JP2010096806A - Imaging optical device - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To provide an optical device for photographing that obtains full driving force for rocking a lens drive device on which a lens and an imaging device are mounted, even when it is to be reduced in size and thinned. <P>SOLUTION: The optical device for photographing 1 includes the lens drive device 2, and a camera shake correction mechanism which corrects camera shake by rocking the lens drive device 2. The camera shake correction mechanism includes a rocking drive mechanism for the lens drive device 2, which comprises a coil for driving 23 and a magnet for driving, arranged facing each other. The coil for driving 23 includes a winding part 23a, formed by winding a lead wire around in the peripheral direction, and a pull-out part 23d formed by pulling out a wind-start portion or a wind-finish portion of the coil for driving 23 from the inner peripheral side to the outer peripheral side so as to cross the winding part 23a. An opening 16a for arranging the pull-out part 23d is formed on a coil-attaching member 16, to which the coil for driving 23 is to be attached. <P>COPYRIGHT: (C)2010,JPO&INPIT

Description

  The present invention relates to a photographing optical apparatus having a camera shake correction function for correcting a camera shake by swinging a lens driving device on which a lens and an image sensor are mounted.

  2. Description of the Related Art In recent years, a photographing optical device is mounted on a portable device such as a cellular phone. In the case of a mobile device, camera shake tends to occur during shooting. Therefore, an optical apparatus capable of correcting camera shake during shooting has been proposed (see, for example, Patent Document 1).

  The optical device described in Patent Document 1 is fixed to a movable portion on which a lens and an image sensor are mounted, a pivot shaft that is fixed to the base of the optical device and contacts the bottom surface of the movable portion, and a base. A leaf spring for swingably supporting the movable part and a swinging mechanism for swinging the movable part are provided. In this optical device, the camera shake is corrected by the movable portion swinging about the pivot shaft by the driving force of the swing mechanism. In this optical apparatus, the swing mechanism is constituted by a drive coil and a drive magnet.

JP 2007-310084 A

  In recent years, in the market of portable devices such as mobile phones, there has been an increasing demand for downsizing and thinning of portable devices. As a result, there has been a demand for downsizing and thinning of optical devices for photography mounted in portable devices. Increasingly. However, if the photographic optical device is reduced in size and thickness, the arrangement space for the driving coil and driving magnet for oscillating the movable part on which the lens and the image sensor are mounted is restricted. It is difficult to obtain a sufficient driving force for the purpose.

  Accordingly, an object of the present invention is to provide a photographic optical device capable of obtaining a sufficient driving force for swinging a lens driving device equipped with a lens and an image sensor even when the size and thickness are reduced. Is to provide.

  In order to solve the above problems, a photographic optical device according to the present invention includes a lens driving device including a lens, an imaging element, and a lens driving mechanism that drives the lens, a sensor that detects the tilt of the lens driving device, and a sensor And a camera shake correction mechanism that corrects camera shake by swinging the lens drive device based on the detection result of the camera, and the camera shake correction mechanism includes a swing drive mechanism that swings the lens drive device. The driving coil includes a driving coil and a driving magnet that are arranged opposite to each other, and the driving coil includes a winding portion formed by winding a conducting wire in the circumferential direction, and a winding start portion or a winding end portion of the driving coil. And a drawer part formed by being drawn from the inner circumference side toward the outer circumference side so as to intersect the winding part, and a coil attachment member to which the drive coil is attached is provided with a drawer part. Wherein the parts or openings are formed.

  In the photographic optical device of the present invention, the coil attachment member to which the drive coil is attached is formed with a recess or an opening for placing a drawer portion formed on the drive coil. Therefore, the lead portion is disposed on the surface of the drive coil opposite to the surface facing the drive magnet (that is, the attachment surface to the coil mounting member), and the lead portion is disposed in the recess or the opening. In the state, the drive coil can be attached to the coil attachment member. Therefore, compared with the case where the driving coil is attached to the coil mounting member in a state where the drawing part is arranged on the surface facing the driving magnet of the driving coil, the drawing part arranged in the recess or the opening part It is possible to increase the number of turns of the drive coil by increasing the thickness of the drive coil by the thickness, and the opposite surface of the drive coil to the drive magnet and the opposite surface of the drive magnet to the drive coil This makes it possible to reduce the gap. As a result, in the present invention, it becomes possible to improve the driving force of the swing drive mechanism, and even when the photographic optical device is reduced in size and thickness, it is sufficient to swing the lens drive device. It becomes possible to obtain a sufficient driving force.

  In the present invention, for example, the coil mounting member is a case body that constitutes the outer peripheral surface of the imaging optical device, and the drive coil has a surface on the side where the lead wire is disposed facing the inner peripheral surface of the case body. Thus, it is being fixed to the internal peripheral surface of a case body. In this case, it is preferable that an opening is formed in the case body. With this configuration, for example, a through hole serving as an opening may be formed on the side surface of the case body, so that the case body can be easily manufactured as compared with the case where the concave portion is formed on the inner peripheral surface of the case body. Become.

  As described above, the photographing optical device according to the present invention can obtain a sufficient driving force for swinging the lens driving device on which the lens and the image sensor are mounted even when the lens optical device is downsized and thinned. It becomes possible.

  Hereinafter, embodiments of the present invention will be described with reference to the drawings.

(Configuration of optical device for photographing)
FIG. 1 is a perspective view of a photographing optical apparatus 1 according to an embodiment of the present invention. FIG. 2 is a cross-sectional view taken along the line EE of FIG. FIG. 3 is a view for explaining the relationship between the driving coil 23 and the opening 16a shown in FIG. FIG. 4 is a diagram for explaining a connection state of the drive coil 23 shown in FIG.

  In the following description, as shown in FIG. 1, the three directions orthogonal to each other are defined as an X direction, a Y direction, and a Z direction. In FIG. 1, the X1 direction side is the “right” side, the X2 direction side is the “left” side, the Y1 direction side is the “front” side, the Y2 direction side is the “rear (rear)” side, and the Z1 direction side is “up”. The “side” and the Z2 direction side are the “lower” side. In this embodiment, the Z direction is the direction of the optical axis (optical axis direction) of the photographing optical device 1 when it is not swinging.

  The photographic optical device 1 of this embodiment is a small and thin camera mounted on a portable device such as a cellular phone, and is formed in a substantially rectangular parallelepiped shape as a whole. As shown in FIGS. 1 and 2, the photographing optical device 1 includes a lens driving device 2 on which a lens and an imaging device (not shown) are mounted, a sensor 4 that detects the tilt of the lens driving device 2, and lens driving. A support 5 that supports the device 2 and a swing drive mechanism 6 that swings the lens drive device 2 are provided.

  As described above, the lens driving device 2 is equipped with a lens and an image sensor. Specifically, a lens is mounted on the upper end side of the lens driving device 2, and an imaging element is mounted on the lower end of the lens driving device 2. The lens driving device 2 is equipped with a lens driving mechanism for driving the lens in the optical axis direction. This lens driving mechanism is constituted by, for example, a driving coil and a driving magnet.

  The lens driving device 2 is formed in a substantially rectangular parallelepiped shape as a whole. The front and rear and left and right side surfaces of the lens driving device 2 are covered with a cover member 9 formed in a substantially square cylindrical shape with a bottom having an open lower end. A circular through hole 9a is formed at the bottom of the cover member 9 disposed on the upper end side. In addition, a flange 9b is formed at the lower end of the cover member 9 so as to expand outward in the front-rear direction and outward in the left-right direction. A drive magnet 21 (described later) that constitutes the swing drive mechanism 6 is fixed to each of the front and rear and left and right side surfaces of the cover member 9.

  The sensor 4 is a gyro sensor (angular velocity sensor) and is disposed below the lens driving device 2. A flexible printed circuit board (FPC) 10 is connected to the sensor 4. The FPC 10 is also connected to an image sensor mounted on the lens driving device 2. The FPC 10 is drawn on the lower end side of the photographing optical device 1 and pulled out from the left side surface of the photographing optical device 1.

  The sensor 4 is disposed inside a sensor cover member 11 that is formed in a flat and substantially rectangular tube shape with a bottom that opens at the upper end. At the center of the bottom of the sensor cover member 11 disposed on the lower end side, a contact surface 11a with which a fulcrum protrusion 15b described later contacts is formed in a flat shape. Further, at the upper end of the sensor cover member 11, a flange portion 11 b that comes into contact with the flange portion 9 b of the cover member 9 from below is formed so as to spread outward in the front-rear direction and outward in the left-right direction. In this embodiment, the flange portion 9b and the flange portion 11b are fixed to each other. That is, the sensor cover member 11 is fixed to the lower end of the cover member 9.

  In this embodiment, the lens driving device 2, the sensor 4, the cover member 9, and the sensor cover member 11 are supported by the support 5 so as to be swingable. That is, the lens driving device 2, the sensor 4, the cover member 9 and the sensor cover member 11 constitute a movable module 12 that can swing with respect to the support 5.

  The support 5 includes a base body 15 constituting the lower surface of the photographing optical device 1 and case bodies 16 constituting the front and rear and left and right outer peripheral surfaces of the photographing optical device 1. A stopper member 18 for restricting the swing range of the movable module 12 is fixed to the case body 16. A leaf spring 17 is fixed to the stopper member 18 to support the movable module 12 in a swingable manner.

  The base body 15 is formed in a substantially rectangular shape. A projecting portion 15 a projecting upward is formed at the approximate center of the base body 15. In addition, a fulcrum protrusion 15b serving as a fulcrum for swinging the movable module 12 is formed on the upper surface of the protruding portion 15a. In other words, in this embodiment, the swinging fulcrum of the movable module 12 is disposed below the movable module 12. The fulcrum protrusion 15 b is formed in a hemispherical shape, for example, and is in contact with the contact surface 11 a of the sensor cover member 11. In this embodiment, a fulcrum portion 19 serving as a center of oscillation of the lens driving device 2 is configured by the fulcrum protrusion 15b and the contact surface 11a.

  The case body 16 is formed in a substantially rectangular tube shape having upper and lower ends opened. A base body 15 is fixed to the lower end side of the case body 16. At substantially the center of the front and rear side surfaces and the left and right side surfaces of the case body 16, an opening portion 16 a for disposing a drawer portion 23 d of a driving coil 23, which will be described later, constituting the swing drive mechanism 6 penetrates each side surface. It is formed as follows. The opening 16a is formed in a substantially rectangular shape. Further, the height of the opening 16a (the vertical width in FIG. 2) is formed larger than the width (the vertical width in FIG. 3) of the long side portion 23b constituting the drive coil 23 described later. . Note that the case body 16 of this embodiment is formed of a nonmagnetic metal material.

  The plate spring 17 is formed in a substantially rectangular shape as a whole. The four corners of the leaf spring 17 are fixed to the case body 16 via the stopper member 18, and the movable module 12 (specifically, the sensor cover member 11) is fixed to the center portion of the leaf spring 17. The leaf spring 17 includes a fixed portion that is fixed to the case body 16, a holding portion that holds the movable module 12, and a spring portion that connects the fixing portion and the holding portion.

  Note that the leaf spring 17 generates a pressurizing force to reliably contact the contact surface 11a of the sensor cover member 11 and the fulcrum protrusion 15b of the base body 15 (that is, the movable module 12 is moved downward). It is fixed to the case body 16 via the stopper member 18 in a bent state so that a biasing force for biasing is generated.

  The stopper member 18 is fixed to the inner peripheral surface of the case body 16. Specifically, the two stopper members 18 are provided in the case body at positions where they can contact the upper surface of the flange portion 9b of the cover member 9 and positions where they can contact the lower surface of the flange portion 11b of the sensor cover member 11. 16 is fixed to the inner peripheral surface, and the swing range of the movable module 12 is regulated by the stopper member 18 and the flange portions 9b and 11b.

  The swing drive mechanism 6 includes a drive magnet 21 and a drive coil 23 disposed to face the drive magnet 21. The swing drive mechanism 6 of this embodiment includes four drive magnets 21 and four drive coils 23.

  The drive magnet 21 is formed in a substantially rectangular plate shape. The driving magnet 21 is composed of two magnet pieces, a first magnet piece 21a and a second magnet piece 21b. Specifically, the first magnet piece 21a and the second magnet piece 21b are bonded and fixed while the lower surface of the first magnet piece 21a and the upper surface of the second magnet piece 21b are in contact with each other. Is formed.

  One drive magnet 21 is fixed to each of the front and rear side surfaces and the left and right side surfaces of the cover member 9. That is, the drive magnet 21 is fixed to the outer peripheral surface of the cover member 9 and is disposed inside the case body 16. The driving magnet 21 swings together with the lens driving device 2. As described above, the cover member 9 is made of a magnetic material, and the cover member 9 functions as a back yoke of the drive magnet 21.

  In this embodiment, the driving magnet 21 fixed to the left and right side surfaces of the cover member 9 is magnetized so that the magnetic pole formed on the right surface of the driving magnet 21 is different from the magnetic pole formed on the left surface. The driving magnet 21 fixed to the left and right side surfaces of the cover member 9 includes a magnetic pole formed on the outer surface of the first magnet piece 21a and a magnetic pole formed on the outer surface of the second magnet piece 21b in the left-right direction. Are different (that is, the magnetic poles formed on the inner surface of the first magnet piece 21a and the magnetic poles formed on the inner surface of the second magnet piece 21b in the left-right direction) are magnetized.

  Similarly, the driving magnet 21 fixed to the front and rear side surfaces of the cover member 9 is magnetized so that the magnetic pole formed on the front surface of the driving magnet 21 and the magnetic pole formed on the rear surface are different. Further, the driving magnet 21 fixed to the front and rear side surfaces of the cover member 9 includes a magnetic pole formed on the outer surface of the first magnet piece 21a and a magnetic pole formed on the outer surface of the second magnet piece 21b in the front-rear direction. Are magnetized differently.

  For example, the right side surface of the first magnet piece 21 a of the driving magnet 21 fixed to the right side surface of the cover member 9 is magnetized to the S pole and the left side surface is magnetized to the N pole. The second magnet piece 21 b of the driving magnet 21 is magnetized. The right side is magnetized to the N pole and the left side is magnetized to the S pole. Similarly, the left side surface of the first magnet piece 21a of the driving magnet 21 fixed to the left side surface of the cover member 9 is magnetized to the S pole, and the right side surface is magnetized to the N pole. The left side surface of 21b is magnetized to the N pole, and the right side surface is magnetized to the S pole.

  Further, for example, the rear side surface of the first magnet piece 21 a of the driving magnet 21 fixed to the rear side surface of the cover member 9 is magnetized to the N pole, and the front side surface is magnetized to the S pole. The rear side of the piece 21b is magnetized to the S pole and the front side is magnetized to the N pole. Similarly, the front side surface of the first magnet piece 21a of the driving magnet 21 fixed to the front side surface of the cover member 9 is magnetized to the N pole, and the rear side surface is magnetized to the S pole. The front side surface of 21b is magnetized to the S pole and the rear side surface is magnetized to the N pole.

  The drive coil 23 has a conductive wire 24 (see FIG. 4) having an insulating coating and a fusion coating that further covers the insulating coating wound in an air-core shape (that is, a core such as a bobbin). It is an air-core coil (not provided). One drive coil 23 is fixed to each of the front and rear side surfaces and the left and right side surfaces of the case body 16 via an insulating film 25. That is, the driving coil 23 is fixed to the inner peripheral surface of the case body 16 via the film 25. The case body 16 of this embodiment is a coil attachment member to which the drive coil 23 is attached.

  The driving coil 23 of this embodiment is formed by winding a conducting wire 24 in a substantially rectangular shape. That is, as shown in FIG. 3, the driving coil 23 includes a winding portion 23 a formed by winding a conducting wire 24 in the circumferential direction. The winding part 23a is composed of two long side parts 23b and two short side parts 23c.

  Further, in this embodiment, the driving coil 23 fixed to the right side surface of the case body 16 (hereinafter, when this driving coil 23 is distinguished from other driving coils 23, it is referred to as “driving coil 23A”. And the driving coil 23 fixed to the left side surface of the case body 16 (hereinafter, when this driving coil 23 is distinguished from other driving coils 23, it is referred to as “driving coil 23B”). .) Is constituted by one conductive wire 24 as shown in FIG. That is, two winding portions 23 a are formed by one conductive wire 24.

  Similarly, the driving coil 23 that is fixed to the front side surface of the case body 16 and the driving coil 23 that is fixed to the rear side surface of the case body 16 are configured by one conductive wire 24. In addition, the edge part of the conducting wire 24 is connected to the flexible printed circuit board which abbreviate | omits illustration.

  As shown in FIGS. 3 and 4, the driving coil 23 </ b> A is provided from the inner peripheral side so that the winding start portion of the driving coil 23 </ b> A intersects the winding portion 23 a (specifically, the long side portion 23 b). A drawer portion 23d that is pulled out toward the outer peripheral side is formed. Further, the driving coil 23B has an outer periphery from the inner periphery side so that a winding start portion (a so-called one end portion of the connecting wire) of the driving coil 23B connected to the winding end portion of the driving coil 23A intersects the long side portion 23b. A drawer portion 23d that is pulled out toward the side is formed. Similarly, in the driving coil 23 fixed to the front side surface or the rear side surface of the case body 16, the winding start portion of the driving coil 23 crosses the long side portion 23b from the inner peripheral side toward the outer peripheral side. A drawer portion 23d to be drawn out is formed.

  As described above, the driving coil 23 is fixed to the inner peripheral surface of the case body 16. Specifically, the lead-out portion 23d is disposed in the opening 16a so that the surface of the drive coil 23 on which the lead-out portion 23d is formed faces the inner peripheral surface of the case body 16. Moreover, the driving coil 23 is fixed to the inner peripheral surface of the case body 16. Further, the driving coil 23 is fixed to the case body 16 so that the short side portion 23c of the driving coil 23 and the vertical direction coincide with each other. The film 25 has a notch (not shown) in which the drawer 23d is disposed at a position corresponding to the opening 16a.

  As shown in FIG. 2, the driving magnet 21 and the driving coil 23 are arranged to face each other with a predetermined gap. Specifically, even if the movable module 12 swings with the fulcrum portion 19 as a fulcrum, the drive magnet 21 and the drive coil 23 are set in a predetermined manner so that the drive magnet 21 and the drive coil 23 do not come into contact with each other. Oppositely arranged with a gap.

  In this embodiment, when no current is supplied to the driving coil 23, the movable module 12 is in a neutral position that is not inclined with respect to the support 5 as shown in FIG. 2. In this embodiment, the left and right outer surfaces of the drive magnets 21 fixed to the left and right side surfaces of the cover member 9 are the outer sides in the left and right direction as the movable module 12 is in the neutral position. The drive magnet 21 is formed so that the cross-sectional shape when viewed from the front-rear direction is substantially trapezoidal. Similarly, when the movable module 12 is in the neutral position, the outer surface in the front-rear direction of the driving magnet 21 fixed to the front and rear side surfaces of the cover member 9 is gradually moved outward in the front-rear direction as it goes downward. The drive magnet 21 is formed so that its cross-sectional shape is substantially trapezoidal when viewed from the left-right direction.

  Further, in the present embodiment, as shown in FIG. 2, the center position of the driving coil 23 in the vertical direction is arranged above the contact surface between the first magnet piece 21a and the second magnet piece 21b. The driving magnet 21 and the driving coil 23 are arranged to face each other.

  In the photographic optical device 1 configured as described above, when camera shake is detected by the sensor 4, current is supplied to the driving coil 23 based on the detection result of the sensor 4, and the movable module 12 is connected to the fulcrum portion. The camera shake is corrected by swinging around 19. In this embodiment, the lens driving device 2 is swung based on the detection result of the sensor 4 by the fulcrum portion 19 including the contact surface 11a and the fulcrum protrusion 15b, the swing drive mechanism 6, and the leaf spring 17. A camera shake correction mechanism is configured to correct the camera shake by moving it.

(Main effects of this form)
As described above, in this embodiment, the opening 16a for arranging the lead portion 23d formed in the driving coil 23 is formed in the case body 16. Further, the surface of the drive coil 23 on the side where the lead-out portion 23d is formed is opposed to the inner peripheral surface of the case body 16, and the lead-out portion 23d is disposed in the opening 16a. The driving coil 23 is fixed to the inner peripheral surface of the case body 16. That is, the lead portion 23 d is not disposed on the surface of the drive coil 23 that faces the drive magnet 21.

  For this reason, in this embodiment, the driving coil 23 is made thicker by the thickness of the drawing portion 23d than in the case where the drawing portion 23d is disposed on the surface of the driving coil 23 facing the driving magnet 21. The number of turns of the driving coil 23 can be increased, and the gap between the surface of the driving coil 23 facing the driving magnet 21 and the surface of the driving magnet 21 facing the driving coil 23 can be reduced.

  That is, when the lead-out portion 23d is arranged on the surface of the drive coil 23 facing the drive magnet 21, the drive coil of the drive magnet 21 when the movable module 12 swings with the fulcrum portion 19 as a fulcrum. The thickness of the driving coil 23 is set so that the surface facing the surface 23 does not contact the lead portion 23d of the driving coil 23, and the surface facing the driving coil 23 of the driving magnet 21 and the driving coil It is necessary to set a gap with the 23 drawer portions 23d. Therefore, the thickness of the driving coil 23 is reduced, and the opposing surface of the driving coil 23 to the driving magnet 21 (the portion excluding the drawer portion 23d) and the driving coil 23 of the driving magnet 21 are opposed to each other. The gap between the surfaces becomes wider.

  On the other hand, in this embodiment, when the movable module 12 swings with the fulcrum portion 19 as a fulcrum, the opposing surface of the drive magnet 21 to the drive coil 23 and the drive magnet 21 of the drive coil 23 The thickness of the drive coil 23 is set so that it does not come into contact with the opposite surface of the drive magnet 23, and the opposite surface of the drive magnet 21 to the drive coil 23 and the opposite surface of the drive coil 23 to the drive magnet 21 are Therefore, the number of turns of the driving coil 23 can be increased by increasing the thickness of the driving coil 23 by the thickness of the lead-out portion 23d, and the driving magnet 21 of the driving coil 23 can be increased. The gap between the opposite surface and the opposite surface of the drive magnet 21 to the drive coil 23 can be reduced.

  Therefore, in this embodiment, the driving force of the swing drive mechanism 6 can be improved, and even when the photographing optical device 1 is reduced in size and thickness, sufficient for swinging the lens drive device 2. It becomes possible to obtain a sufficient driving force.

  In this embodiment, the case body 16 is formed with an opening 16 a penetrating the side surface of the case body 16. Therefore, for example, the manufacturing of the case body 16 is facilitated as compared with the case where the concave portion for arranging the drawing portion 23d is formed on the inner peripheral surface of the case body 16.

  In this embodiment, the height (width in the vertical direction) of the opening 16 a of the case body 16 is formed larger than the width (width in the vertical direction) of the long side portion 23 b that constitutes the drive coil 23. Therefore, as shown in FIG. 3, the conducting wire exposed at the opening 16a can be pulled back from the lower portion of the opening 16a to the inner peripheral side of the case body 16. Therefore, the conducting wire is not sandwiched between the winding portion 23a of the driving coil 23 and the edge of the opening 16a, and disconnection or damage of the conducting wire can be avoided.

(Other embodiments)
The above-described embodiment is an example of a preferred embodiment of the present invention, but is not limited thereto, and various modifications can be made without departing from the scope of the present invention.

  In the embodiment described above, the opening 16 a for arranging the lead portion 23 d of the driving coil 23 is formed on the side surface of the case body 16. In addition to this, for example, a recess for arranging the drawer portion 23 d may be formed so as to be recessed from the inner peripheral surface of the case body 16.

  In the embodiment described above, the drive magnet 21 is attached to the cover member 9, and the drive coil 23 is attached to the case body 16. In addition, for example, the driving magnet 21 may be attached to the case body 16 via a yoke, and the driving coil 23 may be attached to the cover member 9. In this case, the cover member 9 is formed with a recess or an opening for arranging the lead portion 23d of the driving coil 23. In this case, the cover member 9 is a coil attachment member to which the drive coil 23 is attached. If the case body 16 is formed of a magnetic material, the drive magnet 21 may be directly attached to the case body 16.

  In the embodiment described above, the lead portion 23d is formed by being drawn from the inner peripheral side toward the outer peripheral side so that the winding start portion of the drive coil 23 intersects the long side portion 23b. In addition, for example, a lead portion 23d may be formed by being drawn from the inner peripheral side toward the outer peripheral side so that the winding end portion of the drive coil 23 intersects the long side portion 23b. Further, the lead portion 23d may be formed by being drawn from the inner peripheral side toward the outer peripheral side so that the winding start portion or the winding end portion of the driving coil 23 intersects the short side portion 23c.

  In the embodiment described above, the opening 16a is formed in a substantially rectangular shape, but the opening 16a may be formed in another shape such as a circular shape, an elliptical shape, or a polygonal shape. In the embodiment described above, the opening 16a is formed at substantially the center of the side surface of the case body 16, but the opening 16a may be formed so as to correspond to the arrangement position of the drawer portion 23d.

  In the embodiment described above, the drive magnet 21 is constituted by two magnet pieces, the first magnet piece 21a and the second magnet piece 21b. In addition to this, for example, the drive magnet 21 may be configured by a single magnet piece.

1 is a perspective view of a photographic optical device according to an embodiment of the present invention. It is sectional drawing of the EE cross section of FIG. It is a figure for demonstrating the relationship between the coil for a drive shown in FIG. 1, and an opening part. It is a figure for demonstrating the connection state of the drive coil shown in FIG.

Explanation of symbols

DESCRIPTION OF SYMBOLS 1 Optical device for imaging | photography 2 Lens drive device 4 Sensor 6 Oscillation drive mechanism 16 Case body (coil attachment member)
16a Opening part 21 Driving magnet 23 Driving coil 23a Winding part 23d Lead part 24 Conductor

Claims (3)

A lens driving device equipped with a lens, an image sensor, and a lens driving mechanism for driving the lens, a sensor for detecting the tilt of the lens driving device, and swinging the lens driving device based on a detection result of the sensor And a camera shake correction mechanism that corrects camera shake,
The camera shake correction mechanism includes a swing drive mechanism that swings the lens drive device,
The swing drive mechanism includes a drive coil and a drive magnet that are arranged to face each other,
The driving coil includes a winding portion formed by winding a conducting wire in a circumferential direction, and an outer periphery from an inner peripheral side so that a winding start portion or a winding end portion of the driving coil intersects the winding portion. A drawer portion formed by being pulled out toward the side,
An imaging optical device, wherein a coil attachment member to which the drive coil is attached is formed with a recess or an opening for arranging the drawer portion. The coil attachment member is a case body constituting an outer peripheral surface of the photographing optical device,
2. The driving coil is fixed to an inner peripheral surface of the case body so that a surface on a side where the lead wire is disposed faces an inner peripheral surface of the case body. The optical apparatus for photography as described.   The photographing optical device according to claim 2, wherein the opening is formed in the case body.

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