rotated by the rectilinear guide groove of the first rectilinear guide 106, but is moved integrally with the second rotating cylinder 109 in the optical axis direction by being coupled with the bayonet.

  Inside the second rotating cylinder 109, a second holding cylinder (moving lens barrel) 111 that holds the second lens unit L2 is provided. The second holding cylinder 111 does not rotate when engaged with the linear key ring 110, but moves in the optical axis direction when engaged with the second rotating cylinder 109.

  A shutter mechanism 112 is provided on the object side of the second holding cylinder 111. The third holding cylinder 113 that holds the third lens group L3 can be moved in the optical axis direction independently of other lens groups by a stepping motor (not shown) or the like.

  With the configuration described above, the first lens group L1 held by the first holding cylinder 108 and the second holding cylinder 111 holding the second lens group L2 are rotated at the wide-angle end by rotating the first rotating cylinder 105. The third holding cylinder 113 that moves in the optical axis direction so that the inter-group distance can be changed in accordance with the diagram shown in FIG. 6 according to the zooming between the zoom lens and the telephoto end, and holds the third lens unit L3 is stepping. The distance between the groups can be changed in the optical axis direction independently by a motor or the like according to the diagram shown in FIG. On the other hand, when retracted, the third holding cylinder 113 is moved so as to approach the base plate 101, and the first holding cylinder 108, the second holding cylinder 111, and the like are rotated in the reverse direction. Move so as to approach the main plate 101. At this time, the second lens unit L2 held by the second holding cylinder 111 is retracted in the direction perpendicular to the optical axis, thereby narrowing the distance in the optical axis direction between the first holding cylinder 108 and the third holding cylinder 113. And more compact storage is possible. Hereinafter, a configuration for retracting the second lens unit L2 held in the second holding cylinder 111 in the direction orthogonal to the optical axis will be described.

  FIGS. 7A and 8A are views in which the configuration of FIG. 4 is cut along the AA line and the shutter mechanism 112 is removed in the direction of the arrow, and FIGS. 7B and 8B. FIG. 4 is a view of the configuration of FIG. 4 cut along the BB line and viewed in the direction of the arrow, FIG. 7 shows a state during imaging, and FIG. 8 shows a state during collapse. FIG. 9A is a diagram in which only main components are extracted from FIG. 7A, and FIG. 9B is a diagram in which only main components are extracted from FIG. 7B. For the sake of explanation, the vertical direction in the figure is the Y direction, and the horizontal direction is the X direction.

  As shown in FIG. 9A, a thick boss portion 122e is formed on the plate portion 122b of the moving body 122 that holds the second lens group L2, which is a correction lens group, and a long hole 122f is formed at the center thereof. Is formed. The elongated hole 122f is engaged with a support shaft 125 planted in the second holding cylinder 112. The support shaft 125 extending in the optical axis direction is fitted in the width direction (Y direction in the drawing) of the long hole 122f and has no backlash with the long hole 122f, but in the longitudinal direction (X direction in the drawing) of the long hole 122f. , Can be slid by play. That is, the movable body 122 can be rotated about the support shaft 125 and slid in the longitudinal direction.

  As shown in FIGS. 7 and 8, the two round rod-shaped guide shafts 120 and 121 having both ends attached to the inner periphery of the cylindrical second holding cylinder 112 each have an axis in a plane perpendicular to the optical axis. Are arranged as follows. The first guide shaft 120 extends in the Y direction, and the second guide shaft 121 is arranged to intersect the first guide shaft 120 at an acute angle.

  A moving body (lens frame) 122 is disposed on the object side of the guide shafts 120 and 121. The moving body 122 is integrally formed from a cylindrical portion 122a that holds the second lens unit L2, and a plate portion 122b that extends radially outward from only one side from the end of the cylindrical portion 122a. . The plate portion 122b having a butterfly blade shape has the first magnet MG1 disposed in the rectangular opening of the first region 122c corresponding to one blade, and in the rectangular opening of the second region 122d corresponding to the other blade. The second magnet MG2 is arranged.

  Further, the coils CL <b> 1 and CL <b> 2 are attached to the second holding cylinder 111 on the object side of the guide shafts 120 and 121. At the time of imaging shown in FIG. 7, the first coil CL1 is at a position facing the first magnet MG1 in the optical axis direction, and the second coil CL2 is at a position facing the second magnet MG2 in the optical axis direction. A first Hall element HE1 for detecting the relative displacement between the first coil CL1 and the first magnet MG1 is provided in the vicinity of the first coil CL1, and the second coil CL2 and the second magnet are provided in the vicinity of the second coil CL2. A second Hall element HE2 that detects the amount of relative displacement with MG2 is provided. The first drive unit is configured by the first magnet MG1 and the second magnet MG2 arranged on the moving body 122, and the first coil CL1 and the second coil CL2 arranged on the second holding cylinder 112. By controlling energization to the first coil CL1 and the second coil CL2 of the first drive unit, the lens frame is rotated around the support shaft 125 and slid in the longitudinal direction, and moved in a plane perpendicular to the optical axis. Image blur correction is performed.

  A first slider portion 123 and a second slider portion 124 are provided on the plate portion 122 b of the moving body 122. As shown in FIG. 9D, the first slider portion 123 has a U-shaped cross section including a pair of side surface portions 123a and 123b and a connecting portion 123c that connects the side surface portions 123a and 123b on one side. Semi-cylindrical sliding bearings 123d and 123e made of a material having good sliding properties are formed on the opposing surfaces of the side surfaces 123a and 123b. The plate portion 122b is slidably held with respect to the first guide shaft 120 by the top portions of the sliding bearings 123d and 123e.

  Similarly, as shown in FIG. 9C, the second slider portion 124 has a U-shaped cross section composed of a pair of side surface portions 124a and 124b and a connecting portion 124c that connects the side surface portions 124a and 124b on one side. In addition, semi-cylindrical sliding bearings 124d and 124e made of a material having good sliding properties are formed on the opposing surfaces of the side surfaces 124a and 124b. The plate portion 122b is slidably held with respect to the second guide shaft 121 by the top portions of the sliding bearings 124d and 124e. That is, the moving body 122 is held by the second holding cylinder 111 by the guide shafts 121 and 122 and supported so as to be slidable in the direction perpendicular to the optical axis.

  As shown in FIG. 9B, the moving body 122 has a tongue 122g that protrudes long outward in the radial direction from the cylindrical portion 122a. The object side of the tongue portion 122g is the first slider portion 123, that is, the object side of the tongue portion 122g constitutes the side surface portion 123a. Two protrusions 122h and 122i are formed on the image side surface of the tongue 122g with a gap therebetween.

  FIG. 10A is a perspective view showing a mechanism for retracting the moving body 122 when retracted, and FIG. 10B is a cross-sectional view. As shown in FIG. 10B, a driving body 126 is rotatably disposed around a stepped cylindrical portion 111b coaxial with the support shaft 125. The driving body 126 includes a ring portion 126a that is rotatably fitted to the cylindrical portion 111b, and a long rod 126b and a short rod 126c that protrude radially from the ring portion 126a. The tip of the long bar 126b is disposed between the protrusions 122h and 122i of the tongue 122g, and has a gap so as not to contact the protrusions 122h and 122i during image blur correction. The driving body 126 is urged counterclockwise in FIG. 10 by a winding spring 127.

  An elongated drive piece 128 attached to the main plate 101 (FIG. 2) is arranged on the image side in the optical axis direction of the short rod 126c. The driving piece 128 has a slope 128a at the tip on the object side, and when the second holding cylinder 111 approaches the main plate 101 when retracted, the slope 128a comes into contact with the short bar 126c. The drive body 126 and the drive piece 128 constitute a second drive unit.

  An image blur correction operation at the time of imaging will be described. 7A and 8A, when the second lens group L2 is to be moved in the X direction according to a signal from an acceleration sensor (not shown) during imaging, the first coil CL1 is used. By supplying power, a Lorentz force Fx can be generated between the first magnet MG and the movable body 122 can be moved together with the second lens group L2 in the X direction.

  At this time, as the moving body 122 moves, the first slider 123 moves relative to the first guide shaft 120 engaged on the distal end side of the tongue 122g in the X direction, and the second slider 124 is moved. Moves relative to the second guide shaft 121 in the X direction. Since the sliders 123 and 124 have a U-shaped cross section, the sliders 123 and 124 can be freely moved relative to the guide shafts 120 and 121 as long as the sliders 123 and 124 are not limited to the connecting portions 123c and 124c. Further, since the moving body 122 slides and moves in the X direction along the long hole 122f, the support shaft 125 does not hinder the movement of the moving body 122. The amount of movement of the second lens unit L2 in the X direction is detected by the first Hall element HE1, thereby performing feedback control.

  On the other hand, when the second lens unit L2 is to be moved in the Y direction in response to a signal from an acceleration sensor (not shown) or the like, the Lorentz is connected to the second magnet MG2 by supplying power to the second coil CL2. A force Fy is generated. However, since the moving body 122 is pivotally supported by the support shaft 125, it is not displaced in the Y direction, but instead it rotates clockwise (or counterclockwise) about the support shaft 125. If power is also supplied to the first coil CL1 at this time, the moving body 122 can be moved in the X direction. Therefore, by supplying a predetermined amount of power according to the swinging amount of the moving body 122, the X direction Minutes can be canceled and the second lens unit L2 can be moved only in the Y direction. The amount of movement of the second lens unit L2 in the Y direction is detected by the second Hall element HE2, thereby performing feedback control. That is, the second lens unit L2 can be moved in a plane orthogonal to the optical axis by appropriately controlling the amount of power supplied to the first coil CL1 and the second coil CL2.

  By such rotation and sliding of the moving body 122, the first slider 123 moves relative to the first guide shaft 120, and the second slider 124 moves relative to the second guide shaft 121. Relative movement is performed to move the second lens unit L2 in a plane orthogonal to the optical axis, and image blur correction is performed. Image blur correction is performed within a range in which the long rod 126b of the driving body 126 does not contact the protrusions 122h and 122i.

  Next, the operation when retracted will be described. In FIG. 10A, at the time of photographing, that is, in a state where the lens is not retracted, the driving piece 128 is in a dotted line position and is separated from the short bar 126c of the driving body 126. Here, when the second holding cylinder 111 approaches the main plate 101 by the rotation of the first rotating cylinder 105 for collapsing, the tip of the short bar 126c comes into contact with the inclined surface 128a of the driving piece 128, and the inclined surface 128a By pushing the short bar 126c, the driving body 126 rotates clockwise in FIG. 10 against the urging force of the winding spring 127. Then, the long bar 126b pushes the protrusion 122h, so that the moving body 122 is largely rotated around the support shaft 125 as shown in FIG. At this time, the second slider 124 is detached from the second guide shaft 121 and engaged with the guide portion 129 formed in the second holding cylinder 111, and the first slider 123 is located on the back side of the tongue portion 122g. Since it moves and maintains the state engaged with the 1st guide shaft 120, the mobile body 122 can perform big rotation smoothly. As a result, the second lens unit L2 can be retracted in the direction orthogonal to the optical axis to a greater extent than during image blur correction.

  A part of the outer periphery of the second holding cylinder 111 is notched, and as shown in FIG. 8, when the movable body 122 is in a retracted state, a part of the cylinder part 122a protrudes from the notch. As a result, the second lens group L2 can be largely retracted while the outer diameter of the second holding cylinder 111 is kept small.

  On the other hand, when returning to the imaging state, when the second holding cylinder 111 is separated from the drive piece 128 due to the reverse rotation of the first rotating cylinder 105, the short bar 126c is detached from the inclined surface 128a. As a result, the urging force of the winding spring 127 becomes effective, and the long bar 126b is rotated counterclockwise in FIG. 10. Therefore, when the long bar 126b pushes the projection 122i, the moving body 122 is displaced, and the second lens The optical axis of the group L2 can be returned to the vicinity of the optical axis of the other lens group.

  According to the present embodiment, at the time of image blur correction, the moving body 122 is rotated and slid by the first drive unit with respect to the support shaft 125 to move in a plane perpendicular to the optical axis, and at the time of collapse, the second body Since the movable body 122 is mechanically rotated around the support shaft 125 mechanically by the drive unit, the movable body 122 can be simplified by using the support shaft 125 in common. As a result, the mass of the moving unit 122 can be reduced, power consumption during image blur correction can be reduced, and energy can be saved because it is mechanically retracted when retracted.

  A preferred embodiment will be described. Preferably, the first driving unit is driven by electromagnetic force, and the second driving unit is driven by mechanical engagement. Thereby, the lens frame can be rotated without power consumption when retracted.

  It is preferable that the lens frame protrudes from the outer periphery of the movable lens barrel when retracted. As a result, the outer diameter of the movable lens barrel can be reduced and the size can be reduced.

  The present invention is not limited to the embodiments described in the specification, and other embodiments and modifications are included for those skilled in the art from the embodiments and technical ideas described in the present specification. it is obvious. The description and examples are for illustrative purposes only, and the scope of the invention is indicated by the following claims.

DESCRIPTION OF SYMBOLS 1 Digital camera 2 Image pick-up part 3 Camera main-body part 4 Flash light emission part 5 Shutter button 6 Display part 8 Changeover switch 9 Zoom switch 100 Lens unit 101 Base plate 101a Opening 102 IR cut filter 104 Fixed cylinder 105 1st rotation cylinder 106 1st linear guide 107 Second linear guide 108 First holding cylinder 109 Second rotating cylinder 110 Linear key ring 111 Second holding cylinder 111a Protruding portion 111b Cylindrical portion 112 Shutter mechanism 113 Third holding cylinder 120 First guide shaft 121 Second guide shaft 122 Moving body 122a Tube portion 122b Plate portion 122c First region 122d Second region 122e Boss portion 122f Long hole 122g Tongue portion 122h Protrusion 122i Protrusion 123 First slider portion 123a Side surface portion 123c Connection portion 123d Slide bearing 124 Second slider portion 124a Side surface portion 124c connecting portion 124d slide bearing 125 support shaft 126 drive body 126a ring portion 126b long rod 126c short rod 127 spring 128 drive piece 128a slope 129 guide portion CL1 first coil CL2 second coil HE1 first hall element HE2 second hall element L1 L3 Lens group MG1 First magnet MG2 Second magnet O Optical axis

Claims (4)

A plurality of lens groups including a correction lens group for correcting image blur;
A movable lens barrel that can be retracted by moving in the direction of the optical axis;
A fixed cylinder disposed outside the movable lens barrel;
A spindle provided in the movable lens barrel;
A lens frame that rotates and slides with respect to the support shaft to hold the correction lens group movably in a plane perpendicular to the optical axis;
A first drive unit that moves the lens frame in a plane orthogonal to the optical axis during image blur correction; and, when retracted, the lens frame is rotated about the support shaft to a greater extent than during image blur correction. And a second driving unit.   The lens barrel according to claim 1, wherein the first driving unit is driven by electromagnetic force, and the second driving unit is driven by mechanical engagement.   3. The lens barrel according to claim 1, wherein the lens frame protrudes from an outer periphery of the movable lens barrel when retracted.   An imaging apparatus comprising: the lens barrel according to claim 1; and an imaging element that photoelectrically converts an image formed by the lens group.

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